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Silicon carbide anti-skinning refractory spray coating

A silicon carbide and anti-skinning technology, which is applied in the field of silicon carbide anti-skinning refractory spray coatings, can solve the problems of unguaranteed construction quality, high cost, and difficulty in installing molds, so as to improve chemical corrosion resistance and anti-skinning ability, improving high temperature strength, and improving the effect of high temperature performance

Active Publication Date: 2015-11-25
长兴兴鹰新型耐火建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the construction of new dry-process cement kiln, due to the special structure of the rotary kiln, there are often some parts with special space and construction, which are inconvenient for construction and maintenance by construction personnel, or the shape of the parts is specific, it is difficult to install molds, the cost is high, the construction is difficult, and the maintenance of the rotary kiln is time-consuming. The requirements for the construction period are relatively strict, and the maintenance period after construction or repair is short, the kiln period is short, and it can be put into use soon, which makes the time left for the castable maintenance very small, sometimes even close to zero, which seriously restricts The normal service life of the castable is guaranteed, such as the decomposition furnace and the top of the preheater of the 5000T / D cement production line, the material used is about 30-40 tons, and the construction personnel are 8-10 people. Generally, it takes 2-3 shifts to complete, and the construction is difficult. , limited by the climate temperature, the construction quality cannot be guaranteed

Method used

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  • Silicon carbide anti-skinning refractory spray coating
  • Silicon carbide anti-skinning refractory spray coating
  • Silicon carbide anti-skinning refractory spray coating

Examples

Experimental program
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Effect test

Embodiment 1

[0033] The silicon carbide anti-skinning refractory spray coating includes the following components and the mass percentage of each component is: aggregate 50%, fine powder 20%, expansion agent 10%, composite powder 10%, composite additive 5%, binder 5%, as preferred, the spray coating is only composed of aggregate, fine powder, expansion agent, composite powder, composite additive and binder, wherein one part of aggregate includes low-aluminum mullite bone with a particle size of 0.1-5mm 50% material, 30% silicon carbide aggregate with a particle size of 0.1-1mm, low-alumina bauxite aggregate and 20%, and a portion of fine powder includes 45% of low-alumina mullite fine powder with a particle size of ≤180 mesh and a particle size of ≤180 Objective silicon carbide fine powder 35% and low bauxite fine powder 20%, the expansion agent is a combination of kyanite and sillimanite, or, the expansion agent is a combination of andalusite and sillimanite, or, the The expansion agent is...

Embodiment 2

[0036] Silicon carbide anti-skinning refractory spray coating includes the following components and the mass percentage of each component is: aggregate 70%, fine powder 5%, expansion agent 5%, composite powder 5%, composite additive 10%, binder 5%, as preferred, the spray coating is only composed of aggregate, fine powder, expansion agent, composite powder, composite additive and binder, wherein one part of aggregate includes low-aluminum mullite bone with a particle size of 0.1-5mm 70% silicon carbide aggregate with a particle size of 0.1-1mm, 15% low-alumina bauxite aggregate and 15%, and a portion of fine powder includes 60% of low-alumina mullite fine powder with a particle size of ≤180 mesh and a particle size of ≤180 Purpose silicon carbide fine powder 30% and low bauxite fine powder 10%, described expansion agent is the combination of kyanite and sillimanite, perhaps, described expansion agent is the combination of andalusite and sillimanite, or, all The expansion agent...

Embodiment 3

[0038] The silicon carbide anti-skinning refractory spray coating includes the following components and the mass percentage of each component is: aggregate 60%, fine powder 12%, expansion agent 8%, composite powder 7%, composite additive 8%, binder 5%, as preferred, the spray paint is only composed of aggregate, fine powder, expansion agent, composite powder, composite additive and binder, wherein, one part of aggregate includes low-aluminum mullite bone with a particle size of 0.1-5mm 60% material, 20% silicon carbide aggregate with a particle size of 0.1-1mm, low-bauxite aggregate and 20%, and a portion of fine powder includes 55% of low-alumina mullite fine powder with a particle size of ≤180 mesh and a particle size of ≤180 Purpose silicon carbide fine powder 30% and low bauxite fine powder 15%, described expansion agent is the combination of kyanite and sillimanite, perhaps, described expansion agent is the combination of andalusite and sillimanite, or, all The expansion ...

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Abstract

The invention discloses silicon carbide anti-skinning fire-resistant spray paint which comprises the following components in percentage by mass: 50-70% of bone powder, 5-20% of fine powder, 5-10% of swelling agent, 5-10% of compound powder, 3-10% of compound additive and 5-10% of bonding agent. The spray paint is high in strength, favorable in wear resistance, anti-skinning, favorable in stickability, low in rebound rate and long in service life, can be used instead of bricks and castable materials in many occasions without formwork erecting on site, achieves the advantages of convenient and fast construction, short maintenance time and short furnace baking period, and can save a large mount of time and accelerate the turnover rate and utilization ratio of equipment.

Description

technical field [0001] The invention relates to a silicon carbide anti-skinning fire-resistant spray paint. Background technique [0002] In the construction of new dry-process cement kiln, due to the special structure of the rotary kiln, there are often some parts with special space and construction, which are inconvenient for construction and maintenance by construction personnel, or the shape of the parts is specific, it is difficult to install molds, the cost is high, the construction is difficult, and the maintenance of the rotary kiln is time-consuming. The requirements for the construction period are relatively strict, and the maintenance period after construction or repair is required to be short, and the kiln period is short, and it can be put into use soon, which makes the time left for the castable maintenance very small, sometimes even close to zero, which seriously restricts The normal service life of the castable is guaranteed, such as the decomposition furnace...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66
Inventor 王强许高
Owner 长兴兴鹰新型耐火建材有限公司
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