Modular wallboard sintering production process

Abstract

The invention relates to a modular wallboard sintering production process. The process comprises the following steps that firstly, construction waste is selected and ground into powder of 60-200 meshes for later use, coal cinder is ground into powder of 200-300 meshes for later use, argil accounting for 30%-50% of the total mass is added after the construction waste powder and the coal cinder powder are mixed according to the weight ratio of 3:5-2:3, a proper amount of water is gradually added while stirring to prepare a mixture with the water content of 14%-16%, the mixture is guided into anaging tank to be aged for 7 days, and a wallboard water blank is made through an extruder, wherein the construction waste is concrete blocks, stone, gravel or waste bricks; secondly, the wallboard water blank is moved to a prefabricated bracket to be dried in shade and is fed into a drying chamber to be primarily dried, and then a wallboard dry blank is made; and thirdly, the wallboard dry blank and the prefabricated bracket are jointly fed into a tunnel kiln to be sintered, and a wallboard finished product is made. According to the scheme, first supporting rolling rods can roll freely and canassist the wallboard dry blank in internal stress release, and therefore the situation that the wallboard dry blank has cracks or a special-shaped surface in the dewatering and drying process is prevented.

Description

Technical field[0001]The invention relates to the manufacturing field of modular wallboards, in particular to a sintering production process for modular wallboards.Background technique[0002]In the manufacturing process of sintered wallboard, firstly, the wet embryo wallboard is made by extrusion, and then the wet embryo wallboard is placed on the bracket to dry in the shade, and then sent to the drying room for drying, and finally into the tunnel kiln for sintering;[0003]The wet embryo will lose a lot of water during the drying and sintering process, and its size will be shortened by 6%-10% due to the loss of water. At present, the wet embryo wallboard is usually placed flat or standing during the dry, drying and sintering process. Or placed in a cross stack;[0004]When it is laid flat, when the dry wallboard is dehydrated and the size shrinks, it is attached to the placing bracket, which is very easy to crack, and when it is laid flat, the bottom surface of the wallboard is in conta...

AI Technical Summary

Problems solved by technology

[0004] When laying flat, when the wallboard dry billet is dehydrated and shrinks in size, it will be attached to the placement bracket, which is prone to cracking, and when laying flat, the bottom surface of the wallboard is in contact with the kiln car, and it cannot be completely burned during the firing process. , forming a large area of ​​dark spots affects the ap

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