JP2863935B2 - Grain drying facility - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial application field" The present invention relates to a grain drying facility such as a country elevator including rice, wheat, etc. as a target grain, and comprising a receiving section, a drying section, a storage section, a preparation and shipping section, and the like. .

[Prior Art] Conventionally, as shown in JP-A-63-302955, there is a facility provided with a storage bin, a thermal dryer and a silo.

"Problems to be Solved by the Invention" According to the prior art, since the grain put into the storage pin has a difference in moisture depending on the cargo port, the grain having uneven moisture is carried into the dryer from the storage bin. It is necessary to repeatedly dry grains with non-uniform water content to prevent quality deterioration, and it is not possible to easily perform grain moisture check, drying temperature management, and simplification of transporting work, thereby saving labor and reducing processing costs. Is not easily achieved.

`` Means for Solving the Problems '' Accordingly, the present invention provides a storage bin for charging the weighed grains received by the receiving section, a thermal dryer for charging and drying the grains in the bin, and a silo for storing the grains. In the grain drying facility to be provided, a dryer take-out member for bringing the grain of the storage bin and the grain of the thermal dryer into the silo, and a silo take-out member for bringing the grain of the silo into the thermal dryer or the storage bin are provided, and the grain is dried. It is characterized in that a plurality of dry air generators are provided to supply the normal temperature and constant humidity air to the storage bin, the thermal dryer and the silo, respectively.

[Operation] Therefore, since the grains in the storage bottle are dried to a substantially uniform moisture by the constant temperature and constant humidity air, it is possible to easily prevent uneven drying and simplify the tempering operation when making the dried grains suitable for long-term storage. In addition to easily saving labor and reducing processing costs, etc., when storing grains for a long period of time using storage bins and silos, the use of room temperature and constant humidity air causes deterioration in hot and humid periods such as summer and deterioration due to condensation in winter. Can be easily prevented, long-term storage of grains can be easily maintained at high quality, and the use of room-temperature constant-humidity air for the thermal dryer eliminates the need for cumbersome thermal drying adjustments due to changes in the outside air. Simplification and prevention of grain quality deterioration due to thermal drying can be easily achieved.

Embodiment An embodiment of the present invention will be described below in detail with reference to the drawings. Fig. 1 is an explanatory view of the storage bin, Fig. 2 is a plan view of the entire facility, and Fig. 3 is an explanatory view of the work process. Department (1)
And a roughing machine (5) for removing contaminants from the receiving paddy carried in from a receiving hopper (2) via a receiving conveyor (3) and a lifting machine (4); Unloading and weighing machine (6) whose weight and moisture are measured, and raw rice from the weighing machine (6) are carried in via a bin loading / lowering machine (7) and a top conveyor (8) and temporarily stored before drying. And storage bins (9) are provided in the receiving part (1).

In addition, the drying unit (10) is provided for drying the raw rice after receiving it by repeating drying and temporary suspension to uniformize the intragranular moisture and prevent cracking of the body, and drying the raw rice from the storage bin (9). Rice paddy bottom conveyor (11) and bin discharge elevator (12)
And a dryer (14), which is a thermal dryer for carrying in through a dryer loading / lowering machine (13) to remove a predetermined percentage of water content each time, and a temporarily suspended paddy taken out from the dryer (14). The auxiliary silo (19), which is a refining tank that is transported through a dryer take-out conveyor (15) and an elevator (16), a drying silo elevator (17), and an input conveyor (18), and the auxiliary silo (19) A drying section (10) is provided with a drying silo removal elevator (21) for sending out the removed semi-dried paddy to the dryer (14) again through a drying silo removal conveyor (20), and drying in the drying section (10). The paddy is configured to be sent to the storage unit (22).

Further, the storage unit (22) is a storage silo that carries and stores the dried paddy from the drying unit (10) via the conveyor (15), the elevators (16) (17), and the conveyor (18). A silo (23) and a selective paddy (26) that removes the dried paddy taken out of the silo (23) through a silo take-out conveyor (24) and a selective padding elevator (25) and removes and separates impurities from the dried paddy (26). And an adjustment tank (30) for feeding the selected paddy or rice removal from the selection machine (26) through the sales weighing machine (27) and the selection machine removal elevator (28) or the rice removal elevator (29). , A degrading machine (31) for degrading the awned paddy taken out from the culling machine (26), and the culled paddy after selling and weighing to the main silo (23) via the culling silo loading conveyor (32). And a selective silo lift (33) to be carried in. The selected paddy in the adjusting tank (30) is prepared and shipped in the next step (34). ).

The adjusting / shipping section (34) includes a huller (36) that carries the selected paddy from the adjustment tank (30) through the huller (35) and removes it from the huller (36). A rocking sorter (38) that brings in mixed rice through a mixed rice elevator (37) and takes out only good brown rice, and a brown conveyor from the rocking sorter (38) that uses a vibrating conveyor (39) and a brown rice elevator (40). ), A grain sorter (41) that sorts the grains under specified particles, a stone remover (42) that removes stones from the brown rice after grain selection, and good brown rice for good brown rice after stone removal. A shipping tank (45) for a flexible container (flexible container) (44)
A packing / shipping tank (46), an immature rice tank (48) for carrying immature rice taken out of the grain sorter (41) via an immature rice lifting machine (47) and a rice removal lifting machine (29), Elevator for good brown rice milling machine from good brown rice elevator (43) (49)
And a white rice tank (52) to be charged via a brown rice tank (50) and a rice mill (51).

(53) is a cargo receiving room, (54) is an office room, (55) is a main operation room, (56) is a blower room in which the blower (57) of the storage bin (9) is installed, and (58) is A dust removing chamber juxtaposed to the storage bin (9), (59) is a wet dust removing facility adjacent to the dust removing chamber (58), and (60) is a product storage area.

By the way, a dry air generator (61) for supplying air at room temperature and constant humidity is provided in the bin (9), the dryer (14) and the auxiliary silo (19), and the generator (61) is an evaporator for cooling and dehumidifying. (62) and a normal temperature restoration capacitor (63),
An outside air intake duct (65) for taking in humid air through a dehumidification control flap (64); a room temperature dehumidified air generated by the evaporator (62) and the condenser (63);
And a damper (66) for constant humidity for adjusting the air volume of the room temperature constant humidity air mixed with the moist air from (5), and for the pre-drying in the storage bin (9) as shown in FIG. The generator (61) is connected to the blower (57), and the air of normal temperature and constant humidity in the generator (61) is sucked into the blower (57) and is sent into each bin chamber (9a). Preliminary drying is performed so as to reduce the water difference between raw rice stored in the bin room (9a).

As shown in FIG. 4, the dryer (14) is an endless slat chain transporter (70) for moving paddy in a condensate tank (67) on upper and lower ventilation floor plates (68) and (69) having a louver bed structure. ), And the hot air from the burner (71) is supplied to the blower (7) during the flow of the paddy by the carrier (70).
2) The paddy supplied to the paddy and dried to a predetermined moisture value through the grain drying outlet (73) is taken out of the conveyer (15)
The generator (61) is provided at an outside air inlet (74a) of a soundproof room (74) of the dryer (14), and is supplied at room temperature supplied from the generator (61). Dryer (14) with air of constant humidity by the suction force of the blower (72)
It is constructed so that the rice is dried with hot air of constant humidity.

Further, as shown in FIG. 5, the generator (61) is connected to the auxiliary silo (19) via a blower (75), and the air supply guide (76) provided in the auxiliary silo (19) in large numbers. While the room-temperature constant-humidity air from the generator (61) is fed into the paddy layer in the silo (19) from the supply port (76a), the air after the paddy layer distribution is staggered with the supply guide (76). The air is exhausted from the exhaust port (77a) of the exhaust guide (77) arranged in the shape, and drying is performed with room temperature and constant humidity air even during storage in the auxiliary silo (19).

As shown in FIG. 6, a temperature sensor (78) and a humidity sensor (79) for detecting the temperature and humidity of the air taken in near the outside air intake (74a) of the soundproof room (74) are provided. The condensed tank (67) is provided with a moisture sensor (80) for detecting the moisture value of paddy in the tank (67), and a humidity control mechanism (81) of the generator (61) and a dryer (14)
These sensors (78), (79), (80) are connected to the central controller (83), which drives and controls the hot air temperature adjusting mechanism (82), so that the sensors (78), (79), (80) Dehumidification control of the generator (61) or dryer (14) based on the detected value
The hot air temperature control is performed. As is clear from the above, a storage bin (9) into which the grains received and weighed by the receiving section (1) are put, a thermal dryer (14) into which the grains in the bin (9) are put and dried, and In a grain drying facility provided with silos (22) for storage, the grains in the storage bin (9) and the grains in the thermal dryer (14) are silo (2).
Dryer take-out elevator (16), which is a dryer take-out member to be carried into 2), and thermal dryer (14) for drying grains in silo (22)
Alternatively, a silo unloading elevator (21), which is a silo unloading member that is carried into the storage bin (9), is provided, and the room temperature and constant humidity air for drying the grain is stored in the storage bin (9) and the thermal dryer (1).
A plurality of dry air generators (61) are provided for feeding the silo (22) and the silo (22) separately. Then, the grain in the storage bottle is dried to a substantially uniform moisture by the constant-temperature constant-humidity air, thereby preventing uneven drying and simplifying the tempering operation when making the dried grain suitable for long-term storage, thereby saving labor and reducing processing costs. When storing grains for a long period of time using storage bins and silos, the use of room temperature and constant humidity air can easily prevent deterioration in hot and humid periods such as summer and deterioration due to dew condensation in winter. Maintaining the quality and using room temperature constant humidity air for the thermal dryer eliminates the need for troublesome thermal drying adjustments due to changes in the outside air, thereby simplifying the thermal drying operation and preventing grain quality deterioration due to thermal drying. It is configured as follows.

The present embodiment is configured as described above, and the preliminary drying of the paddy in each bin room (9a) is performed by the room temperature constant room air from the generator (61) while the storage bin (9) is being stowed. In this case, the air in the bottle room (9a) is not heated by using the room temperature constant room air, the moisture in the air is removed, and the dry air with constant humidity is sent to the paddy room to remove the moisture between the rice paddies. By drying naturally to a substantially uniform equilibrium moisture content with almost no difference, it is possible to suppress the drying temperature to a low temperature that does not cause quality deterioration when working with the dryer (14) in the subsequent process. Inconveniences such as excessive drying and generation of a large amount of cracks in the body are prevented.

In the dryer (14), the generator (6
7) By taking in the room temperature constant humidity air from 1)
As shown in the flowchart of the figure, the temperature of the hot air of the dryer (14) is adjusted by the adjustment mechanism (82) to the temperature calculated only according to the moisture value of the paddy, keeping these constant without being affected by the outside air temperature and humidity. The drying is performed, and at this time, the upper limit of the quality assurance temperature of the grain, for example,
When the temperature exceeds the appropriate temperature of 40 ° C., the set humidity of the intake air is adjusted to be further reduced by the adjusting mechanism (81) so that the hot air temperature of the dryer (14) is made equal to or lower than the appropriate temperature. By keeping the humidity and temperature of the air taken into the dryer (14) constant at all times, the drying temperature is accurately calculated by a simple functional relationship between the moisture value of the paddy and the drying temperature, and the temperature setting is made. This can be done to simplify this temperature control.

Further, by sending the room-temperature constant-humidity air from the generator (61) to the paddy layer stored in the sub-silo (19), the humidity can be reduced to a constant level without heating the paddy layer during storage. The value is reduced to a dry state, so that the number of times of tempering performed by circulating the auxiliary silo (19) and the dryer (14) can be reduced, and the ability in this drying operation is improved. Can be.

[Effects of the Invention] As is clear from the above-described embodiments, the present invention provides a storage bin (9) into which grains weighed by the receiving unit (1) are put.
And a thermal dryer (14) for charging and drying the grains in the bin (9) and a grain drying facility provided with a silo (22) for storing the grains, wherein the grains in the storage bin (9) and the thermal dryer ( A dryer take-out member (16) for carrying the grain of 14) into the silo (22), and a silo take-out member (21) for carrying the grain of the silo (22) to the thermal dryer (14) or the storage bin (9).
And a plurality of dry air generators (61) for separately supplying room-temperature constant-humidity air for drying grains to a storage bin (9), a thermal dryer (14), and a silo (22). Since the grains in the storage bin (9) are dried to substantially uniform moisture by the constant temperature and constant humidity air, it is possible to easily prevent uneven drying and simplify the tempering operation when making the dried grains suitable for long-term storage. In addition to saving labor and reducing processing costs, the storage bin (9) and the silo can be used for long-term storage of grain,
The use of room temperature and constant humidity air can easily prevent deterioration in hot and humid periods such as summer and deterioration due to condensation in winter.
Long-term storage of grains can be easily maintained at high quality, and the use of room-temperature constant-humidity air for the thermal dryer (14) eliminates the need for cumbersome thermal drying adjustments due to changes in the outside air. It is possible to easily prevent a decrease in grain quality due to drying and the like.

[Brief description of the drawings]

1 is an explanatory view of a storage bin section, FIG. 2 is an explanatory plan view of the entire facility, FIG. 3 is an explanatory view of the work process, FIG. 4 is an explanatory view of a drying section, and FIG. FIG. 6 is a control circuit diagram, and FIG. 7 is a flowchart. (9) Storage bin (14) Dryer (dryer) (19) Secondary silo (tempering tank) (23) Main silo (storage silo) (61) Generator (74a) ) ... Outside air intake

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) F26B 17/14 F26B 25/22

Claims (1)

(57) [Claims] 1. A storage bin (9) into which grains received and weighed by a receiving section (1) are put, a thermal dryer (14) into which the grains in the bin (9) are put and dried, and a grain. Storage bins (9) in a grain drying facility with silos (22)
Dryer take-out member (16) for carrying the grain of the above and the grain of the thermal dryer (14) into the silo (22), and carrying the grain of the silo (22) into the thermal dryer (14) or the storage bin (9). A plurality of dry air generators (21) for providing a silo take-out member (21) and supplying normal temperature and constant humidity air for drying grains to the storage bin (9), the thermal dryer (14), and the silo (22), respectively. 61) A grain drying facility characterized by the establishment of: