SU1305513A1 - Drier for loose and fibrous materials - Google Patents

Abstract

This invention relates to the drying of pulverized materials (m). The invention allows to improve the quality of drying and reduce energy consumption. The housing 1 is mounted around the hollow insert 2 and forms an annular hollow 4 divided by radial partitions 5 into a number of sector sections (SS) 6. The housing 1 and insert 2 have a different taper angle. CC 6 are connected to the loading port (П) 13 and П 15 of the gas suspension output in parallel. The dried M is delivered according to П 13 to the sleeve fs № 00 about ate 00 "7 Fi L

Description

11 collector 9, where it is picked up by the drying gas. It then enters CC 6 where it is pre-dried. Due to the change in CC 6, the flow velocity changes and the particles are separated according to dispersity and

one

The invention relates to dryers for bulk and fibrous materials, such as waste wood debarking.

The purpose of the invention is better drying qualities and lower energy costs.

FIG. 1 shows a dryer, a general view; in fig. 2 is a section A-A in FIG. one.

The dryer consists of a body 1 and a hollow insert 2, made in the form of straight truncated cones, facing upwards with large bases and having a common axis. The floor insert 2 forms an internal suiil chamber 3. Case 1 is mounted around hollow insert 2 and forms an annular cavity 4 divided by radial partitions 5 into a number of sector sections 6 with individual entrances 7 and exits. In this case, the body and the floor insert have a different taper angle, forming the body 1 has a larger angle than that forming the hollow insert 2 (ci., O). Thus, sections 6 are made extended upwards. In the lower part of the floor, the insert 2 is provided with a cylindrical gas supply nozzle 8.

The gas supply manifold 9 of the dryer is divided into sleeves 10 and 11 and control flaps 12. On the sleeve 11 there is a filling nozzle 13 The dryer body 1 is closed by a tongue 14 in the form of a truncated cone connected to the case 1 by a large base. In the mass base of the cone Krshgki 1A mounted on the axis of the housing 1 is adjustable in height pipe 15 output gas suspension. In the lower part of the cylindrical pipe 8, a catcher of 16 metal and mineral inclusions is mounted. Sector sections 6 are connected to the boot nozzle

305513

humidity. Lighter particles M are carried away in P 15, mine an internal drying chamber 3. Undried, heavier particles at the exit of CC 6 enter chamber 3, where they are finally dried and discharged through P 15. 2 Il.

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five

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13 and the outlet pipe 15 gas suspension in parallel.

The device works as follows.

The material to be dried is fed through a loading nozzle 13 into the sleeve 11 of the collector 9, where it is picked up by the drying gas. It then enters sections 6 of the annular cavity 4, in which it is pre-dried. Due to the change in the flow velocity (due to the change in the cross section of sections 6), the separation of particles according to dispersion and humidity occurs. Dried to the desired humidity, i.e. lighter particles of the material are carried away through the outlet pipe 15 of the gas suspension, mine the internal drying chamber 3. Undried (heavier) particles due to a sharp drop in speed at the exit of sections 6 enter the internal drying chamber 3, where their final drying takes place and gradual withdrawal through the pipe 15.

All this provides a material with a uniform final moisture, regardless of the different dispersion of its particles.

The absence of sharp turns in the course of movement of the material being dried, a reduction in the length of the path of its passage significantly reduces the aerodynamic resistance of the dryer, which allows the use of a material transfer fan of lower power and reduce the energy consumption per bit.

Claims (1)

DETAILED DESCRIPTION OF THE INVENTION Dryer dp loose and fibrous materials, comprising a housing with a loading pipe at the bottom. 313055 connected to the gas supplying manifold, and a gas suspension outlet pipe in the upper part of the body, mounted for axial movement, coaxially displaced inside the body a hollow insert forming an annular cavity with it, divided by radial partitions into sector sections, characterized by 134 By the fact that, in order to improve the quality of drying and reduce energy consumption, the body and insert are made in the form of truncated cones with different tapers, with large bases facing up, and the sector sections are connected to the loading pipe and the gas suspension outlet in parallel. Editor O. Bugir Compiled by I. Komarova Tehred V. Kadar Order 1418/38 Circulation 637 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab, d. A / 5 Production and printing company, Uzhgorod, Projecto st., A FIG. 2 Proofreader L Latay