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
  • C10B25/06—Doors; Door frames for ovens with horizontal chambers

Definitions

• the invention relates to a reactor chamber door for large-scale coking reactors with a double sealing system.
• a furnace chamber closure for a horizontal chamber coking furnace which has a double sealing system.
• the two seals attached to the rigid door body, together with the metallic door body walls, the door frame and the wall protection plates, and other metal wall frames adjoining the wall protection plates in a gastight manner form the so-called antechamber.
• This closure is a very complicated coke oven door with a rigid cast door body and heavy stone plugs firmly connected to it. Compensation of temperature-related deformations of the chamber frame is only possible to a limited extent in the known door construction and the associated sealing systems.
• the object of the invention is to propose a reactor chamber door which is also provided for large-capacity coking reactors with an extremely large chamber volume and in which the problems listed do not occur.
• the reactor chamber door consist of an outer and inner door, which are releasably connected and, if necessary, can be handled separately and each have their own all-round door sealing system which can be pressed resiliently against the chamber frame.
• the outer and inner doors are loosely connected to one another, so that one of the two doors can be replaced in a simple manner for the purpose of maintenance and repair.
• the outer and inner door each have their own door sealing system with their own resilient pressure against the chamber frame.
• the outer and inner doors can be connected to one another via interlocking supporting claws and supporting beams in such a way that supporting claws arranged on the inside of the outer door engage under supporting beams arranged on the outside of the inner door.
• This construction is comparable to the door lifting devices in conventional coke oven doors. It has the advantage that the outer and inner doors can be inserted or removed together in the door openings of the reactor chamber.
• the inner door is not attached to the chamber frame suspended and the pressure forces acting on the door stopper from the contents of the reactor chamber are transmitted to the support frame of the outer door via stopper holders, door contact surfaces between the inner and outer door, possibly spacers and / or set screws.
• the inner door consists of a hot membrane covering the entire door opening, which can be pressed resiliently from the outside against the chamber frame. It is a metal-to-metal seal located in the hot area.
• leaf springs which are adjustably attached to the support structure and which press the hot membrane against the chamber frame from the outside are used on the support structure.
• the door sealing system on the outer door consists of a membrane covering the entire door opening with a circumferential seal which can be pressed resiliently against the chamber frame, preferably a soft seal designed as a full profile or as a hose. It has been shown that in the double sealing system according to the invention, these outer soft seals are not contaminated with tar approaches and also remain sufficiently elastic.
• Insulation can be arranged on the inside of the membrane of the outer door to prevent heat loss.
• spacers are expediently arranged to transmit the forces from the contents of the reactor chamber to the set screws attached to the support frame.
• the seals on the outer door can, according to the invention, similarly to those on the inner door, be pressed against the chamber frame, individually or in groups, by means of leaf springs which are adjustably fixed to the supporting frame of the outer door, preferably in the longitudinal direction of the reactor chamber. To compensate for deformations between the chamber frame and the reactor chamber door, it is further provided that the distance between the support structure and the membrane on the outer door can be changed with the aid of set screws.
• the intermediate space between the outer membrane or the insulation attached to the membrane and the inner hot membrane and the chamber frame can, according to the invention, be acted upon with a sealing gas, in particular inert gas, and thus kept under excess pressure to avoid raw gas leaks.
• a sealing gas in particular inert gas
• the door stopper with a trapezoidal frame, the side surfaces of which form cones, the conically shaped chamber walls in the entrance area of the reactor chamber can be assigned.
• the reactor chamber consists of a support frame 1 extending over the entire door height sic with two or more locks 3 designed as a spindle or spring, which engage in the locking hooks 30 after the door has been inserted into the door opening of the reactor chamber 29.
• the support frame 1 consists of two vertical U-profiles.
• Door guides 32 are fastened to the outside of these U-profiles and slide along the inside of the locking hooks 30 when the door is inserted.
• the so-called outer door also consists of the outer membrane 8, whose distance from the support frame 1 can be changed with the set screws 2 even during ongoing operation.
• Exchangeable soft seals 9, 10 are arranged on the membrane in the outer circumference in a U-shaped holder and are pressed against the sealing surface on the outer chamber frame 24 by means of the leaf springs 4, 4a.
• the circumferential angular lateral leaf springs 4 are fastened to the supporting frame 1 by means of the screws 6. To balance 'from unevenness of the distance between the end of the leaf springs 4 and the outer membrane 8 with the help of the screw is changed. 5
• the leaf springs 4a are Z-shaped and, with the aid of clamping plates 36 and adjusting screws 37 known per se, are adjustably attached to the support frame 1 in the longitudinal direction of the chamber.
• the circumferential soft seal is shown as a full profile 9 and in Figure 2 as a hose 10.
• the outer door also includes the insulation 11 arranged on the inside of the outer membrane 8 with spacers arranged therein and the door contact surfaces 12 assigned to the inner door.
• the carrying claws 13 are further connected to the supporting frame 1 and are used to transport the inner door under its supporting beam 14 grab.
• the inner door consists of the two vertical U-bars 15 with the horizontal support beams 14, the peripheral leaf springs 16 attached to the U-bars 15, the free ends of which press the edges of the home membranes 17 against the inner chamber frame 25.
• the plug holders 18, which are designed as hooks and which engage in hanging pockets 22 of the door plug 19, are firmly screwed to the U-bars 15 and the hot membrane 17.
• the door stopper consists of an outer U-shaped frame 20 made of refractory material or heat-resistant steel and the inner insulation 21. To seal the door stopper 19 against the vertical chamber walls and possibly against the chamber floor and the chamber ceiling, there is a circumferential outside in the frame 20 replaceable sealing cord 31 is provided.
• a sealing gas in particular inert gas, can be fed into the intermediate space 23 between the inner membrane 17 and the outer membrane 8 or the insulation 21, which is optionally kept under excess pressure.
• the two chamber frames 24 and 25 form a unit with the wall protection plate 26 and together with the anchor stands 27 the anchoring for the reactor heating wall 28.
• the two chamber frames are designed as thin rectangular or angular profiles and are optionally with the interposition of insulation from the outside in front of the wall protection plate 26. If necessary, they can be replaced individually.
• the soft seals 9, 10 come to rest on the outer chamber frame 24 and the outer edge of the hot membrane 10 on the inner chamber frame 25.
• the temperature at the inner seal between the chamber frame 25 and the membrane 17 will be so high that tar condensate formation and thus cleaning at the sealing point will be avoided.
• the pressure exerted by the furnace batch in the reactor chamber 29, in particular in the case of hot coal charging, on the door stopper 19 is via the stopper parts 20, 21, the hanging pockets 22, the stopper holder 18, the U-iron 15, the door contact surfaces 12, the spacer 7 and the Transfer the set screws 2 directly into the support frame 1 and via the locks 3 into the locking hooks 30.
• the guide of the reactor chamber door is not carried out via door guides 32, but rather via guide elements 34, each of which has a cylindrical or, if appropriate, also a conical bore 35 and into which guide pins 33 are inserted when the reactor chamber door is retracted Wall protection plates 26 are attached.
• the reactor chamber 29 has a conical chamber wall 38 in the entrance area. Accordingly, the door stopper 19 in this example is provided with a trapezoidal frame 40, the side walls 39 of which form cones. With this configuration, insertion and removal of the reactor chamber door are facilitated.

Landscapes

• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Materials Engineering (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Organic Chemistry (AREA)
• Apparatus For Disinfection Or Sterilisation (AREA)
• Furnace Housings, Linings, Walls, And Ceilings (AREA)
• Physical Or Chemical Processes And Apparatus (AREA)
• Radar Systems Or Details Thereof (AREA)
• Accommodation For Nursing Or Treatment Tables (AREA)
• Power-Operated Mechanisms For Wings (AREA)
• Coke Industry (AREA)

Priority Applications (7)

Applications Claiming Priority (4)

Publications (1)

Family

ID=25892377

Family Applications (1)

Country Status (11)

Families Citing this family (9)

Citations (4)

Family Cites Families (11)

• 1991
  • 1991-02-06 DE DE4103504A patent/DE4103504A1/de active Granted
  • 1991-04-18 WO PCT/EP1991/000739 patent/WO1991016404A1/de not_active Ceased
  • 1991-04-18 KR KR1019910701820A patent/KR920702716A/ko not_active Ceased
  • 1991-04-18 JP JP3507699A patent/JPH0776338B2/ja not_active Expired - Lifetime
  • 1991-04-18 US US07/956,774 patent/US5395485A/en not_active Expired - Fee Related
  • 1991-04-18 EP EP91907844A patent/EP0525030B1/de not_active Expired - Lifetime
  • 1991-04-18 BR BR919106364A patent/BR9106364A/pt not_active Application Discontinuation
  • 1991-04-18 AT AT91907844T patent/ATE121119T1/de not_active IP Right Cessation
  • 1991-04-18 ES ES91907844T patent/ES2071307T3/es not_active Expired - Lifetime
  • 1991-04-18 CA CA002081016A patent/CA2081016A1/en not_active Abandoned
  • 1991-04-18 DE DE59105191T patent/DE59105191D1/de not_active Expired - Fee Related
  • 1991-04-20 CN CN91102513A patent/CN1028110C/zh not_active Expired - Fee Related

Patent Citations (4)

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