Method for replacing rubber belt of uphill rubber belt conveyor

Abstract

The invention discloses a method for replacing a rubber belt of an uphill rubber belt conveyor. The method comprises the steps that a new belt penetrates through a belt replacing device and extends in the uphill direction of a gangue hill; the head end of the new belt is fixed to the upper side of the old belt close to the foot of the mountain when the uphill belt conveyor is shut down; then the uphill belt conveyor is started, so that the new belt moves along with the old belt; after the new belt bypasses the head of the uphill rubber belt conveyor at the top of the gangue hill, stopping the uphill rubber belt conveyor, and cutting off the old belt close to the foot of the hill; the uphill belt conveyor is started, and the old belt is pulled outwards through the end, close to the ground, of the old belt; the old belt and the new belt are unfixed, and the head end and the tail end of the new belt are vulcanized; according to the belt replacing device, the belt replacing device is arranged below the mountain foot of the gangue dump, a new belt can be lifted up and smoothly enters the uphill belt conveyor in the process of replacing the new belt, the belt replacing efficiency is improved, and the working intensity of workers is relieved.

Description

Technical Field

[0001] The invention belongs to the technical field of coal mining, and in particular relates to a method for replacing a belt of an uphill belt conveyor. Background Art

[0002] The uphill belt conveyor is a special application form of the belt conveyor, which is mainly used for material transportation in uphill scenarios. In the prior art, the belt changing process of the uphill belt conveyor mainly relies on manual operation, with the help of winches, cranes and other tools. Since the stacking point of the new belt is 10 meters away from the entry point of the new belt into the uphill belt conveyor, the new belt is prone to deviation during belt spreading, resulting in the inability of the new belt and the old belt to overlap and fix, which in turn causes the new belt to rub against the ground before entering the uphill belt conveyor, increasing the difficulty of pulling the belt and even breaking the new belt; in addition, since the uphill belt conveyor has a certain angle with the horizontal plane, the new belt will not be able to completely fit the old belt of the uphill belt conveyor during the belt spreading process, resulting in low operating efficiency and increasing the labor intensity of the operators. Summary of the invention

[0003] The purpose of the present invention is to provide a belt changing device for an uphill belt conveyor to solve the problems of lack of auxiliary equipment, low operating efficiency, easy deviation of the belt, difficulty in pulling the belt due to friction between the new belt and the ground, and the inability of the new belt to completely fit the old belt of the uphill belt conveyor when replacing the belt of the uphill belt conveyor.

[0004] The present invention adopts the following technical scheme: a method for replacing a belt on an uphill belt conveyor, comprising:

[0005] Step 1: Place the belt changing device at the foot of the waste rock mountain and close to the entrance of the chamber where the uphill belt conveyor climbs out of the ground from underground, so that the belt changing device and the uphill belt conveyor are in the same direction;

[0006] Step 2: Pass the new belt through the belt changing device and extend it toward the uphill direction of the waste rock pile. During the extension process, the belt changing device guides the new belt and the new belt has the same direction as the old belt.

[0007] Step 3: When the uphill belt conveyor stops, fix the head end of the new belt to the upper side of the old belt near the foot of the mountain; then start the uphill belt conveyor so that the new belt moves with the old belt;

[0008] Step 4: After the new belt passes around the head of the uphill belt conveyor at the top of the waste rock mountain, stop the uphill belt conveyor and cut off the old belt near the foot of the mountain;

[0009] Step 5: Start the uphill belt conveyor, and pull the old belt outward through the end of the old belt close to the ground until the old belt is completely pulled out and the fixing point of the old belt and the new belt reaches the foot of the mountain again;

[0010] Step 6: Unfasten the old belt and the new belt, and vulcanize the head and tail ends of the new belt.

[0011] Furthermore, before fixing the old belt and the new belt in step 3, part of the upper roller frame of the old belt near the foot of the mountain on the uphill belt conveyor is removed to facilitate the vulcanization of the head end and the tail end of the new belt later.

[0012] Further, the belt changing device comprises:

[0013] The support frame is located in the middle of the uphill belt conveyor and at the foot of the waste rock mountain. The uphill belt conveyor is used to transport the waste rock upward from the underground mine, and then transport it to the top of the waste rock mountain after climbing out of the tunnel on the ground from the underground mine, and discharge the waste rock.

[0014] The first roller is horizontally installed on the side of the support frame close to the well, and multiple groups are arranged in parallel along the direction of the support frame, which are used to support the new belt of the uphill belt conveyor and make the new belt unfold on it and away from the ground to avoid friction with the ground;

[0015] The third roller is horizontally installed on the side of the support frame close to the waste rock pile;

[0016] The second roller is horizontally installed on the support frame and is located below the third roller. A receiving area is formed between the third roller and the second roller. The receiving area is used for the new belt from the upper side of the first roller to pass through and be transported to the upper side of the old belt. The new belt and the old belt are fixed together and then transported upward under the power of the uphill belt conveyor to complete the belt change.

[0017] Furthermore, a plurality of first rollers are provided, and a distance between two adjacent first rollers is 1 to 3 meters.

[0018] Furthermore, the support frame consists of a left fixed rod and a right fixed rod parallel to each other, both of which are fixed on the ground at the foot of the mountain near the waste rock mountain, and the angle between the direction of the left fixed rod and the right fixed rod and the direction of the belt of the uphill belt conveyor is 140° to 155°.

[0019] Furthermore, it also includes:

[0020] The fourth roller and the fifth roller are respectively installed on the left fixed rod and the right fixed rod. The installation direction of the fourth roller and the fifth roller is perpendicular to the installation direction of the second roller. The fourth roller and the fifth roller are relatively arranged and located between the first roller and the second roller.

[0021] The beneficial effects of the present invention are:

[0022] The present invention provides a belt changing device at the foot of the waste rock mountain, so that the new belt can be lifted up and smoothly enter the uphill belt conveyor during the replacement process, thereby improving the belt changing efficiency and reducing the work intensity of the workers; it can avoid the new belt from directly rubbing on the ground before entering the uphill belt conveyor, thereby reducing the difficulty of pulling the belt; by passing the new belt through the accommodation area between the second roller and the third roller of the belt changing device, it is possible to adjust the angle of the new belt before entering the uphill belt conveyor, thereby avoiding the failure of the new belt to fit with the old belt during the belt extension process;

[0023] The present invention can avoid the deviation problem of the new belt during the belt extension process by arranging the fourth roller and the fifth roller in the belt changing device which are perpendicular to the installation direction of the second roller, which is conducive to overlapping and fixing the new belt and the old belt, thereby facilitating the belt changing;

[0024] The method for replacing the belt of the present invention is simple to operate, causes little damage to the new belt, and only requires two winches to relay and pull the old belt to complete the belt replacement. In addition, only the uphill belt conveyor needs to be started and stopped, so that the new belt can be replaced along the direction of the old belt under the power of the uphill belt conveyor, thereby greatly reducing the energy consumption and time in the belt replacement process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the belt changing device of the present invention;

[0026] Among them, 1. support frame, 2. first roller, 3. second roller, 4. third roller, 5. left fixed rod, 6. right fixed rod, 7. fourth roller, 8. fifth roller. DETAILED DESCRIPTION

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

[0028] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, 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 cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0029] The present invention provides a method for replacing a belt of an uphill belt conveyor, comprising:

[0030] Step 1: Place the belt changing device at the foot of the waste rock mountain and close to the entrance of the chamber where the uphill belt conveyor climbs out of the ground from underground, so that the belt changing device and the uphill belt conveyor are in the same direction;

[0031] Step 2: Pass the new belt through the belt changing device and extend it toward the uphill direction of the waste rock pile. During the extension process, the belt changing device guides the new belt and the new belt has the same direction as the old belt.

[0032] Step 3: When the uphill belt conveyor stops, fix the head end of the new belt to the upper side of the old belt near the foot of the mountain; then start the uphill belt conveyor so that the new belt moves with the old belt;

[0033] Step 4: After the new belt passes around the head of the uphill belt conveyor at the top of the waste rock mountain, stop the uphill belt conveyor and cut off the old belt near the foot of the mountain;

[0034] Step 5: Start the uphill belt conveyor, and pull the old belt outward through the end of the old belt close to the ground until the old belt is completely pulled out and the fixing point of the old belt and the new belt reaches the foot of the mountain again;

[0035] Step 6: Unfasten the old belt and the new belt, and vulcanize the head and tail ends of the new belt.

[0036] Before fixing the old belt and the new belt in step 3, part of the upper roller frame of the old belt near the foot of the mountain on the uphill belt conveyor is removed to facilitate the vulcanization of the head end and the tail end of the new belt later.

[0037] The belt changing device comprises: a support frame 1 , a first roller 2 , a third roller 4 , and a second roller 3 .

[0038] The support frame 1 is located in the middle of the uphill belt conveyor and at the foot of the waste rock mountain; the uphill belt conveyor is used to transport the waste rock upward from the underground, and then climb out of the tunnel on the ground from the underground to the top of the waste rock mountain, and discharge the waste rock.

[0039] The first roller 2 is horizontally installed on the side of the support frame 1 close to the well, and multiple groups are arranged in parallel along the direction of the support frame 1. The first roller 2 is used to support the new belt of the uphill belt conveyor, and allows the new belt to be unfolded on it and away from the ground to avoid friction with the ground.

[0040] The third roller 4 is horizontally installed on the side of the support frame 1 close to the waste rock mountain; the second roller 3 is horizontally installed on the support frame 1 and is located below the third roller 4; a receiving area is formed between the third roller 4 and the second roller 3, and the receiving area is used for the new belt from the upper side of the first roller 2 to pass through and be transported to the upper side of the old belt; thereby, the new belt and the old belt are fixed together and transported upward under the power of the uphill belt conveyor to complete the belt change.

[0041] Preferably, a plurality of first rollers 2 are provided, and the interval between two adjacent first rollers 2 is 1 to 3 meters.

[0042] Preferably, the support frame 1 is composed of a left fixed rod 5 and a right fixed rod 6 which are parallel to each other. The left fixed rod 5 and the right fixed rod 6 are both fixed on the ground at the foot of the mountain near the waste rock mountain. The angle between the direction of the left fixed rod 5 and the right fixed rod 6 and the direction of the belt of the uphill belt conveyor is 140° to 155°.

[0043] The belt changing device of the present invention also includes: a fourth roller 7 and a fifth roller 8, which are respectively installed on the left fixed rod 5 and the right fixed rod 6, and the installation direction of the fourth roller 7 and the fifth roller 8 is perpendicular to the installation direction of the second roller 3. The fourth roller 7 and the fifth roller 8 are relatively arranged and located between the first roller 2 and the second roller 3.

[0044] When changing the belt, the present invention stretches the new belt and places it on the upper side of multiple parallel first rollers 2, so that the new belt can be more closely fitted to the old belt when it moves along with the old belt. In addition, since the belt forms a certain angle with the horizontal direction during the operation of the uphill belt conveyor, the construction personnel need to pass the new belt through the accommodating area between the second roller 3 and the third roller 4 to perform the belt pressing operation, and cooperate with the fourth roller 7 and the fifth roller 8 to avoid deviation and running of the new belt during the uphill process.

[0045] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for replacing a belt on an uphill belt conveyor, characterized in that: include: Step 1: Place the belt changing device at the foot of the waste rock mountain and close to the entrance of the chamber where the uphill belt conveyor climbs out of the ground from underground, so that the belt changing device and the uphill belt conveyor are in the same direction; Step 2: Pass the new belt through the belt changing device and extend it toward the uphill direction of the waste rock pile. During the extension process, the belt changing device guides the new belt and the new belt has the same direction as the old belt. Step 3: When the uphill belt conveyor stops, fix the head end of the new belt to the upper side of the old belt near the foot of the mountain; then start the uphill belt conveyor so that the new belt moves with the old belt; Step 4: After the new belt passes around the head of the uphill belt conveyor at the top of the waste rock mountain, stop the uphill belt conveyor and cut off the old belt near the foot of the mountain; Step 5: Start the uphill belt conveyor, and pull the old belt outward through the end of the old belt close to the ground until the old belt is completely pulled out and the fixing point of the old belt and the new belt reaches the foot of the mountain again; Step 6: Unfasten the old belt and the new belt, and vulcanize the head and tail ends of the new belt.

2. A method for replacing a belt on an uphill belt conveyor according to claim 1, characterized in that: Before fixing the old belt and the new belt in step 3, remove part of the upper roller frame of the old belt near the foot of the uphill belt conveyor to facilitate the vulcanization of the head and tail ends of the new belt later.

3. A method for replacing a belt on an uphill belt conveyor according to claim 1, characterized in that: The belt changing device comprises: The support frame (1) is located in the middle of the uphill belt conveyor and at the foot of the waste rock mountain; the uphill belt conveyor is used to transport the waste rock upward from the underground mine, and then transport it to the top of the waste rock mountain after climbing out of the tunnel on the ground from the underground mine, and discharge the waste rock; The first roller (2) is horizontally mounted on the side of the support frame (1) close to the well, and multiple groups are arranged in parallel along the direction of the support frame (1), and are used to support the new belt of the uphill belt conveyor, so that the new belt is unfolded on it and away from the ground to avoid friction with the ground; A third roller (4) is horizontally mounted on a side of the support frame (1) close to the waste rock pile; The second roller (3) is horizontally mounted on the support frame (1) and is located below the third roller (4); a receiving area is formed between the third roller (4) and the second roller (3), and the receiving area is used for the new belt from the upper side of the first roller (2) to pass through and be transported to the upper side of the old belt; thereby, the new belt and the old belt are fixed together and transported upward under the power of the uphill belt conveyor to complete the belt replacement.

4. A method for replacing a belt on an uphill belt conveyor according to claim 3, characterized in that: A plurality of first rollers (2) are provided, and the distance between two adjacent first rollers (2) is 1 to 3 meters.

5. A method for replacing a belt on an uphill belt conveyor according to claim 3, characterized in that: The support frame (1) is composed of a left fixed rod (5) and a right fixed rod (6) which are parallel to each other. The left fixed rod (5) and the right fixed rod (6) are both fixed on the ground at the foot of a mountain near the waste rock mountain. The angle between the direction of the left fixed rod (5) and the direction of the belt of the uphill belt conveyor is 140° to 155°.

6. A method for replacing a belt on an uphill belt conveyor according to claim 3, characterized in that: Also includes: A fourth roller (7) and a fifth roller (8), wherein the fourth roller (7) and the fifth roller (8) are respectively mounted on a left fixed rod (5) and a right fixed rod (6), wherein the mounting directions of the fourth roller (7) and the fifth roller (8) are perpendicular to the mounting direction of the second roller (3), and the fourth roller (7) and the fifth roller (8) are arranged opposite to each other and are located between the first roller (2) and the second roller (3).

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