WO2011023084A1 - 钢包液压提升装置 - Google Patents

钢包液压提升装置 Download PDF

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Publication number
WO2011023084A1
WO2011023084A1 PCT/CN2010/076230 CN2010076230W WO2011023084A1 WO 2011023084 A1 WO2011023084 A1 WO 2011023084A1 CN 2010076230 W CN2010076230 W CN 2010076230W WO 2011023084 A1 WO2011023084 A1 WO 2011023084A1
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WIPO (PCT)
Prior art keywords
hook
lifting
frame
ladle
hinged
Prior art date
Application number
PCT/CN2010/076230
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English (en)
French (fr)
Inventor
刘安
杨轶
许晓雷
宋涛
金再峰
韩鹏
Original Assignee
宝钢工程技术集团有限公司
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Publication of WO2011023084A1 publication Critical patent/WO2011023084A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C17/00—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports
    • B66C17/06—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports specially adapted for particular purposes, e.g. in foundries, forges; combined with auxiliary apparatus serving particular purposes
    • B66C17/10—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports specially adapted for particular purposes, e.g. in foundries, forges; combined with auxiliary apparatus serving particular purposes for transporting ladles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
    • B66C1/34—Crane hooks
    • 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
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4686—Vehicles for supporting and transporting a converter vessel

Definitions

  • the utility model relates to a metallurgical special machine, in particular to a hydraulic lifting device for a ladle in a vacuum refining device adopting a vacuum circulation degassing method (RH).
  • RH vacuum circulation degassing method
  • the dip tube In the RH vacuum refining unit, when the molten steel refining process is performed, the dip tube needs to be inserted into the molten steel contained in the ladle. After the treatment, the dip tube is separated from the molten steel and the ladle, and a relative movement between the ladle and the dip tube is required.
  • most RH vacuum refining units use ladle jacking devices for jacking and lowering of ladle. During processing, the ladle on the ladle truck is lifted up by the hydraulic jacking device installed under the processing position and the steel ladle is lifted up. After the treatment, the hydraulic jacking device is lowered and the ladle is lowered onto the ladle trolley.
  • the existing ladle lifting equipment has the disadvantage that a deep pit for installing the ladle lifting equipment must be dug under each treatment position; when the RH vacuum refining process is performed, the ladle trolley must stay at the processing position, thus restricting the refining Steel process layout and ladle turnover. Since the ladle lifting equipment is installed in a deep pit below the processing position, the equipment may be damaged in the event of a steel leakage accident.
  • the hydraulic jacking device of the ladle has a complicated structure, high cost, difficulty in maintenance and maintenance, and has potential safety hazards. Summary of the invention
  • the task of the utility model is to provide a hydraulic lifting device for a ladle, which solves the problems of complicated structure, high cost, difficult maintenance and safety hazard of the existing ladle lifting equipment.
  • a ladle hydraulic lifting device comprising a mounting bracket, a lifting frame, a hook and a hook device, a lifting hydraulic cylinder and a guiding frame;
  • the number of the mounting supports is four, which are respectively installed on the steel structure of the factory building;
  • the lifting frame is composed of a frame body and a guiding wheel, and the hooks are hinged at the center of the beam on both sides of the frame body, and the guiding wheels are installed on both sides of the frame beam;
  • the hook in the hook and the hook device is rotatably connected to the beam of the lifting frame through the pin shaft, wherein the hook device is rotatably hinged with the hook to realize the combination and disengagement of the hook and the ladle trunnion;
  • the number of the lifting hydraulic cylinders is four, one end of each lifting hydraulic cylinder is hinged with a connecting shaft pin on the mounting bracket, and the other end of each lifting hydraulic cylinder is hinged with one end of the beam of the lifting frame;
  • the guide frame is mounted on a fixed steel structure, and the guide wheels on the lifting frame move up and down along the guide frame.
  • the utility model takes the following further technical measures:
  • the mounting bracket includes a bearing base and a connecting shaft pin.
  • the number of the supporting seats is four, and each of the supporting seats is provided with a connecting shaft pin hinged to one end of the lifting hydraulic cylinder.
  • the hooks in the hook and hook device are superposed by a plurality of steel plates to form a hook.
  • the hook device in the hook and hook device is an automatic hook mechanism that is mounted on the beam of the lifting frame.
  • the ladle hydraulic lifting device also includes a plurality of thermal insulation devices installed in the hot steel toasting portion of the ladle.
  • the heat insulation protection device is composed of a steel plate and a heat insulating material.
  • the ladle hydraulic lifting device of the utility model has the advantages of simple structure, safe and reliable operation and low cost.
  • the movement of the ladle is stable when the lifting is performed, and the speed adjustment is convenient, and the steel bag can be urgently lowered when the power failure occurs.
  • the ladle hydraulic lifting device of the utility model can reduce the safety hazard of the RH vacuum refining area, and save the RH vacuum refining process time; improve the process layout flexibility of the RH vacuum refining device and the steel making workshop; avoid constructing deep pits, Reduce earthwork; achieve a smooth rise and fall of the ladle during RH vacuum refining.
  • FIG. 1 is a schematic structural view of a ladle hydraulic lifting device of the present invention.
  • Figure 2 is a plan view of Figure 1.
  • FIG 3 is a schematic view showing the structure of the mounting bracket in the apparatus of Figure 1.
  • 1 is the steel structure of the factory
  • 2 is the lifting frame
  • 201 is the frame body
  • 202 is the guiding wheel
  • 3 is the hook and hook device
  • 301 is the board hook
  • 302 is the automatic hooking mechanism
  • 4 is the mounting bracket
  • 5 is the lifting hydraulic cylinder
  • 6 is the guiding frame
  • 7 is the heat insulation protection device.
  • the present invention is a ladle hydraulic lifting device which is mainly composed of a mounting bracket 4, a lifting frame 2, a hook and hook device 3, a lifting hydraulic cylinder 5 and a guide frame 6.
  • the number of mounting brackets 4 is four and is mounted on the steel structure 1 of the plant.
  • the lifting frame 2 is composed of a frame body 201 and a guide wheel 202.
  • the hooks are hinged at the center of the beam on both sides of the frame body 201.
  • the guide wheels 202 are mounted on both sides of the frame body beam, and the guide wheels 202 cooperate with the guide frame 6.
  • the hook in the hook and hook device 3 is connected to the beam of the lifting frame 2 through the pin shaft and can be rotated; the hook device is hinged with the hook for rotating the hook to realize the combination and removal of the hook and the ladle trunnion open.
  • the hooks in the hook and hook device 3 are superposed by a plurality of steel sheets to form a hook 301.
  • the hooking device in the hook and hook device 3 is an automatic hooking mechanism 302 which is mounted on the beam of the frame body 201.
  • the number of lift cylinders 5 is four. One end of each lift cylinder 5 is hinged to a connecting pin 402 on the mounting bracket 4, and the other end of each lift cylinder 5 is hinged to one end of the beam of the lifting frame 2.
  • the guide frame 6 is mounted on a fixed steel structure, and the guide wheels 202 on the lifting frame 2 can be moved up and down along the guide frame 6.
  • the mounting bracket 4 is composed of a support base 401 and a connecting shaft pin 402.
  • the number of support seats 401 is four, which are respectively mounted on the steel structure 1 of the factory building.
  • a support pin 402 is attached to each of the support seats 401, and the connecting pin 402 is hinged to one end of the lift cylinder 5.
  • the ladle hydraulic lifting device of the utility model is also equipped with several heat insulation protection devices 7, and the heat insulation protection device 7 is composed of a steel plate and a heat insulating material.
  • a number of thermal protection devices 7 are installed in areas where the hydraulic lifting device is susceptible to hot molten steel in the ladle to provide protection.
  • the working process of the ladle hydraulic lifting device of the utility model is as follows:
  • the ladle that is ready to process the molten steel is transported by the ladle to the processing position.
  • the hydraulic lifting device disposed above the processing stowage cart uses a hooking device to connect the hook on the hydraulic lifting device to the ladle trunnion.
  • the lifting hydraulic cylinder mounted on the frame of the hydraulic lifting device moves and the hydraulic lifting device moves upwards. At this time, the ladle prepared for processing the molten steel is lifted upward by the hook on the hydraulic lifting device.
  • the ladle is lifted upwards with the hydraulic lifting device, and is continuously approaching the dip tube on the vacuum tank of the RH vacuum refining unit; after reaching the designated position (controlled by the stroke switch), the lifting cylinder stops moving. At this time, RH The dip tube on the vacuum tank of the vacuum refining unit enters a certain depth of molten steel, and then begins RH vacuum refining treatment.
  • the relative position of the ladle and the dip tube can be adjusted by increasing the rise and fall of the hydraulic cylinder according to the fluctuation of the molten steel level in the ladle.
  • the hydraulic cylinder is lifted, and the ladle falls with the hydraulic lifting device until the ladle is placed on the ladle car, and the lifting hydraulic cylinder stops moving.
  • the hooking device disengages the hook on the hydraulic lifting device from the ladle trunnion, and the ladle is transported through the treated molten steel away from the processing station. This completes an RH vacuum refining cycle.
  • the ladle hydraulic lifting device of the utility model replaces the original hydraulic lifting device, and has the advantages of simple structure, practicality, safe and reliable operation, low cost and the like.
  • the smooth movement of the ladle lifting can be realized, the speed adjustment is convenient, and the emergency down operation of the ladle can be realized in the event of a power failure.
  • the ladle car By adopting the ladle lifting method and the hydraulic lifting device of the utility model, the ladle car can be moved during the RH vacuum refining treatment of the molten steel, and the complete out-line mode of the converter tapping rail can be realized, and the ladle trolley can be omitted for waiting for the lifting time, saving the converter out
  • the large-scale driving rate of steel crosses increases the production efficiency of steel mills.

Description

钢包液压提升装置 技术领域
本实用新型涉及冶金专用机械， 特别涉及一种采用真空循环脱气法 （RH) 的 真空精炼装置中的用于钢包的液压提升装置。 背景技术
RH真空精炼装置在进行钢水精炼处理时， 浸渍管需要插入盛在钢包中的钢 液， 处理结束后， 浸渍管要脱离开钢液和钢包， 钢包和浸渍管间需要有一定距离 的相对运动。 目前， RH真空精炼装置大多数采用钢包顶升装置进行钢包的顶升和 下降。 在处理时， 钢包车上的钢包， 由安装在处理位下方的液压顶升装置将钢包 向上顶起后进行处理； 处理结束后， 液压顶升装置下降， 将钢包降落至钢包台车 上。
现有的钢包顶升设备， 其缺点是必须在每个处理位下挖一个安装钢包顶升设 备的深坑； 在进行 RH真空精炼处理时， 钢包台车必须停留在处理位置， 因此制约 了炼钢工艺布置和钢包周转。 由于钢包顶升设备安装在处理位下方的深坑内， 当 出现漏钢事故时可能会损坏设备。 这种钢包的液压顶升装置结构复杂， 造价高， 维修、 保养困难， 存在着安全隐患。 发明内容
本实用新型的任务是提供一种用于钢包的液压提升装置， 它解决了现有钢包 顶升设备结构复杂、 造价高、 维修保养困难、 存在安全隐患的问题。
本实用新型的技术解决方案如下：
一种钢包液压提升装置， 它包括安装支座、 提升框架、 吊钩及挂钩装置、 提 升液压缸以及导向架；
所述安装支座的数量为四个， 分别安装在厂房钢结构上；
所述提升框架由框架体和导向轮组成， 在框架体两侧的横梁中央铰接吊钩， 导向轮安装在框架横梁的两侧；
所述吊钩及挂钩装置中的吊钩通过销轴与提升框架的横梁实现可转动的连 接， 其中的挂钩装置可转动地与吊钩铰接以实现吊钩与钢包耳轴的结合和脱开； 所述提升液压缸的数量为四个， 每个提升液压缸的一端与安装支座上的连接 轴销铰接， 每个提升液压缸的另一端与提升框架的横梁一端铰接；
所述导向架安装在固定的钢结构上， 提升框架上的导向轮沿导向架上下运 动。
本实用新型采取如下进一步的技术措施：
所述安装支座包括支承座和连接轴销， 支承座的数量为四个， 每个支承座上 装有与提升液压缸一端铰接的连接轴销。
所述吊钩及挂钩装置中的吊钩由多层钢板叠加而制成板钩。
所述吊钩及挂钩装置中的挂钩装置为自动挂钩机构， 安装在提升框架的横梁 上。
所述钢包液压提升装置还包括数个安装在易受钢包中炽热钢水烘烤部位的隔 热防护装置。
所述隔热防护装置由钢板和隔热材料组成。
本实用新型的钢包液压提升装置具有设备结构简单， 运行安全可靠， 造价低 等优点。 采用本实用新型的液压提升装置， 钢包升降时运动平稳， 速度调整方 便， 停电事故时也能实现钢包紧急下降。
采用本实用新型的钢包液压提升装置， 可减少 RH真空精炼区域的安全隐患， 同时节约 RH真空精炼工序时间； 提高 RH真空精炼装置和炼钢车间的工艺布置灵 活性； 避免建造较深的坑， 减少土方作业； 实现在 RH真空精炼处理时钢包的平稳 提升和下降。 附图概述
本发明的具体特征、 性能由以下的实施例及其附图进一步给出。
图 1是本实用新型的一种钢包液压提升装置的结构示意图。
图 2是按图 1所示的俯视图。
图 3是图 1装置中安装支座的结构示意图。
图中标记：
1为厂房钢结构， 2为提升框架， 201为框架体， 202为导向轮， 3为吊钩及挂 钩装置， 301为板钩， 302为自动挂钩机构， 4为安装支座， 401为支承座， 402为连 接轴销， 5为提升液压缸， 6为导向架， 7为隔热防护装置。 本发明的最佳实施方式
下面结合附图通过一个较佳实施例对本实用新型作进一步的说明。
参看图 1至图 3， 本实用新型是一种钢包液压提升装置， 它主要由安装支座 4、 提升框架 2、 吊钩及挂钩装置 3、 提升液压缸 5以及导向架 6组成。
安装支座 4的数量为四个， 分别安装在厂房钢结构 1上。
提升框架 2由框架体 201和导向轮 202组成， 在框架体 201两侧的横梁中央铰接 吊钩， 导向轮 202安装在框架体横梁的两侧， 导向轮 202与导向架 6相配合。
吊钩及挂钩装置 3中的吊钩通过销轴与提升框架 2的横梁连接， 且可以转动； 挂钩装置与吊钩铰接， 用于转动吊钩， 以实现吊钩与钢包耳轴的结合和脱开。 吊 钩及挂钩装置 3中的吊钩由多层钢板叠加而制成板钩 301。 吊钩及挂钩装置 3中的挂 钩装置为自动挂钩机构 302， 安装在框架体 201的横梁上。
提升液压缸 5的数量为四个。 每个提升液压缸 5的一端与安装支座 4上的连接 轴销 402铰接， 每个提升液压缸 5的另一端与提升框架 2的横梁一端铰接。
导向架 6安装在固定的钢结构上， 提升框架 2上的导向轮 202可以沿着导向架 6 上下运动。
如图 3中所示， 安装支座 4由支承座 401和连接轴销 402组成。 支承座 401的数 量为四个， 分别安装在厂房钢结构 1上。 每个支承座 401上安装一个连接轴销 402， 连接轴销 402与提升液压缸 5的一端铰接。
本实用新型的钢包液压提升装置还装有数个隔热防护装置 7， 隔热防护装置 7 由钢板和隔热材料组成。 数个隔热防护装置 7安装在液压提升装置易受钢包中炽热 钢水烘烤的部位， 可起到保护作用。
本实用新型的钢包液压提升装置的工作过程如下：
1、 盛有准备进行处理钢水的钢包由钢包车载运到处理位， 布置在处理位钢 包车上方的液压提升装置使用挂钩装置， 将液压提升装置上的吊钩与钢包耳轴连 接。
2、 装在液压提升装置框架上的提升液压缸动作， 液压提升装置向上运动， 此时， 盛有准备进行处理钢水的钢包由液压提升装置上的吊钩向上提升。
3、 钢包随液压提升装置向上提升， 不断接近 RH真空精炼装置真空槽上的浸 渍管； 到达指定位置后 （通过行程开关控制） ， 提升液压缸停止运动。 此时， RH 真空精炼装置真空槽上的浸渍管进入钢水一定深度， 然后开始 RH真空精炼处理。
4、 在 RH真空精炼处理过程中， 可以根据钢包中钢水液面的波动， 通过提升 液压缸的上升和下降动作来调整钢包与浸渍管的相对位置。
5、 经过一段时间， RH真空精炼处理完毕后， 提升液压缸下落， 钢包随液压 提升装置下落， 直至将钢包放置在钢包车上， 提升液压缸停止运动。 挂钩装置将 液压提升装置上的吊钩与钢包耳轴脱开， 此时钢包车载运经过处理后的钢水离开 处理工位。 至此完成一个 RH真空精炼周期。
综上所述， 本实用新型的钢包液压提升装置代替了原有的液压顶升装置， 具 有结构简单、 实用、 运行安全可靠、 造价低等优点。 采用本实用新型的钢包液压 提升装置， 可以实现钢包升降的平稳运动， 速度调整方便， 遇停电事故时也能实 现钢包紧急下降操作。
采用本实用新型的钢包提升方式和液压提升装置， 在钢水进行 RH真空精炼处 理时钢包车可以移动， 可以实现转炉出钢轨道完全在线模式， 可省略钢包台车进 出等待吊运时间， 节省转炉出钢跨的大型行车作业率， 提高炼钢厂的生产效率。 另外， 可不必建造深坑， 减少土方作业量。 处理位下方没有设备， 便于事故处 理， 减少安全隐患。
当然， 本技术领域内的一般技术人员应当认识到， 上述实施例仅是用来说明 本实用新型， 而并非用作对本实用新型的限定， 只要在本实用新型的实质精神范 围内， 对上述实施例的变换、 变型都将落在本实用新型权利要求的范围内。

Claims

权利要求
1 . 一种钢包液压提升装置， 其特征在于， 它包括安装支座、 提升框架、 吊 钩及挂钩装置、 提升液压缸以及导向架；
所述安装支座的数量为四个， 分别安装在厂房钢结构上；
所述提升框架由框架体和导向轮组成， 在框架体两侧的横梁中央铰接吊钩， 导向轮安装在框架横梁的两侧；
所述吊钩及挂钩装置中的吊钩通过销轴与提升框架的横梁实现可转动的连 接， 其中的挂钩装置可转动地与吊钩铰接以实现吊钩与钢包耳轴的结合和脱开； 所述提升液压缸的数量为四个， 每个提升液压缸的一端与安装支座上的连接 轴销铰接， 每个提升液压缸的另一端与提升框架的横梁一端铰接；
所述导向架安装在固定的钢结构上， 提升框架上的导向轮沿导向架上下运 动。
2. 根据权利要求 1所述的钢包液压提升装置， 其特征在于， 所述安装支座包 括支承座和连接轴销， 支承座的数量为四个， 每个支承座上装有与提升液压缸一 端铰接的连接轴销。
3. 根据权利要求 1所述的钢包液压提升装置， 其特征在于， 所述吊钩及挂钩 装置中的吊钩由多层钢板叠加而制成板钩。
4. 根据权利要求 1所述的钢包液压提升装置， 其特征在于， 所述吊钩及挂钩 装置中的挂钩装置为自动挂钩机构， 安装在提升框架的横梁上。
5. 根据权利要求 1所述的钢包液压提升装置， 其特征在于， 所述钢包液压提 升装置还包括数个安装在易受钢包中炽热钢水烘烤部位的隔热防护装置。
6. 根据权利要求 5所述的钢包液压提升装置， 其特征在于， 所述隔热防护装 置由钢板和隔热材料组成。
PCT/CN2010/076230 2009-08-26 2010-08-23 钢包液压提升装置 WO2011023084A1 (zh)

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