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Forsterite well block formula and preparation method thereof

The technology of olivine seat and forsterite is applied in the field of forsterite seat brick formulation and preparation, and can solve the problems such as the deterioration of the quality of the tundish seat brick, the easy infiltration of molten steel around the seat brick, the accident of steel penetration at the seat brick part, and the like. Achieve improved service life, low cost, reduced damage and speed

Pending Publication Date: 2020-04-03
泰州市旺鑫耐火材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]With the rapid development of aluminum smelting industry and refractory material industry in recent years, the market demand for bauxite clinker and magnesia has increased sharply, and the price of raw materials has shown a rising trend. The trend is that the production cost of the tundish block is also rising. Therefore, there are currently many tundish block products that cut corners in order to reduce costs, resulting in a decline in the quality of the tundish block, low high-temperature strength, and poor volume stability. Molten steel is easy to infiltrate around the seat brick, and the tundish seat brick is corroded prematurely, resulting in a steel penetration accident at the seat brick

Method used

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  • Forsterite well block formula and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A formula for a forsterite seat brick, comprising forsterite particles, magnesia-chrome synthetic powder, clay powder, graphite, an inorganic binder, and a liquid resin, the percentages by weight are as follows:

[0036] Forsterite Granules 65%

[0037] Magnesium chromium synthetic powder 20%

[0038] Clay powder 5%

[0039] Graphite 1%

[0040] Inorganic binder 5%

[0041] Liquid Resin 4%

[0042] Its preparation method is as follows:

[0043] S1, ingredients; mix forsterite particles, magnesium chromium synthetic powder, clay powder, and graphite according to weight percentage;

[0044] S2, mixing materials; add forsterite particles, inorganic binder, and liquid resin into a high-speed mixer for 10 minutes, then add magnesium-chromium synthetic powder, clay powder, and graphite and mix and mix for 15 minutes to obtain mud, and the temperature reaches Discharge after 30°C;

[0045] S3, trapped material; put the mud material at a constant temperature for 12 hours...

Embodiment 2

[0051] A formula for a forsterite seat brick, comprising forsterite particles, magnesia-chrome synthetic powder, clay powder, graphite, an inorganic binder, and a liquid resin, the percentages by weight are as follows:

[0052] Forsterite Granules 67%

[0053] Magnesium chromium synthetic powder 20%

[0054] Clay powder 5%

[0055] Graphite 1.5%

[0056] Inorganic binder 3%

[0057] Liquid resin 3.5%

[0058] Its preparation method is as follows:

[0059] S1, ingredients; mix forsterite particles, magnesium chromium synthetic powder, clay powder, and graphite according to weight percentage;

[0060] S2, mixing materials; add forsterite particles, inorganic binder, and liquid resin into a high-speed mixer for 15 minutes, then add magnesium-chromium synthetic powder, clay powder, and graphite and mix and mix for 15 minutes to obtain mud, and the temperature reaches Discharge after 40°C;

[0061] S3, trapped material; put the mud material at a constant temperature for 18 h...

Embodiment 3

[0067] A formula for a forsterite seat brick, comprising forsterite particles, magnesia-chrome synthetic powder, clay powder, graphite, an inorganic binder, and a liquid resin, the percentages by weight are as follows:

[0068] Forsterite Granules 70%

[0069] Magnesium chromium synthetic powder 19%

[0070] Clay powder 4%

[0071] Graphite 1%

[0072] Inorganic binder 3%

[0073] Liquid Resin 3%

[0074] Its preparation method is as follows:

[0075] S1, ingredients; mix forsterite particles, magnesium chromium synthetic powder, clay powder, and graphite according to weight percentage;

[0076] S2, mixing materials; add forsterite particles, inorganic binder, and liquid resin into a high-speed mixer for 20 minutes, then add magnesium-chromium synthetic powder, clay powder, and graphite and mix and mix for 15 minutes to obtain mud, and the temperature reaches Discharge after 60°C;

[0077] S3, trapped material; put the mud material at a constant temperature for 124 hour...

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Abstract

The invention discloses a forsterite well block formula and a preparation method thereof. The forsterite well block formula provided by the invention comprises the following components in percentage by weight; 65%-70% of forsterite particles; 25%-30% of magnesium-chromium synthetic powder; 4%-7% of clay powder; 1%-2% of graphite; 3%-5% of an inorganic binding agent; and 3%-4% of liquid resin. According to the preparation method, the continuous casting tundish well block manufactured by taking forsterite as a main raw material, the production cost is greatly reduced, and it is found through production detection that the indexes including the normal-temperature compressive strength, the high-temperature linear change rate and the compressive strength of the product reach or exceed the quality indexes of an existing tundish well block.

Description

technical field [0001] The invention belongs to the technical field of building bricks, and in particular relates to a formula of forsterite building bricks and a preparation method thereof. Background technique [0002] The original continuous casting tundish block is mostly high-alumina or aluminum-magnesium, and its production process is roughly divided into two types: one is to use various grades of bauxite clinker and magnesia as the main raw materials, add a small amount of graphite, and use Combination of water glass, etc., after mixing, high-pressure molding, and then baking to make finished products; the other is to use various grades of bauxite clinker and magnesia as the main raw materials, cement, micropowder, etc. The good mud is put into the mold to vibrate and form, after normal temperature curing, the mold is demoulded, and then baked to make the finished product. [0003] With the rapid development of the aluminum smelting industry and the refractory materi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66C04B35/20C04B35/622
CPCC04B35/66C04B35/20C04B35/622C04B2235/3241C04B2235/349C04B2235/425C04B2235/77C04B2235/96C04B2235/9623
Inventor 张美杰周九喜高桂航宋振亚钱晓飞姚梦柔
Owner 泰州市旺鑫耐火材料有限公司
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