Techno-Economics Analysis Of Fully Mechanized Mning

In condition of deep mining, big dip angle and high-stress complex excavate coal seam, all-round system researching and putting forward a complete set of mining technology which can bring high-efficiency and high-production . The technology can satisfy the first disparity-length fully mechanized working face's scheme feature.According to actual condition, we can divide the whole working face two big sections, called section A and section B. After that we divide the big sections eight little sections, called section â… -â…§. Different fully mechanized mining technology will be carried out. It would be satisfied mine produce and geology adaptability. Concerning face' s change, some measures is necessary .When the face have a little change, we will increase and decrease some individual hydraulic jacks. And when had a big change, we will increase and decrease some hydraulic chocks. For producing more triangle-coal which are nearby opening the breach and the stopping mining line, adjustment mining technology of conveyor' s head and tail in working face interrelated measures will be selected and used. The joint of fully mechanized working faces. Shields moved away by canal-method in disparity-length. Technology of prevent-slip of the equipment in steeply inclined coal. Cross the big fault.I will make use of the measures of techno-economics to analyze fully mechanized mining. And compare with fully mechanized mining and ordinary mechanized mining on some indexes which are financial net present value, financial rate of net present value, pay back period, financial internal rate of return, rate of investment' s gain, the whole investment' s gain and uncertainty analysis. After adopting fully mechanized mining, the whole investment' s gain is 105,920,000 ï¿¥,that is more 32, 660, 000 Y than ordinary mechanized mining' s(73, 260, 000 ï¿¥).And it obtains obviously economic performance.