Blast furnace top ring shooting device

Abstract

This utility model relates to the field of metallurgical engineering equipment technology and discloses a blast furnace top annular imaging device, including an annular track, an electric sliding table, a rotating device, an infrared camera, and a laser emitter. The annular track is installed on the internal circumferential structure of the blast furnace top, the electric sliding table is slidably mounted on the annular track, and the rotating device is fixed on the electric sliding table. The infrared camera and the laser emitter are arranged side by side on the front end face of the rotating device. The rotating device drives the infrared camera to rotate up and down within a vertical range of ±30°. The infrared camera is used to capture thermal imaging images of the blast furnace interior, and the laser emitter is used to assist in positioning and ranging. The double annular track structure, combined with the electric sliding table and the multi-angle rotating device, enables 360° real-time monitoring of the blast furnace interior. The combined imaging of infrared imaging and laser scanning improves image resolution and depth recognition capabilities. It reduces the number of monitoring devices, simplifies the deployment system, reduces costs, and improves maintenance convenience.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical engineering equipment technology, specifically to a blast furnace top annular imaging device. Background Technology

[0002] In the blast furnace ironmaking process, the airflow, burden distribution, and chute operation have a crucial impact on smelting efficiency and product quality. However, due to the enclosed space, high temperature, dust, and harsh environment inside the blast furnace, traditional static monitoring equipment suffers from limited monitoring range, numerous blind spots, and poor flexibility, making it difficult to accurately obtain the internal operating status of the blast furnace. Especially in the detection of the charging process and chute wear, current technologies rely heavily on deploying multiple camera devices, which is not only complex to install and difficult to maintain but also increases operating costs.

[0003] There is currently a lack of a blast furnace internal dynamic imaging device with a reasonable structure, wide monitoring range, and stable operation, which can realize real-time monitoring of the furnace from multiple angles and with full coverage, especially stable operation in high temperature and dusty environments, in order to meet the needs of modern metallurgical enterprises for efficient and accurate monitoring methods. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a blast furnace top annular imaging device that can achieve real-time monitoring of the furnace from multiple angles and with full coverage, especially stable operation in high-temperature and dusty environments, in order to meet the needs of modern metallurgical enterprises for efficient and accurate monitoring methods.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A blast furnace top annular imaging device includes an annular track, an electric sliding table, a rotating device, an infrared camera, and a laser emitter. The annular track is installed on the internal circumferential structure of the blast furnace top. The electric sliding table is slidably mounted on the annular track. The rotating device is fixed on the electric sliding table. The infrared camera and laser emitter are arranged side by side on the front end face of the rotating device. The rotating device's drive motor has a maximum speed of 60 rpm and is equipped with an external heat dissipation device to ensure stable operation over a long period of time. The rotating device drives the infrared camera to rotate up and down within a vertical range of ±30°. The infrared camera is used to capture thermal imaging images of the blast furnace interior, and the laser emitter is used to assist in positioning and ranging.

[0007] In this utility model, preferably, it also includes computer equipment, power supply control system, and cables and signal transmission harnesses. The computer equipment and power supply control system are both installed outside the blast furnace body. The computer equipment is connected to an infrared camera and a laser transmitter through cables and signal transmission harnesses to receive images and laser data collected by the infrared camera and laser transmitter.

[0008] In this invention, preferably, a fixing bracket is also included, which is disposed on the main structure of the furnace top and is used to fix the cable and signal transmission harness.

[0009] In this utility model, preferably, the annular track includes an upper track and a lower track, which are respectively fixed on the inner side wall of the blast furnace. Each of the upper and lower tracks is equipped with a set of electric sliding tables, and the two sets of electric sliding tables operate independently.

[0010] In this utility model, preferably, the upper track has a radius of 4.5 meters and is fixed at a distance of 3 meters from the highest point of the blast furnace top, and the lower track has a radius of 5 meters and is fixed at a distance of 4 meters from the highest point of the blast furnace top.

[0011] In this utility model, preferably, the upper and lower tracks are made of high-temperature resistant alloy steel with a thickness of 15-20mm, and the surface is provided with a high-temperature resistant anti-corrosion coating with a thickness of 1-2mm to enhance its weather resistance and structural stability. The outer side is connected to the furnace top wall through a high-temperature resistant insulating fastener.

[0012] In this utility model, preferably, the bottom of the electric slide table is equipped with high-temperature rollers to ensure stable operation in the complex and high-temperature environment of the blast furnace top. The electric slide table is driven by a stepper motor, and the outer shell of the electric slide table is made of stainless steel and ceramic composite material, which can withstand temperatures up to 800℃. The slide table length is 300-400mm, and it is equipped with a variable frequency stepper motor and a position encoder. The motor power is 750W, which has good load capacity and high temperature adaptability, and realizes automatic rotation and positioning on the circular track.

[0013] In this invention, preferably, the infrared camera is connected to the rotating device via a universal joint structure, and the rotation angle of the universal joint structure is controlled by a high-precision servo motor connected to it, which enables the infrared camera to adjust its angle within a vertical range of ±30°.

[0014] In this utility model, preferably, the fixed bracket includes a bracket and a wire trough. The bracket is fixed to the inner side wall of the blast furnace body, and the wire trough is fixed to the bracket. The bracket and the wire trough are made of a heat-resistant and electromagnetic interference-resistant composite coating material.

[0015] In this invention, preferably, the infrared camera is covered with a double-layer dust cover and a heat-resistant protective shell to effectively prevent the impact of high-temperature smoke and dust on image quality and ensure its long-term stable operation in harsh environments. The lens of the infrared camera is pointed towards the center area of ​​the blast furnace, and it adopts an industrial-grade uncooled infrared thermal imaging module with a resolution of not less than 640×512 and a temperature measurement range of 200~1500℃, enabling real-time image acquisition and temperature field reconstruction.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] The device of this utility model adopts a double-ring track structure, combined with an electric sliding table and a multi-angle rotating device, which can realize 360° real-time monitoring of the inside of the blast furnace.

[0018] By combining infrared imaging and laser scanning, image resolution and depth recognition capabilities are improved.

[0019] Reduce the number of monitoring devices, simplify the deployment system, lower costs, and improve maintenance convenience. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a blast furnace top annular imaging device according to the present invention.

[0021] In the diagram: 1-circular track, 2-electric slide, 3-rotating device, 4-infrared camera, 5-laser emitter, 6-fixed bracket, 7-computer equipment, 8-power supply control system, 9-cable and signal transmission harness. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] Please also see Figure 1 This utility model provides a preferred embodiment of a blast furnace top annular imaging device. It features a stable structure, convenient installation, and excellent high-temperature resistance and corrosion resistance. It enables real-time monitoring of the blast furnace interior from multiple angles and over a wide range, effectively reducing blind spots and improving monitoring efficiency and data acquisition accuracy. Specifically, its structure includes an annular track 1, an electric sliding table 2, a rotating device 3, an infrared camera 4, and a laser emitter 5. The annular track 1 is installed on the internal circumferential structure of the blast furnace top. The electric sliding table is slidably mounted on the annular track 1. The rotating device 3 is fixed to the electric sliding table 2. The infrared camera 4 and the laser emitter 5 are arranged side-by-side on the front end face of the rotating device 3. The rotating device 3 drives the infrared camera 4 to rotate vertically within a range of ±30°. The infrared camera 4 is used to capture thermal imaging images of the blast furnace interior, and the laser emitter 5 is used for auxiliary positioning and ranging.

[0026] Specifically, the annular track 1 is located on the outer edge of the central area of ​​the furnace top, with a diameter of 4.5m. It is made of high-temperature resistant alloy steel with a thickness of 15-20mm, and its outer side is connected to the furnace top wall through high-temperature resistant insulating fasteners. The bottom of the electric slide table 2 slides in conjunction with the annular track. The outer shell of the electric slide table 2 is made of stainless steel and ceramic composite material, with a temperature resistance of up to 800℃. The slide table is 300-400mm long and equipped with a variable frequency motor and position encoder to achieve automatic rotation and positioning on the annular track. The rotating device 3 is installed on the electric slide table 2 with a vertical rotation angle range of ±30°. The drive motor has a maximum speed of 60rpm and is equipped with an external heat dissipation device to ensure stable operation over a long period of time. The infrared camera 4 is connected to the front end of the rotating device 3, with the lens facing the central area of ​​the blast furnace. It adopts an industrial-grade uncooled infrared thermal imaging module with a resolution of not less than 640×512 and a temperature measurement range of 200-1500℃, enabling real-time image acquisition and temperature field reconstruction. The laser emitter 5 and the infrared camera 4 are installed side by side. The laser type is 905nm pulsed laser, the ranging range is 0.5~15m, and the measurement accuracy is ±5mm. It is used to monitor the morphology of the furnace charge surface and the central airflow trajectory.

[0027] In this embodiment, the system also includes a computer device 7, a power supply control system 8, and cables and signal transmission harnesses 9. Both the computer device 7 and the power supply control system 8 are located outside the blast furnace body. The computer device 7 is connected to an infrared camera 4 and a laser transmitter 5 via cables and signal transmission harnesses 9, and is used to receive images and laser data collected by the infrared camera 4 and the laser transmitter 5. The computer device 7 is located in a remote control room at the top of the furnace, communicating in real time with the camera and laser transmitter to perform image analysis, temperature processing, and data storage functions. The power supply control system 8 includes high-temperature protective cables, a power distribution module, and a UPS power supply, ensuring continuous power supply to the entire system in high-temperature, high-dust, and high-disturbance environments. The cables and signal transmission harnesses 9 are encapsulated in a flexible metal protective sleeve, internally containing power lines, image transmission lines, and control signal lines, and externally covered with three layers of protective coating to adapt to the high-temperature and airflow disturbance environment of the blast furnace.

[0028] In this embodiment, a fixed bracket 6 is included, which is disposed on the main structure of the furnace top and is used to fix the cable and signal transmission harness 9. The fixed bracket 6 is a high-strength alloy steel structure, and the base is connected to the furnace top structure by bolts. It has anti-vibration and vibration reduction functions and is suitable for various blast furnace platform layouts.

[0029] In this embodiment, the annular track 1 is securely installed inside the blast furnace top using a fixed bracket 6. The electric sliding table 2 moves in a circular motion along the track 1, driving the rotating device 3, infrared camera 4, and laser emitter 5 to operate along a preset path, achieving full-coverage scanning and imaging of the central area of ​​the blast furnace and the surrounding material surface. The infrared camera 4 acquires real-time images of the heat distribution inside the blast furnace, reflecting the central gas flow state and the temperature field distribution of the material surface. The laser emitter 5 employs a multi-beam laser scanning structure, possessing a wide emission angle and high coverage, enabling real-time auxiliary ranging and target identification at multiple angles inside the blast furnace. This allows for synchronized spatial ranging with the infrared camera 4, generating three-dimensional contour data of the material surface inside the blast furnace. The acquired images and ranging data are transmitted via cables and signal transmission harnesses 9 to a computer device 7 for fusion processing and real-time analysis, ultimately forming a complete furnace top monitoring map. A power supply control system 8 provides stable power to each component and monitors the voltage and current status in real time.

[0030] In this embodiment, the annular track 1 includes an upper track and a lower track, which are respectively fixed on the inner side wall of the blast furnace. Each of the upper and lower tracks is equipped with a set of electric sliding tables 2, and the two sets of electric sliding tables 2 operate independently.

[0031] In this embodiment, the upper track has a radius of 4.5 meters and is fixed at a distance of 3 meters from the highest point of the blast furnace top, and the lower track has a radius of 5 meters and is fixed at a distance of 4 meters from the highest point of the blast furnace top.

[0032] In this embodiment, the upper and lower tracks are made of high-temperature resistant alloy steel with a thickness of 15mm, and the surface is provided with a high-temperature resistant anti-corrosion coating with a thickness of 1-2mm to enhance their weather resistance and structural stability.

[0033] In this embodiment, the electric slide table 2 is made of high-temperature resistant alloy material and is equipped with high-temperature rollers at the bottom to ensure stable operation in the complex and high-temperature environment of the blast furnace top. The electric slide table 2 is driven by a stepper motor with a power of 750W, which has good load capacity and high-temperature adaptability. The rotation speed of the slide table can be autonomously adjusted within the range of 0.1m / s to 0.3m / s according to actual monitoring needs.

[0034] In this embodiment, the infrared camera 4 is connected to the rotating device 3 via a universal joint structure. The rotation angle of the universal joint structure is controlled by a high-precision servo motor connected to it, which can realize the angle adjustment of the infrared camera within a vertical range of ±30°.

[0035] In this embodiment, the fixed bracket 6 includes a bracket and a wire trough. The bracket is fixed to the inner side wall of the blast furnace, and the wire trough is fixed to the bracket. The bracket and the wire trough are covered with a heat-resistant and electromagnetic interference-resistant composite coating material.

[0036] In this embodiment, the infrared camera 4 is an industrial-grade thermal imaging device with high-temperature imaging capabilities. It is covered with a double-layer dust cover and a heat-resistant protective shell, which can effectively prevent the impact of high-temperature smoke and dust on the imaging quality and ensure its long-term stable operation in harsh environments.

[0037] In this embodiment, the blast furnace top annular imaging device rotates omnidirectionally along the annular track 1 using an electric sliding table 2. During operation, the rotating device 3 drives the electric sliding table 2 to move along the annular track 1, allowing the infrared camera 4 and laser emitter 5 to monitor the thermal imaging and gas flow distribution inside the blast furnace in real time at preset angles and positions. After each imaging session, the device transmits the collected data to the computer device 7 for processing. The computer device 7 generates real-time monitoring results of images and gas flow distribution based on data analysis, providing information for operators to analyze and adjust the furnace's internal condition. The fixed support 6 stabilizes all components, ensuring the stability of the device inside the blast furnace. The power supply control system 8 is responsible for supplying power to the device and ensuring stable operation in high-temperature, high-dust environments. The cables and signal transmission harnesses 9 are responsible for transmitting the captured data to the control center in a timely manner, ensuring the real-time performance and accuracy of the monitoring data.

[0038] The above description is a detailed description of the preferred embodiments of the present utility model. However, the embodiments are not intended to limit the scope of the patent application of the present utility model. All equivalent changes or modifications made under the technical spirit of the present utility model should fall within the patent scope covered by the present utility model.

Claims

1. A blast furnace top ring photographing device, characterized by, The device includes a ring track (1), an electric sliding table (2), a rotating device (3), an infrared camera (4), and a laser emitter (5). The ring track (1) is installed on the inner circumferential structure of the blast furnace top. The electric sliding table is slidably set on the ring track (1). The rotating device (3) is fixed on the electric sliding table (2). The infrared camera (4) and the laser emitter (5) are arranged side by side on the front end face of the rotating device (3). The rotating device (3) drives the infrared camera (4) to rotate up and down within a vertical range of ±30°. The infrared camera (4) is used to capture thermal imaging images inside the blast furnace. The laser emitter (5) is used to assist in positioning and ranging.

2. The ring camera for a blast furnace top according to claim 1, characterized in that, It also includes computer equipment (7), power supply control system (8) and cable and signal transmission harness (9). The computer equipment (7) and power supply control system (8) are both located outside the blast furnace body. The computer equipment (7) is connected to the infrared camera (4) and laser transmitter (5) through the cable and signal transmission harness (9) to receive the images and laser data collected by the infrared camera (4) and laser transmitter (5).

3. The blast furnace top annular imaging device according to claim 2, characterized in that, It also includes a fixing bracket (6), which is set on the main structure of the furnace top and is used to fix the cable and signal transmission harness (9).

4. The blast furnace top annular imaging device according to claim 1, characterized in that, The annular track (1) includes an upper track and a lower track, which are respectively fixed on the inner side wall of the blast furnace. Each of the upper and lower tracks is equipped with an electric sliding table (2), and the two electric sliding tables (2) operate independently.

5. The blast furnace top annular imaging device according to claim 4, characterized in that, The upper track has a radius of 4.5 meters and is fixed at a distance of 3 meters from the highest point of the blast furnace top. The lower track has a radius of 5 meters and is fixed at a distance of 4 meters from the highest point of the blast furnace top.

6. The blast furnace top annular imaging device according to claim 4, characterized in that, The upper and lower tracks are made of high-temperature resistant alloy steel with a thickness of 15mm, and the surface is coated with a high-temperature resistant and corrosion-resistant coating with a thickness of 1-2mm.

7. The blast furnace top annular imaging device according to claim 1, characterized in that, The electric slide (2) is equipped with high-temperature rollers at its bottom and is driven by a stepper motor.

8. The blast furnace top annular imaging device according to claim 1, characterized in that, The infrared camera (4) is connected to the rotating device (3) via a universal joint structure, and the rotation angle of the universal joint structure is controlled by the high-precision servo motor connected to it.

9. A blast furnace top annular imaging device according to claim 3, characterized in that, The fixed support (6) includes a support and a wire trough. The support is fixed on the inner side wall of the blast furnace, and the wire trough is fixed on the support. The support and the wire trough are covered with a heat-resistant and electromagnetic interference-resistant composite coating material.

10. A blast furnace top annular imaging device according to claim 1, characterized in that, The infrared camera (4) is covered with a double-layer dust cover and a heat-resistant protective shell.

Images