Abstract:
A solid particle distribution controller includes a plurality of division plates proximate a division between an upstream solid particle conveyance pipe and a plurality of downstream pipes. The solid particle distribution controller also includes a plurality of extension plates. Each of the extension plates is movably mounted proximate to a respective division plate for movement in an upstream and downstream direction with respect to the division plate. The plurality of extension plates are configured and adapted for motion in the upstream and downstream direction independent of one another to extend upstream of the division plates as needed to improve solid particle distribution among the downstream pipes.
Abstract:
A fossil-fuel-fired system, which includes an emissions-control-agent dispenser, a furnace, an emissions monitor and, optionally, a controller, is disclosed. The emissions-control-agent dispenser provides a prescribed amount of organic-emissions-control agent, such as, for example, an opacity-control agent to the fossil-fuel-fired system. The furnace includes an exhaust communicating with the atmosphere. The emissions monitor is capable of measuring at least one property of the flue-gas communicated through the exhaust to the atmosphere. For example, when an organic-emissions-control agent is an opacity-control agent, the emissions monitor has the capability of at least measuring opacity. When included, the controller communicates with at least the emissions-control-agent dispenser and the emissions monitor.
Abstract:
An exhauster (16) is provided having an improved fan assembly (26) for exhausting coal through an exhauster fan housing (36), the exhauster fan assembly (26) being mountable within the housing (36) on a shaft (34) for rotation about a shaft rotational axis. The exhauster fan assembly (26) includes a plurality of blades (42) and a hub (44). The exhauster fan assembly (26) also includes a hub protector assembly (54) having a wear plate (56) and wear plate connector means for connecting the plate (56) to at least one of the free end (52) of the shaft (34) and the free end (48) of the hub (44).
Abstract:
An apparatus for separating particles composed of a mixture of particles with differing physical and chemical characteristics comprising: a comminutor (201, 202) for reducing the size of the particles; a removal mechanism (7) for removing particles between the feed (3) and the comminutor; a removal mechanism (8) for removing particles from the comminutor to a size classification apparatus (2); a mechanism (16) for returning the oversized particles back to the comminutor or discharging them to a reject stream (17); and a magnetic and electric mechanism (figure 9) for separating the particles. A method for separating includes: reducing the size of the particles; removing the particles from comminution; providing particles to a separation mechanism; separating the particles based on size, density or electric and magnetic properties; and returning the appropriate particles to the comminutor.
Abstract:
Bei einer Vorrichtung zum Einbringen von Abfallstoffen und/oder alternativen Brennstoffen in eine Klinkerherstellungsanlage, die Vorrichtung umfassend ein rohrförmiges Gehäuse (2) mit einem zur Rohrachse (3) im wesentlichen konzentrisch rotierbar gelagerten und zur Rotation antreibbaren Rotor (4) mit einer Mehrzahl von auf dem Umfang des Rotors (4) angeordneten Schlagelementen (5), schließt an das Gehäuse (2) wenigstens eine Leitung (6) für die Zufuhr der Abfallstoffe und/oder alternativen Brennstoffe und eine Austragsöffnung (7) quer zur Rotationsachse (3) des Rotors (4) an, wobei die Schlagelemente (5) als Reihen (17) von Drähten (16) ausgebildet sind.
Abstract:
A computer-based method and a computing device (3) for automatically providing control parameters for a plurality of coal mills (5a, 5b, 5c) supplying coal powder for example to a furnace (7) of a power plant is proposed. The method comprises (a) acquiring a multiplicity of operation variables indicative of a load of an individual coal mill for each of the coal mills by measuring actual parameters indicative of a coal mill operation; (b) acquiring a demand variable indicative of a coal demand from the plant; (c) supplying the acquired multiplicity of operation variables and the demand variable to a computing system; (d) calculating the control parameters based on the multiplicity of operation variables and the demand variable using a multivariable calculation algorithm, in particular a model predictive algorithm; (e) providing the calculated control parameters for controlling an operation of each coal mill individually; and (f) repeating steps (a)-(e). Due to using a multivariable calculation algorithm for calculating the control parameters taking into account a multiplicity of actual operation variables and demand variables from components of the power plant, the coal grinding load may be optimally allocated to each individual coal mill thereby enabling high efficiency and high velocity ramp up or ramp down of the plant operation.