Safety protection device for steelmaking oxygen lance

Abstract

The utility model relates to a safety protection device for a steelmaking oxygen lance, which is characterized in that an oxygen lance water inlet flowmeter is arranged on a cooling water inlet pipeline of the oxygen lance, an oxygen lance water return flowmeter is arranged on a cooling water return inlet pipeline of the oxygen lance, an oxygen flowmeter is arranged on an oxygen pipeline of the oxygen lance, and a tension sensor is arranged on a steel wire rope; a support is arranged on the side face of the converter body, the photoelectric switch is arranged on the support, the photoelectric switch and the photoelectric induction plate are located on the same horizontal plane, the steam drum liquid level meter is used for detecting the liquid level of the steam drum, and the speed measurement sensor is arranged on a fan shaft of the dust removal fan. The system has the advantages that the oxygen lance water inlet flow detection sensor, the oxygen lance water return flow detection sensor, the oxygen flow detection sensor, the steam drum liquid level detection sensor, the converter zero position detection sensor and the like are connected with the converter substation PLC, and data information collected by the detection sensors is uploaded to the cloud server and is uploaded to the cloud management center through the cloud server, so that the real-time monitoring of the converter production process is realized, and the production efficiency is improved. And the accident occurrence probability is reduced.

Description

Technical Field

[0001] The utility model relates to, in particular to a safety protection device for a steelmaking oxygen lance. Background Art

[0002] The core of production in the metallurgical industry is safety. The safety of oxygen lances is of vital importance in the steelmaking process. The working environment of the oxygen lance has many requirements, such as the water inlet flow rate of the oxygen lance, the water return flow rate of the oxygen lance, the oxygen flow rate, the drum liquid level, the converter zero position detection, etc. If one of the conditions is not met during the production process and is not handled in time, it is very likely to cause a safety accident, resulting in the oxygen lance being unable to work normally, and becoming a major hidden danger to production equipment. Summary of the invention

[0003] The utility model aims to provide a steelmaking oxygen lance safety protection device, which reduces the occurrence rate of safety accidents, makes full use of cloud management center resources, saves monitoring costs, has a simple structure, and is easy to implement.

[0004] To achieve the above purpose, the utility model is implemented through the following technical solutions:

[0005] A steelmaking oxygen lance safety protection device comprises a converter substation PLC and a converter main station PLC, the converter substation PLC is connected to the converter main station PLC, and also comprises an oxygen lance water inlet flowmeter, an oxygen lance return water flowmeter, an oxygen flowmeter, a tension sensor, a photoelectric switch, a photoelectric induction board, a drum level meter, and a speed sensor, wherein the oxygen lance water inlet flowmeter is arranged on a cooling water inlet pipeline of the oxygen lance, the oxygen lance return water flowmeter is arranged on a cooling return water inlet pipeline of the oxygen lance, the oxygen flowmeter is arranged on an oxygen pipeline of the oxygen lance, a steel wire rope is arranged between the oxygen lance and a steel wire rope drum, the tension sensor is arranged on the steel wire rope, a bracket is arranged on the side of the converter body, the photoelectric switch is arranged on the bracket, the photoelectric induction board is arranged on the horizontal axis of the converter, the photoelectric switch and the photoelectric induction board are located on the same horizontal plane, the drum level meter is used to detect the drum level, a smoke hood is arranged between the drum and the converter, a dust removal fan is connected to the smoke hood, and the speed sensor is arranged on the fan shaft of the dust removal fan;

[0006] The oxygen lance water inlet flowmeter, oxygen lance water return flowmeter, oxygen flowmeter, tension sensor, photoelectric switch, drum liquid level meter and speed sensor are respectively connected to the converter substation PLC.

[0007] The converter substation PLC includes a power module, a communication module 1, an analog input module, and a digital input module. The power module, communication module 1, analog input module, and digital input module are connected through ports. The oxygen lance inlet flowmeter, oxygen lance return flowmeter, oxygen flowmeter, drum level meter, and speed sensor are connected to the analog input module through ports. The tension sensor and photoelectric switch are connected to the digital input module through ports. The power module is used to power the converter substation PLC.

[0008] It also includes a wireless communication module. The converter master station PLC includes a communication module 2 and a CPU. The communication module 1 is connected to the communication module 2 through a port, the communication module 2 is connected to the CPU through a port, and the CPU is connected to the wireless communication module.

[0009] The wireless communication module uploads the CPU data information to the cloud server through the wireless transmission network. The cloud server saves the data information to the cloud management center through communication. The cloud management center connects to the mobile device through communication. The APP of the mobile device downloads the information of the cloud management center and uploads the feedback information to the cloud management center. The feedback information is then transmitted to the CPU module.

[0010] The photoelectric switch is used to detect the zero position of the converter.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The oxygen lance water inlet flow, oxygen lance return flow, oxygen flow, drum liquid level, converter zero position and other detection sensors are connected to the converter substation PLC, and the data information collected by the detection sensors is uploaded to the cloud server, and then uploaded to the cloud management center through the cloud server. The oxygen lance detection sensors are monitored in real time to achieve real-time monitoring of the converter production process. If the detection sensor signal is abnormal, an alarm will be issued to reduce the probability of accidents. The resources of the cloud management center are fully utilized, saving overall monitoring costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the front view of the utility model.

[0014] In the figure: 1-converter 2-oxygen lance 3-oxygen lance water inlet flowmeter 4-oxygen lance water return flowmeter 5-speed sensor 6-wire rope drum 7-oxygen flowmeter 8-steam drum 9-fume hood 10-steam drum liquid level meter 11-dust removal fan. DETAILED DESCRIPTION

[0015] The present invention is described in detail below in conjunction with the accompanying drawings of the specification, but it should be noted that the implementation of the present invention is not limited to the following embodiments.

[0016] The following examples are implemented based on the technical solution of the utility model, and provide detailed implementation methods and specific operation processes, but the protection scope of the utility model is not limited to the following examples. The methods used in the following examples are conventional methods unless otherwise specified.

[0017] [Example 1]

[0018] See Figure 1, add the PLC of converter 1 substation, connect the PLC of converter 1 substation with the PLC of converter 1 main station, and connect the CPU of converter 1 main station PLC with the cloud server through the wireless communication module, upload the data information of the detection sensor collected by the CPU to the cloud management center through the cloud server for real-time monitoring, so that the operating personnel can monitor the production process of converter 1 in real time. Once the detection sensor data is abnormal during the production process, the cloud management center will issue an alarm information in time to reduce the occurrence of accidents. A safety protection device for steelmaking oxygen lance 2, comprising a converter 1 substation PLC and a converter 1 main station PLC, the converter 1 substation PLC and the converter 1 main station PLC are connected, and also comprises an oxygen lance water inlet flowmeter 3, an oxygen lance water return flowmeter 4, an oxygen flowmeter 7, a tension sensor SQ1, a photoelectric switch SQ2, a photoelectric sensor board, a drum liquid level meter 10, and a speed sensor 5. The oxygen lance water inlet flowmeter 3 is arranged on the cooling water inlet pipeline of the oxygen lance 2, the oxygen lance water return flowmeter 4 is arranged on the cooling water return pipeline of the oxygen lance 2, the oxygen flowmeter 7 is arranged on the oxygen pipeline of the oxygen lance 2, a steel wire rope is arranged between the oxygen lance 2 and the steel wire rope drum 6, and a tension sensor SQ1 is arranged on the steel wire rope, a bracket is arranged on the side of the converter 1 body, a photoelectric switch SQ2 is arranged on the bracket, a photoelectric sensing plate is arranged on the horizontal axis of the converter 1, the photoelectric switch SQ2 and the photoelectric sensing plate are located on the same horizontal plane, a drum level gauge 10 is used to detect the liquid level of the drum 8, a smoke hood 9 is arranged between the drum 8 and the converter 1, a dust removal fan 11 is connected to the smoke hood 9, and a speed sensor 5 is arranged on the fan shaft of the dust removal fan 11; an oxygen gun water inlet flowmeter 3, an oxygen gun water return flowmeter 4, an oxygen flowmeter 7, a tension sensor SQ1, a photoelectric switch SQ2, a drum level gauge 10, and a speed sensor 5 are respectively connected to the converter 1 substation PLC.

[0019] The converter 1 substation PLC includes a power module, a communication module 1, an analog input module, a digital input module, and a wireless communication module. The power module, the communication module 1, the analog input module, and the digital input module are connected through ports. The oxygen lance water inlet flowmeter 3, the oxygen lance water return flowmeter 4, the oxygen flowmeter 7, the drum level meter 10, and the speed sensor 5 are connected to the analog input module through ports. The tension sensor SQ1 and the photoelectric switch SQ2 are connected to the digital input module through ports. The power module is used to supply power to the converter 1 substation PLC. The converter 1 main station PLC includes a communication module 2 and a CPU. The communication module 1 is connected to the communication module 2 through ports. The communication module 2 is connected to the CPU through ports. The CPU is connected to the wireless communication module. The wireless communication module uploads the CPU data information to the cloud server through a wireless transmission network. The cloud server saves the data information to the cloud management center through communication. The cloud management center connects to the mobile device through communication. The APP of the mobile device downloads the information of the cloud management center and uploads the feedback information to the cloud management center. The feedback information is then transmitted to the CPU module.

[0020] Working process:

[0021] The detection sensors of the converter oxygen lance transmit the data such as water inlet flow, return water flow, oxygen flow, drum liquid level, converter zero position, etc. to the converter main station PLC or cloud management center through the communication module for data processing. The data signals collected by each detection sensor are normal, allowing the oxygen lance to operate normally. If one of the collected data signals does not meet the load requirements, the oxygen lance will not be able to descend to blow oxygen. If the detection signal fails during the oxygen lance blowing, the oxygen lance will be automatically lifted to the waiting point after a delay of 5 to 10 seconds to ensure the safety of the oxygen lance body.

[0022] The utility model connects detection sensors such as oxygen lance water inlet flow, oxygen lance return flow, oxygen flow, drum liquid level, converter zero position, etc. to the added converter substation PLC, and uploads data information collected by the detection sensors to the cloud server, and then uploads it to the cloud management center through the cloud server, so as to monitor the detection sensors of the oxygen lance in real time, realize real-time monitoring of the converter production process, and reduce the probability of accidents; fully utilize the resources of the cloud management center, and save monitoring costs as a whole.

Claims

1. A steelmaking oxygen lance safety protection device, comprising a converter substation PLC and a converter main station PLC, the converter substation PLC and the converter main station PLC are connected, characterized in that: It also includes an oxygen lance water inlet flowmeter, an oxygen lance water return flowmeter, an oxygen flowmeter, a tension sensor, a photoelectric switch, a photoelectric sensing board, a drum level meter, and a speed sensor. The oxygen lance water inlet flowmeter is arranged on the cooling water inlet pipeline of the oxygen lance, the oxygen lance water return flowmeter is arranged on the cooling water return pipeline of the oxygen lance, the oxygen flowmeter is arranged on the oxygen pipeline of the oxygen lance, a steel wire rope is arranged between the oxygen lance and the steel wire rope drum, the tension sensor is arranged on the steel wire rope, a bracket is arranged on the side of the converter body, the photoelectric switch is arranged on the bracket, the photoelectric sensing board is arranged on the horizontal axis of the converter, the photoelectric switch and the photoelectric sensing board are located on the same horizontal plane, the drum level meter is used to detect the drum level, a smoke hood is arranged between the steam drum and the converter, the dust removal fan is connected to the smoke hood, and the speed sensor is arranged on the fan shaft of the dust removal fan; The oxygen lance water inlet flowmeter, oxygen lance water return flowmeter, oxygen flowmeter, tension sensor, photoelectric switch, drum liquid level meter and speed sensor are respectively connected to the converter substation PLC.

2. A steelmaking oxygen lance safety protection device according to claim 1, characterized in that: The converter substation PLC includes a power module, a communication module 1, an analog input module, and a digital input module. The power module, the communication module 1, the analog input module, and the digital input module are connected through a port. The oxygen gun water inlet flowmeter, the oxygen gun water return flowmeter, the oxygen flowmeter, the drum liquid level meter, and the speed sensor are connected to the analog input module through a port. The tension sensor and the photoelectric switch are connected to the digital input module through a port. The power module is used to power the converter substation PLC.

3. A steelmaking oxygen lance safety protection device according to claim 2, characterized in that: It also includes a wireless communication module. The converter master station PLC includes a communication module 2 and a CPU. The communication module 1 is connected to the communication module 2 through a port, the communication module 2 is connected to the CPU through a port, and the CPU is connected to the wireless communication module.

4. A steelmaking oxygen lance safety protection device according to claim 3, characterized in that: The wireless communication module uploads the data information of the CPU to the cloud server through the wireless transmission network. The cloud server saves the data information to the cloud management center through communication. The cloud management center connects to the mobile device through communication. The APP of the mobile device downloads the information of the cloud management center and uploads feedback information to the cloud management center, and then the feedback information is transmitted to the CPU module.

5. A steelmaking oxygen lance safety protection device according to claim 1, characterized in that: The photoelectric switch is used to detect the zero position of the converter.

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