CAL-IN Technology Transfer, L.L.C.
Macro to Micro to Nano... Critical Environmental Experts
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Product Drying
CAL-IN dehumidifiers all for quality improvements in product drying applications without sacrificing processing speed. Most products are dried using hot air to vaporize moisture and carry it away. Often, however, hot air is either too slow or results in damage to the product. Enzymes, for instance, are destroyed by heat, and if yeast is dried with very hot air, it cannot work properly.
When there is a benefit to drying at temperatures below 120° F, there is generally a benefit to using air which has been dehumidified rather than just heated. The cooler the temperature, the more the economics favor dehumidifiers. For example, in one installation enzymes used in commercial detergents are dried in a fluidized-bed drier. Because of the temperatures involved, the drying capacity of the fluid bed is doubled when the air dew point drops from 65° F to 20°. This means the size of the fluid bed can be cut in half.
Investment Castings
In this process, wax patterns are repeatedly dipped in ceramic slurry. These layers build up to form a mold, which is filled with molten metal after the wax is melted out. Dry air rather than heat is used to dry the ceramic layers because hot air could deform the wax pattern. Using dehumidifiers lets investment casters operate foundries at consistent rates all year long, without having to allow for slower processing in humid months. This lets manufacturers improve compliance with clean air laws by substituting water for solvents. The productivity improvements are major—in many situations drying time is reduced by more than 50%.
Plastic Resin Drying
Plastic resins are all hygroscopic to some degree. The moisture they absorb boils off when they are heated by the molding and extrusion processes when plastic pellets are formed into products. This boiling vapor creates structural and cosmetic flaws in the products, which reduces their value. Desiccant dehumidifiers are used to dry plastic pellets to very low moisture levels before they are melted, which improves end-product quality and raises profits for the fabricator.
Candy Coating
Any coated candy like gumballs or chocolate-covered nuts can benefit from using dry air to speed drying. In the case of chocolate, high temperatures would melt or dent the product. With gumballs, the gloss of the coating is enhanced by using dry air, and the product is less likely to stick together in the coating pan. Coated candy or chocolate with high-quality, glossy surface finish is almost always produced with the aid of dry air form desiccant dehumidifiers.
Fish Drying
Delicate foods like fish are very sensitive to heat. Ideally, they should be dried at cold temperatures so bacteria will not grow and proteins will not break down. Such problems affect texture, flavor and sanitation. Desiccant dehumidifiers are used with cooling systems to dry fish efficiently at low temperatures. Without dehumidifiers, drying times at low temperatures would be too long to be economically practical.
TYPICAL APPLICATIONS
CAL-IN dehumidifiers all for quality improvements in product drying applications without sacrificing processing speed. Most products are dried using hot air to vaporize moisture and carry it away. Often, however, hot air is either too slow or results in damage to the product. Enzymes, for instance, are destroyed by heat, and if yeast is dried with very hot air, it cannot work properly.
When there is a benefit to drying at temperatures below 120° F, there is generally a benefit to using air which has been dehumidified rather than just heated. The cooler the temperature, the more the economics favor dehumidifiers. For example, in one installation enzymes used in commercial detergents are dried in a fluidized-bed drier. Because of the temperatures involved, the drying capacity of the fluid bed is doubled when the air dew point drops from 65° F to 20°. This means the size of the fluid bed can be cut in half.
Investment Castings
In this process, wax patterns are repeatedly dipped in ceramic slurry. These layers build up to form a mold, which is filled with molten metal after the wax is melted out. Dry air rather than heat is used to dry the ceramic layers because hot air could deform the wax pattern. Using dehumidifiers lets investment casters operate foundries at consistent rates all year long, without having to allow for slower processing in humid months. This lets manufacturers improve compliance with clean air laws by substituting water for solvents. The productivity improvements are major—in many situations drying time is reduced by more than 50%.
Plastic Resin Drying
Plastic resins are all hygroscopic to some degree. The moisture they absorb boils off when they are heated by the molding and extrusion processes when plastic pellets are formed into products. This boiling vapor creates structural and cosmetic flaws in the products, which reduces their value. Desiccant dehumidifiers are used to dry plastic pellets to very low moisture levels before they are melted, which improves end-product quality and raises profits for the fabricator.
Candy Coating
Any coated candy like gumballs or chocolate-covered nuts can benefit from using dry air to speed drying. In the case of chocolate, high temperatures would melt or dent the product. With gumballs, the gloss of the coating is enhanced by using dry air, and the product is less likely to stick together in the coating pan. Coated candy or chocolate with high-quality, glossy surface finish is almost always produced with the aid of dry air form desiccant dehumidifiers.
Fish Drying
Delicate foods like fish are very sensitive to heat. Ideally, they should be dried at cold temperatures so bacteria will not grow and proteins will not break down. Such problems affect texture, flavor and sanitation. Desiccant dehumidifiers are used with cooling systems to dry fish efficiently at low temperatures. Without dehumidifiers, drying times at low temperatures would be too long to be economically practical.
TYPICAL APPLICATIONS
- Uncured honey drying
- Photographic film manufacturing
- High voltage transformers
- Diagnostic reagent powders
- Whey powder
- Instant coffee creamer
- Pharmaceutical powders
- yeast
- Sorbitol
- Sugar substitutes
- Chromatography materials
- Low-moisture welding rods
- Emergency oxygen "candles"
- PET plastic resin
- Expandable bead polystyrene
- Glass powder
- Paint pigment
- Tomato powder
- Cork
- Prosciutto ham
- Hard sausage
- Potato flakes
- Grated cheese
- Pasta
- Cigars
- Wax coated cheeses
- Seeds
- Tea
- Gelatin
- Katha cake
- Matches
- Onions & garlic
- Milk & whey powders
- Jelly beans
- Breakfast cereal
- Gelatin capsules