Electromagnetic heating type grain drying tower

Abstract

The invention belongs to the technical field of grain drying equipment, and particularly relates to an electromagnetic heating type grain drying tower. Grain particles are dried by directly heating air through electromagnetic heating so that accurate control over the drying temperature can be conveniently realized, the heat loss of middle medium heat exchange is reduced, the equipment structure issimplified, the grain drying quality is improved, waste heat recovery is carried out on dried grains, energy is saved, and the energy utilization efficiency is improved. A drying section, an electromagnetic heating section and a waste heat recovery section adopt modular design and are convenient to assemble; according to different drying requirements and conditions, a personalized matching schemeis provided, and the application range is wide, so that the grain drying efficiency and quality are optimized; the drying tower is simple in structure, convenient to install and operate, capable of saving energy and environmentally friendly; according to the grains of different types and with different water contents and purposes, the drying section, the electromagnetic heating section and the waste heat recovery section are organically stacked and combined, and the optimal drying effect can be achieved.

Description

Technical field: [0001] The invention belongs to the technical field of grain drying equipment, and in particular relates to an electromagnetic heating grain drying tower, which uses electromagnetic heating to dry grain. Background technique: [0002] After harvesting, the loss of grain in the process of threshing, drying, storage, transportation, etc. is as high as 15%. Among them, due to the humid climate, the wet grain has no time to dry or does not reach safe moisture, resulting in the loss of mold, germination, etc. up to 5%. Based on this, the development of grain drying technology and changing the traditional passive situation of relying on the sky for food is of great significance to food security. [0003] Grain drying towers can be divided into cross-flow, mixed-flow, forward-flow, counter-current and forward-counter-flow, mixed-counter-flow, and forward-mixed-flow types according to the relative movement direction of grain and airflow. A grain drying tower for pr...

AI Technical Summary

Problems solved by technology

The main source of heat in the drying process of the grain drying tower is the heat released after the combustion of coal and natural gas. In order to avoid the dust and other harmful gases in the flue gas from polluting the grain, the high-temperature flue gas after fossil fuel combustion needs to pass heat conduction. The air is heated by the hot air, and the grain is dried by the hot air; the burning of coal will cause environmental pollution, and the supply of natural gas is easily affected by the season and the external market; the high-power blower used for cooling the grain not only consumes a lot of In addition, the drying tower in the prior art will cause serious heat loss and low efficiency after undergoing multiple heat exchanges.

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