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DESICCANT ROTOR The desiccant rotor is a high capacity desiccant media captivated in a circumference rim with radial spokes. The spokes attach to a central hub with integral sealed ball bearings. The sealed bearings ride on a solid center shaft. The rotor is held in place with a lock ring on each side the desiccant material, usually a silica gel impregnated into a support. This looks like a honeycomb, which is open on both ends. Air passes through the honeycomb passages, giving up moisture to the desiccant contained in the walls of the honeycomb cells. The desiccant structure is formed into the shape of a wheel. The wheel constantly rotates through two separate air streams. The first stream, called the process air. Is dries by the desiccant. The second air stream, called reactivation or regeneration air, is heated. It dries the desiccant. Technical Specifications Rotor material Desiccant: Solid silica gel Silica Gel Si02 - 82% Glass-fibre- 16% Acrylic surface coating - 2% Technical Data Density: 240kg/m3 Surface compression strength: >200kpa Water vapour absorption capacity :> 40% Max temp: 160Deg C PATENTED Desiccant Rotor Product NOT classified as harmful to the environment Properties No limitation of process air relative humidity. As long as no droplets are introduced in rotor during operation Dehumidification performance after continuous operation for: 5 years: approx. 90% 10 years: approx. 90% 15 years: approx. 90% Incombustible Washable in water or non alkaline detergent after saturation in humid air HYGRO DEHUMIDIFIER ADVANTAGES The Dehumidifier Manufactured by Hygro Tech is non cyclic, rotary type and removes the moisture by process of continues physical adsorption. The desiccant used by Hygro Tech is non toxic, non flammable with maximum moisture removal Capacity Hygro Dehumidifier can maintain Relative humidity (RH) as low as 1% regardless of ambient conditions.
Humidity Control for Pneumatic Powder Conveying Humidity / Moisture Control is a critical element for various forms of powders such as fine salt, detergents, flour, powdery foods, calcium phosphate, baking powder, wheat starch, plastics resin etc. Pneumatic conveying as a means of powder conveying system is widely used in many powder processing operations such as in handling transfer of food powders, flour in a mill, bakery or confectionery. Due to the stickiness nature of the hygroscopic powders, they get stuck into nozzles, conveying belts and mixing machines leading to increased maintenance time and bad hygiene. Stickiness – Powder gains properties of adhering or sticking to a surface and get stuck into conveying belts causing bad hygiene which ultimately leads to deteriorating of product quality. Cluster formation – Due to excess moisture similar particles of powder gather closely together forming buildups inside the mixing machine and causing blockages in free flow of powder. Lump formation – A large piece of powder sticks together without a definite shape causing obstruction in the nozzle passage and increasing the maintenance time. Caking – Moist environment forces powder to change into a solid mass which leads to increase in product wastage and slowing down of production process. Food powder processing In order to retain quality of powdery foods, they need to be dried at low temperatures. Applications Temperature (°C) Humidity (% RH) Instant Coffee Processing 26 25 Flour 24 10 Starch 24 20 Gelatin 24 10-30 Milk Powder Storage 21-36 15-30 Confectionary-Chocolate Covering 21-32 45 Coffee Packaging 18 40 Dry Spice Conveying <48 12-16 Gr/Lb Hygro Tech Engineers having a complete solution to treat the moisture problems with Hygro Dehumidifiers & drying chambers for all powder conveying, packing, storage
Desiccant Dehumidifier for Moisture Control in Switchgear rooms / control panel rooms through Hygro Dehumidifiers. for more details please visit The high humidity level in a switchgear room causes several damaging effects. It results in condensation of moisture on the switchgear surfaces when there is a sudden change in temperature because of outside (Weather) or inside (Air Conditioning) factors. The condensed moisture on the switchgear surface is detrimental to switchgear. The moisture may condense on switchgear insulator surface causing it to absorb moisture. The condensation problem is high in high humidity zones which includes coastal areas. Irrespective of the fact whether the switchgear rooms are non-air-conditioned or Air-Conditioned, humidity control is a must in the Switchgear Rooms.