Different types of plastic infrared drier

3. Metal infrared dryer
The metal infrared dryer takes metal as the matrix, and the surface is coated (or sintered) with infrared radiation layer, which can be metal oxide or carbide, etc. Metal infrared dryer can also be divided into direct heating type and side heating type. Direct heating type is usually called resistance band infrared dryer. The side heating type includes metal tube, mesh, enamel tube, plate, etc.

(1) Direct heating metal infrared dryer
The direct heating metal infrared dryer is a resistance belt made of iron chromium aluminum alloy resistance belt or chromium nickel alloy resistance belt as the electrothermal substrate, which is sprayed with sintered rare earth calcium ferromanganese or other high emissivity coatings on its surface, and combined into a resistance belt infrared dryer according to certain requirements. This kind of dryer is widely used in paint baking, curing and drying of light industrial products; Dehydration, color fixation and heat setting of chemical fiber, textile and printing and dyeing products; Food, medicine, plastics, wood, leather, glass, ceramics, electronic components and other processing, especially suitable for low-temperature smelting and heat treatment of metals.

(2) Metal tubular infrared dryer
The common types of metal tubular infrared dryer include straight type, U-type, W-type, and other special-shaped structures. Usually, an electric heating wire is installed in the metal pipe, magnesium oxide powder is filled between the metal pipe and the electric heating wire as an insulating and heat conducting layer, infrared radiation material is coated on the outer wall of the metal pipe, and both ends are connected with fasteners.

4. Gas infrared dryer(plastic infrared drier)
With the development of urban gas industry, gas infrared dryer is increasingly widely used. The term "gas" refers to all fuels, including coal gas, liquefied petroleum gas and natural gas. The gas infrared dryer has the advantages of simple structure, low initial investment, fast start and stop, rapid temperature adjustment and high energy utilization.

Gas infrared dryer can be divided into surface combustion type and indirect heating type according to heating mode.