CN202330193U - Device for determining obdurability coefficients of coal - Google Patents
Device for determining obdurability coefficients of coal Download PDFInfo
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- CN202330193U CN202330193U CN2011204682641U CN201120468264U CN202330193U CN 202330193 U CN202330193 U CN 202330193U CN 2011204682641 U CN2011204682641 U CN 2011204682641U CN 201120468264 U CN201120468264 U CN 201120468264U CN 202330193 U CN202330193 U CN 202330193U
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Abstract
The utility model discloses a device for determining the obdurability coefficients of coal, and the device comprises a pounding drum and a counterweight, wherein the counterweight is in clearance fit with the inner wall of the pounding drum, the lower end of the pounding drum is provided with a closed bottom cover, a sieve is arranged below the pounding drum, and the lower port of the sieve is communicated with an electronic metering cylinder. On the basis of complying with the determination principles and standards on obdurability coefficients in the Rules of Coal and Gas Outburst Prevention, the defects in a testing process are improved, so that a determining process is implemented in a mechanical mode substituting for a manual mode, so that, the cumbersome procedures can be effectively simplified, the determining time is shortened, and the determining efficiency is improved; meanwhile, personal errors are reduced, and the determining accuracy is improved.
Description
Technical field
The utility model belongs to the Safety of Coal Mine Production equipment technical field, particularly a kind of coal body solid coefficient determinator.
Background technology
Coal and gas are outstanding to be a kind of extremely complicated mash gas dynamic phenomenon that occurs under the coal mine; Bring serious threat to the colliery safety in production; It is the result of the physico-mechanical properties combined action of terrestrial stress, gas and coal; Terrestrial stress and gas pressure are kinetic factors, and the survivability of coal is the outstanding resistance factor that takes place, its parameter correlation such as physical strength, crack and coal body structure main and coal.For mechanics parameter measuring more complicated such as projecting coal bed, the intensity of coal, the mensuration of the solid coefficient of coal is then fairly simple, therefore, generally adopts the solid coefficient of coal body to come concentrated expression coal body survivability.
The coal body solid coefficient is more little, and it is big more that outstanding danger takes place, therefore, with the coal body solid coefficient as one of prediction index of coal seam outburst hazard.And in daily prediction work; Usually combine coal body solid coefficient and drilling cuttings desorption of mash gas index and the gas many indexs of initial velocity of gushing out; The outburst hazard of synthetic determination workplace more comprehensively reflects outstanding leading factor, can improve the accuracy of outburst prediction.
But; The coal body solid coefficient generally is to measure with weighted-drop in the laboratory; Yet when carrying out coal body solid coefficient mensuration in the laboratory, have following problem: 1, when tension weight churning coal body and sub-sieve screening coal body, coal ash flies upward everywhere; Get into respiratory tract easily, influence healthy; 2, dropping hammer when operation, the height that the height of weight possibly not mentioned regulation just drops hammer, and perhaps weight is with smashing an interior wall friction to pieces, causes non-ly freely to fall, and influences the accuracy rate of mensuration; 3, when measuring the volume of coal dust with metering cylinder, personal error appears in reading of data effort easily; 4, the weighted-drop program is more, comprises getting coal sample, weigh, smash to pieces, sieve and measuring, and holding time is longer, and aforesaid operations is pure manual operations, and efficient is lower, and labour intensity is high.
The utility model content
The purpose of the utility model provides a kind of compact conformation, is convenient to operate, measure the coal body solid coefficient determinator that the result is accurate and automaticity is high.
For realizing above-mentioned purpose; The technical scheme of the utility model is: a kind of coal body solid coefficient determinator; Comprise smash to pieces the tube and weight, weight with smash an inwall clearance fit to pieces, smash the bottom that a lower end is provided with sealing to pieces; The said tube below of smashing to pieces is provided with sieve, and the sieve lower port is connected with the electrometer graduated cylinder.
Said tube one side of smashing to pieces offers feeding mouth.
The said tube top of smashing to pieces is provided with pulley, is arranged with stay cord on the pulley, and stay cord one end connects weight, the other end is connected with motor.
The said tube of smashing to pieces is provided with cylinder, bottom one side through rotating shaft be hinged smash a lower end to pieces, opposite side links to each other with the flexible end of cylinder.
Be connected with electromagnetic shaker on the said sieve.
Be connected with display screen on the said electrometer graduated cylinder.
Said cylinder, motor, electromagnetic shaker and display screen are connected with control panel through lead.
Compared with prior art, the utility model has the advantages that:
1, the utility model comprise smash to pieces the tube and weight, weight with smash an inwall clearance fit to pieces, smash the bottom that a lower end is provided with sealing to pieces; The said tube below of smashing to pieces is provided with sieve, and the sieve lower port is connected compact conformation with the electrometer graduated cylinder; Be convenient to operation; Mensuration result is accurate, and automaticity is high, and labour intensity is low.
2, smash the tube top to pieces and be provided with pulley, be arranged with stay cord on the pulley, stay cord one end connects weight, the other end is connected with motor, can control automatically and drop hammer, and can effectively reduce personal error, improves and measures accuracy rate.
3, cylinder, motor, electromagnetic shaker and display screen are connected with control panel through lead, and to cylinder, motor, electromagnetic shaker and electrometer graduated cylinder centralized management control, thereby the robotization of realization mensuration process can reduce labour intensity, improves automaticity.
4, the utility model is in following " control coal and gas are outstanding to be stipulated " on the basis to the measuring principle of solid coefficient and standard; Weak point in the test process is improved, and the mensuration process is operated by mechanical instead of manual, can effectively simplify red tape; Shorten minute; Improve determination efficiency, reduce personal error simultaneously, improve the accuracy rate of measuring.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Coal body solid coefficient determinator as shown in Figure 1; It comprises smashs tube 1 and weight 2 to pieces; Weight 2 and the inwall clearance fit of smashing tube 1 to pieces are provided with pulley 7 above smashing tube 1 to pieces, be arranged with stay cord 8 on the pulley 7; Stay cord 8 one ends connect weight 2, the other end is connected with motor 6, and motor 6 is a micromachine.Smash to pieces the tube 1 one sides offer feeding mouth 3, be convenient to smash to pieces the tube 1 in the adding coal sample.Smashing the bottom 4 that tube 1 lower end is provided with sealing to pieces; Smash tube to pieces and 1 be provided with cylinder 5, bottom 4 one sides through rotating shaft 15 be hinged smash tube 1 lower end to pieces, opposite side links to each other with the flexible end of cylinder 5, the keying of the extension and contraction control bottom 4 through cylinder 5; When cylinder 5 moves downward; Bottom 4 is opened, and when cylinder 5 moved upward, bottom 4 was closed.Smash tube 1 below to pieces and be provided with sieve 10, sieve 10 1 sides are connected with electromagnetic shaker 9, and through the vibrations of electromagnetic shaker 9, coal dust comes out from 10 times screenings of sieve; The lower port of sieve 10 is connected with electrometer graduated cylinder 11, is connected with display screen 12 on the electrometer graduated cylinder 11, and the counting of electrometer graduated cylinder 11 can directly be presented on the display screen 12, is convenient to reading of data.
In order to reduce labour intensity and to improve automaticity; Cylinder 5, motor 6, electromagnetic shaker 9 and display screen 12 are connected with control panel 13 through lead 14; To cylinder 5, motor 6, electromagnetic shaker 9 and the 11 centralized management controls of electrometer graduated cylinder, thus the robotization of realization mensuration process.
In the utility model, motor 6 is positive and negative motor, can rotate and reverse, and when motor 6 was just changeing, weight 2 is enhanced smashed tube 1 topmost to pieces, and when motor 6 counter-rotatings, weight 2 falls, and the linear velocity during motor 6 counter-rotatings is faster than weight 2 free-falling speed.Stay cord 8 is a flexible strand, and weight 2 freely falls in the time of can guaranteeing motor 6 counter-rotatings.
The determination step of the utility model mensuration coal body solid coefficient is following:
(1) coal that will weigh is put into from feeding mouth 3 and is smashed tube 1 to pieces;
(2) starter motor 6,2 free-fallings of control weight, and repeat 3 times, the coal of smashing tube 1 bottom to pieces is smashed;
(3) control cylinder 5 is opened bottom 4, makes coal dust fall into sieve 10;
(4) the starting shock device 9, fully shake the coal dust in the sieve 10, and it is leaked down from sieve aperture;
(5) coal dust that leaks down gets in the electrometer graduated cylinder 11, directly shows the height of coal dust in the electrometer graduated cylinder 11 on the display screen 12;
(6) the coal dust volume data on the reading displayed screen 12 utilizes the data computation that reads to go out the coal body solid coefficient, accomplishes one group of experiment.
The utility model is in following " control coal and gas are outstanding to be stipulated " on the basis to the measuring principle of solid coefficient and standard; Weak point in the test process is improved; The mensuration process is operated by mechanical instead of manual; Can raise the efficiency, reduce personal error simultaneously, improve the accuracy rate of measuring.
Claims (7)
1. coal body solid coefficient determinator comprises and smashs tube and weight to pieces, weight with smash an inwall clearance fit to pieces; Smash the bottom that a lower end is provided with sealing to pieces; It is characterized in that the said tube below of smashing to pieces is provided with sieve, the sieve lower port is connected with the electrometer graduated cylinder.
2. coal body solid coefficient determinator as claimed in claim 1 is characterized in that: said tube one side of smashing to pieces offers feeding mouth.
3. according to claim 1 or claim 2 coal body solid coefficient determinator, it is characterized in that: the said tube top of smashing to pieces is provided with pulley, is arranged with stay cord on the pulley, and stay cord one end connects weight, the other end is connected with motor.
4. coal body solid coefficient determinator as claimed in claim 3 is characterized in that: the said tube of smashing to pieces is provided with cylinder, bottom one side through rotating shaft be hinged smash a lower end to pieces, opposite side links to each other with the flexible end of cylinder.
5. coal body solid coefficient determinator as claimed in claim 4 is characterized in that: be connected with electromagnetic shaker on the said sieve.
6. coal body solid coefficient determinator as claimed in claim 5 is characterized in that: be connected with display screen on the said electrometer graduated cylinder.
7. coal body solid coefficient determinator as claimed in claim 6, it is characterized in that: said cylinder, motor, electromagnetic shaker and display screen are connected with control panel through lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204682641U CN202330193U (en) | 2011-11-23 | 2011-11-23 | Device for determining obdurability coefficients of coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204682641U CN202330193U (en) | 2011-11-23 | 2011-11-23 | Device for determining obdurability coefficients of coal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202330193U true CN202330193U (en) | 2012-07-11 |
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ID=46442171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204682641U Expired - Fee Related CN202330193U (en) | 2011-11-23 | 2011-11-23 | Device for determining obdurability coefficients of coal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202330193U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108956341A (en) * | 2018-08-14 | 2018-12-07 | 卢锦福 | A kind of building material test specimen crack folding control device repeatedly |
| CN111272970A (en) * | 2020-01-21 | 2020-06-12 | 中煤科工集团重庆研究院有限公司 | Coal and gas outburst simulation similarity ratio determination and inversion reduction analysis method |
| 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 |
| CN113245023A (en) * | 2021-05-08 | 2021-08-13 | 中煤科工集团沈阳研究院有限公司 | Automatic experimental device and method for measuring coal firmness coefficient |
| CN113624604A (en) * | 2021-08-04 | 2021-11-09 | 合肥综合性国家科学中心能源研究院(安徽省能源实验室) | Crushing specific power test system based on granule coal compression experiment |
-
2011
- 2011-11-23 CN CN2011204682641U patent/CN202330193U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108956341A (en) * | 2018-08-14 | 2018-12-07 | 卢锦福 | A kind of building material test specimen crack folding control device repeatedly |
| CN111272970A (en) * | 2020-01-21 | 2020-06-12 | 中煤科工集团重庆研究院有限公司 | Coal and gas outburst simulation similarity ratio determination and inversion reduction analysis method |
| 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 |
| CN113245023A (en) * | 2021-05-08 | 2021-08-13 | 中煤科工集团沈阳研究院有限公司 | Automatic experimental device and method for measuring coal firmness coefficient |
| CN113624604A (en) * | 2021-08-04 | 2021-11-09 | 合肥综合性国家科学中心能源研究院(安徽省能源实验室) | Crushing specific power test system based on granule coal compression experiment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20131123 |