Seal rotary kiln |
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IPC classes for russian patent Seal rotary kiln (RU 2023968):
     
 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 building materials industry, in particular in devices for sealing a gap between the rotating and stationary parts of rotary kilns, drying drums, etc. equipment. The inventive seal includes a sealing ring made of separate elements, Shostakovich in the lock and pressed against the fixed camera and the rotating part by means of rollers covered skip through them the rope with weights, and a support roller, which is provided with a sealing ring. The elements of the sealing ring is made with l-shaped, horizontal shelf when it is equipped with racks that are attached to the axis of the support rollers, and the rollers pass through the slots in the shelf. Stand l-shaped elements are provided with threaded holes placed symmetrically, and the ends of the axes of the support rollers have holes that are offset relative to each other along the axis of the support roller, the distance between the holes on the axis is equal to the distance between the screw holes on the rack. Between the ends of the axles and struts installed gaskets. 2 C.p. f-crystals, 7 Il. The invention relates to the construction belonging furnaces, drying drums, etc. equipment. Known seal for a rotary kiln containing ring Elevator, attached to the side wall of the loading end of the furnace and covering the front of the stationary camera, a flange mounted on the end wall of the chamber, and a sealing ring composed of separate annular sectors and established between the Elevator and the flange is pressed against the flange and the United U-shaped rods with Elevator, on the flange of the stationary camera hinged sliding of the bar, pressed by springs to the ring sectors of the sealing ring, and the beam is equipped with brackets into the slots which pairs are the ends of the U-shaped rod, angled to each other in the direction of the sectors to the end of the Elevator [1]. The lack of seal design is the complexity. It is also known a device for sealing a gap between the rotary kiln and a stationary chamber containing a sealing ring made of sectors mounted on them rollers, and mechanism for pressing the sealing ring to the rotary kiln and a stationary camera, the preload mechanism made in the form of two shoulders of levers hinged edge, equal to 0.22-0,27 length sector [2]. The disadvantage of this design are the complexity and unreliability. The closest in technical essence and the achieved result to the invention is a seal rotary kiln containing a sealing ring made of separate elements, coupled to the castle and pressed against the fixed camera and the rotating part by means of rollers covered skip through them the rope with weights, and a support roller, which is provided with o-ring [3]. A disadvantage of the known seals are low drag and use it strictly for one direction of rotation of the rotating part. The aim of the invention is to increase efficiency by increasing aerodynamic drag. In Fig. 1 presents a General view of the seal of Fig.2 - section a-a in Fig. 1; Fig.3 is a view along arrow B in Fig.2; Fig.4 - the same, a variant of Fig.5 - section b-b In Fig.2; Fig.6 - this is the same variant of Fig.7 - support roller, top view. Seal rotary kiln contains a sealing ring made of individual elements 1, coupled to the castle and presses Kornich rollers 7. One end of the cable 5 is fixed on the plate 8, secured to the stationary camera 2, and the other covers the rollers 9 mounted on the plate 10 attached to a fixed camera 2, and is connected with loose cargo 6. The elements of the sealing ring is made with l-shaped with a vertical wall 11 and the horizontal shelf 12. The shelf 12 is made with the braces 13, which is fixed axis 14 of the support rollers 7, and the slots 15 for the passage of the rollers. On the walls 11 of the sealing elements is fixed axis 16, with a loose fit mounted rollers 4. The axis 14 of the support roller 7 is fixed by means of spacers 17. The support roller 7, passing through the groove 15 communicates with the body of rotary kiln 3. Axis 14 is fixed to the uprights 13 of the fastening elements 18. The rack 13 of l-shaped elements are made with symmetrical screw holes 19-24 for fasteners 18. Holes 19, 20 are perpendicular to the axis of rotation of the furnace. The ends of the axes of the support rollers can be made with holes that are offset relative to each other along the axis of the support roller, and the distance between the hole axis is equal to the distance between the screw holes on the rack. Seal rotary kiln works the following is a high rings and rollers 9 on the plate 10, under the action of the load 6 through the axis 16 tends to press the elements 1 to the furnace body 3. However, the support rollers 7 rest against the body of the kiln, resulting in between them and the shelf 12 element 1 remains a gap. At the same time cargo weight 6 seeks to overturn the elements 1 to the left relative to the support roller 7 (Fig.2) and thereby presses the wall 11 items 1 to the stationary camera 2. Thereby seal the gap between the stationary camera 2 and the furnace body 3. The support roller 7 passes through the shelf 12 through the slot 15. Changing the thickness of the package gasket 17 between the posts 13 and the axis 14, it is possible to adjust the gap between the body of the drum and the shelf 12 of the element 1, thereby altering the aerodynamic resistance of the seal and, therefore, its effectiveness. When reducing this gap resistance will increase and will increase the effectiveness of the seal. During the rotation of the furnace body 3 in a clockwise direction (Fig.3) support rollers 7 are mounted so that the angle is positive. While the fastening elements 18 are passed through the axis 14 and screwed into the threaded holes 20, 21 and 22, 23 of the uprights 13 (Fig.5). During the rotation of the furnace housing counterclockwise (Fig.4) support rollers 7 the lips of the screw holes 19, 20 and 23, 24 racks 13 (Fig.6). In any case, thanks to the corner with the rotation of the furnace housing there are efforts seeking to move the support roller 7 to the left (Fig.3 and 4). This ensures a tight fit wall 11 elements 1 and all o-rings fixed to the camera, increasing the efficiency of its work. It is evident from Fig.7 shows that the distance G and D from the vertical axis of the support roller to the axis of the holes (not shown) in the axis 14 through which pass the fastening elements 18, are not equal. For this reason, when the rotation axis 14 around its axis of rotation, the rollers change the angle of spread (Fig.4). This improves uniformity of compaction, i.e., it can be used in either direction of rotation of the furnace. 1. SEAL ROTARY KILN containing a sealing ring made of separate elements, coupled to the castle and pressed against the fixed camera and the rotary kiln by means of rollers skip through them the rope with weights and rollers connected to the elements of the sealing ring, wherein the sealing elements o-rings are made with l-shaped, horizontal shelf each element performed from a stand, on which is fixed axis rollers, made with symmetrical screw holes, and the ends of the axes of the support rollers have holes that are offset relative to each other along the axis of the support roller, the distance between the hole axis is equal to the distance between the screw holes on the rack. 3. Seal under item 1, characterized in that it is provided with spaced at the ends of the axes of the rollers and in contact with the rack spacers.
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