JPS6350059B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a grain feeding mechanism in a grain drying device.

(Prior art) Fig. 1 shows a known example, where A is a humidity control tank and B is a flowing drying chamber.A rotary valve C is attached to the lower end of the flowing drying chamber B, The grains were rotated to flow down little by little for circulation drying. However, the power transmission mechanism for rotating the rotary valve C requires a considerable amount of cost, so the present invention No rotation mechanism is attached to this, thereby reducing costs.

Further, Japanese Patent Application Laid-Open No. 55-56585 describes a technique for moving grain by blowing wind from a directional perforated plate.

(Problems to be Solved by the Invention) However, since the former type is provided with the rotary valve C, it is expensive. Also, JP-A-55-
The valve described in Japanese Patent No. 56585 is not much cheaper than the rotary valve C because the grain is blown away using special air.

(Means for Solving the Problems) Therefore, the present invention provides a pair of left and right flow-down type drying chambers 4 at the bottom of a humidity control tank 1 for controlling the humidity of grains.
5 in communication with each other, a hot air supply chamber 12 is provided between the downstream drying chambers 4 and 5, and hot air exhaust chambers 13 and 14 are provided outside the downstream drying chambers 4 and 5. 4 and 5, the grains partially dried in steps 4 and 5 are stacked and circulated in the humidity control tank 1 using a side elevator for drying. A V-shaped receiving gutter 15 is provided, and the left and right sides of the V-shaped receiving gutter 15 are located at the lower end discharge ports 6, 7 of the downstream drying chambers 4, 5.
The lower part of the hot air exhaust chambers 13 and 14 are connected to the inclined bottom plates 8 and 9 of the hot air exhaust chambers 13 and 14. The upper portion of the V-shaped receiving trough 15 is used as a grain feeding mechanism in a grain drying device in which a suction chamber 18 can be switched between suction and non-suction.

(Example) An example of the present invention will be described with reference to the drawings.
is a grain humidity control tank, with funnels 2 and 3 at the bottom.
The upper ends of vertical down-flow drying chambers 4 and 5 are connected to the lower ends of the funnels 2 and 3. The lower ends of the downstream drying chambers 4 and 5 are formed with discharge ports 6 and 7, and both of the discharge ports 6 and 7 are formed to become narrower toward the lower ends, and an inclined bottom plate 8 is provided near the lower end of the discharge ports 6 and 7. , 9 are provided. Gaps 10 and 11 are formed between the discharge ports 6 and 7 and the inclined bottom plates 8 and 9. A hot air supply chamber 12 is provided between the downstream drying chambers 4 and 5, and hot air exhaust chambers 13 and 14 are provided outside the downstream drying chambers 4 and 5. The inclined bottom plates 8 and 9 are both extended outward to form the hot air exhaust chambers 13 and 1.
Form the lower base of 4. The inner sides of the inclined bottom plates 8 and 9 are extended together to form a V-shaped receiving gutter 15, and a conveyor 16 is mounted on the receiving gutter 15. 17 is the receiving gutter 1
5 is the bottom wall of the hot air supply chamber 12 installed on top of the hot air supply chamber 12. The air between the receiving gutter 15 and the bottom wall 17 flows into the suction chamber 1
8, and a suction fan 19 is installed on one side of the suction chamber 18.
is attached, a burner is attached to the hot air supply chamber 12, and when the suction fan 19 is rotated, the hot air from the burner is transferred from the hot air supply chamber 12 to the downstream type drying chamber 4,
5 to reach the hot air exhaust chambers 13 and 14,
The suction fan 19 is passed between the gaps 10 and 11.
It is used to remove it by suction.

(effect) Next, we will discuss the effect.

Since the present invention has the above configuration, when grains are thrown into the humidity control tank 1 using a bucket elevator (not shown), the grains are poured into the funnel 2,
It flows into the down-flow drying chambers 4, 5 through three parts, and reaches the lower end discharge ports 6, 7 of the down-flow drying chambers 4, 5. In this case, in the case of a normal drying chamber, rotary valves C and C are provided as shown in FIG. , nothing corresponding to the rotary valves C, C is provided. Therefore, what flows down from the discharge ports 6 and 7 reaches the inclined bottom plates 8 and 9;
The degree of inclination of is determined so that the grain does not flow down at the angle of repose, so as shown in Figure 4, it stops without flowing. Therefore, if grains are loaded one after another, the grains stop at the lower end discharge ports 6 and 7 and can be loaded up to the top of the humidity control tank 1.

When this state is reached, the tensioning operation is stopped and the suction fan 19 is rotated.The air in the suction chamber 18 is sucked by the suction fan 19, so that the air in the hot air exhaust chambers 13 and 14 is removed from the gap between the suction fan 19 and the suction fan 19. 10 and 11, thereby breaking the angle of repose, causing the grain to flow and drying it.

That is, if the rotation of the suction fan 19 is stopped, the grains will stop flowing down, and if the suction fan 19 is rotated, the grains will flow down, and at the same time, drying air is supplied to perform circulation drying. It is something.

(Effects) The present invention provides a pair of left and right flow-down type drying chambers 4 and 5 in communication with each other at the lower part of a humidity control tank 1 for controlling the humidity of grains, and between the flow-down type drying chambers 4 and 5. A hot air supply chamber 12 is provided, and hot air exhaust chambers 13 and 14 are provided outside the downflow drying chambers 4 and 5, and the grains partially dried in the downflow drying chambers 4 and 5 are controlled in humidity by a side elevator. In this structure, a V-shaped receiving gutter 15 leading to the elevator is provided at a position below the hot air supply chamber 12, and a V-shaped receiving gutter 15 is provided on both left and right sides of the V-shaped receiving gutter 15. extends below the lower end discharge ports 6, 7 of the downstream drying chambers 4, 5, and extends from the inclined bottom plates 8, 9 of the hot air exhaust chambers 13, 14.
connected to the lower end discharge ports 6, 7 and the inclined bottom plate 8,
9 is formed in the gaps 10 and 11 without rotary valves, and the V-shaped receiving trough 15 has a suction chamber 18 that can be switched between suction and non-suction. Suction chamber 1 above mold receiving trough 15
Circulating drying can be performed simply by switching the air conditioner 8 between suction and non-suction, which further reduces costs. Also, since there is no rotating valve, it is possible to prevent broken rice from occurring.

[Brief explanation of drawings]

Fig. 1 is a known example, Fig. 2 is a vertical front view of the main part, Fig. 3 is a vertical perspective view of the main part, Fig. 4 is a diagram of the state in which rice grains do not flow down at the angle of repose, and Fig. 5 is the same flow. FIG. Explanation of symbols, 1... Humidity control tank, 2... Funnel, 3... Funnel, 4... Downstream drying room, 5... Downstream drying room, 6... Outlet, 7... Outlet, 8...
... Slanted bottom plate, 9... Slanted bottom plate, 10... Gap, 1
1... Gap, 12... Hot air supply room, 13... Hot air exhaust room, 14... Hot air exhaust room, 15... Receiving gutter, 1
6... Conveyor, 17... Bottom wall, 18... Suction chamber, 19... Suction fan.

Claims (1)

[Claims] 1 A pair of left and right flow-down type drying chambers 4 and 5 are provided in communication with each other at the bottom of a humidity control tank 1 for controlling the humidity of grains, and a hot air supply chamber 1 is provided between the flow-down type drying chambers 4 and 5.
2, hot air exhaust chambers 13 and 14 are provided outside the downstream drying chambers 4 and 5, and the partially dried grains in the downstream drying chambers 4 and 5 are transported to the humidity control tank 1 by a side elevator. A V-shaped receiving gutter 15 is installed below the hot air supply chamber 12 and extends to the elevator.
The left and right sides of the V-shaped receiving gutter 15 extend below the lower end discharge ports 6, 7 of the downstream drying chambers 4, 5 and are connected to the inclined bottom plates 8, 9 of the hot air exhaust chambers 13, 14, The lower end discharge ports 6, 7 and the inclined bottom plates 8, 9 are formed in gaps 10, 11 without rotary valves, and above the V-shaped gutter 15 is a suction chamber 18 that can be switched between suction and non-suction. Grain feeding mechanism in equipment.