Development direction of rotary furnace technology in China:
Utilize specific problems in enterprise applications to make necessary modifications in a timely manner ? Promote kiln development with innovative thinking and new technologies
The calcination process of the rotary furnace needs further optimization ? Adjust the calcination process based on changes in the composition and time of the fired product ? Emphasize comprehensive technical assembly and matching When the rotary furnace calcines some materials ? Sealing is a very important condition ? Without a certain amount of protective gas and pressure ? The material cannot guarantee the basic quality and requirements after calcination. Currently, most of these kilns adopt mechanical sealing methods ? Choose flexible graphite as the sealing material. But this type of sealing method is not ideal ? Complex structure ? Inconvenient maintenance ? High consumption of sealing materials ? The cost is relatively high. Further innovation in ideal sealing methods and materials is a top priority Develop automatic continuous temperature detection and automation technology for rotary furnaces ? Implement when detecting various signals ? Automatically based on material status ? Capable of automatically controlling the calcination time, rotating direction of the converter, and adjusting the height. In this regard, the experimental and small rotary furnaces of the Thermal Equipment Center of Xianyang Ceramic Research and Design Institute have made beneficial attempts The rotary furnace has existed as a conventional kiln type for over a hundred years ? But both are large or super large ? Mainly used for primary rough processing of powder or mineral materials ? For example, in the burning and calcination of cement clinker; Preparation of titanium dioxide powder from kaolin ? Processing in the rare earth industry, etc. Although the production is large ? But there is a significant temperature difference ? Low temperature control accuracy ? Disadvantages such as inability to seal and achieve precise atmosphere control
