Project background

The drying, rolling and vulcanization processes of production in rubber industry all need large amount of steam. Dongrun Special Rubber Co., Ltd. is one of the most professional industrial rubber production bases in our country. It produces special rubber sheets, rubber sheets for industrial use, anti-skid fitness series and rubber seals for sluice gates. It has complete specifications and over 10,000 varieties. This time we are particularly careful in purchasing boiler, especially the steam boiler efficiency, Dongrun put forward very strict requirements. ZOZEN boiler manufactures 4 tph DZL coal-fired steam boiler for Dongrun.

The boilers belong to the horizontal three-passes water & fire tube chain grate boiler, which can use mean-quality bituminous coal and anthracite. Thread smoke pipe is also a high-efficiency heat transfer element researched by ZOZEN for many years. Its heat transfer coefficient is 1.8 times higher than that of ordinary smoke pipe.

Customer feedback

ZOZEN provided Dongrun with three-passes steam boiler with full combustion of fuel and high thermal efficiency. The boiler is packaged, simple in size, cost-saving in infrastructure investment, the mechanization of adding coal and discharging slag has reduces the investment in our labor costs.

-- Nanjing Dongrun Special Rubber Co., Ltd.

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