The first fully mechanized mining team is the "ace team" of the coal mining front of Lu'an Chemical Yuwu Coal Company. The maintenance class is a strong guarantee and fist team for this team to stabilize and produce high yields. They are rigorous and meticulous, and use every overhaul to ensure the safe, stable and efficient operation of the equipment.
Be cautious and have no worries. Safety production is the belief engraved in the bones of maintenance personnel. The company's fully mechanized mining team maintenance team has gone from overhauling after having problems to the current pulse consultation and advanced research and judgment, forming a unique advanced maintenance management model of the team. At the daily pre-job ceremony, they insist on accident case study, confirmation of the production operation of the previous shift, maintenance and distribution of equipment on duty, etc., and practice the safety concept of "winning in the standard, winning in the implementation, and safety is the greatest benefit" with practical actions. Since 2023, the failure rate of wearing parts such as safety valves and filters required for the team's daily production has decreased by about 15%, and the overall equipment failure rate has been greatly reduced.
The efficient operation of the equipment is the most direct manifestation of the maintenance quality. Therefore, the employees of the maintenance team often use their brains to "add weight" to the equipment. Niu Xiaofeng, the leader of the maintenance team, proposed to optimize the hydraulic system from the source of the remote liquid supply emulsion pumping station, increase the frequency of cleaning the filter and liquid tank, and transform the liquid return filter device to reduce the wear and tear of the valve core of each part of the bracket, prolong the service life of the accessories, and reduce the consumption cost of the bracket accessories.
The team members have put forward a number of "golden ideas" that have been adopted by the company, such as "drainage point equipment transformation to achieve automatic drainage" to reduce costs and increase efficiency, while avoiding unnecessary waste of manpower; The anti-rust treatment of the single column in the N1100 Huishun along the empty roadway can extend the service life of the single column, save the cost of supporting materials, reduce the labor cost of replacing the single column for employees, and also explore the experience of Yuwu Coal Company to promote the empty roadway; The invention of the "mining mobile scaffolding platform" saves time and effort for the operators and avoids the occurrence of small bumps and bumps of the scaffolding personnel.
Last year, when the first fully mechanized mining team just took over the new working face, due to the large drop of a belt, when running at full load, there would be a number of phenomena that were not conducive to the regular cycle during the emergency shutdown. The members of the maintenance team rose to the challenge, increased the number of belt damping plates, increased the belt contact surface, increased the bearing weight with dense rollers, and finally welded the special H frame to increase the support point of the belt side rod, increased the overall stability of the belt frame, and avoided the occurrence of unfavorable factors in the operation process. It is the collective efforts of the employees of the maintenance class that since 2023, 9 inventions such as "A Conveying Device for Coal Mining", "A Drill Cuttings Collection Device for Fully Mechanized Mining Face" and "A Quick Tightening Wrench Tool" have won national utility model patents.
In terms of material management, the maintenance team of the fully mechanized mining team strictly implements the "Material Management and Use Regulations" in the team, links material consumption with employee incentive wage coefficients, and starts from small things in accordance with the principle of "who receives, who is responsible", so that a wire and a screw must be reasonably used or handed over in time to avoid waste. At the same time, the team encourages employees to repair old and reuse waste, make small changes and make reasonable suggestions, and reasonably repair and clean up bad valves and pipelines. The employees of the maintenance class have changed from the past "bad to get new" to "what is saved is earned", which eliminates waste from the source, reduces costs and improves efficiency. So far, the first fully mechanized mining team has saved a total of 165 costs for materials and accessories930,000 yuan.
The team strictly implements the "Yuwu Coal Industry "Unsafe Personnel", "Unsafe Team" and "Unsafe Posts" Management System", does a good job in risk assessment, identification and control of the working face, pays close attention to special periods, weak links, key parts and key groups, and discovers, disposes of and solves the unsafe behaviors of people and things on the site as early as possible, so as to truly implement the work within the scope of responsibility and ensure that the actual results are achieved. At the pre-job ceremony every day, a team leader is appointed to test whether the employees drink alcohol, and a hypertension measuring instrument is equipped to monitor and test the health of key personnel to ensure the mental state of the personnel on duty that day; At the same time, employees are encouraged to participate in safety management, supervise each other, remind each other, check the risks and hidden dangers of the post, and ensure the regular and orderly production of the site with the active safety of all employees.
Master Li, please draw the installation chute sequence diagram of the entire front slip, and say the necessary parts and safety precautions for the daily maintenance of the front slip. This is a scene where the Niu squad leader spot-checked the theoretical knowledge and practical experience of Master Li, the pre-shift maintenance worker. The maintenance class also aims to improve the quality of employees, and adopts a combination of pre-job questions, underground on-site combat and examinations at the end of the month, so as to train the basic skills of employees in a targeted manner. Jiang Bin, deputy squad leader, said: "The squad leader not only requires us to have excellent theoretical knowledge, but also requires us to pass the practical skills on site. For employees with low skill levels, the team has adopted the method of focusing on job skills training in batches, providing on-site guidance and on-site solutions in the form of mentors and apprentices, so as not to let an employee fall behind. ”
Chang Chen, the most skilled electrical maintenance worker in the team, is not good at talking, and everyone says that he is "a teapot to cook dumplings - he can't pour out with a mouth". Therefore, he practiced PPT production and CAD drawing, and taught the skills he mastered to young workers in the form of PPT and CAD drawings. In addition, the team also carries out skill improvement through various forms such as post training, PPT explanation, daily practice, mentor leading apprentices, and five regular meetings on Tuesdays. Whenever a new employee enters the class, the Niu squad leader will arrange experienced masters to form a "gang of one" pairs with them, and teach them job operation skills and safety precautions hand-in-hand, so that college graduates will combine theory and practice, and become technical personnel who can take charge as soon as possible.
Yuwu Coal Industry Company's fully mechanized mining team maintenance team in the struggle to create change and innovation, in the creation of courage to take the lead, they can do officers, will do practical things, maintenance iron army team, for the development of the enterprise.
Wu Yue, Liu Donghai, Fan Shengjie.