SU89337A1

SU89337A1 - Intermediate heated foundry ladle settling basin

Info

Publication number: SU89337A1
Application number: SU392681A
Authority: SU
Inventors: П.В. Губчевский; М.Н. Лейбов; Л.Л. Самарин
Original assignee: П.В. Губчевский; М.Н. Лейбов; Л.Л. Самарин
Priority date: 1949-03-02
Filing date: 1949-03-02
Publication date: 1949-11-30

Description

Основным недостатком производства .лкть непосредственно из доменной печи вл ютс широкие колебани в химическом составе чугуна и выделение при остывании спели, котора ослабл ет прочность чугуна и вызывает образование рыхлости и раковин в отливках. Применение миксера способствует выравниванию состава чугуна, но не исключает образовани спели в отливках.The main disadvantage of producing lactation directly from the blast furnace is the wide variation in the chemical composition of the pig iron and the precipitation during the cooling of the sang, which weakens the strength of the pig iron and causes the formation of friability and pits in the castings. The use of a mixer contributes to leveling the composition of the cast iron, but does not preclude the formation of sang in the castings.

Дл устранени указанных влений предлагаетс примен ть промежуточный обогреваемый литейный ковш-отстойник.To eliminate these phenomena, it is proposed to use an intermediate heated foundry ladle-settler.

На чертеже дана схема расположени ковша-отстойннка.The drawing shows the layout of the settling bucket.

Доменный чугун нропускают через обогреваемый промежуточный КОВП1-ОТСТОЙНИК 1 с выпуском чугуна через летку 2 в обыкновенный литейный КОВП1 3. Дл обогрева ковша-отстойника примен ют смешанный газ, сжигаемый с помопдью мощных горелок.Blast furnace iron is passed through a heated intermediate KOVP1-STEMPER 1 with the release of cast iron through tap 2 into an ordinary foundry KOVP1 3. Mixed gas is used to heat the settling bucket, which is burned with high-power burners.

Ковш-отстойник состоит из корпуса с наклонр ым:и стенками 4 и плоским дном 5 и имеет съемный свод 6 с отверсти ми дл газовых горелок (на чертеже не показаны) и с отверстием 7 дл сменной воронки 8 дл заливки чугуна. Приклепанный к корпусу стальной литой по с имеет две опорные лапы и две пары цапф: одну пару цапф 9 дл опоры в период поворота на стенде, другую пару цапф 10 дл подъема траверсой и опрокидывани при сбросе шлака и спели с помошт ю шарнирной серьги 11, прикрепленной к днищу ковша.The settling bucket consists of a body with a sloping: and walls 4 and a flat bottom 5 and has a removable arch 6 with openings for gas burners (not shown) and with an opening 7 for a replaceable funnel 8 for casting iron. The steel-cast, riveted to the body has two supporting legs and two pairs of trunnions: one pair of trunnions 9 for supporting during the turning period on the stand, another pair of trunnions 10 for raising the crosshead and tilting during slag discharge and singing with an articulated earring 11 attached to the bottom of the bucket.

Доменный чугун заливают в ковш-отстойник в установившихс услови х работы при 1250-1280° (по Пиропто без поправки), а в форму-при Ибо-1190°. Гор чий доменный чугун подвергают замедленному остыванию в ковше-отстойнике, а холодный чугун подогревают.Pig iron is poured into a settling ladle under established conditions of operation at 1250–1280 ° (Piropto is uncorrected), and in the form of Ibo is 1190 °. Hot blast furnace iron is cooled slowly in a settling ladle, and cold iron is heated.

Ковш-отстойник предназначен не только дл выделени спели (вместе с шлаковыми включени ми), но также дл исправлени химического состава чугуна путем присадки сплавов или обработки егоThe settling bucket is intended not only for separating sang (together with slag inclusions), but also for correcting the chemical composition of cast iron by adding alloys or treating it

№ 89337No. 89337

твердыми смес ми и жидкими шлаками. Графитова спель собираетс в ковше-отстойнике на поверхности чугуна под слоем шлака и удал етс вместе с шлаком.solid mixtures and liquid slags. A graphite spel is collected in a settling ladle on the surface of the cast iron under a layer of slag and is removed along with the slag.

П р е е т изобретени The invention

Claims

1. Intermediate heated foundry ladle-settler for separating sang and slag from liquid pig iron and for controlling its chemical composition with help, additives of alloys, solid mixtures and liquid slag, characterized in that it consists of a body with inclined walls and a flat bottom and has a tap for the release of iron.

2. The form of the device according to claim 1, characterized in that two supporting legs and two hubs riveted to the body are cast in two parts ;; pf: one pair of trunnions for support during the period of turn on the stand, another pair of trunnions for lifting traversing and tilting - for dumping slag and singing, with the tipping of the bucket of the axle, which is connected with the help of a hinged earring attached to the bottom of the bucket.

3. The form of the apparatus according to claim 1, characterized in that the heating of the bucket is carried out with a rotary heater equipped with gas burners that can be rotated with the trunk of the gas supply pipe around its axis by 270.

4. The form of the apparatus according to claim 1, characterized in that the bucket has a removable arch with openings for the burners 1I of the funnel for casting iron.

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