CN219529068U - Colliery operation ventilation unit - Google Patents

Abstract

The utility model discloses a ventilation device for coal mine operation, which comprises a ventilation pipeline, a hanging bracket, a ventilation fan and a high-efficiency dust exhausting device. According to the utility model, the high-efficiency dust discharging device is arranged on the ventilating duct, when the airflow in the ventilating duct passes through the settling chamber, the flow speed is reduced, so that mineral dust is separated from the airflow under the action of gravity and falls down into the dust discharging hopper, the mineral dust particles enter the dust discharging hopper and are poured into the dust discharging duct, and the dust-containing airflow moves along the dust discharging duct and finally is discharged outwards.

Description

Colliery operation ventilation unit

Technical Field

The utility model relates to the field of underground ventilation devices, in particular to a ventilation device for coal mine operation.

Background

The mining method is characterized in that a human is used for mining coal resources in a mining area rich in coal, the mining area is generally divided into an underground coal mine and an open pit coal mine, when a coal layer is far away from the ground surface, coal is generally selected to be mined into an underground mining roadway, and in the mining production process, ventilation pipelines are required to be arranged under the mine so as to dilute various toxic and harmful gases, gas and mine dust and discharge the toxic and harmful gases, gas and mine dust out of the ground so as to create good underground operation conditions.

The prior patent application number is: CN201922317397.8 is a colliery operation ventilation unit, this colliery operation ventilation unit filters the wind channel through setting up three-layer detachable filter plate, can make the device carry out abundant filtration to the air that the exhaust contains the dust, and then effectively reduce the particulate contamination of exhaust air, and on the other hand filter plate is pegged graft in the inside of mounting groove and breach can make things convenient for the staff to change and wash the filter plate, further improves filtration efficiency.

The existing ventilation device for coal mine operation generally adopts negative pressure ventilation to dilute various toxic and harmful gases, gas and dust and discharge the same to the ground, the ventilation device for coal mine operation is described in the above patent, a dust filtering structure is mounted on the ventilation device for coal mine operation, the dust in air flow can be separated, and air pollution is reduced, but the ventilation device in the above patent separates the dust into cloth bags through filter screens to collect the dust, a large amount of dust can be generated in the coal mine operation, the use intensity of the filter screens is very high, the air quantity of the filter screens can be reduced if the filter screens are blocked, so that the filter screens need to be cleaned frequently, the cloth bags need to be discharged with more frequent dust due to larger loading capacity, and the subsequent maintenance operation is more, so that the operation cost required by the equipment is increased.

Disclosure of Invention

Accordingly, in order to solve the above-mentioned shortcomings, the present utility model provides a ventilation device for coal mine operation.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a colliery operation ventilation unit, includes air pipe, gallows, ventilation fan and high-efficient dust exhaust device, air pipe tip welded fastening has the gallows, and air pipe passes through the gallows installation to be fixed in the tunnel top, ventilation fan is installed to the inboard head end of air pipe, be provided with high-efficient dust exhaust device on the air pipe, high-efficient dust exhaust device includes dust exhaust pipeline, dust exhaust fan, settling chamber and dust exhaust bucket, dust exhaust pipeline installs under air pipe, dust exhaust fan is installed to the inboard head end of dust exhaust pipeline, the air pipe inboard is provided with the settling chamber, the settling chamber bottom is provided with the dust exhaust bucket, dust exhaust bucket bottom and dust exhaust pipeline intercommunication.

Preferably, the dust exhaust pipe is parallel to the ventilation pipe, and the length of the dust exhaust pipe is not less than the length of the ventilation pipe in the roadway.

Preferably, the ventilating fan and the dust exhaust fan are negative pressure fans.

Preferably, the inner diameter of the settling chamber is larger than the inner diameter of the ventilation pipeline, and in addition, the inner diameter of the inlet of the settling chamber is smaller than the inner diameter of the ventilation pipeline.

Preferably, a dust removing plate is longitudinally installed at a middle region of the settling chamber, and the dust removing plate is downwardly inclined.

Preferably, a baffle is welded at the edge of the dust inlet at the top of the inner side of the dust exhaust pipeline, and the baffle is positioned at one side of the dust inlet close to the dust exhaust fan.

Preferably, the inner wall of the dust exhaust pipeline is sprayed with a release coating.

The utility model has the beneficial effects that:

according to the utility model, the high-efficiency dust discharging device is arranged on the ventilating duct, when the airflow in the ventilating duct passes through the settling chamber, the flow speed is reduced, so that mineral dust is separated from the airflow under the action of gravity and falls down into the dust discharging hopper, the mineral dust particles enter the dust discharging hopper and are poured into the dust discharging duct, and the dust-containing airflow moves along the dust discharging duct and finally is discharged outwards.

According to the utility model, the baffle is arranged at the edge of the dust inlet at the top of the inner side of the dust discharge pipeline, so that the baffle can block the airflow for the dust inlet, and the airflow in the dust discharge pipeline is prevented from blowing the mineral dust in the dust discharge hopper back into the settling chamber.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a right-side cross-sectional structure of a ventilating duct and a dust exhaust duct according to the present utility model;

fig. 3 is an enlarged schematic view of the structure of fig. 2 a according to the present utility model.

Wherein: the dust removing device comprises a ventilating duct-1, a hanging bracket-2, a ventilating fan-3, a high-efficiency dust removing device-4, a dust removing duct-41, a dust removing fan-42, a settling chamber-43, a dust removing hopper-44, a dust removing plate-45 and a baffle plate-46.

Detailed Description

In order to further explain the technical scheme of the utility model, the following is explained in detail through specific examples.

Referring to fig. 1, the utility model provides a ventilation device for coal mine operation, which comprises a ventilation pipeline 1, a hanging bracket 2, a ventilation fan 3 and a high-efficiency dust discharging device 4, wherein the hanging bracket 2 is welded and fixed at the top end of the ventilation pipeline 1, the ventilation pipeline 1 is fixedly arranged at the top of a roadway through the hanging bracket 2, the ventilation fan 3 is arranged at the head end of the inner side of the ventilation pipeline 1, and the high-efficiency dust discharging device 4 is arranged on the ventilation pipeline 1.

Referring to fig. 2-3, the high-efficiency dust discharging device 4 of the present utility model includes a dust discharging pipe 41, a dust discharging fan 42, a settling chamber 43 and a dust discharging hopper 44, wherein the dust discharging pipe 41 is installed under the ventilation pipe 1, the dust discharging pipe 41 and the ventilation pipe 1 are fixedly connected by a bracket, the dust discharging fan 42 is installed at the head end of the inner side of the dust discharging pipe 41, the settling chamber 43 is provided at the inner side of the ventilation pipe 1, the settling chamber 43 is used for separating mineral dust, the dust discharging hopper 44 is provided at the bottom of the settling chamber 43, the bottom end of the dust discharging hopper 44 is bolted to the dust discharging pipe 41, and the dust discharging hopper 44 is mutually communicated with the interior of the dust discharging pipe 41.

Further, the dust discharge pipe 41 is parallel to the ventilation pipe 1, and the length of the dust discharge pipe 41 is not smaller than the length of the ventilation pipe 1 in the roadway, so that the dust discharge pipe 41 can receive the dust discharged by the ventilation pipe 1 in a full range.

Further, the ventilating fan 3 and the dust exhaust fan 42 are negative pressure fans, so that the flowing directions of the dust exhaust pipeline 41 and the ventilating pipeline 1 are consistent, the ventilating pipeline 1 is specially used for exhausting air, the dust exhaust pipeline 41 is specially used for exhausting dust, and the air pollution is reduced by separate treatment.

Further, the inner diameter of the settling chamber 43 is larger than the inner diameter of the ventilation duct 1, and the inner diameter of the inlet of the settling chamber 43 is smaller than the inner diameter of the ventilation duct 1, so that the flow speed of the air flow passing through the settling chamber 43 can be reduced, and the mineral dust can be separated from the air flow under the action of gravity and fall down into the ash discharge hopper 44.

Further, the dust removing plate 45 is longitudinally installed in the middle area of the settling chamber 43, and the dust removing plate 45 is inclined downward, and the dust removing plate 45 is a solid plate, so that when the air flow contacts with the dust removing plate 45, since the inertial force of the dust particles is larger than that of the air flow, the dust can be separated out and guided downward into the dust discharging hopper 44 by the dust removing plate 45, and the dust removing plate 45 can further enhance the air-dust separating effect.

Further to explain, the edge of the dust inlet at the top of the inner side of the dust discharge pipeline 41 is welded with a baffle 46, the baffle 46 is positioned at one side of the dust inlet close to the dust discharge fan 42, the baffle 46 can block the airflow for the dust inlet, and the airflow in the dust discharge pipeline 41 is prevented from blowing the mineral dust in the dust discharge hopper 44 back into the settling chamber 43.

Further, the inner wall of the dust exhaust pipeline 41 is sprayed with a release coating, and the release coating adopts a ceramic coating, so that a certain release effect is achieved, and dust is not easy to accumulate and adhere to the inner side of the dust exhaust pipeline 41.

The working principle is as follows:

firstly, the ventilating duct 1 is hung and installed on the top of a roadway through the hanging frame 2, so that the ventilating duct 1 cannot occupy the space below, and then the ventilating fan 3 and the dust exhaust fan 42 are connected to an external power supply, so that the ventilating duct can be normally electrified and operated.

Secondly, when the mine operation is carried out, the ventilation fan 3 is required to be started, so that various toxic and harmful gases, gas and mine dust under the mine are discharged out of the ground through the ventilation pipeline 1 by the ventilation fan 3, good operation conditions are created for workers, and the safety of the workers is guaranteed.

Thirdly, a large amount of mineral dust particles can be generated during operation under the mine, and the mineral dust can be sucked into the ventilating duct 1 by the ventilating fan 3, so that in order to reduce air pollution, the air dust separation is realized by arranging the high-efficiency dust discharging device 4 on the ventilating duct 1, and the specific dust removing process is as follows: when the air flow in the ventilating duct 1 passes through the settling chamber 43, because the inner diameter of the settling chamber 43 is larger than the inner diameter of the ventilating duct 1, the flow speed is reduced when the air flow passes through the settling chamber 43, mineral dust is separated from the air flow under the action of gravity and falls down into the dust discharge hopper 44, in addition, the dust removal plate 45 is arranged in the middle area of the settling chamber 43, when the air flow contacts with the dust removal plate 45, because the inertia force of mineral dust particles is larger than that of the air flow, the mineral dust can change direction after impacting with the dust removal plate 45, and further, the mineral dust is separated from the air flow, and is downwards led into the dust discharge hopper 44 by the dust removal plate 45, the mineral dust particles are poured into the dust discharge duct 41 after entering the dust discharge hopper 44, and the dust discharge fan 42 is electrified to work, so that the dust-containing air flow moves along the dust discharge duct 41 to be finally discharged outwards.

Fourth, by providing the baffle 46 at the edge of the dust inlet at the top of the inside of the dust discharge duct 41, the baffle 46 can block the air flow for the dust inlet, avoiding the air flow in the dust discharge duct 41 blowing the dust in the dust discharge hopper 44 back into the settling chamber 43.

The utility model provides a ventilation device for coal mine operation, which is characterized in that a high-efficiency dust discharging device 4 is arranged on a ventilation pipeline 1, when air flow in the ventilation pipeline 1 passes through a settling chamber 43, the flow speed is reduced, mineral dust is separated from the air flow under the action of gravity and falls down into a dust discharging hopper 44, mineral dust particles enter the dust discharging hopper 44 and are poured into a dust discharging pipeline 41, and dust-containing air flow moves along the dust discharging pipeline 41 and finally is discharged outwards.

The foregoing is merely a preferred example of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (7)

1. The utility model provides a colliery operation ventilation unit, includes air pipe (1), gallows (2) and ventilation fan (3), air pipe (1) top welded fastening has gallows (2), and air pipe (1) are installed through gallows (2) and are fixed in the tunnel top, ventilation fan (3) are installed to air pipe (1) inboard head end;

the method is characterized in that: still include high-efficient dust exhaust device (4), be provided with high-efficient dust exhaust device (4) on air pipe (1), high-efficient dust exhaust device (4) are including dust exhaust pipeline (41), dust exhaust fan (42), settling chamber (43) and dust exhaust bucket (44), dust exhaust pipeline (41) are installed under air pipe (1), dust exhaust fan (42) are installed to dust exhaust pipeline (41) inboard head end, air pipe (1) inboard is provided with settling chamber (43), settling chamber (43) bottom is provided with dust exhaust bucket (44), dust exhaust bucket (44) bottom and dust exhaust pipeline (41) intercommunication.

2. A coal mine operation ventilation arrangement as claimed in claim 1, wherein: the dust discharge pipeline (41) is parallel to the ventilation pipeline (1), and the length of the dust discharge pipeline (41) is not smaller than the length of the ventilation pipeline (1) in the roadway.

3. A coal mine operation ventilation arrangement as claimed in claim 1, wherein: the ventilating fan (3) and the dust exhaust fan (42) are both negative pressure fans.

4. A coal mine operation ventilation arrangement as claimed in claim 1, wherein: the inner diameter of the sedimentation chamber (43) is larger than that of the ventilation pipeline (1), and in addition, the inner diameter of the inlet of the sedimentation chamber (43) is smaller than that of the ventilation pipeline (1).

5. A coal mine operation ventilation arrangement as claimed in claim 1, wherein: a dust removal plate (45) is longitudinally installed in the middle region of the settling chamber (43), and the dust removal plate (45) is inclined downward.

6. A coal mine operation ventilation arrangement as claimed in claim 1, wherein: a baffle (46) is welded at the edge of a dust inlet at the top of the inner side of the dust exhaust pipeline (41), and the baffle (46) is positioned at one side of the dust inlet close to the dust exhaust fan (42).

7. A coal mine operation ventilation arrangement as claimed in claim 1, wherein: the inner wall of the dust exhaust pipeline (41) is sprayed with an anti-sticking coating.