Large capacity coal discharge buffer conveying vessel for mines

Abstract

Coal discharge buffer conveyance (12) with large loading volume for a mine, comprising a conveyance (12) with a large loading volume, wherein a loading vessel box (14) is installed at the top of the conveyance (12) with a large loading volume, at least one coal discharge buffer device (13) is arranged on the inner side wall of the conveyance (12) with a large loading volume, wherein each coal discharge buffer device (13) comprises: a frame (1) which is firmly connected to the inner side wall of the conveying vessel (12) with a large loading volume; a lining plate guide frame (6) which is connected to the frame (1) by means of shock absorbers (2), wherein guide sliding grooves are formed in the lining plate guide frame (6); a lining plate carrier (4) which is slidably inserted in the guide grooves in the lining plate guide frame (6), wherein lifting lugs (9) are arranged at the upper end of the lining plate carrier (4); and a lining plate (5) which is detachably connected to the lining plate support (4) by means of fastening elements.

Description

AREA OF INVENTION

[0001] The present invention relates to a coal discharge buffer conveying vessel with a large loading volume for mines, which is suitable for loading coal and discharge buffer and vibration damping of a conveying vessel with a large loading volume, and which can facilitate the removal and replacement of a coal discharge buffer device.

[0002] Skips, or skips, are the primary equipment for transporting coal and other mineral resources in mines and are used to complete the conveyance of coal and other mineral resources from underground to the surface. As mines expand, the load carried by skips increases, and the safety and reliability of large-capacity skips directly impact the safety of mine transport. Under current conveying conditions, the sidewall and bottom lining plates of large-capacity skips bear the direct impact friction from coal blocks, vein ore, and other minerals. The applied load and operating conditions are very poor, which exacerbates the wear of the lining plates and significantly reduces the service life of skips.

[0003] In daily operations, the lining plates of the mine's skip are frequently repaired and replaced due to damage caused by impacts. Currently, the lining plates of the large-capacity skips commonly used in the mine are often welded directly and permanently to the skip's side wall. This frequent repair and replacement of the lining plates will inevitably lead to the skip being scrapped and decommissioned, resulting in significant material and financial waste and directly impacting the mine's efficiency.

[0004] CN 1 06 276 200 A relates to a conveying bucket with a conveying device and a bucket housing, which are connected to each other via a connecting element. The bucket has an inlet on the side and an outlet opening below it, with a pivoting impact flap and an adjustable feed plate associated with the inlet. A buffer protection layer with a hinged elastic buffer plate, which is provided with an adjustment channel, is arranged on the inner wall of the bucket. In the area of ​​the outlet opening, a pivotally mounted outlet adjustment plate is provided, which is actuated by an adjustment cable and interacts with the adjustment channel to regulate the discharge. CN 2 05 873 642 U relates to a wear-resistant device for conveying or assisting skip lowering in the field of conveying technology. It comprises a steel plate and a rubber plate mounted on it, the rubber plate being fastened to the steel plate by means of hexagon head screws.Two through-holes are provided in the upper part of the steel plate. CN 2 03 889 831 U relates to a damping overlift buffer device for a mine hoisting system. The device comprises steel trusses arranged at the shaft bottom, damping buffers suspended from them, and buffer beams on which the skip rests in the event of overlift. The damping buffers are arranged between the steel trusses and buffer beams and are designed as hydraulic cylinders with stroke-dependent varying damping grooves in the piston rods to ensure adaptive damping of the impact energy. CN 2 03 699 132 U relates to a buffer sliding plate device for mining with a base plate rotatably mounted on a shaft headframe, on the sides of which sliding plates are arranged.Several lower tabs with elongated holes are provided on the underside of the base plate. Floating support frames are pivotally attached to these tabs and connected to a fixed mounting plate via a movable mounting plate. Buffer springs are arranged between the support frames and the base plate, and the mounting structure additionally includes an adjustable locking rod. US 2018 / 0065811A1 relates to a device and method for monitoring the impact energy during coal discharge in a belt conveyor system in coal mining. The device comprises a buffer roller assembly on a buffer carrier, buffer springs, and impact energy-sensing dampers arranged between the buffer carrier and the mounting base plate. The dampers are connected via lines to a signal conversion and transmission unit mounted on the base plate.CN 1 06 185 576 A relates to a conveying skip with a welded-on external stiffener, a lower discharge opening with a flap, and a support plate movably mounted on the skip body, as well as a layered structure arranged in the lower interior consisting of a buffer layer and a modular wear protection layer. The wear protection layer consists of blocks with a central half-through bore and is fastened to the skip body by screws in these bores. PRESENTATION OF THE INVENTION

[0005] The purpose of the present invention is to provide a novel coal discharge buffer conveying vessel with a large loading volume, which has a simple design and is safe and easy to operate, thereby overcoming the shortcomings known from the prior art.

[0006] The purpose of the present invention is achieved by applying the following technical solution: A large-capacity coal discharge buffer conveyor for a mine comprises a large-capacity conveyor, a conveyor box is installed on top of the large-capacity conveyor, at least one coal discharge buffer device is arranged on the inner side wall of the large-capacity conveyor, and each coal discharge buffer device comprises: a frame that is firmly connected to the inner side wall of the large-capacity conveying vessel; a lining plate guide frame which is connected to the frame by shock absorbers, wherein guide sliding grooves are formed in the lining plate guide frame; a lining plate carrier which is slidably inserted in the guide grooves in the lining plate guide frame, wherein lifting tabs are arranged at the upper end of the lining plate carrier; and a lining panel that is detachably connected to the lining panel support by means of fastening elements.

[0007] The number of coal drop buffer devices is at least two; one coal drop buffer device is located on the inner side wall opposite the side of the discharge outlet of the loading vessel box in the large-capacity conveying vessel, and the other coal drop buffer device is located at a landing position for dropped coal on the inner floor of the large-capacity conveying vessel.

[0008] The frame has a horizontal plate and a vertical plate which are firmly connected, the upper and lower ends of the vertical plate are each firmly connected to the conveying vessel by fastening elements, a ribbed plate to reinforce the strength of the frame is arranged at the connection position between the horizontal plate and the vertical plate.

[0009] The shock absorbers are steel wire rope shock absorbers; the number of steel wire rope shock absorbers is three: two steel wire rope shock absorbers are arranged vertically and symmetrically on the left and right sides of the vertical plate between the vertical plate and the lining plate guide frame, and the other steel wire rope shock absorber is arranged horizontally between the horizontal plate and the bottom of the lining plate guide frame.

[0010] Inwardly concave guide slide grooves are formed in the two sides of the front of the lining plate guide frame, and the guide slide grooves are designed to provide rails for moving the lining plate carrier up and down.

[0011] The lining plate support has an L-shaped structural plate and an upper horizontal plate on the upper part of the L-shaped structural plate, and a plurality of first threaded holes are formed at equal intervals in the upper horizontal plate; Second threaded holes are formed in the upper end of the lining plate at positions corresponding to the first threaded holes in the upper horizontal plate; the fasteners are bolts, and the threaded ends of the bolts extend successively through the first threaded holes and the second threaded holes to firmly connect the lining plate and the lining plate support.

[0012] Compression springs to prevent loosening are inserted between the groove ends of the bolts and the upper horizontal plate of the lining plate carrier.

[0013] The present invention innovatively designs a coal discharge buffer conveying vessel with a large loading volume for a mine in combination with steel wire rope shock absorbers, thereby achieving the following advantageous effects: (1) Compared with the prior art, the present invention, in combination with the coal loading and discharge conditions of the large-capacity conveying vessel, proposes the use of steel wire rope shock absorbers for connection with the lining plate to achieve vibration damping and buffering effects, thus enabling the large-capacity conveying vessel to be more stable during loading. The stiffness coefficient of the steel wire rope shock absorbers is not a fixed value, but the stiffness coefficient of the steel wire rope shock absorbers under a large horizontal impact is very evident. The present invention utilizes the excellent vibration and shock damping and impact resistance of the steel wire rope shock absorbers.Vibration dampers are used, and a conveying vessel is formed which can significantly mitigate the damage caused by impact wear of the conveying vessel lining plate, which is caused by the impact of coal unloading during the loading of the conveying vessel with a large loading volume, extending the service life of the conveying vessel with a large loading volume and improving the production efficiency of the coal mine. (2) Coal discharge buffer devices can effectively mitigate wear damage caused by impacts to the vessel lining plate under coal discharge and loading conditions, enabling the rapid removal and replacement of the damaged lining plate simultaneously, extending the service life of the vessel and improving the production efficiency of the coal mine. (3) The coal discharge buffer devices in the present invention offer the advantages of a simple design, suitable size and ease of assembly. (4) The coal discharge buffer devices in the present invention can be flexibly installed and attached to the side wall, the bottom and other positions with a large load-bearing capacity of the conveying vessel, and are easy to install and dismantle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Specific implementations of the present invention are described in detail below with reference to the accompanying drawings, in which: Fig. 1 a schematic front view of a coal discharge buffer device of a coal discharge buffer conveying vessel with a large loading volume according to the present invention. Fig. 2 is a schematic view from the left of a coal discharge buffer device of a coal discharge buffer conveying vessel according to the present invention. Fig. 3 is a schematic top view of a coal discharge buffer device of a coal discharge buffer conveying vessel according to the present invention. Fig. 4 is a front view of a lining plate frame in a coal discharge buffer device of a coal discharge buffer conveying vessel with a large loading volume according to the present invention. Fig. 5 is a top view of a lining plate guide frame in a coal discharge buffer device of a coal discharge buffer conveying vessel with a large loading volume according to the present invention. Fig. 6 is a front view of a lining plate carrier in a coal discharge buffer device of a coal discharge buffer conveying vessel with a large loading volume according to the present invention. Fig. Figure 7 shows a left-hand view of a lining plate carrier in a coal discharge buffer device of a coal discharge buffer conveying vessel with a large loading volume according to the present invention. Fig. Figure 8 shows a schematic view of the installation of a coal discharge buffer device on the left side wall and the bottom of a coal discharge buffer conveying vessel with a large loading volume according to the present invention.

[0015] In the drawings: 1 frame 2, 10 wire rope dampers 3 ribbed plate 4 lining plate carriers 5 Lining plate 6 lining plate guide frames 7 bolts 8 compression spring 9 Lever tab 12 conveying containers with large loading volume 13 Coal discharge buffer device 14 loading container boxes DETAILED DESCRIPTION OF THE INVENTION

[0016] The present invention is described in detail below with reference to specific embodiments. Design 1

[0017] As in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 to Fig. As shown in Figure 7, a large-capacity coal discharge buffer conveyor comprises a loading container box 14, a large-capacity conveyor 12, and a coal discharge buffer device 13. The coal discharge buffer devices 13 are attached to the side walls of the large-capacity conveyor 12 and to a coal discharge landing position on the bottom. Each coal discharge buffer device 13 consists mainly of a frame 1, steel wire rope shock absorbers 2, a liner plate support 4, a liner plate 5, a liner plate guide frame 6, bolts 7, compression springs 8, and lifting lugs 9.

[0018] The lining plate guide frame 6 is firmly connected to the frame 1 by the steel wire rope shock absorbers 2, the lining plate support 4 is slidably inserted in the grooves in the lining plate guide frame 6, the lining plate 5 is clamped and firmly fastened in the lining plate support 4 by bolts 7, and the lever tabs 9 are welded to the upper end of the lining plate support 4.

[0019] As in the Fig. 8 to Fig. As illustrated in Figure 9, the number of coal drop buffer devices 13 is two. One coal drop buffer device 13 is attached to the side wall of the large-capacity conveying vessel 12 by bolts, and the other coal drop buffer device 13 is attached to a landing position for dropped coal on the inner floor of the large-capacity conveying vessel in order to buffer or mitigate the impact of dropped coal in large pieces on the side walls and floor of the large-capacity conveying vessel 12, to improve the loading stability of the large-capacity conveying vessel 12, to mitigate damage to the large-capacity conveying vessel 12, and to extend the service life of the large-capacity conveying vessel 12.

[0020] As shown in Figures 1 to 3, the frame 1 consists primarily of a horizontal plate and a vertical plate, which are welded together vertically. A ribbed plate 3 is welded at a junction below the horizontal and vertical plates and is designed to reinforce the frame 1. Through holes are formed in the upper and lower ends of the vertical plate of the frame 1 and are designed to fix or fasten the frame 1 to the large-capacity conveying vessel.

[0021] As in the Fig. 1, Fig. 2 to Fig. Figure 3 shows that in embodiment 1 of the present invention, one end of the steel wire rope shock absorber 2 is fastened by bolts on the left and right sides of the vertical plate and the upper side of the horizontal plate of the frame 1, and the other ends are correspondingly and firmly fastened to the left and right sides and the lower side of the rear end of the lining plate guide frame 6.

[0022] As in the Fig. 4 and Fig. As shown in Figure 5, concave sliding grooves are formed in the two sides of the front of the lining plate guide frame 6 and are designed to provide rails for moving the lining plate carrier 4 upwards and downwards.

[0023] As in the Fig. 6 and Fig.In embodiment 1, the lining plate support 4, as shown in Figure 7, consists primarily of an L-shaped structural plate and an upper horizontal plate, which are welded together. Threaded holes are formed in the upper horizontal plate of the lining plate support 4. Two lifting lugs 9 are symmetrically attached to the upper end of the upper horizontal plate and are designed to lift, move, and dismantle the lining plate support 4.

[0024] When in use, the coal discharge buffer devices 13 in the present invention are attached to the side walls of the large-capacity conveying vessel 12 and the landing position for discharged coal. If the lining plate 5 is damaged due to an impact, the lining plate support 4 can be lifted out of the concave sliding grooves in the lining plate guide frame 6 using the lever tabs 9, and the bolts 7 are loosened to complete the installation and replacement of the lining plate 5.

[0025] The above descriptions are merely preferred embodiments of the present invention. It is understood that a person skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications shall be within the scope of protection of the present invention.

Claims

[1] Coal discharge buffer conveying vessel (12) with a large loading volume for a mine, comprising a conveying vessel (12) with a large loading volume, wherein a loading vessel box (14) is installed at the top of the conveying vessel (12) with a large loading volume, at least one coal discharge buffer device (13) is arranged on the inner side wall of the conveying vessel (12) with a large loading volume, wherein each coal discharge buffer device (13) comprises: a frame (1) which is firmly connected to the inner side wall of the conveying vessel (12) with a large loading volume; a lining plate guide frame (6) which is connected to the frame (1) by means of shock absorbers (2), wherein guide sliding grooves are formed in the lining plate guide frame (6); a lining plate carrier (4) which is slidably inserted in the guide grooves in the lining plate guide frame (6), wherein lifting lugs (9) are arranged at the upper end of the lining plate carrier (4); and a lining plate (5) which is detachably connected to the lining plate support (4) by means of fastening elements. [2] Coal drop buffer conveying vessel (12) with a large loading volume for a mine according to claim 1, wherein the number of coal drop buffer devices (13) is at least two, one coal drop buffer device (13) is located on the inner side wall opposite the side of the discharge outlet of the loading vessel box (14) in the conveying vessel (12) with a large loading volume, and the other coal drop buffer device (13) is located at a landing position for dropped coal on the inner bottom of the conveying vessel (12) with a large loading volume. [3] Coal discharge buffer conveying vessel (12) with a large loading volume for a mine according to claim 1, wherein the frame (1) has a horizontal plate and a vertical plate which are rigidly connected, the upper and lower ends of the vertical plate are each rigidly connected to a conveying vessel by means of fastening elements, and a ribbed plate (3) is arranged at the connection position between the horizontal plate and the vertical plate to reinforce the strength of the frame (1). [4] Coal discharge buffer conveying vessel (12) with a large loading volume for a mine according to claim 3, wherein the shock absorbers (2) are steel wire rope shock absorbers, the number of steel wire rope shock absorbers (2) is three, two steel wire rope shock absorbers (2) are arranged vertically and symmetrically on the left and right sides of the vertical plate between the vertical plate and the lining plate guide frame (6), and the other steel wire rope shock absorber (2) is arranged horizontally between the horizontal plate and the bottom of the lining plate guide frame (6). [5] Coal discharge buffer conveying vessel (12) with a large loading volume for a mine according to claim 1, wherein inwardly concave guide sliding grooves are formed in the two sides of the front of the lining plate guide frame (6), and the guide sliding grooves are arranged to provide rails for movement upwards and downwards of the lining plate carrier (4). [6] Coal discharge buffer conveying vessel (12) with a large loading volume for a mine according to claim 1, wherein the lining plate support (4) has an L-shaped structural plate and an upper horizontal plate on the upper part of the L-shaped structural plate, and a plurality of first threaded holes with equal spacing are formed in the upper horizontal plate; second threaded holes in the upper end of the lining plate (5) are formed in positions corresponding to the first threaded holes in the upper horizontal plate; the fastening elements are bolts (7), and the threaded ends of the bolts (7) extend successively through the first threaded holes and the second threaded holes to firmly connect the lining plate (5) and the lining plate support (4) together. [7] Coal discharge buffer conveying vessel with large loading volume for a mine according to claim 6, wherein compression springs (8) are used to prevent loosening between the groove ends of the bolts (7) and the upper horizontal plate of the lining plate carrier (4).

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