A method for moving and removing a belt conveyor for intelligent mining and transportation chute

Abstract

The present invention discloses a method for moving and withdrawing a belt conveyor for intelligent mining and transportation chute, comprising the following steps: (1) modifying the belt conveyor; (2) when the tail of the modified belt conveyor needs to move forward as the coal mining working face advances, the belt conveyor is in an unloaded parking state; (3) starting from the middle frame near the head of the middle part of the belt conveyor, one or more groups of middle frames with the same moving distance as the tail are removed, and the wheels and connecting steel plates corresponding to the middle frames are removed, and the remaining parts remain unchanged; (4) the steel rope of the traction equipment passes through the connecting groove of the connecting part of the first wheelset of the remaining part, and the remaining part is pulled to the head of the machine; while pulling back, the belt storage device works to retract the excess belt. The present invention can realize the remote movement of the tail of the belt conveyor following the advancement of the working face.

Description

Technical Field

[0001] The invention relates to the technical field of mining chute belt transportation, and in particular to a method for moving and removing a belt conveyor used in an intelligent mining and transportation chute. Background Art

[0002] In the backward mining of coal mines, the coal mined from the coal mining face passes through the scraper conveyor and the transfer machine and falls onto the tail of the belt conveyor in the transport chute. As the coal mining face continues to advance, the tail of the belt conveyor also has to move continuously in the advancement direction with the transfer machine, and the total length of the belt conveyor continues to decrease.

[0003] At present, the method for the tail of the machine to move along with the work surface is to manually dismantle the tail of the machine at a certain distance, that is, the staff arrives at the tail of the conveyor, breaks the belt and cuts off a certain length, disassembles the rollers and frames at the corresponding distance, and splices the remaining belts to meet the requirements of the working surface position. Generally, two moving methods are used: one method is to use a winch to pull the tail of the belt conveyor to move, and then move the winch after pulling a certain distance, and so on; the other method is to use a cylinder to pull the tail of the belt conveyor to move. The cylinder includes two horizontal cylinders and two anchor cylinders. The anchor cylinders are supported in the roadway as force points, and the horizontal cylinders are used to pull the tail of the belt conveyor to move. This requires staff to arrive at the tail of the machine to operate.

[0004] At present, unmanned intelligent working faces have promoted a major change in coal production. The innovation of production methods is reflected in all aspects of coal mine production. The movement of belt conveyors in the transport chute following the working face also needs to be changed. Summary of the invention

[0005] The purpose of the present invention is to provide a method for moving and withdrawing a belt conveyor used in an intelligent mining and transportation chute, coordinate existing technologies, and enable workers to move the belt conveyor tail remotely following the advancement of the working face without having to reach the tail of the conveyor, thereby promoting further upgrading of intelligent mining technology.

[0006] The present invention is achieved by adopting the following technical solutions:

[0007] A method for moving and removing a belt conveyor for intelligent mining and transportation chute comprises the following steps:

[0008] (1) Modification of belt conveyor

[0009] The belt conveyor comprises a head part, a middle part and a tail part, wherein a belt storage device is arranged in the head part, the head part is fixed to the ground of the tunnel, and the bracket legs of each group of intermediate frames of the middle part and the tail part are located on a wheel pair;

[0010] The wheelset comprises a steel shaft, wheels and brake discs are mounted at both ends of the steel shaft, leg grooves are respectively provided on the upper surfaces of the two ends of the steel shaft for inserting two bracket legs of a set of intermediate frames, fixing holes penetrating the leg grooves are respectively opened on both sides of the steel shaft, two connecting parts are arranged on the side of the steel shaft, and connecting grooves are arranged on the connecting parts; connecting steel plates are installed between the connecting parts of adjacent wheelsets, and the two ends of the connecting steel plates are respectively connected to the connecting grooves of the connecting parts of adjacent wheelsets through fixing steel cores;

[0011] A traction device is arranged in front of the machine head, and the traction device is connected to the connection part of the first wheel pair through a steel rope;

[0012] All wheel sets are located on rails laid on the ground of the tunnel, and the bracket legs of all intermediate frames are inserted into corresponding leg grooves and locked by screwing pins into fixing holes.

[0013] (2) As the coal mining face advances, when the tail of the modified belt conveyor needs to move forward, the belt conveyor is in an unloaded shutdown state.

[0014] (3) Starting from the intermediate frame near the head of the belt conveyor, remove one or more sets of intermediate frames with the same moving distance as the tail of the machine, and remove the wheels and connecting steel plates corresponding to the intermediate frames of this set, and leave the remaining parts unchanged.

[0015] (4) The steel rope of the traction equipment passes through the connection groove of the connection part of the first wheel pair of the remaining part, pulling the remaining part to the head of the machine; while pulling back, the belt storage device works to retract the excess belt.

[0016] (5) When the belt conveyor needs to move its tail again, repeat steps (2) to (4) to remove the rack until the belt storage device of the belt conveyor reaches saturation.

[0017] (6) Cut the belt, release the retracted belt through the belt storage device, and then splice the belt.

[0018] (7) When the belt conveyor needs to move its tail again, repeat steps (2) to (6) to remove the frame until the coal mining face reaches the stop line.

[0019] Compared with the prior art, the present invention is applied to the method for moving and withdrawing the belt conveyor of the intelligent mining and transportation chute, which can realize the remote movement of the belt conveyor tail following the advancement of the working face. The staff does not need to reach the tail of the machine to operate, but can remove the rollers and brackets at the head of the machine; it is easy to install and disassemble; the disassembled equipment and parts can serve other coal mining working faces.

[0020] The invention has reasonable design and good popularization and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the modified belt conveyor.

[0022] Figure 2 Schematic diagram of the wheelset after modification.

[0023] Figure 2a Shows the front view of the leg slot.

[0024] Figure 2b Shows the top view of the leg slot.

[0025] Figure 3 Schematic diagram showing the connecting elements of adjacent wheelsets.

[0026] In the figure: 1-wheel set, 2-track, 3-modified belt conveyor, 4-traction device, 5-support leg, 6-belt storage device, 7-belt, 8-roller, 9-steel rope, 10-wheel, 11-steel shaft, 12-leg groove, 13-connecting part, 14-connecting groove, 15-fixing hole, 16-fixing steel core, 17-connecting steel. Ⅰ-machine head, Ⅱ-middle part (composed of several sets of middle frames), Ⅲ-machine tail. DETAILED DESCRIPTION

[0027] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] A method for moving and removing a belt conveyor for intelligent mining and transportation chute comprises the following steps:

[0029] (1) Modification of belt conveyor

[0030] like Figure 1 As shown, the belt conveyor 3 includes a head portion I, a middle portion II and a tail portion III. A belt storage device 6 is provided in the head portion I. The head portion I is fixed to the ground of the tunnel. The support legs 5 of each group of intermediate frames of the middle portion II and the tail portion III are all located on a wheel pair 1.

[0031] like Figure 2 As shown, the wheelset 1 includes a steel shaft 11, with wheels 10 and brake discs mounted at both ends of the steel shaft 11. The upper surfaces of the two ends of the steel shaft 11 are respectively provided with leg grooves 12 for inserting two support legs 5 of a set of intermediate frames. The shape and size of the leg grooves 12 match the cross-section of the conveyor support legs 5, as shown in FIG. Figure 2a , 2b As shown, horizontal fixing holes 15 penetrating the leg grooves 12 are respectively provided on both sides of the steel shaft 11, and two connecting parts 13 (used to connect with the front and rear adjacent wheelsets, and the two connecting parts 13 can be located on the same side or on different sides) are integrally provided on the side of the steel shaft 11, and a circular connecting groove 14 is provided on the connecting part 13; a connecting steel plate 17 is installed between the connecting parts 13 of the adjacent wheelsets 1, as shown in FIG. Figure 3As shown, both ends of the connecting steel plate 17 are connected to the connecting grooves 14 of the connecting parts 13 of the adjacent wheelsets 1 through the fixing steel cores 16 .

[0032] A traction device 4 is arranged in front of the machine head portion I, and the traction device 4 is connected to the connection portion 13 of the first wheel set 1 through a steel rope 9.

[0033] All wheel sets 1 are located on rails 2 laid on the ground of the lane, and the support legs 5 of all intermediate frames are inserted into corresponding support leg grooves 12 and locked by screwing pins into fixing holes 15 .

[0034] The difference between the modified belt conveyor 3 and the traditional belt conveyor is that the support legs of the tail part III and the support legs of the middle part II of the belt conveyor 3 are not fixed on the roadway ground, but are fixed in the support leg grooves 12 of the steel shaft 11 of the wheelset 1, and the wheelset 1 runs on the track 2. The traction device 4 is installed in front of the head part I, and provides sufficient traction to pull the middle part and the tail of the modified belt conveyor 3 to move.

[0035] (2) As the coal mining face advances, when the tail portion III of the modified belt conveyor 3 needs to move forward, the belt conveyor 3 is in an unloaded parking state.

[0036] (3) Starting from the intermediate frame of the middle part II of the belt conveyor 3 close to the head part I, remove one or more sets of intermediate frames with the same moving distance as the tail part III, and remove the wheelset 1 and connecting steel plate 17 corresponding to the intermediate frames of this set, and leave the remaining parts unchanged.

[0037] (4) The steel rope 9 of the traction device 4 passes through the connection groove 14 of the connection part 13 of the first wheel pair 1 of the remaining part, and pulls the remaining part to the head part I; while pulling back, the belt storage device 6 of the belt conveyor 3 works to retract the excess belt 7.

[0038] (5) When the belt conveyor 3 needs to move the tail portion III again, repeat steps (2) to (4) to remove the rack until the belt storage device 6 of the belt conveyor 3 reaches saturation.

[0039] (6) The staff cuts the belt 7 corresponding to the length of the rack withdrawal, and the belt storage device 6 releases the recovered belt and the staff splices the belt.

[0040] (7) When the belt conveyor 3 needs to move the tail part III again, repeat steps (2) to (6) to remove the frame until the coal mining face reaches the stop line.

[0041] The method of the invention disassembles the bracket at the head of the chute conveyor, and returns the remaining part by relying on the laid track, so that the tail of the machine reaches the designated position.

[0042] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and all technical solutions obtained by deformation, modification, equivalent substitution or equivalent substitution fall within the protection scope of the present invention.

Claims

1. A method for removing a belt conveyor for intelligent mining and transportation chute, characterized in that: The steps include: (A) Modified belt conveyor The belt conveyor (3) comprises a head portion (I), a middle portion (II) and a tail portion (III), wherein a belt storage device (6) is provided in the head portion (I), the head portion (I) is fixed to the ground of the tunnel, and the bracket legs (5) of each set of intermediate frames of the middle portion (II) and the tail portion (III) are all located on a wheel pair (1); The wheelset (1) comprises a steel shaft (11), wheels (10) and brake discs are mounted at both ends of the steel shaft (11), leg grooves (12) for inserting two bracket legs (5) of a set of intermediate frames are respectively provided on the upper surfaces of both ends of the steel shaft (11), fixing holes (15) penetrating the leg grooves (12) are respectively opened on both sides of the steel shaft (11), two connecting parts (13) are provided on the side of the steel shaft (11), and connecting grooves (14) are provided on the connecting parts (13); connecting steel plates (17) are installed between the connecting parts (13) of adjacent wheelsets (1), and both ends of the connecting steel plates (17) are respectively connected to the connecting grooves (14) of the connecting parts (13) of adjacent wheelsets (1) through fixing steel cores (16); A traction device (4) is arranged in front of the machine head (I), and the traction device (4) is connected to the connection part (13) of the first wheel pair (1) through a steel rope (9); All wheel sets (1) are located on a track (18) laid on the roadway floor, and all the bracket legs (5) of the intermediate frames are inserted into the corresponding leg grooves (12) and locked by screwing the pins into the fixing holes (15); (B) As the coal mining face advances, when the tail portion (III) of the modified belt conveyor (3) needs to move forward, the belt conveyor (3) is in an unloaded and stopped state; (C) Starting from the intermediate frame near the head (I) of the middle part (II) of the belt conveyor (3), remove one or more sets of intermediate frames with the same moving distance as the tail (III), and remove the wheel sets (1) and connecting steel plates (17) corresponding to the intermediate frames, and leave the remaining parts unchanged; (D), the steel rope (9) of the traction device (4) passes through the connection groove (14) of the connection part (13) of the first wheel pair (1) of the remaining part, and pulls the remaining part to the head (I); while pulling back, the belt storage device (6) works to retract the excess belt (7); (E) When the belt conveyor (3) needs to move the tail (III) again, repeat steps (B) to (D) to remove the rack until the belt storage device (6) of the belt conveyor (3) reaches saturation; (F), cutting the belt (7), splicing the belt after releasing the retracted belt from the belt storage device (6); (G) When the belt conveyor (3) needs to move the tail (III) again, repeat steps (B) to (F) to remove the frame until the coal mining face reaches the stop line.

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