| 摘要 |
FIELD: processes and equipment for washing article surfaces and preparing them for applying coatings, namely jet washing of articles and cleaning washing solution for its multiple usage. ^ SUBSTANCE: method for washing articles comprises steps of acting upon articles by means of jets of washing solution; preliminarily cleaning contaminated washing solution running off from article; filtering washing solution and then supplying it for jet washing. Preliminary cleaning is realized by cascade overflow process at multiply changing direction of washing solution flow up and down and simultaneously subjecting it to magnetic treatment. Surface contamination is removed after settling by draining upper layer of washing solution into sewer system by blowing off contamination from surface of washing solution by means of inclined air streams. Apparatus for performing the method includes chamber where washing circuits are arranged for supplying washing solution onto articles; bath for washing solution arranged under said chamber and provided with filtering units and with pump for feeding liquid to washing circuits. Bath includes magnetic partitions placed in it at different levels along direction of washing solution flow; draining trough mounted on one wall of bath, descended from working level of washing solution by value 10 - 12 mm and communicated with draining system connected with sewer system. On opposite wall of bath blowing off circuit is arranged; it is provided with nozzles inclined by angle 5 - 15° relative to surface of washing solution. Blowing off circuit is connected with compressed air supply system. ^ EFFECT: enhanced quality of cleaning washing solution, therefore its rational consumption, improved quality of cleaning article surfaces, simplified design of apparatus for washing articles. ^ 3 cl, 5 dwg |
