Material drying system and material drying method

Abstract

The invention discloses a material drying system and a material drying method, and belongs to the field of material drying. The material drying system comprises a drying machine, used for drying materials; an evaporator, used for absorbing heat energy of steam generated by the drying machine and comprising a heat flow side and a cold flow side, wherein a steam inlet of the heat flow side is in communication with a steam outlet of the dryer; a separator, used for gas-liquid separation and comprising a plurality of inlets, wherein the first inlet of the separator is in communication with an outlet of the cold flow side; and a he steam compressor, used for compressing steam, wherein an air suction port of the steam compressor is in communication with a steam outlet of the separator, and an exhaust port of the steam compressor is in communication with a jacket of the drying machine and a steam inlet of the hollow hot shaft. According to the material drying system, energy utilization of hot steam discharged by the drying machine is achieved, and the energy utilization rate of the material drying system is increased.

Description

technical field [0001] The application belongs to the technical field of material drying, and in particular relates to a material drying system and a material drying method. Background technique [0002] Drying involves many industries such as chemical industry, mining, food, pharmaceuticals, environmental protection, etc. It is an indispensable basic link in the production of the above industries, and it is also the main energy-consuming link in the entire production process. [0003] The existing drying process generally uses air as the medium and high-grade heat sources such as superheated steam, electricity, and flue gas as the heat source. The heated low-humidity hot air exchanges heat and mass with the wet material, so that the wet material is dried. The entire drying process is a process of net energy expenditure. The energy consumption is high. It is calculated that 1 kg of water evaporated from the wet material needs to consume 3000-4000 kJ of heat and 50-100 kW of ...

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Problems solved by technology

[0004] The purpose of this application is to provide a material drying system and a material drying method to solve the problems of high energy consumption and waste of energy in existing drying

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