一、残煤复采的效益因近几十年来开采强度大,且已探明的可采储量均划给国营煤矿开采,铜山县无可供建正规矿井的成块资源。在江苏省煤炭总公司的领导和县境内的国营煤矿支持协助下,近十年来,煤乡人民充分利用当地国营煤矿老区和边角残煤资源,陆续发展了一批乡镇煤矿,在老矿区里“掏耳朵”,边角地带 First, the benefits of residual coal recovery due to the recent decades, mining strength, and proven recoverable reserves are allocated to the state-owned coal mines, Tongshan County, no available for building a regular mine into a block of resources. In the past ten years, under the leadership of Jiangsu Coal Corporation and the support of state-owned coal mines in the county, people in coal townships have made full use of the resources of the old state-owned coal mines and the residual coal resources at the corners to gradually develop a number of township coal mines in the old mines “Dig ear”, the corner