Coated sand coated sand production method, mixed anatomy experienced dry mix, cold coating method, temperature coating, thermal coating method four stages of regeneration coated sand production line manufacturers, the coated sand production is almost are based on thermal coating method. Thermal coating process is first heated to a certain temperature, the original sand coated sand regeneration, and then separately with resin, Wuluo off the product solution and calcium stearate coated sand regeneration mechanical mixing, cooling from crushing and screening . Due to differences in formulation, blending process is different. At present, domestic species, many coated sand production line, hand-feeding of semi-automatic production lines, about 2000 to 2300 coated sand regeneration manufacturers, computer-controlled automatic production line also has nearly 50, to effectively improve production efficiency and product stability. In the coated sand production areas should be strengthened following two aspects: (1) hair coated sand pollution, mainly from the following aspects: ① to reduce the amount of resin and curing temperature; ② coated sand to improve the overall performance, especially ③ strengthen pollution research phenolic resin substitutes; high temperature performance;. (2) increase the regenerative capacity of coated sand coated sand coated sand production equipment package recycling has been a topic of concern for the majority of experts, the current coated sand regeneration equipment is expensive and regeneration efficiency is not high, productivity is 5 tons / hour The thermal regeneration equipment prices in the 1200-1600 yuan, coated sand regeneration cost 65-90 yuan / ton, so the cost can not be covered for domestic foundry sand reclamation equipment companies _ Qingdao Heng (Certified ) _ Tianjin coated sand regeneration provided by Heng Machinery Co., Ltd. Qingdao. Qingdao Heng Machinery Co., Ltd. (www.thjidian.com) is Qingdao, cleaning, cleaning equipment leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Qingdao Heng led the staff warmly welcome all inquiries negotiations to create a better future Qingdao Heng.