Haijiang Zhang

Title: Haijiang Zhang: Innovator in Mining Technology

Introduction

Haijiang Zhang is a prominent inventor based in Beijing, China. He has made significant contributions to the field of mining technology, particularly in methods that enhance safety and efficiency in coal mining operations. With a total of two patents to his name, Zhang's work is recognized for its innovative approaches to complex challenges in the industry.

Latest Patents

Zhang's latest patents include an "Equipment system for no-roadway no-coal-pillar retained roadway mining method." This equipment system is designed for a self-retaining mining method that comprises a transition support, an end support, a following support, and a fast-retracting support. The system allows working face gateroads to remain stationary during mining, enabling a coal mining machine to cut a neat coal wall at the end of a district. The entry rib is automatically formed after roof caving, facilitating a gateroad in a re-mining process. The coal mining machine operates under digital control, ensuring precision in cutting the coal wall to create a vertical straight line, which serves as the entry rib of the gateroad. Additionally, a scrapper conveyor works in conjunction with an arc-shaped coal grabbing plate to effectively clean up float coal at the end.

Another notable patent is the "System and method for testing gas migration process in coal-rock mass." This method involves selecting a cylindrical coal sample and applying axial and radial pressures under sealed conditions, along with temperature increases to desorb gas absorbed by the coal. The gas is then guided through a passage for detection of flow rate and pressure, allowing for analysis of gas composition and content. This method provides a theoretical and data foundation for researching gas outburst accidents in coal mines, making it a valuable tool for migration research in deep coal-rock masses.

Career Highlights

Zhang has worked at the China University of Mining and Technology, where he has contributed to academic research and innovation in mining technology. His expertise and dedication to the field have positioned him as a key figure in advancing mining practices.

Collaborations

Throughout his career, Zhang has collaborated with notable individuals such as Manchao He and Chunguang Wang. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and innovation in mining technology.

Conclusion

Haijiang Zhang's contributions to mining technology through his patents and collaborations