Super sand mill with double-separation system

Abstract

The invention relates to a sand mill, and particularly relates to a super sand mill with a double-separation system. The super sand mill comprises a horizontal grinding barrel with two ends being sealed by virtue of end covers, wherein a feeding opening is formed in the grinding barrel, a rotating main shaft stretches into the grinding barrel from one end cover, a grinding area and a separation area are formed in the grinding barrel, a grinding rotor installed on the rotating main shaft and rotating along with the rotating main shaft is arranged in the grinding area, a discharging separator is arranged in the separation area, a vacuum area formed by the relative movement of two sides of an axial clearance is formed in the grinding barrel, and the separator is provided with an exhaustion passage communicating a separator discharging cavity and the vacuum area in the axial direction. The separator is provided with the exhaustion passage, when the grinding rotor rotates, two sides of the axial clearance make relative movement to form a vacuum area, so that bubbles generated in the grinding barrel can be discharged from the exhaustion passage, and the discharging speed can be increased.

Description

technical field [0001] The invention relates to the field of powder energy-saving technology and the industrial equipment field of the wet nano-grinding separation technology with dual separation functions of exhaust and liquid discharge. Background technique [0002] Humans have used solid-liquid separation methods for many years. The physical methods include the use of various filter materials with different pore sizes, and the use of adsorption or barrier methods to exclude impurities in the liquid. The most important adsorption method is activated carbon. Adsorption is carried out, and the barrier method is to pass the liquid through the filter material, so that the larger impurities cannot pass through, and then a cleaner liquid is obtained. In addition, the physical method also includes the precipitation method, which is to let the impurities with a small specific gravity float on the water surface to remove them, or the impurities with a large specific gravity to sett...

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Problems solved by technology

The screen of the existing sand mill discharge separation system adopts a gap type separation system, which directly separates the material and the grinding medium, not only the separation effect is poor, but also the separation efficiency is low

Most of them are cylindrical or drum-shaped, and there are generally two kinds of sieve holes formed between the sieve bars, one with a rectangular cross-section. Large particles in the medium or broken grinding media are blocked; the other has a trapezoidal cross-section, and the sieve hole of this kind of screen is fast, but the disadvantage is that it is easy to wear, resulting in a larger sieve hole section and uncontrollable material particle size. And it is prone to leakage of grinding media, which seriously affects product quality, so the service life is short

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