Oilseeds cleaning section ensures high quality oilseeds for pretreatment and oil press machine processing.Cleaning is important for the pretreatment process, as larger impurity maybe lead to material blockage to etch the equipment, shorten equipment life and reduce the design efficiency, so it need to remove the large impurity by cleaning sieve, and remove the metal impurity through magnetic selector.Oilseeds limited impurity content after cleaning up is as below:
Screening. Screening utilizes the difference between size of oil and impurities to make high efficiency separation of impurities by sieve hole. Screening equipments are available with fixed screening, vibration screening and rotation screening.
Winnowing. Winnowing utilizes the suspended speed difference between oilseeds and impurity to remove impurities by wind. Winnowing can clean light impurities and dusts, parts of heavy stones and clods and other impurities. Winnowing is applicable for cleaning of cottonseeds and sunflowers. Wind selector contains suction and blowing types.
Magnetic separator. It uses magnetic to remove metal impurities inside oilseeds.Oil plant commonly used magnetic separation device in two ways: permanent magnet permanent magnet drum and barrel.
Water.Rinsed in water for use in direct contact with the oil, to wash away the oil adhered to the surface of the mortar and a specific gravity sedimentation rate in water of different materials ranging from the principle of the fuel while the gravel, sand, heavy metals, etc. remove impurities, and side by side in the mud can loose the action of water infiltration into the wash water will be fine, the use of water can also be effective in preventing dust flying.
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