SU1080875A1 - Apparatus for contacting floation pulp with reagents - Google Patents

Abstract

1. A DEVICE FOR CONTACTING A FLOTATION PULP WITH REAGENTS, including a cylinder of a cylindrical shape with a boot collector and a drain pipe, with an impeller, in order to reduce the consumption of reagents by improving the conditions of interaction of reagents with mineral grains of pulp equipped with a heating device made in the form of an annular tank with chutes, fixed coaxially on the shaft from the loading side, and a current-carrying system. 2. The device according to claim 1, characterized in that the body of the heating device is made of an electrically insulating material in the form of double walls, inside which are placed electric heating elements. 3. The device according to claim 1, d and l; In particular, the current-carrying system consists of an adjustable current source and transmitting rings and brushes.

Description

The invention relates to the enrichment of useful deposits, namely, devices for contacting flotation pulp with reagents before the flotation process.

When the finely ground material is enriched by the flotation method, the efficiency of the process largely depends on the completeness of the conditioning of the pulp with reagents. The conditioning process is carried out in standard contact vats.

A known contact tank is widely used when contacting flotation pulp with reagents tlJ.

A disadvantage of this device is the considerable consumption of reagents, due to their high viscosity.

The closest to the invention to the technical essence is a device for contacting flotation pulp with reagents, including a tub of a cylindrical shape with a loading device and a drain pipe and a shaft with an impeller C2

However, the use of substances known to be poorly dissolved in the liquid phase in the known device complicates and worsens the operation of pulp conditioning with reagents.

The purpose of the invention is to reduce the consumption of reagents by improving the conditions for the interaction of reagents with mineral grains of pulp when heated.

The goal is achieved by the fact that the device, which includes a tub of cylindrical shape with a loading device and a drainage nozzle, a shaft with an impeller, is equipped with a heating device made in the form of an annular tank with chutes fixed coaxially on the shaft on the loading side, and a current-carrying system.

Moreover, the body of the heating device is made of electrically insulating material in the form of double walls, inside of which electrical heating elements are placed.

In addition, the current lead system consists of an adjustable current source and transmission rings and brushes.

FIG. 1 shows the proposed device, a general view; on. FIG. 2 shows section A-A in FIG. one.

The device consists of a cylindrical tank 1 with a flat bottom, in the center of which an impeller 3 is mounted on shaft 2, the impeller shaft is rotated by an electric motor 4. On the shaft 2 of the impeller in the upper part of tank 1 a heating device 5 with chutes 6 is fixed, made of electrically insulating material, for example, mika: lexa. At the same time, electric heating elements 7 are embedded in the walls and bottom of the heating device. The inner surface of the heating device 5 is gummed with a layer of rubber 8. Above the heating device there is a pipe 9 for feeding the original pulp and a pipe 10 for feeding reagents. Above the heating device 5 on the shaft .2 there is a sliding collector of the ring-brush-11 type. The electric heating elements 7 are wired through the collector 11 with an adjustable current source 12. The discharge of the preconditioned pulp is carried out through the drain pipe 13.

The operation of the device is as follows.

The original pulp through the pipe 9 and the reagents through the pipe 10 is fed into the heating device 5. At the same time, the electric heating elements 7 maintain the optimum temperature, which facilitates the effective contact of the material with the reagents. The shaft 2 of the impeller 3 rotated by the electric motor 4 provides intensive mixing of the pulp and reagents in the heating device 5 and the subsequent arrival of the projected pulp into the tank 1, where the impeller 3 ensures the subsequent mixing and contact of the pulp with the reagents. The heating of the pulp and reagents in the heating device 5 by the electric heating elements 7 is controlled by means of an adjustable current source 12. The material is discharged through the drain pipe 13.

Tests have shown that, compared with the known device, using the proposed device, the efficiency of contacting the flotation pulp with reagents increases and the consumption of reagents is reduced.

Claims (3)

1. DEVICE FOR CONTACTS Of flotation pulp with reagents, including a cylindrical vat with a loading device and a drain pipe, a shaft with the fact that, in order to reduce the consumption of reagents by improving the conditions for the interaction of reagents with 'mineral pulp grains, it is equipped with a heating device made in the form of an annular tank with estruses mounted coaxially on the shaft from the loading side, and a current-carrying system. 2. The device according to π. 1, characterized in that the housing of the heating device is made of insulating material in the form of double walls, inside of which are placed electric heating elements. 3. The device according to claim 1, wherein the current-conducting system consists of an adjustable current source and transmitting Figure 1 □ about Joint venture