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桓仁铜锌矿向阳坑沿用浅孔留矿法。矿体厚度一般为1～5米,倾角60～80°,矿岩稳固,但矿脉群形态极不规则,矿石品位低。初期普遍采用木漏斗底部结构,其后为节约坑木,曾试验电耙溜井底部结构。因大多数探井不能兼作溜矿井,为减少溜井数目,减少采准工作量和占用矿量,应用了电耙装载台直接出矿,目前比重已接近60％,木漏斗结构减为16.5％。
Huanren copper and zinc deposits to the Yang Yang pit shallow hole retention method. Ore thickness is generally 1 to 5 meters, dip 60 ~ 80 °, ore rock solid, but very irregular shape of the veins, ore grade is low. The initial use of wooden funnel bottom structure, followed by saving pit, had tested the bottom structure of electric rake yard. Since most exploration wells can not double as sloping mines, in order to reduce the number of slips and reduce the workload of quasi-mining and ore occupation, the electric rake loading platform is used to directly mine the ore. At present, the proportion is nearly 60% and the structure of the wooden hopper is reduced to 16.5%.