Production process of sintered wallboard

Abstract

The invention discloses a production process of a sintered wallboard, and relates to the field of modular wallboard manufacturing, the production process comprises seven steps of raw material preparation, wallboard preparation, surface spraying, vertical stacking, low-temperature drying, high-temperature drying and finished product sintering, starting from extrusion of a wet blank wallboard, the wallboard begins to be dehydrated and shrunk to different degrees; the wet blank wallboard is subjected to surface spraying, vertical stacking, low-temperature drying and high-temperature drying in the pre-drying chamber, air convection drying can be carried out by exhausting air through a corresponding exhaust fan in the pre-drying chamber within a constant temperature range, and internal stress release of the wet blank of the wallboard can be assisted; the situation that the wall board water blank cracks or has a special-shaped surface in the dewatering and drying process is prevented, and the flatness and integrity of the wall board can be guaranteed.

Description

technical field [0001] The invention belongs to the field of module wallboard manufacturing, in particular to a production process of a sintered wallboard. Background technique [0002] In the manufacturing process of sintered wallboard, firstly, it is extruded through a brick machine to make wet green wallboard, and then the wet green wallboard is placed on the kiln car to allow the outside temperature and humidity to change and naturally dry and shape, and then directly sent to the tunnel drying kiln. Internal drying, and finally sintered in a tunnel roasting kiln; at present, the common drying process is mainly to use natural shade drying and tunnel drying kiln for drying; Uncontrolled loss of a large amount of water, at the same time, due to the loss of water, its size will also be shortened and the green body is prone to cracking and deformation; [0003] The longer the size of the fired wallboard, the higher the incidence of the above-mentioned defects. How to solve t...

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Problems solved by technology

[0002] During the manufacturing process of sintered wallboard, firstly, it is extruded by a brick machine to make a wet billet wallboard, and then the wet billet wallboard is placed on the kiln car to let the outside temperature and humidity change, and after it is naturally dried in the shade, it is directly sent to the tunnel drying kiln It is dried inside and finally sintered in a tunnel roasting kiln; the current common drying process is mainly to use natural shade drying and tunnel drying kiln for drying; but the wet embryo will be dried in the natural shade and entering the tunnel drying kiln for drying and shaping Uncontrolled loss of a large amount of water, at the same time, due to water loss, its size will also be shortened and the green body will be easily cracked and deformed;

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