Heat Pump Dehumidifiers
Heat Pump Dehumidifiers of drying specialty crops such as dry herbs, fruits, vegetables, seeds, seafood, noodles, etc., need to be dried at low temperature between 30 – 45oC for product quality optimization. This is an important consideration as they have a relatively high commercial value. Heating ambient air to use for drying although a simple cost effective procedure is of limited application particularly at higher ambient air relative humidity because of the low allowable maximum temperature conditions under high ambient moist air conditions, it may not even be possible to dry the material conventional means. High temperature drying deteriorates the material structure and can render it unsuitable for further use. Low temperature drying of specialty crops reduces the risk of loss in nutrient content and damage to physical properties.
Heat Pump Dehumidifiers and Drying systems incorporates a dehumidification cycle that have been developed to conserve energy and handle the material gently. The dryer operates using a heat pump where both sensible and latent heats are recovered from the exhaust air. The heat is then recycled back through the dryer by heating the air entering the dryer. The heat pump drying system is a combination of heat pump dryer. Scanair heat pump dehumidifier machine adopts international standard quality which is suitable for small and medium scale production. The smallest type can be operated by only one person, and this machine need no installation, plug and play it can put into production directly when the machine is delivered. The customers can purchase one or more dryer according to your needs. Also we offer customized dryer for them. The machine can settle the technical data of temperature and humidity in the drying process which will truly dry the materials in high quality.
Scanair heat pump dehumidifiers and dryers are widely used to dry herbs, fruits, vegetables, seeds, seafood, noodles, etc,. The materials after drying are having good quality and nice appearance. Also it has less energy consumption. Compared with the traditional dryer, it can save 70 % energy and the drying capacity can improve 50 % compare with other models. Scanair Heat pump dryer running cost just as 40% of oil burner dryer, 50% of coal burning boiler, 30% of electric boiler heat pump dehumidification drying method of the closed cycle, saving costs, no exhaust waste heat emissions, no noise pollution, environmental protection. Scanair low temperature drying technology (15-50oC/60 oC /80 oC) similar like nature drying but faster drying time cycle. Adopt closed type circulating air heating and cooling, drying, suitable for inflammable and explosive materials, poisonous material. Pungent odor of materials easily oxidized material etc,.
Drying process material no deformation, no cracking, no-discoloration, no deterioration, and no oxidation, thorough drying after drying and dehydration, less loss of nutrients, the long storage period, more than any conventional drying equipment to more effectively protect the color of the dried material, smell, last, individual form and active ingredients. installation and operation easily, just need connecting with drying chamber plug and play. Scanair India has designed a Stainless Steel Re-circulation Dryer for application use in agro processing where there is no dryer available and only open drying is being followed. Industrial Dryers, Conveyor Dryers, Tunnel Dryers, Batch type Dryers, Tray Dryers, Multi-band Conveyor Dryer, Tilting Louver type Dryer, and Tower type Dryer, continuous Type and batch type dryers The product could be dried cotton seed, soya been, soya wadi, Potato chips and dal papad, fish, mango bar, meat, fruits and vegetables, herbal products, turmeric, ginger etc,. The product is introduced into the dryer through multi-layer stainless steel trays carrying trolleys. The dehumidified hot air is introduced into the dryer and forced to go through the product for fast drying capability. Automation is introduced to create optimum temperature inside the drying chamber thus ensuring quality of products.GINGER DRYING PROCESS
Native properties of the type grown. Gingers grown in different parts of the world can differ in their native properties such as flavour, aroma and colour and this affects their suitability for processing. This is most important when preparing dried ginger, which needs rhizomes with a strong flavour and aroma. Size of rhizome is an important factor to consider when drying ginger – medium sized rhizomes are the most suitable for drying. Large rhizomes often have a high moisture content which causes problems with drying.
The traditional method is to lay the pieces on clean bamboo mats or on a concrete floor and sun-dry until a final moisture content of 10%. Drying may take anything from 7 to 14 days depending upon the weather conditions. During drying, the rhizomes lose between 60 and 70% in weight. In rainy conditions, a mechanical drier such as a tray drier should be used to accelerate the drying process. Sliced ginger pieces take only 5-8 hours to dry when a hot dehumidified air drier is used. Whole peeled ginger rhizomes take about 16-24 hours to dry in a mechanical drier. It is important to monitor the air flow and temperature during drying. The drying temperature should not exceed 60°C as this causes the rhizome flesh to darken.
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