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Aorthite micro-nano pore heat insulation refractory material and preparation method thereof

A technology of refractory materials and micro-nanopores is applied in the field of refractory materials, which can solve the problems of incompatible heat-insulating refractory materials, low thermal conductivity of materials, low bulk density, etc., and achieves short demoulding and drying cycles, high strength and simple process. easy-to-control effects

Pending Publication Date: 2022-03-04
ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The preparation method is green and pollution-free, the structure and performance of the product are easy to accurately control, and the yield is high, which can solve the problem that the heat-insulating refractory material obtained by the existing preparation method cannot take into account the low thermal conductivity, low bulk density, high strength and high yield of the material. The problem

Method used

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  • Aorthite micro-nano pore heat insulation refractory material and preparation method thereof
  • Aorthite micro-nano pore heat insulation refractory material and preparation method thereof
  • Aorthite micro-nano pore heat insulation refractory material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0095] The calcium long stone micro-nodular separation thermal refractory material, a base material, a suspending agent, a mineralizing agent, an infrared sunscreen, a foaming agent, an inorganic curing agent, an organic curing agent, a biocomposite modifier, and water production. The type and amount of the raw materials in this embodiment will be described below:

[0096] Basic ingredients: 0.06 tons of gray, 0.3 tons of kaolin, 0.1 tons of potassium longite, 0.1 tons of sodium, 0.21 tons of industrial Al (OH) 3 0.05 tons of boehmite, 0.05 tons of water aluminum stone, 0.13 tons of diatomaceous earth. Kaolin in Al 2 O 3 The mass content is 32 ~ 35%, SIO 2 The mass content is 61 ~ 64%, the particle size is 0.6 ~ 1 mm; potassium longite in K 2 The mass content of O is 9 ~ 11%, Al 2 O 3 The mass content is 18 ~ 20%, SIO 2 The mass content is 64 ~ 66%, particle size 0.08mm; sodium fossil in NA 2 O The mass percentage content is 10 ~ 12%, Al 2 O 3 The mass content is 19 ~ 22%, SiO 2 T...

Embodiment 2～15

[0113] Example 2 to 15 The formulation composition of the calcium long stone micro-nodular separation heat refractory material is shown in Table 1, Table 2:

[0114] Table 1 Example 2 to 8 Formulations of the fine refractory material of calcium long stone micro-nodular

[0115]

[0116]

[0117]

[0118]

[0119] Table 2 Example 9 ~ 16 Calcium long stone micro-nodular separation heat refractory material formulation

[0120]

[0121]

[0122]

[0123]

[0124]

Embodiment 2

[0126] In Example 2, the base material obtained from step (1) was poured into the roller ball mill, plus 2.8 tons of water, spherical mill mixing for 10 h, and the ultrasonic oscillating (ultrasonic power 1500W) was obtained, and uniform suspension paste (wherein solid particles Particle size 30 μm); ball mill in grinding ball using aluminum oxide ball, big ball Mid-balloon small ball The weight ratio is 1: 1: 8, and the weight ratio of material / ball is 1: 0.9;

[0127] The suspended slurry was injected into the stirrer, first agload 1min (the line velocity of the stirring line was 5 m / s), and then the proximity obtained by the step (2) and a 120 kg silica sol, 80 kg alumina sol was added to the stirrer The mixing paddle is rapidly mixed with a line speed of 80 m / s to obtain a homogeneous foam slurry.

[0128] In the aluminum alloy mold, the air temperature and the relative humidity are maintained in an environment of 1 ° C, 40%, respectively, to be cured;

[0129] The so...

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Abstract

The invention belongs to the field of refractory materials, and particularly relates to an anorthite micro-nano pore heat insulation refractory material and a preparation method thereof. The anorthite micro-nano pore heat insulation refractory material is mainly prepared from a basic raw material, an additive and water. The anorthite micro-nano pore heat insulation refractory material is white, faint yellow or yellow in appearance, the principal crystalline phase of the product is anorthite, the mass content of CaO in the chemical composition is 4-22 wt%, the pore size distribution is 0.006-250 [mu] m, the average pore size is 0.1-19 [mu] m, and the pore structure of the micro-nano size ensures that the product has better heat insulation performance under the conditions of low volume density and high strength. The preparation method is green, environment-friendly and pollution-free, and the structure and performance of the product are easy to accurately regulate and control.

Description

Technical field [0001] The present invention belongs to the field of refractory materials, and more particularly to a calcium long stone micro-nodular separation heat refractory material and a preparation method thereof, in particular to a micro-nano-sized pore structure, ultra-low conductivity coefficient and volume density, high air hole Rate, high strength and green controlled calcium long stone micro-nosopine, heat refractory material. Background technique [0002] The high temperature industry is the main energy consumption industry in industrial production in my country. The thermal energy utilization rate of various kiln is the main reason for its energy consumption. Tons of coordinate, it can be seen that my country's high temperature industrial energy conservation potential is huge. It is necessary to improve the thermal efficiency of industrial kiln. The most important thing is to develop high-efficiency insulation technology, adopting advanced insulation materials, str...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/195C04B35/66C04B35/622C04B38/10
CPCC04B35/195C04B35/66C04B35/622C04B35/62204C04B38/10C04B2235/3208C04B2235/349C04B2235/3472C04B2235/3218C04B2235/3418C04B2235/3232C04B2235/3248C04B2235/3821C04B2235/3239C04B2235/3272C04B2235/3284C04B2235/3217C04B2235/322C04B2235/441C04B2235/483C04B2235/3267C04B2235/3227C04B2235/3224C04B2235/3215C04B2235/3225C04B2235/3229C04B2235/3213C04B2235/3258C04B2235/3294C04B2235/3244C04B2235/3843C04B2235/3279C04B2235/3234C04B2235/3222C04B2235/3454C04B2235/5436C04B2235/5427C04B2235/6562C04B2235/6565C04B2235/6567C04B2235/77C04B2235/96C04B2235/9607C04B2235/9615C04B38/0054C04B38/0067C04B38/0074
Inventor 郭会师李文凤
Owner ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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