CN101430315A - Test method used for detecting coking coal - Google Patents
Test method used for detecting coking coal Download PDFInfo
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- CN101430315A CN101430315A CNA2008102366604A CN200810236660A CN101430315A CN 101430315 A CN101430315 A CN 101430315A CN A2008102366604 A CNA2008102366604 A CN A2008102366604A CN 200810236660 A CN200810236660 A CN 200810236660A CN 101430315 A CN101430315 A CN 101430315A
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- semicoke
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Abstract
The invention relates to a test method for detecting caking coal. The method comprises the following steps: (1). A coal is burned into a semi-coking cake by using a gelatinous layer measuring instrument; (2). the semi-coking cake is detected; (3). the semi-coking cake is burned into coke by a muffle; and (4). the coke is detected. In the invention, no coke oven test is needed, the coke is burned from the semi-coking cake necessary for the test instead of the coal. The method has low energy consumption, simple testing devices, low working staff consumption and small device investment, can satisfy the fast changing need of laboratory research and has high test efficiency.
Description
Technical field
The present invention relates to the test method of laboratory coking, be used to detect the test method of coking coal.
Background technology
Be used to detect the test method of coking coal, as the main method of the coking character of estimating coking coal, selection coal for coking and prediction coke quality.The test method that is used to detect coking coal generally comprises: the test procedure that is used to detect the test procedure of semicoke charge of coke and is used to detect coke.
At present, the test procedure that is used to detect the semicoke charge of coke comprises: 1, with the plastometer indices analyzer coal is fired into semicoke charge of coke step; 2, the step that the semicoke charge of coke is detected.The test procedure that is used to detect coke comprises: 1, with testing coke oven coal is fired into the coke step; 2, the step that detects of STRENGTH ON COKE.
The existing test method that is used to detect coking coal, testing coke oven is necessary testing equipment, and the equipment of testing coke oven is huge, personnel attrition is bigger, equipment investment is big, and the energy consumption height can not satisfy quick and various laboratory study need of work, therefore, the existing test method efficient that is used to detect coking coal is low.
Summary of the invention
Technical matters to be solved by this invention is: a kind of test method that is used to detect coking coal is provided, and this test method need not testing coke oven.
The present invention solves the problems of the technologies described above the technical scheme that is adopted:
A kind of test method that is used to detect coking coal, it may further comprise the steps:
(1), with the gelatinous layer analyzer coal is fired into semicoke charge of coke step;
(2), the step that the semicoke charge of coke is detected;
(3), the semicoke charge of coke is fired into the coke step, be specially with muffle furnace:
(3.1), the semicoke charge of coke is put into corundum crucible;
(3.2), corundum crucible is sent into muffle furnace, muffle furnace is warming up to 1000～1200 ℃, is incubated 2～5 hours;
(3.3), take out corundum crucible, quenching to fire puts out fully, promptly makes coke;
(4), the step that detects of STRENGTH ON COKE.
In the such scheme, step (3.1) is specially:
At thick coke powder or the inert substance of corundum crucible bottom shop 3～5cm; The semicoke charge of coke is put into corundum crucible, cover and fill up corundum crucible with coke powder on the semicoke charge of coke, on the corundum crucible top, press lid.
In the such scheme, in the step (3.2), the heating rate of muffle furnace remains on 3-5 ℃/minute.
In the such scheme, the thickness that covers coke powder on the semicoke charge of coke is 1～2cm.
In the such scheme, step (3.3) is specially: take out corundum crucible, pour out the material in the corundum crucible, put out fully with water smoke interval quenching to fire, promptly make coke.
Compared with prior art, the present invention has the following advantages:
1, test method of the present invention need not testing coke oven, and coke is not to fire from coal to form, but fires and form from testing essential semicoke charge of coke, energy consumption is low, and testing equipment is simple, and personnel attrition is few, equipment investment is little, can satisfy quick and various laboratory study need of work, the test efficiency height.
2, at thick coke powder or the inert substance of corundum crucible bottom shop 3～5cm; The semicoke charge of coke is put into corundum crucible, cover with coke powder on the semicoke charge of coke and fill up corundum crucible, press lid, but secluding air and make heating process more even.
3, the heating rate of muffle furnace remains on 2～8 ℃/minute and can guarantee that heating process is identical with the effect of testing coke oven, improves the stability of coke.
4, the thickness of covering coke powder is 1～2cm on the semicoke charge of coke, can guarantee the effect of secluding air, and reducing the coke button oxidation may.
5, in the step (3.3), behind the taking-up corundum crucible, pour out the material in the corundum crucible, help quick quenching.
6, with water smoke quenching at interval, help quick quenching and can prevent that moisture is excessive.
Description of drawings
Fig. 1 is the synoptic diagram that is contained with the corundum crucible of semicoke charge of coke
Embodiment
The present invention is used to detect the test method embodiment 1 of coking coal:
Major equipment and requirement:
Plastometer indices analyzer: coal property test equipment commonly used.
Corundum crucible: internal diameter 80mm; Height of least is not less than 40mm.
Muffle furnace: the highest steady temperature is not less than 1200 ℃.
The test method following steps:
(1), with the plastometer indices analyzer coal is fired into semicoke charge of coke step;
In 30 minutes, firing rate with about 8 ℃/min rises to 250 ℃ from room temperature, and the programming rate with 3 ℃/min evenly adds to 730 ℃ then, in wherein 350 ℃～600 ℃ processes, the difference of actual temperature and standard temperature should not surpass 5 ℃, At All Other Times can not be above 10 ℃.Plastic mass in the recording process changes.
(2), the step that the semicoke charge of coke is detected;
Range estimation semicoke charge of coke pattern, to surface crack, the limit situation of splitting is measured with chi, the record test figure.
(3), the semicoke charge of coke is fired into the coke step, be specially with muffle furnace:
(3.1), take out the semicoke charge of coke the coal cup behind the gelatinous layer determination test; As shown in Figure 1, at the thick coke powder 2 of corundum crucible 1 bottom shop 3～5cm; Semicoke charge of coke 3 is put into corundum crucible, cover with coke powder 2 on the semicoke charge of coke 3 and fill up corundum crucible 1, the thickness that covers coke powder 2 on the semicoke charge of coke 3 is 1～2cm, presses lid 4 on corundum crucible 1 top, and lid is that mullite brick is made.
(3.2), corundum crucible is sent into muffle furnace, setting the muffle furnace finishing temperature is 1100 ℃, and the intensification digit rate remains on 3-5 ℃/minute, is incubated 3 hours;
(3.3), take out corundum crucible, pour out the material in the corundum crucible, natural quenching to fire puts out fully, promptly makes coke.
(4), the step that detects of STRENGTH ON COKE.
Coke is immersed epoxy resin, behind overcuring, on wafer lapping machine, wear into mating plate, under the oil immersion polarizing microscope, observe the coke microstructure.
The present invention is used to detect the test method embodiment 2 of coking coal:
Major equipment and requirement are with embodiment 1.
The test method following steps:
(1), with the gelatinous layer analyzer coal is fired into semicoke charge of coke step;
(2), the step that the semicoke charge of coke is detected;
(3), the semicoke charge of coke is fired into the coke step, be specially with muffle furnace:
(3.1), take out the semicoke charge of coke the coal cup behind the gelatinous layer determination test; At the thick inert substance of corundum crucible bottom shop 3～5cm---emergy (also can be other high temperature resistant not fused mass); The semicoke charge of coke is put into corundum crucible, cover with coke powder on the semicoke charge of coke and fill up corundum crucible, the thickness that covers coke powder on the semicoke charge of coke is 1～2cm.
(3.2), corundum crucible is sent into muffle furnace, shut the muffle furnace door, secluding air as far as possible, setting the muffle furnace finishing temperature is 1100 ℃, the intensification digit rate remains on 3～5 ℃/minute, is incubated 5 hours;
(3.3), take out corundum crucible, pour out the material in the corundum crucible, with water smoke at interval quenching to fire put out fully, promptly make coke.
(4), the step that detects of STRENGTH ON COKE.
Claims (5)
1, a kind of test method that is used to detect coking coal, it may further comprise the steps:
(1), with the gelatinous layer analyzer coal is fired into semicoke charge of coke step;
(2), the step that the semicoke charge of coke is detected;
(3), the semicoke charge of coke is fired into the coke step, be specially with muffle furnace:
(3.1), the semicoke charge of coke is put into corundum crucible;
(3.2), corundum crucible is sent into muffle furnace, muffle furnace is warming up to 1000～1200 ℃, is incubated 2～5 hours;
(3.3), take out corundum crucible, quenching to fire puts out fully, promptly makes coke;
(4), the step that detects of STRENGTH ON COKE.
2, test method as claimed in claim 1 is characterized in that: step (3.1) is specially:
At thick coke powder or the inert substance of corundum crucible bottom shop 3～5cm; The semicoke charge of coke is put into corundum crucible, cover and fill up corundum crucible with coke powder on the semicoke charge of coke, on the corundum crucible top, press lid.
3, test method as claimed in claim 1 is characterized in that: in the step (3.2), the heating rate of muffle furnace remains on 3-5 ℃/minute.
4, test method as claimed in claim 2 is characterized in that: the thickness that covers coke powder on the semicoke charge of coke is 1～2cm.
5, test method as claimed in claim 1 is characterized in that: step (3.3) is specially: take out corundum crucible, pour out the material in the corundum crucible, put out fully with water smoke interval quenching to fire, promptly make coke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2008102366604A CN101430315B (en) | 2008-12-05 | 2008-12-05 | Test method used for detecting coking coal |
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| CN2008102366604A CN101430315B (en) | 2008-12-05 | 2008-12-05 | Test method used for detecting coking coal |
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| CN101430315A true CN101430315A (en) | 2009-05-13 |
| CN101430315B CN101430315B (en) | 2012-07-25 |
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| CN2008102366604A Expired - Fee Related CN101430315B (en) | 2008-12-05 | 2008-12-05 | Test method used for detecting coking coal |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487305A (en) * | 2013-10-10 | 2014-01-01 | 辽宁同辉科技发展有限公司 | Coke reactivity and post-reaction intensity detection sample preparation apparatus and sample preparation method |
| CN103983486A (en) * | 2014-03-26 | 2014-08-13 | 江苏省沙钢钢铁研究院有限公司 | Apparatus and method of preparing micro coked sample for coke microstructure determination |
| CN107860680A (en) * | 2017-12-19 | 2018-03-30 | 武汉钢铁有限公司 | A kind of blast-furnace tuyere Jiao granularmetric composition and the analysis method of slag hold-up |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1096581A1 (en) * | 1980-01-14 | 1984-06-07 | Восточный научно-исследовательский углехимический институт | Method of evaluating coking capacity of coal charge for carbonizytion |
| JPS5822940A (en) * | 1981-08-03 | 1983-02-10 | Mitsubishi Chem Ind Ltd | Method and apparatus for analyzing structure of coal |
| CN2144293Y (en) * | 1992-08-20 | 1993-10-20 | 马鞍山钢铁公司 | Automatic detector for gum layer of soft coal |
| JP2001324460A (en) * | 2000-05-12 | 2001-11-22 | Nippon Steel Corp | Quality evaluation method for coal |
| KR100503348B1 (en) * | 2000-08-24 | 2005-07-26 | 재단법인 포항산업과학연구원 | Method of characterizing coking coal |
| CN1514226A (en) * | 2003-07-11 | 2004-07-21 | 罗华东 | Coal quality industrial analysis non continuous determination method and its analysis instrument |
| CN2727718Y (en) * | 2004-04-30 | 2005-09-21 | 武汉钢铁(集团)公司 | Furnace for testing reactivity and heat intensity after reaction of coke |
| CN101294948B (en) * | 2008-06-20 | 2012-07-04 | 武汉钢铁(集团)公司 | Method for anthracology coal blending |
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- 2008-12-05 CN CN2008102366604A patent/CN101430315B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487305A (en) * | 2013-10-10 | 2014-01-01 | 辽宁同辉科技发展有限公司 | Coke reactivity and post-reaction intensity detection sample preparation apparatus and sample preparation method |
| CN103487305B (en) * | 2013-10-10 | 2015-12-02 | 辽宁同辉科技发展有限公司 | The equipment of a kind of coke reactivity and post-reaction strength test samples and preparation method |
| CN103983486A (en) * | 2014-03-26 | 2014-08-13 | 江苏省沙钢钢铁研究院有限公司 | Apparatus and method of preparing micro coked sample for coke microstructure determination |
| CN103983486B (en) * | 2014-03-26 | 2017-03-08 | 江苏省沙钢钢铁研究院有限公司 | A kind of micro- coking sample preparation device for coke microscopic structure mensure and method |
| CN107860680A (en) * | 2017-12-19 | 2018-03-30 | 武汉钢铁有限公司 | A kind of blast-furnace tuyere Jiao granularmetric composition and the analysis method of slag hold-up |
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| CN101430315B (en) | 2012-07-25 |
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