SU1416829A1 - Drier for loose materials - Google Patents

Abstract

Invention m. used for the day of bulk materials, agricultural products and in preparing them for storage in agricultural production. The purpose of the invention is the intensification of heat and mass transfer. The dryer contains a vertical annular chamber 1 with loading and unloading nozzles 2 and 3. In the gap between the inner and outer cylinders 5 and 4 forming the chamber 1, there is a helix 6 of the floor forming the inner channel 7 and the interfluoro channel 9. The nozzle 2 is connected to the channel 7 which is made with varying height increasing from nozzle 2 to nozzle 3. Cylinder 4 is equipped with a jacket 10 and is made with perforations 11 in the zone of the upper turn and in the zone of the lower inter-turn channel 9. Perforations in this cylinder in each s it is full at an arc length equal to half of its perimeter. From the pipe 2, the material enters the channel 7, makes a screw movement in it, in contact with the coolant. 2 Il. (/)

Description

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 The invention relates to a technique for drying bulk materials, the advantage of agricultural products, and can be used if prepared for storage in agricultural pro- duction.

j The purpose of the invention is the intensification of heat and mass transfer.

 Figure 1 shows schematically the described dryer; FIG. 2 is view A; FIG. one.

The dryer contains vertical 1 circular chamber 1 with loading 2 ti discharge 3 branch pipes, formed coaxially located outside and inside 5 cylinders. In the gap between the cylinders 4 and 5, there is a spiral 6 placed in the floor, forming an internal channel 7 connected to the cavity of the internal cylinder 5 through a perforation 8, made in its wall. The dryer also has an inter-iKOBb channel 9 for the coolant. .

I A loading nozzle 2 is connected to an internal channel 7, which is made with a varying height increasing from the loading nozzle to the unloading one. The outer cylinder A is equipped with a jacket 10 and is made with perforations 11 in the zone of the upper spiral of the bis spiral perforation 12 in the zone of the lower part of the interturn channel 9, and the perforation of this cylinder in each zone is made at an arc length equal to half of its perimeter. The dryer has an exhaust duct 13,

The dryer works as follows.

Claims (1)

From the loading nozzle 2, the material enters the internal channel 7, makes a screw movement in it, contacts with the coolant and discharges through the discharge nozzle 3. The heat transfer medium enters the cavity of the internal cylinder 5, leaves through the perforation 8 into the internal channel 7, penetrates the material entering it and is removed through the perforation 11 into the jacket 10, then guided through the perforation 12 into the inter-turn channel 9 and from there into the exhaust duct 13. The invention claims Dryer for bulk materials, containing a vertical drying chamber with loading and unloading nozzles, formed by coaxially arranged outer and inner cylinders, placed in the gap between the cylinders a hollow core, forming an internal channel connected to the cavity of the inner cylinder through perforations filled in its wall, and inter-turn A channel, characterized in that, in order to intensify heat and mass transfer, the loading nozzle is connected to an internal channel, which is made with varying heights, ichivayuscheys from the inlet to the discharge nozzle, and the outer cylinder is provided with a jacket and formed with a perforation in the upper spiral coil arrangement of the zone and the bottom zone of the inter-track channel, wherein the perforations have ztogo cylinder in each zone is formed on an arc length equal to half of its perimeter. 1A16829 Phie.1 / J Type A -7 I