CN104315537A - Coal sample electric arc igniting method - Google Patents
Coal sample electric arc igniting method Download PDFInfo
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- CN104315537A CN104315537A CN201410619884.9A CN201410619884A CN104315537A CN 104315537 A CN104315537 A CN 104315537A CN 201410619884 A CN201410619884 A CN 201410619884A CN 104315537 A CN104315537 A CN 104315537A
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- crucible
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Abstract
The invention discloses a coal sample electric arc igniting method, and the method comprises the steps as follows: putting the sample powder and igniting agent in the crucible of the sealed combustion chamber, pumping the combustion chamber into the vacuum state, guiding the oxygen into the crucible, removing the igniting electrode above the crucible, locating the lower end of the electrode in the crucible and above the sample, starting spark generating device to ignite the coal sample, detecting the igniting voltage V1 of the igniting electrode, when the igniting voltage V1 is greater than the preset voltage V0, closing the spark generating device and finishing igniting. The coal sample electric arc igniting method adopts the non-contact high frequency high voltage electric arc igniting mode, the operation is simple for burning the sample to be detected at high temperature, the igniting effect is good and the igniting process saves the energy and consumption.
Description
Technical field
The present invention relates to material analysis techniques field, particularly relate to a kind of coal sample arc ignition method.
Background technology
In field of coal mining, need that constituent content is carried out to sample and carry out determination and analysis, especially the sulfur content in sample, it is one of important indicator of the quality of evaluating material, simultaneously contained in these materials sulphur produces sulfurous gas through burning, one of its main component being atmosphere pollution, therefore, the analysis of the total sulphur content in material is in widespread attention.
Usually, adopt constant sulphur appliance to detect total sulphur content in coal, in testing process, sample combustion process is particularly important, and whether burning velocity, the sufficient combustion factor such as have a strong impact on late detection result, so that greatly affect the accuracy of detection of downstream constant sulphur appliance.
Summary of the invention
For solving the technical problem existed in background technology, the present invention proposes a kind of coal sample arc ignition method, and method is simple, rapidly and efficiently can ignite, not introduce other impurity in combustion, have the advantage of energy-saving consumption-reducing to sample.
A kind of coal sample arc ignition method that the present invention proposes, comprises the following steps: sample charging, vacuumizes, traveling electrode, passes into oxygen, starts to ignite, ignite end;
S1, sample charging: adopt sampling device sample powder and detonator to be put into the crucible of combustion chamber, be wherein provided with magnet below crucible;
S2, to vacuumize: adopt vacuum plant to vacuumize combustion chamber;
S3, traveling electrode: moved to by ignitor above crucible, make electrode lower end be positioned at crucible and be positioned at above sample;
S4, pass into oxygen: in crucible, pass into oxygen;
S5, start to ignite: start spark generator and ignite to coal sample, detect the ignitor supply V1 of ignitor simultaneously;
S6, end of igniting: when ignitor supply V1 is greater than predeterminated voltage V0, close spark generator, end of igniting.
Preferably, in S3, ignitor is tungsten electrode.
Preferably, in S3, electrode lower end is apart from sample 3-5mm.
Preferably, in S5, the ignitor supply of ignitor is 2000-3000V.
In the present invention, the coal sample arc ignition method proposed, comprise the following steps: crucible sample powder and detonator being put into closed chamber, then combustion chamber is vacuumized, oxygen is passed in crucible, ignitor is moved to above crucible, make electrode lower end be positioned at crucible and be positioned at above sample, start spark generator to ignite to coal sample, detect the ignitor supply V1 of ignitor simultaneously, when ignitor supply V1 is greater than predeterminated voltage V0, close spark generator, end of igniting.By the coal sample arc ignition method of above-mentioned optimal design, non-contact high-frequency high-voltage arc is adopted to ignite, simple to operate, test samples can be treated and carry out high temperature and ignite, ignite effective, ignition Process energy-saving consumption-reducing.
Accompanying drawing explanation
Fig. 1 is the flow chart of a kind of coal sample arc ignition method that the present invention proposes.
Fig. 2 is the structural representation of the tracking arc ignition stove of the method realizing Fig. 1.
Detailed description of the invention
As illustrated in fig. 1 and 2, Fig. 1 is the flow chart of a kind of coal sample arc ignition method that the present invention proposes, and Fig. 2 is the structural representation of the tracking arc ignition stove of the method realizing Fig. 1.
With reference to Fig. 1, the coal sample arc ignition method that the present invention proposes, comprises the following steps: sample charging, vacuumizes, passes into oxygen, traveling electrode, starts to ignite, ignite end;
S1, sample charging: adopt sampling device sample powder and detonator to be put into the crucible of combustion chamber, be wherein provided with magnet below crucible;
S2, to vacuumize: adopt vacuum plant to vacuumize combustion chamber;
S3, traveling electrode: moved to by tungsten electrode above crucible, make electrode lower end be positioned at crucible, and electrode lower end to be positioned at above sample and apart from sample 3-5mm;
S4, pass into oxygen: in crucible, pass into oxygen;
S5, start to ignite: start spark generator, tungsten electrode is ignited to coal sample with the ignitor supply of 2000-3000V, detects the ignitor supply V1 of ignitor simultaneously;
S6, end of igniting: when ignitor supply V1 is greater than predeterminated voltage V0, close spark generator, end of igniting.
In the present embodiment, the coal sample arc ignition method proposed, comprise the following steps: crucible sample powder and detonator being put into closed chamber, then combustion chamber is vacuumized, oxygen is passed in crucible, ignitor is moved to above crucible, make electrode lower end be positioned at crucible and be positioned at above sample, start spark generator to ignite to coal sample, detect the ignitor supply V1 of ignitor simultaneously, when ignitor supply V1 is greater than predeterminated voltage V0, close spark generator, end of igniting.By the coal sample arc ignition method of above-mentioned optimal design, non-contact high-frequency high-voltage arc is adopted to ignite, simple to operate, test samples can be treated and carry out high temperature and ignite, ignite effective, ignition Process energy-saving consumption-reducing.
Coal sample arc ignition method is described in detail below in conjunction with the tracking arc ignition stove shown in Fig. 2.
With reference to Fig. 2, the tracking arc ignition stove that the present embodiment proposes, comprising: spark generator, body of heater 1, burner 2, crucible 3, rubber reseting sleeve 4, tungsten electrode 5, electrode drive mechanism 6, lowering or hoisting gear 7;
The first cavity 11, first cavity 11 top be provided with in body of heater 1 for holding crucible 3 has opening, and body of heater 1 top is provided with the first hermetically-sealed construction 12 in the around openings of the first cavity 11;
Lowering or hoisting gear 7 is positioned at below body of heater 1, which is provided with earth brace 71, and lowering or hoisting gear 7 is for driving body of heater 1 lifting moving;
Burner 2 is positioned at above body of heater 1, burner 2 inside is provided with the second cavity 21, bottom second cavity 21, there is opening and be communicated with the first cavity 11, second cavity 21 top has the vertical through hole upwards extended, second cavity 21 sidewall is provided with waste gas outlet 22, bottom burner 2 the around openings of the second cavity 21 be provided with the second hermetically-sealed construction 23, second hermetically-sealed construction 23 can with the first hermetically-sealed construction 12 fitted seal;
Crucible 3 is positioned at the first cavity 11, its inside has the 3rd cavity 31 for holding combustion material from crucible 3 top to lower recess, crucible 3 outer wall is provided with the support portion 32 of outwardly convex, crucible 3 is supported on the opening part of the first cavity 11 by support portion 32, is provided with magnet 8 between bottom crucible 3 and the first cavity 11;
Electrode drive mechanism 6 is positioned at above burner 2, and it moves at vertical direction for driving tungsten electrode 5;
Rubber reseting sleeve 4 is between electrode drive mechanism 6 and burner 2, and be tightly connected with burner 2, rubber reseting sleeve inside has the 4th cavity, 4th cavity is provided with opening bottom rubber reseting sleeve and sidewall is provided with oxygen intake, 4th cavity is communicated with the vertical through hole of burner, and it for making electrode reset after electrode work;
One end of tungsten electrode 5 is connected with electrode tie rod 51, tungsten electrode 5 is connected with electrode drive mechanism 6 by electrode tie rod 51, tungsten electrode 5 to enter in the second cavity 21 away from one end of electrode tie rod 51 from vertical through hole and can be driven by electrode drive mechanism 6 and stretch in crucible 3, tungsten electrode 5 outside is provided with wireway 9, wireway 9 one end is near tungsten electrode 5 one end away from electrode tie rod 51, and the other end is sealedly connected on oxygen intake place by vertical through hole;
Spark generator is electrically connected with tungsten electrode 5, and it is for providing spark for tungsten electrode 5.
The coal sample arc ignition method of the present embodiment is treated test samples and is carried out in the process of igniting, first by lowering or hoisting gear 7, body of heater 1 is declined, sample to be detected and detonator are put into crucible 3, then body of heater 1 rises, being coordinated by the first hermetically-sealed construction 12 and the second sealing mechanism 23 makes body of heater 1 and burner 2 seal, then the first cavity and the second cavity are vacuumized, then electrode drive mechanism 6 drives tungsten electrode 5 to decline, tungsten electrode 5 is made to be positioned at crucible 3 and test coupon 3-5mm away from one end of electrode tie rod 51, then oxygen enters in crucible 3 by wireway 9 rapidly from oxygen intake, spark generator generates hf electric arc simultaneously, tungsten electrode with 2000-3000V detonator auxiliary under to ignite rapidly sample, detect the ignitor supply V1 of tungsten electrode simultaneously, when V1 is greater than predeterminated voltage V0, spark generator is closed, stop generating electric arc, tungsten electrode 5 rises and returns to original position under the effect of rubber reseting sleeve 4, to ignite end.
The above; be only the present invention's preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (4)
1. a coal sample arc ignition method, is characterized in that, comprises the following steps: sample charging, vacuumizes, passes into oxygen, traveling electrode, starts to ignite, ignite end;
S1, sample charging: adopt sampling device sample powder and detonator to be put into the crucible of combustion chamber, be wherein provided with magnet below crucible;
S2, to vacuumize: adopt vacuum plant to vacuumize combustion chamber;
S3, traveling electrode: moved to by ignitor above crucible, make electrode lower end be positioned at crucible and be positioned at above sample;
S4, pass into oxygen: in crucible, pass into oxygen;
S5, start to ignite: start spark generator, ignitor is ignited to the coal sample in crucible, detects the ignitor supply V1 of ignitor simultaneously;
S6, end of igniting: when ignitor supply V1 is greater than predeterminated voltage V0, close spark generator, end of igniting.
2. coal sample arc ignition method according to claim 1, is characterized in that, in S3, ignitor is tungsten electrode.
3. coal sample arc ignition method according to claim 1 and 2, is characterized in that, in S3, electrode lower end is apart from sample 3-5mm.
4. coal sample arc ignition method according to claim 1, is characterized in that, in S5, the ignitor supply of ignitor is 2000-3000V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410619884.9A CN104315537A (en) | 2014-11-06 | 2014-11-06 | Coal sample electric arc igniting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410619884.9A CN104315537A (en) | 2014-11-06 | 2014-11-06 | Coal sample electric arc igniting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104315537A true CN104315537A (en) | 2015-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410619884.9A Pending CN104315537A (en) | 2014-11-06 | 2014-11-06 | Coal sample electric arc igniting method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3818845A (en) * | 1970-12-21 | 1974-06-25 | Tokyo Ohka Kogyo Co Ltd | Low temperature plasma incinerator and method of stabilizing impedance therein |
| GB2298311A (en) * | 1995-02-27 | 1996-08-28 | Japan Smoking Articles Corpora | Piezoelectric device for generating a high voltage |
| CN2743771Y (en) * | 2004-10-11 | 2005-11-30 | 李泉 | Automatic tracking arc burning furnace for carbon and sulfur analyzer |
| CN203148911U (en) * | 2013-01-10 | 2013-08-21 | 德阳市科瑞仪器设备厂 | Electric arc combustion chamber |
| CN104155341A (en) * | 2014-08-08 | 2014-11-19 | 西北工业大学 | Boron powder combustion heat value testing device |
-
2014
- 2014-11-06 CN CN201410619884.9A patent/CN104315537A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3818845A (en) * | 1970-12-21 | 1974-06-25 | Tokyo Ohka Kogyo Co Ltd | Low temperature plasma incinerator and method of stabilizing impedance therein |
| GB2298311A (en) * | 1995-02-27 | 1996-08-28 | Japan Smoking Articles Corpora | Piezoelectric device for generating a high voltage |
| CN2743771Y (en) * | 2004-10-11 | 2005-11-30 | 李泉 | Automatic tracking arc burning furnace for carbon and sulfur analyzer |
| CN203148911U (en) * | 2013-01-10 | 2013-08-21 | 德阳市科瑞仪器设备厂 | Electric arc combustion chamber |
| CN104155341A (en) * | 2014-08-08 | 2014-11-19 | 西北工业大学 | Boron powder combustion heat value testing device |
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Effective date of registration: 20151127 Address after: The economic development zone of Longgang road and Yaohai road junction Qi Garden real District of Hefei City, Anhui province 230000 two B group 39 building 803 room Applicant after: HEFEI ZAIDE MACROMOLECULE MATERIAL CO., LTD. Address before: 230000 No. 45 West Chaohu Road, upper town, Feixi County, Anhui, Hefei Applicant before: HEFEI ZHUOYUE ANALYTICAL INSTRUMENTS CO., LTD. |
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Application publication date: 20150128 |