Method for preparing artificial quartz stones by using kaolin desliming tailings

Abstract

The invention discloses a method for preparing artificial quartz stones by using kaolin desliming tailings, which relates to building decoration materials and comprises the following steps of: stirring unsaturated resin and colorants, adding the kaolin desliming tailings, natural river sand and silicon dioxide powder, performing stirring, adding an accelerator, a coupling agent and a curing agent, performing stirring and injecting the mixture into a mould; feeding the mould into a vacuum box for vacuumizing, pressing and forming the mixture and performing curing and heating; and performing cooling de-molding to remove the mould, performing polishing and finally cutting the molded mixture into standard artificial quartz stone slabs, wherein artificial quartz stones are made from the following raw materials in percentage by mass: 12 to 65 percent of natural river sand of 10 to 120 meshes, 15 to 35 percent of natural river sand of larger than 120 to 1,500 meshes, 5 to 15 percent of silicon dioxide powder, 0.1 to 19 percent of unsaturated resin, 0.1 to 5 percent of accelerator, 0.1 to 3 percent of coupling agent, 0.1 to 5 percent of curing agent and 0 to 5 percent of colorant. The method reduces initial investment, and is convenient to operate, easy to implement, simple and reasonable; and the products have the natural veins, stripes and rich colors of marbles, also have the hardness of the quartz stones and are suitable for industrialization.

Description

technical field [0001] The invention relates to a building decoration material, in particular to a method for preparing artificial quartz stone by using kaolin clay desilting tailings. Background technique [0002] Artificial quartz stone, also known as quartz granite, is a kind of raw material that uses siliceous stone grains and stone powder, and uses less adhesives and pigments. After aggregate → stirring → mixing → cloth → vacuum → vibration → compression, etc. The process completes its thin plate forming, and then it becomes a decorative material for buildings and countertops through heat curing→thickness setting→reverse thickness setting→grinding→slitting and other processing processes. It has strong acid resistance, corrosion resistance, wear resistance, and It has the advantages of high temperature, impact resistance, compression resistance, bending resistance, penetration resistance, easy cleaning and convenient construction. The color of its pattern and pattern can...

AI Technical Summary

Problems solved by technology

The amount of resin disclosed in the inventive process is not enough, and a large amount of very fine quartz powder needs to be used, which will increase the cost

In these technologies, due to the use of large-sized quartz stone particles and extremely fine quartz powder in the raw materials, on the one hand, the amount of resin used will increase, which will reduce the strength of the finished material; on the other hand, due to the need to use extremely fine quartz powder , which will increase the manufacturing cost of the finished product; and the large difference between the two types of particle sizes in the raw materials will cause segregation during the manufacturing process, which will have a more negative impact on the strength of the finished material; The consumption is high, and the finished product rate of pressed molding products is not high, which limits the large-scale production of artificial quartz stones.