Air hole three-way automatic monitoring system with limiting function

By designing an automatic monitoring system for the vent tee with limit switches, and using sensors and a PLC controller to monitor the vent status, the system solves the problems of vent blockage and the inability to provide real-time feedback on the opening and closing status, thereby improving the automation level of the smelting furnace.

CN224151454UActive Publication Date: 2026-04-21CHINA NO 15 METALLURGICAL CONSTR GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-22
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

In the pyrometallurgical process, the blockage and opening/closing status of the tuyeres cannot be fed back in real time, affecting the automation process of the side-blown smelting furnace.

Method used

Design an automatic monitoring system for the air vent tee with limit switch. The system uses sensors to monitor the sealing ball blocking the blow-off channel, uses a PLC controller and display to reflect the air vent status, and can be remotely monitored in real time.

Benefits of technology

It enables real-time monitoring and precise adjustment of the blast eye status, improves the automation level of the side-blown smelting furnace, and simplifies the operation process.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224151454U_ABST
Patent Text Reader

Abstract

The utility model relates to an air hole three-way automatic monitoring system with a limiting function, which comprises a plurality of three-way pipes, each three-way pipe comprises a straight-through pipe, a blocking hole channel is arranged in the straight-through pipe, an inclined-upward inclined-through pipe is arranged in the middle of the straight-through pipe, and a blowing hole channel communicated with the blocking hole channel is arranged in the inclined-through pipe; a sealing part is arranged between the blocking hole channel and the blowing hole channel, a sensor is arranged on the sealing part, the sensor is in signal connection with a monitoring part, and the monitoring part is used for monitoring whether the blowing hole channel is closed or not. The device is simple in structure and convenient to operate; the sensor senses the sealing ball and transmits information to the PLC, and the information is directly reflected on the display through the PLC, so that which blowing pipelines in the smelting furnace are communicated and which blowing pipelines in the smelting furnace are blocked are displayed, and an operator can conveniently and accurately control the condition and carry out accurate and effective adjustment.
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Description

Technical Field

[0001] This utility model relates to the technical field of blast furnace tuyere tee pipe, specifically an automatic monitoring system for blast furnace tuyere tee pipe with limit switch. Background Technology

[0002] In pyrometallurgical processes, oxygen-enriched air is often injected into the furnace to accelerate the reaction rate and improve smelting efficiency. Therefore, a large number of side-blown blasting nozzles are evenly distributed along the length of the furnace on both sides of the side-blown smelting furnace. During production, the reaction inside the furnace is intense, and with a large number of nozzles, blockages frequently occur in the blast holes, requiring manual clearing with a chisel. Furthermore, during the smelting process, the opening and closing of the blast holes is adjusted according to production process requirements to control the airflow and achieve the desired blowing effect. The opening and closing of the blast holes is achieved by inserting and removing the chisel. Because the operating states of the numerous blast holes vary significantly and cannot be monitored in real time, the automation process of side-blown smelting furnaces is severely hampered.

[0003] To address the aforementioned issues, an automatic monitoring system for wind eye tees with limit switches is proposed. Summary of the Invention

[0004] To address the aforementioned issues, an automatic monitoring system for wind tunnel tees with limit switches is provided.

[0005] The specific solution of this utility model is: an automatic monitoring system for wind eye tee joints with limiting position, comprising: several tee pipes, each tee pipe including: a straight pipe, the straight pipe having a sealing channel for inserting a drill bit for sealing; an inclined pipe with an upward slope in the middle of the straight pipe, the inclined pipe having a blowhole communicating with the sealing channel; a sealing part between the sealing channel and the blowhole, the sealing part including: a sealing guide groove, one end of the sealing guide groove communicating with the sealing channel and the other end communicating with the blowhole, a sealing ball being provided in the sealing guide groove, a sensor being provided at the connection between the sealing guide groove and the blowhole, the sensor being signal-connected to a monitoring unit, the monitoring unit being used to monitor whether the blowhole is closed.

[0006] Furthermore, the monitoring unit includes a PLC controller, the input terminal of which is connected to the sensor signal, and the output terminal of which is connected to a display, which is used to display the status of the blow-through channel blockage received by the PLC controller from the sensor.

[0007] Furthermore, the straight pipe is provided with a flange plate on the side near the metallurgical furnace, and the flange plate is provided with connection holes.

[0008] Furthermore, the diameter of the sealing ball is the same as the diameter of the jet channel.

[0009] Furthermore, the inner wall of the sealing guide groove is provided with a wear-resistant coating, which is made by ceramic spraying process to reduce frictional loss between the sealing ball and the sealing guide groove and extend the service life of the sealing component.

[0010] Furthermore, the PLC controller is also connected to a wireless communication module, which is used to send data on the blockage of the jet nozzles to a remote terminal to achieve remote real-time monitoring.

[0011] The operating method of this utility model is as follows: There are several T-shaped pipes on the smelting furnace. A drill rod is inserted into the sealing channel from the outside, and a sealing ball is squeezed into the injection channel through the sealing guide groove, thereby blocking the injection channel. At this time, the sensors of some T-shaped pipes sense the sealing ball, indicating that the injection channel has been blocked, and transmit the information to the PLC controller. The PLC controller directly reflects this on the display, thereby showing which injection pipes in the smelting furnace are open and which are blocked, so that the operator can accurately control the status and make precise and effective adjustments.

[0012] The present invention has the following advantages: The present invention has a simple structure and is easy to operate; the sensor senses the sealing ball and transmits the information to the PLC controller, which directly reflects it on the display, thereby showing which blowing pipes in the smelting furnace are open and which are blocked, so that the operator can accurately control the status and make precise and effective adjustments. Attached Figure Description

[0013] Figure 1 This is a schematic diagram illustrating the principle of this utility model;

[0014] Figure 2 A three-dimensional structural diagram of the three-way pipe, sensor, and monitoring unit. Figure 1 ;

[0015] Figure 3 A three-dimensional structural diagram of the three-way pipe, sensor, and monitoring unit. Figure 2 ;

[0016] In the diagram: 1. T-junction; 101. Straight pipe; 102. Sealing channel; 103. Inclined pipe; 104. Pulse jet channel; 105. Sealing guide groove; 106. Sealing ball; 107. Drill rod; 2. Sensor; 3. Monitoring unit; 301. PLC controller; 302. Display; 303. Wireless communication module; 304. Remote terminal. Detailed Implementation

[0017] Please refer to Figures 1-3, An automatic monitoring system for wind eye tee joints with limiting position includes: several tee pipes 1, each tee pipe 1 including: a straight pipe 101, the straight pipe 101 having a sealing channel 102 for inserting a drill rod 107 for sealing; an inclined pipe 103 with an upward slope in the middle of the straight pipe 101, the inclined pipe 103 having a blow-through channel 104 communicating with the sealing channel 102; a sealing part is provided between the sealing channel 102 and the blow-through channel 104, the sealing part including: a sealing guide groove 105, one end of the sealing guide groove 105 communicating with the sealing channel 102 and the other end communicating with the blow-through channel 104, a sealing ball 106 being provided in the sealing guide groove 105, a sensor 2 being provided at the connection between the sealing guide groove 105 and the blow-through channel 104, the sensor 2 being signal-connected to a monitoring unit 3, the monitoring unit 3 being used to monitor whether the blow-through channel 104 is closed.

[0018] In this embodiment, the monitoring unit 3 includes a PLC controller 301. The input terminal of the PLC controller 301 is connected to the sensor 2. The output terminal of the PLC controller 301 is connected to a display 302. The display 302 is used to display the blockage status of the blow-through channel 104 received by the PLC controller 301 from the sensor 2.

[0019] In this embodiment, the straight pipe 101 is provided with a flange plate on the side near the metallurgical furnace, and the flange plate is provided with a connection hole.

[0020] In this embodiment, the diameter of the sealing ball 106 is the same as the diameter of the jet channel 104.

[0021] In this embodiment, the inner wall of the sealing guide groove 105 is provided with a wear-resistant coating, which is made by ceramic spraying process to reduce frictional loss between the sealing ball 106 and the sealing guide groove 105 and extend the service life of the sealing component.

[0022] In this embodiment, the PLC controller is also connected to a wireless communication module 303, which is used to send data on the blockage of the blow-through channel 104 to a remote terminal 304 to achieve remote real-time monitoring.

[0023] The operation method of this utility model is as follows: There are several three-way pipes 1 on the smelting furnace. A rod 107 is inserted into the sealing channel 102 from the outside. A sealing ball 106 is squeezed into the injection channel 104 through the sealing guide groove 105, thereby blocking the injection channel 104. At this time, the sensor 2 of some three-way pipes 1 senses the sealing ball 106, indicating that the injection channel 104 has been blocked. The information is transmitted to the PLC controller 301, which directly reflects it on the display 302, thereby showing which injection pipes in the smelting furnace are open and which are blocked. This allows the operator to accurately control the status and make precise and effective adjustments.

[0024] The present invention has the following advantages: The present invention has a simple structure and is easy to operate; the sensor 2 senses the sealing ball 106 and transmits the information to the PLC controller 301, which directly reflects the information on the display 302, thereby showing which blowing pipes in the smelting furnace are open and which are blocked, so that the operator can accurately control the status and make precise and effective adjustments.

Claims

1. A wind eye three-way automatic monitoring system with a limit, characterized in that: include: A plurality of tee tubes, each tee tube comprising: a straight tube having a sealing channel within it for inserting a drill bit for sealing; an inclined tube extending upwards in the middle of the straight tube, the inclined tube having a blow-through channel communicating with the sealing channel; a sealing part being provided between the sealing channel and the blow-through channel, the sealing part comprising: a sealing guide groove having one end communicating with the sealing channel and the other end communicating with the blow-through channel, a sealing ball being provided within the sealing guide groove; a sensor being provided at the connection point between the sealing guide groove and the blow-through channel, the sensor being signal-connected to a monitoring unit for monitoring whether the blow-through channel is sealed.

2. The automatic monitoring system of wind eye tee with limit according to claim 1, characterized in that: The monitoring unit includes a PLC controller, the input terminal of which is connected to the sensor signal, and the output terminal of which is connected to a display. The display is used to show the status of the blow-through channel blockage received by the PLC controller from the sensor. ​ 3. The wind eye three-way automatic monitoring system with a limiting device according to claim 2, characterized in that: The straight pipe is provided with a flange plate on the side near the metallurgical furnace, and the flange plate is provided with connection holes. ​ 4. The wind eye tee automatic monitoring system with a limiting device according to claim 3, characterized in that: The diameter of the sealing ball is the same as the diameter of the jet channel.

5. The wind eye three-way automatic monitoring system with a limiting device according to claim 4, characterized in that: The inner wall of the sealing guide groove is provided with a wear-resistant coating, which is made by ceramic spraying process. This coating is used to reduce frictional loss between the sealing ball and the sealing guide groove and extend the service life of the sealing components.

6. The wind eye tee automatic monitoring system with a limiting device according to claim 1, characterized in that: The PLC controller is also connected to a wireless communication module, which is used to send data on the blockage of the jetting orifice to a remote terminal to achieve remote real-time monitoring.