Lightweight insulation spray paint for circulating fluidized bed boiler, and production and construction technology thereof

A circulating fluidized bed, lightweight thermal insulation technology, applied in the field of refractory materials, can solve the problems of long construction period and many labor, and achieve the advantages of shortened construction period, reduced construction cost, good thermal shock resistance and thermal insulation performance. Effect

Inactive Publication Date: 2016-05-04
SHANDONG YAOHUA REFRACTORY MATERIAL SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Under the existing conditions and technologies, for the horizontal flue, cyclone separator, tail flue and other parts of the circulating fluidized bed boiler, the heat insulation material needs to have good heat insulation performance, have a certain strength, be able to withstand high temperatures of 1000°C, and have good heat resistance seismic performance, but the current pouring construction of heat-insulating refractory concrete needs to support the membrane, which requires a long construction period and a lot of labor

Method used

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  • Lightweight insulation spray paint for circulating fluidized bed boiler, and production and construction technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The invention provides a light-weight heat-insulating spray coating for a circulating fluidized bed boiler. The components contained and the parts by mass are as follows:

[0047] 20 parts of waste light insulation brick particles;

[0048] 15 parts of light raw material A;

[0049] Clay B20 parts;

[0050] 20 parts of curing agent C;

[0051] 3 parts perlite.

[0052] The particle size of the waste lightweight thermal insulation bricks is 1-3mm, and the refractoriness is 1670°C.

[0053] The light raw material A component is a by-product of the power plant: floating beads, particle size 0.1-0.3mm, Al 2 o 3 Content 30-37%, bulk density 0.13g / cm 3 .

[0054] Clay B is heat-resistant clay with a particle size of ≤150 mesh, a refractoriness of 1690°C, Al 2 o 3 The content is 33%.

[0055] Its each component and mass ratio thereof of described curing agent C are:

[0056] 10 parts of A600 high alumina cement;

[0057] 1 part sodium tripolyphosphate;

[0058] Am...

Embodiment 2

[0085] The invention provides a light-weight heat-insulating spray coating for a circulating fluidized bed boiler. The components contained and the parts by mass are as follows:

[0086] 30 parts of waste lightweight thermal insulation brick particles;

[0087] 25 parts of light raw material A;

[0088] Clay B25 parts;

[0089] 27 parts of curing agent C;

[0090] 8 parts perlite.

[0091] The particle size of the waste lightweight thermal insulation bricks is 1-3mm, and the refractoriness is 1670°C.

[0092] The light raw material A component is a by-product of the power plant: floating beads, particle size 0.1-0.3mm, Al 2 o 3 Content 30-37%, bulk density 0.13g / cm 3 .

[0093] Clay B is heat-resistant clay with a particle size of ≤150 mesh, a refractoriness of 1690°C, Al 2 o 3 The content is 33%.

[0094] Its each component and mass ratio thereof of described curing agent C are:

[0095] 10 parts of A600 high alumina cement;

[0096] 1 part sodium tripolyphosphate...

Embodiment 3

[0111] The invention provides a light-weight heat-insulating spray coating for a circulating fluidized bed boiler. The components contained and the parts by mass are as follows:

[0112] 22 parts of waste light heat insulation brick particles;

[0113] 17 parts of light raw material A;

[0114] Clay B22 parts;

[0115] 26 parts of curing agent C;

[0116] 6 parts perlite.

[0117] The particle size of the waste lightweight thermal insulation bricks is 1-3mm, and the refractoriness is 1670°C.

[0118] The light raw material A component is a by-product of the power plant: floating beads, particle size 0.1-0.3mm, Al 2 o 3 Content 30-37%, bulk density 0.13g / cm 3 .

[0119] Clay B is heat-resistant clay with a particle size of ≤150 mesh, a refractoriness of 1690°C, Al 2 o 3 The content is 33%.

[0120] Its each component and mass ratio thereof of described curing agent C are:

[0121] 10 parts of A600 high alumina cement;

[0122] 1 part sodium tripolyphosphate;

[012...

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Abstract

A lightweight insulation spray paint for a circulating fluidized bed boiler, and a production and construction technology thereof belongs to the field of refractory material. The invention particularly relates to a lightweight insulation spray paint for a circulating fluidized bed boiler. The paint uses the crushed lightweight heat insulating brick waste material as a coarse aggregate, which is supplemented with quantitative perlite, floating beads, clay, A600 high-alumina cement, and sodium tripolyphosphate binder, and mixed. The paint has good insulation properties, high strength, high temperature bear of 1000 DEG C, and good thermal shock resistance, and meets the requirements of thermal insulation properties under the operating condition of the circulating fluidized bed boiler. The spray for construction reaches spray attachment rate of over 90%; compared to a traditional lightweight concrete pouring construction, the construction period is shortened by 60%, and construction cost is reduced by 50%, so as to the effectively use the waste lightweight heat insulating bricks. The invention belongs to recycling of industrial waste material.

Description

technical field [0001] The invention belongs to the field of refractory materials, and in particular relates to a lightweight heat-insulating spray paint for a circulating fluidized bed boiler. Background technique [0002] Under the existing conditions and technologies, for the horizontal flue, cyclone separator, tail flue and other parts of the circulating fluidized bed boiler, the heat insulation material needs to have good heat insulation performance, have a certain strength, be able to withstand high temperatures of 1000°C, and have good heat resistance However, the current pouring construction of heat-insulating refractory concrete needs to support the membrane, which requires a long construction period and a lot of labor. In order to increase the construction speed and reduce the construction cost, it is urgent to develop a light-weight heat-insulating spray coating, which is changed from the original pouring construction to spraying construction. Contents of the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66C04B33/132F23C10/18
CPCC04B33/1324C04B35/66C04B2235/96F23C10/18F23C2900/10001Y02P40/60
Inventor 张国栋
Owner SHANDONG YAOHUA REFRACTORY MATERIAL SCI & TECH CO LTD
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