Air flow drying system used for vinasse protein fodder production

Abstract

The invention relates to an air flow drying system used for vinasse protein fodder production. A discharge port of a drying discharger is connected with a feed port of a circulation conveyor. A discharge port of the circulation conveyor is connected with a feed port of a feeder. A discharge opening of the circulation conveyor communicates with a smashing and packaging system. A gas outlet of the drying discharger communicates with a gas inlet of an induced draft fan. A gas outlet of the induced draft fan communicates with a hot gas inlet of a cold air heat exchanger. A hot gas outlet of the cold air heat exchanger communicates with a gas inlet of an ice water heat exchanger. A discharge port of the ice water heat exchanger communicates with a feed port of a gas-liquid separator. A gas outlet of the gas-liquid separator communicates with a cold air inlet of the cold air heat exchanger. A liquid outlet of the gas-liquid separator communicates with a condensing and recycling tank. A coldair outlet of the cold air heat exchanger communicates with an air blower. The air blower communicates with a heater. The heater communicates with a discharge port of the feeder. Wet materials are carried by high-temperature dry air to be subjected to pneumatic conveying transportation, the high-temperature dry air absorbs moisture in the materials in the transportation process, and the aim of drying the materials is achieved.

Description

technical field [0001] The invention relates to the technical field of conveying and cooling equipment for powdery and granular loose materials such as distiller's grain protein feed, and in particular to an airflow drying system for producing distiller's grain protein feed. Background technique [0002] In the process of alcohol production, after the alcohol is distilled from the fermented mash, the distiller's grains rich in protein will be left, and the distiller's grains will be separated into two parts, the filter residue and the filtrate after solid-liquid separation. Finally, it can be used to produce whole distiller's grain dried feed, and the filtrate is also sent to the dryer for drying after being evaporated and concentrated, and the dried product can also be used to produce whole distiller's grain dried feed. At present, tube bundle dryers are usually used to dry filter residues. The tube bundle dryer uses high-temperature steam as the heat source. The high-tempe...

AI Technical Summary

Problems solved by technology

At present, tube bundle dryers are usually used to dry filter residues. The tube bundle dryer uses high-temperature steam as the heat source. The high-temperature steam enters the heat exchange tube bundle of the tube bundle dryer and exchanges heat with the material in the shell of the tube bundle dryer. After being dried, the high-temperature steam cools down and condenses. During this process, the tube core of the tube bundle dryer rotates continuously, carrying the material to the high place of the tube bundle dryer, and then freely falls between the tube bundles of the tube bundle dryer for heat exchange. Dryers are generally larger in size and longer in length, and the power required for the rotation of the tube core is larger. Moreover, since the heat exchange tubes that form the tube bundle are generally longer in length, in order to ensure heat exchange efficiency, the wall thickness of the heat exchange tubes is thinner. , used for a long time, the heat exchange tube is easy to sag and deform, which is easy to cause wear and tear of the heat exchange tube, resulting in high operating cost, large equipment investment, frequent maintenance and short service life of the tube bundle dryer, which seriously affects the production efficiency of distiller's grain protein feed

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