FENY, an enterprise located in Ningxiang Economic&Technological Development Zone, was listed among the national intellectual property advantageous enterprises in 2022 by the China National Intellectual Property Administration.

And it was also selected as one of the 15 green manufacturing system solution providers in Hunan by the Industry and Information Technology Department of Hunan Province. Since 2009, FENY has completed over 300 cases with the paste filling mining technology.

To achieve the goal of no ground surface settlement or water damage

Filling mining is also called replacement mining, which realizes the recycle of mining. The paste filling mining technology is the most advanced filling mining technology, which meets the development trend and requirements of China's mining safety and environmental protection.

Under the traditional coal mining process, the original geological structure will be destroyed. The ground subsidence is unavoidable and the rock strata fracture also easily causes groundwater loss.

In addition, coal mining produces the coal gangue, which also increases the burden of environmental management in mining areas.

FENY's paste filling system and complete sets of equipment offer the "optimal solution" to this problem. With FENY solid waste paste filling technology, the coal gangue and other waste materials produced in the process of coal mining can be used to make colloid and fill into the goaf. In this way, the ground deformation can be controlled within 10 centimeters almost without ground surface settlement.

In the past, given that the mining rate of coal mines was only 30%-40%, it was impossible for mines to continue mining. Thanks to the paste filling technology, the mining rate can be increased to 90%. With mining waste safely consumed, the productivity of the mine has been greatly improved and the service life of the mine has been extended.

FENY has independently developed the full tailings paste filling system, which solves the serious safety and environmental problems of metal mine tailings pollution, land occupation, tailings pond collapse and water pollution from the source.

Unique service in China

In recent years, FENY has developed and optimized a number of core technologies in the field of mine solid waste paste filling, which can provide "one-stop" service for the whole life cycle of the products.

FENY has covered the whole paste filling industry chain through more than ten years of independent innovation and deep plowing in the mining solid waste paste filling technology. It boasts a professional technical team of more than 200 people and cooperates with such famous universities as the Central South University and a number of authoritative academicians, experts in manufacturing, education and research.

At present, over 300 mining enterprises at home and abroad have adopted FENY's technologies and equipment.