Unlock instant, AI-driven research and patent intelligence for your innovation.

Aluminum magnesium carbon brick prepared by recycling chrome corundum bricks and preparation method thereof

A technology of alumina-magnesia-carbon bricks and chrome-corundum bricks, which is applied in the field of refractory materials, can solve problems such as unstable quality and high production costs of alumina-magnesia-carbon bricks, achieve stable product quality, improve slag erosion resistance and thermal shock performance, and reduce cost effect

Inactive Publication Date: 2019-10-22
云南濮耐昆钢高温材料有限公司
View PDF7 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] One of the objectives of the present invention is to propose a alumina-magnesia-carbon brick prepared by recycling chrome corundum bricks and its preparation method, which solves the technical problems of high production cost and unstable quality of alumina-magnesia-carbon bricks in the prior art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Aluminum magnesium carbon brick prepared by recycling chrome corundum bricks and preparation method thereof
  • Aluminum magnesium carbon brick prepared by recycling chrome corundum bricks and preparation method thereof
  • Aluminum magnesium carbon brick prepared by recycling chrome corundum bricks and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] The alumina-magnesia-carbon brick of the present embodiment comprises the following raw materials in mass percent:

[0063]

[0064] The preparation method of the alumina-magnesia-carbon brick of the present embodiment may further comprise the steps:

[0065] (1) batching, prepare each raw material according to above-mentioned mass percentage.

[0066] (2) Mixing, accurately measure the components of the body and the complex according to the proposed formula, put them into the high-speed mixer respectively, and mix evenly. The specific steps are as follows:

[0067] 1) Before mixing, check whether the scraper and the grinding bottom are cleaned up, and then start mixing after everything is qualified, and start the high-speed mixer;

[0068] 2) Pour the pellets into the mixer, adjust the high-speed mixer to low speed, and dry mix for 90 seconds;

[0069] 3) Add the weighed phenolic resin slowly and evenly, and add the phenolic resin in two times. This time, add 4 / 5 of...

Embodiment 2

[0078] The alumina-magnesia-carbon brick of the present embodiment comprises the following raw materials in mass percent:

[0079]

[0080] The preparation method of the alumina-magnesia-carbon brick of the present embodiment may further comprise the steps:

[0081] (1) batching, prepare each raw material according to above-mentioned mass percentage.

[0082] (2) Mixing, accurately measure the components of the body and the complex according to the proposed formula, put them into the high-speed mixer respectively, and mix evenly. The specific steps are as follows:

[0083] 1) Before mixing, check whether the scraper and the grinding bottom are cleaned up, and then start mixing after everything is qualified, and start the high-speed mixer;

[0084] 2) Pour the pellets into the mixer, adjust the high-speed mixer to low speed, and dry mix for 90 seconds;

[0085] 3) Add the weighed phenolic resin slowly and evenly, and add the phenolic resin in two times. This time, add 4 / 5 ...

Embodiment 3

[0094] The alumina-magnesia-carbon brick of the present embodiment comprises the following raw materials in mass percent:

[0095]

[0096] The preparation method of the alumina-magnesia-carbon brick of the present embodiment may further comprise the steps:

[0097] (1) batching, prepare each raw material according to above-mentioned mass percentage.

[0098] (2) Mixing, accurately measure the components of the body and the complex according to the proposed formula, put them into the high-speed mixer respectively, and mix evenly. The specific steps are as follows:

[0099] 1) Before mixing, check whether the scraper and the grinding bottom are cleaned up, and then start mixing after everything is qualified, and start the high-speed mixer;

[0100] 2) Pour the pellets into the mixer, adjust the high-speed mixer to low speed, and dry mix for 90 seconds;

[0101] 3) Add the weighed phenolic resin slowly and evenly, and add the phenolic resin in two times. This time, add 4 / 5 ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
densityaaaaaaaaaa
Login to View More

Abstract

The invention discloses an aluminum magnesium carbon brick prepared by recycling chrome corundum bricks and a preparation method thereof, relates to the technical field of refractory materials, and solves the problems of high production cost and unstable quality of aluminum magnesium carbon bricks in the prior art. The method comprises the following steps: (1) proportioning 15-20% of recovered 5-3mm chrome corundum, 25-35% of recovered 3-1 mm chrome corundum, 10-15% of recovered 1-0 mm chrome corundum, 8-12% of 1-0 mm 97.5 fused magnesia, 20-25% of 95 brown fused alumina powder, 7-10% of graphite, and 2.8-3.0% of added phenolic resin; (2) mixing, namely, putting the raw materials into a high-speed mixer respectively, and mixing uniformly; (3) ageing the material, namely, ageing the uniformly mixed material for not less than 12 hours; (4) forming, namely punching the aged mud material on an electric screw press for a plurality of times to form a brick blank; (5) drying, namely drying the formed brick blank for 24 hours at 180-220 DEG C in a countercurrent tunnel dryer or an electric heating tunnel dryer to obtain the product aluminum magnesium carbon brick. The aluminum magnesium carbon brick prepared by the method has low cost and stable performance.

Description

technical field [0001] The invention relates to the technical field of refractory materials, in particular to an alumina-magnesia-carbon brick prepared by using recycled chromium corundum bricks and a preparation method thereof. Background technique [0002] Alumina-magnesia-carbon bricks are mainly used in the melting pool and bottom of the refining ladle. They have the advantages of anti-corrosion, anti-stripping, balanced erosion, safe use, less slag and steel, and easy unpacking. [0003] At present, the main raw materials in alumina-magnesia-carbon bricks are high alumina bauxite or corundum sand and magnesia. However, with the rise in the price of high-alumina raw materials and the decline in the grade of raw materials, the price of the current high-grade alumina-magnesia-carbon bricks continues to rise, but the quality has not been improved accordingly, and there may even be a decline, and the product quality fluctuates greatly. [0004] For this reason, improving th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/101
CPCC04B35/101C04B2235/3206C04B2235/425C04B2235/77C04B2235/96C04B2235/9607
Inventor 唐兵于宝童鲁志燕陈勇张向前
Owner 云南濮耐昆钢高温材料有限公司