DE1971323U - DEVICE FOR CLEANING GRAIN. - Google Patents

Description

RUdOlT Linuciiau

ie. jaoDUS

Patent attorneys

Oldenburg

Utility model registration

Honkomp & Westerkamp OHG, 2849 Wostendonen

Device for cleaning grain

The invention "relates to a device for cleaning from grain from dust or other additions.

The invention aims to create a device of the type referred to above, with which, in the case of simple, compact design the grain can be completely freed from dust and similar impurities.

This object is achieved according to the invention in that in a housing a housing insert with an outer circumferential Grain chamber with grain inlet connection and an inner air chamber separated by a sieve plate is that the air chamber is open at the bottom, the grain chamber can be closed by a lid at the bottom, that in the lower In the area of the housing there is a C-Judge insert with an open top is arranged below the grain outlet nozzle, and that between the funnel insert and the outer wall of the housing Zv / ischenraum is provided with an air outlet nozzle.

The inventive works with this spatial structure Device based on the principle of centrifugal force. The grain, which is thrown into the grain chamber by means of a fan, collects in the grain chamber while the fan air is blowing

4454 / Sch - 2 -

with the dust particles entered the air chamber through the sieve plate. From here the air flows down into the Funnel insert and in this laterally upwards over the edge and again downwards "to the air outlet opening. If the grain chamber is sufficiently full, it is opened by lowering the lid, which is suspended from springs, whereupon the grain enters the funnel insert. Included the grain will be blown through again by the blower air exiting from the air chamber below and will be remainder Contaminants carried away.

An exemplary embodiment of the invention, from which further inventive features emerge, is shown in the drawing. Show it:

Fig. 1 is a vertical section through a device according to the invention and

FIG. 2 shows a section along the line A-B in FIG. 1.

The device has a cylindrical, funnel-shaped bottom tapered housing 1 with a cylindrical housing insert 2 arranged therein in the upper region. The housing insert 2 is through a arranged coaxially to the vertical axis of the housing 1 cylindrical screen plate 3 in an outer Grain chamber 2a and an inner air chamber 2b divided. The grain inlet connection 10 is through the housing 1 tangentially into the grain chamber 2a of the housing insert

2 introduced (Fig. 2). The air chamber 2b is open at the bottom and above, a height-adjustable cover 4- lockable or to open. The grain chamber 2a is closed at the top and can be closed at the bottom by a cover 5, which as Ring plate formed and a holding tube 14 on a spring suspension 15 is attached.

In the lower region of the housing 1, a funnel insert 7 is arranged such that there is a circumferential gap 16 between the funnel insert and the housing wall. The funnel-shaped lower part of the housing 1 opens into an air outlet _{nozzle 9 5} while the fan insert 7 opens at the bottom into a grain outlet nozzle 11 led out of the housing. Within the funnel insert, a deflecting cone 6, held by an axial holding rod 13, is arranged in the lower area above the grain outlet nozzle 11, preferably adjustable in height. The funnel insert 7 is pulled up with a cylindrical Yifandung 8 to over the lower edge of the housing insert 2 and here open at the top. The cylindrical wall 8 is perforated in the shape of a sieve. A pendulum flap is located in the grain outlet nozzle 11

The device works as follows: The grain-air mixture passes through the grain inlet nozzle 10 into the grain chamber 2a, in which it collects over the cover ~; 5, while the blower air enters the air chamber 2b through the sieve plate 3 and thereby dust particles, etc. from the

Takes grain. From the air chamber 2b, the air flows, as indicated by arrows, down into the funnel insert, laterally upwards in the funnel _{insert, over the upper hand of the cylindrical wall 8 and through the 2 w} i _SC hen space 16 down to the air outlet nozzle 9. Under the increasing load caused by the grain accumulating in the grain bin 2a, the cover 5 descends against the action of the spring suspension so that the grain trickles out. The air emerging from the air chamber flows through the grain once again, with the remaining impurities being carried away. The grain reaches the pendulum flap 12, which opens from case to lall. Within the air flow moving to the side, heavier dust particles pass with part of the air through the cylindrical wall 8, while the lighter dust particles are carried over the edge of the banding 8. The cleaning process can, among other things, be influenced by the fact that the cover 4 is lifted above the air chamber 2b so that air also escapes upwards here. The deflection cone 6 above the grain outlet nozzle 11 improves the deflection of the air to the sides.

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Claims (1)

RA. 305 251 * -3. e Protective talks; 1 ο device for cleaning grain from jams) "or other admixtures, through this. characterized in that in a housing (1) a housing insert (2) with a outer circumferential grain chamber (2a) with grain inlet nozzle (10) and an inner air chamber separated by a sieve plate (2ΐ>) is arranged that the air chamber below open, the grain chamber can be closed at the bottom by a cover (5) that a in the lower region of the housing (1) Hopper insert (7) open at the top with a grain outlet nozzle below (11) is arranged, and that between the funnel insert and the housing outer wall a gap (16) is provided with an air outlet nozzle (9). 2_. Device according to Claim 1, characterized in that the cover (5) is suspended from a spring suspension (15) with an adapter tube (14). 3 ^ device according to claim 1, characterized in that that the air chamber (2b) can be closed at the top by a height-adjustable cover (4). 4. Device according to one of the preceding claims, 6 - 44-54 / Sch - 6 - characterized in that between the housing insert (2) and the grain outlet nozzle (11) preferably has a conical air deflection cone (6) with its base at the bottom Is arranged adjustable in height. Device according to one of the preceding claims, characterized in that the upper region of the funnel insert (7) is designed as a cylindrical wall (8) with a sieve-like perforation. 6. Device according to one of the preceding claims, characterized in that a pendulum flap (12) is arranged in the G-egg outlet nozzle (11).