Intelligent blast furnace dust removal system

Abstract

An intelligent blast furnace dust removal system relates to the technical field of environment-friendly dust removal and comprises a visual capture system and a DCS (distributed control system), the visual capture system is mounted at an iron outlet and a tank position swing chute of a blast furnace, and electric adjusting valves and pressure sensors are arranged at dust removal point pipelines and dust removal branch pipes of the blast furnace. The visual capturing system is electrically connected with an electric adjusting valve and a pressure sensor, the DCS system is electrically connected with the electric adjusting valve, the pressure sensor, the visual capturing system, a fan and a motor, and the DCS system is electrically connected with an upper computer. The system can accurately recognize and adapt to different working conditions, self-balance of the air volume of a pipe network and optimal air volume distribution are achieved, energy consumption is reduced, and dust removal efficiency is improved; meanwhile, the system operation strategy is continuously optimized through big data operation and deep learning, and the intelligent level is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection dust removal, and in particular to an intelligent blast furnace dust removal system. Background Art

[0002] In today's industrial environment, environmental protection requirements are becoming increasingly stringent, and the steel industry is also undergoing a profound transformation towards green and intelligent directions. Against this backdrop, it is particularly important to develop key environmental dust removal technologies for green and intelligent blast furnaces. In the traditional blast furnace ironmaking process, a large amount of high-temperature smoke will be generated. If these smoke are directly discharged without effective treatment, they will have a serious impact on the atmospheric environment.

[0003] At present, in order to deal with these high-temperature smoke, steel companies generally use dust removal systems. However, these dust removal systems consume a lot of water, electricity, gas and other energy during operation. This high-energy consumption operation mode not only increases the operating costs of enterprises, but also puts a lot of pressure on the environment, and to a certain extent restricts the sustainable development of the steel industry. In order to solve this problem, the industry is in urgent need of an efficient, intelligent and environmentally friendly dust removal system. The system needs to be able to effectively capture blast furnace flue gas and significantly reduce energy consumption, thereby providing strong technical support for the transformation and upgrading of my country's steel industry and further promoting the development of the green economy. Utility Model Content

[0004] The purpose of the utility model is to solve the problems raised in the above-mentioned background technology, and then propose an intelligent blast furnace dust removal system.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] An intelligent blast furnace dust removal system comprises an electric regulating valve, a pressure sensor, a visual capture system, a DCS system, a host computer, a fan and a motor. The visual capture system is installed at the iron outlet and the tank swing chute of the blast furnace. Each dust removal point pipeline and dust removal branch pipe of the blast furnace are provided with an electric regulating valve and a pressure sensor. The visual capture system is electrically connected to the electric regulating valve and the pressure sensor. The DCS system is electrically connected to the electric regulating valve, the pressure sensor, the visual capture system, the fan and the motor. The DCS system is electrically connected to the host computer.

[0007] Furthermore, the visual capture system includes a high-temperature resistant camera and an infrared imager. The high-temperature resistant camera is installed at the iron outlet and the tank swing chute of the blast furnace. The iron outlet is also provided with an infrared imager.

[0008] Furthermore, two high temperature resistant cameras are installed at each iron outlet and tank swing chute.

[0009] Furthermore, the infrared imager is installed at the iron outlet.

[0010] Furthermore, the visual capture system can determine the optimal pipeline pressure value at the dust removal point pipeline and the dust removal branch pipe according to the change of the dust-laden flue gas boundary.

[0011] Furthermore, the DCS system can control the opening of the electric regulating valve according to the optimal pipeline pressure value.

[0012] Furthermore, the DCS system can determine the air volume and frequency according to the visual capture system to adjust the operating frequency of the fan and the motor.

[0013] Furthermore, the DCS system can start or close the electric regulating valve according to the visual capture system.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the utility model realizes comprehensive optimization and intelligent control of the blast furnace dust removal process by comprehensively using electric regulating valves, pressure sensors, visual capture systems, DCS systems, host computers, fans and other intelligent equipment. It can accurately identify and adapt to different working conditions, realize self-balancing and optimal air volume distribution of the pipe network, reduce energy consumption and improve dust removal efficiency; at the same time, through big data computing and deep learning, it continuously optimizes the system operation strategy, improves the level of intelligence, and finally realizes the environmentally friendly, efficient and intelligent operation of blast furnace dust removal, making positive contributions to energy conservation, emission reduction and sustainable development of enterprises. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Among them: 1 high temperature resistant camera, 2 infrared imager, 3 electric regulating valve, 4 pressure sensor, 5 visual capture system, 6 DCS system, 7 host computer, 8 motor. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. The utility model is further described in combination with the drawings and embodiments:

[0018] like Figure 1As shown, an intelligent blast furnace dust removal system includes an electric regulating valve 3, a pressure sensor 4, a visual capture system 5, a DCS system 6, a host computer 7, a fan and a motor 8. The visual capture system is installed at the iron outlet and the tank swing chute of the blast furnace to accurately capture the real-time working conditions on site. Each dust removal point pipeline and dust removal branch pipe of the blast furnace are equipped with an electric regulating valve and a pressure sensor. The visual capture system is electrically connected with the electric regulating valve and the pressure sensor. These devices are closely connected with the visual capture system through electrical connection to form an efficient and intelligent dust removal network. The DCS system is electrically connected with an electric regulating valve, a pressure sensor, a visual capture system, a fan and a motor, and the DCS system is electrically connected with a host computer. Such a design enables the DCS system to accurately determine the optimal air volume, i.e., the pressure value, through the visual capture system, identify the working conditions on site in real time, and intelligently realize the interlocking control of the operating frequency of the fan and the motor according to different working conditions. In addition, the DCS system can automatically adjust the opening of the electric regulating valve according to the real-time operating conditions and set pressure values ​​to achieve self-balancing of the pipeline network and ensure the intelligent operation of the entire dust removal system.

[0019] In at least one embodiment, the visual capture system includes a high temperature resistant camera 1 and an infrared imager 2, and the high temperature resistant camera is installed at the tap hole and the tank swing chute of the blast furnace to ensure stable operation in extreme environments. An infrared imager is also provided at the tap hole to enhance the ability to identify the working conditions. Through this series of visual equipment, the visual capture system can accurately capture the real-time operating conditions on site, such as the opening of the tap, normal tapping, plugging, maintenance and other states, as well as the key moments such as the beginning and end of the pouring of molten iron at the tank swing chute. This information is transmitted to the DCS system in real time, providing a rich data foundation for subsequent intelligent control.

[0020] Furthermore, during the initial commissioning of the dust removal system, the visual capture system can determine the most suitable air volume, i.e. the optimal pipeline pressure value, required for each dust removal point and dust removal branch pipe under different working conditions based on the dust-containing flue gas boundary changes captured in real time by the high-temperature resistant camera, and operate at low energy consumption. This function enables the dust removal system to operate efficiently at low energy consumption, thus achieving the goal of energy saving and environmental protection.

[0021] In order to achieve accurate capture of working conditions and reduce the failure rate, two high-temperature resistant cameras are installed at each tap hole and tank swing chute. These cameras are made of high-temperature resistant materials and can effectively prevent damage caused by high temperature and molten iron splashing. At the same time, the two cameras serve as backup for each other, which not only reduces the failure rate, but also greatly increases the accuracy of working condition recognition.

[0022] In order to achieve the accuracy of working condition capture, the infrared imager is installed at the tap hole, which can assist in identifying the boundary between the tap hole opening and normal tapping, thereby further improving the recognition ability of the visual capture system.

[0023] In at least one embodiment, the DCS system can identify the real-time working conditions and the pressure measured by the pressure sensor based on the visual capture system, automatically compare them with the working condition set pressure value, and adjust the opening of the electric regulating valve according to the set program to achieve self-balancing of the air volume in the pipe network. This function of the DCS system enables the entire dust removal system to operate more intelligently and efficiently.

[0024] Furthermore, the DCS system can determine the required air volume and frequency corresponding to the working conditions through big data calculation according to the working conditions determined by the visual capture system, and then adjust the operating frequency of the fan and motor to achieve interlocking control of the on-site working conditions and the fan and motor. This function enables the dust removal system to more accurately match the needs under different working conditions, improving the system's operating efficiency and dust removal effect.

[0025] Furthermore, the DCS system can also intelligently start or close the corresponding electric regulating valve according to the working conditions determined by the visual capture system. This can quickly switch to the corresponding taphole operating state to ensure that the dust removal system always maintains the best working state. This intelligent control function of the DCS system greatly improves the response speed and operating efficiency of the dust removal system.

[0026] Working mode: During the initial debugging period of the dust removal system, the DCS system 6 adjusts the opening of the electric regulating valve 3 according to the change of the dust-containing flue gas boundary identified by the high-temperature resistant camera 1 through the interlocking control of the electric regulating valve 3 and the visual capture system 5. At the same time, the measured pressure value of the pressure sensor 4 is referred to to determine the most suitable air volume required for each dust removal point and dust removal branch pipe under different working conditions, that is, the optimal pipeline pressure value. When the blast furnace dust removal intelligent control system is officially put into operation, the DCS system 6 will adjust the operating frequency of the fan and motor 8 and switch the corresponding electric regulating valve 3 according to the working conditions identified by the visual capture system 5. The DCS system 6 will also adjust the corresponding electric regulating valve 3 according to the real-time working conditions and the set pressure value to achieve self-balancing of the pipe network and ensure the optimal operation of the air volume at each dust removal point. The operator can view the various operating parameters of the system in real time through the host computer 7, and can perform corresponding operations on the DCS system 6 when necessary. The DCS system 6 continuously optimizes the operating efficiency of the dust removal system through big data collection and deep learning. According to actual operating data and changes in operating conditions, the DCS system 6 can adjust the control strategy automatically to achieve more efficient dust removal and lower energy consumption.

[0027] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. An intelligent blast furnace dust removal system, characterized in that: It includes an electric regulating valve, a pressure sensor, a visual capture system, a DCS system, a host computer, a fan and a motor. The visual capture system is installed at the iron outlet and the tank swing chute of the blast furnace. Electric regulating valves and pressure sensors are provided at each dust removal point pipeline and dust removal branch pipe of the blast furnace. The visual capture system is electrically connected to the electric regulating valve and the pressure sensor. The DCS system is electrically connected to the electric regulating valve, the pressure sensor, the visual capture system, the fan and the motor. The DCS system is electrically connected to the host computer.

2. The intelligent blast furnace dust removal system according to claim 1 is characterized in that: The visual capture system includes a high-temperature resistant camera and an infrared imager. The high-temperature resistant camera is installed at the iron outlet and the tank swing chute of the blast furnace. The iron outlet is also provided with an infrared imager.

3. The intelligent blast furnace dust removal system according to claim 2 is characterized in that: Two high-temperature resistant cameras are installed at each iron outlet and tank swing chute.

4. The intelligent blast furnace dust removal system according to claim 2 is characterized in that: The infrared imager is installed at the tapping hole.

5. The intelligent blast furnace dust removal system according to claim 3 or 4, characterized in that: The visual capture system can determine the optimal pipeline pressure value at the dust removal point pipeline and the dust removal branch pipe according to the dust-containing flue gas boundary changes.

6. The intelligent blast furnace dust removal system according to claim 5 is characterized in that: The DCS system can control the opening of the electric regulating valve according to the optimal pipeline pressure value.

7. The intelligent blast furnace dust removal system according to claim 5 is characterized in that: The DCS system can determine the air volume and frequency based on the visual capture system to adjust the operating frequency of the fan and the motor.

8. The intelligent blast furnace dust removal system according to claim 6 is characterized in that: The DCS system can start or close the electric regulating valve according to the vision capture system.

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