A cyclone dust removal device of a heavy medium separation system of a coal washery

Abstract

The utility model provides a coal washery heavy medium sorting system's cyclone dust collector, relates to sorting dust removal technical field. Coal washery heavy medium sorting system's cyclone dust collector includes cyclone dust collector body, and the cyclone dust collector body includes straight cylinder section, cone cylinder section and dust discharging pipe, two support frame boards are fixedly installed on the outer wall of cyclone dust collector body, and one side fixed mounting of one support frame board has installation box, rotationally installed with rotating sleeve on installation box, and the top end and bottom end of rotating sleeve all extend to installation box outside, and dust discharging pipe penetrates rotating sleeve and is not contacted with the inner wall of rotating sleeve, and the rotating sleeve is fixedly provided with the N type rotating frame, and the N type rotating frame is located the top of installation box. The utility model can effectively prevent dust accumulation, and as far as possible avoid the hardening phenomenon to occur.

Description

Technical Field

[0001] This utility model relates to the field of sorting and dust removal technology, specifically a cyclone dust removal device for a heavy media sorting system in a coal washing plant. Background Technology

[0002] Coal washing plants are key facilities for the deep processing of coal. They are industrial plants that remove impurities from raw coal using physical or chemical methods and sort it into different grades of products such as clean coal and middlings according to quality and use. In the coal processing process, in order to achieve efficient separation of coal and gangue, coal is usually subjected to heavy media separation. During the separation process, magnetite powder or ferrosilicon powder is added as a medium. Therefore, dust with high density and large particle size is generated during the separation process. Cyclone dust collectors rely on centrifugal force to separate dust, and the collection efficiency of particles larger than 5~10μm can reach 80%-90%. They are very suitable for the primary purification of such materials. Therefore, they are often set up as pretreatment equipment before bag dust collectors to perform preliminary dust purification.

[0003] However, it has been found that when using common cyclone dust collectors, some of the dust may adhere to the inner wall of the dust collector, especially the cone section. When this dust combines with moisture, it will form a caking effect on the inner wall of the dust collector, affecting its normal operation. In order to deal with the caking, it is usually necessary to stop the machine for a period of time and remove it manually, which is not only labor-intensive but also delays normal dust collection.

[0004] Therefore, it is necessary to provide a new cyclone dust removal device for heavy media separation systems in coal washing plants to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a cyclone dust collector for a heavy media separation system in a coal washing plant that effectively prevents dust accumulation and minimizes caking.

[0006] To solve the above-mentioned technical problems, the cyclone dust collector device for a heavy media separation system in a coal washing plant provided by this utility model includes: a cyclone dust collector body, which includes a straight section, a conical section, and an ash discharge pipe. Two support plates are fixedly installed on the outer wall of the cyclone dust collector body. An installation box is fixedly installed on one side of one of the support plates. A rotating sleeve is rotatably installed on the installation box. The top and bottom ends of the rotating sleeve extend outside the installation box. The ash discharge pipe passes through the rotating sleeve and does not contact the inner wall of the rotating sleeve. A U-shaped rotating frame is fixedly fitted on the rotating sleeve. The U-shaped rotating frame is located above the installation box. Connecting rods are slidably installed on both sides of the U-shaped rotating frame. Connecting rods are fixedly installed at the ends of the two connecting rods that are close to each other. Each of the two connecting strips has two first arc-shaped impact plates and two second arc-shaped impact plates fixedly installed on the side closest to each other. The inner walls of the four first arc-shaped impact plates are all in contact with the outer wall of the straight section, and the inner walls of the four second arc-shaped impact plates are all in contact with the outer wall of the conical section. The ends of the two connecting rods that are far apart from each other are fixedly installed with toothed arms. Mounting back plates are fixedly installed on both outer walls of the U-shaped rotating frame. Rotating shafts are rotatably installed on the two mounting back plates. Toothed gears are fixedly sleeved on the two rotating shafts. The two toothed gears are respectively adapted to the two toothed arms. The U-shaped rotating frame is provided with a spring mechanism to drive the connecting strip to spring back, so that the first arc-shaped impact plates and the second arc-shaped impact plates form an impact effect on the cyclone dust collector body.

[0007] Preferably, the rebound mechanism includes two guide rods, which are slidably mounted on both sides of the U-shaped rotating frame. The ends of the two guide rods that are close to each other are fixedly connected to the two connecting strips, and the ends of the two guide rods that are far apart from each other are fixedly mounted with a station plate. The bottom of the two station plates is fixedly connected to the two toothed arms, and a return spring is sleeved on each of the two guide rods. The ends of the two return springs that are close to each other are fixedly connected to the outer walls of both sides of the U-shaped rotating frame, and the ends of the two return springs that are far apart from each other are fixedly connected to the two station plates.

[0008] Preferably, a first servo motor is fixedly mounted on each of the two mounting back plates, and the output shafts of the two first servo motors are respectively fixedly connected to the ends of the two rotating shafts.

[0009] Preferably, a transverse connecting arm is fixedly installed on one of the support frame plates. One side of the transverse connecting arm is fixedly connected to the mounting box. A second servo motor is fixedly installed on the outer wall of the mounting box away from the transverse connecting arm. The output shaft of the second servo motor extends into the mounting box and is rotatably connected to the mounting box. Both the output shaft of the second servo motor and the rotating sleeve are fixedly fitted with bevel teeth, and the two bevel teeth mesh with each other.

[0010] Preferably, both sides of the U-shaped rotating frame are fixedly equipped with protective covers by bolts, and the two toothed arms, two toothed gears, two station plates, and two return springs are all located inside the corresponding protective covers.

[0011] Preferably, the mounting box has an inspection port on one side, and the inspection port side of the mounting box has a sealed inspection door.

[0012] Preferably, both support plates are provided with clearance openings, and the diameter of the two clearance openings is larger than the outer dimensions of the two protective covers.

[0013] Compared with related technologies, the cyclone dust collector of the heavy media separation system in the coal washing plant provided by this utility model has the following beneficial effects:

[0014] This invention utilizes a first and second arc-shaped impact plate, along with the meshing between a toothed gear and a toothed arm, and the resetting action of a return spring, to create an impact effect on the outer wall of the cyclone dust collector body. This effectively shakes off the dust adhering to the inner wall, preventing caking and allowing the cyclone dust collector body to be cleaned and maintained without stopping operation. This enables the cyclone dust collector body to be used continuously for extended periods. Furthermore, the meshing of the two bevel teeth drives the rotating sleeve and U-shaped rotating frame to rotate, thereby creating a uniform impact on the surface of the cyclone dust collector body, improving the dust removal and anti-caking effects. Attached Figure Description

[0015] Figure 1 A front view schematic diagram of the cyclone dust removal device in the heavy media separation system of a coal washing plant provided by this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the cyclone dust collector body in this utility model;

[0017] Figure 3 This is an assembly diagram of the mounting box and the U-shaped rotating frame in this utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the mounting box in this utility model;

[0019] Figure 5This is a schematic diagram of the assembly of the toothed arm and the toothed wheel in this utility model.

[0020] The following are the labels in the diagram: 1. Cyclone dust collector body; 101. Straight cylinder section; 102. Conical cylinder section; 103. Ash discharge pipe; 2. Support frame plate; 3. Horizontal connecting arm; 4. Mounting box; 5. Rotating sleeve; 6. U-shaped rotating frame; 7. Connecting rod; 8. Connecting strip; 9. First arc-shaped impact plate; 10. Second arc-shaped impact plate; 11. Toothed arm; 12. Station plate; 13. Guide rod; 14. Return spring; 15. Protective cover; 16. Mounting back plate; 17. Rotating shaft; 18. Toothed gear. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please refer to the following: Figures 1-5The cyclone dust collector of the heavy media separation system in a coal washing plant includes: a cyclone dust collector body 1, which includes a straight section 101, a conical section 102, and an ash discharge pipe 103. Two support plates 2 are fixedly installed on the outer wall of the cyclone dust collector body 1. A mounting box 4 is fixedly installed on one side of one of the support plates 2. A rotating sleeve 5 is rotatably installed on the mounting box 4, and the top and bottom ends of the rotating sleeve 5 extend outside the mounting box 4. The ash discharge pipe 103 passes through the rotating sleeve 5 and does not contact the inner wall of the rotating sleeve 5. Furthermore, a U-shaped rotating frame 6 is fixedly fitted onto the rotating sleeve 5. This U-shaped rotating frame 6 is located above the mounting box 4. Connecting rods 7 are slidably mounted on both sides of the U-shaped rotating frame 6. Connecting strips 8 are fixedly mounted on the ends of the two connecting rods 7 that are close to each other. Two first arc-shaped impact pieces 9 and two second arc-shaped impact pieces 10 are fixedly mounted on the sides of the two connecting strips 8 that are close to each other. The inner walls of the four first arc-shaped impact pieces 9 are in contact with the outer wall of the straight section 101, and the inner walls of the four second arc-shaped impact pieces 10 are in contact with the outer wall of the conical section 102. Two connecting rods 7 are each fixedly mounted with toothed arms 11 at their far ends. Mounting back plates 16 are fixedly mounted on the outer walls of both sides of the U-shaped rotating frame 6. Rotating shafts 17 are rotatably mounted on both mounting back plates 16. Toothed gears 18 are fixedly fitted onto both rotating shafts 17, and each toothed gear 18 is adapted to fit one of the two toothed arms 11. First servo motors are fixedly mounted on both mounting back plates 16, and the output shafts of the two first servo motors are fixedly connected to the ends of the two rotating shafts 17. Furthermore, a spring mechanism is provided on the U-shaped rotating frame 6. The mechanism is used to drive the connecting bar 8 to rebound, so that the first arc-shaped impact plate 9 and the second arc-shaped impact plate 10 can impact the cyclone dust collector body 1. When the first servo motor is running, the intermittent meshing between the toothed gear 18 and the toothed arm 11 can first separate the first arc-shaped impact plate 9 and the second arc-shaped impact plate 10 from the cyclone dust collector body 1. Then, under the action of the return spring 14, the first arc-shaped impact plate 9 and the second arc-shaped impact plate 10 can impact the cyclone dust collector body 1, thereby forming an impact effect and playing the role of dust removal.

[0023] The aforementioned rebound mechanism includes two guide rods 13, which are slidably installed on both sides of the U-shaped rotating frame 6. The ends of the two guide rods 13 that are close to each other are fixedly connected to two connecting strips 8, and the ends of the two guide rods 13 that are far apart from each other are fixedly installed with station plates 12. The bottom of the two station plates 12 are fixedly connected to two toothed arms 11, and each guide rod 13 is fitted with a return spring 14. The ends of the two return springs 14 that are close to each other are fixedly connected to the outer walls of both sides of the U-shaped rotating frame 6, and the ends of the two return springs 14 that are far apart from each other are fixedly connected to the two station plates 12. In this way, the connecting strips 8 can be rebounded, so that the first arc-shaped impact piece 9 and the second arc-shaped impact piece 10 impact the cyclone dust collector body 1.

[0024] In this method, in order to drive the first arc-shaped impact piece 9 and the second arc-shaped impact piece 10 to form a rotational impact action, a transverse connecting arm 3 is fixedly installed on one of the support frame plates 2. One side of the transverse connecting arm 3 is fixedly connected to the mounting box 4. A second servo motor is fixedly installed on the outer wall of the mounting box 4 away from the transverse connecting arm 3. Its output shaft extends into the mounting box 4 and is rotatably connected to the mounting box 4. Both the output shaft of the second servo motor and the rotating sleeve 5 are fixedly fitted with bevel teeth. The two bevel teeth mesh with each other. By using the meshing of the two bevel teeth, the U-shaped rotating frame 6 can be driven to rotate when the second servo motor is running, thereby causing the first arc-shaped impact piece 9 and the second arc-shaped impact piece 10 to perform a rotational impact.

[0025] In this method, in order to protect the toothed gear 18, toothed arm 11 and two bevel teeth, protective covers 15 are fixedly installed on both sides of the U-shaped rotating frame 6 by bolts. The two toothed arms 11, the two toothed gears 18, the two station plates 12 and the two return springs 14 are all located inside the corresponding protective covers 15. One side of the mounting box 4 is provided with an inspection port, and the inspection port side of the mounting box 4 is provided with a sealed inspection door. The internal components can be inspected and maintained by removing the inspection door later. In order not to obstruct the removal of the protective cover 15, clearance openings are provided on both support frame plates 2. The diameter of the two clearance openings is larger than the outer dimensions of the two protective covers 15. When the protective cover 15 is rotated between the two support frame plates 2, the clearance openings can provide sufficient space for disassembly and assembly.

[0026] The working principle of the cyclone dust collector in the heavy media separation system of the coal washing plant provided by this utility model is as follows:

[0027] When the cyclone dust collector body 1 is working, its ash discharge pipe 103 is connected to the external ash hopper or collection box.

[0028] During the operation of the cyclone dust collector body 1, two first servo motors can be started simultaneously. The output shafts of the two first servo motors drive two toothed gears 18 to rotate. When the two toothed gears 18 contact the teeth on the corresponding toothed arms 11, a meshing effect is formed, causing the two toothed arms 11 to move away from each other. This allows the first arc-shaped impact plate 9 and the second arc-shaped impact plate 10 to separate from the cyclone dust collector body 1. At this time, the return spring 14 is compressed and gradually reaches a deep compression state until the teeth on the toothed gears 18 separate from the teeth on the toothed arms 11. Then, the compressed return spring 14 instantly rebounds, causing the first arc-shaped impact plate 9 and the second arc-shaped impact plate 10 to... The impact on the straight section 101 and the conical section 102 shakes off the dust adhering to their inner walls. The vibration force generated by the impact is also partially transmitted to the ash discharge pipe 103, causing the dust adhering to the inner wall of the ash discharge pipe 103 to also be shaken off. When the teeth on the toothed gear 18 mesh with the teeth on the toothed arm 11 again, the first arc-shaped impact plate 9 and the second arc-shaped impact plate 10 are separated from the cyclone dust collector body 1. When the teeth of the two separate again, the first arc-shaped impact plate 9 and the second arc-shaped impact plate 10 will then impact the straight section 101 and the conical section 102 again. This process is repeated, effectively preventing the adhesion and caking of dust during the operation of the cyclone dust collector body 1.

[0029] While the first servo motor is running, in order to create a uniform impact on the cyclone dust collector body 1, the second servo motor can be started in the forward direction. Its output shaft drives the corresponding bevel gear to rotate, which in turn drives the rotating sleeve 5 and the U-shaped rotating frame 6 to rotate. During the rotation, the first arc-shaped impact plate 9 and the second arc-shaped impact plate 10 can impact different parts on the straight cylinder section 101 and the conical cylinder section 102. After the U-shaped rotating frame 6 has rotated one revolution, the second servo motor can be started in the reverse direction, causing the U-shaped rotating frame 6 to rotate in the opposite direction. After it has rotated one revolution in the reverse direction, the second servo motor is started in the forward direction again. This process is repeated to make the U-shaped rotating frame 6 perform alternating forward and reverse motion, which improves the uniformity of impact and also prevents the circuit of the first servo motor from becoming disordered.

[0030] Compared with related technologies, the cyclone dust collector of the heavy media separation system in the coal washing plant provided by this utility model has the following beneficial effects:

[0031] This utility model provides a cyclone dust collector for a heavy media separation system in a coal washing plant. Through the engagement of a first arc-shaped impact plate 9 and a second arc-shaped impact plate 10, and the meshing between a toothed gear 18 and a toothed arm 11, and under the reset action of a return spring 14, an impact effect is achieved on the outer wall of the cyclone dust collector body 1. This dislodging of dust adhering to the inner wall effectively prevents caking, allowing the cyclone dust collector body 1 to be cleaned and maintained without shutdown, thus enabling continuous long-term use. Furthermore, the meshing of the two bevel teeth drives the rotating sleeve 5 and the U-shaped rotating frame 6 to rotate, resulting in a uniform impact on the surface of the cyclone dust collector body 1, improving the dust removal and anti-caking effects.

[0032] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A cyclone dust collector for a heavy media separation system in a coal washing plant, comprising a cyclone dust collector body, wherein the cyclone dust collector body includes a straight section, a conical section, and an ash discharge pipe, characterized in that, Two support plates are fixedly installed on the outer wall of the cyclone dust collector body. A mounting box is fixedly installed on one side of one of the support plates. A rotating sleeve is rotatably mounted on the mounting box. The top and bottom ends of the rotating sleeve extend outside the mounting box. The ash discharge pipe passes through the rotating sleeve and does not contact the inner wall of the rotating sleeve. A U-shaped rotating frame is fixedly fitted on the rotating sleeve, located above the mounting box. Connecting rods are slidably installed on both sides of the U-shaped rotating frame. Connecting strips are fixedly installed at the ends of the two connecting rods that are close to each other. Two first arc-shaped impact plates and two second arc-shaped impact plates are fixedly installed on the sides of the two connecting strips that are close to each other. The inner walls of the four first arc-shaped impact plates are all in contact with the outer wall of the straight section, and the inner walls of the four second arc-shaped impact plates are all in contact with the outer wall of the conical section. Toothed arms are fixedly installed at the ends of the two connecting rods that are far apart from each other. Mounting back plates are fixedly installed on both outer walls of the U-shaped rotating frame. Rotating shafts are rotatably mounted on both mounting back plates. Toothed gears are fixedly fitted onto both rotating shafts, and the two toothed gears are respectively adapted to the two toothed arms. A spring-loaded mechanism is provided on the U-shaped rotating frame to drive the connecting strip to spring back, so that the first and second arc-shaped impact plates impact the cyclone dust collector body.

2. The cyclone dust collector of the heavy media separation system in a coal washing plant according to claim 1, characterized in that, The rebound mechanism includes two guide rods, which are slidably mounted on both sides of the U-shaped rotating frame. The ends of the two guide rods that are close to each other are fixedly connected to the two connecting strips, and the ends of the two guide rods that are far apart from each other are fixedly mounted with a station plate. The bottom of the two station plates is fixedly connected to the two toothed arms, and a return spring is sleeved on each of the two guide rods. The ends of the two return springs that are close to each other are fixedly connected to the outer walls of both sides of the U-shaped rotating frame, and the ends of the two return springs that are far apart from each other are fixedly connected to the two station plates.

3. The cyclone dust collector of the heavy media separation system in a coal washing plant according to claim 2, characterized in that, A first servo motor is fixedly mounted on each of the two mounting back plates, and the output shafts of the two first servo motors are respectively fixedly connected to the ends of the two rotating shafts.

4. The cyclone dust collector of the heavy media separation system in a coal washing plant according to claim 1, characterized in that, A transverse connecting arm is fixedly installed on one of the support frames. One side of the transverse connecting arm is fixedly connected to the mounting box. A second servo motor is fixedly installed on the outer wall of the mounting box away from the transverse connecting arm. The output shaft of the second servo motor extends into the mounting box and is rotatably connected to the mounting box. Both the output shaft of the second servo motor and the rotating sleeve are fixedly fitted with bevel teeth, and the two bevel teeth mesh with each other.

5. The cyclone dust collector of the heavy media separation system in a coal washing plant according to claim 2, characterized in that, Both sides of the U-shaped rotating frame are fixed with protective covers by bolts. The two toothed arms, two toothed gears, two station plates, and two return springs are all located inside the corresponding protective covers.

6. The cyclone dust collector for a heavy media separation system in a coal washing plant according to claim 1, characterized in that, The mounting box has an inspection port on one side, and the inspection port side of the mounting box has a sealed inspection door.

7. The cyclone dust collector for a heavy media separation system in a coal washing plant according to claim 5, characterized in that, Both of the support plates are provided with clearance openings, and the diameter of the two clearance openings is larger than the outer dimensions of the two protective covers.

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