SU707975A1

SU707975A1 - Unit for processing and casting melts

Info

Publication number: SU707975A1
Application number: SU772514641A
Authority: SU
Inventors: Василий Данилович Лахманюк; Евгений Александрович Таран; Ефим Борисович Шицман; Григорий Абрамович Яровинский
Original assignee: Научно-Исследовательский Институт Специальных Способов Литья
Priority date: 1977-08-01
Filing date: 1977-08-01
Publication date: 1980-01-05

Description

Известна установка дл обработки и разливки расплавов, содержаща емкости со сливными отверсти ми, крышки , перемешиватели, бункер и дозатор дл ввода реагентов, узел герметизации и узел создани избыточного давлени в емкости и удалени из не.е газов 4 .A known device for processing and casting melts, comprising containers with drain holes, lids, agitators, a hopper and a metering unit for entering reagents, a sealing assembly and an assembly for creating an overpressure in the tank and removing gases from it. 4.

Цель изобретени - повышение производительности при обработке расплавов , экономи производственной площади и расширение области применени .The purpose of the invention is to increase the productivity in the processing of melts, saving production space and expanding the scope.

Поставленна цель достигаетс за счет того, что установка снабжена поворотным столом и расположенной в центре него неподвижной стойкой, имеющей установленную в ее верхней части фиксируемую траверсу, на которой неподвижно установлен дозатор и размещены три или более крышки, причем на двух крышках установлены перемешиватели расплава, рабочие органы которых подвижны в вертикальной плоскости а один из них снабжен приводом вращени вокруг своей оси, при этом одна из крышек дополнительно снабжена механизмом дозировани модификатора и механизмом закрыти сливного отверсти , установленным под крышкой соосно отверстию.The goal is achieved due to the fact that the installation is equipped with a rotary table and a fixed stand located in the center of it, which has a fixed traverse fixed in its upper part, on which the dispenser is fixedly mounted and three or more lids are placed, and the two organs of which are movable in a vertical plane and one of them is equipped with a rotation drive around its axis, while one of the caps is additionally equipped with a modifier dosing mechanism and m mechanism of closing the pouring opening, coaxially mounted under the lid opening.

На боковой поверхности корпуса перемешивателей в их нижней части могут быть выполнены загрузочные отверсти , которые с одной стороны сообщаютс с нижними част ми бункеров, а с другой - с внутренней подостью корпуса,On the side surface of the agitator housing in their lower part, loading openings can be made, which on one side communicate with the lower parts of the bins, and on the other with the internal bottom of the tank,

В верхней части носков сливных отверстий емкостей целесообразно выполнить отверсти , соедин ющие внутреннюю полость Верхней части носка с атмосферой .In the upper part of the toes of the drain holes of the containers, it is advisable to make holes that connect the internal cavity of the Top of the sock to the atmosphere.

Дозаторы могут быть снабжены цилиндром дл набора и подачи дозы модификатора в емкость,Dispensers can be fitted with a cylinder to set and supply a dose of modifier to the tank,

, На фиг, 1 :представленаi предлагаема установка, вид сверху; на фиг,2 разрез А-А фиг.1; на фиг, 3 - разрез Б-Б фиг,1., Fig, 1: shows the proposed installation, top view; Fig, 2 section aa of figure 1; Fig, 3 is a section BB of Fig, 1.

Установка состоит из поворотного стола 1, опорных катков 2, рельсового пути 3, основани 4, фундаметной плиты 5, емкостей 6 с носками 7, выпускными втулками 8, уплотн ющими коллекторами 9, крышки 10 с уплотн ющим коллектором 11, трубки 12, уплотн ющего кольца 13, крышки 14, цилиндра 15, уплотнител 16, центральной стойки 17, траверсы 18, привода перемешиваНИИ 19, бункеров 20 и 21, крышек 22 и 23, модификаторов 24 и 25, цилиндра 26, дозатора 27, перемешивател 28, .загрузочного окна 29, дозатора 30, дилиндров 31 и 32, кронштейна 33, дозатора 34 дл рафинирующих присадок привода поворота сто.па 35, цилиндров 36 и 37, крышки 38, емкости 39, штанги 40, кронштейна-41, привода 42, перемешивател 43, цилиндра 44,The installation consists of a turntable 1, support rollers 2, a rail track 3, a base 4, a foundation plate 5, tanks 6 with socks 7, outlet sleeves 8, sealing headers 9, a cover 10 with a sealing collector 11, a tube 12 sealing rings 13, covers 14, cylinder 15, compactor 16, central pillar 17, crosshead 18, mixing drive 19, hoppers 20 and 21, covers 22 and 23, modifiers 24 and 25, cylinder 26, dispenser 27, stirrer 28, loading window 29, dispenser 30, cylinders 31 and 32, bracket 33, dispenser 34 for refining additives drive p Turning sto.pa 35, cylinders 36 and 37, covers 38, containers 39, rods 40, bracket-41, actuator 42, stirrer 43, cylinder 44,

Установка имеет три- рабочих позиции The unit has three working positions.

Позици I - заливка жидкого чугуна в емкость и десульфураци чугуна; позици II модифицирование чугуна; позици III - разливка модифицированного чугуна.Position I - pouring molten iron into a container and desulfurizing the iron; position II cast iron modification; position III - casting of modified iron.

Установка работает следующим образом .The installation works as follows.

Когда установка находитс в позиции I, в емкость 39 при отведенной в сторону крышке 38 заливают жидкий чугун , счищают с зеркала меташла шлак, из дозатора 34 выдают дозу десульфуратора (карбида кальци и др,) на зекало металла, перемещают крышку 38 и накрывают ею емкость 39, цилиндром 4 Ъпускают перемешиватель 43 в металл с помощью привода 42 перемешивают металл и десульфуратор.When the unit is in position I, liquid iron is poured into the container 39 with the lid 38 set aside, the slag is poured from the mirror, the desulphurizer (calcium carbide, etc.) is dispensed from the mirror to the metal eye, the lid 38 is moved and the container is covered 39, by cylinder 4, the stirrer 43 is released into the metal by means of the actuator 42, the metal and the desulfurizer are stirred.

После окончани десульфурации поднимают перемешиватель 43 в верхнее положение и производ т поворот стола 1 на 120, При этом емкость с рафинированным чугуном перемещаетс в позицию II модифицировани чугуна, аAfter desulfurization is completed, the stirrer 43 is raised to the upper position and the table 1 is rotated by 120. At the same time, the tank with refined cast iron is moved to position II of the cast iron, and

в очередную пустую емкость производ т заливку и десульфурацию чугуна. Цилиндрами 36 и 37 опускают крышку 14 вниз и с помощью кольца 13 и уплотнит ельного коллектора под крышкой герметизируют емкость .(при этом трубка 12 находитс под крышкой 14 и полость носка 7 соединена с пространством над зеркалом металла через зазор между верхним торцом емкости и крышкой 14),Casting and desulfurization of cast iron is carried out into the next empty container. Cylinders 36 and 37 lower the lid 14 down and seal the container under the lid 13 and the sealing manifold under the lid (the tube 12 is under the lid 14 and the cavity of the nose 7 is connected to the space above the metal mirror through the gap between the upper end of the tank and the lid 14 ),

Полна герметизаци пространств над зеркалом металла в емкости и носке на позиции модифицировани и создание в этих пространствах избыточного давлени обеспечиваютс герметизацией бункеров дозаторов крышками 22 и 23, уплотнением в коллекторе 11, а также закрытии отверсти выпускной втулки 8 путем прижати уплотнител 16 к коллектору 9.The complete sealing of the spaces above the metal mirror in the tank and the toe at the modifying position and the creation of overpressure in these spaces are ensured by sealing the dosing bins with caps 22 and 23, sealing the manifold 11, and closing the opening of the outlet sleeve 8 by pressing the seal 16 to the collector 9.

Claims

The cylinder 31, moving the dispenser 30, delivers the dose of modifier 24 through the window 29 to the metal mirror in the vessel. Using the stirrer 28, mix the metal and the modifier and then perform the secondary modification in the same way, for example, α-ferrosilicon 25, also using the stirrer 28 to poach, After that, the overpressure is removed and gases are sucked out of the space, then, by lifting the stirrer 28 and the cover 14 to the upper position, the table 1 is rotated by another 120. At the same time, the container with the modified iron comes down on position III of modified cast iron. The cylinder 32 lowers the cover 10 down and at the same time seals the cavity only above the metal mirror in the vessel 6, as the tube 12 connects the cavity of the nose 7 with the atmosphere. By creating an excess pressure on the mirror, the cast iron is cast while the metal is lifted through the siphon channel, drunk through the opening of the sleeve 8 until the excess pressure in the cavity of the container remains. B. After casting the iron from the first tank, after filling it with the next portion of liquid iron, slag is removed and all subsequent operations are repeated. All three tanks have detachable socks and quick-change sleeves of the nose 8. All containers are fixed on the table 1 in their cassettes and removed from them in radial directions from the center. Due to the presence in it of three containers mounted on the turntable, means for dosing to the input of additives, conditions were created for simultaneously performing pouring and desulfurization, modifying and casting operations at self-contained positions. In each of the three tanks, the pouring and desulfurization, modifying and discharging of the melt are carried out in sequence. Such a constructive solution is achieved high: the performance of the proposed ho installation is compared with the known ones. Along with this, an optimal consumption of additives is achieved. Due to the fact that the installation combines the functionality of the filling machine, there is no need to install the equipment, which saves production space, the bucket truck is released, since the filling can be made into the container directly from the furnace. The following technological advantages are provided. The time for delivery and pouring of the source of liquid iron into the bone is reduced by placing the installation near the furnace, thereby reducing the temperature loss of the metal before it is processed. The separation of desulfurization and modification operations is provided, which saves the modifier and improves the quality of the iron. Mechanization of secondary modification is provided directly in the tank, which improves the quality of the iron. The possibility of under pressure overpressuring is provided, which preserves the effect of modification. Filling of more pure cast iron through a siphon is provided. Claim 1. A unit for processing and pouring melts, containing containers with drain holes, lids, stirrers, a hopper and a metering unit for entering reagents, a sealing unit and a unit for creating an overpressure in the tank and for the removal of gases from it, characterized in that , in order to increase the production of the body during the processing of the melt, it is equipped with a rotary table with a fixed stand located at the E center of it, the upper part of which is equipped with a fixed traverse, on which the dispenser is fixed and placed and or more lids, with melt mixers mounted on two lids, the working bodies of which are movable in a vertical plane, and one of them is equipped with a rotation drive around its axis, while one of the lids is additionally equipped with modifier dosing mechanisms and a drain hole closing mechanism installed by noyy the cone is coaxial with the hole. 2. The installation according to claim 1, about t .. and often with the fact that on the lateral surface of the agitator housing in the bottom of the lower part there are loading holes, which are connected to the lower parts of the bins on the caustic side, and q - with internal P - /. 3. Installation on n, l, o tn and h s y and with that that is upper :; The socks of the drain holes of the containers are provided with holes that connect the internal cavity of the upper hour; atmosphere. 4. Installation according to claim 1, characterized in that the dispensers are provided with a cylinder for setting and supplying a dose of modifier to the container. Sources of information taken into account in the examination 1. Prospect of the Swedish company ASEA AI 10-103, 1973, edition 2.

2. USSR author's certificate number 344000, cl. From 21 to 1/00, 1972,

3. Journal of Foundry, 1975, No. 8, p. 45.

4. USSR author's certificate 481646, cl. C 21 C 7/00, 1974.