CN212799920U - Be used for electroplating effluent treatment plant - Google Patents

Abstract

The utility model discloses a be used for electroplating effluent treatment plant belongs to electroplating effluent treatment technical field, including first processing case, mixed processing subassembly, slagging-off subassembly and secondary treatment subassembly, the top at first processing case is erect to the piece that goes up and down, the slagging-off subassembly sets up at first processing incasement, the secondary treatment subassembly includes that second processing case, feeding spare, put medicine spare and waste water screening spare, puts the top that medicine spare set up at second processing case, waste water screening spare sets up at second processing incasement. The utility model discloses driving motor work drives the drive shaft and rotates on the case is handled to the second, and the drive shaft rotates and drives drive cam and rotate, thereby drive wheel rotation drives the screening otter board and produces vibrations through a plurality of coupling spring on the case is handled to the second, prevents to screen the otter board long-time when screening waste water, and the mesh in the screening otter board causes to block up the subsequent use of influence.

Description

Be used for electroplating effluent treatment plant

Technical Field

The utility model relates to an electroplating wastewater treatment technical field especially relates to a be used for electroplating wastewater treatment device.

Background

The sources of the electroplating wastewater are generally: (1) cleaning water for the plated part; (2) a waste plating solution; (3) other waste waters including flushing the floor of the shop, scrubbing the polar plates, aeration equipment condensation, and various bath liquids and drains that "run, spill, drip, leak" due to bath leakage or improper operation and management; (4) the equipment cools the water, and the cooling water is not polluted except for temperature rise in the using process. The quality and quantity of the electroplating wastewater are related to the process conditions, production load, operation management, water using mode and other factors of electroplating production. The electroplating wastewater has complex water quality and difficult control of components, contains heavy metal ions such as chromium, cadmium, nickel, copper, zinc, gold, silver and the like, cyanide and the like, and some of the heavy metal ions belong to highly toxic substances with carcinogenic, teratogenic and mutagenic properties.

The patent with publication number CN206566559U relates to an integrated treatment device for electroplating wastewater treatment, including retort and rose box, the bottom of retort sets up to the toper bottom, the bottom of toper bottom communicates there is the precipitate discharge pipe, disc micropore aerator is installed to the upper portion of compressed air pipeline, transparent glass half-pipe is installed through the opening in upper portion one side of retort, the inside of rose box is provided with the filter screen. This an integrated processing apparatus for electroplating effluent handles, the toper bottom and the precipitate discharge pipeline through the bottom design can in time be with precipitate discharge retort, have avoided heavy metal ion reentrant sewage in, the transparent glass half-pipe of retort one side can be well with the fluid discharge on upper portion in the retort, during fluid further fuses into sewage when avoiding the stirring, has avoided secondary pollution, has improved sewage treatment speed.

However, the above-mentioned devices also have the following problems in use: firstly, when filtering waste water, can not clear up the processing of subsequent waste water of influence to the floated impurity in the waste water, and the second, long-time filtration back causes the jam of filter screen easily, influences the follow-up processing to waste water.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a be used for electroplating effluent treatment plant to solve among the prior art and can not clear up and long-time filtering the floating impurity in the waste water after cause the jam of filter screen easily to influence the follow-up technical problem to the processing of waste water.

The utility model provides an electroplating wastewater treatment device, which comprises a first treatment box, a mixing treatment component, a deslagging component and a secondary treatment component, wherein the first treatment box is vertically arranged, the mixing treatment component is arranged above the first treatment box, the mixing treatment component comprises a lifting part and a mixing part, the lifting part is arranged at the top of the first treatment box, the mixing part is arranged at the lifting end of the lifting part, the deslagging component is arranged in the first treatment box, the deslagging component is in sliding fit with the first treatment box, the secondary treatment component is arranged at the side of the first treatment box, the secondary treatment component comprises a second treatment box, a feeding part, a medicine placing part and a wastewater screening part, the second treatment box is arranged at the side of the first treatment box, and two ends of the feeding part are respectively communicated with the first treatment box and the second treatment box, put the medicine setting and handle the top of case and be linked together with the second at the second, waste water screening spare sets up and handles the incasement and handle case interactive cooperation with the second at the second, be equipped with the drain pipe on the lateral wall of case is handled to the second.

Further, the lift piece includes crane, elevator motor, lifter plate, two lift lead screws and two mount pads, the crane is vertical setting, two the mount pad symmetry sets up at the top of crane, two be equipped with the axis of rotation on the mounting bracket, elevator motor sets up on the crane and elevator motor's output and the one end fixed connection of axis of rotation, two the lift lead screw sets up on the crane and rotates with the crane to this and is connected, every the top of lift lead screw all is equipped with first rotation bevel gear, be equipped with in the axis of rotation with first rotation bevel gear meshing's second rotation bevel gear, every all be equipped with the elevator rather than threaded connection on the lift lead screw, the lifter plate level sets up between two elevator.

Further, the mixing part includes hybrid motor, mixing shaft and a plurality of mixing rod, the vertical setting of the top of lifter plate and hybrid motor's output of hybrid motor is vertical to be set up downwards, the top of mixing shaft and hybrid motor's output fixed connection, a plurality of mixing rod are the circumference and set up on mixing shaft.

Further, the slagging-off subassembly includes the slagging-off otter board, four moving motor and four removal lead screws, four moving motor is the rectangle setting at the top of first processing case, and four vertical settings of removal lead screw just rotate with first processing case in first processing case to be connected, the top of four removal lead screws respectively with four moving motor's output fixed connection, the slagging-off otter board level set up on four removal lead screws and with four removal lead screw threaded connection.

Further, the feeding piece includes inlet pipe, feed pump and discharging pipe, the feed pump sets up between first processing case and second processing case, the both ends of inlet pipe are linked together with the feed pump and first processing case respectively, the both ends of discharging pipe are linked together with the feed pump and second processing case respectively.

Further, put the medicine piece including the mounting bracket, deposit case, ejection of compact cover, rotation motor, put medicine board, head rod and second connecting rod, the vertical setting of mounting bracket is at the top that the case was handled to the second, deposit the case setting on the mounting bracket, ejection of compact cover sets up in the bottom of depositing the case, put medicine board level setting on the ejection of compact cover and with ejection of compact cover sliding fit, rotate the motor setting and handle the top of case and rotate the vertical upwards setting of output of motor at the second, the one end setting of head rod is on the output that rotates the motor, the both ends of second connecting rod rotate with the other end of head rod and put the medicine board respectively and be connected, the bottom of ejection of compact cover is equipped with the play pencil that extends to the second and handles the case.

Further, waste water screening spare is including screening otter board, driving motor, drive shaft, drive cam, drive wheel and a plurality of connecting spring, and a plurality of connecting spring equidistant settings are in the bottom of screening otter board, the screening otter board is handled case sliding fit through a plurality of connecting springs and second, driving motor sets up on the lateral wall of case is handled to the second, the drive shaft level sets up on the case is handled to the second, the drive cam sets up in the drive shaft, the drive wheel setting is in the bottom of screening otter board and corresponding with the drive cam.

Compared with the prior art, the beneficial effects of the utility model reside in that:

one of which, the utility model discloses four removal motor work drive four removal lead screws and rotate and drive the slagging-off otter board and remove, and the slagging-off otter board reciprocates and clears up the waste residue in the waste water, removes the waste residue to the top of first processing case, handles the back at the dross that will float, is favorable to follow-up processing to waste water.

And secondly, the utility model discloses when handling waste water, the impurity of screening otter board in to waste water screens and divides the filtration, and driving motor work drives the drive shaft and rotates on the case is handled to the second, and the drive shaft rotates and drives the drive cam rotation, thereby the drive cam rotates and drives the drive wheel and rotate and drive the screening otter board and handle the case through a plurality of coupling springs and produce vibrations on the second, prevent to screen the otter board when long-time screening waste water, the mesh in the screening otter board causes to block up the subsequent use of influence.

Third, the utility model discloses when handling waste water, elevator motor work drives the axis of rotation and rotates on two mount pads, the axis of rotation rotates and drives two second and rotate bevel gear and rotate, two second rotate bevel gear rotate and drive two lift lead screws and rotate on the crane, two lift lead screws rotate and drive two elevator removals, thereby two elevator removals drive the lifter plate and remove and drive the mixing part at first processing incasement rotation, waste water to first processing incasement mixes, remove the mixing part from first processing incasement after mixing, so that the deposit layering of waste water is handled.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic perspective view of the present invention;

fig. 3 is a top view of the present invention;

fig. 4 is a schematic perspective view of the hybrid processing assembly of the present invention;

FIG. 5 is a schematic perspective view of the deslagging assembly of the present invention;

fig. 6 is a schematic perspective view of the medicine dispensing member of the present invention;

fig. 7 is a schematic view of the three-dimensional structure of the wastewater screening device of the present invention.

Reference numerals:

the device comprises a first treatment box 1, a mixed treatment component 2, a lifting piece 21, a lifting frame 211, a lifting motor 212, a lifting plate 213, a lifting screw rod 214, a mounting seat 215, a first rotating bevel gear 216, a second rotating bevel gear 217, a lifting block 218, a rotating shaft 219, a mixing piece 22, a mixing motor 221, a mixing shaft 222, a mixing rod 223, a deslagging component 3, a deslagging screen plate 31, a moving motor 32, a moving screw rod 33, a secondary treatment component 4, a second treatment box 41, a water discharge pipe 411, a feeding piece 42, a feeding pipe 421, a feeding pump 422, a discharge pipe 423, a medicine discharge piece 43, a mounting frame 431, a storage box 432, a discharge cover 433, a rotating motor 434, a medicine discharge plate 435, a first connecting rod 436, a second connecting rod 437, a medicine discharge pipe, a waste water screening piece 44, a screening screen plate 441, a driving motor 442, a driving shaft 443, a driving cam 444, a driving wheel 445 and a.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention.

The components of the embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 7, an embodiment of the present invention provides an electroplating wastewater treatment apparatus, including a first treatment tank 1, a mixed treatment assembly 2, a slag removal assembly 3 and a secondary treatment assembly 4, wherein the first treatment tank 1 is vertically disposed, the mixed treatment assembly 2 is disposed above the first treatment tank 1, the mixed treatment assembly 2 includes a lifting member 21 and a mixing member 22, the lifting member 21 is disposed on the top of the first treatment tank 1, the mixing member 22 is disposed on the lifting end of the lifting member 21, the slag removal assembly 3 is disposed in the first treatment tank 1, the slag removal assembly 3 is in sliding fit with the first treatment tank 1, the secondary treatment assembly 4 is disposed beside the first treatment tank 1, the secondary treatment assembly 4 includes a second treatment tank 41, a feeding member 42, a chemical discharge member 43 and a wastewater screening member 44, the second treatment tank 41 is disposed beside the first treatment tank 1, the two ends of the feeding piece 42 are respectively communicated with the first treatment box 1 and the second treatment box 41, the medicine placing piece 43 is arranged at the top of the second treatment box 41 and is communicated with the second treatment box 41, the wastewater screening piece 44 is arranged in the second treatment box 41 and is in interactive fit with the second treatment box 41, and the side wall of the second treatment box 41 is provided with a drain pipe 411; after carrying waste water to first treatment tank 1 in, lift 21 work drives mixing element 22 at the rotation of first treatment tank 1, mix the waste water in first treatment tank 1, mix the impurity in the waste water out, filter dross and residue in the waste water through deslagging subassembly 3 work, carry the waste water in first treatment tank 1 to second treatment tank 41 through feeding piece 42 in, put medicine 43 work and carry the medicine of handling waste water to second treatment tank 41 in, handle and purify the medicine in second treatment tank 41, waste water screening piece 44 carries out screening and purification work once more to waste water, drain pipe 411 outwards discharges the waste water after handling.

Specifically, the lifting member 21 includes a lifting frame 211, a lifting motor 212, a lifting plate 213, two lifting screw rods 214 and two mounting seats 215, the lifting frame 211 is vertically arranged, the two mounting seats 215 are symmetrically arranged at the top of the lifting frame 211, the two mounting frames 431 are provided with rotating shafts 219, the lifting motor 212 is arranged on the lifting frame 211, the output end of the lifting motor 212 is fixedly connected with one end of the rotating shaft 219, the two lifting screw rods 214 are arranged on the lifting frame 211 and are rotatably connected with the lifting frame 211, the top of each lifting screw rod 214 is provided with a first rotating bevel gear 216, a second rotating bevel gear 217 meshed with the first rotating bevel gear 216 is arranged on the rotating shaft 219, each lifting screw rod 214 is provided with a lifting block 218 in threaded connection with the lifting screw rod, and the lifting plate 213 is horizontally arranged between the two lifting blocks 218; when handling waste water, elevator motor 212 work drives axis of rotation 219 and rotates on two mount pads 215, axis of rotation 219 rotates and drives two second rotation bevel gears 217 and rotate, two second rotation bevel gears 217 rotate and drive two lift lead screw 214 and rotate on crane 211, two lift lead screw 214 rotate and drive two elevator 218 and remove, thereby two elevator 218 remove and drive elevator 213 and remove and drive mixing part 22 and in the internal rotation of first processing case 1, mix the waste water in first processing case 1, remove mixing part 22 from first processing case 1 after mixing, so that the deposit layering of waste water is handled.

Specifically, the mixing part 22 includes a mixing motor 221, a mixing shaft 222 and a plurality of mixing rods 223, the mixing motor 221 is vertically arranged on the top of the lifting plate 213, the output end of the mixing motor 221 is vertically arranged downwards, the top of the mixing shaft 222 is fixedly connected with the output end of the mixing motor 221, and the plurality of mixing rods 223 are circumferentially arranged on the mixing shaft 222; mixing motor 221 work drives mixing shaft 222 and rotates, and mixing shaft 222 rotates and drives a plurality of dry mixing rods 223 to rotate and carry out mixed treatment to the waste water in first treatment tank 1, mixes each material in the waste water, and the sedimentation layering of the follow-up waste water of being convenient for is handled.

Specifically, the deslagging assembly 3 comprises a deslagging screen plate 31, four moving motors 32 and four moving screw rods 33, wherein the four moving motors 32 are arranged at the top of the first treatment box 1 in a rectangular shape, the four moving screw rods 33 are vertically arranged in the first treatment box 1 and are rotatably connected with the first treatment box 1, the tops of the four moving screw rods 33 are respectively and fixedly connected with the output ends of the four moving motors 32, and the deslagging screen plate 31 is horizontally arranged on the four moving screw rods 33 and is in threaded connection with the four moving screw rods 33; four traveling motors 32 work and drive four and remove lead screw 33 and rotate and drive slagging-off otter board 31 and remove, and slagging-off otter board 31 reciprocates and clears up the waste residue in the waste water, moves the waste residue to the top of first processing case 1.

Specifically, the feeding member 42 comprises a feeding pipe 421, a feeding pump 422 and a discharging pipe 423, the feeding pump 422 is arranged between the first treatment tank 1 and the second treatment tank 41, two ends of the feeding pipe 421 are respectively communicated with the feeding pump 422 and the first treatment tank 1, and two ends of the discharging pipe 423 are respectively communicated with the feeding pump 422 and the second treatment tank 41; the feed pump 422 operates to pump the wastewater in the first treatment tank 1 through the feed pipe 421, and after the pumping, the wastewater is transferred into the second treatment tank 41 through the discharge pipe 423.

Specifically, the medicine discharging part 43 comprises a mounting frame 431, a storage box 432, a discharge cover 433, a rotating motor 434, a medicine discharging plate 435, a first connecting rod 436 and a second connecting rod 437, wherein the mounting frame 431 is vertically arranged at the top of the second processing box 41, the storage box 432 is arranged on the mounting frame 431, the discharge cover 433 is arranged at the bottom of the storage box 432, the medicine discharging plate 435 is horizontally arranged on the discharge cover 433 and is in sliding fit with the discharge cover 433, the rotating motor 434 is arranged at the top of the second processing box 41, the output end of the rotating motor 434 is vertically arranged upwards, one end of the first connecting rod 436 is arranged at the output end of the rotating motor 434, two ends of the second connecting rod 437 are respectively rotatably connected with the other end of the first connecting rod 436 and the medicine discharging plate 435, and a medicine outlet pipe 438 extending to the second processing box 41 is arranged at the bottom of the discharge cover 433; the rotating motor 434 works to drive the first connecting rod 436 to rotate, the first connecting rod 436 rotates to drive the second connecting rod 437 to rotate so as to drive the medicine discharge plate 435 to move on the discharge cover 433, and the medicine discharge plate 435 moves to convey the wastewater treatment medicine stored in the tank 432 into the second treatment tank 41 through the medicine discharge pipe 438, so that the wastewater in the second treatment tank 41 is treated.

Specifically, the wastewater screening member 44 includes a screening mesh plate 441, a driving motor 442, a driving shaft 443, a driving cam 444, a driving wheel 445, and a plurality of connecting springs 446, the plurality of connecting springs 446 are disposed at equal intervals at the bottom of the screening mesh plate 441, the screening mesh plate 441 is slidably engaged with the second treatment tank 41 by the plurality of connecting springs 446, the driving motor 442 is disposed on a sidewall of the second treatment tank 41, the driving shaft 443 is horizontally disposed on the second treatment tank 41, the driving cam 444 is disposed on the driving shaft 443, and the driving wheel 445 is disposed at the bottom of the screening mesh plate 441 and corresponds to the driving cam 444; when the wastewater is treated, the screening screen plate 441 screens and filters impurities in the wastewater, the driving motor 442 works to drive the driving shaft 443 to rotate on the second treatment box 41, the driving shaft 443 rotates to drive the driving cam 444 to rotate, the driving cam 444 rotates to drive the driving wheel 445 to rotate, so that the screening screen plate 441 is driven to vibrate on the second treatment box 41 through the connecting springs 446, and the situation that the meshes in the screening screen plate 441 are blocked to influence subsequent use when the screening screen plate 441 screens the wastewater for a long time is prevented.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (7)

1. The utility model provides a be used for electroplating effluent treatment plant which characterized in that: including first processing case (1), hybrid processing subassembly (2), slagging-off subassembly (3) and secondary processing subassembly (4), first processing case (1) is vertical setting, hybrid processing subassembly (2) set up the top at first processing case (1), hybrid processing subassembly (2) are including lifting member (21) and mixing member (22), lifting member (21) erect at the top of first processing case (1), mixing member (22) set up on the lift end of lifting member (21), slagging-off subassembly (3) set up in first processing case (1) and slagging-off subassembly (3) and first processing case (1) sliding fit, secondary processing subassembly (4) set up the side at first processing case (1), secondary processing subassembly (4) are including second processing case (41), feeding piece (42), put medicine (43) and waste water screening piece (44), case (41) setting is handled at the side of first processing case (1) to the second, the both ends of feeding piece (42) are linked together with first processing case (1) and second processing case (41) respectively, put medicine piece (43) and set up the top of handling case (41) at the second and handle case (41) with the second and be linked together, waste water screening piece (44) set up in second processing case (41) and handle case (41) interactive cooperation with the second, be equipped with drain pipe (411) on the lateral wall of case (41) is handled to the second.

2. An apparatus for treating electroplating wastewater according to claim 1, characterized in that: the lifting piece (21) comprises a lifting frame (211), a lifting motor (212), a lifting plate (213), two lifting screw rods (214) and two mounting bases (215), the lifting frame (211) is vertically arranged, the two mounting bases (215) are symmetrically arranged at the top of the lifting frame (211), rotating shafts (219) are arranged on the two mounting bases (215), the lifting motor (212) is arranged on the lifting frame (211), the output end of the lifting motor (212) is fixedly connected with one end of the rotating shaft (219), the two lifting screw rods (214) are arranged on the lifting frame (211) and are rotatably connected with the lifting frame (211), a first rotating bevel gear (216) is arranged at the top of each lifting screw rod (214), a second rotating bevel gear (217) meshed with the first rotating bevel gear (216) is arranged on the rotating shaft (219), and a lifting block (218) in threaded connection with each lifting screw rod (214) is arranged on each lifting screw rod, the lifting plate (213) is horizontally arranged between the two lifting blocks (218).

3. An apparatus for treating electroplating wastewater according to claim 2, characterized in that: mixing member (22) includes hybrid motor (221), mixing shaft (222) and a plurality of mixing rod (223), the vertical setting of top and hybrid motor (221) of lift board (213) of hybrid motor (221) is vertical to the setting down, the top of mixing shaft (222) and the output fixed connection of hybrid motor (221), a plurality of mixing rod (223) are the circumference and set up on mixing shaft (222).

4. An apparatus for treating electroplating wastewater according to claim 1, characterized in that: slag removal subassembly (3) are including slag removal otter board (31), four moving motor (32) and four removal lead screw (33), four moving motor (32) are the rectangle and set up at the top of first processing case (1), and four vertical settings of removal lead screw (33) just rotate with first processing case (1) in first processing case (1) and are connected, the top of four removal lead screw (33) respectively with the output fixed connection of four moving motor (32), slag removal otter board (31) level sets up on four removal lead screw (33) and with four removal lead screw (33) threaded connection.

5. An apparatus for treating electroplating wastewater according to claim 1, characterized in that: the feeding piece (42) comprises a feeding pipe (421), a feeding pump (422) and a discharging pipe (423), the feeding pump (422) is arranged between the first treatment box (1) and the second treatment box (41), two ends of the feeding pipe (421) are communicated with the feeding pump (422) and the first treatment box (1) respectively, and two ends of the discharging pipe (423) are communicated with the feeding pump (422) and the second treatment box (41) respectively.

6. An apparatus for treating electroplating wastewater according to claim 1, characterized in that: the medicine placing piece (43) comprises an installation frame (431), a storage box (432), a discharging cover (433), a rotating motor (434), a medicine placing plate (435), a first connecting rod (436) and a second connecting rod (437), the installation frame (431) is vertically arranged at the top of the second treatment box (41), the storage box (432) is arranged on the installation frame (431), the discharging cover (433) is arranged at the bottom of the storage box (432), the medicine placing plate (435) is horizontally arranged on the discharging cover (433) and is in sliding fit with the discharging cover (433), the rotating motor (434) is arranged at the top of the second treatment box (41) and is vertically arranged upwards at the output end of the rotating motor (434), one end of the first connecting rod (436) is arranged at the output end of the rotating motor (434), two ends of the second connecting rod (437) are respectively and rotatably connected with the other end of the first connecting rod (436) and the medicine placing plate (435), the bottom of the discharging cover (433) is provided with a medicine outlet pipe (438) which extends to the second treatment box (41).

7. An apparatus for treating electroplating wastewater according to claim 1, characterized in that: the waste water screening member (44) comprises a screening screen plate (441), a driving motor (442), a driving shaft (443), a driving cam (444), a driving wheel (445) and a plurality of connecting springs (446), wherein the plurality of connecting springs (446) are arranged at the bottom of the screening screen plate (441) at equal intervals, the screening screen plate (441) is in sliding fit with a second treatment box (41) through the plurality of connecting springs (446), the driving motor (442) is arranged on the side wall of the second treatment box (41), the driving shaft (443) is horizontally arranged on the second treatment box (41), the driving cam (444) is arranged on the driving shaft (443), and the driving wheel (445) is arranged at the bottom of the screening screen plate (441) and corresponds to the driving cam (444).

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