Pressure characteristics of spray-drying-type PAC mainly by the pressure atomizer works determined to make the drying system has its own characteristics.As the pressure-type spray dried product is derived from particle-like or hollow porous particle form, using pressure-type spray-drying, multi-purpose to obtain the granulated product obtained granulated product has excellent performance and mobility performance of dust.Between product and water due to the larger contact area, so wetting properties than the powdered product is good, clean water, the rate was significantly higher than powder products, by the pressure type spray dried product has a unique characteristics,So deeply user high praise.
spray granulation is dried poly aluminum chloride was atomized into tiny particles at the same time, this particle formulations have good application performance.Poly aluminum chloride is a water-soluble substances, has good thermal stability and high solubility, in the drying process will be 40% -50% solid content of poly-aluminum chloride solution, the introduction of high-pressure pump, through pressureentered the dryer in the nebulizer for atomization, scattered into a tiny droplet, the droplet was obtained after drying granular products that enable the completion of drying and granulating the same time.
Features
1) a large number with a positive charge, form a stable multi-core aluminum hydroxyl complexes, can effectively promote flocculation,sizing.
2) Appearance white, low iron content can meet the needs of manufacturing high-quality paper.
3) PAC is a pre-hydrolyzate of aluminum chloride, the hydrolysis was relatively low, a decrease in pulp pH value smaller than the aluminum sulfate.
4) the use of PAC sizing, slurry retention to help filter effects has improved significantly.
5) In addition to breaking length of paper properties, other indicators have improved to varying degrees.
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