2. I mainly participated in two projects, namely, "Research on short-wall fully mechanized mining equipment and technology under the conditions of Datong and Datong" and "Research on mining technology of double-height working face with domestic fully mechanized mining equipment under the conditions of Datong and Datong". In 2003, he won the "Top Ten Scientific and Technological Achievements in Coal Industry" award, the first and third prizes of science and technology and personal certificate.
3. Presided over the scientific research project "Development and Research of Hydraulic Support with Hard Roof and Large Mining Height-ZZ9900/29.5/50/50 Four-pillar Support Shield Hydraulic Support", and won the first prize of science and technology and personal certificate of China Coal Industry Association in 2005.
4. The main designer's "Mobile Substation Protection Device with Low Voltage Feedback and High Voltage Implementation" and "Shield Hydraulic Support Supported by Short Shield Beam" obtained the national utility model patent and certificate.
5. Research on Hydraulic Support for Low-level Caving under Hard Coal Seam Network was appraised by China Coal Industry Association in 2005, and was rated as the international leading level by the expert committee.
6. He presided over and undertook the academic research and summary of "Development and application of electric haulage drum shearer with high mining height in hard coal seam MG 750/ 18 15-GWD", and completed a research report of more than 20,000 words. At the end of 2006, it was appraised as an international advanced level through the appraisal of technical research achievements of Shanxi Science and Technology Department.