Grain stillage drying device

Abstract

The invention relates to a grain stillage drying device which is a special mechanical device for drying grain stillage. The grain stillage drying device comprises a conveying machine, an air heater, adrying tower and a cyclone unloading device. When the device manufactured with the technical scheme is in use, the spiral conveying machine is adopted for conveying materials, so that the grain stillage drying work is uniform; the air heater is utilized for heating air and blowing the grain stillage into the drying tower for drying, and therefore, the grain stillage is rapidly dried with hot airflow; an air heater blast pipe provided with fins is wrapped with an air outlet pipe of the cyclone unloading device, heat energy carried by waste gas produced during drying of the grain stillage can be exchanged to cold air flowing in the air heater blast pipe, the cold air is preheated and temperature is increased, and accordingly, energy-saving effect is achieved; when meeting the cold fins of the blast pipe, wet and hot gas containing alcohol can be condensed into a liquid containing alcohol to flow downwards along the fins, the liquid is collected by a liquid collecting hopper and discharged by a drain valve, and the discharged liquid containing alcohol is low-alcohol liquor, and therefore, the low-alcohol liquor is recovered by the device.

Description

technical field [0001] The invention relates to a drying device, in particular to a distiller's grain drying device. Background technique [0002] Distiller's grains are the dregs left over from the production of liquor in liquor factories. It is a high-quality livestock feed. Because it contains about 60% water, it is easy to deteriorate after a long period of time. After drying, it can be stored for 3 years without deterioration. The currently used distiller's grains drying device is generally fed by a conveyor, heated by a hot air blower, and dried in a drying tower. The exhaust gas discharged from it has high temperature, high humidity, and contains alcohol gas and wine aroma, which is not recycled. . Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a distiller's grains drying device, which can not only recover the heat energy of the waste gas, reduce the humidity of the waste gas, recover some low-alcohol li...

AI Technical Summary

Problems solved by technology

The currently used distiller's grains drying device is generally fed by a conveyor, heated by a hot air blower, and dried in a drying tower. The exhaust gas discharged from it has high temperature, high humidity, and contains alcohol gas and wine aroma, which is not recycled.

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