本機能均勻、連續地將粉狀、粒li狀zhuang或huo小xiao塊kuai狀zhuang的de物wu料liao喂wei送song到dao下xia一yi道dao設she備bei中zhong
，給gei料liao能neng力li可ke通tong過guo改gai變bian下xia料liao套tao筒tong的de高gao度du和he卸xie料liao刮gua板ban的de位wei置zhi來lai調tiao整zheng。當dang采cai用yong調tiao速su電dian動dong機ji或huo直zhi流liu電dian動dong機ji傳chuan動dong時shi，還hai可ke通tong過guo改gai變bian電dian動dong機ji的de轉zhuan速su來lai調tiao整zheng給gei料liao量liang。