CN102600695B - Energy-saving desulfuration and denitrification dust collector for large boiler - Google Patents
Energy-saving desulfuration and denitrification dust collector for large boiler Download PDFInfo
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- CN102600695B CN102600695B CN2012100777618A CN201210077761A CN102600695B CN 102600695 B CN102600695 B CN 102600695B CN 2012100777618 A CN2012100777618 A CN 2012100777618A CN 201210077761 A CN201210077761 A CN 201210077761A CN 102600695 B CN102600695 B CN 102600695B
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Abstract
The invention relates to an energy-saving desulfuration and denitrification dust collector, particularly to an energy-saving desulfuration and denitrification dust collector for a large boiler, aiming at solving the problems that the existing boiler is low in efficiency, the environment in a boiler room is seriously polluted, the efficiency of the desulfuration and denitrification dust collector is low, and the body health of workers is affected. According to the invention, a waste heat boiler of each desulfuration dedusting assembly is connected with a boiler smoke outlet of a chain grate stoker hot water boiler with a longitudinal boiler barrel, the waste heat boiler is communicated with an air preheater, a first desulfuration chamber is connected with an exhaust opening of an air blower, the smoke outlet of the waste heat boiler is connected with an anti-explosion bypass flue and a wet-method desulphurization dust collector assembly, each swirling water membrane desulfuration and denitrification dedusting tower is connected with a swirling water membrane desulfuration dedusting auxiliary tower, and each swirling water membrane desulfuration dedusting auxiliary tower is connected with a chimney bridge by a third air inducing flue. The energy-saving desulfuration and denitrification dust collector is used for desulfuration and denitrification and dedusting of large boilers.
Description
Technical field
The present invention relates to a kind of energy-saving desulfuration denitrifying dedust apparatus, be specifically related to a kind of large-sized boiler energy-saving desulfuration denitrifying dedust apparatus.
Background technology
Existing boiler thermal output is not high, and explosion-proof by-pass flue is not set in boiler room, and potential safety hazard is arranged, and environmental pollution is comparatively serious, has affected the workman healthy; Desulfurizing dust-collector generally adopts ceramic multicyclone dust collector, and the floor space of deduster is large, and because Whirlwind cyclone on ceramic multicyclone dust collector is pottery, ceramic rapid wear, need often to change.Large bag-type dust and electric precipitation power consumption are large, and efficiency of dust collection is not high, again can't desulfurization.Sulfur dioxide, nitrogen oxide emission are high, and airborne dust, lingemann blackness do not reach environmental protection index.
Summary of the invention
The present invention is not high for solving existing boiler efficiency, and the boiler room environment pollution is serious, and the desulfur denitrate dust collecting device efficiency is low, has affected the healthy problem of workman, and sulfur dioxide, nitrogen oxide emission are high, and airborne dust, lingemann blackness do not reach environmental protection index.And then a kind of large-sized boiler energy-saving desulfuration denitrifying dedust apparatus proposed.
the present invention addresses the above problem the technical scheme of taking to be: the present invention includes water tank, two desulfurization and dedusting assemblies, Yancong Qiaozi, chimney, drum longitudinal chain grate hot-water boiler and four mud sewage pumps, drum longitudinal chain grate hot-water boiler is connected with two desulfurization and dedusting assemblies, two desulfurization and dedusting assemblies are connected with chimney by Yancong Qiaozi, four mud sewage pumps are arranged on the Yancong Qiaozi bottom, each desulfurization and dedusting assembly comprises waste heat boiler, air preheater, the first desulfurization dust chamber, air blast, explosion-proof by-pass flue and wet desulfurizing dust-remover assembly, air-introduced machine, two eddy flow moisture film desulfur denitrate dust collecting towers, two auxiliary towers of eddy flow moisture film desulfur denitrate dust collecting and two the 3rd air inducing flues, the waste heat boiler of each desulfurization and dedusting assembly is connected with a boiler smoke outlet of drum longitudinal chain grate hot-water boiler respectively, waste heat boiler is communicated with air preheater, air preheater is communicated with the first desulfurization dust chamber, the first desulfurization dust chamber is connected with the air blast inlet scoop of air blast, the exhaust opening of waste heat boiler is connected with explosion-proof by-pass flue and wet desulfurizing dust-remover assembly, explosion-proof by-pass flue and wet desulfurizing dust-remover assembly are connected with the first air inducing flue of air-introduced machine, two the second air inducing flues of air-introduced machine are connected with two eddy flow moisture film desulfur denitrate dust collecting towers respectively, each eddy flow moisture film desulfur denitrate dust collecting tower is connected with an auxiliary tower of eddy flow moisture film desulfurization and dedusting respectively, the auxiliary tower of each eddy flow moisture film desulfurization and dedusting is connected with Yancong Qiaozi by the 3rd an air inducing flue respectively, the explosion-proof by-pass flue of each desulfurization and dedusting assembly and wet desulfurizing dust-remover assembly, two eddy flow moisture film desulfur denitrate dust collecting towers, two auxiliary towers of eddy flow moisture film desulfurization and dedusting all are connected with water tank.
The invention has the beneficial effects as follows: the present invention adopts the double-deck longitudinal of drum to arrange, heating surface area is large, and radiation heating-surface is large, and economizer surface is large, boiler thermal output is greater than 88%, the 10%-20% that economizes on coal, improve boiler output 120%-125%, in running of the present invention, flow of flue gas is unimpeded, pressure head is little, resistance is little, reduces the power of air blast and air-introduced machine, saves energy 20%; The present invention adopts two cover air blast and induced draught systems, makes coal-fired fully burning, has solved inclined to one side burning problem; Desulfuration efficiency of the present invention reaches more than 90%, efficiency of dust collection reaches more than 95%, by Multistage desulfurations such as first grade desulfurizing dirt pocket, wet desulfurizing dust-remover, eddy flow moisture film desulfurized dust collection column, eddy flow moisture film desulfurization and dedusting secondary towers, flue dust sulfur content Reducing exhaust emission, smoke discharge amount reduces; Air blast of the present invention air port arranges high vacant duct, flue dust in boiler room and room air can be sucked, and keeps indoor environmental hygiene, is conducive to the workman healthy; The present invention reduces heat loss due to exhaust gas, reduces the greenhouse discharging, and exhaust gas temperature is reduced to 105 ℃-130 ℃, after desulfurization and dedusting of the present invention, has reduced soot emissions, the final discharge as white gas; Saving water resource of the present invention, take full advantage of boiler blowdown water; Interruption of service rate of the present invention is low, and excessive when the boiler malleation, in while falling the cigarette in boiler room, the unlatching by-pass flue is discharged fume, and also can open by-pass flue during blowing out and discharge fume.
Description of drawings
Fig. 1 is front view of the present invention, and Fig. 2 is Fig. 1 top view.
The specific embodiment
the specific embodiment one: present embodiment is described in conjunction with Fig. 1 and Fig. 2, the described a kind of large-sized boiler energy-saving desulfuration denitrifying dedust apparatus of present embodiment comprises water tank 1, two desulfurization and dedusting assemblies 2, Yancong Qiaozi 3, chimney 4, drum longitudinal chain grate hot-water boiler 16 and four mud sewage pumps 5, drum longitudinal chain grate hot-water boiler 16 is connected with two desulfurization and dedusting assemblies 2, two desulfurization and dedusting assemblies 2 are connected with chimney 4 by Yancong Qiaozi 3, four mud sewage pumps 5 are arranged on Yancong Qiaozi 3 bottoms, each desulfurization and dedusting assembly 2 comprises waste heat boiler 6, air preheater 7, the first desulfurization dust chamber 8, air blast 9, explosion-proof by-pass flue and wet desulfurizing dust-remover assembly 10, air-introduced machine 11, two eddy flow moisture film desulfur denitrate dust collecting towers 12, two auxiliary towers 13 of eddy flow moisture film desulfur denitrate dust collecting and two the 3rd air inducing flues 14, the waste heat boiler 6 of each desulfurization and dedusting assembly 2 is connected with a boiler smoke outlet of drum longitudinal chain grate hot-water boiler 16 respectively, waste heat boiler 6 is communicated with air preheater 7, air preheater 7 is communicated with the first desulfurization dust chamber 8, the first desulfurization dust chamber 8 is connected with the air blast inlet scoop of air blast 9, the exhaust opening of waste heat boiler 6 is connected with explosion-proof by-pass flue and wet desulfurizing dust-remover assembly 10, explosion-proof by-pass flue and wet desulfurizing dust-remover assembly 10 are connected with the first air inducing flue 11-1 of air-introduced machine 11, two the second air inducing flue 11-2 of air-introduced machine 11 are connected with two eddy flow moisture film desulfur denitrate dust collecting towers 12 respectively, each eddy flow moisture film desulfur denitrate dust collecting tower 12 is connected with an auxiliary tower 13 of eddy flow moisture film desulfur denitrate dust collecting respectively, the auxiliary tower 13 of each eddy flow moisture film desulfur denitrate dust collecting is connected with Yancong Qiaozi 3 by the 3rd an air inducing flue 14 respectively, the explosion-proof by-pass flue of each desulfurization and dedusting assembly 2 and wet desulfurizing dust-remover assembly 10, two eddy flow moisture film desulfur denitrate dust collecting towers 12, two auxiliary towers 13 of eddy flow moisture film desulfur denitrate dust collecting all are connected with water tank 1.
the specific embodiment two: present embodiment is described in conjunction with Fig. 1 and Fig. 2, explosion-proof by-pass flue and the wet desulfurizing dust-remover assembly 10 of the described a kind of large-sized boiler energy-saving desulfuration denitrifying dedust apparatus of present embodiment comprise explosion-proof by-pass flue and wet desulfurizing dust-remover 10-1, by-pass flue smoke barrier 10-2, by-pass flue 10-3 and smoke barrier slide fastener 10-4, explosion-proof by-pass flue and wet desulfurizing dust-remover 10-1, explosion-proof by-pass flue and wet desulfurizing dust-remover 10-1 are connected with Yancong Qiaozi 3 by by-pass flue 10-3, by-pass flue smoke barrier 10-2 is arranged on by-pass flue 10-3, the upper end of smoke barrier slide fastener 10-4 is connected with by-pass flue smoke barrier 10-2, the water inlet end of explosion-proof by-pass flue and wet desulfurizing dust-remover 10-1 is communicated with water tank 1.Other composition and annexation are identical with the specific embodiment one.
The specific embodiment three: in conjunction with Fig. 1, present embodiment is described, respectively is provided with respectively a water tank staircase 15 on the lateral wall of the water tank 1 of the described a kind of large-sized boiler energy-saving desulfuration denitrifying dedust apparatus of present embodiment and madial wall.Other composition and annexation are identical with the specific embodiment one or two.
Claims (2)
1. large-sized boiler energy-saving desulfuration denitrifying dedust apparatus, it is characterized in that: described a kind of large-sized boiler energy-saving desulfuration denitrifying dedust apparatus comprises water tank (1), two desulfurization and dedusting assemblies (2), Yancong Qiaozi (3), chimney (4), drum longitudinal chain grate hot-water boiler (16) and four mud sewage pumps (5), drum longitudinal chain grate hot-water boiler (16) is connected with two desulfurization and dedusting assemblies (2), two desulfurization and dedusting assemblies (2) are connected with chimney (4) by Yancong Qiaozi (3), four mud sewage pumps (5) are arranged on Yancong Qiaozi (3) bottom, each desulfurization and dedusting assembly (2) comprises waste heat boiler (6), air preheater (7), the first desulfurization dust chamber (8), air blast (9), explosion-proof by-pass flue and wet desulfurizing dust-remover assembly (10), air-introduced machine (11), two eddy flow moisture film desulfur denitrate dust collecting towers (12), two auxiliary towers of eddy flow moisture film desulfur denitrate dust collecting (13) and two the 3rd air inducing flues (14), the waste heat boiler (6) of each desulfurization and dedusting assembly (2) is connected with a boiler smoke outlet of drum longitudinal chain grate hot-water boiler (16) respectively, waste heat boiler (6) is communicated with air preheater (7), air preheater (7) is communicated with the first desulfurization dust chamber (8), the first desulfurization dust chamber (8) is connected with the air blast inlet scoop of air blast (9), the exhaust opening of waste heat boiler (6) is connected with explosion-proof by-pass flue and wet desulfurizing dust-remover assembly (10), explosion-proof by-pass flue and wet desulfurizing dust-remover assembly (10) are connected with the first air inducing flue (11-1) of air-introduced machine (11), two the second air inducing flues (11-2) of air-introduced machine (11) are connected with two eddy flow moisture film desulfur denitrate dust collecting towers (12) respectively, each eddy flow moisture film desulfur denitrate dust collecting tower (12) is connected with an auxiliary tower of eddy flow moisture film desulfur denitrate dust collecting (13) respectively, each auxiliary tower of eddy flow moisture film desulfur denitrate dust collecting (13) is connected with Yancong Qiaozi (3) by the 3rd an air inducing flue (14) respectively, the explosion-proof by-pass flue of each desulfurization and dedusting assembly (2) and wet desulfurizing dust-remover assembly (10), two eddy flow moisture film desulfur denitrate dust collecting towers (12), two auxiliary towers of eddy flow moisture film desulfur denitrate dust collecting (13) all are connected with water tank (1), described explosion-proof by-pass flue and wet desulfurizing dust-remover assembly (10) comprise explosion-proof by-pass flue and wet desulfurizing dust-remover (10-1), by-pass flue smoke barrier (10-2), by-pass flue (10-3) and smoke barrier slide fastener (10-4), explosion-proof by-pass flue and wet desulfurizing dust-remover (10-1) are connected with Yancong Qiaozi (3) by by-pass flue (10-3), by-pass flue smoke barrier (10-2) is arranged on by-pass flue (10-3), the upper end of smoke barrier slide fastener (10-4) is connected with by-pass flue smoke barrier (10-2), the water inlet end of explosion-proof by-pass flue and wet desulfurizing dust-remover (10-1) is communicated with water tank (1).
2. a kind of large-sized boiler energy-saving desulfuration denitrifying dedust apparatus according to claim 1, is characterized in that: respectively be provided with respectively a water tank staircase (15) on the lateral wall of water tank (1) and madial wall.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100777618A CN102600695B (en) | 2012-03-22 | 2012-03-22 | Energy-saving desulfuration and denitrification dust collector for large boiler |
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| CN2012100777618A CN102600695B (en) | 2012-03-22 | 2012-03-22 | Energy-saving desulfuration and denitrification dust collector for large boiler |
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| CN102600695A CN102600695A (en) | 2012-07-25 |
| CN102600695B true CN102600695B (en) | 2013-11-13 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104296538A (en) * | 2013-07-19 | 2015-01-21 | 贵阳铝镁设计研究院有限公司 | Device and method for lowering temperature of flue gas in accident flue |
| CN104791821B (en) * | 2015-05-06 | 2018-01-26 | 中国能源建设集团广东省电力设计研究院有限公司 | The power plant outlet of deduster four and the rear air and gas system combination layout structure of biserial air-introduced machine |
| CN104879765B (en) * | 2015-06-10 | 2018-01-26 | 中国能源建设集团广东省电力设计研究院有限公司 | Air and gas system combination layout structure after the six outlet biserials with flue gas waste heat recovery apparatus |
| CN104896491B (en) * | 2015-06-10 | 2018-01-26 | 中国能源建设集团广东省电力设计研究院有限公司 | Air and gas system combination layout structure after the four outlet biserials with flue gas waste heat recovery apparatus |
Citations (5)
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| CN2804619Y (en) * | 2005-06-09 | 2006-08-09 | 济南快通锅炉设备有限公司 | Coal ash secondary reburning appts. with multi-tube duster |
| CN101053747A (en) * | 2007-04-30 | 2007-10-17 | 武汉凯迪电力环保有限公司 | Simultaneously desulfurization and denitration wet ammonia flue gas cleaning technology and system thereof |
| CN101700463A (en) * | 2008-02-19 | 2010-05-05 | 孙伟杰 | Method for desulfurating and denitrating and recovering sulfur resource in closed cycle way |
| CN102297509A (en) * | 2011-09-30 | 2011-12-28 | 哈尔滨市天地宽节能技术有限公司 | Boiler drum longitudinally arranged chain grate hot water boiler |
| CN202092147U (en) * | 2011-04-29 | 2011-12-28 | 河南巨龙生物工程股份有限公司 | Dust removing device for flue pipe of boiler |
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2012
- 2012-03-22 CN CN2012100777618A patent/CN102600695B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2804619Y (en) * | 2005-06-09 | 2006-08-09 | 济南快通锅炉设备有限公司 | Coal ash secondary reburning appts. with multi-tube duster |
| CN101053747A (en) * | 2007-04-30 | 2007-10-17 | 武汉凯迪电力环保有限公司 | Simultaneously desulfurization and denitration wet ammonia flue gas cleaning technology and system thereof |
| CN101700463A (en) * | 2008-02-19 | 2010-05-05 | 孙伟杰 | Method for desulfurating and denitrating and recovering sulfur resource in closed cycle way |
| CN202092147U (en) * | 2011-04-29 | 2011-12-28 | 河南巨龙生物工程股份有限公司 | Dust removing device for flue pipe of boiler |
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