Ladle lining structure and slag preventing paint

A molten iron tank and anti-slagging technology, applied in the field of molten iron tanks and coatings, can solve the problems of waste materials, weak affinity of iron slag, waste of refractory materials, etc., and achieve the effects of prolonging the slag mixing time, reducing production costs and reducing labor.

Inactive Publication Date: 2007-01-03
郝功臣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the mouth of the molten iron tank is prone to slagging during use, with a thickness of 300-500mm, when the slagging of the entire tank mouth reaches more than 80%, the molten iron tank will not be able to operate normally, and slagging must be carried out. The bricks are bonded together, so the working lining will be removed together with the slag during the slag removal process, and the slag removal work is a frequently occurring process in the use of molten iron tanks. After the slag removal, a large amount of working lining materials are required to repair , which not only wastes materials, but also affects production, increases the labor intensity of workers and masters, and at the same time creates

Method used

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  • Ladle lining structure and slag preventing paint

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0031] Embodiment 1: See Figure 1, the structure of the new anti-slagging molten iron tank in the figure, from the inside to the outside is the working lining, the permanent lining castable layer, the tank wall, the lower part of the working lining is a masonry structure, and the upper part is castable The pouring molding structure is coated with an anti-slagging paint layer on the inner wall of the working lining; the depth of the pouring molding structure of the castable is 500-600 mm from the upper edge of the molten iron tank; the thickness of the anti-slagging paint layer is 3-20 mm, and the depth is 600-800 mm from the upper edge of the ladle.

Example Embodiment

[0032] Embodiment two: coating of the present invention consists of:

[0033] al 2 o 3 42%, Na 2 SiO 3 25%, phenolic resin 3%, amorphous carbon 15%, SiO 2 15%, after mixing, add 6% of the total weight of water, then pour the mixed paint into the gunning machine and seal it, and spray on the surface of the designated iron ladle.

Example Embodiment

[0034] Embodiment three: coating of the present invention consists of:

[0035] al 2 o 3 20%, Na 2 SiO 3 25%, phenolic resin 5%, amorphous carbon 25%, SiO 2 25%, pour the paint into the mixer after mixing, first dry stir for 1-5 minutes, then add 8% of the total weight of water, add water and then stir for 5-10 minutes; use mud board and shovel to spread the paint evenly Apply it on the wall of the package with a thickness of 1-2cm. The surface of the coating layer is smooth. It will dry naturally for about 48 hours after application, and then bake it. It can be used after baking.

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PUM

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Abstract

The present invention discloses one kind of new ladle lining structure and slag preventing paint. The slag preventing ladle structure includes from inside to outside the work lining layer, the permanent cast material lining layer, and the ladle wall. The work lining layer includes the lower laid structure and the upper cast structure, and has slag preventing coating on the inner wall. The slag preventing paint consists of Al2O3 20-42 wt%, Na2SiO3 15-25 wt%, phenolic resin 3-7 wt%, amorphous carbon 15-25 wt% and SiO2 15-25 wt%. The technological scheme of the present invention results in greatly prolonged service life of the ladle, low production cost and reduced environmental pollution.

Description

[0001] 1. Technical field: the present invention relates to a molten iron tank and a coating, in particular to a molten iron tank with a new lining structure and an anti-slagging coating. 2. Background technology: [0002] The molten iron tank is a special container for hot charging of molten iron in the blast furnace. Its main purpose is to hold the high-temperature molten iron in the blast furnace, send it to the ironmaking process by means of transportation, and return it to the blast furnace for repeated use. At present, the general masonry method of the molten iron tank is: the permanent lining of the molten iron tank is built with refractory bricks or general castables, and the working lining is built with clay bricks, high alumina bricks or aluminum silicon carbide carbon bricks as a whole. Since the mouth of the molten iron tank is prone to slagging during use, with a thickness of 300-500mm, when the slagging of the entire tank mouth reaches more than 80%, the molten ir...

Claims

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Application Information

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IPC IPC(8): C21C7/00B22D41/02C04B35/10C09D5/16
Inventor 郝功臣
Owner 郝功臣
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