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Foamed flue gas desulfurization gypsum heat-preservation plate based on foamed glass waste

A technology of desulfurized gypsum and foam glass, applied in the field of building insulation materials, to achieve the effects of low production costs, reduced construction costs, and reduced pollution

Pending Publication Date: 2018-10-16
JIAXING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Based on the above-mentioned problems, the present invention provides a foamed desulfurized gypsum insulation board based on foam glass waste in order to solve the problems existing in the recycling of existing foam glass scraps and thermal power plant desulfurization gypsum and fly ash. Carry out resource treatment and utilization, improve the greenness of inorganic light materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Prepare board raw materials according to the following parts by weight: 40 parts of non-calcined desulfurized gypsum, 20 parts of fly ash, 40 parts of mineral powder, 0.25 parts of foaming agent, 6 parts of foam glass scraps, 20 parts of steel slag, 70 parts of water, and 2w / w of lime % and water reducing agent 0.5w / w% and early strength agent 2w / w%; foaming agent is YS-15 foaming agent, foam glass scraps, particle size is 5 ~ 20mm, water reducing agent is polycarboxylic acid Water reducing agent, the early strength agent is aluminum sulfate.

[0027] The preparation method is as follows:

[0028] 1) According to the weight ratio, add 40 parts of non-calcined desulfurization gypsum, 20 parts of fly ash, 40 parts of mineral powder, 20 parts of steel slag, lime 2w / w% and early strength agent 2w / w% to the planetary cement mortar in sequence In a blender, stir for 30s;

[0029] 2) Break the discarded foam glass into lightweight aggregates with a particle size of 5-20 mm, ...

Embodiment 2

[0035] Prepare board raw materials according to the following parts by weight: 40 parts of non-calcined desulfurized gypsum, 20 parts of fly ash, 40 parts of mineral powder, 0.25 parts of foaming agent, 12 parts of foam glass scraps, 20 parts of steel slag, 70 parts of water, and 2w / w of lime % and water reducing agent 0.5w / w% and early strength agent 2w / w%; foaming agent is YS-15 foaming agent, foam glass scraps, particle size is 5 ~ 20mm, water reducing agent is polycarboxylic acid Water reducing agent, the early strength agent is aluminum sulfate.

[0036] The preparation method is as follows:

[0037] 1) According to the weight ratio, add 40 parts of non-calcined desulfurization gypsum, 20 parts of fly ash, 40 parts of mineral powder, 20 parts of steel slag, lime 2w / w% and early strength agent 2w / w% to the planetary cement mortar in sequence In a blender, stir for 30s;

[0038] 2) Break the discarded foam glass into lightweight aggregates with a particle size of 5-20 mm,...

Embodiment 3

[0044] Prepare board raw materials in parts by weight as follows: 40 parts of non-calcined desulfurization gypsum, 20 parts of fly ash, 40 parts of mineral powder, 0.25 parts of foaming agent, 12 parts of foam glass scraps, 70 parts of water, lime 2w / w% and water reducing agent 0.5w / w% and early strength agent 2w / w%; foaming agent is YS-15 type foaming agent, foam glass scrap, particle size is 5 ~ 20mm, water reducing agent is polycarboxylate water reducing agent , The early strength agent is aluminum sulfate.

[0045] The preparation method is as follows:

[0046] 1) According to the weight ratio, add 40 parts of non-calcined desulfurization gypsum, 20 parts of fly ash, 40 parts of mineral powder, 20 parts of steel slag, lime 2w / w% and early strength agent 2w / w% to the planetary cement mortar in sequence In a blender, stir for 30s;

[0047] 2) Break the discarded foam glass into lightweight aggregates with a particle size of 5-20 mm, then soak in water for 1 hour, take it o...

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Abstract

The invention discloses a foamed flue gas desulfurization gypsum heat-preservation plate based on foamed glass wastes. The foamed flue gas desulfurization gypsum heat-preservation plate consists of the following components in parts by weight: 40 parts of flue gas desulfurization gypsum, 20 parts of coal ash, 0-40 parts of ore powder, 0.25-0.5 part of a foaming agent, 0-12 parts of foamed glass leftovers, 0-40 parts of steel slag, 70 parts of water, 2 parts of lime, 0.5-1 part of a water reduction agent and 2 parts of an early strength agent. Waste foamed glass is crushed, screened and graded into artificial light aggregate of different particle sizes, and is mixed with a flue gas desulfurization gypsum based foamed concrete blank to prepare a heat-preservation plate. The foamed flue gas desulfurization gypsum heat-preservation plate disclosed by the invention has a heat conduction coefficient of 0.06-0.09w / m*k, pressure strength up to 0.5MPa or greater and a drying apparent density of310-450kg / m<3>. According to the foamed flue gas desulfurization gypsum heat-preservation plate, the waste foamed glass and wastes such as flue gas desulfurization gypsum and coal ash in thermal powerplants are turned into effective resources and are recycled, in addition, a production process is energy-saving and environmentally friendly, environment pollution can be reduced, meanwhile, types ofenergy-saving heat-preservation wall materials can be enriched, and the environmental-friendly degree of an inorganic light material can be increased.

Description

technical field [0001] The invention relates to a building insulation material, in particular to a desulfurized gypsum-based foam insulation board using waste foam glass and a preparation method thereof. Background technique [0002] At present, foam glass is widely used in domestic and foreign buildings because of its excellent thermal insulation performance. However, in the production process, a large amount of discarded foam glass scraps will be generated due to cutting and other reasons. According to the survey, there have been 700,000 m3 of waste foam glass produced by foam glass enterprises in Jiaxing City. 3 , it is conceivable that the amount of waste generated by my country's foam glass enterprises is huge, which not only causes great environmental pollution and waste of resources, but also increases the cost of enterprises. Therefore, at present, it is an urgent problem to be solved at present to recycle waste foam glass scraps and how to utilize these wastes aga...

Claims

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Application Information

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IPC IPC(8): C04B28/14C04B38/10C04B111/40
CPCC04B28/144C04B2111/00017C04B2111/40C04B2201/20C04B2201/32C04B2201/50C04B18/08C04B18/141C04B14/24C04B18/142C04B22/064C04B22/148C04B38/10C04B2103/302
Inventor 薛力梨
Owner JIAXING UNIV
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