CN1018293B - 轧制扁钢产品的装置 - Google Patents

轧制扁钢产品的装置

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CN1018293B
CN1018293B CN89106109.6A CN89106109A CN1018293B CN 1018293 B CN1018293 B CN 1018293B CN 89106109 A CN89106109 A CN 89106109A CN 1018293 B CN1018293 B CN 1018293B
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way
roller
soaking pit
walking beam
continuous casting
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CN1039743A (zh
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博儒诺·迪·盖斯托
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Danieli and C Officine Meccaniche SpA
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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
    • C21D9/0006—Details, accessories not peculiar to any of the following furnaces
    • C21D9/0018—Details, accessories not peculiar to any of the following furnaces for charging, discharging or manipulation of charge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
    • B21B1/466—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a non-continuous process, i.e. the cast being cut before 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
    • C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
    • 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
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor
    • 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
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor
    • F27B9/2407—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor the conveyor being constituted by rollers (roller hearth furnace)
    • 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
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/02—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity of multiple-track type; of multiple-chamber type; Combinations of furnaces
    • F27B2009/026—Two or more conveyors, e.g. mounted successively
    • F27B2009/027—Two or more conveyors, e.g. mounted successively working in parallel
    • 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
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/201—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace walking beam furnace
    • F27B9/202—Conveyor mechanisms therefor
    • F27B9/207—Conveyor mechanisms therefor consisting of two or more conveyors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
    • F27M2001/00—Composition, conformation or state of the charge
    • F27M2001/15—Composition, conformation or state of the charge characterised by the form of the articles
    • F27M2001/1539—Metallic articles
    • F27M2001/1547—Elongated articles, e.g. beams, rails
    • F27M2001/1552—Billets, slabs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4998—Combined manufacture including applying or shaping of fluent material
    • Y10T29/49988—Metal casting
    • Y10T29/49991—Combined with rolling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5184—Casting and working

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Metal Rolling (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Laminated Bodies (AREA)
  • Bakery Products And Manufacturing Methods Therefor (AREA)
  • Tunnel Furnaces (AREA)
  • Wrappers (AREA)

Abstract

轧制扁钢产品装置(10)，至少由一条连续铸造线(11)成一行地供料，在均热炉(13)上游装有剪切机(12)，均热炉的出口邻近轧钢机的入口并与之相结合，均热炉内包括三套步进式炉底，其中第一步进式炉底(22)与均热炉的入口处辊道(16)相接并可连续地接收至少来自一条连续铸造线(11)的扁钢坯(18)，将它们排列在入口处辊道并放到中间的第二步进式炉底(23)上，第二步进式炉底(23)可将这些扁钢坯传送到第三步进式炉底(24)，而第三步进式炉底又将扁钢坯传送到出口处辊道(15)。

Description

本发明是轧制扁钢产品的装置。更确切地说，本发明是至少由一条连续铸造线连续供料并至少装备有一台扁钢产品均热炉的轧制扁钢产品装置。
在1967年9月出版的贸易杂志《钢铁工程师》第44卷第9期上，刊登一篇题为《连续制钢用加热炉》的文章。文章第119至126页描述了实行连续铸造的多种可能途径。在这些途径中，文章描述了这样一种装置，在这种装置中，大钢坯、小钢坯或扁钢坯等来自多个连续铸造线的产品列成一行供给加热炉。在炉中，这些产品一个接一个地排列起来，然后供给轧钢机。
该文章还在图9中描述了一种目前还没有的、配备有复杂的加热炉的理想装置。
在1984年10月29日出版的贸易杂志《钢铁》第104卷第22期上，刊登了一篇题为《热轧机的安装与直接轧制》的文章。文章第56至63页描述了装备有可加热扁钢坯边缘的设备的轧制装置。
在JP-A-58-6701出示的装置中，来自两条连续铸造线的产品可进入加热设备处理。位于两条铸造线和加热设备之间的传送台，可按要求把扁钢坯导入或不导入加热设备。
JP-A-57-12808公开了配备有多个连续铸造线的装置。来自这些铸造线的产品被导入传送台，传送台将产品排成一行并使之通过加热设备。
JP-A-57-121806和JP-A-54-153750示出的装置，可传送来自多个的连续铸造线的扁钢坯，并安装有可将扁钢坯排成单行向轧机供料的滚动导板。
JP-A-59-30401示出一种可对来自连续铸造线的产品进行再加热的装置。在这里，产品一个一个地被滚动导板接收并传送到保温炉、快冷室、慢 冷室和保温室，然后被传送到与轧机的供料线相连的另一个滚动导板。
US-A-3，648，359示出一种可轧制来自多个连续铸造线的产品的装置。在这里，产品在与加热炉入口相连的传送台上排成一行，加热炉的出口为轧机供料。
此外，轧制装置由多个连续铸造线供料并包括一个紧接铸造线下方的加热隧道，在这一隧道的尾端有一横向移动装置，它为与轧制线直接相连的均热炉供料。
这些系统的缺点是占有大量空间、需要安装许多机器和须进行大量维修工作。而且，这些具体设备还有导致大量浪费能量的缺点。
本发明的目的在于消除目前工艺存在的典型缺点。
这一目的可通过在主权利要求范围中所阐述的独特装置来达到，同时，从属权利要求则示出本发明的最佳形式。
根据本发明的第一个方面，包括一台均热炉，它紧接连接铸造线的下游，带有自己的连接每条铸造线的辊道，使用两条各自带有剪切机的连续铸造线是便利的，但不是必需的。
与均热炉入口一起，装备有可显示进入炉内的扁钢坯的长度的测量系统。这一测量系统可操纵位于均热炉入口处的剪切机进行剪切，使扁钢坯达到所需长度和（或）重量。
根据本发明的这一方面，在扁钢坯被剪切成规定的尺寸时，安装在均热炉内可变速的传动辊道加速移动，这一移动确保了被剪切的扁钢坯的尾部与下一个坯料头部的间距。
均热炉的长度一般根据把一个扁钢坯加工成规定尺寸而定。
均热炉内的辊道是自动和自冷的，并且能够左右摆动，以使扁钢坯在均温时得以停在辊道上，避免对工作辊道发生不利影响或使钢坯产生冷点等。
根据本发明适于在由一个或一个以上连续铸造线供料的轧机机组中使用这一情况，来自连续铸造线的扁钢坯首先被剪切，然后被导入均热炉。
该均热炉由包括活动条元件的三套步进式炉底组成。各有三套步进式炉底旨在不使来自连续铸造线并将进行轧制的扁钢坯发生故障和不适时的阻塞。
根据本发明，第一套篦条元件将连续来自入口处辊道的扁钢坯接过来并将它们放在第二套篦条元件上，以便迅速腾空辊道，使之能须利地接收依次而来的扁钢坯。
根据本发明的具体设备的提示形式，第二套活动篦条元件可不受第一套和第二套篦条元件影响而独立运动，并根据在其宽度方面能够存储相当于钢水包内钢水容积的一些扁钢坯来确定其宽度尺寸。如果位于下游的滚轧机发生某些困难时，这可使之得以容纳连续铸造装置的全部产品。
在正常工作期间，第二套活动篦条元件支持每一扁钢坯的时间为扁钢坯达到轧制温度并均热所需时间。
根据本发明的具体设备的提示形式，第二套篦条元件要同向炉内供给扁钢坯的方向形成一个角度，以便在扁钢坯运动期间不断变换篦条元件和扁钢坯之间的接触面。
第三套篦条元件将达温的扁钢坯传送到出口处辊道。
根据本发明，出口处辊道可进行往复运动，以防止扁钢坯的同一范围和辊道之间长时间接触，避免辊道因过载而弯曲。
出口处辊道还与均热炉上游的备用出口相接。
根据本发明的具体设备的另一种形式，这种结构与两个或两个以上的连续铸造线同时使用。在这种情况下，设置了第一个扁钢坯均热炉，这一均热炉的出口供料给第二个均热炉，第二个均热炉保持扁钢坯的温度并向轧钢机供料。
本发明的其他目的与优点，可从下面对一些具体设备的描述中看得更加清楚。这些具体设备作为非限制性实施例举出并附以图表。其中：
图1表示根据本发明实施例设备的第一种和第二种形式而定的装置。
图2表示根据本发明实施例设备的第三种形式而定的装置。
在图1中，轧制装置10由连续铸造线11供料，连续铸造线由首批剪切机12和装在同一行的均热炉13内的辊道16组成。
实例表示，横向移动和卸料系统位于首批剪切机12和均热炉13之间，包括水平横向移动设备21，冷却横向移动设备20和堆积机19。
这一横向移动系统的用途在于，如果连线铸造 线11的下游方发生某种堵塞，而铸造线11需继续进行铸造，首批剪切机12把扁钢坯18切成所需长度，而已剪切的扁钢坯将沿着这一水平卸料系统被卸下。
当进入均热炉13的扁钢坯达到所需长度，它被剪切机12剪切，而被剪切的扁钢坯向前传送并存储在均热炉13内。
辊道16的辊轮被驱动并自冷。
辊道16的各种各样的辊轮可进行交替地向右和向左转动的摆动运动。这使存储在均热炉13辊道16上的扁钢坯18在整个期间都发生往复运动，以使其各个部分的温度完全达到均衡。
观察、备用门117可设在辊道16的下游方。
第二批剪切机112设在均热炉13下游方末端的出口。在第二批剪切机112的下游方，在第二批剪切机和轧钢机10之间可包括寻加热器14，以便扁钢坯18到达轧钢机之前为其边缘加热。
图1所示装置包括入口处辊道16，此辊道接收来自连续铸造线11的扁钢坯18;这些扁钢坯18由首批剪切机12剪切成所需尺寸并在均热炉13内由自动的入口处辊道16加速。
三套独立的步进式炉底22-23-24依次地装在均热炉13中，包括可交替静止和运动的几套篦条元件。
属于第一步进式炉底22的篦条元件和任务是，从入口处辊道16接收扁钢坯18并将这些钢放在第二步进式炉底23上。
根据本发明，第二步进式炉底23宽到足以承受许多钢坯，其重量相当于钢水包内钢水的重量。
这样，便形成一个停留区，即使轧机10或装置的其他组成部分发生困难，扁钢坯也可存储在这个停留区。
根据本发明具体设备的提示形式，属于第二步进式炉底23的篦元件以预调的角度向均热炉13内供给扁钢坯18的方向倾斜。
这可使篦条元件和扁钢坯18之间的接触面在供料活动期间不断变动。
第二步进式炉底23供料给第三步进式炉底24，后者的任务是将扁钢坯18向出口处辊道15传送，该辊道按箭头A所示方向向轧钢机10供料。
出口处辊道15装备有备用门17，它位于均热炉13的上游方未端。
图2所示实施例设备与图1所示具体设备相类似。在这里，给轧钢机10供料的保温、加热炉113是由均温炉13供料的，均热炉的入口从两条连续铸造线11接收扁钢坯18-18′。
均热炉13包括中央辊道15，中央辊道15在其发展过程中变为辊道116，辊道116为保温、加热炉133供料。
在中央辊道15和两个水平的入口处辊道16之间设有横向移动元件25。
均热炉13的任务是将扁钢坯18-18′相对于保温炉113列成一行，均热炉13下游方设有备用门17。
保温、加热炉113的步进式炉底元件22-23-24与图1中所示步进式炉底元件22-23-24相类似。
保温、加热炉113还包括上游的备用门217和下游方的观察、备用门117。
均热炉13由两套横向移动元件组成，这两套横向移动元件将扁钢坯18从水平的入口处辊道16横移至中央辊道15。

Claims (10)

1、轧制扁钢产品装置(10)，至少由一条连续铸造线(11)成一行地供料，该连续铸造线生产扁平钢坯并在均热炉(13)上游方装有剪切机(12)，均热炉(13)的出口紧邻轧钢机(10)的入口并与之相结合，所述装置(10)的特征在于：均热炉(13)内包括与连续铸造线(11)在同一行轴线上的入口处辊道(16)，三套步进式炉底(22-23-24)和平行于入口处辊道(16)并与轧钢线在同一轴线上的出口处辊道(15)，三套步进式炉底(22-23-24)固定在入口处辊道(16)与出口处辊道之间，第一步进步式炉底(22)适于从入口处辊道直接接收扁钢坯，第三步进式炉底(24)适于将扁钢坯直接传送到出口处辊道(15)。
2、根据权利要求1所述的装置（10），其特征是：保温、加热炉（113）位于均热炉（13）的下游方，并与此直接相关，均热炉（13）的出品处辊道（15）在其发展过程中成为给保温、加热炉（113）供料的辊道（116）。保温、加热炉（113）由内部传送设备（22-23-24）构成，这些设备与均热炉（13）的内部传送设备相类似。
3、根据权利要求1或2所述的装置（10），其特征是：步进式炉底（22-23-24）包括相互平行排列的篦条元件，篦条元件交替静止和运动。
4、根据权利要求1所述的装置（10），其特征是：属于第二步进式炉底（23）的篦条元件以预测角度置于向均热炉（13）供给扁钢坯（18）的方向。
5、根据权利要求1或4所述的装置（10），其特征是：出口处辊道（15）与均热炉（13）的备用门（17）相接。
6、根据权利要求1所述的装置（10），其特征是：第二步进式炉底（23）要足够宽，以使其能承受许多扁钢坯（18），这些扁钢坯（18）的重量相当于供给至少一条连续铸造线（11）的钢水包中的钢水总量。
7、根据权利要求1所述的装置（10），其特征是：均热断（13）拥有至少有两个入口，这两个入口至少与两条连续铸造线（11）相接。
8、根据权利要求7所述的装置（10），其特征是：均热炉（13）装有将扁钢坯（18）传送到出口处辊道（15）的设备（25），该辊道（15）与保温、加热炉（113）的入口处辊道（116）相接。
9、根据权利要求8所述的装置（10），其特征是：传送设备（25）包括可交替静止和运动的多个篦条元件。
10、根据权利要求2所述的装置（10），其特征是：保温、加热炉（113）设有备用门（217）。
CN89106109.6A 1988-07-26 1989-07-25 轧制扁钢产品的装置 Expired CN1018293B (zh)

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EP0353487A1 (en) 1990-02-07
ATE112327T1 (de) 1994-10-15
IT8883457A0 (it) 1988-07-26
DE68918531T2 (de) 1995-01-26
IT1225544B (it) 1990-11-22
ES2061810T3 (es) 1994-12-16
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US5117545A (en) 1992-06-02
DE68918531D1 (de) 1994-11-03

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