--  Widely used in cooling for expanded feed, particles and powder.
      --  According to the principle of countercurrent cooling, it can effectively cool high temperature and high humidity particles, can effectively prevent surface cracking of particles.
      --  With a bulk material mechanism, it can ensure uniform distribution, make the material layer height in the cooling bin consistent, and the cooling effect is good.
      --  According to different material characteristics and process requirements, can select different kinds of discharge methods, such as sliding valve type, pendulum type and impeller type.