Spiral gypsum conveying centrifugal pump, spiral conveying pump, centrifugal spiral pump

Description :

　　1、 Overview of Spiral Centrifugal Pump Products

　　In 1957, the screw pump was born in South America, realizing the dream of non-destructive and fully automatic transportation of live fish. As a result, the screw pump became a great invention in the field of water pumps in the 20th century. At present, it is widely used for conveying activated sludge, so we call it a spiral activated sludge conveying pump. Boyu Pump has been committed to the research of spiral pumps for a long time, successfully solving the problem of traditional spiral pumps losing balance due to relatively fast wear of the centrifugal part, greatly extending the service life of the pump and expanding the application fields of the product. Boyu spiral pump has become a high-performance water pump in difficult transportation fields, widely used in municipal sewage treatment engineering, food processing industry, chemical industry, paper industry and other fields. Boyu Pump relies on pump manufacturing technology and in-depth research and development investment, as well as long-term accumulation of various screw pump engineering experience, to provide users with excellent engineering solutions.

　　2、 Characteristics of Spiral Activated Sludge Transport Mud Pump

　　Compared with traditional mud pumps, the structural characteristics of activated sludge conveying mud pumps determine that they have the following performance advantages:

　　1. Large solid diameter

　　The rotation of the spiral impeller forms a large channel, which can transport liquids containing large particles. Compared with traditional centrifugal impellers with similar outer diameters, the diameter can be greatly increased. A pump with an imported diameter of 100mm can pass solid particles with a diameter of 75mm.

　　2. The screw pump has good unobstructed performance and can truly transport fiber materials without blockage

　　The impeller of the activated sludge conveying mud pump has a large diameter, coupled with guiding and spiral propulsion effects, making it highly capable of conveying liquids containing large particles and fibrous substances, as well as high viscosity and high concentration liquids. Especially long fiber objects can pass smoothly.

　　3. Spiral pump with low turbulence and flexible conveying, good non-destructive performance

　　The solid-liquid two-phase flow gradually advances, with no sudden change in flow direction and smooth flow. The screw pump has little damage to the transported objects and can transport live fish, vegetables, fruits, etc. Especially recently, it is particularly suitable for transporting activated sludge and can maintain the characteristics of activated sludge.

　　4. Energy loss and impeller wear are caused by turbulent water flow, rapid changes in flow direction, and local high flow velocity, while the impeller of the activated sludge conveying pump does not exhibit these phenomena. Therefore, it is possible to:

　　(1) Spiral pumps save energy. Compared with single channel impeller pumps, they can save 5% -20% of energy. Compared with vortex pumps, spiral pumps can save 50% -60% of energy, which can greatly reduce operating costs; (2) Reduce pump wear, lower maintenance and repair costs, and minimize downtime.

　　5. Steep Q-H performance curve

　　The curve of the spiral pump is steep and inclined, and the flow rate changes very little relative to the head variation, ensuring stable operation. Generally, the Q-H curve of a centrifugal pump is relatively gentle, especially for low specific speed pumps, it is difficult to achieve a steep curve.

　　6. No overload power curve

　　The power curve of the screw pump is flat, and the back of the curve sinks. During normal operation, there will be no motor overload; However, the power curve of traditional centrifugal pumps tends to rise at the back, requiring valve closure to start, and there may be motor overload issues.

　　7. Spiral pump efficiency

　　Spiral pumps are 10% to 20% higher than swirl pumps and 5% to 10% higher than ordinary impurity pumps. Their efficiency is not much different from that of general centrifugal water pumps (about 5% lower), especially for small spiral centrifugal pumps, which can reach an efficiency of 60% to 70%, while general small centrifugal pumps only have an efficiency of 40%.

　　The hydraulic flow channel of the spiral mud pump is very smooth and the diameter is large, which reduces the recirculation of liquid in the pump. Therefore, the efficiency of the spiral pump is high, the motor power is small, the energy consumption is low, and the maintenance cost is greatly reduced.

　　8. The required cavitation allowance for the screw pump is low

　　The shutdown water level of the spiral mud pump is low, and the newly introduced pre rotation system can even extract water from the bottom of the suction tank. Even if local cavitation occurs, the pump can still work normally and can pump liquids containing gas. Spiral sludge pumps have better self-priming performance than centrifugal pumps, so they also have self-priming performance as self-priming pumps.

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