Poly-light heat-insulating plastic concrete for gasification furnace and power station boiler and production process thereof

A power plant boiler and plastic concrete technology, which is applied in the field of refractory materials, can solve the problems of increasing boiler dangerous accidents, difficulty in achieving uniform compaction, and high labor intensity for repairs, so as to achieve convenient construction, prevent sintering cracks, and reduce heating permanent line changes and the effect of thermal conductivity

Active Publication Date: 2021-01-08
郑州东方炉衬材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If it is not repaired in time, it will cause wear and tear of the parts in the boiler and increase the probability of dangerous accidents in the boiler
After the boiler lining material is partially damaged, the traditional repair method relies on workers to use a scraper to apply the repair mud to the incomplete part, and then manually smooth the remaining surface, which is labor-intensive to repair
Moreover, the repair effect of this method is generally poor, because the mud particles added later are looser than the original kiln wall, and it is difficult to achieve uniform compaction. Once the temperature difference changes, it will loosen and fall off, and the repair period is very high. long, the furnace still needs to be shut down, and the shutdown process will cause great economic losses

Method used

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  • Poly-light heat-insulating plastic concrete for gasification furnace and power station boiler and production process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A kind of poly light heat insulation plastic concrete for gasification furnace and power plant boiler, the raw material contains 20% of perlite, 30% of fly ash, 8% of plasticizer, 5% of kyanite, 12% of silicon micropowder in terms of weight percentage, Water glass 25%, based on the above raw materials, plus 0.1% engineering fiber, 0.2% sodium tripolyphosphate, and 0.1% sodium fluorosilicate.

[0026] The production process of the poly-light heat-insulating plastic concrete is as follows: each raw material is weighed according to the proportion, and the perlite, fly ash, plasticizer, silicon micropowder and kyanite are respectively mixed under the condition of 16-35 °C, and stirred for 5-35 °C. 6min, get Mixture 1, set aside; mix sodium tripolyphosphate, water glass, sodium fluorosilicate, engineering fiber, stir for 3-5min, get Mixture 2, set aside; mix Mixture 1 and Mixture 2 again, After stirring evenly, put it into a packaging bag and set it aside.

[0027] The poly...

Embodiment 2

[0029] A kind of poly light-weight thermal insulation plastic concrete for gasification furnace and power plant boiler, the raw material contains 25% of perlite, 30% of fly ash, 10% of plasticizer, 5% of kyanite, 5% of silicon micropowder in weight percentage, Aluminum sulfate 25%, based on the above raw materials, plus 0.15% engineering fiber, 0.15% sodium tripolyphosphate, and 0.1% sodium fluorosilicate.

[0030] The production process of the poly-light heat-insulating plastic concrete is as follows: each raw material is weighed according to the proportion, and the perlite, fly ash, plasticizer, silicon micropowder and kyanite are respectively mixed under the condition of 16-35 °C, and stirred for 5-35 °C. 6min, get mixture 1, set aside; mix sodium tripolyphosphate, aluminum sulfate, sodium fluorosilicate, engineering fiber, stir for 3-5min, get mix 2, set aside; then mix mix 1 and mix 2, After stirring evenly, put it into a packaging bag and set it aside.

[0031] The poly...

Embodiment 3

[0033] A kind of poly light heat insulation plastic concrete for gasification furnace and power plant boiler, the raw material contains 25% of perlite, 35% of fly ash, 8% of plasticizer, 3% of kyanite, 5% of silicon micropowder in weight percentage, Aluminum sulfate 24%, based on the above raw materials, plus 0.1% engineering fiber, 0.2% sodium tripolyphosphate, and 0.15% sodium fluorosilicate.

[0034] The production process and application method of the poly-light heat-insulating plastic concrete are the same as those in Example 2.

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Abstract

The invention relates to poly-light heat-insulating plastic concrete for a gasification furnace and a power station boiler, which comprises the following raw materials in percentage by weight: 20-30%of perlite, 30-35% of fly ash, 8-20% of plasticizer, 3-5% of expanding agent, 5-12% of silica powder and 24-30% of binding agent, and on the basis of the above raw materials, additionally 0.1-0.15% ofthe total amount of the basic raw materials of engineering fibers, 0.15-0.2% of a water reducing agent, and 0.1-0.15% of the curing agent. The poly-light heat-insulating plastic concrete has the advantages of high compressive strength, low heat conductivity coefficient, low heating permanent linear change rate and the like, related product performances meet national standards and are remarkably superior to those of similar products, and the volume density is 800-1200 kg / m<3>, the heat conductivity coefficient is 0.26-0.28 W / (m.K), the compressive strength is 8-10 MPa, and the heating permanent linear change (1200 DEG C*3 h) is + / -1%.

Description

technical field [0001] The invention relates to a poly-light heat-insulating plastic concrete for gasification furnaces and power plant boilers and a production process thereof, belonging to the technical field of refractory materials. Background technique [0002] The gasifier, or coal-to-gas gasifier, is one of the key large-scale equipment of the gasification device in the coal chemical industry. Power plant boilers, or power plant CFB circulating fluidized bed boilers, refer to medium and large boilers in power plants that provide steam with a specified quantity and quality to steam turbines, and are one of the main thermal equipment of thermal power plants. The refractory materials in gasifiers and power plant boilers play a role of heat insulation. The masonry quality of refractory materials determines the safety, stability and service life of the entire system device, and determines whether the gasifier and power plant boilers can be stable and safe for a long time T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/26C04B111/28
CPCC04B28/26C04B2201/20C04B2201/32C04B2201/50C04B2111/28C04B22/126C04B22/16C04B16/0633C04B16/0683C04B18/14C04B18/08C04B14/062C04B22/08C04B2103/0068C04B22/148
Inventor 张青永邵红洲张鹏飞石策陈宏强
Owner 郑州东方炉衬材料有限公司
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