Traditionally, water drying processes usually use combustion fuels or electricity for heating, and the external objects are heated to generate heat and transfer it to the material through convection of hot air or thermal conduction, so that the water in the material can absorb heat to achieve the purpose of drying. However, traditional combustion fuels, such as natural gas, liquefied gas, coal, wood, etc., are non-renewable resources, and the combustion process emits a lot of pollutants; the heat loss is large, the energy use efficiency is low, and the drying time is long. Therefore, the use of infrared radiation heating to dry water has become a new way of industrial cleaning and efficient heating.Traditionally, water drying processes usually use combustion fuels or electricity for heating, and the external objects are heated to generate heat and transfer it to the material through convection of hot air or thermal conduction, so that the water in the material can absorb heat to achieve the purpose of drying. However, traditional combustion fuels, such as natural gas, liquefied gas, coal, wood, etc., are non-renewable resources, and the combustion process emits a lot of pollutants; the heat loss is large, the energy use efficiency is low, and the drying time is long. Therefore, the use of infrared radiation heating to dry water has become a new way of industrial cleaning and efficient heating.

The principle of infrared heating is essentially the heat transfer process of infrared radiation. Infrared radiation is a kind of electromagnetic wave with certain penetrability, which can transfer energy through radiation. When the object is irradiated by infrared radiation, reflection, absorption and penetration will occur. The effectiveness of infrared heating is mainly determined by the degree of infrared absorption by the object. The greater the absorption of infrared radiation, the better the heating effect. When the infrared wavelength emitted by the infrared radiation source is consistent with the wavelength of the heated object, the heated object absorbs a large amount of infrared energy, causing the atoms and molecules in the object to resonate with each other, friction and heat generation, thus increasing the temperature of the heated object, and achieving the purpose of quickly and effectively heating the object.

Infrared heating technology has many advantages as a new drying technology for industrial drying:

(1) Shortening drying time;

(2) Improving energy utilization efficiency;

(3) Uniform heating of products;

(4) High product quality;

(5) Low thermal inertia of infrared radiation, easy to achieve accurate temperature control;

(6) Saving space and no pollution to the environment.

Food dehydration and drying

After food dehydration and drying, it can extend the storage time and facilitate transportation. It is one of the important food processing and processing methods. The traditional food drying methods are all based on hot air drying, but due to its long drying time, serious pollution, high energy consumption, and affecting the sensory quality of the dried products, it is hoped that a new type of fast, efficient, energy-saving and pollution-free drying technology can be found to replace the traditional drying methods.

Ink moisture drying

With the increasingly strict environmental protection requirements, almost all printing inks require the use of water-based inks, various coatings, light oils, etc. also require the use of water-soluble materials. Due to the high specific heat and vaporization heat of water, the evaporation of water-soluble solvents is much more difficult than that of traditional inks. In addition, the chemical composition of inks and coatings themselves is mostly organic polymers, which need rapid heating to promote polymerization reactions. Infrared heating has a high energy density, good penetrability, almost simultaneous drying inside and outside the coating, and fast speed, etc. compared with traditional hot air heating.

Solvent moisture drying,such as rubber moisture drying, polyester film moisture drying, etc.

For rubber moisture drying by infrared, the infrared radiation source should be selected according to the characteristics of the rubber material, and the wavelength of the infrared radiation source should be consistent with the wavelength of the rubber material. The infrared radiation source should be placed at a certain distance from the rubber material to ensure that the rubber material is evenly heated. The temperature of the rubber material should be controlled to prevent the rubber material from being overheated and damaged.

For polyester film moisture drying by infrared lamp, the infrared lamp should be placed at a certain distance from the polyester film to ensure that the polyester film is evenly heated. The temperature of the polyester film should be controlled to prevent the polyester film from being overheated and damaged. The wavelength of the infrared lamp should be consistent with the wavelength of the polyester film to ensure that the polyester film can absorb the maximum amount of infrared energy. The infrared lamp should be adjusted to the Q: A: appropriate angle to ensure that the polyester film is evenly heated. The drying time should be controlled to ensure that the polyester film is completely dried.