CN210977575U

CN210977575U - Coal mine coal face upper corner gas extraction device

Info

Publication number: CN210977575U
Application number: CN201921184118.9U
Authority: CN
Inventors: 石兴龙; 邱晓念; 王御军
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-24
Filing date: 2019-07-24
Publication date: 2020-07-10
Anticipated expiration: 2029-07-24

Abstract

The utility model belongs to the coal mining field especially relates to a coal mine coal face upper corner gas takes out and adopts device, include the base, be located the motor on base upper portion, still include: the air pump comprises an air pumping cylinder, an exhaust pipe, a bidirectional air suction mechanism, a transmission mechanism and a mounting plate. Two-way suction mechanism rotates and installs in the suction tube, including the first axis of rotation of initiative air discharge fan, driven air discharge fan and fixed connection initiative air discharge fan and the second axis of rotation of driven air discharge fan of fixed connection, the base below is equipped with the wheel, realizes that the device is portable. The exhaust pipe is rotatably installed and used for different working surfaces. And a bidirectional suction device is adopted to improve the extraction efficiency. The utility model discloses simple structure, the aspect is nimble, adopts a plurality of functions of motor drive, practices thrift the cost of manufacture.

Description

Coal mine coal face upper corner gas extraction device

Technical Field

The invention relates to the field of coal mining, in particular to a gas extraction device for an upper corner of a coal mining working face of a coal mine.

Background

Colliery is gas drainage device in pit is used for extracting colliery gas in the pit when the mining, avoids causing gas explosion, causes bodily injury to constructor, and along with the development of science and technology, people's mining speed is faster and faster, and this has just had higher requirement to colliery gas drainage device in the pit.

The coal mining working face is a first production site of coal, has the characteristics of narrow operation space, more mechanical equipment, poor visual environment and high temperature, has frequent safety accidents, seriously influences the safety management work of the whole coal mine, and is a key area in the safety management work of the coal mine. The upper corner is generally used in mining terminology and refers to the return air side of the coal face, and is the triangular zone near the upper wall of the return air roadway and the edge of the gob. The ventilation of the area is poor, and the gas released by intersection of the goaf and the mining face is easy to accumulate, so that the gas concentration is higher.

Chinese patent application No. CN201810976317.7 provides a coal mine coal face upper corner gas drainage device includes the casing, be equipped with first cavity and second cavity in the casing, be equipped with the air discharge fan in the first cavity, the coaxial fixedly connected with transmission shaft of another output of biax motor, the casing is kept away from and is equipped with two annular vents on first opening and the second open-ended lateral wall, water pipe one end and sprinkler body fixed connection, and water pipe other end fixedly connected with water pipe head, fixedly connected with water pump on the water pipe, water pump and casing fixed connection, and the coaxial fixed connection of water pump input and transmission shaft. Has the advantages that: the device can extract gas at the upper corner of a working face, can convey fresh air into a mine hole, can spray water mist to increase humidity and reduce the danger of gas explosion, but the exhaust pipe of the device cannot adjust the height, cannot operate according to different working faces, is difficult to move in a working environment with complicated ground shapes such as a mine and is inconvenient for equipment transfer. The extraction efficiency is greatly reduced due to the work of one exhaust fan.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem of too high gas concentration at the upper corner of the coal face.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a colliery coal face upper corner gas drainage device, includes the base, is located the motor on base upper portion, its characterized in that still includes: the air pump comprises an air pumping cylinder, an exhaust pipe, a bidirectional air suction mechanism, a transmission mechanism and a mounting plate.

The air pumping cylinder is arranged on the upper part of the base and is positioned on one side of the motor, and comprises a first outer cylinder, a second outer cylinder, an end cover arranged at the opening end of the outer cylinder, a cross square frame fixedly arranged in the outer cylinder and a support frame fixedly arranged on the base and matched with the outer cylinder;

the exhaust pipe is rotatably arranged between the first outer barrel and the second outer barrel and comprises a T-shaped pipeline and a gas contact barrel arranged at the top of the T-shaped pipeline;

the air suction mechanism is rotatably arranged on the cross square frame and comprises a driving exhaust fan, a driven exhaust fan, a first rotating shaft fixedly connected with the driving exhaust fan and a second rotating shaft fixedly connected with the driven exhaust fan;

the transmission mechanism is arranged behind the air extracting cylinder and comprises a first shaft, a second shaft and a third shaft, the first shaft is meshed with the motor through a bevel gear, the output end of the first shaft is meshed with the third shaft through the bevel gear and is rotationally connected with the third shaft, the output end of the third shaft is meshed with the second shaft through the bevel gear and is rotationally connected with the second rotating shaft through the bevel gear;

the mounting panel is located the base top and the suction cylinder rear, including first baffle and second baffle, first baffle and second baffle all seted up with the hole of primary shaft, secondary shaft and third axle looks adaptation.

The utility model discloses principle and effect lie in: use the technical scheme of the utility model, take out gas through two-way suction mechanism under the drive of motor, solved the higher problem of coal face upper corner gas concentration.

1. The T-shaped exhaust pipeline is rotatably connected between the air pumping cylinders, the height of the gas contact cylinder can be adjusted, and the problem that the gas contact cylinder cannot be operated on different working surfaces in the prior art is solved.

2. Set up the wheel and the side sets up the pull rod with base below, solved the unmovable problem of equipment among the prior art.

3. Through setting up drive mechanism, regard as the drive with a motor, drive initiative air discharge fan and driven air discharge fan work simultaneously, improve work efficiency, the energy saving.

4. Compared with the prior art, the device realizes the operation of different working faces, solves the problem that the equipment is not movable in the prior art, and simultaneously increases the working efficiency by adopting the bidirectional air suction mechanism.

Furthermore, two grooves are formed in the bottom of the base, wheels matched with the grooves are arranged in the grooves, and a pull rod connected with the base in a rotating mode is arranged behind the grooves. The wheels and the pull rod are arranged at the bottom of the device, so that the device can move on complex terrains, and the transportation of the device is facilitated.

Furthermore, the end cover is provided with an exhaust hole for outputting gas. The exhaust hole can be externally connected with a pipeline to discharge gas out of the mine hole.

Further, the blast pipe rotate install in between first urceolus and the second urceolus, set up the trompil on the gas contact section of thick bamboo. The contact area is increased by opening the holes, and the extraction efficiency is improved.

Further, the first rotating shaft is fixedly connected with the motor spindle. The motor is used as the only driving source, so that resources are saved.

Drawings

FIG. 1 is a schematic structural view of a gas extraction device at an upper corner of a coal mining working face of a coal mine;

FIG. 2 is a side view of a gas extraction device at an upper corner of a coal mining working face of a coal mine;

FIG. 3 is a schematic diagram of a structure of an air extraction cylinder in a gas extraction device at an upper corner of a coal face of a coal mine;

FIG. 4 is a rear perspective view of a gas extraction device at a corner of a coal face of a coal mine;

FIG. 5 is a schematic structural view of a driven air suction mechanism in a gas suction device at an upper corner of a coal face of a coal mine;

Detailed Description

Examples

The present invention will be described in further detail with reference to the following embodiments.

The reference numerals in the drawings in the specification include a base 1, a groove 11, wheels 12, a pull rod 13, a motor 2, an air suction cylinder 3, a first outer cylinder 31, a second outer cylinder 32, an end cover 33, a cross square frame 34, an air outlet 331, a T-shaped pipeline 41, a gas contact cylinder 42, a bidirectional air suction mechanism 5, a driving exhaust fan 51, a driven exhaust fan 52, a first rotating shaft 53, a second rotating shaft 54, a first shaft 61, a second shaft 62, a third shaft 63, a first baffle 71 and a second baffle 72.

The gas extraction device comprises a base 1 in an L shape, a driving motor 2 is fixedly mounted above the left side of the base, a bidirectional air suction mechanism 5 is arranged on the right side of the motor, the structure schematic diagram of the air suction mechanism is shown in fig. 5 and comprises a rotating shaft and an exhaust fan fixedly connected with the rotating shaft, and the left and right air suction mechanisms are of the same structure.

As shown in fig. 3, the air suction cylinder 3 is provided outside the two-way air suction mechanism, a cross-shaped square frame 34 is fixedly provided inside the air suction cylinder for fixing the rotating shaft, and a support frame 35 adapted to the outer cylinder is provided below the outer cylinder for fixing the outer cylinder. The extraction cylinder 3 comprises a first outer cylinder 31 and a second outer cylinder 32 fixed to a first rotation axis 53 on the left and a second rotation axis 54 on the right as seen in fig. 1, respectively. An end cover 33 is arranged on the left side of the first outer cylinder 31 and the right side of the second outer cylinder 32, and an exhaust hole 331 is arranged on the end cover 33 and used for connecting an external pipeline to discharge extracted gas. The T-shaped pipeline 41 is rotatably connected between the first outer cylinder 31 and the second outer cylinder 32, the gas contact cylinder 42 is arranged at the top of the T-shaped pipeline 41, the surface of the gas contact cylinder 42 is provided with holes to increase the contact area, and the extraction efficiency is increased.

As shown in fig. 2, two grooves 11 are formed in the lower part of the base 1, wheels 12 matched with the grooves 11 are arranged in the grooves 11, and the device is movable through a pull rod 13 rotatably connected with the base 1.

The working process is as follows: the device is manually moved to a working place through a pull rod 12 and a wheel 12 below a base, a gas contact cylinder 42 on an exhaust pipe 4 is arranged on a gas gathering place at the upper corner of a working face, a power supply is turned on, a driving shaft of a motor 2 rotates to drive a first rotating shaft 53 to rotate, the first rotating shaft drives a driving exhaust fan 51 to rotate and suck gas, meanwhile, a first shaft 61 drives a second shaft 62, the second shaft 62 drives a third shaft 63, the third shaft 63 drives a second rotating shaft 54 to rotate, a driven exhaust fan 52 works simultaneously, the gas enters an air extraction cylinder 3 through a T-shaped pipeline 41, and the gas can be exhausted out of a mine hole through a connecting pipeline at a hole 331 on an end cover 33 on the side face of the.

In the present invention, it is to be understood that: the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in an orientation or positional relationship indicated in the drawings for convenience and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The above, only be the utility model discloses the embodiment of preferred, nevertheless the utility model discloses a protection scope is not limited to this, and any technical personnel who is familiar with this technical field are in the utility model discloses a change or replacement that can easily think under the technical suggestion, if make solution form mutually independent solution curtain with order curtain and shaping subassembly surface in order through feed mechanism, finalize the design through different warm areas, make its reutilization's design concept with polymer melting in addition, all should cover within the protection scope of the utility model. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a colliery coal face upper corner gas drainage device, includes base (1), is located motor (2) on base (1) upper portion, its characterized in that still includes: the air suction device comprises an air suction cylinder (3), an exhaust pipe (4), a bidirectional air suction mechanism (5), a transmission mechanism (6) and a mounting plate (7);

the air pumping cylinder (3) is arranged on the upper part of the base (1) and is positioned on one side of the motor (2), and comprises a first outer cylinder (31), a second outer cylinder (32), an end cover (33) arranged at the opening end of the outer cylinder, a cross square frame (34) fixedly arranged in the outer cylinder and a support frame (35) fixedly arranged on the base (1) and matched with the outer cylinder;

the exhaust pipe (4) is rotatably arranged on one side of the air pumping cylinder (3) and comprises a T-shaped pipeline (41) and a gas contact cylinder (42) arranged at the top of the T-shaped pipeline (41);

the bidirectional air suction mechanism (5) is rotatably arranged on the cross square frame (34) and comprises a driving exhaust fan (51), a driven exhaust fan (52), a first rotating shaft (53) fixedly connected with the driving exhaust fan (51) and a second rotating shaft (54) fixedly connected with the driven exhaust fan (52);

the transmission mechanism (6) is arranged behind the air extracting cylinder (3) and comprises a first shaft (61), a second shaft (62) and a third shaft (63), the first shaft (61) is meshed with a main shaft of the motor (2) through a bevel gear, the output end of the first shaft (61) is meshed with the third shaft (63) through the bevel gear, the output end of the third shaft (63) is meshed with the second shaft (62) through the bevel gear, and the output end of the second shaft (62) is meshed with the second rotating shaft (54) through the bevel gear;

the mounting plate (7) is located base (1) top and aspirator (3) rear, including first baffle (71) and second baffle (72), all seted up the messenger on first baffle (71) and second baffle (72) first axle (61), second axle (62) and third axle (63) pass the hole.

2. The gas extraction device for the upper corner of the coal mining working face of the coal mine according to claim 1, characterized in that two grooves (11) are formed in the bottom of the base (1), wheels (12) matched with the grooves are arranged in the grooves (11), and a pull rod (13) rotatably connected with the base (1) is arranged behind the base (1).

3. The coal mine coal face upper corner gas extraction device according to claim 1, wherein the end cover (33) is provided with an exhaust hole (331) for gas output.

4. The coal mine coal face upper corner gas extraction device according to claim 1, characterized in that the exhaust pipe (4) is rotatably mounted between the first outer cylinder (31) and the second outer cylinder (32), and honeycomb holes are formed in the gas contact cylinder (42).

5. The gas extraction device for the upper corner of the coal mining working face of the coal mine according to claim 1, characterized in that the first rotating shaft (53) is fixedly connected with a main shaft of the motor (2).