root blowers

root blowers

Root blowers is a positive displacement blower. Its working principle is based on the relative movement of two blade-shaped rotors in the cylinder to compress and transport gas.
This kind of fan has a simple structure and is easy to manufacture. It is suitable for gas transportation and pressurization systems in low-pressure situations, and can also be used as a vacuum pump.
The design and structure of the Roots blower ensure that it can effectively increase the pressure and flow of gas, and at the same time achieve precise control of gas flow and pressure by adjusting the rotation speed and angle of the impeller.
This type of pump is popular for its unique operating mechanism and wide range of applications, especially where stable air flow and pressure are required.

Root blowers uses
Roots Blower

  • ‌Root blowers‌ are widely used in many industries and fields, mainly including:
  • ‌Sewage treatment‌: In the sewage treatment industry, Roots blowers are widely used in aeration, stirring, mixing and other aspects to ensure the smooth progress of the sewage treatment process.
  • ‌Pneumatic conveying system‌: Root blowers are used to transport feed, lime powder, monosodium glutamate, soybean skin, silica and other powdery materials, as well as grain suction machines or crane suction vacuum pumps in grain transportation to ensure the effectiveness of materials transmission.
  • ‌Aquaculture‌: In aquaculture, Root blowers use micropore aeration technology to oxygenate water quality and improve breeding efficiency.They are important equipment in the aquaculture industry.
  • ‌Coal chemical industry‌: In the coal chemical industry, Roots blowers are used in sewage treatment and different processes, playing an important role in improving production efficiency and product quality‌.
  • ‌Dust removal industry‌: Root blowers are also used in the dust removal industry, such as desulfurization, denitrification, dust removal, etc., to ensure the effective treatment of industrial flue gas and waste gas.
  • ‌Grain processing, flour mills, food factories‌: used in transportation, drying, cooling, dust and other links to ensure the smooth progress of the food processing process‌.
  • ‌Paint and Coating Industry‌: Used for ventilation, dust removal and waste gas treatment to ensure the safety and health of the working environment.
  • ‌Mining, quarrying, and mineral processing industries‌: used in emissions, exhaust, gas transportation, drying and other links to ensure environmental control and safety during the development of mineral resources‌.
  • ‌Pharmaceutical Industry‌: In the pharmaceutical industry, Root blowers are used in pharmaceutical processing, chemical reactions and other aspects, such as laboratory ventilation equipment, to ensure the safety and efficiency of the pharmaceutical production process‌.

Root blower working principle
roots blower diagram

  • The working principle of Root blowers can be simply summarized into the following steps:
  • Suction stage: When the rotor rotates, the volume of the chamber gradually increases, forming a low-pressure area.This low-pressure area attracts outside air into the chamber.
  • Compression stage: As the rotor continues to rotate, the volume of the chamber gradually decreases.This process causes the air to become compressed, increasing its pressure.
  • Exhaust stage: When the volume of the chamber reaches the minimum value, the compressed air will be discharged from the chamber.At this time, the rotation of the rotor will increase the volume of the chamber again to prepare for the next round of suction.
  • By repeating the above steps, the Roots blower can continuously suck in, compress and discharge air.This working principle enables Roots blowers to produce high-pressure, high-flow airflow.

Root blower specifications

lgsr100

lgsr100

lgsr125

lgsr125

Root blowers pressure range

  • According to different usage requirements, the pressure of the Root blowers can be adjusted between 9.8kpa and 200kpa.Within this pressure range, the Roots blower can work normally and meet various process requirements.Specifically, the pressure range of Roots blowers includes:
  • ‌Low pressure range‌: The pressure is lower than 58.8kpa, including 9.8kpa to 58.8kpa.This type of fan usually uses air cooling, and is mostly designed with a single oil tank.
  • ‌Medium pressure range‌: The pressure is between 58.8kpa and 98kpa.This type of fan requires water cooling, and most of them are designed with double oil tanks.
  • ‌High pressure range‌: When the pressure exceeds 98kpa, especially when it exceeds 140kpa, double-stage pressure boosting technology is required to ensure stable operation of the fan under high pressure.

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