CN201799211U - Double-circulation boiler flue gas desulfurization and dedusting device - Google Patents
Double-circulation boiler flue gas desulfurization and dedusting device Download PDFInfo
- Publication number
- CN201799211U CN201799211U CN2010202749888U CN201020274988U CN201799211U CN 201799211 U CN201799211 U CN 201799211U CN 2010202749888 U CN2010202749888 U CN 2010202749888U CN 201020274988 U CN201020274988 U CN 201020274988U CN 201799211 U CN201799211 U CN 201799211U
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- China
- Prior art keywords
- case
- dust
- desulfurization
- liquid
- desulfurizing
- Prior art date
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- Expired - Fee Related
Links
- 230000003009 desulfurizing Effects 0.000 title claims abstract description 75
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 38
- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 239000003546 flue gas Substances 0.000 title claims abstract description 26
- 239000003513 alkali Substances 0.000 claims abstract description 47
- 239000000428 dust Substances 0.000 claims abstract description 42
- 239000007788 liquid Substances 0.000 claims abstract description 41
- 230000004087 circulation Effects 0.000 claims abstract description 19
- 238000004062 sedimentation Methods 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 238000000926 separation method Methods 0.000 claims abstract description 3
- 238000004140 cleaning Methods 0.000 claims description 21
- 238000001914 filtration Methods 0.000 claims description 17
- 238000007790 scraping Methods 0.000 claims description 9
- 239000002893 slag Substances 0.000 claims description 9
- 239000003463 adsorbent Substances 0.000 abstract description 2
- 238000000746 purification Methods 0.000 abstract description 2
- 239000007921 spray Substances 0.000 abstract description 2
- 239000010797 grey water Substances 0.000 abstract 1
- 230000001105 regulatory Effects 0.000 abstract 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 11
- 235000011121 sodium hydroxide Nutrition 0.000 description 11
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 9
- RAHZWNYVWXNFOC-UHFFFAOYSA-N sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 8
- 239000003921 oil Substances 0.000 description 4
- 229910052813 nitrogen oxide Inorganic materials 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000003500 flue dust Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 206010022000 Influenza Diseases 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010742 number 1 fuel oil Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Abstract
The utility model relates to a double-circulation boiler flue gas desulfurization and dedusting device taking liquid as a separation adsorbent. The device is provided with a draught fan, an inlet baffle door, an electromagnetic valve, an alkali adding bucket, an alkali circulation tank, a stirrer, a shutoff valve, a pipeline pump, a check valve, a solution mixing pump, a liquid level switch, a filter tank, a filter screen, a sediment scraper, a regulating valve, a desulfurization deduster, a sedimentation tank and the like. Compared with the traditional boiler desulfurization and dedusting device, the utility model adopts multistage spray desulfurization, liquid adsorption and multistage Venturi wet-type purification dedusting in allusion to oil burning boilers, and the desulfurization deduster is formed by superposing a vapor-liquid box, a desulfurization box, a dedusting box and a dust fall box on a body. The emission of the device meets the environmental protection standard, and moreover, clear water and alkali liquor are recycled to realize the double circulation of grey water and the alkali liquor. The whole dedusting system has low operating cost and eliminates the secondary pollution.
Description
Technical field
The utility model relates to a kind of desulfation dust-extraction device, especially relates to a kind of flue-gas desulfurizing and dust-removing apparatus of double-circulation boiler that adopts liquid as separating adsorbent.
Background technology
Sulfur dioxide in the waste gas that fire coal/heavy oil boiler produced, nitrogen oxide and dust etc. cause serious pollution to environment, it is one of emphasis of environmental improvement always, also be that sulfur dioxide in the difficult problem, particularly waste gas in the environmental improvement and nitrogen oxide are the major pollutants that are difficult to control.The many medium and small enterprise that China starts the nineties in 20th century, for example textile printing and dyeing enterprises etc. uses oil burning boiler aborning in a large number.The flue dust that oil burning boiler produces in process of production, sulfur dioxide and nitrogen oxide cause environmental pollution to the surrounding area, according to environmental requirement, must administer the equipment flue gas that particularly oil burning boiler produced that pollutes.
Summary of the invention
The purpose of this utility model is to provide a kind of desulfurization and dedusting effect flue-gas desulfurizing and dust-removing apparatus of double-circulation boiler preferably.
The utility model is provided with smokestack, air-introduced machine, inlet plate washer door, magnetic valve, adds alkali bucket, circulation alkali pond, agitator, shutoff valve, tubing pump, check-valves, solution mixing pump, liquid-level switch, filtering ponds, screen pack, Slag Scraping Device, control valve, desulfurizing dust-collector, boiler, sedimentation basin and transfer car(buggy).Desulfurizing dust-collector advance the external boiler outlet flue of mouth, the flue gas that enters desulfurizing dust-collector advances mouth from separation of flow deduster and enters the dust cleaning case of being located in the desulfurizing dust-collector (surge tank), the outlet flue of desulfurizing dust-collector and air-introduced machine inlet join, the air-introduced machine outlet is joined with the chimney inlet, flue gas is discharged from the chimney top, is provided with the inlet baffle door between desulfurizing dust-collector outlet flue and air-introduced machine inlet.The liquid outlet in circulation alkali pond is through the 1st shutoff valve, solution transfer pump, electronic dish valve, check-valves, the solution mixing pump joins with the desulfurization case alkali liquor inlet of being located in the desulfurizing dust-collector, the 2nd shutoff valve is connected between check-valves and the filtering ponds, electronic dish valve is connected between check-valves and the solution transfer pump, magnetic valve of bypass between desulfurization case alkali liquor inlet and the filtering ponds, circulation alkali pond alkali liquor inlet and the dust cleaning case of being located at desulfurizing dust-collector, the desulfurization case joins, establish a magnetic valve between desulfurization case alkali liquor inlet and the dust cleaning case alkali liquor inlet, circulation alkali pond is provided with agitator, add alkali bucket and magnetic valve.Vapour-liquid case water supplement port connects running water pipe through control valve, magnetic valve.Vapour-liquid case, desulfurization case, dust cleaning case and dust fall case are stacked and be fixedly arranged on the body, and body is fixedly arranged on the pedestal.Be provided with at least 1 in the dust cleaning case and go up Venturi and 1 following Venturi, be connected to the desulfurization case on the last Venturi, be connected to the dust fall case down; The last termination dust cleaning case of following Venturi, following termination dust fall case.Be equipped with shower in vapour-liquid case, desulfurization case, dust cleaning case and the dust fall case.Vapour-liquid case, desulfurization case, dust cleaning case and dust fall case are equipped with working hole.Establish liquid-level switch in the filtering ponds.Sedimentation basin is located at the ash bin below, and Slag Scraping Device is located in the sedimentation basin.
Between filtering ponds and sedimentation basin, establish filter.
Be provided with Venturi tube between vapour-liquid case in being located at desulfurizing dust-collector and the desulfurization case, Venturi tube is connected with the vapour-liquid case, and the flue gas after the desulfurization enters the vapour-liquid case through Venturi tube, establishes shower in the vapour-liquid case.Contain buck and drip, realize that alkali lye recycles through alkali lye refluxing opening inflow circulation alkali pond.
Compare with existing boiler desulfurization dust arrester, the utility model adopts the desulfurization of multistage spray medicine, liquid adsorption at oil burning boiler, the dedusting of multistage venturi wet purification, and not only its discharging reaches environmental protection standard, and clear water and alkali lye all is recycled, and realizes buck, the two circulations of alkali lye.The whole dust-removal system operating cost is low, and has eliminated secondary pollution.
Description of drawings
Fig. 1 be the utility model embodiment structure and with the annexation schematic diagram of corollary equipments such as boiler.
Fig. 2 is the structural representation of the utility model embodiment desulfurizing dust-collector.
Fig. 3 is the K--K view of Fig. 2.
The specific embodiment
Referring to Fig. 1～3, the utility model is provided with desulfurizing dust-collector 22, filtering ponds 17, air-introduced machine 2, circulation alkali pond 6, agitator 7, solution transfer pump 9, magnetic valve (4,14,15 and 20), control valve the 21, the 1st shutoff valve the 8, the 2nd shutoff valve 12, check-valves 11, electronic dish valve 10, solution mixing pump 13, liquid-level switch 16, sedimentation basin 24, Slag Scraping Device 19 and transfer car(buggy) 25.Desulfurizing dust-collector 22 advance external boiler 23 outlet flues of mouth, the flue gas that enters desulfurizing dust-collector 22 enters the dust cleaning case of being located in the desulfurizing dust-collector (surge tank) 2215 from advancing mouth 223, the outlet flue of desulfurizing dust-collector 22 and air-introduced machine 2 inlets join, air-introduced machine 2 outlets are joined with chimney 1 inlet, and flue gas is discharged from chimney 1 top.Be provided with inlet baffle door 3 between the outlet flue 228 of desulfurizing dust-collector 22 and air-introduced machine 2 inlets.The liquid outlet in circulation alkali pond 6 joins with desulfurization case 2212 alkali liquor inlets of being located in the desulfurizing dust-collector 22 2214 through the 1st shutoff valve 8, solution transfer pump 9, electronic dish valve 10, check-valves 11, solution mixing pump 13.The 2nd shutoff valve 12 is connected between check-valves 11 and the filtering ponds 16, electronic dish valve 10 is connected between check-valves 11 and the solution transfer pump 9, magnetic valve 14 of bypass between the alkali liquor inlet 2214 of desulfurization case 2212 and the filtering ponds 17, the alkali liquor inlet in circulation alkali pond 6 joins with the alkali lye refluxing opening 2213 of being located at the vapour-liquid case 229 on desulfurizing dust-collector 22 tops.Circulation alkali pond 6 is provided with agitator 7, adds alkali bucket 5 and magnetic valve 4.The water supplement port 2211 of the vapour-liquid case 229 of desulfurizing dust-collector 22 is connected to running water pipe through control valve 21, magnetic valve 20.It is stacked and be fixedly arranged on the body 225 to be located at vapour-liquid case 229 in the desulfurizing dust-collector 22, desulfurization case 2212, dust cleaning case 2215 and dust fall case 2219, and body 225 is fixedly arranged on the pedestal.Be provided with one group of smoke-intake pipe 221 and one group of pipe 222 in the dust cleaning case 2215, smoke-intake pipe 221 and pipe 222 are Venturi tube, are provided with shower 2210 in vapour-liquid case 229, desulfurization case 2212, dust cleaning case 2215 and the dust fall case 2219.Vapour-liquid case 229, desulfurization case 2212, dust cleaning case 2215 and dust fall case 2219 are established working hole 226,224,2216 and 2218 respectively.Sedimentation basin 24 is located at dust fall case 2219 belows, and Slag Scraping Device 19 is located in the sedimentation basin 24.Transfer car(buggy) 25 is located at the deslagging end of Slag Scraping Device 19.Liquid-level switch 16 is located on the filtering ponds 17.Between filtering ponds 17 and sedimentation basin 24, establish filter 18.
During work, flue gas enters dust cleaning case 2215 from advancing mouth 223, under the effect of air-introduced machine 2, flue gas produces dirt along pipe 221 inwalls and falls, most grit enters sedimentation basin 24, the flue gas of following grit to enter sedimentation basin then enters desulfurization case 2212 by pipe 222, and the desulfurizing agent that shower 2210 is sprayed mixes with flue gas, and sulfur in smoke is absorbed removing.Grit water droplet after the desulfurization enters dust fall case 2219 along pipe 222 and falls into sedimentation basin 24.
Lime-ash in the sedimentation basin 24 is delivered to transfer car(buggy) 25 by Slag Scraping Device 19, and alkali lye filters through filter plate 18 and enters filtering ponds 17, realizes that alkali lye recycles.Establish liquid-level switch 16 in the filtering ponds 17, be used to control magnetic valve 14,15 and 20, guarantee the alkali lye circulation in desulfurization case 2212, dust cleaning case 2215 and the dust fall case 2219.Be provided with agitator 7 in the circulation alkali pond 6, add alkali bucket 5 and magnetic valve 4, according to the pH value control benefit automatically alkali number of backflow alkali lye.
Flue gas after the desulfurization in being located at desulfurizing dust-collector 22 vapour-liquid case 229 and the Venturi tube 227 between the desulfurization case 2212 enter vapour-liquid case 229, in vapour-liquid case 229, establish shower 2210, shower connects water source from the beginning by water supplement port 2211, the flue gas that obtains further to purify in vapour-liquid case 229 is discharged through outlet flue 228, contain buck and drip, realize that alkali lye recycles through alkali lye refluxing opening 2213 inflow circulation alkali ponds 6.
After tested, the utility model embodiment can reach following major parameter.
The flue gas technical parameter:
1. smoke components: flue dust, SO
2
2. flue-gas temperature: 130～250 ℃;
3. dust concentration: 1200～1500mg/Nm
3
Handle pollutant levels in the flue gas of back (by GB GB13271-2001):
1. smoke dust discharge concentration≤200～150mg/m
3
2. lingemann blackness: 1 grade;
3. sulfur dioxide emissioning concentration≤1200～900mg/m
3
Claims (3)
1. flue-gas desulfurizing and dust-removing apparatus of double-circulation boiler is characterized in that being provided with desulfurizing dust-collector, Slag Scraping Device, filtering ponds, transfer car(buggy), air-introduced machine, circulation alkali pond, agitator, solution transfer pump, magnetic valve, control valve, the 1st shutoff valve, the 2nd shutoff valve, check-valves, solution mixing pump, electronic dish valve, liquid-level switch, sedimentation basin, Slag Scraping Device and body; Desulfurizing dust-collector advance the external boiler outlet flue of mouth, the flue gas that enters desulfurizing dust-collector advances mouth from separation of flow deduster and enters the dust cleaning case of being located in the desulfurizing dust-collector, the outlet flue of desulfurizing dust-collector and air-introduced machine inlet join, the air-introduced machine outlet is joined with the chimney inlet, flue gas is discharged from the chimney top, is provided with the inlet baffle door between desulfurizing dust-collector outlet flue and air-introduced machine inlet; The liquid outlet in circulation alkali pond joins through the 1st shutoff valve, solution transfer pump, electronic dish valve, check-valves, solution mixing pump and the desulfurization case alkali liquor inlet be located in the desulfurizing dust-collector, the 2nd shutoff valve is connected between check-valves and the filtering ponds, electronic dish valve is connected between check-valves and the solution transfer pump, bypass one magnetic valve between desulfurization case alkali liquor inlet and the filtering ponds, circulation alkali pond alkali liquor inlet joins with the vapour-liquid case of being located at desulfurizing dust-collector top, and circulation alkali pond is provided with agitator, adds alkali bucket and magnetic valve; Vapour-liquid case water supplement port connects running water pipe through control valve, magnetic valve; Vapour-liquid case, desulfurization case, dust cleaning case, the dust fall case is stacked and be fixedly arranged on the body, and body is fixedly arranged on the pedestal; Be provided with at least 1 in the dust cleaning case and go up Venturi and 1 following Venturi, be connected to the desulfurization case on the last Venturi, be connected to the dust fall case, the last termination dust cleaning case of following Venturi, following termination dust fall case down; Be equipped with shower in vapour-liquid case, desulfurization case, dust cleaning case and the dust fall case; Vapour-liquid case, desulfurization case, dust cleaning case and dust fall case are equipped with working hole; Establish liquid-level switch in the filtering ponds, sedimentation basin is located at the ash bin below, and Slag Scraping Device is located in the sedimentation basin.
2. flue-gas desulfurizing and dust-removing apparatus of double-circulation boiler as claimed in claim 1 is characterized in that establishing filter between filtering ponds and sedimentation basin.
3. flue-gas desulfurizing and dust-removing apparatus of double-circulation boiler as claimed in claim 1, it is characterized in that being provided with Venturi tube between vapour-liquid case in being located at desulfurizing dust-collector and the desulfurization case, Venturi tube is connected with the vapour-liquid case, and the flue gas after the desulfurization enters the vapour-liquid case through Venturi tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202749888U CN201799211U (en) | 2010-07-28 | 2010-07-28 | Double-circulation boiler flue gas desulfurization and dedusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202749888U CN201799211U (en) | 2010-07-28 | 2010-07-28 | Double-circulation boiler flue gas desulfurization and dedusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201799211U true CN201799211U (en) | 2011-04-20 |
Family
ID=43868728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202749888U Expired - Fee Related CN201799211U (en) | 2010-07-28 | 2010-07-28 | Double-circulation boiler flue gas desulfurization and dedusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201799211U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102335551A (en) * | 2010-07-28 | 2012-02-01 | 张步芳 | Device for desulphurization and dedusting of dual-circulation boiler flue gas |
| CN102380304A (en) * | 2011-09-12 | 2012-03-21 | 张步芳 | Desulfuration and dust removal device of industrial coal furnace |
| CN102389696A (en) * | 2011-09-12 | 2012-03-28 | 张步芳 | Fire coal smoke cyclone dedusting desulfurizer |
-
2010
- 2010-07-28 CN CN2010202749888U patent/CN201799211U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102335551A (en) * | 2010-07-28 | 2012-02-01 | 张步芳 | Device for desulphurization and dedusting of dual-circulation boiler flue gas |
| CN102380304A (en) * | 2011-09-12 | 2012-03-21 | 张步芳 | Desulfuration and dust removal device of industrial coal furnace |
| CN102389696A (en) * | 2011-09-12 | 2012-03-28 | 张步芳 | Fire coal smoke cyclone dedusting desulfurizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20110728 |