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US 5,178,648 AGranted
Particulate filtration apparatus and method
AssigneeEmtrol Corporation
InventorsBodo Kalen, Nicholas L. Giuricich
Life of this patent
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AssigneeEmtrol Corporation
InventorsBodo Kalen, Nicholas L. Giuricich
Estimating the term…
A method and apparatus are provided for separating particulate material from hot gas. Provisions are made for accommodating relative thermal expansion between a hot particular laden gas chamber, a particulate discharge chamber and a clean gas chamber. A main housing supports an interior subhousing supported from the top of the main housing while a further discharge chamber housing is supported from a lower part of the subhousing in such a manner that they are free to expand and contract independently of one another. Gas and particulate separators which are free from load bearing stresses are designed to receive the particulate laden gas and pass particulates to the particulate discharge chamber for bottom discharge and the gas to the clean gas chamber for discharge at the top of the main housing. Provisions are made for auxiliary discharge of particulates bypassing the separators at a bottom of the clean gas chamber. Relative expansion is provided for at the lower extremities of the main housing and subhousing and discharge chamber housing with gas sealing therebetween. Downward flow of the particulate laden hot gas past the separators is employed to drive the particulates in a direct line to minimize dissipating energy in peripheral or vortical flow.
A method for compensating for radial and longitudinal heat expansion in a particulate separator in which hot, particulate laden gas is fed downwardly through an inlet in a housing through a particulate laden gas chamber concentrically intermediate a particulate collecting chamber disposed radially inwardly therefrom and a radially outwardly disposed clean gas chamber having an outlet in the housing, said particulate laden gas chamber and clean gas chamber having a common shell wall providing for said radial and longitudinal expansion and said wall being suspended in load bearing relation solely from a top cover portion of said housing wherein provision is made for downward movement of the lower extremities of the housing defining said particulate laden gas chamber and said particulate collecting chamber, while maintaining a gas seal against outward escape of gas from said clean gas chamber the particulate laden hot gas being conducted past transversely disposed cyclone separators having an inlet in the particulate laden gas chamber, a gas outlet in the clean gas chamber and a particulate outlet in the particulate collecting chamber which separate clean gas into the clean gas chamber and pass separated particulates into the particulate collecting chamber and collecting an additional portion of the particulate bypassing the separators at the bottom portion of the particulate laden gas chamber.
Apparatus for separating particulate material from hot gases and for compensating for radial and longitudinal expansion in a particulate separator comprising a housing having a concentrically arranged particulate laden gas chamber having an inlet at the top of the housing, a particulate collecting chamber disposed concentrically inwardly thereof and a clean gas chamber having an outlet in the housing and disposed radially concentrically outwardly, said particulate laden gas chamber and clean gas chamber having a first common shell wall providing for said radial and longitudinal expansion suspended in load bearing relation solely from a top cover portion of said housing, said particulate laden gas chamber and said particulate collecting chamber having a second common shell wall, sealing means being provided at lower extremities for preventing escape of gas outwardly from the clean gas chamber while permitting both radial and longitudinal expansion of lower parts of the particulate laden gas chamber and the particulate collecting chamber, and transversely disposed cyclone separators having an inlet in the particulate laden gas chamber, a gas outlet in the clean gas chamber and a particulate outlet in the particulate collecting chamber.
Apparatus for separating particulate material from hot gases and for compensating for radial and longitudinal expansion in a particulate separator comprising a concentrically arranged particulate laden hot gas chamber having an inlet in the top of the housing, a particulate collecting chamber disposed concentrically inwardly thereof and a clean gas chamber having an outlet in the housing and said chamber being disposed radially concentrically outwardly of the particulate laden hot gas chamber, a main vertically extending housing, a subhousing forming an inner wall of the clean gas chamber and an outer wall of the particulate laden gas chamber providing for said radial and longitudinal expansion supported solely from a top of the main housing and a free standing particulate collecting housing supported by said subhousing, said free standing particulate housing forming an inner wall of the particulate laden gas chamber and an outer wall of the particulate collecting chamber, all of said aforementioned housings being free to expand and contract independently of one another, and transversely disposed cyclone separators having an inlet in the particulate laden gas chamber, a gas outlet int he clean gas chamber and a particulate outlet in the particulate collecting chamber.
Dependencies are inferred from the claim text.