If the bottom flow concentration of the cyclone exceeds the set value too much, it will have a serious impact on the next production process or product quality. There are many reasons that can cause abnormal bottom flow concentration in cyclones, and the following are some common ones. The abnormal bottom flow concentration of a hydraulic cyclone refers to the bottom flow concentration being too high or too low, which does not meet the design value.

Investigation and analysis of the causes of abnormal bottom flow concentration in hydrocyclones

The sand settling port can also be made adjustable, and its large size beneficiation work can be adjusted according to needs to save energy and reduce consumption. It is recommended that the working principle of the iron ore ball mill and the operating parameters of the cyclone be adjusted. The size of the sedimentation nozzle of the cyclone. The common reason for abnormal bottom flow concentration in a hydraulic cyclone is that the operating pressure or feed concentration of the cyclone deviates too much from the design value.

Hydrocyclones have no moving parts and are relatively simple in structure. They have a large production capacity per unit volume and occupy a small area, resulting in excellent operational efficiency. Working principle: Hydrocyclones are divided into pressurized and non pressurized according to the feeding method. Generally, pressurized ore feeding is used, with the slurry working at a pressure of 49-245kPa and a speed of 5-12m/s.

The upper end of the cylindrical cylinder is equipped with a feed pipe in the tangential direction, and the top is equipped with an overflow pipe and overflow conduit. There is a sand settling port at the bottom of the conical cylinder. Use flange plates and screws to connect each part. The feeding port, cylinder, and sand settling port are usually lined with rubber, polyurethane, silicon carbide, or diabase cast stone to reduce wear and replace after wear.

The schematic diagram of the structure of the hydraulic cyclone shows a cylindrical body, which then rotates at high speed around the axis, generating a large centrifugal force. Particles with different particle sizes and densities in the slurry have different velocities, accelerations, and directions of movement in the cyclone due to the centrifugal overflow conduit force they receive. Coarse and heavy particles experience greater centrifugal force and are thrown towards the cylinder wall, spiraling down to the bottom along a spiral trajectory, and discharged from the settling port as settling sand; Fine and light particles are subjected to less centrifugal force and are carried to the center, forming an internal spiral mineral flow in the center of the conical tube, which moves upward and is discharged from the overflow pipe as overflow.

When the operating pressure of the cyclone is too low or the feed concentration is too low, the bottom flow concentration will be too low. Otherwise, the bottom flow concentration will be too high. By adjusting the operating parameters of the cyclone, the problem can be solved. The size of the sedimentation nozzle of the hydraulic cyclone also determines whether the bottom flow concentration can reach the predetermined value. Cyclones are usually sold with three sizes of sand nozzles. If the size of the sand nozzle does not meet the actual production needs on site, other sizes of sand nozzles can be replaced according to the situation to eliminate the problem of abnormal bottom flow concentration.

In the selection and design of cyclones, the concentration of the bottom flow is fully determined according to production needs. The bottom flow concentration of cyclones is usually not less than 50%, while the bottom flow concentration of special cyclones such as dam cyclones can reach 90%. The upper part of the hydraulic cyclone is a hollow cylinder, and the lower part is an inverted cone connected to the cylinder, forming the working cylinder of the hydraulic cyclone.

When we use hydrocyclones as classification equipment, they are mainly used to form a grinding and classification system equipment with mills. When we use hydrocyclones as desliming equipment, they can be used for desliming in re selection plants. When we use hydrocyclones as concentration and dehydration equipment, they can be used to concentrate mineral tailings and transport them to fill underground mining tunnels.