US2476305A - Method of repairing coke-oven walls - Google Patents

Method of repairing coke-oven walls Download PDF

Info

Publication number
US2476305A
US2476305A US621283A US62128345A US2476305A US 2476305 A US2476305 A US 2476305A US 621283 A US621283 A US 621283A US 62128345 A US62128345 A US 62128345A US 2476305 A US2476305 A US 2476305A
Authority
US
United States
Prior art keywords
shapes
oven
wall
silica
walls
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 - Lifetime
Application number
US621283A
Other languages
English (en)
Inventor
Singleton H Kimmel
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.)
Beazer East Inc
Original Assignee
Koppers Co Inc
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 Koppers Co Inc filed Critical Koppers Co Inc
Priority to US621283A priority Critical patent/US2476305A/en
Priority to GB87/46A priority patent/GB605631A/en
Priority to FR930692D priority patent/FR930692A/fr
Application granted granted Critical
Publication of US2476305A publication Critical patent/US2476305A/en
Priority to DEK6737A priority patent/DE854340C/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • C10B29/00—Other details of coke ovens
    • C10B29/06—Preventing or repairing leakages of the brickwork

Definitions

  • This invention relates to the repairing of coke ovens. More particularly the invention relates to an expansion joint used in the repairing of byproduct coke ovens.
  • the coke oven structure including the ovens and regenerators used therewith are preferably built of silica refractory brick or shapes. These silica refractories have a peculiar expansion characteristic in that they expand rapidly as they are heated from atmospheric temperature up to a temperature of approximately 1500. peratures above 1500 F. there is practically no further expansion of the silica shapes as the temperature is increased up to 3000 F. This expansion characteristic is quite advantageous in coke oven structures because in the normal operation of the coke oven, the oven and regenerator structures are constantly held at a temperature above 1500 F. so that there is a comparatively small amount of contraction and expansion of the structures when they are in a heated condition.
  • the coking ovens themselves are open at each end. These openings are closed by doors when coal is being coked within the ovens. These doors are removed when the cokeis to be pushed out of the ovens and at this time the refractory shapes close to the ends of the ovens often become cooled below 1500 F. so that these sections of the ovens are subjected to expansion and contraction which often causes the refractory shapes to deteriorate and disintegrate.
  • the repair of disintegrated refractory walls preferably is carried out while the coke oven structure is heated because it is not practicable to cool down a coke oven battery for repairs.
  • the refractory shapes are heated from atmospheric temperature up to approximately 1500 0. these shapes expand to substantially larger dimensions than when they are cold. It is necessary, therefore, when repairing heated walls to join the smaller cold shapes with the heated shapes so that the oven wall will assume a uniform condition when all-of the wall becomes heated to a uniform temperature.
  • the primary object of the present invention is to provide an expansion joint construction by which a hot oven wall may be repaired to restore it to normal operating condition.
  • Another object of the invention is to provide a method of repairing hot coke oven walls which are built out of silica refractory shapes.
  • a further object of the invention is to provide a method of repairing a silica wall structure by which an expansion joint is provided to take care of changing heat conditions prevalent at the ends of the coke ovens.
  • the invention consists in the improved method of repairing coke ovens hereinafter described and particularly defined in the appended claims.
  • Figure 1 is a vertical sectional view of a coke oven structure showing the application of the present method of repairing coke oven walls to the walls of the coke oven and heating flues;
  • Figure 2 is a vertical sectional view of a coke oven wall taken on the line 11-11 of Figure l:
  • Figure 3 is a perspective detail view showing refractory shapes used for wall construction of the coke oven and heating flues.
  • the method of repairing coke oven walls of the present invention is illustrated in the drawings as applied to the repairing of the walls IU of a coke oven l2. Between each of the ovens F2 are positioned heating fiues l4 so that the walls I0 which form the coke oven also form the heating flues.
  • the walls I 0 are usually built of refractory silica shapes which are special shapes such as illustrated in Figure 3, with grooves I6 and tongues [8 by which the shapes may be interlocked in the wall.
  • composed of crushed fused silica brick, 25% silica clay and 25% raw ganister or quartzite is used for cementing the bricks together in the 'wall. This cement is highly siliceous and has substantially the same expansion characteristics as the silica shapes.
  • the tongue-and-groove construction prevents the leakage of gas from the coke oven into the heating fiues and likewise prevents the leakage of combustion gases from the heating flues into the coke oven.
  • the coke ovens When the coke oven structure is originally built, the coke ovens are closed with doors at each end and the structure is slowly heated to bring the temperature of the oven battery up to the desired operating temperature. During the heating operation the entire refractory structure undergoes expansion.
  • the steel work and buckstays of the oven battery are built to make provision for this expansion and the whole structure is constructed to provide tight ovens and heating flues when the temperature is up to the normal operating condition.
  • the temperatures which are maintained in the heating flues l4 may vary from 2000 F. to 2750 F.
  • oven walls normally are maintained above the temperature of 1500 F.
  • the cold air from the exterior penetrates a short distance into the oven so that the walls adjacent the doors become cooled below 1500 F. and this causes considerable expansion and contraction that tends to disintegrate the refractory walls.
  • Figure 2 shows a repair section and a section of the wall as originally built.
  • the shapes are laid in courses 22 using the normal coke oven cement of the type described above between most of the courses, but as hereinafter explained, a difierent type of cement is employed between selected courses.
  • a difierent type of cement is employed between selected courses.
  • the cold shapes incorporated in the repaired portion of a wall are substantially smaller in dimensions than the heated shapes in the original wall. Therefore in laying up the courses of new shapes, as illustrated in Figure 2, the courses of shapes will not align with the courses of shapes in the hot wall. Furthermore, because of the expansion of the silica shapes on heating, if the repaired section of the wall were built up solid with cold silica shapes bound together with silica cement of the type normally employed, the repaired portion of the wall would expand so much on heating that it would lift the roof of the oven chamber and thus seriously damage the battery. To provide for the differences in dimensions.
  • the compressible cement 24 is preferably made of vermiculite or expanded mica which is mixed with silica clay in the proportion of 60 to 80% vermiculite to 40 to 20% clay.
  • the invention is not limited to these specific proportions and the compressible cement may include a larger proportion of expanded clay, and, for example, may be composed of 70% clay and expanded mica.
  • This compressible cement layer preferably has a thickness such that when the cold shapes are heated to the temperature oi. the hot shapes, or preferably heated to a temperature of approximately 1500 F. the courses of the cold shapes will align with the courses of the hot shapes, and so that the vertical height of the courses of silica shapes and intervening layers of cement in the repaired section of the wall will not be materially greater after this portion of the wall is heated than it is when constructed.
  • the cement described above has the particular feature of providing a gas-tight cemented joint which is formed at the time that the vermiculite has been compressed into the clay and hardened by the expansion of the shapes under heat.
  • This joint is an effective gas-tight joint and still is capable of expanding under heat changing conditions.
  • a layer of the compressible cement may be required between groups I of three of four courses of shapes. It has been found in practice, however, that a compressible joint for every five courses gives a very satisfactory wall construction. By having the compressible joint in the section adjacent the door opening, the wall is given more freedom for ever occurring expansion and contraction without putting strain on the refractory shapes which tends to disintegrate them.
  • the bulkheads are withdrawn.
  • the oven doors are inserted in the end of the oven and then the walls are slowly brought up to operating temperature to expand the cold brick to operating condition. This heating operation is carried on slowly in order to avoid undue strain to the oven structure. After the oven wall temperature has become quite uniform throughout, the repaired oven may be put into operation.
  • the cement employed between most of said courses being a siliceous cement of substantially the same type as is employed in the remainder of the wall, the cement employed between the remainder of said courses being a compressible cement of refractory material composed of from 60% to 80% of expanded mica and 40% to 20% of siliceous clay and being of such thickness that on heating of the reconstructed portionof the wall the silica shapes therein may expand without materially increasing the vertical dimension of said reconstructed wall portion.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
US621283A 1945-10-09 1945-10-09 Method of repairing coke-oven walls Expired - Lifetime US2476305A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US621283A US2476305A (en) 1945-10-09 1945-10-09 Method of repairing coke-oven walls
GB87/46A GB605631A (en) 1945-10-09 1946-01-01 Method of repairing coke ovens
FR930692D FR930692A (fr) 1945-10-09 1946-07-13 Procédé pour réparer les fours à coke
DEK6737A DE854340C (de) 1945-10-09 1950-09-28 Verfahren zum Instandsetzen von Koksofenwaenden

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US930692XA 1945-10-09 1945-10-09
US605631XA 1945-10-09 1945-10-09
US854340XA 1945-10-09 1945-10-09
US621283A US2476305A (en) 1945-10-09 1945-10-09 Method of repairing coke-oven walls

Publications (1)

Publication Number Publication Date
US2476305A true US2476305A (en) 1949-07-19

Family

ID=27490131

Family Applications (1)

Application Number Title Priority Date Filing Date
US621283A Expired - Lifetime US2476305A (en) 1945-10-09 1945-10-09 Method of repairing coke-oven walls

Country Status (2)

Country Link
US (1) US2476305A (de)
DE (1) DE854340C (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2921171A1 (de) * 1979-05-25 1980-12-11 Otto & Co Gmbh Dr C Verfahren zur erneuerung des mauerwerks von verkokungsoefen
US4364798A (en) * 1980-12-30 1982-12-21 Bmi, Inc. Rebuilt coke oven heating chamber and method of making the same
US4445977A (en) * 1983-02-28 1984-05-01 Furnco Construction Corporation Coke oven having an offset expansion joint and method of installation thereof
US4754591A (en) * 1978-06-02 1988-07-05 Hoogovens Ijmuiden B.V. Construction and repair of refractory structures, in particular heated structures
US4793595A (en) * 1986-10-29 1988-12-27 Bmi, Inc. Method and apparatus for relining blast furnace
US4880211A (en) * 1986-10-29 1989-11-14 Head James D Method and apparatus for relining a refractory lined vessel
EP0527318A2 (de) 1991-08-01 1993-02-17 Tonawanda Coke Corporation Koksovenreparatur
US5966886A (en) * 1994-02-25 1999-10-19 Fib-Services Method for partially building and/or repairing at high temperatures industrial facilities including a structure made of refractory materials, and prefabricated element therefor
US20080209849A1 (en) * 2007-03-02 2008-09-04 Saturn Machine & Welding Co., Inc. Method and Apparatus for Replacing Coke Oven Wall
US20100287871A1 (en) * 2009-05-12 2010-11-18 Vanocur Refractories, L.L.C. Corbel repairs of coke ovens
US20110083315A1 (en) * 2007-03-02 2011-04-14 Saturn Machine & Welding Co., Inc. Method and apparatus for replacing coke oven wall

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2148054A (en) * 1936-03-11 1939-02-21 Oesterr Amerikan Magnesit Mortarless brickwork

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2148054A (en) * 1936-03-11 1939-02-21 Oesterr Amerikan Magnesit Mortarless brickwork

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4754591A (en) * 1978-06-02 1988-07-05 Hoogovens Ijmuiden B.V. Construction and repair of refractory structures, in particular heated structures
DE2921171A1 (de) * 1979-05-25 1980-12-11 Otto & Co Gmbh Dr C Verfahren zur erneuerung des mauerwerks von verkokungsoefen
US4364798A (en) * 1980-12-30 1982-12-21 Bmi, Inc. Rebuilt coke oven heating chamber and method of making the same
US4445977A (en) * 1983-02-28 1984-05-01 Furnco Construction Corporation Coke oven having an offset expansion joint and method of installation thereof
US4793595A (en) * 1986-10-29 1988-12-27 Bmi, Inc. Method and apparatus for relining blast furnace
US4880211A (en) * 1986-10-29 1989-11-14 Head James D Method and apparatus for relining a refractory lined vessel
US5423152A (en) * 1990-02-09 1995-06-13 Tonawanda Coke Corporation Large size cast monolithic refractory repair modules and interfitting ceiling repair modules suitable for use in a coke over repair
US5227106A (en) * 1990-02-09 1993-07-13 Tonawanda Coke Corporation Process for making large size cast monolithic refractory repair modules suitable for use in a coke oven repair
EP0527318A2 (de) 1991-08-01 1993-02-17 Tonawanda Coke Corporation Koksovenreparatur
US5966886A (en) * 1994-02-25 1999-10-19 Fib-Services Method for partially building and/or repairing at high temperatures industrial facilities including a structure made of refractory materials, and prefabricated element therefor
US20080209849A1 (en) * 2007-03-02 2008-09-04 Saturn Machine & Welding Co., Inc. Method and Apparatus for Replacing Coke Oven Wall
US20080210539A1 (en) * 2007-03-02 2008-09-04 Saturn Machine & Welding Co., Inc. Method Of And Apparatus For Replacing Coke Oven Wall
US20110083315A1 (en) * 2007-03-02 2011-04-14 Saturn Machine & Welding Co., Inc. Method and apparatus for replacing coke oven wall
US20110083313A1 (en) * 2007-03-02 2011-04-14 Saturn Machine & Welding Co., Inc. Method and apparatus for replacing coke oven wall
US20110083314A1 (en) * 2007-03-02 2011-04-14 Saturn Machine & Welding Co., Inc. Method and apparatus for replacing coke oven wall
US20100287871A1 (en) * 2009-05-12 2010-11-18 Vanocur Refractories, L.L.C. Corbel repairs of coke ovens
US8266853B2 (en) * 2009-05-12 2012-09-18 Vanocur Refractories Llc Corbel repairs of coke ovens
US8640635B2 (en) * 2009-05-12 2014-02-04 Vanocur Refractories, L.L.C. Corbel repairs of coke ovens

Also Published As

Publication number Publication date
DE854340C (de) 1952-11-04

Similar Documents

Publication Publication Date Title
US2476305A (en) Method of repairing coke-oven walls
US4445977A (en) Coke oven having an offset expansion joint and method of installation thereof
US5228955A (en) High strength coke oven wall having gas flues therein
GB2050586A (en) Method of renewing the brickwork of coke ovens
US3259551A (en) Regenerative coke oven batteries
JP6573837B2 (ja) コークス炉の燃焼室の補修方法
US2179635A (en) Coke-oven operating appliance
US3102846A (en) Coking retort oven with liner walls of two thicknesses
US2853440A (en) Floor for broad coke ovens and heating flue-structure therefor and method of operating the same
US2147681A (en) Horizontal chamber coke oven
CN111778043A (zh) 一种捣固焦炉炉墙熔洞的修补方法
CN110330986A (zh) 一种更换焦炉碳化室炉底砖的方法
US2393658A (en) Coke-oven wall construction
US2665242A (en) Coke oven heating walls
US3214353A (en) Jamb structure for coke oven batteries
US682441A (en) Coke-oven.
US2839453A (en) Coking retort oven with graduated liner wall
US1657704A (en) Recuperator
JP2006124561A (ja) コークス炉用珪石質煉瓦
US3247079A (en) Controlled bracing of coke oven battery roofs
US2978386A (en) Method of preserving refractory materials
US1928595A (en) Coke oven battery
CN113528161B (zh) 焦炉揭顶翻修无窜漏的控制方法
JP6387715B2 (ja) コークス炉の操業方法
CN212512534U (zh) 一种石油焦煅烧炉耐热烟道