JP2832302B2 - Drying equipment - Google Patents

Description

The present invention relates to a drying device such as a country elevator or a rice sensor for collecting and adjusting a large amount of rice or wheat and shipping the same.

"Prior art" Conventionally, as shown in Japanese Patent Publication No. 45-13418, a technique of installing a plurality of drying tanks between an input conveyor and an unloading conveyor, and loading and unloading grains into each of the tanks to perform a drying operation. There is.

[Problems to be Solved by the Invention] The above-mentioned prior art is provided with a plurality of tanks for one drying chamber and intermittently dries the kernels. The quality can be prevented from deteriorating due to generation of unevenness or uneven drying. However, two or more tanks are required for one drying chamber, and drying in the drying chamber is adjusted according to the drying condition of the grains in multiple tanks. It is necessary to adjust the power, it is not possible to easily improve the drying treatment capacity and labor saving, etc., and because it does not perform high-grade drying with room temperature constant humidity air that has a longer continuous drying time than thermal drying, Even if a plurality of drying chambers are provided and the continuous drying time is lengthened, grain waiting time in the tank is lengthened and drying is performed improperly, and equipment or management costs are likely to increase due to additional drying chambers There is a defect In addition, there is a problem that it is not easy to improve the quality of the dried grains and to simplify the drying operation, and it is not easy to easily improve the functions of a large-sized drying facility such as a country elevator or a rice center.

"Means for Solving the Problems" However, the present invention installs a plurality of drying tanks between the input conveyor and the take-out conveyor, and in the drying device that loads and unloads the kernels in each tank, the kernels are dried. A plurality of dehumidifiers and blowers that supply normal temperature and constant humidity air to each drying tank are provided separately, and a moisture sensor is provided at the grain discharge position of the take-out conveyor to detect the moisture of the exported grains, and separately from the drying tank. A replacement tank is installed between the respective conveyors, and a discharge shutter is provided for discharging grains from the drying tank after a certain continuous drying time has elapsed, and the grains after a certain continuous drying time have elapsed are replaced from the drying tank. An operation of moving the grains from another drying tank to the empty drying tank, an operation of returning the grains from the replacement tank to the empty drying tank, A controller is provided for automatically performing the drying operation of the blower based on a time measurement control and a detection result of the moisture sensor.

[Operation] Accordingly, since the stored grains in the drying tank are dried by the room temperature and constant humidity air supplied from the dehumidifier and the blower, the grains can be dried by a simple management operation without lowering the quality and commercial value, and By replacing the grains, moisture is detected while preventing uneven drying at the upper and lower positions inside the same drying tank, so that the replacement of grains and the automatic drying operation using the controller can be easily performed, and the drying capacity can be improved. Simultaneously improve the quality of the dried kernels and simplify the drying operation, at the same time as improving and saving labor, improve the functions of large-scale drying equipment such as country elevators or rice centers, and reduce the drying and storage costs of kernels. Can be easily achieved.

"Example" Hereinafter, an example of the present invention will be described in detail with reference to the drawings. Fig. 1 is a flow sheet of a rice center, Fig. 2 is a plan view,
FIG. 3 and FIG. 4 are side views, in which a receiving weighing hopper (1) for measuring the weight of grains (rice or wheat, etc.) carried in by a truck or the like and the grains from the hopper (1) are shown in the lower part. A dry charging / lifting machine (3) to be charged into the receiving port (2), and the lifting / lowering machine (3) having an air selector (4) and an automatic switching valve (5)
And a dry take-out screw conveyor (7) for connecting a feed start end to an upper discharge port (6) and a dry take-out belt conveyor (8) for connecting a feed end to a receiving port (2) of the elevator (3).

Then, a plurality of drying tanks (11) for supplying constant-temperature and constant-humidity air from the dehumidifier (9) and the blower (10) are installed between the conveyors (7) and (8), and the tanks (11) and so on. The feed end of the screw conveyor (7) is connected to the feed port through an automatic shutter (12) and the outlet of the tank (11) is connected to the belt conveyor (8) through an automatic shutter (13). It is connected to the feed start end side, and is configured so that grains are carried in and out of the drying tank (11) by the elevator (3) and the conveyors (7) and (8).

In addition, a replacement tank (14), which is a circulation tank having substantially the same capacity as the drying tank (11), is provided between each of the conveyors (7) and (8). The supply port on the upper part of the replacement tank (14) is connected to the drying tank (14) via the automatic shutter (16) and the automatic switching valve (17). An outlet is connected, and a replacement tank (14) is installed in the grain transport system of a plurality of drying tanks (11) that supply constant-temperature and constant-humidity air. Then, the kernels are put into the replacement tank (14) from one of the drying tanks (11), and the empty drying tank (11)
Then, the grains are fed from another drying tank (11), and the grains are fed from the replacement tank (14) to the last empty drying tank (11) to prevent uneven drying.

In addition, a moisture sensor (19) is attached to a lower receiving port (2) of the elevator (3) connected to an end of the drying take-out belt conveyor (8) via an automatic switching valve (18). A part of the grain is taken out, and the moisture content is measured by a moisture sensor (19). A plurality of drying tanks (11) for dehumidifying and drying with normal temperature and constant humidity air are installed, and each drying tank is installed. (11) A moisture sensor (19) is provided for detecting moisture when the grains of the drying tanks are replaced. The moisture sensor (19) is also used to detect the moisture content of the grains of each drying tank (11). The drying operation of the dehumidifier (9) and the blower (10) is automatically stopped by calculating the remaining drying operation time based on the moisture content of the grains to be supplied to the drying tank (11) for dehumidifying and drying with room temperature constant humidity air. It is configured as follows.

In addition, a bin loading elevator (2) for feeding grains from the outlet (6) of the drying loading elevator (3) to the lower receiving port (20).
1), a top conveyor (24) for connecting a feed start end to an upper discharge port (23) of the bin charging / lifting machine (21) having an automatic switching valve (22), and a receiving port (20) for the bin charging / lifting machine (21). ) To connect the feed end to the bottom conveyor (25),
A plurality of storage bins (26), which are dry matter storage means.

Then, the top conveyor (24) feed end side is connected to each bin (26) through an automatic shutter (27), and the bottom conveyor (28) is connected to each bin (26) through a manual shutter (28). 25) and bin loading elevator (21)
And the conveyors (24) and (25) to carry the grain in and out of the storage bin (26), and the switching valves (5) provided at the outlets (6) and (23) of the elevators (3) and (21). By switching (22), the grain is carried from the receiving weighing hopper (1) to the drying tank (11) or the storage bin (26),
The grain is carried from the drying tank (11) to the storage bin (26) and from the storage bin (26) to another drying bin (26).

Also, the storage bins (26) are arranged in two sets of two rows and connected by the communication duct (29) so that one blower (30) blows all the bins (26). Make up.

Further, each switching valve (1
8) A dry take-out elevator (32) provided with a lower receiving port (31) connected via (22), and an upper discharge port (34) of the elevator (32) having an automatic switching valve (33) is bottled. It is connected to the receiving port (20) of the charging / lifting machine (21), and the drying / unloading / lifting machine (32) is connected to the drying / feeding screw conveyor (7) feed start end or the replacement tank (14) through the automatic switching valve (35). Connecting the outlet (34) of the drying tank (11) to another drying tank (11) or the replacement tank (1).
4) From the replacement tank (11) to the drying tank (11) or storage bin (26), from the storage bin (26) to the drying tank (11)
Alternatively, the grain is carried into the exchange tank (14) via the drying / unloading elevator (32).

In addition, an automatic switching valve (17) at the outlet of the replacement tank (14)
Is connected to a rice huller (38) via a tank removal elevator (36) and a rice huller (37), and the rice crushed from the huller (38) is mixed with a paddy sorter (40) by a mixed rice elevator (39). ) And the brown rice from the paddy sorter (40) into the grain sorter (4).
Finished brown rice from 1) and grain sorter (41)
The brown rice taken out of the tank (43) through the automatic shutter (44) is weighed by the bagged shipping weighing machine (45). It is configured to ship in a bag.

In addition, a loading / unloading port (47) and a shipping port (48) are provided in the work room (46) constituting the rice center, and the receiving / weighing hopper (1) is located near the loading / unloading port (47) and near the shipping port (48). Install a bagged shipping tank (43). Then, six drying tanks (11) and two rows of 14 storage bins (26) are arranged in parallel in the longitudinal direction of the working chamber (46), and the space between the drying tank (11) and the storage bins (26) is arranged. A dehumidifier (9) and a blower (10) are installed in the space, and a dedusting chamber (49) and a drying chamber (50) are provided outside the drying tank (11).

In addition, a test dryer (52) and an automatic checker (53) are installed in a work room (51) in which a blower (30) for the storage bin (26) is provided, so that a self-inspection operation is performed.

FIG. 5 is a side view of the dehumidifying blower and the drying tank (11), FIG. 6 is an external view of the dehumidifying blower, FIG. 7 is an explanatory view of the drying tank, and FIG. It is a plane explanatory view of a tank, and supplies air to the opposite side surface of a drying tank (11) which is a closed rectangular box-shaped drying material storage means provided with a supply port (54) for taking grain in and out and an outlet (55) at the top and bottom. Duct (56)
And the exhaust duct (57) are fixed. The air supply duct (56) communicates with the inside of the tank (11) through a triangular air supply port (58). An air inlet (58) is opened at one end of the air guide (59) and the tank (11) is opened.
The inside communicates with the exhaust duct (57) through a triangular exhaust port (60), and one end of an end-faced, downward-opening exhaust guide (61) provided between the opposing side walls of the tank (11). The air outlet (60) is to be opened, and the air supply guide (5
9) and the exhaust guides (61) are alternately arranged in a zigzag pattern, and the dried material from the supply port (54) is dropped between the guides (59) and (61) and stored in the tank (11). On the other hand, the opening (55) is opened by the operation of the shutter (13) so that the grains inside fall down the tank (11).

Further, a blower connected to a dehumidifier (9) having a cooling / dehumidifying evaporator (62), a condenser for normal temperature restoration (63), a compressor for cooling (64), etc., and an electric motor (65) via a belt (66). A dehumidifier (9) and a blower (10) are mounted on a trolley (69) with movable wheels (68) ... provided with a blower (10) having a fan (67). The blower (10) is provided with a blower (71) that can be attached to and detached from the blower (70) of the tank (11) formed in the blower (10). Are configured to be joined or separated.

Further, an outside air intake duct (73) for taking in the atmosphere (humid air) through the dehumidification control flap (72) is provided, and the room temperature dehumidified air formed by the dehumidifier (9) and the atmosphere from the duct (73) are provided. The constant-temperature and constant-humidity air mixed with the air is sucked into the blower (10) through the damper (74) for constant humidity, and by adjusting the angles of the flap (72) and the damper (74), the blower (1) is adjusted.
The humidity of the room temperature and constant humidity air supplied from 0) to the drying tank (11) is adjusted.

Further, FIG. 9 is a circuit diagram for controlling the inflow and outflow of the grains in the drying tank (11) and the drying operation, and a continuous drying time setting device for initially setting the interval for replacing the grains in the drying tank (11) (for example, 24 hours). (75), dehumidifier (9) and blower (1
A dehumidification switch (76) for turning on / off 0) and a drying control circuit (77) composed of a microcomputer are provided.

Also, a drying elevator (3) that stops driving in conjunction with the drying feeding screw conveyor (7) and the drying take-out belt conveyor (8), a drying tank (11), a shutter (12) for charging, and a drying tank ( 11) Shutter for discharging (1
3) ... and the shutter (15) for inserting the replacement tank (14),
The replacement tank (14), the shutter (16) for discharging, the moisture sensor (19), the setting device (75) and the switch (76)
It is connected to the drying control circuit (77), and opens and closes each shutter (12) (13) (15) (16) at set time intervals,
The elevator (3) and the respective conveyors (7) and (8) are driven, and the grains of the respective drying tanks (11) are exchanged by using the exchange tank (14) to prevent uneven drying and a belt conveyor for drying and taking out. When the grain taken out from the drying tank (11) by (8) is put into the receiving inlet (2) of the drying and charging elevator (3), a part of the grain is taken out by the moisture sensor (19), The moisture content of the grain is measured by the moisture sensor (19),
On the basis of the detection result of the sensor (19), the dehumidification switch (76) is turned off after a certain period of time below a certain water content, and the drying operation of the dehumidifier (9) and the blower (10) is stopped. As is clear from the above, a plurality of drying tanks (11) are set between the grain feeding screw conveyor (7) as the input conveyor and the drying / extraction belt conveyor (8) as the extraction conveyor. In the drying apparatus for carrying in and out the grains, a plurality of dehumidifiers (9) and blowers (10) for supplying the room-temperature constant-humidity air for drying the grains to the respective drying tanks (11) are provided. A moisture sensor (19) is provided at the grain discharge position of the belt conveyor (8) to detect the moisture of the discharged grains, and a drying tank (1) is provided.
Separately replacing tank (14) with each conveyor (7)
A discharge shutter (13) is provided for discharging the grains from the drying tank (11) having a constant continuous drying time, and the grains after the constant continuous drying time have passed. The operation to move from 11) to the replacement tank (14) and the empty drying tank (11) to another drying tank (1
The operation of moving the grains from 1), the operation of returning the grains from the replacement tank (14) to the empty drying tank (11), and the drying operation of each dehumidifier (9) and blower (10) are automatically performed. A drying control circuit (77) is provided, which is a controller that automatically performs timekeeping control and a detection result of the moisture sensor (19). Then, the stored grains in the drying tank (11) are dried by the normal temperature and constant humidity air supplied from the dehumidifier (9) and the blower (10), and the grains are reduced by a simple management operation without lowering the quality and the commercial value. dry. In addition, by replacing the grains, moisture can be detected while preventing uneven drying in the upper and lower positions in the same drying tank (11), and the replacement of the grains and automation of the drying operation can be performed using the drying control circuit (77). In addition to improving drying processing capacity and labor saving, it is also possible to improve the quality of dried grains and simplify the drying operation, improve the functions of large-scale drying equipment such as country elevators or rice centers, and reduce the costs of drying and storing grains. The configuration is such that reduction can be achieved.

The present embodiment is configured as described above, and the grains charged into the receiving weighing hopper (1) are carried into the drying tank (11) or the storage bin (26), and a certain amount of water is contained by dehumidifying and drying the tank (11). While drying the grains to the rate, the dried grains are sent to the hulling sorting unit via the replacement tank (14),
The granules are taken out of the shipping tank (43) and packed in weighing bags.

The dehumidification drying in the drying tank (11) requires about 2 to 3 days, but when the time (for example, 1 day) initially set by the continuous drying time setting device (75) has elapsed, the flowchart of FIG. Shutter (12) (13) (15) as shown
By automatic opening / closing of (16), and driving of the drying and loading elevator (3) and each of the conveyors (7) and (8), the grains are carried out from the neighboring drying tank (11) to the replacement tank (14), and empty The kernels are brought into the tank (11) from another drying tank (11), and the kernels are put into the last empty tank (11) from the replacement tank (14). To prevent uneven drying.

The grain taken out from the drying tank (11) to the drying and charging elevator (3) has a moisture content measured by the moisture sensor (19), and as shown in the flowchart of FIG.
The detection result of the moisture sensor (19) is input, and when the moisture content falls below the setting, the remaining drying time is calculated, and after the drying time has elapsed, the dehumidification switch (76) is turned off and the dehumidifier (9) and The drying operation of the blower (10) is automatically stopped.

The dried grains are transferred from the drying tank (11) to the storage bin by automatic control of the shutter (13), the conveyor (8), the elevators (3) (21), the conveyor (24), and the shutter (27). It is carried out to (26) and waits for shipment.

[Effects of the Invention] As is clear from the above embodiments, the present invention provides a plurality of drying tanks (11) between the input conveyor (7) and the take-out conveyor (8). In a drying apparatus for carrying in and out grains, a plurality of dehumidifiers (9) and blowers (10) for supplying room temperature and constant humidity air for drying grains to each drying tank (11) are provided. 8) A moisture sensor (19) is provided at the grain unloading position to detect the moisture of the unloaded grain, and the replacement tank (14) is separated from the drying tank (11) by the conveyors (7) and (8). A discharge shutter (13) is provided to discharge the grains from the drying tank (11) after a certain continuous drying time, and the grains after a certain continuous drying time are input from the drying tank (11). To the replacement tank (14) and to the empty drying tank (11) The operation of moving the grain from another drying tank (11), the operation of returning the grain from the replacement tank (14) to the empty drying tank (11), the operation of each dehumidifier (9) and the blower (10) A controller (77) for automatically performing the drying operation based on the automatic timing control and the detection result of the moisture sensor (19) is provided, and the dehumidifier (9) and the blower (1) are provided.
Drying tank (1) with constant temperature and constant humidity air supplied from
1) Since the stored grains are dried, the grains can be dried by a simple management operation without deteriorating the quality and commercial value, and by replacing the grains, the grains can be dried in the same vertical position inside the same drying tank (11). Since moisture is detected while preventing uneven drying, the replacement of grains and automation of the drying operation using the controller (77) can be easily performed. That can easily improve the quality of rice and simplify the drying work, and can easily improve the function of large-scale drying equipment such as a country elevator or a rice center, and can reduce the drying and storage costs of grains. It is.

[Brief description of the drawings]

FIG. 1 is a flow sheet of a rice center showing one embodiment of the present invention, FIG. 2 is a plan view thereof, FIGS. 3 and 4 are side views thereof, and FIG. 5 is a side view of a dehumidifying blower and a drying tank. FIG. 6 is an external view of a dehumidifying blower, FIG. 7 is an explanatory view of a drying tank, FIG. 8 is a plan view of a dehumidifying blower and a drying tank, FIG. 9 is a drying control circuit diagram, and FIG. FIG. 11 and FIG. 11 are flowcharts. (11) Drying tank (14) Replacement tank (circulation tank)

Claims (1)

(57) [Claims] 1. An input conveyor (7) and an output conveyor (8).
A plurality of drying tanks (11) are installed between the tanks, and in a drying device for transferring the grain into and out of each of the tanks (11), room-temperature constant-humidity air for drying the grains is separately supplied to each of the drying tanks (11). A plurality of dehumidifiers (9) and a blower (10) to be supplied are provided, and a moisture sensor (19) is provided at a grain carrying-out position of the take-out conveyor (8) to detect moisture of carried-out grains, and a drying tank ( In addition to 11), a replacement tank (14) is installed between each of the conveyors (7) and (8), and a discharge shutter (13) for discharging grains from the drying tank (11) after a certain continuous drying time has elapsed. In addition, the operation of moving the kernel after a certain continuous drying time from the drying tank (11) to the replacement tank (14), and the operation of transferring the kernel from another drying tank (11) to the empty drying tank (11) Movement and the replacement tank (1
The operation of returning the grains from 4) to the empty drying tank (11) and the drying operation of each dehumidifier (9) and blower (10) are automatically performed based on the automatic timing control and the detection result of the moisture sensor (19). A drying device provided with a controller (77) for performing the drying operation.