CN203672731U - Measuring device for coal petrography firmness coefficient - Google Patents
Measuring device for coal petrography firmness coefficient Download PDFInfo
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- CN203672731U CN203672731U CN201320838271.5U CN201320838271U CN203672731U CN 203672731 U CN203672731 U CN 203672731U CN 201320838271 U CN201320838271 U CN 201320838271U CN 203672731 U CN203672731 U CN 203672731U
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- cylinder
- heavy hammer
- smash
- weight
- measuring device
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Abstract
The utility model relates to a measuring device for coal petrography firmness coefficient. According to the measuring device, a mashing cylinder is arranged in a mashing cup; a heavy hammer is arranged in the mashing cylinder; spacing pins are arranged on the mashing cylinder; the lower part of a heavy hammer main body takes the shape of a cylinder; the upper part of the heavy hammer main body takes the shape of a conoid; an included angle formed between the generatrix and the bottom surface of the conoid at the upper part is great than or equal to 50 DEG; due to the interval of the spacing pins, the marching height of the heavy hammer is 600 mm. According to the measuring device provided by the utility model, the structure of the heavy hammer is improved based on firmness coefficient measuring experiment adopting the industrial standard 'drop weight method'; the experimental principle, experimental procedures, experimental equipment and other structures are unchanged; the process of the heavy hammer structural improvement is simple and the effect is remarkable; the measure device can be applied to the experimental process adopting the 'drop weight method' to measure the coal petrography firmness coefficient.
Description
Technical field
The utility model relates to coal petrography solid coefficient determination experiment equipment, specifically a kind of determinator of coal petrography solid coefficient.
Background technology
The solid coefficient of coal is an overall target of the opposing outside destroy ability that determines of the various character of coal.Practice shows, the outburst hazard in the coal seam that soundness is less is larger.The soundness of coal, as an outstanding important prediction index, directly has influence on the reliability of outburst prediction to the accuracy of its mensuration.The solid coefficient that " weighted-drop " surveys coal is the assay method of current China standard.In experimentation, find, when cylindric weight drop impacts the coal sample of smashing in cup, often have coal sample to drop on the upper surface of weight, these coal particles do not experience shattering process, can reduce coal dust amount, will have influence on the accuracy of measurement result.
Summary of the invention
The purpose of this utility model is to provide a kind of determinator of coal petrography solid coefficient, and the utility model can be eliminated the measuring error causing because of the cylinder form of weight, improves the accuracy that coal sample solid coefficient is measured.
The technical solution that the utility model adopts is as follows: a kind of determinator of coal petrography solid coefficient, comprise weight (1), spacer pin (2), smash cup (4) and smash cylinder (3) to pieces, smash in cup (4) and be provided with and smash cylinder (3) to pieces, smash to pieces in cylinder (3) and be provided with weight (1), smash cylinder (3) to pieces and be provided with spacer pin (2), it is characterized in that: weight (1) lower body part is divided into cylindrical, top is divided into taper shape, the angle of top cyclotomy taper bus and bottom surface is more than or equal to 50 °, it is highly 600mm that the spacing of spacer pin (2) is advanced weight (1).
The utility model is to measure in industry standard " weighted-drop " improvement of on the basis of solid coefficient experiment, heavy hammer structure being carried out, and other structure of experimental principle, experimental procedure and experiment equipment does not all change, and the process of heavy hammer structure transformation is simple, successful.Can be applied to " weighted-drop " measures in coal petrography solid coefficient experimentation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
A kind of determinator of coal petrography solid coefficient, comprise weight 1, spacer pin 2, smash cup 4 and smash cylinder 3 to pieces, smash in cup 4 and be provided with and smash cylinder 3 to pieces, smash to pieces in cylinder 3 and be provided with weight 1, smash cylinder 3 to pieces and be provided with spacer pin 2, weight 1 lower body part is divided into cylindrical, and top is divided into taper shape, the angle of top cyclotomy taper bus and bottom surface is more than or equal to 50 °, and it is highly 600mm that the spacing of spacer pin 2 is advanced weight 1.
By the coal cinder of sorting put into smash to pieces cylinder 3, smash cup 4 li put smash to pieces cylinder 3 after, to spacer pin 2, make its movement of falling object with portable weight 1, pound coal and complete the coal process of pounding for three times.Put on sub-sieve and sieve pounding fine coal that coal process obtains.The coal dust obtaining is poured in graduated cylinder and measured it highly.Weight 1 top is made in the situation of taper, and weight 1 rams while pounding the coal sample of smashing 3 li, cylinder to pieces, along weight 1 with smash to pieces and impact the coal sample of coming up between cylinder 3 and will be slipped to and smash 3 li, cylinder to pieces along the bus of weight 1.Weight 1 quality and current experiment after improvement are all 2400g by weight quality, and before and after spacer pin 2 spacing make to improve, the center of gravity of weight is highly 600mm smashing that cylinder advances in 3 to pieces.The center of gravity height of drop of weight 1 highly equates with advancing of weight center of gravity before improvement.
Claims (1)
1. the determinator of a coal petrography solid coefficient, comprise weight (1), spacer pin (2), smash cup (4) and smash cylinder (3) to pieces, smash in cup (4) and be provided with and smash cylinder (3) to pieces, smash to pieces in cylinder (3) and be provided with weight (1), smash cylinder (3) to pieces and be provided with spacer pin (2), it is characterized in that: weight (1) lower body part is divided into cylindrical, top is divided into taper shape, the angle of top cyclotomy taper bus and bottom surface is more than or equal to 50 °, and it is highly 600mm that the spacing of spacer pin (2) is advanced weight (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320838271.5U CN203672731U (en) | 2013-12-18 | 2013-12-18 | Measuring device for coal petrography firmness coefficient |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320838271.5U CN203672731U (en) | 2013-12-18 | 2013-12-18 | Measuring device for coal petrography firmness coefficient |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203672731U true CN203672731U (en) | 2014-06-25 |
Family
ID=50969013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320838271.5U Expired - Fee Related CN203672731U (en) | 2013-12-18 | 2013-12-18 | Measuring device for coal petrography firmness coefficient |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203672731U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107894497A (en) * | 2017-11-06 | 2018-04-10 | 中煤科工集团重庆研究院有限公司 | Underground rapid determination method for firmness coefficient of coal |
| CN112229745A (en) * | 2020-08-17 | 2021-01-15 | 中煤科工集团重庆研究院有限公司 | Coal rock hardness detection test device and test method |
-
2013
- 2013-12-18 CN CN201320838271.5U patent/CN203672731U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107894497A (en) * | 2017-11-06 | 2018-04-10 | 中煤科工集团重庆研究院有限公司 | Underground rapid determination method for firmness coefficient of coal |
| CN107894497B (en) * | 2017-11-06 | 2020-05-01 | 中煤科工集团重庆研究院有限公司 | Method for determining coal firmness factor under well |
| CN112229745A (en) * | 2020-08-17 | 2021-01-15 | 中煤科工集团重庆研究院有限公司 | Coal rock hardness detection test device and test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20141218 |
|
| EXPY | Termination of patent right or utility model |