Seal rotary kiln |
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IPC classes for russian patent Seal rotary kiln (RU 2047827):
 Seal rotary kiln / 2023968
The invention relates to the construction materials industry, in particular to a device for sealing a gap between the rotating and stationary parts of rotary kilns, drying drums, etc
 Seal rotary kiln / 2018078
The invention relates to seals for rotary kilns and can be used in industry manufacture of building materials, ferrous and nonferrous metallurgy, cement production, limestone, lime, and other materials
 Seal rotary kiln / 2008595
The invention relates to the construction materials industry, in particular to a device for sealing a gap between the rotating and stationary parts of rotary kilns, drying drums
 Sealing device for rotating furnace / 2283996
Device comprises flexible casing whose one edge is secured to the unmovable chamber and the other edge is connected with the sealing ring. The edge of the sealing ring that faces the drum is made of two members that embrace the other contact ring from two sides. The contact ring is secured to the rotating drum. The device is provided with rollers mounted for permitting free rotation on the axles passing through the sealing ring.
 Screw for transportation of solid material with sealing structure and method for producing and utilization of reduced metal / 2299389
Drive shaft of solid substance feeding screw is extending within through openings provided within both side walls of heating furnace, and is held on liftable supporting devices positioned at both sides of furnace. Sealing structure has sealing blocks positioned outside the furnace on outer edges of through openings, said sealing blocks circumferentially surrounding said through openings, and movable shields equipped with openings for sliding of drive shaft for screw. Movable shields are brought into contact with sealing blocks through sealing members so as to be moved in vertical planes.
 Unit of sealing furnace worm shaft with granular materials / 2456521
Unit of sealing furnace worm shaft with granular materials contains screw 1, sealing bushing 2, whereby in the sealing area the shaft is equipped with sleeve 4 made of a high strength material and it has spiral grooves 6 with a polished surface and slopes 7 with angles of over 10 degrees on outer surface 5 in order to avoid self-blocking in the grooves of the granular material. The said sealing bushing 2 has grooves 10 with polished surface on internal surface 9 that are made capable of rotating in the direction opposite to the one of the shaft and slopes 11 with angles excluding a possibility of material self-blocking in the grooves whereby the shaft rotating direction ensures squirting of granular material 8 back into furnace 12.
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(57) Abstract: Usage: in the technique of sealing drums in the building materials industry and other industries. The inventive seal rotary kiln contains a coaxially rotating and stationary cylindrical shells with rings, which are telescopic split collars with leashes, pressed against the rings and one to another spring-loaded cables. 2 C. p. F.-ly, 1 Il. The invention relates to techniques for sealing working under vacuum drum and rotary kilns and can be used in the building materials industry and other industries. Known seal rotary kiln [1]The closest in technical essence and the achieved technical effect of the invention is to seal a rotary kiln containing a coaxially located and fixed respectively on the casing of a rotary kiln and a stationary chamber cylindrical rotating and stationary shell with rings at their ends and located in the shells rotary kiln and a stationary camera and made with overlapping split shell with the clamping astroplanner rings. The disadvantages of the known seals are the complexity of the design due to the presence of seals, low reliability due to poor clamping shells for covering her rings, and therefore poor performance of the seal. The technical result of the invention is to simplify the construction, increase the reliability and efficiency of the seal. This technical result is achieved by the fact that in the known seal rotary kiln containing a coaxially located respectively on the casing of a rotary kiln and a stationary chamber cylindrical rotating and stationary shell with rings at their ends and located in the shells rotary kiln and a stationary camera and made with overlapping split shell with clamping devices in the form of a spring-loaded cables, split shell made of composite of two telescopic shells with leashes, covering the ring and the shell of a rotary kiln and a stationary camera, and the spring-loaded cables are located on each of the telescopic shells. The seal can be equipped with a closed flexible element in the form of a rope or cable, located between the telescopic shells, priciple is its unwinding from the forces of friction of the inner shell. The drawing shows a seal rotary kiln, General view. The rotary kiln 1 on the end part has a cylindrical shell with ring 2 at the end. On coaxial with her fixed camera 4 at the end, which is coaxial to the rotary kiln shell. The ring 4 is wearing a split along the ring 5 with overlapping edges (overlap) and the leads 6 and is pressed thereto a spring-loaded cable 7. On the ring 2 and the ring 5 is wearing a similar split ring 8 with overlapping edges, which has a similar leashes 9 and pressed the spring-loaded cables 10. Between the shells 5, 8 can be installed in a closed flexible element in the form of a cable or rope 11 which may have a lubricant and is attached to one of the shells. Shell 5, 8 are telescopically one within the other. The unloading of the material from the furnace 1 through the pipe 12 recuperating refrigerator. The diameter of the ring 2 is chosen larger than the diameter of the ring 4 to match the diameter of the cable 11. The dimensions of the leads 6, 9 are taken at a height less than the height of the rings 4, 2. Efforts springs in the cables 7, 10 can be calculated from the condition ensuring pressing shells 5, 8 to the rings 2, 4 and to each other. The overlap of the shell 8 made on its unwinding from the forces of friction of the drum 5. Other ODA is blowing. The stationary ring 5 is compressed by the wire 7 around the ring 4, and around it rotates with the kiln 1 shell 8, crimped on ring 2 seal on the cable 11. When misalignment of the furnace 1 and the camera 3 shell 8 plays on the ring 2 and the cable 11, and the axial movements of the furnace 1 shell 8 slides over the cable 11. The use of seals can simplify the design, which leads to reduce the cost of manufacture. Improving the reliability of the seal due to improved mutual fit reduces the cost of repairs and reduces the leak, which saves fuel. 1. SEAL ROTARY KILN containing a coaxially located and fixed respectively on the casing of a rotary kiln and a stationary chamber cylindrical rotating and stationary shell with rings at their ends and located in the shells rotary kiln and a stationary camera and made with overlapping split shell with clamping devices in the form of a spring-loaded cables, characterized in that split shell made of composite of two telescopic shells with leashes, covering the ring and the shell of a rotary kiln and a stationary camera, and the spring-loaded cables are located on each of the telescopic shells. 3. The seal on PP.1 and 2, characterized in that the magnitude of overlap of the outer telescopic shell corresponds to its unwinding from the forces of friction of the inner shell.
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