A quick-connect-and-disconnect assembly is illustrated in a bag filter environment. The assembly is used to mount a nozzle pipe on a rectangular girder. The pipe includes a mounting clip with a body having a support foot forming an inverted L-shaped configuration to engage over an upper corner of the girder. The body engages flush against the girder. At the bottom, the clip has a latching lip to engage behind a depending flange on the girder, and the lip is urged upwardly into latching engagement by an elongated coil-spring retainer which is resiliently engaged between the support foot and the top wall of the girder. Means is provided on the flange to positively locate the nozzle pipe at the proper position along the length of the girder.
A bracket assembly for interconnecting support struts of the framework of a domical structure such as a geodesic dome. The bracket assembly includes a central annular hub member and a bracket member for interconnecting each of a plurality of circumferentially arranged and radially extending struts to the hub member. The outer end of each bracket member includes a pair of spaced apart side members which straddle the strut and are mounted to the strut by a pair of bolts. The inner end of each bracket member includes a pair of axially spaced apart triangularly shaped bosses located on opposite ends of the hub which are mounted to the hub by a bolt extending through both bosses at a location spaced radially inwardly of the hub member.
A reverse pulse cleaning system for use in a bag house filter including a blow tube (2) having outlet holes (3) to direct high velocity air pulses into filter bags to be cleaned. The systems includes a nozzle (1) having a control formation between the inlet and outlet ends of the nozzle. The control formation determines air flow characteristics such as velocity and direction of flow emerging from the outlet holes (3) and can improve uniformity and effectiveness of filter bag cleaning. A clampable and releasable fixing of the nozzle (1) to the blow tube allows replacement of the control formation with one of different characteristics during manufacturing or insitu fine tuning. The fixing allows the precise alignment of nozzles (1) on assembly which reduces the need for costly precision in forming the blow tube outlet holes (3). The system may include a tube (9) forming part of the nozzle with adjustable radial holes (13) to induce secondary air into the cleaning flow and may include a venturi (10) to induce tertiary air.
A reverse pulse cleaning system for use in a bag house filter including a blow tube (2) having outlet holes (3) to direct high velocity air pulses into filter bags to be cleaned. The systems includes a nozzle (1) having a control formation between the inlet and outlet ends of the nozzle. The control formation determines air flow characteristics such as velocity and direction of flow emerging from the outlet holes (3) and can improve uniformity and effectiveness of filter bag cleaning. A clampable and releasable fixing of the nozzle (1) to the blow tube allows replacement of the control formation with one of different characteristics during manufacturing or insitu fine tuning. The fixing allows the precise alignment of nozzles (1) on assembly which reduces the need for costly precision in forming the blow tube outlet holes (3). The system may include a tube (9) forming part of the nozzle with adjustable radial holes (13) to induce secondary air into the cleaning flow and may include a venturi (10) to induce tertiary air.
