SU692638A1 - Pneumatic classifier for separating loose materials - Google Patents

Description

The invention relates to devices for separating bulk materials, such as grain, using warm gases, and can be used in agriculture. A pneumatic classifier is known for separating bulk materials, having a loading device, a separation channel with a gate in order to adjust the speed of separating medium. and a supporting element made in the form of a glass with a mesh day 1. The disadvantage of such a pneumatic classifier is the impossibility of separation Source material into several fractions, which leads to poor performance of the pneumatic classifier. The closest technical solution to the invention in terms of the function performed and the result achieved is a separator for dividing the material in a gas-air flow system, having an adium body divided by partitions into sections, a charging and retaining element located in the body, a fan connected by a suction nozzle with a casing (2. The disadvantage of this separator lies in its low productivity and inability to control the separation process. The purpose of the invention is to provide high-quality fractional separation source material. This is achieved due to the fact that the supporting element is made in the form of an endless perforated tape, Fig. 1 shows a pneumatic classifier for separating bulk materials, a general view; Fig. 2 - section A-A in Fig. 1. 1; FIG. 3 is a view along arrow B in FIG. 1. The pneumatic classifier for separating bulk materials comprises a loading device 1, a fan 2 connected by a suction nozzle 3 having a gate 4 with a housing 5 divided by partitions into sections 6. channels 7 connecting the gas ode section through the discharge chamber 8 with ressiver devices 9 are mounted dampers 10, with the front chambers 11 .spinka is transparent. Under the ducts of the section, a supporting element 12 is installed, made in the form of an endless perforated belt placed on the drums 13, one of which is connected through the mechanical regulator 14 to the electric actuator 15, allowing, if necessary, to change the speed of the grid.

Pneumatic classifier works as follows.

The source material flows from the loading device 1 to the endless perforated belt 12, which moves it to the gas ducts of the b sections. At the same time through the endless perforation-anna. the tape 12 and / gasodes pass air at a speed set for each section separately by gates 10. The position of the gates. 10 is chosen such that the values of the air flow rates in the ducts. in. Array in arithmetic progression In the direction of movement of the source material .; Particles material primantanuyuschee

or

water mc in

captive state .. In this case in; Depending on the velocity of the air drip, separate fractions of rip size are separated from the total mass of the starting material, which are deposited in the chambers of the discharge devices 8..

The separation process is controlled by changing the speed of movement of an endless perforated belt using a gear 14 connected to

electric drive 15. Additional regulation is carried out by the gate valve 4 installed before the fans 2 in the connecting pipe 3. This control consists in the synchronous change of the speeds of the separating flows, the ratio of which is invariably set in arithmetic progression with the help of gate valves and gas ducts.

Claims (2)

1. USSR author's certificate 30 No. 209896, cl. On 07 On 11/06, 1965, . 2. USSR author's certificate number 486814, cl. On 07 May 4/08, 1973. Y fmgl