CN113929237A - Electroplating heavy metal wastewater zero-discharge recycling treatment device and process - Google Patents
Electroplating heavy metal wastewater zero-discharge recycling treatment device and process Download PDFInfo
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- CN113929237A CN113929237A CN202111386258.6A CN202111386258A CN113929237A CN 113929237 A CN113929237 A CN 113929237A CN 202111386258 A CN202111386258 A CN 202111386258A CN 113929237 A CN113929237 A CN 113929237A
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- 239000002351 wastewater Substances 0.000 title claims abstract description 76
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 26
- 238000009713 electroplating Methods 0.000 title claims abstract description 23
- 238000004064 recycling Methods 0.000 title claims description 19
- 238000000034 method Methods 0.000 title claims description 12
- 230000008569 process Effects 0.000 title claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 66
- 238000002156 mixing Methods 0.000 claims abstract description 59
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 19
- 239000008394 flocculating agent Substances 0.000 claims abstract description 15
- 239000010814 metallic waste Substances 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims description 35
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 20
- 230000008878 coupling Effects 0.000 claims description 20
- 238000010168 coupling process Methods 0.000 claims description 20
- 238000005859 coupling reaction Methods 0.000 claims description 20
- 239000007921 spray Substances 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 14
- 239000002244 precipitate Substances 0.000 claims description 13
- 238000003756 stirring Methods 0.000 claims description 13
- 238000003860 storage Methods 0.000 claims description 12
- 238000001914 filtration Methods 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 4
- 229910021645 metal ion Inorganic materials 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 230000008602 contraction Effects 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 239000013049 sediment Substances 0.000 claims 3
- 239000000243 solution Substances 0.000 description 11
- 238000004140 cleaning Methods 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
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- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
-
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- 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
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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)
- Water Treatment By Sorption (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The application discloses electroplating heavy metal waste water zero release retrieval and utilization processing apparatus and technology relates to electroplating heavy metal waste water zero release retrieval and utilization processing technology field, including the collection unit, the top of collection unit is provided with the processing unit, the outside upper end of processing unit is provided with water agent mixing unit, the top of processing unit is provided with the conveying unit, the side of processing unit is provided with the filter unit, the filter unit is connected with the conveying unit. This application is through the cooperation of collection unit, processing unit, filter unit, water agent mixing unit and conveying unit, is convenient for carry out the intensive mixing contact with waste water for the flocculating agent that uses, increases the area of contact of flocculating agent and waste water to the efficiency is got rid of to the heavy metal in the improvement waste water, is convenient for to electroplating heavy metal waste water zero release, and convenient recycle.
Description
Technical Field
The invention relates to the technical field of electroplating heavy metal wastewater zero-discharge recycling treatment, in particular to an electroplating heavy metal wastewater zero-discharge recycling treatment device and process.
Background
Electroplating is a process of plating a thin layer of other metals or alloys on the surface of some metals by using the principle of electrolysis, and is a process of attaching a layer of metal film on the surface of a metal or other material product by using the action of electrolysis, thereby having the effects of preventing metal oxidation (such as corrosion), improving wear resistance, conductivity, light reflection, corrosion resistance (such as copper sulfate and the like), enhancing the appearance and the like.
In the prior art, when the flocculant is used for removing metal ions in wastewater through reaction, the flocculant is intensively used, cannot be fully mixed and contacted with the wastewater, cannot increase the contact area of the flocculant and the wastewater, and has not high efficiency for removing heavy metals in the wastewater.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provide a device and a process for recycling electroplating heavy metal wastewater with zero discharge, which are convenient for fully mixing and contacting a used flocculating agent with wastewater and increasing the contact area of the flocculating agent and the wastewater, thereby improving the efficiency of removing heavy metal in the wastewater, facilitating the zero discharge of the electroplating heavy metal wastewater and facilitating the recycling.
In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:
the utility model provides an electroplating heavy metal waste water zero release retrieval and utilization processing apparatus, includes the collection unit, the top of collection unit is provided with the processing unit, the outside upper end of processing unit is provided with water agent mixing unit, the top of processing unit is provided with the conveying unit, the side of processing unit is provided with the filter unit, the filter unit is connected with the conveying unit.
Preferably, the collecting unit includes the collecting pit, collecting pit outer wall both sides bottom all communicates first drain pipe, and is two sets of all be provided with first valve on the first drain pipe, the bottom rigid coupling of collecting pit has first support column.
Based on the technical characteristics, the whole device is supported and fixed through the first supporting column.
Preferably, the processing unit includes the retort, the outer wall bottom rigid coupling of retort has the water conservancy diversion platform, the bottom rigid coupling of water conservancy diversion platform has the second support column, the bottom of retort is provided with hydraulic rod, the flexible end rigid coupling of hydraulic rod's top power has the baffle, the outer wall rigid coupling of baffle has rubber seal ring stopper, the baffle passes through rubber seal ring stopper and the inside wall sealing connection of retort, the active carbon filter screen is installed to the even gomphosis in inner chamber circumference outer wall bottom of retort, the bottom of hydraulic rod and second support column and the inner chamber bottom rigid coupling of collecting pit.
Based on the technical characteristics, the treatment unit is convenient to support and fix on the collecting tank.
Preferably, the filter unit includes the box, box and retort looks rigid coupling, the inner chamber fixed mounting of box has thick efficiency filter screen, the top of thick efficiency filter screen is provided with cleans the mechanism, the outer wall rigid coupling of box has first scum pipe, and the input of first scum pipe is located the top of thick efficiency filter screen, be provided with the stop valve on the first scum pipe, the bottom of box is provided with the second fluid-discharge tube, the top of box is provided with first inlet tube.
Based on the technical characteristics, the wastewater is convenient to be conveyed into the box body.
Preferably, clean the mechanism and include first motor, first motor is located the top center department of box, the bottom power take off end of first motor is connected with the axostylus axostyle, and the axostylus axostyle stretches into the inner chamber of box, the one end rigid coupling that the axostylus axostyle stretched into the box inner chamber has the connecting plate, the bottom rigid coupling of connecting plate has the fibre brush hair.
Based on above-mentioned technical characteristics, provide drive power through first motor and be convenient for drive the fibre brush hair and clean thick efficiency filter screen top filtering surface, avoid thick efficiency filter screen to filter out the big impurity foreign matter that filters and pile up above that and cause the mesh to block up the possibility.
Preferably, the conveying unit comprises a cavity disc, a water pump and a second water inlet pipe are arranged at the top of the cavity disc, the output end of the water pump is communicated with the second water inlet pipe through a guide pipe, the input end of the water pump is communicated with a second liquid discharge pipe through a guide pipe, the bottom of the cavity disc is communicated with a jet pipe in an annular array mode, and the bottom output end of the jet pipe extends into the top end of the inner cavity of the reaction tank.
Based on the technical characteristics, the wastewater in the cavity disc can be conveniently and uniformly dispersed and conveyed into the reaction tank.
Preferably, the water agent mixing unit comprises a mixing box and a cavity ring pipe, the cavity ring pipe is fixedly installed on the outer wall of the reaction tank, the inner side wall of the circumference of the cavity ring pipe is uniformly communicated with a spray head, the spray head extends into the inner cavity of the reaction tank, the spray head corresponds to the spray pipe one by one, a guide pipe is uniformly communicated between the mixing box and the cavity ring pipe, a second valve is arranged on the guide pipe, a second motor is arranged at the center of the top of the mixing box, the power output end at the bottom of the second motor is symmetrically connected with stirring blades which are positioned in the inner cavity of the mixing box, a booster pump is arranged at the right side of the second motor, the output end of the booster pump is communicated with the inner cavity of the mixing box, a third water inlet pipe is arranged at the left side of the second motor and communicated with the mixing box, and a fourth valve is arranged on the third water inlet pipe, the top left and right sides of mixing box all is provided with flocculating agent storage hopper, flocculating agent storage hopper and mixing box are linked together through leading the agent pipe between, be provided with the third valve on leading the agent pipe.
Based on the technical characteristics, when the third valve is opened, the flocculant powder stored in the flocculant storage hopper is conveniently guided and conveyed to the mixing box through the flocculant guide pipe.
A zero-discharge recycling treatment process for electroplating heavy metal wastewater comprises the following specific steps:
firstly, closing a second valve and opening a fourth valve at the beginning, inputting enough water source into a mixing box through a third water inlet pipe, closing the fourth valve and opening the third valve to enable flocculant powder stored in a flocculant storage hopper to be conveyed into the mixing box through a guiding agent pipe, then closing the third valve, starting a second motor to drive stirring blades to uniformly rotate in the mixing box to uniformly stir and mix the water source and the flocculant powder, and stopping the second motor after a period of time;
conveying the wastewater into the box body through the first water inlet pipe, primarily filtering the wastewater in the box body through a coarse-efficiency filter screen to remove large foreign matters, and collecting the primarily filtered wastewater at the bottom of the inner cavity of the box body in a centralized manner;
step three, opening a second valve, starting a booster pump and a water pump, pumping wastewater in the box body out of a second liquid discharge pipe through the water pump, conveying the wastewater into a cavity disc through a second water inlet pipe, collecting and filling the wastewater in the cavity disc, conveying the wastewater into a reaction tank from each jet pipe, simultaneously pressurizing the inner cavity of the mixing box through the booster pump, conveying a flocculant solution in the mixing box into a cavity ring pipe through a guide pipe, spraying the flocculant solution through each nozzle, spraying the output flocculant solution onto the wastewater output to the jet pipes, fully mixing and contacting the flocculant solution with the wastewater, reacting and adsorbing the flocculant solution with a flocculant to enable metal ions in the wastewater to react with the flocculant to generate water-insoluble flocculent precipitates, and collecting the wastewater and the flocculent precipitates in the inner cavity of the reaction tank at the top of a baffle;
step four, after a period of time, the baffle is driven to move downwards in the reaction tank and move to the bottom of the inner cavity of the reaction tank through contraction of the hydraulic push rod, wastewater flows out of the reaction tank through the activated carbon filter screen and is conveyed into the collection tank, and flocculent precipitates are filtered and blocked by the activated carbon filter screen and are left on the baffle;
and step five, opening a first valve on a group of first liquid discharge pipes on one side of the collecting tank, and discharging the clean wastewater collected in the collecting tank through the first liquid discharge pipes so as to be convenient for recycling.
Compared with the prior art, the invention has the following beneficial effects:
firstly, the method comprises the following steps: through using water agent mixing unit to dissolve earlier in aquatic and evenly stir earlier the flocculating agent powder and carry the retort again, simultaneously the conveying unit with waste water also even carry the retort in, and go out at retort inner chamber top, both converge the contact and fuse, thereby make the flocculating agent and the waste water that use carry out the intensive mixing contact, increase the area of contact of flocculating agent and waste water, thereby improve the heavy metal removal efficiency to in the waste water, be convenient for to electroplating heavy metal waste water zero release, and make things convenient for waste water recycle.
Secondly, the method comprises the following steps: through the active carbon filter screen to waste water and flocculent precipitate separately, when flexible regulation through hydraulic pressure push rod drives the baffle and shifts out the retort, be convenient for effectively clear up the flocculent precipitate that handles waste water production.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a use state of the present invention;
FIG. 2 is a schematic structural view of a collecting unit according to the present invention;
FIG. 3 is a schematic diagram of a processing unit according to the present invention;
FIG. 4 is a schematic diagram of the construction of the filtration unit of the present invention;
FIG. 5 is a schematic structural view of a conveying unit of the present invention;
FIG. 6 is a schematic structural diagram of an aqueous agent mixing unit according to the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1-a collection unit, 101-a collection tank, 102-a first liquid discharge pipe, 103-a first valve, 104-a first support column, 2-a treatment unit, 201-a reaction tank, 202-an activated carbon filter screen, 203-a hydraulic push rod, 204-a baffle, 205-a guide table, 206-a second support column, 207-a rubber sealing ring plug, 3-a filtration unit, 301-a box body, 302-a first water inlet pipe, 303-a first slag discharge pipe, 304-a first motor, 305-a shaft rod, 306-a connecting plate, 307-fiber bristles, 308-a coarse efficiency filter screen, 309-a second liquid discharge pipe, a 4-water agent mixing unit, 401-a mixing box, 402-a cavity ring pipe, 403-a spray head, 404-a guide pipe and 405-a second valve, 406-stirring blades, 407-a third water inlet pipe, 408-a booster pump, 409-a second motor, 410-a flocculant storage hopper, 411-a guiding agent pipe, 412-a third valve, 5-a conveying unit, 501-a jet pipe, 502-a cavity disc, 503-a water pump and 504-a second water inlet pipe.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a technical scheme that: referring to the attached drawing of the specification and fig. 1, the treatment device for the zero-discharge recycling of the electroplating heavy metal wastewater comprises a collection unit 1 and referring to the attached drawing of the specification and fig. 2, wherein the collection unit 1 comprises a collection pool 101, the bottoms of the two sides of the outer wall of the collection pool 101 are respectively communicated with a first drainage pipe 102, two groups of first drainage pipes 102 are respectively provided with a first valve 103, the bottom of the collection pool 101 is fixedly connected with a first support column 104, and the whole device is supported and fixed through the first support column 104.
Referring to the attached drawing 1 of the specification, a processing unit 2 is arranged at the top of the collection unit 1, referring to the attached drawing 3 of the specification, the processing unit 2 includes a reaction tank 201, a flow guide table 205 is fixedly connected to the bottom of the outer wall of the reaction tank 201, a second support column 206 is fixedly connected to the bottom of the flow guide table 205, a hydraulic push rod 203 is arranged at the bottom of the reaction tank 201, a baffle 204 is fixedly connected to a top power telescopic end of the hydraulic push rod 203, a rubber seal ring plug 207 is fixedly connected to the outer wall of the baffle 204, the baffle 204 is hermetically connected to the inner side wall of the reaction tank 201 through the rubber seal ring plug 207, the connection sealing performance between the baffle 204 and the reaction tank 201 is improved, an activated carbon filter screen 202 is uniformly embedded at the bottom end of the circumferential outer wall of the inner cavity of the reaction tank 201, and the bottoms of the hydraulic push rod 203 and the second support column 206 are fixedly connected to the bottom of the inner cavity of the collection tank 101, so that the processing unit 2 is supported and fixed on the collection tank 101.
Referring to the attached drawing of the specification and fig. 1, a filtering unit 3 is arranged beside a processing unit 2, referring to the attached drawing of the specification and fig. 4, the filtering unit 3 comprises a box body 301, the box body 301 is fixedly connected with a reaction tank 201, a coarse efficiency filter screen 308 is fixedly arranged in an inner cavity of the box body 301, a cleaning mechanism is arranged at the top of the coarse efficiency filter screen 308, a first slag discharge pipe 303 is fixedly connected with the outer wall of the box body 301, the input end of the first slag discharge pipe 303 is positioned at the top of the coarse efficiency filter screen 308, a stop valve is arranged on the first slag discharge pipe 303, a second liquid discharge pipe 309 is arranged at the bottom of the box body 301, a first water inlet pipe 302 is arranged at the top of the box body 301 for facilitating conveying of wastewater into the box body 301, the cleaning mechanism comprises a first motor 304, the first motor 304 is positioned at the center of the top of the box body 301, the power output end at the bottom of the first motor 304 is connected with a shaft lever 305, the shaft lever 305 extends into the inner cavity of the box body 301, and one end of the shaft lever 305 extends into the inner cavity of the box body 301 is fixedly connected with a connecting plate 306, the bottom rigid coupling of connecting plate 306 has fibre brush hair 307, it drives axostylus axostyle 305 to rotate to provide drive power through first motor 304, it rotates together to drive connecting plate 306 and fibre brush hair 307 to rotate through axostylus axostyle 305, thereby be convenient for drive fibre brush hair 307 and clean thick efficiency filter screen 308 top filtering surface, avoid thick efficiency filter screen 308 to filter out the big impurity foreign matter pile up on it and cause the mesh jam the possibility, when big impurity foreign matter produces more, through opening the stop valve on first scum pipe 303, and let second drainpipe 309 obstructed, import from first inlet tube 302 with clean water, wash thick efficiency filter screen 308 surface, it discharges together to take big impurity foreign matter when making rivers discharge from first scum pipe 303.
Referring to the attached drawing 1 of the specification, a conveying unit 5 is arranged at the top of a processing unit 2, a filtering unit 3 is connected with the conveying unit 5, referring to the attached drawing 5 of the specification, the conveying unit 5 comprises a cavity disc 502, a water pump 503 and a second water inlet pipe 504 are arranged at the top of the cavity disc 502, the output end of the water pump 503 is communicated with the second water inlet pipe 504 through a conduit, the input end of the water pump 503 is communicated with a second liquid outlet pipe 309 through a conduit, when the water pump 503 stops working, the second liquid outlet pipe 309 can not discharge waste water, the bottom of the cavity disc 502 is communicated with a jet pipe 501 in an annular array mode, and the output end of the bottom of the jet pipe 501 extends into the top end of an inner cavity of a reaction tank 201, so that waste water in the cavity disc 502 can be uniformly dispersed and conveyed into the reaction tank 201.
Referring to the attached drawing of the specification and fig. 1, the upper end of the exterior of the processing unit 2 is provided with an aqueous solution mixing unit 4, referring to the attached drawing of the specification and fig. 6, the aqueous solution mixing unit 4 comprises a mixing box 401 and a cavity ring pipe 402, the cavity ring pipe 402 is fixedly installed on the outer wall of the reaction tank 201, the circumferential inner side wall of the cavity ring pipe 402 is uniformly communicated with spray heads 403, the spray heads 403 extend into the inner cavity of the reaction tank 201, the spray heads 403 correspond to the spray pipes 501 one by one, a guide pipe 404 is uniformly communicated between the mixing box 401 and the cavity ring pipe 402, a second valve 405 is arranged on the guide pipe 404, a second motor 409 is arranged at the center of the top of the mixing box 401, the bottom power output end of the second motor 409 is symmetrically connected with stirring blades 406, the stirring blades 406 are positioned in the inner cavity of the mixing box 401, the right side of the second motor 409 is provided with a booster pump 408, and the output end of the booster pump 408 is communicated with the inner cavity of the mixing box 401, the left side of second motor 409 is provided with third inlet tube 407, and third inlet tube 407 is linked together with mixing box 401, be provided with the fourth valve on the third inlet tube 407, the top left and right sides of mixing box 401 all is provided with flocculating agent storage hopper 410, it is linked together through leading agent pipe 411 between flocculating agent storage hopper 410 and the mixing box 401, be provided with third valve 412 on leading agent pipe 411, under the state that third valve 412 is opened, be convenient for store the flocculating agent powder in flocculating agent storage hopper 410 in to the mixing box 401 in the water conservancy diversion transport through leading agent pipe 411.
A zero-discharge recycling treatment process for electroplating heavy metal wastewater comprises the following specific steps:
firstly, closing a second valve 405 and opening a fourth valve at the beginning, inputting enough water source into a mixing box 401 through a third water inlet pipe 407, closing the fourth valve, opening a third valve 412 to enable flocculant powder stored in a flocculant storage hopper 410 to be conveyed into the mixing box 401 through a guide pipe 411, then closing the third valve 412, starting a second motor 409 to drive stirring blades 406 to uniformly rotate in the mixing box 401 to uniformly stir and mix the water source and the flocculant powder, and stopping the second motor 409 from working after a period of time;
step two, conveying the wastewater into the box body 301 through the first water inlet pipe 302, primarily filtering the wastewater in the box body 301 through the coarse-efficiency filter screen 308 to remove large foreign matters, and collecting the primarily filtered wastewater at the bottom of the inner cavity of the box body 301 in a centralized manner;
step three, opening a second valve 405, starting a booster pump 408 and a water pump 503, pumping the wastewater in the box body 301 out of a second liquid discharge pipe 309 through the water pump 503, conveying the wastewater into the cavity disc 502 through a second water inlet pipe 504, collecting and filling the wastewater in the cavity disc 502, then, the mixture is conveyed from each jet pipe 501 to the reaction tank 201, and the inner cavity of the mixing box 401 is pressurized by a booster pump 408, so that the flocculant solution in the mixing tank 401 is transported through the draft tube 404 into the cavity loop 402, then sprayed out through each spray nozzle 403, the output flocculant solution sprays the wastewater output to the spray pipe 501, fully mixing and contacting the flocculant solution with the wastewater, reacting and adsorbing the flocculant solution with the metal ions in the wastewater to generate flocculent precipitates insoluble in water, and collecting the wastewater and the flocculent precipitates in the inner cavity of the reaction tank 201 and at the top of the baffle 204;
step four, after a period of time, when the baffle plate 204 is driven to move downwards in the reaction tank 201 and move to the bottom of the inner cavity of the reaction tank by the contraction of the hydraulic push rod 203, the wastewater flows out of the reaction tank 201 through the activated carbon filter screen 202 and is conveyed into the collection tank 101, and the flocculent precipitate is filtered and blocked by the activated carbon filter screen 202 and is left on the baffle plate 204;
step five, opening a first valve 103 on a group of first drainage pipes 102 on one side of the collection pool 101, discharging clean wastewater collected in the collection pool 101 through the first drainage pipes 102, facilitating recycling, when stopping wastewater treatment, continuously contracting through a hydraulic push rod 203 to drive a baffle plate 204 to move downwards to move out of the bottom of the reaction tank 201, facilitating cleaning flocculent precipitates on the baffle plate 204, accommodating the flocculent precipitates left after cleaning through the collection pool 101, facilitating centralized cleaning, pouring a clean water source into the collection pool 101 for cleaning, and discharging the cleaned water source from the other group of first drainage pipes 102.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. The utility model provides an electroplating heavy metal waste water zero release retrieval and utilization processing apparatus, includes collection unit (1), its characterized in that: the top of collecting unit (1) is provided with processing unit (2), the outside upper end of processing unit (2) is provided with water agent mixing unit (4), the top of processing unit (2) is provided with conveying unit (5), the side of processing unit (2) is provided with filter unit (3), filter unit (3) are connected with conveying unit (5).
2. The electroplating heavy metal wastewater zero-discharge recycling treatment device as claimed in claim 1, which is characterized in that: the collecting unit (1) comprises a collecting tank (101), wherein the bottoms of the two sides of the outer wall of the collecting tank (101) are communicated with a first liquid discharge pipe (102) respectively, the two sides of the outer wall of the collecting tank (101) are provided with a first valve (103), and the bottom of the collecting tank (101) is fixedly connected with a first supporting column (104).
3. The electroplating heavy metal wastewater zero-discharge recycling treatment device as claimed in claim 1, which is characterized in that: processing unit (2) are including retort (201), the outer wall bottom rigid coupling of retort (201) has water conservancy diversion platform (205), the bottom rigid coupling of water conservancy diversion platform (205) has second support column (206), the bottom of retort (201) is provided with hydraulic push rod (203), the flexible end rigid coupling of top power of hydraulic push rod (203) has baffle (204), the outer wall rigid coupling of baffle (204) has rubber seal ring stopper (207), baffle (204) are through the inside wall sealing connection of rubber seal ring stopper (207) with retort (201), activated carbon filter screen (202) are installed to the even gomphosis in inner chamber circumference outer wall bottom of retort (201), the bottom of hydraulic push rod (203) and second support column (206) and the inner chamber bottom rigid coupling of collecting pit (101).
4. The electroplating heavy metal wastewater zero-discharge recycling treatment device as claimed in claim 1, which is characterized in that: filter unit (3) include box (301), box (301) and retort (201) looks rigid coupling, the inner chamber fixed mounting of box (301) has thick efficiency filter screen (308), the top of thick efficiency filter screen (308) is provided with cleans the mechanism, the outer wall rigid coupling of box (301) has first row of sediment pipe (303), and the input of first row of sediment pipe (303) is located the top of thick efficiency filter screen (308), be provided with the stop valve on first row of sediment pipe (303), the bottom of box (301) is provided with second fluid-discharge tube (309), the top of box (301) is provided with first inlet tube (302).
5. The electroplating heavy metal wastewater zero-discharge recycling treatment device as claimed in claim 4, characterized in that: clean mechanism and include first motor (304), first motor (304) are located the top center department of box (301), the bottom power take off end of first motor (304) is connected with axostylus axostyle (305), and axostylus axostyle (305) stretch into the inner chamber of box (301), the one end rigid coupling that axostylus axostyle (305) stretched into box (301) inner chamber has connecting plate (306), the bottom rigid coupling of connecting plate (306) has fibre brush hair (307).
6. The electroplating heavy metal wastewater zero-discharge recycling treatment device as claimed in claim 1, which is characterized in that: conveying unit (5) includes cavity disc (502), the top of cavity disc (502) is provided with water pump (503) and second inlet tube (504), the output of water pump (503) is linked together through pipe and second inlet tube (504), the input of water pump (503) is linked together through pipe and second fluid-discharge tube (309), the bottom ring array intercommunication of cavity disc (502) has jet-flow pipe (501), and the bottom output of jet-flow pipe (501) stretches into the inner chamber top of retort (201).
7. The electroplating heavy metal wastewater zero-discharge recycling treatment device as claimed in claim 1, which is characterized in that: the water agent mixing unit (4) comprises a mixing box (401) and a cavity ring pipe (402), the cavity ring pipe (402) is fixedly arranged on the outer wall of the reaction tank (201), the inner side wall of the circumference of the cavity ring pipe (402) is uniformly communicated with spray heads (403), the spray heads (403) extend into the inner cavity of the reaction tank (201), the spray heads (403) correspond to the spray pipes (501) one by one, a guide pipe (404) is uniformly communicated between the mixing box (401) and the cavity ring pipe (402), a second valve (405) is arranged on the guide pipe (404), a second motor (409) is arranged at the center of the top of the mixing box (401), the power output end at the bottom of the second motor (409) is symmetrically connected with stirring blades (406), the stirring blades (406) are positioned in the inner cavity of the mixing box (401), and a booster pump (408) is arranged on the right side of the second motor (409), and the output of booster pump (408) is linked together with the inner chamber of mixing box (401), the left side of second motor (409) is provided with third inlet pipe (407), and third inlet pipe (407) are linked together with mixing box (401), be provided with the fourth valve on third inlet pipe (407), the top left and right sides of mixing box (401) all is provided with flocculating agent storage hopper storehouse (410), flocculating agent storage hopper storehouse (410) and mixing box (401) between be linked together through leading agent pipe (411), it is provided with third valve (412) on agent pipe (411) to lead.
8. The electroplating heavy metal wastewater zero-discharge recycling treatment process according to claim 1, which is characterized in that: the process comprises the following specific steps:
firstly, closing a second valve (405) and opening a fourth valve at the beginning, inputting enough water source into a mixing box (401) through a third water inlet pipe (407), closing the fourth valve and opening the third valve (412) to ensure that flocculant powder stored in a flocculant storage hopper (410) is conveyed into the mixing box (401) through a guide agent pipe (411), then closing the third valve (412), starting a second motor (409) to drive stirring blades (406) to uniformly rotate in the mixing box (401) to uniformly stir and mix the water source and the flocculant powder, and stopping the second motor (409) after a period of time;
conveying the wastewater into the box body (301) through the first water inlet pipe (302), primarily filtering the wastewater in the box body (301) through the coarse-efficiency filter screen (308) to remove large foreign matters, and collecting the primarily filtered wastewater at the bottom of the inner cavity of the box body (301) in a centralized manner;
step three, opening a second valve (405), starting a booster pump (408) and a water pump (503), pumping the wastewater in the box body (301) from a second liquid discharge pipe (309) through the water pump (503), conveying the wastewater into a cavity disc (502) through a second water inlet pipe (504), concentrating and filling the wastewater in the cavity disc (502), conveying the wastewater into a reaction tank (201) from each spray pipe (501), simultaneously pressurizing the inner cavity of the mixing box (401) through the booster pump (408), conveying the flocculant solution in the mixing box (401) into a cavity ring pipe (402) through a guide pipe (404), then spraying the flocculant solution through each spray nozzle (403), spraying the output flocculant solution to the wastewater output to the spray pipes (501), fully mixing and contacting the flocculant solution with the wastewater, and reacting and adsorbing with the flocculant to enable metal ions in the wastewater to react with the flocculant to generate flocculent precipitates insoluble in water, wastewater and flocculent precipitate are collected in the inner cavity of the reaction tank (201) at the top of the baffle plate (204);
after a period of time, the baffle plate (204) is driven to move downwards in the reaction tank (201) by the contraction of the hydraulic push rod (203) and moves to the bottom of the inner cavity of the reaction tank, wastewater flows out of the reaction tank (201) through the activated carbon filter screen (202) and is conveyed into the collection tank (101), and flocculent precipitates are filtered and blocked by the activated carbon filter screen (202) and are left on the baffle plate (204);
and step five, opening first valves (103) on a group of first liquid discharge pipes (102) on one side of the collecting pool (101), and discharging the clean waste water collected in the collecting pool (101) through the first liquid discharge pipes (102) so as to be convenient for recycling.
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