In a cyclone dust collector and a vacuum cleaning device having the same, foreign substances can be prevented from being attached on an outer circumferential surface of a grill located at an outlet part, so that an inhalation force of the vacuum cleaning device can be prevented from being lowered. Also, foreign substances collected in the cyclone dust collector can be easily removed. The vacuum cleaning device includes: a cyclone dust collector, wherein the cyclone dust collector includes: a cyclone chamber in which air introduced through an inlet part is whirled and dust is separated from the air; an outlet part disposed so that the air from which the dust is separated is discharged from the cyclone chamber; and a grill that is rotatably disposed in the outlet part.

Apparatuses for removing collected particles from a filter and associated methods are disclosed herein. In some embodiments, the apparatus includes (1) a housing having an air inlet and an air outlet and configured to form an airflow path entering the housing via the air inlet, flowing along an inner surface of the housing, and exiting the housing via the air outlet; (2) a filter positioned in the housing; (3) a propeller or impeller positioned adjacent to the filter and in the housing; (4) a driving component coupled to the propeller or impeller and configured to rotate the propeller or impeller; and (5) a plate structure positioned adjacent to the propeller or impeller and opposite to the driving component. The propeller or impeller can be configured to generate an airflow so as to facilitate collecting the particles traveling along the airflow path.

A vacuum cleaner disclosed that includes a cyclone dust collector. The vacuum cleaner includes a cyclone chamber configured to whirl air introduced from an inlet part to separate dust from the air and including an outlet part provided to discharge the air from which dust is separated from the cyclone chamber. The vacuum cleaner also includes a grill rotatably provided at the outlet part. The vacuum cleaner also includes a rotor including a first fan and a second fan configured to generate an air flow in a direction opposite an air flow direction of the first fan. The vacuum cleaner further includes a case in which the rotor is rotatable accommodated with a gap provided between the grill and the case. The case includes a plurality of holes, and includes a dust removal flow path to discharge air introduced from the plurality of holes through the gap.

In a cyclone dust collector and a vacuum cleaning device having the same, foreign substances can be prevented from being attached on an outer circumferential surface of a grill located at an outlet part, so that an inhalation force of the vacuum cleaning device can be prevented from being lowered. Also, foreign substances collected in the cyclone dust collector can be easily removed. The vacuum cleaning device includes: a cyclone dust collector, wherein the cyclone dust collector includes: a cyclone chamber in which air introduced through an inlet part is whirled and dust is separated from the air; an outlet part disposed so that the air from which the dust is separated is discharged from the cyclone chamber; and a grill that is rotatably disposed in the outlet part.

Separation device (1) includes bottomed casing (2), rotating body (3), and blade (4). Casing (2) includes outer tubular portion (5) and inner tubular portion (6). Rotating body (3) is disposed inside inner tubular portion (6) and rotates about a rotation axis along an axial direction of inner tubular portion (6). Blade (4) is disposed between inner tubular portion (6) and rotating body (3), and rotates together with rotating body (3). Inner tubular portion (6) includes inner inflow port (61) and discharge port (63). Discharge port (63) discharges a solid contained in a fluid flowing into an inside of inner tubular portion (6) through inner inflow port (61) between inner tubular portion (6) and outer tubular portion (5). Outer tubular portion (5) includes a fluid outflow port and a solid discharge portion. The fluid outflow port causes the fluid flowing out from the inside of inner tubular portion (6) and flowing into the inside of outer tubular portion (5) to flow out to the outside of outer tubular portion (5). The solid discharge portion discharges the solid discharged from discharge port (63) of inner tubular portion (6) to the outside of outer tubular portion (5).

A centrifugal separator for separation of particles from a gas stream is disclosed. The centrifugal separator includes a self-supporting frame for mounting inside an existing vessel for guiding the gas stream. The frame comprises a holder configured to hold the frame at a position inside the vessel, and a first partition for dividing the vessel into a first section and a second section. The first section is upstream of the second section. The separator includes a gas inlet communicating with the first section, and a gas outlet communicating with the second section. A centrifugal rotor is arranged to be rotatably supported in the frame around a rotational axis, the rotor having a first and a second end portion and including a plurality of separation plates defining separation passages between the plates. The centrifugal separator is configured such that the first and second sections communicate via the separation passages of the rotor.

A centrifugal separator for separating a mixed stream including a first fluid and a second fluid. The separator includes a housing that extends from a first end to a second end. A first flow opening is at the first end, a second flow opening is at the second end, and a third flow opening is at the second end. A rotor assembly within the housing includes a rotor shaft and a cylindrical drum. The cylindrical drum includes an interior including an outer radial portion and an inner radial portion. The outer radial portion is in flow communication with the first flow opening and the second flow opening, and the inner radial portion is in flow communication with the third flow opening. The cylindrical drum is rotatable within the housing such that the first fluid flows along the outer radial portion, and such that the second fluid flows along the inner radial portion.

The present invention provides a system, method and apparatus for treating a liquid by providing a santitary type stainless steel hydrocyclone, flowing the liquid through the hydrocyclone, and turning on a plasma torch attached to the hydrocyclone such that a plasma arc irradiates the liquid. The hydrocyclone can be a forward flow hydrocyclone, a reverse flow hydrocyclone, a through flow hydrocyclone, a hydrocyclone pump or a volute.

A cyclone dust collector having improved usability and a vacuum cleaner having the same are provided. The cyclone dust collector includes: a cyclone chamber including an inlet through which air is drawn in and an outlet through which dust-filtered air is discharged; a discharge passage disposed inside the cyclone chamber; a spiral part formed around the discharge passage to be inclined in a spiral pattern; and a grill rotatably disposed on the discharge passage, and the outlet is formed inside the discharge passage.

A system for separating a heavy fraction from a liquid includes an upper section in fluid connection with-an inlet, an impeller within the upper section and a flow restrictor positioned below the impeller having a diameter less than the diameter of a a lower section housing to form a gap between the flow restrictor and the lower section housing. An inlet of a conduit is positioned radially inward from an interior wall of the lower section housing and below the flow restrictor. The conduit includes an outlet outside of the lower section. The lower section is generally cylindrical from the top of the gap to a baffle positioned below the flow restrictor, which defines a settling section. The lower section further includes a slurry outlet in operative communication with the settling section.