The establishment of lean production line is the key for enterprises to improve production efficiency, reduce costs and enhance competitiveness, and the normal operation of equipment plays a basic and decisive role in this process. Hebei Rongxin Iron and Steel Co., LTD. Raw material factory vigorously promote the basic management of equipment to improve the work, by strengthening the spot inspection to eliminate equipment hidden dangers, improve maintenance standards to extend the service life of equipment, and improve the field of equipment process defects affecting fuel consumption, to provide a solid equipment guarantee for the creation of lean production line.

Keep an eye on the source and eliminate equipment hazards

The raw material factory should improve the construction of the point verification and repair system, formulate practical performance evaluation standards, strictly implement the tripartite division of labor agreement and equipment operation procedures, and clarify the responsibilities of the tripartite division of labor, so that the point verification and repair system can achieve competence and sharpness. Re-sort and improve the equipment charter system, and appropriately adjust the number of workers charter. Regularly organize inspectors and engineers to study the experience of advanced enterprises, so that the basic management of equipment is fundamentally improved.

The raw material factory strengthens the maintenance of mechanical equipment and strictly implements the "five fixed" management of lubrication. In the inspection process, I communicated with the post in time to understand the operating status and control status of the equipment, carefully reviewed the operating records of the equipment, and accurately identified the problem and restored its function in the shortest time when there was an emergency. Combine the production section, maintenance section and electrical instrument section to make the three-level hidden trouble ledger, compare and verify the hidden trouble ledger with the hidden trouble ledger of the point inspection station, and communicate and complement each other. The hidden trouble that can be handled must be rectified and eliminated, and the hidden trouble that can not be stopped should be taken as the basis for the overhaul project and included in the overhaul plan. Strengthen the lubrication management, the oil test grade of each oil station is maintained at 6-7, and the equipment hidden danger rectification rate is maintained at more than 90%.

Keep an eye on the key and extend the equipment cycle

In view of the formulation of the overhaul plan, the raw material factory strictly follows the principles of collection by the monitor, submission by the section chief, supplement by the department, and demonstration and determination of the overhaul meeting of the factory department, so that the hidden dangers must be fully exposed, the overhaul plan can be reasonably formulated, and the project can be effectively eliminated. Optimize the inventory structure, reduce over-stored materials and sluggish materials, maximize the utilization of inventory resources, at the same time, strictly control the spare parts declaration plan, do a good job in inventory structure analysis, make good use of inventory materials in the primary warehouse, on-site spare parts area and secondary warehouse, and reduce unnecessary purchases. Implement the reward system for repairing old and benefiting waste, reduce the input and use of new materials, reuse the consumable equipment parts many times, eliminate waste, and improve the utilization rate of equipment.

The raw material factory constantly strengthens the balance control of spare parts and machine and material costs, conducts a comprehensive analysis of the inventory structure, and re-plans the utilization of sluggish materials. On the one hand, reduce the procurement funds, on the other hand, optimize the inventory structure, achieve accurate, effective, reasonable and no waste, actively urge the arrival of spare parts, communicate with the supply department in time, and make special docking once a week. In addition, do a good job of acceptance of spare parts, strictly control the quality, resolutely refuse to accept unqualified spare parts, ensure that spare parts overhaul online to meet the requirements of use, to avoid unnecessary downtime.

Keep an eye on the threshold to save production costs

In order to reduce fuel consumption, the raw material factory strictly controls all aspects of fuel management, carries out detailed analysis of cost items one by one, and ensures that the tasks of index optimization and efficiency improvement are completed. At present, how to ensure the crushing particle size while ensuring that the fuel is not too crushed has become an urgent problem to be solved in the preparation process of sintered fuel. In the sintering process, the fuel particle size plays a crucial role. Therefore, the raw material factory to the on-site fuel screening system system reform, improve the permeability of the sintering process while ensuring uniform fuel distribution, effectively control the average particle size of the fuel, reduce segregation during the cloth process, improve the sintering machine utilization coefficient and yield, reduce the proportion of fuel powder part, to prevent the fuel burning speed, combustion heat loss and fuel itself affected by air flow loss. Thus, the burnup in sintering process is reduced.

The raw material factory designed and constructed the buffer bin of sintering machine to install the steam preheating device. In the construction process, the pipes and equipment were prefabricated in sections, unified welding and assembly were made by using the maintenance time, and holes were opened in the mine tank site. By using steam preheating to increase the mixture temperature, the sinter index, especially the hardness index, can effectively reduce the proportion of ore return and improve the sintering machine productivity. At the same time, the resistance of air flow through the wet layer is reduced, which can reduce the pressure of the main extraction fan and save electric energy.

Hard practice internal strength, lean management to open a new bureau. Hebei Rongxin Iron and Steel Co., Ltd. will break the conventional thinking, accurately implement the responsibility, strategically grasp the general trend, plan the overall situation, tactically find the method, precise force, continue to deepen the lean management practice, constantly enrich the lean management results, strengthen the construction of lean culture, lean management for new quality productivity, build a perfect production operation system. Make progress while maintaining stability, work hard and innovate, promote enterprises to move forward to the high realm of becoming stronger, better and bigger, and comprehensively promote high-quality transformation and development to a new height and new level!