Introducere la uscare echipament

Metoda metode de dezumidificare poate fi divizată în trei tipuri conform la lor principii de lucru: metodă mecanică, metodă termofizică, și fizico-chimică metodă. In general, the the thermophysical method of dezumidificare is called uscare. uscare este procesul de utilizare căldură energie de vaporizare umiditate (apă sau altele solvenți) in the wet material, and the water vapor or steam is carried away by the airflow or extracted by by a vid pompă la obține a solid produs. Când uscare umed materiale, acolo are două uscare procese. Unu este suprafață vaporizare, unde căldură este transferat din the înconjurătoare mediu la suprafața de material, cauza suprafața la suprafața la evaporarea. Celălalt este intern difuzie control, unde the internal moisture of material is transferat la suprafața și apoi evaporat. The drying rate of the material is controled by the slower of the two processes mention above.
According to the material drying characteristics test, the material drying process can be divided into three stages. The first stage is the material preheating stage, during which wet materials are mainly preheated, while a small amount of wet materials are vaporized, and the temperature of materials soon rises to approximately equal to the Wet-bulb temperature; The second stage is the constant rate drying stage, which is mainly characterized by the use of all the heat transferred by the hot air to vaporize the moisture content of the material. The surface temperature of the material remains constant, while the moisture content vaporizes at a certain rate; The third stage is the rate reduction drying stage, where the drying rate of the material is controlled by the internal diffusion process. Only a small portion of the heat provided by the hot air is used to vaporize the moisture content, while the majority is used to heat the material, causing the surface temperature of the material to rise. However, the drying rate gradually decreases until the equilibrium moisture content is reached.
Cu dezvoltarea rapidă a industriei și agriculturii, uscarea echipamentul industria este constant maturizarea și creșterea, devenirea a vibrantă emergentă industria în in mecanica industria. Există sunt nu numai zeci de milioane de de tone de vrac materiale that need to be dryed, but also valoros items with an annual output of only a few tens of kilograms; Prin urmare, there are not only some large drying equipment to adapt to adapt to unique process requirements and production capacity, but also some small and medium-sized universal drying equipment. Uscare echipament is widely in industries such as chemical, building Materiale, Alimente, Farmaceutice, Și Biochimie.