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A kind of refractory castable for molten pool part of garbage melting gasifier

A melting gasifier and refractory castable technology, applied in the field of refractory materials, can solve the problems of global environmental pollution, occupying space, endangering the living environment of humans, animals and plants, etc. High compressive effect

Active Publication Date: 2022-03-22
JIAOZUO JINXIN HENGTUO REFRACTORIES +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existence of garbage not only takes up a lot of space, but also causes serious pollution to the earth's environment, endangering the living environment of human beings, animals and plants

Method used

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  • A kind of refractory castable for molten pool part of garbage melting gasifier

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Effect test

Embodiment 1

[0023] A refractory castable for the molten pool of a garbage melting gasifier, comprising the following components in parts by weight: 69 parts of corundum (39 parts of sintered plate-shaped corundum with a particle size of 3-10 mm, 30 parts of fused white corundum with a particle size of 0-3mm), 14 parts of chromium trioxide (200 mesh), 3 parts of monoclinic zirconium (1000 mesh), 10 parts of aluminum chromium sol, 4 parts of pure calcium aluminate cement binder (Al 2 o 3 Content is 69.5wt%), 0.15 parts of sodium hexametaphosphate water reducer.

[0024] The preparation method of the aluminum chromium sol comprises: based on the content of the oxide, according to the content of the dichromium oxide in the aluminum chromium sol is 20wt%, the content of the aluminum oxide is 80wt%, and the nanometer aluminum oxide is added into 0.1mol / Cr(NO 3 ) 3 9H 2 O solution, the mixture was stirred at 25 °C for 0.5 h, then heated to 70 °C and added dropwise (NH 2 ) 2 ·H 2 0 and co...

Embodiment 2

[0026] A refractory castable for the molten pool of a garbage melting gasifier, comprising the following components in parts by weight: 65 parts of corundum (34 parts of sintered tabular corundum with a particle size of 3-10 mm, 31 parts of fused white corundum with a particle size of 0-3mm), 15 parts of chromium trioxide (200 mesh), 5 parts of monoclinic zirconium (1000 mesh), 12 parts of aluminum chromium sol, 3 parts of pure calcium aluminate cement binder (Al 2 o 3 Content is 79.5wt%), 0.12 parts of polycarboxylate water reducer FS10.

[0027] The preparation method of the aluminum chromium sol is the same as that of Example 1, except that the content of dichromium oxide in the aluminum chromium sol is 25wt%, and the content of aluminum oxide is 75wt%.

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Abstract

The invention belongs to the technical field of refractory materials, and discloses a refractory castable for the molten pool of a garbage melting gasifier, comprising the following components in parts by weight: 62-72 parts of corundum, 3-20 parts of trioxide Chromium, 2-6 parts of monoclinic zirconium, 8-16 parts of aluminum chromium sol, 2-5 parts of binder, 0.1-1.5 parts of water reducing agent; in terms of oxide content, the aluminum chromium sol The content of dichromium trioxide in the aluminum alloy is 20-30wt%, and the balance is aluminum oxide. The refractory castable has better corrosion resistance.

Description

technical field [0001] The invention belongs to the technical field of refractory materials, and in particular relates to a refractory castable for the molten pool part of a garbage melting gasifier. Background technique [0002] With the continuous increase of the world's population and the rapid development of the economy, the amount of urban garbage and industrial waste has increased dramatically. The existence of garbage not only takes up a lot of space, but also causes serious pollution to the earth's environment, endangering the living environment of human beings, animals and plants. Therefore, the treatment of urban garbage and industrial waste is an urgent problem to be solved. The development of waste incineration treatment technology makes the waste become recyclable on the basis of satisfying harmlessness. The main kilns for waste treatment include: fluidized bed incinerator, grate type incinerator, rotary incinerator, melting gasifier, etc., while the waste mel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66F23G5/44F23M5/00
CPCC04B35/66F23G5/44F23M5/00C04B2235/3217C04B2235/3241C04B2235/447C04B2235/77C04B2235/96C04B2235/9669C04B2235/3244F23M2900/05004
Inventor 李超陈煜徐才福杨巍巍张志华杨小林陈钢彭德江黄江文李强王小波薛鸿雁李华杜洋波
Owner JIAOZUO JINXIN HENGTUO REFRACTORIES
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