Tunnel-type microwave drying assembly line

Tunnel-type microwave drying production line, fast dehydration, obvious drying effect, wide application

I. Application characteristics of tunnel-type microwave drying:
Microwave low-temperature drying tunnel kiln is mainly used for the removal of free water and structural water from large quantities of components or powder materials in an air atmosphere. Depending on the actual situation of the equipment user, pure microwave heating or microwave-hot air mixed heating can be selected. This equipment has a simpler structure compared to traditional drying equipment, operates as a production line, and allows for intelligent and automated feeding and discharging. It has a large daily processing capacity, occupies a small area, offers high production efficiency, and saves over 30% in energy. Microwave drying replaces the original coal, electricity, and gas heating modes, saving over 30% in energy; for every kilowatt-hour of electricity saved, 0.4 kg of standard coal and 0.997 kg of CO2 emissions are reduced. By improving energy efficiency, it contributes to carbon neutrality. The era of microwave heating has arrived, and microwave heating is becoming the new heating technology of the 21st century!

II. Application mechanism of Zhongsheng microwave drying equipment:

Microwave heating and drying is a penetrating internal heating method. Electromagnetic energy directly acts on the molecules of the medium, converting it into heat. The penetrating nature allows both the interior and exterior of the material to be heated simultaneously without the need for heat conduction. The lack of heat dissipation conditions inside results in a temperature gradient where the interior is hotter than the exterior, creating a pressure difference that drives internal heat or moisture to permeate to the surface. In contrast, conventional heating methods rely on radiation, convection, or other external-to-internal heat conduction processes, which are energy-intensive, inefficient, and time-consuming. They are prone to clumping, require regular furnace cleaning, shutdowns for maintenance, and frequent replacement of components that are not resistant to high temperatures or corrosion.

1. Uses microwave crack antenna for energy feeding, ensuring even microwave distribution in the furnace chamber, uniform heating of materials, high heat utilization, low microwave reflection, and extended magnetron lifespan. Facilitates online replacement of magnetrons;

2. Microwave power is adjustable, allowing precise automatic control of temperature curves;

3. Reliable microwave shielding system ensures microwave leakage is less than 1 mW/cm²;

4. Touchscreen display and operation, capable of setting and storing multiple process curves, automatic operation, recording, and storage. Compatible with printers for real-time monitoring of temperature, humidity, and the drying process;

5. Can design and manufacture wide automated drying lines with large output and large shapes according to user needs;

6. Drying temperature controlled below 150 degrees Celsius, with dehydration and drying speed several to over ten times faster than conventional drying processes.

III. Unique design features of Zhongsheng microwave equipment compared to similar manufacturers:

1) Uses microwave antennas for large-area energy feeding to avoid localized overheating caused by concentrated microwaves.
2) The microwave heating cavity employs a wave homogenizing device to ensure uniform temperature of the heated materials.
3) Utilizes high-airflow variable frequency fans for dehumidification, ensuring timely removal of moisture from the furnace and preventing condensation inside. Condensed water in the dehumidification pipes is collected and discharged centrally to prevent dripping onto the ground.
4) Employs a fully automatic deviation correction mechanism for dynamic alignment, ensuring the conveyor belt operates within the permissible process error range (±25 mm). Uses an automatic tensioning mechanism to prevent belt slippage.
5) Equipped with online microwave leakage detectors at the inlet and outlet of the conveyor belt. Alarms are triggered automatically if microwave leakage exceeds standards. Microwave anti-leakage devices ensure leakage does not exceed 1 mW/cm² (the standard requirement is no more than 5 mW/cm²), significantly improving safety. Includes a handheld microwave leakage detector for随时检测设备周围其他地方的微波泄露量。
6) Multiple infrared thermometers are installed to automatically adjust microwave power based on temperature, allowing strict control of material temperature. This ensures precise temperature control in each section of the microwave drying furnace. Combined with variable frequency adjustment of conveyor belt speed, different process parameters can be adjusted at any time to ensure materials reach the required moisture content.

III. Introduction to Zhongsheng Thermal Energy Microwave Kiln Equipment:

Hunan Zhongsheng Thermal Energy Technology Co., Ltd. was established in 2011 with a registered capital of 12 million yuan. The company is primarily engaged in the research, development, and application of microwave thermal energy technology, as well as the design, manufacturing, and sales of microwave technology equipment. It develops and produces a series of industrial microwave kilns, including microwave drying equipment, microwave drying systems, microwave chamber drying rooms, microwave belt drying lines, microwave multifunctional experimental furnaces, microwave muffle furnaces, microwave vacuum experimental furnaces, microwave tube experimental furnaces, microwave pyrolysis experimental equipment, microwave high-temperature roller kilns, microwave high-temperature push plate kilns, microwave rotary kilns, microwave shaft kilns, microwave tunnel kilns, microwave rotary hearth furnaces, microwave annular kilns, microwave bell kilns, microwave cracking kilns, and microwave-electric hybrid kilns, among other industrial kiln equipment.

In March 2012, Zhongsheng's "Industrial Microwave/Electric Hybrid High-Temperature Heating Kiln Technology" passed a technical achievement appraisal organized by the Hunan Science and Technology Department. The technology was evaluated by a panel of seven experts from fields such as energy, new materials, electronic information, thermal engineering, automatic control, metallurgy, and refractory materials. The panel concluded that "the technological achievement is at the domestic forefront."

IV. Services: Technical exchange / Small-scale sampling / Visit / Equipment ordering

For inquiries about tunnel-type microwave drying equipment: Manager Xu: 156 7439 3491

Factory address: Tonghai Road, Yueyang Economic Development Zone, Hunan Province