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A kind of firing process of light-weight insulating brick

An insulating brick, light-weight technology, applied in the field of insulating materials, can solve the problems of long time consumption and complicated firing process, and achieve the effect of simple firing process, improving plasticity and ensuring compressive strength

Active Publication Date: 2017-12-26
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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  • A kind of firing process of light-weight insulating brick

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0085] (1) Mix the raw materials according to the ratio. The formula is: 60% industrial cinder, 20% mud, 4% potassium feldspar, 4% albite feldspar, 4% quartz, and 8% polishing slag; then ball milling, spraying, and pressing Forming and drying to obtain a green body;

[0086] (2) 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;

[0087] (3) Raise the green body from room temperature to 800°C, and the heating time is t 1 =20min;

[0088] (4) 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;

[0089] (5) Raise the green body from 1000°C to temperature T, wherein the temperature T is 1150°C, and the heating time is t 4 =40min;

[0090] (6) Naturally cool down from temperature T to normal temp...

Embodiment 2

[0093] (1) Mix the raw materials according to the ratio. The formula is: 65% industrial cinder, 10% mud, 5% potassium feldspar, 5% albite feldspar, 5% quartz, and 10% polishing slag; then ball milling, spraying, and pressing Forming and drying to obtain a green body;

[0094] (2) 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;

[0095] (3) Raise the green body from room temperature to 800°C, and the heating time is t 1 =30min;

[0096] (4) 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;

[0097] (5) Raise the green body from 1000°C to temperature T, wherein the temperature T is 1200°C, and the heating time is t 4 =50min;

[0098] (6) Naturally cool down from temperature T to normal temp...

Embodiment 3

[0101] (1) Mix the raw materials according to the ratio, the formula is: 70% industrial cinder, 6% mud, 6% potassium feldspar, 6% albite feldspar, 6% quartz, 6% polishing slag; then ball milling, spraying, pressing Forming and drying to obtain a green body;

[0102] (2) 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;

[0103] (3) Raise the green body from room temperature to 800°C, and the heating time is t 1=40min;

[0104] (4) 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;

[0105] (5) Raise the green body from 1000°C to temperature T, wherein the temperature T is 1180°C, and the heating time is t 4 =50min;

[0106] (6) Naturally cool down from temperature T to normal temperature, a...

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Abstract

The invention discloses a sintering process for lightweight thermal insulation bricks. %, albite 4-20%, quartz 4-20%, polishing slag 0-15%; (2) A refractory backing plate is added under the green body, and at least one layer is laid between the green body and the refractory backing plate High temperature powder; (3) The green body is heated from normal temperature to 800°C; (4) The green body is slowly heated from 800°C to 1000°C, the heating time is t2 40-90min, and the temperature is kept at 1000°C. The time is t3 20-30min; (5) the green body is heated from 1000 ℃ to the temperature T, and the temperature T is 1150-1250 ℃; (6) the temperature is naturally cooled from the temperature T to the normal temperature. The method of the invention has the advantages of simple firing steps, short firing time, energy saving and good thermal insulation brick performance.

Description

technical field [0001] The invention relates to the field of thermal insulation materials, in particular to a firing process of lightweight thermal insulation bricks used for thermal insulation of exterior walls and thermal insulation of indoor heat 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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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