| 摘要 |
<p>A dry coal powder gasification furnace comprises a furnace body. The furnace body consists of a gasification furnace body for hot and dirty coal gas (1) and a hot and dirty gas reforming and cleaning furnace body (2). There is a gasification chamber (3) in the upper part of the gasification furnace body (1) and a settling chamber (4) in the lower part of the gasification furnace body (1). There are multiple coal powder nozzles (9) at the upper part of the gasification furnace body (1). One ends of the multiple coal powder nozzles (9) are connected to the gasification chamber and another ones are connected to a coal-spraying pipe (8). The coal-spraying pipe (8) is connected to a screw feeder (7). The screw feeder (7) is mounted below a loading lock hopper (6). Multiple gas nozzles (10) connected to the gasification chamber (3) are mounted at the upper part of the gasification furnace body (1) and below the coal powder nozzles (9). Multiple regulating gasification nozzles (11) connected to the gasification chambers (3) are mounted at the middle part of the gasification furnace body (1) and below the multiple gas nozzles (10). Multiple cool nozzles (12) connected to the settling chamber (4) are provided at the lower part of the gasification furnace body (1). Water-cooled walls (13) are provided in the settling chamber (4). A water-cooling grate (19) is mounted in the middle part of the reforming and cleaning furnace body (2). The fluidized bed gasification furnace with the nozzles is simple in structure and reliable in operation. The compositions of the produced coal gas can be easily controlled and the high-pressure coal gas produced can be directly supplied to users.</p> |
