TH31235B - Circulating drying unit And circulating drying processes - Google Patents

Abstract

DC60 (09/05/46) This invention presents a circulating drying unit. and the drying process of the circulating system can control the concentration of the evaporator and oxygen concentration within the circulation system at a low level with low cost The burden on the environment from the excreted gas is low, giving a great advantage in the industry. Circulating drying unit that dries the drying material. which has an internal volatile component Dryer 12 with gas, which is heated with a heat booster 11 while making the gas circulates between the heater 11 and the dryer 12 as well as the drying unit. ready recirculating flow junction 25, which removes part of the gas circulating between the intensifier 11 and the dryer 12, and the gas treatment unit 16, which decomposes or recovers the part. The volatile constituents of the gas are withdrawn. and feed passage 26, which supplies the exhausted gas. from the gas treatment unit 16 back to the gas circulating between the heater 11 and the dryer 12, as well as the recirculating drying process using the unit. (Selected figure) Fig. 1 This invention presents a circulating drying unit. and the drying process of the circulating system can control the concentration of the evaporator and oxygen concentration within the circulation system at a low level with low cost The burden on the environment from the excreted gas is low, giving a great advantage in the industry. Circulating drying unit that dries the drying material. which has an internal volatile component Dryer 12 with gas, which is heated with a heat booster 11 while making the gas Circulating between the heaters11 with 12 dryers, including a set of drying systems ready recirculating flow junction 25, which removes part of the gas circulating between the intensifier 11 and the dryer 12, and the gas treatment unit 16, which decomposes or recovers the part. The volatile constituents of the gas are withdrawn. and feed passage 26, which supplies the exhausted gas. from the gas treatment unit 16 back to the gas circulating between the heater 11 and the dryer 12, as well as the recirculating drying process using the unit. (Selected image) Figure 1

Claims (1)

1. Recirculating drying unit is characterized by a recirculating drying unit that dries the dry matter containing the evaporation elements inside the gas dryer. Which is heated by a heater while circulating gas is between the heater and the dryer. Which withdraws part of the gas circulating between the booster Hot with a dryer out And a gas treatment set which dissolves Or put it back The evaporation part is Withdrawn gas composition And the feeder through which the gas is discharged from the gas treatment unit. Returned to the circulating gas between the heater and the dryer. 2. Circulating drying set according to claim 1, which has a special characteristic is that the gas treatment unit is a combustion unit. Which burns the evaporative part that is a component of gas 3. Circulating drying set according to claim 1 or 2, which has a special characteristic is a dryer. Such is a drying machine that uses a spray drying system. 4. Circulating drying set according to claim 1 ~ 3. It is designed with a heat exchanger. To act as heat exchange between gases being Evaporate from the gas treatment unit And the circulating gas is between the heater and the dryer 5. The circulating system drying method is a circulating system that dries the dry matter which has an evaporation component. Inside a gas dryer Which is also heated Heat booster While the circulating gas is between the heater and the dryer, it has the effect of removing part of the gas that is circulating between the heater and the dryer. The machine dries out. And decompose or collect back the volatile part That is the element of the withdrawn gas Out with a gas treatment kit And send gas that is discharged from the gas treatment unit Back to circulating gas 6. Circulating drying method according to claim 5, which has a special characteristic is that there is a combustion of the evaporative gas component inside the gas treatment unit. Claim 5 or 6 is characterized by a spray of drying material directly onto the heated gas inside the device. To dry 8. Circulating drying method according to claim 5 ~ 7, any one It is characterized by heat exchange between gases that are discharged from the gas treatment unit. With circulating gas In between the heater and the dryer 9. Circulating drying method according to claim 5 ~ 8, any one Its characteristic is that the concentration of volatile gas elements circulating between the machines is controlled. Add heat to the dryer Lower than concentration Lower limit Explosive limits of evaporation 1 0. Circulating drying method according to claim 5 ~ 9, any one The special feature is to control the oxygen concentration. Is a component of gas that circulates between the machines Add heat and drier to under 12 vol% 1. 1. Circulating drying method according to claim 5 ~ 10, one of the special characteristics is polymer-latex drying material.