Unit of sealing furnace worm shaft with granular materials |
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IPC classes for russian patent Unit of sealing furnace worm shaft with granular materials (RU 2456521):
 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.
 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.
 The sealing device of rotary kiln / 2231726
The invention relates to mechanical engineering and can be used to seal the input places of the retort in loading and unloading the camera
 Seal rotary kiln / 2047827
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
 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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FIELD: metallurgy. SUBSTANCE: 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. EFFECT: reliable sealing of the shaft in the furnace hot area is ensured and low maintenance cost. 1 dwg
The device is designed for shaft seals in the furnace with high temperature and can be used in the seal pyrolysis, cement and other burning furnaces operating with bulk materials in the building materials industry. It is known device SEAL ROTARY KILN". Patent No. 2047827, EN, C1, MPK F27B 7/24. Application: 5044150/33, 26.05.1992. Published: 10.11.1995. 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. The disadvantage is the low reliability due to the use of ropes and springs. It is known device the SEAL BETWEEN the FIXED CAMERA AND the ROTARY KILN". Application: 96112038/03, 27.09.1998 EN, AND, MPK F27B 7/24. 1. The seal between the fixed camera and the rotary kiln, comprising a fixed and a movable cylindrical shell and a sealing element between them from a cylindrical spring with a filler, characterized in that the cylindrical spring screwed into the holes on the end of movable or immovable shell. 2. The seal according to claim 1, characterized in that the cylindrical spring is supplied attached to it a short push of the shell. The disadvantage is the low reliable is here because of the use of springs. It is known device "AUGER TO move the SOLID MATERIAL WITH the SEALING STRUCTURE AND METHOD of PRODUCTION of the reduced METAL WITH ITS USE". EN. Patent No. 2299389, C2, IPC F27B 7/24 (2006.01), F27D 3/08 (2006.01). Application: 2005127625/02, 25.12.2003. The invention relates to a sealing structure of the auger for feeding solids, in particular, of the screw to align the source material and the auger for unloading the product that is installed in the heating furnace, capable of lifting auger feed solids with a guaranteed ensure the integrity of the heating furnace even during operation. The driving shaft of the auger for feeding solids passes through the through holes formed in both side walls of the heating furnace, and is supported on the raised abutment devices installed on both outer sides of the furnace. The design provides sealing units installed outside the furnace at the outer edges of the through holes that surround the through hole from the outside on the periphery, and the movable plates having apertures for sliding the drive shaft of the auger. The movable plates are in contact with the sealing blocks through sealing elements while maintaining the ability to move in the vertical direction. (Prototype). The disadvantage is the complexity and unreliability. p> The technical result is the creation of a reliable and simple shaft seal when working with bulk materials using augers feed material in the working of the hot zone of the furnace.The technical result is achieved in that the sealing Device is auger shaft furnace granular materials" consists of the auger shaft, a stationary sleeve in the area of the shaft seal is made from a sleeve of ductile material and has on the outer surface of helical grooves with polished surface and slopes with angles, excluding samosoglasovannye material in the grooves, namely less than 10 degrees, while the stationary sleeve has on the inner surface of the groove with the direction of rotation in the direction opposite to the direction of the shaft, and these grooves also have a polished surface, and the slopes of the grooves have corners, excluding samosoglasovannye material, and the direction of rotation the shaft provides a squeezing these two grooves of the material back into the oven. The drawing shows the Device shaft seal screw furnace granular materials". The sealing device is auger shaft furnace with bulk materials made from the shaft of the screw (1), the stationary sleeve (2), characterized in that in the area of the seal (3) shaft (1) is made with nut (4) from high-strength material and has on the outer surface (5) SPIRA is performance communications groove (6) with polished surface and slopes (7) with corners, excluding samosoglasovannye material (8) in the groove (6), namely less than 10 degrees, while the stationary sleeve (2) has on the inner surface (9) of the groove (10) to the direction of rotation in the direction opposite to the direction of the shaft (1), and these grooves (10) also have a polished surface, and stingrays (11) of the groove (10) are the angles, excluding samosoglasovannye material, and the direction of rotation of the shaft (1) provides for the extrusion of these two grooves (6/10) of the material (8) back into the furnace (12). Material (8) moves with the shaft of the screw (1). Material (8) gets into the cavity (13) between the shaft (1) with nut (4) and the stationary sleeve (2). Fills partially grooves (6/10) on the sleeve (4) and sleeve (2). The rotation direction of the grooves (6/10) the opposite. During the rotation of the shaft (1) both grooves (6/10) try to squeeze back trapped in the cavity (13) of the material (8). This opposite movement of the material (8) is aligned with the inlet pressure and extrusion. Material (8) further into the cavity (13) is not progressing, creates a sealing cap (14). This device will work, while on the shaft (1) on the sleeve (4) and sleeve (2) will remain grooves (6/10). When they wear change sleeve (2/4). This eliminates the ingress of air into the furnace (12) and the eruption of the furnace (12) material (8). Techno-economic indicators are significantly higher than the prototype, since it is in the high seal reliability and low maintenance cost. The sealing device is auger shaft furnace with bulk materials containing seal sleeve, characterized in that the seal shaft provided with a sleeve of ductile material and has on the outer surface of helical grooves with polished surface and slopes with angles greater than 10° to avoid samozakryvaniya in the grooves of the bulk material, these sealing sleeve has on its inner surface grooves with polished surface made with a direction of rotation opposite to the rotation shaft side, and rays with angles, excluding the possibility of samozakryvaniya granular material in the grooves, and the direction of rotation of the shaft enables the extrusion of granular material back into the oven.
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