SU771450A1

SU771450A1 - Chute for teeming metal from furnace

Info

Publication number: SU771450A1
Application number: SU792716105A
Authority: SU
Inventors: Александр Алексеевич Меркулов; Александр Анатольевич Соколов; Анатолий Константинович Селиверстов; Евгений Анатольевич Следзь; Николай Константинович Пащенко; Леонид Михайлович Гуменюк
Original assignee: Научно-Исследовательский И Опытноконструкторский Институт Автоматизации Черной Металлургии
Priority date: 1979-01-22
Filing date: 1979-01-22
Publication date: 1980-10-15

Description

1one

Изобретение относитс к черной металлургии , в частности к устройствам дл выпуска металла из печи.This invention relates to ferrous metallurgy, in particular, to devices for tapping metal from a furnace.

По основному авт. св. № 648818 известен желоб дл выпуска металла из печи, который осуществл ет более равномерное наполнение ковшей металлом за счет заслонок , закрепленных на горизонтальных ос х, установленных на стенках рукавов и кинематически св занных между собой зубчатой передачей 1.According to the main author. St. No. 648818 is known a chute for discharging metal from a furnace, which provides a more uniform filling of buckets with metal due to dampers fixed on horizontal axes mounted on the walls of the sleeves and kinematically interconnected by gear 1.

Однако указанный желоб не может быть использован при выпуске металла в ковши различной емкости, так как при этом необходимо обеспечить различные расходы металла в рукавах желоба. Кроме того, известный желоб при длительной эксплуатации может не обеспечивать равенства расходов металла в рукавах. Это св зано с возможностью нарушени равенства проходных сечений при длительной эксплуатации из-за неравномерного износа огнеупорных заслонок и футеровки руковов в местах установки заслонок. Указанные недостатки могут быть устранены путем индивидуального поворота заслонок дл обеспечени However, this chute cannot be used when metal is discharged into buckets of various capacities, since it is necessary to ensure different costs of metal in the gutter sleeves. In addition, the well-known chute during long-term operation may not ensure equality of the costs of metal in the sleeves. This is due to the possibility of violating the equality of flow areas during long-term operation due to the uneven wear of the refractory dampers and the lining of sleeves in the places where the dampers are installed. These deficiencies can be eliminated by individually turning the flaps to ensure

перенастройки расходов металла в рукавах желоба.reconfiguration of metal costs in the gutter sleeves.

Целью изобретени вл етс обеспечение регулировани расходов металла.The aim of the invention is to provide control of metal consumption.

Это достигаетс тем, что одна из шестерен зубчатой передачи установлена на оси подвижно и св зана с механизмом перемещени , а оси заслонок кинематически соединены с пневматическими приводами поворота заслонок.This is achieved by the fact that one of the gears of the gear mechanism is mounted on the axis movably and is connected with the movement mechanism, and the axes of the valves are kinematically connected with pneumatic actuators for the rotation of the valves.

10 На фиг. 1 изображен предлагаемый желоб; на фиг. 2 - то же, вид по стрелке А на фиг. 1.10 FIG. 1 shows the proposed gutter; in fig. 2 is the same, view along arrow A in FIG. one.

Желоб дл выпуска металла из печи содержит огнеупорные заслонки 1 и 2, оси 3The chute for releasing metal from the furnace contains fireproof valves 1 and 2, axis 3

5 и 4 которых установлены в подшипниках 5, закрепленных на металлоконструкции желоба в начале рукавов. Оси 3 и 4 посредством рычагов 6 и т г 7 соединены с пневмоцилиндрами 8, а между собой - шестерн ми 95 and 4 of which are installed in bearings 5, mounted on the metal gutter at the beginning of the sleeves. Axes 3 and 4 are connected to pneumatic cylinders 8 by means of levers 6 and 7 and 7, and between them are gears 9

Claims

20 and 10. The axis 3 is made hollow and inside it there is a rod 11 connected to the movement mechanism 12 and to the movement fork 13. The gear 9 is mounted on the axis 3 in the splines, i.e. movably. The chute works as follows. When metal is released from the furnace, the refractory dampers 1 and 2 are rotated around the axes 3 and 4, fixed in bearings 5 on the metal constructions of the gutter heads, under the pressure of the metal flow. At the same time, the cavities of the pneumatic cylinders 8 are connected to the atmosphere, which ensures free rotation of the valves 1 and 2 around their axes 3 and 4. Gears 9 and 10 are heated, which ensures equal metal consumption in the sleeves with equal dimensions of the valves 1 and 2 and equal sections x gutter sleeves in places of installation of gates. If the equal costs of metal in the gutter sleeves are disrupted due to uneven wear of the linings or the gutter sleeves, the mixing mechanism 12 moves the stem 11 into the axis 3 of the flap 1 and the displacement fork 13 pulls the gear 9 out of its engagement. and the movement of the rod 7 and the lever 6 rotates one of the axes 3, 4 of the flaps I, 2, which leads to a change in the flow area of one of the sleeves of the gutter. After the equality of costs is established by the movement mechanism 12, the pins 11 moves out of the axis 3 of the flap 1 and the movement fork 13 engages gear 9. The cavities of the pneumatic cylinder are then connected to the atmosphere, which ensures free rotation of the flaps 1 and 2 around the axes 3 and 4 and thereby It does not support equality of costs in the gutter sleeves. When metal is released into buckets of various capacities, the metal flow through the sleeves is adjusted in the same way. In the described trough, the pneumatic cylinders can be matched with metal weight sensors in the casting ladles, which makes it possible to automate the process of uniformly filling the ladles with metal. The use of the invention will allow the metal to be evenly distributed over the sleeves of the forked gutter even when changing the flow areas at the places of installation of the valves associated with the uneven wear of the refractory valves and the lining of the sleeves. This will ensure long-term operation of the flaps, which will reduce the required number of them and reduce the complexity of installation operations. The proposed trough will also allow the release of metal into the carpets of various capacities by pre-setting the flow areas of the sleeves with movable flaps or their individual movement during the release process. In addition, the mechanisms for moving the dampers provide for closing the flow areas of the gutter sleeves, which can be used to cut off the slag after the metal has been discharged. This is especially important when processing metal with synthetic slags, which significantly improves the quality of the metal produced. Invention Chute for discharging metal from a furnace according to ed. St. No. 648818, characterized in that, with the aim of controlling the flow of metal, one of the gears of the gear mechanism is mounted on the axis movably and connected with the movement mechanism, and the axes of the dampers are kinematically connected with pneumatic drives of the rotation of the dampers. Sources of information taken into account during the examination 1. USSR author's certificate No. 648818, cl. F 27 D 3/15, 1977.

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