Heat pipe type three-cylinder vacuum dryer

Abstract

The invention discloses a heat pipe type three-cylinder vacuum dryer. The heat pipe type three-cylinder vacuum dryer comprises a vacuum drying bin, a roller path, a gear ring, a three-way joint device, a discharging device, a vacuum unit, an elbow device, a support, supporting wheels and a driving device, wherein the heat pipe three-cylinder drying bin comprises a heating device, a three-cylinderdrying bin and spiral blades; heat energy carried by a medium is conduct to heat materials in the three-cylinder drying bin through the heating device; the heat dissipation area of the heater with heating strips is increased by 8-35 times; the heater with the heating strips conducts heat energy to a heat conduction working medium; the heat conduction working medium performs heat conduction and heat exchange of liquid-vapor phase change in an inner cavity of a pipe; the heat energy is conducted to the materials in a roller through a heating pipe to heat the materials; the vacuum unit pumps anddischarges air in the three-cylinder drying bin and moisture generated during material drying; and the heating device in the three-cylinder drying bin stirs the materials during material drying work,the material drying quality in the three-cylinder drying bin is uniform, the material drying efficiency is improved, and the material drying effect is optimized.

Description

technical field [0001] The invention relates to a three-cylinder vacuum dryer, in particular to a heat pipe type three-cylinder vacuum dryer. Background technique [0002] At present, there are three-cylinder vacuum dryers on the market that are equipped with a heating chamber outside the vacuum drying chamber. The heating tank conducts heat conduction heating to the cylinder of the vacuum drying chamber. , The small heat conduction area of ​​the cylinder results in slow conduction of heat energy; the structure of the three-cylinder vacuum dryer with the heating tank is complex, the production cost is high, and the maintenance cost is high. [0003] Now there are hundreds of heat dissipation risers in the vacuum drying chamber of the vacuum dryer on the market. The welding processing index requirements for the welding connection between one end of the hundreds of heat dissipation risers and the inner wall body are very standardized, but it is still easy. Exposed welding qua...

AI Technical Summary

Problems solved by technology

The heat conduction area of ​​the heating plate at the lower end of the heating tube is limited, and the heating plate with a small heat exchange area only inputs a small amount of heat. The heat conduction working fluid affects the heat energy in the heat conduction tube to the inner cavity of the tube due to the limited heating area. The heat conduction heating of the heat-conducting working medium causes the total heat energy of the heat-conducting working medium to be insufficient, causing the heating tube to fail to output a large amount of heat energy, and the material cannot get enough heat energy, which affects the drying efficiency of the material in the vacuum drying chamber

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