A pulse dust collector for the production of powdered emulsion explosives

Abstract

This invention relates to the field of powdered emulsion explosives production technology, and discloses a pulse dust removal device for powdered emulsion explosives production, including a top box and a bottom box, both of which are hollow box structures. The top box has a cover, and an air inlet pipe is connected to the top of the cover, which is connected to an external blower. The top box contains equidistantly arranged dust collector bags, and also includes a beating component positioned between adjacent dust collector bags. The beating component includes a rotating shaft with equidistantly arranged curved plates on the shaft. A rubber membrane is placed between the top and bottom boxes. The top box also contains a vertically movable plate, and the movable plate contains brush bristles matching the dust collector bags. This invention, by setting up the beating component, ensures moderate beating force, uniform beating effect, and reduces the risk of localized friction damage to the dust collector bags.

Description

Technical Field

[0001] This invention relates to the field of powdered emulsion explosives production technology, specifically to a pulse dust removal device for the production of powdered emulsion explosives. Background Technology

[0002] Powdered emulsion explosives are a type of industrial mixed explosive widely used in mining, engineering blasting, and other fields. Their safety, stability, and water resistance are superior to traditional explosives. However, processing dust must be treated during manufacturing to reduce environmental pollution from waste gases.

[0003] Publication number "CN120268135B" discloses a pulse dust collector for the production of powdered emulsion explosives, comprising a body, a partition plate fixedly connected inside the body, a filter bag connected to the bottom of the partition plate, and a pulse component located at the top of the partition plate connected inside the body. The pulse component generates a high-pressure airflow and guides the airflow into the filter bag. A blower is connected to the left side of the body, which injects the dust-laden airflow into the body. This device solves the problem of filter bag bottom clogging during traditional single-pulse dust removal through the synergistic action of the pulse component and the cleaning structure, making it particularly suitable for long filter bag scenarios. Simultaneously, the transmission structure drives the cleaning structure to move, covering a larger area of ​​the filter bag surface, reducing blind spots, and improving dust removal efficiency. Furthermore, mechanical wiping effectively removes sticky dust, avoiding secondary dust generation caused by relying solely on airflow.

[0004] However, the existing technology and the above-mentioned technology still have the following drawbacks: 1. The impact of high-pressure airflow causes the filter bag to expand and contract instantly, and the fibers will break due to fatigue under repeated stress; if the filter bag support frame is poorly designed, local friction damage may also occur. 2. During high-pressure pulse jet cleaning, the compressed air released instantaneously will re-raise the dust that has been peeled off from the surface of the filter bag, forming a "dust cloud". Some fine dust particles (such as PM2.5) will re-adhere to the surface of adjacent filter bags due to electrostatic adsorption or inertia, reducing the cleaning efficiency. Summary of the Invention

[0005] This invention provides a pulse dust removal device for the production of powdered emulsion explosives, which solves the problems mentioned in the background art. Existing mechanisms are mostly designed for specific specifications of fruit bags, making it difficult to adapt to fruit bags of different materials (paper bags, mesh bags) and sizes. When changing the type of fruit bag, the mechanism needs to be readjusted, which is cumbersome. Using a single adsorption or clamping method, fruit bags are prone to falling off or tilting, especially at high speeds, making it difficult to guarantee the success rate of grasping. The fruit bags are also prone to deviation during transport, affecting the accuracy of subsequent grasping actions.

[0006] This invention provides the following technical solution: a pulse dust removal device for the production of powdered emulsion explosives, comprising a top box and a bottom box, both of which are hollow box structures. The top of the top box is provided with a box cover, and the top of the box cover is connected to an air inlet pipe, which is connected to an external blower. The top box is provided with equidistant arrays of dust removal bags, and also includes a beating assembly disposed between adjacent dust removal bags. The beating assembly includes a rotating shaft with equidistant arrays of curved plates on the rotating shaft. A rubber membrane is installed between the top box and the bottom box; The top box is also equipped with a movable plate that moves up and down, and the movable plate is equipped with brush bristles that match the dust collector bag.

[0007] As an optional embodiment of the pulse dust removal device for the production of powdered emulsion explosives described in this invention, one end of the rotating shaft extends to the outside of the top box, and a synchronous pulley is installed at the end of the rotating shaft located outside the top box. Adjacent synchronous pulleys are connected by a conveyor belt drive, and one set of the rotating shafts is connected to an external motor drive.

[0008] As an optional embodiment of the pulse dust removal device for the production of powdered emulsion explosives according to the present invention, the curved plate includes three sets of arc-shaped plates, which are arranged in a ring at equal intervals on the surface of the rotating shaft. The arc-shaped plates are attached to the outer side of the dust collector bags, and the spacing between two adjacent sets of curved plates is the same as the spacing between two adjacent sets of dust collector bags.

[0009] As an optional embodiment of the pulse dust removal device for the production of powdered emulsion explosives described in this invention, wherein: a fixing plate is detachably connected to the connection position of the top box and the bottom box, a central hole is provided in the center of the fixing plate, the outer edge of the rubber membrane is fixedly connected to the inner ring of the central hole, and a connecting block is fixedly connected in the center of the rubber membrane.

[0010] As an optional embodiment of the pulse dust removal device for the production of powdered emulsion explosives according to the present invention, wherein: a connecting rod is connected to the connecting block, a guide rod is slidably connected to the top of the connecting rod, a flap is connected to the top of the guide rod, a spring is connected between the flap and the connecting rod, the spring sleeve is disposed outside the guide rod, a roller is rotatably installed inside the flap, and the rubber diaphragm is stretched under the traction of the connecting rod.

[0011] As an optional embodiment of the pulse dust removal device for the production of powdered emulsion explosives described in this invention, a set of rotating shafts located in the center of the top box is connected to a bushing, a lever is connected to one side of the bushing, the lever is located below the roller, and an inclined surface is formed on one side of the lever below the roller.

[0012] As an optional embodiment of the pulse dust removal device for the production of powdered emulsion explosives described in this invention, wherein: an air nozzle is connected to the fixed plate, a one-way valve is provided inside the air nozzle, and the air pressure difference generated by the traction of the rubber diaphragm causes the airflow in the bottom box to be sprayed into the top box.

[0013] As an optional embodiment of the pulse dust removal device for the production of powdered emulsion explosives described in this invention, the top box has two sets of guide bars symmetrically installed on its outer wall. The guide bars have grooves, and racks are slidably installed in the grooves. A gear is installed at one end of the rotating shaft outside the top box, and the gear and rack are meshed.

[0014] As an optional embodiment of the pulse dust removal device for the production of powdered emulsion explosives described in this invention, wherein: a fixed rod is connected to one side of the rack, a guide groove is provided on the side wall of the top box, the fixed rod is slidably installed in the guide groove, and limit switches are provided at both ends of the guide groove, and the limit switches are electrically connected to an external motor.

[0015] As an optional embodiment of the pulse dust removal device for the production of powdered emulsion explosives according to the present invention, wherein: one side of the moving plate is fixedly connected to the fixed rod, the other side of the moving plate is slidably connected to the inner wall of the top box, through holes are equidistantly opened in the moving plate, the brush bristles are arranged in a ring at equal intervals in the through holes, the through holes and the center of the dust collector bag are collinear, the inner diameter of the through holes is 5-7 mm larger than the outer diameter of the dust collector bag, and the length of the brush bristles is 9-11 mm.

[0016] The present invention has the following beneficial effects: 1. This pulse dust collector for the production of powdered emulsion explosives, by incorporating a beating component, provides moderate beating force, causing the dust collector bags to vibrate to a certain amplitude, shaking off some of the dust adhering to their surface. This avoids the problem of filter bag fiber fatigue and breakage that may be caused by the impact of traditional high-pressure airflow. The arc-shaped plate design allows for better fit with the curved surface of the dust collector bag, ensuring uniform beating effect and reducing the risk of localized friction damage. 2. This pulse dust collector for the production of powdered emulsion explosives features a synchronously rotating shaft that ensures the consistency of the actions of each beating component. This allows all dust collector bags to be evenly beaten, preventing incomplete cleaning of some bags from affecting the overall dust removal efficiency. The external motor provides a stable power source for the entire beating assembly, and its speed and direction can be adjusted according to actual dust removal needs to adapt to different dust adhesion levels. 3. The pulse dust removal device for the production of powdered emulsion explosives is equipped with an airbag. The rotation of the drive screw causes the inner threaded sleeve to move the moving plate, thereby realizing the expansion or contraction of the airbag. This not only discharges the dust stripped from the cleaning components from the first lens barrel, but also replaces the gas inside and outside the first lens barrel, preventing the fogging that may form when the seal is damaged, and ensuring the normal use of the lens. 4. This pulse dust collector for the production of powdered emulsion explosives, by setting a rubber membrane, can effectively relieve the airflow pressure on the dust collector bag by moving the rubber membrane upward, and avoid the dust collector bag from being over-expanded due to slapping and vibration, which would affect its service life. The stretching and resetting of the rubber membrane forms a breathing-like action, which helps to enhance the airflow disturbance in the top and bottom boxes, and further assists the dust to fall off and settle.

[0017] 5. This pulse dust collector for the production of powdered emulsion explosives, when the rubber diaphragm contracts under the spring's return and its own elasticity, the space in the bottom chamber rapidly decreases, the internal air pressure rises sharply, the one-way valve closes, and the compressed air in the bottom chamber is pulsed upwards into the top chamber through the channel corresponding to the dust collector bag, directly impacting the interior of the dust collector bag. This powerful pulse airflow causes the dust collector bag to expand and vibrate rapidly from the inside out, thoroughly shaking off the dust adhering to its outer surface, which falls into the dust collection area below, effectively improving the dust removal effect and ensuring that the dust collector bag always maintains good air permeability.

[0018] 6. This pulse dust collector for the production of powdered emulsion explosives, by setting up a moving plate and brushes inside the moving plate, uses the rotation of the rotating shaft to drive the moving plate to move. The up and down movement of the moving plate, the beating action of the beating component, and the "breathing" action of the rubber membrane work together to form a synergistic dust removal mechanism: the beating loosens the dust, the brushes brush off the stubborn dust, and the pulse airflow blows away the shaken dust and makes it settle. The three work together to significantly improve the dust removal efficiency and cleanliness, and ensure the long-term stable operation of the dust collector bag. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 For the present invention Figure 1 Enlarged schematic diagram of the structure at point A in the middle.

[0021] Figure 3 For the present invention Figure 1 Enlarged schematic diagram of the structure at point B.

[0022] Figure 4 This is a schematic diagram of a partial cross-sectional view of the main view structure of the present invention.

[0023] Figure 5This is a schematic diagram of the partial cross-sectional structure from the side view of the present invention.

[0024] Figure 6 For the present invention Figure 5 Enlarged schematic diagram of the structure at point C.

[0025] Figure 7 This is a schematic cross-sectional view of the rubber membrane structure of the present invention.

[0026] Figure 8 For the present invention Figure 5 Enlarged schematic diagram of the structure at point D.

[0027] Figure 9 For the present invention Figure 8 Enlarged schematic diagram of the structure at point E in the middle.

[0028] Figure 10 This is a schematic diagram of the movable plate moving structure of the present invention.

[0029] Figure 11 For the present invention Figure 10 Enlarged schematic diagram of the structure at point F.

[0030] In the diagram: 1. Top box; 2. Bottom box; 3. Box cover; 4. Air inlet pipe; 5. Rotating shaft; 6. Bend plate; 7. Synchronous pulley; 8. Conveyor belt; 9. Gear; 10. Guide bar; 11. Rack; 12. Fixing plate; 13. Air nozzle; 14. Rubber diaphragm; 15. Connecting block; 16. Bushing; 17. Pulley; 18. Flip plate; 19. Spring; 20. Guide rod; 21. Connecting rod; 22. Roller; 23. Moving plate; 24. Through hole; 25. Brush bristles; 26. Fixing rod; 27. Dust collector bag. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Example 1, please refer to Figures 1 to 11 The present invention discloses a pulse dust removal device for the production of powdered emulsion explosives, including a top box 1 and a bottom box 2. Both the top box 1 and the bottom box 2 are hollow box structures. The top of the top box 1 is provided with a box cover 3. The top of the box cover 3 is connected to an air inlet pipe 4, which is connected to an external blower. The top box 1 is provided with dust removal bags 27 arranged in an equidistant array.

[0033] In this embodiment, during operation, an external blower delivers airflow containing powdered emulsion explosive production dust into the top chamber 1 through the air inlet pipe 4. The airflow passes through the dust collector bags 27, where dust is trapped on the outer surface of the dust collector bags 27. The purified gas then passes through the inside of the dust collector bags 27 and is finally discharged from the corresponding outlet of the top chamber 1. As the operating time increases, the dust adhering to the outer surface of the dust collector bags 27 gradually increases, which affects the dust removal efficiency. At this point, it is necessary to start the dust removal procedure.

[0034] Example 2 is an explanation based on Example 1. For details, please refer to [link / reference]. Figures 1 to 11 It also includes a beating assembly disposed between adjacent dust collector bags 27. The beating assembly includes a rotating shaft 5 and equidistantly arranged curved plates 6 on the rotating shaft 5. The curved plates 6 include three sets of arc-shaped plates, which are arranged in a ring at equal intervals on the surface of the rotating shaft 5. The arc-shaped plates are attached to the outer side of the dust collector bags 27. The distance between two adjacent sets of curved plates 6 is the same as the distance between two adjacent sets of dust collector bags 27.

[0035] In this embodiment, when the dust removal process is started, a set of rotating shafts 5 connected to an external motor begin to rotate. Through the transmission action of the synchronous pulley 7 and the conveyor belt 8, all rotating shafts 5 rotate synchronously. As the rotating shafts 5 rotate, the annular array of curved plates 6 on their surfaces rotates accordingly. Since the curved plates 6 are fitted against the outer side of the dust collector bag 27, and the spacing between adjacent curved plates 6 is the same as the spacing between adjacent dust collector bags 27, the curved plates periodically tap the outer surface of the dust collector bag 27 during rotation. This tapping force is moderate, causing the dust collector bag 27 to vibrate to a certain extent, shaking off some of the dust adhering to its surface, thus avoiding the filter bag fiber fatigue breakage problem that may be caused by the impact of traditional high-pressure airflow. The design of the curved plates allows for better fit with the curved surface of the dust collector bag 27, ensuring uniform tapping effect and reducing the risk of localized friction damage.

[0036] One end of the rotating shaft 5 extends to the outside of the top box 1. A synchronous pulley 7 is installed at the end of the rotating shaft 5 located outside the top box 1. Adjacent synchronous pulleys 7 are connected by a transmission belt 8. One set of rotating shafts 5 is connected to an external motor.

[0037] In this embodiment, an external motor is started, driving the rotating shaft 5 to rotate, which in turn drives the synchronous pulley 7 on the surface of the rotating shaft 5 to rotate. The synchronous pulley 7 transmits power to the adjacent synchronous pulley 7 through the conveyor belt 8, thereby achieving synchronous rotation of all rotating shafts 5. This ensures the consistency of the actions of each beating component, allowing all dust collector bags 27 to be evenly beaten, avoiding the impact on overall dust removal efficiency due to incomplete cleaning of some dust collector bags 27. The external motor provides a stable power source for the entire beating component, and its speed and direction can be adjusted according to actual dust removal needs to adapt to dust removal work under different dust adhesion levels.

[0038] Example 3 is an explanation based on Example 1. For details, please refer to [link / reference]. Figures 1 to 11 It also includes a rubber membrane 14 between the top box 1 and the bottom box 2. A fixing plate 12 is detachably connected to the connection position between the top box 1 and the bottom box 2. A central hole is opened in the center of the fixing plate 12. The outer edge of the rubber membrane 14 is fixedly connected to the inner circle of the central hole. A connecting block 15 is fixedly connected in the center of the rubber membrane 14. A connecting rod 21 is connected to the connecting block 15. A guide rod 20 is slidably connected to the top of the connecting rod 21. A flap 18 is connected to the top of the guide rod 20. A spring 19 is connected between the flap 18 and the connecting rod 21. The spring 19 is sleeved on the outside of the guide rod 20. A roller 22 is rotatably installed in the flap 18. The rubber membrane 14 is stretched under the traction of the connecting rod 21.

[0039] In this embodiment, during the rotation of the rotating shaft 5, the bushing 16 on a set of rotating shafts 5 located in the center of the top box 1 drives the dial plate 17 to rotate synchronously. When the dial plate 17 rotates to the point where its inclined surface contacts the roller 22, the inclined surface will generate an upward thrust on the roller 22 as the dial plate 17 continues to rotate. After the roller 22 is subjected to force, it drives the flip plate 18 to move upward. The flip plate 18 stretches the spring 19 through the guide rod 20, and at the same time, the guide rod 20 slides upward in the connecting rod 21. During this process, the connecting rod 21 moves upward under the drive of the flip plate 18, thereby pulling the connecting block 15 to move upward, so that the rubber membrane 14 is stretched upward. The outer edge of the rubber membrane 14 is fixed to the inner ring of the center hole of the fixing plate 12, so when it is stretched upward, it will change the spatial volume between the top box 1 and the bottom box 2. At the same time, the upward movement of the rubber membrane 14 can effectively relieve the airflow pressure on the dust collector bag 27 and avoid excessive expansion of the dust collector bag 27 due to beating and vibration, which would affect its service life. When the inclined plane of the lever 17 rotates past the roller 22, the spring 19 returns to its original position under the action of its own elastic restoring force, pulling the flip plate 18 and the roller 22 to move downward. The connecting rod 21 then drives the connecting block 15 to move downward, and the rubber diaphragm 14 also returns to its original state. During this process, the stretching and resetting of the rubber diaphragm 14 forms a "breathing" action, which helps to enhance the airflow disturbance in the top box 1 and the bottom box 2, and further assists in the shedding and settling of dust.

[0040] A set of rotating shafts 5 located in the center of the top box 1 is connected to a bushing 16. A lever 17 is connected to one side of the bushing 16. The lever 17 is located below the roller 22. An inclined surface is opened on one side of the lever 17 located below the roller 22.

[0041] Specifically, when the centrally located rotating shaft 5 rotates under the drive of an external motor, the bushing 16 rotates synchronously with the rotating shaft 5, thereby driving the dial plate 17 to perform circular motion around the axis of the rotating shaft 5. The inclined surface on one side of the dial plate 17 is designed with a precisely calculated angle to ensure that it can smoothly contact the roller 22 and generate an upward lifting force during rotation. The inclination angle of this inclined surface is usually set between 30 and 45 degrees, which ensures that there is enough force to push the roller 22 upward while avoiding the impact caused by excessive angle, thereby reducing wear between components and extending the service life of the device. When the dial plate 17 is not in contact with the roller 22, the roller 22 is in its lowest position under the tension of the spring 19. At this time, the non-inclined part of the dial plate 17 maintains a certain gap with the bottom of the roller 22, ensuring that the dial plate 17 can rotate smoothly. When the dial plate 17 rotates to contact the inclined plane and roller 22, as the rotation continues, the contact point between the inclined plane and roller 22 gradually moves upward, and roller 22 is gradually lifted along the inclined plane. The roller 22 is mounted in a rotating manner, which transforms the sliding friction between the dial plate 17 and roller 22 into rolling friction, greatly reducing the friction between them, reducing energy loss, and also making the rotation of the dial plate 17 smoother, avoiding jamming.

[0042] Example 4 is an explanation based on Example 1. For details, please refer to [link / reference]. Figures 1 to 11 An air nozzle 13 is connected to the fixed plate 12. A one-way valve is installed inside the air nozzle 13. The air pressure difference generated by the traction of the rubber diaphragm 14 causes the airflow in the bottom box 2 to be sprayed into the top box 1.

[0043] Specifically, when the rubber diaphragm 14 is stretched, the space in the bottom chamber 2 below it increases, and the air pressure decreases. At this time, the one-way valve in the air nozzle 13 opens under the action of the air pressure difference, and external air is drawn into the bottom chamber 2 through the air nozzle 13 to balance the air pressure. When the rubber diaphragm 14 contracts under the action of the spring 19 returning to its original position and its own elasticity, the space in the bottom chamber 2 decreases rapidly, and the internal air pressure increases sharply. The one-way valve closes, and the compressed air in the bottom chamber 2 is then pulsed upwards through the channel corresponding to the dust collector bag 27 and injected into the top chamber 1, directly rushing into the interior of the dust collector bag 27. This strong pulsed airflow causes the dust collector bag 27 to expand and vibrate rapidly from the inside out, completely shaking off the dust attached to its outer surface, which falls into the dust collection area below, effectively improving the dust removal effect and ensuring that the dust collector bag 27 always maintains good air permeability.

[0044] Example 5 is an explanation based on Example 1. For details, please refer to [link / reference]. Figures 1 to 11The top box 1 is also equipped with a movable plate 23 that moves up and down. The movable plate 23 is equipped with brush bristles 25 that match the dust collector bag 27. A fixed rod 26 is connected to one side of the rack 11. One side of the movable plate 23 is fixedly connected to the fixed rod 26. The other side of the movable plate 23 is slidably connected to the inner wall of the top box 1. The movable plate 23 is provided with through holes 24 at equal intervals. The brush bristles 25 are arranged in a ring at equal intervals in the through holes 24. The through holes 24 and the dust collector bag 27 are arranged collinearly.

[0045] In this embodiment, during the rotation of the rotating shaft 5, a set of gears 9 installed at the end of one of the rotating shafts 5 rotate accordingly. The gears 9 mesh with the rack 11, driving the rack 11 to reciprocate up and down along the guide bar 10. The rack 11 is fixedly connected to the moving plate 23 via the fixing rod 26, so the up and down movement of the rack 11 synchronously drives the moving plate 23 to slide up and down within the top box 1. The through hole 24 on the moving plate 23 is collinear with the center of the dust collector bag 27. When the moving plate 23 moves up and down, the bristles 25 in the annular array within the through hole 24 will perform all-round brushing and cleaning of the outer surface of the dust collector bag 27. The bristles 25 are made of soft and wear-resistant nylon material, and their length is precisely designed to ensure that during the brushing process, they can effectively remove stubborn dust adhering to the surface of the dust collector bag 27 without damaging the filter fibers of the dust collector bag 27. The vertical movement of the movable plate 23 is matched with the length of the dust collector bag 27, ensuring that the bristles 25 can cover the entire outer surface of the dust collector bag 27 from top to bottom, avoiding cleaning dead corners. At the same time, the vertical movement of the movable plate 23, the beating action of the beating component, and the "breathing" action of the rubber diaphragm 14 work together to form a synergistic dust removal mechanism: beating loosens the dust, the bristles 25 brush off stubborn dust, and the pulse airflow blows away and settles the shaken-off dust. The three work together to significantly improve the dust removal efficiency and cleanliness, ensuring the long-term stable operation of the dust collector bag 27.

[0046] Two sets of guide bars 10 are symmetrically installed on the outer wall of the top box 1. The guide bars 10 have a sliding groove, and a rack 11 is slidably installed in the sliding groove. A gear 9 is installed at one end of the rotating shaft 5 outside the top box 1. The gear 9 and the rack 11 are meshed.

[0047] The inner diameter of the through hole 24 is 5-7 mm larger than the outer diameter of the dust collector bag 27, and the length of the bristles 25 is 9-11 mm.

[0048] Specifically, the inner diameter of the through hole 24 is 5-7 mm larger than the outer diameter of the dust collector bag 27. This size design provides sufficient space for the vibration of the dust collector bag 27 during the cleaning process, preventing excessive compression of the dust collector bag 27 by the bristles 25 when the moving plate 23 moves up and down, thus affecting its normal operation. It also ensures effective contact pressure between the bristles 25 and the outer surface of the dust collector bag 27, guaranteeing the brushing effect. The length of the bristles 25 is set at 9-11 mm, which was determined through multiple tests on the fluffiness of the filter material and the dust adhesion characteristics of the dust collector bag 27. This length of bristles 25 can penetrate into the fiber gaps on the outer surface of the dust collector bag 27, effectively removing sticky dust and deep-seated dust that are difficult to remove by beating and airflow alone. At the same time, the bristles 25 will not be excessively bent or flattened during brushing due to excessive length, ensuring the rigidity and long-lasting cleaning ability of the bristles 25. For example, when encountering stubborn dust clumps, the moderately long bristles 25 provide enough friction to break them up and brush them off without damaging the base fabric of the dust bag 27.

[0049] The top box 1 has a guide groove on its side wall, and the fixing rod 26 is slidably installed in the guide groove. Limit switches are provided at both ends of the guide groove, and the limit switches are electrically connected to the external motor.

[0050] In this embodiment, when the fixed rod 26 moves up and down with the rack 11, it slides within the guide groove on the side wall of the top box 1. The guide groove provides precise guidance and limits for the movement of the fixed rod 26, ensuring that the moving plate 23 can move up and down smoothly and vertically, avoiding any impact on the brushing effect of the bristles 25 on the dust collector bag 27 due to shaking. The limit switches at both ends of the guide groove form an effective stroke control mechanism with the external motor. When the fixed rod 26 moves upward to the top of the guide groove and touches the upper limit switch, the limit switch immediately sends a signal to the external motor, controlling the motor to change direction, causing the rack 11 to drive the moving plate 23 to start moving downward; conversely, when the fixed rod 26 moves downward to the bottom of the guide groove and touches the lower limit switch, the limit switch sends a signal to the motor again, the motor changes direction again, and the moving plate 23 moves upward. This automatic reversing control not only automates the up-and-down reciprocating motion of the moving plate 23 without manual intervention, but also precisely controls the travel of the moving plate 23 through limit switches, ensuring that its range of motion is perfectly matched with the length of the dust collector bag 27. This prevents inadequate cleaning of some areas due to insufficient travel, and also prevents collision damage between components due to excessive travel, further improving the stability and reliability of the device operation.

[0051] In summary, during the dust removal process of this application, a set of rotating shafts 5 connected to an external motor begins to rotate, and through the transmission action of the synchronous pulley 7 and the conveyor belt 8, drives all the rotating shafts 5 inside the top box 1 to rotate synchronously. The curved plates 6 on the rotating shafts 5 rotate with the shafts. Since the arc-shaped plates of the curved plates 6 are fitted against the outer side of the dust collector bags 27, and the distance between adjacent curved plates 6 is the same as the distance between adjacent dust collector bags 27, the rotating curved plates 6 will periodically beat the outer wall of the dust collector bags 27. This beating action can cause the dust collector bags 27 to vibrate, shaking off some of the dust attached to their surface.

[0052] Meanwhile, a gear 9 is installed at one end of the rotating shaft 5 outside the top box 1. The gear 9 meshes with a rack 11 that is slidably installed in the groove of the guide bar 10. When the rotating shaft 5 rotates, the gear 9 drives the rack 11 to slide back and forth in the groove of the guide bar 10. The fixed rod 26 connected to one side of the rack 11 slides in the guide groove on the side wall of the top box 1. The fixed rod 26 is fixedly connected to the moving plate 23, thereby driving the moving plate 23 to move up and down in the top box 1. The brush bristles 25 are arranged in a ring at equal intervals in the through hole 24. The through hole 24 is collinear with the center of the dust collector bag 27 and its inner diameter is slightly larger than the outer diameter of the dust collector bag 27. When the moving plate 23 moves up and down, the brush bristles 25 will thoroughly brush and clean the outer surface of the dust collector bag 27, further removing dust that could not be shaken off by beating, especially some sticky dust or firmly attached dust. The limit switches at both ends of the guide groove are used to control the travel of the rack 11. When the fixed rod 26 touches the limit switch, the limit switch sends a signal to the external motor to control the motor to reverse, thereby realizing the reciprocating motion of the moving plate 23.

[0053] During the rotation of the rotating shaft 5, the bushings 16 on one of the centrally located rotating shafts 5 drive the lever 17 to rotate synchronously. The inclined surface on one side of the lever 17 contacts the roller 22 at the bottom of the flip plate 18. As the lever 17 rotates, its inclined surface pushes the roller 22 upward, thereby causing the flip plate 18 to rotate around the connection point with the guide rod 20 and compress the spring 19. After the lever 17 rotates past the roller 22, under the reset action of the spring 19, the flip plate 18 quickly resets downward, driving the connecting rod 21 and the connecting block 15 downward, thereby stretching the rubber diaphragm 14. The outer edge of the rubber diaphragm 14 is fixed to the inner ring of the center hole of the fixing plate 12. When it is stretched, the space inside the bottom box 2 increases, the air pressure decreases, and some of the purified gas in the top box 1 enters the bottom box 2 through the one-way valve of the air nozzle 13 at this time. When the lever 17 rotates again to contact the roller 22 and pushes it upward, the rubber diaphragm 14 contracts under its own elasticity, increasing the air pressure inside the bottom chamber 2. At this time, the one-way valve of the air nozzle 13 closes, and the gas inside the bottom chamber 2 is sprayed into the top chamber 1 through the area near the connecting block 15 in the center of the rubber diaphragm 14, forming an upward airflow. This airflow can blow towards the bottom and surrounding area of ​​the dust collector bag 27, lifting some of the dust that has been cleaned by beating and brushing and settled at the bottom, making it easier for subsequent beating and brushing actions to remove it. At the same time, it can also perform a certain amount of back-blowing on the inside of the dust collector bag 27 to assist in dust removal.

[0054] Through the synergistic effect of the airflow jet generated by the aforementioned tapping components, the brush bristles 25 on the moving plate 23, and the rubber membrane 14, the dust on the surface of the dust collector bag 27 can be efficiently removed. This avoids the filter bag damage and secondary dust generation problems caused by traditional single-pulse cleaning, significantly improves the cleaning efficiency and the overall performance of the dust removal device, ensures the effectiveness of dust treatment during the production of powdered emulsion explosives, and reduces environmental pollution.

[0055] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0056] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A pulse dust collector for the production of powdered emulsion explosives, comprising a top box (1) and a bottom box (2), both the top box (1) and the bottom box (2) being hollow box structures, the top of the top box (1) being provided with a box cover (3), the top of the box cover (3) being connected to an air inlet pipe (4), the air inlet pipe (4) being connected to an external blower, and the top box (1) being provided with equidistant arrays of dust collection bags (27), characterized in that: It also includes a tapping assembly disposed between adjacent dust collection bags (27), the tapping assembly including a rotating shaft (5) and equidistantly arranged curved plates (6) on the rotating shaft (5). A rubber membrane (14) is provided between the top box (1) and the bottom box (2). The top box (1) is also equipped with a movable plate (23) that moves up and down, and the movable plate (23) is equipped with bristles (25) that match the dust collection bag (27).

2. The pulse dust collector for the production of powdered emulsion explosives according to claim 1, characterized in that: One end of the rotating shaft (5) extends to the outside of the top box (1). A synchronous pulley (7) is installed at the end of the rotating shaft (5) located outside the top box (1). Adjacent synchronous pulleys (7) are connected by a transmission belt (8). One set of the rotating shafts (5) is connected to an external motor.

3. The pulse dust collector for the production of powdered emulsion explosives according to claim 2, characterized in that: The curved plate (6) includes three sets of arc plates. The three sets of arc plates are arranged in a ring at equal intervals on the surface of the rotating shaft (5). The arc plates are attached to the outer side of the dust collector bag (27). The distance between two adjacent sets of curved plates (6) is the same as the distance between two adjacent sets of dust collector bags (27).

4. The pulse dust collector for the production of powdered emulsion explosives according to claim 1, characterized in that: The top box (1) and the bottom box (2) are detachably connected by a fixing plate (12). A central hole is provided in the center of the fixing plate (12). The outer edge of the rubber membrane (14) is fixedly connected to the inner circle of the central hole. A connecting block (15) is fixedly connected in the center of the rubber membrane (14).

5. A pulse dust collector for the production of powdered emulsion explosives according to claim 4, characterized in that: A connecting rod (21) is connected to the connecting block (15). A guide rod (20) is slidably connected to the top of the connecting rod (21). A flap (18) is connected to the top of the guide rod (20). A spring (19) is connected between the flap (18) and the connecting rod (21). The spring (19) is sleeved outside the guide rod (20). A roller (22) is rotatably installed inside the flap (18). The rubber membrane (14) is stretched under the traction of the connecting rod (21).

6. A pulse dust collector for the production of powdered emulsion explosives according to claim 5, characterized in that: A set of rotating shafts (5) located in the center of the top box (1) is connected to a bushing (16). A lever (17) is connected to one side of the bushing (16). The lever (17) is located below the roller (22). An inclined surface is opened on one side of the lever (17) below the roller (22).

7. A pulse dust collector for the production of powdered emulsion explosives according to claim 6, characterized in that: The fixed plate (12) is connected to an air nozzle (13), and a one-way valve is provided inside the air nozzle (13). The air pressure difference generated by the traction of the rubber diaphragm (14) causes the airflow in the bottom box (2) to be sprayed into the top box (1).

8. A pulse dust collector for the production of powdered emulsion explosives according to claim 1, characterized in that: Two sets of guide bars (10) are symmetrically installed on the outer wall of the top box (1). The guide bars (10) have a sliding groove, and a rack (11) is slidably installed in the sliding groove. A gear (9) is installed on one end of the rotating shaft (5) outside the top box (1). The gear (9) and the rack (11) are meshed.

9. A pulse dust collector for the production of powdered emulsion explosives according to claim 8, characterized in that: A fixing rod (26) is connected to one side of the rack (11). A guide groove is provided on the side wall of the top box (1). The fixing rod (26) is slidably installed in the guide groove. Limit switches are provided at both ends of the guide groove. The limit switches are electrically connected to an external motor.

10. A pulse dust collector for the production of powdered emulsion explosives according to claim 9, characterized in that: One side of the movable plate (23) is fixedly connected to the fixed rod (26), and the other side of the movable plate (23) is slidably connected to the inner wall of the top box (1). The movable plate (23) has through holes (24) at equal intervals. The bristles (25) are arranged in a ring at equal intervals in the through holes (24). The through holes (24) and the dust collector bag (27) are arranged in a collinear manner. The inner diameter of the through holes (24) is 5-7 mm larger than the outer diameter of the dust collector bag (27). The length of the bristles (25) is 9-11 mm.

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