阅读说明：本技术 一种钢包烘烤装置智能控制系统 (kinds of ladle baking device intelligent control system ) 是由 张仲曦 黄奇 赵小喜 包国斌 罗新生 衡红 尹丽 高华斌 于 2019-10-25 设计创作，主要内容包括：本发明实施例公开一种钢包烘烤装置智能控制系统,所述系统包括：上位机；PLC控制器；钢包烘烤装置,所述钢包烘烤装置上设置温度检测装置和阀门控制装置,其中,所述温度检测装置和阀门控制装置均与所述PLC控制器连接；当所述温度检测装置检测到钢包底部的温度为预设温度时,所述PLC控制器通过所述阀门控制装置调整所述钢包烘烤装置上空气输送阀门的开度和煤气输送阀门的开度；这样可以通过PLC控制器、温度检测装置和阀门控制装置来实现远程操作控制,并能实现实时调节,从而应对管网煤气压力波动,避免钢包烘烤飘火现象,节省煤气资源,提高钢包的烘烤温度,使得钢包按照耐材升温曲线进行烘烤,进而提高烘烤工艺的效果。(The embodiment of the invention discloses an intelligent control system of steel ladle baking devices, which comprises an upper computer, a PLC (programmable logic controller) and a steel ladle baking device, wherein a temperature detection device and a valve control device are arranged on the steel ladle baking device, the temperature detection device and the valve control device are both connected with the PLC, when the temperature detection device detects that the temperature at the bottom of a steel ladle is a preset temperature, the PLC adjusts the opening degree of an air delivery valve and the opening degree of a gas delivery valve on the steel ladle baking device through the valve control device, so that remote operation control can be realized through the PLC, the temperature detection device and the valve control device, real-time adjustment can be realized, the pressure fluctuation of gas in a pipe network is met, the phenomenon of floating fire during baking the steel ladle is avoided, the gas resource is saved, the baking temperature of the steel ladle is increased, the steel ladle is baked according to a refractory temperature rise curve, and the effect of a baking process is improved.)

1, kinds of ladle baking equipment intelligence control system, its characterized in that, the system includes:

an upper computer (1);

the PLC controller (2), the PLC controller (2) is connected with the upper computer (1);

a ladle baking device (3), wherein the ladle baking device (3) is provided with a temperature detection device (4) and a valve control device (5), the temperature detection device (4) and the valve control device (5) are both connected with the PLC controller (2),

when the temperature detection device (4) detects that the temperature of the bottom of the ladle is the preset temperature, the PLC (2) adjusts the opening degree of an air delivery valve and the opening degree of a gas delivery valve on the ladle baking device (3) through the valve control device (5).

2. The intelligent control system of ladle baking devices according to claim 1, further comprising a ladle cover opening device connected to the PLC controller (2), wherein, when the ladle is set on the baking device, the PLC controller (2) controls the ladle cover to rotate to 45 ° by the ladle cover opening device;

and after the ladle baking device (3) is baked, the PLC (2) controls the ladle cover to face upwards by 75-80 degrees through the ladle cover opening device.

3. The intelligent control system of ladle baking devices according to claim 1, wherein the PLC controller (2) adjusts the opening degree of a gas delivery valve on the ladle baking device (3) to a preset opening degree through the valve control device (5) before the igniter of the ladle baking device (3) is started.

4. The intelligent control system for ladle baking devices according to claim 1, wherein a flame detector is further provided on the ladle baking device (3), wherein the flame detector is in control connection with an igniter of the ladle baking device (3) through the PLC controller (2).

5. The intelligent control system of ladle baking devices according to claim 4, wherein when the flame detector detects a flame, the flame detector is connected with the igniter through the PLC controller (2) and time delay relay in control.

6. The intelligent control system of ladle baking devices according to claim 5, wherein the PLC controller (2) adjusts the opening degree of an air delivery valve on the ladle baking device (3) to a preset opening degree through the valve control device (5) after the flame detector detects a flame.

7. The intelligent control system for ladle baking devices according to claim 4, wherein when the flame detector does not detect a flame, the flame detector is connected to the restart switch through the PLC controller (2), and the restart switch is connected to the igniter control.

8. The intelligent control system of ladle baking devices according to claim 1, wherein the preset temperatures include a th preset temperature, a second preset temperature and a third preset temperature from small to large,

when the temperature detection device (4) detects that the temperature of the bottom of the ladle is the th preset temperature, the PLC controller (2) adjusts the opening degree of an air delivery valve and the opening degree of a gas delivery valve on the ladle baking device (3) to th opening degree through the valve control device (5);

when the temperature detection device (4) detects that the temperature of the bottom of the ladle is changed from the th preset temperature to a second preset temperature, the PLC controller (2) adjusts the opening degree of an air delivery valve and the opening degree of a gas delivery valve on the ladle baking device (3) to a second opening degree through the valve control device (5);

when the temperature detection device (4) detects that the temperature of the bottom of the ladle is changed from the second preset temperature to a third preset temperature, the PLC controller (2) controls the opening degree of an air delivery valve and the opening degree of a gas delivery valve on the ladle baking device (3) to be adjusted to the third opening degree through the valve control device (5).

9. The intelligent control system for ladle baking devices according to claim 1, wherein there are more than two ladle baking devices (3).

Technical Field

The invention relates to steel plant baking device systems, in particular to an intelligent control system for steel ladle baking devices.

Background

In the process of steelmaking by a converter, after molten steel obtained in the converter is smelted, the continuous casting process of the next steps needs to be carried out, a hot ladle baked to process temperature needs to be adopted in the midway process to remove the molten steel smelted by the converter, the process temperature of ladle baking plays a role in reducing cost of steel per ton in steelmaking production, the ladle baking is required to reach the required process temperature, the gas consumption is saved, and a control system of a conventional ladle baking device is controlled by adopting a local control cabinet or a remote control cabinet, so that real-time adjustment cannot be realized.

Disclosure of Invention

In order to solve the technical problems, the embodiment of the invention provides an intelligent control system for steel ladle baking devices, which can realize remote operation control through a PLC (programmable logic controller), a temperature detection device and a valve control device and realize real-time adjustment, so that the pressure fluctuation of gas in a pipe network is responded, the phenomenon of fire drifting during baking of steel ladles is avoided, the gas resource is saved, the baking temperature of the steel ladles is increased, the steel ladles are baked according to a refractory material heating curve, and the effect of a baking process is improved.

In order to achieve the purpose, the technical scheme of the embodiment of the invention is realized as follows:

the embodiment of the invention provides an kinds of ladle baking device intelligent control system, which comprises:

an upper computer;

the PLC controller is connected with the upper computer;

a ladle baking device, wherein a temperature detection device and a valve control device are arranged on the ladle baking device, the temperature detection device and the valve control device are both connected with the PLC controller, wherein,

when the temperature detection device detects that the temperature of the bottom of the ladle is the preset temperature, the PLC controller adjusts the opening degree of an air delivery valve and the opening degree of a gas delivery valve on the ladle baking device through the valve control device.

In the embodiment of the invention, the system further comprises a ladle cover opening device, and the ladle cover opening device is connected with the PLC controller, wherein after the ladle is arranged on the baking device, the PLC controller controls the ladle cover to rotate to 45 degrees through the ladle cover opening device;

after the baking of the ladle baking device is finished, the PLC controls the ladle cover to face upwards by 75-80 degrees through the ladle cover opening device.

In the embodiment of the invention, a pressure detection device is arranged on a gas pipe of the ladle baking device, wherein when the pressure value detected by the pressure detection device is greater than the preset pressure value, the PLC drives an igniter on the ladle baking device to start.

In the embodiment of the invention, before the igniter of the ladle baking device is started, the PLC controller adjusts the opening degree of the gas delivery valve on the ladle baking device to a preset opening degree through the valve control device.

In the embodiment of the invention, a flame detector is further arranged on the ladle baking device, wherein the flame detector is in control connection with an igniter of the ladle baking device through the PLC.

In the embodiment of the invention, when the flame detector detects a flame, the flame detector is connected with the igniter in a control mode through the PLC and the th time delay relay in sequence.

In the embodiment of the present invention, when the flame detector detects a flame, the PLC controller adjusts the opening degree of the air delivery valve of the ladle roasting apparatus to a preset opening degree through the valve control device.

In the embodiment of the invention, when the flame detector does not detect flame, the flame detector is connected with the restart switch through the PLC, and the restart switch is in control connection with the igniter.

In the embodiment of the present invention, the preset temperatures sequentially include th preset temperature, a second preset temperature and a third preset temperature from small to large, wherein,

when the temperature detection device detects that the temperature of the bottom of the ladle is the th preset temperature, the PLC controller adjusts the opening degree of an air delivery valve and the opening degree of a gas delivery valve on the ladle baking device to th opening degree through the valve control device;

when the temperature detection device detects that the temperature of the bottom of the ladle is changed from the th preset temperature to a second preset temperature, the PLC controller adjusts the opening degree of an air delivery valve and the opening degree of a gas delivery valve on the ladle baking device to a second opening degree through the valve control device;

when the temperature detection device detects that the temperature of the bottom of the ladle is changed from the second preset temperature to a third preset temperature, the PLC controls the device to adjust the opening degree of an air delivery valve and the opening degree of a gas delivery valve on the ladle baking device to a third opening degree through the valve .

In the embodiment of the invention, the ladle baking device has more than two.

The embodiment of the invention provides an intelligent control system for ladle baking devices, which comprises an upper computer, a PLC (programmable logic controller) and a ladle baking device, wherein the PLC is connected with the upper computer, a temperature detection device and a valve control device are arranged on the ladle baking device, the temperature detection device and the valve control device are both connected with the PLC, when the temperature detection device detects that the temperature of the bottom of a ladle is a preset temperature, the PLC adjusts the opening degree of an air delivery valve and the opening degree of a gas delivery valve on the ladle baking device through a valve control device, the ladle baking device is used for baking the ladle, the valve control device is used for controlling the opening degrees of the air delivery valve and the gas delivery valve on the ladle baking device, the temperature detection device is used for detecting the temperature of the bottom of the ladle, the PLC is used for controlling the ladle baking device, and the upper computer can be used for displaying the temperature value of the bottom of the temperature detection device, when the temperature detection device detects that the temperature is the temperature, the temperature detection device controls the opening degree of the air delivery valve of the ladle baking device to control the opening degree of the ladle baking device and the gas delivery valve to ensure that the ladle baking device is more uniform.

Drawings

Fig. 1 is a schematic structural diagram of a ladle provided in embodiment of the present invention;

fig. 2 is a block diagram of an intelligent control system for a ladle baking apparatus according to an embodiment of the present invention;

FIG. 3 is a flow chart of a control system according to a second embodiment of the present invention;

fig. 4 is a schematic diagram of a PLC system according to a second embodiment of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.