CN202555128U - Equipment for desulfurizing in boiler by using semidry process desulfurization ash - Google Patents

Equipment for desulfurizing in boiler by using semidry process desulfurization ash Download PDF

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Publication number
CN202555128U
CN202555128U CN2012201588958U CN201220158895U CN202555128U CN 202555128 U CN202555128 U CN 202555128U CN 2012201588958 U CN2012201588958 U CN 2012201588958U CN 201220158895 U CN201220158895 U CN 201220158895U CN 202555128 U CN202555128 U CN 202555128U
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CN
China
Prior art keywords
pipeline
boiler
equipment
semi
ash
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Expired - Lifetime
Application number
CN2012201588958U
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Chinese (zh)
Inventor
孙琦明
范祥子
应隆飚
毛庚仁
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LANTIAN ENVIRONMENTAL ENGINEERING Co Ltd
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LANTIAN ENVIRONMENTAL ENGINEERING Co Ltd
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Priority to CN2012201588958U priority Critical patent/CN202555128U/en
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Abstract

The utility model discloses equipment for desulfurizing in a boiler by using semidry process desulfurization ash. The equipment comprises a boiler (1), a dust remover (2), a semidry process desulfurization tower (3), a bag-type dust remover (4) and a chimney (5), wherein the bag-type dust remover (4) is connected with a barn pump (6) through a pipeline; and the barn pump (6) is connected with an ash bank (7) through a pipeline. The equipment is characterized in that: a lead-out pipeline (8) is arranged on a connecting pipeline between the barn pump (6) and the ash bank (7), and is connected with the boiler (1). Due to the adoption of the equipment, dry desulfurization ash can be recycled, the problem of waste of adsorbent is solved effectively, desulfurization ash is more convenient for utilizing, and the desulfurization cost of a power plant is lowered effectively.

Description

A kind of equipment that semi-dry desulphurization ash is used for boiler in-furnace desulfurization
Technical field
The utility model relates to and a kind of semi-dry desulphurization ash is used for the equipment of boiler in-furnace desulfurization, belongs to the desulfur technology field.
Background technology
Along with development of science and technology, human increasingly high to demands for energy, the depletion rate of natural resources is more and more faster, so people begin to advocate energy-saving and emission-reduction.
In the prior art; The power plant adopts semi-dry process flue gas desulphurization can generate dried desulphurization ash in the gas cleaning process, does desulphurization ash and after sack cleaner is discharged, is transported to the storehouse pump; The storehouse pump will be done desulphurization ash again and be delivered to grey storehouse then; Contain desulfurization reaction product, flyash and unreacted absorbent owing to do in the desulphurization ash, unreacted absorbent accounts for 10%~30%, has caused the waste of absorbent so on the one hand; Cause desulphurization ash to be difficult to utilize on the other hand, adopt the desulphurization cost of this sulfur method power plant higher in addition.
The utility model content
The purpose of the utility model is; Provide a kind of semi-dry desulphurization ash is used for the equipment of boiler in-furnace desulfurization, it can effectively solve the problem of waste absorbent with doing the desulphurization ash recycling; And make desulphurization ash be convenient to more utilize, effectively reduce the desulphurization cost of power plant.
The technical scheme of the utility model: a kind of equipment that semi-dry desulphurization ash is used for boiler in-furnace desulfurization; Comprise the boiler, deduster, semi-dry desulphurization tower, sack cleaner, the chimney that connect successively through pipeline; Sack cleaner also is connected with the storehouse pump through pipeline; The storehouse pump is connected with grey storehouse through pipeline, and it is characterized in that: the connecting line in storehouse pump and grey storehouse is provided with draws pipeline, draws pipeline and is connected with boiler.
The aforesaid this equipment that semi-dry desulphurization ash is used for boiler in-furnace desulfurization; Draw pipeline and be provided with middle grey storehouse, measuring chute and jet pump; The top in middle grey storehouse with draw pipeline and be connected; The bottom is connected with the import of measuring chute through drawing pipeline, and the outlet of measuring chute is connected with jet pump through drawing pipeline, and jet pump is connected with the burner hearth of boiler or the coal feeding hole on the boiler through drawing pipeline.The desulphurization ash storehouse is also named in middle grey storehouse, if there is not this storehouse, because the supplied materials of desulphurization ash is discontinuous, can cause the situation that does not have the desulfuration in furnace raw material.The effect of measuring chute is a Weighing, if there is not Weighing, should add with regard to uncontrollable how much ash is to boiler, weighs through this and regulates the frequency of below rotatory feeder valve, and this rotatory feeder valve is a VFC.
Aforesaidly this semi-dry desulphurization ash is used for the equipment of boiler in-furnace desulfurization, also is provided with blower fan on the said jet pump.
Aforesaid semi-dry desulphurization ash is used for the equipment of boiler in-furnace desulfurization, the fluidized wind pipeline in middle grey storehouse is provided with electric heater.The effect of electric heater is the heating fluidized wind, mainly aims to prevent air dewfall and the empty phenomenon that causes stifled ash of cohering.
The aforesaid equipment that semi-dry desulphurization ash is used for boiler in-furnace desulfurization; Also comprise a compressed air line; Compressed air line respectively with electric heater, jet pump and boiler between draw pipeline, middle grey storehouse is connected; Wherein draw a end that pipeline is connected with jet pump and draw the end that pipeline is connected with boiler and be equipped with soot blower, the air inlet of soot blower is connected with compressed air line.The effect 1 of compressed air line is to supply fluidized wind to grey storehouse, centre, and grey storehouse ash hardens, puts up a bridge, stops up in the middle of preventing, effect 2 is to supply to blow ash to soot blower to use compressed air, prevents the stifled ash of ash handing pipeline.
Aforesaid semi-dry desulphurization ash is used for the equipment of boiler in-furnace desulfurization, the junction of drawing pipeline and boiler is provided with pneumatic push-pull valve.
Aforesaid semi-dry desulphurization ash is used for the equipment of boiler in-furnace desulfurization, is equipped with rotatory feeder valve on the pipeline with drawing of being connected with outlet of the import of measuring chute, drawing of wherein being connected with the import of measuring chute also is provided with the maintenance gate valve on the pipeline.
Compared with prior art; The utility model is owing to carry dried desulphurization ash to the pipeline in grey storehouse, to set up one road pipeline at the storehouse pump; Can the product-dried desulphurization ash of semi-dry process flue gas desulphurization be transported to and participate in desulphurization reaction in the boiler once more; The desulfurizing agent of doing in the desulphurization ash 10%~30% is made full use of, solved the waste problem of absorbent like this, effectively reduce the desulphurization cost of power plant.
In addition, dried desulphurization ash is transported to participates in the boiler being changed into flyash behind the secondary desulphurization reaction, efficiently solves the problem that the conventional dry desulphurization ash is difficult to be utilized like this.
Owing to set up middle grey storehouse, efficiently solve because of the discontinuous meeting of desulphurization ash supplied materials and cause the problem that does not have desulfurization material in the stove.Owing to set up measuring chute, efficiently solved the uncontrollable problem of desulphurization ash adding boiler amount of doing.Owing on the fluidized wind pipeline in grey storehouse, centre, set up electric heater, can prevent effectively that air dewfall and the empty phenomenon that causes stifled ash of cohering from taking place.Owing to set up compressed air line, supply fluidized wind can on the one hand middle grey storehouse, grey storehouse ash hardens, puts up a bridge, stops up in the middle of preventing; Can provide to soot blower on the other hand and blow ash and use compressed air, prevent that ash handing pipeline is stifled grey.
Description of drawings
Fig. 1 is the overall structure sketch map of the utility model;
Fig. 2 is the annexation figure between middle grey storehouse, measuring chute, jet pump and the boiler.
Being labeled as in the accompanying drawing: 1-boiler, 2-deduster, 3-semi-dry desulphurization tower, 4-sack cleaner, 5-chimney; 6-storehouse pump, 7-ash storehouse, 8-draws pipeline, grey storehouse in the middle of the 9-, 10-measuring chute; The 11-jet pump, 12-compressed air line, the pneumatic push-pull valve of 13-, 14-soot blower; The 15-rotatory feeder valve, 16-overhauls gate valve, 17-electric heater, 18-blower fan.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment patent art is further described.
The embodiment 1 of the utility model: a kind of equipment that semi-dry desulphurization ash is used for boiler in-furnace desulfurization; Comprise the boiler 1, deduster 2, semi-dry desulphurization tower 3, sack cleaner 4, the chimney 5 that connect successively through pipeline; Sack cleaner 4 also is connected with storehouse pump 6 through pipeline; Storehouse pump 6 is connected with grey storehouse 7 through pipeline, and the connecting line in storehouse pump 6 and grey storehouse 7 is provided with draws pipeline 8, draws pipeline 8 and is connected with boiler 1.
The embodiment 2 of the utility model: as depicted in figs. 1 and 2; A kind of equipment that semi-dry desulphurization ash is used for boiler in-furnace desulfurization; Comprise the boiler 1, deduster 2, semi-dry desulphurization tower 3, sack cleaner 4, the chimney 5 that connect successively through pipeline, sack cleaner 4 also is connected with storehouse pump 6 through pipeline, and storehouse pump 6 is connected with grey storehouse 7 through pipeline; The connecting line in storehouse pump 6 and grey storehouse 7 is provided with draws pipeline 8, draws pipeline 8 and is connected with the coal feeding hole of boiler 1.
Draw pipeline 8 grey storehouse 9, measuring chute 10 and jet pump 11 in the middle of being provided with; The top in middle grey storehouse 9 with draw pipeline 8 and be connected; The bottom is connected with the import of measuring chute 10 through drawing pipeline 8; The outlet of measuring chute 10 is connected with jet pump 11 through drawing pipeline 8, and jet pump 11 is connected with the burner hearth of boiler 1 or the coal feeding hole on the boiler 1 through drawing pipeline 8, and jet pump 11 also is connected with blower fan 18.The fluidized wind pipeline in middle grey storehouse 9 is provided with electric heater 17.
Also comprise a compressed air line 12; Compressed air line 12 respectively with electric heater 17, jet pump 11 and boiler 1 between draw pipeline 8, middle grey storehouse 9 is connected; Wherein draw a end that pipeline 8 is connected with jet pump 11 and draw the end that pipeline 8 is connected with boiler 1 and be equipped with soot blower 14, the air inlet of soot blower 14 is connected with compressed air line 12.The junction of drawing pipeline 8 and boiler 1 is provided with pneumatic push-pull valve 13.
Be equipped with rotatory feeder valve 15 on the pipeline 8 with drawing of being connected with outlet of the import of measuring chute 10, wherein be connected with the import of measuring chute 10 draw also to be provided with on the pipeline 8 overhauled gate valve 16.
The embodiment 3 of the utility model: as depicted in figs. 1 and 2; A kind of equipment that semi-dry desulphurization ash is used for boiler in-furnace desulfurization; Comprise the boiler 1, deduster 2, semi-dry desulphurization tower 3, sack cleaner 4, the chimney 5 that connect successively through pipeline, sack cleaner 4 also is connected with storehouse pump 6 through pipeline, and storehouse pump 6 is connected with grey storehouse 7 through pipeline; The connecting line in storehouse pump 6 and grey storehouse 7 is provided with draws pipeline 8, draws pipeline 8 and is connected with the burner hearth of boiler 1.
Draw pipeline 8 grey storehouse 9, measuring chute 10 and jet pump 11 in the middle of being provided with; The top in middle grey storehouse 9 with draw pipeline 8 and be connected; The bottom is connected with the import of measuring chute 10 through drawing pipeline 8; The outlet of measuring chute 10 is connected with jet pump 11 through drawing pipeline 8, and jet pump 11 is connected with the burner hearth of boiler 1 or the coal feeding hole on the boiler 1 through drawing pipeline 8, and jet pump 11 also is connected with blower fan 18.The fluidized wind pipeline in middle grey storehouse 9 is provided with electric heater 17.
Also comprise a compressed air line 12; Compressed air line 12 respectively with electric heater 17, jet pump 11 and boiler 1 between draw pipeline 8, middle grey storehouse 9 is connected; Wherein draw a end that pipeline 8 is connected with jet pump 11 and draw the end that pipeline 8 is connected with boiler 1 and be equipped with soot blower 14, the air inlet of soot blower 14 is connected with compressed air line 12.The junction of drawing pipeline 8 and boiler 1 is provided with pneumatic push-pull valve 13.
Be equipped with rotatory feeder valve 15 on the pipeline 8 with drawing of being connected with outlet of the import of measuring chute 10, wherein be connected with the import of measuring chute 10 draw also to be provided with on the pipeline 8 overhauled gate valve 16.
The operation principle of the utility model: when semi-dry process flue gas desulphurization, produce and do desulphurization ash; Carry dried desulphurization ash to the pipeline in grey storehouse, to set up one road pipeline at the storehouse pump; After dried desulphurization ash gets into the pipeline of setting up, grey storehouse in the middle of being delivered to through pipeline earlier, grey storehouse is delivered to measuring chute through pipeline from the centre then; From measuring chute, flow to jet pump at last, spray into the burner hearth of boiler or the coal feeding hole of boiler by jet pump.Do absorbent and fume duct fly ash that the desulfurization ash composition comprises desulfurization reaction product, do not consume, do desulphurization ash and in stove, participate in changing into flyash behind the desulphurization reaction.

Claims (7)

1. equipment that semi-dry desulphurization ash is used for boiler in-furnace desulfurization; Comprise the boiler (1), deduster (2), semi-dry desulphurization tower (3), sack cleaner (4), the chimney (5) that connect successively through pipeline; Sack cleaner (4) also is connected with storehouse pump (6) through pipeline; Storehouse pump (6) is connected with Hui Ku (7) through pipeline, it is characterized in that: the connecting line in storehouse pump (6) and grey storehouse (7) is provided with draws pipeline (8), draws pipeline (8) and is connected with boiler (1).
2. a kind of equipment that semi-dry desulphurization ash is used for boiler in-furnace desulfurization according to claim 1; It is characterized in that: draw pipeline (8) and be provided with middle grey storehouse (9), measuring chute (10) and jet pump (11); The top in middle grey storehouse (9) with draw pipeline (8) and be connected; The bottom is connected with the import of measuring chute (10) through drawing pipeline (8); The outlet of measuring chute (10) is connected with jet pump (11) through drawing pipeline (8), and jet pump (11) is connected with the burner hearth of boiler (1) or the coal feeding hole on the boiler (1) through drawing pipeline (8).
3. according to claim 2ly a kind of semi-dry desulphurization ash is used for the equipment of boiler in-furnace desulfurization, it is characterized in that: also be provided with blower fan (18) on the said jet pump (11).
4. according to claim 2ly a kind of semi-dry desulphurization ash is used for the equipment of boiler in-furnace desulfurization, it is characterized in that: the fluidized wind pipeline in middle grey storehouse (9) is provided with electric heater (17).
5. a kind of equipment that semi-dry desulphurization ash is used for boiler in-furnace desulfurization according to claim 4; It is characterized in that: also comprise a compressed air line (12); Compressed air line (12) respectively with electric heater (17), jet pump (11) and boiler (1) between draw pipeline (8), middle grey storehouse (9) is connected; Wherein draw a end that pipeline (8) is connected with jet pump (11) and draw the end that pipeline (8) is connected with boiler (1) and be equipped with soot blower (14), the air inlet of soot blower (14) is connected with compressed air line (12).
6. describedly a kind of semi-dry desulphurization ash is used for the equipment of boiler in-furnace desulfurization according to any one in the claim 1~5, it is characterized in that: the junction of drawing pipeline (8) and boiler (1) is provided with pneumatic push-pull valve (13).
7. according to any described a kind of equipment that semi-dry desulphurization ash is used for boiler in-furnace desulfurization in the claim 2~5; It is characterized in that: be equipped with rotatory feeder valve (15) on the pipeline (8) with drawing of being connected with outlet of the import of measuring chute (10), wherein be connected with the import of measuring chute (10) draw also to be provided with on the pipeline (8) overhauled gate valve (16).
CN2012201588958U 2012-04-13 2012-04-13 Equipment for desulfurizing in boiler by using semidry process desulfurization ash Expired - Lifetime CN202555128U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102614773A (en) * 2012-04-13 2012-08-01 蓝天环保设备工程股份有限公司 Method and application equipment for desulphurization in furnace of boiler with desulphurization ash in semi-dry process
CN103239984A (en) * 2013-05-15 2013-08-14 山西平朔煤矸石发电有限责任公司 Dry-process fine continuous desulfurization device and method for CFB (Circulating Fluidized Bed) boiler
CN103418598A (en) * 2013-07-11 2013-12-04 江苏卓易环保科技有限公司 Novel system and method for recovery of anaerobic thermal decomposition of desulfurized fly ash

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102614773A (en) * 2012-04-13 2012-08-01 蓝天环保设备工程股份有限公司 Method and application equipment for desulphurization in furnace of boiler with desulphurization ash in semi-dry process
CN103239984A (en) * 2013-05-15 2013-08-14 山西平朔煤矸石发电有限责任公司 Dry-process fine continuous desulfurization device and method for CFB (Circulating Fluidized Bed) boiler
CN103239984B (en) * 2013-05-15 2015-05-06 山西平朔煤矸石发电有限责任公司 Dry-process fine continuous desulfurization device and method for CFB (Circulating Fluidized Bed) boiler
CN103418598A (en) * 2013-07-11 2013-12-04 江苏卓易环保科技有限公司 Novel system and method for recovery of anaerobic thermal decomposition of desulfurized fly ash

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Granted publication date: 20121128