JPH0861850A - Grain drying apparatus - Google Patents

Abstract

PURPOSE: To prevent grains with greatly different water content from being inserted into a storage bin having a stirring device by selecting any of storing/ drying means for drying grains up to a finishing water content only with rotation of the number of the storage bins and stirring/storing/drying means transferred to stirring and storage at the time the grains reach half dried water content. CONSTITUTION: Received high water content grains after passage through a load reception measuring unit 4 are divided for each predetermined amount, and poured in bins 11B, 11C. The poured thin layer grains are dried at a high drying rate, and the thin layered grains are dried up to finished water content only with rotation thereof. Further, the grains are transferred into an empty bin 11A at the time the grains properly reach half dryied water content although the drying rate of the thin layer state is not obtained where they are mixed and dried with newly received grains and dried grains using a stirring screw. Hereby, grains are dried without inserting greatly different water content grains into the stirring/storing bin.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates to a grain drying facility.

[0002]

2. Description of the Related Art In a cumulative stirring type storage bottle, it is an advantage that grains having different water contents can be put into the same bottle, but if there is a too large water difference, the quality is deteriorated. There is a problem that invites. The present invention aims to solve the above-mentioned problems by not putting grains having greatly different water contents into a storage bottle equipped with a stirring device.

[0003]

SUMMARY OF THE INVENTION According to the present invention, a storage / drying means for drying to a finishing water content only by rotation and a stirring storage when a semi-dry water content is reached by a set number of empty storage bottles. And a selection means for selecting these means.

[0004]

The function and effect of the invention: The grain of the moisture content of the cargo is controlled so that the grain is quickly finished to be semi-dried, and then accumulated to reduce the difference in moisture between the input grain and the accumulated grain. Therefore, since it is possible to dry the grain without adding the grains having greatly different water contents to the stirring storage bottle, it is possible to solve the above-mentioned problem that the quality is deteriorated.

Further, in order to secure a storage bin for drying the received grain, it is possible to positively utilize stirring to create an empty bin.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. The cargo receiving field 2 including the cargo receiving hoppers 1, 1 ... Is configured separately from other main equipment groups so as to form passages on both sides of the cargo receiving hoppers 1, 1 ... so that the transport truck can easily enter and leave. .

The rough hopper 3 and the load receiving and weighing machine 4 for receiving and weighing the grain are connected to the load receiving hopper 1 through a transport mechanism.
These are installed in close proximity to each other along with a sorting machine 5 and a rice hulling plant 6 that select received grain or dried grain, and are configured in the same building 10 as an operation room 7, a voluntary inspection room 8, a product storage area 9, etc. Has been done. Storage and drying bottles 11, 11, ... Are arranged in series in the building 10. In this embodiment, the left and right A, B, and C3 series × 6 bins are accommodated in the building 12 for about 50 tons per unit, for a total of 18 bins.

The bins 11A, 11B and 11C are shown in FIGS.
As shown in FIG. 4, the same type of rectangular bottle is used, the outer wall 11a is made of glass wool or the like as a heat insulating material, and the intermediate partitions 11b and 11c of the bottles are made of normal wall material. . The bottoms of the bottles 11A, 11B, and 11C have a flat sweep floor 13 shape, and a ventilation space 14 is formed below the bottom.

15A is an elevator for loading a storage bottle,
B and 15B are belt conveyor type stake conveyors,
The bottles 11A, 11B and 11C are provided on the upper side in the building 12. Sealing partition walls 16, 16 ... Are provided by a heat insulating material so that a space above the bin in which these conveyors 15B are disposed forms a space in the center and left and right in a cross section, and a floor material is provided in a central compartment 17 formed by this. 18 is stretched so that the compartment 17 can be used as an inspection passage. Each of the bottles 11A has a partition wall 16 for sealing,
A stake chute (not shown) is provided for 11B and 11C. Reference numeral 19 denotes a flight conveyor which is horizontally extended from the grain elevator discharge portion so that grain can be supplied to the staking conveyor 15. In addition, the above-mentioned stake conveyor 1
The reference numeral 5 indicates a structure in which movement of the grain in the longitudinal direction is controlled and grain can be supplied to a predetermined bottle.

For the six A-series bottles, two stirring screws 21a and 21b are provided for each bottle 11A.
To provide. These screws 21a and 21b are an example of the stirring device 21, and drive motors 22 and 22 are separately provided.
The support frame 23 of the screws 21a and 21b is configured to reciprocate back and forth along rails 24 and 24 provided at the upper end of the bottle 11, and the left and right screw intervals are maintained in the direction along the support frame 23. It is configured to reciprocate as it is, and the entire surface can be agitated by dividing the square bottle into right and left and moving in a zigzag or other predetermined pattern.

That is, the support frame 23 includes the left and right vertical frame portions 23.
a, 23a and front and rear lateral frame portions 23 provided to connect them
b, 23b, etc. are rigidly formed as an integral structure, of which the vertical frame portions 23a, 23a are provided with a rotary shaft 25 in a left-right linked manner. The rollers 26, 2 are provided at the left and right ends of the rotary shaft 25.
6 and is guided by the rails 24, 24 on the side wall of the bottle. Reference numeral 27 denotes a forward / reverse rotation motor that interlocks the rotary shaft 25 with forward / reverse rotation. The lateral frame portion 23b of the support frame 23,
A movable frame 28 having a length of about half the right and left length of the support frame 23 is placed on the reference numeral 23b via rollers 29, 29, ..., and is movable along the lateral direction of the support frame 23. Set up. Reference numeral 30 denotes a forward / reverse rotation motor in which the shafts of the rollers 29, 29 ...

Rotating vertical axes 31a and 31b are axially supported on the moving frame 28 at appropriate intervals, and stirring screws 21a and 21b are connected to the lower portions thereof in a detachable and rotationally interlockable manner. The pulleys 32a and 32b at the upper ends of the respective rotating vertical axes 31a and 31b are configured to rotate in a fixed direction by independent motors 22a and 22b, respectively. A movable frame 28 that can move to the left and right is placed on the support frame 23, and a motor is attached to the support frame 23.
Since it can be installed on the rail in a state where 1a and 21b are set, the installation can be simplified. Further, the stirring screws 21a and 21b can be brought closer to the side wall of the bottle as compared with the conventional configuration in which the driving devices for traveling are separately provided, and the stirring flow is improved.

In the above-mentioned A series, a stirring screw is provided, but in the B and C series, such a stirring screw is not provided and a diffusing device is provided in the feeding supply section. 34A and 34A are elevators for discharge rotation
, 34B, 34B ... are discharge conveyors for discharge and rotation, which are in the form of belt conveyors and are provided in positions corresponding to the wind tunnel 35 in the ventilation spaces 14, 14 ...

A blower chamber 36 is provided in a state of being connected to the building 12 for the bins 11A, 11B, 11C, and blowers 37, 37, ... Are arranged in connection with the inlet of the ventilation space 14 for each series. 38 are heating devices, and the blower 37 can supply hot air to the ventilation space 14 by operating the heating devices.
The operation room 7 is provided with an operation control unit 39, which has an operation control mechanism for each part and a setting input mechanism. As an input signal,
Each of the motors 27, 30 and 2 is used as a weighing signal of the cargo receiving and weighing machine 4, a detection value signal of a squeezing amount detector described later, and an output signal.
Each drive signal to 2a and 22b, etc. are also included.

As the operation mode of the bins, since the amount of sticking for each bin 11 can be arbitrarily set by obtaining the weighing information from the cargo receiving and weighing machine 4, the bins of the bins B and C are spread. A dry main form in which the grain is thinned to obtain a relatively high drying loss rate, and in the A series, grains that have reached or come close to the finishing moisture from the B and C series have been dried, Agitated and dried form that mixes and agitates with new consigned grain that has been added or is additionally loaded in the upper layer, and short-term storage of dried finished grains in all A, B, C series until hull shipment or The configuration is such that it can be stored for a long period of time and can be stored.

In each of the bottles 11A, the stirring screws 21a and 21b are structured to be able to stir and mix the entire surface of the bottle 11A while drawing a predetermined pattern while keeping a constant interval. In the vicinity of the stirring screws 21a, 21b, a sedimentation status detecting means, for example, ultrasonic grain type grain adhering amount detectors 40a, 40b are provided using the moving frame 28. The detection results of the stake amount detectors 40a and 40b are input to the operation control unit 39, and in comparison with the average stake amount line (b) based on the load receiving measurement information, the detection result of the detector 40 is the average value. The operation control unit 39 outputs a stop command signal to rotate when it falls below the stake amount line (a) and to stop the rotation when it is swelling to promote the swelling.

Reference numeral 41 denotes a circulation type grain dryer provided in a plurality of units, which is configured to be connected to the supply line from the load receiving and weighing machine 4 and each discharge line of the A to C series for grain supply.
In addition, the grains discharged are rice hulling plant and C series bottle 11C.
It is configured to be returned to and stored in. In the figure, 42 is a level meter, 43 is a thermometer, and 44 is a moisture meter.

Conventionally, in the drying by the storage bottle, in order to prevent unevenness in drying, it was necessary to keep the deposition height low and to perform rotation frequently. Therefore, a dry storage facility for paddy provided with a plurality of storage bins, that is, a facility of a form in which the A-series having a stirring device in the storage bins as described above and the B- and C-series of ordinary storage bins are combined. Explaining the operation method, at the initial stage of receiving the cargo, since the number of bottles has a margin, the pile height is thinly stretched and drying is performed by normal rotation.However, when the storage paddy is large, the paddy is stretched thinly. It becomes difficult to put in. At this time, the A series with a stirrer is received, piled up as thinly as possible, stirred and dried, and then stored as it is after the completion of drying.

Since there is no room in the number of bottles in the latter stage of receiving the load, at this time, an agitator is used to safely perform storage and drying with the same number of bottles. The operation of the above example will be described. The received high-moisture grain is the weighing machine 4
After passing through, etc., they are sorted by a predetermined amount and placed in the B or C series bins 11B and 11C. Here, the air blow blows the thin-layered grain at a relatively high drying rate. After one day and night, these are either empty bottle 1
Combined in 1B or 11C and continued to dry. Although the dryness reduction rate in the thin layer state cannot be obtained, the drying continues moderately, and when it reaches the vicinity of the scheduled water content, it is transferred into the A series empty bottle 11A. Here, new consigned grain has already been poured, and the grain is mixed with the dried grain and dried. That is, the motor 27 and the motor 30 move the support frame 23 back and forth while the moving frame 28 moves left and right to draw a predetermined pattern (FIG. 8) in plan view, and the stirring screw 21
a and 21b move, but at this time, the motors 22a and 2b
Since 2b also rotates together with the screws 21a and 21b to rotate, the grains are agitated in every corner, the grains having a different water content are mixed, and the air is blown from below to be dried to a predetermined moisture value.

Grains dried to a predetermined water content can be stored as they are in bottle 11A or bottles B and C. Before transferring the agitated and mixed grain to the hulling process, check the water content, if the grain has not been dried yet, or if the bottle needs to be emptied by urgent drying, etc. , Dryers 41, 41, ... , The number of bins required to receive a day according to the receiving plan +
Set the number of rotation bottles + the number of bottles required for stirring. First, the grain of the moisture content of the cargo is limited by the level meter or the cumulative weight of the cargo weighing machine to limit the amount of swelling per bottle so that it will be semi-dried by the next day.

Next, if the storage bin has a margin (the bin has a margin at the beginning of the cargo receiving period), the finish bin is dried as it is, and after the drying is completed, the deposit is carried out. When the number of empty bottles reaches the initially set number as the cargo is received, it will be transferred to the stirring storage mode when it becomes semi-dried. That is, when shifting to this stirring storage mode, the grains of the moisture content of the cargo are collected in the stirring storage bottle in a semi-dried state by rotating for one day. At this time, depending on the input water content at the time of transition, if the water content is within 18%, for example, the deposition height is 2 m or (if the deposition height is set from the bottom to the level 1, level 2, ... Level n) to level 2. Set as appropriate.
By setting in this way, the target drying rate can be secured, and the deposition height is limited by the input moisture. Even in the stirring storage mode, some rotation is performed to monitor the water content. At this time as well, the stacking height is limited while the stacking is gradually performed, and the bottle is controlled to be fully filled by the time when the drying is completed, so that the bottle is efficiently used.

[Brief description of drawings]

FIG. 1 is a front sectional view of a main part

FIG. 2 is a front sectional view of a bottle.

FIG. 3 is a side sectional view thereof.

[Figure 4] Facility outline flow chart

[FIG. 5] An enlarged view of the main part of the above

[Figure 6] Overall facility plan

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Receiving hopper, 2 ... Receiving yard, 3 ... Coarse selecting machine, 4 ... Receiving weighing machine, 5 ... Selector, 6 ... Hulling plant, 7 ... Operation room, 8
… Voluntary inspection room, 9… Product storage area, 10… Building, 11A, 1
1B, 11C ... Bottle, 12 ... Building, 13 ... Sweep floor, 14 ... Ventilation space, 15A ... Storage bottle loading elevator
, 15B ... conveyor for staking, 16 ... separating partition, 17
... compartment, 18 ... floor, 19 ... flight conveyor, 21
a, 21b ... Agitating screw, 22a, 22b ... Drive motor, 23 ... Support frame, 24 ... Rail, 25 ... Rotating shaft,
26 ... Roller, 27 ... Forward / reverse motor, 28 ... Moving frame, 2
9 ... Roller, 30 ... Forward / reverse rotation motor, 31a, 31b ... Rotation vertical axis, 32a, 32b ... Pulley, 34A ... Elevator for ejection rotation, 34B ... Ejection conveyor, 35 ...
Wind tunnel, 36 ... Blower room, 37 ... Blower, 38 ... Heating device, 39 ... Operation control part, 40a, 40b ... Intake amount detector, 41 ... Circulation type grain dryer, 42 ... Level meter, 43 ...
Thermometer, 44 ... Moisture meter

Claims (1)

[Claims] 1. According to the set number of empty storage bins,
Grain provided with storage / drying means for drying to finish moisture only by rotation, stirring / storage / drying means for shifting to stirring storage when semi-dry moisture is reached, and selection means for selecting these means Drying facility.