Baghouse with on-line maintenance capability
AssigneeStandard Havens, Inc.
InventorJack T. Clements
Life of this patent
Estimating the term…
Abstract
An industrial baghouse having a single clean air plenum in which a portion of the filter bags can be serviced while the baghouse remains on line. Service compartments in the clean air plenum can be individually isolated from the remainder of the clean air plenum by installing removable slide gates through normally sealed slots formed in the top of the baghouse. When a service compartment has been enclosed by the gates, it is isolated from the clean air plenum and access doors above the compartment can be removed to provide access for on line inspection and servicing of the filter bags and related components. Removable gaskets which normally seal the slots can be removed prior to insertion of the gates and replaced following removal of the gates.
Claims10
A method of carrying out on line servicing of filter bags in a baghouse having a housing, dirty and clean air plenums in the housing separated by a tube sheet from which the filter bags are suspended, and a plurality of normally closed access doors providing access to the clean air plenum when open, said method comprising the steps of:
- installing a plurality of removable gates in the clean air plenum in a configuration to form a substantially enclosed service compartment in the clean air plenum located above the filter bags that are to be serviced and below a preselected access door while said preselected door remains closed, thereby substantially isolating said service compartment from the remainder of the clean air plenum;
- opening said preselected door to provide access to said service compartment and the filter bags therein;
- servicing the filter bags in said service compartment;
- closing said preselected door;
- and
- removing said gates from the clean air plenum to reestablish communication between said service compartment and the remainder of the clean air plenum.
A baghousing comprising:
- a housing having a horizontal tube sheet therein separating the housing into a dirty air plenum and a clean air plenum, said clean air plenum providing a plurality of normally communicating service compartments therein;
- a plurality of filters associated with the tube sheet for filtering gases that are passed through the filters from the dirty air plenum to the clean air plenum;
- a top panel overlying said clean air plenum, said panel having a plurality of access openings therein providing access to the filters through the corresponding service compartments;
- a plurality of doors normally closing the respective access openings, each door having an open position exposing the corresponding access opening;
- a plurality of slots in said top panel between the access openings, said slots being arranged to extend along edges bordering the service compartments;
- removable seal means for normally sealing each slot;
- and
- a plurality of gates each having sufficient length to substantially span the distance between the top panel and tube sheet, said gates being selectively insertable through the slots bordering each service compartment to cooperate in forming a barrier substantially isolating the selected service compartment from the remainder of the clean air plenum, thereby permitting inspection and servicing of the filters in the selected service compartment while the baghouse is in operation.
A baghousing comprising:
- a housing;
- a horizontal tube sheet in said housing separating same into dirty and clean air plenums, said tube sheet having a plurality of gas passages and a plurality of filter bags in the respective gas passages for filtering process gas passed through the passages from the dirty air plenum to the clean air plenum;
- a grid structure on said housing above the clean air plenum, said grid structure having a plurality of spaced apart access openings providing access to the clean air plenum and a plurality of slots located between the access openings;
- a plurality of doors normally closing the respective access openings, each door having an open position exposing the corresponding access opening;
- a removable seal strip for each slot, each seal strip normally overlying the corresponding slot to close the same and being removable from the grid structure to expose the underlying slot;
- and
- a plurality of gates adapted to extend through the slots and insertable through selected slots when the corresponding seal strips have been removed to provide a plurality of substantially enclosed service compartments in the clean air plenum beneath the access openings, each service compartment when enclosed being substantially isolated from the remainder of the clean air plenum to permit inspection and servicing of the filter bags in the compartment while the baghouse is in operation.
Dependencies are inferred from the claim text.