SU843844A1 - Loose material bin - Google Patents

Description

one

The invention relates to agriculture, and in particular to devices for drying and storing bulk materials.

A well-known bulk solids contain two vertically and concentrically mounted with the formation of an annular chamber perforated cylinder, a discharge chamber with a pipe to the bottom of the outer cylinder, and a movable valve placed in the inner cylinder 1.

The disadvantage of such a coffer is low ventilation efficiency, with the result that i forms stagnant zones, which lead to deterioration and loss of production. I

The aim of the invention is to reduce operating costs and increase the efficiency of ventilation by partially mixing the processed bulk material.

The goal is achieved by the fact that a grid and a travel valve stop are attached to the upper part of the outer cylinder, and

ok unloading chamber

it is supplied with the mesh gate.

Inner u

The lindra in the lower part can be provided with a cone-shaped neck, the wide part of which is located in

discharge chamber with the formation of the last annular gap.

In order to change the size of the annular gap in the neck, a damper is installed in

a pipe with a confuser with the ability to move relative to the walls of the discharge chamber.

The drawing shows the proposed bulk material bin. The hitch contains a vertically and concentrically mounted inner 1 and outer 2 perforated cylinders. The upper end of the cylinder 1 has a conical expansion upward - the diffuser 3, and to the bottom

its end is adjoined by a neck 4 extended downwards, which, together with the walls of the conical unloading chamber 5, forms a slit 6 for unloading material and passing air for ventilation entering through the walls of the movable perforated valve 7 with a confuser hinged to an external drive for raising and lowering.

The stationary valve 8 in the cylinder 1 is lifted by means of a cable drive, removed from its cavity. and is fixed by a stopper 9 above the surface of the end face of the cylinder 1 attached to the grid 10 and to the outer supporting structure,

which is mounted on the upper end and also holds the grid 10.

Clanan 8 is reinforced on the lower cone with a layer of 11 elastic material. In the center of the chamber 5, which narrows down, there is an integrated discharge port 12 with a shutter 13, which blocks the passage from this chamber, forming in it the state of "grid," open, "closed."

The device of the ventilated bins operates as follows.

Bulk material is fed through a discharger (not shown in the figure) from above into an annular section chamber formed by cylinders I and 2 with perforated walls, ventilated or dried by cross-blowing the agent coming out of cylinder 1, the collector height of which is registered and fixed by valve 8 according to with the level of material. In this case, the valve-nipple 7 with the confuser is in the lower position, connecting the cavity of the cylinder 1 with the cavity of the pipe 12 of the chamber 5. To implement the material recirculation mode, which is in the annular chamber, the valve 8 is raised by a cable drive, is output from the cylinder 1 above the diffuser 3 and fixed in the restrictor 9, providing a free flow of pneumatic mixture from the cavity of the cylinder 1 to the outside, to the grid 10, and the valve-pipe 7 is lifted along the guides in the cylinder 1, forming an annular gap between the edge of the confuser and the walls of the chamber 5 for passage from the annular chamber of the bulk material. The shutter 13 forms in the passage of the nozzle 12 a state of "grid. Under the action of a nior stream coming through the pipe 12, the material coming from the chamber 5 is picked up into the passage of the gate-valve 7, and in the flow of the pneumatic mixture through the cylinder 1 is fed through the diffuser 3 to the grid 10.

The seeds hit the end of the conical bottom of the valve 8 cm thickened by layer 11 and, in addition, the expansion of the cylinder 1 with a diffuser 3. Then the air passes outside through the grid 10, and the seeds in free fall enter the annular chamber. At the same time, the resistance of the pneumatic mixture to the flow through the side perforated surface of the cylinder 1 is greater, through the passage ao to its internal diametral section. The speed of departure of seeds from cylinder 1 into the annular chamber is controlled by the shutter 13.

To stop the recirculation of the material, the valve-nipple 7 is lowered and pressed, by the edge of the confuser to the surface of the chamber 5.

The unloading process from chamber 5 is performed as follows.

The gate valve 7 is raised so that

to ensure continuity of flow of bulk material through the nozzle

12 and shutter 13 set in the state

"open.

The application of the proposed bins makes it possible to eliminate the external recirculation device, using for this purpose the internal cavity of the bins of the existing device. The ability to feed the agent for drying into the bins and unload the material from it through one common pipe allows us to exclude the flow of this agent through a separate pipeline and pipe.

Pneumatic conveying through an internal recirculation circuit reduces material transfer times and energy losses.

All this allows us to simplify the design of the ventilated bins, to increase the efficiency of its use, to reduce the metal content, to reduce its external dimensions.

Claims (3)

1. Spray for bulk materials containing two vertically and concentrically installed. with the formation of an annular chamber of a perforated cylinder, an unloading chamber with a branch pipe, attached to the bottom of the end of the cylinder, and a subshell valve placed in an inner cylinder, characterized in that, in order to reduce operating costs and increase ventilation efficiency, a mesh and travel stop of the movable valve are attached to the upper part of the outer cylinder, and the outlet of the discharge chamber is provided with a mesh valve. 2. A closure according to claim 1, characterized in that the inner cylinder in the lower part is provided with a cone-shaped neck, a wide part of which is placed in the discharge chamber with the formation of a circular ring from the last. 3.Zakrom on PP. 1 and 2, characterized in that, in order to change the value an annular slot, in the neck there is a valve in the form of a pipe with a confuser which can be moved relative to the walls of the discharge chamber. Information sources, taken into account during the examination 1. Krausp V. R. and others. Automation of grain points. M., Rosselkhozizdat, 1973, p. 103-104, fig. 31.  one