the fully mechanized thin coal seam mining technology in highly gassy mines, it can speed up the mining of methane releasing coal seams, achieve a balanced extraction of thick and thin seams and, ultimately, reach the goal of safe mining operations.
1 The way of ultra thin coal seam mining technology. Existing fully mechanized mining equipment includes (1) Auger shearer. Auger shearer is transform from auger drill which is used for opencast mine. The output level of the working is low when use the auger shearer only.
Advanced Manless Intelligent Fully-mechanized Coal Mining Technology. Recent years, manless intelligent fully-mechanized coal mining technology is very popular in coal mining industry of China. The study and application of manless fully-mechanized coal mining technology and equipment which used for the thickness of coal seam from 1.4m to 2.2m.
Jun 01, 2011 In view of the present situations and existing problems of thin coal seam mining under complex geological conditions, low-profile mining equipment for fully mechanized coal mining was developed. This paper presents the study on the development of the equipment.
Oct 10, 2014 Fully mechanized mining (FMM) technology has been applied in Chinese coal mines for more than 40 years. At present, the output of a FMM face has reached 10-million tons with Chinese-made equipment. In this study, the new developments in FMM technology and equipment in Chinese coal mines during past decades are introduced.
170 Fully mechanized coal mining technology for thin coal seam under complicated geological conditions 1. INTRODUCTION Based on their thickness, coal seams have been classified into several categories seams with thickness of 0.81.3 m are in the thin coal seam group and thickness of
Li Q., Chen Z. W., Yu W. Application of fully mechanized mining technique in thin coal seam under deep coal mine. Journal of Xian University of Science and Technology, Vol. 29, Issue 1, 2009, p. 31-35. Search CrossRef Zhang L. J., Zhang L. Comprehensive assessment on suitability of fully mechanized coal mining technology in thin seam. Coal ...
Oct 14, 2021 Recent Developments in Mechanized Technology for Mining. In China in 2014, fully mechanized mining (FMM) face output reached 10 million tons (Mt) of coal, out of a total of 3465 Mt. China is the biggest producer of coal, being responsible for over 50% of total global output in 2020. As explained before, thin-seam coal mining is present in ...
Sep 20, 2016 Miao XX, Zhang JX, Guo GL (2010a) Method and technology of full-mechanized coal mining with solid waste filling. China University of Mining and Technology Press, Xuzhou. Google Scholar Miao XX, Zhang JX, Guo GL (2010b) Study on waste-filling method and technology in fully-mechanized coal mining. J China C Soc 3516
Sun, B. (2020) Gas Drainage Technology in Fully Mechanized Caving Face with Horizontal Sublevel Mining in Steep and Extra-Thick Coal Seam. Open Journal of Geology, 10, 957-970. doi 10.4236/ojg.2020.109043.
Taking the fully mechanized mining face (FMMF) through the abandoned roadway (AR) in a coal mine in Shanxi Province, China as the engineering background, the field investigation, theoretical analysis, numerical simulation and field test were comprehensively used to study the instability mechanism of the trend AR. The deformation and failure evolution of the trend AR roof were deduced into four ...
According to the actual situation of coal seams occurrence in the 3212 (II) working face, generally the traditional mining methods use the flexible shield blasting technology for extraction. Since the successful application of the large dip angle fully mechanized mining in 1997, the mine has been using fully mechanized mining.
Apr 20, 2021 4.1. Coal Dust Pollution at Fully Mechanized Mining Face. Dust pollution in fully mechanized mining has always been the focus of mine dust prevention and control. The research methods for dust pollution in fully mechanized mining are mainly divided into experiments and numerical simulations.
Nov 01, 2018 The fully-mechanized coal mining face has a narrow space but comprises multiple production processes, thereby setting quite high restrictions on the overall dimension and installation position of the dust removal fans. This study chose a high-speed hydraulic motor with a small volume as the driving source of the dust removal fan.
Background Prior to 1970, coal mining technology and prevention measures in China were poor. Mechanized coal mining equipment and advanced protection measures were continuously installed in the mines after 1970. All these improvements may have resulted in a change in the incidence of coal workers pneumoconiosis (CWP). Therefore, it is important to identify the characteristics of CWP today ...
Nov 19, 2021 With the development of coal resource mining at depth, rock burst and other disasters faced by deep mining are more and more common. However, deep mining still needs to face the complex geological environment of high stress. This study first analyses the structural characteristics and mechanical model of gob-side entry retaining and puts forward the corresponding control
Feb 09, 2021 In order to study the occurrence mechanism of rock burst in L-shaped zone during a fully mechanized mining period, the No. 705 working face which is located in Baojishan Colliery is taken as a typical engineering background. By means of in situ investigation, theoretical analysis, numerical simulation, in situ tests, and relevant monitoring methods, the occurrence mechanism of rock burst
Nov 19, 2021 2 Shanxi Key Laboratory of Fully Mechanized Coal Mining Equipment, Taiyuan, China 3 State Key Laboratory of Mining Equipment and Intelligent Manufacturing, Taiyuan, China.
May 08, 2015 Fully mechanized solid backfill mining (FMSBM) technology adopts dense backfill body to support the roof. Based on the distinguishing characteristics and mine pressure control principle in this technology, the basic principles and methods for mining pressure monitoring were analyzed and established. And the characteristics of overburden strata movement were analyzed by monitoring the
A fully-mechanized coal mining (FMCM) technology capable of filling up the goaf with wastes (including solid wastes) is described. Industrial tests have proved that by using this technology not ...
Backfilling technology and strata behaviors in fully mechanized coal mining working face March 2012 International Journal of Mining Science and Technology 22(2)151157
May 09, 2018 In a fully mechanised coal-mining face, the means to train machine operators are inadequate. A remote virtual reality (VR) operation system for a fully mechanised coal-mining face using real-time data and collaborative network technology is presented in this study. The overall framework and key technologies are introduced.
unmanned mining on fully mechanized coal mining face, which had applied value populariz ing on the mining face with thin and good condition of thin geology. 1Research background . The automation control technology of unmanned fully mechanized mining face in coal mine and
strata behaviors in fully mechanized coal mining working face were reported (Zhang et al. 2012). These studies had contributed to the improvement of the backfill mining technologies in the recent decades, however, most of research results mainly focused on non-coal mines. Duo to the difference of deposition shape and methods used
Sep 20, 2016 Method and technology of full-mechanized coal mining with solid waste filling. Xuzhou China University of Mining and Technology Press 2010. Google Scholar Miao XX, Zhang JX, Guo GL. Study on waste-filling method and technology in fully-mechanized coal mining. J China C Soc. 2010 3516. Google Scholar Qian MG, Miao XX, Jia-Lin XU.
Sep 20, 2016 Strata behavior at fully-mechanized coal mining and solid backfilling face. Yin W(1), Chen Z(1), Quan K(1), Mei X(1). Author information (1)School of Mining, China University of Mining and Technology, Xuzhou, China. Taking Ping Dingshan Coal Mine Group 12 as an example, this paper explains the system layout, key equipment and backfilling ...
Strata behavior at fully-mechanized coal mining and solid backfilling face Wei Yin *, Zhiwei Chen, Kai Quan and Xiancheng Mei Abstract Taking Ping Dingshan Coal Mine Group 12 as an example, this paper explains the system layout, key equipment and backfilling technology in detail.
Characteristics such as narrow mining space, low level of mechanization, poor working environment, and high cost of mining, restrict the development of mining safety and efficiency. Recently, fully mechanized mining technology has developed rapidly for thin coal seams, the level of yield and efficiency has reached or exceeded the international ...
1. A filling mining method for a fully-mechanized top coal caving working face, comprising the following steps at step A, dividing the fully-mechanized top coal caving working face into a filling zone and a top coal caving zone along a strike of the working face, wherein lengths of the filling zone and the top coal caving zone are equal to a strike length of the working face, a sum of widths ...
Loose blasting technology is applied to the problem of fully mechanized coal face passing through fault. The paper gets safe and practical loose blasting parameters and blasting process, achieves no re-open-off cut for the fully mechanized coal face, reduces loss of coal pillars for faults and improves the coal recovery rate. At last, the goal of high yield, steady yield, and increasing yield ...
1 Wu,Y.P. Research of Rock Pressure Appear Pattern of Extra-thick Coal Seam Fully Mechanized Caving Mining Face in Datong Mine J Coal Science and Technology, 2008, 36(1) 8-10. DOI 10.1109/icmt.2011.6002055
a. College of Mechanical Engineering, Key Laboratory of Fully Mechanized Coal Mining Equipment, Taiyuan University of Technology, Shanxi 030024,China b. Department of Design, Manufacture and Engineering Management, University of Strathclyde, Glasgow, UK Corresponding author name YANG Zhao-jian Affiliation
In recent years, with the rapid development of fully mechanized mining equipment manufacturing technology, fully mechanized mining equipment to heavy, strong and automated, so that the reliability of the equipment is guaranteed, a strong impetus to the development of large mining technology, new round of coal mining technology revolution, the ...
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