JPS5911933Y2 - Opening/closing valve for grain loading and ventilation drying - Google Patents

Description

[Detailed description of the invention] In this invention, an internal air suction blower 2 is installed on the ceiling side of the grain dryer box 1, and grain flow-through ventilation drying passages 3, 3 are installed in the lower part.
In a cage drying device provided with a grain air transport passage 4 leading from the bottom to the ceiling, a plurality of inlet opening/closing plates 5 are freely movable at one side edge of the upper entrance 3' of the downstream type ventilation drying passages 3, 3. A shaft support 5' is provided on the common central axis a, and a counterweight 6 is provided on the opening and closing plate 7 to support the opening and closing plate 7 in a Yajirobe shape, and fan-shaped mirror plates 7, 7 are provided at adjacent ends of the opening and closing plate 5. The present invention relates to an on-off valve provided with a.

The balance weight 6 is a plate with the same shape as the opening/closing plate 5 (not shown).
It is preferable to balance the shaft support 5' in an umbrella-like or downward gutter-like manner with an opening angle of 90 degrees, or to provide a balance weight 6 at one end of the mirror plate 7 so that the opening angle of the fan-shaped mirror plate 7 is 90 degrees. .

The upper inlet 3' is connected to grain inclined guide plates 8, 8' as shown in the figure.
It is formed by vertical walls 9 and 9' provided at the lower end, and above one vertical wall 9', the upper end of the opening/closing plate 5 is pivoted by a hinge, and the upper end of the same wall 9' is closed by the opening/closing plate 5. Install a window.

The ventilation drying passages 3, 3 are provided in an inverted eight-shape, and each drying passage 3 is formed by upper and lower meshes 10 and 10'.

In the figure, 11 indicates a rotary valve installed at the lower end of the drying passages 3, 3, 12 a screw conveyor, 13 a hot air generator, 14 a hot air outlet, and 4' a rotary valve of the grain air transport passage 4. The upper end opening, 4″ is the lower end opening of the transport path 4, 1
Reference numeral 5 denotes a rotary blade for frying grains provided at the lower part of the lower end opening 4''.

Therefore, when loading grains into the inside of the machine box 1, the grains are introduced from the outside into the screw conveyor 12 or the grain frying rotary blade 15, and an upward air current is generated inside the machine box 1 which operates the internal air suction blower 2. The opening/closing plate 5, which is in an equilibrium state (tilted state) shown by the solid line in the figure, rotates 45 degrees by the airflow rising through the inlet 3', stops at the stopper 16, and becomes horizontal.
′ is occluded.

Initially, the plurality of opening/closing plates 5, 5.5 are all horizontal and the inlet 3' is blocked over its entire length, so the rising air moves up the air transport path 4 and increases its ascending speed.
5, the supplied grains are fried slightly above the lower end opening 4'', and are air-transported upward by the rising air of the transport path 4, and transported from the upper end opening 4 into the inside of the box 1.
7 allows the grain to be transported to be dropped onto the inclined plates 8, 8' and the closing plate 5, and then to be stuffed into the box 1.

During this loading, the grains are not loaded uniformly over the entire length of the closed entrance 3', but depending on the size of the loaded amount, the grains are
As shown in FIG. 4, the angles of inclination are different.

In other words, the larger the loading capacity of the opening/closing plates 5, the more the inclination is, and the gap at the inlet 3' caused by the inclination is clogged with grains, and the rising airflow remains blocked. The mutually adjacent ends of the inclined opening/closing plate 5 and the horizontal opening/closing plate 5 are closed by the fan-shaped mirror plate 7, so that no upward air current rises through the adjacent portions.

After such a state, when the loaded grains 18 loaded on the opening/closing plates 5, 5.5 and the inclined plates 8, 8' reach a predetermined amount, the opening/closing plate 5 rotates and becomes vertical. side wall 9'
The inlet 3' is completely opened, and the grains enter the ventilation drying path 3 through the inlet 3', pass through the rotary valve 11, the screw conveyor 12, and the rotary vane 15, and then enter the air transport path 4.
It is air-transported through the upper end opening 4', passes through the glass saw 17, and circulates over the shank grain 18.

Since the present invention is constructed as described above, the opening/closing plate 5 can be sensitively operated by the upward airflow generated by the internal air suction blower 2 when grains are loaded into the grain dryer box 1, and the population 3'
It is possible to quickly block the input grain and stuff it into the machine box 1 by pneumatic transport, and even when one of the blocking plates 5 is opened by the loaded grain, the other plates 5 do not close the entrance 3'. Since the fan-shaped mirror plates 7, 7 can close the adjacent parts, the grain can be stretched smoothly without the risk of passing upward air currents through the inlet 3' due to uneven tensioning of the grain.

[Brief explanation of the drawing]

Figure 1 is a longitudinal cross-sectional view of the grain drying device of the present invention, which is equipped with an on-off valve for grain filling and ventilation drying, and Figure 2 is a vertical cross-sectional view of the grain drying device of the present invention, which is shown in Figure 1 A-A.
Figure 3 is a front view of the opening/closing valve;
The figure is a perspective view of the same valve, and FIG. 5 is a partially enlarged perspective view of the same valve. 1... Grain dryer box, 2... Internal air suction blower, 3... Grain downstream ventilation drying path, 4... Grain air transport path, 3'... Upper inlet, 5... Inlet Opening/closing plate, a...
・Common center axis line, 5'... Pivotal support, 6... Balance weight,
7...Fan shaped mirror plate.

Claims (3)

[Scope of utility model registration request] (1) A grain dryer box 1 with an internal air suction blower 2 installed on the ceiling side, grain flow-through ventilation drying passages 3, 3 at the bottom, and a grain air transport passage 4 leading from the bottom to the ceiling side. In the drying device, the above-mentioned downstream type ventilation drying path 3,
A plurality of inlet opening/closing plates 5 are freely movably supported on one side edge of the upper entrance 3' of 3 on a common central axis a, and a counterweight 6 is provided on the opening/closing plates 5, so that the opening/closing plates 5 can be moved freely. This opening/closing valve is supported in a jirobei shape and has fan-shaped mirror plates 7, 7 provided at adjacent ends of the opening/closing plate 5. (2) The opening and closing according to claim 1, in which the balance weight 6 is a plate having the same shape as the opening and closing plate 5, and is balanced in a downward gutter shape with an opening angle of 90 degrees around the pivot support 5'. valve. (3) The opening/closing valve according to claim 1, in which the fan-shaped mirror plate 7 has an opening angle of 90 degrees and a counterweight 6 is provided at one end of the fan-shaped mirror plate 7.