CN114394714A

CN114394714A - Oil-water separation and recovery processing device for oily industrial wastewater

Info

Publication number: CN114394714A
Application number: CN202210295208.5A
Authority: CN
Inventors: 刘凯; 张康; 刘国庆
Original assignee: Shandong Hydrology And Water Environment Technology Co ltd
Current assignee: Shandong Hydrology And Water Environment Technology Co ltd
Priority date: 2022-03-24
Filing date: 2022-03-24
Publication date: 2022-04-26
Anticipated expiration: 2042-03-24
Also published as: CN114394714B

Abstract

The invention discloses an oil-water separation and recovery processing device for oily industrial wastewater, which relates to the technical field of oil-water separation devices and comprises a separation device for separating oil from water by distilling the industrial wastewater, wherein a distillation box and a heating plate are arranged on the separation device, evaporating water in the wastewater, arranging a closing plate and a closing ball on the separating device, respectively controlling the outflow of oil and the injection of the wastewater, arranging a filtering device for filtering impurities in the industrial wastewater on the upper end of the separating device, arranging a movable filter screen on the filtering device for filtering the industrial wastewater, moving a scraper on the filter screen to scrape the impurities on the filter screen after filtering, arranging a flushing device for flushing the filtering device on the side edge of the separating device, collecting water after partial distillation of the separating device by the flushing device, the device can remove impurities in the industrial wastewater while performing oil-water separation on the industrial wastewater.

Description

Oil-water separation and recovery processing device for oily industrial wastewater

Technical Field

The invention relates to the technical field of oil-water separation devices, in particular to an oil-water separation and recovery treatment device for oily industrial wastewater.

Background

The industrial wastewater refers to wastewater, sewage and waste liquid generated in industrial production, which contains industrial raw materials, intermediate products, byproducts and pollutants generated in the production process, and the water can be lost along with the loss of water, thereby causing environmental pollution, especially water. The important causes of pollution, the kind and amount of industrial wastewater are rapidly increasing with the rapid development of industry. Although the treatment of industrial effluents has started as early as the end of the 19 th century, there are still some technical problems that have not been completely solved, due to their complex composition and variable nature, in oily industrial effluents having phenols, mainly from the production processes of ethylene, synthetic phenols, polyamide fibers, synthetic dyes, organic pesticides and phenolic resins by petroleum cracking.

The publication number is: the Chinese patent of CN101602528A discloses an oil-water separation device for treating oily wastewater, wherein a filter element is not easy to block, the service life is long, the labor intensity is low, and the treatment cost is low, the oil-water separation device integrally has a multistage oil-water separation structure and comprises a sewage filtering tank and an oil-water separation main machine, and the sewage filtering tank is provided with a filtering basket for primary filtering, a filtering screen and a sewage discharge pump; the oil-water separation main machine mainly comprises an oil separating device I and an oil separating device II, and although the oil-water separation device can achieve the effect of oil-water separation, harmful substances in industrial wastewater cannot be removed.

Disclosure of Invention

In order to solve the technical problems, the invention adopts the main technical scheme that: the utility model provides an oily industrial waste water oil separating recovery processing apparatus, includes the distillation case, its characterized in that of filter equipment: the distillation box is characterized in that a water outlet with a downward opening is arranged at the middle end of the distillation box, a filter box is arranged at one end of the distillation box, which is far away from the water outlet, filtering chutes are arranged on two side edges of the filter box, a water collecting box is arranged at one end of the distillation box, which is close to the water outlet, an opening is arranged at the upper end of the water collecting box, the water outlet is aligned with the opening at the upper end of the water collecting box, a filter hopper is arranged at the lower end of the filter box, a filter pipe is arranged at the lower end of the filter hopper, the filter box is connected with the distillation box through the filter hopper and the filter pipe, a heating plate is arranged at the bottom end inside the distillation box, a closing component is arranged on the distillation box, the closing component comprises a closing ball arranged in the filter pipe and a closing plate arranged at the bottom of the distillation box, a support frame is arranged at one end of the filter pipe, which is far away from the distillation box, and one end of the support frame is connected with the filter pipe, the other end of the supporting frame is rotatably provided with a recovery electric cylinder, one end of the recovery electric cylinder is rotatably connected with the supporting frame, the other end of the recovery electric cylinder is rotatably provided with a blocking plate, the blocking plate is rotatably arranged on the filter pipe, and a filter disc is arranged inside the filter pipe; the filter equipment including installing the washing case in the rose box upper end, the washing incasement be provided with the filter that goes up and down and the gliding board that strikes off, filter equipment on be provided with drive assembly, drive assembly drive strike off board and filter motion, filter equipment still including installing the garbage collection box at the rose box side, the garbage collection box install the opening direction at the washing case, carry out twice filtration through setting up of filter and filter disc to industrial waste water, guarantee that the impurity in the industrial waste water is got rid of completely, and carry out water oil separating to industrial waste water through the method of distillation.

Further, distillation case, rose box and header tank all be provided with the multiunit, and set up the mode the same, the header tank on be provided with drainage pipe, the multiunit header tank pass through drainage pipe and connect, the rose box rear end be provided with the filling tube, the multiunit rose box pass through the filling tube and connect, the distillation case on be provided with oily pipeline, the multiunit distillation case pass through oily pipe connection, oily pipeline on be provided with out oil pipe, the position at distillation case installation closing plate is installed to play oil pipe, through the setting of multiunit distillation case, rose box and header tank, make the water oil separating efficiency to industrial waste water higher.

Furthermore, the distance of the filter disc close to the distillation box in the filter pipe is smaller than the distance of the blocking plate close to the distillation box on the filter pipe, so that the filter disc filters impurities above the blocking plate, and the cleaning is simpler and more convenient.

Furthermore, the bottom of the distillation box is an inclined plane, the lowest part of the inclined plane on the distillation box is the joint of the distillation box and the closed plate, so that the oil flows to the joint of the distillation box and the closed plate through gravity, and the oil is convenient to collect and treat.

Further, the closed assembly still including installing the closed motor at the rose box lower extreme, the output shaft of closed motor on the coaxial incomplete gear that is provided with, the rose box be close to the direction rotation of play oil pipe and be provided with gear two, the rose box be close to the direction rotation of rose pipe and be provided with gear one, gear two and gear one all with incomplete gear indirect meshing, gear two go up coaxial rotation and be provided with the belt, belt one end be connected with gear two, the belt other end be connected with the closing plate, gear one and closed ball coaxial coupling.

Further, the drive assembly including install the swing motor at the garbage collection box lower extreme, swing motor's output shaft on be provided with the telescopic swinging arms, swinging arms one end be connected with swing motor, the swinging arms other end be provided with the slide bar, slide bar slidable mounting on filtering the spout, slide bar and filter, filter slidable mounting inside the rose box with wash the case, wash case upper end fixed mounting have the removal rack, wash case upper end slidable mounting scrape the motor, the output shaft that strikes off the motor on be provided with and strike off the gear, strike off gear and removal rack toothing, strike off the motor lower extreme and strike off the board and be connected, carry out real-time striking off to the impurity on the filter, avoid impurity to drop into industrial waste water once more.

Has the advantages that: (1) according to the invention, the industrial wastewater is subjected to distillation separation by the arranged separation device, the industrial wastewater is filtered, and different collecting channels are arranged, so that the oil-water separation process of the industrial wastewater is simplified; (2) the industrial wastewater is mainly filtered by the arranged filtering device, so that the industrial wastewater is ensured not to have impurities during distillation; (3) according to the invention, the filtering device is flushed by the arranged flushing device, the flushing device can recover distilled water in the separating device, and then the filtering device is flushed by the water through the spray head.

Drawings

FIG. 1 is a schematic view of the overall device structure of the present invention.

FIG. 2 is a schematic view of the structure of the separation apparatus of the present invention.

FIG. 3 is a schematic view of a partial structure of the separation device of the present invention.

FIG. 4 is a schematic view of a partial structure of a separation device according to the present invention.

FIG. 5 is a schematic view of a partial structure of the separation device of the present invention.

FIG. 6 is a schematic view of a partial structure of the separation device of the present invention.

FIG. 7 is a schematic view of a partial structure of the separation device of the present invention.

FIG. 8 is a schematic view showing a partial structure of a separation apparatus according to the present invention.

FIG. 9 is a schematic view of the structure of the filtering apparatus of the present invention.

FIG. 10 is a schematic view of a partial structure of the filter device of the present invention.

Fig. 11 is a schematic structural view of the flushing device of the present invention.

Reference numerals: 1-a separation device; 2-a filtration device; 3-a washing device; 101-a distillation box; 1011-water outlet; 1012-a recovery port; 102-a filter tank; 1021-a filter chute; 103-an oil pipeline; 1031-oil outlet pipe; 104-a drainage pipeline; 105-a water collection tank; 106-an injection tube; 107-a filter funnel; 108-a heating plate; 109-a filter tube; 110-gear one; 111-gear two; 112-a belt; 113-incomplete gear; 114-a closed sphere; 115-a closed motor; 116-a closure plate; 117-a support frame; 118-recovery electric cylinder; 119-a blocking plate; 120-a filter tray; 201-a cleaning box; 202-a scraping motor; 203-moving the rack; 204-scraping gear; 205-a swing lever; 206-a sliding bar; 207-swing motor; 208-a waste collection bin; 209-scraping plate; 210-a filter plate; 301-a collection tank; 3011-a collection well; 302-a spray tube; 303-a spray pump; 304-spray head.

Detailed Description

In the following description of the present invention, it is to be noted that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the following description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The invention will be further described with reference to the drawings and illustrative embodiments, which are provided herein to illustrate and not to limit the invention. In addition, if a detailed description of the known art is not necessary to show the features of the present invention, it is omitted.

Example (b): referring to fig. 1, the oil-water separating and recycling device for oily industrial wastewater comprises a separating device 1 for distilling industrial wastewater to separate oil from water, a filtering device 2 for filtering impurities in the industrial wastewater is arranged at the upper end of the separating device 1, and a flushing device 3 for flushing the filtering device is arranged at the side edge of the separating device 1.

Referring to fig. 2, 3, 4, 5, 6, 7 and 8, the separation device 1 includes a distillation tank 101, the upper end of the distillation tank 101 is provided with a recovery port 1012 with a downward opening, the middle section of the distillation tank 101 is provided with a water outlet 1011 with a downward opening, the side of the distillation tank 101 close to the water outlet 1011 is provided with a water collecting tank 105, the upper end of the water collecting tank 105 is provided with an opening, the water outlet 1011 is aligned with the upper opening of the water collecting tank 105, the side of the distillation tank 101 away from the water outlet 1011 is provided with a filter tank 102, both sides of the filter tank 102 are provided with filter chutes 1021, the distillation tank 101 is provided with three groups, the three groups of distillation tanks 101 are connected through an oil pipeline 103, the oil pipeline 103 is provided with an oil outlet 1031, the filter tanks 102 are provided with three groups, the three groups of filter tanks 102 are connected through an injection pipe 106, the water collecting tank 105 is provided with three groups, the three groups of water collecting tanks 105 are connected through a drainage pipe 104, the lower end of the filter tank 102 is provided with a filter hopper 107, the lower end of the filter hopper 107 is provided with a filter pipe 109, the bottom end inside the distillation box 101 is provided with a heating plate 108, the bottom end of the distillation box 101 is rotatably provided with a closing plate 116, the bottom of the distillation box 101 is an inclined surface, the lowest part of the inclined surface on the distillation box 101 is the joint of the distillation box 101 and the closing plate 116, the filter box 102 is connected with the distillation box 101 through the filter hopper 107 and the filter pipe 109, one end of the filter pipe 109 far away from the distillation box 101 is provided with a support frame 117, one end of the support frame 117 is connected with the filter pipe 109, the other end of the support frame 117 is rotatably provided with a recovery electric cylinder 118, one end of the recovery electric cylinder 118 is rotatably connected with the support frame 117, the other end of the recovery electric cylinder 118 is rotatably provided with a blocking plate 119, the blocking plate 119 is rotatably installed on the filter pipe 109, the filter disc 120 is installed inside the filter pipe 109, the closing ball 114 is rotatably installed inside the filter pipe 109, the lower end of the filter box 102 is provided with a closing motor 115, an incomplete gear 113 is coaxially arranged on an output shaft of the closing motor 115, a second gear 111 is rotatably arranged in the direction of the filter box 102 close to the oil outlet 1031, a first gear 110 is rotatably arranged in the direction of the filter box 102 close to the filter pipe 109, the second gear 111 and the first gear 110 are both indirectly engaged with an incomplete gear 113, a belt 112 is coaxially rotatably arranged on the second gear 111, one end of the belt 112 is connected with the second gear 111, the other end of the belt 112 is connected with a closing plate 116, the first gear 110 is coaxially connected with a closing ball 114, industrial wastewater is filled into the filter box 102 through an injection pipe 106, at the moment, the closing motor 115 is started, the incomplete gear 113 is driven to rotate by the closing motor 115, the incomplete gear 113 drives the first gear 110 to rotate, the first gear 110 drives the closing ball 114 to rotate, the industrial wastewater enters the distillation box 101 through the filter hopper 107 and the filter pipe 109, the closing motor 115 drives the closing ball 114 to close the filter pipe 109 after the industrial wastewater is circulated, and when the industrial wastewater passes through the filter disc 120 in the filter pipe 109, performing primary filtration, accumulating sundries in industrial wastewater on a blocking plate 119, starting a recovery electric cylinder 118 when the sundries need to be taken out, driving the blocking plate 119 to rotate on a filter pipe 109 by the recovery electric cylinder 118, opening the blocking plate 119, taking out the sundries, heating and distilling the wastewater by a heating plate 108 after the wastewater enters a distillation box 101, discharging the distilled water from the distillation box 101 through a recovery port 1012, collecting the water discharged from a water outlet 1011 into a water collecting box 105, and then discharging the water in the water collecting box 105 through a water discharging pipe 104. due to the arrangement of an inclined surface at the bottom of the distillation box 101, residual oil is accumulated at the joint of a closing plate 116 and the distillation box 101, starting a closing motor 115 at the moment, driving the closing motor 115 to drive an incomplete gear 113 to be meshed with a second gear 111, driving a belt 112 to rotate when the second gear 111 rotates, driving the closing plate 116 to rotate by the belt 112, and opening the closing plate 116 to block the distillation box 101, the oil inside the distillation tank 101 is discharged, and the oil flows into the oil pipe 103 through the oil outlet pipe 1031 and is then discharged through the oil pipe 103 to be processed.

Referring to fig. 1, 9 and 10, the filtering apparatus 2 includes a cleaning box 201 mounted on the upper end of the filtering box 102, a moving rack 203 is disposed on one side of the cleaning box 201 away from the filtering box 102, a scraping motor 202 is slidably disposed on one side of the cleaning box 201 away from the filtering box 102, a scraping gear 204 is disposed on an output shaft of the scraping motor 202, the scraping gear 204 is engaged with the moving rack 203, a scraping plate 209 is disposed on one end of the scraping motor 202 close to the filtering box 102, a swinging motor 207 is disposed on one side of the filtering box 102 close to the distilling box 101, a telescopic swinging rod 205 is disposed on an output shaft of the swinging motor 207, one end of the swinging rod 205 is connected with an output shaft of the swinging motor 207, a sliding rod 206 is rotatably disposed on the other end of the swinging rod 205, the sliding rod 206 is slidably mounted on a filtering chute 1021, a filtering plate 210 is disposed on the sliding rod 206, the filtering plate 210 is slidably mounted inside the cleaning box 201 and the filtering box 102, the initial position of the scraping plate 209 is at one end of the filter box 102 close to the filter hopper 107, when industrial wastewater is injected into the filter box 102, the swing motor 207 is started, the swing motor 207 drives the swing rod 205 to swing, the swing rod 205 drives the sliding rod 206 to slide on the filtering chute 1021, the sliding rod 206 drives the filtering plate 210 to slide in the filter box 102 and the cleaning box 201 when sliding, impurities in the industrial wastewater in the filter box 102 are filtered out, when the sliding rod 206 drives the filtering plate 210 to reach the lower part of the scraping plate 209, the swing motor 207 stops moving, the initial position of the scraping plate 209 is the side of the cleaning box 201 far away from the waste collection box 208, at this time, the scraping motor 202 is started, the scraping motor 202 drives the scraping gear 204 to rotate on the moving rack 203, the scraping gear 204 drives the scraping motor 202 to slide on the cleaning box 201, and the scraping motor 202 drives the scraping plate 209 to move, the scraping plate 209 scrapes impurities on the filter plate 210 into the waste collection tank 208.

The flushing device 3 shown in fig. 1 and 11 includes a collecting tank 301 installed on the distillation box 101, a collecting hole 3011 with an upward opening is formed in the collecting tank 301, a spraying pipe 302 is arranged on one side of the collecting tank 301 away from the collecting hole 3011, a spraying pump 303 is arranged at the middle end of the spraying pipe 302, one end of the spraying pipe 302 is connected with the collecting tank 301, a spraying head 304 is arranged at the other end of the spraying pipe 302, the collecting hole 3011 is aligned with a recovery port 1012, and the spraying pump 303 pumps water in the collecting tank 301 and sprays out through the spraying head 304 to clean the filter plate 210.

The working principle is as follows: when the industrial waste water cleaning device works, industrial waste water is filled into the filter box 102 through the injection pipe 106, the swing motor 207 is started, the swing motor 207 drives the swing rod 205 to swing, the swing rod 205 drives the sliding rod 206 to slide on the filtering chute 1021, the sliding rod 206 drives the filter plate 210 to slide in the filter box 102 and the cleaning box 201 when sliding, impurities in the industrial waste water in the filter box 102 are filtered out, when the sliding rod 206 drives the filter plate 210 to reach the position below the scraping plate 209, the swing motor 207 stops moving, the initial position of the scraping plate 209 is the side of the cleaning box 201 far away from the waste material collecting box 208, at the moment, the scraping motor 202 is started, the scraping motor 202 drives the scraping gear 204 to rotate, the scraping gear 204 rotates on the moving rack 203, the scraping gear 204 drives the scraping motor 202 to slide on the cleaning box 201, the scraping motor 202 drives the scraping plate 209 to move, the scraping plate 209 scrapes the impurities on the filter plate 210 into the waste material collecting box 208, at the moment, the closing motor 115 is started, the closing motor 115 drives the incomplete gear 113 to rotate, the incomplete gear 113 drives the first gear 110 to rotate, the first gear 110 drives the closing ball 114 to rotate, so that the industrial wastewater enters the distillation box 101 through the filter hopper 107 and the filter pipe 109, after the industrial wastewater is circulated, the closing motor 115 drives the closing ball 114 to close the filter pipe 109, the industrial wastewater is filtered once when passing through the filter disc 120 in the filter pipe 109, impurities in the industrial wastewater are accumulated on the blocking plate 119, when the impurities need to be taken out, the recovery electric cylinder 118 is started, the recovery electric cylinder 118 drives the blocking plate 119 to rotate on the filter pipe 109, the blocking plate 119 is opened, the impurities are taken out, after the wastewater enters the distillation box 101, the heating plate 108 heats and distills the wastewater, the distilled water is discharged through the recovery port 1012 and the water outlet 1011, the water discharged from the water outlet 1011 enters the water collection box 105 to be collected, the water discharged from the recovery port 1012 enters the collection tank 301 through the collection hole 3011, and then the water in the water collection tank 105 is discharged through the drainage pipeline 104, because of the arrangement of the inclined surface at the bottom of the distillation tank 101, the residual oil is accumulated at the joint of the closing plate 116 and the distillation tank 101, at this time, the closing motor 115 is started, so that the closing motor 115 drives the incomplete gear 113 to be meshed with the second gear 111, the second gear 111 drives the belt 112 to rotate when rotating, the belt 112 drives the closing plate 116 to rotate, the closing plate 116 opens the blockage of the distillation tank 101, so that the oil inside the distillation tank 101 flows out, the oil flows into the oil pipeline 103 through the oil outlet pipe 1031, and then the oil is discharged through the oil pipeline 103 to be processed, when the separation device 10 of the flushing device 3 needs to be flushed, the spray pump 303 pumps the water inside the collection tank 301 to be sprayed out through the spray head 304, and cleans the filter plate 210.

The present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make various modifications without creative efforts from the above-described conception and fall within the scope of the present invention.

Claims

1. The utility model provides an oily industrial waste water oil separating recovery processing apparatus, includes distillation case (101), filter equipment (2), its characterized in that: the distillation box (101) middle end be provided with delivery port (1011) that the opening is decurrent, distillation box (101) keep away from the one end of delivery port (1011) and be provided with filter tank (102), filter tank (102) both sides limit all be provided with and filter spout (1021), distillation box (101) one end near delivery port (1011) be provided with header tank (105), header tank (105) upper end be provided with the opening part, delivery port (1011) align with header tank (105) upper end opening part, filter tank (102) lower extreme be provided with filter hopper (107), filter hopper (107) lower extreme be provided with filter tube (109), filter tank (102) and distillation box (101) pass through filter hopper (107), filter tube (109) and be connected, distillation box (101) inside bottom be provided with hot plate (108), distillation box (101) on be provided with closed subassembly, the closed assembly comprises a closed ball (114) arranged in the filter pipe (109) and a closed plate (116) arranged at the bottom of the distillation box (101), a support frame (117) is arranged at one end, far away from the distillation box (101), of the filter pipe (109), one end of the support frame (117) is connected with the filter pipe (109), a recovery electric cylinder (118) is rotatably arranged at the other end of the support frame (117), one end of the recovery electric cylinder (118) is rotatably connected with the support frame (117), a blocking plate (119) is rotatably arranged at the other end of the recovery electric cylinder (118), the blocking plate (119) is rotatably arranged on the filter pipe (109), and a filter disc (120) is arranged in the filter pipe (109); filter equipment (2) including installing washing case (201) in filter tank (102) upper end, washing case (201) in be provided with filter (210) and the gliding board of scraping off (209) that go up and down, filter equipment (2) on be provided with drive assembly, drive assembly drive scrape off board (209) and filter (210) motion, filter equipment (2) still including installing waste collecting box (208) at filter tank (102) side, waste collecting box (208) install the opening direction at washing case (201).

2. The oil-water separation and recovery processing device for the oily industrial wastewater according to claim 1, which is characterized in that: distillation case (101), rose box (102) and header tank (105) all be provided with the multiunit, and set up the mode the same, header tank (105) on be provided with drainage pipe (104), multiunit header tank (105) connect through drainage pipe (104), rose box (102) rear end be provided with filling tube (106), multiunit rose box (102) connect through filling tube (106), distillation case (101) on be provided with oily pipeline (103), multiunit distillation case (101) connect through oily pipeline (103), oily pipeline (103) on be provided with out oil pipe (1031), go out oil pipe (1031) install the position of closing plate (116) in distillation case (101).

3. The oil-water separation and recovery processing device for the oily industrial wastewater according to claim 1, which is characterized in that: the distance between the filter disc (120) and the distillation box (101) in the filter pipe (109) is less than the distance between the blocking plate (119) and the distillation box (101) on the filter pipe (109).

4. The oil-water separation and recovery processing device for the oily industrial wastewater according to claim 1, which is characterized in that: the bottom of the distillation box (101) is an inclined surface, and the lowest part of the inclined surface on the distillation box (101) is the joint of the distillation box (101) and the closing plate (116).

5. The oil-water separation and recovery processing device for the oily industrial wastewater according to claim 1, which is characterized in that: the closed assembly further comprises a closed motor (115) arranged at the lower end of the filter box (102), an incomplete gear (113) is coaxially arranged on an output shaft of the closed motor (115), the filter box (102) is rotatably arranged in a direction close to the oil outlet pipe (1031), a gear II (111) is rotatably arranged in a direction close to the filter pipe (109) of the filter box (102), the gear I (110) is rotatably arranged in a direction close to the filter pipe (109), the gear II (111) and the gear I (110) are both indirectly meshed with the incomplete gear (113), a belt (112) is rotatably arranged on the gear II (111) in a coaxial mode, one end of the belt (112) is connected with the gear II (111), the other end of the belt (112) is connected with the closed plate (116), and the gear I (110) is coaxially connected with the closed ball (114).

6. The oil-water separation and recovery processing device for the oily industrial wastewater according to claim 5, which is characterized in that: the driving assembly comprises a swing motor (207) arranged at the lower end of a waste collection box (208), an output shaft of the swing motor (207) is provided with a telescopic swing rod (205), one end of the swing rod (205) is connected with the swing motor (207), the other end of the swing rod (205) is provided with a sliding rod (206), the sliding rod (206) is slidably arranged on a filtering chute (1021), the sliding rod (206) and a filtering plate (210) are arranged, the filtering plate (210) is slidably arranged in the filtering box (102) and a cleaning box (201), the upper end of the cleaning box (201) is fixedly provided with a movable rack (203), the upper end of the cleaning box (201) is slidably provided with a scraping motor (202), an output shaft of the scraping motor (202) is provided with a scraping gear (204), and the scraping gear (204) is meshed with the movable rack (203), the lower end of the scraping motor (202) is connected with a scraping plate (209).