The invention relates to a
straw puffing
machine. A disintegrating guide rod is a double-
helix guide rod, the lead of the disintegrating guide rod is gradually reduced from a feed inlet to a dischargeoutlet, and the bottom
diameter of the disintegrating guide rod is gradually increased from the feed inlet to the
discharge outlet. The outer contour of the disintegrating guide rod is of a cylinder.The bifilar-
helix design of the disintegrating guide rod makes the equipment convey materials stably,
mechanical energy is converted into
heat energy, and heat generated by friction is rapid and uniform. Compared with conventional puffing machines, the
straw puffing
machine has the advantages that compression of the radial force is decreased, the
noise is reduced, the service life of the equipment is prolonged, the materials are discharged smoothly, the yield is increased, and the quality of end products is improved. The disintegrating guide rod of the
straw puffing
machine pushes the materials toward the
discharge outlet along with the gradually shallow
helical line, and the materials rub and squeeze a spiral sleeve to be broken. High temperature and
high pressure are generated during operation, water molecules are rapidly expanded, and the materials are instantaneously sprayed, disintegrated and puffed by a disintegration ring. Compared with the conventional puffing machines, the straw puffing machine has the
advantage that the yield is increased by 30% on the basis of the same power.