Continuous miner for open pit coal mine end slope mining

Abstract

The utility model discloses a continuous miner for open pit coal mine end slope mining, and relates to the technical field of open pit coal mine end slope mining. Comprising a chassis, one side of the chassis is provided with a crushing collection box, one end, extending into the chassis, of the crushing collection box is provided with a conveying belt, one end, away from the crushing collection box, of the conveying belt extends out of the chassis, the top surface of the chassis is fixedly connected with an equipment box, the equipment box is in transmission connection with a coal mining assembly, and the coal mining assembly is arranged above the crushing collection box; a water spraying assembly is arranged on the coal mining assembly and communicated with a water tank, the water tank is fixedly connected with the chassis, and a cab is arranged on the top face of the equipment box. According to the utility model, dust generated by the coal mining assembly during coal mining can be covered by spraying water through the water spraying assembly, and dust generated by the crushing collection box during crushing can be covered by spraying water through the water spraying assembly, so that dust generated during coal mining and coal briquette crushing is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of open-pit coal mine end wall mining, in particular to a continuous coal mining machine used for open-pit coal mine end wall mining. Background Art

[0002] In recent years, the production and construction of open-pit coal mines in my country have developed rapidly. There are more than 30 open-pit coal mines with a capacity of tens of millions of tons that have been built or are under construction. A large proportion of open-pit coal mines in my country are located in slippery areas with gentle slope designs. At the same time, the coal seams are buried deep and the mine fields are wide, which leads to a large amount of end-wall coal resources in open-pit coal mines. End-wall coal mining technology is a technology that uses the exposed coal seams at the end of the open-pit coal mine to arrange coal mining equipment for raw coal mining. It does not require separate stripping or infrastructure construction. It has the characteristics of low coal resource mining cost, high production efficiency, and no ground collapse. It is of great significance to improve the coal resource recovery rate of my country's mining industry and enhance the economic benefits of coal enterprises.

[0003] The continuous coal mining machine currently in use is composed of a cutting part, a coal loading part, a coal transport part and a walking part, as well as a hydraulic system, an electrical system, etc.; the prior art publication number CN219387883U discloses a continuous coal mining machine, which can dissipate heat for the working hydraulic cylinder, the uniform crushing roller and the crushing knife through a heat dissipation and dust reduction device; and can also carry out dust reduction treatment for the dust generated by the crushing work, fully ensuring the user's field of vision; however, when the continuous coal mining machine is carrying out end-wall coal mining, the cutting part will also generate a large amount of dust, affecting the user's observation of the end-wall coal mining; therefore, there is an urgent need for a continuous coal mining machine for end-wall mining in open-pit coal mines, which can reduce the dust generated by the cutting part during end-wall coal mining, so that the user's field of vision is not affected by the dust, and can effectively mine the end wall of the coal mine. Utility Model Content

[0004] The utility model aims to provide a continuous coal mining machine for mining the end wall of an open-pit coal mine, so as to solve the problems existing in the above-mentioned prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following solution: The utility model provides a continuous coal mining machine for end-wall mining in open-pit coal mines, including a chassis, a crushing and collecting box is provided on one side of the chassis, a conveyor belt is provided at the end of the crushing and collecting box extending into the chassis, and the conveyor belt extends out of the chassis at one end away from the crushing and collecting box. An equipment box is fixedly connected to the top surface of the chassis, and a coal mining assembly is transmission-connected to the equipment box. The coal mining assembly is arranged above the crushing and collecting box. A water spray assembly is provided on the coal mining assembly, and the water spray assembly is connected to a water tank. The water tank is fixedly connected to the chassis, and a cab is provided on the top surface of the equipment box.

[0006] Preferably, the coal mining assembly includes a robotic arm drivingly connected to the equipment box. One end of the robotic arm away from the equipment box is fixedly connected to a connecting plate, and a cutting drum is provided at one end of the connecting plate away from the robotic arm.

[0007] Preferably, the piston end of a hydraulic cylinder is hinged to the bottom of one end of the robotic arm away from the equipment box, and the fixed end of the hydraulic cylinder is fixedly connected to the top surface of the chassis.

[0008] Preferably, the water spraying assembly includes vertical pipes symmetrically arranged and penetrating through the connecting plate. The two ends of the vertical pipes are respectively fixedly connected and communicated with a first horizontal pipe and a second horizontal pipe. The first horizontal pipe is arranged above the connecting plate, and the second horizontal pipe is arranged below the connecting plate.

[0009] Preferably, a hose of an automatic retractable hose reel is fixedly connected and communicated with the middle of the first horizontal pipe. The automatic retractable hose reel is fixedly connected to the top surface of the cab, and the automatic retractable hose reel is communicated with the water tank through a connecting pipe.

[0010] Preferably, one end of the connecting pipe extending into the water tank is fixedly connected and communicated with the water outlet end of a water pump, and the water pump is fixedly connected to the bottom inside the water tank.

[0011] Preferably, a plurality of first nozzles are fixedly connected and communicated with the first horizontal pipe. The plurality of first nozzles are arranged at equal intervals. The plurality of first nozzles are inclined, and the nozzles of the first nozzles are arranged facing the top of the cutting drum.

[0012] Preferably, a plurality of second nozzles and a plurality of third nozzles are fixedly connected and communicated with the second horizontal pipe. The plurality of second nozzles and the plurality of third nozzles are arranged at equal intervals between them. The plurality of second nozzles are inclined, and the nozzles of the second nozzles are arranged facing the bottom of the cutting drum. The nozzles of the plurality of third nozzles are arranged facing the crushing and collecting box.

[0013] Preferably, crawler wheels are arranged below the chassis, and the crawler wheels are drivingly connected to the equipment box.

[0014] Preferably, a ladder is arranged below the driver's door of the cab, and the ladder is fixedly connected to the side wall of the equipment box.

[0015] The present invention discloses the following technical effects:

[0016] The utility model can spray water on the crushing and collecting box and the coal mining assembly through the water spraying assembly. The water spraying assembly can cover the dust generated during coal mining by the coal mining assembly with water, effectively avoiding the generation of dust during coal mining. At the same time, the water spraying assembly can also cover the dust generated during crushing by the crushing and collecting box with water, effectively avoiding the generation of dust during coal crushing. Moreover, in this application, the cab is arranged on the top surface of the equipment box, so that the user's field of vision is not affected by dust and equipment, and coal can be effectively mined from the coal mine end slope. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 It is a schematic diagram of the structure of the water spraying assembly of the present utility model;

[0020] Figure 3 It is a schematic diagram of the structure of the first horizontal pipe of the present utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the second horizontal pipe of the present utility model;

[0022] Among them, 1, chassis; 2, equipment box; 3, water tank; 4, cab; 11, crawler wheel; 12, crushing and collecting box; 13, conveyor belt; 21, robotic arm; 22, hydraulic cylinder; 23, connecting plate; 24, cutting drum; 31, first horizontal pipe; 32, second horizontal pipe; 33, vertical pipe; 34, automatic retractable hose reel; 35, connecting pipe; 311, first nozzle; 321, second nozzle; 322, third nozzle; 41, ladder. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0024] To make the above - mentioned objects, features and advantages of the present utility model more obvious and understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] Referring to Figures 1-4 , the present utility model discloses a continuous miner for open - pit coal mine end - slope mining, including a chassis 1. One side of the chassis 1 is provided with a crushing and collecting box 12. One end of the crushing and collecting box 12 extending into the chassis 1 is provided with a conveyor belt 13. One end of the conveyor belt 13 away from the crushing and collecting box 12 extends out of the chassis 1. The top surface of the chassis 1 is fixedly connected with an equipment box 2. The equipment box 2 is drivingly connected with a coal - mining assembly. The coal - mining assembly is arranged above the crushing and collecting box 12. A water - spraying assembly is arranged on the coal - mining assembly. The water - spraying assembly is communicated with a water tank 3. The water tank 3 is fixedly connected with the chassis 1. The top surface of the equipment box 2 is provided with a cab 4.

[0026] The present utility model can spray water on the crushing and collecting box 12 and the coal - mining assembly through the water - spraying assembly. Through the water - spraying assembly, the dust generated by the coal - mining assembly during coal mining can be covered by spraying water, effectively avoiding the generation of dust during the coal - mining process. At the same time, through the water - spraying assembly, the dust generated by the crushing and collecting box 12 during crushing can also be covered by spraying water, effectively avoiding the generation of dust during coal - block crushing. And in this application, by arranging the cab 4 on the top surface of the equipment box 2, the user's vision is not affected by dust and equipment, and coal can be effectively mined from the coal - mine end - slope.

[0027] In a further optimized solution, the coal - mining assembly includes a robotic arm 21 drivingly connected with the equipment box 2. One end of the robotic arm 21 away from the equipment box 2 is fixedly connected with a connecting plate 23. One end of the connecting plate 23 away from the robotic arm 21 is provided with a cutting drum 24. The equipment box 2 controls the movement of the robotic arm 21, and the robotic arm 21 drives the cutting drum 24 through the connecting plate 23 to mine the coal - mine end - slope.

[0028] The robotic arm 21 is a device on an existing continuous miner and will not be elaborated here.

[0029] In a further optimized solution, the bottom of one end of the robotic arm 21 away from the equipment box 2 is rotatably connected with the piston end of a hydraulic cylinder 22. The fixed end of the hydraulic cylinder 22 is fixedly connected with the top surface of the chassis 1. Through the hydraulic cylinder 22, the robotic arm 21 can stably drive the cutting drum 24 to mine the coal - mine end - slope.

[0030] In a further optimized solution, the water - spraying assembly includes vertical pipes 33 symmetrically arranged and penetrating through the connecting plate 23. The two ends of the vertical pipes 33 are respectively fixedly connected and communicated with a first horizontal pipe 31 and a second horizontal pipe 32. The first horizontal pipe 31 is arranged above the connecting plate 23, and the second horizontal pipe 32 is arranged below the connecting plate 23.

[0031] A further optimized solution is that the middle part of the first transverse pipe 31 is fixedly connected and communicated with a hose of an automatic retractable hose reel 34 , the automatic retractable hose reel 34 is fixedly connected to the top surface of the cab 4 , and the automatic retractable hose reel 34 is communicated with the water tank 3 through a connecting pipe 35 .

[0032] According to a further optimized solution, one end of the connecting pipe 35 extending into the water tank 3 is fixedly connected and communicated with a water outlet end of a water pump, and the water pump is fixedly connected to the bottom of the water tank 3 .

[0033] According to a further optimization scheme, a plurality of first nozzles 311 are fixedly connected and communicated with the first transverse pipe 31 , the plurality of first nozzles 311 are arranged at equal intervals, the plurality of first nozzles 311 are arranged at an angle, and the nozzles of the first nozzles 311 are arranged toward the top of the cutting drum 24 .

[0034] A further optimized solution is that a plurality of second nozzles 321 and a plurality of third nozzles 322 are fixedly connected and communicated with the second transverse pipe 32, the plurality of second nozzles 321 and the plurality of third nozzles 322 are arranged at equal intervals, the plurality of second nozzles 321 are arranged at an angle and the nozzles of the second nozzles 321 are arranged toward the bottom of the cutting drum 24, and the nozzles of the plurality of third nozzles 322 are arranged toward the crushing collection box 12.

[0035] The water pump transports the water in the water tank 3 to the hose of the automatic retractable hose reel 34. After the water in the hose enters the first horizontal pipe 31, part of the water is sprayed out from the first nozzle 311, which can be used to spray water on the top of the cutting drum 24. After the other part of the water enters the second horizontal pipe 32 through the vertical pipe 33, part of the water is sprayed out from the second nozzle 321, which can be used to spray water on the bottom of the cutting drum 24. The other part of the water is sprayed out through the third nozzle 322, which can be used to spray water on the crushing collection box 12.

[0036] The first nozzle 311, the second nozzle 321, and the third nozzle 322 are water mist nozzles, and the water mist can effectively cover the dust to achieve a dust reduction effect.

[0037] Further optimizing scheme, the bottom of chassis 1 is provided with track wheel 11, and track wheel 11 is connected with equipment box 2. Chassis 1 can be driven to move by track wheel 11.

[0038] In a further optimized solution, a ladder 41 is provided below the driving door of the cab 4, and the ladder 41 is fixedly connected to the side wall of the equipment box 2. The user can easily enter and exit the cab 4 through the ladder 41.

[0039] Working process: The user enters the cab 4 through the ladder 41 and drives the chassis 1 to move by controlling the crawler wheels 11. When reaching the mining position, the water pump is first turned on. The water pump transports the water in the water tank 3 into the hose of the automatic retractable hose reel 34. After the water in the hose enters the first horizontal pipe 31, part of the water sprays out from the first nozzle 311 and can spray water on the top of the cutting drum 24. Another part of the water enters the second horizontal pipe 32 through the vertical pipe 33. After that, part of the water sprays out from the second nozzle 321 and can spray water on the bottom of the cutting drum 24. Another part of the water sprays out through the third nozzle 322 and can spray water on the crushing and collecting box 12. Then the cutting drum 24 is turned on for mining, and at the same time, the crushing and collecting box 12 is turned on to crush and collect the mined coal blocks. The crushed coal blocks are sent to the carriage of the transport vehicle through the conveyor belt 13. At the same time, the water sprayed out from the first nozzle 311 and the second nozzle 321 can spray and cover the dust generated by the cutting drum 24 during coal mining, effectively avoiding the generation of dust during the coal mining process. The water sprayed out from the third nozzle 322 sprays and covers the dust generated when the crushing and collecting box 12 is crushing, effectively avoiding the generation of dust when crushing the coal blocks. The cab 4 is arranged on the top surface of the equipment box 2, so that the user's vision is not affected by dust and equipment, and coal can be effectively mined from the coal mine end slope.

[0040] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0041] The above-described embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A continuous coal mining machine for open-pit coal mine end wall mining, characterized in that: The invention comprises a chassis (1), a crushing and collecting box (12) is arranged on one side of the chassis (1), a conveyor belt (13) is arranged at one end of the crushing and collecting box (12) extending into the chassis (1), and one end of the conveyor belt (13) away from the crushing and collecting box (12) extends out of the chassis (1), a device box (2) is fixedly connected to the top surface of the chassis (1), a coal mining component is drivingly connected to the device box (2), the coal mining component is arranged above the crushing and collecting box (12), a water spray component is arranged on the coal mining component, the water spray component is connected to a water tank (3), the water tank (3) is fixedly connected to the chassis (1), and a cab (4) is arranged on the top surface of the device box (2); The coal mining assembly comprises a mechanical arm (21) which is transmission-connected to the equipment box (2); an end of the mechanical arm (21) which is away from the equipment box (2) is fixedly connected to a connecting plate (23); and an end of the connecting plate (23) which is away from the mechanical arm (21) is provided with a cutting drum (24); The piston end of a hydraulic cylinder (22) is hingedly connected to the bottom of one end of the mechanical arm (21) away from the equipment box (2), and the fixed end of the hydraulic cylinder (22) is fixedly connected to the top surface of the chassis (1); The water spray assembly comprises a vertical pipe (33) which is symmetrically arranged and passes through the connecting plate (23), and two ends of the vertical pipe (33) are respectively fixedly connected to and communicated with a first horizontal pipe (31) and a second horizontal pipe (32); A plurality of first nozzles (311) are fixedly connected and communicated with the first transverse pipe (31), the plurality of first nozzles (311) are arranged obliquely and the nozzles of the first nozzles (311) are arranged toward the top of the cutting drum (24); A plurality of second nozzles (321) and a plurality of third nozzles (322) are fixedly connected and communicated with the second transverse pipe (32); the plurality of second nozzles (321) are arranged obliquely and the nozzles of the second nozzles (321) are arranged toward the bottom of the cutting drum (24); and the nozzles of the plurality of third nozzles (322) are arranged toward the crushing collection box (12).

2. The continuous coal mining machine for open-pit coal mine end wall mining according to claim 1, characterized in that: The first transverse tube (31) is arranged above the connecting plate (23), and the second transverse tube (32) is arranged below the connecting plate (23).

3. The continuous coal mining machine for open-pit coal mine end wall mining according to claim 2, characterized in that: A hose of an automatic telescopic hose reel (34) is fixedly connected to and communicated with the middle portion of the first transverse pipe (31); the automatic telescopic hose reel (34) is fixedly connected to the top surface of the cab (4); and the automatic telescopic hose reel (34) is communicated with the water tank (3) via a connecting pipe (35).

4. The continuous coal mining machine for open-pit coal mine end wall mining according to claim 3 is characterized in that: One end of the connecting pipe (35) extending into the water tank (3) is fixedly connected to and communicates with the water outlet end of a water pump, and the water pump is fixedly connected to the bottom of the water tank (3).

5. The continuous coal mining machine for open-pit coal mine end wall mining according to claim 2, characterized in that: A plurality of the first nozzles (311) are arranged at equal intervals.

6. The continuous coal mining machine for open-pit coal mine end wall mining according to claim 2, characterized in that: The plurality of second nozzles (321) and the plurality of third nozzles (322) are arranged at equal intervals.

7. The continuous coal mining machine for open-pit coal mine end wall mining according to claim 1, characterized in that: A track wheel (11) is provided below the chassis (1), and the track wheel (11) is drivingly connected to the equipment box (2).

8. The continuous coal mining machine for open-pit coal mine end wall mining according to claim 1, characterized in that: A ladder (41) is provided below the driving door of the driving cab (4), and the ladder (41) is fixedly connected to the side wall of the equipment box (2).

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