CN113526761A - Electronic connector surface coating cleaning waste liquid treatment method and system - Google Patents
Electronic connector surface coating cleaning waste liquid treatment method and system Download PDFInfo
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- CN113526761A CN113526761A CN202110580915.4A CN202110580915A CN113526761A CN 113526761 A CN113526761 A CN 113526761A CN 202110580915 A CN202110580915 A CN 202110580915A CN 113526761 A CN113526761 A CN 113526761A
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- 239000007788 liquid Substances 0.000 title claims abstract description 123
- 238000004140 cleaning Methods 0.000 title claims abstract description 62
- 239000002699 waste material Substances 0.000 title claims abstract description 57
- 239000011248 coating agent Substances 0.000 title claims abstract description 40
- 238000000576 coating method Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000004062 sedimentation Methods 0.000 claims abstract description 97
- 239000002351 wastewater Substances 0.000 claims abstract description 51
- 239000002923 metal particle Substances 0.000 claims abstract description 39
- 239000000725 suspension Substances 0.000 claims abstract description 39
- 239000002184 metal Substances 0.000 claims abstract description 38
- 229910052751 metal Inorganic materials 0.000 claims abstract description 38
- 238000003756 stirring Methods 0.000 claims abstract description 36
- 239000000843 powder Substances 0.000 claims abstract description 27
- 238000001704 evaporation Methods 0.000 claims abstract description 22
- 239000006228 supernatant Substances 0.000 claims abstract description 22
- 238000005406 washing Methods 0.000 claims abstract description 21
- 239000002244 precipitate Substances 0.000 claims abstract description 20
- 238000001035 drying Methods 0.000 claims abstract description 16
- 230000008569 process Effects 0.000 claims abstract description 13
- 150000003839 salts Chemical class 0.000 claims abstract description 8
- 239000012298 atmosphere Substances 0.000 claims abstract description 7
- 238000000926 separation method Methods 0.000 claims description 61
- 230000007246 mechanism Effects 0.000 claims description 46
- 238000001556 precipitation Methods 0.000 claims description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 239000013049 sediment Substances 0.000 claims description 15
- 230000008020 evaporation Effects 0.000 claims description 13
- 238000012546 transfer Methods 0.000 claims description 12
- 238000001914 filtration Methods 0.000 claims description 9
- 238000002425 crystallisation Methods 0.000 claims description 4
- 230000008025 crystallization Effects 0.000 claims description 4
- 238000005253 cladding Methods 0.000 abstract description 11
- 239000000463 material Substances 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 3
- 238000007747 plating Methods 0.000 description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 238000013461 design Methods 0.000 description 6
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 6
- 238000007599 discharging Methods 0.000 description 5
- 230000006698 induction Effects 0.000 description 5
- 241000220317 Rosa Species 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 238000012216 screening Methods 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 235000005074 zinc chloride Nutrition 0.000 description 3
- 239000011592 zinc chloride Substances 0.000 description 3
- 239000012300 argon atmosphere Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000001376 precipitating effect Effects 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000002894 chemical waste Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000013528 metallic particle Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000011176 pooling Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/006—Wet processes
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/048—Purification of waste water by evaporation
-
- 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
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
- C02F1/62—Heavy metal compounds
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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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
- 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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- 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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Abstract
The application relates to a method and a system for treating cleaning waste liquid of a surface coating of an electronic connector, wherein the method for treating the cleaning waste liquid of the surface coating of the electronic connector comprises the following steps: adding active metal powder into the coating cleaning waste liquid, and continuously stirring for 4-5h to obtain a waste water suspension; conveying the waste water suspension into a sedimentation tank for sedimentation, sorting and collecting metal particles in the waste water suspension through eddy current sorting in the conveying process, and drying under the protection of inert atmosphere to obtain metal powder; separating the supernatant from the lower layer precipitate after the wastewater suspension in the sedimentation tank is separated into the supernatant and the lower layer precipitate; evaporating the supernatant to obtain crystalline salt; and washing the lower-layer precipitate, and finally drying under the protection of inert atmosphere to obtain the metal powder. The electronic connector surface coating cleaning waste liquid treatment system adopts the electronic connector surface coating cleaning waste liquid treatment method. This application has the effect that promotes cladding material washing waste liquid treatment efficiency.
Description
Technical Field
The application relates to the field of chemical waste liquid treatment, in particular to a method and a system for treating surface coating cleaning waste liquid of an electronic connector.
Background
Electronic connectors are devices for transmitting electronic signals, and common electronic connectors include power plugs, sockets, IC sockets, and telephone line plugs. When the electronic connector is used, current flows through contact terminals of the electronic connector, and in order to enable transmitted signals or electric quantity to be unaffected as much as possible, the contact resistance of the contact terminals is required to be as small as possible, and generally, the contact resistance is reduced by plating various metal layers with better conductivity on the contact terminals. After the contact terminal is plated with the plating layer, plating solution adhered to the surface of the contact terminal and the redundant plating layer need to be cleaned and removed, and generated plating layer cleaning waste liquid contains more plating layer metal ions and needs to be further treated.
The Chinese patent application with the application number of 201110457805.5 discloses a method for treating waste liquid after cleaning a copper plating layer of a printed circuit board, which comprises the following steps: adding zinc powder into the waste liquid after cleaning the copper coating of the printed circuit board for reaction, and adding the zinc powder while performing electromagnetic stirring reaction for 4-4.5 hours to obtain a zinc chloride solution and copper powder; and (3) pumping the reacted solution into a settling pond for settling for 20-24 hours, precipitating and separating zinc chloride of a supernatant from copper powder at the bottom layer, evaporating and crystallizing the supernatant to obtain anhydrous zinc dichloride, filtering and washing the copper powder separated by precipitation, and drying for about 20-24 hours under the protection of inert gas to obtain a copper powder product.
In view of the above-mentioned related art, the inventors considered that 20 to 24 hours are required for settling in the settling tank, and there is a drawback that the treatment efficiency is low.
Disclosure of Invention
In order to improve the treatment efficiency of the coating cleaning waste liquid, the application provides a method and a system for treating the coating cleaning waste liquid on the surface of an electronic connector.
In a first aspect, the application provides a method for treating a cleaning waste liquid of a surface coating of an electronic connector, which adopts the following technical scheme:
a method for treating the cleaning waste liquid of the surface coating of an electronic connector comprises the following steps:
the method comprises the following steps: adding active metal powder into the coating cleaning waste liquid, and continuously stirring for 4-5h to obtain a waste water suspension;
step two: conveying the wastewater suspension to a sedimentation tank for sedimentation, sorting and collecting metal particles in the wastewater suspension through eddy current sorting in the conveying process, and drying under the protection of inert atmosphere to obtain metal powder;
step three: after the wastewater suspension in the sedimentation tank is separated into upper clear liquid and lower sediment, separating the upper clear liquid from the lower sediment; evaporating the supernatant to obtain crystalline salt; and washing the lower-layer precipitate, and finally drying under the protection of inert atmosphere to obtain metal powder.
By adopting the technical scheme, firstly, the active metal powder reacts with the coating cleaning waste liquid, the coating metal in the coating cleaning waste liquid is replaced to form coating metal particle particles, a waste water suspension in which the coating metal particle particles are suspended is formed, then eddy current induction is carried out in the process that the waste water suspension is conveyed to a sedimentation tank, so that induced current is generated in the metal particle particles in the waste water suspension, the direction of a magnetic field generated by the induced current is opposite to the direction of an eddy current magnetic field, and the magnetic field has mutually repulsive force, and the coating metal particles fly out of the waste water suspension under the repulsive force effect, are collected and dried; and the waste water turbid liquid discharged into the sedimentation tank can reach the sedimentation requirement in a short time due to the great reduction of the suspended metal particles in the waste water turbid liquid, and then the upper layer clear liquid and the lower layer are respectively subjected to sedimentation treatment. Through adopting eddy current to select separately technology, carry out the preliminary screening processing to the waste water suspension before getting into the sedimentation tank for send into the metallic particle quantity in the waste water suspension that deposits in the sedimentation tank and reduce by a wide margin, and then make the sedimentation treatment can reach needs state fast, and the sedimentation step shortens by a wide margin consuming time, and cladding material washing waste liquid treatment efficiency can promote.
Optionally, after the wastewater suspension in the sedimentation tank is layered into a supernatant and a lower precipitate, separating the supernatant from the lower precipitate; evaporating the supernatant to obtain crystalline salt; and filtering and washing the lower layer precipitate, and finally drying under the protection of inert atmosphere to obtain metal powder.
By adopting the technical scheme, the upper layer clear liquid and the lower layer precipitate obtained by precipitation are respectively treated, and the obtained metal powder and the crystal salt can be recycled or sold, so that the method is clean, environment-friendly and high in economic benefit.
In a second aspect, the present application provides an electronic connector surface coating cleaning waste liquid treatment system, which adopts the following technical scheme:
a system for treating the waste cleaning liquid of the surface coating of an electronic connector comprises a precipitation generating mechanism, a precipitation separating mechanism, a precipitation treating mechanism and a clear liquid evaporating mechanism, the precipitation generating mechanism, the precipitation separating mechanism and the clear liquid evaporating mechanism are sequentially communicated, the precipitation separating mechanism comprises a separating chute, a sedimentation tank, an eddy current separator and a metal particle collecting tank, the upper end of the separating chute is connected with the precipitation generating mechanism, the lower end of the separation chute is arranged in the inner cavity of the sedimentation tank, the eddy current separator is arranged on one side of the separation chute far away from the opening of the separation chute, the metal particle collecting tank is arranged on one side of the separation chute far away from the eddy current separator, the metal particle collecting tank is arranged close to the bottom end of the separation chute, and the bottom wall of the metal particle collecting tank is provided with a filtering hole; the precipitation treatment mechanism is used for cleaning and drying the precipitate separated by the precipitation separation mechanism; the clear liquid evaporation mechanism is used for carrying out evaporation crystallization on the clear liquid in the sedimentation tank.
By adopting the technical scheme, the plating layer cleaning waste liquid is discharged into a precipitation generation mechanism for treatment to generate a waste water turbid liquid; then discharging the waste water suspension into a separation chute, enabling the waste water suspension to flow downwards by clinging to the wall of the separation chute by controlling the discharge speed of the waste water suspension, enabling metal particles in the waste water suspension to fly out in the direction far away from an eddy current separator under the action of the eddy current separator in the flowing process, falling into a metal particle collecting tank for collection, enabling the waste water suspension to flow into a sedimentation tank from the separation chute and then standing for sedimentation, and after the sedimentation is finished, discharging supernatant in the sedimentation tank into a clear liquid evaporation mechanism for evaporation and crystallization to obtain crystallized salt; and (3) sending the lower sediment at the bottom of the sedimentation tank into a sedimentation treatment mechanism for filtering and washing, and then drying the lower sediment and the metal particles in the metal particle collecting tank together by the sedimentation treatment mechanism to obtain metal powder. The precipitation separation mechanism of design carries out the metal particle screening through eddy current separator cooperation sedimentation tank and collects for the metal particle content in the waste water turbid liquid that flows into in the sedimentation tank from the separation chute reduces by a wide margin, and then makes the waste water turbid liquid in the sedimentation tank deposit and reduce by a wide margin to the time of using of needs state, is showing and has promoted cladding material washing waste liquid treatment efficiency.
Optionally, a plurality of drainage columns are arranged at intervals at the lower end of the separation chute along the length direction of the separation chute, and one end, far away from the separation chute, of each drainage column is abutted against the side wall of the sedimentation tank.
Through adopting above-mentioned technical scheme, carry out the drainage through the waste water turbid liquid of drainage post in to separating the chute for waste water turbid liquid can follow sedimentation tank pool wall and flow into the sedimentation tank, has effectively reduced the velocity of flow when waste water turbid liquid flows into the sedimentation tank, and then has reduced the disturbance to water in the sedimentation tank, and it is consuming time to help reducing the subsidence of metal particle in the water, has further promoted cladding material washing waste liquid treatment efficiency.
Optionally, be provided with the polylith step board in the separation chute, the step board is arranged along separation chute length direction interval, the contained angle between step board and the separation chute diapire is less than the contained angle between separation chute and the horizontal plane.
By adopting the technical scheme and the designed step plate, the flow velocity of the wastewater suspension in the separation chute is reduced in the multiple flowing mode conversion, and the influence on a water body when the wastewater suspension flows into the sedimentation tank is further reduced; the contained angle of the step board of design helps reducing the metal particle in the waste water turbid liquid and at the sedimentary possibility of step board and separation chute juncture, helps reducing the influence of the setting of step board to the metal particle rate of recovery.
Optionally, a hanging frame is arranged in the sedimentation tank, the hanging frame is placed at the bottom of the sedimentation tank, a plurality of groups of hanging tools are arranged on the upper portion of the inner cavity of the sedimentation tank, and the hanging tools are connected with the hanging frame.
By adopting the technical scheme, the lower-layer sediment deposited at the bottom of the sedimentation tank can be taken out conveniently, and the subsequent treatment is facilitated.
Optionally, a water inlet is arranged at the bottom of the side wall of the sedimentation tank, a water outlet is arranged at the bottom of the sedimentation tank, the water outlet is communicated with the clear liquid evaporation mechanism, and the bottom of the hanging frame corresponds to the water outlet and is provided with a plug.
By adopting the technical scheme, the designed water inlet and the water outlet are convenient for cleaning the bottom of the sedimentation tank, and are beneficial to ensuring the cleanness of the sedimentation tank; the jam of design for hang the frame and place and can carry out the shutoff to the delivery port when the sedimentation tank bottom, inside keeps sealing relatively when making the sedimentation tank use, reduces the sedimentation tank in the waste water turbid liquid continuous flowing possibility, reduce the delivery port setting to sedimentation tank sedimentation efficiency's influence, be convenient for in addition when clearing up the collection to the lower floor's precipitate in hanging the frame, clear up convenient and practical to the sedimentation tank.
Optionally, the sediment generation mechanism comprises a collection pool and a stirring tank, a liquid outlet pipe of the collection pool is communicated with a liquid inlet of the stirring tank, the liquid outlet pipe of the stirring tank is communicated with a separation chute, and an active metal feeding port is arranged on the stirring tank.
Through adopting above-mentioned technical scheme, collect cladding material washing waste liquid in gathering the pond, collect and discharge into the agitator tank after a certain amount and stir, the stirring in-process drops into active metal powder through the active metal dog-house for cladding material metal reaction in the cladding material washing waste liquid is appeared. The collection pond and the agitator tank cooperation of design, the periodic cladding material washing waste liquid that drops into in to the agitator tank stirs, because the waste water turbid liquid that the stirring obtained shortens in the standing time of sedimentation tank for the stirring process in the agitator tank is equivalent consuming time with the process of standing in the sedimentation tank, even can make whole processing system periodically use, has shortened the idle period of agitator tank, has promoted the treatment effeciency of cladding material washing waste liquid.
Optionally, deposit processing mechanism including washing subassembly and metal powder desiccator, it includes rose box and transfer storage tank to wash the subassembly, the transfer storage tank sets up in the rose box below, the inlet and the rose box liquid outlet of transfer storage tank correspond the setting, the liquid outlet and the sedimentation tank inner chamber intercommunication of transfer storage tank.
Through adopting above-mentioned technical scheme, the washing subassembly of design utilizes the supernatant in the dump case to carry out preliminary washing to the lower floor's sediment of shifting to the rose box, has reduced the clear water quantity of wasing the lower floor's sediment, water conservation environmental protection.
In summary, the present application includes at least one of the following beneficial technical effects:
1. by adopting an eddy current sorting process, the wastewater suspension before entering the sedimentation tank is subjected to pre-screening treatment, so that the quantity of metal particles in the wastewater suspension sent to the sedimentation tank for sedimentation is greatly reduced, the sedimentation treatment can quickly reach a required state, the time consumption of the sedimentation step is greatly shortened, and the treatment efficiency of the plating cleaning waste liquid is improved;
2. the designed precipitation separation mechanism is matched with the sedimentation tank through the non-current separator to perform metal particle screening and collection, so that the content of metal particles in the wastewater suspension flowing into the sedimentation tank from the separation chute is greatly reduced, the time for precipitating the wastewater suspension in the sedimentation tank to a required state is greatly reduced, and the treatment efficiency of the coating cleaning waste liquid is remarkably improved;
3. the collection pond and the agitator tank cooperation of design, the periodic cladding material washing waste liquid that drops into in to the agitator tank stirs, because the waste water turbid liquid that the stirring obtained shortens in the standing time of sedimentation tank for the stirring process in the agitator tank is equivalent consuming time with the process of standing in the sedimentation tank, even can make whole processing system periodically use, has shortened the idle period of agitator tank, has promoted the treatment effeciency of cladding material washing waste liquid.
Drawings
Fig. 1 is a schematic structural diagram of a system for treating waste cleaning solution for surface plating of an electronic connector according to a second embodiment of the present application.
FIG. 2 is a front view of the waste cleaning solution treatment system for surface coating of the electronic connector in FIG. 1.
FIG. 3 is a sectional view of the waste cleaning solution treatment system for surface plating of the electronic connector in FIG. 2.
Description of reference numerals: 1. a precipitate generating mechanism; 11. a collection pool; 111. a first liquid pump; 12. a stirring tank; 121. a metal feeding port; 1211. a feed chute; 2. a precipitation separation mechanism; 21. a sedimentation tank; 211. a liquid pumping pipe; 212. a second liquid pump; 213. hanging a frame; 2131. blocking; 214. a spreader; 2141. a hook; 2142. hoisting cables; 215. a water inlet; 216. a water outlet; 22. separating the chute; 221. a connecting rod; 222. a drainage column; 223. a step plate; 23. an eddy current separator; 24. a metal particle collection tank; 241. filtering holes; 3. cleaning the assembly; 31. a clear liquid tank; 32. a filter box; 33. a transfer storage tank.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses a method for treating cleaning waste liquid of a surface coating of an electronic connector. The method for treating the cleaning waste liquid of the surface coating of the electronic connector comprises the following steps:
the method comprises the following steps: adding the collected plating layer cleaning waste liquid and the active metal powder into a stirring tank 12 together, and continuously stirring for 4-5 hours to ensure that plating layer metals in the plating layer cleaning waste liquid are replaced by the active metal powder to obtain a wastewater suspension in which metal particles are suspended;
step two: conveying the waste water suspension into a sedimentation tank 21 for sedimentation, enabling metal particles in the waste water suspension to generate induction current through the action of an eddy current separator 23 in the conveying process, further generating an induction magnetic field, discharging the induction magnetic field from the waste water suspension under the action of magnetic field repulsion force, uniformly collecting the induction magnetic field, drying the collected metal particles in an argon atmosphere for 10 hours at the drying temperature of 140 ℃, and obtaining metal powder;
step three: after the wastewater suspension in the sedimentation tank 21 is layered into upper clear liquid and lower sediment, pumping out the upper clear liquid, and taking out the lower sediment to separate the upper clear liquid from the lower sediment; cleaning the taken lower-layer precipitate by using supernatant liquor, wherein the use amount of the supernatant liquor is 3 times of the weight of the lower-layer precipitate, cleaning the lower-layer precipitate again by using clear water after cleaning, discharging cleaning liquid generated by cleaning into a sedimentation tank 21 for secondary precipitation, and finally drying the cleaned lower-layer precipitate in an argon atmosphere for 10 hours at the drying temperature of 140 ℃ to obtain metal powder; evaporating and crystallizing the extracted supernatant to obtain the crystalline salt.
The embodiment of the application also discloses a system for treating the cleaning waste liquid of the surface coating of the electronic connector, and the method for treating the cleaning waste liquid of the surface coating of the electronic connector is adopted.
Referring to fig. 1, the system for treating the cleaning waste liquid of the surface coating of the electronic connector comprises a precipitation generating mechanism 1, a precipitation separating mechanism 2, a precipitation treating mechanism and a clear liquid evaporating mechanism. The precipitation treatment mechanism comprises a cleaning component 3 and a metal powder dryer, the clear liquid evaporation mechanism is arranged as an evaporation crystallizer, and the metal powder dryer and the evaporation crystallizer are not shown in the figure.
Referring to fig. 2 and 3, the sediment generation mechanism 1 includes a pooling tank 11 and an agitation tank 12. A liquid outlet pipe is inserted into the collecting pool 11, a first liquid pump 111 is mounted on the liquid outlet pipe of the collecting pool 11 through a flange, and the liquid outlet end of the liquid outlet pipe of the collecting pool 11 is inserted into the liquid inlet of the stirring tank 12; an active metal feeding port 121 is formed in the upper portion of the side wall of the stirring tank 12, a feeding groove 1211 is welded corresponding to the active metal feeding port 121, and a liquid outlet pipe is welded at the bottom of the stirring tank 12.
Referring to fig. 2 and 3, the precipitation separation mechanism 2 includes a precipitation tank 21, a separation chute 22, an eddy current classifier 23, and a metal particle collection tank 24. The sedimentation tank 21 is placed on one side of the stirring tank 12, the separation chute 22 is fixed on a support at the bottom of the stirring tank 12 through a connecting rod 221, the separation chute 22 is downwards inclined from high to low from one side close to the stirring tank 12 to one side far away from the stirring tank 12, and the upper end of the separation chute 22 is arranged below a liquid outlet pipe of the stirring tank 12 and can carry liquid discharged from the liquid outlet pipe of the stirring tank 12; a plurality of drainage columns 222 are arranged at intervals at the lower end of the separation chute 22 along the length direction of the separation chute 22, and one ends of the drainage columns 222 far away from the separation chute 22 are abutted against the inner side wall of the sedimentation tank 21; a plurality of step plates 223 are welded in the separation chute 22, the step plates 223 are arranged at intervals along the length direction of the separation chute 22, and the included angle between the step plates 223 and the bottom wall of the separation chute 22 is smaller than the included angle between the separation chute 22 and the horizontal plane. Eddy current sorter 23 keeps away from self open-ended one side at separation chute 22 through the bolt fastening, and metal particle collecting vat 24 sets up in one side that eddy current sorter 23 was kept away from to separation chute 22 to prop up through the bracing piece and establish in sedimentation tank 21 top, and be close to separation chute 22 bottom and set up, seted up filtration pore 241 on the metal particle collecting vat 24 diapire.
Referring to fig. 1 and 3, in order to facilitate the extraction of the supernatant in the sedimentation tank 21, a liquid-extracting pipe 211 is inserted into the sedimentation tank 21, a liquid-extracting end of the liquid-extracting pipe 211 is connected to a second liquid-extracting pump 212 through a flange, and a liquid-extracting end of the second liquid-extracting pump 212 is communicated with the evaporative crystallizer through a pipeline. In order to collect the lower-layer sediment in the sedimentation tank 21, a hanging frame 213 is arranged in the sedimentation tank 21, the hanging frame 213 is placed at the bottom of the sedimentation tank 21, four groups of hanging tools 214 are installed in the sedimentation tank 21, each hanging tool 214 comprises four hanging hooks 2141 which are in threaded connection with the upper portion of the inner wall of the sedimentation tank 21 and a hanging cable 2142 which is hung on each hanging hook 2141, the hanging hooks 2141 are respectively arranged close to the corners of the sedimentation tank 21, and the bottoms of the hanging cables 2142 are hung on the hanging frame 213. In order to clean the sedimentation tank 21 conveniently, a water inlet 215 is formed in the bottom of the side wall of the sedimentation tank 21, and the water inlet 215 is connected with a clean water pipeline; the bottom of the sedimentation tank 21 is provided with a water outlet 216, the water outlet 216 is used for being communicated with an evaporative crystallizer, the bottom of the hanging frame 213 is welded with a plug 2131 corresponding to the water outlet 216, and when the hanging frame 213 is placed at the bottom of the sedimentation tank 21, the plug 2131 is plugged in the water outlet 216 to seal the water outlet 216.
Referring to fig. 2 and 3, the cleaning assembly 3 includes a clear liquid tank 31, a filter tank 32 and a transit storage tank 33 which are arranged on one side of the sedimentation tank 21 away from the stirring tank 12, and the clear liquid tank 31, the filter tank 32 and the transit storage tank 33 are arranged in sequence from top to bottom; the clear liquid tank 31 is supported above the filter tank 32 through an upright column, a liquid inlet of the clear liquid tank 31 is communicated with a liquid outlet end of the second liquid pump 212 through a pipeline, and a liquid outlet of the clear liquid tank 31 is formed in the bottom wall of the clear liquid tank 31; the filter tank 32 supports on the transfer storage tank 33, and the filter tank 32 open-top sets up, has seted up the filtration pore on the filter tank 32 diapire, and the inlet of transfer storage tank 33 corresponds the setting with the filter, and the liquid outlet of transfer storage tank 33 and sedimentation tank 21 inner chamber are through installing the pipeline intercommunication of water pump 331.
The implementation principle of the embodiment 2 is as follows: the plating cleaning waste liquid is collected in the collecting pool 11, a certain amount of the plating cleaning waste liquid is collected and discharged into the stirring tank 12 for stirring, and active metal powder is thrown in through the active metal feed port 121 in the stirring process, so that plating metal in the plating cleaning waste liquid is reacted and separated out, and wastewater suspension is generated.
And then discharging the wastewater suspension into a separation chute 22, wherein metal particles in the wastewater suspension in the flowing process are subjected to the action of an eddy current separator 23, fly out in the direction away from the eddy current separator 23, fall into a metal particle collecting tank 24 and are collected, and the wastewater suspension flows into a sedimentation tank 21 from the separation chute 22 and then is settled.
After the precipitation is finished, pumping the supernatant in the sedimentation tank 21 to an evaporative crystallizer for evaporative crystallization to obtain crystallized salt, and storing part of the supernatant in a supernatant tank 31 for temporary storage; the hanging frame 213 is hung by the hanger 214, then the lower layer precipitate precipitated in the hanging frame 213 is scraped and collected, and is sent to the filter box 32 for filtering and washing, and after washing, the metal particles and the metal particles collected in the metal particle collecting tank 24 are sent to the metal powder dryer for drying, so as to obtain the metal powder.
The active metal powders used in the above examples were all zinc powders.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. The method for treating the cleaning waste liquid of the surface coating of the electronic connector is characterized by comprising the following steps of:
the method comprises the following steps: adding active metal powder into the coating cleaning waste liquid, and continuously stirring for 4-5h to obtain a waste water suspension;
step two: conveying the wastewater suspension into a sedimentation tank (21) for sedimentation, sorting and collecting metal particles in the wastewater suspension through eddy current sorting in the conveying process, and drying under the protection of inert atmosphere to obtain metal powder;
step three: after the wastewater suspension in the sedimentation tank (21) is layered into supernatant and lower sediment, separating the supernatant from the lower sediment; evaporating the supernatant to obtain crystalline salt; and washing the lower-layer precipitate, and finally drying under the protection of inert atmosphere to obtain metal powder.
2. The method for treating the waste cleaning solution of the surface coating of the electronic connector as claimed in claim 1, wherein the supernatant is used to clean the lower layer of the precipitate in the third step, and then the lower layer of the precipitate is cleaned with clean water, and the cleaning solution generated by the cleaning is discharged into the precipitation tank (21).
3. An electronic connector surface coating cleaning waste liquid treatment system is characterized in that the electronic connector surface coating cleaning waste liquid treatment system comprises a precipitation generation mechanism (1), a precipitation separation mechanism (2), a precipitation treatment mechanism and a clear liquid evaporation mechanism, wherein the precipitation generation mechanism (1), the precipitation separation mechanism (2) and the clear liquid evaporation mechanism are sequentially communicated, the precipitation separation mechanism (2) comprises a separation chute (22), a sedimentation tank (21), an eddy current separator (23) and a metal particle collecting tank (24), the separation chute (22) is obliquely arranged, the upper end of the separation chute (22) is connected with the precipitation generation mechanism (1), the lower end of the separation chute (22) is arranged in an inner cavity of the sedimentation tank (21), the eddy current separator (23) is arranged on one side of the separation chute (22) far away from an opening of the separation chute, the metal particle collecting tank (24) is arranged on one side, far away from the eddy current separator (23), of the separation chute (22) and close to the bottom end of the separation chute (22), and filtering holes (241) are formed in the bottom wall of the metal particle collecting tank (24); the precipitation treatment mechanism is used for cleaning and drying the precipitate separated by the precipitation separation mechanism (2); the clear liquid evaporation mechanism is used for carrying out evaporation crystallization on the clear liquid in the sedimentation tank (21).
4. The system for treating the surface coating cleaning waste liquid of the electronic connector as claimed in claim 3, wherein a plurality of drainage columns (222) are arranged at intervals at the lower end of the separation chute (22) along the length direction of the separation chute (22), and one end of each drainage column (222) far away from the separation chute (22) is abutted against the side wall of the sedimentation tank (21).
5. The system for treating the surface coating cleaning waste liquid of the electronic connector according to claim 3, wherein a plurality of step plates (223) are arranged in the separation chute (22), the step plates (223) are arranged at intervals along the length direction of the separation chute (22), and the included angle between the step plates (223) and the bottom wall of the separation chute (22) is smaller than the included angle between the separation chute (22) and the horizontal plane.
6. The system for treating the surface coating cleaning waste liquid of the electronic connector as claimed in claim 3, wherein a hanging frame (213) is arranged in the sedimentation tank (21), the hanging frame (213) is placed at the bottom of the sedimentation tank (21), a plurality of groups of hanging tools (214) are arranged at the upper part of the inner cavity of the sedimentation tank (21), and the hanging tools (214) are connected with the hanging frame (213).
7. The system for treating the surface coating cleaning waste liquid of the electronic connector as claimed in claim 6, wherein a water inlet (215) is arranged at the bottom of the side wall of the sedimentation tank (21), a water outlet (216) is arranged at the bottom of the sedimentation tank (21), the water outlet (216) is communicated with the clear liquid evaporation mechanism, and a plug (2131) is arranged at the bottom of the hanging frame (213) corresponding to the water outlet (216).
8. The system for treating the surface coating cleaning waste liquid of the electronic connector as claimed in claim 3, wherein the precipitation generating mechanism (1) comprises a collecting pool (11) and a stirring tank (12), a liquid outlet pipe of the collecting pool (11) is communicated with a liquid inlet of the stirring tank (12), a liquid outlet pipe of the stirring tank (12) is communicated with a separation chute (22), and an active metal feeding port (121) is arranged on the stirring tank (12).
9. The electronic connector surface coating cleaning waste liquid treatment system according to claim 3, wherein the precipitation treatment mechanism comprises a cleaning component (3) and a metal powder dryer, the cleaning component (3) comprises a filter box (32) and a transfer storage tank (33), the transfer storage tank (33) is arranged below the filter box (32), a liquid inlet of the transfer storage tank (33) is arranged corresponding to a liquid outlet of the filter box (32), and a liquid outlet of the transfer storage tank (33) is communicated with an inner cavity of the precipitation tank (21).
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102557297A (en) * | 2011-12-31 | 2012-07-11 | 重庆重冶铜业有限公司 | Treatment method of waste liquid after cleaning copper plated layer of printed circuit board |
| CN107881051A (en) * | 2017-10-23 | 2018-04-06 | 甘肃滨河食品工业（集团）有限责任公司 | A kind of method lost poor recycle device and lose grain recycling |
| CN109590106A (en) * | 2018-12-18 | 2019-04-09 | 招金矿业股份有限公司蚕庄金矿 | A kind of gravity treatment classifier overflow water recycling system |
| CN110142214A (en) * | 2019-06-03 | 2019-08-20 | 苏州嘉诺环境工程有限公司 | Decoration garbage separation system and method |
| CN112191667A (en) * | 2020-10-27 | 2021-01-08 | 广西中环生态环境产业有限公司 | Slag treatment system and method |
-
2021
- 2021-05-26 CN CN202110580915.4A patent/CN113526761B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102557297A (en) * | 2011-12-31 | 2012-07-11 | 重庆重冶铜业有限公司 | Treatment method of waste liquid after cleaning copper plated layer of printed circuit board |
| CN107881051A (en) * | 2017-10-23 | 2018-04-06 | 甘肃滨河食品工业（集团）有限责任公司 | A kind of method lost poor recycle device and lose grain recycling |
| CN109590106A (en) * | 2018-12-18 | 2019-04-09 | 招金矿业股份有限公司蚕庄金矿 | A kind of gravity treatment classifier overflow water recycling system |
| CN110142214A (en) * | 2019-06-03 | 2019-08-20 | 苏州嘉诺环境工程有限公司 | Decoration garbage separation system and method |
| CN112191667A (en) * | 2020-10-27 | 2021-01-08 | 广西中环生态环境产业有限公司 | Slag treatment system and method |
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