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按国家计委关于清平磷矿建设工程的要求,新增燕子崖——马家坪矿段年开采能力为150万吨。开采中要将磷块岩和硫磷铝锶矿分采、分运、分选。其中分采是该项建设工程的关键。 硫磷铝锶矿是什邡矿系中特有的矿石种类,是以磷为主兼有多种有用组分的大型沉积矿床。对于此矿床的综合利用,早在几年前,四川省就定为攻关项目进行了研究,现已取得了一定的成绩。近两年来,又找到了低温焙烧的新路子。对清平磷矿建设工程,当前应立即着手拟定分采方案,找出适合分采的采矿方法。 一、开采矿层的地质特征 1.对开采有直接影响的特征 (1)马家坪矿段主要为缓倾斜——倾斜矿体。
According to the requirements of the State Planning Commission on the construction of Qingping Phosphate Mine, the newly-added Yanziya-Majiaping mining section has an annual mining capacity of 1.5 million tons. In mining, phosphorite and parathionite should be separated, sorted and sorted. Separation of which is the key to the construction project. Sulfurite aluminum strontium ore Shifang mine is a unique type of ore, is mainly composed of phosphorus and a variety of useful components of large sedimentary deposits. As for the comprehensive utilization of this deposit, as early as a few years ago, Sichuan Province conducted a study on the research project and has achieved some success. The past two years, they found a new way of roasting low temperature. Qingping phosphate rock construction project, the current should immediately proceed with the development of sub-mining program to find suitable for mining sub-mining methods. First, the geological characteristics of mining 1. Features that have a direct impact on the mining (1) The Majiaping ore section is mainly gentle-inclined orebody.