CN110346409A - A kind of method and device carrying out calorific value of coal analysis using high-temperature plasma - Google Patents
A kind of method and device carrying out calorific value of coal analysis using high-temperature plasma Download PDFInfo
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- CN110346409A CN110346409A CN201910706315.0A CN201910706315A CN110346409A CN 110346409 A CN110346409 A CN 110346409A CN 201910706315 A CN201910706315 A CN 201910706315A CN 110346409 A CN110346409 A CN 110346409A
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- coal
- calorific value
- analysis
- temperature plasma
- coal dust
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- 239000003245 coal Substances 0.000 title claims abstract description 33
- 238000004458 analytical method Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title claims abstract description 14
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000002817 coal dust Substances 0.000 claims abstract description 15
- 238000005259 measurement Methods 0.000 claims abstract description 15
- UBAZGMLMVVQSCD-UHFFFAOYSA-N carbon dioxide;molecular oxygen Chemical compound O=O.O=C=O UBAZGMLMVVQSCD-UHFFFAOYSA-N 0.000 claims abstract description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000003546 flue gas Substances 0.000 claims abstract description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 18
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 5
- 239000005864 Sulphur Substances 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 239000001569 carbon dioxide Substances 0.000 claims description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims description 5
- 239000001257 hydrogen Substances 0.000 claims description 5
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 13
- 238000007599 discharging Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000000691 measurement method Methods 0.000 abstract 1
- 239000000498 cooling water Substances 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 230000006698 induction Effects 0.000 description 4
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009616 inductively coupled plasma Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000608 laser ablation Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
- G01N25/22—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures
-
- 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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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The invention belongs to coal proximate analysis fields, and devise a kind of method for carrying out calorific value of coal analysis using high-temperature plasma: torch pipe issues plasma torch, and micro coal dust is continuously sprayed into plasma torch；Coal dust conflagration at high temperature can then calculate coal dust calorific value by the variable quantity and coal input quantity of oxygen, carbon dioxide and sulfur dioxide in measurement flue gas.The invention also discloses the measuring devices of the above-mentioned measurement method of application.Measuring device is made of the pertinent instruments of the torch pipe of maintenance gas stable discharging, mass flowmenter and measurement oxygen, carbon dioxide and sulfur dioxide.A kind of method carrying out calorific value of coal analysis using high-temperature plasma proposed by the present invention, can carry out calorific value of coal analysis effectively in real time.
Description
Technical field
The invention belongs to coal proximate analysis fields, and in particular to a kind of to carry out calorific value of coal point using high-temperature plasma
The method and device of analysis.
Background technique
The method for generating plasma mainly has: gas discharge regimes, laser ablation methods, combustion method, shock wave side
Method and the particle beams or ray method, wherein gas discharge regimes are the most commonly used.The principle of inductively coupled plasma technology: it to be formed
Stable ICP torch, should be there are three condition: electromagnetic field of high frequency, working gas and the torch pipe that can maintain gas stable discharging.?
The top loop of pipe is around a water-cooled induction coil, and when radio-frequency generator power supply, coil axis generates intense oscillations on direction
Magnetic field.Ionize the working gas of intermediate flow with the methods of high-frequency spark, the ion and electronics of generation again with induction coil
Generated fluctuating magnetic fields, this interaction flow ion and electronics in coil along closed loop；They are to this
The resistance of one movement then causes Ohmic heating to act on.Due to the high temperature that powerful electric current generates, heat gas, to form fire
The plasma of torch shape.
The carbon containing C of institute, hydrogen H in coal2, sulphur S burn in air heat formula difference it is as follows:
(1) carbon C completely burned:
CCoal+ O2 → CO2 + 34040 J/g(C)(1)
CCoal+ O2 → CO2 + 408480 J/mol(C)(2)
34040 J/g in aforesaid equation (1)(C)Indicate the heat that every gram of C burning issues；(2) 408480 J/mol in(C)Table
Show the heat that every mole of carbon C burning issues.
(2) hydrogen H2Burning:
2H2 coals+ O2 → 2H2O + 143000 J/g(H2)(3)
2H2 coals+ O2 → 2H2O + 286000 J/mol(H2)(4)
143000 J/g in aforesaid equation (3)(H2)Indicate every gram of H2Burn the heat issued；(4) 286000 J/mol in(H2)
Indicate every mol of hydrogen H2Burn the heat issued.
(3) sulphur S burns in furnace:
SCoal+ O2 → SO2 + 9130 J/g(S)(5)
SCoal+ O2 → SO2 + 292712 J/mol(S)(6)
9130 J/g indicate the heat that every gram of S burning issues in aforesaid equation (5), and 292712 J/mol expression often rubs in (6)
The heat that your sulphur S burning issues.
Summary of the invention
A kind of method and device being carried out calorific value of coal analysis using high-temperature plasma provided by the invention, generates heat to coal
Amount measures.
The first purpose of the invention is to provide a kind of sides that calorific value of coal analytical calculation is carried out using high-temperature plasma
Method.Torch pipe issues plasma torch, and micro coal dust is continuously sprayed into plasma torch；Coal dust conflagration at high temperature is led to
The variable quantity and coal input quantity for crossing oxygen, carbon dioxide and sulfur dioxide in measurement flue gas, then can calculate coal dust calorific value.Specifically
Method is as follows:
Coal dust firing, product are respectively carbon dioxide CO2, sulfur dioxide SO2 With water H2O etc..It is measured in flue, respectively
Amount of oxygen M is consumed to burningO2(mol), carbon dioxide content value MCO2(mol), content of sulfur dioxide MSO2(mol).
Under standard condition, by equation:
CCoal+ O2 → CO2 + 408480 J/mol(C)(1)
It can obtain: participate in the C content M of burningCIt indicates: MC = MCO2, C burning consumption O2Content MO2(C)It indicates: MO2(C)=
MCO2。
Under standard condition, by equation:
SCoal+ O2 → SO2 + 292712 J/mol(S)(2)
It can obtain: participate in the S content of burning: MS = MSO2, S burning consumption O2Content MO2(S)It indicates: MO2(S)= MSO2。
By H can must be participated in above2The oxygen amount M of burningO2(H2)It indicates:
MO2(H2)= MO2 - MO2(C)- MO2(S)
= MO2 – MCO2 - MSO2 (3)
Under standard condition, by equation:
2H2 coals+ O2 → 2H2O + 286000 J/mol(H2)(4)
It can obtain: participate in the H of burning2Content MH2It indicates:
MH2= 2MO2(H2)=2(MO2 – MCO2 - MSO2) (5)
Then burning of coal calorific value Q are as follows:
Q = 408480 * MC + 286000 * MH2 + 292712 * MS
= 408480 * MCO2 + 572000 * (MO2 – MCO2 - MSO2)+292712 * MSO2
= 572000 * MO2 - 163520* MCO2 - 279288 * MSO2
=163520 * (3.498 * MO2 - MCO2 -1.708 * MSO2) (6)
The case where variable quantity and coal input quantity of oxygen, carbon dioxide and sulfur dioxide in knowing flue gas are shown by formula (6)
Under, so that it may calculate coal dust firing calorific value.
A second object of the present invention is to provide a kind of dresses that calorific value of coal analytical calculation is carried out using high-temperature plasma
It sets.Measuring device by the torch pipe of maintenance gas stable discharging, mass flowmenter and measurement oxygen, carbon dioxide, sulfur dioxide and
Temperature, pressure, flow velocity pertinent instruments composition.Measuring device includes micro-measurement feeding device 1, quantitative measurment feed situation
Mass flowmenter 2, quantitative measurment input auxiliary gas mass flowmenter 3 and quantitative measurment input cooling air mass flowmenter 4,
The circular water-cooled induction coil 10 in torch pipe 5, torch pipe periphery, the high frequency electric source 6 and cooling water pump 7, cooling water pump being connected with coil
Water inlet pipe connection testing temperature device 8 connect with cooling water pump outlet pipe testing temperature device 9, coal analysis measuring device outlet company
Oxygen measuring apparatus 11, the measurement SO connect2 Device 12, the measurement CO of content2The device 13 of content.
Plasma torch is formed in torch pipe, and micro coal dust is continuously sprayed into flame passes via micro-measurement feeding device 1
In torch, coal dust conflagration at high temperature measures oxygen content variation by the oxygen measuring apparatus 11 in exit, in conjunction with micro-measurement into
Expect the coal input quantity and measurement CO that device 1 measures2The device 13 and measurement SO of content2 The device 12 of content measures obtained product
Sulfur dioxide, carbon dioxide equal size；Utilize contained substance carbon C, hydrogen H in coal2, burn under sulphur S standard condition in air
Heat formula, then can calculate coal dust calorific value.
Detailed description of the invention
Fig. 1 is a kind of measuring device that calorific value of coal analysis is carried out using plasma.
Specific embodiment
Measuring device includes micro-measurement feeding device 1, the mass flowmenter 2 of quantitative measurment feed situation, quantitative measurment
The mass flowmenter 3 and the mass flowmenter 4 of quantitative measurment input cooling air of input auxiliary gas, torch pipe 5, torch pipe periphery are circular
The testing temperature that water-cooled induction coil 10, the high frequency electric source 6 being connected with coil and cooling water pump 7, cooling water pump water inlet pipe are connect fills
Set 8 connected with cooling water pump outlet pipe testing temperature device 9, coal analysis measuring device outlet connection oxygen measuring apparatus 11, measurement SO2
Device 12, the measurement CO of content2The device 13 of content.
Wherein, the mass flowmenter 4 of quantitative measurment input cooling air inputs cooling air, is used to form plasma, cooling
Protect tube wall；The input auxiliary gas of mass flowmenter 3 of quantitative measurment input auxiliary gas, forms plasma for assisting, protects
Middle pipe；The mass flowmenter 2 that quantitative measurment is fed situation inputs atomization gas, is used for atomized sample, protects central tube.
Claims (2)
1. a kind of method for carrying out calorific value of coal analysis using high-temperature plasma, it is characterized in that: coal dust conflagration, passes through survey
The variable quantity and coal input quantity for measuring oxygen, carbon dioxide and sulfur dioxide in flue gas, according to contained substance carbon C, hydrogen H in coal2、
The heat formula to burn in air under sulphur S standard condition calculates coal dust calorific value.
2. a kind of measuring device for carrying out calorific value of coal analysis using high-temperature plasma according to claim 1, special
Sign is: high-temperature plasma torch, coal dust conflagration at high temperature are formed in the torch pipe；It is surveyed by the oxygen measuring apparatus in exit
Measure oxygen content variation, in conjunction with coal input quantity and measurement sulfur dioxide, carbon dioxide etc. device measure product sulfur dioxide,
Carbon dioxide equal size calculates coal dust calorific value.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910706315.0A CN110346409A (en) | 2019-08-01 | 2019-08-01 | A kind of method and device carrying out calorific value of coal analysis using high-temperature plasma |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910706315.0A CN110346409A (en) | 2019-08-01 | 2019-08-01 | A kind of method and device carrying out calorific value of coal analysis using high-temperature plasma |
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| CN110346409A true CN110346409A (en) | 2019-10-18 |
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|---|---|---|---|---|
| US4181504A (en) * | 1975-12-30 | 1980-01-01 | Technology Application Services Corp. | Method for the gasification of carbonaceous matter by plasma arc pyrolysis |
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-
2019
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Patent Citations (12)
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|---|---|---|---|---|
| US4181504A (en) * | 1975-12-30 | 1980-01-01 | Technology Application Services Corp. | Method for the gasification of carbonaceous matter by plasma arc pyrolysis |
| US4586443A (en) * | 1977-09-27 | 1986-05-06 | Trw Inc. | Method and apparatus for in-flight combustion of carbonaceous fuels |
| US4809190A (en) * | 1987-04-08 | 1989-02-28 | General Signal Corporation | Calorimetry system |
| CN1603833A (en) * | 2004-02-27 | 2005-04-06 | 王玷 | Optimizing control system for large-scale pulverized coal furnace |
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| US20090260288A1 (en) * | 2008-04-21 | 2009-10-22 | De Graffenried Sr Christopher | Manufacture of gas from hydrogen-bearing starting materials. |
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| CN109072102A (en) * | 2016-02-23 | 2018-12-21 | 明特克公司 | coal gasification |
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