CN215108987U

CN215108987U - Air locking duct device for coal mine and pressure equalizing facility provided with same

Info

Publication number: CN215108987U
Application number: CN202120958566.0U
Authority: CN
Inventors: 田中华; 常云博; 刘春江; 郑立永; 王宗勇; 任晓鹏; 杨政军; 朱红金; 连鹏; 苏继敏
Original assignee: China Coal Technology and Engineering Group Corp; Beijing Tiandi Huatai Mining Management Co Ltd
Current assignee: China Coal Technology and Engineering Group Corp; Beijing Tiandi Huatai Mining Management Co Ltd
Priority date: 2021-05-07
Filing date: 2021-05-07
Publication date: 2021-12-10
Anticipated expiration: 2031-05-07

Abstract

The utility model provides a coal mine air locking wind barrel device and a pressure equalizing facility provided with the device, wherein the device comprises a wind barrel with two open ends, a cylindrical wind barrel and a circular wind board arranged in the inner cavity of the wind barrel; the walls of the wind cylinders at two sides of the wind cylinder are respectively provided with a through hole, the horizontal heights of the two through holes are the same, the central line of the two through holes is vertically intersected with the central axis of the wind cylinder, and a steel bar passes through the two through holes and is fixedly connected with one surface of the wind shield; the lower part of one surface of the wind shield is fixedly connected with a balancing weight, and the circumference of the wind shield is provided with a rubber sealing ring; a limiting block is arranged on the inner wall of the air duct and in front of the wind shield; the deep bead uses the reinforcing bar as the pivot free rotation, and when the deep bead touched the stopper, the deep bead was perpendicular with the central axis of dryer. The utility model discloses can be when using the voltage-sharing to ventilate, the air duct air leakage passageway of self-sealing voltage-sharing ventilation facility department after the air supply interruption of no plan takes place for the auxiliary ventilating fan, ensures voltage-sharing ventilation within range operation personnel's safety.

Description

Air locking duct device for coal mine and pressure equalizing facility provided with same

Technical Field

The utility model belongs to the technical field of mining equipment, especially, relate to voltage-sharing ventilation technique wherein, specifically be a colliery lock wind dryer device and install device's voltage-sharing facility.

Background

In the technical field of coal mining, the pressure equalizing and ventilation technology of mine seeds is very important. The existing pressure-equalizing ventilation technology can only manually seal the air outlet of the air duct after the local ventilator stops air in an unplanned manner so as to prevent toxic and harmful gases from gushing out, and the existing pressure-equalizing ventilation technology is long in use time in the sealing process and very easy to cause toxic and harmful gas poisoning accidents.

Disclosure of Invention

An object of the utility model is to provide a colliery lock wind dryer device to the problem that above-mentioned prior art exists, can be in the use voltage-sharing ventilation period, and the overhead fan takes place automatic sealing voltage-sharing ventilation facility department dryer air leakage passageway after unplanned blowing out, ensures voltage-sharing ventilation within range operation personnel's safety. The utility model aims at realizing through the following technical scheme:

on one hand, the utility model provides a coal mine air locking wind barrel device, which comprises a cylindrical wind barrel with openings at two ends and a circular wind shield arranged in the inner cavity of the wind barrel, wherein the outer diameter of the wind shield is the same as the inner diameter of the wind barrel; the wind tube walls on two sides of the wind tube are respectively provided with a through hole, the horizontal heights of the two through holes are the same, the central connecting line of the two through holes is vertically intersected with the central axis of the wind tube, a steel bar penetrates through the two through holes and is fixedly connected with one surface of the wind shield, and the length of the part of the steel bar penetrating through the wind shield is equal to the diameter of the wind shield; the lower part of one surface of the wind shield is fixedly connected with a balancing weight, and the circumference of the wind shield is provided with a rubber sealing ring; a limiting block is arranged on the inner wall of the air duct and in front of the wind shield; the deep bead uses the reinforcing bar as the pivot free rotation, and when the deep bead touched the stopper, the deep bead was perpendicular with the central axis of dryer.

In a further optimization scheme, two ends of the reinforcing steel bars exposed out of the air duct are respectively connected with an anti-falling firmware.

Furthermore, the anti-dropping fastener is a screwed nut or a welded fixing block.

Furthermore, the circumference welding of through-hole thickens the steel sheet, and the sealing washer is installed to the junction of reinforcing bar and through-hole to scribble lubricating oil.

Furthermore, the dryer is an iron sheet tube, and the outer wall of the dryer is provided with a plurality of reinforced iron rings with the same interval.

Furthermore, the part of the wind shield except the rubber sealing ring is a galvanized iron sheet.

Furthermore, the balancing weight is a cuboid iron block.

In another aspect, the utility model provides an install the pressure-equalizing facility of colliery lock wind dryer device.

The utility model has the advantages that:

1) the air locking air duct device can automatically seal the air outlet of the air duct after the local ventilator stops air during the pressure-equalizing ventilation of the mine, so that the toxic and harmful gas on the working face is prevented from being blown out, the time required for manually plugging the air outlet of the air duct is greatly shortened, the safety of using the pressure-equalizing ventilation is improved, the powerful guarantee is provided for the penetration of the driving working face and the exploration of old lane work, and more precious escape time is strived for working face operators;

2) the device for processing and manufacturing has the advantages of simple process, convenient maintenance, reliability, durability and low cost.

Drawings

Fig. 1 is a schematic view of the overall structure of the air-lock duct device (in a wind-cut-off state);

fig. 2 is a schematic view of the whole structure of the air-lock duct device (ventilation state);

FIG. 3 is a schematic view of a wind deflector and a reinforcing bar installation structure;

FIG. 4 is a schematic view of a counterweight block;

FIG. 5 is a schematic structural view of a pressure-equalizing facility for installing the air-lock duct device for coal mine;

reference numerals:

1. an air duct; 2. a wind deflector; 3. reinforcing steel bars; 4. a balancing weight; 5. a limiting block; 6. a rubber seal ring; 7. anti-drop firmware.

Detailed Description

Example 1

As shown in fig. 1 to 3, an air-lock air duct device for a coal mine comprises a cylindrical air duct 1 with openings at two ends and a circular wind shield 2 arranged in an inner cavity of the air duct, wherein the outer diameter of the wind shield 2 is the same as the inner diameter of the air duct 1; the walls of the wind cylinders at two sides of the wind cylinder 1 are respectively provided with a through hole, the horizontal heights of the two through holes are the same, the central connecting line of the two through holes is vertically intersected with the central axis of the wind cylinder (the dotted line in figures 1 and 2 indicates the central axis of the wind cylinder, and the lower part is the same), a reinforcing steel bar 3 passes through the two through holes and is fixedly connected with one surface of the wind deflector 2, and the length of the part of the reinforcing steel bar 3 passing through the wind deflector 2 is equal to the length of the diameter of the wind deflector 2; the lower part of one surface of the wind shield 2 is fixedly connected with a balancing weight 4, and the circumference of the wind shield 2 is provided with a rubber sealing ring 6; a limiting block 5 is arranged on the inner wall of the air duct 1 and in front of the wind shield 2; the wind shield 2 uses the steel bar 3 as a rotating shaft to rotate freely, and when the wind shield 2 touches the limiting block 5, the wind shield 2 is vertical to the central axis of the wind cylinder 1. In the wind stopping state, the wind barrel locking device is in a closed state under the action of the balancing weight 4 and the limiting block 5, and the wind shield 2 is vertical to the central axis of the wind barrel 1, as shown in figure 1; after the fan is started, the wind deflector 2 is parallel to the wind direction of the wind flow due to the wind pressure, so that the wind deflector is parallel to the central axis of the wind cylinder 1, as shown in fig. 2.

In this embodiment, the wind cone 1 is an iron sheet wind cone with an inner diameter of 1000mm and a length of 2000mm, the wind deflector 2 is composed of a circular galvanized iron sheet and a rubber sealing ring 6 sleeved on the circumference of the circular galvanized iron sheet, the diameter of the circular galvanized iron sheet is 980mm, the width of the rubber sealing ring body is 40mm, and the outer diameter of the wind deflector 2 after the wind deflector 2 is formed is exactly about 1000mm due to extrusion and is the same as the inner diameter of the wind cone 1. As shown in fig. 4, the weight block 4 is a rectangular iron block with a volume of 10mm 100mm 50mm, the weight block 4 is welded below the front face of the wind deflector 2, and the distance from the weight block 4 to the center of the wind deflector 2 is 480mm

In this embodiment, the reinforcing steel bar 3 is fixedly connected to the two ends of the front surface of the round galvanized iron sheet of the wind deflector 2 by welding. In actual operation, two earrings can be arranged at two ends of the front surface of the round galvanized iron sheet, and the reinforcing steel bar 3 penetrates through the two earrings and is firmly welded with the earrings.

In this embodiment, two ends of the reinforcing steel bar 3 exposed outside the air duct 1 are respectively connected with a screwed nut as the anti-falling fastener 7. In actual operation, the fixed block can be welded instead of the nut.

In this embodiment, the circumference welding of the through-hole of dryer 1 has the thickening steel sheet, and the sealing washer is installed with the junction of through-hole to reinforcing bar 3 to scribble lubricating oil, this position is mechanical rotation position, need often filling lubricating oil in the routine maintenance in-process.

In this embodiment, the outer wall of the air duct 1 is provided with a plurality of reinforcing iron rings with the same interval. The air duct 1 can be recycled by waste iron sheets or iron tubes.

The limiting block 5 in this embodiment is a wedge-shaped iron block, and is welded on the inner wall of the lower portion of the air duct 1 and in the position in front of the wind shield 2 (on the side where the ventilator is arranged).

Example 2

As shown in fig. 5, a pressure equalizing facility is provided with the coal mine air locking duct device in the embodiment 1. An air locking air duct device is arranged in an air duct above the pressure equalizing facility, a U-shaped differential pressure gauge and a pedestrian air door are arranged below the pressure equalizing facility, and a ventilator is arranged on one side of the pressure equalizing facility.

Claims

1. The utility model provides a colliery lock wind dryer device which characterized in that: the wind-driven generator comprises a cylindrical wind barrel (1) with openings at two ends and a circular wind shield (2) arranged in an inner cavity of the wind barrel, wherein the outer diameter of the wind shield (2) is the same as the inner diameter of the wind barrel (1); the wind barrel walls on two sides of the wind barrel (1) are respectively provided with a through hole, the horizontal heights of the two through holes are the same, the central line of the two through holes is vertically intersected with the central axis of the wind barrel, a reinforcing steel bar (3) penetrates through the two through holes and is fixedly connected with one surface of the wind shield (2), and the length of the part of the reinforcing steel bar (3) penetrating through the wind shield (2) is equal to the length of the diameter of the wind shield (2); the lower part of one surface of the wind shield (2) is fixedly connected with a balancing weight (4), and the circumference of the wind shield (2) is provided with a rubber sealing ring (6); a limiting block (5) is arranged on the inner wall of the air duct (1) and in front of the wind shield (2); the wind shield (2) uses the steel bar (3) as a rotating shaft to rotate freely, and when the wind shield (2) touches the limiting block (5), the wind shield (2) is vertical to the central axis of the air duct (1).

2. The coal mine air lock barrel device according to claim 1, characterized in that: the two ends of the reinforcing steel bars (3) exposed out of the air duct (1) are respectively connected with an anti-falling firmware (7).

3. The coal mine air lock barrel device according to claim 2, characterized in that: the anti-falling fixing piece (7) is a screwed nut or a welded fixing block.

4. The coal mine air lock barrel device according to claim 2, characterized in that: the circumference welding thickening steel sheet of through-hole, the sealing washer is installed with the junction of through-hole to reinforcing bar (3) to scribble lubricating oil.

5. The coal mine air lock barrel device according to claim 1, characterized in that: the air duct (1) is an iron sheet duct, and the outer wall of the air duct is provided with a plurality of reinforcing iron rings with the same intervals.

6. The coal mine air lock barrel device according to claim 1, characterized in that: the part of the wind shield (2) except the rubber sealing ring (6) is a galvanized iron sheet.

7. The coal mine air lock barrel device according to claim 1, characterized in that: the balancing weight (4) is a cuboid iron block.

8. A pressure equalizing facility equipped with the coal mine air locking duct device of claim 1.