How is the tunnel furnace heated?

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Hot air circulation is the heating method of tunnel furnace which is widely used at present. It uses the principle of convection conduction to heat the oven to achieve the drying and solidification of the workpiece. The heat source can be selected according to the user's specific conditions: electricity, steam, gas or fuel. The heat source box can be set according to the condition of the oven: placed on the top, bottom and side. If the circulating fan that produces heat source is a special high-temperature resistant fan, it has the advantages of long life, low energy consumption, low noise and small volume.
The hot air circulation is a heating method of a tunnel furnace which is generally used at present, and it uses the principle of convection conduction to heat the oven.
The drying and solidification of the workpiece is achieved. The heat source can be selected according to the user's specific conditions: electricity, steam, gas or fuel. The heat source box can be set according to the condition of the oven: placed on the top, bottom and side. If the circulating fan that produces heat source is a special high-temperature resistant fan, it has the advantages of long life, low energy consumption, low noise and small volume.
The working principle of the tunnel furnace (drying line) is generally to use the far infrared to warm the furnace, and then the interior is made of ceramic and stainless steel, so that the infrared light can shine into every corner of the furnace, and then uniformly heat up. , to transfer energy to the object.
The tunnel furnace is designed and manufactured by foreign advanced technology, with advanced structure, easy disassembly and assembly, and beautiful appearance. The high-tech insulation material has good heat insulation performance and strong heat preservation. The heating technology adopts far-infrared heating technology, the heating elements are arranged reasonably, and the energy consumption is low. The internal hot air circulation makes the temperature in the furnace more uniform and without holes, ensuring the quality of the oven products.
Tunnel furnace is one of the important equipments in the coating production line, and its temperature uniformity is an important indicator to ensure the quality of the coating. The heating methods of the oven are: radiation, hot air circulation and radiation + hot air circulation, etc. According to the production program, the single chamber and the passage type can be divided, and the equipment forms are straight-through type and bridge type. The hot air circulation oven has good heat preservation, uniform temperature inside the furnace and less heat loss. After testing, the temperature difference in the furnace is less than ±5 degrees to reach the performance index of similar products in advanced countries.

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HAIGIS
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