摘要:
In a method of sintering cement clinker, raw material for cement is granulated in a spouted type fluidized bed granulating furnace (2) and the granules are sintered in a fluidized bed sintering furnace (3). The granules to be injected into said sintering furnace (3) are controlled to have a predetermined granule size range so that the operation of the sintering apparatus is stabilized and high-quality cement clinker is obtained. The granules discharged from the granulating furnace (2) are classified by blowing classifying gas into the granulating furnace (2) at a predetermined flow velocity, small size granules are returned to the granulating furnace (2), and granules having sizes larger than a predetermined size are injected into the sintering furnace (3) to be sintered.
摘要:
An apparatus for manufacturing cement clinker is disclosed in which raw material powder of cement pre-heated and partially pre-calcined by a pre-heating unit such as a suspension pre-heater (or a provided pre-calciner ) is charged into a granulating furnace as to be granulated, thus-obtained granulated material is charged into a sintering furnace as to be sintered, and the sintered material is cooled and recovered by a cooling unit, the apparatus having a granulating furnace so that the granulating performance of the granulating furnace is improved. A fuel supply unit for forming a local hot region is disposed immediately above a porous perforated distributor disposed in the throat portion between the granulating furnace and the sintering furnace so that the granulating furnace is formed into a jet fluidized bed structure, the lower portion of the granulating furnace has an inverse frustum of circular cone (a cone portion) so formed as to cause the granulated material to form a downward moving bed, and raw material powder of cement is blown through the side wall of the cone portion, and it is sufficiently dispersed in the moving bed before it reaches the local hot region.
摘要:
An apparatus for manufacturing cement clinker is disclosed in which raw material powder of cement pre-heated and partially pre-calcined by a pre-heating unit such as a suspension pre-heater (or a provided pre-calciner ) is charged into a granulating furnace as to be granulated, thus-obtained granulated material is charged into a sintering furnace as to be sintered, and the sintered material is cooled and recovered by a cooling unit, the apparatus having a granulating furnace so that the granulating performance of the granulating furnace is improved. A fuel supply unit for forming a local hot region is disposed immediately above a porous perforated distributor disposed in the throat portion between the granulating furnace and the sintering furnace so that the granulating furnace is formed into a jet fluidized bed structure, the lower portion of the granulating furnace has an inverse frustum of circular cone (a cone portion) so formed as to cause the granulated material to form a downward moving bed, and raw material powder of cement is blown through the side wall of the cone portion, and it is sufficiently dispersed in the moving bed before it reaches the local hot region.