The mesh belt tempering furnace uses a continuously running mesh belt to transport workpieces through a temperature controlled heating zone, thereby achieving the purpose of tempering the workpieces. This reheating furnace has the following characteristics and advantages: it is woven into a mesh belt with high-strength stainless steel wire, which has a long service life; The transmission mechanism is simple and reliable, and the mesh belt speed is infinitely adjustable; Adopting a large blade forced circulation fan to accelerate the airflow velocity of the furnace, improve heat transfer efficiency, and achieve uniform furnace temperature; Easy replacement of electric heating elements without dismantling the furnace top and shell; The furnace lining is made of aluminum silicate fiber cotton, which has good insulation performance for the furnace; Adopting high-precision instruments, reliable performance, and easy operation.
structure
1. Shell: The shell of the heating section is made of 4mm steel plate folded into a rectangular shape, with reinforcing ribs on the inner side. The bracket is welded from section steel and channel steel, which is beautiful and elegant.
2. Furnace: Built with lightweight energy-saving bricks, the furnace is insulated with aluminum silicate refractory fibers between the furnace and the furnace shell. The furnace has good insulation performance and a small volume.
3. Mesh belt conveyor: The transmission mechanism is installed at the lower end of the feeding port, and the mesh belt is continuously fed into the furnace by a variable frequency motor with stepless speed regulation through a motor and reducer.
4. Heating element: It is made of high-temperature resistance wire (Cr25AL5) wound and installed on the upper and lower sides of the heating zone, respectively. The temperature is uniform by heating up and down. The straight rod heating element is easy to maintain and replace.
5. Hot air circulation device: In order to achieve uniform furnace temperature, two powerful centrifugal fans are installed at the top of the furnace body. The centrifugal fans can effectively circulate the hot air flow under the action of the furnace flow guidance system.
6. Electrical equipment: The entire electric furnace is divided into two temperature zones for separate temperature control. Each temperature zone has a thermocouple for temperature control and temperature detection. The control method is programmable PID automatic adjustment, using a thyristor zero crossing trigger circuit for temperature adjustment and zero crossing trigger. The intelligent digital temperature controller can be used for temperature setting, correction, digital display, control, and sound and light alarm after overheating.