SU1179057A1 - Grain drier - Google Patents

Abstract

1. BEPHOCyUlUJIKA, containing parallel mines with an air distribution chamber located between them, in which a raw grain preheater is located, a nagging bunker divided into three compartments, the middle of which is connected to the preheater, and the extreme ones to the mines, and a line of fresh drying agent that differs so that, in order to intensify the drying process and increase efficiency, the heater is provided with a gas distribution grill that completely covers the cross section of the air distribution chamber, and It has a wobbly bottom connected to the line of fresh dryer Q SS agent. 2. Grain dryer according to claim 1, ex (I feel that the gas distribution grid is installed on the rails and the retractable slide is swept out.

Description

with

SP to

The invention relates to a grain drying technique, in particular, to dryers for grain crops and oilseeds, and can be used in enterprises of the harvesting system in agriculture.

The purpose of the invention is to intensify the drying process and increase efficiency.

FIG. 1 shows a grain dryer, a longitudinal section} in FIG. 2 same plan view.

The dryer has a parallel-mounted recirculation 1 and a drying-cooling 2 shafts with a pressure-distribution chamber 3 between them, in which the gas distribution grid 4 is located, consisting of rotary sections 5 and a heating device formed with the steppes of the shafts and chambers. In order to facilitate maintenance, the grille can be pulled out of the chamber along the guides 6 of the standard profile. A hopper 7 is installed above the drying shafts; it is divided into three compartments, the middle of which, located above the grate, has an outlet mechanism (feeder) 8 in the lower part. For an even distribution: the drying agent supplied and the heated grain unloaded, an asymmetrical funnel bottom 9 is installed under the grate communicating with the inlet diffuser 10.

Zernosushilka works in the following way.

The raw grain enters the middle compartment of the drying bin 7, from which, by means of mechanism 8, is periodically fed to the gas distribution grid 4 in an amount determined by the height of the layer of grain on the grid. A drying agent with a temperature of 140-150 ° C is supplied through the inlet diffuser 10 to the heating device between the shafts and within 40-50 seconds, heats up a portion of the grain on the grid in the fluidized bed. The spent drying agent after the heating device is directly used for subsequent drying and at the same time it is cleaned when it passes through the Eern layer in the mines 1 and 2 of the grain dryer. When the grain reaches the optimal temperature, sections 5 of the gas distribution grid and the heated grain turn to the bottom 9, and then into gravity flow, equipped with a loading valve, exit from the dryer. Then the cycle of unloading and heating of the next portion of grain is repeated. The heated grain is then mixed with the recirculating grain and is fed into the extreme compartments (heat and mass exchange) of the super-suspension bunker for retrieving and further drying and cooling.

Damp

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i Drying agent I

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Claims (2)

1. A GRAIN DRYER containing parallel shafts with an air distribution chamber located between them, in which a raw grain heater is placed, a silo hopper divided into three compartments, the middle of which is connected to the heater, and the last to the mines, and a line of fresh drying agent, different the fact that, in order to intensify the drying process and increase efficiency, the heater is equipped with a gas distribution grill that completely covers the cross section of the air distribution chamber, and s an funnel-shaped bottom, a line connected to the fresh drying agent. 2, Grain dryer according to claim 1, characterized in that the gas distribution grill is mounted on rails and is retractable. SU „„ 1179057 1179057 2