Abstract:
A closed system (2) for gaining sellable petroleum coke pieces out of solidified petroleum coke in a coke drum unit (4, 8), comprises a coke drum unit (4, 8) containing solidified petroleum coke; a coke crushing unit (6, 10) for crushing petroleum coke into sellable petroleum coke pieces; a closed slurry pipe (12) leading petroleum coke slurry to a closed slurry pit (14); a dewatering bin unit (18, 20) for receiving petroleum coke slurry from the slurry pit (14), for collecting the sellable petroleum coke pieces and for leading filtered water and petroleum coke fines out of it; a closed drain water pit (24), separate from the slurry pit (14), for receiving the filtered water and the petroleum coke fines from the dewatering bin unit (18, 20); a water settling tank (28) receiving the filtered water and the petroleum coke from the drain water pit (24) and for separating the petroleum coke fines from the water such that the petroleum coke fines collect in the bottom part of the water settling tank (28), and for leading the petroleum coke fines into the slurry pit (14) where they mix with the petroleum coke slurry; a clean water tank (29) for receiving the purified water from the upper part of the water settling tank (28); and a removal unit (52) for removing the sellable petroleum coke pieces from the dewatering bin unit (18, 20).
Abstract:
A presente invenção consiste na adição de biomassa, mais precisamente sacarose, que pode ser açúcar, melaço de soja, cana de açúcar ou outro tipo de melaço na água utilizada no processo de apagamento do coque produzido em forno vertical ou horizontal. A adição da biomassa pode ser manualmente ou automaticamente, ou seja o açúcar e ou melaço é descarregado no recipiente contendo água e a mistura é feita através da diluição da biomassa na água. A percentagem de biomassa adicionada à água é feita entre 5 e 30%. O carbono contido na biomassa é depositado na superfície da pedra de coque, proporcionando uma elevação da resistência ao impacto e a abrasão (elevação do Drum índex ou Micum) do coque que reduz a degradação das pedras de coque no processo de manuseio entre o local de produção até o local de consumo. Esse aumento de resistência nas pedras de coque traz como benefício uma elevação do tamanho médio das pedras, uma redução na emissão de partículas finas para a atmosfera. Esse aumento no tamanho médio das pedras de coque irá proporcionar uma melhora no processo de produção do ferro gusa no alto forno.
Abstract:
Die Erfindung betrifft eine Vorrichtung zum Entleeren eines gelöschten oder ungelöschten Kokses aus einem Kokslöschwagen in eine Aufnahmevorrichtung, wobei sich neben mindestens einer Koksofenkammer eine Verlängerung der Ausdrückmaschine befindet, welche in einer Linie mit den Koksofenkammern angeordnet ist, und welche von der Ausdrückmaschine zu betätigen ist, und sich von der Koksofenbank aus hinter dem Löschwagen eine Aufnahmevorrichtung befindet, in die der Koks aus dem Löschwagen mit der Verlängerung ausdrückbar ist, wobei es sich bei der Aufnahmevorrichtung bevorzugt um eine Rampe handelt. Die Erfindung betrifft auch ein Verfahren zur Entleerung des heißen Kokses aus einem Kokslöschwagen in eine Aufnahmevorrichtung, durch das Kapazitätsengpässe der Löscheinrichtung ausgeglichen werden, so dass der Koks nach Beendigung der Verkokung nicht in der Koksofenkammer verbleiben muss, oder es können Störungen der Löscheinrichtung kurzfristig ausgeglichen werden.
Abstract:
The present invention deals with a method to produce uniform quality coke for a blast furnace by quenching coke (18) at a pre-determined rate to produce coke with essentially uniform moisture; further, this invention possesses specific features to produce coke of uniform stability (strength) by equilibrating the temperature of the coke in a heat soaker (43) prior to its being quenched. Uniform moisture and uniform stability are very important factors that contribute to the efficient operation of the blast furnace to result in lowering the cost of making a ton of iron. This method is carried out under pressure, in a closed system, and in an environmentally acceptable manner with minimum formation of CO2. Further, the method possesses additional features which lead to the production of coke of higher stability than obtained conventionally.
Abstract:
A process for the cooling of and the removal of dust from high-temperature coke in at least two stages, whereby the coke is cooled in the first stage to less than about 800 DEG C. In this first cooling stage (1), the coke is cooled to a temperature of between 200 DEG and 800 DEG C, and preferably to between about 400 and 650 DEG C; it is then quickly and continuously drawn through a water bath (8), after which it is held in the steam-laden atmosphere of a sealed re-evaporation chamber (14).
Abstract:
Die vorliegende Erfindung betrifft eine Vorrichtung zur Reinigung von verunreinigtem Kokslöschwasser, umfassend einen Auffangbehälter (2) zur Aufnahme von verunreinigtem Kokslöschwasser sowie eine Reinigungseinrichtung (4) zur Abtrennung von Partikeln aus dem Kokslöschwasser, wobei die Reinigungseinrichtung (4) Filtermittel (4.1) zur Kuchenfiltration enthält.
Abstract:
The present technology describes methods and systems for an improved quench tower. Some embodiments improve the quench tower's ability to recover particulate matter, steam, and emissions that escape from the base of the quench tower. Some embodiments improve the draft and draft distribution of the quench tower. Some embodiments include one or more sheds to enlarge the physical or effective perimeter of the quench tower to reduce the amount of particulate matter, emissions, and steam loss during the quenching process. Some embodiments include an improved quench baffle formed of a plurality of single-turn or multi-turn chevrons adapted to prevent particulate matter from escaping the quench tower. Some embodiments include an improved quench baffle spray nozzle used to wet the baffles, suppress dust, and/or clean baffles. Some embodiments include a quench nozzle that can fire in discrete stages during the quenching process.
Abstract:
A method and apparatus for quenching metallurgical coke made in a coking oven. The method includes pushing a unitary slab of incandescent coke onto a substantially planar receiving surface of an enclosed quenching car so that substantially all of the coke from the coking oven is pushed as a unitary slab onto the receiving surface of the quenching car. The slab of incandescent coke is quenched in an enclosed environment within the quenching car with a plurality of water quench nozzles while submerging at least a portion of the slab of incandescent coke by raising a water level in the quenching car. Subsequent to quenching the coke, the planar receiving surface is tilted to an angle sufficient to slide the quenched coke off of the planar receiving surface and onto a product collection conveyer and sufficient to drain water from the quenched coke.
Abstract:
Systems and methods for reducing atmospheric emission of hydrocarbon vapors by flashing off hydrocarbon vapors in an overflow drum where the pressure is ultimately reduced to 0 psig and then flashing off any remaining hydrocarbon vapors in an overflow tank wherein the pressure in the overflow tank is reduced to 0 psig by an overflow ejector.