Preparation method of thermal-insulation fireproof material

A technology of thermal insulation and fireproof materials and materials, applied in the field of thermal insulation and fireproof materials, can solve the problems of high cost and high energy consumption, and achieve the effects of low density, low thermal conductivity and cost reduction

Pending Publication Date: 2022-03-04
内蒙古中建亚太建材科技有限公司
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  • Description
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Problems solved by technology

The cost of the whole process is high and the energy consumption is high

Method used

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  • Preparation method of thermal-insulation fireproof material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] (1) 222kg of fly ash, 100kg of quicklime and 4830kg of water were mixed and put into the reactor, and reacted at 220° C. for 2 hours to obtain the reacted material.

[0020] (2) Cool the reacted material to 90°C, then add 5kg of pulp fiber, mix and stir for half an hour, filter water in the mixing tank to obtain a formed wet filter cake, then dry in a tunnel kiln at a temperature of 100°C for 6 hours, Xonotlite is obtained after palletizing.

[0021] In this example, 222kg of fly ash contains 41.22% of glassy silica, 100kg of quicklime contains 91.2% of calcium oxide, and the liquid-solid ratio is 15:1.

Embodiment 2

[0023] (1) 227kg of fly ash, 100kg of quicklime and 5886kg of water were mixed and put into the reactor, and reacted at 210°C for 3 hours to obtain the reacted material.

[0024] (2) Cool the reacted material to 90°C, then add 5kg of pulp fiber, mix and stir for half an hour, filter water in the mixing tank to obtain a formed wet filter cake, then dry in a tunnel kiln at a temperature of 100°C for 6 hours, Xonotlite is obtained after palletizing.

[0025] In this example, 227kg of fly ash contains 40.10% glassy silica, 100kg of quicklime contains 91.0% of calcium oxide, and the liquid-solid ratio is 18:1.

Embodiment 3

[0027] (1) 222kg of fly ash, 100kg of quicklime and 6440kg of water were mixed and put into the reactor, and reacted at 200°C for 4 hours to obtain the reacted material.

[0028] (2) Cool the reacted material to 90° C., then add 5 kg of pulp fiber, mix and stir for half an hour, filter water to obtain a wet filter cake, and then dry at 100° C. for 6 hours to obtain xonotlite.

[0029] In this example, 222kg of fly ash contains 41.05% glassy silica, 100kg of quicklime contains 91.15% of calcium oxide, and the liquid-solid ratio is 20:1.

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Abstract

The invention provides a preparation method of a thermal-insulation fireproof material, belongs to the field of thermal-insulation fireproof materials, and solves the problems of high cost and the like in the existing production of xonotlite, the preparation method of the thermal-insulation fireproof material comprises the following steps: step S01, mixing fly ash, quick lime and water, putting the mixture into a reaction kettle, and carrying out a reaction, reacting to obtain a reacted material; and S02, adding reinforcing fibers into the reacted material, mixing and stirring, filtering water, and drying to obtain xonotlite. The fireproof thermal-insulation board has excellent fireproof thermal-insulation performance.

Description

technical field [0001] The invention belongs to the field of thermal insulation and fireproof materials, in particular to a preparation method of thermal insulation and fireproof materials. Background technique [0002] Xonotlite, molecular formula: Ca6[Si6O17](OH)2, pure product is colorless or white. Due to impurities, it is light rose, light gray and gray. Produced in serpentine rock. It can be used to prepare cement, ceramics, etc. [0003] The existing xonotlite is mostly prepared by reacting quicklime, quartz sand and water under certain conditions. The reaction temperature is about 240 degrees Celsius, the reaction liquid-solid ratio is about 30, and the reaction time needs more than 8 hours. Before the reaction, Quartz sand needs to be ground into powder with a ball mill. The cost of the whole process is high and the energy consumption is high. Contents of the invention [0004] The object of the present invention is to provide a method for preparing heat-insu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/12C04B111/28
CPCC04B28/12C04B2111/28C04B2201/20C04B2201/32C04B18/08C04B18/241
Inventor 赵春光林仁强张海波
Owner 内蒙古中建亚太建材科技有限公司
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