JP4835142B2 - Heating furnace charging table and heating furnace charging method - Google Patents

Heating furnace charging table and heating furnace charging method Download PDF

Info

Publication number
JP4835142B2
JP4835142B2 JP2005360063A JP2005360063A JP4835142B2 JP 4835142 B2 JP4835142 B2 JP 4835142B2 JP 2005360063 A JP2005360063 A JP 2005360063A JP 2005360063 A JP2005360063 A JP 2005360063A JP 4835142 B2 JP4835142 B2 JP 4835142B2
Authority
JP
Japan
Prior art keywords
slab
charging
furnace
heating furnace
rolling
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 - Fee Related
Application number
JP2005360063A
Other languages
Japanese (ja)
Other versions
JP2006200038A (en
Inventor
修二 横田
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.)
JFE Steel Corp
Original Assignee
JFE Steel Corp
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 JFE Steel Corp filed Critical JFE Steel Corp
Priority to JP2005360063A priority Critical patent/JP4835142B2/en
Publication of JP2006200038A publication Critical patent/JP2006200038A/en
Application granted granted Critical
Publication of JP4835142B2 publication Critical patent/JP4835142B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Metal Rolling (AREA)

Description

この発明は、熱間圧延ラインに設置された加熱炉に圧延材を装入するための加熱炉装入テーブルおよび加熱炉装入方法に関するものである。   The present invention relates to a heating furnace charging table and a heating furnace charging method for charging a rolling material into a heating furnace installed in a hot rolling line.

圧延ラインに設置された加熱炉に圧延材（例えば、スラブ）を装入する際には、スラブはあらかじめ決められた装入順に従ってスラブヤードで山付けされ、その装入順に装入テーブルに載せられて装入テーブル上を搬送された後、プッシャーによって加熱炉に装入される（例えば、特許文献１参照。）。   When a rolling material (for example, a slab) is charged into a heating furnace installed in a rolling line, the slab is piled up in a slab yard according to a predetermined charging order and placed on the charging table in the charging order. After being transported on the charging table, it is charged into the heating furnace by a pusher (see, for example, Patent Document 1).

この際に、複数の加熱炉がある場合は、どの加熱炉に装入するかを選択する方法として、複数ある加熱炉の炉番号を単純に循環させる方法や、スラブの属性や圧延条件に応じて加熱炉を使い分けする方法など多くの方法がある。   In this case, if there are multiple heating furnaces, depending on the method of simply circulating the furnace number of multiple heating furnaces, the slab attributes and rolling conditions There are many methods such as using different heating furnaces.

スラブの属性に応じて加熱炉を使い分ける方法（以下、「炉分け」と称する）としては、複数の加熱炉を熱片スラブ用の加熱炉と冷片スラブ用の加熱炉として運用するものが代表的である。冷片スラブを加熱して圧延に必要な温度まで加熱する場合と、熱片スラブを加熱して圧延に必要な温度まで加熱する場合とでは、当然ながら必要な炉温設定値も加熱時間すなわち炉内搬送速度も異なる。したがって、それぞれを異なる炉に装入しそれぞれに適切な炉温設定値と炉内搬送速度で操業することにより、製造コストを低減することが一般に行われている。このような炉分けは、前記の熱片スラブと冷片スラブのほか、類似鋼種、類似寸法等、製造コスト低減のためにさまざまな形態により実施されている。   A typical method of using different heating furnaces according to the slab attributes (hereinafter referred to as “furnace separation”) is to operate a plurality of heating furnaces as a heating furnace for a hot piece slab and a heating furnace for a cold piece slab. Is. In the case where the cold piece slab is heated to the temperature necessary for rolling and the case where the hot piece slab is heated to the temperature necessary for rolling, of course, the necessary furnace temperature set value is also determined as the heating time, that is, the furnace. The internal transfer speed is also different. Therefore, it is generally performed to reduce the manufacturing cost by charging each in a different furnace and operating at an appropriate furnace temperature set value and in-furnace transfer speed. Such furnace division is carried out in various forms for reducing the manufacturing cost, such as the above-mentioned hot piece slab and cold piece slab, as well as similar steel types and similar dimensions.

複数ある加熱炉のおのおのは、装入端（装入テーブル側）から装入されると装入順のまま抽出端（抽出テーブル側）で抽出される。加熱炉内の搬送はプッシャーまたはウォーキングビームで行なわれるが、いずれも装入から抽出までの炉内のスラブが同時に移動する。通常、加熱炉は加熱効率を最大化させるためにスラブを稠密に装入するが、装入側のスラブ供給がこの炉内搬送に間に合わない場合には炉内スラブは稠密にはならず、加熱効率の低下を招く。   Each of the plurality of heating furnaces is extracted at the extraction end (extraction table side) in the charging order when charged from the charging end (the charging table side). Transfer in the heating furnace is performed by a pusher or a walking beam, and in both cases, the slab in the furnace from the charging to the extraction moves simultaneously. Normally, a heating furnace loads slabs densely in order to maximize heating efficiency. However, if the slab supply on the charging side is not in time for the transfer in the furnace, the slabs in the furnace do not become dense and heating is performed. It causes a decrease in efficiency.

この稠密装入の破綻を防止する対策として、炉内ウォーキングビームの装入側、抽出側
の２分割化や、装入プッシャーの長腕化がある。これらの装置によれば、ある時期、装入ピッチが抽出ピッチに遅れてしまった場合でも、装入側のスラブを抽出ピッチとは非同期で先詰めすることができる。 As a countermeasure for preventing the collapse of the dense charging, charging side of the furnace walking beam, 2 minutes devoted or extraction side, there is a long arm of the loading pusher. According to these devices, some time, even when charging pitch of Tsu want late to extract pitch, can be previously filled asynchronously with extracts pitch slabs SoIrigawa.

なお、［発明が解決しようとする課題］の欄において、下記の非特許文献１を引用するので、ここに併せて記載しておく。
特開昭６１−１６６９１５号公報 日本鉄鋼協会、「わが国における最近のホットストリップ製造技術」、第２版、１９８７年８月１０日、ｐ.４２、ｐ.５１ In the [Problems to be Solved by the Invention] column, the following Non-Patent Document 1 is cited, which is also described here.
JP 61-166915 A Japan Iron and Steel Institute, “Recent Hot Strip Manufacturing Technology in Japan,” Second Edition, August 10, 1987, p. 42, p. 51

しかし、前述のような対策をとっても、装入側のスラブ供給が抽出ピッチに遅れる場合がある。先のウォーキングビームの２分割化や、装入プッシャーの長腕化はひとつの加熱炉での装入、抽出ピッチの差に対する対策である。通常、加熱炉は複数具備されており、それらの装入口は１系統の装入テーブルに沿って配置されている。従って、もし、ある加熱炉の装入端に装入スペースが無く、該炉への装入予定スラブが装入テーブル上で装入待ちとなった場合には、下流側の加熱炉に装入スペースが確保できていても、下流側の炉への装入予定スラブの搬送はできず、加熱炉の空炉が発生し、加熱効率が低下する。   However, even if the measures described above are taken, the slab supply on the charging side may be delayed to the extraction pitch. Dividing the previous walking beam into two parts and increasing the length of the charging pusher are measures against differences in charging and extraction pitches in one heating furnace. Usually, a plurality of heating furnaces are provided, and their inlets are arranged along a single charging table. Therefore, if there is no charging space at the charging end of a certain heating furnace, and the slab to be charged into the furnace is waiting to be charged on the charging table, it is charged into the downstream heating furnace. Even if the space is secured, the scheduled slab cannot be transported to the downstream furnace, and an empty furnace of the heating furnace is generated, resulting in a reduction in heating efficiency.

例えば、図８に示すように、１号炉３１、２号炉３２、３号炉３３の３台の加熱炉が設置されて、それらの装入口が装入テーブル２０に沿って配置されている場合、２号炉３２に装入スペースが無く、２号炉３２への装入予定スラブ１１が装入テーブル２０上で装入待ちとなった時には、下流側の３号炉３３に装入スペースが確保できていても、２号炉３２への装入予定スラブ１１のために、３号炉３３への装入予定スラブ１２の搬送ができず、３号炉３３の空炉が発生し、加熱効率が低下する。   For example, as shown in FIG. 8, three heating furnaces of No. 1 furnace 31, No. 2 furnace 32, and No. 3 furnace 33 are installed, and their inlets are arranged along the charging table 20. In this case, when there is no charging space in the No. 2 furnace 32 and the slab 11 to be charged into the No. 2 furnace 32 is waiting to be charged on the charging table 20, the charging space in the No. 3 furnace 33 on the downstream side. However, due to the slab 11 scheduled to be charged into the No. 2 furnace 32, the slab 12 scheduled to be charged into the No. 3 furnace 33 cannot be conveyed, and an empty furnace of the No. 3 furnace 33 is generated. Heating efficiency decreases.

特に前述した炉分け操業においては、炉分けされた各炉の炉内搬送速度は異なるために、装入テーブルの下流側の加熱炉に装入スペースが確保できていても、下流側の炉への装入予定スラブの搬送はできないという上記の状況が定常的に発生する。   In particular, in the above-described furnace division operation, the furnace transportation speed of each furnace divided differs, so even if a charging space can be secured in the heating furnace on the downstream side of the charging table, to the downstream furnace. The above-mentioned situation that the slab scheduled to be loaded cannot be transported constantly occurs.

また、近年では生産性向上のために、圧延ラインの上流工程である連続鋳造工程と、圧延工程との時間的同期化が一般的である。この同期化の手法は、非特許文献１（ｐ.４１）に記述されている。簡潔にまとめると、加熱炉を経ず直接圧延ラインへスラブを供給するＨＤＲ（Hot Direct Rolling）、鋳造後スラブヤードを経ず直接加熱炉へ装入し圧延するＤＨＣＲ(Direct Hot Charge Rolling)、スラブヤードへは一旦払い出すが、ヤード内でスラブ順の変更を行わないで加熱炉へ装入する仮置きＨＣＲ、熱片のままヤードでのスラブ順変更を行って加熱炉へ装入するＨＣＲ、スラブヤードで手入れ等をおこなって冷片となったスラブを装入するＣＣＲ(Cold Charge Rolling)に分けられる。 In recent years, in order to improve productivity, it is common to synchronize the continuous casting process, which is an upstream process of the rolling line, with the rolling process. This synchronization method is described in Non-Patent Document 1 (p.41). To summarize, HDR (Hot Direct Rolling), which supplies slab directly to the rolling line without going through the heating furnace, DHCR (Direct Hot Charge Rolling), which slab is loaded directly into the heating furnace without passing through the slab yard after casting, and slab Temporarily put out to the yard, but do not change the slab order in the yard. Temporary placement H C R to be charged into the heating furnace, change the slab order in the yard with a hot piece, and charge into the heating furnace. It can be divided into HCR and CCR (Cold Charge Rolling), in which slabs that have been made into cold pieces after being maintained in a slab yard are inserted.

これらの中で、ＤＨＣＲや仮置きＨＣＲにおける課題のひとつに、鋳造順の制約条件と圧延順の制約条件との不一致がある。すなわち、通常の連続鋳造工程および熱間圧延工程では、同一製品を継続的に製造することはまれで、多品種の製品の製造順を、設備の能力に応じて決定する必要がある。例えば、連続鋳造機はさらに上流工程の製鋼工場の製鋼鍋単位でしかスラブ鋼種を変更できない。またスラブ幅はスラブ１本につき数十ｍｍ程度しか変えることができないし、スラブ長さも前記鋳造鍋をまたがるような切断も品質上問題がある。また、仮置きＨＣＲでヤードにスラブを山付けする際に、下段のスラブに対して上段のスラブが長い場合には、置いたときの姿勢が不安定となってしまうために、スラブ長さにも制約がある。さらに、熱間圧延工程では、製品板厚に関して、先行材の板厚と大幅に異なる場合には圧延機の設定変え精度等に技術的課題があるために、少しずつ製品板厚が変化するような圧延順とすることが望ましい。これについても、非特許文献１（ｐ.５１）に記載されている。   Among these, one of the problems in DHCR and temporary placement HCR is a mismatch between the restriction condition of the casting order and the restriction condition of the rolling order. That is, in the normal continuous casting process and the hot rolling process, it is rare to continuously manufacture the same product, and it is necessary to determine the manufacturing order of various types of products according to the capacity of the equipment. For example, a continuous casting machine can change a slab steel grade only in the steelmaking pan unit of the steelmaking factory of the further upstream process. Further, the slab width can only be changed by about several tens of mm per slab, and the cutting of the slab length across the casting pan has a problem in quality. Also, when laying slabs on the yard with temporary HCR, if the upper slab is longer than the lower slab, the posture when placed will be unstable. There are also restrictions. Furthermore, in the hot rolling process, if the product thickness is significantly different from the thickness of the preceding material, the product thickness may change little by little due to technical issues in the precision of changing the setting of the rolling mill. It is desirable that the rolling order be a proper one. This is also described in Non-Patent Document 1 (p. 51).

このように、連続鋳造工程と圧延工程とが非同期なため、前記の制約に関して、ＣＣＲでは連続鋳造時には鋳造側の制約のみ、圧延時には圧延側の制約を満足するよう製造順を決定し、その違いをスラブヤードでの配替えによって吸収している。しかしＤＨＣＲや仮置きＨＣＲでは、ＣＣＲのような配替えの工程がないため、鋳造順に応じて圧延順を決定せざるを得ず、結果として、ＤＨＣＲや仮置きＨＣＲがあまり実施できないという問題がある。   As described above, since the continuous casting process and the rolling process are asynchronous, the CCR determines the manufacturing order so that only the casting side restrictions are satisfied during continuous casting and the rolling side restrictions are satisfied during rolling. Is absorbed by replacement at the slab yard. However, in DHCR and temporary placement HCR, since there is no replacement process like CCR, the rolling order has to be determined according to the casting order, and as a result, there is a problem that DHCR and temporary placement HCR cannot be carried out much. .

本発明は、上記のような問題を解消するためになされたものであり、加熱炉に圧延材を装入するための加熱炉装入テーブルにおいて、テーブル上に装入待ちの圧延材があっても、下流の加熱炉に空炉が発生することを回避して、加熱効率を維持することができ、あるいは、テーブル上に鋳造順に応じて並べられた圧延材を、圧延側の制約を満足するように並び替えることにより、ＤＨＣＲや仮置きＨＣＲの実施を拡大することができる加熱炉装入テーブルおよび加熱炉装入方法を提供することを目的とするものである。   The present invention has been made to solve the above problems, and in a heating furnace charging table for charging a rolling material into a heating furnace, there is a rolling material waiting to be charged on the table. However, it is possible to maintain the heating efficiency by avoiding the occurrence of an empty furnace in the downstream heating furnace, or to satisfy the restrictions on the rolling side with the rolling materials arranged on the table according to the casting order. It is an object of the present invention to provide a heating furnace charging table and a heating furnace charging method capable of expanding the implementation of DHCR and temporary placement HCR by rearranging in this manner.

上記課題を解決するために、本発明は以下の特徴を有する。   In order to solve the above problems, the present invention has the following features.

［１］熱間圧延ラインに設置された複数の加熱炉に圧延材を装入するための加熱炉装入テーブルであって、テーブル上の圧延材を一時的にテーブル上から退避させる圧延材退避装置を、前記複数の加熱炉の各装入口の位置もしくは隣接する装入口の中間位置に備え、先行の圧延材を前記圧延材退避装置によって一時的にテーブル上から退避させて、後続の圧延材が先行の圧延材を追い越すことができることを特徴とする加熱炉装入テーブル。但し、前記圧延材退避装置は圧延材搬送方向における最下流の位置には備えていないものとする。 [ 1 ] A heating furnace charging table for charging a rolling material into a plurality of heating furnaces installed in a hot rolling line, wherein the rolling material is temporarily retracted from the table. An apparatus is provided at each inlet position of the plurality of heating furnaces or at an intermediate position between adjacent inlets , and the preceding rolling material is temporarily retracted from the table by the rolling material retracting device, and the subsequent rolling material is Can overtake the preceding rolling material. However, the rolling material retracting device is not provided at the most downstream position in the rolling material conveyance direction.

［２］複数の加熱炉に圧延材を装入するための加熱炉装入テーブル上の先行する圧延材を、前記［１］に記載の圧延材退避装置を用いて一時的にテーブル上から退避させ、後続の圧延材を通過させた後、テーブル上に戻すことにより、加熱炉への圧延材装入順を変更することを特徴とする加熱炉装入方法。 [ 2 ] The preceding rolling material on the heating furnace charging table for charging the rolling material into a plurality of heating furnaces is temporarily evacuated from the table using the rolling material evacuation device described in [1]. A heating furnace charging method characterized by changing the order of charging the rolling material into the heating furnace by allowing the subsequent rolling material to pass through and then returning it to the table.

本発明においては、テーブル上の圧延材を一時的にテーブル上から退避させるための圧延材退避装置を備えているので、テーブル上に圧延材が装入待ちになっていても、その下流の加熱炉に後続の圧延材を装入することができ、下流の加熱炉に空炉が発生することを回避して、加熱効率を維持することができる。また、テーブル上に圧延材が鋳造順に並べられていても、先行の圧延材と後続の圧延材とを入れ替えることにより、圧延側の制約の順に並び替えることができ、ＤＨＣＲや仮置きＨＣＲ操業の実施を拡大することができる。   In the present invention, since the rolling material retracting device for temporarily retracting the rolling material on the table from the table is provided, even if the rolling material is waiting to be charged on the table, the downstream heating is performed. The subsequent rolled material can be charged into the furnace, and it is possible to maintain the heating efficiency by avoiding the occurrence of an empty furnace in the downstream heating furnace. In addition, even if the rolled materials are arranged on the table in the order of casting, they can be rearranged in the order of restrictions on the rolling side by replacing the preceding rolled material and the succeeding rolled material. Implementation can be expanded.

本発明の実施形態を図面に基づいて説明する。   Embodiments of the present invention will be described with reference to the drawings.

図１は、本発明の一実施形態に係る加熱炉装入テーブルを示す図である。図１に示すように、この実施形態に係る加熱炉装入テーブル２０は、ローラテーブル２１と、ローラテーブル２１の上方にスラブトング２２を備えている。   FIG. 1 is a view showing a heating furnace charging table according to an embodiment of the present invention. As shown in FIG. 1, the heating furnace charging table 20 according to this embodiment includes a roller table 21 and a slab tongue 22 above the roller table 21.

これにより、ローラテーブル２１上の圧延材（ここではスラブ）１０をスラブトング２２によって吊り上げて、一時的にローラテーブル２１上から退避させることができるようになっている。   Thus, the rolled material (here, slab) 10 on the roller table 21 can be lifted by the slab tongue 22 and temporarily retracted from the roller table 21.

そして、この加熱炉装入テーブル２０における動作例を図２に示す。   And the operation example in this heating furnace charging table 20 is shown in FIG.

図２（ａ）に示すように、ローラテーブル２１上に先行のスラブ１１が装入待ちになっているところへ、下流側の加熱炉（図示せず）に装入予定の後続のスラブ１２が搬送されてきた場合には、図２（ｂ）に示すように、先行のスラブ１１をスラブトング２２によって吊り上げて一時的にローラテーブル２１上から退避させ、後続のスラブ１２を下流側に搬送する。そして、後続のスラブ１２が先行のスラブ１１を追い越したら、図２（ｃ）に示すように、先行のスラブ１１をローラテーブル２１上に戻す。   As shown in FIG. 2 (a), the succeeding slab 12 to be charged in the downstream heating furnace (not shown) is placed on the roller table 21 where the preceding slab 11 is waiting to be charged. When it has been conveyed, as shown in FIG. 2B, the preceding slab 11 is lifted by the slab tongue 22 and temporarily retracted from the roller table 21, and the succeeding slab 12 is conveyed downstream. When the succeeding slab 12 passes the preceding slab 11, the preceding slab 11 is returned to the roller table 21 as shown in FIG.

図３、図４は、１号炉３１、２号炉３２、３号炉３３の３台の加熱炉が設置されて、それらの装入口が加熱炉装入テーブル２０に沿って配置されている場合の例である。なお、図中の３４は抽出テーブルである。   3 and FIG. 4, three heating furnaces of No. 1 furnace 31, No. 2 furnace 32, and No. 3 furnace 33 are installed, and their inlets are arranged along the heating furnace charging table 20. This is an example. In the figure, 34 is an extraction table.

図３に示す加熱炉装入テーブル２０では、１号炉３１の装入口近傍のローラテーブル２１上方にスラブトング２２ａが設置され、２号炉３２の装入口近傍のローラテーブル２１上方にスラブトング２２ｂが設置されている。   In the heating furnace charging table 20 shown in FIG. 3, a slab tongue 22 a is installed above the roller table 21 near the charging inlet of the No. 1 furnace 31, and a slab tongue 22 b is set above the roller table 21 near the charging inlet of the No. 2 furnace 32. Has been.

これによって、１号炉３１の装入待ちをしているスラブを追い越したい時には、その装入待ちのスラブをスラブトング２２ａによって退避させ、２号炉３２の装入待ちをしているスラブを追い越したい時には、その装入待ちのスラブをスラブトング２２ｂによって退避させる。   Thus, when it is desired to overtake the slab waiting for the charging of the first furnace 31, the slab waiting for the charging is evacuated by the slab tong 22a and the slab waiting for the charging of the second furnace 32 is to be overtaken. Sometimes, the slab waiting to be loaded is evacuated by the slab tongue 22b.

また、図４に示す加熱炉装入テーブル２０では、１号炉３１の装入口と２号炉３２の装入口の中間位置のローラテーブル２１上方にスラブトング２２ｃが設置されている。   In addition, in the heating furnace charging table 20 shown in FIG. 4, a slab tongue 22 c is installed above the roller table 21 at an intermediate position between the charging inlet of the first furnace 31 and the charging inlet of the second furnace 32.

これによって、１号炉３１の装入待ちをしているスラブを追い越したい時には、その装入待ちのスラブを下流に移動させてスラブトング２２ｃによって退避させ、２号炉３２の装入待ちをしているスラブを追い越したい時には、その装入待ちのスラブを上流に移動させてスラブトング２２ｃによって退避させる。   As a result, when it is desired to overtake the slab waiting to be charged in the No. 1 furnace 31, the slab waiting to be charged is moved downstream and evacuated by the slab tong 22c. When it is desired to overtake the existing slab, the slab waiting for loading is moved upstream and retracted by the slab tongue 22c.

このようにして、この実施形態においては、ローラテーブル２１上のスラブを一時的にローラテーブル２１上から退避させるためのスラブトング２２を備えているので、ローラテーブル２１上にスラブ１１が装入待ちになっていても、その下流の加熱炉に後続のスラブ１２を装入することができ、下流の加熱炉に空炉が発生することを回避して、加熱効率を維持することができる。   Thus, in this embodiment, since the slab tongue 22 for temporarily retracting the slab on the roller table 21 from the roller table 21 is provided, the slab 11 waits for loading on the roller table 21. Even if it becomes, the succeeding slab 12 can be charged in the downstream heating furnace, and it can avoid that an empty furnace generate | occur | produces in a downstream heating furnace, and can maintain heating efficiency.

なお、この実施形態においては、スラブ退避装置として、スラブトング２２を用いているが、それに代えて、図５に示すように、ローラテーブル２１のロールを、ひとつ置きに、スラブを搭載したまま上昇するテーブルロール２３にしてもよい。また、図６に示すように、スラブをテーブルロール間のスキッドで持ち上げるスキッドリフタ２４を設けたり、図７に示すように、スラブの退避と戻しが可能なプッシャー２５ａ、２５ｂを設けたりしてもよい。   In this embodiment, the slab tong 22 is used as the slab retracting device. Instead, as shown in FIG. 5, every other roll of the roller table 21 is raised while the slab is mounted. The table roll 23 may be used. Further, as shown in FIG. 6, a skid lifter 24 for lifting the slab with a skid between table rolls may be provided, or as shown in FIG. 7, pushers 25a and 25b capable of retracting and returning the slab may be provided. Good.

さらに、以上の実施形態では、先行のスラブ１１が装入待ちとなった場合に、これを一時的にローラテーブル２１上から退避させ、後続のスラブ１２が追い越す場合について説明したが、本発明はこれに限定されるものではない。ＤＨＣＲや仮置きＨＣＲ操業において、ローラテーブル上にスラブが鋳造順に応じて並べられている場合に、本発明の加熱炉装入テーブルによれば、後続のスラブが先行のスラブを追い越すことができ、テーブル上のスラブを圧延側の制約を満足するように並び替えることができる。スラブ退避装置の構成や、追い越しを行う具体的な方法は、前述の実施形態と同様とすればよい。   Furthermore, in the above embodiment, when the preceding slab 11 is waiting to be loaded, this is temporarily retracted from the roller table 21 and the succeeding slab 12 is overtaken. It is not limited to this. In DHCR and temporary HCR operations, when the slabs are arranged on the roller table according to the casting order, according to the heating furnace charging table of the present invention, the succeeding slab can overtake the preceding slab, The slabs on the table can be rearranged so as to satisfy the restrictions on the rolling side. The configuration of the slab evacuation device and the specific method for overtaking may be the same as in the above-described embodiment.

本発明の一実施形態の説明図である。It is explanatory drawing of one Embodiment of this invention. 本発明の一実施形態における動作例を示す図である。It is a figure which shows the operation example in one Embodiment of this invention. 加熱炉が３台の場合の一例を示す図である。It is a figure which shows an example in case there are three heating furnaces. 加熱炉が３台の場合の他の例を示す図である。It is a figure which shows the other example in the case of three heating furnaces. 本発明の他の実施形態の説明図である。It is explanatory drawing of other embodiment of this invention. 本発明の他の実施形態の説明図である。It is explanatory drawing of other embodiment of this invention. 本発明の他の実施形態の説明図である。It is explanatory drawing of other embodiment of this invention. 従来技術の説明図である。It is explanatory drawing of a prior art.

符号の説明Explanation of symbols

１０ スラブ
１１ 先行のスラブ
１２ 後続のスラブ
２０ 装入テーブル
２１ ローラテーブル
２２、２２ａ、２２ｂ、２２ｃ スラブトング
２３ テーブルロール
２４ スキッドリフタ
２５ プッシャー
３１ １号炉
３２ ２号炉
３３ ３号炉
３４ 抽出テーブル 10 Slab
DESCRIPTION OF SYMBOLS 11 Leading slab 12 Subsequent slab 20 Loading table 21 Roller table 22, 22a, 22b, 22c Slab tong 23 Table roll 24 Skid lifter 25 Pusher 31 No. 1 furnace 32 No. 2 furnace 33 No. 3 furnace 34 Extraction table

Claims (2)

熱間圧延ラインに設置された複数の加熱炉に圧延材を装入するための加熱炉装入テーブルであって、テーブル上の圧延材を一時的にテーブル上から退避させる圧延材退避装置を、前記複数の加熱炉の各装入口の位置もしくは隣接する装入口の中間位置に備え、先行の圧延材を前記圧延材退避装置によって一時的にテーブル上から退避させて、後続の圧延材が先行の圧延材を追い越すことができることを特徴とする加熱炉装入テーブル。但し、前記圧延材退避装置は圧延材搬送方向における最下流の位置には備えていないものとする。 A heating furnace charging table for charging a rolling material into a plurality of heating furnaces installed in a hot rolling line, a rolling material retracting device for temporarily retracting the rolling material on the table from the table , Provided at the position of each charging inlet of the plurality of heating furnaces or at an intermediate position between the adjacent charging inlets , the preceding rolled material is temporarily retreated from the table by the rolled material retracting device, and the subsequent rolled material is preceded by the preceding rolled material. A heating furnace charging table characterized by being able to overtake the rolled material. However, the rolling material retracting device is not provided at the most downstream position in the rolling material conveyance direction. 複数の加熱炉に圧延材を装入するための加熱炉装入テーブル上の先行する圧延材を、請求項１に記載の圧延材退避装置を用いて一時的にテーブル上から退避させ、後続の圧延材を通過させた後、テーブル上に戻すことにより、加熱炉への圧延材装入順を変更することを特徴とする加熱炉装入方法。 The preceding rolling material on the heating furnace charging table for charging the rolling material into a plurality of heating furnaces is temporarily retracted from the table using the rolling material retracting device according to claim 1, A heating furnace charging method characterized by changing the order of charging the rolling material into the heating furnace by passing the rolling material and then returning it to the table.
JP2005360063A 2004-12-22 2005-12-14 Heating furnace charging table and heating furnace charging method Expired - Fee Related JP4835142B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005360063A JP4835142B2 (en) 2004-12-22 2005-12-14 Heating furnace charging table and heating furnace charging method

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2004370451 2004-12-22
JP2004370451 2004-12-22
JP2005360063A JP4835142B2 (en) 2004-12-22 2005-12-14 Heating furnace charging table and heating furnace charging method

Publications (2)

Publication Number Publication Date
JP2006200038A JP2006200038A (en) 2006-08-03
JP4835142B2 true JP4835142B2 (en) 2011-12-14

Family

ID=36958291

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005360063A Expired - Fee Related JP4835142B2 (en) 2004-12-22 2005-12-14 Heating furnace charging table and heating furnace charging method

Country Status (1)

Country Link
JP (1) JP4835142B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102368023A (en) * 2011-10-19 2012-03-07 芜湖金龙模具锻造有限责任公司 Feeding vehicle of thermal treatment furnace
CN108838220A (en) * 2018-06-20 2018-11-20 新疆八钢铁股份有限公司 Slab sequencing roller-way
CN113566567B (en) * 2021-07-29 2023-07-28 中冶华天南京工程技术有限公司 Composite heat accumulating type heating furnace with layered utilization of hearth space and production system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51137280A (en) * 1975-05-22 1976-11-27 Mitsui Eng & Shipbuild Co Ltd Stopping device of articles on a roller conveyer
US4539795A (en) * 1983-07-26 1985-09-10 R. J. Reynolds Tobacco Company Orientation, accumulation and positioning machine
JP2500266B2 (en) * 1991-02-27 1996-05-29 川崎製鉄株式会社 Standby device for rolled material waiting for cooling time in hot continuous rolling line
JP3264472B2 (en) * 1994-12-20 2002-03-11 川崎製鉄株式会社 Slab group transfer order determination method
JPH08323404A (en) * 1995-06-02 1996-12-10 Sumitomo Light Metal Ind Ltd Hot rough rolling method and hot rough rolling equipment

Also Published As

Publication number Publication date
JP2006200038A (en) 2006-08-03

Similar Documents

Publication Publication Date Title
KR101146931B1 (en) Roller hearth furnace for heating and/or temperature equalization of steel or steel alloy continuous cast products and method for using a roller hearth furnace
JP4835142B2 (en) Heating furnace charging table and heating furnace charging method
KR101133452B1 (en) Method for milling thin and/or thick slabs made of steel materials into hot-rolled strip
WO2013153879A1 (en) Hot-rolling-sequence determination system, and hot-rolling-sequence determination method
US11007556B2 (en) Production equipment line for hot-rolled steel strip and production method for hot-rolled steel strip
KR20120011755A (en) Temperature maintenance and/or possible heating apparatus for long metal products and related method
JP2009263701A (en) Method for heating material to be heated
JP3948275B2 (en) Seamless steel pipe manufacturing equipment
JP2007246994A (en) Charging method to heating furnace
JP5509838B2 (en) Steel material transfer control method and steel material manufacturing equipment
JP3264472B2 (en) Slab group transfer order determination method
KR102103367B1 (en) Production equipment line for hot-rolled steel strip and production method for hot-rolled steel strip
JPH1190515A (en) Method for storing stock slab, method for preparing rolling order of slab and method for heating slab
JP6299673B2 (en) Rolling control apparatus and method
JP2622458B2 (en) Slab charging device for heating furnace
JPS58221602A (en) Rolling device
JP5884149B2 (en) Rolling material conveyance control method in hot rolling line
JPS62267425A (en) Operating method for heating furnace in alternate rolling system
JP3015336B2 (en) Furnace operation method of heating furnace in alternating rolling system
KR101051295B1 (en) Hot Rolling Equipment
JP3580197B2 (en) Manufacturing method of seamless steel pipe
JP2002035801A (en) Charging method of continuously casting hot slab into heating furnace for hot rolling
JP2024057917A (en) Processing facility and method of metal plate, and scrap
JPH0266112A (en) Means of transporting short-sized billet in heating furnace
JP2604928B2 (en) Billet heating furnace charging method

Legal Events

Date Code Title Description
RD01 Notification of change of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7421

Effective date: 20060920

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20080925

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20100921

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20101005

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20101130

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20110830

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20110912

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20141007

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

LAPS Cancellation because of no payment of annual fees