Water-saving spray rinsing technology

Water-saving spray rinsing technology for the plating industry.

• Significant reduction in rinse water consumption
• Improved rinsing results
• Reduced rinse water volume, increased concentration
• Ideally suited for recycling and reclamation, concentration, and electrolytic recovery processes
• Programmed spray rinsing with defined rinse water quantities for each bath
• Each rinse step consists of a double rinse, including immersion and spray rinse
• Automatic level control and compensation within the various rinse stages of a sequence
• Simple to install, including retrofits

Environmental legislation sets the objectives for waste avoidance and minimization. The authorities insist upon the application of waste minimization processes and equipment, such as multiple use of rinse water and the prevention of loss by dragover.

This water-saving rinse technology provides the basis for our recovery processes. The result is reduced rinse water volume with an increased concentration of contaminants--which provides the basis for further concentration through atmospheric or vacuum evaporators, and for electrolytic recovery or metal reclamation by precipitation and subsequent redissolution.

The Gütling spray rinse technology utilizes easy to install pressure cylinders, which deliver an exact dosage of rinse water to the spray nozzles exactly when the racks exit from the tanks. The built-in level control delivers the correct rinse water volume for each cycle, and also maintains the proper solution levels in the tanks of the rinse sequence.

Freshwater is used in the pressure cylinder for the final rinse. There is no limitation as to the number of rinse tanks in any rinse sequence. Since the pressure cylinders regulate and adjust the respective rinse water levels, the system requires no gravity flow. The rinse water flow, opposite to the direction of travel for the components to be processed, is achieved by connecting the pressure cylinder to the rinse tank, so that the cylinder fills on its own.

When the components exit the tanks, the conveyor control program actuates a spray rinse that uses the better quality water from the following rinse sequence. This method, combined with the additional mechanical action, achieves good rinse results with extremely little water. This system is easily retrofitted, even with older automatic plating machines.