CN105973935A - Test device of influence of space and multi-component gas on coal spontaneous combustion tendency - Google Patents
Test device of influence of space and multi-component gas on coal spontaneous combustion tendency Download PDFInfo
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- CN105973935A CN105973935A CN201610270006.XA CN201610270006A CN105973935A CN 105973935 A CN105973935 A CN 105973935A CN 201610270006 A CN201610270006 A CN 201610270006A CN 105973935 A CN105973935 A CN 105973935A
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- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
- G01N25/22—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures
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Abstract
The invention discloses a test device of influence of space and multi-component gas on coal spontaneous combustion tendency. The device includes a reactor placed in oil bath; the reactor is provided with an adjusting device for adjusting the height of an inner cavity, the end face at one side of the reactor is provided with at least two gas introducing ports, and the end face at the other side is provided with a gas outlet connected with a gas concentration analysis system; the test device also comprises a data acquisition system, an inner cavity temperature sensor connected with the data acquisition system, and an oil bath temperature sensor connected with the data acquisition system. The coal mine goaf height can be more truly simulated, and the influence of spatial characteristics on the coal spontaneous combustion ignition tendency is studied; the multi-component gas can be introduced controllably according to test requirements, and the influence of the multi-component gas on the coal spontaneous combustion tendency is studied; and ventilation conditions in the reactor can be controlled, and the influence of the goaf ventilation conditions on the coal spontaneous combustion tendency is studied.
Description
Technical field
The present invention relates to testing equipment, particularly to a kind of coal spontaneous combustion of measuring by such environmental effects
Testing equipment.
Background technology
Process of coal mining inevitably stay part lose coal in goaf.Residual coal in goaf and air
Low-temperature oxidation can be occurred to react, make coal generation spontaneous heating phenomenon.Coal spontaneous combustion can cause down-hole breeding fire；Connect
Tactile after damp can also cause even more serious gas explosion accident.
Existing coal ignitability's determinator and goaf simulator seldom consider goaf ventilation condition pair
Low-temperature oxidation of coal phenomenon and the impact of spontaneous heating；The spatial character (ceiling height) in goaf is the most all by trying
Test and be determined in advance with reactor, it is impossible to freely regulate.In the environment of goaf, the concentration of each component gas is also simultaneously
The spontaneous combustion tendency of coal there is is considerable influence, but existing equipment often only takes into account one-component gas and burning
Produce the impact of gas, and do not account for the impact of environmental gas component.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of space and coal ignitability is affected by multicomponent gas
Assay device, with solve existing testing equipment can not study spatial character and multicomponent gas to coal spontaneous be inclined to
Property impact technical problem.
The assay device that coal ignitability is affected by space of the present invention and multicomponent gas, including being placed in oil bath
In reactor, described reactor is provided with regulation reactor cavity heights adjusting means, described regulation fill
Put in including being arranged at reactor and diaphragm plate that edge coordinates with reactor wall slipper seal and driving diaphragm plate
The driver moved up and down；
It is provided with at least two gas on one side end face of described reactor and is passed through mouth, the opposite side of described reactor
It is provided with on end face and analyzes, with gas concentration, the gas outlet that system is connected；
Described assay device also includes that data collecting system is connected to detect in reactor with data collecting system
The inner chamber temperature sensor of cavity temperature and be connected with data collecting system to detect reactor cavity wall temperature
Oil bath temperature sensor.
Further, the assay device that coal ignitability is affected by described space and multicomponent gas, also include setting
Put and be passed through the blower fan on side end face at gas reactor.
Beneficial effects of the present invention:
1, the assay device that coal ignitability is affected by space of the present invention and multicomponent gas, it can be by driving
Dynamic device and the cavity heights of diaphragm plate regulation reactor, it is thus possible to simulate the height of coal mine gob more really,
Spatial character impact tendentious for spontaneous combustion of coal can be studied.
2, the assay device that coal ignitability is affected by space of the present invention and multicomponent gas, it is by arranging
Plural gas is passed through mouth, and gas is passed through the particular number of mouth can be needed to select according to test so that can
The gas being passed through various ingredients with controlling；And it is passed through the concentration of gas, flux, flow velocity, is passed through elder generation
Rear order, and temperature can be controlled by；In making it possible to study reactor, multicomponent environmental gas is for coal
The impact of charcoal spontaneous combustion tendency.
3, the assay device that coal ignitability is affected by space of the present invention and multicomponent gas, owing to being provided with
Blower fan, therefore can control the ventilation state in reactor, and then can study goaf ventilation situation to coal spontaneous combustion
Tendentious impact.
Accompanying drawing explanation
Fig. 1 is space and the multicomponent gas structure on the assay device that coal ignitability affects in embodiment
Schematic diagram.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
As it can be seen, the assay device that coal ignitability is affected by the present embodiment space and multicomponent gas,
Including the reactor 2 being placed in oil bath 1, described reactor is provided with the regulation of regulation reactor cavity heights
Device, in described adjusting means includes being arranged at reactor and the tabula that coordinates with reactor wall slipper seal of edge
The driver 4 that plate 3 and driving diaphragm plate move up and down；In being embodied as, driver 4 can be cylinder,
The linear actuator of oil cylinder, electric cylinder or other form；
Being provided with three gases on one side end face of described reactor and be passed through mouth, concrete first gas that is respectively is passed through
Mouth the 5, second gas is passed through mouth 6 and the 3rd gas is passed through mouth 7；Certain gas is passed through the quantity of mouth can root
Test factually need to carry out specifically chosen, but its at least two；It is provided with on the opposite side end face of described reactor
The gas outlet 9 that system 8 is connected is analyzed with gas concentration；
Described assay device also includes that data collecting system 10 is connected to detect reaction with data collecting system
The inner chamber temperature sensor 11 of cavity temperature and be connected to detect reactor cavity with data collecting system in device
The oil bath temperature sensor 12 of wall temperature.
The assay device that coal ignitability is affected by the present embodiment space and multicomponent gas, it can be by driving
Dynamic device and the cavity heights of diaphragm plate regulation reactor, it is thus possible to simulate the height of coal mine gob more really,
Spatial character impact tendentious for spontaneous combustion of coal can be studied.
And the assay device that coal ignitability is affected by the present embodiment space and multicomponent gas, it passes through
Arranging plural gas and be passed through mouth, gas is passed through the particular number of mouth can be needed to select according to test, can
The gas being passed through various ingredients with controlling；And it is passed through the concentration of gas, flux, flow velocity, is passed through elder generation
Rear order (can either synchronously or asynchronously be passed through), and temperature can be controlled by；Make it possible to study in reactor many
Component environmental gas is for the impact of coal spontaneous combustion.
Test coal ignitability affected as the improvement to the present embodiment, this space and multicomponent gas
Device, also includes being arranged on the blower fan 13 that gas reactor is passed through on side end face.Arrange blower fan can control
Ventilation state in reactor, and then make this assay device can study goaf ventilation situation to coal ignitability
Impact.
This assay device of the present embodiment carries out the test side that coal ignitability is affected by space and multicomponent gas
Method, comprises the following steps:
1) diaphragm plate 3 is driven to move the cavity heights of regulation reactor 2 by driver 4；
2) in reactor, coal piling sample 14 is put into；
3) it is passed through mouth by the gas on reactor and is passed through the gas of specified ingredients, flux and concentration；
4) temperature of the outer oil bath 1 of regulation reactor, makes oil bath temperature be consistently equal to coal sample spontaneous heating temperature；
5) blower fan 13 is opened；
6) inner chamber temperature everywhere is gathered in reactor by inner chamber temperature sensor 11 and oil bath temperature sensor 12
Degree and cavity wall temperature, and the relation of the temperature and time gathered by data collecting system 10 record；
7) concentration of each gas component in system 8 records reactor is analyzed by gas concentration；
8) record involuntary ignition total time；
9) by the temperature/time history analysis temperature heating gradient after 70 DEG C of data collecting system record
DT/dt, is designated as R70, R70Unit be DEG C/h；T in dT/dt is temperature, and t is the time；Thereafter through
R70Span determine the spontaneous combustion tendency degree of coal sample: R70< 0.5 is low spontaneous combustion tendency, 0.5 < R70<0.8
It is inclined to for medium spontaneous combustion, R70> 0.8 be high spontaneous combustion tendency；
10) gas component is found by the data of correction data acquisition system and gas concentration analysis system record
Concentration and the relation of coal sample spontaneous combustion tendency.
Finally illustrate, above example only in order to technical scheme to be described and unrestricted, although
With reference to preferred embodiment, the present invention is described in detail, it will be understood by those within the art that,
Technical scheme can be modified or equivalent, without deviating from technical solution of the present invention
Objective and scope, it all should be contained in the middle of scope of the presently claimed invention.
Claims (2)
1. the assay device that coal ignitability is affected by a space and multicomponent gas, it is characterised in that:
Including the reactor being placed in oil bath, described reactor is provided with the regulation dress of regulation reactor cavity heights
Put, in described adjusting means includes being arranged at reactor and the diaphragm plate that coordinates with reactor wall slipper seal of edge
With the driver driving diaphragm plate to move up and down；
It is provided with at least two gas on one side end face of described reactor and is passed through mouth, the opposite side of described reactor
It is provided with on end face and analyzes, with gas concentration, the gas outlet that system is connected；
Described assay device also includes that data collecting system is connected to detect in reactor with data collecting system
The inner chamber temperature sensor of cavity temperature and be connected with data collecting system to detect reactor cavity wall temperature
Oil bath temperature sensor.
The test dress that coal ignitability is affected by space the most according to claim 1 and multicomponent gas
Put, it is characterised in that: also include being arranged on the blower fan that gas reactor is passed through on side end face.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610270006.XA CN105973935B (en) | 2016-04-27 | 2016-04-27 | The experimental rig that space and multicomponent gas influence coal ignitability |
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| CN201610270006.XA CN105973935B (en) | 2016-04-27 | 2016-04-27 | The experimental rig that space and multicomponent gas influence coal ignitability |
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| CN105973935B CN105973935B (en) | 2018-08-31 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107189768A (en) * | 2017-04-10 | 2017-09-22 | 北京科技大学 | A kind of spontaneous heating analog material and preparation method for being used to simulate goaf temperature field |
| CN108896611A (en) * | 2018-08-23 | 2018-11-27 | 中原工学院 | Determining coal ignitability device and measuring method |
| CN109655575A (en) * | 2019-01-06 | 2019-04-19 | 山东科技大学 | It is a kind of to simulate spontaneous combustion in goaf and three experimental systems and method with distribution |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101206211A (en) * | 2007-12-18 | 2008-06-25 | 中国矿业大学 | Method for determining coal ignitability |
| CN102353763A (en) * | 2011-09-14 | 2012-02-15 | 北京科技大学 | Small simulation device for testing spontaneous combustion period of coal |
| KR101364000B1 (en) * | 2012-11-14 | 2014-02-17 | 한국에너지기술연구원 | Coal spontaneous combustion measuring apparatus |
| CN204374123U (en) * | 2014-12-11 | 2015-06-03 | 河南工程学院 | A kind of coal spontaneous combustion token test system |
| CN105372397A (en) * | 2015-12-16 | 2016-03-02 | 华北科技学院 | Simulating experiment device of goaf spontaneous ignition |
| CN205103224U (en) * | 2015-10-28 | 2016-03-23 | 中国矿业大学(北京) | Oil bath formula coal low -temperature oxidation test system |
-
2016
- 2016-04-27 CN CN201610270006.XA patent/CN105973935B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101206211A (en) * | 2007-12-18 | 2008-06-25 | 中国矿业大学 | Method for determining coal ignitability |
| CN102353763A (en) * | 2011-09-14 | 2012-02-15 | 北京科技大学 | Small simulation device for testing spontaneous combustion period of coal |
| KR101364000B1 (en) * | 2012-11-14 | 2014-02-17 | 한국에너지기술연구원 | Coal spontaneous combustion measuring apparatus |
| CN204374123U (en) * | 2014-12-11 | 2015-06-03 | 河南工程学院 | A kind of coal spontaneous combustion token test system |
| CN205103224U (en) * | 2015-10-28 | 2016-03-23 | 中国矿业大学(北京) | Oil bath formula coal low -temperature oxidation test system |
| CN105372397A (en) * | 2015-12-16 | 2016-03-02 | 华北科技学院 | Simulating experiment device of goaf spontaneous ignition |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107189768A (en) * | 2017-04-10 | 2017-09-22 | 北京科技大学 | A kind of spontaneous heating analog material and preparation method for being used to simulate goaf temperature field |
| CN108896611A (en) * | 2018-08-23 | 2018-11-27 | 中原工学院 | Determining coal ignitability device and measuring method |
| CN109655575A (en) * | 2019-01-06 | 2019-04-19 | 山东科技大学 | It is a kind of to simulate spontaneous combustion in goaf and three experimental systems and method with distribution |
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| CN105973935B (en) | 2018-08-31 |
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