SU1252630A1 - Drier for loose materials - Google Patents

Description

2. Ghk-i-lka no. 1, about tl and - h; j to: that the gaz Invention relates to the drying of bulk materials and can be used in power engineering, chemistry, petrochemistry, the food industry, in the production of building materials and mineral fertilizers.

The purpose of the invention is to intensify the drying process and improve the quality of cleaning the inner surface of the drum.

FIG. 1 shows a dryer for bulk materials; general view; in fig. 2 - Al. A-A in FIG. one .

Dryer for bulk materials contains a rotating drum 1 with a gas distribution duct 2 (for example, perforated), inlet pipes 3 and outlet 4 of the heat transfer fluid, support rollers 5 fixed on the lower surface of the gas distribution duct 2 along its entire length, loading hopper 6 with chute 7, gate (damper) 8, duct 9 for outputting the entire vapor-gas mixture, discharge pipe 10, drive 11.

Dryer for solids works as follows.

Into the rotating drum 1 from the hopper 6, the source bulk material, such as grain with a moisture content of 10-13%, is fed through the chute 7, coolant with a temperature of 200-300 ° C, which enters the gas distribution duct 2, for example, of a trough-shaped form, is fed through pipe 3, and then into the layer of the material being dried. During operation, the gas distribution duct 2 remains stationary, as it is rigidly connected to the inlet pipes 3 and outlet A of the heat transfer fluid, the gas distribution duct 2 rests on the support rollers 5, which slide along the inner surface of the drum 1, the spent heat carrier through the open end of the drum 1 exits box 9. Dried product with

(252630

Adorable box equipped with support rollers.

1-2% of moisture is discharged into the nozzle 10 and enters the finished goods warehouse.

The dryer allows for an efficient fluidization of the bed by placing a perforated box under the layer of the material being processed along the drum, the gas distribution box 2 serves as an additional heat exchange surface, which also intensifies it, while the dryer is running, the layer of material is significantly shifted in the direction of rotation of the drum (Fig. 2), therefore, the gas distribution duct 2 is placed with the indicated displacement, the heat carrier can also be additionally fed into the superlayer space of the drum 1. 1Chiber ( damper) 8 serves to adjust the output cross section or. full open when purging the gas distribution duct 2, or completely closing it during operation. Depending on the properties of the material being processed, the gas distribution duct 2 may be spring-loaded at the attachment points of the support rollers 5 or made of an elastic material (such as plastic) with low productivity and low temperatures to, for example, when drying thermally weak and easily broken products.

In addition, when drying coarse-grained or long-length light materials, such as feed concentrates, herbs, etc., the lower part of the gas distribution box 2 may

be made in the form of longitudinal flawed or solid slits, fastened with metal grids to eliminate their clogging, and the gas distribution duct 2 itself must be filled

with scissors for cutting adhered products.

2

Claims (2)

1. DRYER FOR BULK MATERIALS, containing a rotating drum with nozzles for supplying and discharging a coolant, a gas distribution box, characterized in that, in order to intensify the drying process and improve the cleaning quality of the inner surface of the drum, the gas distribution box is made along the entire length of the drum and is fixedly connected with nozzles for supply and removal of coolant. I 252630 2. CvaiHiKa according to Claim.