Structure and working principle of hydraulic cyclones

Haha...... I don’t know either; let’s wait together for someone more knowledgeable to teach us

It should be a hydrocyclone; there are many products based on the related principle. Structural reference: The mixed fluid enters the cyclone, where separation occurs due to density differences under the action of centrifugal force. The greater the difference in density, the better the separation effect.

Is there a more detailed one?

Explanation of hydrocyclone: A hydrocyclone is a device that uses centrifugal force for classification. It is often used for grading and desliming before the separation of fine-grained materials, and serves for inspection grading and control grading in the grinding circuit. It is a relatively effective device for separating fine-grained materials at present. Structure of the hydrocyclone: The upper part is conical. A feeding pipe oriented tangentially to the cylinder wall is installed on the cylindrical barrel. The upper part of the cone is equipped with a central overflow pipe that is connected to the cylindrical section. The upper end of the overflow pipe is connected to an external pipeline through a buffer chamber or directly to allow the overflow to be discharged. A grit trap is installed at the conical bottom to discharge coarse grit. To reduce wear, the feed inlet, sand settling nozzle, and the inner wall of the cylinder can be lined with wear-resistant rubber, or equipped with wear-resistant materials such as diabase, cast stone, and silicon carbide. Working principle of the hydrocyclone: When the slurry is fed into the cylinder tangentially through a feed pipe using a sand pump (or due to a pressure difference), at a certain pressure (usually 0.5–2.5 kilograms/cm) and flow rate (about 5–12 meters/second), the slurry rotates rapidly along the wall of the cylinder, generating a large centrifugal force. Under the action of centrifugal force and gravity, the coarser and heavier mineral particles are thrown toward the wall of the device, moving downward along a spiral path and being discharged through the discharge nozzle at the bottom of the cone. Meanwhile, the finer mineral particles form an inwardly spiraling upward flow of slurry in the center of the cone, and are discharged through the overflow pipe. The fluid is forced to undergo rotational motion behind the wall of the flow device. Due to the different centrifugal forces acting on them, the larger solid particles in the slurry experience a greater centrifugal force that enables them to overcome hydraulic resistance and move toward the wall of the vessel. Under the combined effect of their own gravity, they move downward in a spiral along the vessel wall. The smaller particles and most of the water, however, experience a lesser centrifugal force; as a result, they do not reach the wall before moving around together with the slurry. Driven by the subsequent feeding, the slurry continues to move downward and in a rotational motion; as a result, the coarse particles continue to accumulate toward the periphery, while the fine particles remain in the central area. The particle size increases from the center toward the wall of the container, resulting in a stratified arrangement. As the slurry flows from the cylindrical part of the cyclone to its conical part, the flow cross-section becomes smaller. Under the compressive force of the outer layer of slurry, the inner layer containing many fine particles is forced to change direction and move upward, forming an inward spiral flow that is discharged through the overflow pipe as overflow. Meanwhile, the larger particles continue to move downward in a spiral along the walls of the device, forming an outward spiral flow, which is ultimately discharged through the underflow outlet as sediment. There are many factors that affect the operation of hydrocyclones; for example, as the diameter increases, the production capacity rises, the particle size that can be separated becomes larger, and the classification efficiency decreases ； Shape and size of the feed opening ； Pressure at the pulp inlet ； Dimensions of the overflow pipe and sand discharge nozzle, as well as their ratio to the diameter ； The size of the cone angle, the slurry concentration, etc.

Which manufacturers do a good job?