SU1620060A1 - Installation for ventilation and transportation of loose materials - Google Patents

Abstract

The invention relates to equipment for the storage of bulk materials, mainly grains, and more specifically to installations for venting and transporting grain. The aim of the invention is to ensure complete discharge of the material by eliminating stagnant zones at the base of the supports along their entire length. Air ducts 4 for ventilating and transporting material are mounted on supports 2 with a trapezoidal shape with a side 11 inclined to the base 12 at an angle of repose of the vented material, and portions 14 of the duct 4 having a slotted perforation form a right angle with the side 11 of the trapezium. 2 Il.

Description

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The invention relates to equipment for the storage of bulk materials, mainly grains, and more particularly to installations for venting and transporting grain.

The purpose of the invention is to ensure the complete discharge of the material by eliminating stagnant zones at the base of the supports along their entire length.

Figure 1 shows the proposed installation, a general view from above; figure 2 - section aa in Fig, 1,

The plant for ventilating and transporting bulk materials contains in parallel the storage of support 2 located on the floor 1, between which transport tracks 3 are formed for transporting material. On supports 2, air ducts 4 are rigidly fixed, divided by longitudinal vertical partitions 5 into equal channels 6 and 7, and adjacent channels 6 of adjacent air ducts 4 are connected to a distribution manifold 8 of a fan (not shown) with a common inlet 9 equipped with a valve 10. Stands 2 have in cross section, the shape of a trapezoid, the side 11 of which forms with its large base 12 an acute angle corresponding to the angle of natural repose of the ventilated material and comprising 38-41 °. The air ducts 4 have lateral pitched surfaces 13, which allow the material to collapse into transport tracks 3 and sections 14c with slotted perforations oriented in the direction of movement of the material being transported, located above transport tracks 3 and forming a right angle with the side 11 of the stand 2.

At the end of the transport lanes 3 there are unloading windows 15 having dampers (not shown), under which a conveyor (not shown) is installed.

The installation works as follows.

Ventilation is carried out with the dampers of the discharge ports 15 closed. Air from the fan through the distribution manifold 8 when the valves 10 are open enters all the pipes 9, and then into the air ducts 4 and through the sections 14c through the perforation enters the grain mass.

When unloading the grain, the dampers of the unloading windows 15 are opened, the grain flows by gravity to the belt conveyor d © until the angle of inclination of the mass reaches

minimum value. To unload the remaining grain, the valve 10 is left open only for that pair of air ducts 4, along which transport will be carried out along transport track 3 and air is supplied.

The grain transporting air jets are concentrated in the middle of the transport path 3, forming a total air flare, the resultant of which is directed towards the discharge side, and the right angle between the section 14 with a slit perforation and the side 11 of the stand 2 contributes to an increase in the concentration of air flow. The sides of the 11 stands 2, constituting with the floor angle

38-41 provide a ramp on the transport track 3 even wet and clogged grain of various agricultural crops.

At the end of the transportation of grain along the transport path 3, its valve 10 is closed, another is opened and the grain is additionally loaded from the next transport path.

Claims (1)

Invention Formula Plant for ventilating and transporting bulk materials, predominantly grains in storages, containing parallel stands located on the store floor, between which transport tracks are formed to move the material, ducts rigidly mounted on the stands, separated by longitudinal vertical walls into equal channels, supported by valve to a distribution manifold with a fan, and having a side sloping surface and slots with perforations located above the trans tails, distinguished by the fact that, in order to ensure complete material unloading by eliminating stagnant zones at the base of the supports along their entire length, the supports have a trapezoid shape in cross section, the side of which forms with its large base an acute angle corresponding to the angle of repose the ventilated material, and the slotted-air duct portions form a right angle with the side of the stand. 8 9 / J A 1