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Welding-free high temperature-resistant coating oxygen blowpipe

An oxygen blowing tube, high temperature resistance technology, applied in blast furnace, blast furnace details, blast furnace parts and other directions, to achieve the effect of reducing the number of tube changes, smooth surface, and significant economic benefits

Inactive Publication Date: 2010-08-11
柴立峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Brief description of the content of the welding-free high-temperature resistant coating oxygen blowing tube of the present invention:

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The welding-free high-temperature-resistant coating oxygen blowing pipe of the present invention is realized in this way. It is a kind of high-temperature-resistant coating on the inner and outer pipe walls of the oxygen blowing pipe. The welding-free high-temperature-resistant coating oxygen blowing tube connected by way of connection.

[0021] On the inner and outer tube walls of the oxygen blowing pipe, there is a high-temperature resistant coating, and the high-temperature resistant coating is an aluminum carbonaceous material. The raw materials for preparing the high-temperature resistant coating are: 85 parts of aluminum oxide, 15 parts of graphite powder, The binding agent adopts 30 parts of liquid sodium silicate liquid.

[0022] When coating the inner coating on the oxygen blowing pipe, the angle of more than 20 degrees is used to feed the oxygen blowing pipe obliquely. Evenly coated on the inner wall of the oxygen blowing tube, the thickness of the coating is...

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Abstract

The invention relates to a non-welding high temperature resistant coating oxygen blowpipe. It is characterized in that it is equipped with high temperature resistant coating inside and outside pipe wall of oxygen blowpipe, and connected together through fastening, thread fastening and socket, and the coating material is alumine carbonite material. The comprised raw material and their weight proportion are as follows: aluminium oxide 80- 85,carbon 15- 20, liquid sodium metasilicate and anchoring agent 10- 30. The invention reduces oxygen blowpipe damage, reduces pipe change times, releases corrosion of slag to furnance and labor strength of worker at high temperature, and greatly saves raw material. It takes alumine carbon material for thermal resistant coating material, and the coating layer is homogenous, no adhering slag on surface, no peel, water proof, corrosion resistant and long life length, so the economical benefit is outstanding.

Description

technical field [0001] The invention is an oxygen blowing pipe used for ironmaking, steelmaking and non-ferrous metal smelting in the metallurgical industry, and relates to a welding-free high-temperature-resistant coating oxygen blowing pipe. Background technique [0002] Oxygen blowing is required for steelmaking and non-ferrous metal smelting, and oxygen is needed to boil the channel for blast furnace tapping to make the molten iron flow smoothly. The oxygen delivery pipe used at this time is the oxygen blowing pipe. At present, the traditional oxygen blowing pipe is mostly coated with clay and brick powder, which has problems such as low refractoriness and high consumption. The main connection method is welding, which has potential safety hazards and increases production costs. Contents of the invention [0003] The invention overcomes the above-mentioned defects, and aims to provide a welding-free high-temperature-resistant coating oxygen blowing pipe for steelmaking,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21C5/00C21C7/072C21B7/12C22B9/05F27D3/16C04B35/18
CPCY02P10/20
Inventor 柴立峰
Owner 柴立峰