阅读说明：本技术 一种炼钢渣罐底部预先放置废旧残砖的防粘结控制方法 (Anti-bonding control method for pre-placing waste and old residual bricks at bottom of steelmaking slag tank ) 是由 刁望才 麻晓光 张怀军 杨泽 罗海明 田野 韩春鹏 张胤 张立通 于 2020-05-25 设计创作，主要内容包括：本发明公开了一种炼钢渣罐底部预先放置废旧残砖的防粘结控制方法,其是在渣罐承载钢渣前,在渣罐底部预先放置一定量干燥的废旧残砖,然后再进行承载钢渣。本发明的目的是提供一种炼钢渣罐底部预先放置废旧残砖的防粘结控制方法,能够有效的控制炼钢渣罐粘结,解决由于渣罐粘钢带来的一系列问题。(The invention discloses an anti-bonding control method for pre-placing waste and old bricks at the bottom of a steelmaking slag pot, which is characterized in that a certain amount of dry waste and old bricks are pre-placed at the bottom of the slag pot before the slag pot bears steel slag, and then the steel slag is borne. The invention aims to provide an anti-bonding control method for pre-placing waste and old residual bricks at the bottom of a steelmaking slag pot, which can effectively control bonding of the steelmaking slag pot and solve a series of problems caused by steel bonding of the slag pot.)

1. An anti-bonding control method for pre-placing waste and old residual bricks at the bottom of a steelmaking slag pot is characterized in that: before the slag pot bears the steel slag, a certain amount of dry waste bricks are placed at the bottom of the slag pot in advance, and then the steel slag is borne.

2. The anti-sticking control method of a waste and old brick placed in advance at the bottom of a steel-making slag pot according to claim 1, characterized in that: and (3) placing about 2 tons of dried waste residues at the bottom of the slag pot in advance by using a loader.

3. The anti-sticking control method of a waste and old brick placed in advance at the bottom of a steel-making slag pot according to claim 1, characterized in that: 1.5 to 2.5 tons of dried waste bricks are placed at the bottom of the slag pot in advance.

4. The anti-sticking control method of a steel-making slag pot bottom pre-placing waste and old bricks according to claim 3, characterized in that: 2 tons of dried waste bricks are placed at the bottom of the slag pot in advance.

5. The anti-sticking control method of a waste and old brick placed in advance at the bottom of a steel-making slag pot according to claim 1, characterized in that: the filling height of the waste residual bricks is 300mm-350mm from the bottom to the top.

6. The anti-sticking control method of a steel-making slag pot bottom pre-placing waste and old bricks according to claim 5, characterized in that: the filling height of the waste residual bricks is 330mm from the bottom to the top.

Technical Field

The invention relates to the technical field of ferrous metallurgy, in particular to an anti-bonding control method for pre-placing waste and old residual bricks at the bottom of a steelmaking slag tank.

Background

The slag pot is mainly used for bearing converter steel slag, refining furnace steel slag, continuous casting large ladle casting residual steel slag and the like. Most of molten steel remains in the converter after tapping of the converter, particularly, the lining is seriously eroded and uneven in the later period of the converter service, the amount of the remaining molten steel is increased, and the molten steel and the steel slag are mixed and enter a slag pot when the converter pours slag. The ladle casting residue contains a certain proportion of molten steel, and particularly, when high-quality steel is produced, the ladle casting residue contains more molten steel. The temperature of the molten steel is mostly above 1500 ℃, the part of the slag pot which is washed is easy to melt, because the density of the molten steel is far greater than that of the slag, the steel slag poured into the slag pot is separated and deposited, and the part (especially the bottom part of the pot) of the molten steel which is directly contacted with the cast iron slag pot after deposition and cooling is easy to weld together, so that the slag pot is stuck with steel, namely the slag pot is stuck with the steel.

The method for treating the slag ladle sticky steel comprises heavy hammer knocking, hook machine air pick knocking, a coal fire gun or oxygen cutting method and a comprehensive treatment method combined with the methods. The treatment of the slag tank bonded steel requires a crane, a hook machine, a coal fire gun, an oxygen pipe and the like, and simultaneously requires a large amount of manpower, so that the treatment cost is high; the treatment environment is severe, and the smoke dust and dust are large; the treatment process is dangerous and is easy to cause striking injury; when the coal fire gun or the oxygen cutting treatment method is used, the inner surface of the slag pot is easy to damage, the slag pot is easy to stick to the pot due to vicious circle caused by repeated use, and the slag pot is easy to cut and leak in the treatment process when the sticking is serious, even the slag pot is scrapped, so that the cost of the slag pot is greatly increased; the treatment period of the slag ladle sticking steel is long, the slag ladle investment is large, the operation and the scheduling of the slag ladle are difficult in the production process, and the normal operation of the production is influenced.

Slag ladle adhesion causes various problems of cost increase, poor safety conditions, difficult production organization and the like in steel making production, so if the slag ladle adhesion rate can be reduced, the slag ladle adhesion rate has great significance for the production organization of steel making. .

Disclosure of Invention

The invention aims to provide an anti-bonding control method for pre-placing waste and old residual bricks at the bottom of a steelmaking slag pot, which can effectively control bonding of the steelmaking slag pot and solve a series of problems caused by steel bonding of the slag pot.

In order to solve the technical problems, the invention adopts the following technical scheme:

an anti-adhesion control method for pre-placing waste and old bricks at the bottom of a steelmaking slag pot comprises the steps of pre-placing a certain amount of dry waste and old bricks at the bottom of the slag pot before the slag pot bears steel slag, and then bearing the steel slag.

Furthermore, about 2 tons of dried waste residues are placed at the bottom of the slag tank in advance by using a loader.

Furthermore, 1.5 to 2.5 tons of dried waste and old residual bricks are placed at the bottom of the slag pot in advance.

Furthermore, 2 tons of dried waste bricks are placed at the bottom of the slag pot in advance.

Furthermore, the filling height of the waste residual bricks is 300mm-350mm from the bottom to the top.

Further, the filling height of the waste residual bricks is 330mm from the bottom to the top.

Compared with the prior art, the invention has the beneficial technical effects that:

the invention effectively prevents the steel-making slag pot from sticking steel, prolongs the service life of the slag pot and reduces the maintenance cost of the slag pot; subsequent treatment procedures are reduced, and the labor intensity is reduced; improves the operation efficiency of the slag pot and provides a powerful guarantee for the smooth production of steelmaking.

Drawings

The invention is further illustrated in the following description with reference to the drawings.

FIG. 1 is a schematic view of a slag pot with waste and old bricks placed at the bottom in advance;

description of reference numerals: 1. a slag pot; 2. waste and old residual bricks.

Detailed Description

So that the manner in which the above recited aspects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings.

Aiming at a ladle casting residue tank, before the residue tank is replaced, a loader is used for placing about 2 tons of dried waste and old bricks 2 in advance at the bottom of the residue tank 1, then the ladle casting residue operation is carried out, and the residue tank bears steel slag.

Aiming at a converter slag pot, before converter slag pouring, a loader is used for placing about 2 tons of dried waste and old bricks in advance at the bottom of the slag pot (the filling height of the waste and old bricks is 330mm from the bottom to the top), then converter slag pouring is carried out, and the slag pot bears steel slag.

The waste residual bricks 2 are in direct contact with the hot steel slag, so that the hot steel slag is rapidly cooled, the molten steel deposition and corrosion of the slag pot 1 are effectively inhibited, and the steel sticking of the slag pot is effectively prevented. See fig. 1.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.