Solid waste ceramic outdoor environment-friendly fruit peel box

Abstract

This application discloses an outdoor environmentally friendly ceramic waste bin for solid waste, including a bin frame, a mounting base, and a top cover. The mounting base is located at the bottom of the bin frame, and the top cover is located at the top of the bin frame. Waste ceramic plates are arranged around the perimeter of the bin frame. This application utilizes a compound system of multiple industrial solid wastes, including construction waste ceramic slag and ceramic polishing mud. The proportion of solid wastes can be flexibly adjusted within a range, reducing the loss of natural resources and achieving the reduction, harmlessness, and resource recycling of industrial solid waste. By compounding fluxing agents and modifying the system, carbon emissions during production are reduced. Compared with traditional high-temperature long-time sintering processes for ceramics, this effectively improves energy saving and carbon reduction. The dry powder high-pressure pressing molding process, combined with high-temperature one-time sintering and curing technology, results in good compressive strength, impact resistance, and structural toughness, making it less prone to cracking, deformation, and breakage.

Description

Technical Field

[0001] This application relates to the technical field of waste bins, and more particularly to an outdoor environmentally friendly ceramic waste bin for solid waste. Background Technology

[0002] Outdoor waste bins are essential infrastructure in urban areas, parks, residential communities, and public squares. They are primarily used for outdoor waste collection and environmental sanitation maintenance, requiring high levels of weather resistance, structural stability, corrosion resistance, and lifespan. Currently, outdoor waste bins on the market are made of three materials: plastic, metal, and traditional ceramic. Each material presents its own set of problems during actual outdoor applications.

[0003] Plastic waste bins are a common product on the market. Plastic materials have weak resistance to ultraviolet aging and are prone to fading, cracking, and deformation under long-term exposure to the sun. In low-temperature environments, the material becomes more brittle and its impact resistance decreases, making it prone to breakage. In addition, waste plastic waste bins are difficult to degrade and have a low recycling rate. After long-term use and disposal, they are prone to generating solid waste pollution.

[0004] Metal waste bins are mostly made of stainless steel or galvanized steel, which have a certain structural strength and impact resistance. However, under complex working conditions such as outdoor rain, acid and alkali dust corrosion, and alternating temperature and humidity changes, the surface of the metal bin is prone to oxidation, rust, and paint peeling. This not only affects the appearance but also gradually reduces the structural stability and shortens the service life of the equipment.

[0005] Traditional ceramic waste bins are gradually replacing some plastic and metal waste bins due to their advantages of corrosion resistance, rust resistance, and neat appearance. However, traditional ceramic production is highly dependent on natural mineral raw materials such as kaolin, quartz, and feldspar. Long-term mining can easily cause environmental problems such as vegetation destruction, soil erosion, and ecological degradation, and the resource recycling rate is low.

[0006] Application content

[0007] This application aims to address, at least to some extent, the technical problems in the related art.

[0008] To achieve the above objectives, this application proposes an outdoor environmentally friendly waste bin made of solid waste ceramics, comprising a bin frame, a mounting base, and a top cover. The mounting base is located at the bottom of the bin frame, and the top cover is located at the top of the bin frame. Waste ceramic plates are arranged around the perimeter of the bin frame. The bin frame, mounting base, and top cover are all made of galvanized steel sheets. The waste ceramic plates are sintered from solid waste ceramic blanks. The solid waste ceramic blanks comprise the following raw materials in parts by weight: 60-85 parts industrial solid waste, 10-25 parts ceramic clay, 3-8 parts fluxing agent, 1-3 parts reinforcing modifier, and 20-35 parts deionized water.

[0009] The industrial solid waste is a mixture of two or more of the following in any proportion: construction waste porcelain slag, ceramic polishing mud, tailings waste slag, and fly ash.

[0010] The solid waste ceramic blank is formed by dry powder high pressure pressing molding process, with molding pressure controlled at 18-25MPa, and the formed blank is sintered and solidified at high temperature in one go.

[0011] In addition, the application may also include the following additional technical features:

[0012] Specifically, the industrial solid waste is a mixture of construction waste porcelain slag, ceramic polishing mud, and fly ash in a mass ratio of 4:3:2, and the moisture content of the industrial solid waste powder is ≤3%.

[0013] Specifically, the raw material ratio of the solid waste ceramic body is as follows: 72 parts industrial solid waste, 18 parts ceramic clay, 6 parts fluxing agent, 2 parts reinforcing modifier, and 28 parts deionized water; wherein, the ceramic clay is high-alumina ceramic clay with an alumina content ≥22%, a particle size of 100-140 mesh, and the mineral components include kaolinite and montmorillonite.

[0014] Specifically, the fluxing agent is a powder mixture composed of one or more of feldspar powder, dolomite powder, and talc powder in any proportion, and the particle size of the fluxing agent is 120-160 mesh, wherein the total content of potassium oxide and sodium oxide is ≥8%, and the total content of magnesium oxide and calcium oxide is ≥6%.

[0015] Specifically, the reinforcing modifier is a compound system composed of silica micro powder and alumina micro powder, wherein the mass ratio of silica micro powder to alumina micro powder is 2:1, and both silica micro powder and alumina micro powder are ultrafine powders with a spherical microcrystalline structure and uniform particle size distribution.

[0016] Specifically, the sintering temperature range of the solid waste ceramic blank is 1100-1250℃, the constant temperature holding sintering time is 2-4h, the sintering heating rate is 3-5℃ / min, and after sintering, it is naturally cooled to room temperature in the furnace.

[0017] Specifically, the outer surface of the fruit peel bin is coated with a solid waste environmental protection glaze. The raw materials of the solid waste environmental protection glaze include, by mass, 70-80 parts of waste glass powder, 3-5 parts of inorganic pigment, 5-8 parts of composite flux, and 12-22 parts of deionized water. The waste glass powder is made by crushing and grinding waste sodium-calcium-silicon glass, with a particle size of 100-150 mesh.

[0018] Specifically, the composite flux is a mixture of borax, boric acid, and spodumene powder in a mass ratio of 3:2:1, with a particle size of 150-200 mesh; the inorganic colorant is one or more of inorganic iron oxide, titanium oxide, and chromium oxide powder.

[0019] Specifically, the thickness of the solid waste environmental protection glaze is uniformly controlled between 0.3-0.8 mm. After the glaze is sprayed, it is cured by a low-temperature glaze firing process with a firing temperature of 750-850℃ and a holding time of 30-60 minutes.

[0020] The beneficial effects of the solid waste ceramic outdoor environmentally friendly waste bin proposed in this application are as follows:

[0021] 1. It adopts a compound system of multiple industrial solid wastes, including construction waste porcelain slag and ceramic polishing mud. The proportion of solid wastes can be flexibly adjusted within a range. It can consume a large amount of solid waste generated by the ceramic industry and industrial production, reduce the loss of natural resources, and realize the reduction, harmlessness and resource recycling of industrial solid waste.

[0022] 2. By combining fluxing agents and modification systems, and matching gradient heating and precise constant temperature sintering processes, the energy consumption of ceramic sintering can be effectively reduced, and carbon emissions during the production process can be reduced. Compared with the traditional high-temperature long-time sintering process for ceramics, the energy-saving and carbon-reducing effects are effectively improved.

[0023] 3. The dry powder high-pressure pressing molding process, combined with high-temperature one-time sintering and curing technology, effectively improves the bulk density and internal density of the blank, optimizes the grain bonding structure, and has good compressive strength, impact resistance and structural toughness. It can withstand outdoor wind and rain, temperature changes and snow extrusion, and is not prone to cracking, deformation and breakage. Attached Figure Description

[0024] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0025] Figure 1 This is a schematic diagram of an outdoor environmentally friendly ceramic waste bin for solid waste, as described in this application.

[0026] As shown in the figure: 1. Fruit peel bin frame; 2. Mounting base; 3. Top cover; 4. Waste ceramic plate. Detailed Implementation

[0027] To make the technical means, inventive features, objectives, and effects of this application easier to understand, the application is further described below with reference to specific illustrations. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0028] The present application will now be described in further detail with reference to the accompanying drawings.

[0029] Example 1

[0030] An outdoor environmentally friendly waste bin made of solid waste ceramics includes a bin frame 1, a mounting base 2, and a top cover 3. The mounting base 2 is located at the bottom of the bin frame 1, and the top cover 3 is located at the top of the bin frame 1. Waste ceramic plates 4 are arranged around the bin frame 1. The bin frame 1, the mounting base 2, and the top cover 3 are all made of galvanized sheet. The waste ceramic plates 4 are formed by sintering solid waste ceramic blanks.

[0031] The raw materials for solid waste ceramic green bodies are strictly formulated according to the following mass ratio: 72 parts industrial solid waste, 18 parts high-alumina ceramic clay, 6 parts fluxing agent, 2 parts reinforcing modifier, and 28 parts deionized water. This ratio is the optimal combination obtained through multiple orthogonal experiments, balancing high solid waste utilization, green body forming stability, and finished product mechanical properties, achieving a balance between resource utilization benefits and product performance. Specifically, the industrial solid waste is formulated with an optimal blend ratio of 4:3:2 of construction waste ceramic slag, ceramic polishing mud, and fly ash. The three solid waste components complement each other: construction waste ceramic slag provides skeletal support strength, ceramic polishing mud improves the fineness and molding plasticity of the raw materials, and fly ash fills the gaps in the powder and reduces sintering shrinkage. The moisture content of the powder after pretreatment is precisely controlled at 2.5%, effectively reducing the probability of molding defects. After each raw material component is accurately measured by a high-precision electronic scale, it is put into a closed high-speed mixer. It is first dry-mixed for 15 minutes, and the high-speed shear force is used to achieve uniform mixing of powder without segregation. Then, a certain amount of deionized water is added and wet-mixed for another 20 minutes to make the powder surface uniformly coated with moisture, prevent raw material agglomeration and stratification, and ensure that the distribution of raw material components in each batch is highly uniform, laying a solid foundation for the stability of subsequent high-pressure molding and high-temperature sintering.

[0032] Green body forming and sintering process

[0033] This embodiment employs a fully automated, closed-loop, high-pressure dry powder pressing molding process, adapted to the physical properties of the optimized raw materials. The uniformly mixed dry-wet composite powder is precisely fed into an integrated molding die for the waste bin, with the molding pressure consistently controlled at 22 MPa and a holding time of 30 seconds. This pressure parameter effectively removes air and gaps within the powder, ensuring tight bonding and rearrangement of the raw material particles, significantly improving the bulk density and structural uniformity of the blank. This effectively addresses the industry pain point of loose and easily cracked solid waste powder molding. The waste bin body, mounting base, and rainproof top cover are molded in a single integrated prefabricated blank, eliminating the need for secondary splicing and assembly, and completely avoiding water seepage and structural loosening problems caused by splicing gaps. The molded blank has a complete outline, regular edges and corners, no missing corners, and uniform density. The overall moisture content of the blank is uniform, with no localized unevenness in moisture content. The blank has high demolding strength and can be directly transported and sintered without long-term curing.

[0034] The formed green body does not need to be dried and allowed to stand. It is directly sent into an intelligent temperature-controlled high-temperature kiln to adopt a high-temperature one-time sintering and solidification process. This process eliminates the traditional secondary sintering and multiple firing processes of ceramics, effectively avoiding defects such as deformation, cracking and dimensional deviation caused by secondary processing. At the same time, it simplifies the production process and reduces energy consumption.

[0035] Specific sintering parameters are precisely controlled through testing: the sintering heating rate is kept constant at 4℃ / min, and the uniform gradient heating allows the moisture and residual trace gases inside the green body to be slowly and fully discharged, avoiding problems such as bulging, cracking, and delamination caused by rapid heating; after heating to 1180℃, the green body is held at a constant temperature for 3 hours. This temperature range can activate the sintering activity of solid waste components, clay, and additives, promote the full growth and densification of grains inside the raw materials, and achieve deep chemical bonding between the inorganic components of solid waste and high-alumina clay, significantly improving the overall density and structural stability of the green body; after sintering, the kiln heat source is turned off, and a natural slow cooling method is adopted to gradually release the sintering stress inside the green body, avoiding thermal stress cracking and structural embrittlement caused by rapid cooling, and finally obtaining an integrated solid waste ceramic matrix component with high density, extremely low porosity, stable structure, and excellent mechanical properties.

[0036] Preparation and curing of environmentally friendly glazes for solid waste

[0037] The glaze raw materials are prepared according to the optimal mass ratio: 75 parts waste glass powder, 4 parts inorganic pigment, 6 parts composite flux, and 18 parts deionized water.

[0038] This formulation optimizes the ratio of waste glass powder to flux, ensuring both the environmental friendliness of the glaze and improving its melt flowability and adhesion to the substrate. In this embodiment, iron oxide and titanium oxide are blended in a 1:1 ratio as inorganic colorants. These two colorants complement each other, exhibiting excellent high-temperature resistance and UV aging resistance, resulting in a weather-resistant gray glaze suitable for mainstream outdoor applications such as municipal roads, main urban thoroughfares, and public squares. The glaze has a stable and dirt-resistant tone, making it suitable for various urban landscapes. All glaze raw materials are fed into a planetary ball mill and ground for 30 minutes. This mechanical grinding refines the powder particle size and breaks up agglomerates. After grinding, the glaze is passed through a 200-mesh ultrafine sieve to effectively remove trace large particles and lumps, ensuring a fine, uniform glaze with good suspension and minimal sedimentation. This significantly improves the uniformity of subsequent spraying and the smoothness and gloss of the glaze surface.

[0039] The surface of the sintered ceramic substrate undergoes a fine post-treatment process, which involves high-pressure air gun dust removal, polishing with a special ceramic grinding disc, and rinsing with pure water to remove oil stains. This process thoroughly removes dust, oxide scale, oil stains, and impurities from the substrate surface, ensuring a clean, flat surface with uniform roughness. This provides a good base for glaze adhesion and strengthens the bonding force between the glaze and the substrate.

[0040] Fully automated intelligent spraying equipment is used to uniformly spray the prepared glaze onto the outer surface of the waste bin. The spray thickness is precisely controlled to 0.5mm, ensuring uniform thickness throughout the entire area without any thickness deviation, missed areas, glaze accumulation, or runs. After spraying, the surface is allowed to stand for 10 minutes to allow for natural leveling, enabling the surface tension of the glaze to be released evenly, resulting in a smooth and even glaze surface. The surface is then placed in a low-temperature glaze-firing kiln for curing, with a constant firing temperature of 800℃ and a holding time of 45 minutes. These low-temperature firing parameters allow the glaze to fully melt, spread, and penetrate into the pores of the ceramic substrate. The slow, low-temperature curing effectively preserves the glaze's activity, preventing glaze cracking and peeling. After naturally cooling to room temperature, the glaze exhibits extremely strong adhesion, high hardness, excellent abrasion resistance, and superior stain resistance, allowing it to withstand long-term outdoor weathering and UV corrosion.

[0041] Example 2

[0042] In this embodiment, the raw material proportions for the solid waste ceramic body are as follows: 60 parts industrial solid waste, 25 parts high-alumina ceramic clay, 8 parts fluxing agent, 3 parts reinforcing modifier, and 35 parts deionized water. This proportion belongs to a high-clay, high-additive, and medium-solid waste blending system. Relying on the excellent plasticity of high-alumina clay, the green body forming error tolerance is greatly improved, making it suitable for small-batch, complex-shaped waste bin production.

[0043] The industrial solid waste is prepared using a standard compound system of 4:3:2, consisting of construction waste porcelain slag, ceramic polishing mud, and fly ash. After pretreatment, the powder moisture content is precisely controlled at 2.8%, which is moderate and suitable for the molding characteristics of high-clay raw materials. Each raw material is metered with high precision and then fed into a mixer for differentiated mixing. Dry mixing for 12 minutes achieves initial uniform mixing of the powder, followed by wet mixing with deionized water for 18 minutes. Compared to the optimal embodiment, this method appropriately shortens the mixing time, adapting to the easy-to-mix and easily agglomerated characteristics of high-clay raw materials. While ensuring uniform integration of components, it avoids moisture loss and powder clumping caused by over-mixing, fully adapting to the molding and sintering characteristics of this formula, and ensuring stable green body molding.

[0044] Green body forming and sintering process

[0045] This embodiment employs a differentiated process scheme of low-pressure molding and low-temperature long-time sintering to suit the characteristics of raw materials with high clay content. A dry powder high-pressure pressing molding process is used, with the molding pressure set at 18 MPa, which is lower than the optimal embodiment. This effectively avoids problems such as delamination, peeling, and internal voids in high-clay powder under high pressure, resulting in a well-formed green body with regular shape, full edges and corners, dense structure, and a high yield rate. The sintering process employs a low-temperature, long-time sintering scheme, with a slow heating rate of 3℃ / min. This gradual heating provides ample time for the high-clay system green body to degas, dehydrate, and undergo crystal transformation, effectively removing free water, crystalline water, and trace gases from within the green body and preventing later-stage sintering cracking and bulging defects. The sintering temperature is controlled at 1100℃, falling within the low-temperature sintering range. This is matched with a raw material system containing high-clay and high-fluxing agents, and a constant-temperature holding time of 4 hours ensures the complete melting and sintering of the clay mineral components, promoting a tight bond between solid waste particles and the clay matrix, significantly improving the density and structural stability of the green body. After sintering, the green body is naturally and slowly cooled to room temperature, effectively eliminating sintering internal stress and further improving the crack resistance of the finished product. The toughness of the product is superior to that of products with conventional formulations.

[0046] Preparation and curing of environmentally friendly glazes for solid waste

[0047] In this embodiment, the raw material composition of the glaze layer is as follows: 70 parts waste glass powder, 3 parts inorganic pigment, 8 parts composite flux, and 22 parts deionized water. The high proportion of composite flux in the system can significantly reduce the melting temperature of the glaze, making it suitable for the low-temperature sintering process of this embodiment. High weather-resistant chromium oxide is selected as the inorganic pigment, which has extremely strong resistance to acids and alkalis, aging, and high temperatures. The resulting dark green glaze has a rich, natural, and fresh texture, making it highly suitable for outdoor natural scenes such as urban parks, ecological wetlands, garden scenic areas, and green walkways.

[0048] The glaze is ball-milled for 25 minutes to refine it before being sieved through a 180-mesh sieve, balancing fineness with melt flowability to avoid shrinkage and cracking caused by excessively fine powder. A thin-layer spraying process is employed, with the glaze layer thickness precisely controlled at 0.3mm. This thin glaze layer melts and solidifies quickly, making it well-suited for low-temperature sintering and completely avoiding the problems of blistering, cracking, and sagging that occur with thicker glazes at low temperatures. The glaze is fired at 750℃ for 60 minutes, using a long-duration, low-temperature, slow-curing process to allow the thin glaze layer to fully melt, spread, adhere evenly, and deeply penetrate the substrate surface. The resulting glaze layer has extremely strong adhesion, bonding tightly to the ceramic substrate, and exhibiting a natural and harmonious overall texture.

[0049] Example 3

[0050] In this embodiment, the raw material composition of the solid waste ceramic body is as follows: 85 parts industrial solid waste, 10 parts high-alumina ceramic clay, 3 parts fluxing agent, 1 part reinforcing modifier, and 20 parts deionized water. This is a relatively high solid waste blending ratio system in this scheme, which can maximize the utilization of industrial solid waste such as construction waste ceramic slag, ceramic polishing mud, and fly ash. The resource utilization rate of solid waste is at a high level, and the environmental benefits and solid waste disposal value are optimal. The industrial solid waste is strictly maintained at an optimal blending ratio of 4:3:2. Through a refined pretreatment process, the moisture content of the powder is strictly controlled to a low level of 2.2%. The low moisture content can effectively compensate for the defects of weak plasticity and easy loosening of high solid waste and low clay raw materials, and is suitable for the molding and sintering requirements of ultra-high solid waste blending system.

[0051] To address the issues of component segregation and uneven mixing in high-solid-waste powders, this embodiment employs a differentiated mixing process. The dry mixing time is extended to 20 minutes to fully disperse high-density solid-waste powder agglomerates, ensuring uniform dispersion of solid-waste particles of different sizes and densities. Then, wet mixing is performed for 15 minutes to precisely control the moisture coating effect, achieving uniform powder fusion under low moisture content conditions. This effectively improves common problems such as component stratification, localized material shortages, and uneven molding that often occur with high solid-waste ratios.

[0052] To address the technical challenges of weak plasticity and difficult particle bonding in the green body caused by high solid waste content, low clay content, and low additives in this embodiment, a targeted strengthening process of high-pressure molding and high-temperature short-time sintering is adopted. The molding pressure is increased to 25 MPa, which is the highest molding pressure among the three embodiments. By forcing the solid waste powder particles to tightly compress, interlock, and rearrange under ultra-high pressure, the bulk density and initial bonding strength of the green body are maximized, effectively compensating for the lack of plasticity of the raw materials, and ensuring that the green body with ultra-high solid waste content is completely formed, structurally dense, and does not break upon demolding.

[0053] The sintering process adopts a high-temperature short-time sintering scheme, with the heating rate increased to 5℃ / min. Rapid heating can shorten the low-temperature oxidation time of the green body, reduce the oxidation and deterioration of trace impurities in the solid waste components, and retain the core performance of the solid waste raw materials. The sintering temperature is increased to 1250℃. The high temperature can fully activate the sintering activity of inert solid waste particles, make up for the shortcomings of low fluxing agent dosage and insufficient melting assistance, and promote solid-phase sintering reaction between solid waste particles to form a stable and dense ceramic matrix structure.

[0054] Sintering can be completed in 2 hours at a constant temperature, ensuring that the sintered green body with ultra-high solid waste ratio is dense and meets performance standards, while significantly shortening the sintering cycle, improving production efficiency, reducing kiln energy consumption, and meeting the needs of large-scale solid waste resource utilization. After sintering, it cools naturally in the furnace, resulting in a stable structure and no stress defects in the finished product.

[0055] In this embodiment, the raw material ratio for the glaze layer is as follows: 80 parts waste glass powder, 5 parts inorganic colorant, 5 parts composite flux, and 12 parts deionized water. This also employs a high-solids waste glass powder blending system, echoing the high-solids waste design concept of the green body and comprehensively enhancing the product's resource utilization and environmental protection attributes. High-purity titanium dioxide is selected as the inorganic colorant, which possesses excellent ultra-whiteness, high light transmittance, UV resistance, and self-cleaning properties. The glaze undergoes a 35-minute long-term fine ball milling process and is sieved through a 200-mesh ultrafine sieve, resulting in finer powder particles, more uniform distribution, and excellent glaze suspension and spreadability.

[0056] Employing a thick-layer spraying process, the glaze layer thickness is controlled at 0.8mm, making it the thickest glaze layer among the three examples. This significantly improves the protective thickness, wear resistance, and impact resistance of the glaze surface, concealing fine textures of the body and enhancing the overall texture and grade of the product. It is compatible with a high-temperature, short-time glaze firing process, with a firing temperature of 850℃ and a holding time of 30 minutes. The high temperature rapidly activates the melting characteristics of the high-glass powder glaze, allowing the thick glaze to melt quickly, solidify densely, and produce a smooth, full, dense, and non-porous thick glaze layer with high hardness, scratch resistance, impact resistance, and excellent weather resistance. It is resistant to wear, discoloration, and aging even with long-term outdoor use, offering superior protective performance compared to conventional thin-glaze products.

[0057] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0058] The present application and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present application. The actual structure is not limited to this. In conclusion, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the spirit of the present application, such design should fall within the protection scope of the present application.

Claims

1. A solid waste ceramic outdoor environmentally friendly waste bin, comprising a bin frame (1), a mounting base (2), and a top cover (3), characterized in that, The mounting base (2) is located at the bottom of the fruit peel bin frame (1), and the top cover (3) is located at the top of the fruit peel bin frame (1). Waste ceramic plates (4) are provided around the fruit peel bin frame (1). The fruit peel bin frame (1), the mounting base (2) and the top cover (3) are all made of galvanized sheet. The waste ceramic plates (4) are formed by sintering solid waste ceramic blanks. The solid waste ceramic blanks include the following raw materials in parts by weight: 60-85 parts of industrial solid waste, 10-25 parts of ceramic clay, 3-8 parts of fluxing agent, 1-3 parts of reinforcing modifier, and 20-35 parts of deionized water. The industrial solid waste is a mixture of two or more of the following in any proportion: construction waste porcelain slag, ceramic polishing mud, tailings waste slag, and fly ash. The solid waste ceramic blank is formed by dry powder high pressure pressing molding process, with molding pressure controlled at 18-25MPa, and the formed blank is sintered and solidified at high temperature in one go.

2. The solid waste ceramic outdoor environmentally friendly waste bin according to claim 1, characterized in that, The industrial solid waste is a mixture of construction waste porcelain slag, ceramic polishing mud, and fly ash in a mass ratio of 4:3:2, and the moisture content of the industrial solid waste powder is ≤3%.

3. The solid waste ceramic outdoor environmentally friendly waste bin according to claim 1, characterized in that, The raw material composition of the solid waste ceramic body is as follows: 72 parts industrial solid waste, 18 parts ceramic clay, 6 parts fluxing agent, 2 parts reinforcing modifier, and 28 parts deionized water; wherein, the ceramic clay is high-alumina ceramic clay with an alumina content ≥22%, a particle size of 100-140 mesh, and the mineral components include kaolinite and montmorillonite.

4. The solid waste ceramic outdoor environmentally friendly waste bin according to claim 1, characterized in that, The fluxing agent is a powder mixture composed of one or more of feldspar powder, dolomite powder, and talc powder in any proportion. The particle size of the fluxing agent is 120-160 mesh, and the total content of potassium oxide and sodium oxide is ≥8%, and the total content of magnesium oxide and calcium oxide is ≥6%.

5. The solid waste ceramic outdoor environmentally friendly waste bin according to claim 1, characterized in that, The reinforcing modifier is a compound system composed of silica micro powder and alumina micro powder, with a mass ratio of silica micro powder to alumina micro powder of 2:

1. Both silica micro powder and alumina micro powder are ultrafine powders with a spherical microcrystalline structure and uniform particle size distribution.

6. The solid waste ceramic outdoor environmentally friendly waste bin according to claim 1, characterized in that, The solid waste ceramic blank is sintered at a temperature range of 1100-1250℃, with a constant temperature sintering time of 2-4 hours and a sintering heating rate of 3-5℃ / min. After sintering, it is naturally cooled to room temperature in the furnace.

7. The solid waste ceramic outdoor environmentally friendly waste bin according to claim 1, characterized in that, The outer surface of the fruit peel bin is coated with a solid waste environmental protection glaze. The raw materials of the solid waste environmental protection glaze include, by mass, 70-80 parts of waste glass powder, 3-5 parts of inorganic pigment, 5-8 parts of composite flux, and 12-22 parts of deionized water. The waste glass powder is made by crushing and grinding waste sodium-calcium-silicon glass, with a particle size of 100-150 mesh.

8. The solid waste ceramic outdoor environmentally friendly waste bin according to claim 7, characterized in that, The composite flux is a mixture of borax, boric acid, and spodumene powder in a mass ratio of 3:2:1, with a particle size of 150-200 mesh; the inorganic colorant is one or more of inorganic iron oxide, titanium oxide, and chromium oxide powder.

9. A solid waste ceramic outdoor environmentally friendly waste bin according to claim 7, characterized in that, The thickness of the solid waste environmental protection glaze is uniformly controlled between 0.3-0.8 mm. After the glaze is sprayed, it is cured by a low-temperature glaze firing process with a firing temperature of 750-850℃ and a holding time of 30-60 minutes.

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