From 2014, Baoji City began to implement natural gas projects and vigorously implemented coal-to-gas conversion projects. Baoji Cigarette Factory is one of the major backbone enterprises of the China National Tobacco Corporation and is the largest cigarette manufacturer in the northwest region. In line with the environmental protection policy, Baoji Cigarette Factory implemented the "coal to gas" project. Through bidding activities, it cooperated with ZOZEN boiler to dismantle 35 tons of coal-fired boilers and install 25 tons of SZS gas-fired steam boilers to improve boiler operation levels and reduce air pollutant emissions.
In the process of tire manufacturing, rubber mixing and vulcanization are two indispensable processes. Many tire factories generally build or use heating boilers of other companies in order to provide high-temperature steam for tire vulcanization. In order to meet the needs of production, Sentury Tire (Thailand) Co., Ltd. believes that the SZL series biomass-fired boilers of Zozen Boiler are superior to those of other companies in terms of fuel efficiency and energy saving. At the same time, the ZOZEN technical team also designed a speed control box with a reasonable speed according to the burning rate, and established different numbers of independent wind bins according to different tonnages to ensure that the fuel is fully burned. In the end, Sentury Tire (Thailand) Co., Ltd. purchased 2 sets of 20 t/h biomass-fired steam boilers at Zozen.