Filter bag fixing mechanism of pulse bag type dust collector

Abstract

The invention relates to the technical field of pulse bag type dust collectors, in particular to a filter bag fixing mechanism of a pulse bag type dust collector, which comprises a support frame for supporting and fixing a filter bag, the support frame comprises a bottom check ring, a bottom connecting rod, a top check ring, a top connecting rod, a support rod and a support sleeve, the bottom check ring is located at the closed bottom of the filter bag, and the top check ring is located at the bottom of the support sleeve. A plurality of bottom connecting rods and a plurality of top connecting rods are arranged; according to the filter bag fixing mechanism of the pulse bag type dust collector, a filter bag can be stably supported, and the top of the filter bag and a top check ring can be stably locked and fixed at a through hole of a tubesheet of the pulse bag type dust collector through a fixing and locking mechanism arranged on the supporting sleeve; the supporting stability of the supporting frame on the filter bag is further guaranteed, the phenomenon that the filter bag and the supporting frame are vibrated due to high-speed washing airflow is prevented, and the dust falling effect of the filter bag is further guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of pulse bag dust collectors, in particular to a filter bag fixing mechanism of a pulse bag dust collector. Background Art

[0002] The pulse dust collector is mainly composed of a hopper, a middle box, an upper box, a blowing device, a pulse controller, etc. The dusty gas enters the lower part of the middle box. In the pre-dust removal chamber formed by the windshield, large particles of dust fall into the hopper due to inertia. The dusty gas goes up along the windshield to the filter bag, and the dust is retained on the outer surface of the filter bag. The clean gas enters the bag and is discharged from the bag mouth to the upper box. As the filtration time increases, the dust layer on the filter bag continues to accumulate, and the resistance of the dust removal equipment continues to rise. When the resistance of the equipment rises to a certain value, the cleaning device starts to clean the dust under the control of the pulse controller. There are two types of cleaning devices: timing and constant pressure, which can be selected according to production needs. During cleaning, compressed air passes through the pulse valve in sequence in a very short time, and is sprayed to the filter bag through the nozzle on the blowing pipe. Under the acceleration generated by the expansion of the filter bag and the reverse airflow, the dust attached to the outer surface of the filter bag breaks away from the filter bag and falls into the hopper. The dust is discharged by the ash discharge valve. After the blowing is completed, the filter bag immediately resumes the filtering state.

[0003] The filter bag in the existing pulse bag dust collector is provided with a support frame installed inside the filter bag so that the filter bag is closed at the bottom and open at the top. When the filter bag is installed through the through hole at the flower plate inside the pulse bag dust collector through the support frame, the top of the support frame is directly stuck in the through hole. However, during the operation of the pulse bag dust collector, a part of the upward airflow will cause high-speed scouring of the filter bag. The use of a clip-on installation method will cause instability in the connection of the filter bag, thereby generating vibration and affecting the dust reduction effect of the filter bag on the airflow. When the pulse valve is opened, although a reverse airflow will be generated to blow off the dust on the outside of the filter bag, there will still be a lot of dust particles remaining on the filter bag, further affecting the subsequent dust reduction use of the filter bag. Summary of the invention

[0004] The object of the present invention is to provide a filter bag fixing mechanism for a pulse bag dust collector to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a filter bag fixing mechanism of a pulse bag dust collector, comprising a support frame for supporting and fixing the filter bag, the support frame comprising a bottom retaining ring, a bottom connecting rod, a top retaining ring, a top connecting rod, a support rod and a support sleeve, the bottom retaining ring is located at the closed bottom of the filter bag, the bottom connecting rod and the top connecting rod are both provided with a plurality of the bottom connecting rods and the top connecting rods, the plurality of the bottom connecting rods and the plurality of the top connecting rods are respectively fixedly mounted on the bottom and the top of the support sleeve, and the ends of the plurality of the top connecting rods away from the support sleeve are fixedly connected to the inner wall of the top retaining ring, and one end of the top of the filter bag is fixedly mounted on the top retaining ring; There are multiple support rods, and the multiple support rods are fixed around the bottom retaining ring, and the multiple support rods are used to support the filter bag; A fixing locking mechanism is provided at the top of the support sleeve, and a slot is provided at the through hole of the flower plate corresponding to the fixing locking mechanism, and the filter bag and the support frame can be detachably installed at the through hole of the flower plate through the fixing locking mechanism; The support sleeve is provided with a tensioning mechanism, and the tensioning mechanism keeps the filter bag in a tensioned state when it is fixed.

[0006] The fixing locking mechanism comprises a fixing sleeve, a moving part, a connecting part, an arc-shaped clamping plate and a clamping ring. The fixing sleeve is sleeved on the outside of the top of the supporting sleeve. The bottom of the fixing sleeve is fixedly connected to the supporting sleeve. The connecting part is connected to the supporting sleeve and passes through the top of the fixing sleeve. The fixing sleeve is provided with a plurality of limiting openings, and the connecting pieces are provided with a plurality of connecting pieces. At the limiting openings passing through the plurality of connecting pieces, one end of the connecting piece is connected to the fixing sleeve, and the other end of the connecting piece is connected to the arc-shaped clamping plate. The clamping ring is located outside the plurality of arc-shaped clamping plates, and the plurality of arc-shaped clamping plates clamp the top of the filter bag to the clamping groove at the through hole of the flower plate through the clamping ring, and the top retaining ring is clamped to the top of the through hole. A limiting plate is provided on the top of the arc-shaped clamping plate, and a limiting groove is provided at the bottom of the top retaining ring and corresponding to the position of the limiting plate. The top of the limiting plate is slidably connected to the limiting groove, and a fixed locking mechanism is provided to stably fix the filter bag and the supporting frame as a whole at the through hole of the flower plate.

[0007] Wherein, the moving part comprises an internal thread sleeve, an external thread sleeve and a rotating plate, the external thread sleeve is rotatably connected to the outside of the supporting sleeve through a bearing, the external thread sleeve passes through the fixed sleeve, and the rotating plate is fixedly installed on the top of the external thread sleeve; The internal thread sleeve is threadably sleeved on the outside of the external thread sleeve, and the internal thread sleeve is connected to a plurality of connecting pieces.

[0008] Among them, the connecting member includes a first connecting seat, a connecting support rod and a second connecting seat, the first connecting seat passes through the limit opening, the first connecting seat is fixedly connected to the internal threaded sleeve, one end of the connecting support rod is hinged to the first connecting seat through a pin shaft, and the other end of the connecting support rod is hinged to the second connecting seat through a pin shaft, and the second connecting seat is fixedly installed on the arc clamping plate, and the function of connecting the moving member and the arc clamping plate is realized through the connecting member.

[0009] Wherein, the tensioning mechanism comprises a first swinging member, a second swinging member, a reciprocating screw, a synchronous rod, a rotating rod and a rotating mechanism, the first swinging member and the second swinging member are provided in plurality, and the plurality of first swinging members and the second swinging members are staggeredly distributed from top to bottom along the supporting sleeve, and the supporting sleeve is provided with two guide openings at positions corresponding to the first swinging member and the second swinging member; The reciprocating screws are provided in plurality, and the plurality of reciprocating screws are respectively connected to drive the plurality of first swing members and the second swing members, and the synchronization rod is used to connect the plurality of reciprocating screws; The bottom of the synchronization rod is rotatably connected to the top of the support sleeve, and the top of the synchronization rod passes through the central opening of the support sleeve and is connected to the rotating rod. The rotating mechanism is connected to the blowpipe nozzle of the pulse bag dust collector, and the tensioning mechanism is provided to keep the filter bag in a tensioned state.

[0010] Among them, the first swing member and the second swing member are both composed of a limit sleeve, a limit support rod, a positioning support rod, a positioning seat and a swing block. The limit sleeve is threadedly sleeved on the outside of the reciprocating screw, and two limit support rods are provided. The limit support rod passes through the guide port, one end of the limit support rod is rotatably connected to the limit sleeve through a hinge support, and the other end of the limit support rod is hinged to the positioning support rod through a pin shaft, one end of the positioning support rod is hinged to the positioning seat through a pin shaft, and the positioning seat is fixedly installed on the outside of the supporting sleeve, and the other end of the positioning support rod is fixedly connected to the swing block, thereby achieving the function of auxiliary shaking of the filter bag while tensioning the filter bag.

[0011] Among them, the end of the swing block close to the filter bag is set in a semicircular arc shape, thereby playing a role in protecting the filter bag.

[0012] Wherein, the rotating mechanism includes a rotating part, a fixed ring, a fixed rod, a sealing plug, a connecting plate and a buffer part. The rotating part is fixedly installed on the top of the rotating rod, and the top of the rotating rod extends to the inside of the nozzle. The fixed ring is rotatably sleeved on the rotating rod plug. When the bottom of the nozzle is closed, the sealing plug moves between the fixed ring and the nozzle to close the bottom of the nozzle. The connecting plate is fixedly installed at the bottom of the sealing plug. There are multiple buffer parts, and the multiple buffer parts are used to connect the connecting plate and the nozzle. Through the rotating mechanism, when the filter bag is removing dust particles on the outside, the dust particles are assisted to fall off.

[0013] Among them, the rotating member includes a rotating block and fan blades. The rotating block is fixedly installed on the top of the rotating rod. There are multiple fan blades, and the multiple fan blades are equidistantly distributed on the outside of the rotating block. The rotating member is provided to drive the rotating rod.

[0014] Among them, the buffer component includes a buffer rod, a buffer plate and a buffer spring, one end of the buffer rod is fixedly installed at the bottom of the nozzle, the buffer plate is fixedly installed at the bottom of the buffer rod, the connecting plate is slidably sleeved on the outside of the buffer rod, the buffer spring is sleeved on the outside of the buffer rod, and the two ends of the buffer spring are respectively fixedly connected to the connecting plate and the buffer plate, and the buffer component is provided to realize the function of connecting and supporting the connecting plate.

[0015] The present invention has at least the following beneficial effects: 1. When the present invention is used, the support frame for supporting and fixing the filter bag is provided with a bottom retaining ring, a bottom connecting rod, a top retaining ring, a top connecting rod, a support rod and a support sleeve structure, so that the filter bag can be stably supported, and the top of the filter bag and the top retaining ring can be stably locked and fixed at the through hole of the flower plate of the pulse bag dust collector through a fixed locking mechanism provided on the support sleeve, so as to further ensure the stability of the support frame supporting the filter bag, prevent the filter bag and the support frame from vibrating due to high-speed airflow, and further ensure the dust reduction effect of the filter bag; 2. When the present invention is in use, the tensioning mechanism provided on the supporting sleeve can further ensure that the filter bag is in a taut state when the filter bag is performing dust reduction, thereby ensuring that the filter bag is fully used for dust reduction, and when the pulse valve is opened, the air flow is blown into the filter bag through the nozzle through the blow pipe to blow off the dust particles on the outside of the filter bag. At the same time, the first swinging member and the second swinging member of the tensioning mechanism operate alternately, and while ensuring the stability of the support frame, the filter bag is auxiliary shaken as a whole, so that the dust particles on the outside of the filter bag are fully blown off, thereby ensuring that the filter bag can be used for subsequent dust reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the nozzle structure of the present invention; Figure 2 This is a schematic diagram of the structure of the flower plate of the present invention; Figure 3 It is a schematic diagram of the filter bag structure of the present invention; Figure 4 This is a schematic diagram of the internal structure of the filter bag of the present invention; Figure 5 This is a schematic diagram of the support structure of the present invention; Figure 6 It is a schematic diagram of the side structure of the support frame of the present invention; Figure 7 This is a schematic diagram of the support rod structure of the present invention; Figure 8 It is a structural schematic diagram of the card slot of the flower plate of the present invention; Fig. 9 This is a schematic diagram of the support sleeve structure of the present invention; Fig.10 This is a schematic diagram of the bottom structure of the top retaining ring of the present invention; Fig.11 It is a schematic diagram of the structure of the moving part of the present invention; Fig.12 This is a schematic diagram of the bottom retaining ring structure of the present invention; Fig.13 It is a schematic diagram of the reciprocating screw structure of the present invention; Fig.14 For the present invention Fig.13 A schematic diagram of the enlarged structure of the middle A area; Fig.15 For the present invention Fig.13 Schematic diagram of the enlarged structure of the middle B area; Fig.16 It is a schematic diagram of the rotating block structure of the present invention.

[0017] In the figure: 1, support frame; 11, bottom retaining ring; 12, bottom connecting rod; 13, top retaining ring; 131, limiting groove; 14, top connecting rod; 15, support rod; 16, support sleeve; 2, fixed locking mechanism; 21, fixed sleeve; 211, limiting opening; 22, moving part; 221, internal thread sleeve; 222, external thread sleeve; 223, rotating plate; 23, connecting part; 231, first connecting seat; 232, connecting support rod; 233, second connecting seat; 24, arc clamping plate; 241, limiting plate; 25, clamping ring; 3, filter bag; 4. Flower plate; 41. Through hole; 42. Slot; 5. Tensioning mechanism; 51. First swinging member; 52. Second swinging member; 53. Reciprocating screw; 54. Synchronous rod; 55. Rotating rod; 56. Rotating mechanism; 561. Fixed ring; 562. Fixed rod; 563. Sealing plug; 564. Connecting plate; 6. Limiting sleeve; 61. Limiting support rod; 62. Positioning support rod; 63. Positioning seat; 64. Swinging block; 7. Rotating member; 71. Rotating block; 72. Fan blade; 8. Buffer member; 81. Buffer rod; 82. Buffer plate; 83. Buffer spring; 9. Nozzle. DETAILED DESCRIPTION

[0018] 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.

[0019] Embodiment 1 See also Figures 5 and 6 The filter bag fixing mechanism of the pulse bag dust collector comprises a support frame 1 for supporting and fixing the filter bag 3, the support frame 1 comprises a bottom retaining ring 11, a bottom connecting rod 12, a top retaining ring 13, a top connecting rod 14, a support rod 15 and a support sleeve 16, the bottom retaining ring 11 is located at the closed bottom of the filter bag 3, the bottom connecting rod 12 and the top connecting rod 14 are both provided with a plurality of bottom connecting rods 12 and a plurality of top connecting rods 14, and the plurality of bottom connecting rods 12 and the plurality of top connecting rods 14 are respectively fixedly mounted on the bottom and the top of the support sleeve 16, and the ends of the plurality of top connecting rods 14 away from the support sleeve 16 are fixedly connected to the inner wall of the top retaining ring 13, and the top end of the filter bag 3 is fixedly mounted on the top retaining ring 13; A plurality of support rods 15 are provided, and the plurality of support rods 15 are fixed around the bottom retaining ring 11, and the plurality of support rods 15 are used to support the filter bag 3, that is, in this example, the tops of the plurality of support rods 15 do not contact the top retaining ring 13; A fixing locking mechanism 2 is provided at the top of the support sleeve 16, and a slot 42 is provided at the through hole 41 of the flower plate 4 corresponding to the fixing locking mechanism 2, so that the filter bag 3 and the support frame 1 can be detachably installed at the through hole 41 of the flower plate 4 through the fixing locking mechanism 2; See also Figure 4 and Figures 7 to 11 The fixed locking mechanism 2 includes a fixed sleeve 21, a moving member 22, a connecting member 23, an arc-shaped clamping plate 24 and a clamping ring 25. The fixed sleeve 21 is sleeved on the outer side of the top of the supporting sleeve 16. The bottom of the fixed sleeve 21 is fixedly connected to the supporting sleeve 16. The connecting member 23 is connected to the supporting sleeve 16, and the connecting member 23 passes through the top of the fixed sleeve 21. The fixed sleeve 21 is provided with a plurality of limit openings 211, and the connecting member 23 is provided with a plurality of limit openings 211 through which the plurality of connecting members 23 pass. One end of the connecting member 23 is connected to the fixed sleeve 21, and the other end of the connecting member 23 is connected to the arc clamping plate 24. The clamping ring 25 is located outside the plurality of arc clamping plates 24, and the plurality of arc clamping plates 24 clamp the top of the filter bag 3 at the clamping groove 42 at the through hole 41 of the flower plate 4 through the clamping ring 25, and at the same time, the top retaining ring 13 is clamped at the top of the through hole 41, and in this embodiment The clamping ring 25 is fixed to two of the multiple arc-shaped clamping plates 24, thereby preventing the clamping ring 25 from being separated from the multiple arc-shaped clamping plates 24. At the same time, the clamping ring 25 is made of rubber material, and then the multiple arc-shaped clamping plates 24 move to the clamping groove 42, and can indirectly fix a section of the top of the filter bag 3 to the clamping groove 42 through the clamping ring 25, while ensuring the connectivity of the filter bag 3, preventing the filter bag 3 from having a gap with the inner wall of the clamping groove 42 when being fixed, and ensuring the subsequent dust reduction use of the filter bag 3; A limiting plate 241 is disposed at the top of the arc-shaped clamping plate 24 , a limiting groove 131 is disposed at the bottom of the top retaining ring 13 and corresponding to the position of the limiting plate 241 , and the top of the limiting plate 241 is slidably connected to the limiting groove 131 .

[0020] The moving member 22 includes an internal thread sleeve 221, an external thread sleeve 222 and a rotating plate 223. The external thread sleeve 222 is rotatably connected to the outside of the supporting sleeve 16 through a bearing. The external thread sleeve 222 passes through the fixed sleeve 21, and the rotating plate 223 is fixedly installed on the top of the external thread sleeve 222. The internal thread sleeve 221 is threadably sleeved on the outside of the external thread sleeve 222 , and the internal thread sleeve 221 is connected to a plurality of connectors 23 .

[0021] The connecting member 23 includes a first connecting seat 231, a connecting rod 232 and a second connecting seat 233. The first connecting seat 231 passes through the limiting opening 211. The first connecting seat 231 is fixedly connected to the internal threaded sleeve 221. One end of the connecting rod 232 is hinged to the first connecting seat 231 through a pin shaft, and the other end of the connecting rod 232 is hinged to the second connecting seat 233 through a pin shaft. The second connecting seat 233 is fixedly mounted on the arc clamping plate 24. See also Figures 1 to 3 Specific implementation process: when the filter bag 3 is fixedly installed at the through hole 41 of the flower plate 4, the filter bag 3 is firstly put on the bottom retaining ring 11, and at the same time, the filter bag 3 is stretched to form a cylindrical shape through multiple support rods 15, and then the top of the filter bag 3 is sewed and fixed to the top retaining ring 13, so as to achieve the function of stably fixing the filter bag 3 and the top retaining ring 13; Subsequently, when the plurality of filter bags 3 are installed one by one at the through holes 41 on the flower plate 4 through the support frame 1, the bottom of the filter bag 3 is passed through the through hole 41 until the top of the top retaining ring 13 contacts the outer side of the through hole 41 of the flower plate 4. At this time, the rotating plate 223 is rotated, and when the rotating plate 223 rotates, the external threaded sleeve 222 is driven to rotate, and when the external threaded sleeve 222 rotates, a driving force is further provided to the internal threaded sleeve 221. Because the internal threaded sleeve 221 is limited by the plurality of connecting members 23, the internal threaded sleeve 221 moves upward relative to the fixed sleeve 21. When the internal threaded sleeve 221 moves upward, it simultaneously drives the plurality of connecting members 23 on its outer side to move upward synchronously. Since the arc-shaped clamping plate 24 is limited by the top limit plate 241, that is, since the limit plate 241 is limited by the limit groove 131 at the top retaining ring 13, the connecting support rod 232 pushes the arc-shaped clamping plate 24 to move along the retaining groove 42. At this time, multiple arc-shaped clamping plates 24 move along the retaining groove 42 synchronously, so that the circular clamping ring 25 gradually forms a tightened state. Then, the clamping ring 25 clamps the filter bag 3 in the retaining groove 42 under the connection action of multiple arc-shaped clamping plates 24. At the same time, the top retaining ring 13 is fixed to the top of the through hole 41 through multiple limit plates 241. When the top retaining ring 13 is fixed, the rest of the support frame 1 is fixed relative to the through hole 41, further realizing stable fixation between the filter bag 3 and the flower plate 4.

[0022] A tensioning mechanism 5 is provided on the supporting sleeve 16, and the tensioning mechanism 5 keeps the filter bag 3 in a tensioned state when being fixed.

[0023] See also Figures 12 to 15The tensioning mechanism 5 includes a first swinging member 51, a second swinging member 52, a reciprocating screw 53, a synchronous rod 54, a rotating rod 55 and a rotating mechanism 56. There are multiple first swinging members 51 and second swinging members 52, and the multiple first swinging members 51 and second swinging members 52 are staggered from top to bottom along the supporting sleeve 16. The supporting sleeve 16 is provided with two guide openings at positions corresponding to the first swinging members 51 and the second swinging members 52; There are multiple reciprocating screws 53, and the multiple reciprocating screws 53 are connected to drive the multiple first swing members 51 and the second swing members 52 respectively, and the synchronization rod 54 is used to connect the multiple reciprocating screws 53; The bottom of the synchronization rod 54 is rotatably connected to the top of the support sleeve 16, and the top of the synchronization rod 54 passes through the central opening of the support sleeve 16 and is connected to the rotation rod 55, and the rotating mechanism 56 is connected to the blowpipe nozzle 9 of the pulse bag dust collector.

[0024] See also Figure 13 to Figure 14 The first swing member 51 and the second swing member 52 are both composed of a limit sleeve 6, a limit support rod 61, a positioning support rod 62, a positioning seat 63 and a swing block 64. The limit sleeve 6 is threadedly sleeved on the outside of the reciprocating screw 53. Two limit support rods 61 are provided. The limit support rods 61 pass through the guide opening. One end of the limit support rod 61 is rotatably connected to the limit sleeve 6 through a hinge support, and the other end of the limit support rod 61 is hinged to the positioning support rod 62 through a pin shaft. One end of the positioning support rod 62 is hinged to the positioning seat 63 through a pin shaft, and the positioning seat 63 is fixedly installed on the outside of the support sleeve 16, and the other end of the positioning support rod 62 is fixedly connected to the swing block 64.

[0025] One end of the swing block 64 close to the filter bag 3 is set in a semicircular arc shape, and in this embodiment, multiple swing blocks 64 are respectively located between two gaps formed between four support rods 15, so that when the swing block 64 tensions the filter bag 3, it does not affect the movement of the swing block 64.

[0026] The rotating mechanism 56 includes a rotating member 7, a fixing ring 561, a fixing rod 562, a sealing plug 563, a connecting plate 564 and a buffer member 8. The rotating member 7 is fixedly installed on the top of the rotating rod 55, and the top of the rotating rod 55 extends to the inside of the nozzle 9. The fixing ring 561 is rotatably sleeved on the outside of the rotating rod 55, and the fixing ring 561 is fixedly installed in the inside of the nozzle 9 through the fixing rod 562. A guide hole is provided at the center of the sealing plug 563, and when the sealing plug 563 closes the bottom of the nozzle 9, the sealing plug 563 moves between the fixing ring 561 and the nozzle 9 to close the bottom of the nozzle 9. The connecting plate 564 is fixedly installed at the bottom of the sealing plug 563. A plurality of buffer members 8 are provided, and a plurality of buffer members 8 are used to connect the connecting plate 564 and the nozzle 9.

[0027] The rotating member 7 includes a rotating block 71 and blades 72 . The rotating block 71 is fixedly mounted on the top of the rotating rod 55 . A plurality of blades 72 are provided, and the plurality of blades 72 are evenly distributed on the outside of the rotating block 71 .

[0028] The buffer component 8 includes a buffer rod 81, a buffer plate 82 and a buffer spring 83. One end of the buffer rod 81 is fixedly installed at the bottom of the nozzle 9, the buffer plate 82 is fixedly installed at the bottom of the buffer rod 81, the connecting plate 564 is slidably sleeved on the outside of the buffer rod 81, and the buffer spring 83 is sleeved on the outside of the buffer rod 81. The two ends of the buffer spring 83 are respectively fixedly connected to the connecting plate 564 and the buffer plate 82.

[0029] Specific implementation process: After the support frame 1 and the filter bag 3 are fixedly installed between the flower plate 4, the multiple nozzles 9 at the bottom of the blowpipe are respectively aligned with the fixing rod 562, and then the fixing rod 562 is fixedly connected with the inner wall of the nozzle 9; When the dust-containing powder moves upward from the bottom and the outside of the filter bag 3 along the through hole 41 of the flower plate 4, the dust particles adhere to the filter bag 3, and the filtered airflow moves upward through the through hole 41 of the flower plate 4. The circulation of the airflow simultaneously pushes the connecting plate 564, so that the connecting plate 564 drives the sealing plug 563 to move along the fixing ring 561 and the nozzle 9 until the connecting plate 564 contacts the nozzle 9. At this time, the sealing plug 563 seals the bottom of the nozzle 9 to prevent the airflow from entering the inside of the nozzle 9. When the dust filtration is completed and the filter bag 3 is cleaned, the compressed air flows to the multiple nozzles 9 through the blowpipe. At this time, the sealing plug 563 is driven by a larger airflow, and the sealing plug 563 is separated from the fixing ring 561 and the nozzle 9. The airflow is blown into the filter bag 3 through the outside of the fixing ring 561. The accelerated airflow blows the filter bag 3 in the opposite direction, so that the dust particles on the outside of the filter bag 3 fall to the bottom of the pulse bag dust collector. At the same time, the larger airflow synchronously provides driving force for the multiple fan blades 72. The multiple fan blades 72 drive the rotating rod 55 to rotate through the rotating block 71. When the rotating rod 55 rotates, the rotating rod 55 and multiple synchronous rods 54 drive the multiple reciprocating screws 53 to rotate inside the supporting sleeve 16, thereby providing driving force to the first swing member 51 and the second swing member 52 respectively, so that the two swing blocks 64 at the multiple first swing members 51 and the second swing members 52 are in staggered contact with the filter bag 3, thereby ensuring that the filter bag 3 is tensioned while auxiliary shaking of the filter bag 3 is achieved. At this time, the filter bag 3 is accelerated by the airflow and the shaking of the multiple swing blocks 64, so that the dust particles on the filter bag fall fully to the bottom of the pulse bag dust collector.

[0030] Embodiment 2 See also Fig.16, Embodiment 2 is a further explanation of Embodiment 1, specifically: the outer ring of the top of the sealing plug 563 is set in a wedge shape, and the inner wall of the bottom of the nozzle 9 is set in an inclined shape; Therefore, this arrangement can ensure stable contact between the sealing plug 563 and the nozzle 9.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filter bag fixing mechanism for a pulse bag dust collector, comprising a support frame (1) for supporting and fixing a filter bag (3), characterized in that: The support frame (1) comprises a bottom retaining ring (11), a bottom connecting rod (12), a top retaining ring (13), a top connecting rod (14), a support rod (15) and a support sleeve (16); the bottom retaining ring (11) is located at the closed bottom of the filter bag (3); a plurality of the bottom connecting rods (12) and a plurality of the top connecting rods (14) are provided; the plurality of the bottom connecting rods (12) and the plurality of the top connecting rods (14) are respectively fixedly mounted on the bottom and the top of the support sleeve (16); and the ends of the plurality of the top connecting rods (14) away from the support sleeve (16) are fixedly connected to the inner wall of the top retaining ring (13); and the top end of the filter bag (3) is fixedly mounted on the top retaining ring (13); A plurality of the support rods (15) are provided, the plurality of the support rods (15) are fixed around the bottom retaining ring (11), and the plurality of the support rods (15) are used to support the filter bag (3); A fixing locking mechanism (2) is provided at the top of the support sleeve (16), and a clamping groove (42) is provided at a through hole (41) of the flower plate (4) corresponding to the fixing locking mechanism (2), so that the filter bag (3) and the support frame (1) can be detachably mounted at the through hole (41) of the flower plate (4) through the fixing locking mechanism (2); The support sleeve (16) is provided with a tensioning mechanism (5), and the tensioning mechanism (5) enables the filter bag (3) to remain in a tensioned state when being fixed.

2. The filter bag fixing mechanism of the pulse bag dust collector according to claim 1 is characterized in that: The fixing locking mechanism (2) comprises a fixing sleeve (21), a moving member (22), a connecting member (23), an arc-shaped clamping plate (24) and a clamping ring (25); the fixing sleeve (21) is sleeved on the outside of the top of the supporting sleeve (16); the bottom of the fixing sleeve (21) is fixedly connected to the supporting sleeve (16); the connecting member (23) is connected to the supporting sleeve (16), and the connecting member (23) passes through the top of the fixing sleeve (21); The fixed sleeve (21) is provided with a plurality of limiting openings (211), and the connecting piece (23) is provided with a plurality of limiting openings (211) penetrating the plurality of connecting pieces (23). One end of the connecting piece (23) is connected to the fixed sleeve (21), and the other end of the connecting piece (23) is connected to the arc-shaped clamping plate (24). The clamping ring (25) is located outside the plurality of arc-shaped clamping plates (24), and the plurality of arc-shaped clamping plates (24) clamp the top of the filter bag (3) at the clamping groove (42) at the through hole (41) of the flower plate (4) through the clamping ring (25), and at the same time, the top retaining ring (13) is clamped at the top of the through hole (41); A limiting plate (241) is provided at the top of the arc-shaped clamping plate (24), a limiting groove (131) is provided at the bottom of the top retaining ring (13) and at a position corresponding to the limiting plate (241), and the top of the limiting plate (241) is slidably connected to the limiting groove (131).

3. The filter bag fixing mechanism of the pulse bag dust collector according to claim 2 is characterized in that: The moving member (22) comprises an internally threaded sleeve (221), an externally threaded sleeve (222) and a rotating plate (223); the externally threaded sleeve (222) is rotatably connected to the outside of the supporting sleeve (16) via a bearing; the externally threaded sleeve (222) passes through the fixed sleeve (21); and the rotating plate (223) is fixedly mounted on the top of the externally threaded sleeve (222); The internal thread sleeve (221) is threadably sleeved on the outside of the external thread sleeve (222), and the internal thread sleeve (221) is connected to a plurality of connecting pieces (23).

4. The filter bag fixing mechanism of the pulse bag dust collector according to claim 2 is characterized in that: The connecting member (23) comprises a first connecting seat (231), a connecting support rod (232) and a second connecting seat (233); the first connecting seat (231) passes through the limiting opening (211); the first connecting seat (231) is fixedly connected to the internal threaded sleeve (221); one end of the connecting support rod (232) is hinged to the first connecting seat (231) via a pin shaft, and the other end of the connecting support rod (232) is hinged to the second connecting seat (233) via a pin shaft; the second connecting seat (233) is fixedly mounted on the arc-shaped clamping plate (24).

5. The filter bag fixing mechanism of the pulse bag dust collector according to claim 1 is characterized in that: The tensioning mechanism (5) comprises a first swinging member (51), a second swinging member (52), a reciprocating screw (53), a synchronization rod (54), a rotating rod (55) and a rotating mechanism (56); a plurality of the first swinging member (51) and the second swinging member (52) are provided, and the plurality of first swinging members (51) and the second swinging members (52) are staggeredly distributed from top to bottom along the supporting sleeve (16); and two guide openings are provided on the supporting sleeve (16) at positions corresponding to the first swinging member (51) and the second swinging member (52); A plurality of the reciprocating screws (53) are provided, and the plurality of the reciprocating screws (53) are respectively connected to drive the plurality of first swing members (51) and the second swing members (52), and the synchronization rod (54) is used to connect the plurality of reciprocating screws (53); The bottom of the synchronization rod (54) is rotatably connected to the top of the support sleeve (16), and the top of the synchronization rod (54) passes through the central opening of the support sleeve (16) to be connected to the rotation rod (55), and the rotation mechanism (56) is connected to the blowpipe nozzle (9) of the pulse bag dust collector.

6. The filter bag fixing mechanism of the pulse bag dust collector according to claim 5 is characterized in that: The first swing member (51) and the second swing member (52) are both composed of a limit sleeve (6), a limit support rod (61), a positioning support rod (62), a positioning seat (63) and a swing block (64). The limit sleeve (6) is threadedly sleeved on the outside of the reciprocating screw (53). Two limit support rods (61) are provided. The limit support rods (61) pass through the guide opening. One end of the limit support rod (61) is rotatably connected to the limit sleeve (6) through a hinge support, and the other end of the limit support rod (61) is hinged to the positioning support rod (62) through a pin shaft. One end of the positioning support rod (62) is hinged to the positioning seat (63) through a pin shaft, and the positioning seat (63) is fixedly installed on the outside of the support sleeve (16). The other end of the positioning support rod (62) is fixedly connected to the swing block (64).

7. The filter bag fixing mechanism of the pulse bag dust collector according to claim 6 is characterized in that: One end of the swing block (64) close to the filter bag (3) is arranged in a semicircular arc shape.

8. The filter bag fixing mechanism of the pulse bag dust collector according to claim 5 is characterized in that: The rotating mechanism (56) comprises a rotating member (7), a fixing ring (561), a fixing rod (562), a sealing plug (563), a connecting plate (564) and a buffer member (8); the rotating member (7) is fixedly mounted on the top of the rotating rod (55), and the top of the rotating rod (55) extends to the inside of the nozzle (9); the fixing ring (561) is rotatably sleeved on the outside of the rotating rod (55), and the fixing ring (561) is fixedly mounted inside the nozzle (9) via the fixing rod (562); a guide hole is provided at the center of the sealing plug (563), and when the sealing plug (563) closes the bottom of the nozzle (9), the sealing plug (563) moves between the fixing ring (561) and the nozzle (9) to close the bottom of the nozzle (9); the connecting plate (564) is fixedly mounted on the bottom of the sealing plug (563); a plurality of buffer members (8) are provided, and the plurality of buffer members (8) are used to connect the connecting plate (564) and the nozzle (9).

9. The filter bag fixing mechanism of the pulse bag dust collector according to claim 8 is characterized in that: The rotating member (7) comprises a rotating block (71) and fan blades (72); the rotating block (71) is fixedly mounted on the top of the rotating rod (55); a plurality of fan blades (72) are provided, and the plurality of fan blades (72) are equidistantly distributed outside the rotating block (71).

10. The filter bag fixing mechanism of the pulse bag dust collector according to claim 8, characterized in that: The buffer component (8) comprises a buffer rod (81), a buffer plate (82) and a buffer spring (83); one end of the buffer rod (81) is fixedly mounted on the bottom of the nozzle (9); the buffer plate (82) is fixedly mounted on the bottom of the buffer rod (81); the connecting plate (564) is slidably sleeved on the outside of the buffer rod (81); the buffer spring (83) is sleeved on the outside of the buffer rod (81); and two ends of the buffer spring (83) are respectively fixedly connected to the connecting plate (564) and the buffer plate (82).

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