A pulse dust removal device for the production of powdered emulsion explosives

Abstract

The present invention discloses a pulse dust removal device for the production of powdered emulsion explosives, comprising a body, a partition plate fixedly connected to the interior of the body, a filter bag connected to the bottom of the partition plate, a pulse component located on the top of the partition plate, the pulse component capable of generating a high-pressure airflow and guiding the airflow to the interior of the filter bag, and a blower connected to the left side of the body, the blower being used to inject the dust-laden airflow into the interior of the body. The present invention solves the problem of clogging at the bottom of the filter bag during traditional single-pulse cleaning through the synergistic effect of the pulse component and the cleaning structure, and is particularly suitable for long filter bag scenarios. At the same time, the transmission structure drives the cleaning structure to move, covering a larger area of the filter bag surface, reducing blind spots for cleaning, and improving dust stripping efficiency. In addition, mechanical wiping can effectively remove sticky dust, avoiding secondary dusting caused by relying solely on airflow.

Description

Technical Field

[0001] The invention relates to the technical field of powdered emulsion explosive production, in particular to a pulse dust removal device for powdered emulsion explosive production. Background Art

[0002] Powdered emulsion explosives are a type of industrial mixed explosive widely used in mining, engineering blasting, and other fields. They offer superior safety, stability, and water resistance compared to traditional explosives. However, dust treatment is required during processing to reduce environmental pollution from waste gases.

[0003] For example, the patent application number published on the China Patent Network is: 202311075234.8, and the patent name is: A pulse dust removal device, comprising: a pulse dust removal mechanism, the pulse dust removal mechanism is composed of a dust removal box, an ash hopper, a pulse filter bag and a pulse control mechanism; an anti-clogging component, the anti-clogging component is provided in two groups, and the two groups of anti-clogging components are symmetrically rotatably installed at the two ends of the bottom of the lifting plate, and the lower ends of the two groups of anti-clogging components are both fitted with the two sides of the inside of the ash hopper. The present invention has the advantage of being able to cooperate with the electric push rod and the lifting plate, so that when the pulse control mechanism controls the pulse filter bag to expand and process the dust, the electric push rod cooperates with the lifting plate to lift and rotate the cleaning component through the linkage component, lift and clean the side wall of the pulse filter bag, and make a large amount of dust attached to the side wall be cleaned twice, thereby effectively avoiding the cleanliness of the side wall of the pulse filter bag and preventing a large amount of highly adherent dust from continuing to accumulate on the side wall of the pulse filter bag, thereby effectively improving the filtering performance of the pulse dust removal equipment.

[0004] However, existing dust removal equipment mainly cleans the filter bags through the impact of airflow. When the pulsed airflow propagates in the long filter bags, the kinetic energy will be attenuated due to friction resistance and airflow diffusion, resulting in insufficient cleaning force at the bottom of the filter bags, dust accumulation at the bottom of the filter bags, increased resistance, increased system energy consumption, and in severe cases, causing partial damage to the filter bags.

[0005] Secondly, during high-pressure pulse blowing, the compressed air released instantly will lift up the dust peeled off the surface of the filter bag, forming a "dust cloud". Some fine dust particles (such as PM2.5) will re-attach to the surface of adjacent filter bags due to electrostatic adsorption or inertia, reducing the cleaning efficiency.

[0006] Finally, when the filter bag is clogged with dust, the impact of high-pressure airflow causes the filter bag to expand and contract instantly, and the fiber fatigue breaks under repeated stress; if the filter bag support frame is poorly designed, local friction damage will also occur.

[0007] Therefore, it is necessary to design and modify the pulse dust removal device used in the production of powdered emulsion explosives. Summary of the Invention

[0008] In order to solve the problems raised in the above background technology, the purpose of the present invention is to provide a pulse dust removal device for the production of powdered emulsion explosives, which has the advantage of improving cleaning efficiency.

[0009] To achieve the above-mentioned object, the present invention provides the following technical solutions: A pulse dust removal device for the production of powdered emulsion explosives, comprising a body;

[0010] A partition plate is fixedly connected to the interior of the body, and a filter bag is connected to the bottom of the partition plate. The interior of the body is connected to a pulse component located on the top of the partition plate. The pulse component can generate high-pressure airflow and guide the airflow to the interior of the filter bag. The left side of the body is connected to a blower, and the blower is used to inject dust-laden airflow into the interior of the body. A cleaning structure is provided inside the body, and the cleaning structure can wipe the surface of the filter bag. A transmission structure is provided inside the body, and the transmission structure can control the movement of the cleaning structure and expand the cleaning area.

[0011] As a preferred embodiment of the present invention, the cleaning structure includes a frame arranged inside the machine body, the interior of the frame is fixedly connected to a sleeve mounted on the surface of the filter element bag, the inner surface of the sleeve is fixedly connected to a wiping ring, the inner wall of the wiping ring is in contact with the surface of the filter element bag, and the transmission structure can control the vertical lifting and lowering of the frame and use the wiping ring to wipe the surface of the filter element bag.

[0012] As a preferred embodiment of the present invention, the transmission structure includes a bracket fixedly connected to the inside of the machine body, the surface of the bracket is movably connected to a wheel disc through a bearing, the side of the frame close to the wheel disc is fixedly connected to a sleeve plate, the surface of the wheel disc is fixedly connected to a sliding rod located inside the sleeve plate, the sliding rod is slidably connected to the sleeve plate, and the surface of the wheel disc is provided with a linkage structure, which can utilize the power of the blower and drive the wheel disc to rotate continuously.

[0013] As a preferred embodiment of the present invention, the linkage structure includes an extension ring fixedly connected to the surface of the wheel disc, and a drive motor is installed on the front of the blower. The drive motor can drive the blower to operate continuously. The surface transmission of the drive motor is connected with a belt. The end of the belt away from the drive motor passes through the body and is mounted on the surface of the extension ring. When the drive motor is running, it can drive the belt to rotate and use the belt to transmit torque to the extension ring.

[0014] As a preferred embodiment of the present invention, both sides of the top of the frame are fixedly connected with connecting blocks, the interior of the connecting block is movably connected with a shaft rod, the surface of the shaft rod is fixedly connected with a knocking rod, the number of the knocking rods corresponds to the number of filter cartridge bags and is located on both sides of the filter cartridge bag, the inner side of the knocking rod can contact the surface of the filter cartridge bag, and both ends of the shaft rod are provided with a swinging structure, which can control the rotation of the shaft rod and drive the knocking rod to intermittently knock the filter cartridge bag.

[0015] As a preferred embodiment of the present invention, the swing structure includes a connecting plate fixedly connected to both sides of the frame, both ends of the inner side of the connecting plate are movably connected to a rotating wheel through bearings, both ends of the shaft are fixedly connected to a force-bearing rod located on the inner side of the rotating wheel, the force-bearing rod is arranged to be hollow, and the inner side of the rotating wheel is fixedly connected to a push rod located inside the force-bearing rod, and the push rod and the force-bearing rod are slidably connected.

[0016] As a preferred embodiment of the present invention, both sides of the bottom of the dividing plate are fixedly connected with a toothed plate frame, the toothed plate frame is located on both sides of the frame, the outer side of the rotating wheel passes through the outer side of the connecting plate and is installed with a gear, the gear is located on both sides of the toothed plate frame, the teeth on the surface of the gear are engaged with the teeth on both sides of the toothed plate frame, and the gear can be squeezed by the toothed plate frame and continuously rotated when following the vertical lifting of the frame.

[0017] As a preferred embodiment of the present invention, the outer side of the knocking rod is fixedly connected to a movable block, the surface of the movable block is movably connected to a screw assembly through a bearing, the screw assembly is composed of two reciprocating screws, both sides of the screw assembly are threadedly connected to screw sleeves, the outer side of the movable block is fixedly connected to a support plate sleeved on the surface of the screw assembly, the inner side of the screw sleeve is fixedly connected to a spring plate, the side of the spring plate away from the screw sleeve is in contact with the surface of the filter element bag, and the spring plate is elastic.

[0018] As a preferred embodiment of the present invention, the surface of the screw assembly is fixedly connected to a ratchet located on the inner side of the movable block, the outer side of the frame is fixedly connected to an extension rod, a pawl assembly is installed on the side of the extension rod away from the frame, the pawl assembly extends to the outer side of the ratchet away from the extension rod and engages with the ratchet, and the knocking rod can contact the pawl assembly and generate a rotational force when carrying the ratchet to swing.

[0019] As a preferred embodiment of the present invention, the top of the filter element bag is movably connected to the bottom of the dividing plate by a bearing, and the filter element bag can rotate through the bearing, the front of the bracket is fixedly connected to a cross beam, and the interior of the cross beam is movably connected to a transmission rod, and the top end of the transmission rod and the surface of the wheel disc are both installed with an inclined cone wheel, and the inclined cone wheels are meshed with each other, and the bottom end of the transmission rod and the bottom of the filter element bag are fixedly connected to a sprocket, and the surface of the sprocket is provided with a chain belt, and the sprocket at the bottom end of the transmission rod can carry the filter element bag to rotate through the chain belt.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention solves the problem of clogging at the bottom of the filter bag during traditional single-pulse cleaning through the synergistic effect of the pulse component and the cleaning structure. It is particularly suitable for long filter bag scenarios. At the same time, the transmission structure drives the cleaning structure to move, covering a larger area of the filter bag surface, reducing the blind spot of cleaning, and improving the dust stripping efficiency. In addition, mechanical wiping can effectively remove sticky dust (such as ammonium nitrate particles in explosive raw materials), avoiding secondary dust caused by relying solely on airflow.

[0022] 2. The present invention closely fits the surface of the filter bag through the sleeve and the wiping ring, and directly removes attached dust by friction during vertical lifting, reducing the residual dust layer. The integrated design ensures uniform contact between the wiping ring and the filter bag, avoiding local excessive pressure that may cause damage to the filter bag. At the same time, the sleeve can be adapted to filter bags of different diameters, facilitating modular expansion of the equipment.

[0023] 3. The present invention converts rotary motion into vertical reciprocating motion through a wheel disc, a slide rod and a sleeve plate mechanism, with high transmission efficiency and low wear. It utilizes the original power of the blower to drive the cleaning structure, without the need for an additional motor, thus reducing energy consumption and equipment complexity. At the same time, the wheel disc speed is adjustable, indirectly controlling the wiping frequency to adapt to different dust load conditions.

[0024] 4. The present invention transmits the power of the blower's driving motor to the extension ring through a belt, realizing "one machine for multiple uses" and saving energy and equipment costs. The belt passing through the body part can be designed with a sealing structure to prevent dust leakage, meeting the explosion-proof requirements of explosives production. In addition, the belt transmission structure is easy to replace and adjust the tension, reducing the difficulty of operation and maintenance.

[0025] 5. The present invention complements the mechanical cleaning of the wiping ring with the intermittent knocking of the knocking rod, especially for the stubborn dust compacted on the surface of the filter bag. The number of knocking rods corresponds to the filter bag, ensuring that each filter bag is evenly stressed and avoiding local blockage. At the same time, the knocking action is only triggered when the frame is raised or lowered, without additional energy consumption.

[0026] 6. The present invention converts the frame lifting into shaft rotation through the sliding connection of the rotating wheel, the push rod and the force rod. The action is reliable and without delay. The hollow force rod design allows the push rod to adapt to position deviation when sliding to avoid jamming. The swing structure is integrated on both sides of the frame, saving space and being suitable for installation inside narrow equipment.

[0027] 7. The present invention forces the wheel to rotate by meshing the gears with the toothed plate frame when the frame is raised or lowered, ensuring that the knocking frequency is strictly synchronized with the cleaning action. The tooth design on both sides of the toothed plate frame allows the gears to be subjected to bidirectional force during the lifting process, avoiding unidirectional wear. The gear movement can scrape off dust on the surface of the toothed plate frame to prevent dust accumulation from affecting transmission accuracy.

[0028] 8. The present invention drives the screw sleeve to move through the screw assembly, so that the spring plate elastically presses the surface of the filter bag, automatically adjusts the pressure according to the deformation of the filter bag to avoid excessive squeezing, and the two reciprocating screws are spliced to achieve bidirectional expansion of the spring plate to cover a larger area of the filter bag.

[0029] 9. The present invention limits the unidirectional rotation of the screw assembly through the ratchet and pawl assembly, prevents the spring plate from rebounding and loosening, maintains continuous pressing force, and transmits the rotational force to the screw assembly through the ratchet when the knocking rod swings, thereby realizing multi-level utilization of mechanical energy and achieving the effect of driving the screw assembly to rotate continuously.

[0030] 10. The present invention makes the cleaning effects of the wiping ring, knocking rod and spring plate evenly distributed by slowly rotating the filter bag, eliminating the cleaning dead angles of the static filter bag. The inclined cone wheel and chain belt drive transmit the wheel power to the filter bag, without the need for a separate rotating motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the structure of the present invention;

[0032] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0033] Figure 3 It is a schematic diagram of the main view of the local structure of the present invention;

[0034] Figure 4 It is a right side schematic diagram of the local structure of the present invention;

[0035] Figure 5 It is a schematic diagram of the swing structure of the present invention;

[0036] Figure 6 Schematic diagram of the transmission structure of the present invention;

[0037] Figure 7 It is a bottom view schematic diagram of a local structure of the present invention;

[0038] Figure 8 It is a schematic structural diagram of the knocking rod of the present invention.

[0039] In the figure: 1. body; 2. partition plate; 3. filter element bag; 4. pulse component; 5. blower; 6. cleaning structure; 7. transmission structure; 8. frame; 9. sleeve; 10. wiping ring; 11. bracket; 12. wheel disc; 13. sleeve plate; 14. slide rod; 15. linkage structure; 16. extension ring; 17. drive motor; 18. belt; 19. connecting block; 20. shaft; 21. knock rod; 22. swing structure; 23. connecting plate; 24. rotor; 25. force rod; 26. push rod; 27. tooth plate frame; 28. gear; 29. movable block; 30. screw assembly; 31. screw sleeve; 32. support plate; 33. spring plate; 34. ratchet; 35. extension rod; 36. pawl assembly; 37. crossbeam; 38. transmission rod; 39. bevel wheel; 40. sprocket; 41. chain belt. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0041] like Figures 1 to 8 As shown, the present invention provides a pulse dust removal device for powdered emulsion explosive production, comprising a body 1;

[0042] The interior of the body 1 is fixedly connected to a partition plate 2, the bottom of the partition plate 2 is connected to a filter bag 3, the interior of the body 1 is connected to a pulse component 4 located on the top of the partition plate 2, the pulse component 4 is composed of a steam drum fixedly connected to the outside of the body 1 and a pulse valve connected thereto, the pulse component 4 can generate high-pressure airflow and guide the airflow to the interior of the filter bag 3, the left side of the body 1 is connected to a blower 5, the blower 5 is used to inject the airflow with dust into the interior of the body 1, the interior of the body 1 is provided with a cleaning structure 6, the cleaning structure 6 can wipe the surface of the filter bag 3, the interior of the body 1 is provided with a transmission structure 7, the transmission structure 7 can control the movement of the cleaning structure 6 and expand the cleaning area.

[0043] refer to Figure 6The cleaning structure 6 includes a rectangular frame 8 made of lightweight and high-strength material, which is fixed to the inner wall of the body 1 by a guide rail or a slide groove to ensure vertical lifting stability. A plurality of annular sleeves 9 are welded and fixed inside the frame 8, and the number corresponds to the filter bag 3. The inner diameter of the sleeve 9 is slightly larger than the outer diameter of the filter bag 3, and a gap of 1 to 3 mm is reserved to facilitate quick opening and closing during installation and maintenance. The wiping ring 10 is fixed to the inner wall of the sleeve 9 and adopts an elastic wear-resistant material or a composite fiber woven layer. The inner surface is designed with a wavy or spiral raised texture to increase the contact area and friction with the filter bag 3. The transmission structure 7 can drive the frame 8 to rise and fall vertically. The wiping ring 10 clings to the surface of the filter bag 3 through elastic deformation to scrape off the dust that is not completely stripped off by the pulse airflow.

[0044] As a technical optimization solution of the present invention, the sleeve 9 and the wiping ring 10 are tightly fitted to the surface of the filter bag 3, and the attached dust is directly removed by friction during vertical lifting, reducing the residual dust layer. The integrated design ensures uniform contact between the wiping ring 10 and the filter bag 3, avoiding local excessive pressure causing damage to the filter bag. At the same time, the sleeve 9 can be adapted to filter bags 3 of different diameters, which is convenient for modular expansion of the equipment.

[0045] refer to Figure 6 The transmission structure 7 includes a bracket 11 fixedly connected to the inside of the body 1, and a wheel disc 12 is movably connected to the surface of the bracket 11 through a bearing. A sleeve plate 13 is fixedly connected to the side of the frame 8 close to the wheel disc 12. The surface of the wheel disc 12 is fixedly connected to a slide rod 14 located inside the sleeve plate 13. The slide rod 14 is slidably connected to the sleeve plate 13. A linkage structure 15 is provided on the surface of the wheel disc 12. The linkage structure 15 can utilize the power of the blower 5 and drive the wheel disc 12 to rotate continuously.

[0046] As a technical optimization solution of the present invention, the rotary motion is converted into vertical reciprocating motion through the wheel disc 12, slide rod 14 and sleeve plate 13 mechanism, with high transmission efficiency and low wear. The original power of the blower 5 is used to drive the cleaning structure 6, without the need for an additional motor, thereby reducing energy consumption and equipment complexity. At the same time, the speed of the wheel disc 12 is adjustable, which indirectly controls the wiping frequency to adapt to different dust load conditions.

[0047] refer to Figure 6 The linkage structure 15 includes an extension ring 16 fixedly connected to the surface of the wheel disc 12. A drive motor 17 is installed on the front of the blower 5. The drive motor 17 can drive the blower 5 to operate continuously. The surface of the drive motor 17 is connected to a belt 18. The end of the belt 18 away from the drive motor 17 passes through the body 1 and is sleeved on the surface of the extension ring 16. When the drive motor 17 is running, it can drive the belt 18 to rotate and use the belt 18 to transmit torque to the extension ring 16.

[0048] As a technical optimization solution of the present invention, the power of the drive motor 17 of the blower 5 is transmitted to the extension ring 16 through the belt 18, realizing "one machine with multiple uses" and saving energy and equipment costs. The belt 18 passing through the body 1 can be designed with a sealing structure to prevent dust leakage, which meets the explosion-proof requirements of explosives production. In addition, the belt 18 transmission structure 7 is easy to replace and adjust the tension, reducing the difficulty of operation and maintenance.

[0049] refer to Figure 8 , both sides of the top of the frame 8 are fixedly connected with connecting blocks 19, and the interior of the connecting block 19 is movably connected with a shaft rod 20, and the surface of the shaft rod 20 is fixedly connected with a knocking rod 21. The number of knocking rods 21 corresponds to the number of filter cartridge bags 3 and is located on both sides of the filter cartridge bag 3. The inner side of the knocking rod 21 can contact the surface of the filter cartridge bag 3, and both ends of the shaft rod 20 are provided with a swing structure 22. The swing structure 22 can control the rotation of the shaft rod 20 and drive the knocking rod 21 to intermittently knock the filter cartridge bag 3.

[0050] As a technical optimization solution of the present invention, the intermittent knocking of the knocking rod 21 complements the mechanical cleaning of the wiping ring 10, especially for the stubborn dust compacted on the surface of the filter bag. The number of knocking rods 21 corresponds one-to-one with the filter element bag 3, ensuring that each filter bag is evenly stressed to avoid local blockage. At the same time, the knocking action is only triggered when the frame 8 is raised or lowered, without additional energy consumption.

[0051] refer to Figure 5 The swing structure 22 includes a connecting plate 23 fixedly connected to both sides of the frame 8, and both ends of the inner side of the connecting plate 23 are movably connected to the rotating wheel 24 through bearings. Both ends of the shaft 20 are fixedly connected to the force-bearing rod 25 located inside the rotating wheel 24, and the force-bearing rod 25 is set to a hollow shape. The inner side of the rotating wheel 24 is fixedly connected to the push rod 26 located inside the force-bearing rod 25, and the push rod 26 and the force-bearing rod 25 are slidably connected.

[0052] As a technical optimization solution of the present invention, the lifting of the frame 8 is converted into the rotation of the shaft 20 through the sliding connection of the rotating wheel 24, the push rod 26 and the force rod 25. The action is reliable and without delay. The hollow force rod 25 design allows the push rod 26 to adapt to the position deviation when sliding to avoid jamming. The swing structure 22 is integrated on both sides of the frame 8, saving space and suitable for installation inside small equipment.

[0053] refer to Figure 5 , both sides of the bottom of the dividing plate 2 are fixedly connected with a toothed plate frame 27, the toothed plate frame 27 is located on both sides of the frame 8, the outer side of the rotating wheel 24 passes through the outer side of the connecting plate 23 and is installed with a gear 28, the gear 28 is located on both sides of the toothed plate frame 27, the teeth on the surface of the gear 28 are engaged with the teeth on both sides of the toothed plate frame 27, and the gear 28 can be squeezed by the toothed plate frame 27 and rotate continuously when following the vertical rise and fall of the frame 8.

[0054] As a technical optimization solution of the present invention, the engagement of the gear 28 and the tooth plate frame 27 when the frame 8 is raised or lowered forces the wheel 24 to rotate, ensuring that the knocking frequency is strictly synchronized with the cleaning action. The tooth design on both sides of the tooth plate frame 27 allows the gear 28 to be subjected to bidirectional force during the lifting process, avoiding unidirectional wear. The movement of the gear 28 can scrape off the dust on the surface of the tooth plate frame 27 to prevent dust accumulation from affecting the transmission accuracy.

[0055] refer to Figure 8 The outer side of the knocking rod 21 is fixedly connected to a movable block 29, and the surface of the movable block 29 is movably connected to a screw assembly 30 through a bearing. The screw assembly 30 is composed of two reciprocating screws. Both sides of the screw assembly 30 are threadedly connected with a screw sleeve 31. The outer side of the movable block 29 is fixedly connected to a support plate 32 sleeved on the surface of the screw assembly 30, and the inner side of the screw sleeve 31 is fixedly connected to a spring plate 33. The side of the spring plate 33 away from the screw sleeve 31 contacts the surface of the filter element bag 3, and the spring plate 33 is elastic.

[0056] As a technical optimization solution of the present invention, the screw sleeve 31 is driven to move by the screw assembly 30, so that the spring plate 33 elastically presses the surface of the filter element bag 3, and automatically adjusts the pressure according to the deformation of the filter bag to avoid excessive extrusion. The two reciprocating screws are spliced to achieve bidirectional expansion of the spring plate 33 to cover a larger area of the filter bag.

[0057] refer to Figure 8 The surface of the screw assembly 30 is fixedly connected to a ratchet 34 located on the inner side of the movable block 29, and an extension rod 35 is fixedly connected to the outer side of the frame 8. A pawl assembly 36 is installed on the side of the extension rod 35 away from the frame 8. The pawl assembly 36 extends to the outer side of the ratchet 34 away from the side of the extension rod 35 and engages with the ratchet 34. When the knocking rod 21 carries the ratchet 34 to swing, it can contact the pawl assembly 36 and generate a rotational force.

[0058] As a technical optimization solution of the present invention, the ratchet 34 and the pawl assembly 36 are used to limit the unidirectional rotation of the screw assembly 30 to prevent the spring plate 33 from rebounding and loosening, thereby maintaining continuous clamping force. When the knocking rod 21 swings, the rotational force is transmitted to the screw assembly 30 through the ratchet 34, thereby realizing multi-level utilization of mechanical energy and achieving the effect of driving the screw assembly 30 to rotate continuously.

[0059] refer to Figure 7The top of the filter bag 3 is movably connected to the bottom of the dividing plate 2 through a bearing, and the filter bag 3 can rotate through the bearing. The front of the bracket 11 is fixedly connected to a crossbeam 37, and the interior of the crossbeam 37 is movably connected to a transmission rod 38. The top of the transmission rod 38 and the surface of the wheel disc 12 are both installed with an inclined cone wheel 39, and the inclined cone wheels 39 are meshed with each other. The bottom end of the transmission rod 38 and the bottom of the filter bag 3 are fixedly connected with a sprocket 40, and the surface of the sprocket 40 is provided with a chain belt 41. The sprocket 40 at the bottom end of the transmission rod 38 can carry the filter bag 3 to rotate through the chain belt 41.

[0060] As a technical optimization solution of the present invention, the filter bag 3 is slowly rotated to evenly distribute the cleaning effects of the wiping ring 10, the knocking rod 21 and the spring plate 33, eliminating the cleaning dead corners of the static filter bag. The inclined cone wheel 39 and the chain belt 41 transmit the power of the wheel disc 12 to the filter bag 3, without the need for a separate rotating motor.

[0061] The working principle and use process of the present invention are as follows: the air flow containing powdered emulsion explosive dust enters from the left side of the body 1, is filtered by the filter bag 3 under the partition plate 2, and the dust is trapped on the outer surface of the filter bag 3. The purified gas is discharged through the top of the partition plate 2. When the surface pressure difference of the filter bag 3 reaches the set threshold, the pulse component 4 releases high-pressure air flow, and the air flow enters the interior of the filter bag 3 from top to bottom, causing the filter bag to expand instantly and the surface dust to fall off. During the operation of the blower 5, the drive motor of the blower 5 17 drives the extension ring 16 to rotate through the belt 18. The extension ring 16 is fixedly connected to the wheel 12. When the wheel 12 rotates, the slide bar 14 on its surface slides in the sleeve 13, converting the rotational motion into the vertical reciprocating motion of the frame 8. The frame 8 drives the sleeve 9 and the wiping ring 10 to move up and down along the surface of the filter bag 3, mechanically wiping and removing the dust that has not completely fallen off. When the frame 8 rises and falls, the gear 28 on the outside of the runner 24 engages with the teeth of the toothed plate frame 27, forcing the runner 24 to rotate. The runner 2 The push rod 26 on the inside slides in the hollow groove of the force-bearing rod 25, pushing the shaft 20 to rotate, driving the knocking rod 21 to periodically knock on the surface of the filter bag 3, further shaking off the adhered dust. When the knocking rod 21 swings, the ratchet 34 rotates with the screw assembly 30, and the pawl assembly 36 engages with the ratchet 34, limiting the unidirectional rotation of the screw assembly 30. The rotation of the screw assembly 30 drives the screw sleeve 31 to move along the thread, driving the spring plate 33 to cling to the surface of the filter bag 3. The elastic pressure can be automatically adjusted according to the deformation of the filter bag. , to avoid damage caused by excessive extrusion. At the same time, the spring plate 33 can adjust the knocking position after changing the spacing, further improving the knocking effect. When the wheel 12 rotates, the transmission rod 38 is driven to rotate through the engagement of the inclined cone wheel 39, and the sprocket 40 at the bottom end of the transmission rod 38 drives the filter element bag 3 to rotate slowly around its axis through the chain belt 41. When the filter element bag 3 rotates, the cleaning effect of the wiping ring 10, the knocking rod 21 and the spring plate 33 evenly covers the entire circumferential surface, avoiding local dust accumulation and further improving the cleaning effect.

[0062] To sum up: the pulse dust removal device for the production of powdered emulsion explosives solves the problem of clogging at the bottom of the filter bag 3 during traditional single pulse cleaning through the synergistic effect of the pulse component 4 and the cleaning structure 6. It is particularly suitable for long filter bag scenarios. At the same time, the transmission structure 7 drives the cleaning structure 6 to move, covering a larger area of the surface of the filter bag 3, reducing the blind area of cleaning, and improving the dust stripping efficiency. In addition, mechanical wiping can effectively remove sticky dust such as ammonium nitrate particles in explosive raw materials, avoiding secondary dust caused by relying solely on airflow.

[0063] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0064] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A pulse dust removal device for producing powdered emulsion explosives, comprising a body (1); Its characteristics are: The interior of the machine body (1) is fixedly connected to a partition plate (2), the bottom of the partition plate (2) is connected to a filter bag (3), the interior of the machine body (1) is connected to a pulse component (4) located on the top of the partition plate (2), the pulse component (4) is capable of generating a high-pressure airflow and guiding the airflow to the interior of the filter bag (3), the left side of the machine body (1) is connected to a blower (5), the blower (5) is used to inject the airflow with dust into the interior of the machine body (1), the interior of the machine body (1) is provided with a cleaning structure (6), the cleaning structure (6) is capable of wiping the surface of the filter bag (3), the machine body (1) ) is provided with a transmission structure (7) inside, and the transmission structure (7) can control the movement of the cleaning structure (6) and expand the cleaning area; the cleaning structure (6) includes a frame (8) provided inside the machine body (1), and both sides of the top of the frame (8) are fixedly connected with connecting blocks (19), and the interior of the connecting block (19) is movably connected with a shaft (20), and the surface of the shaft (20) is fixedly connected with a knocking rod (21), and the number of the knocking rods (21) corresponds to the number of the filter bag (3) and is located on both sides of the filter bag (3), and both ends of the shaft (20) are provided with a swinging structure (22). The swing structure (22) can control the shaft (20) to rotate and drive the knocking rod (21) to intermittently knock the filter bag (3). The outer side of the knocking rod (21) is fixedly connected to a movable block (29). The surface of the movable block (29) is movably connected to a screw assembly (30) through a bearing. The screw assembly (30) is composed of two reciprocating screws. Both sides of the screw assembly (30) are threadedly connected to a screw sleeve (31). The outer side of the movable block (29) is fixedly connected to a support plate (32) sleeved on the surface of the screw assembly (30). The inner side of the screw sleeve (31) is fixedly connected to a spring plate (33). The side of the spring plate (33) away from the screw sleeve (31) contacts the surface of the filter element bag (3); the surface of the screw assembly (30) is fixedly connected to a ratchet (34) located inside the movable block (29); the outside of the frame (8) is fixedly connected to an extension rod (35); the side of the extension rod (35) away from the frame (8) is installed with a pawl assembly (36); the side of the pawl assembly (36) away from the extension rod (35) extends to the outside of the ratchet (34) and engages with the ratchet (34); the knocking rod (21) can contact the pawl assembly (36) and generate a rotational force when carrying the ratchet (34) to swing.

2. The pulse dust removal device for powdered emulsion explosive production according to claim 1, characterized in that: The frame (8) is fixedly connected to a sleeve (9) sleeved on the surface of the filter bag (3) inside, and a wiping ring (10) is fixedly connected to the inner surface of the sleeve (9). The inner wall of the wiping ring (10) contacts the surface of the filter bag (3). The transmission structure (7) can control the vertical lifting of the frame (8) and wipe the surface of the filter bag (3) using the wiping ring (10).

3. The pulse dust removal device for powdered emulsion explosive production according to claim 2, characterized in that: The transmission structure (7) includes a bracket (11) fixedly connected to the inside of the body (1), the surface of the bracket (11) is movably connected to a wheel disc (12) via a bearing, the side of the frame (8) close to the wheel disc (12) is fixedly connected to a sleeve plate (13), the surface of the wheel disc (12) is fixedly connected to a slide rod (14) located inside the sleeve plate (13), the slide rod (14) is slidably connected to the sleeve plate (13), and the surface of the wheel disc (12) is provided with a linkage structure (15), which can utilize the power of the blower (5) and drive the wheel disc (12) to rotate continuously.

4. The pulse dust removal device for powdered emulsion explosive production according to claim 3, characterized in that: The linkage structure (15) includes an extension ring (16) fixedly connected to the surface of the wheel disc (12). A drive motor (17) is installed on the front of the blower (5). The drive motor (17) can drive the blower (5) to operate continuously. The surface of the drive motor (17) is connected to a belt (18). The end of the belt (18) away from the drive motor (17) passes through the body (1) and is sleeved on the surface of the extension ring (16). When the drive motor (17) is in operation, it can drive the belt (18) to rotate and use the belt (18) to transmit torque to the extension ring (16).

5. The pulse dust removal device for powdered emulsion explosive production according to claim 4, characterized in that: The inner side of the knocking rod (21) can contact the surface of the filter bag (3).

6. The pulse dust removal device for powdered emulsion explosive production according to claim 5, characterized in that: The swing structure (22) includes a connecting plate (23) fixedly connected to both sides of the frame (8), both ends of the inner side of the connecting plate (23) are movably connected to a rotating wheel (24) through bearings, both ends of the shaft (20) are fixedly connected to a force-bearing rod (25) located inside the rotating wheel (24), the force-bearing rod (25) is configured to be hollow, and the inner side of the rotating wheel (24) is fixedly connected to a push rod (26) located inside the force-bearing rod (25), and the push rod (26) and the force-bearing rod (25) are slidably connected.

7. The pulse dust removal device for powdered emulsion explosive production according to claim 6, characterized in that: Both sides of the bottom of the dividing plate (2) are fixedly connected with toothed plate frames (27), and the toothed plate frames (27) are located on both sides of the frame (8). The outer side of the rotating wheel (24) passes through the outer side of the connecting plate (23) and is installed with a gear (28), and the gear (28) is located on both sides of the toothed plate frame (27). The teeth on the surface of the gear (28) are meshed with the teeth on both sides of the toothed plate frame (27). When the gear (28) follows the frame (8) to rise and fall vertically, it can be squeezed by the toothed plate frame (27) and continuously rotated.

8. The pulse dust removal device for powdered emulsion explosive production according to claim 7, characterized in that: The spring plate (33) is elastic.

9. The pulse dust removal device for powdered emulsion explosive production according to claim 8, characterized in that: The top of the filter bag (3) is movably connected to the bottom of the partition plate (2) via a bearing, and the filter bag (3) can rotate via the bearing. The front of the bracket (11) is fixedly connected to a crossbeam (37), and the interior of the crossbeam (37) is movably connected to a transmission rod (38). The top of the transmission rod (38) and the surface of the wheel disc (12) are both installed with an inclined cone wheel (39), and the inclined cone wheels (39) are engaged with each other. The bottom end of the transmission rod (38) and the bottom of the filter bag (3) are both fixedly connected to a sprocket (40), and the surface of the sprocket (40) is provided with a chain belt (41). The sprocket (40) at the bottom end of the transmission rod (38) can carry the filter bag (3) to rotate via the chain belt (41).

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