SU740669A1 - Arrangement for airing and pneumatic discharge of loose materials from storage - Google Patents

Description

The invention relates to pneumo 6 transport and can be used, for example in agriculture, flour milling for ventilation and pneumatic discharge of bulk materials stored in warehouses.

A device for ventilating and unloading bulk materials from warehouses is known, which contains channels parallel to one another and perpendicular to the longitudinal axis of the warehouse, which are blocked below the floor level of the warehouse by air distribution grids with a directed exit of air jets. The compressed air under the air distribution grilles is supplied at the beginning of the channels from the fan through the inlet, and the ends of the coaxial channels of the channels cut into the end walls of the outlet funnel 1.

It is also known a device for ventilating and pneumatically discharging bulk materials from warehouses, comprising floor ducts with slotted openings in vertical walls, pg and connected inlets at the ends to

air distribution manifold and transport body 2.

The disadvantage of these devices is that they do not provide effective ventilation of the material, especially if it is located in the central part of the warehouse.

The aim of the invention is to increase the efficiency of the process of ventilation of the material by increasing the total air supply and its differentiated distribution throughout the embankment.

15

This goal is achieved by the fact that the floor ducts of the proposed design have double sloping perforated roofs, and the air distribution manifold is equipped with rotary valves installed at the entrances of these ducts, while the transporting body is made in the form of an air duct, a vertical partition is mounted on the air duct of which.

FIG. 1 shows the proposed device, the plan; on firm. 2 is the same section in FIG. one; in fig. 3 - the same, section bb In figure 11

thirty

in fig. 4 - the same, section BB in fi 1.

The device consists of coaxially arranged floor ducts 1, including a pipe 2 of straight section, vertical C1; the base of which is a perforated grill 3 with openings providing directional exit of the air stream and a perforated double slope 4. At the entrance to each the box 1 has a rotary valve 5. The end section on the LN box is plugged, and the initial section is connected to the air distribution manifold 6, into which air is supplied by the fan 7. Along the longitudinal axis of the warehouse floor level is a longitudinal chanels 8 consisting of trans- porter channel 9, grille 10 and air distribution duct 11, along earozheloba higher level grille pivotally suspended from the vertical Gzeregorodka

12 of elastic material. Air supply under the air distributing ralette of the longitudinal air-wand, divided into autonomous areas, is made by fans

13 through the air intake ducts 14 located below the level of the warehouse floor.

The device works as follows.

When material is actively ventilated, the valves 5 of the floor ducts are rotated to the T position, providing air supply from the air distribution manifold b both to the pipe 2 of the floor duct 1 and to its dual sloping perforated roof 4. At the same time, air is supplied to the autonomous channels 14 sections of the air distribution duct 11 of the longitudinal air-hollow 8, which are adjoined by operating floor ducts. At the same time, due to the air supply through the perforated vertical walls of the floor ducts and the slopes of the lid, as well as through the air distribution distributor of the longitudinal chamfer, effective ventilation of the embankment of material throughout its volume is achieved.

Unloading of bulk material from the warehouse begins through the longitudinal air wand, as the air distribution grille is released, which are put into operation and the floor duct. To transfer the floor boxes to the transport mode, the rotary valves 5 are set to the position and at which air is only supplied to the pipe 2 and exits at high speed from the slot openings of the vertical grid 3 at an acute angle to its plane.

Under the influence of the kinetic energy of the air jets emerging from two adjacent floor ducts, the bulk material is blown off from the floor of the warehouse, is fed to the grid of the longitudinal air duct and transported along it to the place of unloading. At the same time, the air is supplied by the fans 13 only for the operating autonomous portions of the longitudinal chisel.

A vertical partition 12, located above the air distribution grill of the longitudinal chisel system, eliminates the scatter of material along the floor of the warehouse during transport and reduces its injury. When valve 5 is installed in position P, the supply of air to this floor duct from the air distribution manifold b is stopped.

Claims (2)

1. Kovalev Yu.P. Aerozheloba in grain warehouses. Overview information. Ser. Elevator prog K1shennost TSNIITEI MINZAG USSR, M., 1974. 2. Prospect of LorlnSA firm, France, Installation of ventilation and emptying of all compartments for storing grain with a flat bottom, 1972 (prototype).    7 FIG A F -. X XXX / J d.2 L-5 P FIG.   II ui.i