JPH03194383A - Cereals drying facility - Google Patents

Abstract

PURPOSE:To perform safe operation without decrease in quality, to improve durability and to reduce expenses by providing a static installation-type ambient temperature constant-moisture drier having a cereals drying tank and a dry air generator for supplying ambient temperature constant-moisture air in a drying apparatus. CONSTITUTION:In a facility having a storage bin for loading cereals to be loaded, a drier for drying the cereals, and a storage silo for storing cereals to be dried, a static installation-type ambient temperature constant-moisture drier 14 having a cereals drying tank 64 for storing and drying the cereals, and a dry air generator 58 for supplying ambient temperature constant-moisture air is provided in a drying apparatus. Due to this structure, the cereals can be dried in a state near natural drying with the air dried in a constant-moisture at an ambient temperature without humidifying the cereals, and safe operation is performed without decrease in its quality. Further, cereals conveying system and the like is deleted by static installation drying to improve its durability and to reduce its expenses.

Description

Detailed Description of the Invention "Field of Industrial Application" The present invention targets grains such as rice, wheat, and soybeans, and is designed to dry grains such as country elevators, which are composed of a receiving section, a drying section, a storage section, a preparation and shipping section, etc. Regarding facilities.

``Prior art'' Fire-powered dryers are usually used for drying in this type of facility.For example, in the case of drying paddy, a large amount of paddy with high moisture content (about 24% moisture) is received, so drying is necessary. Primary (
The paddy is separated into two stages: drying (up to a moisture level of around 17%) and secondary drying (up to a finishing moisture level of around 14.5%), and after the primary drying is completed, the paddy is temporarily stored in a silo until all of the paddy is received.
When all of the paddy has almost been received, secondary drying is performed to maintain the quality of the paddy and improve the processing capacity of the facility.

``Problems to be Solved by the Invention'' However, in the case of the heating type using a fire-powered dryer as described above, drying is difficult and the drying is forced to be done at a relatively high temperature, resulting in overdrying, which can lead to shell cracking. Not only does it have drawbacks that cause quality deterioration, such as drying and deterioration of flavor, but the silo used to temporarily store semi-dry paddy after primary drying requires a large storage capacity, making the entire facility larger. There were drawbacks.

``Means for Solving the Problems'' Therefore, the present invention provides for storing grain in a facility equipped with a storage bin for holding received grain, a drying device for drying the grain, and a storage silo for storing the dried grain. The drying apparatus is equipped with a stationary room-temperature and constant-humidity dryer comprising a grain drying tank for storing and drying grains and a dry air generator for supplying room-temperature and constant-humidity air to the drying tank.

This drying device also makes it possible to store semi-dry grains.

``Function'' According to the present invention, the grain is dried at a constant room temperature (similar to natural drying with dry air at 2 degrees Celsius) without heating the grain, so there is no quality deterioration and safe operation is possible. Moreover, by static drying, it is possible to reduce the need for grain conveyance systems, improve durability and reduce costs.Also, by making it possible to temporarily store semi-dry grains in the drying equipment, The processing capacity of this facility can be improved by increasing the storage amount of semi-dry grain while maintaining a constant storage amount in the silo that temporarily stores semi-dry grain.

``Example'' An example of the present invention will be described in detail below based on the drawings. 1st
The figure is an explanatory diagram of the drying section, Figure 2 is a plan explanatory diagram of the entire facility,
Figure 3 is an explanatory diagram of the same work process, which is equipped with a cargo receiving section (1) that receives raw paddy, which is the raw material brought in individually and by cargo, from a cargo receiving hopper (2) to a receiving conveyor (3) and an elevator (4). ); a rough sorter (5) that removes impurities from the paddy that is received through the rice grains; a receiving weighing machine (6) that measures the mouth weight and moisture content of each individual and parcel after rough sorting; and the weighing machine. (6)
The raw paddy is fed into the bin through the elevator (7) and the top conveyor (
Storage bins (9) . . . are provided in the cargo receiving section (1), into which the products are carried in via the storage bins (9) and temporarily stored before drying.

It also includes a drying section (10) which is a drying device for drying the raw paddy after receiving the cargo while preventing shell cracking. A stationary normal temperature and humidity dryer (14), a dryer take-out conveyor (15) for temporarily drying the paddy taken out from the dryer (14), and an elevator (16) are connected to the drying section (If
)) is provided, and the semi-dry primary growth in the drying section (10) is configured to send out the dried paddy to the storage section (17).

Furthermore, the storage section (17) is a storage silo (20) into which the semi-dry primary or dry paddy from the drying section (10) is transported and stored via a silo elevator (18) and a feeding conveyor (J9). Then, the semi-dry paddy taken out from the silo (20) via the silo take-out conveyor (21) is returned to the drying section (10).
), and the dried paddy taken out from the silo (20) via the conveyor (2) is carried in via the sorting machine input elevator (23) to remove impurities from the dried paddy and separate it. Selection machine (24) and selection machine (24)
The carefully selected and demixed rice taken out from the factory is sold to a weighing machine (25
) and sorting machine take-out elevator (26) or demixing rice elevator (
27), and a gift awn block 1 for removing awns from the awned paddy taken out from the sorting machine (24).
2q) Naka Bishu, Ryo's heavy words + tatami f valve's Keikichi; Tatsumi Hetan's selected paddy in the adjustment tank (28) is returned to the storage section (January or the preparation and shipping section (30) for the next process) It is configured to be sent.

The adjustment and shipping section (30) includes a huller (32) that transports the selected paddy from the adjustment tank (28) via a paddy elevator (31) and deweighs it, and A oscillating sorter (34) transports the demixed mixed rice via a mixed rice elevator (33) and extracts only good quality brown rice, and a vibratory conveyor (35) and the brown rice elevator transport the brown rice from the oscillating sorter (34). (36)
A grain sorter (
March and a stone removing machine that removes stones from brown rice after grain selection (38)
and a flexible container (40) into which the good brown rice after destoning is fed via the good brown rice elevator (39).
1 shipping tank (41) and packaging shipping tank (42)
), an unripe rice tank (44) into which the unripe rice taken out from the grain sorter (37) is carried in via the unripe rice elevator (43) and the demixing rice elevator (37), and the good brown rice elevator (3).
The machine is equipped with a rice milling machine elevator (45), a brown rice tank (46), and a polished rice tank 148) into which the good brown rice from 9) is fed through the rice milling machine (47).

In addition, (49) is the receiving room, (50) is the office, (51)
(52) is the main operation room, and (52) is the blower (
(53) is a blower room in which the dryer (1) is installed;
(55) is a dryer room in which the storage bin (9) is installed;
) and the dryer room (54), a dust removal room (56)
(57) is a wet dust removal equipment located adjacent to the dryer room (54) and the dust removal room (55).

As shown in FIGS. 1 and 4, a dry air generator (58) that supplies air at room temperature and constant humidity is connected to the bottle (9) and the dryer (
14), and the generator (58) is equipped with an evaporator (59) for cooling and dehumidification and a condenser (60) for restoring normal temperature.
), an outside air intake duct (62) that takes in humid air via the dehumidification adjustment flap (61), and the evaporator (5).
9) and a constant-humidity damper (63) for adjusting the air volume of the constant-temperature and constant-humidity air obtained by mixing the room-temperature dehumidified air generated by the condenser (60) and the humid air from the duct (62), As shown in the figure, in the storage bin (9), a generator (58) is connected to a pre-drying fan (53), and the generator (58) blows air at room temperature and constant humidity.
j1 (by sucking it into the sl and sending it into each bin room (9a), the moisture difference between the raw rice stored in each bin room (9a) is reduced (pre-drying is done). .

In addition, as shown in FIGS. 1 and 5, the dryer (14)
The air at constant temperature and humidity from the generator (58) is fed into the grain drying tank (64), which has a rectangular cross section in plan view, and the moisture in the paddy is dehumidified by the air at constant temperature and humidity to dry the grain. The drying tank (64) has a grain supply port (65) and a grain removal port (66) above and below the drying tank (64).
An air supply duct (67) and an exhaust duct (64) are installed on opposite sides of the
68), and the dry air supply port (58) of the generator (58) is provided.
The air supply duct (67) is connected to 58al, and the exhaust duct (67) is connected to the suction port (69al) of the blower (69).
8) are connected in communication. and drying tank (64)
One end side of an air supply guide (70) with a downward opening and a chevron-shaped end side installed horizontally between the opposite side walls of the drying tank (64) is connected to the air supply duct (67) via a triangular air supply port (71). ) with a triangular exhaust port (7
The generator (5) is connected to the exhaust duct (68) through the air supply port (71) and the air supply guide (70) to feed the paddy stored in the drying tank (65).
8) is configured to be dried by dry air from 8).

This embodiment is constructed as described above, and the paddy in each bin room (9a) is reserved by constant humidity air from the generator (58) during storage in the storage bin (9). Drying is carried out, and in this case, by using room temperature and constant humidity air, the air in the bottle room (9a) is not heated, moisture is removed from the air, and dry air with a constant humidity is sent to increase the amount of paddy. By naturally drying the material to an equilibrium water content with almost no difference in water content, the work efficiency in the dryer (4) in the subsequent process is improved.

Even when drying in the dryer (14), dry air at room temperature and constant humidity can dry the paddy in a state close to natural drying without heating it, which reduces aroma and flavor. It also enables drying that maintains high quality without overdrying or cracking grains.Also, by using such a normal temperature and constant humidity dryer (14), it is possible to dry on low humidity days (weatherless). On a good day), the dryer (14) takes full advantage of the energy in the atmosphere.
It is possible to improve the operating efficiency and save energy, and since no thermal power is used during drying, safe operation can be achieved without worrying about fire or strange odors. Furthermore, the dryer (
14) is a stationary type and does not move the paddy during drying, so it is possible to reduce the number of conveyors, etc., making maintenance inspection and cleaning easier, and improving the durability of the dryer (14). be able to.

In addition, the first (down to about 17% moisture) drying and the second (
When storing semi-dry paddy in the silo (20) between drying (up to about 14.5% water content), each dryer (
14), which enables semi-dry storage in the drying tank (64), and the silo (20) and the drying tank (64)
By making it possible to store semi-dry paddy in both 64) and 64), it is possible to improve the processing capacity of semi-dry paddy.

"Effects of the Invention" As is clear from the above embodiments, the present invention provides a storage bin (9) for storing received grains, a drying device (10) for drying the grains, and a storage silo for storing the dried grains. (20
), a grain drying tank (64) for storing and drying grain, and this drying tank (64)
The drying device (10) is equipped with a stationary room temperature and humidity dryer (14) equipped with a dry air generator (58) that supplies room temperature and humidity air to the dryer (10). Drying can be carried out in a state close to natural drying using dry air at a constant temperature without any drying, and there is no deterioration in quality (safe operation is possible, and the use of stationary drying reduces the need for grain transportation systems, etc.). It is possible to improve durability and reduce costs.

In addition, since it is possible to temporarily store semi-dry grain in the drying device (10), a silo (20) for storing semi-dry grain is used.
) has remarkable effects, such as being able to increase the processing capacity of this facility beyond its limit while maintaining a constant storage amount.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of the drying section, Fig. 2 is a plan explanatory diagram of the entire facility, Fig. 3 is an explanatory diagram of the work process, Fig. 4 is an explanatory diagram of the storage bin section, and Fig. 5 is a cross section of the drying tank. It is a diagram. 9)... 101... 20)... 58)... 64)... Storage Bin Drying section (drying device) Storage silo Drying air generator Drying tank

Claims (2)

[Claims] (1) In a facility equipped with a storage bin for storing received grain, a drying device for drying the grain, and a storage silo for storing the dried grain, there is a grain drying tank for storing and drying the grain, and a drying tank for storing and drying the grain. A grain drying facility characterized in that the drying device is provided with a stationary room temperature and humidity constant dryer equipped with a dry air generator that supplies room temperature and humidity air to a drying tank. (2) In a structure that includes a storage bin for holding received grain, a drying device for drying the grain, and a storage silo for storing the dried grain, the drying device is configured to be capable of storing semi-dry grain. A grain drying facility characterized by comprising: