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A kind of blue core gypsum board and preparation method thereof

A gypsum board and gypsum powder technology, which is applied in sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of increased production cost of gypsum board, difficulty in meeting consumer demand, single variety of gypsum board, etc. Improve market competitiveness, reduce pigment costs, and protect the environment

Active Publication Date: 2020-12-22
BEIJING NEW BUILDING MATERIALS PLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the variety of gypsum boards is single, which is not only difficult to meet the needs of consumption, but also brings certain difficulties to marketing. Therefore, gypsum boards of different colors have become a market demand.
However, the use of colored organic and mineral pigments to color gypsum boards will inevitably lead to a substantial increase in the production cost of gypsum boards

Method used

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  • A kind of blue core gypsum board and preparation method thereof
  • A kind of blue core gypsum board and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The electroplating sludge powder (the content of nickel ion is 25wt%, particle diameter 0.5-100 μ m) that 3kg is dried and broken up contains nickel ion, 96.6kg gypsum powder, 0.05kg foaming agent, 0.38kg starch and 75kg water are stirred Mix and beat, combine with the upper and lower layers of protective paper, then extrude, solidify, and dry to make a gypsum board.

Embodiment 2

[0033] The electroplating sludge powder (the content of nickel ion is 25wt%, particle diameter 0.5-100 μm) that 5kg is dried and broken up contains nickel ion, 94.6kg gypsum powder, 0.05kg foaming agent, 0.38kg starch and 75kg water are stirred Mix and beat, combine with the upper and lower layers of protective paper, then extrude, solidify, and dry to make a gypsum board.

Embodiment 3

[0035] The electroplating sludge powder (the content of nickel ion is 25wt%, particle diameter 0.5-100 μm) that 7kg is dried and broken up contains nickel ion, 92.6kg gypsum powder, 0.05kg foaming agent, 0.38kg starch and 75kg water are stirred Mix and beat, combine with the upper and lower layers of protective paper, then extrude, solidify, and dry to make a gypsum board.

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Abstract

The invention discloses a blue core gypsum board and a production method thereof. The blue core gypsum board comprises 2-20 wt% of electroplating sludge containing nickel ions. The method comprises the following steps: mixing and beating the electroplating sludge containing nickel ions and gypsum powder, starch, a foaming agent and other raw materials for producing the gypsum board, combining theobtained slurry with an upper protection surface paper and a lower protection surface paper, and performing molding, curing and drying to produce the blue core gypsum board. The electroplating sludgeis used to produce the gypsum board, and heavy metals in the electroplating sludge are solidified to realize harmless recycling of solid wastes, so the environment is protected, the pigment cost in the toning process of the gypsum board is reduced, and the performances of the gypsum board are not negatively affected.

Description

technical field [0001] This application relates to but not limited to the field of inorganic building materials, in particular but not limited to a blue-core gypsum board and its preparation method. Background technique [0002] A large amount of electroplating sludge produced by the electroplating industry contains heavy metals such as Cu, Ni, Zn, Cr, Fe and a certain amount of gypsum. The loss of heavy metals in electroplating sludge will cause great harm to the environment and human health. However, electroplating sludge contains a variety of metal components, and its grade is even higher than that of metal-rich ores. Therefore, although electroplating sludge is one of the public hazards recognized at home and abroad, it is also a cheap secondary renewable resource. At present, the harmless treatment of electroplating sludge mainly adopts methods such as solidification / stabilization and resource utilization. Curing / stabilization is mainly to add some curing agent to soli...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/14C04B18/04E04C2/04
CPCC04B18/0481C04B28/14C04B2111/0062C04B2111/40E04C2/043C04B2103/0068C04B24/38C04B22/002Y02W30/91
Inventor 朱清玮王鹏起谭丹君王莹何亮王丽武发德周建中
Owner BEIJING NEW BUILDING MATERIALS PLC
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