Since entering the second quarter, Dashucun Mine of Jizhong Co., Ltd. has not waited or relied on, strictly grasped the fine pipe, took safe production as the guarantee, stabilized production and efficiency improvement as the starting point, focused on key parts and key links, and made every effort to sprint the time task "double more than half".
In terms of creating a safe and stable environment, they have carried out the "Management Foundation Improvement Month" activity, focusing on the three key advanced planning work of "safety environment improvement", "safe and efficient production" and "refined coal production and profit". With the goal of preventing major accidents, we should highlight the advanced prevention of gas control, strengthen the standardized management of sensors, and eliminate air leakage in goafs. Implement gas variable management, take active and effective measures to prevent and solve gas problems, innovate and apply 6 sets of gas grading control devices and AI drilling site video management automatic counting system, comprehensively build gas extraction refinement, and ensure that the working face passes smoothly through faults and tunneling faces smoothly through comprehensive gas treatment measures, and the average return air gas concentration is kept below 0.4% during production, and the average pressure-relieving gas extraction pure amount at the 174303 working face is maintained at about 6 cubic meters per minute. The gas concentration in the goaf was further reduced.
Work around the center of the mine, wall chart operations, reverse the construction period, and strive to grasp the key links that restrict production. They fought a big mining battle, carried out labor competition activities in underground units, paid close attention to the regular cycle, and optimized the operation process and construction process. The main mining 172406 working face needs to continue to extend the support and slide with the pushing, and the support needs to be extended 2 to 3 frames every day, and the front and rear slides are 2 to 3 sections, and the team deployment is optimized, and the parallel operation of each process has increased to 129 hydraulic supports so far. In the roadway construction drill site in the five mining areas, the parallel operation of advanced geological drilling and excavation construction is set up, and the roadway can be quickly excavated throughout the month, which solves the problem of stopping the first 5 days of drilling every month. Continue to use the roadway repair machine to expand the roadway, and use the WPZ-37/600L roadway repair machine to go undercover in the groove under the 172406 working face, reduce the workload of manual use of air picks and undercover, save 2 labors per day, and realize safe and efficient renovation operations.
In addition, they have gone all out to promote the standardization of safety production to create a higher level. Innovate and carry out the creation of "222" high-quality projects, decompose task indicators, report progress daily, and the whole mine is in a hurry to compete for progress. In accordance with the requirements of "bright spots, distinctive roadways, and regional innovations", the high-quality excavation head was built with high standards, and "one line for pipeline hanging, one line for equipment propulsion, one line for material stacking, and one line for cable hanging". Establish a strict and detailed safety production standardization management system, improve the safety production standardization assessment mechanism, standardize the safety production standardization work of the district team with the system, promote the application of "four cards" in all posts and on the ground, mobilize the risk prediction and pre-control of employees before the operation, and promote the development of good habits of employees to go to standard posts and do standard work, so that everyone, everything, and always have standards, learn standards, understand standards, and operate according to standard requirements has become everyone's action consciousness. (Ma Wenqiang) (Photo courtesy of Jizhong Energy Co., Ltd.)