Method for reducing water absorption of water-resistant paper-faced gypsum board and device for preparing mixed slurry

A technology for preparing equipment and mixing slurry, which is applied in the direction of clay preparation equipment, surface layering equipment, cement mixing equipment, etc., can solve the problems of lacking and reducing the water absorption rate of water-resistant gypsum boards, and achieve the effects of reducing water absorption and avoiding waste

Active Publication Date: 2022-03-25
北新建材(陕西)有限公司
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for reducing the water absorption of water-resistant gypsum board and a mixed slurry preparation device to solve the technical problem of the lack of a method for reducing the water absorption of water-resistant gypsum board while reducing the amount of silicone oil in the prior art

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  • Method for reducing water absorption of water-resistant paper-faced gypsum board and device for preparing mixed slurry
  • Method for reducing water absorption of water-resistant paper-faced gypsum board and device for preparing mixed slurry
  • Method for reducing water absorption of water-resistant paper-faced gypsum board and device for preparing mixed slurry

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[0041] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0042] The invention provides a method for reducing the water absorption rate of a water-resistant gypsum board, comprising the following steps:

[0043] S100, dispersing and frying the desulfurized gypsum to prepare mature gypsum powder;

[0044] S200, fully mixing cement and plaster of paris to obtain clinker;

[0045] S300, the clinker is mixed with water, foaming agent and hydrogenated silicone oil, and fully stirred to obtain a ...

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Abstract

The invention discloses a method for reducing the water absorption rate of a water-resistant paper-faced gypsum board and a mixed slurry preparation device, comprising the following steps: S100, breaking up and frying the desulfurized gypsum to prepare mature gypsum powder; S200, fully mixing the cement and the cooked gypsum powder Mix to prepare clinker; S300, mix the clinker with water, foaming agent, and hydrogenated silicone oil, and fully stir to prepare a uniform mixed slurry; S400, continuously pour the slurry between two layers of protective paper , the gypsum board wet board is obtained through extrusion molding; S500, the gypsum board wet board is solidified, cut, dried, and edge-sawed to obtain a paper-faced gypsum board product. The present invention changes the properties of the original gypsum by adding cement to the fried gypsum according to a certain proportion after frying the gypsum and mixing them uniformly. The addition of cement can effectively form a dense network structure and reduce the water absorption rate of the gypsum board. , so that there is no need to add too much silicone oil, so as to avoid the waste of silicone oil.

Description

technical field [0001] The invention relates to the technical field of gypsum board production, in particular to a method for reducing the water absorption rate of a water-resistant gypsum board and a device for preparing mixed slurry. Background technique [0002] Water-resistant gypsum board is a lightweight building board made of building gypsum as the main raw material, mixed with an appropriate amount of silicone oil to form a water-resistant board core, and firmly bonded with water-resistant protective paper. Water resistance. In the production process of water-resistant gypsum board, the silicone oil and mixed water are emulsified by the emulsification pump and enter the mixer. The water-resistant boards produced in this way often fail to meet the requirements of qualified products. In order to make the water absorption rate of the finished board meet the requirements of qualified products, it is necessary to use a large amount of silicone oil. When the amount of si...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/14C04B38/00C04B40/00B28C5/00B28B19/00
CPCC04B28/144C04B40/0028B28C5/003B28B19/0015C04B2111/0062C04B7/00C04B24/42C04B2103/42C04B38/00
Inventor 郑晨涛闫友静张海鹏王虎
Owner 北新建材(陕西)有限公司
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