CN102304729B - 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 PDFInfo
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- CN102304729B CN102304729B CN2011102971548A CN201110297154A CN102304729B CN 102304729 B CN102304729 B CN 102304729B CN 2011102971548 A CN2011102971548 A CN 2011102971548A CN 201110297154 A CN201110297154 A CN 201110297154A CN 102304729 B CN102304729 B CN 102304729B
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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
Technical field
The invention belongs to the non-ferrous metal metallurgy industry, relate in particular to a kind of intensive cleaning device of sour Volatile Gas and using method for the intensive clean of the sour Volatile Gas of silver-colored electrolytic process.
Background technology
The equipment that at present domestic silver-colored electrolytic process adopts is a kind of uncovered electrolyzer, this electrolyzer is to be made by non-metallic material, and electrolytic solution is that made and had by the nitric acid of easy volatilization 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 not to have a tame enterprise that the nitric acid acid mist that volatilizees in the electrolytic solution in the electrolytic process is carried out intensive clean, 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, easily causes operator's respiratory disease, and adopt increases the method solution operating environment environment problem that the smell is awful that exhaust fan adds high ventilating rate more now.The ventilation volume of silver potroom is 3-5 times of common workshop.
3, both contaminate environment is wasted resource again.The nitric acid acid mist that volatilizes in electrolytic process 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, the intensive cleaning device of sour Volatile Gas and using method in a kind of silver-colored electrolytic process are provided, increase ventilation system at the electrolyzer cell body, electrolyte surface forms negative pressure under the effect of blower fan, reclaim the nitric acid acid mist that volatilizes in the electrolytic solution by ventilation system and reach the purpose that reclaims electrolytic solution and optimize Working 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
The intensive cleaning device of sour Volatile Gas 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 on Class A hollow shelf and Class B hollow shelf top and perpendicular to left side ventilation duct and right side ventilation duct, and on the both sides of dividing plate length direction the dividing plate ventilation opening arranged; 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 by 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 enters 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, establish the electrolytic solution overflow port at electrolyzer, when electrolyte content was big, electrolytic solution can overflow electrolyzer from the 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.
The intensive cleaning device of sour Volatile Gas in the described silver-colored electrolytic process, the making material of electrolyzer and ventilation system system all adopt not can be by the material of acidic electrolysis corrosion, thereby can not cause electrolytic solution and finished product silver powder contaminated.
The using method of the intensive cleaning device of sour Volatile Gas in a kind of silver-colored electrolytic process is characterized in that:
The step of this method is as follows:
At first, under fan action, electrolyte surface forms negative pressure, the electrolytic solution Volatile Gas enters Class A hollow shelf case and Class B hollow shelf case with air-flow through the dividing plate ventilation opening, enter left and right sides ventilation duct collector through the left and right sides ventilation duct, the air-flow after compiling enters ventilator trunk, and after through a segment distance, these sour Volatile Gas can be condensed and be gathered, and form salpeter solution in cooling cylinder;
Then, regularly give off salpeter solution by the condensate discharge valve from cooling cylinder, these salpeter solutions are recycling after treatment; And uncooled electrolytic solution Volatile Gas enters the purification absorption tower with air-flow through the stainless steel blower fan, carries out neutralization reaction in purifying the absorption tower, and the Purge gas after the neutralization reaction is discharged and enters 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 be subjected to identical negative pressure, thereby guarantees that the Volatile Gas in the electrolytic solution all enters 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 the acid mist that volatilizees 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 recycling through handling after the electrolytic solution Volatile Gas is recovered, 330 days=13200 kilograms of annual recyclable approximately nitric acid 40 kg/day *, the minimizing wasting of resources.
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 the pollution of N0x gas to atmosphere.
6, all adopt not can be by the material of acidic electrolysis corrosion 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 is the major equipment connection diagram of the intensive cleaning device of sour Volatile Gas in the present invention's silver electrolytic process.
Embodiment
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, the intensive cleaning device of sour Volatile Gas 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 and Class B hollow shelf case 3 are the mechanism of electrolyzer own, dividing plate ventilation opening 7 is on Class A hollow shelf case 2 and Class B hollow shelf case 3 tops and perpendicular to left side ventilation duct 4 and right side ventilation duct 6, and on the both sides of dividing plate length direction dividing plate ventilation opening 7 arranged; 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 by 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 enters 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, establish electrolytic solution overflow port 8 at electrolyzer, can be from 8 overflows of electrolytic solution overflow port from newly being recycled when electrolyte content is big.
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 intensive cleaning device of sour Volatile Gas, the making material of electrolyzer and ventilation system system all adopts not can be by the material of acidic electrolysis corrosion, thereby can not cause electrolytic solution and finished product silver powder contaminated.
The using method of the intensive cleaning device of sour Volatile Gas in a kind of silver-colored electrolytic process is characterized in that:
The step of this method is as follows:
At first, under fan action, electrolyte surface forms negative pressure, the electrolytic solution Volatile Gas enters Class A hollow shelf case and Class B hollow shelf case with air-flow through the dividing plate ventilation opening, enter left and right sides ventilation duct collector through the left and right sides ventilation duct, the air-flow after compiling enters ventilator trunk, and after through a segment distance, these electrolytic solution Volatile Gas can be condensed and be gathered, and form salpeter solution in cooling cylinder;
Then, regularly give off salpeter solution by the condensate discharge valve from cooling cylinder, these salpeter solutions are recycling after treatment; And uncooled sour Volatile Gas enters the purification absorption tower with air-flow through the stainless steel blower fan, carries out neutralization reaction in purifying the absorption tower, and the Purge gas after the neutralization reaction is discharged and enters 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 be subjected to identical negative pressure, thereby guarantees that the Volatile Gas in the electrolytic solution all enters ventilation system.
Claims (7)
1. the intensive cleaning device of sour Volatile Gas 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 on Class A 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), and on the both sides of dividing plate length direction dividing plate ventilation opening (7) arranged; 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) by 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. the intensive cleaning device of sour Volatile Gas 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. the intensive cleaning device of sour Volatile Gas 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. the intensive cleaning device of sour Volatile Gas 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. the intensive cleaning device of sour Volatile Gas in the silver-colored electrolytic process according to claim 1 is characterized in that: described device is selected for use can be by the material of acidic electrolysis corrosion as making material.
6. the using method of the intensive cleaning device of sour Volatile Gas in the silver-colored electrolytic process is characterized in that:
The step of this method is as follows:
At first, under fan action, electrolyte surface forms negative pressure, the electrolytic solution Volatile Gas enters Class A hollow shelf case and Class B hollow shelf case with air-flow through the dividing plate ventilation opening, enter left and right sides ventilation duct collector through the left and right sides ventilation duct, the air-flow after compiling enters ventilator trunk, and after through a segment distance, these sour Volatile Gas can be condensed and be gathered, and form salpeter solution in cooling cylinder;
Then, regularly give off salpeter solution by the condensate discharge valve from cooling cylinder, these salpeter solutions are recycling after treatment; And uncooled electrolytic solution Volatile Gas enters the purification absorption tower with air-flow through the stainless steel blower fan, carries out neutralization reaction in purifying the absorption tower, and the Purge gas after the neutralization reaction is discharged and enters atmosphere.
7. the using method of the intensive cleaning device of sour Volatile Gas 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 be subjected to identical negative pressure, thereby guarantee that the Volatile Gas in the electrolytic solution all enters ventilation system.
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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 |
CN110760883B (en) * | 2019-11-08 | 2020-12-04 | 王微静 | Silver electrolysis acid mist collection and treatment device |
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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 |
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