SU975124A1

SU975124A1 - Vibration separator

Info

Publication number: SU975124A1
Application number: SU813306555A
Authority: SU
Inventors: Петр Митрофанович Заика; Анатолий Петрович Тарасенко; Алексей Иванович Завгородний; Алексей Васильевич Богомолов
Original assignee: Харьковский Институт Механизации И Электрификации Сельского Хозяйства
Priority date: 1981-06-23
Filing date: 1981-06-23
Publication date: 1982-11-23

Description

(54) ВИБРАЦИОННЫЙ СЕПАРАТОР(54) VIBRATION SEPARATOR

Изобретение относитс к .технике сепарировани сыпучих материалов и , может быть использовано дл обогаще-1 ни различных полезных ископаемых в горнорудной, строительной промьполен- ност х и сельском хоз йстве, а также других отрасл х народного хоз йства .The invention relates to the technique of separation of bulk materials and can be used to enrich more than 1 various minerals in the mining, construction industry and agriculture, as well as other branches of the national economy.

Известен сепаратор, включающий подпружиненную .наклонную фрикционнуюЬоверхность , приводимую в колебательное движение вибратором, приводное приспособление, питатель, приемники продуктов разделени и механизмы регулировки наклонов сепарирующей поверхности , в продольном и поперечном направлени х Cl.J.A separator is known that includes a spring-loaded, inclined friction surface driven by an oscillator, a drive device, a feeder, receivers of separation products and tilt adjustment mechanisms of the separating surface in the longitudinal and transverse directions of Cl.J.

Недостатком вл етс заниженна полнота разделени смесей в случа х, если обрабатываема смесь имеет включени , частично обладаннцие свойствами как плоских, так и округлых частиц.The disadvantage is the underestimated completeness of the separation of mixtures in cases where the mixture being processed has inclusions, partially possessing the properties of both flat and rounded particles.

Нсшболее близким по технической сущности и достигаемому результату к предлагаемому вл етс вибраци , онный сепаратор, включаю1ф й вибратор, фрикционную поверхность, наклоненную в продольном и поперечном направлени х , питающее приспособление и приемники продуктов разделени 2.What is closer to the technical essence and the achieved result to the present invention is a vibration, an on-line separator, an included vibrator, a friction surface inclined in the longitudinal and transverse directions, a power supply and receivers of separation products 2.

Недостатком вл етс низкое качество сепарации. Траектори частиц. смеси существенно.зависит от их формы, Плоские частицы характеризуютс относительно невысоким расположением центра т жести. Поэтому, попада на вибрирующую поверхность, они переШ мещаютс по ней плашм (не кувыркаютс ). Перемещение таких частиц достаточно точно описываютс уравнени ми движени материальной точки . Теоретическое и эксперименталь15 ное исследовани виброперемещени этих частиц показывают, что они в.-. л ютс наиболее транспортабельными, обладают высокой устойчивостью движени и их траектории|.мало отличают20 с О1 расчетных. Они способны перемещатьс вверх по вибрирующей плоскости при сравнительно больших углах ее наклона к горизонту.The disadvantage is the low quality of separation. Particle trajectory. the mixture substantially depends on their shape. Flat particles are characterized by a relatively low center of gravity. Therefore, when they hit the vibrating surface, they are shifted across it flatly (not tumbling). The movement of such particles is quite accurately described by the equations of motion of a material point. Theoretical and experimental studies of the vibration displacement of these particles show that they are c. They are the most transportable, have high stability of movement, and their trajectories differ little 20 with O1 calculated. They are able to move upwards along a vibrating plane with relatively large angles of inclination to the horizon.

Округлые же частицы, попада на Rounded particles, falling on

25 вибрирующую повер:4ность, скатываютс по .. Колебани поверхности только ускор пт процесс скатывани .25 vibrating power: 4ness, roll down on the surface. The oscillations of the surface only accelerate the rolling process.

.Разделение смесей, содержащих только плоские и округлые частицы, .The separation of mixtures containing only flat and round particles,

Claims

30 does not cause difficulties. The completeness of the emission of impurities in such cases reaches 100%. Along with the indicated section, mixtures often include particles which, according to the indicated geometric features, can be classified as intermediate. Such particles are as round; and flat areas of their surface also generalize the properties of both round and flat particles. The mode of their movement depends mainly on how much of the surface they are in contact with the vibrating plane. That is, they can move along a vibrating plane as flat particles, and also similarly rounded. In the first case, they will be emitted together with flat particles, in the second, together with rounded ones. Therefore, the separation quality will be low. The purpose of the invention is to improve the quality: separation. The goal is achieved by the fact that the area of the friction surface located below the feeding device is made with a smaller roughness than the neighboring areas of the friction surface. FIG. 1 shows a vibradion separator, a general view; in fig. 2 - the same, sit over. The separator consists of a friction surface 1, which has a double continuation. But-transverse inclination to the horizontal. geometrically located on the support plate 6 of the bed 7. The unbalance vibrator 8 is attached to the working surface, which is mounted so that the line of action of the disturbing forces passes through the cent. the masses of the oscillating part of the machine and makes an acute angle with the direction of lifting of the working surface. The vibrator is driven by the AC motor 9 through the V-belt transmission 10, the intermediate gear 11 and the elastic clutch 12. There are nine receivers 13 in the vibro-separator to collect the products of the Yeni section. The power supply device 14, attached to the vibrating parts of the machine. Below the loading point, we treat the mixture with a low roughness section 15, which intercepts the friction surface in width. Vibrating separator works as follows. Under the action of the directed vibrations created by the vibrator, the mixture of the starting material from the feeder 14 is fed to the friction surface 1. The flat particles move with a tendency upwards and enter the separation receivers 13. Some of the flat particles fall into the area 15 characterized by a low roughness (slippery area). Here, flat particles acquire greater speed in the direction of descent and change the trajectory of motion to a more steep. Falling from section 15 to the adjacent section, flat particles are braked on the friction surface with a greater roughness and their former trajectories are restored. Due to the averagedness of the properties, the intermediate particles move with a tendency downward and to the side over the top; When they hit section 15, they gain additional speed along the line of the largest slope due to sliding on a smooth surface. At the end of the movement along section 15, when meeting a rough surface of a neighboring section, the inertia force and friction force create a tipping moment acting on the particle and it begins to roll. The oscillation of the friction surface further increases the saturation of the particle with kinetic energy and it is no longer able to switch to a periodic motion like flat particles, but moves rapidly down the friction surface. Thus, in the frictional separator, the possibility of particles of the intermediate fraction together with the planar particles is eliminated, which significantly improves the quality of separation. Claims of the invention A vibrating separator comprising a vibrator, a friction surface inclined in the longitudinal and transverse directions, a power supply device and receivers of separation products, different from each other. By the fact that, in order to improve the quality of separation, the section of the friction surface located below the feeding device is made with a smaller roughness than the neighboring areas of the friction surface. Sources of information taken into account during the examination 1. USSR author's certificate No. 563198, cl. B 07 B 13/00, 1975.

2. Authors certificate of the USSR In 722612, KJ1. B 07 B 13/00, 1978 (prototype).

TWA