Feeding of Base Powder and Additives
The base powder is produced from various solid and liquid ingredients. The actual mass flow rate of base powder being produced is metered by a Smart Weigh Belt, mounted at the discharge of either a spray tower or fluidised bed. Next, other loss-in-weight dry feeders add additional minor powder ingredients onto the conveyor belt with the base powder.
The combined ingredients then enter a continuous mixer, where liquid additives such as perfumes are dosed in exact proportion using liquid loss-in-weight feeders or liquid PID control. After mixing, the detergent powder passes through a final sieving and metering stage. In the final step, a Smart Weigh Belt transfers the finished product into the packing operation. There it flows directly to a packing machine, tablet press or into FIBC's for intermediate storage or bulk transport.
Typical Production Process for Laundry Detergent Powder: