SU787109A1

SU787109A1 - Loose material sorting apparatus

Info

Publication number: SU787109A1
Application number: SU782648079A
Authority: SU
Inventors: Петр Митрофанович Заика; Дмитрий Иванович Мазоренко; Анатолий Петрович Тарасенко; Алексей Иванович Завгородний; Алексей Васильевич Богомолов
Original assignee: Харьковский Институт Механизации И Электрификации Сельского Хозяйства
Priority date: 1978-07-24
Filing date: 1978-07-24
Publication date: 1980-12-15

Description

(54) УСТРОЙСТВО ДЛЯ СОРТИРОВКИ СЫПУЧИХ МАТЕРИАЛОВ(54) DEVICE FOR SORTING BULK MATERIALS

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Изобретение относитс к устройствам дл разделени сыпучих материалов и может быть использовано в химической, горнорудной промышленности и сельском хоз йстве.The invention relates to devices for the separation of bulk materials and can be used in the chemical, mining and agricultural industries.

Известны зерноочистительные машины, включаюшие врашаюшийс сетчатый барабан и вентил тор, продувающий полость барабана 1J.Grain cleaning machines are known, including a rotating mesh drum and a fan blowing through the cavity of the drum 1J.

Недостатком данного устройства вл етс низка производительность, обусловленна небольшими скорост ми вращени барабана , сложность конструкции и излишние расходы энергии при работе машины.The disadvantage of this device is low productivity due to the low speeds of rotation of the drum, the complexity of the design and the excessive expenditure of energy when the machine is running.

Известны устройства дл разделени материала , включающие цилиндрическое решето со спицами, установленное на вибрирующей оси, и вибратор. Решето кроме вращени совершает пространственные колебательные движени 2.Devices for separating material are known, including a cylindrical sieve with knitting needles mounted on a vibrating axis and a vibrator. In addition to rotation, the sieve performs spatial oscillatory motions 2.

Недостатком этого устройства вл етс небольша производительность, обусловленна тем, что затруднено прохождение через сито продолговатых частиц из-за плохой их ориентации.A disadvantage of this device is the low productivity, due to the fact that it is difficult for elongated particles to pass through the sieve due to their poor orientation.

Цель изобратени - увеличение производительности разделени за счет направленной подачи воздуха.The purpose of the invention is to increase the separation capacity due to the directional air supply.

Указанна цель достигаетс тем, чтоThis goal is achieved by the fact that

спицы решета выполнены в виде лопастей,the sieve needles are made in the form of blades,

5 установленных с возможностью создани 5 installed with the possibility of creating

противоположных направленных потоковopposite directed streams

воздуха.of air.

На фиг. 1 представлена конструктивна схема устройства; на фиг. 2 - схема расположени спиц-лопастей обода решета; 10 на фиг. 3 - схема прохождени частицы сквозь отверстие решета.FIG. 1 shows the structural diagram of the device; in fig. 2 shows the arrangement of the spokes-blades of the sieve rim; 10 in FIG. 3 is a diagram of a particle passing through a sieve hole.

Вибрационно-центробежна сортировка содержит цилиндрическое решето 1, вращающеес в подщипниках, воспринимающих переменные осевые усили , на оси 2. Привод вращени решета осуществл етс от электромотора 3 посредством гибкого валика 4 через нат жное устройство 5, жестко закрепленное на оси 2, и клиноременную передачу 6.Vibration-centrifugal sorting contains a cylindrical sieve 1 rotating in sub-carriers that accept variable axial forces on axis 2. The rotation of the sieve is driven from the electric motor 3 by means of a flexible roller 4 through a tensioning device 5 rigidly fixed on the axis 2, and V-belt transmission 6 .

Claims

On the axis there is attached a vibrator consisting of a ring 7, having an internal spherical surface, and a ring 8, having an external spherical surface. The inner ring is bolted to the outer ring. The vibrator ring 7 is set offset from the center of the sheet O K of the swirly part of the sort. The vibrator is driven from the electric motor 9 by means of a flexible roller 10. The ends of the axis of rotation of the cylindrical sieve are supported on elastic elements 11 placed in support posts 12 and 13, which are attached to plate 14. Grain 15 with adjustable valve 16 is attached to support post 13 The unbalance disc 17 is mounted on the shaft 18, which is mounted in the bearings of the inner ring. The cylindrical sieve is closed by a casing 19 having outlet outlets 20 for collecting the passage fraction and 21 for collecting the tail fraction. The rims 22 of slits 1 are mounted on the blade spokes 23. The device operates as follows. The grain material from the hopper 15, the flap 16, goes into the rotating and simultaneously vibrating cylindrical sieve 1. Under the action of centrifugal forces and a small amount of the vertical component of the oscillation amplitude, a uniform annular layer of grain material is formed at the beginning of the sieve. As the cylindrical sieve rotates inside it, an overpressure arises due to the blade spokes 23 and, therefore, directional air flows through the sieve holes. Under the influence of oscillatory actions from the sieve side, the layer of material moves along its wall in the direction of descent, divided into fractions. Moreover, the air flows provide the required orientation of the passage particles, as a result of which the probability of the particles passing through the slit aperture, and, consequently, the separation capacity increases. Apparatus of the device for sorting bulk materials, including a cylindrical plate fixed to the axis with needles, and a vibrator, characterized in that in order to increase separation performance due to directional air supply, the sieve spokes are made in the form of blades that are installed with the possibility of creating opposite directional air flow. Sources of information taken into account in the examination 1. USSR author's certificate number 57675, cl. B 07 B 1/22, 02.02.39.

2. USSR author's certificate number 309750, cl. B 07 B 1/26, 06/22/70.

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