CN205349399U - Prevent abrupt air door self -lock device - Google Patents
Prevent abrupt air door self -lock device Download PDFInfo
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- CN205349399U CN205349399U CN201521050723.9U CN201521050723U CN205349399U CN 205349399 U CN205349399 U CN 205349399U CN 201521050723 U CN201521050723 U CN 201521050723U CN 205349399 U CN205349399 U CN 205349399U
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Abstract
The utility model relates to a prevent abrupt air door self -lock device, include: move ahead head -on along with the tunnelling apart from 5 -10m department behind the headwork face and remove a plurality of sensors of installation, sensor and monitoring station hookup, install in big lane air inlet side the monitoring station, the monitoring station through the cable with prevent abrupt air door from lock controller hookup, prevent abrupt air door and for installing the reverse air door that mouthful department opened that opens the door at excavation roadway to the one -way length of tunnelling face side, install in the big lane side of preventing abrupt air door from lock controller, monitoring station and be equipped with from lock controller and provide battery supply for oneself. The utility model discloses a setting up multiple sensor on the headwork face, collecting the various environmental parameter on the tunnelling face, outstanding back perhaps takes place in headwork face coal and gas outburst omen for real -time detection, starts the auto -lock procedure of preventing abrupt air door rapidly, firmly closes the reverse abrupt air door of preventing, with the calamity shutoff in the certain limit, avoid taking place explosion accident on a large scale, it is minimum to make the loss fall to.
Description
Technical field
This utility model relates to a kind of protrusion-dispelling air door self-locking device, is a kind of electromechanical equipment, is a kind of safety devices, is a kind of safety device for underground coal mine mode gas accident.
Background technology
Coal and gas prominent is a kind of extremely complex dynamic phenomenon occurred in underground coal mine production process, it can be sprayed suddenly substantial amounts of coal and substantial amounts of gas of gushing out by coal body within a short period of time to tunnel or stope, and cause certain, be very huge dynamic effect sometimes, it is Gas Disaster the most serious after gas explosion, is crustal stress and the coefficient result of gas pressure.
Coal and gas prominent disaster has great destructiveness, is mainly manifested in: the gas that (1) sprays, from hundreds of side to several all places, makes roadway be full of gas, causes personnel to suffocate, and the coal of ejection, rock, from tens tons to more than several ten thousand tons, cause coal stream to bury people；(2) a large amount of high pressure gas streams discharged can destroy tunnel facility, destroys ventilating system, even causes wind current control, affect mine ventilation system；(3) prominent gas causes gas, coal dust serial blast along (or against) is distinguished and admirable, and fierce dynamic effect can cause roof fall and fire incident, is the fairly large prominent accident immediate cause that causes casualties.
Because coal and gas prominent disaster is a kind of extremely complex mine gas dynamic phenomenon, grasp the restricting relation between prominent key element, it was predicted that prominent place, intensity of outburst and prominent time are highly difficult.Up to the present, to the rule occurred prominent under various geology, mining conditions but without grasping completely.Many countries and regions have to close coal and gas outburst mine in order to ensure Safety of Coal Mine Production.Although the staff of substantial amounts of scientific research personnel and colliery one line constantly gropes rule, summing up experience, various means of prevention and measure is adopted to solve many technical barriers, very big breakthrough has been had in gas preventing and control and gas utilization, but gas is still that " first killer " of safety of coal mines, and preventing and treating coal and gas prominent remains the most important thing.
From the enlightenment of the accident occurred or lesson it is: after some locality disaster occurs, if in a short period of time anticipation can be made in contingent more massive catastrophe, and take emergency measures before catastrophe occurs, eliminate some essential conditions occurring catastrophe to expand, take restriction and the effective measures of preventing and treating fault spread scope, thus can avoid causing bigger gas explosion accident loss or injures and deaths.Therefore research passive type coal and gas accident protrusion-dispelling equipment and structures, drop to controlled range or the minimum most important thing being currently to prevent and treat coal and gas prominent by the casualty loss after prominent.
Summary of the invention
In order to overcome problem of the prior art, the utility model proposes a kind of protrusion-dispelling air door self-locking device.The coal and gas prominent disaster occurred can be blocked at minimum zone by described device, takes rapidly effective emergency trouble shooting measures to provide safeguard for mine, thus preventing the gas explosion accident because locality disaster causes.
The purpose of this utility model is achieved in that a kind of protrusion-dispelling air door self-locking device, including: after distance driving face, 5-10m place moves ahead the mobile multiple sensors installed with development end, sensor by cable and the ambient parameter monitoring in real time each sensor acquisition and each ambient parameter be analyzed, process, the monitoring station that shows couples, described monitoring station is arranged on great Xiang inlet side；Described monitoring station is coupled with the self-lock controller of protrusion-dispelling air door by cable, described protrusion-dispelling air door is be arranged on the reverse throttle that digging laneway enabling mouth place opens to the unidirectional length in development end side, described self-lock controller is arranged on the great Xiang side of protrusion-dispelling air door, and described monitoring station and self-lock controller are provided with self contained battery source.
Further, described sensor includes: firedamp sensor, dust sensor, air velocity transducer, temperature sensor, and each sensor is coupled by OR circuit.
Further, described protrusion-dispelling air door includes: fixedly secure the doorframe at digging laneway enabling mouth place and door leaf, fixing connection the first steel wire rope on described door leaf, the first described steel wire rope is connected with counterweight by assembly pulley, described counterweight is also connected with the second steel wire rope, the second described steel wire rope connection suspension is at the suspension ring controlled on bar, and described control bar is slided in fixing seat by self-lock controller.
Further, described monitoring station and lock controller are provided with self contained battery source.
This utility model produces to provide the benefit that: this utility model by arranging multiple sensors on driving face, collect the various ambient parameters in development end, monitor and find the sign of driving face coal and gas prominent in real time, or after generation is prominent, start rapidly the self-locking program of protrusion-dispelling air door, firmly close reverse protrusion-dispelling air door, disaster is blocked in certain limit, avoid large-scale explosion accident, make loss be preferably minimized.This protrusion-dispelling air door self-locking device simple in construction, workable, it is driving face coal and mash gas outburst prevention disaster reduction method one device simple, effective.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is device installation site schematic diagram in tunnel described in embodiment one of the present utility model；
Fig. 2 is the structural principle schematic diagram of protrusion-dispelling air door described in embodiment three of the present utility model, is the C direction view in Fig. 1；
Fig. 3 is self-lock controller structural representation described in embodiment three of the present utility model, is the D point enlarged drawing in Fig. 2.
Detailed description of the invention
Embodiment one:
The present embodiment is a kind of protrusion-dispelling air door self-locking device, as shown in Figure 1.The present embodiment includes: after distance driving face 1,5-10m place moves ahead with development end and moves the multiple sensors 2 installed, sensor by cable and the ambient parameter monitoring in real time each sensor acquisition and each ambient parameter be analyzed, process, the monitoring station 3 that shows couples, described monitoring station is arranged on inlet side, big lane 4；Described monitoring station is coupled with the self-lock controller 6 of protrusion-dispelling air door 5 by cable, described protrusion-dispelling air door is be arranged on digging laneway 7 to open the door the reverse throttle that mouth place opens to the unidirectional length in development end side, described self-lock controller is arranged on the great Xiang side of protrusion-dispelling air door, and described monitoring station and self-lock controller are provided with self contained battery source.Device described in the present embodiment is in driving face mounting arrangements, as shown in Figure 1.
Device described in the present embodiment includes three parts: parameter acquisition, Monitoring and Controlling and protrusion-dispelling air door.Three is combined by the present embodiment, it is achieved the protection to driving face.The installation site of this three part is very exquisite, only correct installation site, just can play effective protective action.
The installation site of three parts described in the present embodiment is very crucial, it is necessary to considering when accident occurs, equipment can continue to safe operation.The installation site of sensor can at 5-10 rice of distance driving face.If distance is too near from work surface, then it is easily subject to the interference of road heading machinery, the too remote effect then reducing monitoring.If digging laneway is longer, it is also possible to install and organize sensor more, in order to by the position that record analysis parameter is suddenlyd change.Monitoring station is the key position of whole device, need to be arranged in relatively safe big lane, and be arranged on inlet side, namely the weather side of digging laneway, as it is shown in figure 1, the air intake direction in arrow A Shi great lane.Protrusion-dispelling air door is arranged on the position that digging laneway is connected with big lane, namely digging laneway enabling mouth place, but protrusion-dispelling air door is not the enabling mouth place being just arranged on digging laneway under normal circumstances, but the position from an enabling mouth place segment distance inwards, as shown in Figure 1.Accident due to Gas Outburst etc, it is all to great Xiang direction at the air-flow of driving face, therefore, the unidirectional hold-open door of protrusion-dispelling air door, the dotted line of Fig. 1 represents the situation that protrusion-dispelling air door is closed, and solid line represents the state that protrusion-dispelling air door is opened, when a fault occurs, so as the rapid locking of protrusion-dispelling air door, it is prevented that gas flows into big lane, reduces loss to greatest extent.Owing to the wind direction in digging laneway is to be blown to great Xiang direction by boring head, as indicated by arrow b of figure, so the opening and closing direction of protrusion-dispelling air door is contrary with the wind direction in digging laneway, so becoming reverse throttle.Protrusion-dispelling air door one is facing to big lane, and one facing to driving face.Comparatively safe facing to the one side in big lane, therefore self-lock controller is arranged on great Xiang side.
Parameter acquisition part is various sensor, the sensor often installed in down-hole includes: firedamp sensor, dust sensor, air velocity transducer, temperature sensor, further types of sensor can also be installed certainly, and the quantity of various types of sensor can be multiple, if use 2-4 firedamp sensor, or multiple dust sensor.These sensors can be separately installed sensor, it is also possible to is sensor combinations body.Relation between each sensor be or relation, the parameter that namely any one sensor exports, if it exceeds safety value, all can trigger.Therefore, each sensor can use OR circuit to couple.
Various sensors may be mounted at together, or is distributed in multiple positions in tunnel, it is possible to certain electron process facility, is therefore also required to power supply, for this, it is possible to arranges special power supply and powers, as used battery to power.Owing to being underground equipment, it may be that intrinsically safe equipment.Can adopt between sensor and monitoring station and be wirelessly transferred, to guarantee the various ambient parameters that can also obtain scene when there is accident.
Monitoring station and self-lock controller cable connection, monitoring station has automatically or staff's force start self-locking program function, and order self-lock controller closes protrusion-dispelling air door.Monitoring station is a kind of electronic installation that can carry out data storage and process, and with display screen, it is possible to show various parameter and alarm.Monitoring station should be arranged in protrusion-dispelling air door Wai great lane, away from the comparatively safe position of driving face, even if can also continue to work when there is accident.Monitoring station can be substation form, namely arranges substation in multiple tunnels, and is connected on host computer by these substations, forms total monitoring, in order to grasp the situation of whole mine.
Monitoring station should also be as being intrinsically safe equipment, it should also provides uninterrupted power source for oneself, if using battery the mode such as to power, it is achieved uninterrupted power supply, with solution of emergent event.
Protrusion-dispelling air door can have various ways, and it is characterized by firmly solid door leaf and doorframe, is firmly fixed in wall.Protrusion-dispelling air door is opened to work surface direction is unidirectional, and normally opened under normal circumstances, once there is accident, then under the control of the controller, closes rapidly.
Owing to protrusion-dispelling air door must be solid, therefore, generally relatively thick and heavy, conventional single or double acting door cannot meet requirement, therefore, need to use and be automatically switched off facility with counterweight.Counterweight being sling under normal conditions, when there is accident, counterweight being fallen, counterweight pulls door leaf to close by pulley under gravity, it is achieved isolation.
The closedown of protrusion-dispelling air door is by self-lock controller control.Self-lock controller is electrical control gear, in order to the signal of telecommunication of triggering is turned to mechanical action, makes door leaf close.Owing to the self-lock controller of protrusion-dispelling air door is also electrical equipment, therefore, for safely and effectively, it should also what have oneself provides uninterrupted power source for oneself.
Embodiment two:
The present embodiment is the improvement of embodiment one, is the embodiment one refinement about sensor.Sensor described in the present embodiment includes: firedamp sensor, dust sensor, air velocity transducer, temperature sensor, and each sensor is coupled by OR circuit.
Sensor is the assembly that dust sensor, firedamp sensor, air velocity transducer, temperature sensor are coupled by OR circuit, adopts battery to power, and essential safe type moves forward with driving.
Gas and dust are the biggest factors that set off an explosion, and therefore, pay attention to especially, it is possible to the sensors installing several gas and dust more.Each sensor can be grouped together, it is also possible to is separately mounted to each position in tunnel.The parameter that each sensor exports can be relatively independent, it would however also be possible to employ or relation output, i.e. any one parameter generation large change, all can cause alarm or trigger protrusion-dispelling air door close.
Embodiment three:
The present embodiment is embodiment one improvement, is the embodiment one refinement about protrusion-dispelling air door.Protrusion-dispelling air door described in the present embodiment includes: fixedly secure 501 doorframes at digging laneway enabling mouth place and 502 door leafs, fixing connection the first steel wire rope 503 on described door leaf, the first described steel wire rope is connected with counterweight 505 by assembly pulley 504, described counterweight is also connected with the second steel wire rope 506, the second described steel wire rope connection suspension is at the suspension ring 508 controlled on bar 507, described control bar is slided in fixing seat 509 by self-lock controller, as shown in Figure 2,3.
Self-lock controller instruction controls bar and is collapsible in fixing seat, landing the second steel wire rope, makes counterweight pull the first steel wire rope motion under gravity, closes protrusion-dispelling air door；Described fixed pulley group is made up of two fixed pulleys, and function is for being horizontal movement the break-in that moves both vertically of the first steel wire rope.
Protrusion-dispelling air door is solid and reliable reverse throttle, need at ordinary times for normally open because ventilating, during heading end generation coal and gas prominent, the dust that sensor is monitored in real time, gas, wind speed, temperature parameter passes to rapidly monitoring station, the monitoring station ambient parameter analyzing and processing to monitoring, if judging, one or more index transfinites, start protrusion-dispelling air door program immediately, instruction self-lock controller, control bar is made to be collapsible in fixing seat, landing the second steel wire rope, counterweight is drawn the first steel wire rope and is moved downward, first steel wire rope is horizontal direction by assembly pulley break-in, pull angle on protrusion-dispelling air door door avris, firmly close air door, coal and gas are blocked in high pressure coal with gas district, cut off the outside the evolving path of disaster, prevent from causing large-scale blast.
The present embodiment utilizes the mode that triggering control bar moves to be discharged by suspension ring, promotes counterweight to pull door leaf to close.Control mode is simply effective, and part is little, manufactures simple, without there being too many maintenance, it is possible to effectively reduce fault and potential safety hazard.
Embodiment four:
The present embodiment is the improvement of above-described embodiment, is the above-described embodiment refinement about monitoring station and self-lock controller.Monitoring station and self-lock controller described in the present embodiment are provided with self contained battery source.
Because being the safety equipment prevented and reduced natural disasters, its use be occur accident in emergency circumstances, it is contemplated that when accident, what all it may happen that, therefore, as electrical equipment, power supply is particularly significant, it does not have power-supply device cannot work, therefore, monitoring station, self-lock controller all arrange the power supply provided for oneself, and this power supply can be the battery of uninterrupted power source, or directly uses battery.Directly use battery to be advantageous in that and can set up special job duty, monitor the situation of battery at any time, once find that electricity deficiency can be changed immediately, it is to avoid when accident occurs, cause that equipment cannot be properly functioning owing to electricity is not enough, and delayed rescue.
Embodiment five:
The present embodiment is a kind of protrusion-dispelling air door self-locking method using device described in above-described embodiment.The main points of described method are as follows:
(1) after driving face, certain position arranges protrusion-dispelling air door, and air door is installed self-lock controller, installs mobile sensor at heading end place, installs protrusion-dispelling air door self-locking device monitoring station, coupled with sensor monitoring station with cable, as shown in Figure 1 in big lane；
(2) during boring head generation coal and gas prominent, the ambient parameter of Sensor monitoring is real-time transmitted to monitoring station, monitoring station is according to safety criterion value set in advance, judge whether to transfinite, if dust, gas, wind speed, having the one or more early warning value that exceedes in temperature, monitoring station starts protrusion-dispelling air door self-locking program immediately, and instruction is to self-lock controller；
(3) self-lock controller receives instruction, shrink control bar and enter in fixing seat, landing the second steel wire rope, counterweight indexes the first steel wire rope under gravity and moves downward, first steel wire rope is horizontal direction by fixed pulley group break-in, pull angle on air door door avris, protrusion-dispelling air door is firmly closed, namely complete a protrusion-dispelling air door auto-lock process；
(4) if monitor driving face have coal and gas prominent omen in advance, after evacuating people with equipment, staff presses locking press button on monitoring station, force start protrusion-dispelling air door self-locking program, closes reverse protrusion-dispelling air door.
Method described in the present embodiment includes three processes: normality, dangerous sign state and accident state occur, specifically comprises the following steps that
(1) under normality: each sensor is constantly monitored each ambient parameter of development end and included: gas, dust, wind speed, temperature, at this moment protrusion-dispelling air door fully opens, the first steel wire rope looseness, and suspension ring hang on control bar, counterweight is provoked by the second steel wire rope, bears all wt of counterweight.
Described normality refers to: when not having any environmental index to exceed standard, development end works normally.At this moment protrusion-dispelling air door opens wide, and makes the entrance digging laneway of smooth air, and personnel and equipment can also be random simultaneously by protrusion-dispelling air door.
(2) dangerous sign state occurs: monitoring station shows, there is abnormal increasing in gas, or gas, dust, wind speed, temperature four indices there are two, three or four occur abnormal, but all not up to dangerous values, for preventing extensive accident, withdraw the staff of development end, manually booted self-lock controller by personnel, control, in the fixing seat of bar retraction, to make suspension ring depart from, second steel wire rope loosens, counterweight declines, and strains the first steel wire rope, and the first steel wire rope is under the pulling force of counterweight, pull protrusion-dispelling air door, and make protrusion-dispelling air door close.
Self-lock controller is arranged on the inlet side (near great Xiang side) of protrusion-dispelling air door, controls bar and is collapsible in fixing seat, makes counterweight pull steel wire rope to fall under gravity does；Described control bar, from fixing seat intermediate throughholes through exposing one end, hooks the second steel wire rope, and described fixing seat median pore diameter is more than controlling shank diameter, and therefore controlling bar can move freely；Described fixing seat firmly installs, can long term support counterweight.Balance weight is more than 150Kg, and with two rope tractions, the second steel cord ends is fixed with annulus, hangs over the exposed junction controlling bar through fixing seat mesopore.Article 1, assembly pulley walked around by steel wire rope, and the gravity of vertical direction is changed into horizontal direction pulling force, and another termination of the first steel wire rope is connected to angle on the door avris of protrusion-dispelling air door.
(3) accident state: monitoring station detects that gas index exceedes dangerous values, or dust, wind speed, temperature index have two to three to exceed dangerous values, monitoring station sends enabled instruction from trend self-lock controller, and self-lock controller starts, control in the fixing seat of bar retraction, making suspension ring depart from, the second steel wire rope loosens, and counterweight declines, strain the first steel wire rope, first steel wire rope, under the pulling force of counterweight, pulls protrusion-dispelling air door, and makes protrusion-dispelling air door close.
Driving face generation coal and gas prominent, the ambient parameter of Sensor monitoring passes to Monitor Sub-Station of Less in real time, ambient parameter is made rapidly analyzing and processing by Monitor Sub-Station of Less, transfinites if one or more in gas, dust, wind speed, temperature, starts protrusion-dispelling air door self-locking program immediately.First Monitor Sub-Station of Less is to self-lock controller from lock order, and after self-lock controller receives self-locking order, instruction controls bar and is contracted in fixing seat, and the second steel wire rope is from controlling rod end head landing, and counterweight moves downward under gravity, pulls the first steel wire rope to move downward；First steel wire rope is walked around the assembly pulley direction of motion and is become horizontal direction, pulls angle on protrusion-dispelling air door door avris, firmly closes air door, makes the coal highlighted block in district with Gas-Flow closure at high pressure, cuts off disaster spreading path, control Accidents Disasters district.If monitor driving face have coal and gas prominent omen in advance, after the personnel of withdrawing from and relevant device, staff presses locking press button in Monitor Sub-Station of Less, force start protrusion-dispelling air door self-locking program, closes protrusion-dispelling air door.
Finally it should be noted that, below only in order to the technical solution of the utility model to be described and unrestricted, although this utility model being described in detail with reference to preferred arrangement scheme, it will be understood by those within the art that, the technical solution of the utility model (process etc. of the quantity of such as sensor and form and connecting mode, monitoring) can be modified or equivalent replacement, without deviating from the spirit and scope of technical solutions of the utility model.
Claims (4)
1. a protrusion-dispelling air door self-locking device, it is characterized in that, including: after distance driving face, 5-10m place moves ahead the mobile multiple sensors installed with development end, sensor by cable and the ambient parameter monitoring in real time each sensor acquisition and each ambient parameter be analyzed, process, the monitoring station that shows couples, described monitoring station is arranged on great Xiang inlet side；Described monitoring station is coupled with the self-lock controller of protrusion-dispelling air door by cable, described protrusion-dispelling air door is be arranged on the reverse throttle that digging laneway enabling mouth place opens to the unidirectional length in development end side, described self-lock controller is arranged on the great Xiang side of protrusion-dispelling air door, and described monitoring station and self-lock controller are provided with self contained battery source.
2. device according to claim 1, it is characterised in that described sensor includes: firedamp sensor, dust sensor, air velocity transducer, temperature sensor, each sensor is coupled by OR circuit.
3. device according to claim 1, it is characterized in that, described protrusion-dispelling air door includes: fixedly secure the doorframe at digging laneway enabling mouth place and door leaf, fixing connection the first steel wire rope on described door leaf, the first described steel wire rope is connected with counterweight by assembly pulley, being also connected with the second steel wire rope in described counterweight, the second described steel wire rope connection suspension is at the suspension ring controlled on bar, and described control bar is slided in fixing seat by self-lock controller.
4. according to the device one of claim 1-3 Suo Shu, it is characterised in that described monitoring station and lock controller are provided with self contained battery source.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201521050723.9U CN205349399U (en) | 2015-12-16 | 2015-12-16 | Prevent abrupt air door self -lock device |
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| CN201521050723.9U CN205349399U (en) | 2015-12-16 | 2015-12-16 | Prevent abrupt air door self -lock device |
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| CN205349399U true CN205349399U (en) | 2016-06-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370310A (en) * | 2015-12-16 | 2016-03-02 | 北京天地华泰矿业管理股份有限公司 | Self-lock device and method for outburst prevention air door |
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2015
- 2015-12-16 CN CN201521050723.9U patent/CN205349399U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370310A (en) * | 2015-12-16 | 2016-03-02 | 北京天地华泰矿业管理股份有限公司 | Self-lock device and method for outburst prevention air door |
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