CN1365848A - Device and process for cleaning tail gas - Google Patents
Device and process for cleaning tail gas Download PDFInfo
- Publication number
- CN1365848A CN1365848A CN 01116762 CN01116762A CN1365848A CN 1365848 A CN1365848 A CN 1365848A CN 01116762 CN01116762 CN 01116762 CN 01116762 A CN01116762 A CN 01116762A CN 1365848 A CN1365848 A CN 1365848A
- Authority
- CN
- China
- Prior art keywords
- water
- tail gas
- pipe
- spray
- reaction tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
A treater for cleaning tail gas of calcining kiln is composed of showering chamber, absorption tower, water tank, boiling reactor and high-pressure draught fan. The high-temp tail gas from the calcining kiln flows through the said showering chamber, absorption tower, boiling reactor and absorbing activated carbon column to absorb all of the SO2, CO, HF and NO from tail gas. Its advantages include simple structure, low cost and generating ferrous sulfate as by-product.
Description
The invention relates to a tail gas purification treatment device and a process completed by the device.
The tail gas generated by smelting aluminum sulfate, zinc sulfate, rare earth and other minerals contains a large amount of sulfur dioxide SO2And dust, and the like, and in order to remove these harmful substances, a method of spraying with alkaline water has been used, which is feasible, but has high cost and produces a large amount of Na2SO3、Na2SO4Extracting Na from the sewage2SO3、Na2SO4The process is complex in process and high in cost, people often abandon the process, so that waste is caused, and a new pollution source is generated; some people also use a low-temperature roasting method to solve the pollution of harmful gases, but the method has long production period and sulfur dioxide SO2Slowly dispersed and released, and dischargedDoes not reduce and can not fundamentally solve the problem of sulfur dioxide SO2The pollution problem of (2).
Aiming at the defects of the prior art, the invention provides a method for effectively removing sulfur dioxide SO in tail gas2Dust and the like, and low cost, and a process completed by the device.
To achieve the purpose of the invention, the technical solution of the invention is as follows: a tail gas purification treatment device is characterized by comprising a spray room, a purification water storage tank, an absorption tower, a boiling reaction tank and a high-pressure induced draft fan; the spray room is a high-narrow long pipeline, the front part of the spray room is provided with an air inlet, the tail end of the spray room is provided with an air outlet, the upper end of the spray room is provided with a water supply pipe inlet, the bottom of the spray room is provided with a sewage draining port, the middle of the top end in the pipeline is provided with an acid-resistant spray device, the spray device is connected with the water supply pipe, the water supply pipe is connected with a water source through a water pump, the left part and the right part of the water supply pipe are provided with acid-resistant isolation blocking devices with air channels at intervals, the sewage draining port is connected with a purification water storage tank through a water pipe, the air outlet of the spray room is connected with the air inlet of the absorption tower through a high-pressure draught fan by the pipeline, the upper part of the absorption tower is provided with a water nozzle pipeline inlet and an air outlet, the lower part is provided with a sewage draining port and an air, the air outlet is connected with the inlet of an air inlet pipe of the boiling reaction tank through a high-pressure draught fan by a pipeline, the boiling reaction tank is a sealed water storage tank, the upper end of the boiling reaction tank is provided with the inlet of the air inlet pipe, the inlet of an air outlet pipe and the inlet of an upper water pipe, the lower part of the boiling reaction tank is provided with the inlet of a drain pipe with a valve, a radial gas spray pipe is arranged below the air inlet pipe, the radial gas spray pipe extends into the liquid level of the boiling reaction tank and is at a distance from the bottom surface of the reaction tank.
The tail gas purifying treatment device also comprises a recovery reaction tank and a crystallizing device, wherein the recovery reaction tank is filled with iron nitrate, the purifying water storage tank is provided with a drain pipe communicated with the recovery reaction tank, and water filtered by the crystallizing device is communicated with the purifying water storage tank through a return pipe.
In the tail gas purification treatment device, the high-pressure draught fan between the spray chamber and the absorption tower can be a water-spraying high-pressure draught fan: the water spraying high pressure draught fan is that a small water spraying device is added at the air inlet of the common high pressure draught fan.
The tail gas purifying treatment device of the invention can also add an active carbon absorption column at the inlet of the air outlet pipe of the boiling reaction tank, and the absorption column is connected with a chimney.
To achieve another object of the present invention, the technical solution of the present invention is: a tail gas purification treatment process completed by the tail gas purification treatment device is characterized in that: (1) high-temperature tail gas generated by a roasting kiln and the like enters the spray chamber from the gas inlet of the spray chamber, is prevented from going forward disorderly by each isolation and blocking device with a gas channel, is sprayed downwards by the spraying device, most of dust in the tail gas is prevented from falling, most of water sprayed by the spraying device is changed into water vapor, the tail gas contains a large amount of oxygen, the water vapor and sulfur dioxide SO2Oxygen O2Nitrogen monoxide (trace), hydrogen fluoride (trace) and dust are fully contacted, the hydrogen fluoride is absorbed by water to form hydrofluoric acid, and the sulfur dioxide and the water generate sulfurous acid Sulfur trioxide is formed from sulfur dioxide and oxygen The nitrogen monoxide and oxygen form nitrogen dioxide The nitrogen dioxide and sulfur dioxide generate sulfur trioxide and nitrogen monoxide Therefore, a small amount of nitric oxide can promote sulfur dioxide to generate sulfur trioxide, dust can promote sulfur dioxide to generate sulfur trioxide, and the sulfur trioxide is very easy to dissolve in water to generate sulfuric acid, so that a large amount of sulfur dioxide is changed into sulfurous acid and sulfuric acid, hydrogen fluoride is changed into hydrofluoric acid, the residual tail gas with reduced temperature is sent into the absorption tower by the high-pressure draught fan, and the settled acid-containing sewage is sent into the purification water storage tank by the sewage discharge pipe to be purified and then is supplied to the absorption tower for water; (2) the tail gas sent into the absorption tower flows from bottom to top, and the tail gas flows from bottom to topThe device which makes the gas flow disorderly in the absorption tower flows disorderly and slowly, the water spray head in the absorption tower sprays water from top to bottom, the gas is fully contacted with the water, the dust is settled, and a large amount of sulfur trioxide (SO) is generated3When the gas is absorbed by the acid water containing sulfuric acid, the tail gas is absorbed by an absorption tower and then is introduced into a boiling reaction tank through a high-pressure draught fan, and the sewage enters a purification water storage tank from a sewage discharge outlet and is purified and then is reused by the absorption tower; (3) the gas sent into the boiling reaction tank is sprayed out by the radial gas spray pipe and fully contacts with water in the reaction tank to absorb the residual sulfur dioxide SO in the tail gas2Sulfur trioxide, SO3And when the gas is exhausted into a chimney through an air outlet pipe of the boiling reaction tank, the water in the boiling reaction tank is exhausted into a purification water storage tank through a water outlet pipe after reaching a certain sulfuric acid concentration, and then the water is changed through a water inlet pipe.
The tail gas purification treatment process can also comprise the step (4): the sulfuric acid in the purification water storage tank is discharged into a recovery reaction tank after reaching a certain concentration, the sulfuric acid reacts with iron nitrate to generate ferrous sulfate, the ferrous sulfate is concentrated and crystallized, and the filtered water isdischarged back into the purification water storage tank for use.
The tail gas from the boiling reaction tank in the tail gas purification treatment process can be absorbed by an activated carbon absorption column and then discharged into a chimney.
In the tail gas purification treatment process, the small water spraying device in the water spraying high-pressure draught fan can spray water to the tail gas to absorb sulfur dioxide SO in the process from the spraying chamber to the absorption tower2Sulfur trioxide, SO3Wait for the gas, and settle the dust.
Due to the adoption of the scheme, the tail gas discharged from the roasting kiln has high temperature and contains a large amount of oxygen, and after contacting with water and water vapor in the spray chamber, part of sulfur dioxide SO2Change into sulfurous acid H2SO3A part of the sulfur dioxide becomes sulfur trioxide, SO3Sulfur trioxide, SO3Most of hydrogen fluoride is absorbed by water to become hydrofluoric acid, and then is absorbed by water containing sulfuric acid through an absorption tower, SO that a large amount of sulfur trioxide (SO)3Absorbed by water at the place, even if the tail gas also contains sulfur dioxide, sulfur trioxide and the likeGas, water in the reaction tank being boiled againAbsorbing the tail gas, absorbing the tail gas by active carbon, and treating the sulfur dioxide SO layer by layer2The harmful gases such as hydrogen fluoride HF, carbon monoxide CO, hydrogen monoxide NO and the like are basically and completely absorbed, and a large amount of dust is settled, SO that the tail gas discharged from the chimney does not contain harmful gases, the Greenman value of the dust is less than 0.001, the environment is not polluted, the technology has the advantages of simple structure, low cost and easy operation, and due to the repeated utilization of water, the technology not only promotes the sulfur trioxide SO3The absorption of the water is realized, and the water source is saved; waste sulfuric acid H in sewage2SO4Is reused, and creates new value.
The present invention will be described in detail with reference to the following drawings and specific embodiments:
FIG. 1 is a schematic diagram of the apparatus layout and process flow diagram of the present invention;
FIG. 2 is a schematic view of a partial cross-sectional structure of a spray chamber according to the present invention;
FIG. 3 is a schematic structural view of a water-spraying high-pressure induced draft fan according to the present invention;
FIG. 4 is a schematic view of a partial cross-sectional structure of an absorption column in the present invention;
FIG. 5 is a schematic view of the air inlet duct of FIG. 4;
FIG. 6 is a schematic sectional view of a boiling reaction tank according to the present invention;
fig. 7 is a schematic view of the structure of the air inlet duct and the radioactive spray tube of fig. 6.
As shown in fig. 1, the tail gas purification treatment device of the present invention comprises a spray chamber, an absorption tower, a boiling reaction tank, a purification water storage tank and a high pressure induced draft fan, wherein the tail gas from the roasting kiln enters the absorption tower through the spray chamber and the high pressure induced draft fan, enters the boiling reaction tank through the high pressure induced draft fan after absorption, and isdirectly discharged into a chimney or is discharged into the chimney after being absorbed by an activated carbon absorption column; water is supplied to the spray chamber, the water spraying high-pressure induced draft fan and the reaction tank; the sewage discharged from the spray chamber and the absorption tower enters a purification water storage tank, is purified by the purification water storage tank and then is supplied to the absorption tower, and the water in the boiling reaction tank is discharged to the purification water storage tank after the sulfur acid reaches a certain concentration; when the water in the purifying water storage pool reaches a certain sulfuric acid concentration, the water is discharged to a recovery reaction pool, iron nitrate in the recovery reaction pool reacts with sulfuric acid to generate ferrous sulfate, the ferrous sulfate crystals are reused, and the water filtered after crystallization is discharged to the purifying water storage pool through a water return pipe for reuse.
As shown in figure 2, the spray chamber is a long and narrow rectangular pipeline, the front bottom surface of the spray chamber is provided with an air inlet 8, the tail end of the spray chamber is provided with an air outlet 5, the upper end of the spray chamber is provided with an inlet of a water supply pipe 4, a water source is supplied to the water supply pipe 4 through a water pump, an acid-resistant spray device in the middle of the top end in the pipeline is an acid-resistant spray pipe 2, the wall of the pipeline, facing to the upper part of the spray pipe 2, is provided with two rows of small holes 3, the included angle of the two rows of small holes 3 is less than 180 degrees, preferably 90 degrees, the sum of the areas of the small holes is less than 1/2 of the area of an outlet of the water pump, preferably 1/3 degrees, the left side and the right side of the pipeline are divided into a plurality of intercommunicated small spray chambers by an acid-resistant separation net 1 with staggered channels, an acid-resistant sewage outlet 6 is arranged at the bottom of each small, The separation net blocks, a large amount of dust in the tail gas is settled and discharged along with the sewage, and because the tail gas slowly moves forwards, water in the spray pipe is sprayed out and then is reflected by the top end, the front wall, the rear wall and the separation net to move downwards, a large amount of water is changed into water vapor at high temperature to surround sulfur dioxide SO in the tail gas2Nitrogen monoxide, oxygen, hydrogen fluoride and other gases are fully contacted and reacted to generate sulfurous acid, sulfuric acid, hydrofluoric acid and the like, and the sulfurous acid, the sulfuric acid, the hydrofluoric acid and the like are discharged into a purification water storage tank along with sewage to be purified and then supplied to an absorption tower for water.
As shown in figure 3, the water spraying high pressure draught fan is a device for pressing tail gas from a spray chamber to an absorption tower, and is characterized in that a water inlet pipe inlet 9 is arranged on the wall of an air inlet of a common high pressure draught fan, the tail part of a water inlet pipe 10 is a small spray pipe, namely, the tail end of the water inlet pipe is sealed, and a small hole 11 is arranged on the wall of the water inlet pipe. The water inlet pipe 10 and the air inlet wall are welded together in a sealing way. Thus, the tail gas can be cooled when passing through the water spraying high-pressure draught fan; increase the service life of the induced draft fan and absorb the tailSulfur dioxide SO in gas2Sulfur trioxide, SO3Wait for the gas, and settle the dust.
As shown in figure 4, the upper part of the absorption tower is provided with an inlet and an air outlet 12 of a water nozzle pipeline 13, the lower part of the absorptiontower is provided with a sewage discharge port 17 and an air inlet 16, the air inlet 16 is provided with an air inlet pipe 16', the air inlet 16 is higher than the sewage discharge port 17, a wind-blocking water-seepage net 18 is arranged in the absorption tower between the air inlet 16 and the sewage discharge port 17, the device for enabling the gas to flow in a turbulent mode is a supporting screen 20 and a layer of ceramic rings 19 arranged on the supporting screen in a scattered mode, the bowl-shaped water nozzle 14 is arranged on the device, the wall of the absorption tower is provided with an opening 15 capable of replacing the ceramic rings and the wind-blocking water-seepage net, and. The sewage in the high-pressure tail gas sent by the water spraying high-pressure draught fan is discharged from a sewage discharge outlet after passing through the wind-blocking water seepage net, the gas slowly and disorderly rises after passing through the supporting sieve and the ceramic ring, the water spray head sprays water downwards, and the water of the water spray head comes from purified water in the purified water storage tank and contains a large amount of sulfuric acid, and the sulfuric acid in the water promotes sulfur trioxide (SO)3Reaction with water to form sulfuric acid, SO that most of the sulfur trioxide SO3From this absorption, sulfur trioxide, SO, is produced due to the full contact of the exhaust gas with water3The absorption is also sufficient, and the sewage is discharged into a purification water storage tank through a sewage discharge outlet and is purified and then reused; as shown in figure 5, the outlet of the air inlet pipe 16' of the absorption tower is provided with an umbrella-shaped cap 21 supported by a tripod welded on the wall of the air inlet pipe, and the umbrella-shaped cap is used for preventing tail gas from entering, being reflected and diffused by the edge, and simultaneously preventing sewage from entering the air inlet pipe.
As shown in figures 6 and 7, the boiling reaction tank is a sealed water storage tank, the upper end of the boiling reaction tank is provided with an inlet of an air inlet pipe 22, an inlet of an air outlet pipe 24 and an inlet of an upper water pipe 25, the lower end of the boiling reaction tank is provided with an inlet of a water outlet pipe 28, the water outlet pipe 28 is provided with a valve, the water outlet pipe is communicated with a liquid level meter 29 between the valve and the inlet, a spray pipe 26 which is arranged in a double-layer plane radiation shape is arranged below the air inlet pipe 22, the spray pipe 26 extends into the liquid level of the boiling reaction tank and is 40 cm away from the bottom surface of the reaction tank, the end of the. The tail gas is pressed into the air inlet pipe 22 of the boiling reaction tank by a high-pressure induced draft fan and is sprayed out by the spray pipe 26, and the gas is sprayed out due to the small holes 27 on the spray pipe 26Slowly discharged to be fully contacted with water to absorb sulfur dioxide SO in the residual tail gas2Sulfur trioxide, SO3And the like. The tail gas passes through a boiling reaction tank, is adsorbed by an active carbon absorption column and is discharged into the atmosphere through a chimney, and the tail gas hardly contains sulfur dioxide SO2Carbon monoxide CO, nitric oxide NO, hydrogen fluoride HF and the like, and the Greenman value of the dust is close to zero.
Claims (14)
1. A tail gas purification treatment device is characterized by comprising a spray room, a purification water storage tank, an absorption tower, a boiling reaction tank and a high-pressure induced draft fan; the spray chamber is a high-narrow long pipeline, the front part of the spray chamber is provided with an air inlet, the tail end of the spray chamber is provided with an air outlet, the upper end of the spray chamber is provided with a water supply pipe inlet, the bottom of the spray chamber is provided with a sewage discharge outlet, an acid-resistant spray device is arranged in the middle of the top end in the pipeline, the spray device is connected with the water supply pipe, the water supply pipe is connected with a water source through a water pump, the left side and the right side of the spray chamber are provided with acid-resistant isolation blocking devices with gas channels at intervals, the sewage discharge outlet is connected with a purification; the upper part of the absorption tower is provided with a water nozzle pipeline inlet and an air outlet, the lower part of the absorption tower is provided with a sewage discharge port and an air inlet, the air inlet is higher than a sewage discharge port, the upper part and the lower part of the inside of the absorption tower are both provided with a device for enabling gas to flow in a turbulent way, the upper part of the device is provided with a water nozzle, the purification water storage tank is connected with the water nozzle through a water nozzle pipeline, the sewage discharge port is connected with the purification water storage tank through a water pipe, and the air outlet is connected with an air inlet; the boiling reaction tank is a sealed water storage tank, the upper end of the boiling reaction tank is provided with an air inlet pipe inlet, an air outlet pipe inlet and an upper water pipe inlet, the lower part of the boiling reaction tank is provided with a drain pipe inlet with a valve, a radial gas spray pipe is arranged below the air inlet pipe, the radial gas spray pipe extends into the position below the liquid level of the boiling reaction tank and is at a distance from the bottom surface of the reaction tank, the air outlet pipe is connected with a chimney through a pipeline, and the drain pipe is connected with a.
2.The tail gas purifying treatment apparatus as set forth in claim 1, further comprising a recovering reaction tank containing iron nitrate and a crystallizing device, the purifying water storage tank having a water discharge pipe connected to the recovering reaction tank, and the water filtered by the crystallizing device being discharged back to the purifying water storage tank through a water return pipe.
3. The tail gas purifying treatment device according to claim 1, characterized in that the high pressure draught fan between the spray chamber and the absorption tower is a water spraying high pressure draught fan, and a small water spraying device is added at the air inlet of the common high pressure draught fan.
4. The exhaust gas purifying treatment device according to claim 3, wherein the small water spraying device is a water inlet pipe (10) with a closed end and a small hole (11) on the wall.
5. The tail gas purification treatment device according to claim 1, wherein an activated carbon absorption column (23) is added at the air outlet of the boiling reaction tank, and the absorption column (23) is connected with a chimney.
6. The tail gas purification treatment device according to claim 1, wherein the spray device of the spray chamber is an acid-resistant spray pipe (2), two rows of small holes (3) are formed in the pipe wall of the spray pipe (2) facing upwards, the included angle between the two rows of small holes (3) is less than 180 degrees, and the sum of the areas of the small holes is less than 1/2 of the area of the outlet of the water pump.
7. The tail gas purification treatment device accordingto claim 6, wherein the included angle between the two rows of small holes (3) of the spray pipe (2) is 90 degrees, and the sum of the areas of the small holes (3) is 1/3 of the outlet area of the water pump.
8. The tail gas purification treatment device according to claim 1, wherein the isolation blocking device of the spray chamber is an acid-resistant isolation plate (1) with staggered channels and an acid-resistant isolation net (7) between the isolation plates (1).
9. The exhaust gas purifying treatment device according to claim 1, wherein the means for making the gas flow in a turbulent manner of the absorption tower is a support screen (20) and ceramic rings (19) arranged on the support screen in a scattered manner.
10. The tail gas purification treatment device according to claim 1, wherein the radioactive spray pipe of the boiling reaction tank is a double-layer plane radioactive spray pipe (26), the end of the spray pipe is closed, and the wall of the pipeline facing to the lower part is provided with an air outlet (27).
11. The tail gas purification treatment process completed by the tail gas purification treatment device according to claim 1, wherein (1) high-temperature tail gas generated by the roasting kiln enters the spray chamber from the gas inlet of the spray chamber, is blocked by each isolation blocking device provided with a gas passage and moves disorderly, and is sprayed downwards by the spray device, most of dust in the tail gas is blocked and falls off, most of water sprayed by the spray device is changed into water vapor, and the tail gas contains a large amount of oxygen O2The water vapor, sulfur dioxide, oxygen, nitric oxide, hydrogen fluoride (trace) and dust are fully contacted, the hydrogen fluoride is absorbed by the water to form hydrofluoric acid, and the sulfur dioxide and the water generate sulfurous acid Sulfur trioxide is formed from sulfur dioxide and oxygen The nitrogen monoxide and oxygen form nitrogen dioxide The nitrogen dioxide and sulfur dioxide generate sulfur trioxide and nitrogen monoxide Therefore, a small amount of nitric oxide can promote sulfur dioxide to generate sulfur trioxide, dust can promote sulfur dioxide to generate sulfur trioxide, and the sulfur trioxide is very easy to dissolve in water to generate sulfuric acid, so that a large amount of sulfur dioxide is changed into sulfurous acid and sulfuric acid, hydrogen fluoride is changed into hydrofluoric acid, the residual tail gas with reduced temperature is sent into the absorption tower by the high-pressure draught fan, and the settled acid-containing sewage is sent into the purification water storage tank by the sewage discharge pipe to be purified and then is supplied to the absorption tower for water; (2) the tail gas sent into the absorption tower flows from bottom to top, and the tail gas flows in a turbulent way through a device for making the gas flow in a turbulent way in the absorption tower and slowly risesAnd the water spray head in the absorption tower sprays water from top to bottom, the gas is fully contacted with the water, the dust is settled, and a large amount of sulfur trioxide (SO) is generated3When the gas is absorbed by the acid water containing sulfuric acid, the tail gas is absorbed by the absorption tower and then is introduced into the boiling reaction tank through the high-pressure draught fan, and the sewage enters the purification water storage tankfrom the sewage discharge port to be purified and then is reused by the absorption tower; (3) the gas sent into the boiling reaction tank is sprayed out by the radial gas spray pipe and fully contacts with water in the reaction tank to absorb the residual sulfur dioxide SO in the tail gas2Sulfur trioxide, SO3And (3) waiting for the gas, then discharging the gas into a chimney through an air outlet pipe of the boiling reaction tank, discharging the gas through a sewage discharge pipe when the water in the boiling reaction tank reaches a certain sulfuric acid concentration, and then changing the water through a water inlet pipe.
12. The tail gas purifying treatment process as set forth in claim 11, characterized in that when the sulfuric acid in the purifying water storage tank reaches a certain concentration, the sulfuric acid is discharged into the recovery reaction tank, the sulfuric acid reacts with iron nitrate to produce ferrous sulfate, the ferrous sulfate is concentrated and crystallized, and the filtered water is discharged back into the purifying water storage tank for use.
13. The tail gas purifying treatment process as claimed in claim 11, wherein the small water spraying device in the high-pressure water spraying induced draft fan can spray water to the tail gas to absorb sulfur dioxide SO in the process that the tail gas flows from the spraying chamber to the absorption tower2Sulfur trioxide, SO3Wait for the gas, and settle the dust.
14. The tail gas purifying treatment process as claimed in claim 11, wherein the tail gas from the boiling reaction tank is further absorbed by an activated carbon absorption column and then discharged to a chimney.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011167629A CN1164352C (en) | 2001-04-23 | 2001-04-23 | Device and process for cleaning tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011167629A CN1164352C (en) | 2001-04-23 | 2001-04-23 | Device and process for cleaning tail gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1365848A true CN1365848A (en) | 2002-08-28 |
| CN1164352C CN1164352C (en) | 2004-09-01 |
Family
ID=4662607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011167629A Expired - Fee Related CN1164352C (en) | 2001-04-23 | 2001-04-23 | Device and process for cleaning tail gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1164352C (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100534587C (en) * | 2006-10-25 | 2009-09-02 | 宝山钢铁股份有限公司 | Sintering smoke wet method sulphur removing and dust removing technology |
| CN100534589C (en) * | 2007-01-22 | 2009-09-02 | 宝山钢铁股份有限公司 | Gas outburst spinning dive desulfurization dust cleaning apparatus |
| CN102908865A (en) * | 2011-08-06 | 2013-02-06 | 新疆永昌新材料科技股份有限公司 | Unsaturated polyester resin-tail gas purification control system |
| CN103331092A (en) * | 2013-06-07 | 2013-10-02 | 北方民族大学 | Hydrogen fluoride gas absorption experimental device |
| CN104799229A (en) * | 2015-03-31 | 2015-07-29 | 刘永强 | Novel pickle primordial bacteria fermentation gas trapping and liquid sterilization utilization integrated system |
| CN105363330A (en) * | 2014-08-31 | 2016-03-02 | 天津渤大硫酸工业有限公司 | Sulfuric acid tail gas desulphurization device |
| CN105536474A (en) * | 2015-12-24 | 2016-05-04 | 浙江埃森化学有限公司 | Device for removing hydrogen fluoride from tail gas by virtue of dynamic waves and implementation method for device |
| CN106178906A (en) * | 2016-09-23 | 2016-12-07 | 杭州东日节能技术有限公司 | Sulfur-containing tail gas dedusting and chlorine fluorine removing process device |
| CN107297130A (en) * | 2016-03-30 | 2017-10-27 | 韩志先 | A kind of gas cleaning plant |
| CN108211792A (en) * | 2018-03-15 | 2018-06-29 | 潘三毛 | A kind of high sulfur dioxide concentration gas conversion system |
| CN110043807A (en) * | 2019-05-23 | 2019-07-23 | 中国核电工程有限公司 | A kind of UF6Pipe leakage emergent treatment system |
| CN112023667A (en) * | 2020-08-31 | 2020-12-04 | 江苏康祥实业集团有限公司 | Sodium silicate tail gas treatment process and treatment equipment thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101876511A (en) * | 2009-04-30 | 2010-11-03 | 朱田龙 | Dust collecting and gas purifying device |
-
2001
- 2001-04-23 CN CNB011167629A patent/CN1164352C/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100534587C (en) * | 2006-10-25 | 2009-09-02 | 宝山钢铁股份有限公司 | Sintering smoke wet method sulphur removing and dust removing technology |
| CN100534589C (en) * | 2007-01-22 | 2009-09-02 | 宝山钢铁股份有限公司 | Gas outburst spinning dive desulfurization dust cleaning apparatus |
| CN102908865A (en) * | 2011-08-06 | 2013-02-06 | 新疆永昌新材料科技股份有限公司 | Unsaturated polyester resin-tail gas purification control system |
| CN103331092A (en) * | 2013-06-07 | 2013-10-02 | 北方民族大学 | Hydrogen fluoride gas absorption experimental device |
| CN105363330A (en) * | 2014-08-31 | 2016-03-02 | 天津渤大硫酸工业有限公司 | Sulfuric acid tail gas desulphurization device |
| CN104799229A (en) * | 2015-03-31 | 2015-07-29 | 刘永强 | Novel pickle primordial bacteria fermentation gas trapping and liquid sterilization utilization integrated system |
| CN105536474A (en) * | 2015-12-24 | 2016-05-04 | 浙江埃森化学有限公司 | Device for removing hydrogen fluoride from tail gas by virtue of dynamic waves and implementation method for device |
| CN105536474B (en) * | 2015-12-24 | 2018-03-27 | 浙江埃森化学有限公司 | A kind of device and its implementation that hydrogen fluoride in tail gas is removed using dynamic wave |
| CN107297130A (en) * | 2016-03-30 | 2017-10-27 | 韩志先 | A kind of gas cleaning plant |
| CN106178906A (en) * | 2016-09-23 | 2016-12-07 | 杭州东日节能技术有限公司 | Sulfur-containing tail gas dedusting and chlorine fluorine removing process device |
| CN108211792A (en) * | 2018-03-15 | 2018-06-29 | 潘三毛 | A kind of high sulfur dioxide concentration gas conversion system |
| CN110043807A (en) * | 2019-05-23 | 2019-07-23 | 中国核电工程有限公司 | A kind of UF6Pipe leakage emergent treatment system |
| CN112023667A (en) * | 2020-08-31 | 2020-12-04 | 江苏康祥实业集团有限公司 | Sodium silicate tail gas treatment process and treatment equipment thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1164352C (en) | 2004-09-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1164352C (en) | Device and process for cleaning tail gas | |
| CN1597059A (en) | Twin-tower circulation washing and suction smoke and desulfurization method for waste water of power plant boiler | |
| CN217773770U (en) | Energy-efficient tail gas washing tower | |
| CN204637975U (en) | Flue gas desulfurization enhancing device | |
| CN104607021A (en) | Double-circulating flue gas dust removal desulfurization tower and flue gas desulfurization method | |
| CN104607007A (en) | Flue gas dust removal desulfurization reactor and flue gas desulfurization method | |
| US3792571A (en) | Method and apparatus for purifying waste gas | |
| CN104607022A (en) | H-shaped flue gas dust removal desulfurization reactor and flue gas desulfurization method | |
| CN104607009A (en) | Flue gas dust removal desulfurization tower and flue gas desulfurization method | |
| CN108854499A (en) | A kind of furfural dregs boiler smoke magnesia FGD purification device | |
| CN201244439Y (en) | Glass melting furnace flue gas desulfurization and dedusting integrated device | |
| CN104607010A (en) | Flue gas dust removal desulfurization tower and flue gas desulfurization method | |
| CN217526889U (en) | Double-layer flue gas cooperative purification tower | |
| CN104607020B (en) | Flue-gas dust-removing and desulfurization reactor and fume desulphurization method | |
| CN105289250A (en) | Bubbler | |
| CN2905195Y (en) | Pneumatic wave desulfurizing, denitrifying and mercury-removing integrated apparatus | |
| CN213132603U (en) | Single-tower double-circulation desulfurizing tower | |
| CN211562318U (en) | Rotary spraying dust removal device | |
| CN211487169U (en) | Sodium-alkali method desulphurization device | |
| CN209378749U (en) | Flue gas takes off white processing unit | |
| CN104607008A (en) | Double-circulating flue gas dust removal desulfurization tower and flue gas desulfurization method | |
| CN203355567U (en) | Inclined hole board absorption tower | |
| RU159648U1 (en) | MULTI-BLOCK DEVICE FOR CLEANING EXHAUST GASES OF A SHIP ENGINE | |
| RU114871U1 (en) | SCRUBER FOR CLEANING SMOKE GASES WITH RECYCLING LIQUID ABSORBENT | |
| CN213699438U (en) | Flue gas purifying device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |