JPH03213182A - Grain sorting device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

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 supplied, and a first sorting section for removing coarse impurities from the threshed material supplied from the first sorting section. a second sorting section for removing small impurities, a re-threshing section for threshing the coarse impurities and the small impurities, and a return for returning the re-thrested material from the re-threshing section to the first sorting section. a conveying device, a first conveying means for conveying coarse contaminants from the first sorting section to the re-threshing section, and a second conveying means for conveying small contaminants from the second sorting section to the re-threshing section. The present invention relates to a grain sorting device comprising:

[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 cause problems in subsequent drying, conditioning, and other 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.

In the above-mentioned grain sorting device, the coarse impurities and small impurities discharged from both sorting sections are re-thrested in the re-threshing section, and the re-thrested material is returned to the first sorting section for re-sorting. It looks like this.

Conventionally, the contaminant receiving port of the re-threshing section has been arranged close to the contaminant discharge port of the second sorting section. Therefore, the coarse contaminants discharged from the first sorting section are conveyed to the contaminant receiving port of the re-threshing section by a screw conveyor or the like.

[Problem to be solved by the invention]

In the above-mentioned conventional technology, there is a risk that coarse contaminants transported by a screw conveyor or the like may enter the space between the screw and the casing, causing a blockage, and this may cause problems in the sorting process.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned conventional drawbacks and to provide a grain sorting device that can transport coarse foreign matter smoothly without clogging.

[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 such that the foreign material discharge port of the first sorting section and the foreign material receiving port of the re-threshing section are arranged close to each other in a vertically opposed state. and the first conveyance means is formed of a cylindrical body that communicates and connects the contaminant discharge port and the contaminant receiving port so that the coarse contaminants fall under their own weight.

[For production]

The coarse contaminants discharged from the contaminant discharge port of the first sorting section are supplied to the contaminant receiving port of the re-threshing section via the cylinder while falling under their own weight. That is, coarse contaminants can be supplied to the re-threshing section without using a screw conveyor or the like.

〔Effect of the invention〕

Therefore, it is possible to reduce the risk of clogging caused by coarse contaminants, which occurs when a screw conveyor or the like is used.

Furthermore, since the foreign material discharge port and the foreign material receiving port are located close to each other, even when the diameter of the cylinder is made as large as possible in order to allow the foreign material to fall under its own weight without clogging, the overall structure is large due to the cylindrical body. It is possible to suppress the increase in cost and price.

〔Example〕

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

As shown in Figures 2 and 4, 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) for threshing the coarse foreign matter and the small foreign matter.

The first sorting section (20) includes a wire mesh type rotating sorting cylinder (hereinafter referred to as
(23), an input hopper (24) that supplies the threshed material in the input pipe (25) into the first sorting section (20), and the supplied threshed material to the Scarpa (23); a supply roll (26) for distributing the coarse contaminants almost evenly around the outer periphery of the contaminants, and a contaminant discharge port (
27), and a processed material discharge port (28) for discharging the threshed material that has passed through the scalper (23) to the second sorting section (21).
It is equipped with

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).
remain on top and rotate in the direction of the arrow to open the foreign matter discharge port (2).
Flows down to 7). 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 second sorting section (21) includes a first wind sorting section (32) that performs wind sorting of the threshed material supplied from the input port (31), and grains that have passed through the first wind sorting section (32). 2 sorting wire mesh units) (33) for shaking and sorting, and its sorting wire mesh unit) (
A second wind sorting section (3
4), an expansion chamber/<- (35) that collects light objects such as debris and dust from the threshing processed material that has passed through the first wind sorting section (32) and the second wind sorting section (34), and the expansion chamber. (35) is equipped with an aspirator (36) for discharging relatively light lightweight objects and dust to the dust collector (14).

The sorting wire mesh unit (33) has an upper mesh (37) for removing large straw waste, large stones, etc., a medium-fine mesh (38) for separating grains with attached branches and stalks, etc. that are larger than fine grains, and a sand mesh smaller than fine grains. It is equipped with a lower screen (39) for separating etc.

That is, straw waste, grains with branch stalks, etc. that did not pass through the upper screen (37) or the medium-thin (38) are supplied to the re-threshing section (22) via the re-threshing screw conveyor (40). 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 (40a), 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).

The re-threshing section (22) includes a handling cylinder (43) for threshing foreign matter supplied from a foreign matter receiving port (42), and a receiving net (44).
), and the fine grains that have passed through the receiving net (44) are returned to the first sorting section (20) via a return screw conveyor (45). Contaminants that do not pass through the receiving net (44) are sent in the direction of the rotation axis of the handling cylinder (43) as the handling cylinder (43) rotates, and are discharged out of the apparatus.

In addition to the coarse impurities from the first sorting section (20), the re-threshing section (22) also contains straw waste from the second sorting section (21) and ramus from the paddy sorter (8). Adhesive grains, etc. are supplied.

Further, the foreign matter discharge port (27) of the first sorting section (20) and the foreign matter receiving port (42) of the re-threshing section (22) are arranged close to each other in a vertically opposed manner, and the first sorting section ( The foreign material discharge port (27) and the foreign material receiving port (42) are arranged so that the coarse foreign material from the foreign material receiving port (20) falls under its own weight to the foreign material receiving port (42).
A cylindrical body (46) is formed to communicate and connect with 2).

That is, the reduction screw conveyor (45) corresponds to a reduction conveyance device, the cylinder body 46) corresponds to a first conveyance means, and the re-threshing screw conveyor (40) corresponds to a second conveyance means. .

Next, some of the work processes in the country elevator will be explained with reference to FIGS. 1 to 3.

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
It is reduced to the sorting section 0). Use this to remove straw waste and ear pieces from the threshed material. Then, the cargo receiving weighing machine (
3), the threshed material is weighed, and transferred to the receiving line (
They are stored in each of the receiving tanks (4) in a state where they are sorted by the same type or by the same moisture value range by Ll).

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

In the mixing and storage step, as shown in FIG.
%) is dried by the dryer (5) to a preliminary moisture value (e.g. 20%) at which it can be stored for - hours, and the grain is dried in the silo (6A) located at the upper side of the transport line (L4). ). Next, the grains dried to a moisture value lower than the preliminary moisture value (for example, 15%) are transferred to the lower side of the transport line (6A) than the silo (6A) where the grains with the preliminary moisture value are stored. Silo (6B)
The grains with different moisture values stored in the two silos (6A) and (6B) are transferred to the carry-out line (L).
, ), by mixing during conveying through the mixing line (L, ), the overall moisture value is reduced to the pre-moisture value (20%
) and a low moisture value (15%) with an intermediate moisture value (17,5%)
and both silos (6A).

It is stored in another silo (6C) located between (6B).

As mentioned above, since the grain transportation routes for the receiving process, drying process, and mixing and storage process are different, it is possible to perform the above three processes in parallel, and the operating rate of the equipment can be improved. It looks like this.

By the way, with government-distributed rice, it is necessary to ensure that straw waste and dehulled 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 pared rice 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 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.

Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of drawings]

The drawings show an embodiment of the grain sorting device according to the present invention.
2 is an explanatory diagram of a grain conveyance path, FIG. 3 is an explanatory diagram of grain mixing, and FIG. 4 is an overall plan view of a country elevator. (20)...First sorting section, (21)...
・Second sorting section, (22)... Re-threshing section, (27
)...Contaminant discharge port, (40)...Second conveyance means, (42)...Contaminant reception port, (4
5)...Reduction conveyance device, (46)...
First conveyance means.

Claims (1)

[Claims] A first sorting section (20) for removing coarse impurities from the threshed material supplied, and a first sorting section (20) for removing small impurities from the threshed material supplied from the first sorting section (20). a second sorting section (21), a re-threshing section (22) for threshing the coarse contaminants and the small contaminants, and a re-threshing section (22) for threshing the coarse impurities and the small contaminants; 20)
5), a first conveying means (46) for conveying coarse contaminants from the first sorting section (20) to the re-threshing section (22), and small contaminants from the second sorting section (21). a second conveying means (40) for conveying grains to the re-threshing section (22), the grain sorting device comprising: a foreign material discharge port (27) of the first sorting section (20); The contaminant receiving port (42) of the part (22) is arranged close to the first conveying means (46) so as to face each other vertically.
) is formed of a cylindrical body that communicates and connects the foreign matter discharge port (27) and the foreign matter reception port (42) so that the coarse foreign matter falls under its own weight.