Large spiral conveyorAdvantages:

The application of spiral centrifugal pumps is expanding. In addition to transporting solid-liquid two-phase fluids, they can also be used to transport viscous fluids. Experiments have shown that the Reynolds number is 3 × 103

1. The Q-H curve is steep, the smooth operation area of the pump is wide, and the curve drift is small when pumping complex media;

2. High operational efficiency, wide high-efficiency zone, and low operating and maintenance costs;

3. Low net suction head and strong anti cavitation ability; Low shutdown water level greatly reduces investment costs;

4. Smooth and drooping power curve, without overload zone;

5. Truly unobstructed and free from entanglement;

6. Soft conveying can transport fragile substances such as live fish, fruits, vegetables, etc. intact; In the activated sludge reflux process of sewage treatment plants, the damage to microbial flocs is only 1/10 of that of other forms of pumps;

7. It can transport media with high solid content, such as mud with a solid content of up to 18%.

Large spiral conveyorcharacteristic:

1. Soft conveying medium: Another advantage of the spiral design is' soft conveying ', which means that solid matter flows through without hitting any part inside the pump. This advantage applies to the following fields: transporting active loose substances, which can maintain their original physical state, and loose substances will not be torn or broken. The oil in the lotion can maintain its specific characteristic state. Suspended fibers will not be twisted or tangled. Fragile items such as tomatoes, live fish, etc. will not be damaged.

2. True non clogging performance: Spiral centrifugal pumps have extraordinary non clogging performance. The open channel of the pump has the characteristics of high efficiency and no blockage, making it easier to transport large volumes of solids and long fiber materials. Ordinary so-called unobstructed centrifugal pumps often get caught by the edges of the blades or stuck or blocked between the inlet and outlet when long fibers and solids enter the channel, causing mechanical failures. Installing a spiral centrifugal impeller eliminates these issues. The spiral impeller will automatically screw into the soft solid, preventing the filling material from blocking at the inlet. In addition, the inner wall of the suction port and the back of the impeller are designed with reverse threaded grooves to prevent fiber accumulation.

3. Outstanding operating curve: high efficiency=low operating costs; A steep performance curve=smooth operation; Low net suction head=high self-priming capacity; Smooth power curve=no overload area; High speed=compact structure

4. High solid content medium processing capability

5. Adopting adjustable wear-resistant lining: It is an ideal choice in applications with severe wear. When wear occurs, only one lining needs to be replaced, without the need to replace the entire shell, which is both convenient and economical.

working principle:

When the spiral shaft rotates, due to the gravity of the material and the frictional force generated with the groove wall, the material can only move forward along the groove bottom of the conveyor under the push of the blades, as if a nut that cannot rotate moves in translation along a rotating screw. The movement of materials in the middle bearing relies on the thrust of the materials moving forward from behind. So, the transportation of materials in the conveyor is entirely a sliding motion. In order to keep the screw shaft in a favorable tension state, the driving device and discharge port are generally placed at the same end of the conveyor, while the feed port is placed as close to the tail of the other end as possible.

The rotating spiral blades push the material for transportation, and the force that prevents the material from rotating together with the spiral conveyor blades is the weight of the material itself and the frictional resistance of the spiral conveyor housing to the material. The surface shape of the blades varies depending on the type of material being conveyed, including solid surface, belt surface, and blade surface. The screw shaft of the screw conveyor has a thrust bearing at the end of the material movement direction to provide axial reaction force to the screw along with the material. When the machine is long, an intermediate suspension bearing should be added.

Purpose:

Spiral centrifugal pump combines the volume inference effect of the spiral with the centrifugal effect of the blades through its special three-dimensional spiral blades, allowing the medium to obtain energy. So it combines the characteristics of a volumetric pump and a vane pump, and is the product of their mutual combination. Compared with ordinary impurity pumps and swirl pumps.

Has the following advantages: good non clogging performance; Good non-destructive performance; High efficiency and wide efficient zone; The power curve is flat; Good regulatory performance; The suction performance of the pump is good; Has excellent anti cavitation performance; It can also transport oil-water mixtures without causing emulsification.

Spiral centrifugal pump is a new type of non clogging pump, which has a wide range of application prospects in various industries such as paper industry (conveying high concentration pulp), fishery (conveying live fish, shrimp, etc.), sugar industry, food industry (conveying block vegetables such as potatoes and sugar beets), metallurgy, environmental protection (river dredging: conveying silt and sand), chemical industry, and sewage treatment operations.