CN102698528A - Dust remover of coal-fired boiler - Google Patents
Dust remover of coal-fired boiler Download PDFInfo
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- CN102698528A CN102698528A CN2012101658762A CN201210165876A CN102698528A CN 102698528 A CN102698528 A CN 102698528A CN 2012101658762 A CN2012101658762 A CN 2012101658762A CN 201210165876 A CN201210165876 A CN 201210165876A CN 102698528 A CN102698528 A CN 102698528A
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Abstract
The invention provides a dust remover of a coal-fired boiler. The existing dust removers of coal-fired boilers have the disadvantages of small dust removing strength, large occupied area, complicated structure, high manufacturing cost and relatively low filtration air speed. The dust remover provided by the invention comprises a dust-gas chamber (2) arranged on a steel rack (1); one end of the dust-gas chamber is connected with an intake smoke box (3) while the other end of the dust-gas chamber is connected with an exhaust smoke box (4); the upper part of the dust-gas chamber is connected with an air purifying chamber (5), while the lower part of the dust-gas chamber is connected with a flue-dust retainer (6); a filter head plate (7) is connected on a housing of the dust-gas chamber; the filter head plate (7) is connected with a filter bag device (8); an inlet smoke flue (9) and an outlet smoke flue (10) of the intake smoke box are respectively connected with a bypass smoke flue (11); the air purifying chamber is connected with a spraying and blowing system (12) which is connected with an air supply system (13); and the inlet smoke flue is connected with a spraying cooling device (14) and a dust pre-coating device (15). The dust remover provided by the invention is used as the supporting facilities of coal-fired boilers.
Description
Technical field
The present invention relates to a kind of auxiliary facility of boiler, be specifically related to a kind of coal-burning boiler deduster.
Background technology
Sack cleaner and the vibration blowback that the present both at home and abroad sack cleaner that uses of coal-burning boiler smoke and dust treatment, purge mode mainly contain mechanical oscillation deashing sack cleaner and chamber-dividing counter-blowing class deashing is also with the sack cleaner of deashing.Mechanical oscillation deashing sack cleaner utilizes the mechanical device rapping or shakes the framework of suspention filter bag, makes filter bag produce vibration and the dust stratification that falls clearly.This is the old and the simplest a kind of mode, once in industry, extensively adopts.The vibration distribution of mechanical vibrator is inhomogeneous, and the filtration velocity of requirement is low.Vibration wave is propagated from top to bottom, and filter bag upper and lower surfaces deashing is inhomogeneous, causes the excessive deashing in top, and the bottom deashing is not enough.It is very fast that filter bag is damaged by violent mechanical force often.The replacing and the maintenance workload of filter bag are bigger.But because some mechanical vibrator mode is simple, investment is low, thereby some Chang He ﹝ Xiao Xing ﹞ of Zai are still adopting.2. the sack cleaner of chamber-dividing counter-blowing class deashing and vibration blowback and also be contrary air-flow deashing with the sack cleaner reverse gas cleaning of deashing, it be the outdoor or circulating air of employing to pass through filter bag in the opposite direction of dust-contained airflow, the dirt piece on it is come off.The air-flow of reverse gas cleaning on whole filter bag distributes more even, but deashing intensity is little, and floor space is big, complex structure, cost is high, filtration velocity is unsuitable excessive.
Pulse bag type dust collector is used comparatively general, and mostly its shape is: flat fixed calandria formula and rotary pulse formula.The shortcoming of flat fixed calandria formula is: pulse valve of a comb, pulse dust collector be 40 ~ 50 pulse valves at least, and 200 ~ 300 pulse valves wherein have a pulse valve to break down at most, will influence dust removing effects.The shortcoming of rotary pulse formula is: in a revolution deashing unit, can not effectively utilize four jiaos of spaces, want to reach filter area, will increase the length of filter bag or increase an area in the revolution deashing unit.Some actual conditions is unallowed.
Summary of the invention
The objective of the invention is provides a kind of coal-burning boiler deduster to the problem of above-mentioned existence; High pressure draught is to the washing away of filter bag when when guaranteeing deashing intensity, effectively having improved similar high-voltage pulse deduster deashing, also improved ash-removal effect the service life of having improved filter bag greatly simultaneously.
Above-mentioned purpose realizes through following technical scheme:
The coal-burning boiler deduster comprises the dirt air chamber that is installed on the steel bracket, and described dirt air chamber one end connects the air inlet smoke box; The other end connects the smoke box of giving vent to anger, and connects air-purifying chamber above the described dirt air chamber, connects flue-dust retainer below; Connect card on the described dirt gas chamber shell; Described card connects the filter bag device, and the inlet flue duct of described air inlet smoke box is connected the bypass flue respectively with exhaust pass, and described air-purifying chamber connects injection system; Described injection system connects air supply system, and described inlet flue duct connects spraying cooling device and dust precoating device.
Described coal-burning boiler deduster, described air supply system comprises pressurized tank, and described pressurized tank connects air compressor, and described air compressor connects dried-air drier, and described dried-air drier connects steam line.
Described coal-burning boiler deduster has smoke deflector respectively in described inlet flue duct and the described air inlet smoke box.
Described coal-burning boiler deduster, described radial-flow type long bag and low pulse sack cleaner, described spraying cooling device comprises water pump, described water pump connects shower nozzle through water pipe.
Beneficial effect:
1. the forefront of smoke inlet filter bag of the present invention also is provided with smoke deflector and dust pre-separate device.Can make flue gas flow rate even, avoid sweep of gases and scaling loss filter bag; Promoting cold blast sliding valve can open when boiler shutdown automatically, discharges to remain in a standstill at the inner flue gas of sack cleaner, dewfall can not take place after sack cleaner is shut down.When each ignition of the boiler when smoke directly ventilating, oil drop stove or oily coal multifuel combustion; Can open dust precoating device; Under the effect of boiler induced-draft fan, dust be adsorbed on earlier the filter bag outer surface form the dust film after sack cleaner put into operation again, the sticking bag of a greasy dirt phenomenon can not take place; At the sack cleaner smoke inlet spraying cooling device is housed, this system can work before flue gas surpasses the filtrate tolerable temperature automatically, and the cooling ability reaches >=30 ﹪ C °.Can protect filtrate not encroached on by high temperature.
2. the present invention can use a plurality of deduster combinations, is applicable to the flue gas of handling various large, medium and small generator group coal-burning boilers.
Description of drawings
Fig. 1, main TV structure sketch map of the present invention.
Fig. 2, vertical view of the present invention.
Fig. 3, left view of the present invention.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment, further illustrate the present invention.
Embodiment 1:
Shown in accompanying drawing 1: coal-burning boiler deduster of the present invention, comprise the dirt air chamber 2 that is installed on the steel bracket 1, described dirt air chamber one end connects air inlet smoke box 3; The other end connects the smoke box 4 of giving vent to anger, and connects air-purifying chamber 5 above the described dirt air chamber, connects flue-dust retainer 6 below; Connect card 7 on the described dirt gas chamber shell; Described card connects filter bag device 8, and the inlet flue duct 9 of described air inlet smoke box is connected bypass flue 11 respectively with exhaust pass 10, and described air-purifying chamber connects injection system 12; Described injection system connects air supply system 13, and described inlet flue duct connects spraying cooling device 14 and dust precoating device 15.
Embodiment 2:
Described coal-burning boiler deduster, described air supply system comprises pressurized tank 13-1, and described pressurized tank connects air compressor 13-2, and described air compressor connects dried-air drier 13-3, and described dried-air drier connects steam line 13-4.
Embodiment 3:
Described coal-burning boiler deduster has smoke deflector 16 respectively in described inlet flue duct and the described air inlet smoke box.
Embodiment 4:
Described coal-burning boiler deduster, described radial-flow type long bag and low pulse sack cleaner, described spraying cooling device comprises water pump 14-1, described water pump connects shower nozzle 14-3 through water pipe 14-2.
Claims (4)
1. a coal-burning boiler deduster comprises the dirt air chamber that is installed on the steel bracket, it is characterized in that: described dirt air chamber one end connects the air inlet smoke box; The other end connects the smoke box of giving vent to anger, and connects air-purifying chamber above the described dirt air chamber, connects flue-dust retainer below; Connect card on the described dirt gas chamber shell; Described card connects the filter bag device, and the inlet flue duct of described air inlet smoke box is connected the bypass flue respectively with exhaust pass, and described air-purifying chamber connects injection system; Described injection system connects air supply system, and described inlet flue duct connects spraying cooling device and dust precoating device.
2. coal-burning boiler deduster according to claim 1 is characterized in that: described air supply system comprises pressurized tank, and described pressurized tank connects air compressor, and described air compressor connects dried-air drier, and described dried-air drier connects steam line.
3. coal-burning boiler deduster according to claim 1 and 2 is characterized in that: have smoke deflector respectively in described inlet flue duct and the described air inlet smoke box.
4. coal-burning boiler deduster according to claim 1 and 2 is characterized in that: described radial-flow type long bag and low pulse sack cleaner, and described spraying cooling device comprises water pump, described water pump connects shower nozzle through water pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101658762A CN102698528A (en) | 2012-05-25 | 2012-05-25 | Dust remover of coal-fired boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101658762A CN102698528A (en) | 2012-05-25 | 2012-05-25 | Dust remover of coal-fired boiler |
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| Publication Number | Publication Date |
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| CN102698528A true CN102698528A (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012101658762A Pending CN102698528A (en) | 2012-05-25 | 2012-05-25 | Dust remover of coal-fired boiler |
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| CN (1) | CN102698528A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402754A (en) * | 2015-11-23 | 2016-03-16 | 重庆市合川区九峰煤炭有限公司 | Coal burning dust collecting device |
| CN105617788A (en) * | 2016-02-05 | 2016-06-01 | 湖南升华科技股份有限公司 | Rapid cleaning device of vacuum dryer filter screen, vacuum dryer filter unit and vacuum dryer filter screen cleaning method |
| CN106196123A (en) * | 2016-07-12 | 2016-12-07 | 湖南商学院 | A kind of boiler smoke dust pelletizing system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201154264Y (en) * | 2007-12-24 | 2008-11-26 | 哈尔滨工业大学环保科技股份有限公司 | Chambered orientation blowback bag type collector |
| CN201353463Y (en) * | 2009-01-20 | 2009-12-02 | 清华同方(鞍山)环保设备股份有限公司 | Long bag low-pressure pulse bag filter |
| CN102125787A (en) * | 2010-01-19 | 2011-07-20 | 哈尔滨辰能工大环保科技股份有限公司 | Runoff long-bag low-pressure pulse bag type dust collector |
| KR20110122926A (en) * | 2010-05-06 | 2011-11-14 | 주식회사 한엔코 | Bagfilter injection system of the dust collector which has re-rotary projection vice |
-
2012
- 2012-05-25 CN CN2012101658762A patent/CN102698528A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201154264Y (en) * | 2007-12-24 | 2008-11-26 | 哈尔滨工业大学环保科技股份有限公司 | Chambered orientation blowback bag type collector |
| CN201353463Y (en) * | 2009-01-20 | 2009-12-02 | 清华同方(鞍山)环保设备股份有限公司 | Long bag low-pressure pulse bag filter |
| CN102125787A (en) * | 2010-01-19 | 2011-07-20 | 哈尔滨辰能工大环保科技股份有限公司 | Runoff long-bag low-pressure pulse bag type dust collector |
| KR20110122926A (en) * | 2010-05-06 | 2011-11-14 | 주식회사 한엔코 | Bagfilter injection system of the dust collector which has re-rotary projection vice |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402754A (en) * | 2015-11-23 | 2016-03-16 | 重庆市合川区九峰煤炭有限公司 | Coal burning dust collecting device |
| CN105402754B (en) * | 2015-11-23 | 2017-09-19 | 重庆市合川区九峰煤炭有限公司 | A kind of coal burning dust collecting |
| CN105617788A (en) * | 2016-02-05 | 2016-06-01 | 湖南升华科技股份有限公司 | Rapid cleaning device of vacuum dryer filter screen, vacuum dryer filter unit and vacuum dryer filter screen cleaning method |
| CN106196123A (en) * | 2016-07-12 | 2016-12-07 | 湖南商学院 | A kind of boiler smoke dust pelletizing system |
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Application publication date: 20121003 |