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Intermediate-frequency electric furnace liner patching material and method of use thereof

A furnace lining repairing and intermediate frequency electric furnace technology, which is applied in the field of intermediate frequency electric furnace lining repairing materials, can solve problems such as undiscovered literature reports, and achieve the effects of saving furnace lining materials, electric energy and masonry costs, prolonging the life of the furnace lining and prolonging the service life.

Inactive Publication Date: 2009-08-19
ZIBO ZHUYOU FIREPROOF FURNACE MATERIAL
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  • Abstract
  • Description
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Problems solved by technology

[0004] After searching, do not find the bibliographical information identical with the material of the present invention

Method used

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Examples

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Embodiment

[0014] 1) Proportion table of repairing materials (unit: parts by weight)

[0015] Example 1 Example 2 Example 3 waste glass powder 1 5 7 Fused quartz 55 34 25 Fused quartz powder 15 30 35 Chromium Oxide Micropowder 17.5 20 27.5 Zirconia powder 10 10 5 boric anhydride 1.5 1 0.5

[0016] 2) Configuration of repairing materials: take various raw materials for implementation 1, 2 or 3, and dry mix them evenly.

[0017] 3) How to use the repair material: In the intermediate frequency furnace, at a temperature of 1000-1200°C, use a conventional spray gun to spray on the furnace wall to repair the furnace lining.

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Abstract

The invention provides a patching material for intermediate frequency electric furnace lining and a use method thereof. The invention is characterized in that the patching material is prepared by mixing the following raw materials according to percentage by weight: 1%-7% of waste glass powder, 25%-55% of electroquartz, 15%-35% of electroquartz micro powder, 17.5%-27.5% of chromic oxide micro powder, 5%-10% of zirconium oxide micro powder, and 0.5%-1.5% of boric anhydride. The use method is spraying on the furnace wall with a conventional spray gun at a temperature between 1000 DEG C and 1200 DEG C in the furnace to patch the furnace lining. The material of the invention can realize fast spraying and fast sintering, and can extensively prolong the service life of the furnace lining.

Description

technical field [0001] The invention belongs to the technical field of lining materials for intermediate frequency electric furnaces, and in particular relates to a lining repair material for intermediate frequency electric furnaces and a method for using the same. The repair material of the invention is applied to gunning repairs for long furnace age intermediate frequency electric furnace linings and molten iron (molten steel) ladles. Background technique [0002] At present, foundry enterprises at home and abroad generally use intermediate frequency induction furnaces or adopt cupola-electric furnace dual process to melt scrap steel and pig iron for casting production. The lining of the intermediate frequency furnace is generally built with quartz sand plus boric acid or boric anhydride as a binder, and a strict heating and sintering system is adopted. For example: "A New Type of Intermediate Frequency Furnace Lining" (Mei Shijie "Industrial Heating" No. 6, 1999), "Discus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66
Inventor 王锋
Owner ZIBO ZHUYOU FIREPROOF FURNACE MATERIAL
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