Roots blower for pneumatic conveying

Roots blower for pneumatic conveying

• Roots blower is a positive displacement blower. It mainly transports gas through the change in the working chamber volume formed by the rotation of two rotors with an involute or similar shape. This type of blower works similarly to a gear pump, with each rotor functionally equivalent to a two-tooth gear.

roots blower for pneumatic conveying

What are roots blowers used for?

• ‌Roots blowers‌ are widely used in many industries and fields, mainly including:
• ‌Sewage treatment‌: In the sewage treatment industry, roots style blowers are widely used in aeration, stirring, mixing and other aspects to ensure the smooth progress of the sewage treatment process.
• ‌Pneumatic conveying system‌: roots style 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, roots style 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: Roots 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, Roots 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.

Does a Roots blower compress air?

• The wind generated by Roots blowers is not typical compressed air. Although Roots blowers increase the pressure of gases, they work differently than typical compressed air equipment such as compressors. Roots blowers primarily push gas into a pipe through a rotating impeller rather than increasing gas pressure through a compression process.

What is the difference between a Roots blower and a blower?

• 1.Structural differences
• The unique structure of the Roots blower is composed of an outer rotor and an inner rotor. The two rotors mesh with each other to produce the effect of gas compression and transportation. This structure has the advantages of small size, low noise, no vibration and no oil pollution. The blower generates airflow through the rotation of the impeller in the casing, and then compresses and transports the airflow through the action of the air guide assembly. The blower has the advantages of compact structure, low energy consumption and long service life.
• 2.Differences in working principles
• Roots blower generates gas compression and transportation effects in the casing through the mutual meshing of two rotors. Roots blowers usually rotate at very high speeds, so they require specialized care and maintenance when working. The blower generates airflow through the rotation of the impeller, and then compresses and transports the airflow through the cooperation of the guide components. The working speed of the blower is usually low and the operation is simple, so you need to pay attention to correct operation and maintenance during use.

Lean and dense phase conveying

• Dilute phase conveying system
• The dilute phase conveying system uses compressed gas as kinetic energy to transport materials suspended in the air flow along the pipeline. The materials during the transportation process will form a gas-solid two-phase mixture with the gas.
• Applicable materials: powdery, granular, liquid and other dry materials, often used for conveying materials with good fluidity.
• Advantages:
  (1) Since the material has a low packing density and forms a gas-solid two-phase mixture with gas, the gaps between the materials are large, which can effectively avoid pipeline blockage during transportation.
  (2) The material-gas ratio is small, the conveying speed is fast, and it is suitable for short conveying distances.
  (3) The equipment structure is relatively simple, without too many valves, and maintenance is simple.
• Disadvantages: The conveying efficiency is low and it is easy to cause wear to the material due to too fast flow rate.
• Dense phase conveying system
• The dense phase conveying system promotes denser materials to be conveyed to the discharge point at a relatively low conveying speed by creating a pressure difference within the pipeline.
• Applicable materials: bulk materials with large particles and larger particle sizes, often used for conveying coal, ore, etc.
• Advantages:
  (1) The dense phase conveying system is suitable for large flow conveying requirements and long conveying distance.
  (2) The material-gas ratio is high, the transportation is stable, and the wear on the materials is low.
  (3) The energy consumption is relatively low, it can effectively reduce the emission of dust pollution, and is more environmentally friendly.
• Disadvantages: Due to the high density of materials in the system, blockage may occur.