CN113967382B

CN113967382B - Printing copper powder recovery unit

Info

Publication number: CN113967382B
Application number: CN202111407740.3A
Authority: CN
Inventors: 刘武华; 苏棋
Original assignee: Shenzhen Fuchangfa Circuit Board Co ltd
Current assignee: Shenzhen Fuchangfa Circuit Board Co ltd
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2022-12-06
Anticipated expiration: 2041-11-24
Also published as: CN113967382A

Abstract

The application discloses printing copper powder recovery unit, relate to the technical field that the copper powder was retrieved, it includes the water tank, first water pipe, second water pipe and filter, the inside of water tank is separated and is formed clear water storage chamber and sewage storage chamber, sewage storage chamber is linked together through first water pipe with the filter, clear water storage chamber is linked together through the second water pipe with the filter, be provided with the delivery pump on the first water pipe, the filter includes casing and cartridge filter, the cartridge filter can be dismantled along vertical direction and set up in the inside of casing, the surface of cartridge filter has the infiltration hole that the aperture is less than the copper powder particle diameter, the inside slip of cartridge filter is provided with the push pedal, the week side of push pedal is laminated with the inboard wall of cartridge filter, the inside of casing is provided with the driving piece. According to the filter cartridge, when the filter cartridge is blocked, the driving piece can push the push plate to slide linearly, so that the water seepage hole is communicated; when the clearance copper powder, the cartridge filter can be released with the copper powder to the push pedal to the convenience is cleared up the copper powder.

Description

Printing copper powder recovery unit

Technical Field

The application relates to the technical field of copper powder recovery, in particular to a printing copper powder recovery device.

Background

PCBs are called printed circuit boards, also called printed circuit boards, and are important electronic components, supports and carriers for electronic components. There is the link of grinding its surface through the machine of grinding in PCB production process, and can produce the waste water or the sewage that contains the copper powder in the grinding process, in order to reduce the copper powder extravagant, through filtering waste water to reach the purpose of collecting recycle to the copper powder.

Chinese utility model patent of publication No. CN209564681U among the correlation technique discloses copper powder recovery unit, including water tank and the filter of setting at the water tank top, the inner chamber of water tank is separated and is formed with sewage storage chamber and clear water storage chamber, is provided with the filter bag in the filter, and the top in clear water storage chamber is provided with diatom mud and adds the mouth. When the copper powder recovery device is used, the diatom powder is added into the clean water storage cavity, and then the clean water is pumped into the filter bag, so that the diatom powder is attached to the inner wall of the filter bag, the sewage in the sewage storage cavity is pumped into the filter to collect the copper powder, and the porous property of the diatom powder is utilized, so that the aim of preventing meshes of the filter bag from being blocked is fulfilled.

In view of the above-mentioned related arts, the inventors believe that when the diatom powder is used for auxiliary filtration, a part of fine copper powder is adsorbed in pores of the diatom powder, and thus the copper powder is incompletely recovered after the copper powder and the diatom powder are separated.

Disclosure of Invention

In order to promote the rate of recovery of copper powder, this application provides a printing copper powder recovery unit.

The application provides a printing copper powder recovery unit adopts following technical scheme:

the utility model provides a printing copper powder recovery unit, includes water tank, first water pipe, second water pipe and filter, the inside of water tank is separated and is formed clear water storage chamber and sewage storage chamber, sewage storage chamber with the filter is linked together through first water pipe, clear water storage chamber with the filter is linked together through the second water pipe, be provided with on the first water pipe and be used for carrying sewage to the inside delivery pump of filter, the filter includes the casing and is used for collecting the cartridge filter of copper powder, the cartridge filter can be dismantled along vertical direction and set up in the inside of casing, the surface of cartridge filter has the infiltration hole that the aperture is less than the copper powder particle diameter, the inside of cartridge filter slides and is provided with the push pedal, the week side of push pedal is laminated mutually with the inboard wall of cartridge filter, the inside of casing is provided with and is used for ordering about the push pedal and carries out linear movement's driving piece.

Through adopting above-mentioned technical scheme, the inside in sewage storage chamber is accomodate to sewage that contains the copper powder, when opening the delivery pump, and sewage can be through the inside of first water pipe pump sending to filter, filters the back to sewage through the cartridge filter, and the copper powder can be collected in the inside of cartridge filter, and the water after the filtration is carried to the inside in clear water storage chamber by the second water pipe after passing through the infiltration hole. The push plate is arranged inside the filter cartridge in a sliding mode, on one hand, when the water seepage holes are blocked by copper powder, the push plate is driven to move linearly through the driving piece, the copper powder can be pushed away from the water seepage holes, and therefore the water seepage holes are dredged; on the other hand, when clearing up the inside copper powder of cartridge filter, release the cartridge filter with the copper powder through the push pedal, can be convenient for discharge the copper powder from the cartridge filter completely. In addition, the copper powder need not additionally to use diatom powder to carry out the auxiliary filtration at the in-process of collecting to can promote the copper powder rate of recovery.

Optionally, a flow guide pipe is connected between the shell and the first water pipe, the flow guide pipe is arranged in the vertical direction, the shell is arranged below the flow guide pipe, the driving piece comprises a buoyancy ball, a connecting rod is arranged at the bottom of the buoyancy ball, the connecting rod is arranged in the vertical direction, the bottom end of the connecting rod is fixedly connected with the push plate, a stop valve is arranged at the top end of the flow guide pipe, and a pressure relief assembly is arranged on the flow guide pipe.

Through adopting above-mentioned technical scheme, when the cartridge filter took place to block up, sewage can be full of cartridge filter and honeycomb duct, and the buoyancy ball receives buoyancy effect come-up, can drive push pedal and copper powder and upwards slide to promote the copper powder and slide from the infiltration hole, and then realize carrying out the purpose of mediation to the cartridge filter. In the process of dredging the filter cartridge, sewage can be intercepted through the stop valve, and the pressure relief assembly can break the pressure balance inside the flow guide pipe, so that the pressure inside the flow guide pipe is the same as the pressure outside the flow guide pipe; under the effect of gravity, push pedal and copper powder can slide downwards, and the copper powder can form the disturbance to the sewage in the cartridge filter to make the infiltration hole switch on, thereby can realize the purpose of filter screen drainage.

Optionally, the pressure release subassembly includes the body of rod, presses splenium and packing portion, press the splenium with the packing portion sets up respectively in the both ends of the body of rod, the pressure release hole has been seted up on the honeycomb duct, the body of rod is worn to locate in the pressure release hole, the diameter of the body of rod is less than the aperture in pressure release hole, be provided with the elastic component that is used for ordering about packing portion to block up the pressure release hole on the body of rod.

By adopting the technical scheme, the elastic piece can drive the filling part to block the pressure relief hole in a natural state, so that sewage is prevented from seeping out of the flow guide pipe; when the filter cartridge is required to be drained, the pressing part is pressed down, the pressure relief hole can be conducted, and therefore the pressure inside and outside the guide pipe is the same.

Optionally, the inner wall of the shell is provided with positioning protrusions at intervals, and the end parts of the positioning protrusions are abutted to the outer wall of the filter cartridge.

By adopting the technical scheme, the positioning bulge can position the filter cartridge, so that the filter cartridge is conveniently arranged in the middle of the shell; simultaneously, the location arch can make the outer wall of cartridge filter and the inner wall of casing produce the interval to make things convenient for the filter to carry out the drainage.

Optionally, the aperture of the draft tube is larger than the diameter of the buoyancy ball, the bottom end of the draft tube is provided with a guide part, and a guide groove for guiding the buoyancy ball to slide into the draft tube is arranged inside the guide part.

Through adopting above-mentioned technical scheme, the guide part is used for connecting casing and honeycomb duct, and at the in-process that buoyancy ball rebound, the guide way can guide the buoyancy ball to get into the inside of honeycomb duct to can promote the utilization ratio that the space was collected to the cartridge filter.

Optionally, a first mounting flange is disposed on an outer peripheral side of the guide portion, a second mounting flange is disposed on an outer peripheral side of the housing, a mounting ring is disposed on an outer wall of the filter cartridge, the mounting ring is clamped between the first mounting flange and the second mounting flange, and the first mounting flange and the second mounting flange are fixedly connected through bolt locking.

Through adopting above-mentioned technical scheme, first mounting flange passes through bolt locking with the second mounting flange and fixes linking to each other, makes the connected mode of casing and guide part simple and reliable, and the collar centre gripping is fixed between first mounting flange and second mounting flange, can make things convenient for the dismouting work of filter screen to the convenience is retrieved copper powder.

Optionally, the up end of push pedal is provided with a plurality of reinforcing plate, the reinforcing plate sets up along vertical direction, the lateral wall and the connecting rod of reinforcing plate are fixed continuous.

Through adopting above-mentioned technical scheme, strengthen the version and can strengthen the joint strength of push pedal and connecting rod to promote the stability of push pedal at the in-process that slides.

Optionally, the filter is provided with two sets, and the two sets of filters are communicated with the same first water pipe.

By adopting the technical scheme, two groups of filters are arranged, on one hand, the two groups of filters operate simultaneously, so that the sewage treatment speed can be increased; on the other hand, two sets of filters are independent from each other, and when copper powder needs to be cleaned, one set of filter can be detached independently without stopping operation.

Optionally, the highest position of the first water pipe is connected with an overflow pipe, and one end of the overflow pipe, which is far away from the first water pipe, is communicated with the sewage storage cavity.

Through adopting above-mentioned technical scheme, the cartridge filter takes place to block up or the copper powder collection is full back, and sewage can be followed the overflow pipe and carried back to the sewage storage intracavity to play overvoltage protection's effect, and then promote recovery unit's security and stability.

In summary, the present application includes at least one of the following advantages:

1. by arranging the push plate in the filter cartridge, on one hand, when the filter cartridge is blocked, the interior of the filter cartridge is filled with sewage, and the floating of the buoyancy balls can drive the push plate to slide upwards, so that the copper powder is pushed to move upwards, and water seepage holes in the moving path of the push plate are communicated; after the push pedal stops to move up, press down and to make the pressure release hole switch on according to the splenium to it is the same to make the intraductal external pressure of water conservancy diversion, the push pedal resets under the action of gravity, and then makes sewage can follow the cartridge filter discharge. On the other hand, when needing to clear up the copper powder in the cartridge filter, pulling buoyancy ball can drive the push pedal and slide to make the copper powder release the cartridge filter completely, and then conveniently retrieve the copper powder.

2. Through the setting of honeycomb duct, the bottom of honeycomb duct is provided with the guide part, and when the buoyancy ball floated, the guide part can guide the inside that the buoyancy ball got into the honeycomb duct to can promote the utilization ratio in the collection space of cartridge filter.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is a schematic cross-sectional view of the filter cartridge embodied in the present embodiment;

FIG. 3 is an enlarged schematic view at A in FIG. 2;

fig. 4 is an enlarged schematic view at B in fig. 2.

Description of the reference numerals: 1. a water tank; 11. a clear water storage chamber; 12. a sewage storage chamber; 13. a support frame; 2. a first water pipe; 3. a second water pipe; 4. a delivery pump; 5. a filter; 51. a housing; 511. positioning a projection; 512. a second mounting flange; 52. a filter cartridge; 521. a water seepage hole; 522. a mounting ring; 53. pushing the plate; 6. a drive member; 61. a buoyant ball; 62. a connecting rod; 63. a reinforcing plate; 7. a flow guide pipe; 71. a guide portion; 711. a guide groove; 72. a stop valve; 73. a pressure relief vent; 74. a first mounting flange; 75. connecting holes; 76. a bolt; 8. a pressure relief assembly; 81. a rod body; 82. a pressing part; 83. a filling section; 84. an elastic member; 9. and (4) an overflow pipe.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a printing copper powder recovery device. Referring to fig. 1 and 2, the printed copper powder recovery apparatus includes a water tank 1, a first water pipe 2, a second water pipe 3, a transfer pump 4, and a filter 5. The whole water tank 1 is rectangular, and the internal space of the water tank 1 is divided into a clear water storage cavity 11 and a sewage storage cavity 12; the delivery pump 4 is arranged at the top of the water tank 1, and a water inlet pipe of the delivery pump 4 is communicated with the sewage storage cavity 12 and extends to the bottom of the sewage storage cavity 12. In the embodiment, the first water pipe 2 and the second water pipe 3 are both soft round pipes, and a water outlet pipe of the delivery pump 4 is connected with the first water pipe 2; a support frame 13 is fixedly welded on the top of the water tank 1, the filter 5 is fixedly welded on the top of the support frame 13, and meanwhile, the top end of the filter 5 is connected with one end, far away from the delivery pump 4, of the first water pipe 2; the second water pipe 3 is connected with the bottom end of the filter 5, and one end of the second water pipe 3 far away from the filter 5 is communicated with the clean water storage cavity 11. The conveying pump 4 can pump the sewage in the sewage storage cavity 12 into the filter 5 for filtering, the filter 5 collects the filtered copper powder, and the filtered water is conveyed to the inside of the clean water storage cavity 11 through the second water pipe 3.

In this embodiment, two sets of filters 5 are disposed side by side and connected to the same first water pipe 2, and in other embodiments, several sets of filters 5 may be disposed. Be connected with overflow pipe 9 on first water pipe 2, overflow pipe 9's highest position is higher than first water pipe 2's highest position simultaneously, and overflow pipe 9 keeps away from first water pipe 2's one end and is linked together with sewage storage chamber 12 to when filter 5 blockked up or the copper powder of collection, sewage can carry back sewage storage chamber 12, and then can play overvoltage protection's effect to recovery unit.

Referring to fig. 2 and 3, the filter 5 includes a housing 51 having a cylindrical shape as a whole and a filter cartridge 52 detachably mounted inside the housing 51. In the embodiment, the inside of the filter cartridge 52 is hollow and the top end of the filter cartridge is open, and the surface of the filter cartridge 52 is uniformly provided with water seepage holes 521, the pore diameter of which is smaller than the particle diameter of copper powder; after the wastewater containing copper powder is pumped to the filter 5, the filter cartridge 52 can filter solid impurities such as copper powder and collect the copper powder inside the filter cartridge 52. The inner wall interval of casing 51 is provided with location arch 511, and location arch 511 is the hemisphere structure, and location arch 511 and casing 51 integrative casting shaping form, and when cartridge filter 52 was installed inside casing 51, the tip of location arch 511 was inconsistent with cartridge filter 52's outer wall to make cartridge filter 52 and casing 51 produce certain interval, and then can conveniently carry out the drainage when filtering.

The inside of the filter cartridge 52 is slidably provided with a push plate 53 with a circular horizontal section, and the circumferential side of the push plate 53 is attached to the inner side wall of the filter cartridge 52, so that copper powder can be driven to slide away from the water seepage holes 521 when the push plate 53 slides; the inside of casing 51 is provided with the driving piece 6 that is used for driving push pedal 53 to carry out linear movement, and when cartridge filter 52 takes place to block up, drives push pedal 53 through driving piece 6 and slides to can dredge cartridge filter 52.

The driving member 6 comprises a buoyancy ball 61 and a connecting rod 62, the buoyancy ball 61 in the embodiment is a hollow sphere, the connecting rod 62 is a cylindrical rod arranged along the vertical direction, the buoyancy ball 61 is welded and fixed at the top end of the connecting rod 62, and meanwhile, the bottom end of the connecting rod 62 is welded and fixed with the upper end face of the push plate 53; a plurality of reinforcing plates 63 are welded and fixed on the upper end face of the push plate 53, the reinforcing plates 63 in the embodiment are in a right-angled triangular plate structure, and four reinforcing plates 63 are arrayed with the connecting rod 62 as the center; the reinforcing plate 63 is perpendicular to the upper end face of the push plate 53, and the other right-angle side of the reinforcing plate 63 is fixedly connected with the side wall of the connecting rod 62 in a welding manner, so that the connecting strength between the connecting rod 62 and the push plate 53 can be enhanced.

A guide pipe 7 with the inner diameter larger than the diameter of the buoyancy ball 61 is arranged right above the filter 5, the guide pipe 7 in the embodiment is a hard round pipe, and the guide pipe 7 is arranged in the vertical direction; the bottom end of the draft tube 7 is integrally provided with a guide part 71 which is integrally in a circular truncated cone shape, the bottom end of the guide part 71 is connected with the shell 51, and the top end of the draft tube 7 is communicated with the first water pipe 2. The bottom end of the guide part 71 is provided with a guide groove 711 which is integrally in a circular truncated cone shape, and when the guide part 71 is connected with the shell 51, the buoyancy ball 61 is positioned in the guide groove 711; when the filter cartridge 52 is clogged, the buoyant ball 61 can slide into the interior of the draft tube 7 along the inclined surface of the guide groove 711.

A first mounting flange 74 is integrally formed on the outer peripheral side of the guide portion 71, and the lower end surface of the first mounting flange 74 is flush with the lower end surface of the guide portion 71; a second mounting flange 512 is integrally formed on the outer peripheral side of the housing 51, and the upper end face of the second mounting flange 512 is flush with the upper end face of the housing 51; a mounting ring 522 is integrally formed on the outer peripheral side of the filter cartridge 52, and the mounting ring 522 is sandwiched and fixed between the first mounting flange 74 and the second mounting flange 512; the first mounting flange 74 and the second mounting flange 512 are provided with connecting holes 75 at intervals along the circumferential direction, bolts 76 are arranged in the connecting holes 75, and the guide portion 71 is connected with the housing 51 in a splicing manner and then is locked and fixed by the bolts 76.

The guide pipe 7 is provided with a shutoff valve 72, and the shutoff valve 72 is provided at a position near the top end of the guide pipe 7, and the communication state of the guide pipe 7 can be controlled by the shutoff valve 72. Be provided with pressure release subassembly 8 on the honeycomb duct 7, buoyancy ball 61 come-up and be in the steady state after, closed honeycomb duct 7 through stop valve 72, control pressure release subassembly 8 afterwards for inside and outside of honeycomb duct 7 is in the state that switches on, and push pedal 53 is being can reset at the action of gravity, thereby makes the sewage production disturbance in the cartridge filter 52, and makes infiltration hole 521 switch on, and then can make the smooth drainage of cartridge filter 52.

Referring to fig. 2 and 4, the pressure relief assembly 8 includes a rod body 81, a pressing portion 82, and a filling portion 83. The rod body 81 in this embodiment is a cylindrical rod, the whole of the filling portion 83 is a circular truncated cone, and the surface of the filling portion 83 is provided with a rubber coating; the filling part 83 is integrally formed at one end of the rod 81, and the diameter of the filling part 83 is gradually increased towards the end far away from the rod 81; the pressing part 82 is in a cylindrical block structure, and the pressing part 82 is welded and fixed at one end of the rod body 81 far away from the filling part 83; the side wall of the draft tube 7 is provided with a pressure relief hole 73 with a circular section, the pressure relief hole 73 is positioned at the position of the draft tube 7 close to the top end, and the aperture of the pressure relief hole 73 is larger than the diameter of the rod body 81; the rod 81 is located inside the pressure release hole 73, the filling portion 83 is located inside the draft tube 7, and the pressing portion 82 is located outside the draft tube 7.

The rod 81 is provided with an elastic member 84 for driving the filling portion 83 to block the pressure relief hole 73, the elastic member 84 in this embodiment is a compression spring, the compression spring is sleeved on the rod 81, two ends of the compression spring respectively abut against the pressing portion 82 and the outer side wall of the flow guide tube 7, and the compression spring drives the filling portion 83 to have a tendency of moving outside the flow guide tube 7, so that the filling portion 83 abuts against the hole wall of the pressure relief hole 73, and sewage is prevented from leaking out of the pressure relief hole 73.

The implementation principle of the printing copper powder recovery device in the embodiment of the application is as follows:

when the delivery pump 4 is started, the sewage in the sewage storage cavity 12 can be pumped into the filter 5 for filtering, the filtered copper powder is collected in the filter cylinder 52, and the filtered water is delivered into the clean water storage cavity 11 through the second water pipe 3; when the copper powder collection was full, closed stop valve 72, can dismantle cartridge filter 52, drive push pedal 53 through pulling buoyancy ball 61 and discharge the copper powder from cartridge filter 52 to the convenience is retrieved the copper powder.

If the filter cartridge 52 is blocked, the filter cartridge 52 and the draft tube 7 are gradually filled with sewage, the redundant sewage can flow back to the sewage storage chamber 12 from the overflow tube 9, and meanwhile, the buoyancy ball 61 can drive the push plate 53 to slide upwards under the action of buoyancy, so that the water seepage holes 521 on the moving path of the push plate 53 are communicated; after the buoyancy ball 61 is stabilized, the stop valve 72 is closed, and then the pressing part 82 is pressed down, so that the relief valve can be conducted, the push plate 53 and the copper powder can slide downwards under the action of gravity, and the sewage in the filter cylinder 52 can be disturbed, so that the water seepage hole 521 is conducted; then the pressing part 82 is loosened, and under the action of the compression spring, the filling part 83 can tightly support the pressure relief hole 73 to seal the pressure relief hole 73; finally, the stop valve 72 is opened and the contaminated water can be pumped to the interior of the filter cartridge 52 for filtration, so that the copper powder can continue to be collected.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a printing copper powder recovery unit which characterized in that: the device comprises a water tank (1), a first water pipe (2), a second water pipe (3) and a filter (5), wherein a clear water storage cavity (11) and a sewage storage cavity (12) are formed in the water tank (1) in a separated mode, the sewage storage cavity (12) is communicated with the filter (5) through the first water pipe (2), the clear water storage cavity (11) is communicated with the filter (5) through the second water pipe (3), a conveying pump (4) used for conveying sewage to the inside of the filter (5) is arranged on the first water pipe (2), the filter (5) comprises a shell (51) and a filter cartridge (52) used for collecting copper powder, the filter cartridge (52) is detachably arranged in the shell (51) in the vertical direction, a water seepage hole (521) with the diameter smaller than that of the copper powder is formed in the surface of the filter cartridge (52), a push plate (53) is arranged in the filter cartridge (52) in a sliding mode, the push plate (53) is attached to the inner side wall of the filter cartridge (52), and a driving piece (6) used for driving the push plate (53) to move linearly; a guide pipe (7) is connected between the shell (51) and the first water pipe (2), the guide pipe (7) is arranged along the vertical direction, the shell (51) is arranged below the guide pipe (7), the driving piece (6) comprises a buoyancy ball (61), a connecting rod (62) is arranged at the bottom of the buoyancy ball (61), the connecting rod (62) is arranged along the vertical direction, the bottom end of the connecting rod (62) is fixedly connected with the push plate (53), a stop valve (72) is arranged at the top end of the guide pipe (7), and a pressure relief assembly (8) is arranged on the guide pipe (7);

the pressure relief assembly (8) comprises a rod body (81), a pressing part (82) and a filling part (83), the pressing part (82) and the filling part (83) are respectively arranged at two ends of the rod body (81), a pressure relief hole (73) is formed in the guide pipe (7), the rod body (81) penetrates through the pressure relief hole (73), the diameter of the rod body (81) is smaller than the diameter of the pressure relief hole (73), and an elastic part (84) for driving the filling part (83) to block the pressure relief hole (73) is arranged on the rod body (81);

the inner wall interval of casing (51) is provided with location arch (511), the tip of location arch (511) is inconsistent with the outer wall of cartridge filter (52).

2. The printing copper powder recycling device according to claim 1, wherein: the aperture of honeycomb duct (7) is greater than the diameter of buoyancy ball (61), the bottom of honeycomb duct (7) is provided with guide part (71), the inside of guide part (71) is provided with and is used for guiding buoyancy ball (61) to slide into inside guide way (711) of honeycomb duct (7).

3. The printing copper powder recycling device according to claim 2, characterized in that: the outer periphery of the guide portion (71) is provided with a first mounting flange (74), the outer periphery of the shell (51) is provided with a second mounting flange (512), the outer wall of the filter cylinder (52) is provided with a mounting ring (522), the mounting ring (522) is clamped between the first mounting flange (74) and the second mounting flange (512), and the first mounting flange (74) and the second mounting flange (512) are locked and fixed through bolts (76).

4. The printing copper powder recycling device according to claim 1, characterized in that: the upper end face of push pedal (53) is provided with a plurality of reinforcing plate (63), reinforcing plate (63) set up along vertical direction, the lateral wall and the connecting rod (62) of reinforcing plate (63) are fixed continuous.

5. The printing copper powder recycling device according to any one of claims 1 to 4, characterized in that: the filter (5) is provided with two groups, and the two groups of filters (5) are communicated with the same first water pipe (2).

6. The printing copper powder recycling device according to claim 5, characterized in that: the highest position of first water pipe (2) is connected with overflow pipe (9), the one end that first water pipe (2) was kept away from in overflow pipe (9) is linked together with sewage storage chamber (12).