Sintering flux for solid waste sintered porous heat insulation sheets, and preparation method and application thereof

Abstract

The invention relates to a sintering flux for solid waste sintered porous heat insulation sheets, and a preparation method and an application thereof. The sintering flux comprises a rapid fluxing component, a stable fluxing component and a mild fluxing component; a mass ratio of the rapid fluxing component to the stable fluxing component is 0.5-2:1, and a mass ratio of the mild fluxing component to the stable fluxing component is 0.5-2:1; and the rapid fluxing component is borax, the stable fluxing component is glass powder, and the mild fluxing component is one or two of perlite and feldspar. The invention also provides the preparation method and the application of the sintering flux for solid waste sintered porous heat insulation sheets. The flux is added in the sintering process of the sintering flux for solid waste sintered porous heat insulation sheets to decrease the sintering temperature by 50-150DEG C, a large amount of waste mine tailings and industrial waste residues are used, and the utilization rate reaches 80%, so environment protection is facilitated, resources are saved, and waste discharge is reduced.

Description

technical field

[0001] The invention belongs to the technical field of solid waste utilization, and relates to a firing flux for solid waste sintered porous insulation boards, a preparation method and application. Background technique

[0002] Tailings are the waste after beneficiation and the main component of industrial solid waste. Over 10 billion tons of metal mines, non-metal mines, coal, clay, etc. are mined every year by countries all over the world, and the amount of tailings discharged is about 5 billion tons. According to incomplete statistics, there are more than 150 kinds of minerals discovered in my country at present, and the development and establishment More than 8,000 mines have been built, with a cumulative production of 5.97 billion tons of tailings, covering an area of ​​80,000 hm 2 above, and is still growing at a rate of 300 million tons per year. For a long time, most of the tailings have been stacked in the open air, which not only occupies a large a...

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