two thousand and twenty-one year twelve month twelve Day ～ twenty Japan Hunan Valin Xianggang and Hunan Province Zhongsheng Thermal Energy Science and Technology Co., Ltd. cooperated in Xitieshan, Golmud, Qinghai Province, and carried out the industrial test of direct reduction of zinc containing solid waste (converter dust, blast furnace ash) of Xianggang and iron containing tailings of Qinghai Hexin Company with microwave industrial pilot production equipment, and achieved preliminary success. The test temperature of the microwave industrial equipment reaches one thousand and fifty ℃～ one thousand and two hundred The annual treatment capacity is 10000 tons, and the zinc containing solid waste dezincification and tailing reduction roasting of Xianggang have achieved the expected results.

Converter dust and blast furnace ash are solid waste materials produced in the production of iron and steel enterprises. Because zinc can not be recycled, it needs to be de zincified; The iron bearing tail mud of Hexin Company belongs to chemical solid waste, which contains iron About 60%. Both solid wastes have high utilization value after being treated by direct reduction process, which can turn waste into treasure. But if you don't handle , not only occupy the site, pollute the environment, but also cause waste of resources.

utilize Microwave processing The above-mentioned solid waste is an epoch-making technological revolution. Because microwave processing technology has specific advantages: strong microwave penetration and high heat utilization, The reduction dezincification effect is good. And it is environmentally friendly, clean and emission free. Energy conservation, environmental protection and resource reuse have become the strongest voice of the industrial revolution in today's era. The success of the industrial test of microwave technology and equipment for solid waste treatment will also be Carbon neutralization The era of carbon emissions requires that the strongest sound be injected with a beautiful note.

The success of this industrial test has laid a solid technical foundation for our subsequent industrial application. On the one hand, we have accumulated experience and lessons; on the other hand, we have obtained valuable technical data and complete process flow. For future industrial production, further increase the annual treatment capacity such as 50000 tons, 100000 tons, 500000 tons, etc., providing practical technical support.

Microwave technology and equipment Meet the requirements of national low-carbon environmental protection industry policy, can realization Steel and chemical industry industry "Green development, circular development and low-carbon development" And resource reuse 。 microwave Implementation of technology Will also relieve our country Insufficient raw materials in iron and steel smelting industry , lifting The environmental protection level of the steel industry. The whole production process is closed and the generated gas is effective recovery Utilize and reduce natural resources waste 。 It is a good project beneficial to society, human beings and nature. proposal Steel smelting enterprises and investment companies in this project Give strong support to make the project operate as soon as possible and give full play to its economic and social benefits.