CN106990219A - A kind of coal spontaneous combustion tester - Google Patents
A kind of coal spontaneous combustion tester Download PDFInfo
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- CN106990219A CN106990219A CN201710257953.XA CN201710257953A CN106990219A CN 106990219 A CN106990219 A CN 106990219A CN 201710257953 A CN201710257953 A CN 201710257953A CN 106990219 A CN106990219 A CN 106990219A
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- coal
- oil
- coal sample
- oil sump
- temperature
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- 239000003245 coal Substances 0.000 title claims abstract description 125
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 15
- 230000002269 spontaneous effect Effects 0.000 title claims abstract description 15
- 239000000523 sample Substances 0.000 claims abstract description 95
- 238000001816 cooling Methods 0.000 claims description 24
- 239000007788 liquid Substances 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims 1
- 238000010304 firing Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 83
- 239000007789 gas Substances 0.000 description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 22
- 238000005520 cutting process Methods 0.000 description 9
- 238000009826 distribution Methods 0.000 description 8
- 238000002474 experimental method Methods 0.000 description 7
- 238000003756 stirring Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 238000004817 gas chromatography Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000001073 sample cooling Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/22—Fuels; Explosives
- G01N33/222—Solid fuels, e.g. coal
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention relates to a kind of coal spontaneous combustion tester, big with oil mass in the prior art to solve, firing rate is slow, and temperature is difficult to control, the problem of coal sample is heated uneven.Coal sample tank upper and lower end portion is respectively arranged with coal-in port and coal outlet；Oil piping system includes oil sump, oil pump and the oil circuit for constituting closed loop, and oil sump is coated at the top and bottom of coal sample tank periphery, oil sump and is connected respectively with coal sample pot sidewall；Temperature control system includes temp probe, temperature controller, electrically heated rod, temperature acquisition template, computer, temp probe is arranged inside surveyed coal sample and is connected with temperature controller, temperature controller is connected with electrically heated rod, electrically heated rod is located in oil sump, temp probe is also connected with temperature acquisition template, and temperature acquisition template is connected with computer；Air-channel system includes gas cylinder, gas cylinder and coal sample tank and preheats pipeline connection by gas, and gas preheating pipeline is located in oil sump, and coal sample tank is also connected with gas chromatograph, and gas chromatograph passes through computer control.
Description
Technical field
The invention belongs to coal performance test field, and in particular to a kind of coal spontaneous combustion tester.
Background technology
Coal sample needed for the existing oil-bath type temperature programming experimental provision for coal spontaneous combustion performance test is more, and is by coal
Sample tank is heated among being placed in oil sump, therefore it is big with oil mass, and firing rate is slow, and this also results in its conduction oil and coal sample temperature
Degree is whard to control, and the heated inequality of coal sample, simultaneously because coal sample tank is placed within oil sump and conduction oil is not easily taken out, dress takes coal
Complex steps are time-consuming during sample, and coal sample cooling rate is slow.
The content of the invention
The purpose of the present invention is：A kind of coal spontaneous combustion tester is provided, heating big with oil mass in the prior art to solve
Speed is slow, and temperature is difficult to control, the problem of coal sample is heated uneven.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of coal spontaneous combustion tester, it is characterized in that：Including coal sample tank, oil piping system, temperature control system and gas circuit
System, the coal sample tank upper and lower end portion, which is respectively arranged with coal-in port and coal outlet, coal-in port, is set into coal lid, coal outlet
It is upper that lid of producing coal is set；The oil piping system includes oil sump, oil pump and the oil circuit for constituting closed loop, the oil sump cladding
It is connected respectively with coal sample pot sidewall at the top and bottom of coal sample tank periphery, oil sump；The temperature control system includes temp probe, temperature control
Instrument, electrically heated rod, temperature acquisition template, computer, the temp probe are arranged inside surveyed coal sample and are connected with temperature controller,
The temperature controller is connected with electrically heated rod, and electrically heated rod is located in oil sump, and the temp probe is also connected with temperature acquisition template,
Temperature acquisition template is connected with computer；The air-channel system includes gas cylinder, gas cylinder and passes through gas economizer bank with the coal sample tank
Road is connected, and the gas preheating pipeline is located in oil sump, and the coal sample tank is also connected with gas chromatograph, and gas chromatograph passes through
The computer control.
Further, in addition to cooling system, the cooling system includes cooling tube, and cooling tube is arranged on the oil circuit
On.
Further, in addition to emission-control equipment, the coal sample tank is also connected with the emission-control equipment, at waste gas
Reason device is controlled by the computer.
Further, set between the gas cylinder and coal sample tank by pressure-reducing valve and flowmeter.
Further, the coal outlet, which is covered, is provided with support coal base.
Further, agitator is provided with the oil sump, the agitator is stretched into oil sump.
Further, oil sump side wall is provided with liquid level tube.
The present invention is relative to the beneficial effect of prior art：
Coal sample tank and oil sump are used global design by the present invention, not only reduce coal sample consumption and conduction oil consumption, are improved
Firing rate, is uniformly heated coal sample, and coal sample tank coal-in port and coal outlet be designed at outside oil sump, simplifies
Dress takes the operating process of coal sample, cooling rate is improved by increasing cooling system, while by optimizing temperature control system, using line
Property heating method solve the uppity shortcoming of existing apparatus temperature.
Brief description of the drawings
Fig. 1 is example structure schematic diagram；
Fig. 2 is distribution box side view in embodiment；
Fig. 3 is experimental box and distribution box front view in experimental example；
Fig. 4 is agitator position view in embodiment.
In figure：1- coal samples tank, 2- coal-in ports lid, 3- oil sumps, 4- oil sumps lid, 5- flanges, 6- conduction oils, 7- coal samples, 8- enter
Coal mouth, 9- coal sample tanks gas outlet, 10- experiments chamber door, 11- gas cylinders, 12- pressure-reducing valves, 13- flowmeters, 14- enter gas cutting ferrule, 15- and entered
Gas port, 16- gases preheating pipeline, 17- coal sample tanks air intake, 18- supports coal base, 19- produce coal lid, 20- distribution box doors, 21-
Threeway, 22- gas-chromatographies cutting ferrule, 23- magnetic valves one, 24- gas chromatographs, 25- outlets cutting ferrule, 26- magnetic valves two, 27- give up
Flash Gas Compression Skid System, 28- computers, 29- temp probes, 30- temperature controllers, 31- relays, 32- electrically heated rods, 33- temperature acquisitions
Template, 34- air switch, 35- switches one, 36- switches two, 37- switches three, 38- switches four, 39- switches five, 40- switches six, 41-
Micro machine, 42- oil pumps, 43- water pumps, 44- oil sumps valve, 45- Cistern valves, 46- oil leaking holes, 47- oil pipes, 48- oil fillers,
49- water tanks, 50- water outlet of water tank, 51- cooling tubes water inlet, 52- cooling tubes, 53- cooling tubes delivery port, 54- water tanks enter water
Mouth, 55- touching display screens, 56- liquid level tubes, 57- agitating shafts, 58- stirring vanes, 59- fans, 60- coal sample casees.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
As Figure 1-Figure 4, embodiment provides a kind of coal spontaneous combustion tester, including coal sample tank 1, oil piping system, temperature control
System, air-channel system and cooling system.The upper and lower end portion of coal sample tank 1 is respectively arranged with coal-in port 8 and coal outlet, coal-in port 8 and set
Insert and lid 19 of producing coal is set on coal lid 2, coal outlet；Oil piping system include constituting the oil sump 3 of closed loop, oil circuit and
Oil pump 42, oil sump 3 is coated on the periphery of coal sample tank 1, and the top and bottom of oil sump 3 are connected with the side wall of coal sample tank 1 respectively；Temperature control system bag
Temp probe 29, temperature controller 30, electrically heated rod 32, temperature acquisition template 33, computer 28 are included, temp probe 29, which is arranged at, to be surveyed
It is connected inside coal sample and with temperature controller 30, temperature controller 30 is connected with electrically heated rod 32, electrically heated rod 32 is located in oil sump 3, temperature
Probe 29 is also connected with temperature acquisition template 33, and temperature acquisition template 33 is connected with computer 28；Air-channel system include gas cylinder 11,
Gas cylinder 11 and coal sample tank 1 preheat pipeline 16 by gas and connected, and gas preheating pipeline 16 is located in oil sump 3, coal sample tank 1 also with gas
Chromatograph 24 is connected, and gas chromatograph 24 is controlled by computer 28；Cooling system includes water tank 49, cooling tube 52 and water pump
43, cooling tube 52 is arranged on oil piping system.Also include emission-control equipment 27, coal sample tank 1 also connects with emission-control equipment 27
Logical, emission-control equipment 27 is controlled by computer 28.Pressure-reducing valve 12 and flowmeter 13 are provided between gas cylinder 11 and coal sample tank 1.
The top of lid of producing coal 19 is provided with support coal base 18.Agitator is provided with oil sump 3, agitator includes micro machine 41, agitating shaft
57 and stirring vane 58, agitating shaft 57 is stretched into oil sump, and micro machine 41 drives stirring vane 58 to be stirred by agitating shaft 57.
The side wall of oil sump 3 is provided with liquid level tube 56.Oil sump 3 is fixed in experimental box, and the coal-in port 8 and coal outlet of coal sample tank 1 stretch out respectively
Experiment chamber door 10 is provided with outside experimental box, on experimental box, fan 59, temperature controller 30 and temperature acquisition template 33 are arranged on distribution box
Interior, temperature controller 30 controls the switch of electrically heated rod 32 by the break-make of control relay 31, and temp probe 29 can also be by temperature
Signal is transmitted to temperature acquisition template 33, and temperature acquisition template 33 transmits temperature signal to computer 28, is set on distribution box
Be equipped with distribution box door 20, gas by gas cylinder 11 through pressure-reducing valve 12 and flowmeter 13, then through entering gas cutting ferrule 14, air intake 15, gas
Preheat pipeline 16 and coal sample tank air intake 17 enters the bottom of coal sample tank 1.Gas is reached after coal sample 7 by coal sample tank gas outlet 9
Threeway 21, wherein reaching magnetic valve 1 by gas-chromatography cutting ferrule 22 all the way, gas enters gas chromatograph 24, another a-road-through
Cross outlet cutting ferrule 25 and reach magnetic valve 2 26, reconnect in emission-control equipment 27.Magnetic valve 1 and magnetic valve 2 26 are connected
In be additionally provided with computer 28, distribution box touching display screen 55, air switch 34, switch 1, switch 2 36, switch 3 37, open
4 38, switch 5 39 and switch 6 40 are closed, temperature controller 30 is connected with touching display screen 55, can adjust temperature by touching display screen 55
Control parameter.Switching 1 is used to control temperature controller, and switch 2 36 is used for control micro electric machine 41, and switch 3 37 is used for magnetic valve one
23 and the power on/off of magnetic valve 2 26, switch 4 38 is used to control fan 59, and switch 5 39 is used for control oil pump 42 and water pump 43, opened
Closing 6 40 is used to control temperature acquisition template 33.
Experiment starts front opening experiment chamber door 10, opens the coal-in port lid 2 of the top of coal sample tank 1, by connection oil sump 3 and oil sump
The flange 5 of lid 4 is opened.Conduction oil 6 is added into oil sump 3, can be shown in oil sump 3 by the liquid level tube 56 connected on oil sump 3
Then the liquid level of conduction oil 6, then add coal sample 7, coal by flange 5 and the good seal of oil sump 3 by oil sump lid 4 into coal sample tank 1
Sample 7 is located on support coal base 18, and the support coal base 18, which is welded in, to produce coal in lid 19.The coal-in port lid 2 is connected to
The coal-in port 8 of the upper end of coal sample tank 1, and temp probe 29 is placed in the center of coal sample 7, connect afterwards above the side wall of coal sample tank 1
Coal sample tank gas outlet 9, close experiment chamber door 10 and distribution box door 20 and check gas circuit seal.Open air switch 34 and switch
3 37, gas is passed through experimental provision in advance, after a period of time, switch 1, switch 2 36 and switch 6 40 is opened, starts
Temperature controller 30, micro machine 41 and temperature acquisition template 33.
Air-channel system in experimentation：Gas by gas cylinder 11 through pressure-reducing valve 12 and flowmeter 13, then through entering gas cutting ferrule 14, entering
Gas port 15, gas preheating pipeline 16 and coal sample tank air intake 17 enter the bottom of coal sample tank 1.Gas is after coal sample 7 by coal sample tank
Gas outlet 9 reaches threeway 21, wherein reaching magnetic valve 1 by gas-chromatography cutting ferrule 22 all the way, gas enters gas chromatograph
24, another road reaches magnetic valve 2 26 by outlet cutting ferrule 25, reconnects in emission-control equipment 27.The He of magnetic valve 1
Magnetic valve 2 26, which is connected under computer 28, the normal condition of magnetic valve 1, is in closure state, the magnetic valve 2 26
Open mode is under normal condition, gas enters emission-control equipment 27 by magnetic valve 2 26, then is discharged into air.Work as coal
Sample temperature is reached after assigned temperature, and the magnetic valve 1 is opened, and the magnetic valve 2 26 is closed, and gas passes through magnetic valve 1
Into gas chromatograph 24.After having enough gas injection gas chromatograph 24, the magnetic valve 1 is closed, the magnetic valve
2 26 open, and gas enters emission-control equipment 27 by magnetic valve 2 26.
Temperature control in experimentation：Temp probe 29 is located at the center of coal sample 7, and temperature signal is transmitted to temperature controller
30, the break-make of the control relay 31 of temperature controller 30, and relay 31 is connected with electrically heated rod 32, passes through control relay 31
Break-make control the switch of electrically heated rod 32, and then the temperature of conduction oil 6 in oil sump 3 is controlled, while micro machine 41 is by stirring
Mixing axle 57 drives stirring vane 58 to be stirred, and increases the temperature homogeneity of conduction oil 6.Temp probe 29 can also be by temperature signal
Transmit to temperature acquisition template 33, and temperature acquisition template 33 transmits temperature signal to computer 28, when reaching assigned temperature
Afterwards, computer 28 is by controlling magnetic valve 1 and magnetic valve 2 26 come automatic data collection gas sample, and is passed through in gas chromatograph 24.
The temperature controller 30 is connected with touching display screen 55, can adjust temperature-controlled parameter by touching display screen 55.
Heating terminates the cooling of rear coal sample and heat conduction oil temperature：Closing switch 1, stops electrically heated rod 32 to conduction oil 6
Heating, open oil sump valve 44 and Cistern valve 45, then open switch 5 39, start oil pump 42 and water pump 43, conduction oil 6 from
The oil leaking hole 46 of the bottom of oil sump 3 reaches oil pump 42 through oil sump valve 44 and oil pipe 47, enters oil through oil filler 48 by oil pipe 47
The liquid level of conduction oil 6 in oil sump 3 can be shown by being connected with liquid level tube 56 on pond 3, the oil sump 3.Water in water tank 49 is from water tank
Water outlet of water tank 50 on 49 reaches water pump 43 through Cistern valve 45, then enters through cooling tube water inlet 51 in cooling tube 52, it
Enter afterwards from cooling tube delivery port 53 through water tank water inlet 54 in water tank 49.The conduction oil 6 is in oil pipe 47 through cooling tube 52
Cool, so that the temperature of conduction oil 6 reduction in oil sump 3, and the coal sample 7 in coal sample tank 1 is in the heat conduction after cooling
Cooled in oil 6.Switch 4 38 can be closed, be opened in conduction oil 6 and coal sample tank 1 that fan 59 is accelerated in oil sump 3 simultaneously
Coal sample 3 cooling velocity.After the temperature of coal sample 7 and conduction oil 6 is down to normal temperature, closing switch four and switch 5 39 make wind
Fan 59, oil pump 42 and water pump 43 are stopped, and turn off oil sump valve 44 and Cistern valve 45.
After the completion of experiment, pressure-reducing valve 12, switch 2 36, switch 3 37 and switch 4 38 are closed, stops supply, and stop
The work of micro machine 41 and temperature acquisition template 33, closes air switch 34 afterwards.Opening is produced coal lid 19 so that coal sample 7 transfer to
In coal sample case 60, and laboratory treatment is transported, cleaning coal sample tank 1 closes coal-in port lid 2 and lid 19 of producing coal, terminates experiment.
Claims (7)
1. a kind of coal spontaneous combustion tester, it is characterised in that：Including coal sample tank, oil piping system, temperature control system and air-channel system, institute
State coal sample tank upper and lower end portion and be respectively arranged with coal-in port and coal outlet, coal-in port and be set into coal lid, set out on coal outlet
Coal lid；The oil piping system includes oil sump, oil pump and the oil circuit for constituting closed loop, and the oil sump is coated on coal sample tank
It is connected respectively with coal sample pot sidewall at the top and bottom of periphery, oil sump；The temperature control system includes temp probe, temperature controller, electricity and added
Hot pin, temperature acquisition template, computer, the temp probe are arranged inside surveyed coal sample and are connected with temperature controller, the temperature
Control instrument is connected with electrically heated rod, and electrically heated rod is located in oil sump, and the temp probe is also connected with temperature acquisition template, and temperature is adopted
Collection template is connected with computer；The air-channel system includes gas cylinder, gas cylinder and preheats pipeline connection by gas with the coal sample tank,
The gas preheating pipeline is located in oil sump, and the coal sample tank is also connected with gas chromatograph, and gas chromatograph passes through the meter
Calculation machine is controlled.
2. a kind of coal spontaneous combustion tester according to claim 1, it is characterised in that：Also include cooling system, the cooling
System includes cooling tube, and cooling tube is arranged on the oil circuit.
3. a kind of coal spontaneous combustion tester according to claim 2, it is characterised in that：Also include emission-control equipment, it is described
Coal sample tank is also connected with the emission-control equipment, and emission-control equipment is controlled by the computer.
4. a kind of coal spontaneous combustion tester according to claim 3, it is characterised in that：Set between the gas cylinder and coal sample tank
There are pressure-reducing valve and flowmeter.
5. a kind of coal spontaneous combustion tester according to claim 4, it is characterised in that：The coal outlet, which is covered, is provided with support coal
Base.
6. a kind of coal spontaneous combustion tester according to claim 5, it is characterised in that：Agitator is provided with the oil sump,
The agitator is stretched into oil sump.
7. a kind of coal spontaneous combustion tester according to claim 6, it is characterised in that：Oil sump side wall is provided with liquid level
Pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710257953.XA CN106990219B (en) | 2017-04-19 | 2017-04-19 | A kind of coal spontaneous combustion tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710257953.XA CN106990219B (en) | 2017-04-19 | 2017-04-19 | A kind of coal spontaneous combustion tester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106990219A true CN106990219A (en) | 2017-07-28 |
| CN106990219B CN106990219B (en) | 2019-12-03 |
Family
ID=59416391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710257953.XA Expired - Fee Related CN106990219B (en) | 2017-04-19 | 2017-04-19 | A kind of coal spontaneous combustion tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106990219B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108896611A (en) * | 2018-08-23 | 2018-11-27 | 中原工学院 | Determining coal ignitability device and measuring method |
| AU2022202274B1 (en) * | 2021-12-14 | 2023-05-04 | Shenyang Research Institute of China Coal Technology & Engineering Group | Apparatus and method for measuring shortest spontaneous combustion period of coal |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954647A (en) * | 2014-05-05 | 2014-07-30 | 西安科技大学 | Performance test device of fire preventing and extinguishing hot rod for coal spontaneous combustion |
| CN205643334U (en) * | 2016-05-20 | 2016-10-12 | 河南理工大学 | Coal ignition quality survey device based on heat is heavy |
-
2017
- 2017-04-19 CN CN201710257953.XA patent/CN106990219B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954647A (en) * | 2014-05-05 | 2014-07-30 | 西安科技大学 | Performance test device of fire preventing and extinguishing hot rod for coal spontaneous combustion |
| CN205643334U (en) * | 2016-05-20 | 2016-10-12 | 河南理工大学 | Coal ignition quality survey device based on heat is heavy |
Non-Patent Citations (1)
| Title |
|---|
| 张玉涛等: "煤炭自燃灾变过程突变特性研究", 《中国安全科学学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108896611A (en) * | 2018-08-23 | 2018-11-27 | 中原工学院 | Determining coal ignitability device and measuring method |
| AU2022202274B1 (en) * | 2021-12-14 | 2023-05-04 | Shenyang Research Institute of China Coal Technology & Engineering Group | Apparatus and method for measuring shortest spontaneous combustion period of coal |
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| Publication number | Publication date |
|---|---|
| CN106990219B (en) | 2019-12-03 |
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