The work of cost reduction and efficiency improvement has been carried out in the group for many years, effectively mobilizing the enthusiasm and initiative of all employees, strengthening everyone's sense of "ownership", enhancing the sense of responsibility for work, and achieving good results of energy saving and efficiency reduction, environmental protection. The effectiveness of cost reduction and efficiency improvement work is obvious to all, but Xinda people continue to self-pressure, fully self-reflection, challenge to higher goals, and seek new innovation.

Hebei Rongxin Iron and Steel Co., Ltd. raw material factory adhering to the concept of green high-quality development, grasp the details, find the gap, constantly refine the post responsibility, improve the process standards, improve the process system. In the production and operation management efforts continue to increase speed, continue to strengthen cost control, fully explore the potential of cost reduction and efficiency, strengthen tracking and efficiency, implement work results, effectively promote the implementation of cost reduction and efficiency, and effectively promote the company's business development.

Drum strength is an important index reflecting the mechanical strength and physical properties of sinter. Too low drum strength will lead to an increase in ore return, a large consumption of energy, and the deterioration of the metallurgical properties of sinter, ultimately affecting the blast furnace running. In order to reduce energy consumption, achieve the purpose of cost reduction and efficiency increase, and provide the basis for the company's normal production, the raw material factory will find ways, measures and implement in improving the strength of the sinter drum.

Quality first

Stabilize production and then reduce costs

Strengthen the management of the material yard, strictly control the quality of entering the factory, and improve the strength of the drum. Due to the variety of materials in the material field, the raw material factory scientifically manages the material field, puts the original fuel and flux neatly, and has clear marks to eliminate mixing. The proportion of dust dust consumed in the sintering workshop is calculated according to the quantity, and the proportion of acid return and block return powder is mixed evenly before use.

The sintering workshop pays close attention to the incoming quality of the sintered fuel. When the calorific value of the fuel is high, the calorific value is greater than 6700Kal and the quantity consumption is small. Coarse fuel particle size increases the difficulty of four-roll crushing and reduces the service life of four-roll. If the fuel particle size is fine, it does not meet the production requirements, the combustion is insufficient in the production process, and it is taken away by the flue gas, resulting in increased fuel consumption, and it may also cause electric dust agglomeration in serious cases. Therefore, raw material factories pay close attention to the caloric value and particle size changes of fuel, refuse to muddle through with shoddy and adulterated raw materials, and resolutely reject unqualified quality indicators.

maintenance

Give full play to the excellent performance of equipment

Grasp the source, strengthen the batching operation. The raw material factory uses the opportunity of double-machine maintenance to replace the roller and the cleaner of the batching scale, clean up the accumulated material, and mark the belt scale to ensure the accuracy of the material cutting; In order to serve the next process, install the screen at the feeding port of all belt scales, and clean up the debris and bulk in the batching room; The white ash and dust dust are transferred to the white ash bin by air instead of being directly mixed on the belt, so as to prevent the influence of the ash on water and ferrous iron, and to lay a foundation for improving the strength of the drum.

Improve the process

Multi-party coordination to reduce consumption

Reduce the moisture of the mixture, improve the pelleting effect, lift the material thickness and reduce the machine speed. According to the production ratio and the actual production situation, the moisture of the mixture was reduced from 8.6%-9.2% to 8.0%-8.5%; The machine speed is stable from 1.8m to 2.0m/min to 1.5m to 1.7m/min, the end temperature is 380-430 degrees for No. 1 machine and 480-520 degrees for No. 2 machine, the cloth thickness is increased from 800mm to more than 850mm, which increases the heat storage effect, reduces the consumption of solid fuel and improves the strength of sinter drum.

Strengthening process

Comprehensively improve working ability

In order to standardize the post operation, the raw material factory unified preparation of operation instructions, process assessment system, weekly training for batching, main control, mixing and sintering workers, improve professional skills, to achieve unified operation. At the same time, the sintering technician and the production department carry out process inspection every day, and reward and punish those who violate the process discipline strictly according to the standard.

Incentive mechanism

Mobilize the enthusiasm of cost reduction

In order to mobilize the enthusiasm of employees, the raw material factory has formulated a key incentive program, and after the target is reached, the relevant personnel are rewarded, which greatly stimulates the enthusiasm of employees, effectively mobiles the enthusiasm and initiative of the post, machine repair and electrical instrument, and plays an important role in comprehensively improving the drum qualification rate.

Through the adjustment of various process facilities and parameters, air leakage control, improve the enthusiasm of post workers and other measures and ways, the pass rate of sintering drum has been greatly improved, and the strength of sinter drum has achieved 76.66%, which is the best record in history. It is estimated that the weekly effect is about 220,400 yuan.

The eagle has the courage to fight, only more plump and powerful; Green pine experience wind and rain, just more vigorous tall and upright; The river is happy to pentium, only more fighting spirit. Xinda people should continue to make efforts in the inheritance and innovation of historical achievements and the reform and change of the past insufficient, for a long time, adhere to the management ideas of source reduction, mechanism reduction, science and technology reduction, and management reduction, make every effort to create new efficiency growth points, ensure that cost reduction and efficiency action go deep and solid, to win confidence to win power, to build extraordinary achievements!