A complete set of equipment for continuous mining and loading of coal in open-pit coal mines and its use method

Abstract

The present invention discloses a complete set of equipment for continuous mining and loading of coal in an open-pit coal mine and a method for using the equipment, which relates to the technical field of coal mining and transportation, including a coal-breaking and loading machine, a transfer unit and a belt car. The coal mining mechanism takes the coal and transports the coal to the transfer unit through a transmission mechanism. According to the length of the coal conveying line from the coal pile to the belt car, a corresponding number of transfer machines are selected and connected one after the other; according to the coal terrain conditions, the connection angle and range between the transfer machines are adjusted; the coal is transported to the transmission mechanism, and as the conveyor belt operates, the coal enters the transfer unit. After the coal is transported to the belt car through the transfer unit, it can be transported to the destination with the belt car. The equipment of the present invention enhances the flexibility of open-pit coal mine transportation operations and realizes the continuous transportation of coal.

Description

Technical Field

[0001] The invention relates to the technical field of coal mining and transportation, and in particular to a complete set of equipment for continuous mining, loading and transportation of coal in an open-pit coal mine and a method for using the equipment. Background Art

[0002] In order to meet people's demand for coal use, how to improve the production capacity of open-pit coal mines has become an urgent problem to be solved. The low efficiency of coal transportation is one of the main problems affecting production capacity. At present, the main transportation methods for open-pit coal mines are truck transportation or traditional belt conveyors. Truck transportation has good flexibility, but the transportation efficiency is low and it is difficult to manage personnel. Although traditional conveyors have high efficiency, they have high requirements for road surfaces and lack flexibility. In response to the above problems, a coal transportation method that is both flexible and efficient is urgently needed. Summary of the invention

[0003] The purpose of the present invention is to provide a complete set of open-pit coal transportation equipment and a method of using the same, so as to solve the problems existing in the above-mentioned prior art, enhance the flexibility of open-pit coal mine transportation operations, and realize continuous transportation of coal.

[0004] To achieve the above object, the present invention provides the following solution: The present invention provides a complete set of equipment for continuous mining and loading of coal in an open-pit coal mine, comprising:

[0005] A breaker-loader, the breaker-loader comprising a transmission mechanism and a coal mining mechanism arranged on a loading body, the coal mining mechanism being installed on the front side of the movable loading body, the coal mining mechanism being used to take coal, and the transmission mechanism being used to transport coal;

[0006] A transfer unit, the transfer unit is provided at the transmission end of the breaker, the breaker and the movable transfer unit are connected via a traction seat, the transfer unit includes one transfer unit or multiple transfer units connected end to end in sequence, the transfer unit includes a connector, a retractable belt and a rotatable belt frame, the retractable belt is installed on the rotatable belt frame, and the transmission front end and rear end of the rotatable belt frame are respectively provided with the connector;

[0007] A belt car, the transmission end of the transfer unit is connected to the belt car through a traction seat.

[0008] Preferably, the coal mining mechanism comprises a rotary coal mining device, a movable arm and a cylinder, wherein the cylinder is mounted on a loading body and is used to drive the movable arm to move, and the rotary coal mining device is mounted on the front end of the movable arm.

[0009] Preferably, the transmission mechanism adopts a conveyor belt, which includes an inclined conveyor belt and a conveyor belt. The inclined conveyor belt is located at the bottom of the coal mining mechanism, and a shovel plate is installed at the bottom of the inclined conveyor belt. A rotating material collecting device is arranged between the shovel plate and the inclined conveyor belt. The top of the inclined conveyor belt is connected to the conveyor belt horizontally arranged on the loading body, and the coal on the inclined conveyor belt is transferred to the conveyor belt.

[0010] Preferably, a cab and an energy device are provided on the loading body, a crawler chassis is installed at the bottom of the loading body, and a protective steel plate is provided on the outer side of the loading body.

[0011] Preferably, the bottom of the rotatable belt frame is fixed on a rotation limiting mechanism, and the bottom of the rotation limiting mechanism is equipped with a crawler chassis.

[0012] Preferably, the rotation limiting mechanism comprises a hydraulic support rod, a rotation limiter and a locking mechanism. The rotation limiter is installed on the crawler chassis. The top of the rotation limiter is equipped with the hydraulic support rod. The locking mechanism is used to lock the hydraulic support rod. The rotation limiter is used to drive the hydraulic support rod to rotate and limit.

[0013] Preferably, a guide rail and a movable baffle are provided at the front end of the retractable belt.

[0014] The present invention also provides a method for using a complete set of equipment for continuous mining and loading of coal in an open-pit coal mine, which is applied to the above-mentioned complete set of equipment for continuous mining and loading of coal in an open-pit coal mine, and comprises the following steps:

[0015] First, transport the complete set of equipment for continuous mining and loading of open-pit coal mines to the work area, and connect the crushing and loading machine with the transfer unit through the traction seat; then, according to the length of the coal conveyor line from the coal pile to the belt car, select the corresponding number of transfer machines and connect them one after the other; according to the coal terrain conditions, adjust the connection angle and range between the transfer machines and choose whether to use the locking mechanism based on the actual situation; after the equipment is installed, the operator enters the operation room, controls the position of the rotary coal mining device, and then starts the rotary coal mining device to rotate it, sending the coal into the shovel plate, and then the rotary collecting device rotates to transport the coal to the transmission mechanism. As the conveyor belt operates, the coal enters the transfer unit. After the coal is transported to the belt car through the transfer unit, it can be transported to the destination with the belt car.

[0016] Compared with the prior art, the present invention has achieved the following beneficial technical effects:

[0017] The open-pit coal mine continuous mining and loading equipment and its use method of the present invention include a coal crusher, a transfer unit and a belt car. The coal mining mechanism takes the coal and transports the coal to the transfer unit through the transmission mechanism. According to the length of the coal conveying line from the coal pile to the belt car, a corresponding number of transfer machines are selected and connected one after the other; according to the coal terrain conditions, the connection angle and range between the transfer machines are adjusted; the coal is transported to the transmission mechanism, and as the conveyor belt operates, the coal enters the transfer unit. After the coal is transported to the belt car through the transfer unit, it can be transported to the destination with the belt car. The equipment of the present invention enhances the flexibility of open-pit coal mine transportation operations and realizes the continuous transportation of coal. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the overall structure of a complete set of equipment for continuous mining and loading of coal in an open-pit coal mine;

[0020] Figure 2 This is a top view of a complete set of equipment for continuous mining and loading of coal in an open-pit coal mine;

[0021] Figure 3 The structural composition diagram of the movable baffle;

[0022] Among them, 1. Breaker; 2. Transfer unit; 3. Belt truck; 4. Towing seat; 5. Crawler chassis; 6. Shovel board; 7. Rotating material collecting device; 8. Conveyor belt; 9. Protective steel plate; 10. Rotating coal mining device; 11. Boom; 12. Cylinder; 13. Cab; 14. Energy device; 15. Connector; 16. Retractable belt; 16-1. Guide rail; 16-2. Movable baffle; 16-3. Fixed rod; 16-4. Roller; 17. Rotatable belt rack; 18. Hydraulic support rod; 19. Rotation limiter; 20. Locking mechanism. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] The purpose of the present invention is to provide a complete set of open-pit coal transportation equipment and a method of using the same, so as to solve the problems existing in the above-mentioned prior art, enhance the flexibility of open-pit coal mine transportation operations, and realize continuous transportation of coal.

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] like Figure 1-Figure 3 As shown, the present invention provides a complete set of equipment for continuous mining and loading and transporting coal in an open-pit coal mine, comprising:

[0027] A coal-breaking and loading machine 1, comprising a transmission mechanism and a coal-cutting mechanism arranged on a loading body, wherein the coal-cutting mechanism is installed on the front side of the movable loading body, the coal-cutting mechanism is used to take the coal, and the transmission mechanism is used to transport the coal;

[0028] The transfer unit 2 is provided at the transmission end of the dismantling machine 1. The dismantling machine 1 and the transfer unit 2 are connected by a traction seat 4. The transfer unit 2 includes one transfer machine or multiple transfer machines connected end to end in sequence. The transfer machine includes a connector 15, a retractable belt 16 and a rotatable belt frame 17. The retractable belt 16 is installed on the rotatable belt frame 17. The transmission front end and rear end of the rotatable belt frame 17 are respectively provided with connectors 15;

[0029] The transmission end of the belt trolley 3 and the transfer unit 2 are connected to the belt trolley 3 through a traction seat 4.

[0030] In one embodiment, the coal mining mechanism includes a rotary coal mining device 10, a boom 11 and a cylinder 12. The cylinder 12 is installed on the loading body and is used to drive the boom 11 to move. The front end of the boom 11 is equipped with the rotary coal mining device 10.

[0031] The transmission mechanism adopts a conveyor belt 8, which includes an inclined conveyor belt 8 and a conveyor belt. The inclined conveyor belt 8 is located at the bottom of the coal mining mechanism, and a shovel plate 6 is installed at the bottom of the inclined conveyor belt 8. A rotating material collecting device 7 is arranged between the shovel plate 6 and the inclined conveyor belt 8. The top end of the inclined conveyor belt 8 is connected to the conveyor belt horizontally arranged on the loading body, and the coal on the inclined conveyor belt 8 is transferred to the conveyor belt.

[0032] A cab 13 and an energy device 14 are arranged on the loading body, a crawler chassis 5 is installed at the bottom of the loading body, and a protective steel plate 9 is arranged on the outer side of the loading body.

[0033] The conveyor belt 8 is set at an angle, and the protective steel plate 9 isolates the coal transportation environment from the machine operation environment to prevent damage to the machine and people. The rotary coal miner 10 is connected to the boom 11 and moves by means of a cylinder 12 placed on the main body. A cab 13 and an energy device 14 are set behind the boom 11 for crawler walking and operation, the operation of the conveyor belt 8 and the operation of other equipment. At the end of the transmission device on the chassis, a connecting device traction seat 4 is provided for connection with the transfer unit 2.

[0034] In one embodiment, the bottom of the rotatable belt frame 17 is fixed on the rotation limit mechanism, and the bottom of the rotation limit mechanism is equipped with a crawler chassis 5; the front end of the retractable belt 16 is provided with a guide rail 16-1 and a movable baffle 16-2. The guide rail 16-1 is installed at the front end of the rotatable belt frame 17, and the guide rail 16-1 has holes uniformly opened every 20 cm; Figure 3 As shown, the movable baffle 16-2 is a structure that is narrow at the top and wide at the bottom, the baffle surface is an arc-shaped surface, rollers 16-4 are provided at the bottom of both sides, and the fixing holes run through the top to the bottom. The fixing rod 16-3 passes through the holes to connect the movable baffle 16-2 with the guide rail 16-1 to achieve the purpose of fixation; the guide rail 16-1 and the movable baffle 16-2 are used to connect and dock the front side of the rotatable belt frame 17 with the previous structure; according to the docking length requirements, the movable baffle 16-2 can be installed at any hole on the guide rail 16-1.

[0035] The rotation limit mechanism includes a hydraulic support rod 18, a rotation limiter 19 and a locking mechanism 20. The rotation limiter 19 is installed on the crawler chassis 5. The top of the rotation limiter 19 is equipped with a hydraulic support rod 18. The locking mechanism 20 is used to lock the hydraulic support rod 18. The rotation limiter 19 is used to drive the hydraulic support rod 18 to rotate and limit. The rotation limiter 19 and the locking mechanism 20 both adopt conventional parts in the prior art, and they will not be described in detail here.

[0036] The retractable belt 16 is placed on the rotatable belt frame 17, and the rotatable belt frame 17 is connected to the crawler chassis 5 using two hydraulic support rods 18, and a rotation limiter 19 and a locking mechanism 20 are installed at the connection between the rotating base and the hydraulic support rod 18. The connector 15 includes a front connector 15 and a rear connector 15. In actual use, when two or more transfer machines are required to work, the front connector 15 is connected to the rear connector 15 to lengthen the transfer path.

[0037] The principle of open-pit coal transportation method relying on the above equipment is as follows:

[0038] When using the equipment, first transport the complete set of equipment required for the equipment to the working area, and connect the crusher 1 and the transfer unit 2 through the traction seat 4. Then select the corresponding number of transfer machines according to the length of the coal conveying line from the coal pile to the belt car 3, and connect them one after the other. According to the coal terrain conditions, adjust the appropriate connection angle and range between the transfer machines and choose whether to use the locking mechanism 20 according to the actual situation. After the equipment is installed, the operator enters the operation room, controls the position of the rotary coal miner 10, then turns on the rotary coal miner 10 to rotate it, and sends the coal into the shovel plate 6. Then the rotary receiving device 7 rotates to transport the coal to the conveyor belt 8 device. With the operation of the conveyor belt 8, the coal enters the transfer unit 2. The movable baffle 16-2 at the front end of the transfer machine is used to change the movement trajectory of some coal blocks, so that they fall accurately on the belt, and prevent the damage caused by the flying coal blocks. After the coal is transported to the belt car 3 through the transfer unit 2, it can be transported to the destination with the belt car 3.

[0039] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

[0040] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A method for using a complete set of equipment for continuous mining and loading of coal in an open-pit coal mine, characterized in that: The following steps are involved: First, transport the open-pit coal mine continuous mining and loading equipment to the work area, and connect the crusher and the transfer unit through the traction seat; then select the corresponding number of transfer machines according to the length of the coal conveyor line from the coal pile to the belt car, and connect the transfer machines one after the other; according to the coal terrain conditions, adjust the connection angle and range between the transfer machines and choose whether to use the locking mechanism according to the actual situation; after the equipment is installed, the operator enters the operation room, controls the position of the rotary coal miner, and then turns on the rotary coal miner to rotate it, and sends the coal into the shovel board, and then rotates the rotary receiving device to transport the coal to the transmission mechanism. With the operation of the conveyor belt, the coal enters the transfer unit. After the coal is transported to the belt car through the transfer unit, it can be transported to the destination with the belt car; The method for using the complete set of equipment for continuous mining and loading and transportation of coal in open-pit coal mines includes: A breaker-loader, the breaker-loader comprising a transmission mechanism and a coal mining mechanism arranged on a loading body, the coal mining mechanism being installed on the front side of the movable loading body, the coal mining mechanism being used to take coal, and the transmission mechanism being used to transport coal; A transfer unit, the transfer unit is provided at the transmission end of the breaker, the breaker and the movable transfer unit are connected via a traction seat, the transfer unit comprises a plurality of transfer units connected end to end in sequence, the transfer unit comprises a connector, a retractable belt and a rotatable belt frame, the retractable belt is installed on the rotatable belt frame, and the transmission front end and rear end of the rotatable belt frame are respectively provided with the connector; A belt car, the transmission end of the transfer unit is connected to the belt car through a traction seat.

2. The method for using the complete set of equipment for continuous mining and loading and transporting coal in an open-pit coal mine according to claim 1 is characterized by: The coal mining mechanism comprises a rotary coal mining device, a movable arm and a cylinder. The cylinder is installed on a loading body and is used to drive the movable arm to move. The rotary coal mining device is mounted on the front end of the movable arm.

3. The method for using the complete set of equipment for continuous mining and loading and transporting coal in an open-pit coal mine according to claim 1 is characterized by: The transmission mechanism adopts a conveyor belt, which includes an inclined conveyor belt and a conveyor belt. The inclined conveyor belt is located at the bottom of the coal mining mechanism, and a shovel plate is installed at the bottom of the inclined conveyor belt. A rotating material collecting device is arranged between the shovel plate and the inclined conveyor belt. The top end of the inclined conveyor belt is connected to the conveyor belt horizontally arranged on the loading body, and the coal on the inclined conveyor belt is transferred to the conveyor belt.

4. The method for using the complete set of equipment for continuous mining and loading and transporting coal in an open-pit coal mine according to claim 3 is characterized by: The loading body is provided with a cab and an energy device, the bottom of the loading body is installed with a crawler chassis, and the outer side of the loading body is provided with a protective steel plate.

5. The method for using the complete set of equipment for continuous mining and loading and transporting coal in an open-pit coal mine according to claim 1, characterized in that: The bottom of the rotatable belt frame is fixed on the rotation limiting mechanism, and the bottom of the rotation limiting mechanism is equipped with a crawler chassis.

6. The method for using the complete set of equipment for continuous mining and loading and transporting coal in an open-pit coal mine according to claim 5, characterized in that: The rotation limiting mechanism includes a hydraulic support rod, a rotation limiter and a locking mechanism. The rotation limiter is installed on the crawler chassis. The top of the rotation limiter is equipped with the hydraulic support rod. The locking mechanism is used to lock the hydraulic support rod. The rotation limiter is used to drive the hydraulic support rod to rotate and limit.

7. The method for using the complete set of equipment for continuous mining and loading and transporting coal in an open-pit coal mine according to claim 1, characterized in that: A guide rail and a movable baffle are arranged at the front end of the retractable belt.

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