CN208389764U - A kind of acid mist absorbing device - Google Patents
A kind of acid mist absorbing device Download PDFInfo
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- CN208389764U CN208389764U CN201820591586.7U CN201820591586U CN208389764U CN 208389764 U CN208389764 U CN 208389764U CN 201820591586 U CN201820591586 U CN 201820591586U CN 208389764 U CN208389764 U CN 208389764U
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- acid mist
- gas
- tail gas
- pickling
- acid
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Abstract
A kind of acid mist absorbing device, mainly by exhaust system, acid mist processing system and exhaust emissions recovery and processing system composition, the exhaust system is out of, closed Pickling-shop, acid mist gas is sucked out by centrifugal high pressure air-introduced machine, it makes it into acid-mist-removing system, tower is cleaned by acid mist to remove acidic materials therein, after enter back into plenum chamber, gas is contacted sufficiently with the liquid in purification water pool by multi-stage breather road, by treated, tail gas passes through recovery port and the air inlet of Pickling-shop afterwards, it is again introduced into acid mist processing system, a small amount of purified tail gas drains into outdoor by chimney.The program greatly reduces discharge amount, and main acidic materials removal is clean in the gas for ensuring to be discharged, and improves the quality that gas discharges in a organized way, has further reached environment-friendly quality requirement.
Description
Technical field
The utility model relates to emission-control equipments, more particularly to a kind of acid mist absorbing device.
Background technique
It in steel tube hot galvanizing production technology, needs to be surface-treated the corrosion of steel tube surface by pickling, remove
Its iron scale and iron oxide are using hydrochloric acid or sulfuric acid solution, removing using sulfuric acid solution to the corrosion of steel tube surface,
It needs to be heated to sulfuric acid 40 DEG C or more, increases the consumption of the energy, and pickling speed is slow, present most of the country enterprise
Already through no longer using the process of sulfuric acid solution derusting.Using the technique of hydrochloride derusting, to the iron oxide of steel tube surface
The speed that derusts is fast, and ambient operation does not need to heat, and to the effect for being easy to judgement cleaning after steel tube surface derusting, has
It is produced conducive to the hot galvanizing of steel pipe.But when removing the iron oxide of steel tube surface with hydrochloric acid, it is easy to it volatilizees, acid mist, acid
It is very unfavorable that gas operates employee, although adding acid fog inhibitor in aqueous hydrochloric acid solution, due to derusting to acid cleaning of steel tube
During, the movement for repeatedly lifting in aqueous hydrochloric acid solution to steel pipe, falling is needed, to accelerate pickling speed and pickling matter
Amount, inevitably causes the volatilization and evolution of hydrochloric acid solution.Either steel tube hot galvanizing enterprise or other use hydrochloric acid removes
The enterprise of the iron oxide of steel surface typically now all uses the volatilization acid gas to hydrochloric acid, acid mist to collect in pickling trough rim, it may be assumed that
On one side dry, while the method inhaled acid gas, the acid mist of evolution be pumped into acid mist cleaning tower carry out organized absorptions handle acid gas,
Acid mist；Either acid cleaning of steel tube slot cover is got up using the method for movable guard, reduction acid gas, acid mist volatilize in workshop, still
It can not solve the problems, such as the processing of acid gas acid mist.
Although with acid mist cleaning tower using alkaline aqueous solution to the spray-absorption of acid gas acid mist, including using a tower or
The method of the spray-absorption of two towers.When eo-acid is added in steel pipe derusting descaling bath or is acid gas acid mist when highly concentrated
The degree of volatilization is different, however clean tower cleaning spray mode be it is constant, in this way since, certainly will be handled from acid mist
Ingredient containing acid in the fog that tower is discharged outward by chimney be also in variation, in this way since certainly will be also to environmentally friendly requirement
It has a certain impact.All there is such a problem in the existing acid gas of enterprise, acid mist processing equipment and processing system, and
A difficult point of the enterprise to acid gas, acid mist processing at present.
Utility model content
To solve the above problems, the utility model proposes a kind of acid mist absorbing devices.
The technical solution of the utility model is:
A kind of acid mist absorbing device, mainly by exhaust system, acid mist processing system and exhaust emissions recovery and processing system group
At, it is characterized in that:
The exhaust system includes air entry at the top of the workshop and suction pipe and centrifugal high pressure air-introduced machine；It is described
Workshop be closed Pickling-shop, the acid mist gas in workshop is sucked out in the air entry at the top of workshop, passes through centrifugal high pressure air-introduced machine
Pickling-shop is sucked out；
The acid mist processing system includes acid mist cleaning tower and ventilation pipe, and acid mist cleans tower will be in exhaust gas using spray
Acid mist gas remove, acid mist cleans tower, is connected by ventilation pipe between centrifugal high pressure air-introduced machine, the ventilation after acid mist cleaning tower
Axial flow blower is housed, pickling gas is introduced acid mist and cleans tower by centrifugal high pressure air-introduced machine, by spray by acid mist gas on pipeline
After processing, tail gas introduces follow-up equipment by axial flow blower；
The exhaust emissions recovery and processing system includes axial flow blower, vent gas treatment plenum chamber and tail gas ventilation pipe,
The vent gas treatment plenum chamber is closed room, and there is divider wall in inside；Divider wall side is purification water pool；The divider wall other side
Area is stood for tail gas, exhaust chimney is arranged at top；
It is placed with the rectangle pickling tube to form a line inside the closed Pickling-shop and is located at pickling tube one end
Tail gas clean-up pond, be passed through in tail gas clean-up pond from the tail gas ventilation pipe that air inlet protrudes into Pickling-shop, it is described
Tail gas ventilation pipe is multilevel structure；
The tail gas ventilation pipe multilevel structure is caliber step reduction structure, is connected with below every section of tail gas ventilation pipe
Purge pipe in varying numbers, purge pipe mouth are passed through below the liquid level in tail gas clean-up pond；To make from vent gas treatment collection
The tail gas that gas tank comes out further, is preferably dissolved in the water in tail gas clean-up pond.
The circulatory system that exhaust system, acid mist processing system and exhaust emissions recovery and processing system are combined into, by pickling vehicle
Between acid mist gas handled after, wherein most is added in Pickling-shop, reduce polluted gas discharge amount, protection ring
Border.
Preferably, the acid mist processing system is according to the acid mist for generating gas difference, concentration different designs different number
Clean tower, it is ensured that treated that gas is up to standard by the system.
Preferably, the closed job-shop and ventilation pipe material are acid resisting material.
Preferably, described divider wall or so orientation ratio is 5:2, and divider wall is away from plenum chamber distance from top 30cm, the knot
Structure make it is most of treated that tail gas enters Pickling-shop, continue purified treatment, reach reduction emission effect, excessive gas
It is discharged from chimney.
The technical effect of the utility model
The acid mist absorbing device has effectively removed the acid waste gas of Pickling-shop generation, while treated gas is through alkali
Property purification water pool purification after, recycle, reached effects of energy saving and emission reduction, meet country gas emission request, meanwhile, the dress
The circulatory function set has been greatly reduced the discharge amount of exhaust gas of Pickling-shop.
Detailed description of the invention
Fig. 1 is acid mist absorbing device schematic view of the front view；
Fig. 2 is the A-A Pickling-shop the schematic diagram of the section structure of Fig. 1；
Fig. 3 is the B-B the schematic diagram of the section structure of Fig. 2；
Fig. 4 is acid mist absorbing device overlooking structure diagram；
1. Pickling-shop hermatic doors in figure, 2. Pickling-shops, 3. air entries, 4. pipelines, 5. gas in pipelines flow directions,
6. axial flow blower, 7. chimneys, 8. recovery ports, 9. purification water pools, 10. vent gas treatment plenum chambers, 11. acid mists clean tower, 12. high pressures
Centrifugal induced draught fan, 13. tail gas air inlets, 14. classification recovery tubes, gas flow direction, 15. tail gas clean-ups in 1401. offgas ducts
Pond, 16. pickling tubes, 17. tail gas ventilation pipes.
Specific embodiment
Embodiment one: referring to Fig. 1-4, a kind of acid mist absorbing device in figure, mainly by exhaust system, acid mist processing system and
Exhaust emissions recovery and processing system composition, it is characterized in that:
The exhaust system includes air entry at the top of the workshop and suction pipe and centrifugal high pressure air-introduced machine；It is described
Workshop be closed Pickling-shop, the acid mist gas in workshop is sucked out in the air entry at the top of workshop, passes through centrifugal high pressure air-introduced machine
Pickling-shop is sucked out and enters acid mist cleaning tower；
The acid mist processing system includes acid mist cleaning tower and ventilation pipe, and acid mist cleans tower will be in exhaust gas using spray
Acid mist gas remove, acid mist cleans tower, is connected by ventilation pipe between centrifugal high pressure air-introduced machine, the ventilation after acid mist cleaning tower
Axial flow blower is housed, pickling gas is introduced acid mist and cleans tower by centrifugal high pressure air-introduced machine, by spray by acid mist gas on pipeline
After processing, tail gas introduces follow-up equipment by axial flow blower；
The exhaust emissions recovery and processing system includes axial flow blower, vent gas treatment plenum chamber and tail gas ventilation pipe,
The vent gas treatment plenum chamber is closed room, and there is divider wall in inside；Divider wall side is purification water pool；The divider wall other side
Area is stood for tail gas, exhaust chimney is arranged at top；Water in the purification water pool of divider wall side is alkaline aqueous solution.
It is placed with the rectangle pickling tube to form a line inside the closed Pickling-shop and is located at pickling tube one end
Tail gas clean-up pond, be passed through in tail gas clean-up pond from the tail gas ventilation pipe that air inlet protrudes into Pickling-shop, it is described
Tail gas ventilation pipe is multilevel structure；
The tail gas ventilation pipe multilevel structure is caliber step reduction structure, is connected with below every section of tail gas ventilation pipe
Purge pipe in varying numbers, purge pipe mouth are passed through below the liquid level in tail gas clean-up pond；To make from vent gas treatment collection
The tail gas that gas tank comes out further, is preferably dissolved in the water in tail gas clean-up pond；Water in purification water pool is alkaline water
Solution.
The circulatory system that exhaust system, acid mist processing system and exhaust emissions recovery and processing system are combined into, by pickling vehicle
Between acid mist gas handled after, wherein fraction, which is given, discharges, reduce polluted gas discharge amount, protect environment.
The acid mist processing system cleans tower according to the acid mist for generating gas difference, concentration different designs different number,
Ensure that treated that gas is up to standard by the system.
The closed job-shop and ventilation pipe material is acid resisting material.
Described divider wall or so orientation ratio is 5:2, and divider wall makes big portion away from plenum chamber distance from top 30cm, the structure
Point treated, and tail gas continues purified treatment, reaches reduction emission effect, and excessive gas is discharged from chimney.
The application method of the present apparatus is:
1, when Pickling-shop carries out pickling, while centrifugal high pressure air-introduced machine is opened, the acid mist gas that Pickling-shop is generated
Body sucks in tail gas ventilation pipe；
2, acid mist gas enters acid mist by centrifugal high pressure air-introduced machine and cleans in tower, by the way that the cleaning solution broken up is sprayed gas
Body is cleaned, to remove the acidic materials in gas；
3, acid mist gas cleans tower by multiple acid mists, to ensure that it is clean that acidic materials exclude；
4, acid mist gas sucks vent gas treatment plenum chamber after acid mist cleans tower, by axial flow blower, and tail gas at this time is again
Purified treatment is carried out by the purified water on divider wall one side.The purified water is alkaline aqueous solution, and pH value controls between 12 ~ 14；
5, after gas passes through purification water pool, most of gas is sucked into pickling via the axial flow blower on tail gas ventilation pipe
In workshop, into the purge pipe under each section of ventilation pipe, purge pipe is protruded into below the liquid level of tail gas clean-up pond, and gas is logical
It crosses and is distributed in different purge pipes, increase the contact area with liquid, increase purification efficiency；The tail gas clean-up pond
For alkaline aqueous solution, pH value is controlled between 12 ~ 14；
6, tail gas, which enters, to be entered acid mist cleaning tower again by centrifugal high pressure fan pump-line after Pickling-shop and is sprayed
Acid-mist-removing processing is drenched, a circulation is completed.
Claims (4)
1. a kind of acid mist absorbing device is mainly made of exhaust system, acid mist processing system and exhaust emissions recovery and processing system,
It is characterized in that:
The exhaust system includes air entry at the top of the workshop and suction pipe and centrifugal high pressure air-introduced machine；The factory
Room is closed Pickling-shop, has air entry at the top of workshop, and acid is sucked out by centrifugal high pressure air-introduced machine in the acid mist gas in workshop
Car wash；
The acid mist absorption system includes acid mist cleaning tower and ventilation pipe, and acid mist cleaning tower removes acid mist gas, acid mist
It cleans between tower, centrifugal high pressure air-introduced machine and is connected by ventilation pipe, axis stream wind is housed on the ventilation pipe after acid mist cleaning tower
Machine；
The exhaust gas recovery system includes axial flow blower, vent gas treatment plenum chamber and tail gas ventilation pipe, at the tail gas
There is divider wall inside reason plenum chamber；Divider wall side is purification water pool, and the divider wall other side is that tail gas stands area, and tail gas stands area
Exhaust chimney is arranged at top；Water in the purification water pool of Pickling-shop is alkaline solution, and tail gas admission line protrudes into alkaline aqueous solution
Underwater, have purification gas recovery port above purification water pool, recovery port inside tail gas ventilation pipe and workshop by communicating；
The rectangle pickling tube to form a line and the tail positioned at pickling tube one end are placed with inside the closed Pickling-shop
Gas purification water pool, the water in the tail gas clean-up pond of Pickling-shop is alkaline solution, and tail gas ventilation pipe protrudes into alkaline aqueous solution
Underwater, the tail gas ventilation pipe be multilevel structure；
The multilevel structure of the tail gas ventilation pipe is caliber step reduction structure；Quantity is connected with not below every section of exhaust pipe
Deng purge pipe, purge pipe mouth is passed through below the liquid level of clarifier-tank.
2. a kind of acid mist absorbing device as described in claim 1, it is characterised in that: the acid mist processing system is according to generation
The acid mist cleaning tower of gas difference, concentration different designs different number.
3. a kind of acid mist absorbing device as described in claim 1, it is characterised in that: the Pickling-shop and ventilation pipe material
Matter is acid resisting material.
4. a kind of acid mist absorbing device as described in claim 1, it is characterised in that: the divider wall or so in the plenum chamber
Orientation ratio is 5:2, and divider wall is away from plenum chamber distance from top 30cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820591586.7U CN208389764U (en) | 2018-04-24 | 2018-04-24 | A kind of acid mist absorbing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820591586.7U CN208389764U (en) | 2018-04-24 | 2018-04-24 | A kind of acid mist absorbing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208389764U true CN208389764U (en) | 2019-01-18 |
Family
ID=65063001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820591586.7U Active CN208389764U (en) | 2018-04-24 | 2018-04-24 | A kind of acid mist absorbing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208389764U (en) |
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2018
- 2018-04-24 CN CN201820591586.7U patent/CN208389764U/en active Active
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