As an important equipment of steelmaking, the safety and stability of continuous casting machine is directly related to steelmaking production. Steel mill continuous casting maintenance is mainly responsible for the maintenance of casting machine equipment, the team to the stable operation of casting machine equipment and low cost as the goal, to ensure the smooth progress of the production of steel mill continuous casting workshop, in the past year to achieve "safety zero accident" and "key equipment zero accident", won the Hebei Xinda Group 2023 advanced section (team) title.
Zero accidents for key equipment
"The equipment is stable and normal operation is our mission and responsibility," fitter technician Huang Shuai said: "Daily we not only do timely maintenance, but also prevent equipment failure in advance to ensure that the equipment is always in good condition."
In the daily management of the team, the continuous casting maintenance personnel of the steel mill pay attention to the inspection of the equipment points, once the equipment is found abnormal, the abnormal situation is immediately analyzed, and the inspection and maintenance are arranged according to the emergency level, so as to timely discover and properly deal with the hidden dangers of the equipment. In a daily spot inspection, careful maintenance personnel found a small crack in the equipment, after the impact assessment of the crack point decided to use the equipment during repair to replace, no impact on production.
The continuous casting maintenance is carefully organized and reasonably arranged according to the deployment of branch factories and sections, and the important problems found in peacetime are constantly accumulated and summarized to promote the maintenance and maintenance of equipment. Under the careful care of continuous casting maintenance personnel, there was no key equipment accident in the continuous casting equipment in the past year, which effectively guaranteed the production.
Improve the benefits of waste and create benefits
Steel mill continuous casting and maintenance are all "good hands who will live", "repair the old and waste" is everyone's specialty here. Reducer and other offline equipment, they disassemble this, the available parts will be reassembled online use, in the eyes of continuous casting maintenance people, even a nut is "baby". In the past year, the cost of continuous casting maintenance alone has saved nearly 500,000 yuan.
The heat-resistant material in the continuous casting oven fell off, causing the oven to be damaged. The continuous casting maintenance personnel used the offline waste oven to disassemble it and repair the damaged oven. At present, the repaired oven has been in use for half a year, which saves the procurement cost of spare parts for the oven about 100,000 yuan.
Continuous casting maintenance personnel are not only "skillful" but also "spiritual", they can not only turn "waste" into "baby", but also play a "big role" with "small methods".
In the daily equipment inspection, continuous casting maintenance found that the oil and gas lubrication of the large roller table after cutting is uneven, the oil demand of the large roller table is large, and the oil demand of the small roller table is small, but the same group of oil and gas lubrication stations are lubricated during lubrication, resulting in uneven lubrication and waste of oil products. In this regard, the maintenance personnel immediately began to improve, cooperate with electricians to program the oil-gas lubrication host station, add a set of oil-gas lubrication station according to the actual lubrication needs, and achieve accurate lubrication through this improvement. It is estimated that one barrel of lubricating oil (0.17 tons) can be saved per month, which not only further improves the service life of the roller table, but also reduces the number of manual maintenance.
There are many small improvements like this, the site of a equipment water filter damage, maintenance personnel use scrapped offline filter disassembly to maintain the damaged equipment, at the same time in order to improve the service life, according to the use of demand also added a set of coarse filter, to prevent the filter screen blockage damage filter. Before the improvement, the original equipment is disassembled and inspected at least twice a month, and after the improvement, it can be disassembled and inspected once two months, reducing the loss of spare parts.
During the overhaul and dismantling of the equipment, the shaft of the steel machine was found to be damaged, and the maintenance section immediately contacted Hebei Tianyue Laser Remanufacturing Technology Co., Ltd. to repair the shaft, so that it could be re-used on the line, saving the procurement cost of spare parts. Steel machine coupling nylon rod is seriously damaged, every month to be replaced, maintenance personnel according to the site of the coupling to transform, draw spare parts drawings, by the Tianyu laser processing, which reduces the number of nylon rod replacement and the labor intensity of workers.
In continuous casting maintenance, such small improvements are numerous...
Safety zero accident
Promote safety with standardized management. The team pays attention to safety education and training, and each team takes advantage of daily pre-work or after-work meetings to organize employees to learn safety knowledge related to maintenance operations and constantly improve their awareness of safety operations. With the strict requirements of "safe operation rules" and "technical operation rules", we pay attention to the safety inspection and standardized construction during the maintenance process, improve the level of safe operation, strictly reward and punishment measures, promote the safety work of the team, and achieve "zero safety production accidents" in 2023 continuous casting maintenance.
The achievements are engraved on the list, and the future is especially promising. Torrent Yong into the development of the road, Hebei Xinda Group companies, production plants, section teams should hold high the banner of "attacking and creating results", gather the force of "breaking through the thorns", anchor business objectives, firmly establish a sense of development, take the initiative to enhance confidence, expand the market to control costs, improve service awareness, to the market to benefit, to management to benefit, Make every effort to complete the business objectives of the company in 2024, and make every effort to achieve greater breakthroughs in all work!
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