CN203540242U - Separating pulse dust remover of high concentration dust - Google Patents

Separating pulse dust remover of high concentration dust Download PDF

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Publication number
CN203540242U
CN203540242U CN201320694614.5U CN201320694614U CN203540242U CN 203540242 U CN203540242 U CN 203540242U CN 201320694614 U CN201320694614 U CN 201320694614U CN 203540242 U CN203540242 U CN 203540242U
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CN
China
Prior art keywords
filter bag
spiral case
pulse
pulse dust
dust remover
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
CN201320694614.5U
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Chinese (zh)
Inventor
李建军
吴正东
朱达权
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JIANGSU XURI METALLURGY ENVIRONMENTAL PROTECTION EQUIPMENT PLANT
Original Assignee
JIANGSU XURI METALLURGY ENVIRONMENTAL PROTECTION EQUIPMENT PLANT
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Priority to CN201320694614.5U priority Critical patent/CN203540242U/en
Application granted granted Critical
Publication of CN203540242U publication Critical patent/CN203540242U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a separating pulse dust remover of high concentration dust. The separating pulse dust remover comprises an equipment bracket, a circular spiral case, eddy-wind, a conical ash bucket, a rotary positioning low-pressure pulse dust collector, a purifying chamber and a numerical control locating device, wherein the circular spiral case is horizontally arranged on the equipment bracket; a tangential air inlet and a shunt opening are formed on the circular spiral case; the shunt opening is arranged at the top of the tangential air inlet; the shunt opening is connected with the eddy-wind through a pipeline; the eddy-wind is vertically arranged; an ash discharge hole is formed at the bottom of the eddy-wind; an arc fixing blade is arranged inside the circular ash bucket; the circular ash bucket is arranged below the circular spiral case and arranged on the bracket; a reflecting screen is arranged inside the conical ash bucket; an ash discharge hole is formed at the bottom of the conical ash bucket; the rotary positioning low-pressure pulse dust collector is arranged inside the circular spiral case; a partition plate and a tube nest for filtering a filter bag are arranged inside the rotary positioning low-pressure pulse dust collector; the filter bag is arranged on the tube nest; the purifying chamber is arranged above the tube nest for fixing the filter bag; a universal rotating shaft, a shielding partition plate and a shielding nozzle box are arranged inside the purifying chamber; a wind collecting and discharge hole is formed at the external part of the purifying chamber; the outlet of the wind collecting and discharge hoe is downward. By adopting the separating pulse dust remover, the defects of dust-gas separation of a positive-pressure back suction ash removing and transporting system are overcome, and the separating pulse dust remover is good in separating effect, convenient to maintain and low in cost.

Description

A kind of high concentrate dust discrete pulse deduster
Technical field
The utility model relates to the dust separation of the air-transport system of dust, specifically relates to a kind of system dust removing device that adopts negative pressure ash conveyer, belongs to environmental protection equipment technical field.
Background technology
Existing ferroalloy " industrial silicon, 75 silicon " smelting mine heat furnace dust treatment recovery system, the technology that extensively adopts malleation opposite inhale cleaning dust and ash-transmission system to carry out filter bag regeneration, and the separated whirlwind that mostly utilizes of the dirt gas of opposite inhale cleaning dust and ash-transmission system is as dirt air separation, and the maximum separated dust approximately 80% of cyclone separator, it is only fed back in deduster above containing the lighter thin dirt of the less quality of volume, regathers.This imperceptible " dirt " has increased the obstruction probability of cloth bag undoubtedly, increases filtration resistance.Here it is, and domestic most malleation dedusters are all in the basic reason of moving under high-drag situation.When serious, cause deduster cisco unity malfunction, reduced the service efficiency of deduster.
Sack cleaner is one of the most efficient cleaner at present, and deashing is the key of sack cleaner operation steady in a long-term, and deashing influence factor is numerous, complicated and changeable.
Filter bag is sack cleaner core, media regeneration is the key of its stable operation, ash-clearing technology directly affects service life and the performance of sack cleaner, less deashing intensity can not realize deashing preferably, excessive deashing intensity (high pressure) is easily accelerated again filter bag wearing and tearing, affects the service life of filter bag.Deashing is not good at causing the power of regeneration of filter bag poor, and flue dust covers or penetrates in filter bag fibrage and is difficult to remove, and causes the strainability of filter bag sharply to decline, and as filter bag just occurs to stick with paste bag in a short time, system running resistance is excessive etc.
The filter bag of sack cleaner is flexible media, and dust layer is realized deashing under the effects such as inertia force and back suction air-flow.In the expansion process of filter bag, airflow kinetic energy is converted into the inertia force of filter bag (containing dust layer) and consumes energy.For the larger filter bag of elasticity, inertia energy plays a leading role in deashing process, and general lower pressure and less air-flow can be realized deashing; For the weak filter bag of elasticity, air-flow plays a leading role, and higher pressure and larger air-flow just can be realized deashing.
In opposite inhale cleaning dust system, back draught pressure peak and back draught rate of pressure rise are the characterisitic parameters of weighing cleaning efficiency, (as larger in filter medium resistance coefficient) under certain condition, utilizes the climbing speed of flow quality peak flow and mass flow to weigh cleaning efficiency and has identical meaning.
Utility model content
The purpose of this utility model is to provide a kind of high concentrate dust discrete pulse deduster, and this product overcomes the separated deficiency of dirt gas of malleation opposite inhale cleaning dust and ash-transmission system, and good separating effect, easy to maintenance, cost is low.
The purpose of this utility model is achieved through the following technical solutions, a high concentrate dust discrete pulse deduster, comprises equipment supporter, annular spiral case, whirly, circular cone ash bucket, rotation location low pressure pulse dust remover, clean room and numerical control positioning device;
On described equipment supporter, be horizontally disposed with annular spiral case, annular spiral case is provided with tangent air inlet and diffluence pass, and diffluence pass is arranged on tangent air inlet top, and diffluence pass connects described whirly by pipeline, whirly vertically arranges, and whirly bottom is provided with ash discharging hole; In annular spiral case, be provided with arc fixed blade; Whirly and annular spiral case form twin-stage spiral device;
Described circular cone ash bucket is arranged on annular spiral case below and is arranged on support, in circular cone ash bucket, is provided with radiation shield, and circular cone ash bucket bottom is provided with ash discharging hole;
Described rotation location low pressure pulse dust remover is arranged in annular spiral case, is provided with subregion dividing plate and the fixing card of filter bag in the low pressure pulse dust remover of rotation location; Subregion dividing plate radially distributes centered by the low pressure pulse dust remover central tube of rotation location, and subregion dividing plate is cut apart rotation location low pressure pulse dust remover to form action of low-voltage pulse filter bag chamber, rotation location; Filter bag is installed on card;
Described clean room is arranged on the card top of described fixedly filter bag, is provided with Universal rotary rotating shaft, shielding demarcation strip and shielding nozzle box in clean room; Universal rotary rotating shaft is vertically mounted on card by rotating shaft holder, and Universal rotary shaft extension goes out outside clean room and numerical control positioning device is installed; On described rotating shaft holder, by cantilever pipeline, connect described shielding nozzle box, numerical control positioning device control connection shielding nozzle box, rotating shaft holder below is provided with pulse blowing pipe, and pulse blowing pipe is provided with pulse air storage bag and pulse valve; Described shielding demarcation strip radially distributes centered by Universal rotary rotating shaft; Outside, clean room is provided with collection wind air outlet, collects the mouth down that of wind air outlet.
Further, described radiation shield is circular cone radiation shield.
Further, the number of described subregion dividing plate is 6.
Further, top, described clean room is provided with the manhole for installing and overhauling.
Further, described fixedly filter bag card is provided with filter bag installing hole, on filter bag installing hole, filter bag is installed.
Further, described pulse valve is heavy caliber pulse valve.
Compared with prior art, the utlity model has following beneficial effect:
The first, high concentrate dust discrete pulse deduster of the present invention is comprised of twin-stage spiral device, rotation location low pressure pulse dust remover, is the dust arrester of inertial dust separator and cyclone dust collectors combination.
The second, twin-stage spiral has played that to make to enter the air-flow of bag chamber more even, and mechanical movement resistance is low; Avoided air inlet cloth wind uneven.Spiral air inlet makes to enter the flow velocity of bag chamber lower than 1.4m/s, has both accelerated coarse grained pre-separation, has guaranteed again whole flow uniform distribution before flue gas enters filter bag bundle at the intrafascicular heart of filter bag and, has made the filtration load of each filter bag even around; Lower flow velocity has reduced the erosive wear of dust to filter bag, has extended the service life of filter bag, has reduced operating cost;
The 3rd, the beneficial effects of the utility model are the operation ratios that obviously improved equipment, have reduced the fault rate of main dust arrester, have reduced maintenance rate and the operating cost of equipment; High concentrate dust discrete pulse deduster is the dust arrester of inertial dust separator and cyclone dust collectors combination;
The 4th, the utility model takes full advantage of twin-stage spiral, tangent air inlet, arc fixed blade, large garden cone ash bucket, radiation shield, whirly, twin-stage spiral, arc fixed blade, arranging of arc fixed blade play an important role to twin-stage spiral, the concentrating and separating effect that it not only improves spiral case as louvre blade deduster, also play air-flow guide effect, make it rationalization's air-flow and reduce the pressure loss of deduster;
The 5th, inverted cone ash bucket Nei You garden cone radiation shield, radiation shield has advantages of the efficiency of dust collection of raising, reduces crushing.
Accompanying drawing explanation
Fig. 1 is the utility model high concentrate dust discrete pulse deduster structural representation;
Fig. 2 is the utility model high concentrate dust discrete pulse deduster twin-stage spiral apparatus structure schematic diagram;
Fig. 3 is the structural representation of the rotation location low pressure pulse dust remover of the utility model high concentrate dust discrete pulse deduster;
Fig. 4 is the plan structure schematic diagram of the utility model high concentrate dust discrete pulse deduster rotation location low pressure pulse dust remover;
Fig. 5 is the utility model high concentrate dust discrete pulse udst separation chamber profile;
1 equipment supporter, 2 annular spiral cases, 3 rotation location low pressure pulse dust removers, 4 tangent air inlets, 5 collection wind air outlets, 6 arc fixed blades, 7 circular cone ash buckets, 8 radiation shields, 9 whirlys, 10 action of low-voltage pulse filter bag chambers, rotation location, 11 subregion dividing plates, 12 clean rooms, 13 cards, 14 shielding demarcation strips, 15 rotating shaft holders, 16 shielding nozzle boxs, 17 numerical control positioning devices, 18 manholes, 20 Universal rotary rotating shafts, 21 ash discharging holes, 22 filter bags in figure.
The specific embodiment
Below with reference to accompanying drawing, the utility model is described in detail.
As Figure 1-5, a kind of high concentrate dust discrete pulse deduster, comprises equipment supporter 1, annular spiral case 2, whirly 9, circular cone ash bucket 7, rotation location low pressure pulse dust remover 3, purifies Room 12 and numerical control positioning device 17.
On equipment supporter 1, be horizontally disposed with annular spiral case 2, annular spiral case 2 is provided with tangent air inlet 4 and diffluence pass.Diffluence pass is arranged on tangent air inlet 4 tops, and diffluence pass connects whirly 9 by pipeline, and whirly 9 vertically arranges, and whirly 9 bottoms are provided with ash discharging hole 21.In annular spiral case 2, be provided with arc fixed blade 6.Whirly 9 and annular spiral case 2 form twin-stage spiral device.
Circular cone ash bucket 7 is arranged on annular spiral case 2 belows and is arranged on equipment supporter 1, is provided with radiation shield 8 in circular cone ash bucket 7, the preferred circular cone radiation shield of radiation shield 8.Circular cone ash bucket 7 bottoms are provided with ash discharging hole 21.
Rotation location low pressure pulse dust remover 3 is arranged in annular spiral case 2, is provided with subregion dividing plate 11 and the fixing card 13 of filter bag in the low pressure pulse dust remover 3 of rotation location.Subregion dividing plate 11 radially distributes centered by the low pressure pulse dust remover central tube of rotation location, and subregion dividing plate 11 is cut apart rotation location low pressure pulse dust remover to form action of low-voltage pulse filter bag chamber 10, rotation location.Preferably 6 of the numbers of subregion dividing plate 11.Card 13 is provided with filter bag installing hole, on filter bag installing hole, filter bag is installed.On card 13, filter bag is installed.
Clean room 12 is arranged on fixedly card 13 tops of filter bag, is provided with Universal rotary rotating shaft 20, shielding demarcation strip 14 and shielding nozzle box 16 in clean room 12.Universal rotary rotating shaft 20 is vertically mounted on card 13 by rotating shaft holder 15, and Universal rotary rotating shaft 20 is stretched out outside clean room 12 and numerical control positioning device 17 is installed.On rotating shaft holder 15, by cantilever pipeline, connect shielding nozzle box 16, numerical control positioning device 17 control connection shielding nozzle boxs 16.Rotating shaft holder 15 belows are provided with pulse blowing pipe, and pulse blowing pipe is provided with pulse air storage bag and pulse valve.Pulse valve is heavy caliber pulse valve.
Shielding demarcation strip 15 radially distributes centered by Universal rotary rotating shaft 20.
12 outsides, clean room are provided with collection wind air outlet 5, collect the mouth down that of wind air outlet 5.12 tops, clean room are provided with the manhole 18 for installing and overhauling.
In the low pressure pulse dust remover 3 of rotation location, be provided with subregion dividing plate 11 and the fixing card 13 of filter bag, filter bag is arranged on card, and rotating shaft holder 15 is installed on card.
Card Shang13Shi clean room 12, on rotating shaft holder, 15 use cantalever tubes join with shielding nozzle box 16, and the axle center on rotating shaft holder 15 is connected with the numerical control positioning device 17 outside universal drive shaft 20Yu clean room 12.In clean room, be also provided with shielding demarcation strip, shielding nozzle box, shielding demarcation strip radially distributes centered by clean room's central shaft, shielding nozzle box 16 is arranged in Universal rotary rotating shaft 20 rotationally by cantilever pipeline, numerical control positioning device 17 control connection shielding nozzle boxs 16.
Big cloth dedustion collector with positive pressure device operation principle: the dust of mineral hot furnace is pressed into large sack cleaner through air-introduced machine outlet.Along with large sack cleaner operation, large cloth dust remover resistance increases, and at this moment must recover filter bag strainability to filter bag regeneration, and recovering filter bag strainability is to utilize opposite inhale cleaning dust technology.Must discharge large sack cleaner simultaneously and collect the dust that gets off, the collection ash silo that the dust of discharge is transported to appointment by conveyer is processed.Dust is carried and is realized by strength.And opposite inhale cleaning dust is also realized by strength, so just can realize opposite inhale cleaning dust and defeated ash by a negative-pressure pneumatic system.
The dust that opposite inhale cleaning dust gets off through induced duct enter twin-stage spiral device spiral case tangent air inlet 4, with the speed of 18~25m/s, tangentially enter the large spiral case with fixed blade, in spiral case, form strong rotatablely moving, grit is separated to shell wall under centrifugal action, account for 10~20% ash-laden gas scale of constructions with being concentrated separated grit, through diffluence pass place, enter twin-stage spiral device whirly 9.6 pairs of gases of arc fixed blade in twin-stage spiral have guide effect, have reduced resistance, are also one group of louvered dedusters simultaneously.Dusty gas is the surface due to the effect impact blades of inertia force at grit when the arc fixed blade 6, and it is separated to spiral case wall to be rebounded out, most of grit produces centrifugal force by the break-in of air-flow and has carried out separation, gas is guided to large circular cone ash bucket 7 through arc fixed blade gap, after dust enters ash bucket, the speed of service is slack-off, big dust particle is deposited under the radiation shield in ash bucket 7, part dust is indoor at the filter bag of rotation location low pressure pulse dust remover 3 with air-flow disperse, and by filter bag detention at filter bag outer surface, purify air and from filter bag outlet, enter clean room 12 through bag wall, by air-introduced machine, extract out emptying.
Along with filtering the carrying out of operating mode, the resistance of filter bag strengthens gradually, when reaching on resistance, prescribe a time limit, pressure difference transmitter sends signal, start numerical control positioning device 17, numerical control positioning device 17 will shield nozzle box 16 and fixes on certain subregion and shield this subregion, cut off starting impulse valve after this subregion filtered airflow, to this subregion jetting deashing.Thereby change filter bag internal pressure operating mode, cause filter bag vibration, shake off laying dust.By controlling the keying of numerical control positioning device 17 and pulse valve, make filter bag occur for several times swollen flat, filter bag outer wall dust releasing, reaches and removes the blocked up dust object of filter bag.Press said process, the switching of each subregion realizes by shielding nozzle box 16, and the circumference of working just completes a cleaning cycle.

Claims (6)

1. a high concentrate dust discrete pulse deduster, is characterized in that, described deduster comprises equipment supporter, annular spiral case, whirly, circular cone ash bucket, rotation location low pressure pulse dust remover, clean room and numerical control positioning device;
On described equipment supporter, be horizontally disposed with annular spiral case, annular spiral case is provided with tangent air inlet and diffluence pass, and diffluence pass is arranged on tangent air inlet top, and diffluence pass connects described whirly by pipeline, whirly vertically arranges, and whirly bottom is provided with ash discharging hole; In annular spiral case, be provided with arc fixed blade; Whirly and annular spiral case form twin-stage spiral device;
Described circular cone ash bucket is arranged on annular spiral case below and is arranged on support, in circular cone ash bucket, is provided with radiation shield, and circular cone ash bucket bottom is provided with ash discharging hole;
Described rotation location low pressure pulse dust remover is arranged in annular spiral case, is provided with subregion dividing plate and the fixing card of filter bag in the low pressure pulse dust remover of rotation location; Subregion dividing plate radially distributes centered by the low pressure pulse dust remover central tube of rotation location, and subregion dividing plate is cut apart rotation location low pressure pulse dust remover to form action of low-voltage pulse filter bag chamber, rotation location; Filter bag is installed on card;
Described clean room is arranged on the card top of described fixedly filter bag, is provided with Universal rotary rotating shaft, shielding demarcation strip and shielding nozzle box in clean room; Universal rotary rotating shaft is vertically mounted on card by rotating shaft holder, and Universal rotary shaft extension goes out outside clean room and numerical control positioning device is installed; On described rotating shaft holder, by cantilever pipeline, connect described shielding nozzle box, numerical control positioning device control connection shielding nozzle box, rotating shaft holder below is provided with pulse blowing pipe, and pulse blowing pipe is provided with pulse air storage bag and pulse valve; Described shielding demarcation strip radially distributes centered by Universal rotary rotating shaft; Outside, clean room is provided with collection wind air outlet, collects the mouth down that of wind air outlet.
2. deduster according to claim 1, is characterized in that, described radiation shield is circular cone radiation shield.
3. deduster according to claim 2, is characterized in that, the number of described subregion dividing plate is 6.
4. deduster according to claim 3, is characterized in that, top, described clean room is provided with the manhole for installing and overhauling.
5. deduster according to claim 4, is characterized in that, described fixedly filter bag card is provided with filter bag installing hole, on filter bag installing hole, filter bag is installed.
6. deduster according to claim 5, is characterized in that, described pulse valve is heavy caliber pulse valve.
CN201320694614.5U 2013-11-06 2013-11-06 Separating pulse dust remover of high concentration dust Expired - Fee Related CN203540242U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320694614.5U CN203540242U (en) 2013-11-06 2013-11-06 Separating pulse dust remover of high concentration dust

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103977956A (en) * 2014-04-29 2014-08-13 首钢总公司 Device and method for separating harmful elements such as alkali and zinc elements in dry dedusting ash of blast furnace
CN105797505A (en) * 2016-05-28 2016-07-27 许昌东方热力有限公司 Smoke purifying device for thermal power plant
CN106139810A (en) * 2016-08-31 2016-11-23 合肥合意环保科技工程有限公司 A kind of self-rotary filter for mineral hot furnace flue gas cleaning

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103977956A (en) * 2014-04-29 2014-08-13 首钢总公司 Device and method for separating harmful elements such as alkali and zinc elements in dry dedusting ash of blast furnace
CN103977956B (en) * 2014-04-29 2016-06-29 首钢总公司 A kind of separate the apparatus and method of the harmful element such as alkali zinc in blast furnace dry method dust ash
CN105797505A (en) * 2016-05-28 2016-07-27 许昌东方热力有限公司 Smoke purifying device for thermal power plant
CN106139810A (en) * 2016-08-31 2016-11-23 合肥合意环保科技工程有限公司 A kind of self-rotary filter for mineral hot furnace flue gas cleaning

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140416

Termination date: 20171106