Provided are dynamic sealing structure and rotary kiln apparatus. Dynamic sealing structure includes kiln tail, discharging cover, sealing mechanism, guiding mechanism and a balancing device. Discharging cover includes discharging cover cylinder and discharging cover end face connected to same, discharging cover cylinder is arranged on outer side of circumferential wall of kiln tail in a sleeving manner, and discharging cover end face and end face of the kiln tail are arranged at intervals. Sealing mechanism is arranged between discharging cover cylinder and kiln tail and is connected to inner wall of discharging cover cylinder. Guiding mechanism is arranged between inner wall of discharging cover cylinder and outer side of kiln tail, and is located on one side or two sides of the sealing mechanism in axial direction of rotary kiln, rotating gap is provided between guiding mechanism and kiln tail, and balancing device is connected to outer side of the discharging cover cylinder.

A rotary tube kiln, with a rotatably mounted rotary tube, which has a motorized drive, a mounting, a material inlet and a material outlet, wherein the interior space of the rotary tube has a process space, the inside atmosphere of which is separate from the outside atmosphere. The process space is sealed off from a pressure space by means of a first seal and the pressure space is sealed off from the outside atmosphere by means of a second seal and, by means of a pressing device, a first pressing force can be applied to the first seal and a second pressing force can be applied to the second seal, the first pressing force can be set independently of the second pressing force and, during operation, the internal pressure of the pressure space is higher than the internal pressure of the process space.

A rotary tube kiln, with a rotatably mounted rotary tube, which has a motorized drive, a mounting, a material inlet and a material outlet, wherein the interior space of the rotary tube has a process space, the inside atmosphere of which is separate from the outside atmosphere. The process space is sealed off from a pressure space by means of a first seal and the pressure space is sealed off from the outside atmosphere by means of a second seal and, by means of a pressing device, a first pressing force can be applied to the first seal and a second pressing force can be applied to the second seal, the first pressing force can be set independently of the second pressing force and, during operation, the internal pressure of the pressure space is higher than the internal pressure of the process space.

A device for plasma treatment of solid waste includes: a casing defining a treatment volume; a plasma torch including a first electrode and a second electrode that face into the treatment volume; an inlet port for intake of solid waste to be treated; an outlet port for disposal of inert solid products of reaction; a supply port for intake of a gas for supplying the aforesaid plasma torch; and a discharge port for discharge of gaseous products of reaction. The first electrode and the second electrode are arranged opposed to one another, and the casing is mounted rotatable about an axis of rotation. A treatment system is also provided incorporating the treatment device.

The invention relates to a sealing arrangement of a rotary kiln for sealing on a rotary tube, comprising a first and a second seal half (10, 20) and a first and a second traction system (3, 4), wherein the two seal halves (10, 20) exert a tensile force (F) for sealing on an outer periphery of the rotary tube, by means of the two traction systems (3, 4).