SU1412652A1 - Apparatus for ventilating and conveying grain heap - Google Patents

Abstract

The invention relates to devices for receiving, temporary storage with simultaneous ventilation and uniform release of bulk materials, mainly for grain heap coming from combines. The purpose of the invention is to improve the quality of the grain due to the uniform air supply into the thickness of the grain. The device contains air-grooves, divided cargo-carrying perforated partition 1 into air support 2 and transporting 3 parts, and a duct 4 located above it. Box 4 communicates at one end with air inlet pipe 10, with the other with an aspiration system, for example, cyclone, for the introduction of light impurities. In the box 4 along its lower lateral corners mk, elastic barriers 5 are mounted so that, when the device is in operation, they form a channel with a lowering and hydraulic resistance from the beginning to the end of the transporting part. 2 Il. 55 (L 1C 05 SP 1C IpLLS.I

Description

I The invention relates to devices for receiving, temporary storage with simultaneous ventilation and even freezing of bulk materials mainly for grain heap coming from combines.

The purpose of the invention is to increase the quality of the grain due to the uniform air supply into the thickness of the grain.

FIG. 1 shows the proposed device, longitudinal section, (arrow B indicates the movement of clean air, C - the movement of dusty air, D - the movement of a heap of grain); in fig. 2 is a cross section of L-A in FIG. one.

The device has air-grooves, divided by the load-carrying perforated bulkhead 1, for example, a mesh-like sieve, for gh / h the supporting part 2 and the transport part- and the upper part 3, which is formed above the apron; They are made in the form of valves of a wedge shape with a cross section decreasing in the direction of transport, and around the slot from the slit with a curvilinear profile of the inlet along its length, and the slit of the slit along the length of the fence increases the direction of movement of the material. The minimum jibm of the height of the inlet opening of the slit is selected depending on the type of non-recurrent material, for example, for corn darks 50 ... 80 mm. This value determines the possibility of a motor to enter the transporting vehicle in the transport part. The air duct 2 of the air-grooved device is connected by means of an air duct 6 to the ventilator 7, and their transport part 3 is connected to an outlet tray 8 equipped with a gas pipe (Extreme 9. The internal cavity of the box 4 is connected to the air duct pipe 6). - Box 4 is mounted on stand 11, has perforated walls and is equipped with an outlet nozzle 12 with a flap 13 for exit from the air flow, Hecynj, an ero light admixture. There is a controllable valve 14 for controlling the air supply to the box 4.

The device works as follows.

The grain pile is dumped from the vehicles onto the surface of the box 4, the entire capacity of the device is gradually filled, while under the pressure of the mass of the pile, the elastic barriers 5 sag back into the box, opening the way for the grain pile to the conveying part 3 of the air chute. With the dampers 9 and 13 closed, the valve 14 is open and the fan 7 is turned on, air enters the air inlet chute 2 and through the air duct 10 in the duct 4, from which through openings in the load-carrying ne

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partition 1 and duct 4, the air goes into the grain mound and ventilates it ..

The presence of elastic fences bent by the mass of the pile under the lower part of the duct eliminates the appearance of areas with high airflow density and, consequently, excessive air intake into the side zones. Introducing air directly through the lateral faces of the duct eliminates stagnant zones, which ensures equal dimensionality of the distribution of the air flow and the possibility of storing heaps of higher humidity and debris.

When the air flow through the duct 10 into the duct 4 is closed by the valve 14, the exhaust flow through the cargo compartment openings enters the mass of the pile, “reduces it, and when the valve 9 is open, the grain pile of the grain tray 8 is unloaded to the .apple picker augmentation equipment of a zerkompleksplex.

With the passage of air through the zone, a new pile of light impacts the removal of light particles into the padzern space between the duct 4 and the load-dog partition 1. You are lightweight particles; 1 in the end, there is a positive difference between the rates of air filtration and particle soaring. heap. Otios of particles directing the transportation of the main material is carried out under the influence of the directional movement of the air flow;

The pile of grain enters the trap in the form of directed jets that emerge from under elastic fences, and the wedge-shaped form of elastic fencing ensures the stability of the speed of spacing, which contributes to maintaining a stable mode of transportation.

As the elastic enclosures become free from the effects of the mass of the pile, they occupy a vertical position, thereby forming a transient channel for the pile and a light impurity.

Thus, we propose that the design of a device for ventilating and transferring a grain pile to the ground significantly reduces the dustiness of the premises, partially separates the light impurity, which improves the working and working conditions of the pre-cleaning maship and m of grain mound allows the most polpo use the capacity of the device when receiving a grain heap with a higher humidity and contamination.

Claims (1)

Invention Formula A device for ventilating and transporting a pile of grain, including an airwell, a porous partition installed in the airwell channel above its bottom, a fan for supplying air into the space between the bottom and the partition and a duct with elastic barriers, installed horizontally with a gap above the partition, distinguishing itself from that, in order to improve the quality of grain cleaning due to uniform air supply into the thickness of the grain, the box is formed by two angled perforated walls and is connected to the ventilators rum through additional ducting, and enclosure are designed as valves wedge PC) rmy cross section, in a decreasing direction of transportation. FIG. 2