Method for coal and gas outburst simulation experiment
A technology of gas outburst and simulation experiments, applied in the experimental field, can solve the problems of inapplicable quantitative relationship research, outdated monitoring equipment and means, and small size of simulated coal samples, so as to reduce coal and gas outburst accidents, facilitate data collection, and structure simple effect
Active Publication Date: 2015-07-15
CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
View PDF13 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Although the above-mentioned coal and gas outburst simulation test device has played a great role in the study of coal and gas outburst mechanism, with the development of coal and gas outburst mechanism, especially the proposal of the mechanism of coal and gas outburst mechanics, the above-mentioned simulation device The existing defects of small simulated coal sample size, low force dimension, small inflation pressure, and outdated monitoring equipment and methods are no longer suitable for the current research on the quantitative relationship between coal and gas outburst mechanism.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0033] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:
[0034] Such as Figure 1-9 As shown, the location words such as front, back, left, and right in the present invention only represent relative positions in the figure, and do not represent the absolute position of the product.
[0035] The coal and gas outburst simulation device of the present invention is mainly composed of frame 1, test bench 2, outburst box 3, guide rail 4, cylinder 5, upper pressure plate 6, side pressure plate 7, upper hydraulic cylinder 8, side pressure cylinder 9 and other components .
[0036] The frame 1 is a frame surrounded by bottom beams, left and right vertical beams and upper beams installed under the ground, and a test bench 2 is installed on the bottom beam, and the upper surface and the bottom surface of the test bench 2 are Flush, the shown test bench 2 is provided with a guide rail 4, the guide rail 4 extends outside the ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| length | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a method for a coal and gas outburst simulation experiment. The method comprises the following steps that a, a simulation device is prepared; b, broken coal is contained in an outburst box, briquette coal pressing is carried out, then vacuumizing treatment is carried out, gas of one barometric pressure is filled into the outburst box after vacuumizing is completed, and then pressurization continues to be carried out until a coal body is completely compacted; c, an end cap on an outburst opening is taken out, an explosion venting device is arranged on the outburst opening, the gas is filled into the outburst box until absorption balance is achieved, then briquette coal is pressurized again until the stress state of a coal layer needing to be simulated is met, finally, coal and gas outburst is stimulated, gas flow is shot by a high-speed camera, and data are collected. The method is reasonable in design, simple in structure and easy to implement, multi-dimensional pressure loading can be achieved, inflation pressure is large, inflation is more even, sealing performance is good, the data are convenient to collect, and an important means is provided for deeply studying the coal and gas outburst mechanical action mechanism and reducing coal and gas outburst accidents.
Description
technical field [0001] The invention relates to an experiment method, in particular to a coal and gas outburst simulation experiment method. Background technique [0002] Coal and gas tushan is a disastrous dynamic phenomenon of coal and gas accompanied by sound and violent energy effects that occurs during underground mining activities in coal mines. A large amount of coal, gas or rock is ejected from the rock mass, and holes of a special shape are formed in the coal mass. [0003] 95% of my country's coal mining is underground, and the geological conditions of coal seams are complex. With the mining depth of about 10-20m per year extending to the deep, coal and gas outburst disasters are becoming more and more serious. From July 2000 to December 2012, a total of 411 coal and gas outburst fatal accidents occurred in my country, with 2506 deaths, which has become a key factor restricting the safe production of coal mines and the healthy development of the coal industry in m...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/00
Inventor 胡千庭文光才陈金华王波隆清明张淑同刘延保杨慧明苗法田戴林超
Owner CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD