RU62227U1 - DEVICE FOR DRYING CLOSED MATERIALS - Google Patents

Abstract

The utility model relates to the field of drying clumping materials in various industries, in particular, for drying the filter cake removed from vacuum filters in the sugar industry. A device for drying clumping materials contains a drying chamber with a loading device, a discharge pipe and a pipe for supplying coolant. The loading device is made in the form of a pipe placed along the vertical axis of the chamber, equipped with a serrated screw, the shaft of which is hollow. The lower section of the pipe is located above the turbine mixer with blades, the edges of which are bent up. On the inner wall of the chamber installed fenders profiled shields. At the outlet of the drying chamber are a separator and a cyclone. The technical result of the utility model is to change the design of the known device for drying clumping materials, in particular, filter cake, which entails an increase in the moisture loss of the material to be dried, thereby improving the drying quality, the cake is better stored and can be used in agriculture.

Description

This utility model relates to the field of drying of clumping materials in various industries, in particular, for drying the filter cake removed from vacuum filters in the sugar industry.

A known dryer for bulk and clumping materials, containing a stationary heated drum with a rotor inside in the form of a shaft with blades located outside the helix and blades located between them (USSR Author's Certificate No. 545845, MKI F 26 V 17/20, F 26 V 11 / 16, 1977).

The disadvantage of the dryer is the significant energy costs for drying the filter cake.

The closest in technical essence is a device for drying clumping materials in suspension, containing a drying chamber with a loading device consisting of a pipe and a screw, and a turbine mixer with blades located at its lower part, the edges of which are bent up. The drying of the material takes place in a drying chamber when a drying agent is fed into it. Using a vertical screw loading device, the material to be drained is fed to a turbine mixer, with which the material is crushed and twisted, forming a gas suspension stream. On the inner wall of the chamber there are installed fenced profiled shields that serve as additional material shredders and flow turbulators. From the drying chamber, the dried material is sent to a separator, and then to a cyclone (USSR Author's Certificate No. 365535, MKI F 26 V 17/22, 1969).

The drawback of the dryer is the insufficient degree of dehydration of such clumping and sticky material as filter cake.

The purpose of the proposed utility model is to achieve optimal drying conditions to increase the degree of dehydration of clumping and sticky material, for example, filter cake.

This goal is achieved by the fact that in the drying device for clumping materials, the feather of the screw of the loading device made with teeth for more intensive grinding of the dried material, and the shaft of the screw is hollow, into which the coolant is supplied.

The figure 1 schematically shows a device for drying clumping materials, consisting of:

1. The drying chamber;

2. Unloading branch pipe;

3. A pipe for supplying a coolant;

4. The pipe;

5. Serrated auger;

6. turbine mixer;

7. The blades;

8. Fender profiled guards;

9. The separator;

10. Cyclone;

11. Val.

In figure 2 - turbine mixer; figure 3 - shaft with a serrated screw.

A device for drying clumping materials, in particular for drying filter cake, is a drying chamber with a screw loading device having a turbine mixer with blades and fenced profiled guards. Wet material enters the pipe (4) of the screw loading device of the drying chamber (1), where it is subjected to intensive mixing by the serrated screw (5) and heat treatment, due to heat transfer between the shaft (11) of the screw into which the coolant is supplied and the material. Further, the material falls on the turbine

a mixer (6) with blades (7), the edges of which are bent upwards for simultaneous grinding of the material and swirling the gas suspension flow, due to the supply of coolant from the pipe (3). The material rises up, is crushed with fenced profiled shields (8), which are additionally flow turbulators. From the drying chamber, the dried material through the discharge pipe (2) is sent to the separator (9), and then to the cyclone (10).

The advantage of the proposed design is the best drying of clumping materials.

Claims (1)

A device for drying clumping materials, containing a drying chamber with a loading device consisting of a pipe and a screw, and a turbine mixer with blades located at its lower part, the edges of which are bent up, characterized in that, in order to improve the quality of drying, the loading device auger is made with serrated, and the screw shaft is hollow, with the aim of introducing coolant into it.