CN102928273A - Raw coal sample making method - Google Patents
Raw coal sample making method Download PDFInfo
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- CN102928273A CN102928273A CN2012104094600A CN201210409460A CN102928273A CN 102928273 A CN102928273 A CN 102928273A CN 2012104094600 A CN2012104094600 A CN 2012104094600A CN 201210409460 A CN201210409460 A CN 201210409460A CN 102928273 A CN102928273 A CN 102928273A
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Abstract
The invention discloses a raw coal sample making method. The raw coal sample making method comprises the following steps of: (1) firstly, placing an original coal block taken from a coal mine site in a box body, casting concrete into the box body to ensure that the concrete is full of all gaps between the original coal block and the box body; (2) after the concrete is completely hardened, sampling the coal block by using a drilling sampler; and (3) finally, grinding the drilled coal sample into a coal sample with a size required by an experiment, and placing the made original coal sample in a drying box for later use in the experiment. According to the invention, the effective raw coal sample making method is provided to increase the making success rate of the raw coal sample.
Description
Technical field
The present invention relates to a kind of raw coal coal sample method for making, mainly be applicable to the making of the used coal sample of laboratory experiment.
Background technology
In the process of in the past making the raw coal coal sample, what often adopt is to utilize the drill hole sampling machine directly to get the used cylindrical coal sample of experiment at the complete coal cinder of bulk.Owing to there are some original crack/crackles in the original coal cinder, with this method that drills through coal sample, coal sample just begins fracture before finishing drilling through, and success ratio is low, is difficult to the sampling effect that reaches desirable.Add original coal cinder shape irregularity, when directly drilling through, cause the coal cinder unbalance stress, also be easy to occur eccentric and cause taking a sample unsuccessfully.
Summary of the invention
The purpose of this invention is to provide a kind of effective raw coal coal sample method for making, to improve the success ratio of producing of raw coal coal sample.
For achieving the above object, the present invention adopts following technical scheme: a kind of raw coal coal sample method for making, comprise the steps: that (one) will fetch the original coal cinder that comes from colliery scene first and place in the casing, then build with concrete, make concrete be full of all spaces between original coal cinder and the casing; (2) allow concrete harden fully after, utilize the drill hole sampling machine that coal cinder is taken a sample; The coal sample that (three) will drill through out at last is polished into the coal sample of experiment required size, and the raw coal coal sample of making is placed the usefulness of preparing against experiment in the drying box.
Original coal cinder in the described step () is used first the packaging film good seal, then place in the casing and build, concrete be wrapped in packaging film up and down and the border.
Described concrete is thin orthopaedics material concrete.
Described packaging film is plastic foil.
Described casing is wooden case.
In the described step (three), the coal sample in drilling through is by the polishing of Double End grinding stone machine.
Raw coal coal sample method for making of the present invention, owing in sampling, increased the concreting link, effectively stop the coal cinder underbead crack the further expanding of drilling operation, also increased coal cinder stability in drilling operation simultaneously, improved the efficient of producing of raw coal coal sample.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
By raw coal coal sample method for making shown in Figure 1, it is characterized in that: comprise the steps: that (one) will fetch original coal cinder 1 usefulness packaging film 5 good seals that come from colliery scene first and be placed in the suitable casing 2 of size, casing 2 is wooden case, packaging film 5 is plastic foil, should guarantee that packaging film 5 is interior without bubble, then build with thin orthopaedics material concrete 3, make concrete 3 be full of all spaces between packaging film 5 and the casing 2, like this, concrete 3 be wrapped in densely packaging film 5 up and down and the border, original coal cinder 1 is wrapped in the packaging film 5, also be that concrete 3 is full of all spaces between original coal cinder 1 and the casing 2, (2) solidify 1～2 day time, after allowing concrete 3 harden fully, just casing 2 can be placed the getting on the core platform of drill hole sampling machine 4, utilize 4 pairs of original coal cinders 1 of drill hole sampling machine to take a sample, the cylindric coal sample that (three) will drill through out at last is polished into the coal sample of experiment required size by Double End grinding stone machine, for example: the standard sample of Φ 50 * 100mm, and the coal sample of making placed in the drying box usefulness in order to experiment.The structure of drill hole sampling machine 4 and using method thereof are prior art, so be not described in detail.
Because having increased concrete 3 in sampling builds link, drill hole sampling machine 4 is in sampling process, injection original coal cinder about in the of 1 and concrete 3 all around effectively stoped original coal cinder 1 underbead crack further expanding at drilling operation, also increased simultaneously original coal cinder 1 stability in drilling operation, improved the efficient of producing to raw coal coal cinder 1, has the success ratio of producing height, the advantages such as the coal sample end face is smooth, can keep preferably integrality of coal sample, for numerous scientific research personnel provide a kind of convenient and swift, with low cost, the indoor coal sample method for making that success ratio is high, save the sample preparation time, improved work efficiency.
Certainly, the present invention is not limited to above-mentioned form, in step (), also can directly original coal cinder 1 be put into casing 2, directly build, without packaging film 5 encapsulation, as long as make concrete 3 be full of all spaces between original coal cinder 1 and the casing 2, concrete 3 be wrapped in original coal cinder 1 up and down and the border, all can reach goal of the invention.
Claims (6)
1. raw coal coal sample method for making, it is characterized in that: comprise the steps: that (one) will fetch the original coal cinder that comes from colliery scene first and place in the casing, then build with concrete, make concrete be full of all spaces between original coal cinder and the casing; (2) allow concrete harden fully after, utilize the drill hole sampling machine that coal cinder is taken a sample; The coal sample that (three) will drill through out at last is polished into the coal sample of experiment required size, and the raw coal coal sample of making is placed the usefulness of preparing against experiment in the drying box.
2. raw coal coal sample method for making as claimed in claim 1, it is characterized in that: the original coal cinder in the described step () is used first the packaging film good seal, then place in the casing and build, concrete be wrapped in packaging film up and down and the border.
3. raw coal coal sample method for making as claimed in claim 1 or 2, it is characterized in that: described concrete is thin orthopaedics material concrete.
4. raw coal coal sample method for making as claimed in claim 3, it is characterized in that: described packaging film is plastic foil.
5. raw coal coal sample method for making as claimed in claim 4, it is characterized in that: described casing is wooden case.
6. raw coal coal sample method for making as claimed in claim 5 is characterized in that: in the described step (three), the coal sample in drilling through is by the polishing of Double End grinding stone machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104094600A CN102928273A (en) | 2012-10-24 | 2012-10-24 | Raw coal sample making method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104094600A CN102928273A (en) | 2012-10-24 | 2012-10-24 | Raw coal sample making method |
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| CN102928273A true CN102928273A (en) | 2013-02-13 |
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| CN2012104094600A Pending CN102928273A (en) | 2012-10-24 | 2012-10-24 | Raw coal sample making method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485760A (en) * | 2013-09-25 | 2014-01-01 | 中国石油集团川庆钻探工程有限公司 | Full-scale coal bed wellbore stability evaluation method |
| CN104111186A (en) * | 2014-06-18 | 2014-10-22 | 陕西陕煤黄陵矿业有限公司 | Preparation method of cleaned coal sample |
| CN107036896A (en) * | 2017-06-13 | 2017-08-11 | 中国建材检验认证集团股份有限公司 | Existing silicone sealant, structure glue tensile property assay method |
| CN114112509A (en) * | 2021-12-15 | 2022-03-01 | 南京工业大学 | Soil sample membrane loading device for soil-driven triaxial test |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5689059A (en) * | 1979-12-20 | 1981-07-20 | Kawasaki Steel Corp | Apparatus of preparing sample for testing fired coke |
| US5413004A (en) * | 1993-07-23 | 1995-05-09 | Johnson Industries, Inc. | Method and apparatus for sampling coal |
| WO2011070248A1 (en) * | 2009-12-08 | 2011-06-16 | Brgm | Carbon core preparation method |
| CN102519770A (en) * | 2011-12-21 | 2012-06-27 | 中联煤层气有限责任公司 | Method and device for preparing coal sample used for nuclear magnetic resonance test |
| CN102589926A (en) * | 2012-01-15 | 2012-07-18 | 付志亮 | Deformed coal sampling method |
-
2012
- 2012-10-24 CN CN2012104094600A patent/CN102928273A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5689059A (en) * | 1979-12-20 | 1981-07-20 | Kawasaki Steel Corp | Apparatus of preparing sample for testing fired coke |
| US5413004A (en) * | 1993-07-23 | 1995-05-09 | Johnson Industries, Inc. | Method and apparatus for sampling coal |
| WO2011070248A1 (en) * | 2009-12-08 | 2011-06-16 | Brgm | Carbon core preparation method |
| CN102519770A (en) * | 2011-12-21 | 2012-06-27 | 中联煤层气有限责任公司 | Method and device for preparing coal sample used for nuclear magnetic resonance test |
| CN102589926A (en) * | 2012-01-15 | 2012-07-18 | 付志亮 | Deformed coal sampling method |
Non-Patent Citations (1)
| Title |
|---|
| 尹光志等: "两种含瓦斯煤样变形特性与抗压强度的实验分析", 《岩石力学与工程学报》, vol. 28, no. 02, 15 February 2009 (2009-02-15) * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485760A (en) * | 2013-09-25 | 2014-01-01 | 中国石油集团川庆钻探工程有限公司 | Full-scale coal bed wellbore stability evaluation method |
| CN104111186A (en) * | 2014-06-18 | 2014-10-22 | 陕西陕煤黄陵矿业有限公司 | Preparation method of cleaned coal sample |
| CN107036896A (en) * | 2017-06-13 | 2017-08-11 | 中国建材检验认证集团股份有限公司 | Existing silicone sealant, structure glue tensile property assay method |
| CN114112509A (en) * | 2021-12-15 | 2022-03-01 | 南京工业大学 | Soil sample membrane loading device for soil-driven triaxial test |
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Application publication date: 20130213 |