Production post-processing equipment for silica powder

Abstract

The invention relates to the technical field of silica powder production, and particularly discloses silica powder production aftertreatment equipment which comprises a sedimentation tank, an acid-base washing device, a grading kettle, an overflow system, a centrifugal machine, a drying machine, an ultrasonic screening machine and a bagging treatment mechanism which are sequentially connected. A washing and drying device is arranged at the front end of the sedimentation tank, a drainage pipe of the washing and drying device is communicated with a sewage inlet of the water treatment equipment, a rotating paddle is arranged in the acid-base washing device, and the discharging end of the ultrasonic screening machine is communicated with the feeding end of the bagging treatment mechanism. The spiral conveying blade conveys the silica powder, the silica powder is in contact with the conveying surface of the spiral conveying blade, the conveying surface of the spiral conveying blade is a frosted surface, and rhombic irregular corners on the surface of the silica powder are removed through friction due to frequent friction contact with the surface of the conveyed silica powder, so that the silica powder is closer to a sphere.

Description

technical field [0001] The present invention relates to the technical field of silicon micropowder production, in particular to a post-processing equipment for the production of silicon micropowder. Background technique [0002] Silicon micropowder is a non-toxic, odorless, non-polluting inorganic non-metallic material; because it has good temperature resistance, acid and alkali corrosion resistance, high thermal conductivity, high insulation, low expansion, stable chemical properties, high hardness and other excellent properties. It is widely used in chemical industry, electronics, integrated circuits (IC), electrical appliances, plastics, coatings, advanced paints, rubber, national defense and other fields; with the rapid development of high-tech fields, silicon micropowder will also enter a new historical development period; silicon micropowder is made of natural quartz (SiO2) or fused quartz (amorphous SiO2 after natural quartz is melted and cooled at high temperature) a...

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Problems solved by technology

[0003] The main application of microsilica powder is plastic packaging compound and packaging material for integrated circuits and electronic components. Most of them are ball milled, and the shape of the silicon micropowder produced is mostly irregular rhombus. When it is used in the molding compound of electronic components, the viscosity between the silicon micropowder is larger than that of the spherical silicon micropowder, and the filling rate is low. At the same time, because of its shape Irregular rhombus shapes cause certain burrs on the outer surface of the plastic package, which affects the smoothness and quality of the surface of the plastic package. Therefore, in order to solve such problems, we propose a post-production processing equipment for silicon micropowder

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