CN114380609A - Refractory material for deacidification furnace refractory layer and preparation method thereof - Google Patents

Refractory material for deacidification furnace refractory layer and preparation method thereof Download PDF

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CN114380609A
CN114380609A CN202210156927.9A CN202210156927A CN114380609A CN 114380609 A CN114380609 A CN 114380609A CN 202210156927 A CN202210156927 A CN 202210156927A CN 114380609 A CN114380609 A CN 114380609A
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refractory
heat insulation
vacuum heat
light
insulation plate
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张�林
刘忠珍
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Jiangsu Langnaide Refractory Co ltd
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Jiangsu Langnaide Refractory Co ltd
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/66Monolithic refractories or refractory mortars, including those whether or not containing clay
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3427Silicates other than clay, e.g. water glass
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/349Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/42Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
    • C04B2235/422Carbon
    • C04B2235/425Graphite
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/44Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
    • C04B2235/442Carbonates
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/60Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/606Drying

Abstract

The invention relates to the technical field of refractory materials, and discloses a refractory material for a refractory layer of a deacidification furnace, wherein the first vacuum heat insulation plate and the second vacuum heat insulation plate are both in a shape of '21274', the opening parts of the first vacuum heat insulation plate and the second vacuum heat insulation plate are both provided with sawtooth-shaped installation blocks with matched shapes, light refractory bricks are paved in the inner cavities of the first vacuum heat insulation plate and the second vacuum heat insulation plate, light high-aluminum liquid is poured in the gap between the light refractory bricks, the light refractory bricks are paved in the inner cavities of the additionally arranged vacuum heat insulation plates, the two sawtooth-shaped installation blocks with matched shapes of the vacuum heat insulation plates are clamped with each other to form a stable reversed-square-shaped structure, then the light high-aluminum liquid is poured in the gap between the two light refractory bricks to form a refractory material finished product, so that the refractory material can be firmly installed together, and the heat insulation material can not be separated under the influence of high temperature under the high-temperature working state, making the refractory layer difficult to damage.

Description

Refractory material for deacidification furnace refractory layer and preparation method thereof
Technical Field
The invention relates to the technical field of refractory materials, in particular to a refractory material for a deacidification furnace refractory layer and a preparation method thereof.
Background
The refractoriness is the temperature in centigrade which resists the high temperature action without softening and melting down under the condition of no load, but the refractoriness is only defined as the refractoriness, the refractory material cannot be completely described, the temperature of 1580 ℃ is not absolute, the material which is allowed to be used under the high temperature environment by the physical and chemical properties is defined as the refractory material, the refractory material is widely used in the industrial fields of metallurgy, chemical industry, petroleum, mechanical manufacturing, silicate, power and the like, and the use amount of the refractory material in the metallurgical industry is the largest and accounts for 50% -60% of the total output.
The common fire-resistant layer generally takes a vacuum heat-insulating plate as a base, then the light refractory bricks are laid on the surface of the vacuum heat-insulating plate, and finally light high-aluminum liquid is poured on the surface of the light refractory bricks, but the fire-resistant materials are combined and installed by adopting the method, so that the connection between the materials is unstable, the materials are easily separated from each other under the influence of high temperature in use, the fire-resistant layer is easily damaged in work, the service life of the fire-resistant layer is shortened, and the working requirements of the fire-resistant materials cannot be met, so that the fire-resistant material for the fire-resistant layer of the deacidification furnace and the preparation method thereof are provided.
Disclosure of Invention
The technical problem to be solved by the invention is
Aiming at the defects of the prior art, the invention provides a refractory material for a deacidification furnace refractory layer and a preparation method thereof, and aims to solve the problems in the background art.
The technical scheme of the invention is that
The utility model provides a refractory material that deacidification stove flame retardant coating was used, includes first vacuum heat insulating board, the top lid of first vacuum heat insulating board is equipped with second vacuum heat insulating board, first vacuum heat insulating board and the whole shape of second vacuum heat insulating board are \21274, and the shape is installed for the opening between the two relatively, and the opening position all sets up the installation piece of the cockscomb structure of shape looks adaptation, light resistant firebrick has all been laid with the inner chamber of second vacuum heat insulating board to first vacuum heat insulating board, pour the high aluminium liquid of light in the gap between the light resistant firebrick.
A preparation method of a refractory material for a refractory layer of a deacidification furnace comprises the following steps:
s1 preparation of vacuum insulation board
S101, performing operation of a plate;
selecting a filling core material and a vacuum protection surface material, and compounding the filling core material and the vacuum protection surface material into a plate shape by adopting a bonding and pressing mode;
s102, performing final forming operation on the plate;
placing the plate-shaped raw material into a mold, pressing the plate-shaped raw material into Contraband type through a hot pressing machine, and pressing saw-toothed mounting blocks at the opening in a pressure-sharing manner;
s2 preparation of light refractory brick
S201, calcining raw materials:
firstly, preheating clay, high-alumina bauxite and the like, and then calcining;
s202, raw material processing:
sorting, crushing and smashing, finely grinding and screening raw materials;
s203, preparing mud materials:
mixing materials, mixing and ageing, wherein the materials are mixed according to the weight of various materials and the proper proportion of particle compositions;
s204, blank forming:
forming the blank under the action of external force to obtain a compact blank with a certain shape and size from loose pug;
s205, firing of finished products:
and (3) drying the green body, and calcining at high temperature to obtain the light refractory brick.
S3 combined installation of refractory materials
S301, firstly, selecting two vacuum heat insulation plates which are matched with each other, and then paving light refractory bricks in inner cavities of the two vacuum heat insulation plates;
s302, mutually clamping two saw-toothed mounting blocks with matched vacuum insulation boards in shape to form a stable square-back structure;
s303, finally pouring the light high-aluminum liquid into a gap between the two light refractory bricks to form a refractory material finished product.
Preferably, the clay and the bauxite are placed into a rotary kiln, the temperature in the rotary kiln is heated to 1350-1550 ℃, the calcination is carried out for 6-8 hours, and the temperature is controlled to 1350-1550 ℃ so as to ensure that the calcined clay and the calcined bauxite have high quality.
Preferably, the impurities, unburnt fuel blocks and clinker blocks mixed after calcination are selected out to prevent the surface of the refractory material from being raised more to influence the aesthetic property of the refractory material, and meanwhile, the impurities and the unburnt fuel blocks are not arranged on the surface of the calcined product and cannot be ignited when meeting flame.
Preferably, the specific method of mixing is as follows: mixing the refractory clay, siliceous raw materials, dolomite, magnesite, graphite and pyrophyllite, wherein the proportion of the refractory clay, the siliceous raw materials, the dolomite, the magnesite, the graphite and the pyrophyllite is 3.2: 1: 1.2: 1.3: 1.51: 1.5.
preferably, the molding method comprises: the injection method, the plastic method, the semi-dry method, the fusion casting method and the isostatic pressing method are generally used for machine pressing and molding by the semi-dry method, main equipment for machine pressing and molding comprises various friction brick machines, lever brick machines, rotary brick machines, high-pressure hydraulic presses and the like, and large and special products can be molded by vibration molding, air hammer tamping or manual tamping, so that workers can conveniently mold and manufacture refractory materials.
Preferably, the drying process parameters are as follows: the temperature is 29-34 ℃, the humidity is 65-80%, and the calcining process parameters are as follows: the temperature is 900-1000 ℃, and the time is about 1-2 hours.
Preferably, the first vacuum insulation panel and the second vacuum insulation panel are matched in position and size of the corresponding mounting blocks, and the mounting blocks are meshed with each other through a serrated connecting port.
Preferably, a gap is reserved between the first vacuum heat insulation plate and the second vacuum heat insulation plate, and the shape of the gap is cuboid and matched with the position and size of the light refractory brick.
The invention has the beneficial effects that:
this refractory material that deacidification stove flame retardant coating was used, add the inner chamber of the vacuum heat insulating board of establishing and all lay light firebrick, the mutual joint of installation piece of the cockscomb structure of two vacuum heat insulating board shape looks adaptations, form stable back font structure, pour the high aluminium liquid of light in the gap between two light firebricks, form the refractory material finished product, make the installation that refractory material can be firm together, under high temperature operating condition, thermal insulation material can not receive the influence of high temperature and take place to break away from, make the flame retardant coating be difficult to take place to damage, the life of the device is prolonged.
Drawings
FIG. 1 is a schematic view illustrating an installation structure of a first vacuum insulation panel and a second vacuum insulation panel according to the present invention;
FIG. 2 is a schematic view of the present invention showing the construction of a first vacuum insulation panel;
FIG. 3 is a schematic view of the present invention showing the construction of a second vacuum insulation panel;
FIG. 4 is a general flow chart of a method of making a refractory designed according to this invention;
FIG. 5 is a flow chart illustrating the fabrication of a vacuum insulation panel according to the present invention;
FIG. 6 is a flow chart of the present invention for the preparation of a light weight refractory brick;
FIG. 7 is a flow chart of the present invention for designing a refractory aggregate installation.
In the figure: 1. a first vacuum insulation panel; 2. a second vacuum insulation panel; 3. mounting blocks; 4. light refractory bricks; 5. light high-aluminum liquid.
Detailed Description
The technical solutions in the design embodiments of the present invention will be clearly and completely described below with reference to the drawings in the design embodiments of the present invention, and it is obvious that the described embodiments are only a part of the design embodiments of the present invention, and not all of the design embodiments of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the design of the present invention without any creative effort belong to the protection scope of the design of the present invention.
Example 1
The invention provides a technical scheme, a refractory material for a fire-resistant layer of a deacidification furnace comprises a first vacuum heat-insulating plate 1, a second vacuum heat-insulating plate 2, a mounting block 3, a light refractory brick 4 and a light high-aluminum liquid 5, wherein referring to a figure 1, the second vacuum heat-insulating plate 2 is covered above the first vacuum heat-insulating plate 1, referring to figures 2 and 3, the specifications of the first vacuum heat-insulating plate 1 and the second vacuum heat-insulating plate 2 are the same, the directions of the first vacuum heat-insulating plate 1 and the second vacuum heat-insulating plate 2 are opposite, the integral shapes of the first vacuum heat-insulating plate 1 and the second vacuum heat-insulating plate 2 are 212', an opening is oppositely arranged between the first vacuum heat-insulating plate 1 and the second vacuum heat-insulating plate 2, a saw-toothed mounting block 3 with matched shapes is arranged at the opening part, referring to figure 1, the light refractory bricks 4 are laid in inner cavities of the first vacuum heat-insulating plate 1 and the second vacuum heat-insulating plate 2, the light high-aluminum liquid 5 is poured in a gap between the light refractory bricks 4, the position of the corresponding installation block 3 of the first vacuum heat insulation board 1 and the second vacuum heat insulation board 2, the size are matched, the installation blocks 3 are meshed with each other through a serrated connection port, a gap is reserved between the first vacuum heat insulation board 1 and the second vacuum heat insulation board 2, and the gap is cuboid and matched with the position and the size of the light refractory brick 4.
Example 2
This example describes a method for producing the refractory for the refractory layer of the deacidification furnace in example 1, including the steps of:
referring to fig. 4 of the drawings, a schematic diagram of a display device,
s1 preparation of vacuum insulation panel (please refer to FIG. 5)
S101, performing operation of a plate;
selecting a filling core material and a vacuum protection surface material, and compounding the filling core material and the vacuum protection surface material into a plate shape by adopting a bonding and pressing mode;
s102, performing final forming operation on the plate;
placing the plate-shaped raw material into a mold, pressing the plate-shaped raw material into Contraband type through a hot pressing machine, and pressing saw-toothed mounting blocks at the opening in a pressure-sharing manner;
referring to fig. 6 of the drawings, a schematic diagram of a drawing,
s2 preparation of light refractory brick 4
S201, calcining raw materials:
preheating clay, bauxite and the like, then calcining, putting the clay and bauxite into a rotary kiln, heating the rotary kiln to 1350 ℃, calcining for 6 hours, and controlling the temperature to 1350 ℃ to ensure that the calcined clay and bauxite have high quality;
s202, raw material processing:
sorting, crushing and smashing the raw materials, finely grinding and screening the raw materials, and sorting out impurities mixed after calcination, unburnt fuel blocks and clinker blocks so as to prevent the surface of the refractory material from being protruded more to influence the aesthetic property of the refractory material, and simultaneously, the impurities and the unburnt fuel blocks are not arranged on the surface of the calcined product and cannot be ignited when meeting flame;
s203, preparing mud materials:
the method comprises the following steps of proportioning, mixing and ageing, wherein the proportioning is carried out according to the weight of various materials and the proper proportion of particle compositions, and the mixing method comprises the following specific steps: mixing the refractory clay, siliceous raw materials, dolomite, magnesite, graphite and pyrophyllite, wherein the proportion of the refractory clay, the siliceous raw materials, the dolomite, the magnesite, the graphite and the pyrophyllite is 3.2: 1: 1.2: 1.3: 1.51: 1.5;
s204, blank forming:
the blank is shaped by means of external force, so that loose pug obtains a compact blank with certain shape and size, and the shaping method comprises the following steps: the main equipment of the mechanical pressing forming comprises various friction brick machines, lever brick machines, rotary brick machines, high-pressure hydraulic presses and the like, and for large and special products, vibration forming, air hammer tamping or manual tamping forming can be adopted, so that workers can conveniently form and manufacture refractory materials;
s205, firing of finished products:
and (3) drying the green body, and calcining the green body at high temperature to obtain the light refractory brick 4, wherein the drying process parameters are as follows: the temperature is 29 ℃, the humidity is 65%, and the calcining process parameters are as follows: temperature 900 deg.c for about 1 hour.
Referring to fig. 7 of the drawings, a drawing,
s3 combined installation of refractory materials
S301, firstly, selecting two vacuum heat insulation plates which are matched with each other, and then paving light refractory bricks 4 in inner cavities of the two vacuum heat insulation plates;
s302, mutually clamping two saw-toothed mounting blocks 3 with matched vacuum insulation boards in shape to form a stable square-back structure;
s303, pouring the light high-aluminum liquid 5 into a gap between the two light refractory bricks 4 to form a refractory material finished product, so that the refractory material can be firmly installed together, and under a high-temperature working state, the heat insulation material cannot be separated from the refractory material due to the influence of high temperature, the refractory layer is difficult to damage, and the service life of the device is prolonged.
Example 3
This example differs from example 2 in that:
s201, calcining raw materials:
the clay and the bauxite are preheated and then calcined, the clay and the bauxite are placed into a rotary kiln, the temperature in the rotary kiln is heated to 1450 ℃, the calcination is carried out for 7 hours, and the temperature is controlled to 1450 ℃, so that the calcined clay and the calcined bauxite have high quality.
S205, firing of finished products:
and (3) drying the green body, and calcining the green body at high temperature to obtain the light refractory brick 4, wherein the drying process parameters are as follows: the temperature is 31 ℃, the humidity is 70%, and the calcining process parameters are as follows: the temperature was 950 ℃ and the time was 1.5 hours.
Example 4
This example differs from example 2 in that:
s201, calcining raw materials:
the clay and the bauxite are preheated and then calcined, the clay and the bauxite are placed into a rotary kiln, the temperature in the rotary kiln is heated to 1550 ℃, the calcination is carried out for 8 hours, and the temperature is controlled to 1550 ℃ so as to ensure that the calcined clay and the calcined bauxite have high quality.
S205, firing of finished products:
and (3) drying the green body, and calcining the green body at high temperature to obtain the light refractory brick 4, wherein the drying process parameters are as follows: the temperature is 34 ℃, the humidity is 80%, and the calcining process parameters are as follows: the temperature was 1000 ℃ and the time was about 2 hours.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. A refractory material for a refractory layer of a deacidification furnace, comprising a first vacuum insulation panel (1), characterized in that: the heat insulation structure is characterized in that a second vacuum heat insulation plate (2) is covered above the first vacuum heat insulation plate (1), the first vacuum heat insulation plate (1) and the second vacuum heat insulation plate (2) are both in a shape of '21274', the two are oppositely installed through an opening, installation blocks (3) of saw-toothed shapes matched in shape are arranged at the opening, light refractory bricks (4) are paved in inner cavities of the first vacuum heat insulation plate (1) and the second vacuum heat insulation plate (2), and light high-aluminum liquid (5) is poured in gaps between the light refractory bricks (4).
2. The method for preparing the refractory material for the refractory layer of the deacidification furnace according to the claim 1, characterized by comprising the following steps:
s1 preparation of vacuum insulation board
S101, performing operation of a plate;
selecting a filling core material and a vacuum protection surface material, and compounding the filling core material and the vacuum protection surface material into a plate shape by adopting a bonding and pressing mode;
s102, performing final forming operation on the plate;
placing the plate-shaped raw material into a mold, pressing the plate-shaped raw material into Contraband type through a hot pressing machine, and pressing saw-toothed mounting blocks at the opening in a pressure-sharing manner;
s2 preparation of light refractory brick (4)
S201, calcining raw materials:
firstly, preheating clay, high-alumina bauxite and the like, and then calcining;
s202, raw material processing:
sorting, crushing and smashing, finely grinding and screening raw materials;
s203, preparing mud materials:
mixing materials, mixing and ageing, wherein the materials are mixed according to the weight of various materials and the proper proportion of particle compositions;
s204, blank forming:
forming the blank under the action of external force to obtain a compact blank with a certain shape and size from loose pug;
s205, firing of finished products:
and (3) drying the green body, and calcining at high temperature to obtain the light refractory brick (4).
S3 combined installation of refractory materials
S301, firstly selecting two vacuum heat insulation plates which are matched with each other, and then paving light refractory bricks (4) in inner cavities of the two vacuum heat insulation plates;
s302, mutually clamping two saw-toothed mounting blocks (3) with matched vacuum heat insulation plates in shape to form a stable square-shaped structure;
s303, finally pouring the light high-aluminum liquid (5) into a gap between the two light refractory bricks (4) to form a refractory material finished product.
3. The method for preparing a refractory material for a refractory layer of an acid removal furnace according to claim 2, wherein: in step S201, the clay and the bauxite are placed into a rotary kiln, the temperature in the rotary kiln is heated to 1350-1550 ℃, and the calcination is carried out for 6-8 hours.
4. The method for preparing a refractory material for a refractory layer of an acid removal furnace according to claim 2, wherein: in step S202, impurities mixed after calcination, unburnt fuel blocks and clinker blocks are sorted out.
5. The method for preparing a refractory material for a refractory layer of an acid removal furnace according to claim 2, wherein: in step S203, the specific method of mixing is: mixing the refractory clay, siliceous raw materials, dolomite, magnesite, graphite and pyrophyllite, wherein the proportion of the refractory clay, the siliceous raw materials, the dolomite, the magnesite, the graphite and the pyrophyllite is 3.2: 1: 1.2: 1.3: 1.51: 1.5.
6. the method for preparing a refractory material for a refractory layer of an acid removal furnace according to claim 2, wherein: in step S204, the molding method includes: grouting, plasticizing, semidrying, fusion casting, and isostatic pressing.
7. The method for preparing a refractory material for a refractory layer of an acid removal furnace according to claim 2, wherein: in step S205, the drying process parameters are as follows: the temperature is 29-34 ℃, the humidity is 65-80%, and the calcining process parameters are as follows: the temperature is 900-1000 ℃, and the time is about 1-2 hours.
8. The method for preparing a refractory material for a refractory layer of an acid removal furnace according to claim 1, wherein the refractory material comprises: the corresponding mounting blocks (3) of the first vacuum heat insulation plate (1) and the second vacuum heat insulation plate (2) are matched in position and size, and the mounting blocks (3) are meshed with each other through a serrated connecting port.
9. The method for preparing a refractory material for a refractory layer of an acid removal furnace according to claim 1, wherein the refractory material comprises: a gap is reserved between the first vacuum heat insulation plate (1) and the second vacuum heat insulation plate (2), and the shape of the gap is cuboid and matched with the position and the size of the light refractory brick (4).
CN202210156927.9A 2022-02-21 2022-02-21 Refractory material for deacidification furnace refractory layer and preparation method thereof Pending CN114380609A (en)

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