WO2011153932A1

WO2011153932A1 - Structure and heat insulation integrated composite brick

Info

Publication number: WO2011153932A1
Application number: PCT/CN2011/075386
Authority: WO
Inventors: 王家邦; 王立旺; 傅晓云
Original assignee: 浙江大学
Priority date: 2010-06-07
Filing date: 2011-06-07
Publication date: 2011-12-15

Abstract

A structure and heat insulation integrated composite brick and the production method thereof are provided. The composite brick comprises heavy-weight working layer made from dense refractory material and light-weight heat insulation layer made from light-weight aggregate. The heavy-weight working layer and the light-weight heat insulation layer are combined by vibration pressing or machine pressing, and the length ratio of the heavy-weight working layer to the light-weight heat insulation layer is 1-5:3-1. The composite brick overcomes the shortcoming of high thermal conductivity belonging to the conventional heavy-weight brick, and has the advantages of good wear resistance, good fire resistance, high structural strength and good heat insulation property.

Description

Structural heat insulation integrated composite brick and preparation method thereof

The invention relates to a refractory composite brick and a preparation method thereof, in particular to a structural heat insulation integrated composite brick and a preparation method thereof. Background technique

With the continuous emergence of new technologies for cement production, the main equipment for cement production is developing in a large-scale direction. Increasing production, improving quality, saving energy and reducing costs have become the key to increasing efficiency in production management. Most of the existing refractory bricks and heat-insulating bricks are of a single structure. When used, it is necessary to use bricks of various performances. If they are used in relatively fixed equipment, such as tunnel kiln and downdraft kiln, they can meet the requirements. However, in some relatively moving equipment, such as rotary kiln, it is difficult to meet the requirements. Some manufacturers and research institutes have carried out research and research on this, and introduced some composite bricks combining heavy materials and lightweight materials. However, due to the low structural strength of the lightweight insulation layer, it is unable to meet the requirements of use without a large scope. Promotion, or focus on heavy bricks. Taking the 10000t/d rotary kiln of Conch Group as an example, the front transition zone uses spinel bricks and the firing zone uses magnesia chrome bricks, because the thermal conductivity of the pre-transition zone spinel bricks and the fired zone magnesia chrome bricks is large (≥ 2.7W/nvK), which makes the outer wall temperature of the kiln high (about 380 °C, 420 °C at high temperature). The outer wall temperature of the cylinder is higher, which on the one hand increases the heat dissipation of the kiln cylinder, thereby increasing the heat consumption of the clinker and causing an increase in the unit cost of the clinker. On the other hand, it is easy to cause the cylinder to be thermally expanded, causing the temperature of the lining of the kiln to rise. High, especially in the late or summer use, it brings great hidden dangers to the normal operation of the equipment. Overheating of the cylinder increases the probability of damage to the mechanical equipment and accelerates the deformation of the cylinder. The deformation of the cylinder accelerates the mechanical damage of the lining. The result is that the bricks are dropped and the kiln is stopped, which affects the operation rate of the cement rotary kiln. Therefore, if the composite brick with double function of fire resistance and heat insulation can be used in this part, the temperature of the cylinder of the transition zone and the firing zone can be reduced, the heat loss can be reduced, and the maintenance of the equipment can be improved, and the operation rate of the equipment can be improved. If composite bricks suitable for different structural features are used in all high temperature parts, the existing problems can be solved well and can be applied to different high energy consumption industries.

Summary of the invention

In order to overcome the shortcomings of the thermal conductivity of magnesium alumina bricks, magnesia chrome bricks and silicon molybdenum bricks for rotary kiln, the invention aims to provide a series of structural heat insulation integrated composite bricks and a preparation method thereof, which adopts heavy and light phase. The combination method is used to reduce the thermal conductivity, and at the same time overcome the disadvantages of low strength and low refractoriness of the lightweight parts of the existing composite brick. Structure/Insulation Integrated Composite refractory is a functional composite that combines structural and thermal insulation functions. It is an energy-saving and emission-reduction product that is urgently needed in the world.

The technical solution adopted by the present invention to solve the technical problem thereof is:

The structural heat insulation integrated composite brick comprises a heavy working layer prepared by using a dense refractory material as a raw material and a lightweight heat insulating layer prepared by using light aggregate and powder as raw materials.

Preferably, the heavy working layer is made of magnesia, magnesia, dolomite, magnesia, magnesia-zirconium, magnesia-zirconium, magnesium-aluminum spinel, magnesium spinel zirconium, corundum Spinel, corundum, corundum-mullite, zirconium corundum, chrome corundum, mullite, zirconium corundum mullite, high alumina, silicon molybdenum, silicon carbide, clay, High siliceous, forsterite, magnesium aluminum titanium, magnesium titanium or alkali resistant.

Preferably, in the heavy working layer, the mass percentages of various kinds of chemical components are as follows: 1) magnesium, wherein MgO% ≥ 80%; 2) magnesium chrome, wherein MgO% is 25~85 %, Cr ₂ 0 ₃ % is 5~30%; 3) Dolomite, wherein MgO% is 40~60%, CaO% is 40~55%; 4) Magnesia, wherein MgO% is 64.8~83% , CaO% is 13-30%; 5) Magnesium zirconium, wherein MgO% is 41.5~87%, CaO% is 5~60%, Zr0 ₂ % is 1.5~15%; 6) Magnesium zirconium, of which MgO %≥90%, Zr0 ₂ % is 1.4~5%; 7) Magnesium aluminum spinel, where MgO%≥80%, A1 ₂ 0 ₃ % is 5~10%; 8) Magnesium spinel zirconium, Where MgO% ≥ 80%, A1 ₂ 0 ₃ % is 5~15%, Zr0 ₂ % is 0.7~3%; 9) Corundum spinel, wherein Al ₂ O ₃ %≥80%, MgO% is 10~20%; 10) corundum, wherein Α1 ₂ Ο ₃ %≥90%; 11) corundum-mullite, of which Al ₂ 0 ₃ ≥72%, Si0 ₂ % is 5~28%; 12) Zirconium corundum, wherein Al ₂ O ₃ %≥60%, Zr0 ₂ % is 5~30%; 13)Chromium corundum, wherein Al ₂ O ₃ %≥60%, Cr ₂ 0 ₃ % is 5~30%; 14) mullite, wherein Al ₂ 0 ₃ %>65%, Si0 ₂ %>25%; 15) Zirconium corundum mullite , wherein A1 ₂ 0 ₃ % is 40 to 83%, Si0 ₂ % is 12 to 25%, Zr0 ₂ % is 5 to 40%; 16) high aluminum, wherein A1 ₂ 0 ₃ % is 40% to 90%; 17) Silica, wherein Α1 ₂ Ο ₃ % ≥ 60%, SiC% is 10-30%; 18) silicon carbide, wherein SiC%>50%; 19) clay, wherein A1 ₂ 0 ₃ % is 30 -45%, Si0 ₂ % is 45~65%; 20) high siliceous, wherein SiO ₂ % ≥ 70%; 21) forsterite, wherein MgO% is 40~50%, Si0 ₂ % is 30~40 %; 22) magnesium aluminum titanium, wherein A1 ₂ 0 ₃ % is 60~70%, MgO% is 20~25%, Ti0 ₂ % is 5~15%; 23) magnesium titanium, wherein MgO%≥80% , Ti0 ₂ % is 0.2~11%; 24) alkali resistance, wherein A1 ₂ 0 ₃ is 25~30%, Si0 ₂ : 60- 70%, Fe ₂ 0 ₃ : 0 to 2.0%.

The structural heat insulation integrated composite brick is characterized in that: the lightweight heat insulation layer aggregate is an alumina hollow sphere, a magnesium aluminum hollow sphere, a corundum hollow sphere, an aluminum calcium hollow sphere, a magnesium aluminum calcium hollow sphere, Aluminum titanium hollow sphere, magnesium calcium hollow sphere, magnesium chromium hollow sphere, chrome corundum hollow sphere, zirconium corundum hollow sphere, magnesium titanium hollow sphere, magnesia hollow sphere, calcium oxide hollow sphere, light mullite aggregate, lightweight One or a mixture of one or more of high alumina aggregates, floating beads, and light ceramsite.

Preferably, in the lightweight heat insulation layer, the mass percentages of various types of lightweight aggregate chemical components are as follows: 1) alumina hollow spheres, wherein A1 ₂ 0 _{3 is} greater than 98%; 2) magnesium aluminum hollow Ball, wherein A1 ₂ 0 ₃ is 0.1 to 99.9%, MgO is 0.1 to 99.9%; 3) corundum hollow sphere, wherein A1 ₂ 0 _{3 is} greater than 93%; 4) aluminum-calcium hollow sphere, wherein A1 ₂ 0 ₃ is 0.1~ 99.9%, CaO is 0.1-99.9%; 5) Magnesium-aluminum-calcium hollow spheres, wherein CaO is 0.01-99.9%, A1 ₂ 0 ₃ is 0.01-99.9%, MgO is 0.01-99.9%; 6) aluminum-titanium hollow sphere, Wherein A1 ₂ 0 ₃ is 40 to 99.9%, Ti0 ₂ is 0.1 to 60%; 7) magnesium calcium hollow spheres, wherein CaO is 0.1 to 99.9%, MgO is 0.1 to 99.9%; 8) magnesium chromium hollow spheres, wherein MgO It was _{_{70-99.9%, Cr 2 0 3 ¾}} 0.1-30%; 9) chromium corundum hollow spheres, wherein A1 ₂ 0 ₃ of 70~99.9%, Cr ₂ 0 ₃ of 0.1~30%; 10) zirconia alumina hollow ball , wherein A1 ₂ 0 ₃ is 90 to 99.9%, Zr0 ₂ is 0.1 to 10%; 11) magnesium titanium hollow sphere, wherein MgO is 90 to 99.9%, Ti0 ₂ is 0.1 to 10%; 12) magnesium oxide hollow sphere, Wherein MgO is greater than 95%; 13) calcium oxide hollow spheres, CaO greater than 95%; 14) light mullite aggregates, A1 ₂ 0 ₃ greater than 65%; 15) of lightweight high-alumina aggregate, wherein A1 ₂ 0 ₃ greater than 70%; 16) floating beads, wherein A1 ₂ 0 _3% is 25~40%, Si0 _2% is 50~65 %; 17) Light ceramsite, wherein A1 ₂ 0 ₃ % is 18 to 25%, and Si0 ₂ % is 55 to 65%.

The preparation method of the structural heat insulation integrated composite brick, the steps are as follows:

(1) Heavy working layer ingredients:

The heavy working layer may be selected from magnesia, magnesia, dolomite, magnesia, magnesia-zirconium, magnesia-zirconium, magnesium-aluminum spinel, magnesium spinel zirconium, corundum spinel, Corundum, corundum-mullite, zirconium corundum, chrome corundum, mullite, zirconium corundum mullite, high alumina, silicon molybdenum, silicon carbide, clay, high siliceous, magnesium One or more combinations of olivine, magnesium aluminum titanium, magnesium titanium or alkali resistance, mixed with the added binder according to the ratio;

(2) Light insulation layer ingredients:

Lightweight aggregates for lightweight insulation can be selected from alumina hollow spheres, magnesium-aluminum hollow spheres, corundum hollow spheres, aluminum-calcium hollow spheres, magnesium-aluminum-calcium hollow spheres, aluminum-titanium hollow spheres, magnesium-calcium hollow spheres, magnesia-chromium Hollow spheres, chrome corundum hollow spheres, zirconium corundum hollow spheres, magnesium titanium hollow spheres, magnesium oxide hollow spheres, calcium oxide hollow spheres, light mullite aggregates, lightweight high alumina aggregates, floating beads and lightweight ceramsite One or more combinations of the materials; mixing the lightweight aggregate, the powder and the additional binder according to the ratio;

(3) Forming:

After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the dense working layer and the light heat insulating layer is 1 to 5: 3 to 1, and the separator is taken out after the feeding, and the vibration is pressurized. Or machine molding; (4) firing:

After the formed blank is taken out and dried at 80 to 150 ° C, the kiln is fired at 1100 to 1850 ° C for 3 to 8 hours.

Preferably, in the step (3), the molding process is performed on a vibration press, a friction press or a hydraulic press. Preferably, in the step (1), according to the mass percentage, the raw material particles used in the heavy working layer are graded as 35 to 45% of the particles of 1 to 3 mm, 25 to 35% of the particles of less than 1 mm, and not more than 325 mesh of the fine powder 25 ~35%, plus binder 3~5%; in the batching, first mix no more than 325 mesh powder, then mix it evenly in the ball mill, then mix well after the other aggregate particles and the added binder are mixed well. The powder is stirred for 10 to 30 minutes.

Preferably, in the step (2), the lightweight thermal insulation layer has a lightweight aggregate particle size of 0.2 to 5 mm, a natural bulk density of 0.6 to 1.0 g/cm ³ , and a mass percentage by weight. The ratio of the raw materials in the layer is 55-70% of light aggregate, 30~45% of 325 mesh fine powder, and 9~13% of binder, and the lightweight aggregate is proportioned and added with binder in the batching. Mix well, then add the powder proportionately, stirring time is 10~30 minutes.

Preferably, the additional binder used is yellow dextrin, water glass, phosphoric acid solution, aluminum dihydrogen phosphate solution, aluminum glue, silica gel, aluminum sulfate solution, pulp waste liquid, lignosulfonate solution, methyl cellulose solution or Liquid paraffin.

The invention has the beneficial effects that the product has the functions of saving energy consumption, reducing material consumption and reducing the amount of refractory materials of the rotary kiln, various metallurgical kiln and high-temperature equipment without reducing the service life of the material, and can effectively extend the service life of the equipment. .

DRAWINGS

Figure 1 is a structural view of a structural heat insulation integrated composite brick.

In the picture: 1, heavy working layer, 2, lightweight insulation layer.

detailed description

The following examples, unless otherwise stated, refer to percentages by mass.

Example 1 : Magnesia structure heat insulation integrated composite brick

The MS98A sintered magnesia is used as the raw material for the heavy working layer. The particle gradation and its mass percentage are:

Sintered magnesia greater than lmm

Not more than 1mm sintered magnesia

325 mesh sintered magnesium powder

Addition of binder industrial lignosulfonate solution

The mass fraction of the MgO component of the heavy working layer obtained according to the above ratio was 87%.

The raw materials used in the lightweight insulation layer and the mass percentage are: magnesia-chromium hollow spheres 55 %, 325-mesh spinel micro-powders 45%, plus yellow dextrin 6%, used magnesium-chromium hollow spheres Cr ₂ 0 ₃ The mass percentage is 17% and the MgO mass percentage is 80%.

The preparation method of the magnesia structure heat integrated composite brick comprises the following steps:

(1) Ingredients:

Heavy working layer: Firstly mix the sintered magnesia aggregate particles larger than lmm and not more than lmm with the binder, then add 325 mesh powder, stir for 10 minutes and set aside.

High-strength lightweight insulation: Mix the magnesium-chromium hollow sphere lightweight aggregate in proportion with the binder, then add 325 mesh spinel micro-powder in proportion for 30 minutes.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate. The length ratio of the dense working layer and the high-strength lightweight heat-insulating layer is 1:1, and the partition is taken out after the feeding, using vibration Press molding.

(3) Firing: After the molded body is taken out and dried at 150 ° C, the kiln is fired at 1700 ° C for 3 hours.

Example 2: Magnesia structure heat insulation integrated composite brick The MS98A sintered magnesia and DMS-98 fused magnesia are used as raw materials for the heavy working layer. The particle gradation and its mass percentage are:

Sintered magnesia larger than 1mm

No more than 1mm fused magnesia

325 mesh fused magnesium powder

Additive binder pulp waste solution

The mass fraction of the MgO component of the heavy working layer obtained according to the above ratio was 95%.

The raw materials used in the lightweight insulation layer and the mass percentage are: magnesium aluminum hollow sphere 55 %, 325 mesh spinel micro powder 45%, plus industrial lignosulfonate solution 6%, used magnesium aluminum hollow sphere A1 _The mass percentage of ₂₀ ₃ is 70%, and the mass percentage of MgO is 28%.

The method for manufacturing the magnesia structure heat insulation integrated composite brick comprises the following steps:

(1) Ingredients:

Heavy working layer: Firstly mix the sintered magnesia and fused magnesia aggregate particles larger than 1mm and not more than 1mm with the binder, and then add the powder of no more than 325. Stir for 10 minutes and set aside.

High-strength lightweight insulation layer: Mix the magnesium-aluminum hollow sphere lightweight aggregate in proportion with the binder, and then add 325 mesh spinel micro-powder in proportion for 20 minutes.

(2) Forming: After the ingredients are finished, the material cavity of the forming mold is partitioned into two parts by a partition plate. The length ratio of the dense working layer and the high-strength lightweight heat-insulating layer is 1: 2, and the partition is taken out after the feeding, and the vibration is used. Press molding.

(3) Firing: After the molded body is taken out and dried at 150 ° C, the kiln is fired at 1800 ° C for 4 hours.

Example 3: Magnesia structure heat insulation integrated composite brick

The MS83 type sintered magnesia is used as the raw material for the heavy working layer. The particle gradation and its mass percentage are:

Sintered magnesia greater than 1mm 35%

Not more than lmm sintered magnesia 33%

325 mesh sintered magnesium powder 30%

Plus binder yellow dextrin solution 4%

The mass fraction of the MgO component of the heavy working layer obtained according to the above ratio is 80%.

The raw materials used in the lightweight insulation layer and the mass percentage are: magnesium oxide hollow sphere 45%, 325 mesh spinel micropowder 55 plus methylcellulose solution 10%, MgO mass percentage in the magnesia hollow sphere used The content is 97%.

(1) Ingredients:

Heavy working layer: Firstly mix the sintered magnesia with more than lmm and not more than lmm and the binder, then add 325 target powder, stir for 10 minutes and set aside.

High-strength lightweight insulation: Mix the magnesium oxide hollow sphere lightweight aggregate in proportion with the binder, then add 325 mesh spinel micro-powder in proportion for 30 minutes.

(2) Forming: After the ingredients are finished, the material cavity of the forming mold is partitioned into two parts by a partition plate. The length ratio of the dense working layer and the high-strength lightweight heat-insulating layer is 5:3. After the feeding, the partition is taken out, and the vibration is used. Press molding.

(3) Firing: After the molded body is taken out and dried at 100 ° C, the kiln is fired at 1550 ° C for 4 hours.

Example 4: Magnesia structure heat insulation integrated composite brick

The DMS97 sintered magnesia is used as the raw material in the heavy working layer. The particle gradation and its mass percentage are:

More than 1mm sintered magnesia 45% Not more than 1mm sintered magnesia

325 mesh sintered magnesium powder

Adding a binder yellow dextrin solution

The mass fraction of the MgO component of the heavy working layer obtained according to the above ratio was 93%.

The raw materials used in the lightweight insulation layer and the mass percentage are: magnesium titanium hollow sphere 55 %, 325 mesh spinel fine powder 45%, plus methyl cellulose solution 7%, the MgO quality in the magnesium titanium hollow sphere used The percentage is 97%, and the Ti0 ₂ mass percentage is 2%.

(1) Ingredients:

Heavy working layer: Firstly mix the sintered magnesia larger than lmm and not more than lmm with the binder, then add 325 target powder, stir for 10 minutes and set aside.

High-strength lightweight insulation layer: Mix the magnesium-titanium hollow sphere lightweight aggregate in proportion with the binder, and then add 325 mesh spinel powder in proportion to the mixture for 25 minutes.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the dense working layer and the high-strength lightweight heat insulating layer is 4:3, and the partition is taken out after the feeding, and the vibration is adopted. Press molding.

(3) Firing: After the formed body is taken out and dried at 150 ° C, the kiln is fired at 1750 ° C for 4 hours.

Example 5 : Magnesia structure heat insulation integrated composite brick

The MS96 sintered magnesia is used as the raw material for the heavy working layer. The particle gradation and its mass percentage are:

Sintered magnesia greater than lmm

Not more than 1mm sintered magnesia

325 mesh sintered magnesium powder

Additional binder lignosulfonate solution

The mass fraction of the MgO component of the heavy working layer obtained according to the above ratio was 91%.

The raw materials used in the lightweight insulation layer and its mass percentage are: magnesium calcium hollow sphere 40%, 325 mesh spinel micropowder 60%, plus yellow dextrin 8%, the magnesium oxide hollow sphere used in the mass percentage of MgO The content is 45% and the CaO mass percentage is 40%.

(1) Ingredients:

High-strength lightweight insulation: Mix the magnesium-calcium hollow sphere lightweight aggregate in proportion with the binder, then add 325 mesh spinel powder in proportion to the mixture for 30 minutes.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the dense heavy working layer and the high-strength lightweight heat insulating layer is 2:3, and the separator is taken out after feeding. It is formed by vibration pressure molding.

(3) Firing: After the molded body is taken out and dried at 80 ° C, the kiln is fired at 1700 ° C for 4 hours.

Example 6: Magnesia-chromium structure heat insulation integrated composite brick

The heavy working layer is made of Xinjiang chromite ore and MS90A sintered magnesia with a mass percentage of Cr ₂ 0 ₃ of 35.39% and a mass percentage of MgO of 18.39%. The particle size and mass percentage are :

Greater than lmm Xinjiang chromite ore

Sintered magnesia greater than lmm

Not more than 1mm Xinjiang chromite ore

Not more than 1mm sintered magnesia

325 mesh Xinjiang chromite ore

325 mesh sintered magnesium powder

Addition of binder industrial lignosulfonate solution

According to the above ratio, the mass fraction of the MgO component of the heavy working layer is 75%, and the mass percentage of Cr ₂ 0 ₃ is 10%. The raw materials used in the lightweight insulation layer and the mass percentage are: magnesium aluminum hollow sphere 10%, magnesium calcium hollow sphere 10%, magnesium chromium hollow sphere 10%, magnesium titanium hollow sphere 10%, magnesium oxide hollow sphere 15% 325 mesh spinel micropowder 45%, plus yellow dextrin 6 %, the magnesium-aluminum hollow sphere used A1 ₂ 0 ₃ mass percent content is 99.9%, MgO mass percentage is 0.1%, magnesium calcium hollow sphere MgO mass percentage of 99.9%, CaO content is 0.1% by mass percentage, the mass percentage of magnesite-chrome hollow spheres of MgO was 99.9%, Cr ₂ 0 ₃ content of 0.1% mass percent, MgO in the magnesium titanium hollow sphere The mass percentage is 99.9%, the Ti0 ₂ mass percentage is 0.1%, and the MgO mass percentage in the magnesia hollow sphere is 95%.

The method for manufacturing the magnesia-chromium structure heat insulation integrated composite brick comprises the following steps:

(1) Ingredients:

Heavy working layer: Firstly mix the sintered magnesia and chromite larger than lmm and not more than lmm with the binder and add the powder of no more than 325. Stir for 10 minutes and set aside.

High-strength lightweight insulation layer: Mix the magnesium-chromium hollow sphere, the magnesium-calcium hollow sphere, the magnesium-titanium hollow sphere, the magnesia hollow sphere, the magnesium-aluminum hollow sphere lightweight aggregate in proportion and the binder, and then add 325 proportionally. The spinel micropowder was stirred for 30 minutes for use.

(3) Firing: The formed body is taken out and dried at 80 ° C, and then placed in a kiln at 1750 ° C for 8 hours to be fired.

Example 7: Magnesia-chromium structure heat insulation integrated composite brick

Heavy working layer using Cr ₂ 0 ₃ mass percentage of 51.1%, MgO 16% mass percentage of chromium ore and Tibet DMS98 type fused magnesia as raw materials, particle size distribution and the mass percentage of :

Greater than lmm chrome concentrate

Greater than lmm fused magnesia

Not more than lmm fused magnesia

Not more than lmm chrome concentrate

325 mesh chrome concentrate

325 mesh fused magnesium powder

Additive binder pulp waste solution

According to the above ratio, the mass fraction of the MgO component of the heavy working layer was 43%, and the mass percentage of Cr ₂ 0 ₃ was 30%. The raw materials used in the lightweight insulation layer and the mass percentage are: magnesium aluminum hollow sphere 15%, magnesium calcium hollow sphere 15%, magnesium chromium hollow sphere 15%, magnesium titanium hollow sphere 10%, magnesium oxide hollow sphere 15% 325 mesh spinel fine powder 45%, plus pulp waste liquid 10%, the magnesium-aluminum hollow sphere used A1 ₂ 0 ₃ mass percentage is 0.1%, MgO mass percentage is 99.9%, magnesium calcium hollow sphere The mass percentage of MgO is 0.1%, the mass percentage of CaO is 99.9%, the mass percentage of MgO in the magnesia-chromium hollow sphere is 70%, the mass percentage of Cr ₂ 0 ₃ is 30%, and the MgO in the magnesium-titanium hollow sphere The mass percentage is 90%, the Ti0 ₂ mass percentage is 10%, and the MgO mass percentage in the magnesia hollow sphere is 99%.

(1) Ingredients:

Heavy working layer: firstly mix fused magnesia and chrome concentrate larger than lmm and not more than lmm with binder No more than 325 target powder, stir for 30 minutes and set aside.

High-strength lightweight insulation layer: Mix the magnesium-aluminum hollow sphere, the magnesium-calcium hollow sphere, the magnesia-chromium hollow sphere, the magnesium-titanium hollow sphere, the magnesia hollow sphere lightweight aggregate in proportion and the binder, and then add 325 mesh in proportion. Spinel micropowder was stirred for 10 minutes.

(3) Firing: After the molded body is taken out and dried at 150 ° C, the kiln is fired at 1850 ° C for 3 hours.

Example 8: Magnesia-chromium structure heat insulation integrated composite brick

The fused fused chrome sand and MS88 sintered magnesia with Cr ₂ 0 ₃ mass percentage of 36.7% and MgO mass percentage of 38.97% were used as raw materials for the heavy working layer, and the particle size and mass percentage were used. for:

Sintered magnesia larger than 1mm

More than 1mm fused magnesia chrome

Not more than 1mm sintered magnesia

Not more than lmm fused magnesia chrome

325 sintered magnesium powder

325 mesh fused magnesia powder

Additional binder methylcellulose solution

The mass fraction of the MgO component of the heavy working layer obtained according to the above ratio was 85%, and the mass percentage of Cr ₂ 0 ₃ was 5%. The raw materials used in the lightweight insulation layer and the mass percentage are: 60% of the magnesia hollow sphere, 325 mesh spinel micropowder 40 plus 10% methylcellulose solution, the mass percentage of MgO in the magnesia hollow sphere used The content is 97%.

(1) Ingredients:

Heavy working layer: Firstly mix the sintered magnesia and fused magnesia of more than 1mm and not more than 1mm with the binder, and then add the powder of no more than 325. Stir for 20 minutes and set aside.

High-strength lightweight insulation: Mix the magnesium oxide hollow sphere lightweight aggregate in proportion with the binder, then add 325 mesh spinel micro-powder in proportion for 20 minutes.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate. The length ratio of the dense working layer and the high-strength lightweight heat-insulating layer is 5:3, and the partition is taken out after the feeding, using vibration Press molding.

Example 9: Magnesia-chromium structure heat insulation integrated composite brick

The fused fused chrome sand with a Cr ₂ 0 ₃ mass percentage of 36.7% and a MgO mass percentage of 38.97% is larger than the lmm fused magnesia chrome sand in the heavy working layer.

Not more than lmm fused magnesia chrome

325 mesh fused magnesia powder

Additional binder lignosulfonate solution

The weight fraction of the MgO component of the heavy working layer obtained according to the above ratio was 35%, and the mass percentage of Cr ₂ 0 ₃ was 30%. The raw materials used in the lightweight insulation layer and the mass percentage are: magnesia-calcium hollow spheres 55 %, 325-mesh spinel micro-powders 45%, plus yellow dextrin 8%, the magnesium-calcium hollow spheres used in the mass percentage of MgO The content is 45% and the CaO mass percentage is 40%.

(1) Ingredients: Heavy working layer: Firstly mix the fused magnesia slag larger than 1mm and not more than 1mm with the binder, then add the powder of no more than 325 mesh, stir for 10 minutes and then set aside.

(2) Forming: After the ingredients are finished, the material cavity of the forming mold is partitioned into two parts by a partition plate. The length ratio of the dense working layer and the high-strength lightweight heat-insulating layer is 2:3. After the feeding, the partition is taken out, and the vibration is used. Press molding.

(3) Firing: After the molded body is taken out and dried at 150 ° C, the kiln is fired at 1750 ° C for 5 hours.

Example 10: Dolomite structure heat insulation integrated composite brick

The heavy working layer uses dolomite sand with a mass percentage of MgO of 40% and a mass percentage of CaO of 55% as the raw material. The particle gradation and its mass percentage are:

l~3mm dolomite sand 45%

Not more than 1mm dolomite sand 25%

325 mesh dolomite sand 30%

Adding binder liquid paraffin 4%

According to the above ratio, the mass percentage of the obtained heavy working layer component is 40% by mass, and CaO% is 55%, and the rest is other components introduced by the raw material.

The raw materials used in the lightweight insulation layer and the mass percentage are: magnesium magnesium hollow sphere 55 %, 325 mesh dolomite sand 45%, plus binder liquid paraffin 6%, wherein the MgO component quality of the magnesium calcium hollow sphere used The percentage is 99.9% and the CaO mass percentage is 0.01%.

The manufacturing method of the dolomitic structure heat insulation integrated composite brick comprises the following steps:

(1) Ingredients:

Heavy working layer: Firstly mix the aggregate granules with the binder and mix them evenly in the ball mill, then add 325 mesh powder, stir for 10 minutes and set aside;

High-strength lightweight insulation: Mix the magnesium-calcium hollow sphere lightweight aggregate in proportion with the binder, then add 325 mesh powder in proportion and stir for 10 minutes.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 5:1, and the partition is taken out after the feeding, Vibratory press press molding.

(3) Firing: After the molded body is taken out and dried at 130 ° C, the kiln is fired at 1750 ° C for 8 hours.

Example 11: Dolomite structure heat insulation integrated composite brick

The heavy working layer is made of dolomite sand with 40% MgO content, 55% CaO mass percentage and DMS98 fused magnesia with 40% mass content of MgO, particle gradation and its quality. The percentage is:

l~3mm dolomite sand 35%

Not more than 1mm dolomite sand 35%

325 mesh dolomite sand 12.8%

325 mesh fused magnesia 11.2%

Adding binder liquid paraffin 4%

According to the above ratio, the mass percentage of the obtained heavy working layer component is 50% by mass, 50% by CaO%, and the rest is other components introduced by the raw material.

The raw materials used in the lightweight insulation layer and the mass percentage are: 55% of magnesia-calcium hollow spheres, 45% of 325 mesh fused magnesia, and 6% of liquid binder paraffin, of which magnesium-calcium hollow spheres are used. The content of the fraction is 99.9%, and the content of CaO is The amount is 0.01%.

(1) Ingredients:

High-strength lightweight insulation layer: Mix the magnesium-calcium hollow sphere lightweight aggregate in proportion with the binder, then add 325 target powder in proportion and stir for 10 minutes.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 3:2, and the separator is taken out after the feeding, Vibratory press press molding.

(3) Firing: After the molded body is taken out and dried at 80 ° C, the kiln is fired at 1700 ° C for 8 hours.

Example 12: Dolomite structure heat insulation integrated composite brick

The heavy working layer adopts dolomite sand with 40% MgO content, 55% CaO mass percentage and DMS98 fused magnesia with 40% mass content of MgO as raw material, particle gradation and its quality. The percentage is:

l~3mm dolomite sand

Not more than 1mm dolomite sand

No more than 1mm fused magnesia

325 mesh fused magnesia

Additive binder liquid paraffin

According to the above ratio, the mass percentage of the obtained heavy working layer component is 60% by mass, and CaO% is 50%, and the rest is other components introduced by the raw material.

The raw materials used in the lightweight insulation layer and its mass percentage are: 25% magnesia-alumina hollow spheres, 30% magnesia hollow spheres, 325 mesh fused magnesias 45%, plus binder liquid paraffin 6%, among them The mass percentage of MgO in the magnesia hollow sphere used was 95%. The mass percentage of A1 ₂ 0 ₃ component in the magnesium aluminum calcium hollow sphere is 14.9%, the mass percentage of MgO is 85%, and the mass percentage of CaO is 0.01%.

(1) Ingredients:

High-strength lightweight insulation layer: Mix the magnesium-aluminum-calcium hollow sphere and the magnesia hollow sphere lightweight aggregate in proportion and binder, then add 325 mesh powder in proportion and stir for 10 minutes.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 1:1, and the partition is taken out after the feeding, Vibratory press press molding.

(3) Firing: After the molded body is taken out and dried at 100 ° C, the kiln is fired at 1750 ° C for 8 hours.

Example 13: Dolomite structure heat insulation integrated composite brick

l~3mm dolomite sand 40%

Not more than 1mm dolomite sand 25%

325 mesh electric dolomite sand 7.7%

325 mesh fused magnesia 27.3% Adding binder liquid paraffin 5%

According to the above ratio, the mass percentage of the obtained heavy working layer component is 55.6%, CaO% is 40%, and the rest is other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer and the mass percentage are: 25% of magnesia-alumina hollow spheres, 30% of calcium oxide hollow spheres, 45% of 325 mesh dolomite sands, and 6% of liquid binder paraffin. The content of A1 ₂ 0 ₃ in the magnesium aluminum calcium hollow sphere is 4.5%, the mass percentage of MgO is 90%, the mass percentage of CaO is 5%, and the mass percentage of CaO in the hollow sphere of calcium oxide is 95%. .

(1) Ingredients:

High-strength lightweight insulation layer: Mix the magnesium-aluminum-calcium hollow spheres and the calcium oxide hollow spheres lightweight aggregates in proportion and binder, then add 325 mesh powders in proportion and stir for 10 minutes.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 1:3, and the partition is taken out after the feeding, Vibratory press press molding.

(3) Firing: After the molded body is taken out and dried at 150 ° C, the kiln is fired at 1800 ° C for 8 hours.

Example 14: Magnesia-calcium structure heat-insulating integrated composite brick

The heavy working layer uses magnesium dolomite with 75% MgO content and 23% CaO mass percentage, and MS90 sintered magnesia sand as raw material. The particle gradation and its mass percentage are:

More than 1mm magnesium dolomite sand 20%

Sintered magnesia greater than 1mm 15%

Not more than 1mm magnesium dolomite sand 20%

Sintered magnesia not more than 1mm 15%

325 mesh magnesium dolomite sand 16.5%

325 mesh sintered magnesia 14.5%

Adding binder industrial lignosulfonate solution 3%

According to the above ratio, the mass fraction of the MgO component of the heavy working layer was 82.5%, and the mass percentage of the CaO component was 13%.

The raw materials used in the lightweight insulation layer and their mass percentage are: magnesium aluminum calcium hollow sphere 15%, magnesium calcium hollow sphere 15%, magnesium oxide hollow sphere 15%, calcium oxide hollow sphere 10%, 325 mesh magnesium dolomite 45% of micropowder and 6% of yellow dextrin, the mass percentage of MgO in the magnesia-alumina hollow sphere used is 99.9%, the mass percentage of A1 ₂ 0 ₃ is 0.01%, the mass percentage of CaO is 0.01%, magnesium The content of MgO in the calcium hollow sphere is 99.9%, the mass percentage of CaO is 0.1%, the mass percentage of MgO in the hollow sphere of the magnesia is 95%, and the mass percentage of CaO in the hollow sphere of the calcium oxide is 95%.

(1) Ingredients:

Heavy working layer: Firstly mix magnesium dolomite sand and sintered magnesia with more than 1mm and not more than 1mm and binder. Add 325 target powder and stir for 10 minutes.

High-strength lightweight insulation layer: Mix magnesium-aluminum-calcium hollow spheres, magnesium-calcium hollow spheres, magnesia hollow spheres, calcium oxide hollow spheres lightweight aggregates in proportion and binder, and then add 325 mesh magnesium dolomite powder in proportion. Stir for 30 minutes for use.

(2) Molding: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, the dense working layer and the high-strength light The length ratio of the thermal insulation layer is 1: 1, and the separator is taken out after the feeding, and is formed by vibration pressure molding.

(3) Firing: After the molded body is taken out and dried at 150 ° C, the kiln is fired at 1750 ° C for 8 hours.

Example 15 : Magnesia-calcium structure heat-insulating integrated composite brick

The heavy working layer adopts dolomite with MgO content of 43%, CaO content of 50%, DMS97 fused magnesia as raw material, particle gradation and its mass percentage:

More than 1mm dolomite sand 20%

More than 1mm fused magnesia 25%

Not more than 1mm dolomite sand 20%

325 mesh dolomite powder 20%

325 mesh fused magnesia 15%

Plus binder liquid yellow dextrin 5%

According to the above ratio, the weight fraction of the MgO component of the heavy working layer contains 64.8%, and the CaO component: percentage is

30%

The raw materials used in the lightweight insulation layer and the mass percentage are: magnesium aluminum calcium hollow sphere 15%, magnesium calcium hollow sphere 20%, magnesium oxide hollow sphere 20%, calcium oxide hollow sphere 15%, 325 mesh magnesium dolomite 30% of the micropowder, the mass percentage of MgO in the magnesia-alumina hollow sphere used is 0.05%, the mass percentage of A1 ₂ 0 ₃ is 0.01%, the mass percentage of CaO is 99.9%, and the mass of MgO in the magnesia-calcium hollow sphere is 100%. The content of the fraction is 0.1%, the mass percentage of CaO is 99.9%, the mass percentage of MgO in the hollow sphere of the magnesia is 99%, and the mass percentage of CaO in the hollow sphere of the calcium oxide is 98%.

The method for manufacturing the magnesia-calcium structure heat insulation integrated composite brick comprises the following steps:

(1) Ingredients:

Heavy working layer: Firstly mix fused magnesia and dolomite sand of more than 1mm and not more than 1mm with binder, then add 325 mesh fused magnesia powder, stir for 30 minutes and set aside.

High-strength lightweight insulation layer: Mix magnesium-aluminum-calcium hollow spheres, magnesium-calcium hollow spheres, magnesia hollow spheres, calcium oxide hollow spheres lightweight aggregates in proportion and binder, and then add 325 mesh magnesium dolomite powder in proportion. Stir for 10 minutes for use.

Example 16: Magnesia-calcium structure heat insulation integrated composite brick

The heavy working layer is made of 43% MgO, CaO: 50% dolomite, DMS97 fused magnesia as raw material, and the particle size and mass percentage are:

More than 1mm dolomite sand 10%

More than 1mm fused magnesia 30%

Not more than 1mm dolomite sand 10%

No more than 1mm fused magnesia 25

325 mesh dolomite powder 6%

325 mesh fused magnesia 19%

Plus binder liquid pulp waste 3%

The mass fraction of the MgO component of the heavy working layer obtained according to the above ratio was 83%, and the mass percentage of the CaO component was 13%.

The raw materials used in the lightweight insulation layer and the mass percentage are: Magnesium-aluminum-calcium hollow spheres 55 %. 325 mesh dolomite fine powder 45%, In addition, the industrial wood sulfonate solution is 6%, the magnesium aluminate hollow sphere used has a mass percentage of MgO of 0.01%, A1 ₂ 0 ₃ mass percentage of 99.9%, and CaO mass percentage of 0.05%.

(1) Ingredients:

Heavy working layer: Firstly mix fused magnesia and dolomite larger than 1mm and not more than 1mm with binder. Add 325 mesh powder and stir for 15 minutes.

High-strength lightweight insulation: Mix the magnesium-aluminum-calcium hollow sphere lightweight aggregate in proportion with the binder, then add 325 mesh dolomite powder in proportion to the mixture for 20 minutes.

(3) Firing: After the molded body is taken out and dried at 150 ° C, the kiln is fired at 1700 ° C for 6 hours.

Example 17: Magnesium-zirconium-calcium structure heat-insulating integrated composite brick

The raw materials used in the heavy working layer and the mass percentage are: dolomite sand with a mass percentage of MgO of 42% and a mass percentage of CaO of 55%, monoclinic zirconia (Zr0 ₂ mass percentage is 98 %) , sintered magnesia (MgO mass percentage 95%).

More than lmm dolomite sand 38%;

Not more than lmm dolomite sand 31%;

325 mesh zirconia powder 1.6%

325 mesh sintered magnesia 3.4%

325 mesh dolomite sand 26%;

Adding binder business paraffin 5%

The mass fraction of the heavy working layer MgO obtained according to the above ratio is 43.1%, the mass percentage of Zr0 ₂ is 1.5%, and the mass percentage of CaO is 52.2%, and the remaining components are introduced as raw materials.

The raw materials used in the lightweight insulation layer and its mass percentage are: magnesium aluminum hollow sphere 34%, magnesium titanium hollow sphere 21%, dolomite sand 45%, plus binder liquid paraffin 10%, used magnesium aluminum hollow sphere The mass percentage of each component is Mg073%, Al ₂ 0 ₃ 26%, magnesium titanium hollow sphere Mg092%, Ti0 ₂ 7%.

The preparation process includes the following steps:

(1) Ingredients:

The batching process of the heavy working layer is to mix the 325 mesh dolomite sand, sintered magnesia and zirconia powder in a proportioned manner, then mix them evenly in the ball mill, and then mix well after the other aggregate particles and the binder are evenly mixed. Powder, stir for 30 minutes and set aside;

The light insulation layer is compounded by mixing the magnesium aluminum hollow spheres and the magnesium titanium hollow spheres with the binder in proportion, and then adding the dolomite in proportion for 20 minutes.

(2) Forming:

After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 1:3, and the separator is taken out after the feeding, and the vibration is pressed and formed.

(3) firing:

The formed green body was taken out and dried at 150 ° C, and then placed in a kiln at 1750 ° C for 5 hours to be fired.

Example 18: Magnesium-zirconium-calcium structure heat-insulating integrated composite brick

The raw materials used in the heavy working layer and its mass percentage are: Magnesia dolomite sand (the mass percentage of each component is MgO) 75%, CaO 23%), sintered magnesia (95% by mass of MgO), calcium stabilized zirconia (95%)

Greater than lmm magnesium dolomite sand 21.7%

Sintered magnesia greater than lmm 13%

Not more than lmm sintered magnesia 18%

Not more than 1mm calcium stable oxidation Chu 15.8%

325 mesh sintered magnesia 31.5%

Adding binder liquid paraffin 3%

The mass fraction of the heavy working layer MgO obtained according to the above ratio was 75.6%, the mass percentage of Zr0 ₂ was 15.0%, and the mass percentage of CaO was 5.0%, and the rest were other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer and the mass percentage are: magnesium magnesium hollow sphere 43%, magnesia hollow sphere 27%, 325 mesh magnesia 30%, plus binder liquid paraffin 7%, magnesium calcium hollow used The mass percentage of each component in the sphere is Mg073%, Ca026%, magnesia-chromium hollow sphere Mg081%, Cr ₂ 0 ₃ 17%.

The preparation process includes the following steps:

(1) Ingredients:

The batching process of the heavy working layer is to mix the 325 mesh sintered magnesia first and then mix it evenly in the ball mill. Then, after the other aggregate particles and the binder are uniformly mixed, the mixed powder is added and stirred for 28 minutes. ;

The light insulation layer is compounded by mixing the magnesium-calcium hollow spheres and the magnesia-chromium hollow spheres with the binder in proportion, and then adding the magnesia in proportion to the mixture for 20 minutes.

(2) Forming:

After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 1:3. After the feeding, the separator is taken out and pressed by a hydraulic press.

(3) firing:

The formed green body was taken out and dried at 150 ° C, and then placed in a kiln at 1800 ° C for 4 hours to be fired.

Example 19: Magnesium-zirconium-calcium structure heat-insulating integrated composite brick

The raw materials used in the heavy working layer and the mass percentage are: magnesium dolomite sand (mass percentage of each component is MgO 75%, CaO 23%), magnesium stabilized zirconia (95%), sintered magnesia ( The mass percentage of MgO is 95%).

More than lmm magnesium dolomite sand 23

Sintered magnesia greater than lmm 11%

Not more than lmm sintered magnesia 25%

Not more than 1mm magnesium stabilized zirconia 13%

325 mesh sintered magnesium powder 28%

Adding binder liquid paraffin 3%

The mass fraction of the heavy working layer MgO obtained according to the above ratio was 87.0%, the mass percentage of Zr0 ₂ was 9.1%, the mass percentage of CaO was 5.0%, and the rest were other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer and the mass percentage are: 33% of magnesium-aluminum hollow spheres, 35% of magnesium-titanium hollow spheres, 32% of sintered magnesium powder, 9% of liquid paraffin, and each of the magnesium-titanium hollow spheres used. The component mass percentage is Mg092%, Ti0 ₂ 7%, magnesium aluminum hollow sphere Mg073%, Al ₂ 0 ₃ 26%.

The preparation process includes the following steps:

(1) Ingredients:

The batching process of the heavy working layer is to first mix the sintered magnesia of not more than 325 mesh and then mix it in the ball mill. Evenly, after the other aggregate particles and the binder are evenly mixed, the mixed powder is added and stirred for 17 minutes, and then used; the light insulation layer is prepared by pressing the magnesium-titanium hollow sphere and the magnesium-aluminum hollow sphere and the binder. The ratio was evenly mixed, and then the sintered magnesium powder was added in proportion to the mixture for 20 minutes.

(2) Forming:

After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 3:2, and the separator is taken out after the feeding, and is pressed and formed by a hydraulic press.

(3) firing:

The formed green body was taken out and dried at 120 ° C, and then the kiln was fired at 1750 ° C for 6 hours.

Example 20: Magnesium-zirconium-calcium structure heat-insulating integrated composite brick

The raw materials used in the heavy working layer and its mass percentage are: dolomite sand (MgO% 42%, CaO% 55%), magnesium dolomite sand (the mass percentage of each component is MgO 75%, CaO 23%), sintered magnesia (95% by mass of MgO), calcium zirconate (Zr0 ₂ mass percentage 74.3%, CaO% 25.7%), calcium sand (CaO 97%) greater than lmm calcium Sand 40%;

Not more than lmm calcium sand 17.2%

Not more than lmm sintered magnesia 3.8%

Not more than lmm calcium zirconate 13%;

325 mesh sintered magnesia 21%;

325 mesh dolomite powder 5%;

Adding binder liquid paraffin 4%

The mass fraction of the heavy working layer MgO obtained according to the above ratio was 27.3%, the mass percentage of Zr0 ₂ was 9.6%, the mass percentage of CaO was 60%, and the rest were other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer and the mass percentage are: magnesium magnesium hollow sphere 41%, magnesia hollow sphere 23% and dolomite powder 36%, plus liquid paraffin 9%, used in the magnesium aluminum hollow sphere The mass percentage of MgO was 73%, A1 ₂ 0 ₃ was 26%, and MgO in the magnesia hollow sphere was 97%.

The preparation method comprises the following steps:

(1) Ingredients:

The batching process of the heavy working layer is to first mix the sintered magnesium powder of not more than 325 mesh and the dolomite powder, and then mix it evenly in the ball mill, and then add the mixed powder after the other aggregate particles and the binder are uniformly mixed. Stir for 23 minutes and set aside;

The light insulation layer is compounded by mixing the magnesia hollow spheres and the magnesium aluminum hollow spheres with the binder in proportion, and then adding the dolomite powder in proportion for 25 minutes.

(2) Forming:

After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 4:3. After the feeding, the separator is taken out and pressurized by a friction press. forming.

(3) firing:

The formed green body was taken out and dried at 120 ° C, and then the kiln was fired at 1770 ° C for 7 hours.

Example 21: Magnesia-zirconium structure heat-insulating integrated composite brick

The raw materials used in the heavy working layer and the mass percentage thereof are: fused magnesia with a mass percentage of MgO of 97%, and monoclinic zirconia with a mass percentage of 98% of Zr0 ₂

More than lmm fused magnesia 41%; Not more than 1mm fused magnesia 29%;

325 mesh zirconia powder 5.1%

325 mesh fused magnesium powder 24.9%;

Plus binder aluminum sulphate solution 5%

The mass fraction of the heavy working layer MgO obtained according to the above ratio was 92.0%, and the mass percentage of Zr0 ₂ was 5.0%, and the rest were other components introduced by the raw materials.

The raw materials used in the light working layer and its mass percentage are: magnesium aluminum hollow sphere 32%, magnesium titanium hollow sphere 23%, fused magnesium powder 45%, plus yellow dextrin 10%, used in magnesium aluminum hollow sphere The mass percentage of each component was Mg073%, Al ₂ 0 ₃ 26%, magnesium titanium hollow spheres Mg092%, Ti0 ₂ 7%.

The preparation process of the magnesium zirconium structure heat insulation integrated composite brick comprises the following steps:

(1) Ingredients:

The batching process of the heavy working layer is to mix the 325 mesh fused magnesia and zirconia powder in proportion and mix them evenly in the ball mill. Then, after the other aggregate particles and the binder are uniformly mixed, the mixed powder is added. After stirring for 30 minutes, it is reserved; the light insulation layer is compounded by mixing the magnesium aluminum hollow spheres and the magnesium titanium hollow spheres with the binder in proportion, and then adding the sintered magnesium powder in proportion to the mixture for 15 minutes.

(2) Forming:

(3) firing:

The formed green body was taken out and dried at 150 ° C, and then placed in a kiln at 1,700 ° C for 5 hours to be fired.

Example 22: Magnesium-zirconium structure heat-insulating integrated composite brick

The raw materials used in the heavy working layer and the mass percentage thereof are: sintered magnesia with a mass percentage of MgO of 95%, zircon with a Zr0 ₂ mass percentage of 67%.

(1) more than lmm sintered magnesia 38%;

(2) not more than lmm sintered magnesia 31%;

(3) not more than lmm zircon 2.1%;

(4) 325 mesh sintered magnesium powder 29.9%;

(5) Add 3% of binder pulp waste.

The mass fraction of the heavy working layer MgO obtained according to the above ratio was 92.9%, and the mass percentage of Zr0 ₂ was 1.4%, and the rest were other components introduced by the raw materials.

The raw materials used in the light working layer and the mass percentage are: magnesium magnesium hollow sphere 43%, magnesium chromium hollow sphere 27%, spinel powder 30%, plus binder methyl cellulose solution 7%, magnesium calcium used The mass percentage of each component in the hollow sphere is Mg073%, Ca026%, and the mass percentage of each component in the magnesia-chromium hollow sphere is Mg081%, Cr ₂ 0 ₃ 17%.

(1) Ingredients:

The batching process of the heavy working layer is to firstly mix the aggregate particles and the binder, and then add the sintered magnesium powder, and stir for 20 minutes;

The light insulation layer is compounded by mixing the magnesium-calcium hollow spheres and the magnesia-chromium hollow spheres with the binder in proportion, and then adding the spinel powder in proportion to the mixture for 20 minutes.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 1:3. After the feeding, the separator is taken out and pressed by a hydraulic press.

(3) firing:

Example 23: Magnesium-zirconium structure heat-insulating integrated composite brick

The raw materials used in the heavy working layer and the mass percentage thereof are: fused magnesia with a mass percentage of MgO of 97%, zircon with a Zr0 ₂ mass percentage of 67%

More than lmm fused magnesia 41%;

Not more than lmm fused magnesia 33%;

325 mesh fused magnesia 22.4%;

325 mesh zircon 3.6%;

Additional binder lignosulfonate solution 4%

The mass fraction of the heavy working layer MgO obtained according to the above ratio was 93.5%, and the mass percentage of Zr0 ₂ was 1.6%, and the rest were other components introduced by the raw materials.

The raw materials used in the light working layer and its mass percentage are: magnesium aluminum hollow sphere 33%, magnesium titanium hollow sphere 35%, sintered magnesium powder 32%, plus methyl cellulose solution 9%, magnesium titanium hollow sphere used The mass percentage of each component is Mg092%, Ti0 ₂ 7%, and the mass percentage of each component in the magnesium aluminum hollow sphere is Mg073%, Al ₂ 0 ₃ 26%.

The preparation process includes the following steps:

(1) Ingredients:

The batching process of the heavy working layer is to mix the 325 mesh fused magnesia and zircon in proportion and mix them evenly in the ball mill. Then, after the other aggregate particles and the binder are uniformly mixed, the mixed powder is added. After stirring for 25 minutes, the light insulation layer is compounded by mixing the magnesium-titanium hollow spheres and the magnesium-aluminum hollow spheres with the binder in proportion, and then adding the sintered magnesium powder in proportion to the mixture for 20 minutes.

(2) Forming:

(3) firing:

The formed green body was taken out and dried at 120 ° C, and then placed in a kiln at 1800 ° C for 5 hours to be fired.

Example 24: Magnesium-zirconium structure heat-insulating integrated composite brick

The raw materials used in the heavy working layer and its mass percentage are: fused magnesia with a mass percentage of MgO of 97%, sintered magnesite with a mass percentage of MgO of 95%, and the mass percentage of Zr0 ₂ is 98% monoclinic zirconia

More than lmm sintered magnesia 27%;

Greater than lmm fused magnesia 12%

Not more than lmm sintered magnesia 23%

Not more than lmm fused magnesia 11%;

325 mesh fused magnesia 22.7%;

325 mesh zirconia powder 4.3%;

Plus the binding agent yellow dextrin 4%.

The mass percentage of MgO in the heavy working layer obtained according to the above ratio was 92.2%, and the mass percentage of Zr0 ₂ was 4.2%, and the rest were other components introduced by the raw materials. The raw materials used in the light working layer and its mass percentage are: magnesium magnesium hollow sphere 41%, magnesia hollow sphere 23% spinel powder 36%, plus methyl cellulose solution 9%, used in the magnesium aluminum hollow sphere The mass percentage of each component is 73%, and the ratio of A1 ₂ 0 ₃ is 26%. The mass percentage of each component in the magnesia hollow sphere is 97%.

(1) Ingredients:

The batching process of the heavy working layer is to mix the 325 mesh fused magnesia and zirconia powder in proportion and mix them evenly in the ball mill. Then, after the other aggregate particles and the binder are uniformly mixed, the mixed powder is added. After stirring for 20 minutes, the light insulation layer is mixed by uniformly mixing the magnesia hollow spheres and the magnesium aluminum hollow spheres with the binder, and then adding the spinel powder in proportion to the mixture for 25 minutes.

(2) Forming:

(3) firing:

The formed green body was taken out and dried at 120 ° C, and then the kiln was fired at 1750 ° C for 5 hours.

Example 25: Magnesium spinel structure heat insulation integrated composite brick

The heavy working layer is made of DMS98 sintered magnesia and A grade high fused magnesia alumina spinel. The particle gradation and its mass percentage are:

More than 1mm fused magnesia

Less than 1mm fused magnesia

Less than 1mm fused spinel

325 mesh fused magnesia

325 mesh fused spinel

Additional sulfite pulp waste

The resulting ratio of the above-described active layer MgO component heavy mass percentage of 87% A1 ₂ 0 ₃ component material and mass percentage of 10% mass percentage of light used for the active layer: magnesium aluminum hollow ball 70% α -Α1 ₂ 0 ₃ micropowder 30%, plus yellow dextrin 6%. The alumina hollow sphere used has a Α1 ₂ ₃ mass percentage of 98%, and the magnesium aluminum hollow sphere has a Α1 ₂ 0 ₃ mass percentage of 10% and a MgO mass percentage of 87%.

The method for manufacturing the magnesium-aluminum spinel structure heat insulation integrated composite brick comprises the following steps:

(1) Ingredients:

Heavy working layer: Firstly mix more than 1 and not more than 1 fused magnesia and fused spinel aggregate particles and binder, then add no more than 325 mesh powder, stir for 10 minutes and then set aside.

High-strength lightweight insulation layer: Mix the magnesium-aluminum hollow sphere lightweight aggregate in proportion with the binder, then add 325 mesh α-Α1 ₂ ₃ micro-powder in proportion to the mixture for 30 minutes.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the dense working layer and the high-strength lightweight heat insulating layer is 1:1, and the partition is taken out after the feeding, using vibration Press molding.

(3) Firing: After the molded body is taken out and dried by 15CTC, the kiln is fired at 185CTC for 3 hours.

Example 26: Magnesium spinel structure heat insulation integrated composite brick

The heavy working layer is made of DMS98 fused magnesia and yttrium grade fused magnesia-alumina spinel. The particle gradation and its mass percentage are:

More than 1mm fused magnesia Less than 1mm fused magnesia 30%

325 mesh fused magnesia 16%

325 mesh fused spinel 9%

Plus lignosulfonate solution waste 5%

According to the above ratio, the mass percentage of the MgO component in the heavy working layer is 82%, and the mass percentage of the A1 ₂ 0 ₃ component is

5%

The raw materials used in the light working layer and its mass percentage are: magnesium aluminum hollow sphere 15%, magnesium titanium hollow sphere 60%, 325 mesh spinel fine powder 25%, plus methyl cellulose solution 10%. The MgO% in the magnesium-titanium hollow spheres used was 81%, Ti0 ₂ % was 10%; the mass ratio of A1 ₂ 0 ₃ in the magnesium aluminum hollow spheres was 11.1%, and the mass percentage of MgO was 82.9%.

The manufacturing method of the magnesium spinel structure heat insulation integrated composite brick comprises the following steps:

(1) Ingredients:

Heavy working layer: firstly mix the fused magnesia aggregate particles larger than 1mm and not more than 1mm with the binder, then add 325 target powder, stir for 30 minutes and then set aside.

High-strength lightweight insulation layer: Mix the magnesium-aluminum hollow sphere and the magnesium-titanium lightweight aggregate in proportion and binder, then add 325 mesh spinel micro-powder in proportion for 10 minutes.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the dense working layer and the high-strength lightweight heat insulating layer is 5:1, the partition is taken out after the feeding, and the vibration is used. Press molding.

(3) Firing: After the molded body is taken out and dried at 80 ° C, the kiln is fired at 170 CTC for 8 hours.

Example 27: Magnesium spinel structure heat insulation integrated composite brick

The heavy working layer is made of MS90B sintered magnesia and A grade high fused magnesia alumina spinel. The particle gradation and its mass percentage are:

Sintered magnesia greater than 1mm 40%

Less than 1mm sintered magnesia 35%

325 mesh sintered magnesia 16%

325 mesh fused spinel 9%

Plus yellow dextrin 4%;

According to the above ratio, the mass fraction of the MgO component of the heavy working layer is 80%, and the mass percentage of the component of the A1 ₂ 0 ₃ is 10%.

(1) Ingredients:

Heavy working layer: Firstly mix the sintered magnesia aggregate particles larger than lmm and not more than lmm with the binder, and then add the powder of no more than 325. Stir for 10 minutes and set aside.

High-strength lightweight insulation layer: Mix the magnesium-titanium hollow sphere lightweight aggregate in proportion with the binder, and then add 325 mesh spinel micro-powder in proportion for 30 minutes.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the dense working layer and the high-strength lightweight heat insulating layer is 1:3, and the partition is taken out after the feeding, and the vibration is used. Press molding.

(3) Firing: After the molded body is taken out and dried at 80 ° C, the kiln is fired at 1750 ° C for 6 hours. Example 28: Magnesium spinel structure heat insulation integrated composite brick

Sintered magnesia greater than 1mm 45%

Less than 1mm sintered magnesia 25%

325 mesh sintered magnesia 21%

325 mesh fused spinel 9%

Additional methyl cellulose solution 4%;

The raw materials used in the lightweight insulation layer and the mass percentage are: magnesium aluminum hollow sphere 55 %, 325 mesh spinel fine powder 45%, plus industrial lignosulfonate solution 6%, used magnesium aluminum hollow sphere A1 _The mass percentage of ₂₀ ₃ is 70%, and the mass percentage of MgO is 28%.

(1) Ingredients:

Heavy working layer: Firstly mix the sintered magnesia aggregate particles larger than 1mm and not more than 1mm with the binder, and then add the powder of not more than 325 mesh, stir for 20 minutes and then set aside.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the dense working layer and the high-strength lightweight heat-insulating layer is 1: 2, and the partition is taken out after the feeding, using vibration Press molding.

(3) Firing: After the molded body is taken out and dried at 80 ° C, the kiln is fired at 180 CTC for 4 hours. Example 29: Magnesium spinel zirconium structure heat insulation integrated composite brick

The heavy working layer is made of DMS98 fused magnesia, A-grade fused magnesia-alumina spinel and monoclinic zirconium powder. The particle gradation and its mass percentage are:

l~3mm fused magnesia 30%

More than 1mm fused spinel 10%

Not more than 1mm fused magnesia 20%

Not more than 1mm fused spinel 10%

325 mesh fused magnesium powder 20%

325 mesh fused spinel 6.5%

325 mesh monoclinic zirconium powder 3%

Adding binder industrial lignosulfonate solution 3%

According to the above ratio, the mass fraction of MgO in the heavy working layer is 80%, the mass percentage of A1 ₂ 0 ₃ is 15%, and the mass percentage of Zr0 ₂ is 3%.

The raw materials used in the lightweight insulation layer and the mass percentage are: magnesia-chromium hollow sphere 30%, magnesium-aluminum hollow sphere 25%, 325-head spinel micro-powder 45%, plus yellow dextrin 6%, magnesium-chromium used hollow sphere Cr ₂ 0 ₃ mass percentage of 30%, MgO mass percentage of 70%, hollow sphere component magnesium aluminum mass percentage of A1 ₂ 0 ₃ was 0.1%, MgO 99.9%.

The manufacturing method of the magnesium spinel zirconium structure heat insulation integrated composite brick comprises the following steps:

(1) Ingredients: Heavy working layer: Firstly mix the fused magnesia aggregate particles larger than 1mm and not more than 1mm with the binder, and then add the powder of no more than 325. Stir for 10 minutes and set aside.

High-strength lightweight insulation layer: Mix the magnesium-chromium hollow sphere and the magnesium-aluminum hollow sphere lightweight aggregate in proportion and binder, then add 325 mesh spinel micro-powder in proportion for 30 minutes.

(3) Firing: After the molded body is taken out and dried at 150 ° C, the kiln is fired at 1800 ° C for 3 hours.

Example 30: Magnesium spinel zirconium structure heat insulation integrated composite brick

The heavy working layer is made of DMS97 fused magnesia, fused corundum powder and monoclinic zirconium powder. The particle gradation and its mass percentage are:

3~5mm fused magnesia

l~3mm fused magnesia

Not more than lmm fused magnesia

325 mesh fused magnesium powder

325 mesh fused corundum powder

325 mesh monoclinic zirconium powder

Adding a binder yellow dextrin solution

According to the above ratio, the mass fraction of MgO in the heavy working layer is 86%, the mass percentage of A1 ₂ 0 ₃ is 10%, and the mass percentage of Zr0 ₂ is 2%.

The raw materials used in the lightweight insulation layer and the mass percentage are: 23% of the magnesia hollow sphere, 22% of the titanium-titanium hollow sphere, 555% of the 325-mesh spinel micropowder, and 10% of the methylcellulose solution. The mass percentage of MgO in the magnesia hollow sphere is 97%, and the mass percentage of the magnesium-titanium hollow sphere is 99.9%, and Ti0 ₂ is 0.1%.

(1) Ingredients:

Heavy working layer: firstly mix the fused magnesia powder larger than lmm and not more than lmm with the binder, and then add the powder of no more than 325. Stir for 10 minutes and set aside.

High-strength lightweight insulation: Mix the magnesia hollow sphere and the magnesium-titanium hollow sphere lightweight aggregate in proportion and binder, then add 325 mesh spinel micro-powder in proportion for 30 minutes.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate. The length ratio of the dense working layer and the high-strength lightweight heat-insulating layer is 5:1, the partition is taken out after the feeding, and the vibration is used. Press molding.

(3) Firing: After the molded body is taken out and dried at 80 ° C, the kiln is fired at 1800 ° C for 4 hours. Example 31: Magnesium spinel zirconium structure heat insulation integrated composite brick

The heavy working layer is made of DMS97 sintered magnesia, fused corundum powder and monoclinic zirconium powder. The particle size and its mass percentage are:

l~3mm sintered magnesia

Not more than 1mm sintered magnesia

325 mesh sintered magnesium powder

325 mesh fused corundum powder

325 mesh monoclinic zirconium powder

Adding a binder yellow dextrin solution

According to the above ratio, the mass fraction of MgO in the heavy working layer is 83%, the mass percentage of A1 ₂ 0 ₃ is 12%, and the mass percentage of Zr0 ₂ is 1%.

The raw materials used in the lightweight insulation layer and the mass percentage are: magnesium titanium hollow sphere 20%, magnesium calcium hollow sphere 35%, 325 mesh spinel fine powder 45%, plus methyl cellulose solution Ί %, used The content of MgO in the magnesium-titanium hollow sphere is 90%, the mass percentage of Ti0 ₂ is 10%, the content of CaO in the magnesia-calcium hollow sphere is 0.1%, and the MgO is 99.9%.

(1) Ingredients:

Heavy working layer: firstly mix the sintered magnesium powder of more than 1mm and not more than 1mm with the binder, and then add the powder of no more than 325. Stir for 10 minutes and set aside.

High-strength lightweight insulation layer: Mix the magnesium-titanium hollow spheres and the magnesium-calcium hollow spheres lightweight aggregates in proportion and binder, then add 325 mesh spinel micro-powders in proportion for 30 minutes.

(3) Firing: After the formed body is taken out and dried at 150 ° C, the kiln is fired at 1650 ° C for 8 hours.

Example 32: Magnesium spinel zirconium structure heat insulation integrated composite brick

The MS96-type sintered magnesite, ct-Al ₂ 0 ₃ micropowder and monoclinic zirconium powder are used as raw materials for the heavy working layer. The particle gradation and its mass percentage are:

l~5mm sintered magnesia 40%

Not more than 1mm sintered magnesia 30%

325 mesh sintered magnesium powder 20%

325 mesh α-Α1 ₂ 0 ₃ fine powder 8.5%

325 mesh single oblique zirconium powder 1.5%

Plus binder lignosulfonate solution 3%

According to the above ratio, the mass fraction of MgO in the heavy working layer is 87%, the mass percentage of A1 ₂ 0 ₃ is 8%, and the mass percentage of Zr0 ₂ is 1.5%.

The raw materials used in the lightweight insulation layer and the mass percentage are: magnesium calcium hollow sphere 40%, 325 mesh spinel micropowder 60%, plus yellow dextrin 8%, the magnesium calcium hollow sphere used in the mass percentage of MgO The content is 0.1%, and the mass percentage of CaO is 99.9%.

(1) Ingredients:

Example 33: Magnesium spinel zirconium structure heat insulation integrated composite brick

The heavy working layer adopts MS98A sintered magnesia, HMAS-75 sintered magnesia-alumina spinel micropowder and monoclinic zirconium powder as raw materials. The particle gradation and its mass percentage are:

l~5mm sintered magnesia 40% Not more than 1mm sintered magnesia

325 mesh sintered magnesium powder

325 mesh sintered spinel powder

325 mesh single oblique zirconium powder

Additional binder lignosulfonate solution

The mass fraction of MgO in the heavy working layer obtained according to the above ratio was 84%, the mass percentage of A1 ₂ 0 ₃ was 7.5%, and the mass percentage of Zr0 ₂ was 1.3%.

The raw materials used in the lightweight insulation layer and the mass percentage are: magnesium magnesium hollow sphere 45%, 325 mesh spinel micro powder 55 %, plus yellow dextrin 8%, the magnesium calcium hollow sphere used in the mass percentage of MgO The content is 50%, and the mass percentage of CaO is 50%.

(1) Ingredients:

Heavy working layer: firstly mix the sintered magnesia with more than lmm and not more than lmm and the binder, then add the powder of no more than 325, stir for 20 minutes and set aside.

High-strength lightweight insulation layer: Mix the magnesium-calcium hollow sphere lightweight aggregate in proportion with the binder, and then add 325 mesh spinel powder in proportion to the mixture for 20 minutes.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate. The length ratio of the dense working layer and the high-strength lightweight heat-insulating layer is 2:1, the partition is taken out after the feeding, and the vibration is used. Press molding.

(3) Firing: After the molded body is taken out and dried at 150 ° C, the kiln is fired at 1700 ° C for 4 hours.

Example 34: Corundum spinel structure heat insulation integrated composite brick

The raw materials used in the heavy working layer and their mass percentage are:

l~3mm white corundum

Not more than lmm white corundum

Not more than lmm spinel

Not more than 325 mesh spinel

Adding a binder yellow dextrin solution

According to the above ratio, the mass percentage of the obtained heavy working layer component is 10% by mass, 10% by weight of A1 ₂ 0 ₃ %, and the rest is other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer and the mass percentage are: magnesium aluminum hollow sphere 70%, no more than 325 mesh ct-Al ₂ 0 ₃ micropowder 20%, no more than 325 mesh magnesia powder 10%, plus combination The yellow dextrin solution is 10%, and the mass percentage of the magnesium-aluminum hollow sphere used is 70% for A1 ₂ 0 ₃ and 30% for MgO.

The corundum spinel structure heat insulation integrated composite brick manufacturing method comprises the following steps:

(1) Ingredients:

Heavy working layer: Firstly mix the aggregate granules with the binder and add no more than 325 powder. Stir for 15 minutes and use.

High-strength lightweight insulation: Mix the lightweight aggregates in proportion with the binder, then add the powders in proportion and stir for 15 minutes.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate. The length ratio of the heavy working layer and the high-strength lightweight heat-insulating layer is 2:1, and the partition is taken out after the feeding, Vibratory press is pressure molded.

(3) Firing: After the molded body is taken out and dried at 80 ° C, the kiln is fired at 1650 ° C for 8 hours.

Example 35: Corundum spinel structure heat insulation integrated composite brick The raw materials used in the heavy working layer and their mass percentage are:

l~3mm spinel 45%

Not more than lmm white corundum 4%

Not more than lmm spinel 26%

Not more than 325 mesh white corundum 25%

Plus binder pulp waste 3%

According to the above ratio, the mass percentage of the obtained heavy working layer component is 20% by mass, 20% by A1 ₂ 0 ₃ %, and the rest is other components introduced by the raw material.

The raw materials used in the lightweight insulation layer and its mass percentage are: magnesium aluminum hollow sphere 35%, corundum hollow sphere 35%, no more than 325 mesh ct-Al ₂ 0 ₃ micropowder 20%, no more than 325 mesh magnesia 10% flour, pulp waste solution plus 10% binding agent, magnesium aluminum hollow sphere component used in the mass percentage of A1 ₂ 0 ₃ is 99.9%, MgO 0.1% corundum hollow sphere component used in the mass percentage of A1 ₂ 0 ₃ is 94%.

(1) Ingredients:

Heavy working layer: Firstly mix the aggregate granules with the binder and add no more than 325 powder. Stir for 10 minutes and use.

High-strength lightweight insulation: Mix the lightweight aggregates in proportion with the binder, then add the powders in proportion and stir for 10 minutes.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 1: 2, and the partition is taken out after the feeding, Vibratory press is pressure molded.

Example 36: Corundum spinel structure heat insulation integrated composite brick

l~3mm white corundum 40%

Not more than lmm white corundum 15%

Not more than lmm white corundum 10%

Not more than 325 mesh white corundum 23%

Not more than 325 mesh magnesia 12%

Plus binder lignosulfonate solution 3%

According to the above ratio, the mass percentage of the obtained heavy working layer component is 11% by mass, 11% by mass of A ₁₂ 0 ₃ %, and the rest are other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer and its mass percentage are: 50% alumina hollow sphere, 20% chromium chrome hollow sphere, no more than 325 mesh ct-Al ₂ 0 ₃ micropowder 20%, no more than 325 mesh oxidation Magnesium powder 10%, plus binder lignosulfonate solution 10%, the content of the mass percentage of A1 ₂ 0 ₃ in the alumina hollow sphere used is 99.9%, and the content of the component in the chrome corundum hollow sphere used is A1 ₂ 0 ₃ It is 99.9% and Cr ₂ 0 ₃ is 0.1%.

(1) Ingredients:

Heavy working layer: Firstly mix the aggregate granules with the binder and add no more than 325 powder. Stir for 25 minutes and use.

High-strength lightweight insulation: Mix the lightweight aggregate in proportion with the binder, then add the powder in proportion and stir for 25 minutes. use.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 1:1, and the partition is taken out after the feeding, The friction press is press-formed.

Example 37: Corundum spinel structure heat insulation integrated composite brick

3~5mm white corundum 12%

l~3mm white corundum 23%

Not more than lmm white corundum 25%

Not more than lmm white corundum 10%

Not more than 325 mesh white corundum 10%

Not more than 325 mesh spinel 20%

Plus binder yellow dextrin solution 3%

According to the above ratio, the mass percentage of the obtained heavy working layer component is 14% by mass, and A1 ₂ 0 ₃ % is 85%, and the rest is other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer and their mass percentage are: magnesium aluminum hollow sphere 35%, chrome corundum hollow sphere 20%, no more than 325 mesh ct-Al ₂ 0 ₃ micropowder 35%, no more than 325 mesh oxidation 10% of magnesium powder, binding agent plus a 10% solution of yellow dextrin, magnesium aluminum hollow spheres used in the mass percentage of component A1 ₂ 0 ₃ was 0.1%, MgO 99.9%, chromium corundum hollow sphere mass percentage of component A1 ₂ 0 ₃ is 70%, and Cr ₂ 0 ₃ is 30%.

(1) Ingredients:

Heavy working layer: Firstly mix the aggregate granules with the binder and add no more than 325 powder for 20 minutes. High-strength lightweight insulation: Mix the lightweight aggregates in proportion with the binder, then add the powders in proportion and stir for 20 minutes.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate. The length ratio of the heavy working layer and the high-strength lightweight heat-insulating layer is 2:1, and the partition is taken out after the feeding, The hydraulic press is press molded.

Example 38: Corundum spinel structure heat insulation integrated composite brick

3~5mm spinel 18%

l~3mm white corundum 22%

Not more than lmm spinel 16%

Not more than lmm white corundum 14%

Not more than 325 mesh white corundum 6%

Not more than 325 mesh spinel 24%

Plus binder methylcellulose solution 3%

According to the above ratio, the mass percentage of the obtained heavy working layer component is 16% by mass, and A1 ₂ 0 ₃ % is 80%, and the rest is other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer and the mass percentage are: zirconia corundum hollow sphere 55 %, no more than 325 mesh ct-Al ₂ 0 ₃ micropowder 35%, no more than 325 mesh magnesia powder 10%, plus combination 10% solution of methylcellulose agent, the mass percentage of the hollow sphere corundum A1 ₂ 0 ₃ content of 99.9%, Zr0 ₂ was 0.1%. The corundum spinel structure heat insulation integrated composite brick manufacturing method comprises the following steps:

(1) Ingredients:

Heavy working layer: Firstly mix the aggregate granules with the binder and add the powder of no more than 325. Stir for 30 minutes. High-strength lightweight insulation: Mix the lightweight aggregate in proportion with the binder, then add the powder in proportion for 30 minutes.

Example 39: Corundum spinel structure heat insulation integrated composite brick

3~5mm spinel 18%

l~3mm white corundum 22%

No more than 1mm spinel 16%

Not more than 1mm white corundum 14%

Not more than 325 mesh white corundum 6%

Not more than 325 mesh spinel 24% plus binder methylcellulose solution 3% According to the above ratio, the mass percentage of the obtained heavy working layer component is MgO%16%, A1 ₂ 0 ₃ % is 80%, the rest Other ingredients introduced as raw materials.

The raw materials used in the lightweight insulation layer and the mass percentage are: 25% zirconium corundum hollow sphere, 30% corundum hollow sphere, no more than 325 mesh ct-Al ₂ 0 ₃ micropowder 35%, no more than 325 mesh magnesia Powder 10%, plus 10% methylcellulose solution of binder, the content of the mass percentage of AZ ₂ 0 ₃ in the zirconium corundum hollow sphere used is 90%, Zr0 ₂ is 10%, the mass percentage of the component in the corundum hollow sphere used. A1 ₂ 0 ₃ is 95%.

(1) Ingredients:

Heavy working layer: Firstly mix the aggregate granules with the binder and add no more than 325 powder for 10 minutes. High-strength lightweight insulation: Mix the lightweight aggregates in proportion with the binder, then add the powder in proportion to the mixture for 10 minutes.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 5:1, and the partition is taken out after the feeding, The hydraulic press is press molded.

Example 40: Corundum structure heat insulation integrated composite brick

l~3mm high alumina bauxite 45%

Less than 1mm fused corundum 25%

Less than 1mm high alumina bauxite 3.6%

Not more than 325 mesh high alumina bauxite 26.4%

Plus binder lignosulfonate solution 3%

Among them, high alumina bauxite is special grade A.

According to the above ratio, the mass percentage of the obtained heavy working layer component A1 ₂ 0 ₃ % is 90%, and the rest are other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer and the mass percentage are: 25% alumina hollow sphere, 30% corundum hollow sphere, 45% high alumina bauxite not more than 325 mesh, and 6% binder liquid waste. Among them, the A1 ₂ 0 ₃ component in the corundum hollow sphere The percentage by weight is 93%, and the mass percentage of the A1 ₂ 0 ₃ component in the alumina hollow sphere is 98%.

The corundum structure heat insulation integrated composite brick manufacturing method comprises the following steps:

(1) Ingredients:

High-strength lightweight insulation layer: Mix the alumina hollow spheres, corundum hollow spheres lightweight aggregates in proportion and binder, then add 325 mesh powders in proportion and stir for 10 minutes.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 5:2, and the partition is taken out after the feeding, Vibratory press press molding.

Example 41: Corundum structure heat insulation integrated composite brick

l~3mm high alumina bauxite

l~3mm fused corundum

Less than 1mm fused corundum

Less than 1mm high alumina bauxite

Not more than 325 mesh fused corundum

Additive binder pulp waste

Among them, high alumina bauxite is special grade A.

According to the above ratio, the mass percentage of the obtained heavy working layer component A1 ₂ 0 ₃ % was 98%, and the rest were other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer and the mass percentage are: 70% of the magnesium-aluminum hollow sphere, 30% of the high-alumina alumina of not more than 325 mesh, and 9% of the methylcellulose solution of the binder, and the magnesium-aluminum hollow used. The mass percentage of the A1 ₂ 0 ₃ component in the sphere is 99.9%, and the mass percentage of MgO is 0.1%.

(1) Ingredients:

Heavy working layer: Firstly mix the aggregate granules with the binder and mix them evenly in the ball mill, then add 325 mesh powder, stir for 30 minutes and set aside;

High-strength lightweight insulation layer: Mix the magnesium-aluminum hollow sphere lightweight aggregate in proportion with the binder, then add the powder of not more than 325 mesh in proportion and stir for 30 minutes.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 3:2, and the partition is taken out after the feeding, Vibratory press press molding.

Example 42: Corundum structure heat insulation integrated composite brick

l~3mm high alumina bauxite

Less than 1mm fused corundum

Not more than 325 mesh fused corundum

Not more than 325 mesh high alumina bauxite

Additive binder pulp waste

Among them, high alumina bauxite is special grade A.

According to the above ratio, the mass of the obtained heavy working layer component was: the percentage of A1 ₂ 0 ₃ % was 93%, and the rest were other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer and the mass percentage are: 60% zirconium corundum hollow sphere, 40% high alumina bauxite not more than 325 mesh, plus 10% binder pulp waste liquid, wherein the zirconium corundum hollow sphere is used. The medium component mass percentage A1 ₂ 0 ₃ is 90%, and Zr0 ₂ is 10%.

(1) Ingredients:

Heavy working layer: Firstly mix the aggregate granules with the binder and mix them evenly in the ball mill, then add 325 mesh powder, stir for 20 minutes and set aside;

High-strength lightweight insulation: Mix the zirconium corundum hollow sphere lightweight aggregate in proportion with the binder, then add 325 mesh powder in proportion and stir for 20 minutes.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 1:1, and the partition is taken out after the feeding, Friction press press molding.

Example 43: Corundum structure heat insulation integrated composite brick

l~3mm high alumina bauxite 15%

l~3mm fused corundum 25%

Less than 1mm fused corundum 25%

Not more than 325 mesh high alumina bauxite 35%

Plus binder yellow dextrin solution 5%

Among them, high alumina bauxite is special grade A.

According to the above ratio, the mass percentage of the obtained heavy working layer component is 95% by J A1 ₂ 0 ₃ %, and the rest is other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer and the mass percentage are: chrome corundum hollow sphere 65%, no more than 325 mesh high alumina bauxite 35%, plus binder phosphoric acid solution 8%, which is used in the chrome corundum hollow sphere The component mass percentage A1 ₂ 0 ₃ is 70%, and Cr ₂ 0 ₃ is 30%.

(1) Ingredients:

Heavy working layer: Firstly mix the aggregate granules with the binder and mix them evenly in the ball mill, then add no more than 325 mesh powder, stir for 10 minutes and then set aside;

High-strength lightweight insulation layer: Mix the chrome corundum hollow sphere lightweight aggregate in proportion with the binder, then add the powder of no more than 325 mesh in proportion and stir for 10 minutes.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 5:2, and the partition is taken out after the feeding, Hydraulic press press molding.

(3) Firing: After the molded body is taken out and dried at 110 ° C, the kiln is fired at 1750 ° C for 5 hours.

Example 44: Corundum - mullite structure heat insulation integrated composite brick

l~3mm mullite 45% Less than 1mm mullite 25%

Not more than 325 mesh mullite 30%

Plus bonding agent aluminum glue 3%

Among them, the mullite brand is SM-72.

According to the above ratio, the mass fraction of the obtained heavy working layer is A1 ₂ 0 ₃ of 45%, Si0 ₂ is 50%, and the rest are other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer and the mass percentage are: alumina hollow sphere 35%, zirconium corundum hollow sphere 20%, no more than 325 mesh mullite powder 45%, plus binder silica gel 10%, oxidation used mass percentage of aluminum hollow sphere component A1 ₂ 0 ₃ of 99%, the mass percentage of corundum hollow sphere component A1 ₂ 0 ₃ is 99.9%, Zr0 ₂ was 0.1%.

The corundum mullite structure heat insulation integrated composite brick manufacturing method comprises the following steps:

(1) Ingredients:

Heavy working layer: firstly mix the aggregate granules with the binder and mix them evenly in the ball mill, then add the powder of no more than 325 mesh, stir for 30 minutes and then set aside;

High-strength lightweight insulation layer: Mix the hollow ball lightweight aggregate in proportion with the binder, then add the powder of no more than 325 mesh in proportion and stir for 30 minutes.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 5:1, and the partition is taken out after the feeding, Hydraulic press press molding.

(3) Firing: After the molded body is taken out and dried at 80 ° C, the kiln is fired at 1600 ° C for 8 hours.

Example 45: Corundum - mullite structure heat insulation integrated composite brick

l~3mm fused corundum 35%

Less than 1mm fused corundum 35%

Not more than 325 mesh fused corundum 17.1%

Not more than 325 mesh mullite 12.9%

Plus bonding agent silica gel 3%

Among them, the mullite grade is SM-72, and the high alumina bauxite is special grade A.

According to the above ratio, the mass fraction of the obtained heavy working layer is A1 ₂ 0 ₃ of 75%, Si0 ₂ is 20%, and the rest are other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer and the mass percentage are: 65% of the corundum hollow sphere, 35% of the high alumina bauxite not more than 325 mesh, and 10% of the binder aluminum dihydrogen phosphate solution, used in the corundum hollow sphere The component mass percentage A1 ₂ 0 ₃ is 94%.

(1) Ingredients:

Heavy working layer: Firstly mix the aggregate granules with the binder and mix them evenly in the ball mill, then add no more than 325 mesh powder, stir for 13 minutes and set aside;

High-strength lightweight insulation: Mix the hollow ball lightweight aggregate in proportion with the binder, then add it to the high-alumina mixture for 10 minutes.

(3) Firing: After the molded body is taken out and dried at 150 ° C, the kiln is fired at 1750 ° C for 3 hours. Example 46: Corundum-mullite structure heat insulation integrated composite brick The raw materials used in the heavy working layer and their mass percentage are:

l~3mm fused corundum

Less than 1mm fused corundum

Less than lmm mullite

Not more than 325 mesh mullite

Adding a binder yellow dextrin solution

Among them, the mullite grade is SM-72 and the coke jewel grade is YNS36.

According to the above ratio, the mass fraction A1 ₂ 0 ₃ of the obtained heavy working layer component is 60%, and the Si0 ₂ is 35%, and the rest are other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer and the mass percentage are: 70% of the chrome corundum hollow sphere, 30% of the 325 mesh high alumina bauxite, and 8% of the binder phosphoric acid solution, in the chrome corundum hollow sphere The component mass percentage A1 ₂ 0 ₃ was 99.9%, and the Cr ₂ 0 ₃ was 0.1%.

The corundum-mullite structure heat insulation integrated composite brick manufacturing method comprises the following steps:

(1) Ingredients:

Heavy working layer: Firstly mix the aggregate granules with the binder and mix them evenly in the ball mill, then add no more than 325 mesh powder, stir for 20 minutes and set aside;

High-strength lightweight insulation: Mix the chrome corundum hollow ball lightweight aggregate in proportion with the binder, then add it in high alumina bauxite for 20 minutes.

(3) Firing: After the molded body is taken out and dried at 110 ° C, the kiln is fired at 1700 ° C for 4 hours.

Example 47: Corundum - mullite structure heat insulation integrated composite brick

l~3mm mullite 40%

Less than lmm mullite 25%

No more than 325 mesh mullite 10%

Not more than 325 mesh fused corundum 25%

Plus binder pulp waste 3%

Among them, the mullite grade is SM-72 and the coke jewel grade is YNS36.

According to the above ratio, the mass fraction of the obtained heavy working layer is A1 ₂ 0 ₃ of 65%, Si0 ₂ is 30%, and the rest are other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer and the mass percentage are: 70% of the chrome corundum hollow sphere, 30% of the 325 mesh high alumina bauxite, and 8% of the binder phosphoric acid solution, in the chrome corundum hollow sphere The component mass percentage A1 ₂ 0 ₃ was 80.9%, and Cr ₂ 0 ₃ was 18.1%.

(1) Ingredients:

High-strength lightweight insulation layer: Mix the chrome corundum hollow sphere lightweight aggregate in proportion and binder, then add high-alumina in proportion to stir for 30 minutes. (2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 5:1, and the partition is taken out after the feeding, Hydraulic press press molding.

(3) Firing: After the molded body is taken out and dried at 80 ° C, the kiln is fired at 1750 ° C for 5 hours. Example 48: Zirconium corundum structure thermal insulation integrated composite brick

l~3mm fused corundum 45%

Less than 1mm fused corundum 25%

Not more than 325 mesh fused corundum 4.3%

Not more than 325 gemstones 10.9%

Not more than 325 mesh monoclinic zirconia 14.8%

Plus binder lignosulfonate solution 3%

Among them, the Jiao Gem brand is YNS36.

According to the above ratio, the mass fraction A1 ₂ 0 ₃ of the obtained heavy working layer component is 80%, Zr0 ₂ is 15%, and the rest are other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer and the mass percentage are: alumina hollow sphere 55 %, no more than 325 mesh fused corundum 45%, plus binder bisphosphonate solution 8%, alumina hollow spheres used The mass percentage of the medium component is 99%.

The manufacturing method of the zirconium corundum structure heat insulation integrated composite brick comprises the following steps:

(1) Ingredients:

Heavy working layer: Firstly mix the aggregate granules with the binder and mix them evenly in the ball mill, then add no more than 325 mesh powder and stir for 30 minutes;

Example 49: Zirconium corundum structure heat insulation integrated composite brick

l~3mm fused corundum 35%

Less than 1mm fused corundum 32.5%

Less than 1mm coke powder 2.5%

Not more than 325 mesh mullite 25.2%

Not more than 325 mesh monoclinic zirconia 4.8%

Add binder pulp waste 4%

Among them, the Jiao Gem brand is YNS36.

According to the above ratio, the mass fraction A1 ₂ 0 ₃ of the obtained heavy working layer component is 82%, Zr0 ₂ is 5%, and the rest are other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer and the mass percentage are: magnesium aluminum hollow ball 30%, corundum hollow ball 40%, not more than 325 mesh fused corundum 30%, plus binder methylcellulose solution 9 %, magnesium aluminum hollow spheres used in the mass percentage of component A1 ₂ 0 ₃ is 99.9%, MgO 0.1%, corundum hollow sphere component mass percentage of A1 ₂ 0 ₃ was 94%.

The manufacturing method of the zirconium corundum structure heat insulation integrated composite brick comprises the following steps: (1) Ingredients:

Heavy working layer: Firstly mix the aggregate particles with the binder and mix them evenly in the ball mill, then add no more than

325 mesh powder, stirred for 20 minutes;

High-strength lightweight insulation layer: Mix the hollow sphere lightweight aggregate in proportion with the binder, then add the powder of no more than 325 mesh in proportion and stir for 20 minutes.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 1: 2, and the partition is taken out after the feeding, Friction press press molding.

(3) Firing: After the molded body is taken out and dried at 110 ° C, the kiln is fired at 1700 ° C for 3 hours.

Example 50: Zirconium corundum structure heat insulation integrated composite brick

l~3mm fused corundum 40%

Less than 1mm fused corundum 35%

Not more than 325 mesh fused corundum 15%

Not more than 325 mesh monoclinic zirconia 10%

Plus binder yellow dextrin solution 4%

According to the above ratio, the mass percentage of the obtained heavy working layer component A1 ₂ 0 ₃ is 90%, and Zr0 ₂ is 10%.

The raw materials used in the lightweight insulation layer and the mass percentage are: chrome corundum hollow sphere 45%, zirconium corundum hollow sphere 20%, no more than 325 mesh fused corundum 35%, plus binder aluminum dihydrogen phosphate solution 8 %, the chrome corundum hollow sphere used has a component mass percentage of A1 ₂ 0 ₃ of 70%, Cr ₂ 0 ₃ of 30%, and the zirconium corundum hollow sphere used has a component mass percentage of A1 ₂ 0 ₃ of 90%, Zr0 ₂ It is 10%.

(1) Ingredients:

325 mesh powder, stirred for 20 minutes;

(3) Firing: After the molded body is taken out and dried at 80 ° C, the kiln is fired at 1750 ° C for 3 hours.

Example 51: Zirconium corundum structure heat insulation integrated composite brick

l~3mm fused corundum 40%

Less than 1mm fused corundum 25%

Not more than 325 mesh fused corundum 23%

Not more than 325 mesh monoclinic zirconia 12%

Plus bonding agent aluminum glue 5%

Ratio as described above, the resulting layer of the heavy component working mass percentage of A1 ₂ 0 ₃ is 88%, Zr0 ₂ is 12%.

The raw materials used in the lightweight insulation layer and the mass percentage are: 5% of chrome corundum hollow spheres, 45% of 325 mesh high alumina bauxite, 6% of adhesive aluminum quilt, and chrome corundum hollow spheres used. The A1 ₂ 0 ₃ of the component mass percentage is 99.9%.

Cr ₂ 0 ₃ is 0.1%. The manufacturing method of the zirconium corundum structure heat insulation integrated composite brick comprises the following steps:

(1) Ingredients:

325 mesh powder, stirred for 30 minutes;

(3) Firing: After the molded body is taken out and dried at 150 ° C, the kiln is fired at 1800 ° C for 4 hours. Example 52: Zirconium corundum structure heat insulation integrated composite brick

3~5mm fused corundum 16%

l~3mm fused corundum 24%

Less than 1mm fused corundum 25%

325 mesh monoclinic zirconia 31%

325 mesh clay 4%

Plus binder pulp waste 5%

According to the above ratio, the mass fraction A1 ₂ 0 ₃ of the obtained heavy working layer component is 60%, Zr0 ₂ is 30%, and the rest are other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer and the mass percentage thereof are: zirconium corundum hollow spheres 55 % not more than 325 mesh high alumina bauxite 45%, plus binder aluminum sulfate solution 10 %, used in zirconium corundum hollow spheres The component mass percentage of A1 ₂ 0 ₃ was 99.9%, and Zr0 ₂ was 0.1%.

(1) Ingredients:

Heavy working layer: Firstly mix the aggregate granules with the binder and mix them evenly in the ball mill, then add 325 mesh powder and stir for 10 minutes;

High-strength lightweight insulation: Mix the hollow ball lightweight aggregate in proportion with the binder, then add 325 mesh powder in proportion and stir for 10 minutes.

(3) Firing: After the molded body is taken out and dried at 150 ° C, the kiln is fired at 1700 ° C for 4 hours. Example 52: Zirconium corundum structure heat insulation integrated composite brick

3~5mm plate corundum 16%

l~3mm plate corundum 24%

Less than 1mm plate corundum 30%

Not more than 325 mesh monoclinic zirconia 25%

Not more than 325 mesh clay 5%

Plus binder pulp waste 5%

According to the above ratio, the mass percentage of the obtained heavy working layer component is A1 ₂ 0 ₃ is 72%, Zr0 ₂ is 24%, and the rest is Other ingredients introduced by the raw materials.

The raw materials used in the lightweight insulation layer and the mass percentage are: zirconium corundum hollow sphere 30%, magnesium aluminum hollow sphere 25%, no more than 325 mesh high alumina bauxite 45%, plus bonding agent aluminum sulfate solution 10% , the mass percentage of the used hollow sphere AZS A1 ₂ 0 ₃ content of 95%, Zr0 ₂ was 5%, the hollow spheres employed magnesium aluminum mass percentage of component A1 ₂ 0 ₃ is 70%, MgO 30 %.

(1) Ingredients:

(3) Firing: After the formed body is taken out and dried at 150 ° C, the kiln is fired at 1650 ° C for 4 hours. Example 53: Chrome corundum structure heat insulation integrated composite brick

3~5mm fused corundum 15%

l~3mm fused corundum 30%

Less than 1mm fused corundum 25%

Not more than 325 mesh fused corundum 4.3%

Not more than 325 mesh chrome oxide powder 14.8%

Not more than 325 gemstones 10.9%

Plus binder lignosulfonate solution 3%

Among them, the Jiao Gem brand is YNS36.

According to the above ratio, the mass fraction A1 ₂ 0 ₃ of the obtained heavy working layer component is 80%, and Cr ₂ 0 ₃ is 15%, and the rest are other components introduced by the raw material.

The raw materials used in the lightweight insulation layer and the mass percentage are: alumina hollow sphere 55 %, no more than 325 mesh fused corundum 45%, plus binder phosphoric acid solution 8%, the mass of the constituents of the alumina hollow sphere used The percentage is 99%.

The chrome corundum structure heat insulation integrated composite brick manufacturing method comprises the following steps:

(1) Ingredients:

Heavy working layer: Firstly mix the aggregate granules with the binder and mix them evenly in the ball mill, then add no more than 325 mesh powder and stir for 10 minutes;

High-strength lightweight insulation layer: Mix the hollow sphere lightweight aggregate in proportion with the binder, then add the powder of no more than 325 mesh in proportion and stir for 10 minutes.

(3) Firing: After the molded body is taken out and dried at 80 ° C, the kiln is fired at 1650 ° C for 8 hours. Example 54: Chromium corundum structure heat insulation integrated composite brick

l~3mm fused corundum 35% Less than 1mm fused corundum

Not more than 325 mesh fused corundum

Not more than 325 mesh chrome oxide powder

Not more than 325 mesh gemstones

Additive binder pulp waste

Among them, the Jiao Gem brand is YNS36.

According to the above ratio, the mass fraction A1 ₂ 0 ₃ of the obtained heavy working layer component is 90%, Cr ₂ 0 ₃ is 5%, and the rest are other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer and the mass percentage are: magnesium aluminum hollow ball 30%, corundum hollow ball 40%, not more than 325 mesh fused corundum 30%, plus binder methyl cellulose solution 9 %, magnesium aluminum hollow spheres used in the mass percentage of component A1 ₂ 0 ₃ is 99.9%, MgO 0.1%, corundum hollow sphere component mass percentage of A1 ₂ 0 ₃ was 94%.

(1) Ingredients:

Heavy working layer: Firstly mix the aggregate granules with the binder and mix them evenly in the ball mill, then add no more than 325 mesh powder and stir for 15 minutes;

High-strength lightweight insulation layer: Mix the hollow ball lightweight aggregate in proportion with the binder, then add the powder of no more than 325 mesh in proportion and stir for 15 minutes.

(3) Firing: After the molded body is taken out and dried at 120 ° C, the kiln is fired at 1700 ° C for 5 hours.

Example 55: Chrome corundum structure heat insulation integrated composite brick

3~5mm fused corundum 20%

l~3mm fused corundum 20%

Less than 1mm fused corundum 35%

Not more than 325 mesh fused corundum 15%

Not more than 325 mesh chrome oxide powder 10%

Plus combined with yellow dextrin solution 3%

According to the above ratio, the mass fraction A1 ₂ 0 ₃ of the obtained heavy working layer component is 88%, and Cr ₂ 0 ₃ is 10%, and the rest are other components introduced by the raw materials.

(1) Ingredients:

Heavy working layer: firstly mix the aggregate granules with the binder and mix them evenly in the ball mill, then add no more than 325 mesh powder and stir for 25 minutes;

High-strength lightweight insulation: Mix the lightweight aggregates in proportion with the binder, then add the powder of no more than 325 mesh in proportion and stir for 25 minutes. (2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 1:1, and the partition is taken out after the feeding, Hydraulic press press molding.

(3) Firing: After the formed body is taken out and dried at 110 ° C, the kiln is fired at 1750 ° C for 4 hours. Example 56: Chrome corundum structure heat insulation integrated composite brick

3~5mm fused corundum 10%

l~3mm fused corundum 30%

Less than 1mm fused corundum 25%

Not more than 325 mesh clay 4%

Not more than 325 mesh chrome oxide powder 31%

Adding bonding agent silica gel 5%

According to the above ratio, the mass fraction A1 ₂ 0 ₃ of the obtained heavy working layer component is 60%, and Cr ₂ 0 ₃ is 30%, and the rest are other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer and the mass percentage are: chrome corundum hollow sphere 55 %, no more than 325 mesh high alumina bauxite 45%, plus binder aluminum 6%, used in the chrome corundum hollow sphere The compositional mass percentage of A1 ₂ 0 ₃ was 99.9%, and Cr ₂ 0 ₃ was 0.1%.

(1) Ingredients:

High-strength lightweight insulation layer: Mix the hollow ball lightweight aggregate in proportion with the binder, then add the powder of no more than 325 mesh in proportion and stir for 25 minutes.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 5:2, and the partition is taken out after the feeding, The vibrating machine is press-formed.

(3) Firing: After the molded body is taken out and dried at 100 ° C, the kiln is fired at 1800 ° C for 3 hours. Example 57: Chrome corundum structure heat insulation integrated composite brick

3~5mm plate corundum 5%

l~3mm plate corundum 30%

Less than 1mm plate corundum 30%

Not more than 325 mesh slab corundum 31%

Not more than 325 mesh chrome oxide powder 4%

Plus binder yellow dextrin solution 5%

According to the above ratio, the mass fraction A1 ₂ 0 ₃ of the obtained heavy working layer component is 94%, Cr ₂ 0 ₃ is 5%, and the rest are other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer and the mass percentage are: zirconium corundum hollow sphere 30%, magnesium aluminum hollow sphere 25%, no more than 325 mesh high alumina bauxite 45%, plus bonding agent aluminum sulfate solution 10% , the mass percentage of the used hollow sphere AZS A1 ₂ 0 ₃ content of 99.9%, Zr0 ₂ 0.1% magnesium aluminum hollow spheres used in the mass percentage of component A1 ₂ 0 ₃ 0.1% of MgO 99.9 %.

The chrome corundum structure heat insulation integrated composite brick manufacturing method comprises the following steps: (1) Ingredients:

325 mesh powder, stirred for 30 minutes;

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 5:1, and the partition is taken out after the feeding, The vibrating machine is press-formed.

(3) Firing: After the molded body is taken out and dried at 150 ° C, the kiln is fired at 1800 ° C for 6 hours. Example 58: Chrome corundum structure heat insulation integrated composite brick

3~5mm plate corundum 12%

l~3mm plate corundum 28%

Less than 1mm plate corundum 30%

Not more than 325 mesh slab corundum 11%

Not more than 325 mesh chrome oxide powder 19%

Plus binder yellow dextrin solution 5%

According to the above ratio, the mass fraction A1 ₂ 0 ₃ of the obtained heavy working layer component is 89%, and Cr ₂ 0 ₃ is 18%, and the rest are other components introduced by the raw materials.

(1) Ingredients:

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate. The length ratio of the heavy working layer and the high-strength lightweight heat-insulating layer is 2:1, and the partition is taken out after the feeding, The vibrating machine is press-formed.

(3) Firing: After the molded body is taken out and dried at 100 ° C, the kiln is fired at 1700 ° C for 6 hours. Example 59: mullite structure heat insulation integrated composite brick

l~3mm sintered mullite 38%

Sintered mullite no more than 1mm 35%

325 mesh Suzhou mud 5%

Α-Α1 ₂ 0 ₃ fine powder 17%

Andalusite 5%

Plus bonding agent aluminum glue solution 5%

According to the above ratio, the mass percentage of the heavy working layer Α1 ₂ 0 ₃ is 71.3%, and the mass percentage of SiO ₂ is 25.0%, the rest are other ingredients introduced by the raw materials.

The raw materials used in the lightweight insulation layer and its mass percentage are: alumina hollow sphere 26%, magnesium aluminum hollow sphere 29%, 325 mesh high aluminum micro powder 41%, 325 mesh Suzhou mud 4%, plus binder sulfuric acid The aluminum solution was 8%; the mass percentage of A1 ₂ 0 ₃ in the alumina hollow sphere used was 98.7%, and the Mg-alumina hollow sphere was Mg099.9%, Α1 ₂ Ο ₃ 0.1%.

The preparation process includes the following steps:

(1) Ingredients:

The batching process of the heavy working layer is to first mix the 325 mesh Suzhou mud, ct-Al ₂ 0 ₃ micropowder and andalusite, and then mix them evenly in the ball mill, then add the mixture after the other aggregate particles and the binder are evenly mixed. Good powder, stir for 23 minutes and set aside;

The light insulation layer is compounded by mixing the alumina hollow spheres and the magnesium-aluminum hollow spheres with the binder in proportion, then adding the high-alumina fine powder in proportion, and stirring the 325 mesh Suzhou mud for 19 minutes.

(2) Forming:

(3) firing:

The formed green body was taken out and dried at 130 ° C, and then the kiln was fired at 1700 ° C for 6 hours.

Example 60: mullite structure heat insulation integrated composite brick

l~3mm sintered mullite 35%

Greater than lmm coke gems 10%

Not more than 1mm sintered mullite 16%

Not more than 1mm gemstone 17%

325 mesh mullite 5%

325 mesh coke powder 4%

325 mesh Suzhou mud 3%

Α-Α1 ₂ 0 ₃ micropowder 10%

Adding binder silica gel solution 4.7%

The resulting ratio of heavy above the mass percentage of the working layer Α1 ₂ 0 ₃ t of 6655..00 %% ,, is the mass percentage of 33.2% of Si0 _2, other components remaining as a raw material introduced.

The raw materials used in the lightweight insulation layer and its mass percentage are: chrome corundum hollow sphere 31%, corundum hollow sphere 39%, ct-Al ₂ 0 ₃ micropowder 17%, coke gemstone 13%, plus binder methyl 9% cellulose solution; hollow spherical corundum used in the mass percentage of A1 _₂₀₃ 94% chromium corundum mass percentage of the hollow sphere _₂₀₃ A1 is 70%, Cr of _₂₀₃ mass percent The content is 30%.

The preparation process includes the following steps:

(1) Ingredients:

The batching process of the heavy working layer is to firstly mix 325 mesh mullite, 325 mesh Suzhou mud, ct-Al ₂ 0 ₃ micropowder and 325 gem gemstones, then mix them evenly in the ball mill, and then in the other aggregate particles and After the binder is uniformly mixed, the mixed powder is added, and stirred for 30 minutes, and then used;

The light insulation layer is compounded by mixing the chrome corundum hollow spheres and the corundum hollow spheres with the binder in proportion, and then adding ct-Al ₂ 0 ₃ micropowder and coke gems in proportion for 14 minutes. (2) Forming:

After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 5:1, the separator is taken out after the feeding, and the pressure is pressed by a friction press. forming.

(3) firing:

After the molded body is taken out and dried at 110 ° C, the kiln is fired at 1650 ° C for 5 hours.

Example 61: mullite structure heat insulation integrated composite brick

3~5mm fused mullite

l~3mm fused mullite

Not more than lmm fused mullite

325 mesh gemstone

Α-Α1 ₂ 0 ₃ fine powder

Suzhou Mud

Additive binder pulp waste

The mass fraction of the heavy working layer A1 ₂ 0 ₃ obtained according to the above ratio was 67.3%, and the mass percentage of Si0 ₂ was 30.0%, and the rest were other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer and the mass percentage are: 31% of chrome corundum hollow spheres, 32% of magnesia-aluminum hollow spheres, 19% of 325 mesh fused mullite, 18% of high-alumina fine powder, plus The binder lignosulfonate solution is 9%; the mass percentage of A1 ₂ 0 ₃ in the chrome corundum hollow sphere used is 99.9%, the mass percentage of Cr ₂ 0 ₃ is 0.1%, and the MgO in the magnesia-aluminum hollow sphere is 0.1. %, A1 ₂ 0 ₃ is 99.9%.

The preparation process includes the following steps:

(1) Ingredients:

The batching process of the heavy working layer is to first mix the coke gemstone, 325 mesh Suzhou mud and ct-Al ₂ 0 ₃ micropowder in a ball mill, and then add the mixed powder after the other aggregate particles and the bonding agent are uniformly mixed. Stir for 27 minutes and set aside;

The light insulation layer is compounded by mixing the chrome corundum hollow spheres and the magnesium aluminum hollow spheres with the binder in proportion, and then adding the fused mullite and the high aluminum micropowder in proportion to the mixture for 18 minutes.

(2) Forming:

After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 2:1, and the separator is taken out after the feeding, and is pressed and formed by a hydraulic press.

(3) firing:

The formed green body was taken out and dried at 100 ° C, and then placed in a kiln at 1600 ° C for 4 hours to be fired.

Example 62: Mullite structure heat insulation integrated composite brick

l~3mm sintered mullite

Not more than 1mm sintered mullite

325 mesh Suzhou mud

Α-Α1 ₂ 0 ₃ fine powder

Andalusite

Adding adhesive aluminum glue solution

According to the above ratio, the mass percentage of the heavy working layer A1 ₂ 0 ₃ is 71.3%, and the mass percentage of Si0 ₂ is 25.0%, the rest are other ingredients introduced by the raw materials.

The raw materials used in the lightweight insulation layer and the mass percentage are: zirconium corundum hollow sphere 55%, 325 mesh high aluminum micropowder 41%, 325 mesh Suzhou mud 4%, plus bonding agent aluminum sulfate solution 8%; In the corundum hollow sphere, the component mass percentage A1 ₂ 0 ₃ is 99.9%, and Zr0 ₂ is 0.1%.

The preparation process includes the following steps:

(1) Ingredients:

The light insulation layer is compounded by mixing the chrome corundum hollow spheres with the binder in proportion, then adding the high-alumina fine powder and the 325 mesh Suzhou mud in proportion for 19 minutes.

(2) Forming:

(3) firing:

Example 63: mullite structure heat insulation integrated composite brick

l~3mm fused mullite

Not more than lmm fused mullite

325 mesh gemstone

Α-Α1 ₂ 0 ₃ fine powder

Suzhou Mud

Additive binder pulp waste

The raw materials used in the lightweight insulation layer and the mass percentage are: zirconium corundum hollow sphere 63%, no more than 325 mesh fused mullite 19%, high aluminum micropowder 18%, plus binder lignosulfonate solution 9%; The zirconium corundum hollow sphere used has a component mass percentage of A1 ₂ 0 ₃ of 90% and Zr0 ₂ of 10%.

The preparation process of the mullite structure heat insulation integrated composite brick comprises the following steps:

(1) Ingredients:

The batching process of the heavy working layer is to first mix the 325 mesh Suzhou mud, ct-Al ₂ 0 ₃ micropowder and coke gemstones in a ball mill, and then mix them evenly after mixing the other aggregate particles and the binder. Good powder, stir for 23 minutes and set aside;

The light insulation layer is compounded by mixing the zirconium corundum hollow spheres with the binder in proportion, then adding high-alumina fine powder and 325 mesh fused mullite in proportion for 19 minutes.

(2) Forming:

(3) firing: After the molded body is taken out and dried at 130 ° C, the kiln is fired at 1650 ° C for 6 hours.

Example 64: Zirconium corundum mullite structure heat insulation integrated composite brick

More than 1mm monoclinic zirconia 3%

More than 1mm mullite 36%

Not more than 1mm fused corundum 3%

Not more than 1mm monoclinic zirconia 2%

Not more than 1mm mullite 27%

325 mesh Suzhou mud 3%

325 mesh mullite 26%

Plus binder aluminum sulphate solution 5%

The resulting ratio of the above-described active layer of heavy mass percentage of A1 ₂ 0 ₃ is 64.4%, the mass percentage of 25.0% Si0 _2, Zr0 ₂ mass percentage of 5.0%, the rest is introduced as a raw material other ingredient.

The raw materials used in the lightweight insulation layer and the mass percentage are: alumina hollow sphere 21%, chrome corundum hollow sphere 34%, high aluminum micro powder 45%, plus binder aluminum sulfate solution 10%; alumina hollow used A1 in the mass percentage of the ball _₂₀₃ is 98.7%, chromium corundum mass percentage of the hollow sphere _₂₀₃ A1 is 84%, Cr content of _₂₀₃ mass percentage is 13%.

The preparation process includes the following steps:

(1) Ingredients:

The batching process of the heavy working layer is to mix and match no more than 325 mesh mullite and Suzhou mud, then mix it evenly in the ball mill, then add the mixed powder after the other aggregate particles and the binder are evenly mixed, and stir. After 30 minutes, the light insulation layer is prepared by mixing the alumina hollow spheres and the chrome corundum hollow spheres with the binder in proportion, and then adding the high aluminum powder in proportion to the mixture for 20 minutes.

(2) Forming:

(3) firing:

Example 65: Zirconium corundum mullite structure heat insulation integrated composite brick

The raw materials used in the heavy working layer and the mass percentage thereof are: A1 ₂ 0 ₃ mass percentage of 42%, Si0 ₂ mass percentage of 14%, Zr0 ₂ mass percentage of 42% of sintered zirconium Corundum mullite.

Sintered corundum mullite sand larger than lmm

Sintered corundum mullite sand not more than lmm

325 mesh sintered corundum mullite powder

Not more than 325 mesh Suzhou mud

Additional binder lignosulfonate solution

The resulting ratio of the above-described active layer of heavy mass percentage of A1 ₂ 0 ₃ is 40.0%, the mass percentage of 23.1% Si0 _2, Zr0 ₂ mass percentage of 13.6%, the rest is introduced as a raw material other ingredient.

The raw materials used in the lightweight insulation layer and its mass percentage are: magnesium aluminum hollow sphere 33%, zirconium corundum hollow sphere 37%, ct-Al ₂ 0 ₃ micro powder 36%, plus binder lignosulfonate solution 7 %; The mass percentage of each component in the zirconium corundum hollow sphere used is Al ₂ 0 ₃ 92%, Zr0 ₂ 7%; the mass percentage of each component in the magnesium aluminum hollow sphere is Mg073%, Al ₂ 0 ₃ 26%. The preparation process includes the following steps:

(1) Ingredients:

The batching process of the heavy working layer is to mix the 325 mesh Suzhou mud and the sintered zirconium corundum mullite powder in proportion, then mix them evenly in the ball mill, and then add the mixed powder after the other aggregate particles and the binder are uniformly mixed. , stir for 30 minutes and set aside;

The light insulation layer is compounded by mixing the magnesium aluminum hollow spheres and the zirconium corundum hollow spheres with the binder in proportion, and then adding ct-Al ₂ 0 ₃ micropowder in proportion for 10 minutes.

(2) Forming:

After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 5:1, and the separator is taken out after the feeding, and is pressed and formed by a hydraulic press.

(3) firing:

The formed green body was taken out and dried at 130 ° C, and then the kiln was fired at 1650 ° C for 3 hours.

Example 66: Zirconium corundum mullite structure heat insulation integrated composite brick

The raw materials used in the heavy working layer and the mass percentage are: A1 ₂ 0 ₃ mass percentage is 63.2%, Si0 ₂ mass percentage is 16.8%, Zr0 ₂ mass percentage is 20% fused Zirconium corundum mullite.

More than lmm fused corundum mullite mullite 39%

Not more than lmm sintered corundum mullite 33%

325 mesh sintered corundum mullite powder 25%

Not more than 325 mesh Suzhou mud 3%

Addition of methyl cellulose solution solution 4%

The resulting ratio of the above-described active layer of heavy mass percentage of A1 ₂ 0 ₃ is 61.3%, the mass percentage of 16.3% Si0 _2, Zr0 ₂ mass percentage was 19.4%, the rest is introduced as a raw material other ingredient.

The raw materials used in the lightweight insulation layer and the mass percentage are: corundum hollow sphere 62%, 325 mesh column red stone 23%, ct-Al ₂ 0 ₃ fine powder 15%, plus binder pulp waste liquid 10%.

The preparation process includes the following steps:

(1) Ingredients:

The batching process of the heavy working layer is to mix the 325 mesh Suzhou mud and the fused zirconium corundum mullite powder in proportion and mix them evenly in the ball mill. Then, after the other aggregate particles and the binder are uniformly mixed, the mixed powder is added. Material, stir for 25 minutes and set aside;

Ingredients for the process of the lightweight insulation layer corundum hollow sphere with a uniform binding agent is mixed at a ratio, then, to add a column Hongshibao and ct-Al ₂ 0 ₃ powder was stirred for 20 minutes to spare.

(2) Forming:

After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 3:2, and the separator is taken out after the feeding, and the vibration is pressed and formed.

(3) firing:

After the molded body is taken out and dried at 120 ° C, the kiln is fired at 1650 ° C for 3 hours.

Example 67: Zirconium corundum mullite structure heat insulation integrated composite brick

The raw materials used in the heavy working layer and its mass percentage are: A1 ₂ 0 ₃ mass percentage of 68%, Si0 ₂ mass percentage of 21%, Zr0 ₂ mass percentage of 11% of bauxite Zirconium-based corundum mullite.

More than lmm 矾基刚刚莫 37 37 37% Not more than lmm sintered corundum mullite 31%

325 mesh earth-based corundum mullite powder 29%

Not more than 325 mesh Suzhou mud 3%

Addition of methyl cellulose solution solution 4%

The resulting ratio of the above-described active layer of heavy mass percentage of A1 ₂ 0 ₃ is 66.0%, the mass percentage of 20.4% Si0 _2, Zr0 ₂ mass percentage of 10.7%, the rest is introduced as a raw material other ingredient.

The raw materials used in the lightweight insulation layer and its mass percentage are: magnesia hollow sphere 21%, magnesium aluminum hollow sphere 43%, high aluminum fine powder 26% and andalusite 10%, plus lignosulfonate solution 6% The MgO in the magnesia hollow sphere used was 95%, the Mg-alumina hollow sphere was Mg073%, and the Al ₂ 0 ₃ 26%.

The preparation process includes the following steps:

(1) Ingredients:

The batching process of the heavy working layer is to mix the 325 mesh Suzhou mud and alumina-based zirconium corundum mullite powder in proportion and mix them evenly in the ball mill. Then, after the other aggregate particles and the binder are evenly mixed, the mixture is well mixed. Powder, stir for 25 minutes and set aside;

The light-weight insulation layer is compounded by mixing the magnesia hollow spheres, the magnesium-aluminum hollow spheres and the binder in proportion, and then adding the rubrite and the high-alumina fine powder in proportion to the mixture for 15 minutes.

(2) Forming:

After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat-insulating layer is 4:3, and the separator is taken out after the feeding, and is formed by vibration pressure molding.

(3) firing:

The formed green body was taken out and dried at 130 ° C, and then the kiln was fired at 1630 ° C for 3 hours.

Example 68: High-aluminum structure heat-insulating integrated composite brick

l~3mm high alumina bauxite 45%

Less than 1mm high alumina bauxite 25%

Not more than 325 mesh high alumina bauxite 1.4%

Not more than 325 mesh fused corundum 28.6%

Plus binder wood citrate solution 3%

Among them, high alumina bauxite is special grade A.

The raw materials used in the lightweight insulation layer and the mass percentage are: corundum hollow sphere 55 %, light mullite aggregate 15%, no more than 325 mesh high alumina bauxite 30%, plus binder wood tannin The salt solution is 6 %, wherein the content of the component mass percentage A1 ₂ 0 ₃ in the corundum hollow sphere is 98%; the mass percentage of the component in the light mullite aggregate is A1 ₂ 0 ₃ is 82%.

The high aluminum structure heat insulation integrated composite brick manufacturing method comprises the following steps:

(1) Ingredients:

Heavy working layer: firstly mix the aggregates of l~3mm and not more than lmm with the binder and add the powder of no more than 325 mesh. Stir for 10 minutes and set aside.

High-strength lightweight insulation: Mix the lightweight aggregates in proportion with the binder, then add the powders in proportion and stir for 10 minutes. (2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 1:1, and the partition is taken out after the feeding, The vibration press is press-formed.

(3) Firing: After the molded body is taken out and dried at 80 ° C, the kiln is fired at 1500 ° C for 3 hours.

Example 69: High-aluminum structure heat-insulating integrated composite brick

l~3mm coke gem 35%

Less than 1mm gemstone 35%

Not more than 325 gemstones 17%

Not more than 325 mesh silica 13%

Adding binder methylcellulose solution 4%

Among them, the gemstone grade is YNS36, and the silica grade is GS-98.5.

According to the above ratio, the mass percentage of the obtained heavy working layer component is 40% for A1 ₂ 0 ₃ %, 52.5% for Si0 ₂ , and the rest are other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer and the mass percentage are: 55% of the corundum hollow sphere, 45% of the cokeite powder of not more than 325 mesh, and 10% of the combined solution of the lignin solution; the composition of the corundum hollow sphere The mass percentage A1 ₂ 0 ₃ is 93%.

(1) Ingredients:

Heavy working layer: firstly mix the aggregates of l~3mm and not more than lmm with the binder and add the powder of no more than 325 mesh. Stir for 30 minutes and set aside;

High-strength lightweight insulation: Mix the lightweight aggregates in proportion with the binder, then add the powder in proportion and stir for 10 minutes.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 3:2, and the partition is taken out after the feeding, The vibration press is press-formed.

(3) Firing: After the molded body is taken out and dried at 100 ° C, the kiln is fired at 1450 ° C for 5 hours.

Example 70: High-aluminum structure heat-insulating integrated composite brick

l~3mm fused corundum

Less than lmm a-Al ₂ 0 ₃ powder

Less than 1mm gemstone

Not more than 325 mesh gemstones

Additive binder pulp waste

Among them, the Jiao Gem brand is YNS36.

According to the above ratio, the mass percentage of the obtained heavy working layer component is A1 ₂ 0 ₃ %, 72%, and Si0 ₂ is 22%, and the rest are other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer and the mass percentage are: 60% of the corundum hollow sphere, 40% of the coke sapphire powder, plus the binder pulp waste Ί % ·, wherein the percentage of the mass percentage of the corundum hollow sphere Α1 ₂ 0 ₃ is 95%.

(1) Ingredients:

Heavy working layer: firstly mix the aggregates of l~3mm and not more than lmm with the binder and add the powder of no more than 325 mesh. Stir for 30 minutes and set aside. High-strength lightweight insulation: Mix the lightweight aggregates in proportion with the binder, then add the powders in proportion and stir for 20 minutes.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 1:1, and the partition is taken out after the feeding, The hydraulic press is press-formed.

(3) Firing: After the molded body is taken out and dried at 100 ° C, the kiln is fired at 1550 ° C for 6 hours. Example 71: High-aluminum structure heat-insulating integrated composite brick

l~3mm fused corundum 40%

Less than lmm a-Al ₂ 0 ₃ powder 5%

Less than 1mm focus gemstone 20%

Not more than 325 gemstones 35%

Plus binder pulp waste 5%

Among them, the Jiao Gem brand is YNS36.

According to the above ratio, the mass percentage of the obtained heavy working layer component is A1 ₂ 0 ₃ %, 67%, and Si0 ₂ is 25%, and the rest are other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer and the mass percentage are: 45% of the corundum hollow sphere, 25% of the lightweight high-alumina aggregate, 30% of the cokeite powder, and 6% of the binder pulp waste liquid, of which the corundum hollow balls mass percentage of component A1 ₂ 0 ₃ 94%; aluminous lightweight aggregate mass percentage of component A1 ₂ 0 ₃ is 80%.

(1) Ingredients:

Heavy working layer: firstly mix the aggregates of l~3mm and not more than lmm with the binder, then add the powder of no more than 325 mesh, stir for 20 minutes and set aside;

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 5:2, and the partition is taken out after the feeding, Friction press machine press forming.

(3) Firing: After the formed body is taken out and dried at 150 ° C, the kiln is fired at 1450 ° C for 8 hours.

Example 72: Silicone structure heat insulation integrated composite brick

More than lmm mullite 29%

More than lmm silicon carbide 7%

Not more than lmm mullite 33%

Not more than lmm silicon carbide 2%

325 mesh mullite 24%

325 mesh silicon carbide 2%

325 mesh Suzhou mud 3%

Plus binder lignosulfonate solution 3%

The mass fraction of the heavy working layer A1 ₂ 0 ₃ obtained according to the above ratio was 61.9%, the mass percentage of SiC was 10%, and the rest were other components introduced by the raw materials. Mass percentage of raw materials and light insulation layers used are: 55% corundum hollow ball, flint powder 325 mesh _{27%, ct-Al 2 0} 3 powder by 18%, binding agent methyl cellulose solution plus 9 %, the mass percentage of A1 ₂ 0 ₃ in the corundum hollow sphere used was 94%.

The preparation process includes the following steps:

(1) Ingredients:

The batching process of the heavy working layer is to mix and match not more than 325 mesh Suzhou mud, 325 mesh mullite and silicon carbide, and then mix it evenly in the ball mill, then mix and mix the other aggregate particles and the binder after mixing. Powder, stir for 25 minutes and set aside;

Ingredients for the process of the lightweight insulation layer corundum hollow sphere with a uniform binding agent is mixed at a ratio, then, to add flint and ct-Al ₂ 0 ₃ powder was stirred for 20 minutes to spare.

(2) Forming:

(3) firing:

The formed green body was taken out and dried at 80 ° C, and then placed in a kiln at 1450 ° C for 7 hours to be fired.

Example 73: Silicon-molded structure heat-insulating integrated composite brick

More than 1mm high alumina bauxite 27%

More than 1mm silicon carbide 12%

Not more than 1mm high alumina bauxite 23%

Not more than 1mm silicon carbide 9%

325 mesh high alumina bauxite 13%

Α-Α1 ₂ 0 ₃ fine powder 11%

325 mesh Suzhou mud 5%

Plus binder lignosulfonate solution 5%

The resulting ratio of heavy above the mass percentage of the working layer Α1 ₂ 0 ₃ was 67.81%, the mass percentage of SiC is 20%, the remainder being other components of the feed introduction.

The raw materials used in the lightweight insulation layer and its mass percentage are: corundum hollow sphere 37%, light mullite aggregate 33%, 325 mesh high aluminum powder 14%, α-Α1 ₂ 0 ₃ micro powder 16% 10% of the binder pulp waste liquid is used, and the mass percentage of Α1 ₂ 0 ₃ in the corundum hollow sphere used is 94%, and the Α1 ₂ ₃ mass percentage of the light mullite aggregate used is 74%.

The preparation process includes the following steps:

(1) Ingredients:

After preparing process heavier work first layer 325 mesh bauxite, clay, and Suzhou ct-Al powder after _₂₀₃ scale well mixed in a ball mill, and then mixed with aggregate particles remaining in the binding agent Add the mixed powder, stir for 30 minutes and set aside;

The light insulation layer is compounded by mixing the corundum hollow sphere and the light mullite aggregate with the binder in proportion, and then adding 325 mesh high aluminum powder and ct-Al ₂ 0 ₃ powder in proportion to the mixture for 10 minutes. .

(2) Forming:

After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 5:1, the separator is taken out after the feeding, and the pressure is pressed by a friction press. forming. (3) firing:

The formed green body was taken out and dried at 150 ° C, and then placed in a kiln at 1400 ° C for 7 hours to be fired.

Example 74: Silicone structure heat-insulating integrated composite brick

More than 1mm fused corundum 29%

More than 1mm silicon carbide 9%

Not more than 1mm fused corundum 34%

Not more than 1mm silicon carbide 1%

Not more than 325 mesh fused corundum 21%

Not more than 325 mesh Suzhou mud 3%

Not more than 325 mesh silicon carbide 3%

Adding binder methylcellulose waste liquid 4%

The mass percentage of the heavy working layer A1 ₂ 0 ₃ obtained according to the above ratio was 85.1%, and the mass percentage of SiC was 13.0%, and the rest were other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer and its mass percentage are: light high alumina aggregate 34%, light mullite aggregate 29%, 325 mesh high aluminum powder 18%, 325 mesh coke powder 19 %, plus the binder methylcellulose waste liquid 11%, the light mullite aggregate used A1 ₂ 0 ₃ mass percentage is 74%, and the light high alumina aggregate is A1 ₂ 0 ₃ 83%.

The preparation process includes the following steps:

(1) Ingredients:

The batching process of the heavy working layer is to firstly mix no more than 325 mesh fused corundum, Suzhou mud and silicon carbide, and mix them evenly in the ball mill, then mix well after the other aggregate particles and the binder are evenly mixed. Powder, stir for 10 minutes and set aside;

The light insulation layer is compounded by mixing light aluminum aggregate, light mullite aggregate and binder in proportion, then adding high aluminum powder and coke sap powder in proportion for 20 minutes.

(2) Forming:

After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 4:3, and the separator is taken out after the feeding, and is pressed and formed by a hydraulic press.

(3) firing:

The formed green body was taken out and dried at 130 ° C, and then placed in a kiln at 1420 ° C for 3 hours to be fired.

Example 75: Silicon carbide structure heat insulation integrated composite brick

l~3mm silicon carbide 45%

Not more than 1mm silicon carbide 25%

325 mesh silicon carbide powder 30%

Adding binder industrial lignosulfonate solution 3%

According to the above ratio, the mass fraction of the SiC component of the heavy working layer is 95%, and the rest is other components introduced by the raw materials. The raw materials used in the lightweight insulation layer are as follows: light mullite aggregate 55 %, ct-Al ₂ 0 ₃ micro powder 45%, plus binder lignin 6%, light weight used The mass% of A1 ₂ 0 ₃ in the mullite aggregate was 74%.

The manufacturing method of the silicon carbide structure heat insulation integrated composite brick comprises the following steps:

(1) Ingredients: Heavy working layer: firstly mix no more than 325 mesh silicon carbide in the ball mill, then add the mixed powder after the other aggregate particles and the binder are evenly mixed, stir for 10 minutes and then set aside;

High-strength lightweight insulation: Mix the light mullite aggregates in proportion with the binder, then add ct-Al ₂ 0 ₃ micropowder in proportion for 10 minutes.

(2) Forming: After the ingredients are finished, the material cavity of the forming mold is partitioned into two parts by a partition plate. The length ratio of the dense working layer and the high-strength lightweight heat-insulating layer is 5: 1. After the feeding, the partition is extracted, and the friction is adopted. The press is press molded.

(3) Firing: After the molded body is taken out and dried at 150 ° C, the kiln is fired at 1400 ° C for 3 hours.

Example 76: Silicon carbide structure heat insulation integrated composite brick

l~3mm silicon carbide 45%

Not more than 1mm silicon carbide 25%

325 mesh silicon carbide powder 12.2%

Α-Α1 ₂ 0 ₃ micropowder 12.8%

High purity silicon powder 5%

Adding binder industrial yellow dextrin solution 3%

The mass fraction of the SiC component of the heavy working layer obtained according to the above ratio was 79%, and the rest was other components introduced by the raw materials. The raw materials used in the lightweight insulation layer and its mass percentage are: corundum hollow sphere 67%, 325 mesh high aluminum micropowder 33%, plus lignosulfonate solution binder 8 %, corundum hollow sphere A1 ₂ 0 ₃ The mass percentage is 94%.

(1) Ingredients:

Heavy working layer: First mix ct-Al ₂ 0 ₃ micropowder, silicon micropowder and 325 silicon carbide powder for later use, then mix the silicon carbide aggregate particles with the binder and add the mixed powder, stir for 25 minutes. After the backup.

High-strength lightweight insulation: Mix the corundum hollow sphere lightweight aggregate in proportion with the binder, then add the high-alumina micro-powder in proportion for 20 minutes.

(2) Molding: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate. The length ratio of the dense working layer and the high-strength lightweight heat-insulating layer is 5:1, and the separator is taken out after the feeding, using vibration Press molding.

(3) Firing: After the molded body is taken out and dried at 110 ° C, the kiln is fired at 1450 ° C for 5 hours.

Example 77: Silicon carbide structure heat insulation integrated composite brick

l~3mm carbonized baby

High alumina bauxite larger than 1mm

Not more than 1mm silicon carbide

Not more than 1mm high alumina bauxite

325 mesh silicon carbide powder

325 mesh andalusite powder

Α-Α1 ₂ 0 ₃ fine powder

Pulp waste

The weight percentage of the SiC component of the heavy working layer obtained according to the above ratio is 50%, and the rest is other components introduced by the raw materials. The raw materials used in the lightweight insulation layer and the mass percentage are: 70% light mullite bone, 30% 325 mesh fused corundum powder, and 7.5% added pulp pulp liquid binder. Light mullite used. The mass percentage of A1 ₂ 0 _{3 in the} aggregate was 74%. The manufacturing method of the silicon carbide structure heat insulation integrated composite brick comprises the following steps:

(1) Ingredients:

Heavy working layer: First mix ct-Al ₂ 0 ₃ micropowder, silicon micropowder and 325 mesh silicon carbide powder, then mix the silicon carbide aggregate particles with the binder and add the mixed powder. Stir 15 Standby after minutes;

High-strength lightweight insulation: Mix the light mullite aggregates in proportion with the binder, then add the fused corundum powder in proportion to the mixture for 22 minutes.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the dense working layer and the high-strength lightweight heat insulating layer is 1:1, the separator is taken out after the feeding, and the hydraulic press is used. Press molding.

(3) Firing: After the molded body is taken out and dried at 90 ° C, the kiln is fired at 1350 ° C for 7 hours.

Example 78: Silicon carbide structure heat insulation integrated composite brick

l~3mm silicon carbide 34%

Not more than 1mm silicon carbide 15%

Not more than 1mm focus gemstone 17%

325 mesh silicon carbide powder 16%

325 mesh coke powder 13%

Clay 5%

Lignin solution 4%

The mass fraction of the SiC component of the heavy working layer obtained according to the above ratio was 61.7%, and the rest was the other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer are as follows: light high alumina aggregate 63%, 325 mesh coke gypsum powder 37 plus methyl cellulose solution binder 9 %, used lightweight high alumina aggregate The mass percentage of A1 ₂ 0 ₃ in the medium is 83%. The manufacturing method of the silicon carbide structure heat insulation integrated composite brick comprises the following steps:

(1) Ingredients:

Heavy working layer: First mix the clay, 325 mesh gem powder and 325 mesh silicon carbide powder, then mix the silicon carbide aggregate and coke gem particles with the binder and add the mixed powder. Stir 15 Standby after minutes;

High-strength lightweight insulation: Mix the lightweight high-aluminum aggregate in proportion with the binder, then add the pyro-fine powder in proportion to the mixture for 30 minutes.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate. The length ratio of the dense working layer and the high-strength lightweight heat-insulating layer is 3: 2, and the partition is taken out after the feeding, and the vibration is used. Press molding.

(3) Firing: After the molded body is taken out and dried at 130 ° C, the kiln is fired at 1400 ° C for 7 hours.

Example 79: Silicon carbide structure heat insulation integrated composite brick

l~3mm silicon carbide 39%

Not more than 1mm silicon carbide 30%

325 mesh silicon carbide powder 9%

325 mesh mullite powder 17%

Clay 5%

Methyl cellulose solution 3.8%

According to the above ratio, the mass fraction of the SiC component of the heavy working layer is 65.6%, and the rest is other materials introduced by the raw materials. Minute.

The raw materials used in the lightweight insulation layer are as follows: light high alumina aggregate 23%, corundum hollow ball 20%, light mullite aggregate 20%, 325 mesh coke gypsum powder 37%, plus The pulp waste liquid binder is 10%, and the light high alumina aggregate used has an A1 ₂ 0 ₃ mass percentage of 83%.

(1) Ingredients:

Heavy working layer: First mix the clay, mullite powder and 325 mesh silicon carbide powder, then mix the silicon carbide aggregate with the binder and add the mixed powder. Stir for 10 minutes and set aside;

High-strength lightweight insulation: Mix light-weight high-aluminum aggregate, corundum hollow sphere and light mullite aggregate in proportion and binder, then add pyro-fine powder in proportion to stir for 25 minutes.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the dense working layer and the high-strength lightweight heat-insulating layer is 1:3, and the separator is taken out after the feeding, using friction Press molding.

(3) Firing: After the molded body is taken out and dried at 130 ° C, the kiln is fired at 1350 ° C for 7 hours. Example 80: Clay structure heat-insulating integrated composite brick

The raw materials used in the heavy working layer of this embodiment and the mass percentage thereof are:

l~3mm coke gems

Less than 1mm gemstone

Not more than 325 gemstones

325 mesh Suzhou mud

Additional binder lignosulfonate solution

Among them, the Jiao Gem brand is YNS36.

According to the above ratio, the mass percentage of the obtained heavy working layer component is A1 ₂ 0 ₃ %, 43%, and Si0 ₂ 52.4%, and the rest are other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer and the mass percentage are: corundum hollow sphere 40%, floating beads 30%, no more than 325 mesh coke gemstone 20%, 325 mesh Suzhou mud 5%, plus binder pulp waste It was 6%; wherein the hollow spherical corundum ingredients in the mass percentage of A1 ₂ 0 ₃ 96%, CENOSPHERE components mass percentage of A1 ₂ 0 ₃ is 25%, Si0 ₂ is 65%.

The clay-shell structure heat insulation integrated composite brick manufacturing method comprises the following steps:

(1) Ingredients:

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 1:3, and the partition is taken out after the feeding, The vibration press is press-formed.

(3) Firing: After the molded body is taken out and dried at 80 ° C, the kiln is fired at 1250 ° C for 3 hours.

Example 81: Clay-structure heat-insulating integrated composite brick

l~3mm coke gems

l~3mm baby stone

Less than 1mm gemstone

Not more than 325 gemstones

Additional binder lignosulfonate

Among them, the gemstone grade is YNS36, and the silica grade is GS-98.5.

According to the above ratio, the mass percentage of the obtained heavy working layer component is 30% by mass of A1 ₂ 0 ₃ %, and 65% by weight of silicon oxide, and the rest are other components introduced by the raw material.

The raw materials used in the lightweight insulation layer and the mass percentage are: 45% of lightweight high alumina aggregate, 15% of lightweight ceramsite, 40% of 325 gemstone, and methyl fiber with binder. 7% pigment solution; aluminous lightweight aggregate wherein the mass percentage of component A1 ₂ 0 ₃ is 70%, the light ceramic mass percentage of component A1 ₂ 0 ₃ 18%, 65% silica.

(1) Ingredients:

Heavy working layer: firstly mix the aggregates of l~3mm and not more than lmm with the binder and add the powder of no more than 325 mesh, stir for 10 minutes and set aside;

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 3:2, and the partition is taken out after the feeding, Friction press machine press forming.

(3) Firing: After the molded body is taken out and dried at 100 ° C, the kiln is fired at 1200 ° C for 5 hours.

Example 82: Clay-structure heat-insulating integrated composite brick

l~3mm coke gems

Less than 1mm gemstone

Not more than 325 mesh gemstones

Not more than 325 mesh Liuzhou mud

Methylcellulose

Among them, the Jiao Gem brand is YNS36.

According to the above ratio, the mass percentage of the obtained heavy working layer component is 42% of A1 ₂ 0 ₃ %, and 47.5% of Si0 ₂ , and the rest are other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer are as follows: 20% of corundum hollow spheres, 25% of light mullite aggregates, 35% of 325 mesh coke gypsum powder, and 325 mesh Liuzhou mud 10%. plus binding agent 10% lignosulfonate solution; wherein hollow spherical corundum ingredients in the mass percentage of A1 ₂ 0 ₃ 96%, light mullite aggregate ingredients in the mass percentage of A1 ₂ 0 ₃ 74% .

(1) Ingredients:

High-strength lightweight insulation: Mix the lightweight aggregates in proportion with the binder, then add the powders in proportion and stir for 20 minutes.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 1:3, and the partition is taken out after the feeding, The vibration press is press-formed. (3) Firing: After the molded body is taken out and dried at 100 ° C, the kiln is fired at 1100 ° C for 6 hours. Example 83: Clay structure heat-insulating integrated composite brick

l~3mm coke gems 40%

Less than 1mm coke gem 25%

Not more than 325 mesh gemstone 25%

Not more than 325 mesh Liuzhou mud 10%

Plus binder pulp waste 5%

Among them, the gemstone grade is YNS36, and the silica grade is GS-98.5.

According to the above ratio, the mass fraction of the obtained heavy working layer is A1 ₂ 0 ₃ 48%, Si0 ₂ 43%, and the rest are other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer are 15% of floating beads, 15% of lightweight high-alumina aggregates, 20% of high-alumina ceramsite, 40% of 325-gauge gemstone powder, and 325 mesh clay 10%. 8% by weight of a phosphoric acid solution with a concentration of 25%, wherein the mass percentage of the bleaching bead used is: A1 ₂ 0 ₃ % is 25%, Si0 ₂ % is 50%, and the rest are other ingredients introduced by the raw materials; A1 ₂ 0 ₃ component mass percentage in the granule: A1 ₂ 0 ₃ % is 25%, Si0 ₂ % is 55%%; Lightweight high alumina aggregate component mass percentage: A1 ₂ 0 ₃ % is 80% , Si0 ₂ % is 10%.

(1) Ingredients:

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 5:1, and the partition is taken out after the feeding, The hydraulic press is press-formed.

(3) Firing: After the formed body is taken out and dried at 150 ° C, the kiln is fired at 1200 ° C for 8 hours.

Example 84: High siliceous structure heat insulation integrated composite brick

l~3mm coke gems 45%

Less than lmm gemstone 21.7%

Less than lmm silica 3.3%

Not more than 325 mesh silica 30%

Plus binder pulp waste 3%

Among them, the gemstone grade is YNS36, and the silica grade is GS-98.5.

According to the above ratio, the mass fraction of the obtained heavy working layer is Al ₂ 0 ₃ 28%, SiO ₂ 70%, and the rest are other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer and the mass percentage are: 45% of the corundum hollow sphere, 25% of the floating beads, 30% of the fused fused corundum of 325 mesh, and 6% of the binder waste liquid; The mass percentage of the component in the sphere A1 ₂ 0 ₃ is 93%, and the percentage by mass of the component in the floating beads is 40% for A1 ₂ 0 _{3 and} 50% for Si0 ₂ .

The high siliceous structure heat insulation integrated composite brick manufacturing method comprises the following steps:

(1) Ingredients: Heavy working layer: firstly mix the aggregates of l~3mm and not more than lmm with the binder, then add the powder of no more than 325 mesh, stir for 10 minutes and set aside;

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 5:2, and the partition is taken out after the feeding, The vibration press is press-formed.

(3) Firing: After the molded body is taken out and dried at 80 ° C, the kiln is fired at 1400 ° C for 3 hours.

Example 85: High siliceous structure heat insulation integrated composite brick

L~3mm baby stone

Less than 1mm gemstone

Less than lmm

Not more than 325 mesh silica

Additional binder lignosulfonate

Among them, the gemstone grade is YNS36, and the silica grade is GS-98.5.

According to the above ratio, the mass percentage of the obtained heavy working layer component is A1 ₂ 0 ₃ %, 8%, and Si0 ₂ is 90%, and the rest are other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer and the mass percentage are: aluminum-calcium hollow sphere 40%, light high-alumina aggregate 15%, light ceramsite 15%, no more than 325 mesh coke gemstone 30%, plus The binder methylcellulose solution is 6 %; wherein the aluminum-calcium hollow sphere has a mass percentage of A1 ₂ 0 ₃ of 99.9%, calcium oxide of 0.1%, and a component content of light high alumina aggregate of A1 ₂ 0 ₃ 85%, lightweight ceramic component in the mass percentage of A1 ₂ 0 ₃ is 25%, Si0 ₂ is 55%.

(1) Ingredients:

(3) Firing: After the molded body is taken out and dried at 100 ° C, the kiln is fired at 1375 ° C for 5 hours.

Example 86: High siliceous structure heat insulation integrated composite brick

l~3mm silica 40%

Less than 1mm gemstone 20%

Less than lmm silica 15%

Not more than 325 mesh silica 25%

Adding binder methylcellulose solution 4%

Among them, the gemstone grade is YNS36, and the silica grade is GS-98.5.

According to the above ratio, the mass percentage of the obtained heavy working layer component is A1 ₂ 0 ₃ %, the Si0 ₂ % is 89%, and the rest are other components introduced by the raw materials. The raw materials used in the lightweight insulation layer and the mass percentage are: corundum hollow sphere 40%, light mullite aggregate 15%, no more than 325 mesh coke gemstone 45%, plus binder pulp waste 10% ; wherein the hollow spherical corundum ingredients in the mass percentage of A1 ₂ 0 ₃ 96%, light mullite aggregate ingredients in the mass percentage of A1 ₂ 0 ₃ 65%.

(1) Ingredients:

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 1:1, and the partition is taken out after the feeding, The vibration press is press-formed.

(3) Firing: After the molded body is taken out and dried at 100 ° C, the kiln is fired at 1350 ° C for 6 hours.

Example 87: High siliceous structure heat insulation integrated composite brick

l~3mm silica 40%

Less than 1mm silica 25%

Not more than 325 gemstones 15%

Not more than 325 mesh silica 20%

Plus bonding agent water glass 5%

Among them, the gemstone grade is YNS36, and the silica grade is GS-98.5.

According to the above ratio, the mass percentage of the obtained heavy working layer component is A1 ₂ 0 ₃ %, 6%, Si0 ₂ 92%, and the rest are other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer and the mass percentage are: 65% of corundum hollow, no more than 325 mesh gemstone 35 plus 95% of the binder lignosulfonate solution; wherein the content of the mass percentage of the corundum hollow sphere A1 ₂ 0 ₃ is 98%. The high siliceous structure heat insulation integrated composite brick manufacturing method comprises the following steps:

(1) Ingredients:

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate. The length ratio of the heavy working layer and the high-strength lightweight heat-insulating layer is 2:1, and the partition is taken out after the feeding, The hydraulic press is press-formed.

(3) Firing: After the molded body is taken out and dried at 150 ° C, the kiln is fired at 1380 ° C for 8 hours.

Example 88: Magnesium olivine structure heat insulation integrated composite brick

The raw material particle grading and its mass percentage used in the heavy working layer are:

l~3mm forsterite 45%

Not more than lmm forsterite 25%

325 mesh forsterite 5%

325 mesh sintered magnesium powder 4%

325 mesh silica 21% Adding binder industrial lignosulfonate solution 4%

Among them, the raw materials used are Hubei Yichang forsterite, grade GS-98.5 silica and sintered magnesium powder.

Mass percentage of the above-described ratio, a heavy work resulting layer component MgO% to 40%, Si0 _2% to 45%, other components remaining as a raw material introduced.

The raw materials used in the lightweight insulation layer and the mass percentage are: 70% of the corundum hollow sphere, 30% of the 325 mesh forsterite, and 6% of the binder pulp waste liquid, wherein the corundum hollow sphere used is A1 ₂ 0 ₃ The percentage by mass of the ingredients is 93%.

The manufacturing method of the forsterite structure heat insulation integrated composite brick comprises the following steps:

(1) Ingredients:

High-strength lightweight insulation: Mix the corundum hollow sphere lightweight aggregate in proportion with the binder, then add 325 target powder in proportion and stir for 10 minutes.

(3) Firing: After the molded body is taken out and dried at 80 ° C, the kiln is fired at 1600 ° C for 3 hours.

Example 89: Magnesium olivine structure heat insulation integrated composite brick

l~3mm forsterite 35%

Not more than lmm silica 31.8%

Not more than lmm fused magnesia 3.2%

325 mesh fused magnesium powder 30%

Adding binder methylcellulose solution 4%

Among them, the raw materials used are Hubei Yichang forsterite, grade GS-98.5 silica, fused magnesia and fused magnesium powder. Mass percentage of the above-described ratio, a heavy work resulting layer component MgO% to 50%, Si0 _2% to 43%, other components remaining as a raw material introduced.

The raw materials used in the lightweight insulation layer and the mass percentage are: corundum hollow sphere 60%, light mullite aggregate 10%, 325 mesh forsterite 30%, plus binder pulp waste 6%, The mass percentage of the A1 ₂ 0 ₃ component in the corundum hollow sphere used is 95%, and the mass percentage A1 ₂ 0 ₃ in the light mullite aggregate is 65%.

(1) Ingredients:

High-strength lightweight insulation: Mix the corundum hollow sphere and the light mullite aggregate in proportion and binder, then add 325 mesh powder according to the ratio and stir for 30 minutes.

(3) Firing: After the molded body is taken out and dried at 100 ° C, the kiln is fired at 1550 ° C for 8 hours.

Example 90: Magnesium olivine structure heat insulation integrated composite brick

l~3mm forsterite 40% Not more than 1mm forsterite 35%

325 mesh forsterite 19%

325 mesh fused magnesium powder 6%

Adding binder industrial lignosulfonate solution 3%

Among them, the raw materials used are Hubei Yichang forsterite and fused magnesium powder.

According to the above ratio, the mass percentage of the obtained heavy working layer component is 51% by mass, and Si0 ₂ % is 30%, and the rest is other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer and the mass percentage are: 40% of corundum hollow spheres, 15% of lightweight high alumina aggregates, 45% of 325 mesh forsterite, and 10% of binder pulp waste. The mass percentage of the A1 ₂ 0 ₃ component in the corundum hollow sphere used is 93%, and the component mass percentage A1 ₂ 0 _{3 in the} lightweight high alumina aggregate is 70%.

(1) Ingredients:

High-strength lightweight insulation: Mix the corundum hollow ball and the lightweight high-aluminum aggregate in proportion and binder, then add 325 mesh powder in proportion and stir for 20 minutes.

(3) Firing: After the molded body is taken out and dried at 80 ° C, the kiln is fired at 1500 ° C for 8 hours.

Example 91: Magnesium olivine structure heat insulation integrated composite brick

l~3mm forsterite

Not more than lmm forsterite

Not more than lmm

325 mesh forsterite

Additive binder pulp waste

Among them, the raw materials used are Hubei Yichang forsterite and silica grade GS-98.5.

According to the above ratio, the mass percentage of the obtained heavy working layer component is 47% by mass, Si0 ₂ % is 35%, and the rest is other components introduced by the raw material.

The raw materials used in the lightweight insulation layer and the mass percentage are: 65% of the corundum hollow sphere, 35% of the 325 mesh forsterite, and 9% of the binder pulp waste liquid, wherein the corundum hollow sphere used is A1 ₂ 0 ₃ The compositional mass percentage is 96%.

(1) Ingredients:

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate. The length ratio of the heavy working layer and the high-strength lightweight heat-insulating layer is 2:1, and the partition is taken out after the feeding, Vibratory press press molding.

(3) Firing: After the molded body is taken out and dried at 150 ° C, the kiln is fired at 1580 ° C for 6 hours. Example 92: Magnesium-aluminum-titanium structure heat-insulating integrated composite brick

In the heavy working layer of the present embodiment, DMS98 type fused magnesia, α-Α1 ₂ _{3 3} micropowder and titanium white powder are used as raw materials, and the particle gradation and the mass percentage thereof are:

Greater than lmm fused magnesia

Greater than lmm fused spinel 1.4%

Not more than lmm fused magnesia 29%

Not more than 325 mesh α-Α1 ₂ 0 ₃ fine powder 6%

325 mesh fused magnesium powder 24.4%

325 mesh titanium dioxide 3.6%

Adding binder paper pulp waste

According to the above ratio, the mass fraction of the MgO component of the heavy working layer is 85%, the mass percentage of the A1 ₂ 0 ₃ component is 10%, and the mass percentage of the Ti0 ₂ component is 3%.

The raw materials used in the lightweight insulation layer and its mass percentage are: alumina hollow sphere 10%, magnesium aluminum hollow sphere 10%, corundum hollow sphere 10%, chrome corundum hollow sphere 10%, zirconium corundum hollow sphere 15 %, 325 mesh sintered corundum powder 45%, plus industrial lignosulfonate solution 6%, the alumina hollow sphere used is 1 ₂ _{3 3} mass percent 98%, magnesium aluminum hollow sphere 8 1 ₂ 0 ₃ The mass percentage is 99.9%, the ^3⁄40 mass percentage is 0.1%, the A1 ₂ 0 ₃ mass percentage in the corundum hollow sphere is 93%, and the zirconium corundum hollow sphere is 1 ₂ ₀₃ mass percentage 99.9. %, Zr0 ₂ mass percent is 0.1%

Chromium corundum hollow sphere in eight _₁₂₀₃ mass percentage of 99.9%, Cr ₂ 0 ₃ content of 0.1% by mass percentage. The method for manufacturing a magnesium aluminum titanium structure/insulation integrated composite brick comprises the following steps:

(1) Ingredients:

Heavy working layer: Firstly mix the particles larger than lmm and not more than 1 mm with the binder and add no more than 325 mesh powder. Stir for 10 minutes and set aside.

High-strength lightweight insulation layer: The corundum hollow sphere, the alumina hollow sphere, the magnesium-aluminum hollow sphere, the zirconium corundum hollow sphere, the chrome corundum hollow sphere lightweight aggregate are uniformly mixed according to the ratio and the binder, and then the 325 mesh sintering is added in proportion. The corundum powder is stirred for 30 minutes.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate. The length ratio of the dense working layer and the high-strength lightweight heat-insulating layer is h 2 , and the partition is taken out after the feeding, and the vibration is added. Compression molding.

(3) Firing: After the molded body is taken out and dried at 150 ° C, the kiln is fired at 1800 ° C for 4 hours. Example 93: Magnesium-aluminum-titanium structure heat-insulating integrated composite brick

In the heavy working layer of this embodiment, MS97A sintered magnesia, HMAS75 sintered spinel and first grade high titanium slag are used as raw materials, and the particle gradation and mass percentage are:

More than lmm sintered magnesia 20%

More than 1mm sintered spinel 25%

Not more than lmm sintered spinel 5%

Not more than lmm sintered magnesia 20%

No more than lmm sintered spinel 10%

325 mesh sintered magnesium powder 18.4%

325 mesh high titanium slag 1.6% Plus binder pulp waste 3%

According to the above ratio, the mass fraction of the MgO component of the heavy working layer is 65%, the mass percentage of the A1 ₂ 0 ₃ component is 30%, and the mass percentage of the Ti0 ₂ component is 1.5%.

The raw materials used in the lightweight insulation layer and its mass percentage are: alumina hollow sphere 10%, magnesium aluminum hollow sphere 10%, corundum hollow sphere 15%, chrome corundum hollow sphere 15%, zirconium corundum hollow sphere 20 %, 325 mesh sintered α-Α1 ₂ 0 ₃ micropowder 30%, plus lignosulfonate solution 10%, the alumina hollow sphere used is 1 ₂ _{3 3} mass percent 99%, magnesium aluminum hollow sphere 1 ₂ 0 ₃ mass percent content is 0.1%, MgO mass percentage is 99.9%, corundum hollow sphere A1 ₂ 0 ₃ mass percentage is 98%, chrome corundum hollow sphere A1 ₂ 0 ₃ mass percentage is 70 %, Cr ₂ 0 ₃ mass percentage is 30%, zirconium corundum hollow spheres are incorporated into 1 ₂ _{3 3} mass percent of 90%, and Zr0 ₂ mass percent is 10%.

The method for manufacturing a magnesium-aluminum-titanium structure/insulation integrated composite brick comprises the following steps:

(1) Ingredients:

Heavy working layer: firstly mix the particles larger than 1mm and not more than 1mm with the binder, then add the powder of not more than 325 mesh, stir for 10 minutes and then set aside.

High-strength lightweight insulation layer: The corundum hollow sphere, the alumina hollow sphere, the magnesium-aluminum hollow sphere, the zirconium corundum hollow sphere, the chrome corundum hollow sphere lightweight aggregate are uniformly mixed according to the ratio and the binder, and then the 325 mesh sintering is added in proportion. The α-Α1 ₂ 0 ₃ fine powder was stirred for 10 minutes for use.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate. The length ratio of the dense working layer and the high-strength lightweight heat-insulating layer is 3:2, and the partition is taken out after the feeding, and the vibration is used. Press molding.

(3) Firing: After the molded body is taken out and dried at 150 ° C, the kiln is fired at 1600 ° C for 8 hours. Example 94: Magnesium-aluminum-titanium structure heat-insulating integrated composite brick

In the heavy working layer of this embodiment, MS98A sintered magnesia, A grade high fused spinel and titanium yellow powder are used as raw materials, and the particle gradation and mass percentage are:

Sintered magnesia greater than lmm 10%

More than lmm fused spinel 28%

Not more than lmm fused spinel 5%

Not more than lmm sintered magnesia 22%

325 mesh fused spinel 5%

325 mesh sintered magnesium powder 13%

325 mesh titanium yellow powder 17%

Plus binder paper pulp waste 3%

According to the above ratio, the mass fraction of the MgO component of the heavy working layer is 60%, the mass percentage of the A1 ₂ 0 ₃ component is 22%, and the mass percentage of the Ti0 ₂ component is 15%.

The raw materials used in the lightweight insulation layer and the mass percentage are: 55 % of the magnesium aluminum hollow sphere, 45% of the 325 mesh sintered spinel, and 6% of the methyl cellulose solution, and the magnesium aluminum hollow sphere used. The A1 ₂ 0 ₃ mass percentage is 50%, and the MgO mass percentage is 45%.

(1) Ingredients:

Heavy working layer: firstly mix the particles larger than lmm and not more than lm with the binder and then add More than 325 mesh powder, stir for 30 minutes and set aside.

High-strength lightweight insulation layer: Mix the magnesium-aluminum hollow sphere lightweight aggregate in proportion with the binder, then add 325 mesh fused spinel micro-powder in proportion to stir for 20 minutes.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate. The length ratio of the dense working layer and the high-strength lightweight heat-insulating layer is h 3, and the separator is taken out after the feeding, and the vibration is added. Compression molding.

(3) Firing: After the molded body is taken out and dried at 150 ° C, the kiln is fired at 1700 ° C for 3 hours. Example 95: Magnesium-aluminum-titanium structure heat-insulating integrated composite brick

In this embodiment, the DMS98 fused magnesia, the A-grade high-melting spinel and the titanium dioxide are used as raw materials in the heavy working layer, and the particle gradation and its mass percentage are:

More than 1mm fused magnesia 30%

More than 1mm fused spinel 10%

Not more than 1mm fused spinel 15%

Not more than 1mm fused magnesia 20%

325 mesh fused spinel 5%

325 mesh fused magnesium powder 10%

325 mesh titanium dioxide 10%

Plus binder paper pulp waste 5%

According to the above ratio, the mass fraction of the MgO component of the heavy working layer was 71%, the mass percentage of the A1 ₂ 0 ₃ component was 172%, and the mass percentage of the Ti0 ₂ component was 9%.

The raw materials used in the lightweight insulation layer and its mass percentage are: 30% chrome corundum hollow sphere, 30% zirconium corundum hollow sphere, 40% 325 mesh sintered corundum powder, plus 7% lignosulfonate solution. chromium corundum hollow sphere A1 ₂ 0 ₃ mass percentage of 70%, Cr ₂ 0 ₃ mass percentage of 30% hollow sphere AZS VIII _₁₂₀₃ mass percentage of 90%, Zr0 ₂ The mass percentage is 10%.

(1) Ingredients:

Heavy working layer: firstly mix the particles larger than 1mm and not more than 1mm with the binder, then add the powder of not more than 325 mesh, stir for 10 minutes and then use.

High-strength lightweight insulation layer: Mix the chrome corundum hollow sphere and the zirconium corundum lightweight aggregate in proportion and binder, then add 325 mesh sintered corundum powder in proportion to the mixture for 30 minutes.

(2) Forming: After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate. The length ratio of the dense working layer and the high-strength lightweight heat-insulating layer is 5:1, the separator is taken out after the feeding, and the vibration is used. Press molding.

(3) Firing: After the molded body is taken out and dried at 150 ° C, the kiln is fired at 1750 ° C for 4 hours.

Example 96: Magnesia-titanium structure heat insulation integrated composite brick

Mass percentage of raw materials and the heavy working layer is employed: MgO mass percentage of 95% of sintered magnesia, Ti0 ₂ mass percentage of 92% Titania Slag

More than 1mm sintered magnesia 37% Not more than 1mm sintered magnesia 20%

Not more than lmm high titanium slag 12%

325 mesh Suzhou mud 2%

325 mesh sintered magnesia 29%

Plus binder aluminum sulphate solution 5%

The mass fraction of the heavy working layer MgO obtained according to the above ratio was 80.0%, and the mass percentage of Ti0 ₂ was 11.0%, and the rest were other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer and the mass percentage are: magnesium aluminum hollow sphere 21%, magnesium titanium hollow sphere 34%, sintered magnesium powder 45%, plus yellow dextrin 10%, used in the magnesium aluminum hollow sphere The mass percentage of each component was 99.9%, the A1 ₂ 0 ₃ was 0.1%, the magnesium titanium hollow spheres were 99.9%, and the TiO _{2 was} 0.1%.

The preparation process includes the following steps:

(1) Ingredients:

Heavy working layer: Firstly mix more than lmm aggregate and no more than lmm aggregate particles and binder, then add no more than 325 mesh powder, stir for 20 minutes and set aside.

(2) Forming:

After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 5:1, and the separator is taken out after the feeding, and the vibration is pressed and formed.

(3) firing:

The formed green body was taken out and dried at 150 ° C, and then the kiln was fired at 1550 ° C for 8 hours.

Example 97: Magnesia-titanium structure heat insulation integrated composite brick

The raw materials used in the heavy working layer and the mass percentage are: fused magnesia with a mass percentage of MgO of 97%, fused magnesia greater than lmm

Not more than lmm fused magnesia

325 mesh Suzhou mud

325 mesh fused magnesia

Titanium dioxide

Additive binder pulp waste

The mass fraction of the heavy working layer MgO obtained according to the above ratio was 92.9%, and the mass percentage of Ti0 ₂ was 0.2%, and the rest were other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer and the mass percentage are: magnesium magnesium hollow sphere 43%, magnesium chromium hollow sphere 27%, spinel powder 30%, plus binder methyl cellulose solution 7%, magnesium used The mass percentage of each component in the calcium hollow sphere is 99.9%, CaO is 0.1%, the magnesia-chromium hollow sphere MgO is 99.9%, and Cr ₂ 0 ₃ is 0.1%.

The preparation process includes the following steps:

(1) Ingredients:

High-strength lightweight insulation layer: Mix the lightweight aggregate in proportion with the binder, then add the powder according to the proportion and stir for 10 minutes. Clock spare.

(2) Forming:

(3) firing:

Example 98: Magnesia-titanium structure heat insulation integrated composite brick

The raw materials used in the heavy working layer and the mass percentage are: fused magnesia with a mass percentage of MgO of 97%, greater than lmm fused magnesia 38.9%

Not more than lmm fused magnesia 32%

325 mesh Suzhou mud 3%

325 mesh fused magnesia 21%

Titanium dioxide 5.1%

Additional binder lignosulfonate solution

The mass fraction of the heavy working layer MgO obtained according to the above ratio was 89.1%, the mass percentage of Ti0 ₂ was 5.0%, and the rest were other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer and the mass percentage are: magnesium aluminum hollow sphere 33%, magnesium titanium hollow sphere 35%, 325 mesh spinel powder 32%, plus methyl cellulose solution 9%, magnesium used The mass percentage of each component in the titanium hollow sphere is 90%, Ti0 ₂ is 10%, the magnesium aluminum hollow sphere MgO is 0.1%, and the A1 ₂ 0 ₃ is 99.9%.

The preparation process includes the following steps:

(1) Ingredients:

(2) Forming:

(3) firing:

The formed green body was taken out and dried at 120 ° C, and then placed in a kiln at 1800 ° C for 3 hours to be fired.

Example 99: Magnesia-titanium structure heat insulation integrated composite brick

The raw materials used in the heavy working layer and the mass percentage are: fused magnesia with a mass percentage of MgO of 97%, sintered magnesia with a mass percentage of MgO of 95%, and Ti0 ₂ mass percent 99% titanium dioxide

Greater than lmm fused magnesia

Not more than 1mm sintered magnesia

325 mesh Suzhou mud

325 mesh fused magnesia

Titanium dioxide

Addition of yellow dextrins

The mass fraction of the heavy working layer MgO obtained according to the above ratio was 83.8%, and the mass percentage of Ti0 ₂ was 9%, and the rest were other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer and its mass percentage are: magnesium aluminum hollow sphere 41%, magnesia hollow sphere 19%, 325 mesh spinel powder 23%, 325 mesh sintered magnesium powder 17%, plus methyl The cellulose solution was 9%, the mass percentage of each component in the magnesium aluminum hollow sphere used was 73%, the A1 ₂ 0 ₃ was 26%, and the MgO in the magnesia hollow sphere was 97%.

The preparation process includes the following steps:

(1) Ingredients:

(2) Forming:

After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the heavy working layer and the high-strength lightweight heat insulating layer is 1:1, the separator is taken out after the feeding, and the pressure is pressed by a friction press. forming.

(3) firing:

The formed green body was taken out and dried at 120 ° C, and then the kiln was fired at 1650 ° C for 5 hours.

Example 100: Magnesia-titanium structure heat insulation integrated composite brick

Not more than lmm fused magnesia

325 mesh Suzhou mud

325 mesh fused magnesia

Titanium dioxide

Additive binder pulp waste

The raw materials used in the lightweight insulation layer and the mass percentage are: magnesium magnesium hollow sphere 43%, magnesium chromium hollow sphere 27%, spinel powder 30%, plus binder methyl cellulose solution 7%, magnesium used The mass percentage of each component in the calcium hollow sphere is 0.1%, CaO is 99.9%, the magnesia-chromium hollow sphere MgO is 70%, and Cr ₂ 0 ₃ is 30%.

The preparation process includes the following steps:

(1) Ingredients:

(2) Forming:

Example 101: Alkali-resistant structural heat insulation integrated composite brick

More than 1mm pyrophyllite 45%

Less than 1mm pyrophyllite 25%

325 eye pyrophyllite 26%

325 mesh Suzhou mud 4%

Adding binder sulfite pulp waste 3%

According to the above ratio, the mass percentage of the obtained heavy working layer component is A1 ₂ 0 _{3 :} 25%, Si0 ₂ : 70%, Fe ₂ 0 ₃ : 0.6%, and the rest are other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer are 40% of the corundum hollow spheres, 50% of the high alumina bauxite, and 10% of the yellow dextrin solution of the clay 10 plus 20% by mass, wherein the corundum hollow is used. The mass percentage of the A1 ₂ 0 ₃ component in the sphere was 93%.

The alkali-resistant structural heat insulation integrated composite brick manufacturing method comprises the following steps:

(1) Ingredients:

(2) Forming: After the ingredients are finished, the size ratio between the heavy working layer and the light heat insulating layer is determined according to the use position, wear rate and service life of the material, and the material cavity of the forming mold is partitioned by the partition according to the ratio. In two parts, after the feeding, the separator is taken out and molded by vibration pressure.

(3) Firing: After the molded body is taken out and dried at 80 ° C, the kiln is fired at 1350 ° C for 5 hours.

Example 102: Alkali-resistant structural heat insulation integrated composite brick

Gemstone larger than lmm

Less than 1mm gemstone

325 mesh quartz powder

325 mesh Suzhou mud

Additive binder sulfite pulp waste

According to the above ratio, the mass percentage of the obtained heavy working layer component is A1 ₂ 0 _{3 :} 30%, Si0 ₂ : 65%, Fe ₂ 0 ₃ : 1.2%, and the rest are other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer are 40% of floating beads, 50% of high alumina bauxite, 10% of clay, and 20% of yellow dextrin solution with a mass percentage of 20%. The mass fraction of the bead component: A1 ₂ 0 ₃ % is 25%, Si0 ₂ % is 65%, and the rest are other components introduced by the raw material.

(1) Ingredients:

High-strength lightweight insulation: Mix the lightweight aggregates in proportion with the binder, then add the powders in proportion and stir for 10 minutes. (2) Forming: After the batching is completed, the size ratio between the heavy working layer and the lightweight heat insulating layer is determined according to the use position, wear rate and service life of the material, and the material cavity of the forming mold is partitioned by the partition according to the ratio. In two parts, after the feeding, the separator is taken out and molded by vibration pressure.

(3) Firing: After the molded body is taken out and dried at 150 ° C, the kiln is fired at 1250 ° C for 3 hours. Example 103: Alkali-resistant structural heat insulation integrated composite brick

More than 1mm focus gemstone 40%

Less than 1mm coke gem 25%

325 mesh quartz powder 19%

325 mesh coke gems 10%

325 mesh Suzhou mud 6%

Plus bonding agent water glass 5%

According to the above ratio, the mass percentage of the obtained heavy working layer component is A1 ₂ 0 _{3 :} 30%, Si0 ₂ : 60%, Fe ₂ 0 ₃ : 1.9%, and the rest are other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer are 5% of ceramsite, 45% of high alumina bauxite, 10% of clay, and 65% by weight of phosphoric acid solution with a mass percentage of 25%, among the ceramsite used. A1 ₂ 0 ₃ component mass percentage: A1 ₂ 0 ₃ % is 18%, Si0 ₂ % is 65%.

(1) Ingredients:

(2) Forming: After the batching is completed, the size ratio between the heavy working layer and the lightweight heat insulating layer is determined according to the use position, wear rate and service life of the material, and the material cavity of the forming mold is partitioned by the partition according to the ratio. In two parts, after the feeding, the separator is taken out and molded by vibration pressure.

(3) Firing: After the molded body is taken out and dried at 120 ° C, the kiln is fired at 1100 ° C for 5 hours. Example 104: Alkali-resistant structural heat-insulating integrated composite brick

Greater than lmm focus gemstone 31%

Greater than lmm pyrophyllite 14

Less than lmm pyrophyllite 30%

325 eye leaf stone 4%

325 mesh quartz powder 15%

325 mesh Suzhou mud 6%

Plus binder aluminum dihydrogen phosphate solution 4%

According to the above ratio, the mass percentage of the obtained heavy working layer component is A1 ₂ 0 _{3 :} 29%, Si0 ₂ : 66%, Fe ₂ 0 ₃ : 1.0%, and the rest are other components introduced by the raw materials.

The raw materials used in the lightweight insulation layer are 15% corundum hollow sphere, 15% floating beads, 20% ceramsite, 40% high alumina bauxite, 10% clay, and 25% by mass concentration. 8 % phosphoric acid solution, which is used in the corundum hollow sphere The mass percentage of the A1 ₂ 0 ₃ component is 97%; the mass percentage of the floating bead component used: A1 ₂ 0 ₃ % is 25%, Si0 ₂ % is 50%, and the rest are other components introduced by the raw materials; A1 ₂ 0 ₃ component mass percentage: A1 ₂ 0 ₃ % is 25%, Si0 ₂ % is 55%%.

(1) Ingredients: The batching process of the heavy working layer is to mix the powder of not more than 325 mesh firstly and then mix it evenly in the ball mill, then add the mixed powder after the other aggregate particles and the binder are evenly mixed. After stirring for 20 minutes, it is ready for use; the light insulation layer is compounded by: the corundum hollow sphere, the floating beads and the ceramsite are mixed uniformly with the aluminum dihydrogen phosphate solution, and then the high alumina bauxite powder and the clay are stirred in proportion. 10 minutes spare.

(3) Firing: After the molded body is taken out and dried at 100 ° C, the kiln is fired at 1300 ° C for 8 hours. Example 105: Magnesium spinel zirconium structure heat insulation integrated composite brick

The heavy working layer is made of DMS98 fused magnesia, ct-Al ₂ 0 ₃ micropowder and monoclinic zirconium powder. The particle gradation and its mass percentage are:

l~3mm sintered magnesia

No more than 1mm fused magnesia

325 mesh fused magnesium powder

325 mesh α-Α1 ₂ 0 ₃ micropowder

325 mesh single oblique zirconium powder

Additive binder pulp waste solution

The mass fraction of the heavy working layer MgO obtained according to the above ratio is 94% A1 ₂ 0 ₃ mass percent is 5%, and Zr0 ₂ mass percent is 0.3%.

The raw materials used in the lightweight insulation layer and the mass percentage are: magnesium aluminum hollow sphere 25%, chrome corundum hollow sphere 30%, 325 mesh spinel micro powder 45%, plus industrial lignosulfonate solution 6%, used The magnesium aluminum hollow sphere has an A1 ₂ 0 ₃ mass percentage of 99.9%, a MgO mass percentage of 0.1%, a chromium hollow sphere component content of 99.9%, and a Cr ₂ 0 ₃ of 0.1%. .

(1) Ingredients:

Heavy working layer: firstly mix the sintered magnesia and fused magnes aggregate particles larger than l~3mm and not more than 1mm with the binder, and then add the powder of no more than 325, stir for 30 minutes and then use;

High-strength lightweight insulation layer: Mix the magnesium-aluminum hollow sphere and the chrome corundum hollow sphere lightweight aggregate in proportion and binder, then add 325 mesh spinel micro-powder in proportion for 10 minutes.

Claims

1. Structural heat-insulating integrated composite brick, which is characterized in that it comprises a heavy working layer prepared by using a dense refractory material as a raw material and a lightweight heat-insulating layer prepared by using light aggregate and powder as raw materials.

2 . The structural heat insulation integrated composite brick according to claim 1 , wherein: the heavy working layer is made of magnesia, magnesia, dolomite, magnesia, magnesium zirconium, magnesium. Zirconium, magnesium aluminate spinel, magnesium spinel zirconium, corundum spinel, corundum, corundum-mullite, zirconium corundum, chrome corundum, mullite, zirconium corundum Stone, high alumina, silicon molybdenum, silicon carbide, clay, high siliceous, forsterite, magnesium aluminum titanium, magnesium titanium or alkali resistant.

The structural heat insulation integrated composite brick according to claim 2, wherein: in the heavy working layer, the mass percentages of various kinds of chemical components are as follows: 1) Magnesium, wherein MgO %≥80%; 2) Magnesium-chromium, wherein MgO% is 25~85%, Cr ₂ 0 ₃ % is 5~30%; 3) Dolomite, wherein MgO% is 40~60%, CaO% is 40 ~55%; 4) Magnesia, wherein MgO% is 64.8~83%, CaO% is 13~30%; 5) Magnesium zirconium, wherein MgO% is 41.5~87%, CaO% is 5~60% , Zr0 ₂ % is 1.5~15%; 6) Magnesium zirconium, wherein MgO%≥90%, Zr0 ₂ % is 1.4~5%; 7) Magnesium aluminum spinel, wherein MgO%≥80%, A1 ₂ 0 ₃ % is 5~10%; 8) magnesium spinel zirconium, wherein MgO% ≥ 80%, A1 ₂ 0 ₃ % is 5~15%, Zr0 ₂ % is 0.7~3%; 9) corundum spinel Stone, wherein Al ₂ O ₃ % ≥ 80%, MgO% is 10 to 20%;

10) corundum, of which Α1 ₂ Ο ₃ %≥90%; 11) corundum-mullite, where Al ₂ 0 ₃ ≥72%, Si0 ₂ % is 5~28%; 12) zirconium corundum, of which Al ₂ O ₃ %>60%, Zr0 ₂ % is 5~30%; 13) chrome corundum, wherein Α1 ₂ Ο ₃ %>60%, Cr ₂ 0 ₃ % is 5~30%; 14) mullite , wherein Al ₂ 0 ₃ % ≥ 65%, Si0 ₂ % >25%; 15) zirconium corundum mullite, wherein A1 ₂ 0 ₃ % is 40-83%, Si0 ₂ % is 12-25%, Zr0 ₂ % is 5~40%; 16) high aluminum, of which A1 ₂ 0 ₃ % is 40%~90%; 17) silicon molybdenum, wherein Α1 ₂ Ο ₃ % ≥ 60%, 8^% is 10~30% 18) silicon carbide, wherein SiC% ≥ 50%; 19) clay, wherein A1 ₂ 0 ₃ % is 30~45%, Si0 ₂ % is 45~65%; 20) high siliceous, wherein SiO ₂ % ≥70%; 21) forsterite, wherein MgO% is 40~50%, Si0 ₂ % is 30~40%; 22) magnesium aluminum titanium, of which A1 ₂ 0 ₃ % _3⁄4 60-70%, MgO% It is 20 to 25%, and Ti0 ₂ % is 5 to 15%. 23) Magnesium-titanium, wherein MgO% ≥ 80%, Ti0 ₂ % is 0.2-11%; 24) alkali resistance, wherein A1 ₂ 0 ₃ is 25~30%, Si0 ₂ : 60-70%, Fe ₂ 0 ₃ : 0-2.0%

The structural heat insulation integrated composite brick according to claim 1 , wherein: the lightweight heat insulation layer aggregate is an alumina hollow sphere, a magnesium aluminum hollow sphere, a corundum hollow sphere, an aluminum calcium hollow sphere, Magnesium aluminum calcium hollow sphere, aluminum titanium hollow sphere, magnesium calcium hollow sphere, magnesium chromium hollow sphere, chrome corundum hollow sphere, zirconium corundum hollow sphere, magnesium titanium hollow sphere, magnesium oxide hollow sphere, calcium oxide hollow sphere, light moiré One or more mixtures of stone aggregates, lightweight high alumina aggregates, floating beads, lightweight ceramsite.

The structural heat insulation integrated composite brick according to claim 4, wherein: in the lightweight heat insulation layer, the mass percentage of various types of lightweight aggregate chemical components is as follows: 1) oxidation Aluminum hollow spheres, wherein A1 ₂ 0 _{3 is} greater than 98%; 2) magnesium aluminum hollow spheres, wherein A1 ₂ 0 ₃ is 0.1 to 99.9%, MgO is 0.1 to 99.9%; 3) corundum hollow spheres, wherein A1 ₂ 0 _{3 is} larger than 93%; 4) aluminum-calcium hollow spheres, wherein A1 ₂ 0 ₃ is 0.1 to 99.9%, CaO is 0.1 to 99.9%; 5) magnesium aluminum calcium hollow spheres, wherein CaO is 0.01-99.9%, and A1 ₂ 0 ₃ is 0.01 ~99.9%, MgO is 0.01-99.9%; 6) aluminum-titanium hollow spheres, wherein A1 ₂ 0 ₃ is 40-99.9%, Ti0 ₂ is 0.1-60%; 7) magnesium-calcium hollow spheres, wherein CaO is 0.1~99.9 %, MgO is 0.1 to 99.9%; 8) magnesium chromium hollow spheres, wherein MgO is 70 to 99.9%, Cr ₂ 0 ₃ is 0.1 to 30%; 9) chrome corundum hollow spheres, wherein A1 ₂ 0 ₃ is 70 to 99.9 %, Cr ₂ 0 ₃ is 0.1~30%; 10) zirconium corundum hollow sphere, wherein A1 ₂ 0 ₃ is 90~99.9%, Zr0 ₂ is 0.1~10%;

11) magnesium titanium hollow spheres, wherein MgO is 90 to 99.9%, Ti0 ₂ is 0.1 to 10%; 12) magnesium oxide hollow spheres, wherein MgO is greater than 95%; 13) calcium oxide hollow spheres, CaO is greater than 95%; Light mullite aggregate, wherein A1 ₂ 0 _{3 is} greater than 65%; 15) lightweight high-alumina aggregate, wherein A1 ₂ 0 _{3 is} greater than 70%; 16) floating beads, wherein A1 ₂ 0 ₃ % is 25~40%, Si0 ₂ % is 50~65%; 17) Light ceramsite , wherein A1 ₂ 0 ₃ % is 18 to 25%, and Si0 ₂ % is 55 to 65%.

6. The method for preparing a structural heat insulation integrated composite brick according to claim 1, wherein: the steps are as follows:

(1) Heavy working layer ingredients:

(2) Light insulation layer ingredients:

(3) Forming:

After the batching is completed, the material cavity of the forming mold is partitioned into two parts by a partition plate, and the length ratio of the dense working layer and the light heat insulating layer is 1 to 5: 3 to 1, and the separator is taken out after the feeding, and the vibration is pressurized. Or machine molding;

(4) firing:

7. The method for preparing a structural heat insulation integrated composite brick according to claim 6, wherein:

In the step (3), the molding process is performed on a vibration press, a friction press or a hydraulic press.

The method for preparing a structural heat insulation integrated composite brick according to claim 6 or 7, wherein in the step (1), according to the mass percentage, the raw material particle gradation used in the heavy working layer is not Less than lmm particles 35~45%, less than lmm particles 25~35%, no more than 325 mesh fine powder 25~35%, plus binder 3~5%; firstly mix no more than 325 mesh powder in the batching After mixing in the ball mill, the mixed aggregates are added after the other aggregate particles are uniformly mixed with the external binder, and the stirring time is 10 to 30 minutes.

The method for preparing a structural heat insulation integrated composite brick according to claim 6 or 7, wherein: in the step (2), the lightweight aggregate layer used in the lightweight heat insulation layer path ^3, in percentage by mass, light weight insulating material layer lightweight aggregate mass ratio of 55~70%, no greater than 325 mesh powder is 30~45 0.2~5mm, natural bulk density 0.3~1.0g / cm %, plus binder is 6~10%. In the batching, the lightweight aggregate is firstly mixed with the added binder, and then the powder is added in proportion, and the stirring time is 10~30 minutes.

The method for preparing a structural heat insulation integrated composite brick according to claim 6, wherein: the external binder used is yellow dextrin, water glass, phosphoric acid solution, aluminum dihydrogen phosphate solution, aluminum Glue, silica gel, aluminum sulfate solution, pulp waste, lignosulfonate solution, methylcellulose solution or liquid paraffin.