Crushing section processes oilseeds raw materials into moderate size particles. It prepares for pre-press cake of oil press machine. The moderate size cake creates good condition for oil extraction and secondary oil pressing process.The requirements of crushing:particle size should be uniform; no oil, not a group;powder is smaller.
Seeds with a high oil content, like rape seed and sunflower seed, are usually mechanically pressed in expellers after a preheating step in indirectly heated conditioners. The expeller cake (or pressed cake) will then be further treated in the extractor, since it might still content up to 18 per cent of oil. In some cases the expeller cake is not further extracted but after deep expelling sold as such for feed purposes.
The expeller works as follows: the oil bearing material is fed into one end of a cylinder within which a power-driven worm conveyor forces the material to the other end of the cylinder and out against resistance. The pressure exerted in the process squeezes out the oil.
Crushers for oil press machine processing line commonly contains dental plate crusher, roll crusher, and hammer crusher.
The requirements of crushing:particle size should be uniform; no oil, not a group;powder is smaller;
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