Introduction to the working principle and application of Roots blower positive pressure feeding pneumatic conveying
Positive pressure pneumatic conveying Roots blower is an important industrial equipment with a working principle and wide application. The following is a detailed explanation of its working principle and application:
1、 Working principle
The working principle of positive pressure pneumatic conveying Roots blower is mainly based on the volumetric compression and conveying characteristics of Roots blower. The Roots blower rotates inside the cylinder through two interlocked rotors (usually three bladed impellers), creating a continuous gas flow between the intake and exhaust ports.
1. Rotor rotation: When the motor drives one of the rotors to rotate, the other rotor will rotate synchronously at the same speed and in the opposite direction through the action of the synchronous gear.
2. Gas inhalation: Due to the small gaps between rotors, rotors and casings, and rotors and wall panels, a negative pressure area is formed at the inlet during the rotation of the rotor. External air (or a mixture of material and air) is inhaled into the inlet chamber under atmospheric pressure.
3. Gas compression and transportation: As the rotor continues to rotate, the blades of each rotor form a sealed chamber with the wall panels and casing. This sealed chamber constantly changes its volume during rotation, thereby compressing the inhaled gas. Meanwhile, due to the interlocking of the rotors inside the exhaust chamber, the compressed gas is continuously pushed towards the exhaust port, forming a continuous airflow.
4. Positive pressure conveying: At the exhaust port, the compressed gas forms positive pressure, which can overcome the resistance in the conveying pipeline and push the material (if the material is mixed in the airflow) to the target position.
2、 Application
Positive pressure pneumatic conveying Roots blowers are widely used in multiple industrial fields, especially in situations where positive pressure conveying of materials is required. Here are some typical application scenarios:
1. Mining: Used for positive pressure conveying of bulk materials such as slag powder and coal powder. Roots blower can provide stable airflow, ensuring smooth transportation of materials in pipelines.
2. Building materials: Roots blowers are used for material transportation and mixing in processes such as cement production and gypsum product manufacturing. Its energy-saving features help reduce production costs.
3. Metallurgy: Roots blowers are used for gas pressurization and transportation in industries such as steel smelting and non-ferrous metal processing. Its stable pressure and flow output help ensure the smooth progress of the production process.
4. Used in the treatment of industrial waste gas and sludge drying and other treatment fields. Roots blower can provide sufficient airflow pressure to transport waste gas or sludge to the treatment equipment for processing.
In addition, positive pressure pneumatic conveying Roots blowers are widely used in industries such as food processing, chemical engineering, and pharmaceuticals for conveying materials such as powders and granules.
In summary, the positive pressure pneumatic conveying Roots blower plays an important role in multiple industrial fields due to its energy-saving and stable characteristics.
