JPS5937675Y2 - Grain ventilation drying equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement in a grain ventilation drying device for drying grain by supplying hot air.

The purpose of this invention is to dry grains with high moisture content, such as freshly threshed paddy or wheat, by placing them in a drying tank through which hot air passes through. ,
The grains are exposed to the pressure of hot air and water that passes through them.
It becomes attached to the grates (or mesh) surface of the grain tank,
To solve the problem of uneven drying caused by uneven circulation of grains.

The device of the present invention to achieve this purpose includes installing a drying chamber in the fuselage, which has air permeable bulkheads such as grates or nets that allow air to pass through, on at least the opposite side walls; An air guide path is installed on each outer surface of the air-permeable bulkhead, and one end of each air guide path is connected to an air outlet of a hot air supply device installed at one end of the fuselage, and a switching damper, respectively. communicate with each other end side of those air guide channels,
It communicates with the exhaust port installed on the other end of the fuselage via a switching damper, and by the operation of these switching dampers,
A state in which the hot air flowing from the air outlet of the hot air supply device through the drying room to the air outlet exits from one breathable partition wall of the drying room to the other breathable partition wall, and from the other breathable partition wall to one side. It is characterized by being able to switch between a state in which it passes through the partition wall and a state in which it passes through the partition wall.

Next, an example of the implementation will be explained in detail according to the drawings. 1 is a box-shaped body with an open top side made up of left and right mechanisms 10.10, front and rear mechanisms 11.11, and a bottom plate 12; A grain lifting machine (packet conveyor) 2 is erected on the outer surface of the mechanism 11.

Reference numerals 3 and 3 denote drying chambers that are installed in two sets on the left and right in the inner cavity of the body 1, and have left and right partition walls 30, 30 formed of air-permeable materials such as nets or perforated boards, respectively. The front and rear bulkheads 31 and 31 are made of blind boards, and are narrow in width on the left and right, deep in the top and bottom, and long in the front and rear direction. The chambers 3, 3 are arranged in a ■-shape that opens upward so that the lower ends of the chambers are abutted against each other.

And the open opening 32.3 at the top of each of these drying chambers 3゜3.
2 is connected to the lower end of a guide wall 33 provided in the upper part of the inner cavity of the machine body 1 in the shape of an umbrella facing downward and opening to the left and right when viewed from the front and back direction, and is connected to the lower end of a guide wall 33 provided in the upper part of the inner cavity of the machine body 1 in the shape of an umbrella that faces downward and opens left and right. The grains are supplied from an outlet (not shown) of a tensioning screw conveyor 21 communicating with the cylinder 20 to the top of the umbrella-shaped guide wall 33 to receive the grains distributed to the left and right.

Further, the lower open openings 34° 34 of each of the drying chambers 3, 3 are closed by a peripheral wall 40 of a drum shutter 4 which is horizontally supported on the central part of the bottom of the inner cavity of the body 1 in the longitudinal direction. 4, the shutter 4
Grain flows into the inner cavity of the shutter 4 through the opening 41 provided in the peripheral wall 40 of the drum shutter 4, and as the shutter 4 further rotates, the grain flow flows downward from the outlet 42, and flows downward into the drum shutter 4. It is designed to be discharged to the outside of the machine body 1 by a discharging screw conveyor 5 provided.

The discharging screw conveyor 5 has its terminal end in the discharging direction communicating with the lower end of the grain lifting machine 2, and the grains to be carried out by the carrying out screw conveyor 5 are transferred to the grain lifting machine 2. It can be taken out of the machine from the discharge tube for taking out, or returned to the drying chambers 3, 3 again from the above-mentioned discharge tube for loading via the screw conveyor 21 for loading, and circulated therein.

In addition, 6 and 6B are air guide paths formed on the outer surface of the outer partition wall 30 of each drying chamber 3 by the outer partition wall 30 of each drying chamber 3 and the left and right mechanisms 10, 10 of the machine body 1, Each of these front openings 61 is a vacant space W formed in the interior cavity of the machine body 1 between the mechanism 11 on the front side of the machine body 1 and the front end of the drying chambers 3, 3.
through the empty chamber W to the hot air blowing lower 0 of the hot air supply device 7 provided in the mechanism 11 on the front side of the fuselage 1, each rear opening 6
2) communicates with and merges with a cavity Y formed at the rear end of the body cavity 1, and connects the mechanism 11 on the rear side of the body 1 through the cavity Y;
It communicates with an air exhaust port 8 provided in the.

Reference numeral 9 denotes an air guide path formed on the outer surface of the partition wall 30 inside each drying chamber 3 by utilizing the space formed between the drying chambers 3, 3 arranged side by side on the left and right, and an open opening 91 on the front end side of the air guide path. communicates with the aforementioned vacant room W, and the open port 92 on the rear end side communicates with the aforementioned vacant room Y.

M and M are dampers # (or shutters) provided respectively at the front and rear openings 91 and 92 of the air guide path 9, and as shown in FIG. 3, the front damper M opens the opening 91 and the rear damper In the state where the damper M closes the opening 92, the damper M is connected by a connecting rod m, and is connected via a suitable connecting mechanism such as the connecting rod m to operate an operating rod (not shown) provided on the outer surface of the fuselage 1. As a result, they move back and forth in each of the vacant rooms W and Y, and when one damper M operates to open the opening 91, the other damper M operates to open the opening 92.
The aim is to close the area.

In addition, N-N, N, and N are dampers (or shutters) provided at the front opening 61 and the rear opening 62 of each air guide path 6゜6, as shown in Fig. 3. As shown in FIG. By operating an operating rod that is connected to the connecting rod n and installed on the outer surface of the fuselage 1 through an appropriate linking mechanism, the robot moves forward and backward together within each of the vacant rooms WY, and one side When one damper N operates to close the opening 61, the other damper N opens the opening 62.

In addition, these dampers M and M and N, N and N,
In some cases, the opening/closing operation may be electrically operated by driving a motor by operating the operating section.When doing so, as shown in Figure 3, a When the damper M corresponding to the open port 61 on the front end side of the air guide path 6 is operated to open, and the damper M corresponding to the open port 62 on the rear end side is operated to close, the fuselage 1
The guide is designed so that the dampers N corresponding to the opening ports 61 on the front end side of the air guide passages 6, 6 provided on both the left and right sides of the air guide are operated to close, and the dampers N corresponding to the opening ports 62 on the rear end side are operated to open. It is desirable that the dampers M and M on the side of the air passage 9 and the dampers N, N and N-N on the side of the air guide passages 6 and 6 operate in opposite directions.

In addition, in the illustrated embodiment, the above-mentioned hot air supply device 7
is a furnace that burns fuel with a burner to generate hot air.
An exhaust fan 80 mounted on the aircraft body 1 facing the aforementioned exhaust port 8
This is done by suction.

Next, to explain the function and effect, in the device of the present invention, if the dampers M, M, N, etc. are kept in the state shown in FIG. The hot air passes through the drying chambers 3 and 3 and flows into the air outlet 8 through the air guide path 9 as shown by the arrows in FIGS. 3 and 5.
is used as a hot air supply path, and the air guide paths 6, 6 serve as air exhaust paths that pass through the drying chambers 3, 3, blowing through the drying chambers 3, 3 from the inside of the machine body 1 to the outside. Moreover, if the dampers M, M, N, etc. are in the state shown in FIG. As shown by the arrows in FIGS. 4 and 6, the air guide paths 6 and 6 are used as hot air supply paths, and the air guide path 9 is an exhaust path for the hot air that has passed through the drying chamber 3.3. As a result, it blows through the drying chambers 3, 3 from the outside of the machine body 1 toward the inside of the machine body 1.

Therefore, without changing the installation position of the hot air supply device 7 with respect to the aircraft body 1 or changing the blowing direction of the blower (exhaust fan 80), the air blower
The direction of the hot air blowing through the drying chamber 3.3 fixed to the damper can be switched between forward and reverse, so when drying grains such as paddy and wheat with high moisture content, this damper By alternately switching the direction of hot air transmission at appropriate intervals, uneven drying caused by grains adhering to the air-permeable partition wall can be effectively eliminated.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view of the embodiment of the device of the present invention, Fig. 2 is a longitudinal sectional rear view of the same, Fig. 3 is a transverse plan view, Fig. 4 is a transverse plan view of the same with the damper switched, and Fig. 5. and the sixth
The figure is an explanatory diagram of the action. Explanation of drawing symbols, 1... Aircraft, 2... Grain frying machine, 3.
...Drying room, 6...Outer air guide path, 61...Opening port on the front end side, M...Damper as above 62...Opening port on the rear end side, M...Damper as above 7...Hot air supply device, 70...Air outlet, 8...Air exhaust port, 9...Inner air guide path, 91...Opening port on the front end side, N...Damper as above, 92...Opening port on the rear end side, N...Damper as above, W...Empty room, Y...Empty room.

Claims (1)

[Scope of utility model registration request] The airframe is equipped with a drying chamber equipped with air-permeable bulkheads such as grates or netting on at least opposite side walls, and an air guide path is provided on each outer surface of the air-permeable bulkhead. one end of each air guide path,
An air outlet of a hot air supply device installed at one end of the fuselage, and an air exhaust port communicating with each other via a switching damper, and each other end of the air guide path is installed at the other end of the fuselage; A grain ventilation drying device characterized in that each of the grains is communicated with each other via a switching damper.