Microwave heating roller kiln Mainly composed of feed microwave suppressor microwave heating Heating and holding furnace section, air cooling suppression section, rack, automatic external circulation conveying system, transmission system, microwave energy feeding system, insulation system, temperature sensor, circulating cooling water system, electric control system, stabilized power supply, feeding robot, unloading robot (2 sets), roller table temporary storage line system, etc. Total floor area of equipment: 135m2 (including electric control cabinet outside the furnace, external circulation system, etc.) Overall dimension of kiln: 27m × 5.0m × 3.0m long × wide × High), the equipment includes but is not limited to the following parts:
1. Feed microwave suppressor
To prevent microwave leakage in the kiln body, the microwave leakage is less than 1mW/cm2 (far lower than the national standard of 5m W/cm2, GB10436-89, Standard for Microwave Radiation in Workplace, which is equivalent to the microwave radiation level of mobile phones to ensure full personal safety).
2. Microwave heating and holding furnace section
It is mainly composed of furnace body, furnace cover, furnace hearth, insulation materials, exhaust port, temperature measuring port, etc. Microwave feed inlets are arranged on both sides of the oven body to connect the microwave generator. The temperature measuring port is used to measure the sintering temperature of materials; The exhaust port is used to discharge the volatile water in the furnace when drying the furnace; The material absorbs microwave energy and keeps the temperature constant to achieve ideal roasting effect. This section of control mainly maintains the stability of temperature by adjusting the power of microwave source.
3. Air cooling suppression section
It is mainly composed of furnace body, microwave suppressor, temperature measuring port, cooling air duct, etc. The temperature measuring port is used to measure the instant cooling temperature of materials. There is no insulation material in this furnace section. When materials enter this furnace section and move, the cooling air will blow to the materials, so that the materials can be cooled quickly.
4. Rack and shield
The rack is mainly used for support, and the material is carbon steel paint. The cover is made of fluorocarbon aluminum plate, light in weight, beautiful in appearance and corrosion resistant.
5. Automatic external circulation conveying system
It is composed of kiln inlet machine, kiln outlet machine, 90 º turning machine and plate return line.
six Performance characteristics:
1. Energy saving: more than 40% energy saving compared with traditional heating furnace;
2. Good product quality: based on the overall microwave heating mechanism, the product is evenly heated, and the product quality is good;
3. High production efficiency: based on the overall microwave heating mechanism, the heating speed is 5-15 times faster than that of the traditional electric heating kiln, and the cooling speed is faster due to the small heat capacity of the insulation system.
4. Process flexibility: pure microwave heating or microwave and electric hybrid heating can be selected according to different materials.
5. Reliability: It is equipped with an industrial water-cooled microwave source system, which can be used 24 hours without interruption. The microwave leakage value of the equipment system is far lower than the national standard, which is only equivalent to the radiation level when using mobile phones. It has its own microwave leakage alarm device and safety lock. When the microwave exceeds the standard, it will automatically or manually cut off the microwave source;
6. Environmental protection: no waste gas and waste water are discharged from the microwave kiln;
7. Strong operability: easy to use, PLC+touch screen control mode, built-in USB interface can realize automatic data recording, access and supporting editing and printing functions, multiple temperature curves can be set, with dual functions of automatic sintering and manual sintering.
