JPS6090084A - Receiving trough of cylindrical sorting hulling machine - 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] The present invention relates to a receiving trough for a cylindrical sorting rice huller.

Conventionally, a cylindrical sorting huller has a rotating sorting tube with many indentations and a receiving gutter inside, and while slowly rotating the sorting tube, a mixture of paddy and brown rice is removed from one end of the tube. We also supply
Flow through the sorting tube in the axial direction. In the middle of the flow, the mixed rice tries to be scooped up as the sorting cylinder rotates, but the brown rice tends to sink, gets stuck in the depression, and is lifted upwards, drawing a large parabola. Fall. On the other hand, the paddy can also be picked up, but since it does not fit into the dent, it falls in a small parabola.

A drain is installed at the point where the brown rice falls, so the paddy and brown rice are separated.

By the way, the present invention is aimed at improving the deframing rate (mixed polymerization of brown rice and paddy).
We focused on the fact that separating brown rice as finished rice from mixed rice with a high culling rate has higher sorting performance than separating brown rice from mixed rice with a low culling rate, and applied this to a cylindrical sorting huller. The present invention aims to provide a cylindrical sorting huller with high sorting performance.

This will be described below with reference to embodiments shown in the accompanying drawings. Fig. 1 shows a cross section of the entire cylindrical sorting huller A, which has a huller C placed on one side of the upper surface of the wind sorting device B, which is a rectangular box. A rotary sorter 111D is mounted to form the entire structure.

In the wind sorting device B, a scraped rice screw conveyor 1 consisting of a shaft that doubles as a scraped rice thrower shaft and a brown rice screw conveyor 2 consisting of a shaft that doubles as a brown rice thrower shaft are installed side by side. The suromi rice screw conveyor 1 has a surimi style sorting room 3,
The brown rice screw conveyor 2 is installed at the bottom of each finished rice sorting room 4. A suction dust extractor 5 is provided at one end in the longitudinal direction of the wind selection device B, a suction port 6 is provided at the other end, and a wind selection room 3 is installed.
, the sorting wind is flowing above the finished rice wind sorting room 4 and the Xiaomi wind sorting room 30.

On the machine side, there are a brown rice thrower 7 that communicates with the brown rice screw conveyor 1 and is driven by the conveyor shaft, and a brown rice thrower 8 that communicates with the brown rice screw conveyor 2 and is driven by the conveyor shaft. It is set up.

The hulling section C incorporates a pair of culm rolls 9, and has a bomber 10 installed above them, and the scraped rice screw conveyor 1 is placed below the culm removing rolls 9.

The rotary sorting taD has a primary sorting tube ml and a secondary sorting tube (2) suspended horizontally in two stages, upper and lower, inside a box-shaped case 12. These sorting tubes 1. The IIO axial direction is perpendicular to the axis of the culling roll 9.

These sorting tubes 1. A large number of hemispherical depressions 13 large enough to fit brown rice are formed over the entire inner circumference of II. The diameter of the hollow 13 is 5 to 6.5 mm, and the depth is 3 to 6.5 mm.
A hemisphere of about 4fi is appropriate. Sorting tube 1. Both ends of II are open, and various types of receiving troughs for receiving brown rice each having a roughly ■-shaped cross section are inserted and suspended horizontally therein as will be described later.

That is, as shown in FIG. 2, a secondary sorting pipe 14 and a supply conveyor 15 communicating with the dropped rice thrower 7 are installed horizontally in the secondary sorting tube I, and the secondary sorting tube In this case, a receiving trough 16 for finished rice and a receiving trough 17 for small rice are suspended horizontally. A gate valve 19 is connected to the end of the receiving side plate 18 of the secondary sorting receiving trough 14, and the supply conveyor 15 is provided with an opening 20 that is opened below the partition 19 over approximately the entire length. A gate valve 22 is also connected to the receiving side plate 21 of the opening 20 to adjust the degree of opening of the opening 20.

The finished rice receiving gutter 15 and the small rice receiving gutter 17 are installed side by side, but the opening 23 of the finished rice receiving gutter 16 is closer to the small rice receiving gutter 1.
It opens at a lower position than the opening 24 of No. 7.

A gate valve 26 is connected to the receiving side plate 25 of the finished rice receiving gutter 16, and a gate valve 28 is connected to the receiving side plate 27 of the small rice receiving gutter 17 to adjust the opening degree of each opening 23,24. .

The starting end of the supply container 115 communicates with the supply tank 29 facing the upper end of the dropped rice thrower 7, and its terminal end facing the inner surface of the primary sorting cylinder l. The terminal end of the receiving trough 14 for secondary sorting is connected to the inner surface of the rear body of the secondary sorting tube ■ (on the opposite side of the hulling section C, the right end in Fig. 1) through a shake 31, and is connected to the receiving trough 14 for finishing rice. The end of the gutter 16 communicates with the finished rice sorting chamber 4 in the wind sorting device B, and the end of the small rice receiving gutter 17 communicates with the front of the machine.

The heather embodiment has the above-mentioned configuration, so to explain its working conditions, when paddy is manually fed from a paddy bag to the hopper 10, it is dehulled by the hulling section C, and the paddy and brown rice are mixed. The rice, suroshimai, is wind-selected on the way down in the wind sorting section B to remove the rice husks and second grains, and falls onto the suroshimai screw conveyor 1, where it is thrown up by the surobachi rice thrower 7. and flows into the supply tank 29. It flows down from the supply tank 29 to the supply conveyor 15, thereby being supplied to the rear side of the machine inside the primary sorting tube l. Since the sorting cylinder I is rotating, the scraped rice that has been deposited by the supply is going to be pumped up by the rotation of the sorting cylinder I, but the brown rice has sunk and is stuck in the recess 13, and is not allowed to rise upwards. It is lifted up and released, and falls into the secondary sorting receiving trough 14. On the other hand, a part of the paddy mixed with brown rice jumps into the opening 20 of the supply conveyor 15, mixes with new fallen rice, and is again supplied to the inner surface of the sorting cylinder (2) and circulated. The paddy that did not jump into the opening 20 of the supply conveyor 15 is transferred to the hopper 1 from the end of the sorting tube 1.
0 and undergoes the culling action again.

The brown rice with some paddy mixed in, which is fed from the end of the secondary sorting receiver IjI114 through the chute 31 into the secondary sorting tube ■, is subjected to the same action as the secondary sorting tube ■, and only normal brown rice is finished. The rice is pumped into the rice catcher 16. Moreover, since the parabola of the small rice is drawn large, it is pumped into the small rice receiving trough 17. The small rice receiving trough 17 communicates with the front of the machine, and the small rice is carried out of the machine from here. The brown rice mixed with a small amount of paddy that cannot be pumped into either the finishing pipe 16 or the small rice receiving pipe 17 flows into the shukugi-style sorting room 3, where it is mixed with new paddy grains, and is sent to the next sorting pipe I again. supplied to

FIG. 3 shows that in the embodiment shown in FIG. 1 shown in FIG. 2, the small rice receiving gutter 17 is replaced with a finished rice receiving gutter 16', the opening 24 is made larger, and the finished rice receiving gutter 16' is used instead of the small rice receiving gutter 17. Instead, a new lower trunk circulation receiving trough 32 is provided. Therefore, the brown rice slightly mixed with paddy is pumped up by this lower body circulation receiving trough 23, is supplied to the vicinity of the opening of the chute 31, and is circulated inside the secondary sorting cylinder (2). For this reason, the brown rice whose paddy has been reduced is not mixed into the newly removed rice, so that the separation performance of the whole sorting machine is improved.

FIG. 4 shows that in the second embodiment shown in FIG. 3, a rough sorting receiving trough 33 is provided in place of the supply conveyor 15, and its terminal end is communicated with the inner surface of the secondary sorting tube 2 through a chute 31'. There is. In addition, the receiving trough 14 for secondary sorting is replaced by the receiving trough 1 for finishing rice.
6', and its end is connected to the receiving trough 16 for the finished rice of the secondary sorting tube ■.
through a chute 34. Therefore, −
Since there is no supply conveyor 15 inside the next sorting tube I, the dropped rice thrower 7 (not shown in Figure 1) is extended and the primary sorting tube is opened from the rear of the machine! It is designed to be supplied inside.

In summary, the present invention provides a plurality of stages of substantially horizontal sorting tubes arranged side by side, each of these sorting tubes having a receiving gutter, and at least one of these sorting tubes having only one inside the sorting tube. Since this is a receiving trough for a cylindrical sorting rice huller equipped with a receiving trough that circulates water, it has the following effects.

■Since multiple stages of sorting cylinders are installed in parallel, it is possible to improve the sorting performance by sequentially moving from rough sorting to fine sorting, and also to circulate the inside of the sorting cylinder using a receiving gutter that has a certain degree of sorting performance. Therefore, the amount of flow back to the huller or other sorting tube can be reduced, the deculling rate can be gradually increased, and the sorting performance can be improved. Furthermore, since the receiving gutter is used as a means for circulating only within the sorting cylinder, it can also be used for other functions, such as a supply conveyor, and the number of parts can be reduced.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional front view of the entire cylindrical rice sorting huller that is an embodiment of the present invention, Fig. 2 is a cross-sectional view taken along the line X-X in Fig.
The figure shows a sectional view of the alternative embodiment shown in FIG. 2, and FIG. 4 shows a sectional view of the alternative embodiment shown in FIG. 1...-Next sorting part, ■...Secondary sorting cylinder, 14.
... Secondary sorting receiver 9 gutter, 15 ... Supply conveyor,
16...Receiving trough for finished rice, 17...Receiving trough for small rice. Patent Applicant: Seirei Kogyo Co., Ltd., tE (spontaneous) September 1, 1981 Manabu Shiga, Commissioner of the Japan Patent Office, Tokusho Sho 59-140171 No. 2, Name of invention + 31, Rotary type Grain sorting device (corrected today) 3. Relationship with the ?ili correction incident Patent applicant address 428 Tainami, Okayama City Name (516) Seirei Kogyo Co., Ltd. Application, specification and drawings ff1ll Store 1, Invention Name: Rotary grain sorting device 2, Claims [Field of industrial application] The present invention relates to a sorting device for sorting brown rice from mixed rice after hulling. [Prior art] A rotary sorting cylinder having a number of concave portions formed on its inner peripheral surface is installed horizontally, and one end of the rotary sorting cylinder has a supply section for a mixture of brown rice and paddy, and the other end has a paddy discharge section. A rotary grain sorting device in which a brown rice receiving trough extending in the axial direction of the sorting barrel is provided in the rotary sorting barrel is disclosed in Japanese Patent Application Laid-Open No. 49-24746 as a prior art. This is disclosed in the official gazette.The Koa rotary grain sorting device is a rice grain sorter that has four repetitions of flow in which the mixed rice supplied into the sorting barrel is scraped up to a height formed by the rotation of the sorting barrel, and then falls to the bottom. As the mixed rice moves to the discharge side while forming a fluidized bed, the brown rice of the mixed rice gets stuck in the four parts, is lifted up to a high position, and then falls, and some of the paddy of the mixed rice gets stuck in the recesses. In this method, the brown rice falling from a high position is caught in the brown rice receiving gutter and taken out by using the motion of falling from a lower position than the brown rice, but in this case, even if it is the same brown rice, ,
Depending on the grain, the degree to which it fits into the recess differs slightly depending on its size and moisture content, so some of the brown rice may fall at a relatively low position, and some of the rice that is scraped against dirt may be compared. Hold it to the target position 2. The waste will get mixed into the brown rice receiving trough. Therefore, in order to improve the accuracy of sorting brown rice by reducing the number of rice grains that enter the brown rice receiving trough, it is a good idea to reduce the frequency of rice grains that fit into the recesses in the sorting barrel as much as possible. [Problems to be Solved by the Invention] However, the rotary grain sorting device of the prior art described above supplies the mixed rice after hulling to a wide part of the inner peripheral surface on the supply side at one end of the sorting barrel. Therefore, most of the mixed rice supplied is supplied to the inner peripheral surface of the sorting cylinder where a fluidized bed of mixed rice is not formed, and the mixed rice supplied here is In order to avoid scattering over a wide area due to collision with the inner peripheral surface of the sorting cylinder and rotational movement of the sorting cylinder, and forming a fluidized bed immediately, the mixed rice is poured into the recesses on the inner peripheral surface of the sorting cylinder. The number of paddy that fits in increases, and the number of brown rice that fits in the recess decreases by that amount, so the number of paddy that enters the brown rice catcher increases, and the number of brown rice that enters the brown rice catcher decreases. , the accuracy of sorting brown rice decreased, as well as the sorting ability. The present invention provides, in this type of rotary grain sorting device, by supplying mixed rice into the sorting barrel to a portion where the supplied mixed rice immediately forms a fluidized bed.
This eliminates the above-mentioned drawbacks. [Means for Solving the Problems] Therefore, the present invention provides a rotary sorting cylinder having a plurality of concave portions formed on its inner circumferential surface horizontally, and one end of the rotary sorting cylinder is used for mixing brown rice and paddy. A rotary grain sorting device having one end on a rice supply side and one end on a paddy discharge side, and a brown rice receiving trough extending in the axial direction of the sorting barrel inside the rotary sorting barrel. In the feed side of the rotary sorting cylinder, a supply port for the mixed rice to the sorting cylinder is provided, and the feed port is directed toward the mixed rice fluidized bed in the sorting cylinder near its lower end. It has a configuration that is similar to the above. [Operations and Effects of the Invention] With this structure, the mixed rice supplied from the supply port to the supply side of the sorting cylinder is distributed to the bottom of the inner peripheral surface of the sorting cylinder as the sorting cylinder rotates. Since the mixed rice flows into the lower end of the fluidized bed formed on the lower side with respect to the rotation direction and immediately forms a fluidized bed, this supplied mixed rice does not flow into the fluidized bed as in the prior art It will not be widely dispersed by supplying it to areas where it is not formed. That is, according to the present invention, when the mixed rice is supplied into the rotating sorting cylinder, it is possible to prevent the supplied mixed rice from widely scattering on the inner peripheral surface of the sorting cylinder where a fluidized bed is not formed. The number of rice grains that fit into the recesses on the inner circumferential surface of the sorting cylinder decreases, and the number of brown rice that fits into the recesses increases accordingly, and the supplied mixed rice flows from the supply side of the sorting cylinder to the outside of the sorting cylinder. Overflow can be reduced. Therefore, the number of paddy entering the brown rice receiving trough decreases while the number of brown rice increases, which not only improves the accuracy of sorting brown rice compared to the prior art, but also increases the sorting capacity. Moreover, it has the effect of significantly reducing the loss of mixed rice overflowing outside the sorting cylinder. [Example] Next, an example in which the present invention is applied to a primary sorting cylinder of a two-stage rotary grain sorting device in a hulling sorter will be described. A vertical cross-sectional view of the entire rice grain sorting machine A is shown, which includes a wind sorting device B that is a rectangular box, a hulling section C mounted on the top of the wind sorting device B, and a two-stage rotary type The entire system is composed of a sorting device. In the wind sorting device B, a mixed rice conveyor 1 configured to double as a mixed rice thrower shaft and a brown rice conveyor 2 configured to double as a brown rice thrower shaft are installed in parallel.
is disposed at the bottom of the winnowing chamber 3 for the husked rice dehulled in the hulling section C, and the brown rice conveyor 2 is disposed at the bottom of the winnowing chamber 4 for the finished brown rice. A suction dust extractor 5 is provided at one end in the longitudinal direction of the wind sorting device B, and an atmospheric suction port 6.6' is provided at the other end and the top surface, and air is drawn into the wind sorting device B from this atmospheric suction port 6.6'. The introduced wind passes through the wind selection chamber 4 and small rice wind selection chamber 30 for the finished brown rice, and the wind selection room 3 for the fallen rice, and is then sucked into the suction dust extractor 5. A mixed rice thrower 7 communicating with the mixed rice conveyor 1 and a brown rice thrower 8 communicating with the brown rice conveyor 2 are provided on the side surface of the wind sorting device B.
It is equipped with a paddy supply bomber 10 and a pair of right and left culm removal rolls 9, and below the culm removal rolls 9, a winnowing chamber 3 for the fallen rice is seen. The two-stage rotary sorting device comprises a primary sorting cylinder I and a secondary sorting cylinder (2) horizontally disposed in upper and lower stages in a box-shaped case 12, and both sorting cylinders 1. II is rotatably supported, and has a recess 13 on its inner surface that is large enough to fit brown rice.
A large number of 11&1 recesses are formed. In this case, recess 1
3 is suitably a hemispherical shape with an inner diameter of about 5 to 6 degrees and a depth of about 3 to 41 inches. Further, both ends of the secondary sorting cylinder I and the secondary sorting cylinder (2) are open, and their axes are perpendicular to the axis of the culling roll 9, and these two sorting cylinders! ,
2 is rotationally driven in the right direction as shown by the arrow in FIG. 2 by belt transmission from the motor M provided in the wind selection device vB. Both sorting cylinders 1. Inside (2), various receiving channels such as brown rice receiving channels are arranged so as to extend in the axial direction of the sorting barrel. That is, in the secondary sorting cylinder I, a brown rice receiving trough 18 having a spiral conveyor 14 therein is arranged such that both ends of the brown rice receiving trough m18 are fixed to the box-shaped case 12, and this brown rice is On the left side of the receiving trough 18, that is, in the part on the side where mixed rice is scraped up inside the primary sorting cylinder 1, a feeder 21 which also serves as a mixed rice receiving trough and also has a spiral conveyor 15 inside is arranged substantially parallel to the brown rice holder 1118. There is. On the other hand, inside the secondary sorting cylinder 1, there is a finished brown rice receiving trough 25 with a built-in spiral conveyor 16, and a small rice receiving trough 17 with a built-in spiral conveyor 27.
However, the finished brown rice receiver AI25 is on the left side, that is, the secondary sorting cylinder ■
It is arranged so as to be located on the side where brown rice is scraped up inside. The mixed rice supply tank 29 provided above one end of the box-shaped case 12 allows the upper end of the mixed rice thrower 7 to be seen through, while the lower part of the tank 29 is connected to the secondary sorting cylinder I.
The supply port 21' at the other end of the supply gutter 21 is connected to one end of the feeder 21 in the sorting cylinder I, and the feed port 21' at the other end of the feed gutter 21 is connected to the feed port 21' at the other end of the sorting cylinder I. The opening is opened toward the mixed rice fluidized bed S in the sorting cylinder 1 near the lower end thereof. Further, a chute 20 communicating with the paddy supply hopper 10 in the hulling section C is provided below the discharge side I# at one end of the secondary sorting cylinder I, and the other end of the brown rice receiving trough 18 in the secondary sorting cylinder I. The outlet of the side is communicated through the chute 31 into the supply side ■' at the other end of the secondary sorting cylinder ■, and the outlet of the wind sorting device B is connected to the discharge side ■'' at one end of the secondary sorting cylinder ■. Slide chute 2 connected to mixed rice conveyor 1
In addition, one end of the finished brown rice receiving trough 25 in the secondary sorting cylinder (2) is connected to the finished brown rice selection chamber 4 in the air sorting device B through the chute 24, and furthermore, the secondary sorting cylinder (1) The outlet of one end of the small rice receiving trough 17 in the small rice duct 17 is communicated with the small rice wind sorting chamber 30 in the wind sorting device B through a chute (not shown). In addition, the brown rice receiving gutter 18 and the supply gutter 21 which also serves as a mixed rice receiving gutter
, the finishing brown rice receiving gutter 25 and the small rice receiving gutter 17 are provided with joint gate valves 19.2 that are rotatably operated from the outside of the box-like case 12.
2, 26, and 28 are provided respectively. When paddy is supplied to the paddy supply hopper 10 during operation, the mixed rice dehulled in the hulling section C is removed from the chaff by the wind flowing toward the suction dust remover 5 in the wind sorting chamber 3 for removed rice. After being removed, the mixed rice enters the mixed rice conveyor l, and this mixed rice is sent to the supply gutter 21 in the primary sorting cylinder 1 via the mixed rice thrower 7 and the tank 29, and then to the feed gutter 21 at the other end of the feed gutter 21. It is supplied from the supply port 21' to the supply side 1' in the secondary sorting cylinder (2). In this way, the supply gutter 2 is connected to the supply side ■' in the next sorting cylinder 1.
The mixed rice supplied from the mixed rice supply port 21' of No. 1 is scraped up to a height formed by the rightward rotation of the secondary sorting cylinder I, and then falls to the bottom repeatedly to form a fluidized bed S. The rice is then transferred toward the discharge side of the primary sorting cylinder I, and once a fluidized bed S of the mixed rice is formed in the sorting cylinder II in this way, it is then fed into the sorting cylinder L. The mixed rice reaches the fluidized bed S from the mixed rice supply port 21' and flows into the vicinity of its lower end, thereby immediately forming a fluidized bed. During the flow, the brown rice in the mixed rice fits into the recess I3 on the inner surface of the secondary sorting cylinder I. After being lifted up to a relatively high place in the state of being held, it falls from the recess 13 and enters both the supply l121 which also serves as a mixed rice receiving gutter and the brown rice receiving gutter 18, while some paddy remains in the supply gutter 21. The brown rice that has entered the supply gutter 21 is sent to the supply side I' in the sorting cylinder 1 along with the mixed rice supplied to the sorting cylinder 1, where it is subjected to a second sorting process. Brown rice light 4I
f! The brown rice that has entered 1B is sent to the secondary sorting cylinder H via the chute 31, where it is carefully sorted. In other words, the brown rice supplied to the supply side ■'' in the secondary sorting cylinder ■ flows as described above, while being transferred to the discharge side ■''. After the small rice inside is sorted to enter the small rice receiving trough 17, it flows out from the discharge side to the mixed rice conveyor 1 through the chute 23, while the finished brown rice that entered the finished brown rice receiving trough 25 is transferred to the chute. After entering the brown rice conveyor 2 via the brown rice conveyor 24, the brown rice is taken out of the machine from the brown rice thrower 8. Further, in the secondary sorting cylinder I, the brown rice is transferred to the brown rice receiving trough 18.
and the mixed rice after being removed to enter the supply gutter 21 is -
The proportion of paddy increases as it goes to the discharge side Irr of the next sorting barrel (2), and is sent from the discharge side I'' to the paddy supply hopper 10 via the chute 20, where the culling action is performed again. 4. Drawings The simple explanatory drawings show an embodiment of the present invention, and FIG. 1 is a longitudinal sectional front view of the entire rice huller sorting machine, and FIG. 2 is a sectional view taken along line XX in FIG. 1. Sorting cylinder, 13... Concavity, 1'... Supply side, ■#... Discharge side, 18... Brown rice catcher, 2
1...Feeder that doubles as a mixed rice receiving trough, 21'...Mixed rice supply port, S...Fluidized bed. Patent applicant Seirei Kogyo Co., Ltd.

Claims (1)

[Claims] A receiver in which a plurality of approximately horizontal sorting tubes are arranged in parallel, each of these sorting tubes has a receiving gutter, and at least one of these sorting tubes is configured to circulate only the inside of the sorting tube. A receiving gutter for a cylindrical sorting huller with a gutter attached.