CN107975386B - A kind of coal mine gas from explosion buffer unit and its installation method - Google Patents
A kind of coal mine gas from explosion buffer unit and its installation method Download PDFInfo
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- CN107975386B CN107975386B CN201711086406.6A CN201711086406A CN107975386B CN 107975386 B CN107975386 B CN 107975386B CN 201711086406 A CN201711086406 A CN 201711086406A CN 107975386 B CN107975386 B CN 107975386B
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- coal mine
- buffer unit
- mine gas
- mechanical barrier
- explosion
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F11/00—Rescue devices or other safety devices, e.g. safety chambers or escape ways
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8678—Removing components of undefined structure
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- Chemical & Material Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- Biomedical Technology (AREA)
- Business, Economics & Management (AREA)
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- General Chemical & Material Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
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- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
The present invention relates to a kind of coal mine gas from explosion buffer unit and its installation method, the coal mine gas from explosion buffer unit includes expansion pressure-reducing chamber, mechanical barrier module and kinetic damping module；The mechanical barrier module is set in the expansion pressure-reducing chamber；The kinetic damping module is set to the expansion decompression chamber interior walls and connect with the mechanical barrier module.Coal mine gas from explosion buffer unit of the invention has many advantages, such as to absorb thermal energy and catalyzed conversion toxic and harmful gas, it solves when gas explosion occurs for coal mine, the problems such as shock wave and toxic and harmful gas are to the destruction and injury of facilities and equipment and personnel, belongs to pre- preventing coal mine gas from explosion field.
Description
Technical field
The invention belongs to pre- preventing coal mine gas from explosion fields, and in particular to a kind of coal mine gas from explosion buffer unit and its peace
Dress method.
Background technique
Gas explosion is one of coal mine disaster, and when gas explosion occurs, explosion wave can destroy tunnel facility
Equipment, the toxic and harmful gas for generation of exploding can also cause serious injury to personnel, and shock wave can raise coal dust in tunnel, have
It may cause the more serious disaster such as coal-dust explosion.
The prevention and treatment of gas explosion disaster, on the one hand will reinforce active management, avoid its generation as far as possible, on the other hand will watt
When this explosion occurs, the destruction of explosion is reduced as far as possible, the loss of disaster is preferably minimized, guarantee that facilities and equipment is not broken
Bad, there are not heavy casualties in personnel.Therefore, the energy of gas explosion shock wave is reduced, is generated after reduction explosion poisonous and harmful
Gas concentration is of great significance to the emergency for carrying out gas explosion disaster.
Summary of the invention
The present invention proposes the installation method of a kind of coal mine gas from explosion buffer unit and device in order to solve the above problem, described
Coal mine gas from explosion buffer unit has many advantages, such as to absorb thermal energy and catalyzed conversion toxic and harmful gas, solves and occur in coal mine
When gas explosion, the problems such as shock wave and toxic and harmful gas are to the destruction and injury of facilities and equipment and personnel.
The present invention is achieved by the following technical solutions:
A kind of coal mine gas from explosion buffer unit, including expansion pressure-reducing chamber, mechanical barrier module and kinetic damping module；
The mechanical barrier module is set in the expansion pressure-reducing chamber；The kinetic damping module is set to the expansion
Decompression chamber interior walls are simultaneously connect with the mechanical barrier module.
Further, the mechanical barrier module includes insulation panel, heat absorption unit and catalytic conversion unit；
The heat absorption unit and catalytic conversion unit attachment are mounted on the insulation panel surface.
Further, the heat absorption unit includes thermal conductive network, heat conduction with phase change medium and heat storage blocks；The thermal conductive network by
Hollow thermally conductive pipeline weaves, and the hollow thermally conductive channel interior is arranged in the heat conduction with phase change medium, described thermally conductive
Net is connect with the heat storage blocks.
Further, the thermal conductive network is directly contacted with high-temperature gas, the internal heat conduction with phase change Absorption of Medium heat
It undergoes phase transition and migrates to the heat storage blocks, carry out heat exchange with the heat storage blocks, the heat conduction with phase change is situated between by the heat storage blocks
The thermal energy storage of matter release.
Further, the thermal conductive network is woven by thermal conductive pipe, and the thermal conductive network is made to have very big surface area.
Further, the heat conducting pipe is made of high thermal conductivity material, has excellent toughness and intensity, there is certain shock resistance
Ability, in heat conducting pipe, heat can be undergone phase transition rapidly heat conduction with phase change medium-tight, by microconvection form by thermal energy conduction extremely
Heat storage blocks.
Further, the catalytic conversion unit includes silicon carbide ceramics and catalyst；The catalyst is attached to described
On silicon carbide ceramics.
Further, the silicon carbide ceramics is a kind of porous material；The catalyst is attached to the porous silicon carbide
The hole of ceramics and surface, form the catalyzed conversion module, and catalyzed conversion structure is made pottery by the silicon carbide of muti-piece attached catalyst
Porcelain composition.
Further, the expansion pressure-reducing chamber is built in the tunnel that gas explosion easily occurs, and section is greater than drift section,
When gas explosion occurs, play the role of expansion decompression, the preliminary energy for reducing shock wave.
Further, the section in the expansion pressure-reducing chamber is greater than or equal to twice of the drift section.
Further, the insulation panel is one piece or two pieces or more；When the insulation panel is two pieces or more, Mei Gesuo
It states insulation panel equidistantly or Unequal distance is set in the expansion decompression chamber interior walls；
The insulation panel is feature that is how mesh-structured, having intensity high, light-weight, and each insulation panel is in tunnel axis
It is to direction aperture and big with drift section etc., it is attached between insulation panel by frame；Multiple groups insulation panel is step by step to subtracting
The shock wave of pressure is stopped, and the energy of shock wave is consumed.
Further, the insulation panel is shock resistance high-strength light alloy material.
Further, the kinetic damping module includes multiple groups two-stage hydraulic cushion damping unit and guide rail；The two-stage
Hydraulic cushion damping unit is connect with the guide rail and the mechanical barrier mechanism.
Further, the two-stage hydraulic cushion damping unit includes multiple adjustable hydraulic damping dampers.
Further, the two-stage hydraulic cushion damping unit and the guide rail and the mechanical barrier module-articulation.
Further, the guide rail is arranged in pairs, for a pair or two pairs or more.
Further, the guide rail is mutually perpendicular to the mechanical barrier module.
Further, the coal mine gas from explosion buffer unit further includes as basic external frame.
A kind of installation method of coal mine gas from explosion buffer unit, comprising the following steps:
(1) determine the cross dimensions in expansion pressure-reducing chamber: measurement pre-installs the tunnel of the coal mine gas from explosion buffer unit
The size of section enables the section in the expansion pressure-reducing chamber more than or equal to twice of the drift section.
(2) the fundamental external frame of the coal mine gas from explosion buffer unit is assembled: according to the disconnected of the expansion pressure-reducing chamber
The fundamental external frame is rigidly fixed forming by face size, forms the installation base of mechanical barrier module and kinetic damping module
Plinth.
(3) assemble the mechanical barrier module: heat absorption unit and catalytic conversion unit are assembled into the mechanical barrier
Module, and ensure the reliable and stable of the mechanical barrier module.
(4) the mechanical barrier module is installed: the mechanical barrier module is mounted in the expansion pressure-reducing chamber, and with
Guide rail connection.
(5) install the kinetic damping module: guide rail is connected with two-stage hydraulic cushion damping unit by articulated form,
Wherein the static part of guide rail is fixed on the fundamental external frame, and the motion parts of guide rail and the mechanical barrier module
External frame be connected, the static part of guide rail is connect with motion parts by the two-stage hydraulic cushion damping unit；It is described
Coal mine gas from explosion buffer unit is completed；
(6) the coal mine gas from explosion buffer unit for being completed (5) step installs breaking to tunnel described in (1) step
Face, the coal mine gas from explosion buffer unit are installed.
Further, tunnel described in (1) is the higher tunnel of gas explosion risk in mine.
Further, the coal mine gas from explosion buffer unit periodically need to be checked and be safeguarded, it is ensured that the coal mine watt
Modules and its unit maintain a good state in this explosion buffer unit.
The use process of coal mine gas from explosion buffer unit of the invention is specific as follows:
When generation gas explosion, shock motion to the expansion pressure-reducing chamber, the section moment in the expansion pressure-reducing chamber
Expand, pressure of the shock wave of high pressure at the abrupt change of cross section in the expansion pressure-reducing chamber is caused to reduce rapidly, it is described at this time
It expands pressure-reducing chamber and primary decompression is completed to the shock wave；The shock wave continuation is propagated forward, the mechanical barrier module pair
The shock wave is stopped, and since the impact of the shock wave generates kinetic energy, the kinetic energy passes through the mechanical barrier module
The guide rail is transferred to the two-stage hydraulic cushion damping unit, and two-stage hydraulic cushion damping unit described in multiple groups is by the kinetic energy
Depleted, while consuming a large amount of kinetic energy, the porous structure of insulation panel described in the mechanical barrier module is disturbed
Disorderly the shock front is to reduce the energy of the shock wave.In addition, the heat absorption in the mechanical barrier module
A large amount of thermal energy conductions to the heat storage blocks can be rapidly reduced the shock wave when contacting the shock wave of high temperature by unit
The temperature of gas, the catalyst in the catalytic conversion unit turn the toxic and harmful gas that shock wave internal cause explosion generates
Turn to the harmless gas of low toxicity.
The invention has the following beneficial effects:
(1) coal mine gas from explosion buffer unit structure of the invention is simple, and arrangement is convenient, essential safety, as semipermanent
Property passive safety system, can be widely applied in the tunnel with high methane explosion potential.
(2) coal mine gas from explosion buffer unit of the invention is when gas explosion happens, not only to the impact of explosion
Wave carries out multistage blocking and weakens, and reduces the power of shock wave, the facilities and equipment in tunnel is protected not to be destroyed, and can be to explosion
The high-temperature gas that shock wave generates carries out dredging cooling, and high temperature is avoided to cause secondary disaster.
(3) coal mine gas from explosion buffer unit of the invention has catalytic conversion unit, can be by toxic the having of explosion generation
Evil gas is converted into the gas of nonhazardous, and personnel is avoided to come to harm, and gains time for the escape of personnel.
Detailed description of the invention
Fig. 1 is the coal mine gas from explosion buffer unit overlooking structure diagram of the embodiment of the present invention.
Figure 1A is the partial enlargement diagram in Fig. 1 at A.
Fig. 2 is the coal mine gas from explosion buffer unit left view structural representation of the embodiment of the present invention.
Fig. 2 B is the partial enlargement diagram in Fig. 2 at B.
Description of symbols: 1- expands pressure-reducing chamber, and 2- machinery obstructs module, 201- heat absorption unit, and 201- catalysis turns
Change unit, 3- kinetic damping module, 301- guide rail, 302- two-stage hydraulic cushion damping unit, 4- exterior frame.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is explained in further detail.It should be appreciated that specific embodiment described herein is used only for explaining the present invention, and
It is not used in the restriction present invention.
On the contrary, the present invention covers any substitution done on the essence and scope of the present invention being defined by the claims, repairs
Change, equivalent method and scheme.Further, in order to make the public have a better understanding the present invention, below to of the invention thin
It is detailed to describe some specific detail sections in section description.Part without these details for a person skilled in the art
The present invention can also be understood completely in description.
Embodiment 1
The present embodiment provides a kind of coal mine gas from explosion buffer units, including expansion pressure-reducing chamber, mechanical barrier module and fortune
Dynamic damping module；
The mechanical barrier module is set in the expansion pressure-reducing chamber；The kinetic damping module is set to the expansion
Decompression chamber interior walls are simultaneously connect with the mechanical barrier module.
The mechanical barrier module includes insulation panel, heat absorption unit and catalytic conversion unit；
The heat absorption unit and catalytic conversion unit attachment are mounted on the insulation panel surface.
The heat absorption unit includes thermal conductive network, heat conduction with phase change medium and heat storage blocks；
The heat absorption unit includes thermal conductive network, heat conduction with phase change medium and heat storage blocks；
The thermal conductive network is woven by hollow thermally conductive pipeline, and described hollow lead is arranged in the heat conduction with phase change medium
Inside pipe line, the thermal conductive network is connect with the heat storage blocks.
The thermal conductive network is directly contacted with high-temperature gas, and the internal heat conduction with phase change Absorption of Medium heat is undergone phase transition simultaneously
Migration carries out heat exchange, the heat that the heat storage blocks discharge the heat conduction with phase change medium with the heat storage blocks to the heat storage blocks
It can storage.
The thermal conductive network is woven by thermal conductive pipe, has the characteristics that surface area is very big.
The heat conducting pipe is made of high thermal conductivity material, has excellent toughness and intensity, there is certain impact resistance, phase transformation
Heat-conducting medium is sealed in heat conducting pipe, and heat can be undergone phase transition rapidly, by microconvection form by thermal energy conduction to heat storage blocks.
The catalytic conversion unit includes silicon carbide ceramics and catalyst；The catalyst is attached to the silicon carbide ceramics
On.
The silicon carbide ceramics is a kind of porous material；The catalyst is attached to the hole of the porous silicon carbide ceramics
And surface, the catalyzed conversion module is formed, catalyzed conversion structure is made of the silicon carbide ceramics of muti-piece attached catalyst.
The expansion pressure-reducing chamber is built in the tunnel that gas explosion easily occurs, and section is greater than drift section, quick-fried in gas
When fried generation, play the role of expansion decompression, the preliminary energy for reducing shock wave.
The section in the expansion pressure-reducing chamber is greater than or equal to twice of the drift section.
The insulation panel is one piece or two pieces or more；When the insulation panel is two pieces or more, each barrier face
Plate is equidistant or Unequal distance is set in the expansion decompression chamber interior walls；
The insulation panel is feature that is how mesh-structured, having intensity high, light-weight, and each insulation panel is in tunnel axis
It is to direction aperture and big with drift section etc., it is attached between insulation panel by frame；Multiple groups insulation panel is step by step to subtracting
The shock wave of pressure is stopped, and the energy of shock wave is consumed.
The insulation panel is shock resistance high-strength light alloy material.
The kinetic damping module includes multiple groups two-stage hydraulic cushion damping unit and guide rail；The two-stage hydraulic cushion resistance
Buddhist nun's unit is connect with the guide rail and the mechanical barrier mechanism.
The two-stage hydraulic cushion damping unit includes multiple adjustable hydraulic damping dampers.
The two-stage hydraulic cushion damping unit and the guide rail and the mechanical barrier module-articulation.
The guide rail is arranged in pairs, and is two pairs.
The guide rail is mutually perpendicular to the mechanical barrier module.
The coal mine gas from explosion buffer unit further includes as basic external frame.
A kind of installation method of coal mine gas from explosion buffer unit, comprising the following steps:
(1) determine the cross dimensions in expansion pressure-reducing chamber: measurement pre-installs the tunnel of the coal mine gas from explosion buffer unit
The size of section enables the section in the expansion pressure-reducing chamber more than or equal to twice of the drift section.
(2) the fundamental external frame of the coal mine gas from explosion buffer unit is assembled: according to the disconnected of the expansion pressure-reducing chamber
The fundamental external frame is rigidly fixed forming by face size, forms the installation base of mechanical barrier module and kinetic damping module
Plinth.
(3) assemble the mechanical barrier module: heat absorption unit and catalytic conversion unit are assembled into the mechanical barrier
Module, and ensure the reliable and stable of the mechanical barrier module.
(4) the mechanical barrier module is installed: the mechanical barrier module is mounted in the expansion pressure-reducing chamber, and with
Guide rail connection.
(5) install the kinetic damping module: guide rail is connected with two-stage hydraulic cushion damping unit by articulated form,
Wherein the static part of guide rail is fixed on the fundamental external frame, and the motion parts of guide rail and the mechanical barrier module
External frame be connected, the static part of guide rail is connect with motion parts by the two-stage hydraulic cushion damping unit；It is described
Coal mine gas from explosion buffer unit is completed；
(6) the coal mine gas from explosion buffer unit for being completed (5) step installs breaking to tunnel described in (1) step
Face, the coal mine gas from explosion buffer unit are installed.
(1) tunnel described in is the higher tunnel of gas explosion risk in mine.
The coal mine gas from explosion buffer unit periodically need to be checked and be safeguarded, it is ensured that the coal mine gas from explosion buffering
Modules and its unit maintain a good state in device.
The use process of coal mine gas from explosion buffer unit of the invention is specific as follows:
When generation gas explosion, shock motion to the expansion pressure-reducing chamber, the section moment in the expansion pressure-reducing chamber
Expand, pressure of the shock wave of high pressure at the abrupt change of cross section in the expansion pressure-reducing chamber is caused to reduce rapidly, it is described at this time
It expands pressure-reducing chamber and primary decompression is completed to the shock wave；The shock wave continuation is propagated forward, the mechanical barrier module pair
The shock wave is stopped, and since the impact of the shock wave generates kinetic energy, the kinetic energy passes through the mechanical barrier module
The guide rail is transferred to the two-stage hydraulic cushion damping unit, and two-stage hydraulic cushion damping unit described in multiple groups is by the kinetic energy
Depleted, while consuming a large amount of kinetic energy, the porous structure of insulation panel described in the mechanical barrier module is disturbed
Disorderly the shock front is to reduce the energy of the shock wave.In addition, the heat absorption in the mechanical barrier module
A large amount of thermal energy conductions to the heat storage blocks can be rapidly reduced the shock wave when contacting the shock wave of high temperature by unit
The temperature of gas, the catalyst in the catalytic conversion unit turn the toxic and harmful gas that shock wave internal cause explosion generates
Turn to the harmless gas of low toxicity.
Claims (10)
1. a kind of coal mine gas from explosion buffer unit, which is characterized in that the coal mine gas from explosion buffer unit includes that expansion subtracts
Pressure chamber, mechanical barrier module and kinetic damping module；
The mechanical barrier module is set in the expansion pressure-reducing chamber；The kinetic damping module is set to the expansion decompression
Chamber interior walls are simultaneously connect with the mechanical barrier module；
The assembling of the coal mine gas from explosion buffer unit includes:
(1) determine the cross dimensions in expansion pressure-reducing chamber: measurement pre-installs the drift section of the coal mine gas from explosion buffer unit
Size, enable the section in the expansion pressure-reducing chamber be greater than or equal to twice of the drift section；
(2) the fundamental external frame of the coal mine gas from explosion buffer unit is assembled: according to the section ruler in the expansion pressure-reducing chamber
It is very little, the fundamental external frame is rigidly fixed into forming, forms the installation foundation of mechanical barrier module and kinetic damping module；
(3) assemble the mechanical barrier module: heat absorption unit and catalytic conversion unit attachment are mounted on insulation panel surface
Afterwards, multiple groups insulation panel is assembled into the mechanical barrier module, and ensures the reliable and stable of the mechanical barrier module；
(4) the mechanical barrier module is installed: the mechanical barrier module being mounted in the expansion pressure-reducing chamber, and and guide rail
Connection；
(5) install the kinetic damping module: guide rail is connected with two-stage hydraulic cushion damping unit by articulated form, wherein
The static part of guide rail is fixed on the fundamental external frame, and the motion parts of guide rail and the machinery obstruct the outer of module
Portion's frame is connected, and the static part of guide rail is connect with motion parts by the two-stage hydraulic cushion damping unit；The coal mine
Gas explosion buffer unit is completed；
(6) the coal mine gas from explosion buffer unit for being completed (5) step is installed to the section in tunnel described in (1) step,
The coal mine gas from explosion buffer unit is installed.
2. a kind of coal mine gas from explosion buffer unit according to claim 1, which is characterized in that the mechanical barrier module
Including insulation panel, heat absorption unit and catalytic conversion unit；
The heat absorption unit and catalytic conversion unit attachment are mounted on the insulation panel surface.
3. a kind of coal mine gas from explosion buffer unit according to claim 2, which is characterized in that the heat absorption unit
Including thermal conductive network, heat conduction with phase change medium and heat storage blocks；
The thermal conductive network is woven by hollow thermally conductive pipeline, and the hollow heat conducting pipe is arranged in the heat conduction with phase change medium
Inside road, the thermal conductive network is connect with the heat storage blocks.
4. a kind of coal mine gas from explosion buffer unit according to claim 2, which is characterized in that the catalytic conversion unit
Including silicon carbide ceramics and catalyst；The catalyst is attached on the silicon carbide ceramics.
5. a kind of coal mine gas from explosion buffer unit according to claim 2, which is characterized in that the insulation panel is one
Block or two pieces or more；When the insulation panel is two pieces or more, each insulation panel is equidistant or Unequal distance be set to it is described
In expansion decompression chamber interior walls.
6. a kind of coal mine gas from explosion buffer unit according to claim 1, which is characterized in that the kinetic damping module
Including multiple groups two-stage hydraulic cushion damping unit and guide rail；
The two-stage hydraulic cushion damping unit is connect with the guide rail and the mechanical barrier module；
The guide rail is mutually perpendicular to the mechanical barrier module.
7. a kind of coal mine gas from explosion buffer unit according to claim 6, which is characterized in that the two-stage hydraulic cushion
Damping unit includes multiple adjustable hydraulic damping dampers.
8. a kind of coal mine gas from explosion buffer unit according to claim 6, which is characterized in that the guide rail is set in pairs
It sets, for a pair or two pairs or more.
9. a kind of coal mine gas from explosion buffer unit according to claim 1-8, which is characterized in that the coal mine
Gas explosion buffer unit further includes as basic external frame.
10. a kind of installation method of coal mine gas from explosion buffer unit, which is characterized in that the described method comprises the following steps:
(1) determine the cross dimensions in expansion pressure-reducing chamber: measurement pre-installs the drift section of the coal mine gas from explosion buffer unit
Size, enable the section in the expansion pressure-reducing chamber be greater than or equal to twice of the drift section；
(2) the fundamental external frame of the coal mine gas from explosion buffer unit is assembled: according to the section ruler in the expansion pressure-reducing chamber
It is very little, the fundamental external frame is rigidly fixed into forming, forms the installation foundation of mechanical barrier module and kinetic damping module；
(3) assemble the mechanical barrier module: heat absorption unit and catalytic conversion unit attachment are mounted on insulation panel surface
Afterwards, multiple groups insulation panel is assembled into the mechanical barrier module, and ensures the reliable and stable of the mechanical barrier module；
(4) the mechanical barrier module is installed: the mechanical barrier module being mounted in the expansion pressure-reducing chamber, and and guide rail
Connection；
(5) install the kinetic damping module: guide rail is connected with two-stage hydraulic cushion damping unit by articulated form, wherein
The static part of guide rail is fixed on the fundamental external frame, and the motion parts of guide rail and the machinery obstruct the outer of module
Portion's frame is connected, and the static part of guide rail is connect with motion parts by the two-stage hydraulic cushion damping unit；The coal mine
Gas explosion buffer unit is completed；
(6) the coal mine gas from explosion buffer unit for being completed (5) step is installed to the section in tunnel described in (1) step,
The coal mine gas from explosion buffer unit is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711086406.6A CN107975386B (en) | 2017-11-07 | 2017-11-07 | A kind of coal mine gas from explosion buffer unit and its installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711086406.6A CN107975386B (en) | 2017-11-07 | 2017-11-07 | A kind of coal mine gas from explosion buffer unit and its installation method |
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| Publication Number | Publication Date |
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| CN107975386A CN107975386A (en) | 2018-05-01 |
| CN107975386B true CN107975386B (en) | 2019-11-08 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109301737B (en) * | 2018-10-25 | 2019-12-10 | 南京秦淮紫云创益企业服务有限公司 | Magnetizing, pressure reducing, cooling, arc extinguishing and wire withdrawing device for power box of coal mine ventilator |
| CN114738669B (en) * | 2022-03-30 | 2024-04-12 | 北京潞电电气设备有限公司 | Hydrogen storage system for preventing hydrogen explosion |
| CN114894631B (en) * | 2022-06-21 | 2023-02-10 | 安徽省特种设备检测院 | Remote monitoring high-pressure pipeline water pressure experiment booster unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB969085A (en) * | 1962-05-30 | 1964-09-09 | Dunn W H & Son Ltd | Improvements in and relating to shot-firing curtains |
| FR2352869A1 (en) * | 1976-05-26 | 1977-12-23 | Blond Hubert | Plastic stopping compsn. for stopping holes etc. in mines - comprises clay block sheathed in plastic envelope |
| CN2162519Y (en) * | 1993-08-28 | 1994-04-20 | 杨云祥 | Wooden fire door |
| CN2245465Y (en) * | 1995-08-31 | 1997-01-22 | 庄梓猛 | Sedimentation lifesaving appliance |
| CN102425449A (en) * | 2011-11-01 | 2012-04-25 | 广东安邦救援装备股份有限公司 | Mobile rescue capsule |
-
2017
- 2017-11-07 CN CN201711086406.6A patent/CN107975386B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB969085A (en) * | 1962-05-30 | 1964-09-09 | Dunn W H & Son Ltd | Improvements in and relating to shot-firing curtains |
| FR2352869A1 (en) * | 1976-05-26 | 1977-12-23 | Blond Hubert | Plastic stopping compsn. for stopping holes etc. in mines - comprises clay block sheathed in plastic envelope |
| CN2162519Y (en) * | 1993-08-28 | 1994-04-20 | 杨云祥 | Wooden fire door |
| CN2245465Y (en) * | 1995-08-31 | 1997-01-22 | 庄梓猛 | Sedimentation lifesaving appliance |
| CN102425449A (en) * | 2011-11-01 | 2012-04-25 | 广东安邦救援装备股份有限公司 | Mobile rescue capsule |
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| Publication number | Publication date |
|---|---|
| CN107975386A (en) | 2018-05-01 |
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