JP2016113227A - Adhesion prevention device of continuous unloader - Google Patents

Adhesion prevention device of continuous unloader Download PDF

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JP2016113227A
JP2016113227A JP2014250931A JP2014250931A JP2016113227A JP 2016113227 A JP2016113227 A JP 2016113227A JP 2014250931 A JP2014250931 A JP 2014250931A JP 2014250931 A JP2014250931 A JP 2014250931A JP 2016113227 A JP2016113227 A JP 2016113227A
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bucket
continuous unloader
cargo
load
elevator casing
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JP6348410B2 (en
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宏明 田畑
Hiroaki Tabata
宏明 田畑
田中　良典
Yoshinori Tanaka
良典 田中
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IHI Transport Machinery Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide an adhesion prevention device of a continuous unloader capable of preventing a cargo from being adhering to a tare part of a bucket even during handling of the cargo and capable of removing the cargo when the cargo is adhered.SOLUTION: In a continuous unloader 10 for landing a cargo in a hold by scraping the cargo by buckets connected in a chain, an adhesion prevention device of the continuous unloader includes a lifting bucket elevator casing 17, where the bucket 21 is lifted, provided with an induction heating coil 40.SELECTED DRAWING: Figure 1

Description

本発明は、船倉内の鉄鉱石や石炭などの荷を荷揚げする連続アンローダに係り、特に連続アンローダのバケットへの荷の付着堆積を防止できる連続アンローダの付着防止装置に関するものである。   The present invention relates to a continuous unloader for unloading loads such as iron ore and coal in a cargo hold, and more particularly to a continuous unloader adhesion preventing apparatus capable of preventing the adhesion and accumulation of loads on a bucket of a continuous unloader.

連続アンローダは、鎖状チェーンに連結されたバケットで荷を掻き上げて荷役を行うが、含水分が多い荷を荷役する場合、バケットの風袋部に荷の付着が発生する。   The continuous unloader picks up a load with a bucket connected to a chain chain and loads the load. However, when a load having a high moisture content is loaded, the load adheres to the tare portion of the bucket.

このように付着が発生すると、その分バケットでの持ち上げ量が減り荷役能力が低下する、或いは、先端部分の重量が増え起伏能力の不足が発生する。   When adhesion occurs in this manner, the lift amount in the bucket is reduced by that amount, and the cargo handling capacity is reduced, or the weight of the tip portion is increased and the undulation capacity is insufficient.

そのため、荷役中もしくは終了後に洗浄ピットでバケットの洗浄を行い、荷の付着を落とす作業を行うようにしている（特許文献１）。   For this reason, the bucket is washed in the washing pit during or after loading, and the work of dropping the load is performed (Patent Document 1).

また、バケット内に付着物を掻き取る鎖を設けたり（特許文献２）、バケット内に付着防止用のライニングを施すようにしている（特許文献３）。   Further, a chain for scraping off the deposits is provided in the bucket (Patent Document 2), or an anti-adhesion lining is applied in the bucket (Patent Document 3).

特開２００２−１５４６３３号公報JP 2002-154633 A 特開２００４−２５６２６１号公報JP 2004-256261 A 特開２００９−１３７６７９号公報JP 2009-137679 A

しかしながら、特許文献１のバケットの洗浄は、実際の荷役時間ではなく、アイドル（非荷役）時間であるため、全体の荷役の効率低下となる。また、バケットの洗浄を荷役終了後に行う場合、荷役能力を低減した状態で作業することになる。   However, since the cleaning of the bucket in Patent Document 1 is not an actual cargo handling time but an idle (non-loading) time, the efficiency of the overall cargo handling is reduced. Further, when the bucket is washed after the end of the handling, the work is performed in a state where the handling ability is reduced.

また、特許文献２では、バケット内に付着物を掻き取る鎖を設けるため、その分の容積で搬送能力が低下する問題があり、また特許文献３では、ライニング材がゴムや樹脂製のため耐久性に問題がある。   Further, in Patent Document 2, since a chain for scraping off deposits is provided in the bucket, there is a problem in that the conveyance capacity is reduced by the volume of that amount, and in Patent Document 3, since the lining material is made of rubber or resin, it is durable. There is a problem with sex.

そこで、本発明の目的は、上記課題を解決し、荷役中でもバケットの風袋部への荷の付着を防止できると共に付着したときには取り除くことが可能な連続アンローダの付着防止装置を提供することにある。   Accordingly, an object of the present invention is to solve the above-described problems and provide a continuous unloader adhesion preventing device that can prevent the load from adhering to the tare portion of the bucket even during cargo handling and that can be removed when it adheres.

上記目的を達成するために本発明は、船倉内の荷をチェーンに連結されたバケットで掻き取って荷揚げする連続アンローダにおいて、バケットが昇降するバケットエレベータケーシングに誘導加熱コイルを設けたことを特徴とする連続アンローダの付着防止装置である。   In order to achieve the above object, the present invention is characterized in that an induction heating coil is provided in a bucket elevator casing in which a bucket moves up and down in a continuous unloader for scraping and unloading cargo in a hold with a bucket connected to a chain. This is an apparatus for preventing adhesion of a continuous unloader.

また、本発明は、船倉内の荷をチェーンに連結されたバケットで掻き取って荷揚げする連続アンローダにおいて、バケットが昇降するバケットエレベータケーシング内にマイクロ波を発振する発振器を設けたことを特徴とする連続アンローダの付着防止装置である。   The present invention is also directed to a continuous unloader for scraping and unloading cargo in a hold with a bucket connected to a chain, and an oscillator that oscillates microwaves is provided in a bucket elevator casing in which the bucket moves up and down. This is an apparatus for preventing adhesion of a continuous unloader.

本発明は、高周波加熱やマイクロ波加熱により、バケットに付着する荷の水分を乾燥させることで、付着を防止できるという優れた効果を発揮する。   The present invention exhibits an excellent effect of preventing adhesion by drying the moisture of the load adhering to the bucket by high-frequency heating or microwave heating.

本発明の一実施の形態を示す概略図である。It is the schematic which shows one embodiment of this invention. 図１における高周波誘導加熱の作動を説明する図である。It is a figure explaining the action | operation of the high frequency induction heating in FIG. 本発明の他の実施の形態を示す概略図である。It is the schematic which shows other embodiment of this invention. 本発明における連続アンローダを示す図である。It is a figure which shows the continuous unloader in this invention.

以下、本発明の好適な一実施の形態を添付図面に基づいて詳述する。   A preferred embodiment of the present invention will be described below in detail with reference to the accompanying drawings.

先ず、図４により連続アンローダ１０を説明する。   First, the continuous unloader 10 will be described with reference to FIG.

図４に示すように、連続アンローダ１０は、埠頭などの岸壁１１に設けられたレール１２上を走行するポータル部１３と、ポータル部１３に水平旋回自在に設けられた旋回フレーム１４と、旋回フレーム１４の頂部に俯仰自在に設けられたバランシングレバー１５と、バランシングレバー１５にトップフレーム１６を介して旋回自在に設けられ、荷役を行うためのバケットエレベータケーシング１７と、トップフレーム１６と旋回フレーム１４とを連結して、これらとバランシングレバー１５とで平行リンクを構成するブーム１８とを備える。   As shown in FIG. 4, the continuous unloader 10 includes a portal portion 13 that travels on a rail 12 provided on a quay 11 such as a wharf, a swivel frame 14 that is provided on the portal portion 13 so as to be horizontally swivel, and a swivel frame. 14, a balancing lever 15 provided so as to be freely raised and lowered, a bucket elevator casing 17 which is provided on the balancing lever 15 via a top frame 16 so as to be able to turn freely, and performs cargo handling, a top frame 16 and a turning frame 14 And a boom 18 that forms a parallel link with these and the balancing lever 15.

バランシングレバー１５は、旋回フレーム１４の後方へも延出されており、後端には、カウンターウェイト１９が設けられる。バランシングレバー１５と旋回フレーム１４とは俯仰用シリンダ２０で連結されており、俯仰用シリンダ２０を伸縮させることで、バランシングレバー１５及びブーム１８を俯仰させるようになっている。   The balancing lever 15 extends to the rear of the revolving frame 14, and a counterweight 19 is provided at the rear end. The balancing lever 15 and the revolving frame 14 are connected by a lifting / lowering cylinder 20, and the balancing lever 15 and the boom 18 are lifted / lowered by expanding / contracting the lifting / lowering cylinder 20.

バケットエレベータケーシング１７は、多数のバケット２１をチェーン２２（図１、図３）で連結したバケットエレベータ２３のケーシングを兼ねている。このバケットエレベータ２３のチェーン２２は、バケットエレベータケーシング１７内上部に設けられた駆動スプロケット２４と、バケットエレベータケーシング１７の下方に掻取部２５を形成する先端スプロケット２６ａ、後端スプロケット２６ｂとに巻き掛けられている。   The bucket elevator casing 17 also serves as a casing for the bucket elevator 23 in which a large number of buckets 21 are connected by a chain 22 (FIGS. 1 and 3). The chain 22 of the bucket elevator 23 is wound around a drive sprocket 24 provided in the upper part of the bucket elevator casing 17, and a front sprocket 26 a and a rear end sprocket 26 b that form a scraping portion 25 below the bucket elevator casing 17. It has been.

この連続アンローダ１０による荷揚げは、岸壁１１に貨物船などの船体３０が接岸され、その船体３０の船倉３１上のハッチ３２を開け、その船倉３１内にバケットエレベータケーシング１７を投入し、掻取部２５を船倉３１内の所定の位置に移動させると共に荷３３上に位置させ、その状態でバケットエレベータ２３を駆動して荷３３を掻き取る。   In the unloading by the continuous unloader 10, a hull 30 such as a cargo ship is attached to the quay 11, a hatch 32 on the hold 31 of the hull 30 is opened, a bucket elevator casing 17 is inserted into the hold 31, and a scraping unit 25 is moved to a predetermined position in the hold 31 and placed on the load 33. In this state, the bucket elevator 23 is driven to scrape the load 33.

この掻取部２５の各バケット２１で掻き取られた荷３３は、バケットエレベータケーシング１７を通し、ブーム１８内に設けたコンベア（図示せず）から旋回フレーム１４内のシュート（図示せず）を介して、ポータル部１３に設けた移送装置３４から岸壁１１に設けた陸揚げコンベア３５に搬出され、陸揚げコンベア３５から貯蔵設備に搬送されるようになっている。   The load 33 scraped by each bucket 21 of the scraping portion 25 is passed through the bucket elevator casing 17 and a chute (not shown) in the revolving frame 14 is taken from a conveyor (not shown) provided in the boom 18. Then, it is carried out to the landing conveyor 35 provided in the quay 11 from the transfer apparatus 34 provided in the portal part 13, and is conveyed from the landing conveyor 35 to a storage facility.

含水分の多い荷を荷揚げ中には、バケットエレベータケーシング１７を通し、駆動スプロケット２４で反転されてブーム１８内のコンベアに荷３３が投入されても、バケット２１内の風袋部には、荷が付着して残ってしまい、これが順次堆積して風袋部内の容量が減少してしまう。   When unloading a high moisture content load, even if the load 33 is put through the bucket elevator casing 17, reversed by the drive sprocket 24 and loaded onto the conveyor in the boom 18, the load is loaded on the tare portion in the bucket 21. It adheres and remains, and this accumulates sequentially and the capacity | capacitance in a tare part will reduce.

本発明においては、図１、図２に示すように、バケット２１が昇降するバケットエレベータケーシング１７内に誘導加熱コイル４０を設けたものである。   In this invention, as shown in FIG. 1, FIG. 2, the induction heating coil 40 is provided in the bucket elevator casing 17 in which the bucket 21 moves up and down.

この誘導加熱コイル４０は、バケットエレベータケーシング１７内に沿って螺旋状に配置され、そのコイル端にリード線４２を介して高周波電源４１が接続される。高周波電源４１は、ＩＨクッキングヒータなどに用いられる原理と同じであり、高周波電流を誘導加熱コイル４０に流すようになっている。   The induction heating coil 40 is spirally arranged along the bucket elevator casing 17, and a high frequency power supply 41 is connected to the coil end via a lead wire 42. The high frequency power supply 41 is the same as the principle used for an IH cooking heater or the like, and allows a high frequency current to flow through the induction heating coil 40.

誘導加熱コイル４０は、図１、２では、バケットエレベータケーシング１７内に昇降するバケット２１の周囲を囲むように配置しているが、上昇側のバケット２１ｕは荷があり、下降側のバケット２１ｄは、荷を降ろした状態で空であり、その風袋部２１ｔに荷３３ｄが付着しているため、下降側のバケット２１ｄを誘導加熱できるように、下降側のバケットエレベータケーシング１７側の面に平行に誘導加熱コイル４０を平面状に並べて配置するようにするのが好ましい。   In FIG. 1 and FIG. 2, the induction heating coil 40 is arranged so as to surround the periphery of the bucket 21 that moves up and down in the bucket elevator casing 17, but the ascending bucket 21u is loaded, and the descending bucket 21d is Since the load 33d is empty when the load is unloaded, and the load 33d is attached to the tare portion 21t, it is parallel to the lower surface of the bucket elevator casing 17 so that the lower bucket 21d can be induction-heated. The induction heating coils 40 are preferably arranged side by side in a planar shape.

次に、本実施の形態の作用を説明する。   Next, the operation of the present embodiment will be described.

連続アンローダ１０の掻取部２５で荷が掻き取られ、各バケット２１に取り込まれた荷は、バケットエレベータケーシング１７を通して上昇して搬出され、空となったバケット２１が、バケットエレベータケーシング１７を通して降下する。この際、誘導加熱コイル４０には、高周波電流が印加されて磁力線Ｌｍが発生し、その磁力線Ｌｍでバケット２１が誘導加熱されるため、バケット２１の風袋部２１ｔに付着している含水分の多い荷３３ｄが加熱乾燥される。これにより付着した荷３３ｄがバケット２１から剥離して落下するため、その付着が防止されると共にその堆積がなくなる。   The load is scraped off by the scraping portion 25 of the continuous unloader 10, and the load taken into each bucket 21 is lifted and carried out through the bucket elevator casing 17, and the empty bucket 21 descends through the bucket elevator casing 17. To do. At this time, a high frequency current is applied to the induction heating coil 40 to generate a magnetic line Lm, and the bucket 21 is induction-heated by the magnetic line Lm, so that the moisture content attached to the tare portion 21t of the bucket 21 is large. The load 33d is heated and dried. As a result, the attached load 33d is peeled off from the bucket 21 and dropped, so that the adhesion is prevented and the accumulation is eliminated.

図３は、本発明の他の実施の形態を示したものである。   FIG. 3 shows another embodiment of the present invention.

本実施の形態においては、バケットエレベータケーシング１７内、特に、空のバケット２１が降下する側のバケットエレベータケーシング１７にマイクロ波を発振する発振器４５を複数間隔をおいて設けたものである。   In the present embodiment, an oscillator 45 that oscillates microwaves is provided at a plurality of intervals in the bucket elevator casing 17, particularly in the bucket elevator casing 17 on the side where the empty bucket 21 descends.

発振器４５の発信周波数は、電子レンジ等に用いられる発振器と同じ原理のものである。   The oscillation frequency of the oscillator 45 has the same principle as that of an oscillator used in a microwave oven or the like.

この実施の形態においては、図１、図２の実施の形態と違って、バケット２１に付着した荷中の水分を直接加熱するため、効率のよい乾燥が行える。   In this embodiment, unlike the embodiment of FIGS. 1 and 2, the moisture in the load attached to the bucket 21 is directly heated, so that efficient drying can be performed.

発振器４５のマイクロ波は、バケットエレベータケーシング１７の内面やバケット２１の面で反射されるため、バケット２１内により効果的にマイクロ波が入射できるように、発振器４５の導波管４５ｗを、下向きに開口したバケット２１の底面に向けてマイクロ波Ｍを発振できるようにすることで、より確実にバケット２１に付着した荷にマイクロ波を照射できる。   Since the microwave of the oscillator 45 is reflected by the inner surface of the bucket elevator casing 17 and the surface of the bucket 21, the waveguide 45 w of the oscillator 45 is directed downward so that the microwave can enter the bucket 21 more effectively. By enabling the microwave M to oscillate toward the bottom surface of the opened bucket 21, the microwave attached to the load attached to the bucket 21 can be more reliably irradiated.

１０ 連続アンローダ
１７ バケットエレベータケーシング
２１ バケット
２２ チェーン
４０ 誘導加熱コイル
４５ 発振器 10 continuous unloader 17 bucket elevator casing 21 bucket 22 chain 40 induction heating coil 45 oscillator

Claims (4)

船倉内の荷をチェーンに連結されたバケットで掻き取って荷揚げする連続アンローダにおいて、バケットが昇降するバケットエレベータケーシングに誘導加熱コイルを設けたことを特徴とする連続アンローダの付着防止装置。   An apparatus for preventing adhesion of a continuous unloader, wherein an induction heating coil is provided in a bucket elevator casing in which the bucket moves up and down in a continuous unloader for scraping and unloading the load in the hold with a bucket connected to a chain. 誘導加熱コイルに、高周波電源が接続される請求項１記載の連続アンローダの付着防止装置。   The apparatus for preventing adhesion of a continuous unloader according to claim 1, wherein a high frequency power source is connected to the induction heating coil. 船倉内の荷をチェーンに連結されたバケットで掻き取って荷揚げする連続アンローダにおいて、バケットが昇降するバケットエレベータケーシング内にマイクロ波を発振する発振器を設けたことを特徴とする連続アンローダの付着防止装置。   In a continuous unloader for scraping and unloading cargo in a hold with a bucket connected to a chain, an oscillator for oscillating microwaves is provided in a bucket elevator casing in which the bucket moves up and down. . 発振器は、マイクロ波を下向きに降下するバケット内に発振する請求項３記載の連続アンローダの付着防止装置。   The continuous unloader adhesion preventing apparatus according to claim 3, wherein the oscillator oscillates in a bucket in which the microwave is lowered downward.
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CN106347937A (en) * 2016-10-09 2017-01-25 江苏万达丰重工机械有限公司 Chain bucket material-taking lifting mechanism for ship unloader
CN106348058A (en) * 2016-10-09 2017-01-25 江苏万达丰重工机械有限公司 Safety device in ship unloader hopper lifting mechanism

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