SU513722A1

SU513722A1 - The method of separation of grain mixtures in an electric field

Info

Publication number: SU513722A1
Application number: SU2013357A
Authority: SU
Inventors: Виталий Иванович Апанасенко; Александр Константинович Томащец; Вячеслав Викторович Гиринский; Михаил Ильич Филимонов
Original assignee: Зональное Конструкторское Бюро По Созданию Машин С Применением Электронно-Ионной Технологии
Priority date: 1974-04-04
Filing date: 1974-04-04
Publication date: 1976-05-15

Description

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Изобретение относитс к области очистки сем н сельскохоз йственных культур от различного рода примесей, в частности риса от курм ка.The invention relates to the field of purification of seeds and agricultural crops from various kinds of impurities, in particular rice from chicken.

Известен способ разделени зерновых смесей в электрическом поле в две стадии, на первой из которых смесь подают на наклонное вибрирующее решето, а на второй - в межэлектродное пространство в состо нии свободного падени . При применении данного способа увеличение толщины сло смеси на вибрирующем рещете затрудн ет проход сориентированных примесей через его отверсти и выход их в верхний слой, что снижает эффект разделени . Кроме того, при величине межэлектродного пространства, соизмеримого с данными примес ми, может осуществл тьс вынос полноценного зерна в отходы.A known method of separating grain mixtures in an electric field in two stages, in the first of which the mixture is fed to an inclined vibrating sieve, and to the second to the interelectrode space in a free fall state. When using this method, increasing the thickness of the mixture layer on a vibrating screen makes it difficult for the oriented impurities to pass through its holes and exit them into the upper layer, which reduces the separation effect. In addition, when the value of the interelectrode space, commensurate with these impurities, can be carried out full grain to waste.

С целью улучшени эффекта разделени и уменьшени выноса полноценного зерна в отходы предлагают способ, отличающийс от известного тем, что в начале и конце разделени на решете ее привод т в псевдоожиженное состо ние и одновременно в этих зонах создают разр жение.In order to improve the separation effect and reduce the removal of full grain to waste, a method is proposed that differs from the well-known fact that at the beginning and end of the separation on the sieve, it is fluidized and at the same time creates vacuum in these zones.

На чертеже изображен пример реализации предлагаемого способа дл электросемеочистительной машины.The drawing shows an example of the implementation of the proposed method for electrosurgery machine.

Электросемеочистительна машина содержит наклонное решето 1 с расположеннымThe electrosurgical machine contains an inclined sieve 1 with

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над ним электродом 2, перфорированную диэлектрическую перегородку 3, установленную в конце решета 1, очистительный барабан 4 с полуцилиндрическим электродом 5, диффузоры 6 и 7, располол енные по всей ширине решета и диэлектрической перегородки и соединенные с нагревательными вентил торами 8 н 9, конфузоры 10 и И, установленные над перфорированной поверхностью электродов, иabove it, electrode 2, perforated dielectric partition 3, installed at the end of sieve 1, cleaning drum 4 with semi-cylindrical electrode 5, diffusers 6 and 7, located across the entire width of the sieve and dielectric partition and connected to heating fans 8 and 9, confusors 10 and And installed over the perforated surface of the electrodes, and

отсасывающий вентил тор 12.suction fan 12.

Очистка зерна осуществл етс следующим образом. Зерновую смесь, поступающую на рещето 1, регулировкой напора воздуха вентил тора 8 довод т до псевдоожиженного состо ни . Мелкие примеси и легкие частицы, сориентированные полем в верхнем кип щем слое и имеющие зар д знака рещета 1, прит гиваютс к электроду 2, который непрерывно очищаетс одним из известных способов , например, он быть выполнен с подвижной поверхностью.Grain cleaning is carried out as follows. The grain mixture supplied to solution 1 is adjusted to the fluidized state by adjusting the air pressure of the fan 8. Small impurities and light particles, oriented by the field in the upper fluidized bed and having a charge sign of resista 1, are attracted to the electrode 2, which is continuously cleaned by one of the known methods, for example, it can be made with a moving surface.

Claims

Upon further movement of the mixture in sieve 1, the remaining oriented light particles, as well as unoriented fine impurities, are sieved. By entering the dielectric septum 3, the mixture is re-brought into the fluidized state by means of the fan 9 and then, in the free fall state, enters the interelectrode space formed by the drum 4 and the electrode 5. Full grain granulation, including rice with whiskers, not. Touching the cleaning drum 4, under the action of gravity force, it is poured into the hopper with full grain. The light impurities under the action of the air flow are oriented in the upper fluidized bed, last transferred to the area of strong electric forces, attracted to the cleaning drum 4 and removed from the separation zone. During the operation of the machine, light impurities commensurate with perforated holes in the electrodes and dust are entrained by the air flow created by the fan 12 and removed from the cleaning zone. Thus, the creation of a fluidized state of the cleanse, aemoil of the grain mixture in the electric field between the sieve and the continuously cleaned movable electrode makes it possible to isolate the main light impurity at the beginning of the sieve, to unload its work, and thereby increase the separation effect. In addition, the supply of grain samples from the screening device to the interelectrode space of the cleaning device in a fluidized state reduces the removal of full-grain into the waste and eliminates the capture of light impurities by the grain, which helps to improve the quality of cleaning in the interelectrode spaces above the fluidized bed. and cleaning devices facilitates the removal of light impurities and arranges discharge discharge in the interelectrode space. Claims The method of separation of grain mixtures in an electric field in two stages, the first of which serves the mixture to an inclined vibrating sieve, and the second to the interelectrode space in the state of free fall, characterized in that, in order to improve the separation effect and reduce the removal full grain to waste, at the beginning and end of the separation of the mixture on a sieve, it is brought to a fluidized state and at the same time in these zones create a discharge. Sources taken into account in the examination: a description of a. with. № 401410 from 17.12. 71, class At 03c 7/04.

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