Hyperbolic blanking bin for bulk materials

Abstract

The invention provides a bulk material hyperbolic curve blanking bin, which belongs to the technical field of coal storage, and comprises a bin body arranged in a hyperbolic curve conical hopper shape; the bin body is composed of an upper bin shell, a middle bin shell and a lower bin shell, the upper bin shell and the lower bin shell are fixedly connected through an external truss, and the middle bin shell is connected between the upper bin shell and the lower bin shell in series in a rotating connection mode. A flexible conical ring plate is connected between the inner side edges of the upper bin shell and the lower bin shell in series in a fixed connection mode, the flexible conical ring plate is located in the middle bin shell, the inner wall face of the middle bin shell is rotationally connected with a plurality of pressing wheels capable of being connected with the outer wall face of the flexible conical ring plate in an abutting mode, and the multiple pressing wheels are arranged along the inner wall face of the middle bin shell in an array mode in the vertical direction. A driving piece is arranged between the upper bin shell and the lower bin shell and used for driving the middle bin shell to rotate. Compared with a rotary dredging mode of the unblocking cutter, the probability of equipment damage can be reduced to a certain extent, and the blanking rate can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of coal storage, and in particular to a hyperbolic drop bin for bulk materials. Background Art

[0002] The hyperbolic drop silo is a device used for material storage and transportation, usually used in the industrial and construction fields. Its design feature is that the silo is in a hyperbolic shape, which helps to maintain the fluidity of the material, reduce the accumulation of materials on the silo wall, and also reduce the friction between the material and the silo wall, reduce the cohesion of the material, and improve the cleaning efficiency and discharge speed of the coal silo.

[0003] When a hyperbolic feeding silo is used for coal storage or feeding, due to changes in humidity and coal quality inside the feeding silo, the coal may still stick to the wall or form a shed during the flow process, affecting the normal flow of coal and feeding efficiency, making the maintenance and cleaning of the feeding silo complicated and difficult. Therefore, during the operation of the feeding silo, it is necessary to clear the blocked coal inside in time.

[0004] Referring to the Chinese patent application document with publication number CN116161346A and publication date May 26, 2023, entitled A multi-stage rotary blockage clearing device for a raw coal bunker applied to a sludge blending system, the coal bunker main body can be cleared and unblocked through the mutual cooperation of the first fixed bunker and the first rotating bunker and the first blockage clearing knife and the second blockage clearing knife, and the relative movement of the blockage clearing knife and the inner wall of the bunker body can further improve the efficiency of the blockage clearing work.

[0005] Referring to the above technical solution, when coal is blocked inside the discharge bin, the coal originally stored in the upper part of the discharge bin will compact the coal at the blocked position due to gravity. Therefore, when the discharge bin is unblocked by using a driving device to rotate the clearing knife, the compacted coal may produce a large rotational resistance to the clearing knife, thereby causing the clearing knife to be deformed and damaged or the driving device to be overloaded, thereby affecting the coal discharge rate. Summary of the invention

[0006] In view of this, the present application provides a hyperbolic bulk material discharge bin, which is mainly used to solve the problem that when a clearing knife is used to clear the discharge bin, the clearing knife is easily deformed and damaged due to the rotational resistance generated by compacting the coal, thereby affecting the coal discharge rate.

[0007] In order to solve the above-mentioned technical problems, the present application provides a hyperbolic drop bin for bulk materials, including a bin body, and the bin body is arranged in a hyperbolic cone bucket shape; the bin body is composed of an upper bin shell, a middle bin shell and a lower bin shell, the upper bin shell and the lower bin shell are fixedly connected by an external truss, and the middle bin shell is connected in series between the upper bin shell and the lower bin shell in a rotatable connection manner; a flexible cone ring plate is connected in series between the inner edges of the upper bin shell and the lower bin shell in a fixed connection manner, and the flexible cone ring plate is located inside the middle bin shell, and the inner wall surface of the middle bin shell is rotatably connected with a plurality of pressure wheels that can abut the outer wall surface of the flexible cone ring plate, and the plurality of pressure wheels are arranged in an array along the inner wall surface of the middle bin shell in the vertical direction; a driving member is arranged between the upper bin shell and the lower bin shell for driving the middle bin shell to rotate.

[0008] By adopting the above technical solution, with the cooperation of the pressure wheel and the flexible cone ring plate, the coal material adhered to the inner wall of the flexible cone ring plate can be detached by changing the curvature, thereby completing the clearing and unblocking work.

[0009] Optionally, the driving member includes a reduction motor arranged between the upper warehouse shell and the lower warehouse shell, a driving gear is arranged on the output shaft of the reduction motor, and a driven gear ring capable of meshing with the driving gear is arranged outside the middle warehouse shell.

[0010] By adopting the above technical solution, when the reduction motor drives the driving gear to rotate, the driven gear ring will also drive the middle housing to rotate together.

[0011] Optionally, the inner wall surface of the flexible cone ring plate is provided with a polyurethane coating, which is used to form a lubricating layer on the inner wall surface of the flexible cone ring plate to reduce the friction between the coal material and the flexible cone ring plate.

[0012] By adopting the above technical solution, the polyurethane coating can replace the flexible cone ring plate to contact the coal material, so as to avoid the coal material and the flexible cone ring plate from having a large friction and aggravating the occurrence of blockage.

[0013] Optionally, a lubrication mechanism is provided on the flexible cone ring plate to further increase the lubricity of the inner wall surface of the flexible cone ring plate.

[0014] Optionally, the lubrication mechanism includes a plurality of oil storage bags arranged in a circular array within the interlayer of the flexible cone ring plate, an annular oil storage box is arranged on the outer wall of the lower storage shell, an oil guide pipe connected to the bottom of each oil storage bag is connected to the annular oil storage box, a plurality of oil drain holes are opened on the inner wall surface of the flexible cone ring plate, and each oil drain hole is connected to the radially corresponding oil storage bag, and a one-way valve is connected in series inside each oil guide pipe and each oil drain hole.

[0015] By adopting the above technical solution, the oil storage bag and the oil drain hole can be filled with lubricating oil at the coal clearing position with the cooperation of the pressure wheel, thereby further improving the fluidity of the coal in the discharge bin.

[0016] Optionally, each of the oil drain holes is arranged to be inclined downward from the outside to the inside with respect to the central axis of the flexible cone ring plate.

[0017] By adopting the above technical solution, the probability of coal entering the oil drain hole and clogging it can be reduced to a certain extent.

[0018] Optionally, each of the oil storage bags is provided with an array of metal springs, which are arranged in an arc shape, and the concave arc surface of the metal spring is located on the side close to the central axis of the flexible cone ring plate, and the convex arc surface of the metal spring is located on the side away from the central axis of the flexible cone ring plate.

[0019] By adopting the above technical solution, due to the presence of the metal spring sheet, when the pressure wheel and the oil storage bag are misaligned, the metal spring sheet can reset the oil storage bag more quickly.

[0020] Optionally, the gap between two adjacent metal springs in the oil storage bag is smaller than the thickness of the pressing wheel, and the multiple metal springs inside a single oil storage bag correspond one-to-one to the pressing wheel.

[0021] By adopting the above technical solution, the pressure wheel can be prevented from getting stuck in the gap between two adjacent metal spring sheets, so that lubrication work can be carried out continuously.

[0022] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects: 1. Flexible materials are used as the bearing components for coal falling, and the flexible materials are circumferentially pressurized by means of a pressure wheel during the coal falling process, thereby changing the curvature of the pressed position of the flexible material, which can not only cause the coal adhering to the inner wall of the flexible material to detach, but also destroy the blocking state of the coal inside the falling bin. The combination of a pressure wheel and a flexible material is used to replace the existing rotary clearing knife to avoid direct contact between the clearing knife and the coal, which can reduce the probability of equipment damage to a certain extent and is conducive to improving the falling rate.

[0023] 2. During the coal dropping process, lubricating oil can be introduced into the coal clearing position as the curvature of the flexible material changes, reducing the friction between the coal and the flexible material, thereby improving the fluidity of the coal in the dropping bin and making it easier for the coal to drop.

[0024] 3. During the process of introducing the lubricating oil, due to the change in curvature of the flexible material, the lubricating oil can diffuse along the inner wall surface of the flexible material in the circumferential position, thereby increasing the coverage area of ​​the lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of the hyperbolic drop bin for bulk materials in this application; Figure 2 This is a cross-sectional view of the warehouse body of this application; Figure 3 For this application Figure 2 A partial enlarged view of the middle area A; Figure 4 This is a schematic diagram of the structure of the flexible conical ring plate and the annular oil storage box of this application.

[0026] Explanation of the accompanying drawings: 1. Warehouse body; 11. Upper warehouse shell; 12. Middle warehouse shell; 13. Lower warehouse shell; 2. Flexible cone ring plate; 3. Pressure wheel; 4. Driving member; 41. Reduction motor; 42. Driving gear; 43. Driven gear ring; 5. Lubricating mechanism; 51. Oil storage bag; 52. Annular oil storage box; 53. Oil guide pipe; 54. Oil drain hole; 55. One-way valve; 6. Metal spring. DETAILED DESCRIPTION

[0027] 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 4 , 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.

[0028] Reference Figure 1 , Figure 2 and Figure 3 The present embodiment provides a bulk material hyperbolic drop bin, comprising a bin body 1, a flexible conical ring plate 2, a pressure wheel 3 and a driving member 4. The bin body 1 is arranged in a hyperbolic cone bucket shape, and the bin body 1 is composed of an upper bin shell 11, a middle bin shell 12 and a lower bin shell 13. The upper bin shell 11 and the lower bin shell 13 are fixedly connected by an external truss, and the middle bin shell 12 is connected in series between the upper bin shell 11 and the lower bin shell 13 in a rotating connection manner.

[0029] Among them, refer to Figure 2 and Figure 3 The flexible cone ring plate 2 is connected in series between the inner edges of the upper silo shell 11 and the lower silo shell 13 in a fixed connection manner. The flexible cone ring plate 2 is located inside the middle silo shell 12. When the coal falls along the inner wall of the silo body 1, it will pass through the upper silo shell 11, the flexible cone ring plate 2 and the lower silo shell 13 in sequence. There are multiple pressing wheels 3, and the pressing wheels 3 are arranged in an array along the inner wall of the middle silo shell 12 in a rotationally connected manner in the vertical direction. When the pressing wheel 3 abuts against the outer wall of the flexible cone ring plate 2, the flexible cone ring plate 2 will deform and sag in the direction close to its own central axis.

[0030] Among them, refer to Figure 2The driving member 4 is arranged between the upper storage shell 11 and the lower storage shell 13, and is used to drive the middle storage shell 12 to rotate. The driving member 4 includes a reduction motor 41, a driving gear 42 and a driven gear ring 43. The reduction motor 41 is arranged between the upper storage shell 11 and the lower storage shell 13, the driving gear 42 is arranged on the output shaft of the reduction motor 41, and the driven gear ring 43 is arranged outside the middle storage shell 12, and the driven gear ring 43 is meshed with the driving gear 42. When the reduction motor 41 runs to drive the driving gear 42 to rotate, the driven gear ring 43 will drive the middle storage shell 12 to rotate together due to the meshing connection relationship between the driven gear ring 43 and the driving gear 42.

[0031] When coal is blocked during the material dropping process, the middle bin shell 12 is rotated through the cooperation of the driving member 4. At this time, the pressure wheel 3 will change its circumferential position with the rotation of the middle bin shell 12, thereby abutting against the outer wall of the flexible cone ring plate 2 at different circumferential positions. At this time, the flexible cone ring plate 2 will continuously change the curvature of the compressed position of its inner wall surface under the pushing and pressure of the pressure wheel 3, so as to separate the coal adhered to the inner wall surface of the flexible cone ring plate 2 from the flexible cone ring plate 2, and at the same time, it can destroy the blocked state of the coal inside the material dropping bin, so as to complete the clearing and dredging work.

[0032] Reference Figure 1 and Figure 2 The inner wall surface of the flexible cone ring plate 2 is provided with a polyurethane coating, which is used to form a lubricating layer on the inner wall surface of the flexible cone ring plate 2 to reduce the friction between the coal material and the flexible cone ring plate 2.

[0033] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The flexible cone ring plate 2 is provided with a lubricating mechanism 5, which includes an oil storage bag 51, an annular oil storage box 52, an oil guide pipe 53, an oil discharge hole 54 and a one-way valve 55. There are multiple oil storage bags 51, and the oil storage bags 51 are arranged in an annular array in the interlayer of the flexible cone ring plate 2. The annular oil storage box 52 is arranged on the outer wall of the lower warehouse shell 13, and the bottom of each oil storage bag 51 is connected to an oil guide pipe 53, and each oil guide pipe 53 is connected to the annular oil storage box 52; the oil discharge holes 54 are evenly arranged on the inner wall surface of the flexible cone ring plate 2, and each oil discharge hole 54 is connected to the radially corresponding oil storage bag 51; each oil guide pipe 53 and each oil discharge hole 54 are connected in series with a one-way valve 55. Among them, the oil inlet end of the one-way valve 55 inside the oil guide pipe 53 is located on the side close to the annular oil storage box 52, and the oil outlet end is located on the side close to the oil storage bag 51; the oil inlet end of the one-way valve 55 inside the oil discharge hole 54 is located on the side close to the oil storage bag 51, and the oil outlet end is located on the side close to the central axis of the flexible conical ring plate 2.

[0034] Among them, refer to Figure 2 and Figure 3Each oil drain hole 54 is inclined downward from the outside to the inside based on the central axis of the flexible cone ring plate 2, which can reduce the probability of coal entering the oil drain hole 54 and clogging it to a certain extent.

[0035] Among them, refer to Figure 3 and Figure 4 Each oil storage bag 51 is provided with an array of metal springs 6, which are arranged in an arc shape, and the concave arc surface of the metal spring 6 is located on the side close to the central axis of the flexible cone ring plate 2, and the convex arc surface of the metal spring 6 is located on the side away from the central axis of the flexible cone ring plate 2. The metal spring 6 is used to provide further elastic reset force for the oil storage bag 51, so that the oil storage bag 51 can be reset more quickly and effectively.

[0036] Among them, refer to Figure 3 The gap between two adjacent metal springs 6 in the oil storage bag 51 is smaller than the thickness of the pressing wheel 3, and the multiple metal springs 6 inside a single oil storage bag 51 correspond to the pressing wheel 3 one by one.

[0037] In the process that the middle warehouse shell 12 drives the pressure wheel 3 to rotate together and change the circumferential position of the pressure wheel 3, when the oil storage bag 51 is pushed by the pressure wheel 3 and its own volume is reduced, the one-way valve 55 inside the oil guide pipe 53 is closed, and the one-way valve 55 inside the oil discharge hole 54 is opened, so that the lubricating oil inside the oil storage bag 51 can enter the interior of the flexible cone ring plate 2 through the oil discharge hole 54, so as to further reduce the friction between the coal and the flexible cone ring plate 2 during the falling process of the coal; on the contrary, when the oil storage bag 51 is misaligned with the pressure wheel 3, and the oil storage bag 51 automatically resets due to the elastic potential energy of itself and the metal spring sheet 6, the inner cavity of the oil storage bag 51 will generate negative pressure, the one-way valve 55 inside the oil guide pipe 53 is opened, and the one-way valve 55 inside the oil discharge hole 54 is closed, so that the lubricating oil reserved in advance in the annular oil storage box 52 can be replenished to the oil storage bag 51 again through the oil guide pipe 53 under the action of negative pressure.

[0038] In addition, when the lubricating oil is discharged from the oil discharge hole 54, the curvature change of the flexible cone ring plate 2 is conducive to the flow of the lubricating oil toward the circumferential position of the flexible cone ring plate 2, thereby increasing the coverage area of ​​the lubricating oil.

[0039] The implementation principle of the bulk material hyperbolic drop bin in the embodiment of the present application is: When coal is blocked during the dropping process, the reduction motor 41 drives the driving gear 42 to rotate. Affected by the meshing connection relationship between the driven gear ring 43 and the driving gear 42, the driven gear ring 43 will drive the middle warehouse shell 12 to rotate together. At this time, the pressure wheel 3 will change its own circumferential position with the rotation of the middle warehouse shell 12, so as to abut against the outer wall of the flexible cone ring plate 2 at different circumferential positions. At this time, the flexible cone ring plate 2 will continuously change the curvature of the compressed position of its inner wall surface under the pushing and pressure of the pressure wheel 3, so as to separate the coal adhered to the inner wall surface of the flexible cone ring plate 2 from the flexible cone ring plate 2, thereby completing the clearing and unblocking work.

[0040] At the same time, in the process of the middle warehouse shell 12 driving the pressure wheel 3 to rotate together and changing the circumferential position of the pressure wheel 3, when the oil storage bag 51 is pushed by the pressure wheel 3 and its own volume is reduced, the one-way valve 55 inside the oil guide pipe 53 is closed, and the one-way valve 55 inside the oil discharge hole 54 is opened, so that the lubricating oil inside the oil storage bag 51 can enter the interior of the flexible cone ring plate 2 through the oil discharge hole 54, so as to further reduce the friction between the coal and the flexible cone ring plate 2 during the falling process of the coal; on the contrary, when the oil storage bag 51 is misaligned with the pressure wheel 3, and the oil storage bag 51 is automatically reset due to the elastic potential energy of itself and the metal spring 6, the inner cavity of the oil storage bag 51 will generate negative pressure, the one-way valve 55 inside the oil guide pipe 53 is opened, and the one-way valve 55 inside the oil discharge hole 54 is closed, so that the lubricating oil reserved in advance in the annular oil storage box 52 can be replenished to the oil storage bag 51 again through the oil guide pipe 53 under the action of negative pressure.

[0041] 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.

[0042] 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 bulk material hyperbolic drop bin, comprising a bin body (1), wherein the bin body (1) is arranged in a hyperbolic cone bucket shape, and is characterized in that: The silo body (1) is composed of an upper silo shell (11), a middle silo shell (12) and a lower silo shell (13); the upper silo shell (11) and the lower silo shell (13) are fixedly connected via an external truss, and the middle silo shell (12) is connected in series between the upper silo shell (11) and the lower silo shell (13) in a rotatable manner; A flexible cone ring plate (2) is connected in series between the inner edges of the upper bin shell (11) and the lower bin shell (13) in a fixed connection manner, and the flexible cone ring plate (2) is located inside the middle bin shell (12). The inner wall surface of the middle bin shell (12) is rotatably connected to a plurality of pressure wheels (3) capable of abutting against the outer wall surface of the flexible cone ring plate (2), and the plurality of pressure wheels (3) are arranged in an array along the inner wall surface of the middle bin shell (12) in the vertical direction; A driving member (4) is provided between the upper storage shell (11) and the lower storage shell (13) for driving the middle storage shell (12) to rotate.

2. The bulk material hyperbolic drop bin according to claim 1, characterized in that: The driving member (4) comprises a reduction motor (41) arranged between the upper bin shell (11) and the lower bin shell (13); a driving gear (42) is arranged on the output shaft of the reduction motor (41); and a driven gear ring (43) capable of meshing with the driving gear (42) is arranged outside the middle bin shell (12).

3. The bulk material hyperbolic drop bin according to claim 1, characterized in that: The inner wall surface of the flexible cone ring plate (2) is provided with a polyurethane coating, which is used to form a lubricating layer on the inner wall surface of the flexible cone ring plate (2) to reduce the friction between the coal and the flexible cone ring plate (2).

4. The bulk material hyperbolic drop bin according to claim 1, characterized in that: The flexible cone ring plate (2) is provided with a lubrication mechanism (5) for further increasing the lubricity of the inner wall surface of the flexible cone ring plate (2).

5. The bulk material hyperbolic drop bin according to claim 4, characterized in that: The lubrication mechanism (5) comprises a plurality of oil storage bags (51) arranged in an annular array in the interlayer of the flexible cone ring plate (2); an annular oil storage box (52) is arranged on the outer wall of the lower housing shell (13); an oil guide pipe (53) connected to the bottom of each oil storage bag (51) is connected to the annular oil storage box (52); a plurality of oil discharge holes (54) are formed on the inner wall surface of the flexible cone ring plate (2); each oil discharge hole (54) is connected to a radially corresponding oil storage bag (51); and a one-way valve (55) is connected in series inside each oil guide pipe (53) and each oil discharge hole (54).

6. The bulk material hyperbolic drop bin according to claim 5, characterized in that: Each of the oil drain holes (54) is arranged to be inclined downward from the outside to the inside with the central axis of the flexible cone ring plate (2) as a reference.

7. The bulk material hyperbolic drop bin according to claim 5, characterized in that: Each of the oil storage bags (51) is provided with metal springs (6) distributed in an array. The metal springs (6) are arranged in an arc shape, and the concave arc surface of the metal springs (6) is located on a side close to the central axis of the flexible cone ring plate (2), and the convex arc surface of the metal springs (6) is located on a side away from the central axis of the flexible cone ring plate (2).

8. The bulk material hyperbolic drop bin according to claim 7, characterized in that: The gap between two adjacent metal springs (6) in the oil storage bag (51) is smaller than the thickness of the pressing wheel (3), and the multiple metal springs (6) inside a single oil storage bag (51) correspond one-to-one to the pressing wheel (3).

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