JPH09121670A - Storage and drying bin - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the drying efficiency of unhulled rice grains in the bins for drying and storing grains and facilitate the rotation between a plurality of drying and storing bins. SOLUTION: The grain-drying and storing bin 48 is divided with a plurality of longitudinal walls 1, 1..., and the partition wall 25 is formed at the center in the transverse direction to divide the spaces into two rows whereby a plurality of drying chambers 10 are formed with the longitudinal walls 1 and the partition walls 25. Above the storing and drying bin 48, the grain carrying-in conveyer 45 and the carrying-out conveyer 49 are set in parallel and both of them are made switchable with a flow-dividing valve. Simultaneously, an air duct 14 is formed beneath the partition wall 25 and air nozzles 17 are formed protrusively from the air duct 14 into the lower center of individual drying chambers 10, 10,... to introduce dry air. The lower part of the air-sucking unit 18 is set over the air nozzle 17 and the upper part of the air-sucking unit 18 is extended to the upper part of the bin 48 whereby the stored grains are conveyed upward through the air-sucking unit 18 by the air jet flow from the air nozzle 17.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention increases the drying efficiency of paddy in a dry storage bottle for drying and storing grains such as rice and wheat, and at the same time facilitates rotation between a plurality of dry storage bottles. Regarding

[0002]

2. Description of the Related Art Conventionally, in facilities for drying and polishing rice such as rice centers and country elevators, a plurality of storage / drying bins are arranged in a drying section for drying and storing. As shown in FIG. 5, the storage / drying bin forms a rotation series B by linearly connecting a plurality of the storage / drying bins 48. In a facility with a large grain handling capacity, a plurality of rotation series B are arranged. Then, as shown in FIG. 5, in each rotation series B, there is a carry-in conveyor 45 for loading the objects (grains) to be conveyed received from the cargo receiving section into the respective storage / drying bins 48, 48, ... Place a room temperature and humidity dryer 57 for drying the added grains on the upper part of the rear of the rotation series B, and extend an air duct from the room temperature and humidity dryer 57 to store each Dry bottle 4
The room temperature and humidity are fed into the room.

On the other hand, a drying chamber is formed in the upper portion of the storage / drying bin 48, and the air mesh 12 is disposed on the lower surface of the drying chamber as shown in FIG. The air mesh 12 has a large number of fumaroles, and normal temperature and humidity air is sent into the drying chamber through the fumaroles to dry the grains. Furthermore,
Each storage / drying bottle 4 constituting the rotation series B
An unloading conveyor 49 is disposed below the drying chambers 8.48 ... so as to pass through the left and right sides. When unloading or rotating dried grains in the drying chamber, the unloading conveyor 49 is used. Throw in. A rotation valve is provided in front of the carry-out conveyor 49, and the rotation valve is selected from either the carry-out conveyor 49 and the connecting conveyor connected to the silo for storing, or the elevator connected to the carry-in conveyor 45. To be able to connect to each other. By connecting an elevator to the carry-out conveyor 49, the grains can be transported to the storage / drying bin 48 again for rotation.

[0004]

However, in the prior art, the rotation series B in which a plurality of storage / drying bins 48, 48 ... Are linearly arranged has a configuration in which a plurality of storage / drying bins are arranged with a passage interposed therebetween. In addition, a room-temperature / constant-humidity dryer 57, an air duct, an elevator, etc. are arranged for each rotation series B, which increases the building pay rate in the facility and limits the arrangement of other equipment. And the cost has increased accordingly. In addition, the carry-out conveyor 49 needs to pass through the lower part of the storage / drying bin 48 and be provided with a rotation valve below at the forefront of the rotation series B. As shown in FIG. Or, it was necessary to place the storage / drying bottle 48 on the upper part of the raised foundation. FIG.
As shown in (1), since the charging port for charging the carry-out conveyor 49 was arranged on the side, a large angle of repose and a large amount of grains remained without being discharged. Furthermore, when carrying out the rotation work, the carry-in conveyor 45 is used again,
The rotation work cannot be performed while the grains received by the receiving unit are being put into the storage drying bin 48,
It was a structure that could not work at the same time. Therefore, it has been desired to improve the space efficiency in the facility and make the rotation work smooth.

[0005]

The present invention uses the following means in order to solve the above problems. That is, by introducing dry air into the lower part of the storage and drying bottle 48,
This dry air is jetted upward from an air nozzle 17 arranged in the lower center, and a suction unit 18 is provided above the air nozzle 17.
The lower part of the suction bin 18 is placed above the storage and drying bottle 4
8 was extended to the upper part of the No. 8 and the stored grain was configured to be conveyed upward through the suction section by the jet flow of the air nozzle 17. Further, a carry-in conveyor and a carry-out conveyor are arranged in parallel on the upper part of the storage / drying bin 48, and a diversion valve 24 is provided above the carry-in conveyor 45 and the carry-out conveyor 49.
The end portion of the suction unit 18 is communicated with the suction unit 18 via a transfer pipe 19, the grains in the lower portion of the storage and drying bottle 48 are pressure-fed upward, and the input of the grains can be switched between a carry-in conveyor and a carry-out conveyor. . Further, the storage / drying bin 48 is divided into a plurality of front and rear walls 1.1 ... In the front-rear direction, and a partition wall 25 is further provided at the center of the left and right to form two columns in the left and right. 25 to form a plurality of drying chambers 10, an air duct 14 is provided below the partition wall 25, and an air nozzle 17 is provided in the lower center of each of the drying chambers 10 ... It was configured to project.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The problems and configurations to be solved by the present invention are as described above. Next, an embodiment of the present invention shown in the attached drawings will be described. FIG. 1 is a side view partial cross-sectional view in which a plurality of storage / drying bins are linearly arranged, FIG. 2 is a cross-sectional view of the storage / drying bin in which an ejector-type paddy transport device is arranged in each drying chamber, and FIG.
4 is a block diagram showing a process of drying and storing paddy, FIG. 4 is a cross-sectional view of a row of storage and drying bins, FIG. 5 is a side view showing a conventional rotation series, and FIG. 6 is a diagram showing residues in the conventional storage and drying bins. It is a front sectional view.

A grain drying and storage system in a country elevator will be described with reference to FIG.
Grain (paddy) harvested by each farmer is loaded from the cargo receiving section 41 of the building to the cargo receiving conveyor 42, and is inherited to the carry-in conveyor 45 via the cargo-receptive rough sorting machine 43 and the elevator 44, and the carry-in conveyor 45 is It is conveyed to the drying unit 47 via the. In the drying section 47, the carry-in conveyor 4
Each storage and drying bin 48.48.
, And the normal temperature and constant humidity air generated by the normal temperature and constant humidity dryer 57 is pushed in to dry the grain to a predetermined water content. The dried paddy dried in the storage / drying bins 48, 48 ...
0, the grain is sent to each silo 53 of the storage unit 52 via the carry-in conveyor 51 to store the grain. The grain stored in the silos 53, 53 ... Is carried out to the adjusting unit 55 including a huller, a rice mill, etc. via the discharge conveyor 54, and the adjusting unit 55 adjusts the product grain prepared. Configure the system to ship.

In the drying section 47, a plurality of storage / drying bins 48 ... As shown in FIG. For each of the rotation series B, a carry-in conveyor 45 composed of a slat conveyor is installed above the storage / drying bins 48. Each storage / drying bin 48 on the lower surface of the carry-in conveyor 45
48 ... Opening / closing valves 30, 30 ... Are arranged at the upper portion, and opening / closing operations of the opening / closing valves 30, 30. It can be put into the bins 48, 48 ...
At a position rearward of the rear end of the rotation series B,
A room-temperature constant-humidity dryer 57 is provided, the air duct 14 is connected to the outlet of the room-temperature constant-humidity dryer 57, and the air duct 14 penetrates the lower portions of the dry storage bins 48, 48 ... , Extends to the frontmost dry storage bin 48. Further, on the upper part of the rotation series B, a carry-out conveyor 49 is arranged in parallel with the carry-in conveyor 45. The carry-out conveyor 49 is composed of a slat conveyor, and a discharge port 49a is formed at the front end of each of the storage / drying bins 48, 48 ,.
・ ········ Dries the dried grain forward.

Next, the structure of the storage / drying bottle 48 will be described with reference to FIGS. 1, 2 and 4. The storage / drying bottle 48 is partitioned by a front and rear wall 1 and a side wall 2 that partition the front and rear. At the lower part of the storage / drying bottle 48, an air mesh 12 having a large number of fumaroles 12a, 12a ... Is arranged, and a space above the air mesh 12 is provided in a drying chamber 1
The air box 11 has a space below the air mesh 12 as 0. Inside the air box 11, there are arranged air ducts 14 that penetrate the lower portions of the front and rear walls 1.1 ... And extend forward from the room temperature and humidity dryer 57. In the air duct 14, room temperature and humidity air generated by the room temperature and humidity dryer 57 is blown.

As shown in FIG. 2, a partition wall 25 extends from the upper surface to the air mesh 12 below the upper surface of the dry storage bins 48 at a substantially central position in the left-right direction, and the partition walls 25 extend right and left in the storage-dry bins 48. It constitutes the drying chamber 10.10. The air duct 14 is arranged below the partition wall 25 (below the position between the left and right drying chambers 10). Furthermore,
The carry-in conveyors 45 and 45 and the carry-out conveyors 49 and 49 are arranged above the drying chambers 10 and 10 on the left and right. However, as shown in FIG. 4, it is also possible to form one line.

Next, an ejector type paddy transporting device E for transporting the grains in the drying chamber 10 while drying them upward is shown in FIG.
This will be described with reference to FIG. The ejector type paddy transporting device E includes an air nozzle 17, a suction unit 18 for sucking grains and a transport pipe 19. In the air box 11, on the side surface of the air duct 14, air pipes 15.1.
5 is inserted so that the compressed air in the air duct 14 can be taken out. The air pipes 15 and 15 extend to the center of the left and right air meshes 12 and 12 and are bent upward. Air shutters 16 are provided at the ends of the left and right air pipes 15, respectively, so that they can be opened and closed to take in or stop blowing air. An air nozzle 17 is fixedly installed above the air shutter 16. The air nozzle 17 is projected above the center of the air mesh 12. Above the air nozzle 17, a suction part 18 having a vertical axis is arranged, and a suction port 18a at the lower end of the suction part 18 is formed into a trumpet shape so that the air blowout port at the upper end of the air nozzle 17 is formed. It is arranged so as to face the suction port 18a of the suction portion 18, and is arranged so as to be wrapped in a side view. An upper end of the suction unit 18 communicates with a transfer pipe 19, and an upper end of the transfer pipe 19 projects above the upper surface of the dry storage bin 48 and communicates with a side surface of the cyclone 20.

The cyclone 20 is adapted to separate grain from paddy while conveying grains downward in a spiral shape.
A branch pipe 22 is disposed below the cyclone 20, and a flow dividing valve 24 is disposed inside the branch pipe 22 so that the flow can be selectively left and right. Then, it is formed into a bifurcated shape and communicates with the charging pipes 23a and 23b. The lower end of the charging pipe 23a extends to the upper surface of the carry-in conveyor 48, and the lower end of the charging pipe 23b extends to the carry-out conveyor 55.
Extends to the upper surface of.

The suction part 18 acts as a venturi tube which gradually reduces the pipe diameter at the upper and lower central portions from the upper and lower end portions to increase the conveying speed of the air flowing through the central thin tube and at the same time lower the pressure. Is something that Therefore, the carrier air at a room temperature and a constant humidity taken out through the air pipe 15 is discharged from the air nozzle 17 as a flow of the suction portion 18
When blown into the inside, the grains can be fed at the same time, the grains can be pressure-fed while being dried upward, and the grains can be fed into the cyclone 20 through the transfer pipe 19. The paddy near the floor is moved to the central outlet by the wind sucked from the air mesh 12. And the cyclone 20
Is a centrifugal separator, in which air accompanied by grains is circulated along the wall surface in the cyclone 19 and only grains are dropped downward while dust is circulated and discharged to the outside.
Then, it can be introduced into the carry-in conveyor 45 or the carry-out conveyor 49 by the flow dividing valve 24 in the branch pipe 22. On-off valves 31, 31, ... Are arranged at appropriate places on the lower surface of the carry-out conveyor 49. Alternatively, the air nozzle 17 may be fixed to an individual blower so that the air to be conveyed is taken out from the blower.

The carry-in conveyor 45, the carry-out conveyor 49, the diversion valve 24, the opening / closing valves 30 and 31, which are configured as described above,
Using the ejector type paddy transporting device E, loading, unloading and rotation work can be performed. That is, in the carry-in work, the received grain is conveyed by using the carry-in conveyor 45, and the open / close valve 30
Is operated to put it in an arbitrary storage and drying bottle 48. For the rotation work, the opening and closing valve 31 is operated to operate the feeding pipe 23.
It is circulated and dried by allowing it to flow to the side a. For carrying-out work, the opening / closing valve 31 is operated to input the injection pipe 23.
The dry paddy in the drying chamber 10 is transported to the cyclone 20 by the ejector type paddy transporting device E so as to flow to the b side, and is transported to the carry-out conveyor 49 by the opening / closing valve 31, and the dry paddy is discharged from the carry-out port 49a. Discharge and store 52
It can be transported to and discharged from the silo 53.

Further, during the carrying-in work and the carrying-out work, a rotation work can be performed in another storage / drying bin 48, and
The grain may be replaced in another storage and drying bottle 48. That is, the open / close valve 31 is transferred to the storage / drying bin 48 on the post-process side while being conveyed forward using the carry-out conveyor 49.
Is operated and charged into another storage and drying bottle 48.
Similarly, to the storage / drying bin 48 on the previous process side, the carry-in conveyor 4
The opening / closing valve 30 is operated to put it in another storage / drying bin 48 while it is being put in the container 5 and conveyed backward. In this way, the rotation operation of transferring the grains to another bottle 48 is enabled, and the uneven drying of the grains and the improvement of the bottle use efficiency by the aggregation of the grains can be performed.

[0016]

With the above-mentioned structure, the following effects can be obtained. As described in claim 1, since the air nozzle and the suction portion are provided at the left, right, front and rear central portions of the storage / drying bin, the grain can be discharged to the outside by the jet flow from the air nozzle, and the grain can be stored in the storage / drying bin. Since it is discharged from the lower central part of the, it is possible to reduce the amount of grains remaining in the storage and drying bottle, and to facilitate maintenance and the like. Moreover, since the jet flow from the air nozzle is dry air, the grain can be dried during transportation.

According to a second aspect of the present invention, a carry-out conveyor and a carry-in conveyor are provided side by side, and either one of the conveyors can be selected by a shunt valve. Therefore, by switching the shunt valve to the carry-in conveyor, rotation is performed. While it can be dried, it can be discharged by switching to the carry-out conveyor, it can be replaced between a plurality of storage and drying bins, and rotation and discharge can be performed at the same time, and work efficiency can be increased. .

According to a third aspect of the present invention, the storage / drying bin is divided into a plurality of drying chambers by the front and rear walls and the partition wall, so that the side walls are common, which is advantageous in terms of space and the construction can be facilitated. . Further, since the air duct is provided below the partition wall, air can be sent to the drying chambers of the two left and right systems, and the structure is simple and economical.

[Brief description of the drawings]

FIG. 1 is a side view partial cross-sectional view in which a plurality of storage / drying bottles are linearly arranged.

FIG. 2 is a cross-sectional view of a storage / drying bottle in which an ejector type paddy transporting device is arranged in each drying chamber.

FIG. 3 is a block diagram showing a process of drying and storing paddy.

FIG. 4 is a cross-sectional view of a row of storage and drying bottles.

FIG. 5 is a side view showing a conventional rotation series.

FIG. 6 is a front sectional view showing a residue in a conventional storage and drying bottle.

[Explanation of symbols]

 E Ejector-type paddy carrier 10 Drying room 12 Air mesh 14 Air duct 17 Air nozzle 18 Suction part 20 Cyclone 25 Partition wall 45 Carry-in conveyor 48 Storage / drying bin 49 Carry-out conveyor

Claims (3)

[Claims] 1. A dry air is introduced into a lower part of a storage and drying bottle, and the dry air is jetted upward from an air nozzle arranged in a lower central part, and a lower part of a suction part is arranged above the air nozzle, and the suction is performed. A storage / drying bottle, characterized in that the upper part of the section is extended to the upper part of the storage / drying bottle, and the stored grains are conveyed upward through a suction section by a jet flow of an air nozzle. 2. A carry-in conveyor and a carry-out conveyor are arranged side by side on an upper part of the storage and drying bin according to claim 1, and a diversion valve is provided above the carry-in conveyor and the carry-out conveyor, and the diversion valve has an end portion of the suction section. The storage / drying bin is characterized in that the grains in the lower part of the storage / drying bin are pressure-fed upward so that the loading of the grain can be switched between the carry-in conveyor and the carry-out conveyor. 3. The storage / drying bin is divided into a plurality of front and rear walls in the front-rear direction, and a partition wall is further provided at the center of the left and right to constitute two left and right rows. 2. The storage and drying bottle according to claim 1, wherein a drying chamber is formed, an air duct is provided below the partition wall, and an air nozzle is projected from the air duct to a lower center of each drying chamber.