CN113332804A

CN113332804A - Bag type dust collector

Info

Publication number: CN113332804A
Application number: CN202110781179.9A
Authority: CN
Inventors: 吴荣主
Original assignee: Shanghai Zechao Industrial Co ltd
Current assignee: Shanghai Zechao Industrial Co ltd
Priority date: 2021-07-10
Filing date: 2021-07-10
Publication date: 2021-09-03
Anticipated expiration: 2041-07-10
Also published as: CN113332804B

Abstract

The application discloses a bag type dust collector which comprises an air inducing device and a plurality of filter cloth bags communicated with the air inducing device, wherein an intermittent air supply device used for intermittently conveying dust-containing air into the filter cloth bags is arranged between the air inducing device and the filter cloth bags; the bag-clamping device comprises two clamping plates, the two clamping plates are arranged in a row, two sides of the filtering bag are arranged in parallel, driving mechanisms used for driving the two clamping plates to be close to or far away from each other are arranged on the clamping plates, and lifting mechanisms used for driving the two clamping plates to reciprocate are arranged on the frame body. This application has the effect that can avoid the secondary raise dust, can also avoid filtering the sack to block up.

Description

Bag type dust collector

Technical Field

The invention relates to the field of dust removing equipment, in particular to a bag type dust remover.

Background

In the industries of grain storage, coal production, stone processing, building material production and the like, a large amount of dust or dirt can be generated in the production or processing process, if the powder is directly discharged into the atmosphere, the atmospheric environment can be seriously polluted, the powder overflows and scatters in a workshop, the health of workers is seriously influenced, and the phenomenon of flash explosion can be caused when the powder reaches a certain concentration.

In the related art, chinese patent with application number CN202010265523.4 proposes a high-efficiency clean type bag dust collector, which includes an air inducing device for introducing air containing dust; the filter cloth bags are multiple in number, are communicated with the air inducing device and are used for filtering dust-containing air; the air exhaust pipeline is communicated with the filtering cloth bag and is used for exhausting the filtered dust-containing air; the dust collecting device is communicated with the filter cloth bag and is used for collecting the dust filtered out by the filter cloth bag; and the dust discharging device is arranged at the bottom of the dust collecting device and used for outputting the dust in the dust collecting device outwards. The invention does not need to add extra cloth bag cleaning equipment, can clean the surface of the filter cloth bag by wind power, ensures that dust is not attached to the surface of the filter cloth bag and is not blocked, and keeps good ventilation effect of the filter cloth bag.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: the dust-containing air is easy to raise dust collected by the dust collecting device again in the process of continuously introducing the dust-containing air into the filter cloth bag, and the raised dust is mixed with the dust-containing air again, so that the filter cloth bag is continuously kept on a higher filter load, the bag surface of the filter cloth bag is very easy to have the phenomenon of dust blockage, and the dust removal efficiency of the bag type dust collector is seriously influenced.

Disclosure of Invention

In order to improve the problem that secondary raise dust influences bag dust removal bag dust collection efficiency, this application provides a bag collector.

The application provides a bag collector adopts following technical scheme:

a bag type dust collector comprises an air inducing device and a plurality of filter cloth bags communicated with the air inducing device, wherein an intermittent air supply device used for intermittently conveying dust-containing air into the filter cloth bags is arranged between the air inducing device and the plurality of filter cloth bags;

the bag-clamping device comprises two clamping plates, the two clamping plates are arranged in a row, two sides of the filtering bag are arranged in parallel, driving mechanisms used for driving the two clamping plates to be close to or far away from each other are arranged on the clamping plates, and lifting mechanisms used for driving the two clamping plates to reciprocate are arranged on the frame body.

By adopting the technical scheme, the intermittent air supply device conveys dust-containing air into the plurality of filter cloth bags through the air inducing device, clean air passes through pores of the filter cloth bags under the filtration of the filter cloth bags and is discharged, and dust is retained in the filter cloth bags; intermittent type air supply arrangement stops the air supply afterwards, elevating system orders about two splint synchronous rising to filtering cloth bag top, actuating mechanism orders about two splint and is close to each other and press from both sides tightly filtering cloth bag, elevating system orders about two splint simultaneously down afterwards, thereby two splint press from both sides tight filtering cloth bag and move down along filtering cloth bag outer wall, can extrude the dirty air in the filtering cloth bag as far as possible, with the filtration efficiency of improvement filtering cloth bag to dirty air, move down to being close filtering cloth bag lower extreme when two splint, the dust in the filtering cloth bag is all gathered at filtering cloth bag lower extreme this moment.

Keep two splint to the centre gripping of filtering cloth bag, intermittent type air supply arrangement starts and to carrying dirty air in the filtering cloth bag, can reduce the secondary raise dust phenomenon in the filtering cloth bag by a wide margin this moment, actuating mechanism orders about two splint and keeps away from afterwards, elevating system orders about two splint and shifts up, repeat above-mentioned step again, can fully filter the dirty air in the filtering cloth bag, and the in-process that moves down is pressed from both sides at two splint, the tiny dust of adhesion on filtering cloth bag wall also can be brushed down as far as possible, the possibility that the jam took place for the filtering cloth bag has effectively been reduced, show the dust collection efficiency who has improved bag collector, and can also effectively prevent the secondary raise dust, be applicable to various production occasions.

Optionally, two all be provided with a plurality of pole of rubbing with the hands on the adjacent lateral wall of splint, it is a plurality of to rub with the hands pole relative setting and be the setting of staggering.

Through adopting above-mentioned technical scheme, when two splint were close to each other, establish a plurality of poles of rubbing with the hands on two splint crisscross in proper order, improved two clamp plates to the extrusion efficiency of the interior dusty air of filter cloth bag, also make the adhesion dust on filter cloth bag wall can be scraped as far as simultaneously, improved the filtration efficiency of filter cloth bag to dusty air.

Optionally, one end of the rubbing rod, which is far away from the adjacent clamping plate, is provided with a round angle.

By adopting the technical scheme, when the rubbing rods clamp the filter cloth bag in a staggered manner, the filter cloth bag can slide smoothly relative to each other between the two clamping plates, so that excessive pulling of the filter cloth bag when the two clamping plates move downwards is avoided as far as possible.

Optionally, the rubbing rod is rotatably arranged on the clamping plate.

Optionally, the bag clamping device is further including sliding the setting two slides on the support body, two the both ends of splint are equallyd divide and are slided the setting respectively and be in on the slide, actuating mechanism sets up on the slide.

Through adopting above-mentioned technical scheme, two slides can carry out effective bearing to the tip of two splint to it is more stable when keeping away from each other that actuating mechanism orders about two splint.

Optionally, the driving mechanism is a driving member for independently driving the two clamping plates to approach or separate from each other.

By adopting the technical scheme, the driving piece directly drives one of the clamping plates to do linear motion towards the other clamping plate or simultaneously drives the two clamping plates to do linear motion simultaneously, so that the two clamping plates can be quickly closed or opened.

Optionally, the driving mechanism includes a linkage assembly disposed on the slide carriage, and when the slide carriage moves up on the frame body, the two clamping plates are opened by the linkage assembly; when the sliding seat moves up and down on the frame body, the two clamping plates are folded through the linkage assembly.

Through adopting above-mentioned technical scheme, when elevating system ordered about the slide and rises or descend, the accessible linkage subassembly realizes opening in step or fold in step of two splint, need not to set up alone and judge and order about controller and the power spare that two splint kept away from each other or are close to according to the rising or the decline condition of slide, and the fault-tolerant rate is higher, has more the practicality.

Optionally, the splint are close to the one end of slide articulates there is the connecting rod, and two of the same end the connecting rod is kept away from the one end of splint articulates jointly has the hinge post, the linkage subassembly is used for driving about the hinge post is kept away from or is close to splint.

Through adopting above-mentioned technical scheme, the linkage subassembly is through driving about the hinge post and sliding on the slide, can realize that the synchronization of two splint is close to or is kept away from, has effectively reduced the actual stroke that the linkage subassembly needs to be used when two splint open or fold.

Optionally, the linkage assembly includes a first rack vertically disposed on the frame, the sliding seat horizontally rotates a rotating shaft, an end of the rotating shaft is fixedly connected with a shift lever perpendicular to the rotating shaft and along a radial direction of the rotating shaft, and one end of the shift lever far away from the rotating shaft is fitted with a tooth groove of the first rack;

the coaxial rigid coupling has the gear in the pivot, slide on the slide be provided with the second rack of gear engagement adaptation, the hinge post rigid coupling is in on the second rack.

Through adopting above-mentioned technical scheme, when elevating system ordered about the slide and moved up, the driving lever overturned down under stirring of the tooth portion of first rack, and then drive the gear rotation, and make the second rack with it meshing be close to towards splint, the hinge post promotes two splint through two connecting rods and keeps away from each other this moment, along with the continuous rising of slide, the driving lever keeps the trend at the downward sloping as far as possible under stirring of a plurality of tooth portions of first rack, so that two splint can open as far as possible and do benefit to the two and filter the outside action that shifts up of sack.

When elevating system ordered about the slide and moved down, the driving lever overturns up under stirring of the tooth portion of first rack, and then it is rotatory to drive the gear, and make the second rack with it meshing keep away from splint, the hinge post is close to each other in order to carry out the centre gripping to filtering the sack through two splint of two connecting rod pulling this moment, along with the lasting lapse of slide, the driving lever keeps the trend at the tilt up as far as possible under stirring of a plurality of tooth portions of first rack, so that two splint can carry out the centre gripping to filtering the sack as far as possible, ensure two splint to the squeezing action of the interior dusty air of filtering the sack and to filtering the clearance effect of sack.

Optionally, the intermittent air supply device comprises a buffer tank connected to the air inducing device, the filter cloth bags are connected with an air supply pipe together, and a pulse pump is connected between the air supply pipe and the buffer tank.

By adopting the technical scheme, the air inducing device continuously conveys dust-containing air into the buffer box, and when the bag clamping device cleans the filter cloth bag, the pulse pump stops conveying air; when the bag clamping device clamps the lower end parts of the filter cloth bags, the pulse pump leads dust-containing air in the buffer tank into the plurality of filter cloth bags, and the secondary dust raising prevention effect of the bag clamping device can be ensured.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the intermittent air supply device intermittently conveys dust-containing air into the plurality of filter cloth bags, the driving mechanism drives the two clamping plates to mutually approach and clamp the filter cloth bags, then the lifting mechanism drives the two clamping plates to synchronously move downwards, the dust-containing air in the filter cloth bags can be extruded as far as possible, so that the filtering efficiency of the filter cloth bags on the dust-containing air is improved, the clamping of the two clamping plates on the filter cloth bags is kept, the intermittent air supply device is started and conveys the dust-containing air into the filter cloth bags, and at the moment, the secondary dust raising phenomenon in the filter cloth bags can be greatly reduced; in the process that the two clamping plates are clamped and move downwards, fine dust adhered to the bag wall of the filter cloth bag can be brushed down as much as possible, the possibility of blockage of the filter cloth bag is effectively reduced, and the dust removal efficiency of the bag type dust collector is obviously improved;

2. when the two clamping plates are close to each other, the rubbing rods arranged on the two clamping plates are staggered in sequence, so that the squeezing efficiency of the two pressing plates on the dust-containing air in the filter cloth bag is improved, and meanwhile, dust adhered to the bag wall of the filter cloth bag can be scraped off as much as possible, so that the filtering efficiency of the filter cloth bag on the dust-containing air is improved;

3. the linkage assembly can realize synchronous approaching or separating of the two clamping plates by driving the hinge post to slide on the sliding seat, and the actual stroke of the linkage assembly required to be acted when the two clamping plates are opened or closed is effectively reduced.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a display bag clamping device according to an embodiment of the present application.

Fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.

Reference numerals: 1. an air inducing device; 2. a filter cloth bag; 3. a frame body; 4. a splint; 41. twisting the rod; 42. a connecting rod; 43. hinging the column; 5. a slide base; 521. a first rack; 522. a rotating shaft; 523. a deflector rod; 524. a gear; 525. a second rack; 61. a buffer tank; 62. an air supply pipe; 63. a pulse pump; 71. a screw; 72. a guide rod.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a bag type dust collector. Referring to fig. 1, a bag collector includes induced draft device 1, a plurality of filter bags 2 and support body 3 with induced draft device 1 intercommunication, and filter bag 2 hoists on support body 3, is provided with the intermittent type air supply arrangement who is used for the intermittent type to carry the dirty air to filter bag 2 between induced draft device 1 and a plurality of filter bags 2, and induced draft device 1 is including the dust cage that is used for album dirt, the collection tuber pipe that communicates with the dust cage and install the fan on the tuber pipe. During actual installation, the plurality of filter cloth bags 2 are arranged in two or more rows, and the distance between two adjacent rows of filter cloth bags 2 is larger than the distance between two adjacent filter cloth bags 2 in the same row.

In one possible embodiment, the intermittent air supply device comprises a buffer tank 61 connected with an air outlet of the fan in the air inducing device 1, an air supply pipe 62 is connected with the plurality of filter cloth bags 2 together, and a pulse pump 63 is connected between the air supply pipe 62 and the buffer tank 61. The air inducing device 1 continuously conveys the dust-containing air into the buffer tank 61, and the intermittent conveying of the dust-containing air can be realized through the intermittent starting of the pulse pump 63.

In another feasible embodiment, the intermittent air supply device comprises a plurality of air distribution pipes connected with the air outlet of the fan in the air inducing device 1, the number of the air distribution pipes is equal to the number of the rows of the plurality of filter cloth bags 2, the air distribution pipes are simultaneously communicated with the plurality of filter cloth bags 2 in the corresponding rows, and electromagnetic valves are arranged on the air distribution pipes. When the air inducing device 1 continuously conveys the dust-containing air to the plurality of branch air pipes, the corresponding electromagnetic valves can be opened and closed to realize the intermittent air inlet effect of the single-row plurality of filter cloth bags 2.

For avoid intermittent type air supply arrangement to take place secondary raise dust phenomenon in the filter cloth bag 2 when carrying dusty air in the filter cloth bag 2, refer to fig. 1 and fig. 2, 3 ascending drops of support body are provided with the sackholder device, the sackholder device includes two splint 4, two splint 4 divide the both sides of single-row filter cloth bag 2 array orientation and be two splint 4 and be parallel arrangement, be provided with on the splint 4 and be used for ordering about the actuating mechanism that two splint 4 are close to each other or keep away from, be provided with the elevating system who is used for driving two splint 4 reciprocal lifts simultaneously on the support body 3.

After the intermittent air supply device conveys the dust-containing air to the plurality of filter cloth bags 2, the clean air passes through the pores of the filter cloth bags 2 and is discharged under the filtration of the filter cloth bags 2, and the dust is retained in the filter cloth bags 2; intermittent type air supply arrangement stops to supply air in this filtration sack 2 afterwards, elevating system orders about two splint 4 synchronous ascents to 2 tops of filtration sack, actuating mechanism orders about two splint 4 and is close to each other and press from both sides tightly filtration sack 2, elevating system orders about two splint 4 synchronous downshifts afterwards, thereby two splint 4 press from both sides tight filtration sack 2 and move down along filtering sack 2 outer wall, can extrude the dirty air in filtration sack 2 as far as possible, with the filtration efficiency of 2 pairs of dirty air of improvement filtration sack, move down to being close filtration sack 2 lower extreme when two splint 4, the dust in the filtration sack 2 this moment is all gathered at the lower tip of filtration sack 2.

Keep two splint 4 to the centre gripping of filtering sack 2, intermittent type air supply arrangement starts and to carrying the dirty air in filtering sack 2, can reduce the secondary raise dust phenomenon in filtering sack 2 by a wide margin this moment, actuating mechanism orders about two splint 4 afterwards and keeps away from, elevating system orders about two splint 4 and shifts up, repeat above-mentioned step again, can fully filter the dirty air in filtering sack 2, and the in-process that moves down is pressed from both sides at two splint 4, the tiny dust of adhesion on filtering sack 2 bag wall also can be brushed down as far as possible, effectively reduced and filtered sack 2 and taken place the possibility of blockking up, show the dust collection efficiency who has improved bag collector, and can also effectively prevent the secondary raise dust, be applicable to various production occasions.

In order to further improve the squeezing and cleaning effects of the two clamping plates 4 on the filter cloth bag 2 when clamping and moving down the filter cloth bag 2, referring to fig. 2 and 3, a plurality of rubbing rods 41 are arranged on the adjacent side walls of the two clamping plates 4, and the rubbing rods 41 which are arranged oppositely are arranged in a staggered manner. Thereby when two splint 4 are close to each other, establish a plurality of pole 41 of rubbing with the hands on two splint 4 and crisscross in proper order, improved two clamp plates and to the extrusion efficiency of the interior dusty air of filter cloth bag 2, also make the dust of adhesion on the bag wall of filter cloth bag 2 can be scraped as far as simultaneously, improved the filtration efficiency of filter cloth bag 2 to dusty air.

In one possible embodiment, the ends of the twine bars 41 remote from the adjacent clamping plate 4 are each provided with a rounded corner.

In another possible embodiment, the twine bar 41 is rotatably provided on the clamping plate 4.

The two embodiments can realize that when the rubbing rods 41 clamp the filter cloth bag 2 in a staggered manner, the filter cloth bag 2 can slide smoothly relative to each other between the two clamping plates 4, so that excessive pulling of the filter cloth bag 2 when the two clamping plates 4 move downwards is avoided as much as possible. In the examples of the present application, the principle of the present application will be described using the second embodiment.

Referring to fig. 2 and 3, the bag clamping device further includes two sliding seats 5 slidably disposed on the frame body 3, two ends of the two clamping plates 4 are slidably disposed on the sliding seats 5, respectively, and the driving mechanism is disposed on the sliding seats 5. The lifting device comprises a screw 71 vertically rotatably arranged on the frame body 3 and a guide rod 72 vertically fixedly connected to the frame body 3, the screw 71 is threaded through one end of the sliding seat 5, the guide rod 72 is threaded through the other end of the sliding seat 5, and the frame body 3 is fixedly connected with a lifting motor of which the output end is coaxially fixedly connected with the screw 71.

In a possible embodiment, the driving mechanism is a driving member for independently driving the two clamping plates 4 to approach or separate from each other, specifically, the driving member may be a cylinder, a hydraulic cylinder or an electric push rod fixedly connected to one of the clamping plates 4, and a piston rod of the driving member penetrates through the clamping plate 4 and is fixedly connected to the other clamping plate 4, so that the two clamping plates 4 can directly approach or separate from each other.

The driving piece can also be a motor fixedly connected on one clamping plate 4 and a threaded rod fixedly connected on the output end of the motor, and the threaded rod penetrates through the clamping plate 4 and is in threaded connection with the other clamping plate 4.

Or the driving part can also be a motor fixedly connected on the sliding seat 5 and a double-threaded rod fixedly connected on the output end of the motor, and two ends of the double-threaded rod respectively penetrate through the two clamping plates 4 in a threaded manner.

In another possible embodiment, with reference to fig. 2 and 3, the driving mechanism comprises a linkage assembly provided on the slide 5, by means of which the two jaws 4 are spread apart when the slide 5 is moved upwards on the shelf 3; when the sliding seat 5 moves up and down on the frame body 3, the two clamping plates 4 are closed through the linkage assembly, one ends, close to the sliding seat 5, of the clamping plates 4 are hinged with the connecting rods 42, one ends, far away from the clamping plates 4, of the two connecting rods 42 at the same end are hinged with the hinge posts 43 together, and the linkage assembly is used for driving the hinge posts 43 to be far away from or close to the clamping plates 4.

Specifically, the linkage assembly includes a first rack 521 vertically disposed on the frame 3, a rotating shaft 522 horizontally rotated on the sliding seat 5, a shift lever 523 perpendicular to and along a radial direction of the rotating shaft 522 fixedly connected to an end of the rotating shaft 522, and an end of the shift lever 523 away from the rotating shaft 522 is fitted to a tooth groove of the first rack 521.

In order to realize that the hinge post 43 can slide along with the rotation of the rotating shaft 522, a gear 524 is coaxially and fixedly connected to the rotating shaft 522, a second rack 525 meshed and matched with the gear 524 is slidably arranged on the sliding seat 5, and the hinge post 43 is fixedly connected to the second rack 525. The working principle of the present application is elaborated in detail by using the embodiment of the present application.

When the lifting mechanism drives the sliding seat 5 to move upwards, the deflector rod 523 is stirred downwards to turn downwards by the teeth of the first rack 521, so as to drive the gear 524 to rotate, and the second rack 525 meshed with the gear is close to the clamping plate 4, at this time, the hinge column 43 pushes the two clamping plates 4 to be away from each other through the two connecting rods 42, and along with the continuous rising of the sliding seat 5, the deflector rod 523 keeps a downward inclination trend as much as possible under the stirring of the teeth of the first rack 521, so that the two clamping plates 4 can be opened as much as possible, and the upward movement of the two clamping plates outside the filter cloth bag 2 is facilitated.

When the lifting mechanism drives the sliding seat 5 to move downwards, the shifting rod 523 is stirred by the tooth parts of the first rack 521 to turn upwards, the gear 524 is further driven to rotate, the second rack 525 meshed with the gear is far away from the clamping plate 4, the hinge post 43 pulls the two clamping plates 4 to approach each other through the two connecting rods 42 to clamp the filtering cloth bag 2, the shifting rod 523 keeps the upward inclination trend as much as possible under the stirring of the tooth parts of the first rack 521 along with the continuous downward movement of the sliding seat 5, the filtering cloth bag 2 can be clamped by the two clamping plates 4 as much as possible, and the squeezing effect of the dust-containing air in the filtering cloth bag 2 and the cleaning effect of the filtering cloth bag 2 by the two clamping plates 4 are ensured.

In order to realize that the hinge post 43 can slide along with the rotation of the rotating shaft 522, in other embodiments, a winding roller is coaxially and fixedly connected to the rotating shaft 522, a traction rope is wound on the winding roller, the free end of the traction rope is fixedly connected to the hinge post 43, and a compression spring is connected between the two connecting rods 42 so that the two connecting rods 42 can be smoothly opened. When the pulling rope is wound on the winding roller, the pulling rod 523 needs to rotate to the upward inclined process, and the winding roller can wind the pulling rope.

Thus, when the slide 5 drives the two clamp plates 4 to move downwards, the shift lever 523 rotates to incline upwards under the pushing of the first rack 521, the traction rope is wound around the winding roller, the traction rope pulling hinge column 43 is far away from the clamp plates 4, and the two clamp plates 4 are close to each other to clamp the filter cloth bag 2.

The implementation principle of the bag type dust collector in the embodiment of the application is as follows: after the intermittent air supply device conveys dust-containing air to the plurality of filter cloth bags 2, the two screws 71 are simultaneously rotated to drive the two sliding seats 5 to drive the two clamping plates 4 to synchronously ascend to the top ends of the filter cloth bags 2, and the two clamping plates 4 are mutually far away from each other in the process so as to be beneficial to the ascending movement of the two clamping plates 4. Then, the two sliding seats 5 are driven to move downwards, the deflector rod 523 drives the second rack 525 to be away from the clamping plate 4 under the stirring action of the tooth part on the first rack 521, and the two clamping plates 4 are close to each other to clamp the filter cloth bag 2, so that the two clamping plates 4 clamp the filter cloth bag 2 and move downwards along the outer wall of the filter cloth bag 2, the dust-containing air in the filter cloth bag 2 can be squeezed out as far as possible, and the filtering efficiency of the filter cloth bag 2 on the dust-containing air is improved; in addition, in the process that the two clamping plates 4 clamp the filtering cloth bag 2 and move downwards, fine dust adhered to the bag wall of the filtering cloth bag 2 can be brushed down as much as possible, the possibility of blockage of the filtering cloth bag 2 is effectively reduced, and the dust removal efficiency of the bag type dust collector is obviously improved.

Then, the two clamping plates 4 are kept to clamp the filter cloth bag 2, the intermittent air supply device is started and conveys dust-containing air into the filter cloth bag 2, and the secondary dust raising phenomenon in the filter cloth bag 2 can be greatly reduced; then the two clamping plates 4 are driven to move upwards, and the steps are repeated, so that the dust-containing air in the filter cloth bag 2 can be fully filtered.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a bag collector, includes induced air device (1) and with a plurality of filter cloth bags (2) of induced air device (1) intercommunication, its characterized in that: an intermittent air supply device for intermittently conveying dust-containing air into the filter cloth bags (2) is arranged between the air inducing device (1) and the filter cloth bags (2);

still include support body (3), it is in to filter sack (2) hoist and mount on support body (3), the ascending and descending of support body (3) is provided with the sackholder device, the sackholder device includes two splint (4), two splint (4) are listed as separately filter sack (2) both sides and be parallel arrangement, be provided with on splint (4) and be used for ordering about two drive mechanism that splint (4) are close to each other or keep away from, be provided with on support body (3) and be used for driving two simultaneously the elevating system of splint (4) reciprocal lift.

2. A bag house as defined in claim 1, wherein: two all be provided with a plurality of pole (41) of rubbing with the hands on the adjacent lateral wall of splint (4), a plurality of the pole (41) of rubbing with the hands of relative setting are the setting of staggering.

3. A bag house as defined in claim 2, wherein: and one end of the rubbing rod (41) far away from the adjacent clamping plate (4) is provided with a round angle.

4. A bag house as defined in claim 2, wherein: the twisting rod (41) is rotatably arranged on the clamping plate (4).

5. A bag house as defined in any one of claims 2 to 4, wherein: press from both sides the bagging apparatus and still including sliding the setting two slide (5) on support body (3), two the both ends of splint (4) are equallyd divide and are slided the setting respectively and be in on slide (5), actuating mechanism sets up on slide (5).

6. A bag house as defined in claim 5, wherein: the driving mechanism is a driving piece which independently drives the two clamping plates (4) to approach or separate from each other.

7. A bag house as defined in claim 5, wherein: the driving mechanism comprises a linkage assembly arranged on the sliding seat (5), and when the sliding seat (5) moves upwards on the frame body (3), the two clamping plates (4) are opened through the linkage assembly; when the sliding seat (5) moves up and down the frame body (3), the two clamping plates (4) are folded through the linkage assembly.

8. A bag house as defined in claim 7, wherein: splint (4) are close to the one end of slide (5) articulates there is connecting rod (42), two of the same end connecting rod (42) are kept away from the one end of splint (4) articulates jointly has hinge post (43), the linkage subassembly is used for driving about hinge post (43) are kept away from or are close to splint (4).

9. A bag house as defined in claim 8, wherein: the linkage assembly comprises a first rack (521) vertically arranged on the frame body (3), a rotating shaft (522) horizontally rotates on the sliding seat (5), a shifting lever (523) which is perpendicular to the rotating shaft and along the radial direction of the rotating shaft is fixedly connected to the end part of the rotating shaft (522), and one end, far away from the rotating shaft (522), of the shifting lever (523) is in embedded fit with a tooth groove of the first rack (521);

coaxial rigid coupling has gear (524) on pivot (522), slide on slide (5) be provided with second rack (525) of gear (524) meshing adaptation, hinge post (43) rigid coupling is in on second rack (525).

10. A bag house as defined in claim 1, wherein: the intermittent air supply device comprises a buffer tank (61) connected to the air inducing device (1), a plurality of filter cloth bags (2) are jointly connected with an air supply pipe (62), and a pulse pump (63) is connected between the air supply pipe (62) and the buffer tank (61).