Rotary wheel type drying system

Abstract

The invention discloses a rotary wheel type drying system, and relates to the technical field of drying devices for food. The drying system comprises a biomass hot-blast stove and a drying oven; an air inlet pipe is connected with an air inlet of a draught fan; an air outlet of the draught fan is connected with an air inlet in a hot-blast stove body; a chimney outlet on the hot-blast stove body is connected with a smoke pipe; a free end of the smoke pipe extends into the air inlet pipe, then extends out from a free end of the air inlet pipe and is connected with a chimney inlet on the drying oven; one end of a chimney coil pipe is connected with the chimney inlet on the drying oven, and the other end of the chimney coil pipe extends to the exterior of a shell body; a hot-blast outlet on the hot-blast stove body is connected with a hot-blast inlet on the drying oven through a hot-blast pipe. The system utilizes the temperature of a chimney for rising the temperature of inlet air, also utilizes the chimney coil pipe for heating the interior of the drying oven, effectively utilizes waste heat energy, and has good energy-saving effect; and the drying oven is internally provided with a plurality of rotary type box bodies, and thus the work efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of food drying devices, in particular to a rotary drying system with good energy-saving effect. Background technique [0002] The dryer has several modes such as belt drying, drum drying, box drying, and tower drying; the heat source includes coal, electricity, gas, etc.; the drying process of materials has hot air flow type and radiation type, etc. , hot air drum drying is that the hot air flow moves forward from the tail, fully contacts with the material, and makes full use of the heat transfer through heat conduction, convection, and radiation; the heat energy is directly transferred to the material, so that the moisture of the material is continuously evaporated in the cylinder, and the material is fed into the cylinder. The air-introduction device at the outlet draws out a large amount of water and wet air to prevent secondary pollution caused by dust discharge; through internal spiral stirring, sweepin...

AI Technical Summary

Problems solved by technology

The drying devices in the prior art generally use a heater to directly dry or use a stove to generate heat for indirect drying. Although the structure and principle are simple, the energy-saving effect is not good, and it does not conform to the development trend of science and technology.

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