Auxiliary device for coal discharging of coal silo

Abstract

The utility model discloses an auxiliary device for coal discharging of a coal silo, which comprises a discharging conveying pipe which is positioned right below a coal silo body and is transversely arranged, a notch is formed in the center of the top wall of the discharging conveying pipe, and a conical hopper part of the coal silo body extends into the discharging conveying pipe through the notch. A loosening mechanism is arranged at the bottom end of the inner side of the coal silo body, is used for loosening materials accumulated in the coal silo body, and comprises a plurality of reel rows. According to the utility model, materials accumulated in the coal silo body are loosened through the loosening mechanism, the plurality of reel rows are uniform and keep a certain inclination angle for stirring, an accumulated and caked coal layer is loosened and is conveyed into the blanking conveying pipe from the output port at the bottom of the conical hopper part through the notch, material distribution in the blanking process is further realized, and then conveying is carried out; materials cannot block an output port of the coal silo, the materials are supplemented in time through the collecting hopper, automatic discharging and controllable directional conveying of coal in the coal silo are achieved, and the working efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of coal storage and transmission technology, and in particular to an auxiliary device for unloading coal from a coal silo. Background Technology

[0002] Coking coal is stored in coal silos. In the conical section of the silo, the coking coal tends to solidify, causing obstructed coal feeding. This can lead to situations where feeding is impossible or there is a sudden large amount of material falling, affecting the accuracy of coal blending and causing fluctuations in coke quality. Furthermore, it jeopardizes work efficiency.

[0003] Existing technologies use knocking and vibration to make the material in the coal silo fall. However, when there is a lot of material, the coking coal is squeezed and piled up under the action of gravity and friction, forming a compacted structure. At this time, the vibration will only aggravate the blockage and cannot achieve the purpose of clearing and discharging the material from the coal silo. In addition, uneven material discharge, or when the storage parts need to be replaced at the end of the material collection, the coal on the conveyor belt will fall to the ground, which will bring unnecessary labor intensity to the workers.

[0004] Therefore, it is necessary to develop an auxiliary device for unloading coal from coal silos to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an auxiliary device for unloading coal from a coal silo, which addresses the shortcomings of the prior art. The device loosens the material accumulated in the coal silo body through a loosening mechanism. Multiple winches are arranged evenly and maintain a certain inward inclination angle to stir the coal, making the accumulated and lumpy coal layer loose. The coal is then sent from the bottom outlet of the cone hopper through the slot into the inside of the feeding conveyor pipe, further realizing material distribution during the unloading process, and then conveying it, thereby solving the shortcomings mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] An auxiliary device for unloading coal from a coal silo includes a material conveying pipe located directly below the coal silo body and arranged horizontally. A slot is provided at the center of the top wall of the material conveying pipe. The conical part of the coal silo body extends into the interior of the material conveying pipe through the slot. A loosening mechanism is provided at the bottom inner side of the coal silo body for loosening the material accumulated inside the coal silo body. The mechanism includes multiple winch rows, and the multiple winch rows are driven by a drive unit to convey the material inside the coal silo body downward.

[0008] The auxiliary device also includes a coal feeding mechanism, which is used to drive the material conveying pipe to tilt, so that the material conveying pipe can be oriented to feed the material.

[0009] Preferably, the loosening mechanism includes an upper fixing ring and a lower fixing housing. The upper fixing ring is fixed in the transition area between the conical hopper and the straight cylinder of the coal silo body. The lower fixing housing is fixed to the bottom end of the straight cylinder of the coal silo body by a support rod. The upper fixing ring and the lower fixing housing are coaxially distributed, and the diameter of the upper fixing ring is larger than the diameter of the lower fixing housing, so that multiple winches are arranged in an inclined ring array around the axis of the lower fixing housing.

[0010] The winch row has smooth rods at both ends, and the smooth rods at both ends are rotatably connected to the upper fixed ring and the lower fixed housing, respectively. The lower fixed housing has a closed chamber inside, and the drive unit is installed in the closed chamber.

[0011] Preferably, the driving unit is a drive motor, the number of drive motors corresponds one-to-one with the winch row, and its output shaft is connected to the end of the winch row for transmission.

[0012] Preferably, the inner wall of the feeding conveyor pipe is configured as a smooth surface structure with a high middle and low ends, and extension pipes are installed at both ends of the feeding conveyor pipe, with the other ends of the extension pipes on both sides extending to the top of a belt conveyor respectively.

[0013] Preferably, the coal feeding mechanism includes two symmetrically distributed vertical plates, the top ends of which are fixed to the outer wall of the coal silo body. The bottom ends of the vertical plates are hinged to the middle of the feeding pipe. An extension section is provided between the vertical plates and the feeding pipe to provide a driving force for tilting the feeding pipe.

[0014] Preferably, the telescopic part is one of an electric push rod, a pneumatic cylinder, and a hydraulic cylinder, and its output end and fixed end are respectively hinged to the material conveying pipe and the vertical plate, and the telescopic parts on both sides are centrally symmetrical about the center point of the material conveying pipe.

[0015] Preferably, a positioning pile and a fixed seat are fixedly connected to the outer wall of the feeding conveyor pipe, a clamping roller and a first mounting shaft are fixedly connected to the inner side of the vertical plate, a second mounting shaft is fixedly connected to the fixed seat, a clamping groove matching the clamping roller is opened on the positioning pile, and the two ends of the telescopic part are respectively movably set on the first mounting shaft and the second mounting shaft through a collar.

[0016] Preferably, the orthographic projection shape of the slot on the horizontal plane is set to ellipse, and a gap is reserved between the slot along the axial direction of the feeding conveying pipe and the coal silo body under the installation position. The two axial side walls of the slot away from the feeding conveying pipe are slidably connected to the outer wall of the coal silo body under the installation position.

[0017] Preferably, a corrugated enclosure made of rubber is fitted around the outer side of the coal silo body. A cavity is reserved between the corrugated enclosure and the outer wall of the coal silo body, and the bottom end of the corrugated enclosure is fixed to the edge of the slot.

[0018] Preferably, the top of the coal silo body is equipped with a cover plate, and the cover plate is provided with a feed inlet, and a collection hopper is fixedly connected to the feed inlet.

[0019] This utility model has the following beneficial effects:

[0020] 1. The loosening mechanism loosens the material accumulated in the coal silo. Multiple winches are evenly arranged and maintain a certain inward angle to stir the coal, making the accumulated and lumpy coal layer loose. The coal is then sent from the bottom outlet of the cone hopper through the slot into the inside of the feeding conveyor pipe, further realizing material distribution during the feeding process. The material is then conveyed without clogging the coal silo outlet. The material is replenished in time through the collection hopper, realizing automated feeding and controllable directional conveying of coal in the coal silo, which greatly improves work efficiency.

[0021] 2. By adding a coal feeding mechanism and adjusting the length of the telescopic output end, the material feeding pipe is kept horizontal when the belt conveyors on both sides are working synchronously. Utilizing the characteristic that its inner wall is high in the middle and low at both ends, the falling material is evenly distributed to both ends and transported to the two sets of belt conveyors for transportation. When one set of belt conveyors stops working, or when there is too much material or when changing storage components, the material feeding pipe is controlled to tilt in the opposite direction, so that the material is first concentrated and transported to the other set of belt conveyors for transportation, thus avoiding the material falling to the ground. The degree of automation is high, which helps to reduce resource waste, improve the cleanliness of the workshop, and reduce the labor intensity of the staff. Attached Figure Description

[0022] Figure 1 A three-dimensional view of the overall structure of the auxiliary device for unloading coal from a coal silo provided by this utility model;

[0023] Figure 2 A top view of the overall structure of the auxiliary device for unloading coal from a coal silo provided by this utility model;

[0024] Figure 3 This utility model Figure 2 Schematic diagram of the cross-section along the AA direction;

[0025] Figure 4 This utility model Figure 3 A three-dimensional view showing the cross-sectional structure;

[0026] Figure 5 This utility model Figure 2 Schematic diagram of the cross-section structure along the BB direction;

[0027] Figure 6 This utility model Figure 5 A three-dimensional view showing the cross-sectional structure;

[0028] Figure 7A three-dimensional structural view of the auxiliary device for unloading coal from a coal silo provided by this utility model (excluding the cover plate and corrugated enclosure);

[0029] Figure 8 This utility model Figure 7 Top view of the structure shown;

[0030] Figure 9 A schematic diagram of one embodiment of the loosening mechanism provided by this utility model.

[0031] Among them are:

[0032] Coal silo body-1; feeding conveying pipe-2; slot-3; winch row-4; drive unit-5; upper fixing ring-6; lower fixing housing-7; enclosed chamber-8; vertical plate-9; telescopic part-10; positioning pile-11; fixed seat-12; clamping roller-13; first mounting shaft-14; second mounting shaft-15; corrugated enclosure-16; cover plate-17; collection hopper-18; support rod-19. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and specific preferred embodiments.

[0034] In the description of this utility model, it should be understood that the terms "left side," "right side," "upper part," "lower part," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. "First," "second," etc., do not indicate the importance of the components, and therefore should not be construed as a limitation of this utility model. The specific dimensions used in this embodiment are only for illustrating the technical solution and do not limit the protection scope of this utility model.

[0035] like Figure 1-9 As shown, an auxiliary device for unloading coal from a coal silo includes a material conveying pipe 2 located directly below the coal silo body 1 and arranged horizontally. A slot 3 is provided at the center of the top wall of the material conveying pipe 2. The conical part of the coal silo body 1 extends into the material conveying pipe 2 through the slot 3. A loosening mechanism is provided at the bottom inner side of the coal silo body 1 for loosening the material accumulated inside the coal silo body 1. The mechanism includes multiple winch rows 4, and the multiple winch rows 4 are driven by a drive unit 5 to convey the material inside the coal silo body 1 downward.

[0036] As a preferred embodiment of the loosening mechanism in this utility model, it includes an upper fixing ring 6 and a lower fixing housing 7. The upper fixing ring 6 is fixed in the transition area between the conical bucket part and the straight cylinder part of the coal silo body 1. The lower fixing housing 7 is fixed to the bottom end of the straight cylinder part of the coal silo body 1 by a support rod 19. The upper fixing ring 6 and the lower fixing housing 7 are coaxially distributed, and the diameter of the upper fixing ring 6 is larger than the diameter of the lower fixing housing 7, so that multiple winch rows 4 are arranged in an inclined ring array around the axis of the lower fixing housing 7.

[0037] The winch row 4 has smooth rods at both ends, and the smooth rods at both ends are rotatably connected to the upper fixed ring 6 and the lower fixed housing 7 respectively. The lower fixed housing 7 has a closed chamber 8 inside, and the drive unit 5 is installed in the closed chamber 8.

[0038] In the above embodiments, the drive unit 5 may be a drive motor, the number of drive motors corresponds one-to-one with the winch row 4, and its output shaft is connected to the end of the winch row 4 for transmission.

[0039] Alternatively, as an alternative embodiment, the number of drive motors is set to one, and multiple winches are synchronously driven by planetary gear sets.

[0040] The auxiliary device also includes a coal feeding mechanism, which is used to drive the material conveying pipe 2 to tilt, so that the material conveying pipe 2 can feed material in a directional manner.

[0041] As a preferred embodiment of the coal conveying mechanism of this utility model, it includes two symmetrically distributed vertical plates 9, the top of which is fixed to the outer wall of the coal silo body 1, the bottom of the vertical plates 9 is hinged to the middle of the material conveying pipe 2, and a telescopic part 10 is provided between the vertical plates 9 and the material conveying pipe 2 to provide a driving force for tilting the material conveying pipe 2.

[0042] In the above embodiments, the telescopic part 10 can be one of an electric push rod, a pneumatic cylinder, or a hydraulic cylinder, and its output end and fixed end are respectively hinged to the feeding conveying pipe 2 and the vertical plate 9. The telescopic parts 10 on both sides are centrally symmetrically distributed about the center point of the feeding conveying pipe 2. When a pneumatic cylinder or a hydraulic cylinder is selected, a corresponding starting mechanism and a hydraulic drive mechanism for providing kinetic energy are installed.

[0043] Preferably, the inner wall of the feeding conveyor pipe 2 is designed as a smooth surface structure with a high middle and low ends, which facilitates the material to slide out from inside after entering; and both ends of the feeding conveyor pipe 2 are equipped with extension pipes, and the other ends of the extension pipes on both sides extend to the top of a belt conveyor, so that the discharged material is transported by two sets of belt conveyors.

[0044] Furthermore, in the above technical solution, the orthographic projection shape of the slot 3 on the horizontal plane is set to ellipse, and a gap is reserved between the slot 3 along the axial direction of the feeding conveying pipe 2 and the coal silo body 1 under the installation position. The two axial side walls of the slot 3 away from the feeding conveying pipe 2 are slidably connected to the outer wall of the coal silo body 1 under the installation position, which improves the stability of the coal silo body 1 and the feeding conveying pipe 2 during operation, and allows the silo body 1 and the feeding conveying pipe 2 to swing flexibly, so as to realize the adjustment and selection of feeding material to both sides or to one side at the same time.

[0045] In addition, a corrugated enclosure 16 is fitted on the outside of the coal silo body 1. It is made of rubber and a cavity is reserved between the corrugated enclosure 16 and the outer wall of the coal silo body 1. The bottom end of the corrugated enclosure 16 is fixed to the edge of the slot 3. The corrugated enclosure 16 can prevent the loosening mechanism from spilling or escaping smoke and dust during the stirring and conveying of materials.

[0046] Furthermore, in the above technical solution, the outer wall of the feeding conveying pipe 2 is fixedly connected with a positioning pile 11 and a fixed seat 12, the inner side of the vertical plate 9 is fixedly connected with a clamping roller 13 and a first mounting shaft 14, the fixed seat 12 is fixedly connected with a second mounting shaft 15, the positioning pile 11 is provided with a groove matching the clamping roller 13, and the two ends of the telescopic part 10 are respectively movably set on the first mounting shaft 14 and the second mounting shaft 15 through a collar.

[0047] Furthermore, in the above technical solution, a cover plate 17 is installed at the top of the coal silo body 1, and a feed inlet is provided on the cover plate 17. A collection hopper 18 is fixedly connected to the feed inlet, which facilitates the replenishment of materials while reducing dust.

[0048] The working principle of this utility model:

[0049] When the material inside the coal silo body 1 is being fed, the drive unit is activated to drive multiple winches 4. The multiple winches 4 are agitated evenly and at a certain inward angle to loosen the accumulated and lumpy coal layer and send it from the bottom outlet of the cone hopper through the slot 3 into the inside of the feeding conveyor pipe 2. By adjusting the length of the output end of the telescopic part 10, the feeding conveyor pipe 2 is kept horizontal when the belt conveyors on both sides are working synchronously. Utilizing the characteristic that its inner wall is high in the middle and low at both ends, the falling material is evenly dispersed to both ends and transported to the two sets of belt conveyors for transportation. When one set of belt conveyors stops working, or when there is too much material or when the storage parts are being replaced, the feeding conveyor pipe 2 is controlled to tilt in the opposite direction, so that the material is first concentrated and transported to the other set of belt conveyors for transportation to avoid the material falling to the ground.

[0050] Material is replenished through the collection hopper 18, enabling automated unloading and controlled directional conveying of coal in the coal silo, improving work efficiency and reducing the labor intensity of workers.

[0051] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. An auxiliary device for unloading coal from a coal silo, comprising a feeding conveying pipe (2) located directly below the coal silo body (1) and arranged laterally, wherein a slot (3) is provided at the center of the top wall of the feeding conveying pipe (2), and the conical part of the coal silo body (1) extends into the feeding conveying pipe (2) through the slot (3), characterized in that: The bottom inner side of the coal silo body (1) is provided with a loosening mechanism for loosening the material accumulated inside the coal silo body (1). It includes multiple winch rows (4), and the multiple winch rows (4) are driven by a drive unit (5) to convey the material inside the coal silo body (1) downward. The auxiliary device also includes a coal feeding mechanism, which is used to drive the feeding conveyor pipe (2) to tilt so that the feeding conveyor pipe (2) can feed materials in a directional manner.

2. The auxiliary device for unloading coal from a coal silo according to claim 1, characterized in that: The loosening mechanism includes an upper fixing ring (6) and a lower fixing box (7). The upper fixing ring (6) is fixed in the transition area between the conical bucket part and the straight cylinder part of the coal silo body (1). The lower fixing box (7) is fixed to the bottom end of the straight cylinder part of the coal silo body (1) by a support rod (19). The upper fixing ring (6) and the lower fixing box (7) are coaxially distributed, and the diameter of the upper fixing ring (6) is larger than the diameter of the lower fixing box (7), so that multiple winch rows (4) are arranged in an inclined ring array around the axis of the lower fixing box (7). The two ends of the winch row (4) are set as smooth rods, and the two ends of the smooth rods are rotatably connected to the upper fixed ring (6) and the lower fixed housing (7) respectively. The lower fixed housing (7) is provided with a closed chamber (8), and the drive unit (5) is installed in the closed chamber (8).

3. The auxiliary device for unloading coal from a coal silo according to claim 1, characterized in that: The drive unit (5) uses a drive motor. The number of drive motors corresponds one-to-one with the winch row (4), and its output shaft is connected to the end of the winch row (4) for transmission.

4. The auxiliary device for unloading coal from a coal silo according to claim 1, characterized in that: The inner wall of the feeding conveyor pipe (2) is configured as a smooth surface structure with a high middle and low ends, and both ends of the feeding conveyor pipe (2) are equipped with extension pipes, and the other ends of the extension pipes on both sides extend to the top of a belt conveyor respectively.

5. The auxiliary device for unloading coal from a coal silo according to claim 1, characterized in that: The coal feeding mechanism includes two symmetrically distributed vertical plates (9), the top of which is fixed to the outer wall of the coal silo body (1). The bottom of the vertical plate (9) is hinged to the middle of the feeding conveying pipe (2). A telescopic part (10) is provided between the vertical plate (9) and the feeding conveying pipe (2) to provide a driving force for tilting the feeding conveying pipe (2).

6. The auxiliary device for unloading coal from a coal silo according to claim 5, characterized in that: The telescopic part (10) adopts one of electric push rod, cylinder and hydraulic cylinder, and its output end and fixed end are respectively hinged to the feeding conveying pipe (2) and the vertical plate (9). The telescopic parts (10) on both sides are centrally symmetrical about the center point of the feeding conveying pipe (2).

7. The auxiliary device for unloading coal from a coal silo according to claim 6, characterized in that: The outer wall of the feeding conveyor pipe (2) is fixedly connected with a positioning pile (11) and a fixed seat (12). The inner side of the vertical plate (9) is fixedly connected with a clamping roller (13) and a first mounting shaft (14). The fixed seat (12) is fixedly connected with a second mounting shaft (15). The positioning pile (11) is provided with a groove that matches the clamping roller (13). The two ends of the telescopic part (10) are respectively movably set on the first mounting shaft (14) and the second mounting shaft (15) through a collar.

8. The auxiliary device for unloading coal from a coal silo according to claim 5, characterized in that: The orthographic projection shape of the slot (3) on the horizontal plane is set to ellipse, and a gap is reserved between the slot (3) along the axial direction of the feeding conveying pipe (2) and the coal silo body (1) under the installation position. The two axial side walls of the slot (3) away from the feeding conveying pipe (2) are slidably connected to the outer wall of the coal silo body (1) under the installation position.

9. The auxiliary device for unloading coal from a coal silo according to claim 5, characterized in that: The outer side of the coal silo body (1) is fitted with a corrugated enclosure (16) made of rubber. A cavity is reserved between the corrugated enclosure (16) and the outer wall of the coal silo body (1), and the bottom end of the corrugated enclosure (16) is fixed to the edge of the slot (3).

10. An auxiliary device for unloading coal from a coal silo according to claim 1, characterized in that: The top of the coal silo body (1) is equipped with a cover plate (17), and a feed inlet is provided on the cover plate (17), and a collection hopper (18) is fixedly connected to the feed inlet.

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