Underground coal bunker dredging device

Abstract

The utility model discloses an underground coal bunker dredging device which comprises an installation frame, the installation frame comprises two sets of installation plates arranged oppositely, and two sets of telescopic assemblies are vertically fixed between the two installation plates; the pneumatic propelling assembly is mounted between the two mounting plates; the pneumatic drilling assembly is mounted at the end part of the pneumatic propelling assembly; the air gun is installed at the end, away from the pneumatic propelling assembly, of the drilling assembly, and the air gun and the pneumatic drilling assembly are coaxially arranged; and the gas distribution system comprises a gas filtering assembly, the gas filtering assembly communicates with the pneumatic propelling assembly, the pneumatic drilling assembly and the air gun through pressure pipes correspondingly, electromagnetic control valves are installed on the pressure pipes correspondingly, and the electromagnetic control valves are electrically connected with the controller. The device can be automatically or manually operated, an operator can be far away from a coal bunker to vibrate a blocked position at multiple points for multiple times, and the device is convenient to use, safe and reliable.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal production technical field especially relates to a downhole coal bunker dredging device. BACKGROUND

[0002] The coal bunker is the important pivot of the contact of each production link and the transportation link in the coal mine production, the most prone problem in the downhole coal bunker is the adhesion problem of the bunker wall, mainly because the water, gangue and other sundries are mixed in the coal inevitably, the mixing of the water and the coal slime can easily cause the adhesion of the coal powder on the bunker wall, and the adhesion coal with the thickness of several meters can be accumulated on the coal bunker wall under the day after day. Because the coal slime, the gangue and the water are mixed and adhered, the coal bunker blockage phenomenon appears when the coal feeder is started again after the shutdown for several hours, which seriously affects the normal operation of the coal mine. Therefore, in order to ensure the normal operation of the coal bunker production and transportation link, the downhole coal bunker is dredged quickly and safely when the coal bunker is blocked.

[0003] Because the downhole coal bunker cannot see the internal structure when the coal bunker is blocked, the staff can only blindly operate, such as blasting, heavy hammer knocking the discharge port or high-pressure water gun blind flushing, the efficiency is extremely low, and there is a great safety hazard.

[0004] Based on the above problems, the utility model provides a downhole coal bunker dredging device. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a downhole coal bunker dredging device to solve the problems in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following scheme: the utility model provides a downhole coal bunker dredging device, which comprises:

[0007] The mounting frame comprises two groups of mounting plates arranged opposite to each other, and two groups of telescopic components are vertically fixed between the two mounting plates;

[0008] The pneumatic propulsion assembly is installed between the two mounting plates, and the output end of the pneumatic propulsion assembly penetrates through the mounting plate and is fixed between the mounting plate;

[0009] The pneumatic drilling assembly is installed at the end of the pneumatic propulsion assembly;

[0010] The air gun is installed at the end of the drilling assembly away from the pneumatic propulsion assembly, and the air gun and the pneumatic drilling assembly are coaxially arranged;

[0011] The gas distribution system comprises a gas filtering assembly, which is communicated with the pneumatic propelling assembly, the pneumatic drilling assembly and the air gun through pressure pipes respectively, and electromagnetic control valves are respectively arranged on the pressure pipes and electrically connected with a controller.

[0012] According to the underground coal bunker dredging device, the telescopic assembly comprises three-stage hollow lifting support rods, two ends of the three-stage hollow lifting support rods are fixed with two groups of mounting plates respectively, top ends of the two groups of three-stage hollow lifting support rods are communicated with the pneumatic drilling assembly and the air gun respectively, and the three-stage hollow lifting support rods are communicated with pressure pipes.

[0013] According to the underground coal bunker dredging device, the pneumatic propelling assembly comprises three-stage air cylinders, two ends of the three-stage air cylinders are fixed with two mounting plates respectively, and the drilling assembly is arranged at top ends of the three-stage air cylinders, wherein one group of pressure pipes is communicated with the three-stage air cylinders.

[0014] According to the underground coal bunker dredging device, the pneumatic drilling assembly comprises a pneumatic motor, the pneumatic motor is arranged at the top end of the three-stage air cylinder, a hollow drill rod is arranged on the pneumatic motor, a drill bit is arranged at the other end of the hollow drill rod, the air gun is arranged at one end of the hollow drill rod close to the drill bit, and the pneumatic motor and the hollow drill rod are communicated with the three-stage hollow lifting support rods through pipelines respectively.

[0015] According to the underground coal bunker dredging device, the gas filtering assembly comprises a filter, a conveying pipe is arranged at an output end of the filter, the conveying pipe is communicated with the pressure pipe, and a booster pump is arranged on the conveying pipe.

[0016] According to the underground coal bunker dredging device, a pressure sensor is arranged in the hollow drill rod.

[0017] The utility model discloses the following technical effects:

[0018] When the coal bunker is blocked, the coal feeder below the coal bunker is started, the gas distribution assembly injects high-pressure gas into the air gun, instantaneously releases and produces great vibration, the coal slime in the coal bunker is loosened, the blocking object falls into the coal feeder at the bottom of the coal bunker under the action of gravity, the coal bunker is dredged, whether the coal feeder discharges coal is observed, if discharges coal, then dredging is completed, if does not discharge coal, the gas distribution system supplies gas to the pneumatic propelling assembly and the pneumatic drilling assembly through the pressure pipe, the pneumatic propelling assembly and the drilling assembly adopt the rotary feeding mode to make the pneumatic propelling assembly ascend to a certain height, the air gun repeats the gas charging and discharging operation, and the operation is repeated until the pneumatic propelling assembly ascends to the maximum height, the blocking point is dredged, and the coal feeder discharges coal.

[0019] The utility model discloses can be automatic or manual operation, and the operator can be far away from the coal bunker, and the coal bunker part is vibrated repeatedly and in many points, convenient to use, safe and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will be briefly introduced the drawing needed to be used in the embodiment, obviously, the drawing in the following description only is some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying creative labor, still can obtain other drawings according to these drawings.

[0021] Fig. 1 It is the structural schematic diagram of the underground coal bunker dredging device of the utility model;

[0022] Fig. 2 It is the schematic diagram of the gas distribution system of the utility model.

[0023] Among them, 1, mounting plate;2, air gun;3, electromagnetic control valve;4, controller;5, three-stage hollow lifting support rod;6, three-stage cylinder;7, pneumatic motor;8, hollow drill rod;9, drill bit;10, filter;11, booster pump. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be clearly and completely described in the following with the drawings in the embodiments of the utility model, obviously, the described embodiment only is a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by ordinary skilled person in the art without making creative labor belong to the scope of the utility model protection.

[0025] In order to make the above purpose, feature and advantage of the utility model more obvious and easy to understand, the following will be further detailed to the utility model with the drawings and specific embodiment.

[0026] REFERENCE Figs. 1-2 The utility model provides a kind of underground coal bunker dredging device, comprising:

[0027] Mounting frame, the mounting frame includes two groups of mounting plate 1 being oppositely arranged, two the mounting plate 1 between vertically fixed two groups of telescopic components;

[0028] Pneumatic propulsion assembly, the pneumatic propulsion assembly is installed between two the mounting plate 1, and the output end of the pneumatic propulsion assembly passes through the mounting plate 1 and is fixed between the mounting plate 1;

[0029] Pneumatic drilling assembly, the pneumatic drilling assembly is installed at the end of the pneumatic propulsion assembly;

[0030] an air gun 2 mounted at the end of the drilling assembly away from the pneumatic propulsion assembly, and coaxially arranged between the air gun 2 and the pneumatic drilling assembly;

[0031] a gas distribution system comprising a gas filtering assembly in communication with the pneumatic propulsion assembly, the pneumatic drilling assembly and the air gun 2 through pressure pipes respectively, and electromagnetic control valves 3 mounted on the pressure pipes respectively, and electrically connected with a controller 4.

[0032] When the coal bunker is blocked, the coal feeder below the coal bunker is started, the gas distribution assembly injects high-pressure gas into the air gun 2, instantaneously releases a huge vibration, loosens the coal slurry in the coal bunker, and the blockage falls into the coal feeder at the bottom of the coal bunker under the action of gravity, so that the coal bunker is dredged, whether the coal feeder discharges coal is observed, if the coal is discharged, the dredging is completed, if the coal is not discharged, the gas distribution system supplies gas to the pneumatic propulsion assembly and the pneumatic drilling assembly, the pneumatic propulsion assembly and the drilling assembly adopt a rotary feeding mode to make the pneumatic propulsion assembly rise to a certain height, the air gun 2 is repeatedly charged and discharged, and the operation is repeated until the pneumatic propulsion assembly rises to the maximum height, the blockage point is dredged, and the coal feeder discharges coal.

[0033] The utility model can be automatically or manually operated, the operator can be away from the coal bunker, the blocked part of the coal bunker is vibrated multiple times and at multiple points, and the utility model is convenient to use and safe and reliable.

[0034] Further optimization scheme, the telescopic assembly includes three hollow lifting support rods 5, two ends of the three hollow lifting support rods 5 are fixed with two groups of mounting plates 1 respectively, and the top ends of the two groups of three hollow lifting support rods 5 are in communication with the pneumatic drilling assembly and the air gun 2 respectively, and the three hollow lifting support rods 5 are in communication with pressure pipes.

[0035] Further optimization scheme, the pneumatic propulsion assembly includes three cylinders 6, two ends of the three cylinders 6 are fixed with two mounting plates 1 respectively, and the drilling assembly is installed at the top end of the three cylinders 6, and one group of pressure pipes is in communication with the three cylinders 6.

[0036] Further optimization scheme, the pneumatic drilling assembly includes a pneumatic motor 7, the pneumatic motor 7 is installed at the top end of the three cylinders 6, a hollow drill rod 8 is installed on the pneumatic motor 7, a drill bit 9 is installed at the other end of the hollow drill rod 8, the air gun 2 is arranged at one end of the hollow drill rod 8 close to the drill bit 9, and the pneumatic motor 7 and the hollow drill rod 8 are in communication with the three hollow lifting support rods 5 through pipelines respectively.

[0037] Further optimization scheme, the gas filter assembly includes filter 10, the filter 10 output end is equipped with the conveying pipe, the conveying pipe is communicated with the pressure pipe, the conveying pipe is equipped with booster pump 11 on.

[0038] Further optimization scheme, the hollow drill rod 8 is equipped with pressure sensor.

[0039] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the present application.

[0040] The above-described embodiments are only preferred modes of the present application, and do not limit the scope of the present application, and various modifications and improvements to the technical solutions of the present application made by those skilled in the art without departing from the design spirit of the present application shall fall within the protection scope determined by the claims of the present application.

Claims

1. A downhole coal bin clearing device, characterized in that, The utility model relates to a kind of air gun drilling device, including: Mounting frame, the mounting frame includes two groups of installation plate (1) being arranged opposite, two the installation plate (1) between vertically fixed with two groups of telescopic components; Pneumatic propulsion assembly, the pneumatic propulsion assembly is installed between two the installation plate (1), and the output end of the pneumatic propulsion assembly passes through the installation plate (1) and is fixed between the installation plate (1); Pneumatic drilling assembly, the pneumatic drilling assembly is installed at the end of the pneumatic propulsion assembly; Air gun (2), the air gun (2) is installed at the end of the drilling assembly away from the pneumatic propulsion assembly, and the air gun (2) is coaxially arranged between the pneumatic drilling assembly; Gas distribution system, the gas distribution system includes gas filter assembly, the gas filter assembly is communicated with the pneumatic propulsion assembly, the pneumatic drilling assembly, the air gun (2) respectively by pressure pipe, electromagnetic control valve (3) is respectively installed on the pressure pipe, and the electromagnetic control valve (3) is electrically connected with controller (4).

2. A downhole coal bin unblocking device according to claim 1, characterised in that: The telescopic component includes three-stage hollow lifting support rod (5), two ends of the three-stage hollow lifting support rod (5) are fixed with two groups of the installation plate (1) respectively, the top end of two groups of the three-stage hollow lifting support rod (5) is communicated with the pneumatic drilling assembly, the air gun (2) respectively, and the three-stage hollow lifting support rod (5) is communicated with pressure pipe.

3. A downhole coal bin clearing device according to claim 2, characterised in that: The pneumatic propulsion assembly includes three-stage cylinder (6), two ends of the three-stage cylinder (6) are fixed with two the installation plate (1) respectively, and the drilling assembly is installed at the top end of the three-stage cylinder (6), wherein one group of pressure pipe is communicated with the three-stage cylinder (6).

4. A downhole coal bin clearing device according to claim 3, characterised in that: The pneumatic drilling assembly includes pneumatic motor (7), the pneumatic motor (7) is installed at the top end of the three-stage cylinder (6), hollow drill rod (8) is installed on the pneumatic motor (7), drill bit (9) is installed at the other end of the hollow drill rod (8), the air gun (2) is arranged at the end of the hollow drill rod (8) close to the drill bit (9), and the pneumatic motor (7) and the hollow drill rod (8) are communicated with the three-stage hollow lifting support rod (5) respectively by pipeline.

5. A downhole coal bunker unblocking device according to claim 1, characterised in that: The gas filter assembly includes filter (10), conveying pipe is installed at the output end of the filter (10), conveying pipe is communicated with the pressure pipe, and booster pump (11) is installed on the conveying pipe.

6. A downhole coal bin clearing device according to claim 4, characterised in that: Pressure sensor is installed in the hollow drill rod (8).

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