SU1207943A1 - Pneumatic feeder of loose material - Google Patents

Description

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The invention relates to devices for unloading and packaging of external materials and can be used in the chemical, metallurgical, food industry.

The aim of the invention is to improve the reliability of operation and service life.

The drawing shows a pneumatic feeder section.

Pneumatic feeder bulk material contains a conical hopper G with an outlet 2, the discharge chamber 3 in the form of a cone, pointing upward. On the walls of the discharge chamber 3 are fixed aeropanels 4 connected to a source of compressed air (not shown), the perforated valve disc 5 adjoins the discharge chamber 3 below. 6 (for example, paddle).

The device works in the following way.

Compiled by E.Guchkova Editor M.Tsitkina Tehred O.Netse Corrector M Maksimishinets

Order 160/27 Circulation 833 Subscription VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Branch ShSh Patent, Uzhgorod, st. Proktna, 4

ten

2079432

The bulk material in the hopper 1, with the help of the agitator 6, enters the discharge chamber 3, where it is located at an angle of natural slope. The material does not spill into the holes of the perforated valve disc 5. Due to the formation of stable static arches around the holes, the material hangs, since the diameter of the perforation holes is smaller than the diameter of the outlet 2, the bulk material does not exert pressure on the azropanel 4 of the discharge chamber, and is located along them only by him. When compressed air is supplied to the aspanel 4, the bulk material is aerated, liquefied and becomes capable of expiration. The stable arches around the openings of the bolt 5 are destroyed and the material is poured out.

The capacity of the feeder can be adjusted over a wide range by changing the amount of air supplied to the aeropanel and the aerating air and the number of holes in the gate 5.

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Claims (1)

PNEUMATIC FEEDER OF BULK MATERIAL, containing a vertically mounted hopper with a conical lower part, in the center of which an outlet is made, a conical discharge chamber coaxially mounted under the hopper, made with aeropanels placed parallel to the side walls with the formation of a cavity between them, connected to the source of compressed gas, and with inlet and outlet openings, respectively, in its upper and lower parts, coaxial with the outlet of the hopper and communicated with the hopper by means of the first of them, and a shutter located in the outlet of the discharge chamber, characterized in that, in order to increase the reliability of operation and service life, the top of the cone of the discharge chamber is directed upward, and the shutter is a perforated disk, rigidly fixed in the outlet of the discharge chamber, made with a diameter larger than the diameter of each of the holes of the perforated disk. ^ SU „„ 1207943>