Solvent extraction is the process to ensure extraction of oil from solvent or crude i.e, Soyabeans, sunflower,cotton seeds,
rapeseeds, peanuts, canola, rice-bran, palm kernel etc.Solvent Extraction Plants are employed to perform the operation - that is to extract
oil directly from sunflower seeds, peanuts, cotton seed, palm kernel, canola,
copra, castor and others. These are usually fitted with with drum shaft, brush shaft and mesh
cleaning arrangement. Oil extraction usually starts from soybean seed oil
preparation that must be dehulled,
cleaned, and dried before sending to the next extraction process.
Solvent extraction process comprises:-
1) Preparation of seeds for extraction
2) Desolventising
3) Distillation
In the soybean oil
extraction for example , the soybeans must be cut into flakes and then passed
through a percolation extractor before
being immersed with a solvent.Oil refining
is another step in the soybean oil
processing. This is because oil obtained
by pressing or solvent extraction process always contains impurities such as
phospholipids, FFA, pigment, off-flavor and other impurities. The oil is
made edible by elimination of the impurities through a process is called "Oil
Refining".
Solvent
extraction plant comprises of:
●
Seed Preparation: Roller mill / Flaking mill /
Cooker-Conditioner / Expander-Extruder
●
Roller Mill: for
preparation of oilseeds prior to direct solvent extraction.
●
Cookers-Conditioner: Custom Designed to condition
the seed for better extraction through
heating and optimising moisture
content
●
Flaking Mill: In built smooth rolls suitable for flaking oilseeds or
cakes prior to solvent extraction.
THE PROCESS
The Horizontal
model comprising of articulated band conveyor assembly is fed the CRUDE from the Feed Hopper and transport at a very slow predetermined speed.This
moves from the feed to the discharge
end. The conveyor rides over the rails fitted
inside the Extractor and on specially constructed sprocket at either
end. A customized adjustable damper is
fitted for height adjustment of the bed
of material on the chain conveyor. A
series of Spray breakers for the perfect spray of the solvent is also
present on the moving bed, with
provision for sight glasses. The Band Conveyor Assembly is custom designed to act as filter bed for eliminating
the fines.To efficaciously clean the
mesh, it is replete with rotary brushes & mesh cleaning
system .
THE MECTECH
ADVANTAGE
MECTECH's belt type horizontal extractor, desolventizing toaster,
distillation system and heat recovery system are custom designed to optimize
efficiency. Long years of experience & expertise enables us to design
maximum efficiency in order to ensure
the finest performance in terms of quality
of oil, quality of DOC, consumption of utilities and hexane loss.
Soybean The soybean oil
plant is a version of seed processing plant. In order to process quality
soybean oil, a series of soybeanoil processing machinery will be involved.
The strides made in solvent extraction
technology are going to have a far-reaching effect on the extraction scenario -
thanks to MECTECH.Following the shifting trends towards continuous type
extraction this company has so modified the present state of extraction
equipment that hexane loss is just minimal.
