What Are the Components of an Industrial Dryer?

An industrial dryer is machinery used for removing moisture by forced heating, centrifuging and draught; it is also used for removing water vapor from compressed air, which is essential in certain industrial processes. If the water vapor present in the air is left unattended, it may lead to repercussions like corrosion, freezing and decaying of products and processes which may hamper the smooth functioning of the related industries. The industries and applications which require dry air include pneumatic tools and control systems, paints, feed air for zeolite-type nitrogen and oxygen generators, and telecom industries.

Pressure Vessels

• The pressure vessel is made of steel and is used to keep compressed air. Pressure vessels should be kept dry from inside as wetness or moisture inside the vessel, if left unattended, may corrode the pressure vessels as well as the other parts inside it too. The pressure vessels are lined with rubber to keep them safe from corroding.

Silica-gel

• Silica-gel component is used in heated dryers as well as heatless reactivated dryers. It absorbs huge quantities of moisture and is inexpensive. The reactivation temperature is low at 150 degree Centigrade.

Aluminosilicate Gel

• Aluminosilicate gel is also used as a buffer in certain desiccant industrial dryers. This is used along with ordinary silica gel as it is more expensive compared to it. It is effective in removing the liquid water from the dryer. The remaining water vapors are then removed by the silica gel.

Molecular Sieve

• Molecular sieve is used in dryers that require very low pressure dew points. It works for temperatures as low as -70 degrees Centigrade. For this temperature there is no component which can work as effectively as the molecular sieve, which makes this component quite expensive. A molecular sieve with pores ranging from 4 Angstrom to 12 Angstrom can be used as a component of industrial dryers. Both the heatless as well as the heat-reactivated dryers can use this molecular sieve. The drawback of this component is that it takes a long time to dry if the molecular bed gets fully saturated. The reactivation temperature of the molecular sieve is around 235 degrees Centigrade.