DESCRIPTION
Most food production industries are concerned with controlling the humidity of the workshops.
According to needs, DESSICA systems provide sterile, cold dry air to prevent “physical” contamination (deposit of micro-particles of water on the products), reduce airborne contamination, and preserve the rheological characteristics (weight, texture, “sticking” of the products). They also improve hygiene, safety and working conditions through rapid drying after washing.
In addition, this drying of workshops after washing phases increases productivity, guarantees a dry room (air and surfaces) and prevents “post-contamination” after washing. The rotary systems offered by DESSICA can be equipped with a hygienic desiccant rotor composed of 81% active silica gel, 2% lithium chloride and additives, making this wheel bacteriostatic, and so, limiting airborne contamination.
IMPLEMENTATION dehumidifier for food processing
Processing tropical fruits into powders and flakes
- Control the production atmosphere of the processing unit
- Maintain low humidity in a tropical country with outdoor conditions up to 21g of water / kg of dry air
- Prevent “sticking” of the fruit puree on the rollers
- Prevent clogging when processing fruit into a fine paste (similar to edible paper) in roller dryers
- Make easer the food conveying
- Provide dry air to prevent the finished product from regaining humidity
- Reduce air borne contaminations
Control the humidity of the air in a fish slicing workshop
Salmon are stored in a refrigerated store at -2 ° C. To stop condensation on the cold product, the dew point of the air in the slicing room must not rise above -2 ° C, i.e. 3.2 g of water vapor per kg of air. The ambient temperature of the room must be maintained at + 7 ° C. We decide to keep the dew point at -4 ° C, in order to prevent the appearance of any condensation. The air conditioning system must be sized to compensate for the temperature rise due to heat generated by machines, operators or infiltration air, as well as humidity generated by operators (breathing) and by other potential sources. The proposed system will provide air with a temperature of + 2 ° C, a humidity of 1.5 g / kg and a dew point of -10 ° C.
Post-washing drying process
A 700 m2 workshop is cleaned and disinfected overnight, by a specific team. The floor, equipment, worktops, etc. are cleaned with hot solutions (55 to 60 ° C). The total duration of the operation is 4 to 6 hours. Subsequently, the ground and the equipment get wet. The water evaporates and there is a risk of condensation appearing on products, walls and machines as well as post-contamination by the growth of residual microorganisms that have withstood this cleaning operation. Thanks to the systems offered by DESSICA, the mist present in this area is eliminated very quickly (less than 15 minutes) and it is possible to completely dry the area in a very short time. This way, the morning shift can resume production 8 hours after the afternoon shift ends. In addition, measuring devices (sensors, weighers, etc.) are less attacked by ambient humidity.
