CN105879545A

CN105879545A - Pulsed jet cloth filter

Info

Publication number: CN105879545A
Application number: CN201610295041.7A
Authority: CN
Inventors: 陈昱
Original assignee: Sichuan Anchuang Environmental Protection Technology Co Ltd
Current assignee: Sichuan Anchuang Environmental Protection Technology Co Ltd
Priority date: 2016-05-06
Filing date: 2016-05-06
Publication date: 2016-08-24

Abstract

The invention discloses a pulsed jet cloth filter which comprises a box body, wherein the box body is internally provided with a gas purification cavity and a filtration cavity which are isolated from each other; two side walls of the box body are respectively provided with a gas inlet pipe and a gas outlet pipe; the gas purification cavity is communicated with the gas outlet pipe; the filtration cavity is communicated with the gas inlet pipe; the gas purification cavity is internally provided with a gas spray pipe; one end of the gas spray pipe penetrates through the gas purification cavity, extends to the exterior of the box body, and is provided with a pulse valve; the filtration cavity is internally provided with multiple filtration bags; certain ends of the filtration bags are communicated with the gas purification cavity; the gas spray pipe is provided with multiple nozzles which are in one-to-one correspondence with the filtration bags; the other end of a dust preventing plate is provided with a guide plate inclining along the gas inlet direction; the side surface, opposite to the gas inlet pipe, of the dust preventing plate is fixedly provided with a counter weight. By virtue of secondary collection of dust in flue gas, gas finally discharged through the gas outlet pipe conforms to the industrial standard, and the purpose of urgently improving the dedusting effect in the industry is achieved.

Description

A kind of pulsed jet cloth filter

Technical field

The present invention relates to field of Environment Protection, specifically refer to a kind of pulsed jet cloth filter.

Background technology

Pulse bag type dust collector, belong to mechanical shaking type cleaner unit, dust in air-flow and granule can be collected and separate, main employing mechanical vibrator mode carries out deashing, is widely used in the purification of the dusty gas of food, pharmacy, feedstuff, metallurgy, building materials, cement, machinery, chemical industry, electric power, light industry and the recovery of particulate dust.

At present, existing pulse bag type dust collector is typically made up of several parts such as bottom steel structure stand, ash bucket, casing, inlet and outlet, filter bag, jetting deashing device and control devices.The usual volume of existing pulse bag type dust collector is big, cost is high, and it is bigger, inefficient to consume energy.Chinese invention patent CN241002Y discloses " pulse bag type dust collector of ultralow pressure winding-up " on the 13rd in December in 2000.This patent mainly replaces existing air compressor with Roots blower, and increases gas bag volume, pulse valve escape pipe caliber, injection tube caliber, injection hole aperture, reduces jetting pressure and increases blows air amount.But, air quantity that air compressor can be provided by compared by Roots blower and wind-force is less, and its jetting deashing effect is unsatisfactory；Similarly, when the flue gas produced during coalingging coke furnace carbonization chamber processes, due to limited space on charging car, cleaner unit intake stack design path is short, is drawn into filter bag of dust collector casing when there being fire to scurry into cleaner unit suspended hood in coke oven, causes filter bag to damage.

Summary of the invention

It is an object of the invention to provide a kind of pulsed jet cloth filter, while ensureing the stability that filter bag uses, improve the ash-removal effect of cleaner unit.

The purpose of the present invention is achieved through the following technical solutions:

A kind of pulsed jet cloth filter, including casing, clean air cavity and the filter chamber of mutually isolation it is provided with at described box house, air inlet pipe and escape pipe it is respectively equipped with on the two side of casing, and described clean air cavity connects with escape pipe, described filter chamber connects with air inlet pipe, it is provided with air jet pipe in described clean air cavity, described air jet pipe one end is run through clean air cavity and is extended to outside casing and be provided with pulse valve in this end, multiple filter bag it is provided with in described filter chamber, one end of described filter bag connects with described clean air cavity, multiple and filter bag nozzle one to one is had on described air jet pipe；Also including the hinged pre-dirt plate being arranged on filter chamber top in end, one end, the other end at described pre-dirt plate is provided with the deflector tilted along airintake direction, and is fixed with balancing weight on the pre-dirt backboard side to air inlet pipe；The stopper slot of annular is had at described cylinder inboard wall, described pore is arranged in the middle part of stopper slot, slide block is slidably arranged in stopper slot, and be separately installed with semicircular elastic protrusion at the described slide block upper surface two end points with lower surface, and the diameter of described elastic protrusion is identical with the groove depth size of stopper slot；Described skeleton includes the framework being made up of quoit and metallic rod and is fixed on two U-shapeds on framework top and buckles, buckling the reinforcement being provided with and buckling the L-shaped matched on inwall, and on described reinforcement lower end outer wall, be provided with engaging portion outwardly, and it is provided with, buckling, the snap groove matched with engaging portion on inwall.

The best for the dust removing effects of cleaner in prior art, the present invention is provided with pre-dirt plate in the filter chamber of flue gas, i.e. flue gas is after air inlet pipe enters in filter chamber, under the effect of pre-dirt plate, due to effect of inertia, crude particle dust in air-flow falls directly into the bottom (i.e. the bottom of casing) of filter chamber, and then plays the effect of pre-dirt；Air-flow continues to move up, pass through filter bag, by dust catching at the outer surface of filter bag, purified gas rises in the clean air cavity on filter chamber top in then entering filter bag, after converging, this purified gas is directly discharged by escape pipe, and when filter bag external dust gathers certain thickness, pulse valve action, compressed air is made to flow in air jet pipe, and sprayed in the filter bag of its correspondence by multiple nozzles, high velocity air drives surrounding air in nozzle sprays into each filter bag, make the dust releasing being captured on filter bag outer wall, finally it is collected into the bottom of filter chamber, after dust bottom filter chamber is collected, pulse valve cuts out, filter bag returns back to original filtration condition；By the secondary of dust in flue gas is collected so that finally met industrial standard by expellant gas in escape pipe, reach the purpose being badly in need of in the industry improving dust removing effects.

And in prior art, when the flue gas produced during coalingging coke furnace carbonization chamber processes, the design path of intake stack is shorter, in flue gas, filter bag is caused damage in entering directly into cleaner unit by the Mars of residual, inventor carries out further investigation and finds, the flue gas flow velocity when entering in air inlet pipe is the most unstable, in high temperature environments, the Mars flowed out with flue gas cannot consume the amount of heat himself carried in moving process when flue gas flow rate is too fast, and at flue gas flow rate relatively time slack, Mars can in moving process automatic distinguishing, i.e. filter bag cannot be caused damage；Meanwhile, the pre-dirt plate being fixedly installed in filter chamber can hinder the normal pass of flue gas, and therefore, the dust in flue gas can not only be filtered for the first time by the present invention at the pre-dirt plate of the hinged setting of import department of air inlet pipe, moreover it is possible to intercepts the air-flow in air inlet pipe；When the flow velocity of flue gas stream is too fast, pre-dirt plate can be formed impact, the pre-dirt plate flow direction around its pin joint and along flue gas is swung, utilize the balancing weight in pre-dirt back to increase the gravity of pre-dirt plate, the amplitude of fluctuation preventing pre-dirt is excessive, and once when flue gas, the impact dynamics of pre-dirt plate be reduced, pre-dirt plate will occur reverse swing, to control the size of the passage formed between air inlet pipe and pre-dirt plate, and then control flow velocity that flue gas enters in filter chamber and (i.e. utilize gas in unit volume to be entered after in big passage by passage aisle with certain flow velocity, the principle that its speed can reduce)；I.e. enter in exhaustor when flue gas with speed faster, under the effect of pre-dirt plate, flue gas is made all to enter in filter chamber with relatively stable speed, the Mars simultaneously entered in the lump with flue gas has enough displacements makes it be distributed by heat that self is entrained, it is to avoid Mars directly contacts with filter bag and causes it impaired.

Wherein, slide block is slidably arranged in the stopper slot of annular, make slide block movement in cylinder by a definite limitation, press down slide block to cause spring impaired when i.e. avoiding the gas pressure in inner bag excessive, or prevent the gas pressure in inner bag from disappearing too fast and causing slide block excessively upper shifting to avoid slide block to eject cylinder；And during the moving up and down of slide block, at the upper surface of slide block and two end points of lower surface, semicircular elastic protrusion is installed, make slide block when moving the extreme position to upper end or lower end, reduce slide block end face and between stopper slot collision loss, to ensure stability when completely cutting off between inner bag and auxiliary air runner, ensure the service life of slide block simultaneously.Present invention China and foreign countries bag, inner bag and skeleton constitute filter dirt cloth bag, and filter bag of the prior art generally uses welding or is bonded in fume dust remover, and the framework that filter bag uses is generally selected steel wire weld molding, filter bag is supported and shapes, but framework volume of the prior art is the biggest, manufacture and all inconvenience is installed, add manufacture difficulty, and the skeleton in the present invention uses quoit and metallic rod to constitute, easy to process fast, and utilize two U-shapeds on metal framework top to buckle, can directly connect and fix inside dust arrester, and the reinforcement arranged ensure that framework and stablizing of buckling are laid, and the engaging portion on reinforcement outer wall and the snap groove buckled cooperate, contact area between can increasing reinforcement and buckling, when internal bag carries out air blast, rocking of framework can be prevented.

Having stopper slot in the upper end of described balancing weight, be hinged with connecting rod at the top of described filter chamber, and be provided with roller at the end of connecting rod, described roller-coaster is arranged in stopper slot.When the amplitude of fluctuation of pre-dirt plate is excessive, is equivalent to the flue gas in exhaustor and directly impacts on filter bag, it is impossible to reach two-stage dust removal effect, and easily make filter bag impaired by the interference of Mars；The present invention has stopper slot in the upper end of balancing weight, and hinged on the cavity wall of filter chamber it is provided with connecting rod, and the pulley of connecting rod end is slidably at stopper slot, make to obtain to slide mobile extreme position on the left of stopper slot time, pre-dirt plate then cannot continue to swing to the right, similarly, when pulley moves the extreme position on the right side of stopper slot, pre-dirt plate then cannot continue to swing to the left, excessive with the left and right amplitude of oscillation that prevents pre-dirt plate, ensure that flue gas enters in filter chamber with stable flow velocity in dust removal process, maximizes the dust removing effects realizing flue gas.

Being provided with condenser on the sidewall of described casing, the gas outlet of described condenser connects with filter chamber, and the air inlet of condenser connects with air inlet pipe.Arranging condenser between air inlet pipe and filter chamber, described condenser is flue gas condenser, a large amount of heat energy that carry can eliminate a part in flue gas, affects the service life of filter bag to prevent from entering the flue-gas temperature in filter chamber too high.

The bottom of described casing is provided with revolving valve.As preferably, rotary valve is installed back at box bottom, wherein revolving valve is also referred to as discharge valve or vane type wind stopping device, vane type wind stopping device Main Function in air conveying or casing is that and makes discharger in the case of having pressure differential, dust is smoothly discharged out, and stop air to leak, thus ensure conveying and casing can normally with work efficiently.

Described filter bag is basalt filter bag.As preferably, basalt filter bag (CBF fiber+P84 fiber+high silica) is with the inorganic basalt fibre of fine-denier as raw material, give full play to its high temperature resistant, aging-resistant superior function, through unique nonwoven nonwovens process, thoroughly solve its fiber without curling ripple, be easily generated electrostatic, be difficult to the technical barrier of combing, define concrete dynamic modulus small-bore PO PE NT PTFE, basalt Nomex has been filled up the filter bag under the conditions of China's bag-type dusting worst hot case and has been produced high temperature blank, is the ideal product substituting stainless steel fibre filter bag.

The present invention compared with prior art, has such advantages as and beneficial effect:

1, the present invention enter in exhaustor when flue gas with speed faster, under the effect of pre-dirt plate, flue gas is made all to enter in filter chamber with relatively stable speed, the Mars simultaneously entered in the lump with flue gas has enough displacements makes it be distributed by heat that self is entrained, it is to avoid Mars directly contacts with filter bag and causes it impaired；

2, after in the present invention, dust bottom filter chamber is collected, pulse valve cuts out, and filter bag returns back to original filtration condition；By the secondary of dust in flue gas is collected so that finally met industrial standard by expellant gas in escape pipe, reach the purpose being badly in need of in the industry improving dust removing effects；

3, the present invention arranges condenser between air inlet pipe and filter chamber, and described condenser is flue gas condenser, a large amount of heat energy that carry can eliminate a part in flue gas, affects the service life of filter bag to prevent from entering the flue-gas temperature in filter chamber too high.

Accompanying drawing explanation

Accompanying drawing described herein is used for providing being further appreciated by the embodiment of the present invention, constitutes the part of the application, is not intended that the restriction to the embodiment of the present invention.In the accompanying drawings:

Fig. 1 is present configuration schematic diagram；

Fig. 2 is the structural representation under deashing state of the present invention；

Fig. 3 is the structural representation of filter bag；

Fig. 4 is the enlarged drawing in Fig. 3 at A；

Fig. 5 is the structural representation of skeleton.

Labelling and corresponding parts title in accompanying drawing:

The outer bag of 1-, 2-inner bag, 3-skeleton, 31-reinforcement, 32-buckle, 33-engaging portion, 34-framework, 4-gas outlet, 5-cylinder, 6-pore, 7-slide block, 8-spring, 9-stopper slot, 10-elastic protrusion, 11-pulse valve, 12-pre-dirt plate, 13-air jet pipe, 14-connecting rod, 15-stopper slot, 16-balancing weight, 17-deflector, 18-escape pipe, 19-filter bag, 20-revolving valve, 21-casing, 22-air inlet pipe, 23-condenser.

Detailed description of the invention

For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, and the exemplary embodiment of the present invention and explanation thereof are only used for explaining the present invention, not as a limitation of the invention.

Embodiment 1

As shown in Fig. 1 ~ Fig. 5, the present embodiment includes casing 21, clean air cavity and the filter chamber of mutually isolation it is internally provided with at described casing 21, air inlet pipe 22 and escape pipe 18 it is respectively equipped with on the two side of casing 21, and described clean air cavity connects with escape pipe 18, described filter chamber connects with air inlet pipe 22, it is provided with air jet pipe 13 in described clean air cavity, described air jet pipe 13 one end is run through clean air cavity and is extended to outside casing 21 and be provided with pulse valve 11 in this end, multiple filter bag 19 it is provided with in described filter chamber, one end of described filter bag 19 connects with described clean air cavity, multiple and filter bag 19 nozzle one to one is had on described air jet pipe 13；Also including the hinged pre-dirt plate 12 being arranged on filter chamber top in end, one end, the other end at described pre-dirt plate 12 is provided with the deflector 17 tilted along airintake direction, and is fixed with balancing weight 16 at pre-dirt plate 12 on the side of air inlet pipe 22；The stopper slot 9 of annular is had at described cylinder 5 inwall, described pore 6 is arranged in the middle part of stopper slot 9, slide block 7 is slidably arranged in stopper slot 9, and be separately installed with semicircular elastic protrusion 10 at described slide block 7 upper surface two end points with lower surface, and the diameter of described elastic protrusion 10 is identical with the groove depth size of stopper slot 9；Described skeleton 3 includes the framework 34 being made up of quoit and metallic rod and is fixed on two U-shapeds on framework 34 top and buckles 32, buckling the reinforcement 31 being provided with on 32 inwalls with buckling 32 L-shaped matched, and be provided with engaging portion 33 outwardly on described reinforcement 31 lower end outer wall, and it is provided with, buckling, the snap groove matched with engaging portion 33 on 32 inwalls.

The best for the dust removing effects of cleaner in prior art, the present embodiment is provided with pre-dirt plate 12 in the filter chamber of flue gas, i.e. flue gas is after air inlet pipe 22 enters in filter chamber, under the effect of pre-dirt plate 12, due to effect of inertia, crude particle dust in air-flow falls directly into the bottom (i.e. the bottom of casing 21) of filter chamber, and then plays the effect of pre-dirt；Air-flow continues to move up, by filter bag 19, by dust catching at the outer surface of filter bag 19, purified gas rises in the clean air cavity on filter chamber top in then entering filter bag 19, after converging, this purified gas is directly discharged by escape pipe 18, and when filter bag 19 external dust gathers certain thickness, pulse valve 11 action, compressed air is made to flow in air jet pipe 13, and sprayed in the filter bag 19 of its correspondence by multiple nozzles, high velocity air drives surrounding air in nozzle sprays into each filter bag 19, make the dust releasing being captured on filter bag 19 outer wall, finally it is collected into the bottom of filter chamber, after dust bottom filter chamber is collected, pulse valve 11 cuts out, filter bag 19 returns back to original filtration condition；By the secondary of dust in flue gas is collected so that finally met industrial standard by expellant gas in escape pipe 18, reach the purpose being badly in need of in the industry improving dust removing effects.

And in prior art, when the flue gas produced during coalingging coke furnace carbonization chamber processes, the design path of intake stack is shorter, in flue gas, filter bag 19 is caused damage in entering directly into cleaner unit by the Mars of residual, inventor carries out further investigation and finds, the flue gas flow velocity when entering in air inlet pipe 22 is the most unstable, in high temperature environments, the Mars flowed out with flue gas cannot consume the amount of heat himself carried in moving process when flue gas flow rate is too fast, and at flue gas flow rate relatively time slack, Mars can in moving process automatic distinguishing, i.e. filter bag 19 cannot be caused damage；Simultaneously, the pre-dirt plate 12 being fixedly installed in filter chamber can hinder the normal pass of flue gas, therefore, the dust in flue gas can not only be filtered for the first time by the present invention at the pre-dirt plate 12 of the hinged setting of import department of air inlet pipe 22, moreover it is possible to intercepts the air-flow in air inlet pipe 22；When the flow velocity of flue gas stream is too fast, pre-dirt plate 12 can be formed impact, the pre-dirt plate 12 flow direction around its pin joint and along flue gas is swung, utilize the balancing weight 16 on pre-dirt plate 12 back side to increase the gravity of pre-dirt plate 12, the amplitude of fluctuation preventing pre-dirt is excessive, and once when flue gas, the impact dynamics of pre-dirt plate 12 be reduced, pre-dirt plate 12 will occur reverse swing, to control the size of the passage formed between air inlet pipe 22 and pre-dirt plate 12, and then control flow velocity that flue gas enters in filter chamber and (i.e. utilize gas in unit volume to be entered after in big passage by passage aisle with certain flow velocity, the principle that its speed can reduce)；I.e. enter in exhaustor when flue gas with speed faster, under the effect of pre-dirt plate 12, flue gas is made all to enter in filter chamber with relatively stable speed, the Mars simultaneously entered in the lump with flue gas has enough displacements makes it be distributed by heat that self is entrained, it is to avoid Mars directly contacts with filter bag 19 and causes it impaired.

Wherein, the present embodiment has stopper slot 15 in the upper end of described balancing weight 16, is hinged with connecting rod 14 at the top of described filter chamber, and is provided with roller at the end of connecting rod 14, and described roller-coaster is arranged in stopper slot 15；Being provided with condenser 23 on the sidewall of described casing 21, the gas outlet of described condenser 23 connects with filter chamber, and the air inlet of condenser 23 connects with air inlet pipe 22.Slide block 7 is slidably arranged in the stopper slot 9 of annular, make the slide block 7 movement in cylinder 5 by a definite limitation, press down slide block 7 to cause spring 8 impaired when i.e. avoiding the gas pressure in inner bag 2 excessive, or prevent the gas pressure in inner bag 2 from disappearing too fast and causing slide block 7 excessively upper shifting to avoid slide block 7 to eject cylinder 5；And during the moving up and down of slide block 7, at the upper surface of slide block 7 and two end points of lower surface, semicircular elastic protrusion 10 is installed, make slide block 7 when moving the extreme position to upper end or lower end, reduce slide block 7 end face and between stopper slot 9 collision loss, to ensure stability when completely cutting off between inner bag 2 and auxiliary air runner, ensure the service life of slide block 7 simultaneously.nullThe present embodiment China and foreign countries bag 1、Inner bag 2 and skeleton 3 constitute filter dirt cloth bag，And filter bag of the prior art generally uses welding or is bonded in fume dust remover，And the framework that filter bag uses is generally selected steel wire weld molding，Filter bag is supported and shapes，But framework volume of the prior art is the biggest，Manufacture and all inconvenience is installed，Add manufacture difficulty，And the skeleton 3 in the present embodiment uses quoit to constitute with metallic rod，Easy to process fast，And utilize two U-shapeds on metal framework top to buckle 32，Can directly connect and fix inside dust arrester，And the reinforcement 31 arranged ensure that framework 34 and buckles 43 stablize and lay，And the engaging portion 33 on reinforcement 41 outer wall cooperates with the snap groove buckled on 32，Reinforcement 31 and the contact area buckling between 32 can be increased，When internal bag 2 carries out air blast，Rocking of framework 34 can be prevented.

When the amplitude of fluctuation of pre-dirt plate 12 is excessive, is equivalent to the flue gas in exhaustor and directly impacts on filter bag 19, it is impossible to reach two-stage dust removal effect, and easily make filter bag 19 impaired by the interference of Mars；The present invention has stopper slot 15 in the upper end of balancing weight 16, and hinged on the cavity wall of filter chamber it is provided with connecting rod 14, and the pulley of connecting rod 14 end is slidably at stopper slot 15, make to obtain to slide mobile extreme position on the left of stopper slot 15 time, pre-dirt plate 12 then cannot continue to swing to the right, similarly, when pulley moves the extreme position on the right side of stopper slot 15, pre-dirt plate 12 then cannot continue to swing to the left, excessive with the left and right amplitude of oscillation that prevents pre-dirt plate 12, ensure that flue gas enters in filter chamber with stable flow velocity in dust removal process, maximize the dust removing effects realizing flue gas.Arranging condenser 23 between air inlet pipe 22 and filter chamber, described condenser 23 is flue gas condenser 23, a large amount of heat energy that carry can eliminate a part in flue gas, affects the service life of filter bag 19 to prevent from entering the flue-gas temperature in filter chamber too high.

As preferably, rotary valve 20 is installed back bottom casing 21, wherein revolving valve 20 also referred to as discharge valve or vane type wind stopping device, vane type wind stopping device Main Function in air conveying or casing 21 is that and makes discharger in the case of having pressure differential, dust is smoothly discharged out, and stop air to leak, thus ensure conveying and casing 21 can normally with work efficiently.

As preferably, basalt filter bag 19(CBF fiber+P84 fiber+high silica) it is with the inorganic basalt fibre of fine-denier as raw material, give full play to its high temperature resistant, aging-resistant superior function, through unique nonwoven nonwovens process, thoroughly solve its fiber without curling ripple, be easily generated electrostatic, be difficult to the technical barrier of combing, define concrete dynamic modulus small-bore PO PE NT PTFE 19, basalt Nomex has been filled up the filter bag 19 under the conditions of China's bag-type dusting worst hot case and has been produced high temperature blank, is the ideal product substituting stainless steel fibre filter bag 19.

Above-described detailed description of the invention; the purpose of the present invention, technical scheme and beneficial effect are further described; it is it should be understood that; the foregoing is only the detailed description of the invention of the present invention; the protection domain being not intended to limit the present invention; all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. done, should be included within the scope of the present invention.

Claims

1. a pulsed jet cloth filter, including casing (21), clean air cavity and the filter chamber of mutually isolation it is internally provided with at described casing (21), air inlet pipe (22) and escape pipe (18) it is respectively equipped with on the two side of casing (21), and described clean air cavity connects with escape pipe (18), described filter chamber connects with air inlet pipe (22), it is characterized in that: in described clean air cavity, be provided with air jet pipe (13), described air jet pipe (13) one end is run through clean air cavity and is extended to casing (21) and outward and be provided with pulse valve (11) in this end, multiple filter bag (19) it is provided with in described filter chamber, one end of described filter bag (19) connects with described clean air cavity, multiple and filter bag (19) nozzle one to one is had on described air jet pipe (13)；Also include the hinged pre-dirt plate (12) being arranged on filter chamber top in end, one end, the other end described pre-dirt plate (12) is provided with the deflector (17) tilted along airintake direction, and is fixed with balancing weight (16) pre-dirt plate (12) on the side of air inlet pipe (22)；nullDescribed filter bag (19) includes outer bag (1)、It is arranged on the internal inner bag (2) of outer bag (1) and the truncated cone-shaped skeleton (3) being arranged on inner bag (2) inwall，Between described outer bag (1) and inner bag (2), annular space forms auxiliary air runner，Bag (1) upper end has the gas outlet (4) being connected with auxiliary air runner outside，The cylinder (5) of one end open is installed between inner bag (2) bottom and outer bag (1) bottom，The open end of described cylinder (5) is internal with inner bag (2) to be connected，Cylinder (5) two side all has the pore (6) connected with auxiliary air runner，Slide block (7) is slidably arranged in cylinder (5)，In slide block (7) bottom, spring (8) is installed，When inner bag (2) is in normal condition，Spring (8) forms support and makes inner bag (2) internal and be separated between auxiliary air runner slide block (7)；The stopper slot (9) of annular is had at described cylinder (5) inwall, described pore (6) is arranged on stopper slot (9) middle part, slide block (7) is slidably arranged in stopper slot (9), and be separately installed with semicircular elastic protrusion (10) at described slide block (7) upper surface two end points with lower surface, and the diameter of described elastic protrusion (10) is identical with the groove depth size of stopper slot (9)；Described skeleton (3) includes the framework (34) being made up of quoit and metallic rod and is fixed on two U-shapeds on framework (34) top and buckles (32), buckling the reinforcement (31) being provided with and buckling the L-shaped that (32) match on (32) inwall, and on described reinforcement (31) lower end outer wall, be provided with engaging portion (33) outwardly, and it is provided with, buckling, the snap groove matched with engaging portion (33) on (32) inwall.

A kind of pulsed jet cloth filter the most according to claim 1, it is characterized in that: have stopper slot (15) in the upper end of described balancing weight (16), connecting rod (14) it is hinged with at the top of described filter chamber, and at the end of connecting rod (14), roller being installed, described roller-coaster is arranged in stopper slot (15).

A kind of pulsed jet cloth filter the most according to claim 1, it is characterized in that: condenser (23) is installed on the sidewall of described casing (21), the gas outlet of described condenser (23) connects with filter chamber, and the air inlet of condenser (23) connects with air inlet pipe (22).

A kind of pulsed jet cloth filter the most according to claim 1, it is characterised in that: the bottom of described casing (21) is provided with revolving valve (20).

A kind of pulsed jet cloth filter the most according to claim 1, it is characterised in that: described filter bag (19) is basalt filter bag.