Process design of titration method for alumina balls:

Firstly, slurry preparation: mixing aluminum salt with dispersants, stabilizers, etc; Hydrolysis condensation forms a uniform alumina sol; During titration molding: the sol is dropped into the molding solution (such as ammonia water) through microsphere molding droplets/Oil droplet velocity100-500drop/Minutes, droplet diameter0.5-3mmSolidify and form alumina microspheres; Then there is aging and solidification, where alumina microspheres are left to age in the molding solution to enhance their strength; Then wash to remove residual reactants and impurities, with a washing frequency of approximately3-5Secondly; Perform gradient heating drying to prevent cracking; During high-temperature calcination to enhance the density and strength of microspheres, the sintering temperature is approximately1200-1600℃The heating rate is approximately2-5℃/minFinally, perform sorting, packaging, screening, and grading (such as20-100Objective: Remove irregular particles and shake the amplitude of the vibrating screen1-5mmSorting accuracy±5μmPackaging humidity≤5%Vacuum sealed to prevent moisture.

Characteristics of alumina microsphere forming instrument: capable of preparing alumina microsphere particle size0.5-0.8mm,0.8-1.2mm,1.2-2mmThe liquid point speed can reach1080pcs/hPoint liquid accuracy ±0.3%There are multiple methods to choose from for automatic cleaning and password protection of the alumina microsphere forming instrument.