Rapeseed oil makes large proportion of edible oil market.Rapeseed oil has many food applications. As a salad oil, it is used in mayonnaise, salad dressings, sauces, and marinades. As a cooking oil, it is used for frying in both commercial and home cooking. Rapeseed oil is extracted from cottonseed with Rapeseed Oil Extraction Machine.
1. Rapeseed oil pre-press line：
A. Flow Chart:
Rapeseed→Cleaning →magnetic separator →metering →conditioning→flaking→ pre-pressing→ cake for extraction and crude oil directly for refinery
B. Points for Rapeseed oil prepress plant :
♦ Magnetic separator, vibrating screen ,destoner are used to remove different impurities inside cottonseeds depending on different specific gravity.
♦ Cooking is preparing for pre-press, normally is about 30minutes, 105-110℃
♦ Pre-pressing only part of cottonseed oil, which will save energy consumption.
2.Rapeseed oil Refinery line:
Degumming →Deacidification →Decoloration → Deodorization →edible oil
B. Points for cottonseed oil refining plant
♦ Rapeseed oil refinery can be divided into batch refining (<20t/d), semi-continuous refining (20-50 t/d) and continuous refining (>50 t/d) depending on capacity. For 30-50 t/d , you also can choose continuous refining as your own requirement.
♦ For new harvest cottonseed , the acid value of crude oil is lower and the color is lighter , which is easier for oil refinery. If raw cottonseed is not in good quality after long storage, the acid value will be much higher and color is deeper, then maybe need twice alkali refining .
♦ Winterisation is optional depending on your requirement.O
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