CN109704487B

CN109704487B - Energy-efficient type RO electrophoresis recovery system

Info

Publication number: CN109704487B
Application number: CN201910155565.XA
Authority: CN
Inventors: 陈庆华; 郝向英; 袁国栋; 陈英俊; 李境多
Original assignee: Zhaoqing University
Current assignee: Zhaoqing Songde Information Technology Co.,Ltd.
Priority date: 2019-03-01
Filing date: 2019-03-01
Publication date: 2021-08-06
Anticipated expiration: 2039-03-01
Also published as: JP2020138190A; JP6616549B1; CN109704487A

Abstract

The invention belongs to the technical field of electrophoresis, and particularly relates to an efficient energy-saving RO (reverse osmosis) electrophoresis recovery system which comprises a box body, a first plate, a filter, a pretreatment unit, a lifting unit, an ultrafiltration membrane filter core, a cleaning unit and a controller, wherein the first plate is connected with the first plate; according to the invention, acidic and alkaline substances in the electrophoresis wastewater are precipitated through the pretreatment unit, and the electrophoresis wastewater to be filtered is neutral, so that the acidic and alkaline substances in the electrophoresis wastewater are prevented from damaging a filter and a ultrafiltration membrane filter element, the service life of a recovery system is prolonged, and the later maintenance cost of the recovery system is reduced; simultaneously, through the mutually supporting between lift unit and cleaning unit for cleaning unit is automatic and real-time clears up the ultrafiltration membrane filter core, avoids demolising ultrafiltration membrane filter core from recovery system, makes the operation inconvenient, and has guaranteed electrophoresis waste water recovery's continuity, has improved electrophoresis recovery system's efficiency.

Description

Energy-efficient type RO electrophoresis recovery system

Technical Field

The invention belongs to the technical field of electrophoresis, and particularly relates to an efficient energy-saving RO electrophoresis recovery system.

Background

Since the development and industrial application of the electrophoretic coating technology in the sixties of the twentieth century, the electrophoretic coating technology has the advantages of excellent characteristics, water-based environmental protection, high corrosion resistance, high swimming transmittance, high coulombic efficiency, insolubility of a coated object, stable bath solution, high automation degree and the like, is widely applied to the industries such as the automobile industry, the motorcycle industry, household appliances, instruments, military industry, building materials, light decorative hardware industry, daily use and the like, gradually replaces the conventional surface coating technology, and becomes one of the most important coating technical modes in the world at present.

In the automobile coating production, the electrophoretic coating can realize mechanized and automatic continuous operation due to high construction speed, and the formed paint film is uniform and strong in adhesive force, and can obtain a uniform, flat and smooth paint film on the parts which are difficult to coat or are not well coated by a common coating method, thereby being widely applied. In the production process of automobiles, when the electrophoretic primer is applied to a carriage, an electrophoresis tank is generally used, the electrophoresis tank is filled with electrophoretic paint made of pigment resin, solvent and neutralizer, and is communicated with a bag filter through a pipeline so as to filter the electrophoretic paint, remove granular impurities contained in the electrophoretic paint and ensure the appearance quality of a paint film of the electrophoretic paint; meanwhile, after the automobile coating is finished, the electrophoretic paint in the electrophoresis tank needs to be recovered.

On one hand, as the waste water generated by electrophoresis contains other acidic and alkaline substances besides electrophoretic paint, the acidic and alkaline substances in the electrophoresis waste water can damage a filter and a ultrafiltration membrane filter element under the condition that the electrophoresis waste water is not pretreated, so that the service life of the recovery device is shortened; on the other hand, when the ultrafiltration membrane filter element is used for filtering the electrophoretic paint, the ultrafiltration membrane filter element needs to be cleaned after being used for a period of time, and the ultrafiltration membrane filter element in the device needs to be detached from the device after being used, and the ultrafiltration membrane filter element is manually cleaned, so that the operation is inconvenient, and the electrophoresis recovery efficiency is reduced; so that the technical solution is limited.

Disclosure of Invention

In order to make up the defects of the prior art, the problems that acidic and alkaline substances in the electrophoresis wastewater damage a filter and an ultrafiltration membrane filter core and the ultrafiltration membrane filter core is inconvenient to clean are solved; the invention provides an efficient energy-saving RO electrophoresis recovery system.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to an efficient energy-saving RO electrophoresis recovery system, which comprises a box body, a first plate, a filter, a pretreatment unit, a lifting unit, an ultrafiltration membrane filter core and a controller, wherein the first plate is arranged on the box body; the controller is used for controlling the work of the recovery system; the side wall of the box body is provided with a water inlet which is communicated with the electrophoresis tank through a pipeline, and the bottom of the box body is provided with a water outlet; two ends of the first plate are fixedly connected to the side wall of the box body, a through hole is formed in the middle of the first plate, and the through hole is controlled to be opened and closed through an electromagnetic switch; the pretreatment unit is positioned on the upper side of the first plate and used for reacting acidic and alkaline substances in the electrophoresis wastewater, and comprises a water tank, an acid liquid tank, an alkaline liquid tank, a speed sensor, a servo motor, a first shaft, a first bevel gear, a second shaft, a first cam, a first disc and a disc spring; the water tank, the acid liquid tank and the alkali liquid tank are arranged at the top of the tank body and are communicated with the tank body, and control valves are arranged at the communicated positions; the speed sensor is used for sensing the rotating speed of the servo motor; one end of the first shaft is rotatably arranged on the side wall of the box body, the other end of the first shaft is fixedly connected with a servo motor through a bearing, and the servo motor is arranged on the outer wall of the box body; the first disc, the second shaft and the first bevel gear are respectively provided with a group of openings, the first bevel gear and the first disc are sleeved on the outer ring of the first shaft, the first disc slides relative to the first shaft, and adjacent first discs are connected through a disc spring; the second shaft penetrates through the first shaft; the first cam and the second bevel gear are respectively sleeved on the two second shafts, and the first bevel gear is in meshing transmission with the second bevel gear; the filter is positioned at the lower side of the first plate, two ends of the filter are in contact with the side wall of the box body, the filter is fixed through a group of lifting units, the group of lifting units are all positioned on the same horizontal plane, the filter moves correspondingly through the movement of the group of lifting units in the vertical direction, and the filter comprises a fine sand filter and an activated carbon filter; the fine sand filter consists of a first anti-seepage sealing plate and a fine sand filtering layer, and the fine sand filtering layer is positioned between the two first anti-seepage sealing plates; the activated carbon filter consists of a second anti-seepage sealing plate and an activated carbon filtering layer, and the activated carbon filtering layer is positioned between the two second anti-seepage sealing plates; the ultrafiltration membrane filter element is positioned at the lower side of the filter, the ultrafiltration membrane filter element is clamped on the side wall of the box body, a sealing ring is arranged at the clamping position, and the ultrafiltration membrane filter element is used for separating electrophoresis wastewater from electrophoresis paint; when the electrophoresis recovery system is used, firstly, electrophoresis wastewater is input into the box body from the electrophoresis tank, and at the moment, the control valve at the water tank is controlled by the controller, so that the water tank sprays water into the box body to wash the box body; after washing for six minutes, driving a servo motor, and driving a first shaft, a second shaft, a first disc and a first bevel gear to rotate through the servo motor to stir the electrophoresis wastewater; when the speed sensor senses that the rotating speed of the servo motor is negative, the speed is kept for six minutes, and the controller controls a control valve of the acid liquid tank to spray acid liquid into the tank body so as to precipitate alkaline substances in the electrophoresis wastewater; after six minutes, namely after the alkaline substances in the electrophoresis wastewater are completely precipitated, the rotating speed of the servo motor is continuously increased; when the speed sensor senses that the rotating speed of the servo motor is negative, the speed is maintained for six minutes, the controller controls a control valve of the alkaline tank, alkaline liquid is sprayed into the box body, and acidic substances in the electrophoresis wastewater are precipitated; when acid and alkaline substances in the electrophoresis wastewater are reacted, the first bevel gear and the second bevel gear are in meshing transmission, so that the second shaft rotates relative to the first shaft, and the first cam rotates; when the first cam presses the first disc, the first discs move towards one side close to each other, the two first discs press the disc spring, and the disc spring is pressed to generate gas; when the first cam does not extrude the first disks, the two first disks reset under the action of the disk springs; the stirring of the electrophoretic wastewater is further increased under the action of the first disc and the disc spring, so that not only is the sediment generated by the reaction prevented from being settled on the first plate, but also the electrophoretic wastewater is fully reacted; when the reaction of acidic and alkaline substances in the electrophoretic wastewater is finished and the electrophoretic wastewater is neutral, stopping rotating the servo motor, opening the through hole on the first plate to enable the treated electrophoretic wastewater to reach the position of the filter, and filtering the electrophoretic wastewater through the fine sand filter and the activated carbon filter in sequence; after the electrophoresis waste water is filtered by the filter, the electrophoresis waste water reaches the position of the ultrafiltration membrane filter element, the electrophoresis paint in the electrophoresis waste water is recovered by utilizing the ultrafiltration membrane filter element, and the electrophoresis waste water filtered by the ultrafiltration membrane filter element is discharged from the water outlet.

Preferably, the disc spring is made of acid-base resistant material, such as hastelloy C276, and the disc spring is of a hollow structure; through the design, the invention not only avoids the electrophoretic wastewater from damaging the disc spring and reduces the service life of the disc spring, but also generates gas when the two discs extrude the disc spring, and the gas is used as a power source of a recovery system, thereby improving the utilization rate of resources.

Preferably, the lifting unit includes an impeller, a fixing lever, a rotating wheel, and a rotating cam; the impeller is rotatably arranged on the box body through a rotating shaft; the rotating cam is positioned on the front side of the impeller, is sleeved on a rotating shaft of the impeller, and is rotated by applying gas generated when the hollow disc spring is extruded by the two discs to the impeller; the rotating wheel is rotatably arranged on the fixed rod through a rotating shaft and is in contact with the outer ring of the rotating cam; the end part of the fixed rod is fixedly connected to the activated carbon filter; through the design, on one hand, gas generated during extrusion of the disc spring acts on the impeller, so that the resource is recycled, and additional power equipment is avoided, thereby reducing the manufacturing cost of the recovery system; on the other hand, the rotation through the impeller makes the rotation cam rotate to control the filter in the ascending motion of vertical direction, both separated the deposit in the electrophoresis waste water after the pretreatment unit handles with electrophoresis waste water, avoided the deposit adhesion on the filter again, influence the filtration of later stage filter to electrophoresis waste water, thereby improved recovery system's filter effect.

Preferably, the cross section of the rotating cam is in a shape of four-petal plum blossom, the rotating cam rotates for a circle through the four-petal plum blossom-shaped rotating cam, the filter moves for four times in the vertical direction, and the filtration of the electrophoresis wastewater is increased; through the design, the movement times of the filter in the vertical direction are increased, so that the filter can shake repeatedly, the precipitate in the electrophoresis wastewater is prevented from being adhered to the filter, the filtration time of the electrophoresis wastewater is shortened, and the filtration efficiency of the electrophoresis wastewater is improved.

Preferably, the upper side of the ultrafiltration membrane filter element is provided with a cleaning unit, and the side wall of the box body is provided with a first hole; the cleaning unit is used for cleaning the ultrafiltration membrane filter element and discharging cleaned substances from the first hole and comprises a rotating rod and a cleaning assembly; the cleaning assembly is positioned above the ultrafiltration membrane filter element; one end of the rotating rod is hinged to the rotating cam positioned on the leftmost side, the other end of the rotating rod is hinged to the cleaning assembly, and the cleaning assembly automatically cleans the ultrafiltration membrane filter element through rotation of the rotating cam positioned on the leftmost side; after the ultrafiltration membrane filter element is used for a period of time, substances can be attached to the ultrafiltration membrane filter element, and if the ultrafiltration membrane filter element is not cleaned, the ultrafiltration membrane filter element can be damaged, so that the service life of a recovery system is shortened; according to the invention, through arranging the cleaning unit and through the mutual matching between the rotating cam and the rotating rod, the cleaning assembly automatically cleans the ultrafiltration membrane filter element in real time, so that the damage of the ultrafiltration membrane filter element caused by substances attached to the ultrafiltration membrane filter element is avoided, and the service life of the recovery system is prolonged.

Preferably, the cleaning assembly consists of a group of cleaning brushes; the number of the cleaning brushes is at least nine, the adjacent cleaning brushes are hinged with each other, and the brush hair of the cleaning brushes is squirrel hair; through the design, on one hand, as the squirrel hair is softer, the filtering core of the ultrafiltration membrane is cleaned by the squirrel hair, and the brushing hair is prevented from scratching the filtering core of the ultrafiltration membrane, so that the service life of the filtering core of the ultrafiltration membrane is prolonged; on the other hand, through the rotation of dwang for mutual articulated clearance brush rolling motion, when avoiding electrophoresis waste water from last to flowing down to ultrafiltration membrane filter core position, the material in the electrophoresis waste water is attached to the top of clearance brush, increases the bearing value of ultrafiltration membrane filter core, causes the damage of ultrafiltration membrane filter core, thereby has improved the life of ultrafiltration membrane filter core.

Preferably, the first plate is an elastic plate; the top of the fine sand filter is provided with a group of bulges; one end of each bulge is arc-shaped, the other end of each bulge is fixedly connected to the fine sand filter, the bulges are arranged discontinuously, and the first plate is extruded by the bulges to change in a wave crest mode, so that the sediment in the electrophoresis wastewater is prevented from being settled on the first plate; according to the design, the bulges, the first plate, the filter and the lifting unit are mutually matched, the first plate is continuously extruded in the process that the bulges move in the vertical direction, the first plate is an elastic plate, and the bulges are arranged discontinuously, so that the first plate is changed in a wave crest mode, precipitates are bounced, the precipitates in the electrophoresis wastewater are prevented from being settled on the first plate, the electrophoresis wastewater treated by the pretreatment unit flows to the position of the filter from the through hole of the first plate, and the filtration and separation of the electrophoresis wastewater are realized.

The invention has the following beneficial effects:

1. according to the efficient energy-saving RO electrophoresis recovery system, acidic and alkaline substances in electrophoresis wastewater are precipitated through the pretreatment unit, the electrophoresis wastewater to be filtered is neutral, and the acidic and alkaline substances in the electrophoresis wastewater are prevented from damaging a filter and a ultrafiltration membrane filter element, so that the service life of the recovery system is prolonged, and the later maintenance cost of the recovery system is reduced.

2. The efficient energy-saving RO electrophoresis recovery system is simple in structure, the cleaning unit automatically cleans the ultrafiltration membrane filter core in real time through the mutual matching of the lifting unit and the cleaning unit, the ultrafiltration membrane filter core is prevented from being detached from the recovery system, the operation is inconvenient, the continuity of electrophoresis wastewater recovery is ensured, and the efficiency of the electrophoresis recovery system is improved.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a front view of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a cross-sectional view B-B of FIG. 1;

FIG. 4 is a side view of the lifting unit;

in the figure: the device comprises a box body 1, a first plate 2, a filter 3, a fine sand filter 31, an activated carbon filter 32, a protrusion 33, a pretreatment unit 4, a water tank 411, an acid liquid tank 412, an alkali liquid tank 413, a servo motor 414, a first shaft 415, a first bevel gear 416, a second bevel gear 417, a second shaft 418, a first cam 419, a first disc 420, a disc spring 421, a lifting unit 5, an impeller 51, a fixed rod 52, a rotating wheel 53, a rotating cam 54, an ultrafiltration membrane filter element 6, a cleaning unit 7, a rotating rod 71, a cleaning assembly 72 and a cleaning brush 721.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 4, the efficient energy-saving RO electrophoresis recovery system comprises a box body 1, a first plate 2, a filter 3, a pretreatment unit 4, a lifting unit 5, an ultrafiltration membrane filter element 6 and a controller; the controller is used for controlling the work of the recovery system; a water inlet is formed in the side wall of the box body 1 and is communicated with the electrophoresis tank through a pipeline, and a water outlet is formed in the bottom of the box body 1; two ends of the first plate 2 are fixedly connected to the side wall of the box body 1, a through hole is formed in the middle of the first plate 2, and the through hole is controlled to be opened and closed through an electromagnetic switch; the pretreatment unit 4 is positioned on the upper side of the first plate 2, the pretreatment unit 4 is used for reacting acidic and alkaline substances in the electrophoresis wastewater, and the pretreatment unit 4 comprises a water tank 411, an acid liquid tank 412, an alkaline liquid tank 413, a speed sensor, a servo motor 414, a first shaft 415, a first bevel gear 416, a second bevel gear 417, a second shaft 418, a first cam 419, a first disc 420 and a disc spring 421; the water tank 411, the acid liquor tank 412 and the alkali liquor tank 413 are arranged at the top of the box body 1 and are communicated with the box body 1, and control valves are arranged at the communicated positions; the speed sensor is used for sensing the rotating speed of the servo motor 414; one end of the first shaft 415 is rotatably installed on the side wall of the box body 1, the other end of the first shaft is fixedly connected with the servo motor 414 through a bearing, and the servo motor 414 is installed on the outer wall of the box body 1; the first disc 420, the second shaft 418 and the first bevel gear 416 are respectively two in number, a group of openings are formed in the first disc 420 and the second shaft 418, the first bevel gear 416 and the first disc 420 are sleeved on the outer ring of the first shaft 415, the first disc 420 slides relative to the first shaft 415, and adjacent first discs 420 are connected through disc springs 421; the second shaft 418 penetrates through the first shaft 415; the first cam 419 and the second bevel gear 417 are respectively sleeved on the two second shafts 418, and the first bevel gear 416 and the second bevel gear 417 are in meshing transmission; the filter 3 is positioned at the lower side of the first plate 2, two ends of the filter 3 are in contact with the side wall of the box body 1, the filter 3 is fixed through a group of lifting units 5, the group of lifting units 5 are all positioned on the same horizontal plane, the filter 3 is enabled to move correspondingly through the movement of the group of lifting units 5 in the vertical direction, and the filter 3 comprises a fine sand filter 31 and an activated carbon filter 32; the fine sand filter 31 consists of a first anti-seepage sealing plate and a fine sand filtering layer, and the fine sand filtering layer is positioned between the two first anti-seepage sealing plates; the activated carbon filter 32 consists of a second anti-seepage sealing plate and an activated carbon filtering layer, and the activated carbon filtering layer is positioned between the two second anti-seepage sealing plates; the ultrafiltration membrane filter element 6 is positioned at the lower side of the filter 3, the ultrafiltration membrane filter element 6 is clamped on the side wall of the box body 1, a sealing ring is arranged at the clamping position, and the ultrafiltration membrane filter element 6 is used for separating electrophoresis wastewater from electrophoresis paint; when the electrophoresis recovery system is used, firstly, electrophoresis wastewater is input into the box body 1 from the electrophoresis tank, and at the moment, the water tank 411 sprays water into the box body 1 by controlling the control valve at the water tank 411 through the controller so as to wash the box body 1; after washing for six minutes, driving a servo motor 414, and driving a first shaft 415, a second shaft 418, a first disc 420 and a first bevel gear 416 to rotate through the servo motor 414 to stir the electrophoretic wastewater; when the speed sensor senses that the rotating speed of the servo motor 414 is 20-30 and keeps the speed for six minutes, the controller controls the control valve of the acid liquor tank 412 to spray acid liquor into the box body 1, so that alkaline substances in the electrophoresis wastewater are precipitated; after six minutes, namely after the alkaline substances in the electrophoresis wastewater are completely precipitated, the rotating speed of the servo motor 414 is continuously increased; when the speed sensor senses that the rotating speed of the servo motor 414 is 40-50 and keeps the speed for six minutes, the controller controls the control valve of the alkaline tank to spray alkaline liquid into the box body 1, so that acidic substances in the electrophoresis wastewater are precipitated; when the reaction of acidic and alkaline substances in the electrophoresis wastewater is carried out, the first bevel gear 416 and the second bevel gear 417 are in meshing transmission, so that the second shaft 418 rotates relative to the first shaft 415, and the first cam 419 rotates; when the first cam 419 presses the first disc 420, the first discs 420 move to the side close to each other, the two first discs 420 press the disc spring 421, and the disc spring 421 is pressed to generate gas; when the first cam 419 does not press the first disks 420, the two first disks 420 are reset under the action of the disc springs 421; the stirring of the electrophoresis wastewater is further increased through the action of the first disc 420 and the disc spring 421, so that not only is the sediment generated by the reaction prevented from being settled on the first plate 2, but also the electrophoresis wastewater is fully reacted; when the reaction of the acidic and alkaline substances in the electrophoretic wastewater is finished and the electrophoretic wastewater is neutral, stopping rotating the servo motor 414, opening the through hole on the first plate 2, and allowing the treated electrophoretic wastewater to reach the position of the filter 3, and filtering the electrophoretic wastewater through the fine sand filter 31 and the activated carbon filter 32 in sequence; after electrophoresis waste water filters through filter 3, reachs 6 positions of ultrafiltration membrane filter core, utilizes ultrafiltration membrane filter core 6 to retrieve electrophoresis lacquer in the electrophoresis waste water, and the electrophoresis waste water after 6 filters of ultrafiltration membrane filter core is discharged from the delivery port.

As an embodiment of the present invention, the disc spring 421 is made of acid-alkali resistant material, such as hastelloy C276, and the disc spring 421 has a hollow structure; through the design, the invention not only avoids the electrophoretic wastewater from damaging the disc spring 421 and reduces the service life of the disc spring 421, but also generates gas by the disc spring 421 when the two discs 420 extrude the disc spring 421, and the gas is used as a power source of a recovery system, thereby improving the utilization rate of resources.

As an embodiment of the present invention, the lifting unit 5 includes an impeller 51, a fixing lever 52, a rotating wheel 53, and a rotating cam 54; the impeller 51 is rotatably arranged on the box body 1 through a rotating shaft; the rotating cam 54 is positioned at the front side of the impeller 51, the rotating cam 54 is sleeved on the rotating shaft of the impeller 51, and the rotating cam 54 rotates by applying gas generated when the hollow disc spring 421 is extruded by the two first discs 420 to the impeller 51; the rotating wheel 53 is rotatably installed on the fixed rod 52 through a rotating shaft, and the rotating wheel 53 is in contact with the outer ring of the rotating cam 54; the end of the fixed rod 52 is fixedly connected with the activated carbon filter 32; through the design, on one hand, the gas generated when the disc spring 421 is extruded acts on the impeller 51, so that the resource is recycled, and the additional power equipment is avoided, thereby reducing the manufacturing cost of the recovery system; on the other hand, the rotation of impeller 51 makes rotation cam 54 rotate to control the motion of filter 3 in vertical direction, both separated the deposit in the electrophoresis waste water after pretreatment unit 4 handles with electrophoresis waste water, avoided the deposit adhesion on filter 3 again, influence the filtration of later stage filter 3 to electrophoresis waste water, thereby improved recovery system's filter effect.

As an embodiment of the present invention, the cross-sectional shape of the rotating cam 54 is a four-petal quincunx shape, and the rotating cam 54 rotates one turn by the four-petal quincunx shape of the rotating cam 54, so that the filter 3 performs four movements in the vertical direction, thereby increasing the filtration of the electrophoresis wastewater; through the design, the movement times of the filter 3 in the vertical direction are increased, so that the filter 3 is shaken repeatedly, the sediment in the electrophoresis wastewater is prevented from being adhered to the filter 3, the filtration time of the electrophoresis wastewater is shortened, and the filtration efficiency of the electrophoresis wastewater is improved.

As an embodiment of the invention, the upper side of the ultrafiltration membrane filter element 6 is provided with a cleaning unit 7, and the side wall of the box body 1 is provided with a first hole; the cleaning unit 7 is used for cleaning the ultrafiltration membrane filter element 6 and discharging cleaned substances from the first hole, and the cleaning unit 7 comprises a rotating rod 71 and a cleaning assembly 72; the cleaning assembly 72 is positioned above the ultrafiltration membrane cartridge 6; one end of the rotating rod 71 is hinged to the rotating cam 54 positioned at the leftmost side, the other end of the rotating rod is hinged to the cleaning assembly 72, and the cleaning assembly 72 automatically cleans the ultrafiltration membrane filter element 6 through the rotation of the rotating cam 54 positioned at the leftmost side; after the ultrafiltration membrane filter element 6 is used for a period of time, substances can be attached to the ultrafiltration membrane filter element 6, and if the ultrafiltration membrane filter element 6 is not cleaned, the ultrafiltration membrane filter element 6 can be damaged, so that the service life of a recovery system is shortened; according to the invention, by arranging the cleaning unit 7 and through the mutual matching between the rotating cam 54 and the rotating rod 71, the cleaning assembly 72 automatically cleans the ultrafiltration membrane filter element 6 in real time, so that the damage of the ultrafiltration membrane filter element 6 caused by substances attached to the ultrafiltration membrane filter element 6 is avoided, and the service life of the recovery system is prolonged.

As an embodiment of the present invention, the cleaning assembly 72 is composed of a set of cleaning brushes 721; the number of the cleaning brushes 721 is at least nine, the adjacent cleaning brushes 721 are hinged with each other, and the bristles of the cleaning brushes 721 are squirrel hairs; through the design, on one hand, as the squirrel hair is softer, the filtering core 6 of the ultrafiltration membrane is cleaned by the squirrel hair, so that the brush hair is prevented from scratching the filtering core 6 of the ultrafiltration membrane, and the service life of the filtering core 6 of the ultrafiltration membrane is prolonged; on the other hand, through the rotation of dwang 71 for mutual articulated clearance brush 721 undulant motion, when avoiding electrophoresis waste water from last to flowing down to ultrafiltration membrane filter core 6 position, the material in the electrophoresis waste water is attached to the top of clearance brush 721, increases ultrafiltration membrane filter core 6's bearing value, causes ultrafiltration membrane filter core 6's damage, thereby has improved ultrafiltration membrane filter core 6's life.

As an embodiment of the present invention, the first plate 2 is an elastic plate; the top of the fine sand filter 31 is provided with a group of bulges 33; one end of the bulge 33 is arc-shaped, the other end of the bulge 33 is fixedly connected to the fine sand filter 31, the bulge 33 is arranged discontinuously, and the first plate 2 is extruded by the bulge 33 to change in a wave crest manner, so that the sediment in the electrophoresis wastewater is prevented from settling on the first plate 2; according to the design, the bulge 33, the first plate 2, the filter 3 and the lifting unit 5 are matched with each other, the first plate 2 is continuously extruded by the bulge 33 in the process of moving in the vertical direction, the first plate 2 is an elastic plate, and the bulge 33 is arranged discontinuously, so that the first plate 2 changes in a wave crest mode, precipitates are bounced, the precipitates in the electrophoresis wastewater are prevented from being settled on the first plate 2, the electrophoresis wastewater treated by the pretreatment unit 4 flows to the position of the filter 3 from through holes of the first plate 2, and the filtration and separation of the electrophoresis wastewater are realized.

When the electrophoresis tank works, firstly, electrophoresis wastewater is input into the tank body 1 from the electrophoresis tank, and at the moment, the water tank 411 sprays water into the tank body 1 by controlling the control valve at the water tank 411 through the controller so as to wash the tank body; after washing for six minutes, driving a servo motor 414, and driving a first shaft 415, a second shaft 418, a first disc 420 and a first bevel gear 416 to rotate through the servo motor 414 to stir the electrophoretic wastewater; when the speed sensor senses that the rotating speed of the servo motor 414 is 20-30 and keeps the speed for six minutes, the controller controls the control valve of the acid liquor tank 412 to spray acid liquor into the box body 1, so that alkaline substances in the electrophoresis wastewater are precipitated; after six minutes, namely after the alkaline substances in the electrophoresis wastewater are completely precipitated, the rotating speed of the servo motor 414 is continuously increased; when the speed sensor senses that the rotating speed of the servo motor 414 is 40-50 and keeps the speed for six minutes, the controller controls the control valve of the alkaline tank to spray alkaline liquid into the box body 1, so that acidic substances in the electrophoresis wastewater are precipitated; when the reaction of acidic and alkaline substances in the electrophoresis wastewater is carried out, the first bevel gear 416 and the second bevel gear 417 are in meshing transmission, so that the second shaft 418 rotates relative to the first shaft 415, and the first cam 419 rotates; when the first cam 419 presses the first disc 420, the first discs 420 move to the side close to each other, the two first discs 420 press the disc spring 421, and the disc spring 421 is pressed to generate gas; when the first cam 419 does not press the first disks 420, the two first disks 420 are reset under the action of the disc springs 421; the stirring of the electrophoresis wastewater is further increased through the action of the first disc 420 and the disc spring 421, so that not only is the sediment generated by the reaction prevented from being settled on the first plate 2, but also the electrophoresis wastewater is fully reacted; when the reaction of the acidic and alkaline substances in the electrophoretic wastewater is finished and the electrophoretic wastewater is neutral, stopping rotating the servo motor 414, opening the through hole on the first plate 2, and allowing the treated electrophoretic wastewater to reach the position of the filter 3, and filtering the electrophoretic wastewater through the fine sand filter 31 and the activated carbon filter 32 in sequence; meanwhile, the gas generated by the extrusion of the disc spring 421 acts on the impeller 51, and the impeller 51 drives the rotating cam 54 to rotate, so that the filter 3 moves in the vertical direction, and the filtration of the electrophoresis wastewater is increased; after the electrophoresis wastewater is filtered by the filter 3, the electrophoresis wastewater reaches the position of the ultrafiltration membrane filter element 6, the electrophoresis paint in the electrophoresis wastewater is recovered by the ultrafiltration membrane filter element 6, and the electrophoresis wastewater filtered by the ultrafiltration membrane filter element 6 is discharged from a water outlet; simultaneously, through the mutually supporting between elevating unit 5 and cleaning unit 7, carry out automatic and real-time clearance to ultrafiltration membrane filter core 6, improve ultrafiltration membrane filter core 6's life.

The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.

Finally, it should be pointed out that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention. All other embodiments obtained by a person skilled in the art without making any inventive step are within the scope of protection of the present invention.

Claims

1. The utility model provides an energy-efficient type RO electrophoresis recovery system, includes box (1), its characterized in that: the device also comprises a first plate (2), a filter (3), a pretreatment unit (4), a lifting unit (5), an ultrafiltration membrane filter element (6) and a controller; the controller is used for controlling the work of the recovery system; a water inlet is formed in the side wall of the box body (1), the water inlet is communicated with the electrophoresis tank through a pipeline, and a water outlet is formed in the bottom of the box body (1); two ends of the first plate (2) are fixedly connected to the side wall of the box body (1), a through hole is formed in the middle of the first plate (2), and the through hole is controlled to be opened and closed through an electromagnetic switch; the pretreatment unit (4) is positioned on the upper side of the first plate (2), the pretreatment unit (4) is used for reacting acidic and alkaline substances in the electrophoresis wastewater, and the pretreatment unit (4) comprises a water tank (411), an acid liquor tank (412), an alkaline liquor tank (413), a speed sensor, a servo motor (414), a first shaft (415), a first bevel gear (416), a second bevel gear (417), a second shaft (418), a first cam (419), a first disc (420) and a disc spring (421); the water tank (411), the acid liquor tank (412) and the alkali liquor tank (413) are arranged at the top of the box body (1) and are communicated with the box body (1), and control valves are arranged at the communication positions; the speed sensor is used for sensing the rotating speed of the servo motor (414); one end of the first shaft (415) is rotatably arranged on the side wall of the box body (1), the other end of the first shaft is fixedly connected with a servo motor (414) through a bearing, and the servo motor (414) is arranged on the outer wall of the box body (1); the first disks (420), the second shafts (418) and the first bevel gears (416) are respectively two in number, a group of openings are formed in the first disks (420) and the second shafts (418), the first bevel gears (416) and the first disks (420) are sleeved on the outer rings of the first shafts (415), the first disks (420) slide relative to the first shafts (415), and adjacent first disks (420) are connected through disc springs (421); the second shaft (418) penetrates through the first shaft (415); the first cam (419) and the second bevel gear (417) are respectively sleeved on the two second shafts (418), and the first bevel gear (416) is in meshing transmission with the second bevel gear (417); the filter (3) is positioned on the lower side of the first plate (2), two ends of the filter (3) are in contact with the side wall of the box body (1), the filter (3) is fixed through a group of lifting units (5), the group of lifting units (5) are all positioned on the same horizontal plane, the filter (3) is enabled to move correspondingly through the movement of the group of lifting units (5) in the vertical direction, and the filter (3) comprises a fine sand filter (31) and an activated carbon filter (32); the fine sand filter (31) consists of a first anti-seepage sealing plate and a fine sand filtering layer, and the fine sand filtering layer is positioned between the two first anti-seepage sealing plates; the activated carbon filter (32) consists of a second anti-seepage sealing plate and an activated carbon filtering layer, and the activated carbon filtering layer is positioned between the two second anti-seepage sealing plates; ultrafiltration membrane filter core (6) are located filter (3) downside, and ultrafiltration membrane filter core (6) joint is on the lateral wall of box (1), and joint department is equipped with the sealing washer, and ultrafiltration membrane filter core (6) are used for the separation of electrophoresis waste water and electrophoresis lacquer.

2. The energy-efficient RO electrophoresis recovery system of claim 1, wherein: the disc spring (421) is made of acid-base resistant material, and the disc spring (421) is of a hollow structure.

3. The energy-efficient RO electrophoresis recovery system of claim 1, wherein: the lifting unit (5) comprises an impeller (51), a fixed rod (52), a rotating wheel (53) and a rotating cam (54); the impeller (51) is rotatably arranged on the box body (1) through a rotating shaft; the rotating cam (54) is positioned on the front side of the impeller (51), the rotating cam (54) is sleeved on a rotating shaft of the impeller (51), and the rotating cam (54) rotates by acting gas generated when the hollow disc spring (421) is extruded by the two discs (420) on the impeller (51); the rotating wheel (53) is rotatably arranged on the fixed rod (52) through a rotating shaft, and the rotating wheel (53) is contacted with the outer ring of the rotating cam (54); the end part of the fixed rod (52) is fixedly connected with the activated carbon filter (32).

4. An energy-efficient RO electrophoresis recovery system according to claim 3, wherein: the cross section of the rotating cam (54) is in a shape of four-petal plum blossom, the rotating cam (54) rotates for a circle through the rotating cam (54) in the shape of four-petal plum blossom, the filter (3) moves for four times in the vertical direction, and the filtration of the electrophoresis wastewater is enlarged.

5. The energy-efficient RO electrophoresis recovery system of claim 1, wherein: a cleaning unit (7) is arranged on the upper side of the ultrafiltration membrane filter element (6), and a first hole is formed in the side wall of the box body (1); the cleaning unit (7) is used for cleaning the ultrafiltration membrane filter element (6) and discharging cleaned substances from the first hole, and the cleaning unit (7) comprises a rotating rod (71) and a cleaning assembly (72); the cleaning assembly (72) is positioned above the ultrafiltration membrane filter element (6); dwang (71) one end articulates on being located leftmost rotation cam (54), and the other end articulates on clearance subassembly (72), rotates the rotation of cam (54) through being located leftmost for clearance subassembly (72) are automatic clears up ultrafiltration membrane filter core (6).

6. The energy-efficient RO electrophoresis recovery system of claim 5, wherein: the cleaning component (72) consists of a group of cleaning brushes (721); the number of the cleaning brushes (721) is at least nine, the adjacent cleaning brushes (721) are hinged with each other, and the bristles of the cleaning brushes (721) are squirrel hairs.

7. The energy-efficient RO electrophoresis recovery system of claim 1, wherein: the first plate (2) is an elastic plate; the top of the fine sand filter (31) is provided with a group of bulges (33); protruding (33) one end is arc, and the other end links firmly on fine sand filter (31), and protruding (33) discontinuity sets up, extrudees a board (2) through protruding (33) for a board (2) are the crest formula and change, avoids the sediment among the electrophoresis waste water to subside on a board (2).