Do you know the cause analysis and treatment plan of iron infiltration in the lining of a blast furnace?-News-Anyang Younengde Electric Co., Ltd

Do you know the cause analysis and treatment plan of iron infiltration in the lining of a blast furnace?

Update Time: 2021-10-13 Follow: 2693

矿热炉炉衬渗铁的原因分析及处理方案，小编教大家一些方法，首先带大家了解一下矿热炉渗铁的原因有哪些.

Do you know the cause analysis and treatment plan of iron infiltration in the lining of mineral heat furnace?

Analysis of the reasons for iron infiltration in mineral heat furnaces

① Whether the physical and chemical indicators of self fired carbon bricks can meet national standards;

; ② During masonry, the gaps did not meet the requirements for masonry, and some refractory bricks were reworked. Can the quality of the rest of the masonry meet the requirements;

③ When baking, adding a lot of wood and coke causes the temperature to rise too quickly, resulting in a rapid increase in the temperature of the entire furnace body;

④ Strongly insert the electrode during operation to increase the voltage; ⑤ When the current exceeds the rated value, the reactive power greatly exceeds the active power, and the power factor fluctuates around 0.3 with compensation; ⑥ Difficulty in inserting the electrode, stop adding dolomite in the early stage to increase coke, reduce coke in the later stage and add non coke materials;

⑦ It is extremely inappropriate to use high A1203 slag type. High melting point furnaces will shrink crucibles, make it difficult to insert electrodes, and discharge slag, which will worsen the furnace condition;

⑧ Impact of two large slag turning operations on the furnace lining.

Treatment measures for iron infiltration in mineral thermal furnaces

① Moderately reducing the Mn/Fe ratio in the furnace charge ratio and increasing the iron element in the furnace charge will be beneficial for digesting the carbonized cinnamon accumulated at the bottom of the furnace;

;

② Adopting carbon emission, the original consideration of 8 ^ 10% carbon emission in the batch can be reduced to 5%, and the batch can be restored to normal at any time according to the increase of iron emission.

; ③ Moderately increase the alkalinity in the batch of materials to reduce the difficulty of slag discharge;

④ Timely increase the voltage, sudden increase in voltage will further exacerbate the temperature rise at the furnace mouth; ⑤ In the presence of technical management personnel, occasional power-off electrode insertion can be used in the later stage of iron production to squeeze out the semi melted furnace material in the crucible area, while strengthening the slag discharge at the furnace mouth; ⑥ Adjust the quality of coke by using blue charcoal and coke in a certain ratio to increase specific resistance; ⑦ Control the current within the rated value; Strengthen the slag discharge at the furnace mouth;

⑧ In the case where the electrode does not rise significantly, moderately extend the tapping cycle to increase the furnace temperature.

The above are some treatment measures shared by the manufacturer of the mineral heat furnace. For more details, please follow the official website: http://www.ayynd.com/

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