WO2022012300A1 - 捞渣机自动定位系统 - Google Patents

捞渣机自动定位系统 Download PDF

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Publication number
WO2022012300A1
WO2022012300A1 PCT/CN2021/102297 CN2021102297W WO2022012300A1 WO 2022012300 A1 WO2022012300 A1 WO 2022012300A1 CN 2021102297 W CN2021102297 W CN 2021102297W WO 2022012300 A1 WO2022012300 A1 WO 2022012300A1
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WIPO (PCT)
Prior art keywords
positioning system
level gauge
limit sensor
slag
automatic positioning
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PCT/CN2021/102297
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English (en)
French (fr)
Inventor
盛富春
盛镝
宋文涛
邹立君
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烟台盛利达工程技术有限公司
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Publication of WO2022012300A1 publication Critical patent/WO2022012300A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves

Definitions

  • the utility model relates to a positioning system for slag fishing.
  • the manual calibration method is mainly used to determine the slag fishing height, and then the calibrated target position is written into the control system for operation.
  • the disadvantage of this method is that the calibration operation is complex, time-consuming, low in production efficiency, and the on-site environment is poor, resulting in potential safety hazards.
  • the utility model proposes an automatic positioning system for a slag fishing machine, the purpose of which is to realize automatic calibration of the slag fishing height, improve production efficiency and reduce potential safety hazards.
  • An automatic positioning system for a slag scavenger comprises a radar level gauge arranged above an iron and steel water drum, and a shielding tube vertically arranged with an upper end connected to a transmitting end of the radar level gauge, wherein the lower end of the shielding tube is installed with a Downward facing flare unit.
  • a cooling pipe for conveying compressed gas is also included, and the cooling pipe communicates with the upper part of the shielding pipe.
  • the shielding pipe passes through the platform and is fixed on the platform through a flange.
  • this system also includes a control unit, a limit sensor and a walking cart;
  • the control unit is used to receive the data of the radar level gauge and the signal of the limit sensor;
  • the steel water bag is placed on a traveling vehicle, and a sensing block is arranged on the traveling vehicle, and the limit sensor is used for sensing the sensing block.
  • the limit sensor includes a first limit sensor and a second limit sensor.
  • the utility model has the following beneficial effects: (1)
  • the radar liquid level gauge is used to detect the liquid level height, so as to realize automatic calibration and automatic slag removal by unmanned operation, improve the production efficiency and reduce the safety of manual operation.
  • the radar signal reaches the liquid level through the shielding tube and the bell mouth device, which can reduce signal interference and improve the accuracy and reliability of detection; (3) Send compressed gas to the shielding tube through the cooling tube to reduce the surrounding temperature and adapt to High temperature environment, prolong the service life.
  • Fig. 1 is a schematic diagram of the utility model applied to a slag scraper.
  • FIG. 2 is a partial schematic view of part A in FIG. 1 .
  • FIG. 3 is a partial schematic diagram of part B in FIG. 1 .
  • an automatic positioning system for a slag scavenger includes a radar level gauge 3 arranged above the steel water ladle 5, and a metal level gauge 3 vertically arranged and connected to the transmitter end of the radar level gauge 3 at its upper end.
  • a shielding tube 10 is made, and the lower end of the shielding tube 10 is installed with a metal bell mouth device 11 facing downward.
  • the system also includes a platform 4 disposed above the steel water ladle 5, the shielding pipe 10 passes through the platform 4, and is connected to the flange 9 by welding, and the flange 9 is fixed on the platform 4 by screws.
  • the system also includes a cooling pipe 12 for conveying compressed gas (such as nitrogen), the cooling pipe 12 is communicated with the upper part of the shielding pipe 10, and cold air is blown down along the shielding pipe 10 to prevent the high temperature gas of the steel water ladle 5 Approach the radar level gauge 3.
  • compressed gas such as nitrogen
  • the system also includes a control unit, a limit sensor and a walking cart 6 .
  • the radar level gauge 3 is connected with the control unit through a converter, and the converter is used to convert the RS485 signal sent by the radar level gauge 3 into a CAN signal that can be recognized by the control unit.
  • the steel water ladle 5 is placed on the traveling cart 6, and the traveling cart 6 is provided with a sensing block 6-1.
  • the limit sensor includes a first limit sensor 7 and a second limit sensor 8.
  • a position sensor is used to sense the sensing block 6-1.
  • the control unit also receives the signal of the limit sensor.
  • the radar level gauge 3 is controlled to perform detection and recording, and when the second limit sensor 8 is triggered, the detection and recording are stopped.
  • the slag fishing machine is provided with a lifting cylinder 2 for controlling the lifting and falling of the slag fishing arm.
  • the slag fishing arm is rotatably connected with the frame, one end of the lifting cylinder 2 is rotatably connected with the slag fishing arm, and the other end is rotatably connected with the frame.
  • the slag rake 1 is installed at the end of the slag arm.
  • a magnetic displacement sensor is installed at the lift cylinder 2 to detect the length of the lift cylinder 2 .
  • the control unit is connected with the magneto-induced displacement sensor, and is also used to control the action of the landing cylinder 2 through the hydraulic station.
  • the working method is:
  • H the total length of the magnetic displacement sensor. This value is recorded in the program. Whenever the value of the magnetic displacement sensor is this value, it means that the target position has been reached, and the next action should be taken, so as to realize the automatic slag removal by the program.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Abstract

一种捞渣机自动定位系统，包括设置在钢铁水包(5)上方的雷达液位计(3)，还包括竖直设置且上端与雷达液位计(3)的发射端相接的屏蔽管(10)，所述屏蔽管(10)下端安装有朝向下方的喇叭口装置(11)。雷达液位计(3)检测液位高度，从而实现自动标定和无人操作自动捞渣，提高了生产效率，减少了人工操作的安全隐患。

Description

捞渣机自动定位系统 技术领域
本实用新型涉及一种用于捞渣的定位系统。
 背景技术
目前，捞渣机工作时，主要依靠手动标定方式确定捞渣高度，然后将标定好的目标位置写入控制系统，进行操作。该方式的缺陷在于：标定操作复杂，耗时长，生产效率低下，且现场环境差，存在安全隐患。
 技术问题
本实用新型提出了一种捞渣机自动定位系统，其目的是：实现捞渣高度的自动标定，提高生产效率，减少安全隐患。
 技术解决方案
本实用新型技术方案如下：
一种捞渣机自动定位系统，包括设置在钢铁水包上方的雷达液位计，还包括竖直设置且上端与雷达液位计的发射端相接的屏蔽管，所述屏蔽管下端安装有朝向下方的喇叭口装置。
作为本系统的进一步改进：还包括用于输送压缩气体的冷却管，所述冷却管与所述屏蔽管的上部相连通。
作为本系统的进一步改进：还包括设置在钢铁水包上方的平台，所述屏蔽管穿过该平台并通过法兰盘固定在平台上。
作为本系统的进一步改进：还包括控制单元、限位传感器和行走车；
所述控制单元用于接收所述雷达液位计的数据和限位传感器的信号；
所述钢铁水包放置在行走车上，所述行走车上设置有感应块，所述限位传感器用于感应所述感应块。
作为本系统的进一步改进：所述限位传感器包括第一限位传感器和第二限位传感器。
 有益效果
相对于现有技术，本实用新型具有以下有益效果：（1）使用雷达液位计检测液位高度，从而实现自动标定和无人操作自动捞渣，提高了生产效率，减少了人工操作的安全隐患；（2）雷达信号通过屏蔽管和喇叭口装置到达液面，可以减少信号干扰，提高检测的准确性及可靠性；（3）通过冷却管向屏蔽管输送压缩气体，降低周围温度，适应高温环境，延长使用寿命。
 附图说明
图1为本实用新型应用在捞渣机上的示意图。
图2为图1中A部分的局部示意图。
图3为图1中B部分的局部示意图。
 本发明的实施方式
下面结合附图详细说明本实用新型的技术方案：
如图1和2，一种捞渣机自动定位系统，包括设置在钢铁水包5上方的雷达液位计3，还包括竖直设置且上端与雷达液位计3的发射端相接的金属制屏蔽管10，所述屏蔽管10下端安装有朝向下方的金属制喇叭口装置11。
系统还包括设置在钢铁水包5上方的平台4，所述屏蔽管10穿过该平台4，且通过焊接方式与法兰盘9相连接，法兰盘9通过螺钉固定在平台4上。
系统还包括用于输送压缩气体（如氮气）的冷却管12，所述冷却管12与所述屏蔽管10的上部相连通，沿屏蔽管10向下吹送冷风，防止钢铁水包5的高温气体靠近雷达液位计3。
本系统还包括控制单元、限位传感器和行走车6。所述雷达液位计3通过转换器与所述控制单元相连接，所述转换器用于将雷达液位计3发出的RS485信号转换为控制单元可以识别的CAN信号。
所述钢铁水包5放置在行走车6上，所述行走车6上设置有感应块6-1，所述限位传感器包括第一限位传感器7和第二限位传感器8，所述限位传感器用于感应所述感应块6-1。
所述控制单元还接收限位传感器的信号。当第一限位传感器7触发时开始控制雷达液位计3进行检测记录，当第二限位传感器8触发时停止检测记录。
如图3，捞渣机上设有用于控制捞渣臂起落的起落油缸2。捞渣臂与机架转动连接，所述起落油缸2一端与捞渣臂转动连接，另一端与机架转动连接。渣耙1安装在捞渣臂的末端。起落油缸2处安装有磁致位移传感器，用于检测起落油缸2的长度。
控制单元与所述磁致位移传感器相连接，还用通过液压站控制起落油缸2动作。
工作方法为：
（1）设捞渣机的捞渣臂位于最高处时，渣耙1与雷达液位计3之间的高度差为X；该数值在安装捞渣机和雷达液位计3之后通过初始标定获得；
（2）设磁致位移传感器与渣耙1下降高度比例关系K≈5.2；即起落油缸2缩短L，则渣耙1下降量约为5.2L；该比例由捞渣臂的结构尺寸所决定；
（3）根据限位传感器的信号控制雷达液位计3检测液位高度，液位高度采用每秒记录一次，计算出期间所有记录的平均值Z，该数值代表雷达液位计3与液位之间的距离；
（4）渣耙1到液面后下降距离（通过控制单元的屏幕设置）Y，液面深度Y处为渣耙1的目标位置；
（5）计算渣耙1从最高处到达目标位置处，磁致位移传感器的变化数值ΔH：
ΔH=(X+Y+Z)÷K=
Figure dest_path_image001
；
（6）计算渣耙1到达目标位置处时，磁致位移传感器的数值：H-ΔH，H为磁致位移传感器总长。将此数值记录到程序内部，每当磁致位移传感器的数值为此数值，说明已到达目标位置，应当采取下一步动作，从而实现程序自动捞渣。

Claims (5)

  1. 一种捞渣机自动定位系统，其特征在于：包括设置在钢铁水包（5）上方的雷达液位计（3），还包括竖直设置且上端与雷达液位计（3）的发射端相接的屏蔽管（10），所述屏蔽管（10）下端安装有朝向下方的喇叭口装置（11）。
  2. 如权利要求1所述的捞渣机自动定位系统，其特征在于：还包括用于输送压缩气体的冷却管（12），所述冷却管（12）与所述屏蔽管（10）的上部相连通。
  3. 如权利要求1所述的捞渣机自动定位系统，其特征在于：还包括设置在钢铁水包（5）上方的平台（4），所述屏蔽管（10）穿过该平台（4）并通过法兰盘（9）固定在平台（4）上。
  4. 如权利要求1至3任一所述的捞渣机自动定位系统，其特征在于：还包括控制单元、限位传感器和行走车（6）；
    所述控制单元用于接收所述雷达液位计（3）的数据和限位传感器的信号；
    所述钢铁水包（5）放置在行走车（6）上，所述行走车（6）上设置有感应块（6-1），所述限位传感器用于感应所述感应块（6-1）。
  5. 如权利要求4所述的捞渣机自动定位系统，其特征在于：所述限位传感器包括第一限位传感器（7）和第二限位传感器（8）。
PCT/CN2021/102297 2020-07-14 2021-06-25 捞渣机自动定位系统 WO2022012300A1 (zh)

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CN210085496U (zh) * 2019-05-12 2020-02-18 鞍钢股份有限公司 一种转炉与氧枪安全联锁装置
CN212206275U (zh) * 2020-07-14 2020-12-22 烟台盛利达工程技术有限公司 捞渣机自动定位系统

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Publication number Priority date Publication date Assignee Title
US5180228A (en) * 1989-09-18 1993-01-19 Asahi Glass Company Ltd. Radiation thermometer for molten iron and method for measuring the temperature of molten iron
CN205702340U (zh) * 2016-04-20 2016-11-23 莱芜钢铁集团电子有限公司 铁水罐液位测量装置
CN206783702U (zh) * 2017-05-16 2017-12-22 莱芜钢铁集团电子有限公司 高炉料面非接触测量装置
CN207337225U (zh) * 2017-08-17 2018-05-08 江苏新海发电有限公司 一种捞渣机渣水无溢流控制装置
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CN210085496U (zh) * 2019-05-12 2020-02-18 鞍钢股份有限公司 一种转炉与氧枪安全联锁装置
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