Boiling dryer, precision machining, horizontal boiling dryer

Device Overview boiling dryer boiling dryer is a drying device, also known as fluidized bed, generally by the heater, the fluidized bed [1] host, cyclone separator, bag filter, fan, operation table. Depending on the nature of the material, you may need an optional cyclone separator or bag filter. After the air is purified and heated, introduced from the bottom suction fan through the hole hopper screen. In the studio, negative pressure is formed by mixing and fluidization, after the water is evaporated and removed quickly, fast drying material. Boiling dry, also known as fluidized bed drying, which uses hot air flow so that the wet particle suspension, fluidized boiling the material for heat exchange, the hot air through the evaporation of water or organic solvents away, which uses hot air flow of materials gas - solid suspension contact Heat and Mass Transfer mode, achieve the purpose of drying wet granules [1]. Fluidized bed drying technique involves two interrelated heat and mass transfer processes. Convection drying process, hot air through the wet material in contact with the heat spread material surface, and then spread from the surface of the material inside, which is a heat transfer process; and after the wet material is heated, the surface of the water first gasification, while the internal water liquid or gaseous diffusion into the material surface, and continue gasification into the air, the moisture is gradually reduced material, complete drying, which is a mass transfer process. Boiling drier air distribution plate has two roles, one support material layer, the second is the gas distribution. Distribution plate hole size, shape, distribution situation, the opening rate and so plays a crucial influence on the distribution of the fluid. Gas distribution is uneven, make the bed a "circulation", it tends to bed extremely easy to make some parts of a "channeling", while the remaining parts are dead bed, when most of the gas along the bed Some passages in the form of "channeling" short circuit through the bed to leave, so gas-solid contacting deteriorated significantly, which should be developed to avoid. Good distribution plate design, should be able to suppress unevenness appear bed, that is, when some parts of the bed pressure drop due to reduced airflow velocity increases, the resistance generated by the distribution board should be able to suppress an increase in the gas stream, thereby inhibiting fluidized worse.