Application of spiral chute in beneficiation of silica sand;

The research determined the Silver Content can get Enrichment through spiral chute treatment,the leaching rates is up to 79.

A summarization of development on spiral chute,as well as technical characters for steel structure wall-hung outer spiral chute in Xingjing Coal Mine were introduced.

Finite Element Simulation of the Gas Flow Field in the Dry Gas Seal Spiral Grooves;

Calculation of heat transfer surface area for spiral grooved tube;

Dynamic pressure calculation of steady-state micro-scale flow field in spiral grooved dry gas seals;

Finite element simulation of spirally grooved tube roll-pressing process;

Investigation of heat transfer of vapor condensation with high concentration of noncondensable gas on spirally grooved tube;

The mainstructure parameters of spirally grooved tube are diameter of tube, fin pitch,corrugation depth, wall thickness, spirally angle and spira.

By making a series of cross-section perpendicular to the axial line of the formed grinding wheel,contact points between the grinding wheel and the helical flute of the milling cutter were obtained.

As an important part of ball-end miller, helical flute is significant effect on the performance of ball-end miller.

Rolling press process of spiral grooved tube was simulated by ANSYS software.