CN110921884A - Waste liquid treatment system used in electroplating process and working method thereof - Google Patents

Waste liquid treatment system used in electroplating process and working method thereof Download PDF

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Publication number
CN110921884A
CN110921884A CN201911007486.0A CN201911007486A CN110921884A CN 110921884 A CN110921884 A CN 110921884A CN 201911007486 A CN201911007486 A CN 201911007486A CN 110921884 A CN110921884 A CN 110921884A
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liquid
tank
processor
electroplating
water filtering
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CN201911007486.0A
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CN110921884B (en
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金驰
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Guangdong Douyuan Precision Technology Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F2001/007—Processes including a sedimentation step
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
    • 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
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Removal Of Floating Material (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

The invention relates to a waste liquid treatment system used in an electroplating process and a working method thereof, wherein the waste liquid treatment system comprises the following steps: a collection cavity, a processing cavity and a processor; the collecting cavity comprises a liquid baffle plate, and a plurality of liquid inlets are formed in the inner side of the liquid baffle plate; the liquid baffle is provided with a water filtering device, and the water filtering device comprises a water filtering pump and a water filtering port; the strainer is provided with a plurality of water outlets; the water filtering pump is connected with the water filtering pipe; the bottom of the inner side of the liquid baffle plate is provided with a water inlet groove, the water inlet groove is sunken towards the inside of the liquid baffle plate, and a liquid inlet is also arranged in the water inlet groove; a filtering tank, a neutralizing tank and a sedimentation tank are arranged in the treatment cavity; the collecting pipe is connected with the filtering tank; a neutralizing liquid is stored in the neutralizing tank and used for reacting with the electroplating wastewater; a liquid outlet is formed in the bottom of the neutralization pond, a closed door is arranged on the liquid outlet, and the processor outputs an opening signal to the closed door to open the closed door; the sedimentation tank is arranged below the neutralization tank, and after the closed door is opened, the electroplating waste liquid in the neutralization tank is released to the sedimentation tank and is settled in the sedimentation tank.

Description

Waste liquid treatment system used in electroplating process and working method thereof
Technical Field
The invention relates to the field of electroplating waste liquid treatment, in particular to a waste liquid treatment system used in an electroplating process and a working method thereof.
Background
The electroplating waste contains a plurality of main sources which have serious toxicity to organisms and can form an ecological environment to seriously damage the electroplating waste if the electroplating waste is not added and is randomly discharged:
1. cleaning the discharged wastewater: although the pollutant contains low wave amount, the discharge amount is large, so the pollutant cannot be ignored; 2. when the waste solution, the electroplating solution, the cleaning solution and the like lose effectiveness, the waste solution cannot be regenerated, and when the waste solution, the electroplating solution, the cleaning solution and the like are renewed or supplemented and then used, the waste solution must be discarded; 3. unintentional emissions during electroplating, such as leakage, sputtering, etc.; 4. secondary pollutants: discharging the sludge sediment left after the treatment.
However, the conventional waste liquid treatment system cannot accurately collect waste liquid, and has a problem that collection of splashed waste liquid is difficult.
Disclosure of Invention
The purpose of the invention is as follows:
aiming at the technical problems mentioned in the background technology, the invention provides a waste liquid treatment system used in an electroplating process and a working method thereof.
The technical scheme is as follows:
a waste fluid treatment system for use in an electroplating process, comprising: a collection cavity, a processing cavity and a processor;
the collecting cavity comprises a liquid baffle plate, the liquid baffle plate is hollow, the liquid baffle plate is arranged around the electroplating bath in a surrounding mode, the liquid baffle plate is positioned on one side of the electroplating bath and is an inner side, a plurality of liquid inlets are formed in the inner side of the liquid baffle plate, and the liquid inlets are uniformly distributed on the liquid baffle plate;
the liquid baffle is provided with a water filtering device, and the water filtering device comprises a water filtering pump and a water filtering port; the water filtering pump is connected with the processor, the processor outputs a starting signal or a closing signal to the water filtering pump, and the water filtering pump executes starting or closing operation according to an instruction of the processor; the water filtering port is arranged at the top end of the inner part of the liquid baffle plate, a strainer is arranged in the water filtering port, a plurality of water outlets are formed in the strainer, and the water outlets are uniformly distributed on the strainer; the water filtering pump is connected with the water filtering pipe, the water filtering pump outputs diluent to the water filtering pipe, and the water filtering pipe releases the diluent from a water outlet to the surface of the liquid baffle plate;
the bottom of the inner side of the liquid baffle plate is provided with a water inlet groove, the water inlet groove is sunken towards the inside of the liquid baffle plate, and a liquid inlet is also formed in the water inlet groove;
a collecting tank is arranged in the liquid baffle plate and used for collecting electroplating waste liquid, the collecting tank is connected with a collecting pipe, the collecting pipe is connected with the treatment cavity, and the collecting pipe outputs the electroplating waste liquid to the treatment cavity;
a filtering tank, a neutralizing tank and a sedimentation tank are arranged in the treatment cavity; the collecting pipe is connected with the filtering tank, a filter screen is arranged in the middle of the filtering tank, and the filter screen is used for filtering solid matters in the electroplating waste liquid;
the neutralization tank is communicated with the filtering tank through a connecting pipe, a connecting valve is arranged on the connecting pipe and is connected with the processor, the processor outputs an opening signal to the connecting valve, then the connecting valve is opened, and electroplating waste liquid in the filtering tank is output to the neutralization tank;
a neutralizing liquid is stored in the neutralizing tank and used for reacting with electroplating wastewater; a liquid outlet is formed in the bottom of the neutralization pond, a closed door is arranged on the liquid outlet and connected with the processor, and the processor outputs an opening signal to the closed door to open the closed door;
the sedimentation tank is arranged below the neutralization tank, and after the closed door is opened, the electroplating waste liquid in the neutralization tank is released to the sedimentation tank, and the electroplating waste liquid is settled in the sedimentation tank.
As a preferable mode of the present invention, a longitudinal water guiding groove is provided on an inner side of the liquid baffle, and a liquid distributor is provided on a top end of the water guiding groove, the liquid distributor corresponding to the water outlet.
In a preferred aspect of the present invention, the upper end of the liquid separator has a first liquid separation tank, the lower end of the first liquid separation tank is connected to a plurality of second liquid separation tanks, and the width of each of the second liquid separation tanks is smaller than the width of the first liquid separation tank.
In a preferred embodiment of the present invention, the neutralization tank includes a neutralization solution release device, the neutralization solution release device includes a storage tank and a release pipe, the release pipe is disposed above the neutralization tank, the release pipe is provided with a release valve, the release valve is connected to the processor, the processor outputs an opening signal to the release valve, the release valve is opened, and the liquid storage tank releases the neutralization solution through the release pipe.
As a preferable mode of the invention, a solid recovery port is arranged on the inner wall of the filtering tank on one side of the filtering screen, and a recovery tank is arranged outside the solid recovery port and used for collecting solid matters;
the filter screen is provided with turning device, turning device with the treater is connected, the treater to turning device output upset signal, turning device drives the filter screen upset, the filter screen is emptyd the solid-state thing of filtering off to retrieving the mouth.
As a preferred mode of the invention, a stirring device is arranged in the neutralization tank, the stirring device comprises a stirring shaft and a stirring paddle, the stirring shaft is arranged at the bottom of the neutralization tank, and the stirring paddle is connected with the stirring shaft; the stirring shaft is connected with the processor, the processor outputs a starting signal to the stirring shaft, and the stirring shaft rotates and drives the stirring paddle to rotate.
As a preferred mode of the invention, a liquid level monitoring device is arranged in the filtering tank, the liquid level monitoring device is connected with the processor, and the liquid level monitoring device is used for monitoring the position of the liquid level in the filtering tank;
and if the liquid level position in the neutralization tank reaches a preset height, the liquid level monitoring device outputs a release signal to a processor, and the processor outputs an opening signal to the connecting valve.
A working method of a waste liquid treatment system used in an electroplating process comprises the following steps:
the processor outputs a starting signal to the water filtering pump, and the water filtering pump is started and releases the diluent to the water filtering port;
the electroplating waste liquid is output to the filter tank through a collecting pipe;
the processor outputs an opening signal to the connecting valve, the connecting valve is opened, and the electroplating waste liquid in the filter tank is output to the neutralization tank;
and the processor outputs an opening signal to the closing door, so that the closing door is opened, and the electroplating waste liquid in the neutralization pond is released to the sedimentation pond.
The method comprises the following steps:
the processor outputs an opening signal to the release valve, the release valve is opened, and the liquid storage tank releases the neutralizing liquid through the release pipe.
The method comprises the following steps:
the liquid level monitoring device monitors the liquid level position in the filter tank and outputs the page position to the processor;
if the liquid level position in the neutralization tank reaches a preset height, the liquid level monitoring device outputs a release signal to the processor, and the processor outputs an opening signal to the connecting valve;
the connecting valve is opened, and the electroplating waste liquid in the filter tank is output to the neutralization tank.
The invention realizes the following beneficial effects:
the liquid blocking plate is used for blocking and collecting the splashed waste liquid, diluent flows continuously on the inner side of the liquid blocking plate, and the splashed electroplating waste liquid is diluted and guided to flow out. The filtering tank filters solid matters in the electroplating waste liquid, and the neutralizing tank chemically neutralizes the electroplating waste liquid to react the components in the electroplating waste liquid. The sedimentation tank is used for sedimentation after the electroplating waste liquid is neutralized, so that the electroplating waste liquid is further neutralized.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a schematic top view of an electroplating cell of a waste liquid treatment system for use in an electroplating process according to the present invention;
FIG. 2 is a schematic view of a water baffle for a waste liquid treatment system in an electroplating process according to the present invention;
FIG. 3 is a schematic side view of a water baffle of a waste liquid treatment system for use in an electroplating process according to the present invention;
FIG. 4 is a schematic view of a filtration tank of the present invention for use in a waste treatment system for an electroplating process;
FIG. 5 is a schematic view of a second water baffle of the waste liquid treatment system for electroplating process according to the present invention;
FIG. 6 is a schematic view of a liquid distributor of a waste liquid treatment system for use in an electroplating process according to the present invention;
FIG. 7 is a schematic view of a second filtering tank of the waste liquid treatment system for the electroplating process according to the present invention.
Wherein: 1. the device comprises a liquid baffle plate, 11, a liquid inlet, 12, a filter pipe, 13, a water filtering port, 14, a water outlet, 15, a water inlet groove, 2, a filter tank, 21, a connecting pipe, 22, a connecting valve, 3, a neutralization tank, 31, a liquid outlet, 32, a sealing door, 33, a filter screen, 4, a sedimentation tank, 5, a water diversion groove, 6, a liquid separator, 61, a first liquid separation groove, 62, a second liquid separation groove, 7, a solid recovery port, 71, a recovery box and 72, and a turnover device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example one
Reference is made to fig. 1-4 for example.
A waste fluid treatment system for use in an electroplating process, comprising: collection chamber, processing chamber, treater.
The collecting cavity comprises a liquid baffle plate 1, the liquid baffle plate 1 is hollow, the liquid baffle plate 1 is arranged around the electroplating bath, the liquid baffle plate 1 is positioned on one side of the electroplating bath and is inner, a plurality of liquid inlets 11 are arranged on the inner side of the liquid baffle plate 1, and the liquid inlets 11 are uniformly distributed on the liquid baffle plate 1.
The liquid baffle plate 1 is arranged around the electroplating bath to shield the periphery of the electroplating bath, and the liquid inlet 11 is used for collecting electroplating waste liquid.
The liquid baffle 1 is provided with a water filtering device which comprises a water filtering pump and a water filtering opening 13. The water filtering pump is connected with the processor, the processor outputs an opening signal or a closing signal to the water filtering pump, and the water filtering pump executes opening or closing operation according to an instruction of the processor. The water filtering port 13 is arranged at the top end of the inner part of the liquid baffle plate 1, a water filtering pipe 12 is arranged in the water filtering port 13, a plurality of water outlets 14 are formed in the water filtering pipe 12, and the water outlets 14 are uniformly distributed on the water filtering pipe 12. The water filtering pump is connected with the water filtering pipe 12, the water filtering pump outputs diluent to the water filtering pipe 12, and the water filtering pipe 12 releases the diluent from the water outlet 14 to the surface of the liquid baffle plate 1.
The diluent output by the strainer 12 is released to the draining port 13, and the diluent flows down along the inner side of the liquid baffle plate 1, and dilutes the electroplating waste liquid splashed on the surface of the liquid baffle plate 1. The diluent can be clear water or water added with neutralizing liquid.
The bottom of the inner side of the liquid baffle plate 1 is provided with a water inlet groove 15, the water inlet groove 15 is sunken towards the inside of the liquid baffle plate 1, and a liquid inlet 11 is also arranged in the water inlet groove 15.
The water inlet groove 15 is sunken inwards, and the position of the water inlet groove 15 is equal to or lower than the bottom surface of the electroplating bath.
The liquid baffle plate 1 is internally provided with a collecting tank, the collecting tank is used for collecting electroplating waste liquid, the collecting tank is connected with a collecting pipe, the collecting pipe is connected with the treatment cavity, and the collecting pipe outputs the electroplating waste liquid to the treatment cavity.
The treatment cavity is internally provided with a filter tank 2, a neutralization tank 3 and a sedimentation tank 44. The collecting pipe with filtering ponds 2 are connected, 2 middle parts of filtering ponds are provided with filter screen 33, filter screen 33 is arranged in filtering the solid-state thing in the electroplating effluent.
The neutralization pond 3 with the filtering ponds 2 switch on through connecting pipe 21, be provided with connecting valve 22 on the connecting pipe 21, connecting valve 22 with the treater is connected, the treater to connecting valve 22 output opening signal, then connecting valve 22 opens, and the electroplating waste liquid in the filtering ponds 2 is to neutralization pond 3 output.
The neutralization pond 3 is stored with neutralization solution, and the neutralization solution is used for reacting with electroplating wastewater. A liquid outlet 31 is formed in the bottom of the neutralization pond 3, a closed door 32 is arranged on the liquid outlet 31, the closed door 32 is connected with the processor, and the processor outputs an opening signal to the closed door 32 to open the closed door 32.
The sedimentation tank 44 is arranged below the neutralization tank 3, and after the closed door 32 is opened, the electroplating waste liquid in the neutralization tank 3 is released to the sedimentation tank 44, and the electroplating waste liquid is settled in the sedimentation tank 44.
The processor outputs a start signal to the water filtration pump, which is turned on and releases the diluent to the water filtration port 13.
The electroplating waste liquid is output to the filter tank 2 through the collecting pipe.
The processor outputs an opening signal to the connecting valve 22, then the connecting valve 22 is opened, and the electroplating waste liquid in the filter tank 2 is output to the neutralization tank 3.
The processor outputs an opening signal to the closing door 32, then the closing door 32 is opened, and the electroplating waste liquid in the neutralization pond 3 is released to the sedimentation pond 44.
Example two
Reference is made to FIGS. 5-6 for example
The present embodiment is substantially the same as the above embodiments, except that, as a preferable mode of the present embodiment, a longitudinal water guiding groove 5 is provided on the inner side of the liquid baffle 1, a liquid distributor 6 is provided on the top end of the water guiding groove 5, and the liquid distributor 6 corresponds to the water outlet 14.
In a preferred embodiment of the present invention, the upper end of the liquid separator 6 has a first liquid separating tank 61, the lower end of the first liquid separating tank 61 is connected with a plurality of second liquid separating tanks 62, and the width of the second liquid separating tanks 62 is smaller than the width of the first liquid separating tank 61.
EXAMPLE III
The present embodiment is substantially the same as the above-mentioned embodiments, except that, as a preferable mode of the present embodiment, the neutralization tank 3 includes a neutralization solution releasing device, the neutralization solution releasing device includes a storage tank and a releasing pipe, the releasing pipe is disposed above the neutralization tank 3, a releasing valve is disposed on the releasing pipe, the releasing valve is connected to the processor, the processor outputs an opening signal to the releasing valve, the releasing valve is opened, and the storage tank releases the neutralization solution through the releasing pipe.
The storage tank stores the neutralization liquid in accordance with the neutralization liquid in the neutralization tank 3, and the neutralization liquid in the storage tank is used as a supplement to the neutralization liquid in the neutralization tank 3.
If the neutralizing liquid in the neutralizing tank 3 is consumed and released, the processor outputs an opening signal to the release valve, and the release valve opens to release the neutralizing liquid in the storage tank.
Example four
Reference is made to fig. 7 as an example.
The present embodiment is substantially the same as the previous embodiment, except that, as a preferable mode of the present embodiment, the inner wall of the filtering tank 2 on the side of the filtering net 33 is provided with a solid recovery port 7, and a recovery tank 71 is provided outside the solid recovery port 7, and the recovery tank 71 is used for collecting the solid.
The filter screen 33 is provided with turning device 72, turning device 72 with the treater is connected, the treater to turning device 72 output upset signal, turning device 72 drives the filter screen 33 upset, the filter screen 33 will filter off the solid-state thing of straining and empty to retrieving the mouth.
The turning device 72 is a rotating device for rotating the screen 33 upward, and the rotating screen 33 releases the solid materials thereon toward the solid recovery port 7.
The processor may output an opening signal to the rotary device at the same time as outputting an opening signal to the connecting valve 22.
EXAMPLE five
The present embodiment is substantially the same as the above-mentioned embodiments, except that, as a preferable mode of the present embodiment, a stirring device is disposed in the neutralization tank 3, the stirring device includes a stirring shaft and a stirring paddle, the stirring shaft is disposed at the bottom of the neutralization tank 3, and the stirring paddle is connected to the stirring shaft. The stirring shaft is connected with the processor, the processor outputs a starting signal to the stirring shaft, and the stirring shaft rotates and drives the stirring paddle to rotate.
The stirring device is used for stirring the liquid in the neutralization pond 3, assisting the full stirring of the neutralization pond 3 and stirring the substances settled in the neutralization pond 3 to float in the liquid in the neutralization pond 3, so that the neutralization pond 3 can release all the liquid and substances to the sedimentation pond 44.
As a preferable mode of this embodiment, a liquid level monitoring device is disposed in the filtering tank 2, the liquid level monitoring device is connected to the processor, and the liquid level monitoring device is configured to monitor a liquid level position in the filtering tank 2.
If the liquid level position in the neutralization tank 3 reaches a preset height, the liquid level monitoring device outputs a release signal to a processor, and the processor outputs an opening signal to the connecting valve 22.
The liquid level monitoring device can be an infrared distance measuring device which monitors the specific position of the liquid level, if the liquid in the filter tank 2 reaches the preset height, the processor outputs an opening signal to the connecting valve 22, and the connecting valve 22 is opened to release the liquid to the neutralization tank 3. The preset height may be set to 1/2 the height of the filtering tank 2.
The liquid level monitoring device monitors the position of the liquid level in the filter tank 2 and outputs the position of the page to the processor.
If the liquid level position in the neutralization tank 3 reaches the preset height, the liquid level monitoring device outputs a release signal to the processor, and the processor outputs an opening signal to the connecting valve 22.
The connecting valve 22 is opened, and the electroplating waste liquid in the filter tank 2 is output to the neutralization tank 3.
EXAMPLE six
A working method of a waste liquid treatment system used in an electroplating process comprises the following steps:
the processor outputs a start signal to the water filtration pump, which is turned on and releases the diluent to the water filtration port 13.
The electroplating waste liquid is output to the filter tank 2 through the collecting pipe.
The processor outputs an opening signal to the connecting valve 22, then the connecting valve 22 is opened, and the electroplating waste liquid in the filter tank 2 is output to the neutralization tank 3.
The processor outputs an opening signal to the closing door 32, then the closing door 32 is opened, and the electroplating waste liquid in the neutralization pond 3 is released to the sedimentation pond 44.
As a preferable mode of the present embodiment, the method includes the steps of:
the processor outputs an opening signal to the release valve, the release valve is opened, and the liquid storage tank releases the neutralizing liquid through the release pipe.
As a preferable mode of the present embodiment, the method includes the steps of:
the liquid level monitoring device monitors the position of the liquid level in the filter tank 2 and outputs the position of the page to the processor.
If the liquid level position in the neutralization tank 3 reaches the preset height, the liquid level monitoring device outputs a release signal to the processor, and the processor outputs an opening signal to the connecting valve 22.
The connecting valve 22 is opened, and the electroplating waste liquid in the filter tank 2 is output to the neutralization tank 3.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims (10)

1. A waste liquid treatment system for use in an electroplating process, comprising: a collection cavity, a processing cavity and a processor;
the collecting cavity comprises a liquid baffle plate (1), the liquid baffle plate (1) is hollow, the liquid baffle plate (1) is arranged around the electroplating bath in a surrounding mode, one side, located on the electroplating bath, of the liquid baffle plate (1) is the inner side, a plurality of liquid inlets (11) are formed in the inner side of the liquid baffle plate (1), and the liquid inlets (11) are uniformly distributed on the liquid baffle plate (1);
the liquid baffle (1) is provided with a water filtering device, and the water filtering device comprises a water filtering pump and a water filtering opening (13); the water filtering pump is connected with the processor, the processor outputs a starting signal or a closing signal to the water filtering pump, and the water filtering pump executes starting or closing operation according to an instruction of the processor; the water filtering port (13) is arranged at the top end of the inner part of the liquid baffle plate (1), a water filtering pipe (12) is arranged in the water filtering port (13), a plurality of water outlets (14) are formed in the water filtering pipe (12), and the water outlets (14) are uniformly distributed on the water filtering pipe (12); the water filtering pump is connected with the water filtering pipe (12), the water filtering pump outputs diluent to the water filtering pipe (12), and the water filtering pipe (12) releases the diluent from a water outlet (14) to the surface of the liquid baffle plate (1);
a water inlet groove (15) is formed in the bottom of the inner side of the liquid baffle plate (1), the water inlet groove (15) is sunken towards the inside of the liquid baffle plate (1), and a liquid inlet (11) is also formed in the water inlet groove (15);
a collecting tank is arranged inside the liquid baffle plate (1), the collecting tank is used for collecting electroplating waste liquid, the collecting tank is connected with a collecting pipe, the collecting pipe is connected with the treatment cavity, and the collecting pipe outputs the electroplating waste liquid to the treatment cavity;
the treatment cavity is internally provided with a filter tank (2), a neutralization tank (3) and a sedimentation tank (44); the collecting pipe is connected with the filtering tank (2), a filter screen (33) is arranged in the middle of the filtering tank (2), and the filter screen (33) is used for filtering solid matters in the electroplating waste liquid;
the neutralization tank (3) is communicated with the filtering tank (2) through a connecting pipe (21), a connecting valve (22) is arranged on the connecting pipe (21), the connecting valve (22) is connected with the processor, the processor outputs an opening signal to the connecting valve (22), then the connecting valve (22) is opened, and electroplating waste liquid in the filtering tank (2) is output to the neutralization tank (3);
a neutralizing liquid is stored in the neutralizing tank (3) and is used for reacting with electroplating wastewater; a liquid outlet (31) is formed in the bottom of the neutralization pond (3), a closed door (32) is arranged on the liquid outlet (31), the closed door (32) is connected with the processor, and the processor outputs an opening signal to the closed door (32), so that the closed door (32) is opened;
the sedimentation tank (44) is arranged below the neutralization tank (3), and after the closing door (32) is opened, the electroplating waste liquid in the neutralization tank (3) is released to the sedimentation tank (44), and the electroplating waste liquid is settled in the sedimentation tank (44).
2. The system for treating the waste liquid in the electroplating process according to claim 1, wherein a longitudinal water diversion groove (5) is arranged on the inner side of the liquid baffle plate (1), a liquid distributor (6) is arranged at the top end of the water diversion groove (5), and the liquid distributor (6) corresponds to the water outlet (14).
3. The waste liquid treatment system for electroplating process according to claim 2, wherein the upper end of the liquid separator (6) is provided with a first liquid separating tank (61), the lower end of the first liquid separating tank (61) is connected with a plurality of second liquid separating tanks (62), and the width of the second liquid separating tanks (62) is smaller than that of the first liquid separating tanks (61).
4. The system for treating the waste liquid in the electroplating process according to claim 1, wherein the neutralization tank (3) comprises a neutralization solution release device, the neutralization solution release device comprises a storage tank and a release pipe, the release pipe is arranged above the neutralization tank (3), a release valve is arranged on the release pipe and connected with the processor, the processor outputs an opening signal to the release valve, the release valve is opened, and the liquid storage tank releases the neutralization solution through the release pipe.
5. The system for treating the waste liquid in the electroplating process according to claim 1, wherein the inner wall of the filtering pool (2) at one side of the filtering net (33) is provided with a solid recovery port (7), a recovery tank (71) is arranged at the outer side of the solid recovery port (7), and the recovery tank (71) is used for collecting the solid;
filter screen (33) are provided with turning device (72), turning device (72) with the treater is connected, the treater to turning device (72) output upset signal, turning device (72) drive filter screen (33) upset, filter screen (33) will filter out the solid-state thing of straining and empty to retrieving the mouth.
6. The waste liquid treatment system for the electroplating process according to claim 1, wherein a stirring device is arranged in the neutralization tank (3), the stirring device comprises a stirring shaft and a stirring paddle, the stirring shaft is arranged at the bottom of the neutralization tank (3), and the stirring paddle is connected with the stirring shaft; the stirring shaft is connected with the processor, the processor outputs a starting signal to the stirring shaft, and the stirring shaft rotates and drives the stirring paddle to rotate.
7. A liquid waste treatment system for an electroplating process according to claim 1, wherein a liquid level monitoring device is arranged in the filter tank (2), the liquid level monitoring device is connected with the processor, and the liquid level monitoring device is used for monitoring the liquid level position in the filter tank (2);
if the liquid level position in the neutralization tank (3) reaches a preset height, the liquid level monitoring device outputs a release signal to a processor, and the processor outputs an opening signal to the connecting valve (22).
8. A method of operating a waste fluid treatment system for use in an electroplating process according to any of claims 1 to 7, comprising the steps of:
the processor outputs a starting signal to the water filtering pump, and the water filtering pump is started and releases diluent to the water filtering port (13);
the electroplating waste liquid is output to the filter tank (2) through a collecting pipe;
the processor outputs an opening signal to the connecting valve (22), then the connecting valve (22) is opened, and the electroplating waste liquid in the filter tank (2) is output to the neutralization tank (3);
the processor outputs an opening signal to the closing door (32), the closing door (32) is opened, and the electroplating waste liquid in the neutralization pond (3) is released to the sedimentation pond (44).
9. The method of claim 8, further comprising the steps of:
the processor outputs an opening signal to the release valve, the release valve is opened, and the liquid storage tank releases the neutralizing liquid through the release pipe.
10. The method of claim 8, further comprising the steps of:
the liquid level monitoring device monitors the liquid level position in the filter tank (2) and outputs the page position to the processor;
if the liquid level position in the neutralization tank (3) reaches a preset height, the liquid level monitoring device outputs a release signal to the processor, and the processor outputs an opening signal to the connecting valve (22);
the connecting valve (22) is opened, and the electroplating waste liquid in the filter tank (2) is output to the neutralization tank (3).
CN201911007486.0A 2019-10-22 2019-10-22 Waste liquid treatment system used in electroplating process and working method thereof Active CN110921884B (en)

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