Mining paste filling technology is a comprehensive technology that processes solid waste generated during mining processes (such as tailings, coal gangue, fly ash, slag, etc.) into paste like slurry on the ground and transports it to the underground goaf for filling through specific technical means. The following is a detailed introduction to the technology:

1. Technical Overview:

The mining paste filling technology integrates multiple aspects such as solid waste treatment, paste preparation, transportation, control, safety, and environmental protection, forming a complete solution.
This technology not only achieves effective utilization of mining waste, but also improves the resource utilization rate of the mine and helps improve the underground working environment.
2. Technical application:

The paste filling technology has been widely applied in multiple mining areas in China, such as Zibo, Jining, Fengfeng, Jiaozuo, etc., and has achieved significant results.
Taking Huize Mining as an example, this technology has been successfully applied since 2006 and has been running steadily for 18 years, effectively preventing and controlling the risk of stress disasters in deep well mining, improving the utilization rate of mining resources, and achieving waste free mining.
3. Technical features:

The paste filling technology has the characteristics of high efficiency, environmental protection, and safety, and can achieve comprehensive treatment and utilization of mining waste.
By using specific technical means such as deep cone thickeners and paste preparation systems, solid waste is converted into high-quality paste slurry and transported to the underground goaf for filling.
4. Technological development:

With the continuous progress and innovation of technology, the filling technology of mining paste is also constantly developing and improving. For example, the Wushan Copper Mine has improved filling efficiency and production stability through dual system operation.
In addition, the application of new materials and optimization of processes have further improved the performance and benefits of paste filling technology.
5. Technical specifications:

In order to ensure the smooth implementation and effective operation of mining paste filling technology, the country has also formulated relevant technical specifications, such as the technical specifications for the intelligent system of high concentration paste filling in non-ferrous metal mines, which put forward clear requirements for the system architecture, process detection, data acquisition, automation control, and other aspects.
In summary, mining paste filling technology, as an advanced mining waste treatment technology, has significant advantages and broad application prospects in improving resource utilization, improving underground operating environment, and achieving green mining construction.