SU1239496A1 - Vortex apparatus for cooling granular material - Google Patents

Description

The invention relates to devices for cooling bulk materials by air cooling and may find application in industrial materials or in agriculture.

The purpose of the invention is to reduce energy costs ,,:.

FIG. 1 shows a schematic vortex apparatus, a general view; in fig. 2 is a view A of FIG. one.

The vortex apparatus for cooling the granular material comprises a receiving hopper 1 located on the upper air supply manifold 2 for supplying the heated granular material. Cooling outside air is injected through the lower air-supplying collector 3 connected to the gas supply device 4. Between the air-supporting subdiales of the collectors 2 and 3 there is an upper part 5 of the working chamber, which has a truncated cone shape with a height equal to 1/3 of the total height the working chamber, and the apex angle equal to 60. Under the lower air inlet manifold 3 is located the lower part 6 of the working chamber, having the form of a paraboloid of rotation, with the bottom of the chamber being made inwardly in the form of a torus, as a result a projection 7 with a gently tapering end is formed inside the chamber. The vortex chamber also contains a gas outlet 8 for the exit of the processed material with the exhaust air and the discharge device 9 in the form of a sediment chamber with a perforated cover located above the gas exhaust 8.

The bottom of the working chamber c. the shape of the torus surface allows the particles of the processed material that have fallen to the bottom of the chamber to rise under the action of aerodynamic force, slipping along the wall of the protrusion with a gradually tapering end to the gas outlet, where they are captured and carried away by the flow of the treated air into the sedimentary chamber. Other forms of protrusion (pyramid, sphere, cube, prism, etc., only scatter particles and they do not enter the pipe when climbing upward. Infinitely the product cannot rotate in the chamber and at the end of the end it is advisable to cool the processed mold. The bottom of the chamber thereby closes the gas outlet.

Vortex apparatus works as follows.

The heated granular material is supplied by the air flow from the bunker 1 through the upper air intake manifold 2 to the upper part 5 of the working chamber, having the shape of a truncated cone, opposite to the vortex air flow formed by the gas supplying device 4, where cooling is blown through the lower air inlet collector 3. outside air

In the upper part 5 of the working chamber, intensive cooling of the heated granular material occurs due to high blowing speeds that occur during the oncoming movement of the vortex flow and granular material. Upon further movement of the material particles downward in the upper part 5 of the chamber along a spiral trajectory towards the air flow, they are braked to a state of rest, and the grains are carried away by the air flow and the direction of their movement in the lower part 6 of the chamber coincides with the direction of rotation of the vortex flow, where and final cooling of the particulate material takes place.

The cooling of the material particles is gradually lowered to the bottom of the working chamber 6, made in the form of a torus

35, the surfaces where, slipping along a protrusion with a smoothly tapering apex 7, rise to the top and get carried away by the flow of exhaust air entering the gas outlet 8 of the vortex apparatus.

40 According to the gas outlet, the waste material is lifted with the exhaust air to the discharge device 9, made in the form of a sedimentary chamber, by means of pneumatic transport,

45 where the material is deposited and removed on the outside. This ensures the supply of cooled material for further processing.

50

The use of the proposed vortex apparatus for cooling granular materials will allow the cooled material to be supplied to a certain height for subsequent processing in the gas outlet while it is being fed to the discharge device. In addition, the combination in one device

31239496.4

supplying the material for the subsequent rounding of the grain to refuse to transport it and to cool it in the gas extracting organ, for example, noria, which will allow in the post-harvest treatment the reduction of energy consumption.

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Fig, 1

Editor N. Tupitsa

Order 3383/38 Circulation 561 Subscription

VNIIPI of the USSR State Committee for Inventions and Discoveries 4/5, Moscow, Zh-35, Raushsk nab. 113035

Production and printing company, Uzhgorod, Projecto st., 4

F1L2

Compiled by I. Inozemtsev

Tehred O. Gortvay, Proofreader V. But ha

Claims (1)

Vortex device for cooling granular material, containing a working chamber, the upper part of which is 1/3 of its total height and made in the form of a truncated cone with an angle at apex of 60, and the lower part is made in the form of a rotation paraboloid, gas supply, loading and unloading devices, air supply manifolds, a gas outlet located along the chamber axis and fans, characterized in that, in order to reduce energy consumption, the bottom of the working chamber is made concave into the chamber in the form of a torus surface with the formation of a stupa, the top of which is gradually narrowed, and the unloading device is made in the form of a sedimentary chamber and is located above the gas outlet. b ζ © ζ ©