Electroplating wastewater treatment device and use method thereof

Abstract

The present invention belongs to the technical field of wastewater treatment, and specifically relates to an electroplating wastewater treatment device and a method of using the same, comprising a housing, wherein a flat filter cartridge driven to rotate by a driving mechanism 1 is provided in the housing below a waste liquid inlet pipe; a stirring tank is inserted in the flat filter cartridge; a flushing liquid inlet pipe is also inserted in the flat filter cartridge located below the stirring tank; a driving shaft 1 and a driving shaft 2 respectively connected to a stepping motor are provided in the housing on both sides of the waste liquid inlet pipe; a connecting plate is fixedly connected to the driving shaft 1 and the driving shaft 2, and a scraper is slidably installed in a chute 1 provided at one end of the connecting plate near the flat filter cartridge, and a spring 1 is connected between the scraper and the bottom of the chute 1. The sediment on the flat filter cartridge of the present invention can always be scraped off by the scraper. The present application allows the filtered waste liquid to flow into the stirring tank by inserting the stirring tank into the flat filter cartridge.

Description

Technical Field

[0001] The invention belongs to the technical field of wastewater treatment, and specifically relates to an electroplating wastewater treatment device and a use method thereof. Background Art

[0002] The water quality of electroplating wastewater is complex and its composition is difficult to control. It contains heavy metal ions and cyanide such as chromium, cadmium, nickel, copper, zinc, gold, silver, etc. Some of them are highly toxic substances that are carcinogenic, teratogenic, and mutagenic. In order to ensure that electroplating wastewater does not cause harm to the environment when it is discharged, wastewater treatment equipment is needed to treat the electroplating wastewater.

[0003] The waste liquid needs to be filtered during the treatment process to filter out the precipitates generated during the treatment process. The filtered waste liquid is then mixed with other treatment liquids for further treatment. After a period of use, a large amount of precipitates will accumulate on the surface of the filter device, and it must be cleaned to ensure that the filter device continues to play a filtering role. However, the treatment device in the prior art cannot meet the requirements of not stopping the filtration and cleaning the precipitates. Moreover, in the treatment device in the prior art, the filter device is often completely immersed in the waste liquid. When it is necessary to use a flushing liquid that cannot be mixed with the waste liquid to flush the filter device, the treatment device in the prior art must take out the filter device for flushing, which will undoubtedly stop the filtration and reduce the working efficiency of the equipment. Summary of the invention

[0004] In view of the above-mentioned deficiencies, an object of the present invention is to provide an electroplating wastewater treatment device and a method of using the same.

[0005] The present invention provides the following technical solutions:

[0006] An electroplating wastewater treatment device comprises a box body with a waste liquid inlet pipe at the upper end and a flushing liquid drain pipe at the lower end; the flushing liquid drain pipe is arranged in a funnel shape;

[0007] A horizontal filter cartridge driven to rotate by a first driving mechanism is provided in the box below the waste liquid inlet pipe; a stirring tank with an opening at the upper end is inserted in the horizontal filter cartridge, a stirring blade driven to rotate by a second driving mechanism is rotatably mounted on the stirring tank, and the stirring tank is also connected to a waste liquid drain pipe;

[0008] A flushing liquid inlet pipe is inserted into the horizontal filter cylinder located below the stirring tank, and a spray head with the opening facing downward is installed on the flushing liquid inlet pipe;

[0009] A driving shaft 1 and a driving shaft 2 respectively connected to the stepping motor are provided in the boxes located on both sides of the waste liquid inlet pipe; the driving shaft 1 and the driving shaft 2 are coaxial, and the rotation axes of the driving shaft 1 and the driving shaft 2 are parallel to the rotation axis of the horizontal filter cartridge;

[0010] A connecting plate is fixedly connected to the driving shaft 1 and the driving shaft 2. A scraper is slidably installed in a slide groove 1 provided at one end of the connecting plate close to the horizontal filter cylinder. A spring 1 is connected between the scraper and the bottom of the slide groove 1. When the scraper contacts the filter cylinder, the downward projection of the contact point between the scraper and the horizontal filter cylinder is located in the stirring tank.

[0011] A collecting tank is also provided in the box body at the side of the driving shaft 1 and the driving shaft 2 away from the horizontal filter cartridge, and the collecting tank is connected to a driving mechanism 3 for driving the collecting tank to make a horizontal linear motion in a direction close to or away from the horizontal filter cartridge.

[0012] Flanges are provided on both sides of the connecting plate; and convex rings are provided on both ends of the flat filter cartridge.

[0013] An arc-shaped flow guide plate is inserted in a horizontal filter cylinder located above the stirring tank; the arc-shaped flow guide plate is connected to the stirring tank through a bracket, and through holes are evenly distributed on the arc-shaped flow guide plate.

[0014] Guide plates fixed to the stirring tank are arranged in the flat filter cylinders on both sides of the flushing liquid inlet pipe, and slide groove 2 is arranged at the end of the guide plate, a rubber roller mounting plate is slidably installed in the slide groove 2, and spring 2 is connected between the rubber roller mounting plate and the bottom of the slide groove 2; a rubber roller that abuts against the inner wall of the flat filter cylinder is rotatably installed on the rubber roller mounting plate.

[0015] A brush plate fixedly connected to the stirring tank is arranged in the flat filter cylinder located at the side of the guide plate away from the flushing liquid water inlet pipe, and the brush abuts against the inner wall of the flat filter cylinder.

[0016] An air inlet pipe is inserted into the flat filter cylinder located on the side of the brush plate away from the guide plate, and a plurality of air nozzles are installed on the air inlet pipe with outlets facing the inner side of the flat filter cylinder;

[0017] An air inlet pipe 2 corresponding to the air inlet pipe 1 is arranged in the box body located outside the horizontal filter cartridge, and a plurality of air nozzles 2 with outlets facing the outside of the horizontal filter cartridge are installed on the air inlet pipe 2.

[0018] A square funnel is installed at the water outlet end of the waste liquid inlet pipe; and splash-proof plates fixedly connected to the box body are arranged in the box body located on both sides of the square funnel.

[0019] The scraper comprises a sliding plate connected to a spring and a contact plate detachably connected to the sliding plate via bolts.

[0020] A baffle is fixedly connected in the box below the first drive shaft and the second drive shaft, and a rubber strip is installed at the end of the baffle;

[0021] The rubber strip is in contact with the horizontal filter cartridge, and the downward projection of the contact point between the rubber strip and the horizontal filter cartridge is located in the stirring tank.

[0022] A method for using an electroplating wastewater treatment device comprises the following steps:

[0023] S1, the waste liquid flows out from the waste liquid inlet pipe, and the driving mechanism drives the horizontal filter cartridge to rotate, the waste water flows onto the arc guide plate after being filtered, and then dispersed into the stirring tank; the waste water and the treated liquid in the stirring tank are stirred and mixed by the stirring blades, and then discharged from the waste liquid drain pipe together;

[0024] S2. When the horizontal filter cartridge rotates, the drive shaft first drives the connecting plate connected to it to drive the scraper to contact the horizontal filter cartridge, and the scraper scrapes the sediment outside the horizontal filter cartridge onto the scraper and the connecting plate;

[0025] S3, when it is necessary to clean the sediment on the scraper and the connecting plate, the driving mechanism 3 drives the collecting tank to move below the driving shaft 1, and then the driving shaft 1 drives the connecting plate connected thereto to drive the scraper to rotate, so that the sediment on the scraper and the connecting plate falls into the collecting tank;

[0026] When the driving shaft 1 drives the connecting plate connected to it to drive the scraper to rotate, the driving shaft 2 drives the connecting plate connected to it to drive the scraper to abut against the rotating flat filter cylinder;

[0027] S4, drive the collection tank back to its original position by the driving mechanism 3, drive the connection plate connected to the driving shaft 1 to drive the scraper to move to the bottom of the connection plate connected to the driving shaft 2, and when the sediment on the connection plate connected to the driving shaft 2 needs to be cleaned, the connection plate connected to the driving shaft 1 drives the scraper to abut against the horizontal filter cartridge;

[0028] S5. Let the flushing liquid spray out from the nozzle, and the flushing liquid flows out from the inside to the outside of the flat filter cartridge. The sediment in the filter holes of the flat filter cartridge flows into the flushing liquid drain pipe together with the flushing liquid; the airflow blown out from the air nozzle 1 and the air nozzle 2 will dry the flushing liquid remaining on the flat filter cartridge.

[0029] The beneficial effects of the present invention are as follows: the present application allows the flat filter cartridge to continuously rotate, and uses a scraper driven by drive shaft one and drive shaft two respectively, so that the scraper can contact the flat filter cartridge when the flat filter cartridge rotates, thereby scraping off the sediment on the outside of the flat filter cartridge. When it is necessary to clean the sediment on the scraper, the scraper can be rotated, and when one of the scrapers rotates, the other scraper can be contacted with the flat filter cartridge, so that the sediment on the flat filter cartridge can always be scraped off by the scraper. The present application allows the filtered waste liquid to flow into the stirring tank by inserting the stirring tank into the flat filter cartridge. The present application allows the flat filter cartridge to continuously play a filtering role by arranging a nozzle and air nozzle one and air nozzle two, so that the flat filter cartridge can also be rinsed with a rinse liquid, and the rinse liquid is blown dry by air nozzle one and air nozzle two, thereby preventing the rinse liquid remaining on the flat filter cartridge from mixing with the waste liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the connection plate installation;

[0032] Figure 3 yes Figure 1 Enlarged view of point A in the middle;

[0033] Figure 4 yes Figure 1 Enlarged view of point B in the middle.

[0034] Marked in the figure are: box body 101, flushing liquid drain pipe 102, waste liquid water inlet pipe 103, square funnel 104, splash-proof plate 105, baffle 106, rubber strip 107, drive mechanism three 201, collecting tank 202, drive shaft one 203, drive shaft two 204, connecting plate 205, flange 206, contact plate 207, spring one 208, sliding plate 209, flat filter cartridge 301, arc guide plate 302, bracket 303, stirring tank 304, drive mechanism two 305, convex ring 306, drive mechanism one 307, air inlet pipe two 308, air inlet pipe one 309, guide plate 310, spring two 311, rubber roller mounting plate 312, rubber roller 313, flushing liquid water inlet pipe 314, nozzle 315, brush plate 316, waste liquid drain pipe 317. DETAILED DESCRIPTION

[0035] Embodiment 1

[0036] like Figure 1-4 As shown, an electroplating wastewater treatment device includes a box 101 with a waste liquid inlet pipe 103 at the upper end and a rinse liquid drain pipe 102 at the lower end. The rinse liquid drain pipe 102 is arranged in a funnel shape so as to receive rinse liquid flowing in a larger range.

[0037] A horizontal filter cartridge 301 driven to rotate by a driving mechanism 307 is provided in the box 101 below the waste liquid inlet pipe 103. Specifically, the driving mechanism 307 includes a motor, a motor shaft of the motor is connected to a rotating shaft via a flange, and the rotating shaft is connected to one end of the horizontal filter cartridge 301.

[0038] A stirring tank 304 with an opening at the upper end is inserted into the horizontal filter cartridge 301, and a stirring blade driven to rotate by a driving mechanism 2 305 is rotatably installed on the stirring tank 304. The driving mechanism 2 305 includes a motor, and the motor shaft of the motor is connected to a rotating shaft through a flange. The rotating shaft extends into the stirring tank 304 and is connected to the stirring blade. The stirring tank 304 is also connected to a waste liquid drain pipe 317. The waste liquid left from the waste liquid inlet pipe 103 will be poured onto the upper end of the horizontal filter cartridge 301, and then the filtered waste liquid will flow into the stirring tank 304. After the waste liquid flows into the stirring tank 304, it will be mixed with the treated liquid in the stirring tank 304 under the stirring action of the stirring blade, so that the filtered waste liquid is further processed. The treated liquid will be discharged from the waste liquid drain pipe 317.

[0039] A driving shaft 1 203 and a driving shaft 2 204 connected to a stepper motor are provided in the box 101 on both sides of the waste liquid inlet pipe 103. The driving shaft 1 203 and the driving shaft 2 204 are driven to rotate by the connected stepper motors. The driving shaft 1 203 and the driving shaft 2 204 are coaxial, and the rotation axis of the driving shaft 1 203 and the driving shaft 2 204 is parallel to the rotation axis of the horizontal filter cartridge 301.

[0040] The drive shaft 1 203 and the drive shaft 2 204 are both fixedly connected with a connecting plate 205. A scraper is slidably installed in a chute 1 provided at one end of the horizontal filter cartridge 301 near the connecting plate 205. A spring 1 208 is connected between the scraper and the bottom of the chute 1. When the scraper contacts the filter cartridge 301, the downward projection of the contact point between the scraper and the horizontal filter cartridge 301 is located in the stirring tank 304. When the scraper is driven to contact the filter cartridge 301, the spring 1 208 begins to be compressed. When the scraper can be tightly pressed against the horizontal filter cartridge 301 under the elastic force of the spring 1 208, the scraper is no longer driven to rotate. At this time, the horizontal filter cartridge 301 rotates while filtering the waste liquid, and the scraper can scrape off the sediment on the outside of the horizontal filter cartridge 301. The scraped sediment will be temporarily stored on the scraper and the connecting plate 205.

[0041] A collecting tank 202 is also provided in the box 101 on the side of the driving shaft 1 203 and the driving shaft 2 204 away from the horizontal filter cartridge 301. The collecting tank 202 is connected to a driving mechanism 3 201 for driving the collecting tank 202 to make a lateral linear motion in a direction close to or away from the horizontal filter cartridge 301. The driving mechanism 3 201 can be a linear slide or a cylinder.

[0042] When it is necessary to clean the sediment temporarily stored on the scraper and the connecting plate 205, the scraper and the connecting plate 205 storing the sediment are driven to rotate, and the other scraper and the connecting plate 205 are rotated at the same time until they are against the horizontal filter cylinder 301. In this way, when the scraper storing the sediment temporarily is turned over, the other scraper can still scrape off the sediment on the horizontal filter cylinder 301.

[0043] When the scraper and connecting plate 205 temporarily storing sediment rotates to above the collecting tank 202, the sediment will fall into the collecting tank 202, and then the collecting tank 202 will be driven back by the driving mechanism three 201, thereby avoiding hindering the scraper and connecting plate 205 from continuing to rotate to below the scraper and connecting plate 205 that now plays a scraping role.

[0044] A flushing liquid inlet pipe 314 is inserted into the horizontal filter cartridge 301 located below the stirring tank 304, and a nozzle 315 with its opening facing downward is installed on the flushing liquid inlet pipe 314. An air inlet pipe 1 309 is inserted into the horizontal filter cartridge 301 located on the side of the brush plate 316 away from the guide plate 310, and a plurality of air nozzles 1 with their outlets facing the inside of the horizontal filter cartridge 301 are installed on the air inlet pipe 1 309. An air inlet pipe 2 308 corresponding to the air inlet pipe 1 309 is installed in the box body 101 located outside the horizontal filter cartridge 301, and a plurality of air nozzles 2 with their outlets facing the outside of the horizontal filter cartridge 301 are installed on the air inlet pipe 2 308.

[0045] The flat filter cartridge 301 from which the sediment has been scraped off continues to rotate, and the nozzle 315 sprays out the flushing liquid, thereby flushing out the sediment trapped in the filter hole from the inside to the outside of the flat filter cartridge 301. The washed sediment will flow into the flushing liquid drain pipe 102 along with the flushing liquid. By providing the air nozzle 1 and the air nozzle 2, the flushing liquid can be blown dry by the air nozzle 1 and the air nozzle 2, thereby preventing the flushing liquid remaining on the flat filter cartridge from mixing with the waste liquid.

[0046] By symmetrically arranging two groups of scrapers and two groups of air nozzles 1 and 2, the device can be used when the horizontal filter cartridge 301 is rotated forwards or reversely.

[0047] Based on the above embodiments, the present application also proposes a method for using an electroplating wastewater treatment device, which is characterized by comprising the following steps:

[0048] S1, the wastewater to be treated flows out from the waste liquid inlet pipe 103, and the driving mechanism 1 307 drives the horizontal filter cartridge 301 to rotate, and the wastewater flows onto the arc guide plate 302 after being filtered, and then dispersed and flows into the stirring tank 304; the wastewater and the treated liquid in the stirring tank 304 are stirred and mixed by the stirring blades, and then discharged from the waste liquid drain pipe 317 together;

[0049] S2, when the horizontal filter cartridge 301 rotates, the drive shaft 1 203 drives the connecting plate 205 connected thereto to drive the scraper to contact the horizontal filter cartridge 301, and the scraper scrapes the sediment outside the horizontal filter cartridge 301 onto the scraper and the connecting plate 205;

[0050] S3, when the sediment on the scraper and the connecting plate 205 needs to be cleaned, the driving mechanism 3 201 drives the collecting tank 202 to move below the driving shaft 1 203, and then the driving shaft 1 203 drives the connecting plate 205 connected thereto to drive the scraper to rotate, so that the sediment on the scraper and the connecting plate 205 falls into the collecting tank 202;

[0051] When the driving shaft 1 203 drives the connecting plate 205 connected thereto to drive the scraper to rotate, the driving shaft 204 drives the connecting plate 205 connected thereto to drive the scraper to abut against the rotating flat filter cartridge 301;

[0052] S4, drive mechanism 3 201 drives collection tank 202 to return to its original position, drive shaft 1 203 drives connecting plate 205 connected thereto to drive scraper to move below connecting plate 205 connected to drive shaft 204, and when sediment on connecting plate 205 connected to drive shaft 204 needs to be cleaned, connecting plate 205 connected to drive shaft 1 203 drives scraper to abut against horizontal filter cartridge 301;

[0053] S5. Let the flushing liquid be sprayed out from the nozzle 315. The flushing liquid flows out from the inside to the outside of the horizontal filter cartridge 301. The sediment in the filter holes of the horizontal filter cartridge 301 flows into the flushing liquid drain pipe 102 together with the flushing liquid. The airflow blown out from the air nozzle 1 and the air nozzle 2 dries the flushing liquid remaining on the horizontal filter cartridge 301.

[0054] Embodiment 2

[0055] Further, flanges 206 are provided on both sides of the connecting plate 205, and convex rings 306 are provided on both ends of the horizontal filter cartridge 301. By providing the flanges 206, it is possible to prevent waste liquid and sediment from flowing to other locations of the housing 101. By providing the convex rings 306, it is possible to prevent waste liquid from flowing to other locations of the housing 101.

[0056] Embodiment 3

[0057] Furthermore, an arc-shaped guide plate 302 is inserted into the horizontal filter cartridge 301 located above the stirring tank 304. The arc-shaped guide plate 302 is connected to the stirring tank 304 through a bracket 303, and through holes are evenly distributed on the arc-shaped guide plate 302. By providing the arc-shaped guide plate 302, the waste liquid flowing down can flow into the stirring tank 304 as evenly as possible, so that the waste liquid and the treated liquid are fully mixed under the action of the stirring blades.

[0058] Embodiment 4

[0059] Furthermore, guide plates 310 fixedly connected to the stirring tank 304 are provided in the flat filter cartridges 301 located on both sides of the flushing liquid inlet pipe 314, and a second slide groove is provided at the end of the guide plate 310, a rubber roller mounting plate 312 is slidably mounted in the second slide groove, and a second spring 311 is connected between the rubber roller mounting plate 312 and the bottom of the second slide groove. A rubber roller 313 is rotatably mounted on the rubber roller mounting plate 312 to abut against the inner wall of the flat filter cartridge 301. Through the guide plates 310 and the rubber roller mounting plate 312, and the rubber roller 313 abuts against the inner side of the flat filter cartridge 301 under the elastic force of the second spring 311, a flushing cavity can be formed, so that the flushing liquid can be prevented from splashing when the nozzle 315 sprays the flushing liquid.

[0060] A brush plate 316 fixedly connected to the stirring tank 304 is disposed in the flat filter cartridge 301 on the side of the guide plate 310 away from the flushing liquid inlet pipe 314, and the brush abuts against the inner wall of the flat filter cartridge 301. The brush can block foreign matter from entering the flat filter cartridge 301, thereby preventing the foreign matter from getting stuck in the column rubber roller 313.

[0061] Embodiment 5

[0062] Furthermore, a square funnel 104 is installed at the outlet end of the waste liquid inlet pipe 103, and splash-proof plates 105 fixedly connected to the box body 101 are provided in the box body 101 on both sides of the square funnel 104. By providing the square funnel 104, the waste liquid can flow onto the horizontal filter cartridge 301 as much as possible. By providing the splash-proof plates 105, the waste liquid can be prevented from splashing to other positions of the box body 101.

[0063] Embodiment 6

[0064] Further, the scraper includes a sliding plate 209 connected to the spring 208 and a contact plate 207 detachably connected to the sliding plate 209 by bolts. The contact plate 207 is detachably connected to the sliding plate 209, so that it is convenient to replace the contact plate 207 when it is damaged.

[0065] Embodiment 7

[0066] Furthermore, a baffle 106 is fixedly connected in the box body 101 below the driving shaft 1 203 and the driving shaft 2 204, and a rubber strip 107 is installed at the end of the baffle 106. The rubber strip 107 contacts the horizontal filter cartridge 301, and the downward projection of the contact point between the rubber strip 107 and the horizontal filter cartridge 301 is located in the stirring tank 304.

[0067] By providing the baffle 106 and making the rubber strip 107 contact the flat filter cartridge 301, a portion of the waste liquid and sediment not blocked by the scraper can be caught. By making the downward projection of the contact point between the rubber strip 107 and the flat filter cartridge 301 be located in the stirring tank 304, the blocked waste liquid can flow into the stirring tank 304 after being filtered by the flat filter cartridge 301.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electroplating wastewater treatment device, comprising a box (101) having a waste liquid inlet pipe (103) at the upper end and a flushing liquid drain pipe (102) at the lower end; characterized in that: A horizontal filter cartridge (301) driven to rotate by a first drive mechanism (307) is provided in the box body (101) below the waste liquid inlet pipe (103); a stirring tank (304) with an opening at the upper end is inserted in the horizontal filter cartridge (301); a stirring blade driven to rotate by a second drive mechanism (305) is rotatably mounted on the stirring tank (304); and the stirring tank (304) is also connected to a waste liquid drain pipe (317); A flushing liquid inlet pipe (314) is inserted into the horizontal filter cartridge (301) located below the stirring tank (304), and a spray head (315) with an opening facing downward is installed on the flushing liquid inlet pipe (314); A driving shaft 1 (203) and a driving shaft 2 (204) respectively connected to a stepping motor are provided in the box body (101) located on both sides of the waste liquid inlet pipe (103); the driving shaft 1 (203) and the driving shaft 2 (204) are coaxial, and the rotation axes of the driving shaft 1 (203) and the driving shaft 2 (204) are parallel to the rotation axis of the horizontal filter cartridge (301); A connecting plate (205) is fixedly connected to both the first drive shaft (203) and the second drive shaft (204); a scraper is slidably mounted in a slide groove (1) provided at one end of the connecting plate (205) close to the horizontal filter cartridge (301); a spring (208) is connected between the scraper and the bottom of the slide groove (1); when the scraper is in contact with the filter cartridge (301), the downward projection of the contact point between the scraper and the horizontal filter cartridge (301) is located in the stirring tank (304); A collecting tank (202) is also provided in the box body (101) on the side of the driving shaft 1 (203) and the driving shaft 2 (204) facing away from the horizontal filter cartridge (301), and the collecting tank (202) is connected to a driving mechanism 3 (201) for driving the collecting tank (202) to perform a transverse linear motion in a direction approaching or moving away from the horizontal filter cartridge (301); Guide plates (310) fixedly connected to the stirring tank (304) are provided in the flat filter cartridges (301) located on both sides of the flushing liquid inlet pipe (314); a second slide groove is provided at the end of the guide plate (310); a rubber roller mounting plate (312) is slidably mounted in the second slide groove; a second spring (311) is connected between the rubber roller mounting plate (312) and the bottom of the second slide groove; a rubber roller (313) is rotatably mounted on the rubber roller mounting plate (312) and abuts against the inner wall of the flat filter cartridge (301).

2. The electroplating wastewater treatment device according to claim 1, characterized in that: Flanges (206) are provided on both sides of the connection plate (205); and convex rings (306) are provided on both ends of the horizontal filter cartridge (301).

3. The electroplating wastewater treatment device according to claim 1, characterized in that: An arc-shaped guide plate (302) is inserted into a horizontal filter cartridge (301) located above the stirring tank (304); the arc-shaped guide plate (302) is connected to the stirring tank (304) via a bracket (303), and through holes are evenly distributed on the arc-shaped guide plate (302).

4. The electroplating wastewater treatment device according to claim 1, characterized in that: A brush plate (316) fixedly connected to the stirring tank (304) is provided in the flat filter cartridge (301) located on the side of the guide plate (310) away from the flushing liquid inlet pipe (314), and the brush abuts against the inner wall of the flat filter cartridge (301).

5. The electroplating wastewater treatment device according to claim 4, characterized in that: An air inlet pipe (309) is inserted into a flat filter cartridge (301) located on the side of the brush plate (316) away from the guide plate (310), and a plurality of air nozzles (309) are installed on the air inlet pipe (309) with outlets facing the inside of the flat filter cartridge (301); An air intake pipe 2 (308) corresponding to the air intake pipe 1 (309) is arranged in the box body (101) located outside the horizontal filter cartridge (301), and air intake pipe 2 (308) is provided with a plurality of air nozzles 2 with outlets facing the outside of the horizontal filter cartridge (301).

6. The electroplating wastewater treatment device according to claim 1, characterized in that: A square funnel (104) is installed at the water outlet end of the waste liquid inlet pipe (103); splash-proof plates (105) fixedly connected to the box body (101) are provided in the box body (101) located on both sides of the square funnel (104).

7. The electroplating wastewater treatment device according to any one of claims 1 to 6, characterized in that: The scraper comprises a sliding plate (209) connected to a spring 1 (208) and a contact plate (207) detachably connected to the sliding plate (209) via bolts.

8. The electroplating wastewater treatment device according to claim 7, characterized in that: A baffle (106) is fixedly connected in the box body (101) below the first drive shaft (203) and the second drive shaft (204), and a rubber strip (107) is installed at the end of the baffle (106); The rubber strip (107) is in contact with the horizontal filter cartridge (301), and the downward projection of the contact point between the rubber strip (107) and the horizontal filter cartridge (301) is located in the stirring tank (304).

9. A method for using the electroplating wastewater treatment device as claimed in claim 8, characterized in that: The following steps are involved: S1, allowing the waste liquid to flow out from the waste liquid inlet pipe (103), and causing the driving mechanism 1 (307) to drive the horizontal filter cartridge (301) to rotate, so that the waste water flows onto the arc-shaped guide plate (302) after being filtered, and then dispersed and flows into the stirring tank (304); the waste water and the treated liquid in the stirring tank (304) are stirred and mixed by the stirring blades, and then discharged together from the waste liquid drain pipe (317); S2, when the horizontal filter cartridge (301) rotates, the drive shaft 1 (203) drives the connecting plate (205) connected thereto to drive the scraper to contact the horizontal filter cartridge (301), and the scraper scrapes the sediment on the outside of the horizontal filter cartridge (301) onto the scraper and the connecting plate (205); S3, when it is necessary to clean the sediment on the scraper and the connecting plate (205), the driving mechanism three (201) drives the collecting tank (202) to move below the driving shaft one (203), and then the driving shaft one (203) drives the connecting plate (205) connected thereto to drive the scraper to rotate, so that the sediment on the scraper and the connecting plate (205) falls into the collecting tank (202); When the driving shaft 1 (203) drives the connecting plate (205) connected thereto to drive the scraper to rotate, the driving shaft 2 (204) drives the connecting plate (205) connected thereto to drive the scraper to abut against the rotating horizontal filter cartridge (301); S4, driving the third driving mechanism (201) to drive the collecting tank (202) to return to its original position, driving the first driving shaft (203) to drive the connecting plate (205) connected thereto to drive the scraper to move below the connecting plate (205) connected to the second driving shaft (204); when sediment on the connecting plate (205) connected to the second driving shaft (204) needs to be cleaned, the connecting plate (205) connected to the first driving shaft (203) drives the scraper to abut against the horizontal filter cartridge (301); S5. The flushing liquid is sprayed out from the nozzle (315), and the flushing liquid flows out from the inside to the outside of the horizontal filter cartridge (301). The sediment in the filter holes of the horizontal filter cartridge (301) flows into the flushing liquid drain pipe (102) together with the flushing liquid. The airflow blown out from the air nozzle 1 and the air nozzle 2 dries the flushing liquid remaining on the horizontal filter cartridge (301).

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