Seal rotary kiln |
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IPC classes for russian patent Seal rotary kiln (RU 2018078):
  
 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: Use in cement, metallurgical and other industries. The inventive device includes a sealing ring made of separate flexible elements included in each other. Elements articulated on axes fixed to the visor, welded to the wall of the refrigerator and beads 6. Beads 6, suprakash each other cavities 7 and projections 8, form a contact ring around the shell. On each bead 6 on the side of the ledge 8 is fixed a thin visor 10, the shape beads 6 in cross-section, and its length protruding part 11 is equal to the length of the projection 8 beads 6. Axles installed a Belleville spring washer, castellated nut, and cotter pins. In cast bead 6 as of inserts placed wear-resistant elements and solid lubricant. Through a longitudinal groove beads 6 wound cables with cargo, tightly clamping beads 6 to the ring. 4 Il. 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. The closest technicalia, consisting of separate flexible elements, pivotally connected to the canopy of the refrigerator and beads made wrought aluminum alloy with a longitudinal groove for the factory cable and the excess metal layer on the working surface, over which is placed inside in the form of inserts of wear resistant elements with solid lubricant between them. In addition, the axis of the hinges of each beads and visor fridge is stationary in them and connected with thickening of the flexible element by means of Belleville springs. A disadvantage of the known device is that when the beating of the furnace shell beads apart and in place of the protrusion-depression between the vertical surfaces of the beads, a gap through which the sucked air in the internal volume of the furnace, which reduces the degree of compaction and leads to increased fuel consumption. The aim of the invention is the reduction of fuel consumption by reducing the intake of atmospheric air into the inner volume of the furnace. This goal is achieved by the fact that the seal rotary kiln containing a sealing ring consisting of separate flexible elements, pivotally connected to the canopy of the refrigerator and beads, each of the m placed inside mortgage wear-resistant elements with solid lubricant between them, and with a longitudinal groove for the factory cable, and each bead is made with thin visor in the form of a plate, the shape of the cross section of beads and secured to it by hanging beads, the length extending beyond the bead portion of the visor is equal to the length of the protrusion beads. The proposed seal differs from the prototype in that it every bead is made with thin visor in the form of a plate, the shape of the cross section of beads and secured to it by hanging beads, the length extending beyond the bead portion of the visor is equal to the length of the protrusion beads. Run a thin visor in the form of a plate, the shape of the cross section of beads attached to each bead from the side of the ledge, where the length extending beyond the bead portion of the visor is equal to the length of protrusion of the beads provides overlapping gaps formed by the beating of the shell of the furnace in place of the protrusion-depression between the vertical surfaces diverging while the beads, which prevents the suction of atmospheric air into the inner volume of the furnace through the gaps and leads to reduced fuel consumption. The operation of the seals showed that when mounting beads between them, the wasps of atmospheric air into the inner volume of the furnace can be effectively eliminated with the installation of the proposed seal, where the bead is further provided with a thin canopy. In Fig.1 shows a seal - longitudinal section; Fig.2 is a view along arrow a in Fig.1; Fig.3 - section b-B in Fig.1; Fig.4 is a view along arrow b of Fig.3. The seal consists of a ring 1 made of separate flexible elements 2 that are included in each other. Features 2 hinged on axes fixed to the visor 4, welded to the wall of the refrigerator 5 and beads 6. Beads 6, suprakash each other cavities 7 and projections 8, form a contact ring around the shell 9. On each bead 6 on the side of the ledge 8 is fixed visor 10, made in the form of plates of the same shape beads in cross-section, and its length protruding part 11 is equal to the length of the projection 8 beads 6. Axis 3 is set disc springs 12, castellated nut 13 and pins 14 (Ref. not shown). The nuts 13 are produced in such a way as to ensure the bead 6 and the flexible element 2 tight radial mobility. In cast bead 6 as of inserts placed wear-resistant elements 15 and solid lubricant 16. Through a longitudinal groove beads wound cables 17 and 18 with the load 19, tightly clamping beads 6 to the ring 9. During the rotation and radial runout of the shell 9 of the furnace Bursa thereby the intake air through the gap that is The proposed seal compared to the base object prototype protects the internal volume of the furnace from the ingress of atmospheric air through the gaps, which reduces fuel consumption per unit of production. SEAL ROTARY KILN containing a sealing ring consisting of separate flexible elements, pivotally connected to the canopy of the refrigerator and beads, each of which is made of cast aluminum alloy with excess metal layer on the working surface, over which is placed inside bookmarks wear-resistant elements with solid lubricant between them, and with a longitudinal groove for a plant cable, characterized in that, with the aim of reducing fuel consumption by reducing the intake of atmospheric air into the inner volume of the furnace, each bead is made with thin visor in the form of a plate, repeating the cross-sectional shape beads and secured to it by hanging beads, the length extending beyond the bead portion of the visor is equal to the length of the protrusion beads.
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