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A kind of production method of gypsum board with retarder added

A paper-faced gypsum board and production method technology, applied in covering/lining, construction, building construction, etc., can solve the problems of production line capacity and product quality constraints, unsatisfactory retarder effect, too much influence on the strength of gypsum board, etc. , to achieve the effect of increasing production capacity

Active Publication Date: 2021-02-05
泰山石膏(辽宁)有限公司
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] The effect of traditional retarders is not ideal or the impact on the strength of gypsum board is too great, and the production capacity and product quality of the production line are severely restricted

Method used

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  • A kind of production method of gypsum board with retarder added

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021]Retarder preparation: the content of bone glue, surfactant, and sodium tripolyphosphate are 0.02%, 0.03%, and 0.01% of the gypsum material (mass ratio).

[0022]Device settings:

[0023]A level gauge 5 is installed on the retarder stock tank 1 and a retarder stock pump 2 is installed in the lower part of the retarder stock tank 1 through a pipeline, and passes through the retarder stock pipeline 3 and a static mixer 4 is connected, the static mixer 4 is connected with the mixer 6. A discharge port 7 is provided in the lower part of the mixer 6, and the retarder is transported to the bottom paper 9 of the face protection paper through the discharge port 7 to contact and fuse with the gypsum slurry 11. The upper part of the gypsum slurry 11 is equipped with an on-line detection device 12 for fluidity. The gypsum slurry 11 is transported forward through the solidification belt 13. A pressure roller 10 is installed on the upper part of the gypsum slurry 11, and the cover paper 8 is cove...

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Abstract

The invention proposes a method for producing a paper-faced gypsum board added with a retarder. After retarder preparation, equipment setting and gypsum board production process, the production of gypsum board with retarder is completed. The invention has the advantages of (1) realizing the automatic adjustment of the solidification time of the slurry (2) controlling the growth of gypsum crystals more reasonably (3) improving the adaptability to building gypsum (4) solving the restriction of the solidification time on production, Increased productivity. Through online detection of slurry fluidity, initial strength, and medium-term strength, the amount of retarder can be adjusted in real time to meet production needs. It is suitable for the production method of gypsum board with retarder added.

Description

Technical field[0001]The invention belongs to a method in the field of building material gypsum board production, in particular to a production method of gypsum board added with a retarder.Background technique[0002]Gypsum board is a widely used construction and decoration material, which has the characteristics of light weight, sound insulation, high strength and fast construction speed. Among them, the preparation of the slurry is an extremely important part. The setting time of the slurry not only affects the quality of gypsum board, but also restricts the productivity of the production line.[0003]Traditional retarders have unsatisfactory effects or have too much influence on the strength of gypsum board, and the production line capacity and product quality are severely restricted.[0004]Based on this situation, there is an urgent need for a retarder and a production method that has a good retardation effect and has a small impact on the strength of gypsum board.Summary of the inve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/14E04F13/075
CPCC04B28/14C04B2111/0062E04F13/072C04B24/14C04B22/16C04B2103/40
Inventor 张伟杨伟吕振涛吕杨王锐
Owner 泰山石膏(辽宁)有限公司
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