Virtually all scrap copper can be regenerated. The regeneration process is simple. The collected scrap copper is first sorted. The same is not contaminated scrap copper or alloy components, can be recycled directly after melting; heavily polluted copper refining to further remove impurities; intermixed for a copper alloy scrap, after melting component adjustment is required. Through such a regeneration treatment, the physical and chemical properties of copper are not impaired, so that it is completely renewed. The recycled waste copper should be treated in a two-step process. The first step is to dry and burn off organic oil such as oil and grease. The second step is to smelt the metal and remove the metal impurities in the slag.
Since scrap copper can be regenerated, it has a higher value. For example, the price of clean Grade 1 scrap copper can reach more than 90% of the price of new refined copper; the price of new brass scrap can reach more than 80% of the corresponding brass price.
The world's waste copper processing technology and equipment form the advanced treatment process of waste copper in the tilting furnace fire refining process plus ISA electrolysis process. West Germany Refinery (NA) Huteng Weike Kaiser Factory (HK) is currently the world's largest and most advanced waste copper refinery, using a tilting furnace (350t / f) and a reverberatory furnace (200t / f The waste copper is treated and the cathode copper is produced by the ISA process (DK=313A/m ² ) with a production capacity of 170,000 t/a. American scrap copper recycling process.
Compared with the advanced recycling treatment technology in foreign countries, the pretreatment and recycling technology of waste copper and the overall level of equipment are backward, and the pretreatment and recycling of waste copper are decoupled. Dismantled to the complete copper-copper factory of cathode copper refining, the waste copper refining factory has many small scales, backward technology, poor equipment and serious environmental problems. There is no modern copper refinery factory or workshop in China. These factories are generally in the scale of 0.5-30,000 tons. The refining method mainly uses reverberatory furnaces. The furnace can vary in size from 25 to 110 tons. The furnace has low thermal efficiency and high energy consumption. The black dust pollution during the reduction operation is serious. High intensity. The product quality can only reach or even lower than the standard cathode copper level in the GB/T467-1997 standard. A considerable amount of high-grade scrap copper is directly produced into copper wire ingots and copper "black bars" without refining.
Jiangxi Copper, Yunnan Copper, Tongling, Daye and other large copper enterprises mainly dealing with copper concentrates will also intensify the competition of domestic waste copper raw materials, and impact small and medium-sized waste copper enterprises. Jiangxi Copper will introduce advanced The tilting anode furnace establishes a special copper processing workshop as an important measure to realize the company's 15th overall plan.
China's waste copper recycling and processing industry must take the road of healthy development of technological progress.

Refrigeration Equipment

Refrigeration equipment is mainly used for food refrigeration, all kinds of cargo refrigeration and summer air conditioning. According to the working principle, it can be divided into compression refrigeration equipment, absorption refrigeration equipment, steam jet refrigeration equipment, heat pump refrigeration equipment and electric heating refrigeration equipment.

Refrigeration Equipment,Stainless Steel Mini Fridge,Mini Fridge,Supermarket Refrigerator Equipment

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