CN104275051B - Neat stress branch chamber back-blowing bag type dust collector - Google Patents

Neat stress branch chamber back-blowing bag type dust collector Download PDF

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Publication number
CN104275051B
CN104275051B CN201310282365.3A CN201310282365A CN104275051B CN 104275051 B CN104275051 B CN 104275051B CN 201310282365 A CN201310282365 A CN 201310282365A CN 104275051 B CN104275051 B CN 104275051B
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air
chamber
rotating
blowing
deashing
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CN104275051A (en
Inventor
王树宝
杨汉东
吕安慰
张铁寅
刘丕树
周立年
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Shanchun Xiumei Ecological Environmental Engineering Co Ltd
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Shanchun Xiumei Ecological Environmental Engineering Co Ltd
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Abstract

The invention discloses a kind of neat stress branch chamber back-blowing bag type dust collector, it comprises dirt air chamber, air-purifying chamber, import loudspeaker, outlet loudspeaker, each point of indoor of dirt air chamber are provided with filter bag, deashing device is provided with above each locellus, deashing device comprises rotating mechanism, tubular rotating mechanism is arranged on air-purifying chamber top board, the air inlet being in bend pipe in air-purifying chamber connects to the corresponding air outlet of back-blowing pipeline via rotating mechanism, the air inlet of bend pipe is fixedly connected with rotating mechanism, the air outlet of back-blowing pipeline is flexibly connected with rotating mechanism, the air outlet of bend pipe and the corresponding setting of low-resistance annular air duct on the locellus top card beam of dirt air chamber, the rotatable parts of rotating mechanism are connected with the output shaft of electrical header, angular transducer is arranged on electrical header, electrical header, angular transducer is connected with controller.Deduster of the present invention adopts the dynamic long air-flow deashing principle of low pressure, and after utilizing purification, flue gas achieves the object of chamber-dividing counter-blowing deashing, and ash-removal effect is good.

Description

Neat stress branch chamber back-blowing bag type dust collector
Technical field
The present invention relates to a kind of neat stress branch chamber back-blowing bag type dust collector, specifically, relate to a kind of sack cleaner utilizing the rear flue gas of purification to carry out chamber-dividing counter-blowing deashing.
Background technology
At present, sack cleaner is widely used in the industries such as power plant, metallurgy, chemical industry, mine, cement.The operation principle of sack cleaner is: under the suction function of air-introduced machine, and dusty gas enters dirt air chamber from import loudspeaker, when by filter bag, grit is delayed on filter bag outer surface, form dust layer, then enter air-purifying chamber, by outlet loudspeaker discharged to air via the gas filtered.Along with the prolongation of time, the thickness of dust layer is thickening gradually, and dedusting resistance increases gradually, so need to carry out deashing to deduster.
At present, the purge mode of sack cleaner mainly contains pulse jetting deashing and the reverse deashing of air-flow two kinds of modes.It is to jet filter bag by the pressure-air of 0.2-0.3MPa high speed that purge mode is rushed in pulse spray, filter bag is made to produce impulsive inflation vibration from inside to outside, filter bag outer surface is made to obtain very large acceleration, thus shake off the dust layer of filter bag outer surface, the ash-removal effect of this purge mode is fine, but shortens because deashing air pressure is too large the service life of filter bag.The reverse purge mode of air-flow is main mainly with locellus back draught deashing, in order to reduce backflowing gas amount, a deduster is divided into multiple locellus, during deashing, valve closing dirt air chamber exports, and opens the entrance of blowback air-flow, makes blowback air flow to into filter bag, filter bag outer surface is blowed to from filter bag inside, the dust layer of filter bag outer surface is come off, and the deashing air pressure of this purge mode is very low, is less than 0.003MPa, so the service life of filter bag is longer, but valve is complicated, and manufacturing cost is also higher, the easy initiating failure of valve seal sex chromosome mosaicism, and maintenance difficulty.
In addition, what adopt between the filter bag of existing back-blowing bag-type dust collector and bag cage is close fit, and namely filter bag is almost close on bag cage, and after long-time reverse gas cleaning, filter bag can be fastened on a bag cage surface, and dismounting is very difficult, haves much room for improvement.
Summary of the invention
The object of the present invention is to provide a kind of neat stress branch chamber back-blowing bag type dust collector, this neat stress branch chamber back-blowing bag type dust collector adopts the dynamic long air-flow deashing principle of low pressure, and after utilizing purification, flue gas achieves the object of chamber-dividing counter-blowing deashing, and ash-removal effect is good.
To achieve these goals, present invention employs following technical scheme:
A kind of neat stress branch chamber back-blowing bag type dust collector, it comprises the dirt air chamber being separated into multiple locellus, the side of this dirt air chamber is provided with import loudspeaker, each this point of indoor is provided with filter bag, this filter bag be located at outside bag cage is fixed on the below of card, this card is fixed on the below of the card beam at this dirt air chamber top, air-purifying chamber is provided with above this dirt air chamber, the side of this air-purifying chamber is provided with outlet loudspeaker, it is characterized in that: the top of each this locellus is provided with deashing device, wherein: this deashing device comprises bend pipe, electrical header, controller, angular transducer, rotating mechanism, this rotating mechanism tubular is arranged on the top board of this air-purifying chamber, the air inlet being in this bend pipe in this air-purifying chamber connects to the corresponding air outlet of back-blowing pipeline via this rotating mechanism, the air inlet of this bend pipe is fixedly connected with this rotating mechanism, this rotating mechanism rotates for driving this bend pipe, this air outlet of this back-blowing pipeline is flexibly connected with this rotating mechanism, the air outlet of this bend pipe be arranged on this dirt air chamber this locellus top this card beam on the corresponding setting of low-resistance annular air duct, this card beam is not covered by cover plate by the part that this low-resistance annular air duct shelters from, the rotatable parts of this rotating mechanism are connected with the output shaft of this electrical header, this angular transducer is arranged on this electrical header, this electrical header, the Signal transmissions control port of this angular transducer is connected with the corresponding signal control port of this controller respectively, this low-resistance annular air duct comprises annular slab, protruding upwardly on this annular slab offer multiple fresh air inlet, the transition portion that this fresh air inlet connects with this annular slab is circular arc, be provided with arc deflector the below of this transition portion of circular arc is corresponding.
The air inlet of described back-blowing pipeline is provided with back-blowing adjustable valve.
Top and the described card of described filter bag are fixed, and the bottom of filter bag described in each is connected to each other together by hook, and this hook is fastened and fixed via steel wire and described filter bag, and the gap between described filter bag and described bag cage is 35mm-55mm.
Described air-purifying chamber is provided with flue gas displacement apparatus, this flue gas displacement apparatus comprises flue gas displacement pipeline, the air inlet of this flue gas displacement pipeline is connected with the opening that described outlet loudspeaker is offered, the air outlet of this flue gas displacement pipeline is connected with the air inlet that flue gas replaces blower fan, and the air inlet of this flue gas displacement pipeline is provided with flue gas displacement valve.
Advantage of the present invention is:
Neat stress branch chamber back-blowing bag type dust collector of the present invention adopts the dynamic long air-flow deashing principle of low pressure, and after utilizing purification, flue gas achieves the object of chamber-dividing counter-blowing deashing, and ash-removal effect is good, and electrical control is not loaded down with trivial details, low cost of manufacture.
Accompanying drawing explanation
Fig. 1 is composition schematic diagram of the present invention.
Fig. 2 is the schematic top plan view of Fig. 1.
Fig. 3 is the structure enlarged diagram of deashing device of the present invention.
Fig. 4 overlooks from Fig. 3 to look, the low-resistance annular air duct in deashing device and the structural representation of cover plate.
Fig. 5 be bottom filter bag with hook, steel wire be fixedly connected with schematic diagram.
Fig. 6 is the enlarged diagram of flue gas displacement apparatus in Fig. 1.
Fig. 7 is the schematic top plan view of Fig. 6.
Detailed description of the invention
As shown in Figure 1 to Figure 4, neat stress branch chamber back-blowing bag type dust collector of the present invention comprises the dirt air chamber 20 being separated into multiple locellus 21, the side of this dirt air chamber 20 is provided with import loudspeaker 10, filter bag 40 is provided with in each this locellus 21, this filter bag 40 be located at outside bag cage (not shown) is fixed on the below (the fixed race known technology between filter bag 40 and card 22) of card 22, this card 22 is fixed on the below of the card beam 23 at this dirt air chamber 20 top, below this dirt air chamber 20, each this locellus 21 corresponding is provided with ash bucket 90, air-purifying chamber 30 is provided with above this dirt air chamber 20, the side of this air-purifying chamber 30 is provided with outlet loudspeaker 80, as Fig. 3, the top of each this locellus 21 is provided with deashing device 50, wherein: this deashing device 50 comprises bend pipe 56, electrical header 52, controller 51, angular transducer 53, rotating mechanism 55, this rotating mechanism 55 tubular is arranged on the top board of this air-purifying chamber 30, the air inlet being in this bend pipe 56 in this air-purifying chamber 30 connects to the corresponding air outlet of back-blowing pipeline 60 via this rotating mechanism 55, the air inlet of this bend pipe 56 is fixedly connected with this rotating mechanism 55, this rotating mechanism 55 rotates for driving this bend pipe 56, this air outlet of this back-blowing pipeline 60 is flexibly connected with this rotating mechanism 55, this rotating mechanism 55 does not drive back-blowing pipeline 60 to rotate, air inlet and the air-introduced machine of this back-blowing pipeline 60 are (not shown, air-introduced machine does not belong to the parts of deduster of the present invention) air outlet connect, this outlet loudspeaker 80 is connected with the air inlet of this air-introduced machine via pipeline, the air outlet of this bend pipe 56 be arranged on this dirt air chamber 20 this locellus 21 top this card beam 23 on the corresponding setting of low-resistance annular air duct 57, this card beam 23 is not covered (as Fig. 4) by cover plate 24 by the part that this low-resistance annular air duct 57 shelters from, can not via card to make air-flow can only pass through from low-resistance annular air duct 57, other parts from card beam 23 outside low-resistance annular air duct 57 are by (air ventilation passage namely between air-purifying chamber 30 and dirt air chamber 20 is only the fresh air inlet 571 of low-resistance annular air duct 57), the rotatable parts of this rotating mechanism 55 are connected with the output shaft of this electrical header 52, this angular transducer 53 is arranged on this electrical header 52, for detecting the rotational angle of the output shaft 54 of electrical header 52, this electrical header 52, the Signal transmissions control port of this angular transducer 53 is connected with the corresponding signal control port of this controller 51 respectively, in actual applications, controller 51 controls the rotation of electrical header 52, the rotation of the output shaft 54 of electrical header 52 drives rotating mechanism 55 to rotate, angular transducer 53 detects the rotational angle of the output shaft 54 of electrical header 52 simultaneously, and rotating mechanism 55 drives bend pipe 56 to rotate, the air outlet of bend pipe 56 is circumferentially moved, and back-blowing pipeline 60 does not rotate.
Deduster is provided with 3 locellus 21 as shown in fig. 1, a deashing device 50 is equipped with above each locellus 21, therefore correspondingly, back-blowing pipeline 60 has 1 air inlet, 3 air outlets, and the air inlet of the bend pipe 56 of each deashing device 50 connects to a corresponding air outlet of back-blowing pipeline 60 via the rotating mechanism 55 of this deashing device 50.
As Fig. 1, the air inlet of back-blowing pipeline 60 can be provided with back-blowing adjustable valve 61, and this back-blowing adjustable valve 61 can be manual control mode or automatically controlled mode.
In actual design, the corresponding signal control port of each controller 51 can be connected with the corresponding controling end mouth of master controller (not shown) respectively, controls by the unified of master controller.
As Fig. 3 and Fig. 4, low-resistance annular air duct 57 comprises annular slab 573, protruding upwardly on this annular slab 573 offer multiple fresh air inlet 571, in the process that bend pipe 56 rotates, the air outlet of bend pipe 56 can be relative with each fresh air inlet 571, as Fig. 4, the multiple fresh air inlets 571 offered circumferentially arrange, the transition portion 572 that this fresh air inlet 571 connects with this annular slab 573 is circular arc, as shown in Figure 3, the circular-arc-shaped design of transition portion can make air-flow become soft, reduce resistance, in addition, be provided with arc deflector 58 the below of this transition portion 572 of circular arc is corresponding, more reasonable to make distribution of air flow obtain, resistance is less, as Fig. 3, this arc deflector 58 is in the space of card beam 23.
As Fig. 1 and Fig. 5, the top of filter bag 40 and the card 22 at dirt air chamber 20 top are fixed, the bottom of each filter bag 40 is connected to each other together by hook 41, namely filter bag 40 fixing below the card 22 at this dirt air chamber 20 top is achieved, and, this hook 41 is fastened and fixed via steel wire 42 and filter bag 40, hook 41 and steel wire 42 be fastened and fixed design can make the gap between each filter bag 40 keep immobilize, and, compared with the fixture on existing deduster, the design that is fastened and fixed of hook 41 and steel wire 42 alleviates weight, and easy accessibility.In actual design, gap between filter bag 40 and bag cage is 35mm-55mm, filter bag dilatancy surplus when such matched in clearance design both ensure that reverse gas cleaning, filter bag dilatancy excessive colliding with its side filter bag when turn avoid reverse gas cleaning and reduce ash-removal effect.
As Fig. 6 and Fig. 7, air-purifying chamber 30 of the present invention also can be provided with flue gas displacement apparatus 70, this flue gas displacement apparatus 70 comprises flue gas displacement pipeline 72, the air inlet of this flue gas displacement pipeline 72 is connected with the opening that outlet loudspeaker 80 is offered, the air outlet of this flue gas displacement pipeline 72 is connected with the air inlet that flue gas replaces blower fan 71, the Signal transmissions control port of this flue gas displacement blower fan 71 can be connected with the corresponding controling end mouth of this master controller, the air inlet of this flue gas displacement pipeline 72 is provided with flue gas displacement valve 73, flue gas displacement valve 73 can be manual control mode or automatically controlled mode.
In the present invention, also can be provided with input keyboard (not shown), the signal port of this input keyboard can be connected with the corresponding controling end mouth of master controller.Input keyboard can be provided with the off-position data setting knob for arranging deashing point position, for arrange the deashing point time of staying dwell time setting button, for bend pipe 56 is carried out 0 calibration 0 correction button, for manually debugging the manual debugging button of bend pipe rotation process and fault stop button etc.
In the present invention, dirt air chamber 20, filter bag 40, card 22, card beam 23, bag cage, air-purifying chamber 30, ash bucket 90 etc. are deduster known product, what controller 51, electrical header 52, angular transducer 53, rotating mechanism 55, arc deflector 58, flue gas displacement blower fan 71 etc. was this area knows product or technology, therefore it specifically forms and does not here describe in detail.
The course of work of the present invention is:
When needs dedusting, open air-introduced machine, under the effect of air-introduced machine negative pressure, dusty gas enters from import loudspeaker 10, filter via the filter bag 40 in each locellus 21 of dirt air chamber 20, grit is delayed on the outer surface of filter bag 40, forms dust layer, filter gas then via low-resistance annular air duct 57 on fresh air inlet 571 and enter air-purifying chamber 30, then from outlet loudspeaker 80 discharged to air.The gas of discharging from outlet loudspeaker 80 is called as neat stress in the present invention.
Such as, when needs carry out deashing to deduster of the present invention, because dust layer is blocked up, when the pressure reduction of deduster of the present invention reaches setting threshold value, then can start to carry out deashing operation, be specially:
Open back-blowing adjustable valve 61 and adjusted, the neat stress controlling to export from the air outlet of air-introduced machine enters the air quantity of back-blowing pipeline 60, meanwhile, by the control of master controller, makes each locellus 21 carry out deashing operation one by one.Be described for a locellus 21 below.
Controller 51 sends operating instruction, control electrical header 52 to rotate, the rotation of electrical header 52 drives rotating mechanism 55 to rotate, meanwhile, angular transducer 53 detects the rotational angle of electrical header 52 output shaft 54 and detection signal is sent to controller 51, carries out analyzing and processing by controller 51.When the output shaft 54 of electrical header 52 drives bend pipe 56 to rotate (via rotating mechanism 55 by rotating mechanism 55, the output shaft 54 of electrical header 52 does not drive back-blowing pipeline 60 to rotate), when the air outlet of bend pipe 56 forwards a fresh air inlet 571 of specifying to, controller sends halt instruction, electrical header 52 is out of service and maintenance sets the deashing time, start to carry out deashing operation to this deashing point, as figure, neat stress enters bend pipe 56 from back-blowing pipeline 60, then via this fresh air inlet 571 of low-resistance annular air duct 57, after arc deflector 58 below it, enter this locellus 21, deashing is carried out to the dust layer on the filter bag 40 in this locellus 21 and corresponding to this fresh air inlet 571.When set the deashing time arrive time, then controller 51 sends operating instruction again, and the air outlet of bend pipe 56 is forwarded to fresh air inlet 571 that the next one specifies also stops the setting deashing time, carries out deashing operation to this next deashing point, the like.When bend pipe 56 turns to initial deashing point, the deashing operation of this locellus 21 is just completed.As Fig. 3, there is shown two deashing points, one is fresh air inlet 571 position of bend pipe 56 correspondence of solid line, and another is fresh air inlet 571 position of dotted line bend pipe 56 correspondence.
It should be noted that, when carrying out deashing operation to locellus, dedusting operation is carried out simultaneously, and deashing operation and dedusting operation are independent of each other.When carrying out deashing to a deashing point, deashing device 50 passes through fresh air inlet 571 corresponding to this deashing point, make air-flow flow from the top down to carry out deashing operation, and all the other fresh air inlets 571 are still for making the gas of filtration enter air-purifying chamber 30 from bottom to top via them.
It should be noted that, what the present invention adopted is the mode of dynamically each locellus 21 being carried out to deashing, and the mode of this dynamic deashing can significantly improve ash-removal effect, can realize carrying out omnibearing deashing to locellus filter bag everywhere.In the present invention, the air-flow of deashing is not wink blowing gas stream, but the long air-flow that air-flow is soft, different from the air-flow that existing purge mode adopts, this long air-flow can carry out deashing to the dust layer of the upper and lower each position of filter bag, there is not cleaning dead angle, effectively improve ash-removal effect, and damage can not be produced to filter bag.
Deashing air pressure of the present invention is very low, is 3000-5000Pa, contributes to the service life extending filter bag.
The present invention takes full advantage of the flue gas after purification, can realize deashing object by the flue gas after using purification, compared with existing purge mode, does not need to use air, thus decreases the setting of Air Compressor Equipment, reduce equipment cost.
When air-introduced machine breaks down, flue gas displacement valve 73 can be opened, open flue gas displacement blower fan 71, the heat smoke of deduster dirt air chamber 20 of the present invention, air-purifying chamber 30 inside is extracted out via outlet loudspeaker 80, discharged by the air outlet of flue gas displacement blower fan 71, thus reduce air-introduced machine dewing corrosion, the generation of the situation such as filter bag hardens, extend service life of the present invention.
Advantage of the present invention is: neat stress branch chamber back-blowing bag type dust collector of the present invention adopts the dynamic long air-flow deashing principle of low pressure, and after utilizing purification, flue gas achieves the object of chamber-dividing counter-blowing deashing, and ash-removal effect is good, and electrical control is not loaded down with trivial details, low cost of manufacture.
The above know-why being preferred embodiment of the present invention and using; for a person skilled in the art; when not deviating from the spirit and scope of the present invention; any based on apparent changes such as the equivalent transformation on technical solution of the present invention basis, simple replacements, all belong within scope.

Claims (4)

1. a neat stress branch chamber back-blowing bag type dust collector, it comprises the dirt air chamber being separated into multiple locellus, the side of this dirt air chamber is provided with import loudspeaker, each this point of indoor is provided with filter bag, this filter bag be located at outside bag cage is fixed on the below of card, this card is fixed on the below of the card beam at this dirt air chamber top, air-purifying chamber is provided with above this dirt air chamber, the side of this air-purifying chamber is provided with outlet loudspeaker, it is characterized in that: the top of each this locellus is provided with deashing device, wherein: this deashing device comprises bend pipe, electrical header, controller, angular transducer, rotating mechanism, this rotating mechanism tubular is arranged on the top board of this air-purifying chamber, the air inlet being in this bend pipe in this air-purifying chamber connects to the corresponding air outlet of back-blowing pipeline via this rotating mechanism, the air inlet of this bend pipe is fixedly connected with this rotating mechanism, this rotating mechanism rotates for driving this bend pipe, this air outlet of this back-blowing pipeline is flexibly connected with this rotating mechanism, the air outlet of this bend pipe be arranged on this dirt air chamber this locellus top this card beam on the corresponding setting of low-resistance annular air duct, this card beam is not covered by cover plate by the part that this low-resistance annular air duct shelters from, the rotatable parts of this rotating mechanism are connected with the output shaft of this electrical header, this angular transducer is arranged on this electrical header, this electrical header, the Signal transmissions control port of this angular transducer is connected with the corresponding signal control port of this controller respectively, this low-resistance annular air duct comprises annular slab, protruding upwardly on this annular slab offer multiple fresh air inlet, the transition portion that this fresh air inlet connects with this annular slab is circular arc, be provided with arc deflector the below of this transition portion of circular arc is corresponding.
2. neat stress branch chamber back-blowing bag type dust collector as claimed in claim 1, is characterized in that:
The air inlet of described back-blowing pipeline is provided with back-blowing adjustable valve.
3. neat stress branch chamber back-blowing bag type dust collector as claimed in claim 1 or 2, is characterized in that:
Top and the described card of described filter bag are fixed, and the bottom of filter bag described in each is connected to each other together by hook, and this hook is fastened and fixed via steel wire and described filter bag, and the gap between described filter bag and described bag cage is 35mm-55mm.
4. neat stress branch chamber back-blowing bag type dust collector as claimed in claim 1 or 2, is characterized in that:
Described air-purifying chamber is provided with flue gas displacement apparatus, this flue gas displacement apparatus comprises flue gas displacement pipeline, the air inlet of this flue gas displacement pipeline is connected with the opening that described outlet loudspeaker is offered, the air outlet of this flue gas displacement pipeline is connected with the air inlet that flue gas replaces blower fan, and the air inlet of this flue gas displacement pipeline is provided with flue gas displacement valve.
CN201310282365.3A 2013-07-05 2013-07-05 Neat stress branch chamber back-blowing bag type dust collector Active CN104275051B (en)

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CN105710788B (en) * 2016-03-08 2017-11-07 李彩琴 A kind of dustless sand-blasting machine
CN106268074A (en) * 2016-08-10 2017-01-04 北京赫宸环境工程股份有限公司 A kind of vibration cleaning bag-type dust collecting equipment
CN106310813A (en) * 2016-10-20 2017-01-11 广西金邦泰科技有限公司 Bag-type dust remover with high stability for chemical engineering
CN109331602A (en) * 2018-09-05 2019-02-15 浙江易澄环保科技有限公司 A kind of exhaust treatment system
CN109603338B (en) * 2019-02-20 2021-03-30 北京博电兴源节能科技有限公司 Multi-valve collaborative type air flow ash removal bag type dust collector

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US4878926A (en) * 1988-08-16 1989-11-07 Pneumafil Corporation Dust collector
CN201150826Y (en) * 2008-02-02 2008-11-19 大庆开发区华泰有限公司 Automatic reverse-blow bag powder purification apparatus
CN201154264Y (en) * 2007-12-24 2008-11-26 哈尔滨工业大学环保科技股份有限公司 Chambered orientation blowback bag type collector
CN201959669U (en) * 2011-03-10 2011-09-07 北京赫宸环境工程有限公司 Suspension type rotation positioning blowback bag filter
CN202715321U (en) * 2012-07-03 2013-02-06 高境 Deashing mechanism unit of reverse blowing bag-type dust collector
CN203417547U (en) * 2013-07-05 2014-02-05 山川秀美生态环境工程有限公司 Bag type dust collector capable of realizing compartment reverse blowing with purified flue gases

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Publication number Priority date Publication date Assignee Title
US4878926A (en) * 1988-08-16 1989-11-07 Pneumafil Corporation Dust collector
CN201154264Y (en) * 2007-12-24 2008-11-26 哈尔滨工业大学环保科技股份有限公司 Chambered orientation blowback bag type collector
CN201150826Y (en) * 2008-02-02 2008-11-19 大庆开发区华泰有限公司 Automatic reverse-blow bag powder purification apparatus
CN201959669U (en) * 2011-03-10 2011-09-07 北京赫宸环境工程有限公司 Suspension type rotation positioning blowback bag filter
CN202715321U (en) * 2012-07-03 2013-02-06 高境 Deashing mechanism unit of reverse blowing bag-type dust collector
CN203417547U (en) * 2013-07-05 2014-02-05 山川秀美生态环境工程有限公司 Bag type dust collector capable of realizing compartment reverse blowing with purified flue gases

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