摘要:
A method for removing particulate matter from a particulate-bearing gas stream comprises flowing a particulate-bearing gas stream at a first volumetric flow rate to a plurality of ESP units; producing electrically charged particulate matter; collecting electrically charged particulate matter on collection electrode plates; reducing the flow through at least one of the ESP units; sequentially increasing the flow through one or more remaining ESP units in an amount so as to maintain the sum of flow through all of the ESP units at the first volumetric flow rate; subjecting the collection electrode plates in the at least one ESP unit with reduced flow to forces which dislodge the particulate matter from the collection electrode plates; collecting the dislodged particulate matter in a particulate collection receptacle; and withdrawing a gas stream of reduced particulate matter contamination.
摘要:
A method for removing particulate matter from a particulate-bearing gas stream includes flowing a particulate-bearing gas stream at a first volumetric flow rate to a plurality of ESP units; producing electrically charged particulate matter; collecting electrically charged particulate matter on collection electrode plates; reducing the flow through at least one of the ESP units; sequentially increasing the flow through one or more remaining ESP units in an amount so as to maintain the sum of flow through all of the ESP units at the first volumetric flow rate; subjecting the collection electrode plates in the at least one ESP unit with reduced flow to forces which dislodge the particulate matter from the collection electrode plates; collecting the dislodged particulate matter in a particulate collection receptacle; and withdrawing a gas stream of reduced particulate matter contamination.
摘要:
A filtration assembly (1), which comprises an enclosure (2) which defines inside it a duct (3) for the passage of a fluid which carries pollutant particles (A) to be removed. At a first transverse cross-section of the duct (3) at least one perforated conducting grille (4) is provided, which is kept at a negative electrical potential, so as to emit into the duct (3) electrons which can bond to the pollutant particles (A), consequently giving them a negative electrical charge. Inside the duct (3), downstream of the grille (4), at least one accumulation plate (5) is provided, kept at a positive electrical voltage, for collecting the pollutant particles (A) charged electrically negatively by the electrons emitted by the grille (4). Moreover, at least one deflection element (6) is arranged proximate to the accumulation plate (5) and is kept at a negative electrical potential in order to generate an electrical field inside the duct (3), with consequent redirection of the negatively electrically charged particles (A) toward the accumulation plate (5). The assembly comprises at least one conducting filament (7), which faces and is proximate to a respective hole (8) of the grille (4). The filament (7) is kept at a negative electrical potential, for the emission of electrons, which can bond to the pollutant particles (A) carried at least by the portion of fluid that passes through the respective hole (8).
摘要:
Ion delivery manifolds with a gas transport channel, for receiving an ionized gas stream, and plural outlets that divide the gas stream into plural neutralization gas streams that are directed toward respective plural target regions are disclosed. At least generally equal ion distribution across the target regions is achieved by using different ion flow rates through the plural outlets. Methods of delivering plural neutralization streams to respective plural target regions include steps for receiving an ionized gas stream, for dividing the ionized gas stream into plural neutralization streams, and for directing the neutralization streams toward respective target regions. At least generally equal ion distribution across the target regions is achieved by differing the ion flow rates of the neutralization streams.
摘要:
Die Erfindung betrifft eine Vorrichtung und ein Verfahren zum Reinigen von Rauchgas einer metallurgischen Anlage. Ein Gehäuse (4) der Vorrichtung weist eine Einlassöffnung (6) und eine Auslassöffnung (8) für das Rauchgas auf, wobei in dem Gehäuse (4) eine Leiteinrichtung (10) angeordnet ist. Die Leiteinrichtung (10) kann von dem Rauchgas angeströmt werden, um das Rauchgas innerhalb des Gehäuses (4) zum Abscheiden von Staubpartikeln gezielt in Richtung einer Niederschlagsfläche (5) zu richten. Innerhalb des Gehäuses (4) wird ein elektrisches Feld erzeugt, wobei das Rauchgas innerhalb des Gehäuses (4) durch das elektrische Feld hindurch geleitet wird und dadurch die in dem Rauchgas enthaltenen Staubpartikel ionisiert und in Richtung der Niederschlagsfläche (5) geleitet werden.
摘要:
Die Erfindung betrifft eine Vorrichtung und ein Verfahren zum Reinigen von Rauchgas einer metallurgischen Anlage. Ein Gehäuse (4) der Vorrichtung weist eine Einlassöffnung (6) und eine Auslassöffnung (8) für das Rauchgas auf, wobei in dem Gehäuse (4) eine Leiteinrichtung (10) angeordnet ist. Die Leiteinrichtung (10) kann von dem Rauchgas angeströmt werden, um das Rauchgas innerhalb des Gehäuses (4) zum Abscheiden von Staubpartikeln gezielt in Richtung einer Niederschlagsfläche (5) zu richten. Innerhalb des Gehäuses (4) wird ein elektrisches Feld erzeugt, wobei das Rauchgas innerhalb des Gehäuses (4) durch das elektrische Feld hindurch geleitet wird und dadurch die in dem Rauchgas enthaltenen Staubpartikel ionisiert und in Richtung der Niederschlagsfläche (5) geleitet werden.