Water-resisting gypsum board production system and production method

Abstract

The embodiment of the invention discloses a water-resisting gypsum board production system and production method. The system comprises a mixing device, a gypsum adding device communicating with a feeding opening of the mixing device, a waterproof agent adding device, a clear water adding device, a machining aid adding device and a surface active agent adding device communicating with a dischargingopening of the mixing device, wherein the gypsum adding device, the waterproof agent adding device, the clear water adding device and the machining aid adding device communicate with a feeding opening of the mixing device. The gypsum adding device comprises a gypsum bearing cavity and a heating assembly arranged on the outer side of the gypsum bearing cavity and used for heating the gypsum bearing cavity, the bottom end of the gypsum bearing cavity communicates with the feeding opening, the top end of the gypsum bearing cavity communicates with the bottom face of the mixing device through a steam collection unit, and the steam collection unit is used for carrying out bottom blowing on mixed materials in the mixing device. The discharging opening at least comprises a discharging port and afeed port, and the surface active agent adding device communicates with the feed port. The effects that material agglomeration is avoided, mixed material even dispersity is good, bubbles of preparedgypsum boards are fine and dense, and water resistance is effectively improved are achieved.

Description

technical field [0001] The embodiments of the present invention relate to the field of gypsum board production technology, in particular to a water-resistant gypsum board production system and production method. Background technique [0002] Water-resistant gypsum board is made of building gypsum as the main raw material, and a certain amount of water-repellent and surfactant and other additives are added to the gypsum core material to make the gypsum itself have a certain waterproof performance. [0003] In the production process of gypsum board, the added raw material is mainly plaster of paris, and plaster of paris is easy to absorb water and get damp under normal conditions, so it is often not easy to store. In the actual production process, it is often necessary to dry it again before use. High-temperature dehydration is not only cumbersome to operate, which reduces production efficiency, but also consumes a lot of energy during the high-temperature dehydration process,...

AI Technical Summary

Problems solved by technology

[0003] In the production process of gypsum board, the added raw material is mainly plaster of paris, and plaster of paris is easy to absorb water and get damp under normal conditions, so it is often not easy to store. In the actual production process, it is often necessary to dry it again before use. High temperature dehydration, not only the operation is cumbersome, which reduces the production efficiency, but also the energy loss in the high temperature dehydration process is large, which further increases the production cost

At the same time, water repellent and surfactant need to be added in the production process of gypsum board, but the conventional method is to directly mix the two with gypsum and water and mix them in the mixing device, because the two are generally hydrophobic The water agent or the structure contains lipophilic groups, so it is easy to repel water during the mixing process, resulting in the agglomeration of the water repellent and the surfactant itself, and the final materials in the gypsum slurry are evenly dispersed. Poor performance, resulting in unstable plate quality

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