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Light insulating brick

A thermal insulation brick and lightweight technology, applied in the field of thermal insulation materials, can solve the problems of long time consumption and complex firing process, and achieve the effect of wide application range, simple firing process and improved plasticity

Active Publication Date: 2015-12-23
KEDA INDUSTRIAL GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The firing process of this patent is relatively complicated, and the total firing time is about 10 hours, which takes a long time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0103] The raw materials are mixed according to the ratio, and the formula is: 60% industrial cinder, 20% mud, 4% potassium feldspar, 4% albite feldspar, 4% quartz, and 8% polishing slag; then ball milling, spraying, compression molding, and drying , firing, polishing, edging, and finally packaged into finished products;

[0104] Wherein, firing step comprises:

[0105] (1) Add a refractory backing plate under the green body, and spread at least one layer of alumina high-temperature powder between the green body and the refractory backing plate;

[0106] (2) Raise the green body from room temperature to 800°C, and the heating time is t 1 =20min;

[0107] (3) Slowly raise the temperature of the green body from 800°C to 1000°C, and the heating time is t 2 =40min, and heat preservation under the condition of temperature 1000℃, the heat preservation time is t 3 =20min;

[0108] (4) Raise the green body from 1000°C to temperature T, wherein the temperature T is 1150°C, and the...

Embodiment 2

[0112] Mix the raw materials according to the ratio, the formula is: 65% industrial cinder, 10% mud, 5% potassium feldspar, 5% albite feldspar, 5% quartz, 10% polishing slag;

[0113] After ball milling, spraying, pressing, drying, firing, polishing, edging, and finally packaging into finished products.

[0114] Wherein, firing step comprises:

[0115] (1) Add a refractory backing plate under the green body, and spread at least one layer of high-temperature silica powder between the green body and the refractory backing plate;

[0116] (2) Raise the green body from room temperature to 800°C, and the heating time is t 1 =30min;

[0117] (3) Slowly raise the temperature of the green body from 800°C to 1000°C, and the heating time is t 2 =50min, and heat preservation under the condition of temperature 1000℃, the heat preservation time is t 3 =25min;

[0118] (4) Raise the green body from 1000°C to temperature T, wherein the temperature T is 1200°C, and the heating time is t ...

Embodiment 3

[0122] Mix the raw materials according to the ratio, and the formula is: 70% industrial cinder, 6% mud, 6% potassium feldspar, 6% albite feldspar, 6% quartz, and 6% polishing slag;

[0123] After ball milling, spraying, pressing, drying, firing, polishing, edging, and finally packaging into finished products.

[0124] Wherein, firing step comprises:

[0125] (1) Add a refractory backing plate under the green body, and spread at least one layer of alumina high-temperature powder between the green body and the refractory backing plate;

[0126] (2) Raise the green body from room temperature to 800°C, and the heating time is t 1 =40min;

[0127] (3) Slowly raise the temperature of the green body from 800°C to 1000°C, and the heating time is t 2 =60min, and heat preservation under the condition of temperature 1000℃, the heat preservation time is t 3 =30min;

[0128] (4) Raise the green body from 1000°C to temperature T, wherein the temperature T is 1180°C, and the heating tim...

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Abstract

The present invention discloses a light insulating brick. The light insulating brick is prepared from the following main raw materials: 50% to 76% of industrial cinder, 6% to 20% of mud, 4% to 20% of potassium feldspar, 4% to 20% of albite, 4% to 20% of quartz and 0 to 15% of polished residues. According to the light insulating brick, the industrial cinder is taken as a main formula body, and the addition is more than 50%; and moreover, the whole sintering time of the light insulating brick is controlled within 4-7 hours. The prepared light insulating brick is rigid in texture, low in specific gravity and high in porosity, and the refractory temperature is over 1000 DEG C, so that conventional fire can be resisted easily; and the light insulating brick is low in heat conductivity and high in compressive strength, and is very suitable for heat insulation of outer walls and indoor heat insulation and sound insulation.

Description

technical field [0001] The invention relates to the field of thermal insulation materials, in particular to a lightweight thermal insulation brick used for thermal insulation of exterior walls and indoor thermal insulation and sound insulation. Background technique [0002] The thermal insulation material involved in the present invention is mainly used for thermal insulation of exterior walls and indoor thermal insulation and sound insulation. Existing thermal insulation materials mainly include the following types: [0003] 1. The existing external wall insulation materials are mainly benzene boards. The fire-resistant temperature of benzene boards is about 700 degrees, and they have no hardness. They have a texture similar to cotton, so they must be used with other building materials as rigid supports. , to form a composite material for use. Moreover, the temperature of the fire is generally 800-1000 degrees, and the fire-resistant temperature of 700 degrees of benzene b...

Claims

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Application Information

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IPC IPC(8): C04B38/06
Inventor 林智武祯邵俊杰郭峰陈全娣
Owner KEDA INDUSTRIAL GROUP CO LTD
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