Iron Ore Microwave Reduction Industrial Kiln

Iron Ore Microwave Reduction Industrial Kiln, Microwave Heating Efficiency Contributes to Carbon Neutrality

I. Introduction to Microwave Heating Technology in Iron-containing and Rare Metal Ore Slag:

Iron ore reduced iron powder is first pelletized using microwave industrial equipment. After passing through a microwave hot air mixed drying furnace, the iron ore mixture is formed into pellets. These pellets are dried in the microwave hot air mixed drying furnace. The dried material is then roasted in a microwave kiln. The high-temperature dust generated is discharged from the top of the furnace and collected by a dust removal device. The flue gas (combustible gas) is directed to a tail gas combustion device for burning. The combusted tail gas enters the tail gas treatment system. The solid slag is cooled sequentially, and the cooled solid slag is crushed. The crushed solid slag allows for the extraction of sponge iron, which is used as raw material for steelmaking. The remaining waste slag is used as building material. This solution consumes 700 kWh of electricity per ton, with a general comprehensive investment of about 700 RMB per ton. The iron content after reduction is about 92-97%. Based on the above analysis, replacing traditional coal, electricity, and gas heating modes with microwave heating saves more than 30% energy; for every 1 kWh of electricity saved, 0.4 kg of standard coal and 0.997 kg of CO₂ emissions are reduced. The era of microwave heating has arrived, and microwave heating is becoming the new heating technology of the 21st century!

II. Introduction to Microwave Heating Principles and Microwave Technology Applications:

Principle of microwave kiln for iron ore reduced iron powder: Microwaves are a form of electromagnetic waves. Dielectric materials composed of polar and non-polar molecules, under the influence of a high-frequency microwave electromagnetic field, cause polar molecules to transition from their original random distribution to aligning according to the polarity of the electric field. The polar molecules in the medium shift from their original thermal motion state to following the alternating microwave electromagnetic field, generating intense friction and producing heat. Microwave energy is converted into thermal energy within the medium, causing the temperature of the medium to rise macroscopically. This is the basic principle of microwave heating. Microwave heating is a penetrating internal heating method, where electromagnetic energy directly acts on the molecules of the medium and converts into heat. Its transmissive properties allow 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. Conventional heating methods, such as radiation and convection, involve heat conduction from the outside in, which consumes high energy, has low efficiency, requires longer heating times, and is prone to coking. This necessitates regular furnace cleaning, shutdowns for maintenance, and frequent replacement of components that are not resistant to high temperatures or corrosion.

Features of microwave industrial kilns: Energy-saving (high conversion efficiency to thermal energy, saving more than 30% energy compared to traditional heating methods), environmentally friendly (no external emissions, effectively reducing the production of harmful substances), clean (materials absorb microwaves and generate heat themselves, without contact pollution, improving product quality and yield), efficient (fast heating speed, high energy utilization). Additionally, microwave industrial equipment produced by Zhongsheng can operate at temperatures up to 1600°C, with kiln temperature stability of ±5°C. It can be integrated with automated and intelligent operations, effectively improving the production environment.

III. Introduction to Zhongsheng Thermal Energy Microwave Kiln Equipment Industry:

Hunan Zhongsheng Thermal Energy Technology Co., Ltd. was established in 2011 with a registered capital of 12 million RMB. It is a microwave industrial company engaged in the long-term research, development, application, and equipment integration of microwave thermal energy technology in industry, covering design, manufacturing, and sales. The company primarily produces microwave multifunctional experimental furnaces suitable for enterprises and research institutes, as well as customized industrial microwave equipment. In the field of microwave applications, it holds 12 invention patents and 57 utility model certificates. Among these, microwave heating kiln technology was selected for the National Development and Reform Commission's fifth batch of energy-saving technology promotion catalogs. Compared to low-power household microwave ovens, Zhongsheng Thermal Energy's industrial microwave equipment meets the requirements of continuous operation, stable production, and equipment durability in industrial production. It is specially equipped with a 1.5 kW industrial-grade microwave source with continuously adjustable power, ensuring uniform, adjustable, and controllable furnace temperature. It guarantees 24-hour uninterrupted use. At the same time, a special crack antenna energy feeding device is used to ensure uniform microwave fields and prevent microwave reflection from damaging the magnetron, enabling the magnetron to operate 24 hours without shutdown. Easy-to-wear parts can be replaced online without stopping production. Additionally, microwave leakage prevention devices are employed: microwave leakage does not exceed 1 mW/cm² (standard microwave leakage is not more than 5 mW/cm²), significantly improving production safety, while other manufacturers generally only meet industry requirements. Zhongsheng's microwave drying lines, microwave experimental furnaces, microwave high-temperature bell kilns, microwave high-temperature push plate kilns, microwave high-temperature roller kilns, and microwave cracking kilns all have successful application cases.

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

Consultation for Iron Ore Microwave Reduction Iron Powder Kiln: Zhongsheng Xu R: 15674393491

Factory Address: Tonghai Road, Economic Development Zone, Yueyang City, Hunan Province