Dust collecting device and process for producing cement grinding aids

Abstract

The application belongs to the technical field of dust collecting equipment, and particularly relates to a dust collecting device based on cement grinding aid production, which comprises a dust collecting main body, a partition plate fixedly connected in the dust collecting main body, and cloth bag devices uniformly distributed on the partition plate and detachably connected with the partition plate; the cloth bag devices are detachably connected with the partition plate, and a connecting seat provided with a through hole is arranged on the cloth bag devices; an elastic net is fixedly connected on the connecting seat, and a cloth bag is connected on the elastic net; a plurality of extruding plates for extruding the elastic net are uniformly distributed along the circumference in the elastic net, the movement direction of the extruding plates is close to or away from the central axis of the connecting seat, and the movement directions of adjacent extruding plates are opposite; a pulse dust cleaning structure for dust cleaning of the cloth bag is arranged on the dust collecting main body; the dust collecting device based on cement grinding aid production is integrated with mechanical dust cleaning and pulse gas dust cleaning, and effectively solves the problem of poor dust cleaning capacity of the existing dust collecting device based on cement grinding aid production.

Description

Technical Field

[0001] This invention belongs to the field of dust collection equipment technology, specifically relating to a dust collection device and process for cement grinding aid production. Background Technology

[0002] In the production of cement grinding aids, dust is easily generated during the feeding, conveying, and mixing processes because the raw materials are mostly in powder form (such as fly ash, mineral powder, and salts). Therefore, dust collection devices are key equipment for ensuring production safety, improving the working environment, reducing material waste, and meeting environmental protection requirements. The most commonly used and effective dust collection device in cement grinding aid production is the bag filter. Air is transported to the bag filter by a fan, and the air is filtered to collect dust.

[0003] However, existing baghouse dust collectors typically use a pulse-jet cleaning system to blow dust off the filter bags into the collector. But after prolonged use, the dust on the filter bags becomes stubborn and adheres to them, making it difficult for the pulse-jet cleaning system to blow it off. This affects the filtration efficiency of the filter bags, leading to an increase in the dust concentration in the exhaust air and impacting the dust removal effect of the baghouse dust collector. Therefore, regularly disassembling the filter bags and cleaning the dust on them has become an essential task. Summary of the Invention

[0004] In view of the above situation and to overcome the defects of the prior art, the present invention provides a dust collection device and process for cement grinding aid production that integrates mechanical dust removal and pulse gas dust removal, which effectively solves the problem of poor dust removal capacity of existing dust collection devices for cement grinding aid production.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a dust collection device for cement grinding aid production, comprising a dust collection body, a partition fixedly connected inside the dust collection body, and bag devices detachably connected to the partition evenly distributed on the partition; the dust collection body is provided with an air inlet pipe and an air outlet pipe corresponding to the air inlet pipe, the bag devices collect dust in the air entering through the air inlet pipe, and clean air is discharged through the air outlet pipe; the bag devices are detachably connected to the partition and provided with a connecting seat with through holes, an elastic mesh is fixedly connected to the connecting seat, and a bag is connected to the elastic mesh; multiple extrusion plates are evenly distributed along the circumference of the elastic mesh to compress the elastic mesh, the movement direction of the extrusion plates is towards and away from the central axis of the connecting seat and the movement direction of adjacent extrusion plates is opposite; the dust collection body is provided with a pulse cleaning structure for cleaning the bag.

[0006] Furthermore, the dust collection body includes a dust collection shell, a collection hopper is provided on the dust collection shell, and an air inlet pipe is provided on the collection hopper; a feeder is also provided on the collection hopper, and a dust outlet pipe is connected to the feeder; a dust removal shell is detachably connected to the dust collection shell, and an air outlet pipe is provided on the dust removal shell.

[0007] Furthermore, a guide frame is connected to the connecting seat, and the extrusion plate is slidably connected to the guide frame; the elastic net is provided with an inner shaft and an outer cylinder that can move up and down along the axial direction of the connecting seat, the inner shaft passes through the outer cylinder and the inner shaft and the outer cylinder move in opposite directions; multiple inner drive rods are rotatably connected from top to bottom on the inner shaft, and the inner drive rods are rotatably connected to the corresponding extrusion plates; multiple outer drive rods are rotatably connected from top to bottom on the outer cylinder, and the extrusion plates adjacent to the extrusion plates rotatably connected to the inner drive rods are rotatably connected to the outer drive rods.

[0008] Furthermore, a bidirectional crank is rotatably connected to the guide frame, and the center of the bidirectional crank is rotatably connected to the guide frame; an upper input rod is rotatably connected to one end of the bidirectional crank, and the upper input rod is rotatably connected to the inner shaft; a lower input rod is rotatably connected to the other end of the bidirectional crank, and an extension frame is fixedly connected to the outer cylinder, with the lower input rod rotatably connected to the extension frame; an extension rod is fixedly connected to the guide frame, and the extension frame and the extension rod are slidably connected; an inner spline shaft is fixedly connected to the inner shaft, and an outer spline shaft sleeved on the inner spline shaft is fixedly connected to the outer cylinder; the dust collection body is provided with a drive device that reciprocates by pressing the outer spline shaft and the inner spline shaft in sequence.

[0009] Furthermore, the driving device includes a lower lifting frame and an upper lifting frame arranged from bottom to top. A guide rod is fixedly connected to the dust collection body to guide the upper lifting frame and the lower lifting frame. The dust collection body is provided with a driving structure that drives the upper lifting frame and the upper lifting frame to move synchronously in opposite directions. A lower spline cylinder that cooperates with the outer spline shaft is rotatably connected to the lower lifting frame. A pressing ring that presses the outer spline shaft is fixedly connected inside the lower spline cylinder. An upper spline cylinder with one end sealed is rotatably connected to the upper lifting frame. The upper spline cylinder is slidably connected to the inner spline shaft.

[0010] Furthermore, the drive structure includes a pair of meshing synchronous pulleys, each of which is coaxially fixed to a first crank, and each of the first cranks is rotatably connected to a connecting rod; a sleeve is fixedly connected to the upper lifting frame, and a pair of connecting frames are fixedly connected to the sleeve, with the pair of connecting rods rotatably connected to the pair of connecting frames respectively; a geared motor is fixedly connected to the dust collection body, and the output end of the geared motor is coaxially fixedly connected to one of the synchronous pulleys.

[0011] Furthermore, a pair of second cranks are rotatably connected to the dust collection body, each coaxially arranged with a pair of first cranks. A synchronizing rod is fixedly connected to the rotating shaft of the first crank and the connecting rod. A traction rod is rotatably connected to the second crank. The rotating shaft of the second crank and the traction rod is fixedly connected to the other end of the synchronizing rod. A sliding rod is fixedly connected to the lower lifting frame. A pair of traction frames are fixedly connected to the sliding rod. The pair of traction rods are rotatably connected to the pair of traction frames.

[0012] Furthermore, the connecting seat includes a threaded cylinder, and the partition plate is provided with a through hole that mates with the threaded cylinder; a knob is fixedly connected to the threaded cylinder, and a connecting disc that is screwed to the threaded cylinder is fixedly connected to the partition plate.

[0013] Furthermore, the pulse cleaning structure includes an air chamber with a pulse tube connected to it; the pulse tube is equipped with an electromagnetic pulse valve and an air jet pipe for spraying air onto the filter bag.

[0014] A dust collection process for cement grinding aid production includes the following steps:

[0015] S1. Air carrying dust enters the dust collection body through the air inlet pipe. The dust is intercepted on the outer surface by the filter bag. The purified gas passes through the filter bag and is discharged through the air outlet pipe.

[0016] S2. Intermittently activate the pulse cleaning structure. The pulse cleaning structure blows the dust on the surface of the filter bag into the dust collection body through high-pressure jet.

[0017] S3. The extrusion plate intermittently extrudes the elastic mesh in different directions, causing the elastic mesh to deform the filter bag in different directions, so that the stubborn dust on the filter bag falls into the dust collection body.

[0018] Compared with the prior art, the advantages and beneficial effects of the present invention are as follows:

[0019] 1. In use, the present invention physically squeezes the elastic mesh and cloth bag with an extrusion plate to remove stubborn dust adhesion; combined with the pulse cleaning structure to clean the cloth bag with high-pressure jet pulse gas, the present invention can effectively extend the single use time of the cloth bag, avoid frequent disassembly of the cloth bag, and effectively reduce the labor intensity of the workers.

[0020] 2. In use, the invention, through the arrangement of the inner shaft, inner drive rod, outer cylinder, outer drive rod, and extrusion plate, causes the elastic mesh to deform when the outer cylinder is driven by the outer drive rod and extrusion plate. The deformation direction is perpendicular to the deformation direction driven by the inner drive rod, so that the elastic mesh deforms in different directions, thereby improving the dust removal effect of the extrusion plate on the filter bag.

[0021] 3. In use, the invention utilizes an upper input rod, a bidirectional crank, and a lower input rod to enable the inner shaft and outer cylinder to move synchronously in opposite directions. This allows the drive device to continuously move the inner shaft and outer cylinder simply by pressing the outer spline shaft and inner spline shaft back and forth in sequence. Furthermore, during installation, the inner and outer spline shafts only need to be aligned and connected to the upper and lower spline cylinders respectively, eliminating the need for additional operations and thus simplifying installation and improving the convenience of this invention. Attached Figure Description

[0022] Figure 1This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0024] Figure 3 This is a front view of the driving device in this invention;

[0025] Figure 4 This is a schematic diagram of the upper lifting frame in this invention;

[0026] Figure 5 This is a schematic diagram of the driving structure in this invention;

[0027] Figure 6 This is a schematic diagram showing the engagement state of the synchronous pulley, first crank, second crank, synchronous rod, and other structures in this invention.

[0028] Figure 7 This is a schematic diagram showing the fit of the elastic mesh, threaded cylinder, internal spline shaft, external spline shaft, upper spline cylinder, and lower spline cylinder in this invention.

[0029] Figure 8 This is a top view showing the mating state of the elastic mesh, threaded cylinder, internal spline shaft, external spline shaft, and other structures in this invention.

[0030] Figure 9 This is a schematic diagram showing the engagement state of the extrusion plate, inner drive rod, outer drive rod, inner shaft, outer cylinder, upper input rod, and bidirectional crank in this invention.

[0031] Figure 10 This is a schematic diagram of the guide frame structure in this invention;

[0032] In the diagram: 1. Collection hopper, 2. Dust collection housing, 3. Dust removal housing, 4. Drive unit, 5. Air outlet pipe, 6. Pulse cleaning structure, 7. Air inlet pipe, 8. Feeder, 9. Dust outlet pipe, 10. Filter bag, 11. Baffle plate, 12. Lower lifting frame, 13. Upper lifting frame, 14. Lower splined cylinder, 15. Guide rod, 16. Upper splined cylinder, 17. Gear motor, 18. Drive structure, 19. Sleeve, 20. Synchronous pulley, 21. Synchronous rod, 22. Traction rod, 23. Traction frame, 24. Slide rod, 25. 26. Connecting frame, 27. Connecting rod, 28. First crank, 29. Second crank, 30. Elastic mesh, 31. Threaded cylinder, 32. Knob, 33. Connecting disc, 34. External splined shaft, 35. Internal splined shaft, 36. Extrusion plate, 37. Guide frame, 38. Internal drive rod, 39. External drive rod, 40. Inner shaft, 41. Outer cylinder, 42. Extension frame, 43. Upper input rod, 44. Bidirectional crank, 45. Lower input rod, 46. Extension rod, 47. Fixed rod, 48. Support cylinder, 49. Guide component. Detailed Implementation

[0033] A dust collection device for cement grinding aid production, such as Figure 1-10 As shown, the system includes a dust collection body, with a partition 11 fixedly connected inside. Bag 10 devices, detachably connected to the partition 11, are evenly distributed on the partition 11. The dust collection body is equipped with an air inlet pipe 7 and an air outlet pipe 5 corresponding to the air inlet pipe 7. The bag 10 devices collect dust from the air entering through the air inlet pipe 7, and clean air is discharged through the air outlet pipe 5. A connecting seat with through holes is detachably connected to the partition 11 for the bag 10 devices. An elastic mesh 29 is fixedly connected to the connecting seat, and bag 10 devices are connected to the elastic mesh 29. Four extrusion plates 35 are evenly distributed along the circumference of the elastic mesh 29, pressing against it. The movement direction of the extrusion plates 35 is towards and away from the central axis of the connecting seat, and the movement directions of adjacent extrusion plates 35 are opposite. The dust collection body is equipped with a pulse cleaning structure 6 for cleaning the bag 10.

[0034] In use, air carrying dust enters the dust collection body through the air inlet pipe 7. The dust is intercepted on the outer surface by the filter bag 10. The purified gas passes through the filter bag 10 and is discharged through the air outlet pipe 5. The pulse cleaning structure 6 is activated intermittently. The pulse cleaning structure 6 blows the dust on the surface of the filter bag 10 into the dust collection body through high-pressure jet. The extrusion plate 35 is intermittently extruded on the elastic net 29 in different directions. The elastic net 29 causes the filter bag 10 to deform in different directions, so that the stubborn dust on the filter bag 10 falls into the dust collection body.

[0035] In use, the present invention physically squeezes the elastic net 29 and the cloth bag 10 by the extrusion plate 35 to remove stubborn dust adhesion; combined with the pulse cleaning structure 6 to perform high-pressure jet pulse gas cleaning of the cloth bag 10, the present invention can effectively extend the single use time of the cloth bag 10, avoid frequent disassembly of the cloth bag 10, and effectively reduce the labor intensity of the workers.

[0036] Furthermore, the dust collection body includes a dust collection shell 2, on which a collection hopper 1 for collecting dust is provided, and an air inlet pipe 7 is provided on the collection hopper 1; a feeder 8 is also provided on the collection hopper 1, and a dust outlet pipe 9 is connected to the feeder 8, through which the dust in the collection hopper 1 is discharged; a dust removal shell 3 is detachably connected to the dust collection shell 2, and an air outlet pipe 5 is provided on the dust removal shell 3.

[0037] Furthermore, such as Figure 9As shown, a guide frame 36 is connected to the connecting seat, and the extrusion plate 35 is slidably connected to the guide frame 36; the elastic net 29 is provided with an inner shaft 39 and an outer cylinder 40 that can move up and down along the axial direction of the connecting seat. The inner shaft 39 passes through the outer cylinder 40 and the inner shaft 39 and the outer cylinder 40 move in opposite directions; multiple sets of inner drive rods 37 are rotatably connected from top to bottom on the inner shaft 39, and each set of inner drive rods 37 is provided in pairs. Each pair of inner drive rods 37 is rotatably connected to a pair of corresponding extrusion plates 35; multiple sets of outer drive rods 38 are rotatably connected from top to bottom on the outer cylinder 40, and each set of outer drive rods 38 is provided in pairs. The extrusion plates 35 adjacent to the extrusion plates 35 rotatably connected to the inner drive rods 37 are rotatably connected to a pair of outer drive rods 38 respectively.

[0038] When the extrusion plate 35 needs to move, the inner shaft 39 and the outer cylinder 40 move synchronously in opposite directions. The inner shaft 39 drives a pair of extrusion plates 35 through a pair of inner drive rods 37 to extrude the elastic mesh 29, causing the elastic mesh 29 to deform under the action of the extrusion plates 35. The elastic mesh 29 causes the filter bag 10 to deform. At the same time, the outer cylinder 40 drives another pair of extrusion plates 35 away from the elastic mesh 29 through a pair of outer drive rods 38, causing the elastic mesh 29 to deform under the action of the pair of inner drive rods 37 and the extrusion plates 35. When the outer cylinder 40 causes the elastic mesh 29 to deform through the outer drive rods 38 and the extrusion plates 35, the deformation direction is perpendicular to the deformation direction driven by the inner drive rods 37, so that the elastic mesh 29 deforms in different directions, thereby improving the dust removal effect of the extrusion plate 35 on the filter bag 10.

[0039] Furthermore, such as Figure 9 As shown, a bidirectional crank 43 is rotatably connected to the guide frame 36, and the center of the bidirectional crank 43 is rotatably connected to the guide frame 36; an upper input rod 42 is rotatably connected to one end of the bidirectional crank 43, and the upper input rod 42 is rotatably connected to the inner shaft 39; a lower input rod 44 is rotatably connected to the other end of the bidirectional crank 43; an extension frame 41 is fixedly connected to the outer cylinder 40, and the lower input rod 44 is rotatably connected to the extension frame 41; an extension rod 45 is fixedly connected to the guide frame 36, and the extension frame 41 is slidably connected to the extension rod 45; an inner spline shaft 34 is fixedly connected to the inner shaft 39, and an outer spline shaft 33 sleeved on the inner spline shaft 34 is fixedly connected to the outer cylinder 40; a drive device 4 is provided on the dust collection body to reciprocate pressing the outer spline shaft 33 and the inner spline shaft 34 in sequence.

[0040] When the inner shaft 39 and outer cylinder 40 are in motion, the drive device 4 reciprocates by pressing the outer spline shaft 33 and the inner spline shaft 34 in sequence. When the drive device 4 presses the outer spline shaft 33, the outer spline shaft 33 drives the outer cylinder 40 to move downward. The outer cylinder 40 drives the lower input rod 44 to move through the extension frame 41. The lower input rod 44 drives the bidirectional crank 43 to rotate. The bidirectional crank 43 drives the inner shaft 39 to move upward through the upper input rod 42. When the drive device 4 presses the inner spline shaft 34, the inner spline shaft 34 drives the inner shaft 39 to move downward. Under the action of the upper input rod 42, the bidirectional crank 43, and the lower input rod 44, the outer cylinder 40 moves upward.

[0041] In use, the invention utilizes the upper input rod 42, the bidirectional crank 43, and the lower input rod 44 to enable the inner shaft 39 and the outer cylinder 40 to move synchronously in opposite directions. The drive device 4 only needs to press the outer spline shaft 33 and the inner spline shaft 34 back and forth sequentially to continuously move the inner shaft 39 and the outer cylinder 40. During installation, the bag 10 only needs to be aligned and connected with the inner spline shaft 34 and the outer spline shaft 33 to the upper spline cylinder 16 and the lower spline cylinder 14 of the drive device 4, respectively, without any additional operations. This facilitates installation and improves the convenience of the invention.

[0042] Furthermore, such as Figure 3-6 As shown, the driving device 4 includes a lower lifting frame 12 and an upper lifting frame 13 arranged from bottom to top. A guide rod 15 is fixedly connected to the dust collection body to guide the upper lifting frame 13 and the lower lifting frame 12. The dust collection body is provided with a driving structure 18 that drives the upper lifting frame 13 and the lower lifting frame 13 to move synchronously in opposite directions. A lower spline cylinder 14 that cooperates with the outer spline shaft 33 is rotatably connected to the lower lifting frame 12. A pressing ring that presses the outer spline shaft 33 is fixedly connected inside the lower spline cylinder 14. An upper spline cylinder 16 with one end sealed is rotatably connected to the upper lifting frame 13. The upper spline cylinder 16 is slidably connected to the inner spline shaft 34.

[0043] When the drive device 4 is in use, the lower lifting frame 12 and the upper lifting frame 13 move synchronously in opposite directions under the action of the drive structure 18. The upper lifting frame 13 presses the inner spline shaft 34 through the upper spline cylinder 16. When the inner spline shaft 34 rises, the upper spline cylinder 16 rises with the upper lifting frame 13. The lower lifting frame 12 presses the outer spline shaft 33 through the pressing ring on the lower spline cylinder 14. When the outer spline shaft 33 rises, the lower spline cylinder 14 rises with the lower lifting frame 12.

[0044] Furthermore, the drive structure 18 includes a pair of meshing synchronous pulleys 20, each of the pair of synchronous pulleys 20 being coaxially fixed to a first crank 27, and each of the pair of first cranks 27 being rotatably connected to a connecting rod 26; a sleeve 19 is fixedly connected to the upper lifting frame 13, and a pair of connecting frames 25 are fixedly connected to the sleeve 19, with the pair of connecting rods 26 respectively rotatably connected to the pair of connecting frames 25; a reduction motor 17 is fixedly connected to the dust collection body, and the output end of the reduction motor 17 is coaxially fixedly connected to one of the synchronous pulleys 20.

[0045] When the drive structure 18 is in use, the geared motor 17 is started, and the geared motor 17 drives one of the synchronous pulleys 20 to rotate. The synchronous pulley 20 drives the other synchronous pulley 20 to rotate. The pair of synchronous pulleys 20 synchronously drive a pair of first cranks 27 to rotate. The first cranks 27 drive the connecting frame 25 to move through the connecting rod 26. The connecting frame 25 drives the sleeve 19 to move up and down. The sleeve 19 drives the upper lifting frame 13 to move up and down.

[0046] Furthermore, a pair of second cranks 28 are rotatably connected to the dust collection body, each coaxially arranged with a pair of first cranks 27. A synchronizing rod 21 is fixedly connected to the rotating shaft of the first crank 27 and the connecting rod 26. A traction rod 22 is rotatably connected to the second crank 28. The rotating shaft of the second crank 28 and the traction rod 22 is fixedly connected to the other end of the synchronizing rod 21. A sliding rod 24 is fixedly connected to the lower lifting frame 12. A pair of traction frames 23 are fixedly connected to the sliding rod 24. The pair of traction rods 22 are rotatably connected to the pair of traction frames 23.

[0047] When the first crank 27 rotates, it drives the second crank 28 to rotate via the synchronizing rod 21. The second crank 28 drives the traction rod 22 to rotate. The traction rod 22 drives the slide rod 24 to move up and down via the traction frame 23. The slide rod 24 drives the lower lifting frame 12 to move up and down. By setting the synchronizing rod 21, the first crank 27 and the second crank 28 rotate in the same direction but in opposite states, which makes the slide rod 24 and the sleeve 19 move in opposite directions, and thus makes the upper lifting frame 13 and the lower lifting frame 12 move in opposite directions.

[0048] Furthermore, such as Figure 7As shown, the connecting seat includes a threaded cylinder 30, and a through hole on the partition plate 11 that mates with the threaded cylinder 30; a knob 31 is fixedly connected to the threaded cylinder 30, and a connecting plate 32 that is screwed to the threaded cylinder 30 is fixedly connected to the partition plate 11; the threaded cylinder 30 and the filter bag 10 are fixed to the partition plate 11 by the engagement of the threaded cylinder 30 and the connecting plate 32; the dust collection body is provided with a replacement port (not shown in the figure) corresponding to the filter bag 10, and a cover plate that mates with the replacement port is rotatably connected to the dust collection body; the guide frame 36 includes, from bottom to top, a... Multiple sets of fixing rods 46 are provided, with the uppermost fixing rod 46 fixedly connected to the threaded cylinder 30; adjacent sets are fixedly connected to a support cylinder 47 sleeved on the outer cylinder 40, and the support leg is provided with a guide member 48 for guiding the extrusion plate 35; the guide member 48 includes a primary rod fixedly connected to the support cylinder 47, a primary cylinder slidably connected to the primary rod, and a secondary cylinder slidably connected to the primary cylinder and fixedly connected to the extrusion plate 35; through the cooperation of the primary rod, the primary cylinder, and the secondary cylinder, the extrusion plate 35 is guided to improve the stability of the extrusion plate 35.

[0049] Furthermore, the pulse cleaning structure 6 includes an air tank, to which a pulse tube is connected; the pulse tube is equipped with an electromagnetic pulse valve, and also with an air jet pipe for spraying air onto the filter bag 10; when the pulse cleaning structure 6 is in use, the air tank is activated, and the air tank, through the cooperation of the electromagnetic pulse valve, the pulse tube, and the air jet pipe, sprays high-pressure air into the filter bag 10 so that the dust on the filter bag 10 is blown off.

[0050] A dust collection process for cement grinding aid production includes the following steps:

[0051] S1. Air carrying dust enters the dust collection body through the air inlet pipe 7. The dust is intercepted on the outer surface by the filter bag 10. The purified gas passes through the filter bag 10 and is discharged through the air outlet pipe 5.

[0052] S2. The air tank is started intermittently. The air tank, through the cooperation of the electromagnetic pulse valve, pulse pipe and jet pipe, sprays high pressure into the bag 10 to blow off the dust on the bag 10. The blown-off dust falls into the collection hopper 1 and is discharged through the feeder 8 and dust outlet pipe 9.

[0053] S3. Intermittently start the reduction motor 17. The reduction motor 17 drives one of the synchronous pulleys 20 to rotate, and the synchronous pulley 20 drives the other synchronous pulley 20 to rotate. The pair of synchronous pulleys 20 synchronously drive a pair of first cranks 27 to rotate. The first cranks 27 drive the connecting frame 25 to move through the connecting rod 26. The connecting frame 25 drives the sleeve 19 to move up and down. The sleeve 19 drives the upper lifting frame 13 to move up and down. The first cranks 27 drive the second cranks 28 to rotate through the synchronous rod 21. The second cranks 28 drive the traction rod 22 to rotate. The traction rod 22 drives the slide rod 24 to move up and down through the traction frame 23. The slide rod 24 drives the lower lifting frame 12 to move up and down. By setting the synchronous rod 21, the first cranks 27 and the second cranks 28 rotate in the same direction but in opposite states. This makes the slide rod 24 and the sleeve 19 move in opposite directions, and thus makes the upper lifting frame 13 and the lower lifting frame 12 move in opposite directions.

[0054] The lower lifting frame 12 presses the outer spline shaft 33 through the pressing ring on the lower spline cylinder 14. The outer spline shaft 33 drives the outer cylinder 40 to move downward. The outer cylinder 40 drives the lower input rod 44 to move through the extension frame 41. The lower input rod 44 drives the bidirectional crank 43 to rotate. The bidirectional crank 43 drives the inner shaft 39 to move upward through the upper input rod 42. The outer cylinder 40 drives a pair of extrusion plates 35 to extrude the elastic net 29 through a pair of external drive rods 38, causing the elastic net 29 to deform under the action of the extrusion plates 35. The elastic net 29 causes the cloth bag 10 to deform. At the same time, the inner shaft 39 drives another pair of extrusion plates 35 away from the elastic net 29 through a pair of internal drive rods 37, causing the elastic net 29 to deform under the action of a pair of external drive rods 38 and extrusion plates 35.

[0055] Additionally, when the upper lifting frame 13 squeezes the inner spline shaft 34 through the upper spline cylinder 16, the inner spline shaft 34 drives the inner shaft 39 to move downwards. The inner shaft 39 drives a pair of extrusion plates 35 through a pair of inner drive rods 37 to squeeze the elastic mesh 29, causing the elastic mesh 29 to deform under the action of the extrusion plates 35, which in turn causes the filter bag 10 to deform. At the same time, under the action of the upper input rod 42, the bidirectional crank 43, and the lower input rod 44, the outer cylinder 40 moves upwards. The outer cylinder 40 drives another pair of extrusion plates 35 away from the elastic mesh 29 through a pair of outer drive rods 38, causing the elastic mesh 29 to deform under the action of the pair of inner drive rods 37 and the extrusion plates 35. When the inner shaft 39 causes the elastic mesh 29 to deform through the inner drive rods 37 and the extrusion plates 35, the deformation direction is perpendicular to the deformation direction driven by the outer drive rods 38, causing the elastic mesh 29 to deform in different directions, thereby improving the dust removal effect of the extrusion plates 35 on the filter bag 10.

Claims

1. A dust collection device for cement grinding aid production, comprising a dust collection body, a partition (11) fixedly connected inside the dust collection body, and a bag (10) device detachably connected to the partition (11) evenly distributed on the partition (11); the dust collection body is provided with an air inlet pipe (7) and an air outlet pipe (5) corresponding to the air inlet pipe (7), the bag (10) device collects dust in the air entering through the air inlet pipe (7), and clean air is discharged through the air outlet pipe (5); characterized in that: The bag (10) device is detachably connected to the partition (11) and has a through hole. An elastic net (29) is fixed on the connecting seat, and the bag (10) is connected to the elastic net (29). Multiple extrusion plates (35) are evenly distributed along the circumference of the elastic net (29) to extrude the elastic net (29). The movement direction of the extrusion plates (35) is towards and away from the central axis of the connecting seat, and the movement direction of adjacent extrusion plates (35) is opposite. The dust collection body is provided with a pulse cleaning structure (6) for cleaning the bag (10). The connecting seat is connected to a guide frame (36), and the extrusion plate (35) is slidably connected to the guide frame (36); the elastic net (29) is provided with an inner shaft (39) and an outer cylinder (40) that can move up and down along the axial direction of the connecting seat. The inner shaft (39) passes through the outer cylinder (40) and the inner shaft (39) and the outer cylinder (40) move in opposite directions; multiple inner drive rods (37) are rotatably connected from top to bottom on the inner shaft (39), and the inner drive rods (37) are rotatably connected to the corresponding extrusion plate (35); multiple outer drive rods (38) are rotatably connected from top to bottom on the outer cylinder (40), and the extrusion plate (35) adjacent to the extrusion plate (35) rotatably connected to the inner drive rod (37) is rotatably connected to the outer drive rod (38); A bidirectional crank (43) is rotatably connected to the guide frame (36), and the center of the bidirectional crank (43) is rotatably connected to the guide frame (36); an upper input rod (42) is rotatably connected to one end of the bidirectional crank (43), and the upper input rod (42) is rotatably connected to the inner shaft (39); a lower input rod (44) is rotatably connected to the other end of the bidirectional crank (43); an extension frame (41) is fixedly connected to the outer cylinder (40), and the lower input rod (44) is rotatably connected to the extension frame (41); an extension rod (45) is fixedly connected to the guide frame (36), and the extension frame (41) is slidably connected to the extension rod (45); an inner spline shaft (34) is fixedly connected to the inner shaft (39), and an outer spline shaft (33) sleeved on the inner spline shaft (34) is fixedly connected to the outer cylinder (40); a drive device (4) is provided on the dust collection body to reciprocate pressing the outer spline shaft (33) and the inner spline shaft (34) in sequence. The drive device (4) includes a lower lifting frame (12) and an upper lifting frame (13) arranged from bottom to top. A guide rod (15) is fixedly connected to the dust collection body to guide the upper lifting frame (13) and the lower lifting frame (12). The dust collection body is provided with a drive structure (18) that drives the upper lifting frame (13) and the upper lifting frame (13) to move synchronously in opposite directions. A lower spline cylinder (14) that cooperates with the outer spline shaft (33) is rotatably connected to the lower lifting frame (12). A pressing ring that presses the outer spline shaft (33) is fixedly connected inside the lower spline cylinder (14). An upper spline cylinder (16) with one end sealed is rotatably connected to the upper lifting frame (13). The upper spline cylinder (16) is slidably connected to the inner spline shaft (34). The drive structure (18) includes a pair of meshing synchronous pulleys (20), each of the pair of synchronous pulleys (20) is coaxially fixed to a first crank (27), and each of the pair of first cranks (27) is rotatably connected to a connecting rod (26); a sleeve (19) is fixedly connected to the upper lifting frame (13), and a pair of connecting frames (25) are fixedly connected to the sleeve (19), and the pair of connecting rods (26) are rotatably connected to the pair of connecting frames (25); a reduction motor (17) is fixedly connected to the dust collection body, and the output end of the reduction motor (17) is coaxially fixed to one of the synchronous pulleys (20); The dust collection body is rotatably connected to a pair of second cranks (28) that are coaxially arranged with a pair of first cranks (27). A synchronizing rod (21) is fixedly connected to the rotating shaft of the first crank (27) and the connecting rod (26). A traction rod (22) is rotatably connected to the second crank (28). The rotating shaft of the second crank (28) and the traction rod (22) is fixedly connected to the other end of the synchronizing rod (21). A sliding rod (24) is fixedly connected to the lower lifting frame (12). A pair of traction frames (23) are fixedly connected to the sliding rod (24). The pair of traction rods (22) are rotatably connected to the pair of traction frames (23).

2. The dust collection device for cement grinding aid production as described in claim 1, characterized in that: The dust collection body includes a dust collection shell (2), a collection hopper (1) is provided on the dust collection shell (2), and an air inlet pipe (7) is provided on the collection hopper (1); a feeder (8) is also provided on the collection hopper (1), and a dust outlet pipe (9) is connected to the feeder (8); a dust removal shell (3) is detachably connected to the dust collection shell (2), and an air outlet pipe (5) is provided on the dust removal shell (3).

3. The dust collection device for cement grinding aid production as described in claim 1, characterized in that: The connecting seat includes a threaded cylinder (30), and a through hole is provided on the partition plate (11) to cooperate with the threaded cylinder (30); a knob (31) is fixedly connected to the threaded cylinder (30), and a connecting plate (32) is fixedly connected to the partition plate (11) to be screwed to the threaded cylinder (30).

4. The dust collection device for cement grinding aid production as described in claim 1, characterized in that: The pulse cleaning structure (6) includes an air tank, on which a pulse tube is connected; the pulse tube is equipped with an electromagnetic pulse valve, and the pulse tube is also equipped with an air jet pipe for spraying air onto the cloth bag (10).

5. A dust collection process for cement grinding aid production, characterized in that: The dust collection device for cement grinding aid production as described in any one of claims 1-4 further includes the following steps: S1. Air carrying dust enters the dust collection body through the air inlet pipe (7). The dust is intercepted on the outer surface by the cloth bag (10). The purified gas passes through the cloth bag (10) and is discharged through the air outlet pipe (5). S2. Intermittently start the pulse cleaning structure (6). The pulse cleaning structure (6) blows the dust on the surface of the filter bag (10) into the dust collection body through high-pressure jet. S3. The extrusion plate (35) is intermittently extruded on the elastic net (29) in different directions. The elastic net (29) causes the cloth bag (10) to deform in different directions so that the stubborn dust on the cloth bag (10) falls into the dust collection body.

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