A high-efficiency vortex sorting device based on coarse and fine screening of waste incinerator slag

Abstract

The utility model discloses a kind of high-efficiency vortex sorting devices based on garbage incineration slag coarse and fine screening, belong to slag screening equipment technical field, including leap sieve, first throw aluminum machine, second throw aluminum machine, first vibrating dewatering screen and second vibrating dewatering screen;Further including subtransport mechanism, its input end is connected with the aluminum slag output end of first throw aluminum machine and second throw aluminum machine respectively;Its output end is equipped with the first lower hopper mouth and second lower hopper mouth of optional closure;Wherein, the first lower hopper mouth is connected to aggregate tank;The second lower hopper mouth is connected to reflux conveying belt, and the other end of reflux conveying belt extends to the upper of leap sieve feed end.The utility model classifies by leap sieve to slag, and the sorting precision of different particle size aluminum slag is promoted;Secondly, vibrating dewatering screen is set in each throw aluminum machine front end, and material moisture is filtered out, to avoid slag soil nodule;Finally, through subtransport mechanism and reflux conveying belt, realize aluminum slag closed loop resorting, improve aluminum slag purity.

Description

Technical Field

[0001] This utility model belongs to the technical field of slag screening equipment, specifically relating to a high-efficiency eddy current separation device based on coarse and fine screening of waste incineration slag. Background Technology

[0002] Municipal solid waste incineration is an important means of achieving waste reduction and harmless treatment. The resulting slag contains a certain proportion of recyclable metals, especially aluminum, whose recycling value is increasingly recognized. In the municipal solid waste incineration slag treatment process, the eddy current separator (commonly known as an aluminum polisher) is a key piece of equipment for recovering non-ferrous metals (mainly aluminum). However, the aluminum polishers commonly used in existing technologies generally do not perform ideally in actual slag sorting, resulting in low purity of the final screened aluminum slag, which is difficult to meet the requirements for subsequent resource utilization. This not only reduces economic benefits but also increases the difficulty of subsequent processing.

[0003] In the prior art, Chinese patent document CN113893939B discloses a high-efficiency crushing and sorting system for waste aluminum, including a crushing system, a sorting system, and a dust removal system. The sorting system integrates screening device II, screening device III, magnetic drum sorting device I, eddy current sorting device I (i.e., aluminum polishing machine), magnetic drum sorting device II, magnetic drum sorting device III, eddy current sorting device II, eddy current sorting device III, X-ray sorting device, and metal induction sorting device. This solution aims to solve the problem of low waste aluminum recycling rate through the combination of multi-stage crushing and multiple types of sorting equipment. However, this high-efficiency crushing and sorting system for waste aluminum is mainly aimed at sorting bauxite or relatively dry waste aluminum raw materials. Its design concept and technical solution are not entirely suitable for the characteristics and sorting requirements of municipal solid waste incineration slag. On the one hand, municipal solid waste incineration slag is usually quite moist and contains a certain amount of moisture. If the eddy current separator in this system is used directly for separation, the damp slag easily adheres and forms nodules inside the equipment, severely hindering the flow and dispersion of the slag and significantly reducing the efficiency of eddy current separation and the separation accuracy of aluminum metal. On the other hand, although this scheme performs eddy current separation after particle screening, the purity of the aluminum slag obtained from a single separation is often insufficient. Theoretically, to improve purity, multiple eddy current separators can be connected in series for multiple separations, but this would drastically increase the footprint of the entire separation system, significantly increase equipment purchase and operation and maintenance costs, and result in poor economic efficiency. In practice, for applications requiring high purity, existing technologies typically employ manual handling, feeding the aluminum slag after the first separation back into the separator for a second separation. This method is inefficient, consumes a large amount of manpower, creates a poor working environment, and is difficult to implement continuously, greatly restricting the improvement of processing efficiency and economic benefits.

[0004] Therefore, in view of the above-mentioned technical problems existing in the prior art, there is an urgent need to provide a high-efficiency eddy current separation device based on coarse and fine screening of waste incineration slag. Summary of the Invention

[0005] In response to the problems in related technologies, this utility model proposes a high-efficiency vortex separation device based on coarse and fine screening of municipal solid waste incinerator slag, in order to solve the technical problems of existing municipal solid waste incinerator slag vortex separation technology, such as the slag soil being prone to nodulation affecting the separation effect, high cost of multi-stage separation, or reliance on inefficient manual secondary separation.

[0006] The technical solution of this utility model is achieved as follows: a high-efficiency eddy current separation device based on coarse and fine screening of waste incineration slag, characterized in that it includes:

[0007] The Yuejin screen is used to receive waste incinerator slag and separate it into coarse sand and fine sand according to particle size, and output them through the coarse sand output end and the fine sand output end respectively.

[0008] The first aluminum polishing machine has its input end connected to the coarse sand output end of the leap screen, and is used to sort coarse sand;

[0009] The second aluminum polishing machine has its input end connected to the fine sand output end of the leaping screen and is used to sort fine sand.

[0010] The first vibrating dewatering screen is located at the front end of the input end of the first aluminum polishing machine;

[0011] The second vibrating dewatering screen is located at the front end of the input end of the second aluminum polishing machine;

[0012] The conveying mechanism has its input end connected to the aluminum slag output end of the first aluminum polisher and the second aluminum polisher, respectively; its output end is provided with a first lower hopper opening and a second lower hopper opening that can be selectively closed; wherein, the first lower hopper opening is connected to the collection trough; the second lower hopper opening is connected to the return conveyor belt, and the other end of the return conveyor belt extends above the feed end of the leap screen.

[0013] This invention uses a leap-in screen to classify slag into coarse and fine grades, which are then transported to a dedicated aluminum slag polishing machine for sorting, significantly improving the sorting accuracy of aluminum slag with different particle sizes. Secondly, a vibrating dewatering screen is installed at the front end of each aluminum slag polishing machine to effectively filter out moisture from the material and prevent slag nodules from causing sorting failure. Finally, a closed-loop re-sorting of aluminum slag is achieved through a distribution mechanism and a return conveyor belt, which greatly improves the purity of the final aluminum slag and completely replaces manual handling, improving sorting efficiency.

[0014] As a further improvement to the above solution, two second aluminum polishing machines are installed, symmetrically distributed. This symmetrical layout significantly improves the fine sand processing capacity, prevents fine sand accumulation and blockage, and ensures continuous and efficient system operation.

[0015] As a further improvement to the above solution, the diversion mechanism includes a hopper connected to the aluminum slag output end, and a diversion trough is provided below the hopper.

[0016] The upper end of the distribution trough is open to connect to the hopper; the two ends of the distribution trough are provided with a first lower hopper opening and a second lower hopper opening; each of the two lower hopper openings is provided with a movable baffle, which can selectively close the first or second lower hopper opening by adjusting the position of the baffle; the bottom of the distribution trough is also provided with a distribution conveyor belt to output aluminum slag from the first or second lower hopper opening. Through the distribution mechanism, closed-loop re-sorting of aluminum slag is achieved, and the aluminum slag after the initial screening is returned to the screen again, replacing manual handling and improving sorting efficiency; after the aluminum slag is fully screened, it is then transported to the collection trough by the distribution mechanism, which greatly improves the final purity of the aluminum slag.

[0017] As a further improvement to the above solution, the baffle includes a fixed plate, the lower part of which is provided with a flexible part; the flexible part is made of rubber, and its shape is adapted to the cross-section of the distribution trough extending in the direction of extension. Gravity is used to allow the flexible part to adaptively block the corresponding lower opening, and the rubber material provides good sealing, effectively ensuring the reliability of the diversion.

[0018] As a further improvement to the above solution, the conveying trough is provided with sliding grooves on both sides of the trough wall near each lower bucket opening; the sliding groove includes a sliding main path extending vertically, and the sliding main path is distributed vertically from bottom to top with a first sliding branch path and a second sliding branch path, each sliding branch path extending downward at an incline, and the ends of the extension paths corresponding to the first locking position and the second locking position; the two sides of the fixing plate respectively protrude to form support shafts, and the support shafts engage with the first locking position or the second locking position.

[0019] When the support shaft of the fixed plate is in the first locking position, the corresponding lower bucket opening is closed; when the support shaft of the fixed plate is in the second locking position, the corresponding lower bucket opening is open. The baffle structure simplifies the diversion operation. Simply switching the support shaft of the baffle between the first and second locking positions can achieve the closure or opening of the corresponding lower bucket opening, greatly reducing the complexity of operation and improving the sorting flexibility.

[0020] As a further improvement to the above solution, multiple support shafts are provided on both sides of the fixing plate in the vertical direction, and the number of the first and second locking positions is adapted to the number of support shafts.

[0021] As a further improvement to the above solution, both the first and second vibrating dewatering screens are inclined, with their high end serving as the inlet and their low end as the outlet, directly connecting to the input end of the corresponding aluminum polishing machine. This inclined design, combined with vibration, enhances the dewatering effect, while direct connection to the aluminum polishing machine avoids secondary water retention, eliminating the risk of soil nodule formation at the source.

[0022] As a further improvement to the above solution, the coarse sand output end of the vibrating screen is connected to the first vibrating dewatering screen via a conveyor belt, and the fine sand output end is connected to the second vibrating dewatering screen via a conveyor belt. The conveyor belt bridges the screening and dewatering processes, ensuring the continuity of material transport and avoiding particle size mixing that could affect subsequent sorting accuracy.

[0023] As a further improvement to the above solution, the tail material output ends of the first and second aluminum polishing machines are connected to a tail material conveyor belt, which extends to the slag collection area. The tail material conveyor belt automatically cleans the slag after sorting, maintaining the continuous operation of the equipment and reducing the frequency of shutdown for slag cleaning.

[0024] As a further improvement to the above solution, the collection trough is a movable material frame. The movable material frame facilitates the rapid transfer and centralized processing of aluminum slag, significantly reducing material turnover time and the intensity of manual handling.

[0025] Beneficial effects:

[0026] This invention uses a leap-in screen to classify slag into coarse and fine grades, which are then transported to a dedicated aluminum slag polishing machine for sorting, significantly improving the sorting accuracy of aluminum slag with different particle sizes. Secondly, a vibrating dewatering screen is installed at the front end of each aluminum slag polishing machine to effectively filter out moisture from the material and prevent slag nodules from causing sorting failure. Finally, a closed-loop re-sorting of aluminum slag is achieved through a distribution mechanism and a return conveyor belt, which greatly improves the purity of the final aluminum slag and completely replaces manual handling, improving sorting efficiency. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the high-efficiency eddy current separation device of this utility model;

[0028] Figure 2 This is a perspective view of the leaping screen of this utility model;

[0029] Figure 3 This is a perspective view of the conveying mechanism of this utility model;

[0030] Figure 4 This is a front view of the conveying trough of this utility model;

[0031] Figure 5 for Figure 4 A magnified view of a portion at point a;

[0032] Figure 6 This is a schematic diagram illustrating the working principle of the baffle closing or opening the lower bucket opening of this utility model.

[0033] Figure label:

[0034] 1. Leaping screen; 11. Coarse sand output end; 12. Fine sand output end;

[0035] 2a. First aluminum polishing machine; 2b. Second aluminum polishing machine;

[0036] 3a. First vibrating dewatering screen; 3b. Second vibrating dewatering screen; 31. Aluminum slag output end; 32. Tailings output end;

[0037] 4. Distribution and transportation organization;

[0038] 41. Hopper;

[0039] 42. Distribution trough; 421. First lower bucket opening; 422. Second lower bucket opening; 423. Chute; 4231. Main sliding path; 4232. First sliding branch path; 4233. Second sliding branch path; K1. First locking position; K2. Second locking position;

[0040] 43. Baffle; 431. Fixing plate; 432. Flexible part; 433. Support shaft;

[0041] 44. Separate transport conveyor belts;

[0042] 5. Collection trough;

[0043] 6. Return conveyor belt;

[0044] 71. Tail material conveyor belt; 72. Slag and soil collection area. Detailed Implementation

[0045] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0046] In the description of this utility model, it should be understood that the term "several" means "at least one", and the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0047] Example:

[0048] like Figures 1-6 As shown, a high-efficiency eddy current separation device based on coarse and fine screening of waste incinerator slag is characterized by comprising:

[0049] The Yuejin screen 1 is used to receive waste incineration slag and screen it into coarse sand and fine sand according to particle size, and output them through coarse sand output end 11 and fine sand output end 12 respectively; specifically, the Yuejin screen 1 includes screens with a part of the screen mesh having a diameter of 8-30mm, configured to screen coarse sand, and a part of the screen mesh having a diameter of 2-8mm, configured to screen fine sand.

[0050] The first aluminum polishing machine 2a has its input end connected to the coarse sand output end 11 of the leap screen 1, and is used to sort coarse sand;

[0051] The second aluminum polishing machine 2b has its input end connected to the fine sand output end 12 of the leaping screen 1, and is used to sort fine sand;

[0052] The first vibrating dewatering screen 3a is set on the material conveying path at the front end of the input end of the first aluminum polishing machine 2a, and is used to pre-dewater the coarse sand.

[0053] The second vibrating dewatering screen 3b is set on the material conveying path at the front end of the input end of the second aluminum polishing machine 2b, and is used to pre-dewater fine sand;

[0054] The tail material conveyor belt 71 has its input end connected to the tail material output end 32 of the first aluminum polishing machine 2a and the second aluminum polishing machine 2b, respectively, and its output end extends to the slag collection area 72. The tail material conveyor belt 71 automatically cleans the slag after sorting, maintains the continuous operation of the equipment, and reduces the frequency of shutdown for slag cleaning.

[0055] The conveying mechanism 4 has its input end connected to the aluminum slag output end 31 of the first aluminum polisher 2a and the second aluminum polisher 2b, respectively; its output end is provided with a first lower hopper opening 421 and a second lower hopper opening 422 that can be selectively closed; wherein, the first lower hopper opening 421 is connected to the collection trough 5; in this embodiment, the collection trough 5 is a movable material frame. Universal wheels are installed at the bottom of the material frame, and the movable material frame facilitates rapid transfer and centralized processing of aluminum slag, significantly reducing material turnover time and manual handling intensity. The second lower hopper opening 422 is connected to the return conveyor belt 6, and the other end of the return conveyor belt 6 extends and is suspended above the feed end of the leap screen 1.

[0056] In this embodiment, two second aluminum polishing machines 2b are provided, and the two second aluminum polishing machines 2b are symmetrically distributed. The two machines process fine sand in parallel, and their input ends are connected to the fine sand output end 12 of the leap screen 1 through a diversion pipe. The two symmetrically arranged second aluminum polishing machines 2b significantly improve the fine sand processing capacity, avoid fine sand accumulation and blockage, and ensure continuous and efficient operation of the system.

[0057] In this embodiment, the diversion mechanism 4 includes a hopper 41 that is connected to the aluminum slag output end 31, and a diversion trough 42 is provided below the hopper 41.

[0058] The upper end of the distribution trough 42 is open to connect with the hopper 41. The two ends of the distribution trough 42 are provided with a first lower hopper opening 421 and a second lower hopper opening 422. Each lower hopper opening is equipped with a movable baffle 43, which can be manually adjusted to selectively close either the first lower hopper opening 421 or the second lower hopper opening 422. The bottom of the distribution trough 42 is also equipped with a distribution conveyor belt 44 to output aluminum slag from either the first lower hopper opening 421 or the second lower hopper opening 422. Specifically, the distribution conveyor belt 44 includes a drive roller and a driven roller, with a belt wound between them. The drive roller is powered by a motor and a reducer, and the conveying direction is changed by the forward or reverse rotation of the motor. During operation, the motor drives the drive roller, which, through friction, drives the belt to rotate in either the forward or reverse direction, thereby achieving bidirectional material conveying to the corresponding lower hopper opening. The aluminum slag is re-sorted in a closed loop through the distribution mechanism 4, which returns the aluminum slag after the initial screening to the collection tank 5, replacing manual handling and improving the sorting efficiency. After the aluminum slag is fully screened, it is transported to the collection tank 5 through the distribution mechanism 4, which greatly improves the final purity of the aluminum slag.

[0059] In this embodiment, the baffle 43 includes a fixed plate 431, and a flexible part 432 is provided at the lower part of the fixed plate 431. The flexible part 432 is made of rubber, and its shape is adapted to the cross-section of the distribution trough 42 in the extending direction to achieve a tight seal with the edge of the corresponding lower hopper opening. The baffle 43 uses gravity to make the flexible part 432 adaptively drop down, blocking the corresponding lower hopper opening. The rubber material provides good sealing performance and effectively ensures the reliability of diversion.

[0060] In this embodiment, the distribution trough 42 is provided with sliding grooves 423 on both sides of the trough wall near each lower bucket opening; the sliding groove 423 includes a sliding main path 4231 extending vertically, and the sliding main path 4231 is distributed vertically from bottom to top with a first sliding branch path 4232 and a second sliding branch path 4233, each sliding branch path extending downward at an incline, and the ends of the extensions corresponding to form a first locking position K1 and a second locking position K2; the two sides of the fixing plate 431 respectively protrude to form support shafts 433, and the support shafts 433 engage with the first locking position K1 or the second locking position K2; there are two support shafts 433 on each side of the fixing plate 431 along the vertical direction, and the number of the first locking positions K1 and the second locking positions K2 is adapted to the number of support shafts 433.

[0061] When the support shaft 433 of the fixed plate 431 is placed in the first locking position K1, the corresponding lower bucket opening is closed; when the support shaft 433 of the fixed plate 431 is placed in the second locking position K2, the corresponding lower bucket opening is opened. The baffle 43 structure simplifies the diversion operation. Simply switching the support shaft 433 of the baffle 43 between the first locking position K1 and the second locking position K2 can achieve the closure or opening of the corresponding lower bucket opening, greatly reducing the complexity of operation and improving the sorting flexibility.

[0062] In this embodiment, both the first vibrating dewatering screen 3a and the second vibrating dewatering screen 3b are inclined at an angle of 15°-25°, with their high end serving as the inlet and their low end as the outlet, directly connecting to the input end of the corresponding aluminum polishing machine. The inclined design, combined with vibration, enhances the dewatering effect, and the direct connection to the aluminum polishing machine avoids secondary water retention, eliminating the risk of slag nodules at the source. In this embodiment, the coarse sand output end 11 of the leaping screen 1 is connected to the inlet end of the first vibrating dewatering screen 3a via a conveyor belt, and the fine sand output end 12 is connected to the inlet end of the second vibrating dewatering screen 3b via a conveyor belt. The conveyor belt bridges the screening and dewatering processes, ensuring continuous material transport and preventing particle size mixing from affecting subsequent sorting accuracy.

[0063] In specific applications, the above-described solution of this utility model provides the following:

[0064] First, the waste incineration slag enters the leap screen 1 for particle size classification. Coarse sand is sent to the first vibrating dewatering screen 3a through the coarse sand output end 11, and fine sand is sent to the second vibrating dewatering screen 3b through the fine sand output end 12. The vibrating dewatering screen separates the surface moisture of the slag through high-frequency vibration and inclined screen surface, so as to reduce the moisture content of the material and completely avoid slag nodules.

[0065] Secondly, the dehydrated coarse and fine sands are fed into their respective aluminum polishing machines for initial eddy current separation. The aluminum slag after the initial separation is then conveyed to the distribution mechanism 4. When the baffle 43 closes the first lower hopper opening 421 and the distribution conveyor belt 44 is directed toward the second lower hopper opening 422, the aluminum slag enters the return conveyor belt 6 through the second lower hopper opening 422 and automatically returns to the leap screen 1 for secondary separation and purification. When the baffle 43 closes the second lower hopper opening 422 and the distribution conveyor belt 44 is directed toward the first lower hopper opening 421, the high-purity aluminum slag falls into the collection trough 5 through the first lower hopper opening 421 for collection.

[0066] Finally, the tailings conveyor belt 71 continuously outputs the slag discharged from the aluminum polishing machine to the slag collection area 72, completing the sorting.

[0067] In this embodiment, the slag is coarsely and finely classified by the leaping screen 1 and then transported to a dedicated aluminum slag polishing machine for sorting, which significantly improves the sorting accuracy of aluminum slag with different particle sizes. Secondly, a vibrating dewatering screen is set at the front end of each aluminum slag polishing machine to effectively filter out the moisture in the material and avoid slag nodules that would cause sorting failure. Finally, the aluminum slag is re-sorted in a closed loop through the distribution mechanism 4 and the return conveyor belt 6, which greatly improves the purity of the final aluminum slag and completely replaces manual handling, thus improving sorting efficiency.

[0068] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A high-efficiency eddy current separation device based on coarse and fine screening of waste incinerator slag, characterized in that, include: The Yuejin screen is used to receive waste incinerator slag and separate it into coarse sand and fine sand according to particle size, and output them through the coarse sand output end and the fine sand output end respectively. The first aluminum polishing machine has its input end connected to the coarse sand output end of the leap screen, and is used to sort coarse sand; The second aluminum polishing machine has its input end connected to the fine sand output end of the leaping screen and is used to sort fine sand. The first vibrating dewatering screen is located at the front end of the input end of the first aluminum polishing machine; The second vibrating dewatering screen is located at the front end of the input end of the second aluminum polishing machine; The conveying mechanism has its input end connected to the aluminum slag output end of the first aluminum polisher and the second aluminum polisher, respectively; its output end is provided with a first lower hopper opening and a second lower hopper opening that can be selectively closed; wherein, the first lower hopper opening is connected to the collection trough; the second lower hopper opening is connected to the return conveyor belt, and the other end of the return conveyor belt extends above the feed end of the leap screen.

2. The high-efficiency eddy current separation device based on coarse and fine screening of waste incinerator slag according to claim 1, characterized in that, Two second aluminum polishing machines are provided, and the two second aluminum polishing machines are symmetrically distributed.

3. A high-efficiency eddy current separation device based on coarse and fine screening of waste incinerator slag according to claim 1 or 2, characterized in that, The diversion and conveying mechanism includes a hopper that is connected to the aluminum slag output end, and a diversion and conveying trough is provided below the hopper; The upper end of the distribution trough is open to connect to the hopper; the two ends of the distribution trough are provided with the first lower hopper opening and the second lower hopper opening; each of the two lower hopper openings is provided with a movable baffle, which can selectively close the first lower hopper opening or the second lower hopper opening by adjusting the position of the baffle; the bottom of the distribution trough is also provided with a distribution conveyor belt to output aluminum slag from the first lower hopper opening or the second lower hopper opening.

4. The high-efficiency eddy current separation device based on coarse and fine screening of waste incinerator slag according to claim 3, characterized in that, The baffle includes a fixed plate, and a flexible part is provided at the lower part of the fixed plate; the flexible part is made of rubber, and the shape of the flexible part is adapted to the cross-section of the distribution trough in the extension direction.

5. The high-efficiency eddy current separation device based on coarse and fine screening of waste incinerator slag according to claim 4, characterized in that, The conveying trough has sliding grooves on both sides of the trough wall near each lower bucket opening; the sliding groove includes a sliding main path extending vertically, and the sliding main path has a first sliding branch path and a second sliding branch path distributed vertically from bottom to top. Each sliding branch path extends downward at an incline, and the ends of the extensions form a first locking position and a second locking position respectively; the two sides of the fixing plate respectively protrude to form support shafts, and the support shafts engage with the first locking position or the second locking position. When the support shaft of the fixed plate is in the first locking position, the corresponding lower bucket opening is closed; when the support shaft of the fixed plate is in the second locking position, the corresponding lower bucket opening is opened.

6. The high-efficiency eddy current separation device based on coarse and fine screening of waste incinerator slag according to claim 5, characterized in that, Multiple vertical support shafts are provided on both sides of the fixing plate, and the number of the first and second locking positions is adapted to the number of support shafts.

7. The high-efficiency eddy current separation device based on coarse and fine screening of waste incinerator slag according to claim 1, characterized in that, Both the first and second vibrating dewatering screens are inclined, with their high end being the inlet and their low end being the outlet, which is directly connected to the input end of the corresponding aluminum polishing machine.

8. The high-efficiency eddy current separation device based on coarse and fine screening of waste incinerator slag according to claim 1, characterized in that, The coarse sand output end of the Yuejin screen is connected to the first vibrating dewatering screen via a conveyor belt, and the fine sand output end is connected to the second vibrating dewatering screen via a conveyor belt.

9. A high-efficiency eddy current separation device based on coarse and fine screening of waste incinerator slag according to claim 1, characterized in that, The tail material output ends of the first and second aluminum polishing machines are connected to tail material conveyor belts, which extend to the slag collection area.

10. A high-efficiency eddy current separation device based on coarse and fine screening of waste incinerator slag according to claim 1, characterized in that, The material collection trough is a movable material frame.

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