JPH05118755A - Drying device for mainly drying crops - Google Patents

Abstract

PURPOSE:To prevent irregular dispersion of drying or excessive drying or poor drying from being generated in each of storing bins by a method wherein crop particles having various different moisture values are distributed and transported into each of the storing bins in response to the moisture values, transported weights per one bin within each of moisture groups are averaged and a drying operation through the transfer of the unit bin in accordance with a predetermined rotation. CONSTITUTION:A drying device is comprised of a feeding weight counting device 19 for counting weight of crops for every small amount and a moisture sensor 20 for sensing moisture values of the crops arranged between a crop feeding lifter 12 for receiving crops and a relay conveyor 13. The crops are distributed from a top conveyor 14 into some different storing bins 10 in response to moisture characteristics of crops such as 'wet', 'semi-dried' and 'dried', thereafter an electrical shutter 16 for transporting crops and an unloading conveyor 17 are operated, weights of crops per one bin are averaged for every group having each of moisture characteristics fed over a plurality of bins, thereafter the drying processing through the transferring operation is carried out in accordance with a predetermined procedure of rotation under for each unit of bin.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grain drying apparatus mainly used in a drying treatment facility for collecting and drying and storing grains such as rice and wheat.

[0002]

2. Description of the Related Art Conventionally, a drying device of this type has been disclosed in Japanese Patent Laid-Open No.
As disclosed in Japanese Patent No. 122485, in addition to a large number of storage bins for storing grains, a large number of drying tanks for drying grains and a single replacement tank are provided, and once in each drying tank ( After completing the drying process (about 1 day), transfer the grain from one of the drying tanks to the replacement tank, transfer the grains in the other drying tanks to the empty drying tank, and finally to the empty tank. The grain in the replacement tank is transferred to another drying tank, dried again, and the drying due to this transfer is repeated several times to prevent uneven drying in each drying tank. In addition, the moisture of the grain is detected by a moisture sensor at the time of transfer using such a replacement tank, and when the moisture content becomes a predetermined value or less, the remaining drying time is calculated and the drying process is terminated after the lapse of the time, We are trying to prevent overdrying and underdrying.

[0003]

However, in the above, there is a problem that, in the first place, in addition to a large number of storage bins, a large number of drying tanks and replacement tanks are required, and the equipment cost increases accordingly. Secondly, in the above, a moisture sensor is used, and the moisture content of the grain can be detected for each drying tank by this moisture sensor, and the drying time can be set according to the moisture content. Since the grains that are first loaded into the plant are packed in a state where grains with different moisture contents are mixed together, it is not sufficient to transfer the grains or set the drying time for each drying tank. There is a problem that the grain part having a low water content tends to be overdried and the grain part having a high water content tends to be underdried.

In the present invention, the storage bins are dried by transferring grains and the like without separately providing a drying tank or a replacement tank, thereby reducing the equipment cost and preventing the unevenness of drying in each storage bin. Grains etc. to be carried in for the first time are weighed by a predetermined amount and the bins to be loaded are sorted according to the moisture value, and the transported amount per storage bin is averaged for each sorted moisture group and transferred. An object of the present invention is to mainly provide a grain drying device capable of preventing overdrying and insufficient drying of grains and the like in each storage bottle by performing drying by the above method.

[0005]

In order to achieve the above object, therefore, as shown in FIG. 1, a large number of storage bins 10 connected to an air supply path 11 and an object to be dried are stored in these storage bins 10. The carry-in machine 15 for carrying in, and the carry-out machine 1 for taking out the material to be dried from the storage bin 10 and delivering it to the carry-in machine 15.
8, a carry-in weighing device 19 for weighing the dried substance carried into the storage bin 10 by a predetermined amount, a moisture detector 20 for detecting the moisture value of the dried substance weighed by the weighing device 19, and FIG. As shown, controlling the carry-in machine 15 and the carry-out machine 18,
Empty storage bin 1 from storage bin 10 into which the material to be dried is loaded
0 is provided with a transfer controller 40 for transferring the material to be dried by a predetermined rotation, and the transfer controller 40 changes the content of the material to be dried to be carried in for the first time according to the water content value detected by the water content detector 20. Sorting means 45 that sorts to the storage bins 10 according to the classification, and when the loaded amount of one storage bin 10 in one sorted moisture group exceeds the maximum value, changes the destination to another storage bin 10. And a calculator 46 for calculating the total carry-in weight of the material to be dried divided into different moisture groups and obtaining the average carry-in weight per storage bin 10 for each different moisture group, and the calculator 46. An averaging means 47 is provided for averaging the carry-in weight per storage bin 10 for each moisture group based on the average carry-in weight.

[0006]

[Function] Since the carry-in weight per storage bottle 10 is averaged and packed for each moisture group, drying by transfer according to a predetermined rotation allows uniform drying in each storage bottle 10 within the same moisture group. In addition to being able to perform uniform drying on the part of the material to be dried packed in each storage bin 10 unit, the group with a high water content can supply more air than the group with a low water content. The drying process can be performed according to each moisture value only by changing the drying process in units of groups such as increasing the supply time, and it is possible to prevent uneven drying in each storage bottle 10 and to prevent overdrying or insufficient drying. It can be prevented.

[0007]

1 shows a grain drying treatment facility to which the drying apparatus of the present invention is applied, in which a grain receiving hopper 1, a load receiving elevator 2, and a threshing machine 3 for grain brought in by a truck or the like are provided on the load receiving side. Each of them is provided with a rough selecting machine 4 and a receiving and weighing machine 5 for weighing the received grain by a predetermined weight (for example, 500 kg), and on the shipping side, an adjusting tank 6, a huller 7, an oscillating sorter 8, and a shipping tank 9. Each is equipped with. Then, between the load receiving side and the shipping side, the NO. 1-NO. 10 storage bins 10 and loading elevator 1
2, a relay conveyor 13, and a movable top conveyor 14 having a position sensor 14a, a carry-in machine 15 for carrying grain into the storage bins 10, an electric shutter 16 for opening and closing the bottom side of each storage bin 10, and an outlet section. Is provided with a take-out conveyor 17 that faces the lower receiving port 12a of the loading elevator 12 to take out the grain from the storage bin 10
The carry-out machine 18 to deliver to the side is provided. In addition, between the upper discharge port 14b of the throwing elevator 14 and the relay conveyor 13, a predetermined amount of grain to be loaded into the storage bin 10, for example, if the capacity of one storage bin 10 is 100 kg, about 20
There is provided a carry-in weighing device 19 for weighing each one-half of 5 kg, and a moisture detector 20 for detecting the moisture value of the grain weighed by the weighing device 19.

Each storage bin 10 is provided with an empty bin sensor 21 for detecting that it is empty and a level sensor 22 for detecting that it is full. Also, the air supply path 1
1 is supplied with room-temperature dehumidified air generated by an air conditioner 23 and sent by a fan 24. The supply path 11 and the inside of each storage bin 10 are connected via an electric damper 25 that can be opened and closed. There is. Further, a three-way switching valve 26 is provided at the outlet of the take-out conveyor 17, one switching port is connected to the input elevator 12 side, and the other switching port is connected to the adjustment tank 6 on the shipping side. It is connected to the elevator 27.

2 shows a rotation control unit 44 for controlling the carry-in machine 15 and the carry-out machine 18 and transferring the grain from the storage bin 10 into which the grain has been carried into the empty storage bin 10 by a predetermined rotation. Carrying controller 40
A controller 41 including a microprocessor is used, and an input section 42 of the controller 41 includes the position sensor 14a, a carry-in weighing device 19, and a moisture detector 2.
0, an empty bin sensor 21, and a level sensor 22 are connected, and a storage bin into which grains are loaded during rotation control and which is to be transferred (hereinafter referred to as a departure bin), and an empty storage bin. An input device 28 consisting of a keyboard for designating a receiving side (hereinafter referred to as a receiving bin) is connected, and the output part 43 is connected to the carry-in machine 15 and the carry-out machine 18 and each storage device. Display 29 simulating loading state of bin 10
Are connected. In addition, the controller 41 that constitutes the transfer controller 40 includes the air conditioner 23, the fan 24,
The electric damper 25 and the three-way switching valve 26 are also controlled.

Further, the transport controller 40 corresponds to the three different moisture categories shown in Table 1 according to the moisture value detected by the moisture detector 20, and corresponds to the three different moisture categories shown in Table 1.
When the loading amount of one storage bin 10 in one moisture group assigned to 0 is full, the sorting means 45 that changes the loading destination to the other storage bin 10 and the different moisture groups are classified. A calculator 46 for calculating the total carry-in weight of grains and calculating the average carry-in weight per storage bin 10 for each different moisture group, and for each moisture group based on the average carry-in weight obtained by the calculator 46 And an averaging means 47 for averaging the carry-in weight per storage bin 10.

[0011]

[Table 1]

That is, as shown in FIG. 3, step a
NO. 1-NO. “0” in the moisture classification data Bn and the carry-in weight data Mn (n = 1 to 9) of each storage bin 10 of No. 9
Is stored and initialized. Incidentally, NO. No. 10 does not carry in the grain for the first time because it is necessary to leave at least one machine as an empty bottle when transferring the grain.

Then, in step b, the carry-in weighing device 19 weighs 5 kg at a time, and in step d, the moisture value is detected by the moisture detector 20. In steps d-1 to d-3, the group identifier G is determined according to the classification shown in Table 1. To "1" or "2" or "3"
Is substituted. Now, if the moisture value is 22% or more, G = 1. Subsequently, in step e, “1” is stored in the bin number index n, and in step f, NO. The moisture classification data B1 corresponding to 1 is "0", that is, NO. If 1 is still empty and the incoming grain is the first one, step g. Step 1 after loading the grain into 1
In step i, the group identifier G = 1 is stored in B1. "1" is added to the carry-in weight data M1 corresponding to 1, the bin number index n is cleared to "0" at step j, and the procedure returns from step k to step b to perform the next weighing.

If the next weighed grain has the same moisture classification, G = 1
Since B1 = 1 in step f is not 0, the process proceeds to step o, where G = B1 = 1, that is, NO.
It is determined that the grain belongs to the same moisture classification as the grain that has already been carried into No. 1 and NO in Step p. 1 is the level sensor 2
This NO. The imported grain is added to the item 1 and is imported, and the process is returned to step b again.

The moisture value of the next measured grain is, for example, 20%.
If so, G = 2, which contradicts B1 = 1. Therefore, a negative determination is made in step o, the process proceeds to step m, the bin number index n is updated by 1, and then the process returns to step f.
Since B2 = 0 here, NO in step g. After the grain is carried into No. 2, G = 2 is stored in B2 in step h, and NO in step i. "1" is added to the carry-in weight data M2 of 2, and the process returns from step k to step b to perform the next weighing.

When the moisture value of the next measured grain is 18% or less, G = 3, and when the bin number index n is updated to 3 in step m, NO. After the grain is carried into No. 3, G = 3 is stored in B3 in step h, and NO in step i. "1" is added to the carry-in weight data M3 of No. 3, and the procedure returns from step k to step b to perform the next weighing.

Further, if the moisture value of the next measured grain is 21%, G = 2, and when the bin number index n is updated to 2 in step m, NO in step g. After adding the grain to B2 and carrying in, G = 2 is stored again in B2 in step h, and NO in step i. "1" is added to the carry-in weight data M2 of 2, and the process returns from step k to step b to perform the next weighing.

Then, the carrying-in of each predetermined amount proceeds to some extent, for example, NO. If 1 is full, the process proceeds from step p to step m, and when the bin number index n is updated to 4 at step m, the process proceeds from step f to step g, and the NO. 4. Grain is loaded into step 4, G = 1 is stored in B4 in step h, and step i
Then, "1" is added to M4, the process is returned from step k to step b, and the next measurement is performed.

Even if n = 9 is obtained by updating the bin number index n in step m, if a negative determination is made in step o or an affirmative determination is made in step p,
Since there may be a case where the incoming grain is excessively large due to a failure of the load receiving and weighing device 5 or the like, the process proceeds from step q to step r, an alarm is issued, and the process is terminated.

In this way, the grains having various moisture values, which are sequentially and randomly loaded, are distributed to the predetermined storage bins 10 according to the moisture values. The process proceeds from step c to step s and shifts to processing such as averaging. Here, for example, in 500 kg, if 240 kg is wet, 140 kg is semi-dry, and 120 kg is dry, for example, as shown in the figure, the wet grain is NO. 1, 4, 5
And, the semi-dried grain is NO. 2,6, N dry grains
O. They are loaded into 3 and 7 in ascending order of number.

In step s, 3 is added to the number of bottles C1 in the wet group and 240 kg to the total carry-in weight T1, and in step t, 2 is added to the number of bottles C2 in the semi-dry group and 140 kg to the total carry-in weight T2. In step u, 2 is stored in the number of bottles C3 in the dry group and 120 kg is stored in the total carry-in weight T3, respectively, and then in step v, the average weight of each group, that is, 80 kg in the wet group and 70 kg in the semi-dry group. In the dry group, 60 kg is calculated, and the averaging is performed in step w.
For this averaging, for example, the grain is once carried out from a bin (for example, NO. 1) that exceeds the average carry-in weight, and the empty bin NO.
Bottle N with average weight of 10 and balance below average weight
O. No. 5 of the other bottles exceeding the average weight. No.
No. 1 for the average weight and the rest for the bottle NO.
It is carried out through the procedure of loading into No. 5. In addition, for this averaging, in addition to this, a carry-out weighing device is provided on the carry-out side of each storage bin 10, and the difference from the average weight is carried out from the bins exceeding the average weight and transferred to the bins below the average weight. You may do it. Thus, after step w, the carry-in weight per storage bottle 10 is made uniform for each moisture group as shown in the figure.

Next, the rotation control is started. First, in step x, the origin bin and the destination bin are designated as shown in Table 2, and in step y, the rotation is executed a predetermined number of times. In this example, the rotation is performed three times, and one rotation is completed by changing the ranks 1 to 7 each time. Empty bottle NO. Is the number of the storage bin that becomes empty when the transfer of the rank 7 is completed in each rotation.

[0023]

[Table 2]

Thus, during rotation, the grains are averaged and packed according to each moisture value, so that each storage bin 10 in the same moisture group can be uniformly dried, and each storage bin 10 per unit. Uniform drying can be performed in the part of the grain that has been packed in, and, for example, in the group with a high moisture value, the opening time of the electric damper 25 is set longer than in the group with a low moisture value, and the supply time of the supply air is increased. Can be dried according to the moisture value, such as
It is possible to prevent uneven drying in each storage bottle 10 and prevent overdrying or insufficient drying.

In the above embodiment, the air conditioner 23 is used to supply dehumidified air to the supply passage 11, but the atmosphere may be used as it is without using dehumidified air.

[0026]

As described above, according to the present invention, it is possible to reduce the facility cost without separately providing a drying tank or a replacement tank, and the average carry-in weight per storage bottle 10 for each moisture group. Since each of the storage bottles 10 in the same moisture group can be uniformly dried by being dried by transferring in accordance with a predetermined rotation, the dried material packed in one storage bottle 10 can be dried. Uniform drying can be performed in parts, and the drying process can be performed according to each moisture value simply by changing the drying process for each group, and it is possible to prevent uneven drying in each storage bottle 10 and overdry or insufficient drying. Can be prevented.

[Brief description of drawings]

FIG. 1 is a schematic view showing a drying device according to the present invention.

FIG. 2 is a block configuration diagram of the transfer controller.

FIG. 3 is a flowchart of the transfer controller.

[Explanation of symbols]

 10 Storage Bin 11 Supply Channel 15 Carry-in Machine 18 Carry-out Machine 19 Carry-in Weigher 20 Moisture Detector 40 Transport Controller 45 Sorting Means 46 Computing Unit 47 Averaging Means

Claims (1)

[Claims] 1. A large number of storage bins 10 connected to an air supply path 11, a carry-in device 15 for carrying in dried products into these storage bins 10, and a carry-in device for taking out dried products from the storage bins 10. 15, a carry-out device 18 for delivering to the storage bin 10, a carry-in measuring device 19 for measuring a predetermined amount of the material to be dried carried into the storage bin 10, and a moisture detector for detecting a moisture value of the material to be dried measured by the measuring device 19. 20 and a transfer controller 40 that controls the carry-in device 15 and the carry-out device 18, and transfers the dried material from the storage bin 10 into which the dried material is loaded to the empty storage bin 10 by a predetermined rotation. The transfer controller 40 distributes the dried object to be carried in for the first time to the storage bins 10 corresponding to different moisture classifications according to the moisture content detected by the moisture detector 20, and within one of the distributed moisture groups. One in When the carry-in amount of the storage bin 10 of the machine exceeds the maximum value, the sorting means 45 for changing the carry-in destination to another storage bin 10 and the total carry-in weight of the material to be dried classified for each different moisture group are calculated and different. An arithmetic unit 46 for obtaining an average carry-in weight per storage bottle 10 for each moisture group,
Mainly a grain drying device characterized by including an averaging means 47 for averaging the carry-in weight per storage bin 10 for each moisture group based on the average carry-in weight obtained by the calculator 46. ..