CN2377452Y - Desulfurizing soot-eliminating device specially adapted for coal-fired boiler - Google Patents
Desulfurizing soot-eliminating device specially adapted for coal-fired boiler Download PDFInfo
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- CN2377452Y CN2377452Y CN 99216237 CN99216237U CN2377452Y CN 2377452 Y CN2377452 Y CN 2377452Y CN 99216237 CN99216237 CN 99216237 CN 99216237 U CN99216237 U CN 99216237U CN 2377452 Y CN2377452 Y CN 2377452Y
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Abstract
The utility model relates to a special desulfurizing soot-eliminating device adapted for a coal-fired boiler, composed of a vertical barrel body, a heat-insulating layer and an outer coating layer of the vertical barrel body, an air inlet device, a primary and a secondary spraying devices arranged in the vertical barrel body, a vertical tube-shaped shutter type drag separator, an expansion type separator and a connecting bend connected with a soot outlet of the vertical barrel body and the vertical tube-shaped shutter type drag separator. The utility model has simple structure, the soot-eliminating efficiency of the utility model is more than 94%, the desulfurizing efficiency of the utility model is more than 60%, the air leakage coefficient of the utility model is less than 1%, and the drag of the utility model is less than 1100Pa. After the special desulfurizing soot-eliminating device adapted for coal-fired boiler is used, flue gas discharge can reach the II area standard specified in the atmospheric pollutant discharging standard for boilers of GB13271, and the blackness of flue gas can reach below one level of the Ringelman blackness.
Description
The utility model relates to the special-purpose desulfurizing dust-collector of a kind of dust arrester, particularly a kind of coal-burning boiler.
Coal-burning boiler is China's main thermal powerplant at present, and it uses wide, and Coal-fired capacity is big, according to incompletely statistics, the year coal consumption of China's coal-burning boiler is about 3.5 hundred million tons, be the coal-fired rich and influential family who generally acknowledges in the world, and coal-burning boiler will produce flue dust, SO in use inevitably
2, SO
3, harmful dust and gas such as NOx, have data to point out, China every year, only industrial production just had 800～1,000 ten thousand tons more than, SO with the flue dust of boiler emission
2And SO
32,000 ten thousand tons more than is the major pollutants of vast cities and towns low latitude atmosphere pollution, and its flue dust is given the influence that our daily life brings and given the infringement that our person caused is very intuitively, and the pernicious gas that contains in the discharging flue gas, as SO
2, SO
3, NOx but cannot see, can not touch, but very big to the harm of human body, out in the cold easily toward contact, existing most coal-burning boiler dust arresters promptly are like this.
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, and coal-burning boiler is a kind of can dedusting can slough SO in the flue gas and offer
2, SO
3Deng the desulfation dust-extraction device of pernicious gas, i.e. coal-burning boiler special use desulfurizing dust-collector.
The purpose of this utility model can realize by such technical scheme: thisly can dedusting can slough SO in the flue gas again
2, SO
3Desulfation dust-extraction device Deng pernicious gas, it is the special-purpose desulfurizing dust-collector of coal-burning boiler, it comprises the heat-insulation layer and the surrounding layer of vertical cylindrical shell and outer setting thereof, three outlet flues are the inlet duct that level rotary flow puff prot shape is provided with in the vertical cylindrical shell, the secondary annular spray equipment that its top outlet flue of ring is provided with in one-level spray equipment that inlet duct outlet flue top is provided with in the vertical cylindrical shell and the vertical cylindrical shell, expanding type separator that standpipe shape louvre type resistance separator and lower end thereof connect and the connecting bend that is used to be connected vertical cylindrical shell top outlet flue and standpipe shape louvre type resistance separator upper end air inlet, the lower end of vertical cylindrical shell is taper, and dust-exhausting port is set.Such deduster, spray use and contain Ca (OH)
2Alkaline water, be installed in the outlet flue of coal-burning boiler, the dust-laden of boiler emission and SO
2And SO
3The flue gas of pernicious gas is promptly entered in the vertical cylindrical shell of deduster by inlet duct, and in vertical cylindrical shell, form around vertical cylindrical shell vertical axis rotation rising flue gas stream upwards, because the effect of rotation, contained flue dust is got rid of to vertical cylinder inboard wall under action of centrifugal force in the flue gas stream, the continuous moisture film that forms at vertical cylinder inboard wall by one-level spray equipment and the ejection of secondary spray equipment is flushed in the sedimentation basin, and simultaneously owing to fully contact contained SO in the flue gas with the alkaline water of one-level spray equipment and the ejection of secondary spray equipment
2And SO
3Pernicious gas is absorbed, neutralizes, flue gas after this dedusting, desulfurization, the standpipe shape louvre type resistance separator through being provided with and the further dedusting and the dehydration of expanding type separator again, at last by exhanst gas outlet, promptly expanding type separator outlet flue (through boiler induced-draft fan) enters atmosphere.
The one-level spray equipment that inlet duct outlet flue top is provided with in the above-mentioned desulfurizing dust-collector, its vertical cylindrical shell can be the annular spray equipment that its inlet duct air inlet pipe standpipe section of ring is provided with.
The special-purpose desulfurizing dust-collector of this coal-burning boiler provided by the utility model, simple in structure, efficiency of dust collection＞94%, desulfuration efficiency＞60%, air leakage coefficient＜1%, resistance＜1100Pa uses the coal-burning boiler of this desulfurizing dust-collector, fume emission can reach the II class regional standard of stipulating in GB13271 " boiler Air Pollutant Emission " standard, and blackness of exhaustion can reach lingemann blackness below 1 grade.
Below in conjunction with embodiment and accompanying drawing thereof the utility model is described in further detail:
The special-purpose desulfurizing dust-collector internal structure of this coal-burning boiler schematic diagram that Fig. 1 is provided for the utility model embodiment.
With reference to accompanying drawing, the special-purpose desulfurizing dust-collector of this coal-burning boiler that the utility model embodiment is provided, it comprises the heat-insulation layer 9 and the surrounding layer 8 of vertical cylindrical shell 10 and outer setting thereof, three outlet flues 11 are the inlet duct 1 that level rotary flow puff prot shape is provided with in the vertical cylindrical shell 10, the secondary annular spray equipment 3 that its top outlet flue of ring is provided with in one-level annular spray equipment 2 that inlet duct outlet flue top ring inlet duct air inlet pipe standpipe section is provided with in the vertical cylindrical shell 10 and the vertical cylindrical shell 10, expanding type separator 6 and the connecting bend 4 that is used to be connected vertical cylindrical shell 10 top outlet flues and standpipe shape louvre type resistance separator 5 upper end air inlets that standpipe shape louvre type resistance separator 5 and lower end thereof connect, the lower end of vertical cylindrical shell 10 is taper, and dust-exhausting port is set.Among the figure, the 7-sedimentation basin.
Claims (2)
1, the special-purpose desulfurizing dust-collector of a kind of coal-burning boiler, has spray equipment, connecting bend (4), standpipe shape louvre type resistance separator (5) and expanding type separator (6), it is characterized in that: it is by the heat-insulation layer (9) of vertical cylindrical shell (10) and outer setting thereof and surrounding layer (8), three outlet flues (11) are the inlet duct (1) that level rotary flow puff prot shape is provided with in the vertical cylindrical shell (10), the secondary annular spray equipment (3) that its top outlet flue of ring is provided with in one-level spray equipment (2) that the interior inlet duct outlet flue of vertical cylindrical shell (10) top is provided with and the vertical cylindrical shell (10), the expanding type separator (6) that standpipe shape louvre type resistance separator (5) and lower end thereof connect and being used to is connected connecting bend (4) formation of air inlet on vertical cylindrical shell (10) top outlet flue and the standpipe shape louvre type resistance separator (5), the lower end of vertical cylindrical shell (10) is taper, and dust-exhausting port is set.
2, the special-purpose desulfurizing dust-collector of coal-burning boiler according to claim 1 is characterized in that: the one-level spray equipment that the interior inlet duct outlet flue of its vertical cylindrical shell (10) top is provided with is the annular spray equipment that ring its inlet duct (1) air inlet pipe standpipe section is provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99216237 CN2377452Y (en) | 1999-07-02 | 1999-07-02 | Desulfurizing soot-eliminating device specially adapted for coal-fired boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99216237 CN2377452Y (en) | 1999-07-02 | 1999-07-02 | Desulfurizing soot-eliminating device specially adapted for coal-fired boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2377452Y true CN2377452Y (en) | 2000-05-10 |
Family
ID=34007947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99216237 Expired - Fee Related CN2377452Y (en) | 1999-07-02 | 1999-07-02 | Desulfurizing soot-eliminating device specially adapted for coal-fired boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2377452Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104399336A (en) * | 2014-11-25 | 2015-03-11 | 广西农垦糖业集团红河制糖有限公司 | Boiler dust collector and dust collection method |
-
1999
- 1999-07-02 CN CN 99216237 patent/CN2377452Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104399336A (en) * | 2014-11-25 | 2015-03-11 | 广西农垦糖业集团红河制糖有限公司 | Boiler dust collector and dust collection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |