CN209102235U - Mine goaf spontaneous fire temp measuring system - Google Patents
Mine goaf spontaneous fire temp measuring system Download PDFInfo
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- CN209102235U CN209102235U CN201822175191.1U CN201822175191U CN209102235U CN 209102235 U CN209102235 U CN 209102235U CN 201822175191 U CN201822175191 U CN 201822175191U CN 209102235 U CN209102235 U CN 209102235U
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Abstract
The utility model provides a kind of mine goaf spontaneous fire temp measuring system, and temp measuring system includes temperature measuring equipment and protective device；The temperature measuring equipment includes the first flame-proof mine temperature-shrink crack, the first cable for measuring temperature group and the first temperature probe group and the second flame-proof mine temperature-shrink crack connected to induction signal, the second cable for measuring temperature group and the second temperature probe group connected to induction signal；The protective device includes two protection channels; the corresponding outside for being set in two beam cable for measuring temperature groups in this two protection channels; and mine goaf spontaneous fire temp measuring method is realized by carrying out arrangement appropriate to the temp measuring system in mine; the utility model outside cable for measuring temperature by being arranged protective device; anti- pounding property, pull resistance and the anti-flammability of cable for measuring temperature are strengthened, and then improves the utilization efficiency of temp measuring system.
Description
Technical field
The utility model belongs to underground coal mine preventing and extinguishing fire technology field, more particularly, to a kind of mine goaf spontaneous fire
Temp measuring system.
Background technique
Coal mine gob spontaneous fire is one of the important disaster for threatening mine safety production, due to its fire location
Hidden, influence factor is numerous, brings extreme difficulties to the work of underground fire extinguishing.Goaf temperature is grasped in order to be more accurate
Distribution situation and its dynamic rule establish real-time monitoring goaf temperature in underground to correctly divide goaf " three bands "
The temp measuring system of degree variation is necessary.But due to conditions down-hole complexity, have to the various aspects of performance of temp measuring system
Strict requirements.Even if cable for measuring temperature is from the case where meet the features such as higher anti-pounding property, pull resistance, anti-flammability, edge
The cable for measuring temperature of the arrangement in mining conveying lane, air return lane and goaf must all use more advanced reasonable protection system, and
The measure of being effectively protected all is not referred in existing technical solution.Goaf sillar fall and tunnel operation can all make electricity
Cable is damaged, in order to guarantee that temp measuring system works normally, it is necessary to take some safeguard measures, protect to cable.Also,
Generally more than hundreds of meters of goaf temperature monitoring distance, distance change is big, and existing technical solution is time-consuming and laborious, the company of being difficult to realize
Continuous monitoring, thermometric effect are poor.
Summary of the invention
In view of this, the utility model is directed to a kind of mine goaf spontaneous fire temp measuring system, by thermometric
Protective device is set outside cable, strengthens anti-pounding property, pull resistance and the anti-flammability of cable for measuring temperature, and then improve temp measuring system
Utilization efficiency.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
A kind of mine goaf spontaneous fire temp measuring system, including temperature measuring equipment and protective device；
The temperature measuring equipment includes the first flame-proof mine temperature-shrink crack, the second flame-proof mine temperature-shrink crack, the
One cable for measuring temperature group, the second cable for measuring temperature group, the first temperature probe group and the second temperature probe group；
First cable for measuring temperature group is identical with the cable for measuring temperature number in the second cable for measuring temperature group, and at least one；
The temperature probe number of first temperature probe group and the second temperature probe group and corresponding first cable for measuring temperature group and
Cable for measuring temperature number in second cable for measuring temperature group is identical；
First flame-proof mine temperature-shrink crack passes through the cable for measuring temperature and first thermometric in the first cable for measuring temperature group
Corresponding temperature probe signal connection in probe group；
Second flame-proof mine temperature-shrink crack passes through the cable for measuring temperature and second thermometric in the second cable for measuring temperature group
Corresponding temperature probe signal connection in probe group；
The protective device includes two protection channels, and the first cable for measuring temperature group is a branch of, the second thermometric electricity
Cable group is a branch of, the corresponding outside for being set in two beam cable for measuring temperature groups in this two protection channels.
Further, the protection channel is formed by connecting by plurality of sections of steel pipes by steel pipe adapter or is passed through by more piece channel steel
It staggeredly covers up and down.
Further, the first temperature probe group includes the first temperature probe and the second temperature probe, the first thermometric electricity
Cable group includes the first cable for measuring temperature and the second cable for measuring temperature, and first temperature probe and the second temperature probe are positioned close to mine
In the goaf at well air inlet end, the second temperature probe group includes third temperature probe and the 4th temperature probe, and second
Cable for measuring temperature group includes third cable for measuring temperature and the 4th cable for measuring temperature, and the third temperature probe and the setting of the 4th temperature probe exist
In the goaf at mine return air lane end.
Further, the protective device further includes the first high-pressure oil pipe group, the second high-pressure oil pipe group, the first multiple-pass joint
With the second multiple-pass joint；
High-pressure oil pipe in the first high-pressure oil pipe group is identical as the cable for measuring temperature number in the first cable for measuring temperature group, and
Corresponding to be set in the outside that cable for measuring temperature is corresponded in the first cable for measuring temperature group, which passes through the first multiple-pass joint
It is connect with the end in the protection channel being set on the outside of the first cable for measuring temperature group；
High-pressure oil pipe in the second high-pressure oil pipe group is identical as the cable for measuring temperature number in the second cable for measuring temperature group, and
The corresponding outside for being set in corresponding cable for measuring temperature in the second cable for measuring temperature group, the second cable for measuring temperature group are connect by the second multi-pass
Head is connect with the protection channel end being set on the outside of the second cable for measuring temperature group.
Further, the first high-pressure oil pipe group includes the first high-pressure oil pipe and the second high-pressure oil pipe, the second high pressure oil
Pipe group includes third high-pressure oil pipe and the 4th high-pressure oil pipe；
First multiple-pass joint is the first three-way connection, and the second multiple-pass joint is the second three-way connection；
First high-pressure oil pipe and the second high-pressure oil pipe are respectively sleeved at the first cable for measuring temperature and the second cable for measuring temperature
Outside, and first high-pressure oil pipe and the second high-pressure oil pipe by the first three-way connection and are set in the first cable for measuring temperature and second
The end connection in the protection channel on the outside of cable for measuring temperature；
The third high-pressure oil pipe and the 4th high-pressure oil pipe are respectively sleeved at third cable for measuring temperature and the 4th cable for measuring temperature
Outside, and the third high-pressure oil pipe and the 4th high-pressure oil pipe by the second three-way connection and are set in third cable for measuring temperature and the 4th
Protection channel end connection on the outside of cable for measuring temperature.
Further, first temperature probe and the second temperature probe are positioned close to mine air inlet end (under i.e.
Corner side) goaf in, the vertical range with mine air inlet end is respectively 10m, 30m, and the third thermometric is visited
Head and the 4th temperature probe are positioned close in the goaf of mine return air lane end (i.e. upper corner side), with mine return air
The vertical range of lane end is respectively 10m, 30m.
Further, first high-pressure oil pipe, the second high-pressure oil pipe, third high-pressure oil pipe and the 4th high-pressure oil pipe is straight
Diameter is 38mm, and the first high-pressure oil pipe, third high-pressure oil pipe length are 10m, and the second high-pressure oil pipe, the 4th high-pressure oil pipe length are
30m。
Further, first temperature probe includes probe, cable, protection shell and wire spring pipe；
The probe is fixed in the protection shell, and the front end of the probe is stretched out by the front end of protection shell, and with
External world's contact；
One end of the wire spring pipe be fixed on it is described protection shell rear end, and be connected in the protection shell；
Described cable one end is connect with the probe signal, and the other end passes through protection shell and wire spring pipe to overhanging
Out.
Further, second temperature probe, third temperature probe and the 4th temperature probe and the first temperature probe knot
Structure is identical.
Further, the probe is platinum resistance thermometer sensor,.
Further, the protection channel is formed by connecting by plurality of sections of steel pipes by steel pipe adapter.
Further, diameter of steel tube described in every section is 50mm, and every section length of steel pipe is 3m.
Further, first temperature probe, the second temperature probe, third temperature probe and the 4th temperature probe bury
It is located at the rear of mine hydraulic support.
Further, by more piece channel steel by staggeredly covering up and down, the joint of the channel steel is logical in the protection channel
It crosses iron wire and adds jail.
Further, the long 1.2m of channel steel, inner width 8cm described in every section.
Further, first temperature probe, the second temperature probe, third temperature probe and the 4th temperature probe bury
It is located in the gap between mine hydraulic support.
A kind of mining mine goaf spontaneous fire temp measuring method based on mine goaf temp measuring system, including
Following steps:
(I) the first flame-proof mine temperature-shrink crack and second mining is respectively set in the starting point of air inlet and air return lane
Flame-proof type temperature-shrink crack；
(II) by the first cable for measuring temperature group protective device be arranged protection under be laid in air inlet and goaf so that
First temperature probe group of the first cable for measuring temperature group end is embedded in the goaf close to mine air inlet end, while by the
Two cable for measuring temperature groups protective device be arranged protection under be laid in air return lane and goaf so that the second cable for measuring temperature group end
The second temperature probe group at end is embedded in the goaf close to mine return air lane end, and by the starting of the first cable for measuring temperature group
End is connect with the first flame-proof mine temperature-shrink crack signal, by the starting point of the second cable for measuring temperature group and the second flame-proof mine
The connection of temperature-shrink crack signal；
(III) staff reads the first flame-proof mine temperature-shrink crack and the second flame-proof mine temperature-shrink crack number
According to.
Further, the starting point of the air inlet in the step (I) and air return lane can be air inlet and air return lane away from
Position from coal working face 100m or more.
Further, the protective device in the step (II) includes being formed by connecting by plurality of sections of steel pipes by steel pipe adapter
Two articles of protection channels and corresponding to the first high-pressure oil pipe group of the first cable for measuring temperature group and the second cable for measuring temperature group number
Two high-pressure oil pipe groups, and two protection channels are laid in air inlet and air return lane, the first high-pressure oil pipe group is corresponding to be set in the
The outside of cable for measuring temperature in one cable for measuring temperature group, and connect by the first multiple-pass joint with the protection channel at air inlet end, the
The corresponding outside for being set in cable for measuring temperature in the second cable for measuring temperature group of two high-pressure oil pipe groups, and pass through the second multiple-pass joint and return air
The protection channel at lane end connects.
Further, the first cable for measuring temperature group includes the first cable for measuring temperature and the second cable for measuring temperature, the second thermometric electricity
Cable group includes third cable for measuring temperature and the 4th cable for measuring temperature, and the first high-pressure oil pipe group includes the first high-pressure oil pipe and the second high pressure oil
Pipe, the second high-pressure oil pipe group include third high-pressure oil pipe and the 4th high-pressure oil pipe, and the first multiple-pass joint is the first three-way connection, the
Two multiple-pass joints are the second three-way connection.
First high-pressure oil pipe and the second high-pressure oil pipe are respectively sleeved at the outside of the first cable for measuring temperature and the second cable for measuring temperature,
And connect by the first three-way connection with the protection channel at air inlet end, third high-pressure oil pipe and the 4th high-pressure oil pipe cover respectively
It is located at the outside of third cable for measuring temperature and the 4th cable for measuring temperature, and passes through the protection channel of the second three-way connection and air return lane end
Connection.
Further, diameter of steel tube described in every section is 50mm, and every section length of steel pipe is 3m.
Further, in the step (II), the first temperature probe and the second temperature probe are positioned close to mine air inlet
In the goaf at lane end (descending corner), the vertical range with mine air inlet end is respectively 10m, 30m；Third thermometric
Probe and the 4th temperature probe are positioned close in the goaf at mine return air lane end (i.e. upper corner), with mine return air lane
The vertical range of end is respectively 10m, 30m.
Further, first high-pressure oil pipe, the second high-pressure oil pipe, third high-pressure oil pipe and the 4th high-pressure oil pipe is straight
Diameter is 38mm, and the first high-pressure oil pipe, third high-pressure oil pipe length are 10m, and the second high-pressure oil pipe, the 4th high-pressure oil pipe length are
30m。
Further, the first temperature probe in the step (II) includes probe, cable, protection shell and wire spring
Pipe；
The probe is fixed in the protection shell, and the front end of the probe is stretched out by the front end of protection shell, and with
External world's contact；
One end of the wire spring pipe be fixed on it is described protection shell rear end, and be connected in the protection shell；
Described cable one end is connect with the probe signal, and the other end passes through protection shell and wire spring pipe to overhanging
Out.
Further, the second temperature probe, third temperature probe and the 4th temperature probe in the step (II) and
One temperature probe structure is identical.
Further, the probe is platinum resistance thermometer sensor,.
Further, the first temperature probe in the step (II), the second temperature probe, third temperature probe and the 4th
Temperature probe is embedded in the rear of mine hydraulic support.
A kind of fully-mechanized mining working mine goaf spontaneous fire temp measuring method based on mine goaf temp measuring system, including
Following steps:
(a) the first temperature probe group and the second temperature probe group are buried between mine hydraulic support；
(b) the first temperature probe group is corresponding by having the first cable for measuring temperature group of certain length surplus capacity and the first mine
It is connected with flame-proof type temperature-shrink crack signal, while the second temperature probe group is corresponding by having the of certain length surplus capacity
Two cable for measuring temperature groups are connect with the second flame-proof mine temperature-shrink crack signal, and the first cable for measuring temperature group and the second cable for measuring temperature
Layings of group partially and the first temperature probe group positioned at its end and the second temperature probe group covered by protective device after again
It is covered by broken coal；
(c) the first flame-proof mine temperature-shrink crack and the setting of the second flame-proof mine temperature-shrink crack is hydraulic in mine
On bracket, while the excess length disk of cable for measuring temperature in the first cable for measuring temperature group and the second cable for measuring temperature group is hung over into well mine liquid
Press the rear end of bracket；
(d) with the propulsion of coal working face, the first cable for measuring temperature group and the second cable for measuring temperature group are released in time abundant
Length, and after promoting mine hydraulic support, by the increase length of the first cable for measuring temperature group and the second cable for measuring temperature group by protecting
It is covered after protection unit covering by broken coal；
(e) staff reads the first flame-proof mine temperature-shrink crack and the second flame-proof mine temperature-shrink crack in real time
On mine goaf temperature data.
Further, the protective device in the step (b) includes being passed through made of staggeredly covering up and down as more piece channel steel
Two protection channels, the joint of the channel steel adds jail by iron wire.
Further, the long 1.2m of channel steel, inner width 8cm described in every section.
Further, the first temperature probe in the step (a) includes probe, cable, protection shell and wire spring
Pipe；
The probe is fixed in the protection shell, and the front end of the probe is stretched out by the front end of protection shell, and with
External world's contact；
One end of the wire spring pipe be fixed on it is described protection shell rear end, and be connected in the protection shell；
Described cable one end is connect with the probe signal, and the other end passes through protection shell and wire spring pipe to overhanging
Out.
Further, the second temperature probe in the step (a), third temperature probe and the 4th temperature probe and first
Temperature probe structure is identical.
Further, the probe is platinum resistance thermometer sensor,.
Compared with the existing technology, spontaneous fire temp measuring system in mine goaf described in the utility model has following excellent
Gesture:
(1) spontaneous fire temp measuring system in mine goaf of the present invention, by the way that protection dress is arranged outside cable for measuring temperature
It sets, strengthens anti-pounding property, pull resistance and the anti-flammability of cable for measuring temperature, and then improve the utilization efficiency of temp measuring system.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.?
In attached drawing:
Fig. 1 is mine goaf spontaneous fire temp measuring system schematic illustration described in the utility model embodiment；
Fig. 2 is thermometric in mining mine goaf spontaneous fire temp measuring method described in the utility model embodiment
The arrangement schematic diagram of system；
Fig. 3 is protective device structural schematic diagram described in the utility model embodiment；
Fig. 4 is thermometric in fully-mechanized mining working mine goaf spontaneous fire temp measuring method described in the utility model embodiment
System arrangement schematic diagram；
Fig. 5 is mining in fully-mechanized mining working mine goaf spontaneous fire temp measuring method described in the utility model embodiment
The scheme of installation of flame-proof type digital display instrument and cable for measuring temperature between hydraulic support；
Fig. 6 is to protect in fully-mechanized mining working mine goaf spontaneous fire temp measuring method described in the utility model embodiment
The channel steel of device staggeredly covers schematic diagram；
Fig. 7 is temperature probe structural schematic diagram described in the utility model embodiment.
Description of symbols:
1- the first flame-proof mine temperature-shrink crack；The first cable for measuring temperature of 2-；The second cable for measuring temperature of 3-；The first thermometric of 4-
Probe；The second temperature probe of 5-；6- the second flame-proof mine temperature-shrink crack；7- third cable for measuring temperature；The 4th cable for measuring temperature of 8-；
9- third temperature probe；The 4th temperature probe of 10-；11- steel pipe；12- steel pipe adapter；The first three-way connection of 13-；14- first
High-pressure oil pipe；The second high-pressure oil pipe of 15-；A- air inlet；B- air return lane；The coal seam C-；D- coal working face；The goaf E-；F- liquid
Press bracket；Corner under G-；H- upper corner.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For limitations of the present invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result,
Feature can explicitly or implicitly include one or more of the features.It is in the description of the present invention, unless another
It is described, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State the concrete meaning of term in the present invention.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
A kind of mine goaf spontaneous fire temp measuring system, including temperature measuring equipment and protective device；
The temperature measuring equipment include the first flame-proof mine temperature-shrink crack 1, the second flame-proof mine temperature-shrink crack 6,
First cable for measuring temperature group, the second cable for measuring temperature group, the first temperature probe group and the second temperature probe group；
First cable for measuring temperature group is identical with the cable for measuring temperature number in the second cable for measuring temperature group, and at least one；
The temperature probe number of first temperature probe group and the second temperature probe group and corresponding first cable for measuring temperature group and
Cable for measuring temperature number in second cable for measuring temperature group is identical；
First flame-proof mine temperature-shrink crack 1 passes through the cable for measuring temperature and first thermometric in the first cable for measuring temperature group
Corresponding temperature probe signal connection in probe group；
Second flame-proof mine temperature-shrink crack 6 passes through the cable for measuring temperature and second thermometric in the second cable for measuring temperature group
Corresponding temperature probe signal connection in probe group；
The protective device includes two protection channels, and the first cable for measuring temperature group is a branch of, the second thermometric electricity
Cable group is a branch of, the corresponding outside for being set in two beam cable for measuring temperature groups in this two protection channels.
Further, the first temperature probe group includes the first temperature probe 4 and the second temperature probe 5, the first thermometric
Cable group includes the first cable for measuring temperature 2 and the second cable for measuring temperature 3, and first temperature probe 4 and the second temperature probe 5 are arranged
In the goaf close to mine air inlet end, the second temperature probe group includes third temperature probe 9 and the 4th thermometric
Probe 10, the second cable for measuring temperature group includes third cable for measuring temperature 7 and the 4th cable for measuring temperature 8, the third temperature probe 9 and the 4th
Temperature probe 10 is positioned close in the goaf at mine return air lane end.
Further, the protective device further includes the first high-pressure oil pipe group, the second high-pressure oil pipe group, the first multiple-pass joint
With the second multiple-pass joint；
High-pressure oil pipe in the first high-pressure oil pipe group is identical as the cable for measuring temperature number in the first cable for measuring temperature group, and
Corresponding to be set in the outside that cable for measuring temperature is corresponded in the first cable for measuring temperature group, which passes through the first multiple-pass joint
It is connect with the end in the protection channel being set on the outside of the first cable for measuring temperature group；
High-pressure oil pipe in the second high-pressure oil pipe group is identical as the cable for measuring temperature number in the second cable for measuring temperature group, and
The corresponding outside for being set in corresponding cable for measuring temperature in the second cable for measuring temperature group, the second cable for measuring temperature group are connect by the second multi-pass
Head is connect with the protection channel end being set on the outside of the second cable for measuring temperature group.
Further, the first high-pressure oil pipe group includes the first high-pressure oil pipe 14 and the second high-pressure oil pipe 15, and second is high
Pressuring oil pipe group includes third high-pressure oil pipe and the 4th high-pressure oil pipe；
First multiple-pass joint is the first three-way connection 13, and the second multiple-pass joint is the second three-way connection.
First high-pressure oil pipe 14 and the second high-pressure oil pipe 15 are respectively sleeved at the first cable for measuring temperature 2 and the second thermometric electricity
The outside of cable 3, and first high-pressure oil pipe 14 and the second high-pressure oil pipe 15 by the first three-way connection 13 and are set in the first survey
Warm cable 2 is connected with the end in the protection channel in 3 outside of the second cable for measuring temperature；
The third high-pressure oil pipe and the 4th high-pressure oil pipe are respectively sleeved at third cable for measuring temperature 7 and the 4th cable for measuring temperature 8
Outside, and the third high-pressure oil pipe and the 4th high-pressure oil pipe by the second three-way connection and be set in third cable for measuring temperature 7 and
The protection channel end connection in 8 outside of the 4th cable for measuring temperature.
Further, first temperature probe 4 and the second temperature probe 5 are positioned close to the end mine air inlet A (i.e.
Lower corner G) goaf E in, the vertical range with the end mine air inlet A is respectively 10m, 30m, and the third thermometric is visited
First 9 and the 4th temperature probe 10 be positioned close in the goaf E at the mine return air lane end B (i.e. upper corner H), with mine return
The vertical range of the end air way B is respectively 10m, 30m.
Further, first high-pressure oil pipe 14, the second high-pressure oil pipe 15, third high-pressure oil pipe and the 4th high-pressure oil pipe
Diameter be 38mm, the first high-pressure oil pipe 14, third high-pressure oil pipe length be 10m, the second high-pressure oil pipe 15, the 4th high-pressure oil pipe
Length is 30m.
Further, first temperature probe 4 includes probe, cable, protection shell and wire spring pipe；
The probe is fixed in the protection shell, and the front end of the probe is stretched out by the front end of protection shell, and with
External world's contact；
One end of the wire spring pipe be fixed on it is described protection shell rear end, and be connected in the protection shell；
Described cable one end is connect with the probe signal, and the other end passes through protection shell and wire spring pipe to overhanging
Out.
Further, second temperature probe 5, third temperature probe 9 and the 4th temperature probe 10 and the first thermometric are visited
First 4 structure is identical.
Further, the probe is platinum resistance thermometer sensor,.
Further, the protection channel is formed by connecting by plurality of sections of steel pipes 11 by steel pipe adapter 12.
Further, 11 diameter of steel pipe described in every section is 50mm, and every 11 length of section steel pipe is 3m.
Further, first temperature probe 4, the second temperature probe 5, third temperature probe 9 and the 4th temperature probe
10 are embedded in the rear of mine hydraulic support F.
Further, by more piece channel steel by staggeredly covering up and down, the joint of the channel steel is logical in the protection channel
It crosses iron wire and adds jail.
Further, the long 1.2m of channel steel, inner width 8cm described in every section.
Further, first temperature probe 4, the second temperature probe 5, third temperature probe 9 and the 4th temperature probe
10 are embedded in the gap between mine hydraulic support F.
Mine goaf temp measuring system described in the utility model by temperature probe pre-buried in mine, and passes through
Steel pipe and high-pressure oil pipe or channel steel protect cable for measuring temperature, realize temperature probe and detect nature in mine goaf automatically
Temperature when ignition, and temperature signal is transmitted on flame-proof mine temperature-shrink crack by cable for measuring temperature, facilitate work people
Member checks, and covers cable for measuring temperature by steel pipe and high-pressure oil pipe or channel steel, increase anti-the pounding property of cable for measuring temperature, pull resistance and
Anti-flammability, and then improve the utilization efficiency of temp measuring system.
A kind of mining mine goaf spontaneous fire temp measuring method based on mine goaf temp measuring system, including
Following steps:
(I) the first flame-proof mine temperature-shrink crack 1 and second is respectively set in the starting point of air inlet A and air return lane B
Flame-proof mine temperature-shrink crack 6；
(II) by the first cable for measuring temperature group protective device be arranged protection under be laid in air inlet A and goaf E, make
The the first temperature probe group for obtaining the first cable for measuring temperature group end is embedded in the goaf E at the end mine air inlet A, simultaneously
By the second cable for measuring temperature group protective device be arranged protection under be laid in air return lane B and goaf E so that the second thermometric is electric
Second temperature probe group of cable group end is embedded in the goaf E close to the mine return air lane end B, and by the first cable for measuring temperature
The starting point of group is connect with 1 signal of the first flame-proof mine temperature-shrink crack, by the starting point and second of the second cable for measuring temperature group
The connection of 6 signal of flame-proof mine temperature-shrink crack；
(III) staff reads the first flame-proof mine temperature-shrink crack 1 and the second flame-proof mine temperature-shrink crack 6
Data.
Further, the starting point of the air inlet A in the step (I) and air return lane B can be air inlet A and air return lane
Position of the B apart from coal working face 100m or more.
Further, the protective device in the step (II) includes being formed by connecting by plurality of sections of steel pipes by steel pipe adapter
Two articles of protection channels and corresponding to the first high-pressure oil pipe group of the first cable for measuring temperature group and the second cable for measuring temperature group number
Two high-pressure oil pipe groups, and two protection channels are laid in air inlet A and air return lane B and extend to inside goaf, first is high
The corresponding outside for being set in cable for measuring temperature in the first cable for measuring temperature group of pressuring oil pipe group, and pass through the first multiple-pass joint and air inlet A
The protection channel at end connects, the corresponding outside for being set in cable for measuring temperature in the second cable for measuring temperature group of the second high-pressure oil pipe group, and
It is connect by the second multiple-pass joint with the protection channel at the end air return lane B.
Further, the first temperature probe group in the step (II) includes that the first temperature probe 4 and the second thermometric are visited
First 5, the first cable for measuring temperature group includes the first cable for measuring temperature 2 and the second cable for measuring temperature 3, and the second temperature probe group includes third
Temperature probe 9 and the 4th temperature probe 10, the second cable for measuring temperature group include third cable for measuring temperature 7 and the 4th cable for measuring temperature 8；
The first high-pressure oil pipe group includes the first high-pressure oil pipe 14 and the second high-pressure oil pipe 15, the second high-pressure oil pipe group packet
Include third high-pressure oil pipe and the 4th high-pressure oil pipe；
First multiple-pass joint is the first three-way connection 13, and the second multiple-pass joint is the second three-way connection.
First high-pressure oil pipe 14 and the second high-pressure oil pipe 15 are respectively sleeved at the first cable for measuring temperature 2 and the second thermometric electricity
The outside of cable 3, and first high-pressure oil pipe 14 and the second high-pressure oil pipe 15 by the first three-way connection 13 and are set in the first survey
Warm cable 2 is connected with the end in the protection channel in 3 outside of the second cable for measuring temperature；
The third high-pressure oil pipe and the 4th high-pressure oil pipe are respectively sleeved at third cable for measuring temperature 7 and the 4th cable for measuring temperature 8
Outside, and the third high-pressure oil pipe and the 4th high-pressure oil pipe by the second three-way connection and be set in third cable for measuring temperature 7 and
The protection channel end connection in 8 outside of the 4th cable for measuring temperature.
Further, 11 diameter of steel pipe described in every section is 50mm, and every 11 length of section steel pipe is 3m, for adapting to underground lane
The topography variations such as the road gradient, are protected convenient for going through cable for measuring temperature.
Further, in the step (II), the first temperature probe 4 and the second temperature probe 5 be positioned close to mine into
In the goaf E at the end air way A (descending the side corner G), the vertical range with the end mine air inlet A be respectively 10m,
30m；Third temperature probe 9 and the 4th temperature probe 10 are positioned close to the mine return air lane end B (i.e. upper corner side H)
In the E of goaf, the vertical range with the mine return air lane end B is respectively 10m, 30m.
Further, first high-pressure oil pipe 14, the second high-pressure oil pipe 15, third high-pressure oil pipe and the 4th high-pressure oil pipe
Diameter be 38mm, the first high-pressure oil pipe 14, third high-pressure oil pipe length be 10m, the second high-pressure oil pipe 15, the 4th high-pressure oil pipe
Length is 30m, and high-pressure oil pipe has relatively better flexibility, is equally adapted to the variation of underground complicated landform, especially adopts
Dead zone condition is extremely complex, be using steel pipe it is unworkable, only flexibility is good, and the high-pressure oil pipe that anti-pounding property, crushing resistance are high
Equal materials can just easily facilitate the gap dragged between rear scraper plate and goaf, achieve the purpose that protect cable for measuring temperature.
Further, the first temperature probe 4 in the step (II) includes probe, cable, protection shell and steel wire bullet
Reed pipe；
The probe is fixed in the protection shell, and the front end of the probe is stretched out by the front end of protection shell, and with
External world's contact；
One end of the wire spring pipe be fixed on it is described protection shell rear end, and be connected in the protection shell；
Described cable one end is connect with the probe signal, and the other end passes through protection shell and wire spring pipe to overhanging
Out.
The temperature probe has the characteristics that very high anti-pounding property, waterproofness, anti-flammability.
Further, the second temperature probe 5, third temperature probe 9 and the 4th temperature probe 10 in the step (II)
It is identical as 4 structure of the first temperature probe.
Further, the probe is platinum resistance thermometer sensor,.
Further, the first temperature probe 4 in the step (II), the second temperature probe 5,9 and of third temperature probe
4th temperature probe 10 is embedded in the rear of mine hydraulic support F.
Since goaf interior condition is extremely complex, normal condition is to be difficult artificially to enter to arrange excessive thermometric observation point
, therefore we layout observation it is necessary to choose some most easy points that natural combustion of remaining coal occur.It is simulated according to laboratory values
As a result, the hole of the position inbreak coal petrography of coal working face upper corner H, lower corner G is big, inleakage is big, something lost coal herein most holds
Oxidation and spontaneous combustion easily occurs, the variation of oxygen concentration and temperature is big.Therefore one survey of each arrangement at away from mine air inlet 10m and 30m
Temperature probe, one temperature probe of each arrangement is effective and feasible at away from mine return air lane 10m and 30m.
It should be noted that high-pressure oil pipe cannot be too long, preferably every section is no more than 10 meters, for 10 meters, the first high pressure
Oil pipe and third high-pressure oil pipe include the high-pressure oil pipe of 10 meters of a section, and the second high-pressure oil pipe and the 4th high-pressure oil pipe include
The sequentially connected 10 meters of high-pressure oil pipes of three sections, are pierced into pipe to avoid cable for measuring temperature is bad.
Mining mine goaf spontaneous fire temp measuring method described in the utility model, by coal working face
Hydraulic support after pre-buried temperature probe mode, suitable for the coal working face in mining coal seam, due to Sub-Level Caving coal
The presence of scraper plate after the coal working face of layer, allowing between goaf and hydraulic support has enough spaces temperature probe
It is buried in place from putting between the two, this temp measuring method disposably protects all cable for measuring temperature, day
After work in only need to record thermometer data daily, be easily managed, save a large amount of manpower and material resources, improve coal mining effect
Rate also effectively prevents the generation of goaf danger.
A kind of fully-mechanized mining working mine goaf spontaneous fire temp measuring method based on mine goaf temp measuring system, including
Following steps:
(a) the first temperature probe group and the second temperature probe group are buried between mine hydraulic support F；
(b) the first temperature probe group is corresponding by having the first cable for measuring temperature group of certain length surplus capacity and the first mine
It is connected with 1 signal of flame-proof type temperature-shrink crack, while the second temperature probe group is corresponding by having certain length surplus capacity
Second cable for measuring temperature group is connect with 6 signal of the second flame-proof mine temperature-shrink crack, and the first cable for measuring temperature group and the second thermometric
The laying part of cable group and the first temperature probe group positioned at its end and the second temperature probe group are covered by protective device
It is covered again by broken coal afterwards；
(c) the first flame-proof mine temperature-shrink crack 1 and the second flame-proof mine temperature-shrink crack 6 are arranged in mine
On hydraulic support F, while the excess length disk of cable for measuring temperature in the first cable for measuring temperature group and the second cable for measuring temperature group being hung over well
The rear end of mine hydraulic support F；
(d) with the propulsion of coal working face, the first cable for measuring temperature group and the second cable for measuring temperature group are released in time abundant
Length, and after promoting mine hydraulic support F, by the increase length of the first cable for measuring temperature group and the second cable for measuring temperature group by protecting
It is covered after protection unit covering by broken coal；
(e) staff reads the first flame-proof mine temperature-shrink crack 1 and the second flame-proof mine temperature digital-display in real time
Mine goaf temperature data on instrument 6.
It is in order to enable cable for measuring temperature is in processes such as unwrapping wire, fair line, shifting framves for cable for measuring temperature to be released to abundant length
In will be at relaxed state as far as possible, in order to avoid be pulled off.Also, it daily will be in mobile liquid to the unwrapping wire of cable for measuring temperature
It presses and is carried out before bracket, each unwrapping wire should not be too many, and cable is avoided to accumulate.Finally, taking slot to cable for measuring temperature line and beam tube
Steel protection, then covers channel steel with broken coal.As shown in fig. 6, two channel steels of cable for measuring temperature and beam tube long 1.2m, inner width 8cm
Staggeredly covering is protected up and down, and joint adds jail to prevent from being broken with iron wire.In this way with the Forward of hydraulic support, cable for measuring temperature
It is constantly embedded in, temperature probe is also increasingly remoter away from working face in goaf, to obtain away from the mined out of working face different depth
Area's temperature variation data.
Further, the first temperature probe group in the step (a) and step (b) includes the first temperature probe 4 and the
Two temperature probes 5, the first cable for measuring temperature group include the first cable for measuring temperature 2 and the second cable for measuring temperature 3, the second temperature probe group
Including third temperature probe 9 and the 4th temperature probe 10, the second cable for measuring temperature group includes third cable for measuring temperature 7 and the 4th thermometric electricity
Cable 8.
Further, the protective device in the step (b) includes being passed through made of staggeredly covering up and down as more piece channel steel
Two protection channels, the joint of the channel steel adds jail by iron wire.
Further, the long 1.2m of channel steel, inner width 8cm described in every section.
Further, the first temperature probe 4 in the step (a) includes probe, cable, protection shell and wire spring
Pipe；
The probe is fixed in the protection shell, and the front end of the probe is stretched out by the front end of protection shell, and with
External world's contact；
One end of the wire spring pipe be fixed on it is described protection shell rear end, and be connected in the protection shell；
Described cable one end is connect with the probe signal, and the other end passes through protection shell and wire spring pipe to overhanging
Out.
Further, the second temperature probe 5 in the step (a), third temperature probe 9 and the 4th temperature probe 10 with
First temperature probe, 4 structure is identical.
Further, the probe is platinum resistance thermometer sensor,.
The arrangement of this temperature probe is not suitable for protecting using steel pipe and high-pressure oil pipe, thus generally using channel steel into
Row protection.Also, since the rock being caving after general fully-mechanized mining working surface hydraulic support by goaf fills up, in this case,
Temperature probe cannot be put in behind hydraulic support, so this thermometric cloth for protecting cable for measuring temperature in coal mining can only be used
Line scheme.
The temp measuring system of the utility model is laid in mine by the protection of protective device, improves the anti-of cable for measuring temperature
Performance is pounded, and the temp measuring system protects cable for measuring temperature using steel pipe and high-pressure oil pipe in mining mine, general comprehensive
In mining face mine, cable for measuring temperature is protected using the channel steel of staggeredly covering, the exploitation feature that mine has both been utilized is suitable
Protective device is preferably adjusted, manpower and material resources are saved, and realizes the real time monitoring to mine safety, improves coal mining efficiency.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (5)
1. a kind of mine goaf spontaneous fire temp measuring system, it is characterised in that: including temperature measuring equipment and protective device；
The temperature measuring equipment includes the first flame-proof mine temperature-shrink crack, the second flame-proof mine temperature-shrink crack, the first survey
Warm cable group, the second cable for measuring temperature group, the first temperature probe group and the second temperature probe group；
First cable for measuring temperature group is identical with the cable for measuring temperature number in the second cable for measuring temperature group, and at least one；
The temperature probe number of first temperature probe group and the second temperature probe group and corresponding first cable for measuring temperature group and second
Cable for measuring temperature number in cable for measuring temperature group is identical；
First flame-proof mine temperature-shrink crack passes through the cable for measuring temperature and first temperature probe in the first cable for measuring temperature group
Corresponding temperature probe signal connection in group；
Second flame-proof mine temperature-shrink crack passes through the cable for measuring temperature and second temperature probe in the second cable for measuring temperature group
Corresponding temperature probe signal connection in group；
The protective device includes two protection channels, and the first cable for measuring temperature group is a branch of, the second cable for measuring temperature group
To be a branch of, the corresponding outside for being set in two beam cable for measuring temperature groups in this two protection channels.
2. spontaneous fire temp measuring system in mine goaf according to claim 1, it is characterised in that: the protection channel by
Plurality of sections of steel pipes is formed by connecting or by more piece channel steel by staggeredly covering up and down by steel pipe adapter.
3. spontaneous fire temp measuring system in mine goaf according to claim 1, it is characterised in that first thermometric is visited
Head group includes the first temperature probe and the second temperature probe, and the first cable for measuring temperature group includes the first cable for measuring temperature and the second thermometric electricity
Cable, first temperature probe and the second temperature probe are positioned close in the goaf at mine air inlet end, and described second
Temperature probe group includes third temperature probe and the 4th temperature probe, and the second cable for measuring temperature group includes third cable for measuring temperature and the 4th
Cable for measuring temperature, the third temperature probe and the 4th temperature probe are positioned close in the goaf at mine return air lane end.
4. spontaneous fire temp measuring system in mine goaf according to claim 1, it is characterised in that: the protective device is also
Including the first high-pressure oil pipe group, the second high-pressure oil pipe group, the first multiple-pass joint and the second multiple-pass joint；
High-pressure oil pipe in the first high-pressure oil pipe group is identical as the cable for measuring temperature number in the first cable for measuring temperature group, and corresponding
It is set in the outside that cable for measuring temperature is corresponded in the first cable for measuring temperature group, which passes through the first multiple-pass joint and set
It is located at the end connection in the protection channel on the outside of the first cable for measuring temperature group；
High-pressure oil pipe in the second high-pressure oil pipe group is identical as the cable for measuring temperature number in the second cable for measuring temperature group, and corresponding
Be set in the outside of corresponding cable for measuring temperature in the second cable for measuring temperature group, the second cable for measuring temperature group by the second multiple-pass joint with
The protection channel end connection being set on the outside of the second cable for measuring temperature group.
5. spontaneous fire temp measuring system in mine goaf according to claim 1, it is characterised in that: first thermometric is visited
Head includes probe, cable, protection shell and wire spring pipe；
The probe is fixed in the protection shell, and the front end of the probe by protection shell front end stretch out, and with the external world
Contact；
One end of the wire spring pipe be fixed on it is described protection shell rear end, and be connected in the protection shell；
Described cable one end is connect with the probe signal, and the other end passes through protection shell and wire spring pipe is protruding；
Second temperature probe, third temperature probe and the 4th temperature probe are identical as the first temperature probe structure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822175191.1U CN209102235U (en) | 2018-12-24 | 2018-12-24 | Mine goaf spontaneous fire temp measuring system |
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| Application Number | Priority Date | Filing Date | Title |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109443584A (en) * | 2018-12-24 | 2019-03-08 | 中国矿业大学(北京) | Mine goaf spontaneous fire temp measuring system and temp measuring method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109443584A (en) * | 2018-12-24 | 2019-03-08 | 中国矿业大学(北京) | Mine goaf spontaneous fire temp measuring system and temp measuring method |
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