DRAINAGE-FILTERING SLOT DEVICE FOR LIQUID SLUDGE DEHYDRATION (EMBODIMENTS) Russian patent published in 2023 - IPC B01D25/172 C02F11/123 

FIELD: public utilities.

SUBSTANCE: drainage-filtering slot device for dehydration of liquid sludge generated at treatment facilities in wastewater treatment processes is described, which is made in the form of a hollow structure consisting of a frame with stiffeners, comprising at least one enclosing wall made of a single sheet material with longitudinal slotted slots along the entire height of the device, whereas the slots are located vertically and/or with a vertical slope, and the distance between the horizontal stiffeners is not more than 500 mm. A drainage-filtering slotted device for dehydration of liquid sludge formed at treatment facilities in wastewater treatment processes is described, which is made in the form of a hollow structure, consisting of a frame with stiffeners, comprising at least one enclosing wall made of separate elements forming slotted holes along the entire height of the device, whereas the individual elements are rigidly fixed to the stiffeners with the formation of slotted holes, whereas at least one stiffener is made in the form of a comb, consisting of a horizontal rib and perpendicularly located ribs, to which the individual elements are rigidly fixed, whereas each individual the element is fixed to the tooth of the ridge, which is separated from the enclosing wall.

EFFECT: improved filtration quality.

11 cl, 26 dwg