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Light calcined dolomite and method for reducing calcined powder rate of high-iron-aluminum dolomite
The invention belongs to the technical field of metallurgy, and particularly relates to light-burned dolomite and a method for reducing the calcined powder rate of high-iron-aluminum dolomite. The method for reducing the calcining powder rate of the high-iron aluminum dolomite comprises the following steps: (1) carrying out low-temperature pretreatment on the high-iron aluminum dolomite; (2) calcining the high-iron aluminum dolomite subjected to low-temperature pretreatment; and (3) cooling to obtain the light-burned dolomite. According to the method for reducing the calcining powder rate of the high-iron-aluminum dolomite, the high-iron-aluminum dolomite is subjected to low-temperature preheating treatment, the calcining temperature and the rotating speed of the rotary kiln are increased in the calcining process, and a material layer is thinned, so that an iron-containing phase and an aluminum-containing phase can be promoted to participate in a reaction; and therefore, the strength of light-burned dolomite is improved, the powder rate is reduced, the kiln condition is improved, and the ring forming period of the rotary kiln is prolonged.
本发明属于冶金技术领域，具体涉及一种轻烧白云石及降低高铁铝白云石煅烧粉率的方法。本发明的降低高铁铝白云石煅烧粉率的方法，包括：(1)对高铁铝白云石进行低温预处理；(2)将低温预处理的高铁铝白云石进行煅烧；(3)冷却，得到轻烧白云石。本发明的降低高铁铝白云石煅烧粉率的方法，通过对高铁铝白云石进行低温预热处理以及在煅烧过程中提高煅烧温度和回转窑转速、减薄料层，可以促使含铁、铝相参与反应，从而提高轻烧白云石强度、减少粉率、改善窑况并延长回转窑的结圈周期。
Light calcined dolomite and method for reducing calcined powder rate of high-iron-aluminum dolomite
The invention belongs to the technical field of metallurgy, and particularly relates to light-burned dolomite and a method for reducing the calcined powder rate of high-iron-aluminum dolomite. The method for reducing the calcining powder rate of the high-iron aluminum dolomite comprises the following steps: (1) carrying out low-temperature pretreatment on the high-iron aluminum dolomite; (2) calcining the high-iron aluminum dolomite subjected to low-temperature pretreatment; and (3) cooling to obtain the light-burned dolomite. According to the method for reducing the calcining powder rate of the high-iron-aluminum dolomite, the high-iron-aluminum dolomite is subjected to low-temperature preheating treatment, the calcining temperature and the rotating speed of the rotary kiln are increased in the calcining process, and a material layer is thinned, so that an iron-containing phase and an aluminum-containing phase can be promoted to participate in a reaction; and therefore, the strength of light-burned dolomite is improved, the powder rate is reduced, the kiln condition is improved, and the ring forming period of the rotary kiln is prolonged.
本发明属于冶金技术领域，具体涉及一种轻烧白云石及降低高铁铝白云石煅烧粉率的方法。本发明的降低高铁铝白云石煅烧粉率的方法，包括：(1)对高铁铝白云石进行低温预处理；(2)将低温预处理的高铁铝白云石进行煅烧；(3)冷却，得到轻烧白云石。本发明的降低高铁铝白云石煅烧粉率的方法，通过对高铁铝白云石进行低温预热处理以及在煅烧过程中提高煅烧温度和回转窑转速、减薄料层，可以促使含铁、铝相参与反应，从而提高轻烧白云石强度、减少粉率、改善窑况并延长回转窑的结圈周期。
Light calcined dolomite and method for reducing calcined powder rate of high-iron-aluminum dolomite
轻烧白云石及降低高铁铝白云石煅烧粉率的方法
HE SHUZHEN (author) / SHI YONGLIN (author) / LI HAOKUN (author)
2021-08-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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