Automatic monitoring device for kiln body expansion of metallurgical furnace
By designing an automatic monitoring device, the displacement signal of the expansion of the metallurgical furnace body is converted into electrical signals, which solves the problem of difficult to monitor the expansion of the furnace body in the prior art, and improves the safety and efficiency of metallurgical production.
Patent Information
- Application Number
- CN202510440449.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2025-05-30
AI Technical Summary
Under high-temperature operating conditions, the expansion of the furnace body is difficult to monitor, resulting in high risk of structural stress concentration, furnace wall deformation, cracks and safety accidents, and low manual measurement efficiency and difficult to achieve real-time early warning.
An automatic monitoring device for expansion of metallurgical furnace furnace body is designed to convert the displacement signal of the furnace body into electrical signals through sliding varistors, real-time monitoring is achieved, and electrical interference is isolated through non-conductive materials to ensure the accuracy and reliability of monitoring results.
Real-time monitoring of metallurgical furnace body expansion is realized, manual intervention is reduced, and the safety and efficiency of metallurgical production is significantly enhanced, and structural damage and safety accidents caused by furnace body expansion is avoided.
Smart Images
Figure CN120063004A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the field of pyro-metallurgical furnace equipment, and particularly relates to an automatic monitoring device for the expansion of a metallurgical furnace kiln body. Background Art
[0002] As the core equipment in modern pyro-metallurgical processes, metallurgical furnaces operate under high-temperature conditions where the temperature inside the furnace often reaches over a thousand degrees Celsius. Such extreme thermal environments cause significant thermal expansion of the furnace body. Without effective monitoring and control measures, this unexpected expansion of the furnace body not only leads to concentrated distribution of structural stress, resulting in deformation, cracks, and even fractures in the furnace wall, but also may damage the sealing performance of the furnace body. More seriously, abnormal expansion of the furnace body may evolve into major safety accidents, directly threatening the lives of on-site operators and the stable operation of surrounding facilities.
[0003] Traditionally, monitoring of furnace body expansion mostly relies on on-site measurements regularly carried out manually. This method not only has a high labor intensity and low work efficiency, but also, due to the long measurement intervals, it is often difficult to capture the real-time dynamic changes in furnace body expansion. The monitoring accuracy is also limited by human factors and tools, making it difficult to achieve ideal results, and it is even impossible to achieve real-time early warning, which is extremely likely to affect the normal production of metallurgical furnaces. Summary of the Invention
[0004] The present invention provides an automatic monitoring device for the expansion of a metallurgical furnace kiln body to solve the problems in the production of existing metallurgical furnaces that require manual measurement, cannot capture furnace body expansion data in real time, and affect the safety and efficiency of metallurgical production.
[0005] The technical solution of the present invention is: an automatic monitoring device for the expansion of a metallurgical furnace kiln body, including a sliding rheostat fixed inside a housing. A sliding slider is provided on the sliding rheostat. One side of the sliding slider is provided with a connecting rod that abuts against the furnace shell of the metallurgical furnace. The other side of the sliding slider is provided with a reset rod, and the reset rod is connected to a spring. The other end of the spring is connected to the inner wall of the housing through a spring seat. Two connection ports on the sliding rheostat are respectively connected to the positive and negative poles of a power supply.
[0006] As a further improvement of the present invention, the housing is connected with a box cover through a hinge, and a handle is provided on the box cover.
[0007] As a further improvement of the present invention, a base is provided at the bottom of the housing.
[0008] As a further improvement of the present invention, the connecting rod and the reset rod are made of non-conductive materials, which isolate external electrical interference, ensure the purity in the process of converting the expansion displacement of the furnace shell into an electrical signal and the overall safety performance of the monitoring system, thereby improving the accuracy and reliability of the monitoring results.
[0009] Advantages of the present invention: The present invention connects the metallurgical furnace body and the sliding contact of the rheostat through a connecting rod, and at the same time connects the rheostat to the power supply to form a closed loop, enabling the rheostat to convert the displacement signal of the furnace body expansion into an electrical signal, realizing real-time monitoring of the expansion of the furnace body of the metallurgical furnace, preventing accidents through real-time monitoring, reducing manual intervention, significantly enhancing the safety and efficiency of metallurgical production, and realizing production optimization. The structure of the present invention is simple and operates stably, effectively converting the expansion displacement signal into an electrical signal proportional thereto, and then realizing online monitoring of the furnace body expansion, which has a positive effect on the daily use and maintenance of metallurgical furnaces. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a front view of the present invention; Figure 3 is a top view of the present invention; Figure 4 is a partial enlarged view of the present invention.
[0011] In the figure: 2, connecting rod; 4, box cover; 5, metallurgical furnace shell; 6, base; 7, sliding contact; 8, connection port; 9, rheostat; 10, outer shell; 12, reset rod; 13, spring; 14, spring fixing seat; 15, hinge; 16, handle. DETAILED DESCRIPTION OF THE INVENTION
[0012] The present invention will be further described in detail below with reference to the drawings and specific embodiments.
[0013] As Figures 1-4 shown, an automatic monitoring device for the expansion of the furnace body of a metallurgical furnace includes a rheostat 9 fixed in an outer shell 10. A sliding contact 7 is provided on the rheostat 9. One side of the sliding contact 7 is provided with a connecting rod 2, and the connecting rod 2 abuts against the metallurgical furnace shell 5. The other side of the sliding contact 7 is provided with a reset rod 12. The reset rod 12 is connected to a spring 13, and the other end of the spring 13 is connected to the inner wall of the outer shell 10 through a spring seat 14. Two connection ports 8 on the rheostat 9 are respectively connected to the positive and negative poles of the power supply.
[0014] The outer shell 10 is connected to a box cover 4 through a hinge 15, and a handle 16 is provided on the box cover 4.
[0015] A base 6 is provided at the bottom of the outer shell 10.
[0016] The connecting rod 2 and the reset rod 12 are made of non-conductive materials, which isolate external electrical interference, ensure the purity in the process of converting the expansion displacement of the furnace shell into an electrical signal and the overall safety performance of the monitoring system, thereby improving the accuracy and reliability of the monitoring results.
[0017] During use, according to the positions on the metallurgical furnace where the furnace body expansion needs to be detected, the connecting rod 2 is installed beside the corresponding metallurgical furnace shell 5, and the connecting rod 2 is fixed to the sliding dial 7. By connecting the positive and negative poles of the power supply to the two connection ports 8 of the sliding rheostat 9 respectively, a closed circuit is formed, and the displacement signal of the expansion of the metallurgical furnace shell 5 is converted into an electrical signal proportional to it. At this time, by detecting the magnitude of the current in the circuit through the detection system, the on-line monitoring of the furnace body expansion can be realized, and the alarm threshold can be set in the monitoring system. According to the actual maximum limit of the furnace body expansion, the maximum value of the current in the corresponding circuit is set. When the current value in the circuit reaches the alarm threshold, the system starts to give an alarm reminder.
[0018] The other side of the sliding dial 7 is connected to the reset rod 12, and the reset rod 12 and the spring fixing seat 14 jointly fix the spring 13. When the temperature of the furnace body decreases and the expansion decreases, the elastic force of the spring 13 can reset the sliding dial 7 through the reset rod 12, so that the connecting rod 2 is always in close contact with the furnace shell 5.
Claims
1. An automatic monitoring device for expansion of a metallurgical furnace, characterized in that: The invention comprises a sliding rheostat (9), wherein the sliding rheostat (9) is fixed in a housing (10), a sliding paddle (7) is provided on the sliding rheostat (9), a connecting rod (2) is provided on one side of the sliding paddle (7), the connecting rod (2) abuts against a metallurgical furnace shell (5), a reset rod (12) is provided on the other side of the sliding paddle (7), the reset rod (12) is connected to a spring (13), the other end of the spring (13) is connected to the inner wall of the housing (10) through a spring seat (14), and two wiring ports (8) on the sliding rheostat (9) are respectively connected to the positive and negative electrodes of a power supply.
2. The automatic monitoring device for kiln expansion of a metallurgical furnace according to claim 1, characterized in that: The housing (10) is connected to a box cover (4) via a hinge (15), and a handle (16) is provided on the box cover (4).
3. The automatic monitoring device for kiln expansion of a metallurgical furnace according to claim 2, characterized in that: A base (6) is provided at the bottom of the housing (10).
4. The automatic monitoring device for kiln expansion of a metallurgical furnace according to any one of claims 1 to 3, characterized in that: The connecting rod (2) and the reset rod (12) are made of non-conductive material.