Device for treating particle-shaped material, comprises a container, which has a process chamber formed as an annular space at a lower area, which surrounds a container central channel

摘要

The device for treating particle-shaped material, comprises a container (12), which has a process chamber (33) formed as an annular space (34) at a lower area, which surrounds a container central channel, where the top-opening process chamber is conveyed with the top-opening container central channel in a first operating condition in a process air-guiding manner, and a ventilator arranged at the lower end of the container central channel, which guides the process air into the process chamber over the container central channel into the first operating condition in circulation. The device for treating particle-shaped material, comprises a container (12), which has a process chamber (33) formed as an annular space (34) at a lower area, which surrounds a container central channel, where the top-opening process chamber is conveyed with the top-opening container central channel in a first operating condition in a process air-guiding manner, a ventilator arranged at the lower end of the container central channel, which guides the process air into the process chamber over the container central channel into the first operating condition in circulation, a process air supply, a filter arrangement (48) and a process air discharge for guiding the process air by the device in a second operating condition. The ventilator is formed as a double-sided intake ventilator and fresh air is guided by the process air guidance from the lower suction cross section of the ventilators. A central tube of the container central channel is surrounded by the upper intake opening of the ventilators, which comprise an upper cover, which surrounds the upper intake opening and is arranged at its bottom side of the backward curved shovels. The lower ends of the shovel of the contour are adapted to a bottom wall of the process chamber curved towards interior. The ventilator comprises a base sheet at the lower end of the shovels around its lower suction cross section, whose curvature is adapted to the bottom wall of the process chamber curved towards the interior. A height relocatable shut-off device is arranged at the lower end of the container central channel that locks into the first operating condition of the lower suction cross section of the ventilators and terminates into the second operating condition of the upper intake opening of the upper cover. The shut-off device is continuously height-adjustable between the two closed positions. A spray nozzle is circumferentially arranged into the process chamber towards the interior of spraying, and is arranged on a height in which the process air is separated itself from the circulated particle into the second operating condition, and are formed as an extensive slot die, which is radically sprayed towards the interior into the process chamber. The filter arrangement is arranged over the top opening ends of the process chamber.