Guanhua Ni

Title: Guanhua Ni: Innovator in Gas Drainage Technologies

Introduction

Guanhua Ni is a prominent inventor based in Qingdao, China. He has made significant contributions to the field of gas drainage technologies, particularly in the context of deep low-permeability gassy coal seams. With a total of 3 patents to his name, his work has garnered attention for its innovative approaches to drilling and sealing methods.

Latest Patents

One of Guanhua Ni's latest patents is the "Drilling-slitting-sealing-fracturing device and method for a deep low-permeability gassy coal seam." This device features a comprehensive drilling control system, a high-pressure water power system, and a fracturing and sealing control system. The drilling control system is designed to adjust the drilling direction and water supply pressure of the drill rod. The high-pressure water power system supplies varying pressures of water to the device, while the water pressure grading control system ensures optimal flushing and sealing pressures.

Another notable patent is the "Full-length screen pipe hole protection device and method with pressurized hole packing in soft coal seam." This invention includes a grouting system, a drainage system, and a hole fixing system. The grouting system injects a pressurized sealing material into the borehole to enhance sealing effectiveness. The drainage system facilitates gas drainage through air holes on metal baffle plates, thereby improving gas flowability.

Career Highlights

Guanhua Ni is affiliated with Shandong University, where he continues to advance research in gas drainage technologies. His innovative work has positioned him as a key figure in the field, contributing to both academic and practical advancements.

Collaborations

Guanhua Ni has collaborated with notable colleagues such as Weimin Cheng and Gang Wang. Their joint efforts have furthered the development of effective gas drainage solutions.

Conclusion

Guanhua Ni's contributions to gas drainage technologies through his innovative patents demonstrate his commitment to advancing the field. His work not only addresses practical challenges but also enhances the understanding of gas drainage in coal seams.