CN201618476U - Deduster - Google Patents

Deduster Download PDF

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Publication number
CN201618476U
CN201618476U CN2009202893693U CN200920289369U CN201618476U CN 201618476 U CN201618476 U CN 201618476U CN 2009202893693 U CN2009202893693 U CN 2009202893693U CN 200920289369 U CN200920289369 U CN 200920289369U CN 201618476 U CN201618476 U CN 201618476U
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CN
China
Prior art keywords
deduster
bag
grid
spark
chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2009202893693U
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Chinese (zh)
Inventor
何顺永
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HUANGSHI LANTIAN DUST-REMOVING EQUIPMENT MANUFACTURING Co Ltd
Original Assignee
HUANGSHI LANTIAN DUST-REMOVING EQUIPMENT MANUFACTURING Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HUANGSHI LANTIAN DUST-REMOVING EQUIPMENT MANUFACTURING Co Ltd filed Critical HUANGSHI LANTIAN DUST-REMOVING EQUIPMENT MANUFACTURING Co Ltd
Priority to CN2009202893693U priority Critical patent/CN201618476U/en
Application granted granted Critical
Publication of CN201618476U publication Critical patent/CN201618476U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a deduster which comprises a plurality of chambers enclosed by boxboards, and each chamber comprises a cloth-bag dedusting unit. Each chamber also comprises a sparkproof unit which is arranged at the inlet of each chamber of the deduster and comprises a plurality of spark collecting grids arranged in parallel, and each spark collecting grid tilts toward the boxboards. The sparkproof unit and the cloth-bag dedusting unit of the deduster are combined with each other organically in the same smoke area and can interact on each other well no matter in the large particle collection process or in the process of transferring sparks contained in frying dust to the filtrating area. The deduster can improve deducting efficiency greatly and overcome the large resistance problem of the traditional deduster.

Description

Deduster
[technical field]
The utility model relates to environmental protection equipment, relates in particular to a kind of deduster that is used to remove dust in flue gas.
[background technology]
At present, the main cleaner that the biomass energy smoke pollution of boiler is administered is an electric cleaner, the combined duster of one-level whirlwind and secondary bag-type dust.
Advantages such as electric cleaner is low, simple to operate with its efficient height, running resistance, operation maintenance is few are widely used in industries such as electric power, metallurgy, building materials, chemical industry.Electric cleaner mainly has following characteristics: the electric cleaner body pressure loss is little, and is general<300Pa; Can handle the large-scale industry flue gas; High temperature resistant, can be in operation below 400 ℃; The critical piece long service life, easy maintenance.
Yet, electric cleaner can't normally use in biomass energy boiler smoke special operation condition occasion, because it is it is very big that its dust removal performance is influenced by living beings dust physics and chemical characteristic, undesirable for effects such as high resistivity dust, fine solid particle and high viscosity dust.
The combined duster of previous stage whirlwind or expansion chamber dedusting, secondary cloth bag generally adopts in China at present, though solve existing combustion straw power generation boiler smoke temperature height, flue dust flying dust proportion is little and is easy to generate the phenomenon of tempering, also obtained effect preferably.But the resistance of finding whole dust-removal system in practice increases, maintenance increases.This combined duster mainly has following characteristics: efficiency of dust collection is high, and the outlet discharging is stable, realization≤30mg/Nm3 discharging easily; Efficiency of dust collection is not subjected to the influence of dust characteristic; Collection to fine dust (particle diameter is the dust of PM10) can solve by the raising of filtrate technology; To capturing dioxin (Dioxin) and SO 2Deng pernicious gas to a certain degree effect is arranged also.
But combinations thereof formula deduster still has the following disadvantages: running resistance is big, is generally 1200-2500Pa, causes SR big, and the air-introduced machine power behind the deduster is big, the operating cost height; Previous stage whirlwind or expansion chamber cleaner floor space are big, investment cost increases; System complex increases operating cost, maintenance workload.
[utility model content]
Based on this, be necessary to provide a kind of efficiency of dust collection height and the low deduster of resistance.
A kind of deduster comprises the several chambers that boxboard surrounds, and each chamber comprises the bag-type dust collector that is arranged at its top.Each chamber also comprises the sparkproof device, and described sparkproof device is arranged at the inlet of each chamber of described deduster, and described sparkproof device comprises that some sparks that are arranged in parallel capture grid, and described spark captures grid and favours described boxboard.
Preferably, described spark captures grid and also comprises deep bead, and described deep bead is arranged at described spark and captures the rear of grid and be parallel to described boxboard.
Preferably, described spark captures on the grid and offers plurality of holes, and described spark captures grid and can be porous plate, stripe board or wire netting.
Preferably, described spark capture grid become 20 degree to 70 degree angles with described boxboard.
Preferably, each chamber also comprises the ash bucket that is arranged at its underpart.
Preferably, described bag-type dust collector comprises some filter bags.
Preferably, described bag-type dust collector also comprises the filter cage that is used to support described filter bag, and the quantity of described filter cage is corresponding with the quantity of described filter bag.
Preferably, described bag-type dust collector also comprises card, and the hole number of described card is corresponding with the number of described filter bag.
Preferably, described bag-type dust collector also comprises the injection system that is used for pulse dust cleaning.
The sparkproof device of above-mentioned deduster and bag-type dust collector organically combine in same flue gas zone, and no matter in the bulky grain collection process, still the spark that contains in elegant dust is in the transmission of filtering area, and the two can both interact well.Can improve efficiency of dust collection greatly, overcome the big problem of traditional deduster equipment resistance.
[description of drawings]
Fig. 1 is the schematic diagram of the utility model preferred embodiment deduster.
Fig. 2 is the schematic diagram that the spark of the deduster among Fig. 1 captures grid.
Fig. 3 flows to schematic diagram for the dust in the utility model deduster.
[specific embodiment]
Describe better embodiment of the present utility model in detail below in conjunction with accompanying drawing.
It is the partial sectional view of a chamber of preferred embodiment deduster of the present utility model shown in Fig. 1.Please in conjunction with consulting Fig. 2 and Fig. 3, this deduster comprises can comprise one or more chambers, and each chamber is surrounded by boxboard 1, and has sparkproof device and bag-type dust collector.The porch that whirlwind that the sparkproof device is alternative traditional or expansion chamber are arranged in each chamber.Bag-type dust collector is arranged at the top of each chamber.
The sparkproof device comprises that some sparks capture grid 2 and deep bead 3, and described spark captures grid 2 and is arranged on the porch in the mode with 1 one-tenth angle of inclination of boxboard, and deep bead 3 is parallel to boxboard 1 and is arranged at the rear that spark captures grid 2.In the illustrated embodiment, spark captures grid 2 and is arranged in parallel, and spends for 1 one-tenth 20 to 70 degree angles with boxboard.In other optional embodiment, the angle that spark captures between grid 2 and the boxboard 1 can be definite according to the characteristic of flue gas itself (for example, concentration etc.).The structure of spark capture grid 2 has some equally distributed holes 22 on the spark capture grid 2 as shown in Figure 2, and spark captures grid 2 and can be stripe board, porous plate or wire netting.
Bag-type dust collector comprises filtration system and injection system, and filtration system comprises filter bag, filter cage and card again respectively.The auxiliary filter bag of filter cage and card is fixed, and the filter cage supports filter bag and keeps definite shape, and the number of the hole on the card then changes according to the number of filter bag.Filter bag adopts pulse dust cleaning.
Flue gas is the direction inlet chamber shown in the arrow from Fig. 1, the zone by sparkproof device place at first after flue gas enters.Flue gas separates under the effect of gravity, and dust in flue gas bulky grain, spark directly are deposited in the ash bucket 4 of bottom, chamber.When deashing, the sparkproof device captures airborne dust effectively, thereby has reduced dust greatly and be entrained to possibility on the filter bag once more.
The sparkproof device of above-mentioned deduster and bag-type dust collector organically combine in same flue gas zone, and no matter in the bulky grain collection process, still the spark that contains in elegant dust is in the transmission of filtering area, and the two can both interact well.Can improve efficiency of dust collection greatly, overcome the big problem of traditional deduster equipment resistance.
The resistance of sack cleaner is generally at 1200~1500Pa, and the resistance of the tandem deduster of cloth bag generally can reduce below the 1400Pa behind previous stage whirlwind or the expansion chamber.Deduster of the present utility model is after filtration velocity improves, and SR is suitable with tandem electricity bag dust collector, even lower, can drop to about about 1000Pa.Its reason is that spark captures grid 2 and opened a lot of holes, flue gas and the dust of not collected by the sparkproof device will be flowed to filter bag by perforated panel, make orderly and loose the arranging of dust layer on filter bag surface, improved the gas permeability of dust layer, make deashing property better, thus the running resistance of effectively reducing.
Below deduster of the present utility model be applied as example explanation superiority of the present utility model in combustion in the straw boiler.Flue gas has temperature height, the high water content height of oxygen content, contains the CI element in the combustion straw boiler, flue dust flying dust proportion is little, per unit area concentration is high and be easy to generate characteristics such as tempering.After the sparkproof device of combustion stalk flue gas through placing the deduster porch intercepts, enter the high-efficiency cloth bag dust arrester that high temperature resistance, anti-oxidant treatment are housed again, filtered smoke gas enters atmosphere through chimney.Preposition sparkproof device can prevent the tempering of flue dust in the boiler effectively in the deduster, remove the bulky grain in the flue dust, reduce the dust concentration of filter bag, saving material 20%~40%, reduce dust pelletizing system energy consumption 30%~50%, is the inexorable trend of biomass-burning energy boiler dust remover development from now on.
Deduster of the present utility model is except that being applicable to the biomass boiler dedusting, also applicable to the dedusting of cement plant kiln head and tail, the fields such as dedusting of metallurgical works.
The utility model structure is unique novel, and efficiency of dust collection height, resistance are low, and operation and maintenance cost is few, is a kind of development prospect infant industry dedusting technology that has.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.

Claims (9)

1. deduster, comprise the several chambers that boxboard surrounds, each chamber comprises the bag-type dust collector that is arranged at its top, it is characterized in that: each chamber also comprises the sparkproof device, described sparkproof device is arranged at the inlet of each chamber of described deduster, described sparkproof device comprises that some sparks that are arranged in parallel capture grid, and described spark captures grid and favours described boxboard.
2. deduster according to claim 1 is characterized in that: described spark captures grid and also comprises deep bead, and described deep bead is arranged at described spark and captures the rear of grid and be parallel to described boxboard.
3. deduster according to claim 2 is characterized in that: described spark captures on the grid and offers plurality of holes, and described spark captures grid and can be porous plate, stripe board or wire netting.
4. according to each described deduster in the claim 1 to 3, it is characterized in that: described spark captures grid and becomes 20 degree to 70 degree angles with described boxboard.
5. deduster according to claim 4 is characterized in that: each chamber also comprises the ash bucket that is arranged at its underpart.
6. deduster according to claim 5 is characterized in that: described bag-type dust collector comprises some filter bags.
7. deduster according to claim 6 is characterized in that: described bag-type dust collector also comprises the filter cage that is used to support described filter bag, and the quantity of described filter cage is corresponding with the quantity of described filter bag.
8. deduster according to claim 7 is characterized in that: described bag-type dust collector also comprises card, and the hole number of described card is corresponding with the number of described filter bag.
9. deduster according to claim 8 is characterized in that: described bag-type dust collector also comprises the injection system that is used for pulse dust cleaning.
CN2009202893693U 2009-12-22 2009-12-22 Deduster Expired - Fee Related CN201618476U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009202893693U CN201618476U (en) 2009-12-22 2009-12-22 Deduster

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009202893693U CN201618476U (en) 2009-12-22 2009-12-22 Deduster

Publications (1)

Publication Number Publication Date
CN201618476U true CN201618476U (en) 2010-11-03

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CN2009202893693U Expired - Fee Related CN201618476U (en) 2009-12-22 2009-12-22 Deduster

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CN (1) CN201618476U (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103203149A (en) * 2013-03-19 2013-07-17 彭兰娟 Dedusting device for exhaust gas
CN104143247A (en) * 2013-05-08 2014-11-12 上海中船临港船舶装备有限公司 Alarm device for spontaneous combustion of dust remover and using method of alarm device
CN104315868A (en) * 2014-10-24 2015-01-28 无锡雪浪环境科技股份有限公司 Flue gas spark collecting and mixing device used in flue gas dust removal of electric furnace
CN104307300A (en) * 2014-11-14 2015-01-28 昆山嘉科环保设备有限公司 Spark catcher
CN104689652A (en) * 2015-03-18 2015-06-10 沈阳远大环境工程有限公司 Adjusting device for air intake field of bag filter
CN106166428A (en) * 2016-08-15 2016-11-30 江苏建筑职业技术学院 A kind of industrial dust purifies fire prevention hybrid system and method for work thereof

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103203149A (en) * 2013-03-19 2013-07-17 彭兰娟 Dedusting device for exhaust gas
CN104143247A (en) * 2013-05-08 2014-11-12 上海中船临港船舶装备有限公司 Alarm device for spontaneous combustion of dust remover and using method of alarm device
CN104315868A (en) * 2014-10-24 2015-01-28 无锡雪浪环境科技股份有限公司 Flue gas spark collecting and mixing device used in flue gas dust removal of electric furnace
CN104315868B (en) * 2014-10-24 2016-06-22 无锡雪浪环境科技股份有限公司 Flue gas Spark catcher blender in a kind of electric furnace flue gas dedusting
CN104307300A (en) * 2014-11-14 2015-01-28 昆山嘉科环保设备有限公司 Spark catcher
CN104689652A (en) * 2015-03-18 2015-06-10 沈阳远大环境工程有限公司 Adjusting device for air intake field of bag filter
CN104689652B (en) * 2015-03-18 2016-08-17 沈阳远大环境工程有限公司 Sack cleaner air intake flow field adjusting apparatus
CN106166428A (en) * 2016-08-15 2016-11-30 江苏建筑职业技术学院 A kind of industrial dust purifies fire prevention hybrid system and method for work thereof
CN106166428B (en) * 2016-08-15 2017-12-26 江苏建筑职业技术学院 A kind of industrial dust purification fire prevention hybrid system and its method of work

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20101103

Termination date: 20141222

EXPY Termination of patent right or utility model