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Zirconium oxide-containing micro-nano pore heat insulation refractory material and preparation method thereof

A refractory material containing zirconia technology, which is applied in the field of refractory materials, can solve the problems of thermal insulation refractory materials, low thermal conductivity of materials, and low bulk density, etc., and achieves short demoulding and drying cycles, high strength, and simple process easy to control effect

Active Publication Date: 2022-03-08
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, and it 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 volume density, high strength and high yield of the material. The problem

Method used

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  • Zirconium oxide-containing micro-nano pore heat insulation refractory material and preparation method thereof
  • Zirconium oxide-containing micro-nano pore heat insulation refractory material and preparation method thereof
  • Zirconium oxide-containing micro-nano pore heat insulation refractory material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0101] The micro-nanoporous heat-insulating refractory material containing zirconia in this embodiment is composed of basic raw materials, suspending agent, mineralizer, infrared sunscreen agent, foaming agent, inorganic curing agent, organic curing agent, cell regulator and water production. The kind and consumption description of each raw material in the present embodiment are as follows:

[0102] Basic raw materials: 0.4 tons of zircon, 0.1 tons of industrial Al(OH) 3 , 0.1 tons of boehmite, 0.3 tons of kaolin, 0.1 tons of silica powder. The chemical composition of zircon is ZrO 2 The mass percentage of SiO is 64~67wt%. 2 The mass percentage content of 32 ~ 35wt%, particle size ≦ 0.08mm; industrial Al(OH) 3 Al in the chemical composition 2 o 3 The mass percentage of boehmite ≧ 65wt%, particle size ≦ 0.08mm; Al in the chemical composition of boehmite 2 o 3 Mass percentage ≧70%, particle size ≦0.08mm; Al in the chemical composition of kaolin 2 o 3 The mass percentag...

Embodiment 2～17

[0118] The formula composition of the zirconia-containing micro-nanoporous heat-insulating refractory materials in Examples 2-17 is shown in Table 1 and Table 2 below:

[0119] Table 1 Example 2-9 Formulas of micro-nanoporous insulating refractory materials containing zirconia

[0120]

[0121]

[0122]

[0123]

[0124]

[0125] Table 2 Example 10-17 Formula of micro-nanoporous thermal insulation refractory material containing zirconia

[0126]

[0127]

[0128]

[0129]

Embodiment 2

[0130] The preparation process of the micro-nanoporous insulating refractory material containing zirconia in Example 2 is as follows:

[0131] (1) Weigh zircon, industrial alumina, β-Al according to the formula 2 o 3 , γ-Al 2 o 3 , coal gangue, diatomite, β-tridymite, poured into a planetary mixer and dry-mixed for 5 minutes to obtain basic raw materials; weighed bentonite, polyaluminum chloride, Y 2 o 3 , MgO, V 2 o 5 , NiO, K 2 Ti 6 o 13 , Sb 2 o 5 , poured into a double-cone mixer and dry-mixed for 5 minutes to obtain the additive.

[0132] (2) Weigh quaternary ammonium type Gemini surfactant, animal protein foaming agent, silica gel, vinyl acetate, ethylene and acrylate copolymer, hydroxyethyl cellulose ether, hydroxyethyl ethyl cellulose Ether and hydroxypropyl cellulose ether were poured into a V-type mixer and mixed for 5 minutes to obtain a uniform foaming composition.

[0133] (3) Pour the basic raw materials and additives obtained in step (1) into a roll...

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Abstract

The invention belongs to the field of refractory materials, and particularly relates to a zirconia-containing micro-nano pore heat insulation refractory material and a preparation method thereof. The zirconia-containing micro-nano pore heat insulation refractory material is prepared from a basic raw material, an additive and water, the mass content of ZrO2 in the refractory material is 5-98%. The zirconia-containing micro-nano pore heat insulation refractory material is white, light yellow or light pink in appearance, in the refractory material, the pore size of spherical pores is distributed between 0.006-250 microns, the average pore size is 0.1-20 microns, and the existence of the micro-nano pore structure 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, the structure and performance of the product are easily and accurately controlled, and the finally prepared refractory material can meet the requirements of ultralow heat conductivity and light weight and also has relatively high strength by regulating and controlling the dosage of each raw material and a process.

Description

technical field [0001] The invention belongs to the technical field of refractory materials, and in particular relates to a zirconia-containing micro-nanoporous heat-insulating refractory material and a preparation method thereof. In particular, it relates to a zirconia-containing micro-nanoporous thermal insulation refractory material with micro-nano-sized pore structure, ultra-low thermal conductivity and bulk density, high porosity, high strength and green controllable preparation. Background technique [0002] High-temperature industry is the main energy-consuming industry in my country's industrial production. The low thermal energy utilization rate of various kilns is the main reason for their large energy consumption. If the average thermal efficiency can be increased by 20% according to the national requirements, energy can be saved equivalent to 220 million tons of standard coal, it can be seen that my country's high-temperature industrial energy-saving potential is ...

Claims

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Application Information

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IPC IPC(8): C04B38/10C04B38/00C04B35/482C04B35/66C04B35/48C04B35/622
CPCC04B38/10C04B38/0054C04B38/007C04B35/482C04B35/66C04B35/48C04B35/622C04B2235/3217C04B2235/3418C04B2235/96
Inventor 郭会师李文凤
Owner ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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