JP2019182631A - Moving device for fire grate in incinerator - Google Patents

Moving device for fire grate in incinerator Download PDF

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JP2019182631A
JP2019182631A JP2018077870A JP2018077870A JP2019182631A JP 2019182631 A JP2019182631 A JP 2019182631A JP 2018077870 A JP2018077870 A JP 2018077870A JP 2018077870 A JP2018077870 A JP 2018077870A JP 2019182631 A JP2019182631 A JP 2019182631A
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grate
incinerator
support column
arm
moving device
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JP6985649B2 (en
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善重 前田
Yoshishige Maeda
善重 前田
宏 角野
Hiroshi Kadono
宏 角野
宏実 板橋
Hiromi Itabashi
宏実 板橋
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JFE Engineering Corp
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JFE Engineering Corp
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Abstract

To provide a moving device for a fire grate in an incinerator capable of easily and safely performing grate maintenance work in the incinerator.SOLUTION: A moving device for a fire grate in an incinerator 30 comprises a prop 31 standing up in the incinerator, an arm 43 connected to the prop 31 and capable of turning in a horizontal plane, and an elevating device 47 attached to the arm 43 for hanging fire grates 11a and 12a. The prop 31 and the arm 43 can be divided so that the prop 31, the arm 43 and the elevating device 47 can be taken in and out of the incinerator through a manhole 8 of the incinerator.SELECTED DRAWING: Figure 2

Description

本発明は、焼却炉内で火格子を移動させるための焼却炉内火格子移動装置に関する。   The present invention relates to an incinerator grate moving device for moving a grate in an incinerator.

都市ごみ等を焼却する焼却炉のストーカーとして、可動火格子列と固定火格子列を廃棄物の送り方向に交互に配置したものが知られている。一つ置きに配置される可動火格子列を往復運動させると、可動火格子列及び固定火格子列の上の廃棄物が送り方向に移動する。可動火格子列及び固定火格子列の各火格子には、空気吹出孔が形成される。可動火格子列及び固定火格子列の下方の風箱に供給される燃焼用空気は、各火格子の空気吹出孔から廃棄物内に吹き出される。   2. Description of the Related Art As an incinerator stalker that incinerates municipal waste or the like, a movable grate row and a fixed grate row are alternately arranged in the waste feed direction. When the movable grate rows arranged alternately are reciprocated, the waste on the movable grate row and the fixed grate row moves in the feeding direction. Air blow holes are formed in each grate of the movable grate row and the fixed grate row. Combustion air supplied to the wind box below the movable grate row and the fixed grate row is blown into the waste from the air blowing holes of each grate.

ところで、可動火格子列及び固定火格子列とは、高温下で使用され、かつ互いに摺動自在なので、火格子に灰等が融着したり、火格子が摩耗したりする。このため、火格子を定期的に整備する必要がある(特許文献1参照)。   By the way, the movable grate train and the fixed grate train are used at high temperatures and are slidable with each other, so that ash or the like is fused to the grate or the grate is worn. For this reason, it is necessary to maintain a grate regularly (refer patent document 1).

従来の火格子整備作業は、ガーダと呼ばれるフレームから火格子を手作業で一つずつ取り外し、取り外した火格子を焼却炉内の作業台上に持ち運び、作業台上で火格子の研磨、清掃等を行い、必要に応じて火格子を交換することで行われる。   Conventional grate maintenance work involves manually removing the grate one by one from a frame called girder, carrying the removed grate onto the workbench in the incinerator, polishing and cleaning the grate on the workbench, etc. This is done by replacing the grate as necessary.

特開2017−116237号公報JP 2017-116237 A

しかし、火格子1個当たりの重量は例えば20kgもあり、焼却炉内で火格子を持ち運ぶのに過度の肉体的負担がかかるため、作業者に腰痛等が生じやすいという課題がある。   However, since the weight per grate is as much as 20 kg, for example, an excessive physical burden is required to carry the grate in the incinerator, so that there is a problem that back pain or the like is likely to occur in the operator.

また、火格子が重いので、作業者が火格子から手を離したときに火格子の下に指を挟む等の災害を引き起こすおそれがあり、安全性の面でも課題がある。   In addition, since the grate is heavy, there is a risk of causing a disaster such as a finger being pinched under the grate when an operator releases his hand from the grate, and there is a problem in terms of safety.

本発明は、このような事情に鑑みてなされたもので、焼却炉内での火格子整備作業を容易かつ安全に行うことができる焼却炉内火格子移動装置を提供することを目的とする。   This invention is made | formed in view of such a situation, and it aims at providing the grate moving apparatus in an incinerator which can perform the grate maintenance work in an incinerator easily and safely.

上記課題を解決するために、本発明の一態様は、焼却炉の内部に立設される支柱と、前記支柱に連結され、水平面内を旋回可能なアームと、前記アームに取り付けられ、火格子を吊るための昇降装置と、を備え、前記支柱、前記アーム及び前記昇降装置を前記焼却炉のマンホールから前記焼却炉の内部に出し入れできるように、少なくとも前記支柱と前記アームとが分割可能であることを特徴とする焼却炉内火格子移動装置である。   In order to solve the above-described problems, an aspect of the present invention includes a support column installed inside an incinerator, an arm connected to the support column and capable of turning in a horizontal plane, and attached to the arm, Elevating device for suspending, and at least the strut and the arm are separable so that the strut, the arm and the elevating device can be taken in and out of the incinerator through the manhole of the incinerator. This is an incinerator grate moving device characterized by that.

本発明によれば、焼却炉の内部に支柱、アーム及び昇降装置を備える焼却炉内火格子移動装置を組み立てることができる。この焼却炉内火格子移動装置を使用して火格子を移動させれば、火格子整備作業を容易かつ安全に行うことができる。   According to the present invention, it is possible to assemble a grate moving device in an incinerator including a column, an arm, and a lifting device inside the incinerator. If the grate is moved using the incinerator grate moving device, the grate maintenance work can be easily and safely performed.

本発明の一実施形態の火格子移動装置が適用される焼却炉の縦断面図である。It is a longitudinal section of an incinerator to which a grate moving device of one embodiment of the present invention is applied. 本実施形態の火格子移動装置の側面図(Y方向から見た側面図)である。It is a side view (side view seen from the Y direction) of the grate moving device of this embodiment. 本実施形態の火格子移動装置の側面図(X方向から見た側面図)である。It is a side view (side view seen from X direction) of the grate moving device of this embodiment. 火格子整備作業中の焼却炉の縦断面図である。It is a longitudinal cross-sectional view of the incinerator during a grate maintenance operation. 火格子整備作業中の焼却炉の水平面図である。It is a horizontal plan view of the incinerator during the grate maintenance work.

以下、添付図面を参照して、本発明の実施形態の焼却炉内火格子移動装置(以下、単に火格子移動装置という)を詳細に説明する。ただし、本発明の火格子移動装置は種々の形態で具体化することができ、明細書に記載される実施形態に限定されるものではない。本実施形態は、明細書の開示を十分にすることによって、当業者が発明を十分に理解できるようにする意図をもって提供されるものである。
(焼却炉)
Hereinafter, an incinerator grate moving device (hereinafter simply referred to as a grate moving device) according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. However, the grate moving apparatus of the present invention can be embodied in various forms and is not limited to the embodiments described in the specification. This embodiment is provided with the intention of enabling those skilled in the art to fully understand the invention by fully disclosing the specification.
(Incinerator)

まず、本発明の一実施形態の火格子移動装置が使用される焼却炉の構成を説明する。図1は、焼却炉の縦断面図を示す。1はホッパ、2は燃焼室、3はガス混合室である。   First, the structure of the incinerator in which the grate moving device of one embodiment of the present invention is used will be described. FIG. 1 shows a longitudinal sectional view of an incinerator. 1 is a hopper, 2 is a combustion chamber, and 3 is a gas mixing chamber.

クレーン4によってホッパ1に投入された廃棄物は、給じん装置5によって所定量ずつ燃焼室2に投入される。   The waste thrown into the hopper 1 by the crane 4 is put into the combustion chamber 2 by a predetermined amount by the dust feeder 5.

燃焼室2には、廃棄物を燃焼させながら送り方向(X方向)に移動させる火格子6a,6b,6cが設けられる。火格子6a,6b,6cは、廃棄物の送り方向に交互に配置された可動火格子列と固定火格子列を備え、一つ置きに配置される可動火格子列を往復運動させて、廃棄物を送り方向に移動させる。可動火格子列と固定火格子列の詳細は後述する。   The combustion chamber 2 is provided with grate 6a, 6b, 6c for moving waste in the feed direction (X direction) while burning the waste. The grate 6a, 6b, 6c is provided with movable grate rows and fixed grate rows arranged alternately in the waste feed direction, and reciprocating every other movable grate row to dispose of Move the object in the feed direction. Details of the movable grate train and the fixed grate train will be described later.

火格子6a,6b,6cは、上流側から乾燥段の火格子6a(No.1の風箱上の火格子6a)、燃焼段の火格子6b(No.2、No.3の風箱上の火格子6b)、後燃焼段の火格子6c(No.4の風箱上の火格子6c)に分類される。乾燥段の火格子6aは、廃棄物を乾燥及び一部を熱分解させる。燃焼段の火格子6bは、廃棄物を熱分解して、熱分解により発生させた可燃性ガス及び固形分を燃焼させる。後燃焼段の火格子6cは、固定炭素などの未燃分を燃焼させる。燃焼後の灰は、灰落下口7から排出される。   The grate 6a, 6b, 6c is from the upstream side of the grate 6a in the drying stage (grate 6a on the No. 1 wind box) and the grate 6b in the combustion stage (No. 2, on the wind box of No. 3). No. 4 grate 6b) and post-combustion stage grate 6c (No. 4 grate 6c on the wind box). The grate 6a in the drying stage dries waste and partially decomposes it. The combustion stage grate 6b thermally decomposes the waste and combusts the combustible gas and solid matter generated by the thermal decomposition. The post-combustion stage grate 6c burns unburned components such as fixed carbon. The ash after combustion is discharged from the ash drop opening 7.

ガス混合室3には、燃焼室2で燃焼した排ガス、及び燃焼室2で燃焼しきれなかった未燃ガスが送られる。ガス混合室3では、二次燃焼用空気を供給して未燃ガスを二次燃焼させる。二次燃焼させた後の排ガスは、ボイラーで熱回収された後に外部に放出される。
(火格子移動装置)
Exhaust gas burned in the combustion chamber 2 and unburned gas that could not be burned in the combustion chamber 2 are sent to the gas mixing chamber 3. In the gas mixing chamber 3, secondary combustion air is supplied to cause secondary combustion of unburned gas. The exhaust gas after the secondary combustion is discharged to the outside after heat recovery by the boiler.
(Grate moving device)

焼却炉での廃棄物の焼却に伴い、火格子6a,6b,6cに灰等が融着し、摩耗する。このため、火格子6a,6b,6cを定期的に整備する必要がある。火格子整備作業にあたって、火格子移動装置が使用される。   As the waste is incinerated in the incinerator, ash and the like are fused and worn on the grate 6a, 6b, 6c. For this reason, it is necessary to periodically maintain the grate 6a, 6b, 6c. A grate moving device is used for the grate maintenance work.

図2はY方向から見た本実施形態の火格子移動装置30の側面図を示し、図3はX方向から見た火格子移動装置30の側面図を示す。なお、以下において、説明の便宜上、図2、図3に示すX、Y、Zの各方向を用いて、火格子移動装置30の各構成を説明する。X方向は送り方向であり、Y方向は焼却炉の幅方向であり、Z方向は上下方向である。   2 shows a side view of the grate moving device 30 of the present embodiment as seen from the Y direction, and FIG. 3 shows a side view of the grate moving device 30 as seen from the X direction. In the following, for convenience of explanation, each configuration of the grate moving device 30 will be described using the X, Y, and Z directions shown in FIGS. 2 and 3. The X direction is the feeding direction, the Y direction is the width direction of the incinerator, and the Z direction is the vertical direction.

火格子移動装置30は、支柱31、アーム43及び昇降装置47を備える。支柱31、アーム43及び昇降装置47は分割可能であり、焼却炉のマンホール8(図1参照)から出し入れされる。   The grate moving device 30 includes a column 31, an arm 43, and a lifting device 47. The support column 31, the arm 43, and the lifting device 47 can be divided and are taken in and out from the manhole 8 (see FIG. 1) of the incinerator.

支柱31は、Z方向に延びる。支柱31は、下部支柱32、上部支柱33、旋回部34を備える。支柱31は、水平面内で旋回するアーム43を支持する役割を持つ。   The support column 31 extends in the Z direction. The column 31 includes a lower column 32, an upper column 33, and a turning unit 34. The column 31 has a role of supporting the arm 43 that rotates in a horizontal plane.

下部支柱32は、焼却炉のX方向に延びる中央仕切り板9(図5も参照)に連結される。中央仕切り板9には、下部支柱32を固定するためのねじ穴等を加工できない。このため、下部支柱32は、以下のように中央仕切り板9に連結される。   The lower support column 32 is connected to the central partition plate 9 (see also FIG. 5) extending in the X direction of the incinerator. The central partition plate 9 cannot be machined with a screw hole or the like for fixing the lower support column 32. For this reason, the lower support | pillar 32 is connected with the center partition plate 9 as follows.

図3に示すように、下部支柱32の下端部32aは、断面コ字状に形成されていて、互いに対向する一対の側壁36bと、一対の側壁36bを繋げる上部壁36aと、を備える(なお、図3には、倒れ防止部材35a,35bの連結部36の側壁36b及び上部壁36aを示すが、下部支柱32の下端部32aも同一の構成なので、同一の符号を使用する)。一対の側壁36bが中央仕切り板9を挟むように下部支柱32の下端部32aを中央仕切り板9上に載せ、一対の側壁36bに螺合させたボルトで中央仕切り板9を両側から挟むように締め付けて、下部支柱32の下端部32aを中央仕切り板9に連結する。   As shown in FIG. 3, the lower end 32a of the lower support column 32 is formed in a U-shaped cross section and includes a pair of side walls 36b facing each other and an upper wall 36a connecting the pair of side walls 36b (note that FIG. 3 shows the side wall 36b and the upper wall 36a of the connecting portion 36 of the fall prevention members 35a and 35b, but the lower end 32a of the lower support column 32 has the same configuration, and therefore the same reference numerals are used. A lower end 32a of the lower support column 32 is placed on the central partition plate 9 so that the pair of side walls 36b sandwich the central partition plate 9, and the central partition plate 9 is sandwiched from both sides by bolts screwed to the pair of side walls 36b. The lower end 32 a of the lower support column 32 is connected to the central partition plate 9 by tightening.

図2に示すように、下部支柱32の下端部32aを中央仕切り板9に連結するだけでは、支柱31がX方向に倒れるおそれがある。支柱31がX方向に倒れないように、支柱31はX方向の両側に設けられる倒れ防止部材35a,35bによって補強される。   As shown in FIG. 2, the column 31 may fall in the X direction only by connecting the lower end 32 a of the lower column 32 to the central partition plate 9. The support column 31 is reinforced by the fall prevention members 35a and 35b provided on both sides in the X direction so that the support column 31 does not fall in the X direction.

倒れ防止部材35a,35bは、下部支柱32の下端部32aからX方向に離れて中央仕切り板9に連結される連結部36と、連結部36と支柱31との間に掛け渡される補強バー37と、を備える。連結部36は、上記のように断面コ字状に形成される。一対の側壁36bに螺合させたボルトで中央仕切り板9を両側から挟むように締め付けて、連結部36を中央仕切り板9に連結する。   The fall prevention members 35 a and 35 b are separated from the lower end 32 a of the lower support column 32 in the X direction and connected to the central partition plate 9, and the reinforcing bar 37 spanned between the connection 36 and the support column 31. And comprising. The connecting portion 36 is formed in a U-shaped cross section as described above. The connecting portion 36 is connected to the central partition plate 9 by tightening the central partition plate 9 so as to be sandwiched from both sides with bolts screwed into the pair of side walls 36b.

上部支柱33は、下部支柱32の上端部に連結される。下部支柱32の上端部には、フランジ32bが一体に形成される。上部支柱33の下端部にも、フランジ33aが一体に形成される。下部支柱32と上部支柱33とは、フランジ32b,33aに通したボルトによって連結される。   The upper column 33 is connected to the upper end of the lower column 32. A flange 32 b is integrally formed at the upper end portion of the lower support column 32. A flange 33 a is also integrally formed at the lower end of the upper column 33. The lower support column 32 and the upper support column 33 are connected by bolts that pass through the flanges 32b and 33a.

旋回部34は、上部支柱33の上端部に連結される。旋回部34は、上部支柱33に固定された垂直軸38と、ベアリングを介して垂直軸38に回転可能に連結される本体部39と、を備える。垂直軸38の下端部には、フランジ38aが一体に形成される。上部支柱33の上端部には、フランジ33bが一体に形成される。旋回部34と上部支柱33とは、フランジ38a,33bに通したボルトによって連結される。   The turning part 34 is connected to the upper end part of the upper column 33. The swivel unit 34 includes a vertical shaft 38 fixed to the upper support column 33 and a main body 39 rotatably connected to the vertical shaft 38 via a bearing. A flange 38 a is integrally formed at the lower end portion of the vertical shaft 38. A flange 33 b is integrally formed at the upper end portion of the upper column 33. The swivel unit 34 and the upper column 33 are connected by bolts that pass through the flanges 38a and 33b.

また、下部支柱32、上部支柱33及び旋回部34は、例えば作業員が2人で焼却炉に出し入れできるような重さである。   Moreover, the lower support | pillar 32, the upper support | pillar 33, and the turning part 34 are the weight which an operator can take in and out of an incinerator, for example.

アーム43は、支柱31の旋回部34に連結される。アーム43は、第1アーム44、第2アーム45、垂直軸46を備える。アーム43は、水平面内で旋回可能であり、昇降装置47が吊り上げた火格子6a,6b,6cを水平方向に移動させる役割を持つ。アーム43は、手作業によって移動させられても、モータ等の駆動源によって移動させられてもよい。   The arm 43 is connected to the turning portion 34 of the support column 31. The arm 43 includes a first arm 44, a second arm 45, and a vertical shaft 46. The arm 43 can turn in a horizontal plane, and has a role of moving the grate 6a, 6b, 6c lifted by the lifting device 47 in the horizontal direction. The arm 43 may be moved manually or may be moved by a driving source such as a motor.

第1アーム44は、旋回部34に連結される。第1アーム44の基部には、フランジ44aが一体に形成される。旋回部34の本体部39にも、フランジ39aが一体に形成される。第1アーム44と旋回部34とは、フランジ44a,39aに通したボルトによって連結される。第1アーム44は、旋回部34に片持ち支持されるので、トラス構造によって補強される。   The first arm 44 is connected to the turning unit 34. A flange 44 a is formed integrally with the base portion of the first arm 44. A flange 39a is also formed integrally with the main body 39 of the turning portion 34. The 1st arm 44 and the turning part 34 are connected by the volt | bolt which let the flanges 44a and 39a pass. Since the first arm 44 is cantilevered by the turning portion 34, it is reinforced by the truss structure.

第2アーム45は、垂直軸46を介して第1アーム44の先端部に連結される。第1アーム44と第2アーム45とは、肘関節のように屈曲可能である。第2アーム45は、垂直軸46を介して第1アーム44に片持ち支持されるので、トラス構造によって補強される。   The second arm 45 is connected to the distal end portion of the first arm 44 via the vertical shaft 46. The first arm 44 and the second arm 45 can be bent like an elbow joint. Since the second arm 45 is cantilevered by the first arm 44 via the vertical shaft 46, it is reinforced by the truss structure.

昇降装置47は、チェーンブロック、電動式ホイスト等から構成される。昇降装置47は、火格子6a,6b,6cを吊り上げる役割を持つ。昇降装置47は、フック等により第2アーム45の先端に取り付けられる。昇降装置47の下端部には、火格子6a,6b,6cを掴むクランプ48が設けられる。   The lifting device 47 includes a chain block, an electric hoist and the like. The lifting device 47 has a role of lifting the grate 6a, 6b, 6c. The elevating device 47 is attached to the tip of the second arm 45 by a hook or the like. A clamp 48 that holds the grate 6a, 6b, 6c is provided at the lower end of the lifting device 47.

図3に示すように、振れ止め部材41は、中央部ロッド41a、一対の端部ロッド41b、一対のジャッキ41cを備える。振れ止め部材41は、支柱31の上端部に連結される。振れ止め部材41は、Y方向に延びて対向する一対の炉壁40,40間に掛け渡される。振れ止め部材41は、支柱31がY方向に倒れないように補強する役割を持つ。   As shown in FIG. 3, the steadying member 41 includes a central rod 41a, a pair of end rods 41b, and a pair of jacks 41c. The steadying member 41 is connected to the upper end portion of the column 31. The steady rest member 41 extends between the pair of facing furnace walls 40, 40 extending in the Y direction. The steadying member 41 has a role of reinforcing the support column 31 so as not to fall in the Y direction.

中央部ロッド41aは、旋回部34の垂直軸38に連結される。一対の端部ロッド41bは、中央部ロッド41aに対して軸方向に位置調節可能に連結される。ジャッキ41cは、端部ロッド41bに取り付けられる。振れ止め部材41の長さを調節した後、ジャッキ41cを作動させて、振れ止め部材41を炉壁40にしっかりと固定する。   The center part rod 41 a is connected to the vertical shaft 38 of the turning part 34. The pair of end rods 41b are connected to the central rod 41a so as to be positionally adjustable in the axial direction. The jack 41c is attached to the end rod 41b. After adjusting the length of the steady member 41, the jack 41c is operated to firmly fix the steady member 41 to the furnace wall 40.

第1アーム44、第2アーム45、昇降装置47及び振れ止め部材41は、例えば作業員が1人で焼却炉に出し入れできるような重さである。   The 1st arm 44, the 2nd arm 45, the raising / lowering apparatus 47, and the steadying member 41 are the weight which an operator can take in and out to an incinerator by one person, for example.

以上に本実施形態の火格子移動装置30の構成を説明した。本実施形態の火格子移動装置30によれば、以下の効果を奏する。   The configuration of the grate moving device 30 of the present embodiment has been described above. According to the grate moving device 30 of the present embodiment, the following effects can be obtained.

火格子移動装置30が、支柱31、アーム43及び昇降装置47を備えるので、火格子移動装置30によって火格子6a,6b,6cを吊り上げ、吊り上げた火格子6a,6b,6cを焼却炉内で移動させることができる。また、支柱31、アーム43及び昇降装置47が分割可能であるので、焼却炉のマンホール8からこれらを出し入れし、焼却炉内で火格子移動装置30を組み立てることができる。   Since the grate moving device 30 includes the support 31, the arm 43, and the lifting device 47, the grate 6 a, 6 b, 6 c is lifted by the grate moving device 30, and the hung grate 6 a, 6 b, 6 c is lifted in the incinerator. Can be moved. Moreover, since the support | pillar 31, the arm 43, and the raising / lowering apparatus 47 can be divided | segmented, these can be taken in / out from the manhole 8 of an incinerator, and the grate moving apparatus 30 can be assembled in an incinerator.

支柱31の下端部32aを焼却炉のX方向に延びる中央仕切り板9に連結するので、焼却炉の中央に火格子移動装置30を配置することができる。   Since the lower end 32a of the support column 31 is connected to the central partition plate 9 extending in the X direction of the incinerator, the grate moving device 30 can be arranged in the center of the incinerator.

支柱31の上端部にY方向に延びる振れ止め部材41を連結するので、支柱31がY方向に倒れるのを防止できる。   Since the steadying member 41 extending in the Y direction is connected to the upper end portion of the support column 31, the support column 31 can be prevented from falling in the Y direction.

支柱31をX方向に離れて配置される倒れ防止部材35a,35bによって補強するので、支柱31がX方向に倒れるのを防止することができる。   Since the support column 31 is reinforced by the fall-preventing members 35a and 35b arranged apart in the X direction, the support column 31 can be prevented from falling in the X direction.

下部支柱32、上部支柱33、旋回部34が分割可能であるので、焼却炉内への支柱31の出し入れが容易になる。   Since the lower column 32, the upper column 33, and the swivel unit 34 can be divided, the column 31 can be easily put in and out of the incinerator.

アーム43が第1アーム44、第2アーム45、垂直軸46を備えるので、アーム43の作動範囲を広げることができ、火格子6a,6b,6cを吊り上げるときの芯出しが容易になる。また、第1アーム44、第2アーム45が分割可能であるので、焼却炉内へのアーム43の出し入れが容易になる。
(火格子整備作業)
Since the arm 43 includes the first arm 44, the second arm 45, and the vertical shaft 46, the operating range of the arm 43 can be expanded, and centering when lifting the grate 6a, 6b, 6c is facilitated. Moreover, since the 1st arm 44 and the 2nd arm 45 can be divided | segmented, taking in / out of the arm 43 in an incinerator becomes easy.
(Grate maintenance work)

図4は火格子整備作業中の焼却炉の縦断面図を示し、図5は火格子整備作業中の焼却炉の水平断面図を示す。なお、図4、図5においては、廃棄物の送り方向であるX方向が図1と逆であり、右側が上流側で左側が下流側である。   4 shows a longitudinal sectional view of the incinerator during the grate maintenance work, and FIG. 5 shows a horizontal sectional view of the incinerator during the grate maintenance work. 4 and 5, the X direction, which is the waste feeding direction, is opposite to that in FIG. 1, and the right side is the upstream side and the left side is the downstream side.

図4、図5を参照して、可動火格子列11、固定火格子列12を説明する。図4に示すように、可動火格子列11と固定火格子列12は、送り方向Xに交互に配置される。図5に示すように、可動火格子列11は、X方向に直角なY方向に並べられた複数の可動火格子11a(以下、単に火格子11aという)によって構成される。固定火格子列12も、Y方向に並べられた複数の固定火格子12a(以下、単に火格子12aという)から構成される。   The movable grate row 11 and the fixed grate row 12 will be described with reference to FIGS. As shown in FIG. 4, the movable grate rows 11 and the fixed grate rows 12 are alternately arranged in the feed direction X. As shown in FIG. 5, the movable grate array 11 is composed of a plurality of movable grate 11a (hereinafter simply referred to as a grate 11a) arranged in the Y direction perpendicular to the X direction. The fixed grate array 12 is also composed of a plurality of fixed grate 12a (hereinafter simply referred to as a grate 12a) arranged in the Y direction.

図4に示すように、可動火格子列11の各火格子11aには、上流側端部の下側に係合凹部13が形成され、下流側端部に空気吹出孔14が形成される。火格子11aの係合凹部13は、Y方向に延びるシャフト15に着脱可能に載置される。火格子11aの下流側端部は、下流側に位置する固定火格子列12の火格子12aの上に載る。シャフト15は、可動フレーム16に支持される。可動フレーム16は、油圧シリンダ17によって往復運動される。可動フレーム16が往復運動すると、可動フレーム16と一緒に可動火格子列11が往復運動し、廃棄物がX方向に送られる。   As shown in FIG. 4, in each grate 11a of the movable grate row 11, an engagement recess 13 is formed below the upstream end, and an air blowing hole 14 is formed at the downstream end. The engaging recess 13 of the grate 11a is detachably mounted on a shaft 15 extending in the Y direction. The downstream end of the grate 11a rests on the grate 12a of the fixed grate row 12 located on the downstream side. The shaft 15 is supported by the movable frame 16. The movable frame 16 is reciprocated by a hydraulic cylinder 17. When the movable frame 16 reciprocates, the movable grate train 11 reciprocates together with the movable frame 16, and waste is sent in the X direction.

固定火格子列12の火格子12aにも、火格子11aと同様に係合凹部19と空気吹出孔20が形成される。係合凹部19は、Y方向に延びるシャフト21に着脱可能に載置される。火格子12aの下流側端部は、下流側に位置する可動火格子列11の火格子11aの上に載る。シャフト21は、固定フレーム22に支持される。   Similarly to the grate 11a, the engagement recess 19 and the air blowing hole 20 are formed in the grate 12a of the fixed grate row 12 as well. The engaging recess 19 is detachably mounted on a shaft 21 extending in the Y direction. The downstream end of the grate 12a is placed on the grate 11a of the movable grate row 11 located on the downstream side. The shaft 21 is supported by the fixed frame 22.

図4、図5を参照して、火格子移動装置30の組み立て後の整備作業を説明する。可動火格子列11のY方向に隣り合う火格子11aは、ボルトによって連結されている。固定火格子列12のY方向に隣り合う火格子12aも同様である。火格子11a,12aの整備作業にあたって、まず作業員Aが火格子11a,12aを連結するボルトを取り外す。取り外し作業は、火格子11a,12a下の風箱内で行われる。   With reference to FIGS. 4 and 5, the maintenance work after the assembly of the grate moving device 30 will be described. The grate 11a adjacent to the movable grate row 11 in the Y direction is connected by a bolt. The same applies to the grate 12a adjacent to the fixed grate row 12 in the Y direction. In maintenance work of the grate 11a, 12a, the worker A first removes the bolts connecting the grate 11a, 12a. The removal work is performed in a wind box below the grate 11a, 12a.

図5に示すように、取り外された火格子11a,12aは、火格子移動装置30を使用して作業台51上に移動される。作業台51では、作業員Bが火格子11a,12aを点検する。点検を終えた火格子11a,12aは、火格子移動装置30を使用して作業台52上に移動される。作業台52では、作業員C,Dはグラインダーやエアーチッパーにより火格子11a,12aを研磨、清掃する。研磨、清掃を終えた火格子11a,12aは、火格子移動装置30を使用して可動火格子列11及び固定火格子列12の所定の位置に戻される。なお、図5において、9は中央仕切り板、10a,10bはサイドシール金物、10cはフレームに載せられる足場板である。   As shown in FIG. 5, the removed grate 11 a and 12 a are moved onto the work table 51 using the grate moving device 30. On the work table 51, the worker B inspects the grate 11a, 12a. The grates 11 a and 12 a that have been inspected are moved onto the work table 52 using the grate moving device 30. On the work table 52, workers C and D grind and clean the grate 11a and 12a with a grinder or an air chipper. The grates 11 a and 12 a that have been polished and cleaned are returned to predetermined positions of the movable grate row 11 and the fixed grate row 12 using the grate moving device 30. In FIG. 5, 9 is a central partition plate, 10a and 10b are side seal hardware, and 10c is a scaffold plate placed on the frame.

火格子移動装置30を使用することで、以下の理由により整備作業が容易になる。火格子11a,12aをまとめて、例えば5個連結した状態で脱着でき、残りのボルトは作業台上で楽な姿勢で脱着できるので、整備作業が容易になる。また、火格子11a,12a下の風箱内でのボルトの脱着数も減るので、整備作業が容易になる。   Use of the grate moving device 30 facilitates maintenance work for the following reason. The grate 11a and 12a can be attached and detached in a state where, for example, five are connected together, and the remaining bolts can be attached and detached in an easy posture on the work table, so that maintenance work is facilitated. In addition, since the number of bolts in the wind box below the grate 11a, 12a is reduced, maintenance work is facilitated.

火格子移動装置30を使用することで、以下の理由から安全性も向上する。手作業による重量物のハンドリングが研磨、清掃、ボルト脱着時の最低限に激減するので、安全性が向上する。また、従来では、固定火格子列12のボルト脱着は、可動火格子列11の前進端で行い、可動火格子列11のボルト脱着は、可動火格子列11の後進端で行う必要があった。すなわち、可動火格子列11の前進端と後進端の2回に分けて、ボルト脱着を行う必要があった。しかし、火格子移動装置30を使用すれば、火格子11a,12aを引き出すことができるので、可動火格子列11の中間位置で固定火格子列12と可動火格子列11両方のボルト脱着を行うことができる。さらに、火格子整備作業中に可動火格子列11を動かさないので、安全性が向上する。   By using the grate moving device 30, safety is also improved for the following reasons. The handling of heavy objects by hand is drastically reduced to the minimum at the time of polishing, cleaning, and bolt removal, thus improving safety. Further, conventionally, the bolts of the fixed grate train 12 have to be removed / attached at the forward end of the movable grate train 11, and the bolts of the movable grate train 11 have to be removed at the backward end of the movable grate train 11. . That is, it is necessary to detach the bolt in two steps, that is, the forward end and the reverse end of the movable grate row 11. However, if the grate moving device 30 is used, the grate 11a and 12a can be pulled out, so that the bolts of both the fixed grate row 12 and the movable grate row 11 are attached and detached at an intermediate position of the movable grate row 11. be able to. Furthermore, since the movable grate train 11 is not moved during the grate maintenance work, safety is improved.

なお、本発明は上記実施形態に具現化されるのに限られることはなく、本発明の要旨を変更しない範囲で他の実施形態に変更可能である。   Note that the present invention is not limited to the embodiment described above, and can be changed to other embodiments without departing from the gist of the present invention.

上記実施形態では、固定火格子列と可動火格子列を水平に配置しているが、固定火格子列と可動火格子列を階段状に配列することも斜めに配置することも可能である。   In the above embodiment, the fixed grate train and the movable grate train are arranged horizontally, but the fixed grate train and the movable grate train can be arranged stepwise or obliquely.

8…マンホール
9…中央仕切り板
11a,12a…火格子
30…焼却炉内火格子移動装置
31…支柱
32…下部支柱
32a…支柱の下端部
33…上部支柱
34…旋回部
35a,35b…倒れ防止部材
38…垂直軸
40…炉壁
41…振れ止め部材
43…アーム
44…第1アーム
45…第2アーム
46…垂直軸
47…昇降装置
8 ... Manhole 9 ... Central partition plates 11a, 12a ... Grate 30 ... Grate moving device 31 in the incinerator 31 ... Column 32 ... Lower column 32a ... Lower column 33 of column ... Upper column 34 ... Swivel unit 35a, 35b ... Prevention of collapse Member 38 ... Vertical shaft 40 ... Furnace wall 41 ... Stabilization member 43 ... Arm 44 ... First arm 45 ... Second arm 46 ... Vertical shaft 47 ... Lifting device

Claims (6)

焼却炉の内部に立設される支柱と、
前記支柱に連結され、水平面内を旋回可能なアームと、
前記アームに取り付けられ、火格子を吊るための昇降装置と、を備え、
前記支柱、前記アーム及び前記昇降装置を前記焼却炉のマンホールから前記焼却炉の内部に出し入れできるように、少なくとも前記支柱と前記アームとが分割可能であることを特徴とする焼却炉内火格子移動装置。
A support column installed inside the incinerator;
An arm connected to the support column and capable of turning in a horizontal plane;
A lifting device attached to the arm and for hanging a grate,
At least the support column and the arm can be divided so that the support column, the arm, and the lifting device can be taken in and out of the incinerator through a manhole of the incinerator. apparatus.
前記支柱の下端部が、燃焼物の送り方向であるX方向に延びる中央仕切り板に連結されることを特徴とする請求項1に記載の焼却炉内火格子移動装置。   2. The incinerator grate moving device according to claim 1, wherein a lower end portion of the support column is connected to a central partition plate extending in an X direction which is a combustion material feeding direction. 前記支柱の上端部が、前記X方向に直角なY方向に延び、両端部が前記焼却炉の炉壁に接触する振れ止め部材に連結されることを特徴とする請求項2に記載の焼却炉内火格子移動装置。   3. The incinerator according to claim 2, wherein an upper end portion of the support column extends in a Y direction perpendicular to the X direction, and both end portions are connected to a steady member that contacts a furnace wall of the incinerator. Inner grate moving device. 前記支柱は、前記支柱の前記下端部から前記X方向に離れて前記中央仕切り板に連結される倒れ防止部材によって補強されることを特徴とする請求項2又は3に記載の焼却炉内火格子移動装置。   4. The incinerator grate according to claim 2, wherein the support column is reinforced by a fall prevention member that is separated from the lower end portion of the support column in the X direction and is connected to the central partition plate. Mobile device. 前記支柱は、下部支柱と、前記下部支柱に連結される上部支柱と、前記上部支柱に垂直軸の回りを回転可能に連結される旋回部と、を備え、
前記下部支柱、前記上部支柱及び前記旋回部が分割可能であることを特徴とする請求項1ないし4のいずれか一項に記載の焼却炉内火格子移動装置。
The support column includes a lower support column, an upper support column connected to the lower support column, and a swivel unit connected to the upper support column so as to be rotatable about a vertical axis.
5. The incinerator grate moving device according to claim 1, wherein the lower support column, the upper support column, and the swivel unit are separable.
前記アームは、前記支柱に連結される第1アームと、前記第1アームに垂直軸の回りを回転可能に連結される第2アームと、を備え、
前記第1アーム及び前記第2アームが分割可能であることを特徴とする請求項1ないし5のいずれか一項に記載の焼却炉内火格子移動装置。
The arm includes a first arm coupled to the support column, and a second arm coupled to the first arm so as to be rotatable about a vertical axis.
6. The incinerator grate moving device according to claim 1, wherein the first arm and the second arm can be divided.
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Publication number Priority date Publication date Assignee Title
KR20210083121A (en) * 2019-12-26 2021-07-06 김영복 Apparatus for opening/closing ladle gate of TLC

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Publication number Priority date Publication date Assignee Title
JPS5771183U (en) * 1980-10-15 1982-04-30
JPH03216495A (en) * 1990-01-19 1991-09-24 Kito Corp Truck crane having swivel resistance giving device
JP2006240878A (en) * 2005-03-04 2006-09-14 Kazuyoshi Asai Simple crane apparatus
JP2017116237A (en) * 2015-12-25 2017-06-29 三菱重工環境・化学エンジニアリング株式会社 Inspection device and inspection method for stoker furnace

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5771183U (en) * 1980-10-15 1982-04-30
JPH03216495A (en) * 1990-01-19 1991-09-24 Kito Corp Truck crane having swivel resistance giving device
JP2006240878A (en) * 2005-03-04 2006-09-14 Kazuyoshi Asai Simple crane apparatus
JP2017116237A (en) * 2015-12-25 2017-06-29 三菱重工環境・化学エンジニアリング株式会社 Inspection device and inspection method for stoker furnace

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210083121A (en) * 2019-12-26 2021-07-06 김영복 Apparatus for opening/closing ladle gate of TLC
KR102308088B1 (en) * 2019-12-26 2021-09-30 김영복 Apparatus for opening/closing ladle gate of TLC

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