Electromagnetic induction dryer

Abstract

The invention discloses an electromagnetic induction drying cylinder. It includes a frame, on which there arranges with a gearing spindle, decelerating box, a drying cylinder barrel is arranged on the gearing spindle, a drying cylinder mantle is arranged on the barrel, in the drying mantle there arranges with a electromagnetic induction coil, crystal ceramic glass protection layer, the electromagnetic induction coil is connected to a ring header, a high frequency power and automatic control system. The merits of the invention are: 1)it changes the heat transfer mode of traditional drying cylinder conducting media using the electromagnetic induction heating principle, it needs no steam, oil or other gas as heat conducting media, the structure is simple, high efficient, stable; 2) the efficiency is upgraded, and the cost is reduced; 3) each group of electromagnetic induction coils are allocated with high frequency current, thus the temperature of the working surface of the drier metal is even, at the same time, the device is easy and convenient to be maintained.

Description

technical field [0001] The invention relates to an electromagnetic induction drying cylinder. It can be used as drying equipment in papermaking, textile printing and dyeing, printing and other similar industrial fields. Due to the use of electromagnetic induction heating, the structure of the whole set of dryer equipment is simpler, the thermal efficiency is significantly improved, and the performance is more stable, which is very suitable for mass production. Background technique [0002] In the past, industrial dryer equipment generally used heating methods such as steam, oil or electric heating tubes (plates) to make the working surface of the cylinder body reach the required working temperature. The following will list the main defects of the above drying cylinder equipment one by one: the drying cylinder products using steam heating or oil heating involve a large number of pressure equipment, such as steam boilers or oil boilers, pressure ves...

AI Technical Summary

Problems solved by technology

The following will list the main defects of the above drying cylinder equipment one by one: the drying cylinder products using steam heating or oil heating involve a large number of pressure equipment, such as steam boilers or oil boilers, pressure vessels, pressure safety protection components, etc., they There are certain safety hazards, which are unfavorable to equipment operators; steam heating cylinder equipment also has complex steam and water separation devices, which increases the difficulty of on-site installation of equipment; in addition, the air environment caused by incomplete combustion of steam boiler fuel Pollution and the pollution of the working environment caused by the leakage of oil boilers are difficult problems that cannot be completely solved in industrial production; moreover, the energy consumption problem caused by incomplete combustion of fuel also needs to be greatly improved in the process of industrial production; at the same time, steam The inherent temperature limitation of heating or oil heating also constitutes a certain constraint on industrial production; the equipment maintenance of steam drying cylinder or oil drying cylinder is also quite heavy, which seriously restricts the smooth progress of production

The method of using electric heating tubes (plates) to heat the working surface of the cylinder body to the required working temperature has greatly improved the complexity of the equipment, energy utilization and environmental pollution, but there are also equipment failures. The maintenance workload is large, the heat insulation between the cylinder sleeve and the hollow transmission shaft, the connection material is expensive, and the manufacturing cost is high.

Images