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The Roots blower has no internal compression, so when the exhaust is exhausted, the higher-pressure air in the pipe network is reversely charged back into the compression chamber, forming gas ramming, which produces high low-frequency air noise, and the vibration of the equipment is also very large, which greatly reduces the pressure of the screw fan. Reduced noise and vibration, 15-30dB lower than Roots blower noise (A).
Whether it is municipal sewage or corporate sewage (including textile printing and dyeing, leather, medicine, chemical industry, paper making, breeding and slaughtering, etc.), it must be treated up to the standard before it can be discharged into natural water bodies or recycled. In the sewage treatment process, a key link is the oxygen supply for biological treatment, that is, the aeration link. During the operation of several common process sewage treatment plants, the energy consumption of the oxygen supply system for biological treatment accounts for 50%-55% of the energy consumption of the whole plant. There is a lot of room for reducing the consumption of the biological treatment oxygen supply system. Choosing an efficient blower will directly bring considerable economic benefits.
Suitable for dilute phase and powder conveying in cement plants as well as powder conveying in the petrochemical industry. It delivers lower energy costs (up to 80% of blower life cycle costs) and features innovative screw blower technology resulting in less downtime for maintenance.
Features lower energy costs (up to 80% of blower life cycle costs) and innovative screw blower technology for lower maintenance downtime. It provides extremely wide flow and pressure operating ranges for nonwoven production, air knife, and texturing flow adjustable to influence fiber properties. This energy-efficient blower is capable of continuous 24/7 operation with low operating costs and allows point-of-use installation without noise protection measures.
In thermal power generation, steel, glass, chemical, and other factories, a large number of boilers are burned, emitting flue gas containing sulfur, nitrate, and other harmful substances. This requires proper treatment like desulfurization and denitrification before emission. In these facilities, oil-free screw blowers are required as oxidation fans to ensure performance meets strict standard requirements.
Under the same air volume and air pressure, the power consumption required by the screw blower is much smaller. The green part in the figure represents the saved energy consumption. Compared with the traditional Roots blower, the screw blower may save up to 35%; the higher the pressure, the more significant the energy-saving effect, with an average energy saving of 20%. The overall energy saving of the oil-free blower can reach 20%-50%.
Under the same air volume and air pressure, the power consumption required by a screw blower is significantly smaller. On average, a screw blower saves 20% to 50% of energy consumption compared to traditional Roots blowers, while also reducing noise and vibration levels by 15-30dB.
Aeration systems consume about 50%-55% of the total energy in sewage treatment plants. Because screw blowers feature higher internal compression efficiency and lower power demands, they dramatically reduce the operation costs of the oxygen supply systems.
Yes, screw blowers are engineered for continuous 24/7 operation with extremely wide flow and pressure ranges. They have lower maintenance requirements, which minimizes operational downtime.
Screw blowers are ideal for dilute phase pneumatic conveying, specifically for transferring powder materials such as cement in cement plants and raw chemicals in the petrochemical industry.
In thermal power, steel, glass, and chemical plants, oil-free screw blowers serve as oxidation fans. They help treat boilers' emissions by oxidizing chemical compounds in flue gas before they are safely discharged.
