JP2007078316A - Grain drying equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make out a discharge amount in real time when grain is discharged after drying, and improve work efficiency after discharge. <P>SOLUTION: The grain is circulated and dried. At a time point of reaching a predetermined moisture value, the discharge amount is displayed on a display part 104 in synchronization with discharge operation when the grain is discharged from a grain tank 14. By displaying the grain discharge amount on the display part 104, an operator does not need to perform operation for weighing after the discharge or the like, and operation efficiency after the drying is improved. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention comprises drying means for circulating grains through a circulation path and drying the circulating grains by exposing them to a heated atmosphere. The present invention relates to a grain drying device to be discharged.

  In the grain dryer, drying is promoted by supplying hot air with grains accumulated in the drying chamber. In addition, in order to avoid uneven drying, a circulation path is provided at the bottom of the drying chamber to collect a certain amount of accumulated grains, transport the collected grains to the top of the drying chamber, and send them again to the drying chamber. ing. Grain circulates through this circulation path, so that the grain in the drying chamber can be uniformly dried (see Patent Document 1).

  In addition, the grain dryer sets the moisture content of the grain at the end of drying before the start of drying, and periodically measures the moisture content by sampling the grain with a moisture content measuring device. Drying is terminated when the moisture content reaches (below) the set value. This moisture content measuring device is provided in the middle of the circulation path and samples grains.

  By the way, the grain that has been dried needs to be discharged out of the apparatus from the drying chamber. For this reason, a branch point between a guide path (first guide path) for guiding to the upper part of the drying chamber and a guide path (second guide path) for discharging outside the apparatus is provided in the middle of the circulation path. The switching valve provided at the branch point is switched between circulation and discharge.

When the second guide path communicates with the upstream circulation path by the switching valve, the grain is discharged out of the apparatus.
JP 2001-241845 A

  However, in the conventional grain drying apparatus, when drying is completed and the grain is discharged, there is no means for recognizing the discharge amount, and the operator has only to visually check the discharge state from the discharge port.

  In addition, the amount of discharged waste is determined by sending the discharged grain into a quantitative bag or a quantitative storage tank and looking at its indicators (known amount when full, storage level line, etc.). It was difficult to recognize. For this reason, it took time to grasp the discharge amount, and the work efficiency after discharge was lowered.

  An object of the present invention is to obtain a grain drying apparatus that can recognize the discharge amount in real time when discharging the grain after drying, and can improve the workability after discharging in consideration of the above fact.

  The invention according to claim 1 is provided with a drying means that circulates the cereals through a circulation path and exposes the circulated cereals to a heated atmosphere, and circulates the cereals after drying. A grain drying device that discharges a fixed amount from a road, and is characterized by notifying a discharge amount obtained from the number of discharges from the circulation path or information related to the discharge amount.

  According to the first aspect of the invention, attention is paid to the fact that the dried grains are discharged by a fixed amount, and the discharge amount is calculated based on the number of discharges (discharge number × fixed amount).

  By notifying the calculated discharge amount or information related to the discharge amount, the labor for measuring the amount of grain after discharge can be saved, and the work efficiency can be improved.

  The invention according to claim 2 is a drying chamber that accelerates drying by exposing to an atmosphere in which grains are accumulated and heated, a quantitative recovery means for taking out a predetermined amount of grains deposited in the drying chamber from the lower layer side, and quantitative recovery A conveying means for conveying the grains recovered by the means to the upper layer of the drying chamber; and a sending means for sending the grains conveyed by the conveying means to the upper layer of the grains accumulated in the drying chamber, and circulating the grains And a switching means for guiding the grain conveyed by the conveying means to either the first guide path for guiding the grain to the delivery means or the second guide path for discharging the grain out of the apparatus. A grain drying apparatus, which is activated when the switching valve is switched to the second guide path and counts the number of times of collection by the quantitative recovery means, and the count by the counting means And a discharge amount calculation means for calculating a grain discharge amount based on a known collection amount by the quantitative recovery means, and a discharge amount or discharge amount calculated by the discharge amount calculation means. Reporting means for reporting at least one of the information to be performed.

  According to the invention described in claim 2, the counting means is activated when the switching valve is switched to the second guide path. Generally, when grain drying in the drying chamber is completed, the switching valve is switched from the first guide path side to the second guide path side.

  Here, the grains recovered by the quantitative recovery means and transported by the transport means are guided from the circulation path to the second guide path and discharged out of the apparatus.

  Here, the counting means counts the number of times of collection by the quantitative recovery means. Further, the discharge amount calculating means calculates the grain discharge amount based on the count value obtained by the counting means and a single collection amount obtained by the quantitative collection means that is known in advance. That is, the grain discharge amount can be obtained by multiplying the count value and the amount collected once.

  Note that, in principle, the calculation is not the multiplication of the count value and the collection amount of one time but the addition of the collection amount of one time for each count.

  The notification means notifies at least one of the discharge amount calculated by the discharge amount calculation means or the information related to the discharge amount. Thereby, the operator can confirm the discharge state of the grain by confirming the notified discharge amount or the information related to the discharge amount, and can omit the check operation of the discharge amount in the subsequent process. . For this reason, the work efficiency after grain discharge can be improved.

  The invention according to claim 3 is the invention according to claim 1 or 2, wherein the discharge amount is discharge weight, and the information related to the discharge amount includes discharge volume, number of discharged particles, discharge It is characterized by including completion information and information on reaching a preset discharge amount.

  According to the third aspect of the present invention, the amount of cereal discharged is generally expressed in terms of discharged weight, but the contents to be notified are not limited to this discharged weight, but the volume of discharged cereal and the number of discharged cereals. , Discharge completion information, and information on reaching a preset discharge amount. That is, if the discharge weight is notified, it can be used for so-called almighty (conversion, etc.). For example, when it is desired to stop the discharge at a desired discharge amount, a buzzer, a lamp, etc. when the discharge amount is reached or approximated. You may make it alert | report by.

  As described above, the present invention has an excellent effect that the discharged amount can be recognized in real time when the dried grain is discharged, and the workability after discharging can be improved.

  As shown in FIGS. 1 to 3, the circulating grain drying apparatus 10 according to the present embodiment includes a grain tank 14 in an upper inner cave and a drying unit in a lower inner cave of a box-shaped machine body 12 that is vertically long and long in the front and rear direction. 16 is provided.

  As shown in FIG. 3, the drying section 16 is formed with a flow-down path 18 partitioned by porous plate-like partition walls 15, 21, so that the grains in the grain tank 14 flow down. An air guide path 20 is formed inside the adjacent downflow path 18, and an air exhaust path 22 is formed outside. A burner 24 (see FIG. 2) is connected to the air guide path 20, and a suction exhaust fan 27 (see FIG. 2) is connected to the air exhaust path 22. For this reason, the hot air generated by the burner 24 is sent to the air guide path 20 and flows from the air guide path 20 through the downflow path 18 to the air exhaust path 22. Therefore, the grain in the downflow path 18 is dried by the hot air. As shown in FIG. 2, a temperature sensor 46 is disposed in the vicinity of the burner 24. The temperature sensor 46 detects the temperature of hot air sent from the burner 24.

  As shown in FIG. 2, a shutter drum 30 that is reciprocally rotated by a motor 28 is disposed at the lower end opening of the flow path 18, and the dried grain that has passed through the flow path 18 is disposed below the shutter drum 30. It is fed to the harvesting unit 31. The side of the harvesting unit 31 is provided with a tensioning port 29 (see FIG. 3) for tensioning the grain into the machine.

  In addition, a lower screw conveyor 34 driven by a synchronous motor 32 is disposed at the lower part of the harvesting unit 31, and the grain fed by the shutter drum 30 is conveyed to the front side of the machine body 12. A bucket conveyor 36 is erected on the front side of the machine body 12.

  The bucket conveyor 36 includes an endless conveyor 39 driven by a synchronous motor 38 and a grain conveying bucket 41 attached to the endless conveyor 39. The bucket conveyor 36 conveys the grain fed from the lower screw conveyor 34 to the uppermost part of the machine body 12. One end of the upper screw conveyor 40 corresponds to the upper end portion of the bucket conveyor 36, and a rotary equalizing machine 42 is connected to the other end of the upper screw conveyor 40.

  The upper screw conveyor 40 and the rotary type leveling machine 42 are driven by a synchronous motor 38 together with the bucket conveyor 36 so that the grains lifted and conveyed by the bucket conveyor 36 are diffused and distributed to the grain tank 14 of the machine body 12.

  A switching valve 100 (see FIG. 2) is provided on the upper portion of the bucket conveyor 36. The switching valve 100 has a first position for guiding grains conveyed by the bucket conveyor 36 to the upper screw conveyor 40, which is a first guide path, by driving a switching valve motor 102 (see FIG. 4), and It can be switched to the second position for guiding to the guide path including the grain outlet 13 as the second guide path.

  That is, a circulation path can be formed by guiding the grain to the upper screw conveyor 40 during drying, and a discharge path can be formed by guiding the grain to the grain discharge port 13 after the drying.

  When the grain is discharged, the shutter drum 30, the lower screw conveyor 34, and the bucket conveyor 36 are driven as in the drying.

  Also, a moisture sensor 44 for detecting the moisture value of the grain is disposed at the lower part of the bucket conveyor 36, and a part of the grain that has been scooped up when the grain conveying bucket 41 of the bucket conveyor 36 is reversed is contained inside. To flow into.

  As shown in FIG. 2, an operation unit 60 for operating the circulation type grain drying device 10 is provided on the right side surface (the front surface of the device) of the machine body 12, and is disposed on the back side of the operation unit 60. It serves as a user interface with the control circuit 48.

  As shown in FIG. 4, the operation unit 60 includes a power switch 50 for supplying power to the circulating grain drying apparatus 10, a tension operation switch 52 for performing a tension operation described later, and a drying operation. A drying operation switch 54, a discharge operation switch 56 for performing a discharge operation, a stop switch 58 for stopping each operation, and an operation dial (not shown) for setting various operation conditions are provided.

  Further, the control circuit 48 disposed inside the machine body 12 includes a microcomputer 48A. The microcomputer 48A includes a CPU 64, a RAM 66, a ROM 62, and an input / output (I / O) port 70 connected by a bus 68 so that information can be exchanged between them. Each switch of the operation unit 60 is connected to an input / output (I / O) port 70 so that a signal can be transmitted to the microcomputer 48A. Further, the ROM 62 stores an operation program for each device of the circulating grain drying apparatus 10 including a processing routine for controlling the grain conveyance speed and the like, which will be described later.

  Further, the burner 24, the suction blower 27, the motor 28, the synchronous motors 32 and 38, the moisture sensor 44, and the temperature sensor 46 are connected to the microcomputer 48A via an input / output (I / O) port 70. At the same time, an AC power supply 51 is connected via the power switch 50, and an AC power having a predetermined voltage (for example, 100V or 200V) and a predetermined frequency (for example, 50Hz or 60Hz) is supplied from the AC power supply 51. ing. Accordingly, the operation of the burner 24, the suction fan 27, the shutter drum 30, the lower screw conveyor 34, the bucket conveyor 36, the upper screw conveyor 40, and the like can be operated by the switches of the operation unit 60.

  Here, in the circulation type drying apparatus 10 of this Embodiment, the function which alert | reports the discharge | emission amount of the said grain in the case of the grain discharge from the grain discharge port 13 was provided.

  That is, the operation unit 60 is provided with a display unit 104. The display unit 104 is connected to the I / O port 70 of the microcomputer 48A through the display driver 106. For example, the hot air set temperature during drying operation, the grain temperature during drying, and the moisture value (water content) are set. Information such as value, moisture value (moisture content) measurement value, etc. is displayed.

  In the present embodiment, a display of grain discharge is added to the display item of the display unit 104.

  FIG. 5 is a block diagram functionally showing a control program for displaying grain discharge processed by the CPU 64 of the microcomputer 48A, and does not specify a hardware configuration.

  When the discharge operation switch 56 is operated, a discharge instruction signal is sent to the switching control unit 110 from the drying execution control unit 108 that controls the main control in the CPU 64.

  The switching control unit 110 is connected to the motor driver 112, the number counter 114, the unit discharge amount reading unit 116, and the count execution unit 118.

  When the switching instruction signal is input from the switching control unit 110, the motor driver 112 drives the switching valve motor 102 to operate the switching valve 100 (see FIG. 2), and the grain discharge port 13 from the upper screw conveyor 40. Form a guideway to

  In addition, a discharge start signal is sent from the switching control unit 110 to the number counter 114, whereby the count value of the number counter 114 is reset to be in an initial state.

  The number counter 114 is connected to the discharge amount calculation unit 120. The number counter 114 sends a count signal to the discharge amount calculation unit 120 every time it is counted up. Water content information (that is, water content information at the end of drying) is input to the discharge amount calculation unit 120 from the drying execution control unit 108. This moisture content is applied as correction data when calculating the amount (weight) of cereals (described later).

  Further, a read instruction signal is sent from the switching control unit 110 to the unit discharge amount reading unit 116, whereby the read instruction signal 116 reads unit discharge amount data from the unit discharge amount memory 122, and the unit discharge amount data. Is sent to the discharge amount calculation unit 120.

  Here, the unit discharge amount is the amount of grain collected from the flow down path 18 when the shutter drum 30 operates once, and depends on the volume of the shutter drum 30.

  As shown in FIG. 6, the shutter drum 30 repeats reciprocating rotation by 360 ° so that the openings alternately oppose the left and right flow paths 18 (360 ° rotation in the direction of solid arrows in FIG. 6). And repetition of 360 ° rotation in the direction of the chain line arrow).

  The initial state of the shutter drum 30 is an empty state, and the opening is closed and stopped at a position directly above.

  In the first rotation, the shutter drum 30 rotates slowly in the clockwise direction in FIG. 6, and the opening returns to the position directly above and stops. In this rotation, when the opening faces the downflow passage 18 on the right side, the grain flows into the shutter drum 30 and is filled and collected.

  When the opening begins to open through the right flow path 18 on the right side, the grains in the shutter drum 30 gradually begin to be discharged to the lower screw conveyor 34. When the opening is directly below, all the grain inside is discharged to the lower screw conveyor.

  When the opening faces the downflow passage 18 on the left side, the interior of the shutter drum 30 is empty, so that the grain flows in and is filled and collected.

  Eventually, the shutter drum 30 returns to the position immediately above, and stops in a state where the grain is filled therein (see FIG. 6A).

  In the second rotation, the shutter drum 30 rotates slowly in the counterclockwise direction of FIG. 6, and the opening returns to the position directly above and stops. In this rotation, when the opening faces the downflow path 18 on the left side, the shutter drum 30 is already filled with grain, so it does not flow in and is not collected.

  When the opening starts to pass through the left flow path 18 on the left side, the grain in the shutter drum 30 gradually begins to be discharged to the lower screw conveyor 34 (see FIG. 6B).

  When the opening comes to a position directly below, all the internal grains are discharged to the lower screw conveyor 34 (see FIG. 6C).

  When the opening faces the downflow path 18 on the right side, the interior of the shutter drum 30 is empty, so that the grain flows in, fills and is collected (see FIG. 6D).

  Eventually, the opening of the shutter drum 30 returns to the position directly above, and the shutter drum 30 stops with the grain filled therein (see FIG. 6A).

  After the third rotation, it rotates in the direction of alternating rotation in the same manner (collection and discharge) as the second rotation. Therefore, the total discharge amount is the volume of the shutter drum 30 (= unit discharge amount) × the number of rotations.

  The switching control unit 110 is configured to send the current processing state (circulation / discharge signal) to the count execution unit 118, and recognizes that the discharge process is being performed from the circulation / discharge signal. In addition, when a shutter drum operation signal is input from the drying execution control unit 108, a calculation instruction signal is sent to the discharge amount calculation unit 120.

  The discharge amount calculation unit 120 multiplies the count value from the number counter 114 by the unit discharge amount, and sends the result to the display driver 106.

  Here, when multiplying the count value by the unit discharge amount, an error may occur in the weight due to the moisture content at the completion of drying. In other words, the moisture content may be a reference moisture content (default value), but depending on the region, drying may be performed with a moisture content different from the default value as the target moisture content. If the moisture content after the completion of drying is different, the weight is correspondingly affected, so correction is applied based on the moisture content at the time of completion of drying input from the drying execution control unit 108. With this correction, if the moisture content at the completion of drying is higher than the default moisture content, the result is heavier than the above calculation result, and if the moisture content at the completion of drying is lower than the default moisture content, the above calculation result is obtained. Results in lighter than. The default moisture content is 25%.

  In the display driver 106, the accumulated value of the discharge amount is displayed on the display unit 104 provided in the operation unit 60.

  The operation of the present embodiment will be described below.

  In the circulation type grain drying apparatus 10 according to the present embodiment, a tensioning operation for stretching the grain into the grain tank 14 in the body 12, a drying operation for circulating and drying the stretched grain in the body 12, and A discharging operation for discharging the dried grain out of the machine body 12 is performed.

  In the tensioning operation for tensioning the grain, first, the grain stretched in the machine body 12 from the tensioning port 29 on the lower side surface of the circulation type grain drying apparatus 10 is sent to the grain collecting unit 31 and is lowered to the lower screw. It is conveyed by the conveyor 34 to the bucket conveyor 36 side. The conveyed grain is beaten by the grain conveying bucket 41 of the bucket conveyor 36 and conveyed to the top of the machine body 12. Grains conveyed to the uppermost part of the machine body 12 are conveyed to the upper center part of the machine body 12 by the upper screw conveyor 40 and stored in the grain tank 14 by the rotary equalizing machine 42.

  In the drying operation performed after the end of the tension operation, the grains in the grain tank 14 pass through the flow-down path 18 and are fed to the harvesting unit 31 by the reciprocating rotation of the shutter drum 30. At this time, the burner 24 is ignited and the suction exhaust fan 27 is driven. As a result, the dry air is sucked into the suction exhaust fan 27, passes through the partition wall 15 of the air guide path 20, and is directly supplied to the grains in the downflow path 18. Here, a grain drying process is performed. The dry wind after absorbing the moisture of the grain passes through the partition wall 21 of the exhaust passage 22 and is discharged out of the machine body 12 through the exhaust passage 22. On the other hand, the dried grain fed to the grain collecting unit 31 is conveyed again to the grain tank 14 by the lower screw conveyor 34, the bucket conveyor 36, the upper screw conveyor 40, and the rotary sorter 42. In the middle of this conveyance, the moisture sensor 44 detects the moisture value of the grain. The above-mentioned circulation action is repeated until the grain reaches a desired moisture content based on the detected moisture value. When the grain reaches the desired moisture content and drying is completed, the operation of the circulating grain drying apparatus 10 is automatically stopped.

  In the discharge operation performed after the drying process is completed, the switching valve 100 at the top of the bucket conveyor 36 is switched to the discharge side, and the shutter drum 30, the lower screw conveyor 34, and the bucket conveyor 36 are driven. As a result, the grain in the machine body 12 is fed from the shutter drum 30 to the harvesting unit 31, passed through the lower screw conveyor 34, and conveyed to the upper part of the machine body 12 by the bucket conveyor 36. And the grain conveyed to the upper part of the body 12 is discharged | emitted out of the body 12 from the grain discharge port 13. FIG.

  Here, in the present embodiment, when discharging the dried grain, the amount of grain discharged is displayed on the display unit 104 in real time with respect to the discharging operation.

  Hereinafter, according to the flowchart of FIG. 7, a discharge amount display control routine at the time of grain discharge will be described.

  This flowchart is a routine that is started when a grain discharge instruction is issued. In step 150, the switching valve 100 is switched from the circulation position to the discharge position. That is, the switching valve motor 102 is driven to switch the grain guiding direction at the upper part of the bucket compare 36 to a guiding path that leads to the grain outlet 13.

  In this state, when the shutter drum 30, the lower screw conveyor 34, and the bucket conveyor 36 are driven, the grains in the grain tank 14 are sequentially discharged from the grain discharge port 13.

  In the next step 152, the count value C of the number counter 114 is reset, and then the process proceeds to step 154 where the unit discharge amount LC is read from the unit discharge amount memory 122 and sent to the discharge amount calculation unit 120.

  Here, in the next step 156, it is determined whether or not the shutter drum 30 has been operated. That is, the operation from the state of FIG. 6A to the state of (B) → (C) → (D) → (A), or from the state of FIG. 6 (A) to (D) → (C) → ( B) → It is determined whether or not there has been an operation to the state of (A). If an affirmative determination is made in step 156, the process proceeds to step 158 to increment the count value C of the number counter 114 (C ← C + 1). Move to 160.

  In step 160, the cumulative discharge amount L is calculated based on the unit discharge amount LC and the count value C (L ← LC × C). If this calculation is executed every count, the unit discharge amount LC may be accumulated based on the count signal (L ← L + LC). In addition, since the calculation result is corrected by the moisture content at the completion of drying, a highly accurate discharge amount (weight) can be obtained.

  In the next step 162, the result calculated in step 160, that is, the cumulative discharge amount L is displayed on the display unit 104, and the process proceeds to step 164. If a negative determination is made in step 156, the process proceeds to step 164.

  In step 164, it is determined whether or not the discharge is completed. This determination can be made from the load current of the motor, the moisture measurement result, and the like.

  That is, in the case of a motor load, any of the shutter drum 30, the lower screw conveyor 34, and the bucket conveyor 36 may be employed. However, the load current of the drive source (motor) is detected, and this load is much higher than that during circulation. It is only necessary to detect that there is no grain at the time when the level becomes low and stop the discharging operation.

  Further, the moisture sensor 44 measures the moisture in a state where there is no grain to be sampled, so that the resistance becomes extremely high, and this may be used as a trigger for stopping the discharge operation.

  If a negative determination is made in step 164, the process returns to step 156 and the above process is repeated. If an affirmative determination is made in step 164, it is determined that the grain discharge has ended, and this routine ends.

  As described above, in the present embodiment, when the grain is dried while being circulated and reaches a predetermined moisture value, when the grain is discharged from the grain tank 14, the display unit 104 is synchronized with the discharging operation. The emission amount is displayed on the screen. The display of the grain discharge amount on the display unit 104 eliminates the need for the operator to perform weighing after the discharge, thereby improving the work efficiency after the drying process.

  In the present embodiment, the grain is collected by applying the shutter drum 30. However, while rotating a so-called water wheel type rotating body that divides the grain end region evenly in the circumferential direction in a certain direction, A structure for collecting grains may also be used.

  Further, in the present embodiment, the weight of the grain is used as the discharge amount displayed on the display unit 104, but the present invention is not limited to this weight and may be a volume. In addition, information related to the discharge amount, for example, information indicating the completion of discharge, information indicating that the discharge amount has been set in advance (both a lamp and a buzzer can be applied) may be notified.

It is a perspective view which shows the external appearance of the circulation type grain drying apparatus which concerns on this Embodiment. It is a schematic sectional drawing of the circulation type grain drying apparatus which concerns on this Embodiment. It is the III-III sectional view taken on the line of FIG. It is a block diagram of the circulation type grain drying device concerning an embodiment of the invention. It is the block diagram which showed functionally the discharge control performed by the discharge instruction | indication concerning this Embodiment. It is a front view which shows the operation state of a shutter drum. It is a control flowchart which shows the procedure for displaying the discharge | emission amount at the time of the grain discharge started at the discharge instruction | indication time concerning this Embodiment.

Explanation of symbols

10 Circulating grain dryer 13 Grain outlet 14 Grain tank (drying room)
16 Drying unit 28 Motor 30 Shutter drum (quantitative recovery means)
32 Synchronous motor 34 Lower screw conveyor (conveying means)
36 Bucket conveyor (conveyance means)
38 Synchronous motor 40 Upper screw conveyor (feeding means)
48A Microcomputer 48B Drive current detection unit 56 Discharge operation switch 60 Operation unit 64 CPU
100 switching valve (switching means)
102 Switching valve motor (switching means)
104 Display (notification means)
106 Display Driver 108 Drying Execution Control Unit 110 Switching Control Unit 112 Motor Driver 114 Count Counter (Counting Unit)
116 Unit discharge amount reading unit 118 Count execution unit 120 Discharge amount calculation unit (discharge amount calculation means)
122 Unit discharge memory

Claims (3)

Grain drying in which grains are circulated through a circulation path, drying means is provided for drying by exposing the circulated grains to a heated atmosphere, and the dried grains are discharged from the circulation path by a certain amount. A device,
A grain drying apparatus that reports a discharge amount obtained from the number of discharges from the circulation path or information related to the discharge amount. A drying chamber that promotes drying by exposing it to a heated atmosphere in which grains are deposited, a quantitative recovery means for taking a certain amount of grains deposited in the drying chamber from the lower layer side, and a grain recovered by the quantitative recovery means A conveying unit that conveys the grain conveyed to the upper layer; and a sending unit that sends the grain conveyed by the conveying unit to the upper layer of the grain accumulated in the drying chamber. A grain drying apparatus comprising switching means for guiding the grain being conveyed to either the first guide path for guiding to the delivery means or the second guide path for discharging the grain outside the apparatus,
Counting means that starts when the switching valve is switched to the second guide path, and counts the number of times of collection by the quantitative recovery means;
A discharge amount calculating means for calculating a discharge amount of cereal based on a count value by the counting means and a single collection amount by the quantitative recovery means that is known in advance,
A notification means for notifying at least one of the discharge amount calculated by the discharge amount calculation means or information related to the discharge amount;
Having grain drying equipment.   The discharge amount is discharge weight, and the information related to the discharge amount includes discharge volume, the number of discharged particles, discharge completion information, and arrival information to a preset discharge amount. The grain drying apparatus according to claim 2.

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