Storage and Flow of Solids
01 Jan 1964-
About: The article was published on 1964-01-01 and is currently open access. It has received 585 citations till now. The article focuses on the topics: Flow (mathematics).
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TL;DR: In this paper, a particular kinematic model presented by Waters and Drescher is revised to incorporate the presence of the funnel flow zone, and the effect of stresses developing during flow.
27 citations
Patent•
13 Jan 1993
TL;DR: In this paper, a continuous discharge centrifugal concentrator with a retention zone for accumulating the concentrate was proposed. But this method is not suitable for high-density particles, as it requires a large number of mass-flow hoppers at the retention zone, with flow control devices to control the discharge from the hoppers.
Abstract: Prior centrifugal concentrators for separating higher density particles from a slurry have not combined effective separation of concentrate with continuous discharge of the concentrate. The present invention provides a continuous discharge centrifugal concentrator having a retention zone for accumulating the concentrate in which a plurality of mass-flow hoppers are provided at the retention zone, with flow control devices to control the discharge of concentrate from the hoppers.
26 citations
TL;DR: In this paper, the authors used the radial stress field to predict the exact stress and velocity fields in an incompressible, cohesionless, Coulomb material discharging from a conical hopper for a great variety of boundary conditions imposed on the top surface.
26 citations
TL;DR: In this article, the relationship between bulk unconfined yield strength and particle shape was examined and it was shown that the number of particle contacts per adjacent particle and the direction of these contacts are key parameters influencing the bulk strength.
26 citations
Patent•
25 Jul 1989TL;DR: In this paper, a process control system includes a remote control computer connected by two pairs of electrical conductors to a local control computer and a monitor computer, where the monitor computer provides real time information about an operating characteristic of the process, and the local controller computer receives feedback information from a characteristic of a process which is controlled by a control signal provided by the local control signal in response to the set point, the real-time information and the feedback information.
Abstract: A process control system includes a remote control computer connected by two pairs of electrical conductors to a local control computer and a monitor computer. The remote control computer provides a set point from entered control information, the monitor computer provides real time information about an operating characteristic of the process, and the local control computer receives feedback information from a characteristic of the process which is controlled by a control signal provided by the local control computer in response to the set point, the real time information and the feedback information. The monitor computer also provides information about monitored characteristics to the remote control computer. The real time information provided by the monitor computer to the local control computer is transmitted separately from the two pairs of electrical conductors.
26 citations