wanhaorefractory

1. The furnace is out of order. In many cases, the blast furnace condition is abnormal due to poor quality of the raw fuel or improper basic operating system. 2. Operational errors The prelude to the freezing of the hearth is the furnace cool. It is normal for the blast furnace temperature to fluctuate within a certain range, and the cool furnace that causes the hearth to freeze is often caused by improper operation. 3.A large amount of cooling water leaks into the hearth. 4. Long-term rest or sealing furnace Long-term rest is a common cause of freezing of the hearth even if there is no water leakage from the cooling equipment. 5. Equipment accident If the test is not enough before the start of the furnace, it will often cause equipment accidents. 6. The quality of raw fuel deteriorates. Wanhao is a manufacturer who is specialized in designing various kinds of furnace and making refractory products for electric furnace, ladle, tundish, bla

Private steel enterprises' profits in the first three quarters rose by 130%. Steel mills still have the urge to expand production. On November 3, the latest data showed that in the first three quarters of this year, 160 private steel enterprises included in the statistics of the All-China Metallurgical Chamber of Commerce achieved a total sales volume of 1.92 trillion yuan, a year-on-year increase of 12%; net profit reached 168.3 billion yuan, a year-on-year increase of 130%. In addition, the asset-liability ratio was 61.33%, 8% year-on-year down. The release of steel output during the heating season will be reduced this winter, and the supply will not exceed demand, which will help the steel market to run smoothly. For the time being, the positive impact of environmentally-friendly production is greater than the negative impact. Wanhao is a manufacturer who is specialized in designing various kinds of furnace and making refractory product

1. Add ferronickel or top crops and back end crops to the bottom of the furnace, (the center must be flattened), sintering can be started when the furnace is half full. 2. When sintering, the voltage should start from 100kw. After half an hour of operation, the voltage can be pulled to about 250kw. At the same time, it is necessary to constantly observe whether the forma is cut off due to excessive voltage and the furnace is bulged. If one of them occurs, The voltage should be lowered immediately, and the scrape in the furnace should be red before pouring in molten steel.(It is recommended that the furnace be sintered for no less than 3 hours) 3. The temperature of the molten steel should not be lower than 1600 ℃. After the molten steel is filled, the voltage should be pulled to 800kw. The voltage should be pulled up by 100kw to 150kw every 10 minutes till the temperature reaches 1720 ℃. The holding time should be no less than two hours. (During the heat preservation

1.Before installing the upper steel ladle, first check the use of the water block brick. When the pit or crack occurs, use the repair refractory material to repair it, and then proceed to the next step. 2. Take the water pipe test, check the gap between the nozzle brick and the brick and the positioning of the nozzle brick. It is forbidden to manually remove the head of the water inlet and install it. 3. After checking the appropriate, remove the nozzle brick and apply refractory mud evenly on the outer wall of the upper nozzle brick. The thickness of the refractory mud is controlled at about 10mm (according to the actual clearance). When the gap between the nozzle and the brick is large, the asbestos cloth can be used. The head of the nozzle is evenly wound separately. 4. When installing the water inlet, the nozzle brick should be smoothly fed into the brick. During operation, avoid the gap in the lower part of the nozzle brick. 5. The water inlet must be re