CN102304729A - Intensive cleaning treatment device for acidic volatile gas of silver electrolysis process and use method thereof - Google Patents

Intensive cleaning treatment device for acidic volatile gas of silver electrolysis process and use method thereof Download PDF

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Publication number
CN102304729A
CN102304729A CN201110297154A CN201110297154A CN102304729A CN 102304729 A CN102304729 A CN 102304729A CN 201110297154 A CN201110297154 A CN 201110297154A CN 201110297154 A CN201110297154 A CN 201110297154A CN 102304729 A CN102304729 A CN 102304729A
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volatile gas
ventilation duct
hollow shelf
electrolyzer
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CN102304729B (en
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李卫锋
王文胜
赵洪浩
夏胜文
徐诗燕
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Henan Yuguang Gold and Lead Co Ltd
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Henan Yuguang Gold and Lead Co Ltd
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    • YGENERAL 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
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Abstract

The invention relates to an intensive cleaning treatment device for the acidic volatile gas of the silver electrolysis process and a use method thereof. A ventilation system is added to an electrolytic cell body; under the action of a fan, negative pressure is formed on the surface of the electrolyte, the volatile gas of the electrolyte enters a clapboard box with the air flow, and then passes through a left ventilation duct and a right ventilation duct and enters a left ventilation duct collecting box and a right ventilation duct collecting box which are arranged at the front end of the electrolytic cell; the collected air flow enters a ventilation pipe which is connected with the left and right collecting boxes; most of the gas in the ventilation pipe is condensed to liquid which is recycled by a condenser; and the rest of the gas passes through a stainless steel fan and enters a purification absorption tower to be neutralized and discharged. By adopting the device and use method, the conditions of electrolyte waste and poor working environment in the prior art can be overcome; and the device has the advantages that: resources are saved, the environmental protection effect is good, operations are simple and convenient, the working environment is improved, etc.

Description

Sour Volatile Gas intensification cleaning device and method of use in the silver electrolytic process
Technical field
The invention belongs to the non-ferrous metal metallurgy industry, relate in particular to a kind of sour Volatile Gas intensification cleaning device and method of use that is used for the sour Volatile Gas intensification of silver-colored electrolytic process clean.
Background technology
The equipment that at present domestic silver-colored electrolytic process adopts is a kind of open electrolyzer; This electrolyzer is to be made by non-metallic material; And electrolytic solution is that processed and had by easy evaporable nitric acid must temperature requirement; In electrolytic process; Part nitric acid can be waved in the surrounding space, directly is discharged in the outer atmosphere of factory building by exhaust fan.
Present stage is domestic also do not have a tame enterprise in the electrolytic process in the electrolytic solution evaporable nitric acid acid mist clean that intensifies, and this acid mist can cause very big harm to aspects such as environment, equipment, safety, mainly shows following several respects:
1, the acid mist 100% that produces in the silver-colored electrolytic process evaporate into production plant, contacts with peripheral equipment to be agglomerated to rapidly on the equipment, makes the equipment heavy corrosion.
2, the acid mist of production plant is big, is prone to cause operator's respiratory disease, and now the employing increases the method solution operating environment environment problem that the smell is awful that exhaust fan adds high ventilating rate more.The ventilation volume of silver potroom is 3-5 a times of common workshop.
3, both contaminate environment is wasted resource again.The nitric acid acid mist that in electrolytic process, volatilizes directly is discharged to by exhaust fan and has not only polluted environment in the atmosphere, but also the consumption that has strengthened nitric acid.
Summary of the invention
The objective of the invention is to overcome the waste of nitric acid in the existing technology and the situation of working environment difference; Sour Volatile Gas intensification cleaning device and method of use in a kind of silver-colored electrolytic process are provided; On the electrolyzer cell body, increase ventilation system; Electrolyte surface forms negative pressure under the effect of blower fan; Reclaim the nitric acid acid mist that volatilizes in the electrolytic solution through ventilation system and reach the purpose that reclaims electrolytic solution and optimization work environment; This method has not only been filled up the blank of volatilization acid mist collection and treatment in the domestic electrolytic process, also has to economize on resources; Environment protecting is good; Simple to operation; Improve advantages such as operating environmental condition.
Technical scheme of the present invention is achieved in that
Sour Volatile Gas intensification cleaning device in a kind of silver-colored electrolytic process; Comprise electrolyzer; It is characterized in that: on the cell body of electrolyzer, be provided with Class A hollow shelf case, Class B hollow shelf case, left side ventilation duct, left and right sides air channel collector, right air path, dividing plate ventilation opening, electrolytic solution overflow port; Wherein Class A hollow shelf case and Class B hollow shelf case are the mechanism of electrolyzer own; The dividing plate ventilation opening is hollow shelf and Class B hollow shelf top and perpendicular to left side ventilation duct and right side ventilation duct in the Class A, and on the both sides of dividing plate length direction the dividing plate ventilation opening is arranged all; Class A hollow shelf case passes on left electrolyzer left side cell wall and links to each other with the left side ventilation duct, and Class B hollow shelf case right side links to each other with the right side ventilation duct through electrolyzer right side cell wall; The left side ventilation duct links to each other with the left and right sides air channel collector that is arranged on the electrolyzer leading section with the right side ventilation duct, and left and right sides air channel collector is connected with ventilator trunk; At stainless steel blower fan and ventilator trunk junction leading portion, the lowest part of ventilator trunk is provided with cooling cylinder, and the cooling cylinder bottom is provided with the condensate discharge valve, and terminal connection of ventilator trunk purifies the absorption tower.
In order to guarantee that the electrolytic solution Volatile Gas gets into ventilation system, install the high 10mm of median septum ventilation opening, wide 835mm, and the present position is than the high 10cm of liquid level of electrolyte.
In order to guarantee electrolysis liquid surface at settling position, on electrolyzer, establish the electrolytic solution overflow port, when electrolyte content was big, electrolytic solution can go out electrolyzer from the overflow of electrolytic solution overflow port, is recycled again.
In order to have guaranteed that airshed is basic identical between each dividing plate, the suction opening of every adjacent two Class A hollow shelf casees and Class B hollow shelf case is on relative position.
Sour Volatile Gas intensification cleaning device in the described silver-colored electrolytic process, the manufacturing materials system of electrolyzer and ventilation system all adopt not can be by acid electrolyte corrosive material, thereby can not cause electrolytic solution and finished product silver powder contaminated.
The method of use of sour Volatile Gas intensification cleaning device in a kind of silver-colored electrolytic process is characterized in that:
The step of this method is following:
At first; Under fan action; Electrolyte surface forms negative pressure; The electrolytic solution Volatile Gas gets into Class A hollow shelf case and Class B hollow shelf case with air-flow through the dividing plate ventilation opening; Get into left and right sides ventilation duct collector through the left and right sides ventilation duct, the air-flow after compiling gets into ventilator trunk, and after through a segment distance; These sour Volatile Gas can be condensed and gathered, and in cooling cylinder, form salpeter solution;
Then, regularly from cooling cylinder, give off salpeter solution through the condensate discharge valve, these salpeter solutions utilize after treatment again; And uncooled electrolytic solution Volatile Gas gets into the purification absorption tower with air-flow through the stainless steel blower fan, in purifying the absorption tower, carries out neutralization reaction, and the Purge gas after the neutralization reaction is discharged the entering atmosphere.
Described exhausting function is carried out exhausting to adjacent two column unit electrolyzers simultaneously, makes every column unit electrolytic tank electrolysis liquid level all receive identical negative pressure, thereby guarantees that the Volatile Gas in the electrolytic solution all gets into ventilation system.
The invention has the advantages that:
1, to adopt electrolyzer and ventilation system be the mechanism of one in the present invention, take up space little, do not influence tankage, look into necessary work in electrolytic process such as groove.
2, behind the use device of the present invention, reduced evaporable acid mist in 90% electrolytic process, operating environment improves greatly.
3, behind the use electrolyzer of the present invention, original ventilation system is that the factory building exhaust fan will be cancelled, and has avoided noise pollution.
4, can utilize through handling after the electrolytic solution Volatile Gas is recovered, 330 days=13200 kilograms of annual recyclable approximately nitric acid 40 kg/day * reduce the wasting of resources again.
5, after uncooled electrolytic solution Volatile Gas was handled through scavenging tower in the air channel, sour gas was neutralized the back discharging, has alleviated N0x gas to atmospheric pollution.
6, all adopt not can be by acid electrolyte corrosive material for electrolyzer and ventilation system, thereby can not cause electrolytic solution and finished product silver powder contaminated.
7, equipment making, easy to maintenance.
Description of drawings
Fig. 1 is the vertical view of electrolyzer of the present invention.
Fig. 2 is the sectional view of electrolyzer of the present invention.
Fig. 3 is the front view of electrolyzer of the present invention.
Fig. 4 connects synoptic diagram for the major equipment of sour Volatile Gas intensification cleaning device in the present invention's silver electrolytic process.
Embodiment
Like Fig. 1, Fig. 2, Fig. 3, shown in Figure 4; Sour Volatile Gas intensification cleaning device in a kind of silver-colored electrolytic process; Comprise electrolyzer; It is characterized in that: on the cell body of electrolyzer 1, be provided with Class A hollow shelf case 2, Class B hollow shelf case 3, left side ventilation duct 4, left and right sides air channel collector 5, right air path 6, dividing plate ventilation opening 7, electrolytic solution overflow port 8; Wherein Class A hollow shelf case 2 is the mechanism of electrolyzer own with Class B hollow shelf case 3; Hollow shelf case 2 and all has dividing plate ventilation opening 7 on the both sides of dividing plate length direction with Class B hollow shelf case 3 tops and perpendicular to left side ventilation duct 4 and right side ventilation duct 6 to dividing plate ventilation opening 7 in the Class A; The electrolyzer left side cell wall that passes on left of Class A hollow shelf case 2 links to each other with left side ventilation duct 4, and Class B hollow shelf case 3 right sides link to each other with right side ventilation duct 6 through electrolyzer right side cell wall; Left side ventilation duct 4 links to each other with the left and right sides air channel collector 5 that is arranged on the electrolyzer leading section with right side ventilation duct 6, and left and right sides air channel collector 5 is connected with ventilator trunk 9; At stainless steel blower fan 12 and ventilator trunk 9 junction leading portions, the lowest part of ventilator trunk 9 is provided with cooling cylinder 10, and cooling cylinder 10 bottoms are provided with condensate discharge valve 11, and 9 terminal connections of ventilator trunk purify absorption tower 13.
In order to guarantee that the electrolytic solution Volatile Gas gets into ventilation system, install median septum ventilation opening 7 high 10mm, wide 835mm, and the present position is than the high 10cm of liquid level of electrolyte.
In order to guarantee electrolysis liquid surface at settling position, on electrolyzer, establish electrolytic solution overflow port 8, can be when electrolyte content is big from 8 overflows of electrolytic solution overflow port from newly being recycled.
In order to have guaranteed that airshed is basic identical between each dividing plate, the suction opening of every adjacent two Class A hollow shelf casees 2 and Class B hollow shelf case 3 is on relative position.
In the described silver-colored electrolytic process in the sour Volatile Gas intensification cleaning device, the manufacturing materials system of electrolyzer and ventilation system all adopts not can be by acid electrolyte corrosive material, thereby can not cause electrolytic solution and finished product silver powder contaminated.
The method of use of sour Volatile Gas intensification cleaning device in a kind of silver-colored electrolytic process is characterized in that:
The step of this method is following:
At first; Under fan action; Electrolyte surface forms negative pressure; The electrolytic solution Volatile Gas gets into Class A hollow shelf case and Class B hollow shelf case with air-flow through the dividing plate ventilation opening; Get into left and right sides ventilation duct collector through the left and right sides ventilation duct, the air-flow after compiling gets into ventilator trunk, and after through a segment distance; These electrolytic solution Volatile Gas can be condensed and gathered, and in cooling cylinder, form salpeter solution;
Then, regularly from cooling cylinder, give off salpeter solution through the condensate discharge valve, these salpeter solutions utilize after treatment again; And uncooled sour Volatile Gas gets into the purification absorption tower with air-flow through the stainless steel blower fan, in purifying the absorption tower, carries out neutralization reaction, and the Purge gas after the neutralization reaction is discharged the entering atmosphere.
Described exhausting function is carried out exhausting to adjacent two column unit electrolyzers simultaneously, makes every column unit electrolytic tank electrolysis liquid level all receive identical negative pressure, thereby guarantees that the Volatile Gas in the electrolytic solution all gets into ventilation system.

Claims (7)

1. sour Volatile Gas intensification cleaning device in the silver-colored electrolytic process; Comprise electrolyzer (1); It is characterized in that: on the cell body of electrolyzer (1), be provided with Class A hollow shelf case (2), Class B hollow shelf case (3), left side ventilation duct (4), left and right sides air channel collector (5), right air path (6), dividing plate ventilation opening (7), electrolytic solution overflow port (8); Wherein Class A hollow shelf case (2) and Class B hollow shelf case (3) are the mechanism of electrolyzer own; Dividing plate ventilation opening (7) is hollow shelf case (2) and Class B hollow shelf case (3) top and perpendicular to left side ventilation duct (4) and right side ventilation duct (6) in the Class A, and on the both sides of dividing plate length direction dividing plate ventilation opening (7) is arranged all; The electrolyzer left side cell wall that passes on left of Class A hollow shelf case (2) links to each other with left side ventilation duct (4), and Class B hollow shelf case (3) right side links to each other with right side ventilation duct (6) through electrolyzer right side cell wall; Left side ventilation duct (4) links to each other with the left and right sides air channel collector (5) that is arranged on the electrolyzer leading section with right side ventilation duct (6), and left and right sides air channel collector (5) is connected with ventilator trunk (9); At stainless steel blower fan (12) and ventilator trunk (9) junction leading portion; The lowest part of ventilator trunk (9) is provided with cooling cylinder (10); Cooling cylinder (10) bottom is provided with condensate discharge valve (11), and terminal connection of ventilator trunk (9) purifies absorption tower (13).
2. sour Volatile Gas intensification cleaning device in the silver-colored electrolytic process according to claim 1, it is characterized in that: the suction opening of per two adjacent Class A hollow shelf casees (2) and Class B hollow shelf case (3) is on relative position.
3. sour Volatile Gas intensification cleaning device in the silver-colored electrolytic process according to claim 1 is characterized in that: the high 10mm of device median septum ventilation opening (7), and wide 835mm, and the present position is than the high 10cm of liquid level of electrolyte.
4. sour Volatile Gas intensification cleaning device in the silver-colored electrolytic process according to claim 1, it is characterized in that: the rearward end at electrolyzer (1) cell body is provided with electrolytic solution overflow port (8).
5. sour Volatile Gas intensification cleaning device in the silver-colored electrolytic process according to claim 1, it is characterized in that: said device is selected for use can be by acid electrolyte corrosive material as manufacturing materials.
6. the method for use of sour Volatile Gas intensification cleaning device in the silver-colored electrolytic process is characterized in that:
The step of this method is following:
At first; Under fan action; Electrolyte surface forms negative pressure; The electrolytic solution Volatile Gas gets into Class A hollow shelf case and Class B hollow shelf case with air-flow through the dividing plate ventilation opening; Get into left and right sides ventilation duct collector through the left and right sides ventilation duct, the air-flow after compiling gets into ventilator trunk, and after through a segment distance; These sour Volatile Gas can be condensed and gathered, and in cooling cylinder, form salpeter solution;
Then, regularly from cooling cylinder, give off salpeter solution through the condensate discharge valve, these salpeter solutions utilize after treatment again; And uncooled electrolytic solution Volatile Gas gets into the purification absorption tower with air-flow through the stainless steel blower fan, in purifying the absorption tower, carries out neutralization reaction, and the Purge gas after the neutralization reaction is discharged the entering atmosphere.
7. the method for use of sour Volatile Gas intensification cleaning device in the silver-colored electrolytic process according to claim 6; It is characterized in that: described exhausting function is carried out exhausting to adjacent two column unit electrolyzers simultaneously; Make every column unit electrolytic tank electrolysis liquid level all receive identical negative pressure, thereby guarantee that the Volatile Gas in the electrolytic solution all gets into ventilation system.
CN2011102971548A 2011-09-30 2011-09-30 Intensive cleaning treatment device for acidic volatile gas of silver electrolysis process and use method thereof Active CN102304729B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102743948A (en) * 2012-06-21 2012-10-24 蚌埠飞浦科技包装材料有限公司 Gas recovery device
CN104143667A (en) * 2013-08-23 2014-11-12 中航锂电(洛阳)有限公司 Method and device for collection of waste lithium ion battery electrolyte solution
CN110760883A (en) * 2019-11-08 2020-02-07 陈雨 Silver electrolysis acid mist collection and treatment device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003342775A (en) * 2002-05-24 2003-12-03 Murata Mfg Co Ltd Method of producing silver powder, silver powder and electronic parts
CN2697109Y (en) * 2004-04-15 2005-05-04 莱州天承新技术有限公司 Silver electrolytic device
CN201423239Y (en) * 2009-06-20 2010-03-17 永兴县元泰应用材料有限公司 Electrolytic sliver waste gas treatment device
CN202279859U (en) * 2011-09-30 2012-06-20 河南豫光金铅股份有限公司 Acid vaporizing gas intensified cleaning device in silver electrolytic process

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003342775A (en) * 2002-05-24 2003-12-03 Murata Mfg Co Ltd Method of producing silver powder, silver powder and electronic parts
CN2697109Y (en) * 2004-04-15 2005-05-04 莱州天承新技术有限公司 Silver electrolytic device
CN201423239Y (en) * 2009-06-20 2010-03-17 永兴县元泰应用材料有限公司 Electrolytic sliver waste gas treatment device
CN202279859U (en) * 2011-09-30 2012-06-20 河南豫光金铅股份有限公司 Acid vaporizing gas intensified cleaning device in silver electrolytic process

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102743948A (en) * 2012-06-21 2012-10-24 蚌埠飞浦科技包装材料有限公司 Gas recovery device
CN104143667A (en) * 2013-08-23 2014-11-12 中航锂电(洛阳)有限公司 Method and device for collection of waste lithium ion battery electrolyte solution
CN110760883A (en) * 2019-11-08 2020-02-07 陈雨 Silver electrolysis acid mist collection and treatment device
CN110760883B (en) * 2019-11-08 2020-12-04 王微静 Silver electrolysis acid mist collection and treatment device

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