Abstract: A spray dryer absorber operative for removing gaseous pollutants from a hot process flue gas and a vibrator device for removing accumulated deposits therefrom is provided. The spray dryer absorber includes a spray dryer chamber equipped with a plurality of dispersers and atomizers mounted at a roof of the spray dryer chamber. The vibrator device is operative to remove accumulated deposits from the spray dryer absorber and its components, such as its dispersers and atomizers, to avoid spray dryer absorber performance interference caused by such deposit accumulations.

Abstract: A vibration motor assembly includes a vibration motor, an end cap having electrical contacts configured for supplying electrical power to the vibration motor, the end cap having a first connecting structure connecting the end cap to the vibration motor, and a capsule connected to the end cap to define a cavity. The vibration motor further has a shaft, and an eccentric mass is connected to the shaft. The vibration motor is configured to use electrical power to rotate the shaft and the eccentric mass to create a vibration effect. The end cap further has a second connecting structure connecting the capsule to the end cap. The vibration motor and eccentric mass are enclosed by the so-connected end cap and capsule, so as to enable the vibration motor assembly to withstand fabrication conditions.

Abstract: In a method of ultrasonically treating a substance disposed within a container an ultrasonic horn is positioned within the container with at least a portion of the horn submerged in the substance. The horn is ultrasonically excited to thereby ultrasonically energize the substance. An agitating member is rotated within the substance while the ultrasonic horn is excited to agitate the substance as the substance is ultrasonically energized.

Abstract: In an ultrasonic treatment system for ultrasonically treating a substance, an elongate ultrasonic horn is positionable within the substance and excitable to vibrate ultrasonically to energize the substance. The horn has a longitudinal axis and an outer surface for contact with the substance. An agitating member of the system is disposed on the ultrasonic horn and is rotatable about the longitudinal axis of the horn during ultrasonic vibration of the horn to agitate the substance.

Abstract: A vibrator includes a tubular element including one or more sections, the upper end of which is provided with an element for suspension from a hoisting and/or guiding machine and the lower end of which is connected to an endpiece successively including a damper-isolator, a generator of vibrations (4) and a tip (5). This vibrator is made in several detachable elements assembled end-to-end by an element of a plurality of fixing screws (30), the heads or nuts of which are accessible by an element of at least one cavity (27) provided in at least one of the elements and at least one removable locking part (C1, C2) which engages into the cavity (27) by bearing upon the heads or the nuts, so as to ensure the captivity of the screws (30) and to avoid that the assembly be able to dissociate during use.

Abstract: A concrete vibrator head includes an elongated body having a front end and a back end. The back end of the vibrator head is attached to a rotating shaft which causes the vibrator head to vibrate at a desired vibration frequency. The elongated body is tapered from the front end to approximately halfway towards the back end. This taper may be defined by a continuous straight line slope of the outer surface of the elongated body, or a stepped slope formed from a series of interconnected cylindrical portions of the elongated body which increase in diameter from the front end to approximately midway on the elongated body of the vibrator head.

Abstract: In an ultrasonic treatment system for ultrasonically treating a substance, an elongate ultrasonic horn is positionable within the substance and excitable to vibrate ultrasonically to energize the substance. The horn has a longitudinal axis and an outer surface for contact with the substance. An agitating member of the system is disposed on the ultrasonic horn and is rotatable about the longitudinal axis of the horn during ultrasonic vibration of the horn to agitate the substance.

Abstract: The invention relates to the setting of poured concrete and the need to avoid air pockets and voids within the setting slurry. At least one reinforcing rod, and preferably a grid of rods, is embedded in the poured concrete. The setting slurry is vibrated by vibrating the rod or grid. A vibrator receives the protruding end of the rod and is vibrated to vibrate the rod.

Abstract: A vibrator having a metallic cylindrical core with a shaft extending concentrically therethrough. An eccentric weight is mounted on the shaft and is rotatable thereby to vibrate said vibrator. The core is surrounded by a sheath of material and apertures extend through said sheath to bare portions of said core. The external surface of the sheath is configured to present upstanding wall portions facing the direction of vibration whereby, when the vibrator is immersed in a wet slurry of concrete and vibrated therein, the upstanding wall portions drive shockwaves into the slurry.

Abstract: A vibrator having a metallic cylindrical core with a shaft extending concentrically therethrough. An eccentric weight is mounted on the shaft and is rotatable thereby to vibrate said vibrator. The core is surrounded by a sheath of material and apertures extend through said sheath to bare portions of said core. The external surface of the sheath is configured to present upstanding wall portions facing the direction of vibration whereby, when the vibrator is immersed in a wet slurry of concrete and vibrated therein, the upstanding wall portions drive shockwaves into the slurry.

Abstract: A portable, hand-held concrete vibrating system employs a pendulous vibrator driven by a high speed, two-cycle motor that operates up to speeds of between 5000 and 6000 RPM. An elongated, rod-like frame supporting the motor is connected at its remote end to a vibrator head adapted to be immersed in plastic concrete. A pivoted weight generally coaxially disposed within the head forcibly causes vibrations in response to internal impacts. A compensating system within the head torsionally couples the flexible drive cable to the pendulous weight and accommodates axial and rotational stresses caused by high speed rotation. The compensating system, preferably disposed between sets of self aligning bearings, comprises a rigid power input end coupled to a rigid power output end by a resilient, preferably buna rubber midsection.

Abstract: A vibrator is provided which includes a free rolling rotor contained in a housing having a nose end portion. The rotor has a number of pockets for receiving ball pistons. Each pocket communicates with a valve port. Pressurized fluid sequentially passes through each valve port to the pocket with which the particular valve port communicates. In the pocket accessed by the pressurized fluid, a fluid chamber is created. The ball piston prevents the escape of fluid outwardly of the rotor. The pressurized fluid, in each accessed fluid chamber, causes the rotor to roll in the housing. The rotor rolling around within the housing applies centrifugal forces to the inside wall of the housing to produce vibrations. The fluid escapes from the rotor using the same valve ports which deliver the pressurized fluid. In addition, an assembly is provided in the housing to prevent the separation of the nose end portion from the housing when the nose end portion becomes worn and tends to separate from the housing.