JPH071151B2 - Grain drying equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to a grain drying apparatus.

2. Description of the Related Art A grain processing facility such as a rice center (for rice) is known as a grain joint processing facility that collects and drys raw grains such as rice and wheat from farmers, prepares and ships them. These facilities are composed of a cargo receiving section, a drying section, a storage section, a preparation and shipping section, and the like.

Generally, in a rice center, the collected raw rice is individually received by an individual and a shipping port in a cargo receiving section, weighed out, dried, stored, and then hulled in a preparation shipping section to prepare and ship brown rice. In this case, a part of the raw paddy discharged from the cargo receiving section is taken out as sample paddy, dried, test paddy, and test selective selection are performed to calculate the yield (amount of regular brown rice-amount of paddy rice) and the like.

Conventionally, the method of drying this sample paddy is to put the sample paddy into a storage shelf provided in the drying chamber and take out the sample paddy from the drying chamber when the moisture content of the sample paddy reaches an appropriate value after drying for a required time. However, streamlining this drying work,
In order to save labor, it has been proposed to use a test dryer that can mechanically dry the sample paddy.

FIG. 8 is a vertical cross-sectional view showing an example of such a test dryer, in which a test carrier 11 having a drying chamber is provided with a carrying chain 14 for carrying a mesh bag 31 containing sampled rice. The transport chain 14 is stretched between a drive sprocket 23 driven by a drive motor 22 and a plurality of floating sprockets 24.

The sample paddy taken out by the sampler of the load receiving part (not shown) and loaded into the receiving hopper 18 through the sample loader is packed in a fixed amount in a mesh bag 31 and attached to the transport chain 14 by the automatic suspending machine 54. It is suspended by the clip 32, moves in the direction of arrow A in the figure, and continuously or intermittently circulates in the drying chamber 15 along the vertical meandering path of the transport chain 14. An intake port 27 and a heater 28 are provided at the lower part of the machine body, and an exhaust pipe 29 and an exhaust fan 30 are provided at the top of the machine body. A sample is obtained by introducing hot air heated by the heater 28 into the drying chamber 15 and discharging it. The paddy is dried.

In the figure, reference numeral 50 denotes a water content detection mechanism including a water content sensor 51 and chuck arms 52 and 53. The water content detection mechanism 50 detects the water content of the sample paddy in the bag body 31, and the water content falls to a predetermined standard. When this happens, a signal is issued to activate the take-out arms 36, 37 provided on the path of the transport chain 14.

By the operation of the take-out arms 36 and 37, the bag body 31 accommodating the sample paddy is suspended and the clip 32 is opened to open the bag body.
31 is dropped and taken out from the machine through a discharge port 35 provided in the test dryer 11.

Problems to be Solved by the Invention However, in the above-described conventional apparatus for drying a sample grain in a test dryer, a moisture detecting mechanism is required in the test dryer, which complicates the structure of the test dryer and reduces the equipment cost. Is expensive. Also, it often causes a failure.

The present invention is intended to solve the above-mentioned drawbacks of the conventional technique, and an object thereof is to provide a sample grain drying apparatus which does not require a moisture detection mechanism in a test dryer.

Means for Solving the Problems In order to solve the above problems, the sample grain drying apparatus of the present invention is arranged such that a carrier having a grain holder is circulated and movable inside a drying chamber, and the carrier is Test drier provided with a grain supply part and a grain discharge part, a moisture measuring device provided in the preceding step of this test dryer, and a moisture measuring device and a grain discharging part of the test dryer. And a control device connected to the grain discharging device, wherein the control device controls the moisture value of the grain measured by the moisture measuring device and the position of the grain holding body for the grain on the carrier. While storing, the drying time is calculated based on the difference between the grain moisture value and the set moisture value, and after the passage of the drying time, when the grain holder reaches the grain discharge part, the grain Characterized in that it operates an ejector Has a configuration.

Operation In the grain drying apparatus of the present invention configured as described above, when charging the sample grain to the test dryer, the moisture of the raw grain and the grain corresponding to the grain on the carrier of the test dryer are used. Input the position of the holder to the controller,
The drying time required in the test dryer until the set moisture value is reached is calculated and stored, and when the grain holder reaches the grain discharging portion after the drying time has elapsed, the grain discharging device of the test dryer Is operated to discharge the sample grain from the grain holder to the outside.

Example Hereinafter, the configuration of the present invention will be described in more detail with reference to an example shown in the drawings.

FIG. 1 is a block diagram showing an embodiment of the grain drying apparatus of the present invention. The sample grain taken out by the sampler 1 of the load receiving section is sent to the sample loader 2 and then sent from the receiving hopper 18 into the test dryer 11 to be dried. The dried sample grain is discharged from the outlet 26 by the discharging device 3 of the test dryer, passes through the branch valve 4 and the processing device 5
And sent to the sample packaging machine 6. The sample grain sent to the processing device 5 undergoes processing such as test hulling and test selection, and is sent to the sample packaging machine 7.

Then, the water content measuring device 2a is provided in the sample loader 2 in the previous process of charging the sample grain into the test dryer 11, and the water content of the sample grain is detected, and the detected value is the water content measuring device 2a and the test dryer. It is input to the control device 8 connected to the grain discharging device 3 provided in the grain discharging unit 11 of FIG.

In the control device 8, the required drying time of the test dryer, for example, the number of rounds of the grain holder in the test dryer is determined from the set moisture value set by the input value moisture setter 9 and the data such as the drying capacity of the test dryer. The calculated value and the position of the holder for holding the sample grain on the carrier in the test dryer are stored in the storage device 10. These values are sent to the grain discharging device 3 provided in the grain discharging part of the test dryer 11, and the sample grain is transferred to the test dryer 11.
When the sample grains reach the delivery port 26 after the required drying time has elapsed after the charging is started and the drying is started, the discharging device 3 is activated based on the signal of the control device 8 and The sample grain is discharged from the outlet 26.

Fig. 2 shows a test dryer 11. Reference numeral 12 is a cylindrical container having an open upper end for storing sample grains such as paddy that serves as a grain holding body, and its body portion allows air to flow therethrough. Is formed of a screen material such as wire mesh or punch metal.

As shown in FIG. 3, the shaft 13 penetrates the upper center of the container 12 in the up-down direction along the radial direction, and the shaft 13 is provided with the collar 13a on both outer surfaces of the body of the container 12,
The position of the container 12 on the shaft 13 is restricted. The shaft 13 is attached at its end to a carrier constituted by a carrier chain 14 provided in the drying chamber 15 of the test dryer 11 and held horizontally.

A plurality of containers 12 are arranged in series with the transport chain 14 and are provided in the drying chamber 15 of the test dryer 11 so as to be rotatable about the shaft 13 in a reversible manner. Further, a cam follower 16 for reversing the container is provided on the outer surface of the body of the container 12 below the portion through which the shaft 13 penetrates. The cam follower 16 has a roller shape and is pushed up by a pusher described later when the container 12 is inverted.

On the other hand, inside the test dryer 11, a container reversing air cylinder 17 is provided. This container inversion air cylinder 17
Has a lower end swingably supported by a fixing member 19, and a plate-shaped pusher 20 is fixed to the rod end. The upper end of the air cylinder 17 is pivotally attached to the rod end of the other retracting air cylinder 21, and the pusher 20 operates when the rod of the retracting air cylinder 21 is operated in the direction of arrow A in the figure when it is not needed.
It has been evacuated to a position where it does not interfere with the movement of twelve.

In this way, the container inversion air cylinder 17 and pusher 2
0, the evacuation air cylinder 21 constitutes the grain discharging device 3 in the grain discharging part of the test dryer 11, and the grain discharging part is provided so as to face a part of the transport chain 14.

In the drying chamber 15, the transport chain 14 has a drive motor 22
The drive sprocket 23 driven by the sprocket 23 and a plurality of floating sprockets 24 are stretched, and can be circulated in the drying chamber 15.

Further, the grain supply unit is also provided so as to face the transport chain 14, is taken out by the sampler 1 of the load receiving unit (not shown), passes through the sample loader 2 and the receiving hopper 18 of the grain supply unit.
The sample paddy charged in the above is stored in the sample grain container 12 by the chute 18a.

The container 12 containing the sample grains is supported by the transport chain 14 and circulates in the test dryer 11 to dry the grains, and the inside of the test dryer 11 is dried a predetermined number of times according to the initial moisture value. Circulate. Then, after the predetermined time stored in the storage device 10 has passed and the water content of the sample grain has decreased to a predetermined reference, the relevant sample grain container 12 stored in the storage device 10 has reached the grain discharge part. At the same time, the control device 8 operates the retracting air cylinder 21 to move the pusher 20 forward to the operating position.

Then, the container reversing air cylinder 17 is activated to push the pusher.
The pusher 20 is pushed up, the pusher 20 comes into contact with the cam follower 16 of the container 12 from below, and the container 12 rotates around the sfuft 13. FIG. 4 shows this operating condition. The container reversing cylinder 17 and pusher 20 are moved from the retracted position shown by the chain line to the solid line position by the operation of the retracting cylinder 21, and the pusher 20 is used for container reversing. It rises when the air cylinder 17 operates. The container 12 has a first position 12a and a second position 12b.
The cam follower 16 comes into contact with the pusher 20 and is pushed up, and the sample grain stored by being turned around like the third position 12c is discharged.

In front of the position where the sample grains are discharged from the container 12 as described above, the inclined plate 25 is installed with one end thereof being swingably supported by the test dryer 11. Although this inclined plate 25 is in the vertical position 25a when not needed, the grain discharged from the container 12 is moved to the inclined position 25b by an air cylinder, a rotary solenoid or the like in conjunction with the operation of the container reversing air cylinder 17. Received and discharged from the outlet 26 to the outside of the machine.

When the discharge of the grains is completed, the inclined plate 25, the container reversing air cylinder 17, and the pusher 20 are returned to their original positions in the reverse order, and the container 12 is lowered in the state of 12d.

In addition, at the bottom of the test dryer 11, an intake port 27 and a heater 28
However, an exhaust tube 29 and an exhaust fan 30 are provided on the top of the machine body, and the hot air heated by the heater 28 is introduced into and discharged from the drying chamber 15 to dry the sample paddy.

FIG. 5 shows another embodiment of the test dryer.

The test drier 11 is a device in which a certain amount of sample paddy is packed in a net-shaped bag 31 ... and dried in the drying chamber 15. In the drying chamber 15, the drive sprocket 23 and the floating sprocket 24 ... Inside the dryer machine casing 33, and a grain carrier that circulates in the drying chamber 15 by suspending the bags 31 ... through a clip 32 that serves as a grain holder on an endless transport chain 14 that serves as a carrier. In this lower intake port 27
A heater 28 that takes in more hot air, and the transfer chain 14
Exhaust duct 34 that extends in a comb shape along the meandering path of
And an exhaust fan 30 for discharging the air inside the drying chamber 15 from the upper exhaust pipe 29 through the duct 34, and an automatic grain supply unit for suspending a bag body 31 containing sample paddy on the clip 32. And a suspender 54, and the grain supply unit is provided facing the carrier.

Further, the take-out arms 36 and 37, which are the grain discharging device 3 of the grain discharging unit facing the carrier for forcibly opening the clip 32 and discharging it to the delivery port 35, and the drive sprocket 23 are connected to the chain transmission mechanism ( A motor 22 that is rotationally driven via (not shown).
Is provided, and the transport chain 14 is continuously or intermittently driven by a motor 22 to circulate the bag body 31 along a meandering path.

Also, a clip 32 that supports a bag body 31 containing sample paddy
The position on the transport chain 14 of is stored in the storage device 10,
When the bag body 31 reaches the position of the take-out arms 36, 37 after the drying time of the bag body 31, the sample paddy of the bag body 31 is taken out to the delivery port 35 by the signal of the control device 8. I am configuring.

Further, upper and lower sash windows are opened at the upper front and lower parts of the front of the test dryer 11, respectively, and an internal inspection is performed from the upper sash window, and a bag 31 is hung from the clip 32 by a manual operation from the lower sash window. Is configured to do.

Further, an operation panel box is provided on the right side surface of the test dryer 11, and a moisture meter, a thermometer, various operation switch groups, etc. are provided in the box.

As shown in FIG. 7, the clip 32 is supported at the center of a horizontal shaft 38 which is horizontally stretched by the left and right endless transport chains 14, 14 at regular intervals, and sequentially moves in the direction of the solid line arrow in FIG.

As shown in FIG. 6, the take-out arms 36 and 37 have shafts 39 and 37 at their base ends.
40, and each of these shafts 39, 40 is fan-shaped partial gear 4
In addition to interlocking with each other via 1, 42, the shaft 43
The fixed swing arm 45 of the shaft 40 is connected to the tip of the piston rod 44a of the cylinder 44 which is fixedly supported via
When the 44 is extended, the arms 36 and 3 are in the state shown in FIG.
At the same time as 7 is closed, the clips 32 are forcibly opened by the pressing rolls 46, 47 at the tips of the arms 36, 37.

Also, a bag body that drops when the clip 32 is opened.
A discharge guide plate 48 that guides 31 to the outlet 35 is fixedly supported on one of the shafts 40, and the guide plate 48 is rotated counterclockwise in FIG. 6 in conjunction with the closing operation of each arm 36, 37. Is provided.

Also in this embodiment, as shown in FIG. 1, the moisture content measuring device 2a is provided in the sample loader 2 in the previous step of loading the sample grain into the test dryer 11 to detect the moisture content of the sample grain. This detected value is used as the moisture measuring device 2a.
And the grain discharging device 3 provided in the grain discharging part of the test dryer 11 are input to the control device 8. Control device 8
Then, the required drying time in the test dryer 11 is calculated from the set moisture value set by the input value moisture setter 9 and the data such as the drying capacity of the test dryer 11, and the value and the carrier in the test dryer 11 are calculated. The position of the grain holder that holds the sample grain above is stored in the storage device 10. These values are sent to the grain discharging device 3 provided in the grain discharging part of the test dryer 11, and the required drying time has elapsed after the sample grain was charged into the test dryer 11 and the drying was started, When the grain holder reaches the grain discharging portion, the discharging device 3 operates based on the signal from the control device 8 and the sample grain is discharged from the outlet 26.

EFFECTS OF THE INVENTION As is clear from the above description, by using the grain drying apparatus of the present invention, it is not necessary to provide a moisture detecting mechanism or the like in the test dryer, the facility cost is reduced, and the breakdown is reduced.

In addition, the grain supplied from the grain supply unit is conveyed while being dried while being held by the grain holder of the carrier in the drying chamber, and the moisture value and the finish measured by the moisture measuring device in the previous step of the test dryer. The storage device that stores the drying time by comparing with the moisture value and the position of the grain holder on the carrier in the test dryer of the grain is read, and the time when the grain becomes the finished moisture value is reached. When the grain discharge part of the test dryer is reached, the grain discharge device is activated by the command of the control device to discharge the grain, and the prescribed water content for each grain type is maintained without any manual labor. Value can be dry grain.

It is needless to say that the test dryer used in the present invention is not limited to the type shown in the above-mentioned embodiment, and may be any other type.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the grain drying apparatus of the present invention, and FIG. 2 is a schematic sectional view of the above test dryer,
FIG. 3 is a partial perspective view of FIG. 2, FIG. 4 is a front view showing the operation of the same, FIG. 5 is a schematic sectional view of a test dryer of another embodiment, and FIG. 6 is of FIG. FIG. 7 is a partial cross-sectional view of an enlarged side view of FIG. 5, and FIG. 8 is a cross-sectional view of a conventional test dryer. 2a: Moisture measuring device, 3: Ejecting device, 8: Control device, 9: Moisture setting device, 10: Storage device, 11: Test dryer, 12: Sample grain container, 14: Ejection chain, 15: Drying room, 18: receiving hopper.

Claims (1)

[Claims] 1. A test drier in which a carrier having a grain holder is disposed in a drying chamber so as to be able to circulate, and a grain supply unit and a grain discharge unit are provided facing the carrier, A moisture measuring device provided in the previous step of the test dryer, and a controller connected to the moisture measuring device and the grain discharging device provided in the grain discharging part of the test dryer, and the control device is While storing the grain moisture value measured by the moisture measuring device and the position of the grain holder for the grain on the carrier, the drying time is based on the difference between the grain moisture value and the set moisture value. Is calculated, when the grain holder reaches the grain discharge part after the drying time,
A grain drying device, which operates the grain discharging device.