FIELD: process engineering.
SUBSTANCE: filter comprises vertical cylindrical housing with spherical cover and bottom divided by horizontal web into top and bottom chambers. Top chamber is filled with floating granulated material while bottom chamber is filled with heavy sandwiched bed. Water to be processed flows through top chamber mid distributor to be filtered from bottom to top via floating granulated bed to remove coarsely dispersed impurities. Partially cleaned water is collected in top distributor and directed via central vertical pipe into bottom chamber mid distributor. Water in bottom chamber is filtered from top to bottom via heavy sandwiched bed and, after removal of finely dispersed impurities, it is discharged via bottom distributor.
EFFECT: compact design, higher efficiency of cleaning.
3 cl, 1 dwg
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