Environmentally-friendly ceramic polished brick and low-temperature preparation method thereof

Abstract

The invention discloses an environmentally-friendly ceramic polished brick and a low-temperature preparation method thereof. The method comprises the following steps: performing sieving on ceramic polishing residues by using a 80-mesh sieve, mixing the sieved material and other raw materials, performing ball milling, performing granulation, and performing sieving to obtain raw material powder; performing dry-pressing forming on the raw material powder, and performing drying to obtain a polished brick green body; and performing firing on the green body under low-temperature condition of 850-1100 DEG C to obtain the ceramic polished brick, wherein the other raw materials include talc, feldspar, ball clay, black mud and kaolin, and the ceramic polishing residues account for 0.5-50% of a totalmass of the raw materials. According to the polished brick and method provided by the invention, the ceramic polished brick has a low firing temperature, firing foaming of the polishing residues canbe inhibited, the environmentally-friendly polished brick with high mechanical strength and a low water absorption rate can be prepared, the firing energy consumption of the polished brick can be greatly reduced, and industrial upgrading of polished brick companies can be promoted.

Description

technical field [0001] The invention relates to an environment-friendly ceramic polished tile and a low-temperature preparation method thereof. Background technique [0002] Ceramic polished tiles have high density, low water absorption, high mechanical strength, excellent antifouling, antifreeze and chemical stability, and occupy a large proportion in ceramic production. However, the production of polished tiles requires a polishing machine to trim, grind and polish the fired ceramics to meet the requirements of the shape, specification, size and finish of the polished tiles, thus producing a large amount of ceramic polishing slag. [0003] Since the polishing slag contains a small amount of SiC, MgO, MgCl 2 Impurities (mainly from the SiC abrasive and magnesium oxychloride binder of the polishing grinding head) and the polishing slag will cause serious foaming and deformation of the ceramics during firing when the polishing slag is directly recycled as ceramic raw materia...

AI Technical Summary

Problems solved by technology

In order to overcome the shortcomings of low utilization rate and high firing temperature of ceramic polishing slag in the prior art, the present invention adjusts the composition ratio of the liquid phase in the formula and adds a large amount of sintering aids such as feldspar and ball clay to make it burn at low temperature. A large amount of liquid phase can be generated under low temperature. Since the corrosion ability of low temperature liquid is relatively weak compared to SiC, it can control the foaming of polishing slag during firing and improve the utilization rate of ceramic polishing slag, effectively preparing ceramics with high mechanical strength and high water absorption rate. Low environmental protection polished tiles; the generation of a large number of low-temperature liquid phases can promote low-temperature sintering, reduce the sintering temperature, realize low-temperature firing of polished tiles, realize online direct resource utilization of polishing slag, and solve the problem that has long plagued the polished tile industry. The most critical technical problem to realize zero discharge of waste residue, with remarkable social and economic benefits

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