An intelligent control system for industrial dust collectors

Abstract

The present invention discloses an intelligent control system for an industrial dust collector, which relates to industrial dust removal technology, including a dust collection box, wherein a pulse dust removal mechanism is installed in the dust collection box, and a mounting top plate is fixed in the dust collection box, wherein multiple dust collection bags are provided on the mounting top plate, and multiple nodule crushing mechanisms corresponding to the dust collection bags are installed on the mounting top plate, and multiple bottom arc parts are circumferentially installed at the bottom of the dust collection bag, and the nodule crushing mechanisms are connected to the bottom arc parts; the present invention provides an intelligent control system for an industrial dust collector, wherein a dust-laden airflow passes through the dust collection bag from bottom to top, and during cleaning, high-speed gas is ejected into the dust collection bag by the pulse dust collection mechanism to eject the wood chips remaining on the dust collection bag, and before cleaning, the bottom arc part of the bottom is driven to contract by the nodule crushing mechanism, thereby contracting the bottom of the dust collection bag and crushing the wood chip nodules formed at the bottom of the dust collection bag, thereby ensuring the dust removal efficiency of the dust collection bag and preventing the nodules from continuing to grow.

Description

Technical Field

[0001] The present invention relates to industrial dust removal technology, and in particular to an intelligent control system for an industrial dust collector. Background Art

[0002] In the industrial production and processing of wood, dust pollution is an issue that cannot be ignored. It not only affects the working environment and harms the health of employees, but also poses a threat to the surrounding environment and the sustainable development of enterprises. The dust generated during the wood processing process mainly includes sawdust, wood chips and sanding dust, which have the characteristics of small particle size, light weight and long suspension time. They are easy to diffuse into the air and form large-scale pollution. For this reason, bag dust collectors are often used to collect and clean the dust generated during wood processing. Bag dust collectors are commonly used dust removal equipment in the wood processing industry. They use filter bags to filter the dust-laden airflow. The dust is trapped on the surface of the filter bag, and the clean gas is discharged through the filter bag.

[0003] For example, the patent with the authorization announcement number CN117839334B and the authorization announcement date May 28, 2024, entitled "A Uniform Filtering Bag Dust Collector", relates to the technical field of dust removal and environmental protection equipment, and specifically discloses a uniform filtering bag dust collector, two symmetrically arranged dust collection boxes, the lower end of the dust collection box is provided with an ash hopper, the upper end of the dust collection box is provided with a horizontal partition, the horizontal partition is provided with a rectangular array of filter element assembly cylinders, the filter element assembly cylinder is fixedly provided with a cage-type bag filter element, and the dust collection box is provided with a useful The driving mechanism is used to drive all filter element assembly cylinders to rotate; an air outlet channel is provided at the upper end of each dust collector box, and an air inlet pipe is provided below the two dust collector boxes, and the upper end of the air inlet pipe is connected with a diverter extending into the lower ends of the two dust collector boxes; the uniform filtering bag dust collector disclosed in the present invention not only effectively solves the problem that the bag filter elements are more easily damaged due to concentrated erosion of dust airflow, thereby improving the service life of the entire dust collector, but also realizes that all cage-type bag filter elements can filter the dust gas efficiently and evenly, thereby improving the filtering effect of the entire dust collector.

[0004] Another example is a patent with authorization announcement number CN114832523B and authorization announcement date July 4, 2023, entitled a dust cleaning device for a bag dust collector, comprising a bag mechanism and a dust cleaning device arranged inside an outer box, the bag mechanism comprising a filter bag and an expansion ring, the top and bottom of the filter bag are connected to the outer box; the expansion ring is a circular ring structure with a thinner middle and is slidably installed inside the filter bag; the dust cleaning device comprises a lifting frame and an injection assembly, the lifting frame is connected to the outer box through a lifting mechanism, the injection assembly comprises a baffle ring, an injection mechanism and two dust removal rings, the baffle ring is sleeved on the outside of the filter bag and fixed on the lifting frame, the two dust removal rings are both sleeved on the filter bag and fixed on the top and bottom of the inner side of the baffle ring respectively, the dust removal ring on the top of the baffle ring tightens the filter bag to the middle of the expansion ring; the injection mechanism is arranged on the baffle ring. The present invention first disperses the dust clusters on the surface of the bag and then removes them by wind force, which can effectively remove the dust accumulated on the bag and ensure the dust removal effect of the bag dust collector.

[0005] The shortcoming of the existing technology is that the powder generated during wood processing has a certain water content, which easily forms sawdust nodules at the position where the dust-laden airflow just contacts the bag. The pulse jet cleaning method is difficult to destroy the sawdust nodules, which will also reduce the filtering efficiency of the bag. In the long run, it will also increase the load of the bag and affect the aperture of the bag. Summary of the Invention

[0006] The purpose of the present invention is to provide an intelligent control system for an industrial dust collector to solve the above-mentioned deficiencies in the prior art.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] An intelligent control system for an industrial dust collector includes a dust box, a pulse dust removal mechanism installed in the dust box, a mounting top plate fixed in the dust box, a plurality of dust bags provided on the mounting top plate, a plurality of nodule crushing mechanisms corresponding to the dust bags installed on the mounting top plate, a plurality of bottom arc portions circumferentially installed at the bottom of the dust bag, and the nodule crushing mechanisms connected to the bottom arc portions;

[0009] Before pulse dust removal, the nodule crushing mechanism drives the bottom arc to contract so as to crush the wood chip nodules at the bottom of the dust bag.

[0010] The above-mentioned intelligent control system for an industrial dust collector has a dust outlet pipe installed at the bottom of the dust box, an air inlet pipe connected to the lower side of the dust box side wall, and an air outlet pipe connected to the upper side of the dust box side wall.

[0011] In the above-mentioned intelligent control system for an industrial dust collector, a dust concentration sensor is installed in the dust removal box, and the dust concentration sensor is used to detect the dust concentration in the dust removal box in real time.

[0012] The above-mentioned intelligent control system for an industrial dust collector has a plurality of through holes corresponding to the dust bags on the mounting top plate, the dust bags pass through the through holes, and the mounting top plate is located on the upper side of the dust bags.

[0013] In the above-mentioned intelligent control system for an industrial dust collector, the pulse dust removal mechanism includes a plurality of air injection pipes, and the air injection pipes are arranged in a one-to-one correspondence with the dust removal bags and are located above the dust removal bags.

[0014] In the above-mentioned intelligent control system for an industrial dust collector, a plurality of top arc portions corresponding to the bottom arc portions are circumferentially installed on the upper inner wall of the dust bag, and the bottom ends of the top arc portions are connected to the bottom arc portions via an inner support shaft.

[0015] In the above-mentioned intelligent control system for an industrial dust collector, the outer diameters of the top arc portion and the bottom arc portion are the same, and both the top arc portion and the bottom arc portion are fitted on the inner side wall of the dust removal bag.

[0016] The above-mentioned intelligent control system for an industrial dust collector, the nodule crushing mechanism includes a plurality of annular limiting grooves corresponding to the through holes on the mounting top plate, the annular limiting grooves are located outside the through holes, an annular ring is rotatably installed in the annular limiting groove, a plurality of sliding shafts are horizontally slidably installed on the annular ring, a connecting block is installed on the top arc portion, the connecting block passes through the dust bag, and the connecting block is rotatably connected to the sliding shaft.

[0017] The above-mentioned intelligent control system for industrial dust collectors, the nodule crushing mechanism also includes a plurality of drive grooves opened on the mounting top plate, the drive grooves are circumferentially arranged outside the annular limit groove, and a sliding rod is formed at the end of the sliding shaft away from the dust bag, and the bottom of the sliding rod is slidably installed in the drive groove.

[0018] The above-mentioned intelligent control system for an industrial dust collector has an outer gear ring fixed on the top of the annular ring, and multiple racks are slidably installed on the side wall of the dust collector. Multiple outer gear rings on the same row are engaged with the same rack, and multiple racks are fixed together. A driving member drives the rack to slide horizontally to drive the outer gear ring to rotate.

[0019] In the above technical solution, the present invention provides an intelligent control system for an industrial dust collector, including a pulse dust removal mechanism, a nodule crushing mechanism and a dust bag. The dust-laden airflow passes through the dust bag from bottom to top. During cleaning, high-speed gas is ejected into the dust bag through the pulse dust removal mechanism to eject the wood chips remaining on the dust bag. Before cleaning, the nodule crushing mechanism drives the bottom arc portion of the bottom to contract, thereby contracting the bottom of the dust bag and crushing the wood chip nodules formed at the bottom of the dust bag, thereby ensuring the dust removal efficiency of the dust bag and preventing the nodules from continuing to grow. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 A schematic diagram of the three-dimensional structure of an intelligent control system for an industrial dust collector provided by an embodiment of the present invention.

[0022] Figure 2 A cross-sectional view of an intelligent control system for an industrial dust collector provided by one embodiment of the present invention.

[0023] Figure 3 For the present invention Figure 2 A partial enlarged view of point X.

[0024] Figure 4 For the present invention Figure 2 A partial enlarged view of point Y.

[0025] Figure 5 A schematic diagram of a partial three-dimensional structure of an intelligent control system for an industrial dust collector provided by an embodiment of the present invention.

[0026] Figure 6 For the present invention Figure 5 A local enlarged view of point Z.

[0027] Figure 7 A schematic structural diagram of a top plate installation provided in accordance with an embodiment of the present invention.

[0028] Figure 8 A schematic structural diagram of a top plate installation provided in another embodiment of the present invention.

[0029] Figure 9 For the present invention Figure 8 A local enlarged view of point T.

[0030] Figure 10 A cross-sectional view of a mounting top plate provided in accordance with yet another embodiment of the present invention.

[0031] Figure 11 For the present invention Figure 10 A partial enlarged view of point E.

[0032] Figure 12 A cross-sectional view of a bottom arc portion provided in yet another embodiment of the present invention.

[0033] Figure 13 For the present invention Figure 10 A local enlarged view of Q.

[0034] Description of reference numerals:

[0035] 1. Dust removal box; 11. Mounting top plate; 12. Through hole; 121. Annular rotating groove; 122. Connecting ring; 123. Stop block; 124. Bump; 13. Dust outlet pipe; 14. Dust concentration sensor; 15. Dust bag; 2. Pulse dust removal mechanism; 3. Nodule crushing mechanism; 31. Bottom arc portion; 311. Hook-shaped clamping block; 312. Movable clamping block; 32. Top arc portion; 33. Inner support shaft; 34. Annular limiting groove; 35. Arc-shaped connecting groove; 36. Annular ring; 37. Sliding shaft; 38. Connecting block; 39. Driving groove; 391. Disengagement groove; 40. Driving rod; 41. Outer gear ring; 42. Rack. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0037] In the prior art, the arrangement of the dust bag 15 is usually fixed, and its opening is generally facing upward, and the flow direction of the dust-laden gas can be from top to bottom or from bottom to top. When the flow direction of the dust-laden gas is from top to bottom, the dust-laden gas passes through the interior of the dust bag 15 and diffuses outward. At this time, the wood chip impurities are mostly attached to the inner wall of the dust bag 15. When the dust-laden gas moves from top to bottom, it can naturally support the dust bag 15 to maintain its shape. When the dust-laden gas moves from bottom to top, the dust-laden gas enters the inside of the dust bag 15 from the outside. At this time, the wood chip impurities are mostly attached to the outer wall of the dust bag 15, but this method may cause the side wall of the dust bag 15 to shrink inward.

[0038] like Figure 1-13As shown, an embodiment of the present invention provides an intelligent control system for an industrial dust collector, including a dust removal box 1, in which a pulse dust removal mechanism 2 is installed, and a mounting top plate 11 is fixed in the dust removal box 1, on which a plurality of dust removal bags 15 are provided, and on which a plurality of nodule crushing mechanisms 3 corresponding one to one with the dust removal bags 15 are installed, and a plurality of bottom arc portions 31 are circumferentially installed at the bottom of the dust removal bag 15, and the nodule crushing mechanism 3 is connected to the bottom arc portion 31; before pulse dust removal, the nodule crushing mechanism 3 drives the bottom arc portion 31 to contract so that the wood chip nodules at the bottom of the dust removal bag 15 are crushed.

[0039] Specifically in this embodiment, in this embodiment, the flow direction of the dust-laden gas is from bottom to top; the dust box 1 mainly provides a working environment for wood chip dust removal, which will not be described in detail; the pulse dust removal mechanism 2 mainly provides pulsed high-speed gas, which intermittently blows the top of the dust bag 15 through the pulsed high-speed gas, so that the high-speed gas passes through the inside of the dust bag 15 and back-blows the adherents on the outer surface of the dust bag 15. The pulse dust removal mechanism 2 is a commonly used back-blow cleaning mechanism in the bag dust collector, which is a prior art and will not be described in detail here; the mounting top plate 11 is sealed and mounted on the dust collector The dust box 1 is inside, so that the gas can only enter the top of the installation top plate 11 through the dust removal bag 15. The bottom of the installation top plate 11 is the dust removal area, and the dust-laden gas is removed by the dust removal bag 15; the dust removal bag 15 in the prior art is generally a cylindrical structure with an open end and a closed end. In this embodiment, the dust removal bag 15 has an open upper end and a closed lower end. The dust removal bag 15 is generally made of synthetic fiber and has a certain elasticity. The dust removal bag 15 is a prior art and will not be repeated. In this embodiment, the dust removal bag 15 is arranged in a rectangular array, and the spacing between the centers of two adjacent dust removal bags 15 is large. The same; the bottom arc portion 31 is an arc-shaped sheet structure. Preferably, the center of the virtual circle where the bottom arc portion 31 is located coincides with the center of the dust bag 15. The number of the bottom arc portions 31 is preferably four. Preferably, multiple bottom arc portions 31 are evenly installed circumferentially at the bottom of the dust bag 15. The nodule crushing mechanism 3 is mainly used to drive the multiple bottom arc portions 31 to contract to crush the wood chip nodules at the bottom of the dust bag 15. Specifically, during operation, before the pulse dust removal mechanism 2 performs pulse dust removal on the dust bag 15 (the wood chip dust removal needs to be stopped before pulse cleaning), the nodule crushing mechanism 3 drives the multiple bottom arc portions 31 to contract simultaneously. , thereby changing the diameter of the bottom of the dust bag 15, but the diameter of the wood chip nodules at the bottom of the dust bag 15 cannot be changed. Therefore, the wood chip nodules are broken, and most of the wood chip nodules will fall away from the dust bag 15. A small amount of wood chip nodules still remain on the dust bag 15. At this time, the pulse dust removal mechanism 2 is started, and the top of the dust bag 15 is continuously blown with pulsed high-speed gas to wash away the wood chip impurities remaining on the dust bag 15; in this way, the wood chip nodules formed at the bottom of the dust bag 15 are broken, ensuring the dust removal efficiency of the dust bag 15, preventing the nodules from continuing to grow, and reducing the load on the dust bag 15.

[0040] In another embodiment provided by the present invention, a dust outlet pipe 13 is installed at the bottom of the dust removal box 1, and the dust outlet pipe 13 is externally connected to a wood chip processing device. When the dust-laden gas moves from bottom to top, larger wood chip particles fall directly into the dust outlet pipe 13 under the action of their own gravity, and wood chips with smaller diameters attached to the dust removal bag 15 fall into the dust outlet pipe 13 after being cleaned. The lower side of the side wall of the dust removal box 1 is connected to an air inlet pipe, and the air inlet pipe is used to pass the dust-laden gas. The upper side of the side wall of the dust removal box 1 is connected to an air outlet pipe, and the air outlet pipe is used to pass the filtered gas.

[0041] In another embodiment provided by the present invention, a dust concentration sensor 14 is installed in the dust removal box 1. The dust concentration sensor 14 is a prior art and its working principle is not described in detail. The dust concentration sensor 14 is used to detect the dust concentration in the dust removal box 1 in real time. When it is detected that the dust concentration in the dust removal box 1 is too high, the dust is stopped from being input into the dust removal box 1 to avoid causing an explosion.

[0042] In another embodiment provided by the present invention, a plurality of through holes 12 corresponding one to one with the dust bag 15 are provided on the mounting top plate 11, and the dust bag 15 passes through the through holes 12. The through holes 12 are used to pass the dust bag 15 so that the main part of the dust bag 15 is located below the mounting top plate 11 for easy filtering. The mounting top plate 11 is located on the upper side of the dust bag 15, and the diameter of the through holes 12 is equal to the diameter of the dust bag 15. The outer side of the dust bag 15 is attached to the inner wall of the through holes 12. In this way, it is ensured that the dust-laden gas can only enter the dust bag 15 from the outside of the dust bag 15, and then pass through the opening at the top of the dust bag 15 and be output.

[0043] In another embodiment provided by the present invention, the pulse dust removal mechanism 2 includes a plurality of air jets, which are arranged in a one-to-one correspondence with the dust bags 15 and are located above the dust bags 15 to ensure that each dust bag 15 is cleaned.

[0044] In another embodiment provided by the present invention, a plurality of top arc portions 32 corresponding to the bottom arc portions 31 are installed circumferentially on the inner wall of the upper side of the dust bag 15, and the bottom ends of the top arc portions 32 are connected to the bottom arc portions 31 by an inner support shaft 33. The inner support shaft 33 is attached to the inner wall of the dust bag 15, and the inner support shaft 33 and the side wall of the dust bag 15 are connected together by a plurality of cable ties (not shown in the figure). The shape of the dust bag 15 is supported by the inner support shaft 33 to prevent the dust-laden gas from entering the dust bag 15 from outside the dust bag 15, which will compress the dust bag 15 and cause it to shrink inward. In addition, the inner support shaft 33 is also used to connect the top arc portions 32 and the bottom arc portion 31 and make the top arc portion 32 and the bottom arc portion 31 move along with the movement of the inner support shaft 33. Obviously, in this embodiment, impurities such as wood chips remain on the outer wall of the dust bag 15 during the filtration process; the top arc portion 32 and the bottom arc portion 31 have the same outer diameter, and the top arc portion 32 and the bottom arc portion 31 are both fitted on the inner wall of the dust bag 15. Preferably, the top arc portion 32 and the bottom arc portion 31 have the same size and shape, and the top arc portion 32 and the bottom arc portion 31 can not only support the shape of the top and bottom of the dust bag 15, but also drive the top and bottom of the dust bag 15 to expand or contract accordingly.

[0045] In another embodiment provided by the present invention, the nodule crushing mechanism 3 includes a plurality of annular limiting grooves 34 corresponding to the through holes 12 on the mounting top plate 11, the annular limiting grooves 34 are located on the outside of the through holes 12, the annular limiting grooves 34 coincide with the center of the through holes 12, an annular ring 36 is rotatably installed in the annular limiting grooves 34, a plurality of sliding shafts 37 are horizontally slidably installed on the annular ring 36, and the plurality of sliding shafts 37 are evenly arranged on the annular ring 36 in a circumferential direction, a connecting block 38 is installed on the top arc portion 32, the connecting block 38 and the sliding shaft 37 are arranged in a one-to-one correspondence, the connecting block 38 is installed on the dust removal bag 15, and the connecting block 38 and the sliding shaft 37 are rotatably connected together; the nodule crushing mechanism 3 also includes a plurality of driving grooves 39 on the mounting top plate 11, and the driving grooves 39 are evenly distributed circumferentially The drive groove 39 is arranged outside the annular limit groove 34 and is arranged in a one-to-one correspondence with the sliding shaft 37. The drive groove 39 is an arc-shaped structure as a whole and is not coaxial with the dust bag 15. A drive rod 40 is formed at the end of the sliding shaft 37 away from the dust bag 15. The bottom of the drive rod 40 is slidably installed in the drive groove 39. The design of the drive groove 39 not being coaxial with the dust bag 15 makes it possible for the drive rod 40 to move in the direction away from the through groove when sliding in the drive groove 39; an outer gear ring 41 is fixed to the top of the annular ring 36, and a plurality of racks 42 are slidably installed on the side wall of the dust box 1. The plurality of outer gear rings 41 on the same row are meshed with the same rack 42, and the plurality of racks 42 are fixed together. A driving member drives the rack 42 to slide horizontally to drive the outer gear ring 41 to rotate. The driving member is preferably an electric push rod (not shown in the figure).

[0046] Before pulse jet cleaning is performed, the rack 42 is driven outward by the driving member, so that the multiple outer gear rings 41 rotate forward synchronously, and the annular ring 36 also rotates forward accordingly, and the sliding shaft 37 is also driven to move by the annular ring 36. However, since the sliding shaft 37 is slidably installed in the driving groove 39 through the driving rod 40, the sliding shaft 37 is also pulled outward by the driving rod 40 while following the movement of the annular ring 36. At the same time, the connecting block 38 also moves outward and pulls the top arc portion 32 outward. At this time, the multiple top arc portions 32 move outward at the same time, thereby removing The opening at the upper end of the dust bag 15 is enlarged. Since the inner support shaft 33 is attached to the inner wall of the dust bag 15, when the top arc portion 32 moves outward synchronously, the inner support shaft 33 abuts against the inner wall of the through hole 12 and tilts (equivalent to the inner support shaft 33 swinging slightly around the contact point with the mounting top plate 11). The movement of the inner support shaft 33 drives the bottom arc portion 31 to shrink inward (the bottom arc portion 31 not only shrinks inward but also moves upward for a distance). In this way, the bottom of the dust bag 15 shrinks, and the wood chip nodules on the dust bag 15 are broken. In addition, it is obvious that the dust bag The top of the dust bag 15 is expanded outward and the bottom is contracted inward, forming an inverted cone-shaped structure. This structure has the following functions: first, it breaks the nodules that may exist at the bottom of the dust bag 15; second, it maintains a certain speed of pulse jet. The inverted cone-shaped structure of the dust bag 15 can make the gas maintain a certain speed after reaching the bottom of the dust bag 15, which is conducive to cleaning the impurities on the dust bag 15; third, the upper end of the dust bag 15 is enlarged, which can avoid the damage to the dust bag 15 caused by the sudden appearance of pulse gas; fourth, the side wall of the dust bag 15 becomes inclined, and the mesh is also inclined, which will change By changing the size and shape of the mesh, some of the wood chip impurities stuck in the mesh will fall downward under the action of their own gravity, which is more conducive to the cleaning of the wood chip impurities by the pulse gas; in this way, the dust bag 15 has two working states. In the first working state, the dust bag 15 is a cylindrical structure, which is used to filter the dust-laden gas. The cylindrical initial state can also avoid the phenomenon of different diameters of the holes in the dust bag 15. In the second working state, the dust bag 15 is an inverted frustum-shaped structure, which can break the wood chip nodules at the bottom of the dust bag 15 and is also conducive to cleaning the dust bag 15.

[0047] For further information, see Figure 8-9During dust removal, the dust bag 15 is often in a basically stationary state, and the air intake pipe is arranged on one side of the dust box 1. The dust-laden gas can only enter through the air intake pipe. The amount and speed of the input dust-laden gas are usually constant. This will cause more wood chip impurities in the dust-laden gas to be adsorbed on the side of the dust bag 15 close to the air intake pipe, and the utilization efficiency of the dust bag 15 will decrease. For this reason, this embodiment provides a further solution. An arc-shaped connecting groove 35 is provided at one end of the driving groove 39 close to the annular limiting groove 34. The diameter of the arc-shaped connecting groove 35 is larger than the diameter of the annular limiting groove 34, and the center of the arc-shaped connecting groove 35 coincides with the center of the annular limiting groove 34. The width of the arc-shaped connecting groove 35 is equal to the width of the driving groove 39. The width is the same, and the driving rod 40 can also slide in the arc-shaped connecting groove 35. In the initial state, the driving rod 40 is still located in the driving groove 39; after the dust bag 15 has been working for a period of time, the rack 42 is driven inward by the driving member, so that the multiple outer gear rings 41 are synchronously rotated in the opposite direction, and the annular ring 36 also rotates in the opposite direction. In this way, the driving rod 40 is driven to move in the opposite direction into the driving groove 39, and the annular ring 36 continues to move, so that the driving rod 40 drives the sliding shaft 37 and the dust bag 15 to rotate in the opposite direction. In this way, the rotation angle of the dust bag 15 can be adjusted to avoid more wood chip impurities in the dust-laden gas from being adsorbed on the side of the dust bag 15 close to the air inlet pipe, thereby making full use of the dust bag 15.

[0048] Furthermore, it is obvious that the smaller the diameter of the inner support shaft 33 is, the less interference there is with the dust removal effect of the dust bag 15. However, when the dust bag 15 is changed into a truncated cone structure, the bottom arc portion 31 is driven to move and maintain the truncated cone structure by the inner support shaft 33. During pulse cleaning, great pressure will be applied to the inner support shaft 33, and even deformation of the inner support shaft 33 may be caused. For this reason, this embodiment provides a further solution. In order to ensure the sealing between the dust bag 15 and the through hole 12 and to enable the dust bag 15 to rotate when it is changed into an inverted truncated cone structure, further The through hole 12 is improved. An annular rotating groove 121 is provided on the inner wall of the through hole 12. A connecting ring 122 is rotatably installed in the annular rotating groove 121. The outer wall of the dust bag 15 is fixed to the connecting ring 122. In this way, when the annular ring 36 drives the dust bag 15 to become a truncated cone structure, the dust bag 15 can drive the connecting ring 122 to rotate, rather than just relying on the inner support shaft 33 to make the side wall of the dust bag 15 fit on the through hole 12; in addition, the two ends of the arc-shaped trajectory of the bottom arc portion 31 are equipped with clamping parts, and the adjacent bottom arc portions 31 are fixed to the corresponding The two adjacent clamping parts can be clamped to each other, and the clamping part includes a hook-shaped clamping block 311 fixed on the bottom arc part 31, and a movable clamping block 312 is installed in the hook-shaped clamping block 311 through a rotating shaft. A first torsion spring (not shown in the figure) is sleeved on the rotating shaft, and the first torsion spring is connected between the hook-shaped clamping block 311 and the movable clamping block 312. The hook-shaped clamping block 311 is mainly used to provide an installation position for the movable clamping block 312 and provide a working basis for the mutual clamping of the movable clamping blocks 312. The hook-shaped clamping block 311 is similar to an open palm, and the movable The clamping block 312 is a block-shaped structure with an inner concave portion. The hook-shaped clamping block 311 and the movable clamping block 312 are in a matching structure. When adjacent clamping portions are pressed and contacted, the two adjacent movable clamping blocks 312 will first contact each other and rotate by pressing each other. When they move to a certain position, the two contacting movable clamping blocks 312 are clamped together under the elastic action of the first torsion spring. In addition, a stop block 123 is fixed in the annular rotation groove 121, and a protrusion 124 is formed on the connecting ring 122. The protrusion 124 is used to prevent the stop block 123 from moving.The end of the driving groove 39 away from the arc-shaped connecting groove 35 is further connected to a disengagement groove 391. The disengagement groove 391 and the driving groove 39 as a whole form a complete annular structure, similar to an ellipse. The head of the disengagement groove 391 is connected to the tail of the driving groove 39, and the tail of the disengagement groove 391 is connected to the head of the driving groove 39 (the head and tail here are based on the movement trajectory of the driving rod 40. In one groove, the part that contacts the driving rod 40 first is the head, and the part that contacts the driving rod 40 later is the tail). The disengagement groove 391 is mainly used to make the driving rod 40 reset in the opposite direction after movement, so that the adjacent clamping parts will not contact again along the original path after separation. When the driving rod 40 starts to move from the driving rod 40 When the driving groove 39 enters the disengagement groove 391, the stop block 123 begins to contact and is blocked by the protrusion 124. To prevent the driving rod 40 from directly returning to its original path when resetting, the disengagement groove 391 needs to be further designed. A mounting groove is provided on the side of the disengagement groove 391 away from the driving groove 39. A one-way plate 392 is elastically and rotatably mounted in the mounting groove by a second torsion spring (not shown). A blocking block 393 is fixed in the mounting groove. The blocking block 393 is affixed to the end of the one-way plate 392 that is close to the dust bag 15. The blocking block 393 is used to prevent the one-way plate 392 from rotating in the direction closer to the dust bag 15 to prevent the driving rod 40 from returning to its original path when returning to its original position.

[0049] Before pulse cleaning, the drive starts to rotate the annular ring 36. At this time, the clamping part has two strokes, namely the clamping stroke and the separation stroke. During the clamping stroke: the rotation of the annular ring 36 drives the driving rod 40 to slide in the driving groove 39, and causes the top arc portion 32 to move outward synchronously. At this time, the inner support shaft 33 leans on the connecting ring 122 to move so that the bottom arc portion 31 (the movement of the bottom arc portion 31 is a combination of inward movement and upward movement) approaches each other. In the process of the bottom arc portions 31 approaching each other, the adjacent clamping parts also approach each other, and the inner support shaft 33 continues to move, so that the two adjacent movable clamping blocks 312 will first contact each other and rotate while squeezing each other. At this time, the connecting ring 122 rotates in the annular rotation groove 121, and the stop block 123 also rotates in a circular manner. When the two movable blocks 312 in contact are clamped together under the elastic action of the first torsion spring, the stop block 123 just contacts the protrusion 124. At this time, the two adjacent clamping parts are clamped together, and the multiple bottom arc parts 31 are elastically clamped together. When pulse cleaning is performed, the multiple bottom arc parts 31 will interact with each other, thereby reducing the pressure on the inner support shaft 33, ensuring that the inner support shaft 33 is not deformed, and also contributing to more stable pulse cleaning; during the separation stroke, the annular ring 36 continues to rotate. At this time, the driving rod 40 enters the disengagement groove 391, and the protrusion 124 is blocked by the stop block 123, and the sliding shaft 37 will no longer be pulled outward. After the driving rod 40 enters the disengagement groove 391, it begins to continue to move. The driving rod 40 drives the sliding shaft 37 to move as well, that is to say, the dust bag 15 still rotates, but the movement of the connecting ring 122 has been blocked. Therefore, relative movement occurs between the dust bag 15 and the connecting ring 122, causing the top arc portion 32 to swing slightly vertically. The dust bag 15 is deformed and wrinkled to a certain extent at this time, but it will not damage the dust bag 15. In this way, the inner support shaft 33 and the bottom arc portion 31 also swing slightly, causing the two adjacent clamping parts to disengage in a swinging manner, facilitating the reset of the bottom arc portion 31 and the clamping part. After the two adjacent clamping parts are disengaged, the driving rod 40 continues to move along the path of the disengagement groove 391. When the driving rod 40 contacts the one-way plate 392, it pushes the one-way plate 392 away from the dust bag 1 5 and squeeze the second torsion spring. When the driving rod 40 passes the one-way plate 392, the annular ring 36 starts to rotate in the opposite direction and reset. However, since the one-way plate 392 can only rotate in the direction away from the dust bag 15 at this time, the driving rod 40 can only continue to move along the path of the disengagement groove 391 and reset. In this way, the driving rod 40 finally returns to the head of the driving groove 39. In this process, the bottom arc portions 31 continue to swing and reversely return along another path (relative to the original path when disengaged) after disengaging from each other. When passing through the other path, multiple bottom arc portions 31 all circle around the original path (seen from the horizontal plane) and return. Moreover, multiple bottom arc portions 31 all move in the direction away from each other first, thus preventing the two adjacent clamping portions from returning along the original path and contacting each other.In summary, the engaging portion allows the bottom arc portions 31 to engage when they are close together, thereby alleviating the pressure on the inner support shaft 33 during pulse cleaning. Furthermore, the engagement of the disengagement groove 391 and the connecting ring 122 allows the inner support shaft 33 and the bottom arc portion 31 to swing in another direction and disengage from each other, and to return to their original positions via another path.

[0050] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. An intelligent control system for an industrial dust collector, comprising a dust box, a pulse dust removal mechanism installed in the dust box, a mounting top plate fixed in the dust box, and a plurality of dust bags arranged on the mounting top plate, characterized in that: The mounting top plate is provided with a plurality of nodule crushing mechanisms corresponding to the dust removal bags one by one, and the bottom of the dust removal bag is provided with a plurality of bottom arc parts in a circumferential direction, and the nodule crushing mechanisms are connected to the bottom arc parts; Before pulse dust removal, the nodule crushing mechanism drives the bottom arc to contract to crush the wood chip nodules at the bottom of the dust bag; A plurality of top arc portions corresponding to the bottom arc portions are mounted circumferentially on the inner wall of the upper side of the dust removal bag, and the bottom ends of the top arc portions are connected to the bottom arc portions via an inner support shaft; The outer diameters of the top arc portion and the bottom arc portion are the same, and both the top arc portion and the bottom arc portion are attached to the inner wall of the dust removal bag; The nodule crushing mechanism includes a plurality of annular limiting grooves corresponding to the through holes on the mounting top plate, the annular limiting grooves being located outside the through holes, an annular ring being rotatably mounted in the annular limiting grooves, a plurality of sliding shafts being horizontally slidably mounted on the annular ring, a connecting block being mounted on the top arc portion, the connecting block passing through the dust removal bag, and the connecting block being rotatably connected to the sliding shaft; The nodule crushing mechanism further includes a plurality of driving grooves formed on the mounting top plate, the driving grooves being circumferentially arranged outside the annular limiting groove, a sliding rod being formed on the end of the sliding shaft away from the dust removal bag, the bottom of the sliding rod being slidably mounted in the driving groove; An outer gear ring is fixed on the top of the annular ring, and multiple racks are slidably installed on the side wall of the dust removal box. Multiple outer gear rings on the same row are engaged with the same rack, and the multiple racks are fixed together. A driving member drives the rack to slide horizontally to drive the outer gear ring to rotate.

2. The intelligent control system for industrial dust collector according to claim 1, characterized in that: A dust outlet pipe is installed at the bottom of the dust removal box, an air inlet pipe is connected to the lower side of the side wall of the dust removal box, and an air outlet pipe is connected to the upper side of the side wall of the dust removal box.

3. The intelligent control system for industrial dust collector according to claim 1, characterized in that: A dust concentration sensor is installed in the dust removal box, and the dust concentration sensor is used to detect the dust concentration in the dust removal box in real time.

4. The intelligent control system for industrial dust collector according to claim 1, characterized in that: The mounting top plate is provided with a plurality of through holes corresponding to the dust removal bags one by one, the dust removal bags pass through the through holes, and the mounting top plate is located on the upper side of the dust removal bags.

5. The intelligent control system for industrial dust collector according to claim 1, characterized in that: The pulse dust removal mechanism includes a plurality of air jet pipes, which are arranged in a one-to-one correspondence with the dust removal bags and are located above the dust removal bags.

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