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Protective device for external connecting pipe of converter and manufacturing method of protective device

A technology of protective devices and external pipes, which is applied in the direction of furnaces, furnace components, and manufacturing converters, can solve problems such as pipe bursts, achieve good safety, reduce the probability of bursts, and increase the degree of risk resistance.

Pending Publication Date: 2022-01-04
SHAANXI LONGMEN IRON & STEEL
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a protective device for the external connection pipe of the converter and its manufacturing method, so as to solve the problem that the external connection pipe of the converter is prone to pipe burst in the prior art

Method used

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  • Protective device for external connecting pipe of converter and manufacturing method of protective device
  • Protective device for external connecting pipe of converter and manufacturing method of protective device

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Experimental program
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Effect test

Embodiment

[0024] Replace the metal hose used in the converter external pipe 1 of the original waste heat boiler with a high-pressure boiler tube, the size of the high-pressure boiler pipe is φ50×10, and make a square protective steel pipe 2 outside the converter external pipe 1 using Q345 steel plate, Use Q345 steel plate to make a square protective steel pipe 2 with unclosed ends. The length×width×height of the protective steel pipe 2 is 1500×55×55, and the diameter of the protective steel pipe 2 is 5mm larger than the diameter of the converter external pipe 1. The outer part of the protective steel pipe 2 is made of claw-shaped anchors with a diameter of 6 mm rebar. The overall height of the anchors is 100 mm and the width is 120 mm. Wooden templates are used to support the anchors around the anchors, so that the refractory materials can be effectively fastened to the anchors. On the other hand, the thickness of the refractory should not be less than 80mm. Pour refractory mud inside i...

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Abstract

The invention discloses a protective device for an external connecting pipe of a converter and a manufacturing method of the protective device. The protective device comprises the external connecting pipe of the converter made of a high-pressure boiler pipe, a protective steel pipe is arranged on the outer side of the external connecting pipe of the converter in a surrounding mode, the protective steel pipe is a square pipe with the two ends open, an anchoring frame is arranged on the outer side of the protective pipe, the anchoring frame comprises multiple sets of claw-shaped anchoring parts which are evenly arranged, the anchoring parts are filled with refractory materials to form a heat insulation layer, each group of anchoring parts comprises a vertical anchor rod perpendicular to the protective steel pipe, the bottom end of the vertical anchor rod is fixed on the outer side of the protective steel pipe, and an inclined anchor rod is connected to each of two sides of the bottom end of the vertical anchor rod. The problem that in the prior art, the external connecting pipe of the converter is prone to pipeline burst is solved.

Description

technical field [0001] The invention belongs to the technical field of protection for an external connection pipe of a converter, and in particular relates to a protection device for an external connection pipe of a converter and a manufacturing method thereof. Background technique [0002] The sewage pipes and water inlet and outlet pipes of converter steelmaking waste heat boilers are usually metal hoses, and are directly exposed in the high temperature area of ​​the converter. During the converter smelting process, they are baked by the flame brought by the blowing period, resulting in water flow in the metal hose. This will cause the local pressure inside the hose to increase, causing the pipe to burst. The failure of this production equipment directly led to the shutdown of the converter, and the water flow inside the pipeline entered the converter to induce a water ingress accident in the furnace, causing an explosion, and the replacement of this equipment increased th...

Claims

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Application Information

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IPC IPC(8): C21C5/46F27D17/00
CPCC21C5/46F27D17/004F27D2017/006Y02P10/25
Inventor 贺增平李健孙浪波高浪李鹏卜阳刘国强樊胜午
Owner SHAANXI LONGMEN IRON & STEEL
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