采用镁质新材料解决高硫焦对罐式炉罐体腐蚀的新技术

Using magnesia new material to solve the high sulfur coke tank corrosion of tank furnace technologies

由于铝用阳极生产企业近年来越来越多的将高硫焦作为生产铝用阳极的掺用原料,罐式煅烧炉使用高硫焦造成了料罐的严重蚀损,炉体使用寿命的大幅度降低。本文从针对提高料罐抗渣蚀能力出发,提出了采用镁质材料代替硅砖砌筑罐式煅烧炉料罐、火道的新技术。可以有效解决煅烧高硫焦(一价氧化物(K_2O,Na_2O)、Fe_2O_3、二价氧化物,如CaO,MgO和高钒V_2O_5、V_2O_3)导致罐式煅烧炉料罐的严重蚀损,避免因蚀损造成罐式煅烧炉使用寿命的大幅度降低的现象。有效的解决了在掺用低质高硫石油焦原料时长期困扰炭素行业生产的这一突出难题。

In recent years, more and more aluminium used anode smelters use high-sulphur petroleum as raw materials. It caused a serious erosion of the tank on the shaft calciner, and the shaft calciner life is greatly reduced. In order to improve the tank for slag resistance, our company put forward to replace silica brick with magnesia materials for shaft calciner and the flue. This new technology can effectively reduce erosion of the tank which is caused by calcined high-sulphur coke [ Monovalent oxide （such as K2O, Na2O）, Fe2O3, divalent oxides , （such as CaO, MgO） and high vanadium （V2O5, V2O3）] , and can avoid the phenomenon that the tank life is reduced by calcined high-sulphur coke corrosion. It can effectively solve this long-term problem in the carbon industry, which use poor high-sulphur petroleum as raw materials.