Preparing method of granular powder lot used for molding magnesian products

Abstract

The invention provides a preparing method of granular powder lot used for molding magnesian products. The preparing method comprises the first step of preparing materials, the second step of precuring and the third step of prilling, wherein, the first step comprises procedures of uniformly mixing raw materials used for preparing magnesian products to prepare a sizing agent for use; the second step comprises the procedures of conducting primary curing on the sizing agent obtained in the first step to form an initial curing material; the third step comprises the procedures of conducting smashing and screening treatments on the initial curing material obtained in the second step to obtain the granular powder lot used for molding. In the prior art, a sizing agent thick liquid flowing molding method is adopted for all the molding of the magnesian products, while according to the preparing method of the granular powder lot used for molding the magnesian products, the magnesian products are prefabricated into the granular powder lot which can be molded through drying pressing, and compactness and strength of the prepared board are all improved; in addition, the powder lot can be prepared into texture materials of various kinds of colors through addition of different pigments, presupposed texture cloth materials can be achieved, and the peculiarity that the traditional sizing agent thick liquid flowing molding texture is uncontrollable is changed.

Description

technical field [0001] The invention relates to the field of inorganic materials, in particular to a method for preparing granular powder for molding magnesite products. Background technique [0002] Magnesite material is magnesite cement, which is a pure inorganic adhesive material. It has excellent properties such as environmental protection, non-toxic, radiation-free, fire resistance, aging resistance, acid and alkali resistance. Widely used in the preparation of environmentally friendly building materials. [0003] However, the current magnesite products on the market are prepared by slip injection molding, rolling, extrusion, etc., and the existing slip injection molding method is difficult to realize due to the limitation of the fluidity of the slurry and the single preparation process. The pattern, pattern and color change design of magnesite products often limit the diversity of the pattern and texture of magnesite products, the controllability of the texture of the...

AI Technical Summary

Problems solved by technology

[0003] However, the current magnesite products on the market are all prepared by slip injection molding, rolling, extrusion, etc., and the existing slip injection molding method is difficult to realize due to the limitation of the fluidity of the slurry and the single preparation process. The pattern, pattern and color change design of magnesite products often limit the diversity of the pattern, color and texture of magnesite products, the controllability of the texture of the products is not high, and the quality of magnesite products fluctuates greatly, so The prepared magnesite products have low volume density, uneven hardness, low flexural strength and high water absorption, which cannot meet the needs of consumers for magnesite products