JPH0240242A - Automatic grain rotating equipment between grain storage tanks in grain drying regulation plant - Google Patents

Abstract

PURPOSE:To evade long working hour and to utilize the title equipment with high efficiency by successively deciding a rotation execution tank with a determiner at every completion of one-time rotation and automatically transferring grain with a grain carrier according to decision. CONSTITUTION:Combination of a 1st-time rotation tank is decided by a rotation execution tank determiner C and rotation is executed by a grain carrier D on the basis of the signal. In other words, the upper outlet of an elevator 17 is connected with the initial side of a feed conveyor 19 by changing over a direction changeover valve 41. Further a distributor 43 is moved just above a storage tank 5 becoming a feed tank and the distributor 43, the feed conveyors 19, 15 and the elevator 17 are started. Simultaneously the blowing shutters of the feed tank 5 and a discharge tank 1 are closed. Then grain is discharged on the conveyor 15 by opening the discharge shutter 31 and fed to the feed tank by the distributor 43 via the elevator 17 and the conveyor 19. Therein the shutter 21 is opened by detection free from grain of a grain sensor S to perform blowing and the residual grain is discharged to the outside of the tank.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an improvement in a grain drying and conditioning plant that collects grains from a large number of producers and processes them in large quantities.

In this type of grain plant, grains such as paddy and wheat received from producers are weighed and then stored in storage tanks. A plurality of storage tanks are installed, and warm air or room temperature outside air is supplied from the bottom of each tank to pre-dry the stored grains.

However, because the tank has a large capacity, air cannot be distributed completely evenly, which tends to cause the grain to become stuffy or dry unevenly.

In order to avoid such quality deterioration during storage, the entire grain is stirred by appropriately transferring the grain in the tank to another storage tank.

This movement of grain between tanks is called rotation, and the present invention is an invention that automatically performs this rotation.

(Conventional technology) Conventional grain rotation involves deciding which of multiple grain storage tanks should be used: the discharge tank to which the grain should be transferred, and the filling tank to receive the grain from the discharge tank. Manually operate grain conveying equipment, such as a belt conveyor or elevator, to transfer grain from the discharge tank to the filling tank.

(Problem to be solved by the invention) By the way, the time required for one rotation is longer as the tank capacity is larger and the amount of grain is larger, and there is a limit to the number of rotations that can be performed at the same time, so rotation should be carried out. If there are a large number of tanks, it will take a long time to complete all rotations.

Conventionally, after one rotation, the grain conveying equipment was manually operated to carry out the next rotation.
There were problems with extremely poor efficiency, such as workers being tied up for long periods of time and forced to work long hours at night until all rotations were completed.

The present invention improves this problem by setting the grain storage tank to be rotated first, and then automatically rotating the tank sequentially, thereby freeing the worker who is working during the rotation. The purpose is to improve efficiency.

(Means for Solving the Problems) As shown in FIG. 1, the present invention provides a rotation setting device A for setting which tank should be rotated among grain storage tanks, and a rotation setting device A for setting which tank should be rotated among grain storage tanks. A rotation rank determiner B that determines the order of rotation execution, and a rotation execution tank determiner C that determines the tanks that will actually execute the rotation.
The grain transport equipment that moves grain from tank to tank detects whether or not there is grain in the grain transport route.
If there is no rotation completion signal, the grain sensor S outputs a rotation completion signal to the rotation execution tank determination unit C.

(Function) Operate the discharge tank setting switch and filling tank setting switch of rotation setting device A to select the discharge tank from which grain should be discharged from the grain storage tank and the tank to which the discharged grain should be loaded. Set up each tank.

Rotation rank decider B is rotation setter A
Based on the output of , the rotation combinations and execution order are determined. This determines the combination of the discharge tank and the filling tank to which the grain is to be transferred, and determines the execution order of which combination is to be executed first.

Then, from among the combinations of tanks in the execution order, those whose rotation has already been completed are removed, and among the remaining combinations, the combination with the highest order is determined as the combination to which the rotation should actually be executed in the rotation execution tank determination device C.

Then, according to this decision, the grain in the discharge tank is transferred to the filling tank by a grain conveying device.

When there is no grain on the conveyance path, the grain sensor S detects this and outputs a rotation completion signal, and based on this signal output, the rotation execution tank determiner C determines the next combination as the combination to be rotated. do. As a result, the grains in all set discharge tanks are transferred to other tanks by repeating the rotation in sequence.

(Example) Next, embodiments of the present invention will be described with reference to the drawings.

Numbers 1 to 10 respectively indicate grain storage tanks of a grain drying and conditioning plant. Among these ten tanks, adjacent tanks 1 to 5 are the first series, and 6 to 10 are the second series.

Air duct running under the floor of the tank for each series 11.12
A blower 13.14 is attached to one end of the air blower 13.14, and the air is sent into the tank through the porous floor plate of each tank 1 to 10 and the duct 11.1.
Air blower shutters 21 to 30 are provided at the connection portions of No. 2, respectively.

Discharge shutters 31 to 40 are attached to the discharge ports opening at the bottom of each tank 1 to 10, and a first conveyor 15 for discharge rotation is installed to the discharge ports of the tanks 1 to 5 of the first series, and A second conveyor 16 for discharge rotation is connected to the discharge ports of the tanks 6 to 10, respectively.

The terminal end of the first conveyor 15 is connected to the lower inlet of the first elevator 17 for discharge port-tehashigon, and the second conveyor 1
6 is connected to the lower inlet of the second elevator 18 for discharge rotation.

S is a grain sensor interposed at these connection points to detect the presence or absence of grains. The grain sensor S may be one in which a photoelectric conversion coupler is provided facing each other across the conveyor drop opening to optically detect the falling grains, or a piezoelectric conversion element may be placed at a position facing the conveyor drop opening. It may be attached to a piezoelectric transducer, and the falling grains collide with a piezoelectric transducer, and the collision pressure is converted into an electric signal and detected.

Above the upper openings of tanks 1 to 5 of the first series, there is a first
A conveyor 19 is installed, and the second series of tanks 6 to 10
A second conveyor 20 for tensioning is installed above the upper opening.

The upper outlets of the first discharge rotation elevator 17 and the second elevator 18 can be switched to the starting ends of the first conveyor 19 and the second conveyor 20 for loading, respectively, via the directional switching valves 41 and 42. Connecting.

43.44 is a distributor that moves on the tensioning conveyor 19.20 to an arbitrary position above the tank and drops and supplies the grains from the conveyor to the storage tank. This distributor has a structure as described in, for example, Japanese Utility Model Publication No. 55-5542, and has rotary blades that uniformly spread the grains, and a blower that blows away the grains on the conveyor on the rotary blades. .20
This blower blows off all the grains flowing on the conveyor from the conveyor, and the rotary blades spread the grains to the tanks 1 to 1.
Supply evenly within 10 minutes.

Grain received from producers is subjected to rough sorting 411 (not shown) to remove impurities, and then transferred to a weighing machine (not shown).
Weigh with. After weighing, the grain is loaded into each tank 1 to 10 via the first and second loading conveyors 19.20 using a loading elevator (not shown), and air is sent from under the floor of the tank using a blower duct 11.12. Pre-drying the grain during storage.

Here, the storage tank that accommodates the grains that need to be rotated out of the stored grains is referred to as the discharge tank, and the tank that receives the grain taken out from the discharge tank is referred to as the filling tank.

Then, which tank among the storage tanks 1 to 1O is to be used as the discharge tank and which is to be used as the filling tank is set and input using the setting switch board of the rotation setting device A. A tank with an empty interior is selected by observing the inside of the tank using a monitor television camera installed above the storage tanks 1 to 1O.

Figure 3 shows the case of rotation within the same series.
Showing the first setting switch board for ejection/filling,
Figure 4 shows the second setting switch board for the discharge/filling tank when rotating between different series, 45
-50 are push button type setting switches for setting the discharge tank or the filling tank.

Next, a case where rotation within the same series is performed using the first setting switch board shown in FIG. 3 will be described.

For example, among the first series of discharge tank setting switches 45, switches No. 1, No. 2. And press No, 3,
Also, among the staked tank setting switches 46, switch N0
When 05 is pressed, rotation setter A outputs an ON signal for each switch, and based on this, rotation order determiner B determines the rotation execution order as follows.

1st rotation discharge tank 1 → filling tank 5 2nd rotation discharge tank 2 → filling tank l 3rd rotation discharge tank 4 → filling tank 2 Then, the rotation execution tank determiner C determines the above execution order. The tank combination with the highest priority, that is, the first rotation, is determined as the combination to be executed, and based on this determination signal, the grain conveying equipment is driven to execute the rotation.

This rotation process will be explained according to the flowchart of FIG.

First, the directional switching valve 41 is switched to connect the upper outlet of the first discharge rotation elevator 17 to the starting end side of the first conveyor 19 for loading.

Then, the storage tank 5 to be a tank is filled with a distributor 43.
When it moves directly above the first distributor 43, the first conveyor for tensioning 19. The first conveyor 15 for discharge rotation and the MI elevator 17 for discharge rotation are started, and the ventilation shutters of the storage tank 5 to be the filling tank and the storage tank 1 to be the discharge tank are closed.

Then, the discharge shutter 31 of the discharge tank is opened to discharge the grain onto the conveyor 15 below, and the grain is transferred to the elevator 17.
, via the conveyor 19 and into the filling tank by the distributor 43.

During this process, when the grain sensor S detects that there are no grains, the ventilation shutter 21 of the discharge tank is opened to blow air into the tank, and the remaining grains are discharged from the tank by the wind force.

After all the grains in the discharge tank are discharged and transferred to the filling tank, the grain sensor S again detects that there is no grain.

Based on this detection output, the distributor moves directly above the storage tank 1, which is to become the filling tank for the next second rotation, and executes the second rotation. (The storage tank 1 is empty after all the grains inside it have been discharged by the first rotation.) In this way, when the third rotation is completed, all the equipment is stopped.

The rotation within the second series is also similar to the case within the first series described above.

Next, a case in which rotation between different series, that is, cross rotation is performed using the second setting switch board shown in FIG. 4 will be described.

There are two types of cross-rotation: one-way crosses in which grain moves from one series to another, and two-way crosses in which grains move between series.

In the case of one-way cross, switch the directional control valve 41 or 42 of the series to which the discharge tank belongs, and switch the upper outlet of the elevator to the loading conveyor 1 of the series to which the discharge tank belongs.
Connect to 9 or 2G.

Thereby, the grain discharged from the discharge tank is transferred to the pitching tank of the other series.

In the case of a two-way cross, the directional switching valves 41, 42 of the first and second series are both switched to the tensioning conveyor 19 or 20 side of the other series.

In the case of a one-way cross, the discharge rotation conveyor and discharge rotation elevator on the loading side remain stopped, but in the case of a two-way cross, all conveyors and elevators on the discharge and loading sides are driven. Rotate grains.

For example, in the second setting switch board in FIG. 4, among the discharge tank setting switches 49, the first series switch N
001, No. 2 and No. 3, and the second series switches N007, N008 and No. 9, and also press the first series switches No. 4 of the staked tank setting switches 50.
The case where the second series switch N006 is pressed will be explained.

In this case, the rotation order determiner B determines the rotation execution order in the order of tank numbers as follows.

1st rotation discharge tank 1 → stakeout tank 6 Discharge tank 7 → stakeout tank 4 $2 rotation discharge tank 2 → stakeout tank 7 Discharge tank 8 → stakeout tank 1 3rd rotation discharge tank 3 → stakeout Tank 8 Discharge tank 9 → Filling tank 2 In this way, in the case of a two-way cross, grain is transferred from the first train to the second train in one rotation, and at the same time grain is transferred from the second train. Grain is also transferred to the first line.

In this case, there will be a difference in the time required for rotation between trains depending on the amount of grain to be transferred, but if
It goes without saying that even if the rotation to the series is completed early, it is necessary to wait for the next rotation until the rotation from the second series to the first series is completed.

Also, if there is a mistake in the rotation setting, such as forgetting to press the tank setting switch, it is a good idea to detect this and activate a lamp or buzzer.

(Effects of the Invention) In short, according to the present invention, when the storage tank to be rotated is set by the rotation setter A, the rotation order determiner B determines the execution order. Each time one rotation is completed, this is detected by the grain sensor, and the rotation execution tank determining unit C sequentially determines the tanks to be rotated.

Then, based on this decision, the grain handling equipment moves the grain from tank to tank and performs the rotation automatically, so if there are many tanks to rotate and it takes a long time to complete all the rotations. In addition, workers are freed from long hours of work that often extends into the middle of the night, and tanks and grain transport equipment are operated efficiently according to a predetermined optimal order.
This has the effect of enabling highly efficient equipment usage.

[Brief explanation of the drawing]

FIG. 1 is a functional block diagram of the present invention, and FIG. 2 is a functional block diagram of the present invention. A system diagram of the main parts of a grain drying adjustment plant in which the present invention is implemented, FIG. 3 is a front view of the first setting switch board of the rotation setting device in the embodiment of the present invention, and FIG.
FIG. 5, a front view of the settings switch board, is a flowchart of rotation in an embodiment of the present invention. A is a rotation setting device, B is a rotation order determining device, C is a rotation execution tank determining device, D is a grain conveying device, S is a grain sensor, 1 to 10 are grain storage tanks, 21 to 30 are blower shutters, 31 to 40 1 is a discharge shutter, 11 and 12 are ducts, 13 and 14 are blowers, 1
7 is an i1 elevator for discharge rotation, 18 is a second elevator for discharge rotation, 41 and 42 are directional control valves, and 43 and 44 are distributors. Figure 1 Patent applicant: Iseki Agricultural Machinery Co., Ltd. Agent: Tobe Maki (and 3 others)

Claims (1)

[Scope of Claims] The received grain is stored in a plurality of grain storage tanks, air is blown into these grain storage tanks to pre-dry the grain, and then main drying is performed in a dryer in the next step, and the dried grain is desorbed. ■In the grain drying and conditioning plant for sorting and shipping, a discharge tank setting switch is used to set the discharge tank among the grain storage tanks to which the grain in the tank should be discharged, and a charging tank to which the discharged grain should be loaded. a rotation setting device having a holding tank setting switch; a rotation order determining device that determines the execution order of the rotation in which grain in the discharge tank should be transferred to the holding tank based on the output of the rotation setting device; and the rotation order a rotation execution tank determination device that determines a combination of a discharge tank and a filling tank to be rotated from among the highest rankings determined by the determination device excluding combinations for which rotation has been completed; and the rotation execution tank determination device. a grain conveying device that moves grain from a discharge tank to a filling tank based on the output of the grain conveying device; and a grain sensor that outputs a rotation completion signal to the rotation execution tank determiner when there is no grain in the conveyance path of the grain conveying device. and an automatic grain rotation device between grain storage tanks.