Cyclone having a pure gas line
AssigneeBinder GmbH
InventorErwin Brunnmair
Life of this patent
Estimating the term…
Abstract
A cyclone for separating solid particles from an exhaust gas flow includes a housing with a jacket area that is cylindrical at least in some sections, with a cover area, and with a bottom area. An exhaust gas line opens into an inlet opening and is for an exhaust gas flow mixed with solid particles. A discharge opening is for the solid particles separated from the exhaust gas flow. An immersion pipe has a penetration area passing through the housing and has an open end area protruding into the interior of the housing and used as an outlet opening for the purified exhaust gas flow from the housing. At least one pure gas line supplies pure gas, creating a second boundary layer flow to replace a first boundary layer flowing having an increased concentration of solid particles.
Claims16
A cyclone for separating solid particles from an exhaust gas flow, the cyclone comprising:
- a housing with a jacket area that is cylindrical at least in some sections, a cover area and a bottom area;
- an inlet opening for feeding the cyclone;
- an exhaust gas line opening into said inlet opening for the exhaust gas flow mixed with solid particles;
- a discharge opening for the solid particles separated from the exhaust gas flow;
- wherein an immersion pipe is provided which passes through the cover area or the bottom area, and comprises an open end area which protrudes into an interior area of the housing and which is used as an outlet opening for purified exhaust gas flow from the housing;
- wherein at least one pure gas line is provided to supply pure gas, with said at least one pure gas line either opening into an inlet area provided in the exhaust gas line before the inlet opening as viewed in a flow direction of the exhaust gas flow or opening directly into the inlet opening;
- wherein said pure gas is fed to an inner wall section of the housing, at which inner wall section a first boundary layer flow having an increased concentration of solid particles as compared to the exhaust gas flow mixed with solid particles would develop if the pure gas were not supplied;
- wherein the cover area or the bottom area of the housing converges in a planar manner into a side wall of the exhaust gas line in order to form a second boundary layer flow of the pure gas at the inner wall section;
- and
- wherein said second boundary layer flow replaces the first boundary layer flow having an increased concentration of solid particles.
A method for separating solid particles from an exhaust gas flow using a cyclone, the method comprising steps of:
- conveying the exhaust gas flow in an exhaust gas line, the exhaust gas flow containing the solid particles;
- guiding the exhaust gas flow through a housing of the cyclone;
- and
- removing the exhaust gas flow out of the housing through an outlet opening;
- wherein the solid particles are ejected against an inner wall of the housing by centrifugal forces while the exhaust gas flow descends and is guided through the housing;
- wherein the solid particles are discharged through a discharge opening provided in the housing;
- wherein pure gas is supplied to the exhaust gas flow before or during entrance of the exhaust gas flow into the housing, which pure gas is subsequently supplied to an inner wall section of the housing, wherein a first boundary layer flow having an increased concentration of solid particles as compared to the exhaust gas flow mixed with solid particles would form at the inner wall section if the pure gas were not supplied;
- wherein a supplied quantity of the pure gas is adjusted to a flow direction and a flow speed of the exhaust gas flow;
- wherein a second boundary layer flow of pure gas is formed on the inner wall section;
- and
- wherein said second boundary layer flow replaces the first boundary layer flow.
Dependencies are inferred from the claim text.