Goaf drainage pipe lowering device

Abstract

The utility model discloses a goaf drainage pipe lowering device which comprises a main supporting pipe, a flange plate, a reinforcing fin, a front supporting rod, a separation supporting rod, a carrier roller, an upper supporting pipe, a lower supporting pipe, a connecting pipe and a screw rod. The supporting structure extending outwards is formed, the drainage pipe is supported, the drainage pipe leaves the empty area wall in the process of lowering the drainage pipe, the situations that the empty area wall rubs the drainage pipe and a wrapping layer is damaged are avoided, the construction quality is guaranteed, and meanwhile the drainage pipe is lowered more smoothly and easily; the drainage pipe support is high in structural strength, easy to install, free of limitation of narrow space on site and capable of stably supporting a drainage pipe.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of mine tailings filling, and particularly relates to a goaf drainage pipe lowering device. BACKGROUND

[0002] A mine cemented pillar drainage method is to drill a hole from the bottom of the pillar to the inside of the goaf for drainage, and the method has the following problems: first, the construction time is long, and is greatly affected by environmental factors; second, a large amount of manpower is consumed in construction; and third, the bottom of the hole is inserted with a pipe, and a valve is connected to prevent the cemented body from leaking out, but the pipe and the valve are prone to falling off in the use process, and have a high safety risk.

[0003] To reduce production costs and safety risks and improve the efficiency of cemented filling, some mining units may use a drainage pipe method for drainage, and the specific method is as follows: the length and quantity of the required pipe are calculated through a goaf scanning map; holes are drilled around the pipe at equal intervals, and a layer of cloth is wrapped around the pipe to prevent the cemented body from leaking and seeping water; the drainage pipe is lowered from the top of the goaf to the bottom of the goaf and hung on the wall of the goaf by a steel rope, and the overflow outlets of each pipe are spaced 3 meters apart; a valve is connected at the lower part, and when the valve flows turbid fluid, the valve is closed, and the process is repeated from bottom to top to complete the cemented filling drainage. During the lowering process of the drainage pipe, the pipe will rub against the wall of the goaf, causing the wrapping layer to be damaged, and the cemented body tailings will leak from the damaged cloth, and the friction also makes it difficult to lower the pipe. The space in the mine is limited, and it is difficult to build an operation platform in the traditional way, and it is time-consuming and laborious to build an operation platform. Therefore, it is necessary to develop a goaf drainage pipe lowering device that avoids friction with the wall of the goaf, prevents damage to the wrapping layer, and is easy to operate. SUMMARY

[0004] To solve the above technical problems, the purpose of the utility model is to provide a goaf drainage pipe lowering device.

[0005] The purpose of this utility model is achieved as follows: It includes a main support pipe, flanges, reinforcing fins, a front support rod, a partition support rod, a roller, an upper support pipe, a lower support pipe, a connecting pipe, and a screw. Along the length of the main support pipe, several flanges are fixed at equal intervals outside the main support pipe, with flanges at both ends. Between adjacent flanges, along the circumference of the main support pipe, several reinforcing fins are fixed at equal intervals outside the main support pipe. The ends of the reinforcing fins are fixed to the corresponding flanges. The front support rod is fixed to the front end of the main support pipe. The front support rod and the main support tube are perpendicular to each other. Along the front support rod, several partition support rods are fixed at equal intervals, and the front support rod and the partition support rods are perpendicular to each other. Adjacent partition support rods are rotatably connected to rollers. The flange is longitudinally fixed with a lower support tube. The upper end of the lower support tube has an internal thread structure. Both ends of the connecting tube have internal threads. The upper end of the lower support tube is threaded to the lower end of the connecting tube through a screw. The lower end of the upper support tube has an internal thread structure. The lower end of the upper support tube is threaded to the upper end of the connecting tube through a screw.

[0006] Preferably, there are four reinforcing fins between adjacent flanges.

[0007] Preferably, the distance between adjacent flanges is 1 meter.

[0008] Preferably, there are four dividing support rods, and a roller is provided between two adjacent dividing support rods.

[0009] Preferably, the idler roller has a diameter of 5 cm.

[0010] The beneficial effects of this utility model are as follows: This utility model forms an outwardly extending support structure that supports the drain pipe. During the process of lowering the drain pipe, it keeps the drain pipe away from the wall of the empty area, avoiding friction between the wall of the empty area and the drain pipe and damage to the wrapping layer, thus ensuring construction quality. At the same time, lowering the drain pipe is smoother and easier. This utility model has high structural strength, is easy to install, and is not limited by narrow space on site, and can stably support the drain pipe. Attached Figure Description

[0011] Fig. 1 This is a top view of the structure of this utility model;

[0012] Fig. 2 This is a schematic diagram of the elevation structure of this utility model;

[0013] Fig. 3 Schematic diagram of the main support pipe cross-section structure;

[0014] Fig. 4 This is a schematic diagram of the structure of the present invention in use;

[0015] In the diagram: 1-Main support pipe, 2-Flange, 3-Reinforcing wing, 4-Front support rod, 5-Divider support rod, 6-Idler roller, 7-Upper support pipe, 8-Lower support pipe, 9-Connecting pipe, 10-Screw rod, 11-Drainage pipe, 12-Goaf, 13-Sealed wall. Detailed Implementation

[0016] The present invention will be further described below with reference to the embodiments and accompanying drawings, but this does not limit the present invention in any way. Any changes or substitutions made based on the teachings of the present invention shall fall within the protection scope of the present invention.

[0017] Example 1

[0018] As attached Figs. 1-4 As shown, the goaf drainage pipe lowering device in this embodiment includes a main support pipe 1, flanges 2, reinforcing winglets 3, a front support rod 4, a separating support rod 5, a roller 6, an upper support pipe 7, a lower support pipe 8, a connecting pipe 9, and a screw 10. Along the length of the main support pipe 1, several flanges 2 are fixed at equal intervals outside the main support pipe 1, with flanges 2 at both ends of the main support pipe 1. The flanges 2 are spaced 1000mm apart. Four reinforcing winglets 3 are fixed at equal intervals outside the main support pipe 1 along the circumference of adjacent flanges 2. The ends of the reinforcing winglets 3 are fixed to the corresponding flanges 2. The front support rod 4 is fixed to the main support pipe 1. At the front end, the front support rod 4 and the main support pipe 1 are perpendicular to each other. Along the front support rod 4, four partition support rods 5 are fixed at equal intervals, and the front support rod 4 and the partition support rods 5 are perpendicular to each other. A roller 6 with a diameter of 50mm is rotatably connected between two adjacent partition support rods 5. A lower support pipe 8 is fixed longitudinally on the flange 2. The upper end of the lower support pipe 8 has an internal thread structure. Both ends of the connecting pipe 9 have internal thread structures. The upper end of the lower support pipe 8 is threaded to the lower end of the connecting pipe 9 through a screw 10. The lower end of the upper support pipe 7 has an internal thread structure. The lower end of the upper support pipe 7 is threaded to the upper end of the connecting pipe 9 through a screw 10.

[0019] The drainage of cemented pillars in a copper mine was implemented using the goaf drainage pipe lowering device of this embodiment. The main support pipe 1 consists of two φ100mm seamless steel pipes with a length of 4000mm. The flange 2 has a specification of 100mm×160mm. The reinforcing wing 3 has a specification of 40mm width×1000mm length. The front support rod 4 has a length of 1200mm. The upper support pipe 7 and the lower support pipe 8 are made of φ50mm seamless steel pipes. Observation showed that the drainage pipe 11 was lowered smoothly without friction with the goaf wall, the burlap wrapping layer was intact, and there was no leakage of cemented tailings.

[0020] The working principle and process of this utility model are as follows: The device is installed in a suitable location in the goaf area, ensuring that the idler roller 6 is a certain distance away from the goaf wall. The upper support pipe 7 and lower support pipe 8 are installed and screwed on, extending a certain distance so that the upper end of the upper support pipe 7 is tightly pressed against the top of the channel, thus fixing the device. The drainage pipe 11 is placed on the idler roller 6 and lowered. During the lowering process, the drainage pipe 11 does not rub against the goaf wall, ensuring the integrity of the burlap layer. Simultaneously, the lowering of the drainage pipe is simpler and lighter. After use, the upper support pipe 7 and lower support pipe 8 are screwed on and removed, and the device can then be reused.

Claims

1. A gob drainage pipe lowering device, comprising a main support pipe (1), a flange plate (2), a reinforcing fin (3), a front support rod (4), a partition support rod (5), a carrier roller (6), an upper support pipe (7), a lower support pipe (8), a connecting pipe (9), a screw rod (10), characterized in that Along the length direction of the main support pipe (1), a plurality of flanges (2) are fixed outside the main support pipe (1) at equal intervals, and the two ends of the main support pipe (1) are provided with flanges (2), and a plurality of reinforcing fins (3) are fixed outside the main support pipe (1) at equal intervals along the circumferential direction of the main support pipe (1) between adjacent flanges (2), the two ends of the reinforcing fin (3) are fixed with the corresponding flange (2), the front support rod (4) is fixed on the front end of the main support pipe (1), and the front support rod (4) and the main support pipe (1) are perpendicular to each other, a plurality of partition support rods (5) are fixed at equal intervals along the rod body of the front support rod (4), and the front support rod (4) and the partition support rod (5) are perpendicular to each other, and the two ends of the connecting pipe (9) are internally threaded structures, the upper end of the lower support pipe (8) is internally threaded structure, the upper end of the lower support pipe (8) is connected with the lower end of the connecting pipe (9) through the screw rod (10), the lower end of the upper support pipe (7) is internally threaded structure, and the lower end of the upper support pipe (7) is connected with the upper end of the connecting pipe (9) through the screw rod (10).

2. The gob conduit lowering device of claim 1, wherein The number of reinforcing fins (3) between adjacent flanges (2) is 4.

3. The gob conduit lowering device of claim 1, wherein The distance between adjacent flanges (2) is 1 meter.

4. The gob conduit lowering apparatus of claim 1, wherein The partition support rod (5) has 4, and a roller (6) is arranged between the two adjacent partition support rods (5).

5. The gob conduit lowering device according to claim 1 or 4, characterized in that The diameter of the roller (6) is 5 cm.

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