JP2012135324A - Seed disinfecting facility - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a fault that seeds cannot be efficiently disinfected because of the limited amount of seeds disinfected at a time in a conventional rice seed hot-water disinfecting apparatus adapted to perform hot water dipping of seeds in a hot water tank for a predetermined time (e.g., 10 minutes) and to replace the seeds with the following seeds at the termination of hot water disinfection.SOLUTION: This seed disinfecting facility including a seed cooling tank (11) in a post-process of a hot water disinfecting tank (1) is adapted to transfer the seeds while being dipped in hot water in the hot water disinfecting tank (1) to perform hot water disinfection, then to cool the seeds by transferring the seeds from the cooling start end side to the cooling terminal end side in the seed cooling tank (11) that stores cooling water, and to discharge the seeds finished with cooling in the seed cooling tank (11) by reversing a bucket (12) for storing the seeds.

Description

The present invention relates to a seed disinfection facility .

  In the hot water disinfection device for seed potatoes, temperature control means is connected so that the hot water stretched in the hot water tank is circulated and maintained at a predetermined hot water disinfection temperature. Start pouring hot water at the disinfection temperature or slightly higher temperature into the hot water tank as the temperature adjustment hot water, stop the injection of the temperature adjustment hot water when the temperature rises to the predetermined hot water disinfection temperature, and sow only for a predetermined time It is publicly known that the bath is bathed in warm water (Patent Document 1).

Japanese Patent No. 3448773

  In the conventional apparatus, hot water is immersed in a hot water tank for a predetermined time (for example, 10 minutes) and replaced with the next seed when the hot water disinfection is completed. There was a bug that it was not possible. Therefore, the present invention is intended to solve such a problem.

In the invention of claim 1, after the seed cooling tank (11) is provided in the subsequent process of the hot water disinfection tank (1) and the seed is transferred while being immersed in the hot water in the hot water disinfection tank (1), the hot water disinfection is performed. In the seed cooling tank (11) for storing cooling water, the seed cooling tank (11) is configured to be transferred from the cooling start end side to the cooling end side for cooling, and the seed that has been cooled in the seed cooling tank (11) is stored in the bucket ( 12) Seed disinfection equipment that is configured to invert and discharge .

The invention of claim 2 is the seed disinfection facility according to claim 1, wherein the seed is intermittently transferred while stopping for a predetermined time in the hot water disinfection tank (1) .
The invention according to claim 3 is configured to intermittently transfer seeds while stopping in the seed cooling tank (11) for a predetermined time in conjunction with intermittent transfer of seeds in the hot water disinfection tank (1). Seed disinfection equipment .

In the invention of claim 1, the seeds are transferred while being immersed in the hot water in the hot water disinfection tank (1) to disinfect the hot water, and then transferred from the cooling start end side to the cooling end side in the seed cooling tank (11). Cooling and reversing the bucket (12) to discharge the cooled seeds enables continuous and efficient disinfection of the seeds with hot water and cooling by immersing the seeds in cooling water. I can .

In the invention of claim 2, in addition to the effect of the invention of claim 1, since the seed is exposed to the hot water while the transfer of the seed is stopped, the time for immersing the seed in the hot water can be made constant. Can efficiently disinfect the hot water of the seeds .

According to the invention of claim 3, in addition to the effect of the invention of claim 2 , since the seed is exposed to the cooling water while stopping the transfer of the seed, the time for immersing the seed in the cooling water is made constant. The seed can be cooled efficiently.

Top view of hot water disinfection device and seed cooling device Side view of hot water disinfection device and seed cooling device Process diagram of hot water disinfection process and seed cooling process Circulation diagram of hot water and cooling water Process diagram of drying and shipping process Side view explaining the inside of the drying device

A seed disinfection facility will be described below based on the embodiment shown in the drawings.
The seed disinfection equipment is provided with a hot water disinfection device A, a seed cooling device B, and a drying device C in order from the previous process to the subsequent process. The hot water disinfection apparatus A is provided with a box-shaped hot water disinfection tank 1, and a circulating transfer apparatus 3 for circulating and transferring a large number of seed buckets 2 is provided above the hot water disinfection tank 1.

  The circulating transfer device 3 is in a state in which the seed bucket 2 that forms a large number of holes 2b is lowered and immersed in the hot water in the hot water disinfection tank 1 and the hot water disinfection tank 1 are immersed in the circulating transfer device 3 A transfer device 3a for transferring the seed bucket 2, a lifting device 3b for lifting the seed bucket 2 immersed in the hot water disinfection tank 1 on the transfer end side, and a lowering device 3d for lifting the seed bucket 2 raised by the lifting device 3b And a return device 3c.

The transfer device 3a and the return device 3c are formed by a conveyor, and a large number of seed buckets 2 are placed on the conveyor by a horizontal axis 2a at predetermined intervals.
A reversing cam 4 is provided in the middle of the lifting device 3 b, and the lower portion of the seed bucket 2 is lifted and reversed by the reversing cam 4, and the seed bag P is discharged from the seed bucket 2.

  At the bottom of the hot water disinfection tank 1, hot water jets 6 are arranged at predetermined intervals, and the hot water jet 6 is positioned below the stop position of the seed bucket 2 that is stopped while being intermittently transferred. The hot water is jetted out and the hot water passes through the hole 2b of the seed bucket 2 and acts on the seed (seed pod) accommodated in the net-like seed bag P. In addition, the bottom part of the hot water disinfection tank 1 is configured to be inclined downward toward the middle part in the front-rear direction, and the drainage groove 1c is configured in the middle part.

  In the subsequent process of the hot water disinfection tank 1, a seed cooling device B is provided via a supply chute 5. In the seed cooling device B, a seed cooling tank 11 that is long in the front-rear direction is provided on the rear side of the supply chute 5, and the seed cooling tank 11 is provided with a plurality of cooling buckets 12 from the front side toward the rear side. The cooling bucket 12 has a number of holes 12b and is supported by a horizontal axis 12a so as to be pivotable in the horizontal axis. Then, when the cooling bucket 12 rotates and reverses about the shaft 12a, the seed bag P accommodated in the cooling bucket 12 is accommodated in the next cooling bucket 12.

  Further, an air ejection pipe 15 is provided below the cooling bucket 12 of the seed cooling tank 11, and air is supplied to the air ejection port 15 by the blower 16, and the air is ejected toward the cooling bucket 12 being immersed. It is said.

Next, the seed disinfection process will be described mainly with reference to FIG.
A net-like seed bag P containing seeds is supplied to the seed bucket 2 stopped at the seed bag supply position r in the middle of the lowering device 3d (see FIG. 3 (A)). Then, the seed bucket 2 is lowered from the seed bag supply position r to the inside of the hot water disinfection tank 1 by the lowering device 3d and immersed in the hot water (see FIG. 3B).

  In the hot water disinfection tank 1, the seed bucket 2 is transferred by the transfer device 3a, and the transfer device 3a is intermittently driven. The seed bucket 2 stops at a position facing the hot water jet 6 and is exposed to the hot water jetted in the stopped state, thereby promoting the disinfection action of the seeds in the seed bag P.

  The seed bucket 2 transferred while stopping at each hot water outlet 6 for a set time (1 minute in the present embodiment) is pulled up by the lifting device 3b on the transfer end side. Then, the lower part of the seed bucket 2 is lifted and reversed by the reversing device 4 in the middle of the ascending device 3 b, the seed bag P in the seed bucket 2 is discharged, passes through the supply chute 5, It is supplied into the cooling bucket 12 (see FIG. 3C).

  The empty seed bucket 2 is subsequently transferred upward by the ascending device 3b, then intermittently transferred above the hot water disinfection tank 1 toward the transfer start end by the returning device 3c, and again supplied by the descending device 3d to the seed bag. Circulated and transferred to position r.

The circulating transfer device 3 may be configured to continuously drive at a low speed instead of intermittent driving.
The seed bag P supplied to the cooling bucket 12 of the seed cooling tank 11 is cooled by cooling water. The cooling bucket 12 is configured to be interlocked with the intermittent drive of the circulating transfer device 3, and is rotated and reversed before the next seed bag P is supplied from the hot water disinfection tank 1 to the seed cooling tank 11, and the seed is transferred to the next cooling bucket 12. The bag P is supplied and the seed bag P from the hot water disinfection tank 1 is received. That is, the seed bag P is sequentially transferred to the next cooling bucket 12 by rotating and reversing from the cooling bucket 12 on the cooling end side, and the seed bag P from the hot water disinfection tank 1 is transferred to the cooling bucket 12 on the cooling start end side. I accept it.

In the present embodiment, the seed bags P that have sequentially passed through the five cooling buckets 12 are discharged from the discharge chute 14 and dried by the drying device C in the next step.
According to the seed disinfection device of this embodiment, hot water disinfection can be performed continuously and efficiently while transferring a plurality of seed buckets 2 using a hot water disinfection tank 1 that is long before and after, and seed cooling from the hot water disinfection device A is possible. The seed bag P can be easily supplied to the apparatus B.

  Further, since the circulating transfer device 3 is intermittently driven every set time, the time for which one seed bucket 2 is immersed in hot water can be made constant (about 10 minutes in the present embodiment), and hot water is used at every stop. Therefore, uniform disinfection can be efficiently performed on a large number of seed bags P. Since the cooling bucket 12 and the circulating transfer device 3 are driven in conjunction with each other, the time for immersing the seed bag P in the cooling water can be constant (about 5 minutes in the present embodiment). P can be uniformly cooled.

  In addition, by arranging the hot water spout 6 at every set interval throughout the hot water disinfection tank 1, temperature unevenness in the hot water disinfection tank 1 is prevented and the seeds of the seed bag P in the seed bucket 2 penetrate the hot water. Can be equalized and the hot water sterilization effect can be enhanced. Moreover, by intermittently transporting the transport conveyor 3a, seed immersion and water separation are quickened, so that the immersion sterilization time is accurate and the sterilization effect can be enhanced. That is, in the present embodiment, one seed bucket 2 stops at every 10 hot water jets 6 and is immersed in the hot water disinfection tank 1 for about 10 minutes. The seed cooling tank 11 is immersed for about 5 minutes in order to pass through the five cooling buckets 12.

Moreover, by blowing air into the seed cooling tank 11, it is possible to prevent the temperature rise of the cooling water in the seed cooling tank 11 from being reduced, and the cooling effect can be increased.
Further, since the cooling bucket 12 is driven and reversed every predetermined time and the seed bag P is transferred while being cooled for a predetermined time in the cooling water, the cooling effect can be enhanced.

Next, circulation of hot water and cooling water used in the hot water disinfection tank 1 and the seed cooling tank 11 will be described with reference to FIG.
An overflow tub 21 is provided in the hot water sterilization tank 1, and the hot water that has overflowed into the overflow tub 21 returns to the balance tank 23 via the reflux pipe 22.

  A pump 10 and an in-line heater 9 are disposed in the hot water circulation path 1a, and a boiler 7 and various valves are disposed in the steam supply path 1b, respectively, and steam from the steam supply path 1b to the in-line heater 9 of the hot water circulation path 1a. The hot water of a predetermined temperature is jetted toward the seed bag P of the seed bucket 2 that is stopped during intermittent transfer, and the seeds are disinfected. The temperature of the hot water in the hot water disinfection tank 1 is controlled to about 60 ° C. by a thermometer (not shown).

Further, the cooling water overflowed from the seed cooling tank 11 is configured to return to the balance tank 26 via the overflow basket 24 and the reflux pipe 25.
The cooling water in the balance tank 26 passes through the cooling water circulation path 28 by a pump 27 and can be selectively supplied to the seed cooling tank 11 or the hot water disinfection tank 1 with a valve provided in the cooling water circulation path 28 as appropriate. According to this configuration, the heat efficiency can be improved and the amount of water used can be reduced. In particular, the cooling water stored in the balance tank 26 is used to fill water into the hot water disinfection tank 1 at the start of the next seed disinfection work, and is used to circulate through the seed cooling tank 11 after the seed disinfection work starts. To do.

M and N are water sources for supplying new water to the hot water disinfection tank 1 or the seed disinfection tank 11.
Next, a drying and storage process is demonstrated based on FIG. The seed bag P taken out from the discharge chute 14 of the cooling device B is dehydrated by the dehydrator 51, and then stacked on the net container 46. The net container 46 is drained and sent to the drying device C or the drying chamber 52 of FIG. dry. Next, the net container 46 is sent to the cool room 53 to cool, and then sent to the low temperature storage 53 for storage.

According to the said structure, it can dry, cool, and store continuously with the seed bag P stacked in the net container 46, and it can shorten work time and can improve work efficiency.
Next, the drying apparatus C will be described with reference to FIG.

  A drying tray 41 is provided on one side of the drying chamber 31, and a blower fan 42 and a budding heater 43 are provided on the other side. A warm air passage 44 is provided at the bottom of the drying chamber 31, and the air heated by the heater 43 is sent via the warm air passage 44 by the blower fan 42 and sent to the drying tray 41.

  Further, a container sheet 48 is laid on the net container 46 and a large number of seed bags P27 are stacked, and the net container 46 is placed on the drying cradle 41. A duct hood 47 is placed on the upper part of the net container 46, and the lower part of the duct hood 47 and the upper part of the container sheet 48 are hermetically connected by, for example, a fastener 49 to form a simple drying chamber. The upper part of 47 and the blower fan 42 are connected by a circulation passage 45 so that the drying air is circulated.

Further, the drying cradle 41 is configured by partitioning a drying air passage 41a that is narrow on the lower side toward the entire lower surface of the upper net container 46 by a partition plate 41b, and from the hot air passage 44 toward the net container 46. The drying wind is uniformly fed so that the stacked seed bags P are evenly dried. According to the above configuration, the uniform drying air flows from the lower side to the upper side in the net container 46, and the seed bag P can be uniformly and efficiently dried .

Claims (3)

A seed cooling tank (11) is provided in the subsequent process of the hot water disinfection tank (1), the seeds are transferred to the hot water in the hot water disinfection tank (1) while being immersed in the hot water disinfection, and then seeds for storing the cooling water are stored. The cooling tank (11) is configured to be cooled by being transferred from the cooling start end side to the cooling end side, and the seeds cooled in the seed cooling tank (11) are discharged by inverting the bucket (12) containing the seeds. Seed disinfection equipment configured to do . The seed disinfection equipment according to claim 1, wherein seeds are intermittently transferred while being stopped in the hot water disinfection tank (1) for a predetermined time . The seed disinfection equipment according to claim 2, wherein the seed disinfection equipment is configured to intermittently transfer the seed while stopping in the seed cooling tank (11) for a predetermined time in conjunction with the intermittent transfer of the seed in the hot water disinfection tank (1).

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