JPS6022318Y2 - grain drying equipment - Google Patents

Description

[Detailed description of the invention] In this invention, an upright porous blower tube 2 is arranged in the center of the upright porous tube 1, and an inclined fixed sieve 3 is arranged in a stepped manner between the two tubes 1 and 2. This relates to a grain drying device in which a lower end discharge section 4 and an upper end input section 5 of the same cylinder 1 are connected by a transport device 6.

The upright porous tube 1 and the porous blow tube 2 are formed of a steel plate having countless small ventilation holes 7, and the upper end of the porous blow tube 2 is closed.

A hopper 8 is provided at the upper end input portion 5 of the upright porous cylinder 1, four supply ports 9 are provided in the hopper 8, and the uppermost inclined fixed sieve 3 is arranged directly below each of the four supply ports 9. A four-step spiral staircase can be formed using the uppermost inclined fixed sieves 3.3 and 3.3 as base points, respectively.

The lower end discharge part 4 is provided with a discharge funnel 10, the lower part of the funnel 10 is provided with a grain storage tank 11, and the lower end of the transport device 6 is disposed inside the grain storage tank 11.

The transport device 6 has an upright packet conveyor 1 in an upright root surface 12.
3 is arranged.

In the figure, 14 indicates the basement, 15 indicates the auxiliary heating furnace, and 1
6 is a solar air warmer, 17 is a flexible wheel, 18.
19 is a bellows duct and a fixed duct that connect the warming machine 17 and the multi-hole blower duct 2, 20 is a blower, 21 is a communication duct between the auxiliary heating furnace 15 and the fixed duct 19, 22 is an on-off valve thereof, and 23 is an air The solar tracking device 24 of the warming device 16 is a forward and reverse rotation motor for driving the device 23.

Therefore, when threshed paddy with a moisture content of approximately 23% by a combine harvester or the like is supplied to the grain storage tank 11 and the transport device 6 and the blower 20 are started, the warm air rises inside the porous blower tube 2 and increases the air pressure inside the tube 2, causing the temperature to rise. Air is discharged from numerous small ventilation holes 7, passes through the two cylinders 1 and 2 and the sieve 3, and is discharged to the outside of the upright porous cylinder 1.

In this state, the paddy falls from the upper end feeding part 5 onto the uppermost inclined fixed sieve 3, descends along the same cylinder 3, and is ventilated and dried by the warm air passing through the same cylinder 3.

The paddy falls from the sieve 3 on the top tier onto the sieve 3 on the lower tier, and is ventilated and dried by the warm air even during the fall, descends from the upper tier to the lower tier, falls from the lower end discharge part 4 into the grain storage tank 11, and is similar to the above. The operation is repeated until the rice is dried to a moisture content of about 14%, and the dried paddy is transferred to the rice milling process.

The above operations can be performed continuously by five sets of devices depending on the degree as shown in FIG.

In conventional grain drying equipment, a small amount of stored paddy placed in a storage tank is air-dried and then circulated through the stored paddy, making it difficult to process a large amount by air-drying a large amount.

There was also a drying room using stepped grain plates (Jikko 48).
-14543), the same-flow grain board did not allow air to pass through it, so it was not possible to carry out aerated drying using passing air, and it had a defect that it was likely to cause uneven drying.

This proposal was developed in view of the above-mentioned deficiencies, and since it is constructed as described above, there is no need to put a large amount of harvested paddy into the storage tank, and the aerated drying area can be increased, making it suitable for large-volume drying.
In addition, since a storage tank for paddy rice is not required, there is an advantage that the device can be made relatively compact.

In addition, in this case, since the tilted fixed sieve 3 is used as described above, warm air passes through the cylinder 3, and the passing warm air causes the cylinder 3 to
The grains on the top can be dried through ventilation, resulting in less uneven drying and improved drying efficiency.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing the grain drying device of the present invention, Fig. 2 is an enlarged vertical sectional view of the same device, Fig. 3 is a longitudinal sectional view of the air warmer taken along line A-A in Fig. 1, and Fig. 4 2 is a partial plan view of FIG. 2, FIG. 5 is a plan view of the spiral step-like inclined fixed sieve, and FIG. 6 is a plan view taken along line BB in FIG. 2. 1... Upright porous tube, 2... Upright porous blower tube, 3... Inclined fixed sieve, 4... Lower end discharge section, 5... ...Top end input section, 6...Transportation device.

Claims (2)

[Scope of utility model registration request] (1) An upright porous blower tube 2 is arranged in the center of the upright porous tube 1, and an inclined fixed sieve 3 is arranged in a stepped manner between the two tubes 1 and 2, and the lower end discharge part 4 of the upright porous tube 1 and This grain drying device is formed by connecting the upper end input portion 5 of the same cylinder 1 with a transportation device 6. (2) The grain drying device according to claim 1, wherein the inclined fixed sieves 3 are arranged in a four-row spiral staircase pattern.