| 摘要 |
The invention refers to the fluidized-bed drying machinery and may be used in food, pharmaceutical, biochemical and other branches of industry for drying of plant remains with an excessive content of water, especially, of lignin. Summary of the invention consists in that the fluidized-bed drier contains a device for material charging, a device for unloading of the finished product, a fluidized-chamber, containing devices for filling up with thermal agent, each of which consisting of a diffuser, an air heater and a fan, a device for thermal agent removal and a gas distributing grid, placed above the diffuser and provided with vertical thresholds. The drier is made in the form of two autonomous chambers, placed parallel to the fluidized bed, each being provided with helical rippers placed in the material unloading zone. The drier contains cyclones for drawing in of the product and a close system for thermal agent preparation. The device for thermal agent removal, made in the form of a cyclone, is provided with a fan and a cross-partition with a height of 300...500 mm. The gas distributing grid is provided with perforated nozzles.Claims: 2Fig.: 2 |
