detergent powder makin with spray drying tower: The final product detergent powder from this kind of plant will have bulk density of 0.25 to 0.35. Manual or fully automatic computer controlled system can be used in the above-mentioned detergent powder makin, depending on customer’s requirements. 1.The capacity of the plants is 3,000 t/a to 200,000 t/a. 2.The operation mode can be manually and computer controlled. 3.The supply range is from renovation of existing plant to totally new plants. Environmental impact: no wastewater is drained to outside. Description of the processes Plant with spray drying tower Raw materials in form of powder and liquid are dosed accurately, and then are sent to neutralization and ageing system to be neutralized and aged. The process stream in form of slurry now goes through a milling-homogenizing pump to be homogenized. After that the slurry is then fed to the spray-drying tower to form hollow beads with bulk density of 0.20 to 0.35 kg/L, granulation size of 0.5 to 1.5 mm. After sieved and conditioned in an airlift system, the powder becomes the base powder of low bulk density. A post-addition unit can be provided according to customer’s requirements, where perfume, enzyme, perborate are mixed to the base powder to yield medium- or high-grade detergent powder.
detergent powder making