ADJUSTABLE TUBULAR DUST CATCHER Russian patent published in 2023 - IPC B01D45/06 B01D45/08 

FIELD: ventilation.

SUBSTANCE: invention relates to equipment for dry purification of gases from dust and aerosols in aspiration and ventilation systems; it can be used in construction, food, chemical, and other industries. An adjustable tubular dust catcher consists of a cylinder-conical case, input and output branch pipes coaxially connected to it, through which a purified gas flow is supplied bottom-up, partitions fixed inside the case, perforated with holes, wherein 57 lower holes in each of the 1^st, 2^nd, 5^th, 6^th partition are located in a line at an angle of 22.5°, along diameters of the partition, and connected in pairs with tubes of an equal diameter: 1^st and 2^nd partitions, 5^th and 6^th partitions; and 44 holes of each of the 3^rd, 4^th, 7^th, and 8^th partitions are also located in a line at an angle of 22.5°, along diameters of the partition, and are displaced from the center at a distance of 1 diameter of the hole relatively to holes located on the 1^st, 2^nd, 5^th, and 6^th partitions, and are connected in pairs with tubes of an equal diameter: 3^rd and 4^th partitions, 7^th and 8^th partitions. The dust catcher is characterized in that tubes are made of flexible corrugated material. An axis rotated by an electric engine passes in the center through the entire dust catcher. 2^nd, 4^th, 6^th, and 8^th partitions are rigidly fixed using fasteners on the axis of rotation located in the center of the dust catcher, which allows them to be moved around their axis, they are not fixed on the case of the dust catcher and are rotated in grooves. 1^st, 3^rd, 5^th, and 7^th partitions are rigidly fixed on the case of the dust catcher, they have holes for the axis of rotation, and they are not attached to the axis of rotation.

EFFECT: increase in the efficiency of purification of a dust-gas flow from dust due to bending of tubes by means of rotation of the axis and partitions and, thus, possibility of adjustment of the efficiency.

1 cl, 1 dwg