Waste water treatment system and method for resource utilization of waste incineration slag

Abstract

The application discloses a sewage treatment system and method for resource utilization of waste incineration slag, and material enters a water reducing hopper after passing through a crusher, a sorting machine, a jigging machine and a grading drum screen; after high-concentration sewage enters a desilting cylinder, low-concentration sewage enters a high-frequency dewatering screen and then enters a cyclone after being screened by a high-frequency dewatering machine; the generated low-concentration sewage enters an upstream crusher for water supplement, and the high-concentration sewage enters a thickener; while the slag material is separated and graded, the water consumption in the resource utilization of the slag is reduced through two paths; on one hand, high-concentration polluted water generated by part of the equipment is input into the thickener for separation and then water circulation; on the other hand, low-concentration polluted water overflowed or separated in the process of treatment of each equipment is directly reused in other water-consuming process sections through path setting, the scheme improves the water resource use efficiency, reduces the water consumption, and achieves the effect of zero discharge of sewage.

Description

Technical Field

[0001] This invention relates to the field of waste treatment technology, and in particular to a wastewater treatment system and method for the resource utilization of waste incinerator slag. Background Technology

[0002] In the process of resource utilization and extraction of municipal solid waste incineration slag, a wet processing method is adopted. This process requires a large amount of water to mix the slag. Through sedimentation, washing and dissolution, the extraction of recyclable resources such as aluminum, copper and iron from the slag can be improved.

[0003] Traditional slag resource recovery involves crushing the slag, then using magnetic separators, jigs, and drum screens, followed by extraction of iron, aluminum, and copper through equipment such as spiral sand washers and eddy current aluminum separators. Traditional treatment processes use municipal tap water as a source, with industrial water supplied to each equipment point. Large-scale sedimentation tanks are constructed at the end for sedimentation, the purified water is reused, and the sediment is filtered before the wastewater is treated at a wastewater treatment plant.

[0004] This water system is characterized by its simple process, but it also results in a large water consumption, a large sedimentation tank capacity, and high construction costs. Summary of the Invention

[0005] In view of this, this application provides a wastewater treatment system and method for the resource utilization of waste incineration slag, which is used to solve the problem of large water consumption in the slag resource utilization process.

[0006] To achieve the above technical objectives, this application adopts the following technical solution:

[0007] In a first aspect, this application provides a wastewater treatment method for the resource utilization of waste incinerator slag in a wastewater treatment system, comprising the following steps:

[0008] S1. The slag mixture is sequentially subjected to water-added crushing and refining, water-added magnetic separation for iron removal, and water-added jigging to obtain material mixture C, solid β, and recovered copper; solid β is washed with water on a shaking table to obtain wastewater III;

[0009] S2. The material mixture C is graded and screened to obtain solid γ, solid δ, and material mixture D; solid γ is then separated by aluminum separation to obtain wastewater I;

[0010] S3. Add water to the solid material δ and perform spiral sand washing to obtain recycled water g and material mixture E; the material mixture E is then separated by aluminum separation to obtain wastewater II;

[0011] The material mixture D is subjected to water reduction and classification to obtain material mixture F and material mixture G;

[0012] S4. Collect the material mixture F and recycled water g for sedimentation treatment to obtain recycled water h and wastewater VI; Sedimentate the recycled water h to obtain material mixture H and recycled water a; Recycled water a is reused in the water addition crushing and refining process.

[0013] S5. Collect the material mixture G and the material mixture H and perform high-frequency dewatering to obtain recycled water i, wastewater IV and recycled water e. Recycled water i is reused in the grit removal process of step S4 and recycled water e is used in the jigging process of step S1.

[0014] S6. Collect wastewater I, wastewater II, wastewater III, and wastewater IV as wastewater V and combine them with wastewater VI for purification treatment to obtain comprehensive recycled water, which is then reused in the water-adding crushing and refining process, the water-adding magnetic separation and iron removal process, the water-adding jigging process, the shaking table washing process, and the spiral sand washing process.

[0015] Preferably, step S2 further includes aluminum sorting of solid γ to obtain wastewater I and recovered aluminum, and wastewater I is used for sewage conditioning and buffering.

[0016] Preferably, step S1 further includes adding water to the solid β and washing it on a shaker to obtain wastewater III for wastewater conditioning and buffering.

[0017] Preferably, step S3 further includes sorting the material mixture E for aluminum to obtain wastewater II, and then performing wastewater conditioning and buffering on wastewater II.

[0018] Preferably, step S5 further includes performing wastewater conditioning and buffering on wastewater IV.

[0019] Preferably, step S6 specifically involves collecting wastewater I, wastewater II, wastewater III, and wastewater IV as wastewater V and performing a thickening separation together with wastewater VI generated from grit settling to obtain wastewater VII. Wastewater VII is then subjected to pressure filtration, water conditioning, and settling to obtain comprehensive recycled water. The comprehensive recycled water is then divided into recycled water b, recycled water c, recycled water d, recycled water k, and recycled water f according to branch pipes, and is recycled to the water addition crushing and refining process, the water addition magnetic separation iron removal process, the water addition jigging process, the shaking table washing process, and the spiral sand washing process.

[0020] Preferably, step S4 further includes settling and separating the recycled water h and thickening the wastewater VI; after settling and separating the recycled water h, recycled water a and material mixture H are obtained, recycled water a is reused in the water addition, crushing and refining process, and material mixture H is subjected to high-frequency dehydration.

[0021] Secondly, this application provides a wastewater treatment system for the resource utilization of waste incineration slag, comprising:

[0022] The crusher is equipped with a recycled water inlet (A), a recycled water inlet (B), a slag mixture inlet, and a material mixture outlet (A).

[0023] The magnetic separator is equipped with a material mixture inlet A, a recycled water inlet C, and a material mixture outlet B.

[0024] The jig is equipped with a material mixture B inlet, a recycled water d inlet, a recycled water e inlet, a recovered copper outlet, a solid β outlet, and a material mixture C outlet;

[0025] The grading drum screen is equipped with a material mixture inlet C, a material mixture outlet D, a solid material outlet γ, and a solid material outlet δ.

[0026] The spiral sand washing machine is equipped with a solid material inlet (δ), a recycled water inlet (f), a material mixture outlet (E), and a recycled water outlet (g).

[0027] The first eddy current aluminum separator is equipped with a solid material γ input port, a recycled aluminum output port, and a wastewater I output port;

[0028] The second eddy current aluminum separator is equipped with a material mixture E inlet and a wastewater II outlet.

[0029] The shaking table is equipped with a solid material β input port, a recycled water k input port, and a wastewater Ⅲ output port;

[0030] The water-reducing hopper is equipped with a material mixture inlet D, a material mixture outlet F, and a material mixture outlet G.

[0031] The high-frequency dewatering screen is equipped with a material mixture inlet G, a material mixture inlet H, a recycled water outlet e, a wastewater outlet IV, and a recycled water outlet i.

[0032] The regulating water tank is equipped with wastewater inlet IV, wastewater inlet III, wastewater inlet I, wastewater inlet II, and wastewater outlet V;

[0033] The sedimentation tank is equipped with a material mixture inlet F, a recycled water inlet g, a recycled water outlet h, a wastewater outlet VI, and a recycled water inlet i.

[0034] The hydrocyclone is equipped with a recycled water outlet (a), a recycled water inlet (h), and a material mixture outlet (H).

[0035] The thickener is equipped with a wastewater V inlet, a wastewater VII outlet, and a wastewater VI inlet;

[0036] The clean water tank is equipped with a wastewater inlet VII, a recycled water outlet b, a recycled water outlet c, a recycled water outlet d, a recycled water outlet k, and a recycled water outlet f.

[0037] The inlets of recycled water a, b, c, d, e, f, g, h, i, k are connected to the outlets of recycled water a, b, c, d, e, f, g, h, i, k through corresponding pipes;

[0038] The inlets and outlets of material mixtures A, B, C, D, E, F, G, and H are connected one-to-one via pipelines.

[0039] The inlets of wastewater I, II, III, IV, V, VI, and VII are connected to the outlets of wastewater I, II, III, IV, V, VI, and VII through corresponding pipes;

[0040] The input ports and output ports of solids β, γ, and δ are connected one-to-one through pipes.

[0041] Preferably, a filter press and a clear water equalization tank are also provided between the thickener and the clear water tank.

[0042] Preferably, the crusher includes one or both of sand crushing and iron crushing.

[0043] The beneficial effects of this application are as follows:

[0044] This solution reduces water consumption in slag resource utilization through two pathways. On the one hand, high-concentration polluted water generated by some equipment is fed into a thickener for separation before being recycled. On the other hand, low-concentration polluted water overflowing or separated during the processing of various equipment is directly reused in other water-requiring processes through a designated pathway. Furthermore, the process system of this solution is a closed-loop system, which reduces the total water consumption and the volume of the end-of-pipe regulating tank through water recycling, thereby improving water resource utilization efficiency and reducing water consumption. Moreover, this process achieves zero wastewater discharge. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the process flow of the wastewater treatment system for the resource utilization of waste incineration slag in this application. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0047] Example 1

[0048] A wastewater treatment system for the resource utilization of waste incineration slag includes:

[0049] The sand crusher is used for fine crushing and coarse grinding of slag. It is equipped with a recycled water inlet (A), a recycled water inlet (B), a slag mixture inlet, and a material mixture outlet (A).

[0050] A magnetic separator is used to separate and recover magnetic iron from furnace slag. It is equipped with a material mixture inlet A, a recycled water inlet C, and a material mixture outlet B.

[0051] The jig is equipped with a material mixture B inlet, a recycled water d inlet, a recycled water e inlet, a recovered copper outlet, a solid β outlet, and a material mixture C outlet;

[0052] The grading drum screen is equipped with a material mixture inlet C, a material mixture outlet D, a solid material outlet γ, and a solid material outlet δ. When the material enters the drum device, the tilting and rotation of the drum device causes the material on the screen surface to tumble and roll, so that qualified material (undersize product) is discharged through the discharge port at the bottom of the rear end of the drum, and unqualified material (oversize product) is discharged through the discharge port at the tail end of the drum.

[0053] The spiral sand washing machine is equipped with a solid material inlet (δ), a recycled water inlet (f), a material mixture outlet (E), and a recycled water outlet (g). The material is stirred and gradually screened under the action of the spiral device, and discharged from the top outlet, thus achieving the effect of cleaning and screening the material.

[0054] The first eddy current aluminum separator is equipped with a solid material γ input port, a recycled aluminum output port, and a wastewater I output port;

[0055] The second eddy current aluminum separator is equipped with a material mixture E inlet and a wastewater II outlet.

[0056] The shaking table is equipped with a solid material β input port, a recycled water k input port, and a wastewater Ⅲ output port;

[0057] The water-reducing hopper is equipped with a material mixture D inlet, a material mixture F outlet, and a material mixture G outlet. The water-reducing hopper separates material mixtures of different concentrations. The material mixture G with a high concentration is conveyed to a high-frequency dewatering screen, while the material mixture F with a low concentration is conveyed to a grit chamber.

[0058] The high-frequency dewatering screen is equipped with a material mixture inlet G, a material mixture inlet H, a recycled water outlet e, a wastewater outlet IV, and a recycled water outlet i.

[0059] The regulating water tank is equipped with wastewater inlet IV, wastewater inlet III, wastewater inlet I, wastewater inlet II, and wastewater outlet V;

[0060] The sedimentation tank is equipped with a material mixture inlet F, a recycled water inlet g, a recycled water outlet h, a wastewater outlet VI, and a recycled water inlet i.

[0061] The hydrocyclone is equipped with a recycled water outlet (a), a recycled water inlet (h), and a material mixture outlet (H).

[0062] The thickener is equipped with a wastewater V inlet, a wastewater VII outlet, and a wastewater VI inlet;

[0063] The clean water tank is equipped with a wastewater inlet VII, a recycled water outlet b, a recycled water outlet c, a recycled water outlet d, a recycled water outlet k, and a recycled water outlet f.

[0064] A filter press and a clear water equalization tank are also provided between the thickener and the clear water tank; the thickener, filter press, clear water equalization tank and clear water tank are connected in series.

[0065] The crusher, magnetic separator, jig, grading drum screen, spiral sand washer, first eddy current aluminum separator, second eddy current aluminum separator, shaking table, water reduction hopper, high-frequency dewatering screen, regulating tank, sedimentation tank, hydrocyclone, thickener, and clear water tank involved in this embodiment are all commercially available wastewater treatment equipment. The configuration of each inlet and outlet can be achieved through pipeline branch connections.

[0066] The input and output ports of recycled water a, b, c, d, e, f, g, h, i, and k are connected by a pipe.

[0067] The inlet and outlet of material mixture A are connected by a pipeline; the inlet and outlet of material mixture B are connected by a pipeline; the inlet and outlet of material mixture C are connected by a pipeline; the inlet and outlet of material mixture D are connected by a pipeline; the inlet and outlet of material mixture E are connected by a pipeline; the inlet and outlet of material mixture F are connected by a pipeline; the inlet and outlet of material mixture G are connected by a pipeline; and the inlet and outlet of material mixture H are connected by a pipeline.

[0068] Wastewater outlet I is connected to wastewater inlet I via a pipeline; wastewater outlet II is connected to wastewater inlet II via a pipeline; wastewater outlet III is connected to wastewater inlet III via a pipeline; wastewater outlet IV is connected to wastewater inlet IV via a pipeline; wastewater outlet V is connected to wastewater inlet V via a pipeline; wastewater outlet VI is connected to wastewater inlet VI via a pipeline; and wastewater outlet VII is connected to wastewater inlet VII via a pipeline.

[0069] The output port of solid β and the input port of solid β are connected by a pipe, the output port of solid γ and the input port of solid γ are connected by a pipe, and the output port of solid δ and the input port of solid δ are connected by a pipe.

[0070] The above-mentioned connection methods can be fixed or bolted to connect the various devices, and the pipes used for connection are all concrete pipes.

[0071] Through the aforementioned wastewater treatment system, the waste incineration slag is recycled by allowing low-impurity wastewater (reclaimed water) from overflows and separation water from various equipment to be reused in other equipment or upstream processes. This reduces the total water consumption and the volume of the final sedimentation tank, and achieves zero wastewater discharge. The water recycling pathways include the following:

[0072] 1. On the one hand, the high-concentration polluted water generated by various equipment is treated, and then concentrated and separated before being recycled: In this scheme, the high-concentration polluted water after being treated by the shaking table, the first eddy current aluminum separator, the second eddy current aluminum separator, the high-frequency dewatering screen, and the sand settling cylinder is input into the thickener for solid-liquid separation, and then low-concentration polluted water is obtained through the clear water tank as recycled water. It is recycled to the crusher, magnetic separator, jig, shaking table, and spiral sand washing machine through five branches to provide water source. The material is also recycled after being treated by the spiral sand washing machine and input into the sand settling cylinder, thus realizing the water recycling path.

[0073] 2. On the other hand, the low-concentration polluted water overflowing or separated during the processing of each device is directly recycled to other water-requiring processes through a set path: In this scheme, the material after being treated by the water-reducing hopper enters the grit chamber and the high-frequency dewatering screen for further processing, producing recycled water through different paths. Among them, part of the recycled water generated by the high-frequency dewatering screen is recycled to the jig, and the other part is recycled to the grit chamber; while the grit chamber uses the recycled water generated by the spiral sand washer and the high-frequency dewatering screen to treat the material treated by the water-reducing hopper for grit removal, and the resulting water is recycled to the hydrocyclone and finally recycled to the crusher, thus realizing another water circulation path.

[0074] 3. The process in this solution is a closed-loop process, which can achieve zero emissions.

[0075] Example 2

[0076] A wastewater treatment method for the resource utilization of waste incinerator slag includes the following steps in sequence:

[0077] The slag mixture (400 cubic meters / h) is sequentially subjected to water-added crushing and refining, water-added magnetic separation for iron removal, and water-added jigging to obtain material mixture C, solid β, and recovered copper; the metallic iron separated by the magnetic separator is collected; in this step, the equipment used for crushing and refining is a crusher, the equipment used for magnetic separation for iron removal is a magnetic separator, and the equipment used for jigging is a jig.

[0078] Solid material β is added to water and washed on a shaking table to obtain wastewater Ⅲ, which is then transported to a regulating tank for wastewater buffering; the material mixture C enters the next stage of processing; the equipment used for shaking table washing is a shaking table.

[0079] The water used for crushing and refining comes from recycled water b (50 cubic meters / h) transported from the clean water tank in the subsequent process and recycled water a (20 cubic meters / h) transported from the hydrocyclone; the water used for magnetic separation to remove iron comes from recycled water c (10 cubic meters / h) transported from the clean water tank in the subsequent process; the water used for jigging comes from recycled water d (210 cubic meters / h) transported from the clean water tank in the subsequent process and recycled water e (20 cubic meters / h) transported from the high-frequency dewatering screen; and the water used for shaking table washing comes from recycled water k (10 cubic meters / h) transported from the clean water tank in the subsequent process.

[0080] The material mixture C (255 cubic meters / h) was screened using a grading drum screen to obtain solid γ, solid δ, and material mixture D (225 cubic meters / h);

[0081] Solid matter γ is separated using the first eddy current aluminum separator to obtain wastewater I (10 cubic meters / h) and recovered aluminum. Wastewater I is transported to the equalization tank for sewage buffering, and metallic aluminum separated by the second eddy current aluminum separator is collected.

[0082] Solid δ and material mixture D enter the next stage of processing;

[0083] Solid material δ (20 cubic meters / h) is added to water and fed into a spiral sand washing machine for spiral sand washing, resulting in recycled water g (40 cubic meters / h) and material mixture E (10 cubic meters / h). The recycled water g is then transported to a settling tank for sand settling. The material mixture E is then transported to a second eddy current aluminum separator for separation, resulting in wastewater II (10 cubic meters / h). Wastewater II is then transported to a regulating water tank for wastewater buffering. The equipment used for spiral sand washing is a spiral sand washing machine, and the source of its added water is recycled water f (30 cubic meters / h) transported from the clean water tank in the subsequent process.

[0084] Material mixture D is conveyed to a water-reducing hopper for classification to obtain material mixture F (205 cubic meters / h) and material mixture G; material mixture F is conveyed to a sand settling cylinder for sand settling; material mixture G is conveyed to a high-frequency dewatering screen for dewatering;

[0085] Material mixture F and recycled water g are fed to the grit chamber for grit removal, resulting in recycled water h and wastewater VI. Recycled water h (165 cubic meters / h) is fed to a hydrocyclone for sedimentation separation, and wastewater VI is fed to a thickener for solid-liquid separation. After sedimentation separation in the hydrocyclone, recycled water h is fed to recycled water a (20 cubic meters / h) and material mixture H. Recycled water a is reused in the water addition, crushing and refining process, and material mixture H is fed to a high-frequency dewatering screen for dewatering.

[0086] After the material mixture G and material mixture H are dewatered by a high-frequency dewatering screen, recycled water i, wastewater IV, and recycled water e (20 cubic meters / h) are obtained. Recycled water i (50 cubic meters / h) is recycled to the grit chamber for dust and sand removal, recycled water e is transported to the jig for jigging and sorting, and wastewater IV is transported to the regulating water tank for wastewater buffering.

[0087] Wastewater I, Wastewater II (10 m³ / h), Wastewater III (30 m³ / h), and Wastewater IV (15 m³ / h) from the equalization tank are collected as Wastewater V and transported together with Wastewater VI generated from sand settling in the grit chamber to a thickener for solid-liquid separation, yielding Wastewater VII. Wastewater VII undergoes sequential treatment including filter press, equalization in a clear water equalization tank, and settling in a clear water tank to obtain recycled water. This recycled water is then divided into Recycled Water b, Recycled Water c, Recycled Water d, Recycled Water k, and Recycled Water f via branch pipelines, and is reused in the water-addition crushing and refining process, the water-addition magnetic separation iron removal process, the water-addition jigging process, the shaking table washing process, and the spiral sand washing process. The equalization tank has a capacity of 100 m³. 3 .

[0088] In this scheme, the recycled water generated through the water-reducing hopper-sand settling cylinder-cyclone separator is used in the crusher, utilizing 20 cubic meters / h of recycled water; the recycled water generated through the water-reducing hopper-high frequency dewatering screen is used in the jig, utilizing 255 cubic meters / h of recycled water; the high-concentration polluted water generated in this scheme is adjusted with clean water by the solid-liquid separator in the thickener and then reused, utilizing 310 cubic meters / h of recycled water. It can be seen that this scheme is conducive to improving water resource utilization efficiency.

[0089] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A wastewater treatment method for the resource utilization of waste incinerator slag in a wastewater treatment system, characterized in that, Includes the following steps: S1. The slag mixture is sequentially subjected to water-added crushing and refining, water-added magnetic separation for iron removal, and water-added jigging to obtain material mixture C, solid β, and recovered copper; solid β is washed with water on a shaking table to obtain wastewater III; S2. The material mixture C is graded and screened to obtain solid γ, solid δ, and material mixture D; solid γ is then separated by aluminum separation to obtain wastewater I; S3. Add water to the solid δ and perform spiral sand washing to obtain recycled water g and material mixture E; the material mixture E is then subjected to aluminum separation to obtain wastewater II; The material mixture D is subjected to water reduction and classification to obtain material mixture F and material mixture G; S4. The material mixture F and the recycled water g are subjected to sedimentation treatment to obtain recycled water h and wastewater VI; the recycled water h is subjected to sedimentation separation to obtain material mixture H and recycled water a; the recycled water a is reused in the water addition crushing and refining process. S5. The material mixture G and the material mixture H are subjected to high-frequency dehydration to obtain recycled water i, wastewater IV and recycled water e. The recycled water i is reused in the sand settling process of step S4 and the recycled water e is used in the jigging process of step S1. S6. Collect wastewater I, wastewater II, wastewater III, and wastewater IV as wastewater V and combine them with wastewater VI for purification treatment to obtain comprehensive recycled water, which is then reused in the water-adding crushing and refining process, the water-adding magnetic separation and iron removal process, the water-adding jigging process, the shaking table washing process, and the spiral sand washing process.

2. The wastewater treatment method for the resource utilization of waste incineration slag in a wastewater treatment system according to claim 1, characterized in that, Step S2 further includes sorting the solid γ for aluminum to obtain wastewater I and recovered aluminum, wherein the wastewater I is used for wastewater conditioning and buffering.

3. The wastewater treatment method for resource utilization of waste incinerator slag in a wastewater treatment system according to claim 1, characterized in that, Step S1 also includes adding water to the solid β and washing it on a shaker to obtain wastewater III for sewage conditioning and buffering.

4. The wastewater treatment method for resource utilization of waste incinerator slag in a wastewater treatment system according to claim 1, characterized in that, Step S3 further includes sorting the material mixture E for aluminum to obtain wastewater II, and then performing wastewater conditioning and buffering on the wastewater II.

5. The wastewater treatment method for resource utilization of waste incinerator slag in a wastewater treatment system according to claim 1, characterized in that, Step S5 also includes performing wastewater conditioning and buffering on the wastewater IV.

6. The wastewater treatment method for resource utilization of waste incinerator slag in a wastewater treatment system according to claim 1, characterized in that, Step S6 involves collecting wastewater I, wastewater II, wastewater III, and wastewater IV as wastewater V and separating them together with wastewater VI generated from grit removal to obtain wastewater VII. Wastewater VII is then subjected to pressure filtration, water conditioning, and settling to obtain comprehensive recycled water. The comprehensive recycled water is divided into recycled water b, recycled water c, recycled water d, recycled water k, and recycled water f according to branch pipes, and is recycled to the water addition crushing and refining process, the water addition magnetic separation iron removal process, the water addition jigging process, the shaking table washing process, and the spiral sand washing process.

7. The wastewater treatment method for the resource utilization of waste incinerator slag in a wastewater treatment system according to claim 1, characterized in that, Step S4 further includes settling and separating the recycled water h and thickening the wastewater VI; after settling and separating the recycled water h, recycled water a and material mixture H are obtained, recycled water a is reused in the water addition, crushing and refining process, and material mixture H is subjected to high-frequency dehydration.

8. A wastewater treatment system for the resource utilization of waste incinerator slag in the wastewater treatment method according to any one of claims 1-7, characterized in that, include: The crusher is equipped with a recycled water inlet (A), a recycled water inlet (B), a slag mixture inlet, and a material mixture outlet (A). The magnetic separator is equipped with a material mixture inlet A, a recycled water inlet C, and a material mixture outlet B. The jig is equipped with a material mixture B inlet, a recycled water d inlet, a recycled water e inlet, a recovered copper outlet, a solid β outlet, and a material mixture C outlet; The grading drum screen is equipped with a material mixture inlet C, a material mixture outlet D, a solid material outlet γ, and a solid material outlet δ. The spiral sand washing machine is equipped with a solid material inlet (δ), a recycled water inlet (f), a material mixture outlet (E), and a recycled water outlet (g). The first eddy current aluminum separator is equipped with a solid material γ input port, a recycled aluminum output port, and a wastewater I output port; The second eddy current aluminum separator is equipped with a material mixture E inlet and a wastewater II outlet. The shaking table is equipped with a solid material β input port, a recycled water k input port, and a wastewater Ⅲ output port; The water-reducing hopper is equipped with a material mixture inlet D, a material mixture outlet F, and a material mixture outlet G. The high-frequency dewatering screen is equipped with a material mixture inlet G, a material mixture inlet H, a recycled water outlet e, a wastewater outlet IV, and a recycled water outlet i. The regulating water tank is equipped with wastewater inlet IV, wastewater inlet III, wastewater inlet I, wastewater inlet II, and wastewater outlet V; The sedimentation tank is equipped with a material mixture inlet F, a recycled water inlet g, a recycled water outlet h, a wastewater outlet VI, and a recycled water inlet i. The hydrocyclone is equipped with a recycled water outlet (a), a recycled water inlet (h), and a material mixture outlet (H). The thickener is equipped with a wastewater V inlet, a wastewater VII outlet, and a wastewater VI inlet; The clean water tank is equipped with a wastewater inlet VII, a recycled water outlet b, a recycled water outlet c, a recycled water outlet d, a recycled water outlet k, and a recycled water outlet f. The inlet and outlet of the recycled water a, b, c, d, e, f, g, h, i, k are connected one-to-one by pipes. The inlets of the material mixtures A, B, C, D, E, F, G, and H are connected to the outlets of the material mixtures A, B, C, D, E, F, G, and H through corresponding pipes. The inlets of wastewater I, II, III, IV, V, VI, and VII are connected to the outlets of wastewater I, II, III, IV, V, VI, and VII through corresponding pipes. The input ports of the solids β, γ, and δ are connected to the output ports of the solids β, γ, and δ in a one-to-one correspondence via pipes.

9. The wastewater treatment system for resource utilization of waste incinerator slag according to claim 8, characterized in that, A filter press and a clear water regulating tank are also provided between the thickener and the clear water tank.

10. The wastewater treatment system for resource utilization of waste incinerator slag according to claim 8, characterized in that, The crusher includes one or both of sand crushing and iron crushing.

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