RU175575U1 - HYDROSIZER - Google Patents

Abstract

The invention relates to flotation, relates to devices of hydrosizers and can be used to enrich minerals. A hydrosizer is proposed for efficient separation of less dense particles of dispersed material from impurities of denser dispersed material, in which the initial mixture (pulp) is fed towards an upward flow of water, while the apparatus has vertical walls and extends upward from water pipes installed with a gap, distributed across the base of the tank, each pipe is perforated at intervals of about the length and is fed from the common water collector, the gap between these pipes allows you to go down the separated more dense material through the entire base of the tank, characterized in that it further comprises a system of perforated air pipes connected by a common annular manifold, interconnected with a gap and located above the water pipes perpendicular to the walls of the apparatus. The presence of an additional system of air pipes allows you to create a water-air environment in the apparatus, which intensifies the process eparatsii particles due to the ability of some materials to adhere to the air bubbles and float, and the other - to remain in suspension. EFFECT: increased efficiency of the process of hydroclassification of dispersed natural and technogenic materials. 1 of FIG.

Description

The utility model relates to flotation, relates to the devices of hydroseparators (hydroseasers) and can be used for mineral processing.

A typical hydrosizer is a vertical countercurrent apparatus designed for hydroseparation of particles of granular and finely dispersed materials - ores, concentrates, sludges and others. Known hydrosizer company "Floatex separations limited", selected as a prototype (UK Patent No. 1332121 from 07/03/1969, IPC B03B 3/38, 3/34, publ. 03.10.1973). This hydrosizer implements the principle of cramped deposition in an upward flow of water. The initial pulp is fed from above through the central feeding cup, and water is fed towards it through perforated water conduits uniformly distributed over the entire cross-sectional area of the working chamber. Upon receipt, the pulp particles interact with a pre-formed bed, which is in suspension due to ascending water flows. Separating in the central zone of the apparatus, lighter particles are carried off to the upper part of the apparatus and poured into the light collection tray, while denser particles accumulate in the lower conical zone of the apparatus and are periodically unloaded by opening the relief valve. The design of such an apparatus makes it possible to reduce the influence of the fractional composition of materials and to carry out the separation of particles by density under conditions of countercurrent hydroclassification. At the same time, the design of the apparatus does not provide for the possibility of supplying compressed air to increase the efficiency of the process of hydroseparation of materials of natural and technogenic formation.

A similar design has a hydrosizer of Otokumpu Technology Ltd. (Eurasian patent No. 006544 dated 02.06.2003, IPC B03B 5/66, 11/00, published on 02.24.2006), which differs mainly in the features of loading devices and pulp distribution. The disadvantage of this hydrosizer, along with the prototype, is the inability to supply compressed air to the apparatus to improve the conditions of hydroseparation and enrichment of materials.

In the proposed utility model, the task is to increase the efficiency of the process of hydroclassification of dispersed natural and technogenic materials by creating an original design of a hydrosizer.

The problem is solved in that a hydrosizer is proposed for separating less dense particles of dispersed material from impurities of a denser dispersed material, in which the initial mixture (pulp) is fed towards an upward flow of water, while the hydrosizer has vertical walls and is extended upward from water pipes installed with a gap distributed across the base of the tank, each pipe is perforated at intervals along the length and is fed from a common water collector, the gap between these pipes allows you to go down separated more dense material through the entire base of the tank, characterized in that it further comprises a system of perforated air pipes connected by a common annular collector, interconnected with a gap and located above the water pipes perpendicular to the walls of the apparatus. The presence of such a system allows you to create a water-air medium in the apparatus, which intensifies the separation process due to the ability of particles of some materials to adhere to air bubbles and float, while others to remain in suspension. In this case, the air pipe system has the ability to move vertically, which allows you to adjust and select the optimal height of the created air-layer. Air tubes are perforated vertically upward, and water tubes are perforated upward with an opening angle of 90 ° for better mixing and crushing of large air bubbles.

The case of the hydrosizer is cylindrical in shape and has a conical narrowing in the lower part. As shown by experiments, such a design is the most technologically advanced, as well as simple to manufacture and maintain.

The design of the hydrosizer is illustrated in the drawing, where its general view is presented. The hydrosizer includes: a housing containing a cylindrical part 1 and a lower conical part 2, a light fraction collecting unit 3, a light fraction unloading pipe 4, a supply cup 5, a pulp inlet pipe 6, a water supply valve 7, a perforated water pipe system 8, a perforated air system pipes 9 fixed to the rod 10, in the upper part of which a thread is made to ensure the stroke of the rod, the air supply pipe 11, the discharge valve of the dense fraction 12, the discharge pipe of the dense material 13, the valve for adjusting the height of the lift of the air system ear tubes 14. The hydrosizer works as follows. By rotating the valve 14, attached to the stem 10, set the required height of the air pipes 9. Then, using the valve 7, open the water supply and adjust the required flow rate; the pipes 11 are supplied with air of a given pressure, which enters the air manifold and is distributed through the air pipes 9. The pulp is pumped into the supply cup 4 through the pipe 5 and the separation process is started. As the process proceeds, light particles are carried away by air-water flow to the upper part of the apparatus, poured into the collection unit 3 and discharged through the pipe 4. Heavy particles accumulate in the lower conical part 2 and are periodically unloaded through the discharge pipe 13 by opening the valve 12. At the end of the process, the supply pulps stop and, after emptying the apparatus, stop the flow of water and air.

Claims (4)

1. A hydrosizer for separating particles of a less dense dispersed material from an admixture of particles of a denser dispersed material, in which the initial mixture (pulp) is fed towards an upward flow of water, while the apparatus has vertical walls and extends upward from water pipes installed with a gap distributed across the base reservoir, each pipe is perforated at intervals along the length and fed from a common water collector, the gap between these pipes allows you to go down the separated more dense material through cut the entire base of the tank, characterized in that it further comprises a system of perforated air pipes connected by a common annular collector, interconnected with a gap and located above the water pipes perpendicular to the walls of the apparatus. 2. The hydrosizer according to claim 1, characterized in that the air pipe system has the ability to move vertically. 3. The hydrosizer according to claim 1, characterized in that the air pipes have a perforation made vertically upward, and the water pipes have a perforation directed upward with an opening angle of 90 °. 4. The hydrosizer according to claim 1, characterized in that it has a cylindrical body with a conical narrowing in the lower part.

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