CN107663095A - A kind of clay insulating refractory block NG130 1.0 and preparation method thereof - Google Patents

A kind of clay insulating refractory block NG130 1.0 and preparation method thereof Download PDF

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CN107663095A
CN107663095A CN201610606608.8A CN201610606608A CN107663095A CN 107663095 A CN107663095 A CN 107663095A CN 201610606608 A CN201610606608 A CN 201610606608A CN 107663095 A CN107663095 A CN 107663095A
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powder
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refractory block
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CN107663095B (en
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吕风雷
吕科利
苗承阳
段阳阳
赵更金
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Lianyuan Jiyuan Furnace Industry Co Ltd
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    • C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient

Abstract

A kind of clay insulating refractory block NG130 1.0 and preparation method thereof, is related to refractory material manufacturing technology field, and the clay insulating refractory block is made up of the raw material of following parts by weight：20 30 parts of closed perlite, 10 20 parts of high alumina superfine powder, 10 15 parts of kaolin, 10 15 parts of bauxite, 10 15 parts of alumina powder, 10 15 parts of mixed powder, 12 14 parts of water.The raw material of the present invention uses the raw material of high refractoriness, and clay insulating refractory block NG130 1.0 is made by dispensing, batch mixing, base, firing etc. according to a certain percentage in raw material, this refractory brick production cost is low, cold crushing strength is high, thermal conductivity factor is small, and the permanent line changing value of bulk density, heating-up temperature and soaking time is within value range as defined in GB/T3994 2013.

Description

A kind of clay insulating refractory block NG130-1.0 and preparation method thereof
Technical field
The present invention relates to refractory material manufacturing technology field, more particularly to a kind of clay insulating refractory block NG130-1.0 And preparation method thereof.
Background technology
The production technology of clay insulating refractory block, the method that the country generally uses is the half-dried method of forming, due to each production Business is raw materials used, the difference and the difference of high temperature firing temperature and soaking time of material, and the product of 96% manufacturer, heating is forever Long Linear change rate index is unqualified（GB/T3994-2013 criterions are not reached）.The main reason for causing such a situation be Firing temperature is not up to the heating permanent line transformation temperature or soaking time deficiency at this temperature of insulating brick, and finished product detection When to be incubated 12h at an established temperature, if detection temperature and soaking time be higher than product firing temperature and soaking time, The heating permanent line change increase of insulating brick just occurs, particularly shrinkage factor increases, so as to not reach the technical indicator of national standard Requirement.
Thus want that the permanent Linear change rate of heating of insulating brick is qualified, just have to improve insulating brick firing temperature and Soaking time at such a temperature, it could not shrink under defined high temperature firing temperature and heat-retaining condition or shrinkage value be small, no Deformation, finally meet that national standard heats the index request of permanent Linear change rate.
The content of the invention
The present invention is in order to solve the shortcomings that above-mentioned prior art, there is provided a kind of clay insulating refractory block NG130-1.0 And preparation method thereof, the permanent line change of finished bricks bulk density, heating-up temperature and soaking time that the preparation method is produced Value can be within value range as defined in GB/T3994-2013, and its cold crushing strength and thermal conductivity factor index can reach state Mark standard.
What the present invention was realized in：A kind of clay insulating refractory block NG130-1.0, by the raw material group of following parts by weight Into：Closed perlite 20-30 parts, high alumina superfine powder 10-20 parts, kaolin 10-15 parts, bauxite 10-15 parts, alumina powder 10-15 parts, mixed powder 10-15 parts, water 12-14 parts.
The aluminum oxide that active ingredient in described mixed powder is 55%, 8% silica, 1.4% iron oxide, 26% Calcium oxide, remaining is impurity.
Described closed pore pearl powder granularity is less than 1.2mm, and high alumina superfine powder is 600 mesh, and kaolin is 180 mesh, aluminium alum Soil is 180 mesh, and the mesh of alumina powder 600, mixed powder is 260 mesh.
A kind of described clay insulating refractory block NG130-1.0 preparation method, comprises the following steps：（1）By raw material Mix in proportion, be transported to mixing and blending machine, material stock storehouse is entered after mixing；（2）The raw material mixed in material stock storehouse enters It is molded in brick machine, the pressure of brick machine is 80 tons；（3）Compressing brick is transported in tunnel cave and fires 5-6h, kilneye Temperature is 60 DEG C, and kiln temperature is 1000 DEG C -1200 DEG C；（4）Finished product selection vanning storage.
Relative to prior art, the beneficial effects of the invention are as follows：
The raw material of the present invention uses the raw material of high refractoriness, and by raw material according to a certain percentage by dispensing, batch mixing, base, burning Clay insulating refractory block NG130-1.0 is made in system etc., and this refractory brick production cost is low, and cold crushing strength is high, heat conduction system Number is small, the permanent line changing value of bulk density, heating-up temperature and soaking time value range as defined in GB/T3994-2013 with It is interior.
Embodiment
Embodiment 1
A kind of clay insulating refractory block NG130-1.0, is made up of the raw material of following parts by weight：Closed perlite 20-30 parts, it is high Aluminium superfine powder 10-20 parts, kaolin 10-15 parts, bauxite 10-15 parts, alumina powder 10-15 parts, mixed powder 10-15 Part, water 12-14 parts.
The aluminum oxide that active ingredient in described mixed powder is 55%, 8% silica, 1.4% iron oxide, 26% Calcium oxide, remaining is impurity.
Described closed pore pearl powder granularity is less than 1.2mm, and high alumina superfine powder is 600 mesh, and kaolin is 180 mesh, aluminium alum Soil is 180 mesh, and the mesh of alumina powder 600, mixed powder is 260 mesh.
A kind of described clay insulating refractory block NG130-1.0 preparation method, comprises the following steps：（1）By raw material Mix in proportion, be transported to mixing and blending machine, material stock storehouse is entered after mixing；（2）The raw material mixed in material stock storehouse enters It is molded in brick machine, the pressure of brick machine is 80 tons；（3）Compressing brick is transported in tunnel cave and fires 5-6h, kilneye Temperature is 60 DEG C, and kiln temperature is 1000 DEG C -1200 DEG C；（4）Finished product selection vanning storage.
Embodiment 2
A kind of clay insulating refractory block NG130-1.0, is made up of the raw material of following parts by weight：Closed perlite 23-28 parts, it is high Aluminium superfine powder 12-18 parts, kaolin 11-14 parts, bauxite 11-14 parts, alumina powder 11-14 parts, mixed powder 11-14 Part, water 12-13 parts.
The aluminum oxide that active ingredient in described mixed powder is 55%, 8% silica, 1.4% iron oxide, 26% Calcium oxide, remaining is impurity.
Described closed pore pearl powder granularity is less than 1.2mm, and high alumina superfine powder is 600 mesh, and kaolin is 180 mesh, aluminium alum Soil is 180 mesh, and the mesh of alumina powder 600, mixed powder is 260 mesh.
A kind of described clay insulating refractory block NG130-1.0 preparation method, comprises the following steps：（1）By raw material Mix in proportion, be transported to mixing and blending machine, material stock storehouse is entered after mixing；（2）The raw material mixed in material stock storehouse enters It is molded in brick machine, the pressure of brick machine is 80 tons；（3）Compressing brick is transported in tunnel cave and fires 5-6h, kilneye Temperature is 60 DEG C, and kiln temperature is 1050 DEG C -1150 DEG C；（4）Finished product selection vanning storage.
Embodiment 3
A kind of clay insulating refractory block NG130-1.0, is made up of the raw material of following parts by weight：25 parts of closed perlite, high alumina 15 parts of superfine powder, 13 parts of kaolin, 13 parts of bauxite, 13 parts of alumina powder, 13 parts of mixed powder, 13 parts of water.
The aluminum oxide that active ingredient in described mixed powder is 55%, 8% silica, 1.4% iron oxide, 26% Calcium oxide, remaining is impurity.
Described closed pore pearl powder granularity is less than 1.2mm, and high alumina superfine powder is 600 mesh, and kaolin is 180 mesh, aluminium alum Soil is 180 mesh, and the mesh of alumina powder 600, mixed powder is 260 mesh.
A kind of described clay insulating refractory block NG130-1.0 preparation method, comprises the following steps：（1）By raw material Mix in proportion, be transported to mixing and blending machine, material stock storehouse is entered after mixing；（2）The raw material mixed in material stock storehouse enters It is molded in brick machine, the pressure of brick machine is 80 tons；（3）Compressing brick is transported in tunnel cave and fires 5.5h, kilneye Temperature is 60 DEG C, and kiln temperature is 1100 DEG C；（4）Finished product selection vanning storage.
Embodiment 4
A kind of clay insulating refractory block NG130-1.0, is made up of the raw material of following parts by weight：20 parts of closed perlite, high alumina 10 parts of superfine powder, 10 parts of kaolin, 10 parts of bauxite, 10 parts of alumina powder, 10 parts of mixed powder, 12 parts of water.
The aluminum oxide that active ingredient in described mixed powder is 55%, 8% silica, 1.4% iron oxide, 26% Calcium oxide, remaining is impurity.
Described closed pore pearl powder granularity is less than 1.2mm, and high alumina superfine powder is 600 mesh, and kaolin is 180 mesh, aluminium alum Soil is 180 mesh, and the mesh of alumina powder 600, mixed powder is 260 mesh.
A kind of described clay insulating refractory block NG130-1.0 preparation method, comprises the following steps：（1）By raw material Mix in proportion, be transported to mixing and blending machine, material stock storehouse is entered after mixing；（2）The raw material mixed in material stock storehouse enters It is molded in brick machine, the pressure of brick machine is 80 tons；（3）Compressing brick is transported in tunnel cave and fires 5h, kilneye temperature Spend for 60 DEG C, kiln temperature is 1000 DEG C；（4）Finished product selection vanning storage.
Embodiment 5
A kind of clay insulating refractory block NG130-1.0, is made up of the raw material of following parts by weight：30 parts of closed perlite, high alumina 20 parts of superfine powder, 15 parts of kaolin, 15 parts of bauxite, 15 parts of alumina powder, 15 parts of mixed powder, 14 parts of water.
The aluminum oxide that active ingredient in described mixed powder is 55%, 8% silica, 1.4% iron oxide, 26% Calcium oxide, remaining is impurity.
Described closed pore pearl powder granularity is less than 1.2mm, and high alumina superfine powder is 600 mesh, and kaolin is 180 mesh, aluminium alum Soil is 180 mesh, and the mesh of alumina powder 600, mixed powder is 260 mesh.
A kind of described clay insulating refractory block NG130-1.0 preparation method, comprises the following steps：（1）By raw material Mix in proportion, be transported to mixing and blending machine, material stock storehouse is entered after mixing；（2）The raw material mixed in material stock storehouse enters It is molded in brick machine, the pressure of brick machine is 80 tons；（3）Compressing brick is transported in tunnel cave and fires 6h, kilneye temperature Spend for 60 DEG C, kiln temperature is 1200 DEG C；（4）Finished product selection vanning storage.
Embodiment 6
A kind of clay insulating refractory block NG130-1.0, is made up of the raw material of following parts by weight：23 parts of closed perlite, high alumina 12 parts of superfine powder, 11 parts of kaolin, 11 parts of bauxite, 11 parts of alumina powder, 11 parts of mixed powder, 12 parts of water.
The aluminum oxide that active ingredient in described mixed powder is 55%, 8% silica, 1.4% iron oxide, 26% Calcium oxide, remaining is impurity.
Described closed pore pearl powder granularity is less than 1.2mm, and high alumina superfine powder is 600 mesh, and kaolin is 180 mesh, aluminium alum Soil is 180 mesh, and the mesh of alumina powder 600, mixed powder is 260 mesh.
A kind of described clay insulating refractory block NG130-1.0 preparation method, comprises the following steps：（1）By raw material Mix in proportion, be transported to mixing and blending machine, material stock storehouse is entered after mixing；（2）The raw material mixed in material stock storehouse enters It is molded in brick machine, the pressure of brick machine is 80 tons；（3）Compressing brick is transported in tunnel cave and fires 5h, kilneye temperature Spend for 60 DEG C, kiln temperature is 1050 DEG C；（4）Finished product selection vanning storage.
Embodiment 7
A kind of clay insulating refractory block NG130-1.0, is made up of the raw material of following parts by weight：28 parts of closed perlite, high alumina 18 parts of superfine powder, 14 parts of kaolin, 14 parts of bauxite, 14 parts of alumina powder, 14 parts of mixed powder, 13 parts of water.
The aluminum oxide that active ingredient in described mixed powder is 55%, 8% silica, 1.4% iron oxide, 26% Calcium oxide, remaining is impurity.
Described closed pore pearl powder granularity is less than 1.2mm, and high alumina superfine powder is 600 mesh, and kaolin is 180 mesh, aluminium alum Soil is 180 mesh, and the mesh of alumina powder 600, mixed powder is 260 mesh.
A kind of described clay insulating refractory block NG130-1.0 preparation method, comprises the following steps：（1）By raw material Mix in proportion, be transported to mixing and blending machine, material stock storehouse is entered after mixing；（2）The raw material mixed in material stock storehouse enters It is molded in brick machine, the pressure of brick machine is 80 tons；（3）Compressing brick is transported in tunnel cave and fires 6h, kilneye temperature Spend for 60 DEG C, kiln temperature is 1150 DEG C；（4）Finished product selection vanning storage.
Other embodiment
A kind of clay insulating refractory block NG130-1.0, the raw material composition of parts by weight as shown in Table 1：
Table 1
The aluminum oxide that active ingredient in described mixed powder is 55%, 8% silica, 1.4% iron oxide, 26% oxidation Calcium, remaining is impurity.
Described closed pore pearl powder granularity is less than 1.2mm, and high alumina superfine powder is 600 mesh, and kaolin is 180 mesh, aluminium alum Soil is 180 mesh, and the mesh of alumina powder 600, mixed powder is 260 mesh.
A kind of described clay insulating refractory block NG130-1.0 preparation method, comprises the following steps：
Table 2
Implemented the steps of according to the embodiment any combination of each variable in table 2：
（1）Raw material is mixed in proportion, mixing and blending machine is transported to, material stock storehouse is entered after mixing；（2）Material stock mixes in storehouse Raw material enter in brick machine and be molded, the pressure of brick machine is 80 tons；（3）Compressing brick is transported in tunnel cave and burnt 5-6h processed, kilneye temperature are 60 DEG C, and kiln temperature is 1000 DEG C -1200 DEG C；（4）Finished product selection vanning storage.
Experimental example
The physical and chemical index of raw material is as shown in table 3：
Table 3
After measured, the performance indications of embodiment 3,4,5,6,7 are as shown in table 4：
Table 4.

Claims (4)

  1. A kind of 1. clay insulating refractory block NG130-1.0, it is characterised in that：It is made up of the raw material of following parts by weight：Closed pore is precious Pearl rock 20-30 parts, high alumina superfine powder 10-20 parts, kaolin 10-15 parts, bauxite 10-15 parts, alumina powder 10-15 parts, Mixed powder 10-15 parts, water 12-14 parts.
  2. 2. clay insulating refractory block NG130-1.0 according to claim 1, it is characterised in that：In described mixed powder Active ingredient be 55% aluminum oxide, 8% silica, 1.4% iron oxide, 26% calcium oxide, remaining is impurity.
  3. 3. clay insulating refractory block NG130-1.0 according to claim 1, it is characterised in that：Described closed pore pearl Powder particles degree is less than 1.2mm, and high alumina superfine powder is 600 mesh, and kaolin is 180 mesh, and bauxite is 180 mesh, alumina powder 600 Mesh, mixed powder are 260 mesh.
  4. 4. a kind of any described clay insulating refractory block NG130-1.0 of claim 1-3 preparation method, its feature exist In：Comprise the following steps：（1）Raw material is mixed in proportion, mixing and blending machine is transported to, material stock storehouse is entered after mixing；（2）Deposit The raw material mixed in feed bin is entered in brick machine and is molded, and the pressure of brick machine is 80 tons；（3）Compressing brick is transported 5-6h is fired into tunnel cave, kilneye temperature is 60 DEG C, and kiln temperature is 1000 DEG C -1200 DEG C；（4）Finished product selection case into Storehouse.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108409341A (en) * 2018-04-04 2018-08-17 江苏苏嘉集团新材料有限公司 A kind of refractory brick and preparation method thereof

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CN101215176A (en) * 2007-12-28 2008-07-09 中国钢研科技集团公司 High-strength low heat conductivity energy-saving fireproof material
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Denomination of invention: A clay insulating refractory brick NG130-1.0 and its preparation method

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