EP0100040B1 - Koksofentür mit einer Lamellendichtleiste - Google Patents

Koksofentür mit einer Lamellendichtleiste Download PDF

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Publication number
EP0100040B1
EP0100040B1 EP83106986A EP83106986A EP0100040B1 EP 0100040 B1 EP0100040 B1 EP 0100040B1 EP 83106986 A EP83106986 A EP 83106986A EP 83106986 A EP83106986 A EP 83106986A EP 0100040 B1 EP0100040 B1 EP 0100040B1
Authority
EP
European Patent Office
Prior art keywords
sealing
coke oven
layers
oven door
knife edge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP83106986A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0100040A3 (en
EP0100040A2 (de
Inventor
Kurt Dr. Lorenz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Still Otto GmbH
Original Assignee
Still Otto GmbH
Carl Still GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Still Otto GmbH, Carl Still GmbH and Co KG filed Critical Still Otto GmbH
Publication of EP0100040A2 publication Critical patent/EP0100040A2/de
Publication of EP0100040A3 publication Critical patent/EP0100040A3/de
Application granted granted Critical
Publication of EP0100040B1 publication Critical patent/EP0100040B1/de
Expired legal-status Critical Current

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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
    • C10B25/00—Doors or closures for coke ovens
    • C10B25/02—Doors; Door frames
    • C10B25/16—Sealing; Means for sealing

Definitions

  • the invention relates to a coke oven door with a metal sealing strip running around the door body, which is tightly held with a partial area on the door body and held linearly displaceably in the furnace axis by means of a holding device and is connected to the other partial area with a sealing cutting edge which can be pressed onto the door frame.
  • the known coke oven doors used to seal horizontal chamber coking ovens are pressed onto the door frame with the aid of pressure springs or tensioning springs in order to prevent gases from escaping from the coke oven during the coking process.
  • the coke oven doors have metallic sealing strips running around the door body, which are designed as flat irons with a sharpened end or as angle irons, for example as Z-profiles (DE-C-23 09 032).
  • the free legs of these sealing strips are each loaded by springs which are arranged in spring housings or similar structures in such a way that the sealing edge of the sealing strips rests tightly on the door frame or is pressed thereon.
  • the known sealing strips in particular in the form of straight flat irons, are pressed onto the door body via clamping devices, above all hook-head screws, and driven forward by means of a hammer blow.
  • the Z-profile bars known from DE-C-23 09 032 can also be driven by hammering if they are held on the door body by suitable holding devices and are loaded at the end by spring-loaded pressure plungers. Sealing strips with a U-profile and with a Z-profile are also known from DE-C-28 45 045.
  • the sealing strips When setting or pressing on the known sealing strips, in particular the profile sealing strips, by hammering, the sealing strips are often deformed in such a way that they can no longer fulfill their purpose and must be replaced. This is particularly the case if, due to excessive hammer blows, they can no longer be applied tightly to the furnace frame as a whole or in parts. Since they cannot be restored to their original shape without great effort and because they have too little travel, they are usually replaced by new ones, which requires considerable maintenance and investment.
  • DE-C-738 975 describes a coke oven door with a plurality of web-shaped metal seals made of thin sealing webs with a layer of asbestos that can be pressed against a smooth bearing surface, with intermediate layers of asbestos, the sealing webs each consisting of individual parts that are rigid or resilient against the smooth contact surface are pushable. Because of the spacing of the individual sealing webs from one another, cleaning the intermediate spaces is very difficult, so that the sealing webs are either easily damaged or the caking between the sealing webs leads to leaks.
  • DE-B-22 29 953 presents differently profiled sealing strips which, although clamped together on the door body, each come to rest flat on the sealing surfaces of the door frame. In contrast to the sharp-edged sealing blades pressed against the door frame, any tar deposits sitting on the door frame cannot be cut through, so that leaks can occur. In addition, undesirable deformations of the sealing strips easily occur.
  • DE-A-29 25 730 shows a coke oven door with a sealing strip made of differently shaped flexible slats, one of which is designed as a sealing cutting edge.
  • the holding device on this slat is rigidly attached to the door body and not linearly displaceable in the furnace axis. Compensation for any deformation of the door frame or door body is not possible by adjusting the sealing edges or by changing the contact pressure.
  • the invention has for its object to provide a coke oven door with a sealing strip which is not deformed even with strong hammer blows and which is to be used from the basic structure as a straight or curved sealing strip.
  • the sealing strip is composed of a multiplicity of thin layers or lamellae and an associated, preferably welded, one-piece sealing cutting edge is placed approximately at right angles to the layers and is loaded by a pressure tappet.
  • an associated one is made from one at a right angle in front of the layers Piece of existing sealing cutter set and loaded via the pressure ram.
  • the sealing strip and sealing cutting edge are expediently connected to one another by welding, which can also be carried out at the place of use, ie in the area of the coke oven, with little effort.
  • such strips can also be made in advance in the factory and then attached accordingly.
  • the layers are formed from 0.2 to 0.8 mm, preferably 0.5 mm, sheets. These sheets are close to one another. to be attached one above the other by means of the known holding devices on the door body by frictional engagement and, as described, can be advanced jointly and uniformly in the direction of the furnace axis by hammer blow or other suitable devices.
  • the uniform arrangement of the individual layers forming the sealing strip and their uniform advancement is ensured according to the invention in that the layers are connected to one another at the ends, preferably welded. Surprisingly, it has been shown that this point-only or linear connection at the respective edges is sufficient to ensure the intimate bond between the individual layers. It may be expedient to connect the layers with the free partial area with a one-piece sealing cutter which lies evenly on the door frame and which can easily be sharpened to suit the circumstances. This sealing edge also acts as a kind of abrasion protection for the individual layers.
  • V2A sheet or a similar material can be used as material for the individual layers, if the temperature permits this.
  • the layers consist of corrosion-resistant and stress-crack-insensitive material such as a chromium-molybdenum-titanium alloy.
  • a sealing strip has a long service life because it is also resistant to aggressive components of the gas. Such aggressive components of the gas could otherwise penetrate into the material and lead to corrosion, especially in the case of profile sealing membranes, which change their position by removing the console door and reinserting them.
  • sealing strips in which two to ten, preferably five, layers are combined to form a sealing strip.
  • the sealing cutting edge according to the invention is expediently a profile equipped, drawn or pressed with an attachment for the layers.
  • the sealing cutting edge can be produced in one work step and then connected, in particular welded, to the individual layers or the group of layers by simple welding.
  • the sealing cutting edge In order to reliably prevent the sealing cutting edge or the correspondingly pre-shaped sealing strip from snapping back when the coke oven door is removed, it is advantageous to design the sealing cutting edge to be connectable to the pressure ram. In this way, any restoring forces in the preformed sealing strip can be compensated for or rendered harmless, the extension of the plunger being limited.
  • a protective strip is arranged on the side of the sealing strip facing the coke oven. With this arrangement, it is also possible to clean the sealing blade itself with cleaning knives without the layers of the sealing strip being damaged as a result of mechanical action.
  • the invention provides that the protective strip is welded to an attachment of the sealing edge or is designed as an angle iron, which is welded to the sealing edge with the short leg and the free leg of which is pulled up close to the door body is trained.
  • the free leg also serves as a back-up safety device, which restricts the preformed sealing strip from snapping back. It is also possible to form the protective strip, sealing edge and attachment to the layers as a drawn or pressed profile.
  • the invention is particularly characterized in that a coke oven door is provided with a sealing strip and sealing blade, which function reliably even when readjusted by means of a hammer blow or also by means of pressure screws and are not deformed, so that they have a long service life and operation Ensure coke oven doors with virtually no maintenance.
  • sealing strips according to the invention can be used both as simple straight sealing strips and as profile sealing strips, without special strips having to be created for this.
  • Figure 1 shows a cross section through a door body (1) with stone holder (2), which is placed tightly on a door frame (3).
  • a tensioning device (4) ensures that the door body (1) and door frame (3) lying tightly on top of each other from the coke oven (5) gases cannot escape into the atmosphere.
  • the tensioning device (4) is held on the door body (1) by means of a clamping screw (7). With the help of a clamping screw (8), the spring-loaded plunger (9), which is arranged in a spring housing, is pressed onto the sealing blade (11) connected to the front end of the sealing strip (10). This and the entire pretension of the coke oven door ensure that the sealing cutting edge (11) brings the necessary tight closure of the coke oven (5).
  • the tension or pretension of the coke oven door is achieved via the pressure spring (12), which presses the door body (1) via the tensioning lever (13) against the tension bracket connected to the door frame (3).
  • the force of the pressure spring (12) can be adjusted via the tension spring adjustment (16). Leakage gases are prevented from escaping through the joints between the door frame (3) and the coke oven (5) via the seals (17).
  • the clamping device (4) shown is one which consists of a wedge (19) which can be adjusted by means of a hammer blow and a wedge counterpart (2).
  • the wedge (19) is advanced by hammering, the wedge counterpart (20) slides into a compensating position by the spring washer (21), so that the wedge (19) and thus the sealing strip (10) is secured against restoring forces.
  • the wedge (19) or the wedge counterpart (20) are attached to the door body (1) via the clamping screw (7).
  • the configuration of the sealing strip (10) shown in FIG. 1 is a preformed profile sealing fleece which has the sealing cutting edge (11) at right angles to it. This sealing cutting edge (11) is loaded via the pressure tappet (9), which is part of the wedge (19) and is held together with the latter via the clamping screw (7) on the door body (1).
  • FIG 2 shows the embodiment of the sealing strip (10) shown in Figure 1 in individual representation, wherein it is made clear that the bent layers (25), (26) and (27) with the partial area (29) on the door body (1) over the Clamping device (4) are pressed and are connected or welded at the end to the right-angled sealing blade (11).
  • a protective strip (34) is used according to FIG. 3, which is welded to the sealing cutting edge with its short leg (35) and ends with the free leg (36) close to the door body (1) .
  • the sealing cutting edge (11) is loaded via the pressure tappet (9) and is pressed onto the door frame (3).
  • the sealing cutting edge (11) can be connected to the pressure tappet in such a way that the sealing strip (10) snaps back when the door body (1) is removed from the coke oven (5) when the individual layers (25), (26) and ( 27) is safely prevented.
  • the embodiment shown in Figure 4 facilitates the manufacture and assembly of the sealing strip (10) and sealing blade (11).
  • the sealing blade (11) is pulled or pressed as one piece with the shoulders (32) and (33) so that the attachment or welding of the sealing strip (10) or the group of layers (25), (26) and (27) and the protective strip (34) is possible particularly cheaply.
  • the protective strip (34) can also be pressed onto the sealing cutting edge (11) at the same time as an extension of the extension (33).

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Coke Industry (AREA)
EP83106986A 1982-07-24 1983-07-16 Koksofentür mit einer Lamellendichtleiste Expired EP0100040B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823227733 DE3227733A1 (de) 1982-07-24 1982-07-24 Koksofentuer mit einer lamellendichtleiste
DE3227733 1982-07-24

Publications (3)

Publication Number Publication Date
EP0100040A2 EP0100040A2 (de) 1984-02-08
EP0100040A3 EP0100040A3 (en) 1985-04-24
EP0100040B1 true EP0100040B1 (de) 1988-05-25

Family

ID=6169261

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83106986A Expired EP0100040B1 (de) 1982-07-24 1983-07-16 Koksofentür mit einer Lamellendichtleiste

Country Status (5)

Country Link
US (1) US4486271A (enrdf_load_stackoverflow)
EP (1) EP0100040B1 (enrdf_load_stackoverflow)
JP (2) JPS5978287A (enrdf_load_stackoverflow)
DE (1) DE3227733A1 (enrdf_load_stackoverflow)
IN (1) IN159556B (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5720855A (en) * 1996-05-14 1998-02-24 Saturn Machine & Welding Co. Inc. Coke oven door
DE10161659C1 (de) * 2001-12-14 2003-05-15 Montan Tech Gmbh Koksofentür mit Membrane
DE10331658B3 (de) * 2003-01-31 2004-05-06 Deutsche Montan Technologie Gmbh Abdichtungen für Koksofentüren sowie deren Verwendung
US9193914B2 (en) * 2013-01-24 2015-11-24 Trident Fluid Power, Llc Coke oven assemblies, doors therefor, and methods
CN113958965B (zh) * 2021-10-21 2024-10-29 华能洋浦热电有限公司 一种烟气密封人孔门

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1066537B (de) * 1959-10-08 Cannes Alpes-Maritimes Pierre Eugene Henri Forsans (Frankreich) Dichtung für Koksofenturen mit einem gegen eine Dichtfläche der Ofenwand drückenden federnd am Türrahmen befestigten Uförmigen Dichtungsprofil und mittels Sperrmedium erzeugter Sperrzone
DE578940C (de) * 1934-03-17 Otto & Co Gmbh Dr C Koksofentuer
GB422182A (en) * 1933-04-03 1935-01-07 Pierre Eugene Henri Forsans Improvements in or relating to coke oven doors without luting
DE738975C (de) * 1936-01-13 1943-09-07 Pierre Eugene Henri Forsans Koksofentuer
DE940343C (de) * 1943-03-19 1956-03-15 Still Fa Carl Vorrichtung an Tueren mit metallischer Selbstdichtung fuer liegende Koksoefen
DE905605C (de) * 1944-11-03 1954-03-04 Still Fa Carl Koksofentuer mit metallischer Selbstdichtung
US2812292A (en) * 1952-12-13 1957-11-05 Koppers Co Inc Coke oven door with sealing diaphragm
DE1177599B (de) * 1959-11-06 1964-09-10 Josef Limberg Koksofentuer mit Abdichtungsrahmen
DE2229953B1 (de) * 1972-06-20 1973-07-05 Dr C Otto & Co GmbH, 4630 Bochum Koksofentuer mit umlaufender dichtungsschneide
DE2309032B2 (de) * 1973-02-23 1975-01-16 Dr. C. Otto & Co Gmbh, 4630 Bochum Koksofentür
US4028193A (en) * 1976-04-19 1977-06-07 Koritsu Kikaikogyo Co., Ltd. Coke oven door
US4115203A (en) * 1977-01-06 1978-09-19 Wilputte Corporation Seal for coke oven doors
US4186055A (en) * 1978-06-26 1980-01-29 Saturn Machine & Welding Co., Inc. Coke oven door
DE2845045C2 (de) * 1978-10-16 1981-09-24 Fa. Carl Still Gmbh & Co Kg, 4350 Recklinghausen Verfahren und Vorrichtung zur Abdichtung von Türen an Horizontalkammeröfen
US4217177A (en) * 1978-12-05 1980-08-12 Jones & Laughlin Steel Corporation Vented coke oven door apparatus
NL8005548A (nl) * 1980-10-08 1982-05-03 Estel Hoogovens Bv Afdichting voor een deur van een kooksovenkamer.

Also Published As

Publication number Publication date
EP0100040A3 (en) 1985-04-24
IN159556B (enrdf_load_stackoverflow) 1987-05-23
US4486271A (en) 1984-12-04
DE3227733C2 (enrdf_load_stackoverflow) 1988-09-08
JPS62114030U (enrdf_load_stackoverflow) 1987-07-20
DE3227733A1 (de) 1984-01-26
EP0100040A2 (de) 1984-02-08
JPH0226915Y2 (enrdf_load_stackoverflow) 1990-07-20
JPS5978287A (ja) 1984-05-07

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