Copper is a typical sulphur-rich element. It mainly forms sulfides in nature. It forms oxides under strong oxidizing conditions and forms natural copper under reducing conditions. At present, more than 250 kinds of copper minerals and copper-containing minerals have been found on the earth's crust, mainly sulfides and their similar compounds and copper oxides, natural copper and copper sulfates, carbonates, silicates. Classes and other minerals. Among them, there are 16 kinds of industrial mineral raw materials that can be adapted to the current conditions of metallurgy. The natural elements: natural copper (containing nearly 100% copper); copper sulfide: chalcopyrite (including copper 34.6%, brackets refer to copper content, the same below), copper ore (63.3%), Hui Copper ore (79.9%), copper blue (66.5%), chalcopyrite (23.4%), beryllium copper (46.7%), arsenic antimony ore (52.7%), Sulfur-arsenic copper ore (48.4%); copper oxides: cuprite (88.8%), black copper (79.9%); copper sulfate, carbonate and silicate minerals: Malachite (57.5%), azurite (55.3%), chrysocolla (36.2%), water cholesteric (56.2%), chlorite (59.5%).
At present, the raw materials for copper smelting in China are mainly chalcopyrite, chalcopyrite, porphyrite, malachite and so on. According to the technical conditions of the metallurgy, the copper ore is divided into three natural types by the ratio of copper oxide and copper sulfide. That is, sulfide ore, containing less than 10% copper oxide; oxidized ore, containing more than 30% copper oxide; mixed ore, containing 10% to 30% of copper oxide.
China's copper mineral raw materials have the following characteristics:
1) Copper mineral raw materials suitable for smelting and production, occurring in various deposit types. Among them, the types of deposits with important mining value: magmatic copper- nickel sulfide deposit, porphyry copper deposit, skarn copper and polymetallic deposit, hydrothermal vein copper deposit, volcanic-deposited massive sulfide Type copper deposits, sedimentary layered deposits, and the like.
2) complex ore texture and structure, unevenness disseminated grain size, non-uniform multi disseminated ore particle, even many mineral compositions, fabric disseminated fine, complicated, more difficult mineral stone.
3) The ore has various chemical components, and it has many beneficial and harmful components associated with it. The process conditions of the metallurgy are complicated. At present, most of the mines developed are comprehensive copper deposits, with a variety of beneficial and harmful elements. Through comprehensive mining, comprehensive utilization, change harm to benefit, turn waste into treasure.
Sedimentation Tank
Inclined plate sediment tank is kind of high efficient combined type settling tank; set many dense inclined tube packing in sediment area, to make the suspended impurity in water sediment, water rise flow along inclined tube, the separated sludge down to the tank bottom along the inclined tube by gravity, then discharge it in concentration. Such tank can improve sediment efficiency 50~60%, it can improve treatment capacity 3~5 times in the same area. It can design different flow rate inclined plate sediment device according to raw waste water test report, it need dose flocculant usually.
Inclined plate sediment water purifier is format by install 60° dip angle inclined tube above the sludge suspended layer, to make the suspended solids or floc alum flower by dosing flocculant accumulate into thin sludge later in inclined tube downside superficial area, slide back to sludge suspended layer rely on gravity, then settling in sludge collecting hopper, discharge into sludge tank by sludge pipe for separate treatment or comprehensive utilization. The supernatant fluid gradually rise to water collecting pipe discharge or reuse.
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