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Magnesium-calcium dry material and preparation method thereof

A dry material, magnesium-calcium technology, applied in the field of metallurgy, can solve problems such as pollution, free aldehydes, poor corrosion resistance, etc., achieve broad application prospects, low cost, and solve the effects of poor high temperature slag resistance

Inactive Publication Date: 2018-02-13
浙江攀盛冶金材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of magnesium-calcium dry-type material which can improve comprehensive metallurgical performance, save energy and reduce environmental pollution, and reduce environmental pollution. Preparation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A magnesia-calcium dry material, comprising the following raw materials in parts by weight: 50 parts of activated magnesia, 35 parts of waste magnesia-calcium brick aggregate, 12 parts of granular magnesia, 15 parts of composite binder, 10 parts of additive, zirconic acid 5 parts of salt and 0.5 part of sol.

[0036] The composite binder is made of the following raw materials in parts by weight: 15 parts of phenolic resin powder, 8 parts of nano europium modified resin, 5 parts of absolute ethanol, H 2 N-CH 2 -CH 2 -SO 3 3.5 parts of H and 0.4 parts of sodium decaborate.

[0037] The preparation steps of described nano-nickel modified resin are as follows:

[0038] 1) 25 parts by weight of europium chloride hexahydrate are dissolved in an ethanol solution to make a solution, and the concentration of europium ions in the solution is 0.15mol / L;

[0039] 2) Add 30 parts by weight of sodium hydroxide and 15 parts by weight of hydrazine hydrate to the solution obtained ...

Embodiment 2

[0049] A magnesia-calcium dry material, comprising the following raw materials in parts by weight: 45 parts of activated magnesia, 28 parts of waste magnesia-calcium brick aggregate, 6 parts of granular magnesia, 12 parts of composite binder, 8 parts of additives, zirconic acid 4 parts of salt and 0.4 parts of sol.

[0050] The composite binder is made of the following raw materials in parts by weight: 13 parts of phenolic resin powder, 6 parts of nano europium modified resin, 4 parts of absolute ethanol, H 2 N-CH 2 -CH 2 -SO 3 2.7 parts of H and 0.3 parts of sodium decaborate.

[0051] The preparation steps of described nano-nickel modified resin are as follows:

[0052] 1) 25 parts by weight of europium chloride hexahydrate are dissolved in an ethanol solution to make a solution, and the concentration of europium ions in the solution is 0.15mol / L;

[0053] 2) Add 30 parts by weight of sodium hydroxide and 15 parts by weight of hydrazine hydrate to the solution obtained ...

Embodiment 3

[0063] A magnesia-calcium dry material, comprising the following raw materials in parts by weight: 35 parts of activated magnesia, 25 parts of waste magnesia-calcium brick aggregate, 3 parts of granular magnesia, 10 parts of composite binder, 5 parts of additives, zirconic acid 3 parts of salt and 0.3 parts of sol.

[0064] The composite binder is made of the following raw materials by weight: 12 parts of phenolic resin powder, 5 parts of nano europium modified resin, 3 parts of absolute ethanol, H 2 N-CH 2 -CH 2 -SO 3 2 parts of H and 0.25 parts of sodium decaborate.

[0065] The preparation steps of described nano-nickel modified resin are as follows:

[0066] 1) 25 parts by weight of europium chloride hexahydrate are dissolved in an ethanol solution to make a solution, and the concentration of europium ions in the solution is 0.15mol / L;

[0067] 2) Add 30 parts by weight of sodium hydroxide and 15 parts by weight of hydrazine hydrate to the solution obtained in 1) and ...

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Abstract

The invention relates to a magnesium-calcium dry material, which comprises the following raw materials in parts by weight: 35-50 parts of active magnesium oxide, 25-35 parts of waste magnesium-calciumbrick aggregate, 3-12 parts of granular magnesium oxide, 10-15 parts of a compound bonding agent, 5-10 parts of an additive, 3-5 parts of zirconate and 0.3-0.5 parts of sol. The product and raw materials in the invention are safe and non-toxic, have no adverse effect on users and the environment, has high density, high heat conductivity, excellent thermal stability, thermal shock resistance, corrosion resistance, normal temperature mechanical property and high temperature mechanical property, and has an extremely wide application prospect in the field of metallurgical steel-making; and as modified resin is used as a bonding agent, no choking smoke or toxic and harmful gas is generated in a decomposition process. The magnesium-calcium dry material provided by the invention has the advantages of energy conservation, emission reduction, environmental protection, low cost and the like; meanwhile, the product solves the problems of poor normal temperature strength and poor high-temperatureslag resistance of dry materials.

Description

technical field [0001] The invention belongs to the field of metallurgy and relates to a magnesium-calcium dry material, in particular to a magnesium-calcium dry material which improves comprehensive metallurgical performance, saves energy and reduces environmental pollution, and a preparation method thereof. Background technique [0002] Dry vibrating material is a high-tech alkaline unshaped refractory material, which is an updated product for the working lining of the tundish. The material uses high-quality magnesia as the main raw material, plus binders and additives, and is processed through strict production process control. The main component of the dry vibrating material is MgO, which has a good effect on non-metallic inclusions in molten steel (such as Al 2 o 3 , SiO 2 etc.), has a strong adsorption effect, thereby purifying molten steel and improving the quality of molten steel. At present, traditional dry vibrating materials mostly use phenolic resin as a bind...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/043C04B35/622
CPCC04B35/043C04B35/62204C04B2235/3248C04B2235/3409C04B2235/77C04B2235/96C04B2235/9607C04B2235/9669
Inventor 江群英施永益张新财
Owner 浙江攀盛冶金材料有限公司
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