The production of rubber outer layer of the wire and cable must through a vulcanization process, and the vulcanization process needs steam from boilers to heat and pressure the rubber. Anhui Cable Group is an enterprise specializing in the production of wire and cable. It mainly produces and operates 1E class K2, K3 and non-1E medium voltage power cables, various types of flame retardant and refractory special cables. In 2015, the principal of Anhui Cable purchased 4 tph SZS condensing gas-fired boiler in ZOZEN boiler to provide steam for rubber vulcanization. The steam temperature was required to be between 140-180℃. After vulcanization, the natural cooling was performed, opened the valve, the steam condensate in the pipeline will go directly into the cooling pool. After steam cooling, fresh water can be added to the processed of drawing, annealing, water sealing, extruding, extruding rubber, mixed rubber, desulfurization and dust removal, which saves a lot of production water for the company. In addition, ZOZEN’s boiler adopts high-quality aluminum silicate fiber and equipped with fire-resistant mud insulation. The temperature of boiler body can be controlled below 45℃ to effectively control heat loss.
The condensing gas-fired steam boilers installed by ZOZEN for us can use clean energy and natural gas as fuel. Compared with coal-fired boilers, they can significantly reduce the amount of air pollutants and operating costs.
— Anhui Cable Group Co., Ltd.
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