Ceramic tile using low-silicon high-iron tailing as major raw material and manufacture method thereof

Abstract

The invention relates to a ceramic tile manufactured from low-silicon high-iron tailing as a major raw material and a manufacturing method thereof. According to the technical scheme, the manufacturing method comprises the following steps of: mixing 55-65 percent by weight of iron tailing powder, 20-25 percent by weight of kaolin and 10-25 percent by weight of quartz powder, adding water in an amount of 8-10 percent by weight of the total weight of the raw materials and performing ball milling to obtain slurry with the particle size of less than 0.074 millimeter; drying the slurry until the water content is 15-20 percent by weight, grinding uniformly, sealing and standing for 1-3 days and performing extrusion forming; naturally drying a green tile indoors for 24-28 hours and drying at the temperature of 100-105 DEG C for 1-2 hours; and putting the dried green body into a furnace, raising the temperature to 1,170-1,230 DEG C at the temperature raising speed of 5-10 DEG C per minute, preserving heat for 20-30 minutes and naturally cooling to room temperature along with the furnace to obtain the ceramic tile. The ceramic tile has the characteristics of environmental friendliness, low production cost and simple raw material formula and production process; a new method for utilizing a large quantity of low-silicon high-iron tailings at a high added value is developed, and the product performance reaches the national standard.

Description

technical field [0001] The invention belongs to the technical field of building ceramic materials, and in particular relates to a porcelain brick with low-silicon and high-iron tailings as the main raw material and a preparation method thereof. Background technique [0002] As the waste slag after beneficiation, iron tailings are the main component of industrial solid waste. The current large-scale and efficient utilization of tailings is mainly in the aspect of building materials, which are used as raw materials for the production of cement, concrete blocks, unburned bricks, autoclaved bricks and fired bricks, and are also used for the preparation of ceramics, glass-ceramic, refractory materials etc. Among them, for low silicon iron tailings (SiO 2 <50wt%) is mainly used in the production of concrete blocks and non-fired bricks, but due to the low silicon content, it mainly acts as a fine aggregate in the raw materials, making the non-fired building materials produced ...

AI Technical Summary

Problems solved by technology

The production of traditional porcelain tiles mainly uses kaolin, feldspar, quartz, pyrophyllite, perlite, wollastonite, talc and other minerals as raw materials, through batching, ball milling, sieving to remove iron, spray drying, granulation, compression molding, It is produced through the processes of baking, firing and other processes. In order to obtain the appropriate color, sometimes an additional coloring process is required, which has the characteristics of over-reliance on high-quality raw materials and complicated production processes in the formula.