JP7436861B2 - Coke oven charging inlet - Google Patents
Coke oven charging inlet Download PDFInfo
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- JP7436861B2 JP7436861B2 JP2021066424A JP2021066424A JP7436861B2 JP 7436861 B2 JP7436861 B2 JP 7436861B2 JP 2021066424 A JP2021066424 A JP 2021066424A JP 2021066424 A JP2021066424 A JP 2021066424A JP 7436861 B2 JP7436861 B2 JP 7436861B2
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- 239000000571 coke Substances 0.000 title claims description 15
- 230000002093 peripheral effect Effects 0.000 claims description 18
- 238000009751 slip forming Methods 0.000 claims description 8
- 239000003245 coal Substances 0.000 description 9
- 238000003763 carbonization Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 240000001549 Ipomoea eriocarpa Species 0.000 description 1
- 235000005146 Ipomoea eriocarpa Nutrition 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
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Description
本発明は、コークス炉の炭化室に石炭を装入するコークス炉装入口に関する。 The present invention relates to a coke oven charging port for charging coal into a coking chamber of a coke oven.
コークス炉炭化室の天井には装入孔があり、ここからコークス原料の石炭を炭化室に装入する。石炭装入後は、装入孔枠に装入孔蓋を嵌合させ、ガス及び粉じんの噴出防止を目的として、装入孔枠と装入孔蓋の間にシール材を流し込んで炭化室を密閉する。なお、本明細書では、「装入孔」とはコークス炉炭化室天井の穴そのものをいい、「コークス炉装入口」とは少なくとも装入孔枠と装入孔蓋とを有する、部材の組み合わせをいう。 There is a charging hole in the ceiling of the coke oven carbonization chamber, through which coal, the raw material for coke, is charged into the carbonization chamber. After charging coal, a charging hole cover is fitted to the charging hole frame, and a sealing material is poured between the charging hole frame and the charging hole cover to prevent gas and dust from blowing out, and the carbonization chamber is closed. Seal tightly. In this specification, the term "charging hole" refers to the hole itself in the ceiling of the coke oven carbonization chamber, and the term "coke oven charging port" refers to a combination of members having at least a charging hole frame and a charging hole cover. means.
特許文献１は、コークス炉の装炭蓋からのガス及び粉じんの噴出防止装置として、内周面（嵌合面）が（逆）円錐状の装炭口（装入孔枠）と、自重により装炭口内周面に圧着される、外周面（嵌合面）が球面座の内蓋（装入孔蓋）とを開示する。しかし、装炭口内周面は（逆）円錐面であるのに対し、内蓋の外周面は球体であるため、装炭口と内蓋の嵌合が点（線）接触となり、石炭等の異物の挟み込みや嵌合面の摩耗等により、隙間が生じやすい。また、装炭蓋が二重構造のため、内蓋から漏れていた場合も外蓋からの漏れを一時的に防ぐことができるものの、内蓋からの漏れ認識できないため、外蓋を開けたときにガスや粉じんが放出されてしまうことがある。さらに、構造が複雑で重い。 Patent Document 1 discloses a coal charging port (charging hole frame) whose inner peripheral surface (fitting surface) is a (reverse) conical shape, and a device for preventing gas and dust from blowing out from a coal charging lid of a coke oven. An inner cover (charging hole cover) whose outer circumferential surface (fitting surface) is a spherical seat is crimped onto the inner circumferential surface of the coal charging port. However, while the inner circumferential surface of the coal charging port is a (reverse) conical surface, the outer circumferential surface of the inner cover is spherical, so the fitting of the coal charging port and the inner cover results in point (line) contact, resulting in coal, etc. Gaps are likely to occur due to foreign objects being caught or abrasion of the mating surfaces. In addition, since the charcoal charging lid has a double structure, even if leakage occurs from the inner lid, it can temporarily prevent leakage from the outer lid, but since leakage from the inner lid cannot be detected, when the outer lid is opened, gas and dust may be released. Furthermore, the structure is complex and heavy.
特許文献２は、タールやカーボンの付着を抑制するために、装入蓋（装入孔蓋）と装入口本体（装入孔枠）の接触部分にセラミック溶射層を設けた装入口本体において、外周面（嵌合面）が凸状の球体の装入蓋と、内周面（嵌合面）が内周方向に凸状（即ち、ラッパ開口部の朝顔形状）の装入口本体とを開示する（第１図）。この装入蓋と装入口本体の嵌合も点（線）接触であり、隙間が生じやすい。隙間が大きい場合はシール材を流し込んでも塞ぎきれないことがある。また、装入蓋は自動で開閉されるが、閉める際は水平に設置されないことが多く、隙間が大きくなることもある。 Patent Document 2 discloses a charging port body in which a ceramic sprayed layer is provided at the contact portion between the charging port lid (charging hole cover) and the charging port body (charging hole frame) in order to suppress the adhesion of tar and carbon. Discloses a spherical charging lid with a convex outer circumferential surface (fitting surface) and a charging port body with an inner circumferential surface (fitting surface) convex in the inner circumferential direction (i.e., morning glory shape of the trumpet opening) (Figure 1). The fitting between the charging lid and the charging port body is also point (line) contact, and gaps are likely to occur. If the gap is large, it may not be possible to completely seal it even if the sealant is poured. In addition, although the charging lid opens and closes automatically, it is often not placed horizontally when closing, and the gap may become large.
本発明は上記実状を鑑みてなされたものであり、本発明の目的は、装入孔蓋と装入孔枠の間に隙間が生じにくく、装入孔蓋が水平に設置されない場合であっても隙間が大きくなることがないコークス炉装入口を提供することである。 The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a method in which a gap is less likely to occur between the charging hole cover and the charging hole frame, and the charging hole cover is not installed horizontally. Another object of the present invention is to provide a coke oven charging inlet in which a gap does not become large.
本開示の一の態様は、
円形の装入孔蓋と、前記装入孔蓋が嵌合される装入孔枠とを有し、
前記装入孔蓋は、前記装入孔枠との嵌合側に、円周方向に連続する円弧状部を有し、
前記装入孔蓋の前記円弧状部は、球体の下半球の一部の外周面で形成され、
前記外周面は、前記球体の直径と平行な、前記円周方向に連続する面であり、
前記装入孔枠は、前記装入孔蓋の前記円弧状部が嵌合される、円周状の内周面を有し、
前記装入孔枠の前記内周面（曲率：１／Ｒ）は、前記円弧状部の前記外周面の曲率（１／ｒ）と実質的に同一の曲率（１／Ｒ＝１／ｒ）で窪んでいることを特徴とするコークス炉装入口に関する。
One aspect of the present disclosure is
It has a circular charging hole cover and a charging hole frame into which the charging hole cover is fitted,
The charging hole cover has an arcuate portion continuous in the circumferential direction on the side that fits into the charging hole frame,
The arcuate portion of the charging hole cover is formed by the outer peripheral surface of a part of the lower hemisphere of the sphere,
The outer peripheral surface is a surface parallel to the diameter of the sphere and continuous in the circumferential direction,
The charging hole frame has a circumferential inner peripheral surface into which the arcuate portion of the charging hole cover is fitted,
The inner circumferential surface (curvature: 1/R) of the charging hole frame has substantially the same curvature (1/R=1/r) as the curvature (1/r) of the outer circumferential surface of the arcuate portion. The present invention relates to a coke oven charging inlet characterized by being recessed.
装入孔蓋は、装入孔枠との嵌合側に、円周方向に連続する円弧状部を有し、装入孔蓋の円弧状部は、球体の下半球の一部の外周面で形成され、外周面は、球体の直径と平行な、円周方向に連続する面である。装入孔枠は、装入孔蓋の円弧状部が嵌合される、円周状の内周面を有する。装入孔枠の内周面（曲率：１／Ｒ）は、円弧状部の外周面の曲率（１／ｒ）と実質的に同一の曲率（１／Ｒ＝１／ｒ）で窪んでいるため、装入孔蓋と装入孔枠との嵌合は面接触となり、隙間が生じることがなく、密閉性が確保される。また、装入孔蓋が水平に設置されない場合であっても、装入孔蓋の、装入孔枠との嵌合面は、装入孔蓋が水平に設置される場合と同様に密接に保たれ、隙間が大きくなることはない。 The charging hole cover has an arc-shaped part continuous in the circumferential direction on the side where it fits into the charging hole frame, and the arc-shaped part of the charging hole cover covers the outer peripheral surface of a part of the lower hemisphere of the sphere. The outer peripheral surface is a continuous surface in the circumferential direction parallel to the diameter of the sphere. The charging hole frame has a circumferential inner peripheral surface into which the arcuate portion of the charging hole cover is fitted. The inner circumferential surface (curvature: 1/R) of the charging hole frame is concave with substantially the same curvature (1/R=1/r) as the curvature (1/r) of the outer circumferential surface of the circular arc portion. Therefore, the fitting between the charging hole cover and the charging hole frame is surface contact, and there is no gap, ensuring airtightness. In addition, even if the charging hole cover is not installed horizontally, the fitting surface of the charging hole cover with the charging hole frame should be as close as when the charging hole cover is installed horizontally. The gap will not become large.
本開示の一の態様では、
前記装入孔蓋の前記外周面が連続して形成されている高さ範囲は、前記装入孔枠の前記内周面が連続して形成されている高さ範囲よりも狭いことが好ましい。
In one aspect of the present disclosure,
It is preferable that a height range in which the outer peripheral surface of the charging hole cover is continuously formed is narrower than a height range in which the inner peripheral surface of the charging hole frame is continuously formed.
装入孔蓋の外周面が連続して形成されている高さ範囲を、装入孔枠の内周面が連続して形成されている高さ範囲よりも狭くすることにより、装入孔蓋の厚さを抑え、装入孔蓋の重量を低減することができる。 By making the height range in which the outer circumferential surface of the charging hole cover is continuously formed narrower than the height range in which the inner circumferential surface of the charging hole frame is continuously formed, the charging hole cover can be The thickness of the charging hole cover can be suppressed and the weight of the charging hole cover can be reduced.
以下、本開示の好適な実施形態について詳細に説明する。なお、以下に説明する本実施形態は、特許請求の範囲に記載された本開示の内容を不当に限定するものではなく、本実施形態で説明される構成のすべてが本開示の解決手段として必須であるとは限らない。 Hereinafter, preferred embodiments of the present disclosure will be described in detail. The present embodiment described below does not unduly limit the content of the present disclosure described in the claims, and all of the configurations described in this embodiment are essential as a solution to the present disclosure. It doesn't necessarily have to be.
図１は、コークス炉装入口１０の装入孔蓋１１及び装入孔枠１２の断面を示す。円形の装入孔蓋１１は装入孔枠１２に嵌合される。装入孔蓋１１は、装入孔枠１２との嵌合側に、円周方向に連続する円弧状部１３を有する。装入孔蓋１１の円弧状部１３は、球体１４（曲率：１／ｒ）の下半球の一部の外周面で形成され、外周面は、球体１４の直径と平行な、円周方向に連続する面である。装入孔枠１２は、装入孔蓋１１の円弧状部１３が嵌合される、円周状の内周面を有する。装入孔枠１２の内周面は、球面１５（曲率：１／Ｒ）の下半球の一部で形成される。
FIG. 1 shows a cross section of a
図２は、本実施形態のコークス炉装入口１０の装入孔蓋１１及び装入孔枠１２の断面を示す。装入孔枠１２の内周面は、円弧状部１３の外周面の曲率（１／ｒ）と実質的に同一の曲率で窪んでいる（即ち、１／Ｒ＝１／ｒ）。装入孔蓋１１と装入孔枠１２との嵌合は面接触となり、隙間が生じることがなく、密閉性が確保される。また、嵌合面の一部が摩耗した場合、面接触だと他の接触面でカバーされるため、耐用期間が延びると考えられる。さらに、装入孔蓋１１が水平に設置されない場合であっても、図３に示すように、装入孔蓋１１の、装入孔枠１２との嵌合面は、装入孔蓋１１が水平に設置される場合と同様に密接に保たれ、隙間が大きくなることはない。隙間が生じた場合も、自動供給されるシール材が円弧状部１３の隙間を流れ落ちる間に乾燥固化するため、円弧状部１３に沿って長い距離で隙間が塞がれ、密閉性が確保される。なお、装入孔蓋１１の、円弧状部１３の外周面を含む球体１４の半径（ｒ）は、装入孔蓋１１の半径より小さくなることはない。
FIG. 2 shows a cross section of the
図２に示すように、装入孔蓋１１の外周面が連続して形成されている高さ範囲（Ｈ２）は、装入孔枠１２の内周面が連続して形成されている高さ範囲（Ｈ１）よりも狭いこと（即ち、Ｈ２＜Ｈ１）が好ましい。これにより、装入孔蓋１１の厚さを抑え、装入孔蓋１１の重量を低減することができる。
As shown in FIG. 2, the height range (H2) in which the outer circumferential surface of the
なお、上記のように本実施形態について詳細に説明したが、本開示の新規事項及び効果から実体的に逸脱しない多くの変形が可能であることは当業者には容易に理解できるであろう。したがって、このような変形例はすべて本開示の範囲に含まれる。例えば、明細書又は図面において、少なくとも一度、より広義又は同義な異なる用語とともに記載された用語は、明細書のいかなる箇所においても、その異なる用語に置き換えることができる。また、本実施形態の構成も本実施形態で説明したものに限定されず、種々の変形が可能である。 Although the present embodiment has been described in detail as above, those skilled in the art will easily understand that many modifications can be made without substantially departing from the novelty and effects of the present disclosure. Therefore, all such modifications are included within the scope of this disclosure. For example, a term that appears at least once in the specification or drawings together with a different term with a broader or synonymous meaning may be replaced by that different term anywhere in the specification. Furthermore, the configuration of this embodiment is not limited to that described in this embodiment, and various modifications are possible.
１０ コークス炉装入口、１１ 装入孔蓋、１２ 装入孔枠、１３ 円弧状部、１４ 装入孔蓋の嵌合面を含む球体、１５ 装入孔枠の嵌合面を含む球面 10 coke oven charging port, 11 charging hole cover, 12 charging hole frame, 13 arcuate portion, 14 spherical body including the fitting surface of the charging hole cover, 15 spherical surface including the fitting surface of the charging hole frame
Claims (1)
前記装入孔蓋は、前記装入孔枠との嵌合側に、円周方向に連続する円弧状部を有し、
前記装入孔蓋の前記円弧状部は、球体の下半球の一部の外周面で形成され、
前記装入孔枠は、前記装入孔蓋の前記円弧状部が嵌合される、円周状の内周面を有し、
前記装入孔枠の前記内周面は、前記円弧状部の前記外周面の曲率と実質的に同一の曲率で窪んでおり、
前記装入孔蓋の前記外周面が連続して形成されている高さ範囲は、前記装入孔枠の前記内周面が連続して形成されている高さ範囲よりも狭いことを特徴とするコークス炉装入口。 It has a circular charging hole cover and a charging hole frame into which the charging hole cover is fitted,
The charging hole cover has an arcuate portion continuous in the circumferential direction on the side that fits into the charging hole frame,
The arcuate portion of the charging hole cover is formed by the outer peripheral surface of a part of the lower hemisphere of the sphere,
The charging hole frame has a circumferential inner peripheral surface into which the arcuate portion of the charging hole cover is fitted,
The inner circumferential surface of the charging hole frame is recessed with a curvature that is substantially the same as the curvature of the outer circumferential surface of the arcuate portion,
A height range in which the outer peripheral surface of the charging hole cover is continuously formed is narrower than a height range in which the inner peripheral surface of the charging hole frame is continuously formed. Coke oven charging inlet.
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Citations (4)
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|---|---|---|---|---|
| KR20030012327A (en) | 2001-07-31 | 2003-02-12 | 주식회사 포스코 | A self sealing device of the feeder cone in a charging car |
| KR100797853B1 (en) | 2006-12-27 | 2008-01-24 | 주식회사 포스코 | Apparatus for charging coal |
| CN201648291U (en) | 2009-11-24 | 2010-11-24 | 马鞍山钢铁股份有限公司 | Coal charging hole sealing device of coke oven |
| DE102013112649A1 (en) | 2013-11-15 | 2015-05-21 | Thyssenkrupp Industrial Solutions Ag | Fülllochdeckelabhebevorrichtung for coke ovens and coke oven assembly |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2345143C2 (en) * | 1973-09-07 | 1982-06-16 | Dr. C. Otto & Comp. Gmbh, 4630 Bochum | Closure for the filling openings of coking ovens |
| JPS5249801B2 (en) * | 1973-11-07 | 1977-12-20 | ||
| DE2925429A1 (en) * | 1979-06-23 | 1981-01-22 | Ruhrkohle Ag | Filling-hole closure for furnace chamber - comprises frame constituted by refractory bricks of filling shaft and cover comprising refractory plug with insulated metal lifting fitting |
| JPS60156155U (en) * | 1984-03-28 | 1985-10-17 | 九州耐火煉瓦株式会社 | Coke furnace coal port |
| JPS62157944U (en) * | 1986-03-26 | 1987-10-07 | ||
| JPS6373341U (en) * | 1986-10-29 | 1988-05-16 |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030012327A (en) | 2001-07-31 | 2003-02-12 | 주식회사 포스코 | A self sealing device of the feeder cone in a charging car |
| KR100797853B1 (en) | 2006-12-27 | 2008-01-24 | 주식회사 포스코 | Apparatus for charging coal |
| CN201648291U (en) | 2009-11-24 | 2010-11-24 | 马鞍山钢铁股份有限公司 | Coal charging hole sealing device of coke oven |
| DE102013112649A1 (en) | 2013-11-15 | 2015-05-21 | Thyssenkrupp Industrial Solutions Ag | Fülllochdeckelabhebevorrichtung for coke ovens and coke oven assembly |
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