Washing chamber structure description

The housing is an all-welded polypropylene box reinforced with a steel frame. The chamber is supplied with two tanks for working solutions, which are also made of polypropylene (a material resistant to both acidic and alkaline media) resulting in a wide range of working reagents used.
One tank is equipped with an automated heating system for the used fluid with tubular heating elements (made of stainless steel) and insulant to reduce heat loss.
When manufactured, the washing chamber can be additionally equipped with one or two auxiliary tanks, with a corresponding increase in the number of processes carried out in it.

With flat-jet spray nozzles used, the metal is exposed not only to chemicals but also to the physical force of the jet of service fluid resulting in the accelerated process of chemical surface treatment.
During blasting, the electric drive moves the trolley with the parts, which in turn makes reciprocating movements along the washing chamber and ensures the treatment of the entire surface of the processed products.
The header and nozzles of the washing chamber are also made of polypropylene.

The supply and distribution of fluids are carried out with air-operated pumps and valves. Each tank has an analogue level sensor which allows monitoring the real fluid level in it.
The tank with heating elements (intended for the active solution) is equipped with a temperature sensor, PH sensor and skimmer (a device for removing the grease film from the surface of the solution).
The washer is controlled from the operator’s touchscreen panel via an intuitive HMI.

Owing to the use of modern programmable logic controllers, all processes, namely:

• maintaining the level of fluids in tanks
• maintaining the fluid temperature,
• monitoring the position of dampers and the performance of pumping equipment,
• as well as the washing process itself, are automated to the greatest possible extent and have flexible settings.

The tanks can be refilled both according to the cascade overflow scheme (each tank is refilled with the fluid of the next tank, and the last tank — with fresh water) and directly from the centralized water supply system.

Within areas where the Ph level control is required, sensors are installed, the signals of which are displayed on the touchscreen panel, informing the operator in case of Ph level outside the reference range.