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A new type of baking-free and repairable chute

A baking-free and chute-free technology, which is applied in the repairable chute and new-type baking-free field, can solve the problems of time-consuming and laborious replacement of the chute, irreparable use of the chute, and high production cost, so as to improve the working environment, save production costs, and reduce work intensity Effect

Active Publication Date: 2021-01-29
HENAN ZHONGYUAN GOLD SMELTERY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the silicon carbide chute designed and installed in this area of ​​the industry has poor erosion resistance and thermal shock resistance, and cannot be repaired and used after breakage, explosion and other damage. higher cost

Method used

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  • A new type of baking-free and repairable chute

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Comparison scheme
Effect test

Embodiment 1

[0021] A new type of baking-free and repairable chute, the chute is composed of a steel shell, a main body working layer and an inner surface coating layer, such as figure 1 As shown, the width L of the housing is 660mm, the height H is 400mm, and the thickness D1 is 12mm. The upper part of the main working layer is provided with a U-shaped channel. The width R of the top opening of the U-shaped channel is 280mm, and the height H2 is 250mm. An inner surface smear layer is provided in the channel, the inner surface smear layer is U-shaped, the thickness D2 of the inner surface smear layer is 10mm, and the height H1 is 150mm.

[0022] The device shell is welded and made of 12mm thick Q235B material. The main working layer is made of alumina (Al 2 o 3 ≧85%) 35wt%, fused corundum (Al 2 o 3 ≧99%) 40wt%, reinforcing agent 3wt%, plasticizer 5wt%, composite additive 10wt%, production water 7wt% and stir evenly for 1 hour, and the manual mold casting is completed. Among them, the ...

Embodiment 2

[0025] A novel baking-free and repairable chute, the refractory temperature of the chute is 1600°C. The chute is composed of a steel shell, a main working layer and an inner surface coating layer, such as figure 1 As shown, the width L of the housing is 660mm, the height H is 400mm, and the thickness D1 is 12mm. The upper part of the main working layer is provided with a U-shaped channel. The width R of the top opening of the U-shaped channel is 280mm, and the height H2 is 250mm. An inner surface smear layer is provided in the channel, the inner surface smear layer is U-shaped, the thickness D2 of the inner surface smear layer is 10mm, and the height H1 is 150mm.

[0026] The device shell is welded and made of 12mm thick Q235B material. The main working layer is made of alumina (Al 2 o 3 ≧85%) 30wt%, fused corundum (Al 2 o 3 ≧99%) 45wt%, reinforcing agent 1wt%, plasticizer 2wt%, composite additive 12wt%, production water 10wt% and stir evenly for 1.5 hours, and the artifi...

Embodiment 3

[0030] A novel baking-free and repairable chute, the refractory temperature of the chute is 1600°C. The chute is composed of a steel shell, a main working layer and an inner surface coating layer, such as figure 1 As shown, the width L of the housing is 660mm, the height H is 400mm, and the thickness D1 is 12mm. The upper part of the main working layer is provided with a U-shaped channel, the top opening width R of the U-shaped channel is 280mm, and the height H2 is 250mm. An inner surface smear layer is provided in the channel, the inner surface smear layer is U-shaped, the thickness D2 of the inner surface smear layer is 10mm, and the height H1 is 150mm.

[0031] The device shell is welded and made of 12mm thick Q235B material. The main working layer is made of alumina (Al 2 o 3 ≧85%) 45wt%, fused corundum (Al 2 o 3 ≧99%) 30wt%, reinforcing agent 2wt%, plasticizer 6wt%, composite additive 8wt%, production water 9wt%, stir evenly for 2 hours, and the manual mold casting ...

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Abstract

A novel baking-free and repairable chute belongs to the technical field of refractory materials. The chute is composed of a shell, a main working layer and an inner surface coating layer. The thickness of the shell is 6-13.5mm; the main working layer is made of alum 30-45wt% of soil, 30-45wt% of fused corundum, 1-3wt% of reinforcing agent, 2-6wt% of plasticizer, 5-12wt% of composite additive, 6-10wt% of water, mixed evenly, and molded; The surface coating layer consists of bauxite 40‑50wt%, fused corundum 10‑15wt%, pure calcium aluminate binder 6‑12wt%, gibbsite powder 15‑20wt%, composite additive 5‑8wt%, water 10‑20wt% % Stir evenly and spread.

Description

technical field [0001] The invention belongs to the field of castables, and in particular relates to a novel bake-free and repairable chute. Background technique [0002] The high-temperature metal liquid produced by pyrometallurgy of non-ferrous metals enters the next smelting process through the fixed chute device. The fixed chute device is composed of a steel shell and the chute body. The working temperature of the chute generally exceeds 1200°C. Since the discharge of high-temperature metal liquid generally adopts intermittent operation, in order to ensure smooth transportation, the whole chute should be baked and heated to above 500°C with a natural gas burner before use. After the operation is completed, in order to speed up the cleaning speed of the chute slag, it is generally cleaned by artificial drying to cool down and quench. [0003] At present, the silicon carbide chute designed and installed in this area of ​​the industry has poor erosion resistance and therma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/101F27D3/14
CPCC04B35/101C04B2235/3208C04B2235/3218C04B2235/3222C04B2235/3418C04B2235/349C04B2235/402C04B2235/428F27D3/14
Inventor 韩战旗彭国敏廖忠义郭引刚俎小凤王伯义梁高喜李军学许名湘韩玉明
Owner HENAN ZHONGYUAN GOLD SMELTERY