CN204344164U - There is the datonation-inhibition automatic safety door of gas of fire-retardant decompression function - Google Patents
There is the datonation-inhibition automatic safety door of gas of fire-retardant decompression function Download PDFInfo
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- CN204344164U CN204344164U CN201420776769.8U CN201420776769U CN204344164U CN 204344164 U CN204344164 U CN 204344164U CN 201420776769 U CN201420776769 U CN 201420776769U CN 204344164 U CN204344164 U CN 204344164U
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- safety door
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- datonation
- gas
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Abstract
The utility model provides a kind of datonation-inhibition automatic safety door of gas with fire-retardant decompression function, comprise safety door, hydraulic system, limited block and whistle control system, safety door comprises body and frame, described frame is quadrilateral structure, frame is wrapped in body surrounding, in described body comprises, in, outer three layer construction, internal layer and the identical metal panels be with slit of layer structure, the middle level of described body is porous ceramic layer, the utility model is the safety door of a design three layer construction, the internal layer of safety door, skin is the metal sheet of slit, the middle level of safety door is porous ceramic layer, metallic slit cold-wall effect and porous ceramics wall effect are combined, at guarantee deflagration flame not by safety door situation, blast wave can be made to carry out pressure release by safety door, and utilize mine ventilation system to get rid of the toxic gas of blast generation in time, solving that generation repeatedly explodes can not the problem of fire-retardant and pressure release.
Description
technical field:
The utility model belongs to Safety of Coal Mine Production technical field, is specifically related to a kind of datonation-inhibition automatic safety door of gas with fire-retardant decompression function.
background technology:
Gas explosion accident is one of mine major casualty, serious threat Safety of Coal Mine Production and personal safety.Gas explosion Prevention Technique is mainly reflected in four aspects: gas concentration monitoring technology, control methane accumulation technology, forbid burning things which may cause a fire disaster generations technology and reduce the fire-retardant datonation-inhibition technology of influence basin of exploding.Wherein, fire-retardant datonation-inhibition technology is under the simultaneous condition of gas explosion three elements, utilizes various technology and method to suppress initial explosion development, intercepts explosive flame and propagate and make it not blast or reduce the destructiveness of blast, reduce its damage envelope.Coal mine gas from explosion process often along the propagation of roadway, chamber or getting working face, thus causes blast, subsequent explosion continuously, repeatedly explodes, and even involves whole mine.Therefore, when there is gas explosion, how gas deflagration flame being controlled at subrange, having become problem in the urgent need to address in Safety of Coal Mine Production.
Existing fire-retardant datonation-inhibition technology mainly comprises isolation safe door, passive water-trough, the datonation-inhibition technology of water mists, powder or the datonation-inhibition technology of inert gas.Wherein, isolation safe door be when blasting in position, tunnel can quick closedown to reduce explosive range, the method by blast area and non-blast area completely isolated, tunnel cannot be made after blast to ventilate in time, get rid of toxic gas, easily cause the staff being in blast area to be poisoned to death.Although the datonation-inhibition technology of passive water-trough, water mists, powder or the datonation-inhibition technology of inert gas all have certain datonation-inhibition effect, all belong to disposable explosion-suppressing method, when continuously blast, subsequent explosion or repeatedly explosion time occur mine, can not effectively play datonation-inhibition effect.
utility model content:
In sum, in order to overcome the deficiency of prior art problem, the utility model provides a kind of datonation-inhibition automatic safety door of gas with fire-retardant decompression function, it is the safety door of a design three layer construction, the internal layer of safety door, skin is the metal sheet of slit, the middle level of safety door is porous ceramic layer, metallic slit cold-wall effect and porous ceramics wall effect are combined, at guarantee deflagration flame not by safety door situation, blast wave can be made to carry out pressure release by safety door 1, and utilize mine ventilation system to get rid of the toxic gas of blast generation in time, solving that generation repeatedly explodes can not the problem of fire-retardant and pressure release.
For solving the problems of the technologies described above, the technical solution of the utility model is achieved in that
A kind of datonation-inhibition automatic safety door of gas with fire-retardant decompression function, wherein: comprise safety door, hydraulic system, limited block and whistle control system, the front portion of described safety door is flexibly connected with the chain bar be fixed on the upper wall of tunnel by removable pin, the afterbody of described hydraulic system support safety door, closing of HYDRAULIC CONTROL SYSTEM safety door, the keying of described whistle control system hydraulic control system, limited block is provided with bottom described tunnel, described safety door comprises body and frame, described frame is quadrilateral structure, frame is wrapped in body surrounding, in described body comprises, in, outer three layer construction, internal layer and the identical metal panels be with slit of layer structure, the middle level of described body is porous ceramic layer, internal layer, middle level and skin are bolted.
Further, described hydraulic system comprises hydraulic cylinder, reversal valve and hydraulic power unit, and hydraulic cylinder is fixed on the inwall of tunnel, and the piston rod of hydraulic cylinder supports safety door afterbody, and hydraulic cylinder connects reversal valve by oil pipe, and reversal valve connects hydraulic power unit by oil pipe.
Further, described whistle control system comprises pressure sensor and signal controller, and three pressure sensors are arranged on the upper wall of tunnel, and pressure sensor is communicated with signal controller by holding wire, and signal controller is communicated with reversal valve by holding wire.
Further, the outlet line of described hydraulic power unit is provided with one way valve.
Further, the afterbody of described safety door is provided with pulley, and the afterbody of safety door is by the piston rod sliding-contact of pulley and hydraulic cylinder.
Further, sealing is provided with between the front portion of described safety door and wall.
Further, described limited block is provided with magnet for adsorbing safety door afterbody and safety door close after with the lower seal with sealing.
The beneficial effects of the utility model are:
1, the utility model is the safety door of a design three layer construction, the internal layer of safety door, skin are the metal sheet of slit, the middle level of safety door is porous ceramic layer, metallic slit cold-wall effect and porous ceramics wall effect are combined, at guarantee deflagration flame not by safety door situation, blast wave can be made to carry out pressure release by safety door, and the toxic gas utilizing mine ventilation system to get rid of blast in time to produce, solving that generation repeatedly explodes can not the problem of fire-retardant and pressure release.
2, the internal layer of safety door of the present utility model and skin are narrow slit structure metal panels, metallic slit has cold-wall effect to deflagration flame, namely, when flame is through thin channel, temperature can decline rapidly because of the cooling of wall, thus cause flame temperature to be extinguished lower than autoignition temperature, the middle level of safety door of the present utility model is porous ceramic layer, porous ceramics has wall effect to deflagration flame, namely, loose structure increases the probability of the living radical of burning generation and the collision of cell walls, thus the free radical of participation explosive reaction is reduced, explosive reaction rate reduction, the cold-wall effect of metallic slit and the wall effect of porous ceramics combine by safety door of the present utility model, ensure that the flame of coal mine gas from explosion generation is not by safety door, ensure the safety of the non-blast area of coal mine roadway, solve the fire-retardant problem of repeatedly blasting.
3, the narrow slit structure of safety door of the present utility model and duct, being communicated with of the non-blast area in tunnel and blast area can be ensured, the shock wave that blast can be made to produce carries out pressure release by the slit of safety door and duct, blast is produced toxic gas along with shock wave and to be entered the non-blast area of coal mine roadway by slit and duct, discharged by dash system again, ensure the safety of the non-blast area of coal mine roadway, solve the pressure release problem of repeatedly exploding.
4, the afterbody of safety door of the present utility model is provided with pulley, safety door afterbody by the piston rod sliding-contact of pulley and hydraulic cylinder, thus after ensureing that hydraulic cylinder starts, the smooth and easy quick-expansion of piston rod action, prevent stuck, thus ensure that safety door is closed fast in time.
5, limited block of the present utility model is provided with magnet and lower seal, after safety door is closed, magnet firmly adsorbs safety door afterbody, prevent repeatedly upspringing of safety door, gap between lower seal sealing type emergency door afterbody and limited block, enters non-support area, tunnel from the afterbody preventing explosive flame from limited block and safety door.
6, the utility model structure is simple, easy to use, at self-closing safety door rapid in coal mine roadway is blasted, deflagration flame can not be spread by non-blast area in tunnel, reduce explosive damage scope.The simultaneously modular design of metallic slit and porous ceramic structure, and the employing of Automatic hydraulic control system, ensure that this kind of safety door still has reliable fire-retardant pressure release effect under repeatedly explosive event, can get rid of toxic gas in time.Security of system is reliable, and in-site installation is convenient.
accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of safety door of the present utility model;
Fig. 3 is the A-A cross-sectional schematic of the utility model Fig. 2.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As Fig. 1, Fig. 2, shown in Fig. 3, a kind of datonation-inhibition automatic safety door of gas with fire-retardant decompression function, comprise safety door 1, safety door 1 comprises body 7 and frame 8, described frame 8 is quadrilateral structure, frame 8 is wrapped in body 7 surrounding, in described body 7 comprises, in, outer three layer construction, internal layer 9 and the identical metal panels be with slit 22 of outer 10 structures, the middle level 11 of described body 7 is porous ceramic layer, internal layer 9, middle level 11 and outer 10 is bolted, the front portion of safety door 1 is flexibly connected with the chain bar 6 be fixed on the upper wall of tunnel by removable pin 5, the afterbody of safety door 1 is provided with pulley 18, the afterbody of safety door 1 is by the piston rod sliding-contact of pulley 18 with the hydraulic cylinder 12 of hydraulic system 2, in safety door 1 open mode, the afterbody of hydraulic system 2 support safety door 1, hydraulic system 2 comprises hydraulic cylinder 12, reversal valve 13 and hydraulic power unit 14, hydraulic cylinder 12 is fixed on the inwall of tunnel, the piston rod of hydraulic cylinder 12 supports safety door 1 afterbody, hydraulic cylinder 12 connects reversal valve 13 by oil pipe, reversal valve 13 connects hydraulic power unit 14 by oil pipe, the outlet line of hydraulic power unit 14 is provided with one way valve 17, the utility model is by the keying of whistle control system 4 hydraulic control system 2, whistle control system 4 comprises pressure sensor 15 and signal controller 16, three pressure sensors 15 are arranged on the upper wall of tunnel, pressure sensor 15 is communicated with signal controller 16 by holding wire, signal controller 16 is communicated with reversal valve 13 by holding wire, the bottom of the side of the non-blast in tunnel of the present utility model is provided with limited block 3, after safety door 1 is closed, limited block 3 pairs of safety doors 1 position-limiting action, simultaneously, limited block 3 is provided with magnet 20 for adsorbing safety door 1 afterbody and safety door 1 close after with the lower seal 21 with sealing, sealing 19 is provided with between the front portion of described safety door 1 and wall.
During use, when tunnel blast area is blasted, the pressure surge that blast produces arrives pressure sensor 15 position prior to flame ripple, and pressure pulse signal is inputed to signal controller 16 by pressure sensor 15.When signal controller 16 at least receives two pressure pulse signals, signal controller 16 has signal to export, control reversal valve 13 to commutate, the piston rod retraction of hydraulic cylinder 12, the tail end of safety door 1 loses support, safety door 1 rotates around the removable pin 5 that itself and chain bar 6 are hinged, freely fall quick closedown under gravity, the front portion of safety door 1 contacts with upper sealing 19, the afterbody of safety door 1 is spacing by limited block 3, contact with lower seal 21 and magnet 20 simultaneously, can not upspring under the suction-operated of magnet, simultaneously under lower seal 21 acts on and realize between limited block 3 sealing, thus the non-blast area in tunnel and blast area are isolated, the shock wave that blast area produces can be passed through by the slit 22 of safety door 1 and ceramic channel walls, reach pressure release object, explode simultaneously produce deflagration flame when by safety door 1 slit 22 and ceramic channel walls, under the effect of the cold-wall effect of metallic slit 22 and the wall effect of porous ceramics, fast cooling extinguishes, reach fire-retardant object, blast is produced toxic gas along with shock wave and to be entered the non-blast area of coal mine roadway by slit 22 and duct, discharged by dash system again.
Be noted that, the above embodiment is unrestricted to the explanation of technical solutions of the utility model, the equivalent replacement of art those of ordinary skill or other amendment made according to prior art, as long as do not exceed thinking and the scope of technical solutions of the utility model, all should be included within the interest field required by the utility model.
Claims (7)
1. one kind has the datonation-inhibition automatic safety door of gas of fire-retardant decompression function, it is characterized in that: comprise safety door (1), hydraulic system (2), limited block (3) and whistle control system (4), the front portion of described safety door (1) is flexibly connected with the chain bar (6) be fixed on the upper wall of tunnel by removable pin (5), the afterbody of described hydraulic system (2) support safety door (1), hydraulic system (2) controls the closed of safety door (1), the keying of described whistle control system (4) hydraulic control system (2), limited block (3) is provided with bottom described tunnel, described safety door (1) comprises body (7) and frame (8), described frame (8) is quadrilateral structure, frame (8) is wrapped in body (7) surrounding, in described body (7) comprises, in, outer three layer construction, internal layer (9) and the identical metal panels be with slit (22) of outer (10) structure, the middle level (11) of described body (7) is porous ceramic layer, internal layer (9), middle level (11) and outer (10) are bolted.
2. the datonation-inhibition automatic safety door of gas with fire-retardant decompression function according to claim 1, it is characterized in that: described hydraulic system (2) comprises hydraulic cylinder (12), reversal valve (13) and hydraulic power unit (14), hydraulic cylinder (12) is fixed on the inwall of tunnel, the piston rod of hydraulic cylinder (12) supports safety door (1) afterbody, hydraulic cylinder (12) connects reversal valve (13) by oil pipe, and reversal valve (13) connects hydraulic power unit (14) by oil pipe.
3. the datonation-inhibition automatic safety door of gas with fire-retardant decompression function according to claim 1, it is characterized in that: described whistle control system (4) comprises pressure sensor (15) and signal controller (16), three pressure sensors (15) are arranged on the upper wall of tunnel, pressure sensor (15) is communicated with signal controller (16) by holding wire, and signal controller (16) is communicated with reversal valve (13) by holding wire.
4. the datonation-inhibition automatic safety door of gas with fire-retardant decompression function according to claim 2, is characterized in that: the outlet line of described hydraulic power unit (14) is provided with one way valve (17).
5. the datonation-inhibition automatic safety door of gas with fire-retardant decompression function according to claim 1, it is characterized in that: the afterbody of described safety door (1) is provided with pulley (18), the afterbody of safety door (1) is by the piston rod sliding-contact of pulley (18) with hydraulic cylinder (12).
6. the datonation-inhibition automatic safety door of gas with fire-retardant decompression function according to claim 1, is characterized in that: be provided with sealing (19) between the front portion of described safety door (1) and wall.
7. the datonation-inhibition automatic safety door of gas with fire-retardant decompression function according to claim 1, is characterized in that: described limited block (3) is provided with magnet (20) for adsorbing safety door (1) afterbody and safety door (1) close after with the lower seal (21) with sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420776769.8U CN204344164U (en) | 2014-12-11 | 2014-12-11 | There is the datonation-inhibition automatic safety door of gas of fire-retardant decompression function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420776769.8U CN204344164U (en) | 2014-12-11 | 2014-12-11 | There is the datonation-inhibition automatic safety door of gas of fire-retardant decompression function |
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| Publication Number | Publication Date |
|---|---|
| CN204344164U true CN204344164U (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420776769.8U Expired - Fee Related CN204344164U (en) | 2014-12-11 | 2014-12-11 | There is the datonation-inhibition automatic safety door of gas of fire-retardant decompression function |
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| CN (1) | CN204344164U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410147A (en) * | 2019-07-20 | 2019-11-05 | 宿州市金鼎安全技术股份有限公司 | A kind of mine city system based on geographical information technology |
-
2014
- 2014-12-11 CN CN201420776769.8U patent/CN204344164U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410147A (en) * | 2019-07-20 | 2019-11-05 | 宿州市金鼎安全技术股份有限公司 | A kind of mine city system based on geographical information technology |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 Termination date: 20161211 |
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| CF01 | Termination of patent right due to non-payment of annual fee |