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 coke oven door with hollow plugs made of ceramic material, in which mats are provided as a carrier element on both sides with layers of refractory material by the concrete spraying method.
• Such a coke oven door is known from DE-OS 37 15 711, in which an effective insulation of the door body is ensured.
• the mechanical stability of this ceramic hollow body is also significantly improved by mats, preferably made of metal mesh or refractory fibers, onto which refractory material is sprayed on both sides.
• the shape of such hollow bodies can be designed freely, with special emphasis being placed on a sufficiently large relaxation channel for reducing the gas pressure on the door sealing elements.
• the shaping is also preferably carried out so that there are no sharp edges and corners that could damage the runner wall of the coke oven when inserting or removing the coke oven doors, according to the prior art, coke oven doors with plugs are used Inserted into position by lateral guide elements.
• the invention is based on the object, in order to avoid the aforementioned disadvantages, of finding a hollow plug which, in the operating position, bears practically without a gap on the chamber walls of the coke oven.
• a modification of the coke oven door with hollow plug according to claim 1 and the dependent claims 2 to 13 referring to it is listed in claim 14.
• a coke oven door according to the modified genus is from the DE-GM 89 10 715 known, which in turn is a further development of the generic coke oven door according to DE-OS 37 15 711 with the same disadvantages as this.
• the special closure element of the hollow stop reliably prevents leakage into the cavity serving as a gas channel when the coking coal is introduced into the coke oven chamber. This means that no emissions can occur when the coke oven doors are pulled off, which would otherwise be caused by insufficiently coked trickle coal.
• the gap to be provided between the door plug and the coke oven wall which is required in the usual plug designs in order to allow sufficient play when inserting and removing the door, is eliminated and thus a possible source of damage to the coke oven wall and the door plug when inserting or removing it. Due to the pivotability of the closure element in the open position, there is sufficient play in any case when inserting or removing the coke oven door, and nevertheless - in the closed position - a tight contact with the coke oven walls is ensured. Any excess or undersize of the width of the coke oven, which can occur after a long period of operation, can no longer have a negative effect.
• the invention is described below with reference to the drawing.
• FIG. 1 in cross section a coke oven door with a
• FIG. 1 shows the subject of Figure 1 in closed
• FIG 3 shows the subject of Figure 1 with Verstellein
• Figure 4 shows the subject of Figure 3 in closed
• FIG. 5 shows a longitudinal section X-X through the objects of FIGS. 2 and 4.
• FIG. 1 shows a coke oven chamber 10 with coke oven walls 11, which is closed by a coke oven door, the door body 5 of which is arranged in front of the coke oven chamber 10.
• thermal insulation 27 is arranged on the door body 5, to which a hollow plug 1 connects.
• This consists of a side element 2 and a side element 3, to which a closure element 4 is assigned, which is designed to be pivotable.
• the side elements 2, 3 have one angular cross section and consist of webs 6, which protrude into the coke oven chamber 10, and of foot parts 7 with openings 8 for receiving fastening elements 9, which connect the hollow plug 1 to the coke oven door body 5.
• Gas channels 32 are kept clear between the hollow plug 1 and the coke oven walls 11.
• the bearing pin 19 corresponds to an elongated hole 16 which is arranged in a holding plate 14 which is anchored in the closure element 4 in the region of a recess 12 which is U-shaped in cross section.
• the bearing pin 19 In the open position of the closure element 4, the bearing pin 19 is located at the door-side end of the elongated hole 16.
• the bearing pin 19, as shown in FIG. 2 is arranged at the chamber-side end of the elongated hole 16.
• the detachable connection of the holding plate 14 to the support structure 20, which is brought about by the bolt 19 and the elongated hole 16, is shown in detail in FIG. 5, in which the closure element 4 is shown in the closed position.
• the pivot mechanism for the closure element 4 can be seen from Figures 3 and 4.
• a further holding plate 15 is anchored in the closure element 4.
• the holding plate 15 contains two Bores 17 and 18, which correspond to retaining bolts 21 and 22, respectively, which are fastened to a retaining rod 23 and to a torsion bar 24, respectively.
• the holding rod 23 is provided outside the door body 5 with a spring element 25.
• the spring element 25 gives the holding rod 23 a limited up and down mobility.
• the torsion bar 24 is connected on the outside of the door body 5 to a crank linkage 26 which is guided in holders 31 which are fastened to the door body 5.
• FIG. 3 shows details of the connection of the torsion bar 24 to the crank linkage 26 and the closure element 4 via the holding plate 15, specifically in the closed position of the closure element 4.
• the individual parts of the hollow plug 1, namely the side elements 2, 3 and the closure element 4 are made of mats 28, which consist of a refractory metal mesh or other refractory material consisting of an outer refractory concrete layer 29 and an inner one Refractory concrete layer 30 are covered. They can either be produced using the concrete spraying process or by inserting the mats in negative molds using the concrete shaking process using vibrating machines.
• the shape of the hollow body 1 can be compared can be designed freely so that in particular no sharp edges and corners arise which could damage the rotor stone walls 11 of the coke oven chamber 10 when the coke oven door is inserted or removed.
• the closure element 4 is designed with an oval cross section, which takes into account the previously mentioned requirement.
• the closure element 4 the width A of which can exceed the width B of the coke oven chamber 10 by a certain excess C of approximately 10 mm, can still achieve a tight connection to the coke oven walls 11 even when the Width B of the coke oven chamber 10 has widened due to wear.
• the slight inclination of the closure element 4 due to the oversize C is not disadvantageous for the cooking of the adjacent coking coal, since the central end point of the hollow body 1 is not changed due to the oval shape of the closure element 4.

Landscapes

• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Materials Engineering (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Organic Chemistry (AREA)
• Coke Industry (AREA)
• Furnace Housings, Linings, Walls, And Ceilings (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (1)

Family

ID=6412322

Family Applications (1)

Country Status (6)

Citations (3)

• 1990
  • 1990-08-14 DE DE4025893A patent/DE4025893C1/de not_active Expired - Lifetime
• 1991
  • 1991-08-09 CA CA002077749A patent/CA2077749A1/en not_active Abandoned
  • 1991-08-09 ES ES91914468T patent/ES2051128T3/es not_active Expired - Lifetime
  • 1991-08-09 WO PCT/EP1991/001517 patent/WO1992003518A1/de active IP Right Grant
  • 1991-08-09 EP EP91914468A patent/EP0543869B1/de not_active Expired - Lifetime
  • 1991-08-09 DE DE91914468T patent/DE59101292D1/de not_active Expired - Fee Related
  • 1991-08-13 TW TW080106394A patent/TW198066B/zh active

Patent Citations (3)

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