SU738971A1

SU738971A1 - Apparatus for pneumatic transportation and drying of granular materials

Info

Publication number: SU738971A1
Application number: SU782678501A
Authority: SU
Inventors: Геннадий Владимирович Милях
Original assignee: Milyakh Gennadij V
Priority date: 1978-10-12
Filing date: 1978-10-12
Publication date: 1980-06-05

Description

1one

Изобретение относитс к пневмотранспорту и может быть использовано в различных отрасл х промышленности, например в строительстве, дл перемещени и сушки сыпучих материалов.This invention relates to pneumatic conveying and can be used in various industries, such as construction, for moving and drying bulk materials.

Известно устройство дл пневматического перемеш,ени и сушки сыпучих материалов , содержащее наружную трубу и коаксиально размещенную в ней внутреннюю транспортную трубу, в стенке которой выполнены каналы, расположенные по винтовой линии касательно к ее внутренней поверхности 1.A device is known for pneumatic mixing, drying and drying of bulk materials, comprising an outer tube and an inner transport tube coaxially disposed therein, in the wall of which channels are made that are located along a helical line relative to its inner surface 1.

Недостаток известного устройства заключаетс в том, что транспортирование сыпучих материалов в режиме значительных скоростей истекаюш;его через каналы теплоносител вызывает большие сопротивлени перемещению материала, особенно в загрузочной части устройства.A disadvantage of the known device is that the transportation of bulk materials in the mode of significant speeds expire, and through the coolant channels it causes great resistance to the movement of material, especially in the loading part of the device.

Кроме того, по мере удалени от стенок транспортной трубы воздействие истекающего теплоносител на материал уменьшаетс , и центральна зона транспортной трубы практически не используетс дл перемещени материала вследствие потери скоростиIn addition, as the transport pipe moves away from the walls, the effect of the expiring heat transfer medium on the material decreases, and the central zone of the transport pipe is practically not used to move the material due to the loss of speed.

его частиц, что в целом уменьшает эффективность процесса транспортировани .its particles, which generally reduces the efficiency of the transportation process.

Цель, изобретени - повышение эффективности процесса транспортировани материала.The goal of the invention is to increase the efficiency of the material transportation process.

5Цель достигаетс тем, что внутри транспортной трубы по ее длине установлен направл ющий винт, причем винт и винтова лини имеют одинаковый, посто нно увеличивающийс в направлении транспортировани щаг.The goal is achieved by the fact that a guide screw is installed along its length along the length of the transport tube, the screw and the screw line having the same, constantly increasing in the direction of transport of the schag.

toНа фиг. I схематично изображено предлагаемое устройство, общий вид; на фиг. 2 узел I на фиг. 1; на фиг. 3 - сечение А-А на фиг. 2.To FIG. I schematically depicts the proposed device, a general view; in fig. 2, node I in FIG. one; in fig. 3 is a section A-A in FIG. 2

Устройство дл пневматического транспортировани и сушки сыпучих материалов Apparatus for pneumatic conveying and drying bulk materials

15 содержит загрузочный орган 1, соединенный с транспортной трубой 2, размещенной в. наружной трубе 3 с образованием между ними кольцевого зазора «а. К наружной трубе 3 присоединен патрубок 4, через который под15 contains the boot body 1 connected to the transport pipe 2, located in. outer tube 3 with the formation between them of the annular gap "and. To the outer pipe 3 is attached pipe 4, through which under

20 давлением подают теплоноситель (газ). В стенке трубы 2 выполнены наклонные в направлении транспортировани каналы «б, расположенные по винтовой линии вдоль трубь 2, касательно к ее внутренней поверх73897120 pressure serves coolant (gas). In the wall of the pipe 2, the channels “b” are inclined in the direction of transport, arranged along a helical line along the pipe 2, which is tangent to its internal surface.

Claims

3 features. The screw line has a constantly increasing direction in the direction of the nitration. .... ", ....,",.,. "...,. ™, a.": A: .. Inside the pipe 2, a guide screw 5 is installed, the schag which is equal to the helix pitch. The bulk materials are discharged through the discharge port 6. The device operates as follows. Through pipe 4 in the annular gap "and between the pipes 2 and 3 serves under the pressure of the coolant. At the same time through the loading body 1 bulk material is fed into the transport pipe

2. The streams of compressed coolant flowing out of the channels “b” swirl on the inner surface of the pipe 2, capture the bulk material and, intensively mixing it, move it in a vortex directional flow along the guide screw. lost speed and fell on the plane of the screw. Their perpetrator jockey accomplishes like moving along an inclined plane, which requires insignificant forces from the outflowing jets of the coolant. Due to the fact that the pitch of the helix and the pitch of the screw 5 are made continuously increasing in the direction of transport, the resistance to the movement of bulk materials is significantly reduced, especially in the loading part of the device. The use of a guide screw also makes it possible to effectively move the bulk material to a higher level. Apparatus of the Invention A device for pneumatic transportation and dry bulk materials comprising an outer tube and an inner transport tube coaxially disposed therein, in the wall of which channels are arranged along a helical line relative to its inner surface, in order to increase the efficiency of the transportation process of the material, inside the pipe of the transport pipe, along its length, a guide screw is installed, the screw and the screw line having the same, constantly increasing in the direction the process of transportation step. Sources of information taken into account during the examination 1. USSR author's certificate in application No. 2483519 / 27-11, cl. In 65 G 53/00, 1977.