CN114230141A - High-corrosion-resistance lip brick for glass kiln and preparation method thereof - Google Patents
High-corrosion-resistance lip brick for glass kiln and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/42—Details of construction of furnace walls, e.g. to prevent corrosion; Use of materials for furnace walls
- C03B5/43—Use of materials for furnace walls, e.g. fire-bricks
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- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
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- C04B2235/3427—Silicates other than clay, e.g. water glass
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Abstract
The invention discloses a high-erosion-resistance lip brick for a glass kiln and a preparation method thereof. According to the invention, the two layers are arranged during the processing of the lip brick, the upper lip brick has excellent anti-erosion and fire-resistant excellent performances, good thermal shock stability, low porosity, good volume stability and high strength can be ensured, meanwhile, the erosion of glass to the lip brick can be improved, the service life of the whole body can be prolonged, the lower lip brick adopts basic materials, the processing cost can be reduced, and the lip brick can be reasonably utilized by producing a proper lip brick according to actual conditions.
Description
Technical Field
The invention relates to the technical field of lip bricks, in particular to a high-corrosion-resistance lip brick for a glass kiln and a preparation method thereof.
Background
With the widespread use of solar energy, the production of rolled glass used in some solar devices is increasing, and lip tiles are an important forming and using part of the rolled glass production line, and the using environment is very harsh. The usual temperature of use of the lip tile is: the contact surface with the glass liquid is 1180-1200 ℃, and the temperature of the non-glass liquid contact surface is 600-700 ℃, because the lip brick is longer. The lip tile must have the following properties: (1) the dimensional tolerance of the cross section is small, the deformation is small, and the deformation after the firing in the length direction can not exceed 3 mm; (2) must have good thermal shock stability; (3) has good alkali corrosion resistance. At present, the lip brick is produced by a tamping method and a vacuum casting method, raw clay or phosphate is used as a bonding agent, ceramic bonding begins to be formed at about 1000 ℃, sintering needs higher temperature and longer time, and most of mullite in the product exists in an initial crystal phase.
The retrieved Chinese patent publication No. CN101747066B discloses a lip brick and a preparation method thereof, which comprises the following raw materials, by weight, 40-60 parts of mullite, 10-15 parts of white corundum, 5-10 parts of sillimanite, 4-6 parts of kyanite, 10-15 parts of alumina, 4-6 parts of silica micropowder, 5-8 parts of alpha alumina and 3-6 parts of a binding agent. The invention adopts a pouring vibration forming method, and the best selection and matching of the raw material composition are adopted, so that the produced rolled lip brick has the advantages of uniform structure, good thermal shock stability, low porosity, good volume stability, high strength, long service life, rich raw material sources and low cost.
When in actual use, the anti-corrosion and high temperature resistance of the lip brick only need to ensure that the end face in contact with the glass ensures better excellence, and the non-contact end face only needs to ensure basic performance, and the lip brick integrally adopts anti-corrosion and fireproof processes, can increase the processing cost due to frequent replacement of the lip brick, and cannot fully utilize the performance of the lip brick.
Disclosure of Invention
The invention aims to provide a high-corrosion-resistance lip brick for a glass kiln and a preparation method thereof, so as to solve the problems in the background technology.
The technical scheme of the invention is realized as follows:
according to one aspect of the invention, the high erosion resistance lip brick for the glass kiln comprises a lip brick body, wherein the lip brick body is composed of an upper lip brick and a lower lip brick, fixing strips are arranged on the lower lip brick at equal intervals, the lower lip brick and the fixing strips are of an integral structure, fixing grooves are arranged below the upper lip brick at equal intervals, the fixing grooves are clamped with the fixing strips, and an inclined surface is arranged on the upper lip brick.
According to another aspect of the present invention, a lip tile is provided.
The lip brick is a high-corrosion-resistance lip brick for a glass kiln and is prepared from the following raw materials in parts by weight:
40-60 parts of high clay, 15-20 parts of quartz, 13-17 parts of feldspar, 5-7 parts of talcum powder, 18-24 parts of refractory material, 12-16 parts of anti-erosion material, 2-2.4 parts of sodium tripolyphosphate and 20-30 parts of water.
Furthermore, in order to improve the viscosity of the liquid phase and prevent high-temperature deformation, the quartz is one or a mixture of quartz sand, diatomite and quartzite and plays a skeleton role in the porcelain blank after cooling.
Furthermore, in order to dissolve a part of quartz and kaolin decomposed products after melting at high temperature, the melted high-viscosity glass can play a role in high-temperature cementation, and the feldspar is one or a mixture of albite, anorthite and celsian.
Further, in order to improve the fireproof performance of the lip brick and ensure the service life, the fireproof material comprises the following raw material components in parts by weight: 6-8 parts of fused corundum powder, 6-8 parts of dolomite powder and 6-8 parts of ball clay.
Further, in order to improve the erosion resistance of the lip brick, delay the corrosion of the lip brick and effectively improve the service life, the erosion resistant material comprises the following raw material components in parts by weight: 6-8 parts of chrome corundum, 3-4 parts of fused chromium oxide and 3-4 parts of zirconium oxide.
According to another aspect of the invention, a preparation method of the high erosion resistance lip brick for the glass kiln is provided.
The preparation method is used for preparing the lip tile and comprises the following steps:
step S101: weighing all raw materials required by the high-corrosion-resistance lip brick for the glass kiln according to the mass parts;
step S102: sequentially putting high clay, quartz, feldspar and talcum powder into a ball mill, grinding into powder, and screening to obtain a mixture A;
step S103: adding sodium tripolyphosphate and a proper amount of water into the mixture A, and fully mixing and stirring to obtain a material A;
step S104: sequentially adding the fused corundum powder, the dolomite powder, the ball clay, the chromium corundum, the fused chromium oxide and the zirconium oxide into a ball mill, grinding into powder, and screening to obtain a mixture B;
step S105: adding a proper amount of water into the mixture B, fully mixing and stirring to obtain a material B, and mixing the material B and the material A in equal proportion to obtain a material C;
step S106: respectively putting the rest material A and the rest material C into a material storehouse for aging treatment;
step S107: separating the die by using a partition plate, putting the aged material A into a lower cavity of the die, and vibrating the die to uniformly spread the material A in the lower cavity of the die for natural solidification to form a prototype of a lower lip brick and a fixing strip;
step S108: when the material A is completely solidified after being shaped, the partition plate is removed, the material C aged in the step S106 is added into a mold, and the material C is vibrated, pressurized and molded to be naturally solidified to obtain a green brick;
step S109: and (3) carrying out ventilation drying on the obtained green bricks, then placing the green bricks into a kiln for firing to obtain the high-corrosion-resistance lip brick for the glass kiln, and then placing the lip brick into a baking furnace for baking and bubble removal.
Further, in order to sieve the ground material and facilitate the subsequent mixing process, the sieve in step S102 and step S104 is 140-200 mesh.
Further, in order to improve the plasticity of the raw materials, the moisture on the surface of the particles is permeated into the particles, the moisture of the raw materials with uneven dryness or insufficient stirring is uniform and consistent through mutual permeation, the physical properties of the raw materials are improved, the extrusion molding is facilitated, and the aging time in the step S106 is 6 to 7 days.
Further, in order to improve the burning quality of the product, the drying temperature in the step S109 is 100-.
The raw material components adopted by the invention are explained as follows:
high clay content: a natural hydrated magnesium aluminum silicate has a unique three-dimensional chain structure and special needle and rod fibrous crystal morphology, is a plastic substance and contains Al as a main chemical component2O3The components play a role in plasticity and combination in production, and ensure the strength of a dry blank and various service performances after sintering;
quartz: is one of the main rock-making minerals, generally referred to as low-temperature quartz, and is one of the most widely distributed minerals in the quartz family. The quartz in a broad sense also includes high temperature quartz, coesite, and the like. The main component is SiO2Colorless and transparent, often containing small amounts of impurity components, and becoming translucent or opaque crystals, hard in texture, which can reduce the stickiness of the billet. During firing, part of quartz is dissolved in feldspar glass, so that the liquid phase viscosity is improved, high-temperature deformation is prevented, and the quartz plays a skeleton role in a porcelain blank after being cooled;
feldspar: feldspar is the most important rock-making mineral of surface rock. Feldspar is a general name of feldspar minerals, is a common aluminosilicate rock-making mineral containing calcium, sodium and potassium, and contains calcium, sodium and potassium. It is available in various forms, such as albite, anorthite, celsian, microcline feldspar, orthoclase feldspar, and diaclase feldspar. They all have glass luster and various colors, and feldspar belongs to a flux raw material. Main chemical constituent K2O、Na2O, CaO, MgO. After melting at high temperatureA part of quartz and kaolin decomposition products can be dissolved, and the fused high-viscosity glass can play a role in high-temperature cementation;
talc powder: is an industrial product, is a magnesium silicate mineral talc family talc, the principal ingredients are hydrous magnesium silicate, after pulverizing, treat with hydrochloric acid, water washing, dry to get final product, can improve the whole smooth property;
sodium tripolyphosphate: is an inorganic substance, is an amorphous water-soluble linear polyphosphate, and has the functions of chelation, suspension, dispersion, peptization, emulsification, pH buffering and the like;
electro-fused corundum powder: the material is prepared by melting industrial alumina or calcined alumina serving as a raw material in an electric arc furnace at high temperature, is an important raw material for preparing high-grade refractory materials, and is widely used in the abrasive industry. The corundum refractory raw material prepared by the electro-fused corundum electro-fusion method has high content of aluminum dioxide. The corundum crystal grains are complete and coarse. Melting the above industrial alumina or high alumina soil clinker as raw material in an electric arc furnace, removing residue, and cooling to obtain a clinker;
dolomite powder: is a sedimentary carbonate rock. Mainly consists of dolomite, often mixed with quartz, feldspar, calcite and clay minerals. Is gray, brittle, hard and easy to scratch with ironware. The foaming agent slowly foams or does not foam when meeting dilute hydrochloric acid, has a similar appearance to limestone, and can be used as a fusing agent and a refractory material in the metallurgical industry;
ball clay: the clay mineral is a clay mineral which contains microcrystalline kaolinite and alpha-quartz particles as main mineral components. Or ball clay, a refractory material. The ball clay is high-plasticity clay rich in organic matters, the refractoriness of the ball clay is usually 1610-;
chromium corundum: the main mineral composition is alpha-Al2O3-Cr2O3Solid solution, refractory brick containing less composite spinel and chromium oxide in 1-30 wt%, and can be used as lining of glass kiln, cover plate brick for drawn glass flow hole, and as molten iron pretreatment device, garbage incinerator, and waterCoal slurry pressurized gasifier backing, etc.;
electric melting chromic oxide: is light green to dark green fine hexagonal crystal. Brown when hot and green when cold. The crystal is extremely hard and stable;
zirconium oxide: usually white odorless and tasteless crystals, and is insoluble in water, hydrochloric acid and dilute sulfuric acid. The chemical property is inactive, and the material has the properties of high melting point, high resistivity, high refractive index and low thermal expansion coefficient, so that the material becomes an important high temperature resistant material, a ceramic insulating material and a ceramic opacifier, and is also a main raw material of the artificial drill.
Compared with the prior art, the invention has the beneficial effects that:
(1) the two layers are arranged during the processing of the lip brick, the upper lip brick is in contact with the glass, the upper lip brick has excellent erosion resistance and fire resistance, the thermal shock stability is good, the porosity is low, the volume stability is good, the strength is high, meanwhile, the erosion of the glass to the lip brick can be improved, the service life of the whole body is prolonged, the end face, which is not in contact with the glass, of the lower lip brick is made of basic materials, the high temperature resistance of 900 ℃ can be met, the processing cost can be reduced, the proper lip brick can be produced according to actual conditions, the reasonable utilization can be realized, the processed lip brick is subjected to the bubble removal treatment in the first step, the condition that bubbles appear in a glass product during subsequent use can be avoided, and the quality of the product is ensured;
(2) kaolin as plastic material and its main chemical component Al2O3And (please check the subscript and modify it correctly) they play a role in plasticity and binding in production, ensuring the strength of the dry blank and various service performances after firing. Quartz is a barren material, a viscosity reducing substance. Main chemical composition SiO2It can reduce the blank stickiness. During firing, part of quartz is dissolved in feldspar glass, so that the liquid phase viscosity is improved, high-temperature deformation is prevented, and the quartz plays a skeleton role in a porcelain blank after being cooled. Feldspar belongs to a flux raw material. Main chemical constituent K2O、Na2O, CaO, MgO. After melting at high temperature, a part of quartz and kaolin decomposers can be dissolved, and the melted high-viscosity glass can play a role in high-temperature cementation;
(3) the lip brick has ideal high temperature resistance, erosion resistance, thermal shock resistance and heat insulation performance, the refractoriness is more than 1600 ℃, the preparation process is simple, the sintering time is short, the high efficiency and the environmental protection are realized, the energy is greatly saved, the integral smoothness can be improved by adding a small amount of talcum powder, meanwhile, the end face of the lip brick in contact with the glass is polished after the lip brick is processed and formed, the defects of bubbles, lines, bright lines and the like of the finished glass product are eliminated by ensuring the smoothness and the smoothness of the surface, the finished glass product rate is improved, and the production cost is reduced.
Drawings
FIG. 1 is a schematic structural view of a high erosion resistant lip brick for a glass kiln according to the present invention;
FIG. 2 is a schematic view of a partial structure of a high erosion resistant lip brick for a glass kiln according to the present invention;
FIG. 3 is a schematic flow chart of a method for preparing a high erosion resistance lip brick for a glass kiln according to the present invention;
FIG. 4 is a second schematic flow chart of the method for preparing a high erosion resistant lip brick for a glass kiln according to the present invention.
In the figure: 1. a lip tile body; 2. a lip brick is arranged; 3. a lower lip brick; 4. a fixing strip; 5. an inclined surface; 6. and fixing the grooves.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 4, the high erosion resistance lip tile for the glass kiln includes a lip tile body 1, and is characterized in that the lip tile body 1 is composed of an upper lip tile 2 and a lower lip tile 3, fixing strips 4 are arranged on the lower lip tile 3 at equal intervals, the lower lip tile 3 and the fixing strips 4 are of an integral structure, fixing grooves 6 are arranged under the upper lip tile 2 at equal intervals, the fixing grooves 6 are engaged with the fixing strips 4, and an inclined surface 5 is arranged on the upper lip tile 2.
According to another aspect of the present invention, a lip tile is provided.
The lip brick is a high-corrosion-resistance lip brick for a glass kiln and is prepared from the following raw materials in parts by weight:
40-60 parts of high clay, 15-20 parts of quartz, 13-17 parts of feldspar, 5-7 parts of talcum powder, 18-24 parts of refractory material, 12-16 parts of anti-erosion material, 2-2.4 parts of sodium tripolyphosphate and 20-30 parts of water.
The refractory material comprises the following raw material components in parts by weight: 6-8 parts of fused corundum powder, 6-8 parts of dolomite powder and 6-8 parts of ball clay.
The anti-corrosion material comprises the following raw material components in parts by weight: 6-8 parts of chrome corundum, 3-4 parts of fused chromium oxide and 3-4 parts of zirconium oxide.
In order to clearly understand the technical scheme of the invention, the technical scheme of the invention is described in detail through specific examples.
Example one
A lip brick is a high-erosion-resistance lip brick for a glass kiln and is prepared from the following raw materials in parts by mass:
40g of high clay, 15g of quartz, 13g of feldspar, 5g of talcum powder, 18g of refractory material, 12g of anti-corrosion material, 2g of sodium tripolyphosphate and 20g of water.
The refractory material comprises the following raw material components in parts by weight: 6g of fused corundum powder, 6g of dolomite powder and 6g of ball clay.
The anti-corrosion material comprises the following raw material components in parts by weight: 6g of chrome corundum, 3g of fused chromium oxide and 3g of zirconium oxide.
The preparation method of the high erosion resistance lip brick for the glass kiln comprises the following steps:
step S101: weighing all raw materials required by the high-corrosion-resistance lip brick for the glass kiln according to the mass parts;
step S102: sequentially putting 40g of high clay, 15g of quartz, 13g of feldspar and 5g of talcum powder into a ball mill, grinding into powder, and screening to obtain a mixture A;
step S103: adding 2g of sodium tripolyphosphate and 12g of water into the mixture A, and fully mixing and stirring to obtain a material A;
step S104: adding 6g of fused corundum powder, 6g of dolomite powder, 6g of ball clay, 6g of chrome corundum, 3g of fused chromium oxide and 3g of zirconium oxide into a ball mill in sequence, grinding into powder, and screening to obtain a mixture B;
step S105: adding 8g of water into the mixture B, fully mixing and stirring to obtain a material B, and mixing the material B and the material A in equal proportion to obtain a material C;
step S106: respectively putting the rest material A and the rest material C into a material storehouse for aging treatment;
step S107: separating the die by using a partition plate, putting the aged material A into a lower cavity of the die, and vibrating the die to uniformly spread the material A in the lower cavity of the die for natural solidification to form a prototype of a lower lip brick and a fixing strip;
step S108: when the material A is completely solidified after being shaped, the partition plate is removed, the material C aged in the step S106 is added into a mold, and the material C is vibrated, pressurized and molded to be naturally solidified to obtain a green brick;
step S109: and (3) carrying out ventilation drying on the obtained green bricks, then placing the green bricks into a kiln for firing to obtain the high-corrosion-resistance lip brick for the glass kiln, and then placing the lip brick into a baking furnace for baking and bubble removal.
Example two:
a lip brick is a high-erosion-resistance lip brick for a glass kiln and is prepared from the following raw materials in parts by mass
50g of high clay, 17.5g of quartz, 15g of feldspar, 6g of talcum powder, 21g of refractory material, 14g of anti-corrosion material, 2.2g of sodium tripolyphosphate and 25g of water.
The refractory material comprises the following raw material components in parts by weight: 7g of fused corundum powder, 7g of dolomite powder and 7g of ball clay.
The anti-corrosion material comprises the following raw material components in parts by weight: 7g of chrome corundum, 3.5g of fused chromium oxide and 3.5g of zirconium oxide.
The preparation method of the high erosion resistance lip brick for the glass kiln comprises the following steps:
step S101: weighing all raw materials required by the high-corrosion-resistance lip brick for the glass kiln according to the mass parts;
step S102: sequentially putting 50g of high clay, 17.5g of quartz, 15g of feldspar and 6g of talcum powder into a ball mill, grinding into powder, and screening to obtain a mixture A;
step S103: adding 2.2g of sodium tripolyphosphate and 15g of water into the mixture A, and fully mixing and stirring to obtain a material A;
step S104: adding 7g of fused corundum powder, 7g of dolomite powder, 7g of ball clay, 7g of chrome corundum, 3.5g of fused chromium oxide and 3.5g of zirconium oxide into a ball mill in sequence, grinding into powder, and screening to obtain a mixture B;
step S105: adding 10g of water into the mixture B, fully mixing and stirring to obtain a material B, and mixing the material B and the material A in equal proportion to obtain a material C;
step S106: respectively putting the rest material A and the rest material C into a material storehouse for aging treatment;
step S107: separating the die by using a partition plate, putting the aged material A into a lower cavity of the die, and vibrating the die to uniformly spread the material A in the lower cavity of the die for natural solidification to form a prototype of a lower lip brick and a fixing strip;
step S108: when the material A is completely solidified after being shaped, the partition plate is removed, the material C aged in the step S106 is added into a mold, and the material C is vibrated, pressurized and molded to be naturally solidified to obtain a green brick;
step S109: and (3) carrying out ventilation drying on the obtained green bricks, then placing the green bricks into a kiln for firing to obtain the high-corrosion-resistance lip brick for the glass kiln, and then placing the lip brick into a baking furnace for baking and bubble removal.
Example three:
a lip brick is a high-erosion-resistance lip brick for a glass kiln and is prepared from the following raw materials in parts by mass
60g of high clay, 20g of quartz, 17g of feldspar, 7g of talcum powder, 24g of refractory material, 16g of anti-corrosion material, 2.4g of sodium tripolyphosphate and 30g of water.
The refractory material comprises the following raw material components in parts by weight: 8g of fused corundum powder, 8g of dolomite powder and 8g of ball clay.
The anti-corrosion material comprises the following raw material components in parts by weight: 8g of chrome corundum, 4g of fused chromium oxide and 4g of zirconium oxide.
The preparation method of the high erosion resistance lip brick for the glass kiln comprises the following steps:
step S101: weighing all raw materials required by the high-corrosion-resistance lip brick for the glass kiln according to the mass parts;
step S102: sequentially putting 60g of high clay, 20g of quartz, 17g of feldspar and 7g of talcum powder into a ball mill, grinding into powder, and screening to obtain a mixture A;
step S103: adding 2.4g of sodium tripolyphosphate and 18g of water into the mixture A, and fully mixing and stirring to obtain a material A;
step S104: adding 8g of fused corundum powder, 8g of dolomite powder, 8g of ball clay, 8g of chrome corundum, 4g of fused chromium oxide and 4g of zirconium oxide into a ball mill in sequence, grinding into powder, and screening to obtain a mixture B;
step S105: adding 12g of water into the mixture B, fully mixing and stirring to obtain a material B, and mixing the material B and the material A in equal proportion to obtain a material C;
step S106: respectively putting the rest material A and the rest material C into a material storehouse for aging treatment;
step S107: separating the die by using a partition plate, putting the aged material A into a lower cavity of the die, and vibrating the die to uniformly spread the material A in the lower cavity of the die for natural solidification to form a prototype of a lower lip brick and a fixing strip;
step S108: when the material A is completely solidified after being shaped, the partition plate is removed, the material C aged in the step S106 is added into a mold, and the material C is vibrated, pressurized and molded to be naturally solidified to obtain a green brick;
step S109: and (3) carrying out ventilation drying on the obtained green bricks, then placing the green bricks into a kiln for firing to obtain the high-corrosion-resistance lip brick for the glass kiln, and then placing the lip brick into a baking furnace for baking and bubble removal.
To lip brick body 1, go up and carry out the block fixed combination through fixed strip 4 and fixed slot 6 between lip brick 2 and the lower lip brick 3, can improve holistic stability, improve lip brick body 1's holistic quality, the inclination of seting up inclined plane 5 on going up lip brick 2 simultaneously is 1-3, can make things convenient for glass to process in going into the impression roller through last lip brick 2, improves the efficiency of processing.
In summary, by means of the technical scheme of the invention, the high erosion resistant lip brick for the glass kiln can be invented, two layers are arranged during the processing of the lip brick, the upper lip brick is in contact with glass through the upper lip brick 2, the upper lip brick has excellent erosion resistant and fireproof excellent performance, good thermal shock stability, low porosity, good volume stability and high strength can be ensured, meanwhile, the erosion of the glass to the lip brick can be improved, the service life of the whole body can be prolonged, the end face of the lower lip brick 3, which is not in contact with the glass, is made of basic materials, the high temperature resistance of 900 ℃ can be met, the processing cost can be reduced, a proper lip brick can be produced according to actual conditions, the lip brick can be reasonably utilized, the prior bubble removal treatment can be carried out on the processed lip brick, the condition that bubbles appear in a glass product during subsequent use can be avoided, the quality of the product can be ensured, and kaolin is a plastic substance, main chemical composition Al2O3They have plasticity and binding action in production, and ensure the strength of dry blank and various service properties after firing. Quartz is a barren material, a viscosity reducing substance. Main chemical composition SiO2It can reduce the blank stickiness. During firing, part of quartz is dissolved in feldspar glass, so that the liquid phase viscosity is improved, high-temperature deformation is prevented, and the quartz plays a skeleton role in a porcelain blank after being cooled. Feldspar belongs to a flux raw material. Main chemical constituent K2O、Na2O, CaO, MgO. Melting at high temperature to dissolve part of quartz and kaolin decomposition product, and melting to obtain high viscosityThe glass has the advantages of high-temperature cementation effect, ideal high-temperature resistance, erosion resistance, thermal shock resistance and heat insulation performance, refractoriness of more than 1600 ℃, simple preparation process, short sintering time, high efficiency, environmental protection and great energy conservation, the integral smoothness can be improved by adding a small amount of talcum powder, and meanwhile, the end face of the lip brick in contact with the glass is polished after processing and forming, so that the defects of bubbles, lines, bright lines and the like of the finished glass product are eliminated by ensuring the smoothness and the smoothness of the surface, the finished glass product rate is improved, and the production cost is reduced.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The utility model provides a glass kiln is with high anti erosion lip brick, includes lip brick body (1), its characterized in that, lip brick body (1) comprises last lip brick (2) and lower lip brick (3), equidistant fixed strip (4) of being equipped with down lip brick (3), and lower lip brick (3) with fixed strip (4) structure as an organic whole, go up lip brick (2) equidistant fixed slot (6) of having seted up down, fixed slot (6) with fixed strip (4) looks block, be equipped with inclined plane (5) on going up lip brick (2).
2. The high erosion resistance lip brick for the glass kiln as claimed in claim 1, wherein the lip brick body (1) is made of the following raw materials in parts by mass:
40-60 parts of high clay, 15-20 parts of quartz, 13-17 parts of feldspar, 5-7 parts of talcum powder, 18-24 parts of refractory material, 12-16 parts of anti-erosion material, 2-2.4 parts of sodium tripolyphosphate and 20-30 parts of water.
3. The lip tile according to claim 2, wherein: the quartz is one or a mixture of quartz sand, diatomite or quartzite.
4. The lip tile according to claim 2, wherein: the feldspar is one or a mixture of albite, anorthite or celsian.
5. The lip tile according to claim 2, wherein: the refractory material comprises the following raw material components in parts by weight: 6-8 parts of fused corundum powder, 6-8 parts of dolomite powder and 6-8 parts of ball clay.
6. The lip tile according to claim 2, wherein: the anti-corrosion material comprises the following raw material components in parts by weight: 6-8 parts of chrome corundum, 3-4 parts of fused chromium oxide and 3-4 parts of zirconium oxide.
7. A method for preparing the high erosion resistant lip brick for the glass kiln as set forth in any one of claims 2 to 6, characterized in that it comprises the following steps:
step S101: weighing all raw materials required by the high-corrosion-resistance lip brick for the glass kiln according to the mass parts;
step S102: sequentially putting high clay, quartz, feldspar and talcum powder into a ball mill, grinding into powder, and screening to obtain a mixture A;
step S103: adding sodium tripolyphosphate and a proper amount of water into the mixture A, and fully mixing and stirring to obtain a material A;
step S104: sequentially adding the fused corundum powder, the dolomite powder, the ball clay, the chromium corundum, the fused chromium oxide and the zirconium oxide into a ball mill, grinding into powder, and screening to obtain a mixture B;
step S105: adding a proper amount of water into the mixture B, fully mixing and stirring to obtain a material B, and mixing the material B and the material A in equal proportion to obtain a material C;
step S106: respectively putting the rest material A and the rest material C into a material storehouse for aging treatment;
step S107: separating the die by using a partition plate, putting the aged material A into a lower cavity of the die, and vibrating the die to uniformly spread the material A in the lower cavity of the die for natural solidification to form a prototype of a lower lip brick (3) and a fixing strip (4);
step S108: when the material A is completely solidified after being shaped, the partition plate is removed, the material C aged in the step S106 is added into a mold, and the material C is vibrated, pressurized and molded to be naturally solidified to obtain a green brick;
step S109: and (3) carrying out ventilation drying on the obtained green bricks, then placing the green bricks into a kiln for firing to obtain the high-corrosion-resistance lip brick for the glass kiln, and then placing the lip brick into a baking furnace for baking and bubble removal.
8. The method for preparing the high erosion resistant lip brick for the glass kiln according to claim 7, wherein the method comprises the following steps: the screening mesh in the step S102 and the step S104 is 140-200 meshes.
9. The method for preparing the high erosion resistant lip brick for the glass kiln according to claim 7, wherein the method comprises the following steps: the aging time in step S106 is 6-7 days.
10. The method for preparing the high erosion resistant lip brick for the glass kiln according to claim 7, wherein the method comprises the following steps: the drying temperature in the step S109 is 100-110 ℃, the moisture content of the dried green brick is 4-5.8%, the firing temperature is 1140-1230 ℃, and the firing time is 45-55 min.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115626832A (en) * | 2022-11-02 | 2023-01-20 | 湖北瑞信养生用品科技有限公司 | Silicon carbide fiber composite ceramic trough for glass production and preparation method thereof |
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