Win the five major battles, see my "master move" ①

Five major battles "are in full swing

People are passionate about the 10,000 mu maritime frontier

In this war

Cadres and workers

Heart to a place to think, strength to a place to make

Actively integrate and participate

Based on their own, active work

Start from yourself, start from now, start from everyday

Show their own "tricks"

To contribute to the ultimate victory

Raw material operation area master class Li Zazhi

Trick: Block ore supply "fine, accurate, high"

As a high grade ore that can be directly injected into the furnace, "block ore" is the material basis of blast furnace smelting. Affected by the continuous rainfall in rainy season, some block ore is soaked by rain and is not easy to use and screen. "Wet" block ore enters the blast furnace and affects the smelting effect. In order to ensure the stability of the blast furnace, led the team members to carry out a series of research. By optimizing the layout of the storage space of the primary storage yard, the wet lump deposit is released, and the "fine" control of the lump ore is realized. Adopt the "dual-machine dry and wet mixing and collecting method", adjust the main belt expansion head under the stacker and reclaimer, so that the direction and position of the stacker and reclaimer 2500 and the Stacker and reclaimer 9000 are the same, to achieve the purpose of using dry and wet materials at the same time, and the mixing effect is more precise and accurate. According to the actual material, dynamically adjust the material flow to determine the dry material in accordance with 500t/h, wet material in accordance with 300t/h to ensure the quality of the furnace block ore stable, more "high" working efficiency. After taking a series of measures, the drying cost of wet block ore can be reduced by 100,000 yuan during the rainy season. At the same time, it overcomes the difficulty of balancing the supply and taking of the stacker and reclaimer with the same track.

Wan Xin, hot repair worker in coking operation area

Trick: The combination of spraying and patching, control the dry hole string leakage of the coke side of the furnace head

Engaged in coke oven maintenance for more than 20 years, has a wealth of practical experience. In view of the problem of dry hole string leakage, we actively learn from the original maintenance methods, and innovatively adopt the shotcrete method to eliminate dry hole string leakage by combining spraying and patching. By using the nozzle to spray the string leak point, the spraying and patching process is completed several times, and the spraying and patching treatment is carried out once after the wet slurry spraying and patching, which has played a good treatment effect. By spraying and replenishing the dry hole, the sulfur dioxide emission in the chimney is reduced, the production cost is saved, and the stable operation of the heating system is ensured.