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开滦 (集团 )有限责任公司范各庄矿业分公司利用井下排出的煤矸石经堆积自燃氧化后形成的陶粒加工井下喷射混凝土轻集料 ,替代原来的石灰岩碎石集料 ,经几年的研究与应用 ,取得了可观的经济效益和明显的社会效益 ,为煤矸石的利用找到了一条新途径。
Kailuan (Group) Co., Ltd. Fan Gezhuang Mining Branch underground coal gangue discharged by the accumulation of spontaneous oxidation and oxidation of the formation of ceramic processing of underground shotcrete lightweight aggregates to replace the original limestone aggregate, after several years Research and application, has achieved considerable economic benefits and significant social benefits, for the use of coal gangue to find a new way.