JP2023019351A - Grain preparation facility - Google Patents

Abstract

To provide a hulling rice sorter capable of quickly processing both short and long grain varieties.SOLUTION: A brown rice switching device 92 for switching supplying of brown rice discharged from a hulling rice sorter 20b to a rice milling machine conveyance path 84b for conveying the brown rice to a friction-type rice milling machine 30a or a brown rice sorter conveyance path 84a for conveying the brown rice to a brown rice sorter 30 is provided. A rice milling machine 40a comprises a friction-type rice milling machine 40a that mills the brown rice supplied from the brown rice sorter 30 or the hulling rice sorter 20b, and a grinding-type rice milling machine 40b that grinds milled rice resulting from milling at the friction-type rice milling machine 40a. A milled rice switching device 93 for switching supplying of the rice milled at the friction-type rice milling machine 40a to a grinding-type rice milling machine conveyance path 85a for conveying the milled rice to the grinding-type rice milling machine 40b or a storage part conveyance path 85c for conveying the milled rice to a storage part 100a is provided.SELECTED DRAWING: Figure 2

Description

TECHNICAL FIELD The present invention relates to grain preparation equipment, and more particularly to a configuration compatible with short-grain and long-grain grains.

A rice huller that hulls conventionally harvested and dried paddy into brown rice, a rice polishing machine that polishes brown rice, a rice sorter that removes small rice, a brown rice storage tank that stores brown rice, and a storage tank that stores polished rice. A grain preparation facility provided with a milled rice storage tank is known (see Patent Document 1).

JP 2013-71063 A

In Patent Document 1, it is convenient to be able to select the work process that passes through the rice sorter and reaches the rice milling machine and the work process that does not go through the rice sorter and reaches the rice milling machine, but the grain properties, that is, Japonica rice It has a configuration that can be selected and set arbitrarily regardless of whether it is short grain rice or long grain rice such as indica rice.

SUMMARY OF THE INVENTION An object of the present invention is to obtain a structure that can handle both short-grain and long-grain grains regardless of the type of grain.

In view of the above, the present invention has taken the following technical measures.

The invention according to claim 1 comprises a hull sorter 20b, a brown rice sorter 30 for sorting small grains from the brown rice hulled and sorted by the hull sorter 20b, a rice mill 40, and a rice milled by the rice mill 40. In a grain preparation facility equipped with a polished rice sorter 50 for sorting small grains from polished rice, a rice milling machine conveying path 84b for conveying the supply of brown rice discharged from the hulling sorter 20b to the friction rice milling machine 30a or the brown rice The brown rice switching device 92 is provided for switching to the unpolished rice sorter transport path 84a that transports the unpolished rice to the unpolished rice sorter 30. Equipped with a rice milling machine 40a and a grinding rice milling machine 40b for grinding the rice milled by the friction rice milling machine 40a, and a supply of the milled rice milled by the friction rice milling machine 40a to the grinding rice milling machine 40b. A polished rice switching device 93 is provided for switching between the grinding-type rice milling machine conveying path 85a and the storing section conveying path 85c for conveying to the storing section 100a.

The invention according to claim 2 is the invention according to claim 1, wherein a husking device 22 and a swinging sorting plate 24 for sorting the mixed rice of unhulled rice and unhulled rice processed by the husking device 22 are provided. Two sliding sorters 20 are provided, one of which is a hull sorter 20b for long grain seeds with a convex sorting surface 24b of the rocking sorting plate 24, and the other is a hull sorter 20a for short grain seeds with a concave type. and a dedicated transport path 82 for the brown rice sorter for transporting the brown rice hulled and sorted by the short grain hull sorter 20a to the brown rice sorter 30, and the brown rice switching device 92 is , The supply of brown rice hulled and sorted by the long-grain seed huller sorter 20b is switched to the brown rice sorter conveying path 84a or the rice milling machine conveying path 84b.

According to the first aspect of the invention, the rice milling machine transport path 84b that transports the brown rice discharged from the huller sorter 20b to the friction rice milling machine 30a or the supply of the brown rice to the brown rice sorter (brown rice sorter) ) 30 is provided with the unpolished rice switching device 92 for switching to the unpolished rice sorter transport path 84a, so that the unpolished rice can be subjected to the desired rice polishing process or small grain sorting process. In addition, sorting processing and rice polishing processing can be performed according to the type of rice such as long-grain rice and short-grain rice and the state of rice.

Further, the polished rice milling machine 40a is switched to the grinding type rice milling machine transport path 85a for transporting the supply of polished rice to the grinding type rice milling machine 40b or to the storing section transporting path 85c for transporting to the storing section 100a. Since the switching device 93 is provided, it is possible to select whether or not to perform the grinding process by the grinding type rice milling machine 40b.

According to the invention of claim 2, in addition to the effect of claim 1, brown rice that has been hulled and sorted by a short grain hull sorter (short grain hull sorter) 20a Since the dedicated transport path 82 for the unpolished rice sorter is provided for transporting the unpolished rice to the unpolished rice sorter 30, in the case of short-grain brown rice, the waste rice is removed by the unpolished rice sorter 30, and the unpolished rice is supplied to the friction rice milling machine 40a. , the rice polishing process in the friction type rice polishing machine 40a becomes smooth.

In the case of long-grain rice, it is possible to polish the rice with the friction-type rice milling machine 40a without going through the brown rice sorting machine 30 and remove the waste rice with the white rice sorting machine 50. It is possible to prevent the sizing from being removed. Therefore, preparation processing suitable for both long-grain and short-grain grains can be performed.

FIG. 1 is a processing process diagram in a medium-long grain seed line for preparing grains according to an embodiment of the present invention. (a) A front cross-sectional view of the internal configuration of a rice hull sorter according to an embodiment of the present invention and (b) A front cross-sectional view of a paddy storage unit according to an embodiment of the present invention. (A) Cross-sectional view of swing sorting plate concave portion (lower protrusion) according to an embodiment of the present invention, (B) Cross-sectional view of swing sorting plate convex portion (upper protrusion) according to an embodiment of the present invention Sorting distribution situation of the rocking sorting plate of the rice hull sorter according to the embodiment of the present invention

An embodiment of the present invention will be described based on the drawings.

FIGS. 1 and 2 are process diagrams of a short grain line for preparing short grain grains such as japonica rice and a medium/long grain line for preparing medium/long grain grains such as indica rice, and FIG. 1 is the flow. 2A and 2B are process diagrams showing the drying preparation equipment for each step.

In FIG. 2, the grain processing process includes a grain dryer 10, two huller sorters 20a and 20b, a brown rice sorter 30, two rice mills 40a and 40b, a white rice sorter 50, and a storage unit 100a, 100b.

The grain dryer 10 tempers and dries the received grain, and the dry grain discharge section 11 is provided with an identification sensor 70 as short grain/long grain identification means.

The two rice hull sorters 20a and 20b are composed of a paddy hopper 21 for storing paddy, a dehulling device 22 for hulling, a wind sorting unit 23 for wind sorting the chaff, and a multi-stage rocking motion for sorting the grain from the brown rice. A rocking sorting device 25 having a sorting plate 24 and a brown rice elevator 26 for taking out the brown rice sorted by the rocking sorting device 25 are provided. The hulling device 22a of one of the two rice huller sorters 20a is configured to hull the rice by impacting the impeller type. It is configured in a concave shape (lower protrusion) that is superior to For example, a plurality of concave portions are formed by pressing a flat plate surface from above downward (FIG. 3(A)). The husking device 22b of the other rice huller (swing sorter) 20b has a roll-type configuration in which the hulls are hulled by passing between a pair of rolls that rotate in opposite directions. The sorting surface (sorting plate surface) 24b is configured in a convex shape (upper protrusion) that is superior to short grain seeds. For example, a flat plate surface is press-pressed downward from above to form a plurality of concave portions, and then the plate is turned upside down (Fig. 1(B)).

The hull sorter 20 having the above configuration is hereinafter referred to as the impeller type hull sorter 20a or the short grain hull sorter 20a for the reference 20a, and the roll type hull sorter 20b or the long grain hull sorter 20b. It may be separated from the hull sorter 20b.

Each sorting surface of the multi-stage swing sorting device 25 is divided into a paddy area M where paddy is distributed, a mixed rice area K where mixed rice of paddy and brown rice is distributed, and a brown rice area G where brown rice is distributed. The grains in each area are taken out separately by the unpolished rice partition plate 25G and the unhulled rice partition plate 25M provided on the discharge side of the rocking sorting device 25 (Fig. 4).

The brown rice sorting machine 30 will be explained. A sorting cylinder 31 having a large number of sorting holes f through which waste rice and small rice pass is formed in the machine body of a vertically long posture, and grains put into an input hopper 32 of the unpolished rice sorter 30 are placed in the sorting cylinder 31 and placed upward. The transport spirals 33 transported to the rice sorter are configured to rotate around the vertical axis by the rice selector drive motor 34 . The small rice that has passed through the sorting hole f is discharged from a small rice outlet 35, and the sorted rice (sorted rice) that has not passed through the sorting hole f and is transferred to the upper part by the transfer spiral 33 is discharged from a sorted rice outlet 36. - 特許庁

Next, the two rice milling machines 40a and 40b will be described. One of the rice milling machines 40a is equipped with a friction-type polishing means. A pressure plate 45 for setting the degree of polishing is provided at the white rice outlet 44 to set the inside of the polishing chamber 41 to a desired polishing pressure state. When the brown rice in the input hopper 46 of the rice milling machine 40a is supplied to the polishing chamber 41, the action of the polishing roll 42 and the pressure plate 45 separates the bran from the brown rice and turns it into polished rice.

The other rice milling machine 40b equipped with a grinding-type polishing means as a polishing means has a well-known configuration in which a grindstone-like grinding roll 47 is provided on the vertical axis to grind the white rice from the upper hopper portion 48 in the illustrated example.

In the polished rice sorting machine 50, crushed grains and the like passing through the sorting holes 52 of the sorting rotary cylinder 51 which receives the white rice of the input hopper 51 and rotates around the horizontal axis reach the end of the rotary cylinder 51 and are scooped up by the grain lifting blades 53. It is configured to be separated from the grain-sorted polished rice discharged from the sorted polished rice discharge port 54 .

By the way, the dried paddy discharged from the grain dryer 10 is supplied to the paddy sorter 20 through the transfer paths 81a and 81b for paddy, and the impeller type (for short grain) paddy sorter 20a or the roll type (For long grain) A first switching valve 91 is provided as a paddy supply switching device for guiding dry paddy to the paddy sorter 20b. The switching operation of the first switching valve 91 can be switched according to the judgment result of the discrimination sensor 70 whether the grain is short grain or long grain, or by manual operation. In the case of long grain seeds, it is supplied to the roll type huller sorter 20b.

A special transport path 82 for the unpolished rice sorter is provided as the only transport path from the discharge port of the unpolished rice elevator 26a of the unhulled rice sorter 20a to supply unpolished rice to the input hopper 32 of the unpolished rice sorter 30. Further, the regulated brown rice of the brown rice sorter 30 is guided to the charging hopper 46 of the friction rice milling machine 40a through the regulated brown rice transfer path 83. As shown in FIG. A brown rice transfer path (brown rice transfer cylinder) 84 is provided at the discharge port of the brown rice elevator 26b of the other rice huller sorter 20b. A second switching valve (brown rice switching device) 92 is provided as a switching device for unpolished rice for switching to the transporting path 84a or the rice milling machine transporting path 84b that supplies brown rice to the input hopper 46 of the friction rice milling machine 40a.

A polished rice transfer path (polished rice transfer cylinder) 85 is provided from the polished rice discharge port 44 of the friction type rice mill 40a, and the polished rice transfer path 85 is used to supply the polished rice to the grinding type rice polishing machine 40b. Polished rice is supplied to a path (grinding rice milling machine conveying path) 85a, a polished rice sorting machine conveying path 85b supplied to the input hopper 51 of the polished rice sorter 50, or a polished rice storage tank (storage section) 100a as a polished rice storage section. A third switching valve (polished rice switching device) 93 is provided as a polished rice switching device for switching and guiding to the storing portion conveying path 85c.

A ground rice transfer path 86 for guiding the ground rice from the ground rice outlet 49 of the grinding type rice milling machine 40b to the polished rice sorter 50 is provided.

A storage section transfer path 87 is provided at the sorted white rice discharge port 54 of the white rice sorter 50 to guide the sorted polished rice storage tank (storage section) 100b as a sorted white rice storage section.

In the above configuration, the process of processing short-grain grains indicated by solid line arrows in FIG. 1 will be described. When short-grain grains are discharged from the grain dryer 10, they are supplied to an impeller type (for short-grain) huller sorter 20a. In this impeller type (for short grain) hulling and sorting machine 20a, dehulling and sorting are performed. Equipped with an impeller-type dehulling device 22a, it can be adapted to short-grain seeds. In addition, depending on the case, medium grains and long grains can also be handled, but it is preferable that the impeller rotation speed can be changed and controlled so that medium grains are processed at a slightly constant speed and long grains are processed at a lower speed. Since the sorting plate surface 24a of the rocking sorting plate 24 of the impeller type hull sorter 20a, which is suitable for short grains, is formed in a concave shape (lower projection), it is suitable for short grains.

All of the brown rice from the unpolished rice elevator 26a of the impeller type huller sorter 20a is supplied to the input hopper 32 of the brown rice sorter 30 through the unpolished rice sorter-dedicated transport path 82. It is supplied to the input hopper 46 of the machine 40a.

The polished rice processed and discharged by the friction type rice milling machine 40a is stored and stored in the polished rice storage tank 100a through the storage portion conveying path 85c by the switching operation of the third switching valve 93 .

In the case of short-grain rice, the unpolished rice sorter 30 removes waste rice, etc., and supplies the rice to the friction rice milling machine 30a, thereby facilitating the rice polishing process in the friction rice milling machine 30a.

Next, the treatment process for the long-grain seeds indicated by the dotted line in FIG. 1 will be described. When the long grain grains are discharged from the grain dryer 10, they are supplied to a roll type (for long grain) huller sorter 20b. In this roll type (for long grain) hulling and sorting machine 20b, dehulling and sorting processing is performed, but it is possible to adapt to long grains by providing a roll type dehulling device 22b. Further, since the sorting plate surface 24b of the rocking sorting plate 24 of the roll type (for long grain) hull sorter 20b is constructed in a convex shape (upper protrusion), it is convenient for long grains. The unpolished rice discharged from the unpolished rice elevator 26b of the roll type hull sorter 20b is supplied to the input hopper 46 of the friction type rice mill 40a by the switching operation of the second switching valve 92 and the rice mill conveying path 84b. Then, the polished rice processed and discharged by the friction type rice polishing machine 40a is transferred to the grinding type rice polishing machine 40b through the grinding rice polishing machine conveying path 85a by the switching operation of the third switching valve 93 of the polished rice transfer tube 85. can be supplied to By supplying the polished rice to the grinding-type rice polishing machine 40b, the surface of the polished rice can be further polished to remove the bran and make so-called rinse-free rice. The ground polished rice is supplied to the polished rice sorting machine 50 through the ground rice transfer path 86, and broken rice and small rice are removed. The sorted white rice that has passed through the white rice sorter 50 can be stored in the sorted white rice storage tank 100b.

In the case of long-grain rice, it is possible to perform the polishing process with the friction type rice milling machine 30a without going through the brown rice sorting machine 30, and remove the waste rice with the white rice sorting machine 50. never removed.

The brown rice discharged from the brown rice elevator 26b of the roll type (for long grain) swing sorter 20b by the switching operation of the second switching valve 92 of the brown rice transfer cylinder 84 and the brown rice sorter conveying path 84a is transferred to the brown rice sorter. 30 feeding hoppers 32, and it is possible to sort and process long-grain brown rice such as small rice. Further, the sorted brown rice can be supplied to the friction rice milling machine 40a (two-dot chain line in FIG. 1). Further, by switching operation of the third switching valve 93 of the polished rice transfer tube 85, the polished rice of the friction type rice milling machine 40a can be supplied to the polished rice sorting machine 50 via the polished rice sorting machine conveying path 85b, and the short grain type/long grain type The white rice sorting process can be performed regardless of the type (double-dot chain line in the same).

As described above, the brown rice discharged from the brown rice elevator 26b of the roll type (for long grain) swing sorter 20b by the switching operation of the second switching valve 92 of the brown rice transfer cylinder 84 and the brown rice sorter conveying path 84a is The unpolished rice can be supplied to the input hopper 32 of the unpolished rice sorter 30, and the unpolished rice can be subjected to the desired rice-polishing process or the sorting process of small grains.

In addition, sorting processing and rice polishing work can be performed according to the type and condition of the long-grain or short-grain rice.

20a Short-grain rice hull sorter 20b Hull sorter 22 Dehulling device 24 Swing sorting plate 24a Sorting surface 24b Sorting surface 30 Brown rice sorter 40a Friction rice mill 40b Grinding rice mill 50 Polished rice sorter 82 Brown rice sorter Machine dedicated transport path 84a Brown rice sorter transport path 84b Rice mill transport path 85a Grinding rice mill transport path 85c Reservoir transport path 92 Brown rice switching device 93 Polished rice switching device

Claims (2)

A hull sorter (20b), a brown rice sorter (30) for sorting small grains from brown rice hulled and sorted by the hull sorter (20b), a rice milling machine (40), and a rice milling machine (40). A grain preparation facility comprising a polished rice sorter (50) for sorting out small grains from the processed white rice, wherein a supply of brown rice discharged from the hull sorter (20b) is transported to a friction rice mill (30a). A brown rice switching device (92) for switching to a brown rice sorter transport path (84b) or a brown rice sorter transport path (84a) for transporting the brown rice to the brown rice sorter (30) is provided, and the rice milling machine (40a) sorts brown rice. A friction rice milling machine (40a) that mills the brown rice supplied from the machine (30) or the hull sorter (20b), and a grinding rice milling machine ( 40b), and transports the supply of polished rice milled by the friction rice mill (40a) to the grinding rice milling machine transport path (85a) or storage section (100a) for transporting the supply to the grinding rice milling machine (40b) A grain preparation facility characterized by providing a polished rice switching device (93) for switching to a storing portion conveying path (85c) for storing grains. A husking device (22) and two rice hullers (20) provided with rocking sorting plates (24) for sorting the mixed rice of unhulled rice and brown rice processed by the husking device (22). One of the bases is configured as a hull sorter (20b) for long grain seeds with a convex sorting surface (24b) of the rocking sorting plate (24), and the other is configured as a hull sorter (20a) for short grain seeds with a concave shape. and a brown rice sorter dedicated transport path (82) for transporting the brown rice hulled and sorted by the short grain hull sorter (20a) to the brown rice sorter (30), The switching device (92) is configured to switch the supply of brown rice hulled and sorted by the long-grain seed huller sorter (20b) to the brown rice sorter transport path (84a) or the rice mill transport path (84b). The grain preparation facility of claim 1.

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