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The working principle of Roots blower

• Impeller rotation: When the motor drives one of the impellers to rotate, the other impeller will rotate synchronously at the same speed and in the opposite direction through the action of the synchronization gear.
• Gas suction and compression: Since the gaps between the impeller and the impeller, the impeller and the casing, and the impeller and the wall panel are extremely small, a vacuum state is formed at the air inlet during the rotation of the impeller, and the air is sucked into the intake air under the action of atmospheric pressure cavity. As the impeller continues to rotate, two of the blades of each impeller, the wall panel and the casing form a sealed cavity, and the air in the intake cavity is continuously brought to the exhaust cavity by the sealed cavity formed by these two blades. And because the impellers in the exhaust chamber mesh with each other, the air between the two blades is squeezed out.
• Gas discharge: After continuous inhalation and squeezing, air is continuously transported from the air inlet to the air outlet, completing the entire gas transportation process.

Roots blower specifications

Roots blower uses

• ‌Sewage treatment‌: Roots blowers play an important role in the sewage treatment process. By providing sufficient oxygen, they promote the growth and reproduction of microorganisms, thereby effectively purifying water quality. In addition, Roots blowers can also use airflow to generate eddy currents in the mixing tank and sedimentation tank to evenly mix the sludge, accelerate chemical reactions, and improve treatment effects.
• ‌Aquaculture‌: Roots blowers are mainly used for oxygen aeration in aquaculture. They provide oxygen through micropore aeration technology to promote biological activities in the water body and improve water quality.
• ‌Pneumatic conveying system‌: Roots blowers are used to transport powdery materials in pneumatic conveying systems, such as feed, lime powder, monosodium glutamate, soybean skin, silica, etc., as well as grain suction machines or overhead cranes in grain transportation. Vacuum pump.
• Coal Chemical Industry‌: Roots blowers are used in sewage treatment and different processes in the coal chemical industry to help deal with impurities and suspended solids in wastewater by providing stable compressed air.
• ‌Fine Chemical Industry‌: In chemical processes and material production, Roots blowers are used in processes such as steaming, drying, and transporting gases, helping to improve the efficiency of chemical reactions.
• ‌Air delivery‌: Roots blower can be used as the main equipment in the air delivery system, sucking air from one place, compressing it and then sending it to another place.

Roots blower pressure range

According to different usage requirements, the pressure of the Roots blower 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.

Roots blower application‌
‌Roots 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: Roots 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 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.

Roots blower diagram

Roots blower specifications


Roots blower pressure range
According to different usage requirements, the pressure of the Roots blower 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.


Roots blower maintenance
‌Maintenance of Roots blowers is crucial to ensure their normal operation and extend their service life. Here are some key maintenance steps and precautions:
‌Daily inspection‌:
Check the oil level: Make sure the oil level is within the appropriate range, usually halfway up the oil glass. If the oil level is too low, it should be replenished in time.
Check the tightness of the belt: Check the tightness of the belt regularly to ensure that it is within the appropriate range. Too tight or too loose will affect the operating efficiency of the fan.
Check all connections: Make sure all connections are tight and not loose.
lubricating:
Regularly replace lubricating oil: Roots blowers are usually lubricated with gear oil. It is recommended to replace the lubricating oil after every 1,000 hours of operation and ensure that the oil level is within the appropriate range.
Use appropriate grease: For fans using grease, it is recommended to replenish it every 3 months, and determine whether it needs to be replaced based on the quality of the grease.
‌Cleaning and Filtration‌:
Clean the filter: Clean or replace the air filter regularly to prevent dust and other impurities from entering the inside of the fan. ‌
Clean the imported muffler filter: Clean the imported muffler filter every three months to prevent it from affecting the air inlet volume.
Special Maintenance‌:
Maintenance of water-cooled heat dissipation system: For water-cooled heat dissipation Roots blowers, special attention must be paid to maintenance during seasonal changes. The cooling water circulation must be maintained in summer and the cooling water must be drained in winter to prevent freezing.
Security and performance checks‌:
Check the safety valve: Check the flexibility of the safety valve regularly to make sure it will work properly when needed.
Check the noise and temperature: Closely monitor the noise and temperature of the fan. If there is any abnormality, stop it for inspection in time.
By following the above maintenance steps, you can effectively extend the service life of the Roots blower and ensure its stable operation.

roots blower pressure range
According to different usage requirements, the pressure of the Roots blower 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.

roots blower specifications



roots blower uses
‌Roots 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: Roots 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 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.

root blower working principle
The working principle of Roots blower can be simply summarized into the following steps:
1.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.
2.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.
3.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.

roots blower diagram

How to choose a Roots blower suitable for aquaculture?
Several factors need to be considered when choosing a Roots blower suitable for aquaculture, including the size of the farm, the amount of water that needs to be treated, the required ventilation effect, and the environmental characteristics of the place of use, etc. Here are some key steps and considerations:
‌Determine the scale of the farm and the amount of water that needs to be treated‌: Determine the required fan air volume based on the number and area of ​​fish ponds and the size of the space that needs ventilation. This helps in selecting the appropriate fan model and size.
‌Consider the oxygen demand of the breeding environment and fish‌: Different breeding environments and fish have different demands for dissolved oxygen, so it is necessary to adjust the bubble intensity and working intensity of the Roots blower according to the actual situation to ensure that the appropriate amount of oxygen is obtained in the water body of oxygen supply.
Choose the appropriate installation location‌: The Roots blower should be installed close to the water body to reduce the length and resistance of the delivery pipe and ensure that the air flow can be effectively transferred to the water. At the same time, you should stay away from the production area and choose a well-ventilated place to ensure good heat dissipation and low noise.
‌Match appropriate delivery pipes‌: Use pipes of appropriate diameter to connect the Roots blower and the breeding pond to reduce the resistance loss of the air flow. Make sure the ducts are well sealed to avoid airflow leaks.
‌Air filtration‌: The air sucked by the Roots blower needs to be purified by a filter to reduce wear on the cylinder and bearings. Generally, an air filter is installed in the front of the Roots blower, using filter materials such as filter sponge and desiccant.
‌Regular inspection and maintenance‌: During use, it is necessary to regularly check whether the various components of the Roots blower are working properly, such as whether the bearing temperature is too high, whether the lubricating oil is sufficient, etc. Regularly clean and maintain the Roots blower, replace lubricating oil and filter materials, etc. to keep the equipment in good condition.
‌Professional guidance and experience‌: It is recommended that users choose manufacturers with rich experience in oxygenation to provide technical guidance to ensure the correct selection and use of roots blower for aquaculture, so as to achieve the best oxygenation effect and economic benefits.

Advantages of Roots Blower in Breeding Industry
‌The advantages of Roots blowers in the breeding industry are mainly reflected in efficient oxygenation, energy saving and environmental protection, easy maintenance, safety and reliability, and wide application range. ‌
‌Efficient Oxygenation‌: The roots blower for aquaculture mixes oxygen into the water by compressing and discharging air, thereby increasing the oxygen content in the breeding water body. This is crucial for organisms in aquaculture, as adequate oxygen is necessary for them to breathe and grow properly. Adequate oxygen can promote the growth and survival rate of aquatic organisms, while also helping to reduce diseases and deaths caused by hypoxia, thereby improving breeding efficiency.
Energy saving and environmental protection‌: Roots blowers use volumetric compression technology, which is more energy-saving than other types of blowers, and can significantly reduce energy consumption and increase production capacity. In addition, the Roots blower has low noise and vibration during operation, is suitable for indoor use, and will not affect the aquaculture environment.
‌Easy maintenance‌: Roots blowers do not require oil changes or lubrication, so maintenance costs are low, and cleaning and repair are relatively simple. This design reduces mechanical wear or component damage, making the service life of Roots blowers much longer than other types of blowers.
Safe and reliable: The Roots blower has low noise and vibration during operation and will not cause any pollution to the water area. Other oxygenation methods work in water, which is prone to leakage and has potential harm to the human body and shrimps. The Roots blower adopts a double vortex fluid design, which is oil-free and has no friction points, so there is almost no mechanical wear or component damage, so it has a long service life, is safe and reliable.
‌Wide range of applications‌: Roots blowers are widely used not only in the aquaculture industry, but also in the flour industry, pesticide chemical industry, and mining industry. They have a wide range of uses and can increase the oxygen content in water and improve water quality through aeration. , thereby improving the survival rate and productivity of aquatic products‌.
In summary, the application of Roots blowers in the breeding industry not only improves breeding efficiency and reduces operating costs, but also improves the quality and safety of breeding products. It is an indispensable equipment in the breeding industry.

Which blower is suitable for aquaculture?
‌Blower types suitable for aquaculture include Roots blowers, high-pressure blowers, and magnetic levitation blowers.
Roots blowers‌ are widely used in aquaculture because of their scientific and reasonable design, stable operation, long-term operation, ability to transport a small amount of granular media, simple structure, low noise, strong adaptability and high reliability. Roots blower for aquaculture are suitable for situations requiring higher gas pressure and large flow rates, such as oxygenation and sewage treatment in aquaculture. Although the Roots blower has some shortcomings, such as difficulty in processing and inspection, and performance degradation under high vacuum conditions, its advantages make it a commonly used equipment in aquaculture.
High-pressure fans‌, such as high-pressure vortex air pumps, are suitable for oxygenation of aquaculture fish ponds and sewage aeration. They have the advantages of large air volume, high efficiency, energy saving, low noise and long life. They are suitable for use in large-scale aquaculture industries to increase dissolved oxygen in water. content, plays an important role in purifying water quality‌.
‌Magnetic levitation blower‌With its advantages of large air volume, high efficiency, energy saving, low noise and long life, it is suitable for large-scale aquaculture industry. In addition to increasing the content of dissolved oxygen in the water, it can also accelerate the oxidation and decomposition of certain harmful substances in the water, which plays an important role in purifying water quality. The magnetic levitation blower is one of the indispensable equipment in the shrimp farming industry‌.

Shandong Longgu Heavy Industry Machinery Co., Ltd. (formerly known as Zhangqiu Taiping Machinery Factory) is located in Chengdong Industrial Park, Zhangqiu City, Shandong Province, which has the reputation of being a national garden city and a national health city. It is half an hour away from Jinan International Airport, with a superior geographical location and convenient transportation.

Since its establishment in the early 1990s, Longgu Heavy Industry has become a diversified machinery enterprise integrating fan and pneumatic conveying equipment system engineering. Our company has advanced computer-aided design and manufacturing, CNC machining technology, and adopts information technologies such as computer-aided design and CAPPCT to improve product design and manufacturing accuracy and shorten the design and manufacturing cycle.

The company also has imported advanced and high-precision machining equipment from many countries, including fully automatic machining centers, CNC boring and milling machines, and dynamic balancing instruments. It has a high-level, large-scale, and modern mechanical processing and manufacturing workshop.

The company has completed the implementation and control of its internal quality management system, achieving independent quality control of products from research and development design to finished product delivery. It has established and improved a full process self-control system from design and production to quality, installation, and service, providing sufficient basis and reliable guarantee for the stability and durability of products.

We have cooperated with higher education institutions such as Shandong University, Shandong University of Technology, and Southwest University of Technology to strengthen the research and development of key core technologies. We have overcome technical difficulties and developed new products such as diesel engine driven Roots blowers, water-cooled dual tank Roots blowers, and low-noise Roots blowers, filling multiple industry gaps.

At present, our company’s main products include LGSR three leaf Roots blower, LGSR-V Roots vacuum pump, LGSR-H high-pressure blower series, bipolar series high-pressure, gas pressurized explosion-proof, pneumatic conveying series fans, steam compressors, LGMJ dense series fans, rotary fans, centrifugal fans, etc.

Our company’s products are widely used in industries such as sewage treatment, pneumatic conveying, vacuum packaging, grain processing, electricity, petrochemicals, cement, mining, and special gas pressurized conveying.

We have close cooperative relationships with top domestic enterprises such as Sande Group, COFCO Group, and Shanshui Cement. Our company’s sales outlets and after-sales service centers are located throughout the country and exported to countries such as Malaysia, India, Kyrgyzstan, Nigeria, etc.

The company adheres to the business philosophy of “product quality as the lifeblood of the enterprise”, the work attitude of “being down-to-earth and doing things seriously”, and the brand awareness of “self inspection by everyone and specialized quality inspection”.
We strive to create products with excellent performance and smooth operation, and dedicate ourselves to our customers.

We sincerely hope to cooperate with you sincerely and create a beautiful chapter together!