JP7253558B2 - Hot rolling in-line moving thermal insulation heat treatment process and heat treatment line - Google Patents

Hot rolling in-line moving thermal insulation heat treatment process and heat treatment line Download PDF

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JP7253558B2
JP7253558B2 JP2020537826A JP2020537826A JP7253558B2 JP 7253558 B2 JP7253558 B2 JP 7253558B2 JP 2020537826 A JP2020537826 A JP 2020537826A JP 2020537826 A JP2020537826 A JP 2020537826A JP 7253558 B2 JP7253558 B2 JP 7253558B2
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heat treatment
heat
hot
line
coil
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JP2020534440A (en
JPWO2019057116A5 (en
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勇 陳
蔚 林 朱
野 王
春 禾 趙
涛 宋
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Shanghai Heli Hydraulic Mechanical & Electrical Co Ltd
Baosteel Zhanjiang Iron and Steel Co Ltd
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Shanghai Heli Hydraulic Mechanical & Electrical Co Ltd
Baosteel Zhanjiang Iron and Steel Co Ltd
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Priority claimed from CN201710853613.3A external-priority patent/CN107470377A/en
Priority claimed from CN201810632237.XA external-priority patent/CN110616306A/en
Priority claimed from CN201810632238.4A external-priority patent/CN110616307A/en
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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/004—Heating the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/34—Methods of heating
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/84—Controlled slow cooling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D11/00—Process control or regulation for heat treatments
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0263—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/562—Details
    • C21D9/563—Rolls; Drums; Roll arrangements
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/573—Continuous furnaces for strip or wire with cooling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/663—Bell-type furnaces
    • C21D9/673—Details, accessories, or equipment peculiar to bell-type furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/663—Bell-type furnaces
    • C21D9/675—Arrangements of charging or discharging devices
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/663—Bell-type furnaces
    • C21D9/677—Arrangements of heating devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B11/00—Bell-type furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D11/00—Arrangement of elements for electric heating in or on furnaces
    • F27D11/02—Ohmic resistance heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D19/00—Arrangements of controlling devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B2015/0057—Coiling the rolled product
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/62—Quenching devices
    • C21D1/667—Quenching devices for spray quenching
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material

Description

技術分野
本発明は熱間圧延及び熱処理プロセスに関し、特に熱間圧延インライン移動保温熱処理プロセス及び熱処理ラインに関する。 TECHNICAL FIELD The present invention relates to hot rolling and heat treatment processes, and more particularly to hot rolling in-line moving thermal heat treatment processes and heat treatment lines.

背景技術
熱間圧延及び冷間圧延高強度鋼は、成分設計及び強化メカニズムが複雑なので、従来の熱間圧延プロセスで生産する時、圧延過程又は巻取り後の冷却が不均一で、冷却速度が速すぎて、いずれも製品性能に影響を与え、帯鋼性能のばらつきや、板形劣化等の問題を引き起こす。該問題を解決するために、通常は熱間コイルの巻取り終了後に熱間圧延仕上倉庫に集中して保温徐冷（保温ウォールや保温ピット等）又はオフライン熱処理（ローラーハース炉やベル型炉等）の手段によって改善するが、製造コストの増加や、製造周期の長引き等の問題を招き、しかも一部の手段は性能及び板形品質を改善する目的を完全に達成できない。 BACKGROUND ART Hot-rolled and cold-rolled high-strength steels are complicated in component design and strengthening mechanism. Both are too fast and affect the product performance, causing problems such as variations in strip performance and strip shape deterioration. In order to solve this problem, after the winding of the hot coil is completed, it is usually concentrated in the hot rolling finishing warehouse for thermal slow cooling (thermal insulation walls, thermal insulation pits, etc.) or offline heat treatment (roller hearth furnace, bell-shaped furnace, etc.). ), but it causes problems such as an increase in manufacturing cost and a long manufacturing cycle, and some means cannot completely achieve the purpose of improving performance and board shape quality.

通常の熱間コイル巻取り後の熱処理手段としては、以下のものがある：
１）熱間コイル巻取り後、仕上倉庫に入れ、保温ピットや保温ウォールによって徐冷処理を行う；
２）熱間コイル巻取り後、仕上倉庫に入れ、集中して段積徐冷してから、アンコイラ機群で板を切断し、その後ローラーハース炉で焼戻処理を行う；
３）熱間コイル巻取り後、冷間圧延に入り、冷間圧延ベル型炉で焼鈍処理を行う。 Typical post-hot coiling heat treatment measures include:
1) After the hot coil is wound, it is placed in a finishing warehouse and slowly cooled in a heat-retaining pit or heat-retaining wall;
2) After the hot coil is wound, it is placed in a finishing warehouse, where it is centrally stacked and slowly cooled, then cut into sheets by an uncoiler machine group, and then tempered in a roller hearth furnace;
3) After the hot coil is wound, it is cold rolled and annealed in a cold rolling bell furnace.

元のプロセスは：加熱－圧延－層流冷却－巻取り－オフライン熱処理（保温ピットや熱処理炉等）である。 The original process is: heating - rolling - laminar cooling - coiling - off-line heat treatment (insulation pit, heat treatment furnace, etc.).

従来技術の欠点は：
熱間コイル巻取り後、仕上倉庫に入れ、保温ピットや保温ウォールによって徐冷処理を行う手段では、熱間コイル巻取り後から倉庫に入れるまでの時間は通常３０～１２０分間程度であり、該過程において、熱間コイルの空冷状態での冷却速率が比較的に速く、帯鋼の内／外周と縁部の冷却の不均一が既に発生しており、且つ保温ピットや保温ウォールでは、熱源なしで加熱し、実際、徐冷処理による帯鋼性能、板形品質の改善が非常に限られている；
ローラーハース炉で焼戻処理を行う或いはベル型炉で焼鈍処理を行うと、帯鋼の均一な熱処理を実現できるが、工程の初期投資が巨額であり、しかも帯鋼を再加熱する必要があり、製造コストを顕著に増加させると共に、製品の製造周期を長引く。 The drawbacks of the prior art are:
After the hot coil is wound, it is placed in a finishing warehouse and slowly cooled in a heat-retaining pit or heat-retaining wall. In the process, the cooling rate in the air-cooling state of the hot coil is relatively fast, and the inner/outer circumference and edge of the steel strip have been unevenly cooled, and there is no heat source in the heat-insulating pit or heat-insulating wall. and in fact, the improvement of strip performance and plate quality by slow cooling is very limited;
Tempering in a roller hearth furnace or annealing in a bell-shaped furnace can achieve uniform heat treatment of the steel strip, but the initial investment in the process is huge, and the steel strip needs to be reheated. , which significantly increases the manufacturing cost and prolongs the product manufacturing cycle.

現在、国内外の他の製鋼所は通常、熱間圧延仕上倉庫に入れて集中して（保温ウォールや保温ピット等で）保温徐冷することや、オフライン熱処理（ローラーハース炉やベル型炉等）の手段を用いて、熱間コイルを処理する。 At present, other steel mills at home and abroad usually place them in hot rolling finishing warehouses for centralized thermal insulation (in heat insulation walls, heat insulation pits, etc.), and offline heat treatment (roller hearth furnaces, bell-type furnaces, etc.). ) to treat the hot coil.

例えば、中国特許ＣＮ２０１２１０３３８３３５では、鋼コイルの巻取り終了後にコイルを装荷して輸送する輸送チェイントレーを用いる「ローラートレー式金属帯コイル輸送装置」が開示される。該装置は、単独で鋼コイルを輸送する固定台座だけである。輸送途中で鋼コイルにインライン保温を行うことができない。 For example, Chinese patent CN201210338335 discloses a “roller tray type metal strip coil transporter” using transport chain trays for loading and transporting steel coils after finishing winding. The device is only a fixed pedestal that transports steel coils alone. In-line insulation cannot be applied to steel coils during transportation.

中国特許ＣＮ２０１７１０８５３６１３．３では、保温効果しか持たず、底部構造が完全に密封できないゆえ、鋼コイル保温効果が劣る「インライン保温徐冷装置」が開示される。 Chinese patent CN201710853613.3 discloses an "in-line heat-retaining and slow-cooling device" that only has heat-retaining effect and the steel coil has poor heat-retaining effect because the bottom structure cannot be completely sealed.

日本特許ＪＰ２０１００９４７１０（Ａ）では、専用の保温ピット等の生産ラインが追加して設置された「トンネル式保温カバー」が開示されるが、構築コストが通常高くなり、しかも改造過程の工事期間が長くて順調な生産に影響を与える。 Japanese Patent JP2010094710(A) discloses a "tunnel type heat insulation cover" in which a production line such as a dedicated heat insulation pit is additionally installed, but the construction cost is usually high, and the construction period of the remodeling process is long. and affect smooth production.

韓国特許ＫＲ１５８９９１３（Ｂ１）では、「移動式トンネル保温カバー」が開示され、移動と同時に保温を実現できるが、移動設備全体が保温キャビティ内に含まれ、設備にとってその耐用寿命が低下してしまう。それぞれ独立的な保温や、保温カバーと輸送ラインの完璧な結合を実現できない。 Korean Patent KR1589913 (B1) discloses a "movable tunnel heat insulation cover", which can realize heat insulation at the same time as movement, but the entire movable equipment is contained in the heat insulation cavity, which reduces the service life of the equipment. It is not possible to realize independent heat insulation and perfect connection between the heat insulation cover and the transportation line.

中国特許ＣＮ１０１４１３０５１Ｂでは、保温トンネル構造を採用する「熱延帯鋼仕上加工処理システム”が開示されるが、移動設備全体が保温キャビティ内に含まれ、設備にとってその耐用寿命が低下してしまう。 Chinese patent CN101413051B discloses a "hot rolled strip steel finishing processing system" which adopts a heat-insulating tunnel structure, but the entire moving equipment is contained in the heat-insulating cavity, which reduces the service life of the equipment.

上記従来技術に存在する問題は以下の通りである：
（１）熱間圧延保温装置に存在する最重要問題は、帯鋼が巻取ってから保温装置に入るまでの時間間隔が長すぎて、帯鋼の金属組織変態が殆ど発生若しくは完成したゆえ、オフライン徐冷による熱間コイル性能改善効果は、高強度鋼の品質要求を満たすことができない。熱間コイルを保温カバーに入れるには、２０～３０分間吊ったままで輸送する必要があり、鋼コイルの空冷時間が長すぎて、保温効果と材料性能に影響を与える。 Problems existing in the above prior art are as follows:
(1) The most important problem that exists in the hot rolling heat retaining device is that the time interval between the coiling of the strip steel and entering the heat retaining device is too long, and the metallographic transformation of the strip steel has almost occurred or completed. The hot coil performance improvement effect by off-line slow cooling cannot meet the quality requirements of high strength steel. When the hot coil is put into the heat insulation cover, it needs to be suspended for 20-30 minutes for transportation, which will affect the heat insulation effect and material performance of the steel coil.

（２）専用の保温ピット、保温炉、ベル型炉、熱処理等の生産ラインが追加して設置され、構築コストが通常高くなり、しかも改造過程の工事期間が長くて順調な生産に影響を与える。また、保温効果が劣る（温度降下速度が速い）という問題も存在する。 (2) Additional production lines such as special heat-retaining pits, heat-retaining furnaces, bell-shaped furnaces, heat treatment, etc., which usually lead to high construction costs and long construction periods during the modification process, affecting the smooth production. . In addition, there is also a problem that the heat retaining effect is inferior (the temperature drop rate is fast).

（３）保温カバーは殆どオフラインモード（保温装置が巻取り置き場に静止的に放置されるもの）であり、鋼コイルの吊り輸送で、生産ラインの正常な生産ペースが乱れる。圧延鋼生産ラインの生産能力の発揮が影響され、実際の量産化が困難になる。 (3) Most of the heat insulation cover is in offline mode (the heat insulation device is left stationary in the winding place), and the normal production pace of the production line is disturbed by the hanging transportation of the steel coil. The production capacity of the rolled steel production line will be affected, and actual mass production will be difficult.

（４）輸送チェインを採用する半密閉「トンネル式」保温或いは縦型輸送モードを採用する保温技術は、大量生産の場合に、鋼コイル保温処理時間が不足であることや、保温効果が劣る等の欠点があり、実用化はとても困難である。 (4) Semi-enclosed "tunnel type" heat insulation using transportation chain or heat insulation technology that adopts vertical transportation mode, in the case of mass production, the steel coil heat insulation processing time is insufficient, the heat insulation effect is poor, etc. However, it is difficult to put it into practical use.

発明の内容
本発明の目的は、熱間コイル巻取りプロセス温度を有効に結合し、初めから熱間コイルに有効な保温熱処理を行い、保温処理される熱間コイルを保温装置に従ってインラインで移動させ、差別化された熱処理プロセス要求の実現を確保し、製品性能を有効に改善できるだけでなく、且つ初期投資が低く、高速な大量生産の要求を満たし、エネルギーを省く熱間圧延インライン移動保温熱処理プロセス及び熱処理ラインを提供することにある。 Contents of the Invention The object of the present invention is to effectively combine the hot coil winding process temperature, perform an effective thermal insulation heat treatment on the hot coil from the beginning, and move the hot coil to be thermally treated inline according to the thermal insulation device. , the hot rolling in-line moving heat preservation heat treatment process, which not only ensures the realization of differentiated heat treatment process requirements, can effectively improve product performance, but also has a low initial investment, meets the requirements of high-speed mass production, and saves energy. and to provide a heat treatment line.

上記目的を果たすために、本発明の技術方案は：
スラブを加熱、圧延、層流冷却、巻取りで熱間コイル状態にし、熱間コイルのアンコイル・梱包終了後、３０ｍｉｎ以内に熱間コイルに移動式熱間コイル保温熱処理装置を追加して取り付け、熱間コイルに熱処理を開始すると共に、熱間コイル保温処理領域へインラインで輸送する；熱処理時間が１～４８ｈになったら、空冷方式で冷却した後、鋼コイルを倉庫に入れる；ただし、巻取り温度を２５０～７５０℃の間に制御する、熱間圧延インライン移動保温熱処理プロセスである。 To achieve the above objectives, the technical solution of the present invention is:
The slab is heated, rolled, laminar flow cooled, and coiled to form a hot coil. After uncoiling and packing the hot coil, within 30 minutes, a mobile hot coil thermal insulation heat treatment device is added to the hot coil, When the hot coil starts heat treatment, it is transported inline to the hot coil heat-retaining treatment area; when the heat treatment time is 1-48 hours, the steel coil is put into the warehouse after cooling by air cooling; A hot rolling in-line moving thermal heat treatment process, controlling the temperature between 250-750°C.

好ましくは、巻取り終了後、１０ｍｉｎ以内に熱間コイルに移動式熱間コイル保温熱処理装置を追加して取り付ける。 Preferably, within 10 minutes after the end of winding, a movable hot coil thermal insulation heat treatment device is additionally attached to the hot coil.

好ましくは、前記移動式熱間コイル保温熱処理装置は、保温カバー付き輸送トロリーである。 Preferably, the mobile hot coil heat-retaining heat treatment equipment is a transport trolley with a heat-retaining cover.

好ましくは、前記移動式熱間コイル保温熱処理装置内の自然温度降下速度は１～１０℃／ｈである。 Preferably, the natural temperature drop rate in the moving hot coil heat retaining heat treatment apparatus is 1 to 10° C./h.

好ましくは、前記移動式熱間コイル保温熱処理装置内には、加熱及び/又は真空引き又は/及び不活性ガス吹き込みシステムが設けられる。 Preferably, a heating and/or vacuuming or/and inert gas blowing system is provided in the mobile hot coil thermal insulation heat treatment apparatus.

従来の熱間圧延及び冷間圧延高強度鋼は、固溶強化、細粒強化、変態強化、析出強化等の強化メカニズムで組織性能の要求を満たす場合が多いが、それらの成分設計及びＴＭＣＰプロセスがいずれも複雑で、強度性能及び巻取った後の性能均一性がいずれも熱間コイル温度の保持及び均一な冷却に大きく関係し、自然冷却過程において巻取った後、性能の長手方向又は幅方向のばらつきが広く存在する。上記問題を本質的に改善するために、現在で実行可能な方法は、オフライン熱処理の手段を用いて、熱間コイルを巻取って冷却した後、さらに所定のプロセス温度に加熱してから、保温処理を行い、焼戻又は焼鈍プロセスで製品性能の改善を実現する。 Conventional hot-rolled and cold-rolled high-strength steels often meet the requirements for structural performance through strengthening mechanisms such as solid-solution strengthening, fine-grain strengthening, transformation strengthening, and precipitation strengthening. Both are complicated, strength performance and performance uniformity after winding are both greatly related to the maintenance of the hot coil temperature and uniform cooling, and after winding in the natural cooling process, the performance in the longitudinal direction or width There is wide variation in orientation. In order to essentially ameliorate the above problems, a currently viable method is to use the means of off-line heat treatment to wind the hot coil, cool it, then heat it to a predetermined process temperature, and then heat it. Treating to achieve improved product performance in the tempering or annealing process.

熱間圧延及び冷間圧延高強度鋼の熱間圧延巻取りプロセス温度は通常２５０～７５０℃の間にあり、オフライン熱処理プロセス温度範囲と同様であり、該技術的経路は、巻取り温度を正確に制御することで、熱間コイルの自然冷却の前に、保温プロセス設備によって熱間コイルの合理的なプロセス温度でのインライン熱処理を実現し、所定の時間の保温処理によって熱間コイルの焼戻又は焼鈍熱処理を実現することができ、そのプロセス処理効果はオフライン熱処理と同等であるが、オフライン熱処理に比べて、設備の投資、エネルギーの消費を省き、環境にやさしくて持続可能な熱処理プロセスを実現する。 The hot-rolling coiling process temperature of hot-rolled and cold-rolled high-strength steel is usually between 250-750°C, which is similar to the offline heat treatment process temperature range, and the technical route allows the coiling temperature to be accurately adjusted. , before the natural cooling of the hot coil, the heat preservation process equipment realizes the inline heat treatment of the hot coil at a reasonable process temperature, and the hot coil is tempered by the heat preservation treatment for a predetermined time. Alternatively, annealing heat treatment can be achieved, and the process treatment effect is the same as offline heat treatment, but compared to offline heat treatment, equipment investment and energy consumption can be saved, realizing an environmentally friendly and sustainable heat treatment process. do.

本発明にかかる熱間圧延インライン移動保温熱処理ラインは、熱延鋼コイル巻取り機後段の梱包装置と冷間圧延機群の間に、熱処理輸送チェインローラーコンベアが設置され、該熱処理輸送チェインローラーコンベアに少なくとも１台の移動式熱間コイル保温熱処理装置が設置される；相応に、該熱処理輸送チェインローラーコンベアの両端には、鋼コイルを移動式熱間コイル保温熱処理装置に積み降ろしできる吊り輸送装置がそれぞれ１台設置される；前記移動式熱コイル保温熱処理装置には、熱延鋼コイルに密閉インライン保温を行える保温カバーが設置される。 In the hot rolling in-line moving thermal insulation heat treatment line according to the present invention, a heat treatment transport chain roller conveyor is installed between a packing device in the latter stage of the hot rolled steel coil winder and a group of cold rolling mills, and the heat treatment transport chain roller conveyor is installed. correspondingly, at both ends of the heat treatment transport chain roller conveyor, there is a lifting transport device that can load and unload the steel coil into and from the mobile hot coil heat retaining and heat treating device. The mobile hot coil heat-retaining heat treatment equipment is equipped with a heat-retaining cover for closed in-line heat-retaining of the hot-rolled steel coil.

さらに、前記熱処理輸送チェインローラーコンベアの一側には、鋼コイル保温領域が設置され、該鋼コイル保温領域には、前記熱処理輸送チェインローラーコンベアと接続する少なくとも１つの保温輸送チェインローラーコンベアが設置される。 Further, one side of the heat treatment conveying chain roller conveyor is provided with a steel coil heat preservation area, and the steel coil heat preservation area is provided with at least one heat preservation conveying chain roller conveyor connected with the heat treatment conveying chain roller conveyor. be.

また、前記熱処理輸送チェインローラーコンベア又は保温輸送チェインローラーコンベアには、少なくとも１つの熱処理ワークステーションが設置され、該熱処理ワークステーションには、移動式熱間コイル保温熱処理装置における保温カバー内部を加熱する加熱システム又は／及びガス冷却を行う保護ガス冷却導入システムが設置される。 In addition, at least one heat treatment workstation is installed on the heat treatment transport chain roller conveyor or the heat insulation transport chain roller conveyor, and the heat treatment work station is equipped with a heating device for heating the inside of the heat insulation cover in the mobile hot coil heat insulation heat treatment device. A protective gas cooling introduction system is installed to provide system or/and gas cooling.

さらに、前記熱処理輸送チェインローラーコンベアの冷間圧延機群側の一端には、鋼コイルの情報を鋼コイルにプリントする情報エンコード・プリント装置が設置される。 In addition, an information encoding/printing device for printing the information of the steel coil on the steel coil is installed at one end of the heat treatment transport chain roller conveyor on the side of the cold rolling mill group.

好ましくは、前記移動式熱間コイル保温熱処理装置は、基板と；前記基板の上端面中央部に設置される鋼コイル固定台座と；環状構造のものであって、前記鋼コイル固定台座の中部に水平に外挿されるトレーと；下端が開口され、その内部キャビティ体積が鋼コイルより大きく、前記トレーをカバーして設けられる保温カバーと；前記保温カバーの内側壁に設置される電気加熱装置と；前記保温カバー内に設置される温度センサーと；前記電気加熱装置、温度センサーと電気的に接続される情報収集制御モジュールとを含む。 Preferably, the mobile hot coil heat-retaining heat treatment device comprises: a substrate; a steel coil fixing pedestal installed at the center of the upper end surface of the substrate; a horizontally inserted tray; a heat-retaining cover with an open bottom, the inner cavity volume of which is larger than that of the steel coil, covering the tray; an electric heating device installed on the inner wall of the heat-retaining cover; a temperature sensor installed in the heat insulating cover; and an information collection control module electrically connected with the electric heating device and the temperature sensor.

好ましくは、前記移動式熱間コイル保温熱処理装置には、ガス保護装置及びガスセンサーがさらに含まれ、且つそれぞれ該情報収集制御モジュールと電気的に接続される。 Preferably, the mobile hot-coil heat-retaining heat treatment device further includes a gas protection device and a gas sensor, which are respectively electrically connected to the information gathering control module.

好ましくは、前記情報収集制御モジュール内には、信号送信モジュールが設けられる。
好ましくは、前記鋼コイル固定台座は、上端面が斜面であり、且つ対称に設置される２個の並列的な支持体を含む；２個の支持体の両側の間隙には、それぞれ側面密封装置が設置される。 Preferably, a signal transmission module is provided in the information gathering control module.
Preferably, the steel coil fixing pedestal includes two parallel supports with oblique top surfaces and symmetrically installed; is installed.

好ましくは、前記鋼コイル固定台座の２個の支持体の底部の間には、２個の支持体の底部の間の間隙を閉じ込める底部密封装置が設けられる。 Preferably, a bottom sealing device is provided between the bottoms of the two supports of said steel coil fixing base to close the gap between the bottoms of the two supports.

好ましくは、前記底部密封装置は、前記鋼コイル固定台座の２個の支持体の間に設置されて、鉛直に配置される支持板であって、その両側面の下部に長手方向に沿って均一な間隔で、摺動可能な機構を形成するための若干のローラーが設置される支持板と；前記支持板の頂面に水平に設置され、その大きさが前記２個の支持体の底部の間の間隙に相応する密封板とを含む。 Preferably, the bottom sealing device is a vertically disposed support plate installed between two supports of the steel coil fixing pedestal. a support plate on which a number of rollers are mounted at regular intervals to form a slidable mechanism; mounted horizontally on the top surface of said support plate and whose size is equal to that of the bottom of said two supports; and a sealing plate corresponding to the gap therebetween.

好ましくは、前記支持板の一側端面には電磁ブロックが設けられる；相応に、前記鋼コイル固定台座の２個の支持体の一側端部には電磁ブロックと合わせる金属ストッパブロックが設けられる。 Preferably, one side end of the support plate is provided with an electromagnetic block; correspondingly, one side end of the two supports of the steel coil fixing pedestal is provided with a metal stopper block matching with the electromagnetic block.

好ましくは、前記側面密封装置は、
前記鋼コイル固定台座の２個の支持体の外側、間隙の底部にそれぞれ水平に設置される２個の固定基板と；固定基板の外側面に軸方向に沿って間隔を空けて設置される若干のガイドローラーと；
前記鋼コイル固定台座の２個の支持体の両側の間隙にそれぞれ設置され、その底端が前記固定基板のガイドローラーに摺動可能に設けられる２個のシーラーと；
駆動機構と
を含み、
駆動機構は、
前記２個のシーラーにそれぞれ水平に設置され、その一端がシーラーに接続される２個のラックと；
２個の軸受台座によって前記支持体の間隙に対する反対側に水平に設置される駆動軸と；駆動軸の両端にそれぞれ設置され、ラックと噛み合うピニオンと
を含む。 Preferably, said lateral sealing device comprises:
Outside the two supports of the steel coil fixing pedestal, two fixed substrates horizontally installed at the bottom of the gap respectively; guide rollers of;
two sealers respectively installed in the gaps on both sides of the two supports of the steel coil fixing pedestal, the bottom ends of which are slidably mounted on the guide rollers of the fixing substrate;
a drive mechanism and
The drive mechanism
two racks horizontally installed on the two sealers respectively, one end of which is connected to the sealers;
a drive shaft mounted horizontally on opposite sides of said support gap by means of two bearing pedestals; pinions respectively mounted on both ends of the drive shaft and meshing with the rack.

好ましくは、前記軸受台座は、固定板によって前記支持体の一側に設置され、該固定板の一側には、前記ラックを通すための貫通孔が設けられ、貫通孔上方の固定板外側面には、ラックの頂面と当接するためのローラーが設置される。 Preferably, the bearing pedestal is installed on one side of the support by a fixed plate, one side of the fixed plate is provided with a through-hole for the rack to pass through, and the outer surface of the fixed plate above the through-hole is provided with a roller for contacting the top surface of the rack.

好ましくは、前記密封板とシーラーは複合層構造であり、中間が保温材マットからなり、両側が耐高温鋼板で被覆される。 Preferably, the sealing plate and the sealer have a composite layer structure, the middle is made of a heat insulating material mat, and both sides are covered with high temperature resistant steel plates.

好ましくは、前記シーラーは直角板構造である。
好ましくは、前記保温カバーの側面下部には位置決めブッシュが設けられる；相応に、前記保温カバートレーには該位置決めブッシュと合わせる位置決めピンが設けられる；前記位置決めピンはテーパ状のものが好ましい。 Preferably, said sealer is of rectangular plate construction.
Preferably, a positioning bush is provided on the lower side of the heat insulating cover; correspondingly, the heat insulating cover tray is provided with a positioning pin for matching with the positioning bush; the positioning pin is preferably tapered.

好ましくは、前記保温カバーには、ガス透過孔及び相応のガス排出バルブが設けられる。 Preferably, the heat insulating cover is provided with a gas permeation hole and a corresponding gas discharge valve.

好ましくは、前記保温カバーは複合構造であり、外保護層が高強度鋼板であり、中間層が保温材であり、内層は耐高温ステンレス板である。 Preferably, the heat insulating cover has a composite structure, the outer protective layer is a high-strength steel plate, the intermediate layer is a heat insulating material, and the inner layer is a high temperature resistant stainless steel plate.

好ましくは、前記保温カバーは複合構造であり、内部から外部へ順次に、内部放射層、電気加熱ワイヤー層、中間メッシュ層、中間保温層、外保護層を含む。 Preferably, the heat insulating cover is a composite structure, comprising, from inside to outside, an inner radiation layer, an electric heating wire layer, an intermediate mesh layer, an intermediate heat insulating layer and an outer protective layer.

好ましくは、前記電気加熱装置は電気加熱ワイヤーであり、前記温度センサーは熱電対式センサーである。 Preferably, the electric heating device is an electric heating wire and the temperature sensor is a thermocouple type sensor.

本発明にかかる熱間圧延インライン移動保温熱処理ラインにおいて、
帯鋼を巻取った後、鋼コイル輸送トロリーで鋼コイルをトレーに運んだ直後に、トレーに保温装置を被せ、鋼コイルを保温する。保温カバー及び鋼コイルは、輸送チェインローラーコンベアに従って順調に走行し、後続の鋼コイルの生産・走行に影響を与えることなく、輸送過程において熱処理を実現する。 In the hot rolling inline moving thermal insulation heat treatment line according to the present invention,
After the steel strip is wound, the steel coil transport trolley transports the steel coil to the tray, and immediately after that, the tray is covered with a heat retaining device to keep the steel coil warm. The heat-insulating cover and steel coil run smoothly according to the transportation chain roller conveyor, realizing heat treatment in the transportation process without affecting the production and running of the subsequent steel coil.

輸送トロリー横移動ローラーコンベ装置：保温カバーが付かない無負荷の輸送トロリー装置を帰り輸送チェインローラーコンベアから熱処理輸送チェインローラーコンベアに移動させ、輸送トロリー装置の移動を実現し、輸送トロリーが次の巻取り終了後の熱延鋼コイルを受け取れるように保証する。 Transport trolley lateral movement roller conveyor device: The unloaded transport trolley device without heat insulating cover is moved from the return transport chain roller conveyor to the heat treatment transport chain roller conveyor, realizing the movement of the transport trolley device and the transport trolley to the next winding. Guarantee to receive hot-rolled steel coils after picking.

保温カバー吊り輸送装置は、帰り輸送チェインローラーコンベアの上で動いている保温カバー付き輸送トロリー装置における保温カバーを吊り上げ、その後、保温カバーを熱処理輸送チェインローラーコンベアの上に移動させて待つ。巻取り終了後の熱延鋼が輸送トロリー装置に置かれると、保温カバー吊り上げ輸送装置は保温カバーを自動的に輸送トロリー装置の上に置き、鋼巻取り終了後の熱延鋼コイルの保温を実現する。 The heat insulating cover lifting transport device lifts the heat insulating cover in the transport trolley device with the heat insulating cover moving on the return transport chain roller conveyor, and then moves the heat insulating cover onto the heat treatment transport chain roller conveyor and waits. When the hot rolled steel after winding is placed on the transportation trolley device, the heat insulation cover lifting transportation device automatically puts the heat insulation cover on the transportation trolley device to keep the hot rolled steel coil after the steel winding finished. come true.

保温カバー付き輸送トロリー装置は、鋼コイルのインライン熱処理の要求を実現できる。輸送トロリー装置は、輸送チェインローラーコンベアの上で移動を実現し、熱間圧延・巻取り終了後の鋼コイルを輸送チェイン保温領域に輸送して熱処理を実現することができる。保温カバー、輸送トロリー装置は、保温カバー吊り上げ輸送装置、保温カバー吊り下げ輸送装置によって、離脱と結合を実現できる。 The transport trolley device with heat-insulating cover can realize the requirement of in-line heat treatment of steel coils. The transport trolley device can realize movement on the transport chain roller conveyor, and transport the steel coil after hot rolling and winding to the transport chain heat preservation area to realize heat treatment. The heat insulating cover and transport trolley device can be separated and connected by the heat insulating cover lifting transport device and the heat insulating cover hanging transport device.

単一保温カバー領域：鋼コイルは保温カバー付き輸送トロリー装置によって保温熱処理される。保温カバー付き輸送トロリー装置が熱処理輸送チェインローラーコンベアで走行する時間を制御することにより、熱処理の目的を果たす。 Single Insulated Cover Area: The steel coil is heat treated by a transportation trolley device with an insulated cover. The purpose of heat treatment is achieved by controlling the time that the transport trolley device with heat insulating cover runs on the heat treatment transport chain roller conveyor.

単独保温カバー領域の配置は、保温カバー付き輸送トロリー装置と合わせると共に、保温の必要のある熱延鋼コイルの数量と時間も考慮する必要がある。鋼コイル熱間コイル保温カバーはｎであり、そのうち、ラインにある鋼コイル輸送トロリーの数は＞ｎ＋１である。保温カバーは輸送トロリー装置から離脱すると、保温カバー吊り下げ輸送装置のところで、保温カバーは輸送トロリーに従って帰り輸送チェインローラーコンベアを通じて吊り上げ輸送装置のところへ帰る。 The arrangement of the independent heat-insulating cover area should be matched with the transport trolley device with heat-insulating cover, and the quantity and time of hot-rolled steel coils that need to be insulated should also be considered. There are n steel coil hot coil insulation covers, among which the number of steel coil transport trolleys in the line is >n+1. When the heat insulating cover is released from the transport trolley device, at the heat insulating cover hanging transport device, the heat insulating cover follows the transport trolley and returns to the lifting transport device through the return transport chain roller conveyor.

本発明は特殊バッチの熱延帯鋼に対して、必要に応じて仕上加工特殊処理を行い、保温領域で熱処理ワークステーションを増設することができる。熱処理ワークステーションには、保温カバー内部加熱システム及び保護ガス冷却導入システムが設けられる。 According to the present invention, a special batch of hot-rolled strip steel can be subjected to special finishing treatment as required, and a heat treatment work station can be added in the heat-retaining area. The heat treatment workstation is equipped with a thermal cover internal heating system and a protective gas cooling introduction system.

加熱の必要がある熱延帯鋼の場合、熱延帯鋼輸送トロリーで熱延鋼コイルをワークステーションに輸送し、内部加熱システムで熱延帯鋼を加熱し、関連の熱処理曲線及びプロセス要求によって鋼コイルを二次加熱し、熱延帯鋼全体の性能改善を達成する。 For hot strip steel that needs to be heated, the hot strip transport trolley transports the hot strip coil to the work station, the internal heating system heats the hot strip steel, and according to the relevant heat treatment curve and process requirements, Secondary heating of the steel coil achieves improved performance of the entire hot rolled strip steel.

ガス保護及び迅速な制御冷却の必要がある熱延帯鋼の場合、処理ワークステーションに入った保温カバー付き輸送トロリー装置を保護ガス冷却導入システムと接続する。導入される保護ガスのガス量と比率の制御により、保温カバー装置内部温度を制御する要求を満たす。関連の熱処理曲線及びプロセス要求によって鋼コイルを二次加熱し、熱延帯鋼全体の性能改善を達成する。 For hot-rolled strip steel requiring gas protection and rapid controlled cooling, a transport trolley device with a thermal cover entering the processing workstation is connected with a protective gas cooling introduction system. By controlling the gas amount and ratio of the introduced protective gas, the requirement for controlling the temperature inside the heat insulating cover device is met. The steel coil is secondary heated according to the relevant heat treatment curve and process requirements to achieve the performance improvement of the whole hot rolled strip steel.

熱延帯鋼保温カバーが離脱すると、熱延帯鋼輸送トロリーで熱延帯鋼を情報エンコード・プリント装置に輸送し、鋼コイルの情報を鋼コイルにプリントする。保温カバー離脱後の鋼コイルが鋼コイルの情報を持っていることが保証されると、次のプロセス生産ラインに入る。 After the hot-rolled steel insulation cover is removed, the hot-rolled steel strip transport trolley transports the hot-rolled steel strip to the information encoding and printing device to print the information of the steel coil on the steel coil. When it is guaranteed that the steel coil after removing the heat insulating cover has the information of the steel coil, it enters the next process production line.

情報プリント処理が終了すると、熱処理終了後の鋼コイルを輸送チェインローラーコンベアによって鋼コイル倉庫に輸送し、或いは輸送チェインシステムによって生産ラインの次の生産工程に輸送する。 After the information printing process, the heat-treated steel coil is transported to the steel coil warehouse by the transport chain roller conveyor, or transported to the next production process of the production line by the transport chain system.

本発明にかかる処理ラインには、熱処理ワークステーション、情報エンコード・プリント装置がさらに設けられる；熱処理ワークステーションは、特殊バッチの熱延帯鋼に対して、必要に応じて仕上加工特殊処理を行い、保温領域で熱処理ワークステーションを増設する。熱処理ワークステーションには、保温カバー内部加熱システム及び保護ガス冷却導入システムが設けられる。 The processing line according to the present invention is further equipped with a heat treatment workstation and an information encoding and printing device; Add a heat treatment workstation in the heat insulation area. The heat treatment workstation is equipped with a thermal cover internal heating system and a protective gas cooling introduction system.

情報エンコード・プリント装置：熱延帯鋼輸送トロリーは、熱延帯鋼を情報エンコード・プリント装置に輸送し、鋼コイルの情報を鋼コイルにプリントする。 Information encoding and printing device: The hot strip steel transport trolley transports the hot strip steel to the information encoding and printing device to print the information of the steel coil on the steel coil.

熱処理終了後の鋼コイルは、輸送チェインローラーコンベアに従って鋼コイル貯蔵倉庫に輸送され、冷間圧延又はレベリング・せん断の必要がある鋼コイルは、輸送トロリー回転ローラーコンベア装置によって次の工程の輸送チェインローラーコンベアに移す。 The steel coils after heat treatment are transported to the steel coil storage warehouse according to the transportation chain roller conveyor, and the steel coils that need cold rolling or leveling/shearing are transported to the next process by the transportation trolley rotating roller conveyor device. Transfer to conveyor.

インラインで鋼コイル輸送設備によって鋼コイルの保温、均熱、徐冷を完成するのは、新規な技術である。保温カバーはそれぞれ独立的なものであり、各鋼コイルに対してそれぞれ輸送チェインで輸送する過程において温度を制御することができ、時間を省くと共に、生産のペースと効率を向上させる。 It is a new technology to complete the heat preservation, soaking and slow cooling of steel coils by in-line steel coil transport equipment. The heat-insulating cover is independent, and the temperature can be controlled for each steel coil in the process of transporting it in the transport chain, saving time and improving the pace and efficiency of production.

本発明の有利な効果は、
本発明にかかる熱間圧延インライン移動保温熱処理プロセスは、熱間コイルを巻取った直後に、従来のオフライン熱処理の代わりに、保温装置によって熱間コイルのインライン移動熱処理を実現し、製品性能、板形品質の改善及び省エネルギー・消耗低減の目的を果たす。 An advantageous effect of the present invention is that
The hot rolling in-line moving thermal insulation heat treatment process according to the present invention realizes in-line moving heat treatment of the hot coil by a thermal insulation device instead of the conventional offline heat treatment immediately after winding the hot coil. It serves the purpose of improving shape quality and saving energy and reducing consumption.

熱延及び冷延高強度鋼熱間コイルの「インラインモード」の保温熱処理により、巻取った後の空冷が鋼コイル性能に与える影響を回避し、熱延及び冷延高強度鋼の性能の改善を実現する。 "In-line mode" thermal insulation heat treatment of hot-rolled and cold-rolled high-strength steel hot coils avoids the impact of air cooling after coiling on steel coil performance, improving the performance of hot-rolled and cold-rolled high-strength steels. Realize

本発明は、巻取った後の熱延鋼コイルに対して輸送チェインで輸送する過程においてインライン熱処理を行い、鋼コイルが巻取り機から取り出されて巻取りが終了した直後に、鋼コイルに移動式熱間コイル保温熱処理装置を取り付け、鋼コイル自身の熱によって鋼コイルに均熱、徐冷の熱処理プロセスを施し、高効率、省エネルギー及び歩留まり向上の目的を果たす。 In the present invention, in-line heat treatment is performed on the coiled hot-rolled steel coil in the process of transporting it by a transport chain, and the steel coil is taken out from the winder and transferred to the steel coil immediately after the coiling is completed. Equipped with a type hot coil heat-retaining heat treatment device, the heat treatment process of soaking and slow cooling is applied to the steel coil by the heat of the steel coil itself, achieving the purpose of high efficiency, energy saving and yield improvement.

本発明にかかる生産ラインは、巻取った直後に帯鋼コイルの保温処理を行うことで、鋼コイルが巻取ってから徐冷装置に入るまでの時間が長すぎることによって招かれる性能改善の不十分、ならびに帯鋼の長手方向及び幅方向に性能のばらつきが大きいという難題を非常に大きく改善する。冷間圧延生産の際に圧延力の急激な変動が生じることや、冷間圧延製品の厚さが公差標準を超えることは回避され、冷間圧延酸洗連続圧延機群の圧延安定性は増強され、冷間圧延超高強度鋼の歩留まりは上がる。 In the production line according to the present invention, since the steel strip coil is heat-retained immediately after winding, the time required for the steel coil to enter the slow cooling device after winding is too long. sufficient, and greatly improve the challenge of large performance variability across the length and width of the strip. Abrupt fluctuations in rolling force during cold rolling production and the thickness of cold rolled products exceeding the tolerance standard are avoided, and the rolling stability of the cold rolling pickling continuous rolling mill group is enhanced. and increase the yield of cold-rolled ultra-high-strength steel.

１．即時性：熱間コイルを巻取った直後に保温処理は実現され、時間間隔が短くなる。
２．インライン性：熱間コイルの保温は直接に輸送チェインで実現され、余分なプロセスが無い。 1. Immediateness: The heat preservation treatment is realized immediately after winding the hot coil, and the time interval is shortened.
2. In-line: The heat preservation of hot coils is directly realized in the transport chain, without extra processes.

３．経済性：鋼コイルの残留熱を利用して巻取った後の熱処理を実現し、省エネルギーで、環境にやさしい。 3. Economical: The residual heat of the steel coil is used to achieve heat treatment after winding, which is energy-saving and environmentally friendly.

４．プロセス性：保温効果は望ましく、高強度鋼の保温プロセス要求を満たせる。 4. Processability: The heat preservation effect is good, and it can meet the heat preservation process requirements of high-strength steel.

図１はインライン移動保温が鋼コイル性能に与える影響の概念図である。FIG. 1 is a conceptual diagram of the influence of in-line moving heat retention on steel coil performance. 図２はインライン移動保温が鋼コイル性能に与える影響の概念図である。FIG. 2 is a conceptual diagram of the influence of in-line moving heat retention on steel coil performance. 図３は本発明にかかる熱延帯鋼熱処理ラインの実施例の模式図である。FIG. 3 is a schematic diagram of an embodiment of a hot-rolled strip steel heat treatment line according to the present invention. 図４は本発明にかかる熱延帯鋼熱処理ラインの実施例の模式図である。FIG. 4 is a schematic diagram of an embodiment of a hot-rolled strip steel heat treatment line according to the present invention. 図５は本発明にかかる熱延帯鋼熱処理ラインの実施例の模式図である。FIG. 5 is a schematic diagram of an embodiment of a hot-rolled strip steel heat treatment line according to the present invention. 図６は本発明にかかる移動式熱間コイル保温熱処理装置の実施例１の構造の模式図である。FIG. 6 is a structural schematic diagram of embodiment 1 of the mobile hot coil thermal insulation heat treatment apparatus according to the present invention. 図７は本発明にかかる移動式熱間コイル保温熱処理装置の実施例１の側面図である。FIG. 7 is a side view of Embodiment 1 of the mobile hot coil heat retaining heat treatment apparatus according to the present invention. 図８は本発明にかかる移動式熱間コイル保温熱処理装置の実施例２の正面図である。FIG. 8 is a front view of Embodiment 2 of the mobile hot coil heat retaining heat treatment apparatus according to the present invention. 図９は本発明にかかる移動式熱間コイル保温熱処理装置の実施例３の正面図である。FIG. 9 is a front view of Embodiment 3 of the mobile hot coil heat retaining heat treatment apparatus according to the present invention. 図１０は本発明にかかる移動式熱間コイル保温熱処理装置の実施例における保温カバーの局所断面図である。FIG. 10 is a local cross-sectional view of a heat insulation cover in an embodiment of the mobile hot coil heat insulation heat treatment apparatus according to the present invention. 図１１は本発明にかかる移動式熱間コイル保温熱処理装置の実施例１の立体図である。FIG. 11 is a three-dimensional view of Embodiment 1 of the mobile hot coil thermal insulation heat treatment apparatus according to the present invention. 図１２は本発明にかかる移動式熱間コイル保温熱処理装置の実施例１の正面図である。FIG. 12 is a front view of Embodiment 1 of the mobile hot coil heat retaining heat treatment apparatus according to the present invention. 図１３は本発明にかかる移動式熱間コイル保温熱処理装置の実施例１における底部密封装置の立体図である。FIG. 13 is a three-dimensional view of the bottom sealing device in Embodiment 1 of the movable hot coil heat retaining heat treatment apparatus according to the present invention. 図１４は本発明にかかる移動式熱間コイル保温熱処理装置の実施例１の正面図である。FIG. 14 is a front view of Embodiment 1 of the mobile hot coil heat retaining heat treatment apparatus according to the present invention. 図１５は図１４の側面図である。15 is a side view of FIG. 14. FIG. 図１６は本発明にかかる移動式熱間コイル保温熱処理装置の実施例１の下面立体図である。FIG. 16 is a three-dimensional bottom view of Embodiment 1 of the mobile hot coil heat retaining heat treatment apparatus according to the present invention. 図１７は図１６のＡ部分の拡大模式図である。FIG. 17 is an enlarged schematic diagram of part A in FIG.

具体的な実施形態
本発明にかかる熱間圧延インライン移動保温熱処理プロセスは、スラブを加熱、圧延、層流冷却、巻取りで熱間コイル状態にし、熱間コイルのアンコイル・梱包終了後、３０ｍｉｎ以内に熱間コイルに移動式熱間コイル保温熱処理装置を追加して取り付け、熱間コイルに熱処理を開始すると共に、熱間コイル保温処理領域へインラインで輸送する；熱処理時間が１～４８ｈになったら、空冷方式で冷却した後、鋼コイルを倉庫に入れる；ただし、巻取り温度を２５０～７５０℃の間に制御する。 Specific embodiment In the hot rolling in-line moving thermal insulation heat treatment process according to the present invention, the slab is heated, rolled, laminar cooling, and coiled into a hot coil state, and after uncoiling and packing of the hot coil, within 30 minutes In addition, a mobile hot coil heat-retaining heat treatment device is installed on the hot coil, and heat treatment is started on the hot coil, and in-line transport to the hot coil heat-retaining treatment area; when the heat treatment time reaches 1 to 48 hours , put the steel coil into warehouse after cooling by air cooling method; provided that the winding temperature is controlled between 250-750°C.

好ましくは、巻取り終了後、１０ｍｉｎ以内に熱間コイルに移動式熱間コイル保温熱処理装置を追加して取り付ける。 Preferably, within 10 minutes after the end of winding, a movable hot coil thermal insulation heat treatment device is additionally attached to the hot coil.

好ましくは、前記移動式熱間コイル保温熱処理装置は、保温カバー付き輸送トロリーである。 Preferably, the mobile hot coil heat-retaining heat treatment equipment is a transport trolley with a heat-retaining cover.

好ましくは、前記移動式熱間コイル保温熱処理装置内の自然温度降下速度は１～１０℃／ｈである。 Preferably, the natural temperature drop rate in the moving hot coil heat retaining heat treatment apparatus is 1 to 10° C./h.

好ましくは、前記移動式熱間コイル保温熱処理装置内には、加熱及び/又は真空引き又は/及び不活性ガス吹き込みシステムが設けられる。 Preferably, a heating and/or vacuuming or/and inert gas blowing system is provided in the mobile hot coil thermal insulation heat treatment apparatus.

図１、図２を参照して、本発明は、熱延及び冷延高強度鋼熱間コイルの「インラインモード」の保温熱処理により、巻取った後の空冷が鋼コイル性能に与える影響を回避し、熱延及び冷延高強度鋼の性能の改善を実現する。 Referring to Figures 1 and 2, the present invention avoids the impact of post-coiling air cooling on steel coil performance through "in-line mode" thermal insulation heat treatment of hot-rolled and cold-rolled high-strength steel hot coils. and improve the performance of hot-rolled and cold-rolled high-strength steels.

図３を参照して、本発明にかかる熱延帯鋼熱処理ラインは、熱延鋼コイル巻取り機１０後段の梱包装置２０と冷間圧延機群の間に、熱処理輸送チェインローラーコンベア３０が設置され、該熱処理輸送チェインローラーコンベア３０に少なくとも１台の移動式熱間コイル保温熱処理装置４０が設置される；相応に、該熱処理輸送チェインローラーコンベア３０の両端には、鋼コイルを移動式熱間コイル保温熱処理装置に積み降ろしできる吊り輸送装置５０、５０’がそれぞれ１台設置される；前記移動式熱コイル保温熱処理装置４０には、熱延鋼コイルに密閉インライン保温を行える保温カバーが設置される。 Referring to FIG. 3, in the hot-rolled strip steel heat treatment line according to the present invention, a heat-treated transport chain roller conveyor 30 is installed between a group of cold rolling mills and a packing device 20 downstream of a hot-rolled steel coil winder 10. At least one mobile hot coil heat-retaining heat treatment device 40 is installed on the heat treatment transport chain roller conveyor 30; A hanging transportation device 50, 50' is installed to load and unload the coil heat-retaining heat treatment device; the mobile heat-coil heat-retaining heat-treating device 40 is equipped with a heat-retaining cover capable of closed in-line heat-retaining of the hot-rolled steel coil. be.

図４を参照して、前記熱処理輸送チェインローラーコンベア３０又は保温輸送チェインローラーコンベア７０には、少なくとも１つの熱処理ワークステーション８０が設置され、該熱処理ワークステーション８０には、移動式熱間コイル保温熱処理装置における保温カバー内部を加熱する加熱システム又は／及びガス冷却を行う保護ガス冷却導入システムが設置される；９０は回転ローラーコンベアである。 Referring to FIG. 4, the heat treatment transport chain roller conveyor 30 or the heat preservation transport chain roller conveyor 70 is installed with at least one heat treatment workstation 80, and the heat treatment workstation 80 is equipped with a mobile hot coil heat preservation heat treatment. A heating system for heating the inside of the heat insulating cover in the apparatus or/and a protective gas cooling introduction system for gas cooling are installed; 90 is a rotating roller conveyor.

図５を参照して、前記熱処理輸送チェインローラーコンベア３０の一側には、鋼コイル保温領域６０が設置され、該鋼コイル保温領域６０には、前記熱処理輸送チェインローラーコンベアと接続する少なくとも１つの保温輸送チェインローラーコンベア７０、吊り輸送装置５０”が設置される。 Referring to FIG. 5, one side of the heat treatment transporting chain roller conveyor 30 is provided with a steel coil heat-retaining area 60, and the steel coil heat-retaining area 60 has at least one coil connecting with the heat treatment transport chain roller conveyor. A heat-retaining transport chain roller conveyor 70 and a hanging transport device 50″ are installed.

図５を参照して、前記熱処理輸送チェインローラーコンベア３０の冷間圧延機群側の一端には、鋼コイルの情報を鋼コイルにプリントする情報エンコード・プリント装置９０が設置される。 Referring to FIG. 5, at one end of the heat treatment transport chain roller conveyor 30 on the side of the cold rolling mill group, an information encoding/printing device 90 for printing information of the steel coil on the steel coil is installed.

図５～図１７を参照して、本発明にかかる移動式熱間コイル保温熱処理装置４０は、
基板１と；
前記基板１の上端面中央部に設置される鋼コイル固定台座２と；
環状構造のものであって、前記鋼コイル固定台座２の中部に水平に外挿されるトレー３と；
下端が開口され、その内部キャビティ体積が鋼コイル１００より大きく、前記トレー３をカバーして設けられる保温カバー４と；
前記保温カバー４の内側壁に設置される電気加熱装置５と；
前記保温カバー４内に設置される温度センサー６と；
前記電気加熱装置５、温度センサー６と電気的に接続される情報収集制御モジュール７と
を含む。 With reference to FIGS. 5 to 17, the mobile hot coil thermal insulation heat treatment apparatus 40 according to the present invention includes:
a substrate 1;
a steel coil fixing pedestal 2 installed at the center of the upper end surface of the substrate 1;
a tray 3 of annular structure, which is horizontally inserted over the middle of the steel coil fixing base 2;
a heat-retaining cover 4 having an open bottom end and having an internal cavity volume larger than that of the steel coil 100 and provided to cover the tray 3;
an electric heating device 5 installed on the inner wall of the heat insulating cover 4;
a temperature sensor 6 installed in the heat insulating cover 4;
an information collection control module 7 electrically connected to the electric heating device 5 and the temperature sensor 6;

また、ガス保護装置及びガスセンサー８、８’がさらに含まれ、且それぞれ該情報収集制御モジュール７と電気的に接続される。 Also, a gas protection device and gas sensors 8, 8' are further included and electrically connected with the information gathering control module 7 respectively.

好ましくは、前記情報収集制御モジュール７内には、信号送信モジュールが設けられる。 Preferably, the information gathering control module 7 is provided with a signal transmission module.

好ましくは、前記鋼コイル固定台座２は、上端面が斜面であり、且つ対称に設置される２個の並列的な支持体２１、２２を含む；２個の支持体２１、２２の両側の間隙には、それぞれ側面密封装置９、９’が設置される。 Preferably, the steel coil fixing pedestal 2 includes two parallel supports 21, 22 with oblique top surfaces and symmetrically installed; are provided with lateral sealing devices 9, 9', respectively.

さらに、前記鋼コイル固定台座２の２個の支持体２１、２２の底部の間には、２個の支持体２１、２２の底部の間の間隙を閉じ込める底部密封装置１１が設けられる。 Furthermore, between the bottoms of the two supports 21,22 of the steel coil fixing base 2, a bottom sealing device 11 is provided to close the gap between the bottoms of the two supports 21,22.

好ましくは、前記底部密封装置１１は、
前記鋼コイル固定台座２の２個の支持体２１、２２の間に設置されて、鉛直に配置される支持板１１１であって、その両側面の下部に長手方向に沿って均一な間隔で、摺動可能な機構を形成するための若干のローラー１１２が設置される支持板１１１と；
前記支持板１１１の頂面に水平に設置され、その大きさが前記２個の支持体２１、２２の底部の間の間隙に相応する密封板１１３と
を含む。 Preferably, said bottom sealing device 11 comprises:
A support plate 111 installed between the two supports 21 and 22 of the steel coil fixing base 2 and arranged vertically, and at the lower part of both sides thereof at uniform intervals along the longitudinal direction, a support plate 111 on which some rollers 112 are mounted to form a slidable mechanism;
a sealing plate 113 horizontally installed on the top surface of the support plate 111 and whose size corresponds to the gap between the bottoms of the two supports 21 and 22;

好ましくは、前記密封板１１３は複合層構造であり、中間が保温材マットからなり、両側が耐高温鋼板である。 Preferably, the sealing plate 113 has a composite layer structure, the middle is made of a heat insulating material mat, and both sides are high temperature resistant steel plates.

好ましくは、前記支持板１１１の一側端面には電磁ブロック１１４が設けられる；相応に、前記鋼コイル固定台座の２個の支持体２１、２２の一側端部には電磁ブロック１１４と合わせる金属ストッパブロックが設けられる。 Preferably, one end surface of the support plate 111 is equipped with an electromagnetic block 114; A stop block is provided.

図１５～図１７を参照して、前記側面密封装置９（側面密封装置９を一例とする、以下同じ）は、
前記鋼コイル固定台座２の２個の支持体２１、２２の外側、間隙の底部にそれぞれ水平に設置される２個の固定基板９１、９１’と；固定基板９１、９１’の外側面に軸方向に沿って間隔を空けて設置される若干のガイドローラー９２、９２’と；
前記鋼コイル固定台座２の２個の支持体２１、２２の両側の間隙にそれぞれ設置され、その底端が前記固定基板９１のガイドローラー９２、９２’に摺動可能に設けられる２個のシーラー９３、９３’と；
駆動機構９４と
を含み、
駆動機構９４は、
前記２個のシーラー９３、９３’にそれぞれ水平に設置され、その一端がシーラー９３、９３’に接続される２個のラック９４１と；
２個の軸受台座９４３によって前記支持体２１の間隙に対する反対側に水平に設置される駆動軸９４２と；駆動軸９４２の両端にそれぞれ設置され、ラック９４１と噛み合うピニオン９４４と
を含む。 15 to 17, the side sealing device 9 (the side sealing device 9 is taken as an example, the same applies hereinafter) is
Outside the two supports 21, 22 of the steel coil fixing pedestal 2, two fixing substrates 91, 91' respectively installed horizontally at the bottom of the gap; a number of guide rollers 92, 92' spaced along the direction;
Two sealers respectively installed in the gaps on both sides of the two supports 21, 22 of the steel coil fixing base 2, and whose bottom ends are slidably provided on the guide rollers 92, 92' of the fixing substrate 91. 93, 93′ and;
including a drive mechanism 94 and
The drive mechanism 94 is
Two racks 941 horizontally installed on the two sealers 93, 93' respectively, and one end of which is connected to the sealers 93, 93';
a drive shaft 942 horizontally installed on the opposite side of the gap of the support 21 by two bearing pedestals 943;

好ましくは、前記軸受台座９４３は、固定板９４５によって前記支持体２２１の一側に設置され、該固定板９４５の一側には、前記ラック９４１を通すための貫通孔９４５１が設けられ、貫通孔９４５１上方の固定板９４５外側面には、ラック９４１の頂面と当接するためのローラー９４６が設置される。 Preferably, the bearing pedestal 943 is installed on one side of the support 221 by a fixing plate 945 , and one side of the fixing plate 945 is provided with a through hole 9451 for passing the rack 941 through the through hole. A roller 946 for contacting the top surface of the rack 941 is installed on the outer surface of the fixed plate 945 above 9451 .

好ましくは、前記シーラー９３は複合層構造であり、中間が保温材マットからなり、両側が耐高温鋼板で被覆される。 Preferably, the sealer 93 is a composite layer structure, the middle is made of a heat insulating material mat, and both sides are covered with high temperature resistant steel plates.

好ましくは、前記シーラー９３は直角板構造である。
好ましくは、前記保温カバー４の側面下部には位置決めブッシュ１２が設けられる；相応に、前記鋼コイルトレー３には該位置決めブッシュ１２と合わせる位置決めピン１３が設けられる；前記位置決めピン１３はテーパ状のものが好ましい。 Preferably, said sealer 93 is of rectangular plate construction.
Preferably, a positioning bush 12 is provided at the lower side of the heat insulating cover 4; correspondingly, the steel coil tray 3 is provided with a positioning pin 13 to match the positioning bush 12; things are preferred.

好ましくは、前記保温カバー４には、ガス透過孔及び相応のガス排出バルブ４１が設けられる。 Preferably, the heat insulating cover 4 is provided with a gas permeation hole and a corresponding gas discharge valve 41 .

好ましくは、前記保温カバー４は複合構造であり、外保護層が高強度鋼板であり、中間層が保温材であり、内層は耐高温ステンレス板である。 Preferably, the heat insulating cover 4 has a composite structure, the outer protective layer is a high-strength steel plate, the middle layer is a heat insulating material, and the inner layer is a high temperature resistant stainless steel plate.

好ましくは、前記保温カバー４は複合構造であり、内部から外部へ順次に、内部放射層４２、電気加熱ワイヤー層４３、中間メッシュ層４４、中間保温層４５、外保護層４６を含む；前記保温カバー複合構造はアンカー釘４７によって固定される。 Preferably, the heat-retaining cover 4 is a composite structure, comprising, from the inside to the outside, an inner radiation layer 42, an electric heating wire layer 43, an intermediate mesh layer 44, an intermediate heat-retaining layer 45, and an outer protective layer 46; The cover composite structure is secured by anchor nails 47 .

図５、図６を参照して、前記保温カバー４は方形保温カバー又は円形保温カバーである。 5 and 6, the heat insulating cover 4 is a rectangular heat insulating cover or a circular heat insulating cover.

好ましくは、前記電気加熱装置５は電気加熱ワイヤーであり、前記温度センサー６は熱電対式センサーである。 Preferably, the electric heating device 5 is an electric heating wire and the temperature sensor 6 is a thermocouple type sensor.

本発明は、巻取り後の帯鋼コイルに保温処理を行うと共に、巻取り終了直後の鋼コイルに残留熱を利用して焼鈍処理の目的を果たし、鋼コイルが巻取ってから保温・焼鈍装置に入るまでの時間が長すぎることによって招かれる性能改善の不十分、ならびに帯鋼の長手方向及び幅方向に性能のばらつきが大きいという難題を非常に大きく改善できる。 In the present invention, a heat-retaining treatment is performed on the strip steel coil after winding, and the purpose of annealing treatment is achieved by utilizing the residual heat of the steel coil immediately after winding, and the heat-retaining and annealing device after the steel coil is wound. The difficulty of insufficient performance improvement caused by too long time to enter and large performance variation in the longitudinal direction and width direction of the strip can be greatly improved.

特殊バッチの熱延帯鋼には、高度加工等の特殊処理が必要であり、保温カバー内部に設けられる加熱装置及び保護ガスの冷却導入システムは、必要な場合に、連携して温度の制御を実現することができる。 Special batches of hot-rolled strip steel require special processing such as advanced processing, and the heating device and protective gas cooling introduction system installed inside the heat insulating cover work together to control the temperature when necessary. can be realized.

Claims (23)

スラブを加熱、熱間圧延、層流冷却、巻取りで熱間コイル状態にし、熱間コイルの梱包後、３０ｍｉｎ以内に熱間コイルに移動式熱間コイル保温熱処理装置を追加して取り付け、熱間コイルに熱処理を開始すると共に、熱間コイル保温処理領域へインラインで輸送する；熱処理時間が１～４８ｈになったら、空冷方式で冷却した後、鋼コイルを倉庫に入れる；ただし、巻取り温度を２５０～７５０℃の間に制御し、前記移動式熱間コイル保温熱処理装置内の自然温度降下速度は１～１０℃／ｈであることを特徴とする、熱間圧延インライン移動保温熱処理プロセス。 The slab is heated, hot rolled, laminar cooling, and coiled into a hot coil state. When the heat treatment is started on the hot coil, it is transported in-line to the hot coil heat-retaining treatment area; when the heat treatment time is 1-48 hours, the steel coil is put into the warehouse after cooling by air cooling; is controlled between 250-750° C., and the natural temperature drop rate in the moving hot coil heat-retaining heat treatment equipment is 1-10° C./h. 巻取り終了後、１０ｍｉｎ以内に熱間コイルに移動式熱間コイル保温熱処理装置を追加して取り付けることを特徴とする、請求項１に記載の熱間圧延インライン移動保温熱処理プロセス。 The hot rolling in-line moving heat-retaining heat treatment process of hot rolling according to claim 1, characterized in that a mobile hot-coil heat-retaining heat treatment device is additionally attached to the hot coil within 10 minutes after the winding is finished. 前記移動式熱間コイル保温熱処理装置は、保温カバー付き輸送トロリーであることを特徴とする、請求項１に記載の熱間圧延インライン移動保温熱処理プロセス。 The hot rolling in-line moving heat-retaining heat treatment process of hot rolling according to claim 1, characterized in that said mobile hot-coil heat-retaining heat-treating equipment is a transportation trolley with heat-retaining cover. 前記移動式熱間コイル保温熱処理装置内には、加熱及び／又は真空引き及び／又は不活性ガス吹き込みシステムが設けられることを特徴とする、請求項１又は２又は３に記載の熱間圧延インライン移動保温熱処理プロセス。 4. The hot rolling in-line according to claim 1, 2 or 3, characterized in that a heating and/or vacuuming and/or inert gas blowing system is provided in the moving hot coil thermal insulation heat treatment apparatus. Moving heat preservation heat treatment process. 熱延鋼コイル巻取り機後段の梱包装置と冷間圧延機群の間に、熱処理輸送チェインローラーコンベアが設置され、該熱処理輸送チェインローラーコンベアに少なくとも１台の熱間コイル保温熱処理装置が設置される；該熱処理輸送チェインローラーコンベアの両端には、鋼コイルを熱間コイル保温熱処理装置に積み降ろしできる吊り輸送装置がそれぞれ１台設置される；
前記熱間コイル保温熱処理装置には、
熱延鋼コイルに密閉インライン保温を行える保温カバーと；
基板と；
前記基板の上端面中央部に設置される鋼コイル固定台座と；が設置され、
前記鋼コイル固定台座は、対称に設置される２個の並列的な支持体を含む；２個の支持体の間の間隙の両側に、それぞれ側面密封装置が設置され、
前記鋼コイル固定台座の２個の支持体の間には、２個の支持体の間の間隙を閉じ込める底部密封装置が設けられることを特徴とする、熱間圧延インライン移動保温熱処理ライン。 A heat treatment transport chain roller conveyor is installed between the packing device in the latter stage of the hot rolled steel coil winder and the group of cold rolling mills, and at least one hot coil thermal insulation heat treatment device is installed on the heat treatment transport chain roller conveyor. Each end of the heat treatment conveying chain roller conveyor is equipped with a lifting conveying device that can load and unload the steel coil into the hot coil heat-retaining heat treatment device;
In the hot coil heat retaining heat treatment device,
a thermal insulation cover for hermetic in-line thermal insulation of the hot rolled steel coil;
a substrate;
a steel coil fixing pedestal installed at the center of the upper end surface of the substrate;
Said steel coil fixing pedestal includes two parallel supports installed symmetrically; on both sides of the gap between the two supports, a side sealing device is installed respectively;
A hot rolling in-line moving heat preservation heat treatment line, characterized in that, between the two supports of the steel coil fixing pedestal, a bottom sealing device is provided to close the gap between the two supports. 前記熱処理輸送チェインローラーコンベアの一側には、鋼コイル保温領域が設置され、該鋼コイル保温領域には、前記熱処理輸送チェインローラーコンベアと接続する少なくとも１つの保温輸送チェインローラーコンベアが設置されることを特徴とする、請求項５に記載の熱間圧延インライン移動保温熱処理ライン。 A steel coil heat-retaining area is installed on one side of the heat treatment conveying chain roller conveyor, and at least one heat-preserving conveying chain roller conveyor connected with the heat treatment conveying chain roller conveyor is installed in the steel coil heat-retaining area. The hot rolling in-line moving thermal insulation heat treatment line according to claim 5, characterized by: 前記熱処理輸送チェインローラーコンベア又は保温輸送チェインローラーコンベアには、少なくとも１つの熱処理ワークステーションが設置され、該熱処理ワークステーションには、熱間コイル保温熱処理装置における保温カバー内部を加熱する加熱システム及び／又はガス冷却を行う保護ガス冷却導入システムが設置されることを特徴とする、請求項６に記載の熱間圧延インライン移動保温熱処理ライン。 At least one heat treatment workstation is installed in the heat treatment transport chain roller conveyor or the heat insulation transport chain roller conveyor, and the heat treatment work station includes a heating system for heating the inside of the heat insulation cover of the hot coil heat insulation heat treatment device and/or The hot-rolling in-line moving heat-retaining heat treatment line according to claim 6, characterized in that a protective gas cooling introduction system for gas cooling is installed. 前記熱処理輸送チェインローラーコンベアの冷間圧延機群側の一端には、鋼コイルの情報を鋼コイルにプリントする情報エンコード・プリント装置が設置されることを特徴とする、請求項５に記載の熱間圧延インライン移動保温熱処理ライン。 The heat treatment according to claim 5, wherein an information encoding/printing device for printing information of the steel coil on the steel coil is installed at one end of the heat treatment transport chain roller conveyor on the side of the group of cold rolling mills. Inter-rolling in-line transfer thermal insulation heat treatment line. 前記熱間コイル保温熱処理装置は、
環状構造のものであって、前記鋼コイル固定台座の中部に水平に外挿されるトレーと；
下端が開口され、その内部キャビティ体積が鋼コイルより大きく、前記トレーをカバーして設けられる保温カバーと；
前記保温カバーに設置される電気加熱装置と；
前記保温カバーに設置される温度センサーと；
前記電気加熱装置、温度センサーと電気的に接続される情報収集制御モジュールと
を含むことを特徴とする、請求項５又は７に記載の熱間圧延インライン移動保温熱処理ライン。 The hot coil heat insulation heat treatment device includes:
a tray of annular structure, which is horizontally inserted over the middle of said steel coil fixing base;
a heat-retaining cover with an open bottom end, the internal cavity volume of which is larger than that of the steel coil, and provided to cover the tray;
an electric heating device installed on the heat insulating cover;
a temperature sensor installed on the heat insulating cover;
The hot rolling in-line moving thermal insulation heat treatment line according to claim 5 or 7, further comprising: an information collection control module electrically connected with the electric heating device and the temperature sensor. 前記熱間コイル保温熱処理装置には、ガス保護装置及びガスセンサーがさらに含まれ、
且つそれぞれ該情報収集制御モジュールと電気的に接続されることを特徴とする、請求項９に記載の熱間圧延インライン移動保温熱処理ライン。 The hot coil thermal insulation heat treatment device further includes a gas protection device and a gas sensor,
and respectively electrically connected with the information gathering control module. 前記情報収集制御モジュール内には、信号送信モジュールが設けられることを特徴とする、請求項９に記載の熱間圧延インライン移動保温熱処理ライン。 The hot rolling in-line moving thermal insulation heat treatment line according to claim 9, wherein a signal transmission module is installed in the information collection control module. 前記鋼コイル固定台座は、上端面が斜面である前記支持体を含むことを特徴とする、請求項５に記載の熱間圧延インライン移動保温熱処理ライン。 The hot rolling in-line moving thermal insulation heat treatment line according to claim 5, characterized in that the steel coil fixing pedestal includes the support body whose upper end surface is inclined. 前記底部密封装置は、
前記鋼コイル固定台座の２個の支持体の間に設置されて、鉛直に配置される支持板と；
前記支持板の頂面に水平に設置され、その大きさが前記２個の支持体の間の間隙に相応する密封板と
を含むことを特徴とする、請求項５に記載の熱間圧延インライン移動保温熱処理ライン。 The bottom sealing device comprises:
a vertically arranged support plate installed between the two supports of the steel coil fixing base;
a sealing plate installed horizontally on the top surface of the support plate, the size of which corresponds to the gap between the two supports; A mobile thermal insulation heat treatment line. 前記支持板の一側端面には電磁ブロックが設けられることを特徴とする、請求項１３に記載の熱間圧延インライン移動保温熱処理ライン。 14. The hot rolling in-line moving thermal heat treatment line for hot rolling according to claim 13, wherein an electromagnetic block is installed on one end surface of the support plate. 前記側面密封装置は、
前記鋼コイル固定台座の２個の支持体の間の間隙の両側にそれぞれ設置される２個のシーラーと；
駆動機構と
を含み、
駆動機構は、
前記２個のシーラーにそれぞれ水平に設置され、その一端がシーラーに接続される２個のラックと；
２個の軸受台座によって設置される駆動軸と；駆動軸の両端にそれぞれ設置され、ラックと噛み合うピニオンと
を含み、前記軸受台座は、固定板によって前記支持体の一側に設置されることを特徴とする、請求項５に記載の熱間圧延インライン移動保温熱処理ライン。 The side sealing device,
two sealers respectively installed on both sides of the gap between the two supports of the steel coil fixing base;
a drive mechanism and
The drive mechanism
two racks horizontally installed on the two sealers respectively, one end of which is connected to the sealers;
a drive shaft mounted by two bearing pedestals; pinions respectively mounted on both ends of the drive shaft and meshing with the rack, wherein the bearing pedestals are mounted on one side of the support by a fixing plate. The hot rolling in-line moving thermal insulation heat treatment line according to claim 5, characterized in that. 該固定板の一側には、前記ラックを通すための貫通孔が設けられ、貫通孔上方の固定板外側面には、ラックの頂面と当接するためのローラーが設置されることを特徴とする、請求項１５に記載の熱間圧延インライン移動保温熱処理ライン。 One side of the fixing plate is provided with a through hole for passing the rack, and a roller is provided on the outer side surface of the fixing plate above the through hole for contacting the top surface of the rack. The hot rolling in-line moving thermal insulation heat treatment line according to claim 15, wherein 前記密封板は複合層構造であり、中間が保温材マットからなり、両側が耐高温鋼板で被覆されることを特徴とする、請求項１３に記載の熱間圧延インライン移動保温熱処理ライン。 The hot-rolling in-line moving heat-retaining heat treatment line of claim 13, wherein the sealing plate has a composite layer structure, the middle is made of a heat-insulating material mat, and both sides are covered with high-temperature-resistant steel plates. 前記シーラーは複合層構造であり、中間が保温材マットからなり、両側が耐高温鋼板で被覆されることを特徴とする、請求項１５に記載の熱間圧延インライン移動保温熱処理ライン。 The hot-rolling in-line moving heat-retaining and heat-retaining line according to claim 15, characterized in that the sealer has a composite layer structure, the middle of which is made of a heat-retaining material mat, and both sides are covered with high-temperature-resistant steel plates. 前記保温カバーの側面下部には位置決めブッシュが設けられる；前記トレーには該位置決めブッシュと合わせる位置決めピンが設けられる；前記位置決めピンはテーパ状のものであることを特徴とする、請求項９に記載の熱間圧延インライン移動保温熱処理ライン。 10. The method according to claim 9, wherein a positioning bush is provided on a lower side of the heat insulating cover; a positioning pin is provided on the tray to match the positioning bush; and the positioning pin is tapered. hot rolling in-line moving thermal insulation heat treatment line. 前記保温カバーには、ガス孔及びガス排出バルブが設けられることを特徴とする、請求項９又は１９に記載の熱間圧延インライン移動保温熱処理ライン。 20. The hot rolling in-line mobile heat insulation heat treatment line according to claim 9 or 19, wherein the heat insulation cover is provided with a gas hole and a gas discharge valve. 前記保温カバーは複合構造であり、外保護層が高強度鋼板であり、中間層が保温材であり、内層は耐高温ステンレス板であることを特徴とする、請求項９又は１９又は２０に記載の熱間圧延インライン移動保温熱処理ライン。 21. The heat insulating cover of claim 9, 19 or 20, wherein the heat insulating cover has a composite structure, the outer protective layer is a high-strength steel plate, the middle layer is a heat insulating material, and the inner layer is a high temperature resistant stainless steel plate. hot rolling in-line moving thermal insulation heat treatment line. 前記保温カバーは複合構造であり、内部放射層、電気加熱ワイヤー層、中間メッシュ層、中間保温層、外保護層を含むことを特徴とする、請求項９又は１９又は２０に記載の熱間圧延インライン移動保温熱処理ライン。 The hot rolling according to claim 9, 19 or 20, characterized in that the heat insulating cover is a composite structure, comprising an inner radiation layer, an electric heating wire layer, an intermediate mesh layer, an intermediate heat insulating layer and an outer protective layer. In-line mobile thermal insulation heat treatment line. 前記電気加熱装置は電気加熱ワイヤーであり、前記温度センサーは熱電対式センサーであることを特徴とする、請求項９に記載の熱間圧延インライン移動保温熱処理ライン。 10. The hot rolling in-line moving thermal insulation heat treatment line according to claim 9, wherein the electric heating device is an electric heating wire, and the temperature sensor is a thermocouple type sensor.
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CN201810632238.4A CN110616307A (en) 2018-06-19 2018-06-19 Hot rolling strip steel heat treatment line
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