JPS6145489B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a grain ventilation drying device for drying grains by sending drying air to grains loaded in a grain tank.

If the amount of grain put into the grain tank is an irregular amount, such as less than half of the grain tank's capacity, the grain ventilation drying device will have a problem with the speed at which the grains are circulated during the drying process. In addition, the airflow becomes abnormally fast, and a blowhole is created that allows the drying air to pass through, preventing the drying air from passing through the layer of grain accumulation. There is a problem that the grain cannot be dried. For this reason, the grain tank is divided into two drying rooms (grain tanks) by a partition wall, and when the amount of grain is small, drying air can be sent to only one of the divided drying rooms. Several methods have been tried, including dividing large quantities of grain into two
When drying grains by placing them in two drying chambers,
The moist drying air that has passed through the grain layer placed in one drying chamber passes through the grain layer placed in the other drying chamber and flows to the air outlet or exhaust fan. There is a problem in that the drying speed of the grains in the two drying chambers becomes uneven, and the drying efficiency is reduced. Therefore, in the present invention, in order to solve these problems, the grain tank is divided into two sections in order to cope with the drying of an irregular amount of grain, and one of the two divided grain tanks (drying room) is However, by filling each of the two separated grain tanks with grains and communicating the drying air supply path, these grain tanks are The purpose is to allow the exhaust air that has passed through each grain tank to flow to the air outlet or exhaust fan without passing through the other grain tank when drying air is applied to the grains in the grain tank. It is something to do.

In order to achieve this purpose, the grain ventilation drying device according to the present invention has a drying air supply port on the front side and an air exhaust port on the rear side.
The grain tank into which the grains to be dried are loaded is installed in two parts, front and rear, and the drying air supply path to the grains loaded into the grain tank is installed at the left and right sides of the lower part of the body cavity. The front end side of the air supply path is connected to the drying air supply port, and the left and right sides are used to vent the inside of each grain tank divided into the front and rear sections. At the same time, the rear end side is blindly closed off with a shielding plate, and long ventilation passages are installed in the front and rear on both sides of the lower part of the body cavity. Blindly shield each inner side to face the outside ventilation part opposite to the inside ventilation part of each grain tank, and connect each rear end to the exhaust port on the rear side of the fuselage behind the aforementioned shielding board. The present invention is characterized in that a gate valve is connected and communicated with each other and is provided in a portion of the left and right exhaust passages or feeding passages corresponding to the partition portions of the two grain tanks mentioned above so as to be openable and closable.

Next, embodiments will be described in detail with reference to the drawings. 1 to 3, reference numeral 1 denotes a machine body of a grain ventilation drying apparatus A according to the present invention, and machine walls 10 surrounding the four circumferences...
It is formed into a box shape by the top plate 11 and the bottom plate 12, and the middle part between the left and right at the lower part of the machine wall 10 on the front side (the left side in Figs. 1 and 2) is provided with dry air. A feeding port 13 is installed, and
An exhaust port 14 is installed at a location corresponding to the supply port 13 on the rear side of the body 1. A hot air generating device 2 that generates hot air as drying air is installed outside the supply port 13, and an exhaust fan 3 is installed at the exhaust port 14.

Reference numeral 4 denotes a grain tank installed in the fuselage 1, and as shown in FIG. However, the lower half part is formed in a shape in which two funnel parts 40, 40 are arranged side by side on the left and right, and further below the funnel parts 40, 40,
The left and right machine walls are connected to an inner ventilation section 41a and an outer ventilation section 41b by a permeable partition wall such as a perforated board or a mesh body.
A third outlet port 43 is formed at the lower end of each of the downstream portions 41, 41 for the grains to be released, and the third outlet port 43 is controlled to open and close by a rotary valve 42. It has the cross-sectional shape shown in the figure, and is formed so as to be continuous in the front-rear direction from the front wall 10 of the fuselage 1 to the rear wall 10 of the fuselage 1. Then, at the bottom of the internal cavity of fuselage 1,
A grain collecting chamber 5 is formed below the rotary valves 42, 42, and the rotary valve 4 is formed therein.
A funnel 50 for collecting the grains fed out with the outflow amount being regulated by the rotations of 2 and 42, and a conveyor 51 for transporting the grains out of the machine are installed.

Reference numeral 6 designates the outer surface of the machine body 1 so as to fry the grains when the grains carried out by the conveyor 51 are returned to the grain tank 1 for circulation and when the grains are newly loaded into the grain tank 4. It is a vertically installed grain lifting machine (bucket elevator), the lower end of which communicates with the terminal end of the carrying out conveyor 51, and the upper end of which is installed horizontally on the top of the machine body 1 in the longitudinal direction. The starting end of the conveyor 60 is connected and communicated with the conveyor 60 for tensioning.
The discharge ports 61 and 62 are opened to the top of the inner cavity of the grain tank 4 described above.

Therefore, the grain tank 4 described above has a partition plate 7 at the intermediate portion in the front-rear direction that follows the cross-sectional shape of the grain tank 4 shown in FIG. The grain tanks 4a and 4b are divided into two grain tanks, and the discharge ports 61 and 62 of the above-mentioned conveyor 60 are equipped to discharge grains into the divided front and rear grain tanks 4a and 4b, respectively. It has been set up.

W is a feeding path installed long in the front and back direction at the left and right center portion of the lower part of the inner cavity of the body 1 so as to send drying air to the grains loaded in the grain tanks 4a and 4b;
The ceiling part and the left and right machine walls are the funnel parts 40, 40 parallel to the left and right sides of the grain tank 1 and the grain flow part 4.
Utilizing the partition walls 1 and 41, a bottom wall 80 formed in the shape of a gutter is disposed on the bottom side so as to fit into the top side of the funnel 50 for collecting grains, and its left and right edges are connected to the left and right sides as described above. It is constructed by connecting to the inner ventilation parts 41a, 41a of the grain flow parts 41, 41 which are parallel to each other, and thereby, as shown in FIG. The left and right sides face each of the inner ventilation portions 41a, 41a,
Further, the rear end is blindly closed using the machine wall 10 on the rear end side of the fuselage 1 as a shield, and the front end is connected and communicated with the hot air supply port 13.

Y and Y are air exhaust passages arranged on both the left and right sides of the lower part of the inner cavity of the body 1, and include the outer ventilation parts 41b, 41b, which are the outer partitions of the above-mentioned flow parts 41, 41, and the funnel parts 40, 40. , left and right machine walls 10, 10 of the machine body 1, and bottom plates 81, 81 that can be spanned between the left and right machine walls 10, 10 of the machine body 1 from the lower ends of the downstream parts 41, 41. As a result, as shown in FIG.
The inner side is made to face each outer ventilation part 41b, 41b of a, 4b. And each exhaust path Y, Y
The front end side is blindly shielded by the machine wall 10 on the front side of the fuselage 1, but the rear end side is equipped with a duct y on the rear face of the machine wall 10 on the rear side of the fuselage 1, which serves as the aforementioned shielding board.
is connected to both the left and right ends of the duct y, and an air exhaust port 14 is provided on the rear side of the fuselage 1.
is installed at the middle portion between the left and right sides of the rear surface of the duct y, thereby connecting and communicating with the exhaust port 14 thereof.

V and V are gate valves that can be opened and closed, and are disposed at intermediate positions between the front and back of the left and right exhaust passages Y, Y, corresponding to the partition plate 7, and can be accessed from the outside of the fuselage 1 by the operating section (not shown). ), it rotates around the hinge 90 and opens and closes.

6 and 7 show another embodiment of the device. This device does not provide the gate valves V, V in the above-mentioned air exhaust paths Y, Y, but installs the gate valve V in the operating section at a portion corresponding to the partition plate 7 at an intermediate portion before and after the hot air supply path W. The structure is the same as that of the previous embodiment except that it can be opened and closed by the operation of (not shown), and each member designated by the same reference numeral is constructed in the same manner as each member of the previous embodiment. .

In addition, in the illustrated example device, 70,7
1, 72 is a fixed partition wall, and 82
is a bottom plate of the feeding path W which is provided auxiliary, and may be omitted in some cases.

Next, to explain the function and effect, when the grain ventilation drying device A according to the present invention described above is small in quantity, as shown in FIG. The grains are loaded and the gate valves V, V installed in the middle of the exhaust channels Y, Y provided on both the left and right sides of the machine body 1 are closed, and the dry air is passed from the drying air supply port 13 to the supply channel W. Either supply dry air to the grain tank 4a on the front side as shown in Figure 7.
If the drying air is supplied from the feeding port 13 to the feeding path W with the gate valve V provided in the middle of the drying air feeding path W in a closed state, the drying air will As shown by the arrows in FIGS. 4 and 6, the air is blown through only the grain tank on the side where grains are stuffed, of the two grain tanks 4a and 4b divided into the front and rear. It becomes flowing. In addition, when there is a large amount of grain to be dried and the grain is loaded into both the divided front and rear grain tanks 4a and 4b, the left and right ventilation channels Y, Y
If the drying air is sent to the feeding path W with the front side and the rear side communicating with each other without partitioning the middle of the feeding path W, the drying air will flow through the front and rear grain tanks. 4a and 4b are blown through to the exhaust air passages Y and Y, respectively, and are discharged from the air exhaust passages Y and Y to the outside of the machine via the air exhaust port 14.

Therefore, according to the present invention, when the amount of grain to be dried is small, the two divided grain tanks 4a, 4
By putting the grains in one of the grain vats in b and drying them,
It is possible to perform the prescribed drying work by preventing the circulation speed from increasing and the drying air from blowing through in a short circuit. This eliminates the inconvenience of drying air (exhaust air) passing through one grain tank and passing through the other grain tank when grains are placed in both grain tanks and dried. The grains in the tanks 4a and 4b can be efficiently dried at substantially the same drying speed.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional plan view of a grain ventilation drying device in which the present invention can be carried out, Fig. 2 is a longitudinal sectional side view of the same, Fig. 3 is a longitudinal sectional front view of the same, and Fig. 4 is a cross-sectional view of one grain tank of the same. Fig. 5 is a cross-sectional side view of the same condition as above, and Fig. 6 is a cross-sectional view of another example when one grain tank is drying. The plan view and FIG. 7 are longitudinal sectional side views of the same. Explanation of drawing symbols A... Grain ventilation drying device, 1...
Airframe, 10... Machine wall, 11... Top plate, 12... Bottom plate, 1
3... Supply port, 14... Air exhaust port, 2... Hot air generator,
3...Exhaust fan, 4...Grain tank, 4a...Front side grain tank, 4
b...Rear side grain tank, 40...funnel, 41...flow path, 41a...inner ventilation part, 41b...outer ventilation part,
42... Rotary valve, 43... Outlet, 5... Grain collection room, 50... Funnel, 51... Conveyor for carrying out, 6
...Grain lifting machine, 60...Conveyor for tensioning, 61, 62
...discharge port, 7...partition plate, 70, 71, 72...partition wall, 80...bottom wall, 81...bottom plate of exhaust passage, 82...bottom plate of supply passage, W...supply passage, Y...exhaust passage , y...Duct, V...Gate valve, 90...Hinge.

Claims (1)

[Claims] 1 A grain tank for storing grains to be dried is installed in the inner cavity of the machine body, which has a drying air supply port on the front side and an air exhaust port on the rear side, and is divided into two parts, front and rear. A feeding path for drying air to be sent to the grains to be poured into the tank is formed long in the left and right center of the lower part of the body cavity, and the front end of the feeding path is connected to the drying air. It is connected to the air supply port, and both left and right sides are made to face the inner ventilation part of each grain tank divided into the front and rear sections, and the rear end is blindly closed with a shielding board, and the left and right sides of the lower part of the body cavity are closed. On both sides, long ventilation passages are arranged in the front and rear, and the front ends of these ventilation passages are blindly closed off, and each inner side is provided with an outer ventilation part facing the inner ventilation part of each grain tank. At the same time, each rear end portion is connected and communicated with the exhaust port on the rear side of the fuselage behind the aforementioned shielding board, and each of the aforementioned two grain tanks in the left and right ventilation passages or feeding passages is A grain ventilation drying device characterized by having a gate valve provided in a portion corresponding to the partition portion so as to be openable and closable.