Improving the Efficiency of Stenters Using an Infra-red Stenter Pre-heaters for Faster Drying and Conditioning of Fabric
Stenters are used extensively in the dying and finishing industry and give many years of good service. By fitting an
electric infra-red pre-heater, the working flexibility of the basic stenter is enhanced, the efficiency is greatly improved
and increased customer orders can be met.
Infra-red Drying
Infra-red radiant heating represents a clean energy efficient drying
technique. The radiant transfer of energy heats the
fabric directly without the need to warm up large volumes of air.
The infra-red equipment is an open‘ design but the absence of hot air
means that the temperature of the factory is not
greatly effected.
Infra-red heating equipment is very adaptable. Providing there is
enough room at the front of the stenter, additional units
can be added to suit any future requirement. The simple
construction and absence of many moving parts and combustion products
give reliability and longevity.
Easily Retrofitted
Infra-red stenter pre-heaters are stand-alone items of equipment. They are relatively easy to retrofit
to the front end of an existing stenter with minimum disruption to production.
Benefits
The main benefit of making this relatively simple modification is that drying times are reduced so output capacity can be
boosted.
There are also many other benefits:
- Variable width heating across the web.
- Response time (heat-up time) of the infra-red elements is a matter of seconds.
- Pre-heater is automatically controlled through interlocking with the conveyor.
- A variety of types of shrinkage conditioning specifications can be met.
- Energy to be saved by switching off during even short production breaks.
Exact performance gains depend on the particular material, but based on recent projects, reductions in drying time of up
to 30% can be expected.
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