Preparation method of lightweight water-resistant paperbacked gypsum board

A paper-faced gypsum board, light-weight technology, applied in the field of board processing, can solve problems such as waste of resources, deterioration of the site environment, etc., achieve the effects of reducing weight, solving environmental problems, and improving water resistance

Active Publication Date: 2015-01-07
PINGYI BEIXIN BUILDING MATERIAL CO LTD
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  • Description
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Problems solved by technology

[0003] The gypsum board production line of BNBM’s Tieling branch uses coal combustion in fluidized bed furnaces for heating, and uses electric precipitators to remove dust from the hot fumes. The collected powder is fly ash produced by coal combustion. The continuous production of the factory produces about 4.8 fly ash per day. tons, long-term stacking causes deterioration of the site environment and waste of resources

Method used

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  • Preparation method of lightweight water-resistant paperbacked gypsum board
  • Preparation method of lightweight water-resistant paperbacked gypsum board

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Embodiment Construction

[0024] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0025] The present invention provides as attached figure 1 Shown is a kind of preparation method of lightweight water-resistant gypsum board, at least comprising the following steps:

[0026] a) Dispersing and frying the desulfurized gypsum to make mature gypsum powder;

[0027] b) fully mixing fly ash and plaster powder, and performing grinding modification to obtain clinker;

[0028] c) The clinker is mixed with water, foaming agent, hydrogenated silicone oil, modified starch, STMP powder, and paper fiber, and fully stirred to obtain a uniform slurry;

[0029] d) The slurry is poured continuously between two layers of protective paper, and is extruded to obtain a wet gypsum...

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Abstract

The invention provides a preparation method of a lightweight water-resistant paperbacked gypsum board. The preparation method at least comprises the following steps of (a) scattering desulfurized gypsum, and carrying out stir-frying to obtain calcined gypsum powder; (b) sufficiently mixing coal ash and the calcined gypsum powder, grinding and modifying to obtain clinker; (c) mixing water, a foaming agent, hydrogenated silicon oil, modified starch, STMP powder and paper fibers into the clinker, and sufficiently stirring to obtain uniform slurry; (d) continuously pouring the slurry between two layers of surface protective paper, and carrying out extrusion molding to obtain a wet gypsum board; and (e) solidifying the wet gypsum board, cutting off, drying, and sawing edges to obtain a finished product of the paperbacked gypsum board. The preparation method has the advantages that the aim of comprehensively utilizing resources is achieved, and the prospects of low carbon, energy saving and environment protection of a novel building material are realized. The weight of the unit area of a water-resistant board is reduced, the production cost is reduced, and the water resistance and strength of the board are improved.

Description

technical field [0001] The invention belongs to the technical field of plate processing, and in particular relates to a method for preparing a lightweight water-resistant paper-faced gypsum board. Background technique [0002] Ordinary paper-faced gypsum boards are easy to absorb water, and their strength is greatly reduced after absorbing water. It is convenient for construction and has poor practical performance. The requirements for water resistance and weight reduction of plasterboard in building construction are getting higher and higher. [0003] The gypsum board production line of BNBM’s Tieling Branch uses fluidized-bed furnaces to burn coal for heating, and uses electric precipitators to remove dust from the hot fumes. The collected powder is fly ash produced by coal combustion. The continuous production of the factory produces about 4.8% fly ash per day. Tons, long-term stacking will cause deterioration of the site environment and waste of resources. Therefore, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/02C04B28/14
Inventor 唐大勇何浩王永生王波汪朋裴旭王慧刚辛伟冯亮
Owner PINGYI BEIXIN BUILDING MATERIAL CO LTD
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