CN106990219B - A kind of coal spontaneous combustion tester - Google Patents
A kind of coal spontaneous combustion tester Download PDFInfo
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- CN106990219B CN106990219B CN201710257953.XA CN201710257953A CN106990219B CN 106990219 B CN106990219 B CN 106990219B CN 201710257953 A CN201710257953 A CN 201710257953A CN 106990219 B CN106990219 B CN 106990219B
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- coal
- coal sample
- oil
- oil sump
- sample tank
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- 239000003245 coal Substances 0.000 title claims abstract description 128
- 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 99
- 238000001816 cooling Methods 0.000 claims description 24
- 239000007788 liquid Substances 0.000 claims description 8
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 6
- 238000005485 electric heating Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 24
- 238000005520 cutting process Methods 0.000 description 9
- 238000009826 distribution Methods 0.000 description 8
- 238000002474 experimental method Methods 0.000 description 6
- 238000003756 stirring Methods 0.000 description 5
- 238000004817 gas chromatography Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000945 filler Substances 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
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression 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
- 238000005457 optimization Methods 0.000 description 1
- 238000001073 sample cooling Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012360 testing method Methods 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
Landscapes
- 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 problem of the present invention relates to a kind of coal spontaneous combustion testers, and big with oil mass in the prior art to solve, heating speed is slow, and temperature is not easy to control, coal sample uneven heating.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 on coal sample tank periphery, is connected respectively with coal sample pot sidewall at the top and bottom of oil sump；Temperature control system includes temp probe, temperature controller, electrically heated rod, temperature acquisition template, computer, temp probe is set to inside surveyed coal sample and connect with temperature controller, temperature controller is connect with electrically heated rod, electrically heated rod is located in oil sump, temp probe is also connect with temperature acquisition template, and temperature acquisition template is connect with computer；Air-channel system includes gas cylinder, gas cylinder and coal sample tank by gas preheating pipeline connection, and gas preheating pipeline is located in oil sump, and coal sample tank is also connected to gas chromatograph, and gas chromatograph passes through computer and controls.
Description
Technical field
The invention belongs to coal performance test fields, and in particular to a kind of coal spontaneous combustion tester.
Background technique
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 placed among oil sump and is heated, therefore it is big with oil mass, and heating speed is slow, this also results in its conduction oil and coal sample temperature
Degree is not easy to control, and coal sample uneven heating, 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.
Summary of the invention
The object of the present invention is to provide a kind of coal spontaneous combustion testers, big with oil mass in the prior art to solve, heating
The problem of speed is slow, and temperature is not easy to control, coal sample uneven heating.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
A kind of coal spontaneous combustion tester, 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 are respectively arranged with coal-in port and coal outlet, coal lid, coal outlet are set on coal-in port
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
In coal sample tank periphery, it is connected respectively with coal sample pot sidewall at the top and bottom of oil sump；The temperature control system includes temp probe, temperature control
Instrument, electrically heated rod, temperature acquisition template, computer, the temp probe are set to inside surveyed coal sample and connect with temperature controller,
The temperature controller is connect with electrically heated rod, and electrically heated rod is located in oil sump, and the temp probe is also connect with temperature acquisition template,
Temperature acquisition template is connect with computer；The air-channel system includes that gas cylinder, gas cylinder and the coal sample tank pass through gas economizer bank
Road connection, the gas preheating pipeline are located in oil sump, and the coal sample tank is also connected to gas chromatograph, and gas chromatograph passes through
The computer control.
It further, further include cooling system, the cooling system includes cooling tube, and cooling tube is arranged in the oil circuit
On.
It further, further include emission-control equipment, the coal sample tank is also connected to the emission-control equipment, at exhaust gas
Reason device is controlled by the computer.
Further, it is arranged between the gas cylinder and coal sample tank by pressure reducing valve and flowmeter.
Further, the coal outlet, which covers, is provided with support coal pedestal.
Further, blender is provided on the oil sump, the blender protrudes into oil sump.
Further, the oil sump side wall is provided with liquid level tube.
The beneficial effect of the present invention compared with the existing technology is:
Coal sample tank and oil sump are used whole design by the present invention, not only reduce coal sample dosage and conduction oil dosage, are improved
Heating speed, is uniformly heated coal sample, and coal sample tank coal-in port and coal outlet are designed at except oil sump, simplifies
Dress takes the operating process of coal sample, cooling rate is improved by increasing cooling system, while by optimization temperature control system, using line
Property heating method solve existing apparatus temperature disadvantage not easy to control.
Detailed description of the invention
Fig. 1 is example structure schematic diagram；
Fig. 2 is distribution box side view in embodiment；
Fig. 3 is experimental box and distribution box main view in experimental example；
Fig. 4 is blender position view in embodiment.
In figure: 1- coal sample tank, 2- coal-in port lid, 3- oil sump, 4- oil sump lid, 5- flange, 6- conduction oil, 7- coal sample, 8- enter
Coal mouth, 9- coal sample tank gas outlet, 10- experiment chamber door, 11- gas cylinder, 12- pressure reducing valve, 13- flowmeter, 14- enters gas cutting ferrule, 15- enters
Port, 16- gas preheating pipeline, 17- coal sample tank air intake, 18- support coal pedestal, 19- produce coal lid, 20- distribution box door, 21-
Threeway, 22- gas-chromatography cutting ferrule, 23- solenoid valve one, 24- gas chromatograph, 25- outlet cutting ferrule, 26- solenoid valve two, 27- are useless
Flash Gas Compression Skid System, 28- computer, 29- temp probe, 30- temperature controller, 31- relay, 32- electrically heated rod, 33- temperature acquisition
Template, 34- be spaced apart, 35- switch one, 36- switch two, 37- switch three, 38- switch four, 39- switch five, 40- switch six, 41-
Micro machine, 42- oil pump, 43- water pump, 44- oil sump valve, 45- Cistern valve, 46- oil leaking hole, 47- oil pipe, 48- oil filler,
49- water tank, 50- water outlet of water tank, 51- cooling tube water inlet, 52- cooling tube, 53- cooling tube water outlet, 54- water tank enter water
Mouth, 55- touching display screen, 56- liquid level tube, 57- agitating shaft, 58- stirring blade, 59- fan, 60- coal sample case.
Specific embodiment
The present invention is described in detail in the following with reference to the drawings and specific embodiments.
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.1 upper and lower end portion of coal sample tank is respectively arranged with coal-in port 8 and coal outlet, sets on coal-in port 8
It is placed in coal lid 2, lid 19 of producing coal is set on coal outlet；Oil piping system include constitute the oil sump 3 of closed loop, oil circuit and
Oil pump 42, oil sump 3 are coated on 1 periphery of coal sample tank, and 3 top and bottom of oil sump are connected with 1 side wall of coal sample tank respectively；Temperature control system packet
Temp probe 29, temperature controller 30, electrically heated rod 32, temperature acquisition template 33, computer 28 are included, temp probe 29, which is set to, to be surveyed
It is connect inside coal sample and with temperature controller 30, temperature controller 30 is connect with electrically heated rod 32, and electrically heated rod 32 is located in oil sump 3, temperature
Probe 29 is also connect with temperature acquisition template 33, and temperature acquisition template 33 is connect with computer 28；Air-channel system include gas cylinder 11,
Gas cylinder 11 and coal sample tank 1 preheat pipeline 16 by gas and be connected tos, and gas preheats pipeline 16 and is located in oil sump 3, coal sample tank 1 also with gas
Chromatograph 24 is connected to, 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.It further 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.
Support coal pedestal 18 is provided with above lid of producing coal 19.Blender is provided on oil sump 3, blender includes micro machine 41, agitating shaft
57 and stirring blade 58, agitating shaft 57 protrude into oil sump, micro machine 41 by agitating shaft 57 drive stirring blade 58 be stirred.
3 side wall of oil sump 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 in distribution box
Interior, temperature controller 30 controls the switch of electrically heated rod 32 by controlling the on-off of relay 31, and temp probe 29 can also be by temperature
Signal is transmitted to temperature acquisition template 33, and temperature signal is transmitted to computer 28 by temperature acquisition template 33, is set on distribution box
It is equipped with distribution box door 20, gas, through pressure reducing valve 12 and flowmeter 13, then is entered gas cutting ferrule 14, air intake 15, gas by gas cylinder 11
It preheats pipeline 16 and coal sample tank air intake 17 enters 1 bottom of coal sample tank.Gas is reached after coal sample 7 by coal sample tank gas outlet 9
Threeway 21, wherein reaching solenoid valve 1 by gas-chromatography cutting ferrule 22 all the way, gas enters gas chromatograph 24, and another way is logical
It crosses outlet cutting ferrule 25 and reaches solenoid valve 2 26, reconnect in emission-control equipment 27.Solenoid valve 1 and solenoid valve 2 26 connect
In being additionally provided with touching display screen 55 on computer 28, distribution box, be spaced apart 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.Switch 1 is used for control micro electric machine 41 for controlling temperature controller, switch 2 36, and switch 3 37 is used for solenoid valve one
23 and 2 26 power on/off of solenoid valve, switch 4 38 is opened for controlling fan 59, switch 5 39 for control oil pump 42 and water pump 43
6 40 are closed for controlling temperature acquisition template 33.
Experiment starts front opening and tests chamber door 10, opens the coal-in port lid 2 of 1 top of coal sample tank, 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
Oil sump lid 4 is then sealed by flange 5 with oil sump 3, coal sample 7, coal is then added into coal sample tank 1 by the liquid level of conduction oil 6
Sample 7 is located on support coal pedestal 18, and the support coal pedestal 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 1 upper end of coal sample tank, and temp probe 29 is placed at 7 center of coal sample, it is connected above 1 side wall of coal sample tank later
Coal sample tank gas outlet 9, close experiment chamber door 10 and distribution box door 20 and check gas circuit airtightness.Opening is spaced apart 34 and switch
3 37, gas is passed through experimental provision in advance, after a period of time, turns on the switch one 35, switch 2 36 and switch 6 40, is started
Temperature controller 30, micro machine 41 and temperature acquisition template 33.
Air-channel system in experimentation: gas, through pressure reducing valve 12 and flowmeter 13, then is entered gas cutting ferrule 14, is entered by gas cylinder 11
Port 15, gas preheating pipeline 16 and coal sample tank air intake 17 enter 1 bottom of coal sample tank.Gas is after coal sample 7 by coal sample tank
Gas outlet 9 reaches threeway 21, wherein reaching solenoid valve 1 by gas-chromatography cutting ferrule 22 all the way, gas enters gas chromatograph
24, another way reaches solenoid valve 2 26 by outlet cutting ferrule 25, reconnects in emission-control equipment 27.One 23 He of solenoid valve
Solenoid valve 2 26 is connected to computer 28, is in closed state, the solenoid valve 2 26 under one 23 normal condition of solenoid valve
In the open state under normal condition, gas enters emission-control equipment 27 by solenoid valve 2 26, then is discharged into atmosphere.Work as coal
After sample temperature reaches assigned temperature, the solenoid valve 1 is opened, and the solenoid valve 2 26 is closed, and gas passes through solenoid valve 1
Into gas chromatograph 24.After having enough gas injection gas chromatograph 24, the solenoid valve 1 is closed, the solenoid valve
2 26 open, and gas enters emission-control equipment 27 by solenoid valve 2 26.
Temperature control in experimentation: temp probe 29 is located at 7 center of coal sample, and temperature signal is transmitted to temperature controller
30, the temperature controller 30 controls the on-off of relay 31, and relay 31 is connected with electrically heated rod 32, by controlling relay 31
On-off control the switch of electrically heated rod 32, and then control the temperature of conduction oil 6 in oil sump 3, while micro machine 41 is by stirring
Mixing axis 57 drives stirring blade 58 to be stirred, and increases the temperature uniformity of conduction oil 6.Temp probe 29 can also be by temperature signal
It is transmitted to temperature acquisition template 33, and temperature signal is transmitted to computer 28 by temperature acquisition template 33, when reaching assigned temperature
Afterwards, computer 28 is by controlling solenoid valve 1 and solenoid valve 2 26 come automatic 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.
The cooling of coal sample and thermally conductive oil temperature after heating: turning off the switch 1, stops electrically heated rod 32 to conduction oil 6
Heating, open oil sump valve 44 and Cistern valve 45, then turn on the switch 5 39, start oil pump 42 and water pump 43, conduction oil 6 from
The oil leaking hole 46 of 3 bottom of oil sump reaches oil pump 42 through oil sump valve 44 and oil pipe 47, enters oil through oil filler 48 by oil pipe 47
Pond 3, the liquid level of conduction oil 6 in oil sump 3 can be shown by being connected with liquid level tube 56 on 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 in cooling tube 52 through cooling tube water inlet 51, it
Enter in water tank 49 from cooling tube water outlet 53 through water tank water inlet 54 afterwards.The conduction oil 6 is in oil pipe 47 through cooling tube 52
It cools, so that 6 temperature of conduction oil in oil sump 3 reduces, and the coal sample 7 in coal sample tank 1 is thermally conductive after cooling down
It cools in oil 6.Switch 4 38 can be closed, be opened in the 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 room temperature, four and switch 5 39 are turned off the switch, wind is made
Fan 59, oil pump 42 and water pump 43 stop working, 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 gas supply, and stop
The work of micro machine 41 and temperature acquisition template 33 closes be spaced apart 34 later.Opening is produced coal lid 19, so that the decentralization of coal sample 7 is extremely
In coal sample case 60, and laboratory treatment is transported, clear up coal sample tank 1, close 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
It states coal sample tank upper and lower end portion and is respectively arranged with coal-in port and coal outlet, coal lid is set on coal-in port, is provided on coal outlet
Coal lid；The oil piping system includes oil sump, oil pump and the oil circuit for constituting closed loop, and the coal sample tank and oil sump use
Overall structure, the oil sump are coated on coal sample tank periphery, are connected respectively with coal sample pot sidewall at the top and bottom of oil sump；The coal sample
Tank coal-in port and coal outlet are located at except oil sump；The temperature control system includes that temp probe, temperature controller, electrically heated rod, temperature are adopted
Collect template, computer, the temp probe is set to inside surveyed coal sample and connect with temperature controller, the temperature controller and electric heating
Stick connection, electrically heated rod are located in oil sump, and the temp probe is also connect with temperature acquisition template, temperature acquisition template and calculating
Machine connection；The air-channel system includes that gas cylinder, gas cylinder and the coal sample tank pass through gas preheating pipeline connection, the gas preheating
Pipeline is located in oil sump, and the coal sample tank is also connected to gas chromatograph, and gas chromatograph is controlled by the computer.
2. a kind of coal spontaneous combustion tester according to claim 1, it is characterised in that: it further 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: it further include emission-control equipment, it is described
Coal sample tank is also connected to 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: be arranged 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 covers, is provided with support coal
Pedestal.
6. a kind of coal spontaneous combustion tester according to claim 5, it is characterised in that: it is provided with blender on the oil sump,
The blender protrudes into oil sump.
7. a kind of coal spontaneous combustion tester according to claim 6, it is characterised in that: the 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 CN106990219A (en) | 2017-07-28 |
| CN106990219B true CN106990219B (en) | 2019-12-03 |
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ID=59416391
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| 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 |
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| Country | Link |
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| CN (1) | CN106990219B (en) |
Families Citing this family (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 |
| CN114397323B (en) * | 2021-12-14 | 2023-09-12 | 中煤科工集团沈阳研究院有限公司 | Device and method for measuring shortest natural ignition period of coal |
Family Cites Families (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 |
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2017
- 2017-04-19 CN CN201710257953.XA patent/CN106990219B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN106990219A (en) | 2017-07-28 |
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