US3900369A - Coal charging cover and seal for the coal charging hole of a coke oven - Google Patents

Coal charging cover and seal for the coal charging hole of a coke oven Download PDF

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Publication number
US3900369A
US3900369A US423147A US42314773A US3900369A US 3900369 A US3900369 A US 3900369A US 423147 A US423147 A US 423147A US 42314773 A US42314773 A US 42314773A US 3900369 A US3900369 A US 3900369A
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US
United States
Prior art keywords
coal charging
charging seat
coke oven
refractory
construction
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
US423147A
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English (en)
Inventor
Sadanao Irie
Kenichi Tomomoto
Toyohiko Akahori
Kazuhisa Simomura
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.)
Osaka Gas Co Ltd
Original Assignee
Osaka Gas Co Ltd
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
Priority claimed from JP6999273U external-priority patent/JPS5315810Y2/ja
Application filed by Osaka Gas Co Ltd filed Critical Osaka Gas Co Ltd
Application granted granted Critical
Publication of US3900369A publication Critical patent/US3900369A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • C10B25/20—Lids or closures for charging holes
    • C10B25/24—Lids or closures for charging holes for ovens with horizontal chambers

Definitions

  • ABSTRACT Coal charging cover and seat for the coal charging hole of a coke oven are made substantially wholly of refractories, the coal charging cover being composed of a refractory body and an iron plate positioned on the top portion of the refractory body with which to operate the coal charging cover by an electromagnetic device and the coal charging seat being composed of one or more parts with the parts secured with each other.
  • the coal charging cover and seat have excellent properties in durability, resistance to heat, deterioration, and scalability.
  • the present invention relates to coal charging cover and seat for the coal charging hole of a coke oven. More particularly, it relates to a close-fitting covering or cover and seat for the coal charging hole of a coke oven.
  • Conventional coal charging cover and seat for the coal charging hole of a coke oven have a structure as illustrated as an example in FIG. I, which comprise the charging cover made of cast iron or cast steel 1 with insulating castable 8 filled therein or of cast iron alone, and the coal charging seat composed in combination of a cap 2 made of cast iron with a refractory body 16.
  • the reason the conventional coal charging cover is made mainly of cast iron is simply based upon the fact that cast iron is to be easily shaped into a desirable form for that purpose. That cast iron is used for the coal charging cover also constitutes the major reason for the use of the coal charging seat in said combina tion.
  • it has been thought to be less stable and to cause the problem with the sealing of the charging seat if it is made wholly of a refractory material. It is not known that any other material than iron has been practically used for these purposes.
  • Another object of the present invention is to provide a close-fitting charging cover and seat for the coal charging hole of a coke oven possessing desirable properties particularly with respect to durability, sealing, resistance to heat and deterioration.
  • FIG. I is a sectional view of a conventional covering or charging cover and seat for the coal charging hole of a coke oven
  • FIG. 2 is a sectional view showing an example of charging cover and seat of the present invention
  • FIG. 3 is a partial plan view of a preferred embodiment of the charging cover and seat of the present invention'
  • FIGS. 4, 5 and 6 are sectional views of exemplary charging covers of the present invention.
  • FIGS. 7, 9 and 10 are sectional views of exemplary charging seats of the present invention.
  • FIG. 8 is a partial plan view of an exemplary charging seat of the present invention.
  • FIGS. 11 and 12 are plan views of examples of polygonal and round charging seats of the present invention.
  • a charging cover is composed of a refractory body 3 with which an iron plate 6 is joined on the surface of the top portion of the refractory body so as to be capable of being operated by electromagnet for the removal and setting of the cover.
  • a space portion 9 which may be provided with a handle 10, when desired, with which to open or close the charging cover by hand.
  • a plurality of bolts or nuts 11 may be used to fasten the refractory body 3 and the iron plate 6 together.
  • An adhesive resistant enough to high temperatures in the coke oven may be used without bolts and nuts for this purpose.
  • a space portion 12 also may be provided therebetween when desired.
  • an iron plate may be used; for example, an iron plate of the type that covers the shoulder portion of the refractory body as shown in FIG. 4; of the type that has the same shape as the upper portion of the refractory body on which the iron plate is positioned as shown in FIG. 5; and of the type that possesses a smaller shape than that of the refractory body as shown in FIG. 6.
  • the shapes of the iron plate on the top portion of the refractory body of the coal charging cover are not limited to those illustrated above and in the drawings. In the practice of the present invention there may be used any shape thereof which only possesses an area sufficient enough for the coal charging cover to be effectively operated electromagnetically.
  • the coal charging seat of a coke oven according to the present invention is made substantially wholly of refractories.
  • the charging seat made of refractories is provided with a hollow portion 13 in which a fastening hardware 5 may be used to fix the seat to the coke oven tightly.
  • FIG. 9 shows an example of a charging seat made of refractories which is provided with a hollow portion 13 where a fastening hardware 5 may be used and also with a spline I4 to fasten the seat to the coke oven tightly.
  • FIG. 10 shows an embodiment of a seat which is made of refractories and privided with a foot portion 15 with which the coal charging seat is secured to the coke oven.
  • the plane shapes of the coal charging seat of the present invention may be varied widely.
  • FIGS. 11 and 12, respectively, show the coal charging seat of the polygonal and round types.
  • the plane shapes of the charging seat are not limited to those illustrated above and in the accompanying drawings.
  • FIG. 8 it is preferred that the coal charging seat of the present invention be composed of four parts, thereby leading to the ready prevention of the spalling and the easy formation of its shape.
  • the coal charging seat of the present invention is not limited to the illustrated four-part one and may be composed of one or two or more parts.
  • the refractories of the present invention may include any material resistant to the spalling and abrasion such as refractory, refractory material, refractory composition, and the like, e.g., silicon carbide, silicon nitride, clay, high alumina, pure alumina, fused silica, zircon, cordierite, castable refractory, plastic refractory, gunning refractory, refractory brick, and the like.
  • These refractories may be used alone or in combination with one or more others. When the refractories are used in combination, they may be bonded or joined together. Such use of the refractory materials may be preferred in view of the economical utilization of the refractory materials and the cost of their manufacture.
  • the coal charging seat of the present invention may be secured to the coke oven with a fastening hardware or a spline or a foot portion.
  • An adhesive also may be used alone or together with such portion.
  • the coal charging cover to be used in the practice of the present invention may be set to a conventional coal charging seat with a cast iron cap 2 covering over the shoulder portion of the refractory body thereof.
  • the coal charging cover is used with the coal charging seat made of a refractory material according to the present invention as shown in H08. 2, 7, 9, and 10.
  • the charging cover and the seat are able to be set so tightly together that the gas is prevented fully from being leaked from the inside of the coke oven.
  • the sealing of the cover and the seat is made complete because of their identical properties such as heat conductivity, expansion coefficient and the like. It is also practically effective to use the charging cover in the form of a disc because by doing so the rotary force is provided with the charging cover upon the operation of the electromagnetic removal and setting device and thus the sealing of the charging cover is improved.
  • the inner portion of the coal charging cover whose portion is always exposed to high temperatures in the coke oven is made of refractories so that they possess favorable properties in resistance to heat and deterioration.
  • the side portion of the charging cover according to the present invention is also made of refractories, thus producing the property to be strong against the rapid change of temperatures and resulting in a remarkable reduction in the deformation to be caused due to the heat distortion or the oxidation damages as compared with conventional cast iron covers.
  • the iron plate positioned on the top portion of the refractory body can serve to operate the electromagnetic removal and setting device for opening and setting the charging cover effectively so that it functions to get rid of an impact on the charging cover given by dropping it upon removal.
  • the coal charging seat of the present invention is made of refrac tories, it also possesses the favorable properties as mentioned above for the refractory coal charging cover according to the present invention.
  • the use of refractories for these purposes also can help to reduce amounts of tars, carbon, etc., to be attached to the inner portion of the cover and the seat of the coke oven, thus leading to the remarkable prolongation of the life of the coal charging cover and seat as compared with the conventional ones.
  • a coke oven charging-hole closure construction comprising a coke oven cover and a coal charging seat adapted to receive said coke oven cover in a tight relationship, thereby establishing a complete seal between the coke oven cover and the coal charging seat, at leat the contacting surfaces between said coke oven cover and said coal charging seat being made of a refractory body.
  • the refractory body is a refractory material selected from the group consisting of silicon carbide, silicon nitride, clay, high alumina, pure alumina, fused silica, zircon, cordierite, castable refractory, plastic refractory, gunning refractory and refractory brick.
  • coal charging seat is composed of one or more parts secured to each other.
  • a coal charging seat of a coke oven wherein said coal charging seat is made wholly of a refractory body.
  • coal charging seat of claim 17 wherein said coal charging seat is provided with a foot portion which is effective in securing it to a coke oven.
  • the refractory body is a refractory material selected from the group consisting of silicon carbide, silicon nitride, clay, high alumina, pure alumina, fused silica, zircon, cordierite, castable refractory, plastic refractory, gunning refractory and refractory brick.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Coke Industry (AREA)
US423147A 1972-12-09 1973-12-10 Coal charging cover and seal for the coal charging hole of a coke oven Expired - Lifetime US3900369A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP14167272 1972-12-09
JP6999273U JPS5315810Y2 (de) 1973-06-12 1973-06-12

Publications (1)

Publication Number Publication Date
US3900369A true US3900369A (en) 1975-08-19

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Family Applications (1)

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US423147A Expired - Lifetime US3900369A (en) 1972-12-09 1973-12-10 Coal charging cover and seal for the coal charging hole of a coke oven

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US (1) US3900369A (de)
DE (1) DE2361495C3 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4172598A (en) * 1975-07-01 1979-10-30 Goricon Metallurgical Services Limited Sealing methods
US4389284A (en) * 1981-12-28 1983-06-21 Koppers Company, Inc. Charging hole cover seal
US4390397A (en) * 1981-12-28 1983-06-28 Koppers Company, Inc. Heat dissipating charging hole cover
US4475989A (en) * 1981-12-28 1984-10-09 Raymond Kaiser Engineers Inc. Insulating charging hole cover
CN111778042A (zh) * 2020-07-16 2020-10-16 广东韶钢松山股份有限公司 焦炉看火孔盖

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3006942C2 (de) * 1980-02-25 1982-10-21 Ateliers Louis Carton S.A., Tournai Füllochverschluß für Koksöfen
US4406619A (en) * 1981-03-30 1983-09-27 Hans Oldengott Sealing lid means for coke oven chamber

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2203698A (en) * 1936-04-11 1940-06-11 Koppers Co Inc Coke oven charging-hole closure construction

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2203698A (en) * 1936-04-11 1940-06-11 Koppers Co Inc Coke oven charging-hole closure construction

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4172598A (en) * 1975-07-01 1979-10-30 Goricon Metallurgical Services Limited Sealing methods
US4389284A (en) * 1981-12-28 1983-06-21 Koppers Company, Inc. Charging hole cover seal
US4390397A (en) * 1981-12-28 1983-06-28 Koppers Company, Inc. Heat dissipating charging hole cover
US4475989A (en) * 1981-12-28 1984-10-09 Raymond Kaiser Engineers Inc. Insulating charging hole cover
CN111778042A (zh) * 2020-07-16 2020-10-16 广东韶钢松山股份有限公司 焦炉看火孔盖

Also Published As

Publication number Publication date
DE2361495C3 (de) 1980-06-19
DE2361495A1 (de) 1974-06-12
DE2361495B2 (de) 1976-12-30

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