SU1546165A1 - Apparatus for conditioning pulp - Google Patents

Abstract

This invention relates to the beneficiation of minerals. The goal is to improve the performance of the flotation process by reducing the consumption of reagents. The pulp conditioning apparatus comprises a housing 1 divided by a threshold 2 into a chamber (K) 3 of an input and a K 4 processing of the pulp. On the upper edge of the threshold 2 are installed trays (L) 5, inclined at different angles to the horizontal. Under L 5 there are accommodations 6 for supplying flotation reagents in the form of an aerosol. Above K 4 there is a separating L 10, in the middle part of which there is a turbulent threshold 11. Under L 10 and K 4 there is a pipe 8 for pulp supply, in which the pipeline (TP) 12 is installed, the upper end of which is located above the pulp level, and the lower end connected to L 10 and aligned with the edge of the threshold 11 on the K 3 side. The lower part of K 4 is connected to its upper part with the help of TS 9 for suctioning the reagent aerosol. The pulp divider 7 is connected to the bottom of the K 4. Through the nozzle 8, the pulp enters L 5 and TP 12. Minus threshold 11, the pulp meets with the upward flow from TP 12. The particles are weighed and continue to travel along L 5. The upper part of the pulp flow, enriched with particles with a particle size of less than 0.04 mm, it is cut off by a cut-off plate 15 and enters the diversion tube L 16, from where it is sent to the tails. The rest of the pulp enters K 3, from which, overflowing through threshold 2, flows from L 5 in the form of jets to K 4. The pulp jets are treated with reagent aerosol and pooled

Description

connected to L 10 and aligned with the edge of the threshold 11 from the K 3 side. The lower part of the K 4 is connected to its upper part with the help of T1I 9 for sucking the reagent aerosol. To the bottom of K 4, the pulp divider 7 is attached. Through the nozzle 8, the pulp enters L 5 and TP 12. Minus threshold 11, the pulp meets with

on particles with a particle size of less than 0.04 mm, it is cut off by a 15 n cutting plate and is fed into the outlet A 16, from where it is sent to the tails. The rest of the pulp enters K 3, from which, overflowing through threshold 2, flows from L 5 in the form of jets to K 4. The pulp jets are treated with aerosol

This process proceeds from TP 12. The particles of the veve reagents and enter the pulp are subdivided and continue to travel along L 5. The tel 7, from where they are sent to the fleet - the upper part of the pulp flow, is an enrichment process. 2 hp f-ly, 2 ill.

The invention relates to the field of mineral processing, in particular, devices for treating pulp with reagents prior to the flotation process.

The aim of the invention is to increase the performance of the flotation process by reducing the consumption of reagents.

FIG. 1 shows a frontal section of a pulp conditioning apparatus; in fig. 2 - frontal section of the apparatus with two pulp processing chambers.

The pulp conditioning apparatus comprises a housing 1 divided by a threshold 2 into two chambers: a pulp feed chamber 3 and a pulp processing chamber 4. Trays 5 are attached to the upper edge of the threshold 2; they are inclined at different angles to the horizontal, and devices 6 for supplying flotation agents in the form of an aerosol are installed under the trays 5. Pulp suppressor 7 is connected to the bottom of the pulp processing chamber 4. A branch pipe 8 for supplying the pulp is located above the processing chamber 4. The lower part of the treatment chamber 4 is connected to its upper part by means of a pipe 9 for suctioning an aerosol of reagents that have passed through the pulp layer. Under the nozzle 8 for feeding the pulp, there is a separating tray U, in the middle part of which there is a turbulence threshold 11. Inside the nozzle 8 for feeding the pulp there is a pipeline 12 with a conical nozzle 13 in its upper part. Pipeline 12 is connected to Ј by separating chute 10 and is aligned with the edge of the turbulizing threshold 1 1 from the side of chamber 3 of the input. On the wall of the housing 1 above the inlet chamber 3 there is a device 14 for adjusting the location of the compartment

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A spherical plate 15 pivotally connected to a discharge chute 16. A second pulp processing chamber 17 arranged similarly to chamber 4 can be connected to an input chamber 3 on the side of the opposite processing chamber 4.

The pulp conditioning apparatus operates as follows.

Through the pipe 8, the pulp enters the separating tray 10, part of the pulp from the pipe 8 through the conical nozzle 13 enters the pipeline 12. In the tray 10, the pulp partially loses speed and moves along the tray 10, around the turbulizing threshold 11. The pulp flow past the turbulating threshold 11 collides with a stream of pulp exiting duct 12 and directed upwards. As a result of turbulence and collision of pulp flows in tray 10 beyond the turbulizing threshold 11, an upward flow is created which entrains the mineral particles to the surface of the pulp flow. Further, when the pulp moves along tray 10, large and heavy particles are lowered, and small and light particles do not have time, as they are cut off by a slam-shut plate 15 and together with the upper layer of pulp (saturated with particles of minerals smaller than 0.04 mm) enter tray 16, from which the pulp is removed into the flotation tailings or is combined with the coarse-grained part of the pulp before the flotation process. The coarse-grained part of the pulp from the separating tray 10 is poured into the chamber 3 of the inlet, from which, min, the threshold 2 flows from the trays 5 in the form of a jet system into the chamber 4 of the treatment. The pulp jets falling from the trays 5 from the device 6 are treated with flotation reagent aerosol, after which the pulp through

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Claims (3)

Claim 1. The apparatus for conditioning the pulp, comprising a housing, separated by a threshold on the pulp input chamber; and a processing chamber, trays mounted on the upper edge of the threshold and inclined at different angles to the horizontal, placed under the trays of the device for feeding flotation; of reagents in the form of an aerosol, a nozzle for supplying pulp mounted above the housing, connected to the treatment chamber, a pulp splitter and a pipeline connecting the upper part of the treatment chamber q with its lower part, characterized in that, 165 ⁶ in order to increase the flotation process by reducing the consumption of reagents, the apparatus is equipped with a separation tray installed above the processing chamber and connected to the input chamber with a turbulent threshold in its middle part and a shut-off device installed in the pipe pulp supply pipe, the upper end of which located above the separating tray, and the lower end is connected to the separating tray and aligned with the edge of the turbulizing 5 of the threshold from the side of the input chamber, while the shut-off device is placed on the wall of the housing above the input chamber and is made of a by-pass tray pivotally mounted on the tray of the cut-off plate and the associated adjustment device. 2. The apparatus according to p. ^ Characterized in that the upper part of the pipeline is conical. '5 3. The device according to paragraphs. 1 and 2, characterized in that in order to increase productivity, it is equipped with an additional camera An IQ of the bot connected to the input chamber and mirrored to the main processing chamber. FIG. 2