Cartap anti-caking drying method

Abstract

The invention discloses a cartap anti-caking drying method. In the air way operating process, airflow passing through a demister enters a vertical rising pipe, spiral rising airflow is formed, the spiral rising airflow goes out from the top end, the airflow exhausted from a center hole of a cyclone separator is guided into an air inlet of an air blower, an automatic air supplementing valve is arranged in the air blower and linked with the air pressure on a discharge port of a rotary valve, a closed cycle is achieved in the whole system, and air is supplemented in proper time; and in the material operating process, hot material finished products continuously going out from a rotary valve of a flash dryer are put in a drying cold air horizontal pipe at the angle of 30 degrees and then enterthe vertical rising pipe, spiral rising airflow is formed by the hot material finished products and cold air, the cooling process is completed, the spiral rising airflow is exhausted from the top endand enters the cyclone separator, finally hot air and a solvent enter the air inlet of the air blower, after the hot air and the solvent are pressurized and accelerated through the air blower and passthrough a saline fin heat exchanger, the hot air and the solvent are cyclically used after passing through the demister, the effects of energy saving and environmental friendliness are achieved, meanwhile, the caking rate of bag wall materials is reduced, and the overall color and luster of the materials are improved.

Description

technical field [0001] The invention relates to the technical field of cartap drying, in particular to a method for preventing cartap drying from caking. Background technique [0002] The operation of the traditional flash drying process of cartap technical includes material operation and gas path operation: [0003] Among them, the material operation conditions include: after the temperature of the inlet and outlet air of the flash evaporation system reaches the requirement, the screw feeder is started to feed, and the wet material is broken into fine particles under the action of the crushing blade of the main engine, and spirals up in the same direction as the hot air in the main engine , and fully mixed with the hot air, the solvent in the wet material quickly vaporizes, and reaches the top of the main machine after a few seconds. After the drying process is over, the dry material, hot air and gaseous solvent enter the cyclone separator together. After entering from the...

AI Technical Summary

Problems solved by technology

[0008] It can be seen from the above table that in the traditional cartap drying process, there are problems such as serious agglomeration of bag wall materials, darkening and blackening of product color, resulting in waste of cartap raw materials and affecting the operation of later drying equipment

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