Feed distributor acceleration cone of horizontal spiral unloading settling centrifuge

Abstract

The invention discloses a feed distributor acceleration cone of a horizontal spiral unloading settling centrifuge. A feed distributor comprises a spiral core tube, a spiral flange, a short spiral shaft with a feeding port, and a plurality of discharging ports and drainage holes formed in the surface of the spiral core tube. The acceleration cone comprises a cone body welded to the spiral core tube integrally and a distributing disc welded to one end of the cone body integrally, the other end of the cone body is opened, and the surface of the inner cavity of the cone body is provided with a plurality of wear resisting grooves; two grooves are formed in the surface of the distributing disc adjacent to the inner cavity of the cone body; an annular partition is arranged between the short spiral shaft and the acceleration cone. The feed distributor of the horizontal spiral unloading settling centrifuge is designed in an optimized manner, the mixing materials are rotated and accelerated in advance, the liquid flow confusion is eliminated, friction between the mixing materials and the discharging ports and wear of pushing blades of the outer wall of the spiral core tube are reduced, and the separation factor, extraction rate and safety coefficient of the horizontal spiral unloading settling centrifuge are increased significantly.

Description

technical field [0001] The invention relates to the field of centrifuges, in particular to an acceleration cone of a feed distributor of a horizontal spiral unloading settling centrifuge. Background technique [0002] Horizontal screw discharge decanter centrifuge (hereinafter referred to as decanter centrifuge) is mainly composed of drum body, differential gear and other components. The basic principle of its work is: when the material to be separated enters the separation area of ​​the centrifuge drum through the inner cavity of the screw through the feed pipe, a strong gravity acceleration (centrifugal force) is generated in the high-speed rotating drum, and the relative density of the material is reduced. Larger solid phase particles quickly settle to the inner wall of the drum. Due to the different speeds of the screw body and the drum body, there is a relative motion between the two (that is, the difference in speed). The phase particles are pushed to the slag outlet ...

AI Technical Summary

Problems solved by technology

After the material enters the spiral cavity through the feed pipe under the feed pressure, the liquid flow will be scattered disorderly after hitting the feed distributor, and will be discharged from the discharge port quickly. In addition, due to the presence of The acceleration process of the rotating line speed makes the material distribution uneven, the flow of the mixed liquid of the material is turbulent, etc., resulting in a large solid content in the separated clear liquid, increasing the wear of the spiral pusher blade, and many other problems.

Images