CN219314769U - Comprehensive treatment system for copper-containing waste liquid in printed circuit board processing - Google Patents
Comprehensive treatment system for copper-containing waste liquid in printed circuit board processing Download PDFInfo
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- CN219314769U CN219314769U CN202320153297.XU CN202320153297U CN219314769U CN 219314769 U CN219314769 U CN 219314769U CN 202320153297 U CN202320153297 U CN 202320153297U CN 219314769 U CN219314769 U CN 219314769U
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Abstract
The utility model relates to a comprehensive treatment system for copper-containing waste liquid in printed circuit board processing, which comprises: a pretreatment tank connected to the waste liquid storage tank; the waste liquid circulating tank is connected with the pretreatment tank through a first infusion tube, a first electric control valve and a first delivery pump are arranged on the first infusion tube, and an ion detector is arranged in the waste liquid circulating tank; the electrolysis module is connected with the waste liquid circulation tank through a second infusion tube, and comprises a plurality of electrolysis devices connected in series, the water outlet of each electrolysis device is connected with the waste liquid circulation tank through a circulation tube, a second delivery pump is arranged on the second infusion tube, and a second electric control valve is arranged on the circulation tube; the waste liquid collecting tank is provided with a third delivery pump and a third electric control valve on the third infusion tube. According to the utility model, the waste liquid flows circularly and reciprocally in the waste liquid circulation tank and the electrolysis device and is subjected to electrolysis treatment, so that the waste liquid with low metal concentration can be subjected to electrolysis treatment, the recovery treatment of copper materials is effectively realized, and the electrolysis recovery effect is better.
Description
Technical Field
The utility model relates to the technical field of waste liquid treatment equipment, in particular to a comprehensive treatment system for copper-containing waste liquid in printed circuit board processing.
Background
In the processing process of the PCB (Printed Circuit Board, the printed circuit board) needs to be etched by using a copper chloride solution and hydrochloric acid as corrosive liquid, so that a large amount of copper-containing waste liquid can be generated, and the copper-containing waste liquid is recycled due to the high copper content in the waste liquid, so that the method has environmental protection benefit and good economic benefit. The corrosion object is high-purity copper, so that impurities in the waste liquid are few, the main components of the waste liquid are copper chloride and hydrochloric acid, the content of the copper chloride is approximately 100-200 g/L, and the content of the hydrochloric acid is approximately 2-4 mol/L.
At present, the treatment methods of copper-containing waste liquid mainly include an electrolytic method, an iron replacement method, a sulfidation method, an ion exchange method and the like, wherein the electrolytic method is widely used because relatively high recovery efficiency and recovery metal quality can be maintained at a low metal concentration. The existing waste liquid treatment system mainly can realize the electrowinning recovery of the waste liquid with high metal ion concentration, and is difficult to realize the effective recovery of the waste liquid with low metal ion concentration due to the slower ion transmission rate.
Disclosure of Invention
In view of the above-described drawbacks of the prior art, an object of the present utility model is to provide a comprehensive treatment system for copper-containing waste liquid in printed circuit board processing, which can realize effective electrolytic recovery of low-concentration metals.
To achieve the above and other related objects, the present utility model provides the following technical solutions:
a copper-containing waste liquid comprehensive treatment system for printed circuit board processing comprises:
the pretreatment tank is connected with the waste liquid storage tank and is used for carrying out sedimentation filtration pretreatment on impurities in the waste liquid;
the waste liquid circulating tank is connected with the pretreatment tank through a first infusion tube, a first electric control valve and a first delivery pump are arranged on the first infusion tube, and an ion detector for detecting the concentration of copper ions is arranged in the waste liquid circulating tank;
the electrolysis module is connected with the waste liquid circulation tank through a second infusion tube, the electrolysis module comprises a plurality of electrolysis devices connected in series, the electrolysis devices are used for electrolytically depositing copper ions to form copper materials, a water inlet and a water outlet are arranged on the electrolysis devices, the water inlet and the water outlet of the adjacent electrolysis devices are connected, the water outlet of the last electrolysis device is connected with the waste liquid circulation tank through a circulation tube, a second delivery pump is arranged on the second infusion tube, and a second electric control valve is arranged on the circulation tube;
the waste liquid collecting tank is connected with the water outlet of the last electrolysis device in the electrolysis module through a third infusion tube, a third delivery pump and a third electric control valve are arranged on the third infusion tube, and the waste liquid collecting tank is connected to a waste liquid treatment center.
When the technical scheme is realized, during waste liquid treatment, waste liquid enters a pretreatment tank from a waste liquid storage tank, treatment reagents are pre-stored in the pretreatment tank, impurities or foreign ions in the waste liquid are removed in the pretreatment tank through sedimentation and filtration pretreatment, then the waste liquid is pumped into a waste liquid circulating tank by a first conveying pump, the first conveying pump stops running after the waste liquid is conveyed to a preset liquid level, a first electric control valve is closed, at the moment, a second electric control valve is opened, a second conveying pump is started, a third electric control valve is closed, and a third conveying pump stops running, the waste liquid sequentially passes through copper materials at the places where electrolytic treatment is performed from each electrolytic device, the discharge standard is achieved after the concentration of the waste liquid is detected to be reduced to a preset low concentration by an ion detector, the second electric control valve is closed, the third conveying pump is started, the third electric control valve is opened, the waste liquid after the electrolytic treatment is completed can be discharged into a waste liquid collecting tank for collection, and finally the waste liquid is conveyed to a waste liquid treatment center for centralized treatment and discharge; through circulating the waste liquid in the waste liquid circulating tank and the electrolysis device to flow and carry out electrolytic treatment, the waste liquid with low metal concentration can be subjected to electrolytic treatment, the recovery treatment of copper materials is effectively realized, and the electrolytic recovery effect is better.
As a preferable scheme of the utility model, a liquid level sensor is further arranged in the waste liquid circulation tank, and when the liquid level sensor detects that the waste water in the waste liquid circulation tank reaches a preset liquid level, the first electric control valve is closed, and the first conveying pump is stopped.
According to the technical scheme, the liquid level of the wastewater can be limited by arranging the liquid level sensor, so that the situation that the electrolytic treatment cannot be performed in time due to overhigh liquid level is prevented.
As a preferable scheme of the utility model, a hoisting mechanism is further arranged right above the electrolysis module, and the hoisting mechanism adopts a truss crane.
According to the technical scheme, the copper materials deposited in the electrolytic devices can be conveniently taken out through the hoisting mechanism.
As a preferable mode of the utility model, temperature sensors are provided in the pretreatment tank, in the waste liquid circulation tank, and in the waste liquid collection tank.
According to the technical scheme, the temperature of the waste liquid can be detected in real time through the temperature sensor, so that the waste liquid temperature is prevented from being too high in the electrolysis process, and the equipment is overheated and damaged.
As a preferred embodiment of the present utility model, the electrolytic device includes:
the anode electrolysis column is used as an electrolysis anode, and a water inlet is formed in the conductive base;
the cathode transmission torch is hermetically connected with the conductive base, a cathode electrolysis cylinder sleeved outside the anode electrolysis column and used as an electrolysis cathode is arranged in the cathode transmission torch, and the anode electrolysis column interacts with the cathode electrolysis cylinder to electrolyze the waste liquid and deposit copper ions on the inner wall of the anode electrolysis cylinder; the method comprises the steps of,
the sealing cover assembly is connected with the cathode flashlight in a sealing mode, a water outlet is formed in the sealing cover assembly, and an openable top cover is arranged at the top of the sealing cover assembly.
According to the technical scheme, waste liquid enters the conductive base from the water inlet, the conductive base is used for supplying power to the anode electrolysis column, the cathode transmission torch is used for supplying power to the cathode electrolysis cylinder, when the waste liquid passes between the anode electrolysis column and the cathode electrolysis cylinder, copper ions in the waste liquid can be gradually deposited on the inner wall of the cathode electrolysis cylinder under the electrolysis action of the anode electrolysis column and the cathode electrolysis cylinder, and as the waste water flows from the water inlet at the bottom to the water outlet at the top, the waste water can rise in a cyclone manner, rapid stirring can be realized in the flowing process, and then the waste liquid with low metal concentration can be subjected to electrolysis treatment, so that the recovery treatment of copper materials is effectively realized, and meanwhile, the overall electric power distribution is more uniform and the uniformity of electrolysis recovery is higher through the arrangement mode of the anode electrolysis column and the cathode electrolysis cylinder; after a certain period of electrolytic treatment, the top cover can be opened, deposited copper materials are lifted out from the top by utilizing the lifting mechanism, the recovery of the copper materials is realized, and the recovery process is simpler and more convenient.
As a preferred embodiment of the present utility model, the conductive base includes: the cathode electrolytic tube comprises a conductive connecting disc, a lower insulating tube, an anode electricity transmission plate, an electric connection sheet and a cathode electricity transmission plate, wherein the lower insulating tube is connected with the conductive connecting disc in a sealing mode, the anode electricity transmission plate is electrically connected with the conductive connecting disc, the electric connection sheet is borne on the lower insulating tube and is used for being electrically connected with the cathode electrolytic tube, the cathode electricity transmission plate is connected with the electric connection sheet, and the water inlet is formed in the lower insulating tube.
According to the technical scheme, current conduction is carried out through the conductive connecting disc and the electric connecting sheet, and the anode electricity transmission plate and the cathode electricity transmission plate are electrically connected with an external power supply, so that power is supplied to the anode electrolysis column and the cathode electrolysis cylinder, and the power loss can be reduced due to the arrangement of the lower insulating tube.
As a preferable mode of the utility model, the cathode electricity-transfer plate is C-shaped, and a connecting part connected with the anode electricity-transfer plate is provided at the lower part of the cathode electricity-transfer plate.
According to the technical scheme, the cathode electricity transmission plate can be conveniently connected with the anode electricity transmission plate, and the adjacent electrolysis recovery device is convenient to realize electric connection, so that modularization expansion is easier.
As a preferable scheme of the utility model, a connecting sleeve is arranged in the middle of the conductive connecting disc, and the anode electrolysis column is inserted and fixed on the connecting sleeve; the upper end of the lower insulating tube is provided with a limit sleeve, and the cathode electrolytic tube is sleeved and fixed on the limit sleeve.
According to the technical scheme, the fixed anode electrolysis column is conveniently installed and powered by the connecting sleeve, and the fixed cathode electrolysis cylinder is conveniently installed by the limiting sleeve.
As a preferred aspect of the present utility model, the sealing cap assembly includes: the cathode flashlight comprises an upper insulating tube connected with the cathode flashlight in a sealing mode, and a connecting structure arranged at the top of the upper insulating tube, wherein the top cover is detachably connected with the upper insulating tube through the connecting structure, and the water outlet is formed in the upper insulating tube.
According to the technical scheme, the detachable connection is realized through the connecting structure and the top cover, so that the cathode electrolytic tube is convenient to install and the deposited copper material is convenient to take out.
As a preferred embodiment of the present utility model, the connection structure includes: the fixing section is fixed at the top of the upper insulating tube, the first rotary buckles are arranged on the fixing section in a surrounding mode, and the second rotary buckles are arranged on the top cover and matched with the first rotary buckles;
the outer fringe of top cap is provided with the go-between, the rotatory buckle of second set up in the inner wall of go-between, just be equipped with on the go-between a plurality of with the corresponding dismantlement mouth of first rotatory buckle.
Realize above-mentioned technical scheme, realize through first rotatory buckle and the rotatory buckle of second that the top cap can be dismantled with last insulating tube and be connected, because rotatory buckle of second sets up at the go-between inner wall for the top cap lid is established more pleasing to the eye when last insulating tube, and can't dismantle at will, played the effect of theftproof, and go into the dismantlement mouth through dedicated instrument card when dismantling with first rotatory buckle inwards support and push away, make first rotatory buckle break away from with the dismantlement mouth, can drive the top cap rotation and make first rotatory buckle break away from mutually with the rotatory buckle of second, realize the dismantlement process of top cap.
As described above, the present utility model has the following advantageous effects:
according to the embodiment of the utility model, when the copper-containing waste liquid is processed by the printed circuit board, the waste liquid enters the pretreatment tank from the waste liquid storage tank, the pretreatment tank is pre-stored with the treatment reagent, the waste liquid is subjected to sedimentation filtration pretreatment in the pretreatment tank to remove impurities or foreign ions therein, then the waste liquid is pumped into the waste liquid circulation tank by the first delivery pump, the first delivery pump stops running after the waste liquid is conveyed to a preset liquid level, the first delivery valve is closed, at the moment, the second delivery valve is opened, the second delivery pump is started, the third delivery valve is closed, the third delivery pump stops running, the waste liquid sequentially passes through copper materials at the electrolytic treatment deposition positions from the electrolytic devices, the discharge standard is reached after the concentration of the waste liquid detected by the ion detector is reduced to a preset low concentration, the second delivery valve is closed, the third delivery pump is started, the third delivery valve is opened, and the waste liquid after the electrolytic treatment is completed can be discharged into the waste liquid collection tank to be collected, and finally conveyed to the waste liquid treatment center for centralized treatment and discharge; through circulating the waste liquid in the waste liquid circulating tank and the electrolysis device to flow and carry out electrolytic treatment, the waste liquid with low metal concentration can be subjected to electrolytic treatment, the recovery treatment of copper materials is effectively realized, and the electrolytic recovery effect is better.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present utility model.
FIG. 2 is a schematic view showing the structure of an electrolytic device according to an embodiment of the present utility model.
FIG. 3 is an exploded view of an electrolyzer according to an embodiment of the utility model.
FIG. 4 is an exploded view of an alternate view of an electrolyzer in accordance with an embodiment of the utility model.
FIG. 5 shows a cross-sectional view of an electrolyzer in an embodiment of the utility model.
FIG. 6 is a cross-sectional view of an alternate view of an electrolyzer in accordance with an embodiment of the utility model in which the direction of the arrows is the direction of the liquid flow.
FIG. 7 is a schematic view showing the flow direction of wastewater in an electrolyzer in accordance with an embodiment of the present utility model.
FIG. 8 is a schematic view showing the structure of connection of adjacent electrolytic devices in the embodiment of the present utility model.
Corresponding part names are indicated by numerals and letters in the drawings:
1. a pretreatment tank; 2. a waste liquid circulation tank; 21. a first infusion tube; 22. a first electrically controlled valve; 23. a first transfer pump; 24. an ion detector; 25. a liquid level sensor; 3. an electrolysis device; 31. a conductive base; 311. an anodic electrolysis column; 312. a water inlet; 313. a conductive land; 3131. a connecting sleeve; 314. a lower insulating tube; 3141. a connecting flange plate; 3142. a limit sleeve; 315. an anode electricity transmission plate; 316. an electrical connection piece; 317. a cathode electricity transfer plate; 3171. a connection part; 318. a first lower gasket; 319. a second lower gasket; 32. a cathode flashlight; 321. a cathode electrolytic cartridge; 3211. a groove; 322. installing a flange plate; 33. a seal cap assembly; 331. a water outlet; 332. a top cover; 3321. a connecting ring; 3322. a disassembly port; 3323. a cover body; 3324. capping; 3325. a water outlet hole; 3326. a limit step; 333. an upper insulating tube; 3331. an upper gasket; 3332. a fixed flange; 334. a connection structure; 3341. a fixed section; 3342. a first rotary buckle; 3343. the second rotary buckle; 34. copper material; 4. a second infusion tube; 41. a second transfer pump; 5. a circulation pipe; 51. a second electrically controlled valve; 6. a waste liquid collection tank; 61. a third infusion tube; 62. a third transfer pump; 63. a third electrically controlled valve; 7. a hoisting mechanism; 8. a temperature sensor.
Detailed Description
Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.
Please refer to fig. 1 to 8. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the utility model, are not intended to be critical to the essential characteristics of the utility model, but are intended to fall within the spirit and scope of the utility model. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the utility model, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the utility model may be practiced.
Referring to fig. 1 to 8, the present utility model provides a comprehensive treatment system for copper-containing waste liquid in printed circuit board processing, comprising: the pretreatment tank 1 is connected with the waste liquid storage tank, and the pretreatment tank 1 is used for carrying out sedimentation filtration pretreatment on impurities in the waste liquid; a waste liquid circulation tank 2 connected with the pretreatment tank 1 through a first infusion tube 21, wherein a first electric control valve 22 and a first delivery pump 23 are arranged on the first infusion tube 21, and an ion detector 24 for detecting the concentration of copper ions is arranged in the waste liquid circulation tank 2; the electrolysis module is connected with the waste liquid circulation tank 2 through a second infusion tube 4, the electrolysis module comprises a plurality of electrolysis devices 3 connected in series, the electrolysis devices 3 are used for electrolytically depositing copper ions to form copper materials 34, a water inlet 312 and a water outlet 331 are arranged on the electrolysis devices 3, the water inlet 312 and the water outlet 331 of the adjacent electrolysis devices 3 are connected, the water outlet 331 of the last electrolysis device 3 is connected with the waste liquid circulation tank 2 through a circulation tube 5, a second delivery pump 41 is arranged on the second infusion tube 4, and a second electric control valve 51 is arranged on the circulation tube 5; the third liquid transfer pipe 61 is provided with a third transfer pump 62 and a third electric control valve 63, and the liquid waste collection tank 6 is connected with a liquid waste treatment center through the third liquid transfer pipe 61 and the water outlet 331 of the last electrolysis device 3 in the electrolysis module.
Specifically, the pretreatment tank 1 is pre-stored with a treatment reagent, the treatment reagent is only needed to be an existing reagent, the pretreatment tank 1 can be set to be a plurality of pretreatment tanks which are sequentially connected, and the waste liquid can be subjected to a plurality of pretreatment processes when flowing in the pretreatment tanks 1, so that the pretreatment effect is improved.
The waste liquid circulation tank 2 is internally provided with a liquid level sensor 25, when the liquid level sensor 25 detects that the waste water in the waste liquid circulation tank 2 reaches a preset liquid level, the first electric control valve 22 is closed, the first conveying pump 23 is stopped, the liquid level of the waste water can be limited by the liquid level sensor 25, the waste liquid is prevented from being excessively high and cannot be subjected to electrolytic treatment in time, when the treatment is finished, the waste liquid in the waste liquid circulation tank 2 and the electrolytic device 3 is firstly discharged, when the liquid level of the waste liquid circulation tank 2 drops to a lowest liquid level, the lowest liquid level is detected by the liquid level sensor 25, then the waste liquid is pumped into the waste liquid circulation tank 2 by the first conveying pump 23, and the second conveying pump 41 continuously operates in the process of pumping the waste liquid, so that the waste liquid can be continuously filled into the electrolytic device 3, and when the liquid level in the waste liquid circulation tank 2 reaches the preset liquid level again, the first electric control valve 22 is closed, and the first conveying pump 23 is controlled to stop; meanwhile, temperature sensors 8 are arranged in the pretreatment tank 1, the waste liquid circulation tank 2 and the waste liquid collection tank 6, the temperature of waste liquid can be detected in real time through the temperature sensors 8, the waste liquid is prevented from being too high in temperature in the electrolysis process, equipment is overheated and damaged, and the first electric control valve 22, the second conveying pump 23, the second electric control valve 51, the second conveying pump 41, the third electric control valve 63 and the third conveying pump 62 can be uniformly controlled by a remote control cabinet.
Further, still be equipped with hoist mechanism 7 directly over electrolytic module, hoist mechanism 7 adopts the truss crane, the truss crane generally includes hoist support and electric block, be equipped with slidable slide rail on the hoist support, and be equipped with the first actuating mechanism that is used for driving slide rail reciprocating motion on hoist support, first actuating mechanism preferably adopts chain drive mechanism, electric block sliding connection is in the slide rail, and be equipped with the second actuating mechanism that is used for driving electric block reciprocating motion on the slide rail, second actuating mechanism preferably adopts screw drive mechanism, can conveniently take out the copper product 34 of deposit in each electrolytic device 3 through hoist mechanism 7.
Further, the electrolytic device 3 in this embodiment includes: the conductive base 31, the conductive base 31 is connected with an anode electrolysis column 311 used as an electrolysis anode, and a water inlet 312 is arranged on the conductive base 31; the cathode transmission torch 32 is connected to the conductive base 31 in a sealing way, a cathode electrolysis cylinder 321 sleeved outside the anode electrolysis column 311 and used as an electrolysis cathode is arranged in the cathode transmission torch 32, and the anode electrolysis column 311 and the cathode electrolysis cylinder 321 interact to electrolyze the waste liquid to deposit copper ions on the inner wall of the anode electrolysis cylinder; and a sealing cover assembly 33 which is connected with the cathode flashlight 32 in a sealing way, wherein a water outlet 331 is arranged on the sealing cover assembly 33, and an openable top cover 332 is arranged on the top of the sealing cover assembly 33.
When the electrolytic copper recovery device is used, waste liquid enters the conductive base 31 from the water inlet 312, the conductive base 31 is used for supplying power to the anode electrolysis column 311, the cathode electricity transmission tube 32 is used for supplying power to the cathode electrolysis tube 321, when the waste liquid passes between the anode electrolysis column 311 and the cathode electrolysis tube 321, copper ions in the waste liquid are gradually deposited on the inner wall of the cathode electrolysis tube 321 under the electrolysis action of the anode electrolysis column 311 and the cathode electrolysis tube 321, and as the waste water flows from the water inlet 312 at the bottom to the water outlet 331 at the top, the waste water can rise in a cyclone manner, the rapid stirring can be realized in the flowing process, the electrolytic treatment of the waste liquid with low metal concentration can be further realized, the recovery treatment of the copper material 34 is effectively realized, and meanwhile, the overall electric power distribution is more uniform and the electrolytic recovery uniformity is higher through the arrangement mode of the anode electrolysis column 311 and the cathode electrolysis tube 321; after a certain period of electrolytic treatment, the top cover 332 can be opened, the deposited copper material 34 is lifted out from the top by the lifting mechanism 7, the recovery of the copper material 34 is realized, and the recovery process is simpler and more convenient.
Specifically, the conductive base 31 includes: the cathode electrolytic tube 321 comprises a conductive connecting disc 313, a lower insulating tube 314, an anode electricity transmission plate 315, an electric connection sheet 316 and a cathode electricity transmission plate 317, wherein the lower insulating tube 314 is hermetically connected with the conductive connecting disc 313, the anode electricity transmission plate 315 is electrically connected with the conductive connecting disc 313, the electric connection sheet 316 is carried on the lower insulating tube 314 and is electrically connected with a cathode electrolytic tube 321, a water inlet 312 is formed in the lower insulating tube 314, the conductive connecting disc 313, the anode electricity transmission plate 315, the electric connection sheet 316 and the cathode electricity transmission plate 317 are all made of conductive materials, a mounting hole is formed in the bottom of the conductive connecting disc 313 on a conductive base 31, the anode electricity transmission plate 315 is inserted into the mounting hole and is fixedly connected with the conductive connecting disc 313 through screws, the cathode electricity transmission plate 317, the electric connection sheet 316 and a cathode electricity transmission tube 32 are sequentially electrically connected, and the cathode electricity transmission tube 32 is in contact with the cathode electrolytic tube 321 to realize power supply to the cathode electrolytic tube 321; the current conduction is carried out through the conductive connecting disc 313 and the electric connection sheet 316, and the anode electricity transmission plate 315 and the cathode electricity transmission plate 317 are electrically connected with an external power supply, so that power is supplied to the anode electrolysis column 311 and the cathode electrolysis cylinder 321, and the arrangement of the lower insulating tube 314 can reduce power loss.
Be equipped with first sealed pad 318 down between electrically conductive connection pad 313 and the lower insulating tube 314, be equipped with the sealed pad 319 down between lower insulating tube 314 and the cathode pass torch 32 down, thereby improved the leakproofness between electrically conductive connection pad 313, lower insulating tube 314 and the cathode pass torch 32, both ends all are equipped with flange 3141 about lower insulating tube 314, lower insulating tube 314 passes through flange 3141 and electrically conductive connection pad 313 and cathode pass torch 32, correspondingly, both ends all are equipped with the mounting flange 322 corresponding with flange 3141 about the cathode pass torch, and all be equipped with corresponding first connecting hole on mounting flange 3141 and the mounting flange 322 that is located the cathode pass torch 32 bottom, through wear to establish the bolt subassembly in first connecting hole, thereby realize fixed connection between them, it is more stable and the leakproofness is higher to connect through flange connection's mode.
The cathode electricity transmission plate 317 is C-shaped, the lower part of the cathode electricity transmission plate 317 is provided with a connecting part 3171 connected with the anode electricity transmission plate 315, the upper part of the cathode electricity transmission plate 317 is provided with a plurality of first cathode connecting holes, the connecting part 3171 is provided with a plurality of second cathode connecting holes, the electric connection sheet 316 is provided with a plurality of first conductive connecting holes corresponding to the first cathode connecting holes, and the second cathode connecting holes are waist-shaped holes, so that the cathode electricity transmission plate 317 can be conveniently connected with the anode electricity transmission plate 315, and the adjacent electrolysis recovery devices are convenient to realize electric connection, so that the modularization expansion is easier.
Further, a connecting sleeve 3131 is arranged in the middle of the conductive connecting disc 313, the anode electrolysis column 311 is inserted and fixed in the connecting sleeve 3131, the anode electrolysis column 311 and the connecting sleeve 3131 can be connected and fixed in an interference fit manner, and the anode electrolysis column 311 is convenient to install and fix and power supply to the anode electrolysis column 311. Meanwhile, a limiting sleeve 3142 is arranged at the upper end of the lower insulating tube 314, the cathode electrolytic cylinder 321 is sleeved and fixed on the limiting sleeve 3142, and the cathode electrolytic cylinder 321 is convenient to install and fix through the limiting sleeve 3142.
In this embodiment, the anode electrolysis post 311 is provided with a hollow structure, the cathode electrolysis cylinder 321 is formed by bending a flat plate electrode, and two ends of the cathode electrolysis cylinder 321 can be not closed, so that a groove 3211 is formed, and the processing process is more convenient and quicker.
The seal cap assembly 33 includes: the upper insulating tube 333 in sealing connection with the cathode conductive tube 32, and the connecting structure 334 arranged at the top of the upper insulating tube 333, the top cover 332 is detachably connected with the upper insulating tube 333 through the connecting structure 334, the water outlet 331 is arranged on the upper insulating tube 333, and the detachable connection with the top cover 332 is realized through the connecting structure 334, so that the cathode electrolytic tube 321 is convenient to install and the deposited copper material 34 is convenient to take out.
Wherein, the connection structure 334 includes: the fixing section 3341 fixed on the top of the upper insulating tube 333, a plurality of first rotary buckles 3342 which are annularly arranged on the fixing section 3341, and a plurality of second rotary buckles 3343 which are arranged on the top cover 332 and matched with the first rotary buckles 3342, wherein the first rotary buckles 3342 are L-shaped so as to form a bayonet, and the second rotary buckles 3343 can be embedded into the bayonet so as to realize limit fixation of the two; in the embodiment, a connecting ring 3321 is disposed at the outer edge of the top cover 332, a second rotating buckle 3343 is disposed on the inner wall of the connecting ring 3321, and a plurality of dismounting ports 3322 corresponding to the first rotating buckle 3342 are disposed on the connecting ring 3321.
Realize that top cap 332 can dismantle with last insulating tube 333 through first rotatory buckle 3342 and the cooperation of second rotatory buckle 3343 and be connected, because second rotatory buckle 3343 sets up at the go-between 3321 inner wall for top cap 332 lid is established when last insulating tube 333 more pleasing to the eye, and can't dismantle at will, played the effect of theftproof, and get into dismantlement mouth 3322 through special instrument card during the dismantlement and inwards support first rotatory buckle 3342 and push away, make first rotatory buckle 3342 break away from with dismantlement mouth 3322, can drive top cap 332 rotation and make first rotatory buckle 3342 break away from mutually with second rotatory buckle 3343, realize the dismantlement process of top cap 332.
Further, the top cover 332 includes a cover body 3323 and a cover cap 3324, the cover cap 3324 extends downward to be in contact with the cathode electrolytic cylinder 321, and the cover cap 3324 is provided with a water outlet 3325 corresponding to the water outlet 331; a limiting step 3326 is arranged at the bottom of the cap 3324, the cathode electrolytic cylinder 321 is sleeved on the limiting step 3326, and a limiting caulking groove matched with the cathode electrolytic cylinder 321 is formed between the limiting step 3326 and the cathode transmission torch 32; can be when the installation with cathode electrolysis section of thick bamboo 321 downwards support pushing away and embolias connecting sleeve 3131 through the block 3324 for the installation is more swift convenient, simultaneously, cooperatees with the upper end of cathode electrolysis section of thick bamboo 321 through spacing step 3326, makes cathode electrolysis section of thick bamboo 321 can imbed in the spacing caulking groove, guarantees the stability of cathode electrolysis copper installation, and apopore 3325 is corresponding with delivery port 331, can make the smooth and easy discharge of waste liquid after the electrolysis.
An upper sealing gasket 3331 is arranged between the cathode transmission torch 32 and the upper insulating tube 333, a fixed flange 3332 connected with the cathode transmission torch 32 is arranged at the bottom of the upper insulating tube 333, corresponding second connecting holes are formed in the fixed flange 3332 and the mounting flange 322 positioned at the top of the cathode transmission torch 32, and the bolt assemblies are penetrated in the first connecting holes, so that the fixed connection of the cathode transmission torch 32 and the cathode transmission torch is realized, and the arrangement of the upper sealing gasket 3331 and the flange connection can improve the connection tightness of the upper insulating tube 333 and the cathode transmission torch 32.
In some embodiments, the waste liquid circulation tank 2 may be further connected to a main liquid supply pipe, and a plurality of liquid supply branches sequentially connected to the water inlets 312 of the electrolytic devices 3 are connected to the main liquid supply pipe, so as to synchronously supply liquid to the plurality of electrolytic devices 3, and correspondingly, the water outlets 331 of the electrolytic devices 3 are respectively connected to the circulation pipe 5 through the circulation branches.
When the waste liquid is treated, the waste liquid enters the pretreatment tank 1 from the waste liquid storage tank, the pretreatment reagent is pre-stored in the pretreatment tank 1, the waste liquid is subjected to sedimentation filtration pretreatment in the pretreatment tank 1 to remove impurities or foreign ions in the waste liquid, then the waste liquid is pumped into the waste liquid circulation tank 2 by the first conveying pump 23, the first conveying pump 23 stops running after the waste liquid is conveyed to a preset liquid level, the first electric control valve 22 is closed, the second electric control valve 51 is opened, the second conveying pump 41 is started, the third electric control valve 63 is closed, the third conveying pump 62 stops running, the waste liquid sequentially passes through the copper materials 34 at the deposition positions of the electrolytic treatment in each electrolytic device 3, the discharge standard is reached after the concentration of the waste liquid is detected to be reduced to a preset low concentration by the ion detector 24, the second electric control valve 51 is closed, the third conveying pump 62 is started, the third electric control valve 63 is opened, the waste liquid after the electrolytic treatment is finished can be discharged into the waste liquid collection tank 6 to be collected, and finally the waste liquid treatment center is conveyed to be subjected to centralized treatment and discharged; through circulating the waste liquid in the waste liquid circulating tank 2 and the electrolytic device 3 to flow back and forth and carry out electrolytic treatment, the waste liquid with low metal concentration can be subjected to electrolytic treatment, the recovery treatment of the copper material 34 is effectively realized, and the electrolytic recovery effect is better.
The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (10)
1. A copper-containing waste liquid comprehensive treatment system for printed circuit board processing is characterized by comprising:
the pretreatment tank is connected with the waste liquid storage tank and is used for carrying out sedimentation filtration pretreatment on impurities in the waste liquid;
the waste liquid circulating tank is connected with the pretreatment tank through a first infusion tube, a first electric control valve and a first delivery pump are arranged on the first infusion tube, and an ion detector for detecting the concentration of copper ions is arranged in the waste liquid circulating tank;
the electrolysis module is connected with the waste liquid circulation tank through a second infusion tube, the electrolysis module comprises a plurality of electrolysis devices connected in series, the electrolysis devices are used for electrolytically depositing copper ions to form copper materials, a water inlet and a water outlet are arranged on the electrolysis devices, the water inlet and the water outlet of the adjacent electrolysis devices are connected, the water outlet of the last electrolysis device is connected with the waste liquid circulation tank through a circulation tube, a second delivery pump is arranged on the second infusion tube, and a second electric control valve is arranged on the circulation tube;
the waste liquid collecting tank is connected with the water outlet of the last electrolysis device in the electrolysis module through a third infusion tube, a third delivery pump and a third electric control valve are arranged on the third infusion tube, and the waste liquid collecting tank is connected to a waste liquid treatment center.
2. The integrated copper-containing waste liquid treatment system for printed circuit board processing according to claim 1, wherein a liquid level sensor is further arranged in the waste liquid circulation tank, and when the liquid level sensor detects that the waste water in the waste liquid circulation tank reaches a preset liquid level, the first electric control valve is closed, and the first conveying pump is stopped.
3. The integrated copper-containing waste liquid treatment system for printed circuit board processing according to claim 1, wherein a hoisting mechanism is further arranged right above the electrolysis module, and the hoisting mechanism adopts a truss crane.
4. The integrated copper-containing waste liquid treatment system for printed circuit board processing according to claim 1, wherein temperature sensors are provided in the pretreatment tank, the waste liquid circulation tank and the waste liquid collection tank.
5. The integrated copper-containing waste liquid treatment system for printed circuit board processing according to claim 1, wherein the electrolysis device comprises:
the anode electrolysis column is used as an electrolysis anode, and a water inlet is formed in the conductive base;
the cathode transmission torch is hermetically connected with the conductive base, a cathode electrolysis cylinder sleeved outside the anode electrolysis column and used as an electrolysis cathode is arranged in the cathode transmission torch, and the anode electrolysis column interacts with the cathode electrolysis cylinder to electrolyze the waste liquid and deposit copper ions on the inner wall of the anode electrolysis cylinder; the method comprises the steps of,
the sealing cover assembly is connected with the cathode flashlight in a sealing mode, a water outlet is formed in the sealing cover assembly, and an openable top cover is arranged at the top of the sealing cover assembly.
6. The integrated copper-containing waste printed circuit board processing system of claim 5, wherein the conductive base comprises: the cathode electrolytic tube comprises a conductive connecting disc, a lower insulating tube, an anode electricity transmission plate, an electric connection sheet and a cathode electricity transmission plate, wherein the lower insulating tube is connected with the conductive connecting disc in a sealing mode, the anode electricity transmission plate is electrically connected with the conductive connecting disc, the electric connection sheet is borne on the lower insulating tube and is used for being electrically connected with the cathode electrolytic tube, the cathode electricity transmission plate is connected with the electric connection sheet, and the water inlet is formed in the lower insulating tube.
7. The integrated copper-containing waste liquid treatment system for printed circuit board processing according to claim 6, wherein the cathode electricity transfer plate is C-shaped, and a connection part connected with the anode electricity transfer plate is provided at a lower part of the cathode electricity transfer plate.
8. The integrated copper-containing waste liquid treatment system for printed circuit board processing according to claim 6, wherein a connecting sleeve is arranged in the middle of the conductive connecting disc, and the anode electrolysis column is inserted and fixed on the connecting sleeve; the upper end of the lower insulating tube is provided with a limit sleeve, and the cathode electrolytic tube is sleeved and fixed on the limit sleeve.
9. The integrated copper-containing waste printed circuit board processing system of claim 5, wherein the sealing cover assembly comprises: the cathode flashlight comprises an upper insulating tube connected with the cathode flashlight in a sealing mode, and a connecting structure arranged at the top of the upper insulating tube, wherein the top cover is detachably connected with the upper insulating tube through the connecting structure, and the water outlet is formed in the upper insulating tube.
10. The integrated copper-containing waste treatment system for printed circuit board processing according to claim 9, wherein the connection structure comprises: the fixing section is fixed at the top of the upper insulating tube, the first rotary buckles are arranged on the fixing section in a surrounding mode, and the second rotary buckles are arranged on the top cover and matched with the first rotary buckles;
the outer fringe of top cap is provided with the go-between, the rotatory buckle of second set up in the inner wall of go-between, just be equipped with on the go-between a plurality of with the corresponding dismantlement mouth of first rotatory buckle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320153297.XU CN219314769U (en) | 2023-02-03 | 2023-02-03 | Comprehensive treatment system for copper-containing waste liquid in printed circuit board processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320153297.XU CN219314769U (en) | 2023-02-03 | 2023-02-03 | Comprehensive treatment system for copper-containing waste liquid in printed circuit board processing |
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| Publication Number | Publication Date |
|---|---|
| CN219314769U true CN219314769U (en) | 2023-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320153297.XU Active CN219314769U (en) | 2023-02-03 | 2023-02-03 | Comprehensive treatment system for copper-containing waste liquid in printed circuit board processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219314769U (en) |
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2023
- 2023-02-03 CN CN202320153297.XU patent/CN219314769U/en active Active
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