A PCB wastewater treatment device with filtering function

Abstract

The present invention belongs to the technical field of wastewater filtration, and specifically relates to a PCB wastewater treatment device with a filtering function, comprising a filtering chamber, a base is arranged at the bottom of the filtering chamber, a mounting plate is fixedly connected to the outer wall of the filtering chamber, a filtering assembly is rotatably connected in the mounting plate, and a scraping device and an auxiliary cleaning device are arranged above the base. The PCB wastewater treatment device with a filtering function uses a scraping device, so that once a large amount of impurities are attached to a liquid filter paper layer during use, the filtering effect in the filtering chamber is reduced, and the wastewater in the filtering chamber rises. At the same time, the large amount of impurities causes the filtering chamber to drop under the action of gravity, and then the vertical rod rises relative to the filtering chamber. Under the action of the hinged rod, the sliding sleeve is pushed to slide, so that the cleaning scraper contacts the liquid filter paper layer. Under the rotation of the liquid filter paper layer, the cleaning scraper cleans the impurities on the liquid filter paper layer, thereby automatically cleaning the impurities on the liquid filter paper layer.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater filtration, and in particular to a PCB wastewater treatment device with a filtration function. Background Art

[0002] Wastewater treatment is the use of physical, chemical and biological methods to treat wastewater, purify the wastewater, reduce pollution, and even recycle and reuse wastewater to make full use of water resources. In the process of wastewater treatment, multiple filtration treatments are required.

[0003] At present, in the prior art, when filtering wastewater, the turbidity of the wastewater is generally detected by a sensor. When the turbidity of the wastewater reaches a certain level, there are more impurities attached to the front liquid filter paper layer, which affects the filtering effect of the liquid filter paper layer. At this time, the sensor will transmit an electrical signal to the controller to backwash the liquid filter paper layer, rinse the impurities attached to the liquid filter paper layer, and discharge the impurities to ensure continuous filtration of the liquid filter paper layer. However, the turbidity of the wastewater is greatly affected by impurities. For example, when impurities are not easy to adhere, the wastewater will be more turbid when there are fewer impurities. When impurities are easy to precipitate, the wastewater will not be very turbid when there are more impurities. In addition, the sensor may fail if it continues to work in a humid environment. In view of this, we propose a PCB wastewater treatment device with a filtering function. Summary of the invention

[0004] The main purpose of the present invention is to provide a PCB wastewater treatment device with a filtering function, which can solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention proposes a PCB wastewater treatment device with a filtering function, comprising a filtering chamber, a base is provided at the bottom of the filtering chamber, a mounting plate is fixedly connected to the outer wall of the filtering chamber, a filtering assembly is rotatably connected to the mounting plate, a scraping device and an auxiliary cleaning device are provided above the base, and the scraping device comprises:

[0006] A vertical rod, the vertical rod passes through the inner wall of the filter bin and is slidably connected to the inner wall of the filter bin, and a support block is fixedly connected to the bottom of the vertical rod;

[0007] A limit assembly, wherein the limit assembly is arranged at the bottom of the filter bin, and a hinged rod is hinged at the top of the vertical rod;

[0008] A sliding sleeve, wherein the sliding sleeve is hinged to the hinge rod, the sliding sleeve is slidably connected to a guide rail, and the guide rail is fixedly connected to the inner wall of the filter bin;

[0009] and a cleaning scraper, wherein the cleaning scraper is fixedly connected to the outer wall of the sliding sleeve, and the use of the cleaning scraper facilitates the subsequent cleaning of the filter assembly to ensure the continuous filtering effect of the device;

[0010] The cam is connected with the support plate by the spring, and the end of the cam is connected with the limit rod by the spring, and the end of the cam is connected with the limit rod by the spring, so that the cam can be easily removed.

[0011] Preferably, a sealing sleeve is fixedly connected to the bottom of the filter bin, and the sealing sleeve is slidably connected to the vertical rod. Through the use of the sealing sleeve, it can be ensured that the vertical rod is more stable when sliding.

[0012] Preferably, a swing plate is rotatably connected to the outer wall of the cleaning scraper, and an arc rod is rotatably connected to the outer wall of the swing plate. The arc rod and the swing plate are elastically connected via a torsion spring, and an elastic ball is fixedly connected to one end of the arc rod away from the swing plate. The swing plate is driven to rotate by the extrusion rod, so that the swing plate can remove impurities attached to the outer wall of the cleaning scraper. At the same time, under the action of the torsion spring, the cleaning scraper can automatically perform a reset operation.

[0013] Preferably, the limiting assembly includes a sleeve rod, which is fixedly connected to the bottom of the filter bin, and the sleeve rod is sleeved with a T-rod, and the T-rod is elastically connected to the inner wall of the sleeve rod via a connecting spring, and a steel rope is fixedly connected to the outer wall of the sleeve rod, and one end of the steel rope away from the T-rod is fixedly connected to the inner wall of the base, and the T-rod can compress the connecting spring by tightening the steel rope. In the process of the filter bin driving the limiting assembly to descend, the T-rod can gradually reset under the action of the connecting spring.

[0014] Preferably, a bayonet is provided on the outer wall of the vertical rod, and the size of the bayonet matches the end of the T-rod, and when the T-rod moves to the bayonet position, the T-rod can be inserted into the bayonet.

[0015] Preferably, an inclined groove is provided on a side of the sliding block close to the rotating wheel.

[0016] Preferably, a water inlet, a backwash outlet and a water outlet are fixedly connected to the outer wall of the filter bin, and the backwash outlet is fixedly connected to a water pump. Wastewater can be added to the filter bin through the water inlet, and the filtered wastewater can be discharged by using the water outlet, and the filtered impurities can be discharged by using the backwash outlet.

[0017] Preferably, an elastic telescopic rod 2 is fixedly connected to the inner surface of the base, the telescopic end of the elastic telescopic rod 2 is fixedly connected to the bottom of the base, a groove is opened on the inner surface of the base, a support spring is embedded in the groove, and the top of the support spring is fixedly connected to the support block.

[0018] Preferably, the filter assembly includes a liquid filter paper layer, which is penetrated by a rotating shaft and fixedly connected to the rotating shaft. An impeller is fixedly connected to one end of the rotating shaft away from the liquid filter paper layer. During the process of filtering and discharging drainage, the drainage drives the impeller to rotate, thereby driving the rotating shaft to rotate, causing the liquid filter paper layer to rotate.

[0019] Preferably, a fixing piece is fixedly connected to the outer wall of the liquid filter paper layer, and a small cylinder is fixedly connected to the outer wall of the fixing piece. The rotation of the liquid filter paper layer can drive the fixing piece and the small cylinder to rotate, so that the small cylinder is inserted into the inclined groove, and the sliding block can move.

[0020] The present invention provides a PCB wastewater treatment device with filtering function, which has the following beneficial effects:

[0021] (1) The PCB wastewater treatment device with filtering function uses a scraping device. Once a large amount of impurities are attached to the liquid filter paper layer during use, the filtering effect in the filter chamber decreases, and the wastewater in the filter chamber rises. At the same time, the large amount of impurities causes the filter chamber to drop under the action of gravity, and then the vertical rod rises relative to the filter chamber. Under the action of the hinged rod, the sliding sleeve is pushed to slide, so that the cleaning scraper contacts the liquid filter paper layer. Under the rotation of the liquid filter paper layer, the cleaning scraper cleans the impurities on the liquid filter paper layer, thereby realizing automatic cleaning of the impurities on the liquid filter paper layer. This method is stable and ensures continuous filtration of the liquid filter paper layer.

[0022] (2) The PCB wastewater treatment device with filtering function uses a scraping device. During the process of cleaning the impurities on the liquid filter paper layer by the cleaning scraper, the filter chamber drives the T-bar down to be flush with the bayonet, so that the T-bar can be inserted into the bayonet to fix the vertical bar, thereby ensuring that the cleaning scraper can stably clean the liquid filter paper layer. After the impurities in the filter chamber are discharged by backwashing, the filter chamber is reset under the reset action of the elastic telescopic rod 2. Under the action of the steel rope, the T-bar is pulled out of the sleeve rod, the limit on the vertical bar is released, and the support spring pulls the vertical bar downward to reset, thereby separating the cleaning scraper from the liquid filter paper layer, ensuring that the cleaning scraper can stably clean the liquid filter paper layer for a period of time, while not continuously cleaning the liquid filter paper layer, thereby preventing excessive wear of the liquid filter paper layer and improving the service life of the liquid filter paper layer.

[0023] (3) The PCB wastewater treatment device with filtering function uses a scraping device and an auxiliary cleaning device. When the cleaning scraper moves to the liquid filter paper layer, the liquid filter paper layer rotates, which can drive the fixing part and the small cylinder to rotate, so that the small cylinder is inserted into the inclined groove, so that the sliding block moves, and then the extrusion rod drives the swing plate to rotate, so that the swing plate can remove impurities attached to the outer wall of the cleaning scraper, thereby improving the cleanliness of the cleaning scraper and further improving the cleaning effect of the liquid filter paper layer.

[0024] (4) The PCB wastewater treatment device with filtering function uses a scraping device and an auxiliary cleaning device. When the cleaning scraper cleans the impurities on the liquid filter paper layer, the swing plate swings, driving the arc rod to move, so that the arc rod drives the elastic ball to knock the liquid filter paper layer, thereby accelerating the falling of impurities on the liquid filter paper layer and further improving the cleaning effect of the liquid filter paper layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0026] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0027] Figure 2 The overall cross-sectional structure of the present invention is shown in FIG. Figure 1 ;

[0028] Figure 3 This is a schematic diagram of the base structure of the present invention;

[0029] Figure 4 The overall cross-sectional structure of the present invention is shown in FIG. Figure 2 ;

[0030] Figure 5 It is a schematic diagram of the structure of the scraping device and the liquid filter paper layer of the present invention;

[0031] Figure 6 For the present invention Figure 5 Schematic diagram of the structure of A;

[0032] Figure 7 This is a schematic diagram of the auxiliary cleaning device and the liquid filter paper layer structure of the present invention;

[0033] Figure 8 For the present invention Figure 7 Schematic diagram of the structure of middle B;

[0034] Fig. 9 It is a schematic diagram of the structure of a partial scraping device and an auxiliary cleaning device of the present invention;

[0035] Fig.10 For the present invention Fig. 9 Schematic diagram of the C structure;

[0036] Fig.11 It is a partial structural schematic diagram of the auxiliary cleaning device of the present invention;

[0037] Fig.12 It is a schematic diagram of the cross-sectional structure of the limiting component of the present invention.

[0038] Description of Figure Numbers:

[0039] 1. Filter chamber; 2. Base; 3. Mounting plate; 4. Filter assembly; 5. Scraping device; 6. Auxiliary cleaning device; 101. Water inlet; 102. Backwash outlet; 103. Water pump; 104. Water outlet; 21. Elastic telescopic rod 2; 22. Groove; 41. Liquid filter paper layer; 42. Rotating shaft; 43. Impeller; 411. Fixing piece; 412. Small cylinder; 51. Vertical rod; 52. Support block; 53. Sealing sleeve; 54. Limit assembly; 55 , hinged rod; 56, sliding sleeve; 57, guide rail; 58, cleaning scraper; 59, swing plate; 510, arc rod; 511, elastic ball; 5101, bayonet; 541, sleeve rod; 542, T rod; 543, steel rope; 61, connecting plate; 62, extrusion rod; 63, cross bar; 64, limit round rod; 65, support frame; 66, swing rod; 67, rotating wheel; 68, sliding block; 69, support plate; 610, elastic telescopic rod 1; 681, inclined groove.

[0040] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] See also Figure 1-Figure 12 The present invention proposes a PCB wastewater treatment device with a filtering function, comprising a filtering chamber 1, a water inlet 101, a backwash outlet 102 and a water outlet 104 are fixedly connected to the outer wall of the filtering chamber 1, the backwash outlet 102 is fixedly connected to a water pump 103, a base 2 is arranged at the bottom of the filtering chamber 1, an elastic telescopic rod 21 is fixedly connected to the inner surface of the base 2, the telescopic end of the elastic telescopic rod 21 is fixedly connected to the bottom of the base 2, a groove 22 is provided on the inner surface of the base 2, a mounting plate 3 is fixedly connected to the outer wall of the filtering chamber 1, a filtering component 4 is rotatably connected in the mounting plate 3, and the filtering component 4 includes a liquid filter paper layer 41, wherein the liquid filter paper layer 41 is composed of liquid filter paper and a rotating through-hole plate, the liquid filter paper layer 41 is penetrated by a rotating shaft 42 and is fixedly connected to the rotating shaft 42, and an impeller 43 is fixedly connected to one end of the rotating shaft 42 away from the liquid filter paper layer 41, and the filtered drainage is discharged from the water outlet 104, which can drive the impeller 43 to rotate, and then drive the rotating shaft 42 to rotate, so that the liquid filter paper layer 41 rotates, thereby improving the filtering effect of the wastewater, and a scraping device 5 and an auxiliary cleaning device 6 are arranged above the base 2. Through the use of the scraping device 5 and the auxiliary cleaning device 6, it can be ensured that the wastewater is continuously filtered in the filter bin 1.

[0043] In the embodiment of the present invention, in order to be able to automatically clean the liquid filter paper layer 41 after a large amount of impurities are attached, specifically, the scraping device 5 includes a vertical rod 51, a limiting assembly 54, a sliding sleeve 56 and a cleaning scraper 58. The vertical rod 51 passes through the inner wall of the filter bin 1 and is slidably connected to the inner wall of the filter bin 1. The bottom of the vertical rod 51 is fixedly connected to a support block 52, a support spring is embedded in the groove 22, and the top of the support spring is fixedly connected to the support block 52. The limiting assembly 54 is arranged at the bottom of the filter bin 1, the top of the vertical rod 51 is hinged with a hinged rod 55, the sliding sleeve 56 is hinged with the hinged rod 55, the sliding sleeve 56 is slidably connected to a guide rail 57, and the guide rail 57 is fixedly connected to the inner wall of the filter bin 1, and the cleaning scraper 58 is fixedly connected to the vertical rod 51. On the outer wall of the sliding sleeve 56, a sealing sleeve 53 is fixedly connected to the bottom of the filter bin 1, and the sealing sleeve 53 is slidably connected to the vertical rod 51. The sealing sleeve 53 maintains the seal of the vertical rod 51 when sliding. A limit assembly 54 is set at the bottom of the filter bin 1, and the limit assembly 54 includes a sleeve rod 541, which is fixedly connected to the bottom of the filter bin 1, and the sleeve rod 541 is sleeved with a T rod 542. The T rod 542 and the inner wall of the sleeve rod 541 are elastically connected through a connecting spring. A steel rope 543 is fixedly connected to the outer wall of the sleeve rod 541, and one end of the steel rope 543 away from the T rod 542 is fixedly connected to the inner wall of the base 2. A hinged rod 55 is hinged at the top of the vertical rod 51, and the hinged rod 55 is hinged with a sliding sleeve 56. The sliding sleeve 56 is slidably connected to a guide rail 57, and the guide rail 57 A cleaning scraper 58 is fixedly connected to the inner wall of the filter bin 1 and the outer wall of the sliding sleeve 56. When the water inlet 101 is equal to the water discharge from the water outlet 104, and more impurities are attached to the liquid filter paper layer 41, causing the filtering effect to be seriously reduced, the wastewater in the filter bin 1 rises. At the same time, the large amount of impurities causes the filter bin 1 to drop under the action of gravity, and then the vertical rod 51 rises relative to the filter bin 1. Under the action of the hinged rod 55, the sliding sleeve 56 is pushed to slide, so that the cleaning scraper 58 contacts the liquid filter paper layer 41. When the liquid filter paper layer 41 rotates, the cleaning scraper 58 cleans the impurities on the liquid filter paper layer 41, thereby automatically cleaning the impurities on the liquid filter paper layer 41. The cleaning method is stable, ensuring the liquid The filter paper layer 41 is continuously filtered. At the same time, during this process, the filter chamber 1 drives the T-bar 542 down to be flush with the bayonet 5101, so that the T-bar 542 can be inserted into the bayonet 5101 to fix the vertical bar 51. During the cleaning process of the liquid filter paper layer 41, the filtering capacity of the liquid filter paper layer 41 increases, the wastewater in the filter chamber 1 decreases, and the weight decreases. At this time, under the resetting action of the elastic telescopic rod 21, the filter chamber 1 is driven to reset. During this process, the filter chamber 1 first drives the vertical bar 51 to rise, stretching the supporting spring to ensure that the cleaning scraper 58 can stably clean the liquid filter paper layer 41 for a period of time. After the impurities in the filter chamber 1 are backwashed and discharged, under the action of the steel rope 543, the T-bar 542 is pulled out of the sleeve rod 541.The limit on the vertical rod 51 is released, so that the support spring pulls the vertical rod 51 downward to reset, and then the cleaning scraper 58 is separated from the liquid filter paper layer 41, and the liquid filter paper layer 41 will not be continuously cleaned, so as to prevent excessive wear of the liquid filter paper layer 41 and increase the service life of the liquid filter paper layer 41.

[0044] Furthermore, in order to be able to scrape off the impurities attached to the cleaning scraper 58 and improve the subsequent cleaning effect, specifically, a swing plate 59 is rotatably connected to the outer wall of the cleaning scraper 58, and the auxiliary cleaning device 6 includes a connecting plate 61, and an extrusion rod 62 is fixedly connected to the outer wall of the connecting plate 61, and the extrusion rod 62 penetrates the mounting plate 3 and is slidably connected to the mounting plate 3, and a cross bar 63 is fixedly connected to the side of the connecting plate 61 away from the extrusion rod 62, and a limited circular rod 64 is fixedly connected to the outer wall of the cross bar 63, and a support frame 65 is fixedly connected to the outer wall of the mounting plate 3, and the support frame 65 is rotatably connected to the swing rod 66, and the end of the swing rod 66 away from the cross rod 63 is rotatably connected to a rotating wheel 67, and a support plate 69 is fixedly connected to the outer wall of the support frame 65, and a sliding block 68 is slidably connected to the outer wall of the mounting plate 3, and the sliding block 68 is elastically connected to the support plate 69 through a reset spring, and the outer wall of the mounting plate 3 is fixedly connected to The elastic telescopic rod 610 is fixedly connected to the connecting plate 61 at its telescopic end. A slanted groove 681 is provided on the side of the sliding block 68 close to the rotating wheel 67. A fixing piece 411 is fixedly connected to the outer wall of the liquid filter paper layer 41. A small cylinder 412 is fixedly connected to the outer wall of the fixing piece 411. When the cleaning scraper 58 moves to the liquid filter paper layer 41, the liquid filter paper layer 41 rotates, which can drive the fixing piece 411 and the small cylinder 412 to rotate, so that the small cylinder 412 passes through the slanted groove 681, so that the sliding block 68 moves, drives the swing rod 66 to rotate, and the swing rod 66 squeezes the limiting round rod 64 to move the cross rod 63, thereby making the squeezing rod 62 drive the swing plate 59 to rotate, so that the swing plate 59 can remove impurities attached to the outer wall of the cleaning scraper 58, thereby improving the cleanliness of the cleaning scraper 58 and thus improving the cleaning effect of the liquid filter paper layer 41.

[0045] Furthermore, in order to further improve the impurity removal effect of the liquid filter paper layer 41, specifically, an arc rod 510 is rotatably connected to the outer wall of the swing plate 59, and the arc rod 510 is elastically connected to the swing plate 59 through a torsion spring. An end of the arc rod 510 away from the swing plate 59 is fixedly connected to an elastic ball 511. During the swinging process of the swing plate 59, the arc rod 510 will be driven to move, so that the arc rod 510 drives the elastic ball 511 to knock on the liquid filter paper layer 41, thereby accelerating the falling off of impurities on the liquid filter paper layer 41, and further improving the cleaning effect of the liquid filter paper layer 41.

[0046] It should be noted that the above-mentioned electrical components are all existing technology products. Technical personnel in this field select, install and complete the circuit debugging work according to the needs of use to ensure that all electrical appliances can work normally. The components are all universal standard parts or components known to technical personnel in this field. Their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods. The applicant does not make specific restrictions here.

[0047] When in use, waste water first enters the filter bin 1 through the water inlet 101. When the waste water is at 2 / 3 of the filter bin 1, the water outlet 104 is opened to drain water, and the water inlet volume of the water inlet 101 is equal to the water outlet volume of the water outlet 104. The waste water is then filtered through the liquid filter paper layer 41 and discharged from the water outlet 104. When a large amount of impurities adhere to the liquid filter paper layer 41, causing the filtering effect to be seriously reduced, the discharge volume of the water outlet 104 is less than the water inlet volume of the water inlet 101, and the waste water in the filter bin 1 rises. At the same time, a large amount of impurities causes the filter bin 1 to drop under the action of gravity, and then the vertical rod 51 rises relative to the filter bin 1. Under the action of the hinged rod 55, the sliding sleeve 56 is pushed to slide, so that the cleaning scraper 58 contacts the liquid filter paper layer 41. Under the rotation of the liquid filter paper layer 41, the cleaning scraper 58 cleans the impurities on the liquid filter paper layer 41, thereby automatically cleaning the impurities on the liquid filter paper layer 41. The cleaning method is stable and ensures that the liquid The filter paper layer 41 is continuously filtered. At the same time, during this process, the filter chamber 1 drives the T-bar 542 to descend to be flush with the bayonet 5101, so that the T-bar 542 can be inserted into the bayonet 5101 to fix the vertical bar 51. During the cleaning process of the liquid filter paper layer 41, the filtering capacity of the liquid filter paper layer 41 increases, the wastewater in the filter chamber 1 decreases, and the weight decreases. At this time, under the resetting action of the elastic telescopic rod 21, the filter chamber 1 is driven to reset. During this process, the filter chamber 1 first drives the vertical bar 51 to rise, stretching the supporting spring to ensure that the cleaning scraper 58 can stably clean the liquid filter paper layer 41 for a period of time. After the impurities in the filter chamber 1 are backwashed and discharged, under the action of the steel rope 543, the T-bar 542 is pulled out of the sleeve rod 541, the limit of the vertical bar 51 is released, and the supporting spring pulls the vertical bar 51 to reset downward, thereby making the cleaning scraper 58 separate from the liquid filter paper layer 41 and will not continuously clean the liquid filter paper layer 41.

[0048] At the same time, the liquid filter paper layer 41 rotates, which can drive the fixing member 411 and the small cylinder 412 to rotate, so that the small cylinder 412 passes through the inclined groove 681, so that the sliding block 68 moves, drives the swing rod 66 to rotate, and the swing rod 66 squeezes the limiting round rod 64 to move the cross bar 63, and then the squeezing rod 62 drives the swing plate 59 to rotate, so that the swing plate 59 can remove the impurities attached to the outer wall of the cleaning scraper 58;

[0049] Meanwhile, when the swing plate 59 swings, the arc rod 510 is driven to move, so that the arc rod 510 drives the elastic ball 511 to knock the liquid filter paper layer 41, thereby accelerating the falling of impurities on the liquid filter paper layer 41.

Claims

1. A PCB wastewater treatment device with filtering function, comprising a filtering chamber (1), characterized in that: A base (2) is provided at the bottom of the filter bin (1); a mounting plate (3) is fixedly connected to the outer wall of the filter bin (1); a filter assembly (4) is rotatably connected to the mounting plate (3); the filter assembly (4) comprises a liquid filter paper layer (41); the liquid filter paper layer (41) is penetrated by a rotating shaft (42) and is fixedly connected to the rotating shaft (42); an impeller (43) is fixedly connected to one end of the rotating shaft (42) away from the liquid filter paper layer (41); a fixing member (411) is fixedly connected to the outer wall of the liquid filter paper layer (41); a small cylinder (412) is fixedly connected to the outer wall of the fixing member (411); a scraping device (5) and an auxiliary cleaning device (6) are provided above the base (2); the scraping device (5) comprises: A vertical rod (51), the vertical rod (51) passing through the inner wall of the filter bin (1) and being slidably connected to the inner wall of the filter bin (1), and a support block (52) being fixedly connected to the bottom of the vertical rod (51); A limit assembly (54), the limit assembly (54) being arranged at the bottom of the filter bin (1), and a hinged rod (55) being hingedly connected to the top of the vertical rod (51); A sliding sleeve (56), the sliding sleeve (56) being hinged to the hinge rod (55), the sliding sleeve (56) being slidably connected to a guide rail (57), and the guide rail (57) being fixedly connected to the inner wall of the filter bin (1); and a cleaning scraper (58), the cleaning scraper (58) being fixedly connected to the outer wall of the sliding sleeve (56), a swing plate (59) being rotatably connected to the outer wall of the cleaning scraper (58), an arc-shaped rod (510) being rotatably connected to the outer wall of the swing plate (59), the arc-shaped rod (510) being elastically connected to the swing plate (59) via a torsion spring, and an elastic ball (511) being fixedly connected to one end of the arc-shaped rod (510) away from the swing plate (59); The auxiliary cleaning device (6) comprises a connecting plate (61), an outer wall of which is fixedly connected a squeezing rod (62), the squeezing rod 62 drives the swing plate 59 to rotate, so that the swing plate 59 can remove impurities attached to the outer wall of the cleaning scraper 58, the squeezing rod (62) penetrates the mounting plate (3) and is slidably connected to the mounting plate (3), a cross bar (63) is fixedly connected to a side of the connecting plate (61) away from the squeezing rod (62), a limiting round rod (64) is fixedly connected to the outer wall of the cross bar (63), a support frame (65) is fixedly connected to the outer wall of the mounting plate (3), and the support frame (6 5) is rotatably connected to a swing rod (66), and one end of the swing rod (66) away from the cross rod (63) is rotatably connected to a rotating wheel (67), a support plate (69) is fixedly connected to the outer wall of the support frame (65), a sliding block (68) is slidably connected to the outer wall of the mounting plate (3), and the sliding block (68) and the support plate (69) are elastically connected via a return spring, an inclined groove (681) is provided on a side of the sliding block (68) close to the rotating wheel (67), and an elastic telescopic rod (610) is fixedly connected to the outer wall of the mounting plate (3), and the telescopic end of the elastic telescopic rod (610) is fixedly connected to the connecting plate (61).

2. The PCB wastewater treatment device with filtering function according to claim 1 is characterized in that: A sealing sleeve (53) is fixedly connected to the bottom of the filter bin (1), and the sealing sleeve (53) is slidably connected to the vertical rod (51).

3. The PCB wastewater treatment device with filtering function according to claim 1 is characterized in that: The limiting assembly (54) comprises a sleeve rod (541), the sleeve rod (541) being fixedly connected to the bottom of the filter bin (1), the sleeve rod (541) being sleeved with a T-rod (542), the T-rod (542) being elastically connected to the inner wall of the sleeve rod (541) via a connecting spring, a steel rope (543) being fixedly connected to the outer wall of the sleeve rod (541), and one end of the steel rope (543) away from the T-rod (542) being fixedly connected to the inner wall of the base (2).

4. The PCB wastewater treatment device with filtering function according to claim 1, characterized in that: A bayonet (5101) is provided on the outer wall of the vertical rod (51), and the size of the bayonet (5101) matches the end of the T rod (542).

5. The PCB wastewater treatment device with filtering function according to claim 1 is characterized in that: A water inlet (101), a backwash outlet (102) and a water outlet (104) are fixedly connected to the outer wall of the filter bin (1), and the backwash outlet (102) is fixedly connected to a water pump (103).

6. The PCB wastewater treatment device with filtering function according to claim 1 is characterized in that: A second elastic telescopic rod (21) is fixedly connected to the inner surface of the base (2), the telescopic end of the second elastic telescopic rod (21) is fixedly connected to the bottom of the base (2), a groove (22) is provided on the inner surface of the base (2), a support spring is embedded in the groove (22), and the top of the support spring is fixedly connected to the support block (52).

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