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Baking-free hot-metal bottle lining brick

A technology for ladle iron tanks and lining bricks, which is applied in the field of refractory materials, can solve the problems of high repair labor intensity, complex production process, and short service life, and achieve the effects of simple and fast construction operations, excellent technical performance, and extended service life

Inactive Publication Date: 2010-02-03
张富财
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the problems of short service life, heavy repair labor intensity and complex production process, high energy consumption and environmental pollution caused by firing bricks in the existing lining bricks of molten iron tanks, and provides a non-burning lining brick of molten iron tanks

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A kind of unfired iron ladle lining brick, expressed by weight percentage, contains Al in the raw material formula 2 o 3 High alumina bauxite clinker with a content of not less than 85%, brown corundum, 2% mullite fine powder with a particle size 2 4% microsilica powder with a content of not less than 93%, and 0.15% sodium tripolyphosphate accounting for the weight of all ingredients; crush the above-mentioned high alumina bauxite clinker into 15-8mm, 8-5mm, 5-3mm, For 3-1mm, 1-0.074mm particles and <0.074mm fine powder, the amount of 15-8mm particles added is 12%, the amount of 8-5mm particles added is 9%, the amount of 5-3mm particles added is 11%, and the amount of 3- The addition amount of 1mm particles is 8%, the addition amount of 1-0.074mm particles is 6%, the addition amount of <0.074mm fine powder is 17%; the above-mentioned brown corundum is broken into 5-3mm, 3-1mm, 1-0mm particles, Among them, the amount of 5-3mm particles added is 4%, the amount of 3-1mm p...

Embodiment 2

[0018] A kind of unfired iron ladle lining brick, expressed by weight percentage, contains Al in the raw material formula 2 o 3 High alumina bauxite clinker with a content of not less than 85%, brown corundum, 2% mullite fine powder with particle size 2 The content is not less than 93% of silica powder 7%, and also contains 0.35% sodium tripolyphosphate accounting for the weight of all ingredients; the above-mentioned high alumina bauxite clinker is broken into 15-8mm, 8-5mm, 5-3mm, For 3-1mm, 1-0.074mm particles and <0.074mm fine powder, the addition amount of 15-8mm particles is 8%, the addition amount of 8-5mm particles is 13%, the addition amount of 5-3mm particles is 8%, and the addition amount of 3- The addition amount of 1mm particles is 8%, the addition amount of 1-0.074mm particles is 6%, the addition amount of <0.074mm fine powder is 20%; the above-mentioned brown corundum is broken into 5-3mm, 3-1mm, 1-0mm particles, Among them, the amount of 5-3mm particles added ...

Embodiment 3

[0021] A kind of non-fired iron ladle lining brick, expressed by weight percentage, contains Al in the raw material formula 2 o 3 High-alumina bauxite clinker with a content of not less than 85%, brown corundum, 7% mullite fine powder with a particle size 2 The content is not less than 93% of silica powder 3%, and also contains 0.20% sodium tripolyphosphate accounting for the weight of all ingredients; the above-mentioned high alumina bauxite clinker is broken into 15-8mm, 8-5mm, 5-3mm, 3-1mm, 1-0.074mm particles and <0.074mm fine powder, the addition of 15-8mm particles is 10%, the addition of 8-5mm particles is 9%, the addition of 5-3mm particles is 10%, 3- The addition amount of 1mm particles is 7%, the addition amount of 1-0.074mm particles is 4%, the addition amount of <0.074mm fine powder is 18%; the above-mentioned brown corundum is broken into 5-3mm, 3-1mm, 1-0mm particles, Among them, the amount of 5-3mm particles added is 3%, the amount of 3-1mm particles added is 4...

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PUM

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Abstract

The present invention relates to the fireproof material technology region, in particular to an escapable iron-baking water tank brick, which is to solve the problems in the existing iron-baking watertank brick that: the use period is short, the repair labor intension is larger, the technical is complex with high energy consumption and pollution and so on. The raw material prescription includes aluminium bauxite material, palm corundum, Morris stone powder, calcium aluminium cement and silicon powder; the aluminium bauxite material is grilled into the grain with the size of 15-8mm, 8-5mm, 5-3mm, 3-1mm and 1-0mm or the powder of the size less than 0.074mm; the palm corundum is grilled into the grain with the size of 5-3mm, 3-1mm and 1-0mm; the aluminium, Morris stone powder, calcium aluminium cement and silicon powder are put into a pre-mixing machine with the mixing for 10-20 minutes, and the water, the weight of which is 5-6.5 percent of the total weight; and the aluminium bauxite material and palm corundum grain are put into a mixing machine with the drying mixing for 2-3 minutes; after being mixed, the above materials are mixed evenly to be molded. The product is with much better eroding wearable, corroding wearable, anti-oxidation, anti-heat and vibrating in the actual application. The material has the advantages of simple and easy manufacturing method, low cost as well assaving energy and environment-protection.

Description

technical field [0001] The invention relates to the technical field of refractory materials, in particular to an unfired molten iron tank lining brick. Background technique [0002] In iron and steel complexes, molten iron at temperatures as high as 1300-1450°C smelted in blast furnaces is generally transported to steel plants in molten iron tanks. insulation performance. At present, a layer of lining made of refractory bricks must be added to the inner surface of the molten iron tank. During the transportation of molten iron, the inner lining of the tank will be eroded and worn by the impact of high-temperature molten iron, and the strong thermal shock will make it It produces great thermal stress, and is extremely vulnerable to chemical erosion of molten iron and iron slag and air oxidation; when the molten iron tank is emptied, the temperature inside the tank drops sharply, causing the inner lining to cool down rapidly, and the inner lining is subjected to such repeated ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66C04B7/32C04B14/30
Inventor 张富财赵增光
Owner 张富财
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