Fully mechanized coal mining face corner gas treatment device

Abstract

The utility model discloses a fully mechanized coal mining face corner gas treatment device which comprises a horizontally-arranged pressure ventilation pipe, the tail end of the pressure ventilation pipe is connected with a plurality of pressure ventilation branch pipes, the tail ends of the pressure ventilation branch pipes are connected with an annular pipe, the annular pipe is connected with a plurality of dilution pipes in a downward inclined mode in the circumferential direction, and the dilution pipes are connected with a gas inlet pipe and a gas outlet pipe in a downward inclined mode. A gas collecting hood is arranged at the corner of the working face, a box-shaped collector is connected outside the gas collecting hood, and the collector is outwards communicated with a fluid director; the utility model has the beneficial effects that the structure is simple, the gas collecting hood is designed at the corner position of the working face to collect and seal corner gas and prevent leakage, and meanwhile, the gas diluting device with an airflow vortex effect is designed at the corner position to fully dilute high-concentration gas at the corner and then exhaust the gas, so that the working face is protected from leakage. Dangerous accidents can occur even if a small amount of leakage exists, double safety protection is achieved, and the device is worthy of wide-range application and popularization.

Description

TECHNICAL FIELD

[0001] The utility model relates to a gas treatment equipment technical field especially relates to a fully mechanized coal mining face corner gas treatment device. BACKGROUND

[0002] The gas accumulation in the upper corner of the fully mechanized coal mining face refers to the gas concentration in the corner of the coal mining face, the upper roadway corner and other positions is higher than other positions, reaches the explosion danger level, this is due to the poor ventilation of the area causes, leads to the gas cannot effectively flow and discharge, this phenomenon seriously endangers the life safety of the miner and the production economic benefit of the coal mine, in the prior art, usually install the suction pipe in the corner position and carry out suction, but the suction range is small, and the corner position does not have gas sealing protection facilities, still exists the risk of gas leakage, for this reason, the utility model designs a new fully mechanized coal mining face corner gas treatment device. UTILITY MODEL CONTENT

[0003] The utility model discloses a fully mechanized coal mining face corner gas treatment device, to solve the technical problem of the corner gas extraction device in the prior art small suction range, there is the risk of gas leakage.

[0004] The utility model discloses a fully mechanized coal mining face corner gas treatment device, to solve the technical problem of the corner gas extraction device in the prior art small suction range, there is the risk of gas leakage.

[0005] Further, the seal groove is arranged on the outer edge of the gas collecting hood, and the sealing glue is arranged in the seal groove.

[0006] Further, the suction hole is communicated with the dilution cavity and the collector.

[0007] Further, the flow guide is made of keel wind tube.

[0008] Further, the axis of the dilution pipe and the axis of the ring pipe do not intersect.

[0009] Further, the pressure branch pipe is tangent to the ring pipe.

[0010] The utility model discloses beneficial effect: the utility model simple structure is designed in the corner position of working face angle, and the gas cover is designed to the corner gas collection and seal, prevents the occurrence leakage, and simultaneously the gas dilution device with the airflow vortex effect is designed in the corner position, and the high concentration gas of corner is diluted fully first and then carries out the air extraction, and even if there is a small amount of leakage, dangerous accident will also occur, realizes double safety protection, and it is worth wide range of use. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the whole structure schematic diagram of the utility model;

[0012] Figure 2 It is Figure 1 A part enlarged structure schematic diagram of

[0013] In the drawing, the compressed air pipe 1, the compressed air branch pipe 2, the ring pipe 3, the dilution pipe 4, the gas collecting cover 5, the suction hole 6, the collector 7, the flow guide 8, the sealing glue 9, the dilution cavity 11. CONCRETE EMBODIMENT

[0014] As Figure 1 And Figure 2 Shown, a kind of fully mechanized coal mining face corner gas treatment device, it includes the compressed air pipe 1 of horizontal arrangement, the compressed air pipe 1 is connected with air blower, several compressed air branch pipes 2 are connected in the end of the compressed air pipe 1, ring pipe 3 is connected in the end of the compressed air branch pipe 2, several dilution pipes 4 are connected with the inclination downwards along the circumferential direction on the ring pipe 3, gas collecting cover 5 is arranged at the corner of working face, the gas collecting cover 5 is connected with roadway wall to form gas dilution cavity 11, the ring pipe 3, the dilution pipe 4 are located in the gas dilution cavity 11, box-shaped collector 7 is connected outside the gas collecting cover 5, the collector 7 is connected with flow guide 8 outwardly, the flow guide 8 is connected with air induction fan;In order to improve the sealing, sealing groove is arranged in the outer edge of the gas collecting cover 5, sealing glue 9 is arranged in the sealing groove;Several suction holes 6 are formed in the gas collecting cover 5, the suction hole 6 is connected with the dilution cavity 11, the collector 7;The flow guide 8 is made of keel wind tube, and the keel wind tube has telescopic property, facilitating installation and movement.

[0015] As Figure 2 Shown, the axis of the dilution pipe 4 does not intersect with the axis of the ring pipe 3, so that dilution pipe 4 is distributed in the circumferential direction of ring pipe 3 in the form of vortex, improve the gas dilution effect, and the vortex direction is conducive to the suction of gas, the compressed air branch pipe 2 is tangent to the ring pipe 3, to improve the power of compressed air branch pipe 2.

[0016] Specific work, as Figure 1 And Figure 2As shown, air is discharged into the dilution cavity 11 in sequence through the compressed air pipe 1, the compressed air branch pipe 2, the ring pipe 3 and the dilution pipe 4. Due to the vortex effect of the dilution pipe 4, the gas in the corner is fully diluted. The diluted gas is discharged in sequence through the suction hole 6, the collector 7 and the flow guide 8.

[0017] The above is only a preferred example of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A fully mechanized coal mining face corner gas treatment device, characterized in that: It includes horizontally arranged pressure air pipe (1) which is connected with air blower, several pressure air branch pipes (2) are connected at the end of pressure air pipe (1), ring pipe (3) is connected at the end of pressure air branch pipe (2), several dilution pipes (4) are connected on ring pipe (3) in circumferential direction and are inclined downward, gas collecting hood (5) is arranged at working face corner, gas collecting hood (5) is connected with roadway wall to form gas dilution cavity (11), ring pipe (3) and dilution pipe (4) are located in gas dilution cavity (11), box-shaped collector (7) is connected outside gas collecting hood (5), collector (7) is connected with flow guide (8) in communication, flow guide (8) is connected with air blower.

2. The gas treatment device for the fully mechanized coal mining face corner according to claim 1, characterized in that: Sealing groove is arranged at the outer edge of gas collecting hood (5), sealing glue (9) is arranged in sealing groove.

3. The gas treatment device for the fully mechanized coal mining face corner according to claim 1, characterized in that: Several suction holes (6) are opened on gas collecting hood (5), suction holes (6) are in communication with dilution cavity (11) and collector (7).

4. The fully-mechanized coal mining face corner gas treatment device according to claim 1, characterized in that: Flow guide (8) is made of keel air duct.

5. The fully-mechanized coal mining face corner gas treatment device according to claim 1, characterized in that: The axis of dilution pipe (4) does not intersect with the axis of ring pipe (3).

6. The fully mechanized coal mining face corner gas treatment device according to claim 5, characterized in that: Pressure air branch pipe (2) is tangent to ring pipe (3).

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