Bulk material treatment device for unloading station of side-dumping mine car and use method of bulk material treatment device

Abstract

The invention discloses a side dumping type mine car unloading station bulk material processing device and a using method thereof. The side dumping type mine car unloading station bulk material processing device comprises an unloading bent rail; the ore storage bin is arranged below one side of the discharging bent rail, a part of the ore storage bin extends to the front of the discharging bent rail to form a large block containing cavity, and a discharging space is reserved between one side of the ore storage bin and one side of the discharging bent rail; the sliding rail is installed on one side of the ore bin, one end of the sliding rail extends to exceed the large block containing cavity, and the other end of the sliding rail is flush with the inlet end of the discharging bent rail; the sliding plate is connected to the sliding rail in a sliding manner; the turntables are rotationally connected to the side, back to the ore storage bin, of the sliding plate and are distributed along an oblique line forming a certain included angle with the horizontal plane; one end of the rotating shaft is installed in the rotating disc, the other end of the rotating shaft extends to the side, facing the ore bin, of the sliding plate, and the other end of the rotating shaft is partially located above the discharging space. The device has the beneficial effect that large materials are prevented from being clamped between the curved rail and the side wall.

Description

Technical Field

[0001] The present invention relates to the technical field of underground material unloading assistance, and particularly to a device for handling large-sized materials at a side-dumping mine car unloading station and a method for using the same. Background Art

[0002] At present, in underground coal and metallurgical mines in China, mine cars are mainly used for transportation. According to different unloading methods, they are divided into bottom-dumping and side-dumping. The principle of bottom-dumping is that the bottom of the mine car is provided with an openable gate (such as a plug-type or chain-type gate), and the bottom is opened by a mechanical or hydraulic device to make the material fall vertically to the conveyor or storage bin below. The principle of side-dumping is that a side-opening discharge door is provided on the side of the mine car, and the side door is opened by a manual, pneumatic or hydraulic device, and the material is unloaded from the side. Currently, the most commonly used is the curved-rail unloading. The principle is that a curved rail is set on the unloading station track. When the mine car travels to the curved-rail section, the wheels move along the curved-rail track, forcing the car body to automatically tilt and unload. However, in the underground mine car unloading station, due to the small space between the curved rail and the side wall and insufficient design space, in order to ensure the running stability of the mine car, the gap between the curved rail and the side plate (or guardrail) is usually designed to be small (such as 300 - 500 mm). However, large-sized materials with a size of ≥800 mm are often produced by mine blasting, resulting in size mismatch. The large-sized materials often get stuck between the curved rail and the side wall, and it is difficult to handle. It is found that the operator needs to enter the guardrail. It is not easy to stand on the site, and a safety belt needs to be fastened. A crowbar is used to pry the large-sized materials, and then the materials are turned over the curved rail and into the ore bin. Usually, the effect is not good. Or a sledgehammer is used to strike the large-sized materials. It is difficult to stand on the site and special attention needs to be paid to safety. The problem is solved by breaking the large-sized materials. Smaller large-sized materials are generally okay, but larger ones basically have no effect. If explosives are used to break the large-sized materials into the ore bin, it will bring hidden dangers to the equipment and the foundation.

[0003] Chinese Patent Publication No. CN119774322A discloses a system that can both increase the gangue transportation volume and expand the gangue dumping area, including a first counterweight car track, a second counterweight car track, a single-sided curved-rail side-dumping mine car, and a bottom-side-dumping mine car. The first counterweight car track and the second counterweight car track are laid above the gangue dumping area and on the unloading platform through a truss. The second counterweight car track is arranged parallel to the first counterweight car track. The single-sided curved-rail side-dumping mine car travels on the first counterweight car track and is used to dump gangue to the left side of the unloading platform. The bottom-side-dumping mine car travels on the second counterweight car track and is used to dump gangue to the front side of the unloading platform. This patent is used to solve the problem that the gangue dumping area cannot be effectively expanded and does not involve the problem of large-sized materials being stuck.

[0004] The Chinese utility model patent publication number CN220952739U discloses a side-dumping mine car unloading curved rail, which is used to support the unloading wheels of the mine car. It is parallel to the transport track in the traveling direction and includes a curved rail and a frame; the curved rail has a bottom slope section, a top slope section, and a climbing section connected between the bottom slope section and the top slope section; wherein, during the transition of the rail surface from the bottom slope section to the top slope section, it transitions from a horizontal plane to an inclined plane, and any current rail surface of the curved rail is parallel to the axle of the unloading wheel. This patent is used to solve the problem that the unloading wheel and the axle are easily damaged by torsional force, and does not involve the problem of large pieces of materials being stuck. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that the gap between the curved rail and the side plate (or guardrail) of the existing underground side-dumping mine car unloading station is small, resulting in large pieces of materials being stuck and difficult to handle. Therefore, a large-piece material handling device for a side-dumping mine car unloading station and its usage method are provided.

[0006] The technical solution of the present invention is: a large-piece material handling device for a side-dumping mine car unloading station, including: a discharging curved rail; a bunker, the bunker is opened below one side of the discharging curved rail and partially extends in front of the discharging curved rail to form a large-piece accommodating cavity, and there is a discharging space left between one side of the bunker and one side of the discharging curved rail; a slide rail, the slide rail is installed on one side of the bunker, one end of the slide rail extends beyond the large-piece accommodating cavity, and the other end is flush with the inlet end of the discharging curved rail; a sliding plate, the sliding plate is slidably connected to the slide rail; a plurality of turntables, the plurality of turntables are rotatably connected to the side of the sliding plate facing away from the bunker and are distributed along an oblique line at a certain angle to the horizontal plane; a rotating shaft, one end of the rotating shaft is installed in the turntable and the other end extends to the side of the sliding plate facing the bunker, and the other end of the rotating shaft is partially located above the discharging space; a driving member, the driving member drives the plurality of turntables to rotate.

[0007] An improvement of the above solution is that a cylinder is installed on the outside of the turntable, and the piston rod of the cylinder is fixedly connected to the rotating shaft. When the cylinder contracts, it will drive the rotating shaft to retract to the edge of the bunker.

[0008] In the above solution, the driving member includes a belt sleeved on the plurality of turntables.

[0009] In the above solution, the inner surface of the belt is provided with an internal gear, and the outer surface of the turntable is provided with an external gear meshing with the internal gear.

[0010] A further improvement of the above solution is that the inner bottom of one end of the slide rail has an inclined portion that is recessed downward. When the sliding plate slides to the inclined portion, it will tilt downward.

[0011] In the above solution, the discharge curved rail includes: a track laid above the ore bin; a unilateral guiding track inclined with respect to the horizontal plane; a unilateral discharge track arranged horizontally, with one end of the unilateral discharge track connected to the highest end of the unilateral guiding track; and a limiting rod perpendicularly and fixedly connected to the other end of the unilateral discharge track.

[0012] The usage method of the large - block treatment device for the side - discharge mine car unloading station includes the following steps: The side - discharge mine car moves onto the discharge curved rail, and the side - discharge mine car gradually starts to discharge while tilting. The driving member drives a plurality of turntables to start rotating. Normal - sized materials fall into the discharging space through the rotating shafts, and large - block materials are blocked between the plurality of rotating shafts, pushing the sliding plate to slide towards one end of the slide rail. The large - block materials are driven to move downward along the height direction of the turntable due to the rotation of the plurality of rotating shafts until they are driven into the large - block accommodating cavity.

[0013] The beneficial effect of the present invention is that through the cooperation of the turntables and rotating shafts with the discharging space, large - block materials are caught. The turntables and rotating shafts rotate, driving the large - block materials above to continuously move forward along the height - descending direction into the large - block accommodating cavity, preventing large - block materials from being stuck between the curved rail and the side, and at the same time classifying large - block materials and other materials, which is convenient for subsequent processing. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the large - block material treatment device for the side - discharge mine car unloading station of the present invention; Figure 2 is Figure 1 a schematic diagram of the cooperation between the cylinder and the sliding plate in Figure 3 It is a schematic diagram of the slide rail of the preferred example of the present invention; In the figure, 1. ore bin, 2. large - block accommodating cavity, 3. discharging space, 4. slide rail, 5. sliding plate, 6. turntable, 7. rotating shaft, 8. cylinder, 9. belt, 10. inclined part, 11. track, 12. unilateral guiding track, 13. unilateral discharge track, 14. limiting rod. Detailed Embodiments

[0015] Next, in combination with the embodiments, the technical solutions in the present invention are described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

[0016] Such as Figure 1As shown in the figure, the large - block material handling device for the side - unloading mine car unloading station includes: a discharging curved rail; a bunker 1, which is opened below one side of the discharging curved rail and partially extends in front of the discharging curved rail to form a large - block accommodating cavity 2. There is a discharging space 3 between one side of the bunker and one side of the discharging curved rail; a slide rail 4, which is installed on one side of the bunker, one end of the slide rail extends beyond the large - block accommodating cavity, and the other end is flush with the inlet end of the discharging curved rail; a sliding plate 5, which is slidably connected to the slide rail; a number of turntables 6, which are rotatably connected to the side of the sliding plate facing away from the bunker and are distributed along an oblique line at a certain angle to the horizontal plane; a rotating shaft 7, one end of the rotating shaft is installed in the turntable and the other end extends to the side of the sliding plate facing the bunker, and the other end of the rotating shaft is partially located above the discharging space; a driving member, which drives the number of turntables to rotate.

[0017] As an embodiment of the present invention, the turntables are distributed at intervals along the oblique line in the length direction of the sliding plate and the height continuously decreases along the advancing direction of the side - unloading mine car. There are five turntables, and correspondingly five rotating shafts. The gap between two adjacent rotating shafts is ensured to be able to catch large - block materials.

[0018] As a preferred example of the present invention, a cylinder 8 is installed on the outer side of the turntable. The piston rod of the cylinder is fixedly connected to the rotating shaft. When the cylinder contracts, it will drive the rotating shaft to retract to the edge of the bunker. The cylinder rotates synchronously with the turntable and is stationary relative to the rotating shaft. Therefore, the telescoping of the cylinder will not affect the rotation of the rotating shaft. In this way, when the sliding plate moves to the side of the large - block accommodating cavity, the rotating shaft can retract, allowing the large - block materials on it to smoothly fall into the large - block accommodating cavity, preventing large - block materials with irregular shapes from getting stuck on the rotating shaft and affecting the processing of the next batch of large - block materials.

[0019] As an embodiment of the present invention, the driving member includes a belt 9 sleeved on a number of turntables. The belt is driven to rotate manually or by an external power source, and the belt drives the turntables to rotate. The inner surface of the belt is provided with an internal gear, and the outer surface of the turntable is provided with an external gear meshing with the internal gear. Of course, it can also be other possible driving forms, or by arranging a motor beside the turntable to drive the turntable to rotate.

[0020] As a preferred example of the present invention, the inner bottom of one end of the slide rail has an inclined portion 10 that is recessed downward. When the sliding plate slides to the inclined portion, it will tilt downward. The inclined portion enables the sliding plate to tilt at a certain angle, and such an inclination can prompt the large - block materials to smoothly separate from the rotating shaft and enter the large - block accommodating cavity.

[0021] The discharging curved rail includes: a rail 11, which is laid above the ore bin; a unilateral guiding rail 12, which is inclined with respect to the horizontal plane; a unilateral discharging rail 13, which is horizontally arranged, and one end of the unilateral discharging rail is connected to the highest end of the unilateral guiding rail; a limiting rod 14, which is vertically and fixedly connected to the other end of the unilateral discharging rail. The limiting rod is used to limit the side-dumping mine car 3 to prevent the side-dumping mine car 3 from moving forward.

[0022] The using method of the large-piece material processing device at the side-dumping mine car unloading station includes the following steps: The side-dumping mine car moves onto the discharging curved rail, and the side-dumping mine car gradually starts to discharge materials while tilting. The driving member drives a plurality of turntables to start rotating. Materials of normal size fall into the discharging space through the rotating shafts, and the large-piece materials are blocked between the plurality of rotating shafts, pushing the sliding plate to slide towards one end of the slide rail. The large-piece materials are driven to move downward along the height direction of the turntable due to the rotation of the plurality of rotating shafts until they are driven to fall into the large-piece accommodating cavity.

[0023] The concept of the present invention is to intercept large-piece materials on the rotating shafts in advance, drive the large-piece materials to advance on the rotating shafts through the rotation of the rotating shafts. Since the diameter of the large-piece materials is relatively large, by setting a reasonable interval between the rotating shafts, the large-piece materials can fall on the rotating shafts and finally fall into the large-piece accommodating cavity, realizing the separation of the large-piece materials from the other materials. A partition can be provided between the large-piece accommodating cavity and the ore bin to completely isolate the large-piece materials from the other materials, facilitating subsequent classification processing.

Claims

1. Bulk material handling device for side-dumping mine car unloading station, characterized by comprising: Discharge curved rail; Bunker (1), the bunker is opened below one side of the discharge curved rail and partially extends to the front of the discharge curved rail to form a large-piece accommodating cavity (2), and there is a discharging space (3) left between one side of the bunker and one side of the discharge curved rail; Slide rail (4), the slide rail is installed on one side of the bunker, one end of the slide rail extends beyond the large-piece accommodating cavity, and the other end is flush with the inlet end of the discharge curved rail; Slide plate (5), the slide plate is slidably connected to the slide rail; A plurality of turntables (6), a plurality of the turntables are rotatably connected to the side of the slide plate facing away from the bunker and are distributed along an oblique line at a certain angle to the horizontal plane; Rotating shaft (7), one end of the rotating shaft is installed in the turntable and the other end extends to the side of the slide plate facing the bunker, and the other end of the rotating shaft is partially located above the discharging space; Driving member, the driving member drives a plurality of turntables to rotate.

2. The large material handling device of the side-dumping mine car unloading station according to claim 1, characterized in that: A cylinder (8) is installed on the outer side of the turntable, and the piston rod of the cylinder is fixedly connected to the rotating shaft. When the cylinder contracts, it will drive the rotating shaft to retract to the edge of the bunker.

3. The large-piece material handling device for the side-dumping mine car unloading station according to claim 1, wherein: The driving member includes a belt (9) sleeved on a plurality of turntables.

4. The large-piece material handling device of the side-dumping mine car unloading station according to claim 3, characterized in that: The inner surface of the belt is provided with an internal gear, and the outer surface of the turntable is provided with an external gear meshing with the internal gear.

5. The large material handling device of the side-dumping mine car unloading station according to claim 1, characterized in that: The inner bottom of one end of the slide rail has an inclined portion (10) that is recessed downward. When the slide plate slides to the inclined portion, it will tilt downward.

6. The large lump material handling device of the side-dumping mine car unloading station according to claim 1, characterized in that: The discharge curved rail includes: a track (11), the track is laid above the bunker; a unilateral guiding track (12), the unilateral guiding track is inclined to the horizontal plane; a unilateral discharging track (13), the unilateral discharging track is horizontally arranged, and one end of the unilateral discharging track is connected to the highest end of the unilateral guiding track; a limiting rod (14), the limiting rod is vertically fixedly connected to the other end of the unilateral discharging track.

7. The usage method of the large-sized material handling device for the side-dumping mine car unloading station according to any one of claims 1-6, characterized in that: Including the following steps: The side-dumping mine car moves onto the discharge curved rail, the side-dumping mine car gradually starts to discharge while tilting, the driving member drives a plurality of turntables to start rotating, the normal-sized materials fall into the discharging space through the rotating shaft, the large-sized materials are blocked between a plurality of rotating shafts, pushing the slide plate to slide towards one end of the slide rail, and the large-sized materials are driven to move downward along the height direction of the turntable due to the rotation of a plurality of rotating shafts until they are driven to fall into the large-piece accommodating cavity.

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