CN111389801B - Automatic cleaning water-saving device and cleaning method for electroplating production - Google Patents
Automatic cleaning water-saving device and cleaning method for electroplating production Download PDFInfo
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- CN111389801B CN111389801B CN202010299803.7A CN202010299803A CN111389801B CN 111389801 B CN111389801 B CN 111389801B CN 202010299803 A CN202010299803 A CN 202010299803A CN 111389801 B CN111389801 B CN 111389801B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D21/00—Processes for servicing or operating cells for electrolytic coating
- C25D21/16—Regeneration of process solutions
- C25D21/18—Regeneration of process solutions of electrolytes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
- Nozzles (AREA)
- Coating Apparatus (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
The invention discloses an automatic cleaning water-saving device and method for electroplating production, and belongs to the technical field of electroplating equipment. The device mainly comprises a plating tank, a recovery tank, a cleaning tank and a PLC automatic control system, wherein the recovery tank is communicated with the plating tank, a concentration evaporator is arranged at the joint of the recovery tank and the recovery tank, the concentration evaporator is arranged at the positions of the plating tank and the recovery tank, the cleaning liquid recovered in the recovery tank is concentrated, and after the concentration liquid reaches a certain concentration, the concentrated liquid is discharged into the plating tank again to be reused as electroplating liquid; because the cleaning water consumption is far greater than the volatilization loss of the plating solution in the electroplating production process, the liquid level meters are arranged in the plating tank and the recovery tank, and the PLC automatic control system can automatically control the evaporation capacity and the spraying water consumption of atomization spraying according to the liquid level change of the recovery tank and the plating tank, so that the plating tank and the recovery tank keep the liquid level balance, and overflow caused by excessive tank liquid in the recovery tank is prevented.
Description
Technical Field
The invention belongs to the technical field of electroplating equipment, and particularly relates to an automatic cleaning water-saving device and a cleaning method for electroplating production.
Background
Electroplating is a process of plating a thin layer of other metals or alloys on the surface of some metals by utilizing the electrolysis principle, and is a process of adhering a metal film on the surface of the metal or other material parts by utilizing the electrolysis so as to play roles of preventing the oxidation of the metal, improving the wear resistance, the conductivity, the reflectivity, the corrosion resistance (such as copper sulfate) and the like, and improving the attractiveness.
The cleaning of the plating parts is an important link of electroplating production, the poor cleaning effect not only can affect the electroplating quality, but also can pollute the plating solution of the next procedure, the existing cleaning of the plating parts lacks an effective automatic water control means, and excessive cleaning water is often used, so that serious water resource waste is caused, and therefore, the reasonable and effective automatic water control means is important for solving the water resource waste problem.
The electric water control technology is a method for realizing automatic control of water supply and drainage of cleaning water by adjusting the electric conductivity of the cleaning water, and the working principle is that the concentration of plating solution in the cleaning water is positively related to the electric conductivity of the plating solution, the concentration of the plating solution in the cleaning water is monitored by an electric conductivity sensor, when the electric conductivity in the cleaning water exceeds a maximum allowable value, a water supply valve is opened to supply fresh water, and when the electric conductivity of the cleaning water is lower than a set value, an electromagnetic valve is closed to stop water supply.
The conventional electroplating cleaning device cannot reasonably recycle cleaning water, so that a great deal of water resources are wasted, and a plating part cleaning device which saves water resources and has good cleaning effect is needed.
Disclosure of Invention
Aiming at the problems, the invention provides an automatic cleaning water-saving device and a cleaning method for electroplating production.
The technical scheme of the invention is as follows: an automatic cleaning water-saving device for electroplating production mainly comprises a plating tank, a recovery tank communicated with the plating tank and provided with a concentration evaporator at the joint, a plurality of cleaning tanks communicated in sequence, and a PLC automatic control system electrically connected with each electric element;
the plating tank and the recovery tank are internally provided with liquid level meters, the recovery tank and the plurality of cleaning tanks are internally provided with spraying devices, and the cleaning tanks positioned at two sides are internally provided with conductivity meters respectively;
the concentrating evaporator comprises a weak electrolyte box connected with the recovery tank, a weak electrolyte element arranged in the weak electrolyte box, a heat exchanger communicated with the weak electrolyte box, a concentrating box body which is communicated with the heat exchanger and is internally sleeved with a plurality of sub-boxes to form a plurality of concentrating cavities, the weak electrolyte element comprises a rectifier, an anode plate electrically connected with the rectifier and a cathode plate electrically connected with the rectifier, a plurality of water through holes are uniformly formed in the side wall of the sub-box, a heating ring is spirally arranged outside each sub-box, the bottom end of each sub-box is communicated with the plating tank through a connecting pipe, an air outlet communicated with the heat exchanger is formed in the upper end of the concentrating box, and an exhaust fan is arranged at the air outlet.
Further, spray set includes two pairs of relatively locate in recovery tank and the washing tank and the side wall of opposite side evenly is equipped with the spraying knot dish of a plurality of atomizer, take out outside water source to spray in the knot dish and through a plurality of atomizer sprays the high pressure suction pump to plating the piece surface, carries out the heater that heats to the water source, spray on the knot dish keep away from atomizer one side be equipped with recovery tank and washing tank side wall fixed connection cut fork, will spray knot dish and recovery tank and washing tank inner wall connection through cutting fork, can be according to the size adjustment of plating piece to spray the distance between the knot dish of spraying relatively, thereby adjust the spraying distance to plating the piece surface, heat the liquid that needs to spray through the heater, increased the cleaning performance.
Further, be equipped with high-pressure stripping device in the recovery tank, high-pressure stripping device include to outside air filter, with the filter pass through the high-pressure aspiration pump that the connecting pipe is connected, one end with high-pressure aspiration pump is connected and the other end is equipped with a plurality of jet-propelled discs that run through spray knot dish and extend to outside branch pipe, a plurality of the branch pipe end is equipped with a plurality of air nozzles, and a plurality of the air nozzles are two for a set of around establishing with every atomizer periphery, through the pure high-pressure gas of air nozzle with every atomizer spout to plating a surface carry liquid and electroplating solution blow off, and then reduce follow-up washing water consumption, energy saving and emission reduction.
Further, the washing tank includes washing inner wall, washs the outer wall, locates wash the outside constant temperature heater of inner wall, wash and form the heating heat preservation chamber between inner wall, the washing outer wall, the heating heat preservation intracavity wall pastes and is equipped with the heat preservation, heats up the washing liquid in every washing tank through constant temperature heater, increases the cleaning performance, improves cleaning efficiency, increases the reliability of device.
Further, the heat preservation layer is made of rubber and plastic heat preservation materials, and the rubber and plastic heat preservation materials are made of elastic closed-cell elastic materials, so that the heat preservation layer is cold-resistant, heat-resistant, flame-retardant, waterproof and low in heat conductivity, and not only is the heat preservation effect greatly improved, but also the heat preservation layer is long in service life, safe and reliable.
Further, be connected through the connecting pipe between two adjacent washing tanks, washing tank and the recovery tank and between recovery tank and the coating bath, and the junction is equipped with drawing liquid pump, electronic flowmeter and solenoid valve, through the cooperation control water flow between each groove of drawing liquid pump, electronic flowmeter and solenoid valve, avoid each inslot to cause overflow or rivers less because of rivers are too big, influence the coating cleaning performance.
Further, the PLC automatic control system comprises a PLC controller connected with an external control unit through wireless signals, a touch operation screen electrically connected with the PLC controller, an alarm device electrically connected with the PLC controller, monitoring elements electrically connected with the PLC controller and used for monitoring working conditions in each element and the tank body, and a power supply electrically connected with each electric element, wherein the PLC automatic control system is used for carrying out centralized control on the working flow of the whole device, so that the stability and the intelligence of the operation of the device are improved, meanwhile, the monitoring elements are used for conveniently and intuitively observing the working conditions in each element and the tank body, the fault positions are conveniently and rapidly attended, the workload of workers is reduced, and the working efficiency is improved.
Still further, all be equipped with jet stirring device in every washing tank, jet stirring device is including vertical breather pipe, the symmetric distribution that belongs to in the washing tank and run through the hollow stirring rake of breather pipe lateral wall, with the outside through the aspiration pump in the breather pipe, hollow stirring rake is equipped with a plurality of jet holes, and every jet hole department is equipped with rotary vane, through the aspiration pump with outside air pump to the breather pipe in, then flow out through a plurality of jet holes on the hollow stirring rake, simultaneously, under the effect of air current, drive rotary vane and rotate the stirring to the washing liquid, avoid not only causing the detection error of conductivity meter because of washing liquid concentration.
The method for cleaning the plating part by utilizing the automatic cleaning water-saving device for electroplating production mainly comprises the following steps:
(1) When a plating piece is placed in the recovery tank, the PLC controller controls a hydraulic rod on the shearing fork frame to work so as to drive the shearing fork frame to extend, two spraying button plates which are oppositely arranged are close to the plating piece, the PLC controller controls the high-pressure water suction pump to pump an external water source into the spraying button plates through the connecting pipe and spray the external water source onto the surface of the plating piece through the plurality of atomizing nozzles, so that plating liquid on the surface of the plating piece is cleaned, and meanwhile, the PLC controller starts the high-pressure air suction pump to spray pure high-pressure air to blow off liquid and plating liquid carried by each atomizing nozzle onto the surface of the plating piece;
(2) When the plating pieces are sequentially placed into each cleaning tank, the PLC controls the hydraulic rods on the shearing fork frame to work, so that the shearing fork frame is driven to extend, two relatively arranged spraying buckling plates are close to the plating pieces, the PLC controls the high-pressure water suction pump to pump an external water source into the spraying buckling plates through the connecting pipes and spray the external water source onto the surfaces of the plating pieces through the plurality of atomizing nozzles, the plating liquid on the surfaces of the plating pieces is further cleaned, after the cleaning is finished, the PLC controls the hydraulic press to work, so that the shearing fork frame is driven to compress, the relatively arranged two spraying buckling plates are far away from the plating pieces, and then the plating pieces are taken out;
(3) The conductivity in the first recovery tank and the last recovery tank is measured by using a conductivity meter, when the conductivity meter detects that the conductivity in the first recovery tank is excessively fast in increasing amplitude, the PLC can automatically increase the spraying water quantity of a spraying device in the recovery tank and the blowing-off air quantity of a high-pressure blowing-off device, when the conductivity meter detects that the conductivity concentration in the last recovery tank is more than 100us/cm, the cleaning liquid in the first recovery tank is discharged, then the cleaning liquid in the second recovery tank is pumped into the first recovery tank through a liquid pump, the cleaning liquid in the third recovery tank is pumped into the second recovery tank through a liquid pump, and the like until the cleaning liquid in the last recovery tank is pumped into the previous recovery tank through the liquid pump, and then pure water is injected into the last recovery tank;
(4) The cleaning water after multi-stage countercurrent rinsing is collected in the recovery tank, enters the concentration tank body after passing through the concentration evaporator, enters the innermost sub-tank body after entering the concentration tank body, diffuses outwards through the water through holes in the side wall of the innermost sub-tank body, then sequentially passes through the sub-tank bodies from inside to outside, the PLC controller controls the heating ring to start, the cleaning water in each sub-tank body is heated, steam generated after heating enters the concentration tank body again to be heated, and when the conductivity of the cleaning water in the concentration tank body is the same as the required concentration of the plating solution, the plating solution is injected into the plating tank for repeated use.
The beneficial effects of the invention are as follows: the invention provides an automatic cleaning water-saving device and a cleaning method for electroplating production, which have the following advantages:
1. according to the invention, the concentration evaporators are arranged at the plating tank and the recovery tank to concentrate the cleaning water recovered in the recovery tank, and after the concentration of the concentrated solution reaches a certain concentration, the concentrated solution is discharged into the plating tank again to be used as the electroplating solution again.
2. According to the invention, the spray device is arranged to clean the plating solution on the surface of the plating piece, the high-pressure stripping device is utilized to sweep the surface of the cleaned plating piece, the combined action of high-pressure stripping and atomization spraying is utilized to greatly reduce the plating solution amount and the plating solution concentration carried out on the surface of the plating piece, when the atomization spraying is carried out, the distance between two opposite spraying button plates can be adjusted according to the size of the plating piece, so that the spraying distance on the surface of the plating piece is adjusted, and the heater is utilized to heat the liquid to be sprayed, thereby improving the cleaning effect.
3. According to the cleaning device, the heating element is added in the cleaning tank to heat the cleaning liquid, so that the cleaning effect is improved, and the good heat-insulating layer is utilized to reduce the heat loss of the cleaning liquid, so that the reliability of the cleaning efficiency increasing device is improved.
4. Because the water consumption for cleaning is far greater than the volatilization loss of the plating solution in the electroplating production process, the liquid level meters are arranged in the plating tank and the recovery tank, and the PLC automatic control system can automatically control the evaporation capacity of the concentration evaporator and the spraying water consumption of atomization spraying according to the liquid level change of the recovery tank and the plating tank, so that the liquid level balance of the plating tank and the recovery tank is maintained, and overflow of the tank liquid of the recovery tank is prevented.
5. According to the invention, the jet stirring device is arranged in the cleaning tank to stir the cleaning liquid, so that the detection error of the conductivity meter caused by the concentration of the cleaning liquid is avoided.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure of the concentrating evaporator of the present invention;
FIG. 3 is a schematic view of the installation of the spray device of the present invention in a recovery tank;
fig. 4 is a schematic view showing the internal structure of the cleaning tank of the present invention;
FIG. 5 is a schematic view showing the internal structure of the cleaning tank of the present invention;
FIG. 6 is a schematic view of the structure of a rotary blade of the present invention;
fig. 7 is an electrical connection diagram of the present invention.
Wherein, 1-plating tank, 2-recovery tank, 20-concentrated evaporator, 200-weak electrolyte tank, 201-weak electrolyte element, 2010-rectifier, 2011-anode plate, 2012-cathode plate, 202-heat exchanger, 203-concentrated tank, 2030-sub tank, 2031-concentrating cavity, 2032-water through hole, 2033-heating ring, 204-air outlet, 2040-exhaust fan, 21-high pressure stripping device, 210-filter, 211-high pressure suction pump, 212-jet tray, 2120-branch pipe, 2121-air nozzle, 3-cleaning tank, 30-conductivity meter, 32-cleaning inner wall, 33-cleaning outer wall, 34-constant temperature heater, 35-heating heat preservation cavity, 350-heat preservation layer, 36-jet stirring device, 360-vent pipe, 361-hollow stirring paddle, 3610-jet hole, 3611-rotating blade, 362-pump, 4-PLC automatic control system, 40-PLC controller, 41-touch operation screen, 42-alarm device, 43-monitoring element, 44-power supply, 5-liquid level meter, 60-jet meter, 60-fork carriage, 60-62-sprayer, electromagnetic valve, spray head, 600-sprayer, spray head, 600-water pump, spray head, and spray head, 601-sprayer.
Detailed Description
Example 1
The automatic cleaning water-saving device for electroplating production as shown in fig. 1 mainly comprises a plating tank 1, a recovery tank 2 which is communicated with the plating tank 1 and is provided with a concentration evaporator 20 at the joint, three cleaning tanks 3 which are communicated in sequence, and a PLC automatic control system 4 which is electrically connected with each electric element;
the plating tank 1 and the recovery tank 2 are respectively provided with a liquid level meter 5, the recovery tank 2 and the three cleaning tanks 3 are respectively provided with a spraying device 6, the cleaning tanks 3 positioned at two sides are respectively provided with a conductivity meter 30, wherein the liquid level meter 5 is a SIN-DP ultrasonic liquid level meter, and the conductivity meters 30 are Keruida CCT-5300E5310E5320E5320 series conductivity meters;
as shown in fig. 2, the concentrating evaporator 20 comprises a weak electrolyte tank 200 connected with a recovery tank 2, a weak electrolyte element 201 arranged in the weak electrolyte tank 200, a heat exchanger 202 communicated with the weak electrolyte tank 200, a concentrating tank 203 which is communicated with the heat exchanger 202 and internally sleeved with 3 sub-tanks 2030 and forms 3 concentrating chambers 2031, the weak electrolyte element 201 comprises a rectifier 2010, an anode plate 2011 electrically connected with the rectifier 2010, a cathode plate 2012 electrically connected with the rectifier 2010, 20 water through holes 2032 are uniformly formed in the side wall of the sub-tank 2030, a heating ring 2033 is spirally arranged outside each sub-tank 2030 and the bottom end of each sub-tank 2030 is communicated with the plating tank 1 through a connecting pipe, an air outlet 204 communicated with the heat exchanger 202 is arranged at the upper end of the concentrating tank 203, and an exhaust fan 2040 is arranged at the air outlet 204, wherein the rectifier 2010 is a 100-300A PWM high-frequency air-cooled rectifier, the heating ring 2033 is a ceramic heating ring 202 produced by a salt city mechanical equipment limited company, and the heat exchanger 2030 is produced by a limited sea heating device Zhuang Hua;
as shown in fig. 7, the PLC automatic control system 4 includes a PLC controller 40 connected with an external control unit through a wireless signal, a touch operation screen 41 electrically connected with the PLC controller 40, an alarm device 42 electrically connected with the PLC controller 40, a monitoring element 43 electrically connected with the PLC controller 40 and used for monitoring working conditions in each element and the tank, and a power supply 44 electrically connected with each electrical element, wherein the PLC automatic control system 4 centrally controls the working flow of the whole device, increases the stability and intelligence of the operation of the device, and simultaneously, the monitoring element 43 facilitates visual observation of the working conditions in each element and the tank, facilitates quick care of fault positions, reduces the workload of workers, improves the working efficiency, the PLC controller 40 is a STM32 single chip microcomputer, the model of the touch operation screen 41 is PWS6a00T-P, the alarm device 42 is a microcomputer language alarm device of ENR-SW, the monitoring element 43 is of WP 4MM, and the power supply 44 is a power supply cabinet of ZXDU 58W 121;
as shown in fig. 4, the spraying device 6 includes a pair of spraying button plates 60 which are oppositely arranged in the recovery tank 2 and the cleaning tank 3 in pairs, and are uniformly provided with 10 spray nozzles 600 on the side walls on the opposite sides, a high-pressure water pump 61 which pumps an external water source into the spraying button plates 60 through a connecting pipe and sprays the water source to the surface of a plating workpiece through the 10 spray nozzles 600, a heater 62 which heats the water source, a fork frame 601 which is fixedly connected with the recovery tank 2 and the side walls of the cleaning tank 3 is arranged on one side, far away from the spray button plates 60, of the recovery tank 2 and the inner walls of the cleaning tank 3, the distance between the two opposite spraying button plates 60 is adjusted through the fork frame 601, so that the spraying distance to the surface of the plating workpiece can be adjusted, the liquid to be sprayed is heated through the heater 62, the cleaning effect is increased, the model of the high-pressure water pump 61 is RFCS-75, the heater 62 is a liquid pipeline type heater, and the model of the fork frame 601 is JLG 4394RT.
Example 2
This embodiment is substantially the same as embodiment 1 except that:
as shown in fig. 3, a high-pressure stripping device 21 is disposed in the recovery tank 2, the high-pressure stripping device 21 includes a filter 210 for filtering external air, a high-pressure pump 211 connected to the filter 210 through a connection pipe, an air injection plate 212 having one end connected to the high-pressure pump 211 and the other end provided with 30 branches 2120 extending to the outside through the spray button plate 60, a plurality of air nozzles 2121 are disposed at the ends of the 30 branches 2120, two of the 30 air nozzles 2121 are wound around the periphery of each atomizer 600, and pure high-pressure air passing through the air nozzles 2121 blows out the liquid and plating solution carried by spraying each atomizer 600 onto the surface of the plating part, thereby reducing the water consumption for subsequent cleaning, saving energy and reducing emission, wherein the model of the high-pressure pump 211 is 2BH1510-7HH46, and the filter 210 is a plate-type primary filter produced by a national group.
Example 3
This embodiment is substantially the same as embodiment 2 except that:
as shown in fig. 5, the cleaning tank 3 includes a cleaning inner wall 32, a cleaning outer wall 33, and a constant temperature heater 34 disposed outside the cleaning inner wall 32, a heating insulation cavity 35 is formed between the cleaning inner wall 32 and the cleaning outer wall 33, an insulation layer 350 is adhered to the inner wall of the heating insulation cavity 35, the cleaning liquid in each cleaning tank 3 is heated by the constant temperature heater 34, the cleaning effect is increased, the cleaning efficiency is improved, the reliability of the device is improved, the insulation layer 350 is made of a rubber and plastic insulation material, the rubber and plastic insulation material is made of an elastic closed-cell elastic material, and has the excellent performances of cold resistance, heat resistance, flame retardance, water resistance and low heat conductivity, the insulation effect is greatly improved, the service life is long, and the constant temperature heater 34 is safe and reliable, wherein the model number of the constant temperature heater 34 is JR-12C.
Example 4
This embodiment is substantially the same as embodiment 3 except that:
as shown in fig. 1, two adjacent cleaning tanks 3, cleaning tank 3 and recovery tank 2 and plating tank 1 are connected through the connecting pipe, and the junction is equipped with drawing liquid pump 7, electronic flowmeter 8 and solenoid valve 9, through drawing liquid pump 7, electronic flowmeter 8 and solenoid valve 9's cooperation control the water flow between each groove, avoid each inslot to cause overflow or rivers less because of the rivers is too big, influence plating cleaning performance, wherein drawing liquid pump 7 model is MP-RM, electronic flowmeter 8 model is ldGC-MIK.
Example 5
This embodiment is substantially the same as embodiment 4 except that:
as shown in fig. 1 and 6, each cleaning tank 3 is internally provided with a jet stirring device 36, the jet stirring device 36 comprises a vent pipe 360 vertically belonging to the cleaning tank 3, hollow stirring paddles 361 symmetrically distributed and penetrating through the side wall of the vent pipe 360, and an air pump 362 for pumping the outside into the vent pipe 360, wherein the hollow stirring paddles 361 are provided with 20 jet holes 3610, each jet hole 3610 is provided with a rotary blade 3611, external air is pumped into the vent pipe 360 through the air pump 362, and then flows out through 18 jet holes 3610 on the hollow stirring paddles 361, and meanwhile, under the action of air flow, the rotary blades 3611 are driven to rotate to stir cleaning liquid, so that the detection error of the conductivity meter 30 caused by the concentration of the cleaning liquid is avoided, wherein the model of the air pump 362 is VP1500.
The method for cleaning the plating part by utilizing the automatic cleaning water-saving device for electroplating production mainly comprises the following steps:
(1) When a plating piece is placed in the recovery tank 2, the PLC controller 40 controls a hydraulic rod on the shearing fork frame 601 to work, so that the shearing fork frame 601 is driven to extend, two relatively arranged spraying buckling plates 60 are close to the plating piece, the PLC controller 40 controls the high-pressure water pump 61 to pump an external water source into the spraying buckling plates 60 through a connecting pipe and spray the external water source onto the surface of the plating piece through 10 atomizing spray heads 600, so that plating liquid on the surface of the plating piece is cleaned, and meanwhile, the PLC controller 40 starts the high-pressure air pump 211 to spray pure high-pressure air to blow off liquid and plating liquid carried on the surface of the plating piece by each atomizing spray head 600;
(2) When the plating pieces are sequentially placed in each cleaning tank 3, the PLC controller 40 controls the hydraulic rods on the shearing fork frame 601 to work so as to drive the shearing fork frame 601 to extend, the two relatively arranged spraying buckling plates 60 are close to the plating pieces, the PLC controller 40 controls the high-pressure water suction pump 61 to pump an external water source into the spraying buckling plates 60 through connecting pipes and spray the external water source onto the surfaces of the plating pieces through 10 atomizing nozzles 600, the plating pieces are further cleaned, after the cleaning is finished, the PLC controller 40 controls the hydraulic press 6010 to work so as to drive the shearing fork frame 601 to compress, the two relatively arranged spraying buckling plates 60 are far away from the plating pieces, and then the plating pieces are taken out;
(3) The conductivity meter 30 is used for measuring the conductivity in the first recovery tank 2 and the last recovery tank 2, when the conductivity meter 30 detects that the conductivity in the first cleaning tank 3 increases too fast, the PLC controller 40 can automatically increase the spray water quantity of the spray device 6 and the blowing-off air quantity of the high-pressure blowing-off device 21 in the recovery tank 2, when the conductivity meter 30 detects that the conductivity concentration in the last cleaning tank 3 exceeds 100us/cm, the cleaning liquid in the first cleaning tank 3 is discharged, then the cleaning liquid in the second cleaning tank 3 is pumped into the first cleaning tank 3 through the liquid pump 7, the cleaning liquid in the third cleaning tank 3 is pumped into the second cleaning tank 3 through the liquid pump 7, and then pure water is injected into the third cleaning tank 3;
(4) When the cleaning solution subjected to three-stage countercurrent rinsing is collected in the recovery tank 2 and passes through the concentration evaporator 20, the cleaning solution enters the weak electrolytic tank 200, weak electrolytic treatment is carried out on the cleaning solution by utilizing a weak electrolytic loop between the anode plate 2011 and the cathode plate 2012, impurities in the cleaning solution are removed, the cleaning solution enters the concentration tank 203 after passing through the heat exchanger 202, the cleaning solution enters the innermost sub-tank 2030 after entering the concentration tank 203, is diffused to the outside through the water through holes 2032 on the side wall of the innermost sub-tank 2030, and then sequentially passes through the sub-tanks 2030 from the inside to the outside, the PLC controller 40 controls the heating rings 2033 to start, the cleaning solution in each sub-tank 2030 is heated, steam generated after heating is re-entered into the concentration tank 203 to be heated, and when the conductivity of the cleaning solution in the concentration tank 203 is the same as the required concentration of the plating solution, the plating solution is discharged into the plating tank 1 for repeated use.
Claims (4)
1. The automatic cleaning water-saving device for electroplating production is characterized by comprising a plating tank (1), a recovery tank (2) which is communicated with the plating tank (1) and is provided with a concentration evaporator (20) at the joint, a plurality of cleaning tanks (3) which are communicated in sequence, and a PLC automatic control system (4) which is electrically connected with each electric element;
the plating tank (1) and the recovery tank (2) are internally provided with liquid level meters (5), the recovery tank (2) and the plurality of cleaning tanks (3) are internally provided with spraying devices (6), and the cleaning tanks (3) positioned at the two sides are respectively provided with a conductivity meter (30);
the concentrating evaporator (20) comprises a weak electrolysis box body (200) connected with the recovery tank (2), a weak electrolysis element (201) arranged in the weak electrolysis box body (200), a heat exchanger (202) communicated with the weak electrolysis box body (200), a plurality of sub-box bodies (2030) communicated with the heat exchanger (202) and sleeved inside the heat exchanger, and a concentrating box body (203) forming a plurality of concentrating cavities (2031), wherein the weak electrolysis element (201) comprises a rectifier (2010), an anode plate (2011) electrically connected with the rectifier (2010) and a cathode plate (2012) electrically connected with the rectifier (2010), a plurality of water holes (2032) are uniformly formed in the side wall of the sub-box bodies (2030), a heating ring (2033) is spirally arranged outside each sub-box body (2030), the bottom end of each sub-box body (2030) is communicated with the plating tank (1) through a connecting pipe, an air outlet (204) communicated with the heat exchanger (202) is arranged at the upper end of the concentrating box body (203), and an air exhauster (2040) is arranged at the air outlet;
the spraying device (6) comprises spraying buckling plates (60) which are arranged in the recovery tank (2) and the cleaning tank (3) in pairs, wherein a plurality of atomizing spray heads (600) are uniformly arranged on the side walls of opposite sides of the spraying buckling plates, an external water source is pumped into the spraying buckling plates (60) through connecting pipes and sprayed to a high-pressure water suction pump (61) on the surface of a plating part through a plurality of atomizing spray heads (600), and a heater (62) for heating the water source, wherein a shearing fork frame (601) fixedly connected with the side walls of the recovery tank (2) and the cleaning tank (3) is arranged on one side, far away from the atomizing spray heads (600), of the spraying buckling plates (60);
the recovery tank (2) is internally provided with a high-pressure stripping device (21), the high-pressure stripping device (21) comprises a filter (210) for filtering external air, a high-pressure air pump (211) connected with the filter (210) through a connecting pipe, an air injection disc (212) with one end connected with the high-pressure air pump (211) and the other end provided with a plurality of branch pipes (2120) penetrating through the spray buckling disc (60) and extending to the outside, the tail ends of the plurality of branch pipes (2120) are provided with a plurality of air nozzles (2121), and the two air nozzles (2121) are wound on the periphery of each atomizing spray head (600) in a group;
the two adjacent cleaning tanks (3), the cleaning tank (3) and the recovery tank (2) and the plating tank (1) are connected through connecting pipes, and a liquid pump (7), an electronic flowmeter (8) and an electromagnetic valve (9) are arranged at the connecting positions;
the PLC automatic control system (4) comprises a PLC controller (40) connected with an external control unit through wireless signals, a touch operation screen (41) electrically connected with the PLC controller (40), an alarm device (42) electrically connected with the PLC controller (40), a monitoring element (43) electrically connected with the PLC controller (40) and used for monitoring the working conditions of each element and the tank body, and a power supply (44) electrically connected with each electric element.
2. The automatic cleaning and water saving device for electroplating production according to claim 1, wherein the cleaning tank (3) comprises a cleaning inner wall (32), a cleaning outer wall (33) and a constant temperature heater (34) arranged outside the cleaning inner wall (32), a heating and heat preserving cavity (35) is formed between the cleaning inner wall (32) and the cleaning outer wall (33), and a heat preserving layer (350) is adhered to the inner wall of the heating and heat preserving cavity (35).
3. The automatic cleaning and water saving device for electroplating production according to claim 2, wherein the heat insulating layer (350) is made of rubber and plastic heat insulating materials.
4. A method for cleaning a plated item by an automatic cleaning water saving device for plating production according to any one of claims 1 to 3, comprising the steps of:
(1) When a plating piece is placed in the recovery tank (2), the PLC (40) controls a hydraulic rod on the shearing fork frame (601) to work so as to drive the shearing fork frame (601) to extend, two spraying button plates (60) which are oppositely arranged are close to the plating piece, the PLC (40) controls a high-pressure water suction pump (61) to pump an external water source into the spraying button plates (60) through connecting pipes and spray the external water source onto the surface of the plating piece through a plurality of atomizing nozzles (600), so as to clean plating liquid on the surface of the plating piece, and meanwhile, the PLC (40) starts a high-pressure air suction pump (211) to pump pure high-pressure air by utilizing the high-pressure air suction pump (211) and spray the pumped pure high-pressure air onto the surface of the plating piece through each atomizing nozzle (600) so as to blow off liquid carried on the surface of the plating piece and the plating liquid;
(2) When the plating pieces are sequentially placed into each cleaning tank (3), the PLC (40) controls the hydraulic rods on the shearing fork frame (601) to work, so that the shearing fork frame (601) is driven to extend, two spraying buckling plates (60) which are oppositely arranged are close to the plating pieces, the PLC (40) controls the high-pressure water suction pump (61) to pump an external water source into the spraying buckling plates (60) through connecting pipes and spray the external water source onto the surfaces of the plating pieces through a plurality of atomizing nozzles (600), the plating pieces are further cleaned, after cleaning is finished, the PLC (40) controls the hydraulic rods on the shearing fork frame (601) to work, so that the shearing fork frame (601) is driven to compress, the two spraying buckling plates (60) which are oppositely arranged are far away from the plating pieces, and then the plating pieces are taken out;
(3) Measuring the conductivity in the first and last cleaning tanks (3) by using a conductivity meter (30), when the conductivity meter (30) detects that the conductivity in the first cleaning tank (3) is excessively fast, automatically increasing the spray water quantity of a spray device (6) and the blowing-off air quantity of a high-pressure blowing-off device (21) in a recovery tank (2) by a PLC (40), discharging the cleaning liquid in the first cleaning tank (3) when the conductivity meter (30) detects that the conductivity concentration in the last cleaning tank (3) exceeds 100us/cm, pumping the cleaning liquid in the second cleaning tank (3) into the first cleaning tank (3) through a liquid pump (7), pumping the cleaning liquid in the third cleaning tank (3) into the second cleaning tank (3) through the liquid pump (7), and then analogizing until the cleaning liquid in the last cleaning tank (3) is pumped into the previous cleaning tank (3) through the liquid pump (7), and injecting pure water into the last cleaning tank (3);
(4) The cleaning solution after multi-stage countercurrent rinsing is collected in the recovery tank (2), enters the concentration tank body (203) after passing through the concentration evaporator (20), enters the innermost sub-tank body (2030) after entering the concentration tank body (203), diffuses outwards through the water through holes (2032) on the side wall of the innermost sub-tank body (2030), sequentially passes through the sub-tank bodies (2030) from inside to outside, the PLC (40) controls the heating rings (2033) to start, the cleaning solution in each sub-tank body (2030) is heated, steam generated after heating enters the concentration tank body (203) again to be heated, and the plating solution is injected into the plating tank (1) for repeated use when the conductivity of the cleaning solution in the concentration tank body (203) is the same as the required concentration of the plating solution.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010299803.7A CN111389801B (en) | 2020-04-16 | 2020-04-16 | Automatic cleaning water-saving device and cleaning method for electroplating production |
| JP2020106144A JP6798069B1 (en) | 2020-04-16 | 2020-06-19 | Automatic cleaning of electroplating production Water saving equipment and cleaning method |
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| CN202010299803.7A CN111389801B (en) | 2020-04-16 | 2020-04-16 | Automatic cleaning water-saving device and cleaning method for electroplating production |
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| CN111389801A CN111389801A (en) | 2020-07-10 |
| CN111389801B true CN111389801B (en) | 2023-07-21 |
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| CN112318135B (en) * | 2020-10-27 | 2022-02-08 | 南京美诚铝业科技有限公司 | Drilling and tapping all-in-one machine with deburring function |
| CN112680766B (en) * | 2020-12-10 | 2023-08-04 | 镇江锦兴表面工程技术有限公司 | Uniform immersion liquid device for electroplating of electronic radiator and application method of uniform immersion liquid device |
| CN113305099B (en) * | 2021-05-26 | 2023-06-20 | 苏州市安派精密电子有限公司 | Ultrasonic cleaning device for electroplating production with high cleanliness |
| CN114855255B (en) * | 2022-06-16 | 2023-06-30 | 鹰潭市钲旺科技有限公司 | Electrolytic cleaning production line for tinning wire and processing technology thereof |
| CN115254200A (en) * | 2022-06-17 | 2022-11-01 | 江苏龙净科杰环保技术有限公司 | Novel washing circulation of spent catalyst preliminary treatment device |
| CN115161709A (en) * | 2022-08-19 | 2022-10-11 | 浙江科菲科技股份有限公司 | Intelligent heating, heat-preserving and scalding device of electrolysis system |
| CN117904686B (en) * | 2024-03-18 | 2024-05-17 | 新乡市日恒电气有限公司 | Oxide film electromagnetic winding wire coating device and coating method |
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| CN101230480B (en) * | 2007-10-29 | 2010-06-02 | 山东九鑫机械工具有限公司 | Electroplating reverse-flow rinsing process |
| CN103952751B (en) * | 2014-05-19 | 2017-01-04 | 南京工业大学 | A kind of device electroplating cleaning showers liquid recycle and reuse |
| JP6341877B2 (en) * | 2015-04-03 | 2018-06-13 | 住友金属鉱山株式会社 | Evaporation concentration device |
| CN206109589U (en) * | 2016-09-29 | 2017-04-19 | 广州兴森快捷电路科技有限公司 | Plating bath recovery processing device |
| CN107065947A (en) * | 2017-02-27 | 2017-08-18 | 环境保护部华南环境科学研究所 | The intelligent water-controlled equipment and its automatic control water method of batch (-type) backwash plating piece |
| CN212384155U (en) * | 2020-04-16 | 2021-01-22 | 生态环境部华南环境科学研究所 | Automatic cleaning water-saving device for electroplating production |
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| CN111389801A (en) | 2020-07-10 |
| JP6798069B1 (en) | 2020-12-09 |
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