Solid particle conveying device

Abstract

The present invention relates to the field of solid particle conveying technology, and in particular to a solid particle conveying device, which includes a vertical pipe, a horizontal pipe, two centrally symmetrically arranged curved pipes; a support plate, a mounting ring fixedly connected to the top surface of the support plate, two mounting blocks slidably and rotatably connected to the inner wall of the mounting ring, two symmetrically arranged grooves are provided on the two mounting blocks, and two grooves are provided; a rotating member for driving the two mounting blocks and the two internal curved pipes to rotate synchronously is provided on the support plate; a cleaning pipe is connected to the sliding block, a guide pipe is fixed and connected to one side of the mounting ring, the cleaning pipe is slidably inserted into the inside of the guide pipe, a spiral blade is fixedly connected to the inner wall of one end of the cleaning pipe, and one end of the spiral blade extends into the inside of the guide pipe. The present invention can quickly replace a blocked curved pipe, so that the device can smoothly convey, and the spare curved pipe can be replaced without stopping the machine, thereby ensuring the service life of the device, cleaning the materials, reducing waste, and reducing the risk of blockage of the device.

Description

Technical Field

[0001] The invention relates to the technical field of solid particle conveying, and in particular to a solid particle conveying device. Background Art

[0002] There are often some solid additives in chemical production, such as coupling agents, catalysts, etc. Due to the need for automated control, unmanned operations are required when adding additives. In order to reduce the harm to operators during the addition process and reduce dust emissions, pneumatic conveying is usually used to transport solid additives.

[0003] Pneumatic conveying utilizes the energy of airflow to transport granular materials along the direction of airflow in a closed pipe. The structure of the pneumatic conveying device is simple, and it can be used for horizontal, vertical or inclined conveying. However, at the bends of the conveying pipeline, the material will collide with the inner wall of the pipeline, lose some kinetic energy, and cause pressure loss inside the pipeline. In severe cases, it may cause pipeline blockage. In addition, pneumatic conveying pipelines are prone to blockage as the use time increases, especially at the bends of the pipeline, where materials are more likely to accumulate.

[0004] The authorization announcement number is CN117886126B, the announcement date is April 16, 2024, and the name is a Chinese patent document for a quantitative pneumatic conveying device for powder materials. By controlling the servo motors on each set of adapters to open, the protective parts are driven to rotate slowly, so that the powder airflow entering the adapter through the channel collides with the rotating curved protective plate, avoiding the material from colliding with the same part of the curved protective plate for a long time, and extending the life of the curved protective plate. However, when a blockage occurs, the second hemispherical shell needs to be disassembled for clearing, which is cumbersome and affects production efficiency.

[0005] The authorization announcement number is CN118083587B, the announcement date is May 28, 2024, and the name is a pneumatic pipeline transportation device for compound fertilizers that prevents blockage. When a pipeline component in the working position is blocked, it is cleaned by rotating it to the cleaning position, and another pipeline component is rotated to the working position to take over the work. However, the cleaning roller group hinders the transportation of solid particles and increases the probability of blockage in the pipe. Summary of the invention

[0006] In view of this, the present invention provides a solid particle conveying device, aiming to solve the technical problem in the prior art that the turning parts of the conveying pipeline are prone to wear and blockage.

[0007] In order to solve the above technical problems, the present invention provides a solid particle conveying device, which adopts the following technical solution: a solid particle conveying device, comprising a vertical pipe for pneumatic conveying, a horizontal pipe placed above the vertical pipe, and two curved pipes arranged symmetrically at the center, and also comprising:

[0008] A support plate is arranged at the top of the vertical tube, and an axially horizontal mounting ring is fixedly connected to the top surface of the support plate. The bottom of the mounting ring is connected to the top of the vertical tube, and one side of the mounting ring is connected to the end of the horizontal tube. The inner wall of the mounting ring is slidably and rotatably connected to two mounting blocks. The two mounting blocks are provided with symmetrically arranged grooves, and there are two grooves. A curved pipe is placed in each complete groove. A rotating member for driving the two mounting blocks and the two curved pipes inside to rotate synchronously is provided on the support plate;

[0009] A sliding block is slidably connected to a supporting plate, a sliding part is provided on the supporting plate for driving the sliding block to slide back and forth along the axial direction of the horizontal tube, a vertical plate is fixedly connected to the sliding block, a cleaning tube with an axial horizontal direction is rotatably connected to the vertical plate, a cleaning part is provided on the vertical plate for driving the cleaning tube to rotate around its own axial direction, a guide tube is fixed and connected to the side of the mounting ring away from the horizontal tube, the cleaning tube is slidably inserted into the inside of the guide tube, a spiral blade made of elastic material is fixedly connected to the inner wall at one end of the cleaning tube, and one end of the spiral blade extends into the inside of the guide tube.

[0010] By adopting the above technical solution, the two elbows are driven to rotate by the rotation of the mounting block, and the elbows can be quickly replaced, which reduces the downtime of the device and is conducive to ensuring the production efficiency of the device. The mounting block is slidably plugged into the inner wall of the mounting ring. By removing one of the mounting blocks, the elbow can be taken out from the groove, which can achieve the purpose of replacing the spare elbow without stopping the machine, further improving the production efficiency. The spiral blade extends into the elbow for cleaning. Compared with the cleaning roller group set in the prior art, it will not hinder the movement of the material in the elbow, ensuring the efficiency of the pneumatic conveying of the device, and the structure is more flexible, easy to use, and reduces the workload of the staff.

[0011] Optionally, a connecting pipe connected to the end of the cleaning pipe is fixedly connected to one side of the vertical plate. The connecting pipe is bent, and the bottom end of the connecting pipe is bent downward and connected to a retractable discharge pipe, and the bottom end of the discharge pipe is connected to the vertical pipe.

[0012] By adopting the above technical solution, the spiral blades clean out the materials that are blocking the bent pipe, and the connecting pipe and the feed pipe can allow the materials to re-enter the vertical pipe and be transported, thereby realizing material reuse and reducing waste.

[0013] Optionally, the opening side wall of the cleaning tube at one end inside the guide tube is inclined.

[0014] By adopting the above technical solution, the accumulation of materials at the port of the cleaning pipe is reduced and stability is ensured.

[0015] Optionally, the blade edge of the spiral blade portion located inside the guide tube can abut against the inner wall of the guide tube and the inner wall of the curved tube.

[0016] By adopting the above technical solution, the cleaning effect of the spiral blade on the bent pipe is guaranteed.

[0017] Optionally, a mounting tube is connected in series between the cross tube and the outer wall of the mounting ring, one end of the mounting tube is fixedly connected to the outer wall of the mounting ring, the other end of the mounting tube is fixed to the end of the cross tube by a flange, the cross tube is rotatably connected to the inside of the flange, and a driving member is provided on the support plate for driving the cross tube to rotate around its own axis.

[0018] By adopting the above technical solution, during the replacement of the elbow, the end of the transverse tube is blocked by the installation block, so that the air flow in the transverse tube is stopped, and the material in the transverse tube naturally falls to the bottom wall inside the transverse tube. When the transverse tube resumes air flow, the material that has fallen in the transverse tube always stays at the bottom, causing material waste and affecting the efficiency of subsequent transportation. The transverse tube is rotated to lift the material in the transverse tube, which is convenient for the material in the transverse tube to continue to be transported with the air flow, reducing material waste and ensuring the effective use of the cross section of the transverse tube.

[0019] Optionally, a scraper extending axially along the transverse tube is fixedly connected to the inner wall of the mounting tube, and the scraper abuts against the top of the inner wall of the transverse tube.

[0020] By adopting the above technical solution and arranging a scraper, the situation where the material adheres to the inner wall of the horizontal pipe can be further reduced.

[0021] Optionally, the sliding member includes a motor 1 fixedly connected to the top surface of the support plate and with a horizontal output shaft, a gear 1 fixedly connected to the output end of the motor 1, a horizontally placed sliding rod fixedly connected to one end of the vertical plate, a rack 1 meshing with the gear 1 fixedly connected to the bottom surface of the sliding rod, and two limit blocks 1 and 2 respectively located on both sides of the vertical plate fixedly connected to the top surface of the sliding rod.

[0022] By adopting the above technical solution, the motor 1 is started to drive the gear 1 to rotate, and as the gear 1 rotates, the rack 1 reciprocates, that is, the reciprocating movement of the sliding rod is controlled, so that the sliding block is easily controlled to approach or move away from the mounting ring.

[0023] Optionally, the rotating member includes a rotating shaft passing through two mounting blocks, one end of the rotating shaft is fixedly connected to gear 2, the top surface of the sliding rod is fixedly connected to rack 2, gear 2 connected to the mounting ring is meshed above rack 2, the circumference of the pitch circle of gear 2 is equal to the total width of the teeth on rack 2, and a ratchet mechanism is provided between the outer wall of the rotating shaft and the inner wall of gear 2.

[0024] By adopting the above technical solution, during the reciprocating movement of the sliding rod, the rack 2 meshes with the gear 2 and drives the gear 2 to rotate. Under the control of the ratchet mechanism, the mounting block rotates unidirectionally, which is convenient for resetting the sliding rod to prevent the mounting block from being driven to rotate again during the resetting process of the sliding rod. After the gear 2 passes the stroke of the rack 2, the gear 2 rotates 180 degrees, that is, the mounting block is controlled to rotate 180 degrees.

[0025] Optionally, both sides of the mounting ring are detachably connected to a cover plate by bolts, and a positioning rod is fixedly connected to the cover plate. Two positioning grooves are centrally symmetrically arranged on one of the mounting blocks, and a positioning pin is slidably connected to the inside of the positioning rod by a spring, and one end of the positioning pin is set to a rounded corner and the end is slidably inserted into the positioning groove.

[0026] By adopting the above technical solution, the cover plate is conducive to the stability of the lifting device. As the mounting block rotates, when the mounting block rotates to a specified position, the positioning pin is inserted into one of the positioning grooves under the action of the spring, which is conducive to the stability of the lifting device.

[0027] Optionally, the driving member includes a ring fixedly connected to the end of the sliding rod, a hemispherical sliding ball is fixedly connected to the inner wall of the ring, a sleeve is fixedly sleeved on the outer wall of the cross tube, the ring is sleeved on the outer wall of the sleeve, the outer wall of the sleeve is provided with a sliding groove composed of interconnected straight grooves and spiral grooves, the sliding ball is slidably inserted in the sliding groove, and the length of the straight groove is equal to the length of the second rack.

[0028] By adopting the above technical solution, as the sliding rod approaches the mounting ring, the sliding ball first slides along the straight groove. When the sliding rod passes the second length of the rack, the sliding ball enters the spiral groove. As the sliding rod and the sliding ball continue to move, the sliding ball pushes the inner wall of the spiral groove, thereby causing the sleeve to rotate, thereby driving the cross tube to rotate, so that the cross tube starts to rotate after the mounting block has completed its rotation.

[0029] In summary, the present invention includes the following beneficial technical effects:

[0030] 1. The two elbows are driven to rotate by the rotation of the mounting block, and the elbows can be quickly replaced, which reduces the downtime of the device and helps to ensure the production efficiency of the device. The mounting block is slidably plugged into the inner wall of the mounting ring. By removing one of the mounting blocks, the elbow can be taken out from the groove, which can achieve the purpose of replacing the spare elbow without stopping the machine, further improving the production efficiency. The spiral blade extends into the elbow for cleaning. Compared with the cleaning roller group set in the prior art, it will not hinder the movement of the material in the elbow, ensuring the efficiency of the pneumatic conveying of the device, and the structure is more flexible, easy to use, and reduces the workload of the staff.

[0031] 2. The spiral blades clean out the materials that are blocking the elbow, and the connecting pipe and the discharge pipe enable the materials to re-enter the vertical pipe and be transported, thus realizing material reuse and reducing waste.

[0032] 3. Make the horizontal tube rotate so that the material in the horizontal tube is lifted up, which is convenient for the material in the horizontal tube to continue to be transported along with the air flow, reducing the waste of materials and ensuring the effective use of the cross-section of the horizontal tube.

[0033] 4. The sliding part, rotating part and driving part are linked to facilitate timing control. The spiral blade starts to enter the curved pipe after the mounting block has completed its rotation, avoiding the spiral blade from being damaged by contact with the mounting block. The horizontal pipe starts to rotate after the mounting block has completed its rotation, which is conducive to lifting the material in the horizontal pipe and re-transporting it by pneumatic force. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0035] Figure 2 It is a structural schematic diagram of a tube replacement assembly and a cleaning assembly in an embodiment of the present invention;

[0036] Figure 3 It is a schematic structural diagram of a rotating member in an embodiment of the present invention;

[0037] Figure 4 for Figure 3 A partial enlarged schematic diagram of part A;

[0038] Figure 5 It is a schematic diagram of the structure of the mounting block and the spiral blade in an embodiment of the present invention;

[0039] Figure 6 A schematic diagram of the structure of a positioning rod and a positioning pin in an embodiment of the present invention;

[0040] Figure 7 It is a structural schematic diagram of a sliding member and a sliding groove in an embodiment of the present invention;

[0041] Figure 8 Schematic diagram of the structure of the sliding member and the cleaning member in the embodiment of the present invention.

[0042] Description of reference numerals: 1. vertical pipe; 11. material hopper; 2. horizontal pipe; 21. reaction chamber; 22. cyclone separator; 23. air outlet pipe; 3. elbow pipe; 4. pipe replacement assembly; 41. support plate; 42. support block; 43. mounting ring; 431. cover plate; 432. positioning rod; 433. positioning groove; 434. positioning pin; 44. through hole 1; 45. through hole 2; 46. mounting block; 47. groove; 48. rotating member; 481. rotating shaft; 482. gear 2; 483. rack 2; 484. ratchet mechanism; 5. cleaning assembly; 51. Sliding block; 52. Sliding part; 521. Motor 1; 522. Gear 1; 523. Sliding rod; 524. Rack 1; 525. Limit block 1; 526. Limit block 2; 53. Vertical plate; 54. Cleaning pipe; 55. Cleaning part; 551. Motor 2; 552. Gear 3; 553. Gear 4; 56. Guide pipe; 57. Spiral blade; 58. Connecting pipe; 59. Feeding pipe; 6. Lifting assembly; 61. Mounting pipe; 62. Driving part; 621. Ring; 622. Sliding ball; 623. Sleeve; 624. Slide groove. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0044] The following is combined with Figure 1 -Attached Figure 8 The present invention is described in further detail.

[0045] The embodiment of the present invention discloses a solid particle conveying device. Figures 1 to 8 A solid particle conveying device comprises a vertical pipe 1, a horizontal pipe 2, two elbows 3, a pipe changing assembly 4, a cleaning assembly 5 and a lifting assembly 6. The two ends of the elbow 3 are respectively connected to the top of the vertical pipe 1 and one end of the horizontal pipe 2. The vertical pipe 1, the elbow 3 and the horizontal pipe 2 constitute a conveying pipeline for pneumatic conveying. Two elbows 3 are provided. The pipe changing assembly 4 can change the positions of the two elbows 3 to achieve replacement of the blocked elbow 3, reduce downtime, and ensure production efficiency. The cleaning assembly 5 cleans the blocked elbow 3, reduces the need for disassembly, and is conducive to long-term continuous and stable operation of the device. During the replacement of the elbow 3, the material in the horizontal pipe 2 settles, and the lifting assembly 6 lifts the material in the horizontal pipe 2, which is convenient for pneumatic conveying of the material in the horizontal pipe 2, improves the stability of the device, and reduces the sedimentation of the material.

[0046] Reference Figure 1, the vertical tube 1 is placed vertically, and the bottom end of the vertical tube 1 extends into the material hopper 11 for storing materials. The airflow in the vertical tube 1 moves upward, so that the materials in the material hopper 11 move upward with the airflow and are pneumatically conveyed. The materials in the vertical tube 1 pass through the inside of the elbow 3 and the inside of the horizontal tube 2, and flow to the reaction chamber 21 where the materials to be added are required through the end of the horizontal tube 2 away from the elbow 3. Specifically, a cyclone separator 22 is provided at the end of the horizontal tube 2, and an air outlet pipe 23 is provided through the top of the cyclone separator 22. The bottom end of the air outlet pipe 23 is downward and extends into the inside of the cyclone separator 22, and the top end of the air outlet pipe 23 is upwardly connected to a negative pressure device, such as a vacuum pump, a fan, an exhauster, etc. to achieve pneumatic conveying. Furthermore, in other embodiments, it is also possible to select an external negative pressure device at other positions of the vertical tube 1 or the horizontal tube 2, so as to make the airflow in the vertical tube 1, the elbow 3 and the horizontal tube 2 flow in a directional manner.

[0047] The tube changing assembly 4 includes a support plate 41 , two support blocks 42 , a mounting ring 43 , a through hole 1 44 , two through holes 2 45 , two mounting blocks 46 , two complete grooves 47 and a rotating member 48 .

[0048] Reference Figure 2 The support plate 41 is arranged on the top of the vertical pipe 1, and other devices on the processing site provide support for the support plate 41, which will not be described in detail here. The top surface of the support plate 41 is fixedly connected to two support blocks 42, and the two support blocks 42 are spaced apart along the axial direction of the horizontal pipe 2. The top surface of the support block 42 is provided with a chamfer, and the mounting ring 43 is annular as a whole. The mounting ring 43 is arranged to penetrate in its own axial direction, and the mounting ring 43 is axially placed horizontally, and the outer wall of the bottom of the mounting ring 43 is fixedly connected to the top surfaces of the two support blocks 42. Figure 3 and Figure 5 The through hole 1 44 is formed at the bottom of the mounting ring 43 and penetrates the mounting ring 43 in the radial direction of the mounting ring 43. Two through holes 2 45 are formed at both sides of the mounting ring 43. The through holes 2 45 penetrate the mounting ring 43 in the radial direction of the mounting ring 43. One of the through holes 2 45 is connected to the inner cavity of the transverse tube 2. Figure 5 and Figure 6 The mounting block 46 is cylindrical in shape as a whole, and the mounting block 46 is placed horizontally in the axial direction. Both mounting blocks 46 are slidably inserted into the inner wall of the mounting ring 43, and the circumferential side walls of the two mounting blocks 46 are rotatably connected to the inner wall of the mounting ring 43. Two grooves 47 are provided on the adjacent surfaces of the two mounting blocks 46. When the two mounting blocks 46 are fitted together, the grooves 47 are connected to each other to form two complete grooves 47, and a bend pipe 3 is placed in each complete groove 47. One of the bend pipes 3 is connected to through hole 1 44 and through hole 2 45 at both ends, and the other bend pipe 3 is connected to through hole 2 45 at one end and its other end is closed by the top of the inner wall of the mounting ring 43. Refer to Figure 3 The rotating member 48 is used to drive the two mounting blocks 46 and the two internal curved pipes 3 to rotate synchronously.

[0049] When one of the curved pipes 3 is blocked, it is necessary to replace the curved pipe 3. The two mounting blocks 46 are rotated synchronously. As the two mounting blocks 46 rotate, the top port of the vertical pipe 1 and the port at one end of the horizontal pipe 2 are blocked by the mounting blocks 46. The two curved pipes 3 in the mounting blocks 46 rotate synchronously with the mounting blocks 46. After the mounting blocks 46 rotate 180 degrees, the positions of the two curved pipes 3 are changed, so that the new curved pipe 3 replaces the blocked curved pipe 3, and the vertical pipe 1 is connected with the horizontal pipe 2 again, so as to continue to transport materials.

[0050] Compared with the prior art that requires disassembling other devices to clear the bend 3, replacing the bend 3 is more efficient, ensuring the production efficiency of the device, and there is no need to wait for the cleaning time of the bend 3. When cleaning the blocked bend 3, one of the mounting blocks 46 is taken out, and the bend 3 connected to the horizontal pipe 2 and the vertical pipe 1 works normally at this time, and the blocked bend 3 is directly taken out from the groove 47, which is convenient for cleaning and helps to improve the cleaning effect of the bend 3.

[0051] The cleaning assembly 5 includes a sliding block 51 , a sliding member 52 , a vertical plate 53 , a cleaning pipe 54 , a cleaning member 55 , a guide pipe 56 , a spiral blade 57 , a connecting pipe 58 and a feeding pipe 59 .

[0052] Reference Figure 2 , Figure 7 and Figure 8 The sliding block 51 is connected to the support plate 41 in a sliding manner along the axial direction of the transverse tube 2, and the sliding member 52 is provided on the support plate 41, and is used to drive the sliding block 51 to slide back and forth along the axial direction of the transverse tube 2. Figure 2 The vertical plate 53 is placed vertically and fixedly connected to the top surface of the sliding block 51. The axial direction of the cleaning tube 54 is parallel to the axial direction of the horizontal tube 2. One end of the cleaning block is rotatably connected to the vertical plate 53. The cleaning member 55 is arranged on the vertical plate 53. The cleaning member 55 is used to drive the cleaning tube 54 to rotate around its own axis.

[0053] Reference Figure 2 and Figure 5 One end of the guide tube 56 is fixedly connected to the side of the outer wall of the mounting ring 43 away from the horizontal tube 2 and the guide tube 56 is connected to one of the through holes 2 45. The end of the cleaning tube 54 is slidably inserted into the guide tube 56. The side wall of the opening of the cleaning tube 54 at one end of the guide tube 56 is inclined. One end of the spiral blade 57 is fixedly connected to the inner wall of the cleaning tube 54, and the other end extends into the guide tube 56. The spiral blade 57 is made of elastic material. The edge of the spiral blade 57 located inside the guide tube 56 can abut against the inner wall of the guide tube 56 and the inner wall of the curved tube 3. Specifically, the spiral blade 57 can be made of elastic materials such as rubber or polyurethane, and has certain flexibility and elasticity.

[0054] When cleaning the blocked elbow 3, in addition to removing the mounting block 46, the spiral blade 57 can also be used for cleaning. The sliding block 51 is brought close to the mounting ring 43. As the sliding block 51 approaches, the cleaning pipe 54 is inserted into the guide pipe 56 and close to the mounting ring 43. The spiral blade 57 is pushed forward, and the spiral blade 57 is made of elastic material. As the cleaning pipe 54 continues to approach the mounting ring 43, the end of the spiral blade 57 can extend into the blocked elbow 3 and abut against the inner wall of the elbow 3. The cleaning member 55 controls the rotation of the cleaning pipe 54 and the spiral blade 57. During the rotation of the spiral blade 57, the material in the blocked elbow 3 is scraped off and sent to the guide pipe 56 and the cleaning pipe 54. Compared with the method of removing the mounting block 46, this cleaning method does not require disassembly, can improve production efficiency, and reduce the work intensity of the staff. Compared with the prior art of setting a cleaning roller group in the pipeline, this scheme will not hinder the transportation of materials in the elbow 3, which is conducive to reducing the probability of blockage in the elbow 3.

[0055] Reference Figure 2 The cleaning member 55 includes a second motor 551, a third gear 552 and a fourth gear 553. The second motor 551 is fixedly connected to the vertical plate 53. The output end of the second motor 551 is placed horizontally. The third gear 552 is fixedly connected to the output end of the second motor 551. The third gear 552 is sleeved on the outer wall of the cleaning tube 54. The inner wall of the third gear 552 is fixedly connected to the outer wall of the cleaning tube 54. The third gear 552 is meshed with the fourth gear 553. The second motor 551 is started to drive the third gear 552 and the fourth gear 553 to rotate, so as to drive the cleaning tube 54 and its internal spiral blade 57 to rotate. In other embodiments, the cleaning member 55 can also select a servo motor and a belt transmission to drive the cleaning tube 54 to rotate, and it is necessary to pay attention to not conflicting with other structures.

[0056] Reference Figure 1 and Figure 2 One end of the connecting pipe 58 is fixedly connected to the side of the vertical plate 53 away from the horizontal pipe 2, the connecting pipe 58 is connected to the cleaning pipe 54, the connecting pipe 58 is bent, the bottom end of the connecting pipe 58 is bent downward, the top end of the feeding pipe 59 is connected to the bottom end of the connecting pipe 58, the bottom end of the feeding pipe 59 is connected to the vertical pipe 1, and the feeding pipe 59 is retractable. Specifically, the feeding pipe 59 can be made of rubber, PVC, PU, ​​PE and other materials, can be shrunk and stretched, and can be adapted according to the actual conveying length.

[0057] As the spiral blade 57 delivers the material in the blocked elbow 3 to the guide pipe 56 and the cleaning pipe 54, the spiral blade 57 continues to rotate, so that the material moves to the connecting pipe 58 and enters the horizontal pipe 2 through the discharge pipe 59. On the basis of cleaning the blocked elbow 3, the cleaned material is further recycled to reduce waste.

[0058] The material lifting assembly 6 includes a mounting tube 61 , a driving member 62 and a scraper.

[0059] Reference Figure 2 and Figure 3 The mounting tube 61 is disposed between the transverse tube 2 and the outer wall of the mounting ring 43. One end of the mounting tube 61 is fixedly connected to the outer wall of the mounting ring 43 and communicated with the second through hole 45. The other end of the mounting tube 61 is fixed to the end of the transverse tube 2 through a flange. The transverse tube 2 is communicated with the mounting tube 61. The transverse tube 2 is rotatably connected to the inside of the flange. The driving member 62 is used to drive the transverse tube 2 to rotate around its own axis. The scraper is fixedly connected to the inner wall of the mounting tube 61. The scraper extends along the axial direction of the transverse tube 2. The scraper abuts against the top of the inner wall of the transverse tube 2. The scraper is not shown in the figure.

[0060] During the replacement of the elbow 3, the end of the transverse tube 2 is blocked by the mounting block 46, so that the air flow in the transverse tube 2 is stopped, and the material in the transverse tube 2 naturally falls to the bottom wall inside the transverse tube 2. When the transverse tube 2 resumes air flow, the material that has fallen in the transverse tube 2 always stays at the bottom, causing material waste and affecting the efficiency of subsequent transportation. The transverse tube 2 is rotated, and the scraper is in contact with the inner wall of the transverse tube 2, so that the material in the transverse tube 2 is lifted, which is convenient for the material in the transverse tube 2 to continue to be transported with the air flow, reducing material waste and ensuring the effective use of the cross section of the transverse tube 2.

[0061] Specifically, refer to Figure 2 , Figure 7 and Figure 8The sliding member 52 includes a motor 1 521, a gear 1 522, a sliding rod 523, a rack 1 524, a stop block 1 525 and a stop block 2 526. The motor 1 521 is fixedly connected to the top surface of the support plate 41 and the output shaft is horizontal, the gear 1 522 is fixedly connected to the output end of the motor 1 521, the sliding rod 523 is placed horizontally and one end thereof is slidably connected to the side wall of the vertical plate 53, the rack 1 524 is fixedly connected to the bottom surface of the sliding rod 523, the gear 1 522 is meshed with the rack 1 524, the stop block 1 525 and the stop block 2 526 are both fixedly connected to the top surface of the sliding rod 523, and the stop block 1 525 and the stop block 2 526 are respectively located on both sides of the vertical plate 53. When the motor 1 521 is started, the gear 1 522 is driven to rotate, and as the gear 1 522 rotates, the rack 1 524 reciprocates, that is, the reciprocating movement of the sliding rod 523 is controlled. The sliding rod 523 moves forward, and the limiting block 1 525 and the limiting block 2 526 move forward with the sliding rod 523, until the limiting block 2 526 abuts against the side of the vertical plate 53 away from the mounting ring 43, and the sliding rod 523 continues to move. Under the action of the limiting block 2 526, the vertical plate 53 and the sliding block 51 approach the mounting ring 43. When the sliding rod 523 is reset, the sliding rod 523 moves until the limiting block 1 525 abuts against the side of the vertical plate 53 close to the mounting ring 43, and the sliding rod 523 continues to move, and the limiting block 1 525 pushes the vertical plate 53 and the sliding block 51 away from the mounting ring 43. It can avoid the situation that the spiral blade 57 abuts against the mounting block 46 during the rotation of the mounting block 46. The limiting block 1 525 and the limiting block 2 526 are provided to facilitate the control of the movement timing of the sliding block 51, and can improve the stability of the device and reduce the separation between the gear and the rack. It is convenient to control the sliding block 51 to approach or move away from the mounting ring 43.

[0062] Reference Figure 3 , Figure 4 and Figure 7The rotating member 48 includes a rotating shaft 481, a second gear 482, a second rack 483 and a ratchet mechanism 484. The rotating shaft 481 is provided through the two mounting blocks 46, the second gear 482 is rotatably connected to the cover plate 431, one end of the rotating shaft 481 extends into the interior of the second gear 482, the second rack 483 is fixedly connected to the top surface of the sliding rod 523, the second gear 482 is meshed with the second rack 483, and the pitch circle circumference of the second gear 482 is equal to the total width of the teeth on the second rack 483, the ratchet mechanism 484 is provided between the outer wall of the rotating shaft 481 and the inner wall of the second gear 482, the ratchet mechanism 484 is composed of a pawl and a ratchet, the ratchet is fixedly connected to the inner wall of the second gear 482, and the pawl is fixedly connected to the outer wall of the rotating shaft 481. During the reciprocating movement of the sliding rod 523, the second rack 483 is meshed with the second gear 482 and drives the second gear 482 to rotate. Controlled by the ratchet mechanism 484, when the second gear 482 rotates counterclockwise, the ratchet pushes the ratchet, so that the pawl and the rotating shaft 481 rotate synchronously with the second gear 482. When the second gear 482 rotates clockwise, the elastic pawl is in contact with the ratchet during the rotation of the ratchet, but the pawl does not rotate with the ratchet. The rotating shaft 481 and the two mounting blocks 46 only rotate counterclockwise, which is convenient for the reset of the sliding rod 523, so as to prevent the sliding rod 523 from driving the mounting block 46 to rotate again during the reset process. After the second gear 482 passes the stroke of the second rack 483, the second gear 482 rotates 180 degrees, that is, the mounting block 46 is controlled to rotate 180 degrees.

[0063] Further, refer to Figure 3 and Figure 6 , both sides of the mounting ring 43 are detachably connected with cover plates 431 by bolts, and a positioning rod 432 is fixedly connected to the cover plate 431. Two positioning grooves 433 are centrally symmetrically arranged on one of the mounting blocks 46. A positioning pin 434 is slidably connected inside the positioning rod 432 by a spring. One end of the positioning pin 434 is set as a rounded corner and the end is slidably inserted into the positioning groove 433. The cover plate 431 is conducive to the stability of the lifting device. As the mounting block 46 rotates, when the mounting block 46 rotates to the specified position, the positioning pin 434 is inserted into one of the positioning grooves 433 under the action of the spring, which is conducive to the stability of the lifting device.

[0064] Reference Figure 2 , Figure 5 and Figure 7The driving member 62 includes a collar 621, a sliding ball 622, a sleeve 623 and a slide groove 624. The collar 621 is fixedly connected to the end of the sliding rod 523, the sliding ball 622 is fixedly connected to the inner wall of the collar 621, the sliding ball 622 is hemispherical as a whole, the sleeve 623 is fixedly sleeved on the outer wall of the horizontal tube 2, the collar 621 is sleeved on the outer wall of the sleeve 623, the slide groove 624 is opened on the outer wall of the sleeve 623, the slide groove 624 is composed of a connected straight groove and a spiral groove, the sliding ball 622 is slidably inserted in the slide groove 624, and the length of the straight groove is equal to the length of the rack 2483. As the sliding rod 523 approaches the mounting ring 43, the sliding ball 622 first slides along the straight groove. When the sliding rod 523 passes the length of the rack 2 483, the sliding ball 622 enters the spiral groove. As the sliding rod 523 and the sliding ball 622 continue to move, the sliding ball 622 pushes the inner wall of the spiral groove, thereby causing the sleeve 623 to rotate, thereby driving the cross tube 2 to rotate.

[0065] By adopting the above structure, the sliding member 52, the rotating member 48 and the driving member 62 are linked to each other, which is convenient for controlling the timing. When the motor 1 521 rotates, the sliding rod 523 moves, the rack 1 524 meshes with the gear 1 522, the rack 2 483 meshes with the gear 2 482, the mounting block 46 and the curved pipe 3 rotate, and the sliding ball 622 slides along the straight groove; when the sliding rod 523 passes the length of the rack 2 483, the mounting block 46 rotates completely, the rack 1 524 continues to mesh with the gear 1 522, the limit block 2 526 pushes the vertical plate 53 and the sliding block 51 to move, the cleaning pipe 54 approaches the mounting ring 43, the spiral blade 57 moves forward, the sliding ball 622 slides along the spiral groove, and the horizontal pipe 2 starts to rotate. The spiral blade 57 starts to enter the curved pipe 3 after the mounting block 46 completes its rotation, avoiding damage to the spiral blade 57 caused by abutment between the spiral blade 57 and the mounting block 46. The transverse pipe 2 starts to rotate after the mounting block 46 completes its rotation, which is conducive to lifting the material in the transverse pipe 2 and re-transporting it pneumatically.

[0066] Furthermore, in other embodiments, the sliding member 52 may also be a linear driver, such as an electric push rod, a linear motor, etc. The rotating member 48 and the driving member 62 may also be a servo motor, a stepper motor, etc. In other embodiments, the timing of starting the device is controlled by an electrical signal to avoid conflicts between devices.

[0067] The implementation principle of a solid particle conveying device according to an embodiment of the present invention is as follows:

[0068] When one of the elbows 3 is clogged and needs to be replaced and cleaned:

[0069] Start the motor 521, the gear 1 522 meshes with the rack 1 524, and drives the sliding rod 523 to move. During the movement of the sliding rod 523, the gear 2 482 meshes with the rack 2 483, so that the rotating rod, the mounting block 46 and the curved pipe 3 rotate, so that the new curved pipe 3 rotates between the vertical pipe 1 and the horizontal pipe 2, so that the material can be pneumatically transported again; after the sliding rod 523 passes the length of the rack 2 483, the mounting block 46 no longer rotates, the positioning pin 434 is slidably inserted into a positioning groove 433, and the sliding ball 622 enters the spiral groove track. The sliding ball 622 is pressed against the spiral groove track. The inner wall of the rotary groove has a pushing effect, so that the sleeve 623 drives the horizontal tube 2 to rotate, so that the material in the horizontal tube 2 is lifted; the limit block 526 is in contact with the vertical plate 53, and as the sliding rod 523 continues to move, the cleaning tube 54 and the spiral blade 57 approach the mounting ring 43, and the spiral blade 57 extends into the blocked elbow 3, and the motor 551 is started, the cleaning tube 54 and the spiral blade 57 rotate, and the spiral blade 57 makes the material in the blocked elbow 3 pass through the guide tube 56, the cleaning tube 54, the connecting tube 58 and the discharge tube 59 in turn, and enter the vertical tube 1 for recovery.

[0070] When the bent pipe 3 is seriously damaged and needs to be replaced, the bolts on the lower cover plate 431 and the mounting block 46 are removed, and the cover plate 431 and the mounting block 46 away from the motor 521 are removed, and the damaged bent pipe 3 can be taken out from the groove 47, and a new bent pipe 3 can be replaced to continue production.

[0071] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0072] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A solid particle conveying device, comprising a vertical pipe for pneumatic conveying, a horizontal pipe placed above the vertical pipe, and two centrally symmetrically arranged elbows, the two ends of the elbows being respectively connected to the top of the vertical pipe and one end of the horizontal pipe, characterized in that: Also includes: A support plate is arranged at the top of the vertical tube, and an axially horizontal mounting ring is fixedly connected to the top surface of the support plate. The bottom of the mounting ring is connected to the top of the vertical tube, and one side of the mounting ring is connected to the end of the horizontal tube. The inner wall of the mounting ring is slidably and rotatably connected to two mounting blocks. The two mounting blocks are provided with symmetrically arranged grooves, and there are two grooves. A curved pipe is placed in each complete groove. A rotating member for driving the two mounting blocks and the two curved pipes inside to rotate synchronously is provided on the support plate; A sliding block is slidably connected to a supporting plate, a sliding member is provided on the supporting plate for driving the sliding block to slide back and forth along the axial direction of the horizontal tube, a vertical plate is fixedly connected to the sliding block, a cleaning tube with an axial horizontal direction is rotatably connected to the vertical plate, a cleaning member is provided on the vertical plate for driving the cleaning tube to rotate around its own axial direction, a guide tube is fixed and connected to the side of the mounting ring away from the horizontal tube, the cleaning tube is slidably plugged into the inside of the guide tube, a spiral blade made of elastic material is fixedly connected to the inner wall of one end of the cleaning tube, one end of the spiral blade extends into the inside of the guide tube, and the spiral blade can extend into the curved tube for cleaning; When one of the elbows is blocked, it is necessary to replace the elbow so that the two mounting blocks rotate synchronously. As the two mounting blocks rotate, the top port of the vertical pipe and the port at one end of the horizontal pipe are blocked by the mounting blocks. The two elbows in the mounting blocks rotate synchronously with the mounting blocks. After the mounting blocks rotate, the positions of the two elbows change, so that the new elbow replaces the blocked elbow, and the vertical pipe is connected to the horizontal pipe again, so as to continue to transport materials. A connecting pipe connected to the end of the cleaning pipe is fixedly connected to one side of the vertical plate. The connecting pipe is bent, and the bottom end of the connecting pipe is bent downward and connected to a retractable feeding pipe, and the bottom end of the feeding pipe is connected to the vertical pipe.

2. A solid particle conveying device according to claim 1, characterized in that: The side wall of the opening of the cleaning tube at one end inside the guide tube is arranged obliquely.

3. A solid particle conveying device according to claim 2, characterized in that: The blade edge of the spiral blade part located inside the guide tube can abut against the inner wall of the guide tube and the inner wall of the curved tube.

4. A solid particle conveying device according to claim 1, characterized in that: A mounting tube is connected in series between the transverse tube and the outer wall of the mounting ring. One end of the mounting tube is fixedly connected to the outer wall of the mounting ring, and the other end of the mounting tube is fixed to the end of the transverse tube through a flange. The transverse tube is rotatably connected to the inside of the flange, and a driving member is provided on the support plate for driving the transverse tube to rotate around its own axis.

5. A solid particle conveying device according to claim 4, characterized in that: The inner wall of the installation tube is fixedly connected with a scraper extending along the axial direction of the horizontal tube, and the scraper abuts against the top of the inner wall of the horizontal tube.

6. A solid particle conveying device according to claim 4, characterized in that: The sliding member includes a motor 1 fixedly connected to the top surface of the support plate and with a horizontal output shaft, a gear 1 fixedly connected to the output end of the motor 1, a sliding rod placed horizontally and one end of which is slidably connected to the side wall of the vertical plate, a rack 1 meshing with the gear 1 fixedly connected to the bottom surface of the sliding rod, and two limit blocks 1 and 2 respectively located on both sides of the vertical plate fixedly connected to the top surface of the sliding rod.

7. A solid particle conveying device according to claim 6, characterized in that: The rotating member includes a rotating shaft passing through two mounting blocks, one end of the rotating shaft is fixedly connected to gear 2, the top surface of the sliding rod is fixedly connected to rack 2, gear 2 connected to the mounting ring is meshed above rack 2, the circumference of the pitch circle of gear 2 is equal to the total width of the teeth on rack 2, and a ratchet mechanism is provided between the outer wall of the rotating shaft and the inner wall of gear 2.

8. A solid particle conveying device according to claim 7, characterized in that: The mounting ring is detachably connected to a cover plate on both sides by bolts, and a positioning rod is fixedly connected to the cover plate. Two positioning grooves are centrally symmetrically arranged on one mounting block, and a positioning pin is slidably connected to the inside of the positioning rod by a spring, and one end of the positioning pin is set to a rounded corner and the end is slidably inserted into the positioning groove.

9. A solid particle conveying device according to claim 6, characterized in that: The driving member includes a ring fixedly connected to the end of the sliding rod, a hemispherical sliding ball is fixedly connected to the inner wall of the ring, a sleeve is fixedly sleeved on the outer wall of the horizontal tube, the ring is sleeved on the outer wall of the sleeve, and the outer wall of the sleeve is provided with a sliding groove composed of interconnected straight grooves and spiral grooves, the sliding ball is slidably inserted in the sliding groove, and the length of the straight groove is equal to the length of the second rack.

Images