SKRIPSI S-1 TEKNIK MESIN, Januari : 2000

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MESIN PENGHANCUR SEKAM PADI HAMMER MILL PEMILIHAN DAN PERENCANAAN TRANSMISI SABUK-V

Andry Wijaya

Abstract


The hammer mill is used for a variety of size-reduction or grinding jobs. Besides feed preparation, it is used pulverizing limestone and the ingredients for commercial fertilizers. It also has many industrial applications. A hammer mill consists esentially of a rotating beater and a heavy perforated screen. The material is introduced into the housing, and the beater, which consists of a series of hammer turning at 1500 to 4000 rpm, beats and pounds the material until it is small enough to pass thought the screen at the bottom. The hammer mill is assumed to reduce size by impact. The advantages of the hammer mill are simplicity, versatility, freedom from sigficant damage due to foreign object, freedom from damage when operating empty, Hammer wear does not materally reduce its efficiency. Disadvantages may be inability to produce a uniform grind, high power requirements.

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