The Roots blower used in steel mills is an important equipment mainly used for gas transportation and pressurization systems. The following is a detailed introduction to the Roots blower used in steel mills:
1、 Definition and Principle
Roots blower belongs to positive displacement blower, and its working principle is to use two blade shaped rotors to compress and transport gas through relative motion in the cylinder. This type of fan has a simple structure, is easy to manufacture, and is widely used in multiple fields, including steel mills.
2、 Structure and Composition
The Roots blower is mainly composed of five parts: casing, wall panel, impeller, oil tank, and muffler. Among them, the casing plays a supporting and fixing role; The wall panel connects the casing and impeller, supporting the rotation of the impeller and providing end face sealing effect; The impeller is the rotating part of a Roots blower, usually using a three bladed rotor structure to reduce exhaust pulsation and noise, and improve operational stability; The oil tank is used to store lubricating oil, lubricate gears and bearings; Mufflers are used to reduce the noise generated by airflow pulsation during the inlet and outlet of fans.
3、 Characteristics and advantages
1. Energy saving: The Roots blower adopts a three bladed rotor structure, which has high volumetric efficiency, can operate continuously for a long time, and its performance remains unchanged for a long time.
2. Low noise: The three blade rotor structure and reasonable design of the inlet and outlet ports inside the casing result in low vibration and noise of the fan.
3. Compact structure: Roots blower has a compact structure and flexible installation methods, which can adapt to the needs of different occasions.
4. Wide applicability: Suitable for gas delivery and pressurization systems in low-pressure environments, and can also be used as vacuum pumps, etc.
4、 Selection principle
When selecting Roots blowers in steel mills, the following factors need to be considered:
1. Airflow and pressure: Select appropriate Roots blower models and specifications based on the operating conditions of the steel plant system to ensure that they can meet the system's requirements during normal operation. At the same time, it is necessary to consider the fluctuations and changes in the system and choose appropriate coefficients.
2. Working temperature and medium: Select the appropriate Roots blower material and sealing form based on the medium, temperature, and properties processed by the steel plant. For example, for high-temperature or corrosive media, it is necessary to choose materials and sealing forms that are resistant to high temperatures or corrosion.
3. Noise and vibration: In situations such as steel mills where there are restrictions on environmental noise, it is necessary to choose Roots blowers that comply with relevant standards and regulations to reduce the impact of noise and vibration on the surrounding environment.
5、 Price and Supplier
The price of Roots blowers used by steel mills varies depending on factors such as model, specifications, and materials. Generally speaking, the price of a small Roots blower ranges from several thousand yuan, a medium-sized Roots blower ranges from several thousand yuan to tens of thousands of yuan, and a large Roots blower may cost tens of thousands of yuan. In the market, there are multiple suppliers providing Roots blowers for steel mills, such as Changsheng Machinery. These suppliers typically offer a variety of models and specifications of Roots blowers to meet the needs of different steel mills.
6、 Maintenance and upkeep
To ensure the normal operation and extend the service life of Roots blowers used in steel mills, regular maintenance and upkeep are necessary. Specifically, it includes:
1. Regular inspection: Check the fastening condition of each part and whether the positioning pin is loose; Check for oil leakage, scaling, rust, and peeling inside the fan body.
2. Lubrication and heat dissipation: Pay attention to the quality and lubrication condition of the lubricating oil, and regularly replace the lubricating oil; Check if the heat dissipation is normal and ensure that the fan operates at a suitable temperature.
3. Cleaning and maintenance: Regularly clean the dust and dirt inside and outside the fan; Inspect and replace the vulnerable parts of the fan.
In summary, the Roots blower used by steel mills is an energy-saving and low-noise gas conveying equipment. When selecting, factors such as air volume and pressure, working temperature and medium, noise and vibration need to be considered; In terms of price, there may be differences due to different models and specifications; At the same time, regular maintenance and upkeep are necessary to ensure the normal operation and prolong the service life of the fan.
