Building A 806, Yinhe Plaza, High-teach Zone,, Jinan, Shandong
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详情
The technology wins the National
Science and Technological Progress Second award, Provincial Science
and Technological Progress First Award. Overview: As a mineshaft with 2.2 million t/a
production capacity, under construction unexploited coal of
Zhaizhen Coal Mine accounted for over *0% of entire reserves. Of
which, the seventh and eighth mining area include Zhaizheng
Government, hospital, school, and commercial street and other
buildings with over 4 million tons of recoverable unexploited coal
reserves. Basic
plan: 1 Full gangue (waste rock), raise
chute, conveying, gangue throwing machine filling, tamping filling
body 2. Full gangue (waste rock), raise
chute, conveying, gangue throwing machine filling, grouting full
gangue (waste rock), filling body, curing cementing 3. Full gangue (waste rock) +fly
ash/ cementing material, raise chute, conveying, tamping filling
body, curing cementing Application
achievement: Since implementing filling mining,
Zhaizheng Coal Mine has recovered **0 thousand tons more than wide
belt each year, obtained nearly *0 million Yuan economic benefits
each year, effectively controlled surface subsidence and released a
lot of industrial square unexploited coal resources. Through gangue
filling exploitation, Zhaizheng Coal Mine basically achieves the
requirement that gangue will not be raised out of mineshaft or not
be raised up to mountain.
