Soy Extrusion Plant Low Fat

Description

As part of our full systems’ line – ABC Hansen has developed a low fat soy bean extrusion line, with capacities between 500kg and 1000kg/hr

The plant flow is as follows:
-Soy beans are received into a triangular reception bin
-The soy beans are then conveyed to a Quaill I eccentric grain cleaner via an auger.
-From the cleaner the soy beans are conveyed to the destoner to remove stones and heavier material, and to also aspirate the product before milling.
-The cleaned soy beans are then fed into a 200mm roller crusher – to mill down the soy beans to a size that the extruder is able to handle – usually particle sizes no larger than 3mm each.
-The milled beans are then conveyed to a buffer silo with a capacity of 1200liters. The buffer bin is fitted with a vibration motor, to prevent bridging in the silo when unloading.
– The hopper bin is unloaded by speed controlled augers – fitted with a variable frequency drive into the extruders.
– The extruder then receive the milled soy beans, and extrude them, by forcing them into a confined space with a screw mechanism, thereby creating high pressure and high pressure in the extrusion chamber, resulting in the breakdown of the trypsin inhibitors in the soy beans – improving the digestibility of the product, resulting in what is known as full fat soy (FFS)
– The extruder then discharges the extruded soy beans into a screw conveyor, which directly conveys the hot Full Fat Soy to the Oil expellers
– The expellers then expel the oil from the FFS (final oil content in the resulting oil cake is in the region of 5%-6% after expelling)
– The resulting low fat oil cake – also known as mechanically defatted soy meal – is then expelled from the expellers, and the cake sheaves are broken in a cake breaker conveyor, and the broken cake is conveyed to a hammermill to be milled down to below 2mm particle size.
– The oil from the expellers are decanted into a oil collecting bin for a first settling – and is then pumped to an elevated plastic oil tank.
– The plastic oil tank gravity feeds into a centrifugal filter which separates most of the solid particles from the oil.
– After being centrifuged – the oil is then passed through a filter press where the oil is then filtered through a 10micron (6 micron available optionally) filter material – to produce a clear, clean oil – ready for consumption or for further refining.

All processes are controlled from an included motor control centre (Motor control centre)

Total power consumption: 165KW / 350AMP / 200KVA
Total floorspace required: 125m²
Minimum roof height required: 4.25m