Application of far-infrared electric heater in chemical industry
The latest type of far-infrared electric heater is used in chemical products. The far-infrared electric heater is a new generation of heating equipment for reactors. It has reasonable structure design, good radiation effect, safety and reliability, obvious energy saving, long service life, no noise in operation, and no Pollution, no additional space, precise temperature correction, simple device operation and other advantages, compared to the original resonance oil, steam heating saves production costs by more than 30%. In the environment of energy saving and environmental protection, many large chemical products are widely used in automobiles, textiles, printing and dyeing, dyes, papermaking, bicycles, refrigerators, washing machines, chemical fibers, ceramics, electrostatic spraying, grain, food, food, pharmaceuticals, and chemicals. , Tobacco and other occupations, reach the heating composition of ultra-fast drying, especially suitable for chemical reactors, large drying rooms of leather machinery, ovens, and water drying channels. Dissipated into the reaction kettle, it is a radiant heater, and far infrared has the effect of promoting blood circulation, which is beneficial and harmless to the human body.
The silicon carbide far-infrared radiating element is the primary element of the heater. The flexural strength of silicon carbide at room temperature is 45Mpa, the flexural strength at 1000°C is 50Mpa, and the volume density is 2.7-2.75g/cm3. The thermal expansion rate at 900°C is 0.42-0.48% resonance coefficient (350 ℃) 10.3-16.7w/mk.
After being energized, the far-infrared heater can form extremely strong broad-spectrum directional radiation in a straight space, which is converted into electrical energy and effectively converted into far-infrared radiant energy, which is directly transferred to the object to be dried, quickly converted into molecular thermal motion, and dried inside. When far infrared rays are radiated to an object, they can be absorbed, reflected and transmitted. The heated and dried dust material absorbs far-infrared radiation energy together with the surface molecules at a certain depth, and generates self-heating effect, which makes the solvent or water molecules evaporate and heats evenly, and then avoids deformation and mutation due to different degrees of thermal expansion. Make the appearance, physical and mechanical properties, fastness and color of the material persist.
