Sorting device for solid waste resource utilization and process thereof

Abstract

The present application relates to the technical field of ore sorting, and specifically relates to a sorting device for solid waste resource utilization and a process thereof, which comprises, from left to right, a crushing device, a first conveying belt, a screening device, a second conveying belt, a cloth vibrating screen and a photoelectric intelligent sorting machine. An inclined plate is arranged above the conveying belt of the photoelectric intelligent sorting machine. The inclined plate is rotationally connected with a plurality of cleaning plates. The plurality of cleaning plates are each provided with a magnetic surface. Adjacent cleaning plates are connected through a traction line. The photoelectric intelligent sorting machine is provided with an air bag for abutting against the cleaning plates. The air bag is provided with a non-Newtonian flow. The photoelectric detector of the photoelectric intelligent sorting machine is provided with a transparent dustproof cover. The transparent dustproof cover is provided with an inclined surface flush with the inclined plate. The inclined surface is arranged on the lower side of the inclined plate. The cleaning plate is arranged in cooperation with the inclined surface. The present application solves the problem of over-saturation of the magnetic surface of the existing single iron removal device over time, which further leads to poor iron removal effect. The present application is suitable for removing iron filings in the photoelectric sorting process.

Description

TECHNICAL FIELD

[0001] The present scheme belongs to the technical field of ore sorting, and particularly relates to a sorting device for solid waste resource utilization and a process thereof. BACKGROUND

[0002] The Ashele copper mine is a rare polymetallic copper-rich deposit in China, involving raw ore with a copper grade of 2.5%, a zinc grade of 1.5%, a gold grade of 0.42 g / t, and a silver grade of 27.04 g / t. The stacked waste rock contains harmful chemical substances, which may seep into the soil and groundwater if not properly and timely treated, limiting other development uses of the land and causing harm to the ecological system. To alleviate the above effects and improve resource integration utilization rate, Ashele carries out a waste rock sorting project, using a screening device, an optoelectronic intelligent sorting machine, and a dry shaking table to sort out ores and waste rocks of different diameters, and using waste rocks with a diameter less than 10 mm as underground roadway shotcrete support materials and waste rocks with a diameter less than 20 mm as underground mining filling aggregates.

[0003] The existing invention with the publication (announcement) number of "CN112221657B" provides a phosphorite optoelectronic beneficiation sorting process. The phosphorite raw ore is screened, the screened ore is transported to an optoelectronic sorting machine by a belt conveyor, X-ray perspective ore and substance identification is performed, each ore is identified by X-ray, data is collected by a detector, and ores and waste rocks are distinguished by intelligent algorithm. After the identification by the optoelectronic sorting machine is completed, high-speed air blast guns are used for accurate hitting to separate the concentrate and the tailings, and the optoelectronic beneficiation of the phosphorite is completed. In the screening process of the phosphorite raw ore, the >50 mm particle size ore after crushing and vibration screening is broken again, and the 20-50 mm particle size ore is sent to the optoelectronic sorting machine for optoelectronic sorting.

[0004] Due to the fact that the surface of the Ashele copper mine is rich in a large amount of iron minerals, the surface of the waste rock is covered with iron impurities. If the existing optoelectronic intelligent sorting machine does not timely remove the iron impurities covering the surface of the ore, the X-ray transmittance and reflectivity of the optoelectronic detector to the ore will be affected, and the optoelectronic detector cannot accurately distinguish the differences between the ores, resulting in a decrease in classification accuracy. The existing single iron removal device has the following defects: first, with the passage of time, the magnetic surface of the iron absorption device will be gradually covered with iron filings, forming an iron accumulation layer, which will reduce the effective absorption area of the iron absorption device. When the surface area of the iron absorption device is completely covered, the effect of the iron absorption device will be significantly reduced. Second, as the amount of absorbed iron filings increases, the iron filings may accumulate inside the iron absorption device, causing blockage, which will increase the residence time of the iron filings in the iron absorption device and make it more difficult to clean the iron absorption device. Therefore, there is an urgent need for a sorting device for solid waste resource utilization. SUMMARY

[0005] The purpose of the present scheme is to provide a sorting device for solid waste resource utilization to solve the problem that the magnetic surface of the existing single set of iron removal device is oversaturated over time, thereby causing poor iron removal effect.

[0006] In order to achieve the above purpose, the present scheme provides a sorting device for solid waste resource utilization, which comprises a crushing device, a first conveyor belt, a screening device, a second conveyor belt, a material vibrating screen and a photoelectric intelligent sorting machine arranged in sequence from left to right. A slope plate is arranged above the conveyor belt of the photoelectric intelligent sorting machine, and a plurality of cleaning plates are rotationally connected to the slope plate. The plurality of cleaning plates are each provided with a magnetic surface, and adjacent cleaning plates are connected by a traction line. The photoelectric intelligent sorting machine is provided with an air bag for abutting against the cleaning plates, and the air bag is filled with a non-Newtonian fluid.

[0007] The principle of the present scheme is as follows: (1) The waste rock is first crushed by the crushing device, and the crushed waste rock is conveyed to the screening device by the first conveyor belt for screening. The waste rock meeting the diameter is conveyed to the material vibrating screen by the second conveyor belt and then transported to the photoelectric intelligent sorting machine. (2) In the photoelectric intelligent sorting machine, the slope plate above the conveyor belt is rotationally connected to a plurality of cleaning plates, and the cleaning plates are each provided with a magnetic surface for adsorbing iron filings. When the ore enters the conveyor belt of the photoelectric intelligent sorting machine and passes through the magnetic surface of the cleaning plate, the iron filings attached to the surface of the ore are adsorbed and removed. (3) The non-Newtonian fluid filled in the air bag will exhibit different responses when subjected to different impact forces. When the magnetic surface of the cleaning plate closest to the air bag adsorbs enough iron filings, its weight continuously increases, and when it exceeds the maximum weight that the air bag can bear, the cleaning plate begins to slowly rotate in the clockwise direction along the slope plate. At the moment when the cleaning plate breaks away from the restraint of the air bag, it obtains a large potential energy by relying on the iron filings adsorbed by its magnetic surface and its own weight, and at the moment when it rotates to the maximum angle, it tightens the traction line connected thereto, thereby driving the next cleaning plate connected by the traction line to rotate and obtaining a large impact force. When the air bag is subjected to a large impact force, the viscous properties of the non-Newtonian fluid inside the air bag will cause the air bag to rapidly increase in hardness after being impacted, so as to offset the impact force of the cleaning plate and effectively limit the movement of the cleaning plate, until the next cleaning plate adsorbs enough iron filings, and its movement trajectory and effect are the same as those of the previous cleaning plate. When the air bag is subjected to a small impact force, the viscous properties of the non-Newtonian fluid will not significantly increase the hardness, so the air bag will be relatively soft, which enables the cleaning plate magnetic surface to break away from the restraint of the air bag after adsorbing enough iron filings, rotate along the slope plate, and thereby drive the next cleaning plate to abut against the air bag by tightening the traction line.

[0008] The technical effects of the present scheme are: (1) The effect of the cleaning plate: firstly, the magnetic surface on the cleaning plate can effectively adsorb the iron filings attached to the surface of the waste stone, ensuring that the iron impurities in the waste stone are removed; secondly, the cleaning plate is rotationally connected with the inclined plate, and after the cleaning plate adsorbs enough iron filings, it can rotate along the inclined plate and tighten the connected traction line, driving the next cleaning plate, forming a chain effect, and the effect of the next cleaning plate is the same as that of the previous cleaning plate, thereby realizing the continuous cleaning of the iron filings. (2) The effect of the air bag: firstly, the air bag ensures that the cleaning plate is released at the right time to prevent the cleaning plate from rotating too early or chaotically, so that each cleaning plate will start to rotate after adsorbing enough iron filings; secondly, the air bag also limits the movement range of the cleaning plate to ensure that it rotates along the predetermined trajectory, thereby driving the traction line and limiting the next cleaning plate.

[0009] Further, the cleaning plate is provided with a wire slot for accommodating the traction line.

[0010] The technical effects of the present scheme are to ensure the orderly arrangement of the traction line, fix and protect the traction line, avoid its loosening or being entangled by external objects, and maintain the coordinated movement of adjacent cleaning plates.

[0011] Further, the multiple sets of cleaning plates are provided with dust covers.

[0012] The technical effects of the present scheme are to prevent dust and impurities from entering the interior of the cleaning plate.

[0013] Further, the photoelectric detector of the electric sorting device is provided with a transparent dust cover, the transparent dust cover is provided with an inclined surface flush with the inclined plate, the inclined surface is arranged on the lower side of the inclined plate, and the cleaning plate is arranged in cooperation with the inclined surface.

[0014] The technical effects of the present scheme are that since the inclined surface is flush with the inclined plate, the cleaning plate can scan and remove the dust on the inclined surface of the transparent dust cover while rotating clockwise along the inclined plate.

[0015] Further, the multiple sets of cleaning plates are arranged at equal distances, and the lengths of the multiple sets of cleaning plates increase successively from bottom to top, and the area scanned by any cleaning plate is not less than the area of the inclined surface.

[0016] The technical effects of the present scheme are to ensure that each set of cleaning plates covers an equal area during rotation and scanning, so that each set of cleaning plates can remove the dust on the inclined surface of the transparent dust cover.

[0017] Further, the contact surfaces of the multiple sets of cleaning plates and the inclined surface are provided with dust-removing velvet surfaces.

[0018] The technical effects of the present scheme are to help remove dust adhering to the inclined surface of the transparent dust cover.

[0019] Further, the photoelectric intelligent sorting machine is provided with an air pump, a plurality of cleaning plates are arranged in cooperation with the air pump, the air pump is connected with an air pipe, the air pipe is connected with a nozzle, and the direction of the nozzle is flush with the inclined surface.

[0020] The technical effect of the present scheme is that the direction of the air flow sprayed by the nozzle is flush with the inclined surface, further enhancing the dust removal capacity and ensuring that the dust can be effectively removed.

[0021] Further, the discharge end of the second conveying belt is provided with a dry shaking table, and the dry shaking table is provided with a dry dust collector.

[0022] The technical effect of the present scheme is that the dry shaking table is used for sorting ore and waste rock, and waste rock with a diameter less than 10 mm is used as a support material for underground roadway concrete spraying, and the dry dust collector is used for recycling dust.

[0023] A sorting process for solid waste resource utilization includes the following steps:

[0024] Step one: the feeding trolley is arranged above the inlet of the crushing device, the waste rock is crushed by the crushing device and then conveyed to the screening device by the first conveying belt, the screening device screens the crushed waste rock into A-class waste rock with a diameter greater than 40 mm, B-class waste rock with a diameter greater than or equal to 10 mm and less than or equal to 40 mm, and C-class waste rock with a diameter less than 10 mm, and then the A-class waste rock and the B-class waste rock are conveyed to the photoelectric intelligent sorting machine by the second conveying belt, and the C-class waste rock is conveyed to the dry shaking table by the second conveying belt.

[0025] Step two: the dry shaking table classifies the C-class waste rock into ore and waste rock as classification objects, retains the ore, and then the waste rock is conveyed to the dry shaking table again, and the ore and the underground roadway concrete spraying support material are obtained through the secondary screening of the dry shaking table.

[0026] Step three: the photoelectric intelligent sorting machine classifies the A-class waste rock and the B-class waste rock into ore and waste rock as classification objects, retains the ore, and then the waste rock is conveyed to the crushing device by the feeding trolley, the waste rock is crushed again by the crushing device, and then the waste rock is conveyed to the screening device by the first conveying belt.

[0027] Step four: the screening device screens the twice-crushed waste rock into D-class waste rock with a diameter greater than or equal to 20 mm and E-class waste rock with a diameter less than 20 mm, and the E-class waste rock is used as a filling aggregate for underground mining, and the D-class waste rock is conveyed to the crushing device for crushing again, and then the D-class waste rock is screened by the screening device again until the diameter of the waste rock is less than 20 mm.

[0028] The technical effects of the scheme are as follows: (1) improving resource integration utilization rate: through multiple crushing and screening of waste rocks, waste rocks and ores are separated, ores are reserved, waste rocks with a diameter less than 10 mm are used as raw materials for roadway concrete supporting, waste rocks with a diameter less than 20 mm are used as filling aggregates for underground mining, the demand for external filling aggregates and concrete sandstone materials is reduced, the consumption of natural sandstone materials is reduced, valuable ore resources can be effectively utilized, the scheme is more green and environmentally friendly, the mining and filling cost is reduced, and the resource utilization efficiency is improved. (2) avoiding soil pollution: waste rocks contain harmful chemical substances, waste rocks are classified out through the sorting process, and the pollution of waste rocks to soil and underground water can be avoided, and the ecological system of the land is protected. (3) improving the grade and quality of ores: valuable ores in waste rocks are separated through the sorting process, and the grade and quality of ores can be improved through repeated screening and crushing treatment, and the economic benefit of copper mines is improved. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 The application discloses a sorting process for solid waste resource utilization Figure 1 ;

[0030] Figure 2 The application discloses a sorting process for solid waste resource utilization Figure 2 ;

[0031] Figure 3 The application discloses a sorting process for solid waste resource utilization

[0032] Figure 4 The application discloses a sorting process for solid waste resource utilization

[0033] Figure 5 The application discloses a sorting process for solid waste resource utilization Figure 1 ;

[0034] Figure 6 The application discloses a sorting process for solid waste resource utilization Figure 2 ;

[0035] Figure 7 The application discloses a sorting process for solid waste resource utilization

[0036] Figure 8 The application discloses a sorting process for solid waste resource utilization

[0037] Figure 9 The application discloses a sorting process for solid waste resource utilization

[0038] In the diagram: 1. Crushing device; 2. First conveyor belt; 3. Screening device; 4. Second conveyor belt; 5. Photoelectric intelligent sorting machine; 5. Inclined plate; 501. Fabric vibrating screen; 6. Cleaning plate; 7. Magnetic surface; 701. Dust removal surface; 702. Cable trough; 703. Traction line; 8. Airbag; 9. Transparent dust cover; 10. Inclined surface; 1001. Photoelectric detector; 11. Dust cover; 12. Air pump; 13. Air pipe; 14. Nozzle; 15. Detailed Implementation

[0039] The following detailed explanation illustrates the specific implementation methods:

[0040] Example:

[0041] like Figures 1-2 As shown, a sorting process for solid waste resource recovery specifically includes the following steps:

[0042] Step 1: The feeding car is set up above the feed inlet of the crushing device 1. After the waste rock is crushed by the crushing device 1, it is transported to the screening device 3 by the first conveyor belt 2. The screening device 3 screens the crushed waste rock into Class A waste rock (diameter greater than 40mm), Class B waste rock (diameter greater than or equal to 10mm and less than or equal to 40mm) and Class C waste rock (diameter less than 10mm). Then, Class A waste rock and Class B waste rock are transported to the photoelectric intelligent sorting machine 5 by the second conveyor belt 4, and Class C waste rock is transported to the dry shaking table by the second conveyor belt 4.

[0043] Step 2: The dry shaking table separates the Class C waste rock into ore and waste rock, retains the ore, and transports the waste rock back into the dry shaking table. After secondary screening by the dry shaking table, the ore and the raw materials for shotcrete support in the underground roadway are obtained.

[0044] Step 3: The photoelectric intelligent sorting machine 5 sorts Class A waste rock and Class B waste rock into ore and waste rock respectively, retains the ore, and transports the waste rock to the crushing device 1 through the feeding car. After the crushing device 1 crushes the waste rock a second time, it is then transported to the screening device 3 through the first conveyor belt 2.

[0045] Step 4: The screening device 3 separates the secondary crushed waste rock into Class D waste rock (diameter greater than or equal to 20 mm) and Class E waste rock (diameter less than 20 mm). Class E waste rock is used as backfill aggregate for underground mining. Class D waste rock is transported to the crushing device 1 for further crushing and then screened again by the screening device 3 until the diameter of the waste rock is less than 20 mm.

[0046] like Figure 2As shown, in order to realize the above sorting process, the application provides a sorting device for solid waste resource utilization, which is sequentially provided with a feeding trolley, a feeder, a crushing device 1, a first conveying belt 2, a screening device 3, a second conveying belt 4, a cloth vibrating screen 6 and a photoelectric intelligent sorting machine 5 from left to right. The feeding trolley is arranged above the feeding inlet of the feeder. The discharging outlet of the feeder is in communication with the feeding inlet of the crushing device 1. The discharging outlet of the crushing device 1 is connected with the first conveying belt 2. The discharging outlet of the first conveying belt 2 is connected with the feeding inlet of the screening device 3. The discharging outlet of the screening device 3 is connected with the second conveying belt 4. The discharging outlet of the second conveying belt 4 is connected with the feeding inlet of the cloth vibrating screen 6. The discharging outlet of the cloth vibrating screen 6 is connected with the feeding inlet of the photoelectric intelligent sorting machine 5. The discharging outlets of the screening device 3 and the photoelectric intelligent sorting machine 5 are provided with a spray dust removal system for avoiding dust pollution.

[0047] As shown in the figure, Figures 3-7 As shown in the figure, the conveying belt of the photoelectric intelligent sorting machine 5 is provided with an inclined plate 501 which is inclined at an angle of 60 degrees. Five cleaning plates 7 are rotationally connected to the inclined plate 501. One side of each of the five cleaning plates 7 close to the conveying belt is provided with a magnetic surface 701 for adsorbing iron filings. Adjacent two cleaning plates 7 are connected with each other through a traction line 8. Through the above arrangement, the inclined plate 501 which is inclined at an angle of 60 degrees can not only ensure that the distance between the magnetic surface 701 and the iron filings is moderate, but also ensure that the potential energy obtained by the rotation of the cleaning plate 7 along the inclined plate 501 is maximum. When the ore enters the conveying belt of the photoelectric intelligent sorting machine 5 and passes through the magnetic surface 701 of the cleaning plate 7, the iron filings attached to the surface of the ore will be adsorbed by the magnetic surface 701. With the continuous adsorption of the iron filings by the magnetic surface 701, the weight of the cleaning plate 7 will increase. Then, the cleaning plate 7 will rotate along the inclined plate 501 and pull the traction line 8 connected thereto when it rotates to the maximum angle, so as to drive the next group of cleaning plates and realize the chain effect. Each of the five cleaning plates 7 is provided with a wire slot 703 for accommodating the traction line 8. The contact surface of the cleaning plate 7 and the inclined surface 1001 is provided with a lint-free surface 702. The five cleaning plates 7 are provided with a dust cover 12 to prevent dust from adhering to the cleaning plates 7. The photoelectric intelligent sorting machine 5 is provided with an air bag 9 which is filled with plastic fluid. The rotation of any one of the cleaning plates 7 will be in contact with the air bag 9. Through the above arrangement, the air bag 9 will exhibit different responses when it is subjected to different impact forces of the cleaning plates 7, so as to release or limit the cleaning plates 7 and realize the chain effect.

[0048] As shown in the figure, Figure 8As shown, the photoelectric intelligent sorting machine 5 is provided with a transparent dust cover 10, which is located on the lower side of the inclined plate 501, and the transparent dust cover 10 is integrally formed with an inclined surface 1001 flush with the inclined plate 501. The lengths of the five cleaning plates 7 increase successively from bottom to top. The area of any cleaning plate 7 rotating and scanning along the inclined plate 501 is not less than the area of the inclined surface 1001. Through the above arrangement, when the cleaning plate 7 adsorbs enough iron filings and breaks away from the restriction of the air bag 9, the dust removal velvet surface 702 can clean the dust adhered to the inclined surface 1001 while rotating along the inclined plate 501.

[0049] As shown in the drawings, Figure 9 The photoelectric intelligent sorting machine 5 is provided with an air pump 13, and the five cleaning plates 7 are arranged in cooperation with the air pump 13. The air pump 13 is connected with an air pipe 14, and the air pipe 14 is connected with a nozzle 15. The direction of the nozzle 15 is flush with the inclined surface 1001. Through the above arrangement, when the cleaning plate 7 rotates to the maximum angle along the inclined plate 501, one end of the cleaning plate 7 will hit the air pump 13. The air pump 13 generates gas which is sprayed out through the air pipe 14 by the nozzle 15. The direction of the airflow sprayed by the nozzle 15 is flush with the inclined surface 1001, further enhancing the dust removal capability.

[0050] The specific implementation process is as follows:

[0051] (1) Initial state, the closest cleaning plate 7 to the air bag 9 is in contact with it. Since the magnetic surface 701 of the cleaning plate 7 constantly adsorbs iron filings and impurities, when the overall weight of the first cleaning plate 7 exceeds the maximum weight that the air bag 9 can bear, the first cleaning plate 7 begins to rotate slowly in the clockwise direction along the inclined plate 501. At the moment when it breaks away from the restriction of the air bag 9, it obtains a large potential energy and rotates quickly along the inclined plate 501, and drives the dust removal velvet surface 702 to scan the inclined surface 1001, thereby removing the dust adhered to the inclined surface 1001. (2) Since the two adjacent cleaning plates 7 are connected by a traction line 8, when the first cleaning plate 7 rotates to the maximum angle, the traction line 8 connected thereto will be instantly tightened, thereby driving the second cleaning plate 7 to rotate and making it obtain a large impact force. Since the plastic fluid filled in the air bag 9 has the characteristics of non-Newtonian fluid, at the moment when the second cleaning plate 7 is in contact with the air bag 9, the damping characteristics of the plastic fluid inside the air bag 9 will make the air bag 9 rapidly increase in hardness after being impacted, so as to offset the impact force of the second cleaning plate 7, thereby ensuring that the movement of the cleaning plate 7 can be effectively limited. When the second cleaning plate 7 constantly adsorbs iron filings, its movement trajectory and effect are the same as those of the previous cleaning plate 7. (3) When the first cleaning plate 7 rotates to the maximum angle, one end of the cleaning plate 7 will hit the air pump 13. The gas generated by the air pump 13 flows to the nozzle 15 through the air pipe 14. Since the direction of the nozzle is parallel to the inclined surface 1001, the gas is sprayed onto the inclined surface 1001, further removing the dust adhered thereto.

[0052] The above-mentioned are only embodiments of the present application, and the common knowledge of specific structures and characteristics in the scheme is not described too much. It should be pointed out that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, which will not affect the effect and practicality of the patent. The protection scope claimed in this application should be subject to the content of its claims, and the specific implementation mode and the like recorded in the specification can be used to explain the content of the claims.

Claims

1. A sorting device for solid waste resource recovery, comprising, from left to right, a crushing device (1), a first conveyor belt (2), a screening device (3), a second conveyor belt (4), a fabric vibrating screen (6), and a photoelectric intelligent sorting machine (5), characterized in that: The photoelectric intelligent sorting machine (5) has an inclined plate (501) above the conveyor belt. The inclined plate (501) is rotatably connected to multiple sets of cleaning plates (7). Each set of cleaning plates (7) is provided with a magnetic surface (701). Adjacent cleaning plates (7) are connected by a traction line (8). The photoelectric intelligent sorting machine (5) is provided with an airbag (9) for contacting the cleaning plates (7). The airbag (9) contains a non-Newtonian flow.

2. The sorting device for solid waste resource recovery according to claim 1, characterized in that: The cleaning plate (7) has a groove (703) for accommodating the traction line (8).

3. A sorting device for solid waste resource recovery according to claim 1, characterized in that: The cleaning plate (7) is fitted with a dust cover (12).

4. A sorting device for solid waste resource recovery according to claim 1, characterized in that: The photoelectric detector (11) of the photoelectric intelligent sorting machine (5) is covered with a transparent dust cover (10). The transparent dust cover (10) has an inclined surface (1001) that is flush with the inclined plate (501). The inclined surface (1001) is located on the lower side of the inclined plate (501). The cleaning plate (7) is configured in conjunction with the inclined surface (1001).

5. A sorting device for solid waste resource recovery according to claim 4, characterized in that: Multiple sets of cleaning plates (7) are arranged at equal intervals, and the length of the multiple sets of cleaning plates (7) increases sequentially from bottom to top. The area scanned by any cleaning plate (7) is not less than the area of ​​the inclined surface (1001).

6. A sorting device for solid waste resource recovery according to claim 5, characterized in that: The contact surfaces of the multiple sets of cleaning plates (7) and the inclined surface (1001) are all provided with a dust removal surface (702).

7. A sorting device for solid waste resource recovery according to claim 6, characterized in that: The photoelectric intelligent sorting machine (5) is equipped with an air pump (13), and multiple sets of cleaning plates (7) are set together with the air pump (13). The air pump (13) is connected to an air pipe (14), and the air pipe (14) is connected to a nozzle (15). The nozzle (15) is aligned with the inclined plane (1001).

8. A sorting device for solid waste resource recovery according to claim 1, characterized in that: The discharge end of the second conveyor belt (4) is equipped with a dry shaking table, and the dry shaking table is equipped with a dry dust collector.

9. A sorting process for solid waste resource recovery, comprising using a sorting device for solid waste resource recovery as described in any one of claims 1-8, characterized in that, Includes the following steps: S1. After being crushed by the crushing device (1), the waste rock is conveyed to the screening device (3) by the first conveyor belt (2). The screening device (3) separates the crushed waste rock into Class A waste rock with a diameter greater than 40 mm, Class B waste rock with a diameter greater than or equal to 10 mm and less than or equal to 40 mm, and Class C waste rock with a diameter less than 10 mm. Then, Class A waste rock and Class B waste rock are conveyed to the photoelectric intelligent sorting machine (5) by the second conveyor belt (4), and Class C waste rock is conveyed to the dry shaking table by the second conveyor belt (4). S2. The dry shaking table classifies Class C waste rock into ore and waste rock separately, retains the ore, and transports the waste rock back into the dry shaking table. After secondary screening by the dry shaking table, the ore and the raw materials for shotcrete support in the underground roadway are obtained. S3, Photoelectric Intelligent Sorting Machine (5) classifies Class A waste rock and Class B waste rock as ore and waste rock respectively, retains the ore, and transports the waste rock to the crushing device (1) through the feeding car. After the crushing device (1) crushes the waste rock twice, it is then transported to the screening device (3) through the first conveyor belt (2). S4. The screening device (3) screens the secondary crushed waste rock into Class D waste rock with a diameter greater than or equal to 20 mm and Class E waste rock with a diameter less than 20 mm. Class E waste rock is used as backfill aggregate for underground mining. Class D waste rock is transported to the crushing device (1) for crushing again and then screened again by the screening device (3) until the diameter of the waste rock is less than 20 mm.

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