Coal mine underground multi-stage energy-saving roadway cleaning device
A cleaning device and roadway technology, applied in safety devices, mining equipment, earthwork drilling and mining, etc., can solve problems such as easy failure, failure to realize section cleaning, and many power lines and communication lines, so as to achieve improved safety performance and dust removal effect Good, radiation and wide coverage effect
Inactive Publication Date: 2015-11-18
SHANDONG UNIV OF SCI & TECH
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Problems solved by technology
Disadvantages, all sections cannot be cleaned; if automatic control equipment is used for intelligent control, electromagnetic switches need to be installed at each point, and there are many power lines and communication lines, which are prone to failure under specific working conditions underground
Method used
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Embodiment 1
[0066] Taking the roadway with a length of 300m as an example, it is divided into three-level scour areas, with the working face as the origin, and the first 100m is the three-level cleaning area (the low-pressure water area is 1MPa, and the threshold value of all nozzles in this area is set below 1MPa);
[0067] 100-200m is the secondary cleaning area (medium pressure water area 2MPa, the threshold x of all nozzles in this area is set to: 1MPa
[0068] Note: The set threshold and flushing levels can be adjusted appropriately according to different mine conditions.
[0069] At the beginning of roadway cleaning, first set the pressure of the high-pressure water pump to 1MPa, and the threshold of the nozzles in the third-level scour area near the working face is less than 1MPa, that is, the water pressure is greater than the threshold of t...
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The invention discloses a coal mine underground multi-stage energy-saving roadway cleaning device. The cleaning device is characterized in that a water supply pipe is arranged in the longitudinal direction of a roadway, penetrates through the whole roadway and is hung on anchor rods on a roadway roof through hooks; an adjustable high-pressure water pump supplies water to the water pipe; rotary sprayer assemblies are connected with the water supply pipe in parallel through needle valves at equal intervals; each rotary sprayer assembly comprises a center nozzle and four peripheral nozzles, wherein the four peripheral nozzles each comprise a wide-angle sector-shaped atomizing nozzle and a narrow-angle sector-shaped atomizing nozzle; the number of flushing stages of the roadway is determined according to the length of the roadway through the technical means such as control switches of pneumatic actuators arranged at the height positions capable of being reached by the hands of operators, and the whole roadway is cleaned and flushed in a graded mode. Compared with the prior art, the cleaning device has the advantages of being simple in structure, convenient to control and adjust, good in dust removal and dust fall effect, low in operating cost, capable of saving energy and water, safe, stable, reliable and the like.
Description
technical field [0001] The invention relates to a mine underground roadway cleaning device, in particular to a coal mine underground multi-stage energy-saving roadway cleaning device. Background technique [0002] During coal mining, mine dust is one of the five major disasters in coal mines. [0003] Dust not only has the potential danger of explosion, but also reduces the service life and precision of equipment, reduces the visibility of the production site, and greatly increases the risk of occupational diseases (such as pneumoconiosis) for workers who have been in contact with dust sources for a long time. [0004] In the coal production process, almost all operations may generate dust. Especially for high-yield and high-efficiency mining production processes with a high degree of mechanization, the dust in the air at the downhole operating point is always maintained at a relatively high concentration. [0005] In the process of coal mining, the underground roadway is ...
Claims
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IPC IPC(8): E21F5/04
Inventor 刘兆霞
Owner SHANDONG UNIV OF SCI & TECH
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