JPH0621348Y2 - Container fumigation equipment - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a container fumigation apparatus, and more particularly to an improvement of a container fumigation apparatus for easily and uniformly supplying fumigant gas into a carry-in container.

[Prior Art] Conventionally, imported vegetables and fruits packed in containers are fumigated to exterminate harmful insects attached to the fruits and vegetables. As a conventional fumigation method, fruits and vegetables are transferred from a container to a fumigation warehouse and fumigated, or the container body is placed in a fumigation warehouse and fumigated. Further, in some cases, the fumigation work on the grains stacked in bulk in the container is performed by a method of using a container having a structure in which fumigant gas pipes are arranged inside.

[Problems to be solved by the device]

However, in the above-mentioned conventional fumigation method, first, in the case of the transfer fumigation, there is a problem that the cargo handling work for transferring the fruits and vegetables is necessary. In addition, in the case of the method of putting the container body into the fumigation warehouse, there is a problem that a portable gas circulation device is required for equalizing the concentration of fumigation gas supplied into the container, and that the storage efficiency is very poor. There was also.
Furthermore, in the case of a container with fumigation gas piping,
Since the container itself is not sufficiently airtight, fumigant gas leaks to the outside and poses a danger.

The present invention focuses on the above-mentioned conventional points, does not require special cargo handling work for fumigation work, can quickly and uniformly disperse the fumigant in the container, and reliably prevent fumigation gas leakage. It is an object of the present invention to provide a container fumigation device having a structure capable of performing.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the container fumigation apparatus according to the present invention has a front chamber, a fumigation chamber and a insect chamber which are partitioned by a partition wall, and the containers carried into the front chamber are conveyed in the order of the fumigation chamber and the insect chamber. In order to do so, each partition is equipped with a carry-in port or carry-out port, and the fumigation chamber is equipped with a circulation ventilation means that forms a fumigant gas blowout port facing a part of the opening of the container that has been carried in. Is a structure provided with negative pressure ventilation means.

[Action]

According to the above configuration, the container carried into the fumigation chamber is circulated while the fumigation gas is forcibly supplied from a part of its opening. During the fumigation, the room pressure in the antechamber and the insect chamber is kept negative. Therefore, even if the fumigant leaks to a place other than the fumigation chamber, the fumigant is exhausted to the outside through the negative pressure ventilation means, and the damage can be minimized. In the fumigation chamber, the fumigation gas is directly introduced into the container, and the fumigant gas is circulated in the container and then exhausted and circulated to the outside of the container to perform a high fumigation action.

〔Example〕

Hereinafter, a specific embodiment of the container fumigation apparatus according to the present invention will be described in detail with reference to the drawings.

1 and 2 are configuration diagrams of a container fumigation apparatus according to an embodiment. This container fumigation apparatus has a warehouse 12 into which the container 10 is loaded, and a partition wall 14 partitions the warehouse 12 to form a front chamber 16, a fumigation chamber 18, and an insect chamber 20. In this case, the antechamber 16 and the worm chamber 20 are arranged in parallel at the front of the warehouse 12,
The container 10 can be directly moved in and out through the doorways 22 and 24. Further, a fumigation chamber 18 is arranged at the back of the warehouse 12, and a partition wall 14 of the fumigation chamber 18 and the front chamber 16 has a carrying-in port 2 for the container 10.
6 is formed, and an outlet 28 is formed in the partition wall 14 between the fumigation chamber 18 and the insect inspection chamber 20. Therefore, the container 10 is first put in the front chamber 16 from the doorway 22, reaches the fumigation chamber 18 from the front chamber 16, moves from the fumigation chamber 18 to the insect inspection room 20, and moves from the insect inspection chamber 20 to the outside of the warehouse 12 It is supposed to be carried out via. In order to facilitate the movement of containers between these rooms, the warehouse 12
A roller conveyor 30 is arranged on the floor of the. Further, in this embodiment, one container is provided in each of the antechamber 16 and the insect chamber 20, and two containers 10 are arranged in a parallel manner in the fumigation chamber 18. In the fumigation chamber 18, two containers 10 are arranged in parallel. Simultaneous fumigation is performed in parallel with each other, so that the container 10 follows the U-shaped movement path and the front chamber 1
6, the fumigation room 18 and the insect inspection room 20 are moved. The fumigation chamber may have a container storage capacity of two or more.

In the container fumigation apparatus having such a configuration, the fumigation chamber 18 and the other front chambers 16 and the insect inspection chamber 20 are provided with independent ventilation means. That is, the fumigation chamber 18
The fumigation gas ventilation means in the above is a gas circulation that connects a suction port 32 opened in the ceiling part near the carry-in port 26 from the antechamber 16 and a ceiling outlet 34 opened in the rear ceiling of the fumigation chamber 18. A pipe 36 is formed, and a blower 38 is interposed in the gas circulation pipe 36. A medication machine 40 is connected midway from the suction port 32 to the blower 38 so that the fumigant is injected into the suction air. An exhaust pipe 42 is connected to the discharge side of the blower 38, and an exhaust damper 44 is interposed therebetween.
Further, a discharge side damper 46 for adjusting the amount of blowout is provided on the side of the ceiling outlet 34, and a fresh air intake damper 48 is branched and connected to the downstream side of the discharge side damper 46. Therefore, the operation of the blower 38 causes the fumigation chamber 18
The air inside is circulated and ventilated while the fumigant is supplied from the medication machine 40, and the air in the fumigation chamber 18 can be replaced by the action of the damper.

By the way, the ceiling blow-out port 34 in the fumigation chamber 18 is opened to a blow-out duct 50 formed in the upper rear part of the fumigation chamber 18, and blows out into the blow-out duct 50 temporarily. The blowing duct 50 faces the upper part of the opening surface of the container 10 arranged in the fumigation chamber 18, and the discharge port 52 is formed in this facing portion so that the circulating fumigant gas can be blown directly into the container 10. .
The discharge port 52 corresponds to each opening surface of the two containers 10 placed in the fumigation chamber 18, and the discharge port 52 is provided with a rubber packing so that a part of the opening of the container 10 can be brought into close contact. Has been. Because of this, the discharge port 5
The fumigation gas supplied from 2 to the container 10 is the container 1
0 through the upper layer side to reach the inner part of the container 10, reverse and flow through the lower layer side to reach the opening of the container 10, fill the fumigation chamber 18, and fill the inside of the fumigation chamber 18 with the suction port 3 on the ceiling side of the carry-in port 26 side.
It will flow so that it may be inhaled from 2 by the blower 38.

On the other hand, the ventilation means of the front chamber 16 connects the suction port 54 provided in the ceiling portion near the carry-in port 26 and the discharge port 56 provided in the ceiling portion near the entrance port 22 by the pipe 60 with the blower 58 interposed. is doing. In addition, a suction damper 62 and a fresh air intake damper 64 are provided in the pipe 60 on the suction port 54 side, an exhaust pipe 68 having an exhaust damper 66 is connected to the discharge side pipe 60 of the blower 58, and the downstream side thereof is connected. The exhaust pipe 68 is provided with a discharge side damper 70 so as to have a piping configuration. This kind of configuration
The same applies to 0. And with this ventilation means,
The suction amount is increased so that the internal pressures of the antechamber 16 and the insect chamber 20 become negative.

The operation of the container fumigation apparatus having such a configuration is as follows. First, in the antechamber 16 and the insect inspection room 20, during the fumigation in the fumigation room 18, the blower 58 is operated to adjust the suction damper 62, the fresh air intake damper 64, the discharge side damper 70, and the exhaust damper 66. The indoor pressure is always kept negative. Therefore, even if the fumigant leaks from the fumigation chamber 18 side, the fumigant is immediately sucked from the suction ports 54 of the antechamber 16 and the insect chamber 20 and does not fill those chambers. Can also minimize the damage.

On the other hand, in the fumigation chamber 18, when operating the blower 38, the exhaust damper 44 and the fresh air intake damper 4 are used.
8 is closed, the discharge side damper 46 is opened, and the fumigant gas is forcibly supplied into the container 10. The supplied fumigant gas circulates inside the container 10, and also circulates inside the fumigation chamber 18 to be sucked through the suction port 32 and recirculated. After the fumigation is completed, the exhaust damper 44 and the fresh air intake damper 48 are opened, and the discharge side damper 46 is closed to exhaust the gas in the fumigation chamber 18 and replace it with fresh air.

According to such an embodiment, during the fumigation work in the fumigation chamber 18, the antechamber 16 and the insect inspection chamber 20 are always kept at a negative pressure, and damage should be minimized even if the fumigation gas leaks. You can Further, since the discharge port 52 is in close contact with part of the opening of the container 10 in the fumigation chamber 18, the fumigant can be forcedly circulated in the container 10, and the inside of the container 10 can be uniformly concentrated in a short time. Can be Also,
Partition wall 14 for front chamber 16, insect chamber 20 and fumigation chamber 18
The fumigation work can be continuously performed because of the separated structure.

[Effect of device]

As described above, according to the container fumigation apparatus according to the present invention, the fumigant gas concentration in the fumigation chamber can be made uniform in a short time, and the fumigant leaks to the antechamber and the antechamber that are connected to the fumigant chamber. Even if there is, there is an effect that the damage can be minimized because it can be immediately sucked and exhausted.

[Brief description of drawings]

FIG. 1 is a sectional view of a container fumigation apparatus according to an embodiment, FIG.
The figure is a plan view of the same. 10 ... Container, 14 ... Partition wall, 16 ... Front room, 18 ... Fumigation room, 20 ... Insect room, 32, 54 ...
Suction port, 34 ... Ceiling outlet, 38, 58 ...
Blower, 50 ... Blowout duct, 40 ... Medication machine, 5
2, 56 ... Discharge port.

Claims (1)

[Scope of utility model registration request] 1. An antechamber, a fumigation room, and an insect chamber are partitioned by a partition wall, and a container which is carried into the antechamber is conveyed in order to the fumigation chamber and the insect chamber. In the container fumigation device provided, the fumigation chamber is provided with a circulation ventilating means having a fumigation gas outlet facing a part of the opening of the container carried in, and a negative pressure ventilating means is provided in the antechamber and the antechamber. A container fumigation device characterized by being provided.