In recent years, China's copper smelting production increased rapidly, less than a decade, it has rapidly increased from 2.6 million to more than 500 million, according to the production of 1t copper output 2 - 3t slag calculation, the annual output of 10-15 million t of copper Slag, the majority of the existence of residue in the field, it is not only easy to cause heavy metal pollution, but also a huge waste of resources.
Copper mainly in matte or pure sulfide (Cu2S) state exists, zinc in the state of zinc oxide, and silicon dioxide and zinc silicate. Since these valuable metals in the copper slag promote the low-temperature calcination, fluxing and mineralization, it is possible to produce Portland cement by using the valuable components in the copper smelting slag as an iron raw material ingredient for the cement Material, and thus achieve resource utilization of copper slag, and to achieve the purpose of saving energy.

According to experts in the industry research shows that:
1)the use of copper slag as iron raw materials to calcine qualified Portland cement clinker;
2)copper slag cement clinker on the firing and mineral formation has a good role in promoting, Improve the flammability of raw materials, clinker f-CaO content decreased.
3) copper slag ingredients can significantly improve the physical and mechanical properties of cement clinker and improve the quality of clinker. Keywords: clinker; cement clinker; sintering process;
At the same time, copper slag as a raw material for iron production of cement clinker ingredients for the successful supply of a 12000t / d production line in Shanxi. Since the production line put into operation in 2009, production and energy consumption are relatively stable, well-functioning. In 2015, after the use of copper slag instead of iron raw materials, clinker granulation is good, high weight, kiln calcined good, bright flame, no sand, blocking material, crust and other technical accidents, while clinker physical coal consumption fell 12.1 Kg / t, the compressive strength of clinker 28d increased by 2.0MPa, and the power consumption of burning was reduced by 1.15kWh / t, which achieved good economic and social benefits.
At present, the major copper grinding equipment on the market mainly include: ball mill, roller press, vertical mill, and so on. So, how to choose?
In fact, both from the grinding efficiency, the overall investment in equipment, grinding grain size requirements, energy saving and environmental protection,vertical mill are much better than the ball mill!
Great Wall Machinery After several years of human, financial, scientific research and other funds a lot of investment, the introduction of the copper slag vertical mill the grinding process equipment, the equipment focus on improving the grinding capacity and anti-wear performance and other measures, Grinding copper slag to achieve the successful operation of the maximum increase in the copper slag than the surface, reducing the grinding power consumption.
In order to improve the specialization and high-quality service level of the waste residue grinding project, the chaeng introduced "one vertical mill, Eight services", that is to say customers can enjoy raw materials testing, project design, equipment manufacturing, installation and commissioning, project acceptance, staff training And other eight services, allowing customers to choose rest assured that the use of peace of mind, make money Shuxin.
Up to now, the chaeng has accumulated in the domestic and international construction of the 100 slag production lines, slag powder into the real industry leader!