Metallurgical industry solutions
The application of Odeli frequency converter in welding machines
Friction welding machines have advantages such as solid-state welding, wide process adaptability, high reliability of welding process, high dimensional accuracy of welded parts, high efficiency, and low consumption. They are now widely used in hydraulic pipe processing enterprises.
Friction welding is usually a method of rotating workpieces for welding, and the parameters that need to be controlled mainly include: rotational speed, welding time, forging pressure, friction time, and friction positioning accuracy. Among them, positioning accuracy is the main test of the key parameters of friction welding machines, which is related to welding quality and welding strength.
The Odeli frequency converter is easy to operate, easy to maintain, and has a low failure rate. It has rich I/O interfaces, a wide speed range (0-400Hz), fast response speed, and high control accuracy. It is worth noting that the Odeli frequency converter has strong overload capacity, allowing 1 minute every 5 minutes for a 150% overload. At the same time, the Odeli frequency converter also has the characteristic of high control accuracy, with an error of 0.1% of the maximum speed under closed-loop vector control. These together ensure that the friction welding machine operates 24 hours without any malfunctions!
Odeli can provide products such as frequency converters, motor management controllers, signal isolators, etc., to provide stable and optimized energy utilization and energy-saving solutions for customers in the steel and metallurgical industry, purify the power grid, reduce electricity costs, and enhance enterprise competitiveness.
The Application of Soft Starters in the Metallurgical Industry
In the metallurgical industry, squirrel cage asynchronous motors are widely used as the main power equipment for converting electrical energy into mechanical energy. However, due to the large starting current of medium and large squirrel cage asynchronous motors when starting directly, and the improvement of traditional step-down starting, there are many performance and usage limitations, making it difficult to adapt to the rapidly developing requirements of the metallurgical industry. The application of soft starter technology has just made up for the shortcomings of traditional step-down starting, successfully solving performance and usage problems such as high current, high line voltage, high power loss, and destructive impact on transmission machinery when starting squirrel cage asynchronous motors.
The promotion of soft starter technology is determined by its performance characteristics as follows:
(1) Using a microcontroller for fully digital intelligent control
(2) The starting voltage, current, and time can be flexibly determined according to the load situation
(3) By controlling the conduction angle of the thyristor, the output voltage of the soft starter is controlled to rise and fall smoothly and to make and break without any contact, achieving the minimum starting current of the motor, obtaining the best torque, and smoothly starting and stopping.
(4) Equipped with three-phase power supply phase loss protection, thyristor short circuit protection, overheating protection, startup overcurrent protection, and startup timeout protection.
(5) The parameters can be set through the keyboard and displayed on a Chinese LCD.
(6) There is no phase sequence requirement for the input three-phase power supply.
Application of Motor Protectors in the Metallurgical Industry
In the metallurgical industry, electric motors, as a type of driving machinery, have become the foundation of all power machinery. With the continuous progress of science and technology and the continuous improvement of process control, especially the requirements of automated production, there is an urgent need for motor protection and control equipment, especially the demand for low-voltage motor protection is more prominent. Thus achieving functions such as remote sensing, signal shaking, remote control, vibration adjustment, fault diagnosis, and centralized control of the production process and large machinery.
A certain steel group has always used thermal relays as overload protection and control components for electric motors in the past, but due to the limitations of component quality and technology, it can no longer meet the requirements of increasingly developing process automation. Therefore, the electrical technicians of the group have found a new type of motor protection product - motor protector through multiple investigations. By using motor protectors in low-voltage distribution systems, not only does it ensure the operation of the motor, replace thermal relays, but also utilizes advanced communication technology to achieve automation of some motor control and achieve significant economic benefits.
Application of Signal Isolator in Metallurgical Industry - Blast Furnace Control System
Blast furnace production has strict 24-hour production continuity and irreversibility, and any malfunction in a certain link will affect or even disrupt the stable operation of blast furnace production. Mild cases may result in reduced air flow, severe cases may result in cessation of air flow, disrupting the normal distribution of blast furnace gas flow, and ultimately leading to reduced production.
Capacitive coupling and inductive coupling interference can be solved through reasonable wiring, shielding grounding, physical isolation, etc.
The resistance coupling interference considers various factors, and signal isolation methods are used in each process loop to disconnect the process loop without affecting the normal transmission of process signals, in order to completely solve the grounding loop problem.
Odeli universal isolator provides reliable isolation between power input and output, with high conversion accuracy. It can be used to connect various on-site instruments and information, including switches, transmitters, thermistors, thermocouples, valve positioners, etc., effectively solving on-site interference problems in industrial control automation control systems and ensuring stable and reliable operation of the system.
The signal isolator effectively reduces the interference of the blast furnace control system, avoids equipment misoperation caused by external interference, as well as phenomena such as uncertain system signals and inaccurate conversion, and improves the stability of the system.
