JP2874681B2 - Automatic grain rotation apparatus in grain drying and preparation facility - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a plant for preparing and drying cereal grains, which collects cereals from a large number of producers and processes them in a large amount. In this type of grain plant, grains such as paddy and barley received from a producer are weighed and then temporarily stored in a storage tank. A plurality of storage tanks are provided, and warm air or room temperature outside air is supplied from the bottom of each tank to pre-dry the grains during storage. However, since the tank has a large capacity, the air is not completely uniform, and the grain is likely to be stuffy or uneven in drying.

In order to avoid such quality deterioration during storage,
Conventionally, the whole grain is agitated by appropriately transferring the grain in the tank to another storage tank. The movement of grain between tanks is called rotation.
The present invention automatically performs this rotation.

[0003]

2. Description of the Related Art A conventional grain rotation system determines which of a plurality of grain storage tanks is a discharge tank for transferring grain and a filling tank for receiving grain in the discharge tank. Then, the grain conveyor was manually operated such as a belt conveyor or an elevator to transfer the grains from the discharge tank to the filling tank.

[0004]

By the way, one row
The time required for the rotation is longer as the tank capacity is larger and the amount of grain is larger, and the number of rotations that can be performed simultaneously is limited, so the number of tanks to be rotated is larger. In this case, it takes a lot of time until all rotations are completed.

Conventionally, after one rotation, the grain conveyor is manually operated to execute the next rotation. Therefore, an operator is required until the rotation is completed. There was a problem that the efficiency was remarkably poor, such as being restrained for a long time and forced to work long hours at night. The present invention has been made to solve this problem. When the grain storage tank to be rotated is initially set, the rotation is automatically and sequentially executed. A first object is to release the restraint of the middle worker and improve the work efficiency.

It is a second object of the present invention to surely detect that a grain is being rotated and to perform the rotation operation accurately.

[0007]

According to the present invention, the following technical measures have been taken to solve this problem. That is,
The received grains are stored in a plurality of grain storage tanks, and the grains are pre-dried by blowing to the grain storage tanks, then main-dried by a dryer in the next process, and the dried grains are de-sorted and shipped. In the drying preparation facility, among the grain storage tanks, a discharge tank setting switch for setting a discharge tank for discharging grains in the tank, and a setting tank setting switch for setting a setting tank for setting the discharged grains. A rotation setting device having a rotation determining device for determining the execution order of rotations in which grains in the discharge tank are to be moved to the filling tank based on the output of the rotation setting device.
A rotation ranking determiner, and a discharge tank which is to be rotated more than a rotation rank determined first by the rotation ranking determiner, excluding a rotation completed combination. A rotation execution tank determiner for determining a combination of the rotation execution tank determiner, and a grain transfer device for transferring grain from the discharge tank to the expansion tank based on the output of the rotation execution tank determiner. A grain sensor for outputting a rotation completion signal to the grain rotation execution tank determiner when there is no grain in the transport path of the grain transporting device, wherein the grain sensor is configured to control the discharge tank. A conveyor for discharging grains provided at the lower part of the conveyor, and an elevator for lifting the grains transferred by the conveyor for discharging grains.
The automatic grain rotation device is provided between the automatic grain rotation device.

[0008]

By operating the discharge tank setting switch and the setting tank setting switch of the rotation setting device A, the discharge tank from which the grains are to be discharged from the grain storage tanks and the discharged grains should be set. Set the diversion tank. The rotation order determiner B determines a combination of rotations and an execution order. As a result, the combination of the discharge tank and the filling tank for transferring the grain is determined, and the execution order of which combination is executed first is determined.

[0009] Then, the rotation-completed tank combination is removed from the combination of the tanks of the execution order, and the first combination of the remaining combinations is actually determined by the rotation execution tank determiner C. decide. Then, in accordance with this determination, the grains in the discharge tank are moved to the filling tank by the grain transport device D.

If there is no grain in the transport path, the grain sensor S detects this and outputs a rotation completion signal,
Based on this signal, the rotation execution tank determiner C determines the next combination of ranks as the combination to be rotated. Thus, the rotation is sequentially repeated, and the grains of all the set discharge tanks are transferred to another tank.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. Reference numerals 1 to 10 denote grain storage tanks of the grain drying and preparation plant. Of these 10 grain storage tanks, 1 to 5 storage tanks arranged in order are the first series,
The storage tanks No. to No. 10 are a second series.

Air blow ducts 11 and 12 that pass under the floor of the tank are provided for each series, and blowers 13 and 14 are attached to one end of the blow ducts 11 and 12, and the air blown from the blowers 13 and 14 is supplied to each storage tank 1. It is configured to pass through a perforated floor plate and into the tank. Blow shutters 21 to 30 are provided at connection portions between the floor plates of the storage tanks 1 to 10 and the blow ducts 11 and 12, respectively.

[0013] Discharge shutters 31 to 40 are attached to the discharge ports opened to the bottoms of the tanks 1 to 10, and the discharge ports of the first series of storage tanks 1 to 5 are provided with discharge rotation first. The conveyor 15 is moved from the second storage tank 6 to
The discharge outlets 10 are connected to second conveyors 16 for discharge rotation. The end of the first conveyor 15 for discharge rotation is connected to the first elevator for discharge rotation.
The second end of the second conveyor 16 for discharge rotation is connected to the lower entrance of the discharge rotation
It is connected to the lower part of the elevator 18.

Reference symbol S denotes these connection points, in other words, the first and second conveyors 15 and 1 for discharge rotation.
6 and first and second elevators 1 for discharge rotation
The grain sensors provided at the connection points 7 and 18 detect the presence or absence of grains. The grain sensor S may be provided with photoelectric conversion couplers facing each other with the dropping port of the conveyor interposed therebetween, and may optically detect the falling grains,
The piezoelectric conversion element may be provided at a position facing the falling port of the conveyor, and the falling grains may collide with the piezoelectric conversion element, and the collision pressure may be converted into an electric signal and detected.

In any case, the grains discharged from the conveyor and transferred to the elevator can be directly detected. In addition, a first conveyer 19 is installed above the upper openings of the storage tanks 1 to 5 of the first series.
A second conveyer 20 is installed above the upper openings of the storage tanks 6 to 10 of the series.

And a first elevator for discharge rotation.
The upper outlets of the first and second elevators 17 and 18 are connected to the first conveyor 19 for insertion via the directional switching valves 41 and 42, respectively.
The starting end of the second conveyor 20 (in FIG. 2, the starting end is on the left side,
The right side is switchably connected to the terminal part. 43, 44
Moves above the conveyors 19 and 20 to a position above an arbitrary storage tank, and transfers the grains of the conveyor to the storage tanks 1 to
This is a distributor for dropping and supplying to the apparatus 10.

The distributors 43 and 44 are provided, for example, in
In the structure as described in JP-A-5-5542, a rotor is provided which uniformly diffuses grains, and a blower which blows off grains on a conveyor is provided on the rotor, so that grains flowing on the conveyor are blown by the blower. All of them are blown down from the conveyor, diffused by the rotating blades, and supplied uniformly into the storage tanks 1 to 10.

The grain received from the producer is weighed by a weighing machine after removing the foreign matter by a roughing machine (not shown). After the grains are weighed, the first and second conveyors 19, 20 for embedding by an embedding elevator not shown.
After that, the grain is put into each of the storage tanks 1 to 10 and air is sent from below the floor of the storage tanks 1 to 10 by the ventilation ducts 11 and 12 to pre-dry the grains during storage.

Here, among the grains being stored, a storage tank containing grains that need to be rotated is referred to as a discharge tank,
The storage tank on the side that receives the grain taken out from the discharge tank is referred to as the filling tank. Of the storage tanks 1 to 10,
Which storage tank is to be used as the discharge tank or the expansion tank is set by the setting switch board of the rotation setting unit A.

The storage tank is monitored by a monitor television camera (not shown) installed above the storage tanks 1 to 10 to select an empty storage tank by observing the inside of the storage tank. FIG. 3 shows a first setting switch board of the discharge / entrance tank when rotation is performed within the same system. Code 45
Reference numeral 50 denotes a push-button setting switch for setting a discharge tank or a sticking tank.

Next, a description will be given of a case where a grain rotation operation is performed within the same system using the first setting switchboard of FIG. For example, among the discharge tank setting switches 45 in the first series, the switch NO. 1, NO. 2, NO. 3
Is pressed, and the switch NO. When the switch 5 is pressed, the ON signal of each switch is output to the rotation setting device A.
An order ranking determiner B determines the order of execution of the grain rotations.

That is, the first rotation is performed from the discharge tank 1 to the expansion tank 5, the second rotation is performed from the discharge tank 2 to the expansion tank 1, and the third rotation is performed. The rotation from the discharge tank 3 to the expansion tank 2 is performed, and the rotation execution tank determiner C determines the first one of the above-mentioned execution orders, that is, the combination of the first rotation tank. The combination to be executed is determined, and based on the determined signal, the grain transport device D is driven to execute rotation.

The rotation process is shown in the flow chart of FIG.
The description will be made according to the chart. First, the directional control valve 41 is switched (step S1).
The upper outlet of the first elevator 17 for the tension is connected to the starting end of the first conveyor 19. And the distributor 43
(Step S)
2), distributor 43, first conveyor 19 for insertion, discharge roller
The first conveyor 15 for the rotation and the first elevator 17 for the discharge rotation are started (step S3).

Then, the air-blowing shutters 21 and 25 of the storage tank 5 to be the insertion tank and the storage tank 1 to be the discharge tank are closed (step S4). Then, the discharge shutter 31 of the discharge tank 1 is opened to discharge the grain to the first discharge rotation first conveyor 15 below, and this is discharged to the discharge rotation first elevator 17 and the tension. It is inserted into the insertion tank 5 by the distributor 43 via the first conveyor 19 for insertion. During this process, when the grain sensor S detects that there is no grain, the blower shutter 21 of the discharge tank 1 is opened to blow air into the storage tank 1 (steps S6 and S7), and the grains remaining by the wind force are stored in the storage tank 1 Discharge outside.

After all the grains in the discharge tank 1 have been discharged and transferred to the filling tank 5, the grain sensor S detects that there is no grain again. Based on this detection, the distributor 43 is moved to a position directly above the storage tank 1 which is to be a stowage tank for the next second rotation (step S14).
Execute the second rotation. (Storage tank 1
In the first rotation, all the grains inside are discharged by the first rotation, leaving an empty tank. In this way, when the rotations up to the third rotation are sequentially completed, the operations of all the devices are stopped (step S1).
3). The rotation in the second stream is the same as that in the first stream.

[0026]

According to the present invention, the received grains are stored in a plurality of grain storage tanks, the grains are blown to the grain storage tanks, and the grains are pre-dried.
In a grain drying / preparing facility for desalinating and shipping dried grains, a discharge tank setting switch for setting a discharge tank for discharging grains in the tank among the grain storage tanks, and inserting the discharged grains. A rotation setting device having a setting tank for setting the filling tank, and a rotation for moving the grains of the discharge tank to the filling tank based on the output of the rotation setting device. A rotation order determiner for determining an execution order of the operation;
The combination of the discharge tank and the squeeze tank, which should be rotated, is determined by the rotation rank determiner from the rank determined first by the rotation rank excluding the combination whose rotation has been completed. A rotation execution tank determiner to be determined, a grain transport device for transferring grain from a discharge tank to a filling tank based on an output of the rotation execution tank determiner, and a transport route of the grain transport device If there is no grain in the grain rotation execution tank determiner,
A grain sensor for outputting a cereal completion signal, the grain sensor comprising: a grain discharging conveyor provided at a lower portion of the discharge tank; and an elevator for lifting the grains transferred by the grain discharging conveyor. If the storage tank to be rotated is set by the rotation setting unit A, the execution order is determined. The container B is determined.

Then, the rotation executing tank is sequentially determined by the rotation executing tank determiner C. In accordance with this determination, the grain transport device D automatically moves the grain from tank to tank and performs rotation automatically. Therefore, the number of tanks to be rotated is large, and all rotations are performed. Even when it takes a long time to complete the process, workers are often free from long hours of work at midnight, and tanks and grain transport equipment are operated efficiently according to a preset optimal order. Highly efficient equipment utilization becomes possible.

Further, in the present invention, a grain sensor for detecting a rotation completion signal is provided with a grain discharging conveyor provided at a lower portion of a discharge tank and a grain transferred by the grain discharging conveyor. Since it is configured to be provided between the elevator and the elevator, it is possible to accurately detect whether or not the grain to be rotated is moving properly, and to properly dry the grain while preventing deterioration of the grain. It can be carried out.

[Brief description of the drawings]

FIG. 1 is a functional block diagram.

FIG. 2 is a system diagram of a main part of a grain drying and preparing plant.

FIG. 3 is a first setting switchboard of a rotation setting device.
FIG.

FIG. 4 is a flowchart of a rotation.

[Explanation of symbols]

 Reference Signs List A rotation setting device B rotation order determination device C rotation execution tank determination device D grain transport device S grain sensor 1-10 grain storage tank 11, 12 blow duct 13, 14 blower 15 First conveyor for discharge rotation 16 Second conveyor for discharge rotation 17 First elevator for discharge rotation 18 Second elevator 41, 42 for discharge rotation Direction switching valve 43, 44 Distributor

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) F26B 17/14 F26B 25/00 B02B 1/02

Claims (1)

(57) [Claims] Claims 1. A received grain is stored in a plurality of grain storage tanks, and is blown to the grain storage tank to pre-dry the grains, followed by main drying by a dryer in the next step, and de-screening of the dried grains. In the grain drying / preparing facility to be shipped after shipment, a discharge tank setting switch for setting a discharge tank for discharging the grains in the tank from among the grain storage tanks, and a setting tank for setting a filling tank for filling the discharged grains. A rotation setting device having a setting tank setting switch, and an execution order of rotations in which grains in the discharge tank are to be moved to the filling tank based on an output of the rotation setting device. The rotation should be executed from the rotation order deciding unit and the order of precedence excluding the combinations for which rotation has been completed among the order of deciding by the rotation order deciding unit. Exhaustion A rotation execution tank determiner for determining a combination of a tank and a filling tank, and a grain transfer device for transferring grain from a discharge tank to a filling tank based on an output of the rotation execution tank determiner And a grain sensor that outputs a rotation completion signal to the grain rotation execution tank determiner when there is no grain in the transport path of the grain transport device, wherein the grain sensor is configured to discharge the grain. A grain discharge conveyor provided at the bottom of the tank,
An automatic grain rotation apparatus provided between an elevator for lifting grains transported by the grain discharge conveyor.