Pocket filter for purifying dust-laden gas

Abstract

Abstract IN A POCKET FILTER FOR PURIFYING DUST-LADEN GAS, COMPRISING A FILTER CHAMBER SEPARATED INTO A DUST-LADEN GAS COMPARTMENT AND A CLEAN GAS COMPARTMENT BY A WALL WITH VERTICALLY EXTENDING SLOTS FORMED THEREIN IN SPACED PARALLEL RELATION, AND FILTER POCKETS EXTENDING THROUGH THE SLOTS INTO THE DUST-LADEN GAS COMPARTMENT SECURED TO THE SLOTTED WALL AND SUPPORTED BY INNER FRAMES INCLUDING A BRIDGING FORMED BY A MAT OF SPIRAL SPRINGS INSERTED INTO THE FILTER POCKETS AND EXTENDING BEYOND THE SLOTTED WALL INTO THE CLEAN GAS COMPARTMENT, THE INVENTION RESIDING IN THAT PROFILE MEMBERS ARE SECURED TOGETHER WITH THE FILTER POCKETS INTERMEDIATE THE SLOTS OF THE SLOTTED WALL EXTENDING VERTICALLY CONTINUOUSLY OVER THE HEIGHT OF THE SLOTS AND THE FILTER POCKETS, THE HEIGHT OF THESE PROFILE MEMBERS BEING SUCH THAT THEIR SIDES REMOTE FROM THE SLOTTED WALL ARE DISPOSED IN A COMMON PLANE SUBSTANTIALLY COINCIDING WITH THE PLANE OF THE VERTICAL EDGES OF THE SUPPORTING FRAMES WITHIN THE CLEAN GAS COMPARTMENT THEREBY FORMING INDIVIDUAL PASSAGES EACH COMMUNICATING WITH THE INTERIOR OF A FILTER POCKET. A KNOWN CLEANSING GAS NOZZLE COMMUNICATING WITH A SOURCE OF PRESSURE GAS AND HAVING A DISCHARGE OPENING EXTENDING OVER THE LENGTH OF THE PASSAGES FORMED BY THE PROFILES SUBSTANTIALLY IN THE PLANE OF THEIR FREE SIDES IS MOVABLE IN LATERAL DIRECTION PAST THE ROW OF FILTER POCKETS. WHENEVER THE MOUTH OF THE CLEANSING GAS NOZZLE BECOMES ALIGNED WITH A PASSAGE COMMUNICATING WITH THE INTERIOR OF THE RESPECTIVE FILTER POCKETS THE FLOW OF GAS WILL BE REVERSED THEREBY REMOVING THE DUST ACCUMULATED AT THE OUTSIDE OF THE FILTER POCKET.

Inventors

• 👤 Adolf Margraf

Bibliographic Details