SU757818A1 - Ventilated grain drying hopper - Google Patents

Description

The invention relates to a device for drying bulk materials, mainly grains, and may find application in agriculture.

Vented bunker-dryers are known, containing a column, on both sides of which gas distribution manifolds are located 11].

The disadvantage of such vented bunker grain dryers is uneven ventilation. ^one

The aim of the present invention is to improve the uniformity of ventilation of the bulk material in the hopper by reversing the gas flow.

To this end, upper and lower flaps are installed in each collector, with the upper flap of one collector interlocked with the lower flap of the other collector for their separation

Places in the same position.

In addition, the constructive implementation of the hopper of the grain dryer allows the use of collectors for storing grain, for which purpose in the upper

2

parts of the collectors are fitted with charging valves, and at the bottom - discharge valves.

The drawing shows a General view of the bunker.

It contains a column 1 filled with grain, central 2 and side 3 perforated partitions, sectional hinged bottom 4, gas distribution manifolds 5, upper 6, 7 and lower 8, 9 flaps, loading 10,

11 and discharge 12, 13 valves and exhaust hopper 14.

The process of ventilation and drying of grain in the bunker-grain dryer is carried out as follows.

When loading grain into column 1, the hinged bottom 4 takes a horizontal position, and the loading valves 10, 11 are closed. The columns are filled to a level exceeding the level of the upper flaps 6 and 7. Upon completion: the fan is turned on and air is supplied to one of the gas distribution manifolds 5. The lower flap of this collector is in the open position and the upper one is in the closed position " (eg,

and the upper slopes 6 and 7 and valves 10

and 11 open. Grain filling the collectors may be discharged into the exhaust

hopper 14 when opening the discharge valves

12 and 13.

3

as shown in the drawing, respectively, valves 8 and 6 of the left collector). In the other collector, in accordance with the interlock, the upper flap is open and the lower flap is closed (in the drawing, flaps 7 and 9, respectively). The air from the collector passes through perforated partitions 2 and 3, blows and dries the grain in the column and is emitted through the second collector into the atmosphere. Ventilation continues until the material reaches the target in one of the columns of the column enclosed between the inlet manifold and the central perforated partition 2. The vessel, in which air is supplied to the second collector, first blows the grain in the second section and enters the atmosphere through the first collector. Grain-dried in the first ₂ θ sec- tion, there may be discharged from the hopper, which under the bottom 4 of the column tilts and grain discharged into the hopper section 14. In this section of the vacant poured new grains and venting portion ₂₅ sive blowing rever- continue.

If necessary, the collectors 5 can be used for storing grain. For this purpose, the bottom flaps 8 and 9 and the valves 12 and 13 are closed

Claims (2)

Claim 1. A ventilating bunker-dryer with a column, on both sides of which gas distribution manifolds are located, differing from the fact that, in order to increase the uniformity of ventilation by reversing gas flows, upper and lower flaps are installed in each collector, and the upper flap of one collector is blocked with bottom flap of another collector for their placement in the same position. 2. Bunker-zernosushilka for π. 1, characterized in that, in order to ensure the storage of grain in the collectors, the loading valves are installed at the top of the latter, and the discharge valves are installed at the bottom.