SU1570784A2

SU1570784A2 - Flotation pneumatic machine

Info

Publication number: SU1570784A2
Application number: SU884453935A
Authority: SU
Inventors: Павел Григорьевич Воронин; Юрий Георгиевич Колмогоров; Борис Михайлович Михин; Вячеслав Григорьевич Огурцов
Priority date: 1988-07-07
Filing date: 1988-07-07
Publication date: 1990-06-15

Abstract

Изобретение относитс к обогащению полезных ископаемых флотацией. Цель - повышение показателей процесса флотации за счет равномерного распределени пульпы из эрлифта 4. Внутри ванны 1 с пенным порогом 20 расположены трубчатые пневматические аэраторы 2. Под аэраторами 2 расположены наклонные пластины 3 треугольной формы. У вертикального катета пластин 3 расположен эрлифт 4 с продольными выпускными верхним 5 и нижним 6 окнами, расположенными выше и ниже пенного порога. Окна 5 и 6 в шахматном пор дке перекрыты перегородками 7 и 8 и вместе с ними образуют выпускные чейки 9 и 10, расположенные соответственно перегородкам 7 и 8 в шахматном пор дке. Под эрлифтом 4 на дне ванны 1 установлена воздухоподвод ща коробка с клапаном дл подачи сжатого воздуха. Минеральные частицы пульпы в ванне 1, оседа на пластины 3, скатываютс к эрлифту 4. Поднима сь в эрлифте 4 , пульпа разгружаетс через чейки 9 и 10 окон 5 и 6, поступа под пенный слой и на пенный слой, создаваемый благодар пузырькам воздуха, выход щим из аэратора 2. Сфлотированные частицы удал ютс через порог, а не сфлотированные оседают на пластины 3 и вновь засасываютс в эрлифт 4. 4 ил.This invention relates to the enrichment of minerals by flotation. The goal is to increase the performance of the flotation process due to the uniform distribution of pulp from the airlift 4. Inside the tub 1 with a foam threshold 20 there are tubular pneumatic aerators 2. Under the aerators 2 there are inclined plates 3 of a triangular shape. At the vertical leg of the plates 3 there is an airlift 4 with longitudinal top 5 and bottom 6 windows, located above and below the foam threshold. Windows 5 and 6 in a checkerboard pattern are overlapped by partitions 7 and 8 and together with them form outlet cells 9 and 10, arranged respectively by partitions 7 and 8 in a checkerboard pattern. An air supply box with a valve for supplying compressed air is installed under the air-lift 4 at the bottom of the bath 1. The mineral particles of the pulp in bath 1, settling on the plates 3, roll down to the airlift 4. Raising in the airlift 4, the pulp is discharged through the cells 9 and 10 of windows 5 and 6, entering under the foam layer and onto the foam layer created by air bubbles, exit From the aerator 2. The floated particles are removed through the threshold, and the non-floated particles are deposited on the plates 3 and re-sucked into the air-lift 4. 4 sludge.

Description

The invention relates to the enrichment of mineral flotation. The goal is to increase the performance of the flotation process due to the uniform distribution of pulp from the airlift 4. Inside the bath 1 with a foam threshold 20 are tubular pneumatic 2

Aerators 2. Under the aerators 2 are inclined plates 3 of a triangular shape. At the vertical leg of the plates 3 is airlift 4 with longitudinal exhaust top 5 and bottom windows 6, located above and below the foam threshold. Windows 5 and 6 are staggered overlapped by partitions 7 and 8 and together with them form outlet cells 9 and 10, located respectively by partitions 7 and 8. in staggered order. Under the air-lift 4 at the bottom of the bath 1 there is an air supply box with a valve for supplying compressed air. The mineral particles of the pulp in bath 1, settling from plate 3, roll to the airlift 4. Rising in the airlift 4, the pulp is discharged through cells 9 and 10 of windows 5 and 6, entering _Λ under the foam layer and onto the foam layer created by 5δ due to bubbles air leaving the aerator 2. The floated particles are removed through the threshold, and the non-floated particles are deposited on the plates 3 and re-sucked into the air-lift 4. 4 sludge. -

FIG. 2

3

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four

The invention relates to the enrichment of minerals by flotation, in particular to devices for its implementation, and can be used in the processing of ore and non-metallic materials.

The aim of the invention is to improve the performance of the flotation process due to a more uniform distribution of the pulp from the airlift.

FIG. 1 shows a flotation pneumatic machine, a transverse vertical section; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. 2; in fig. 4 shows a section B-B in FIG. 2

The flotation pneumatic machine consists of a bath 1, inside of which are placed tubular pneumatic aerators 2, under which are inclined planes 3 of triangular shape. At the vertical leg of plane 3, an er ^ elevator 4 is installed with upper and lower longitudinal outlets 5 and 6, partitioned in chessboard order by partitions 7 and 8, forming together with them outlet cells 9 and 10, arranged respectively by partitions 7 and 8 in chessboard order. At the exit of the lower longitudinal outlet window 6, below it, on the airlift 4, a curved visor 11 is installed, and above the upper window 5 on the airlift there is an air separator 12 with holes 13 for exhausting air. Under the bottom of the airlift 4 at the bottom of the bath 1 is installed. an air supply box 14 with a valve 15 for supplying compressed air to the air-lift 4. The box 14 is in communication with the air supply manifold 17 by means of the air duct 16. At the end wall of bath 1, there is a loading pocket 1.8, and on the other end wall there is an unloading pocket 19. Above bath 1 at the foam threshold 20 is located foam 21. At the same time, the lower windows 6 are located below the foam threshold, and the upper windows 5 are above.

Pneumatic flotation machine operates as follows.

The original pulp through the loading pocket 18 enters the bath 1, where it descends along inclined planes 3. Compressed air from the collector 17 goes through the connecting pipe 16 to the air inlet box 14 and tubular pneumatic aerators 2. Due to the pressure difference in the bath 1 and in the airlift 4 the pulp captured last, rises and unloads through the outlet cells 9 and 10 of the lower 6 and upper 5 outlet windows, respectively below and above the foam threshold

20. Due to curved visors 11, a part of the pulp entering the bath 1 from the lower windows 6 is directed to the foam threshold 20, and the rest of it is fed through the upper windows 5 to the foam layer formed by the operation of the aerators 2. The foam together with the floated particles is removed through Foam threshold 20 foam foam 21, and the non-floated particles descend on plane 3 and follow them to the air inlet opening 4, after which the process is repeated several times. Flotation tails from the last plane, 3 are sent to the discharge pocket 19, from which they are removed from the bath 1. The placement of the discharge cells 9 and 10 in a staggered manner avoids the intersection of the descending flow of pulp from the top window 10 with the air bubbles rising from the aerator mineral particles of large classes.

Claims

Claim

Flotation pneumatic machine according to ed. St. No. 616726, characterized in that, in order to improve the performance of the flotation process due to the uniform distribution of the airlift pulp, the machine is equipped with jumpers overlapping the upper and lower longitudinal outlet windows in a checkerboard pattern.

1570784