JP2006273412A - Container for transportation - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently remove gas containing odor element or the like accumulated inside a container for transportation, and to maintain the excellent ambient environment without diffusing the odor element outside. <P>SOLUTION: A forcible exhausting device 5 is equipped with an air intake pipe 6 having an air intake port in an accumulation part of gas containing odor elements or the like generated inside a container body 1a, an exhausting pipe 9 to exhaust the gas sucked from the air intake pipe 6 outside a container 1 via an exhaust port, an adsorption device 7, and a ventilation fan 8. The ventilation fan 8 is driven by a battery 11. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a transport container that transports waste generated in a city or a company to a remote location, and more particularly to a transport container that is suitable for transport of waste that emits odorous components and harmful components.

  Wastes generated in cities and companies are often transported and processed at remote disposal facilities for reasons such as shortage of nearby disposal sites and collection destinations. For this transportation, transportation containers that can be loaded on railway freight cars, freight cars, ships and the like have been proposed and actually used (see, for example, Patent Documents 1 and 2). Such a transport container employs a structure that can be loaded on both a rail freight car and a freight car, and is configured so that a dumping operation can be performed on the freight car. In addition, a structure capable of transporting various wastes is employed. For example, a structure employing a water-tight packing structure is known in order to transport waste having a lot of moisture.

  Many wastes emit gas containing odorous components and harmful components. Examples include methyl mercaptan, methyl sulfide, trimethylamine, methane, isovaleric acid, volatile organic compounds (VOC), ammonia, hydrogen sulfide, hydrogen, and the like. For this reason, a sealing structure for sealing the waste is adopted in the shipping container. However, a gap may occur in the sealed structure of the container canopy due to vibration during transportation, etc., and gas containing odor components may leak from the gap and diffuse outside the container. If such odorous components are discharged, for example, when a railway freight car is stopped, the environment near the stop position (station, freight terminal, yard, etc.) is deteriorated. For this reason, consideration is required to avoid such a situation. Moreover, even if the sealed state is maintained, the discharge of such odorous components and the like at a waste loading operation at the treatment plant will worsen the work environment of the treatment plant. The shipping containers described in Patent Documents 1 and 2 do not correspond to the treatment of such odor components.

  As a transport container for processing odor components and the like, for example, a transport container as shown in Patent Document 3 has been proposed. This transport container is provided with a lead-out pipe that leads the gas inside the container to the outside, and an adsorption cylinder that adsorbs the gas passing through the lead-out pipe to the adsorbent and removes odor components and the like. According to this transport container, odor components and the like are discharged to the outside through the outlet tube, and the adsorption action is performed by the adsorption cylinder.

However, in the configuration of Patent Document 3, the amount of gas discharged to the outside of the container is not sufficient due to the high gas passage resistance of the adsorption cylinder. Therefore, in a state where gas has accumulated inside the container and the pressure inside the container has increased, a gap is created in the sealed structure of the container due to vibration during transportation, etc., and gas containing odorous components leaks from the gap, causing a large amount of gas outside the container. It is thought that the situation where gas diffuses may still occur. In addition, it is considered that a situation in which odor components and the like are discharged at a stretch in the loading and unloading work at the treatment plant may occur.
JP 2000-355393 A JP 2000-142879 A JP 2002-254094 A (paragraphs [0009] to [0016])

  The present invention has been made in view of these problems, and efficiently removes gas containing odor components and the like accumulated in the container, and also improves the surrounding environment without diffusing odor components and the like outside. An object of the present invention is to provide a shipping container that can be kept at a high level.

  In order to achieve the above object, a transport container according to an aspect of the present invention includes a container main body configured to be able to load a load therein, and a gas retention point generated from the load inside the container main body. An intake pipe having an intake port; a discharge pipe for discharging the gas sucked from the intake pipe to the outside of the container through the discharge port; and disposed between the intake pipe and the discharge pipe inside the container body. An exhaust fan that causes the gas to flow from the intake port toward the exhaust port, an adsorption device that is disposed inside the container body and adsorbs the sucked gas, and is disposed inside the container body. And a power source for driving the exhaust fan.

  According to the present invention, it is possible to forcibly exhaust to the outside by an exhaust fan while adsorbing the gas accumulated in the container, and it is possible to improve the working environment of the treatment plant at the time of waste loading and unloading work. In a state where gas has accumulated inside the container and the pressure inside the container has risen, a large amount of gas accumulated due to sudden circumstances such as vibration is exhausted to the outside, and the surrounding environment such as stations and cargo terminals is deteriorated. Can be prevented. In addition, since the exhaust fan, the adsorption device, and the power source are disposed inside the container main body, gas can be discharged regardless of the transportation means. For this reason, the modal shift which switches the trunk road transportation by a truck to transportation combining a truck, a ship, a railroad, etc. can be promoted.

  Next, embodiments of the present invention will be described in detail with reference to the drawings.

  As shown in FIG. 1, the transport container 1 according to the present embodiment is configured to be able to be loaded on a transport means 2 such as a freight car. The inside of the container main body 1a of the transport container 1 is divided by a wall surface 3, and waste W (for example, sewage sludge, construction generated soil, RDF, RPF, etc.) to be transported is loaded on one side (loading room R1). On the other side (device chamber R2), a forced exhaust device 5 for taking in the gas generated from the waste and forcibly discharging it to the outside is mounted. As shown in the front view of FIG. 2, the forced exhaust device 5 includes an intake pipe 6, an adsorption device 7, an exhaust fan 8, and an exhaust pipe 9. The exhaust fan 8 is driven by being supplied via a control circuit 12 with DC power supplied from a battery 11 disposed on the side of the forced exhaust device 7. The control circuit 12 performs various controls for the operation of the exhaust fan 8, such as converting the DC power supplied from the battery 11 into the rated voltage of the motor of the exhaust fan 8.

  The intake pipe 6 is formed so as to penetrate the wall surface 3, and the suction port is present on the load chamber R 1 side where the waste W is loaded, and the discharge port is present on the device chamber R 2 side. It is connected to the. The suction port is formed above the upper surface 16 of the waste W. In addition, for example, an umbrella-shaped cover 6a is provided at the tip of the suction port so that the waste W itself, the cleaning liquid used for cleaning the load chamber R1, and the like do not reach the adsorption device 7 and the exhaust fan 8. preferable. Moreover, it is also possible to prevent the cleaning liquid and waste from reaching the adsorption device 7 and the like by making the suction port have an inverted U-shaped structure.

  The adsorption device 7 includes, for example, a container in which air holes are formed in the vertical direction, and the air holes are filled with an adsorbent 7a such as activated carbon or zeolite. This container can be configured as an attachment that can be attached to / detached from the main body of the suction device 7 with a single touch. When the gas containing the odor component passes through the adsorbent 7a, the odor component or the like is adsorbed on the adsorbent 7a. The shape of the adsorbent 7a is not particularly limited, but it is preferable to use a hollow body shape as shown in FIG. 3 so as to reduce the pressure loss. As an example, in the case of a hollow body shape having an outer diameter of φ15 mm and an inner diameter of φ9 mm, the pressure loss can be reduced to about 1/10 compared to a solid body having the same size. As a preferred example, a gate valve can be provided between the intake pipe 6 and the adsorption device 7. In this case, it is possible to prevent the gas accumulated in the adsorption device 7 during the replacement operation of the adsorbent 7a from leaking to the outside.

  The exhaust fan 8 is provided, for example, in the lower part of the adsorption device 7 and is supplied with power from the battery 11 via the control circuit 12 to rotate the fan. As the fan rotates, the inside of the adsorption device 7 is made negative with respect to the load chamber R1, thereby introducing the gas in the load chamber R1 into the adsorption device 7 through the intake pipe 6, and further the discharge pipe 9 Can be discharged to the outside. And since this gas is adsorb | sucked by the adsorption | suction apparatus 7 and is discharged | emitted outside the container 1, ambient environment can be kept favorable. Furthermore, since the gas having the odor component etc. emitted from the waste W is discharged while being always adsorbed in this way, the load chamber R1 is not filled with the gas having the odor component or the like. For this reason, it is prevented that the environment such as the disposal site and the stop position is deteriorated due to gas leaking during the disposal of the waste W at the treatment site or during transportation or stopping due to an unexpected situation. The exhaust fan 8 may be disposed between the adsorption device 7 and the exhaust pipe 9 as shown in FIG. 1, but is not limited thereto, and is disposed, for example, between the adsorption device 7 and the intake pipe 6. Alternatively, a form incorporated in the adsorption device 7 may be used. Further, the installation location of the discharge port of the discharge pipe 9 is preferably, for example, the lower part of the container body 1a. However, the exhaust operation is not affected by the wind, and rain or the like does not enter the adsorption device 7. If there is no particular restriction.

  4 and 5 are a top view and a side view for explaining the structure of the shipping container 1, respectively. As shown in the top view of FIG. 4, the transport container 1 has a canopy 13 that opens and closes in a so-called double door on the top surface, and the waste W is put into the container from the input port formed by opening the canopy 13. The inside of the main body 1a, that is, the loading chamber R1 is loaded. Further, as shown in the side view of FIG. 5, the door 15 that is opened and closed when the waste W is discharged is formed behind the transport container 1. The door 15 is configured to open and close by ascending and descending starting from the hinge portion 15a. In particular, when the transport means 2 is capable of dumping, the door 15 is opened by the weight of the slid waste W, and the waste W can be discharged to the outside. The bottom surface of the container 1 is provided with a fixing hole 18 for fitting with a fixing pin 17 provided on the transportation means 2 side, and a fork pocket 19 for inserting a fork of a forklift. . When the fixing pin 17 is fitted into the fixing hole 18, loading / unloading work by a forklift can be facilitated.

  As shown in FIG. 6, a door 21 attached by a fixing means such as a bolt is formed on the wall surface on the front side of the shipping container 1, that is, the wall surface on the apparatus chamber R <b> 2 side. The forced exhaust device 5 exists behind the door 21, and the forced exhaust device 5 can be maintained by removing the door 21. The door 21 has small doors 22 and 23 that can be opened and closed by hinges. The small doors 22 and 23 are formed at positions corresponding to the positions of the control circuit 12 and the battery 11. When the control circuit 12 and the battery 11 are inspected, the small doors 22 and 23 are opened and closed without removing the door 21. do it. In this embodiment, the battery 11 is mounted in the container 1a body as described above, and the exhaust fan 8 is driven by the electric power supplied from the battery 11. For this reason, forced exhaust by the operation of the exhaust fan 8 is possible even when loaded on any means of transportation, including rail transport by a freight car that cannot be powered, ship transport by ferry, and the like. Also, even if the transportation mode changes due to transshipment, such as from a railroad to a truck or from a truck to a ship, the forced exhaust operation can be continued without worrying about the power supply, and a modal shift should be promoted. It is something that can be done.

  Next, an example of the above embodiment will be described in comparison with a comparative example. Here, an example will be described in which about 10 tons of sewage sludge is transported from the generation site to the treatment facility over 4 days using the shipping container of the above embodiment.

  In the shipping container of the above embodiment, the gas containing the odor component generated from the waste in the container body was discharged at 150 liters / minute using the exhaust fan 8 while being adsorbed by the adsorption device 7. As the adsorbent 7a used in the adsorbing device 7, activated carbon having a hollow shape as shown in FIG. 3 is used, and the outer diameter is 15 mm and the inner diameter is 9 mm. The gas passing speed in the vicinity of the activated carbon was set to 1.0 m / s or less, preferably 0.7 m / s. In this case, the concentration of the odor component inside the container was measured using a detector tube. The results are shown in [Table 1]. It was confirmed that the concentration of odorous components such as mercaptan and ammonia in the container was reduced compared to the comparative example without the forced exhaust device 5.

以上、発明の実施の形態を説明したが、本発明はこれに限られるものではなく、発明の趣旨を逸脱しない範囲内において、様々な改変、置換及び組み合わせ等が可能である。例えば、上記の実施の形態では、強制排気装置５が配置される装置室Ｒ２を廃棄物Ｗの排出口である煽戸１５とは反対側に配置したが、これに限らず煽戸１５と同じ側に設けることも可能であり、廃棄物の投入・排出作業に支障がなく、強制排気装置５のメンテナンスが行い易い位置に設置することができる。また、天蓋１３や煽戸１５の開閉方式等も、廃棄物Ｗの種類等に応じて適したものを選択可能である。また、安全性の向上のため、コンテナ内部に温度計、圧力計又は液面計を設置し、コンテナ内部の温度、圧力、液面等を定期的に監視することも可能である。また、自動のガス分析計を設置することも可能である。

The embodiment of the invention has been described above, but the present invention is not limited to this, and various modifications, substitutions, combinations, and the like are possible without departing from the spirit of the invention. For example, in the above-described embodiment, the device room R2 in which the forced exhaust device 5 is disposed is disposed on the side opposite to the door 15 that is the discharge port of the waste W. The forced exhaust device 5 can be installed at a position where the maintenance of the forced exhaust device 5 is easy to perform. In addition, a suitable opening / closing method of the canopy 13 and the sash door 15 can be selected according to the type of the waste W or the like. In order to improve safety, it is also possible to install a thermometer, pressure gauge, or liquid level gauge inside the container and periodically monitor the temperature, pressure, liquid level, etc. inside the container. It is also possible to install an automatic gas analyzer.

The state which loaded the transport container 1 which concerns on embodiment of this invention on transport means, such as a freight car 2, is demonstrated. The structure of the forced exhaust apparatus 5 mounted in the container 1 for transport is demonstrated. An example of the shape of the adsorbent 7a contained in the adsorption device 7 is shown. The top view of the container 1 for transport is shown. A side view (sectional view) of the shipping container 1 is shown. The front view of the container 1 for transport is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Container for transport, 1a ... Container main body, 2 ... Transportation means, 3 ... Wall surface, R1 ... Loading room, W ... Waste, R2 ... Equipment room 5・ ・ ・ Forced exhaust device, 6 ・ ・ ・ Intake pipe, 6a ・ ・ ・ Cover, 7 ・ ・ ・ Adsorption device, 7a ・ ・ ・ Adsorbent, 8… Exhaust fan, 9… Exhaust pipe, 11. ··· Battery 12 ··· Control circuit 13 · · · Canopy · 15 · · · 煽 door · 15a · · · hinge portion 16 · · · top surface of waste W · 17 · · · fixing pin・ ・ Fixing hole, 19 ... Fork pocket, 21 ... Door, 22, 23 ... Small door.

Claims (3)

A container body configured to be able to load a load inside;
An intake pipe having an intake port at a location where gas generated from the load inside the container body,
A discharge pipe for discharging the gas sucked from the intake pipe to the outside of the container through a discharge port;
An exhaust fan disposed inside the container body and disposed between the intake pipe and the exhaust pipe to cause the gas to flow from the intake port toward the exhaust port;
An adsorption device arranged inside the container body for adsorbing the sucked gas;
A transportation container comprising: a power source disposed inside the container main body for driving the exhaust fan.   The shipping container according to claim 1, wherein the power source is a DC power source.   The transport container according to claim 1, wherein the exhaust fan, the adsorption device, and the power source are mounted in a space partitioned by a wall surface from a load chamber for loading the load.

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