JP3799661B2 - Grain moisture measuring device for grain drying facility - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a grain moisture measurement control device for a grain drying facility.
[0002]
[Prior art]
Conventionally, grain moisture measurement control in a grain drying facility is performed by an operator starting each machine of the grain drying facility to collect a grain sample and measuring moisture, or supply conveyor, discharge conveyor and There is a known method for measuring moisture using a moisture sensor provided in the grain circulation path of a grain raising machine, etc., but when fully measuring grain moisture, time reservation is made for each storage bin. Etc., and a method for giving priority to moisture measurement and controlling the start order has not been performed.
[0003]
[Problems to be solved by the invention]
The order of grain moisture measurement in each storage bin should be measured with the highest priority on this grain in this storage bin, which was supplied with ginger the day before, but this was not done The order is determined and the grain moisture in the storage bottle is measured based on the priority order.
[0004]
[Means for Solving the Problems]
For this purpose, the present invention mixes the grains by stirring in a plurality of storage bins 5, 5... For accumulating the grains sequentially transferred from the supply conveyor 3, and makes the distribution uniform. While providing the movable stirring device 9, the blower 12 that blows dry air, the discharge conveyor 6 that discharges the grain, and the ascending machine 2 that connects the supply conveyor 3 and the discharge conveyor 6 are used to supply the grain. In the grain drying facility in which the circulation path 14 is provided with a moisture sensor 15 for measuring grain moisture, the moisture sensor 15 measures the grains stored in the storage bins 5, 5. The storage bin 5 to which the receiving grain is supplied on the same day, the grain of the storage bin 5 in which the grain is in a full state, the grain in the storage bin 5 in the dry state in which the grain is in a dry state, and in the dry state that is not full in that a control device 16 for controlling the order of the storage bin 5 The structure of the grain moisture measurement control unit for grain drying plant to symptoms.
[0005]
[Effects of the Invention]
In the grain drying facility, the received grain (ginger) is subjected to pretreatment, for example, weight measurement, rough sorting, and the like, and is supplied to the grain raising machine 2. From this grain raising machine 2 to the supply conveyor 3. Supplied and transferred by the supply conveyor 3, a predetermined amount of grain is supplied into the storage bins 5, 5..., And the grains in the storage bins 5, 5. The mixture is agitated and mixed for a predetermined time, and further dried by ventilation air from the blower 12 while the grain distribution is made uniform. When this predetermined time has elapsed, the dried grain is discharged from the storage bin 5 to the discharge conveyor. 6, the circulation is repeated into the storage bin 5 through the grain raising machine 2 and the supply conveyor 3, and the moisture of the grains is measured by the moisture sensor 15 while circulating in the circulation path 14.
[0006]
During this drying operation, the grains (ginger) that arrive in sequence on the next day, the day after next, etc., are sequentially supplied into the storage bins 5, 5. While being stirred and ventilated, depending on the amount of grains received, the accumulated amount of grains supplied into each of the storage bins 5, 5,... Each storage bin 5, 5 ... can be made. Measurement control of grain moisture when this situation occurs is more to the controller 16 is controlled by the priority as follows, grain moisture is measured by the moisture sensor 15.
[0007]
First, the moisture of the grain in the storage bottle 5 to which the grain arrived on the day is supplied is measured. Next, the moisture of the grain in the storage bin 5 is measured in which the grain that has arrived on the day of being dried is not supplied and the inside of the storage bin 5 is full of grains. Next, the moisture of the grain in the storage bin 5 is measured in which the grain received in the day during drying is not supplied and the storage bin 5 is not filled with the grain.
[0008]
【The invention's effect】
By prioritizing and measuring the grain moisture, the grain in the storage bottle 5 where the grain (ginger) was supplied on the previous day was measured first, and mixing by stirring for a predetermined time By measuring at the place where the effect is produced, it is possible to accurately detect the grain moisture, and there is no supply the previous day, and the full quantity state or the less amount state is sequentially measured, thereby causing trouble in receiving work. Therefore, the night time can be used more effectively, the moisture measurement time can be taken longer, and the moisture measurement accuracy can be improved.
[0009]
【Example】
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The figure is related to a grain drying facility that receives grain (ginger) and dries by ventilation. The machine, the storage bin relay conveyor, and the pallet plant disposed in the subsequent stage, the shipping weighing machine, the automatic weighing and packaging machine, the rice milling machine, etc. It is a figure which shows the grain drying plant | facility 1 which arrange | positioned the supply conveyor 3, the supply moving conveyor 4, the several storage bins 5, 5, ..., the discharge conveyor 6, etc. in multiple rows.
[0010]
The various processing steps are completed in the previous stage, and the received grain (ginger) that is transferred by the interrupting conveyor (not shown) is supplied to the relay conveyor 7 and transferred by the relay conveyor 7. The belt conveyor with a bucket conveyor that also serves as a circulation is fed to the cerealing machine 2 and conveyed to the upper part by the bucket conveyor of the elevator 2. The two-way switching device 8 is provided, and the grains conveyed upward by the groining machine 2 are supplied from the two-way switching device 8 to the supply conveyor 3 by opening / closing control of the two-way switching device 8. Then, it is transferred by the supply conveyor 3 and supplied to the supply moving conveyer 4 provided on the lower side of the movable load. Grain by grain varieties or blended grains The kind-based or the like, a predetermined amount is sequentially supplied to the daily stock to stock, are configured to be accumulated stored.
[0011]
The storage bin 5 may have either a square shape or a round shape, but the drawing shows a configuration in which approximately 50 tons can be stored as a square shape, and a stirring device 9 is suspended in the storage bin 5. This stirring device 9 is provided with a stirring screw 11 for transferring the grain from the bottom to the top on a shaft 10 that is rotatable and suspended by a motor (not shown) or the like. The stirring device 9 is moved in the storage bin 5 by a motor (not shown) or the like at predetermined intervals set in the left-right direction, the front-rear direction, and the oblique direction, and is sequentially supplied and accumulated. The grain is configured to make mixing and distribution uniform by stirring.
[0012]
A drying net (not shown) is stretched at the bottom of the storage bin 5, and the dry air generated from the blower 12 is passed through the drying net and discharged by an air blower (not shown). As a structure to wind, it is set as the structure which ventilates dry air to the grain under mixing, and a grain is dried, The structure which provided the automatic shutter 13 which discharges | releases a grain in each of these storage bins 5, 5 ... lower part It is said.
[0013]
The discharge conveyor 6 is provided below the storage bins 5, 5..., And the grains in the storage bins 5 are supplied from the automatic shutter 13 to the discharge conveyor 6 by opening / closing control of the automatic shutter 13. The supply conveyor 3 and the discharge conveyor 3 are connected to the upper and lower parts of the grain raising machine. The discharge conveyor 6 includes a straw flow sensor 17a that detects the flow of the grains. The configuration is provided.
[0014]
The grain transferred by the discharge conveyor 6 is supplied to the grain raising machine 2 and conveyed to the upper part by the grain raising machine 2, and the grain is discharged at the end of drying by the opening / closing control of the two-way switching device 8. Alternatively, it is controlled to discharge to the supply conveyor 3, and when discharged to the supply conveyor 3, the grain is circulated, and the circulation path 14 has moisture for measuring the moisture of the circulating grain. A sensor 15 is provided.
[0015]
The moisture sensor 15 is provided, for example, at a substantially intermediate position in the vertical direction of the groining machine 2, receives the grains that fall while being transported upward by the groining machine 2, and carries the grains one by one. As a configuration for measuring the grain moisture by detecting multiple electrical resistance values of the pulverized grains that have been pulverized by pressure, calculating an average value, substituting the average value with a moisture value Yes.
[0016]
The control (priority order) of the grain moisture measurement order measured by the moisture sensor 15 is a configuration controlled by the control device 16, and this control device 16 is provided in an operating device (not shown). This operating device is configured to be provided in a control room (not shown) that is normally driven by an operator in the grain drying facility 1. The control device 16 is provided with a CPU 17, to which the supply timing of the grains to be supplied into the storage bins 5, 5... And the accumulated storage amount are input. 3. It is set as the structure by which the supply conveyor 4 for a movement, the discharge conveyor 6, the groining machine 2, etc. are started and stopped.
[0017]
Each of the storage bins 5, 5... Is supplied with kernels, and each work process such as the first day, the second day, the third day, and the fourth day of the work content is performed as shown in FIG. In this configuration, receiving, stirring (drying operation), moisture measurement, and stirring (drying operation) are sequentially controlled for a predetermined time, and these operations are sequentially repeated. The control (priority order) of the order of grain moisture measurement by the control device 16 is the grain of the storage bin 5 to which the receiving grain has been supplied on the day, and then the storage bin 5 during drying. The inside is a grain that is full of grains, and the next is a storage bin 5 that is being dried, and the inside of the storage bin 5 is controlled in the order of the grain that is full of grains and not full. Detailed control is performed as shown in FIG.
[0018]
Grain drying is started (step 101), it is detected whether there is a storage bin 5 that is received and supplied on the day (step 102). If YES is detected, the stirring timer is UP (step 103), NO When it is detected, it is detected whether the stirring operation mode is finished (step 104), and when YES is detected, the supply conveyor 3, the transfer conveyor 4, the discharge conveyor 6 and the grower 2 in the circulation path 14 are controlled to start. (Step 105), and thereafter, these machines 2, 3, 4, and 6 are displayed as 14 circulation paths. If YES is detected in step 103, the process proceeds to step 105.
[0019]
Whether the soot detection is ON (whether it has flowed) is detected (step 106). If NO is detected, it is detected that there is a soot detection failure and whether the timer is set (step 107). If NO is detected, the timer is set (step 108) If the wrinkle detection is defective and the timer is UP (step 109), or NO is detected, the process returns to step 106. If YES is detected in step 107, the process proceeds to step 109. If YES is detected in step 109, the timer is reset, the moisture measurement process is performed (step 110), and the process returns to step 102.
[0020]
If YES is detected in step 106, the wrinkle detection is poor, the timer is reset (step 111), the moisture measurement process of the grain is performed (step 112), the circulation path 14 machine is controlled to stop (step 113), and it is being dried. Whether or not there is a full storage bin 5 without receiving on the day is detected (step 114), and if NO is detected in step 102 and step 104, the process proceeds to step 114.
[0021]
When YES is detected at step 114, the agitation timer is controlled from UP (step 115). When YES is detected, the circulation path 14 machine start-up control is performed (step 116), and whether the soot detection is ON (whether the soot has flowed) is detected ( Step 117) If NO is detected, the process returns to Step 107, and Steps 107 to 110 are controlled as shown in the figure.
[0022]
If YES is detected at step 117, the wrinkle detection is poor, the timer is reset, the grain moisture measurement process is performed (step 118), the circulation path 14 machine is controlled to stop (step 119), and it is not full while drying. Whether or not there is a storage bin 5 that does not receive cargo on the day is detected (step 120), and if NO is detected in steps 114 and 115, the process proceeds to step 120.
[0023]
If YES is detected in step 120, the stirring timer is UP (step 121). If YES is detected, the circulation path 14 machine is controlled to start (step 122) and whether the soot detection is ON (whether the soot has flowed) is detected. (Step 123) When NO is detected, the process returns to Step 107, and Steps 107 to 110 are controlled as shown in the figure.
[0024]
When YES is detected in step 123, the wrinkle detection is poor, the timer is reset, the grain moisture measurement process is performed (step 124), the circulation path 14 machine is controlled to stop (step 125), and the process returns to step 102. . If NO is detected in step 120 and step 121, the process returns to step 102.
[0025]
Control of the set routine of the stirring timer (not shown) is controlled as shown in FIG. The setting of the stirring timer is started (step 201), and it is detected whether the storage bin 5 has finished receiving the cargo (step 202). When NO is detected, the process returns to step 202, and when YES is detected, the stirring timer is set. (Step 203), and the setting is completed (step 204).
[0026]
6 and 7 are diagrams showing calculation control of the weight that can be supplied into each storage bin 5. A central control device 19 is provided to which these data are input from the holding circuit 18 that holds the receiving and supply completion time and the supply average moisture, and various items are output from the central control device 19 to the holding circuit 18. There is an arrangement in which an input / output control device 20 is provided for outputting various items from the central control device 19 and for inputting to the central control device 19.
[0027]
The moisture measurement data of the grain in the moisture sensor 15 is configured to be input to the central control device 19 through the analog processing circuit 21, and the moisture sensor 15 through the analog processing circuit 21 from the central control device 19. Is configured to start and stop. Various display items are displayed on the display device 22 from the central control device 19.
[0028]
The input / output control device 20 is configured to start and stop each stirring device 9, each groining machine 2, each groining machine 2, each supply conveyor 3, each movement supply conveyor 4, each discharge conveyor 6, and the like. Yes. The calculation of the weight that can be received and supplied to each storage bin 5 is controlled as shown in FIG.
[0029]
The drying operation is started (step 301), and it is detected whether there is a storage bin 5 that has completed receiving (step 302). If YES is detected, a timer for 12 hours, for example, is set in the storage bin 5 (step 303). ), The process proceeds to step 304. Steps 304 to 311 are controlled as shown in the figure. When NO is detected in step 302, the process proceeds to step 304.
[0030]
It is detected whether the estimated drying rate is equal to or more than the actual drying rate obtained from the grain moisture measured by the moisture sensor 15 (step 312), and when NO is detected, the estimated drying rate = estimated Drying rate + (actual drying rate-estimated drying rate) / 2 is set (step 313). If YES is detected, the estimated drying rate is replaced with the actual drying rate (step 314). Proceed or end (step 315).
[0031]
By the above, the whole grain moisture is calculated from the moisture measurement result after the end of one stirring operation, and the actual dryness reduction rate is detected. By this actual dryness reduction rate, an accurate conceivable weight can be obtained. In addition, it is possible to improve the accuracy of the weight that can be received by correcting the estimated drying rate as needed.
[Brief description of the drawings]
FIG. 1 is a flowchart.
FIG. 2 is a flowchart.
FIG. 3 is a work schedule.
FIG. 4 is a side view of a part of a grain drying facility.
FIG. 5 is a block diagram.
FIG. 6 is a flowchart showing another embodiment.
FIG. 7 is a block diagram showing another embodiment.
[Explanation of symbols]
2 Graining machine 3 Supply conveyor 5 Storage bin 6 Discharge conveyor 9 Stirring device 12 Blower 14 Circulation path 15 Moisture sensor 16 Control device

Claims (1)

A plurality of storage bins 5, 5... For accumulating and storing the grains sequentially transferred from the supply conveyor 3 are provided with a movable stirring device 9 that mixes the grains by stirring and makes the distribution uniform. At the same time, the circulation path 14 that circulates the grains by the blower 12 that blows the drying air, the discharge conveyor 6 that discharges the grains, and the ascending machine 2 that connects the supply conveyor 3 and the discharge conveyor 6 has a grain. in grain drying plant comprising providing a moisture sensor 15 for measuring the particle moisture load receiving moisture measurement order to measure the該穀grains stored in respective storage bins 5,5 ...... with the moisture sensor 15 to the day The grain of the storage bin 5 to which the grain is supplied, the grain of the storage bin 5 in the dry state in which the grain is full, and the storage bin 5 in the dry state that is not full in the grain are controlled in this order . A grain drying facility characterized by providing a control device 16 Grain moisture measurement controller.

Images