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A kind of degradable soluble ceramic fiber cement and its application method

A ceramic fiber and soluble technology, applied in the field of cement, can solve the problems of easy generation of dust, easy falling off, sudden strength drop, etc., achieving the effect of good compatibility and adaptability, solving low strength, and improving the status.

Active Publication Date: 2021-09-07
SUZHOU ISOLITE EASTERN UNION CERAMIC FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large difference in the chemical composition of the two, the use of ordinary cement or surface coatings on soluble ceramic fiber products cannot reach the original design strength, resulting in low strength and easy to fall off.
Therefore, ordinary cement and surface coatings are no longer suitable for soluble ceramic fibers, which affects the promotion of soluble ceramic fibers
[0005] (2) The aluminum silicate cement commonly used in construction has a high alumina content, and it is easy to generate dust in the case of long-term use. The dust will enter the human respiratory tract and enter the lungs, and cannot be dissolved and excreted from the body, which increases the risk of cancer.
In addition, during the production process of cement, dust will inevitably be generated, and the dust of ordinary cement contains a large amount of dust formed by alumina micropowder or kaolin powder, and workers will also have the risk of inhaling dust during the production process
[0006] (3) In the case of using ordinary mastic and surface coating, due to the large difference in chemical composition, it will cause a mismatch. If it is used forcibly, when the temperature is around 1000 ° C, it is very easy to cause a sudden drop in strength, and the strength will be reduced to 0.5 Below MPa, it will cause shedding and deformation of the furnace body, and even the insulation layer will collapse.
[0007] Based on the above problems, there is currently no cement that specifically targets soluble ceramic fibers or has a good match with soluble ceramic fibers.

Method used

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  • A kind of degradable soluble ceramic fiber cement and its application method
  • A kind of degradable soluble ceramic fiber cement and its application method
  • A kind of degradable soluble ceramic fiber cement and its application method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Carry out raw material according to the proportioning of table 1:

[0025] Table 1. Raw material ratio 1

[0026]

[0027] First, silica sol with a concentration of 30% is provided and mixed with water at a volume ratio of 2:1 to obtain an inorganic refractory solvent with a mass fraction of 22%. Secondly, the mass percentage is divided into 40% soluble ceramic fiber, 35% magnesia, 2% bentonite, 1% polyacrylamide and 22% inorganic refractory solvent obtained above for mixing, wherein the particles of magnesia The degree is 200 mesh. Then, the mixed raw materials are stirred for 2 hours to finally form a fiber mud-like cement product.

[0028] Take an appropriate amount of the obtained fibrous mud product, add 1.5% water and stir evenly. Among them, the amount of water added is within the range of 0% to 3%, which has no effect on the flexural strength itself, but only affects the workability. Adding water and stirring during use can improve the workability. Only w...

Embodiment 2

[0031] Carry out raw material according to the proportioning of Table 2:

[0032] Table 2. Raw material ratio 2

[0033]

[0034] First, silica sol with a concentration of 30% is provided and mixed with water at a volume ratio of 3:1 to obtain an inorganic refractory solvent with a mass fraction of 25%. Secondly, take 50% soluble ceramic fiber, 20% magnesia, 4% bentonite, 1% polyacrylamide and 25% inorganic refractory solvent obtained above to mix, wherein the particle size of magnesia It is 200 mesh. Then, the mixed raw materials are stirred for 2 hours to finally form a fiber mud-like cement product.

[0035] Take an appropriate amount of the obtained fibrous mud product, add 1% water and stir evenly. Among them, the amount of water added is in the range of 0% to 3%, which has no effect on the flexural strength of itself, but only affects the workability. During use, it is necessary to add water for stirring to improve the workability. Only when the amount of water ad...

Embodiment 3

[0038] Carry out raw material according to the proportioning of table 3:

[0039] Table 3. Raw material ratio 3

[0040]

[0041] First, silica sol with a concentration of 30% is provided and mixed with water at a volume ratio of 2:1 to obtain an inorganic refractory solvent with a mass fraction of 22%. Secondly, get the soluble ceramic fiber that is 55% by mass percentage, 20% magnesium oxide, 2% bentonite, 1% carboxymethyl cellulose and the inorganic refractory solvent of 22% that get before and mix, wherein the magnesium oxide The particle size is 200 mesh. Then, the mixed raw materials are stirred for 2 hours to finally form a fiber mud-like cement product.

[0042]Take an appropriate amount of the obtained fibrous mud product, add 1.5% water and stir evenly. Among them, the amount of water added is in the range of 0% to 3%, which has no effect on the flexural strength of itself, but only affects the workability. During use, it is necessary to add water for stirring ...

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Abstract

The invention discloses a degradable soluble ceramic fiber cement and a using method thereof. The mass percentages are 40%-55% of soluble ceramic fibers, 20%-35% of magnesium compounds, and 20%-25% of inorganic refractory solvents. , 1% to 5% of expansion material, 0.5% to 1% of additives are mixed, and then stirred for 2 hours to obtain degradable soluble ceramic fiber cement. When using, add 0 to 3% of water and stir evenly, and then smear it On both sides of the ceramic fiber boards to be bonded, then dry naturally for at least 12 hours, then dry at 105°C for at least 12 hours, and finally go through a furnace temperature treatment above 1000°C, or directly pass through a furnace temperature treatment above 1000°C without drying. Through the above method, the present invention can be fully applied to the bonding of soluble ceramic fiber products, and has the characteristics of high strength and good adaptability, and this kind of cement itself is produced and manufactured by soluble ceramic fibers, which is biosoluble and can be used in the human body. Degradation, more environmentally friendly and safer to use.

Description

technical field [0001] The invention relates to a cement, in particular to a degradable soluble ceramic fiber cement and a use method thereof. Background technique [0002] Ceramic fiber is a fibrous, high-temperature-resistant thermal insulation material. Because of its good thermal insulation performance and small heat storage, it is used as a lining material for various furnaces and kilns. It is widely used in metallurgy, steel, petroleum, glass and ceramics and other industrial fields. widely used. With the increasing emphasis on the environment and health in human society, soluble fibers intended to replace ordinary ceramic fibers have emerged. [0003] Soluble ceramic fiber with CaO, MgO, SiO 2 As the main chemical component, it has certain biodegradability and solubility, and basically does not contain Al itself 2 o 3 ingredients, avoiding the risk of cancer. However, soluble ceramic fibers have the following problems in use: [0004] (1) In the construction of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66C04B37/00
CPCC04B35/66C04B37/005C04B2235/3206C04B2235/3445C04B2235/349C04B2235/96C04B2237/04
Inventor 陶治平陆祖良
Owner SUZHOU ISOLITE EASTERN UNION CERAMIC FIBER
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