RU113677U1 - CONTINUOUS ROTATING HUB - Google Patents

Abstract

A continuous rotating concentrator, consisting of a housing, a conical bowl, a drive shaft, acting as a loading pipe, made in the form of a cylindrical pipe with holes for material outlet in the lower part, a concentrate discharge pipe and a tailings discharge pipe, characterized in that the concentrator is additionally equipped with a screen and flat outer ribs made at an angle on a conical bowl.

Description

A utility model relates to the field of classification and mineral processing.

Known centrifugal concentrators, the working body of which is a bowl conical, hemispherical or parabolic in shape with ring grooves from the inside [1]. The bowl is driven into rotation, and water and the starting material are supplied to the central part. Under the influence of centrifugal force, low-density ore fragments are carried outside the concentrator bowl, and heavy minerals sink into the grooves of the corrugations and accumulate in them.

A common drawback of centrifugal concentrators is the cyclical nature of their work. After a certain period of work, the concentrator is stopped, and the accumulated concentrate is unloaded.

Closest to the claimed is a device for gravitational separation of fine-grained materials [2], including a conical bowl mounted with the possibility of rotation around a vertical axis with annular ripples on the inner surface and a false bottom, with devices for unloading light and heavy fractions, with the supply of loosening water coming from perforated tubes made of elastic materials and placed in grooves between the rafts, and the device for unloading the heavy fraction is made in the form a number of holes in the bottom of the conical bowl.

The disadvantage of this device is a complex design, high water consumption.

Ensuring stable continuous operation, as well as improving the quality of separation of mineral grains by density, is achieved in the proposed continuous rotating concentrator with a screen, consisting of a housing, conical bowl, drive shaft, which acts as a loading pipe, made in the form of a cylindrical pipe with holes for material outlet in the lower part, discharge pipe concentrate and discharge pipe tailings, characterized in that the hub is additionally equipped with a roar, and with a flat outer riffle E, made at an angle to the cone cup.

Comparative analysis with the analogue shows that in the proposed embodiment, the output of the concentrate is carried out continuously, whereas in the analogue this happens cyclically. Therefore, the proposed utility model meets the criterion of "novelty."

Unlike the prototype, where the principle of continuous separation also applies, in the proposed embodiment, the nature of the movement and distribution of solid particles on the working surface fundamentally changes. The mass is loosened and distributed evenly on it. Thus, the formation of sand "blockages" and corridors of "breakdown" between them is excluded, which allows the material to be divided by density more qualitatively. The removed material of the light fractions moves mainly on top of the rotating surface. Heavy minerals sink into the grooves of the grooves and sink into the direction of the discharge port of the concentrate. As a result, the quality of enrichment is significantly improved by trapping thin classes of useful components. In addition, part of the work necessary to remove low-density minerals is redistributed to centrifugal force, which, in comparison with steeply inclined separators, allows the use of very low flow rates simultaneously with an increase in productivity. In turn, the use of low flow rates allows for finer separation of minerals by their density.

Thus, a comparative analysis allows us to conclude that the criterion of "utility model".

The essence of the utility model is illustrated by the drawing in figure 1.

A continuous rotating hub consists of a funnel for loading material 1, a drive shaft acting as a loading pipe 2 made in the form of a cylindrical pipe with expansion on the bottom, screen 3, conical bowl 4, body 5, discharge pipe of concentrate 6, discharge pipe of tailings 7, grooves 8.

The source material is fed through a funnel for loading material 1 into the drive shaft acting as loading nozzle 2, from there it enters a screen 3 with a certain sieve diameter, small sifted material enters the conical bowl 4, of which heavy minerals are fluted along the corrugations 8, and are discharged through the discharge nozzle of the concentrate 6, and light minerals enter the tailings discharge port 7. The bulk material is also unloaded through the tailings discharge port 7.

In general, the concentrator, thanks to its distinguishing features, provides a more complete extraction of heavy minerals and high productivity.

Claims (1)

A continuous rotating hub, consisting of a housing, a conical bowl, a drive shaft, acting as a loading nozzle, made in the form of a cylindrical pipe with holes for material outlet in the lower part, a concentrate discharge nozzle and a tail discharge nozzle, characterized in that the concentrator is additionally equipped with a rattle and flat outer flutes made at an angle on a conical bowl.