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发明公开
CN101650126A 一种链篦机、制备球团矿的装置和生球团的预热方法 有权

一种链篦机、制备球团矿的装置和生球团的预热方法
摘要：
本发明提供一种预热生球团的链篦机，从供料端一侧依次分为第一干燥段、第二干燥段、第一预热段、第二预热段；所述第一预热段包括与冷却机第二冷却段连接的第一送风管道；所述第一预热段连接有第一加热装置，所述加热装置用于加热由第一送风管道送入到第一预热段的烟气；所述第二预热段连接有第二加热装置，所述第二加热装置用于加热由回转窑送入到第二预热段的烟气。当生球团在第二预热段需要的热量不足，从而强度降低时，利用本发明的装置，同时通过提升第一预热段和第二预热段的烟气温度，为球团在第一预热段和第二预热段补充热量，从而使得入回转窑的球团矿满足回转窑的强度要求，避免出现粉矿。本发明还涉及制备球团矿的装置和生球团的预热方法。
摘要（英）：

The invention provides a grate for preheating green pellets. A first drying section, a second drying section, a first preheating section and a second preheating section are sequentially arranged on one side of a feeding end, wherein the first preheating section comprises a first blast pipeline which is connected with a second cooling section of a cooler, the first preheating section is connected with a first heating device which is used for heating flue gas which is delivered to the first preheating section from the first blast pipeline, and the second preheating section is connected with a second heating device which is used for heating flue gas which is delivered to the second preheating section from a rotary kiln. When the needed heat of the green pellets in the second preheating section is insufficient, the intensity is reduced, and the grate for preheating the green pellets is used for raising the flue gas temperatures of the first preheating section and the second preheating section simultaneously to supply heat for the pellets in the first preheating section and the second preheating section, thereby the pellets which enter the rotary kiln satisfy the intensity requirementsof the rotary kiln and avoid fine ore. The invention also relates to a pellet preparation device and a green pellet preheating method.

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