SU890047A1

SU890047A1 - Dryer rotor

Info

Publication number: SU890047A1
Application number: SU802893066A
Authority: SU
Inventors: Николай Васильевич Антонишин; Виктор Сергеевич Никитин; Олег Георгиевич Мартынов; Георгий Федорович Пучков
Original assignee: Ордена Трудового Красного Знамени Институт Тепло- И Массообмена Им. А.В.Лыкова Ан Бсср
Priority date: 1980-03-13
Filing date: 1980-03-13
Publication date: 1981-12-15

Description

Изобретение относитс к технике сушки пластмассовой крошки, примен емой дл лить изделий в различных отрасл х промышленности (радиоэлектронной , химической, пищевой и т.д.)The invention relates to a technique for drying plastic chips, used for casting products in various industries (electronic, chemical, food, etc.)

Известны сушилки дл пластмассовой крошки, содержащие корпус с размещенным в нем многоступенчатым ротором , несущим нагреватели flJ.Dryers for plastic chips are known, comprising a housing with a multistage rotor housed therein carrying heaters flJ.

Недостаток ротора в такой сушилке - конструктивна сложность.The lack of a rotor in such a dryer - constructive complexity.

Наиболее близким к предлагаемому вл етс ротор дл сушилки вибровращающегос сло , содержагщй диск с лопаст ми, укрепленными на его верхней и нижней плоскост х, причем лопасть, укрепленна на верхней плос , кости, наклонена в сторону, противоположную направлению вращени диска z.Closest to the present invention, there is a rotor for a dryer of a vibrating bed, containing a disk with blades fixed on its upper and lower planes, and the blade fixed on the upper flat bone is inclined in the direction opposite to the direction of rotation of the disk z.

Недостатками такого ротора вл ютс образование стружки из тех пластмассовых частиц, которые попадают в зазор между стенкой камеры и диском , истирание отдельных частиц о стенки камеры вследствие высокой относительной их скорости, попадание, стружки и отдельных частиц в подроторное пространство, что затрудн ет полную разгрузку материала, в результате чего нова парти крошки , отличающа с , например, по цвету , засор етс старыми остатками. Стру:кка вл етс также причиной за10 клинивани ротора.The drawbacks of such a rotor are the formation of chips from those plastic particles that fall into the gap between the chamber wall and the disk, the abrasion of individual particles on the chamber walls due to their high relative speed, the ingress of chips and individual particles into the under-rotor space, which makes it difficult to completely unload the material As a result, a new batch of chips, such as in color, becomes clogged with old residues. Stru: Kka is also the cause of the rotor's 10 clinics.

Цель изобретени - повышение наделснос1И .The purpose of the invention is to increase the amount of money.

Эта цель достигаетс тем, что лопасти выполнены с закрылками, охва15 тывающими диск по периметру.This goal is achieved by the fact that the blades are made with flaps covering the disk around the perimeter.

На чертеже схематически изображена сушилка с вибровращающимс слоем , имеюща описываемый ротор.The drawing shows schematically a dryer with a vibrating bed having the rotor described.

Внутри цилиндрической камеры 1 , Inside the cylindrical chamber 1,

Claims

20 filled with material, a rotor consisting of a disk 2 with blades 3 and 4 rotated on its upper and lower planes and having flaps 5 covering the disk 2 along the perimeter rotates. The flaps 5 are structurally made as one with one blade or another. The dryer works as follows. Chamber 1 is filled with material. When the rotor rotates, the interaction of the upper blades 3 with a layer of material causes the latter to rotate on which the vibration is superimposed. Particles falling under the disk are displaced to the periphery of the lower blades 4, where they are picked up by the flaps 5 and returned back to the layer. The presence of flaps 5 causes an increased gap between the interdisc 2 and the camera camera. This facilitates the fabrication of the dryer chamber, so that the turning requirements for precision are reduced. At the same time, the gap between the flaps and the chamber walls of several particle diameters completely eliminates chip formation. The presence of the gap also reduces abrasion of the particles on the wall, as the velocity of the particles decreases, adjacent to the wall. Making the scrims 5 in one piece with the corresponding blades not only simplifies the technology of their manufacture and solves the problem of mounting them on the disk, but, mainly, accelerates the removal of particles from behind the wall between the chamber walls and the disk 2. Those particles, which are assembled by the 4 lower arm 4, corresponding to the zakryshkom are more intensively removed from under the disk, as they run onto the flap with a full flow compared to the case when the flap would be installed separately away from the blade. Particles falling on the flap 5 of the upper blade 3, have the opportunity to move when sliding on the flap 5 to the upper blade 3 and as far as possible away from the zone adjacent to the gap. In the end, the implementation of the flap in one piece with the corresponding blades leads to a decrease in the moment of frictional forces on the rotor shaft and, consequently, to an increase in the reliability of the dryer. Claims Rotor of a dryer, preferably a vibrating bed, containing a disk with blades fixed on its upper and lower planes, characterized in that, in order to increase reliability, the blades are made with flaps covering the disk around the perimeter. Sources of information taken into account during the examination 1. German patent number 1923015, cl. 82-a, 31, pub. 1972.

2. USSR author's certificate number 576502, cl. F 26 B 17/10, 1975.