回转窑中的煅烧料与加热火焰气流呈逆流运动,因而使得许多小颗粒料随气流翻越窑头法兰圈,沉积于窑头储灰室,需及时排放。过去曾采用机械刮灰机将火红的料灰推入生料提升机,然后送入24米高的回转窑投料仓。由于料灰火红炽烫,经常将提升机料斗皮带烫焦烧断,造成回转窑停产抢修,严重妨碍了正常生产。 The calcined material in the rotary kiln is in countercurrent movement with the heated flame stream, causing many small particles to cross the kiln head flange ring with the air flow and deposit in the kiln head ash storage chamber for timely discharge. In the past, a mechanical dust scraper was used to push the fiery gray material into the raw material hoist, which was then fed to a 24-meter rotary kiln hopper. Due to the fiery red hot iron, often lifting the hopper belt scorch, causing the rotary kiln shutdown for repair, seriously hampered the normal production.