CN113107571B - Air door device for steel well wall return air small well and application method thereof - Google Patents
Air door device for steel well wall return air small well and application method thereof Download PDFInfo
- Publication number
- CN113107571B CN113107571B CN202110515722.0A CN202110515722A CN113107571B CN 113107571 B CN113107571 B CN 113107571B CN 202110515722 A CN202110515722 A CN 202110515722A CN 113107571 B CN113107571 B CN 113107571B
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- connecting piece
- air
- lower connecting
- air plate
- protective net
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 41
- 239000010959 steel Substances 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000001681 protective effect Effects 0.000 claims abstract description 29
- 238000009434 installation Methods 0.000 claims description 9
- 238000005065 mining Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000009423 ventilation Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 230000005641 tunneling Effects 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/10—Air doors
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Air-Flow Control Members (AREA)
Abstract
The invention discloses an air door device for a steel well wall return air small well and an application method thereof, belongs to the field of underground mining, and solves the problem that the existing steel well wall return air small well has air flow short circuit. The wind plate comprises an upper connecting piece, a lower connecting piece, a first wind plate and a second wind plate, wherein the upper connecting piece and the lower connecting piece are detachably connected, the first wind plate is in a semicircular shape, the top of a circular arc section of the first wind plate is rotationally connected to the lower edge of the lower connecting piece, a protective net is arranged at the bottom of the lower connecting piece, the second wind plate is in a semicircular shape, the center of a straight section of the second wind plate is rotationally connected to the center of a straight section of the protective net, and the top of the circular arc section of the second wind plate is rotationally connected to the edge of the lower connecting piece corresponding to the straight section of the protective net. The application method comprises the following steps: the upper connecting piece is arranged at the bottom end of a small steel well wall return air well; installing a lower connecting piece and a filling pipeline; and the air inlet angle is adjusted through the first air plate and the second air plate. According to the invention, the wind current trend can be controlled by opening and closing and rotating the two wind plates, so that the underground operation environment of the mine is improved.
Description
Technical Field
The invention belongs to the field of underground mining, and particularly relates to an air door device for a steel well wall return air small well and an application method thereof.
Background
In the mine production process, the roadway channels are rearranged at the empty areas formed by the previous production to serve the subsequent production due to the requirements of the production process or the construction of a production system. The roadway is rearranged in the empty area in two modes of tunneling and reserving, wherein the empty area is required to be filled before the roadway is tunneling in the filling body in a tunneling mode, and the mode is not reasonable economically; therefore, in the engineering, a reserved mode is mostly adopted, in order to facilitate construction and ensure the supporting quality of the formed roadway channel, a reserved channel with a circular cross section is formed in an empty area by assembling a large arc plate-shaped template, the empty area outside the template is filled again, the large arc plate template serving as a mould is not removed, but is directly used as a permanent support of the reserved roadway channel, the closed large arc plate steel template is used as a permanent support of a steel well wall, the reserved formed roadway channel is called a false well, the straight direction is called a steel well wall false well, and the vertical direction is called a steel well wall reserved well.
The underground false tunnels of the mine are generally used as ventilation and filling channels, and a plurality of vertical ore body trends and the filling return air channels of the mine are formed by mutually communicating the multiple vertical ore body trends and the multiple vertical ore body trends along the ore body trends together with the ventilation shaft and the filling shaft. In engineering practice, steel reinforcement meshes are directly welded at the lower ends of the steel well wall reserved wells, pedestrian passages and filling pipeline passages are reserved in openings of the steel reinforcement meshes, a plurality of steel well wall reserved wells are arranged in a disc area, all the steel well wall reserved wells are in a ventilation state during normal production, when fresh air flows enter from a disc area turnout, most of the fresh air flows can directly enter an air return duct through the steel well wall reserved wells closest to the turnout, short circuit of the air flows is caused, the fresh air flows entering a working face (a palm head) are reduced, and the disc area ventilation effect is poor.
Disclosure of Invention
The invention aims to provide an air door device for a steel well wall return air small well, which aims to solve the problem of short circuit of air current existing in the existing steel well wall return air small well.
Another object of the present invention is to provide a method of using a damper apparatus for a steel wall return air small well.
The technical scheme of the invention is as follows: the utility model provides a damper device for steel wall of a well return air pit, including last connecting piece, lower connecting piece, first aerofoil and second aerofoil, go up connecting piece and lower connecting piece and all be cylindric, go up the connecting piece and can dismantle between the connecting piece down, it is equipped with the installation draw-in groove to go up the connecting piece upper end, first aerofoil is semi-circular, first aerofoil circular arc section top rotates to be connected and follows under the connecting piece, the connecting piece bottom is equipped with the protection network down, the protection network is semi-circular, be equipped with pedestrian passageway and filling pipeline passageway on the protection network, the second aerofoil is semi-circular, the straight section center of second aerofoil rotates to be connected at the straight section center of protection network, the second aerofoil circular arc section top rotates to be connected at the lower connecting piece border that the protection network straight section corresponds.
As a further improvement of the invention, a slot matched with the filling pipeline channel is arranged in the center of the straight section of the first air plate.
As a further improvement of the invention, the first air plate and the protective net have the same size; the second air plate and the bottom of the lower connecting piece are not provided with the protective net part with the same size.
As a further improvement of the invention, the lengths of the first air plate arc section and the protective net arc section are 1/3-1/2 of the inner diameter circumference length of the lower connecting piece; the length of the second air plate arc section is 1/2-2/3 of the inner diameter circumference length of the lower connecting piece.
Further, the lengths of the first air plate arc section and the protective net arc section are 1/3 of the inner diameter circumference length of the lower connecting piece; the length of the second aerofoil arc section is 2/3 of the inner diameter circumference length of the lower connecting piece.
As a further improvement of the invention, the first air plate is connected with the lower connecting piece through a hinge; the second air plate is connected with the lower connecting piece through a rotating shaft.
As a further improvement of the invention, the bottom of the upper connecting piece and the top of the lower connecting piece are respectively provided with a flange, and bolt holes are uniformly distributed on the flanges.
As a further improvement of the invention, the bolt holes are long holes, so that the installation angle of the lower connecting piece can be conveniently adjusted, and the installation and the use of the filling pipeline are convenient.
An application method of a throttle device for a steel well wall return air small well comprises the following steps:
A. the upper connecting piece is arranged at the bottom end of the steel well wall return air small well through the mounting clamping groove;
B. installing the lower connecting piece at the lower end of the upper connecting piece;
C. installing a filling pipeline through a filling pipeline channel;
D. The first air plate is selected to be opened or closed according to the use requirement; and rotating the second air plate according to the use requirement, and adjusting the air inlet angle.
The beneficial effects of the invention are as follows: the device of the invention is formed into a cylindrical box structure after the upper connecting piece and the lower connecting piece are assembled, the lower connecting piece can select a flexible installation angle in the horizontal direction, so that the device is convenient for the installation and use of a filling pipeline, the second air plate can rotate in a vertical space for any angle, the trend of air flow (fresh air flow/sewage air) can be controlled, the ventilation efficiency is improved, and meanwhile, the first air plate can be selectively opened or closed according to the use requirement to be matched with the adjustment of the trend of the air flow. The device has reasonable design, and can control the trend of wind current by opening and closing and rotating the two wind plates, thereby improving the underground operation environment of the mine. The assembly part of the device can be used for standard continuous production, the overall construction efficiency of engineering is improved, the materials are widely available, the design and the processing can be carried out according to the needs, and the device has good popularization prospect. The application method of the invention has simple and convenient operation and easy adjustment of wind direction.
Drawings
FIG. 1 is a schematic view of the structure of the damper apparatus for a steel wall return air small well of the present invention;
FIG. 2 is a schematic view of the structure of the upper connector of the present invention;
FIG. 3 is a schematic view of the structure of the lower connector of the present invention;
FIG. 4 is a schematic illustration of the connection of the first and second damper to the lower connector in accordance with the present invention.
In the figure: 1-an upper connector; 2-a lower connector; 3-mounting a clamping groove; 4-a first wind plate; 41-a first aerofoil flat section; 42-a first aerofoil arc section; 5-a second wind plate; 51-a second aerofoil flat section; 52-a second aerofoil arc section; 6-a protective net; 61-a straight section of the protective net; 62-a protective net arc section; 7-pedestrian walkways; 8-filling the pipeline channel; 9-slotting; 10-hinges; 11-a rotation axis; 12-flanges; 13-bolt holes.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1-4, the air door device for the steel well wall return air small well comprises an upper connecting piece 1, a lower connecting piece 2, a first air plate 4 and a second air plate 5, wherein the upper connecting piece 1 and the lower connecting piece 2 are cylindrical, the upper connecting piece 1 and the lower connecting piece 2 are detachably connected, an installation clamping groove 3 is arranged at the upper end of the upper connecting piece 1, the first air plate 4 is semi-circular, the top of a circular arc section 42 of the first air plate is rotationally connected to the lower edge of the lower connecting piece 2, a protective screen 6 is arranged at the bottom of the lower connecting piece 2, the protective screen 6 is semi-circular, a pedestrian passageway 7 and a filling pipeline passageway 8 are arranged on the protective screen 6, the second air plate 5 is semi-circular, the center of the straight section 51 of the second air plate is rotationally connected to the center of the straight section 61 of the protective screen, and the top of the circular arc section 52 of the second air plate is rotationally connected to the edge of the lower connecting piece 2 corresponding to the straight section 61 of the protective screen.
The center of the straight section 41 of the first air plate is provided with a slot 9 matched with the filling pipeline channel 8.
The first air plate 4 and the protective net 6 have the same size; the second wind plate 5 has the same size as the part of the bottom of the lower connecting piece 2, which is not provided with the protective net 6.
The lengths of the first air plate arc section 42 and the protective net arc section 62 are 1/3-1/2 of the inner diameter circumference length of the lower connecting piece 2; the length of the second aerofoil arc section 52 is 1/2-2/3 of the inner diameter circumference of the lower connector 2.
The lengths of the first air plate arc section 42 and the protective net arc section 62 are 1/3 of the inner diameter circumference length of the lower connecting piece 2; the length of the second aerofoil arc section 52 is 2/3 of the inner diameter circumferential length of the lower connector 2.
The first air plate 4 is connected with the lower connecting piece 2 through a hinge 10; the second damper 5 is connected to the lower connector 2 by a rotation shaft 11.
The bottom of the upper connecting piece 1 and the top of the lower connecting piece 2 are respectively provided with a flange 12, and bolt holes 13 are uniformly distributed on the flange 12. The bolt holes 13 are elongated holes.
An application method of a throttle device for a steel well wall return air small well comprises the following steps:
A. Round steel is welded at the bottom end of the steel well wall air return small well, and the upper connecting piece 1 is rotationally clamped and installed on reserved round steel at the bottom end of the steel well wall air return small well through the installation clamping groove 3; if the fixing is unstable, bolts can be added to the side face of the upper connecting piece 1 for fixing;
B. A proper installation angle is selected, the lower connecting piece 2 is installed at the lower end of the upper connecting piece 1 through the flange 12, bolts are installed in the bolt holes 13 for connection, and horizontal fine adjustment can be carried out through the long bolt holes 13;
C. Installing a filling pipeline through a filling pipeline channel 8;
D. the opening and closing of the first air plate 4 are selected according to the use requirement; the second air plate 5 is rotated according to the use requirement, and the air inlet angle is adjusted.
Example 1,
The first air plate 4 and the second air plate 5 are both made of steel plates with the thickness of 2mm, the flange 12 is made of steel plates with the thickness of 8mm, the protection net 6 is made of phi 12 steel bars, the net degree is 100mm multiplied by 100mm, the upper connecting piece 1 and the lower connecting piece 2 are both made of steel plates with the thickness of 6mm, and all the components except the first air plate 4 and the second air plate 5 are connected in a welding mode. The flange 12 is uniformly provided with 6 long bolt holes 13. The arc length of the first aerofoil arc section 42 and the protective net arc section 62 is 1/3 of the inner diameter circumference of the lower connecting piece 2, and the arc length of the second aerofoil arc section 52 is 2/3 of the inner diameter circumference of the lower connecting piece 2.
The first air plate 4 is opened and closed through a hinge 10, the second air plate 5 is rotated through a rotating shaft 11, and the adjusting positions of the first air plate 4 and the second air plate 5 can be locked through mechanical buckles.
Claims (7)
1. A air door device for steel wall of a well return air pit, its characterized in that: the novel energy-saving air conditioner comprises an upper connecting piece (1), a lower connecting piece (2), a first air plate (4) and a second air plate (5), wherein the upper connecting piece (1) and the lower connecting piece (2) are cylindrical, the upper connecting piece (1) and the lower connecting piece (2) are detachably connected, an installation clamping groove (3) is formed in the upper end of the upper connecting piece (1), the first air plate (4) is semi-circular, the top of a first air plate arc section (42) is rotationally connected to the lower edge of the lower connecting piece (2), a protective net (6) is arranged at the bottom of the lower connecting piece (2), the protective net (6) is semi-circular, a pedestrian passageway (7) and a filling pipeline passageway (8) are formed in the protective net (6), the second air plate (5) is semi-circular, the center of the second air plate straight section (51) is rotationally connected to the center of the protective net straight section (61), and the top of the second air plate arc section (52) is rotationally connected to the edge of the lower connecting piece (2) corresponding to the protective net straight section (61);
the flange (12) is respectively arranged at the bottom of the upper connecting piece (1) and the top of the lower connecting piece (2), bolt holes (13) are uniformly distributed on the flange (12), and the bolt holes (13) are long holes.
2. A damper assembly for a steel borehole wall return air pit as set forth in claim 1 wherein: the center of the straight section (41) of the first air plate is provided with a slot (9) matched with the filling pipeline channel (8).
3. A damper assembly for a steel wall return air pit according to claim 1 or 2, wherein: the first air plate (4) and the protective net (6) are the same in size; the second air plate (5) and the part of the bottom of the lower connecting piece (2) which is not provided with the protective net (6) have the same size.
4. A damper assembly for a steel borehole wall return air pit as set forth in claim 3 wherein: the lengths of the first air plate arc section (42) and the protective net arc section (62) are 1/3-1/2 of the inner diameter circumference length of the lower connecting piece (2); the length of the second air plate arc section (52) is 1/2-2/3 of the inner diameter circumference length of the lower connecting piece (2).
5. A damper assembly for a steel borehole wall return air pit according to claim 4, wherein: the lengths of the first air plate arc section (42) and the protective net arc section (62) are 1/3 of the inner diameter circumference length of the lower connecting piece (2); the length of the second air plate arc section (52) is 2/3 of the inner diameter circumference length of the lower connecting piece (2).
6. A damper assembly for a steel borehole wall return air pit according to claim 5, wherein: the first air plate (4) is connected with the lower connecting piece (2) through a hinge (10); the second air plate (5) is connected with the lower connecting piece (2) through a rotating shaft (11).
7. A method of using the damper apparatus for steel wall return air small well according to claim 1, comprising the steps of:
A. the upper connecting piece (1) is arranged at the bottom end of a small steel well wall return air well through the mounting clamping groove (3);
B. The lower connecting piece (2) is arranged at the lower end of the upper connecting piece (1);
C. Installing a filling pipeline through a filling pipeline channel (8);
D. The opening and the closing of the first air plate (4) are selected according to the use requirement; and rotating the second air plate (5) according to the use requirement, and adjusting the air inlet angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110515722.0A CN113107571B (en) | 2021-05-12 | 2021-05-12 | Air door device for steel well wall return air small well and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110515722.0A CN113107571B (en) | 2021-05-12 | 2021-05-12 | Air door device for steel well wall return air small well and application method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113107571A CN113107571A (en) | 2021-07-13 |
| CN113107571B true CN113107571B (en) | 2024-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110515722.0A Active CN113107571B (en) | 2021-05-12 | 2021-05-12 | Air door device for steel well wall return air small well and application method thereof |
Country Status (1)
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| CN (1) | CN113107571B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191106023A (en) * | 1911-03-10 | 1911-06-29 | Samuel Griffiths | Improvements in and relating to Air-doors in and above Mines. |
| CN2130210Y (en) * | 1991-12-05 | 1993-04-21 | 西山矿务局 | Mechanical automatic closing interlock device for mine air door |
| CN101672193A (en) * | 2009-10-13 | 2010-03-17 | 大同煤矿集团衡安装备有限公司 | Stepless adjustment insert plate type windscreen |
| CN102410044A (en) * | 2011-07-14 | 2012-04-11 | 鸡西司瑞电气有限公司 | Vertical ventilating shaft explosion door capable of automatically resetting after blast release and pressure relief |
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| CN108798700A (en) * | 2018-05-21 | 2018-11-13 | 金川集团股份有限公司 | A kind of connector and its application for reserving shaft steel casing vacation tunnel |
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| CN214887181U (en) * | 2021-05-12 | 2021-11-26 | 金川集团股份有限公司 | Air door device for steel well wall air return small well |
-
2021
- 2021-05-12 CN CN202110515722.0A patent/CN113107571B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191106023A (en) * | 1911-03-10 | 1911-06-29 | Samuel Griffiths | Improvements in and relating to Air-doors in and above Mines. |
| CN2130210Y (en) * | 1991-12-05 | 1993-04-21 | 西山矿务局 | Mechanical automatic closing interlock device for mine air door |
| CN101672193A (en) * | 2009-10-13 | 2010-03-17 | 大同煤矿集团衡安装备有限公司 | Stepless adjustment insert plate type windscreen |
| CN102410044A (en) * | 2011-07-14 | 2012-04-11 | 鸡西司瑞电气有限公司 | Vertical ventilating shaft explosion door capable of automatically resetting after blast release and pressure relief |
| CN107725093A (en) * | 2017-11-25 | 2018-02-23 | 彝良驰宏矿业有限公司 | It is a kind of can rapid build local air return system |
| CN208153044U (en) * | 2018-04-03 | 2018-11-27 | 金川集团股份有限公司 | A kind of Air Throttle in Mine Pit self-locking device |
| CN108798700A (en) * | 2018-05-21 | 2018-11-13 | 金川集团股份有限公司 | A kind of connector and its application for reserving shaft steel casing vacation tunnel |
| CN111963456A (en) * | 2020-08-12 | 2020-11-20 | 李伟强 | Ventilation device capable of automatically adjusting air intake based on mine |
| CN214887181U (en) * | 2021-05-12 | 2021-11-26 | 金川集团股份有限公司 | Air door device for steel well wall air return small well |
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| CN113107571A (en) | 2021-07-13 |
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Effective date of registration: 20240411 Address after: 737104 No. 2 Lanzhou Road, Beijing Road Street, Jinchuan District, Jinchang City, Gansu Province Applicant after: Jinchuan Group Nickel Cobalt Co.,Ltd. Country or region after: China Address before: 737103 No. 98, Jinchuan Road, Jinchang, Gansu Applicant before: JINCHUAN GROUP Co.,Ltd. Country or region before: China |
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