JP2009022185A5 - - Google Patents

Description

Seed disinfection equipment

  The present invention relates to a seed disinfection facility for disinfecting seeds by immersing them in warm water.

Hot water disinfection tank for storing hot water, cooling tank for storing cooling water, cooling water supply means for supplying cooling water to the cooling tank, and overflow when the cooling water in the cooling tank exceeds a predetermined amount A recovery tank that recovers the cooling water via the cooling water overflow path, a storage tank that is supplied with water from the recovery tank via the water supply path, and a hot water supply path that supplies the water from the storage tank to the hot water disinfection tank There is known a seed disinfection device provided with a heater for heating water flowing through the hot water supply path, and a return path for supplying hot water from the hot water disinfection tank to the hot water supply path via a storage tank (for example, Patent Documents). 1).
JP 2006-158302 A

According to the above background art, the hot water flowing through the return path discharged from the hot water disinfection tank is once mixed with the cooling water recovered through the cooling water overflow path and recovered into the recovery tank, so the temperature decreases, When supplying again to the hot water disinfection tank through the hot water supply path, it is necessary to heat with a large amount of heat by the heater in order to increase the temperature to a desired temperature, which may increase the running cost.
Accordingly, an object is to reduce running costs and to perform uniform disinfection efficiently.

In order to solve the above problems, the present invention has taken the following technical means.
That is, the invention according to claim 1 includes a hot water disinfection tank (1) for storing hot water, a cooling tank (10) for storing cooling water, a number of seed buckets (2) for storing seeds, and the seed bucket. A circulation transfer device (3) for circulating and transferring (2) in the hot water disinfection tank (1) is provided, and the circulation transfer apparatus (3) lowers the seed bucket 2 in the hot water disinfection tank (1). Soaking the seed bucket (2) in a hot water disinfection tank (1) in an intermittent manner so that the transfer stop time is longer than the transfer time, and the hot water disinfection tank (1) The seed bucket (2) immersed in the interior was raised, and the seed bucket (2) that was raised was returned to the conveyance start end side .

The invention according to claim 2 is characterized in that the circulating transfer device (3) is configured to continuously transfer and return the raised seed bucket (2) to the conveyance start end side. It was .
The invention according to claim 3 is the seed disinfection facility according to claim 1 or 2, wherein the transfer stop time can be changed.

Moreover, the invention which concerns on Claim 4 provided the hot water spout (13) in the bottom part of the hot water disinfection tank (1) below the stop position of the seed bucket (2) stopped by intermittent transfer. To a seed disinfection facility according to any one of claims 1 to 3.
Moreover, the invention which concerns on Claim 5 provides the hot water pipe (22) extended in the longitudinal direction of a hot water disinfection tank (1), provided the hot water spout (13) in this hot water pipe (22), and the hot water disinfection tank (1 ), The seed disinfection facility according to claim 4, wherein an air ejection pipe (19) is arranged below the seed bucket (2) to be stopped and intersects with the hot water pipe (22) in plan view.

Moreover, the invention which concerns on Claim 6 is a cooling water which overflows when the water supply means (18) which supplies a cooling water to a cooling tank (10), and the cooling water in a cooling tank (10) becomes more than predetermined amount. A recovery tank (36) for recovering water through a cooling water overflow path (35), a switching valve (27) to which water from the recovery tank (36) is supplied via a water supply path (37), and the switching A hot water supply path (28) supplied with water from the valve (27) to the hot water disinfection tank (1), a heater (30) for heating water flowing through the hot water supply path (28), and hot water disinfection A return path (26) for supplying hot water from the tank (1) to the switching valve (27) is provided, and the switching valve (27) supplies water from the water supply path (37) to the hot water supply path (28). And a state of supplying hot water from the return path (26) to the hot water supply path (28) It was seed disinfection equipment according to any one of claims 1 to 5 which is configured to switch.
Moreover, the invention which concerns on Claim 7 provides the water temperature sensor (42) which detects the temperature of the cooling water in a cooling tank (10), and the temperature of the cooling water by detection of this water temperature sensor (42) is more than preset temperature. In this case, a control unit (43) for controlling the water supply means (18) to supply the cooling water is provided, and the supply position of the water supply means (18) and the overflow port are arranged at the ends facing each other in the cooling tank (10). A seed disinfection facility according to claim 6 is provided.

According to the invention of claim 1, since the seed bucket (2) is intermittently transferred so that the transfer stop time is longer than the transfer time in the state where the hot water disinfection tank (1) is immersed, uniform disinfection Can be performed efficiently.
According to the invention of claim 2, in addition to the effect of the invention of claim 1, the transfer speed for transferring the raised seed bucket (2) to the conveyance start end side is immersed in the hot water disinfection tank (1). The seed bucket (2) can be moved faster than the transfer speed for intermittent transfer, and the cost can be reduced by reducing the number of empty seed buckets (2).
According to the invention of claim 3, in addition to the effect of the invention of claim 1 or claim 2, the total time that the same seed bucket (2) is immersed in the hot water disinfection tank (1) by changing the transfer stop time is calculated. The seed disinfection time can be changed according to the seed varieties. Further, the immersion time can be easily changed without changing the transfer speed during transfer.
According to the invention of claim 4, in addition to the effect of the invention of any one of claims 1 to 3, the seed bucket (2) can be retained for a long time above the hot water outlet (13), The germicidal effect of seeds can be enhanced.
According to the invention of claim 5, in addition to the effect of the invention of claim 4, temperature unevenness in the hot water disinfection tank (1) can be suppressed and air is ejected toward the various child buckets (2). All seeds can be evenly stirred.

According to the sixth aspect of the present invention, since the hot water from the return path (26) can be switched to the hot water supply path (28) as it is by the switching valve (27), the hot water from the return path (26) can be switched . While suppressing the temperature drop, the hot water can be heated by the heater (30) and supplied again to the hot water disinfection tank (1), the amount of heating by the heater (30) can be suppressed, and the running cost can be reduced. Can be planned.
According to the invention concerning Claim 7 , in addition to the effect of the invention concerning Claim 1, while being able to maintain the temperature of the cooling water in a cooling tank (10) desired, the seed in a cooling tank (10) is cooled. Since the water from the water supply means (18) can be efficiently supplied into the cooling tank (10) while efficiently discharging the water whose temperature has increased from the overflow port, the seed cooling effect can be enhanced. . Further, since the water whose temperature has risen can be efficiently recovered from the overflow port into the recovery tank (36), the temperature of the water supplied from the recovery tank (36) to the hot water supply path (28) via the water supply path (37) is increased. Therefore, the amount of heating by the heater (30) can be suppressed, and the running cost can be reduced.

One embodiment of the present invention will be described below.
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. In addition, the said hot water disinfection tank 1 becomes a structure which can accommodate 11 seed buckets 2 in a row. In addition, the seed bucket 2 is configured to contain a net-like seed bag P for storing seeds for each predetermined amount.

  The circulating transfer device 3 has a lowering device 3d for lowering the seed bucket 2 which forms a large number of holes on the transfer start end side and immersing the seed bucket 2 in the hot water in the hot water disinfection tank 1, and a seed immersed in the hot water disinfection tank 1. A transfer device 3a for transferring the bucket 2, a raising device 3b for raising the seed bucket 2 immersed in the hot water disinfection tank 1 on the transfer end side, and a seed bucket 2 raised by the raising device 3b to the lowering device 3d And a return device 3c.

  The transfer device 3a includes a guide rail portion 4 that receives an edge portion 2a provided at the upper end of the seed bucket 2 from the lower left and right sides, and a chain-type transfer conveyor 5 for transferring the seed bucket 2 at the transfer start end portion. Provided. The transfer conveyor 5 includes a pressing protrusion 5a that transfers the seed bucket 2 to an appropriate position in the circuit path, and the pressing protrusion 5a is fixed to the right and left of the edge of the seed bucket 2 in the horizontal direction. The seed bucket 2 is transported by pushing it, and the seed bucket 2 on the lower transfer side is sequentially pushed by the seed bucket 2 on the upper transfer side, and the seed bucket 2 is transferred in the hot water disinfection tank 1. Yes.

  The elevating device 3b is provided with a chain type elevating conveyor 6 provided on the right and left with lifting projections 6a on which the fixed shaft 2b of the seed bucket 2 is caught at the end (transfer end) of the guide rail portion 4. Therefore, by driving the lifting conveyor 6, the fixed shaft 2b of the seed bucket 2 at the terminal end (transfer terminal) of the guide rail portion 4 is lifted by the lifting projection 6a, and the seed bucket 2 is lifted. The ascending conveyor 6 is triangular in a side view provided with an oblique movement path (circulation path) that moves in the transfer direction of the transfer device 3a as the seed bucket 2 is raised from the rising start position where the lifting protrusion 6a is caught by the fixing shaft 2b. It goes around with the round path of the shape. Further, reversing cams 7 for reversing the seed bucket 2 in the middle of the oblique movement path are provided on the left and right, and when the seed bucket 2 is lifted, the reversing cam 7 is one of the fixed shafts 2b on the edge 2a of the seed bucket 2. By pressing down on the side (the transfer direction side of the transfer device 3a, the seed cooling device B side) from the upper side, the seed bucket 2 is directed toward the seed cooling device B with the fixed shaft 2b as a fulcrum. The seed bag P in the seed bucket 2 is discharged to the cooling bucket 8 of the seed cooling device B. A guide plate 9 is provided to guide the hot water dripping from the seed bucket 2 rising or reversing from the upper end of the hot water disinfection tank 1 to the position of the reversing cam 7 to the hot water disinfection tank 1. By this guide plate 9, the hot water dripping from the seed bucket 2 is returned to the hot water disinfection tank 1 to suppress the release of heat in the hot water disinfection tank 1, and the hot water dripping into the cooling tank 10 of the seed cooling device B. Decrease in cooling efficiency can be prevented.

  The return device 3c and the lowering device 3d are configured to include a chain-type return conveyor 11 provided on the right and left with a transporting protrusion 11a on which the fixed shaft 2b of the seed bucket 2 is hooked. The conveying protrusions 11a are arranged opposite to the front and rear in the circumferential direction of the return conveyor 11, and are configured to hold the fixing shaft 2b between the front and rear protrusions 11a. Accordingly, the seed bucket 2 that has been raised to the upper end of the lifting conveyor 6 of the lifting device 3b is moved down to the transfer start end side of the transfer device 3a after the return conveyor 11 is inherited, and then lowered to the middle of the lowering path. At the seed bag supply position r. At the seed bag supply position r, the seed bucket 2 is positioned above the hot water disinfection tank 1, and an operator supplies the seed bag P to the seed bucket 2. When the transfer device 3a is actuated to create a space for accommodating the seed bucket 2 at the transfer start end, the return conveyor 11 is actuated to lower the seed bucket 2 at the seed bag supply position r, It is dropped and supplied from the lower end of the return conveyor 11 to the hot water disinfection tank 1. Note that the seed bucket 2 waiting at the seed bag supply position r is inclined such that the lower front side contacts the guide 12 attached to the hot water disinfection tank 1 and the upper opening portion faces the front side. Thereby, an operator can supply seeds (seed bags P) to the seed bucket 2 easily. Further, since the seed bucket 2 is tilted, the seed bucket 2 can be set to a height at which the seed bucket 2 is not immersed in the hot water of the hot water disinfection tank 1 and the height of the opening of the seed bucket 2 can be set as low as possible. It is easy to supply seeds (seed bags P) to the bucket 2.

  Further, when the seed bucket 2 at the seed bag supply position r is lowered and dropped from the lower end of the return conveyor 11 to the hot water sterilization tank 1, the edge 2a of the seed bucket 2 collides with the guide rail portion 4 to generate noise. There is a possibility that the edge 2a is deformed due to the occurrence or impact. Therefore, the ridge raised on a part of the bottom surface of the hot water sterilization tank 1 so that the bottom of the seed bucket 2 contacts the bottom surface of the hot water sterilization tank 1 before the edge 2a of the seed bucket 2 collides with the guide rail part 4. If the bottom part of the seed bucket 2 that falls on the raised part first comes into contact with the raised part, the impacting sound is suppressed because the colliding part is underwater, and the edge 2a is prevented from being deformed and circulated and transferred. The transfer of the seed bucket 2 by the device 3 can be optimized.

  The transfer device 3a intermittently transfers a plurality of seed buckets 2 simultaneously, whereas the return device 3c and the lowering device 3d continuously transfer a single seed bucket 2 to the seed bag supply position r. It is the composition to do. Therefore, the transfer speeds of the return device 3c and the lowering device 3d are set faster than the transfer speed of the transfer device 3a. By reducing the number of empty seed buckets 2, the cost can be reduced and the temperature of the hot water disinfection tank 1 is increased. Since the number of empty seed buckets 2 is small, the empty seed bucket 2 is less likely to get in the way when the operator visually recognizes the disinfection status and operation status in the hot water disinfection tank 1.

  Moreover, the transfer of the seed bucket 2 that is intermittently transferred by the transfer device 3a is set so that the time in the transfer stop state is longer than the time during the transfer. Therefore, the seed bucket 2 can be retained for a long time above the hot water outlet 13 described later in the hot water disinfection tank 1, and the sterilizing effect of the seed can be enhanced. In addition, by increasing the transfer stop time of the transfer device 3a, the stop time of the ascending device 3b and the descending device 3d can be set longer so that the seed bucket 2 is stopped at the seed bag supply position r. The time can be set longer, and the seed (seed bag P) can be easily supplied to the seed bucket 2 that is stopped. The transfer stop time of the transfer device 3a can be changed by adjusting means, and the total time that the same seed bucket 2 is immersed in the hot water disinfection tank 1 can be changed by changing the transfer stop time. Therefore, the disinfection time of seeds can be changed according to the seed varieties (for example, soaked glutinous rice seeds are soaked for 10 minutes and soaked glutinous rice seeds for 6 minutes). Thereby, immersion time can be changed easily, without changing the transfer speed during transfer of the transfer apparatus 3a. The transfer device 3a, the lifting device 3b, the return device 3c, and the lowering device 3d are operated by a common drive source (motor).

  Further, when an emergency stop occurs due to a failure or inspection of the apparatus during seed disinfection work, control is performed to measure the emergency stop time and add it to the disinfection time. Therefore, the stop time of the intermittent transfer is shortened by the transfer device 3a by the amount of the emergency stop. At this time, if the set disinfection time is reached during an emergency stop, an alarm means such as a lamp warns. Therefore, seed damage such as seed cracking can be prevented by immersing the seed in hot water longer than necessary.

  At the bottom of the hot water disinfection tank 1, hot water jets 13 are arranged at predetermined intervals, and the hot water jet 13 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 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 intermediate part in the front-rear direction, and the drainage groove 14 is configured in the intermediate part.

  In the subsequent process of the hot water disinfection tank 1, a seed cooling device B is provided via a supply chute 15. The seed cooling device B is provided with a seed cooling tank 10 that is long in the front-rear direction on the rear side of the supply chute 15, and the seed cooling tank 10 is provided with a plurality of cooling buckets 8 from the front side toward the rear side. The cooling bucket 8 forms a large number of holes and is supported by a horizontal axis 8a so as to be rotatable in the horizontal axis. Then, when the cooling bucket 8 rotates and reverses about the shaft 8a, the seed bag P stored in the cooling bucket 8 is stored in the next cooling bucket 8. In addition, the cooling bucket 8 is rotated twice small when reversed, and the seed bag P is reliably discharged. A partition wall 16 for partitioning the inside of the tank is provided for each storage portion of each cooling bucket 8 in the cooling tank 10, and the partition wall 16 is higher on the seed discharge side (discharge chute 17 side). The cooling water supply port 18 for supplying new water to the cooling tank 10 supplies water at the end of the seed discharge side (discharge chute 17 side) in the seed cooling tank 10. The cooling water from the water supply port 18 is sequentially supplied from the discharge side section partitioned by the partition wall 16 in the cooling tank 10.

  When the sensor detects that the seed bucket 2 has been lifted by the lifting device 3b and arrived just before being reversed by the reversing cam 7, the cooling bucket 8 closest to the hot water disinfection device A is reversed and then returned to its original state. The seed bucket 2 rises and is reversed by the reversing cam 7. Thereby, the seed of the cooling bucket 8 can be supplied to the next cooling bucket 8 immediately before the seed is supplied from the seed bucket 2 to the cooling bucket 8, and the cooling time of the seed by the cooling bucket 8 can be extended. The cooling effect can be enhanced.

  The volume of the cooling bucket 8 is set larger than the volume of the seed bucket 2. Therefore, since the volume of the seed bucket 2 is small, it is possible to efficiently use hot water by reducing unnecessary portions in the hot water disinfection tank 1 where the seed bucket 2 is not supplied. Moreover, since the volume of the cooling bucket 8 is large, stirring of seeds is facilitated by air from an air outlet 19 described later, and the cooling effect is enhanced.

  In addition, an air ejection pipe 20 is provided below the cooling bucket 8 of the cooling tank 10 so that air is supplied to the air ejection port 19 by a blower 21 and the air is ejected toward the cooling bucket 8 being immersed. Yes. Moreover, the hot water disinfection tank 1 is also provided with an air ejection pipe 19, and the air ejection pipe 19 is arranged so as to intersect (orthogonally) in a plan view above the hot water pipe 22 provided with the hot water ejection port 13. . Since the hot water pipe 22 extends in the longitudinal direction (front-rear direction) of the hot water disinfection tank 1 and the hot water outlet 13 ejects hot water to the left and right, convection in the short direction (left-right direction) of the hot water disinfection tank 1 It is generated uniformly over the whole area, and the temperature unevenness in the hot water disinfection tank 1 can be suppressed. The air ejection pipe 19 is located below the various child buckets 2 to be stopped, and all the seeds can be evenly stirred by ejecting air toward the various child buckets 2.

  The blower 21 is common to the cooling tank 10 and the hot water disinfection tank 1, and a long contact tube 23 is provided before and after contacting the air jet pipe 19 of the hot water disinfection tank 1 on the outer surface (side surface) of the hot water disinfection tank 1. Air is supplied through With this contact tube 23, the temperature of the air supplied to the hot water disinfection tank 1 can be raised, and the temperature drop in the hot water disinfection tank 1 is prevented.

Next, the seed disinfection process will be described.
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. Then, the seed bucket 2 is lowered from the seed bag supply position r into the hot water disinfection tank 1 by the lowering device 3d and immersed in the hot water.

  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 13 and is exposed to the hot water sprayed in the stopped state, thereby promoting the disinfection action of the seeds in the seed bag P.

  The seed bucket 2 transferred while stopping for a set time at each hot water outlet 13 is pulled up by the lifting device 3b on the transfer end side. Then, the seed bucket 2 is reversed by the reversing device 7 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 15, and enters the cooling bucket 8 on the start end side of the cooling tank 10. Supplied.

  The emptied 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 side 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 8 of the cooling tank 10 is cooled by cooling water. The cooling bucket 8 is configured to be interlocked with the intermittent drive of the circulation 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 10, and the seed is transferred to the next cooling bucket 8. 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 8 by sequentially rotating and reversing from the cooling bucket 8 on the cooling end side, and the seed bag P from the hot water disinfection tank 1 is transferred to the cooling bucket 8 on the cooling start end side. I accept it.

And the seed bag P which passed the several cooling bucket 8 sequentially is discharged | emitted from the discharge chute 17, and is dried with the drying apparatus C of the next process.
According to this seed disinfection device, it is possible to efficiently disinfect hot water continuously while transferring a plurality of seed buckets 2 through a hot water disinfection tank 1 which is long before and after, and seeds are transferred from the hot water disinfection device A to the seed cooling device B. The bag P can be easily supplied.

  In addition, since the circulating transfer device 3 is intermittently driven every set time, the time for one seed bucket 2 to be immersed in hot water can be made constant, and since it is exposed to hot water at every stop, a large number of seed bags P And uniform disinfection can be performed efficiently. Since the cooling bucket 8 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 made constant, and a large number of seed bags P can be uniformly cooled. .

  In addition, by arranging the hot water spout 13 at every set interval over the entire 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. It can equalize and enhance the hot water sterilization effect. In addition, by intermittently transferring the seed bucket 2 in the hot water disinfection tank 1, seed immersion and water separation are quickened, the immersion sterilization time becomes accurate, and the sterilization effect can be enhanced. In other words, in the present embodiment, one seed bucket 2 is stopped and immersed above every 10 hot water jets 13.

Moreover, by jetting air into the cooling tank 10, the temperature rise of the cooling water in the cooling tank 10 can be prevented from being reduced, and the cooling effect can be increased.
Further, since the cooling bucket 8 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, the hot water and cooling water supply paths used for the hot water disinfection tank 1 and the cooling tank 10 will be described with reference to FIG.
A hot water overflow tub 24 is provided in the hot water sterilization tank 1, and the hot water overflowed to the hot water overflow tub 24 is discharged to the outside. Further, a hot water discharge port 25 different from the hot water overflow basket 24 is provided in the hot water disinfection tank 1, and supplied from the hot water discharge port 25 to the switching valve 27 through a hot water return path 26 serving as a return path. Accordingly, the hot water discharge port 25 is switched to a state in which hot water is discharged by switching the switching valve 27.

  Then, hot water from the hot water return path 26 is supplied to a hot water supply path 28 serving as a hot water supply path via a switching valve 27. The hot water supply passage 28 is provided with a pump 29 and an in-line heater 30 serving as a heater. The in-line heater 30 has a configuration in which steam is supplied from a boiler 31 through a steam supply path 32 having various valves to obtain heat. Hot water is supplied from the hot water outlet 13 to the hot water disinfection tank 1 through the hot water supply passage 28. The temperature of the hot water in the hot water disinfection tank 1 is controlled by the hot water temperature sensor 33 to be about 60 ° C.

  Further, the cooling water overflowed from the cooling tank 10 is returned to the recovery tank 36 via a cooling water overflow rod 34 and a reflux path 35 serving as a cooling water overflow path. The cooling water in the collection tank 36 is supplied to a water supply path 37 that serves as a water supply path. The water supply path 37 includes an on-off valve 38 and supplies water to the switching valve 27. And it is the structure which supplies the water of the water supply path 37 to the hot water supply path 28 by switching of the switching valve 27.

  Therefore, the switching valve 27 is configured to switch between a water supply state in which water from the water supply passage 37 is supplied to the hot water supply passage 28 and a hot water circulation state in which hot water from the hot water return passage 26 is supplied to the hot water supply passage 28. . Further, the hot water disinfection tank 1 is provided with a water level meter 39 and the hot water temperature sensor 33 described above. Therefore, when it is input to the control unit 40 that the water level in the hot water disinfection tank 1 is lower than the set value by the detection of the water level gauge 39, the on-off valve 38 is opened by the output from the control unit 40, and the water replenishment state is established. The switching valve 27 is switched, the pump 29 is operated, the boiler 31 is operated, the in-line heater 30 is operated, and the hot water disinfection tank 1 is controlled to be replenished while heating the water in the collection tank 36. At this time, when the temperature of the hot water in the hot water disinfection tank 1 reaches a desired temperature as detected by the hot water temperature sensor 33, the boiler 29 and the in-line heater 30 are stopped and water in the recovery tank 36 is added. The hot water disinfection tank 1 is supplied without heating. When it is input to the control unit 40 that the water level in the hot water disinfection tank 1 has reached the set value by the detection of the water level meter 39, the on-off valve 38 is closed by the output from the control unit 40, and the boiler 29 and the in-line heater 30 To stop water supply. When the water level in the hot water disinfection tank 1 has reached the set value, if the control unit 40 inputs that the temperature of the hot water in the hot water disinfection tank 1 is lower than desired by the detection of the hot water temperature sensor 33, control is performed. The switching valve 27 is switched to the hot water circulation state by the output from the unit 40, the pump 29 is activated, the boiler 31 is activated, the in-line heater 30 is activated, and the hot water in the hot water disinfection tank 1 is being circulated. Heating and hot water are controlled to a desired temperature (about 60 ° C.).

  In addition, the switching valve 27 is configured to be able to switch to a mixed state in which water from the water supply passage 37 and hot water from the hot water return passage 26 are mixed and supplied to the hot water supply passage 28. Further, in the mixed state, the mixing ratio of the water from the water supply path 37 and the hot water from the hot water return path 26 can be changed and adjusted. Thereby, according to the water level and water temperature in the warm water disinfection tank 1, it can control to a desired water level and water temperature accurately. Further, even when the water level in the hot water disinfection tank 1 reaches the set value, when the hot water in the hot water disinfection tank 1 is contaminated with seeds, water from the water supply channel 37 is supplied into the hot water disinfection tank 1. The dirty hot water can be overflowed from the hot water overflow tub 24 and discharged to the outside.

  Therefore, when the hot water in the hot water disinfection tank 1 is dirty, the hot water in the hot water disinfection tank 1 is replaced while performing the seed disinfection operation without interrupting the seed disinfection operation and replacing the hot water. The seeds can be continuously disinfected and the work efficiency can be improved.

  According to this configuration, the heat efficiency can be improved and the amount of water used can be reduced. In particular, the water stored in the recovery tank 36 can be used to fill the hot water disinfection tank 1 at the start of the next seed disinfection operation, or can be applied to the hot water disinfection tank 1 as cleaning water when not working. it can.

  In addition to the above, a disinfecting water supply port 41 serving as a water supplying means for supplying new water to the hot water disinfection tank 1 is provided. As described above, the cooling water supply port 18 serving as a water supply means for supplying new water to the cooling tank 10 is provided. The cooling water supply port 18 is automatically opened by a signal from the cooling control unit 43 when the water temperature is higher than a predetermined temperature based on the detection of the cooling water temperature sensor 42 that detects the water temperature in the cooling tank 10. Water supply. Thereby, the water temperature in the cooling tank 10 can be maintained at a desired temperature, and the cooling effect can be enhanced. Since the cooling water supply port 18 is configured to supply water at the end of the seed discharge side (discharge chute 17 side) in the cooling tank 10, the cooling water from the cooling water supply port 18 is supplied to the cooling tank. 10 is sequentially supplied from the discharge-side compartment partitioned by the partition wall 16 in the inside, and the temperature of the discharge-side compartment is lowered so that the seeds are sequentially conveyed to the compartment having a lower water temperature, thereby enhancing the cooling effect. be able to.

  Next, a drying and storage process is demonstrated based on FIG. The seed bag P taken out from the discharge chute 17 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 in 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 this configuration, it is possible to continuously dry, cool and store the seed bags P in the net container 46 while stacking them, thereby shortening the work time and increasing the work efficiency.

Next, the drying apparatus C will be described with reference to FIG.
A drying tray 56 is provided on one side of the drying chamber 55, and a blower fan 57 and a budding heater 58 are provided on the other side. A warm air passage 44 is provided at the bottom of the drying chamber 55, and the air heated by the heater 58 is sent via the hot air passage 44 by the blower fan 57 and sent to the drying tray 56.

  In addition, a container sheet 48 is laid on the net container 46 and a large number of seed bags P are stacked, and the net container 46 is placed on the drying tray 56. 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 57 are connected by a circulation passage 45 so that the drying air is circulated.

  Further, the drying cradle 56 is configured such that a drying air passage 56 a that is narrow on the lower side and gradually expands toward the entire lower surface of the upper net container 46 is partitioned by a partition plate 56 b so that the drying air flows from the hot air passage 44 toward the net container 46. Are uniformly fed and the stacked seed bags P are uniformly 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.

  The cooling water overflow rod 34, that is, the cooling water overflow port, may be provided in the cooling tank 10 at the position of the end of the seed input side (hot water disinfection device A side). Thereby, in the cooling tank 10, the cooling water supply port 18 and the overflow port are arranged at the end portions facing each other, and cooling is performed while efficiently discharging the water whose temperature has been increased by cooling the seeds from the overflow port. Since the water from the water supply port 18 can be efficiently supplied into the cooling tank 10 without overflowing, the seed cooling effect can be enhanced. Further, since the water whose temperature has risen can be efficiently recovered from the overflow port into the recovery tank 36, the temperature of the water supplied from the recovery tank 36 to the hot water supply path 28 via the water supply path 37 is increased, and heating by the heater 30 is performed. The amount can be reduced, the fuel consumption of the boiler 31 can be reduced, and the running cost can be reduced. Moreover, since the partition wall 16 is configured such that the water temperature becomes higher in the section on the seed input side of the cooling tank 10, the water whose temperature has been increased can be efficiently discharged from the overflow port. Furthermore, since the supernatant water that has passed through each section can be recovered from the overflow port, clean water can be reused for hot water.

  FIG. 13 shows different hot water and cooling water supply paths. As described above, the hot water return path 26 and the switching valve 27 are not provided, and water from the recovery tank 36 is supplied via the water supply path 37 and the hot water supply path 28. It is supplied directly to the hot water disinfection tank 1. Also in this configuration, when the hot water in the hot water disinfection tank 1 is dirty, the seed disinfection operation is not interrupted and the hot water is not replaced. Can be replaced, the seed disinfection can be performed continuously, the work efficiency can be improved, and the temperature of the water supplied from the collection tank 36 to the hot water supply path 28 via the water supply path 37 is increased, and the heater 30 Therefore, the fuel consumption of the boiler 31 can be reduced and the running cost can be reduced.

  Further, as shown in FIG. 14, a recovery path 59 for recovering the hot water from the hot water disinfection tank 1 overflowed to the hot water overflow basket 24 to the recovery tank 36 is provided, and the cooling water overflow basket 34 is connected to the seed input side portion ( The hot water disinfection device A side part) 34a and the seed discharge side part (discharge chute 14 side part) 34b are distinguished, and the cooling water overflowed in the input side part 34a is recovered in the recovery tank 36, and the discharge side part 34b The cooling water that has overflowed can be discharged outside. In addition, the discharge valve 60 which discharges the hot water in the hot water disinfection tank 1 outside at the time of washing | cleaning etc. is provided. As a result, water having a relatively high temperature that overflows at the charging side portion 34a can be recovered in the recovery tank 36, so that the temperature of water supplied from the recovery tank 36 to the hot water supply path 28 via the water supply path 37 is increased. Thus, the heating amount by the heater 30 can be suppressed, the fuel consumption of the boiler 31 can be reduced, and the running cost can be reduced.

  Moreover, it is good also as a structure which can change the inversion direction of the cooling bucket 8 on the seed discharge side of the cooling tank 10 not only to the rear but also to the left and right as described above. Specifically, the configuration may be such that the cooling bucket 8 and the motor 61 that inverts the cooling bucket 8 can be installed in different directions with respect to the cooling bath 10. Thus, seeds can be discharged in a direction that is reasonably easy to work even if there is a restriction on the space in the facility. In other words, it can be adapted to various facilities. Moreover, the arrangement | sequence of the some cooling bucket 8 can also take various arrangements rather than on a straight line. In addition, what is necessary is just to also change the attachment position of the discharge chute 17 with the change of the seed discharge direction by the change of the direction of the cooling bucket 8.

  Further, when the seed (seed bag P) is supplied to the seed bucket 2, an automatic supply device 62 as shown in FIG. 15 may be used. The automatic supply device 62 includes a belt-type supply conveyor 63 having a lug 63a that divides a placement portion on which the seed bag P is placed, and a drive motor 65 that drives the supply conveyor 63 via a drive chain 64. And the supply conveyor 63 is operated by the pitch of the lugs 63a to supply the seed bucket 2 with two seed bags P on the left and right sides. A shooter 66 for guiding the seed bag P to the seed bucket 2 is provided between the supply conveyor 63 and the seed bucket 2 at the seed bag supply position r. And based on the detection of the bucket position sensor 67 which detects that the seed bucket 2 reached | attained the seed bag supply position r, it has the structure which the drive motor 65 act | operates and supplies the seed bag P to the seed bucket 2. . The seed bag P can be filled with seeds 68 by using a measuring device 68 that automatically stops the feeding when the seed is fed and its weight reaches a predetermined amount. The operator supplies the seed bag P filled with the measuring device 68 to the supply conveyor 63. As a result, when the seed bucket 2 is stopped at the seed bag supply position r, the seed bag P can be reliably supplied to the seed bucket 2, and the supply operation of the seed bag P is facilitated.

  In addition, as shown in FIG. 16, when the blower 21 is separately provided for the cooling bath 10 and the hot water disinfection bath 1, the blower 21 for the hot water disinfection bath 1 is configured to suck the exhaust of the boiler 31. For example, the temperature of the air supplied to the hot water disinfection tank 1 can be increased by the exhaust heat of the boiler 31, and the temperature drop in the hot water disinfection tank 1 can be prevented.

  In addition, as shown in FIG. 17, if the air supply pipe 22 of the hot water disinfection tank 1 is configured to eject air from the three sides of the lower side of the seed bucket 2 and the left and right sides to the seed bucket 2, further seeds The stirring effect can be obtained.

Plan view showing a part of hot water disinfection equipment Side view showing part of hot water disinfection equipment Side view showing part of transfer device and lowering device Side view showing part of the lifting device Side view showing part of the lifting device and part of the return device Side view showing seed bag supply position Side view showing reversing cam and guide plate Cross-sectional side view showing cooling tank Plan view showing cooling tank Diagram showing hot water and cooling water supply path Process diagram of drying and shipping process Side view explaining the inside of the drying device Diagram showing different hot and cooling water supply paths Diagram showing different hot and cooling water supply paths Diagram showing automatic feeder Side view showing part of different hot water disinfection equipment Cross-sectional plan view of a hot water disinfection tank showing different air supply pipes

  1: hot water disinfection tank, 10: cooling tank, 18: cooling water supply port, 26: hot water return path, 27: switching valve, 28: hot water supply path, 30: in-line heater, 35: reflux path, 36: recovery tank, 37 : Water supply channel, 42: Water temperature sensor for cooling, 43: Control unit for cooling

Claims (7)

A hot water disinfection tank (1) for storing hot water, a cooling tank (10) for storing cooling water, a large number of seed buckets (2) for storing seeds, and the seed bucket (2) in a hot water disinfection tank (1) A circulating transfer device (3) for circulating transfer to immerse in the hot water is provided. The circulating transfer device (3) lowers the seed bucket 2 and immerses it in the hot water in the hot water disinfection tank (1), 1) Seed bucket (2) immersed in the hot water disinfection tank (1) is intermittently transferred so that the transfer stop time is longer than the time during transfer while the inside is immersed. Seed disinfection equipment configured to return the raised seed bucket (2) to the conveyance start end side . The seed disinfection equipment according to claim 1, wherein the circulation transfer device (3) is configured to continuously transfer and return the raised seed bucket (2) to the conveyance start end side . The seed disinfection facility according to claim 1 or 2, wherein the transfer stop time can be changed. The warm water sterilization tank (1) according to any one of claims 1 to 3, wherein a hot water spout (13) is provided below the stop position of the seed bucket (2) stopped by intermittent transfer at the bottom of the hot water disinfection tank (1). Seed disinfection equipment. A hot water pipe (22) extending in the longitudinal direction of the hot water disinfection tank (1) is provided, a hot water spout (13) is provided in the hot water pipe (22), and the hot water disinfection tank (1) has a seed bucket (2 The seed disinfection equipment according to claim 4, wherein an air jet pipe (19) is arranged below the hot water pipe (22) in a plan view. Water supply means (18) for supplying cooling water to the cooling tank (10), and cooling water that overflows when the cooling water in the cooling tank (10) exceeds a predetermined amount passes through the cooling water overflow path (35). The recovery tank (36) to be recovered, the switching valve (27) to which water from the recovery tank (36) is supplied via the water supply path (37), and the water from the switching valve (27). The hot water supply path (28) for supplying the water to the hot water disinfection tank (1), the heater (30) for heating the water flowing through the hot water supply path (28), and the hot water from the hot water disinfection tank (1) are switched as described above. A return path (26) for supplying the valve (27) is provided, and the switching valve (27) supplies water from the water supply path (37) to the hot water supply path (28) and from the return path (26). It is configured to switch to a state in which hot water is supplied to the hot water supply path (28). Seed disinfection equipment according to any one of claims 5 to. A water temperature sensor (42) for detecting the temperature of the cooling water in the cooling tank (10) is provided, and when the temperature of the cooling water detected by the water temperature sensor (42) exceeds a set temperature, a water supply means ( The seed disinfection equipment according to claim 6, wherein a control unit (43) for controlling 18) is provided, and the supply position of the water supply means (18) and the overflow port are arranged at opposite ends in the cooling tank (10).