Anping County Dinghe Wire Mesh Co., Ltd. / 2022-07-04
=== Base Info ===
=== Description ===
Extractor type: Rotocel extractor, loop extractor, chain extractor.
Specification: 50-5000T/D
Suitable materials:Flakes,expanded materials or pressing cake from prepressing plant.
1.Working principle of rapeseed oil extraction machinery:
Oil extraction process is a kind of making oil method utilizing the character that oil in oilseeds dissolves in selected solvent and diffuse together.It is a mass transfer process,also used in chemical operation.Evaporate and strip mixture of oil and solvent according to different boiling points between volatile solvent and non-volatile oil, make solvent vaporization into gas and separate from oil to get crude extracted oil.Solvent can be recycled after condensation.There is some solvent in meal,it needs drying to recover and get dry meal.
2. Extraction Process of vegetable oil extraction machinery:
Soybean flakes, expanded rice bran pellets or pressing cake from prepressing plant is conveyed to extractor through feed hopper with material level controller,and moves into curved section together with chain, spray it with miscella with diminishing concentration in moving process, miscella falls down into miscella collection hopper through the gap of grid tray, then pump it out and spray pressing cake again and fall down into the second miscella collection hopper,pump the miscella out into cyclone hydraulic separator through concentrated miscella pump to remove powder impurities and then enters evaporation system. Before materials enter draining section, spray it with fresh solvent again,drained wet meal discharges from the outlet of meal and enters wet met scraper conveyor.
2.1There are twice reversal in the whole extraction process,it's beneficial for the uniformity of solvent and miscella to material layer; low material layer extraction is beneficial for quick permeation and draining of solvent and miscella,shorten extraction time;reduce residual solvent rate and residual oil rate in meal, loop extractor is dismountable, convenient for transportation;feeding material and discharging meal are uniform and continuous, beneficial for pressure stabilization of the whole system,with advantages of low power consumption, stable operation, no noise, low maintenance cost.
2.2 Feeding system has material level controller according to feeding capacity, make feed hopper keep certain material level all the time,beneficial for forming micro negative pressure in extractor, reduce solvent leakage.
2.3 Advanced miscella circulation theory design is beneficial for reducing input of fresh solvent, reducing residual oil in meal, improving miscella concentration, achieve energy-saving purpose through reducing evaporation capacity.
2.4 Especially suitable for all kinds of prepressing cake extraction.
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