CN215566056U - Mine ventilation device for coal mining - Google Patents
Mine ventilation device for coal mining Download PDFInfo
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- CN215566056U CN215566056U CN202121802180.7U CN202121802180U CN215566056U CN 215566056 U CN215566056 U CN 215566056U CN 202121802180 U CN202121802180 U CN 202121802180U CN 215566056 U CN215566056 U CN 215566056U
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- 238000009423 ventilation Methods 0.000 title claims abstract description 30
- 239000003245 coal Substances 0.000 title claims abstract description 23
- 238000005065 mining Methods 0.000 title claims abstract description 21
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 5
- 230000009711 regulatory function Effects 0.000 abstract description 2
- 239000002817 coal dust Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
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Abstract
The application discloses a mine ventilation device for coal mining, which comprises a base, a bottom column, a bottom plate, a shell, a mounting rack and a threaded rod, the bottom end of the base is provided with an adjusting groove, a plurality of threaded nails are arranged in the adjusting groove, the bottom ends of the threaded nails penetrate through the base, the center of the top of the base is fixedly connected with a bottom column, the center of the bottom of the inner cavity of the bottom column is provided with a driven bevel gear, the bottom of the driven bevel gear is rotationally connected with the bottom of the inner cavity of the bottom column, the top of the driven bevel gear is fixedly connected with a threaded sleeve, the threaded sleeve is internally sleeved with a threaded rod, the top end of the threaded rod penetrates through the threaded sleeve and is fixedly connected with the bottom of the bottom plate, the bottoms of the two sides of the inner cavity of the bottom column are fixedly connected with sleeves, the bottom of the inner cavity of each sleeve is fixedly connected with a spring, the top of each spring is fixedly connected with a movable plate, the center of the top of the moving plate is fixedly connected with a movable rod, and the top end of the movable rod penetrates through the sleeve and is fixedly connected with the bottom of the bottom plate through the bottom column. The application provides a mine ventilation unit for coal mining with regulatory function.
Description
Technical Field
The application relates to a ventilation device, in particular to a mine ventilation device for coal mining.
Background
A mine is a generic term for roadways, chambers, equipment, ground buildings and structures that form the production system of an underground coal mine. Inclined shafts, vertical shafts, adits and the like in underground mining of mines are also sometimes referred to as mines. The determination of the field range size, the mine production capacity and the service life of each mine is one of the key problems which must be solved in the mine self-design.
When coal is mined, a large amount of dust and coal powder are contained in a mine, the mine floats in the air, the internal safety of the mine is influenced, the later environment is influenced, the body health of coal mining personnel is also influenced when the mine floats in the air, and therefore a ventilation device is needed to ensure air circulation. Therefore, a mine ventilation device for coal mining is provided to solve the above problems.
Disclosure of Invention
A mine ventilation device for coal mining comprises a base, a bottom column, a bottom plate, a shell, a mounting frame and a threaded rod, wherein an adjusting groove is formed in the bottom end of the base, a plurality of threaded nails are arranged inside the adjusting groove, the bottom ends of the threaded nails penetrate through the base, the center of the top of the base is fixedly connected with the bottom column, a driven bevel gear is arranged in the center of the bottom column inner cavity bottom, the bottom of the driven bevel gear is rotatably connected with the bottom of the bottom column inner cavity, a threaded sleeve is fixedly connected to the top of the driven bevel gear, the threaded rod is sleeved inside the threaded sleeve, the top end of the threaded rod penetrates through the threaded sleeve and is fixedly connected with the bottom of the bottom column fixedly connected with the bottom plate, sleeves are fixedly connected to the bottoms of two sides of the bottom column inner cavity, a spring is fixedly connected to the bottom of the sleeve inner cavity, a movable plate is fixedly connected to the top of the spring, a movable rod penetrates through the sleeves and the bottom column is fixedly connected to the bottom plate;
the top of the bottom plate is symmetrically and fixedly connected with two supports, the two supports are movably connected with a shell, two sides of the shell are provided with two first connecting blocks, the top end and the bottom end of each first connecting block are movably connected with a first connecting block, the two first connecting blocks are fixedly connected with the shell and the bottom plate respectively, a fan is installed on one side of the shell, one end of the fan penetrates through the shell and is fixedly connected with a connecting plate, a mounting frame is arranged in an inner cavity of the shell, a first filter screen and a second filter screen are sequentially arranged in the inner cavity of the mounting frame from left to right, a lead screw is arranged in the inner cavity of the mounting frame, the top end of the lead screw penetrates through the mounting frame and the shell and is connected with a motor, a slide block is sleeved on the surface of the lead screw, and a cleaning brush is fixedly connected to one side of the slide block;
the shell inner chamber one side symmetry is equipped with two fly leaves, two fly leaf back of the body one end mutually all passes through the loose axle and connects shells inner wall, fly leaf one side is equipped with first electric putter, fly leaf and shells inner wall are connected respectively through the second connecting block in first electric putter both ends.
Further, first filter screen and second filter screen both ends are installed respectively inside the draw-in groove, draw-in groove rigid coupling mounting bracket inner wall, mounting bracket and casing rigid coupling limiting plate are all run through on first filter screen and second filter screen top.
Further, the first connecting block of equal swing joint in both ends, the equal swing joint second connecting block in first electric putter both ends.
Further, the surface of the lead screw is connected with the sliding block through threads, a baffle is arranged at the bottom of the lead screw, and the diameter of the baffle is larger than that of the lead screw.
Further, the top and the bottom of the connecting plate are connected with the side wall of the shell through screws, and the bottom of the shell is provided with a collecting box.
Furthermore, an air outlet is fixedly connected to one side of the shell, and the geometric shape of the air outlet is a conical structure.
Furthermore, one side of the driven bevel gear is provided with a driving bevel gear which is meshed with the driven bevel gear, one end of the bottom column is provided with a rocker, and the rocker penetrates through the bottom column and is fixedly connected with the driving bevel gear.
Furthermore, the width of the section of the moving plate is larger than the width of the movable rod and the gap at the top of the bottom column.
Further, the threaded rod is connected with the threaded sleeve through threads, and the threaded nail is connected with the base through threads.
Furthermore, four trundles are fixedly connected to the bottom of the base, and the movable plate is movably connected with the movable shaft.
The beneficial effect of this application is: the application provides a mine ventilation unit for coal mining with regulatory function.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a schematic perspective view of an embodiment of the present application;
FIG. 2 is a schematic diagram of the overall structure of an embodiment of the present application;
fig. 3 is a schematic structural diagram of a mounting frame according to an embodiment of the present application.
In the figure: 1. the base, 2, the movable plate, 3, the movable rod, 4, first connecting block, 5, the casing, 6, initiative bevel gear, 7, the air outlet, 8, the fly leaf, 9, the second connecting block, 10, first electric putter, 11, the loose axle, 12, first filter screen, 13, the support, 14, the motor, 15, the second filter screen, 16, the mounting bracket, 17, the lead screw, 18, the fan, 19, the connecting plate, 20, the slider, 21, the collection box, 22, the clearance brush, 23, the bottom plate, 24, the threaded rod, 25, the sleeve pipe, 26, the spring, 27, the foundation, 28, the screw nail, 29, the adjustment tank, 30, driven bevel gear, 31, the thread bush, 32, the draw-in groove, 33, the second electric putter.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1-3, a mine ventilation device for coal mining comprises a base 1, a bottom pillar 27, a bottom plate 23, a shell 5, a mounting frame 16 and a threaded rod 24, wherein an adjusting groove 29 is formed at the bottom end of the base 1, a plurality of threaded nails 28 are arranged inside the adjusting groove 29, the bottom ends of the threaded nails 28 penetrate through the base 1, the center of the top of the base 1 is fixedly connected with the bottom pillar 27, a driven bevel gear 30 is arranged at the center of the bottom of the inner cavity of the bottom pillar 27, the bottom of the driven bevel gear 30 is rotatably connected with the bottom of the inner cavity of the bottom pillar 27, a threaded sleeve 31 is fixedly connected with the top of the driven bevel gear 30, the threaded rod 24 is sleeved inside the threaded sleeve 31, the top end of the threaded rod 24 penetrates through the threaded sleeve 31 and the bottom pillar 27 is fixedly connected with the bottom of the bottom plate 23, the bottoms of the two sides of the inner cavity of the bottom pillar 27 are fixedly connected with a sleeve 25, the bottom of the inner cavity of the sleeve 25 is fixedly connected with a spring 26, and the top of the spring 26 is fixedly connected with a moving plate 2, the center of the top of the moving plate 2 is fixedly connected with a movable rod 3, and the top end of the movable rod 3 penetrates through a sleeve 25 and a bottom column 27 to be fixedly connected to the bottom of the bottom plate 23;
the top of the bottom plate 23 is symmetrically and fixedly connected with two supports 13, a shell 5 is movably connected between the two supports 13, two sides of the shell 5 are provided with two 33, the top ends and the bottoms of the two 33 are movably connected with a first connecting block 4, the two first connecting blocks 4 are fixedly connected with the shell 5 and the bottom plate 23 respectively, one side of the shell 5 is provided with a fan 18, one end of the fan 18 penetrates through the shell 5 and is fixedly connected with a connecting plate 19, an inner cavity of the shell 5 is provided with an installation frame 16, an inner cavity of the installation frame 16 is sequentially provided with a first filter screen 12 and a second filter screen 15 from left to right, an inner cavity of the installation frame 16 is provided with a lead screw 17, the top end of the lead screw 17 penetrates through the installation frame 16 and the shell 5 to be connected with a motor 14, the surface of the lead screw 17 is sleeved with a slide block 20, and one side of the slide block 20 is fixedly connected with a cleaning brush 22;
two movable plates 8 are symmetrically arranged on one side of an inner cavity of the shell 5, one ends of the movable plates 8, which are back to back, are connected with the inner wall of the shell 5 through movable shafts 11, a first electric push rod 10 is arranged on one side of the movable plates 8, and two ends of the first electric push rod 10 are respectively connected with the movable plates 8 and the inner wall of the shell 5 through second connecting blocks 9.
The two ends of the first filter screen 12 and the second filter screen 15 are respectively installed inside a clamping groove 32, the clamping groove 32 is fixedly connected with the inner wall of the mounting frame 16, and the top ends of the first filter screen 12 and the second filter screen 15 penetrate through the mounting frame 16 and the shell 5 to be fixedly connected with a limiting plate; both ends of the first electric push rod 33 are movably connected with the first connecting block 4, and both ends of the first electric push rod 10 are movably connected with the second connecting block 9; the surface of the lead screw 17 is connected with a sliding block 20 through threads, the bottom of the lead screw 17 is provided with a baffle, and the diameter of the baffle is larger than that of the lead screw 17; the top and the bottom of the connecting plate 19 are both connected with the side wall of the shell 5 through screws, and the bottom of the shell 5 is provided with a collecting box 21; an air outlet 7 is fixedly connected to one side of the shell 5, and the geometric shape of the air outlet 7 is a conical structure; one side of the driven bevel gear 30 is provided with a driving bevel gear 6 which is engaged with the driven bevel gear, one end of the bottom pillar 27 is provided with a rocker, and the rocker penetrates through the bottom pillar 27 and is fixedly connected with the driving bevel gear 6; the width of the section of the moving plate 2 is larger than the width of the movable rod 3 and the gap at the top of the bottom column 27; the threaded rod 24 is connected with the threaded sleeve 31 through threads, and the threaded nail 28 is connected with the base 1 through threads; the bottom of the base 1 is fixedly connected with four trundles, and the movable plate 8 is movably connected with the movable shaft 11.
When the adjustable height adjustable electric appliance is used, electrical elements appearing in the adjustable height adjustable electric appliance are externally connected with a power supply and a control switch when in use, move to the inside of an appointed mine through trundles at the bottom of a base 1, and then can be connected with the ground through threaded nails 28 inside an adjusting groove 29, a rocker on one side of a bottom column 27 can be shaken to drive a driving bevel gear 6 to rotate, when the driving bevel gear 6 rotates, a driven bevel gear 30 meshed with the driving bevel gear can be driven to rotate together, the height can be adjusted through driving a threaded sleeve 31 to rotate, and when a threaded rod 24 pushes a bottom plate 23 to move upwards, a movable rod 3 can also move together, so that the movable plate 2 can move inside a sleeve 25, the integral stability is convenient to ensure, the situation of shaking in the process of adjusting the height is avoided, and the angle of a shell 5 can be controlled through 33 expansion and contraction by matching with a first connecting block 4 and a bracket 13, the coal dust collecting device is convenient to adjust according to the environment of a mine, the shell 5 is adjusted to a proper angle and height, the ventilation effect can be improved, the air output can be adjusted according to the environment, the movable plate 8 can be controlled to move through the first electric push rod 10 and the second connecting block 9, the movable plate 8 can be conveniently moved through the movable shaft 11, when the fan 18 is operated to ventilate, the ventilation effect can be improved by matching with the air outlet 7, the coal dust in the air can be filtered out through the second filter screen 15, and when the lead screw 17 is driven to rotate through the motor 14, the sliding block 20 can be driven to move on the surface of the lead screw 17, the cleaning brush 22 can clean the surface of the second filter screen 15, the coal dust is prevented from blocking the second filter screen 15, the collecting box 21 can collect the coal dust, the dust in the air can be filtered out through the first filter screen 12, and the second filter screen 15 can be conveniently taken out through the clamping groove 32, the convenient regular clearance of carrying on guarantees the ventilation effect.
The application has the advantages that:
1. the ventilation can be carried out in the mine through the fan, the connecting plate and the air outlet, so that the air circulation is ensured, and the air outlet quantity can be controlled through the second connecting block, the first electric push rod, the movable plate and the movable shaft, so that the ventilation can be adjusted according to different mine conditions;
2. the mounting frame, the first filter screen, the second filter screen and the clamping groove can be used for filtering in the ventilation process, dust and coal dust in the air can be filtered and blocked, the coal dust blocked by the second filter screen can be cleaned through the motor, the lead screw, the sliding block and the cleaning brush, and the coal dust is collected through the collecting box;
3. the height of the shell can be conveniently adjusted through the movable plate, the movable rod, the threaded sleeve, the bottom plate, the threaded rod, the spring, the driving bevel gear and the driven bevel gear, the shell can be conveniently adjusted according to the environment of a mine, then ventilation is carried out, the angle of the shell can be conveniently adjusted through the first connecting block and the support, the ventilation direction can be conveniently controlled, and the ventilation effect is guaranteed.
The first power putter 10 is model GRA-D3 from Kinoke electromechanical products, Dongguan, and its associated power supply and circuitry.
The motor 14 is a model y2-225M from lambert motor limited and its associated power supplies and circuitry.
The blower 18 is of model SJ150FZY-D, manufactured by samsung electrical technology ltd, wenzhou, and its associated power supply and circuitry.
The second electric push rod 33 is made of FAI50 model manufactured by Shangguan Shangyue mechanical equipment limited company and related matched power supply and circuit.
It is well within the skill of those in the art to implement, without undue experimentation, the present application is not directed to software and process improvements, as they relate to circuits and electronic components and modules.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A mine ventilation device for coal mining is characterized in that: comprises a base (1), a bottom column (27), a bottom plate (23), a shell (5), a mounting rack (16) and a threaded rod (24), wherein an adjusting groove (29) is formed in the bottom end of the base (1), a plurality of threaded nails (28) are arranged inside the adjusting groove (29), the bottom ends of the threaded nails (28) penetrate through the base (1), the central part of the top of the base (1) is fixedly connected with the bottom column (27), a driven bevel gear (30) is arranged in the central part of the bottom of the inner cavity of the bottom column (27), the bottom of the driven bevel gear (30) is rotatably connected with the bottom of the inner cavity of the bottom column (27), a threaded sleeve (31) is fixedly connected to the top of the driven bevel gear (30), the threaded rod (24) is sleeved inside the threaded sleeve (31), the top of the threaded rod (24) penetrates through the threaded sleeve (31) and the bottom of the bottom column (27) fixedly connected with the bottom of the bottom plate (23), and sleeves (25) are fixedly connected to the bottoms of the two sides of the inner cavity of the bottom column (27), the bottom of the inner cavity of the sleeve (25) is fixedly connected with a spring (26), the top of the spring (26) is fixedly connected with the movable plate (2), the center of the top of the movable plate (2) is fixedly connected with a movable rod (3), and the top end of the movable rod (3) penetrates through the sleeve (25) and a bottom column (27) and is fixedly connected to the bottom of the bottom plate (23);
two supports (13) of bottom plate (23) top symmetry rigid coupling, two swing joint casing (5) between support (13), casing (5) both sides are equipped with two second electric putter (33), two the equal swing joint first connecting block (4) in second electric putter (33) top and bottom, two first connecting block (4) rigid coupling casing (5) and bottom plate (23) respectively, casing (5) side-mounting fan (18), casing (5) rigid coupling connecting plate (19) are run through to fan (18) one end, casing (5) inner chamber is equipped with mounting bracket (16), mounting bracket (16) inner chamber is equipped with first filter screen (12) and second filter screen (15) from the left hand right hand side in proper order, mounting bracket (16) inner chamber is equipped with lead screw (17), lead screw (17) top runs through mounting bracket (16) and casing (5) and connects motor (14), a sliding block (20) is sleeved on the surface of the lead screw (17), and a cleaning brush (22) is fixedly connected to one side of the sliding block (20);
casing (5) inner chamber one side symmetry is equipped with two fly leaf (8), two fly leaf (8) back of the body one end mutually all connects casing (5) inner wall through loose axle (11), fly leaf (8) one side is equipped with first electric putter (10), fly leaf (8) and casing (5) inner wall are connected respectively through second connecting block (9) in first electric putter (10) both ends.
2. A mine ventilation device for coal mining according to claim 1, wherein: first filter screen (12) and second filter screen (15) both ends are installed respectively inside draw-in groove (32), draw-in groove (32) rigid coupling mounting bracket (16) inner wall, mounting bracket (16) and casing (5) rigid coupling limiting plate are all run through on first filter screen (12) and second filter screen (15) top.
3. A mine ventilation device for coal mining according to claim 1, wherein: the two ends of the second electric push rod (33) are movably connected with the first connecting blocks (4), and the two ends of the first electric push rod (10) are movably connected with the second connecting blocks (9).
4. A mine ventilation device for coal mining according to claim 1, wherein: the surface of the lead screw (17) is connected with a sliding block (20) through threads, a baffle is arranged at the bottom of the lead screw (17), and the diameter of the baffle is larger than that of the lead screw (17).
5. A mine ventilation device for coal mining according to claim 1, wherein: the top and the bottom of the connecting plate (19) are connected with the side wall of the shell (5) through screws, and the bottom of the shell (5) is provided with a collecting box (21).
6. A mine ventilation device for coal mining according to claim 1, wherein: an air outlet (7) is fixedly connected to one side of the shell (5), and the geometric shape of the air outlet (7) is a conical structure.
7. A mine ventilation device for coal mining according to claim 1, wherein: one side of the driven bevel gear (30) is provided with a driving bevel gear (6) which is meshed with the driven bevel gear, one end of the bottom pillar (27) is provided with a rocker, and the rocker penetrates through the bottom pillar (27) and is fixedly connected with the driving bevel gear (6).
8. A mine ventilation device for coal mining according to claim 1, wherein: the width of the section of the moving plate (2) is larger than the width of the gap at the top of the movable rod (3) and the bottom column (27).
9. A mine ventilation device for coal mining according to claim 1, wherein: the threaded rod (24) is in threaded connection with the threaded sleeve (31), and the threaded nail (28) is in threaded connection with the base (1).
10. A mine ventilation device for coal mining according to claim 1, wherein: four trundles are fixedly connected to the bottom of the base (1), and the movable plate (8) is movably connected with the movable shaft (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121802180.7U CN215566056U (en) | 2021-08-03 | 2021-08-03 | Mine ventilation device for coal mining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121802180.7U CN215566056U (en) | 2021-08-03 | 2021-08-03 | Mine ventilation device for coal mining |
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| Publication Number | Publication Date |
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| CN215566056U true CN215566056U (en) | 2022-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121802180.7U Expired - Fee Related CN215566056U (en) | 2021-08-03 | 2021-08-03 | Mine ventilation device for coal mining |
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| Country | Link |
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| CN (1) | CN215566056U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114075993A (en) * | 2022-01-19 | 2022-02-22 | 徐州智云安全技术研究院有限公司 | Rescue ventilation device suitable for mine |
| CN117248952A (en) * | 2023-11-13 | 2023-12-19 | 晋能控股煤业集团同忻煤矿山西有限公司 | Ventilation system for mine mining field and use method thereof |
-
2021
- 2021-08-03 CN CN202121802180.7U patent/CN215566056U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114075993A (en) * | 2022-01-19 | 2022-02-22 | 徐州智云安全技术研究院有限公司 | Rescue ventilation device suitable for mine |
| CN117248952A (en) * | 2023-11-13 | 2023-12-19 | 晋能控股煤业集团同忻煤矿山西有限公司 | Ventilation system for mine mining field and use method thereof |
| CN117248952B (en) * | 2023-11-13 | 2024-02-02 | 晋能控股煤业集团同忻煤矿山西有限公司 | Ventilation system for mine mining field and use method thereof |
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Granted publication date: 20220118 |