甘肃冶金
甘肅冶金
감숙야금
Gansu Metallurgy
2015年
5期
4-7
,共4页
正向爆破%抛掷%出矿
正嚮爆破%拋擲%齣礦
정향폭파%포척%출광
forward blasting%throwing%in mine
简要概述了铅硐山铅锌矿井下开采采矿方法现状、矿体开采技术条件等,针对核部矿体在浅孔留矿法回采结束后,在不增加矿柱和底部出矿结构的情况下,应用正向爆破抛掷出矿技术,有效的解决了核部矿体侧伏角较缓而带来生产安全问题,减少了矿柱和采矿工程量,达到了提高回采率、降低贫化率的效果。
簡要概述瞭鉛硐山鉛鋅礦井下開採採礦方法現狀、礦體開採技術條件等,針對覈部礦體在淺孔留礦法迴採結束後,在不增加礦柱和底部齣礦結構的情況下,應用正嚮爆破拋擲齣礦技術,有效的解決瞭覈部礦體側伏角較緩而帶來生產安全問題,減少瞭礦柱和採礦工程量,達到瞭提高迴採率、降低貧化率的效果。
간요개술료연동산연자광정하개채채광방법현상、광체개채기술조건등,침대핵부광체재천공류광법회채결속후,재불증가광주화저부출광결구적정황하,응용정향폭파포척출광기술,유효적해결료핵부광체측복각교완이대래생산안전문제,감소료광주화채광공정량,체도료제고회채솔、강저빈화솔적효과。
Provides a brief overview of the QianDongShan lead-zinc mine mining situation of mining method and ore body mining technical conditions and for the nuclear part of the ore bodies in shallow hole left ore stoping after, does not increase the pillar and at the bottom of the mine structure, forward throwing blasting application out ore technology, effectively solve the core orebody lateral V angle is slow and bring the safety problems in production, can reduce the amount of pillar and mining engineering.To improve the recovery rate of reducing the effect of dilution rate.