Heat-sensitive material closed loop adsorption dehumidification two-stage drying system

Abstract

The invention discloses a heat-sensitive material closed loop adsorption dehumidification two-stage drying system. The heat-sensitive material closed loop adsorption dehumidification two-stage dryingsystem comprises a dryer, the dryer comprises a first drying zone and a second drying zone, one top air outlet of the first drying zone communicates with a first gas-solid separator, one air outlet ofthe first gas-solid separator is connected with one air inlet of a second evaporator by one pipeline through a first precooler and a first evaporator in sequence, one air outlet of the second evaporator is divided into two paths, and one path is connected with one bottom air inlet of the first drying zone by one pipeline through an adsorption dehumidification zone of a first-stage dehumidification rotating wheel, a first condenser for preheating, a first cycle air fan and a first heater to form a first-stage drying gas circulation loop. By means of the heat-sensitive material closed loop adsorption dehumidification two-stage drying system, a two-path closed loop system is adopted, when heat-sensitive materials are dried, the activity of the heat-sensitive materials is maintained, and a good drying effect is also achieved.

Description

technical field [0001] The invention relates to a heat-sensitive material closed loop adsorption dehumidification secondary drying system. Background technique [0002] Heat-sensitive materials are materials that are unstable when exposed to heat. During the drying process of such materials, they are very sensitive to drying temperature and drying time. Since heat-sensitive materials are prone to deterioration reactions such as decomposition, polymerization, and oxidation when exposed to heat, if the drying temperature of heat-sensitive materials is high and the drying time is too long, their components will be severely damaged, which will cause major economic losses. Production should try to avoid the occurrence of this phenomenon. In the drying process of heat-sensitive materials, drying temperature and drying time are very important control factors. In the prior art, methods for drying heat-sensitive materials generally include spray drying, vacuum freeze drying, hot ai...

AI Technical Summary

Problems solved by technology

However, the dust removal capacity of the gas-solid separator or the bag filter is limited, and the exhaust gas after dust removal will inevitably carry a certain amount of dust, which will be discharged into the atmosphere to cause pollution

Images