SU1338965A1

SU1338965A1 - Apparatus for secondary cooling of continuously-cast billets

Info

Publication number: SU1338965A1
Application number: SU864064520A
Authority: SU
Inventors: Андрей Александрович Целиков; Анатолий Соломонович Смоляков; Юрий Моисеевич Айзин; Александр Александрович Антонов; Александр Дмитриевич Беренов; Борис Данилович Радченко; Адольф Алексеевич Смирнов
Priority date: 1986-04-30
Filing date: 1986-04-30
Publication date: 1987-09-23

Abstract

Изобретение относитс к непрерывной разливке металлов. Целью изобретени вл етс улучшение качества заготовок и увеличение дапазона регулировани интенсивности охлаждени . Устройство содержит сварной корпус с полост ми дл воды и воздуха, образованными перегородкой, расположенной вдоль его продольной оси. В перегородке выполнены каналы, соедин ющие полости с водой и воздухом с форсунками . Перемешивание воды и воздуха осуществл етс в патрубках, а полученна водовоздушна смесь через форсунки подаетс на поверхность заготовки . 3 ил.The invention relates to continuous casting of metals. The aim of the invention is to improve the quality of the blanks and increase the range of control of the intensity of cooling. The device comprises a welded body with cavities for water and air, formed by a partition located along its longitudinal axis. Channels connecting the cavities with water and air with nozzles are made in the partition. The mixing of water and air is carried out in the pipes, and the resulting water-air mixture through the nozzles is fed to the surface of the workpiece. 3 il.

Description

Изобретение относитс к непрерывной разливке металлов.The invention relates to continuous casting of metals.

Целью изобретени вл етс улучшение качества заготовок, увеличение диапазона регулировани интенсивности охлаждени .The aim of the invention is to improve the quality of the blanks, to increase the range of control of the intensity of cooling.

На фиг. 1 изображено устройство, продольный разрез; на фиг. 2 - разрезы А-А на фиг. 1; на фиг. 3 - разрез Б-Б на фиг. 1.FIG. 1 shows a device, a longitudinal section; in fig. 2 shows sections A-A in FIG. one; in fig. 3 shows a section BB in FIG. one.

Устройство состоит из сварного корпуса 1 с подводами воды 2 и воздуха 3, выполненного из стального листа , разделенного вдоль продольной оси перегородкой 4 на две полости 5 и 6.. В перегородке выполнены взаимно перпендикул рные каналы 7 и 8 дл распределени и подачи воды и воздуха в патрубки 9. Патрубки 9 могут быть приварены к корпусу 1. На концах патрубков с помощью резьбы креп тс форсунки 10 дл подачи водо- воздушной смеси на поверхность непрерывно-литой заготовки. Диаметры кана- 25 ленной геометрической формы и размеров (в зависимости от конструкции форсунок) на поверхность непрерывно- литой заготовки.The device consists of a welded body 1 with water supply 2 and air 3, made of steel sheet, divided along the longitudinal axis by a partition 4 into two cavities 5 and 6. In the partition, mutually perpendicular channels 7 and 8 are made for distributing and supplying water and air nozzles 9. Nozzles 9 can be welded to the housing 1. At the ends of the nozzles, nozzles 10 are attached with a thread to feed the water / air mixture to the surface of a continuously-cast billet. The diameters of the channel-25 geometric shape and size (depending on the design of the nozzles) on the surface of a continuously cast billet.

лов 7 и .8 дл подачи воды и воздуха выбираютс в зависимости от соотношени воды и воздуха в смеси, которое в -свою очередь определ етс разливаемой маркой стали и скоростью лить .. Отклонение количества воды и воздуха в смеси находитс в пределах 1:30-1:100.7 and .8 for the supply of water and air are selected depending on the ratio of water and air in the mixture, which in turn is determined by the cast steel grade and casting speed. 1: 100.

Устройство может работать как в водовоздушном, так и в вод ном режимах при перебое в подаче воздуха. Дп работы в вод ном режиме подача воздуха отключаетс , а вода подаетс через подвод 2, далее через каналы 8, заполн также камеру 6, и распыли- ваетс через форсунки 10 на непрерьш- но-литую заготовку.The device can work both in water-air and in water regimes with an interruption in the air supply. Dip of work in water mode, the air supply is turned off, and water is supplied through inlet 2, then through channels 8, also filling chamber 6, and is sprayed through nozzles 10 onto a continuously cast billet.

Оптимальное соотношение диаметров каналов дл подачи воды и воздуха составл ет 0,5-1,5. При уменьшенииThe optimum ratio of the diameters of the channels for supplying water and air is 0.5-1.5. While decreasing

3535

Claims

30 claims

A secondary cooling device for continuously cast billets containing a collector with a partition dividing it into two cavities with water and air inlets and nozzles, characterized in that, in order to improve the quality of the billets and increase the control range, the cooling intensity The septum has channels that connect each of the cavities with the nozzles, and the ratio of the diameters of the channels of the water and air supply is 0.5-1.5.

40

a ratio of less than 0.5, the reliability of operation of the device is reduced due to an increased likelihood of clogging. An increase in the channel diameter ratio of more than 1.5 leads to a decrease in the range of control of the intensity of cooling due to the occurrence of a pulsation of the air-water mixture.

The device works as follows.

Water and air under a pressure of 0.4-0.6 MPa are fed into the housing 1 through the inlets 2 and 3 located in the center

enclosures. Then they fall into cavities 5 and 6 and, evenly distributed at the height of the collector, enter through mutually perpendicular holes 7 and 8, filled into the partition,

in the pipe 9, where the mixing of water and air and the formation of water-air mixture. Next, the air-water mixture is fed through the nozzles 10 in the form of a water-air plume.

five

A secondary cooling device for continuously cast billets containing a collector with a partition dividing it into two cavities with water and air inlets and nozzles, characterized in that The septum has channels that connect each of the cavities with the nozzles, and the ratio of the diameters of the channels of the water and air supply is 0.5-1.5.

0

1

CPU r. 2

-B

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Fig.Z

Compiled by A. Popov Editor S. Pekar Tehred M. Didyk

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VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

Corrector B, But ha