SU10935A1 - Single chamber dryer - Google Patents

Description

The present invention relates to a device of a single-chamber dryer for grains, fruits and vegetables, equipped with a heater, lifting wells for hot water, and wells in the form of louvers and. It is a set of known parts in themselves (longitudinal calorific pipe with a number of transverse i tubes, lifting wells with rotary valves and adjustable partitions in the air heater.

In this day, it is intended to carry out intensive mixing of the air streams in the chamber and its repeated helical movement in the latter with additional heating in certain parts of the heater in its middle part, V

In the schematic drawing of FIG. 1 shows a horizontal section through a dryer (according to I-I in FIG. 2); FIG. 2 is a vertical section of it (in FIG. 1); FIG. 3, 4 and 5 - respectively, sections - II-II, III-III and {V- {V in FIG. one; FIG. 6 shows the movement of air in the dryer.

Said dryer mainly consists of a drying chamber 1 (FIG. 1) with lifting for heated air

wells 2,2, equipped with rotary valves 3, 3 .... and connected

for heating air with a series of transverse tubes 6.6 .... and 7.7 .... of a longitudinal air heater pipe 5 of rectangular cross section, above which a pair of air heater pipes 8 of circular cross section is located (Fig. 3, 4, 5).

Hot Flue gases or steam flow from chamber 9 to pipe 8, 8, then pass to pipe 5 and exit the broom string 10 and chimney 11. Air for the dryer is sucked through channels 12 and further for preliminary

preheating enters tube 6.6

and 7, 7 .... The radiator space is divided by portable partitions 12, 12 into compartments designed first for preheating cold air strings, later for additional heating of cooling columns when drying materials in the lifting chamber 1 and last for heating the guide into the exhaust pipe 13 of the exhaust air.

The air heated in the heater (in the first compartment) passes into the chamber or through the blinds 14 or through a series of lifting wells 2.2 ..., lifting them up to the top of the drying chamber, or simultaneously to and fro, depending

from the position of the rotary valves 3. The upper heater tubes 8,8 serve to increase the heating of the air preheated in the bottom pipe 5. Such a device of the dryer is supposed to carry out natural multiple air circulation (Fig. 6), rising after each heating to the chamber 1, and after cooling there the descending 1 is again in the corresponding compartment of the heater, limited by adjustable partitions 12. Thus, in the dryer, there should be a spiral movement of air along chamber 1.

The subject of the patent.

1. Dryer l of grains, fruits, vegetables with a heater, lifting for

hot manholes and with a blinds hearth, characterized with the cumulative use of: a) a longitudinal heating tube 5 with a number of cross tubes 6, 7 for heating the air, o) a row of lifting wells for heated air wells 2 with rotary valves for guiding it or through the louvers 14 into the thickness of the material being dried, or to the upper part of the chamber and c) adjustable partitions in the heater in order to separate it for heating fresh air, to heat the cooling air during drying and to heat the exhaust gases before releasing them Used chimney 13.

2. With the use of a pair of upper air-heater pipes 8, indicated in item 1 of the dryer.

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