A water reducing agent mixing device and a gypsum slurry conveying device

Abstract

The invention discloses a gypsum slurry conveying device, which comprises a cylinder body, a layered pipe body, and a foaming pipe network. Stirring device for extrusion and dredging. A liquid mixing device for injecting water reducing agent into the innermost chamber of the layered pipe body is installed on the layered pipe body. The horizontal stirring device output after differential speed stirring, the bottom of the cylinder is equipped with an output pipe; the mixing device of the water reducer includes a main body, a liquid discharge seat, a partition is arranged between the two liquid discharge seats, and the main body is connected There is a liquid inlet pipe. The present invention overflows the gypsum slurry entering the cylinder layer by layer through the layered pipe body, and replaces the theoretically excessive mixing water by adding a water reducing agent in the center, and independently discharges it through the output pipe. The performance of the superplasticizer is fully utilized, and at the same time, its influence on the initial and final setting prolongation, which is not conducive to high-speed production, is effectively eliminated.

Description

technical field [0001] The invention relates to the technical field of gypsum board production, in particular to a water reducing agent mixing device and a gypsum slurry conveying device. Background technique [0002] In the production process of gypsum board, the theoretical water consumption of hemihydrate gypsum hydration is 0.186. The moisture evaporates during the drying process of the gypsum board, resulting in more open pores in the gypsum board. The open pores caused by the evaporation of water vapor in the gypsum board lead to poor lap density of gypsum crystals, reduced strength and toughness of the gypsum board, and poor water resistance of the board. The water reducer is a surfactant, which can disperse the gypsum particles, improve the workability and fluidity of the gypsum slurry, and reduce the amount of gypsum hydration mixing water while ensuring the fluidity of the gypsum slurry. The addition of water reducing agent can reduce the amount of mixing water u...

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Problems solved by technology

[0003] The object of the present invention is to provide a water reducing agent adding device and a gypsum slurry conveying device to solve the problem that in the prior art, in the production process of the paper-faced gypsum board, more than the theoretical amount of mixing water is often added, and the redundant The mixing water evaporates during the later drying process, resulting in more open pores in the gypsum board. The open pores caused by the evaporation of water vapor in the gypsum board lead to poor compactness of the gypsum crystal overlap, the strength and toughness of the gypsum board are reduced, and the board is water resistant. Poor technical issues

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