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Cast iron ladle building process

A technology for ladle and molten iron, which is applied in the field of ladle building technology of cast iron ladle, can solve the problems of short service life, short service life of lining, and smaller volume of molten iron, so as to improve the service life, solve the problem of molten iron leakage and frequent ladle leakage. The effect of sexual harassment

Inactive Publication Date: 2019-12-27
ANHUI POLYTECHNIC UNIV MECHANICAL & ELECTRICAL COLLEGE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, the ladle widely used in my country's cast iron production industry is mainly composed of a shell and an inner lining. The shell is made of 10mm thick steel plate. A layer of high-alumina bricks is built on the inside of the shell, and then a layer of refractory mud is applied. Coated with a layer of graphite paint, the lining has a short service life, generally 30-35 furnaces
The main reasons for the short service life are: first, due to local burn-through, the phenomenon of ladle leakage occurs; second, as the number of taps increases, a large amount of slag iron sticks to the bottom of the ladle, and the slag gradually melts to form impurities, which are poured into the cavity with molten iron
A large amount of iron slag sticks to the bottom of the ladle, and the volume of the molten iron ladle becomes smaller, resulting in the scrapping of the ladle

Method used

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  • Cast iron ladle building process
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  • Cast iron ladle building process

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Experimental program
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Embodiment 1

[0052] In this embodiment, in step S2, the chemical composition mass percentage of the refractory castable material is: Al 2 o 3 59%, SiO 2 30%, SiC 9%, Cr 2 o 3 1%, CaO 1%. The physical properties of the castable refractory material are shown in Table 3.

[0053] table 3

[0054]

Embodiment 2

[0056] In this embodiment, in step S2, the chemical composition mass percentage of the refractory castable material is: Al 2 o 3 59%, SiO 2 26%, SiC 13%, Cr 2 o 3 1%, CaO 1%. The physical properties of the castable refractory material are shown in Table 4.

[0057] Table 4

[0058]

Embodiment 3

[0060] In this embodiment, in step S2, the chemical composition mass percentage of the refractory castable material is: Al2 o 3 65%, SiO 2 25%, SiC 10%. The physical properties of the castable refractory material are shown in Table 5.

[0061] table 5

[0062]

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Abstract

The invention discloses a ladle building process for a cast iron ladle. The ladle building process comprises the steps that S1, manufacturing an inner mold; S2, manufacturing a refractory casting material; S3, pouring the ladle bottom of the ladle body by means of a refractory pouring material ; S4, loading the inner mold into a ladle body, then pouring the ladle wall of the ladle body by using the refractory pouring material, wherein a lining is formed on the ladle wall and the ladle bottom; S5, demolding the manufactured ladle; s6, baking the manufactured ladle. According to the ladle building process for the cast iron ladle, the service life of the ladle can be prolonged.

Description

technical field [0001] The invention belongs to the technical field of molten iron ladles, in particular, the invention relates to a ladle construction process of cast iron molten iron ladles. Background technique [0002] At present, the ladle widely used in my country's cast iron production industry is mainly composed of a shell and an inner lining. The shell is made of 10mm thick steel plate. A layer of high-alumina bricks is built on the inside of the shell, and then a layer of refractory mud is applied. Coated with a layer of graphite paint, the lining has a short service life, generally 30-35 furnaces. The main reasons for the short service life are: first, due to local burn-through, the phenomenon of ladle leakage occurs; second, as the number of taps increases, a large amount of slag iron sticks to the bottom of the ladle, and the slag gradually melts to form impurities, which are poured into the cavity with molten iron . A large amount of slag iron sticks to the bo...

Claims

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Application Information

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IPC IPC(8): C04B35/66
CPCC04B35/66
Inventor 柴知章王宜飞朱香全张星照
Owner ANHUI POLYTECHNIC UNIV MECHANICAL & ELECTRICAL COLLEGE
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