发明名称 |
METHOD AND SYSTEM FOR DRYING FUELS IN THE FORM OF DUST, PARTICULARLY TO BE FED TO A GASIFICATION PROCESS |
摘要 |
The procedure for drying dust residue in gasification of fuels e.g. coal and petroleum coke, comprises crushing the fuel in a grinder (2), supplying the fuel to a filter (3) or separator by means of a conveying- and a drying gas, and redirecting a part of the conveying/drying gas in the cycle after heating up into the grinder. A part of the conveying/drying gas flow is cooled and dehumidified in a spraying tower (6). A part of the dried gas of the environment and/or furnace is again supplied to the conveying/drying gas flow. The procedure for drying dust residue in gasification of fuels e.g. coal and petroleum coke, comprises crushing the fuel in a grinder (2), supplying the fuel to a filter (3) or separator by means of a conveying- and a drying gas, and redirecting a part of the conveying/drying gas in the cycle after heating up into the grinder. A part of the conveying/drying gas flow is cooled and dehumidified in a spraying tower (6). A part of the dried gas of the environment and/or furnace is again supplied to the conveying/drying gas flow. The conveying/drying gas flow behind the mixing of the dried gas flow from the spraying tower cooling is supplied to a heat exchanger (11). A partial flow of the condensate resulting in the spraying tower is leadable by means of a bypass (16) around the cycle heat exchanger for temperature control of the conveying/drying gas flow. The temperature of the gas flow over a further heat exchanger intended in the main circulation of the conveying/drying gas flow, is adjusted to the temperature of the gas flow reconducted to the spraying tower. A cleaning and/or a pressure rising device is intended to the gas flow for output to the environment/furnace. The temperature of the conveying/drying gas flow is raised before entrance into the grinder over a burner. An inert gas is supplied to the circulation. Over the spraying tower, 15% of the gas flow from the grinder is supplied to the drying process. An independent claim is included for a device for drying dust residue in gasification of fuels. |
申请公布号 |
EP2118602(B1) |
申请公布日期 |
2016.08.31 |
申请号 |
EP20070856746 |
申请日期 |
2007.12.14 |
申请人 |
THYSSENKRUPP INDUSTRIAL SOLUTIONS AG |
发明人 |
KOWOLL, JOHANNES;KUSKE, EBERHARD |
分类号 |
F26B1/00;F26B17/10;F26B21/04;F26B21/06 |
主分类号 |
F26B1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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