Environment-friendly treatment equipment for waste incineration slag

Abstract

The invention discloses environment-friendly treatment equipment for waste incineration slag. The environment-friendly treatment equipment comprises a sorting disc, a material bin, a material guide disc, a crushing box and a wet magnetic separation mechanism, according to the slag sorting device, the sorting disc with the multiple screening areas with different pore sizes is arranged, the material stirring assembly is arranged in the sorting disc, after the slag is conveyed into the sorting disc, the slag is continuously distributed to the inner side of the material stirring assembly, and under rotary stirring of the material stirring assembly, the slag with different particle sizes can be fully screened through the different screening areas from front to back; the method comprises the following steps: screening slag with different particle sizes step by step after the slag runs for nearly one week, improving the screening effect, introducing the screened and graded slag into a crushing box for partitioned crushing, and introducing the crushed slag into a plurality of magnetic separation regions of a wet magnetic separation mechanism one by one through a guide plate, so as to achieve the purpose of screening the slag with different particle sizes. The furnace slag is magnetically screened in a plurality of magnetic separation areas by using a liquid medium, so that the magnetic separation effect on metal materials in the furnace slag is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of slag treatment, and more specifically to an environmentally friendly treatment device for waste incineration slag. Background Art

[0002] The slag after the incineration of domestic waste generally contains recyclable substances such as heavy metals. The incineration slag needs to be treated secondary to achieve the recovery of metal materials, and the sorted slag can be prepared into recycled building blocks or other reusable environmentally friendly products to improve resource utilization.

[0003] Screening equipment is often needed in the early stage of recycling slag generated during the incineration process. The slag is subjected to a multi-stage screening process by the screening equipment, and then a subsequent crushing and heavy metal magnetic separation process is carried out. For example, patent number CN109848046B discloses "A Waste Incineration Sorting Equipment". Multiple leakage ports arranged on the sorting leakage plate can sort slag of various particle sizes step by step under the cooperation of the sorting plate. Slag of the same size type enters the corresponding internal receiving box for storage;

[0004] Although it is possible to achieve the effect of multi-stage sorting of slag of different particle sizes to a certain extent, since only sorting plates with different inclination angles are set on the sorting leakage plate, the range of the sorting area formed by each sorting plate and the leakage port is limited. When the slag is poured downward from the top of the sorting leakage plate, the slag has a certain impact force. On the one hand, small particles of slag are easily mixed in large particles of slag and move downward, and the small particles are not screened out in time. On the other hand, large particles of slag are easily blocked in the sorting plate and the leakage port near the bottom during the downward movement, resulting in less than optimal sorting effect. In addition, it is difficult to recycle the metal material of the slag only through sorting work.

[0005] To this end, we propose an environmentally friendly treatment equipment for waste incineration slag to address the above-mentioned slag sorting problem. Summary of the invention

[0006] The purpose of the present invention is to solve the existing practical production problems and provide an environmentally friendly treatment device for waste incineration slag compared with the prior art.

[0007] The object of the present invention can be achieved by the following technical scheme: a kind of environmental protection treatment equipment for waste incineration slag, including a sorting plate, a silo, a guide plate, a crushing box and a wet magnetic separation mechanism, the bottom of the silo is connected with the inside of the sorting plate through a feeding channel, the bottom of the sorting plate is distributed with a screening area 1, a screening area 2 and a screening area 3 and a straight discharge port along the circumferential direction, the sorting plate is internally driven to be installed with a material shifting component for rotating and stirring the slag, the bottom of the sorting plate is fixedly installed with a guide plate, and the guide plate is also provided with a diversion component for diverting and conveying the slag of different particle sizes after screening;

[0008] The crushing box is provided with a plurality of crushing chambers connected with the conveying and diverting components along the front-to-back direction, a pair of mutually adapted crushing rollers are rotatably installed in the plurality of crushing chambers, the wet magnetic separation mechanism comprises a magnetic separation frame and a magnetic separation roller rotatably installed on the magnetic separation frame, a plurality of partition components fixedly installed with the magnetic separation frame are movably distributed on the magnetic separation roller at intervals, the partition components divide the horizontal section of the magnetic separation roller into a plurality of magnetic separation zones corresponding to the positions of the plurality of crushing chambers one by one, the bottom of each crushing chamber is connected with one side of the upper end of the magnetic separation zone through a guide plate inclined downwardly arranged, the upper end of the magnetic separation frame is also provided with a mounting plate, and a spray pipe and an injection pipe located on both sides above the magnetic separation zone are respectively provided on the left and right sides of the mounting plate.

[0009] Furthermore, the material shifting assembly comprises a rotating sleeve rotatably mounted on the axial center position of the sorting disk, and a plurality of material shifting plates whose outer ends are movably fitted to the inner wall of the sorting disk are annularly distributed on the outer end wall of the rotating sleeve, and a slag pre-storage space is formed between two adjacent material shifting plates.

[0010] Furthermore, the diversion component includes material guide inclined plates which are annularly distributed inside the material guide plate and correspond one-to-one to the positions of screening area one, screening area two, and screening area three. Each group of material guide inclined plates is provided with a pair, and the lower ends of a pair of material guide inclined plates are inclined and arranged close to the chute. The bottom of the material guide plate is provided with chutes located respectively below the multiple groups of material guide inclined plates and the straight discharge outlets along the circumferential direction, and the bottom end of each chute is externally connected to a material guide pipe which is arranged with a conveying end toward the side of the crushing box.

[0011] Furthermore, the multiple material guide pipes are respectively penetrated into the multiple crushing chambers one by one at one end away from the material guide plate, and a material guide platform connected to the port of the material guide pipe is provided on one side of the top end of the crushing chamber, so as to facilitate the introduction of the sifted slag of different particle sizes into the crushing chamber one by one. The size of the crushing chamber can be selected corresponding to the slag of different particle sizes, that is, the internal length of the crushing chamber corresponding to the larger the slag particle size is, the longer it can be.

[0012] Furthermore, the separation assembly includes a separation fan that is movably mounted on the magnetic separation roller and fixed on the magnetic separation frame, an upper partition plate that is movably fitted to the middle part of the top end of the magnetic separation roller is fixed between the upper ends of two adjacent separation fans, the upper end of the upper partition plate is connected to the bottom end of the mounting plate, and the lower end of the upper partition plate is movably fitted to the outer end wall of the magnetic separation roller, and the magnetic separation zone is an outer ring space formed by the two adjacent separation fans and the outer wall of the magnetic separation roller.

[0013] Furthermore, a lower partition is fixed between the lower ends of two adjacent partition fans, and drainage plates that are inclined outward and extend downward are fixed on both sides of the upper ends of the lower partition. Drainage pools are provided on the left and right sides of the lower end of the magnetic separation frame, and a plurality of drainage grooves connected to the outer ends of the drainage plates are opened on the drainage pool, and a drainage pipe is connected to the outside of the drainage grooves.

[0014] Furthermore, each of the magnetic separation zones is provided with a focusing ring which is coaxially arranged with the magnetic separation roller and fixed between two adjacent dividing fans. The upper end of the focusing ring is connected to the lower end of the guide plate, and the lower end of the focusing ring extends to the lower edge of the magnetic separation roller and does not exceed the bottom of the magnetic separation roller. When the magnetic separation is carried out, the slag is discharged downward by the guide plate. At the same time, water washing liquid is sprayed on the guide plate through the spray pipe, and the slag mixed with the water solution enters the focusing magnetic separation gap together, and the magnetic material and the non-magnetic material are separated in the liquid medium. A focusing magnetic separation gap is formed between the focusing ring and the outer wall of the magnetic separation roller, thereby expanding the contact area between the slag discharged downward and the outer end wall of the magnetic separation roller, thereby effectively improving the wet magnetic separation effect.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] (1) This scheme is to set up a sorting plate with multiple screening areas with different aperture sizes, and a material shifting assembly is set in the sorting plate. After the slag is transported to the sorting plate, the slag is continuously distributed to the inner side of the material shifting assembly, and under the rotation and shifting of the material shifting assembly, slag of different particle sizes can be fully screened from front to back through different screening areas, so that different particle sizes can be screened step by step after the slag has been running for nearly one week, thereby improving the screening effect. The slag after screening and classification is then introduced into the crushing box for zoned crushing. The crushed slag is then introduced into multiple magnetic separation areas of the wet magnetic separation mechanism one by one by the guide plate, and the slag is subjected to zoned magnetic screening in multiple magnetic separation areas by using liquid medium, thereby effectively improving the magnetic separation effect of metal materials in the slag.

[0017] (2) This scheme optimizes the process of traditional magnetic screening of metal materials. The slag crushed by multiple crushing chambers is transported one by one to the magnetic separation area of ​​the wet magnetic separation mechanism. A focusing ring is added in each magnetic separation area to form a focusing magnetic separation gap between the focusing ring and the outer wall of the magnetic separation roller, thereby expanding the contact area between the slag discharged downward and the outer end wall of the magnetic separation roller, effectively improving the wet magnetic separation effect. After the magnetic material adheres to the magnetic separation roller and rotates to the other side with the magnetic separation roller, the magnetic metal attached to the magnetic separation roller is washed downward by the injection pipe, thereby completing the efficient separation of magnetic and non-magnetic materials in the liquid medium. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 It is a structural schematic diagram of another perspective of the present invention;

[0020] Figure 3 It is a schematic diagram of the internal structure of the sorting tray of the present invention;

[0021] Figure 4 It is a schematic diagram of the structure when the sorting tray and the material guide tray of the present invention are detached;

[0022] Figure 5 It is a structural schematic diagram of the junction between the sorting plate and the material shifting assembly of the present invention;

[0023] Figure 6 A bottom view of the material guide plate of the present invention;

[0024] Figure 7 It is a partial top view of the present invention;

[0025] Figure 8 A top view of a crushing box of the present invention;

[0026] Fig. 9 It is a structural schematic diagram of the wet magnetic separation mechanism of the present invention;

[0027] Fig.10 It is a structural schematic diagram of the wet magnetic separation mechanism of the present invention from another perspective;

[0028] Fig.11 It is a cross-sectional view of the slag of the present invention when it enters a wet magnetic separation mechanism for magnetic separation after being crushed.

[0029] Description of the numbers in the figure:

[0030] 1. Sorting plate; 101. Screening area 1; 102. Screening area 2; 103. Screening area 3; 104. Straight discharge port; 2. Material bin; 3. Material shifting assembly; 31. Rotating sleeve; 302. Material shifting plate; 4. Material guide plate; 401. Material guide inclined plate; 402. Chute; 403. Material guide pipe; 5. Crushing box; 501. Crushing roller; 502. Guide plate; 6. Magnetic separation frame; 7. Magnetic separation roller; 8. Partition fan; 9. Upper partition; 10. Focusing ring; 11. Mounting plate; 12. Spray pipe; 13. Injection pipe; 14. Drainage plate; 15. Drainage pool. DETAILED DESCRIPTION

[0031] The following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all the embodiments. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments of the present invention belong to the scope of protection of the present invention.

[0032] Example 1, the present invention discloses an environmental protection treatment device for waste incineration slag, please refer to Figure 1 , Figure 2 , including a sorting plate 1, a silo 2, a guide plate 4, a crushing box 5 and a wet magnetic separation mechanism. The silo 2 is located on one side of the upper end of the sorting plate 1. The bottom of the silo 2 is connected to the inside of the sorting plate 1 through a feeding channel. A material lifting conveyor is installed on one side of the silo 2. The slag to be processed is introduced into the silo 2 through the material lifting conveyor, and the slag is transported to the sorting plate 1 through the conveying channel.

[0033] See also Figure 3-Figure 5 , a screening area 101, a screening area 2 102 and a screening area 3 103 are distributed along the circumferential direction at the bottom of the sorting plate 1, and the sizes of the sieve holes of the screening area 101, the screening area 2 102 and the screening area 3 103 gradually increase. A straight discharge port 104 is also provided at the bottom of the sorting plate 1 between the screening area 101 and the screening area 3 103;

[0034] The sorting disc 1 is internally driven to rotate and drive a material-diverting assembly 3 for rotating and stirring the slag. The material-diverting assembly 3 includes a rotating sleeve 31 rotatably mounted on the axis of the sorting disc 1. The outer end wall of the rotating sleeve 31 is annularly distributed with a plurality of material-diverting plates 32 whose outer ends are movably fitted to the inner wall of the sorting disc 1. A slag pre-storage space is formed between two adjacent material-diverting plates 32. A top cover is provided at the upper end of the material-diverting assembly 3. A rotating motor for rotating and driving the rotating sleeve 31 is installed on the top cover. The material-diverting assembly 3 rotates in a counterclockwise direction.

[0035] During the slag sorting process, the slag is transported to the sorting disc 1 through the conveying channel. Since the material shifting assembly 3 is in a rotating state, the material transported to the conveying channel is continuously distributed to the slag pre-storage space without interruption. The amount of slag in a single filter slag pre-storage space is small. During the movement of the material shifting plate 32, the slag passes through the larger screening area 101, the screening area 2 102, and the screening area 3 103 in sequence, so that the slag is screened from small to large. Finally, the slag with the largest particle size falls from the straight discharge port 104 under the movement of the material shifting plate 32 before moving to the conveying channel, so that multi-stage screening is completed in one disc.

[0036] Screening area 1 101, screening area 2 102, and screening area 3 103 are all fan-shaped areas with a certain screening area. As the slag is rotated and moved with the material shifting plate 32, slag of different particle sizes can be fully screened through each screening area. Compared with the existing method of screening slag materials step by step through a smaller leakage port during the inclined material dropping process, this solution improves the step-by-step screening effect of the slag.

[0037] See also Figure 3-Figure 4 as well as Figure 6 A guide plate 4 is fixedly installed at the bottom of the sorting plate 1, and a diversion component for diverting and conveying slag of different particle sizes after screening is also provided in the guide plate 4, wherein the diversion component includes a guide inclined plate 401 annularly distributed inside the guide plate 4 and corresponding to the positions of the screening area 1 101, the screening area 2 102, and the screening area 3 103;

[0038] Each group of material guide inclined plates 401 is provided with a pair, and the lower ends of the pair of material guide inclined plates 401 are inclined and arranged close to the chute 402. The inner bottom of the material guide plate 4 is provided with chutes 402 respectively located below the multiple groups of material guide inclined plates 401 and the straight discharge port 104 along the circumferential direction. The bottom end of each chute 402 is externally connected to a material guide pipe 403 arranged at the conveying end toward the crushing box 5.

[0039] See also Figure 7 , Figure 8 The crushing box 5 is provided with a plurality of crushing chambers connected with the conveying and diverting components along the front-back direction, a pair of mutually adapted crushing rollers 501 are rotatably installed in the plurality of crushing chambers, a plurality of guide pipes 403 are respectively penetrated into the plurality of crushing chambers one by one at one end away from the guide plate 4, and a guide table connected to the port of the guide pipe 403 is provided on one side of the top end of the crushing chamber, and slags of different particle sizes screened by the screening area 101, the screening area 2 102, and the screening area 3 103 fall into the corresponding guide inclined plates 401 in turn, and are collectively guided out to their respective chutes 402 by the guide inclined plates 401;

[0040] The internal structure of the chute 402 is inclined downward toward the side of the guide pipe 403. The position of the guide pipe 403 is set according to actual needs to achieve a one-to-one correspondence between multiple guide pipes 403 and multiple crushing chamber positions. There is no need to set a guide inclined plate 401 at the chute 402 located below the straight discharge port 104. The upper and lower straight discharge ports 104 and chute 402 correspond to each other, and the slag with the largest particle size can be discharged directly. Multiple guide pipes 403 can synchronously transport slag of different particle sizes to multiple crushing chambers of the crushing box 5 one by one.

[0041] The size of the crushing chamber can be selected to correspond to slag of different particle sizes, that is, the inner length of the crushing chamber can be appropriately lengthened for a larger slag particle size. The shafts of the multiple groups of crushing rollers 501 arranged front and back penetrate the crushing chamber and are connected to each other, and are synchronously driven by a driving motor fixedly installed at the end of the crushing box 5. In order to synchronize the uniformity of the crushing effect of slag of different particle sizes, the crushing effect is optimized by changing the blade shape and blade arrangement of the crushing roller 501.

[0042] Embodiment 2: Based on Embodiment 1, this embodiment adds a wet magnetic separation mechanism for magnetically screening the crushed slag behind the crushing box 5, as follows:

[0043] See also Fig. 9 , Fig.10 The wet magnetic separation mechanism includes a magnetic separation frame 6 and a magnetic separation roller 7 which is rotationally driven and installed on the magnetic separation frame 6. A power motor for rotating the magnetic separation roller 7 counterclockwise is installed at the end of the magnetic separation frame 6. A plurality of partitioning components which are fixedly installed on the magnetic separation frame 6 are movably distributed at intervals on the magnetic separation roller 7. The partitioning components divide the horizontal section of the magnetic separation roller 7 into a plurality of magnetic separation zones which correspond to the positions of a plurality of crushing chambers one by one. The bottom of each crushing chamber is connected to one side of the upper end of the magnetic separation zone through a guide plate 502 which is tilted downward;

[0044] A mounting plate 11 is also installed at the upper end of the magnetic separation frame 6, and a spray pipe 12 and an injection pipe 13 are respectively provided on the left and right sides of the mounting plate 11 and are located on both sides above the magnetic separation area. Each magnetic separation area is allocated with multiple spray pipes 12 and injection pipes 13. The multiple spray pipes 12 and the multiple injection pipes 13 in the same front and rear directions are respectively connected to external infusion pipes for supplying liquid to the spray pipes 12 and the injection pipes 13, and control valves are added to the ends of different infusion pipes to facilitate the adjustment of the downward injection force of the spray pipes 12 and the injection pipes 13.

[0045] Compared with the traditional single magnetic separation roller 7, the present solution adds a separation component on the magnetic separation roller 7, and the separation component includes a separation fan 8 movably sleeved on the magnetic separation roller 7 and fixed on the magnetic separation frame 6, and an upper partition plate 9 movably fitted to the middle part of the top of the magnetic separation roller 7 is fixed between the upper ends of two adjacent separation fans 8, the upper end of the upper partition plate 9 is connected to the bottom end of the mounting plate 11, and the lower end of the upper partition plate 9 is movably fitted to the outer end wall of the magnetic separation roller 7;

[0046] See also Fig.11 The magnetic separation zone is an outer ring space formed by two adjacent partitioning fans 8 and the outer wall of the magnetic separation roller 7. The spray pipe 12 is arranged on one side of the upper end of the magnetic separation space, and the injection pipe 13 is arranged on the other side of the upper end of the magnetic separation space. The slag guided downward from the guide plate 502 is sprayed with a liquid medium, and the slag mixed with the aqueous solution enters the concentrated magnetic separation gap together, and the magnetic substance and the non-magnetic substance are separated in the liquid medium. After the magnetic substance adheres to the magnetic separation roller 7 and rotates to the other side with the magnetic separation roller 7, the magnetic metal attached to the magnetic separation roller 7 is washed downward by the injection pipe 13, and the magnetic substance and the non-magnetic substance are efficiently separated in the liquid medium. The slag is subjected to zoned magnetic screening in multiple magnetic separation zones, and the magnetic separation effect of the metal material in the slag is effectively improved.

[0047] Each magnetic separation zone is provided with a focusing ring 10 which is coaxially arranged with the magnetic separation roller 7 and fixed between two adjacent dividing fans 8. The upper end of the focusing ring 10 is connected to the lower end of the guide plate 502, and the lower end of the focusing ring 10 extends to the lower edge of the magnetic separation roller 7 without exceeding the bottom of the magnetic separation roller 7. A focusing magnetic separation gap is formed between the focusing ring 10 and the outer wall of the magnetic separation roller 7, which enlarges the contact area between the slag discharged downward and the outer end wall of the magnetic separation roller 7, thereby effectively improving the wet magnetic separation effect.

[0048] A lower partition is fixed between the lower ends of two adjacent partition fans 8, and drainage plates 14 that are inclined outward and extend downward are fixed on both sides of the upper end of the lower partition. Drainage pools 15 are arranged on the left and right sides of the lower end of the magnetic separation frame 6. The drainage pool 15 is provided with a plurality of drainage grooves that are connected to the outer ends of the drainage plates 14. The drainage grooves are externally connected to drainage pipes. The drainage plates 14 and the drainage pools 15 are used in conjunction with each other to divert and discharge magnetic substances and other impurity slags from both sides of the magnetic separation frame 6 to facilitate subsequent processing operations such as filter pressing.

[0049] In summary, the present invention is to provide a sorting plate 1 with a plurality of screening areas with different aperture sizes, and a material-dispensing assembly 3 is provided in the sorting plate 1. After the slag is transported to the sorting plate 1, the slag is continuously distributed to the inner side of the material-dispensing assembly 3, and under the rotation and dispensing of the material-dispensing assembly 3, the slag of different particle sizes can be fully screened from front to back through the various screening areas, so that the slag can be screened step by step with different particle sizes after the slag runs for nearly a week, thereby improving the screening effect, and then the screened and graded slag is introduced into the crushing box 5 one by one for zone crushing, and the crushed slag is then introduced into the multiple magnetic separation areas of the wet magnetic separation mechanism one by one by the guide plate 502 for magnetic separation;

[0050] A focusing ring 10 is added in each magnetic separation zone to form a focusing magnetic separation gap between the focusing ring 10 and the outer wall of the magnetic separation roller 7, thereby expanding the contact area between the slag discharged downward and the outer end wall of the magnetic separation roller 7. After the non-magnetic slag moves to the lower end of the focusing ring 10 with the magnetic separation roller 7, it falls directly, while the magnetic material attached to the magnetic separation roller 7 is rotated to the other side with the magnetic separation roller 7, and the magnetic metal attached to the magnetic separation roller 7 is washed downward by the injection pipe 13, thereby completing the efficient separation of magnetic and non-magnetic materials in the liquid medium, and effectively improving the magnetic separation effect on the metal materials in the slag.

[0051] The above are only preferred specific implementation modes of the present invention; however, the protection scope of the present invention is not limited thereto; any technician familiar with the technical field within the technical scope disclosed by the present invention; any equivalent replacement or change based on the technical solution and improved concept of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A waste incineration slag environmental protection treatment equipment, comprising a sorting plate (1), a silo (2), a material guide plate (4), a crushing box (5) and a wet magnetic separation mechanism, characterized in that: The bottom of the sorting plate (1) is provided with a screening area 1 (101), a screening area 2 (102), a screening area 3 (103) and a straight discharge port (104) distributed along the circumferential direction; a material shifting assembly (3) is installed in the sorting plate (1) for rotational driving; a material guide plate (4) is fixedly installed at the bottom of the sorting plate (1); a diversion assembly for diverting and transporting slag of different particle sizes after screening is also provided in the material guide plate (4); The crushing box (5) is provided with a plurality of crushing chambers connected to the conveying and diverting components, and a pair of crushing rollers (501) adapted to each other are rotatably installed in each of the plurality of crushing chambers. The wet magnetic separation mechanism comprises a magnetic separation frame (6) and a magnetic separation roller (7) rotatably installed on the magnetic separation frame (6). A plurality of partitioning components fixedly installed on the magnetic separation frame (6) are movably distributed at intervals on the magnetic separation roller (7). The partitioning components divide the horizontal section of the magnetic separation roller (7) into a plurality of magnetic separation zones corresponding to the positions of the crushing chambers. A guide plate (502) is provided at the bottom of each crushing chamber and extends obliquely downward to one side above the magnetic separation zone. A plurality of spray pipes (12) and injection pipes (13) are also installed at the upper end of the magnetic separation frame (6) and are respectively distributed on both sides above the magnetic separation zone.

2. The environmental protection treatment equipment for waste incineration slag according to claim 1 is characterized by: The material shifting assembly (3) comprises a rotating sleeve (31) rotatably mounted on the axial center position of the sorting disk (1), and a plurality of material shifting plates (32) whose outer ends are movably fitted to the inner wall of the sorting disk (1) are annularly distributed on the outer end wall of the rotating sleeve (31), and a slag pre-storage space is formed between two adjacent material shifting plates (32).

3. The environmental protection treatment equipment for waste incineration slag according to claim 1 is characterized by: The flow diversion component comprises a plurality of groups of material guide inclined plates (401) which are annularly distributed inside the material guide plate (4) and correspond one to one with the positions of the screening area 1 (101), the screening area 2 (102) and the screening area 3 (103); the bottom of the material guide plate (4) is provided with chutes (402) respectively located below the plurality of groups of material guide inclined plates (401) and the straight discharge port (104) along the circumferential direction; the bottom end of each chute (402) is externally connected to a material guide pipe (403) which is arranged at a conveying end toward a side of the crushing box (5).

4. The environmental protection treatment equipment for waste incineration slag according to claim 3 is characterized by: Each group of the material guiding inclined plates (401) is provided with a pair, and the lower ends of the pair of material guiding inclined plates (401) are arranged to be inclined and close to the chute (402).

5. The environmental protection treatment equipment for waste incineration slag according to claim 4 is characterized by: The ends of the plurality of material guide tubes (403) away from the material guide plate (4) respectively penetrate into the plurality of pulverizing chambers one by one, and a material guide platform corresponding to the port of the material guide tube (403) is provided on one side of the top end of the pulverizing chamber.

6. The environmental protection treatment equipment for waste incineration slag according to claim 1 is characterized by: The separation component comprises a separation fan (8) which is movably sleeved on the magnetic separation roller (7) and fixed on the magnetic separation frame (6); an upper partition plate (9) which is movably fitted to the middle part of the top end of the magnetic separation roller (7) is fixed between the upper ends of two adjacent separation fans (8); the upper end of the upper partition plate (9) is connected to the bottom end of the mounting plate (11); the lower end of the upper partition plate (9) is movably fitted to the outer end wall of the magnetic separation roller (7); and the magnetic separation zone is an outer ring space formed by the two adjacent separation fans (8) and the outer wall of the magnetic separation roller (7).

7. The environmental protection treatment equipment for waste incineration slag according to claim 6 is characterized by: A lower partition is fixed between the lower ends of two adjacent partition fans (8), and drainage plates (14) are fixed on both sides of the upper ends of the lower partition, which are inclined outward and extend downward. Drainage pools (15) are arranged on the left and right sides of the lower end of the magnetic separation frame (6), and a plurality of drainage grooves connected to the outer ends of the drainage plates (14) are opened on the drainage pool (15), and the drainage grooves are connected to drainage pipes.

8. The environmental protection treatment equipment for waste incineration slag according to claim 7 is characterized by: Each of the magnetic separation zones is provided with a focusing ring (10) which is coaxially arranged with the magnetic separation roller (7) and fixed between two adjacent separation fans (8); the upper end of the focusing ring (10) is connected to the lower end of the guide plate (502); the lower end of the focusing ring (10) extends to the lower edge of the magnetic separation roller (7) and does not exceed the bottom end of the magnetic separation roller (7).

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