渣浆泵抽铁矿石性质
    该矿为矽卡岩型白钨多金属硫化矿。主要有用矿物是方铅矿、闪锌矿、黄铜矿、白钨矿和萤石。主要脉石矿物是石英、方解石、钨铁辉石、石榴子石、透闪石和阳起石。有用矿物呈细粒不均匀嵌布，方铅矿多呈脉状和块状产出，粒度一般为0.16~0.25mm,常交代磁黄铁矿或闪锌矿。闪锌矿与黄铜矿紧密共生，粒度一般为 0.1~ 1mm;磁黄铁矿常以闪锌矿的包体产出:黄铜矿呈中细粒嵌布，粒度一般为0.05~0.1mm,多交代磁黄铁矿或闪锌矿。白钨矿与硫化矿物紧密结合，粒度一般为0. 1~0.2mm,常产于钙铁辉石中。

银的独立矿物为螺状硫银矿，少量是深红银矿、含银硫铋锑铅矿。银与金属硫化物关系密切，且绝大多数呈显微粒状嵌布于方铅矿中。分布于硫化矿物及脉石矿物中的银占78. 06%，呈游离银矿物存在的银仅占21. 94%。
(2) 选矿工艺
    流程如图4.10所示。磨矿细度一0.074mm占65%。银60%以上富集在铅精矿中，在铜精矿中的银约占5%，锌精矿中的银只占2%左右。
(3)浮选药剂
    碳酸钠3000g/t,氧化钠25g/t,硫酸锌230g/t,硫酸铜150g/t,亚硫酸钠80g/t, 丁基铵黑药235g/t, 重铬酸钾300g/t, 丁基黄药180g/t,石灰1000g/t,松醇油5g/t,水玻璃8000g/t氧化石蜡皂850g/t。
(4) 技术指标
    ①原矿品位: Ag115g/t, Cu 0.10%，Pb1.43%，Zn1.01%，WO3 0. 30%。
    ②铜精矿品位: Ag1985g/t, Cu 20.66%;回收率: Ag4. 96%，Cu 60. 05%。
    ③铅精矿品位: Ag 3206g/t, Pb 56.07%;回收率: Ag62.42%，Pb 87. 93%。
    ④锌精矿品位: Ag154g/t，Zn 46. 96%;回收率: Ag2.21%，Zn 76. 63%。
    ⑤钨精矿品位: WO368. 3%;回收率: 79. 15%。

Properties of iron ore pumped by slurry

The ore is skarn type scheelite polymetallic sulfide ore. The main useful minerals are galena, sphalerite, chalcopyrite, scheelite and fluorite. The main gangue minerals are quartz, calcite, wolframite pyroxene, garnet, tremolite and actinolite. The useful minerals are unevenly distributed in fine grains, and galena is mostly vein and massive, with the grain size of 0.16 ~ 0.25 mm, often replacing pyrrhotite or sphalerite. Sphalerite is closely associated with chalcopyrite, with a grain size of 0.1 ~ 1 mm; pyrrhotite is often produced as inclusion of sphalerite; chalcopyrite is distributed in medium and fine grains, with a grain size of 0.05 ~ 0.1 mm, mostly metasomatic pyrrhotite or sphalerite. Scheelite is closely associated with sulfide minerals, and its grain size is generally 0.1 ~ 0.2mm. It often occurs in augite.

The independent minerals of silver are spiral chalcopyrite, a small amount of which are crimson silver ore and silver bearing bismuth antimony lead ore. Silver is closely related to metal sulfides, and most of them are embedded in galena in the form of particles. The distribution of silver in sulfide minerals and gangue minerals accounts for 78.06%, and that in free silver minerals only accounts for 21.94%.

(2) Mineral processing technology

The process is shown in Figure 4.10. The grinding fineness - 0.074mm accounts for 65%. More than 60% of silver is concentrated in lead concentrate, about 5% in copper concentrate and only about 2% in zinc concentrate.

(3) Flotation reagent

Sodium carbonate 3000g / T, sodium oxide 25g / T, zinc sulfate 230g / T, copper sulfate 150g / T, sodium sulfite 80g / T, Butyl Ammonium black agent 235g / T, potassium dichromate 300g / T, butyl xanthate 180g / T, lime 1000g / T, terpineol oil 5g / T, sodium silicate 8000g / T, oxidized paraffin soap 850g / T.

(4) Technical index

① Raw ore grade: Ag 115g / T, Cu 0.10%, Pb 1.43%, Zn 1.01%, WO 3 0.30%.

② Copper concentrate grade: ag1985g / T, Cu 20.66%; recovery: ag4.96%, Cu 60.05%.

③ Lead concentrate grade: Ag 3206g / T, Pb 56.07%; recovery: Ag 62.42%, Pb 87.93%.

④ Zinc concentrate grade: ag154g / T, Zn 46.96%; recovery: ag2.21%, Zn 76.63%.

⑤ Tungsten concentrate grade: wo368.3%; recovery: 79.15%.