SU460419A1 - Dryer for bulk materials - Google Patents

Description

one

The invention is intended for drying agricultural; Stve.nn.h products.

Dryers for bulk materials, mainly for drying rice grains, are known, containing a mine with non-porous walls, enclosed with a gap in the housing for heat-transfer agent and divided in height into two sections, the upper of which in the lower part is connected to recirculation gas. .

To improve the quality of drying in the proposed dryer, a perforated shell, forming a redistribution manifold, is installed inside the shaft, and the recirculation line is germetically separated n, by retracting from the annular gap between the shaft and casing and the shaft section, connected to it, forms a zone of stabilization of the vessel.

In FIG. 1 schematically shows the dryer described; in fig. 2 is a section along A-A in FIG. one; pas figs. 3 is a section along BB in FIG. one.

The dryer shaft is enclosed with a gap in the casing 1 with ne; p, with egorodki 2 and is divided in height into the upper 3 and lower 4 sections. The casing serves to supply coolant. The sections have perforated stevdas 5. Recycling line 6 is connected to the upper section 3 with a pepper adjustment valve, No 7. A perforated shell 8 is installed inside the shaft, forming a redistributive collector with partitions 9 for distributing the heat transfer fluid in a cross-countercurrent direction with the material.

The recirculation line 6 is hermetically separated by partitions 10 from the annular gap between the shaft and the casing 1. The area facing the input of the recirculation line 6 forms an area 11 for leveling and stabilizing the grain temperature. The grain is discharged by the blade rotor 12.

Thus, in section 3 of the shaft, moisture from the coolant on the grain condenses and the grain is heated by the heat of condensation, in zone 11 the temperature stabilizes, and in section 4 the condensation moisture and part of the water moisture are dried.

Subject and issue: n and

20

Drying rack for raw materials, which are used for drying rice grains, contains a perforated shaft, closed with a gap in the housing for the heat transfer fluid and divided in height into two sections, the top of which is connected in the lower part to a recirculation line, that, in order to improve the quality of sushi, a perforated shell is installed inside the shaft, forming a 34

The limiting collector, and the recirculating casing and the mine section, connected to the line, are hermetically separated by the partition wall, forms the stabilization zone (M, perratum from the annular gap between the material shaft).

460419

Fig 1

12

Iki

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