JPH049588A - Feed control device in grain dryer - Google Patents

Abstract

PURPOSE:To simplify feed operation in conformity with the amount of fed grains by installing a dry control section based on a switch over control system comprising standard mode which dries grains fed in a storage section and double mode which dries grains fed in the storage section and a cold discharge tank. CONSTITUTION:A cold discharge tank 5 is mounted on a grain dry section 4. A dry control section comprises a designation switch which changes over the standard mode which dries grains fed in a storage section 1, returning the grains to the storage section 1 by way of a ventilation dry section, and a circulation mechanism section, and the double mode which dries the grains fed in the storage section 1 and a cold discharge tank 5, returning the grains to the cold discharge tank 5 by way of the ventilation dry section and the circulation mechanism section, a first feed switch which takes charge of grain feed to the grain dry section 4, and a second feed switch which takes charge of grain feed to the cold discharge tank 5. The grains are fed into the storage section 1 and the cold discharge tank 5 based on the double mode. This construction makes it possible to satisfy the installation space only with a section occupied by a drying machine frame and moreover switch over grain feed based on the standard amount and the large amount of grain feed and hence facilitate the operation.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a tensioning control device in a grain drying device.

[Prior Art and Problems to be Solved by the Invention] After drying harvested grain using a combine harvester, etc., if the hulling operation cannot be performed immediately or if the grain temperature has not reached a predetermined temperature or lower, the dried grain may be dried for a predetermined period of time. It is necessary to store it. By the way, if this is used instead of the storage section of the grain dryer, the new grain V and drying will be hindered.2 For this reason, a cooling tank is installed at the top of the grain dryer, and the grain in the drying path F is cooled by this cooling tank. Instead of being transferred to the tank side, it was temporarily stored (for example, Japanese Patent Laid-Open No. 145874/1983).

By the way, in this form, it is only useful for cooling and storing grains that have finished drying, but the switching means is configured to allow grains to flow from the cooling tank to the grain drying section. The undried #2 material was also placed on the side of the cooling tank, and the grain was circulated between the dryer side and the side of the cooling tank to ensure efficient grain drying.

However, when multiple functions are added in this way, the driving operations, especially the tensioning driving operations, tend to become complicated.

[Means to solve the problem]

This invention attempts to eliminate the above-mentioned drawbacks while reducing the installation area and ensuring expansion of the slag capacity. Stream 1 from the storage section 2; ventilation drying section 2 for applying drying air to the grains; A cooling tank 5 is placed in the grain drying section 4 which is composed of a grain transfer mechanism section, etc.; It has a switching valve 17 that quickly switches the transfer to either direction, and a discharge transfer gutter 26°2 at the lower part of the side of the cooling tank 5 for discharging the grain stored in the tank to the outside of the machine.
In the grain drying apparatus, the grains in the cooling tank 5 are configured to be able to flow into the storage section 1 by means of opening the bottom valve 30 of the grain drying device. 2. Storage part 1 via circulation mechanism part
Switching between a standard mode in which the grains are dried while being reduced to water, and a double mode in which the grains loaded into the storage section 1 and the cooling tank 5 are dried while being returned to the cooling tank 5 through the ventilation drying section 2 and the circulation mechanism section. Designation switch 56. A first loading switch 43 that controls loading of grain into the grain drying section 4. Cooling tank 5
A second loading switch 53 is provided to control the loading of grain into the storage section 1 and cooling tank 5 based on the double mode drying operation by the designated switch 56 and the operation of the first loading switch 43.
8 <- "- switching valve" 7. This is a structure of a tensioning control device in a grain drying apparatus configured to switch the bottom valve 30.

In addition, the drying control unit is provided with a 1-limit function for restricting the operation of the second tensioning switch 53 when the designation switch 56 is set to the 2x mode. The grain drying apparatus according to the first aspect of the present invention is provided with a tensioning control device limiting function.

[Operation and effect of the invention]

When the grain stored in the storage section is flowing down the drying line, a powder storage tank is placed on the top of the grain dryer frame, so the dried grain is supplied through the circulation machine catch and temporarily stored. This has the advantage that the only installation space required is the area occupied by the dryer frame. However, between the grain storage tank and the storage section of the grain dryer, the circulation mechanism section of the discharge transfer gutter has a switching means to transfer the dried grains to either the storage section of the grain dryer or this grain storage tank. In addition, a discharge transfer gutter for discharging the grain inside the tank to the outside of the machine is provided in the side part of the storage tank, and the grain flow 1 to the storage part is caused by the opening means on the side of this. Since the grain storage tank is configured to function as an auxiliary storage section during grain drying, the elevator, etc. that is used to circulately transport the grain from the grain storage tank to the storage section 1 of the grain dryer. The elevator mechanism can be omitted, and the elevator can be configured as a single elevator mechanism.

However, when placing undried grains, a combination of the designated switch 56 and the first placing switch 46 allows the standard @
It is easy to operate as it can be sorted and staked out for small quantities and large quantities.When the designated switch 56 is set to double drying mode, it can be used for individual pitching to the cooling tank 5 side. This restricts the operation of the second tensioning switch 53, which has the effect of preventing the mixing of different types of grains, and is easy to operate.

〔Example〕

An embodiment of this invention will be described based on the drawings.

The figure shows a grain receiving pit A in a building with a target drying and preparation device, and a plurality of grain drying devices B, B... on one side of the pit A, and storage on the other side. In addition to installing hopper C1, hulling device 2D, weighing value E, finishing tank, etc.
Elevators and the like are installed to transfer and supply grain between each device.

Of these, the punctual drying boxes B, H, . . . all have the following configurations. That is, it consists of a grain drying section 4 in which a storage section 1, an aeration drying section 2, and a grain collecting section 3 are stacked vertically, and a cooling tank 5 placed on the top of the frame of the four grain drying sections. These are constructed in the shape of a vertically long rectangular parallelepiped. Among these, the ventilation drying section 2 of the grain drying section 4 has a hot air chamber 7°7 and a ventilation chamber 8 on the left and right sides, sandwiching four grain flow passages 6, 6... formed of a breathable material. , 8... are formed, and the air sucked and ventilated by the suction fan 9 is hot-aired by the burner 10, and the hot air is applied to the grains flowing down the grain-flowing passages 6, 6.... Reference numerals 11, 11, . . . are delivery valves disposed at the lower portions of the grain flow passages 6, 6, . . . for gradually causing the grains to flow down.

A lateral transfer gutter 13 equipped with a transfer spiral 12 is provided outside the grain collecting section 3 that receives grains fed from each of the above-mentioned feed valves 11, 11, and collects them on the central side, and a joint opening 14 on the end side in the transfer direction is provided. It is connected to an elevator 15 which is part of the grain transfer mechanism section.

This elevator 15 is located on the back side of each machine frame of the grain drying section 4 and the cooling tank 5, and is erected at a slightly higher height than the cooling tank 5. Inside the elevator 15, an endless belt with packets attached at predetermined intervals is wound between the upper and lower pulleys, and the belt is configured so that it can scoop up the grains etc. from the above-mentioned section 014 and throw them at the upper part towards section 016. There is.

Moreover, this throw-out portion 016 has a switching valve 17, and is configured to be able to selectively supply water to the first opening A and the second opening mouth by switching the switching valve 17.

The discharge side end of the first opening A is exposed to the communication pipe 18 which is located at the front and back of the ceiling of the storage section 1 and connects to the starting end of the transfer u420 in which the transfer spiral 19 is built.

On the other hand, the second opening port looks into the starting end side of the transfer gutter 22 incorporating the transfer spiral 21, which is arranged in the same manner in the large well section on the side of the cooling tank 5.

The transfer spiral 19, the lever 20, the transfer spiral 21, and the gutter 22 are extended to the upper central position of each tank section.

It can be supplied to the rotating diffusion plate 23 or 24.

The cooling tank 5 includes a cooling section 25 having approximately the same capacity as the storage section 1 of the grain drying section 4, and two tank-shaped sections outside the cooling section 25, each having a discharge transfer gutter 26, 26 below. It consists of a feeding section 27 in which a. In addition, this feeding part 27 has a transfer spiral 28 which discharges the collection a#I material flowing down in order to horizontally transfer it.
．． 28 inside.

A bottom valve 30 is provided at the bottom of each discharge transfer trough 26, and by rotating this bottom valve about an appropriate fulcrum at the top, the bottom can be opened. With the switching operation of the bottom valve 30, grains from the feeding section 27 can flow down into the storage section 1 on the side of the grain drying section 4 through the open ceiling section C of the grain drying section 4.

31 is a motor that drives the transfer spiral 19 of the transfer gutter 20; 32 is the transfer spiral 28 of the -1- discharge collar feeding 2G, 26;
．． It is a 28v motor.

In addition, each of the discharge transfer spirals 28, 28 is made to project to the outside of the machine frame at the end thereof, and the projecting part is received by a transfer gutter 33, 33 attached to the outer surface of the machine frame.
The material is supplied to a discharge conveyor 35 in the form of a belt conveyor.

The supply start end side of the transfer gutter 20 is located outside the machine frame, and a discharge [12
It has 9.

The above left and right discharge transfer! Between 26.26 @ ring diameter feed trough 20
, the flow guide tubes 34, 34 and the discharge port 29 are arranged side by side on the left and right, and the discharge conveyor 3
5 is provided along the transport direction.

The above-mentioned discharge conveyor 35 is provided in a state in which the grain drying devices B, B, .
The box-shaped frame section 36 of the conveyor 35 is located between the rear side of each machine frame section and the elevator 15, and the box-shaped frame section 36 of the conveyor 35 is located between the rear side of each machine frame section and the elevator 15. It is attached via supports 37, 37...

Reference numeral 38 denotes a tension conveyor installed parallel to the front side of the discharge conveyor 35, which is in the form of a flight conveyor, and its box frame is supported and fixed to the box frame of the discharge conveyor 35. 7 There is a discharge port (not shown) in the middle of the above-mentioned loading conveyor 38.
These are provided with on-off valves (not shown), and the guide tubes 3 are connected to the plurality of grain drying sections 4, 4...individual elevators 15.
9.39... is connected.

Incidentally, the elevator 40 from the pit A is connected to the tensioning conveyor 38.
The dried grains from the discharge conveyor 35 are supplied to the storage hopper C via the #descender 41.

The hulling device is of a known type and consists of a culling section, a paddy/brown rice sorting section, and the like. A weighing device E is disposed on the brown rice outlet side of the paddy/brown rice sorting section, so that the rice is packed into bags according to a predetermined weight.

Figure 10 shows the block circuit diagram and shows the arithmetic control section (cpu
)42. Drying control and grain transfer control are performed by a microcomputer configured with a memory 43 and the like. That is, this arithmetic and control section 42 includes various human power systems and output systems, including a control section a that mainly controls the operation of the grain drying section 4, and an additional control section associated with mounting the cooling tank 5. Of these, the ms control section a
For example, each switch installed on the operation panel 45 of the control box 44, such as the operation signals of the loading, drying, discharging, and stop switches 46, 47, 48, and 49, the stop moisture value, and the amount of grain loaded. Setting rotary switches 50, 5], setting signals and digital signals from abnormality sensors, or analog signals from hot air temperature sensors, outside air temperature sensors, outside air humidity sensors, grain temperature sensors, moisture meters, etc. each input circuit. input via On the other hand, the burner 10 system signal of the ignition heater, fuel pump, and fuel valve, the motor for the elevator 15, the signal for driving and controlling the ring system load of the motor for the elevator 15, the motor dynamic pressure control signal for the suction fan 9, The table button 52 signal and the like are outputted through an output circuit.

In addition, for the additional controller 1-roll section, a cooling tank 5 is provided.
full gamma detection sensor, switching valve 17 position detection sensor of the dumping hole 16 section, bottom valve 30 position detection sensor of the discharge transfer gutter 26, 26, level detection sensor above and below the tank 5, or related to this tank 5. The charging, discharging, and stopping switches 53, 54, and 55 are used to select drying of only the storage section 1 (standard mode) or drying that involves discharging and stopping the cooling tank 5 (double mode). There is a manual setting switch for making decisions based on each setting signal of the designation switch 56. - As for force output information, in addition to outputting a spiral drive command signal for the discharge transfer gutter 26.26 on the side of the cooling tank 5, an immediate action command signal for the transfer gutter 22 section of the tank section 5, and the switching valve 17' There are a g movement command signal, a bottom valve 30 drive command signal, etc.

■- Among the switches described above, the tensioning switch 46 of the standard control section a is used as the first tensioning switch for tensioning the grain drying section 4, and the tensioning switch 53 of the additional control section is released. It is said to be the second loading switch that controls the loading of grain into the cold tongue 95 parts.

Among these, the designated switch 56 and the first . The changeover valve 17, the bottom valve 30, etc. are operated to a predetermined position by the combination of the second tensioning switch. For example, when the designated switch 5G is set to the standard mode 1-, the first According to the operation of the second tensioning switch 46, 53, the grain drying section 4 or the cooling tank 5 is independently enabled to be tensioned. When the designation switch 56 is set to the double mode, the switching valve 17 is set to the cooling tank 5 side so that both the cooling tank 5 and the grain drying section 4 can be filled by operating the first loading switch 46. The bottom valve 30 is opened to allow grain flow (grain flow).

At the same time, when the double mode is set, even if the second filling switch 53 is manually operated, the signal is rejected and the cooling tank 5 alone is not filled (limiting function). The same applies to the other operation switches 54 and 55 in the additional control section.In addition to the above, the limiting functions of the control section are provided as follows when setting the target mode. That is, during the filling operation into the cooling tank 5, the (first) filling/drying switches 46 and 47 for the grain drying section 4 are not equipped with a receiver. Furthermore, in the grain drying section 4, loading, drying,
During discharge operation, the (second) tension switch 5 on the cooling tank 5 side
3 does not include an uke.

The action of the upper side will be explained.

Grain harvested in the field, such as paddy, is transported by truck, etc.
Put it in pit A. The grain received in this pit A is lifted up by an elevator 40 and supplied to the starting end side of the pitching conveyor 38. Selective control from a control room (not shown) specifies which grain drying device B is to be loaded with grain, and when the loading switch is turned ON, a predetermined loading on/off valve opens, and the loading conveyor The grains transferred by 38 are in the specified drying bag! It will be supplied to B.

If the received grain is sufficient to be processed in the grain drying section 4, the designated switch 56 is set to the standard mode, and the designated grain drying device is stored by turning on the first loading switch described in 4-. Part] - Staking out! Get under the hood and get on the elevator.”
-5 receives and lifts the grain, and at this time it is thrown out L1
The switching valve 17 of 16 parts is switched to enable supply to the first opening part A side, and the connecting pipe 18. Transfer 44i II + 20
After that, it is loaded into the storage section 1 of the grain drying section 4 (the first
Figure 2 ■). The amount of filling is inputted to the control unit 42 by a manual switch based on visual judgment, and the temperature of hot air from the burner is determined based on an input signal from a sensor for detecting outside air conditions such as outside air temperature, and drying is performed based on the set temperature. It will be done. That is, each part of the grain drying section 4 is activated, and the grains gradually flowing down the grain flow passages 6, 6, . Elevator 15
．． It is circulated through the first opening section A, transfer @ 20, and the rotating diffusion plate 23 into the storage section 2, and is tempered in the storage section 1.

Figure 2 ■).

While repeating such a drying process, a preset finishing moisture value is reached and the drying is completed.When discharging from the storage section 1, it is recommended to turn on the discharge switch 48 of the semi-control section a. In response to the dry cloth discharge command signal, the above two switching valves 17 are switched and the second open L
Grain supply IJ (set to function) is placed on the J-section port side.As a result, the grains lifted by the lift V6 machine 15 are fed to the second port, the first port,
The water is transferred to the cooling section 25 in the cooling tank 5 through the transfer gutter 22 and the rotating diffusion plate 24 . Here, the grains are allowed to cool by being left for a predetermined period of time, and the temperature of the grains is kept low (Fig. 12 (■)).

When the grains in tank 5 were allowed to cool for a predetermined period of time,
When the discharge switch 54 of the additional control unit is turned on, the tank is transferred to the next hulling device where dehulling and paddy/unpolished rice sorting are performed, but the tank discharge command signal from the discharge switch 54 is received. Transfer spiral 2 of discharge transfer @26,26
8.28 is activated, and the grains in the cooling section 25 are discharged to the discharge conveyor 35 outside the machine via the discharge transfer gutter 26°2G (FIG. 12 (■)).

If the volume of the received grain is larger than one volume of the storage section, the double mode is selected using the designated switch, and the drying process as described below is performed. That is, the changeover valve 17 is switched to the second opening 1-1 section opening side in response to the tensioning start signal from the first tensioning switch 53 of the roll section a, and at the same time the cooling tank 5
The bottom valve 30 will also be switched to the open L state.
The sacral grains are loaded into the grain drying section 4 and the cooling tank 5 (Fig. 1-2 ■).

When all the grains to be dried have been completely loaded, the drying switch 54 is turned on. By turning on the switch 54, the grains in the tank 5 flow straight down from the small diameter feed trough 26.26 and fall into the storage section 1. On the other hand, the grains in the storage section 1 are fed through the downward delivery valves 11, 11...
The dried grain collected in the grain collecting part 3 is gradually fed out with the simultaneous rotation of the ventilation drying part 2, and dried by being exposed to hot air in the ventilation drying part 2. It is supplied and reaches the cooling tank 5 side, and the rotating diffusion plate 24
The cooling part 25 of the tank 5 functions as a refining part together with the storage part 1 below (Fig. 12 (■)).

” - In the case of
The discharge time can be shortened by simultaneously discharging from the pipe and discharging from the discharge transfer gutter 26.26 (
No. 12 (■) 6 In addition, if there is a large amount of grain received as mentioned above, the cooling tank 5
In addition to processing the grain in this and the storage section 1 at the same time, the cooling tank 5 is used for temporary storage of paddy.
It is also possible to wait until the drying in the storage section 1 is completed, wait for the completion of drying and discharge of the storage section 1, and then transfer it into the storage section 1 for drying in the standard mode.

Furthermore, the excess amount may be dried by loading it into another drying device B provided in parallel.

The grain transferred by the discharge conveyor 35 is supplied into the storage hopper C by the elevator 41, and after the completion of the subsequent hulling process, the grain is supplied from the hopper C to the hulling device.

Since the elevator 15 of the circulation mechanism for transferring the grains to the grain drying section 4 and the cooling tank 5 is common, there is a risk that different types of grains may mix due to malfunction of the grain transfer control. For selections U and ¥, the filling to the cooling tank 5 side is restricted, and when the s1M mode is selected, when the cooling tank 5 side is being filled, the loading, drying, and discharging operations to the grain drying section 4 are performed. , and when the grain drying section 5 side is drying, charging, and discharging, the charging operation to the cooling tank 5 can be restricted, thereby preventing the above-mentioned risk.

[BRIEF DESCRIPTION OF THE DRAWINGS] The figures show an embodiment of the present invention, in which Fig. 1 is a front view of the entire system, Fig. 2 is a plan view thereof, and Fig. 3 is an overall front view of the grain drying device. Fig. 4 is a sectional view, Fig. 5 is a side view, Fig. 6 is a rear view, Fig. 7 is an enlarged rear view of main parts, Fig. 8 is a sectional view, Fig. 9 is a perspective view, and Fig. 9 is a perspective view. FIG. 10 is a control block diagram, FIG. 11 is a front view of the control panel, and FIG. 12 is a table showing the operation configuration of each part by mode. In the figure, A is a waiting pit, B, B... are grain drying equipment, C is a storage hopper, D is a hulling device, E is a weighing device, F is a finishing tank, 1 is a storage section, and 2 is ventilation drying. 3 is a grain collecting section, 4 is a grain drying section, 5 is a grain storage tank, 6.6...
is the grain flow 8 suitable passage, 7, 7 is the hot air chamber, 8, 8... is the ventilation chamber, 9 is the suction fan, 10 is the burner, 13 is the w1 Shino feeder, 15 is the elevator, 17 is the switching valve, A is the first opening, the mouth is the second opening, 20 is the transfer gutter, 22 is the transfer gutter, 25 is the cooling section, 26, 26 is the discharge transfer gutter, 30 is the bottom valve, 33.33
35 is a discharge conveyor, 38 is a tensioning conveyor, 42 is an arithmetic control unit, a is a Yanagi control unit, b is an additional control unit, 45 is an operation panel, 46 is a first tensioning switch, 53 is a The second hook-up switch 56 indicates a designated switch.

Claims (2)

[Claims] (1) The cooling tank 5 is placed on the grain drying section 4, which consists of a storage section 1, an aeration drying section 2 that applies drying air to the grain flowing down from the storage section 2, a grain transfer mechanism section, etc. The transfer mechanism section has a switching valve 17 that is switched to transfer the dried grains to either the storage section 1 of the grain drying section 4 or the cooling tank 5, and the tank is located at the lower part of the cooling tank 5 side. In the grain drying device, which is provided with discharge transfer troughs 26, 26 for discharging the stored grains to the outside of the machine, and configured to allow the grains in the cooling tank 5 to flow down to the storage section 1 by means of opening the bottom valve 30 of the gutter, The drying control section has a standard mode in which the grains loaded into the storage section 1 are dried while being returned to the storage section 1 through the ventilation drying section 2 and the circulation mechanism section, and a standard mode in which the grains loaded into the storage section 1 and the cooling tank 5 are dried. A designation switch 56 for switching to a double mode in which grain is dried while being returned to the cooling tank 5 through the ventilation drying section 2 and the circulation mechanism section; a first loading switch 43 that controls loading grain into the grain drying section 4; A second loading switch 53 is provided to control the loading of grain into the cooling tank 5. Based on the double mode drying operation by the designated switch 56 and the operation of the first loading switch 43, grain is loaded into the storage section 1 and the cooling tank 5. A loading control device in a grain drying apparatus configured to switch and operate the switching valve 17 and the bottom valve 30 for loading grain. (2) In the grain drying apparatus according to claim 1, the drying control section is provided with a restriction function for restricting the operation of the second tensioning switch 53 when the designation switch 56 is set to the double mode. Staking control device.