Screening equipment for slag recovery treatment

Abstract

The utility model belongs to the technical field of slag, and particularly relates to screening equipment for slag recovery treatment, which comprises a screening box. The top of the screening box communicates with a feeding port. One side wall of the screening box communicates with a pair of discharging openings. A pair of first inner grooves is formed in the side wall of the inner side of the screening box. The inner side wall of each first inner groove is fixedly connected with a plurality of sets of reset springs. Screens are arranged on the inner sides of the first inner grooves. The reset spring is connected with the screen mesh; in the working process, when the screen vibrates up and down to screen slag, metal products contained in the slag fall onto the surfaces of the pair of magnet plates through the screen and are attracted, the effect that the slag and the metal products are screened together can be achieved, and therefore the phenomenon that when the screen is used for screening the slag, the metal products cannot be separated from the slag is reduced. And the situation that the slag and the metal products are not easy to screen together, so that the metal products contained in the slag need to be separately screened after the slag is screened is avoided, and the labor force of workers is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of slag, in particular to a screening device for slag recovery and treatment. Background Technique

[0002] The screening device for slag recovery and treatment is a device that can screen slag. By screening, grading, separating and other treatments on the slag, slag materials with different particle sizes can be obtained, which can meet the application requirements of different fields.

[0003] In the current existing technology, the screening device for slag recovery and treatment mainly consists of components such as a screening box, a screen mesh, a feeding port, a discharging port, etc. The slag is added into the interior of the screening box, and the useful substances and useless substances in the slag can be separated through the screen mesh, which is convenient for the recycling and utilization of resources.

[0004] In the existing screening device for slag recovery and treatment, during operation, because the slag contains a large number of metal products, when the screen mesh screens the slag, it is not easy to screen the slag and the metal products together, resulting in the situation that after the slag screening is completed, it is necessary to separately screen the metal products contained in the slag, thus increasing the labor force of the staff; Therefore, a screening device for slag recovery and treatment is proposed for the above problems. Content of the Utility Model

[0005] In order to make up for the deficiencies of the existing technology and solve at least one technical problem proposed in the background technique, the utility model proposes a screening device for slag recovery and treatment.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows: A screening device for slag recovery and treatment according to the utility model includes a screening box; a feeding port is communicated with the top of the screening box; a pair of discharging ports are communicated with one side wall of the screening box; a pair of first inner grooves are opened on the inner side wall of the screening box; a plurality of groups of return springs are fixedly connected to the inner side walls of the first inner grooves; screens are arranged on the inner sides of the first inner grooves; the return springs are connected with the screens; a first motor is fixedly connected to one side wall of the screening box; a rotating shaft is rotatably connected to the inner side wall of the screening box; the output end of the first motor is connected with the rotating shaft; a plurality of groups of first T-shaped blocks are fixedly connected to the outer side wall of the rotating shaft; second T-shaped blocks are fixedly connected to the mutually approaching side walls of the screens; a pair of magnet plates are fixedly connected to the inner side wall of the screening box; a pair of sliding grooves are opened on the inner side wall of the screening box; sleeve columns are fixedly connected to the inner side walls of the sliding grooves; lead screws are rotatably connected to the inner sides of the sleeve columns; a pair of anti-slip rotating wheels are rotatably connected to one side wall of the screening box; one end of the anti-slip rotating wheel is connected with the lead screw; sliders are slidably connected to the inner sides of the sliding grooves; the sliders are in threaded connection with the lead screws; scraping plates are fixedly connected to the mutually approaching side walls of the sliders; the bottom ends of the scraping plates are mutually attached to the top of the magnet plate.

[0007] Preferably, a fixed box is fixedly connected to one side wall of the screening box; a second motor is fixedly connected to the side wall of the fixed box away from the screening box; a first gear is rotatably connected inside the fixed box; a first crushing roller is rotatably connected inside the screening box; one end of the first crushing roller is connected to the first gear; a second gear is rotatably connected inside the fixed box; the first gear meshes with the second gear; a second crushing roller is rotatably connected inside the screening box; one end of the second crushing roller is connected to the second gear.

[0008] Preferably, a third gear is rotatably connected inside the fixed box; the third gear meshes with the second gear; an installation block is fixedly connected to the inner side wall of the third gear; a connecting rod is fixedly connected to one end of the installation block close to the first crushing roller; a plurality of dust exhaust fan blades are fixedly connected to the outer side wall of the connecting rod; a dust exhaust pipe is fixedly connected to one side wall of the fixed box; one end of the dust exhaust pipe is in mutual fit with the surface of the third gear.

[0009] Preferably, a dust collection box is threadedly connected to the outer side wall of the dust exhaust pipe; a box door is rotatably connected to the side wall of the dust collection box away from the fixed box; a handle is fixedly connected to one side wall of the box door.

[0010] Preferably, a mounting plate is fixedly connected to one side wall of the screening box; a pair of electric push rods are fixedly connected to the top of the mounting plate; support plates are fixedly connected to the tops of the electric push rods.

[0011] Preferably, a second inner groove is formed on the side wall of the slider away from the scraping plate; a pair of fitting rotating columns are rotatably connected inside the second inner groove; the outer side wall of the fitting rotating column is in mutual fit with the inner side wall of the sliding groove.

[0012] Preferably, a baffle is rotatably connected to one side wall of the screening box; a handle is formed on one side wall of the baffle.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. For a screening device for slag recovery and treatment according to the present utility model, when the first motor is started, it drives the rotating shaft to drive a plurality of first T-shaped blocks to rotate. During the rotation of the first T-shaped blocks, through the mutual cooperation among the return spring, the sieve mesh and the second T-shaped blocks, a pair of sieve meshes can be pushed to vibrate up and down inside the first inner groove back and forth, so as to achieve the effect of screening slag with different particle sizes; when the sieve mesh vibrates up and down to screen the slag, the metal products contained in the slag will fall onto the surfaces of a pair of magnet plates and be attracted by them, thus achieving the effect of screening the slag and the metal products together, thereby reducing the situation that when the sieve mesh screens the slag, it is not easy to screen the slag and the metal products together, resulting in the need to separately screen the metal products contained in the slag after the slag screening is completed, and further reducing the labor of the staff; since the lead screw and the slider are in threaded connection, and the lead screw is connected with the anti-slip rotating wheel, rotating the anti-slip rotating wheel makes the slider move inside the chute. During the movement of the slider, the scraper follows the movement. During the movement of the scraper, the metal products attracted on the surface of the magnet plate can be pushed to one end of the magnet plate, so as to achieve the effect of facilitating the staff to clean and collect the metal products on the surface of the magnet plate.

[0015] 2. For a screening device for slag recovery and treatment according to the present utility model, when the second motor is started, it drives the first gear to rotate. Since the first gear meshes with the second gear, and the first crushing roller and the second crushing roller are respectively connected with the first gear and the second gear; during the rotation of the first gear, it drives the first crushing roller, the second gear and the second crushing roller to rotate together. During the rotation of the first crushing roller and the second crushing roller, the effect of crushing larger pieces of slag can be achieved, thereby reducing the situation that when larger pieces of slag directly perform screening work on the surface of the sieve mesh, it is easy to cause more serious wear on the surface of the sieve mesh, and further improving the working life of the sieve mesh. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a three-dimensional view of the screening box in the present utility model;

[0018] Figure 2 It is a three-dimensional view of the first crushing roller in the present utility model;

[0019] Figure 3 It is Figure 2 The enlarged view of part A;

[0020] Figure 4 For Figure 2 the enlarged view of part B of

[0021] Figure 5 This is the three-dimensional view of the magnet plate in the present utility model.

[0022] In the figure: 1, screening box; 11, feed inlet; 12, discharge port; 13, first inner groove; 14, return spring; 15, screen; 16, first motor; 17, rotating shaft; 18, first T-shaped block; 19, second T-shaped block; 110, magnet plate; 111, sliding groove; 112, sleeve column; 113, lead screw; 114, anti-slip runner; 115, slider; 116, scraper; 2, fixed box; 21, second motor; 22, first gear; 23, first crushing roller; 24, second gear; 25, second crushing roller; 3, third gear; 31, mounting block; 32, connecting rod; 33, dust exhaust fan blade; 34, dust exhaust pipe; 4, dust collection box; 41, box door; 42, handle; 5, mounting plate; 51, electric push rod; 52, support plate; 6, second inner groove; 61, fitting rotating column; 7, baffle; 71, handle. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Such as Figure 1 , Figure 2 , Figure 3 , Figure 4 And Figure 5As shown in the figure, a screening device for slag recycling and treatment includes a screening box 1; a feed inlet 11 is connected to the top of the screening box 1; a pair of discharge ports 12 are connected to one side wall of the screening box 1; a pair of first inner grooves 13 are opened on the inner side wall of the screening box 1; a plurality of sets of return springs 14 are fixedly connected to the inner side walls of the first inner grooves 13; a screen 15 is provided inside each of the first inner grooves 13; the return springs 14 are connected to the screen 15; a first motor 16 is fixedly connected to one side wall of the screening box 1; a rotating shaft 17 is rotatably connected to the inner side wall of the screening box 1; the output end of the first motor 16 is connected to the rotating shaft 17; a plurality of sets of first T-shaped blocks 18 are fixedly connected to the outer side wall of the rotating shaft 17; second T-shaped blocks 19 are fixedly connected to the mutually approaching side walls of the screen 15; a pair of magnet plates 110 are fixedly connected to the inner side wall of the screening box 1; a pair of sliding grooves 111 are opened on the inner side wall of the screening box 1; a sleeve column 112 is fixedly connected to the inner side wall of each of the sliding grooves 111; a lead screw 113 is rotatably connected to the inside of each of the sleeve columns 112; a pair of anti-slip rotating wheels 114 are rotatably connected to one side wall of the screening box 1; one end of the anti-slip rotating wheel 114 is connected to the lead screw 113; a slider 115 is slidably connected to the inside of each of the sliding grooves 111; the slider 115 is threadedly connected to the lead screw 113; a scraper 116 is fixedly connected to the mutually approaching side walls of the slider 115; the bottom ends of the scrapers 116 are mutually attached to the top of the magnet plate 110; During operation: Add slag into the inside of the screening box 1 through the feed inlet 11. When the slag falls on the surface of the screen 15, start the first motor 16 to drive the rotating shaft 17 to drive the plurality of sets of first T-shaped blocks 18 to rotate. During the rotation of the first T-shaped blocks 18, through the mutual cooperation among the return springs 14, the screen 15 and the second T-shaped blocks 19, a pair of screens 15 can be pushed to move back and forth and vibrate up and down inside the first inner grooves 13, so as to achieve the effect of screening slag with different particle sizes; When the screen 15 vibrates up and down to screen the slag, the metal products contained in the slag will fall onto the surface of the pair of magnet plates 110 and be attracted by them, so as to achieve the effect of screening the slag and the metal products together, thus reducing the situation that when the screen 15 screens the slag, it is not easy to screen the slag and the metal products together, resulting in the need to separately screen the metal products contained in the slag after the slag screening is completed, and further reducing the labor of the staff; Because the lead screw 113 is threadedly connected to the slider 115 and the lead screw 113 is connected to the anti-slip rotating wheel 114, rotate the anti-slip rotating wheel 114 to make the slider 115 move inside the sliding groove 111. During the movement of the slider 115, the scraper 116 moves along with it. During the movement of the scraper 116, the metal products attracted to the surface of the magnet plate 110 can be pushed to one end of the magnet plate 110, so as to achieve the effect of facilitating the staff to clean and collect the metal products on the surface of the magnet plate 110.

[0025] As Figure 1 with Figure 2As shown in the figure, a fixed box 2 is fixedly connected to one side wall of the screening box 1; a second motor 21 is fixedly connected to the side wall of the fixed box 2 away from the screening box 1; a first gear 22 is rotatably connected to the inner side of the fixed box 2; a first crushing roller 23 is rotatably connected to the inner side of the screening box 1; one end of the first crushing roller 23 is connected to the first gear 22; a second gear 24 is rotatably connected to the inner side of the fixed box 2; the first gear 22 meshes with the second gear 24; a second crushing roller 25 is rotatably connected to the inner side of the screening box 1; one end of the second crushing roller 25 is connected to the second gear 24; during operation: start the second motor 21 to drive the first gear 22 to rotate. Since the first gear 22 meshes with the second gear 24, and the first crushing roller 23 and the second crushing roller 25 are respectively connected to the first gear 22 and the second gear 24; during the rotation of the first gear 22, the first crushing roller 23, the second gear 24 and the second crushing roller 25 are driven to rotate together. During the rotation of the first crushing roller 23 and the second crushing roller 25, the effect of crushing larger pieces of slag can be achieved, thereby reducing the situation that the surface of the screen 15 is easily worn severely when large pieces of slag are directly screened on the surface of the screen 15, and further improving the service life of the screen 15.

[0026] As Figure 1 , Figure 2 and Figure 5 shown in the figure, a third gear 3 is rotatably connected to the inner side of the fixed box 2; the third gear 3 meshes with the second gear 24; an installation block 31 is fixedly connected to the inner side wall of the third gear 3; a connecting rod 32 is fixedly connected to one end of the installation block 31 close to the first crushing roller 23; a plurality of dust exhaust fan blades 33 are fixedly connected to the outer side wall of the connecting rod 32; a dust exhaust pipe 34 is fixedly connected to one side wall of the fixed box 2; one end of the dust exhaust pipe 34 is in mutual fit with the surface of the third gear 3; during operation: when the slag inside the screening box 1 is screened and needs to discharge the dust inside the screening box 1 to the outside, since the third gear 3 meshes with the second gear 24, and the third gear 3, the installation block 31, the connecting rod 32 and the plurality of dust exhaust fan blades 33 are connected to each other, that is, during the rotation of the second gear 24, the third gear 3, the installation block 31, the connecting rod 32 and the plurality of dust exhaust fan blades 33 are driven to rotate together. During the rotation of the plurality of dust exhaust fan blades 33, a large amount of dust generated during the screening of the slag inside the screening box 1 can be discharged to the outside through the dust exhaust pipe 34, thereby reducing the situation that the surface of the screen 15 is easily blocked due to too much dust generated during the screening of the slag inside the screening box 1, and achieving the effect that the surface of the screen 15 is always kept unblocked, and further improving the screening efficiency of the slag.

[0027] As Figure 1As shown, a dust collection box 4 is threadedly connected to the outer side wall of the dust exhaust pipe 34; a box door 41 is rotatably connected to the side wall of the dust collection box 4 away from the fixed box 2; a handle 42 is fixedly connected to one side wall of the box door 41; during operation: since the dust exhaust pipe 34 and the dust collection box 4 are threadedly connected, rotate the dust collection box 4 to connect the dust collection box 4 with the dust exhaust pipe 34. At this time, during the operation of multiple groups of dust exhaust fan blades 33, the dust inside the screening box 1 can be directly discharged into the dust collection box 4 through the dust exhaust pipe 34, thereby reducing the situation that when the dust inside the screening box 1 is discharged to the outside through the dust exhaust pipe 34, the dust floats randomly outside the screening box 1, resulting in the staff inhaling the dust into the body, and thus improving the working environment of the staff; when it is necessary to clean the dust accumulated inside the dust collection box 4, pull the handle 42 to rotate the box door 41 outward to open. At this time, the box door 41 will no longer seal the dust collection box 4, thereby facilitating the staff to clean the dust inside the dust collection box 4 and improving the cleanliness inside the dust collection box 4.

[0028] As Figure 1 shown, an installation plate 5 is fixedly connected to one side wall of the screening box 1; a pair of electric push rods 51 are fixedly connected to the top of the installation plate 5; the tops of the electric push rods 51 are fixedly connected to a support plate 52; during operation: when the connection between the dust collection box 4 and the dust exhaust pipe 34 is completed, start the electric push rods 51 to push the support plate 52 upward. When the support plate 52 moves to fit with the bottom of the dust collection box 4, the effect of supporting the dust collection box 4 can be achieved, thereby improving the stability of the dust collection box 4 during operation.

[0029] As Figure 4 shown, a second inner groove 6 is opened on the side wall of the slider 115 away from the scraper 116; a pair of fitting rotating columns 61 are rotatably connected to the inner side of the second inner groove 6; the outer side wall of the fitting rotating column 61 is in mutual fit with the inner side wall of the sliding groove 111; during operation: during the process of the slider 115 moving back and forth inside the sliding groove 111, a pair of fitting rotating columns 61 rotate accordingly. The pair of fitting rotating columns 61 reduce the situation that the outer side wall of the slider 115 is in long-term moving friction with the inner side wall of the sliding groove 111, resulting in relatively serious wear on the surface of the slider 115, thereby improving the service life of the slider 115.

[0030] As Figure 1 shown, a baffle 7 is rotatably connected to one side wall of the screening box 1; a grip 71 is opened on one side wall of the baffle 7; during operation: when it is necessary to clean and collect the metal products accumulated on the surface of the magnet plate 110, at this time, pull the grip 71 to rotate the baffle 7 outward to open. At this time, the staff can clean and collect the metal products accumulated on the surface of the magnet plate 110, thereby improving the overall working efficiency when the staff cleans and collects the metal products accumulated on the surface of the magnet plate 110.

[0031] Working principle: The slag is added into the screening box 1 through the feeding port 11. When the slag falls on the surface of the screen 15, the first motor 16 is started to drive the rotating shaft 17 to drive a plurality of first T-shaped blocks 18 to rotate. During the rotation of the first T-shaped blocks 18, through the mutual cooperation among the return spring 14, the screen 15 and the second T-shaped blocks 19, a pair of screens 15 can be pushed to move up and down back and forth inside the first inner groove 13, so as to achieve the effect of screening slag with different particle sizes; when the screen 15 moves up and down to screen the slag, the metal products contained in the slag will fall onto the surface of a pair of magnet plates 110 and be attracted by them, so as to achieve the effect of screening the slag and the metal products together, thus reducing the situation that when the screen 15 screens the slag, it is not easy to screen the slag and the metal products together, resulting in the need to separately screen the metal products contained in the slag after the slag screening is completed, and further reducing the labor of the staff; since the lead screw 113 is threadedly connected to the slider 115, and the lead screw 113 is connected to the anti-slip rotating wheel 114, rotating the anti-slip rotating wheel 114 makes the slider 115 move inside the chute 111. During the movement of the slider 115, the scraper 116 moves along with it. During the movement of the scraper 116, the metal products attracted on the surface of the magnet plate 110 can be pushed to one end of the magnet plate 110, so as to achieve the effect of facilitating the staff to clean and collect the metal products on the surface of the magnet plate 110; the second motor 21 is started to drive the first gear 22 to rotate. Since the first gear 22 meshes with the second gear 24, and the first crushing roller 23 and the second crushing roller 25 are respectively connected to the first gear 22 and the second gear 24; during the rotation of the first gear 22, the first crushing roller 23, the second gear 24 and the second crushing roller 25 are driven to rotate together. During the rotation of the first crushing roller 23 and the second crushing roller 25, the effect of crushing larger pieces of slag can be achieved, thus reducing the situation that when larger pieces of slag are directly screened on the surface of the screen 15, the surface of the screen 15 is easily worn more seriously, and further improving the working life of the screen 15; when the screening of the slag inside the screening box 1 is completed and the dust inside the screening box 1 needs to be discharged to the outside, since the third gear 3 meshes with the second gear 24, and the third gear 3, the mounting block 31, the connecting rod 32 and a plurality of dust exhaust fan blades 33 are connected to each other, that is, during the rotation of the second gear 24, the third gear 3, the mounting block 31, the connecting rod 32 and a plurality of dust exhaust fan blades 33 are driven to rotate together. During the rotation of a plurality of dust exhaust fan blades 33, a large amount of dust generated during the screening of the slag inside the screening box 1 can be discharged to the outside through the dust exhaust pipe 34, thus reducing the situation that due to the large amount of dust generated during the screening of the slag inside the screening box 1, the surface of the screen 15 is easily blocked, and achieving the effect that the surface of the screen 15 is always kept unobstructed, and further improving the screening efficiency of the slag;Since the dust exhaust pipe 34 is threadedly connected to the dust collection box 4, rotate the dust collection box 4 to connect the dust collection box 4 to the dust exhaust pipe 34. At this time, during the operation of multiple groups of dust exhaust fan blades 33, the dust inside the screening box 1 can be directly discharged into the dust collection box 4 through the dust exhaust pipe 34, thereby reducing the situation where dust floats randomly outside the screening box 1 when the dust inside the screening box 1 is discharged to the outside through the dust exhaust pipe 34, resulting in the staff inhaling the dust into their bodies, and thus improving the working environment of the staff; when it is necessary to clean the dust accumulated inside the dust collection box 4, pull the handle 42 to rotate the box door 41 outward to open. At this time, the box door 41 will no longer seal the dust collection box 4, which is convenient for the staff to clean the dust inside the dust collection box 4 and improve the cleanliness inside the dust collection box 4; after the dust collection box 4 is connected to the dust exhaust pipe 34, start the electric push rod 51 to push the support plate 52 upward. When the support plate 52 moves to fit with the bottom of the dust collection box 4, the effect of supporting the dust collection box 4 can be achieved, thereby improving the stability of the dust collection box 4 during operation; during the process of the slider 115 moving back and forth inside the chute 111, a pair of fitting rotating columns 61 rotate accordingly. The pair of fitting rotating columns 61 reduces the situation where the outer wall of the slider 115 rubs against the inner wall of the chute 111 for a long time during movement, resulting in relatively serious wear on the surface of the slider 115, thereby improving the service life of the slider 115; when it is necessary to clean and collect the metal products accumulated on the surface of the magnet plate 110, pull the grip 71 at this time to rotate the baffle 7 outward to open. At this time, the staff can clean and collect the metal products accumulated on the surface of the magnet plate 110, thereby improving the overall work efficiency when the staff cleans and collects the metal products accumulated on the surface of the magnet plate 110.;

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A screening device for slag recovery and treatment, comprising a screening box (1); characterized in that: The top of the screening box (1) is connected to a feed port (11); a side wall of the screening box (1) is connected to a pair of discharge ports (12); a pair of first inner grooves (13) are formed on the inner side wall of the screening box (1); a plurality of return springs (14) are fixedly connected to the inner side walls of the first inner grooves (13); a screen (15) is provided on the inner side of the first inner grooves (13); the return springs (14) and the screen (15) are connected to each other; a first motor (16) is fixedly connected to the one side wall of the screening box (1); a rotating shaft (17) is rotatably connected to the inner side wall of the screening box (1); an output end of the first motor (16) and the rotating shaft (17) are connected to each other; a plurality of first T-shaped blocks (18) are fixedly connected to the outer side wall of the rotating shaft (17); a second T-shaped block (18) is fixedly connected to the side wall of the screen (15) adjacent to each other. Block (19); a pair of magnet plates (110) are fixedly connected to the inner side wall of the screening box (1); a pair of slide grooves (111) are opened on the inner side wall of the screening box (1); the inner side wall of the slide groove (111) is fixedly connected to a sleeve column (112); the inner side of the sleeve column (112) is rotatably connected to a screw rod (113); a pair of anti-skid wheels (114) are rotatably connected to one side wall of the screening box (1); one end of the anti-skid wheel (114) is mutually connected to the screw rod (113); a slider (115) is slidably connected to the inner side of the slide groove (111); the slider (115) and the screw rod (113) are threadedly connected; a scraper (116) is fixedly connected to the side wall of the slider (115) close to each other; the bottom end of the scraper (116) is mutually in contact with the top of the magnet plate (110).

2. A screening device for slag recovery according to claim 1, characterized in that: A fixed box (2) is fixedly connected to a side wall of one side of the screening box (1); a second motor (21) is fixedly connected to a side wall of the fixed box (2) away from the screening box (1); a first gear (22) is rotatably connected to the inside of the fixed box (2); a first crushing roller (23) is rotatably connected to the inside of the screening box (1); one end of the first crushing roller (23) is interconnected with the first gear (22); a second gear (24) is rotatably connected to the inside of the fixed box (2); the first gear (22) and the second gear (24) are meshed with each other; a second crushing roller (25) is rotatably connected to the inside of the screening box (1); one end of the second crushing roller (25) is interconnected with the second gear (24).

3. The slag recovery and processing screening equipment according to claim 2, characterized in that: A third gear (3) is rotatably connected to the inner side of the fixed box (2); the third gear (3) meshes with the second gear (24); a mounting block (31) is fixedly connected to the inner side wall of the third gear (3); a connecting rod (32) is fixedly connected to one end of the mounting block (31) close to the first crushing roller (23); a plurality of groups of dust exhaust blades (33) are fixedly connected to the outer side wall of the connecting rod (32); a dust exhaust pipe (34) is fixedly connected to the side wall of one side of the fixed box (2); one end of the dust exhaust pipe (34) is in contact with the surface of the third gear (3).

4. The slag recovery and processing screening equipment according to claim 3, characterized in that: The outer wall of the dust exhaust pipe (34) is threadedly connected to a dust collecting box (4); a side wall of the dust collecting box (4) away from the fixed box (2) is rotatably connected to a box door (41); and a handle (42) is fixedly connected to one side wall of the box door (41).

5. The slag recovery and processing screening equipment according to claim 1, characterized in that: A mounting plate (5) is fixedly connected to a side wall of one side of the screening box (1); a pair of electric push rods (51) are fixedly connected to the top of the mounting plate (5); and a support plate (52) is fixedly connected to the top of each of the electric push rods (51).

6. The screening device for slag recovery according to claim 1, characterized in that: A second inner groove (6) is formed on the side wall of the sliding block (115) away from the scraper plate (116); a pair of fitting rotating columns (61) are rotatably connected inside the second inner groove (6); and the outer side walls of the fitting rotating columns (61) fit in contact with the inner side walls of the sliding groove (111).

7. The screening device for slag recovery according to claim 1, characterized in that: A baffle (7) is rotatably connected to a side wall of one side of the screening box (1); a handle (71) is provided on a side wall of one side of the baffle (7).

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