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Apparatus for calcining raw material

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专利汇可以提供Apparatus for calcining raw material专利检索,专利查询,专利分析的服务。并且An apparatus for calcining raw material such as the raw material used for making Portland cement. The apparatus is used in conjunction with a preheater and a calciner, such as a rotary kiln, and a cooler. The calciner includes a vessel with means for supplying combustion gas to the bottom of the vessel, an outlet at the top of the vessel, for spent combustion gas and calcined material, a burner for producing a combustion zone intermediate the combustion air supply and the calcined material outlet. Raw material can be supplied to the vessel either from above the combustion zone and below the outlet or from below the combustion zone. The combustion air may be supplied from the cooler or a combination of the cooler and the exhaust gases from the clinkerer. The apparatus is primarily designed for using coal as a fuel.,下面是Apparatus for calcining raw material专利的具体信息内容。

1. Apparatus for calcining raw material comprising: a vessel having an inlet for raw material to be calcined, means for producing a combustion zone in said vessel, as inlet for combustion air and an outlet for spent combustion air and calcined material whereby the direction of combustion air flow is from said inlet for combustion air to said outlet for spent combustion air through said vessel; said inlet for raw material and combustion air being located upstream of said inlet for fuel and said outlet for spent combustion air in the direction of combustion air flow.
2. Apparatus for calcining raw material comprising: an upright vessel having an inlet for combustion air near one end, an outlet for spent combustion air near the other end, an inlet for material to be calcined intermediate the inlet for combustion air and the outlet for spent combustion air and an inlet for fuel intermediate the inlet for combustion air and the inlet for material to be calcined; means for supplying material to be calcined to said inlet for material to be calcined whereby the material to be calcined is directed into a combustion zone and is calcined therein; and means for supplying combustion air to said inlet for combustion air whereby the combustion air flows through said vessel to said outlet for spent combustion air and calcined raw material is discharged from said vessel with spent combustion air.
3. Apparatus for calcining raw material according to claim 1 further comprising a diffusion plate mounted in said vessel intermediate said inlet for combustion air and said inlet for raw material to be calcined.
4. Apparatus for calcining raw material according to claim 1 further comprising a gas-solids separator and conduit means flow connecting said outlet for spent combustion air to said gas-solids separator; said gas solids separator being adapted to separate calcined material from the spent combustion air discharged from said vessel.
5. Apparatus for calcining raw material according to claim 4 further comprising a diffusion plate mounted in said vessel intermediate said inlet for combustion air and said inlet for raw material to be calcined.
6. Apparatus for calcining raw material according to claim 4 wherein said vessel includes a first portion having a first diameter and a second portion having a diameter larger than said first portion and said inlet for fuel is in said first portion and said outlet for spent combustion air, is in said second portion.
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