JPH06221756A - Control device for grain drying equipment - Google Patents

Abstract

PURPOSE:To perform a suitable drying treatment in accordance with items being dried by judging whether received grain is rice or wheat, on the basis of differences in a harvest time, and automatically switching equipments by items, which are different in specification between rice and wheat. CONSTITUTION:A number of storage bins 10 are provided to be connected to dehumidifying air passages 9. When the time and date for receipt of goods into hoppers fall on a first section, that is, from August 1 to December 31 and from January 1 to May 10, of a term for use of a facility stored in a memory, rice is uniformly judged and when such time and date fall on a term from May 11 to July 31, wheat is uniformly judged, such that switching of range in a weighing equipment 3 and switching between a rice selecting route 18 and a wheat selecting route 20 are automatically effected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for a grain drying facility equipped with a storage bottle for drying and storing grains such as rice and wheat that have been received.

[0002]

2. Description of the Related Art Conventionally, this type of grain drying facility is widely known as disclosed in Japanese Patent Laid-Open No. 122485/1993.
Equipped with a large number of storage bins for dry storage of grains and various peripheral equipment, dehumidified air is blown under the control of water content by a control device, and prescribed drying processing is performed on grains such as rice and wheat. I am trying.

[0003]

However, according to the conventional method, in order to carry out a drying process suitable for each item depending on whether the grain received is rice or wheat, the operator should handle the item of the grain received. Therefore, it is necessary to switch the range of the water / weighing machine and the equipment to be operated each time, and the operation becomes so complicated that proper drying process cannot be performed due to switching error. There is.

The present invention considers rice, which is a typical grain, and wheat as main items to be dried, and pays attention to the fact that the harvest time and facility use period of both are almost the same throughout the year without any substantial difference. It is an object of the present invention to provide a control device for a grain drying facility that can automatically perform a drying process suitable for each item by constructing a time scheduler based on the difference in facility usage period.

[0005]

In order to achieve the above object, therefore, as shown in FIG. 1, there is provided a control device for a grain drying facility, which comprises a storage bin 10 for drying and storing the received grain. Also, as shown in FIG. 3, a memory 51 for storing the facility use period divided for each item to be dried, and a clock 5
2, item determination means 53 for determining the item to be dried based on the comparison between the present time measured by the clock 52 and the facility usage period retrieved from the memory 51, and the item determination means 53.
The time scheduler 50 is provided with a switching means 54 for switching the equipment for each item having different specifications depending on the item to be dried based on the output of the above.

[0006]

When the grain is received and starts to be dried and stored, the item discriminating unit 53 discriminates the grain item based on the comparison between the present time measured by the clock 52 and the facility use period stored in the memory 51, and the switching is performed. By means of the means 54, the switching of the equipment for each item having different specifications depending on the item to be dried is automatically performed. In this way, it is possible to eliminate the need for the operator to identify the item each time and perform the switching operation, and to simplify the operation accordingly, and to avoid improper operation due to mistakes or forgetting of the switching operation, and proper drying according to the item. It can be processed.

[0007]

EXAMPLE A grain drying facility shown in FIG. 1 comprises a grain receiving hopper 1, a grain receiving elevator 2, a weighing machine 3 for measuring the moisture and weight of the grain received, a loading elevator 4, a relay top conveyor 5, a mobile top. The NO. 3 connected to the dehumidifying air passage 9 through which the dehumidifying air sent from the conveyor 6, the air conditioner 7 and the fan 8 flows. 1-NO. 10 storage bins 10, a bottom conveyor 12 that receives grains discharged from the bottom of each storage bin 10 through an opening / closing shutter 11, and a first branch passage 14 on the loading elevator side via a transfer switching valve 13 and a second branch passage Rice selection machine 19, which is connected to 15 through a discharge elevator 16 and a selection switching valve 17, and which is provided on a rice selection route 18 leading to the input elevator 4, a rice selection route 19 and a wheat selection route and a wheat selection route 20. It has a selection machine 21 and a color selection machine 22. Each storage bin 10 has an empty bin sensor 23 for detecting an empty state and a level sensor 2 for detecting a full state.
4 and are provided.

The grain thus received is driven by the loading elevator 4 and the top conveyors 5 and 6 to store the storage bins 10.
And drying by blowing the dehumidified air, and after completing the one-step drying, the opening / closing shutter 11 and the bottom conveyor 12 are driven to move from the bin in which the grain is loaded to the empty bin, Grain transfer (rotation control) is performed via a route passing through the one branch passage 14 or a route passing from the second branch passage 15 toward the selected route side.

FIG. 2 is a control device for controlling the operation of the grain drying facility, which includes a microprocessor 41,
The measuring unit 3 and the sensors 23, 2 are connected to the input unit 42.
4, the switching valves 13, 17 to be controlled, the elevators 2, 4, 16, the conveyors 5, 6, 12, the air conditioner 7 and the fan 8 are connected to the output unit 43. Connected. Incidentally, 44 is a keyboard and 45 is a display.

As shown in Table 1 below, the control device configured as described above includes a memory 51 for storing facility usage periods classified according to items to be dried, a clock 52, a current time measured by the clock 52, and the memory 51. Item discriminating means 53 for discriminating the item to be dried based on the comparison with the facility use period taken out.
The time scheduler 50 is provided with a switching means 54 for switching the equipment for each item having different specifications depending on the item to be dried based on the output of the item discrimination means 53. Specifically, in the switching means 54, the weighing machine 3 is based on the difference between the rice and the wheat, and the difference in the finishing water content due to the drying of the both.
Selection switch valve 17 for selecting rice selection route 18 and wheat selection route 20 based on the difference in range selection and selection process
I'm trying to switch between.

[0011]

[Table 1]

Thus, as shown in FIG. 3, when the grain is received and the dry storage is started, it is determined whether the grain is rice or wheat based on the comparison between the present time and the facility use period. (Step a). In the case of rice, the range of the weighing machine 3 is switched to the rice specification (step b), and the selection switching valve 17 is switched to the rice selection route 18 side (step c). On the other hand, in the case of wheat, the range of the weighing machine 3 is switched to the wheat specification (step d), and the selection switching valve 17 is switched to the wheat selection route 20 side (step e).

In this way, it is possible to eliminate the need for the operator to discriminate the item each time and perform the switching operation, and the operation can be simplified accordingly, and the inappropriate operation due to the mistake or forgetting of the switching operation can be avoided, and the operation can be performed depending on the item. The proper drying process can be performed.

In the grain drying facility of the above embodiment, the air conditioner 7 was used to supply the dehumidified air to the storage bin 10, but the atmosphere may be used as it is without using the dehumidified air.

[0015]

As described above, according to the present invention, the item to be dried is discriminated based on the difference in the facility usage period, and the equipment for each item having different specifications is switched depending on the item to be dried. , It is possible to eliminate the need for the operator to discriminate the item each time and perform the switching operation of the equipment for each item, and the operation can be simplified accordingly, and the inappropriate operation due to mistake or forgetting of the switching operation can be avoided, and the item to be dried It is possible to perform an appropriate drying process according to the above.

[Brief description of drawings]

FIG. 1 is a schematic view of a grain drying facility according to the present invention.

FIG. 2 is a block configuration diagram of a control device provided in the grain drying facility.

FIG. 3 is a flowchart of a control device provided in the grain drying facility.

[Explanation of symbols]

3; weighing machine, 10; storage bottle, 17; selective switching valve, 1
8; rice selection route, 19; rice selection route, 20; barley selection route, 21; barley selection device, 22; color sorter, 50; time scheduler, 51; memory, 52; clock, 53; item discriminating means, 54 ; Switching means

Claims (1)

[Claims] 1. A control device for a grain drying facility, comprising a storage bin (10) for storing the received grain in a dry state, the memory (51) storing a facility usage period classified according to items to be dried, and a clock ( 52), an item discrimination means (53) for discriminating an item to be dried based on a comparison between the present time measured by the clock (52) and the facility use period taken out from the memory (51), and the item discrimination means (53). ), A controller for a grain drying facility, comprising: a time scheduler (50) having a switching means (54) for switching between items of equipment having different specifications depending on the item to be dried. .