Environment-friendly porcelain tile made from sewage squeezing mud

Abstract

An environment-friendly porcelain tile made from sewage squeezing mud comprises main materials of 60-80% of sewage squeezing mud, 5-20% of quartz sand, 5-10% of spodumene, 5-10% of sodium sand, 3-8% of Zhongshan black mud, 0.3-0.5% of calgon, 0.1-0.3% of sodium citrate, and 0.2-0.3% of polyethylene glycol. The main raw materials comprise chemical components of, by weight, 63.6-67.6% of SiO2, 2.7-4.7% of CaO, 0.2-0.6% of P2O5, 14.6-19.6% of Al2O3, 0.9-1.1% of MgO, 0.78-1.0% of Li2O, 0-1.5% of Fe2O3, 2.0-5.0% of K2O, 0.1-0.5% of BaCO3, 0-0.5% of TiO2, 1.5-5.0% of Na2O and 4.5-7.5% of NaOH. The technology comprises steps of: sewage purifying treatment, squeezing mud entering the warehouse, ingredient ball milling, slurry detection, spray granulation, blank moulding, blank drying, glaze burdening, glaze grinding, glaze detection, glazing, high temperature sintering, detecting of physical and chemical performances, finished product sorting, finished product sampling observation and packaging for entering warehouse. In the invention, the two liquefaclents of calgon and sodium citrate and a blank material plasticizer polyethylene glycol are added 2 h before discharging form the mill.

Description

technical field [0001] The invention relates to a ceramic tile, in particular to an environment-friendly porcelain tile manufactured by pressing mud from sewage. Background technique [0002] Porcelain tiles have strong adaptability, high density, various varieties, rich designs and colors, good decorative effect, easy maintenance, and smooth surface like a mirror. It is getting closer and closer to nature and lifelike, and is favored by consumers. [0003] In the prior art, the well-known porcelain tiles for architectural decoration are made of raw ore, ore and raw ore clay, and are manufactured through a certain proportion of formula. This method needs to mine a large amount of ore and sand from the mountain. Environmental damage is greater. [0004] However, the current method of using waste mud to produce antique bricks, because the waste mud has complex components and also contains flocculant-polyacrylamide, after adding water and ball milling, the mud is in the form ...

AI Technical Summary

Problems solved by technology

[0006] 1. Because this method is only dry mixing and homogenization of 10-mesh large particles, it is impossible to add other raw materials and additives to the waste sludge for slurry batching ball milling for its lack of performance. The composition and performance are limited, and the application range is greatly restricted. limit;

[0007] 2. The blank is processed with crushed waste mud, there are no spherical particles in the powder, the fluidity is poor, and interlayers are easy to occur during forming;

[0008] 3. Waste mud is the product of sewage treatment. Without ball milling and spraying treatment, paper scraps and oil stains in the mud cannot be completely removed, and the fired product will have defects such as blisters and black hearts.

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