Automatic ash removal device in horizontal pipeline

Abstract

The invention relates to the technical field of pipeline ash removal, in particular to a horizontal pipeline interior automatic ash removal device which comprises an ash removal mechanism and a driving mechanism. The dust cleaning mechanism is driven by the driving mechanism to intermittently reciprocate along the inner wall of the horizontal pipeline, so that particles with large particle sizes in accumulated dust are shoveled up, the shoveled large-particle dust is intercepted by the vertical net plate, in the process that the accumulated dust is shoveled up, part of raised dust is taken away by airflow again, and the dust removal efficiency is improved. Part of fine dust can penetrate through the vertical screen plate to be taken away again along with airflow, intercepted large particles are finally deposited on the grid, and the large particles gathered on the grid can be removed through the overhaul discharging hole after a period of time, so that the dust is removed according to the particle size, and the problem that the large particles are deposited to block the pipe is effectively avoided.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline dust cleaning, and specifically proposes an automatic dust cleaning device inside a horizontal pipeline. Background Art

[0002] Mining, smelting, forging, heat treatment, painting, power generation and other processes will generate a lot of dust. Long-term exposure to such an environment will cause various occupational diseases, so dust removal is very necessary. At present, a widely used and effective dust removal method is to set up a dust hood at or near the dust source, use a fan to suck the flue gas and dust into the dust hood, and send it to the dust collector through the air duct for purification. After meeting the emission standards, it is discharged into the atmosphere through the air duct. For occasions where dust removal points are relatively scattered, multiple dust hoods need to be arranged for centralized dust treatment. The dust removal pipeline is designed according to the maximum air volume required by each dust removal point. The dust removal pipeline is in a horizontal state when installed. Since the requirements of each dust removal point vary greatly during use, the flow rate of the dust removal pipeline also varies greatly. When the flow rate is low, especially when the flow rate of the dust removal pipeline is lower than the minimum design value, the dust is easy to settle at the bottom of the inner wall of the dust removal pipeline, causing the pipeline network to be blocked.

[0003] At present, there are some cleaning methods that use a cleaning device to identify dust in the pipeline, transmit signals to the outside to increase the wind speed in the pipeline, and install a rotating cleaning device on the inspection vehicle to lift the dust and carry it away by the airflow, thereby achieving the purpose of cleaning. However, it is impossible to remove larger particles in the pipeline, and it is easy to cause large particles to settle and block the pipeline. In addition, the reliability and sustainability of operation in severe environments with high dust content are not high. Therefore, there is an urgent need for an automatic cleaning device inside a horizontal pipeline to clean large particles in the pipeline. Summary of the invention

[0004] In view of the above problems, an embodiment of the present application provides an automatic dust cleaning device inside a horizontal pipeline to solve the technical problems in the related art.

[0005] In order to achieve the above-mentioned purpose, the embodiment of the present application provides the following technical solution: an automatic dust cleaning device inside a horizontal pipe, used to clean the dust inside the horizontal pipe, comprising: a dust cleaning mechanism and a driving mechanism; inspection and discharge holes are provided at both ends of the horizontal pipe.

[0006] The cleaning mechanism includes a connecting tube and three groups of support rods, the three groups of support rods are connected to the outer side wall of the connecting tube and are evenly arranged along the circumference of the connecting tube, each group of support rods consists of two support rods arranged in an eight-shaped shape and connected to the connecting tube with a small diameter, a keel is installed on the two groups of support rods located below the axis of the connecting tube, the keel consists of a rectangular frame and mounting seats located on both sides of the axis of the connecting tube connected to its bottom, the lower ends of the two mounting seats are detachably connected to a grid, the grid is connected to the two mounting seats by a locking group, so that the grid can be removed and replaced after a certain period of use, so that the grid damaged by friction with the pipeline can be conveniently replaced and integrated after replacement, the grid is arc-shaped and concentric with the connecting tube, and a vertical mesh plate is fixedly installed in the middle of the keel.

[0007] A reinforcing component is installed between the keel and the connecting tube, and a capturing component is installed on both sides of the grid along its axial direction, and the capturing component is used to scoop up dust particles settled on the bottom of the inner wall of the horizontal pipe.

[0008] The ends of the support rods are all equipped with rollers through elastic members, and a resistance adjustment group is installed on the connecting tube. The resistance adjustment group is used to simultaneously adjust the elastic resistance thrust of multiple elastic members after the three groups of support rods are placed in the horizontal pipe.

[0009] The driving mechanism is arranged on the horizontal pipeline, and the driving mechanism consists of a rope whose middle part is fixedly connected to the connecting cylinder, two driving motors and two directional wheels. The two ends of the rope are respectively fixedly connected to the two directional wheels, and the two motors are respectively used to drive the two directional wheels; the two driving motors alternately drive the directional wheels connected to them to rotate, and the corresponding directional wheels wind the ropes, so that the rope drives the cleaning mechanism to intermittently reciprocate along the axial direction of the horizontal pipeline to clean the accumulated dust deposited on the bottom of the inner wall of the horizontal pipeline.

[0010] In one possible implementation, the capture assembly includes an arc frame fixedly installed at the end of the grid, and evenly arranged shovel teeth 1 and shovel teeth 2 are installed on the side of the arc frame away from the grid. The shovel teeth 1 and shovel teeth 2 are arranged at intervals, and multiple shovel teeth 1 and shovel teeth 2 are arranged in a zigzag shape at the end away from the arc frame.

[0011] In one possible implementation, the elastic member includes a sliding sleeve, a sliding sleeve is provided at the end of the support rod away from the connecting tube, two symmetrically arranged fixing rings are fixedly installed on the mounting seat, the sliding sleeve located below the axis of the connecting tube slides into the corresponding fixing ring, the roller is rollingly connected to the end of the sliding sleeve away from the support rod, a push rod is slidably inserted in the support rod, one end of the push rod penetrates into the connecting tube, and the other end is penetrated into the sliding sleeve and then a connecting disk is installed, a push spring is installed between the connecting disk and the inner wall of the sliding sleeve, and a tension spring is installed between the push rod and the connecting tube after the push rod penetrates into the connecting tube.

[0012] In one possible implementation, the resistance adjustment group includes a rotating cylinder rotatably connected to the connecting cylinder, wedge blocks corresponding to the resistance rods are installed on the rotating cylinder, a screw rod is connected to the rotating cylinder by a spline fit, and one end of the screw rod passes through the connecting cylinder and is connected to the connecting cylinder by a threaded fit.

[0013] In one possible implementation, the locking group includes guide grooves formed on opposite surfaces of two mounting seats, a hook plug plate is installed at the arc-shaped end of the grid, the end of the hook plug plate away from the grid is plugged into the guide groove, the hook plug plate is provided with plug holes evenly arranged along its length, the plug holes extend to the mounting seat, a through groove is provided on the vertical mesh plate, a supplementary seat is installed on the through groove, a horizontal plate is slidably connected to the supplementary seat, a return spring is installed between the horizontal plate and the supplementary seat, both ends of the horizontal plate are slidably connected to the lower end of the rectangular frame, plug rods corresponding to the plug holes are installed on the horizontal plate, and a push assembly for pushing the horizontal plate is installed between the rectangular frame and the connecting rod.

[0014] In one possible implementation, the push assembly includes two push columns installed at one end of the horizontal plate away from the insertion rod, and two push strips symmetrically arranged along the circumference of the connecting rod are slidably installed on the rectangular frame. Both ends of the push strips are equipped with push blocks that cooperate with the push columns. The push blocks are trapezoidal with the inclined surface facing the push columns. The push strip is connected to the connecting rod by threaded cooperation, and the threads at both ends of the connecting rod are in opposite directions.

[0015] In one possible implementation, the reinforcement assembly includes a connecting rod rotatably mounted on a rectangular frame and aligned vertically and parallel to the axis of the connecting tube, the middle portion of the connecting rod is rotatably connected to the vertical mesh plate, two oblique rods arranged in an eight-shape are mounted on the lower end of the outer wall of the connecting tube, the oblique rods are connected to the rectangular frame, a fixed rod is mounted between two support rods in a group located on the upper side, two oblique support rods arranged in an eight-shape are mounted on the fixed rod, and the lower ends of the oblique support rods are connected to the rectangular frame.

[0016] In one possible implementation, two horizontal sections of the rectangular frame are slidably connected with a moving rod mounted on a connecting rod, two return springs are installed between the moving rod and the rectangular frame, and the moving rod is located between the horizontal section of the rectangular frame and a push bar, a push cylinder for pushing the moving rod is installed on the push bar, both ends of the moving rod are installed with an inclined push bar, and a hook frame connected to the inclined push bar is installed on the grid.

[0017] In a possible implementation, the two oblique abutment bars installed on the same moving rod are arranged in an eight-shaped shape.

[0018] The above one or more technical solutions in the embodiments of the present invention have at least one of the following beneficial effects: 1. An automatic dust cleaning device inside a horizontal pipe designed by the present invention, the dust cleaning mechanism is driven by the driving mechanism to intermittently reciprocate along the inner wall of the horizontal pipe, thereby shoveling up particles with larger particle sizes in the accumulated dust, and the shoveled large particles are intercepted by the vertical mesh plates. In the process of shoveling up the accumulated dust, part of the raised dust is taken away again by the airflow, and part of the fine dust can pass through the vertical mesh plates and be taken away again along with the airflow, and the intercepted large particles are finally deposited on the grid. After a period of time, the large particles accumulated on the grid can be removed through the inspection discharge holes, thereby realizing the dust removal according to particle size, and effectively avoiding the problem of large particles depositing and clogging the pipe.

[0019] 2. The cleaning mechanism in the present invention can stably move along the inner wall of the horizontal pipe under the support of three groups of support rods, and the three groups of support rods are arranged in a triangular shape along the circumference of the connecting tube, which greatly improves the stability of the cleaning mechanism during movement, thereby improving the reliability and sustainability of the operation of the cleaning mechanism.

[0020] 3. The grid in the present invention is connected to two mounting seats through a locking group, so that the grid can be removed and replaced after being used for a certain period of time, so that the grid damaged by friction between the horizontal pipe can be easily replaced and fixed in an integrated manner after replacement.

[0021] 4. After the support rod of the present invention enters the horizontal pipe, the resistance adjustment group pushes the resistance rod, so that the resistance rod drives the tension spring to contract. At the same time, the resistance rod pushes the connecting plate to squeeze the resistance spring to contract, thereby increasing the elastic tensioning force of the resistance spring on the sliding sleeve and the roller, thereby improving the stability of the support rod supporting the cleaning mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is a three-dimensional structural schematic diagram of the dust cleaning mechanism of the present invention.

[0025] Figure 3 The present invention Figure 2 A local enlarged schematic diagram of point A.

[0026] Figure 4 The present invention Figure 2 sectional view of .

[0027] Figure 5 The present invention Figure 4 A partial enlarged schematic diagram of point B.

[0028] Figure 6 The present invention Figure 4 A partial enlarged schematic diagram of point C.

[0029] Figure 7 It is a structural schematic diagram of the locking group of the present invention.

[0030] Figure 8 It is a partially cutaway three-dimensional structural schematic diagram of the dust cleaning mechanism of the present invention.

[0031] Reference numerals: 1. Cleaning mechanism; 10. Connecting tube; 11. Support rod; 12. Keel; 120. Rectangular frame; 121. Mounting seat; 13. Grid; 14. Locking group; 140. Guide groove; 141. Hook plug plate; 142. Through groove; 143. Supplementary seat; 144. Horizontal plate; 145. Reset spring 1; 146. Insertion rod; 150. Column; 151. Push bar; 152. Pressure block; 15. Vertical mesh plate; 16. Strengthening assembly; 160. Connecting rod; 161. Diagonal rod; 162. Fixed rod; 163. Diagonal support rod; 17. Capturing assembly; 170. Arc frame; 171. Shovel tooth one; 172. Shovel tooth two; 181. Moving rod; 182. Reset spring two; 183. Oblique push bar; 184. Push cylinder; 2. Driving mechanism; 20. Rope; 21. Directional wheel; 22. Driving motor; 3. Horizontal pipeline; 4. Elastic member; 40. Fixed ring; 41. Sliding sleeve; 42. Push rod; 43. Connecting plate; 44. Push spring; 45. Tension spring; 5. Push force adjustment group; 50. Rotating cylinder; 51. Wedge block; 52. Screw; 6. Inspection and discharge hole. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0033] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] See also Figure 1An automatic dust cleaning device for the inside of a horizontal pipe is used to clean dust inside a horizontal pipe 3, comprising: a dust cleaning mechanism 1 and a driving mechanism 2; both ends of the horizontal pipe 3 are provided with inspection and discharge holes 6, and the inspection and discharge holes 6 are closed in the working state.

[0035] See also Figure 1 and Figure 2 The cleaning mechanism 1 includes a connecting tube 10 and three groups of support rods 11. The three groups of support rods 11 are connected to the outer wall of the connecting tube 10 and are evenly arranged along the circumference of the connecting tube 10. Each group of support rods 11 consists of two support rods 11 arranged in an eight-shaped shape and connected to the connecting tube 10 with a small diameter. A keel 12 is installed on the two groups of support rods 11 located below the axis of the connecting tube 10. The keel 12 consists of a rectangular frame 120 and a mounting seat 121 connected to the bottom thereof and located on both sides of the axis of the connecting tube 10. The lower ends of the two mounting seats 121 are detachably connected to a grid 13. The grid 13 is connected to the two mounting seats 121 by a locking group 14, so that the grid 13 can be removed and replaced after a certain period of use, so that the replacement of the grid 13 and the integrated fixation after replacement are more convenient. The grid 13 is arc-shaped and concentric with the connecting tube 10. A vertical mesh plate 15 is fixedly installed in the middle of the keel 12.

[0036] See also Figure 2 A reinforcing component 16 is installed between the keel 12 and the connecting tube 10 , and a capturing component 17 is installed on both sides of the grid 13 along its axial direction. The capturing component 17 is used to shovel up dust particles settled on the bottom of the inner wall of the horizontal pipe 3 .

[0037] See also Figure 1 and Figure 2 The ends of the support rods 11 are installed with rollers through elastic members 4, and a resistance adjustment group 5 is installed on the connecting tube 10. The resistance adjustment group 5 is used to simultaneously adjust the elastic resistance of multiple elastic members 4 after the three groups of support rods 11 are placed in the horizontal pipe 3, so that the three groups of support rods 11 can not only stably support the connecting pipe and the keel 12 to ensure the stability of the movement of the two in the horizontal pipe 3, but also make the ends of each support rod 11 have a certain elastic activity space to prevent the dust accumulation in the horizontal pipe 3 from jamming the ends of the support rods 11.

[0038] See also Figure 1The driving mechanism 2 is arranged on the horizontal pipe 3. The driving mechanism 2 consists of a rope 20 whose middle part is fixedly connected to the connecting tube 10, two driving motors 22 and two directional wheels 21. The two ends of the rope 20 are respectively fixedly connected to the two directional wheels 21. The two driving motors 22 are respectively used to drive the two directional wheels 21; the two driving motors 22 alternately drive the directional wheels 21 connected to them to rotate, and the corresponding directional wheels 21 wind the rope 20, so that the rope 20 drives the cleaning mechanism 1 to intermittently reciprocate along the axial direction of the horizontal pipe 3 to clean the accumulated dust deposited on the bottom of the inner wall of the horizontal pipe 3.

[0039] The rope 20 passes through both ends of the horizontal pipe 3 , and the rope 20 is concentric with the horizontal pipe 3 . The middle of the rope 20 is connected to the connecting tube 10 . Two driving motors 22 are respectively arranged at both ends of the horizontal pipe 3 .

[0040] Dust-laden gas Figure 1 The dust enters the horizontal pipe 3 in the direction shown in the figure, and after a period of time, dust is accumulated at the bottom of the horizontal pipe 3. Figure 1 The dust cleaning mechanism 1 at the position shown in the figure starts to work, first controlling one side (such as Figure 1 The drive motor 22 is turned on, and the drive motor 22 drives the traction rope to move around the directional wheel 21. The rope 20 pulls the connecting tube 10 to move, and the connecting tube 10 drives the support rod 11 to move, so that the roller connected to the support rod 11 starts to rotate, and the entire dust cleaning mechanism 1 starts to move. Figure 1 As shown in the figure, the mesh 13 moves to the right side. At this time, the capture component 17 located on the side of the moving direction of the grid 13 scoops up the particles with larger particle sizes in the accumulated ash to prevent the large particles from getting stuck in the bottom of the grid 13 and affecting the operation of the entire device. The scooped up large particles of ash are intercepted by the vertical mesh plate 15. In the process of shoveling the accumulated ash, part of the raised dust is taken away again by the airflow, and part of the fine dust can pass through the vertical mesh plate 15 and be taken away together with the airflow, while the intercepted large particles are finally deposited on the grid 13.

[0041] When the dust cleaning mechanism 1 moves to a certain position to the right, the left drive motor 22 is turned on, and the dust cleaning mechanism 1 moves to the left. At this time, the capture assembly 17 located on the side of the moving direction of the grid 13 shovels the accumulated dust. In the process of shoveling the accumulated dust, part of the raised dust is taken away again by the airflow, and the other fine dust is pushed to the left air inlet and is lifted up again by the airflow. The particles with larger particle sizes cannot be blown up by the airflow and are gathered on the grid 13. After a period of time, the large particles gathered on the grid 13 can be removed through the inspection and discharge hole 6, so as to achieve the dust removal by particle size.

[0042] The device has a simple structure and is easy to repair and replace. The pipeline cleaning work can be carried out when the system is working, and the dust with larger particles can be effectively removed to prevent the deposition of large particles from blocking the horizontal pipeline 3 and affecting the circulation of dust-containing gas.

[0043] See also Figure 2 and Figure 3 The capture assembly 17 includes an arc frame 170 fixedly installed at the end of the grid 13, and a side of the arc frame 170 away from the grid 13 is installed with evenly arranged shovel teeth 171 and shovel teeth 172, the shovel teeth 171 and the shovel teeth 172 are arranged at intervals, and a plurality of shovel teeth 171 and shovel teeth 172 are arranged in a zigzag shape at one end away from the arc frame 170, so that the capture assembly 17 can shovel up dust particles deposited on the inner wall of the horizontal pipe 3.

[0044] See also Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The elastic member 4 includes a sleeve 41. The end of the support rod 11 away from the connecting tube 10 is slidably sleeved with a sleeve 41. Two symmetrically arranged fixing rings 40 are fixedly installed on the mounting seat 121. The sleeve 41 located below the axis of the connecting tube 10 slides into the corresponding fixing ring 40. The roller is rollingly connected to the end of the sleeve 41 away from the support rod 11. A push rod 42 is slidably inserted in the support rod 11. One end of the push rod 42 penetrates into the connecting tube 10, and the other end penetrates into the sleeve 41 and then is installed with a connecting disk 43. A push spring 44 is installed between the connecting disk 43 and the inner wall of the sleeve 41. After the push rod 42 penetrates into the connecting tube 10, a tension spring 45 is installed between the connecting tube 10 and the connecting tube 10.

[0045] When there is no resistance against the resisting rod 42, the tension spring 45 and the push spring 44 are both in an extended state, the connecting plate 43 is in close contact with the end of the support rod 11, and the elastic member 4 at the end of the support rod 11 also facilitates the support rod 11 to enter the horizontal pipe 3 when the entire device is installed.

[0046] After the support rod 11 enters the horizontal pipe 3, the resistance adjustment group 5 pushes the resistance rod 42, so that the resistance rod 42 drives the tension spring 45 to contract. At the same time, the resistance rod 42 pushes the connecting plate 43 to squeeze the resistance spring 44 to contract, thereby increasing the elastic tensioning force of the resistance spring 44 on the sliding sleeve 41 and the roller, thereby improving the stability of the end support of the support rod 11.

[0047] See also Figure 2 and Figure 5 The resistance adjustment group 5 includes a rotating cylinder 50 rotatably connected to the connecting cylinder 10, and a wedge block 51 corresponding to the resistance rod 42 is installed on the rotating cylinder 50. A screw rod 52 is connected to the rotating cylinder 50 by a spline fit. One end of the screw rod 52 passes through the connecting cylinder 10 and is connected to the connecting cylinder 10 by a threaded fit.

[0048] When adjusting the push elastic force of the elastic member 4, the screw rod 52 is rotated. The screw rod 52 drives the rotating cylinder 50 to rotate by the spline cooperation with the rotating cylinder 50. When the rotating cylinder 50 rotates, it drives the wedge block 51 to rotate. The inclined surface of the wedge block 51 gradually squeezes and pushes the push rod 42 to move. During the movement, the push rod 42 pushes the connecting plate 43 to squeeze the push spring 44 to contract, thereby reducing the elastic contraction distance of the push spring 44, thereby increasing the elastic tensioning force of the push spring 44 on the sliding sleeve 41 and the roller, thereby improving the stability of the end support of the support rod 11.

[0049] See also Figure 2 The reinforcing assembly 16 includes a connecting rod 160 rotatably mounted on the rectangular frame 120 and aligned parallel to the axis of the connecting tube 10. The middle part of the connecting rod 160 is rotatably connected to the vertical mesh plate 15. Two oblique rods 161 arranged in an eight-shaped shape are installed at the lower end of the outer wall of the connecting tube 10. The oblique rod 161 is connected to the rectangular frame 120. A fixed rod 162 is installed between the two support rods 11 in a group located on the upper side. Two oblique support rods 163 arranged in an eight-shaped shape are installed on the fixed rod 162. The lower end of the oblique support rod 163 is connected to the rectangular frame 120.

[0050] The two support rods 11 located on the upper side are connected to the rectangular frame 120 through a fixed rod 162 and two diagonal support rods 163, thereby realizing an integrated connection and fixation between the connecting tube 10 and the three groups of support rods 11, and the two diagonal support rods 163 and the two diagonal rods 161 form a triangular stable structure with the rectangular frame 120, so that the stability of the connecting tube 10 and the rectangular frame 120 is greatly improved under the connection of the multiple triangular structures.

[0051] See also Figure 2 , Figure 3 , Figure 7 and Figure 8 The locking group 14 includes guide grooves 140 formed on opposite surfaces of the two mounting seats 121, a hook plug plate 141 is installed on the arc-shaped end of the grid 13, and the end of the hook plug plate 141 away from the grid 13 is plugged into the guide groove 140, and the hook plug plate 141 is provided with plug holes evenly arranged along its length direction, and the plug holes extend to the mounting seat 121, and a through groove 142 is opened on the vertical mesh plate 15, and a supplementary seat 143 is installed on the through groove 142, and a horizontal plate 144 is slidably connected to the supplementary seat 143, and a return spring 145 is installed between the horizontal plate 144 and the supplementary seat 143, and both ends of the horizontal plate 144 are slidably connected to the lower end of the rectangular frame 120, and plug rods 146 corresponding to the plug holes are installed on the horizontal plate 144, and a push component for pushing the horizontal plate 144 is installed between the rectangular frame 120 and the connecting rod 160.

[0052] See also Figure 7 and Figure 8The push assembly includes two push columns 150 installed at one end of the horizontal plate 144 away from the insertion rod 146, and two push bars 151 symmetrically arranged along the circumference of the connecting rod 160 are slidably installed on the rectangular frame 120. Both ends of the push bars 151 are equipped with push blocks 152 that cooperate with the push columns 150. The push blocks 152 are trapezoidal with the inclined surface facing the push columns 150. The push bars 151 are connected to the connecting rod 160 by threaded cooperation, and the threads opened at both ends of the connecting rod 160 are in opposite directions.

[0053] When installing the grid 13, the hook plates 141 at both ends of the grid 13 are inserted into the guide groove 140 from the open ends of the corresponding guide groove 140 until the hook plates 141 are tightly pressed against the guide groove 140, and then the connecting rod 160 is rotated. During the rotation process, the connecting rod 160 drives the push bar 151 to move by means of threaded engagement. The two push bars 151 connected to the connecting rod 160 move in the opposite direction. During the movement, the push bars 151 drive the pressing block 152. When the inclined surface of the pressing block 152 contacts the pressing column 150, When the mesh 13 is fixed to the two mounting seats 121, the inclined surface of the pressing block 152 rolls against the ball bearings on the supporting column 150, thereby pushing the horizontal plate 144 to move toward the corresponding hook plug plate 141 until the plug rod 146 on the horizontal plate 144 is inserted into the corresponding plug hole, and the hook plug plate 141 and the guide groove 140 are locked and limited, thereby achieving the fixation between the grid 13 and the two mounting seats 121. The grid 13 can be fixedly connected to the two mounting seats 121 by simply rotating the connecting rod 160, which greatly improves the convenience of replacing the grid 13.

[0054] See also Figure 2 , Figure 3 and Figure 8 , two horizontal sections of the rectangular frame 120 are slidably connected with a moving rod 181 sleeved on the connecting rod 160, a reset spring 182 is installed between the moving rod 181 and the rectangular frame 120, and the moving rod 181 is located between the horizontal section of the rectangular frame 120 and the push bar 151, and a push cylinder 184 is installed on the push bar 151 to push the moving rod 181, and oblique push bars 183 are installed at both ends of the moving rod 181, and a hook frame connected with the oblique push bar 183 is installed on the grid 13. During the movement of the push bar 151, the moving rod 181 is pushed by the push cylinder 184 to squeeze the reset spring 182 to shrink, and at the same time, the moving rod 181 drives the oblique push bar 183 to move, and the lower end of the oblique push bar 183 is inserted into the hook frame, thereby improving the supporting force and connection stability at both ends of the grid 13, and can also simultaneously realize the fixation of the grid 13 and the support of the capture components 17 at both ends.

[0055] See also Figure 8 The two oblique bars 183 installed on the same moving rod 181 are arranged in an eight-shaped shape to facilitate cleaning of large particles on the grid 13 from between the two oblique bars 183.

[0056] See also Figure 1-Figure 8 During specific operation, the dust-laden gas flows along Figure 1 The dust enters the horizontal pipe 3 in the direction shown in the figure, and after a period of time, dust is accumulated at the bottom of the horizontal pipe 3. Figure 1 The dust cleaning mechanism 1 in the middle position starts to work. First, the driving motor 22 on one side (such as the right side) is controlled to start. The driving motor 22 drives the traction rope to move around the directional wheel 21. The rope 20 pulls the connecting cylinder 10 to move. The connecting cylinder 10 drives the support rod 11 to move, so that the roller connected to the support rod 11 starts to rotate, and the entire dust cleaning mechanism 1 starts to move. Figure 1 As shown in the figure, the mesh 13 moves to the right side. At this time, the capture component 17 located on the side of the moving direction of the grid 13 scoops up the particles with larger particle sizes in the accumulated dust. The scooped large particles are intercepted by the vertical mesh plate 15. In the process of shoveling the accumulated dust, part of the raised dust is taken away again by the airflow, and part of the fine dust can pass through the vertical mesh plate 15 and be taken away again together with the airflow, while the intercepted large particles are finally deposited on the grid 13.

[0057] When the dust cleaning mechanism 1 moves to a certain position to the right, the left drive motor 22 is turned on, and the dust cleaning mechanism 1 moves to the left. At this time, the capture assembly 17 located on the side of the moving direction of the grid 13 shovels the accumulated dust. In the process of shoveling the accumulated dust, part of the raised dust is taken away again by the airflow, and the other fine dust is pushed to the left air inlet and is lifted up again by the airflow. The particles with larger particle sizes cannot be blown up by the airflow and are gathered in the grid 13 installed on the keel 12. After a period of time, the large particles gathered on the grid 13 can be removed through the inspection and discharge hole 6, so as to achieve the dust removal by particle size.

[0058] In the description of the present invention, it is necessary to understand that the terms "length", "width", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0059] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic dust cleaning device for the interior of a horizontal pipeline, used for cleaning dust inside a horizontal pipeline (3) with inspection and discharge holes (6) at both ends, characterized in that: include: A dust cleaning mechanism (1) and a driving mechanism (2); The dust cleaning mechanism (1) comprises a connecting tube (10) and three groups of support rods (11), the three groups of support rods (11) are evenly arranged and connected to the outer wall of the connecting tube (10), each group of support rods (11) is composed of two support rods (11) arranged in an eight-shaped shape and connected to the connecting tube (10) with a small diameter, and a keel (12) is installed on the two groups of support rods (11) located below the axis of the connecting tube (10), the keel (12) is composed of a rectangular frame (120) and mounting seats (121) on both sides below it, the lower ends of the two mounting seats (121) are detachably connected to a grid (13), the grid (13) is connected to the two mounting seats (121) through a locking group (14), and a vertical mesh plate (15) is fixedly installed in the middle of the keel (12); A reinforcing assembly (16) is installed between the keel (12) and the connecting tube (10), and a collecting assembly (17) is installed on both sides of the grid (13) along its axial direction, and the collecting assembly (17) is used to scoop up dust particles deposited on the bottom of the inner wall of the horizontal pipe (3); The ends of the support rods (11) are each provided with rollers via elastic members (4); a resistance adjustment group (5) is provided on the connecting tube (10); the resistance adjustment group (5) is used to simultaneously adjust the elastic resistance forces of a plurality of elastic members (4); the driving mechanism (2) is arranged on the horizontal pipe (3); the driving mechanism (2) is composed of a rope (20) fixedly connected to the connecting tube (10), two driving motors (22) and two directional wheels (21); the two driving motors (22) alternately drive the rope (20) to drive the dust cleaning mechanism (1) to intermittently reciprocate along the horizontal pipe (3) to clean the dust accumulated on the bottom of the inner wall of the horizontal pipe (3).

2. According to claim 1, the automatic dust cleaning device inside a horizontal pipeline is characterized in that: The elastic member (4) comprises a sliding sleeve (41), and a sliding sleeve (41) is provided on the end of the support rod (11) away from the connecting tube (10). Two symmetrically arranged fixing rings (40) are fixedly mounted on the mounting seat (121). The sliding sleeve (41) located below the axis of the connecting tube (10) slides into the corresponding fixing ring (40). The roller is rollingly connected to the end of the sliding sleeve (41) away from the support rod (11). A push rod (42) is slidably inserted into the support rod (11). One end of the push rod (42) penetrates into the connecting tube (10), and the other end penetrates into the sliding sleeve (41) and is then installed with a connecting disk (43). A push spring (44) is installed between the connecting disk (43) and the inner wall of the sliding sleeve (41). After the push rod (42) penetrates into the connecting tube (10), a tension spring (45) is installed between the connecting tube (10) and the connecting tube (10).

3. According to claim 1, the automatic dust cleaning device inside a horizontal pipeline is characterized in that: The reinforcing assembly (16) comprises a connecting rod (160) rotatably mounted on a rectangular frame (120) and aligned vertically and parallel to the axis of the connecting tube (10); the middle portion of the connecting rod (160) is rotatably connected to the vertical mesh plate (15); two oblique rods (161) arranged in an eight-shaped shape are mounted on the lower end of the outer wall of the connecting tube (10); the oblique rods (161) are connected to the rectangular frame (120); a fixing rod (162) is mounted between two supporting rods (11) in a group located on the upper side; two oblique support rods (163) arranged in an eight-shaped shape are mounted on the fixing rod (162); and the lower ends of the oblique support rods (163) are connected to the rectangular frame (120).

4. According to claim 2, the automatic dust cleaning device inside a horizontal pipeline is characterized in that: The resistance adjustment group (5) comprises a rotating cylinder (50) rotatably connected in the connecting cylinder (10), a wedge block (51) corresponding to the resistance rod (42) is installed on the rotating cylinder (50), a screw rod (52) is connected in the rotating cylinder (50) by means of a spline fit, and one end of the screw rod (52) passes through the connecting cylinder (10) and is connected to the connecting cylinder (10) by means of a threaded fit.

5. According to claim 3, the automatic dust cleaning device inside a horizontal pipeline is characterized in that: The locking group (14) comprises guide grooves (140) formed on opposite surfaces of two mounting seats (121); a hook plug plate (141) is installed at the arc-shaped end of the grid (13); the end of the hook plug plate (141) away from the grid (13) is plugged into the guide groove (140); the hook plug plate (141) is provided with plug holes evenly arranged along its length direction, and the plug holes extend to the mounting seat (121); a through groove (142) is formed on the vertical mesh plate (15); A supplementing seat (143) is installed, a horizontal plate (144) is slidably connected to the supplementing seat (143), a return spring (145) is installed between the horizontal plate (144) and the supplementing seat (143), both ends of the horizontal plate (144) are slidably connected to the lower end of the rectangular frame (120), an insertion rod (146) corresponding to the insertion hole is installed on the horizontal plate (144), and a push component for pushing the horizontal plate (144) is installed between the rectangular frame (120) and the connecting rod (160).

6. According to claim 5, the automatic dust cleaning device inside a horizontal pipeline is characterized in that: The push assembly comprises two push columns (150) installed at one end of the horizontal plate (144) away from the insertion rod (146), and two push bars (151) symmetrically arranged along the axis of the connecting rod (160) are slidably installed on the rectangular frame (120), and push blocks (152) matching with the push columns (150) are installed at both ends of the push bars (151), and the push blocks (152) are trapezoidal with the inclined surface facing the push columns (150), and the push bars (151) are connected to the connecting rod (160) by means of threaded cooperation, and the threads opened at both ends of the connecting rod (160) are in opposite directions.

7. According to claim 1, the automatic dust cleaning device inside a horizontal pipeline is characterized in that: The capture assembly (17) comprises an arc frame (170) fixedly mounted on the end of the grid (13); a side of the arc frame (170) away from the grid (13) is mounted with evenly arranged shovel teeth 1 (171) and shovel teeth 2 (172); the shovel teeth 1 (171) and shovel teeth 2 (172) are arranged at intervals, and a plurality of shovel teeth 1 (171) and shovel teeth 2 (172) are arranged in a zigzag shape at one end away from the arc frame (170).

8. The automatic dust cleaning device inside a horizontal pipeline according to claim 6, characterized in that: Two horizontal sections of the rectangular frame (120) are slidably connected with a moving rod (181) sleeved on the connecting rod (160), a second return spring (182) is installed between the moving rod (181) and the rectangular frame (120), and the moving rod (181) is located between the horizontal section of the rectangular frame (120) and the push bar (151), a push cylinder (184) for pushing the moving rod (181) is installed on the push bar (151), oblique push bars (183) are installed at both ends of the moving rod (181), and a hook frame plugged with the oblique push bar (183) is installed on the grid (13).

9. The automatic dust cleaning device inside a horizontal pipeline according to claim 8, characterized in that: The two oblique abutment bars (183) installed on the same moving rod (181) are arranged in an eight-shaped shape.

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