Classifications

• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
  • C10B15/00—Other coke ovens
  • C10B15/02—Other coke ovens with floor heating
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
  • C10B21/00—Heating of coke ovens with combustible gases
  • C10B21/10—Regulating and controlling the combustion

Definitions

• the invention relates to a device for controlling inlet openings in a manifold for combustion air on the ceiling of coke oven chambers of the type "heat recovery”, is introduced by the combustion air in a manifold, which is used to supply primary combustion air for the openings of the coke oven chamber is used in the coke oven chamber ceiling, whereby a directed, wind-protected and simultaneous introduction of primary combustion air into the openings of Koksofensch- cke a coke oven chamber, and the pressure drop through the arrangement of the inlet openings in the manifold by the short path is less than in the prior art, Also claimed is a method by which primary combustion air can be admitted into the gas space of a coke oven chamber, with simultaneous control of the inlet opening valves of the manifold is possible, and further a crizu ng the sliding door in adaptation to the coking is possible.
• Coke ovens of the type "non-recovery” or “heat-recovery”, the latter being equipped with a device for heat recovery are equipped with a coke oven chamber, which from the side Koksofenschrentn, a coke oven chamber floor, a coke oven chamber ceiling, which in the Typically, has a vault mold, and frontal coke oven chamber walls, the latter containing the Koksofenschen provided for loading and on the opposite side of the coke oven chamber for discharge.
• These types of furnaces are heated by the coking gas, which forms from the coking cake to be coagulated during coking.
• the coke oven chamber is loaded during operation only up to a certain height, so that over the coal cake a gas space remains free.
• the forming gas space is also called Primäreuerraum, and serves to burn the resulting directly from the coal cake coking gas, which is partially burned with a stoichiometric amount of combustion air, the so-called primary air.
• CONFIRMATION COPY Distribution system feeds the openings in the coke oven chamber ceiling. These can also be controlled in order to be able to supply an optimum amount of combustion air at all times, which is adapted to the demand for combustion air, depending on the course of the coking process.
• WO2010102707A1 relates to a device and a method for metering primary combustion air, which flows through an air supply into the primary combustion chamber of a coke oven chamber, this device being, for example, as an inverted cup, as a downwardly open hollow cone or as a solid cone, and This device is manually or automatically inserted or withdrawn into the device for air supply, so that the device for metering and covering the air supply in a number of stages from two to infinity closes.
• WO2006128612A1 teaches a device for combustion of coking gas in a coking chamber of a "non-recovery type” or “heat recovery type” coke oven, wherein a plurality of primary air inlet openings are arranged in the ceiling of each furnace chamber, that the coking gas produced during the coking is uniformly brought into contact with the desired amount of primary air for the partial combustion of the coking gas, these primary air inlets above the furnace for each furnace chamber are separately combined by an air supply system, the air supply systems of the individual Furnace chambers are connected to an air supply system common to many furnace chambers, and provided between the common air supply system and the air feeds of the individual furnace chambers each having a control element for varying the amount of primary air over the cooking time.
• the common air supply system can be subjected to a slight, constant overpressure
• the present invention solves this problem by a device comprising a manifold on the ceiling of the coke oven chamber, the combustion air through at least two openings in the coke oven chamber ceiling in the coke oven chamber of a coke oven type "non-recovery” or “heat recovery” initiates, and the manifold inlet openings, said inlet openings are located on the manifold within the space whose base is formed by the ceiling of the coke oven chamber.
• the connection of the manifold to the openings in the coke oven chamber ceiling takes place via a branch in the manifold, while the openings are closed so that they receive the combustion air only via the manifold.
• the inlet openings are designed as sliding doors and are opened or closed via a connecting element with a circumferential spindle.
• the manifold is also located in its extension in most embodiments within the space whose base is formed by the ceiling of the coke oven chamber. The manifold thus has an extension that does not go beyond the ceiling of the coke oven chamber.
• Claimed is in particular a device for controlling openings in a manifold for combustion air on the ceiling of coke oven chambers of the type "non-recovery” or “heat recovery” comprising
• the suction of the primary combustion air takes place by the negative pressure in the coke oven chamber in connection with the chimney effect, which results from the installation of the manifold.
• the spindle can be moved clockwise or counterclockwise until the sliding doors are fully opened or closed.
• the other sliding flaps, which are not connected to the spindle are connected via a linkage with the sliding flaps, which are connected to the spindle. This allows a simultaneous and independent control of all inlet openings, which depends only on the movement of the spindle.
• a further embodiment of the invention are located on the coke oven chamber ceiling four to eight openings in two rows, which are connected to two manifolds, so that a manifold is connected to each of two to four branches with two of the four openings.
• the connecting elements may be a chain, a steel cable, or a linkage. These provide a mechanical connection from the sliding doors to the spindle.
• a coke oven bank consisting of coke ovens of the type mentioned is used for the cyclical coking of coal by loading a coke oven with a coal cake intended for coking, and leaving over the coal cake a gas space as Primäreuerraum for substoichiometric combustion of the coking gas is provided, and
• the partially burned coking gas from the primary heating space is passed through gas channels disposed in the side coke oven chamber walls into the flue gas channels below the coke oven chamber where the partially burned coking gas is completely burned with a superstoichiometric amount of combustion air, and
• At least two openings in the coke oven chamber ceiling are connected to a branch which opens into a manifold through which the openings are supplied with primary combustion air, said combustion air through inlet openings with sliding flaps, which are moved via connecting elements by a rotating spindle and thereby open the inlet openings or close, is admitted in the manifolds.
• the air supply via the sliding flaps is controlled according to the expected course of the air requirement in a standardized coking cycle or on the basis of measured values of the pressure or the temperature in the coke oven.
• the supply of combustion air can be adapted at any time to the need for combustion air. This depends on the course of the coking process, as this is exemplified in WO2010034383A1.
• the rotary spindle is electrically operated.
• the electric drive mechanism is advantageously located in a protective housing, which protects the drive mechanism from the high temperatures on the coke oven chamber ceiling.
• the rotary spindle is actuated via a separate linkage from a control point outside the coke oven.
• the linkage can be equipped with further mechanical transmission devices, which enable a safe operation of the rotary spindle, even from a point outside the coke oven chamber or the coke oven bank.
• the invention has the advantage of allowing a common directional supply of primary combustion air into the openings of coke oven chambers, wherein the supply of combustion air should be carried out without overpressure on a shortest possible Zu enclosuresweg, so that the air supply directly and without long reaction times can.
• FIG.1 shows an arrangement of two manifolds on the ceiling of a coke oven chamber with a view from above.
• 2 shows a coke oven chamber with a collecting line according to the invention with sliding flaps on the coke oven chamber ceiling in a lateral view.
• FIG. 1 shows a coke oven chamber ceiling (1) which is equipped with eight openings (2) for the inlet of primary combustion air (3).
• On the ceiling (1) are further two manifolds (4) for primary combustion air (3), which are connected via branches (5) with the openings (2), so that a total of four openings (2) with a manifold (4 ) are connected.
• Other inlet possibilities for combustion air (3) are not present on the furnace roof (1), so that the combustion air can only reach the coke oven chamber (1) via the collecting lines (4).
• the manifolds (4) have via the branches (5) inlet openings (6), which supply the manifolds (4) with combustion air (3).
• the central inlet openings (6) are provided with sliding flaps (7) which are connected via a chain (8) as a connecting element (8) to a rotary spindle (9).
• the rotary spindle (9) opens or via the rotational movement (9a) and the connecting element (8) closes the sliding flaps (7) which are closest to the rotary spindles (9).
• the other sliding flaps (7) which are not connected to the spindle (9) are connected via a linkage (10) with the sliding flaps (7), which are connected to the spindle (9).
• the rotary spindles (9) are connected to an electric drive mechanism (11) through which they are driven, which sits in a protective housing (11a) and which is driven via electrical control lines (11b).
• the coke oven chamber doors (12) on both frontal sides (13) of the coke oven chamber (14) and the lateral coke oven chamber walls (15) can also be seen.
• FIG. 2 shows a coke oven chamber (14) with frontal coke oven chamber walls (13), coke oven chamber doors (12), a coke oven chamber floor (16) with overlying coal cake (16a), lateral flue gas ducts (15a, "downcomer”), flue gas ducts (FIG.
• the openings (2) in the coke oven chamber ceiling (1) are connected via branches (5) to a manifold (4).
• the collecting line (4) has on the upper side inlet openings (6), which are covered with sliding flaps (7).
• a rotary spindle (9) In addition to the manifold (4) is still a rotary spindle (9), which is connected to the nearest sliding flaps (7).
• These sliding flaps (7) In turn are connected via a linkage (10) to the remaining sliding flaps (7a) lying behind them.
• a rotary movement (9a) By a rotary movement (9a), these sliding flaps (7,7a) move and thereby open or close the inlet openings (6).

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• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Materials Engineering (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Organic Chemistry (AREA)
• Combustion & Propulsion (AREA)
• Coke Industry (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=48953351

Family Applications (1)

Country Status (6)

Families Citing this family (4)

Family Cites Families (4)

• 2012
  • 2012-07-26 DE DE201210014742 patent/DE102012014742A1/de not_active Withdrawn
• 2013
  • 2013-07-05 TW TW102124255A patent/TW201412969A/zh unknown
  • 2013-07-12 EP EP13747786.5A patent/EP2877554A1/de not_active Withdrawn
  • 2013-07-12 BR BR112015001591A patent/BR112015001591A2/pt not_active IP Right Cessation
  • 2013-07-12 WO PCT/EP2013/002073 patent/WO2014015956A1/de active Application Filing
  • 2013-07-26 AR ARP130102675A patent/AR100194A1/es unknown

Non-Patent Citations (2)

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