The main production processes of feed include feeding, conditioning, granulation, post ripening, puffing, drying, cooling, disinfection, and crushing. The processes of granulation, tempering, drying, disinfection, etc. all require a large amount of steam, so steam boilers are inevitably used in the production process of feed. Wet granulation and puffing are the main stages in feed processing that use steam boilers, which is also known as the granulation stage. zhongde Boiler has served multiple feed production enterprises both domestically and internationally, and has rich project experience in this industry. As we know, the raw materials are quenched and tempered through a quencher during the granulation. Steam is used to raise the temperature of the materials to 80-85 ℃ and the moisture content to about 17%. Then, different particle sizes are formed through the granulation mechanism. In the process of feed processing, steam boilers work in collaboration with dual axis paddle mixers, crushers, vertical dual axis crushers, granulators, conveyors, packaging machines, and more. It has been found that in the past, feed manufacturers mostly chose coal fired boilers based on fuel and operating costs. But with the increasing global environmental awareness, the application proportion of biomass boiler is gradually surpassing that of coal fired steam boiler.

The Philippine feed company that collaborated with zhongde Boiler was established in 2015, mainly engaged in feed processing and sales. Due to production needs, the company plans to add a 15-ton biomass boiler in the factory area to provide stable heat energy for its production line, which is used for feed drying. The SZL series biomass fired chain grate steam boiler from zhongde Boiler was developed and designed by zhongde Boiler's technical team based on various biomass fuel characteristics, combustion rates, numerical simulations, and reasonable arrangement of furnace arches, walls, and heating surfaces. The feed production process of the enterprise generates a large amount of crop waste, and zhongde Boiler's engineers suggest using this waste as fuel for the biomass boiler. This SZL series biomass boiler has a larger furnace space and a reasonable arrangement of secondary air for full combustion compared to traditional boilers, which can effectively reduce NOx emissions. zhongde Boiler's technical team will configure a speed control box for it, which can adjust the speed reasonably based on the biomass combustion rate to ensure fuel burnout and achieve zero CO2 emissions. Moreover, this SZL series biomass boiler not only has a high degree of mechanization and automation, but also has strong adaptability to different biomass fuels, with better energy-saving and environmental protection effects. The picture shows the application site of the boiler: