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 Efficient
design of equipment has direct influence on the quality
and yields of oil and meals, as well as ensuring efficient
functioning and maintenance of extraction equipment. Our
government recognised in house R&D Centre has developed
optimal treatment systems tailored to the individual characteristics
of the oilseed to be processed.
These developments have been put to use in actual production
conditions under the philosophy of "maximum profitability
and quality at minimum cost", making them one of
the best available in the international market.
Our pretreatment equipment comprises efficient seed cleaning
units, hullers, hull separators, cracking roller mills,
crushers, flaking roller mills, automatic cookers, screw
presses, expanders and oil clarification equipment.
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 Storage |
 We
manufacture storage facilities for all kinds of raw
material and finished goods. |
| Cleaning |
The first stage in the raw material handling line is
the removal of all dust, lints, sticks, stems, leaves,
sand, stones and other impurities.
Tramp iron pieces are removed by magnetic separators. When foreign particles
like stones having the same size as the seeds need to be removed, special destoning
machines are incorporated in the cleaning line.
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| Decortication |
Hulls are removed from the seeds to increase the
protein content of the meal, to reduce its fibre content
and to increase the effective capacity of the extraction
equipment. Special decorticating and hull separating equipment
is selected according to the type and nature of raw material
to be decorticated. Low oil residue in the separated hulls
is assured.
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| Pre-Pressing |
High oil content seeds (like Rapeseed, Sunflower Seed, Groundnuts etc.) are first
pressed by mechanical as well as through an extruder expander in order to extract
most of the oil prior to solvent extraction, which completes the oil leaching. |
| Grinding,
Cooking & Flaking |
 The
oilseeds are ground to grits and then cooked by steam to
render the cell walls permeable to the flow of oil. The
flaking process opens the cell walls and reduces the thickness
of the grits to a minimum so that the surface exposed to
and in contact with the solvent in the extractor is maximized,
achieving highly efficient extraction. |
| Expanding |
Another process for pretreatment of raw material for direct extraction is expanding.
Rolled and conditioned raw material is compressed in the expander as in a screw
press but no oil is released. The material is forced out of the machine under
high pressure and leaves the die with sudden pressure release. On this discharge
of the material to the atmosphere the oil "boils" to the surface with
the steam which flashes out and makes the expanded collets have an oily, amorphous
and sintered structure. This structure increases considerably the extractability
of the material and results in higher efficiency of the desolventizing processes
of the solvent extraction system.
High oil content seeds like Rapeseed, Sunflower Seeds etc. may be processed in
an expander where some of the oil liberated is allowed to pass out of the expander
through a special drainage cage provided in the expander before the material
discharge. By this arrangement the mechanical screw presses are excluded from
the processing line, and the expanded material having 20- 25% of oil content
is transported directly to the solvent extraction plant. |
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