Small scale palm oil refining machinery for 1-80 TPH
The process before oil refining is extraction,oil leaching is advantageous to oil refining.
Leaching is divided into three types :
1. Towline extractor : The amount of processing is 7000T/D .
2. Ring extractor : The amount of processing is 3000T/D.
3.Rotocel extractor: The amount of processing is 1500T/D.
The towline extractor working principle of leaching :
1. After pretreatment of the oil into the leaching, solvent (n-hexane) will be sprayed on the surface of the oil in the oil, most of the oil will be solvent extraction.
The oil concentration of the first funnel is relatively high, generally 60%-65%. Oil is directly pumped.
2. Oil after the second funnel, solvent will again sprayed on oil, again leaching, oil concentration and mixed oil obtained by solvent content is lower, more and more high.
3. Oil is shipped out extractor.
After leaching will get two products :
1. Mixed oil (oil and solvent) : Mixed oil first enters the first evaporation equipment, steam enters from the equipment below, mixed oil and steam full contact. The first evaporation in 0.006-0.08Mpa negative condition. The oil temperature is 105-110 C. Then enter the second evaporation, the same process.
2. The cake containing solvents : Solvent containing cake steamed into the offline, two layers of steaming offline is preparing to break free, full and cake contact, indirect heating of cake, then is Breathable layer -- desolventizing layer -- drying layer -- cooling layer
The last step leaching :
Steamed out of the solvent into the condenser for cooling, cannot be condensed gas into paraffin recovery system, and then enters the analytical column to paraffin absorption solvents, gas separation.
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