Starodubtcev Boris I.

The disadvantage of this device is that the motor-reducer which moves the carriage, is fixed directly on it, i.e. during its movement along the broad wall of the mold is in a zone of intense thermal radiation, and the electrical cable, supplying power to the drive motor, during operation executes a motion in space along a complicated trajectory causing subjected to bending loads acting Poston, which significantly reduces the reliability of the device and the safety of its operation.

2. Feasibility of establishing this unit

The basis of the invention is to improve the reliability and safety of operation of dispensersfine materials into the mold slab continuous casting machine , which , by placingDrive gearmotor moving carriage at a distal end relative to the pivot-arm and to provide transfer of the moldtorque from the gear mechanism to move the carriage by a shaft and bevel gear pairs , excluded intensivethermal vozdestvie the motor side of the liquid steel located in the mold and moving the supply cablespace, causing his breaks

The problem is solved in that the device for continuous dispensing slagging mixture into the mold slab machinecontinuous casting of billets , comprising a stationary hopper with a consumable disposed powdery or granular mixture , equipped with aits lower part of the receiving chamber , a flexible metal conduit connected with an inclined feed toe with gear motor for rotationvertical shaft , the bottom of which is mounted coaxially with the shank in the receiving chamber and is rigidly connected to a steel spiral placed with the possibilityrelative rotation in a flexible metal conduit along its entire length , and inclined feed sock attached to the carriage , having the ability to movewith a geared motor located on the horizontal beam , a vertical axis by hinged in its middle part at the endbearing swivel arm and having the opportunity to plane-parallel movement in the horizontal plane relative to the broad wallmold according to the invention , the console is made hollow and geared motor mounted at the distal end thereof from the moldand a shaft connected with a shaft mounted in bearing supports in its cavity and provided with a bevel gear meshedconical wheel having rotatable about a vertical hinge axis disposed horizontally connecting beamand a console , and also meshing with the bevel pinion shaft , mounted in bearings on a horizontal beam and associated with the carriagerope means that one turn encircles it and is attached at its ends to two opposite sides of the carriage.

FIG. 1 shows a side view of an apparatus for dispensing a continuous slagging mixture into the mold slab continuous casting machine.

FIG. 2 shows a front view of an apparatus for dispensing a continuous slagging mixture into the mold slab continuous casting machine.

FIG. 3 shows a top view of an apparatus for continuous dispensing the mixture into the slagging   mold slab continuous casting machine.

FIG. 4 shows a bypass element I in Figure 1.

FIG. 5 illustrates remote unit II in Fig. 1.

3. Device description

The proposed device comprises a hopper 1 with a mixture of two consumable rigidly mounted on a metal structure and provided with a 3in the lower part of chamber 4 associated flexible metal sleeve 5 with an inclined feeding toe 6. Inside the hopper 1 into the bearing supports 7 and 8mounted vertical shaft 9 of which lower shank coaxially arranged in the chamber 4 and is rigidly connected with a steel coil 10 , disposedcapable of relative rotation in a flexible metal sleeve 5 along its entire length. At the top of the hopper 1 set gearmotor 11 ,which by means of coupling 12 is connected to the vertical shaft 9 . Inclined feed sock 6 is secured to the carriage 13 having the opportunityreciprocating roller 14 in C-shaped rails horizontally disposed beam 15. this barvia its associated rigid arm 16 and a vertical shaft 17 is pivotally mounted at its middle portion at one end of a hollow carrierthe pivot-arm 18 to the second end of which by means of two vertical pins 19 and 20 attached to the metal 3 . the bracket 16 is rigidlyattached to the lever 21 by a rod 22 and the pins 23 and 24 are pivotally connected with the metal element 25 3 . Dimensions element 25 rods 22 , the lever 21and pivot arm 18 are chosen so that they together form a parallelogram mechanism by which beam 15 is ablea plane- parallel movement in the horizontal plane relative to the wide wall of the crystalliser 26 , from which the tundish 27 through the dip glass 28 enters the molten steel . To move the carriage 13 along a horizontal beam 15 of the gear motor 29 mounted on the far After the mold 26 and the swing arm 18 associated with the shank of the shaft 30 mounted in bearing supports 31 and 32 in the cavity of the console. On the other shank of the shaft 30 is rigidly fixed bevel gear 33 meshing with a bevel gear 34 having a  rotatable about a vertical axis 17 , which connects the beam 15 and bracket 18. bevel gear 34 meshes conical gear shaft 35 mounted in supports 36 and 37 for the horizontal girder 15 and is rigidly provided with two discs with clearance zakreplennmi 38 39, between which it encircles one coil cable 40 enveloping blocks mounted on axles 41 and 42, and attached to the tensioning screws 43 and 44 to two opposite sides of the slide 13 . At the ends of beams 15 arranged movable limit switches 45, 46 for reversing gear motor 29.  The output shaft of the gear motor 47 mounted on rails 3 through 48 of the crank , the connecting rod 49 and pin 50 is connected to the swivel bracket 18.

4.Principle of operation of the dispenser

The device operates as follows. Before you start casting hopper 1 is filled with a mixture of 2 shlakooborazuyuschey and to adjust the positioninclined feeder sock 6 relative to the front wall of the mold 26 wide so as not to sock being touchedin the mold casting nozzle 28 of the tundish 27. Said adjustment is made by turning the hollow on the console 18vertical fingers 19 and 20 with a geared motor 47 associated with it by the crank 48, a rod 49 and pin 50 . Due tothat is rigidly connected with a steel 3 element 25 , Rod 22 , turning 18 and lever arm 21 form a parallelogram mechanismby rotating the support arm 18 and arm 21 is rigidly associated with the bracket 16 to the beam 15 make plane- parallel movementin the horizontal plane relative to the wide wall of the crystalliser 26 and thereby provide the possibility of arranging it in parallel atrequired removal of beams 15 , depending on the desired thickness slab blanks , which is supposed to be cast . Then the limit switches 45and 46 mounted on the beam 15 opposite the narrow walls kristallizatoora 26.

After starting the stream of continuous casting machine, when the level of liquid steel in the mold 26 rises to the set level, Start exercise gear motor 11 is provided through the sleeve 12 rotatably installed in the bearings 7 and 8 vertical shaft 9.

Together with nine shafts will rotate rigidly connected with it steel spiral 10 . Rotating spiral 10 turns its upper part , located in the chamber 4 of the hopper 1 , performs sampling and slagging mixture via a flexible pipe 5 transports it toinclined feeding toe 6. Upon receipt of the start slagging mixture sock 6 on the mirror in a metal mold 26 rungearmotor 29, which starts to rotate the shaft 30 mounted in supports 31 and the console 32 in the cavity 18. Thus anchored at itsshank bevel gear 33 rotates about the vertical axis 17 of the bevel gear 34 , the transmissionkonicheskokomu rotation shaft pinion 35 mounted in bearings 36 and 37. Upon rotation of the pinion shaft 35 40 rope wrapped around its single loopbetween the discs 38 and 39 enveloping components 41 and 42 and connected by means of tension screws 43 and 44 to the carriage 13 will cause it to move onroller 14 with respect to the feed -toed 6 C- shaped guides a horizontal beam 15 along the broad wallcrystallizer 26.

Thanks installed at the ends of beams 15 sliding limit switches 45 and 46 are separated by a distance equal to the width cast slab blanks, and a switch mounted on the carriage 13 (conventionally not shown), the gear-motor 29 is reversed at the moment finding in the extreme positions of the carriage, whereby it makes reciprocating movement along a broad wall of the mold, providing feed into its cavity shlakooborazuyuschey mixture in continuous mode with a predetermined rate.

If necessary, the rapid replacement of faulty nozzle of course serial casting, as well as after its completion devicetransferred from the operating position to the parking position, which stops the motor drive gear 29 of the carriage 13 and rungeared motor 47, which, acting through the crank 48, the rod 49 on the console 18, povrachivaet it by an angle of 90° . When turning the console 18thanks parallelogram mechanism, beam 15 along with the carriage 13, making the plane-parallel movement relative crystallization 26 frees workspace near the tundish tundish 27 as shown.

Thus, due to the fact that in the disclosed device, the drive of motor-reducer 29 mounted stationarily on the opposite After the mold swing arm 18 is not subjected to intense thermal action on the part of the liquid metal, and the cable inlet to motor-gearbox power, not srovershaet movement in space, ie not subjected to bending deformation, improved reliability proposed a mechanical system and its simplified-Hour and operation.

Conclusions

Данное устройство собрано в лабораторных условиях, на нём неоднократно были проведены исследования, которые показали все его достоинства и простоту управления. Данный дозатор можно использовать на слябовых МНЛЗ, он отличается своей универсальностью и компактностью, а также экономит расход самой шлакообразующей смеси и расход энергии потребляемой на работу всех его механизмов. Обеспечивает равномерную подачу ШОС таким образом обеспечивая повышение качества стали.

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