CN105909299A - Coal seam potential energy body physics blast control method - Google Patents
Coal seam potential energy body physics blast control method Download PDFInfo
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- CN105909299A CN105909299A CN201610241862.2A CN201610241862A CN105909299A CN 105909299 A CN105909299 A CN 105909299A CN 201610241862 A CN201610241862 A CN 201610241862A CN 105909299 A CN105909299 A CN 105909299A
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- 238000005381 potential energy Methods 0.000 title claims abstract description 98
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 45
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
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Abstract
A coal seam potential energy body physics blast control method uses a drill-push one-piece outburst prevention drilling machine and a coal-gas separator to work; the working method comprises the following steps: determining positions, depth, numbers, drilling angles, two-hole spacing and two-hole ending distance of drill holes; using a hydraulic system to provide horizontal and vertical support for the drilling machine, so the drill-push one-piece outburst prevention drilling machine becomes one piece with the tunnel; carrying out reference drilling on the coal seam so as to lay the base for sleeve devices and pushing work; using the coal-gas separator to replace a guide device, making safety leakage preparation, and carrying out regular drill-push work; adding drill rods and sleeves according to the maximum push distance of the drilling machine until the drill hole reaches the project designed depth. The method can leak and discharge gas or carbon dioxide in the coal seam potential energy body having physics blast risks, thus thoroughly preventing coal and gas protrude accidents, and providing safe production conditions for coal enterprise and miners.
Description
Technical field
The present invention relates to the safety production technique in underground coal mine digging field, particularly relate to a kind of coal seam potential energy body physics
The prevention and controls of blast.
Background technology
During coal mining, coal and gas prominent dynamic disaster annoyings the coal digging of underground coal mine all the time for a long time
Process, China is the country that coal and gas prominent disaster is the most serious in the world.The most all the dynamic disaster in coal mining is prevented
The technology of controlling be classified as safety in production program for the development of science and technology the most important thing, but can not come to personally when occurring based on coal and gas prominent disaster
Property." preventing and treating coal and gas prominent regulation " reader is so to describe coal and gas prominent: " coal and gas prominent is broken
Coal, rock and gas are under the common effect of crustal stress and gas, by the power dished out to digging space suddenly in coal body or rock mass
Phenomenon, is one of disaster the most serious in colliery.Its destructiveness mainly shows themselves in that the shock wave of prominent formation destroys digging space
Interior facility；Coal, the rock dished out injure or bury field personnel；Moment pours in a large amount of gas in digging space and makes down-hole wind
In stream, gas density increases rapidly, causes personnel's death by suffocation, possibly even causes gas explosion accident when running into burning things which may cause a fire disaster.Coal with
Gas burst accident not only causes coal mining enterprise's heavy losses economically；And it is likely to result in casualties, the most also
Cause and have a strong impact on." " but all in all, due to complexity and the limitation of existing science and technology of prominent process, people are to coal
Be still within qualitative stage with the understanding of gas outburst mechanism, to protrusion phenomenon occur many aspects also fail to the science of making,
Comprehensively, complete explanation." discovery to the natural quality of coal and gas prominent disaster, fundamental research, with engineer applied
Technological development is whole world coal and gas prominent diaster prevention and control research field, it would be highly desirable to the problem of breakthrough and task.
By after analysis and research and simulation flowchart, we draw coal and gas prominent the most only, gas moves
The coal breakage process of power, say, that be projected into the coal inside mined area or tunnel and part spoil, is by gas or carbon dioxide
Compression potential energy dished out.We have a look on March 6th, 2016 again, occur in the limited public affairs of Tonghua, Jilin Province Mining Group
Department pinaster colliery, the several information in coal and gas prominent accident, it may be assumed that catastrophe is gushed out gas 7160 cubic metres period, prominent
Bastard coal 293 tons, Catastrophe Process is extremely short, and leaves hole in coal body.
Below in conjunction with coal seam potential energy body physical explosion, namely before it has been recognized that coal and gas prominent disaster,
This endangered people more than 180 year and also so far people the most thoroughly recognized, the natural phenomena of objective things, spy
Property and rule are described below:
Phenomenon: being found with research by the analysis of dynamic disaster prominent to coal (rock) and gas (carbon dioxide), it generally exists
Catastrophe period with during the mixing impact of emergentness, loud noise and gas (gas, carbon dioxide) and solid (coal, rock)
Dynamic property when stream energy converts is with destructive, and gush out a large amount of gas or carbon dioxide and prominent a large amount of coals or spoil, and
The phenomenon leaving irregular hole in coal body is analyzed, and carries out big gun with underground coal mine and adopts the process in explosive blasting coal breakage period
Quite similar, and various show the most identical afterwards, during only coal breakage adopted by big gun, explosive there occurs molecular changes and coal
The most do not change with Gas Outburst gas in period molecule.It is raw that violent chemical reaction when explosive blasting is explosive charge adopted by big gun
The huge pneumatic energy become, coal body from the very fast process dished out in inside, coal seam；And coal and gas prominent is pneumatic energy equally
Unexpected release, by coal body very fast dish out mined area or lane space from coal seam, only this pneumatic energy source is
The coal seam phase in the time immemorial has been embedded in there the most when being formed, it is the same as time bomb, will stand to lose as long as people meet it,
Be not injured be exactly dead.By research and analysis and carry out the similarity of natural phenomena and the comparison of the goodness of fit, find coal afterwards
To Gas Outburst dynamic disaster process i.e. so and big gun to adopt explosive blasting coal breakage similar, then it is quick-fried that it also necessarily belongs in nature
Fried category, the most so it belongs to blast category for it, and we the most do not embarrass it to sit in the right seat, because in currently known nature only
There are three huge explosion types such as " physical explosion, chemical explosions, with nuclear explosion ", again because being that material atom there occurs during nuclear explosion
Fusion or fission, so just can produce huge energy, cause huge destructive power, so knowing that coal and gas prominent does not belongs at a glance
Category in nuclear explosion type；See chemical explosion again, not only can produce molecular changes, and its blast has necessarily been intended to ignite dress
The ignition put, just can occur explosion, because in any coal and gas prominent accident once, the most once by what
Thing is ignited, although have with big gun adopt coal breakage synchronize prominent when, but that causes after to be also its Environmental effect destroyed, institute
The category of the chemical explosion class that dynamic disaster is not belonging in nature too of dashing forward with coal and gas.So, three huge explosion type
In the most remaining physical explosion type come and coal and gas prominent dynamic disaster find relatives, physical explosion refers to that material is because of state
Or the blast that pressure is undergone mutation and formed.Material before it obvious difference is that physical explosion with chemical explosion and after exploding
Character and chemical composition do not change.Such as the bursting of boilers, pressure vessel blast, automobile tire blast etc., same coal and gas
The chemical composition of prominent period gas or carbon dioxide does not change；And coal is not the most sent out with materials such as spoils
Raw change, simply the gas potential energy in its hole stayed is because undergoing mutation, and energy becomes often from high pressure conditions Transient transformation
Pressure condition, phenomenon from every side sees, the dynamic disaster process of coal and gas prominent and phenomenon, and natural in three huge explosion types
In physical explosion type the most similar, and coincideing very, just the most the same with the DNA of we mankind, it may be said that its energy
Conversion process and physical explosion 100% coincide, undoubtedly, the physical explosion category during i.e. it belongs to nature, for this we
Coal and gas prominent this call qualitatively and be defined as " coal seam potential energy body physical explosion " phenomenon.
Characteristic: because coal and gas prominent there to be the new address of coal seam potential energy body physical explosion, thus following just with fixed
Its characteristic and rule for justice, quantitative address.Its characteristic is exactly in plasticity coal seam, also exists by irregular obstacle body bag
Wrapping up in, internal full gas or carbon dioxide mix with coal or rock, and gas is in the potential energy body of squeezed state, and it is internal
Material be in potential energy elasticity environment, boundary region has extremely strong sealed nature, does not cause internal squeezed state gas to ooze to body
Outer plasticity coal seam.By to the coal and gas prominent once occurred, i.e. coal seam potential energy body physical explosion accident and event
After site environment analysis and research it can be assumed that, the existence of coal seam potential energy body be coal seam when formation initial stage and cooling parasitism the most
Suffering, it is the congenital product of the Nature rather than disturbance time now people carry out coal seam digging causes, because this is not inconsistent yet
The law of energy transformation and stability.
Coal seam potential energy body physical explosion adopts emergentness during explosive blasting coal breakage, loud noise, gas-solid flow except having with big gun
The conversion of impact homenergic characteristic outside, and big gun adopts coal breakage and has the difference of several maximum, that is, during coal breakage, big gun
Adopting and have a moment and disposably complete coal breakage process, the gas that explosive produces can produce sorting to coal body；And coal seam potential energy
During body physical explosion coal breakage, as dish out bastard coal amount excessive blocking tunnel time, gas energy can blocking tunnel thing again to
Before push away, till tunnel tamper occurs, with top, tunnel, the passage that air-flow is gushed out, be probably once or several times during this, remove
Above-mentioned phenomenon and big gun are adopted outside coal breakage process has any different, an also difference, it is simply that coal during the potential energy body physical explosion of coal seam
Body after sorting peace and quiet, granularity more than coal dust, the performance of the ickings that the naked eyes of people can be offered an explanation and cinder etc., hence it is evident that
There is the flakey from explosion after decompression, and big gun adopts coal breakage granularity more than coal dust, is that the naked eyes of people can divide equally
The ickings debated and the performance of cinder etc., have the angular significantly by blast line of force cutting, say, that same coal breakage is existing
As, but coal seam potential energy body physical explosion coal breakage and big gun are mined and be there is significantly difference, and this is also one of its key property.
Rule: coal seam potential energy body physical explosion dynamic disaster, except belonging to physical explosion class category in nature, and possesses
Outside its distinctive correlation properties, it has more the natural law of oneself, i.e. potential energy body is the inborn product in coal seam；It is mainly composed and deposits
In the place that Seam Roof And Floor spacing is big, i.e. the most thickening place even forming coal bag more than more than 20%, coal seam；It is composed
It is stored in coal seam buried depth tens meters in any coal seam more than km；Its volume scale can from less than 1 cubic metre to thousand of cubes
Rice；The pressure of its internal gas or carbon dioxide can be from less than 1MPa to tens MPa.During there is physical explosion in it, and
Big gun adopts that explosive blasting is the same must produce four particle movement phenomenons, the i.e. movement particles of the sound wave of loud noise simultaneously；Consolidating of earthquake type
The movement particles of body exciting ripple；The movement particles of gas potential energy impingement flow；Motion matter with coal Yu the solids impingement flow of spoil
Four matter such as point are always moved, and this can produce the rule of four motion matter simultaneously, are also that in nature, any types of burst is indispensable
Judging index state.And, coal seam potential energy body physical explosion is also equipped with following rule, and that Coal Seam Thickness Change is less than 20%, coal seam
In do not have potential energy that the physical explosion dynamic disaster of potential energy body then will not occur；Even if coal seam has the existence of potential energy body, as
Really people do not go to carry out coal mining, allow their own quietly treat at that, then it will will not occur physical explosion existing forever
As；Even if coal seam exists again potential energy body, if people are when carrying out digging, as far as possible away from its border, namely allow it
The border distance away from free face is much larger than the size of the minimum burden of its physical explosion, and it also will not occur physical explosion to endanger
Danger；Further, be exactly that people must carry out coal production, and production period is likely to close to potential energy body, or is likely to
Passing from potential energy body blindly, if at this moment people do not know oneself, close to dangerous, or not know that danger is etc.
Oneself, as having time bomb at one's side or having been enter into minefield, if danger is not got rid of, people are just most likely subject to wound
Evil, same reason, if people are outside the safe distance of the minimum burden of potential energy body generation physical explosion, beforehand through
Technical measures carry out blowout job to it, are released by its internal pneumatic potential energy and make it lose physical explosion energy, then, even if
The mining work activities of people passes through and people the most also will not cause any compromising again.Rule according to potential energy body generation physical explosion
As long as rule and condition are it can be seen that people carry out the recovery activity of underground coal, no matter any coal seam, no matter the most any degree of depth,
The job content of the most that type, never allows within the scope of mined area or 5 times of coal seam thickness distances of work surface
With the presence of coal seam potential energy body in non-pressure release " shape " state, just can ensure that life security and the peace of coal enterprise's property of operating personnel
Entirely.
How could eliminate the risk factor of coal seam physical explosion, be technical problem urgently to be resolved hurrily.
Summary of the invention
In order to thoroughly stop the injury that coal seam potential energy body physical explosion dynamic disaster causes to miner, eliminate coal seam physical exploding
Fried risk factor, the present invention provides the prevention and controls of a kind of coal seam potential energy body physical explosion, and the method is in coal bed drilling process
Middle utilization bores top integrated synthesis hole creating technology, to running in boring and the comprehensive pore forming process of push pipe and visiting the coal seam potential energy body arrived
Internal pressure potential carries out safety relief and safety dumping, thus eliminates the potential energy root of its physical explosion so that it is lose thing
Reason explosion danger.
Realize above-mentioned purpose by the following technical solutions:
A kind of prevention and controls of coal seam potential energy body physical explosion, the method utilize " bore top one rigs against outburst device ", " coal with watt
This segregation apparatus " operation, operational method comprises the steps:
Step one, determines the position boring apical pore, the degree of depth, hole count and boring angle according to different work type and coal seam thickness situation
Degree, and the whole pitch-row of two pitchs of holes and holes from；
Step 2, on the basis of step one, carries out level by hydraulic power system for brill top one rigs against outburst device and props up
Support, vertical support, for rear portion skewed horizontal load device jack provide hydraulic power, in order to make brill top one rigs against outburst device
An entirety is become with tunnel；
Step 3, by bore top one rigs against outburst device guider location, by hydraulic power system be drilling equipment and
Jacking device provides power, under the drive of drilling equipment with the effect of propulsion plant, coal seam carries out the brill of reference type
Enter, and lay the first stone for casing bit and jacking operation simultaneously；
Step 4, on the basis of step 3, after the distance of drilling depth Yu jacking reaches to be sized, by " coal with
Gas segregation apparatus " replace guider, after the preparation carrying out safety relief, formally bore the operation of apical pore；
Step 5, drilling depth constantly advance with sleeve pipe continuous by jacking during, row to be advanced according to rig maximum
Journey adds stacks and sleeve pipe at any time, until the degree of depth on hole drill top to engineering design.
As preferably, the environmental condition before implementing step one is: ensure bore operation place and environment well-ventilated, various
The concentration of harmful gas meets the relevant regulations of " safety regulations in coal mine ", and possesses water supply and compressed air self-help and escape safety guarantee
Facility.
As preferably, the environmental condition before implementing step one also includes: boring ickings ensures with coal dust and depositing dust water
Continual supply；Gas monitor device is working properly, and with monitoring mining monitoring system network, Gas-Flow be exported to boring
Do not leak electricity between operation hidden danger, to guarantee the safety dumping of gas.
As preferably, the environmental condition before implementing step one also includes: the position, hole of boring is designed with in coal seam thickness
On the basis of the heart, spacing and whole pitch-row are from the thickness less than coal seam, the security protection scope of stone door punching coal boring, crossdrift profiled outline
Upper and lower, left and right and the edge met head on the basis of, its protection distance is more than or equal to 5 times of (being not less than) coal seam thickness；Coal (rock)
The security protection distance of lane driving boring is on the basis of roadway's sides and the edge of three of meeting head on, more than or equal to (being not less than) coal seam
5 times of thickness.
As preferably, in described step 5, during carrying out gas pumping (putting) hole and safety verification hole, bore
Bar, sleeve pipe, hydraulic system, boring isometrical and the output of constant speed drilling cuttings, drilling rod and sleeve pipe between time improper phenomenon occurs,
To stop the propelling of boring and push pipe operation immediately, and be transferred to coal dust with pressure and gas or the discharge journey of carbon dioxide on the spot
Sequence, utilizes braking and the discharge function of auger stem, until this no longer has the gases such as coal dust and gas to discharge in holing, and
Till the concentration of gas or carbon dioxide reaches the standard that " safety regulations in coal mine " specifies.
At least there is techniques below effect in the embodiment of the present invention:
1) present invention is by the horizontal support to drill hole coal seam, increases the distance of potential energy body physical explosion minimum burden,
The generation of coal seam potential energy body physical explosion accident during bore operation can be prevented effectively from.
2) present invention is rotated by auger stem in sleeve pipe, because of have between rib sleeve pipe across, so conventional borehole
During drilling cuttings discharge the most smooth bit freezing；Armful brill when boring is pressed, feeding are less than the crown drill during thrust of potential energy body, and gesture
The internal high pressure gas of energy or high-pressure carbon dioxide carry the spray orifice phenomenon of coal dust and will effectively be solved and overcome.
3) present invention is by boring top integrated synthesis hole creating technology, can effectively solve asking of current complicated seam boring difficulty
Topic, i.e. hole drill do not enter, Kelly Stubb the most out, collapse hole releasing pipe place difficulty etc. boring a difficult problem.
4) present invention is by boring top integrated synthesis hole creating technology, not only can effectively solve a difficult difficult problem of holing at present,
And the potential energy body in coal seam can be found while carrying out boring and push pipe integration of operation, and can timely, thoroughly, peace
Complete releases the compression potential energy that it is internal so that it is lose physical explosion risk factor.
5) present invention by giving definition and quantifying, from this coal and gas prominent to the physical explosion performance of coal seam potential energy body
The mystique of dynamic disaster will thoroughly disappear, its only in nature a kind of simple of physical explosion category class the most naturally show
As, and there is oneself characteristic and regularity, and as long as people are in carrying out coal mining work activities, the change to coal seam thickness,
And the abnormality of appearance is added to notice in boring procedure, coal seam potential energy body physical explosion danger would not occur, the most just
Being to add to note and skillfully grasp correlation technique and knowledge, " coal and gas prominent " accident that it has often been said in the past will never
Can occur.
The present invention, in the effect for boring the top horizontal support that integrally rigs against outburst device is carried out and skewed horizontal load, is boring
Place's roadway's sides is connected together, and bores the minimum burden of position coal body equal to indefinite extension, so could thoroughly avoid boring
The generation of the coal and gas prominent accident during the operation of hole, the i.e. generation of coal seam potential energy body physical explosion accident, it is ensured that coal is pacified
The full life security produced with operating personnel.
Accompanying drawing illustrates:
Fig. 1 is the flow chart of steps of the inventive method embodiment；
Fig. 2 is the structure chart realizing " bore top integration protrusion-dispelling and bore top one rigs against outburst device " that the inventive method is used；
Fig. 3 is the structure chart realizing " coal and gas segregation apparatus " that the inventive method is used.
Detailed description of the invention:
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the accompanying drawings to being embodied as carrying out
Describe in detail.
In order to be able to become apparent to illustrate this method for target, it is necessary to next imperial coal seam potential energy body physical explosion concept
Going arteries and veins to be analyzed, be i.e. how to define with quantitative for it, here we have used " return and originally return former method principle " with relative
" the spatial-temporal displacement method principle " of opinion, that is, i.e. so do not create groundless rumors in nature, the most do not have really and not because of rule, this
Just find out the truth of coal and gas prominent, i.e. its main rule existed and its principal contradiction side of specifying occurred to us
To, add the quantifiable data message after the most prominent accident occurs and the most quantifiable perception information, these are all us
To coal and gas prominent dynamic disaster, the scientific basis from perceptual knowledge to reasonable cognition and basis, be also us to coal with
These objective things of Gas Outburst dynamic disaster carry out the approach of abstract.
Referring to, on March 6th, 2016, there is coal and gas together in Tonghua, Jilin Province Mining Group limited pinaster colliery
Prominent accident, gas 7610 cubic metres of gushing out, prominent bastard coal 293t, coal seam stays hole.
Potential energy body: utilize " return and originally return former method principle " to determine the potential energy body of potential energy body: to utilize " return and originally return former method principle " true
The scale of set energy body, that first step first by bastard coal 293t, is converted into 293m according to standard empirical sanctified by usage 293t3
(void side), is the most also based on standard empirical, then 293 m3(void side) ÷ 2, then equal to 146.5 m3(solid yardage), then profit
With " spatial-temporal displacement method principle " in the Theory of Relativity, and use our imaginative thinking ability, this 146.5 m3Be in lane
Space-time body (bastard coal solids) in road mined area, then get back into the place that its original tax is deposited, i.e. in hole；Handle the most equally
Pour in tunnel or air 7610 cubic metres of gas and also get back in this hole, subsequently when bastard coal and gas are all by us
After getting back into the place that they are the most slow-witted, the rib that it is pushed away brokenly is propped up, and is to allow it return to not coal and gas occur equally
Apperance before prominent accident.Answer is: hole scale=146.5 m3(solid yardage)；
Gas compression ratio in hole: 7610 m3÷146.5 m3=51.95(times), according to the body of aerodynamics principle, i.e. gas
Amassing and often reduce one times, pressure just raises the general knowledge of 0.1MPa and determines, the gas pressure in hole is 51.95kg/cm, then except 10
(rough calculation) is equivalent equal to 5.195MPa. afterwards
By above-mentioned simple calculating with analyze after the result that draws be: in coal seam, one volume of congenital existence is 146.5 cubes
Rice, gas pressure is the space-time body of 5.195MPa, changes into the productivity for scientific research with scientific discovery, and is applied to coal
The convenience in safety in production field and the uniformity of understanding and science, we are in the space-time body of pneumatic compression state this
(hole) is referred to as " coal seam potential energy body "；" coal seam potential energy body physical explosion " be then people in carrying out coal mining process, connect
Near or destroy the border of potential energy body, i.e. its physical explosion minimum burden is before destroyed, and people are not the most inside it
Gas or during the effective pressure release of carbon dioxide potential energy, the phenomenon that potential energy body explodes will occur, again because it is during exploding,
There is not any change in all substances, simply potential energy changes into for atmospheric pressure state from high pressure conditions, so we are fixed for it
Adopted, quantification of " coal seam potential energy body " and " coal seam potential energy body physical explosion ", and the basic goal of the inventive method is exactly for coal
Safety in production provides how one finds coal seam potential energy body, the most how could eliminate the simple, easy of its physical explosion risk factor
The technology and method that the operating personnel of the technology understood, especially production line will soon skillfully grasp and can skillfully apply.
Fig. 1 is the flow chart of steps of the inventive method embodiment, a kind of coal seam potential energy body physical exploding that the present embodiment provides
Fried prevention and controls, the method is to utilize " boring top one rigs against outburst device ", " coal and gas segregation apparatus " operation, operation step
Rapid as follows:
Step 101, determines the position boring apical pore, the degree of depth, hole count and boring angle according to different work type and coal seam thickness situation
Degree, and the whole pitch-row of two pitchs of holes and holes from；Working environment before implementing step one includes: should ensure that bore operation place
The well-ventilated of environment, the concentration of various harmful gass should meet the relevant regulations of " safety regulations in coal mine ", and should possess water supply
With compressed air self-help and escape safety guarantee facility.Boring ickings should ensure that continual supply, gas with the depositing dust water of coal dust
Monitoring device should be working properly, and should network with monitoring mining monitoring system, and being exported between bore operation of Gas-Flow can not
There is the existence of electric leakage hidden danger, in order to guarantee the safety dumping of gas.
Step 102, on the basis of step one, is carried out for boring top integration rigs against outburst device by hydraulic power system
Horizontal support, vertical support, the jack for rear portion skewed horizontal load device provides hydraulic power, in order to make brill top one protrusion-dispelling bore
Machine and tunnel become rigidity or an entirety；
First step 103 carries out boring with brill top integration rigs against outburst device and advances operation, after creeping into certain depth, by coal
Replace guider with gas segregation apparatus, and sleeve pipe is installed on the coal screw thread with gas segregation apparatus front end.By guiding
Device positions, and provides power by hydraulic power system for bore position and jacking device, bores boring top integration protrusion-dispelling
The drive of machine, with under the effect of propulsion plant, carries out reference type to coal seam and creeps into, and be the jacking of casing bit simultaneously
Operation lays the first stone.
Step 104；On the basis of step 3, in the boring integration of operation with sleeve pipe, occur that propulsive force alleviates, coal dust
Unknown property increases, and when gas monitor display density increases rapidly, gas flow increases, stopping boring being advanced over push pipe
Journey, is transferred to the rotary motion without feeding of drilling rod at once, and with gas or carbon dioxide, non-cutting coal dust is carried out pressure release
Discharge.After the distance of drilling depth Yu jacking reaches certain size, displace guiding dress with coal and gas segregation apparatus
Put, after carrying out the preparation of safety relief at any time, just can formally bore the operation of top pore-forming.
Step 105, when certain boring no longer has unknown coal dust to discharge, and gas density reaches " safety regulations in coal mine ",
After regulation, then neighboring holes position is carried out above-mentioned brill apical pore operation, until all to bore apical pore complete and no longer in all safety verification holes
When having abnormal phenomena, the dangerous preventing and controlling of this work surface coal seam potential energy body complete.
Drilling depth constantly advance with sleeve pipe continuous by jacking during, according to rig maximum propelling stroke with
Time add stacks and sleeve pipe, until the depth location on hole drill top to engineering design；
Implement step 5 also includes: if gone out in carrying out gas pumping (putting) hole and the brill top pore forming process in safety verification hole
Existing: the propelling of drilling rod is the most laborsaving, or when fltting speed is very fast；And the jacking load of sleeve pipe is when being obviously reduced, i.e. hydraulic pressure moves
When the propelling load of Force system substantially alleviates；Or the isometrical and constant speed drilling cuttings of boring and coal dust output, are significantly greater than course feed
When the drilling cuttings of cutting and coal dust discharge capacity；Or during boring top integrated synthesis pore-forming operation, gas or two occurs between drilling rod and sleeve pipe
During the ejection phenomenon of carbon oxide gas；Illustrate to run into herein or have found coal seam potential energy body, boring will be stopped immediately and make with push pipe
The propelling of industry, and be transferred to coal dust with pressure and gas or the discharge program of carbon dioxide on the spot, utilize the braking of auger stem with
Discharge function, until this no longer has the gas emptyings such as coal dust and gas in holing, and the concentration of gas or carbon dioxide reaches
To or specify less than " safety regulations in coal mine " standard time.
Implement also should include before step 5: position, the hole design of boring should on the basis of the center of coal seam thickness, spacing and
Whole pitch-row from should be less than the thickness in coal seam, the security protection scope of stone door punching coal boring, should with crossdrift profiled outline up and down, left and right
On the basis of the edge met head on, its protection distance is not less than 5 times of coal seam thickness；Coal rock tunnel driving boring security protection away from
From, on the basis of roadway's sides and the edge of three of meeting head on, no less than 5 times of coal seam thickness.
Step 106: when carrying out pressure release discharge, coal dust should supply water depositing dust, and gas enters pipe special or safe return aircourse.
Fig. 2 is the structural representation realizing " boring top one rigs against outburst device " of the present invention, this device Shen
Please Chinese utility model patent, Application No.: 2016201656120, be primarily adapted for use in complicated seam boring and pore-forming.
In figure: structure-steel framing 1, rig girder 2, running motor 3, driving means support 4, road wheel 5, chassis 6, slew gear
7, guide advance seat 8, main guide rail 9, bore top cover pipe and advance rail 10, guide pipe 11, push rod slider mechanism 12, slide 13, drilling rod pushes away
Enter jack 14, bore top cover pipe and advance jack 15.
This top integration protrusion-dispelling of boring bores top one rigs against outburst device, by girder, drive mechanism, walking mechanism, revolution
Mechanism, guide propulsive mechanism, push rod slider mechanism and bore the compositions such as top cover pipe mechanism.
Slew gear is arranged in the upper plane of rig girder, and chassis is arranged on slew gear, and chassis is added equipped with knot
Framework；Chassis and structure-steel framing structure are integral, move with slew gear and coordinate；
The main orbit guided in propulsive mechanism of guider is arranged on structure-steel framing, equipped with being slidably matched with it on main orbit
Boring top cover pipe and advance track, guide pipe fixed mount is contained on main orbit, guides advance seat and is arranged on brill top cover pipe propelling track；
Slide is placed in guiding advance seat rear, and and bores between top cover pipe propelling track as being slidably matched；On the structure-steel framing at slide rear
It is provided with drilling rod advance jack and bore top cover pipe propelling jack；Boring top cover pipe advances jack be arranged on main orbit and bore top
Sleeve pipe advances on track, and drilling rod advances jack to be arranged on brill top cover pipe and advances on track and slide；Many group push rod slider mechanism
The both sides of main orbit it are distributed in along main orbit length direction；Many group push rod slider mechanism are separately mounted to structure-steel framing and bore top cover pipe
Advance between track；Boring top cover pipe mechanism to include expansion bit, bore top cover pipe and drilling rod, expansion bit links into an integrated entity with drilling rod
Structure, bores top cover pipe box and is contained in outside drilling rod；Whole brill top cover pipe mechanism is arranged on inside guiding advance seat.
Each jack connects respectively at hydraulic control station, and hydraulic control station provides hydraulic power for this device.
Be set with sleeve pipe propulsive mechanism in the sliding sleeve of pusher slide covering device, the two ends of push rod jack respectively with push rod sliding sleeve
Connect with sleeve pipe propulsive mechanism, provide vertical, level, oblique support force for boring top one rigs against outburst device.
Fig. 3 is the present invention carrying out holing, the comprehensive pore-forming of push pipe with digging coal seam is carried out in safety verification boring procedure,
During as found coal body front with the presence of the situation of coal seam potential energy body, can be the coal dust discharged in potential energy body and gas or carbon dioxide
Carry out the structural representation of " coal and the gas segregation apparatus " of safety discharge, as it is shown on figure 3, " coal and gas segregation apparatus " bag
Include: coal dust drainage conduit device 16, coal and gas segregation apparatus main body 17, depositing dust water supply installation 18, gas concentration monitoring instrument 19, watt
This flow instrument 20, drawing-off gas pipe device 21.Coal dust drainage conduit device 16 connects with gas segregation apparatus main body 17 with coal, gas
Drain pipe arrangements 21 connects with gas segregation apparatus main body 17 with coal, depositing dust water supply installation 18, gas concentration monitoring instrument 19, gas
Flow instrument 20 is separately mounted on drawing-off gas pipe device 17.
The process of coal seam potential energy body physical explosion preventing and treating is: utilize " boring top one rigs against outburst device ", and " coal and gas
Segregation apparatus " during carrying out boring and push pipe, find coal seam potential energy body and synchronize in time implement to arrange powder and letting out to it
Pressure operation, in order to eliminating its physical explosion risk factor, its process is: first the most steady at brill top one rigs against outburst device
Gu on the basis of Hou, give boring location, drilling depth and the distance bored between the one rigs against outburst device of top enough by guider
When accommodating the length changing installation and minimum casing joint device of " coal and gas segregation apparatus ", with " coal separates dress with gas
Put " displace original guider, then proceed by boring and push pipe integrated synthesis pore-forming operation, bore top operation
Cheng Zhong, as occurred: the propelling of drilling rod is the most laborsaving, or when fltting speed is very fast；And the jacking load of sleeve pipe is obviously reduced, i.e.
When the load of hydraulic power system substantially alleviates；Or the output of the isometrical and constant speed drilling cuttings of boring, is significantly more than feeding cutting
Drilling cuttings and coal dust discharge capacity time；Or during boring top integrated synthesis pore-forming operation, gas or dioxy occur between drilling rod and sleeve pipe
When changing the ejection phenomenon of the gases such as carbon, the propelling operation of boring and push pipe to be stopped immediately, proceed to coal dust with pressure and gas on the spot
Or the discharge program of carbon dioxide, until this no longer has coal dust to discharge with gas or carbon dioxide in holing, or watt
Till when this concentration with carbon dioxide reaches the concentration specified less than " safety regulations in coal mine ", make by above-mentioned brill apical pore the most again
Industry program and technology requirement, carry out safety verification to neighboring holes position, until the sign existed with first above-mentioned potential energy body of generation,
And on the basis of the position, hole eliminated danger by pressure release, according to situations such as coal seam thicknesses, carry out emanant expansion danger to surrounding and test
Card boring scope, until after each checking boring entirely reaches same even depth or the slightly deep certain depth that discharge terminates hole, still not having
The size of the scale of coal seam potential energy body and volume in this work surface safety range is may determine that when occurring above-mentioned abnormal phenomena；
And the physical explosion that the most completely eliminated potential energy body is dangerous, if within boring apical pore security protection range profile, coal
Pneumatic potential energy in layer potential energy body confirms by thorough pressure release, then the danger of coal seam potential energy body physical explosion is also the most thoroughly got rid of
, thus bore top integrated synthesis drilling technique and method, except can be in potential energy body while boring with push pipe operation
Outside pressure eliminates, more can thoroughly stop the generation of coal seam potential energy body physical explosion accident during operation, the most thoroughly avoid at present
People during carrying out protrusion-dispelling boring, blasting coal mining, stone door punching coal and coal (rock) lane excavation operation, coal and gas prominent accident
Generation, it is achieved prevent and treat coal seam potential energy body physical explosion, the i.e. reliability of coal and gas prominent during operation and reach 100%, and greatly
Big simplification tradition protrusion-dispelling program and protrusion-dispelling cost, and while realizing high safe efficient rate, strive for low cost and raising
The economic benefit of coal enterprise.
In a preferred embodiment, the concretely comprising the following steps of the prevention and controls of coal seam potential energy body physical explosion:
1, first according to the homework type of coal digging, coal seam thickness and coal seam situation of change, determine and to carry out holing and push pipe
Technical specification and the requirements such as the bore position of operation, hole count and the projected depth of each boring, angle.
2, determine rig specification and model according to the size of bore operation drift section, bore top one rigs against outburst device root
Have according to the difference of drift section: ZDY3200S (A)-6, ZDY4500S (A)-9, ZDY6000S (A)-12, ZDY8500S (A)-15,
Different specifications and the models such as ZDY1200S (A)-18.
3, after rig model determines selected by Kong Weiyu, the comprehensive pore-forming operation boring apical pore with potential energy body pressure release can be carried out
, first with hydraulic power system be horizontal support, vertical support and skewed horizontal load device provide power, and make its support force
Reach maximum, allow brill top one rigs against outburst device become rigid body with tunnel environment, bore rig during apical pore operation to ensure
Stability and being perfectly safe of operating personnel.
4, after brill top one rigs against outburst device completes steady machine, just can be by the boring of adjustable angle and push pipe rail set
Be directed at holed position together with guider, then first by self-pressing type expansion bit under the drive of drilling rod, to drilling in coal
After the maximum propelling stroke of 2-3 run of steel or 2-3 boring, pull down guider, change " coal and gas segregation apparatus "
Save sleeve pipes with connecting a joint or two, carry out the propelling integration of operation of propelling and the sleeve pipe holed the most again, creeping into one like this
After the distance of root drilling rod distance and jacking casing joint, drilling rod and sleeve pipe adjunction simultaneously, during boring top, drilling rod and drill bit will be all the time
Beyond sleeve pipe certain distance.
If 5 above-mentioned constantly bore top towards depths, coal seam during, occur that the propelling of drilling rod is the most laborsaving, or
Fltting speed is the fastest；And the jacking load of sleeve pipe is when significantly reducing, when i.e. the propelling load of hydraulic power system substantially alleviates；
Or the output of the drilling cuttings of the isometrical and constant speed of boring, is significantly greater than the output of the drilling cuttings that course feed cuts；Or bore top one
During changing comprehensive pore-forming, when the ejection phenomenon of the gas such as gas or carbon dioxide occurs between drilling rod and sleeve pipe, illustrate to meet herein
Arrive potential energy body, the propelling of boring and push pipe operation will have been stopped immediately, and be transferred to coal dust with pressure and gas or titanium dioxide on the spot
The discharge program of carbon, utilizes braking and the discharge function of auger stem, until this no longer has coal dust to discharge with gas etc. in holing
Till, and gas or gas concentration lwevel are at or below till the standard that " safety regulations in coal mine " specifies.
If 6 certain boring occur in that the pneumatic potential energy in above-mentioned abnormal phenomena or potential energy body is eliminated by pressure release
Its danger, then the possible scale of its potential energy body will be judged and to be holed by pressure release according to situations such as coal seam thicknesses herein
On the basis of repeat the comprehensive pore-forming operation of above-mentioned brill top in suitably distance about, in order to the coal seam potential energy body found
Scale visit clear and the compression potential energy of its internal gas or the right gas of titanium dioxide the most thoroughly released, thus stop coal seam
The physical explosion accident of potential energy body, it is ensured that the life of operating personnel and the safety of property.
From the foregoing, it will be observed that the embodiment of the present invention has the advantage that
1, the present invention is by boring the horizontal support technology of top one rigs against outburst device, equal to the roadway's sides at bore operation
Space has been connected in together, and former people Gas Outburst event of hurting sb.'s feelings when carrying out protrusion-dispelling bore operation will become history, i.e. bore top
Push away brokenly rib by thoroughly stopping coal seam potential energy body during the operation of hole, and the generation of physical explosion casualty accident occurs.
2, the present invention is by boring top integrated synthesis hole creating technology, by the bit freezing in period that makes in the past to hole, crown drill, embrace bore,
And the rig over loading phenomenon out of control with spray orifice will thoroughly be changed, this is because have set to manage and protect outside auger stem, not with coal
Wall directly touches, and the extruding force in coal seam etc. all be assume responsibility for by sleeve pipe.
3, the present invention is by the gas in the coal seam potential energy body holed and can disposably will run into and find during push pipe
Enter special gas pumping (putting) pipeline with coal dust synchronous closed with pressure or safety enters mine return air system, thus avoid
The dangerous generation of face gas concentration over-standard, it is ensured that operating personnel the environmental work being perfectly safe,
4, the present invention uses brill top integrated synthesis hole creating technology, carries out the safety verification in coal seam and work surface, with coal seam potential energy
The detection of the apical pore formula of directly boring whether body exists, except finding potential energy body during boring apical pore, and can utilize spiral
The discharge of drilling rod and braking function, outside clearing potential energy gas object and solids once safety, and have more those with passing
System drilling technique can not creep into or Kelly Stubb boring difficulty the most out, or the complicated seam having the tax of potential energy body to deposit carries out forcing to bore
Top integration pore-forming, and the function that the energy of its internal potential energy body is got rid of in time, so in the integration of the brill top of the present invention
In face of hole creating technology, the chance of coal seam potential energy body physical explosion will thoroughly disappear, thus 100% stop bore operation, or other
The target of coal seam potential energy body physical explosion accident during mining work activities can realize.
The above, be only the preferred embodiment of the present invention, it should be pointed out that for the ordinary skill people of the art
For Yuan, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (6)
1. a prevention and controls for coal seam potential energy body physical explosion, the method utilize " bore top one rigs against outburst device ", " coal with
Gas segregation apparatus " operation, it is characterised in that described method comprises the steps:
Step one, determines the position boring apical pore, the degree of depth, hole count and boring angle according to different work type and coal seam thickness situation
Degree, and the whole pitch-row of two pitchs of holes and holes from；
Step 2, on the basis of step one, carries out level by hydraulic power system for brill top one rigs against outburst device and props up
Support, vertical support, for rear portion skewed horizontal load device jack provide hydraulic power, in order to make brill top one rigs against outburst device
An entirety is become with tunnel；
Step 3, bores the guider location of top one rigs against outburst device, is drilling equipment and top by hydraulic power system
Pipe propulsion plant provides power, under the drive of drilling equipment with the effect of propulsion plant, coal seam is carried out reference type and creeps into,
And lay the first stone for casing bit and jacking operation simultaneously；
Step 4, on the basis of step 3, after the distance of drilling depth Yu jacking reaches to be sized, by " coal with
Gas segregation apparatus " replace guider, after the preparation carrying out safety relief, formally bore the operation of apical pore；
Step 5, drilling depth constantly advance with sleeve pipe continuous by jacking during, row to be advanced according to rig maximum
Journey adds stacks and sleeve pipe at any time, until the degree of depth on hole drill top to engineering design.
The prevention and controls of coal seam the most according to claim 1 potential energy body physical explosion, it is characterised in that implement step one it
Front environmental condition is: ensure bore operation place and environment well-ventilated, and the concentration of various harmful gass meets " safety of coal mines rule
Journey " relevant regulations, and possess water supply with compressed air self-help with escape safety guarantee facility.
The prevention and controls of coal seam the most according to claim 1 and 2 potential energy body physical explosion, it is characterised in that implement step
Environmental condition before one also includes: boring ickings ensures continual supply with coal dust and depositing dust water；Gas monitor device
Working properly, and network with monitoring mining monitoring system, being exported between bore operation of Gas-Flow is not leaked electricity the depositing of hidden danger
, to guarantee the safety dumping of gas.
The prevention and controls of coal seam the most according to claim 1 and 2 potential energy body physical explosion, it is characterised in that implement step
Environmental condition before one also includes: the position, hole of boring is designed on the basis of the center of coal seam thickness, and spacing and whole pitch-row are from little
In the thickness in coal seam, the security protection scope of stone door punching coal boring, upper and lower, the left and right of crossdrift profiled outline with the edge met head on are
Benchmark, its protection distance is more than or equal to 5 times of (being not less than) coal seam thickness；Coal (rock) lane driving boring security protection distance with
On the basis of roadway's sides and the edge of three of meeting head on, more than or equal to 5 times of (being not less than) coal seam thickness.
5. according to the prevention and controls of the coal seam potential energy body physical explosion described in claim, it is characterised in that described step 5
In, during carrying out gas pumping (putting) hole and safety verification hole, drilling rod, sleeve pipe, hydraulic system, boring isometrical with etc.
The speed output of drilling cuttings, when improper phenomenon occurring between drilling rod and sleeve pipe, the propelling of boring and push pipe operation to be stopped immediately,
And it is transferred to coal dust with pressure and gas or the discharge program of carbon dioxide on the spot, utilize braking and the discharge function of auger stem,
Until this no longer has the gases such as coal dust and gas to discharge in holing, and the concentration of gas or carbon dioxide reaches, and " colliery is pacified
Full code " till the standard that specifies.
The prevention and controls of coal seam the most according to claim 1 potential energy body physical explosion, it is characterised in that described coal and gas
Segregation apparatus includes: coal dust drainage conduit device, coal and gas segregation apparatus main body, drawing-off gas pipe device；Coal dust drainage conduit fills
Putting and connect with gas segregation apparatus main body with coal, drawing-off gas pipe device connects with gas segregation apparatus main body with coal, and depositing dust supplies
Water device, gas concentration monitoring instrument, gas flow instrument are separately mounted on drawing-off gas pipe device.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117787728A (en) * | 2024-02-27 | 2024-03-29 | 贵州省煤层气页岩气工程技术研究中心 | Coal mine roadway gas explosion risk level evaluation method based on visualization |
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Inventor after: Chen Fengping Inventor after: He Youguo Inventor after: Liu Zhiwen Inventor after: Xu Weiwei Inventor after: Han Guowei Inventor after: Zhang Dongyang Inventor after: Cao Haihua Inventor before: Chen Fengping Inventor before: He Youguo Inventor before: Liu Zhiwen Inventor before: Xu Weiwei Inventor before: Han Guowei Inventor before: Cao Haihua |
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Application publication date: 20160831 |
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| RJ01 | Rejection of invention patent application after publication |