Abstract: A collecting electrode panel assembly for use in an electrostatic precipitator (10) comprises a plurality of collecting electrode plates (22) disposed in successively aligned relationship beneath and suspended from an electrode support beam (14) supported upon support beam (60) suspended from the upper region of the housing (12) of the electrostatic precipitator. The support beam (60), comprises an elongated flange support beam having a generally J-shaped cross-section having an upright leg (62), a base flange (64) extending transversely outward from the lower end of the upright leg, and a lip flange (68) extending upwardly from the outward edge of the base flange (64). The base flange (64) provides a support surface (66) upon which the end of the electrode support beam (14) rests. Notches (80) are cut in the lip flange (68) of the support beam (14) at appropriate locations to receive at each location the end of an electrode support beam (14).

Abstract: A cover cap (40) is provided for covering the open end of a support insulator (38) having a discharge electrode hanger rod (28) passing coaxially therethrough. The cover cap (40) comprises a top (42) and a sloping side wall (44) extending coaxially outwardly and downwardly from the perimeter edge (54) of the top (42) and having a radial lip (46) and an axial lip (48) extending outwardly at substantially right angles to each other from its lower perimeter surface. A tubular gas injection nozzle (92) having an elbow subtending an angle of 135 degrees, is provided in the sloping side wall (44) for passing a jet of scavenging gas into the interior region encompassed by the sloping side wall (44). At least one access opening (70) is provided in the sloping side wall for permitting access into the interior region encompassed by the sloping side wall (44).

Abstract: In a spray dryer apparatus (20) wherein a slurry (30) is contacted with a hot drying gas (12), a spray head assembly comprising an annular swirler vane assembly (42) disposed about the gas inlet in the roof of the spray dryer (20), an atomizing spray head housing (44) disposed coaxially within the center of the swirler vane assembly, an elongated guide tube (46) extending upwardly from the spray head housing (44), an atomizing spray head (58) disposed in the spray head housing with its spray tip (60) extending into the spray dryer (20), an elongated seal sleeve (72) extending downwardly from the guide tube into the spray head housing, and a support tube (70) extending upwardly from the spray head (58) into the seal sleeve (72). The support tube (70) is slidably translatable with the seal sleeve (70) and the guide tube (46) so that the spray head (58) attached to the support tube may be withdrawn upwardly through the guide tube for removal for inspection and maintenance.