JPH0599567A - Grain discharge control system in grain dryer - Google Patents

Abstract

PURPOSE:To facilitate clogging removal of grains clogging in an apparatus for carrying and discharging dried grains by dividing dried grains in a grain cooling device constituting a grain drier and dried grains in a hot-air grain drying device and separately discharging them. CONSTITUTION:When there are discharged dried grains double dried through a grain cooling device 1 and a hot-air grain drying device 2 in a grain dryer 3, an opening/closing valve 15 of the cooling device 1 is first closed and grains in a drying/storing chamber 21 in the hot-air grain drying device 2 are delivered through a grain drying chamber 25 and from a valve 26. The grains are transferred and discharged from a dried grain collecting flume 30 by a transfer spiral blade 29. As a result, when a dried residual sensor 28 detects that no grains are existent in the grain drying chamber 25, the opening/closing valve 15 is opened. Successively, grains in a cold discharge storing chamber 10 in the cold discharge device 1 are dropped and discharged into the drying storing chamber 21 through a cooling and grain-collecting flume 12. Successively, grains are delivered from the delivery valve 26, and transferred and discharged.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grain discharge control system for a grain dryer.

[0002]

2. Description of the Related Art Conventionally, in a grain dryer provided with a cooling device for cooling the grain and a hot air drying device for drying the grain with hot air, the cooling device is used to cool the grain. It is a configuration of single setting with hot air drying with a hot air drying device and single drying, or double setting with hot air drying by circulating both the cooling device and the hot air drying device, and double drying. When the dried dried grains are discharged, the dried grains in the cooling device are sequentially dropped into the hot air drying device on the lower side, and the dried grains in the hot air drying device are sequentially discharged. It was a system in which dried grains were discharged to the outside or to a discharge transfer device and the like, and dried grains in the cooling device and the hot air drying device were continuously discharged.

[0003]

When double drying is set in the grain dryer, and raw rice is put into both the cooling device and the hot air drying device of the dryer, and the drying is started, Grains are fed from the cooling device to the hot air drying device and are supplied to the grain submersion machine. The grains are conveyed to the upper part of the grain submersion device and supplied to the cooling device while the circulation is repeated, while the hot air drying is performed. The grain flowing down in the apparatus is exposed to hot air and dried.

The dried grains flow down the hot air drying device from the cooling device and are supplied to the sublimation machine, and are conveyed to the upper part by the sublimation machine. Although it is discharged to the outside of the machine or discharged to the discharge transfer device, etc., the dried grains in the cooling device and the dried grains in the hot air drying device should be divided and discharged separately. When the grain is discharged, for example, even if the grain raising machine or the flow-down cylinder is clogged with the grain, the clogging can be easily eliminated.

[0005]

According to the present invention, a cooling device 1 for cooling the grains is provided in the upper part, and a hot air drying device 2 for drying the grains in the hot air is provided in the lower part, and the cooling device 1 is used. Single drying in which the grains are allowed to cool and the hot air drying device 2 circulates the grains for hot air drying, and double drying in which the grains are circulated to both the cooling device 1 and the hot air drying device 2 In the grain drying machine for drying, when discharging the dried grain dried by double drying, the opening / closing means between the cooling device 1 and the hot air drying device 2 is put in a grain flow shut-off state. Grain discharge in the hot air drying device 2 is performed every time, and after this is finished, the opening / closing means is opened to perform discharge control so as to discharge the grain in the cooling device 1. The system configuration.

[0006]

[Advantage of the Invention] When the grain dryer is set to double drying,
When raw rice is put into both the cooling device 1 and the hot-air drying device 2 of the dryer and the drying is started, the grains flow down from the cooling device 1 to the hot-air drying device 2 to rise. Supplied to the grain machine,
While repeating the circulation of being conveyed to the upper part by the grain raising machine and being supplied to the cooling device 1, the grains flowing down in the hot air drying device 2 are exposed to hot air and dried.

At the time of discharging the dried grains, the dried grains in the cooling device 1 are prevented from falling and discharged from the cooling device 1 into the hot air drying device 2 on the lower side. The cooling device 1 has a lower opening / closing means controlled to a closed state, and the hot air drying device 2
The dried grains in the inside flow down and are supplied to the sublimation machine, are conveyed to the upper part by this sublimation machine, and are discharged from the sublimation machine through a falling pipe or the like to the outside of the machine, or a discharge transfer device. Etc.,
When it is detected that the dried grains in the hot air drying device 2 have been discharged, the opening / closing means at the lower part of the cooling device 1 is controlled to an open state, and the dried grains in the cooling device 1 are controlled. Are dropped into the hot-air drying device 2 and discharged, flow down in the hot-air drying device 2 and are supplied to the grain submersion machine, and are conveyed to the upper part by the grain submersion machine. After that, it is discharged to the outside of the machine or discharged to the discharge transfer device or the like.

[0008]

According to the present invention, the dried grains in the cooling device 1 and the dried grains in the hot-air drying device 2 are divided and discharged separately to convey the dried grains. Even when this grain is clogged in the sublimation machine, the downflow cylinder, etc., which is then discharged, the grain can be easily removed from the grain.

[0009]

EXAMPLE In the illustrated example, a plurality of grain dryers 3 each having a cooling device 1 for cooling the grains at the top and a hot air drying device 2 for drying the grains at the bottom in a stacked state are provided. A hulling machine (not shown) is passed through a feeding transfer device that transfers and hangs the grains to each of the dryers 3, and a discharge transfer device that discharges and transfers the dried grains from each of the dryers 3. ) To be hulled and hulled, and the grain processing device 5 is composed of a central controller (not shown) for controlling each of the dryers 3, the stake-in / out transfer device, the hulling machine and the like. ..

The cooling device 1 and the hot-air drying device 2 of the dryer 3 have a rectangular shape which is long in the front-rear direction, and the cooling device 1 on the upper part of the machine wall 6 is rotatable with a cooling transfer spiral 7 on the upper part. The cooling air transfer trough 8 and the cooling air ceiling plate 9 installed inside are provided, and the cooling air storage chamber 10 for storing grains is formed below the cooling air ceiling plate 9 and the cooling air storage chamber 10 is provided. A cooling full amount sensor 11 for detecting the full amount of grains is provided on the upper portion.

Below the cold storage chamber 10, there are provided free-cooling grain collecting gutters 12 and 12 communicating with the free-cooling storage chamber 10, and the free-standing cold-collecting gutter 12 rotatably collects the cold-collecting gutter 12. Grain transfer spiral 13
Is installed inside, and rhombus-shaped guide plates 14, 14 are provided on the upper side of the cold-collecting gutters 12, 12.
On the lower side of the chilled grain collecting troughs 12, 12, opening / closing valves 15, 15 of opening / closing means are provided so as to be openable / closable, and the opening / closing valves 15, 15 are opened / closed by forward / reverse rotation of opening / closing valve motors 16, 16. Yes, 17 and 17 are open / close valve sensors for detecting the open state of the open / close valves 15 and 15. The open / close valves 15 and 15 open the grains in the cold-collecting gutters 12 and 12 to the lower side. It is configured such that it is dropped and supplied into the hot air drying device 2 of FIG.
The grains in 2 and 12 are laterally transferred, and the cold-collection gutters 12 and 12 are provided with the residual cooling amount sensors 18 and 18 for detecting the presence or absence of grains.

A dry transfer gutter 20 in which a dry transfer spiral 19 is rotatably mounted is provided in the central portion between the cold-collected gutters 12, 12. A drying storage chamber 21 of the hot air drying device 2 is formed below the drying transfer gutter 20.
A dry full amount sensor 22 for detecting the full amount of grains is provided above the dry storage chamber 21.
1 On the lower side, four grain drying chambers 25 are provided between each of the three air exhaust chambers 23 on the left and right sides and the central portion and the air blowing chambers 24, 24 on the left and right sides. At the lower part of the drying chamber 25, each feeding valve 26 for feeding and flowing down the grains is rotatably supported, and each feeding valve 26 is rotationally driven by a feeding valve motor 27. Dry remaining amount sensor 2 for detecting the presence of grains inside
8, 28 is provided.

A dry grain collecting trough 30 having a dry grain collecting transfer spiral 29 rotatably mounted therein is connected to the lower side of each of the drying chambers 25. On the front side of the machine wall 6, a blower passage chamber 31 is formed which can communicate with the blower chambers 24, 24, and a burner case 33 having a burner 32 therein is detachably attached to the blower passage chamber 31. A dryer operating device 34 for starting and stopping the dryer 3 is detachably provided on the outer surface of the machine wall 6.

On the rear side of the machine wall 6, each of the exhaust chambers 23
An exhaust passage chamber 35 that can communicate with the exhaust passage chamber 35 is formed.
An exhaust fan 37 is provided on the central rear side exhaust fan 36, and an exhaust fan motor 38 'for rotationally driving the exhaust fan 37 is provided. At the central portion of the bottom plates of the cooling / drying transfer gutters 8 and 20 in the front-rear direction, supply ports for supplying the transfer grains to the cooling storage chamber 10 and the drying storage chamber 21 are provided. On the side, cooling / drying diffusion plates 38, 39 are rotatably provided.

The grain raising machine 40 is provided on the outside of the rear side of the machine wall 6 and has a belt with a bucket conveyor 41 stretched inside, and an upper end portion is provided with an ejecting cylinder 42. The one side of the cylinder 42 and the starting end of the cooling transfer gutter 8 are communicated with each other,
The other side has a structure in which the starting end portion of the dry transfer gutter 20 is communicated via a flow-down cylinder 43, and a paddy flow for detecting grains passing through the discharge cylinder 42 is provided in the discharge cylinder 42. A sensor 44 is provided, and a dispensing switching valve 45 is provided so as to be openable and closable. The dispensing switching valve 45 is opened and closed by forward and reverse rotations of a dispensing motor 46. The grain from the grain raising machine 40 is supplied to the cooling transfer gutter 8 and is also supplied to the dry transfer gutter 20 in a closed state, and the lower end portion is the end part of the dry grain collection gutter 30. Is a structure in which a supply gutter 47 is provided between them, and 48 is a structure in which each sublimation machine motor is rotationally driven by the sublimation machine motor 48, and 49 is the projecting machine. A configuration is provided in which a dispensing switching valve sensor that detects the open state of the switching valve 45 is provided.

The sublimation machine 40 receives a grain falling while it is being conveyed to the upper portion by the bucket conveyor 41, crushes the grain by pressure, and at the same time, detects a moisture content of the crushed grain. Is provided, and each unit of the moisture sensor 50 is configured to be rotationally driven by the moisture motor 51. Grain drying in the dryer 3 is configured to perform either single drying or double drying. Single drying is performed while the grains circulate in the hot air drying device 2.
Double drying is performed by being exposed to hot air and being dried by being exposed to hot air while the grains circulate from both inside the cooling device 1 and inside the hot air drying device 2. There is.

When both the drying of the grains in the dryer 3 and the cooling of the grains are simultaneously performed, the grains are allowed to cool in the cooling device 1 in a stationary state, and the grains in the hot air drying device 2 are also cooled. While the grains are circulating, the grains are exposed to hot air and dried. Grain cooling in the dryer 3 is performed by cooling the grain in the cooling device 1 in a stationary state, or by cooling both grains in the hot air drying device 2 from inside the cooling device 1. While circulating, one of the two is allowed to cool.

If the grain is clogged in the flow-down cylinder 43 while the double-dried grain is being discharged, the flow-down cylinder 4
The clogging is expanded from 3 to the grain raising machine 40, and the throwing-out switching valve 45 is switched to supply dried grains to the cooling transfer trough 8 to move the inside of the dryer 3. When the control is made to circulate, when clogging occurs in the cooling transfer gutter 8, clogging is expanded from the cooling transfer gutter 8 to the grain raising machine 40. In order to eliminate these, the control described below is performed. As described above, as in the present invention, the dried grains in the cooling device 1 and the dried grains in the hot air drying device 2 are divided and separately discharged and controlled. The granules can be supplied into the hot air drying device 2.

The operating device 34 has a box shape, and each start switch 52 for starting and operating the cooling device 1 on the surface plate of this box for each work of inserting, ventilating, moving and discharging. A stop switch 53, each start switch 54 for starting the hot-air drying device 2 for each work of loading, drying, moving and discharging, a stop switch 55 for stopping operation, a buzzer stop, and a monitor lamp for turning off. Buzzer stop switch, timer increase switch for increasing / decreasing the set time of the timer, timer decrease switch, as well as a manual measurement switch operated at the time of manual measurement with the moisture sensor 50, set temperature operated at the time of calling the set temperature A switch and a reservation switch, etc. are provided, and a tank setting picker 56 for setting single drying or double drying, a moisture setting for setting a finishing target moisture of grain 57, a grain type setting drag 58 for setting the hot air temperature generated from the burner 32, a swelling amount setting drag 59, and a moisture correction drag for correcting the detected moisture value, which is generated from the burner 32. A hot air temperature switching blade that changes the level of hot air temperature, a drying speed switching blade that changes the drying speed level of grains, an initial drying time setting blade that sets initial drying time and two-stage drying, and a pause time Set the rest time setting, single drying, system drying, or inspection.In addition, when system drying, there is a system setting sweep to set the machine, and single drying or double drying is set. The monitor lamp to display, the cooling device 1
Further, the monitor lamp for displaying the operation-specific display and abnormality display of the hot air drying device 2 is provided, and the display section 60 for digitally displaying a message display and various displays of the content of the abnormality is provided.

In the operating device 34, the operation of the start switch 54 operated at the time of inputting the detection of the remaining dry amount sensor 28 and the paddy flow sensor 44 and the start of the discharging operation and single drying or double drying. The operation of the tank setting knob 56 to be operated when setting
A discharge control means control device 62 including a PU 61 and the like is provided, and the CPU 61 is configured to input detection of other sensors and operations of switches and setting knobs. The opening / closing valve motor 16 for controlling opening / closing of the motor is rotationally controlled, and the other motors are rotationally controlled.

The control of discharge of dried grains by the control device 62 is performed as follows. That is, when the operation of the tank setting lever 56 is operated to the double drying position and the start switch 54 of the hot air drying device 2 is operated to start the discharging operation, these operations are performed by the CPU 6
1, the discharge operation of the dried grain double-dried by the cooling device 1 of the dryer 3 and the hot air drying device 2 is started by this input (step 101), and the opening / closing valve 15 is turned on. It is controlled to be in the closed state (step 102), the exhaust fan 37 is started (step 103), the transport system necessary for the discharging work is started (step 104), and the feeding valve is started to operate the inside of the hot air drying device 2. The grains are discharged (step 104 '), and the dry remaining amount sensor 28 detects the presence or absence of grains in the hot air drying device 2 (step 1).
05), when the dry remaining amount sensor 28 is detecting a grain, the dry remaining amount sensor 28 is in the ON state,
In the N state, it is detected that the grain is being discharged (step 106), and when the dry remaining amount sensor 28 detects that there is no grain, the dry remaining amount sensor 28 is in the OFF state and the It is detected that the discharge of the grains in the hot air drying device 2 is completed, the on-off valve 15 is controlled to the open state (step 107), and the grains in the cooling device 1 fall into the hot air drying device 2. The grains that have been discharged and discharged into the hot air drying device 2 are discharged, and the flow of the grains being discharged is detected by the paddy flow sensor 44 (step 108), and the paddy flow sensor 44 detects the grains. If it is being detected, the paddy flow sensor 44 is in the ON state, and if it is in the ON state, it is detected that the grain is being discharged (step 109). When the flow is no longer detected, the paddy flow sensor 44 Turned OFF, this OFF state is detected and the discharge of the grains has been completed, the dryer 3
Is controlled to be stopped (step 110).

In addition, the control device 62 has the following functions. That is, when the moisture sensor 50 detects the same grain moisture as the finishing target moisture set by operating the moisture setting knob 57, it is detected that the drying of the grain has ended.
Also, the grain type setting knob 58 and the swelling amount setting knob 59
Both the amount of combustion fuel and the amount of combustion air supplied to the burner 32 are controlled so that the grain temperature is the same as the hot air temperature generated from the burner 32 set by operating and.

The operation of the above embodiment will be described below. When discharging the dried grain that has been housed in both the cooling device 1 and the hot air drying device 2 of the grain dryer 3 and has been double dried, the tank setting scoop 56 of the operating device 34.
By operating the start switch 54 for starting the discharging operation of the hot air drying device 2,
At the same time as the place required to perform the discharging operation of the dryer 3 is started, the on-off valve 15 of the cooling device 1 is controlled to the closed state, and the grains in the dry storage chamber 21 of the hot air drying device 2 are ,
The grain drying chamber 25 is fed from the drying storage chamber 21 to the valve 2
At 6 it is fed to the lower part and flows down, and from the dry grain collecting gutter 30 through the supply gutter 47 into the grain raising machine 40 the dry grain collecting transfer spiral 29.
Is transported and supplied to the upper part by the bucket conveyor 41 and discharged directly to the outside of the machine through the ejection cylinder 42 and the falling cylinder 43, or discharged to the discharge transfer device and transferred to the outside of the machine by this discharge transfer device. Is discharged.

During the discharging, when the dry remaining amount sensor 28 provided in the grain drying chamber 25 detects that there are no more grains in the drying chamber 25, the grains in the hot air drying device 2 are discharged. It is detected that the cooling is completed, the open / close valve 15 is controlled to be in an open state by the detection, and the grains in the cooling storage chamber 10 of the cooling device 1 are cooled from the cooling storage chamber 10 by the cooling collection gutter 12. The grains that have been dropped and discharged into the dry storage chamber 21 of the hot air drying device 2 and discharged into the dry storage chamber 21 in the same manner as described above move from the dry storage chamber 21 to the dry chamber 25. It is fed to the lower part by the feeding valve 26 and flows down, and is transferred and fed from the dry grain collecting trough 30 through the supply gutter 47 into the grain raising machine 40 by the dry grain collecting transfer spiral 29, and the bucket conveyor 41. Is conveyed to the upper part by the ejection cylinder 42 and the falling cylinder 4
It is directly discharged to the outside of the machine via 3 or discharged to the discharge transfer device, transferred by this discharge transfer device and discharged to the outside of the machine.

During this discharge, when the paddy flow sensor 44 detects that the grain no longer passes through the throw-out cylinder 42, it is determined that the discharge of the grain in the dryer 3 is completed, and the operation device 34 of the operating device 34 It is automatically controlled by the controller 62, the dryer 3 is automatically stopped, and the discharge of the grain is completed.

[Brief description of drawings]

 The figure shows an embodiment of the invention.

FIG. 1 is a block diagram.

FIG. 2 is a flowchart.

[Fig. 3] Action diagram

FIG. 4 is an overall side view of a grain processing device.

5 is an enlarged sectional view taken along line AA of FIG.

FIG. 6 is an enlarged side perspective view of a part of the grain dryer.

FIG. 7 is an enlarged front view of a part of the grain dryer.

[Explanation of symbols]

 1 Cooling device 2 Hot air drying device

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shinji Ninomiya, 1 Yakura, Tobe-cho, Iyo-gun, Ehime Prefecture, Engineering Department, Iseki Agricultural Machinery Co., Ltd. Department

Claims (1)

[Claims] 1. A cooling device (1) for cooling the grains is provided on the upper part, and a hot air drying device (2) for drying the grains with hot air is provided on the lower part. In a grain dryer that performs single drying in which the grains are circulated in the drying device 2 to dry in hot air and double drying in which the grains are circulated to both the cooling device 1 and the hot air drying device 2 to dry in hot air When discharging the dried grain dried by double-drying, the opening / closing means between the cooling device 1 and the hot air drying device 2 is placed in a grain flow shut-off state so that the inside of the hot air drying device 2 is closed. A grain discharge control method characterized in that the grain discharge is performed, and after the end of the discharge, the opening / closing means is opened to discharge the grain in the cooling device 1.