| 摘要 |
1,067,096. Pelletizing hay. MASSEYFERGUSON Inc. June 2, 1964 [June 12, 1963], No. 22699/64. Heading A2B. Hay is wafered by compressing it and passing it through a series of annularly arranged die cells, heating the first part of each die cell to above 300‹F., and cooling the second part thereof, so obtaining extrusions having a relatively dense thin bonded outer skin and a relatively less dense interior. The annular series of die cells is rotated step by step past the hay compression means, which operates in synchronism to force hay into the die cells successively. As shown, hay is fed, by rotating helix 82, into the compression device 78 whose plunger 84 operates intermittently to force hay into the bottom one of a rotatable annular series of die cells 28. The first part of each die cell 28 is heated, e.g. by thermostatically controlling electric heaters 38. The second part of the die cells 28 project into a stationary cooling device 44 into which air is blown by fan 58 and leaves at 52, the sides of the die cells being perforated to facilitate cooling of the wafers. As the wafers are finally extruded from the ends of the die cells they are deflected by plate 58 so breaking the wafers into short lengths which leave by shoot 60. Alternative methods of heating and cooling are described. |
