论文部分内容阅读
杨庄煤矿简介杨庄煤矿于1958年破土兴建,1961年简易投产,年设计能力51万t,核定生产能力55万t,附有一座年入洗原煤60万t的洗煤厂。1978年由上组煤水采转为下组煤早采,生产方式采用走向长壁后退式,现年均产量在60万t以上。全矿固定资产总值达...
Yangzhuang Coal Mine Brief Introduction Yangzhuang Coal Mine broke ground in 1958 and was briefly put into operation in 1961 with an annual design capacity of 510,000 tons and a verified production capacity of 550,000 tons. It is equipped with a coal washing plant that can annually wash 600,000 tons of raw coal. In 1978, the coal from the previous group was converted to coal for the next coal group for early mining, and the production mode was retrograded towards the long wall. The annual average output is above 600,000 t. The total value of fixed assets up to ...