| 摘要 |
PURPOSE: A preparation system of thermoplastic polyurethane powders is provided to maximize the simplification of a system and the efficiency of pulverizing while minimizing the consumption of liquid nitrogen. CONSTITUTION: A preparation system of thermoplastic polyurethane powders comprises: a hopper(10) for raw materials storing thermoplastic polyurethane; a low-temperature grinder(20) which cools the thermoplastic polyurethane by liquid nitrogen and pulverizes the thermoplastic polyurethane to have the predetermined particle size; a vibration screen(30) for separating and passing the thermoplastic polyurethane; a dryer(40) for drying the thermoplastic polyurethane powder passing through the vibration screen; and a vibration separator(50).
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