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Process method for replacing trunnion of ladle

A process method and trunnion technology, applied in the direction of manufacturing tools, metal processing, metal processing equipment, etc., can solve the problems of insignificant heating effect of the package body, freezing trunnions, inadvisability, etc.

Inactive Publication Date: 2011-03-30
LAIWU IRON & STEEL GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for the separation of ladle trunnions, since the inclusion body is relatively large, the effect of heating the inclusion body is not obvious, and the trunnion must be treated. Since the inclusion body cannot be heated, it is obviously not advisable to only freeze the trunnion

Method used

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  • Process method for replacing trunnion of ladle
  • Process method for replacing trunnion of ladle
  • Process method for replacing trunnion of ladle

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Embodiment Construction

[0024] The present invention is described in detail below in conjunction with accompanying drawing and specific embodiment:

[0025] A process for replacing the ladle trunnion, the structure diagram of the ladle is as follows figure 2 shown.

[0026] First, the trunnion 2 extends out of the steel ladle 1 for cutting off, and planes off the welding seam at the joint between the trunnion 2 and the steel ladle 1;

[0027] Then, the end face of the trunnion 2 is spaced at a certain distance to form a triangular shape and heated with an oxy-acetylene flame cutting torch to liquefy the metal at these three parts;

[0028] After the metal in the heated part is liquefied, use a high-pressure oxygen blowing pipe to blow oxygen at these three parts, and use the chemical reaction between iron and oxygen to blow out three holes 3 in these parts, such as figure 1 As shown, in this process, due to the rapid heating of the trunnion 2, the trunnion 2 expands rapidly, and the connecting hol...

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Abstract

The invention discloses a method for replacing a trunnion of a ladle, which comprises the following steps: cutting of part, which extends out of the ladle, of the trunnion of the ladle; planning the weld joint at the connected part of the trunnion and the ladle; heating the end face of the trunnion with acetylene flame to melt the end face of the trunnion; blowing oxygen to a molten point by using a high-pressure oxygen lance till a hole is blown; cooling the part of the trunnion and creating a gap between the trunnion and the ladle body; and striking the trunnion, and separating the trunnion from the ladle body. The invention provides a process method for separating the ladle body of the ladle from the trunnion conveniently and quickly, which is a more advanced clearance fit machine part maintenance and detachment technique and has a high utilization value in metallurgical machine industry.

Description

1: Technical field [0001] The invention discloses a process method for quickly removing a ladle trunnion, which belongs to the technical field of mechanical manufacturing and maintenance. Two: background technology [0002] For the iron and steel industry, ladles and molten iron tanks are commonly used and necessary equipment. These ladles can be seen in the various links of molten steel smelting, unloading, and pouring. The service life of ladles and molten iron tanks has an impact on the cost of iron and steel enterprises. At the same time, since ladles and iron tanks are used to hold molten steel and molten iron, the temperature is very high, which will bring great safety hazards to the surrounding environment during hoisting and unloading. Therefore, it is important to ensure the safety of ladles and molten iron tanks. The top priority of steel enterprises. [0003] After a certain period of use of steel ladles and iron cans, they must be thoroughly inspected to find sa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P6/00B23P11/00B22D41/00
Inventor 马利永朱永恒李建彩陈健
Owner LAIWU IRON & STEEL GRP
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