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Ningxia Jinhua Chemical Co., Ltd. was established in December 2010 and covers an area of ??220,000 square meters. It is located in the "Northwest Industrial Town"-Hebin Industrial Park, Ningxia Shizuishan Economic and Technological Development Zone, adjacent to Baolan Railway, National Highway 109, East The Lugang Wharf (land port of Huinong District) near the northwest is convenient for transportation and transportation. Jinhua Chemical Co., Ltd. was established on the basis of the acquisition of the former bankrupt Ningxia Xiyulong Chemical Co., Ltd. and Ningxia Longze Chemical Co., Ltd., mainly producing and operating calcium carbide, acetylene black, lime nitrogen, dicyandiamide, monocyanamide , Calcium carbonate and other products. The technical equipment is equipped with 3 25500KVA sealed calcium carbide ore furnaces, 1 27500KVA sealed calcium carbide ore furnace, with a total design capacity of 200,000 tons of calcium carbide annually; a set of Φ4.0m × 60m lime rotary kiln production line, Φ3.2m × 40m lime rotary One set of kiln production line, designed to produce 300,000 tons of activated lime annually; one set of Φ3.2m × 13m blue charcoal drying kiln, designed to produce 120,000 tons of dried blue charcoal annually; carbon black branch plant, designed to produce acetylene carbon black 1.2 10,000 tons; designed annual output of 300,000 tons of calcium carbonate; designed annual output of 50,000 tons of lime nitrogen, 20,000 tons of refined dicyandiamide, and 15,000 tons of monocyanamide. After several large-scale technological upgrades and transformations, the process, production equipment, energy saving and consumption reduction, safety and environmental protection, automation level, and cost reduction have been significantly improved. The reformed calcium carbide furnace gas will be fully utilized, fully utilize the calcium carbide furnace gas waste heat to dry the blue charcoal and pass into the rotary lime kiln to replace coal-fired calcined whit