Sewage treatment Roots blower It is a type of positive displacement fan. Two three blade impellers rotate relatively in the space sealed by the casing and wall panel. Since each impeller is involute or the envelope of the epicycloid, the three blades of each impeller are identical, and the two impellers are identical, which greatly reduces the processing difficulty. Numerical control equipment is used during impeller processing to ensure that a certain minimum clearance can be maintained no matter where the two impellers rotate, under the condition that the center distance between the two impellers is constant, so as to ensure that the gas leakage is within the allowable range.
The two impellers rotate in opposite directions. Because the clearance between impellers and impellers, between impellers and casings, and between impellers and wallboards is very small, a vacuum state is formed at the air inlet. The air enters the air inlet chamber under the action of atmospheric pressure. Then, two of the blades of each impeller form a sealed chamber with wallboards and casings, The sealing chamber formed by two blades is constantly taken to the exhaust chamber, and because the impellers in the exhaust chamber are meshed with each other, the air between the two blades is squeezed out. In this way, the air is continuously transmitted from the air inlet to the air outlet, which is the whole working process of Roots blower for sewage treatment. Roots blower for sewage treatment is widely used in sewage treatment industry, especially in sewage treatment equipment. Because of its advanced design and powerful functions, it has become one of the core equipment of sewage treatment equipment. Today, I will show you how to treat sewage with Roots blower.
This is because Roots blower directly determines the efficiency and energy consumption of the whole system. The biological wastewater treatment process mainly uses Roots blower aeration tank to increase oxygen, promote the growth of aerobic microorganisms, and achieve wastewater treatment by metabolizing and decomposing suspended solids, dissolved organic matter, nitrogen, phosphorus and other nutrients in wastewater. At the same time, the performance of Roots blower for sewage treatment directly affects the quality and energy consumption of treated sewage. In the case of small-scale use of roots blower, the economic cost is more appropriate. Roots blower is a constant flow fan. The main working parameter is air volume. The output pressure changes with the pipe and load, and the air volume changes little. Centrifugal fan, air pressure is not large. The air compression process is usually carried out by multiple working impellers (or stages) under the action of centrifugal force. The pressure of roots blower is higher than that of centrifugal blower. Sewage treatment requires high pressure. Normally, roots blower is used. In the case of deep water, ventilation under high pressure can be ensured. Ordinary centrifugal fan cannot meet the requirements.
