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Molten iron pot narrow gap gas-blowing slag-removing device and operation technique thereof

A technology of molten iron tanks and narrow slits, which is applied in the field of metallurgy, can solve the problems of low spray gun life and low slag removal efficiency, and achieve the effect of low labor intensity, high slag removal rate and clean slag removal

Inactive Publication Date: 2008-01-09
LAIWU IRON & STEEL GRP
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  • Abstract
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Problems solved by technology

These two kinds of spraying slag gathering devices can only drive away the slag at the dead corner through the inserted spray gun, and cannot form a controllable circulation on the liquid surface so that the scum on the surface of the molten iron moves to the mouth of the molten iron tank as a whole, and the slag removal efficiency is low. Low gun life under face

Method used

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  • Molten iron pot narrow gap gas-blowing slag-removing device and operation technique thereof

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Embodiment Construction

[0011] With reference to the accompanying drawings, the device of the present invention includes a molten iron tank 11, which is characterized by a mechanical arm composed of a first hydraulic cylinder 2 and a second hydraulic cylinder 4, a first horn 3, a second horn 6 and a movable joint 5 , the mechanical arm is provided with a blowpipe 7, and the blowpipe 7 is provided with a gas connecting pipe 8 and a nozzle 9, and the said nozzle 9 is a slit-shaped nozzle 10, which is formed by the first hydraulic cylinder 2 and the second hydraulic cylinder 4, the first hydraulic cylinder The mechanical arm formed by the horn 3 , the second horn 6 and the movable joint 5 is arranged on the trolley 1 .

[0012] The operating process adopted by the molten iron pouring narrow slit air blowing slag removal device of the present invention is:

[0013] A. First connect the gas connecting pipe 8 to the nitrogen pipe or air compressor;

[0014] B. Tilt the molten iron tank 11 by 5° to 45° at ...

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Abstract

A device for removing floss in shank and operation concerned are disclosed herewith. The device consists of a primary cylinder and a secondary cylinder, an arm with a primary amplitude bar and a secondary amplitude bar and a joint, a blowing pipe with a gas pipe and a slot-nozzle. It is operated as following: A) connecting gas pipe with air compressor or a nitrogen source, and B) declining shank at floss discharging position, regulating height of the slot-nozzle to iron liquid surface, blowing out floss out. It has advantages, e.g. working effectively, low labor strength, and less pollution.

Description

technical field [0001] The invention belongs to the technical field of metallurgy, and in particular relates to a device and an operation process for removing slag from a molten iron tank before and after the desulfurization process. Background technique [0002] At present, in order to remove the slag in the molten iron tank, the slag removal is done by using a mechanical slag removal board. The molten iron tank is tilted to the position of the slag removal board, which is just below the interface between the molten iron and the slag. The most basic requirement is that the slag in the molten iron tank should be close to the slag plate. However, only the slag around the slag opening can be quickly removed. In addition, only the slag near the slag can be removed from the tank. Medium overflow, the slag removal rate is obviously low. If you want to remove the slag in the molten iron tank, you must remove a part of the molten iron. There are workers with high labor intensity,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C7/072
Inventor 蒋鲤平许荣昌陈艳辉孙会朝亓显玲
Owner LAIWU IRON & STEEL GRP
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