A rotary kiln sealing system and rotary kiln equipment are provided. The rotary kiln sealing system includes a first housing and a second housing. The second housing is annularly disposed outside the first housing in space, and a first gap is left between the first housing and the second housing. An elastic compensation joint is disposed outside the second housing.

A rotary kiln sealing system and rotary kiln equipment are provided. The rotary kiln sealing system includes a first housing and a second housing. The second housing is annularly disposed outside the first housing in space, and a first gap is left between the first housing and the second housing. An elastic compensation joint is disposed outside the second housing.

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.

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 seal assembly for a rotary kiln having a hood and a rotary drum with an opening formed between the drum and the hood, and an end. The rotary seal assembly includes a flexible framework arrangement that attaches to the end. The rotary seal assembly includes a riding surface that engages the drum as the drum rotates. The riding surface includes a series of seal segments with each seal segment having a mounting eye positioned to eliminate a fulcrum point at the mounting eye. The rotary seal assembly includes a seal that is supported by the riding surface and is in essentially 360-degree contact with the drum when it is rotating and seals the opening between the drum when it is rotating in the hood to prevent fluid flow into and out of the end. A rotary seal assembly for a rotary kiln having a hood and a rotary drum with an opening formed between the drum and the hood, and an end, includes redundant tension springs which form a complete 360-degree circle around the drum. A method for sealing an opening formed between a drum and a hood.

A rotary seal assembly for a rotary kiln having a hood and a rotary drum with an opening formed between the drum and the hood, and an end. The rotary seal assembly includes a flexible framework arrangement that attaches to the end. The rotary seal assembly includes a riding surface that engages the drum as the drum rotates. The riding surface includes a series of seal segments with each seal segment having a mounting eye positioned to eliminate a fulcrum point at the mounting eye. The rotary seal assembly includes a seal that is supported by the riding surface and is in essentially 360-degree contact with the drum when it is rotating and seals the opening between the drum when it is rotating in the hood to prevent fluid flow into and out of the end. A rotary seal assembly for a rotary kiln having a hood and a rotary drum with an opening formed between the drum and the hood, and an end, includes redundant tension springs which form a complete 360-degree circle around the drum. A method for sealing an opening formed between a drum and a hood.

The present invention relates to self-compensating thermal expansion sealing systems. In this context, the present invention provides a self-compensating thermal expansion sealing system for a cylindrical rotating reactor (2) comprising (a) a first self-compensating portion (8) positioned at a first end of the cylindrical rotating reactor (2), the first self-compensating portion (8) comprising (a.1) a guide ring (80) fixed to the support structure of the cylindrical rotating reactor (2), (a.2) an axially sliding housing ring (84) adjacent to the guide ring (80), the axially sliding housing ring (84) being sliding with respect to the guide ring (80) in the axial direction, and (a.3) a first ring-shaped bearing race (22) fixed to the housing of the cylindrical rotating reactor (2) and resting on a first support roller (32), the first bearing race (22) sliding in the radial direction with respect to the axially sliding housing ring (84) and integral with it in the axial direction of the cylindrical rotating reactor (2); and (b) a second self-compensating portion (9) positioned at a second end of the cylindrical rotating reactor (2), opposite the first, the second self-compensating portion (9) comprising (b.1) a fixed housing ring (94) to the support structure of the cylindrical rotating reactor (2) and (b.2) a second bearing race (23) in the form of a ring fixed to the cylindrical rotating reactor housing (2) and resting on a second support roller (33), the second bearing race (23) being rotatably sliding with respect to the fixed housing ring (94) and sliding in axial direction with respect thereto.

The present invention relates to self-compensating thermal expansion sealing systems. In this context, the present invention provides a self-compensating thermal expansion sealing system for a cylindrical rotating reactor (2) comprising (a) a first self-compensating portion (8) positioned at a first end of the cylindrical rotating reactor (2), the first self-compensating portion (8) comprising (a.1) a guide ring (80) fixed to the support structure of the cylindrical rotating reactor (2), (a.2) an axially sliding housing ring (84) adjacent to the guide ring (80), the axially sliding housing ring (84) being sliding with respect to the guide ring (80) in the axial direction, and (a.3) a first ring-shaped bearing race (22) fixed to the housing of the cylindrical rotating reactor (2) and resting on a first support roller (32), the first bearing race (22) sliding in the radial direction with respect to the axially sliding housing ring (84) and integral with it in the axial direction of the cylindrical rotating reactor (2); and (b) a second self-compensating portion (9) positioned at a second end of the cylindrical rotating reactor (2), opposite the first, the second self-compensating portion (9) comprising (b.1) a fixed housing ring (94) to the support structure of the cylindrical rotating reactor (2) and (b.2) a second bearing race (23) in the form of a ring fixed to the cylindrical rotating reactor housing (2) and resting on a second support roller (33), the second bearing race (23) being rotatably sliding with respect to the fixed housing ring (94) and sliding in axial direction with respect thereto.

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.