Bag-type dust collector

Abstract

The invention discloses a bag-type dust collector, and relates to the technical field of dust collection equipment, the bag-type dust collector comprises a filter box, a bag filter mechanism and a pulse cleaning mechanism, the bag filter mechanism and the pulse cleaning mechanism are arranged in the filter box, and the pulse cleaning mechanism is arranged above the bag filter mechanism; the cloth bag filtering mechanism comprises a plurality of filtering bags for filtering dust-containing gas; the bag-type dust collector further comprises an isolation mechanism used for pushing the damaged filter bag to be compressed and folded in the axial direction of the bag-type dust collector. By arranging the isolation mechanism, when the side face of the filter bag is damaged, the winding mechanism pulls the connecting rope to be wound, the filter bag can be compressed and folded, the damaged filter bag is completely isolated, dust-containing gas cannot be directly guided out through the damaged filter bag, and normal filtering work of other filter bags is not affected; therefore, the bag-type dust collector can continuously filter.

Description

Technical Field

[0001] The invention relates to the technical field of dust removal equipment, and in particular to a bag dust collector. Background Art

[0002] A bag dust collector is a dry dust filtering device that uses textile filter cloth or non-textile felt to make filter bags, and uses the filtering effect of these fiber materials to treat dust-containing gases. When the dust-containing gas enters the bag dust collector, the larger and denser dust is deposited in the ash hopper under the action of gravity; while the gas containing fine dust is intercepted when passing through the filter material, thereby achieving gas purification.

[0003] In the prior art, bag dust collectors generally use a combination of multiple filter bags for filtering together. When the filter bag is damaged, the dust-containing gas will enter the filter bag and the upper clean air chamber from the damaged part of the filter bag, so it is necessary to stop the machine immediately for replacement.

[0004] The above-mentioned bag dust collector still has the following defects when in use: When the filter bag is damaged and needs to be replaced, although the shutdown will prevent the dust-laden gas from continuing to enter, the dust will still diffuse in the filter box due to the inertia of the gas flow; directly replacing the filter bag at this time is likely to cause dust to leak into the external environment, increasing the risk of workers being exposed to dust; and by leaving it alone to wait for the dust to settle, it will result in a long period of inability to filter, affecting the dust removal efficiency. Summary of the invention

[0005] In order to overcome the above technical problems, the purpose of the present invention is to provide a bag filter to solve the problem that the filter bag of the existing bag filter mentioned in the above background technology cannot be handled in time when it is damaged, thus affecting the dust removal efficiency.

[0006] The purpose of the present invention can be achieved through the following technical solutions: A bag filter comprises a filter box, a bag filter mechanism and a pulse cleaning mechanism arranged in the filter box, wherein the pulse cleaning mechanism is arranged above the bag filter mechanism; the bag filter mechanism comprises a plurality of filter bags for filtering dust-containing gas; the bag filter also comprises an isolation mechanism for pushing a damaged filter bag to be compressed and folded along its axial direction; the isolation mechanism comprises: A plurality of mounting rings, wherein the plurality of mounting rings are arranged equidistantly along the inner wall of the filter bag; At least one pair of connecting ropes, at least one pair of connecting ropes are arranged along the axis direction of the filter bag, one end of the connecting rope passes through a plurality of mounting rings and is connected to the mounting ring connected to the bottom of the filter bag; A plurality of springs, wherein the springs are sleeved on the connecting rope, a spring is arranged between each of the adjacent mounting rings, and both ends of the springs are in contact with each other between the adjacent mounting rings; And a reeling mechanism, the reeling mechanism is arranged in the filter box, the other end of the connecting rope is connected to the reeling mechanism; the reeling mechanism is used to reel in the connecting rope to drive the filter bag to be compressed.

[0007] Preferably, the winding mechanism includes a winding disk, a guide mechanism and a first driving mechanism; the winding disk is arranged in the filter box, the guide mechanism is arranged on the winding disk, one end of the connecting rope passes through the guide mechanism and is wound around the winding disk, and the first driving mechanism is arranged in the filter box; the first driving mechanism is used to drive the winding disk to rotate so as to wind up the connecting rope.

[0008] Preferably, the guide mechanism comprises a pulley and a guide block; the pulley is arranged in the filter box, and the connecting rope contacts the pulley; the pulley is used to provide guidance for the movement of the connecting rope, the guide block is arranged on the winding disk, and one end of the connecting rope passes through the guide block and is wound around the winding disk; The winding disk is provided with an annular groove, the guide block is provided with a slider, the slider is slidably connected to the annular groove, and the slider is a cylindrical structure, and the guide block can rotate along the axis of the cylindrical structure.

[0009] Preferably, the first driving mechanism includes a first motor, a worm and a worm wheel; the first motor is installed in the filter box, and the output end of the first motor is coaxially connected to the worm; the first motor is used to drive the worm to rotate along its axis; the worm wheel is coaxially fixed to the winding disk, and the worm is meshed with the worm wheel.

[0010] Preferably, the isolation mechanism further comprises a control mechanism; the control mechanism is used to control the local compression of the filter bag.

[0011] Preferably, the control mechanism includes a guide shaft, a second driving mechanism, a plurality of first protrusions and a second protrusion; one end of the guide shaft is rotatably connected to the filter box, a through hole is provided on the mounting ring, the other end of the guide shaft passes through the through holes on the plurality of mounting rings and is rotatably connected to the mounting ring connected to the bottom of the filter bag, a plurality of the first protrusions are arranged on the guide shaft, and the projections of the plurality of the first protrusions along the axial direction of the guide shaft overlap, a second protrusion is arranged in the through hole on each of the mounting rings, the plurality of second protrusions are arranged at equal intervals along the circumference of the guide shaft, and the projections of the plurality of second protrusions along the axial direction of the guide shaft form a circular ring structure; the second driving mechanism is arranged in the filter box, and the second driving mechanism is used to drive the guide shaft to rotate along its axis.

[0012] Preferably, the second driving mechanism comprises a belt, a second mounting plate, a second motor, a second rotating wheel and two first rotating wheels; the control mechanism comprises a pair of guide shafts, the two first rotating wheels are coaxially arranged on the pair of guide shafts respectively, the belt is tensioned on the pair of guide shafts, the second mounting plate is arranged in the filter box, the second motor is mounted on the second mounting plate, the output end of the second motor is provided with a second rotating wheel, and the second rotating wheel and the pair of the first rotating wheels are tensioned on the same belt; the second motor is used to drive the second rotating wheel to rotate, so as to drive the belt transmission; A guide wheel is rotatably connected in the filter box, and the guide wheel contacts the belt; the guide wheel is used to provide guidance for the transmission of the belt.

[0013] Preferably, the bag filter mechanism further comprises an inlet pipe and an outlet pipe arranged on the filter box; a first mounting plate is arranged in the filter box, a plurality of the filter bags are arranged on the first mounting plate, the first mounting plate is used to separate the interior of the filter box into two upper and lower chambers, the inlet pipe is connected to the chamber located at the lower side, and the outlet pipe is connected to the chamber located at the upper side; a plurality of venturi tubes are arranged on the first mounting plate, and each of the venturi tubes is connected to the top of each of the filter bags; The reel is sleeved on the venturi tube, and the reel is rotatably connected to the first mounting plate along its axis; the pulley, the first motor and the second mounting plate are all arranged on the first mounting plate; one end of the guide shaft is rotatably connected to the first mounting plate along its axis.

[0014] Preferably, the pulse cleaning mechanism includes a nozzle and a plurality of nozzles; the nozzle is arranged in a chamber located above the filter box, the plurality of nozzles are connected to the nozzle, and the plurality of nozzles are arranged above the venturi.

[0015] Preferably, a protective cover is provided on the first mounting plate, and the retracting mechanism is arranged inside the protective cover.

[0016] Beneficial effects of the present invention: 1. By setting up an isolation mechanism, that is, when the side of the filter bag is damaged, the filter bag can be compressed and folded by pulling the connecting rope through the reeling mechanism, so that the damaged filter bag is completely isolated, so that the dust-containing gas will not be directly discharged through the damaged filter bag, and will not affect the normal filtering work of other filter bags, so that the bag dust collector can continue to filter; 2. By setting up a control mechanism, when a part of a filter bag is damaged, the damaged part of the filter bag is driven to be compressed upward by the control mechanism, so as to seal the damaged part, so that the dust-containing gas cannot enter the filter bag through the damaged part; and the area below the damaged part of the filter bag is still in a normal expanded state, that is, the area below the damaged part of the filter bag can still perform normal filtering work at this time; the utilization rate of the filter bag is improved, so that when local damage occurs, the impact on the overall filtering effect can be minimized to ensure the filtering efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of a partially cutaway three-dimensional structure of the present invention; Figure 3 It is a three-dimensional enlarged structural schematic diagram of the isolation mechanism of the present invention; Figure 4 The present invention Figure 3 A three-dimensional enlarged structural diagram after the filter bag is removed; Figure 5 It is a three-dimensional enlarged structural schematic diagram of a partial structure of the isolation mechanism of the present invention; Figure 6 It is a three-dimensional enlarged structural schematic diagram of the winding reel of the present invention; Figure 7 It is a three-dimensional enlarged structural schematic diagram of the second driving mechanism of the present invention; Figure 8 It is a schematic diagram of a three-dimensional enlarged structure of the guide shaft of the present invention; Fig. 9 It is a schematic diagram of a three-dimensional enlarged structure of the mounting ring of the present invention; Fig.10 It is a three-dimensional enlarged structural schematic diagram of a plurality of mounting rings in a coaxially stacked state according to the present invention; Fig.11 It is a schematic diagram of an enlarged top view of the structure of a plurality of mounting rings of the present invention in a coaxially stacked state.

[0019] In the figure: 1. filter box; 2. bag filter mechanism; 21. inlet pipe; 22. outlet pipe; 23. first mounting plate; 24. venturi; 25. filter bag; 3. pulse cleaning mechanism; 31. nozzle; 32. nozzle; 4. protective cover; 5. isolation mechanism; 51. mounting ring; 52. connecting rope; 53. spring; 54. reeling mechanism; 541. reeling disc; 542. guide mechanism; 5421. pulley; 5422. guide block; 5423, annular groove; 543, first driving mechanism; 5431, first motor; 5432, worm; 5433, worm wheel; 55, control mechanism; 551, guide shaft; 552, first protrusion; 553, second protrusion; 554, second driving mechanism; 5541, first rotating wheel; 5542, belt; 5543, second mounting plate; 5544, second motor; 5545, second rotating wheel; 5546, guide wheel. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] like Figure 1-11 As shown, a bag dust collector, such as Figure 1-3 As shown, it includes a filter box 1 and a bag filter mechanism 2 and a pulse cleaning mechanism 3 arranged in the filter box 1, and the pulse cleaning mechanism 3 is arranged above the bag filter mechanism 2; the bag filter mechanism 2 includes a plurality of filter bags 25 for filtering dust-containing gas; the bag dust collector also includes an isolation mechanism 5 for pushing the damaged filter bag 25 to be compressed and folded along its axial direction; the isolation mechanism 5 includes: a plurality of mounting rings 51, and the plurality of mounting rings 51 are arranged at equal intervals along the axial direction of the inner wall of the filter bag 25; at least one pair of connecting ropes 52, and at least one pair of connecting ropes 52 are arranged along the filter bag 2 5 is arranged in the axial direction, one end of the connecting rope 52 passes through a plurality of mounting rings 51 and is connected to the mounting ring 51 connected to the bottom of the filter bag 25; a plurality of springs 53, the spring 53 is sleeved on the connecting rope 52, a spring 53 is arranged between each adjacent mounting ring 51, and the two ends of the spring 53 are in contact with the adjacent mounting rings 51; and a reeling mechanism 54, the reeling mechanism 54 is arranged in the filter box 1, and the other end of the connecting rope 52 is connected to the reeling mechanism 54; the reeling mechanism 54 is used to reel in the connecting rope 52 to drive the filter bag 25 to compress.

[0022] It should be noted that the side of the filter bag 25 is the main filtering part, and the part where wear occurs between adjacent filter bags 25 is generally the side. Therefore, the main damage position of the filter bag 25 is generally its side. Therefore, when the filter bag 25 is partially damaged, it is only necessary to compress and fold the side of the filter bag 25 to achieve isolation between the inside and outside of the filter bag 25. For use in special environments, the bottom of the filter bag 25 may be damaged. For example, the dust-containing gas introduced carries high-temperature particles, and the high-temperature particles contact the bottom of the filter bag 25 to cause damage to the bottom of the filter bag 25. For this situation, a partition can be set at the bottom of the filter bag 25 to directly abandon the filtration at the bottom of the filter bag 25. Since the filtration area at the bottom of the filter bag 25 is small, it has little effect on the overall filtration effect. The bottom filtration can be ignored, and it is suitable for use in an environment where the bottom of the filter bag 25 is easily damaged. It can be understood that the above-mentioned partition is a prior art, which is not drawn in the figure and will not be described in detail.

[0023] When the side of the filter bag 25 is damaged, the connecting rope 52 is pulled and rolled up by the reeling mechanism 54, so that the mounting ring 51 at the bottom of the filter bag 25 moves upward, and then the multiple mounting rings 51 are evenly spaced close to each other under the action of the spring 53. At this time, the filter bag 25 is forced to fold along its axial direction until the multiple mounting rings 51 collide with each other, so that the inside of the filter bag 25 is completely isolated from the outside, so that the damaged filter bag 25 is completely isolated, so that the dust-containing gas will not be directly discharged through the damaged filter bag 25, and will not affect the normal filtering work of other filter bags 25, so that the bag dust collector can continue to filter; The spring 53 is arranged so that when the winding mechanism 54 releases the winding of the connecting rope 52, the compressed spring 53 is reset, driving the multiple mounting rings 51 to move away from each other, so that the filter bag 25 is fully extended downward and opened, that is, when the filter bag 25 is in normal use, the filter bag 25 is supported by the elastic force of the spring 53 so that the filter bag 25 is in a normal filtering state and does not affect the normal filtering work; and when the pulse cleaning mechanism 3 back-blows the inside of the filter bag 25 to clean the dust on the outer wall of the filter bag 25, when the filter bag 25 is subjected to a certain expansion, the spring 53 can provide a certain directional pulling force, so that the filter bag 25 can vibrate up and down along its axial direction, thereby improving the effect of cleaning the dust on the outer wall of the filter bag 25.

[0024] like Figure 3-4 As shown, the reeling mechanism 54 includes a reeling disc 541, a guide mechanism 542 and a first drive mechanism 543; the reeling disc 541 is disposed on the filter box 1 (such as Figure 1 As shown in the figure, the guide mechanism 542 is arranged on the winding disk 541, one end of the connecting rope 52 passes through the guide mechanism 542 and is wound around the winding disk 541, and the first driving mechanism 543 is arranged in the filter box 1; the first driving mechanism 543 is used to drive the winding disk 541 to rotate so as to wind up the connecting rope 52.

[0025] It should be noted that when the filter bag 25 needs to be compressed and folded, the winding disc 541 is driven to rotate by the first driving mechanism 543, and under the guidance of the guide mechanism 542, the connecting rope 52 is wound up, and the bottom mounting ring 51 in the filter bag 25 is pulled upward by the connecting rope 52, so that with the cooperation of the spring 53, multiple mounting rings 51 are synchronously approached to each other, thereby driving the filter bag 25 to be compressed and folded at equal intervals, until multiple mounting rings 51 are stacked and collide with each other, and the filter bag 25 is completely compressed, so that the inside and outside of the filter bag 25 are isolated, thereby realizing compression and isolation of the damaged filter bag 25 without affecting the normal filtering work of the bag dust collector.

[0026] like Figure 3-6 As shown, the guide mechanism 542 includes a pulley 5421 and a guide block 5422; the pulley 5421 is arranged on the filter box 1 (such as Figure 1 ), the connecting rope 52 is in conflict with the pulley 5421; the pulley 5421 is used to provide guidance for the movement of the connecting rope 52, the guide block 5422 is arranged on the winding disk 541, one end of the connecting rope 52 passes through the guide block 5422 and is wound around the winding disk 541; the winding disk 541 is provided with an annular groove 5423, and the guide block 5422 is provided with a slider, the slider is slidably connected to the annular groove 5423, and the slider is a cylindrical structure, and the guide block 5422 can rotate along the axis of the cylindrical structure.

[0027] It should be noted that when the guide mechanism 542 drives the winding disk 541 to rotate, the pulley 5421 is first used to provide guidance for the movement of the connecting rope 52, and then the guide block 5422 is further used to provide guidance, so that the connecting rope 52 is always wound along the tangential direction of the winding disk 541; that is, when the winding disk 541 rotates, the guide block 5422 slides on the winding disk 541 through the annular groove 5423. It can be understood that the center of the annular groove 5423 coincides with the axis of the winding disk 541. That is, when the winding drum 541 rotates, the guide block 5422 can maintain its original position so that the connecting rope 52 is always wound along the tangential direction of the winding drum 541, which can prevent the winding drum 541 from being misplaced, reduce the interlacing of the connecting ropes 52 wound on the winding drum 541, facilitate the winding and releasing of the connecting ropes 52, and ensure that when a pair of connecting ropes 52 are wound, as the winding drum 541 rotates, the pair of connecting ropes 52 are wound up with the same upward displacement, that is, ensure that the filter bag 25 is smoothly compressed.

[0028] like Figure 4-5 As shown, it can be understood that the present application does not limit the specific structure and installation method of the first driving mechanism 543. The following only provides a feasible specific implementation scheme; the first driving mechanism 543 includes a first motor 5431, a worm 5432 and a worm wheel 5433; the first motor 5431 is installed in the filter box 1 (such as Figure 1As shown in the figure, the output end of the first motor 5431 is coaxially connected to the worm 5432; the first motor 5431 is used to drive the worm 5432 to rotate along its axis; the worm wheel 5433 is coaxially fixed to the winding disk 541, and the worm 5432 is meshed with the worm wheel 5433.

[0029] It should be noted that when it is necessary to drive the winding disk 541 to rotate in order to reel in the connecting rope 52, the worm 5432 is driven to rotate by the first motor 5431, the worm 5432 drives the worm wheel 5433 to rotate, and the worm wheel 5433 drives the winding disk 541 to rotate along its axial direction. In this way, the winding disk 541 is driven to rotate in order to reel in the connecting rope 52. By setting the structure of the worm 5432 and the worm wheel 5433 and its axial self-locking characteristics, the winding state of the connecting rope 52 is ensured, thereby ensuring the stability of use.

[0030] like Figure 3-4 and Figure 8-11 As shown, the isolation mechanism 5 also includes a control mechanism 55; the control mechanism 55 is used to control the local compression of the filter bag 25; the control mechanism 55 includes a guide shaft 551, a second driving mechanism 554, a plurality of first protrusions 552 and a second protrusion 553; one end of the guide shaft 551 is rotatably connected to the filter box 1 (such as Figure 1 As shown in the figure, a through hole is provided on the mounting ring 51, the other end of the guide shaft 551 passes through the through holes on the plurality of mounting rings 51 and is rotatably connected to the mounting ring 51 connected to the bottom of the filter bag 25, a plurality of first protrusions 552 are provided on the guide shaft 551, and the projections of the plurality of first protrusions 552 along the axial direction of the guide shaft 551 overlap, a second protrusion 553 is provided in the through hole on each mounting ring 51, the plurality of second protrusions 553 are arranged at equal intervals along the circumference of the guide shaft 551, and the projections of the plurality of second protrusions 553 along the axial direction of the guide shaft 551 form a circular ring structure; a second driving mechanism 554 is provided in the filter box 1, and the second driving mechanism 554 is used to drive the guide shaft 551 to rotate along its axis.

[0031] It should be noted that, through the setting of the control mechanism 55, when a local position of a filter bag 25 is damaged, the damaged position of the filter bag 25 is driven by the control mechanism 55 to be compressed upward, so as to achieve blocking of the damaged position, so that the dust-containing gas cannot enter the filter bag 25 through the damaged position; and the area below the damaged position on the filter bag 25 is still in a normal expanded state, that is, at this time, the area below the damaged position of the filter bag 25 can still perform normal filtering work; the utilization rate of the filter bag 25 is improved, so that when local damage occurs, the impact on the overall filtering effect can be minimized, and the filtering efficiency is guaranteed; Specifically, when the entire structure of the filter bag 25 needs to be completely compressed and folded, the second driving mechanism 554 drives the guide shaft 551 to rotate, so that the first protrusions 552 on the guide shaft 551 are all misaligned with the second protrusions 553 on the mounting rings 51, that is, the compression and folding of the entire filter bag 25 pulled by the connecting rope 52 is not affected; When the side of the filter bag 25 is partially damaged, the second driving mechanism 554 drives the guide shaft 551 to rotate, so that one of the first protrusions 552 and the second protrusion 553 on the mounting ring 51 near the top are staggered in the projection along the axis of the guide shaft 551, so that when the connecting rope 52 is pulled to move, the connecting rope 52 drives the mounting ring 51 at the bottom of the filter bag 25 to move upward, thereby driving the first protrusion 552 on the guide shaft 551 to move upward. Since one of the first protrusions 552 and the second protrusion 553 are staggered, the first protrusion 552 can push the second protrusion 553 to move upward, that is, push the mounting ring 51 at this position to move upward until the mounting ring 51 contacts the top of the filter bag 25, and the filter bag 25 area below the mounting ring 51 is still in the expanded state, so as to achieve compression isolation of the locally damaged position without affecting the filtering work at other positions on the filter bag 25. In the process of driving the guide shaft 551 to rotate and drive the first protrusion 552 to rotate, that is, through the position setting of the first protrusion 552 and the second protrusion 553, only one first protrusion 552 can be completely staggered with the second protrusion 553 at a time (such as Figure 7-11 As shown in the figure, when the top first protrusion 552 on the guide shaft 551 is completely staggered with the second protrusion 553 on the top mounting ring 51, the other second protrusions 553 are completely staggered with the first protrusion 552 in the axial projection of the first protrusion 552, that is, at this time, the filter bag 25 on the top mounting ring 51 and the top area of ​​the filter bag 25 can be compressed and folded; when the second first protrusion 552 from the top to the bottom on the guide shaft 551 is completely staggered with the second second protrusion 553 on the second mounting ring 51 from the top to the bottom , the other second protrusions 553 are completely offset from the first protrusions 552 in the axial projection of the first protrusions 552, that is, the filter bag 25 above the second mounting ring 51 and the top area of ​​the filter bag 25 can be compressed and folded at this time; in this way, the guide shaft 551 is driven to rotate, and the compressed and folded area of ​​the filter bag 25 can be gradually increased to adapt to the compression and isolation work of different damaged positions; it can be understood that the above-mentioned descriptions such as above and from top to bottom mean that the position close to the top of the filter box 1 is above, and the position close to the bottom of the filter box 1 is below.

[0032] like Figure 3-4 and Figure 7As shown, it can be understood that the present application does not limit the local structure and installation method of the second driving mechanism 554. The following only provides a feasible implementation scheme; the second driving mechanism 554 includes a belt 5542, a second mounting plate 5543, a second motor 5544, a second rotating wheel 5545 and two first rotating wheels 5541; the control mechanism 55 includes a pair of guide shafts 551, the two first rotating wheels 5541 are coaxially arranged on the pair of guide shafts 551, the belt 5542 is tightened on the pair of guide shafts 551, and the second mounting plate 5543 is tightened on the second motor 5544. 43 is arranged in the filter box 1, the second motor 5544 is installed on the second mounting plate 5543, the output end of the second motor 5544 is provided with a second rotating wheel 5545, and the second rotating wheel 5545 and a pair of first rotating wheels 5541 are tensioned on the same belt 5542; the second motor 5544 is used to drive the second rotating wheel 5545 to rotate, so as to drive the belt 5542 to transmit; a guide wheel 5546 is rotatably connected in the filter box 1, and the guide wheel 5546 is in conflict with the belt 5542; the guide wheel 5546 is used to provide guidance for the transmission of the belt 5542.

[0033] It should be noted that the second motor 5544 drives the second rotating wheel 5545 to rotate, and under the guidance of the guide wheel 5546 and the cooperation of the belt 5542, the two first rotating wheels 5541 are driven to rotate synchronously, and then the two guide shafts 551 are driven to rotate synchronously, so that when the filter bag 25 is compressed and folded, the filter bag 25 can be compressed smoothly, reducing the problem of skewness caused by uneven force on the filter bag 25, which affects the compression and isolation effect.

[0034] like Figure 1-2 As shown, it can be understood that the present application does not limit the specific structure and installation method of the bag filter mechanism 2. Only a feasible specific implementation scheme is provided below; the bag filter mechanism 2 also includes an inlet pipe 21 and an outlet pipe 22 arranged on the filter box 1; a first mounting plate 23 is arranged in the filter box 1, and a plurality of filter bags 25 are arranged on the first mounting plate 23. The first mounting plate 23 is used to isolate the interior of the filter box 1 into two upper and lower chambers. The inlet pipe 21 is connected to the chamber located below, and the outlet pipe 22 is connected to the chamber located above; a plurality of venturi tubes 25 are arranged on the first mounting plate 23. 4, each venturi tube 24 is connected to the top of each filter bag 25; the reel 541 is sleeved on the venturi tube 24, and the reel 541 is rotatably connected to the first mounting plate 23 along its axis; the pulley 5421, the first motor 5431 and the second mounting plate 5543 are all arranged on the first mounting plate 23; one end of the guide shaft 551 is rotatably connected to the first mounting plate 23 along its axis; a protective cover 4 is arranged on the first mounting plate 23, and the reeling mechanism 54 is arranged in the protective cover 4, and the reeling mechanism 54 is protected by the protective cover 4 to reduce the interference of the external environment on the operation of the reeling mechanism 54.

[0035] It should be noted that when the bag filter is in use, dust-containing gas is introduced into the filter box 1 through the inlet pipe 21. After being filtered by multiple filter bags 25, the dust-containing gas moves upward through the venturi tube 24 and is discharged through the outlet pipe 22, thereby achieving complete filtering work.

[0036] like Figure 1-2 As shown, it can be understood that the present application does not limit the specific structure and installation method of the pulse cleaning mechanism 3. Only a feasible specific implementation scheme is provided below; the pulse cleaning mechanism 3 includes a nozzle 31 and a plurality of nozzles 32; the nozzle 31 is arranged in the upper chamber of the filter box 1, and the plurality of nozzles 32 are connected to the nozzle 31, and the plurality of nozzles 32 are arranged above the venturi tube 24.

[0037] It should be noted that when the filter bag 25 needs to be cleaned, instantaneous high-pressure gas is introduced into the nozzle 31, so that the high-pressure gas is ejected through the nozzle 32 and introduced into the filter bag 25 through the venturi 24, so that the air pressure in the filter bag 25 increases instantly, and then the dust attached to the outer wall of the filter bag 25 is blown off, thereby achieving the purpose of dust removal and ensuring the long-term filtering effect of the filter bag 25; and the present application does not affect the normal use of the pulse cleaning mechanism 3 through the setting of the isolation mechanism 5, and can make the filter bag 25 vibrate up and down when the pulse cleaning mechanism 3 is working, thereby improving the cleaning effect.

[0038] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A bag filter, comprising a filter box (1) and a bag filter mechanism (2) arranged in the filter box (1); characterized in that: The bag filter mechanism (2) comprises a plurality of filter bags (25); the bag dust collector further comprises an isolation mechanism (5) for pushing the damaged filter bags (25) to be completely compressed and folded along their axial direction; the isolation mechanism (5) comprises: A plurality of mounting rings (51), wherein the plurality of mounting rings (51) are axially arranged at equal intervals along the inner wall of the filter bag (25); At least one pair of connecting ropes (52), at least one pair of the connecting ropes (52) being arranged along the axis direction of the filter bag (25), one end of the connecting rope (52) passing through a plurality of mounting rings (51) and connected to the mounting ring (51) connected to the bottom of the filter bag (25); A plurality of springs (53), wherein the springs (53) are sleeved on the connecting rope (52), a spring (53) is arranged between each of the adjacent mounting rings (51), and both ends of the spring (53) are in contact with each of the adjacent mounting rings (51); and a reeling mechanism (54), wherein the reeling mechanism (54) is arranged in the filter box (1), and the other end of the connecting rope (52) is connected to the reeling mechanism (54); the reeling mechanism (54) is used to reel in the connecting rope (52) to drive the filter bag (25) to be compressed.

2. A bag dust collector according to claim 1, characterized in that: The reeling mechanism (54) comprises a reeling disk (541), a guide mechanism (542) and a first driving mechanism (543); the reeling disk (541) is arranged in the filter box (1); the guide mechanism (542) is arranged on the reeling disk (541); one end of the connecting rope (52) passes through the guide mechanism (542) and is wound around the reeling disk (541); the first driving mechanism (543) is arranged in the filter box (1); the first driving mechanism (543) is used to drive the reeling disk (541) to rotate so as to reel in the connecting rope (52).

3. A bag dust collector according to claim 2, characterized in that: The guide mechanism (542) comprises a pulley (5421) and a guide block (5422); the pulley (5421) is arranged in the filter box (1), and the connecting rope (52) is in contact with the pulley (5421); the pulley (5421) is used to provide guidance for the movement of the connecting rope (52), and the guide block (5422) is arranged on the winding disk (541), and one end of the connecting rope (52) passes through the guide block (5422) and is wound around the winding disk (541); The winding disk (541) is provided with an annular groove (5423), and the guide block (5422) is provided with a slider, the slider is slidably connected to the annular groove (5423), and the slider is a cylindrical structure, and the guide block (5422) can rotate along the axis of the cylindrical structure.

4. A bag dust collector according to claim 3, characterized in that: The first driving mechanism (543) comprises a first motor (5431), a worm (5432) and a worm wheel (5433); the first motor (5431) is installed in the filter box (1), and the output end of the first motor (5431) is coaxially connected to the worm (5432); the first motor (5431) is used to drive the worm (5432) to rotate along its axis; the worm wheel (5433) is coaxially fixed to the winding disk (541), and the worm (5432) and the worm wheel (5433) are meshed.

5. The bag dust collector according to claim 1, characterized in that: The isolation mechanism (5) further comprises a control mechanism (55); the control mechanism (55) is used to control the local compression of the filter bag (25).

6. A bag dust collector according to claim 5, characterized in that: The control mechanism (55) comprises a guide shaft (551), a second driving mechanism (554), a plurality of first protrusions (552) and a second protrusion (553); one end of the guide shaft (551) is rotatably connected to the inside of the filter box (1); a through hole is provided on the mounting ring (51); the other end of the guide shaft (551) passes through the through holes on the plurality of mounting rings (51) and is rotatably connected to the mounting ring (51) connected to the bottom of the filter bag (25); the plurality of first protrusions (552) are arranged on the guide shaft (551); and the plurality of second protrusions (553) are arranged on the guide shaft (551). The projections of a protrusion (552) along the axial direction of the guide shaft (551) overlap, a second protrusion (553) is arranged in the through hole of each mounting ring (51), and a plurality of second protrusions (553) are arranged at equal intervals along the circumference of the guide shaft (551), and the projections of the plurality of second protrusions (553) along the axial direction of the guide shaft (551) form a circular ring structure; the second driving mechanism (554) is arranged in the filter box (1), and the second driving mechanism (554) is used to drive the guide shaft (551) to rotate along its axis.

7. A bag dust collector according to claim 6, characterized in that: The second driving mechanism (554) comprises a belt (5542), a second mounting plate (5543), a second motor (5544), a second rotating wheel (5545) and two first rotating wheels (5541); the control mechanism (55) comprises a pair of guide shafts (551), the two first rotating wheels (5541) are coaxially arranged on the pair of guide shafts (551), the belt (5542) is tensioned on the pair of guide shafts (551), the second mounting plate (5543) is arranged in the filter box (1), the second motor (5544) is mounted on the second mounting plate (5543), the output end of the second motor (5544) is provided with a second rotating wheel (5545), and the second rotating wheel (5545) and the pair of first rotating wheels (5541) are tensioned on the same belt (5542); the second motor (5544) is used to drive the second rotating wheel (5545) to rotate, so as to drive the belt (5542) to transmit; A guide wheel (5546) is rotatably connected inside the filter box (1), and the guide wheel (5546) is in contact with the belt (5542); the guide wheel (5546) is used to provide guidance for the transmission of the belt (5542).

8. The bag filter according to claim 3, characterized in that: The bag filter mechanism (2) further comprises an inlet pipe (21) and an outlet pipe (22) arranged on the filter box (1); a first mounting plate (23) is arranged in the filter box (1), and a plurality of filter bags (25) are arranged on the first mounting plate (23); the first mounting plate (23) is used to separate the interior of the filter box (1) into two upper and lower chambers, the inlet pipe (21) is connected to the chamber located at the lower side, and the outlet pipe (22) is connected to the chamber located at the upper side; a plurality of venturi tubes (24) are arranged on the first mounting plate (23), and each of the venturi tubes (24) is connected to the top of each of the filter bags (25); The winding disk (541) is sleeved on the venturi tube (24), and the winding disk (541) is rotatably connected to the first mounting plate (23) along its axis; the pulley (5421) and the first driving mechanism (543) are both arranged on the first mounting plate (23); one end of the guide shaft (551) is rotatably connected to the first mounting plate (23) along its axis.

9. The bag filter according to claim 1, characterized in that: The bag filter also includes a pulse cleaning mechanism (3) arranged in the filter box (1), and the pulse cleaning mechanism (3) is arranged above the bag filter mechanism (2); the pulse cleaning mechanism (3) includes a nozzle (31) and a plurality of nozzles (32); the nozzle (31) is arranged in a chamber located above the filter box (1), the plurality of nozzles (32) are connected to the nozzle (31), and the plurality of nozzles (32) are arranged above the venturi (24).

10. The bag dust collector according to claim 8, characterized in that: A protective cover (4) is provided on the first mounting plate (23), and the retracting mechanism (54) is arranged inside the protective cover (4).

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