Industrial Microwave Dryer
In natural latex foam products
manufacturing plants, water is used to wash away the residual chemicals used
during molding of products. High-pressure wringers or hydro-extractors are then
used to squeeze or spin out a large proportion of water from the products, to
bring them to a semi-dry state. The remaining moisture is usually low. Because
of the low moisture levels and poor thermal conductivity of foam, to drive the
remaining moisture from the center to the surfaces with conventional drying
techniques, such as steam or fossil fuel burning dryers, is usually a slow
process with inherent problems of product degradation.
Our microwave latex foam dryer is specially designed to address these problems. Instead of transferring heat from the surfaces inwards, microwave penetrates into latex foams electro-magnetically and causes the whole volume of product to heat up rapidly. The end result is an evenly dried, natural-coloured, high quality product.
KEY FEATURES & BENEFITS
– modular design enables the throughput of dryer to be
expanded to suit various production capacities. This provides a low cost
solution to drying bottlenecks when demand for output increases.
flow of manufacturing processes. It can be retrofitted into the existing
facilities, such as roll foam sheeting facilities, etc. to form a complete
exposure time of the products can be adjusted to suit various moisture contents
and product characteristics, resulting in less energy wastage.
– dryer can be
instantly turned on and off, eliminating the need for warm-up and cool-down.
Heating times required to evaporate the moisture in the products is often less
than 1% of that required by the conventional heating methods.
heats only the polar molecules like water in the products, not the surrounding
air nor the walls of dryer. Furthermore, our uniquely designed system takes full
advantage of the hot air by-product from the magnetrons in enhancing its drying
efficiency. This translates into more efficient energy usage and higher
Less labour cost – The dryer needs only two men to operate.
Lower capital investment – no steam boilers and associated piping are required.
Smaller footprint – because microwave systems are more compact, it normally
occupies a smaller floor space than the conventional dryers of similar capacity.
Less power consumption – due to efficient energy conversion and faster processing
and response speeds, energy consumption is far less than most conventional
to operate and simple to maintain – No heavy trays needed for placing the products. Simply
arrange the products on the moving conveyor at the feed end and then unload them
from the belt when they are discharged. Apart from periodic examination for wear
on conveyor belt, the only part that requires maintenance is the magnetron
tubes. Typical operating life of these tubes is above 5,000 hours.
and environmentally friendly – no combustion by-products, low noise level, cooler
surrounding and thus eliminating the need for environmental permits and
improving working conditions for the operators.
product quality – uniquely
designed applicators ensure that products conveyed through them are
volumetrically heated up and are uniformly dried. Because of lower drying
temperature in the microwave system, the inherent weaknesses associated with the
conventional dryers, such as foam yellowing and scorching is greatly reduced.
Shrinkage in the microwave-dried product is also uniform with no
unsightly markings left on the surface of the products.
our microwave latex foam dryer is presently used by established
manufacturers to produce world-renowned brands of latex foam
mattresses. Negotiations are currently underway for further expansions.
The valuable experience we gained from the installations will
undoubtedly assure you of an unprecedented advantage over other drying
¨ Comply with international safety standard – uniquely designed leakage prevention system reduces microwave leakage to no more than 10mW/cm2 measuring at 5cm from accessible surfaces of the system under normal operation conditions with sufficient load. All control systems are equipped with safety interlocks that shut off microwave power instantaneously in the event of improper operation.
solution – we offer a single source of solution by providing a full
range of services from design, installation,
and commission to the training of your operators and technicians.
service – we strive for
complete customer satisfaction.
Microwave dried pillow.
C : Pillow dried with conventional method, showing obviouswire mesh marks and foam yellowing.
|Mattress marked “M” is microwave dried. It has smooth, creamy white surfaces. Mattress marked “C” is dried with conventional method. It appears yellowish and has wire mesh marks on the contact surface.|
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