JPH0423920A - Selecting device of grain - Google Patents

Abstract

PURPOSE:To suppress area and height of device and to miniaturize a grain selecting device by equipping a rethreshing part and a scalper side by side in a close state in the horizontal direction right above a position of a second selecting part. CONSTITUTION:A first selecting part 20 to remove large admixtures is provided with a scalper 23 and a second selecting part 21 to remove small admixtures in a material to be threshed fed from the first selecting part 20 is laid below the first selecting part 20. A rethreshing part 22 which threshes the large admixtures and the small admixtures and sends to the second selecting part 21 and a transporting means 40 which transports the small admixtures from the second selecting part 21 to the rethreshing part 22 are laid. The rethreshing part 22 and the scalper 23 are set side by side in a closed state in the horizontal direction right above a position of the second selecting part 21 and the large admixtures on the scalper 23 are dropped to an admixture inlet 42 of the rethreshing part 22 with revolution of the scalper 23. Consequently, area and height of device can be suppressed and the grain selecting device can be miniaturized.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention provides a first sorting section for removing coarse impurities from the threshed material to be supplied, and a scalper is provided below the first sorting section. A second sorting section is provided to remove small impurities from the threshed material supplied from the first sorting section, and the coarse impurities and the small impurities are threshed and supplied to the second sorting section. The present invention relates to a grain sorting device that is provided with a section and a conveying means for conveying small foreign matter from the second sorting section to the re-threshing section.

[Conventional technology]

Country elevators and the like mainly transport harvested products from combine harvesters. However, if there is a large amount of straw waste or ear pieces mixed in, the fluidity of the grains may be poor, which may interfere with subsequent drying and conditioning operations. In order to facilitate subsequent operations, it is necessary to remove these straw waste and ear pieces during the receiving process. For this reason, the above-mentioned grain sorting device (so-called rough sorting machine) is used.

By the way, coarse foreign matter discharged from the first sorting section is often supplied to the re-threshing section by falling under its own weight. In this case, the re-threshing section was to be provided below the first sorting section.

Therefore, the following two cases can be considered as the configuration of the grain sorting device.

(i) A second sorting section and a re-threshing section are arranged horizontally below the first sorting section.

(ii) The first sorting section, the re-threshing section, and the second sorting section are installed one above the other in this order.

[Problem to be solved by the invention]

The second sorting section usually includes a wind sorting section and a swing sorting section, and is larger than the first sorting section and the re-threshing section. Therefore, if the re-threshing section and the second sorting section are arranged horizontally as in the case (i) above, the area occupied by the apparatus becomes large.

On the other hand, in case (ii) above, the height of the device becomes large.

An object of the present invention is to eliminate the above-mentioned conventional drawbacks and reduce the size and height of the device, thereby reducing the size of the grain sorting device.

[Means to solve the problem]

In order to achieve this object, the characteristic configuration of the grain sorting device according to the present invention is that the re-threshing section and the scalper are arranged horizontally in close proximity to each other directly above the second sorting section, The structure is such that coarse contaminants on the scalper flow down to a contaminant receiving port of the re-threshing section as the scalper rotates.

[For production]

Since the re-threshing section and the first sorting section are installed above the second sorting section, it is possible to suppress the area occupied by the grain sorting device from increasing.

Furthermore, since the first sorting section and the re-threshing section are arranged horizontally, the height of the grain sorting device can be suppressed.

In addition, by configuring as described above, the coarse contaminants discharged from the first sorting section can be supplied to the re-threshing section without providing a separate conveying means.

〔Effect of the invention〕

Therefore, the overall structure of the grain sorting device can be made smaller without complicating the device structure by adding a conveyance means or the like.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

As shown in Figures 2 and 3, two receiving hoppers (1
), a grain sorting device (2) that performs rough selection of grain, etc., a receiving weighing machine (3), a dryer (5), a plurality of receiving tanks (4),
Multiple storage silos (6), huller (7), paddy sorter (8)
), grain sorter (9), stone remover (10), sales weighing machine (
11), shipping weighing machine (12), multiple shipping tanks (1
3), and a country elevator equipped with a dust collector (14) and the like.

An explanation will be added regarding the grain sorting device (2).

As shown in FIG. 1, the grain sorting device (2) includes a first sorting section (20) for removing coarse impurities from the threshed material supplied from the receiving hopper (1), etc.; (20) The second sorting section (
21), and a re-threshing section (22) that threshes the coarse impurities and the small impurities and supplies them to the second sorting section (21).

The first sorting section (20) includes a scalper (23) which is a wire mesh type rotary sorting cylinder, and an input hopper (24) that supplies the threshed material in the input pipe (25) into the first sorting section (20). , a supply roll (26) for distributing the supplied threshed material almost evenly around the outer periphery of the scalper (23), and a second sorting section (21) for the threshed material that has passed through the scalper (23). and a processed material discharge port (28) for discharging the processed material to.

In addition, (29) in the figure is a feeding roll.

That is, in the threshed material supplied from the input hopper (24), coarse impurities such as straw and ear pieces are removed from the scalper (23).
It remains on the top and rotates in the direction of the arrow to move to the re-threshing section (22), which will be described later.
) flows down to the foreign matter receiving port (42). On the other hand, fine grains and small impurities pass through the wire mesh, are collected by the plate blades (30), further pass through the wire mesh, and flow down to the treated material discharge port (28).

The re-threshing section (22) is arranged horizontally in close proximity to the scalper (23) at a location directly above the second sorting section (21). A contaminant receiving port (42) receives coarse contaminants flowing down from above the scalpa (23).
), a handling cylinder (43) for threshing foreign matter supplied from the foreign matter receiving port (42), and a receiving net (44), and the fine grains passing through the receiving net (44) are transferred to a second Contaminants that are supplied to the sorting section (21) and do not pass through the receiving net (44) are collected in the handling cylinder (4).
With the rotation of step 3), it is sent in the direction of the rotational axis of the handling cylinder and discharged out of the device. In addition, (45) in the figure is a receiving port for grains with branch stalks that are supplied from the rice sorter (8).

By the way, at the starting end of the foreign matter receiving port (42), there is a rocking plate (42a) which can be freely switched between the scalper side and the handling barrel side.
When the rocking plate (42a) is swung toward the scalper, foreign matter on the scalper (23) flows down into the foreign matter receiving port (42). On the other hand, the rocking plate (
42a) is swung toward the handling cylinder side, Scarpa (
23) The foreign matter above also flows down to the treated material outlet (28).

Incidentally, when the grain sorting device (2) is used as a so-called coarse sorter and a re-threshing machine, the rocking plate (42a) is rocked on the Scarpa side, while when it is used as a so-called fine sorter and threshing machine, the rocking plate (42a) is rocked on the handling barrel side. .

The second sorting section (21) is a threshing product supplied from the first sorting section (20) and the re-threshing section (22) through the first input port (31a) and the second input port (31b), respectively. A wind selection section (32) that performs wind selection, and two sorting wire mesh units (33) that shake and sort the grains that have passed through the wind selection section (32).
An expansion chamber (35) collects light objects such as shingles and dust from the threshing material that has passed through the wind sorting section (32).
), and an aspirator (36) for discharging relatively light objects and dust from among the lightweight objects collected in the expansion chamber (35) to the dust collector (14).

Each of the sorting wire mesh units (33) is equipped with an upper screen (38) for removing large straw waste and grains attached to branches and a lower screen (39) for separating sand and the like smaller than fine grains.

That is, straw waste, grains with branch stalks, etc. that have not passed through the upper screen (38) are supplied to the re-threshing section (22) via a re-threshing screw conveyor (40) serving as a conveying means. In addition, the fine grains that did not pass through the lower screen (39) are discharged from the fine grain outlet (4).
1).

The re-threshing screw conveyor (40) includes a lower lateral screw conveyor (4Qa), a vertical screw conveyor (40b), and an upper lateral screw conveyor (40c). Further, (47) is a swinging mechanism that swings the sorting wire mesh unit (33).

Next, some of the work processes in the country elevator will be explained with reference to FIG.

In the receiving process, the threshed material brought in is transferred to the receiving hopper (
1) is supplied to the grain sorting device (2). Then, as described above, coarse contaminants are removed in the first sorting section (20), and small contaminants are removed in the second sorting section (21). The coarse impurities and small impurities are threshed in the re-threshing section (22) and then
It is supplied to the sorting section (21). Use this to remove straw waste and ear pieces from the threshed material. And 2 installed in parallel
The threshed material was transported to the receiving weighing machine (3) through one of the three reserve tanks (50), where it was weighed, and the product was sorted by the same type or by the same moisture value range by the receiving line (Ll). It is designed to be stored in each of the cargo receiving tanks (4) in the same state.

In other words, in the receiving process, the grain sorting device (2)
It is designed to function as a so-called coarse sorter and re-threshing machine.

In the drying process, grains with a high moisture value stored in the receiving tank (4) or grains stored in the storage silo (6) are
It is conveyed to the dryer (5) by the supply line (L2) and is dried until it reaches an appropriate moisture value.

The grains dried in the dryer (5) are transferred to the reduction line (L3).
is transported to a storage silo (6) and stored again. However, in order to also allow the grain conveyed by the feed line (L2) to pass through the dryer (5) multiple times, the reduction line (L3) is connected to the branch (a) to the feed line (L2). It is equipped with

By the way, with government-distributed rice, it is necessary to ensure that straw waste and loose rice are removed from the grain before it is hulled and sorted before being shipped.

The selection process carried out in such cases requires storage silos (
The grains stored in 6) are supplied to the grain sorting device (2) via a carry-out line (L4), an auxiliary tank (51), and a sales weighing machine (11). And grain sorting device (2)
The grain from which straw waste etc. have been removed is passed through a swinging type paddy sorter (
8), where it is separated into dehulled rice, chaff, and grains with stalks attached. The paddy is returned to the storage silo (6) via the reserve tank (50), the receiving weighing machine (3), and the receiving line (Ll).

The rice that is shed is sorted by a grain sorter (9) and a stone remover (10). Further, the grains attached to the branches and stalks are fed back to the re-threshing section (22) of the grain sorting device (2), and the stubble is removed therefrom.

In other words, in the selection process, the grain sorting device (2)
It functions as a so-called sorting machine and awning machine.

In the hulling process, dried grain stored in the storage silo (6) is supplied to the hulling machine (7) via the carry-out line (L4) and the auxiliary tank (51). Then, the rice huller (7
) is separated into paddy, a mixture of paddy and brown rice, and brown rice using a paddy sorter (8). Paddy sorting machine (8)
The brown rice that has been sorted and collected is stored in an auxiliary tank (
52) and a shipping weighing machine (12), and are transported to shipping tanks (13) and shipped.

[Another example]

In the above embodiment, the second sorting section (2) was configured to perform both wind sorting and swing sorting, but it may be configured to perform only one of them.

In the above embodiment, the grain sorting device is applied to a country elevator, but it can also be applied to a rice center, etc.

It should be noted that the present invention is not limited to the structure shown in the accompanying drawings by adding reference numerals in the claims for convenient comparison with the drawings.

[Brief explanation of the drawing]

The drawings show an embodiment of the grain sorting device according to the present invention.
The figure is a front view of the main part of the grain sorting device, FIG. 2 is an explanatory diagram of the grain conveyance path, and FIG. 3 is an overall plan view of the country elevator. (20)...First sorting section, (21)...
Second sorting section, (22)...-- Re-threshing section, (23)
......-Scarpa, (40)...Transportation means, (42)...Contaminant receiving port.

Claims (1)

[Scope of Claims] A scalper (23) is provided in a first sorting section (20) for removing coarse impurities from the threshed material to be supplied, and a scalper (23) is provided below the first sorting section (20). A second sorting section (21) for removing small impurities from the threshed material supplied from the section (20)
is provided, and a re-threshing section (2) that threshes the coarse foreign matter and the small foreign matter and supplies it to the second sorting section (21).
2), and a conveyance means (40) for conveying small impurities from the second sorting section (21) to the re-threshing section (22), the grain sorting device comprising: (22) and the scalper (23) are arranged horizontally in close proximity to each other directly above the second sorting section (21), and coarse contaminants on the scalper (23) are removed from the scalper (23). The grain sorting device is configured to flow down into the foreign matter receiving port (42) of the re-threshing section (22) as the grain sorting device (23) rotates.