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A cooling wall and its processing method

A processing method and stave technology, applied in cooling devices, metal processing equipment, manufacturing tools, etc., can solve problems such as rising production costs, and achieve the effects of accelerated complete melting, good protection, and good cooling effect

Active Publication Date: 2018-12-04
MAANSHAN RUNTONG HEAVY IND TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This application makes the cooling water pipe and the cast steel stave body seamlessly fused together, and the pipe wall of the cooling water pipe will not melt through under the high-temperature ladle melting, but this application needs to be equipped with special high-temperature-resistant fillers, resulting in production costs The industry still hopes to have a more optimized solution to solve the problem of melting of cooling water pipes

Method used

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  • A cooling wall and its processing method
  • A cooling wall and its processing method
  • A cooling wall and its processing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A kind of stave processing method of the present embodiment, comprises the following steps:

[0043] Step 1. Manufacturing and testing of stave wooden molds: making stave wooden molds according to the structural shape of stave body 1, and testing the shape and dimension accuracy of the stave wooden molds, and selecting qualified products to enter the next process; 1 is structured as Figure 4 shown, press Figure 4In terms of the middle position, the bottom surface of the stave body 1 bottom is the inner working surface, and the inner side surface of the stave body 1 is provided with a brick-embedded groove 101 for inlaying refractory bricks; The overall length and width of the inner side of the brick-embedded groove 101 is 1.6% larger than that of the stave body 1, and the overall length and width of the outer side of the wooden formwork of the stave away from the brick-embedded groove 101 is 2.1% larger than that of the stave body 1. The pre-expansion design of the ...

Embodiment 2

[0060] A kind of processing method of stave of the present embodiment is basically the same as embodiment 1, and difference is:

[0061] In step 1 of the present embodiment, the stave wood formwork is provided with the length and width of the inner side of the brick-embedded groove 101. The overall size is 1.8% larger than the stave body 1, and the length and width of the outer side of the stave wood formwork away from the brick-embedded groove 101 are overall. The dimensions are all 2.2% larger than the stave body 1 .

[0062] In the present embodiment, the thickness H1 of the cold iron 111 is 2 / 3 of the wall thickness H2 of the cooling water pipe, and the monolithic length of the cuboid-shaped cold iron 111 is 5 cm, and the width is 5 cm. The total length L1 of the cold iron 111 at the bottom of the cooling water pipe is The extension length of the cooling water pipe is 1 / 35 of L2, and the cold iron 111 at the lower part of the cooling water pipe is installed obliquely, and ...

Embodiment 3

[0066] A kind of processing method of stave of the present embodiment is basically the same as embodiment 1, and difference is:

[0067] In step 1 of the present embodiment, the length and width of the inner side of the stave wood formwork provided with the brick-embedded groove 101 are all 1.7% larger than the stave body 1, and the length and width of the outer side of the stave wood formwork away from the brick-embedded groove 101 are overall The dimensions are all 2.2% larger than the stave body 1 .

[0068]In the present embodiment, the monolithic cold iron 111 of rectangular parallelepiped sheet has a length of 5.5 cm and a width of 4.5 cm. The total length L1 of the cold iron 111 at the bottom of the cooling water pipe is 1 / 30 of the extended length L2 of the cooling water pipe. 111 is installed obliquely, and the angle α between it and the horizontal plane is 8°.

[0069] In Step 3 of this embodiment, the molten steel is cooled for 4 minutes before casting, and the cas...

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Abstract

The invention discloses a cooling stave and a machining method thereof, and belongs to the field of cooling staves. The machining method includes the following steps of 1, production of a wood pattern of the cooling stave; 2, production of a sand mould and distribution of a cooling water pipe, specifically, putting the wood pattern of the cooling stave into a sand box, compacting the pattern of the sand mould, taking the wood pattern of the cooling stave out to form a cavity, and distributing the cooling water pipe in the cavity; the cooling water pipe comprises a first cooling water pipe, a second cooling water pipe and a third cooling water pipe; 3, injecting liquid steel into the cavity and starting casting; and 4, conducting cooling and forming after casting. According to the cooling stave and the machining method thereof, the defect that a cooling stave is prone to happening melt-through of cooling water pipes is overcome, by laying multiple layers of cooling water pipes in the cooling stave, the cooling effect is improved, and by strictly controlling the machining process, melt-through of the cooling water pipes can be effectively prevented so as to achieve the technical effects of fused while not molten and seamless fusion.

Description

technical field [0001] The invention relates to the technical field of staves, and more specifically, relates to a stave and a processing method thereof. Background technique [0002] A large number of staves are used in iron-making blast furnaces. Compared with the currently widely used ductile iron staves, cast steel staves as a new generation of blast furnace staves have high elongation, high tensile strength, high melting point, and thermal shock resistance. Good performance and good overall thermal conductivity. The material of the cast iron stave base and the cooling water pipe is very different. Due to the limitation of the base material and casting process, there is an air gap of 0.1-0.3 mm between the base and the cooling water pipe, resulting in an increase in thermal resistance. However, the cast steel stave matrix and the cooling water pipe are made of the same or similar material. The special casting technology makes the outer wall of the cooling water pipe and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21B7/10B22C9/24B22C9/02B22D27/04
CPCB22C9/02B22C9/24B22D27/04C21B7/10
Inventor 朱童斌李以则庆辉李振东
Owner MAANSHAN RUNTONG HEAVY IND TECH CO LTD
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