CN201273896Y - Measuring apparatus for coal combustion tendency - Google Patents
Measuring apparatus for coal combustion tendency Download PDFInfo
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- CN201273896Y CN201273896Y CNU2008201616824U CN200820161682U CN201273896Y CN 201273896 Y CN201273896 Y CN 201273896Y CN U2008201616824 U CNU2008201616824 U CN U2008201616824U CN 200820161682 U CN200820161682 U CN 200820161682U CN 201273896 Y CN201273896 Y CN 201273896Y
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- 239000003245 coal Substances 0.000 title claims abstract description 81
- 238000002485 combustion reaction Methods 0.000 title abstract description 8
- 239000007789 gas Substances 0.000 claims abstract description 102
- 238000012360 testing method Methods 0.000 claims abstract description 43
- 238000004458 analytical method Methods 0.000 claims abstract description 24
- 239000012159 carrier gas Substances 0.000 claims abstract description 15
- 238000002347 injection Methods 0.000 claims description 19
- 239000007924 injection Substances 0.000 claims description 19
- 230000006641 stabilisation Effects 0.000 claims description 18
- 238000011105 stabilization Methods 0.000 claims description 18
- 230000003647 oxidation Effects 0.000 abstract description 12
- 238000007254 oxidation reaction Methods 0.000 abstract description 12
- 230000002269 spontaneous effect Effects 0.000 abstract description 7
- 238000005070 sampling Methods 0.000 abstract description 3
- 238000000691 measurement method Methods 0.000 abstract 1
- 239000000523 sample Substances 0.000 description 69
- 238000000034 method Methods 0.000 description 20
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 17
- 239000001301 oxygen Substances 0.000 description 17
- 229910052760 oxygen Inorganic materials 0.000 description 17
- 238000012546 transfer Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 230000036284 oxygen consumption Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 1
- 238000004166 bioassay Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012956 testing procedure Methods 0.000 description 1
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Abstract
The utility model relates to a measuring device for coal spontaneous combustion tendency, which consists of a gas sample analysis and test system, a temperature-controlled box and an acquisition and control system which are arranged in an identical casing body; the gas sample analysis and test system consists of a carrier gas inlet pipeline entering the casing body, a chromatographic column connected with the carrier gas inlet pipeline, a thermal conductivity detector, a quantitative sampling pipe, and a plurality of micro magnet valves which control the ingress and egress of the gas flow of the carrier gas inlet pipeline; a coal sample reactor installed on a bracket is arranged in the temperature-controlled box, an gas inlet connected with a dry air inlet pipe is arranged at the bottom part of the coal sample reactor, and a gas outlet connected with the pipeline of the gas sample analysis and test system is arranged at the upper part; and the acquisition and control system consists of a temperature-controlled box temperature sensor arranged in the temperature-controlled box, a coal sample temperature sensor arranged on the coal sample reactor, a control module, an acquisition module, a display screen and a control panel. The measuring device is applicable to the measuring of the corresponding index parameters to the coal spontaneous combustion tendency oxidation kinetics measurement method, and has the advantages of compact structure, low cost, simple operation and accurate and reliable test result.
Description
Technical field
The utility model relates to a kind of determining coal ignitability device, is particularly useful for the mensuration of coal ignitability's oxidation kinetics determination method corresponding index parameter.
Background technology
Spontaneous combustion of coal is one of major casualty that faces in coal mining and the storage and transport process.The spontaneous combustion tendency of coal is represented the complexity of coal generation spontaneous combustion, and the spontaneous combustion tendency of accurately measuring coal has crucial meaning to the preventing and controlling of instructing this disaster.The coal ignitability is the embodiment of the inherent oxidability of coal, and the oxidation temperature-raising characteristic of coal and oxygen consumption characteristic are the good index of this characteristic of reflection.In order to study the spontaneous combustion tendency of coal, different researchers is analyzed from the angle of oxidation of coal temperature-raising characteristic and oxygen consumption characteristic, and these research work are concluded and can be divided into two types: 1. test single temperature or oxygen utilization parameter; 2. simultaneously probe temperature and oxygen utilization parameter and carry out analysis-by-synthesis.Wherein, for the test of temperature parameter, main at present employing temperature sensor carries out; For the test of oxygen utilization, main at present employing gas chromatograph is tested oxygen concentration, afterwards by calculating oxygen utilization; And the time test for two parameters, existing related device then is coal reaction unit, temperature sensor and three kinds of instruments of gas chromatograph simply to be pieced together become a system basically, respectively temperature and oxygen concentration is tested.Though can study the ignition quality of coal from different perspectives, but aspect coal ignitability's standardization mensuration, the existing bioassay standard of coal industry is the chromatogram oxygen adsorption method, and in addition, coal ignitability's oxidation kinetics method also will be announced in the near future as industry standard.As main evaluation index, it comes down to coal physics oxygen utilization at normal temperatures to belong to single index determining method as index the chromatogram oxygen adsorption method with the adsorb oxygen tolerance of 1g dry coal under 30 ℃, and corresponding determinator is a ZRJ-1 moulded coal pyrophorisity analyzer.Oxidation kinetics determination method coal sample reactor when the coal sample temperature reaches 70 ℃ under the test procedure intensification condition the give vent to anger oxygen concentration of implication sample and point of crossing temperature afterwards, calculate coal ignitability's judgement index, and the coal ignitability is classified according to this index.The oxidation kinetics determination method belongs to the method for aggregative indicator, new method as coal ignitability's evaluation, this method does not also have corresponding special test device at present, oxidation of coal reaction unit, temperature collecting device and gas chromatograph simply can only be pieced together becomes a test macro, realizes the test of temperature and two parameters of oxygen concentration each other by the mode of artificial sample, record.Therefore, the existing test macro of oxidation kinetics determination method comprises multiple instrument, the cost costliness; Operation steps complexity, test process need manually sampling, record, analyze, and automaticity is low, and test result easily causes error; Simultaneity factor is the simple combination of multiple instrument, and is loosely organized, and it is big to take up room, thereby can't satisfy coal ignitability's standardization mensuration and the needs that the oxidation kinetics determination method is promoted the use of.
Summary of the invention
The purpose of this utility model is the weak point that overcomes in the prior art, and a kind of compact conformation is provided, and is with low cost, easy and simple to handle, and test result is the determining coal ignitability device accurately and reliably.
For achieving the above object, the utility model is made of the gas sample analysis of test system, temperature-controlled box and the acquisition control system that are located in the same housing; Wherein: gas sample analysis of test system comprises a plurality of gas circuits that the carrier gas air inlet pipeline links to each other, be connected with chromatographic column on the gas circuit, chromatographic column is connected with the thermal conductivity detector (TCD) that links to each other with the emptying gas outlet, be connected with simultaneously the quantitative sample injection pipe that links to each other with standard gas sample injection port with the emptying gas outlet on the gas circuit, quantitative sample injection pipe two ends are respectively equipped with miniature electromagnetic valve, two gas circuit three prong junctions are provided with miniature electromagnetic valve, also are provided with miniature electromagnetic valve between two gas circuits connect; Be provided with the coal sample reactor that is placed on the support in the temperature-controlled box, the coal sample reactor bottom is provided with the air intake opening that links to each other with the dry air air inlet pipeline, and top is provided with the gas outlet that links to each other with gas sample analysis of test system pipeline; Acquisition control system by be located at the temperature-controlled box temperature sensor in the temperature-controlled box, coal sample temperature sensor, control module, acquisition module, display screen and the control panel that is located in the coal sample reactor formed.
The described carrier gas air inlet pipeline that enters in the gas sample analysis of test system is provided with the voltage stabilization and current stabilization valve; Be in series with voltage stabilization and current stabilization valve and gas flow controller on the described dry air air inlet pipeline that enters in the temperature-controlled box.
The utility model is applicable to the test of coal ignitability's index parameter.By being set, the coal sample reactor charge air flow amount and the temperature-controlled box method of operation measure required oxidation intensification environment for coal sample provides, the automatic open close samples of coal pulled reactor implication sample of giving vent to anger by the control miniature electromagnetic valve, adopt temperature sensor that coal sample temperature and temperature-controlled box temperature are tested, adopt analysis of test system that the oxygen concentration of coal sample reactor gas outlet gas is analyzed, temperature and oxygen concentration test result are by the acquisition control system collection and transfer to computing machine, have realized integrated, the robotization of the test of temperature and oxygen concentration.This device main body is temperature-controlled box, analysis of test system and acquisition control system partly, and has realized effective combination of three parts, compact conformation, reasonable; Device does not need to dispose independent gas chromatographicanalyzer, has significantly reduced manufacturing cost, and device integral body takes up room little; The operational factor of device is controlled by the control platform of computing machine or the control panel of acquisition control system, the sampling analysis process of the collection of temperature and gas chromatograph is automatically carries out, analysis result transfers to computing machine by acquisition control system by data line and writes down, stores, the automaticity height, easy and simple to handle; Key step in the test process is all set by control system, has significantly reduced the error that manually-operated may cause, reliable test result.It is integrated that this device has realized that coal ignitability point of crossing temperature, two index parameters of oxygen concentration are tested, and compact conformation is reasonable, and is with low cost, and the automaticity height is easy and simple to handle, and test result has practicality widely accurately and reliably.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Among the figure: 1-analysis of test system, 2-temperature-controlled box, 3-acquisition control system, 4-carrier gas air inlet pipeline, 5-dry air air inlet pipeline, 6-voltage stabilization and current stabilization valve, 7-temperature-controlled box temperature sensor, 8-gas flow controller, 9-coal sample reactor, the 10-air intake opening, 11-gas outlet, 12-coal sample temperature sensor, the 13-support, 14-chromatographic column injection port, 15-chromatographic column, the 16-thermal conductivity detector (TCD), 17-quantitative sample injection pipe, 18,19,20, the 22-three-way solenoid valve, the 21-Through solenoid valve, 23-voltage stabilization and current stabilization valve, 24-emptying gas outlet, 25-standard gas sample injection port, 26-control panel display screen, the 27-control panel, A, B, C, D, E, F, G, H, I, J, K, L, the M-gas circuit.
Embodiment
Below in conjunction with accompanying drawing an embodiment of the present utility model is further described:
Shown in the accompanying drawing, the utility model mainly is made up of analysis of test system 1, temperature-controlled box 2 and acquisition control system 3.Be provided with chromatographic column 15 and thermal conductivity detector (TCD) 16 in the analysis of test system 1, and link to each other with carrier gas air inlet pipeline 4 with the gas outlet 11 of standard gas sample air intake opening 25, coal sample reactor by the stainless steel pipeline, between the gas circuit connected state control by the keying of setting miniature electromagnetic valve.Carrier gas air inlet pipeline 4 is provided with voltage stabilization and current stabilization valve 23, gas sample analysis of test system 1 comprises a plurality of gas circuits that link to each other with carrier gas air inlet pipeline 4, gas circuit H connects the chromatographic column injection port 14 of chromatographic column 15, chromatographic column 15 connects the thermal conductivity detector (TCD) 16 that links to each other with emptying gas outlet 24, be connected with simultaneously the quantitative sample injection pipe 17 that links to each other with standard gas sample injection port 25 with emptying gas outlet 24 on the gas circuit E, quantitative sample injection pipe 17 two ends are provided with miniature electromagnetic valve 18 and miniature electromagnetic valve 19, gas circuit G, I, L three prong junctions are provided with miniature electromagnetic valve 20, gas circuit A, B is provided with miniature electromagnetic valve 21, gas circuit C between connecting, J, K three prong junctions are provided with miniature electromagnetic valve 22; Be provided with the coal sample reactor 9 that is placed on the support 13 in the temperature-controlled box 2, temperature-controlled box temperature sensor 7 and 12, the air inlet pipeline 10 of coal sample reactor, coal sample reactor outlet pipe 11, coal sample reactor 9 bottoms are provided with the air intake opening 10 that links to each other with dry air air inlet pipeline 5, top is provided with the gas outlet 11 that links to each other with gas sample analysis of test system 1 pipeline, enter on the dry air air inlet pipeline 5 in the temperature-controlled box 2 and be in series with voltage stabilization and current stabilization valve 6 and gas flow controller 8, feed the dry air of regime flow to coal sample reactor 9 air intake openings by voltage stabilization and current stabilization valve 6 and gas flow controller 8, coal sample reactor 9 gas outlets adopt the injection port of chromatographic column 15 in stainless-steel tube and the analysis of test system to link, utilize and set miniature electromagnetic valve 18,19,20,21,22 keying is controlled gas circuit, opens or closes when adopting a plurality of miniature electromagnetic valves can be arranged on any time or coal sample temperature to reach setting value.Acquisition control system 3 by be located at the temperature-controlled box temperature sensor 7 in the temperature-controlled box 2, coal sample temperature sensor 12, control module, acquisition module, display screen 26 and the control panels 27 that are located in the coal sample reactor 9 are formed.
The course of work: before the test, need calibrate system, keying by control three- way solenoid valve 18,19,20,22 and Through solenoid valve 21, gas circuit A-B-D-M-F, gas circuit I-G-H and gas circuit C-K are communicated with, inject standard gas sample to standard gas sample injection port 25, standard gas sample flows along gas circuit A-B-D-M-F and makes quantitative sample injection pipe 17 be full of standard gas sample, carrier gas this moment is flowed along gas circuit I-G-H and enter air by emptying gas outlet 24 behind chromatographic column 15, thermal conductivity detector (TCD) 16, and coal sample reactor gas outlet gas flows along gas circuit C-K and enters air by emptying gas outlet 24; Subsequently, keying by control three- way solenoid valve 18,19,20,22 and Through solenoid valve 21, gas circuit I-L-D-M-E-H and gas circuit C-K are communicated with, coal sample reactor gas outlet gas still flowed along gas circuit C-K and entered air by emptying gas outlet 24 this moment, carrier gas is flowed along gas circuit I-L-D-M-E-H, and process quantitative sample injection pipe 17 is sent standard gas sample wherein into chromatographic column 15 and thermal conductivity detector (TCD) 16 is analyzed, and according to analysis result analysis of test system is made corresponding debugging.During test, the coal sample top evenly covers one deck asbestos; Feeding under the situation of regime flow dry air to the coal sample reactor, it is 40 ℃ of temperature-constant operation modes that temperature-controlled box is set, and realizes that the coal sample temperature is uniform and stable at 40 ℃; According to the testing procedure of coal ignitability's oxidation kinetics determination method temperature-controlled box 2 is set and is constant temperature or temperature-programmed mode operation, and the air intake opening airshed of the coal sample reactor 9 of adjustment correspondence, adopt 7,12 pairs of temperature-controlled box temperature of temperature sensor and coal sample temperature to test respectively; When the coal sample temperature reaches setting value, keying by control three- way solenoid valve 18,19,20,22 and Through solenoid valve 21 is controlled gas circuit once more, gas circuit C-J-M-F and gas circuit I-G-H are communicated with, give vent to anger implication sample along gas circuit C-J-M-F mobile be full of quantitative sample injection pipe 17 with coal sample reactor 9 this moment, and carrier gas is flowed along gas circuit I-G-H and enter air by emptying gas outlet 24 behind chromatographic column 15, thermal conductivity detector (TCD) 16; Keying by control electromagnetic valve is communicated with gas circuit I-L-D-M-E-H and gas circuit C-K again, carrier gas this moment is given vent to anger along the mobile coal sample reactor 9 that will wherein be full of through quantitative sample injection pipe 17 of gas circuit I-L-D-M-E-H, and the implication sample is sent into chromatographic column 15 and thermal conductivity detector (TCD) 16 is analyzed, and coal sample reactor 9 gas outlet gases flow along gas circuit C-K and enter air by emptying gas outlet 24.According to the requirement of measuring accuracy, coal sample reactor 9 is given vent to anger after the analysis of implication sample finishes, can re-inject standard gas sample according to the calibration steps of front and calibrate, guarantee precision of test result.The give vent to anger data-interface of oxygen concentration by acquisition control system 3 of implication sample of the test result of coal sample temperature, temperature-controlled box temperature and coal sample reactor 9 transfers to that computing machine shows, record, and this process adopts same computing machine to finish.
Claims (3)
1, a kind of determining coal ignitability device is characterized in that: it is made of the gas sample analysis of test system (1), temperature-controlled box (2) and the acquisition control system (3) that are located in the same housing; Wherein: gas sample analysis of test system (1) comprises a plurality of gas circuits that link to each other with carrier gas air inlet pipeline (4), be connected with chromatographic column (15) on the gas circuit (H), chromatographic column (15) is connected with the thermal conductivity detector (TCD) (16) that links to each other with emptying gas outlet (24), be connected with simultaneously the quantitative sample injection pipe (17) that links to each other with standard gas sample injection port (25) with emptying gas outlet (24) on the gas circuit (E), quantitative sample injection pipe (17) two ends are provided with miniature electromagnetic valve (18) and miniature electromagnetic valve (19), gas circuit (G, I, L) three prong junctions are provided with miniature electromagnetic valve (20), gas circuit (A, B) be provided with miniature electromagnetic valve (21), gas circuit (C between the connection, J, K) three prong junctions are provided with miniature electromagnetic valve (22); Be provided with the coal sample reactor (9) that is placed on the support (13) in the temperature-controlled box (2), coal sample reactor (9) bottom is provided with the air intake opening (10) that links to each other with dry air air inlet pipeline (5), and top is provided with the gas outlet (11) that links to each other with gas sample analysis of test system (1) pipeline; Acquisition control system (3) is made up of the coal sample temperature sensor (12), control module, acquisition module, display screen (26) and the control panel (27) that are located at the interior temperature-controlled box temperature sensor (7) of temperature-controlled box (2), be located in the coal sample reactor (9).
2, determining coal ignitability device according to claim 1 is characterized in that: the described carrier gas air inlet pipeline (4) that enters in the gas sample analysis of test system (1) is provided with voltage stabilization and current stabilization valve (23).
3, determining coal ignitability device according to claim 1 is characterized in that: be in series with voltage stabilization and current stabilization valve (6) and gas flow controller (8) on the described dry air air inlet pipeline (5) that enters in the temperature-controlled box (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201616824U CN201273896Y (en) | 2008-10-10 | 2008-10-10 | Measuring apparatus for coal combustion tendency |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201616824U CN201273896Y (en) | 2008-10-10 | 2008-10-10 | Measuring apparatus for coal combustion tendency |
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| CN201273896Y true CN201273896Y (en) | 2009-07-15 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102445527A (en) * | 2011-09-23 | 2012-05-09 | 太原理工大学 | Testing device for simulating spontaneous combustion and fire extinguishment processes of coal |
| CN102539376A (en) * | 2012-01-13 | 2012-07-04 | 中国矿业大学 | Method for determining physical oxygen sorption amount of functional groups on coal surface |
| CN103399035A (en) * | 2013-07-30 | 2013-11-20 | 辽宁工程技术大学 | Multi-functional coal sample spontaneous combustion oxidizing and warming experimental apparatus |
| CN103454307A (en) * | 2013-09-05 | 2013-12-18 | 中国矿业大学(北京) | Full-stage coal spontaneous combustion experimental system |
| CN104181197A (en) * | 2014-09-13 | 2014-12-03 | 新疆维吾尔自治区煤炭科学研究所 | Underground coal fire comprehensive experiment device |
| CN108459048A (en) * | 2017-12-19 | 2018-08-28 | 西安科技大学 | A kind of analyzer and analysis method for coal petrography spontaneous combustion oxidation specificity analysis |
| CN114200043A (en) * | 2021-12-01 | 2022-03-18 | 中煤科工集团沈阳研究院有限公司 | Coal spontaneous combustion mark gas detection system and method and gas storage device thereof |
| CN114935614A (en) * | 2022-05-24 | 2022-08-23 | 安徽理工大学 | Simulation experiment device and experiment method for analyzing reburning characteristics of coal body |
| CN115141639A (en) * | 2021-03-28 | 2022-10-04 | 上海梅山钢铁股份有限公司 | Sample arrangement device and method for coke dry quenching tank |
-
2008
- 2008-10-10 CN CNU2008201616824U patent/CN201273896Y/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102445527A (en) * | 2011-09-23 | 2012-05-09 | 太原理工大学 | Testing device for simulating spontaneous combustion and fire extinguishment processes of coal |
| CN102445527B (en) * | 2011-09-23 | 2014-08-06 | 太原理工大学 | Testing device for simulating spontaneous combustion and fire extinguishment processes of coal |
| CN102539376A (en) * | 2012-01-13 | 2012-07-04 | 中国矿业大学 | Method for determining physical oxygen sorption amount of functional groups on coal surface |
| CN102539376B (en) * | 2012-01-13 | 2013-07-03 | 中国矿业大学 | Method for determining physical oxygen sorption amount of functional groups on coal surface |
| CN103399035B (en) * | 2013-07-30 | 2015-05-13 | 辽宁工程技术大学 | Multi-functional coal sample spontaneous combustion oxidizing and warming experimental apparatus |
| CN103399035A (en) * | 2013-07-30 | 2013-11-20 | 辽宁工程技术大学 | Multi-functional coal sample spontaneous combustion oxidizing and warming experimental apparatus |
| CN103454307B (en) * | 2013-09-05 | 2015-08-26 | 中国矿业大学(北京) | Full stage coal spontaneous combustion experimental system |
| CN103454307A (en) * | 2013-09-05 | 2013-12-18 | 中国矿业大学(北京) | Full-stage coal spontaneous combustion experimental system |
| CN104181197A (en) * | 2014-09-13 | 2014-12-03 | 新疆维吾尔自治区煤炭科学研究所 | Underground coal fire comprehensive experiment device |
| CN108459048A (en) * | 2017-12-19 | 2018-08-28 | 西安科技大学 | A kind of analyzer and analysis method for coal petrography spontaneous combustion oxidation specificity analysis |
| CN108459048B (en) * | 2017-12-19 | 2024-03-05 | 西安科技大学 | Analyzer and analysis method for spontaneous combustion oxidation characteristic analysis of coal rock |
| CN115141639A (en) * | 2021-03-28 | 2022-10-04 | 上海梅山钢铁股份有限公司 | Sample arrangement device and method for coke dry quenching tank |
| CN115141639B (en) * | 2021-03-28 | 2024-06-04 | 上海梅山钢铁股份有限公司 | Sample arranging device and method for coke dry quenching tank |
| CN114200043A (en) * | 2021-12-01 | 2022-03-18 | 中煤科工集团沈阳研究院有限公司 | Coal spontaneous combustion mark gas detection system and method and gas storage device thereof |
| CN114200043B (en) * | 2021-12-01 | 2023-09-05 | 中煤科工集团沈阳研究院有限公司 | System and method for detecting coal natural ignition sign gas and gas storage device thereof |
| CN114935614A (en) * | 2022-05-24 | 2022-08-23 | 安徽理工大学 | Simulation experiment device and experiment method for analyzing reburning characteristics of coal body |
| CN114935614B (en) * | 2022-05-24 | 2024-02-23 | 安徽理工大学 | Simulation experiment device and method for analyzing coal afterburning characteristics |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090715 Termination date: 20091110 |