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Method for preparing foam glass and foam glass

A foam glass, broken glass technology, applied in glass molding, glass manufacturing equipment, manufacturing tools, etc., to improve grinding efficiency, shorten the time required for grinding, and ensure safety.

Active Publication Date: 2021-07-20
中节能工程技术研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are few reports on the utilization of glassy products obtained from hazardous waste through fusion vitrification technology

Method used

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  • Method for preparing foam glass and foam glass
  • Method for preparing foam glass and foam glass
  • Method for preparing foam glass and foam glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Ingredients:

[0032] The ingredients are proportioned, 45wt% vitrified product, 45wt% broken glass, 6wt% borax, 3wt% limestone, 1wt% waste graphite electrode, and the total amount is 100wt%.

[0033] The particle sizes of various raw materials are: vitrified product 3-10mm; broken glass 5-10mm; borax less than 1mm; limestone 5-10mm; waste graphite electrode 5-15mm.

[0034] (2) Grinding treatment:

[0035] First put the limestone and waste graphite electrodes into the ball mill, grind 1.5, the particle size is controlled to 200 mesh and account for more than 80%, then put the broken glass into the ball mill, grind for 0.5h, and finally put the molten vitrified product of hazardous waste and borax into the ball mill, and then grind 1.5h.

[0036] (3) Molding and flattening:

[0037] Put the fully ground mixture into a heat-resistant steel mold, and press it to a level of 0.6MPa.

[0038] (4) Melt foaming:

[0039] Put the mould containing the mixed material int...

Embodiment 2

[0043] (1) Ingredients:

[0044] The ingredients are proportioned, 50wt% vitrified product, 35wt% broken glass, 10wt% borax, 3wt% limestone, 2wt% waste graphite electrode, and the total amount is 100wt%.

[0045] The particle sizes of various raw materials are: vitrified product 3-10mm; borax less than 1mm; limestone 5-10mm; waste graphite electrode 5-15mm.

[0046] (2) Grinding treatment:

[0047] First put the limestone and waste graphite electrodes into the ball mill, grind for 2 hours, the particle size is controlled to 200 mesh, accounting for more than 80%, then put the broken glass into the ball mill and grind for 0.5 hours, and finally put the molten vitrified product and borax of the hazardous waste into the ball mill, and then grind again 1h.

[0048] (3) Molding and flattening:

[0049] Put the fully ground mixture into a heat-resistant steel mold, and press it to a level of 0.5MPa.

[0050] (4) Melt foaming:

[0051] Put the mould containing the mixed material...

Embodiment 3

[0055] (1) Ingredients:

[0056] The ingredients are proportioned, 60wt% vitrified product, 25wt% broken glass, 12wt% borax, 1wt% limestone, 2wt% waste graphite electrode, and the total amount is 100wt%.

[0057] The particle sizes of various raw materials are: vitrified product 3-10mm; borax less than 1mm; limestone 5-10mm; waste graphite electrode 5-15mm.

[0058] (2) Grinding treatment:

[0059] First put the limestone and waste graphite electrodes into the ball mill, grind 1.5, the particle size is controlled to 200 mesh and account for more than 80%, then put the broken glass into the ball mill, grind for 0.5h, and finally put the molten vitrified product of hazardous waste and borax into the ball mill, and then grind 1.5h.

[0060] (3) Molding and flattening:

[0061] The fully ground mixture is put into a heat-resistant steel mold, and pressed to be flat, and the pressure is 1.0 MPa.

[0062] (4) Melt foaming:

[0063] Put the mould containing the mixed material into...

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Abstract

The invention relates to a hazardous waste treatment technology, in particular to a method for preparing foam glass and the foam glass. The preparation method of the foam glass comprises the following steps: 1) mixing the molten vitrification product of the hazardous wastes with auxiliary materials, and grinding the materials to obtain a mixed material; 2) preparing the mixed material into a foam glass blank; 3) melting and foaming the foam glass blank at the temperature of 950-1150 DEG C to obtain a foam glass melt; and 4) cooling the foam glass melt to 500-650 DEG C within 1-3 minutes, and then annealing and cooling the glass melt to obtain the foam glass. In the invention, a hazardous waste molten vitrification product is taken as a main material, and the prepared foam glass has excellent performances of heat insulation, fire prevention, sound absorption, moisture prevention, light weight, high strength and the like, is a novel environment-friendly building material, and realizes high-value utilization of the hazardous waste molten vitrification product.

Description

technical field [0001] The invention relates to hazardous waste treatment, in particular to a method for preparing foam glass and the foam glass. Background technique [0002] At present, the waste generated by the incineration of hazardous waste with high calorific value can be divided into two categories: bottom slag and fly ash (referred to as incineration ash). The amount of incineration ash and slag is about 30% of the amount of raw materials entering the furnace, of which bottom slag is 25-30% and fly ash is 2-5%. Hazardous waste incineration ash contains heavy metals and dioxins and other pollutants. If not properly handled, it will cause serious secondary pollution to the human living environment. With the increasing shortage of safe landfill sites and the increasing cost of landfills, the melting and vitrification of hazardous wastes can completely eliminate heavy metals and dioxins in incineration ash and other polluting components, and has become a research hotsp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C6/02C03C1/02C03C11/00C03B19/08
CPCC03C1/00C03C1/002C03C1/02C03C11/007C03B19/08
Inventor 丁银贵刘风华邹结富陈士朝周立杰
Owner 中节能工程技术研究院有限公司