Improve the work efficiency of the dryer - to speed up the hot air
2012-06-28 by seoer7
The material in the drying process of drying machine cylinder body, the gas-solid convective heat exchange is the main mode of heat transfer, heat transfer efficiency will directly affect the drying effect of the materials. Improve heat transfer efficiency of the gas - solid phase (1) is to strengthen the cylinder insulation. Fluidized bed furnace to provide a fluidized bed furnace to provide heat. Increase the gas-solid phase temperature, raising the temperature gradient (2) is to improve the solid-phase heating area; (3) increase the dryer hot gas flow, improve the flow rate of hot gas. Into the machine wet particle size remains constant and the design of a fluidized bed furnace heating, and improve the speed of the hot gas stream to accelerate the thermal velocity. (4) To improve the speed of the hot gas stream must be the end of the rational design of Dryerexhaust dust removal system and head-end heating the blast.
Exhaust fan full pressure, air flow should be appropriate, the total pressure is too low, too small amount of wind will affect ventilation, reducing the yield of the dryer; total pressure is too high, excessive wind, it will increase power consumption, but also easy to make from the wind exhaust gas temperature The body increases, the increased heat loss. Centrifugal blowers supply air for fuel combustion, total pressure, air flow should also be reasonable. Total pressure, air flow is too high and too low, will affect the degree of fuel combustion and combustion efficiency.