SU1359605A1 - Device for drying loose materials - Google Patents

Abstract

Invention m. used in the chemical, petroleum refining industry. The purpose of the invention is to improve the quality of drying. For this purpose, chamber 1 is connected to condenser 2 by means of bubbling tubes 8, the lower end of which is introduced into condensate collector 4 with the formation of water traps. A portion of the circulation loop is located inside chamber 1 and is designed as a central perforated pipe 6. And a system of perforated channels 7 evenly distributed throughout the volume of the material being dried. The vapors of moisture evaporated from the material being dried are fed through a system of channels 7 and bubbling tubes 8 under a layer of liquid and, after passing through a layer of cooled liquid, are condensed. Alternate heating and vacuuming until the material reaches the desired final moisture. This design allows an increase in the secondary vapor recovery rate. 1 il. with fS / 4 cz ChCH-, L I i-tf I I L-A oe el S O5 cl x .-. J

Description

This invention relates to ears and technology. It can be used in chemical, oil refining, and other industries.

The purpose of the invention is to increase the quality of drying by increasing the degree of secondary vapor recovery.

The drawing schematically shows the proposed device, a General view.

The device contains a vertical drying chamber .1, a condenser 2 placed around it, separated from the chamber by a perforated barrier 3 and provided with a condensate collector 4 in the lower part, and a material heating unit 5 in the drying chamber in the form of a closed circulation loop. the contour located inside the chamber 1 is made in the form of a central perforated pipe 6 and a system of perforated channels 7 equally spaced over the volume of the material being dried.

The drying chamber 1 is connected to the condenser 2 by means of bubbling tubes 8, the lower end of which is introduced into the condensate collector 4 with the formation of hydraulic locks.

The device also contains a choke. 9 for draining condensate from collector 4, bag filter 10, cooling unit 11, loading and unloading units 12 and 13, fitting 14 for connecting to a vacuum system (not shown conventionally) and an inert gas cylinder 15. The node 5 of the heating material consists of a central. Perforated pipe 6, the heater 16 and gazoduvkiP

The device works as follows.

The wet material is loaded into the drying chamber 1 through the loading unit 12, after which the chamber 1 is sealed, the cooling unit 11 is turned on, the drying chamber is connected to the vacuum system and the drying process begins.

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(flooded before the start of work in the condensate collector 4) and, passing through the layer of cooled liquid, are condensed, and the non-condensable gases through the nozzle 14 are removed from the system. When the required residual pressure in the drying chamber 1 is reached, the evacuation process is stopped, the vacuum is injected with an inert gas from the cylinder 15, the gas blower 17 is put into operation and the dried material is heated by blowing the gaseous coolant heated in the heater 16. Upon reaching the dried material of a given temperature, the heating is stopped, and the drying chamber is again connected to the vacuum system.

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In this way, alternating heating and vacuuming (i.e., vacuum drying) is carried out until the material being dried reaches a desired final moisture content. After that, through the node 13 unload the dried material.

Claims (1)

Invention Formula thirty A device for drying bulk materials, containing a drying chamber and a condenser placed around it, separated from the chamber by a perforated partition and provided in the lower part with a condensate collector, and a material heating unit in the drying chamber in the form of a closed circulation loop of a heat carrier, 40 are distinguished by the fact that, in order to improve the quality of drying by increasing the degree of secondary vapor trapping, the chamber is connected to the condenser by means of bubbling tubes, the bottom end of which introduced into the condensate collector with the formation of water locks, and the section of the circulation loop placed inside the chamber, it is made in the form of a center. The vapor evaporated from the perforated 50 perforated pipe and the system material. The moisture through a system of perforated perforated channels, equalized channels 7 and bubbling measured by volume of the dried tube 8 is fed under the liquid material. VNIIPI Order 6143/41 Random polygons pr-tie, Uzhgorod, st. Project, 4 five (flooded before the start of work in the condensate collector 4) and, passing through the layer of cooled liquid, are condensed, and the non-condensable gases through the nozzle 14 are removed from the system. When the required residual pressure in the drying chamber 1 is reached, the evacuation process is stopped, the vacuum is injected with an inert gas from the cylinder 15, the gas blower 17 is put into operation and the dried material is heated by blowing the gaseous coolant heated in the heater 16. Upon reaching the dried material of a given temperature, the heating is stopped, and the drying chamber is again connected to the vacuum system. In this way, heating and vacuuming (i.e., vacuum drying) are alternated until the material to be dried reaches the desired final moisture content. After that, through the node 13 unload the dried material. Invention Formula A device for drying bulk materials, containing a drying chamber and a condenser placed around it, separated from the chamber by a perforated partition and provided with a condensate collector in the lower part, and a material heating unit in the drying chamber in the form of a closed circulation loop of a heat carrier, distinguished by the fact that, in order to improve the quality of drying by increasing the degree of secondary vapor trapping, the chamber is connected to the condenser by means of bubbling tubes, the lower end of which introduced into the condensate collector with the formation of water locks, and the section of the circulation loop placed Circulation 636 Subscription