Dust removal device for pneumatic conveying equipment

Abstract

The application discloses a dust removal device for pneumatic conveying equipment and relates to the technical field of dust removal equipment.The dust removal device comprises a dust removal box, a conical box integrally formed through the bottom of the dust removal box, and a trapezoidal box fixedly arranged on the left side of the dust removal box; a plurality of dust removal filter cartridges are assembled in the dust removal box; a communication pipe at the left end of the dust removal filter cartridge is slidably inserted into a first square through hole, and a connecting shaft at the right end of the dust removal filter cartridge is slidably inserted into a second square through hole; four linkage shafts are rotatably arranged on the right side wall of the dust removal box, and eccentrically arranged Lai Luo triangles are fixedly sleeved to the middle portions of the linkage shafts; the Lai Luo triangles are movably matched with the adjacent four connecting shafts through a limiting mechanism; the dust removal device is characterized in that: the dust removal device is integrated with a structure, a composite filtering motion, a closed sealing structure and an automatic backwashing structure, and the structures are cooperatively used to improve the problems of uneven filtering, easy leakage and blockage and inconvenient maintenance of traditional dust removal equipment, and the dust removal device has the advantages of stable equipment operation, low energy consumption, excellent dust removal performance, adaptation to continuous operation conditions of pneumatic conveying and high practicality and popularization value.

Description

Technical Field

[0001] The present invention relates to the technical field of dust removal equipment, in particular to a dust removal device for pneumatic conveying equipment. Background Art

[0002] Pneumatic conveying technology is widely used in the field of powder and granular material conveying, and the supporting dust removal device is a core component to ensure clean operation of equipment and up-to-standard emission. Early dust removal equipment mostly adopted a single fixed filter screen dust removal structure, which is simple in structure but poor in adaptability. With the development of the industry, filter cartridge type dust removal equipment has gradually emerged, which improves the basic filtration effect and is widely used in pneumatic conveying working conditions. However, the existing filter cartridge dust removal equipment has relatively scattered structural design and low integration degree, which is difficult to form an integrated operation system of dust removal, dust discharge and purification, resulting in messy equipment layout.

[0003] At present, there are still many technical defects in the supporting dust removal devices for pneumatic conveying. The fixed filter cartridge has a limited filtration contact range, which is prone to filtration blind areas, resulting in low dust removal accuracy and efficiency. The sealing performance of the fitting gap at the through holes of the equipment is poor, which easily causes leakage of unpurified exhaust gas and insufficient environmental protection performance. Meanwhile, the traditional transmission structure is complex and has poor synchronism, the filter cartridge is prone to dust accumulation and blockage, and lacks an accurate aligned automatic backwashing structure, resulting in poor cleaning effect, high maintenance frequency, short service life of the filter cartridge, and it is difficult to meet the use requirement of long-time continuous and stable operation of pneumatic conveying equipment. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art, and propose a dust removal device for pneumatic conveying equipment.

[0005] In order to solve the problems existing in the prior art, the present invention adopts the following technical solution: A dust removal device for pneumatic conveying equipment comprises a dust removal box, wherein a conical box that is integrally communicated and formed is fixedly arranged on the bottom surface of the dust removal box, a trapezoidal box is fixedly arranged on the left side surface of the dust removal box, a plurality of uniformly arranged first square through holes and second square through holes are respectively arranged on the left and right side walls of the dust removal box, and a plurality of uniformly arranged dust removal filter cartridges are arranged in the dust removal box; A communicating pipe that is integrally communicated is fixedly arranged at the left end of the dust removal filter cartridge, the left end of the communicating pipe is slidably inserted into the first square through hole on the corresponding side, a connecting shaft is fixedly arranged at the right end of the dust removal filter cartridge, and the right end of the connecting shaft is slidably inserted into the second square through hole on the corresponding side; Four uniformly distributed linkage shafts are rotatably inserted through the right side wall of the dust removal box, an eccentrically arranged Reuleaux triangle is fixedly sleeved at the middle part of the linkage shaft, and the Reuleaux triangle is movably connected and matched with four adjacent connecting shafts through a limiting mechanism.

[0006] Preferably, an integrally formed air inlet pipe is fixedly installed in the middle of the top surface of the dust collector, an integrally formed dust outlet pipe is fixedly installed in the middle of the bottom surface of the conical box, and an integrally formed exhaust pipe is fixedly installed in the middle of the left side surface of the trapezoidal box.

[0007] Preferably, the outer surface of the dust removal filter element is provided with a plurality of evenly distributed U-shaped grooves, and a plurality of equidistantly distributed dust removal holes are provided in the U-shaped grooves. The dust removal holes are arranged in a conical structure with the diameter narrowing from the outside to the inside. A first partition is fixedly sleeved in the middle of the connecting pipe. The first partition slides against the left side wall of the dust collector and completely covers the corresponding first square through hole. A second partition is fixedly sleeved in the middle of the connecting shaft. The second partition slides against the right side wall of the dust collector and completely covers the corresponding second square through hole.

[0008] Preferably, a plurality of evenly distributed frame-shaped racks are fixedly provided on the right side wall of the dust collector, and the frame-shaped racks correspond one-to-one with the second square through holes. A planetary gear is fixedly sleeved in the middle of the connecting shaft, and the planetary gear meshes with the frame-shaped racks for transmission.

[0009] Preferably, the limiting mechanism includes a square frame and fixed rods. The square frame is slidably fitted on the outer side of the Leroy triangle. Fixed rods are fixedly installed in the middle of the four sides of the square frame. The outer end of the connecting shaft is rotatably inserted into the outer end of the corresponding fixed rod.

[0010] Preferably, a rectangular rod is fixedly provided at the outer end of one of the fixed rods on the square frame, a rectangular sleeve is slidably sleeved in the middle of the rectangular rod, and vertically distributed rectangular sliding rods are fixedly provided on the side of the rectangular sleeve. A rectangular sliding seat is slidably sleeved in the middle of the rectangular sliding rod, and the rectangular sliding seat is fixedly connected to the right side wall of the dust collector.

[0011] Preferably, a linkage gear is fixedly sleeved on the outer end of the linkage shaft, a fixed shaft is rotatably inserted into the right side wall of the dust collector, a fixed gear is fixedly sleeved on the middle part of the fixed shaft, and the fixed gear meshes with four linkage gears for transmission. A large-diameter pulley is fixedly sleeved on the outer end of the fixed shaft. A servo motor is fixedly installed on the right side of the front of the dust collector. A small-diameter pulley is fixedly sleeved on the end of the motor shaft of the servo motor. The small-diameter pulley is connected to the large-diameter pulley through a drive belt.

[0012] Preferably, a pair of through rectangular rings are fixedly arranged on the front and rear sides of the top of the trapezoidal box, and an L-shaped slide rod is slidably inserted inside the rectangular ring. A pair of long-shaft telescopic cylinders are fixedly installed on the front and rear sides of the trapezoidal box. The telescopic rod end of the long-shaft telescopic cylinder is fixedly connected to the top end of the corresponding L-shaped slide rod, and a driven shaft is rotatably inserted at the bottom end of the L-shaped slide rod.

[0013] Preferably, a pair of notched racks are fixedly provided on the left side wall of the dust collector, and a notched gear is fixedly sleeved on one end of the driven shaft. The notched gear meshes with the notched rack for transmission. A backwashing air pipe is fixedly provided on the other end of the driven shaft. A pair of backwashing nozzles are provided on the backwashing air pipe, and the backwashing nozzles correspond to the outer ports of the corresponding connecting pipes.

[0014] Preferably, a high-pressure air pump is fixedly installed on the top surface of the trapezoidal box, and a high-pressure air pipe is provided at the output end of the high-pressure air pump. The bottom end of the high-pressure air pipe penetrates the top wall of the trapezoidal box and extends to the backwash air pipe. A three-way connector is fixedly provided at the bottom end of the high-pressure air pipe, and the two ends of the three-way connector are rotatably connected to the air delivery end of the corresponding high-pressure air pipe.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention adopts an integrated, through-formed structure for components such as dust collection box, air intake pipe, and conical box, integrating the functions of waste gas introduction, filtration and purification, dust collection, and clean gas discharge; the overall operation process is smooth and seamless, requiring no additional splicing or assembly parts, greatly simplifying the overall structure of the equipment, reducing the space occupied by the equipment, and improving the overall assembly stability and regularity of the equipment.

[0016] 2. The present invention features a dust removal filter element with a U-shaped groove, combined with a tapered dust removal hole that is wider on the outside and narrower on the inside, which effectively increases the contact area of ​​dust-laden exhaust gas and accurately intercepts fine dust particles; at the same time, the filter element can realize a combination of rotation and reciprocating motion, conforming to the exhaust gas flow path in all directions, avoiding local filtration blind spots, and significantly improving the exhaust gas purification accuracy and overall dust removal efficiency.

[0017] 3. This invention uses connecting pipes at both ends of the filter element and connecting shafts to slide into the through holes of the housing, combined with two sets of partitions to fully cover and seal the structure; while meeting the reciprocating and rotating adjustment needs of the filter element, it completely seals the gaps in the through holes, ensuring a sealed filtration environment inside the dust collector housing, effectively preventing the leakage of unpurified waste gas, and ensuring the environmental friendliness and dust removal effectiveness of the operation.

[0018] 4. This invention adopts a single servo motor in conjunction with a pulley and gear set linkage structure, which can synchronously drive multiple sets of Leylow triangle transmission mechanisms to achieve synchronous driving of multiple filter elements by a single power source; it greatly simplifies the transmission structure, reduces the power configuration cost of the equipment, and at the same time ensures the consistency of movement of multiple filter elements, with compact transmission and smooth operation without jamming.

[0019] 5. This invention features an intermittently aligned high-pressure backwashing mechanism. Through the cooperation of notched gears and racks, the nozzle is precisely aligned with the filter cartridge port, and the high-pressure airflow reverses the flow from the inside to the outside to flush away accumulated dust. This can remove dust adhering to the surface of the filter cartridge without dead angles, effectively restore the filter cartridge's filtration performance, reduce the frequency of manual maintenance, and significantly extend the overall service life of the filter cartridge and the equipment.

[0020] In summary, this invention effectively solves the defects of traditional dust removal equipment, such as uneven filtration, easy leakage, easy clogging, and cumbersome maintenance, through the synergistic cooperation of integrated structure, composite filtration motion, sealed structure and automated backwashing structure. The equipment is stable in operation, has low energy consumption and good dust removal effect, and is suitable for long-term continuous operation scenarios of pneumatic conveying equipment. It has extremely high practicality and promotion value. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention; Figure 3 This is a schematic diagram of the overall structure of the dust collector box of the present invention; Figure 4 This is another perspective schematic diagram of the overall structure of the dust collector box of the present invention; Figure 5 For the present invention Figure 3 Explosion-proof diagram of the structure; Figure 6 This is a schematic cross-sectional view of the dust collector structure of the present invention; Figure 7 For the present invention Figure 6 Explosion-proof diagram of the structure; Figure 8 This is a schematic cross-sectional view of the dust removal filter element structure of the present invention; Figure 9 This is a schematic diagram of the overall structure of the trapezoidal box of the present invention; Figure 10 This is an exploded view of the overall structure of the trapezoidal box of the present invention; In the diagram, the numbers represent: 100, dust collector; 101, conical box; 102, air inlet pipe; 103, dust outlet pipe; 104, trapezoidal box; 105, exhaust pipe; 106, first square through hole; 107, second square through hole; 200, dust collector filter element; 201, U-shaped groove; 202, dust collection hole; 203, connecting pipe; 204, first partition plate; 205, connecting shaft; 206, second partition plate; 207, planetary gear; 208, frame rack; 300, linkage shaft; 301, Reno triangle; 302, square frame; 303, fixing rod; 304, rectangular... 305. Rectangular sleeve; 306. Rectangular slide bar; 307. Rectangular slide block; 308. Linkage gear; 400. Fixed shaft; 401. Fixed gear; 402. Large diameter pulley; 403. Servo motor; 404. Small diameter pulley; 405. Drive belt; 500. Rectangular ring; 501. L-shaped slide bar; 502. Long shaft telescopic cylinder; 503. Driven shaft; 504. Notched gear; 505. Notched rack; 506. Backwash air pipe; 507. Backwash nozzle; 508. High-pressure air pump; 509. High-pressure air pipe; 510. T-connector. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0023] Example: This example provides a dust removal device for pneumatic conveying equipment. See [link to example]. Figures 1 to 10 Specifically, the system includes a dust collector 100, an integrally formed air inlet pipe 102 fixedly installed in the middle of the top surface of the dust collector 100, an integrally formed conical box 101 fixedly installed in the bottom surface of the dust collector 100, an integrally formed dust discharge pipe 103 fixedly installed in the middle of the bottom surface of the conical box 101, a trapezoidal box 104 fixedly installed in the left side of the dust collector 100, and an integrally formed exhaust pipe 105 fixedly installed in the middle of the left side of the trapezoidal box 104. The dust collector 100, air inlet pipe 102, conical box 101, dust discharge pipe 103, trapezoidal box 104 and exhaust pipe 105 are integrally connected, with a high degree of structural integration. It can stably introduce dust-laden waste gas, centrally filter and purify it and discharge clean gas. At the same time, it can realize centralized dust collection and unified emission. The overall layout of the equipment is neat and the operation process is smooth. The dust collector 100 has several evenly arranged first square through holes 106 and second square through holes 107 on its left and right side walls, respectively. The dust collector 100 contains several evenly arranged dust collector filter elements 200. The outer surface of each dust collector filter element 200 has several evenly distributed U-shaped grooves 201. Each U-shaped groove 201 contains several equidistantly distributed dust collection holes 202. The dust collection holes 202 are designed with a tapered structure where the diameter tapers from the outside to the inside. The dust collector 100 has multiple sets of first square through holes 106 and second square through holes 107 matched with the dust collector filter elements 200. The combination of the U-shaped grooves 201 and the tapered dust collection holes 202 in the dust collector filter elements 200 increases the contact area with exhaust gas, accurately intercepts dust particles, improves exhaust gas filtration accuracy and dust removal efficiency, and results in superior filtration performance. A through-hole connecting pipe 203 is fixedly installed at the left end of the dust collector filter element 200. The left end of the connecting pipe 203 is slidably inserted into the first square through hole 106 on the corresponding side. A first partition 204 is fixedly sleeved in the middle of the connecting pipe 203. The first partition 204 slides against the left side wall of the dust collector box 100 and completely covers the corresponding first square through hole 106. The connecting pipe 203 at the left end of the dust collector filter element 200 slides into the first square through hole 106. With the first partition 204 fully covering and sealing, it can ensure the movement and adjustment of the filter element while preventing dust-laden exhaust gas from leaking out from the gaps in the through hole, effectively ensuring the sealed filtration environment of the internal cavity of the dust collector box 100. A connecting shaft 205 is fixedly installed at the right end of the dust collector filter element 200. The right end of the connecting shaft 205 is slidably inserted into the second square through hole 107 on the corresponding side. A second partition 206 is fixedly sleeved in the middle of the connecting shaft 205. The second partition 206 slides against the right side wall of the dust collector box 100 and completely covers the corresponding second square through hole 107. The connecting shaft 205 at the right end of the dust collector filter element 200 is slidably inserted into the second square through hole 107. The second partition 206 achieves full coverage and sealing. While meeting the needs of the filter element's reciprocating and rotating adjustment, it seals the gap in the right through hole, maintains the equipment's filtration sealing, and prevents the leakage of unpurified exhaust gas. Four evenly distributed linkage shafts 300 are rotatably inserted into the right side wall of the dust collector 100. An eccentrically distributed Reuleaux triangle 301 is fixedly sleeved in the middle of the linkage shaft 300. The Reuleaux triangle 301 is movably connected and engaged with the four adjacent connecting shafts 205 through a limiting mechanism. The eccentric assembly of the four linkage shafts 300 with the Reuleaux triangle 301 and the matching of the connecting shafts 205 through the limiting mechanism can convert the circumferential rotation of the linkage shafts 300 into regular reciprocating driving power, providing a stable transmission basis for the compound motion of the dust collector filter element 200. The transmission structure is compact and reliable. Several evenly distributed frame-shaped racks 208 are fixedly installed on the right side wall of the dust collector 100. The frame-shaped racks 208 correspond one-to-one with the second square through holes 107. A planetary gear 207 is fixedly sleeved in the middle of the connecting shaft 205. The planetary gear 207 meshes with the frame-shaped racks 208 for transmission. The meshing of the frame-shaped racks 208 with the planetary gear 207 of the connecting shaft 205 can drive the dust collector filter element 200 to rotate autonomously when the connecting shaft 205 moves back and forth. The reciprocating motion forms a compound motion mode, which greatly expands the contact range between the filter element and the exhaust gas and enhances the dust removal effect.

[0024] In the specific implementation process, such as Figure 5 and Figure 7 As shown, the limiting mechanism includes a square frame 302 and a fixing rod 303. The square frame 302 is slidably sleeved on the outside of the Leroy triangle 301. The fixing rod 303 is fixedly installed in the middle of the four sides of the square frame 302. The outer end of the connecting shaft 205 is rotatably inserted into the outer end of the corresponding fixing rod 303. A rectangular rod 304 is fixedly installed at the outer end of one of the fixed rods 303 on the square frame 302. A rectangular sleeve 305 is slidably fitted in the middle of the rectangular rod 304. A vertically distributed rectangular slide rod 306 is fixedly installed on the side of the rectangular sleeve 305. A rectangular slide block 307 is slidably fitted in the middle of the rectangular slide rod 306. The rectangular slide block 307 is fixedly connected to the right side wall of the dust collector 100. The square frame 302 and the fixed rod 303 constitute a limiting structure. Together with the rectangular rod 304, the rectangular sleeve 305, the rectangular slide rod 306 and the rectangular slide block 307, the movement trajectory of the square frame 302 can be precisely constrained to prevent transmission deviation and jamming, ensure the stability and regularity of the filter element movement, and improve the smoothness of equipment operation. A linkage gear 308 is fixedly sleeved on the outer end of the linkage shaft 300. A fixed shaft 400 is rotatably inserted into the right side wall of the dust collector 100. A fixed gear 401 is fixedly sleeved in the middle of the fixed shaft 400. The fixed gear 401 meshes with four linkage gears 308 respectively. The fixed gear 401 of the fixed shaft 400 meshes with multiple sets of linkage gears 308, which can realize the synchronous drive of four linkage shafts 300 by a single power source, simplifying the equipment transmission structure, reducing the configuration cost of power components, and ensuring the synchronous movement of multiple filter elements, resulting in good equipment operation consistency. A large-diameter pulley 402 is fixedly sleeved on the outer end of the fixed shaft 400. A servo motor 403 is fixedly installed on the right side of the front of the dust collection box 100. A small-diameter pulley 404 is fixedly sleeved on the end of the motor shaft of the servo motor 403. The small-diameter pulley 404 is connected to the large-diameter pulley 402 through the drive belt 405. The servo motor 403 is driven by the small-diameter pulley 404, the drive belt 405 and the large-diameter pulley 402, which can realize flexible speed reduction transmission, accurately control the transmission speed and power output, adapt to the power requirements of the composite motion of the filter element, and achieve smooth transmission, low noise and strong controllability of power output.

[0025] In the specific implementation process, such as Figure 9 and Figure 10 As shown, a pair of through-type rectangular rings 500 are fixedly installed on the front and rear sides of the top of the trapezoidal box 104. An L-shaped slide rod 501 is slidably inserted inside the rectangular ring 500. A pair of long-shaft telescopic cylinders 502 are fixedly installed on the front and rear sides of the trapezoidal box 104. The telescopic rod end of the long-shaft telescopic cylinder 502 is fixedly connected to the top end of the corresponding L-shaped slide rod 501. The driven shaft 503 is rotatably inserted at the bottom end of the L-shaped slide rod 501. The rectangular rings 500 and L-shaped slide rods 501, together with the long-shaft telescopic cylinders 502, reciprocate and slide, driving the driven shaft 503 to move. This provides a stable motion basis for the intermittent adjustment of the subsequent backwashing structure. The structure slides smoothly and has good guidance, which can accurately match the backwashing alignment operation requirements. A pair of notched racks 505 are fixedly installed on the left side wall of the dust collection box 100. A notched gear 504 is fixedly sleeved on one end of the driven shaft 503. The notched gear 504 meshes with the notched rack 505 for transmission. A backwashing air pipe 506 is fixedly installed on the other end of the driven shaft 503. A pair of backwashing nozzles 507 are installed on the backwashing air pipe 506. The backwashing nozzles 507 correspond to the outer ports of the corresponding connecting pipes 203. The notched gear 504 meshes with the notched rack 505 to realize the intermittent rotation of the driven shaft 503, which drives the backwashing air pipe 506 and the backwashing nozzles 507 to adjust their angles. This allows the nozzles to be precisely aligned with the ports of each connecting pipe 203, achieving full coverage backwashing without dead angles and cleaning without blind spots. A high-pressure air pump 508 is fixedly installed on the top surface of the trapezoidal box 104. A high-pressure air pipe 509 is provided at the output end of the high-pressure air pump 508. The bottom end of the high-pressure air pipe 509 penetrates the top wall of the trapezoidal box 104 and extends to the backwash air pipe 506. A three-way connector 510 is fixedly provided at the bottom end of the high-pressure air pipe 509. The two ends of the three-way connector 510 are rotatably connected to the air delivery end of the corresponding high-pressure air pipe 509. The high-pressure air pump 508 and the high-pressure air pipe 509, together with the three-way connector 510, can divert the high-pressure airflow to the backwash air pipes 506 on both sides, and can output high-pressure and high-speed airflow to backwash dust from the inside of the filter element, thoroughly remove dust accumulated on the surface of the filter element, effectively restore the filtration performance of the filter element, and extend the service life of the filter element.

[0026] It should be noted that the specific working principle and operation process of this embodiment are as follows: Before the equipment begins its formal dust removal operation, the dust discharge pipe 103 is closed and the bottom dust discharge channel of the dust collector 100 is sealed to prevent unfiltered exhaust gas from leaking out directly. The dust-laden exhaust gas generated by the pneumatic conveying equipment is uniformly fed into the internal cavity of the dust collector 100 through the integrally formed air inlet pipe 102 in the middle of the top surface of the dust collector 100, thus completing the centralized introduction of exhaust gas.

[0027] While the exhaust gas is being filtered, the servo motor 403 is started to provide power output. The motor shaft of the servo motor 403 drives the small-diameter pulley 404 to rotate synchronously at high speed. The small-diameter pulley 404 drives the large-diameter pulley 402, the fixed shaft 400, and the fixed gear 401 fixedly mounted in the middle of the fixed shaft 400 to rotate synchronously through friction transmission via the drive belt 405 mounted on the outside. This achieves primary power transmission and speed reduction adaptation.

[0028] In the rotating state, the fixed gear 401 meshes with the linkage gear 308 fixedly sleeved on the outer end of the four linkage shafts 300, and synchronously drives the four sets of linkage gears 308, linkage shafts 300 and the Reilly triangle 301 eccentrically fixed in the middle of the linkage shafts 300 to rotate synchronously in a circular motion; a square frame 302 is slidably sleeved on the outside of the Reilly triangle 301, and the two form a motion limiting cooperation relationship. During the continuous rotation of the Reilly triangle 301, it can drive the square frame 302 to perform reciprocating cyclic motion along the rectangular frame trajectory.

[0029] During the movement of the square frame 302, the rectangular rod 304 fixed in the middle of its side slides along the inside of the rectangular sleeve 305, while the rectangular slide rod 306 vertically fixed on the side of the rectangular sleeve 305 slides along the inside of the rectangular slide block 307 fixed to the right side wall of the dust collector 100. Through this limiting and guiding structure, the movement trajectory of the square frame 302 is effectively constrained, ensuring the stability and regularity of the overall movement and avoiding movement deviation and jamming.

[0030] At the same time, the fixing rods 303 fixed in the middle of the four sides of the square frame 302 move synchronously with the square frame 302. The connecting shaft 205, which is rotatably inserted at the outer end of the fixing rod 303, is driven synchronously, causing the connecting shaft 205 to move back and forth along the trajectory of the second square through hole 107 on the right side wall of the dust collector 100. During this process, the planetary gear 207 fixedly sleeved in the middle of the connecting shaft 205 and the frame-shaped rack 208 fixed on the right side wall of the dust collector 100 continuously mesh and transmit power, causing the planetary gear 207 to rotate, thereby driving the connecting shaft 205, the dust collector filter element 200 and the connecting pipe 203 fixed at the left end of the dust collector filter element 200 to rotate and revolve synchronously.

[0031] The connecting pipe 203 at the left end of the dust collector filter element 200 is slidably inserted into the first square through hole 106 on the left side wall of the dust collector box 100. The first partition 204 fixed in the middle of the connecting pipe 203 always slides against the inner left side wall of the dust collector box 100 and completely covers the first square through hole 106. The second partition 206 fixed in the middle of the connecting shaft 205 always slides against the inner right side wall of the dust collector box 100 and completely covers the second square through hole 107. This ensures the sealing of the dust collector box 100 cavity throughout the process, preventing dust-laden exhaust gas from leaking out directly without filtration. Finally, the multiple sets of dust collector filter elements 200 as a whole make stable planetary rotation along a rectangular trajectory, which greatly expands the contact range between the dust collector filter element 200 and the dust-laden exhaust gas and improves the dust removal and filtration efficiency.

[0032] Dust-laden exhaust gas sent into the dust collector 100 is filtered by passing through the uniformly distributed dust removal holes 202 on the outer surface of the dust collector filter element 200 under air pressure. The dust removal holes 202 adopt a conical structure with the pore size narrowing from the outside to the inside, which can effectively intercept dust particles in the exhaust gas and make the dust adhere and remain on the outer surface of the dust collector filter element 200. The filtered clean air enters the internal cavity of the dust collector filter element 200 and is introduced into the trapezoidal box 104 on the left side of the dust collector 100 through the connecting pipe 203. Finally, it is discharged from the equipment through the exhaust pipe 105 integrally formed in the middle of the left side of the trapezoidal box 104, completing the entire process of exhaust gas purification.

[0033] After the equipment has been running for a long time, a lot of dust will accumulate on the outer surface of the dust collector filter element 200. It is necessary to start the backwashing mode to clean the dust collector filter element 200. During operation, the long shaft telescopic cylinder 502 installed on the front and rear sides of the trapezoidal box 104 is activated. The telescopic rod of the long shaft telescopic cylinder 502 drives the L-shaped slide rod 501, which is slidably inserted inside the corresponding rectangular ring 500, to slide up and down. The driven shaft 503 is rotatably inserted at the bottom end of the L-shaped slide rod 501. The notched gear 504 fixedly sleeved at one end of the driven shaft 503 and the notched rack 505 fixed on the left side wall of the dust collector box 100 form a meshing engagement.

[0034] During the up-and-down sliding of the L-shaped slide bar 501, the notched gear 504 and the notched rack 505 alternately mesh and disengage: during the meshing stage, the driven shaft 503 rotates, and during the disengagement stage, the driven shaft 503 remains stationary, thus forming an intermittent rotation effect in a cycle; the driven shaft 503 synchronously drives the backwash air pipe 506 fixed at its other end to perform intermittent angle adjustment, so that the two sets of backwash nozzles 507 on the backwash air pipe 506 can accurately align with the outer ports of the connecting pipes 203 at different positions, achieving full coverage and alignment flushing.

[0035] After alignment, the high-pressure air pump 508 installed on the top surface of the trapezoidal box 104 is started. The high-pressure airflow output by the high-pressure air pump 508 is transported through the high-pressure air pipe 509. After being diverted by the three-way connector 510 installed at the bottom of the high-pressure air pipe 509, it is introduced into the backwash air pipes 506 on both sides. The high-pressure airflow is finally sprayed into the connecting pipe 203 at high speed through the backwash nozzle 507, and is flushed outward from the inside of the dust filter element 200 to completely blow off the dust particles attached to the outer surface of the dust filter element 200. The dust falls to the bottom of the dust collection box 100 and accumulates in the conical box 101.

[0036] After the dust filter element 200 is backwashed and cleaned, the dust discharge pipe 103, which is integrally formed in the middle of the bottom surface of the conical box 101, is opened. The accumulated dust is discharged to the outside of the equipment through the dust discharge pipe 103 under the action of gravity and the air pressure inside the equipment, thus completing the cycle operation of dust removal, dust filter element 200 cleaning, and dust discharge.

[0037] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A dust removal device for pneumatic conveying equipment, comprising a dust collection box (100), characterized in that: The bottom surface of the dust collector (100) is fixedly provided with an integrally formed conical box (101), the left side surface of the dust collector (100) is fixedly provided with a trapezoidal box (104), the left and right side walls of the dust collector (100) are respectively provided with a plurality of uniformly arranged first square through holes (106) and second square through holes (107), and a plurality of uniformly arranged dust collector filter elements (200) are provided inside the dust collector (100). The dust filter element (200) has an integrally connected connecting pipe (203) fixedly installed at the left end. The left end of the connecting pipe (203) is slidably inserted into the first square through hole (106) on the corresponding side. The dust filter element (200) has a connecting shaft (205) fixedly installed at the right end. The right end of the connecting shaft (205) is slidably inserted into the second square through hole (107) on the corresponding side. The right side wall of the dust collector (100) is rotatably fitted with four evenly distributed linkage shafts (300). The middle part of the linkage shaft (300) is fixedly fitted with an eccentrically distributed Rell's triangle (301). The Rell's triangle (301) is movably connected to the four adjacent connecting shafts (205) through a limiting mechanism.

2. The dust removal device for pneumatic conveying equipment according to claim 1, characterized in that: An integrally formed air inlet pipe (102) is fixedly installed in the middle of the top surface of the dust collector (100), an integrally formed dust discharge pipe (103) is fixedly installed in the middle of the bottom surface of the cone-shaped box (101), and an integrally formed exhaust pipe (105) is fixedly installed in the middle of the left side surface of the trapezoidal box (104).

3. The dust removal device for pneumatic conveying equipment according to claim 1, characterized in that: The outer surface of the dust removal filter element (200) is provided with a number of uniformly distributed U-shaped grooves (201), and a number of equally distributed dust removal holes (202) are provided in the grooves of the U-shaped grooves (201). The dust removal holes (202) are provided with a conical structure with the diameter shrinking from the outside to the inside. The middle part of the connecting pipe (203) is fixedly fitted with a first partition (204), the first partition (204) slides against the left side wall of the dust collector (100) and completely covers the corresponding first square through hole (106), the middle part of the connecting shaft (205) is fixedly fitted with a second partition (206), the second partition (206) slides against the right side wall of the dust collector (100) and completely covers the corresponding second square through hole (107).

4. A dust removal device for pneumatic conveying equipment according to claim 1, characterized in that: The right side wall of the dust collector (100) is fixedly provided with several evenly distributed frame-shaped racks (208), and the frame-shaped racks (208) correspond one-to-one with the second square through holes (107). The middle part of the connecting shaft (205) is fixedly fitted with a planetary gear (207), and the planetary gear (207) meshes with the frame-shaped racks (208) for transmission.

5. A dust removal device for pneumatic conveying equipment according to claim 1, characterized in that: The limiting mechanism includes a square frame (302) and a fixing rod (303). The square frame (302) is slidably sleeved on the outer side of the Leroy triangle (301). The fixing rod (303) is fixedly installed in the middle of the four sides of the square frame (302). The outer end of the connecting shaft (205) is rotatably inserted into the outer end of the corresponding fixing rod (303).

6. A dust removal device for pneumatic conveying equipment according to claim 5, characterized in that: A rectangular rod (304) is fixedly installed at the outer end of one of the fixed rods (303) on the square frame (302). A rectangular sleeve (305) is slidably fitted in the middle of the rectangular rod (304). A rectangular slide rod (306) is fixedly installed on the side of the rectangular sleeve (305). A rectangular slide block (307) is slidably fitted in the middle of the rectangular slide rod (306). The rectangular slide block (307) is fixedly connected to the right side wall of the dust collection box (100).

7. A dust removal device for pneumatic conveying equipment according to claim 1, characterized in that: The outer end of the linkage shaft (300) is fixedly fitted with a linkage gear (308), the right side wall of the dust collector (100) is rotatably inserted with a fixed shaft (400), the middle part of the fixed shaft (400) is fixedly fitted with a fixed gear (401), and the fixed gear (401) meshes and drives with four linkage gears (308) respectively. A large-diameter pulley (402) is fixedly sleeved on the outer end of the fixed shaft (400). A servo motor (403) is fixedly installed on the right side of the front of the dust collector (100). A small-diameter pulley (404) is fixedly sleeved on the end of the motor shaft of the servo motor (403). The small-diameter pulley (404) is connected to the large-diameter pulley (402) through a drive belt (405).

8. A dust removal device for pneumatic conveying equipment according to claim 1, characterized in that: A pair of through rectangular rings (500) are fixedly arranged on the front and rear sides of the top of the trapezoidal box (104). An L-shaped slide rod (501) is slidably inserted inside the rectangular ring (500). A pair of long-shaft telescopic cylinders (502) are fixedly installed on the front and rear sides of the trapezoidal box (104). The telescopic rod end of the long-shaft telescopic cylinder (502) is fixedly connected to the top end of the corresponding L-shaped slide rod (501). A driven shaft (503) is rotatably inserted at the bottom end of the L-shaped slide rod (501).

9. A dust removal device for pneumatic conveying equipment according to claim 8, characterized in that: A pair of notched racks (505) are fixedly installed on the left side wall of the dust collector (100). A notched gear (504) is fixedly sleeved on one end of the driven shaft (503). The notched gear (504) meshes with the notched rack (505) for transmission. A backwashing air pipe (506) is fixedly installed on the other end of the driven shaft (503). A pair of backwashing nozzles (507) are installed on the backwashing air pipe (506). The backwashing nozzles (507) correspond to the outer ports of the corresponding connecting pipes (203).

10. A dust removal device for pneumatic conveying equipment according to claim 9, characterized in that: A high-pressure air pump (508) is fixedly installed on the top surface of the trapezoidal box (104). A high-pressure air pipe (509) is provided at the output end of the high-pressure air pump (508). The bottom end of the high-pressure air pipe (509) penetrates the top wall of the trapezoidal box (104) and extends to the backwash air pipe (506). A three-way connector (510) is fixedly provided at the bottom end of the high-pressure air pipe (509). The two ends of the three-way connector (510) are respectively rotatably connected to the air delivery end of the corresponding high-pressure air pipe (509).

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