SU749436A1

SU749436A1 - Pneumatic flotation machine

Info

Publication number: SU749436A1
Application number: SU762416372A
Authority: SU
Inventors: Михаил Николаевич Злобин; Виген Иосифович Мелик-Гайказян; Михаил Иванович Ермоленко; Владимир Петрович Кулагин; Виктор Александрович Смольников; Георгий Петрович Пермяков
Original assignee: Якутский научно-исследовательский и проектный институт алмазодобывающей промышленности "Якутниипроалмаз"
Priority date: 1976-10-25
Filing date: 1976-10-25
Publication date: 1980-07-23

Description

Изобретение касается обогащения полезных ископаемых и относится к конструкциям флотационных машин.The invention relates to mineral processing and relates to the construction of flotation machines.

Известна противоточная флотационная машина, включающая камеру, загрузочный $ трубопровод для подачи пульпы и пеноприемник.Known countercurrent flotation machine, including a camera, boot $ pipeline for the supply of pulp and a foam receiver.

Недостатком этой машины является то, .что машина может работать только при жидкотекущих продуктах с избыточным количеством, воды. Кроме того, в машине отсутствует раздельная подача крупного и мелкого материала [1] .The disadvantage of this machine is that the machine can only work with liquid products with excess water. In addition, in the machine there is no separate supply of large and small material [1].

Известна пневматическая флотационная машина, включающая камеру Дилиндрической формы, загрузочное и разгрузочное устройства, пеносборный желоб и устройство для насыщения пульпы воздухом выполненное в виде перфорированных трубок [2}. 20·Known pneumatic flotation machine, including a chamber of a cylindrical shape, loading and unloading devices, foam collecting chute and a device for saturating the pulp with air made in the form of perforated tubes [2}. 20·

Недостатком машины является недостаточно высокая производительность разделения частиц широкого диапазона крупности.The disadvantage of this machine is the insufficiently high performance of particle separation of a wide range of particle sizes.

Цель изобретения - интенсификация разделения частиц широкого диапазона крупности.The purpose of the invention is the intensification of particle separation over a wide range of particle sizes.

Это достигается тем, что загрузочное устройство выполнено в виде цилиндра, днище которого в центре снабжено коническим диском, соединенным с вибратором, а в остальной части перфорировано, при этом камера снабжена емкостью для образования пены, выполненной в виде соединенных основаниями конусов, один из которых, расположенный в цилиндрической части камеры, имеет раструб в вершине и перфорированные трубки внутри^ причем по образующей конуса, расположенного в конической части камеры, размещены перфорированные трубки.This is achieved by the fact that the boot device is made in the form of a cylinder, the bottom of which in the center is equipped with a conical disk connected to the vibrator, and in the rest it is perforated, while the camera is equipped with a container for the formation of foam, made in the form of cones connected by bases, one of which located in the cylindrical part of the chamber, has a bell at the apex and perforated tubes inside; moreover, perforated tubes are placed along the generatrix of the cone located in the conical part of the chamber.

На чертеже изображена предлагаемая машина, разрез.The drawing shows the proposed machine, section.

Пневматическая флотационная машина состоит их камеры 1 цилиндрической формы,’ заканчивающейся патрубком 2 для вывода хвостов, кольцевого желоба 3 с наклонным днищем и патрубком 4 для вы- вода пенного продукта, загрузочного устройства 5, выполненного в виде цилиндра 6, днище 7 которого в центре снабжено коническим диском 8, соединенным с вибратором 9, . а в остальной части перфорировано, загрузочной воронки 10, емкости ⁵11 для образования пены с раструбом 12 в вершине и подводящей трубкой 13, причем к стенкам емкости прикреплен приемный карман 14 с трубой 1.5, а в днище ₁₀емкости вмонтирован аэратор 16, выполненный из перфорированных трубок 17 и подводящего воздух штуцера 18.The pneumatic flotation machine consists of a cylindrical chamber 1, ending with a nozzle 2 for tails, an annular groove 3 with an inclined bottom and a nozzle 4 for the output of the foam product, a loading device 5, made in the form of a cylinder 6, the bottom 7 of which is provided in the center a conical disk 8 connected to a vibrator 9,. and the rest of the perforated, loading funnel 10, capacity ⁵ 11 for the formation of foam with a bell 12 at the apex and a supply pipe 13, and a receiving pocket 14 with a pipe 1.5 is attached to the walls of the container, and an aerator 16 made of perforated is mounted in the bottom of the container ₁₀ tubes 17 and air supply fitting 18.

Машина работает следующим образом.The machine operates as follows.

Камера 1 и емкость 11 для образова- ₁₅ния пены заполняются водой, подается исходный материал в загрузочную воронку 10, предварительно обработанный реагентами,' в приемный карман 14 направляется кондиционированная пульпа. ,₀ The camera 1 and the container 11 for the formation of foam Nia ₁₅ are filled with water, the starting material is fed into the hopper 10, pretreated with reagents' into the receiving pocket 14 is directed conditioned pulp. ₀

Материал из загрузочной воронки 10 .Material from feed hopper 10.

посредством загрузочного устройства 5 распределяется равномерно по его площади и подается непосредственно на пенный слой, движущийся из емкости 11 для . ₂₅ образования пены к кольцевому желобу 3. Гидрофобизированньхе частицы исходного крупного материала, двигающегося в зонесепарации сверху вниз под действием силы тяжести, задерживаются в пенном слое ₃θ и вместе с пеной транспортируются в желоб 3 и по нему перемешаются к патрубку 4.by means of the loading device 5 is distributed evenly over its area and fed directly to the foam layer moving from the tank 11 for. ₂₅ formation of foam to the annular groove 3. The hydrophobized particles of the initial coarse material moving in the separation zone from top to bottom under the influence of gravity are retained in the foam layer ₃ θ and together with the foam are transported into the groove 3 and mix through it to the nozzle 4.

Флотационноактивные зерна пульпы, выходя из приемного кармана 14 и падая вниз, навстречу поднимающимся из аэратора 16 пузырькам воздуха, закрепляются на их поверхности, попадают в пенный . спой снизу и вместе с ним также направляются к патрубку 4. 40Flotation-active pulp grains, leaving the receiving pocket 14 and falling down, towards the air bubbles rising from the aerator 16, are fixed on their surface and fall into the foam. sing from below and with it also go to pipe 4. 40

Гидрофильные частицы материала разгружаются через патрубок 2 в конической части машины, образуя хвостовой продукт разделения.Hydrophilic particles of the material are discharged through the pipe 2 in the conical part of the machine, forming a tail separation product.

При этом в пульпе поддерживается ₄₅повышенная концентрация реагентов, необходимая для усиления капиллярного механизма закрепления частиц на пузырьках воздуха.At the same time, an increased concentration of reagents is maintained in the pulp ₄₅ , which is necessary to enhance the capillary mechanism of particle fixation on air bubbles.

Вода, непрерывно подаваемая через патрубок 18 в емкость 11 для образовав· ния пены, содержит пенообразователь в небольших количествах, необходимых для оптимизации гистерезисного механизма.Water continuously supplied through the pipe 18 to the foam container 11 contains a foaming agent in small quantities necessary to optimize the hysteresis mechanism.

Регулировка процесса сепарации в ма> шине обеспечивается путем изменения по-., дачи воздуха в аэратор 16, воды в емкость 11 для образования пены, исходного материала из загрузочной воронки'10 и с гупьпой реагентов, а также изменениями отверстий в днище загрузочного устройства и высоты загрузочного устройства над камерой. .The adjustment of the separation process in the machine is ensured by changing the flow rate, air supply to the aerator 16, water into the container 11 to form foam, the starting material from the loading funnel'10 and with a gage of reagents, as well as by changing the openings in the bottom of the loading device and height boot device above the camera. .

Использование машины позволяет повысить производительность и эффективность разделения частиц широкого диапазона крупности, и обеспечивает раздельную подачу крупного материала на пену и мелкого под пену.Using the machine allows to increase the productivity and efficiency of the separation of particles of a wide range of particle size, and provides a separate supply of large material to the foam and fine under the foam.

Claims

(54) PNEUMATIC Invention relates to mineral processing and relates to designs of flotation machines. A known countercurrent flotation machine comprising a chamber, a loading pipe for feeding the pulp and a foam receiver. The disadvantage of this machine is that the machine can only work with liquid-running products with an excess amount of water. In addition, there is no separate supply of coarse and fine material in the machine 1. Known pneumatic flotation machine, which includes a cylinder of KCJft mold, a loading and unloading device, a foam chute and a device for saturation of the pulp with air made in the form of perforated tubes 2. The disadvantage of the machine is the separation capacity of particles of a wide range of grain. FLOTATION MACHINE:,, -l - .f, vt - о С: SR.- “-l-л. . The purpose of the invention is to intensify the separation of particles of a wide range of size. This is achieved by the fact that the loading device is made in the form of a cylinder, the bottom of which is provided with a conical disk connected to a vibrator in the center, and perforated in the rest of the chamber, while the chamber is equipped with a container to form a foam made in the form of connected bases of cones, one of which located in the cylindrical part of the chamber, has a bell at the apex and perforated tubes inside, moreover, forming a cone located in the conical part of the chamber / placed ne (forged tubes. In the drawing, pneumatic flotahoning machine with chamber 1 of cylindrical shape, 1 (: a spout 2 for outputting tailings, an annular gutter 3 with an inclined bottom and nozzle 4 for outputting a foam product, a loading device 5 made in the form of a cylinder 6, the bottom 7 of which is provided in the center with a conical disk 8 connected to the vibrating alternator 9, and the remainder is perforated, the loading thief 1O, the container And to form 1 foam with the socket 12 at the top and the feeding pipe 13, to the walls of the container The receiving pocket 14 with a tfQ-arm 1.5 is fastened, and an aerator 16, made of perforated tubes 17 and air inlet fitting 18, is mounted in the bottom of the tank. The machine works in the same way. The chamber 1 and the tank 11 to form the foam are filled with water, the raw material is fed into the feed funnel 10, pre-treated with reagents, conditioned pulp is sent to the receiving pocket 14. The material from the hopper 1O is distributed uniformly over its area through the loading device 5 and is fed directly to the foam layer moving from the tank 11 to form foam to the annular groove 3 Hydrophobic particles of the starting cool material, moving downwards under gravity , are retained in the foam layer and, together with the foam, are transported into the chute 3 and are moved along it to the nozzle 4, flotation-active pulp grains, the exit from the receiving pocket 14 and the pad down, the air bubbles rise out of the aerator 16; the air bubbles, attached to their height, enter the frothy one. The bottom and together with the NSL are also directed to the nozzle 4. The hydrophilic particles of the material are discharged through the nozzle 2 in the conical part of the machine, forming the tail separation product. At the same time, an increased concentration of reagents is maintained in the pulp, which is necessary for enhancing the capillary mechanism for fixing particles on air bubbles. The water continuously supplied through the nozzle 18 to the tank -11 to form the pengs contains the foaming agent in small quantities necessary for optimizing the hysteresis mechanism. Adjustment of the separation process in the machine is provided by changing the air supply to the aerator 16, water to the tank 11 to form foam, raw material from the feed hopper 10 and with the slurry of reagents, as well as changes to the holes in the bottom of the loading device and the height of the loading device above the camera. . The use of the machine allows to increase the productivity and efficiency of separation of particles of a wide range of size, and provides separate feeding of coarse material to the foam and fine to the foam. Claim 1. Pneumatic flotation machine, comprising a cylindrical conical chamber, loading and unloading devices, a foam collecting chute and a device for saturating pulp with air, made in the form of perforated tubes, in order to intensify the separation of particles of a wide range of sizes, the loading device is made in the form of a cylinder, the bottom of which is provided in the center with a conical disk connected to the vibrator, and the rest is perforated with the chamber To form a foam made in the form of cones joined by the base, one of which is located in the cylindrical part of the chamber has a bell at the top and perforated tubes inside. 2. A pneumatic flotation machine according to claim 1, characterized in that the perforated tubes are dispersed in the cone forming in the conical part of the chamber. Sources of information taken into account during the examination 1. USSR author's certificate No. 440161, cl. B 030 1/24, 1972.

2. USSR author's certificate number 478615, cl. In 0301/24, 1975 (prototype).