SU1577848A1 - Flotation machine - Google Patents

Abstract

This invention relates to the enrichment of minerals by flotation. The goal is to increase the performance of the flotation process by stabilizing the level of pulp in the flotation cells (K). The flotation machine consists of several successively installed flotation K 1, connected by discharge pockets 2 located between K 1. Inside K 1 are placed devices 5 for aerating and mixing the pulp. Above K 1, foamers 6 are installed. At the upper edges of the walls K 1 there are foam-receiving pockets 7. Pockets 2 consist of K 8 pulp inlet, communicated with the previous K 1, and K 9 located above it, connected to the next K 1. 8 and 9 are communicated by means of a vertical channel 10 formed by an outer 11 and an inner 12 cylinder (C) coaxially mounted in pocket 2. The upper edge of the C 11 is located above the upper edge of the C 12, the lower edge of the C 12 is connected with the following To 1. With the upper edges of the C 11 by using the horizontal channels 13 ring trays 14 are connected. With screws in C 11 and 12, cylindrical adjustment inserts are installed with conical expansion at the bottom. The pulp in K 1 undergoes aeration and mixing with the help of tool 5. The foam product 6 is directed into the pockets 7. Non-floated part of the pulp enters K 8, from where it rises through channels 10 and overflows through the upper edge of C 12. When the load on the flotomachine pulp increases it also overflows through the upper edges of the C 11, channels 13 and chutes 14, which increases the drain perimeter and the accuracy of the pulp level control. The overflow from the pulp from K 9 enters the subsequent K 1. 1 hp f-ly, 4 ill.

Description

the edges of the walls of the flotation chambers 1 - foam receptacles 7. The discharge pocket 2 consists of a pulp feed chamber 8 communicated with the previous flotation chamber 1 and an unloading chamber 9 above it, communicated with the subsequent flotation chamber 1. Between the feed chamber 8 and the discharge chamber 9 communicated by a vertical channel 10 formed by an outer cylinder 11 and an inner cylinder 12 coaxially mounted in the discharge pocket 2, the upper edge of the outer cylinder 11 being located above the upper edge of the inner cylinder 12 and the lower edge of the inner cylinder 12 passes through the input chamber 8 and is connected to the subsequent flotation chamber 1. The annular trays 14 are connected to the upper edges of the outer cylinder 11 by means of horizontal channels 13. In the inner and outer cylinders 12 and AND there are cylindrical adjustment inserts 15 smaller than cylinders 11 and 12 diameters with a conical expansion 16 in the lower part, mounted with screws 17.

Flotomachine works as follows.

The pulp through the feeding device 3 enters the inside of the flotation chambers 1, where it is aerated and mixed using the tool 5. The foamy product from the pulp surface is removed by the foam into the foam receiving pockets 7, and the flotation tails are removed from the last flotation cell 1 through the device 4 for output pulp. Proflotted pulp from the flotation chambers 1 enters the discharge pockets 2, where it first enters the pulp introduction chamber 8, rises through the vertical channel 10 and, overflowing into the inner cylinder 12, enters the subsequent flotation chamber 1. If the pulp feed into the flotation machine decreases, the pulp level in the flotation cell 1 does not change, since it cannot fall below the level of the upper edge of the inner cylinder 12.

If the load on the flotation machine increases, the pulp does not overflow only through the upper edge of the inner cylinder.

12, but also through the upper edge of the outer cylinder 11, which maintains the required level of pulp in chamber 1. Connecting the upper edge of the outer cylinder 11

with annular trays 14 using horizontal channels 13 so that the height of their upper edges coincides with the height of the upper edges of the outer cylinder 11, it is possible to increase the discharge perimeter by several times, which is more accurate

0 stabilizes the pulp level with a sharp increase in the load on the flotation machine. The pulp, which has flowed over the upper edges of the outer cylinder 11, the trays 14 and the channels 13, flows into the discharge chamber, from where it is removed to the subsequent chamber 1.

Claims (2)

1. A flotation machine containing flotation cells connected in series, 0 inside of which are placed a device for aerating and mixing pulp, pentones mounted above the flotation cells, foam receptacles located at the upper edges of the flotation cells 5 chambers, unloading pockets consisting of an unloading chamber, communicated with a subsequent flotation chamber, and a pulp introduction chamber, an input and unloading chamber, are connected to each other by a vertical channel formed by internal and external cylinders coaxially installed in the discharge pocket, the upper edge of the external cylinder is located above the upper edge of the inner cylinder, and the lower edge of the inner cylinder is connected to the subsequent flotation chamber, characterized by 5 by the fact that, in order to increase the flotation process performance by stabilizing the level of pulp in flotation cells, the flotation machine is equipped with ring trays connected by horizontal channels to the upper edges of the outer cylinders, discharge pockets are located between the flotation cells, and the discharge chamber is placed above the pulp feed chamber . 2. A photomachine according to claim 1, characterized in that cylindrical adjusting inserts with conical extensions in the lower part are installed in the outer and inner 5 pax cylinders. fia 2 / fii / gz sixteen