Method for producing sintered bricks, blocks or ceramic products by using crystalline silicon cutting waste mortar

Abstract

The invention discloses a method for producing a sintered brick, a building block or a ceramic product by using crystal silicon cutting waste mortar. The method comprises the following steps: weighing construction waste residue, mine waste residue, shale, gangue, coal slag, construction garbage, wood chip and the crystal silicon cutting waste mortar according to the weight ratio, fragmenting the materials by a crusher, stirring the raw materials and uniformly mixing the raw materials to obtain a mixture; sending the mixture to a homogenization silo by a stocker for aging; sending an aged blank material into an extruder forming machine by a material taking machine; pushing the molded base substrate in a drying kiln for drying; placing the dried base substrate into a tunnel furnace for roasting, and cooling the material to obtain the fired brick, the building block or the ceramic product. The crystal silicon cutting waste mortar is used for producing the fired brick, the building block or the ceramic product, the adhesion stress and the plasticising effect of PEG in the blank material can be fully performed, the drying sensitivity of the blank material is improved, and the method provides a cheap solution scheme for using the barren waste raw materials such as construction waste residue, construction garbage, coal slag and shale.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a method for producing sintered bricks, blocks or ceramic products by using crystalline silicon cutting waste mortar. Background technique [0002] In recent years, my country has made great progress in the research and development of solar energy, which has also promoted the rapid development of monocrystalline silicon and polycrystalline silicon industries, which are the main raw materials of solar energy. Crystalline silicon must be sliced ​​before it can be used in the photovoltaic industry, which requires the use of a large amount of polysilicon cutting fluid, which will gradually fail after repeated use in the cutting machine several times. At present, the polysilicon fluid used at home and abroad is mainly water-based cutting fluid, and its main components include polyethylene glycol (PEG) and silicon carbide (SC). The rapid development of the photovoltaic industry has r...

AI Technical Summary

Problems solved by technology

The common problems of these methods are: low purity of recovered products, complex process, huge investment, high production cost, and the production methods of using acid, alkali, distillation, etc. will produce serious secondary pollution

[0006] At present, there is no report on the technical scheme of using crystalline silicon cutting waste mortar to prepare sintered bricks, blocks, and ceramic products.