Steam at the plant is used on the mixed feed during the conditioning process before final pelletisation and packing. Conditioning at an elevated temperature allows the gelatinisation of starch to begin and this means that more nutrients can be digested. The steam also lubricates the mix to maximise the throughput and extend the life of the pelletiser die.
The Clayton Steam Generator is a water tube boiler which operates on the principle of forced circulation of water through a heated coil. Only a small amount of water is contained in the steam generator which is therefore small in size and can start-up and respond to changes in steam demand very rapidly.
A feature of the design which is important for animal feed production is the very high steam quality. This high quality is due to the use of a vortex type steam separator which is part of the standard design. The separator has no moving parts and removes water and any other small particles by centrifugal action. This ensures typically less than 0.5% moisture in the steam at all load conditions.