Low-temperature fast-fired ceramic tile based on industrial solid waste and preparation method thereof

Abstract

The application belongs to the technical field of building ceramics, and particularly discloses a low-temperature fast-firing ceramic tile based on industrial solid waste and a preparation method thereof. The raw material components of the low-temperature fast-firing ceramic tile include low-temperature ceramic raw materials and industrial solid waste raw materials, wherein the low-temperature ceramic raw materials include hyaline augite, diopside, perlite, spodumene and dolomite, and the industrial solid waste raw materials include red mud, manganese slag and non-metal tailings. By adding a certain amount of low-temperature ceramic raw materials into the industrial solid waste raw materials, on the one hand, the high-hardness wollastonite, diopside and perlite contained in the low-temperature ceramic raw materials are utilized to improve the compressive strength and bending strength of the low-temperature fast-firing ceramic tile; on the other hand, the low-temperature ceramic raw materials and the industrial solid waste raw materials have similar or compatible properties, so that the uniformity and fluidity of the raw materials are improved, thereby realizing that the ceramic tile prepared under the condition of low-temperature fast firing has good mechanical properties, durability and aesthetic properties, and is suitable for various building decorations.

Description

Technical Field

[0001] This invention belongs to the field of building ceramics technology, and in particular relates to a low-temperature fast-firing ceramic brick based on industrial solid waste and its preparation method. Background Technology

[0002] Ceramic bricks are a widely used material in building decoration, possessing advantages such as high strength, wear resistance, corrosion resistance, and aesthetic appeal. Currently, there are two main methods for preparing ceramic bricks: high-temperature long-time sintering and low-temperature rapid firing. High-temperature long-time sintering refers to sintering the ceramic body at a high temperature (above 1180-1250℃) for several hours. This method can produce high-quality ceramic bricks, but it is time-consuming, energy-intensive, costly, and requires high-quality raw materials.

[0003] Low-temperature rapid firing of architectural ceramic tiles refers to the use of low-temperature ceramic raw materials and low-temperature flux raw materials, along with rapid heating and cooling processes, to significantly reduce the firing temperature and cycle of ceramic tiles, thereby saving energy and costs while improving product quality and performance. The low-temperature rapid firing temperature and time vary depending on the type of architectural ceramic tile. Generally, the temperature range for low-temperature rapid firing is between 800℃ and 1150℃, and the firing time ranges from approximately 10 minutes to 4 hours. For example, architectural ceramic tiles made from diopside raw materials have an extremely low firing temperature, only around 980℃-1020℃, which is about 100℃ lower than the firing temperature of wollastonite blanks.

[0004] Low-temperature rapid firing can shorten the production cycle, save energy, and reduce costs, and it has lower requirements for the quality of raw materials. However, the resulting ceramic tiles do not perform as well as those produced by high-temperature long-time sintering in terms of mechanical properties, durability, and aesthetics. Therefore, how to improve the quality of ceramic tiles based on low-temperature rapid firing is one of the most pressing technical problems to be solved in the field of building ceramics.

[0005] In existing technologies, some research has attempted to use industrial solid waste to prepare ceramic materials. For example, building ceramic bricks are prepared using waste such as steel smelting tailings and coal gangue; or low-temperature sintered ceramic bricks are prepared using waste such as fly ash and expanded perlite. However, these technologies still have many problems. For example, the quality of the ceramic bricks is unstable and cannot meet the requirements of building materials. Currently, the main technical problems in preparing building ceramic products using industrial solid waste under low-temperature rapid firing conditions are as follows:

[0006] (1) The selection and treatment of industrial solid waste has problems such as high cost, low efficiency and poor quality, which affect the performance and life of ceramic products.

[0007] (2) Low-temperature rapid firing leads to uneven distribution of impurities, moisture, oxides, etc. in ceramic raw materials, affecting the strength and durability of ceramic products.

[0008] (3) Low-temperature rapid firing causes other elements in ceramic raw materials (such as silicon, aluminum, manganese, etc.) to react with the main elements such as calcium and magnesium, affecting the composition and performance of ceramic products. Summary of the Invention

[0009] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a low-temperature fast-firing ceramic brick based on industrial solid waste and its preparation method. The ceramic brick uses industrial solid waste as the main raw material, which is combined with low-temperature ceramic raw materials commonly used in the production of building ceramic bricks to prepare low-temperature fast-firing building ceramic bricks with excellent physical and chemical properties.

[0010] To solve the above-mentioned technical problems, the first aspect of the present invention provides a low-temperature fast-firing ceramic brick based on industrial solid waste, the raw material components of which include low-temperature ceramic raw materials and industrial solid waste raw materials. The low-temperature ceramic raw materials include spodumene, diopside, perlite, spodumene and dolomite, and the industrial solid waste raw materials include red mud, manganese slag and non-metallic tailings.

[0011] This invention uses low-temperature ceramic raw materials and industrial solid waste raw materials as the main raw materials, giving full play to the effective chemical composition of each raw material, and utilizing the characteristics of each raw material and the interaction between the raw materials, so as to achieve low-temperature rapid firing of ceramic products while ensuring product quality.

[0012] Specifically, the chemical structural formula of hyddenstone is CaFeSi2O6, and its theoretical composition by weight percentage is: CaO 22.2%, FeO 28.5%, SiO 2 47.6%.

[0013] The chemical structural formula of diopside is CaMgSi2O6, and its theoretical composition by weight percentage is: SiO2 55.6%, CaO 25.9%, MgO 18.5%.

[0014] The chemical structural formula of perlite is KAlSi3O8, and its theoretical composition by weight percentage is: SiO2 64.7%, Al2O3 18.4%, K2O 16.9%.

[0015] The chemical structural formula of spodumene is LiAl(SiO3)2, and its theoretical composition by weight percentage is: SiO2 64.6%, Al2O3 27.4%, Li2O 8.0%.

[0016] The chemical structural formula of dolomite is Al2Si2O5(OH)4. Its theoretical composition by weight percentage is: SiO2 46.5%, Al2O3 39.5%, and loss on ignition 14.0%.

[0017] Red mud is a solid waste generated during alumina production, and its main components are alumina, iron oxide, titanium oxide, and silicates. The alumina and silicates in red mud are similar to wollastonite and dolomite, raw materials for low-temperature ceramics, and can be used as raw materials or additives for these ceramics. Furthermore, red mud contains a large amount of soluble salt compounds and free heavy metal ions. These substances have high solubility and stability at low temperatures, which is beneficial for improving the corrosion resistance and oxidation resistance of low-temperature ceramics.

[0018] Manganese slag is a solid waste generated during the manganese industry. Its chemical composition mainly consists of manganese oxide, iron oxide, calcium oxide, magnesium oxide, zinc oxide, carbon, and silicon. The calcium oxide and magnesium oxide in manganese slag are similar to diopside and perlite, raw materials for low-temperature ceramics, and can be used as raw materials or additives for these ceramics. Simultaneously, manganese slag can provide a large amount of soluble salt compounds and free heavy metal ions as solvents or reinforcing agents to improve the corrosion resistance and oxidation resistance of low-temperature ceramics, thus extending their service life.

[0019] Non-metallic tailings are a type of solid waste generated during the production of non-metallic minerals. Their composition is complex, mainly including quartz, feldspar, mica, and clay. These inorganic substances are similar to spodumene in low-temperature ceramic raw materials and can be used as raw materials or additives for these ceramics.

[0020] Preferably, the chemical composition of the red mud, by weight percentage, includes: Fe2O3 30-35%, Al2O3 15-25%, TiO2 1-5%, CaO 25-35%, MgO 10-20%, and SiO 25-15%.

[0021] Preferably, the chemical composition of the manganese ore, by weight percentage, includes: MnO2 40-50%, Fe2O3 20-30%, SiO2 10-20%, Al2O3 10-20%, and CaO 5-15%.

[0022] Preferably, the chemical composition of the non-metallic tailings, by weight percentage, includes: SiO2 40-60%, Al2O3 10-20%, Fe2O3 5-15%, CaO 10-20%, and MgO 5-15%.

[0023] Preferably, the mass ratio of the low-temperature ceramic raw material to the industrial solid waste raw material is (2-3):1.

[0024] Preferably, the low-temperature ceramic raw material comprises, by weight:

[0025]

[0026] Preferably, the low-temperature ceramic raw material comprises, by weight:

[0027] 10-15 parts red mud;

[0028] 5-10 parts of manganese slag;

[0029] 5-10 portions of non-metallic tailings.

[0030] A second aspect of the present invention provides a method for preparing the above-mentioned low-temperature fast-firing ceramic bricks based on industrial solid waste, comprising the following steps:

[0031] (1) The low-temperature ceramic raw materials and industrial solid waste raw materials are crushed, screened and dried respectively, and then mixed to obtain powder.

[0032] (2) After surface modification of the powder, it is sieved or classified to obtain pre-made powder;

[0033] (3) After the pre-made powder is made into a slurry, it is spray-granulated to obtain raw powder;

[0034] (4) After pressing the raw powder into shape, it is fired in a kiln to obtain the low-temperature fast-fired ceramic brick based on industrial solid waste.

[0035] Preferably, in step (1), the particle size of the powder is less than 0.1 mm. Specifically, spodumene, diopside, perlite, spodumene, and dolomite are coarsely crushed using a jaw crusher, then finely crushed using a ball mill, and finally sieved using a vibrating screen to obtain powder A with a particle size less than 0.5 mm; red mud, manganese slag, and non-metallic tailings are coarsely crushed using a hammer crusher, then finely crushed using a vertical mill, and finally sieved using an air classifier to obtain powder B with a particle size less than 0.1 mm; then powder A and powder B are placed in a drying oven and dried at 105°C for 4 hours to obtain dry powder A and dry powder B with a moisture content of less than 1%; then dry powder A and dry powder B are mixed to obtain the powder.

[0036] Preferably, in step (2), the surface modification step is as follows: the powder is added to a sodium humate solution with a concentration of 1-5 g / L, stirred, centrifuged, and dried to obtain the surface-modified powder; the mass concentration of the powder in the sodium humate solution is 1-1.5 g / L; and the particle size of the pre-made powder is 0.01-0.5 mm. The purpose of surface modification of the powder is mainly to improve the uniformity and flowability of the low-temperature powder, and at the same time improve the ball milling efficiency in the later stage.

[0037] Preferably, in step (3), water, a reinforcing agent, and a plasticizer are added to the slurry. The reinforcing agent includes polyacrylate cellulose, and the plasticizer includes polyethylene glycol. The amount of the reinforcing agent added is 0.3-0.6 wt% of the powder, and the amount of the plasticizer added is 0.3-0.6 wt% of the powder.

[0038] Preferably, in step (4), the firing temperature is 900-1000℃.

[0039] Preferably, in step (4), the firing cycle is 35-50 minutes.

[0040] Compared with the prior art, the above-described technical solution of the present invention has at least the following technical effects or advantages:

[0041] (1) This invention adds a certain amount of low-temperature ceramic raw materials (hadenite, diopside, perlite, spodumene, and dolomite) to industrial solid waste raw materials (red mud, manganese slag, and non-metallic tailings). On the one hand, it utilizes the high hardness of wollastonite, diopside, and perlite contained in the low-temperature ceramic raw materials to improve the compressive strength and flexural strength of the low-temperature fast-fired ceramic bricks. On the other hand, since the low-temperature ceramic raw materials have similarity or compatibility with industrial solid waste raw materials, it improves the uniformity and fluidity of each raw material. Thus, under the condition of low-temperature fast firing, the ceramic bricks produced have good mechanical properties, durability, and aesthetics, and are suitable for various building decorations.

[0042] (2) The low-temperature ceramic raw materials (hydenite, diopside, perlite, spodumene and dolomite) used in this invention have the characteristics of low melting point, low shrinkage rate and high activity, and can form stable glass phase and crystalline phase under low temperature conditions, thereby improving the density and strength of ceramic products; the industrial solid waste raw materials (red mud, manganese slag and non-metallic tailings) contain rich iron oxide, aluminum oxide, calcium oxide, magnesium oxide and other metal oxides, which can react chemically with the low-temperature ceramic raw materials to form a variety of beneficial inorganic complexes, thereby improving the hardness and durability of ceramic products.

[0043] (3) This invention makes full use of industrial solid waste raw materials. By pre-treating them (crushing, surface modification, and reinforcement), especially by using sodium humate to modify the surface of the powder, the flowability and uniformity of the powder are effectively improved, the agglomeration and stratification of the powder are reduced, and the uniformity and stability of ceramic products are improved. It is also compounded with specific low-temperature ceramic raw materials to produce ceramic bricks with performance comparable to high-quality raw materials, which saves resources and protects the environment. At the same time, the low-temperature fast firing process not only shortens the production cycle, but also greatly reduces energy consumption. Detailed Implementation

[0044] The present invention will now be described in detail with reference to embodiments to facilitate understanding of the invention by those skilled in the art. It is particularly important to note that the embodiments are merely illustrative of the invention and should not be construed as limiting the scope of protection of the invention. Non-essential improvements and adjustments made to the invention by those skilled in the art based on the above description should still fall within the scope of protection of the invention. Furthermore, all raw materials mentioned below, unless otherwise specified, are commercially available products; all process steps or preparation methods not mentioned in detail are process steps or preparation methods known to those skilled in the art.

[0045] Example 1

[0046] A low-temperature fast-firing ceramic brick based on industrial solid waste, the raw material components of which, by weight, include:

[0047]

[0048] The chemical composition of the red mud, by weight percentage, includes: Fe2O3 30%, Al2O3 20%, TiO 22%, CaO 30%, MgO 10%, and SiO 25%.

[0049] The chemical composition of manganese ore, by weight percentage, includes: MnO2 40%, Fe2O3 25%, SiO2 10%, Al2O3 10%, and CaO 10%.

[0050] The chemical composition of non-metallic tailings, by weight percentage, includes: SiO2 50%, Al2O3 15%, Fe2O3 10%, CaO 15%, and MgO 8%.

[0051] A method for preparing low-temperature fast-firing ceramic bricks based on industrial solid waste includes the following steps:

[0052] (1) Hydenite, diopside, perlite, spodumene and dolomite were coarsely crushed by a jaw crusher, then finely crushed by a ball mill, and finally screened by a vibrating screen to obtain powder A with a particle size of less than 0.5 mm; red mud, manganese slag and non-metallic tailings were coarsely crushed by a hammer crusher, then finely crushed by a vertical mill, and finally screened by an air classifier to obtain powder B with a particle size of less than 0.1 mm; then powder A and powder B were placed in a drying oven and dried at 105℃ for 4 hours to obtain dry powder A and dry powder B with a moisture content of less than 1%; then dry powder A and dry powder B were mixed to obtain powder.

[0053] (2) Add the powder obtained in step (1) to a sodium humate solution with a concentration of 3 g / L (the mass concentration of the powder in the sodium humate solution is 1.25 g / L), stir, centrifuge and dry to obtain the surface-modified powder; then sieve or classify the surface-modified powder to obtain pre-made powder with a particle size of 0.3 mm.

[0054] (3) Add water (the mass ratio of material to water is 4:1), polyacrylic acid cellulose (0.5 wt% of the pre-powder) and polyethylene glycol (0.5 wt% of the pre-powder) to the pre-powder obtained in step (2), mix them, and then spray granulate to obtain pre-powder.

[0055] (4) After pressing the green powder obtained in step (3) into shape, it is fired in a kiln (firing temperature is 950℃, firing cycle is 40min) to obtain the low-temperature fast-firing ceramic brick sample based on industrial solid waste in this embodiment.

[0056] Example 2

[0057] A low-temperature fast-firing ceramic brick based on industrial solid waste, the raw material components of which, by weight, include:

[0058]

[0059] The chemical composition of the red mud, by weight percentage, includes: Fe2O3 35%, Al2O3 15%, TiO 23%, CaO 25%, MgO 10%, and SiO 25%.

[0060] The chemical composition of manganese ore, by weight percentage, includes: MnO2 42%, Fe2O3 23%, SiO2 12%, Al2O3 10%, and CaO 10%.

[0061] The chemical composition of the non-metallic tailings, by weight percentage, includes: SiO2 45%, Al2O3 12%, Fe2O3 8%, CaO 15%, and MgO 10%.

[0062] A method for preparing low-temperature fast-firing ceramic bricks based on industrial solid waste includes the following steps:

[0063] (1) Hydenite, diopside, perlite, spodumene and dolomite were coarsely crushed by a jaw crusher, then finely crushed by a ball mill, and finally screened by a vibrating screen to obtain powder A with a particle size of less than 0.5 mm; red mud, manganese slag and non-metallic tailings were coarsely crushed by a hammer crusher, then finely crushed by a vertical mill, and finally screened by an air classifier to obtain powder B with a particle size of less than 0.1 mm; then powder A and powder B were placed in a drying oven and dried at 105℃ for 4 hours to obtain dry powder A and dry powder B with a moisture content of less than 1%; then dry powder A and dry powder B were mixed to obtain powder.

[0064] (2) Add the powder obtained in step (1) to a sodium humate solution with a concentration of 2 g / L (the mass concentration of the powder in the sodium humate solution is 1.45 g / L), stir, centrifuge and dry to obtain the surface-modified powder; then sieve or classify the surface-modified powder to obtain pre-made powder with a particle size of 0.01-0.5 mm.

[0065] (3) Add water (the mass ratio of material to water is 4:1), polyacrylic acid cellulose (0.4 wt% of the pre-powder) and polyethylene glycol (0.4 wt% of the pre-powder) to the pre-powder obtained in step (2), mix them, and then spray granulate to obtain pre-powder.

[0066] (4) After pressing the raw powder obtained in step (3) into shape, it is fired in a kiln (firing temperature is 900℃, firing cycle is 35min) to obtain the low-temperature fast-firing ceramic brick sample based on industrial solid waste in this embodiment.

[0067] Example 3

[0068] A low-temperature fast-firing ceramic brick based on industrial solid waste, the raw material components of which, by weight, include:

[0069]

[0070] The chemical composition of the red mud, by weight percentage, includes: Fe2O3 32%, Al2O3 18%, TiO 24%, CaO 25%, MgO 12%, and SiO 25%.

[0071] The chemical composition of manganese ore, by weight percentage, includes: MnO2 45%, Fe2O3 20%, SiO2 15%, Al2O3 10%, and CaO 5%.

[0072] The chemical composition of the non-metallic tailings, by weight percentage, includes: SiO2 45%, Al2O3 20%, Fe2O3 10%, CaO 10%, and MgO 10%.

[0073] A method for preparing low-temperature fast-firing ceramic bricks based on industrial solid waste includes the following steps:

[0074] (1) Hydenite, diopside, perlite, spodumene and dolomite were coarsely crushed by a jaw crusher, then finely crushed by a ball mill, and finally screened by a vibrating screen to obtain powder A with a particle size of less than 0.5 mm; red mud, manganese slag and non-metallic tailings were coarsely crushed by a hammer crusher, then finely crushed by a vertical mill, and finally screened by an air classifier to obtain powder B with a particle size of less than 0.1 mm; then powder A and powder B were placed in a drying oven and dried at 105℃ for 4 hours to obtain dry powder A and dry powder B with a moisture content of less than 1%; then dry powder A and dry powder B were mixed to obtain powder.

[0075] (2) Add the powder obtained in step (1) to a sodium humate solution with a concentration of 3 g / L (the mass concentration of the powder in the sodium humate solution is 1.35 g / L), stir, centrifuge and dry to obtain the surface-modified powder; then sieve or classify the surface-modified powder to obtain pre-made powder with a particle size of 0.01-0.5 mm.

[0076] (3) Add water (the mass ratio of material to water is 4:1), polyacrylic acid cellulose (0.3 wt% of the pre-powder) and polyethylene glycol (0.6 wt% of the pre-powder) to the pre-powder obtained in step (2) and mix them. Then spray granulate to obtain pre-powder.

[0077] (4) After pressing the raw powder obtained in step (3) into shape, it is fired in a kiln (firing temperature is 1000℃, firing cycle is 50min) to obtain the low-temperature fast-firing ceramic brick sample based on industrial solid waste in this embodiment.

[0078] Comparative Example 1

[0079] The only difference between Comparative Example 1 and Example 1 is that in the raw material composition of the low-temperature fast-fired ceramic brick based on industrial solid waste in Comparative Example 1, equal amounts of talc and calcium carbonate are used to replace the hedonicite and dolomite in Example 1. The types and amounts of other raw materials and the preparation method of the low-temperature fast-fired ceramic brick based on industrial solid waste are the same as those in Example 1.

[0080] Comparative Example 2

[0081] The only difference between Comparative Example 2 and Example 1 is that in the raw material composition of the low-temperature fast-fired ceramic brick based on industrial solid waste in Comparative Example 2, equal amounts of talc and zeolite are used to replace diopside and perlite in Example 1. The types and amounts of other raw materials and the preparation method of the low-temperature fast-fired ceramic brick based on industrial solid waste are the same as those in Example 1.

[0082] Comparative Example 3

[0083] The only difference between Comparative Example 3 and Example 1 is that in the raw material composition of the low-temperature fast-fired ceramic brick based on industrial solid waste in Comparative Example 3, an equal amount of potassium feldspar is used to replace spodumene in Example 1. The types and amounts of other raw materials and the preparation method of the low-temperature fast-fired ceramic brick based on industrial solid waste are the same as those in Example 1.

[0084] Comparative Example 4

[0085] The only difference between Comparative Example 4 and Example 1 is that the preparation method of low-temperature fast-fired ceramic bricks based on industrial solid waste in Comparative Example 4 does not include the step (2) of surface modification of powder with sodium humate.

[0086] Performance testing

[0087] The ceramic tile samples prepared in Examples 1-3 and Comparative Examples 1-4 were subjected to mechanical and corrosion resistance tests, and their internal and surface appearances were observed. Specifically: the compressive strength of the samples was tested according to "GT / B 4740-1999 Test Method for Compressive Strength of Ceramic Materials"; the water absorption rate was tested according to "GB / T 4100-2015 Ceramic Tiles"; and the corrosion resistance was tested according to "GBT 3810.13-2016 Test Methods for Ceramic Tiles Part 13: Determination of Chemical Resistance". The test results are shown in Table 1.

[0088] Table 1: Performance Comparison of Samples from Examples 1-3 and Comparative Examples 1-4

[0089] sample Water absorption rate (%) Compressive strength (MPa) Corrosion resistance Internal and surface quality Example 1 0.03 45 good No defects such as cracks, bubbles, or color differences Example 2 0.03 42 good No defects such as cracks, bubbles, or color differences Example 3 0.03 40 good No defects such as cracks, bubbles, or color differences Comparative Example 1 0.1 32 Poor Defects include cracks, bubbles, and color differences. Comparative Example 2 0.3 28 Poor Defects include cracks, bubbles, and color differences. Comparative Example 3 0.1 25 Poor Defects include cracks, bubbles, and color differences. Comparative Example 4 0.3 26 Poor Defects include cracks, bubbles, and color differences.

[0090] As shown in Table 1, the low-temperature fast-fired ceramic brick samples based on industrial solid waste prepared in Examples 1-3 of the present invention have high compressive strength, low water absorption and good corrosion resistance. They have no cracks, bubbles or color differences in the internal and surface appearance, and no obvious defects.

[0091] Compared to Example 1, Comparative Examples 1-4, due to the use of other equal amounts of raw materials or the absence of sodium humate for surface modification of the powder, exhibited lower compressive strength, water absorption, and corrosion resistance than Example 1. Furthermore, they displayed varying degrees of defects such as cracks, bubbles, and color differences both internally and on the surface. This demonstrates that the present invention, using raw materials such as heddenphosphoten, diopside, perlite, spodumene, and dolomite, can effectively improve the mechanical properties and corrosion resistance of ceramic tiles. Moreover, the use of sodium humate for surface modification of the powder effectively improves the internal and surface appearance of the ceramic tiles. Therefore, this invention has significant industrial application value and environmental protection implications.

[0092] For those skilled in the art, several simple deductions or substitutions can be made without departing from the inventive concept, without requiring creative effort. Therefore, any simple improvements made to this invention by those skilled in the art based on the disclosure of this invention should be within the scope of protection of this invention. The above embodiments are preferred embodiments of this invention, and all processes similar to this invention and equivalent changes should fall within the scope of protection of this invention.

Claims

1. A low temperature fast fired ceramic tile based on industrial solid waste, characterized by, The raw material components include low-temperature ceramic raw materials and industrial solid waste raw materials, and the mass ratio of the low-temperature ceramic raw materials to the industrial solid waste raw materials is (2-3):1; The low-temperature ceramic raw materials include, by weight fraction: Hayden augite 10-15 parts; Diopside 15-18 parts; Pearlite 12-20 parts; Spodumene 10-18 parts; Dolomite 10-15 parts; The industrial solid waste raw materials include, by weight fraction: Red mud 10-15 parts; Manganese slag 5-10 parts; Non-metallic tailings 5-10 parts; The chemical composition of the manganese slag includes, by weight percentage: MnO2 40-50%, Fe2O3 20-30%, SiO2 10-20%, Al2O3 10-20%, CaO 5-15%; The chemical composition of the non-metallic tailings includes, by weight percentage: SiO2 40-60%, Al2O3 10-20%, Fe2O3 5-15%, CaO 10-20%, MgO 5-15%; The low-temperature fast-fired ceramic tile based on industrial solid waste is prepared by a preparation method including the following steps: (1) After the low-temperature ceramic raw materials and the industrial solid waste raw materials are respectively crushed, sieved, and dried, they are mixed to obtain a powder; (2) After the powder is surface modified, it is sieved or graded to obtain a pre-prepared powder; (3) After the pre-prepared powder is made into a slurry, it is spray granulated to obtain a green powder; (4) After the green powder is pressed into a shape, it is fired in a kiln to obtain the low-temperature fast-fired ceramic tile based on industrial solid waste; the firing temperature is 900-1000°C, and the firing period is 35-50 min.

2. The low temperature fast firing ceramic tile based on industrial solid waste according to claim 1, characterized by, The chemical composition of the red mud includes, by weight percentage: Fe2O3 30-35%, Al2O3 15-25%, TiO2 1-5%, CaO 25-35%, MgO 10-20%, SiO2 5-15%.

3. The low temperature fast firing ceramic tile based on industrial solid waste according to claim 1, characterized by, In step (1), the particle size of the powder is less than 0.1 mm.

4. The low temperature fast firing ceramic tile based on industrial solid waste according to claim 1, characterized by, In step (2), the surface modification step is: the powder is added to a sodium humate solution with a concentration of 1-5 g / L, stirred, centrifuged, and dried to obtain the surface-modified powder; the mass concentration of the powder in the sodium humate solution is 1-1.5 g / L; and the particle size of the pre-prepared powder is 0.01-0.5 mm.

5. The low temperature fast firing ceramic tile based on industrial solid waste according to claim 1, characterized by, In step (3), water, a reinforcing agent, and a plasticizer are added to the slurry; the reinforcing agent includes polyacrylic cellulose, and the plasticizer includes polyethylene glycol; the addition amount of the reinforcing agent is 0.3-0.6 wt% of the powder, and the addition amount of the plasticizer is 0.3-0.6 wt% of the powder.

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