Automatic monitoring device for kiln body expansion of metallurgical furnace
By using a sliding rheostat and a non-conductive connecting rod to form a closed loop in the metallurgical furnace, the furnace expansion is converted into an electrical signal, solving the problem of not being able to monitor furnace expansion in real time in existing technologies, and improving the safety and efficiency of metallurgical production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-03-24
AI Technical Summary
The existing monitoring of furnace body expansion in metallurgical furnaces relies on manual periodic measurements, which cannot achieve real-time monitoring. This results in low monitoring accuracy and efficiency, and makes it difficult to prevent accidents, affecting production safety and efficiency.
A closed loop is formed by a sliding rheostat, a non-conductive connecting rod, and a reset rod, which converts the expansion of the furnace body into an electrical signal to achieve real-time monitoring and early warning.
It enables real-time monitoring of the expansion of metallurgical furnace bodies, improving the accuracy and safety of monitoring, reducing manual intervention, and enhancing production safety and efficiency.
Smart Images
Figure CN224034414U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to pyrometallurgical furnace kiln equipment field, concretely relates to a kiln furnace body expansion automatic monitoring device of metallurgical furnace. BACKGROUND
[0002] As the core equipment in modern pyrometallurgical process, metallurgical furnace kiln is often operated under high temperature condition, and the temperature in the furnace is often as high as thousands of degrees Celsius. This extreme thermal environment promotes the significant thermal expansion of the furnace body. If effective monitoring and control measures are not taken, the unexpected expansion of the furnace body will not only cause the concentrated distribution of structural stress, resulting in deformation, cracks and even rupture of the furnace wall, but also damage the sealing performance of the furnace body. More seriously, the abnormal expansion of the furnace body may also evolve into a major safety accident, directly threatening the life safety of the on-site operators and the stable operation of the surrounding facilities.
[0003] Traditionally, the monitoring of the expansion of the furnace body mostly relies on the on-site measurement by manual periodic measurement. This method not only has high labor intensity and low work efficiency, but also is difficult to capture the real-time dynamic changes of the expansion of the furnace body due to the long measurement interval time. The monitoring accuracy is also limited by human factors and tools, and it is difficult to achieve the ideal effect. Moreover, real-time early warning cannot be realized, which easily affects the normal production of the metallurgical furnace. SUMMARY
[0004] The utility model provides a kind of kiln furnace body expansion automatic monitoring device of metallurgical furnace to solve the problem that manual measurement is needed in the production of existing metallurgical furnace, and the expansion data of furnace body cannot be captured in real time, which affects the safety and efficiency of metallurgical production.
[0005] The technical scheme of the utility model is as follows: a kind of kiln furnace body expansion automatic monitoring device of metallurgical furnace, including sliding rheostat, sliding rheostat is fixed in shell, sliding rheostat is equipped with sliding paddle, one side of sliding paddle is equipped with connecting rod, connecting rod is opposite with furnace shell of metallurgical furnace, the other side of sliding paddle is equipped with reset rod, reset rod is connected with spring, the other end of spring is connected in the inner wall of shell by spring seat, two wire ports on sliding rheostat are respectively connected with the positive and negative poles of power supply.
[0006] As a further improvement of the utility model, the shell 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 utility model, a base is provided at the bottom of the shell.
[0008] As a further improvement of the utility model, the connecting rod and the reset rod are made of non-conductive material, which isolates external electrical interference and ensures the purity in the process of converting the expansion displacement of the furnace shell into electrical signals and the overall safety performance of the monitoring system, thereby improving the accuracy and reliability of the monitoring results.
[0009] The utility model discloses the beneficial effect has: the utility model discloses through connecting rod connects metallurgical furnace furnace body and slide rheostat slide switch piece, simultaneously with the power connection of slide rheostat, forms closed loop, makes slide rheostat with the displacement signal of furnace body expansion conversion electric signal, realizes the real -time monitoring of metallurgical furnace's kiln furnace body expansion, prevents the accident through real -time monitoring and reduces manual intervention, the safety and efficiency of metallurgical production are enhanced obviously, realizes production optimization. The utility model discloses simple structure, stable operation, effectively with the displacement signal of expansion conversion electric signal that is directly proportional to it, and then realizes the on -line monitoring of furnace body expansion, has positive effect to the daily use and maintenance of having metallurgical furnace. BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1 It is the structural schematic diagram of the utility model;
[0011] Figure 2 It is the front view of the utility model;
[0012] Figure 3 It is the plan view of the utility model;
[0013] Figure 4 It is the local enlarged view of the utility model.
[0014] In the drawing: 2, connecting rod;4, box cover;5, metallurgical furnace shell;6, base;7, slide switch piece;8, wiring port;9, slide rheostat;10, shell;12, reset rod;13, spring;14, spring fixed base;15, hinge;16, handle. DETAILED DESCRIPTION
[0015] The utility model will be further explained in detail in combination with the drawings and specific embodiment.
[0016] As Figures 1-4 Shown, a kind of metallurgical furnace's kiln furnace body expansion automatic monitoring device, including slide rheostat 9, slide rheostat 9 is fixed in shell 10, slide rheostat 9 is equipped with slide switch piece 7, one side of slide switch piece 7 is equipped with connecting rod 2, connecting rod 2 is in abutment with metallurgical furnace shell 5, the other side of slide switch piece 7 is equipped with reset rod 12, reset rod 12 is connected with spring 13, the other end of spring 13 is connected in the inner wall of shell 10 by spring seat 14, two wiring ports 8 on slide rheostat 9 are respectively connected with the positive and negative poles of power supply.
[0017] Shell 10 is connected with box cover 4 by hinge 15, box cover 4 is equipped with handle 16.
[0018] Shell 10 bottom is equipped with base 6.
[0019] The connecting rod 2 and the reset rod 12 are made of non-conductive material, which can isolate external electrical interference, ensure the purity in the process of converting the expansion displacement of the furnace shell into electrical signal and the overall safety of the monitoring system, and thus improve the accuracy and reliability of the monitoring result.
[0020] In use, the connecting rod 2 is installed beside the corresponding furnace shell 5 of the metallurgical furnace according to the position of the furnace body to be detected, and is fixed with the sliding contact 7. The positive and negative poles of the power supply are connected to the two wire ports 8 of the sliding resistor 9 respectively to form a closed loop, so as to convert the displacement signal of the expansion of the furnace shell 5 into an electrical signal proportional thereto. At this time, the current in the detection system detection loop is detected, and thus the on-line monitoring of the expansion of the furnace body is realized. The alarm threshold can be set in the monitoring system, and the maximum current value in the corresponding loop is set according to the actual limit of the expansion of the furnace body. When the current value in the loop reaches the alarm threshold, the system starts to alarm.
[0021] The other side of the sliding contact 7 is connected with the reset rod 12, and the reset rod 12 and the spring fixing seat 14 jointly fix the spring 13. When the expansion of the furnace body decreases due to the decrease of the temperature of the furnace body, the elastic force of the spring 13 can reset the sliding contact 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 kiln body expansion in a metallurgical furnace, characterized in that: The device includes a sliding rheostat (9), which is fixed inside the outer shell (10). The sliding rheostat (9) is provided with a sliding lever (7). A connecting rod (2) is provided on one side of the sliding lever (7). The connecting rod (2) abuts against the furnace shell (5) of the metallurgical furnace. A reset rod (12) is provided on the other side of the sliding lever (7). A spring (13) is connected to the reset rod (12). The other end of the spring (13) is connected to the inner wall of the outer shell (10) through a spring seat (14). The two terminals (8) on the sliding rheostat (9) are respectively connected to the positive and negative terminals of the power supply.
2. The automatic monitoring device for kiln body expansion of a metallurgical furnace according to claim 1, characterized in that: The outer shell (10) is connected to a lid (4) via a hinge (15), and the lid (4) is provided with a handle (16).
3. The automatic monitoring device for kiln body expansion of a metallurgical furnace according to claim 2, characterized in that: The bottom of the outer casing (10) is provided with a base (6).
4. An automatic monitoring device for kiln body expansion of a metallurgical furnace according to any one of claims 1-3, characterized in that: The connecting rod (2) and the reset rod (12) are made of non-conductive materials.