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Preparation method of foam glass

A foam glass and waste glass technology, which is applied in the field of foam glass preparation, can solve the problems of reducing the cost of products from solid waste, and achieve the effects of being beneficial to environmental protection, promoting utilization, and having a simple preparation process.

Inactive Publication Date: 2008-01-30
内蒙古自治区建筑材料工业科学研究设计院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional production methods fail to rationally utilize solid waste to reduce product costs and promote environmental protection

Method used

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  • Preparation method of foam glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment 1: Take the preparation of 100kg mixed powder as an example. Crush and mix 25kg of fly ash and 60kg of waste glass evenly. After grinding for 4 hours to reach 200 mesh, add 7kg of calcium carbonate, 2kg of potassium nitrate, 1kg of sodium nitrate, 2kg of sodium carbonate, 1kg of lithium carbonate, 1.6kg of water glass, fiber The powder is 0.4kg, after adding additives, the powder is put into the mold, dried and fired, the firing temperature is controlled at 780°C-820°C, kept for 1-2 hours, quickly cooled to 600°C, and the annealing temperature is 550°C to room temperature After 10 hours, it was annealed and cooled to room temperature, and sent to be cut and shaped.

Embodiment 2

[0012] Embodiment 2: Take the preparation of 100kg mixed powder as an example. Crush and mix 22kg of fly ash and 66kg of waste glass evenly, grind to 200 mesh for 4 hours, add 5kg of calcium carbonate, 1kg of potassium nitrate, 2kg of sodium nitrate, 1kg of sodium carbonate, 1kg of lithium carbonate, 1.5kg of water glass, and 0.5 kg of cellulose kg, mixed evenly into a mold, dried and fired in a kiln, the firing temperature is controlled at 760°C to 810°C, kept for 1.5 to 3.0 hours, quickly cooled to 580°C, annealed and cooled to room temperature, and sent to be cut and shaped.

Embodiment 3

[0013] Embodiment 3: Take the preparation of 100kg mixed powder as an example. Crush and mix 20kg of fly ash and 70kg of waste glass, grind them to 200 mesh, add 3kg of calcium carbonate, 1.3kg of potassium nitrate, 1.7kg of sodium nitrate, 1.5kg of sodium carbonate, 0.5kg of lithium carbonate, 1kg of water glass, and 1kg of cellulose , mixed evenly into the mold for molding, dried and fired in a kiln (high temperature furnace), the firing temperature is controlled at 750°C to 800°C, kept for 1.5 to 2.5 hours, quickly cooled to 580°C, annealed and cooled to room temperature, and sent for cutting and molding .

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Abstract

The invention discloses a foam glass and a preparation method thereof. The main technique steps are that fly ash and waste glass are mixed and rubbed; the promoters composited by calcium carbonate, potassium nitrate, sodium nitrate, sodium carbonate, lithium carbonate, water glass and fibrin are added; the powder that has been rubbed into mould to mold is put; shaped product is sent to kiln to be dried and fired under high temperature, is annealed and finally cut, after the steps, the foam glass is made. The preparation technique is simple, and the production cost is reduced by choosing fly ash and waste glass instead of pearl rock, pumice, isinglass and other non-mine material, and the technique improves the use of solid wastes and is beneficial to environment protection.

Description

technical field [0001] The invention relates to a method for preparing foam glass, in particular to a method for preparing foam glass with fly ash and waste glass as main raw materials. Background technique [0002] Foam glass is a thermal and sound insulation material with excellent comprehensive properties. It has the characteristics of small capacity, low thermal conductivity, low water absorption, acid and alkali resistance, high temperature resistance, and easy processing. It is widely used in industrial and civil fields and is one of the most promising functional materials in the 21st century. [0003] At present, the production of foam glass generally uses perlite, pumice, volcanic ash, mica, etc. as the main raw materials, and is manufactured through batching, molding, firing (foaming), annealing, cutting and molding. However, traditional production methods fail to rationally utilize solid waste to reduce product costs and promote environmental protection. Content...

Claims

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Application Information

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IPC IPC(8): C03C11/00
Inventor 刘耀利刘林俊乌日娜彭飞
Owner 内蒙古自治区建筑材料工业科学研究设计院
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