Scrubber and exhaust gas treatment apparatus
AssigneeEbara Corporation
InventorsKazutaka Okuda, Kotaro Kawamura
Life of this patent
Estimating the term…
Abstract
A scrubber removes dust from an exhaust gas. The scrubber includes a casing having an exhaust gas inlet and an exhaust gas outlet, an impeller housed in the casing and supported by a shaft, and a cleaning liquid supply tube for ejecting a cleaning liquid by which the dust contained in the exhaust gas is captured. The scrubber further includes a plurality of protrusions provided around the impeller such that the exhaust gas and the cleaning liquid which are discharged from the impeller impinge upon the protrusions.
Claims19
A scrubber for removing dust from an exhaust gas, comprising:
- a casing having an exhaust gas inlet and an exhaust gas outlet;
- an impeller housed in said casing and supported by a shaft;
- a cleaning liquid supply tube for ejecting a cleaning liquid by which the dust contained in the exhaust gas is captured;
- and
- a plurality of protrusions provided around said impeller such that the exhaust gas and the cleaning liquid which are discharged from said impeller impinge upon said protrusions;
- wherein positions of side end portions of adjacent two of said protrusions are different from each other in an extending direction of said shaft.
A scrubber for removing dust from an exhaust gas, comprising:
- a casing having an exhaust gas inlet and an exhaust gas outlet;
- an impeller housed in said casing and supported by a shaft;
- a cleaning liquid supply tube for ejecting a cleaning liquid by which the dust contained in the exhaust gas is captured;
- a plurality of protrusions provided around said impeller such that the exhaust gas and the cleaning liquid which are discharged from said impeller impinge upon said protrusions;
- an exhaust gas pipe disposed at the upstream side of said exhaust gas inlet and having a slop inclining downwardly toward said exhaust gas inlet;
- and
- a cleaning liquid ejection port for ejecting a cleaning liquid into said exhaust gas pipe.
An exhaust gas treatment apparatus for treating an exhaust gas containing dust, comprising:
- a scrubber for removing the dust from the exhaust gas;
- a mist collector provided at the downstream side of said scrubber for trapping and collecting a mist contained in the exhaust gas;
- and
- a heat exchanger provided at the downstream side of said mist collector for cooling the exhaust gas to a temperature equal to or lower than a predetermined temperature;
- wherein said scrubber comprises a casing having an exhaust gas inlet and an exhaust gas outlet, an impeller housed in said casing and supported by a shaft, a cleaning liquid supply tube for ejecting a cleaning liquid by which the dust contained in the exhaust gas is captured, and a plurality of protrusions provided around said impeller such that the exhaust gas and the cleaning liquid which are discharged from said impeller impinge upon said protrusions.
Dependencies are inferred from the claim text.