The application of the free vortex principle can effectively remove the heavy impurities of gravel, glass blocks, gravel, pins, bolts, staplers and metal sheets in all kinds of slurry at a concentration of 1.0-6.0%.

The high concentration heavy slag eliminator has two forms of automatic slagging (slagging time depends on the slurry) and manual slagging, which has the characteristics of no plugging, so that it can be continuously operated unattended. Slurry from the tangential direction at a specific Angle downward into the slag separator, slurry flow along the inner wall in a spiral tangential way to the direction of the slag discharge mouth to produce centrifugal effect, impurities such as gravel, metal blocks, etc. under the action of centrifugal force to the inner wall and downward from the lower cone mouth into the sediment chamber, in the sediment chamber to further wash the slurry, fiber recovery. The waste slag is deposited at the bottom of the slag chamber. The good pulp is spirally upward and discharged through the diversion pipe at the top of the slag eliminator.

The cone part is composed of an external steel shell and an internal ceramic or wear-resistant stainless steel. The upper cone is a centrifugal slag removal area. The coarse slag separated in the upper cone flows into the lower cone: gradually decelerate and get cleaned. Coarse slag sinks into the sediment chamber. The fibers return to the slurry stream, so fiber loss is low. The whole slag eliminator will not clog