Efficient waste steel sorting device

Abstract

The utility model belongs to the technical field of scrap steel sorting, and discloses an efficient scrap steel sorting device which comprises a bottom plate, a supporting table is fixedly mounted on the rear side of the top of the bottom plate, a sliding block is slidably mounted on the top of the supporting table, a connecting plate is fixedly mounted on the top of the sliding block, and a driven gear is rotationally connected to the front side of the connecting plate through a bearing; when the separation barrel rotates to filter and sort scrap steel in the separation barrel, filtering holes are inevitably blocked by part of the scrap steel, at the moment, due to the existence of a dredging plate, in the rotation process of the separation barrel, transverse rods connected with the inner sides of side plates on the two sides of the periphery of the separation barrel through reset springs and rotating wheels at the tops of the transverse rods can move in the circumferential direction along with the separation barrel; and when the rotating wheel rotates to the uppermost part, the rotating wheel is pressed against the arc-shaped pressing plate and then is forced to move towards the direction of the separation barrel, at the moment, the cross rod is extruded by the rotating wheel to force the dredging plate to be inserted into the filter hole, and the waste steel clamped in the filter hole is extruded and falls into the separation barrel, so that blockage is dredged, and the working capacity of the separation barrel is recovered.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of scrap steel sorting, and particularly relates to a high-efficiency scrap steel sorting device. BACKGROUND

[0002] Scrap steel refers to steel waste (such as cut edges and cut heads) that does not become a product in the production process of a steel plant and steel materials in equipment and components that are scrapped after use. In the processing process of a factory, scrap steel is inevitably produced. In order to reduce production costs, scrap steel needs to be recycled and treated. In the recycling and treatment of scrap steel, sorting operation needs to be performed on the scrap steel to classify scrap steel of different sizes, so that scrap steel of different sizes can be conveniently smelted and treated.

[0003] For example, patent number CN218223450U discloses a scrap steel sorting device, which comprises a sorting device, a filter plate device is arranged in the sorting device, the sorting device comprises a device plate, a base box is arranged on the outer surface of the upper side of the device plate, a supporting rod is arranged on the inner bottom wall of the upper side of the base box, a movable plate is arranged at one end of the supporting rod, a connecting plate is arranged on the outer surface of the upper side of the movable plate, a device box is arranged on the outer surface of the upper side of the connecting plate, a storage box is arranged in the device box, a hydraulic machine is arranged on one side of the outer surface of the base box, and an inclined plate is arranged at one end of the hydraulic machine. The utility model discloses a hydraulic machine arranged in the sorting device, when the hydraulic machine is started, the inclined plate moves left and right, so that the movable plate moves up and down under the pushing of the inclined plate, so that the device box drives the filter plate device to shake, and the scrap steel on the outer surface of the upper side of the filter plate device is sorted.

[0004] During use of the device, it is found that the technology has the following problems. When the device sorts scrap steel, the following optimization can be performed. On the one hand, because the sizes of scrap steels are different and the shapes are irregular, the scrap steels are easily stuck in filter holes of a filter plate, causing blockage. On the other hand, a large amount of rust and dust is generated when the scrap steels are sorted, which will affect the health of workers if not treated. Therefore, in order to solve the problem, it is necessary to propose a high-efficiency scrap steel sorting device. Utility model content

[0005] The application aims to solve the above problems and provide a high-efficiency scrap steel sorting device.

[0006] The technical scheme adopted by the application is as follows: an efficient scrap steel sorting device, comprising a bottom plate, a supporting table is fixedly installed on the top rear side of the bottom plate, a sliding block is slidingly installed on the top of the supporting table, an adapter plate is fixedly installed on the top of the sliding block, a driven gear is rotatably connected to the front side of the adapter plate through a bearing, a U-shaped frame is fixedly installed on the front end of the driven gear, a rack meshing with the driven gear is slidingly installed on the inner side of the adapter plate, two separation cylinders are rotatably installed on the two front ends of the U-shaped frame through bearings, a feeding port and a discharge port are respectively fixedly installed on the two ends of the separation cylinder, filter holes are arranged on the outer periphery of the separation cylinder in a circumferential distribution, and a first conveying belt and a second conveying belt are respectively fixedly installed on the front end of the supporting table.

[0007] A plurality of side plates are fixedly installed on the two sides of the outer wall of the separation cylinder in a circumferential distribution, a horizontal rod is slidingly installed on the inner side of the side plate, a plurality of dredging plates are fixedly installed on the side of the horizontal rod facing the separation cylinder, the dredging plates are arranged opposite to the filter holes, a rotating wheel is rotatably installed on the side of the horizontal rod away from the separation cylinder, and an arc-shaped pressing plate is fixedly installed on the top of the U-shaped frame directly above the separation cylinder.

[0008] A dust absorption plate covering the front side of the separation cylinder is fixedly installed on the top of the first conveying belt through a rod, a gas pump is fixedly installed on the left side of the first conveying belt, a water tank is placed on the top left side of the bottom plate, and the suction end and the exhaust end of the gas pump are respectively threadedly connected to the dust absorption plate and the water tank through pipelines.

[0009] In a preferred embodiment, a limiting sliding groove matched with the sliding block is formed on the top of the supporting table, a lead screw is threadedly connected to the sliding block, and a first driving motor is fixedly connected to the end of the lead screw.

[0010] In a preferred embodiment, a vertical sliding groove matched with the rack is formed on the inner side of the adapter plate, a threaded rod is threadedly connected to the rack, and a second driving motor is fixedly connected to the end of the threaded rod.

[0011] In a preferred embodiment, a feeding pipe extending into the interior of the separation cylinder is insertedly installed in the middle of the feeding port, and the feeding pipe is fixedly connected to the supporting table through a connecting rod.

[0012] In a preferred embodiment, a gear ring is fixedly installed on the outer periphery of the feeding port, a driving gear is engaged with the rear side of the gear ring, and the rotating power of the driving gear is derived from a third driving motor fixedly installed on the left side of the U-shaped frame.

[0013] In a preferred embodiment, a limiting displacement groove matched with the horizontal rod is formed on the inner side of the side plate, and the two sliding end faces of the horizontal rod towards the separation cylinder are fixedly connected to the limiting displacement groove through return springs.

[0014] In a preferred embodiment, the inner circle of the dust absorption plate is provided with a plurality of suction holes, the inner bottom of the water tank is fixedly provided with a spray pipe connected with the exhaust pipe of the air pump, the outer periphery of the spray pipe is provided with a plurality of distributed dispersion holes, the top of the water tank is provided with a gauze filter screen, and the front wall of the water tank is fixedly provided with a water inlet and a sewage outlet respectively on the upper and lower sides and provided with sealing covers.

[0015] In summary, due to the adoption of the above technical scheme, the application has the following beneficial effects:

[0016] 1、In the application, when the scrap steel needs to be sorted by size, the scrap steel is first poured into the feeding pipe, and then the scrap steel is discharged into the inside of the separation cylinder through the bottom end of the feeding pipe. It should be noted that the amount of scrap steel poured in should not overflow the inner bottom of the inlet and outlet of the separation cylinder. After the scrap steel is poured in, the third driving motor is started to drive the driving gear to rotate the tooth ring. At this time, the tooth ring will drive the separation cylinder to rotate together, so that the scrap steel in the separation cylinder changes position continuously in rotation, so that the scrap steel smaller than the size of the filter hole is discharged from the filter hole and falls into the first conveyor belt for conveying. When the rotation of the separation cylinder is completed, the first driving motor is started to drive the screw to rotate, and the sliding block and all components on the connecting plate move to the right side. At this time, the left end of the separation cylinder is disconnected from the plug connection of the feeding pipe, and the separation cylinder is above the second conveyor belt. Then, the second driving motor is started to drive the threaded rod to rotate, so as to control the movement of the rack to engage the driven gear to rotate 90 degrees. At this time, the U-shaped frame drives the separation cylinder to rotate 90 degrees with the driven gear, so that the scrap steel larger than the size of the filter hole is discharged from the discharge port and falls into the second conveyor belt for conveying, so as to complete the sorting work of the scrap steel.

[0017] 2、In the application, when the separation cylinder rotates to filter and sort the scrap steel in the separation cylinder, the filter hole will inevitably be blocked by part of the scrap steel. At this time, due to the existence of the dredging plate, the top rotating wheel of the horizontal rod connected by the return spring on the both sides of the outer periphery of the separation cylinder will move circumferentially with the separation cylinder. When the rotating wheel rotates to the uppermost position, it will meet the abutment of the arc-shaped pressing plate, and will be forced to move in the direction of the separation cylinder. At this time, the horizontal rod is extruded by the rotating wheel and forces the dredging plate to move in the direction of the separation cylinder and insert into the filter hole, so as to extrude the scrap steel stuck in the filter hole and fall into the separation cylinder, so as to dredge and restore the working capacity of the separation cylinder.

[0018] 3、In this application, through the above design, a large amount of rust and dust will be generated when the separation cylinder rotates and sorts, at this time the air pump can be started to extract the rust and dust generated on the separation cylinder through the dust extraction plate, the rust and dust is discharged into the water tank through the pipeline, and is discharged through the spray pipe, the dispersion holes on the spray pipe will disperse the rust and dust into multiple small streams, thereby increasing the mixing and precipitation of the rust and dust with the water in the water tank, and the gas is discharged through the gauze filter, thereby effectively reducing the diffusion of the rust and dust and affecting the health of workers, when the work is completed, the pipeline at the air exhaust end of the air pump is rotated and unscrewed, the water tank is removed, and the sewage outlet is opened to pour the mixed sewage. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic view of the left side of the structure in front of the application;

[0020] Figure 2 It is a schematic view of the left side of the structure behind the application;

[0021] Figure 3 It is a schematic view of the structure of the separation cylinder in the application;

[0022] Figure 4 It is a schematic view of the internal structure of the water tank in the application.

[0023] Marked in the figure: 1-bottom plate, 2-supporting table, 3-sliding block, 4-threaded rod, 5-linking plate, 6-driven gear, 7-U-shaped frame, 8-rack, 9-threaded rod, 10-separation cylinder, 11-feeding port, 12-discharge port, 13-feeding pipe, 14-tooth ring, 15-driving gear, 16-filter hole, 17-side plate, 18-cross rod, 19-dredging plate, 20-rotating wheel, 21-arc-shaped pressing plate, 22-first conveyor belt, 23-second conveyor belt, 24-dust extraction plate, 25-air pump, 26-water tank, 27-water inlet, 28-spray pipe, 29-gauze filter, 30-sewage outlet. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the application more clear and obvious, the application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the application and not to limit the application.

[0025] REFERENCE Figure 1 , 23. The utility model provides a high -efficient scrap steel sorting device, including the bottom plate 1, the top rear side fixed mounting of bottom plate 1 has the support platform 2, the top sliding installation of support platform 2 has sliding block 3, the top of support platform 2 is equipped with the limiting sliding slot of being suitable for with sliding block 3, be connected with screw rod 4 on sliding block 3, the end of screw rod 4 is fixedly connected with no. 1 drive motor, the top fixed mounting of sliding block 3 has the interface board 5, the front side of interface board 5 is rotatably connected with driven gear 6 through bearing, the front end fixed mounting of driven gear 6 has U type frame 7, the inner side sliding installation of interface board 5 has the rack 8 of being engaged with driven gear 6, the inner side of interface board 5 is equipped with the vertical sliding slot of being suitable for with rack 8, be connected with threaded rod 9 on rack 8, the end of threaded rod 9 is fixedly connected with no. 2 drive motor, the both ends of separating cylinder 10 are fixedly installed with feeding port 11 and discharge port 12 respectively, the middle part of feeding port 11 is insertedly installed with the feeding tube 13 extending to the inside of separating cylinder 10, the feeding tube 13 is fixedly connected with support platform 2 through connecting rod, the outer periphery fixed mounting of feeding port 11 has gear ring 14, the rear side of gear ring 14 is engaged with driving gear 15, and the rotary power of driving gear 15 comes from the no. 3 drive motor fixedly installed on the left side of U type frame 7, and the outer periphery of separating cylinder 10 is equipped with the filter hole 16 of being distributed in the circumference, and the front end of support platform 2 is fixedly installed with no. 1 conveyor belt 22 and no. 2 conveyor belt 23 respectively.

[0026] Through the above design, when the scrap steel is sorted according to the size, the scrap steel is poured into the feeding tube 13 first, at this time, the scrap steel is discharged into the inside of the separating cylinder 10 through the bottom end of the feeding tube 13, it should be noted that the amount of the scrap steel poured in does not easily overflow the inner port bottom of the feeding port 11 and the discharge port 12 at both ends of the separating cylinder 10, after the scrap steel is poured in, the no. 3 drive motor is started to drive the driving gear 15 to rotate the gear ring 14, at this time, the gear ring 14 will drive the separating cylinder 10 to rotate together, so that the scrap steel in the separating cylinder 10 continuously changes position in rotation, so that the scrap steel smaller than the size of the filter hole 16 in the separating cylinder 10 is discharged in the filter hole 16 and falls into the no. 1 conveyor belt 22 to convey out, when the rotating work of the separating cylinder 10 is finished, the no. 1 drive motor is started to drive the screw rod 4 to rotate, and the sliding block 3 is moved to the right side together with all the components on the interface board 5, at this time, the left end of the separating cylinder 10 is separated from the insertion of the feeding tube 13, and the separating cylinder 10 will come to the right above the no. 2 conveyor belt 23, then the no. 2 drive motor is started to drive the threaded rod 9 to rotate, to control the rack 8 to move to engage the driven gear 6 to rotate 90 degrees, at this time, the U type frame 7 drives the separating cylinder 10 to also rotate 90 degrees with the driven gear 6, so that the scrap steel larger than the size of the filter hole 16 in the separating cylinder 10 is discharged from the discharge port 12 and falls into the no. 2 conveyor belt 23 to convey out, to complete the sorting work of the scrap steel.

[0027] Refer to Figure 1 , 2, 3, the outer wall of the separation cylinder 10 is fixedly installed with a plurality of circumferentially distributed side plates 17, the inner side of the side plate 17 is slidably installed with a horizontal rod 18, the inner side of the side plate 17 is provided with a limiting displacement slot matched with the horizontal rod 18, the two sliding end faces of the horizontal rod 18 are fixedly connected with the limiting displacement slot through the return spring on one side of the separation cylinder 10, a plurality of dredging plates 19 are fixedly installed on the side of the horizontal rod 18 facing the separation cylinder 10, the dredging plate 19 is arranged opposite to the filter hole 16, a rotating wheel 20 is rotatably installed on the side of the horizontal rod 18 away from the separation cylinder 10, and an arc-shaped pressing plate 21 is fixedly installed on the top of the U-shaped frame 7 located directly above the separation cylinder 10.

[0028] Through the above design, when the separation cylinder 10 rotates to filter and sort the scrap steel in the separation cylinder 10, the filter hole 16 will inevitably be blocked by part of the scrap steel. At this time, due to the existence of the dredging plate 19, in the process of rotating the separation cylinder 10, the horizontal rod 18 connected by the return spring in the inner side of the side plate 17 on both sides of the outer periphery of the separation cylinder 10, and the rotating wheel 20 at the top thereof will move circumferentially together with the separation cylinder 10. When the rotating wheel 20 rotates to the uppermost position, it will encounter the abutment of the arc-shaped pressing plate 21, and will be forced to move in the direction of the separation cylinder 10. At this time, the horizontal rod 18 is extruded by the rotating wheel 20, and the dredging plate 19 is forced to move in the direction of the separation cylinder 10 and inserted into the filter hole 16, so as to extrude the scrap steel clamped in the filter hole 16 and fall into the separation cylinder 10, so as to dredge the blockage and restore the working capacity of the separation cylinder 10.

[0029] Referring to Figure 1 , 2 , 4, the top of the first conveying belt 22 is fixedly installed with a dust collection plate 24 covering the front side of the separation cylinder 10 through a rod, the left side of the first conveying belt 22 is fixedly installed with an air pump 25, the top left side of the bottom plate 1 is placed with a water tank 26, the air suction end and the air exhaust end of the air pump 25 are respectively connected with the dust collection plate 24 and the water tank 26 through pipelines in a threaded manner, a plurality of suction holes are formed in the inner circle of the dust collection plate 24, a spray pipe 28 is fixedly installed on the inner bottom of the water tank 26 and connected with the pipeline of the air exhaust end of the air pump 25, a plurality of dispersion holes are formed in the outer periphery of the spray pipe 28, a gauze filter 29 is arranged on the top of the water tank 26, and a water inlet 27 and a sewage outlet 30 provided with sealing covers are respectively fixedly installed on the upper and lower sides of the front wall of the water tank 26.

[0030] Through the above design, when the separation cylinder 10 rotates and sorts, a large amount of rust and dust will be generated. At this time, the air pump 25 can be started to extract the rust and dust generated on the separation cylinder 10 through the dust extraction plate 24. The rust and dust is discharged into the water tank 26 through the pipeline, and is discharged through the spray pipe 28. The dispersion holes on the spray pipe 28 will disperse the rust and dust into multiple small streams, thereby increasing the mixing and precipitation of the rust and dust with the water in the water tank 26. The gas is discharged through the gauze filter 29, thereby effectively reducing the diffusion of the rust and dust and affecting the health of workers. When the work is completed, the pipeline at the exhaust end of the air pump 25 is rotated and screwed off, the water tank 26 is removed, and the sewage outlet 30 is opened to pour the mixed sewage.

[0031] The implementation principle of the embodiment of the application is:

[0032] Firstly, when it is necessary to sort the scrap steel according to the size, the scrap steel is poured into the feeding pipe 13. At this time, the scrap steel is discharged into the inside of the separation cylinder 10 through the bottom end of the feeding pipe 13. It should be noted that the amount of the poured scrap steel should not overflow the inner port bottom of the feeding port 11 and the discharge port 12 at both ends of the separation cylinder 10. After the scrap steel is poured, the third driving motor is started to drive the driving gear 15 to mesh with the gear ring 14 to rotate. At this time, the gear ring 14 drives the separation cylinder 10 to rotate, so that the scrap steel in the separation cylinder 10 continuously changes position in rotation, thereby enabling the scrap steel smaller than the size of the filter hole 16 to be discharged from the filter hole 16 and fall into the first conveying belt 22 to be conveyed out. When the rotation of the separation cylinder 10 is completed, the first driving motor is started to drive the screw rod 4 to rotate, so that the sliding block 3 and all components on the connecting plate 5 move to the right side. At this time, the left end of the separation cylinder 10 is separated from the insertion of the feeding pipe 13, and the separation cylinder 10 comes to the upper side of the second conveying belt 23. Then, the second driving motor is started to drive the threaded rod 9 to rotate, so as to control the rack 8 to move to mesh with the driven gear 6 to rotate 90 degrees. At this time, the U-shaped frame 7 drives the separation cylinder 10 to rotate 90 degrees with the driven gear 6, so that the scrap steel larger than the size of the filter hole 16 is discharged from the discharge port 12 and falls into the second conveying belt 23 to be conveyed out, thereby completing the sorting work of the scrap steel.

[0033] Of course, in the separation cylinder 10 rotates to separate the waste steel material in the separation cylinder 10 filtering, filter hole 16 will inevitably be partially blocked by the waste steel material, at this time due to the existence of the dredging plate 19, in the process of rotating the separation cylinder 10, the separation cylinder 10 outside the two sides of the side plate 17 inside through the reset spring connected to the horizontal bar 18, the top of the rotating wheel 20 will follow the separation cylinder 10 together to do the circumferential movement, when the rotating wheel 20 rotates to the top, will encounter the abutment of the arc-shaped pressing plate 21, and then forced to move in the direction of the separation cylinder 10, at this time the horizontal bar 18 is extruded by the rotating wheel 20 and forced to move the dredging plate 19 into the filter hole 16, and the filter hole 16 in the waste steel material is extruded to fall into the separation cylinder 10, to dredge the blockage to restore the working capacity of the separation cylinder 10.

[0034] In addition, in the process of separating the separation cylinder 10, a large amount of rust and dust will be generated, at this time the air pump 25 can be started to extract the rust and dust generated on the separation cylinder 10 through the dust extraction plate 24, the rust and dust is discharged into the water tank 26 through the pipeline, and is discharged through the spray pipe 28, the dispersion hole on the spray pipe 28 will disperse the rust and dust into multiple small streams, thereby increasing the mixing and precipitation of the rust and dust with the water in the water tank 26, and the gas is discharged through the gauze filter 29, thereby effectively reducing the spread of the rust and dust and affecting the health of the workers, when the work is completed, the pipeline at the exhaust end of the air pump 25 is rotated and screwed off, the water tank 26 is removed, and the sewage outlet 30 is opened to pour the mixed sewage.

[0035] The above is only a preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high efficiency scrap sorting device comprising a base plate (1) characterised in that: The top rear side of the bottom plate (1) is fixedly installed with a support table (2), the top of the support table (2) is slidably installed with a sliding block (3), the top of the sliding block (3) is fixedly installed with a connecting plate (5), the front side of the connecting plate (5) is rotatably connected with a driven gear (6) through a bearing, the front end of the driven gear (6) is fixedly installed with a U-shaped frame (7), the inner side of the connecting plate (5) is slidably installed with a rack (8) engaged with the driven gear (6), the two front ends of the U-shaped frame (7) are rotatably installed with a separation cylinder (10) through a bearing, the two ends of the separation cylinder (10) are fixedly installed with a feeding port (11) and a discharge port (12) respectively, a plurality of filter holes (16) are arranged on the outer wall of the separation cylinder (10) in a circumferential direction, the front end of the support table (2) is fixedly installed with a first conveying belt (22) and a second conveying belt (23) respectively. The outer wall of the separation cylinder (10) is fixedly installed with a plurality of side plates (17) on both sides in a circumferential direction, the inner side of the side plate (17) is slidably installed with a cross bar (18), a plurality of dredging plates (19) are fixedly installed on the side of the cross bar (18) facing the separation cylinder (10), the dredging plates (19) are arranged opposite to the filter holes (16), the side of the cross bar (18) away from the separation cylinder (10) is rotatably installed with a rotating wheel (20), the top of the U-shaped frame (7) is fixedly installed with an arc-shaped pressing plate (21) directly above the separation cylinder (10). The top of the first conveying belt (22) is fixedly installed with a dust absorption plate (24) covering the front side of the separation cylinder (10) through a rod, the left side of the first conveying belt (22) is fixedly installed with an air pump (25), the top left side of the bottom plate (1) is placed with a water tank (26), the air suction end and the air exhaust end of the air pump (25) are respectively threadedly connected with the dust absorption plate (24) and the water tank (26) through pipelines.

2. A high efficiency scrap sorting device as claimed in claim 1, characterized in that: The top of the support table (2) is provided with a limiting sliding groove matched with the sliding block (3), a lead screw (4) is threadedly connected on the sliding block (3), and the end of the lead screw (4) is fixedly connected with a first driving motor.

3. A high efficiency scrap sorting device as claimed in claim 1, wherein: The inner side of the connecting plate (5) is provided with a vertical sliding groove matched with the rack (8), a threaded rod (9) is threadedly connected on the rack (8), and the end of the threaded rod (9) is fixedly connected with a second driving motor.

4. A high efficiency scrap sorting device as claimed in claim 1, wherein: The middle part of the feeding port (11) is insertedly installed with a feeding pipe (13) extending into the inside of the separation cylinder (10), and the feeding pipe (13) is fixedly connected with the support table (2) through a connecting rod.

5. A high efficiency scrap sorting device as claimed in claim 1, wherein: The outer periphery of the feeding port (11) is fixedly installed with a gear ring (14), the rear side of the gear ring (14) is engaged with a driving gear (15), and the rotating power of the driving gear (15) is derived from a third driving motor fixedly installed on the left side of the U-shaped frame (7).

6. A high efficiency scrap sorting device as claimed in claim 1, wherein: The inner side of the side plate (17) is provided with a limiting displacement groove matched with the cross bar (18), and the two sliding end faces of the cross bar (18) are fixedly connected with the limiting displacement groove through return springs on the side facing the separation cylinder (10).

7. A high efficiency scrap sorting device as claimed in claim 1, wherein: The inner circle of the dust absorption plate (24) is provided with a plurality of suction holes, the inner bottom of the water tank (26) is fixedly provided with a spray pipe (28) communicated with the exhaust end pipeline of the air pump (25), the outer periphery of the spray pipe (28) is provided with densely distributed dispersion holes, the top of the water tank (26) is provided with a gauze filter screen (29), and the front wall of the water tank (26) is fixedly provided with a water inlet (27) and a sewage outlet (30) provided with sealing covers at the upper side and the lower side respectively.

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