SU1371721A1 - Centrifugal air current separator - Google Patents

Abstract

The invention relates to a device for separating powdered materials according to particle size and m, b. Used in the chemical, construction, mining and other industrial sectors. The purpose of the invention is to increase the production by reducing the complexity of the retooling of the separator. Cylindroconic outer 1 and inner 2 cases (K) of the separator are installed coaxially. Coaxially in K 2 is installed fairing 3, the Lid 4 of the latter and the lid 5 K 1 form the separation zone 6. Between K I and 2 and between the fairing 3 and K 2, twisting vanes 7 and 8 are installed. In the upper part of K 1 there is a nozzle (P) 9 for draining the finished material (M), at the bottom - for P 10 for coarse product. The lower part of K 2 is connected to the P 11 supply of the source M. Inside the P 11, a 2 ° swirling device is installed. Above the last, P 11 is installed coaxially P 11 to supply the flow f 5 C to (L loo

Description

137

the secondary air into the gap between K 1 and 2, shut off from the upper end of P 13 communicates with the gap between K 1 and 2 bypass oKHai i 14. The original M is fed to P 11, where the curler twists 12, Axial lightly dusty flow through P 13 and the window 14 enters the gap between K 1 and 2 and after twisting the blades 7 enters zone 6, forming a centrifugal 21

countercurrent separation flow. The dust-free flow of claim 11 between windows 14 enters the gap between K 2 and fairing 3, twists the blades 8 and enters the central part of zone 6. In the latter, M is divided by size. The small product is removed with gas through P 9, large - through P 10, 3 Il.

one

The invention relates to devices for separating powdered materials according to particle size and can be used in chemical, construction, mining and other industries.

The purpose of the invention is to increase productivity by reducing the separator re-adjustment capacity.

FIG. 1 is schematically depicted.

centrifugal air blower oGG separator, longitudinal section; FIG. 2 is a section A-A on FIG1; on fig.Z - section bb in fig, 2o

The separator consists of coaxially mounted outer and inner 2 bodies and fairing 3, fairing covers 4 and outer housing 5, forming a flat centrifugal counterflow separation zone 6, annular rows of twisting blades 7 and 8, branch pipes for draining off material 9, coarse product 10, pipe 11 supplying the source material connected to the inner case 2, with a twister 12 installed inside it and nozzle 13 for supplying secondary air flow into the gap between the spring 1 and the inner 2 cases, - lushennym;; the upper end and connected with the pipe 11 of the feed of the source material bypass holes 14, extending into the gap between the outer 1 and inner 2 buildings,

The separator works as follows.

The source material with the transporting agent is fed through the pipe 11, where the twisting is twisted.

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5 0 0 5

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five

The chuck is 12 "Under the action of centrifugal forces, the particles of the material are displaced to the periphery of the pipe I1 to form a highly dusty flow and an axial lightly dust flow. The axial flow enters through the nozzle 13 and the bypass openings 14 into the gap between the outer 1 and inner 2 housings, where it is twisted by the blades 7 and enters the flat centrifugal counter-current zone 6 between the lids 4 and 5, forming a centrifugal-countercurrent separating flow. The highly dusty flow through the pipe 11 between the bypass windows 14 enters the gap between the inner case 2 and the fairing 3, twists in the twisting blades 8 and enters the central part of the flat centrifugal zone 6, the initial product is divided in zone 6 by size, and the small product moves to the axes of the apparatus and are brought out together with the gas through the pipe 9, and the large one to the inner surface of the outer casing 1, through which it is lowered and pulled out through the pipe 10,

Separating directly in the separator of the initial gas-dust stream into weakly dusty and highly dusty streams, followed by using a slightly dusty stream as a secondary stream, eliminates the secondary gas pipeline and maintains the cost ratio at a constant level when the flow rate of the original conveyor agent changes.

Formula invented and

Centrifugal airtight separator containing coaxial

installed outer and inner cylinder-conical housings and fairing installed coaxially in the inner housing, escape blades mounted between the outer and inner housing and between the fairing and the inner housing, patrubo feed material, connected to the lower part of the inner housing, branch pipes of the finished and coarse products and a nozzle for supplying secondary air flow to

the gap between the outer and inner housings, due to the fact that, in order to increase productivity by reducing the laboriousness of changeover, the separator is equipped with a curler installed coaxially in the source material supply nozzle, while the fitting for supplying secondary air flow to the gap between the outer and inner housings is located coaxially in the feed pipe of the source material above the swirling device, it is plugged from the upper end and communicated with the gap between the outer and inner housings of the bypass windows.

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flash 2

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Claims (1)

Claim A centrifugal air passage separator containing coaxially mounted outer and inner cylindrical conical housings and a cowl mounted coaxially in the inner body, twisting vanes mounted between the outer and inner inner bodies and between the cowling and the inner body, a supply pipe for the input material connected to the lower part of the inner case , outlet pipes for finished and 15 coarse products and a nozzle for supplying a stream of secondary air into the gap between the outer and inner shells and, characterized in that, in order to increase productivity by reducing the complexity of readjustment, the separator is equipped with an eccurator installed coaxially in the supply pipe of the source material, while the pipe for supplying a secondary air flow into the gap between the outer and inner bodies is located coaxially in the supply pipe of the source material above the screwdriver, muffled from the upper end and communicated with a gap between the outer and inner cases bypass windows. L-4 FIG 2 Bb fig 3