A fast and intelligent mining method for irregular working faces in coal mines
A mining method and working face technology, applied in ground mining, earth square drilling, underground mining, etc., to achieve the effects of alleviating the tension of replacement and the impact of working face mining, convenient use, wide adaptability and field applicability
Inactive Publication Date: 2021-09-21
CHINA UNIV OF MINING & TECH +2
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Problems solved by technology
[0004] The purpose of the present invention is to provide a fast and intelligent mining method for irregular working faces in coal mines, which solves the problem that the existing technology cannot quickly, safely and efficiently mine coal under the condition of working face lengthening and changing direction
Method used
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Embodiment 1
[0064] Example 1: The irregular surface in this case belongs to ① in Figure 5.
[0065] 1. Rapid installation, disassembly and transfer process of hydraulic support.
[0066] 1. Transportation of hydraulic support:
[0067] ①The hydraulic support is transported by winch 1 to the front of the track lane auxiliary road;
[0068] ②Transfer the hydraulic support to the front of the winch shuttle car by dispatching the winch and the auxiliary road;
[0069] ③Transport the hydraulic support to the tail wheel through the winch;
[0070] ④Through the two-speed winch, it is transported to the track lane and unloaded in advance;
[0071] 2. Unloading method of hydraulic support:
[0072] ① After the flatbed truck is transported to the front and outside, set up two stoppers on the downhill side of the flatbed truck (the roadway in the hydraulic support section added to track lane 9 is the downhill roadway), the winch is powered off and locked, remove the winch hook, and use The typ...
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The invention discloses a fast and intelligent mining method for irregular working faces in coal mines, which belongs to mining methods for irregular working faces. The fast and intelligent mining method of irregular working face adopts transportation equipment, transportation bracket and scraper, intelligently calculates the expansion and contraction positions according to the actual layout of the working face, places the ready-to-install bracket or direct retraction tool at the expected position, and then transports To the pre-installation position, unload the truck with a winch or other auxiliary equipment, and then install the bracket and scraper; when mining to the shortened face, first remove the bracket and scraper, transport to the corresponding roadway for loading, and finally use the winch or other auxiliary equipment Ship out the stand and scraper. Advantages: Maximize the recovery of scrap coal and reduce the waste of resources. Mining is carried out in an orderly, safe and efficient manner. Alleviate the tension of mine replacement and the influence of working face mining, and achieve high recovery rate mining of irregular coal seam groups. The entire intelligent mining method is convenient to use, safe and reliable, strong in adaptability, and has wide practicability.
Description
technical field [0001] The invention relates to a mining method for irregular working faces, in particular to a rapid and intelligent mining method for irregular working faces in coal mines. Background technique [0002] The appearance of irregular working faces in coal mines is the product of the development of coal mining technology to a certain extent. After entering the 21st century, with the increase of coal demand year by year, high-quality coal with good geological conditions, simple rock structure, low gas content and shallow buried depth Coal is getting less and less, mine mining has entered a critical stage, and a large number of irregularities appear. [0003] Due to factors such as the length of the irregular working face and the direction of advance change with the continuous advancement of the working face, the continuous change of direction and movement of frames and the increase and decrease of support distance during coal seam mining will have serious impact...
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IPC IPC(8): E21C41/18
CPCE21C41/18
Inventor 张强黄鹏柴军张琪慈忠贞孟凡林龚翰林刘宏亮吴坤
Owner CHINA UNIV OF MINING & TECH