An accidental opportunity made the old man Chen Xuelian, who was nearly seventy years old in silver, inspiration. He and the teacher of Gansu Agricultural University, South Korea, have studied and perfected, and finally developed a mechanical sand barrier component for desert treatment, and recently obtained the national invention patent certificate. In the face of the recent dusty weather, Chen Lao said that our desire to prevent wind and sand and improve the environment is even stronger.
Patent application
The 69-year-old Chen Xuelian is an engineer at the Northwest Institute of Mining and Metallurgy. In May 2004, Chen Xuelian found a dry, but very soft substance in the waste that was cleaned up by a manufacturer. He thought that if this kind of water-preserving property is technically treated for desert treatment or agricultural production, it should be able to protect the sand and sand, but it lacks ideal packaging.
In the exploration and research of the shape and materials of the packaging materials, Chen Xuelian and the teacher of Gansu Agricultural University, South Korea, suddenly received the enlightenment from the Yongdeng County sand land to protect the alkali, and then turned the test target directly to the desert management, and designed a kind of Stone structure for engineering sand control.
In July 2004, they submitted a patent application to the State Intellectual Property Office. After more than a year of revision and argumentation, the State Intellectual Property Office officially granted them the invention patent certificate.
Water and sand control
Chen Xuelian said that the new type of mechanical sand barrier stone member they invented can be equipped with a 10 m wide protective belt in the area where the sand is flowing or as a protective belt in front of the oasis edge separation belt to serve the interest, wind and sand. The effects of pressing alkali, cooling, and isolating are beneficial to the survival and growth of sandy plants and subsequent drought-tolerant grasses and shrubs.
Waste change treasure
According to reports, the stone sand barrier components can be made of chemically active fly ash, coal gangue, chemical gypsum, lime, sand and other industrial solid waste, and the performance meets the requirements for use. Especially in Xinjiang, Gansu, Ningxia, Inner Mongolia, Hebei and other places where land desertification is severe in China, many thermal power plants, coal mines, smelters and chemical plants are concentrated. The use of solid waste can not only improve the local environment, but also Use a relatively low freight rate to transport the stone sand barrier components to the sand area that needs to be treated.
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