JP2620099B2 - Grain test dryer - Google Patents

Description

[Detailed Description of the Invention] "Industrial application field" The present invention relates to rice, wheat, etc. as a target grain, and includes a rice receiving center, a country elevator, a rice receiving section, a drying section, a storage section, a preparation and shipping section, etc. The present invention relates to a grain test dryer provided with a number of sample containers for drying a fixed amount of sample grains of each receiving lot taken from a receiving weighing machine to a substantially constant moisture content in a grain joint drying facility such as a dry store.

2. Description of the Related Art Conventionally, as shown in Japanese Utility Model Application Laid-Open No. 58-145493, there is a technique of drying a sample grain by providing a plurality of sample containers on a conveyor.

"Problems to be Solved by the Invention" The prior art described above involves putting sample kernels into a sample container at the feed start end of the conveyor transport upper surface and removing sample kernels from the sample container at the end of the conveyor transport feed. There is a problem that the drying time of the grains is almost equal, each sample grain is taken out in a state of overdrying or underdrying, and it is not easy to make the conveyor structure compact and increase the number of sample containers. is there.

In addition, there is a technology that can provide a dried material support part that can be ventilated up and down on the vertical rotating shaft and can be configured more compactly than a conveyor structure.However, the suction hole of the blower is covered on the outer periphery of the conical upper shielding plate that is formed on the top surface. Since a dry matter support portion is provided and an exhaust hole and a heater are provided on the upper surface side of the support portion which is an exhaust positive pressure side of the blower, exhaust air of the blower is discharged from the exhaust holes, and the upper surface of the material to be dried is heated by the heat rays of the heater. In addition, since the outside air intake hole is provided on the lower surface side of the support portion which is the suction negative pressure side of the blower, the work is closed from the object to be dried and the air flow resistance is large, so that the work from the upper surface to the lower surface of the support portion is performed. There is a problem that the drying air is difficult to be sucked in the direction. Therefore, even if you can dry thin things such as glue and paper pieces,
In the case where a layer is formed like a sample grain, there are problems that the drying efficiency is improved and uniform drying of the sample grain layer above and below is not easily achieved.

Means for Solving the Problems However, according to the present invention, a substantially vertical rotating shaft is rotatably provided in a drying chamber, a substantially horizontal disk is fixed to the rotating shaft, and the drying chamber is vertically moved by the disk. , A plurality of sample containers that can freely vent in the vertical direction are arranged on the same circumference of the disk centered on the rotation axis, and sample grains are put into each sample container on the upper surface side of the disk. Supply cylinder to be
A discharge cylinder for taking out sample grains from each sample container on the lower surface of the disk, an outlet for supplying dry air to the lower side of the drying chamber on the lower surface of the disk, and moisture from the upper side of the drying chamber on the upper surface of the disk. An exhaust port for discharging air is provided in a housing forming a drying chamber.

[Operation] Accordingly, the drying chamber is divided into upper and lower parts by a disk on which the sample container is provided, a supply cylinder is provided on the upper surface of the disk, and a discharge cylinder is provided on the lower surface of the disk, and the sample kernel is provided from the upper surface of the sample container. Can be taken out from the lower surface, and the sample grains can be easily charged and discharged separately for each sample container, and the operation of drying to approximately uniform moisture can be easily performed by selecting a drying time for each sample grain, and Dry air is supplied from the outlet to the lower surface of the disk, the air on the upper surface of the disk is exhausted from the exhaust port, and the dry air is moved upward from the bottom of the sample container to dry the sample grains substantially uniformly. ,
Even if the drying chambers in which the discs are installed are installed in upper and lower tiers to increase the number of sample containers, the supply cylinder, the discharge cylinder, the air outlet, and the exhaust port can be shared by branching each. It is possible to easily improve the grain drying function, and make the installation space of the sample container compact and expand.

"Example" Hereinafter, an example of the present invention will be described in detail with reference to the drawings. Fig. 1 is a cross-sectional explanatory view of a test dryer, and Fig. 2 is an explanatory view of the entire facility. It takes out sample paddy from the receiving and weighing unit (1) (2) and performs drying and voluntary inspection. A load receiving and weighing machine (3) for weighing the raw rice by loading the raw rice into each loading port, and a conveyor (4) for transferring the raw rice from the weighing machine (3).
A roughing machine (6) for removing straw debris and the like in the paddy carried in by (5), and a conveyor (7) for the paddy from the roughing machine (6);
Storage tank (8) to be pooled via a storage tank, a measuring tank (9) for measuring the weight of raw rice from the storage tank (8), and a discharge tank (10) to be discharged from the tank (9) to a rice silo or a drying unit. By the above, each of the receiving and weighing units (1) and (2) is constituted,
While continuously measuring the weight and moisture of the paddy, the paddy is selected from the drying section by the preparation and shipping section that performs hulling sorting, and is prepared or stored or shipped to brown rice.
The centralized controller (12) connected to (1) is connected to the receiving operation panel (1).
It is configured to input the receipt (code) number from 3) and the receipt data (paddy weight and water content) from the output unit (14) of the measuring tank (9).

Furthermore, it is equipped with a shrinker (15) for taking out the sample paddy for performing the self-inspection, and a part of the raw paddy measured in the measuring tank (9) is taken out as a sample paddy to the shrinker (15) and shipped. From the unprepared raw rice, a uniform amount (about 600 grams) of sample rice is taken out through the above-mentioned decomposer (15) and the quantitative branch valve (16), and a fixed amount of sample from the branch valve (16) is taken out. The paddy is transferred to the sample test dryer (19) by the sample loader (18) via the conveyor (17), and the excess sample paddy of the shrinker (15) is returned to the payout tank (10). It is configured so that a fixed amount of sample paddy is taken out by the sample loader (18) during this work every time the shipping is separately measured.

A sample test dryer (19) for drying the sample paddy from the sample loader (18) to a substantially constant moisture content.
A centralized controller (12) for charging the sample paddy from the loader (18) to the receiving hopper (20) of the dryer (19) and discharging the sample pad after drying from the outlet (21). The input and output operations are performed based on a command signal from the controller.

Next, the sample paddy dried by the dryer (19) is provided with a self-inspection machine (22) for measuring the ratio of the separated rice paddy to polished rice and scrap rice, and the dried sample paddy from the outlet (21) is removed. A quantity (about 300 grams) necessary for one self-inspection (about 300 grams) is put into the receiving hopper (24) via the fixed quantity branching valve (23), and the remainder from the dryer (19) by the sample seal packaging machine (25). The dry sample paddy of the above and the brown rice and scrap rice taken out from the self-inspection machine (22) are sealed and packaged,
Each bag is filled with a card that has the receipt number, product type, and code number imprinted through a cutting printer (26) and stored. The quantity of the polished rice and scrap rice is input to the central controller (11). , This ratio is calculated and recorded.

As shown in FIGS. 3 and 4, the test dryer (19) includes a large number of sample containers (27)... Each of which holds the sample paddy to be fed into the receiving hopper (20). The boss (29) on the rotating shaft (28)
A plurality of rotating discs (30), each of which is mounted via a through-hole, are arranged in multiple stages in a cylindrical dryer case (31), and the rotating shafts (28) of these rotating discs (30) are centered. The sample containers (27) are arranged at equal intervals on the same circumference, and the rotating shaft (28) is driven by a drive motor (32).
When rotating at each disk (30) ... sample container (27) ...
Is configured to rotate.

In addition, the dryer case (31) is separated from each disk (30) by a partition wall (32) so that the upper, middle and lower drying chambers (34a) (34b) (34c) of each disk (30) are separated. While forming
A heater (3) is placed below the lower drying chamber (34c) via a partition (33).
A heater chamber (36) having a hot air duct (37) provided outside the dryer case (31) is provided.
The drying chambers (34a) (34b) (34c) and the heater chamber (36) are connected to each other through a), and the air taken into the heater chamber (36) from the air inlet (38) is heated to generate hot air. The drying chambers (34a), (34b), and (34c) are configured to be fed.

Further, the exhaust passage (39a) of the exhaust duct (39) provided outside the dryer case (31) is connected to each of the drying chambers (34a) (34).
b) While communicating with (34c), the exhaust passage (39)
An exhaust fan (41) is provided at the exhaust port (40) of a), and each drying chamber (34a) (34b) is rotated by the rotation of the exhaust fan (41).
The hot air taken in (34c) is sucked and discharged to the outside.

Further, the receiving hopper (20) is provided at the upper end of a sample supply tube (42), which is a single sample supply element provided alongside the dryer case (31), and a sample input port branched from the supply tube (42). (42a) (42b)
(42c) is provided so as to face the sample container (27) at a predetermined position in each of the drying chambers (34a), (34b), and (34c).
The solenoid (4) is connected to the supply port of the hopper (20).
3) Operable supply shutter (44) and test dryer (1
9) Moisture sensor (4
5), and a solenoid (46) is provided at a branch port of each input port (42a) (42b) (42c) in the supply cylinder (42).
Operative input shutters (47a), (47b), and (47c) are provided, and a solenoid (4) is inserted into the lower discharge port (42d) of the supply cylinder (42).
8) An operation type discharge shutter (49) is provided.

Further, a sample discharge cylinder (5), which is a single sample discharge element provided outside the dryer case (31), is provided.
0) branch outlets (50a) (50b) (50c) to each drying room (34
a) Face the sample container (27) at the predetermined position of (34b) (34c), and discharge the sample paddy dried to the set moisture state through each outlet (50a) (50b) (50c). (50)
It is configured to be taken out from the outlet (21) at the lower end.

As is clear from the above, the drying rooms (34a) (34b) (34
A substantially vertical rotating shaft (28) is rotatably provided in c), a substantially horizontal disk (30) is fixed to the rotating shaft (28), and the drying chambers (34a) (34b) (34c) A plurality of sample containers (27) ... vertically permeable to one another are arranged on the same circumference of the disk (30) about the rotation axis (28) by being vertically divided by a disk (30). On the upper surface side of the disc (30), a supply cylinder (42) for introducing sample grains into each sample container (27)..., And on the lower surface side of the disc (30), sample grains from each sample container (27). A discharge cylinder (50) for taking out grains,
Hot air duct (37) that is an outlet that supplies dry air to the lower side of the drying chamber (34a) (34b) (34c) below the disc (30)
And the drying chamber (34a) (34b) (34c) on the upper surface of the disk (30)
An exhaust port (40) that exhausts moisture-containing air from the upper side,
It is provided in a dryer case (31) which is a housing forming the drying chambers (34a), (34b), and (34c). Then, the drying chamber (34a) (34) is formed by the disc (30) on which the sample container (27) is provided.
b) (34c) is divided into upper and lower parts, a supply cylinder (42) is provided on the upper surface of the disk (30), and a discharge cylinder (5) is provided on the lower surface of the disk (30).
0) is provided, sample kernels are put in from the upper surface of the sample container (27), taken out from the lower surface, sample kernels are put in and out of the sample container (27), and drying time is selected for each sample kernel. Work to dry to almost uniform moisture and hot air duct (37) on the lower surface of the disc (30)
From the disc (30), exhaust air from the exhaust port (40), and move the dry air upward from the bottom of the sample container (27) to dry the sample grains almost uniformly. And the drying room (34a) (34b) in which the disk (30) is installed
Even if the sample container (27) is expanded by installing the (34c) in upper and lower tiers, the supply tube (42), the discharge tube (50), the hot air duct (37), and the exhaust port (40) are each branched. It is also configured so that the sample grain drying function can be improved and the space for installing the sample container can be made compact and expanded, as compared with the related art.

Also, as shown in FIG. 5, each of the outlets (50a) (50b)
Moisture sensors (51a) (51b) (51c) are provided above and below the sample container (27) at the (50c) position so that they can move up and down. The cylinders (52) fixed to the outside of the dryer case (31) At the end of the piston rod (52a), a mounting plate (5
The respective moisture sensors (51a) (51b) (51c) are supported via 3), and when the piston rod (52a) is extended, the moisture sensor (51a) (51
b) Moisture is measured by rushing the actuator section of (51c).

By the way, an upper lid (54) (54) is provided above the opening of the sample container (27) via a shaft (55) and a torsion spring (56). 54) (54) is closed and held at the position of the regulating members (57) and (57), and when the paddy is poured into the container (27) from the input ports (42a) (42b) (42c), the weight of the paddy is calculated. Thus, the upper lids (54) and (54) are forcibly opened against the spring (56), and after being charged, the upper lids (54) and (54) are held open by the input paddy.

A bottom shutter (58) made of a mesh body is provided at the lower part of the opening of the sample container (27) via a shaft (59) so as to be freely opened and closed, and is always stretched between the container (27) and the shutter (58). The shutter (58) is closed and held by the tension spring (60), and is fixed to the discharge ports (50a) (50b) (50c) below the opening operation plate (61) integrally connected to the shutter (58). When the shutter opening solenoids (62a), (62b), and (62c) to be set are excited, the shutter (58) is opened against the spring (60) to open the sample paddy in the container (27) at each discharge port (50a) ( 50b)
(50c).

This embodiment is configured as described above.
This operation will be described with reference to the flowcharts of FIGS.

Now from the sample loader (18) to the test dryer (1
When the sample paddy is put into the receiving hopper (20) of (9), the moisture sensor (45) detects the moisture content at the time of the receiving, and drying is performed based on the difference between the set moisture value and the detected moisture value. The time is calculated and the drying time is output from the centralized controller (12) to the test dryer (19) as a command signal.

In this case, the sample container (27) into which the receiving sample paddy is to be charged is specified at the same time. If there is an empty sample container (27) in the upper drying room (34a), the upper drying room (27) Sample paddy is put into each empty container (27) in 34a), and all containers (2
7) When the sample paddy is put in the entire use state, the sample paddle is put into each container (27) of the middle drying room (34b), and all the containers (34b) of this drying room (34b) 27) When it is ready for use, the containers (2
7) Subsequent inputs are made.

When the sample paddy from the receiving hopper (20) is fed into the upper, middle or lower drying chamber (34a) or (34b) or (34c), the respective input ports (42a) (42b) (42c ) Shutter (47a) (47b) (47
c) is opened, and a predetermined empty container (27) based on the command is rotated and moved by the motor (32) to a position below its inlet (42a) or (42b) or (42c), The received sample paddy in the receiving hopper (20) is supplied to the predetermined empty container (27) by opening the supply shutter (44).
And start the drying, and at the same time, start measuring the drying time. During the drying, the upper lids (54) and (54) of the container (27) into which the sample paddy has been put are kept open by the paddy layer, so that the heater chamber (3
The hot air sent from 6) passes through the mesh of the bottom shutter (58) and passes through the sedimentary layer of the paddy, and the hot air evaporates moisture while passing through the sedimentary layer and reduces the moisture value to the set moisture value. .

After a certain period of time based on the initial moisture detection, the predetermined container (27) is discharged to the discharge port (50).
a) The motor (32) is rotated and moved to positions (50b) and (50c), and the moisture sensors (51a) (51b) (51
c) is inserted into the sample paddy in this container (27) to detect moisture, and when the set moisture value is in an appropriate state, the solenoids (62a) (62b) (62c) are operated to excite the shutter (58).
While discharging the sample paddy, and when the drying is insufficient to reach the set moisture, re-drying is performed for a predetermined drying time based on a difference between the set moisture value and the detected moisture value,
This discharge takes place when the set moisture value is reached.

In addition, when the input operation and the discharge operation of the sample paddy during the operation to the sample container (27) overlap, the discharge operation has priority.

In the above-described embodiment, the structure in which the hot air from the heater chamber (36) is sucked and discharged to the outside by the single exhaust fan (41) has been described. However, each of the drying chambers (34a) (34b) (34c) An exhaust fan (41) may be provided to separately suck and discharge.

Further, the rotating shaft (28) of each of the disks (30)... May have a multi-axis structure or a structure in which each of the disks (30). Further, in addition to rotating the disk (30) at the time of charging or discharging the sample paddy, the disk (30) may be configured to always rotate at a low speed in order to prevent uneven drying. Further, a temperature sensor may be provided for each of the drying chambers (34a), (34b), and (34c) so that the room temperature of each of the chambers (34a), (34b), and (34c) is controlled to be constant. The dryer case (31) may have any shape other than a cylindrical shape, such as a planar square shape, and may have a structure in which the case (31) itself is provided in an outer case having various shapes.

[Effects of the Invention] As is clear from the above examples, the present invention provides a drying room (34
a) A substantially vertical rotating shaft (28) is rotatably provided in (34b) and (34c), and a substantially horizontal disk (30) is fixed to the rotating shaft (28), and the drying chambers (34a) (34b) ) (34c) to the disk (30)
A plurality of sample vessels (27) ... which are vertically permeable to each other are arranged on the same circumference of the disk (30) about the rotation axis (28), and the disk (3)
A supply cylinder (42) for introducing sample grains into each sample container (27) on the upper side of 0), and a discharge for extracting sample grains from each sample container (27) on the lower side of the disc (30). Drying chambers (34a) (34b) on the bottom side of the cylinder (50) and the disc (30)
(34c) An outlet (37) for supplying dry air to the lower side, and an exhaust port (44) for discharging air containing moisture from the upper side of the drying chambers (34a) (34b) (34c) on the upper surface of the disc (30) 40) is provided in the housing (31) forming the drying chambers (34a), (34b) and (34c). The drying chambers (34a) and (34b) are provided by a disc (30) on which a sample container (27) is provided. (34c) is divided into upper and lower parts, a supply cylinder (42) is provided on the upper surface side of the disk (30), and the disk (30)
A discharge cylinder (50) is provided on the lower surface side of the sample container, and sample grains can be put in and taken out from the upper surface of the sample container (27). By selecting a drying time for each sample grain, it is possible to easily carry out the operation of drying to a substantially uniform moisture, and to provide an outlet (37) on the lower surface side of the disc (30).
From the disc (30), exhaust air from the exhaust port (40), and move the dry air upward from the bottom of the sample container (27) to dry the sample grains almost uniformly. Drying room (34a) with a disk (30) inside
(34b) The sample container (2
Even if 7) is added, the supply cylinder (42), the discharge cylinder (50), the outlet (37), and the exhaust port (40) can be shared by branching, respectively. It is possible to easily improve the size of the space for installing the sample container, increase the size of the space, and increase the number of the sample container.

[Brief description of the drawings]

FIG. 1 is a cross-sectional explanatory view of a test dryer, FIG. 2 is an explanatory view of an entire facility, FIG. 3 is a cross-sectional explanatory view of a test dryer, FIG. 4 is a plan explanatory view of the same, FIG. 6 and 7 are flowcharts. (27) ... sample container (28) ... rotating shaft (30) ... disk (42) ... supply cylinder (supply element) (50) ... discharge cylinder (discharge element)

Claims (1)

(57) [Claims] A substantially vertical rotating shaft (28) is rotatably provided in a drying chamber (34a) (34b) (34c), and a substantially horizontal disk (30) is fixed to the rotating shaft (28). , Drying room (34a) (34b)
(34c) is vertically divided by the disk (30), and a plurality of sample containers (27) which can be vertically ventilated on the same circumference of the disk (30) about the rotation axis (28). A supply cylinder (42) for disposing sample kernels in each sample container (27) ... on the upper surface side of the disk (30);
A discharge cylinder (50) for taking out sample grains from each sample container (27) on the lower surface side of the disc (30), and a drying chamber (34a) (34b) (34c) lower side on the lower surface side of the disc (30). Outlet (37) for supplying dry air to the drying chamber (34)
a) (34b) (34c) An exhaust port (40) for discharging air containing moisture from the upper side is provided in the housing (31) forming the drying chambers (34a) (34b) (34c). And test dryer for grain.