A coal mine gangue transport system and use method

Abstract

The present invention discloses a coal mine underground gangue transfer system and use method, which belongs to the field of gangue processing technology, and includes a chamber body, including a gangue conveyor belt arranged in the chamber body, and a gangue separator arranged on the gangue conveyor belt; a transfer channel is arranged below the chamber body, and a first bin and a second bin are connected between the chamber body and the transfer channel; the first bin is arranged opposite to the gangue separator, and the second bin corresponds to the end of the conveyor belt; a gangue crushing device is arranged in the second bin; and a gangue transport vehicle is arranged in the transfer channel. By arranging the first bin and the second bin, the chamber body and the transfer channel are connected, and the first bin and the second bin are used alternately, the upper limit of gangue transfer and processing per unit time is increased, and the screening of gangue is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of gangue treatment, in particular to a gangue transport system and a use method for an underground coal mine. Background Art

[0002] A chamber is a horizontal tunnel with a large cross section and a short length that does not directly lead to the surface exit. Its function is to install various equipment and machines, store materials and tools, or for other special purposes, such as machine repair rooms, explosives warehouses, rest rooms, etc.

[0003] Gangue is the stone mixed in the coal seam, which contains a small amount of combustibles and is not easy to burn. It is commonly known as "gangue". During the mining process, the crushed stone mined from the mine or mixed with the ore. The thin rock layer in the middle of the coal seam is called "interlayer stone". The gangue pile on the ground of the mine is called "gangue mountain". Some gangue can be used as raw materials for construction materials.

[0004] The current underground waste rock crushing chamber adopts a single-bin method, that is, at the intersection of the main transportation system and the stone gate, a waste rock crushing chamber is constructed above, and a waste rock bin is constructed in two tunnels (upper and lower) (see Figure 1 ), the height of the gangue bin is 4 meters. After the gangue in the raw coal is screened out by the roller screen of the main transport system, it enters the gangue bin through a low-speed belt. The gangue is transported to the ground or filled by the ore receiving car set up below the gangue bin. Single bin design, no redundancy. When large pieces of gangue block the bin, the entire gangue screening system will not be able to operate. The single bin has a small volume and low efficiency. The amount of gangue screened every day is large, and large pieces of gangue occupy the space of the gangue bin, resulting in a smaller volume and a short buffer time, which causes the gangue transportation system under the bin to be tense. Frequent replacement of gangue loading vehicles is required to meet the gangue screening of the main transport system. Summary of the invention

[0005] In order to solve the problem that the gangue crushing chamber with a single bin design has a small transfer volume per unit time, which affects the operation efficiency, the present invention provides a coal mine underground gangue transfer system and a use method.

[0006] On the one hand, the present invention is achieved through the following technical solutions:

[0007] A coal mine underground gangue transport system and use method, comprising a chamber body, a gangue conveyor belt arranged in the chamber body, and a gangue separator arranged on the gangue conveyor belt;

[0008] A transfer channel is provided below the chamber body, and a first bin and a second bin are connected between the chamber body and the transfer channel;

[0009] The first bin is arranged opposite to the gangue separator, and the second bin corresponds to the end of the conveyor belt;

[0010] The second bin is provided with a gangue crushing device;

[0011] A gangue transport vehicle is provided in the transfer channel.

[0012] By setting up the first and second bins, the connection between the chamber body and the transfer channel is realized, and the first and second bins are used alternately, the upper limit of gangue transportation and processing per unit time is increased, and the screening of gangue is realized.

[0013] A further improvement of the present invention is that the above-mentioned gangue separator includes a telescopic cylinder installed on the top of the chamber body, and a lower end of the telescopic cylinder is connected to an inclined material baffle plate.

[0014] A further improvement of the present invention is that the bottoms of the first bin and the second bin are both provided with an overall funnel-shaped structure.

[0015] A further improvement of the present invention is that the discharge ports of the first bin and the second bin are respectively rotatably provided with two fan-shaped gates capable of closing the discharge channel formed by the first bin and the second bin.

[0016] A further improvement of the present invention is that the two sector gates are rotatably arranged on the discharge channel through rotating shafts, and the two rotating shafts are provided with tooth patterns that are mutually interwoven; a telescopic oil cylinder No. 2 is provided on the discharge channel, and the telescopic oil cylinder No. 2 is connected to one of the sector gates through a connecting rod mechanism.

[0017] A further improvement of the present invention is that a dredging piece is provided in the above-mentioned discharge channel, and the dredging piece is connected to a chain extending to the outside of the discharge channel and linked to the second telescopic cylinder.

[0018] Another aspect of the present invention is achieved by the following steps:

[0019] A method for using a gangue transport system in a coal mine, comprising the following steps:

[0020] S1, drive the slag separator to the retracted state, and the two fan-shaped gates are in the closed state;

[0021] S2, the gangue conveyor belt transports the gangue to the second bin, and the gangue is crushed by the gangue crushing device;

[0022] S3. Open the two fan-shaped gates at the bottom of the second bin, and the gangue transport vehicle in the transfer channel takes over the falling gangue;

[0023] S4, when the upper limit of gangue processing is reached in step S2, the gangue separator is started to introduce the gangue on the gangue conveyor belt into a bin;

[0024] S5. Open the two fan-shaped gates at the bottom of a warehouse, and the gangue transport vehicle in the transfer channel will take over the falling gangue.

[0025] A further improvement of the present invention is the method for using the above-mentioned coal mine underground gangue transfer system, wherein when the second telescopic cylinder opens the fan-shaped gate, the synchronous linkage chain lifts the dredging member.

[0026] It can be seen from the above technical scheme that the beneficial effects of the present invention are: by setting up the first bin and the second bin to achieve the connection between the chamber body and the transfer channel, the first bin and the second bin are used alternately, the upper limit of the gangue transportation and processing per unit time is increased, and the screening of the gangue is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0028] Figure 1 This is a schematic diagram of the existing chamber structure.

[0029] Figure 2 It is a structural schematic diagram of a specific implementation mode of the present invention.

[0030] Figure 3 It is a schematic diagram of the fan-shaped gate structure according to a specific embodiment of the present invention.

[0031] In the attached drawings: 1. Chamber body; 11. Gangue conveyor belt; 2. Bin 1; 3. Bin 2; 31. Gangue crushing device; 4. Transfer channel; 41. Gangue transport vehicle; 5. Gangue separator; 51. Telescopic cylinder 1; 52. Material baffle; 6. Fan-shaped gate; 61. Telescopic cylinder 2; 62. Connecting rod mechanism; 63. Rotating shaft; 64. Chain. DETAILED DESCRIPTION

[0032] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in this specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0033] As attached Figure 2-3As shown, a coal mine underground gangue transport system and use method, including a chamber body 1, including a gangue conveyor belt 11 arranged in the chamber body 1, and a gangue separator 5 is arranged on the gangue conveyor belt 11; the gangue separator 5 includes a telescopic oil cylinder 1 51 installed on the top of the chamber body 1, and the lower end of the telescopic oil cylinder 1 51 is connected to an inclined material baffle plate 52, and the inclined material baffle plate 52 forms an inclined angle with the conveying direction of the gangue conveyor belt 11 in the horizontal plane. So as to realize the separation and transportation of gangue through the material baffle plate 52.

[0034] A transfer channel 4 is provided below the chamber body 1, and a first bin 2 and a second bin 3 are connected between the chamber body 1 and the transfer channel 4; the bottoms of the first bin 2 and the second bin 3 are both provided with an overall funnel-shaped structure.

[0035] The first bin 2 is arranged opposite to the gangue separator 5, and the second bin 3 corresponds to the end of the conveyor belt; a gangue crushing device is arranged in the second bin 3. The gangue crushing device is a hammer crusher.

[0036] A gangue transport vehicle 41 is provided in the transfer channel 4 .

[0037] By setting the first bin 2 and the second bin 3, the connection between the chamber body 1 and the transfer channel 4 is realized, the first bin 2 and the second bin 3 are used alternately, the upper limit of the gangue transportation and processing per unit time is increased, and the screening of the gangue is realized.

[0038] The discharge ports of the first bin 2 and the second bin 3 are respectively rotatably provided with two fan-shaped gates 6 capable of closing the discharge channel formed by the first bin 2 and the second bin 3.

[0039] The two fan-shaped gates 6 are rotatably arranged on the discharge channel through shafts 63 , and the two shafts 63 are provided with tooth patterns that are mutually interwoven; a second telescopic cylinder 61 is provided on the discharge channel, and the second telescopic cylinder 61 is connected to one of the fan-shaped gates 6 through a connecting rod mechanism 62 .

[0040] A dredging member is provided in the discharge channel, and the dredging member is in a cross-shaped structure as a whole. The dredging member is connected to a chain 64 extending to the outside of the discharge channel and linked to the telescopic oil cylinder 2 61; the chain 64 is connected to the connecting rod mechanism 62. The cross-shaped dredging member is pulled, so that the dredging member and the gangue pile at the arch are pushed upward from bottom to top, thereby realizing the dredging operation of the gangue.

[0041] A method for using a gangue transport system in a coal mine, comprising the following steps:

[0042] S1, driving the gangue separator 5 to the retracted state, and the two fan-shaped gates 6 are in the closed state;

[0043] S2, the gangue conveyor belt 11 transports the gangue to the second bin 3, and the gangue is crushed by the gangue crushing device;

[0044] S3, open the two fan-shaped gates 6 at the bottom of the second bin 3, and the gangue transport vehicle 41 in the transfer channel 4 receives the falling gangue;

[0045] S4, when the upper limit of gangue processing is reached in step S2, the gangue separator 5 is started to introduce the gangue on the gangue conveyor belt 11 into a bin 2;

[0046] S5. Open the two fan-shaped gates 6 at the bottom of a warehouse 2, and the gangue transport vehicle 41 in the transfer channel 4 receives the falling gangue.

[0047] When the telescopic oil cylinder 2 61 opens the fan-shaped gate 6, the synchronous linkage chain 64 pulls the dredging member.

[0048] The coal mine underground gangue transfer system and use method described in the present invention realizes the connection between the chamber body and the transfer channel by setting the first bin and the second bin, realizes the alternating use of the first bin and the second bin, improves the upper limit of gangue transfer processing per unit time, and realizes the screening of gangue.

[0049] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0050] The terms "upper", "lower", "outer side", "inner side", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish the relative relationship in position if they exist, and do not need to be qualitative. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0051] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A coal mine gangue transport system, comprising a chamber body (1), characterized in that: The invention comprises a gangue conveyor belt (11) arranged in a chamber body (1), and a gangue separator (5) arranged on the gangue conveyor belt (11); a transfer channel (4) is arranged below the chamber body (1), and a first bin (2) and a second bin (3) are connected between the chamber body (1) and the transfer channel (4); the first bin (2) and the gangue separator (5) are arranged opposite to each other, and the second bin (3) corresponds to the end of the conveyor belt; a gangue crushing device is arranged in the second bin (3); a gangue transport vehicle (41) is arranged in the transfer channel (4); the gangue separator (5) comprises a telescopic oil cylinder (51) installed on the top of the chamber body (1), and the telescopic oil cylinder (51) is arranged on the top of the chamber body (1). The lower end of the first bin (51) is connected to an inclined material baffle plate (52); the bottom of the first bin (2) and the second bin (3) are both provided with an overall funnel-shaped structure; the discharge ports of the first bin (2) and the second bin (3) are respectively provided with two fan-shaped gates (6) capable of closing the discharge channel formed by the first bin (2) and the second bin (3); the two fan-shaped gates (6) are respectively rotatably arranged on the discharge channel through a rotating shaft (63), and the two rotating shafts (63) are provided with teeth that mesh with each other; a telescopic oil cylinder (61) is provided on the discharge channel, and the telescopic oil cylinder (61) is connected to one of the fan-shaped gates (6) through a connecting rod mechanism (62).

2. A coal mine gangue transport system according to claim 1, characterized in that: A dredging piece is provided in the discharge channel, and the dredging piece is connected to a chain (64) extending to the outside of the discharge channel and linked to the second telescopic oil cylinder (61).

3. A method for using the underground coal mine gangue transport system as claimed in claim 2, characterized in that: The following steps are involved: S1, driving the gangue separator (5) to a retracted state, and the two fan-shaped gates (6) are in a closed state; S2, the gangue conveyor belt (11) transports the gangue to the second bin (3), and the gangue is crushed by the gangue crushing device; S3, opening the two fan-shaped gates (6) at the bottom of the second bin (3), and the gangue transport vehicle (41) in the transfer channel (4) receives the falling gangue; S4, when the gangue processing upper limit is reached in step S (2), starting the gangue separator (5) to introduce the gangue on the gangue conveyor belt (11) into the first bin (2); S5, opening the two fan-shaped gates (6) at the bottom of the first bin (2), and the gangue transport vehicle (41) in the transfer channel (4) receives the falling gangue.

4. The method for using the underground coal mine gangue transport system according to claim 3, characterized in that: When the second telescopic oil cylinder (61) opens the fan-shaped gate (6), the synchronous linkage chain (64) lifts the dredging member.

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