CN104032328A - Environmental-protection and energy-conversion type diaphragm electrolysis device - Google Patents
Environmental-protection and energy-conversion type diaphragm electrolysis device Download PDFInfo
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- CN104032328A CN104032328A CN201410244250.XA CN201410244250A CN104032328A CN 104032328 A CN104032328 A CN 104032328A CN 201410244250 A CN201410244250 A CN 201410244250A CN 104032328 A CN104032328 A CN 104032328A
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Abstract
The invention relates to an environmental-protection and energy-conversion type diaphragm electrolysis device. The device comprises an electrolytic bath, cathode plates and anode plates, wherein the cathode plates and the anode plates are accommodated in the electrolytic bath; the device further comprises an acid mist catching device; the acid mist catching device comprises an acid mist absorption tower, a water pump and an exhaust fan; diaphragm frame sets are arranged between the cathode plates and the anode plates; acid mist collecting holes are formed in the two sides of the upper parts of the diaphragm frame sets, and form acid mist catching channels; acid mist generated on anode is caught through the exhaust fan; tower plates are arranged in the acid mist absorption tower; and the middle between the bottom end and the upper end of one side of the acid mist absorption tower is connected with the water pump to form water circulation. The environmental protection and energy conversion type diaphragm electrolysis device has the following benefits: the diaphragm frame sets are arranged to realize overall sealing of an anode room; the acid mist on the anode is effectively collected to eliminate the pollution; meanwhile, a forced catholyte circulating device realizes forced catholyte circulation to realize the purposes of eliminating the concentration polarization and improving the cathode current efficiency so as to reduce the electric consumption; and the device realizes the outer circulating cooling of the electrolytic bath, improves the cooling efficiency, and achieves the purposes of reducing the energy consumption and decreasing the cost.
Description
Technical field
The present invention relates to the electrolysis fields such as manganese, nickel, cobalt, is mainly a kind of environment-friendly and energy-efficient diaphragm electrolysis apparatus.
Background technology
At present in the actual production of the diaphragm electrolysises such as manganese, nickel, cobalt, anode generation electrochemical reaction produces a large amount of gas, when these gases are separated out on pole plate, initial stage is attached to electrode surface, along with bubble is grown up, in the time that bubble buoyancy is greater than sticking power, bubble departs from from pole plate, and float from solution, in bubble floating process, can mutually collide and form larger bubble.In the time that bubble arrives liquid level, due to the effect of surface liquid tension force, bubble overflows and must carry liquid from solution, and these bubbles that carry liquid run into after groove face freezing air, and explosion occurs, and forms liquid mist.Because solution composition is acid, thereby form a large amount of acid mists at groove face.Not only serious harm operating personnel healthy of these acid mists, pollutes environment on-the-spot and around, and factory building, equipment is caused to heavy corrosion, and increased certain reagent consumption.
Simultaneously, the diaphragm electrolysis techniques such as current traditional manganese, nickel, cobalt all adopt open type diaphragm frame, electrolytic solution feed liquor mode is low discharge low speed, concentrated area feed liquor mode, and electrolytic solution employing as cooling in need is installed cooling water drainage and disperseed cooling mode in every electrolyzer.Owing to adopting open type diaphragm frame, anode acid mist cannot be collected, cause the interior acid mist pollution of factory building serious, can only ventilate and dissipate by large flow, cannot thoroughly solve acid mist pollution problem; And low discharge, concentrated area feed liquor mode make the mn ion of cathode zone can not get effectively supplementing, cause negative electrode concentration polarization serious, cathode efficiency only can reach 70% left and right; Due to cooling water drainage being all set in every electrolyzer, not only make the useful space in electrolyzer diminish, affect production capacity and promote, and also cooling water pipeline complicated layout, cost of investment is higher, and its working cost is higher.
Summary of the invention
The object of the invention is to overcome the deficiency that prior art exists, and provide a kind of environment-friendly and energy-efficient diaphragm electrolysis apparatus, fundamentally eliminate the diaphragm electrolysis techniques such as acid mist pollution, raising cathode efficiency, the manganese that reduces cost of investment, nickel, cobalt, not only can reach easy and simple to handle, reduce production costs, the object of cleaner production, and can significantly reduce one-time investment cost.
The object of the invention is to complete by following technical solution, this environment-friendly and energy-efficient diaphragm electrolysis apparatus, comprise electrolyzer, negative plate and positive plate, this negative plate and positive plate are positioned in electrolyzer, this device comprises acid mist capturing device, described acid mist capturing device comprises acid fog absorption tower, water pump and vacuum fan, between described negative plate and positive plate, be provided with the diaphragm frame group for integral sealing anolyte compartment, both sides, diaphragm frame group top are provided with acid mist collecting hole, and form the built-in acid mist of diaphragm frame group trapping passage, this acid mist trapping passage is connected with the acid mist import on acid fog absorption tower by acid mist collecting pipe, the acid mist producing on anode is by the vacuum fan trapping being connected with acid fog absorption tower top, in described acid fog absorption tower, be provided with the column plate being interspersed, between the bottom of acid fog absorption tower one side and upper end, be connected with water pump by pipeline and form water cycle.
As preferably, this device also comprises catholyte forced circulation device and the concentrated refrigerating unit of catholyte, described catholyte forced circulation device comprises circulation tube, circulation groove and recycle pump, and described catholyte concentrates refrigerating unit to comprise the spiral coil cooling tube being arranged in circulation groove; Circulation tube is arranged in electrolyzer, and circulation tube is provided with feed liquor shower nozzle, and this feed liquor nozzle layout of sprinkler is in sidepiece or the bottom of each negative plate; Two sides of upper part of the electrolytic cell are respectively equipped with catholyte overflow port and anolyte overflow port, and described catholyte overflow port is connected with circulation groove by pipeline, and circulation groove is connected with circulation tube by recycle pump and forms catholyte pump circulation.
Beneficial effect of the present invention is: this device has solved the problem of acid mist disperse contaminate environment in diaphragm electrolysis process from root, reaches elimination environmental pollution, realizes the object of cleaner production; Meanwhile, also improve cathode efficiency, reduced power consumption cost, reached energy-saving and cost-reducing object; Concentrated cooling by realizing electrolytic solution, not only reduce investment, and reduced running cost.
Brief description of the drawings
Fig. 1 is acid mist capturing device structural representation of the present invention.
Fig. 2 is that catholyte of the present invention is concentrated the structural representation between refrigerating unit and catholyte forced circulation device.
Fig. 3 is the main TV structure schematic diagram of catholyte forced circulation device of the present invention.
Fig. 4 is catholyte forced circulation device plan structure schematic diagram of the present invention.
Fig. 5 is catholyte forced circulation device side-looking structural representation of the present invention.
Label in accompanying drawing is respectively: 1, electrolyzer; 2, negative plate; 3, positive plate; 4, acid mist capturing device; 5, catholyte forced circulation device; 6, catholyte is concentrated refrigerating unit; 7, diaphragm frame group; 11, catholyte overflow port; 12, anolyte overflow port; 41, acid fog absorption tower; 42, acid mist import; 43, water pump; 44, vacuum fan; 45, column plate; 46, acid mist collecting pipe; 51, circulation tube; 52, circulation groove; 53, recycle pump; 54, feed liquor shower nozzle; 61, spiral coil cooling tube; 71, acid mist collecting hole; 72, acid mist trapping passage.
Embodiment
Below in conjunction with drawings and Examples, the present invention is done to detailed introduction:
As Figure 1-5, this environment-friendly and energy-efficient diaphragm electrolysis apparatus, comprise electrolyzer 1, negative plate 2 and positive plate 3, this negative plate 2 and positive plate 3 are positioned in electrolyzer 1, this device comprises acid mist capturing device 4, catholyte forced circulation device 5 and catholyte are concentrated refrigerating unit 6, described acid mist capturing device 4 comprises acid fog absorption tower 41, water pump 43 and vacuum fan 44, between described negative plate 2 and positive plate 3, be provided with the diaphragm frame group 7 for integral sealing anolyte compartment, diaphragm frame group 7 both sides, top are provided with acid mist collecting hole 71, and form the built-in acid mist of diaphragm frame group 7 trapping passage 72, this acid mist trapping passage 72 is connected with the acid mist import 42 on acid fog absorption tower 41 by acid mist collecting pipe 46, the acid mist producing on anode traps by the vacuum fan 44 being connected with acid fog absorption tower 41 tops, in described acid fog absorption tower 41, be provided with the column plate 45 being interspersed, between the bottom of acid fog absorption tower 41 1 sides and upper end, be connected and form water cycle with water pump 43 by pipeline.Described catholyte forced circulation device 5 comprises circulation tube 51, circulation groove 52 and recycle pump 53, and described catholyte concentrates refrigerating unit 6 to comprise the spiral coil cooling tube 61 being arranged in circulation groove 52; Circulation tube 51 is arranged in electrolyzer 1, and circulation tube 51 is provided with feed liquor shower nozzle 54, and this feed liquor shower nozzle 54 is arranged in sidepiece or the bottom of each negative plate 2; Two sides on electrolyzer 1 top are respectively equipped with catholyte overflow port 11 and anolyte overflow port 12, and described catholyte overflow port 11 is connected with circulation groove 52 by pipeline, and circulation groove 52 is connected with circulation tube 51 by recycle pump 53 and forms catholyte pump circulation.
The acid mist capturing device 4 that apparatus of the present invention relate to, is by diaphragm frame group 7, realizes anolyte compartment's integral sealing, avoids acid fog outflow, is conducive to acid mist collecting.And at the built-in acid mist trapping of diaphragm frame group 7 passage 72, the acid mist that anode is produced traps completely and reclaims, and effectively collects anode acid mist.In electrolytic process, anode constantly produces acid mist, these acid mists seal collection by the acid mist collecting hole 71 in the diaphragm frame group 7 in each upper portion of anode chamber setting, and by the built-in acid mist trapping of diaphragm frame group 7 passage 72, under the effect of outside vacuum fan 44, be pooled in acid mist collecting pipe 46, finally enter into acid fog absorption tower 41, after absorbing, return and leach operation use.Fig. 1 is shown in by its device schematic diagram.Anode acid mist absorbs by trapping, and acid mist collecting rate reaches more than 90%, and groove face acid mist concentration is lower than 5mg/Nm
3.
The catholyte forced circulation device 5 that apparatus of the present invention relate to, to pass through electrolyte circulation system, after catholyte in electrolyzer is extracted out, then be back to electrolyzer 1, accelerate flow stream velocity in electrolyzer, and for every negative plate 2, at its sidepiece or bottom, feed liquor shower nozzle 54 is installed, electrolysis of solutions liquid Rapid Circulation around negative electrode is flowed, reduce negative electrode concentration polarization, reduce separating out of hydrogen and foreign ion, thus the cathode efficiency of increasing substantially.By catholyte feed liquor flow in electrolyzer 1 by 30-80m
3/ Mt brings up to 100-3000m
3/ Mt, cathode efficiency improves 2-10%, reaches 80-96%, and each electrolyzer Metal Production ability improves 5%-100%, and energy consumption of unit product reduces more than 5%.Fig. 3 to 5 is shown in by its device schematic diagram.
The catholyte that apparatus of the present invention relate to is concentrated refrigerating unit, is the catholyte of pump circulation is flow in circulation groove 52 certainly, and in circulation groove 52, spiral coil cooling tube 61 is set, and realizes electrolytic solution and concentrates cooling.Electrolytic solution carry out external concentrate cooling after, cooling power consumption reduces by 5%, electrolyzer space increases 10%, can make cathode size increase by 10%, under same current density, production capacity improves 10% left and right.Fig. 2 is shown in by its device schematic diagram.
Embodiment 1, taking electrolytic manganese as example
Manganese sulfate solution is adjusted to pH to 6.0-7.5, temperature control 38-42 DEG C, this manganese sulfate solution flow in electrolyzer 1 certainly from high-order chute, after manganese sulfate solution is full of electrolyzer, open the recycle pump 54 of catholyte, make catholyte self-circulation in electrolyzer, and form forced-flow at every cathode surface.When catholyte circular flow reaches 1500m
3/ Mt, is promoted to 350A/m by cathode current density
2, electrolysis, after 1 day, is taken out cathode product, and its cathode efficiency reaches 85%.
Embodiment 2 is taking electrolytic manganese as example
Manganese sulfate solution is adjusted to pH to 6.0-7.5, temperature control 38-42 DEG C, this manganese sulfate solution flow in electrolyzer 1 certainly from high-order chute, after manganese sulfate solution is full of electrolyzer, open the recycle pump 54 of catholyte, make catholyte self-circulation in electrolyzer, and form forced-flow at every cathode surface.When catholyte circular flow reaches 1000m
3/ Mt, is promoted to 350A/m by cathode current density
2, electrolysis, after 1 day, is taken out cathode product, and its cathode efficiency reaches 82%.
Embodiment 3 is taking electrolytic manganese as example
Manganese sulfate solution is adjusted to pH to 6.0-7.5, temperature control 38-42 DEG C, this manganese sulfate solution flow in electrolyzer 1 certainly from high-order chute, after manganese sulfate solution is full of electrolyzer, open the recycle pump 54 of catholyte, make catholyte self-circulation in electrolyzer, and form forced-flow at every cathode surface.When catholyte circular flow reaches 800m
3/ Mt, is promoted to 350A/m by cathode current density
2, electrolysis, after 1 day, is taken out cathode product, and its cathode efficiency reaches 80%.
Embodiment 4 is taking electrolytic manganese as example
Manganese sulfate solution is adjusted to pH to 6.0-7.5, temperature control 38-42 DEG C, this manganese sulfate solution flow in electrolyzer 1 certainly from high-order chute, after manganese sulfate solution is full of electrolyzer, open the recycle pump 54 of catholyte, make catholyte self-circulation in electrolyzer, and form forced-flow at every cathode surface.When catholyte circular flow reaches 500m
3/ Mt, is promoted to 350A/m by cathode current density
2, electrolysis, after 1 day, is taken out cathode product, and its cathode efficiency reaches 78%.
Be understandable that, for a person skilled in the art, technical scheme of the present invention and inventive concept be equal to replacement or change the protection domain that all should belong to the appended claim of the present invention.
Claims (2)
1. an environment-friendly and energy-efficient diaphragm electrolysis apparatus, comprise electrolyzer (1), negative plate (2) and positive plate (3), this negative plate (2) and positive plate (3) are positioned in electrolyzer (1), it is characterized in that: this device comprises acid mist capturing device (4), described acid mist capturing device (4) comprises acid fog absorption tower (41), water pump (43) and vacuum fan (44), between described negative plate (2) and positive plate (3), be provided with the diaphragm frame group (7) for integral sealing anolyte compartment, diaphragm frame group (7) both sides, top are provided with acid mist collecting hole (71), and form the built-in acid mist of diaphragm frame group (7) trapping passage (72), this acid mist trapping passage (72) is connected with the acid mist import (42) on acid fog absorption tower (41) by acid mist collecting pipe (46), the acid mist producing on anode is by vacuum fan (44) trapping being connected with acid fog absorption tower (41) top, in described acid fog absorption tower (41), be provided with the column plate (45) being interspersed, between the bottom of acid fog absorption tower (41) one sides and upper end, be connected and form water cycle with water pump (43) by pipeline.
2. environment-friendly and energy-efficient diaphragm electrolysis apparatus according to claim 1, it is characterized in that: this device also comprises catholyte forced circulation device (5) and the concentrated refrigerating unit (6) of catholyte, described catholyte forced circulation device (5) comprises circulation tube (51), circulation groove (52) and recycle pump (53), and described catholyte concentrates refrigerating unit (6) to comprise the spiral coil cooling tube (61) being arranged in circulation groove (52); Circulation tube (51) is arranged in electrolyzer (1), and circulation tube (51) is provided with feed liquor shower nozzle (54), this feed liquor shower nozzle (54) is arranged in sidepiece or the bottom of each negative plate (2); Two sides on electrolyzer (1) top are respectively equipped with catholyte overflow port (11) and anolyte overflow port (12), described catholyte overflow port (11) is connected with circulation groove (52) by pipeline, and circulation groove (52) is connected with circulation tube (51) by recycle pump (53) and forms catholyte pump circulation.
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| CN201410244250.XA CN104032328B (en) | 2014-06-04 | 2014-06-04 | A kind of environment-friendly and energy-efficient diaphragm electrolysis apparatus |
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| CN104032328B CN104032328B (en) | 2016-08-31 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105002523A (en) * | 2015-08-27 | 2015-10-28 | 吉首大学 | Manganese electrolysis liquid supplementing system |
| CN105063670A (en) * | 2015-08-27 | 2015-11-18 | 吉首大学 | Electrolytic manganese solution supplementing system |
| CN105063672A (en) * | 2015-08-27 | 2015-11-18 | 吉首大学 | Electrolytic manganese solution supplementing device |
| CN105063671A (en) * | 2015-08-27 | 2015-11-18 | 吉首大学 | Electrolytic manganese solution supplementing device |
| CN105177580A (en) * | 2015-08-25 | 2015-12-23 | 深圳市洁驰科技有限公司 | Acidic etching liquid copper electrolyzer |
| CN105671597A (en) * | 2016-02-04 | 2016-06-15 | 周勇 | Turbulent electrolytic cell and turbulent electrolytic production system consisting of turbulent electrolytic cell |
| CN110205646A (en) * | 2019-06-25 | 2019-09-06 | 江苏安凯特科技股份有限公司 | A kind of electrolytic cell small scale pilot experimental provision |
| CN112695344A (en) * | 2020-12-30 | 2021-04-23 | 金川集团股份有限公司 | Method for producing electrodeposited nickel |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105177580A (en) * | 2015-08-25 | 2015-12-23 | 深圳市洁驰科技有限公司 | Acidic etching liquid copper electrolyzer |
| CN105177580B (en) * | 2015-08-25 | 2017-10-31 | 深圳市洁驰科技有限公司 | A kind of acidic etching liquid cupric electrolysis device |
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| CN105063672A (en) * | 2015-08-27 | 2015-11-18 | 吉首大学 | Electrolytic manganese solution supplementing device |
| CN105063671B (en) * | 2015-08-27 | 2017-06-06 | 福建惠安县坚固电机有限公司 | Electrolytic manganese liquid supply device |
| CN105063672B (en) * | 2015-08-27 | 2017-06-06 | 福建惠安县坚固电机有限公司 | A kind of electrolytic manganese liquid supply device |
| CN105063670B (en) * | 2015-08-27 | 2017-10-13 | 江苏远华轻化装备有限公司 | Electrolytic manganese fluid infusion system |
| CN105063670A (en) * | 2015-08-27 | 2015-11-18 | 吉首大学 | Electrolytic manganese solution supplementing system |
| CN105671597A (en) * | 2016-02-04 | 2016-06-15 | 周勇 | Turbulent electrolytic cell and turbulent electrolytic production system consisting of turbulent electrolytic cell |
| CN105671597B (en) * | 2016-02-04 | 2018-06-22 | 周勇 | A kind of turbulent flow electrolytic cell, the turbulent flow electrolysis production system being made of turbulent flow electrolytic cell |
| CN110205646A (en) * | 2019-06-25 | 2019-09-06 | 江苏安凯特科技股份有限公司 | A kind of electrolytic cell small scale pilot experimental provision |
| CN110205646B (en) * | 2019-06-25 | 2024-02-02 | 江苏安凯特科技股份有限公司 | Small-size pilot scale experimental apparatus of electrolysis trough |
| CN112695344A (en) * | 2020-12-30 | 2021-04-23 | 金川集团股份有限公司 | Method for producing electrodeposited nickel |
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Address after: 311607 No. 929 Xin'An River Road, Yangxi street, Jiande, Hangzhou, Zhejiang Patentee after: HANGZHOU SANNAL ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Address before: 311607 No. 929 Xin'An River Road, Yangxi street, Jiande, Hangzhou, Zhejiang Patentee before: Hangzhou Sannai Environmental Protection Technology Co., Ltd. |