Coal-based solid waste environmental protection up to standard and recycling multi-state separation extraction treatment system and method

Abstract

The application discloses a coal-based solid waste environmental protection standard-reaching and recycling multi-state separation and extraction treatment system and method, and relates to the field of solid waste treatment.The system comprises a solid crushing module for crushing large-particle coal-based solid waste into particles with a suitable particle size, a pollutant detection module for detecting pollutants in samples of coal-based solid waste and mixed liquid thereof, a mixed leaching module for fully mixing coal-based solid waste particles with an appropriate amount of water, and releasing and separating pollutants and beneficial substances from the coal-based solid waste through ultrasonic and circulating jet flow, and a multi-state separation module for carrying out multi-state separation operation on mixed slurry that does not meet the comprehensive emission standard after being treated by the mixed leaching module.The system realizes coal-based solid waste environmental protection standard-reaching and recycling through physical means such as ultrasonic waves, electrolysis and centrifugation, avoids the use of chemical reagents such as strong acid and strong base, realizes green environmental protection treatment and low-carbon emission, and extracts economically valuable fulvic acid mixed liquid from solid waste, thereby realizing waste-to-resource.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of coal-based solid waste resource utilization, and more specifically relates to a coal-based solid waste environmental protection standard reaching and multi-state separation extraction processing system and method. BACKGROUND

[0002] In the process of coal mining, a large amount of coal-based solid waste such as waste stone and waste slag will be produced. If these solid wastes cannot be treated scientifically, they will occupy a large amount of land resources as they continue to increase. In addition, the coal-based solid waste is rich in many types of minerals. With the gradual increase of precipitation, these minerals will enter the surrounding water sources with rainwater, thereby causing damage to the local soil environment and hydrological environment. Moreover, with the increase of mineral content in the soil environment and hydrological environment, they gradually have strong toxicity. In addition to having a significant impact on plant growth, it will also cause drinking water safety problems for people and livestock near the contaminated water source, directly endangering the drinking water health of the surrounding livestock and residents; secondly, the biological enrichment effect will also exacerbate the degree of harm.

[0003] In addition, the coal-based solid waste will generate and accumulate a certain content of organic humus under the action of a series of long-term and complex processes such as microbial decomposition and transformation of animal and plant residues, and geochemistry, biochemistry and thermochemistry. The organic humus has the following two characteristics: first, the main constituent elements are carbon, hydrogen, oxygen, nitrogen, sulfur, phosphorus and the like, the chemical structure is complex, and active groups such as carboxyl, phenolic hydroxyl, alcoholic hydroxyl and ketone group are contained, which is a complex and relatively stable macromolecular organic compound; second, it is a mixed system of a series of compounds with commonality and difference in composition, structure and property, usually in the state of black amorphous organic colloid and acidic. In addition, the humus also has a kind of soluble organic humic acid with acid function. The humic acid has wide application value, not only plays an important role in the color, acid-base degree, ion exchange capacity of soil organic matter and the adsorption and desorption process of heavy metals, but also has important influence on soil microbial activity, plant nutrient absorption and soil water retention. For example, a kind of biochemical fulvic acid preparation extracted from humic acid has stable and reliable resistance, growth promotion and yield increasing effects, and has the following advantages: (1) effectively regulates the degree of stomatal opening, reduces water transpiration, and makes the plant and soil retain more water; (2) effectively increases the content of chlorophyll, strengthens photosynthesis, speeds up metabolism, increases sugar and dry matter, kills soil nematodes, thereby improves the immunity and resistance to frost and disease of crops; at the same time, it can also promote seed germination and seedling growth, accelerate differentiation of growth points of crops, regulate growth, mature early, and improve yield and quality of crops, which is a new type of plant growth regulator; (3) as a pesticide slow-release synergist, it can reduce the toxicity of pesticides, reduce the harm to humans and animals, and reduce pesticide residues; (4) complexing trace elements, improving the absorption and transportation of trace elements by plants, and having obvious synergistic effect on crop growth; (5) soil conditioner, which can improve soil physical and chemical properties, improve soil porosity and air permeability, activate nutrients, and enhance soil water and fertilizer retention capacity, thereby improving soil physical conditions, especially for low-yield fields, acid soils, saline-alkali soils and other soils, the improvement effect is more remarkable, thereby reducing the damage to crops; (6) increasing the number of beneficial bacteria in the soil, thereby increasing the nitrogen content in the soil.

[0004] Therefore, the environmental protection standard recycling of coal-based solid waste and the extraction of humic acid are important directions for solving the solid waste problem of the coal industry and resource recycling and utilization, which have important significance for environmental protection, resource utilization and sustainable development. However, the complexity of the components of the coal-based solid waste makes the treatment and utilization complicated. At the same time, the corresponding technology and equipment cost is high, and the treatment process will further have negative impact on environmental safety, so an efficient and environmentally friendly equipment and process suitable for the environmental protection standard treatment of coal-based solid waste and the extraction of humic acid is urgently needed. SUMMARY

[0005] In view of the above defects or improvement needs of the prior art, the present application provides a coal-based solid waste environmental protection standard and recycling multi-state separation and extraction processing system and method, which realizes coal-based solid waste environmental protection standard recycling through physical means such as ultrasonic wave, electrolysis and centrifugation, avoids the use of chemical reagents such as strong acid and strong base, realizes green treatment and low carbon emission, and ensures that the treated coal-based solid waste will not cause secondary pollution through simulating the natural leaching process; through the use of modular design system, the coal-based solid waste can be conveniently converted into environmental protection standard materials for engineering and resource utilization according to the processing requirements; in addition, the technology can also extract economically valuable fulvic acid mixed solution from solid waste, realize waste-to-resource, and has low cost and high profit market potential.

[0006] In order to achieve the above purpose, the present application provides a coal-based solid waste environmental protection standard and recycling multi-state separation and extraction processing system, comprising

[0007] Solid crushing module: used for crushing coal-based solid waste with large particles into particles with suitable particle size to meet the requirements of economy and maximum allowable particle size of equipment;

[0008] Pollutant detection module: used for detecting the pollutants of the sample of coal-based solid waste and its mixed solution, and determining the over-standard pollutants and their concentrations;

[0009] Mixed leaching module: used for mixing coal-based solid waste particles with an appropriate amount of water, releasing and separating pollutants and beneficial substances from the coal-based solid waste through ultrasonic wave and circulating jet, and measuring the mixed solution and dry matter in the slurry to obtain the pollutant concentrations in the mixed solution and the dry matter; if the pollutant concentrations in the mixed solution and the dry matter meet the comprehensive emission standard, a filtering operation is directly performed to obtain environmental protection standard solids which can be used for engineering and resource utilization, and the filtered solution is re-injected into the mixed leaching module;

[0010] Multi-state separation module: used for performing multi-state separation operations of solid-liquid, acid-base and anion-cation on the slurry which does not meet the comprehensive emission standard after being treated by the mixed leaching module through centrifugation, electrophoresis, tip discharge, electro-oxidation and ultrasonic wave, and extracting fulvic acid mixed solution from the upper part to the next step of extraction and separation, and extracting coal-based solid waste mixed solution from the lower part to be filtered, and then detecting the solution and the residue by using the pollutant detection module; if the pollutant concentrations in the solution and the residue meet the comprehensive emission standard, the obtained environmental protection standard solids can be used for engineering and resource utilization, and the filtered solution is discharged into a sedimentation tank; if the pollutant concentrations in the solution and the residue do not meet the comprehensive emission standard, the solution and the residue are re-injected into the multi-state separation module for further separation; if the treatment is still not up to standard after three times, the residue is used as a filling core layer in a permanent storage site for toxic solid waste, and the solution is discharged into a sedimentation tank.

[0011] Further, the maximum allowable particle size is ≤10 cm.

[0012] Further, the ultrasonic time in the mixed leaching module should last for 30-60 minutes.

[0013] Further, the mixed leaching module comprises an ultrasonic jet mixer for releasing and separating pollutants from the coal-based solid waste, and the ultrasonic jet mixer is in a cylindrical shape.

[0014] Further, the ultrasonic jet mixer comprises a mixer body, a first mixing chamber, a first ultrasonic vibrator, a particle sprayer, a first solution inlet, a first solution inlet on-off valve, a second solution inlet, a second solution inlet on-off valve, a third solution inlet, a circulating jet inlet, a circulating solution on-off valve, a slurry total regulating valve, a slurry flow pump, and a slurry outlet valve; the mixer body is fixedly arranged on the construction ground; the first mixing chamber is fixedly arranged in the middle of the mixer body; the first ultrasonic vibrator is fixedly arranged on one side of the upper end of the first mixing chamber and in contact with the slurry at the lower end; the particle sprayer is fixedly arranged in the middle of the upper end of the first mixing chamber; the first solution inlet is fixedly arranged in the first mixing chamber; the first solution inlet on-off valve is fixedly arranged on the pipeline connected with the first solution inlet; the second solution inlet is fixedly arranged in the first mixing chamber at the same horizontal position on one side of the first solution inlet; the second solution inlet on-off valve is fixedly arranged on the pipeline connected with the first solution inlet on one side of the mixer body; a plurality of third solution inlets are fixedly arranged on one side of the first mixing chamber; the circulating jet inlet is fixedly connected with the second solution inlet on-off valve and the third solution inlets through a tee joint and corresponding pipelines; the circulating solution on-off valve is fixedly arranged on the pipeline at the lower end of the circulating jet inlet; the slurry total regulating valve is fixedly arranged on the pipeline connected with the bottom end of the first mixing chamber; the slurry flow pump is fixedly arranged on the pipeline between the circulating solution on-off valve and the slurry total regulating valve; and the slurry outlet valve is fixedly arranged on one side of the mixer body and on the pipeline connected with the pipeline between the circulating solution on-off valve and the slurry flow pump.

[0015] Further, the inner diameter of the first mixing chamber at the maximum diameter of the upper end is the inner diameter value of the first mixing chamber, which ranges from 1 m to 2 m.

[0016] Further, the multi-state separation module comprises a multi-state separation machine for solid-liquid, acid-base, and anion-cation separation by centrifugation, electrophoresis, sharp discharge, electro-oxidation, and ultrasonic, and the multi-state separation machine is in a cylindrical shape.

[0017] Further, the multi-state separator comprises a separator body, a second mixing chamber, a second ultrasonic vibrator, an electronic flowmeter, a mixed slurry inlet, a mixed slurry inflow valve, a mixed slurry extraction component, a first digital pH meter, a first diamond electrode, a centrifugal rotating component, a second diamond electrode, a bottom outflow valve, and a second digital pH meter; the separator body is fixedly arranged on the construction ground; the second mixing chamber is fixedly arranged in the middle of the separator body; the second ultrasonic vibrator is fixedly arranged on one side of the upper end of the second mixing chamber and in contact with the mixed slurry at the lower end; the electronic flowmeter is fixedly arranged on one side of the upper end of the second mixing chamber and in contact with the mixed slurry at the lower end; the mixed slurry inlet is fixedly arranged in the second mixing chamber and is communicated with the mixed leaching module through a pipeline; the mixed slurry inflow valve is fixedly arranged on the pipeline connected with the mixed slurry inlet; one end of the mixed slurry extraction component is fixedly connected with a storage device, and the other end is fixedly arranged in the middle of the upper end of the second mixing chamber and is open at the lower end; the first digital pH meter is fixedly arranged on the upper side of the lower end opening of the mixed slurry extraction component; the first diamond electrode is fixedly arranged in the middle of the second mixing chamber and surrounds the mixed slurry extraction component; the centrifugal rotating component is fixedly arranged on the conical outer side of the lower end of the second mixing chamber, and a motor for providing stable power is further arranged on one side of the centrifugal rotating component; the second diamond electrode is fixedly arranged on the inner side of the centrifugal rotating component at the lower end of the second mixing chamber; the bottom outflow valve is fixedly arranged on the pipeline passing through the separator body and communicating with the lower end of the second mixing chamber; and the second digital pH meter is fixedly arranged on the sidewall of the upper end of the second mixing chamber.

[0018] Further, the flow rate of the mixed slurry in the second mixing chamber at the electronic flowmeter is ≤20 m / s.

[0019] Another aspect of the present application provides a multi-state separation and extraction processing method for coal-based solid waste environmental protection up to standard and recycling, which is realized by using the coal-based solid waste environmental protection up to standard and recycling multi-state separation and extraction processing system, and comprises the following steps:

[0020] S1: After detecting the operation condition of the equipment, the coal-based solid waste is crushed to particles with a suitable particle size to meet the requirements of economy and the maximum allowable particle size of subsequent equipment;

[0021] S2: The particles are sampled and the pollutants are detected to determine the over-standard pollutants and their concentrations;

[0022] S3: inject the particles into the mixed leaching module, mix them with an appropriate amount of water, release and separate the pollutants and beneficial substances from the coal-based solid waste through ultrasonic and circulating jet, and measure the mixed liquid and the dry matter in the slurry through the pollutant detection module to obtain the pollutant concentrations in the mixed liquid and the dry matter, if the pollutant concentrations in the mixed liquid and the dry matter meet the comprehensive emission standard, directly perform the filtering operation to obtain the environmentally friendly solid that meets the standard and can be used for engineering and resource utilization, and the solution after filtering is re-injected into the mixed leaching module;

[0023] S4: if the pollutant concentrations in the mixed liquid and the dry matter in step S3 do not meet the comprehensive emission standard, inject the slurry into the multi-state separation module for solid-liquid, acid-base and anion-cation multi-state separation operation, and extract the fulvic acid mixed liquid from the top into the next step of extraction separation, and extract the coal-based solid waste mixed liquid from the bottom after filtering, and detect the solution and the residue using the pollutant detection module; if the pollutant concentrations in the solution and the residue meet the comprehensive emission standard, the obtained environmentally friendly solid that meets the standard can be used for engineering and resource utilization, and the filtered solution is discharged into a sedimentation tank; if the solution and the residue do not meet the comprehensive emission standard, re-enter the multi-state separation module for further separation; if the treatment is not up to standard after three times, the residue is used as a filling core layer in a permanent storage site for toxic solid waste, and the solution is discharged into a sedimentation tank.

[0024] Overall, compared with the prior art, the above technical solutions conceived by the present application can achieve the following beneficial effects:

[0025] 1. The treatment system of the present application realizes the reuse of coal-based solid waste that meets the environmental protection standard through physical means such as ultrasonic waves, electrolysis and centrifugation, avoids the use of chemical reagents such as strong acid and strong base, realizes green treatment and low carbon emission, and ensures that the treated coal-based solid waste will not cause secondary pollution by simulating the natural leaching process; by using a modular design system, the coal-based solid waste can be conveniently converted into environmentally friendly materials that can be used for engineering and resource utilization according to the treatment requirements; in addition, the technology can also extract the economically valuable fulvic acid mixed liquid from the coal-based solid waste, realizing the transformation of waste into treasure, and having low cost and high profit market potential.

[0026] 2. The treatment system of the present application uses the physical forces of high-frequency vibration generated by ultrasonic waves and circulating jet in the ultrasonic jet mixer to effectively break the combination between pollutants and solid particles in the coal-based solid waste, promote the release and separation of the pollutants, not only improve the recovery efficiency of the pollutants and reduce environmental pollution, but also have the characteristics of green, high efficiency and low energy consumption.

[0027] 3. The processing system of the present application can simultaneously target different types of pollutants through the polymorphic separation module, thereby improving the overall separation efficiency. Additionally, by combining physical and chemical methods, the use of chemical reagents is reduced, the risk of secondary pollution is lowered, and the separation of excessive pollutants and the enrichment of beneficial substances are effectively achieved, thereby creating conditions for resource recycling and reuse, reducing harmful substance emissions, protecting water and soil environments, and promoting sustainable development.

[0028] 4. The processing system of the present application reduces the use of tap water and achieves the extraction and enrichment of beneficial substances in coal-based solid waste by recycling environmentally compliant solutions in the mixed leaching operation.

[0029] 5. The processing system of the present application effectively improves resource utilization efficiency and product purity while reducing processing costs and environmental pollution by recycling non-compliant solutions for pollutant and beneficial substance separation in the polymorphic separation operation. Additionally, recycling separation enhances the flexibility and adaptability of the system, allowing the separation process to be optimized according to different processing needs. Furthermore, this method promotes waste recycling, supports a closed-loop production model, and helps achieve the cyclic use of raw materials and resources in the production process, embodying the concept of circular economy.

[0030] 6. The processing system of the present application effectively improves the timeliness, efficiency, and accuracy of pollution monitoring through the use of a pollutant detection module in the entire chain of pollutant treatment, saving costs and effectively managing environmental risks. Additionally, real-time data enable rapid response by workers, ensuring that the operation process complies with environmental regulations and avoiding potential legal liability and economic losses. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 The figure is a process flow diagram of the processing system of the present application.

[0032] Figure 2 The figure is a front view of the ball mill of the present application.

[0033] Figure 3 The figure is a structure diagram of the ultrasonic jet mixer of the present application.

[0034] Figure 4 The figure is a structure diagram of the polymorphic separation machine of the present application.

[0035] Figure 5 The figure is a schematic diagram of the tip discharge of the polymorphic separation module of the present application.

[0036] Figure 6 The figure is a schematic diagram of the separation of acid-base and anion-cation in the polymorphic separation module of the present application.

[0037] Figure 7A schematic diagram of discharging of the fulvic acid mixed solution and coal-based solid waste residue from the multi-state separation module of the embodiment of the present application is shown.

[0038] Figure 8 A schematic diagram of the steps of the treatment method of the embodiment of the present application is shown.

[0039] In all the drawings, the same reference signs represent the same technical features, specifically: 1-ball mill, 101-driving seat, 102-first motor, 103-reducer, 104-cylinder, 105-feeder, 106-bearing seat, 107-first support, 2-ultrasonic jet mixer, 201-mixer body, 202-first mixing cavity, 203-first ultrasonic vibrator, 204-particle sprayer, 205-first solution inlet, 206-first solution inlet on-off valve, 207-second solution inlet, 208-second solution inlet on-off valve, 209-third solution inlet, 210-circulating jet inlet, 211-circulating solution on-off valve, 212-mixed slurry total regulating valve, 213-mixed slurry flow pump, 214-mixed slurry outflow valve, 3-multi-state separator, 301-separator body, 302-second mixing cavity, 303-second ultrasonic vibrator, 304-electronic flowmeter, 305-mixed slurry inlet, 306-mixed slurry inflow valve, 307-mixed solution extraction component, 308-first digital pH meter, 309-first rhombic electrode, 310-centrifugal rotation component, 311-second rhombic electrode, 312-bottom outflow valve, 313-second digital pH meter. DETAILED DESCRIPTION

[0040] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application is further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application. In addition, the technical features involved in each embodiment of the present application described below can be combined with each other as long as they do not conflict with each other.

[0041] As shown in Figures 1 to 7 One embodiment of the present application provides a coal-based solid waste environmental protection standard reaching and recycling multi-state separation and extraction treatment system, which comprises:

[0042] Solid crushing module: used for crushing the coal-based solid waste with large particles into particles with suitable particle size to meet the requirements of economy and maximum allowable particle size of equipment;

[0043] Pollutant detection module: used for detecting the pollutants of the sample of the coal-based solid waste and its mixed solution to determine the over-standard pollutants and their concentrations;

[0044] The mixed leaching module is used for mixing coal-based solid waste particles with an appropriate amount of water, releasing and separating pollutants and beneficial substances from the coal-based solid waste through ultrasonic and circulating jet, and measuring the mixed liquid in the slurry and the dry matter in the slurry, so as to obtain the concentration of pollutants in the mixed liquid and the dry matter. If the concentration of pollutants in the mixed liquid and the dry matter meets the comprehensive emission standard, a filtering operation is directly performed to obtain environmentally friendly solid waste that meets the standard, which can be used for engineering and resource utilization. The solution after filtering is re-injected into the mixed leaching module.

[0045] The multi-state separation module is used for multi-state separation of slurry that does not meet the comprehensive emission standard after being treated by the mixed leaching module through centrifugation, electrophoresis, tip discharge, electro-oxidation and ultrasonic, and extracting yellow humic acid mixed liquid from the top into the next step of extraction and separation, and extracting coal-based solid waste mixed liquid from the bottom after filtration. The solution and the residue are detected by the pollutant detection module. If the concentration of pollutants in the solution and the residue meets the comprehensive emission standard, the obtained environmentally friendly solid waste that meets the standard can be used for engineering and resource utilization, and the filtered solution is discharged into a sedimentation tank. If the solution and the residue do not meet the comprehensive emission standard, they are re-injected into the multi-state separation module for further separation. If the treatment is not up to standard after three times, the residue is used as a filling core layer in a permanent storage site for toxic solid waste, and the solution is discharged into a sedimentation tank.

[0046] The coal-based solid waste that meets the environmental protection standard is recycled by physical means such as ultrasonic wave, electrolysis and centrifugation, avoiding the use of chemical reagents such as strong acid and strong base, realizing green treatment and low carbon emission, and ensuring that the treated coal-based solid waste will not cause secondary pollution by simulating the natural leaching process. By using the modular design system, the coal-based solid waste can be conveniently converted into environmentally friendly materials that meet the standard for engineering and resource utilization according to the treatment requirements. In addition, the technology can also extract yellow humic acid mixed liquid with economic value from solid waste, realizing waste-to-resource, and having low cost and high profit market potential.

[0047] Specifically, as Figures 1 to 2As shown, the solid crushing module is used to crush the large-particle coal-based solid waste to a suitable particle size to meet the requirements of economy and the maximum allowable particle size of subsequent treatment equipment, while the smaller particle size increases the surface area of the coal-based solid waste particles, which helps the over-standard soluble pollutants contained in the coal-based solid waste to enter the water as much as possible; it includes a ball mill 1, a vertical mill, a roller crusher or a hammer crusher; wherein the ball mill 1 is suitable for industrial large-scale production, can effectively grind the coal-based solid waste to a fine powder level, and is suitable for long-term continuous grinding of materials, has large processing capacity and strong adaptability; the vertical mill is suitable for grinding various materials with small hardness, has the advantages of high efficiency, energy saving, environmental protection, etc., and can quickly grind the coal-based solid waste to the required fineness when treating the coal-based solid waste; the roller crusher has the characteristics of simple structure, convenient maintenance and large processing capacity, and is suitable for medium and fine crushing of coal-based solid waste; the hammer crusher is suitable for coarse and medium crushing, and if the particle size of the coal-based solid waste is large, the hammer crusher can be used for preliminary crushing, and then subsequent fine crushing treatment is carried out.

[0048] Specifically, as shown in the figure, Figure 1 The pollutant detection module detects the pollutants in the crushed coal-based solid waste particles and the coal-based solid waste mixed solution based on standards such as "Standard for Pollution Control on the Storage and Landfill of General Industrial Solid Waste", "Solid Waste Leaching Toxicity Leaching Method Horizontal Oscillation Method" and "Integrated Wastewater Discharge Standard", etc., and determines the over-standard pollutants and their concentrations; it includes a gas chromatograph mass spectrometer or an ion selective electrode; wherein the gas chromatograph mass spectrometer combines the separation ability of gas chromatography and the identification ability of mass spectrometry, thereby realizing rapid separation, identification and quantitative analysis of organic pollutants in coal-based solid waste samples, including naphthalene, phenanthrene, pyrene, benzene, toluene or xylene; the ion selective electrode is mainly composed of an ion selective membrane, a reference electrode and an electrode body. When the target ion in the solution to be measured contacts the ion selective membrane, the ion carrier in the ion selective membrane reacts with the target ion in a specific chemical reaction, including ion exchange, coordination reaction or other interactions, causing changes in the charge distribution on the surface of the ion selective membrane, thereby causing changes in the potential. This change in potential is directly proportional to the concentration of the ion to be measured; the potential of the ion selective electrode is compared with the potential of the reference electrode. By comparing the potential difference between the two electrodes, the information of the concentration of the ion to be measured can be obtained, thereby quickly determining the concentration of specific pollutants in the coal-based solid waste, including cadmium ions, lead ions, chloride ions or bromide ions. The use of the pollutant detection module in the entire pollutant treatment chain helps to improve the timeliness, efficiency and accuracy of pollution monitoring, save costs and effectively manage environmental risks; and enables workers to respond quickly based on real-time data, ensuring that the operation process complies with environmental regulations, avoiding potential legal liability and economic losses, while transparent detection data enhances the public's trust in the environmental responsibility of enterprises, promoting technological innovation and the development of the environmental protection industry.

[0049] Specifically, as shown in the figure,Figure 1 and Figure 3 As shown in the figure, the mixed leaching module is used to release and separate pollutants and beneficial substances from coal-based solid waste. If the pollutant concentration in the mixed solution and the dry matter meets the comprehensive emission standard, direct filtration operation is carried out, and the obtained environmentally friendly solid that meets the standard can be used for engineering and resource utilization. The solution after filtration is re-injected into the mixed leaching module to improve the treatability and treatment efficiency of pollutants, which includes an ultrasonic jet mixer 2. The ultrasonic jet mixer 2 releases and separates pollutants from coal-based solid waste by ultrasonic and circulating jet methods, which includes a mixer body 201, a first mixing chamber 202, a first ultrasonic vibrator 203, a particle sprayer 204, a first solution inlet 205, a first solution inlet on-off valve 206, a second solution inlet 207, a second solution inlet on-off valve 208, a third solution inlet 209, a circulating jet inlet 210, a circulating solution on-off valve 211, a mixed slurry total regulating valve 212, a mixed slurry flow pump 213, and a mixed slurry outflow valve 214.

[0050] The mixer body 201 is cylindrical in shape and is fixed to the construction ground.

[0051] The first mixing chamber 202 is conical in shape and is fixed to the middle of the mixing body 201. The inner diameter at the largest diameter of the upper end is the inner diameter value of the first mixing chamber 202.

[0052] The first ultrasonic vibrator 203 is fixed to one side of the upper end of the first mixing chamber 202 and is in contact with the mixed slurry at the lower end, which is used to generate cavitation effect to further release pollutants from coal-based solid waste.

[0053] The particle sprayer 204 is fixed to the middle of the upper end of the first mixing chamber 202, and a horn-shaped opening is fixed below it, which is used to uniformly feed coal-based solid waste particles into the first mixing chamber 202.

[0054] The first solution inlet 205 is fixed in the first mixing chamber 202, which is used to inject tap water or filtered standard solution into the first mixing chamber 202.

[0055] The first solution inlet on-off valve 206 is fixed on the pipeline connected with the first solution inlet 205, which is used to control the entry of tap water or filtered standard solution into the first mixing chamber 202.

[0056] The second solution inlet 207 is fixed in the first mixing chamber 202 and is located at the same horizontal position on one side of the first solution inlet 205, which is used to inject mixed slurry into the first mixing chamber 202.

[0057] The second solution inlet switch valve 208 is fixed on the pipeline connected with the first solution inlet 205 and located at one side of the mixing machine body 201, for controlling the in and out of the mixed slurry at the second solution inlet 207;

[0058] The third solution inlets 209 are fixed on the conical surface of the first mixing cavity 202, for injecting the mixed slurry into the first mixing cavity 202;

[0059] The circulating jet inlet 210 is fixed at the lower end of the second solution inlet switch valve 208, and is fixedly connected with the second solution inlet switch valve 208 and the third solution inlet 209 through a tee joint and corresponding pipelines, for injecting the high-speed mixed slurry into the first mixing cavity 202 through the second solution inlet 207 and the third solution inlet 209, and further releasing the pollutants in the coal-based solid waste particles;

[0060] The circulating solution switch valve 211 is fixed on the pipeline at the lower end of the circulating jet inlet 210, for controlling the mixed slurry to enter the circulation;

[0061] The mixed slurry total regulating valve 212 is fixed on the pipeline connected with the bottom end of the first mixing cavity 202, for controlling the outflow of the mixed slurry from the first mixing cavity 202;

[0062] The mixed slurry flow pump 213 is fixed on the pipeline between the circulating solution switch valve 211 and the mixed slurry total regulating valve 212, for providing stable power;

[0063] The mixed slurry outflow valve 214 is fixed on the pipeline at one side of the mixing machine body 201 and connected with the pipeline between the circulating solution switch valve 211 and the mixed slurry flow pump 213, for controlling the outflow of the mixed slurry after completing the mixing and leaching operation;

[0064] In the mixed leaching operation of coal-based solid waste particles, the crushed coal-based solid waste particles are sprayed into the first mixing cavity 202 through the particle sprayer 204, and tap water is sprayed by opening the first solution inlet switch valve 206, so that the coal-based solid waste particles are fully mixed with water, at this time the circulating solution switch valve 211, the slurry total regulating valve 212 and the slurry outlet valve 214 are closed; when the liquid is filled, the first ultrasonic vibrator 203 is opened, at the same time, the second solution inlet switch valve 208, the circulating solution switch valve 211, the slurry total regulating valve 212 are opened, and the slurry flow pump 213 is opened, the bottom slurry is pumped out and re-injected into the main cavity of the ultrasonic jet particle mixing system at high speed through the circulating jet inlet 210; the ultrasonic jet mixing machine 2 utilizes the high-frequency vibration generated by the ultrasonic wave and the physical force of the circulating jet to effectively break the combination between the pollutants and the solid particles in the coal-based solid waste, and promote the release and separation thereof; the cavitation effect excited by the ultrasonic wave generates micro bubbles in the slurry, the rapid growth and collapse of these bubbles generate great local pressure changes, thereby destroying the combination between the pollutants and the coal-based solid waste particles; at the same time, the circulating jet further promotes the separation of the pollutants through the shearing force and turbulent effect of the high-speed fluid; this method not only improves the recovery efficiency of the pollutants and reduces environmental pollution, but also has the characteristics of high efficiency and low energy consumption; at the same time, by recycling the qualified solution, the use of tap water is reduced, and the extraction and enrichment of beneficial substances in the coal-based solid waste are realized.

[0065] Preferably, in order to meet the economic benefits, the inner diameter of the first mixing cavity 202 in the mixed leaching module is 1m-2m, and then the maximum allowable particle size of the coal-based solid waste particles can be represented according to the particle settling velocity formula in Stokes liquid as follows:

[0066]

[0067] In the formula, r is the particle radius, the unit is cm; v is the velocity, the unit is cm / s; μ is the viscosity of water, which is 0.8937 at room temperature; k is the particle shape coefficient, which is 0.22 for spherical particles; g is the acceleration of gravity, the unit is cm / s 2 ; d1 is the specific gravity of the particulate matter, which is obtained by dividing the density of the coal-based solid waste g / cm 3 by the density of water 1g / cm 3 ; d2 is the specific gravity of water, which is generally 1.

[0068] Preferably, the maximum allowable particle size is ≤10cm.

[0069] Preferably, according to the above formula, the inner diameter of the first mixing cavity and the rotating speed, the following data matching statistical table of the maximum allowable particle size, the inner diameter of the first mixing cavity and the rotating speed is obtained.

[0070] Table 1 Data matching statistical table of different equipment radius, rotating speed and maximum allowable particle size

[0071]

[0072] Preferably, the mixed leaching operation simulates the leaching process of the rock-soil body in nature, if each vibration is regarded as a 1-minute leaching process, assuming that there are 100 rainy days in a year, and the frequency is 20 kHz, the conversion into leaching time is shown in Table 2. At the same time, according to the technical requirements of Class II site in the Standard for Pollution Control on the Storage and Landfill of General Industrial Solid Waste, the thickness of the clay liner should be not less than 0.75 m, and the saturated permeability coefficient after compaction, artificial modification and other measures should be not greater than 1.0 x 10 - 7 cm / s, that is, it is required that the toxic substances in Class II solid waste reach the soil at least after about 86.81 years, and accordingly, the duration of the ultrasonic wave is at least 10 minutes, so the ultrasonic time in one mixed leaching operation should be 30-60 minutes to meet the requirements of general Class II solid waste filling site.

[0073] Table 2 Conversion table of simulated leaching time

[0074] Ultrasonic duration / min 1 5 10 60 600 Leaching time / year 8.33 41.67 83.33 500.00 5000.00

[0075] Specifically, as shown in Figure 1 , Figures 4 to 7 , the multi-state separation module is used for multi-state separation operation of solid-liquid, acid-base and anion-cation of the mixed slurry that does not meet the comprehensive emission standard after being treated by the mixed leaching module through centrifugation, electrophoresis, tip discharge, electrooxidation and ultrasonic, and the xanthic acid mixed solution is extracted from the upper part to the next extraction separation, and the coal-based solid waste mixed solution is extracted from the lower part and filtered, and the solution and the residue are detected by the pollutant detection module; if the pollutant concentration in the solution and the residue meets the comprehensive emission standard, the environment-friendly solid that meets the standard can be used for engineering and resource utilization, and the filtered solution is discharged into a sedimentation tank; if the solution and the residue do not meet the comprehensive emission standard, they are re-entered into the multi-state separation module for re-separation; if the treatment is not up to standard after three times, the residue is used as a filling core layer in a permanent storage site of toxic solid waste, and the solution is discharged into a sedimentation tank, so as to realize pollution reduction and resource reuse; and it comprises a multi-state separation machine 3; the multi-state separation machine 3 comprises a separation machine body 301, a second mixing cavity 302, a second ultrasonic vibrator 303, an electronic flowmeter 304, a mixed slurry inlet 305, a mixed slurry inflow valve 306, a mixed solution extraction component 307, a first digital pH meter 308, a first diamond electrode 309, a centrifugal rotation component 310, a second diamond electrode 311, a bottom outflow valve 312 and a second digital pH meter 313;

[0076] The separation machine body 301 is a cylinder as a whole and is fixed on the construction ground;

[0077] The second mixing cavity 302 has a circular upper end and a conical lower end, and is fixedly arranged in the middle of the separator body 301;

[0078] The second ultrasonic vibrator 303 is fixedly arranged on one side of the upper end of the second mixing cavity 302 and in contact with the slurry, and is used to generate cavitation effect to further release the pollutants from the coal-based solid waste;

[0079] The electronic flowmeter 304 is fixedly arranged on one side of the upper end of the second mixing cavity 302 and in contact with the slurry, and is used to measure the rotation speed of the slurry in the second mixing cavity 302;

[0080] The slurry inlet 305 is fixedly arranged in the second mixing cavity 302 and is connected to the mixing leaching module through a pipeline, and is used to inject the slurry that does not meet the comprehensive emission standard after the mixing leaching treatment or the multi-state separation treatment into the second mixing cavity 302;

[0081] The slurry inflow valve 306 is fixedly arranged on the pipeline connected to the slurry inlet 305, and is used to control the injection of the slurry that does not meet the comprehensive emission standard after the mixing leaching treatment or the multi-state separation treatment into the second mixing cavity 302;

[0082] The mixing liquid extraction component 307 has one end fixedly connected to a storage device and the other end fixedly arranged in the middle of the upper end of the second mixing cavity 302 and having an opening below, and can move up and down to stay in the immersed slurry, and is used to extract the fulvic acid mixing liquid into the next step of extraction separation;

[0083] The first digital pH meter 308 is fixedly arranged on the upper side of the opening below the mixing liquid extraction component 307, and is used to measure the pH value of the solution in the middle of the second mixing cavity 302;

[0084] The first diamond-shaped electrode 309 is fixedly arranged in the middle of the second mixing cavity 302 and surrounds the mixing liquid extraction component 307;

[0085] The centrifugal rotation component 310 is fixedly arranged on the outer side of the conical lower end of the second mixing cavity 302, and a motor is further arranged on one side of the centrifugal rotation component 310 to provide stable power, and is used to drive the slurry in the second mixing cavity 302 to rotate;

[0086] The second diamond-shaped electrode 311 is fixedly arranged on the inner side of the centrifugal rotation component 310 of the lower end of the second mixing cavity 302, and cooperates with the first diamond-shaped electrode 309 to form a strong electric field with the anode in the center and the cathode on the cavity wall in the second mixing cavity 302;

[0087] The bottom outflow valve 312 is fixedly arranged on the pipeline passing through the separator body 301 and connecting the lower end of the second mixing cavity 302, and is used to control the outflow of the slurry in the second mixing cavity 302;

[0088] A second digital pH meter 313 is fixed on the upper side wall of the second mixing chamber 302 for measuring the pH value of the slurry on the upper end wall of the second mixing chamber 302;

[0089] In the multi-state separation operation, the slurry inflow valve 306 is opened, and the slurry is injected into the second mixing chamber 302 through the slurry inlet 305; the centrifugal rotating part 310 is opened to drive the slurry to rotate, and the particles with large mass move to the main cavity wall under the action of centrifugal force, and the mixed solution containing soluble salt and soluble organic matter is concentrated in the center to form solid-liquid separation; at the same time, due to the different sinking rates of particles with different masses under the action of different centrifugal forces, the uppermost layer forms a non-soluble organic matter suspension layer, the middle layer is a mixed solution of soluble salt and soluble organic matter, and the lowermost layer is a medium-coarse particle enrichment zone; after a certain amount of slurry is injected, the second ultrasonic vibrator 303 is opened, and the first rhombic electrode 309 located in the center and the second rhombic electrode 311 on the cavity wall are also opened, wherein the center electrode is an anode, and the two side cavity walls are cathodes. At this time, the negatively charged acid radical ions in the soluble salt and soluble organic acid solution move to the center anode, and the positively charged metal ions move to the cavity wall cathode. At the same time, near the center anode, due to the electrolysis of water, the center liquid is acidic, realizing ion separation and acid-base separation of the mixed solution; secondly, under the action of a strong electric field, the potential surface density at the tip of the rhombic electrode is high, and the electric field strength increases sharply, which can break part of the coarse particles through discharge effect, so that the pollutants or beneficial substances are better separated, and at the same time, the non-soluble organic matter is chain-broken and oxidized under the action of electro-oxidation, further degrading; when the anode acid pH value is less than 6 and the cathode alkaline pH value is greater than 9, the corresponding end of the mixed solution extraction part 307 sinks, and the enriched soluble salt and soluble organic acid are extracted at the anode, until the anode acid pH value is greater than 6 and the cathode alkaline pH value is less than 9, then the operation is stopped, and then the above operation is repeated until the coal-based solid waste at the lower end of the second mixing chamber 302 after separation reaches a certain amount, the bottom outlet valve 312 is opened to discharge and filter, and the pollutant concentration is checked. If the pollutant concentration in the solution and the residue meets the comprehensive emission standard, the obtained environmentally friendly solid can be used for engineering and resource utilization, and the filtered solution is discharged into a sedimentation tank; if the solution and the residue do not meet the comprehensive emission standard, they are re-entered into the multi-state separation module for further separation; if the treatment is not up to standard after three times, the residue is used as a filling core layer in a permanent storage site for toxic solid waste, and the solution is discharged into a sedimentation tank.

[0090] The present application can simultaneously target different types of pollutants through the polymorphic separation module, thereby improving the overall separation efficiency. In addition, by combining physical and chemical methods, the use of chemical reagents is reduced, the risk of secondary pollution is lowered, harmful pollutants are effectively separated and beneficial substances are enriched, creating conditions for resource recycling and reuse, reducing harmful substance emissions, protecting water and soil environments, and promoting sustainable development. At the same time, the use of substandard slurry in the polymorphic separation process for the separation of pollutants and beneficial substances effectively improves resource utilization efficiency and product purity, while reducing processing costs and environmental pollution. In addition, the recycling separation also enhances the flexibility and adaptability of the system, allowing the separation process to be optimized according to different processing needs. Furthermore, this method promotes waste recycling, supports a closed-loop production model, and helps to achieve the cyclic use of raw materials and resources in the production process, embodying the concept of circular economy.

[0091] Preferably, the frequency of the first ultrasonic vibrator 203 and the second ultrasonic vibrator 303 is 20-30 kHz.

[0092] Preferably, the flow rate of the slurry in the second mixing chamber 302 in the electronic flowmeter 304 is ≤20 m / s, avoiding the safety reduction problem caused by excessive flow rate.

[0093] As shown in Figure 8 Another embodiment of the present application provides a coal-based solid waste environmental standard reaching and recycling polymorphic separation and extraction treatment method, comprising the following steps:

[0094] S1: After detecting the operation of the equipment, the coal-based solid waste is crushed to a suitable particle size to meet the economic and maximum allowable particle size requirements of the subsequent equipment;

[0095] S2: Sample the particles and detect the pollutants to determine the over-standard pollutants and their concentrations;

[0096] S3: Inject the particles into the mixing leaching module, mix them with an appropriate amount of water, release and separate the pollutants and beneficial substances from the coal-based solid waste through ultrasonic and circular jet, and measure the mixed liquid and dry matter in the slurry through the pollutant detection module to obtain the pollutant concentrations in the mixed liquid and the dry matter. If the pollutant concentrations in the mixed liquid and the dry matter meet the comprehensive emission standard, then directly perform a filtering operation to obtain environmentally standard solid which can be used for engineering and resource utilization, and the filtered solution is re-injected into the mixing leaching module;

[0097] S4: If the concentration of pollutants in the mixed solution and the dry matter in step S3 does not meet the comprehensive emission standard, the mixed slurry is injected into a multi-state separation module for solid-liquid, acid-base and anion-cation multi-state separation operation, and a xanthated acid mixed solution is extracted from the upper part to the next step of extraction separation, and a coal-based solid waste mixed solution is extracted from the lower part and filtered, and the solution and the residue are detected by the pollutant detection module; if the concentration of pollutants in the solution and the residue meets the comprehensive emission standard, the obtained environmentally friendly solid can be used for engineering and resource utilization, and the filtered solution is discharged into a sedimentation tank; if the solution and the residue do not meet the comprehensive emission standard, they are re-entered into the multi-state separation module for further separation; if the treatment is not up to standard after three times, the residue is used as a filling core layer in a permanent storage site for toxic solid waste, and the solution is discharged into a sedimentation tank.

[0098] Preferably, the filtrate meeting the emission standard in step S4 is discharged into a different sedimentation tank from the filtrate not meeting the standard.

[0099] It should be noted that if the present application embodiments involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0100] In addition, if the present application embodiments involve descriptions of "first", "second", etc., the descriptions of "first", "second", etc. are only for descriptive purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of a person skilled in the art, and when the combination of technical solutions appears to be contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the present application.

[0101] In this patent, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the elements defined by the statement "include" do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0102] It should be pointed out finally that the above examples are only used to illustrate the technical solutions of the present application, but not to limit them; those skilled in the art can understand that the above descriptions are only the preferred embodiments of the present application, and are not used to limit the present application, and any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A multi-mode separation and extraction treatment system for environmentally compliant and reusable coal-based solid waste, characterized in that, include: Solid pulverizing module: used to pulverize large coal-based solid waste particles into particles of a suitable size to meet economic and equipment maximum allowable particle size requirements; Pollutant detection module: Used to detect pollutants in samples of coal-based solid waste and its mixtures, and to determine the pollutants exceeding the standards and their concentrations; Mixed leaching module: used to fully mix coal-based solid waste particles with an appropriate amount of water, and then release and separate pollutants and beneficial substances from the coal-based solid waste through ultrasound and circulating jet. The mixed liquid and dry matter in the slurry are measured to obtain the pollutant concentration in the mixed liquid and the dry matter. If the pollutant concentration in the mixed liquid and the dry matter meets the comprehensive emission standards, the filtration operation is directly performed. The obtained environmentally compliant solids can be used for engineering and resource utilization. The filtered solution is reinjected into the mixed leaching module. The mixed leaching module includes an ultrasonic jet mixer (2) for releasing and separating pollutants from the coal-based solid waste. The ultrasonic jet mixer (2) includes: a mixer body (201). The mixer body (201) comprises a first mixing chamber (202), a first ultrasonic vibrator (203), a particle sprayer (204), a first solution inlet (205), a first solution inlet switch valve (206), a second solution inlet (207), a second solution inlet switch valve (208), a third solution inlet (209), a circulating jet inlet (210), a circulating solution switch valve (211), a slurry main regulating valve (212), a slurry flow pump (213), and a slurry outlet valve (214); the mixer body (201) is fixedly installed on the construction ground; the first mixing chamber (202) is fixedly installed in the middle of the mixer body (201); the first ultrasonic vibrator (203) is fixedly installed in the first mixing chamber (204). 02) The upper end is in contact with the slurry on one side and the lower end is in contact with the slurry; the particle sprayer (204) is fixedly installed in the middle of the upper end of the first mixing chamber (202); the first solution inlet (205) is fixedly installed in the first mixing chamber (202); the first solution inlet switch valve (206) is fixedly installed on the pipeline connected to the first solution inlet (205); the second solution inlet (207) is fixedly installed in the first mixing chamber (202) and located at the same horizontal position on the same side as the first solution inlet (205); the second solution inlet switch valve (208) is fixedly installed on the pipeline connected to the first solution inlet (205) and located on one side of the mixer body (201); a plurality of The third solution inlet (209) is fixedly installed on one side of the first mixing chamber (202); the circulating jet inlet (210) is fixedly installed at the lower end of the second solution inlet switch valve (208) and is fixedly connected to the second solution inlet switch valve (208) and the third solution inlet (209) respectively through a tee and corresponding pipelines; the circulating solution switch valve (211) is fixedly installed on the pipeline at the lower end of the circulating jet inlet (210); the mixing slurry main regulating valve (212) is fixedly installed on the pipeline connecting the bottom end of the first mixing chamber (202); the mixing slurry flow pump (213) is fixedly installed on the pipeline between the circulating solution switch valve (211) and the mixing slurry main regulating valve (212);The slurry outlet valve (214) is fixedly installed on one side of the mixer body (201) and located on the pipeline connected to the circulating solution switch valve (211) and the slurry flow pump (213); Multi-phase separation module: This module is used to perform multi-phase separation operations (solid-liquid, acid-base, and anion-cation) on the slurry that does not meet the comprehensive emission standards after being treated by the mixed leaching module, including centrifugation, electrophoresis, tip discharge, electro-oxidation, and ultrasound. The fulvic acid mixture is drawn from the top for the next extraction and separation step, while the coal-based solid waste mixture is drawn from the bottom, filtered, and the solution and residue are tested using the pollutant detection module. If the pollutant concentrations in the solution and residue meet the comprehensive emission standards, the resulting environmentally compliant solids can be used for engineering and resource utilization, and the filtered solution is discharged into a sedimentation tank. If the solution and residue do not meet the comprehensive emission standards, they re-enter the multi-phase separation module for further separation. If the process is repeated three times... If the residue still fails to meet the standards, it will be used as a core layer in a permanent toxic solid waste storage site, and the solution will be discharged into a sedimentation tank. The multi-state separation module includes a multi-state separator (3) for solid-liquid, acid-base, and anion-cation separation by centrifugation, electrophoresis, tip discharge, electro-oxidation, and ultrasound. The multi-state separator (3) includes: a separator body (301), a second mixing chamber (302), a second ultrasonic vibrator (303), an electronic flow meter (304), a slurry inlet (305), a slurry inflow valve (306), a mixed liquid extraction component (307), a first digital pH meter (308), a first rhomboid electrode (309), a centrifugal rotating component (310), a second rhomboid electrode (311), and a bottom. The separator body (301) is fixedly installed on the construction ground; the second mixing chamber (302) is fixedly installed in the middle of the separator body (301); the second ultrasonic vibrator (303) is fixedly installed on one side of the upper end of the second mixing chamber (302) and its lower end is in contact with the slurry; the electronic flow meter (304) is fixedly installed on one side of the upper end of the second mixing chamber (302) and its lower end is in contact with the slurry; the slurry inlet (305) is fixedly installed in the second mixing chamber (302) and is connected to the mixing leaching module through a pipeline; the slurry inflow valve (306) is fixedly installed on the pipeline connected to the slurry inlet (305); the mixing... One end of the liquid extraction component (307) is fixedly connected to the storage device, and the other end is fixedly disposed in the middle of the upper end of the second mixing chamber (302) with an opening at the bottom; the first digital pH meter (308) is fixedly disposed on the upper side of the opening at the bottom of the liquid extraction component (307); the first rhomboid electrode (309) is fixedly disposed in the middle of the second mixing chamber (302) and surrounds the liquid extraction component (307); the centrifugal rotating component (310) is fixedly disposed on the outer side of the conical shape at the lower end of the second mixing chamber (302), and a motor for providing stable power is also provided on one side; the second rhomboid electrode (311) is fixedly disposed on the inner side of the centrifugal rotating component (310) at the lower end of the second mixing chamber (302);The bottom outlet valve (312) is fixedly installed on the pipeline passing through the separator body (301) and connecting to the lower end of the second mixing chamber (302); the second digital pH meter (313) is fixedly installed on the upper side wall of the second mixing chamber (302).

2. The system according to claim 1, characterized in that, The maximum permissible particle size is ≤10cm.

3. The system according to claim 1, characterized in that, The ultrasonic treatment time in the hybrid leaching module should last for 30-60 minutes.

4. The system according to any one of claims 1-3, characterized in that, The ultrasonic jet mixer (2) is cylindrical in shape.

5. The system according to claim 4, characterized in that, The inner diameter at the maximum diameter of the upper end of the first mixing chamber (202) is the inner diameter value of the first mixing chamber (202), which ranges from 1m to 2m.

6. The system according to any one of claims 1-3, characterized in that, The multi-state separator (3) is cylindrical in shape.

7. The system according to claim 6, characterized in that, The flow rate of the slurry in the second mixing chamber (302) in the electronic flow meter (304) is ≤20m / s.

8. A method for multi-dimensional separation and extraction treatment of coal-based solid waste for environmental compliance and reuse, implemented using the multi-dimensional separation and extraction treatment system for environmental compliance and reuse of coal-based solid waste as described in any one of claims 1 to 7, characterized in that... Includes the following steps: S1: After checking the equipment operation, the coal-based solid waste is crushed to a suitable particle size to meet the economic requirements and the maximum allowable particle size requirements of subsequent equipment. S2: Sample the particles and perform pollutant detection to determine the pollutants exceeding the standard and their concentrations; S3: The particles are injected into the mixed leaching module and thoroughly mixed with an appropriate amount of water. Pollutants and beneficial substances are released and separated from the coal-based solid waste through ultrasound and circulating jet. The mixed liquid and dry matter in the slurry are measured by the pollutant detection module to obtain the pollutant concentration in the mixed liquid and the dry matter. If the pollutant concentration in the mixed liquid and the dry matter meets the comprehensive emission standards, the filtration operation is directly performed. The environmentally compliant solid obtained can be used for engineering and resource utilization. The filtered solution is reinjected into the mixed leaching module. S4: If the pollutant concentrations in the mixture and dry matter described in step S3 do not meet the comprehensive emission standards, the slurry is injected into the multi-phase separation module for solid-liquid, acid-base, and anion-cation multi-phase separation operations. The fulvic acid mixture is then extracted from the top for further extraction and separation, while the coal-based solid waste mixture is extracted from the bottom, filtered, and the solution and residue are tested using the pollutant detection module. If the pollutant concentrations in the solution and residue meet the comprehensive emission standards, the resulting environmentally compliant solids can be used for engineering and resource utilization, and the filtered solution is discharged into a sedimentation tank. If the solution and residue do not meet the comprehensive emission standards, they are re-entered into the multi-phase separation module for further separation. If the treatment still fails to meet the standards after three treatments, the residue will be used as a core layer in a permanent toxic solid waste storage site, and the solution will be discharged into a sedimentation tank.

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