Belt drier with material stirring function

Abstract

The invention discloses a belt drier with a material stirring function. The belt drier with the material stirring function comprises a drying bin, a belt conveyer, a heating device, an air exhaust device, an unloading valve, a charge hopper, a material stirring device, a material guide plate and a material guide side plate. The air exhaust device is fixedly connected to an air exhaust port of thedrying bin, and the unloading valve is installed on a charge port of the drying bin. An upper-layer conveying belt of the belt conveyer passes through the space between the heating device and a heating plate below, and the distance between the bottom plate of the heating device and the space above the upper-layer conveying belt is 30-55mm; and a heat-conducting medium carrying heat energy carriesout heat conduction and heat dissipation on materials on the upper-layer conveying belt while passing through the heating device, the material stirring device and the heating plate below, and high heat conversion efficiency, low loss, and high effective use rate of conduction and heat exchange for the heat energy are achieved. The materials carry out small-range left-right overturning movement under the guide of the material stirring device and under the conveying inertia effect of the conveying belt, and the heat-radiation and heat-conduction heating of the heat energy for the different positions of the materials can be improved, so that the material drying efficiency is increased and the material drying effect is optimized.

Description

technical field [0001] The invention relates to a belt dryer, especially a belt dryer with the function of stirring materials. Background technique [0002] The belt dryer is a continuous operation drying equipment. The current main heating method of the belt dryer is to pass hot water, water vapor mixture or other flowing heat transfer medium into the heating plate under the upper conveyor belt. On the upper side, the conveyor belt carries the materials through each heating zone in turn according to the set speed, and the heat transfer medium (steam, hot water, heat transfer oil) in the heating plate under the upper conveyor belt transfers heat to the materials on the conveyor belt through the heating plate, The material absorbs heat to evaporate its water, and the water vapor is sucked away by the exhaust device, and the dried material is discharged out of the drying chamber, and the whole drying process is carried out in the vacuum chamber. [0003] Since the lower heati...

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Problems solved by technology

[0003] Since the lower heating plate of the belt dryer is installed under the upper conveyor belt, the heat conduction of the lower heating plate (the material is on the upper surface of the upper conveyor belt) in the later stage of drying is due to the one-sided contact of the material with the heat medium (conveyor belt). The drying rate of the material on the upper surface is slow, and the material on the upper conveyor belt is dried by static conveying stacked together, which will cause uneven drying of the material and affect the drying effect of the material

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