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A kind of powder for preparing magnesium-silicon hard insulation board, magnesium-silicon hard insulation board and preparation method thereof

A thermal insulation board and hard technology, applied in the field of thermal insulation materials, can solve the problems of poor thermal insulation performance, low structural strength, poor thermal shock stability, etc., and achieve good waterproof and moisture-proof performance, good heat insulation performance, and low high-temperature shrinkage.

Active Publication Date: 2016-08-17
ZHENGZHOU JINYULONG REFRACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the insulation materials used as furnace lining mainly include fiberboard, calcium silicate board, magnesia carbon brick, etc. Although these materials can improve the service life of the furnace lining to a certain extent, most of them have low structural strength and poor thermal shock stability. , poor thermal insulation performance, can not meet the needs of the metallurgical industry for the high performance of the furnace lining

Method used

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  • A kind of powder for preparing magnesium-silicon hard insulation board, magnesium-silicon hard insulation board and preparation method thereof

Examples

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Effect test

Embodiment 1

[0033] The powder used to prepare the magnesium-silicon hard insulation board in this embodiment includes the following components in parts by weight: 40 parts of vermiculite powder, 12 parts of floating beads, 15 parts of clay powder, 10 parts of alumina powder, and 3 parts of silicon micropowder. 10 parts, expanded perlite 10 parts, aluminate cement 10 parts.

[0034] The specification of the vermiculite powder is 0.1-1.5mm; the specification of the floating beads is 20-40 mesh; the specification of the clay powder is ≥250 mesh; the specification of the alumina powder is ≥320 mesh; The specification is ≥1000 mesh; the specification of the expanded perlite is 0.1-1.0mm; the specification of the aluminate cement is CA80.

[0035] The magnesium-silicon hard insulation board of this embodiment is mainly made of the following raw materials in parts by weight: 40 parts of vermiculite powder, 12 parts of floating beads, 15 parts of clay powder, 10 parts of alumina powder, 3 parts o...

Embodiment 2

[0041] The powder used to prepare the magnesium-silicon hard insulation board in this embodiment includes the following components in parts by weight: 37 parts of vermiculite powder, 18 parts of floating beads, 12 parts of clay powder, 8 parts of alumina powder, and 4 parts of silicon micropowder. parts, expanded perlite 13 parts, aluminate cement 8 parts.

[0042] The specification of the vermiculite powder is 0.1-1.5mm; the specification of the floating beads is 20-40 mesh; the specification of the clay powder is ≥250 mesh; the specification of the alumina powder is ≥320 mesh; The specification is ≥1000 mesh; the specification of the expanded perlite is 0.1-1.0mm; the specification of the aluminate cement is CA80.

[0043] The magnesium-silicon hard insulation board of this embodiment is mainly made of the following raw materials in parts by weight: 37 parts of vermiculite powder, 18 parts of floating pearls, 12 parts of clay powder, 8 parts of alumina powder, 4 parts of sil...

Embodiment 3

[0049] The powder used to prepare the magnesium-silicon hard insulation board in this embodiment includes the following components in parts by weight: 42 parts of vermiculite powder, 20 parts of floating beads, 10 parts of clay powder, 5 parts of alumina powder, and 5 parts of silicon micropowder. 10 parts, expanded perlite 10 parts, aluminate cement 8 parts.

[0050] The specification of the vermiculite powder is 0.1-1.5mm; the specification of the floating beads is 20-40 mesh; the specification of the clay powder is ≥250 mesh; the specification of the alumina powder is ≥320 mesh; The specification is ≥1000 mesh; the specification of the expanded perlite is 0.1-1.0mm; the specification of the aluminate cement is CA80.

[0051] The magnesium-silicon hard insulation board of this embodiment is mainly made of the following raw materials in parts by weight: 42 parts of vermiculite powder, 20 parts of floating beads, 10 parts of clay powder, 5 parts of alumina powder, 5 parts of s...

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Abstract

The invention discloses powder for preparing a magnesium-silicon hard insulation board, the magnesium-silicon hard insulation board and a preparation method thereof. The powder comprises, by weight, 37-60 parts of vermiculite powder, 12-20 parts of floating beads, 10-15 parts of clay powder, 5-10 parts of alumina powder, 3-5 parts of silica powder, 10-15 parts of expanded perlite and 5-10 parts of aluminate cement. The prepared powder for preparing the magnesium-silicon hard insulation board is reasonable in formula; all components coordinate with each other synergistically; the powder is mixed with a binding agent, a waterproof agent and water to obtain the magnesium-silicon hard insulation board; and the magnesium-silicon hard insulation board has the advantages of high structural strength, low reheating linear change rate, excellent heat-conducting property and moisture resistance. The magnesium-silicon hard insulation board has stable physical performances under working conditions at a high temperature, is mainly applied in the technical fields such as metallurgy, building materials, furnace body insulation and fire-proof materials, and has very good application prospects.

Description

technical field [0001] The invention belongs to the technical field of thermal insulation materials, and in particular relates to a powder for preparing a magnesium-silicon hard thermal insulation board, and also relates to a magnesium-silicon hard thermal insulation board prepared by using the powder and a preparation method thereof. Background technique [0002] Furnace lining is the furnace wall of the furnace used to refine metals. Because it is often operated at high temperature, it is generally built with refractory materials. In the smelting process of extremely complex and intense physical and chemical reactions, the furnace lining not only bears the chemical erosion of high-temperature molten steel and slag, but also bears the scour of molten steel, slag, furnace gas, and the mechanical impact of scrap steel. Therefore, The metallurgical industry has relatively high requirements on the performance of furnace lining materials; and improving the service life of furnac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66
Inventor 崔明奎
Owner ZHENGZHOU JINYULONG REFRACTORY
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