A wall-free split bin system

Abstract

The present application provides a wall-free split bin system, which belongs to the field of coal storage technology, and comprises an upper fixed bin, a lower fixed bin and a rotating bin, wherein the upper fixed bin and the lower fixed bin are fixedly connected by an external truss, and the rotating bin is connected in series between the upper fixed bin and the lower fixed bin; the rotating bin is composed of two conical rings rotatably connected between the upper fixed bin and the lower fixed bin, and the two conical rings are rotatably connected in the form of up and down stacking, and the diameter of the whole composed of the upper fixed bin, the lower fixed bin and the two conical rings decreases from top to bottom, and scrapers are provided on the inner walls of the two conical rings, and the adjacent ends of the two scrapers are vertically slidably connected with conical scrapers through elastic parts, and the adjacent ends of the two scrapers are provided with avoidance gaps that match the inclined surfaces of the conical scrapers; a driving assembly is provided at the junction of the upper fixed bin and the lower fixed bin; the present application can reduce the probability of occurrence of cleaning dead corners while avoiding scraper interference.

Description

Technical Field

[0001] The present application relates to the technical field of coal storage, and in particular to a wall-free split bin system. Background Art

[0002] As a special type of raw coal bunker, the split bunker is mainly used for the storage of raw coal, coal slime and other granular materials in thermal power plants. Compared with conventional raw coal bunkers, the split bunker adopts the method of adding partitions in the middle of the bunker to make it have multiple bunker bodies. Therefore, during the peak production period, the split bunker can keep other bunkers working when one bunker is congested, ensuring normal production during the peak production period. At the same time, in order to prevent the coal inside the split bunker from sticking to the wall and arching during the discharge process, a non-sticky anti-blocking bunker is often installed at the bottom of the split bunker to remove the coal from the bunker in time.

[0003] The existing non-sticky wall anti-blocking bin is usually composed of two fixed bins and one rotating bin. The rotating bin is located between the two fixed bins and is equipped with a rotating scraper. When working, the two fixed bins are fixed, and the rotating scraper inside the rotating bin moves relative to the two fixed bins to make the coal material adhered to the inner wall of the fixed bin fall off, thereby ensuring the smooth flow of coal material inside the fixed bin. Since the rotating bin is an auxiliary structure and is not easy to disassemble, in order to prevent the coal material from being blocked inside the rotating bin, the coal material adhered to the inner wall of the rotating bin needs to be removed in time during its working process.

[0004] Referring to the Chinese patent document with announcement number CN103708135B and announcement date May 4, 2016, entitled A material blockage clearing machine for non-sticky wall materials, during the rotation of the rotating bin, the rotating scrapers installed at the upper and lower ends of the rotating bin can be used to clean the materials adhered to the inner walls of the upper and lower fixed bins. At the same time, the stationary scrapers arranged inside the two fixed bins can be used to clean the materials adhered to the inner walls of the rotating bin, thereby solving the problem of material blockage.

[0005] Referring to the above technical solution, in order to avoid interference between the rotating scraper and the stationary scraper, it is necessary to make the rotating bin rotate alternately in forward and reverse directions, but this method easily leads to cleaning dead corners in the area near the stationary scraper, thereby affecting the overall clearing effect; in addition, in order to prevent the scraper from causing greater wear on the bin wall, the scraper and the bin wall are usually set in a clearance fit manner (that is, there is a certain gap between the scraper and the bin wall). In this case, with the long-term development of the clearing work, it is inevitable that fine coal will gather between the scraper and the bin wall. When the fine coal that has been gathered for a long time becomes compacted and falls in large chunks, coal blockage may still occur. Summary of the invention

[0006] In view of this, the present application provides a wall-free split bin system, which is mainly used to solve the problem of cleaning dead corners in the area near the scraper when the rotating bin is running in an alternating forward and reverse manner.

[0007] In order to solve the above technical problems, the present application provides a non-stick wall splitting bin system, including an upper fixed bin, a lower fixed bin and a rotating bin, wherein the upper fixed bin and the lower fixed bin are fixedly connected by an external truss, and the rotating bin is connected in series between the upper fixed bin and the lower fixed bin; the rotating bin is composed of two conical rings rotatably connected between the upper fixed bin and the lower fixed bin, and the two conical rings are rotatably connected in the form of up and down stacking, and the diameter of the whole composed of the upper fixed bin, the lower fixed bin and the two conical rings decreases from top to bottom, and scrapers are provided on the inner walls of the two conical rings, and the two scrapers can clean the inner walls of the upper fixed bin and the lower fixed bin respectively, and the close ends of the two scrapers are vertically slidably connected with conical scrapers through elastic parts, and the two conical scrapers are used to clean the inner walls of the conical rings where each other is located, and the close ends of the two scrapers are provided with avoidance gaps that match the inclined surfaces of the conical scrapers; the connection between the upper fixed bin and the lower fixed bin is provided with a driving component for driving the two conical rings to rotate independently in opposite directions.

[0008] By adopting the above technical solution, two scrapers with different rotation directions are used to complete the cleaning of the inner walls of the upper fixed bin and the lower fixed bin. At the same time, two conical scrapers with telescopic avoidance functions are used to complete the cleaning of the inner wall of the rotating bin. This can avoid scraper interference and reduce the probability of cleaning dead corners.

[0009] Optionally, the drive assembly includes two servo motors respectively arranged on the upper fixed bin and the lower fixed bin, and a driving gear is arranged on the output shafts of the two servo motors, and a large diameter gear ring is fixedly sleeved on the outside of the two conical rings, and the two driving gears correspond to and mesh with the two large diameter gear rings one by one.

[0010] By adopting the above technical solution, two servo motors are used to independently drive the two conical rings to move, and the two conical rings can also have a certain rotation speed difference to meet different usage requirements.

[0011] Optionally, the two scrapers are both arranged in an arc shape, and the thickness of the scrapers increases gradually from the trough position to the peak position along the rotation direction of the conical ring where the scrapers are located.

[0012] By adopting the above technical solution, the scraped coal can be made closer to the center of the upper fixed bin and the lower fixed bin, which is beneficial to the rapid falling of the coal.

[0013] Optionally, the outer surfaces of the two scrapers are rotatably connected to a plurality of rollers, and the rollers on the two scrapers can respectively abut against the inner walls of the upper fixed bin and the lower fixed bin.

[0014] By adopting the above technical solution, the fine coal materials on the inner walls of the upper fixed bin and the lower fixed bin can be rubbed off in a rolling friction manner.

[0015] Optionally, the bearing plate where the rubbing roller is located is radially slidably connected to the scraper, the sliding cavity where the bearing plate is located is connected to the sliding cavity where the conical scraper is located, and the bearing plate and the conical scraper are arranged in a hydraulically matched manner.

[0016] By adopting the above technical solution, the rubbing roller can be periodically contacted with the inner wall of the upper fixed bin or the lower fixed bin, thereby reducing the wear on the inner walls of the upper fixed bin and the lower fixed bin.

[0017] Optionally, the fracturing plates arranged in a circumferential array on the outer surface of the rubbing roller are all arranged in a spiral shape.

[0018] By adopting the above technical solution, it is possible to make contact with fine coal materials with greater friction, thereby improving the cleaning effect of the rubbing roller.

[0019] Optionally, the opposite ends of the two scrapers extend to the outside of the upper fixed bin and the lower fixed bin respectively.

[0020] By adopting the above technical solution, it is possible to provide a guiding effect for the coal to a certain extent, thereby improving the smoothness of the coal inside the separation bin.

[0021] Optionally, a vibration motor is provided on the outer surface of the lower fixed bin.

[0022] By adopting the above technical solution, when the vibration motor generates mechanical vibration, part of the coal attached to the silo wall can be shaken off, further improving the coal cleaning effect.

[0023] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0024] 1. Using two scrapers rotating in different directions to complete the warehouse wall cleaning work can cover a larger area and make the cleaning work more efficient. Adding a scraper with adaptive telescopic function to the scraper to complete the inner wall cleaning of the rotating warehouse can reduce the probability of cleaning dead corners compared to the method of alternating forward and reverse rotation of the rotating warehouse, thereby improving the overall cleaning effect.

[0025] 2. During the continuous rotation of the scraper, the rubbing roller can be used to intermittently rub off the fine coal materials that may exist between the scraper and the silo wall, reducing the probability of the fine coal materials becoming compacted due to long-term aggregation, thereby reducing the possibility of silo blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a structural schematic diagram of a wall-free split bin system for this application;

[0027] Figure 2 This is a cross-sectional view of the upper fixed bin and the lower fixed bin of the present application;

[0028] Figure 3 This is a schematic diagram of the structure of the conical ring and the scraper of this application;

[0029] Figure 4 This is a schematic diagram of the structure of the scraper and the carrier plate of this application;

[0030] Figure 5 This is a schematic structural diagram of the rubbing roller of this application.

[0031] Explanation of the reference numerals: 1. Upper fixed bin; 2. Lower fixed bin; 3. Rotating bin; 31. Conical ring; 4. Scraper; 41. Conical scraper; 42. Avoidance; 5. Driving assembly; 51. Servo motor; 52. Driving gear; 53. Large diameter gear ring; 6. Rubbing roller; 7. Loading plate; 8. Vibration motor. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the embodiments of the present application. Figure 1-Figure 5 , the technical scheme of the embodiment of the present application is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the present application, not all of the embodiments. Based on the described embodiment of the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0033] Reference Figure 1 and Figure 2 The present embodiment provides a wall-free splitting bin system, comprising an upper fixed bin 1, a lower fixed bin 2, a rotating bin 3, a scraper assembly and a driving assembly 5. The upper fixed bin 1 and the lower fixed bin 2 are fixedly connected by an external truss, the rotating bin 3 is composed of two conical rings 31 rotatably connected between the upper fixed bin 1 and the lower fixed bin 2, and the two conical rings 31 are rotatably connected in the form of stacking up and down, and the diameter of the whole composed of the upper fixed bin 1, the lower fixed bin 2 and the two conical rings 31 decreases from top to bottom; the driving assembly 5 is arranged at the junction of the upper fixed bin 1 and the lower fixed bin 2, and is used to drive the two conical rings 31 to rotate independently in opposite directions.

[0034] Among them, refer to Figure 2 and Figure 3The scraper assembly includes two scrapers 4, two conical scrapers 41 and two avoidance holes 42. The two scrapers 4 are respectively arranged on the inner walls of the two conical rings 31, and the two scrapers 4 can clean the inner walls of the upper fixed bin 1 and the lower fixed bin 2 respectively. The two conical scrapers 41 are respectively connected to the adjacent ends of the two scrapers 4 by vertical sliding through elastic members. The two avoidance holes 42 are respectively opened at the adjacent ends of the two scrapers 4, and the avoidance holes 42 can match the inclined surfaces of the conical scrapers 41.

[0035] Among them, refer to Figure 2 and Figure 3 The driving assembly 5 includes two servo motors 51, two driving gears 52 and two large-diameter gear rings 53. The two servo motors 51 are respectively arranged on the outer surfaces of the upper fixed bin 1 and the lower fixed bin 2, the two driving gears 52 are respectively arranged on the output shafts of the two servo motors 51, and the two large-diameter gear rings 53 are respectively arranged outside the two conical rings 31 in a fixed sleeve manner, and the two driving gears 52 correspond to and mesh with the two large-diameter gear rings 53 one by one.

[0036] When cleaning the bin wall, the two servo motors 51 are running, and the two conical rings 31 are independently rotated in opposite directions through the step-by-step transmission of the driving gear 52 and the large-diameter gear ring 53. In this state, the two scrapers 4 can clean the inner walls of the upper fixed bin 1 and the lower fixed bin 2 respectively, and the two conical scrapers 41 can clean the inner walls of the two conical rings 31 respectively.

[0037] When the inclined surface of the conical scraper 41 contacts the avoidance opening 42, as the conical ring 31 continues to rotate, the pressure generated by the avoidance opening 42 on the conical scraper 41 will overcome the elastic force of the elastic member and retract into the scraper 4, thereby avoiding the interference of the two conical scrapers 41 and reducing the probability of cleaning dead corners. When the two scrapers 4 are misaligned, the conical scraper 41 will automatically reset due to the elastic force of the elastic member and will be put into the cleaning work of the inner wall of the conical ring 31 again.

[0038] Reference Figure 3 and Figure 4 The two scrapers 4 are both arranged in an arc shape, and the thickness of the scrapers 4 increases from the trough position to the peak position along the rotation direction of the conical ring 31 where the scrapers 4 are located.

[0039] When the coal on the inner walls of the upper fixed bin 1 and the lower fixed bin 2 is scraped off by the scraper 4, the coal will first contact the trough position of the scraper 4. As the scraper 4 rotates, the coal will gradually transfer to the peak position of the scraper 4, making the scraped coal closer to the center position of the upper fixed bin 1 and the lower fixed bin 2, thereby reducing the possibility of the coal adhering to the bin wall again.

[0040] Reference Figure 4 and Figure 5, both scrapers 4 are provided with a gap cleaning assembly for cleaning the fine coal material between the scraper 4 and the silo wall. The gap cleaning assembly includes a bearing plate 7 and a rubbing roller 6, wherein the bearing plate 7 is radially slidably connected to the scraper 4 with the conical ring 31 as a reference, the sliding cavity where the bearing plate 7 is located is connected to the sliding cavity where the conical scraper 41 is located, and the bearing plate 7 and the conical scraper 41 are arranged in a hydraulically matched manner. When the conical scraper 41 shrinks into the sliding cavity, the bearing plate 7 will move to the outside of the sliding cavity due to the push of the hydraulic oil; conversely, when the conical scraper 41 extends from the inside of the sliding cavity, the bearing plate 7 will move to the inside of the sliding cavity due to the negative pressure inside the sliding cavity. The rubbing roller 6 is rotatably connected to the outer surface of the bearing plate 7, and the rubbing roller 6 located inside the upper fixed silo 1 can abut against the inner wall of the upper fixed silo 1, and the rubbing roller 6 located inside the lower fixed silo 2 can abut against the inner wall of the lower fixed silo 2.

[0041] When the conical scraper 41 retracts into the scraper 4 to avoid the pressure generated by the gap 42, the supporting plate 7 will approach the inner wall of the upper fixed bin 1 or the lower fixed bin 2 due to the push of the hydraulic oil until the rubbing roller 6 abuts against the inner wall of the upper fixed bin 1 or the lower fixed bin 2. At this time, with the rotation of the conical ring 31, the rubbing roller 6 can rub off the fine coal material that may remain on the inner wall of the upper fixed bin 1 or the lower fixed bin 2, thereby reducing the probability of the fine coal material becoming compacted due to long-term aggregation.

[0042] In addition, the two servo motors 51 can adjust the rotation speed of the two conical rings 31 according to the cleaning requirements, change the frequency of the two conical scrapers 41 performing the avoidance action during one rotation of the conical ring 31, and thus change the frequency of the contact between the rubbing roller 6 and the warehouse wall.

[0043] Among them, refer to Figure 5 The frusto plates arranged in a circumferential array on the outer surface of the rubbing roller 6 are all arranged in a spiral shape.

[0044] The spirally arranged fracturing plate on the outer surface of the rubbing roller 6 can come into contact with the fine coal material with a greater friction force, thereby improving the cleaning effect of the rubbing roller 6.

[0045] Reference Figure 1 and Figure 2 The opposite ends of the two scrapers 4 extend to the outside of the upper fixed bin 1 and the lower fixed bin 2 respectively.

[0046] When the opposite ends of the two scrapers 4 extend to the outside of the upper fixed bin 1 and the lower fixed bin 2 respectively, the upper scraper 4 can be extended into the upper connecting device of the upper fixed bin 1, and the lower scraper 4 can be extended into the lower connecting device of the lower fixed bin 2, which can improve the smooth passage of coal to a certain extent.

[0047] Reference Figure 1 A vibration motor 8 is provided on the outer surface of the lower fixed bin 2.

[0048] The mechanical vibration generated by the vibration motor 8 can shake off part of the coal attached to the silo wall, further improving the coal cleaning effect.

[0049] The implementation principle of the wall-free splitting bin system in the present application embodiment is as follows:

[0050] When cleaning the bin wall, the two servo motors 51 are running, and the two conical rings 31 are independently rotated in opposite directions through the step-by-step transmission of the driving gear 52 and the large-diameter gear ring 53. In this state, the two scrapers 4 can clean the inner walls of the upper fixed bin 1 and the lower fixed bin 2 respectively, and the two conical scrapers 41 can clean the inner walls of the two conical rings 31 respectively.

[0051] When the inclined surface of the conical scraper 41 contacts the avoidance gap 42, as the conical ring 31 continues to rotate, the pressure generated by the avoidance gap 42 on the conical scraper 41 will overcome the elastic force of the elastic member and retract into the scraper 4, thereby avoiding interference between the two conical scrapers 41 and reducing the probability of cleaning dead corners.

[0052] At the same time, the support plate 7 will approach the inner wall of the upper fixed bin 1 or the lower fixed bin 2 due to the push of the hydraulic oil until the rubbing roller 6 abuts against the inner wall of the upper fixed bin 1 or the lower fixed bin 2. At this time, with the rotation of the conical ring 31, the rubbing roller 6 can rub off the fine coal material that may remain on the inner wall of the upper fixed bin 1 or the lower fixed bin 2, thereby reducing the probability of the fine coal material becoming compacted due to long-term aggregation.

[0053] In addition, it should be noted that in the description of this application, 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 this application can be understood according to specific circumstances.

[0054] The above is a preferred embodiment of the present application. 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 described in the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A wall-free splitting bin system, comprising an upper fixed bin, a lower fixed bin and a rotating bin, wherein: The upper fixed bin and the lower fixed bin are fixedly connected by an external truss, and the rotating bin is connected in series between the upper fixed bin and the lower fixed bin, and is characterized in that: The rotating bin is composed of two conical rings rotatably connected between the upper fixed bin and the lower fixed bin, and the two conical rings are rotatably connected in the form of being stacked up and down, and the diameter of the whole composed of the upper fixed bin, the lower fixed bin and the two conical rings decreases from top to bottom, and the inner walls of the two conical rings are provided with scrapers, and the two scrapers can clean the inner walls of the upper fixed bin and the lower fixed bin respectively, and the adjacent ends of the two scrapers are vertically slidably connected with conical scrapers through elastic parts, and the two conical scrapers are used to clean the inner walls of the conical rings where each other is located, and the adjacent ends of the two scrapers are provided with avoidance gaps that match the inclined surfaces of the conical scrapers; A driving assembly is provided at the connection between the upper fixed bin and the lower fixed bin to drive the two conical rings to rotate independently in opposite directions; The outer surfaces of the two scrapers are rotatably connected with a plurality of rollers, and the rollers on the two scrapers can respectively abut against the inner walls of the upper fixed bin and the lower fixed bin; The bearing plate where the rubbing roller is located is radially slidably connected to the scraper, the sliding cavity where the bearing plate is located is communicated with the sliding cavity where the conical scraper is located, and the bearing plate and the conical scraper are arranged in a hydraulically matched manner.

2. The wall-free partitioning system according to claim 1, characterized in that: The driving assembly includes two servo motors respectively arranged on the upper fixed bin and the lower fixed bin, and the output shafts of the two servo motors are provided with driving gears, and the outsides of the two conical rings are fixedly sleeved with large-diameter gear rings, and the two driving gears correspond to and mesh with the two large-diameter gear rings one by one.

3. The wall-free partitioning system according to claim 1, characterized in that: The two scrapers are both arranged in an arc shape, and the thickness of the scrapers increases gradually from the trough position to the peak position along the rotation direction of the conical ring where the scrapers are located.

4. The wall-free partitioning system according to claim 1, characterized in that: The frusto plates arranged in a circumferential array on the outer surface of the rubbing roller are all arranged in a spiral shape.

5. The wall-free partitioning system according to claim 1, characterized in that: The opposite ends of the two scrapers extend to the outside of the upper fixed bin and the lower fixed bin respectively.

6. The wall-free partitioning system according to claim 1, characterized in that: A vibration motor is arranged on the outer surface of the lower fixed bin.

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