A dust removal device for food-grade potassium chloride production

Abstract

This invention relates to the field of potassium chloride dust removal technology and discloses a dust removal device for the production of food-grade potassium chloride. The device includes a support frame, a housing on the top of the outer wall of the support frame, a dust removal device on the top of the outer wall of the support frame, and a filter bag on the top of the outer wall of the housing. In this invention, as the filter bag rapidly expands, a thrust is generated on the expansion ring, causing the movable block to move inwards towards the fixed plate. While the movable block moves, a rotating rod also rotates at the bottom of the outer wall of the fixed plate, generating a thrust on the movable block at the bottom of the rotating rod. This causes the rotating rod to experience resistance while rotating. Simultaneously, the airflow inside the filter bag blows through the movable block, causing a counter-thrust force on the movable block at the bottom of the rotating rod. This reduces the risk of bag tearing and fiber fatigue, protects the filter bag, and effectively improves dust removal efficiency.

Description

Technical Field

[0001] This invention relates to the field of potassium chloride dust removal technology, specifically a dust removal device for the production of food-grade potassium chloride. Background Technology

[0002] The dust removal device used in the production of food-grade potassium chloride adopts a multi-stage dust removal process of cyclone pre-dust removal + bag fine dust removal + water mist deep dust removal. It works in conjunction with components such as gas collection, flow guidance, gas-water separation, dust recovery, and intelligent control to achieve efficient capture, graded removal, and recycling of dust in the entire process of food-grade potassium chloride production. The entire process complies with the hygiene requirements of food-grade production. The overall workflow is as follows: dust collection → graded dust removal → gas-water separation → tail gas purification → dust recovery → device cleaning.

[0003] The process involves workers activating a dust removal device to introduce dust generated during the production of food-grade potassium chloride into the chamber. The dust is then thoroughly filtered through filter bags. After a period of operation, the pulse valve inside the dust removal device is activated, guiding gas rapidly into the filter bags. This causes the filter bags to expand rapidly and vibrate, resulting in repeated and intense expansion near the bag opening. The fibers are subjected to high-stress cycles, eventually leading to annular cracks or the detachment of the sealing ring. To address these issues, the following solutions are proposed. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a dust removal device for the production of food-grade potassium chloride, including a support frame, a housing disposed on the top of the outer wall of the support frame, a dust removal device disposed on the top of the outer wall of the support frame, and a filter bag disposed on the top of the outer wall of the housing, and further comprising:

[0005] The adaptation mechanism is fixedly installed on the top of the inner wall of the housing.

[0006] The limiting mechanism is fixedly installed on the outer wall of the adapting mechanism;

[0007] The lifting mechanism is slidably mounted on the inner wall of the adapting mechanism.

[0008] Preferably, the adapting mechanism includes:

[0009] Contact components are fixedly installed on the top of the inner wall of the housing.

[0010] A support component is fixedly installed on the outer wall of the contact component.

[0011] As the filter bag expands rapidly, it causes the support components to move.

[0012] Preferably, the limiting mechanism includes:

[0013] The force-applying component is fixedly installed on the outer wall of the contact component;

[0014] The follower component, which rotates with the follower component, is located on the outer wall of the contact component;

[0015] In this case, the contact component moves while the follow component moves.

[0016] Preferably, the lifting mechanism includes:

[0017] An enlarged component is slidably disposed on the inner wall of the contact component;

[0018] The damping component is located on the inner wall of the expanding component;

[0019] Specifically, when the contact component moves, the component is prevented from rotating along with it.

[0020] Preferably, the contact assembly includes a fixed plate fixedly connected to the top of the inner wall of the box, a movable block slidably connected to the inner wall of the fixed plate, a spring fixedly connected to one end of the movable block near the fixed plate, and an expansion ring fixedly connected to the other end of the movable block away from the spring.

[0021] As the filter bag expands rapidly, it generates a thrust on the expansion ring, causing the movable block to move inward toward the fixed plate and apply a thrust to the spring.

[0022] Preferably, the support assembly includes a fixed column fixedly connected to the side wall of the movable block, a rotating rod rotatably connected to the outer wall of the fixed column, and a torsion spring sleeved on the bottom of the outer wall of the fixed plate;

[0023] When the movable block moves, it generates a thrust on the movable block at the bottom of the rotating rod. At the same time as the movable block at the bottom of the rotating rod is subjected to the thrust, it is subjected to a counter-thrust.

[0024] Preferably, the force-applying component includes a shaped block fixedly connected to the bottom of the outer wall of the movable block, a sliding plate slidably connected to the outer wall of the fixed plate, and a rotating block rotatably connected to the outer wall of the fixed plate.

[0025] In this process, the moving block moves while the sliding plate is forced to move downwards.

[0026] Preferably, the following component includes a limiting plate rotatably connected to the outer wall of the fixed plate, and a torsion spring is sleeved on the bottom of the inner wall of the limiting plate;

[0027] When the rotating block is subjected to force and rotates, the torsion spring is compressed, and the moving block is restricted when the limiting plate rotates until it stops.

[0028] Preferably, the expansion assembly includes a contact block slidably connected to the inner wall of the expansion ring, a spring fixedly connected to the bottom of the outer wall of the contact block, a fixed shaft fixedly connected to the bottom of the side wall of the contact block, and a telescopic rod rotatably connected to the outer wall of the fixed shaft; a spring sheet is fixedly connected to the end of the movable block away from the spring.

[0029] When the limiting plate completes its restriction on the movable block, the contact block loses the restriction of the movable block and moves upward under the elastic force of the spring.

[0030] Preferably, the suppression component includes a fixed shaft 1 fixedly connected to the inner wall of the contact block, a torsion spring 2 sleeved on the outer wall of the fixed shaft 1, and a force-generating plate rotatably connected to the outer wall of the fixed shaft 1.

[0031] When the contact block moves upward, the force plate breaks free from the restriction of the expansion ring. During the downward movement of the force plate, the elastic force of the torsion spring II generates a downward pushing force on the surface of the filter bag.

[0032] The present invention has the following beneficial effects:

[0033] (1) While the filter bag expands rapidly, the present invention generates a thrust on the expansion ring, causing the movable block to move into the fixed plate. When the movable block moves, the rotating rod also rotates at the bottom of the outer wall of the fixed plate. When rotating, it generates a thrust on the movable block at the bottom of the rotating rod, causing the rotating rod to be subjected to resistance while rotating. At the same time as the movable block at the bottom of the rotating rod is subjected to the thrust, the wind inside the filter bag blows through, causing the movable block at the bottom of the rotating rod to be subjected to the counter-thrust. The above components reduce the risk of bag mouth tearing and fiber fatigue, protect the filter bag, and effectively improve dust removal efficiency.

[0034] (2) In this invention, while the movable block moves, the irregular block is driven to move. When the irregular block moves a certain distance, the rotating block is forced to rotate. When the rotating block is rotated by force, the limiting plate is driven to rotate. When the limiting plate rotates until it stops, the top inclined surface of the outer wall of the limiting plate contacts the bottom of the outer wall of the movable block. The movable block is restricted by the slot at the bottom of the movable block. The above components effectively limit the filter bag from expanding beyond its elastic limit under pulse conditions, reducing damage to the filter bag. At the same time, the components avoid generating a reaction force on the filter bag, improving the service life of the filter bag and maintaining the filtration effect of the filter bag.

[0035] (3) In this invention, since the expansion ring is still subject to wind force, the contact block moves upward without the restriction of the movable block and contacts the surface of the filter bag. At the same time as the expansion ring expands, a thrust is applied to the telescopic rod, which is compressed. When the expansion ring loses wind force and begins to reset, a tension is generated on the telescopic rod. Since the contact end between the contact block and the expansion ring is provided with ball bearings, when the telescopic rod is subjected to tension, the telescopic rod generates a tension on the contact block, forcing the contact block to move downward. While fixing, the contact area with the filter bag is increased by the outward expansion of the contact block, which effectively reduces the local stress concentration on the filter bag itself during emergency stop, causing scratches, wear or even tear.

[0036] (4) When the contact block moves upward, the force plate moves upward synchronously. The fixed shaft one and the torsion spring two move upward as well. When the contact block moves upward a certain distance, the force plate gets rid of the restriction of the expansion ring. Under the action of the torsion spring two, the force plate rotates towards one end of the filter bag. During the downward movement of the force plate, the elastic force of the torsion spring two generates a downward pushing force on the surface of the filter bag. By applying a short-term downward pushing force on the outside of the filter bag head through the above components, local pneumatic damping can be formed to suppress its lateral vibration and axial too fast reset, significantly reducing the collision frequency and intensity with the upper port of the keel, thereby improving the dust removal efficiency and reducing secondary dust. Attached Figure Description

[0037] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0039] Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention;

[0040] Figure 3 This is a schematic cross-sectional view of the overall structure of the present invention;

[0041] Figure 4 This is a schematic cross-sectional view of the contact component of the present invention;

[0042] Figure 5 This is a schematic cross-sectional view of the support component of the present invention;

[0043] Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle;

[0044] Figure 7 This is a schematic cross-sectional view of the force-applying component of the present invention;

[0045] Figure 8 This is a schematic diagram of some parts in the support assembly of the present invention;

[0046] Figure 9 For the present invention Figure 8 Enlarged view of point B in the middle;

[0047] Figure 10 This is a schematic cross-sectional view of the lifting mechanism of the present invention;

[0048] Figure 11 This is a schematic cross-sectional view of the enlarged component of the present invention;

[0049] Figure 12 For the present invention Figure 11 Enlarged view of point C in the middle;

[0050] Figure 13 This is a schematic cross-sectional view of the suppression component of the present invention.

[0051] The attached diagram lists the components represented by each number as follows:

[0052] In the diagram: 1. Adaptation mechanism; 11. Contact component; 12. Support component; 13. Bracket; 14. Housing; 15. Dust removal device; 16. Filter bag; 111. Fixing plate; 112. Movable block; 113. Spring; 114. Expansion ring; 121. Fixing column; 122. Rotating rod; 123. Torsion spring; 2. Restriction mechanism; 21. Force application component; 22. Following component; 211. Irregular block; 212. Sliding plate; 213. Rotating block; 221. Restriction plate; 222. Torsion spring one; 3. Lifting mechanism; 31. Expanding component; 32. Suppressing component; 311. Contact block; 312. Spring one; 313. Fixing shaft; 314. Telescopic rod; 315. Spring piece; 321. Fixing shaft one; 322. Torsion spring two; 323. Force plate. Detailed Implementation

[0053] 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.

[0054] Example 1, please refer to Figures 1-10 This invention relates to a dust removal device for the production of food-grade potassium chloride, comprising a support frame 13, a housing 14 disposed on the top of the outer wall of the support frame 13, a dust removal device 15 disposed on the top of the outer wall of the support frame 13, and a filter bag 16 disposed on the top of the outer wall of the housing 14, and further comprising:

[0055] Adaptation mechanism 1 is fixedly installed on the top of the inner wall of the housing 14;

[0056] Restriction mechanism 2 is fixedly installed on the outer wall of adaptation mechanism 1;

[0057] The lifting mechanism 3 is slidably disposed on the inner wall of the adapting mechanism 1.

[0058] Adaptive mechanism 1 includes:

[0059] Contact component 11 is fixedly installed on the top of the inner wall of housing 14;

[0060] Support component 12 is fixedly disposed on the outer wall of contact component 11;

[0061] In this process, the worker activates the dust removal device 15 to introduce the dust generated during the production of food-grade potassium chloride into the housing 14, where it is fully filtered through the filter bag 16. After working for a period of time, the worker activates the pulse valve inside the dust removal device 15 to guide gas into the filter bag 16, causing the filter bag 16 to expand rapidly and vibrate. As the filter bag 16 expands rapidly, it exerts a thrust on the contact component 11, forcing the contact component 11 to move. Simultaneously, the movement of the contact component 11 drives the support component 12 to move as well.

[0062] Restricted agency 2 includes:

[0063] Force application component 21 is fixedly installed on the outer wall of contact component 11;

[0064] Follower component 22, which rotates and is located on the outer wall of contact component 11;

[0065] In this process, when the contact component 11 moves, it drives the force application component 21 to move. When the force application component 21 moves a certain distance, it comes into contact with the following component 22, forcing the following component 22 to move.

[0066] The lifting mechanism 3 includes:

[0067] Enlargement component 31 is slidably disposed on the inner wall of contact component 11;

[0068] Suppression component 32 is rotatably disposed on the inner wall of expansion component 31;

[0069] When the contact component 11 moves, it causes the expansion component 31 to move, and the suppression component 32 rotates accordingly.

[0070] Example 2, please refer to Figures 4-13The present invention is a dust removal device for the production of food-grade potassium chloride. Based on Example 1, the contact component 11 includes a fixed plate 111 fixedly connected to the top of the inner wall of the box 14, a movable block 112 slidably connected to the inner wall of the fixed plate 111, a spring 113 fixedly connected to one end of the movable block 112 near the fixed plate 111, and an expansion ring 114 fixedly connected to one end of the movable block 112 away from the spring 113.

[0071] In this process, the worker activates the dust removal device 15 to introduce the dust generated during the production of food-grade potassium chloride into the housing 14. The dust is then thoroughly filtered through the filter bag 16. After a period of operation, the worker activates the pulse valve inside the dust removal device 15 to guide gas into the filter bag 16, causing the filter bag 16 to expand rapidly and vibrate. As the filter bag 16 expands rapidly, it exerts a thrust on the expansion ring 114, forcing the expansion ring 114 to expand. When the expansion ring 114 expands outward, it applies a thrust to the movable block 112, causing the movable block 112 to move into the fixed plate 111. This thrust applies a thrust to the spring 113, causing the spring 113 to be compressed and accumulate potential energy.

[0072] The support assembly 12 includes a fixed column 121 fixedly connected to the side wall of the movable block 112, a rotating rod 122 rotatably connected to the outer wall of the fixed column 121, and a torsion spring 123 sleeved on the bottom of the outer wall of the fixed plate 111.

[0073] When the movable block 112 moves, it drives the fixed column 121 to move synchronously. At this time, the rotating rod 122 rotates on the outer wall of the fixed column 121 and at the same time, the rotating rod 122 also rotates at the bottom of the outer wall of the fixed plate 111. When rotating, it generates a thrust on the movable block 112 at the bottom of the rotating rod 122, so that the rotating rod 122 is resisted while rotating. As a result, the speed of the movable block 112 is slowed down when it moves into the fixed plate 111. At the same time that the movable block 112 at the bottom of the rotating rod 122 is pushed, the air inside the filter bag 16 blows, so that the movable block 112 at the bottom of the rotating rod 122 is pushed back. When the thrust exceeds the elastic limit of the torsion spring 123, it forces the rotating rod 122 at the top of the torsion spring 123 to rotate to the left, and the rotating rod 122 at the bottom of the torsion spring 123 also rotates to the left, putting pressure on the torsion spring 123 and forcing the torsion spring 123 to be compressed.

[0074] The force application component 21 includes an irregularly shaped block 211 fixedly connected to the bottom of the outer wall of the movable block 112, a sliding plate 212 slidably connected to the outer wall of the fixed plate 111, and a rotating block 213 rotatably connected to the outer wall of the fixed plate 111.

[0075] As the movable block 112 moves, it drives the irregular block 211 to move. When the irregular block 211 moves a certain distance, it comes into contact with the sliding plate 212, forcing the sliding plate 212 to move downward. When the sliding plate 212 moves downward, it applies a pushing force to the rotating block 213, forcing the rotating block 213 to rotate.

[0076] The following component 22 includes a limiting plate 221 rotatably connected to the outer wall of the fixed plate 111, and a torsion spring 222 is sleeved on the bottom of the inner wall of the limiting plate 221;

[0077] When the rotating block 213 rotates under force, it drives the limiting plate 221 to rotate. When the limiting plate 221 rotates, it applies pressure to the torsion spring 222, forcing the torsion spring 222 to be compressed and accumulate potential energy. When the limiting plate 221 rotates until it stops, the top inclined surface of the outer wall of the limiting plate 221 contacts the bottom of the outer wall of the movable block 112, and the movable block 112 is restricted by the groove at the bottom of the movable block 112. When the pressure on the movable block 112 is removed, the torsion spring 222 applies a pushing force to the limiting plate 221, causing the movable block 112 to first undergo a slight displacement, and then complete the reset through the spring 113.

[0078] The expansion assembly 31 includes a contact block 311 slidably connected to the inner wall of the expansion ring 114, a spring 312 fixedly connected to the bottom of the outer wall of the contact block 311, a fixed shaft 313 fixedly connected to the bottom of the side wall of the contact block 311, and a telescopic rod 314 rotatably connected to the outer wall of the fixed shaft 313; a spring piece 315 is fixedly connected to the end of the movable block 112 away from the spring 113.

[0079] When the limiting plate 221 completes its restraint on the movable block 112, the expansion ring 114 is still subjected to wind force, causing the movable block 112 to exert a pushing force on the spring piece 315. This forces the spring piece 315 to deform under the force and accumulate potential energy. After the movable block 112 fully exerts its pushing force on the spring piece 315, the contact block 311 loses the restraint of the movable block 112. Under the elastic force of the spring 312, the contact block 311 moves upward. Simultaneously, as the expansion ring 114 expands, it exerts a pushing force on the telescopic rod 314, causing... When the telescopic rod 314 is compressed, the top of the outer wall of the telescopic rod 314 moves upward through the fixed shaft 313, thus completing the reset of the telescopic rod 314. At this time, the telescopic rod 314 is in its longest state. When the expansion ring 114 loses wind power and begins to reset, it generates a pulling force on the telescopic rod 314. Since the contact end between the contact block 311 and the expansion ring 114 is equipped with ball bearings, when the telescopic rod 314 is subjected to the pulling force, the telescopic rod 314 generates a pulling force on the contact block 311, forcing the contact block 311 to move downward.

[0080] The suppression component 32 includes a fixed shaft 321 fixedly connected to the inner wall of the contact block 311, a torsion spring 322 sleeved on the outer wall of the fixed shaft 321, and a force plate 323 rotatably connected to the outer wall of the fixed shaft 321.

[0081] When the contact block 311 moves upward, it drives the force plate 323 to move upward synchronously. The fixed shaft 321 and the torsion spring 322 follow and move upward. When it moves upward a certain distance, the force plate 323 gets rid of the restriction of the expansion ring 114. Under the action of the torsion spring 322, the force plate 323 rotates towards one end of the filter bag 16. During the downward movement of the force plate 323, the elastic force of the torsion spring 322 generates a downward pushing force on the surface of the filter bag 16.

[0082] One specific application of this embodiment is as follows: the worker starts the dust removal device 15 to introduce the dust generated in the production of food-grade potassium chloride into the box 14, and it is fully filtered by the filter bag 16. After working for a period of time, the pulse valve inside the dust removal device 15 is activated to guide the gas into the filter bag 16 quickly, causing the filter bag 16 to expand rapidly and vibrate.

[0083] During dust removal, the dust generated by food-grade potassium chloride has a certain degree of adhesion, and the dust particles are mostly micron-sized fine powder, which easily clogs the pores of the filter bag 16. Pulse cleaning technology is typically used, where a high-pressure airflow concentrates and impacts the upper part of the filter bag 16. This causes repeated and violent expansion near the bag opening, subjecting the fibers to high stress cycles, eventually leading to annular cracks or sealing ring detachment. Simultaneously, the rapid expansion of the filter bag 16 exerts a thrust on the expansion ring 114, forcing it to expand. As the expansion ring 114 expands outward, it applies a thrust to the movable block 112, causing it to move inward towards the fixed plate 111. This thrust applies a thrust to the spring 113, causing it to compress and accumulate potential energy. When block 112 moves, it drives fixed column 121 to move synchronously. At this time, rotating rod 122 rotates on the outer wall of fixed column 121, and at the same time, rotating rod 122 also rotates at the bottom of the outer wall of fixed plate 111. During rotation, it generates a thrust on the movable block 112 at the bottom of rotating rod 122, causing the rotating rod 122 to be subject to resistance while rotating. This slows down the speed of movable block 112 as it moves into fixed plate 111. While the movable block 112 at the bottom of rotating rod 122 is subjected to thrust, the airflow inside filter bag 16 blows through, causing the movable block 112 at the bottom of rotating rod 122 to be subjected to counter-thrust. When the thrust exceeds the elastic limit of torsion spring 123, the top and bottom of rotating rod 122... All components rotate to the left, applying pressure to the torsion spring 123 and forcing it to compress. Through these components, the expansion rate of the bag opening is moderately slowed down while ensuring the dust removal effect. At the same time, the components provide support for the outer wall of the filter bag 16, thereby reducing mechanical stress during the dust removal process to a certain extent, reducing the risk of bag opening tearing and fiber fatigue, protecting the filter bag 16, and effectively improving dust removal efficiency.

[0084] Utilizing the movement characteristics of the movable block 112, the irregular block 211 moves simultaneously with the movable block 112. When the irregular block 211 moves a certain distance, it contacts the sliding plate 212, forcing the sliding plate 212 to move downwards. As the sliding plate 212 moves downwards, it applies a pushing force to the rotating block 213, causing the rotating block 213 to rotate. When the rotating block 213 rotates under force, it drives the limiting plate 221 to rotate. When the limiting plate 221 rotates, it applies pressure to the torsion spring 222, forcing the torsion spring 222 to compress and accumulate potential energy. When the limiting plate 221 rotates until it stops, the top inclined surface of the outer wall of the limiting plate 221 contacts the bottom of the outer wall of the movable block 112, and the movable block 112 is restricted through the groove at the bottom of the movable block 112. When the pressure on the movable block 112 disappears, the torsion spring 222 applies a pushing force to the limiting plate 221, causing the movable block 112 to undergo a small retraction displacement. Under the elastic force, the filter bag 16 completes its reset. When the blowing pressure is too high, the radial expansion rate of the filter bag 16 can exceed 30%, far exceeding the material's elastic limit, causing fiber breakage or seam collapse, resulting in mechanical damage to the filter bag 16. In severe cases, it can cause large-area damage. The above-mentioned components effectively limit the expansion of the filter bag 16 to exceed its own elastic limit under pulse conditions, reducing damage to the filter bag 16. At the same time, they prevent the components from generating a reaction force on the filter bag 16, improving the service life of the filter bag 16 and maintaining the filtration effect of the filter bag 16.

[0085] Utilizing the aforementioned limiting plate 221 to restrict the movable block 112, the expansion ring 114 is still subjected to wind force, causing the movable block 112 to exert a pushing force on the spring piece 315. This forces the spring piece 315 to deform under stress and accumulate potential energy. After the movable block 112 fully applies the pushing force to the spring piece 315, the contact block 311 loses the restriction of the movable block 112. Under the elastic force of the spring 312, the contact block 311 moves upward and contacts the surface of the filter bag 16. Simultaneously, as the expansion ring 114 expands, it applies a pushing force to the telescopic rod 314, causing the telescopic rod 314 to be compressed. As the contact block 311 moves upward, the fixed shaft 313 drives the top of the outer wall of the telescopic rod 314 to move upward, thereby completing the telescopic rod 314. When the expansion ring 114 loses wind power and begins to reset, it generates a pulling force on the telescopic rod 314. Since the contact end of the contact block 311 and the expansion ring 114 is equipped with ball bearings, when the telescopic rod 314 is subjected to the pulling force, the telescopic rod 314 generates a pulling force on the contact block 311, forcing the contact block 311 to move down. While fixing, the outward expansion of the contact block 311 increases the contact area with the filter bag 16, effectively reducing the local stress concentration on the filter bag 16 itself during emergency stop, which can cause scratches, wear, or even tearing.

[0086] Utilizing the upward movement of the contact block 311, the force plate 323 moves upward synchronously as the contact block 311 moves upward. The fixed shaft 321 and the torsion spring 322 follow suit. After moving upward a certain distance, the force plate 323 breaks free from the restriction of the expansion ring 114. Under the action of the torsion spring 322, the force plate 323 rotates towards one end of the filter bag 16. During the downward movement of the force plate 323, the elastic force of the torsion spring 322 generates a downward pushing force on the surface of the filter bag 16. When the filter bag 16 rebounds after pulse cleaning, the top is most prone to high-frequency oscillation and impact due to the free end effect. By applying a brief downward pushing force to the outside of the head of the filter bag 16 through the above-mentioned components, local pneumatic damping can be formed to suppress its lateral vibration and axial too-fast reset, significantly reducing the collision frequency and intensity with the upper port of the keel, thereby improving the cleaning efficiency and reducing secondary dust.

[0087] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A dust removal device for food-grade potassium chloride production, comprising a support (13), a box (14) is arranged at the top of the outer wall of the support (13), a dust cleaning device (15) is arranged at the top of the outer wall of the support (13), and a filter bag (16) is arranged at the top of the outer wall of the box (14), characterized in that, Also includes: An adaptation mechanism (1) is fixedly installed on the top of the inner wall of the housing (14); A limiting mechanism (2) is fixedly installed on the outer wall of the adapting mechanism (1); The lifting mechanism (3) is slidably disposed on the inner wall of the adapting mechanism (1).

2. The dust removal device for food-grade potassium chloride production according to claim 1, characterized in that: The adaptation mechanism (1) includes: Contact assembly (11), which is fixedly disposed on the top of the inner wall of the housing (14); A support component (12) is fixedly disposed on the outer wall of the contact component (11); In this process, the staff activates the dust removal device (15) to introduce the dust generated during the production of food-grade potassium chloride into the box (14), where it is fully filtered through the filter bag (16). After working for a period of time, the staff activates the pulse valve inside the dust removal device (15) to guide the gas into the filter bag (16) quickly, causing the filter bag (16) to expand rapidly and vibrate.

3. The dust removal device for food-grade potassium chloride production according to claim 2, characterized in that: The limiting mechanism (2) includes: Force application component (21), which is fixedly disposed on the outer wall of contact component (11); Follower component (22) is rotatably disposed on the outer wall of contact component (11).

4. A dust removal device for the production of food-grade potassium chloride according to claim 3, characterized in that: The lifting mechanism (3) includes: An enlargement component (31) is slidably disposed on the inner wall of the contact component (11); Suppression component (32) is rotatably disposed on the inner wall of expansion component (31).

5. A dust removal device for the production of food-grade potassium chloride according to claim 4, characterized in that: The contact assembly (11) includes a fixed plate (111) fixedly connected to the top of the inner wall of the housing (14), a movable block (112) slidably connected to the inner wall of the fixed plate (111), a spring (113) fixedly connected to one end of the movable block (112) near the fixed plate (111), and an expansion ring (114) fixedly connected to one end of the movable block (112) away from the spring (113). The expansion ring (114) is located away from the movable block (112) at one end, which is in contact with the outer wall of the filter bag (16), and the spring (113) is located away from the movable block (112) at one end, which is fixedly connected to the inner wall of the fixing plate (111).

6. A dust removal device for the production of food-grade potassium chloride according to claim 5, characterized in that: The support assembly (12) includes a fixed column (121) fixedly connected to the side wall of the movable block (112), a rotating rod (122) rotatably connected to the outer wall of the fixed column (121), and a torsion spring (123) sleeved on the bottom of the outer wall of the fixed plate (111). The two ends of the torsion spring (123) are connected to the outer wall of the fixed plate (111) and the side wall of the rotating rod (122) respectively, and the force is applied to the rotation axis of the rotating rod (122).

7. A dust removal device for the production of food-grade potassium chloride according to claim 6, characterized in that: The force application component (21) includes a shaped block (211) fixedly connected to the bottom of the outer wall of the movable block (112), a sliding plate (212) slidably connected to the outer wall of the fixed plate (111), and a rotating block (213) rotatably connected to the outer wall of the fixed plate (111). The irregular block (211) is slidably connected to the bottom of the outer wall of the fixed plate (111).

8. A dust removal device for the production of food-grade potassium chloride according to claim 7, characterized in that: The following component (22) includes a limiting plate (221) rotatably connected to the outer wall of the fixed plate (111), and a torsion spring (222) is sleeved on the bottom of the inner wall of the limiting plate (221). The outer wall of the rotating block (213) is fixedly connected to the inner wall of the limiting plate (221), and the two ends of the torsion spring (222) are fixedly connected to the outer wall of the fixing plate (111).

9. A dust removal device for the production of food-grade potassium chloride according to claim 7, characterized in that: The expansion assembly (31) includes a contact block (311) slidably connected to the inner wall of the expansion ring (114), a spring (312) fixedly connected to the bottom of the outer wall of the contact block (311), a fixed shaft (313) fixedly connected to the bottom of the side wall of the contact block (311), and a telescopic rod (314) rotatably connected to the outer wall of the fixed shaft (313); a spring piece (315) is fixedly connected to the end of the movable block (112) away from the spring (113). Among them, the end of the telescopic rod (314) away from the fixed shaft (313) is rotatably connected to the outer wall of the fixed plate (111), the bottom of the outer wall of the spring (312) is fixedly connected to the inner wall of the expansion ring (114), and the end of the spring piece (315) away from the movable block (112) is fixedly connected to the inner wall of the expansion ring (114).

10. A dust removal device for the production of food-grade potassium chloride according to claim 9, characterized in that: The suppression component (32) includes a fixed shaft (321) fixedly connected to the inner wall of the contact block (311), a torsion spring (322) sleeved on the outer wall of the fixed shaft (321), and a force plate (323) rotatably connected to the outer wall of the fixed shaft (321). The second torsion spring (322) acts on the bottom of the inner wall of the force plate (323).

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