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An apparatus and method sinters or partially sinters green pellets in a selected temperature range to make proppant particles as the green pellets pass between an electrical arc and a gas flowing in the vortex path and exit an underflow of a vessel. The vessel has an overflow disposed in a first end, an underflow disposed in a second end, a middle portion having a circular cross-section disposed between the first end and the second end, and a tangential inlet proximate to the first end such that a gas from the tangential inlet flows along a vortex path from the first end to the second end of the vessel. A first electrode extends through the overflow and a second electrode extends through the underflow. The electrodes are used to create the open electrical arc. One or more feed tubes extend through the overflow proximate to the first electrode.
An apparatus and method sinters or partially sinters green pellets in a selected temperature range to make proppant particles as the green pellets pass between an electrical arc and a gas flowing in the vortex path and exit an underflow of a vessel. The vessel has an overflow disposed in a first end, an underflow disposed in a second end, a middle portion having a circular cross-section disposed between the first end and the second end, and a tangential inlet proximate to the first end such that a gas from the tangential inlet flows along a vortex path from the first end to the second end of the vessel. A first electrode extends through the overflow and a second electrode extends through the underflow. The electrodes are used to create the open electrical arc. One or more feed tubes extend through the overflow proximate to the first electrode.
Apparatus and method for sintering proppants
FORET TODD (author)
2015-12-23
Patent
Electronic Resource
English