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Anti-skinning spray coating material for cement kiln

A technology of anti-skinning and spraying coatings, which is applied in the field of fire-resistant spraying coatings. It can solve the problems of high water addition in pouring construction, inability to use for a long time, and lack of anti-skinning. It achieves outstanding thermal shock resistance, low rebound rate, high intensity effect

Active Publication Date: 2014-06-18
JIANGSU HENGNAI FURNACE CHARGE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the refractory materials used in cement kiln feeding pipes, smoke chambers and other parts are generally anti-skinning castables. During the emergency repair of cement kilns, it is difficult to make molds for the feeding pipes, smoke chambers and other parts, and the pouring is difficult. The amount of water added in pouring construction High, cannot be used for a long time
Existing spray coatings are generally high aluminum and do not have the function of anti-skinning

Method used

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  • Anti-skinning spray coating material for cement kiln
  • Anti-skinning spray coating material for cement kiln

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] An anti-skinning spray paint for a cement kiln, in terms of mass percentage, its components consist of:

[0027] Burnt gemstones with a particle size of 3-5mm 21%;

[0028] Burnt gemstones with a particle size of 1-3mm 19%;

[0029] Burnt gemstones with a particle size of 0.088-1mm 14%;

[0030] SiC 7% with a particle size of 0.088-1mm;

[0031] Guangxi white mud 7%;

[0032] α-Al 2 o 3 Micropowder 4%;

[0033] High alumina bauxite fine powder 6%;

[0034] SiC fine powder 6%;

[0035] Pure calcium aluminate cement 11%;

[0036] Spodumene 2%;

[0037] Pyrophyllite 3%;

[0038] The sum of the contents of the above components is 100%.

[0039] The above-mentioned anti-skinning spray paint for cement kiln, in terms of mass ratio, its component composition also includes polypropylene fiber, and the specific content ratio is: the total content of the above-mentioned components: polypropylene fiber is 1:0.0014.

[0040] Al in the burnt gem 2 o 3 The content is 50...

Embodiment 2

[0043] An anti-skinning spray paint for a cement kiln, in terms of mass percentage, its components consist of:

[0044] Burnt gemstones with a particle size of 3-5mm 23%;

[0045] Burnt gemstones with a particle size of 1-3mm 13%;

[0046] Burnt gemstones with a particle size of 0.088-1mm 14%;

[0047]SiC 11% with a particle size of 0.088~1mm;

[0048] Guangxi white mud 7%;

[0049] α-Al 2 o 3 Micropowder 7%;

[0050] High alumina bauxite fine powder 6%;

[0051] SiC fine powder 4%;

[0052] Pure calcium aluminate cement 13%;

[0053] Spodumene 2%;

[0054] Al in the burnt gem 2 o 3 The content of SiC is 51.3%; the SiC content in SiC and SiC fine powder with a particle size of 0.088-1mm is 90.8%; the Al in Guangxi white mud 2 o 3 The content is 32%; α-Al 2 o 3 Al in micropowder 2 o 3 The content is 95%; Al in the fine powder of high alumina bauxite 2 o 3 The content is 72%; Al in pure calcium aluminate cement 2 o 3 The content is 67.8%, and the initial set...

Embodiment 3

[0057] An anti-skinning spray paint for a cement kiln, in terms of mass percentage, its components consist of:

[0058] Burnt gemstones with a particle size of 3-5mm 15%;

[0059] Burnt gemstones with a particle size of 1-3mm 15%;

[0060] Burnt gemstones with a particle size of 0.088-1mm 14%;

[0061] SiC 9% with a particle size of 0.088~1mm;

[0062] Guangxi white clay 6%;

[0063] α-Al 2 o 3 Micropowder 4%;

[0064] High alumina bauxite fine powder 6%;

[0065] SiC fine powder 6%;

[0066] Pure calcium aluminate cement 20%;

[0067] Spodumene 1%;

[0068] Pyrophyllite 4%;

[0069] The index content and using method of each component in this spray paint are the same as embodiment two, and Al in pyrophyllite 2 o 3 The content is 28.9%.

[0070] According to the various performance indexes of the spray paint that above-mentioned embodiment makes are shown in the table below:

[0071]

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Abstract

The invention relates to a refractory spray coating material, in particular to an anti-skinning spray coating material for a cement kiln. The anti-skinning spray coating material comprises flint clay, SiC, Guangxi white mud, alpha-Al2O3 micro powder, high-aluminum fine powder, SiC fine powder, pure calcium aluminate cement, spodumene, pyrophyllite and polypropylene fibers. The anti-skinning spray coating material for the cement kiln can play an effectively anti-skinning role at the positions of a feed pipe, a smoke chamber and the like of the cement kiln, is excellent in medium-temperature and high-temperature resistance and outstanding in thermal shock stability performance and can avoid cracking during rapid temperature rise. Besides, the anti-skinning spray coating material for the cement kiln is rapid in construction by the aid of a semi-dry spray coating construction mode, and is low in rebound rate after construction.

Description

technical field [0001] The invention relates to a fire-resistant spray coating, in particular to an anti-skinning spray coating for cement kilns. Background technique [0002] At present, the refractory materials used in cement kiln feeding pipes, smoke chambers and other parts are generally anti-skinning castables. During the emergency repair of cement kilns, it is difficult to make molds for the feeding pipes, smoke chambers and other parts, and the pouring is difficult. The amount of water added in pouring construction High, can not be used for a long time. Existing spray coatings are generally high-aluminum and do not have the function of anti-skinning. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an anti-skinning castable with excellent anti-skinning performance and convenient construction in view of the shortcomings of the existing anti-skinning castables and high-alumina spray coatings described in the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66
Inventor 韩亚伟
Owner JIANGSU HENGNAI FURNACE CHARGE GRP
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