JPS5851187B2 - Hot air blowing device in grain dryer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION As shown in FIG. 1 of the drawings, downstream chambers 2 having porous walls 2a, 2a arranged in parallel are connected to the bottom left and right sides of the particle storage chamber 1, and a downstream chamber 2 is connected to the right and left sides of the bottom of the grain storage chamber 1. is a grain dryer which is provided with a hot air chamber 3, has an inlet for burner B in the center of the front of the hot air chamber 3, and blows hot air from the inlet to dry the grains descending in the left and right downstream chambers 2. has been generally known.

However, in this type of grain dryer, a large amount of hot air is supplied to the front of the downstream chamber 2, which is close to the hot air inlet, and the hot air does not reach the rear, which is far from the hot air inlet.

As described above, since hot air cannot be uniformly supplied to the front and rear of the downstream chamber 2, there is a drawback that the drying of the grains becomes uneven.

The object of the present invention is to eliminate this drawback and uniformly dry the grains descending in the downstream chamber by uniformly supplying hot air to the front and rear of the downstream chamber.

To explain the embodiment shown in the drawings, side walls 6, 6 are attached to the inlet of the burner B at the center of the front of the hot air chamber 3, which have two rows of shielding walls 4°4 vertically and exhaust ports 5 horizontally in the room. .

Thus, the tip 6a of the side wall 6 is slightly curved outward.

In the drawing, 7 is an exhaust air chamber outside the flow chamber 2, which communicates with the suction fan F on the back of the machine body and sucks and discharges the moisture-containing waste air that has dried the grains across the flow chamber 2 to the outside of the machine. .

8 is a rotor valve provided on the bottom of the flow chamber 2, and 9 is a grain cross-feeding spiral installed horizontally in the valley of the grain collection chamber 10. As a result, the grains that have fallen from the flow chamber 2 into the grain collection chamber 10 are transported to the back of the machine. The grains are transported laterally to the grain lifting cylinder installed in the grain storage chamber 1 and circulated again to the grain storage chamber 1.

In the present invention, the hot air blown into the center of the hot air chamber 3 from the burner B is blocked by the left and right side walls 6, 6, and only a portion of the hot air discharged from the exhaust port 5 is in the front of the downstream chamber 2 near the inlet. Since the hot air is blown onto the flow chamber 2, there is no danger that the front of the flow chamber 2 will be more dry than the rear as in the conventional case, and most of the hot air is guided to the upper and lower side walls 4°4 and the left and right side walls 6, 6. Since the hot air is concentrated rearward from the center of the hot air chamber, the hot air is evenly distributed between the left and right downstream chambers 2°2 without causing a temperature difference, thereby drying the grains in the downstream chamber 2.

As described above, according to the present invention, downstream chambers 2 having porous walls 2a, 2a arranged side by side are connected to the left and right bottoms of the particle storage chamber 1, and a hot air chamber 3 is provided between the left and right downstream chambers 2. , an inlet for burner B is formed in the center of the front of the hot air chamber 3, and in a grain dryer that blows hot air from the inlet to dry the grains descending in the left and right downstream chambers 2, the inlet of burner B is In the hot air chamber, shielding walls 4 are installed on the top and bottom, and side walls 6 with exhaust ports 5 are installed on the left and right sides.The left and right side walls 6, 6 block the hot air and the hot air flows from the exhaust port 5 into the chamber 2.
The hot air is not sent to the front of the hot air chamber 3 to strongly dry it, and combined with the upper and lower shielding walls 4, the hot air is guided deep to the rear of the hot air chamber 3, and the hot air is evenly supplied to the front and rear of the downstream chamber 2.
This produces the effect of uniformly drying the grains descending within the downstream chamber 2.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of an embodiment of the present invention, FIG. 2 is a cross-sectional view thereof, FIG. 1 is a grain storage chamber, 2 is a downstream chamber, 3 is a hot air chamber, 4 is a shielding wall, 5 is an exhaust port, 6 is a side wall, and 10 is a grain collection room.

Claims (1)

[Claims] 1 At the bottom left and right of the grain storage chamber, downstream chambers with porous walls arranged in parallel were connected to each other, and a hot air chamber was provided between the left and right downstream chambers, and an inlet for burner B was formed in the center of the front of the hot air chamber. In a grain dryer, a hot air blowing device is provided in which a hot air chamber is provided with upper and lower shielding walls at the air inlet of burner B, and side walls with exhaust ports on the left and right sides.