CN104569027A - Device and method for testing oxygen consumption rate of coal - Google Patents

Device and method for testing oxygen consumption rate of coal Download PDF

Info

Publication number
CN104569027A
CN104569027A CN201410835783.5A CN201410835783A CN104569027A CN 104569027 A CN104569027 A CN 104569027A CN 201410835783 A CN201410835783 A CN 201410835783A CN 104569027 A CN104569027 A CN 104569027A
Authority
CN
China
Prior art keywords
temperature
oxygen
coal
heat conduction
heating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410835783.5A
Other languages
Chinese (zh)
Inventor
杨俊哲
白枫桐
尚少勇
文虎
张辛亥
贺安民
刘文永
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Shenhua Energy Co Ltd
Xian University of Science and Technology
Shenhua Shendong Coal Group Co Ltd
Original Assignee
China Shenhua Energy Co Ltd
Xian University of Science and Technology
Shenhua Shendong Coal Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Shenhua Energy Co Ltd, Xian University of Science and Technology, Shenhua Shendong Coal Group Co Ltd filed Critical China Shenhua Energy Co Ltd
Priority to CN201410835783.5A priority Critical patent/CN104569027A/en
Publication of CN104569027A publication Critical patent/CN104569027A/en
Pending legal-status Critical Current

Links

Landscapes

  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Abstract

The invention discloses a device and a method for testing oxygen consumption rate of coal. The device comprises a temperature programming furnace, a temperature measuring device, an oxygen concentration measuring device and an air supplying device, wherein at least one heat-conducting barrel for accommodating the coal is arranged inside the temperature programming furnace; the heat-conducting barrel is connected with the temperature measuring device, the oxygen concentration measuring device and the air supplying device respectively; an air flow measuring device is further arranged on the air supplying device. The device for testing the oxygen consumption rate of the coal acquires various parameters at a corresponding temperature, and converts the various parameters into the oxygen consumption rate so as to obtain a corresponding relationship between the temperature and the oxygen consumption rate; the various parameters are controllable, so that through calculation of the oxygen consumption rate under the condition of different flows within a unit time, a real numerical value of the oxygen consumption rate under the conditions of the same temperature, different oxygen concentrations and different air leakage intensities can be verified.

Description

Coal consumption oxygen speed testing device and coal consumption oxygen testing method thereof
Technical field
The present invention relates to coal consumption oxygen test correlative technology field, particularly a kind of coal consumption oxygen speed testing device and coal consumption oxygen testing method thereof.
Background technology
Coal spontaneous combustion is very complicated physics, a chemical change process, and be the exothermic process of changeable autoacceleration, this process is coal oxidation process mainly.Wherein, physical change contains the adsorption and desorption of gas, the evaporation and condensation, heat transfer, the intensification of coal body, the loose of structure etc. of moisture; Chemical change includes various active structure and oxygen generation chemisorption and chemical reaction in coal surface molecule, generates various oxy radical and produces multiple gases, simultaneous thermal effect (having heat release and heat absorption).Due to chemical reaction, the macromolecule internal crosslink bond of coal redistributes, thus make the physics of coal, chemical property changes, and affects coal oxidation process further.Coal oxidation process and exothermic character thereof along with temperature, coal mesoporosity rate and surface area of contacting with air etc. different and different.
Keto consumpting speed is the important indicator evaluating coal spontaneous combustion.Various active structure in coal surface molecule and oxygen generation physics, chemisorption and chemical reaction, and release heat, when oxygen supply is abundant and heat build-up condition is better, the heat accumulation of generation gets up to make coal temperature rise, causes coal spontaneous combustion the most at last.Therefore coal keto consumpting speed just reflects the easy degree of coal spontaneous combustion, and the large then unit interval thermal discharge of coal keto consumpting speed is large, easier spontaneous combustion, and research coal sample keto consumpting speed is significant to Period of Coal Seam Spontaneous Combustion prediction.
But, existing oxygen consumption rate test, in main test coal oxidation process, the ability of unit of coal unit interval internal consumption oxygen, what existing method of testing was simple carry out integration the minimizing curve of oxygen concentration calculates, oxygen consumption rate is not associated with flow parameter, cause data out of true, the actual value of knee point can not be obtained.
Summary of the invention
Based on this, be necessary in the rate of coal's consuming oxygen measuring technology for prior art, the coarse technical matters of test data, a kind of coal consumption oxygen speed testing device and coal consumption oxygen testing method thereof are provided.
A kind of coal consumption oxygen speed testing device, comprise: temperature programme stove, temperature measuring equipment, measuring equipment for oxygen concentration ard and air supply device, at least one is provided with for holding the heat conduction cylindrical shell of coal body in described temperature programme stove, described heat conduction cylindrical shell is connected with described temperature measuring equipment, described measuring equipment for oxygen concentration ard and described air supply device respectively, and described air supply device is also provided with air-flow measurement device.
The coal consumption oxygen testing method adopting above-mentioned coal consumption oxygen speed testing device to carry out, comprising:
Step S1, described heat conduction cylindrical shell mid-enter the coal body of predetermined size;
Step S2, controls the heating of described temperature programme stove, and sends into preheated air by described air supply device;
Step S3, the temperature of described heat conduction cylindrical shell is measured as heating-up temperature by described temperature measuring equipment, and under being determined at described heating-up temperature by described measuring equipment for oxygen concentration ard, first oxygen concentration of the first test point in described heat conduction cylindrical shell, and the second oxygen concentration of the second test point in described heat conduction cylindrical shell, determine that the horizontal range of described first test point and described second test point is as heating distance, determines to heat wind supply quantity by described air-flow measurement device;
Step S4, according to described first oxygen concentration under described heating-up temperature, described second oxygen concentration, described heating distance, the porosity of described heating wind supply quantity, described coal body and the air feed area of described heat conduction cylindrical shell, determine the oxygen consumption rate that described heating-up temperature is corresponding;
Step S5, if described heating-up temperature does not reach preset requirement temperature, then perform step S3 ~ step S4, until described heating-up temperature reaches preset requirement temperature, thus obtain multiple heating-up temperature, and the oxygen consumption rate corresponding with different heating temperature is as heating-up temperature and oxygen consumption rate relation.
The present invention, by coal consumption oxygen speed testing device, obtains the various parameters under corresponding temperature, is oxygen consumption rate, thus obtains the corresponding relation of temperature and oxygen consumption rate by various Parameter Switch.Because various parameter is controlled, therefore solve oxygen consumption rate in the unit interval under different flow condition and calculate, under identical temperature conditions can be verified, the oxygen consumption rate actual value under different oxygen concentration and leakage intensity.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of coal consumption oxygen of the present invention speed testing device;
Fig. 2 is the workflow diagram of a kind of coal consumption oxygen testing method adopting above-mentioned coal consumption oxygen speed testing device to carry out of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
Be illustrated in figure 1 the structural representation of a kind of coal consumption oxygen of the present invention speed testing device, comprise: temperature programme stove 1, temperature measuring equipment 2, measuring equipment for oxygen concentration ard 3 and air supply device 4, in described temperature programme stove, 1 is provided with at least one for holding the heat conduction cylindrical shell 5 of coal body, described heat conduction cylindrical shell 5 is connected with described temperature measuring equipment 2, described measuring equipment for oxygen concentration ard 3 and described air supply device 4 respectively, and described air supply device 4 is also provided with air-flow measurement device 6.
Wherein, preferably, temperature measuring equipment 2 is temperature measuring gauge, and measuring equipment for oxygen concentration ard 3 is gas chromatograph, and air-flow measurement device 6 is flowmeter.Wherein, gas componant during fire coal mainly comprises oxygen O 2, carbon monoxide CO, carbon dioxide O 2, methane CH 4, ethane C 2h 6, ethene C 2h 4, acetylene C 2h 2, can oxygen concentration be obtained by gas chromatograph.
Can be obtained the temperature of heat conduction cylindrical shell 5 by temperature measuring equipment 2, by air supply device 4 to heat conduction cylindrical shell 5 air feed, and determine wind supply quantity by air-flow measurement device 6, measuring equipment for oxygen concentration ard 3 then can obtain the oxygen concentration of difference in heat conduction cylindrical shell 5.Calculate the oxygen consumption rate under different temperatures, thus obtain temperature and oxygen consumption rate relation, can be shown by curve mode.
When adding the coal body of different-grain diameter, then can obtain the temperature under different-grain diameter and oxygen consumption rate relation.
In an one embodiment, arrange every device for coal 51 at the top of described heat conduction cylindrical shell 5 or bottom.
The present embodiment is by arranging every device for coal 51 at the top of heat conduction cylindrical shell 5 or bottom, to make ventilation even.
Preferably, described every device for coal 51 be many orders copper mesh.
Preferably, described heat conduction cylindrical shell 5 is copper pipe.
Wherein in an embodiment, described heat conduction cylindrical shell 5 is two, described temperature measuring equipment 2 is connected with two described heat conduction cylindrical shells 5 respectively by two heat-conducting cylinder body examination temperature paths, described measuring equipment for oxygen concentration ard 3 is connected with two described heat conduction cylindrical shells 5 respectively by two test accesss, described air supply device 4 is connected with two described heat conduction cylindrical shells 5 respectively by two air feed paths, and each air feed path 4 arranges air-flow measurement device 6 respectively.
The present embodiment is by two heat conduction cylindrical shells thus carry out contrast test, thus makes test data more accurate.
Wherein in an embodiment, described temperature measuring equipment 2 is also provided with thermometric path in the stove for measuring described temperature programme stove degree.
The temperature of two heat conduction cylindrical shells 5 and temperature programme stove degree measured respectively by temperature measuring equipment 2, in order to regulate temperature programme case internal temperature thus to make coal temperature be controlled better.
Preferably, in described stove, the point for measuring temperature 21 of thermometric path is placed between two described heat conduction cylindrical shells 5.
Be illustrated in figure 2 the workflow diagram of a kind of coal consumption oxygen testing method adopting above-mentioned coal consumption oxygen speed testing device to carry out of the present invention, comprise:
Step S1, described heat conduction cylindrical shell mid-enter the coal body of predetermined size;
Step S2, controls the heating of described temperature programme stove, and sends into preheated air by described air supply device;
Step S3, the temperature of described heat conduction cylindrical shell is measured as heating-up temperature by described temperature measuring equipment, and under being determined at described heating-up temperature by described measuring equipment for oxygen concentration ard, first oxygen concentration of the first test point in described heat conduction cylindrical shell, and the second oxygen concentration of the second test point in described heat conduction cylindrical shell, determine that the horizontal range of described first test point and described second test point is as heating distance, determines to heat wind supply quantity by described air-flow measurement device;
Step S4, according to described first oxygen concentration under described heating-up temperature, described second oxygen concentration, described heating distance, the porosity of described heating wind supply quantity, described coal body and the air feed area of described heat conduction cylindrical shell, determine the oxygen consumption rate that described heating-up temperature is corresponding;
Step S5, if described heating-up temperature does not reach preset requirement temperature, then perform step S3 ~ step S4, until described heating-up temperature reaches preset requirement temperature, thus obtain multiple heating-up temperature, and the oxygen consumption rate corresponding with different heating temperature is as heating-up temperature and oxygen consumption rate relation.
Wherein in an embodiment, also comprise:
Step S6, when described heating-up temperature reaches preset requirement temperature, then described temperature programme stove stops heating, opens the fire door of described temperature programme stove;
Step S7, the temperature of described heat conduction cylindrical shell is measured as falling hot temperature degree by described temperature measuring equipment, and under falling hot temperature degree described in being determined at by described measuring equipment for oxygen concentration ard, the trioxid concentration of the 3rd test point in described heat conduction cylindrical shell, and the 4th oxygen concentration of the 4th test point in described heat conduction cylindrical shell, determine that the horizontal range of described 3rd test point and described 4th test point is as falling hot distance, determines to fall hot wind supply quantity by described air-flow measurement device;
Step S8, according to described described trioxid concentration of falling under hot temperature degree, described 4th oxygen concentration, described in fall heat distance, described in hot wind supply quantity, the porosity of described coal body and the body of heater air feed area of described temperature programme stove fall, the oxygen consumption rate that hot temperature degree is corresponding is fallen described in determining;
Step S9, if described in fall hot temperature degree and do not reach preset stopping temperature, then perform step S7 ~ step S8, until described in fall hot temperature degree and reach preset stopping temperature, thus obtain multiplely falling hot temperature degree, and from different oxygen consumption rate corresponding to hot temperature degree of falling as falling hot temperature degree and oxygen consumption rate relation.
Wherein in an embodiment, also comprise:
Step S10, when described heating-up temperature reaches preset stopping temperature, then changes the coal body of other predetermined size, re-executes step S1 ~ step S9 in described heat conduction cylindrical shell;
Multiple exercise step S10, thus the heating-up temperature obtained under multiple different-grain diameter and oxygen consumption rate relation, and under multiple different-grain diameter, hot temperature degree and oxygen consumption rate relation are fallen.
Oxygen consumption rate V under above-mentioned temperature T 0(T) following formulae discovery can be adopted:
in formula, Q is wind supply quantity, and S is body of heater air feed area, C ibe the oxygen concentration of i-th test point, C i+1be the oxygen concentration of the i-th+1 test point, z i+1-z ibe the horizontal range of the i-th+1 test point and i-th test point, namely refer to Z in vertical direction i+1and Z ibetween distance, n is porosity, and the coal body of different-grain diameter has different porositys.
An example of the present invention is as follows: proving installation as shown in Figure 1, at two diameter 10cm, in the heat conduction cylindrical shell 5 (being copper pipe in the present example) of long 22cm, loading coal amount 1kg, for making ventilation even, about 2cm free space (adopting 100 order copper mesh to hold coal sample) is left at upper and lower two ends respectively, 100 order copper mesh are namely every device for coal 51, then the interior heating of the temperature programme stove utilizing SCR control temperature is placed in, and send into preheated air, gas ingredients during determination and analysis difference coal temperature, after temperature reaches requirement, stop heating, open fire door, carry out natural convection cooling, and gas ingredients during determination and analysis difference coal temperature.Thus measuring and calculating show that each coal sample is under different-grain diameter, oxygen consumption rate and coal kelvin relation curve.
In mixed coal, the change of each point oxygen concentration is mainly relevant with convection current (air flows), the factor such as (molecular diffusion and turbulent diffusion) and coal oxygen effect oxygen consumption that spreads; Therefore in mixed coal heap, the convective-diffusive equation of oxygen concentration distribution is:
∂ C ∂ τ = div ( D · grad ( C ) ) - div ( uC ) - - - ( 1 )
In formula, D is the coefficient of diffusion of oxygen in broken coal; U be distinguished and admirable in space mean flow rate, the keto consumpting speed that V (T) is unit entity coal, mol/ (cm 3.s).
Under this test condition, because leakage intensity is less, and main centrally direction of principal axis flowing is therefore, only can to consider in coal body oxygen concentration distribution equation on axis direction:
∂ C ∂ i = ∂ ∂ Z [ D · ( ∂ C ∂ Z ) ] - ∂ ( uC ) ∂ Z + V ( T ) - - - ( 2 )
So keto consumpting speed is:
V ( T ) = ∂ C ∂ τ + ∂ ( uC ) ∂ Z - ∂ ∂ Z ( D · ∂ C ∂ Z ) - - - ( 3 )
According to oxygen concentration and the leakage intensity of measuring point each in test furnace, suppose distinguished and admirable only flowing in the vertical direction and constant flow rate, ignore the diffusion of oxygen in mixed coal and oxygen concentration rate over time, in minute cells, coal temperature is even, then keto consumpting speed V (T) is:
V ( T ) = u · dC dZ - - - ( 4 )
In formula, dZ is the distance of gas flow through micro unit, cm;
Known by chemical kinetics and chemical equilibrium knowledge:
V(T)＝K·C (5)
In formula, C is oxygen concentration; K is chemical reaction constant.
Because keto consumpting speed is directly proportional to oxygen concentration, therefore keto consumpting speed V in fresh air 0(T) be:
V 0 ( T ) = C 0 C · V ( T ) - - - ( 6 )
Wherein C 0for the oxygen concentration in fresh air, then central axis any two points (Z 1and Z 2) between oxygen utilization:
dC = - V 0 ( T ) × C C 0 × S · n Q dz - - - ( 7 )
Both sides integration, when temperature one timing, C 0constant, then:
V 0 ( T ) = Q · C 0 S · n · ( z i + 1 - z i ) · ln C i C i + 1 - - - ( 8 )
In formula, Q is wind supply quantity, and S is body of heater air feed area.
Can calculate according to above formula and test data, coal keto consumpting speed and oxygen concentration, coal kelvin relation under fresh air.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.

Claims (10)

1. a coal consumption oxygen speed testing device, it is characterized in that, comprise: temperature programme stove, temperature measuring equipment, measuring equipment for oxygen concentration ard and air supply device, at least one is provided with for holding the heat conduction cylindrical shell of coal body in described temperature programme stove, described heat conduction cylindrical shell is connected with described temperature measuring equipment, described measuring equipment for oxygen concentration ard and described air supply device respectively, and described air supply device is also provided with air-flow measurement device.
2. coal consumption oxygen speed testing device according to claim 1, is characterized in that, arranges every device for coal at the top of described heat conduction cylindrical shell or bottom.
3. coal consumption oxygen speed testing device according to claim 2, is characterized in that, described every device for coal be many orders copper mesh.
4. coal consumption oxygen speed testing device according to claim 1, is characterized in that, described heat conduction cylindrical shell is copper pipe.
5. coal consumption oxygen speed testing device according to claim 1, it is characterized in that, described heat conduction cylindrical shell is two, described temperature measuring equipment is connected with two described heat conduction cylindrical shells respectively by two heat-conducting cylinder body examination temperature paths, described measuring equipment for oxygen concentration ard is connected with two described heat conduction cylindrical shells respectively by two test accesss, described air supply device is connected with two described heat conduction cylindrical shells respectively by two air feed paths, and each air feed path arranges air-flow measurement device respectively.
6. coal consumption oxygen speed testing device according to claim 5, is characterized in that, described temperature measuring equipment is also provided with thermometric path in the stove for measuring described temperature programme stove degree.
7. coal consumption oxygen speed testing device according to claim 6, is characterized in that, in described stove, the point for measuring temperature of thermometric path is placed between two described heat conduction cylindrical shells.
8. the coal consumption oxygen testing method adopting coal consumption oxygen speed testing device according to claim 1 to carry out, is characterized in that, comprising:
Step (S1), described heat conduction cylindrical shell mid-enter the coal body of predetermined size;
Step (S2), controls the heating of described temperature programme stove, and sends into preheated air by described air supply device;
Step (S3), the temperature of described heat conduction cylindrical shell is measured as heating-up temperature by described temperature measuring equipment, and under being determined at described heating-up temperature by described measuring equipment for oxygen concentration ard, first oxygen concentration of the first test point in described heat conduction cylindrical shell, and the second oxygen concentration of the second test point in described heat conduction cylindrical shell, determine that the horizontal range of described first test point and described second test point is as heating distance, determines to heat wind supply quantity by described air-flow measurement device;
Step (S4), according to described first oxygen concentration under described heating-up temperature, described second oxygen concentration, described heating distance, the porosity of described heating wind supply quantity, described coal body and the air feed area of described heat conduction cylindrical shell, determine the oxygen consumption rate that described heating-up temperature is corresponding;
Step (S5), if described heating-up temperature does not reach preset requirement temperature, then perform step (S3) ~ step (S4), until described heating-up temperature reaches preset requirement temperature, thus obtain multiple heating-up temperature, and the oxygen consumption rate corresponding with different heating temperature is as heating-up temperature and oxygen consumption rate relation.
9. coal consumption oxygen testing method according to claim 8, is characterized in that, also comprise:
Step (S6), when described heating-up temperature reaches preset requirement temperature, then described temperature programme stove stops heating, opens the fire door of described temperature programme stove;
Step (S7), the temperature of described heat conduction cylindrical shell is measured as falling hot temperature degree by described temperature measuring equipment, and under falling hot temperature degree described in being determined at by described measuring equipment for oxygen concentration ard, the trioxid concentration of the 3rd test point in described heat conduction cylindrical shell, and the 4th oxygen concentration of the 4th test point in described heat conduction cylindrical shell, determine that the horizontal range of described 3rd test point and described 4th test point is as falling hot distance, determines to fall hot wind supply quantity by described air-flow measurement device;
Step (S8), according to described described trioxid concentration of falling under hot temperature degree, described 4th oxygen concentration, described in fall heat distance, described in hot wind supply quantity, the porosity of described coal body and the body of heater air feed area of described temperature programme stove fall, the oxygen consumption rate that hot temperature degree is corresponding is fallen described in determining;
Step (S9), if described in fall hot temperature degree and do not reach preset stopping temperature, then perform step (S7) ~ step (S8), until described in fall hot temperature degree and reach preset stopping temperature, thus obtain multiplely falling hot temperature degree, and from different oxygen consumption rate corresponding to hot temperature degree of falling as falling hot temperature degree and oxygen consumption rate relation.
10. coal consumption oxygen testing method according to claim 9, is characterized in that, also comprise:
Step (S10), when described heating-up temperature reaches preset stopping temperature, then changes the coal body of other predetermined size in described heat conduction cylindrical shell, re-executes step (S1) ~ step (S9);
Multiple exercise step (S10), thus the heating-up temperature obtained under multiple different-grain diameter and oxygen consumption rate relation, and under multiple different-grain diameter, hot temperature degree and oxygen consumption rate relation are fallen.
CN201410835783.5A 2014-12-29 2014-12-29 Device and method for testing oxygen consumption rate of coal Pending CN104569027A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410835783.5A CN104569027A (en) 2014-12-29 2014-12-29 Device and method for testing oxygen consumption rate of coal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410835783.5A CN104569027A (en) 2014-12-29 2014-12-29 Device and method for testing oxygen consumption rate of coal

Publications (1)

Publication Number Publication Date
CN104569027A true CN104569027A (en) 2015-04-29

Family

ID=53085590

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410835783.5A Pending CN104569027A (en) 2014-12-29 2014-12-29 Device and method for testing oxygen consumption rate of coal

Country Status (1)

Country Link
CN (1) CN104569027A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105842275A (en) * 2016-03-28 2016-08-10 河南理工大学 Steam driven coal gas desorption heat conduction test method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11183361A (en) * 1997-12-22 1999-07-09 Canon Inc High temperature and high humidity test device, and heating and humidifying method thereof
CN1908603A (en) * 2005-08-01 2007-02-07 李韫言 Thermal sensor using micro machining heat separation structure and preparation thereof
CN1940547A (en) * 2006-09-29 2007-04-04 重庆大学 Internal slag heat current inspector and inspection for continuously-casting crystallizer
CN101435786A (en) * 2007-11-16 2009-05-20 富准精密工业(深圳)有限公司 Hot pipe performance detecting device
CN101726512A (en) * 2009-12-23 2010-06-09 煤炭科学研究总院沈阳研究院 Method for rapidly testing shortest coal spontaneous combustion period by using external constant heating flow source
CN102507645A (en) * 2011-12-13 2012-06-20 南通大学 Heat-insulation performance testing device of heat-insulation coating for textile
CN204422451U (en) * 2014-12-29 2015-06-24 中国神华能源股份有限公司 Coal consumption oxygen speed testing device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11183361A (en) * 1997-12-22 1999-07-09 Canon Inc High temperature and high humidity test device, and heating and humidifying method thereof
CN1908603A (en) * 2005-08-01 2007-02-07 李韫言 Thermal sensor using micro machining heat separation structure and preparation thereof
CN1940547A (en) * 2006-09-29 2007-04-04 重庆大学 Internal slag heat current inspector and inspection for continuously-casting crystallizer
CN101435786A (en) * 2007-11-16 2009-05-20 富准精密工业(深圳)有限公司 Hot pipe performance detecting device
CN101726512A (en) * 2009-12-23 2010-06-09 煤炭科学研究总院沈阳研究院 Method for rapidly testing shortest coal spontaneous combustion period by using external constant heating flow source
CN102507645A (en) * 2011-12-13 2012-06-20 南通大学 Heat-insulation performance testing device of heat-insulation coating for textile
CN204422451U (en) * 2014-12-29 2015-06-24 中国神华能源股份有限公司 Coal consumption oxygen speed testing device

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
李艳增: "望峰岗巷道穿采空区自燃预测与控制研究", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 *
王晓宁: "小窖煤层自燃引发的矿井火灾控制技术研究", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105842275A (en) * 2016-03-28 2016-08-10 河南理工大学 Steam driven coal gas desorption heat conduction test method
CN105842275B (en) * 2016-03-28 2018-07-03 河南理工大学 A kind of test method of steam drive coal gas desorption heat transfer

Similar Documents

Publication Publication Date Title
CN106124357B (en) A kind of multi-functional coal sample heating and oxidation rule test platform of automatic sampling
AU2020102549A4 (en) Experimental platform for measuring characteristic parameters of spontaneous combustion of coal
CN102353763B (en) Small simulation device for testing spontaneous combustion period of coal
CN206235585U (en) A kind of coal sample heating and oxidation test device
CN205103224U (en) Oil bath formula coal low -temperature oxidation test system
CN107421987B (en) Device and method for measuring low-temperature oxidation heat generation rate of coal
CN106092813A (en) A kind of Thermal Properties of Coke determinator and method
CN104483350A (en) Device for simulating programmed temperature rising and adiabatic oxidation of coal
CN108007809A (en) One kind is rapidly heated wide-range thermogravimetric analyzer
CN104865164B (en) A kind of test device and test method of gas diffusivity
CN105445321B (en) The detection means of combustible material hot property under the conditions of a kind of programmable temperature control
CN104849167A (en) Device for detecting isothermal adsorption and desorption of moisture of tobacco slice or cut tobacco biomass
CN208443807U (en) A kind of fireproof coating fire resistance detector
CN104777189B (en) A kind of oxygen-enriched combusting assesses experimental provision
CN107621480B (en) Device and method for detecting spontaneous combustion ignition period of coal based on leading heat insulation
CN106442857B (en) A kind of CO2 emission detection method based on determination of oxygen content
CN114496104B (en) Method and system for evaluating spontaneous combustion degree of residual coal in goaf under coal mining condition
CN204422451U (en) Coal consumption oxygen speed testing device
CN207516197U (en) One kind is rapidly heated wide-range thermogravimetric analyzer
CN101196484B (en) Device and method for measuring dynamic self-heating rate of vulcanizing ore
CN203053959U (en) Coal sample warming simulation test bench
CN103063700B (en) Method for synchronously measuring apparent thermophysical property and autoignition temperature of combustible particles
CN104569027A (en) Device and method for testing oxygen consumption rate of coal
CN107449847A (en) The chromatography of Period of Coal Seam Spontaneous Combustion symbolic gas and index preferably determine device
CN204142664U (en) A kind of miniature calorimeter

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20150429