Uniform feeding method and device by adopting wet sieving method

Abstract

The invention provides a uniform feeding method and device by adopting a wet sieving method. Self-pressure feeding and uniform distribution technology in multiple sections are adopted so that uniform feeding of qualified plup after grinding is achieved. The device is composed of two parts including a feeding buffer tank and a distribution chute. The feeding buffer tank is provided with a feeding port and a discharging port. Multiple baffle plates are arranged in the distribution chute and spaced at an equal interval. The height of each baffle plate is in the same as that of an outlet of the feeding buffer tank. The distribution chute is uniformly divided into multiple individual sector-shaped distribution areas by the baffle plates. Pulp is uniformly distributed and enters any one fan-shaped distribution area.Pulp flows out of outlets of the multiple individual fan-shaped distribution areas from the distribution chute and is uniformly fed into a high-frequency screen net.The uniform feeding method and device by adopting the wet sieving method have following beneficial effects: qualified pulp after grinding can be uniformly distributed on the net through self-pressure feeding and distribution technology in multiple sections so that processing capability and screening efficiency of the high-frequency screen net are enhanced; impact of chute deformation on production is reduced; working efficiency of the high-frequency screen net is increased; and maintenance intensity of equipment is decreased.

Description

technical field [0001] The invention relates to a wet sieving uniform feeding method and device, in particular to a wet sieving uniform feeding method and device in the wet sieving process of bauxite ground pulp, and belongs to the technical field of alumina production. Background technique [0002] Alumina production uses bauxite as the main raw material. After the bauxite is crushed, the raw material mill is used to grind the bauxite slurry with a qualified particle size by adding appropriate circulating lye, and then the finished alumina is finally produced after pre-desilication, dissolution, seed decomposition, aluminum hydroxide filtration and roasting. . Grinding of raw materials is one of the important processes in alumina production, and the solid content of the pulp after grinding has a very important influence on the subsequent processes such as pre-desilication and dissolution. [0003] For a long time, bauxite grinding has mainly used hydrocyclones as grading ...

AI Technical Summary

Problems solved by technology

Due to the problems of installation accuracy and later maintenance, after a period of use, under the action of gravity and other external forces, the feeding chute will be distorted and deformed

Further cause the qualified slurry after grinding to be unevenly distributed on the screen, resulting in a decrease in equipment production capacity and a decrease in screening efficiency

Images