Intelligent air suction system based on multi-mode perception and working method
Through the multimodal sensing intelligent air suction system, millimeter-wave radar and smoke monitor are used to monitor the flow direction of molten iron and flue gas dissipation, combined with the intelligent control system to adjust the diversion blades and fans, the problem of unstable smoke collection during blast furnace discharge is solved, and efficient and energy-saving smoke treatment is achieved.
Patent Information
- Application Number
- CN202510622769.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-15
- Publication Date
- 2025-08-01
AI Technical Summary
The existing air suction system is difficult to collect smoke and dust stably during the blast furnace discharge process, resulting in smoke and dust escape or over-suction, and dust accumulation in air suction hood and pipelines affect the collection efficiency.
Design an intelligent air suction system based on multimodal perception, use millimeter wave radar to monitor the flow direction and flow rate of molten iron, and a smoke monitor array monitors the dissipation of smoke, combines an intelligent control system to adjust the follow-up diversion vane and frequency converter fan, establish a predictive control model, and realize dynamic regulation.
It improves the effectiveness of smoke collection and fan operation efficiency, reduces energy consumption, and ensures the normal operation of the system.
Smart Images
Figure CN120394497A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of gas dust removal, and in particular to an intelligent air suction system and a working method based on multimodal perception. Background Art
[0002] The blast furnace taproom is a major source of pollution in ironworks. Slag generates dust as it flows from the taphole and through the slag ditch. To prevent this dust from escaping and contaminating the surrounding environment, a suction system is typically installed with multiple hoods at key locations prone to dust generation. This system uses the suction of induced draft fans to collect and purify the generated dust.
[0003] However, the generation of smoke during blast furnace tapping is discontinuous and unstable, and the location of smoke generation during molten iron flow is also unstable. Currently installed fixed suction hoods are difficult to collect smoke based on the location of smoke generation. The entire suction system lacks self-regulation capabilities, resulting in insufficient suction power and smoke escape when smoke levels are high, and excessive suction and electricity consumption when smoke levels are low. Furthermore, smoke deposits in the suction hood and adsorption pipelines increase local resistance and affect collection efficiency. Therefore, it is necessary to design an intelligent suction system and operating method based on multimodal sensing to address the problems of poor smoke absorption and low collection efficiency in existing suction systems. Summary of the Invention
[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide an intelligent suction system and working method based on multimodal perception.
[0005] The technical solution adopted by the present invention to solve its technical problems is: an intelligent suction system based on multimodal perception, including a suction hood body and a variable frequency fan, a follower guide vane is installed at the inlet of the suction hood body, the suction hood body is connected to the variable frequency fan through a pipeline, an automatic dust cleaning device is installed on the pipeline, a millimeter wave radar and multiple smoke and dust monitors are installed near the suction hood body, the smoke and dust monitors are arranged in an array, the millimeter wave radar and the smoke and dust monitors are connected to the intelligent control system through a data cable, and the intelligent control system is connected to the motor of the follower guide vane, the automatic dust cleaning device and the variable frequency fan through a control cable.
[0006] Specifically, the follower guide blade is installed at the inlet of the air hood body through a swing shaft, 1 / 2-2 / 3 of the follower guide blade is outside the inlet of the air hood body, the swing shaft is installed on the air hood body through a bearing seat, and one end of the swing shaft is connected to the motor of the follower guide blade.
[0007] Specifically, the swing angle range of the follower guide vane is ±60°.
[0008] Specifically, the millimeter-wave radar monitors the flow direction and velocity of the molten iron, and the smoke and dust monitor is arranged in an array to monitor the escape of the flue gas. The monitoring data of the millimeter-wave radar and the smoke and dust monitor are synchronized to the intelligent control system.
[0009] Specifically, the automatic ash cleaning device is installed at the ash accumulation part of the pipeline of the adsorption hood main body. The automatic ash cleaning device uses a vibration motor, and the vibration motor peels off the dust attached to the inner wall of the pipeline through periodic high-frequency vibration.
[0010] A working method of an intelligent air suction system based on multi-modal perception includes the following steps:
[0011] S1. The millimeter-wave radar monitors the flow direction and velocity of the molten iron and transmits the signal to the intelligent control system. The intelligent control system controls the angle of the follow-up diversion vane to match the flow direction and velocity of the molten iron.
[0012] S2. Multiple smoke and dust monitors arranged in an array monitor the gradient change of the smoke and dust around the air suction hood main body and transmit the signal to the intelligent control system. The intelligent control system controls the air volume of the variable-frequency fan to match the gradient change of the smoke and dust.
[0013] S3. At the same time, the intelligent control system periodically starts the automatic ash cleaning device to clean the ash to ensure the normal operation of the system.
[0014] S4. The intelligent control system also integrates a predictive control model established by combining the flow direction and velocity of the molten iron, the law of smoke and dust generation, and the characteristics of flue gas escape during the tapping process of the blast furnace.
[0015] The present invention has the following beneficial effects:
[0016] The intelligent air suction system and working method based on multi-modal perception designed by the present invention intelligently adjust the follow-up diversion vane to track the flow direction and velocity of the molten iron according to the monitoring data of the millimeter-wave radar, improving the effectiveness of smoke and dust collection; dynamically regulating the air volume of the fan according to the smoke and dust monitoring data, improving the operating efficiency of the fan and reducing the operating energy consumption.
[0017] The intelligent air suction system and working method based on multi-modal perception designed by the present invention combine the flow direction and velocity of the molten iron, the law of smoke and dust generation, and the characteristics of flue gas escape during the tapping process of the blast furnace, establish a predictive control model, and further improve the timeliness and effectiveness of the regulation of the follow-up diversion vane and the fan. Description of the Drawings
[0018] Figure 1 It is a schematic structural diagram of an intelligent air suction system based on multi-modal perception.
[0019] In the figure: 1 - suction hood body; 2 - follow-up guide vane; 3 - millimeter-wave radar; 4 - smoke monitor; 5 - automatic dust cleaning device; 6 - intelligent control system; 7 - variable-frequency fan. Detailed implementation mode
[0020] The following will further clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0021] As Figure 1 shown, an intelligent suction system based on multi-modal perception includes a suction hood body 1, a follow-up guide vane 2, a millimeter-wave radar 3, a smoke monitor 4, an automatic dust cleaning device 5, an intelligent control system 6, and a variable-frequency fan 7. A follow-up guide vane 2 is installed at the inlet of the suction hood body 1. The suction hood body 1 is connected to the variable-frequency fan 7 through a pipeline, and an automatic dust cleaning device 5 is installed on the pipeline. A millimeter-wave radar 3 and multiple smoke monitors 4 are installed near the suction hood body 1. The smoke monitors 4 are arranged in an array. The millimeter-wave radar 3 and the smoke monitors 4 are connected to the intelligent control system 6 through data lines. The intelligent control system 6 is connected to the motor of the follow-up guide vane 2, the automatic dust cleaning device 5, and the variable-frequency fan 7 through control cables.
[0022] The follow-up guide vane 2 is installed at the inlet of the suction hood body 1 through a swing shaft. 1 / 2 - 2 / 3 of the follow-up guide vane 2 is outside the inlet of the suction hood body 1. The swing shaft is installed on the suction hood body 1 through a bearing seat, and one end of the swing shaft is connected to the motor of the follow-up guide vane 2.
[0023] The follow-up guide vane 2 is controlled to swing by a motor as needed. The swing angle range of the follow-up guide vane 2 is ±60°.
[0024] The millimeter-wave radar 3 monitors the flow direction and velocity of the molten iron flow. The smoke monitors 4 are arranged in an array to monitor the smoke dispersion. The monitoring data of the millimeter-wave radar 3 and the smoke monitors 4 are synchronized to the intelligent control system 6.
[0025] The automatic dust cleaning device 5 is installed at the ash accumulation part of the pipeline of the adsorption hood main body 1. The automatic dust cleaning device 5 uses a vibration motor, and the vibration motor peels off the dust attached to the inner wall of the pipeline through periodic high-frequency vibration.
[0026] During the actual operation process, the millimeter-wave radar 3 monitors the flow direction and velocity of the molten iron flow, and the millimeter-wave radar 3 transmits the signal to the intelligent control system 6. The motor of the follow-up guide vane 2 is controlled through the intelligent control system 6, and then the swing angle of the follow-up guide vane 2 is controlled to make the follow-up guide vane 2 match the flow direction and velocity of the molten iron flow to improve the effectiveness of smoke collection.
[0027] A plurality of soot monitors 4 arranged in an array monitor the gradient change of soot around the air suction hood body 1, and the soot monitors 4 transmit signals to the intelligent control system 6, and the intelligent control system 6 controls the air volume of the variable-frequency fan 7 to match the soot gradient change, so as to improve the fan operation efficiency and reduce the operation energy consumption.
[0028] At the same time, in order to avoid ash accumulation at the key parts of the adsorption hood main body 1 and the air suction system pipeline, the intelligent control system 6 periodically starts the automatic ash cleaning device 5 to clean the ash, so as to ensure the normal operation of the system.
[0029] In addition, in order to further improve the timeliness and effectiveness of regulation, a predictive control model established by combining the iron water flow direction and velocity, soot generation law and flue gas dispersion characteristics during the blast furnace tapping process is integrated in the intelligent control system 6, and together with the millimeter-wave radar 3 and the soot monitor 4, it cooperatively regulates the operation of the follow-up diversion vane 2 and the variable-frequency fan 7.
[0030] The intelligent control system 6 is connected to the millimeter-wave radar 3, the soot monitor 4, the follow-up diversion vane 2 and the variable-frequency fan 7; according to the monitoring data of the millimeter-wave radar 3, it intelligently adjusts the follow-up diversion vane 2 to track the iron water flow direction and velocity, and improves the effectiveness of soot collection; according to the soot monitoring data of the soot monitor 4, it dynamically regulates the air volume of the variable-frequency fan 7, improves the operation efficiency of the variable-frequency fan 7 and reduces the operation energy consumption.
[0031] Combined with the iron water flow direction and velocity, soot generation law and flue gas dispersion characteristics during the blast furnace tapping process, a predictive control model is established to further improve the timeliness and effectiveness of the regulation of the follow-up diversion vane and the fan.
[0032] The present invention is not limited to the above embodiments. Anyone should know that structural changes made under the inspiration of the present invention, as long as they have the same or similar technical solutions as the present invention, all fall within the protection scope of the present invention.
[0033] The technologies, shapes and structures not described in detail in the present invention are all well-known technologies.
Claims
1. An intelligent air suction system based on multi-modal perception, characterized in that, It includes an air suction hood body and a variable-frequency fan. A follow-up guide vane is installed at the inlet of the air suction hood body. The air suction hood body is connected to the variable-frequency fan through a pipeline, and an automatic dust cleaning device is installed on the pipeline. A millimeter-wave radar and multiple dust monitors are installed near the air suction hood body. The dust monitors are arranged in an array. The millimeter-wave radar and the dust monitors are connected to an intelligent control system through data lines. The intelligent control system is connected to the motor of the follow-up guide vane, the automatic dust cleaning device, and the variable-frequency fan through a control cable.
2. The intelligent air suction system based on multi-modal perception according to claim 1, characterized in that, The follow-up guide vane is installed at the inlet of the air suction hood body through a swing shaft. 1 / 2 - 2 / 3 of the follow-up guide vane is outside the inlet of the air suction hood body. The swing shaft is installed on the air suction hood body through a bearing seat, and one end of the swing shaft is connected to the motor of the follow-up guide vane.
3. The intelligent air suction system based on multimodal perception according to claim 2, wherein The swing angle range of the follow-up guide vane is ±60°.
4. The intelligent air suction system based on multimodal perception according to claim 1, characterized in that The millimeter-wave radar monitors the flow direction and velocity of the molten iron flow. The dust monitors are arranged in an array to monitor the smoke dispersion. The monitoring data of the millimeter-wave radar and the dust monitors are synchronized to the intelligent control system.
5. The intelligent air suction system based on multi-modal perception according to claim 1, wherein The automatic dust cleaning device is installed at the ash accumulation part of the pipeline of the adsorption hood main body. The automatic dust cleaning device uses a vibration motor, and the vibration motor peels off the dust attached to the inner wall of the pipeline through periodic high-frequency vibration.
6. The working method of the intelligent air suction system based on multimodal perception according to any one of claims 1-5, characterized in that, It includes the following steps: S1. The millimeter-wave radar monitors the flow direction and velocity of the molten iron flow and transmits the signal to the intelligent control system. The angle of the follow-up guide vane is controlled through the intelligent control system to make the follow-up guide vane match the flow direction and velocity of the molten iron flow. S2. Multiple dust monitors arranged in an array monitor the gradient change of the dust around the air suction hood body and transmit the signal to the intelligent control system. The air volume of the variable-frequency fan is controlled through the intelligent control system to match the dust gradient change. S3. At the same time, the intelligent control system periodically starts the automatic dust cleaning device for dust cleaning to ensure the normal operation of the system. S4. A predictive control model established by combining the flow direction and velocity of the molten iron flow, the dust generation law, and the smoke dispersion characteristics during the tapping process of the blast furnace is also integrated in the intelligent control system.