JPH04194580A - Water draining device for grain drying machine - Google Patents

Abstract

PURPOSE:To prevent deterioration in quality of crop grains without generating any cracks in the crop particles during their circulating drying operation by a method wherein a bottom plate is provided with a water draining groove for receiving moisture discharged from some crop particles stored in a release cooling chamber and draining the moisture out of the machine in response to a stopped rotation of a screw for an upper grain and a closed state of the bottom plate. CONSTITUTION:A bottom plate 9 is provided with a water draining groove 10 for receiving moisture discharged from crop grains stored in a release cooling chamber 1 and discharging water out of the machine in response to a stopped rotation of an upper crop collecting screw 8 and a closed state of a bottom plate 9. Crop grains are stored in the release cooling chamber 1. The cop grains stored in a storing chamber 3 are fed out of the storing chamber 3 into a crop grain drying chamber 4, dropped there and supplied into a lower crop collecting through and these operations are repeated. Hot air generated from a hot air heater device 6 passes through the drying chamber 4 and then the air is sucked and discharged by a discharging blower 7. Some crop grains flowing down in the drying chamber 4 are exposed to the hot air and dried During the drying operation, moisture discharged from the crop grains stored in the release cooling chamber 1 is flowed into the water draining groove 10 at the bottom plate 9 and the moisture is discharged out of the machine through the water draining groove 10.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a drainage device for a grain dryer.

Conventional technology Conventionally, below the upper cooling chamber, an upper grain collecting trough with a rotatably installed upper grain collecting spiral, a grain storage chamber, a grain drying room, and a lower grain collecting trough were sequentially installed. A bottom plate that can be opened and closed is installed on the lower side of the upper grain collection gutter, and the hot air generated from the hot air device passes through the drying chamber and is sucked and exhausted by an exhaust fan, thereby removing the grains flowing down the drying chamber. is exposed to this hot air and dried.

The rotation of the upper grain collecting spiral is in a stopped state.

Further, the bottom plate is in a closed state and does not have a drainage groove or the like for receiving moisture released from the grains stored in the cooling chamber and draining it outside the machine, and has a special drainage device. There was no grain dryer.

Problems to be Solved by the Invention Grain stored in the cooling chamber of the grain dryer is stored in this cooling chamber, and at the same time, when drying the grains stored in the grain storage chamber, this storage The grains in the room are fed out from this storage chamber into the grain drying chamber, flowed down, and supplied into the lower grain collecting trough.While the circulation is repeated, the hot air generated from the hot air device passes through the drying chamber and is discharged. The grains flowing down the drying chamber are exposed to the hot air and dried by suction and exhaust air from the air blower.

During this drying process, if the grains stored in the cooling chamber have high moisture content, the moisture released from the grains may leak into the storage chamber through the bottom plate, and this leakage may occur. The water that has been removed may be repeatedly circulated within the storage chamber and may adhere to the drying grains, and this adhesion of water may cause the grains to develop shells and deteriorate the quality of the grains. However, this is an attempt to prevent this.

Means for Solving the Problems This invention allows grain to be transported from an upper cooling room 1 through a lower upper grain collection gutter 2 to a grain storage room 3, a grain drying room 4, and a lower grain collection gutter 5. The hot air from the hot air device 6 is ventilated into the drying chamber 4 while flowing down sequentially to the drying chamber 4, and is suctioned and discharged by the exhaust air l17 for drying. This grain dryer is equipped with a bottom plate 9 that can be opened and closed to discharge grains outside the machine by rotational drive of 8, and to open the bottom of the upper grain collecting trough 2 to allow the grains to flow into the lower storage chamber 3. , the rotation of the upper grain collection spiral 8 is stopped, and the bottom plate 9 is stopped.
The structure of the drainage device is characterized in that the bottom plate 9 is provided with a drainage groove 10 for receiving moisture released from the grains stored in the cooling chamber 1 and draining it outside the machine when the cooling chamber 1 is closed. do.

Effect of the Invention When the grains stored in the cooling chamber 1 of the grain dryer are stored in the cooling chamber 1, and at the same time, the grains stored in the grain storage chamber 3 are dried, The grains in the storage chamber 3 are fed out from the storage chamber 3 into the grain drying chamber 4, flowed down, and supplied into the lower grain collection gutter 5. While the circulation is repeated, the hot air generated from the hot air device 6 is By passing through the drying chamber 4 and being suctioned and exhausted by the exhaust fan 7, the grains flowing down the drying chamber 4 are exposed to this hot air and dried.

During this drying operation, water contained in the cooling chamber 1 and released from the grains flows into the drain groove 10 of the bottom plate 9, and is drained out of the machine through the drain groove 10.

Effects of the Invention According to the present invention, while the grains in the grain storage chamber 3 are being circulated and dried, the moisture released from the grains stored in the cooling chamber 1 is drained through the drainage groove 10 of the bottom plate 9. This water is then drained outside the machine, preventing this water from leaking and adhering to the grains being circulated. It was possible to prevent a decline in grain quality.

Example Hereinafter, one embodiment of the present invention will be described based on the drawings.

The troublesome part is the circulation type grain drying, which has a cooling part with a cooling room 1 etc. in the upper part, a grain storage room 3 in the middle part, and a drying part with a grain drying room 4 in the lower part. 11 is shown.

This dryer 11 has a rectangular shape that is long in the front and back direction, and has a machine wall 12.
An upper transfer gutter 14 in which an upper transfer spiral 13 is rotatably installed and a ceiling plate 15 are provided at the upper part, and below the ceiling plate 15, a cooling chamber l is formed in which the grains are left to cool.

On the lower side of this cooling chamber l, upper grain collecting troughs 2, 2 on the left and right sides are provided by 1 G between the grain collecting holes 16 on both the left and right outer sides and the grain collecting holes 16 on both the left and right sides of the center. A diamond-shaped guide plate 17.17 is provided at the center of the upper grain collecting trough 2.2, and a diamond-shaped guide plate 17.17 is provided at the center of the upper grain collecting trough 2.2.
Inside is rotatably supported an upper grain collection spiral 8.8 that laterally transfers grains to the outside of the machine or feeds them to the bottom. Sho 18,
Reference numeral 18 denotes an upper grain collection discharge funnel, which is connected to a discharge device 2119.

A bottom plate 9.9 is provided below the upper grain collection troughs 2, 2 so that the bottom plate 9.9 can be opened and closed. It is structured so that it is fed out to the bottom by the rotation of the grain spiral 8.8, and this bottom plate 9.9
Due to the closed state of the upper grain collecting troughs 2, 2, the grains are transferred by the rotation of the upper grain collecting spiral 8.8 to the rear side through the upper grain collecting discharge funnel 18.18. It is configured to be discharged into the discharge device 19 outside the machine wall 12, and this bottom plate 9.9
is configured to be opened and closed by bottom plate opening/closing motors 20, 20.

Moisture released from the pressure of the grain stored in the cooling chamber 1 is allowed to flow into the upper surface of the bottom plates 9, 9 in the left-right direction and in the front-back direction of the central portion, and is guided out of the machine. The structure includes a drainage groove 10.10 for draining water, and this drainage groove 1
0.10 on the top.

A filter 21 that prevents grains, dust, etc. from entering this drainage ditch 1'0.10. '21, and this drain groove 10.10 is inclined toward the front side, and the mechanism 1
It has a structure in which it is connected to two drain ports 21', 21' via connecting plates 22', 22'.

A lower transfer spiral 22 is provided in the space between the upper grain collecting troughs 2, 2.
A lower transfer gutter 23 in which grains are rotatably installed is provided, and the storage chamber 3 for storing grains is formed below the lower transfer gutter 23.

On the lower side of the storage chamber 3, four drying chambers 4 are provided between the three exhaust chambers '24 on both left and right sides and the center and the ventilation chambers 25, 25 on both left and right sides. At the bottom of each drying chamber 4, each delivery valve 26 for delivering and flowing grains is rotatably supported. Reference numeral 39 denotes a delivery valve motor configured to rotate each delivery valve 26 via a speed reduction mechanism 40.

A lower grain collecting trough 5 in which a lower grain collecting spiral 27 is rotatably installed is connected to the lower side of each of the drying chambers 4.

On the front side of the mechanism 12, each of the ventilation chambers 25.25
A hanging air duct chamber 28 is formed which communicates with the air duct chamber 28.
The hot air device 6 is detachably attached to the mechanism 1.
An operating device rIL 29 for starting and stopping the hot air device 6, the drying rack 11, etc. for each of the drying and discharging operations is removably attached to the outer surface of the hot air device 6.

Further, on the back side of the moeki square wall 12, there is formed an air exhaust duct chamber 3° that can communicate with each of the exhaust chambers 24 on the left and right outer sides and in the central part. An exhaust fan 7 is provided in the exhaust passage chamber 3o, and an exhaust fan motor 32 for rotationally driving the exhaust air Ii7 is provided in the exhaust passage chamber 3o.

The first hot air device 6 has a burner 34 inside a burner case 33.
A fuel pump 35 having a fuel valve is detachably provided on the outer side of the lower plate of the burner case 33, and the fuel pump 35 is configured to suck fuel in a fuel tank 36 and supply it to the burner 34. Also, on the outside of the upper plate, there is a blower 37 for supplying combustion air into the burner 34, and this blower 37.
The configuration includes a blower motor 38 that rotates and drives.

A central part in the longitudinal direction of the bottom plate of the upper transfer gutter 14 and a central part in the longitudinal direction of the bottom plate of the lower transfer gutter 23 are provided with respective supply channels for supplying transferred grains into the cooling chamber 1 and the storage chamber 3. Upper and lower diffusion plates 41.4 are provided below each supply port to uniformly diffuse and return grains to the cooling chamber 1 and the storage chamber 3.
1 is provided. Also, in the cooling chamber 1 and the storage chamber 3, there are full sensors 42 and 42 for detecting the full state of grains.
The configuration includes the following. Reference numeral 43 is a motor for the lower transfer gutter which rotationally drives the lower transfer spiral 22, the lower diffusion plate 41, etc. in the lower transfer gutter 23.

A lower transfer gutter discharge funnel 44 is provided at the bottom of one end of the lower transfer gutter 23, and an on-off valve 46 that can be opened and closed by an opening/closing motor 45 is provided in the lower transfer gutter discharge funnel 44. In the closed state, the grains are transferred onto the lower diffusion plate 41 by the lower transfer spiral 22 in the lower transfer gutter 23 and supplied into the storage chamber 3, and in the open state of the on-off valve 46, the grains are transferred. The grains are supplied from the lower transfer gutter 23 through the lower transfer discharge funnel 44 into the front discharge device 19, and are transferred by the discharge device 19 and discharged outside the machine.

The grain raising machine 47 is provided outside after the vertical wall 12, has a belt with a packet conveyor 48 stretched inside, and has a dispensing tube 49 at its upper end. side and the starting end of the upper transfer FA 14, and the other side of this dispensing tube 49 and the starting end of the lower transfer gutter 23 are communicated via the upstream lower part 50, and the lower end and the lower grain collecting gutter 5 A supply gutter 51 is provided between the end portion and the end portion for communication.

A dispensing barrel on-off valve 53 that can be opened and closed by a dispensing barrel on-off valve motor 52 that rotates in forward and reverse directions is provided in the dispensing barrel 49, and when the dispensing barrel on-off valve 53 is open, the grains are The grains are supplied from the dispensing pipe 49 into the upper transfer gutter 14, and when the discharging pipe on-off valve 53 is closed, the grains are fed from the dispensing pipe 42 through the upstream lower part 50 to the lower transfer gutter 23. The structure is such that it is supplied to the inside.

54 is a grain raising machine upper motor, and the packet conveyor 48
the upper transfer spiral 1 in the upper transfer gutter 14;
3, the upper spreading plate 41, and the like are rotationally driven, and the inside 27 of the lower grain collecting gutter 5 is rotatably driven via the belt with the packet conveyor 48. Reference numeral 55 denotes a grain hoist lower motor, which is configured to rotate the upper grain collecting spiral 8.8 in the upper grain collecting trough 2.2.

Said Koku W! A moisture sensor 56 for detecting grain moisture is provided below the middle of the grain 47 in the vertical direction. This moisture sensor 56 is operated by transmitting an electrical measurement signal from the operating device 29, so that a moisture motor 57 rotates and each part of this moisture sensor 56 is rotationally driven.
At step 8, the grains that fall while being conveyed to the upper part are received, the grains are crushed under pressure, and at the same time, the water content of the crushed grains is detected.

The operating device 29 has a two-box shape, and the surface plate of the box has a
A start switch 58 for starting the dryer 11 and the hot air device 6, etc. for each operation of loading, drying, and discharging, a stop switch 59 for stopping the dryer 11, the hot air device 6, etc., and supplying grains to the cooling chamber I for drying. A changeover switch 60 for switching between double drying and single drying in which the grains are supplied to the storage chamber 3 for drying, a moisture setting seed 61 for setting the finishing target moisture content of the grains depending on the operating position, and the hot air equipment! The temperature of the hot air generated from the burner 34 of No. 26 is set according to the operating position. Grain type setting seed 62 and loading amount setting seed 63, detected grain moisture, detected drying hot air temperature, drying remaining time, etc. are alternately digitally displayed. The configuration includes a digital display section 64 and a monitor display.

Moreover, the moisture sensor 56 and the hot air temperature sensor 65 are installed inside.
An A-D converter 66 that converts the detected value detected by the
, an input circuit 67 into which the converted value converted by this A-D converter 66 is input, the operation of the switches 58, 59, 60 and the target north setting ropes 61, 62, 63, and the operation of each of the full capacity sensors 42. An input circuit 68 into which detected values to be detected are input, a CPU 69 which performs arithmetic and logical operations, comparison operations, etc. on various input values input from these input circuits 67 and 68;
It has a built-in drying control device 71 that includes an output circuit 70 that receives and outputs various commands from the PtJ 69. The setting types 61, 62, and 63 are of a rotary switch type, and are configured to set predetermined values, types, etc. according to the operating position.

Drying control of grains by the drying control device [71] is configured as follows. That is, Moeki moisture setting hunting 6
The contents of the operation No. 1 are input to the CPU 69, and the finishing target moisture content of the grain is set by this input. On the other hand, the grain moisture detected by the moisture sensor 56 is also input to the CPU 69, the input detected grain moisture is compared with the set finishing target moisture, and it is detected that the detected grain moisture has reached the finishing target moisture. When this happens, each operating part of the dryer 11 is automatically stopped to finish drying the grains.

Additionally, the drying control device 71 has the following functions. That is, the operation contents of the changeover switch 60, for example, the operation to the double drying side and the start switch 5 to start the drying operation.
8 is input to the CPU 69, double drying is set by this input, and drying is started. With this setting, the bottom plate opening/closing motors 20, 20 are rotated,
In conjunction with the rotation of the bottom plate opening/closing motors 20, 20, the bottom plates 9, 9 of the upper grain collecting troughs 2, 2 are controlled to be in an open state. The upper grain collecting spiral 8.8 in the upper grain collecting troughs 2, 2 is configured to be rotationally driven, and the dispensing barrel on-off valve motor 52 is rotated in the forward direction. In conjunction with the forward rotation of the motor 52, the dispensing cylinder on-off valve 53 in the dispensing cylinder 49 is controlled to be in an open state. Thereby, the grains are transferred from the dispensing tube 49 to the upper transfer gutter 14, the upper spreading plate 41, the cooling chamber 1, the upper grain collection gutter 2, 2, the storage chamber 3, and each of the drying chambers 4. , the lower grain collection trough 5, the grain raising machine 47, and the grains are repeatedly circulated to the dispensing pipe 49, thereby drying the grains.

Further, the operation contents of the changeover switch 60, for example, the operation to the single drying side and the operation of the start switch 58 to start the drying work, are input to the CPU 69, and by this input, single drying is set and drying is started. Ru. With this setting, the dispensing cylinder on-off valve motor 52 is rotated in the reverse direction, and in conjunction with the reverse rotation of the dispensing cylinder on-off valve motor 52, the dispensing cylinder on-off valve 53 in the dispensing cylinder 49 is rotated in the opposite direction. This is a configuration that is controlled to be in a closed state. Thereby, the grains are transferred from the dispensing pipe 49 to the upstream lower part 5O, ffI lower transfer gutter 2.
3. The lower diffusion plate 41, the storage chamber 3, and each of the drying chambers 4.
, the lower grain collecting trough 5, the grain raising machine 47, and the discharging pipe 4.
The structure is such that the circulation is repeated from step 9 to dry the grains.

When performing this single drying operation, the upper cooling chamber l
The structure is such that the grains are stored inside the container, and raw rice is dried by ventilation when stored, and dried grains are left to cool when stored.

As shown in FIG. 11, below the bottom plates 9, 9 are provided downstream guide plates 72.
72 and the upper grain collecting trough 2.
2, and the grains flow from the upper grain collecting trough 2.2 to the downward guide plate 72.2 by opening the bottom plates 9, 9.
72 and is configured to be supplied downstream into the storage chamber 3 through the passages 73 and 73 between them, and this outer downstream guide plate 7
2 and the inner side of the mechanism 12 on the side and between the downstream guide plates 72 and 72 in the center, partition plates 74 are provided between the storage chamber 3 on the lower side and the cooling chamber 1 on the upper side. Each partition plate 7
The configuration is such that it is shut off at 4.

As a result, when dried grains are stored in the cooling chamber 1 and left to cool, and when raw paddy is placed in the storage chamber 3 for drying, the dry grains are stored in the storage chamber 3. If evaporated water generated from raw paddy during tempering adheres to dried grains that are being left to cool, shell side may be generated in the dried grains, but this evaporated water is blocked by the partition plates 74. This is intended to prevent this occurrence on the torso side.

As shown in FIG. 12, the lateral mechanism 12 in which the upper grain collecting troughs 2' formed between the left and right grain collecting shelves 16' are located has a plurality of outside air suction lowers 5 for sucking outside air. In addition, each outside air suction lower 5 section is provided with each outside air suction valve 76 that can be opened and closed.

As a result, when dried grains are stored in the cooling chamber 1 and left to cool, and when raw paddy is placed in the storage chamber 3 for drying, the dry grains are stored in the storage chamber 3. If the evaporated moisture generated from the raw rice in the tempering leg adheres to the dried grains that are being left to cool, shell side may be generated in the dried grains. This is intended to prevent this occurrence on the body side by simultaneously sucking and discharging the outside air with the exhaust air 117 at the same time as the outside air sucked from the outside air suction lower 5.

Hereinafter, the operation of the above embodiment will be explained.

Operate the setting knobs 61, 6.2.63 of the operating device 29 to predetermined positions, and when performing double drying with the grain dryer 11, operate the changeover switch 60 to the double drying side to start drying work. By operating the start switch 58, each part of the dryer 11, the hot air device 6, the moisture sensor 56, etc. are started, and the burner 34 of the hot air device 6 generates hot air, and the The bottom plates 9, 9 are in the open state,
The upper grain collection spirals 8, 8 in the upper grain collection troughs 2, 2 are rotationally driven.

This hot air flows into the air duct chamber 28 and the air blowing chamber 25.25 □-C.
Anwa. 5.4 pieces, 1.5 ventilation chambers? Potato and exhaust duct room 30
The grains stored in the cooling chamber 1 are sucked and discharged by the exhaust air 11!7, and then from the cooling chamber 1, through the upper grain collecting troughs 2, 2, and the storage chamber 3, are collected in each of the respective areas. While flowing down in the drying chamber 4, it is exposed to this drying hot air and dried, and is fed out to the lower part by each feeder valve 26 and flows down from the lower collecting trough 5 to the supply trough 51.
The grains are then transferred and supplied into the grain raising machine 47 by the lower transfer spiral 22, and then conveyed to the upper part by the packet conveyor 48 and sent to the dispensing tube 49.
It is supplied into the upper transfer 8! 14 through the upper transfer gutter 14 to the upper diffusion plate 41 by the upper transfer spiral 13 on the upper side, and then evenly into the cooling chamber 1 by the upper spreading plate 41 When the moisture sensor 56 detects the same grain moisture as the finishing target moisture set by operating the moisture setting switch 61, the drying control device 71 of the operating device 29 automatically controls the grain moisture. Then, the drying 49111 is automatically stopped and drying of the grains is stopped.

Further, when performing single drying in the dryer 11, when drying is performed by operating the changeover switch 60 to the single drying side, the grains stored in the storage chamber 3 are transferred from the storage chamber 3 to each drying chamber. 4, it is exposed to hot air and dried while flowing down,
The grains are delivered to the lower part by the respective delivery valves 26 and flowed down to the lower grain collecting trough 5 and then transferred to the grain raising machine 47 via the supply trough 51 by the lower transfer spiral 22, and then by the packet conveyor 48. It is conveyed to the upper part and is supplied into the lower transfer gutter 23 via the dispensing cylinder 49 and the upstream lower part 50, and this lower transfer gutter 23
The water is then transferred and supplied onto the lower diffusion plate 41 by the lower transfer spiral 22 on the lower side, and is evenly diffused and returned into the storage chamber 3 by the lower diffusion plate 41, and is circulated and dried so that the moisture sensor 56 adjusts to the moisture setting. When the moisture content of the grains is the same as the target moisture content set by operating the preset 61, the drying control device 71 of the operating device 29 automatically controls the drying unit 5111 to stop the drying of the grains. be done.

During this single drying, if this single drying and the ventilation drying of the raw paddy stored in the cooling chamber 1 are performed simultaneously, the moisture released from the raw paddy will be transferred to the upper grain collecting trough 2,
2 flows into the drain grooves 10.10 of the bottom plates 9, 9 on the lower side, flows through the drain grooves 10.10, and drains into the drain ports 21', 21.
Water is drained from the machine through the connecting plates 22' and 22'.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a block diagram, Fig. 2 is a side sectional view of a part of the grain dryer, and Fig. 3 is an enlarged sectional view taken along line A-A in Fig. 2. Figure 4 is an overall side view of the grain dryer, Figure 5 is a sectional view taken along line B-B in Figure 4, Figure 6 is an enlarged sectional view taken along line CC in Figure 4, and Figure 7 is a grain dryer. A side perspective view of a portion of the dryer, FIGS. 8 and 9 are enlarged rear views of a portion of the grain dryer, and FIG. 10 is an enlarged partially cutaway front view of a portion of the grain dryer. , FIG. 11, and FIG. 12 are C- in FIG.
C is an enlarged sectional view. Explanation of symbols 1 Cooling room 2 Upper grain collecting gutter 3 Grain storage room 4 Grain drying room 5 Lower grain collecting gutter 6 Hot air device 7 Air exhaust fan 8 Upper grain collecting spiral 9 Bottom plate
10 Drainage ditch

Claims (1)

[Claims] While the grains are sequentially flowing down from the upper cooling chamber 1 through the lower upper grain collection gutter 2 into the grain storage chamber 3, grain drying room 4, and lower grain collection gutter 5, The hot air is ventilated into the drying chamber 4 and is sucked and discharged by an exhaust fan 7 for drying, and the grains are removed from the machine by the rotational drive of the upper grain collection spiral 8 installed in the upper grain collecting trough 2. In a grain dryer equipped with an openable and closable bottom plate 9 that opens the bottom of the upper grain collection gutter 2 and allows the flow to flow into the storage chamber 3 below, the rotation of the upper grain collection spiral 8 is stopped. , and a drainage system characterized in that the bottom plate 9 is provided with a drain groove 10 that receives moisture released from the grains stored in the cooling chamber 1 when the bottom plate 9 is closed and drains it to the outside of the machine. Device.