A dust-proof multi-stage filtration and recycling equipment for industrial ceramic material production

Abstract

The present invention discloses a multi-stage filtration and recovery treatment device for preventing clogging of dust for industrial ceramic material production, which relates to the technical field of dust filtering and recovery equipment, including a supporting frame, a cyclone separator is provided on the upper surface of the supporting frame, a bottom frame is provided on one side of the supporting frame, a bag dust collector is provided on the upper surface of the bottom frame, a filter assembly is provided inside the bag dust collector, the filter assembly includes a filter cage component and a vibrating component, the vibrating component includes: an isolation plate body, the isolation plate body is provided at the inner center of the bag dust collector, the filter cage component includes: filter bags, a plurality of filter bags are provided on the bottom surface of each movable plate body, an air ring assembly is provided inside the cyclone separator, and the air ring assembly includes: a top ring pipe and a bottom ring pipe. In this solution, by providing the air ring assembly and the filter assembly, it is ensured that the equipment maintains low emissions under continuous high-load conditions, thereby achieving efficient anti-clogging and long-term stable operation of industrial ceramic dust recovery.

Description

Technical Field

[0001] The invention relates to the technical field of dust filtering and recovery equipment, in particular to a multi-stage dust clogging-proof filtering and recovery processing equipment for industrial ceramic material production. Background Art

[0002] Industrial ceramic materials are widely used in aerospace, electronic information, new energy and high-end equipment manufacturing due to their excellent properties such as high strength, high temperature resistance and corrosion resistance. With the continuous expansion of the scale of the industrial ceramics industry, the dust pollution problem generated in its production process has become increasingly prominent. The preparation of industrial ceramics usually involves processes such as raw material crushing, mixing, molding, and sintering. Among them, raw material processing (such as grinding and screening of powders such as clay, feldspar, and alumina) and sintering cooling stages will produce a large amount of dust-laden gas. These dusts not only contain micron-sized fine particles (PM2.5 accounts for more than 60%), but also contain highly viscous and high-humidity components (such as free silica and organic binder residues). Their chemical composition is complex and their physical properties vary significantly, which puts strict requirements on the separation efficiency and operational stability of dust recovery equipment. At present, industrial ceramic dust recovery generally adopts a multi-stage filtration technology route, that is, the primary separation of large-particle dust is achieved through a cyclone separator, and then the fine particles are deeply purified by a bag dust collector.

[0003] Traditional multi-stage filtration and recovery equipment has significant technical bottlenecks when dealing with industrial ceramic dust. Taking cyclone separators as an example, conventional designs rely on a single centrifugal force field to achieve gas-solid separation, but are limited by structural defects. Local turbulence zones are easily formed inside, causing large particles of dust to be re-involved in the main airflow due to the back-mixing flow. The separation efficiency fluctuates by 15% to 25%, especially for coarse particles with a particle size greater than 50μm. The capture rate is less than 80%. At the same time, there is a lack of effective flow field control measures in the ash hopper area, and the amount of dust carried by the back-mixing flow can reach 8% to 12% of the total air intake, causing secondary dust pollution. In the terminal filtration link, traditional bag dust collectors are generally The fixed filter cage structure has poor filter bag support uniformity and is prone to collapse due to local stress concentration. In addition, the existing cleaning technology has obvious shortcomings for highly sticky ceramic dust (such as those containing clay and feldspar components). Although pulse jetting can remove surface dust, it is difficult to destroy the deep adhesive layer. After 2 to 3 hours of operation, the filter bag pressure difference will increase by 30% to 40%, which can easily cause filter bag fiber breakage (shortening the service life by 40% to 50%). More importantly, the existing equipment lacks real-time monitoring and active intervention mechanisms, and manual shutdown is required to check dust adhesion at regular intervals, resulting in unplanned downtime accounting for 12% to 15%, seriously affecting production continuity. Summary of the Invention

[0004] The purpose of the present invention is to provide a multi-stage filtration and recovery treatment device for dust used in the production of industrial ceramic materials to prevent clogging, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a multi-stage filtration and recovery treatment device for dust used in the production of industrial ceramic materials to prevent clogging, comprising:

[0006] A support frame, wherein a cyclone separator is provided on the upper surface of the support frame, a bottom frame is provided on one side of the support frame, a bag dust collector is provided on the upper surface of the bottom frame, and a filter assembly is provided inside the bag dust collector;

[0007] The filter assembly includes a filter cage component and a vibration component, and the vibration component includes: an isolation plate body, the isolation plate body is arranged at the inner center of the bag dust collector, a plurality of movable plates are arranged at the center of the isolation plate body, and force-bearing arc blocks are arranged at both ends of the movable plates. Additional side frames are arranged on both side surfaces of the bag dust collector, and movable top blocks are arranged on the upper surfaces of the additional side frames;

[0008] The filter cage component includes: a filter bag, a plurality of filter bags are provided on the bottom surface of each movable plate body, a plurality of bag cages are provided inside the filter bag, the bag cages are connected by connecting rods, and the side surface of the bag cage is provided with four movable side strips;

[0009] An air ring assembly is provided inside the cyclone separator, and the air ring assembly includes: a top ring tube and a bottom ring tube, both of which are sleeved on the outer surface of the cyclone separator, and a plurality of bottom exhaust fans are provided on the bottom surfaces of the top ring tube and the bottom ring tube, a plurality of main air outlet branches are provided inside the top ring tube, and a plurality of auxiliary air outlet branches are provided inside the bottom ring tube.

[0010] Furthermore, the top ring tube is located on the upper side of the outer surface of the cyclone separator, the bottom ring tube is located on the lower side of the outer surface of the cyclone separator, and a buffer arc plate is provided on the upper surface of the main air outlet branch pipe located in the opposite side area of ​​the air inlet end of the cyclone separator.

[0011] Furthermore, a top air outlet is provided on a surface of one side of the main air outlet branch pipe located inside the cyclone separator, and a bottom air outlet is provided on a surface of one side of the auxiliary air outlet branch pipe located inside the cyclone separator.

[0012] Furthermore, the upper surface of the movable plate body is provided with a plurality of cleaning air holes, and the inner side surface of the bag filter is provided with a plurality of pulse cleaning pipes matched with the movable plate body.

[0013] Furthermore, side connecting plates are provided on both side surfaces of the movable plate body, a plurality of connecting springs are provided on the bottom surface of the side connecting plates, the top surface of the connecting springs is connected to the upper surface of the isolation plate body, two limiting plates are provided on the upper surface of the movable plate body, and limiting grooves that cooperate with the limiting plates are opened inside the side walls of both sides of the bag dust collector.

[0014] Furthermore, four motor storage boxes are provided on the surface of the bag cage, and the four motor storage boxes are respectively matched with four movable side strips. A telescopic motor is provided inside the motor storage box, and the end of the output shaft of the telescopic motor is connected to one side surface of the movable side strip. An induction fan blade is also provided on one side surface of the motor storage box, and there is an electrical connection between the induction fan blade and the telescopic motor.

[0015] Furthermore, an ash hopper is provided on the bottom surface of the cyclone separator, an air inlet pipe is provided on the side surface of the cyclone separator, a fan for assisting air intake is provided inside the air inlet pipe, a transmission air pipe is provided between the bag dust collector and the cyclone separator, and a dust collecting box is provided on the bottom surface of the bag dust collector.

[0016] Furthermore, the upper surface of the cyclone separator is provided with a transmission air duct connected to one end of the bag dust collector, the one side surface of the bag dust collector is provided with a connecting air port connected to the other end of the transmission air duct, and the other side surface of the transmission air duct is provided with an air outlet pipe.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In this solution, by providing an air ring assembly, the top and bottom ring tubes work together to construct a dynamic air curtain barrier inside the cyclone separator, achieving dual optimization of enhanced separation of the main cyclone and efficient suppression of back-mixing flow. The high-speed airflow ejected from the top ring tube forms an aerodynamic buffer layer, allowing large dust particles to quickly fall into the ash hopper under the action of centrifugal force, thereby improving separation efficiency. The high-speed, low-density air curtain layer ejected from the bottom ring tube intercepts particles and isolates them from the flow field, significantly reducing the amount of back-mixing in the ash hopper. At the same time, it reduces dust accumulation inside the equipment, avoids the risk of blockage, extends the equipment maintenance cycle, and ensures the continuity and stability of dust recovery in the production of industrial ceramic materials.

[0019] 2. In this solution, by providing a filter cage component, efficient anti-collapse and adaptive dust cleaning of the filter bag are achieved. The movable side strips are tightly attached to the inner wall of the filter bag under the action of the elastic connecting rope, forming a uniform support to prevent the filter bag from collapsing due to the impact of dust-laden airflow, ensuring the stability of the filtration area. The induction fan blades monitor the airflow status in real time. When too much dust adheres, the telescopic motor drives the movable side strips to expand outward, destroying the adhesion of the dust layer through radial tensile stress. At the same time, slight vibration promotes dust shedding, ensuring the air permeability of the filter bag, avoiding the decrease in filtration efficiency due to dust clogging, extending the service life of the filter bag, and reducing the dust emission concentration in industrial ceramic production;

[0020] 3. In this solution, by providing a vibrating component, the synergistic effect of mechanical vibration and pulse airflow is achieved to achieve efficient cleaning and anti-caking of the filter bags. The driving motor drives the movable top block to move back and forth, pushing the movable plate to vibrate vertically, destroying the adhesion between the high-viscosity ceramic dust and the filter bag, and preventing the dust from absorbing moisture and agglomerating to form a hard shell. The pulse cleaning pipe sprays high-pressure airflow when the movable plate vibrates to the highest point, so that the airflow shear force and the vibration inertia force are superimposed, and the residual dust shedding rate is increased, effectively solving the problem of poor cleaning effect of traditional pulse dust removal on sticky dust, and ensuring the long-term stable operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 Schematic diagram of the internal structure of the bag filter of the present invention;

[0023] Figure 3 Schematic diagram of the internal structure of the cyclone separator of the present invention;

[0024] Figure 4 It is a schematic structural diagram of the vibration component of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the filter cage component of the present invention;

[0026] Figure 6 This is a schematic diagram of the bag cage structure of the present invention;

[0027] Figure 7 For the present invention Figure 3 Enlarged view of point A in the middle;

[0028] Figure 8 For the present invention Figure 3 Enlarged view of point B in the middle.

[0029] Figure: 1. Support frame; 2. Bottom frame; 3. Cyclone separator; 4. Inlet pipe; 5. Transmission pipe; 6. Bag filter; 7. Dust box; 8. Additional side frame; 9. Movable top block; 10. Drive motor; 11. Pulse cleaning pipe; 12. Exhaust pipe; 13. Connecting port; 14. Isolation plate; 15. Movable plate; 16. Filter bag; 17. Transmission pipe; 18. Ash hopper; 19. Connecting spring ; 20. Clean the air holes; 21. Limiting plate; 22. Forced arc block; 23. Bag cage; 24. Connecting rod; 25. Motor storage box; 26. Movable side strip; 27. Telescopic motor; 28. Induction fan blade; 29. ​​Top ring pipe; 30. Main air outlet branch; 31. Buffer arc plate; 32. Top air outlet; 33. Bottom exhaust fan; 34. Bottom ring pipe; 35. Auxiliary air outlet branch; 36. Bottom air outlet. DETAILED DESCRIPTION

[0030] 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.

[0031] Example 1: Please refer to Figures 1 to 8 , a multi-stage dust filtration and recovery treatment equipment for industrial ceramic material production with anti-clogging, comprising:

[0032] The support frame 1 is provided with a cyclone separator 3 on the upper surface of the support frame 1. The cyclone separator 3 is the core component of the equipment for primary dust separation. The bottom surface of the cyclone separator 3 is provided with an ash hopper 18. The side surface of the cyclone separator 3 is provided with an air inlet pipe 4. The inside of the air inlet pipe 4 is provided with a fan for auxiliary air intake. A bottom frame 2 is provided on one side of the support frame 1. The equipment is mainly composed of the support frame 1 and the bottom frame 2 to form a basic support frame. The support frame 1 is welded with high-strength steel and has a stable structure and good bearing capacity. It can provide solid support for the cyclone separator 3 installed thereon to ensure that the equipment will not be damaged by vibration or airflow during operation. The bottom frame 2 is also made of strong material, which cooperates with the supporting frame 1 to form a stable whole, providing a reliable installation platform for components such as the bag dust collector 6. The upper surface of the bottom frame 2 is provided with a bag dust collector 6, and a transmission air pipe 5 is provided between the bag dust collector 6 and the cyclone separator 3. A filter assembly is provided inside the bag dust collector 6, and a dust collecting box 7 is provided on the bottom surface of the bag dust collector 6. A transmission air duct 17 connected to one end of the bag dust collector 6 is provided on the upper surface of the cyclone separator 3. The transmission air duct 17 ensures that the dust-laden airflow after preliminary separation by the cyclone separator 3 can smoothly enter the bag dust collector The dust collector 6 performs secondary filtration. A connecting air port 13 connected to the other end of the transmission air pipe 5 is provided on one side surface of the bag dust collector 6. An air outlet 12 is provided on the other side surface of the transmission air pipe 5. An air ring assembly is provided inside the cyclone separator 3. The air ring assembly includes: a top ring pipe 29 and a bottom ring pipe 34. The top ring pipe 29 and the bottom ring pipe 34 are both sleeved on the outer surface of the cyclone separator 3. The top ring pipe 29 is located on the upper side of the outer surface of the cyclone separator 3, and the bottom ring pipe 34 is located on the lower side of the outer surface of the cyclone separator 3. The function of the bottom ring pipe 34 is to form a high-speed, low-density air curtain layer at the bottom of the cyclone separator 3 to prevent the back-mixing flow in the ash hopper 18 from transferring the powder The dust is brought back into the main cyclone, thereby ensuring the separation effect. The bottom surfaces of the top annular tube 29 and the bottom annular tube 34 are both provided with multiple bottom exhaust fans 33. The interior of the top annular tube 29 is provided with multiple main air outlet branch pipes 30. These main air outlet branch pipes 30 are evenly distributed in the top annular tube 29. The upper surface of the main air outlet branch pipe 30 located in the opposite side area of ​​the air inlet end of the cyclone separator 3 is provided with a buffer arc plate 31. The main air outlet branch pipe 30 is provided with a top air outlet 32 ​​on one side of the surface inside the cyclone separator 3. The interior of the bottom annular tube 34 is provided with multiple auxiliary air outlet branch pipes 35. The auxiliary air outlet branch pipe 35 is provided with a bottom air outlet 36 on one side of the surface inside the cyclone separator 3.

[0033] When the equipment is in use, the air ring assembly realizes efficient separation and anti-clogging of dust in the cyclone separator 3 through the coordinated action of the top ring pipe 29 and the bottom ring pipe 34. When the dust-laden airflow enters the cyclone separator 3 through the air inlet pipe 4, the bottom exhaust fan 33 on the bottom surface of the top ring pipe 29 and the bottom ring pipe 34 is started under the signal drive of the staff, and the multiple main air outlet branches 30 of the top ring pipe 29 are used to spray high-speed airflow into the separator through the top air outlet 32. The airflow direction is at a downward angle of forty-five degrees to the dust-laden airflow, and an aerodynamic buffer layer is formed in the area opposite to the air inlet end. After the dust-laden airflow enters the cyclone separator 3 through the air inlet pipe 4, a high-speed rotating main vortex is formed under the action of the tangential force. The centrifugal force field strength directly affects the separation efficiency of large particles of dust. Through the action of the aerodynamic buffer layer, large particles of dust will fall quickly into the ash hopper 18 under the action of centrifugal force. When the main vortex reaches the bottom of the cyclone separator 3, a back-mixed flow may be generated. The back-mixed flow is the upward flow generated by the rotation of the airflow in the ash hopper 18 Backflow, when the back-mixed flow is backflowing upward, it is easy to carry the dust stored in the ash hopper 18 and re-enter the main vortex, resulting in a decrease in the separation efficiency of the separation zone. At this time, the bottom ring pipe 34 comes into play, and the auxiliary air outlet branch 35 of the bottom ring pipe 34 sprays upward at a 30-degree elevation angle through the bottom air outlet 36, forming a high-speed low-density air curtain layer at the bottom of the cone. The air curtain layer achieves precise control of the back-mixed particles through the dual effects of particle interception and flow field isolation, making it impossible for the main vortex to pass through the pressure of the air curtain layer. After entering the ash hopper 18, the back mixed flow cannot break through the air curtain layer and diffuse in the opposite direction, so that a physical isolation zone is formed between the ash hopper 18 mouth and the cylinder separation area. After entering the ash hopper 18, coarse dust particles are difficult to be carried out here, and fine particles have small inertia. Under the drag force of the high-speed airflow in the air curtain layer, they will be lifted back to the separation area and cannot break through the air curtain layer to enter the ash hopper 18. The fine dust particles will follow the air flow through the transmission air duct 17 and then pass through the transmission air duct 5 into the interior of the bag filter 6 for secondary filtration.

[0034] The filter assembly includes a filter cage component and a vibration component. The vibration component includes: an isolation plate body 14, the isolation plate body 14 is arranged at the internal center of the bag dust collector 6, and a plurality of movable plate bodies 15 are arranged at the center of the isolation plate body 14. The movable plate body 15 is a key execution component of the vibration component to realize the vibration function. The upper surface of the movable plate body 15 is provided with a plurality of cleaning air holes 20. These cleaning air holes 20 are the action points of the pulse cleaning tube 11 spraying high-pressure air flow. The internal side surface of the bag dust collector 6 is provided with a plurality of pulse cleaning tubes 11 that match the movable plate body 15. Both side surfaces of the movable plate body 15 are provided with side connecting plates. The bottom surface of the side connecting plate is provided with a plurality of connecting springs 19. The connecting spring 19 is made of a highly elastic and fatigue-resistant material and has good elasticity and recovery performance. 9 is connected to the upper surface of the isolation plate body 14, and the upper surface of the movable plate body 15 is provided with two limiting plates 21. The side walls on both sides of the bag dust collector 6 are provided with limiting grooves that cooperate with the limiting plate bodies 21. The limiting plate bodies 21 are embedded in the limiting grooves. When the movable plate body 15 vibrates, the limiting plate body 21 can only slide up and down in the limiting grooves, thereby limiting the movement direction of the movable plate body 15, so that it always maintains vertical vibration, improving the working accuracy and stability of the vibrating component, and both ends of the movable plate body 15 are provided with force arc blocks 22. Both side surfaces of the bag dust collector 6 are provided with additional side frames 8, and one side surface of the additional side frame 8 is provided with a drive motor 10. A threaded rod is provided on the output end of the drive motor 10, and the surface of the threaded rod is engaged with a movable top block 9 that cooperates with the force arc block 22;

[0035] The vibration component achieves efficient dust cleaning of the filter bag 16 through the cooperation of mechanical vibration and pulse airflow. When in use, the driving motor 10 is controlled by the staff signal to drive the threaded rod to rotate repeatedly in different directions, so that the movable top block 9 moves back and forth along the axial direction of the threaded rod through the meshing effect. When the movable top block 9 contacts the stressed arc block 22, it pushes the movable plate body 15 to overcome the elastic force of the connecting spring 19 and move upward. The limiting plates 21 on both sides of the movable plate body 15 slide in the limiting groove to ensure that the vibration direction is vertical. Because the dust in ceramic production, such as clay and feldspar, has high water content and high viscosity, it is easy to absorb moisture and agglomerate. The pores of the filter bag 16 are blocked, and the adhesion between the dust layer and the filter bag 16 is destroyed by the vibration effect. During operation, dust is prevented from forming a dense hard shell on the surface of the filter bag 16, and the air permeability of the filter bag 16 is maintained. When the filter bag 16 is subjected to pulse dust removal, the pulse cleaning tube 11 can cooperate with the movable plate body 15. When the movable plate body 15 vibrates to the highest point, the pulse cleaning tube 11 sprays high-pressure airflow to the cleaning air hole 20. The airflow impacts the surface of the filter bag 16, making it easier for residual dust to fall off under the combined action of the airflow shear force and the vibration inertia force. The dust collecting box 7 is used to collect the fallen dust.

[0036] The filter cage components include: filter bags 16. A plurality of filter bags 16 are provided on the bottom surface of each movable plate body 15. The filter bags 16 are made of high-performance filter materials. This material has a microporous structure and can effectively intercept fine dust particles in the dust-laden airflow while ensuring good air permeability so that the filtered gas can pass smoothly. A plurality of bag cages 23 are provided inside the filter bag 16. The bag cage 23 serves as the supporting frame of the filter bag 16 and plays an important role in maintaining the shape of the filter bag 16 and preventing the filter bag 16 from deforming or collapsing under the action of the airflow. The bag cage 23 is connected by a connecting rod 24, and the connecting rod 24 connects each bag cage 23 into an organic whole, thereby enhancing the overall stability and rigidity of the filter cage component and enabling the filter cage component to better withstand the impact of airflow and the force of vibrating components. The side surface of the bag cage 23 is provided with four movable side bars 26, and the movable side bars 26 are made of lightweight, high-strength material and can move freely within a certain range. Elastic connecting ropes are provided between the side surfaces of the movable side bars 26 and the connection between the bag cage 23. The elastic connecting ropes are made of highly elastic and fatigue-resistant materials, such as rubber, with good elasticity and recovery properties. The elastic connecting ropes connect the movable side bars 26 to the bag cage 23 so that the movable side bars 26 can swing elastically within a certain range. When a lot of dust adheres to the surface of the filter bag 16, the swing of the movable side bars 26 can generate a certain vibration and impact force, which helps to shake off the dust on the surface of the filter bag 16 and play an auxiliary cleaning role. The surface of the bag cage 23 is also provided with four motor storage boxes 25. The motor storage box 25 adopts a sealed design, which can effectively prevent dust from leaking. To prevent dust and moisture from entering and protect the internal telescopic motor 27 from damage, the four motor storage boxes 25 are respectively matched with the four movable side bars 26. The telescopic motor 27 is set inside the motor storage box 25. The end of the output shaft of the telescopic motor 27 is connected to the side surface of the movable side bar 26. When the telescopic motor 27 is started, the output shaft can perform telescopic movement, thereby driving the movable side bar 26 to swing back and forth. An induction fan blade 28 is also provided on one side surface of the motor storage box 25. There is an electrical connection between the induction fan blade 28 and the telescopic motor 27;

[0037] The bag cage 23 is fixed to the bottom of the movable plate 15 through the connecting rod 24. The four movable side strips 26 are tightly attached to the inner wall of the filter bag 16 under the action of the elastic connecting rope to form a uniform support structure to prevent the filter bag 16 from collapsing. When the dust-laden airflow passes through the filter bag 16, the induction fan blades 28 on the side surface of the bag cage 23 are impacted by the airflow and rotate to monitor the airflow state in real time. When the dust thickness on the surface of the filter bag 16 reaches a certain level, the speed of the induction fan blades 28 will be reduced. At this time, it can be determined that there is too much dust adhesion, which triggers the telescopic motor 27 in the motor storage box 25 to automatically start, and the telescopic motor 27 drives The movable side strips 26 expand outward, increasing the diameter of the filter bag 16. The radial tensile stress generated destroys the adhesion between the dust layer and the filter bag 16. At the same time, the reciprocating motion of the movable side strips 26 generates slight vibrations, which promotes dust shedding, thereby performing a certain degree of dust cleaning during the working process to ensure the normal progress of the current work. After the dust cleaning is completed, the elastic connecting rope pulls the movable side strips 26 to reset, and the filter bag 16 returns to its original state. After the work is completed, the staff can be prompted by a signal to start the cleaning function, and the filter bag 16 can be cleaned more thoroughly by the vibration component.

[0038] The working principle of the present invention is:

[0039] In this solution, the efficient separation and anti-clogging recovery of dust in industrial ceramic production are achieved through the synergistic effect of the air ring component and the filter component. In the cyclone separation stage, the dust-laden airflow enters the cyclone separator through the air inlet pipe, and forms a high-speed rotating main vortex under the action of the tangential force. At this time, the multiple main air outlet branches of the top ring pipe pass through the top air outlet and spray a high-speed airflow with a downward angle of forty-five degrees to the dust-laden airflow into the separator, forming an aerodynamic buffer layer in the area opposite to the air inlet end. Large particles of dust are separated by the dual action of centrifugal force and the aerodynamic buffer layer. The dust particles in the ash hopper fall down quickly and fall into the ash hopper to achieve preliminary separation. When the main cyclone reaches the bottom of the cyclone separator, the auxiliary air outlet branch of the bottom ring pipe sprays air upward at a 30-degree elevation angle through the bottom air outlet, forming a high-speed, low-density air curtain layer at the bottom of the cone. This air curtain layer effectively prevents the return mixed flow in the ash hopper from carrying dust back into the main cyclone through particle interception and flow field isolation effects. At the same time, it lifts fine dust particles back to the separation area, ensuring a physical isolation zone between the ash hopper opening and the cylinder separation area, greatly improving the coarse particle separation efficiency and preventing secondary dust.

[0040] The dust-laden airflow after cyclone separation enters the bag dust collector through the transmission air duct and the transmission air duct for secondary filtration. The core of the filter assembly lies in the coordinated cleaning mechanism of the filter cage component and the vibration component. In the filter cage component, the filter bag is supported by the bag cage, and the four movable side bars are tightly attached to the inner wall of the filter bag under the action of the elastic connecting rope to form a uniform support structure to prevent the filter bag from collapsing. When the dust-laden airflow passes through the filter bag, the induction fan blades on the side surface of the bag cage are impacted by the airflow and rotate, and the airflow status is monitored in real time. When the dust thickness on the surface of the filter bag reaches the threshold, the speed of the induction fan blades decreases, triggering the telescopic motor in the motor storage box to start, driving the movable side bars to expand outward, increasing the diameter of the filter bag, generating radial tensile stress to destroy the adhesion of the dust layer, and generating slight vibration through reciprocating motion to promote dust shedding. After cleaning is completed, the elastic connecting rope pulls the movable side bars to reset, and the filter bag returns to its original state.

[0041] The vibrating component enhances the dust cleaning effect through the synergy of mechanical vibration and pulse airflow. The staff controls the drive motor through the signal to drive the threaded rod to rotate, so that the movable top block moves back and forth along the axial direction of the threaded rod. When the movable top block contacts the stressed arc block, it pushes the movable plate body to overcome the elastic force of the connecting spring and move upward. The limiting plates on both sides slide in the limiting groove to ensure that the vibration direction is vertical, destroying the adhesion between the dust layer and the filter bag, and preventing sticky dust from absorbing moisture and agglomerating. When the movable plate body vibrates to the highest point, the pulse cleaning pipe sprays high-pressure airflow to the surface of the filter bag through the cleaning air hole. The shear force of the airflow and the vibration inertia force work together to completely remove the residual dust to the dust collection box, achieving deep cleaning of the filter bag and maintaining air permeability.

[0042] This equipment effectively solves the problems of low industrial ceramic dust separation efficiency and easy clogging of filter bags through the aerodynamic flow field control of the air ring component and the intelligent cleaning mechanism of the filter component, and significantly improves the stability and resource utilization of the dust recovery system.

[0043] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A multi-stage dust filtration and recovery equipment for industrial ceramic material production, characterized in that: include: A support frame, wherein a cyclone separator is provided on the upper surface of the support frame, a bottom frame is provided on one side of the support frame, a bag dust collector is provided on the upper surface of the bottom frame, and a filter assembly is provided inside the bag dust collector; The filter assembly includes a filter cage component and a vibration component, and the vibration component includes: an isolation plate body, the isolation plate body is arranged at the inner center of the bag dust collector, a plurality of movable plates are arranged at the center of the isolation plate body, and force-bearing arc blocks are arranged at both ends of the movable plates. Additional side frames are arranged on both side surfaces of the bag dust collector, and movable top blocks are arranged on the upper surfaces of the additional side frames; The filter cage component includes: a filter bag, a plurality of filter bags are provided on the bottom surface of each movable plate body, a plurality of bag cages are provided inside the filter bag, the bag cages are connected by connecting rods, and the side surface of the bag cage is provided with four movable side strips; An air ring assembly is provided inside the cyclone separator, and the air ring assembly includes: a top ring tube and a bottom ring tube, both of which are sleeved on the outer surface of the cyclone separator, and a plurality of bottom exhaust fans are provided on the bottom surfaces of the top ring tube and the bottom ring tube, a plurality of main air outlet branches are provided inside the top ring tube, and a plurality of auxiliary air outlet branches are provided inside the bottom ring tube; The surface of the bag cage is further provided with four motor storage boxes, which are respectively matched with four movable side strips. A telescopic motor is provided inside the motor storage box, and the end of the output shaft of the telescopic motor is connected to a side surface of the movable side strip. An induction fan blade is also provided on one side surface of the motor storage box, and there is an electrical connection between the induction fan blade and the telescopic motor; An ash hopper is provided on the bottom surface of the cyclone separator, an air inlet pipe is provided on the side surface of the cyclone separator, a fan for assisting air intake is provided inside the air inlet pipe, a transmission air pipe is provided between the bag dust collector and the cyclone separator, and a dust collecting box is provided on the bottom surface of the bag dust collector.

2. The anti-clogging multi-stage filtration and recycling equipment for dust used in industrial ceramic material production according to claim 1, characterized in that: The top ring tube is located on the upper side of the outer surface of the cyclone separator, the bottom ring tube is located on the lower side of the outer surface of the cyclone separator, and a buffer arc plate is provided on the upper surface of the main air outlet branch pipe located in the opposite side area of ​​the air inlet end of the cyclone separator.

3. The anti-clogging multi-stage filtration and recovery equipment for dust used in industrial ceramic material production according to claim 2, characterized in that: A top air outlet is provided on a surface of one side of the main air outlet branch pipe located inside the cyclone separator, and a bottom air outlet is provided on a surface of one side of the auxiliary air outlet branch pipe located inside the cyclone separator.

4. The anti-clogging multi-stage filtration and recovery equipment for dust used in industrial ceramic material production according to claim 1, characterized in that: The upper surface of the movable plate body is provided with a plurality of cleaning air holes, and the inner side surface of the bag dust collector is provided with a plurality of pulse cleaning pipes matched with the movable plate body.

5. The anti-clogging multi-stage filtration and recovery equipment for dust used in industrial ceramic material production according to claim 4, characterized in that: Side connecting plates are provided on both side surfaces of the movable plate body, a plurality of connecting springs are provided on the bottom surface of the side connecting plates, the top surface of the connecting springs is connected to the upper surface of the isolation plate body, two limiting plates are provided on the upper surface of the movable plate body, and limiting grooves matching the limiting plates are opened inside the side walls of both sides of the bag dust collector.

6. The anti-clogging multi-stage filtration and recycling equipment for dust used in industrial ceramic material production according to claim 1, characterized in that: The upper surface of the cyclone separator is provided with a transmission air duct connected to one end of the bag dust collector, the one side surface of the bag dust collector is provided with a connecting air port connected to the other end of the transmission air duct, and the other side surface of the transmission air duct is provided with an air outlet pipe.

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