Safe and Effective Production of Coal Mine Promoted by Coalbed Methane Reclamation

2012 ◽  
Vol 616-618 ◽  
pp. 310-315
Author(s):  
Jun Deng ◽  
Yan Hui Xu ◽  
Hua Jiang ◽  
Shao Bo Hu
Keyword(s):  
Energy Consumption ◽  
Coal Mining ◽  
Coal Mine ◽  
Coalbed Methane ◽  
Coal Field ◽  
Gas Explosion ◽  
High Quality ◽  
Mine Production ◽  
Production Safety

Along with the rapid increase of energy consumption of China, more attention has been paid to the CBM as one kind of clean and high-quality energy. CBM is the greatest threat to the coal mining. If CBM is extracted and well used before coal mining, the environment will be improved and gas explosion accident in coal mine will be obviously diminished. The exploit and advantage of CBM improves the coal field exploration degree and coal mine production safety and efficiency.

Principle of Well-Net Design for Coalbed Methane Exploitation in Coal Mine Area

2014 ◽  
Vol 543-547 ◽  
pp. 3967-3973
Author(s):  
Bao Shan Han
Keyword(s):  
Coal Mining ◽  
Coal Mine ◽  
Coalbed Methane ◽  
Design Theory ◽  
Surface Condition ◽  
Coal Pillar ◽  
Negative Influence ◽  
In Situ Stress ◽  
Well Location

There are abundant CBM (Coalbed Methane) in China. These CBM has caused a remarkable problem to the coal-mining in China. In order to improve the structure of Chinese energy and eliminate the risk of coal mine gas, the relevant industries and sections have implemented many explorations in CBM enriched areas. With great achievements, there are many important problems in the actions of CBM exploitation. The disadvantageous interaction of the surface CBM well and the later coal mining has been ignored at all. There are many disadvantages and defects. To solve these problems and eliminate or weaken the disadvantageous, the scientific and reasonable design of surface CBM well location is an important step. With the thinking of surface condition, coal mining plan, the arrangement of coal mine laneway, the direction and scale of the in-situ stress, and thinking more about the negative influence to and of surface CBM well, according to the theories of mining dynamics, mining engineering, mining geomechanics, and the CBM engineering, the design theory of the surface CBM well net can be studied. Finally, the arrangement principle of CBM product well in coal field is presented. The existing or future coal pillar will be a critical location for the surface CBM well location.

scholarly journals Prediction of the First Weighting from the Working Face Roof in a Coal Mine Based on a GA-BP Neural Network

2019 ◽  
Vol 9 (19) ◽  
pp. 4159
Author(s):  
Tan ◽  
Yang ◽  
Chang ◽  
Zhao
Keyword(s):  
Neural Network ◽  
Coal Mine ◽  
Bp Neural Network ◽  
Prediction Models ◽  
Initial Pressure ◽  
Mining Area ◽  
Mine Pressure ◽  
Mine Production ◽  
Production Safety ◽  
Matlab Programming

The accidents caused by roof pressure seriously restrict the improvement of mines and threaten production safety. At present, most coal mine pressure forecasting methods still rely on expert experience and engineering analogies. Artificial neural network prediction technology has been widely used in coal mines. This new approach can predict the surface pressure on the roof, which is of great significance in coal mine production safety. In this paper, the mining pressure mechanism of coal seam roofs is summarized and studied, and 60 sets of initial pressure data from multiple working surfaces in the Datong mining area are collected for gray correlation analysis. Finally, 12 parameters are selected as the input parameters of the model. Suitable back propagation (BP) and GA(genetic algorithm)-BP initial roof pressure prediction models are established for the Datong mining area and trained with MATLAB programming. By comparing the training results, we found that the optimized GA-BP model has a larger determination coefficient, smaller error, and greater stability. The research shows that the prediction method based on the GA-BP neural network model is relatively reliable and has broad engineering application prospects as an auxiliary decision-making tool for coal mine production safety.

The Accident Process Research of Gas Explosion Based on Situation Cognition

2011 ◽  
Vol 356-360 ◽  
pp. 666-670
Author(s):  
Lian Hua Cheng ◽  
Shu Gang Li ◽  
Hai Fei Lin
Keyword(s):  
Production Process ◽  
Work Environment ◽  
Coal Mine ◽  
Interaction Mechanism ◽  
Major Change ◽  
Process Research ◽  
Gas Explosion ◽  
Work Process ◽  
Mine Production ◽  
Unsafe Behavior

Accident is undesired to anyone. But the research shows that the main cause of accident is unsafe behavior. The interaction mechanism of accident system was analyzed in the process of gas explosion through typical accidents and the conclusion was that the accident was occurred because unsafe behavior induced the dangerous factor in work environment. In order to further acquaint of it, the situation cognition of workers in the coal mine production process was analyzed with the research of aviation. The cognition of safe information in work process was affected by workload, goal, work habituation and others. As workload increased, goal strengthened, the attention apperceived safe information is weaken and the major change of safe information wasn’t apperceived immediately in work environment, and the accident was happened in conditions of unsafe behavior. Finally, the accident model based on situation cognition was posed and some measures were proposed.

Application Research of Belt Conveyor Remote Maintenance Based on Cloud Computing

2014 ◽  
Vol 962-965 ◽  
pp. 1132-1135
Author(s):  
Mao Quan Zheng ◽  
Yuan Bin Hou
Keyword(s):  
Cloud Computing ◽  
Coal Mine ◽  
Application Research ◽  
Computing Environment ◽  
Belt Conveyor ◽  
Cloud Computing Environment ◽  
Mine Production ◽  
Remote Maintenance ◽  
Production Safety ◽  
Safety And Stability

In the coal production, coal belt conveyor as an important device to play a very important role, once the belt is abnormal, it is bound to affect the entire coal mine production safety. Article summarized the application of daily maintenance of belt conveyor under cloud computing environment, and introduces several kinds of common problem solving methods, to optimize the coal mine enterprise safety and stability of the belt conveyor equipment.

Studies to the Coal Gas Draining Feasibility and Potential Evaluation

2011 ◽  
Vol 63-64 ◽  
pp. 728-731
Author(s):  
Chun Wei Hui
Keyword(s):  
Coal Mine ◽  
General Analysis ◽  
Gas Explosion ◽  
Gas Drainage ◽  
Mine Area ◽  
Coal Gas ◽  
Gas Outburst ◽  
Coal Mine Gas ◽  
Mine Production ◽  
Potential Evaluation

The coal mine gas can cause gas explosion and gas outburst, which is a direct threat to the safety of coal mine production. The gas drainage technology is the highlights in the research of highly gassy mine and coal and gas outburst. Coal gas drainage in the coal mine area includes ground gas development and underground gas drainage. Therefore, the evaluation to the draining feasibility of the coal gas should also be divided into ground coal gas development and underground gas drainage. Draining feasibility of the gas refers to the draining extent in a certain area and the possibility of the development under existing economical situations. By general analysis to the geological parameter that influences the draining feasibility, the drainage area will be optimized in this paper. With the reservoir bed data analog technology, the draining feasibility of the coal gas in the DaFosi field and its draining protential will the evaluated in this paper.

The Hoist of Mine Improvement and Design of Brake System Study

2011 ◽  
Vol 341-342 ◽  
pp. 421-425
Author(s):  
Zhen Rong Lu
Keyword(s):  
Coal Mine ◽  
Practical Significance ◽  
Experimental Program ◽  
System Study ◽  
Specific Design ◽  
Safe Operation ◽  
Plc Control ◽  
Mine Production ◽  
Production Safety ◽  
Mine Hoist

The field of mine hoist in the coal mine has an important role, its relationship with the safe operation of coal mine production safety and the lives of many miners. This article of mine hoist began to study the current situation, put forward specific measures for improvement. And the introduction of PLC control system to improve the performance of mine hoist. In this paper, the specific principles of experimental program with the specific design, the study proved of great economic and practical significance.

Development Law and Watery Features of Collapse Column in Pansan Mine

2015 ◽  
Vol 737 ◽  
pp. 817-822
Author(s):  
Yong Jun Li ◽  
Hao Sun ◽  
Xiao Ming Li
Keyword(s):  
Coal Mine ◽  
North China ◽  
Scientific Basis ◽  
Filling Material ◽  
Impact Zone ◽  
Mine Production ◽  
Production Safety ◽  
The Rich ◽  
Collapse Column ◽  
The Impact

The collapse column is widely developed and distributed in North China coalfield, has been a threat for coal mine production safety. According to the existing collapse columns in pansan mine, using the combination with geology analyzing and geophysical exploration technology, the cause and development regularity of the collapse columns is discussed in a way of palaeogeographic and palaeoenvironment, the inner filling material features of the collapse columns in the coalfield are introduced, The watery features of collapse columns are studied. The results show that collapse columns have a law of zonation in the horizontal and vertical , and have a certain subsiding distance, collapse column widths ranging periphery have the peripheral edge of the impact zone and transition zone, In the collapse column, the cementation degree is poor at the top, highly compressed at the middle and relatively poor in the bottom. The top and middle sections are less in water bearing, the rich water in the bottom was caused by the vertically leakage recharge from Ordovician limestone in the deep. The research results provide scientific basis for the prevention of collapse column in coal mine.

Sign in / Sign up

Export Citation Format

Share Document