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Anti-sticking slag gunning material for hot-metal bottle

A gunning material and anti-sticking slag technology, which is applied in the field of iron and steel metallurgy refractory materials, can solve the problems of high processing cost of carbon-containing refractory materials, increased maintenance costs of molten iron tanks, and increased number of gunning repairs, so as to reduce the cost of gunning repairs , improve service life and reduce waste

Active Publication Date: 2016-01-13
WUGANG REFRACTORY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, carbon is added to the common gunning repair materials on the market to improve the anti-slag performance of the product, but this type of gunning repair materials consumes a large amount, has low strength and high overall cost
[0004] The Chinese invention patent application with the publication number CN200710051983.1 discloses an anti-slag spray coating for desulfurized iron ladles. The anti-slag spray coating uses a large amount of carbon-containing refractory recycled materials to improve the anti-slag performance of the repair material. However, the carbon-containing refractory has high processing cost, and the carbon content is too high, resulting in difficult sintering, low sintering strength, increased number of gunning repairs, and increased maintenance cost of the molten iron tank

Method used

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  • Anti-sticking slag gunning material for hot-metal bottle
  • Anti-sticking slag gunning material for hot-metal bottle
  • Anti-sticking slag gunning material for hot-metal bottle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Prepare 100Kg iron ladle anti-sticking slag gunning material, the raw materials and weight percentages thereof are as follows:

[0025] Main material: 0.088mm<grain size D<6mm carbon-containing refractory waste brick B-grade material 65Kg

[0026] 0.088mm<grain size D<6mm waste high alumina brick 10Kg

[0027] Particle size D≤0.088mm waste high alumina brick 16Kg

[0028] Accessories: Guangxi white clay 8Kg

[0029] Sodium carboxymethyl cellulose 0.9Kg

[0030] Sodium tripolyphosphate 0.1Kg.

[0031] Accurately weigh the above-mentioned raw materials, pour them into a mixer, mix them evenly, pack them in bags after discharge, conduct random inspection, and put them into storage to obtain the required anti-sticking slag gunning material for molten iron tanks.

Embodiment 2

[0033] Prepare 100Kg iron ladle anti-sticking slag gunning material, the raw materials and weight percentages thereof are as follows:

[0034] Main material: 0.088mm

[0035] 0.088mm

[0036] Granularity D≤0.088mm waste high alumina brick 35Kg

[0037] Accessories: Guangxi white clay 3Kg

[0038] Sodium Carboxymethyl Cellulose 1.5Kg

[0039] Sodium tripolyphosphate 0.5Kg.

[0040] Accurately weigh the above-mentioned raw materials, pour them into a mixer, mix them evenly, pack them in bags after discharge, conduct random inspection, and put them into storage to obtain the required anti-sticking slag gunning material for molten iron tanks.

Embodiment 3

[0042] Prepare 100Kg iron ladle anti-sticking slag gunning material, the raw materials adopted and their weight percentages are as follows:

[0043] Main material: 0.088mm

[0044] 0.088mm

[0045] Particle size D≤0.088mm waste high alumina brick 15Kg

[0046] Accessories: Guangxi white mud 5Kg

[0047] Sodium carboxymethyl cellulose 0.1Kg

[0048] Sodium tripolyphosphate 0.9Kg.

[0049] Accurately weigh the above-mentioned raw materials, pour them into a mixer, mix them evenly, pack them in bags after discharge, conduct random inspection, and put them into storage to obtain the required anti-sticking slag gunning material for molten iron tanks.

[0050] Specifically, in a 150-ton molten iron tank where the slag line and the edge of the tank are prone to slagging, an industrial comparative experiment was carried out using the gunning material of t...

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Abstract

The invention discloses an anti-sticking slag gunning material for a hot-metal bottle. The anti-sticking slag gunning material comprises the following components in percentages by weight: 35wt% to 65wt% of carbonic fire-retardant waste brick B-level material, 25wt% to 60wt% of waste high-alumina brick material, 3wt% to 8wt% of Guangxi white mud, 0.1wt% to 2wt% of sodium carboxymethylcellulose and 0.1wt% to 2wt% of sodium tripolyphosphate. The preparation process of the anti-sticking slag gunning material for the hot-metal bottle disclosed by the invention is simple, anti-sticking slag treatment construction can be carried out under cold and hot conditions of equipment, and the material can be used immediately after the construction is finished. The anti-sticking slag gunning material has the characteristics of simple construction, excellent anti-sticking slag performance, high sintering strength, low cost and the like, and is significant in economic benefit and social benefit.

Description

technical field [0001] The invention relates to the technical field of refractory materials for iron and steel metallurgy, in particular to an anti-sticking slag gunning material for molten iron tanks. Background technique [0002] In the iron and steel metallurgy industry, the hot metal tank is an important equipment for collecting and transporting molten iron in the blast furnace and adding iron in the steel plant, and has a long service life. However, in the process of use, slag and iron slag are easily formed on the slag line of the molten iron tank and along the tank edge, and gradually thicken, which seriously affects the production efficiency and production safety of iron and steel enterprises, and slag cleaning must be carried out. However, the slag cleaning process seriously damaged the refractory material along the slag line and the tank, which not only affected the normal turnover of the molten iron tank, but also reduced its service life. Therefore, it is necess...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66
Inventor 徐志华刘锋田先明秦常杰
Owner WUGANG REFRACTORY CO LTD
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