I. High-efficiency energy saving and rapid drying
1. Improved energy utilization
Microwaves directly act on the internal moisture of alumina, and the energy utilization rate can reach more than 80%. Compared with traditional drying methods (such as infrared heating), the comprehensive energy consumption is reduced by 30%-60%. Taking a certain production case as an example, the energy consumption is saved by more than 1/3.
2. Penetration heating shortens time
The microwave penetration depth reaches 2-5cm, which realizes the overall uniform drying of alumina, and the drying time is shortened to a few hundredths of the traditional method (such as static drying time is reduced by hundreds of times), and the single-machine processing capacity of tunnel-type equipment can reach 3000kg/h.
II. Quality optimization and process improvement
1. Uniformity and finished product quality
Microwave heating has no thermal gradient, and the temperature difference between the inside and outside is extremely small, which avoids the phenomenon of alumina agglomeration or surface coking. After drying, the moisture content can be reduced to below 0.1%, meeting the ultra-low moisture requirements.
2. Protection of chemical properties Low-temperature drying (<80°C) prevents the decomposition of heat-sensitive components of alumina and maintains its physical properties as abrasive and refractory materials (such as hardness and adsorption capacity).
III. Environmental protection, safety and automation
1. Green production The closed equipment design eliminates dust pollution, has no waste gas and wastewater discharge, and meets environmental protection standards. Microwave drying simultaneously inactivates microorganisms to improve the hygiene and safety of materials.
2. Intelligent control Integrated temperature and humidity sensors and PLC systems to achieve automatic adjustment of drying parameters (power, transmission speed), and support remote monitoring and data acquisition. Tunnel-type equipment can be connected to automated production lines to reduce manual intervention.
Through the above technical characteristics, microwave equipment has achieved a comprehensive improvement in efficiency, quality and environmental protection in alumina drying, becoming one of the core equipment for modern material processing.
