Sintered building block using industrial solid waste and manufacturing method thereof
By making ore dressing waste slag and coal gangue into sintered blocks, the problems of industrial solid waste accumulation and traditional brick production pollution are solved, resource recycling and green building goals are achieved, and costs and environmental impacts are reduced.
Patent Information
- Application Number
- CN202411475763.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-01-07
AI Technical Summary
The accumulation of industrial solid waste such as ore dressing waste slag and coal gangue occupies land resources, which may cause environmental pollution. In addition, traditional brick production relies on natural resources such as clay, which has problems of high energy consumption and serious pollution.
Sintered blocks are made of industrial solid waste such as ore-dressing waste slag and coal gangue, and are manufactured through crushing, screening, mixing, water mixing, aging, high-pressure mold compression, drying, heating and sintering and cooling processes to form high-quality buildings Material.
Effectively convert industrial solid waste into building materials, improve resource recycling rate, reduce land occupation, reduce environmental pollution and building materials costs, achieve green building goals, and improve the physical and thermal insulation performance of sintered blocks.
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Figure CN119263779A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of green wall materials, and in particular relates to a sintered building block utilizing industrial solid waste and a manufacturing method thereof. Background Art
[0002] In the related technology, with the continuous development of industrial production, the generation of a large amount of industrial solid waste has become an environmental problem that needs to be solved urgently. Especially in the mining and coal industries, the accumulation of wastes such as ore dressing waste and coal gangue not only occupies a large amount of land resources, but also may pollute the surrounding environment. For example, ore dressing waste contains minerals and other chemical components that have not been completely extracted. If they are not treated, they may pollute the soil and groundwater. Coal gangue may also release harmful substances during the stacking process, and the land resources it occupies cannot be effectively utilized.
[0003] At present, the traditional methods for dealing with these industrial solid wastes mainly include stacking, landfilling, etc. These methods not only occupy a large amount of land resources, but also easily cause secondary pollution.
[0004] In the field of building materials, traditional brick production mainly relies on natural resources such as clay and shale, which not only consumes a large amount of natural resources, but also has problems such as high energy consumption and serious pollution in the production process. Summary of the invention
[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a sintered building block using industrial solid waste.
[0006] In order to achieve the above object, the present invention provides the following technical solutions:
[0007] The present invention provides a sintered building block using industrial solid waste, comprising a building block body, wherein the building block body is made of industrial solid waste, wherein the industrial solid waste comprises ore dressing waste residue and coal gangue, wherein the ore dressing waste residue is waste residue after iron and titanium are extracted from vanadium-titanium magnetite.
[0008] Furthermore, the mass of the mineral processing waste is p1, and the mass of the coal gangue is p2, satisfying: 1≤p1 / p2≤6.
[0009] Further, the mass of the ore dressing waste is p1, and the mass of the coal gangue is p2, satisfying: p1:p2=5:5; or the mass of the ore dressing waste is p1, and the mass of the coal gangue is p2, satisfying: p1:p2=7:3.
[0010] Furthermore, the ore dressing waste includes: ore dressing tailings, the diameter of the ore dressing tailings is d1, satisfying: 0.074mm≤d1≤2mm; ore dressing tailings mud, the diameter of the ore dressing tailings mud is d2, satisfying: d2<0.074mm; wherein the diameter of the coal gangue is d3, satisfying: d3≤3.0mm.
[0011] Furthermore, the mass of the ore dressing tailings is m1, and the mass of the ore dressing tailings is m2, which satisfies: 7≤m1 / m2≤11, and m1+m2=p1.
[0012] Furthermore, the mass of the ore dressing tailings is m1, and the mass of the ore dressing tailings is m2, satisfying: m1:m2=9:1.
[0013] Furthermore, the block body is provided with a weight-reducing hole, and at least one end of the weight-reducing hole in the length direction, the width direction and / or the height direction is open.
[0014] The method for manufacturing a block according to the present invention is briefly described below.
[0015] The block manufacturing method of the present invention is applicable to the sintered blocks using industrial solid waste as described in any one of the above embodiments. The block manufacturing method according to the present invention includes: crushing, screening, mixing, adding water and stirring the mineral processing waste slag and the coal gangue to form raw materials; introducing the raw materials into a mold and pressing the raw materials into bricks using high pressure; the bricks are sequentially dried, heated, sintered and cooled to form the block body.
[0016] Furthermore, before introducing the raw materials into the mold, the method also includes: placing the raw materials into an aging bin for aging for 48 hours to 72 hours.
[0017] Furthermore, during the aging of the raw materials, water is sprinkled on the raw materials to achieve dust reduction treatment on the raw materials; water is added again and stirred before the aged raw materials are introduced into the mold.
[0018] The present invention has at least the following advantages:
[0019] 1. This application can effectively transform industrial solid waste into valuable building materials, improve the recycling rate of resources, reduce the land resources occupied by industrial solid waste stacking, avoid possible environmental pollution, and help achieve the goal of green building;
[0020] 2. This application also reduces the cost of building materials, because the cost of using industrial solid waste is much lower than that of traditional brick-making materials. At the same time, the calorific value of coal gangue itself is used for sintering, which reduces the consumption of fossil fuels and reduces carbon emissions;
[0021] 3. The sintered blocks of the present application are of good quality and can be applied to any wall material, that is, the sintered blocks of the present application can be applied to load-bearing walls and non-load-bearing walls to meet the requirements of construction projects, and the sintered blocks of the present application have good appearance quality and regular geometric dimensions.
[0022] Other advantages, objectives and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art may be taught from the practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:
[0024] Figure 1 is a schematic diagram of a sintered building block of the present invention;
[0025] Figure 2 A schematic diagram of a sintered block of the present invention provided with weight-reducing holes;
[0026] Figure 3 Schematic diagram of the method for manufacturing a building block of the present invention.
[0027] The following are marked in the accompanying drawings:
[0028] 1. Block body; 11. Weight reduction hole. DETAILED DESCRIPTION
[0029] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.
[0030] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present invention. However, it is apparent to one of ordinary skill in the art that these specific details are not necessarily employed to practice the present invention. In other instances, well-known structures, circuits, materials, or methods are not specifically described in order to avoid obscuring the present invention.
[0031] Throughout the specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "one embodiment," "an embodiment," "an example," or "an example" appearing in various places throughout the specification do not necessarily all refer to the same embodiment or example. In addition, particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. In addition, it will be appreciated by those of ordinary skill in the art that the figures provided herein are for illustrative purposes and that the figures are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0032] In the description of the present invention, it should be understood that the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the scope of protection of the present invention.
[0033] Embodiment 1:
[0034] like Figure 1-Figure 3 As shown, the present invention provides a sintered building block using industrial solid waste, including: a building block body 1, the building block body 1 is made of industrial solid waste, the industrial solid waste includes: ore dressing waste slag and coal gangue, the ore dressing waste slag is the waste slag after iron and titanium are extracted from vanadium-titanium magnetite.
[0035] In some embodiments, the block body 1 is the main physical part of the sintered block, and the industrial solid waste is waste generated in one or more industrial production processes. Industrial solid waste includes mineral processing waste slag and coal gangue. The mineral processing waste slag is the waste left after the valuable metal components such as iron and titanium are removed by chemical or physical methods during the beneficiation of vanadium-titanium magnetite. Coal gangue is the waste generated in the process of coal mining and processing. Coal gangue usually contains a certain amount of heat, and coal gangue can be used to assist the sintering process.
[0036] In the prior art, since the raw materials of ore dressing waste slag and coal gangue have poor plasticity and are difficult to shape, other companies generally adopt the method of adding 15-45% clay or shale to improve the plasticity of the bricks, thereby realizing the manufacture of blocks.
[0037] It can be understood that the present application realizes the recycling of industrial solid waste by using mineral processing waste slag and coal gangue as raw materials to replace traditional brick-making materials (such as clay or shale) to manufacture building blocks, and utilizes the calorific value in coal gangue as an auxiliary energy source during the sintering process, thereby reducing the demand for external energy and contributing to energy conservation and emission reduction.
[0038] And because the sintered blocks of the present application are made by a sintering process, during the sintering process of the sintered blocks, the external high temperature will act on the bricks, and the coal gangue inside the bricks will also generate heat, thereby achieving high temperature effects both externally and internally, thereby realizing the manufacture of sintered blocks.
[0039] It should be noted that the sintered blocks of the present application are all made of industrial solid waste, that is, the materials of the sintered blocks of the present application only include mineral processing waste slag and coal gangue. At the same time, the sintered blocks of the present application have good molding effect and high quality.
[0040] Therefore, the present application can effectively transform industrial solid waste into valuable building materials, improve the recycling rate of resources, reduce the land resources occupied by industrial solid waste stacking, avoid possible environmental pollution, and help achieve the goal of green building.
[0041] Of course, this application also reduces the cost of building materials, because the cost of using industrial solid waste is much lower than that of traditional brick-making materials. At the same time, the calorific value of coal gangue itself is used for sintering, which reduces the consumption of fossil fuels and reduces carbon emissions.
[0042] In particular, the sintered blocks of the present application are of good quality and can be applied to any wall materials, that is, the sintered blocks of the present application can be applied to load-bearing walls and non-load-bearing walls to meet the requirements of construction projects, and the sintered blocks of the present application have good appearance quality and regular geometric dimensions.
[0043] It should be noted that there are a large number of ore dressing waste residues in Panzhihua and other places, and the ore dressing waste residues are usually used as backfill, resulting in extremely low development and utilization of ore dressing waste residues. However, the present application can use ore dressing waste residues to manufacture sintered blocks, so that the ore dressing waste residues can be reused, realizing the resource and large-scale utilization of industrial solid wastes.
[0044] In some embodiments, the block body 1 is provided with a weight-reducing hole 11, and the weight-reducing hole 11 is open at at least one end in the length direction, the width direction and / or the height direction.
[0045] In some embodiments, the weight-reducing hole 11 is open at one end in the length direction, width direction and / or height direction; in other embodiments, the weight-reducing hole 11 is through-set in the length direction, width direction and / or height direction, and different types of sintered blocks can be produced according to actual needs, which is not limited here.
[0046] It can be understood that by providing weight-reducing holes 11 in the sintered blocks, the overall weight of the sintered blocks can be significantly reduced, which brings convenience to transportation and construction. At the same time, the presence of the weight-reducing holes 11 increases the air content inside the sintered blocks. Air is a poor conductor of heat, so the thermal insulation performance of the sintered blocks can be improved. Of course, providing a plurality of weight-reducing holes 11 in the block body 1 can make the block body 1 of the present application form a structure similar to a porous brick and have the characteristics of a porous brick (porous bricks have good sound insulation and thermal insulation effects). At the same time, providing the weight-reducing holes 11 can reduce the amount of material used, thereby reducing the production cost of the sintered blocks.
[0047] It is worth mentioning that the open weight-reducing holes 11 can enhance the ventilation performance of the sintered blocks to a certain extent, and can be applied to certain specific scenarios (such as walls).
[0048] Embodiment 2:
[0049] In this embodiment, based on the first embodiment, the mass of the ore dressing waste is p1, the mass of the coal gangue is p2, and they satisfy: 1≤p1 / p2≤6.
[0050] In some embodiments, the ore dressing waste slag is the waste slag remaining after the iron and titanium elements are extracted during the vanadium-titanium magnetite beneficiation process, and the coal gangue is the rock waste generated during the coal mining and washing process. The relationship between the mass p1 of the ore dressing waste slag and the mass p2 of the coal gangue satisfies 1≤p1 / p2≤6.
[0051] It is understandable that the ore dressing waste provides the necessary mineral components, while the coal gangue can provide a certain amount of heat for the sintering process. The present application achieves a balance of the physical and chemical properties (strength, durability and thermal insulation performance, etc.) of the sintered blocks by controlling 1≤p1 / p2≤6, making the sintered blocks of the present application more suitable for use in construction projects. It is worth noting that the mass proportion of coal gangue can be appropriately adjusted according to the calorific value of the coal gangue itself, that is, the greater the calorific value of the coal gangue, the smaller the mass proportion of the coal gangue can be, and the smaller the calorific value of the coal gangue, the greater the mass proportion of the coal gangue can be.
[0052] It is worth mentioning that when p1 / p2>6, that is, when there is too much ore dressing waste, the formability and sintering effect of the sintered block are poor; when p1 / p2<1, that is, when there is too much coal gangue, the stability of the sintered block is poor.
[0053] According to some embodiments of the present invention, the mass of the ore dressing waste is p1, and the mass of the coal gangue is p2, satisfying: p1:p2=5:5; or the mass of the ore dressing waste is p1, and the mass of the coal gangue is p2, satisfying: p1:p2=7:3.
[0054] In some embodiments, when p1:p2=5:5 (i.e., the mass of the mineral processing waste slag is 1 times the mass of the coal gangue) and p1:p2=7:3 (i.e., the mass of the mineral processing waste slag is approximately 2.33 times the mass of the coal gangue), the physical and chemical properties of the sintered blocks are better, that is, the sintered blocks at this time have higher strength, better durability and better thermal stability, making the sintered blocks of the present application more suitable for use in various construction projects.
[0055] Embodiment three:
[0056] In this embodiment, on the basis of the second embodiment, the ore dressing waste residue includes: ore dressing tailings and ore dressing tailing mud, the diameter of the ore dressing tailings is d1, which satisfies: 0.074mm≤d1≤2mm, the diameter of the ore dressing tailing mud is d2, which satisfies: d2<0.074mm; wherein the diameter of the coal gangue is d3, which satisfies: d3≤3.0mm.
[0057] In some embodiments, the ore dressing tailings are fine-grained solid waste with a particle size between 0.074 mm and 2 mm, the ore dressing tailings are fine-grained solid waste with a particle size less than 0.074 mm, and the coal gangue are fine-grained solid waste with a particle size less than or equal to 3.0 mm.
[0058] By controlling the particle size of mineral processing tailings and mineral processing mud, the physical properties of sintered blocks, such as strength, density and porosity, can be better controlled; and the distribution of particles of different particle sizes in the mixture will affect the formability and sintering effect of the final product. The larger particle size of mineral processing tailings can provide better skeleton support, while the smaller particle size of mineral processing mud can fill the gaps and improve the density of the material; at the same time, the appropriate particle size distribution helps to improve the fluidity of the mixture, making it easier to form uniform and consistent bricks during the pressing process.
[0059] Therefore, by controlling the proportion of particles of different particle sizes in the mineral processing waste slag, the physical properties of the sintered blocks can be optimized, so that the sintered blocks have better strength and durability. Moreover, the appropriate particle size distribution helps to improve the molding quality of the bricks and reduce the defects of the bricks during the pressing process. At the same time, by precisely controlling the particle size, the sintering process can be optimized, energy consumption can be reduced, the production cost of the sintered blocks can be reduced, and the impact on the environment can be reduced.
[0060] That is, by controlling the particle size of mineral processing tailings and mineral processing mud, it can be ensured that the sintered blocks have good physical properties and molding quality, while helping to achieve efficient utilization of resources. The produced sintered blocks can meet the requirements of construction projects and have high strength and stability.
[0061] According to some embodiments of the present invention, the mass of the ore dressing tailings is m1, and the mass of the ore dressing tailings is m2, satisfying: 7≤m1 / m2≤11, and m1+m2=p1.
[0062] It can be understood that by controlling the mass ratio between mineral processing tailings and mineral processing mud to meet 7≤m1 / m2≤11, the physical properties of the sintered blocks can be improved, that is, the strength, density, porosity, etc. of the sintered blocks can be optimized, and at the same time it helps to improve the molding properties of the mixture, making it easier to form uniform and consistent bricks during the pressing process.
[0063] In some embodiments, assuming that the total mass of the ore dressing waste p1 is 100 kg, according to the requirement of 7≤m1 / m2≤11, the following example calculation can be performed:
[0064] If m1 / m2=7, then m1=87.5kg, m2=12.5kg.
[0065] If m1 / m2=11, then m1≈91.67kg, m2≈8.33kg.
[0066] Within this range, the specific ratio of mineral processing tailings and mineral processing tailings mud can be adjusted according to actual needs to achieve optimal performance and cost-effectiveness.
[0067] According to some embodiments of the present invention, the mass of the beneficiation tailings is m1, and the mass of the beneficiation tailings is m2, satisfying: m1: m2 = 9: 1. It can be understood that the above-mentioned setting can ensure that the sintered blocks have better strength, durability and stability, and at the same time can achieve precise control of the performance of the sintered blocks, ensuring that the product has excellent physical properties and molding quality in practical applications.
[0068] Embodiment 4:
[0069] This embodiment further proposes a block manufacturing method based on any of the above embodiments. The manufacturing method is applicable to the sintered blocks using industrial solid waste as described in any of the above embodiments. The block manufacturing method includes:
[0070] The ore dressing waste slag and coal gangue are crushed, screened, mixed, and stirred with water to form raw materials.
[0071] First, the ore dressing waste slag and coal gangue are crushed and screened, then mixed and stirred with water in a prescribed proportion to form raw materials suitable for processing, thereby ensuring the uniformity and appropriate particle size of the raw materials for subsequent molding and sintering.
[0072] The raw materials are introduced into the mold and pressed into bricks using high pressure.
[0073] The processed raw materials are introduced into special molds and compressed under high pressure to form bricks. High-pressure pressing helps to increase the density of the bricks, thereby enhancing the strength and stability of the final product.
[0074] The bricks are sequentially dried, heated, sintered and cooled to form a block body 1.
[0075] The pressed bricks are dried to remove excess moisture in preparation for subsequent sintering. The dried bricks are then gradually heated to the sintering temperature. Under high temperature conditions, the particles in the bricks are melted or semi-molten to form a solid whole. Finally, after sintering, the product is slowly cooled to room temperature to avoid cracking or other defects caused by rapid temperature changes.
[0076] It can be understood that through crushing, screening, mixing, adding water and stirring, it is ensured that the mineral processing waste slag and coal gangue are fully mixed and the particle size is moderate, providing a good foundation for subsequent molding. High-pressure pressing helps to increase the density and strength of the bricks and reduce voids, thereby improving the quality of the final product. Through the processes of drying, heating, sintering and cooling, the raw materials undergo chemical and physical changes at high temperatures to form a strong structure, thereby making high-quality sintered blocks.
[0077] Therefore, through strict process control, it is ensured that the sintered blocks have good physical properties such as strength, durability and stability. At the same time, through mold forming and strictly controlled sintering process, sintered blocks with regular size and stable quality can be produced.
[0078] It is worth mentioning that the sintered blocks produced by the above-mentioned block manufacturing method not only have good physical properties, but also meet the requirements of environmental protection and energy saving. They are suitable for use in various construction projects. They not only help solve the problem of industrial solid waste disposal, but also promote the development of green building materials.
[0079] Embodiment five:
[0080] Based on the fourth embodiment, this embodiment further includes: placing the raw materials into an aging bin for aging for 48 hours to 72 hours before introducing the raw materials into the mold.
[0081] It can be understood that the block manufacturing method of the present application includes, in sequence:
[0082] s1: crushing, screening, mixing, adding water and stirring the ore dressing waste slag and the coal gangue to form raw materials.
[0083] s2: Place the raw materials into an aging bin and age them for 48h-72h.
[0084] s3: introducing the raw materials into a mold and pressing the raw materials into a brick using high pressure.
[0085] s4: The bricks are sequentially dried, heated, sintered and cooled to form the block body 1.
[0086] It can be understood that the aging process is to make the moisture in the raw materials evenly distributed, so that there is enough time for physical and chemical reactions between the various components, thereby improving the molding properties of the raw materials; moreover, aging can improve the plasticity of the raw materials, making it easier to form uniform and consistent bricks during high-pressure pressing; at the same time, aging helps the interaction between the various components in the raw materials, thereby improving the strength and stability of the final product.
[0087] According to some embodiments of the present invention, during the aging of the raw materials, water is sprayed on the raw materials to achieve dust reduction treatment for the raw materials.
[0088] It is understandable that the block manufacturing method of the present application also includes:
[0089] s2.1: During the aging of raw materials, water is sprayed on the raw materials to achieve dust reduction treatment.
[0090] Watering can effectively suppress the flying of dust generated by raw materials during the aging process, reduce dust pollution in the working environment, significantly improve the production environment, and reduce health hazards to workers; moreover, an appropriate amount of water can help improve the molding properties of raw materials, making it easier to form uniform and consistent bricks during high-pressure pressing; at the same time, an appropriate amount of water can promote the interaction between the components in the raw materials and improve the strength and stability of the final product.
[0091] s2.2: Add water and stir the aged raw materials again before introducing them into the mold.
[0092] After aging, the raw materials are stirred for the second time, and during the second stirring, the raw materials are injected with water for the second time to further adjust the plasticity and fluidity of the raw materials. The second stirring can further even out the ingredients in the raw materials to ensure that all particles can be evenly distributed, and the second water injection can adjust the moisture content of the raw materials to make the raw materials reach the best plastic state for easy molding.
[0093] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.
Claims
1. A sintered block using industrial solid waste, characterized in that: include: The block body is made of industrial solid waste, and the industrial solid waste includes: ore dressing waste slag and coal gangue. The ore dressing waste slag is the waste slag after iron and titanium are extracted from vanadium-titanium magnetite.
2. The sintered building block using industrial solid waste according to claim 1, characterized in that: The mass of the mineral processing waste is p1, and the mass of the coal gangue is p2, which satisfies: 1≤p1 / p2≤6.
3. The sintered building block using industrial solid waste according to claim 2, characterized in that: The mass of the ore dressing waste is p1, and the mass of the coal gangue is p2, satisfying: p1:p2=5:5; or The mass of the ore dressing waste is p1, and the mass of the coal gangue is p2, satisfying: p1:p2=7:
3.
4. The sintered building block using industrial solid waste according to claim 2, characterized in that: The ore dressing waste residue comprises: Ore dressing tailings, wherein the diameter of the ore dressing tailings is d1, satisfying: 0.074mm≤d1≤2mm; Ore dressing tailings, wherein the diameter of the ore dressing tailings is d2, satisfying: d2<0.074mm; wherein The diameter of the coal gangue is d3, which satisfies: d3≤3.0mm.
5. The sintered building block using industrial solid waste according to claim 4, characterized in that: The mass of the ore dressing tailings is m1, and the mass of the ore dressing tailings is m2, which satisfies: 7≤m1 / m2≤11, and m1+m2=p1.
6. The sintered building block using industrial solid waste according to claim 5, characterized in that: The mass of the ore dressing tailings is m1, and the mass of the ore dressing tailings is m2, satisfying: m1:m2=9:
1.
7. The sintered building block using industrial solid waste according to claim 1, characterized in that: The block body is provided with a weight-reducing hole, and at least one end of the weight-reducing hole in the length direction, the width direction and / or the height direction is open.
8. A method for manufacturing a sintered block using industrial solid waste, the method being applicable to the sintered block using industrial solid waste as claimed in any one of claims 1 to 7, characterized in that: include: The ore dressing waste slag and the coal gangue are crushed, screened, mixed, and stirred with water to form raw materials; The raw materials are introduced into a mold and pressed into a brick by high pressure; The bricks are sequentially dried, heated, sintered and cooled to form the block body.
9. The method for manufacturing sintered blocks using industrial solid waste according to claim 8, characterized in that: Before introducing the raw materials into the mold, the method further includes: placing the raw materials into an aging bin for aging for 48 hours to 72 hours.
10. The method for manufacturing sintered blocks using industrial solid waste according to claim 9, characterized in that: During the aging of the raw materials, water is sprayed on the raw materials to achieve dust reduction treatment on the raw materials; Add water and stir the aged raw materials again before introducing them into the mold.
Citation Information
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