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.

Provided is a sealing structure for a horizontal rotary pyrolysis kiln. A movable heat-insulation sealing ring is disposed such that a heat-insulation cavity is formed between the movable heat-insulation sealing ring and a flexible sealing mechanism. The heat-insulation cavity can effectively block the heat dissipated from a kiln tail cover and a kiln tail, thereby effectively reducing the ambient temperature of the flexible sealing mechanism in the heat-insulation cavity. In this way, the service life of the flexible sealing mechanism is prolonged, and the effectiveness of sealing is thus ensured.

Provided is a sealing structure for a horizontal rotary pyrolysis kiln. A movable heat-insulation sealing ring is disposed such that a heat-insulation cavity is formed between the movable heat-insulation sealing ring and a flexible sealing mechanism. The heat-insulation cavity can effectively block the heat dissipated from a kiln tail cover and a kiln tail, thereby effectively reducing the ambient temperature of the flexible sealing mechanism in the heat-insulation cavity. In this way, the service life of the flexible sealing mechanism is prolonged, and the effectiveness of sealing is thus ensured.

This application discloses a cathode material drying device and a cathode material drying production line. The cathode material drying device includes: a rotary kiln, where a kiln head and a kiln tail of the rotary kiln each are provided with a sealing structure and the rotary kiln can rotate relative to the sealing structure; and an exhaust system comprising an air inlet pipe, an air outlet pipe, and a first fan, where the air inlet pipe communicates with the kiln tail of the rotary kiln through the sealing structure; the air outlet pipe communicates with the kiln head of the rotary kiln through the sealing structure; and the first fan is arranged on the air inlet pipe and/or the air outlet pipe, so as to make an air flow direction in the rotary kiln opposite to a delivery direction of a cathode material.

This application discloses a cathode material drying device and a cathode material drying production line. The cathode material drying device includes: a rotary kiln, where a kiln head and a kiln tail of the rotary kiln each are provided with a sealing structure and the rotary kiln can rotate relative to the sealing structure; and an exhaust system comprising an air inlet pipe, an air outlet pipe, and a first fan, where the air inlet pipe communicates with the kiln tail of the rotary kiln through the sealing structure; the air outlet pipe communicates with the kiln head of the rotary kiln through the sealing structure; and the first fan is arranged on the air inlet pipe and/or the air outlet pipe, so as to make an air flow direction in the rotary kiln opposite to a delivery direction of a cathode material.

A radial seal assembly is disclosed for a regenerative heat exchanger. The radial seal assembly can include a mount having a first upstanding region and a first arcuate region. Here, the first upstanding region is configured to attach to a diaphragm of the heat exchanger. The radial seal assembly further includes a flexible radial contact or non-contact seal, wherein the seal further includes a second arcuate region. Here, the first arcuate region of the mount is configured to receive the second arcuate region of the flexible seal and securing the flexible seal therein.

A radial seal assembly is disclosed for a regenerative heat exchanger. The radial seal assembly can include a mount having a first upstanding region and a first arcuate region. Here, the first upstanding region is configured to attach to a diaphragm of the heat exchanger. The radial seal assembly further includes a flexible radial contact or non-contact seal, wherein the seal further includes a second arcuate region. Here, the first arcuate region of the mount is configured to receive the second arcuate region of the flexible seal and securing the flexible seal therein.

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.