CN101185929A - Rotating filter cartridge dust remover with ashing suction nozzle - Google Patents

Rotating filter cartridge dust remover with ashing suction nozzle Download PDF

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Publication number
CN101185929A
CN101185929A CNA2007101320045A CN200710132004A CN101185929A CN 101185929 A CN101185929 A CN 101185929A CN A2007101320045 A CNA2007101320045 A CN A2007101320045A CN 200710132004 A CN200710132004 A CN 200710132004A CN 101185929 A CN101185929 A CN 101185929A
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CN
China
Prior art keywords
filter
filter cylinder
suction nozzle
rotating
deashing
Prior art date
Application number
CNA2007101320045A
Other languages
Chinese (zh)
Inventor
王助良
颜学升
张敏
吉恒松
Original Assignee
江苏大学
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 江苏大学 filed Critical 江苏大学
Priority to CNA2007101320045A priority Critical patent/CN101185929A/en
Publication of CN101185929A publication Critical patent/CN101185929A/en

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Abstract

The invention relates to the technology of dust removal of industrial gases and recycling of particles, comprising a shell body of a dust collector, a gas distributor arranged in the shell body, a filter cylinder, a diaphragm, sealing parts of the diaphragm and the filter cylinder, an ash removal suction mouth positioned at the lateral side of the rotating filter cylinder, and an air outlet, a directional valve and an external dust removal gas dust collector that are sequentially connected together. The invention is characterized in that the filter cylinder is a rotating filter and provided with a filter cylinder rotation mechanism which is connected with the filter cylinder; the gas distributor, the suction mouth, the sealing parts of the diaphragm and the rotating filter cylinder and the air outlet are fixed. Or the filter cylinder is fixed and the suction mouth rotates in the filter cylinder. The suction dust removal can be divided into a single segment or a plurality of segments according to the length of the filter cylinder so as to form a suction mouth or a plurality of suction mouths of cyclic suction. The invention separates the filtration process of the dust collector from the dust removal process of the dust collection, which improves the reliability of the dust removal equipment, filters the gas with dusts continually and stably, collects dusts together and simplifies the operation process of the equipment.

Description

The rotating filter cartridge dust remover of ashing suction nozzle
Technical field
The present invention relates to the technology of industry gas dust removing, refer in particular to a kind of rotating filter cartridge dust remover of multistage ashing suction nozzle.
Background technology
Industry gas dust removing has the branch of high-temperature dust removal and low temperature dedusting, and its method has: cyclone dust removal (dividing single tube, multitube), wet dedusting, bag-type dusting, electrostatic precipitation and gravel bed filter.The technical process dedusting requires or the qualified discharge requirement because the restriction of dust-cleaning principle, the dusty gas after the cyclone dust collectors dedusting can not be satisfied in some occasions; Electric cleaner has specific (special) requirements to dust characteristic, gas temperature and water capacity; Sack cleaner has the requirement except that the temperature and humidity to dusty gas, and the cloth bag in the running produces fatigue rupture because of the frequent movement of filtration and deashing, and the maintenance difficulty is big, maintenance cycle is short, expense is high; Wet dedusting is easy to generate secondary pollution; And stratum granulosum just has remarkable advantages in special occasion use.
Filter cartridge dust remover has the function of sack cleaner, but the rate of filtration is big, and under equal operating condition, the ability of high temperature resistant, antifatigue destruction aspect is far above cloth bag, and it is big therefore to have disposal ability, the characteristics of long service life.Existing filter cartridge dust remover is owing to the restriction of purge mode (air knife deashing) and inner ash disposal structure, and influenced the operating characteristics of deduster: dust removal performance descends, and handles the gas ability and reduces the ash exhauster poor reliability.Because, air knife deashing to be gases at high pressure on the filter cylinder surface form tangential air knife air-flow (two filter cylinder one group), entrainment the dust on filter cylinder surface, after the dust that is entrainmented leaves the filter cylinder surface, massive particle falls under gravity into the deduster bottom, and all the other small and light particles are still gone around in deduster, and the people causes the initial concentration of air-flow constantly to increase, even efficiency of dust collection improves, the concentration of emission of air-flow also rises significantly; Because deashing gas flow big (and change with the variation of filter cylinder length) causes the effective processing capacity of deduster to descend; In addition, deduster negative pressure work, the blow-by of spiral ash discharge mechanism causes the ash discharge difficulty, and long-time running influences the reliability of equipment; Filter cylinder rotation drives by the air-flow after purifying, but speed can not control, and poor reliability can't be adjusted rotary speed and reaches the purpose of controlling efficiency of dust collection.
Summary of the invention
The purpose of this invention is to provide a kind of rotating filter cartridge dust remover that is used for dry filtration dedusting, ashing suction nozzle, because the filter cylinder rotary speed is fast, cleaning cycle is short, and the rate of filtration of deduster is big, and therefore, the device processes ability of unit volume is strong; In addition, deduster efficiency of dust collection height, reliable, maintenance is easy, maintenance cost is low.
Rotating filter cartridge dust remover (≤250 ℃) under conventional temperature adopts filtrate (identical with sack cleaner) to filter, and at high temperature (≤400 ℃) adopt little order to count the filtering material filtration of stainless steel cloth and small size particle layer composition.Adopt the suction nozzle segmentation air-breathing deashing that circulates at the outer surface of filter cylinder.The filter cylinder rotation is filtered and deashing carries out simultaneously.
Realize the technical scheme of above-mentioned purpose:
Dust pelletizing system comprise gas distributor, rotating filter cartridge, dividing plate, dividing plate and rotating filter cartridge in the deduster housing, housing seal member, be positioned at the deashing suction nozzle in the rotating filter cartridge outside, the filter cylinder rotating mechanism that links to each other with filter cylinder, the gas outlet of Xiang Lianing, reversal valve and outside deashing dedusting apparatus successively, the seal member, gas outlet etc. that it is characterized in that gas distributor, suction nozzle, dividing plate and rotating filter cartridge maintain static, the filter cylinder rotation;
The deashing suction nozzle can be divided into single hop or multistage near the filter cylinder filter material surface according to filter cylinder length.The suction nozzle segmentation forms a plurality of suction nozzles, adopts circulation air-breathing, that is: the air-breathing deashing of first suction nozzle, and filter cylinder rotates a circle, and second suction nozzle is air-breathing, and filter cylinder rotates a circle again, so analogizes, and realizes filter cylinder segmentation circulation deashing, is intended to reduce the deashing gas flow.
It is fixing different that technique scheme also can be set to filter cylinder, and suction nozzle rotates in cartridge interior, and air-breathing deashing helps design, installation and the making of equipment, reduces the power consumption that filter cylinder rotates.
According to relative motion principle, said apparatus comprises following two kinds of situations: 1. the deashing suction nozzle maintains static, filter cylinder pivots, and the deashing suction nozzle is at filter cylinder outer surface or the air-breathing deashing of inner surface, and filter cylinder rotates a circle or a few, finishes the one-time surface deashing.2. the deashing suction nozzle pivots, and filter cylinder maintains static, and the deashing suction nozzle is at filter cylinder inner surface or the air-breathing deashing of outer surface, and filter cylinder rotates one and encloses or a few, finishes the one-time surface deashing.
The filter cylinder filtrate has two kinds of forms: filter cloth and stratum granulosum filter screen.Filter cloth comprises the filtrate of weaving cotton cloth, acupuncture filter cloth, compound filter cloth and the glass filter cloth etc. of relevant material; The stratum granulosum filter screen is the stratum granulosum filtrate that the quartz sand particle layer of two-layer stainless steel cloth and 10~30 μ m is formed.As: filter boiler smoke, 200 ℃ of temperature, dust concentration 20000mg/m 3, using the glass fibre filtrate, the deduster concentration of emission is lower than 30mg/m 3Cotton, hair or cotton synthetic fibre, polyster fibre filtrate etc. are used in the cleaning unit dedusting, and the deduster concentration of emission is lower than 20mg/m3; Reclaim the particulate matter in 250~400 ℃ of process gas, use the stratum granulosum filter screen, the rate of recovery reaches 99.2%.
The course of work of the present invention is as follows:
Dusty gas is evenly distributed to deduster filter cylinder surface everywhere through distributor, under action of pressure, air-flow passes the filter cylinder filtrate, because under the effect of various effects such as the diffusion of filtrate fiber, interception, inertia-gravity, it is inner and surperficial that dust is stayed filtrate, gas becomes clean gas, discharges deduster, reaches the dedusting purpose; Filtrate the dust deposit inner and surface arrives to a certain degree, and the resistance that the filter cylinder filtrate produces reaches setting value, and the filter cylinder filter material surface needs air-breathing deashing.
The deashing suction nozzle maintains static, and near the filter cylinder surface, by bleeding of trailing plants thatch blower fan, produces negative inspiratory pressure near suction nozzle, and the dust on cartridge interior and surface is siphoned away by inspiratory airflow, and the outside deduster of delivering to deashing gas by pipeline purifies; The filter cylinder rotation, ashing suction nozzle is sequentially passed through on the gas surface, and like this, filter cylinder rotates a circle, and its surperficial deashing is once.If the deashing suction nozzle is divided into the n section, become n suction nozzle, air-breathing to each suction nozzle in turn by flow switch, filter cylinder rotates the n circle, and its surperficial deashing once like this, further reduces the deashing gas flow.Because deashing process is single, the operational reliability of filter cylinder improves greatly.
The outside deduster that the dust-contained airflow of suction nozzle suction is sent into dust pelletizing system by reversal valve is handled; Rotating mechanism control filter cylinder rotating speed, the strainability and the cleaning cycle of adjusting deduster; Because rate of air sucked in required is less, when the big flow deduster of design, deashing mechanism is simple, easy to operate.
Deashing gas is delivered to outside deduster purified treatment through reversal valve, helps reducing significantly deashing tolerance, reduces investment cost, the operating cost of deashing gas purifying equipment, the operating process of simplified apparatus, the reliability of raising equipment.
The present invention is mainly used in the gas dry method dust, as fire coal boiler fume dedusting, kiln gas dedusting, furnace cupola flue gas ash removal, coke oven coal flue gas ash removal, coal separation system dust removing etc., and the recovery of dust-laden particle in the air-flow.Can be used for removing the pernicious gas composition in the gas, as sneaking into the adsorbent (as active carbon) of certain particle size, the H in the adsorbable gas before entering deduster at gas 2S, SO 2Etc. harmful substance, stayed the filter cylinder surface behind the media filtration, removed from the filter cylinder surface by suction nozzle then, separate back regeneration in the deduster outside by selection by winnowing, recycle.
Advantage of the present invention:
(1) the deduster assembly is few, and deashing process is single, and the equipment reliability of operation increases, maintenance, easy to maintenance, quick.Filtrate does not exist fatigue damage factor, long service life.
(2) deashing speed is fast, cleaning cycle short, can prevent bibulous dust adhesion.
(3) a plurality of suction nozzles air-breathing deashing that circulates reduces the investment and the operating cost of ash removing equipment significantly.
(4) disposal ability of unit volume equipment is big.The rate of filtration can reach 0.4m/s, much larger than the rate of filtration of sack cleaner.
(5) adopt metallic fiber and dust layer structure, can solve high-temperature dust removal problem etc.
(6) filtrate cleans conveniently, can design by the manhole cleaning filtrate of inwardly spraying water, and guarantees the strainability of filtrate.
Description of drawings
Fig. 1 structural representation of the present invention
Fig. 2 ash-clearing structure schematic diagram of the present invention
Fig. 3 filter element schematic diagram of the present invention
Fig. 4 process flow diagram of the present invention
1. dusty gas import distributor 2. filter cylinders 3. seals 4. dividing plates 5. bleeding points 6,7,8. air intake duct 9. deashing suction nozzles 10. deduster housings 11. turning cylinders 12. tumblers 13. air-introduced machines 14. reversal valves 15. deashing gas cleaning plants 16. trailing plants thatch blower fans 17. support frames 18. silk screens 19. filtrates 20. silk screens
The specific embodiment
The invention process as shown in Figure 1, comprise dusty gas air inlet distributor 1, after dusty gas enters deduster, because the effect of exhaust fan or air blast, at the outer surface of rotating filter cartridge 2 to inner filtration, clean gas after the filtration enters Purge gas exhaust outlet 5 through dividing plate 4 center-aisles, and rotating filter cartridge 2 and dividing plate 4 adopt seal 3 sealings, and pneumatic tumbler 12 drives filter cylinder by turning cylinder 11 and rotates.
As shown in Figure 2, deashing suction nozzle 9 maintains static, the filter cylinder rotation, and the filter cylinder surface dirt siphons away by deashing suction nozzle 9, by air intake duct 8 deashing gas is delivered to outside deashing gas cleaning plant 15 and handles.
As shown in Figure 3, the filter cylinder filter course is made up of four parts: support frame 17, stainless steel cloth 18, filtrate 19, stainless steel cloth 20.The steel wire diameter of stainless steel cloth 18 is bigger, guarantees that the filter cylinder outer surface is shaped; The order number of stainless steel cloth 20 is bigger, and the protection filtrate is subjected to the deashing suction nozzle when deashing accident scratches.
The present invention is used for boiler smoke dust collecting process flow chart as shown in Figure 4.The filter cylinder filtrate is determined according to the boiler smoke exhaust temperature, adopts high temperature resistant Nomex, Industrial Boiler to adopt the woven cloth of glass fibre etc. as station boiler.Under the effect of air-introduced machine 13, ash-laden gas enters deduster, through the filtration of rotating filter cartridge 2, purifies flue gas and discharges from the deduster outlet, sends into chimney through air-introduced machine 13.Air-introduced machine 16 air inducing, 9 places are air-breathing at suction nozzle, take away the dust on cartridge interior and surface, deliver to deashing gas cleaning plant 15 by air intake duct 6,7,8, the deashing gas emptying after the purification; If filter cylinder is long, the deashing gas flow is bigger, then make air intake duct 6,7,8 circulations air-breathing, by reversal valve 14 commutations, the reversal interval time of reversal valve formulates according to the rotating speed of filter cylinder, and promptly air intake duct 6 is logical, carries out air-breathing deashing, 7,8 is obstructed, after filter cylinder rotates a circle or a few circle, reversal valve 14 commutations, air intake duct 7 is logical, carry out air-breathing deashing, 6,7 is obstructed, so circulation, and purpose is to reduce the deashing gas flow.
The filter cylinder media filtration speed 0.3~0.5m/s of present embodiment, filter cylinder rotating speed 0.5~10rpm, air-flow dust content 10000~50000mg/m 3, the dust exhausting concentration 30~50mg/m after the dedusting 3, efficiency of dust collection is more than 99%, dust remover resistance 800~1200Pa.

Claims (4)

1. the rotating filter cartridge dust remover of ashing suction nozzle, it comprise gas distributor, filter cylinder, dividing plate, dividing plate and filter cylinder in the deduster housing, housing seal member, be positioned at the deashing suction nozzle in the rotating filter cartridge outside, the gas outlet of Xiang Lianing, outside deashing dedusting apparatus successively, it is characterized in that filter cylinder is a rotating filter cartridge, and be provided with the filter cylinder rotating mechanism that links to each other with filter cylinder, and the seal member of gas distributor, suction nozzle, dividing plate and rotating filter cartridge, gas outlet maintain static all.
2. the rotating filter cartridge dust remover of ashing suction nozzle according to claim 1, it is characterized in that the deashing suction nozzle is near the filter cylinder filter material surface, be divided into single hop or multistage according to filter cylinder length, form one or more air-breathing suction nozzles of circulation, and be provided with the reversal valve that matches with a plurality of suction nozzles.
3. the rotating filter cartridge dust remover of ashing suction nozzle according to claim 1 is characterized in that described filter cylinder is fixing different, and suction nozzle rotates in cartridge interior.
4. according to the rotating filter cartridge dust remover of claim 1,3 described ashing suction nozzles, it is characterized in that the filter cylinder filtrate has two kinds of forms: filter cloth and stratum granulosum filter screen, filter cloth comprise the filtrate of weaving cotton cloth, acupuncture filter cloth, compound filter cloth and the glass filter cloth of relevant material; The stratum granulosum filter screen is the stratum granulosum filtrate that the quartz sand particle layer of two-layer stainless steel cloth and 10~30 μ m is formed.
CNA2007101320045A 2007-09-06 2007-09-06 Rotating filter cartridge dust remover with ashing suction nozzle CN101185929A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2007101320045A CN101185929A (en) 2007-09-06 2007-09-06 Rotating filter cartridge dust remover with ashing suction nozzle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2007101320045A CN101185929A (en) 2007-09-06 2007-09-06 Rotating filter cartridge dust remover with ashing suction nozzle

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Publication Number Publication Date
CN101185929A true CN101185929A (en) 2008-05-28

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102228769A (en) * 2011-05-30 2011-11-02 江苏大学 Filter cartridge dust remover with automatical and continuous dust removal function
CN102734888A (en) * 2012-03-06 2012-10-17 曾罗麟 Wind and dust prevention ventilator
CN105731394A (en) * 2015-12-31 2016-07-06 安阳市岷山有色金属有限责任公司 Refined sulfuric acid preparation device and preparation method thereof
CN105727641A (en) * 2016-04-16 2016-07-06 马鞍山明创环保科技有限公司 Self-cleaning air filter
CN105749649A (en) * 2016-04-21 2016-07-13 安徽工业大学 Continuous dust removal regeneration filtration dust remover
CN106422566A (en) * 2016-09-13 2017-02-22 成都创慧科达科技有限公司 Rotary bag type dust collector
CN106902579A (en) * 2017-03-23 2017-06-30 周海兵 Filter with screen pack dust fall
CN108554119A (en) * 2018-05-24 2018-09-21 李雪 A kind of calcium hypochlorite production exhaust gas processing device
CN108854326A (en) * 2018-08-08 2018-11-23 程海骁 A kind of air contaminant treatment dust-extraction unit
CN109603395A (en) * 2019-01-09 2019-04-12 李宣睿 A kind of buffer-type Environmental-protecting dust-removing device

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102228769A (en) * 2011-05-30 2011-11-02 江苏大学 Filter cartridge dust remover with automatical and continuous dust removal function
CN102734888B (en) * 2012-03-06 2015-12-09 广州市家泰环境科技有限公司 Windproof sand and dust ventilator
CN102734888A (en) * 2012-03-06 2012-10-17 曾罗麟 Wind and dust prevention ventilator
CN105731394A (en) * 2015-12-31 2016-07-06 安阳市岷山有色金属有限责任公司 Refined sulfuric acid preparation device and preparation method thereof
CN105727641A (en) * 2016-04-16 2016-07-06 马鞍山明创环保科技有限公司 Self-cleaning air filter
CN105749649A (en) * 2016-04-21 2016-07-13 安徽工业大学 Continuous dust removal regeneration filtration dust remover
CN106422566A (en) * 2016-09-13 2017-02-22 成都创慧科达科技有限公司 Rotary bag type dust collector
CN106902579B (en) * 2017-03-23 2019-02-15 周海兵 Filter device with filter screen dust fall
CN106902579A (en) * 2017-03-23 2017-06-30 周海兵 Filter with screen pack dust fall
CN108554119A (en) * 2018-05-24 2018-09-21 李雪 A kind of calcium hypochlorite production exhaust gas processing device
CN108854326A (en) * 2018-08-08 2018-11-23 程海骁 A kind of air contaminant treatment dust-extraction unit
CN108854326B (en) * 2018-08-08 2021-03-16 常熟久安环境安全科技有限公司 Dust collector for atmospheric pollution control
CN109603395A (en) * 2019-01-09 2019-04-12 李宣睿 A kind of buffer-type Environmental-protecting dust-removing device
CN109603395B (en) * 2019-01-09 2021-03-23 李宣睿 Buffering formula environmental protection dust remover

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