The working principle of solid vacuum pump is mainly powered by compressed air, using vacuum suction loading and pneumatic positive pressure to convey materials. Crown's solid vacuum pumps are powered entirely by compressed air and are capable of conveying solid particles, powdered materials, slurries, highly concentrated sludge, oil-containing sludge, mineral slurries, and other bulk materials, etc.

The working principle of solid vacuum pump can be divided into the following steps:

Suction process: In the suction process, the volume inside the pump chamber increases, forming a low-pressure area, making the external solid material is sucked into the pump chamber.
Compression process: as the pump chamber volume decreases, the material is compressed, the pressure gradually increases.
Exhaust process: when the pressure in the pump chamber reaches a certain level, the material is discharged out of the pump through the exhaust port, completing a working cycle.

The main application areas of solid vacuum pumps include:

Conveying solid particles and powder materials: it is suitable for conveying all kinds of solid particles and powder materials, such as mineral slurry and high concentration sludge.
Environmental protection field: in sewage treatment and sludge treatment, solid vacuum pumps can effectively transport oily sludge and other bulk materials.
Industrial production: in the production process of chemical, food, pharmaceutical and other industries, solid vacuum pumps are used for material conveying and loading to improve production efficiency