CN110279959A - A kind of extinguishing method for spontaneous combustion of coal gangue hill - Google Patents
A kind of extinguishing method for spontaneous combustion of coal gangue hill Download PDFInfo
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- CN110279959A CN110279959A CN201910402503.4A CN201910402503A CN110279959A CN 110279959 A CN110279959 A CN 110279959A CN 201910402503 A CN201910402503 A CN 201910402503A CN 110279959 A CN110279959 A CN 110279959A
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/06—Fire prevention, containment or extinguishing specially adapted for particular objects or places of highly inflammable material, e.g. light metals, petroleum products
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
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Abstract
The invention belongs to coal mine fire fighting fields, are related to a kind of mine fire-fighting method, specially a kind of extinguishing method for spontaneous combustion of coal gangue hill.Method includes the following steps: setting pipe network in gangue massif middle berth first, then it if it is detected that when certain regional temperature is greater than or equal to 350 DEG C, determines that the point is ignition point, then penetrates through main line and bye-pass, it is finally precisely in the milk to fire area, completes fire-fighting work.The present invention can be realized slip casting and thermometric share pipeline, can effectively avoid the problem of drilling difficulty during fluid injection fire-fighting, realize efficient slip casting by using the method for pipeline pre-buried in coal gangue hill；Fire area can effectively be determined to the monitoring of temperature using the thermometric route of arrangement simultaneously, realize accurate slip casting, to securely and reliably, can grasp best fire extinguishing period, fire-fighting efficiency is high, good extinguishing effect.
Description
Technical field
The invention belongs to coal mine fire fighting fields, are related to a kind of mine fire-fighting method, specially a kind of to be used for coal gangue hill certainly
The extinguishing method of combustion.
Background technique
Gangue is the solid waste discharged during mine coal mining process and coal washing, be one kind in coalification course with coal
The black and gray rock of layer association, yield account for about the 10% ~ 20% of coal production, at present existing more than 1500 seat of hillock in the whole nation, heap
3,000,000,000 tons of accumulated amount or more, account for 40% or more of Chinese industrial solid waste total emission volumn.Coal gangue hill not only land occupation resource,
Ecological environment is influenced, and contains certain combustible in gangue, is easy to happen spontaneous combustion under appropriate conditions.Work as gangue
After the spontaneous combustion of mountain, a large amount of toxic and harmful gas pollution air can be not only generated, it is destructive bigger more likely to cause explosion etc.
Accident, cause extremely serious consequence, thus quickly, effectively, accurately to carry out fire extinguishing to the coal gangue hill of spontaneous combustion be to pass
Important.
3 indispensable conditions of gangue spontaneous combustion are that gangue has spontaneous combustion tendency, at normal temperature can well with oxygen
Gas is combined；There is sufficient oxygen supply and possesses good heat accumulation condition.The oxygen supply condition of coal gangue hill is to Spontaneous Combustion of Coal Gangue
Play decisive role.According to oxygen supply and accumulation of heat condition, hillock can be divided into 3 regions: (1) not spontaneous combustion area:
Hillock surface can also continue that chronic oxidation reaction occurs, exothermic heat of reaction dissipates quickly although constantly there is oxygen supply
It loses in ambient enviroment, is not enough to cause spontaneous combustion.(2) suffocate area: inside hillock, oxygen purity very little in air,
It is seldom that heat is discharged in oxidation reaction process, spoil will not be enabled to heat up substantially, therefore spontaneous combustion will not occur for this region, this region
For the area that suffocates.(3) possible spontaneous combustion area: between not spontaneous combustion area and asphyxia area, existing certain oxygen supply, generated heat
It will not all be taken away by outside air, the heat for aoxidizing generation enables spoil heat up, referred to as may spontaneous combustion area.In coal mine, generally
The coal gangue hill height of accumulation molding is 60m or so, and wherein the packing radius of coal gangue hill can reach 50m or so, coal gangue hill
Asphyxia area be packing radius about 25m penetralia gangue massif, the surface layer of coal gangue hill 5m or so is not spontaneous combustion area,
The gangue massif to suffocate between area and not spontaneous combustion area is possible spontaneous combustion area, and the thickness in possible spontaneous combustion area is about 20m or so.
So we concentrate on possible spontaneous combustion area for the fire extinguishing survey region of spontaneous combustion of coal gangue hill.
The coal gangue hill extinguishing method that is widely used both at home and abroad is slip casting method at present, deep hole grouting fire-fighting technique it is many from
Good effect is all achieved in the coal gangue hill fire extinguishing of combustion.But the accumulation of gangue is broken and random, leads to slip casting method
The first big problem be that drilling is difficult.The piling height of coal gangue hill is up to 60m or more, since the randomness that spontaneous combustion occurs causes
Fire area possibly is present in each height, so drilling depth is possible to from more than ten meters or even tens meters, and it is existing
Drilling technique is difficult to reach requirement, technically exists obvious insufficient.Furthermore the second largest problem of slip casting method is to be difficult to determine kindling
Point.The accurate of ignition point determines the effect for being directly related to fluid injection fire-fighting.The spontaneous combustion complicated mechanism of coal gangue hill, and accumulation body
Product is excessive, and spontaneous combustion generation causes to be difficult to determine fire area inside coal gangue hill, and the effect of fluid injection fire-fighting is caused to have a greatly reduced quality.
Common coal gangue hill fire extinguishing is that staff by virtue of experience probably determines that firing range carries out fluid injection fire-fighting, and this construction is often
Best fire extinguishing opportunity can be delayed, fire-fighting efficiency is poor.
Summary of the invention
It is an object of the invention to solve the drilling of fluid injection fire-fighting method described in background technique difficulty, ignition point is difficult to really
Fixed problem provides a kind of extinguishing method for spontaneous combustion of coal gangue hill, i.e., in the pre-buried pipe network of coal gangue hill, can be realized note
Slurry shares pipeline with thermometric, by detecting coal gangue hill full temperature to realize to the accurate slip casting in fire area, safely may be used
It leans on, can grasp best fire extinguishing period, fire-fighting efficiency is high, good extinguishing effect.
The present invention the technical solution to solve the technical problem is that: a kind of extinguishing method for spontaneous combustion of coal gangue hill, including
Following steps:
S1: setting pipe network in gangue massif middle berth first, and the pipe network includes main line and bye-pass, the main line it is vertical and
Through the middle part that gangue massif is arranged in, the main line is connected in vertical range at interval of 2.5 ~ 5m in the horizontal direction
10 ~ 16 bye-passes, all bye-passes in same level are arranged circumferentially and are formed bye-pass layer, institute along main line
There is the free end of bye-pass to all extend in the massif away from 2 ~ 4m of coal gangue hill outer surface, the bye-pass is made of floral tube；Institute
State the main thermometric metal wire and branch thermometric metal wire for being respectively arranged with and being connected in main line and bye-pass, branch thermometric metal wire energy
It detects the temperature information of coal gangue hill specific location and total measuring station is pooled to by main thermometric metal wire in real time；All
At least two layers paraffin insulating course for separating bye-pass along section, all stones in same bypass duct are provided in pipeline
Wax insulating course is connected with copper metal bar；Supervisor's insulating course is provided in the main line of each branch tube layer upper end,
Supervisor's insulating course includes paraffin layer and cement layer setting up and down；Branch thermometric metal wire is numbered, with main line phase
Number consecutively is i to different bye-pass layers even from top to bottom1、i2、i3……ip, the every bye-pass difference of every layer of bye-pass layer
Number is j1、j2、j3……jq, and then the number of branch thermometric metal wire is Apq
S2: as ApqWhen the temperature detected at item branch thermometric metal wire is greater than or equal to 350 DEG C, then pth layer bye-pass is confirmed
Spontaneous combustion occurs in gangue massif at the q root bye-pass of layer, that is, realizes the accurate positionin to fire area；
S3: then start melt main line in preceding p layer supervisor's insulating course, each layer be first with hot water thawing paraffin layer, then
With acetate dissolution cement layer, hot water and acetic acid p times is used alternatingly, until preceding p layers of supervisor insulating course is penetrated through；Pth layer bye-pass
Paraffin insulating course in the q root bye-pass of layer has melted due to the conductive force of copper metal bar, then from main line entrance to
The q root bye-pass of pth layer bye-pass layer is all switched on:
S4: being finally precisely in the milk to fire area, completes fire-fighting work.
In step S1, the main line is connected with 10 ~ 16 branch in the horizontal direction in vertical range at interval of 2.5 ~ 5m
Pipeline then sees that the pipe network is arranged in divergence expression on the whole, then pipe network is in the gangue massif, when generation fire behavior
When, it can be achieved with fixed point slip casting；The free end of all bye-passes all extends in the massif away from 2 ~ 4m of coal gangue hill outer surface, because
The surface layer of 5m for coal gangue hill or so is not spontaneous combustion area, therefore the free end of bye-pass is extended to away from 2 ~ 4m of coal gangue hill outer surface
Massif in；The bye-pass is made of floral tube, and through-hole is evenly equipped on the tube wall of floral tube so that slurries is flowed to coal gangue hill
In body；Branch thermometric metal wire can detect the temperature information of coal gangue hill specific location and be converged in real time by main thermometric metal wire
Collect total measuring station, this makes it possible to realize to be accurately positioned coal gangue hill internal fires point；The bye-pass of fire area
In paraffin insulating course when encountering high temperature can spontaneous combustion melt, when paraffin separate melting layer after, place bye-pass just penetrates through,
Facilitate slurry flow, but other bypass ducts in same branch tube layer have no through, thus be arranged in bye-pass paraffin every
Tomography is to avoid slurries from carrying out slip casting into all bye-passes of same layer bye-pass layer in order to avoid wasting slurries；Positioned at same
All paraffin insulating courses in one bypass duct are connected with copper metal bar because bye-pass is longer, sometimes on bye-pass certain
Spontaneous combustion occurs for the gangue massif of one position, in order to which this root bye-pass is connected, by the copper metal bar phase of all paraffin insulating courses
Connection, copper have preferable thermal conductivity, the temperature of fire area can be transmitted to rapidly to the whole body of copper metal bar, the thermally conductive system of copper
Number is 377W/mK, and for the temperature of fire area at 350 DEG C or more, the temperature of heat transfer can be rapidly achieved melting point of paraffin wax completely
And the paraffin in same bypass duct is separated into melting layer；Be provided in the main line of each branch tube layer upper end supervisor every
Tomography, supervisor's insulating course include paraffin layer and cement layer setting up and down, in main line setting supervisor's insulating course in order to
Ensure that the slurries infused when fluid injection fire-fighting can accurately reach fire area rather than reach lowermost end under the effect of gravity；Supervisor's partition
Layer includes paraffin layer and cement layer, and the cement layer is to play the role of partition, setting, and the paraffin layer plays partition
Effect is prevented when insulating course is responsible in perforation, and acetic acid is reacted with the cement layer of extra supervisor's insulating course；It is connected with main line
Number consecutively is i to different bye-pass layers from top to bottom1、i2、i3……ip, every bye-pass of every layer of bye-pass layer numbers respectively
For j1、j2、j3……jq, and then the number of branch thermometric metal wire is Apq, the branch thermometric metal wire in every layer of every bypass duct is equal
There is different numbers, therefore the number for compareing branch thermometric metal wire can correspond to different bypass ducts, can be achieved with to ignition point essence
Certainly position.
Preferably, in the step S1, pipe network is set in gangue massif middle berth method particularly includes: when coal gangue hill starts
When accumulation, the main line of a length of 2.5 ~ 5m of pth section is erect in the middle part of the position of accumulation coal gangue hill in advance, then starts to accumulate bastard coal
Stone connects pth layer bye-pass layer on the top of pth section main line when the height of coal gangue hill is flushed with pth section main line,
Pth layer bye-pass layer and then connection -1 section main line of pth are connected, then accumulates gangue and connection -1 layer of branch of pth again
Pipeline layer repeats the above method, until having set pipe network in gangue massif middle berth.When the height and pth section of coal gangue hill are responsible for
When road flushes, pth layer bye-pass layer is connected on the top of pth section main line, then coal gangue hill can rise to pth layer bye-pass layer
The effect of upward support, similarly lays pipe network in layer.
Preferably, supervisor's insulating course occurs to need to be laid with again after spontaneous combustion perforation in coal gangue hill, is laid with
Method is first to do a cement layer more slightly smaller than main line diameter, on it fixed at least three ropes, with rope by cement layer
The suitable position for hanging in main line, then pours paraffin layer, using the mobility and adhesiveness of paraffin by cement layer and main line
Between gap fill up and fixed, form new supervisor's insulating course.Paraffin insulating course in bye-pass is sent out in coal gangue hill
It is born from after combustion melts and does not need to be laid with again, the reason is that before the gap quilt in the coal gangue area of spontaneous combustion occurred
The slurries injected when fire extinguishing are filled without having Oxygen Condition, and secondary spontaneous combustion will not occur.And supervisor's insulating course in main line
It needs to reset, this is in order to which after spontaneous combustion occurs for the other positions of coal gangue hill, the method for the invention can also be weighed
It is multiple to utilize.
Preferably, the cement layer is matched by 93% ~ 97% calcium carbonate and 3% ~ 7% silicate, 93% ~ 97% carbon
Sour calcium be in order to and acetic acid reaction, 3% ~ 7% silicate be in order to be formed, generated after calcium carbonate and acetic acid reaction calcium acetate and
Carbon dioxide gas.
The beneficial effects of the present invention are: by using the method for pipeline pre-buried in coal gangue hill, can be realized slip casting with
Thermometric shares pipeline, can effectively avoid the problem of drilling difficulty during fluid injection fire-fighting, realize efficient slip casting；Cloth is utilized simultaneously
The thermometric route set can effectively determine fire area to the monitoring of temperature, realize accurate slip casting, to securely and reliably, can hold
It firmly most preferably puts out a fire period, fire-fighting efficiency is high, good extinguishing effect.
Detailed description of the invention
Fig. 1 is coal gangue hill pipeline distribution overall structure diagram of the invention.
Fig. 2 is coal gangue hill pipeline distribution overlooking structure diagram of the invention.
Fig. 3 is the partial structural diagram of main line and bye-pass of the invention.
In figure: 1- main line；2- bye-pass；The main thermometric metal wire of 3-；4- branch thermometric metal wire；5- paraffin insulating course；6-
Copper metal bar；7- paraffin layer；8- cement layer.
Specific embodiment
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to skill of the invention
Art scheme is described in detail.Obviously, described embodiments are only a part of the embodiments of the present invention, rather than all real
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art without making creative work gained
The every other embodiment arrived belongs to the range that the present invention is protected.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, or be somebody's turn to do
Invention product using when the orientation or positional relationship usually put, be merely for convenience of description of the present invention and simplification of the description, without
It is that the device of instruction or hint meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore
It is not considered as limiting the invention.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and cannot
It is interpreted as indicating or implying relative importance.
Referring to attached drawing 1,2,3, now a kind of extinguishing method for spontaneous combustion of coal gangue hill provided by the invention is illustrated.
A kind of extinguishing method for spontaneous combustion of coal gangue hill, comprising the following steps:
S1: setting pipe network in gangue massif middle berth first, as shown in Figure 1, the pipe network includes main line 1 and bye-pass 2, it is described
Main line 1 is vertical and through the middle part that gangue massif is arranged in, and the main line 1 is in vertical range at interval of the edge 2.5 ~ 5m
Horizontal direction is connected with 10 ~ 16 bye-passes 2, being arranged circumferentially along main line 1 of all bye-passes 2 in same level
And bye-pass layer is formed, the free end of all bye-passes 2 all extends in the massif away from 2 ~ 4m of coal gangue hill outer surface, the branch
Pipeline 2 is made of floral tube；The main thermometric metal wire 3 and branch thermometric being connected are respectively arranged in the main line 1 and bye-pass 2
Metal wire 4, branch thermometric metal wire 4 can detect the temperature information of coal gangue hill specific location and by main thermometric metal wires 3
It is pooled to total measuring station in real time；At least two layers is provided in all bye-passes 2 to separate bye-pass 2 along the paraffin that section separates
Layer 5, all paraffin insulating courses 5 in same bypass duct are connected with copper metal bar 6；Positioned at each branch tube layer upper end
Main line 1 in be provided with supervisor's insulating course, supervisor's insulating course includes paraffin layer 7 and cement layer 8 setting up and down；It is right
Branch thermometric metal wire 4 is numbered, and number consecutively is i to the different bye-pass layers being connected from main line 1 from top to bottom1、i2、
i3……ip, it is j that the every bye-pass 2 of every layer of bye-pass layer is numbered respectively1、j2、j3……jq, and then branch thermometric metal wire 4
Number is Apq；
S2: as ApqWhen the temperature detected at item branch thermometric metal wire 4 is greater than or equal to 350 DEG C, then pth layer branch pipe is confirmed
Spontaneous combustion occurs in gangue massif at the q root bye-pass 2 of road floor, that is, realizes the accurate positionin to fire area；
S3: and then start to melt preceding p layers of supervisor's insulating course in main line 1, each layer is first to melt paraffin layer 7 with hot water,
Acetate dissolution cement layer 8 is used again, hot water and acetic acid p times is used alternatingly, until preceding p layers of supervisor insulating course is penetrated through；Pth layer branch pipe
Paraffin insulating course 5 in the q root bye-pass 2 of road floor is since the conductive force of copper metal bar 6 has been melted, then from main line 1
The q root bye-pass 2 of entrance to pth layer bye-pass layer is all switched on:
S4: being finally precisely in the milk to fire area, completes fire-fighting work.
In step S1, the main line 1 is connected with 10 ~ 16 branch in the horizontal direction in vertical range at interval of 2.5 ~ 5m
Pipeline 2 then sees that the pipe network is arranged in divergence expression on the whole, then pipe network is in the gangue massif, when generation fire behavior
When, it can be achieved with fixed point slip casting；The free end of all bye-passes 2 all extends in the massif away from 2 ~ 4m of coal gangue hill outer surface,
Because the surface layer of the 5m of coal gangue hill or so is not spontaneous combustion area, therefore the free end of bye-pass 2 is extended to away from coal gangue hill outer surface 2
In the massif of ~ 4m；The bye-pass 2 is made of floral tube, and through-hole is evenly equipped on the tube wall of floral tube so that slurries is flowed to bastard coal
In tor body；Branch thermometric metal wire 4 can detect the temperature information of coal gangue hill specific location and by main thermometric metal wire 3
It is pooled to total measuring station in real time, this makes it possible to realize to be accurately positioned coal gangue hill internal fires point；Fire area
The meeting spontaneous combustion thawing when encountering high temperature of paraffin insulating course 5 in bye-pass 2, after paraffin insulating course 5 melts, place bye-pass
2 just penetrate through, and facilitate slurry flow, but other bypass ducts in same branch tube layer have no through, so in bye-pass 2
Setting paraffin insulating course 5 is to avoid slurries from carrying out into all bye-passes 2 of same layer bye-pass layer in order to avoid wasting slurries
Slip casting；All paraffin insulating courses 5 in same bypass duct are connected with copper metal bar 6, because bye-pass 2 is longer, are had
When bye-pass 2 on a certain position gangue massif occur spontaneous combustion all paraffin are separated in order to which this root bye-pass 2 is connected
Layer 5 is connected with copper metal bar 6, and copper has preferable thermal conductivity, the temperature of fire area can be transmitted to rapidly copper metal
The whole body of stick 6, the thermal coefficient of copper are 377W/mK, and the temperature of fire area at 350 DEG C or more, completely may be used by the temperature of heat transfer
The paraffin insulating course 5 in same bypass duct is melted with being rapidly achieved melting point of paraffin wax；Positioned at each branch tube layer upper end
Supervisor's insulating course is provided in main line 1, supervisor's insulating course includes paraffin layer 7 and cement layer 8 setting up and down, in master
Setting is responsible for insulating course in order to ensure the slurries infused when fluid injection fire-fighting can accurately reach fire area rather than in gravity in pipeline 1
Effect is lower to reach lowermost end；Supervisor's insulating course includes paraffin layer 7 and cement layer 8, and the cement layer 8 is to play partition, determine
Shape effect, the paraffin layer 7 plays the role of partition, prevents when insulating course is responsible in perforation, acetic acid and extra supervisor every
The cement layer 8 of tomography reacts；Number consecutively is i to the different bye-pass layers being connected from main line 1 from top to bottom1、i2、i3……ip,
It is j that the every bye-pass 2 of every layer of bye-pass layer is numbered respectively1、j2、j3……jq, and then the number of branch thermometric metal wire 4 is Apq,
Branch thermometric metal wire 4 in every layer of every bypass duct has unused number, therefore compares the number energy of branch thermometric metal wire 4
Corresponding unused bypass duct, can be achieved with to ignition point precise positioning.
Further, as a kind of a kind of specific implementation of the extinguishing method for spontaneous combustion of coal gangue hill of the present invention
Mode in the step S1, sets pipe network in gangue massif middle berth method particularly includes: when coal gangue hill starts accumulation,
The main line 1 that a length of 2.5 ~ 5m of pth section is erect in the middle part of the position of pre- accumulation coal gangue hill, then starts to accumulate gangue, works as coal
When the height of hillock is flushed with pth section main line 1, pth layer bye-pass layer is connected on the top of pth section main line 1, is connected
Then pth layer bye-pass layer and then connection -1 section main line 1 of pth accumulate gangue and connection -1 layer of bye-pass of pth again
Layer repeats the above method, until having set pipe network in gangue massif middle berth.When the height and pth section main line 1 of coal gangue hill are neat
Usually, pth section main line 1 top connect pth layer bye-pass layer, then coal gangue hill can to pth layer bye-pass layer rise to
The effect of upper support, similarly lays pipe network in layer.
Further, as a kind of a kind of specific implementation of the extinguishing method for spontaneous combustion of coal gangue hill of the present invention
Mode, supervisor's insulating course occur to need to be laid with again after spontaneous combustion perforation in coal gangue hill, and laying method is first to do
One cement layer 8 more slightly smaller than 1 diameter of main line, fixed at least three ropes, hang in supervisor for cement layer 8 with rope on it
Then the suitable position on road 1 pours paraffin layer 7, will be between cement layer 8 and main line 1 using the mobility and adhesiveness of paraffin
Gap fill up and fixed, form new supervisor's insulating course.Paraffin insulating course 5 in bye-pass 2 occurs in coal gangue hill
Spontaneous combustion does not need to be laid with again after melting, the reason is that the gap occurred in the coal gangue area of spontaneous combustion is gone out before
The slurries injected when fiery are filled without having Oxygen Condition, and secondary spontaneous combustion will not occur.And supervisor's insulating course in main line 1 is
It needs to reset, this is in order to which after spontaneous combustion occurs for the other positions of coal gangue hill, the method for the invention can also be repeated
It utilizes.
Further, as a kind of a kind of specific implementation of the extinguishing method for spontaneous combustion of coal gangue hill of the present invention
Mode, the cement layer 8 are matched by 93% ~ 97% calcium carbonate and 3% ~ 7% silicate, 93% ~ 97% calcium carbonate be for
And acetic acid reaction, 3% ~ 7% silicate are that calcium acetate and carbon dioxide are generated after calcium carbonate and acetic acid reaction in order to be formed
Gas.
Further, as a kind of a kind of specific implementation of the extinguishing method for spontaneous combustion of coal gangue hill of the present invention
The thickness of mode, the paraffin insulating course 5, cement layer 8 and paraffin layer 7 is 4 ~ 10cm.It within this range can be just
It realizes respective effect, and material will not be wasted.
Further, as a kind of a kind of specific implementation of the extinguishing method for spontaneous combustion of coal gangue hill of the present invention
Mode, the main line 1 are grouting seamless steel pipe, and the bye-pass 2 is alternately laid with by floral tube and steel pipe interval 1m, the master
Pipeline 1 will bear impact force when biggish grouting, so being better able to meet intensity requirement with seamless steel pipe；The bye-pass
2 use floral tube and steel pipe interval 1m, and alternately laying is for save the cost, and the cost of the floral tube is higher than steel pipe.
Further, as a kind of a kind of specific implementation of the extinguishing method for spontaneous combustion of coal gangue hill of the present invention
Mode is coated with polytetrafluoroethylene ethylene layer on the main thermometric metal wire 3 and branch thermometric metal wire 4.The polytetrafluoroethylene ethylene layer energy
Enough high temperature resistants, resist various organic solvents at antiacid alkali resistant, and thermometric metal wire is avoided to be corroded under long-term environmental activity.
Further, as a kind of a kind of specific implementation of the extinguishing method for spontaneous combustion of coal gangue hill of the present invention
One layer of ethylene propylene diene rubber is wrapped up on mode, its surface of floral tube in the bye-pass 2.The ethylene propylene diene rubber is a kind of eutectic
Point plastics, the hole exposed on floral tube can be melted by encountering high temperature；Because bypass duct is very long, fire area may be in certain of bypass duct
On one section, so the through-hole conducting on the floral tube on fire area is only needed slurries can be made from bye-pass 2 in this way
It flows into pipeline in the gangue of kindling, and can prevent from leaking out in the floral tube of slurries never fire area, save injecting paste material,
More accurate slip casting can be carried out to fire area.
Further, as a kind of a kind of specific implementation of the extinguishing method for spontaneous combustion of coal gangue hill of the present invention
The nozzle of mode, 1 upper end of main line is equipped with end cap.It is foreign matter in order to prevent that nozzle in 1 upper end of main line, which sets end cap,
It is blocked into main line 1.
Further, as a kind of a kind of specific implementation of the extinguishing method for spontaneous combustion of coal gangue hill of the present invention
Mode, in step S1, the main line 1 is connected with 12 bye-passes 2 in the horizontal direction in vertical range at interval of 3m；It is all
The free end of bye-pass 2 all extends in the massif away from coal gangue hill outer surface 3m；Between the main line 1 and main line 1, lead
The connection types such as welding, flanged joint are all made of between pipeline 1 and bye-pass 2；The paraffin insulating course and paraffin layer are all made of
No. 52 paraffin.It is obtained by calculating and testing, takes above-mentioned design parameter that can play best extinguishing effect.Specific implementation
In, the caliber of main line 1 is 12 cun or 14 cun, and the caliber of bye-pass 2 is 4 cun, 5 cun or 6 cun.No. 52 paraffin melting points are lower,
It more sensitive can reflect the raising of temperature.
Embodiments of the present invention are explained in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned implementations
Mode within the knowledge of a person skilled in the art can also be without departing from the purpose of the present invention
It makes a variety of changes.
Claims (10)
1. a kind of extinguishing method for spontaneous combustion of coal gangue hill, which comprises the following steps:
S1: pipe network is set in gangue massif middle berth first, the pipe network includes main line (1) and bye-pass (2), the main line
(1) vertically and through the middle part that gangue massif is arranged in, the main line (1) is in vertical range at interval of 2.5 ~ 5m along water
Square to being connected with 10 ~ 16 bye-passes (2), all bye-passes (2) in same level along main line (1) it is circumferential uniformly
It arranges and forms bye-pass layer, the free end of all bye-passes (2) all extends in the massif away from 2 ~ 4m of coal gangue hill outer surface,
The bye-pass (2) is made of floral tube；The main thermometric gold being connected is respectively arranged in the main line (1) and bye-pass (2)
The temperature information of coal gangue hill specific location can be detected simultaneously by belonging to line (3) and branch thermometric metal wire (4), branch thermometric metal wire (4)
And total measuring station is pooled to by main thermometric metal wire (3) in real time；At least two layers is provided with by branch pipe in all bye-passes (2)
The paraffin insulating course (5) that road (2) separates along section, the copper metal of all paraffin insulating courses (5) in same bypass duct
Stick (6) is connected；Supervisor's insulating course, supervisor's partition are provided in the main line (1) of each branch tube layer upper end
Layer includes paraffin layer (7) and cement layer (8) setting up and down；Branch thermometric metal wire (4) is numbered, with main line (1) phase
Number consecutively is i to different bye-pass layers even from top to bottom1、i2、i3……ip, the every bye-pass (2) point of every layer of bye-pass layer
It Bian Hao not be j1、j2、j3……jq, and then the number of branch thermometric metal wire (4) is Apq；
S2: as ApqWhen the temperature detected at item branch thermometric metal wire (4) is greater than or equal to 350 DEG C, then pth layer branch pipe is confirmed
Spontaneous combustion occurs in gangue massif at the q root bye-pass (2) of road floor, that is, realizes the accurate positionin to fire area；
S3: and then start to melt preceding p layers of supervisor's insulating course in main line (1), each layer is first to melt paraffin layer with hot water
(7), hot water and acetic acid p times then with acetate dissolution cement layer (8), is used alternatingly, until preceding p layers of supervisor insulating course is penetrated through；Pth
Paraffin insulating course (5) in the q root bye-pass (2) of layer bye-pass layer has melted due to the conductive force of copper metal bar (6),
Then all penetrated through from main line (1) entrance to the q root bye-pass (2) of pth layer bye-pass layer；
S4: being finally precisely in the milk to fire area, completes fire-fighting work.
2. a kind of extinguishing method for spontaneous combustion of coal gangue hill according to claim 1, which is characterized in that the step S1
In, pipe network is set in gangue massif middle berth method particularly includes: when coal gangue hill starts accumulation, in accumulation coal gangue hill in advance
Then the main line (1) that a length of 2.5 ~ 5m of pth section is erect in the middle part of position starts to accumulate gangue, when coal gangue hill height with
When pth section main line (1) flushes, pth layer bye-pass layer is connected on the top of pth section main line (1), connects pth layer branch pipe
Then road floor and then connection -1 section main line (1) of pth are accumulated gangue and connection -1 layer of bye-pass layer of pth again, are repeated
The above method, until having set pipe network in gangue massif middle berth.
3. a kind of extinguishing method for spontaneous combustion of coal gangue hill according to claim 2, which is characterized in that it is described supervisor every
Tomography occurs to need to be laid with again after spontaneous combustion perforation in coal gangue hill, and laying method is first to do one than main line (1)
The slightly smaller cement layer of diameter (8), cement layer (8), the conjunction of main line (1) is hung in rope by fixed at least three ropes on it
Right position is set, and paraffin layer (7) are then poured, will be between cement layer (8) and main line (1) using the mobility and adhesiveness of paraffin
Gap is filled up and is fixed, and new supervisor's insulating course is formed.
4. a kind of extinguishing method for spontaneous combustion of coal gangue hill according to claim 1,2 or 3, which is characterized in that described
In step S1, the cement layer (8) is matched by 93% ~ 97% calcium carbonate and 3% ~ 7% silicate.
5. a kind of extinguishing method for spontaneous combustion of coal gangue hill according to claim 4, which is characterized in that the step S1
In, in the step S1, the thickness of the paraffin insulating course (5), cement layer (8) and paraffin layer (7) is 4 ~ 10cm.
6. a kind of extinguishing method for spontaneous combustion of coal gangue hill according to claim 5, which is characterized in that the main line
It (1) is grouting seamless steel pipe, the bye-pass (2) is alternately laid with by floral tube and steel pipe interval 1m.
7. a kind of extinguishing method for spontaneous combustion of coal gangue hill according to claim 6, which is characterized in that the main thermometric
Polytetrafluoroethylene ethylene layer is coated on metal wire (3) and branch thermometric metal wire (4).
8. a kind of extinguishing method for spontaneous combustion of coal gangue hill according to claim 7, which is characterized in that the bye-pass
(2) one layer of ethylene propylene diene rubber is wrapped up in its surface of floral tube in.
9. a kind of extinguishing method for spontaneous combustion of coal gangue hill according to claim 8, which is characterized in that main line (1)
The nozzle of upper end is equipped with end cap.
10. a kind of extinguishing method for spontaneous combustion of coal gangue hill according to claim 9, which is characterized in that in step S1,
The main line (1) is connected with 12 bye-passes (2) in the horizontal direction in vertical range at interval of 3m；All bye-passes (2)
Free end all extend in the massif away from coal gangue hill outer surface 3m；Between the main line (1) and main line (1), it is responsible for
The connection types such as welding, flanged joint are all made of between road (1) and bye-pass (2)；The paraffin insulating course and paraffin layer are adopted
With No. 52 paraffin.
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