Square channel cooling type scrap steel burdening port and manufacturing method thereof

A cooling type, channel technology, used in the manufacture of converters, etc., can solve problems such as poor performance and short life

Pending Publication Date: 2021-04-20
TANGSHAN SANCHUAN STEEL MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned batching port is integrally cast, and the performance in all aspects is still relatively poor, and the service life is still short

Method used

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  • Square channel cooling type scrap steel burdening port and manufacturing method thereof
  • Square channel cooling type scrap steel burdening port and manufacturing method thereof
  • Square channel cooling type scrap steel burdening port and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Example 1 Square channel cooling type scrap batching port

[0046] This example Figure 1 to Figure 9As shown, it is a square channel cooling type scrap steel batching port, which includes a cylinder body 1, which is an inclined hollow cylindrical structure with upper and lower openings fixed on the vaporization cooling flue of the converter. In this embodiment, the cross section of the cylinder body 1 is circular, and the cylinder body 1 is arranged on the side wall of the vaporization cooling flue and communicates with the vaporization cooling flue. Since the cylinder body 1 is the channel through which steel scrap enters the converter, there are high requirements for the wear resistance and impact resistance of the cylinder body 1 .

[0047] Since the cylinder 1 is a hollow structure, the cylinder 1 has a cylinder wall. In order to improve the wear resistance and impact resistance of the cylinder 1, the cylinder wall is set into a multi-layer structure: as figure ...

Embodiment 2

[0056] Example 2 Square channel cooling type scrap batching port

[0057] The structure of this embodiment is basically the same as that of Embodiment 1, the difference lies in the arrangement of the cooling circulation channels 6 . Such as Figure 9 As shown (the direction of the arrow in the figure is the flow direction of the cooling liquid), the cooling circulation channels 6 in this embodiment are arranged in parallel. The cooling circulation passages 6 arranged in parallel include vertical passages 61 arranged along the height direction of the cylinder wall, and transverse passages 62 connecting the vertical passages 61 head to head and tail to tail. The water inlet 7 and the water outlet 8 are both Opened on the transverse passage 62. In order to make the cooling cycle more sufficient, the water inlet 7 and the water outlet 8 are arranged on the transverse channels 62 on opposite sides of the cylinder 1 . Wherein, the sidewalls of the vertical passages 61 on both sid...

Embodiment 3

[0058] Example 3 Method for making a square channel cooling type scrap steel batching port

[0059] This embodiment is a manufacturing method of a square channel cooling type scrap steel batching port, which is used to make the square channel cooling type scrap steel batching port in Embodiment 1 or Example 2. The manufacturing method of the square channel cooling type scrap steel batching port in the present embodiment comprises the following steps carried out successively:

[0060] Making the cavity: take the low-temperature cooling layer 4, enclose the cooling circulation channel 6 on the inner wall of the low-temperature cooling layer 4, take the temperature-resistant layer 2 and the lower sealing plate 5, and connect the temperature-resistant layer 2 and the low-temperature cooling layer through the lower sealing plate 5 4. The ends near the vaporization cooling flue are connected and sealed to form a cavity. At this time, a cooling circulation channel 6 is formed in the ...

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PUM

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Abstract

The invention discloses a square channel cooling type scrap steel burdening port, and belongs to the field of metallurgical equipment. The square channel cooling type scrap steel burdening port comprises a cylinder body, a cooling circulation channel is buried in the wall of the cylinder body, and the wall of the cylinder body comprises a temperature-resistant layer, an impact-resistant layer and a low-temperature cooling layer which are sequentially arranged from inside to outside. The invention further discloses a manufacturing method of the square channel cooling type scrap steel burdening port, the temperature-resistant layer and the low-temperature cooling layer are taken, the end of the temperature-resistant layer and the end of the low-temperature cooling layer are connected and sealed through a lower sealing plate to form a cavity, the cooling circulation channel is formed in the cavity, and an impact-resistant layer material is poured into the cavity, and after cooling, the wall of the cylinder body is formed, wherein the wall of the cylinder body is sequentially provided with the temperature-resistant layer, the impact-resistant layer and the low-temperature cooling layer from inside to outside. According to the square channel cooling type scrap steel burdening port, the cooling circulation pipeline is arranged to cool the batching port cylinder body, the thermal stress of the cylinder body is reduced, the thermal conductivity is reduced through a multi-layer structure, the service life of the cylinder body is prolonged, the materials are simple and easy to obtain, the cost is low, the production efficiency is improved, and the square channel cooling type scrap steel burdening port is suitable for adding all hard materials.

Description

technical field [0001] The invention belongs to the field of metallurgical equipment, and relates to a metallurgical equipment and a manufacturing method thereof, in particular to a square channel cooling type scrap steel batching port and a manufacturing method thereof. Background technique [0002] Converter steelmaking uses molten iron, scrap steel, and ferroalloy as the main raw materials. The steelmaking process is completed in the converter by the physical heat of the molten iron itself and the heat generated by the chemical reaction between the components of the molten iron without the aid of external energy. At present, in order to reduce the amount of molten iron and reduce costs, iron factories will increase the proportion of scrap steel. [0003] In order to add steel scrap more efficiently, in the related art, the steel scrap is added through the batching port at the vaporization cooling flue of the converter. The batching port is a tubular opening connected to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C5/46B22D19/02
Inventor 孟建龙刘洪波李自强李超高健彬翟智阳耿京安家宏
Owner TANGSHAN SANCHUAN STEEL MACHINERY MFG
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