JP2501527B2 - Soundproofing device for dismantling the chimney lining layer - Google Patents
Soundproofing device for dismantling the chimney lining layerInfo
- Publication number
- JP2501527B2 JP2501527B2 JP5112525A JP11252593A JP2501527B2 JP 2501527 B2 JP2501527 B2 JP 2501527B2 JP 5112525 A JP5112525 A JP 5112525A JP 11252593 A JP11252593 A JP 11252593A JP 2501527 B2 JP2501527 B2 JP 2501527B2
- Authority
- JP
- Japan
- Prior art keywords
- chimney
- lining layer
- cover body
- sound
- barrel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Lining And Supports For Tunnels (AREA)
- Working Measures On Existing Buildindgs (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は、煙突内面にライニング
されたライニング層を破砕除去する時に生じる騒音を遮
蔽して騒音公害を防ぐ煙突ライニング層解体用防音装置
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a noise control device for dismantling a chimney lining layer, which shields noise generated when the lining layer lined on the inner surface of the chimney is crushed and removed to prevent noise pollution.
【0002】[0002]
【従来の技術】従来、煙突筒身の内面にライニングされ
たライニング層を衝撃工具を使用して剥離除去すると、
大きな衝撃音が生じて騒音公害を起こすおそれがあっ
た。2. Description of the Related Art Conventionally, when a lining layer lined on the inner surface of a chimney barrel is peeled and removed using an impact tool,
There was a possibility that a loud impact noise would be generated and cause noise pollution.
【0003】[0003]
【発明が解決しようとする課題】とくに煙突ライニング
層の剥離作業では、衝撃工具の衝撃音は筒身や煙突頂部
から空中に伝わり、特に衝撃工具が直接作用する作業位
置近傍の筒身から騒音が発生する度合いが激しく、具体
的な防音対策は殆ど行われていない。Particularly, in the peeling work of the chimney lining layer, the impact sound of the impact tool is transmitted to the air from the barrel and the top of the chimney, and especially the noise from the barrel near the working position where the impact tool directly acts. The degree of occurrence is severe, and almost no concrete soundproofing measures have been taken.
【0004】この対策として、煙突全体を遮音壁で覆う
ことも考えられるが、100〜250mのもの高さの煙
突では、コストも工事期間も長なって現実的ではない。
本発明は、上記問題点を解決して高い煙突であっても、
ライニング層の剥離除去作業の騒音を効果的に減少させ
ることができる煙突ライニング層解体用防音装置を提供
することを目的とする。As a countermeasure against this, it is conceivable to cover the entire chimney with a sound insulating wall, but a chimney having a height of 100 to 250 m is not realistic because the cost and the construction period are long.
The present invention solves the above problems and is a high chimney,
It is an object of the present invention to provide a soundproofing device for dismantling a chimney lining layer, which can effectively reduce the noise of the work of peeling and removing the lining layer.
【0005】[0005]
【課題を解決するための手段】上記問題点を解決するた
めに本発明の煙突ライニング層解体用防音装置は、騒音
抑制手段を有して煙突に外嵌する遮音カバーを昇降駆動
装置により昇降自在に配置し、前記昇降駆動装置を操作
して煙突内のライニング層の解体作業を行うライニング
層除去作業位置の外周部に遮音カバーを昇降移動させる
遮音カバー位置制御装置を設けたものである。In order to solve the above problems, a soundproofing device for dismantling a chimney lining layer of the present invention has a noise suppressing means and a sound insulating cover fitted on the chimney can be raised and lowered by a lifting drive device. A sound insulation cover position control device for moving the sound insulation cover up and down is provided on the outer peripheral portion of the lining layer removing work position where the above-mentioned lifting drive device is operated to dismantle the lining layer in the chimney.
【0006】上記第1の手段に、遮音カバーを周方向に
複数に分割した分割カバー体で構成し、これら分割カバ
ー体をそれぞれ煙突筒身に密着させる密着固定手段を設
けたものである。In the first means, the sound insulation cover is composed of a plurality of divided cover bodies divided in the circumferential direction, and the fixed cover means is provided to bring the divided cover bodies into close contact with the chimney cylinder body.
【0007】また第2の手段において、騒音抑制手段
を、分割カバー体内に装着された吸音材により構成した
ものである。さらに第2の手段において、騒音抑制手段
を、遮音カバー体内に取り付けられて煙突筒身に密着さ
れ煙突筒身の振動を減衰させる防振材により構成したも
のである。In the second means, the noise suppressing means is composed of a sound absorbing material mounted in the divided cover body. Further, in the second means, the noise suppressing means is constituted by a vibration isolator that is attached inside the sound insulation cover body and is in close contact with the chimney cylinder body to damp the vibration of the chimney cylinder body.
【0008】さらにまた第2の手段において、騒音抑制
手段を、分割カバー体の外面に取り付けられて下部が外
側に傾斜し煙突筒身から伝達される音を上方に拡散放出
する複数の音圧変向板で構成したものである。Furthermore, in the second means, the noise suppressing means is attached to the outer surface of the split cover body, and a plurality of sound pressure changing means for diffusing and releasing upward the sound transmitted from the chimney barrel by lowering the lower part to the outside. It is composed of facing plates.
【0009】また、第2の手段において、密着固定手段
を、分割カバー体を互いに連結して周方向に接近離間可
能なカバー体連結固定装置により構成したものである。
さらに第2の手段において、密着固定手段を、カバー体
に取り付けられて煙突筒身に吸着する磁石により構成し
たものである。Further, in the second means, the close contact fixing means is constituted by a cover body connecting and fixing device which connects the divided cover bodies to each other and can approach and separate in the circumferential direction.
Further, in the second means, the close contact fixing means is constituted by a magnet attached to the cover body and attracted to the chimney cylinder body.
【0010】さらにまた、第2の手段において、密着固
定手段を、煙突筒身との間に内部空間を形成する分割カ
バー体と、この分割カバー体に接続され内部空間を負圧
にして分割カバー体を煙突筒身に吸着可能な吸引ホース
とで構成したものである。Furthermore, in the second means, the close contact fixing means is a split cover that forms an internal space between the tight fixing means and the chimney barrel.
Negative pressure in the internal space connected to the bar body and this divided cover body
Suction hose that can be attached to the chimney cylinder
It is composed of and .
【0011】[0011]
【作用】上記第1の手段によれば、遮音カバー位置制御
装置により、遮音カバーをライニング層除去作業位置に
対応して昇降させ、最大の騒音発生源となる剥離作業位
置の筒身の外周部を覆うので、効果的に騒音を減少させ
ることができ、煙突全体を覆うのに比べて設置作業も短
時間ですみ、低コストで効果的な遮音を行うことができ
る。According to the first means, the sound insulation cover position control device raises and lowers the sound insulation cover in correspondence with the lining layer removing work position, and the outer peripheral portion of the tubular body at the peeling work position becomes the maximum noise generation source. Since it covers the roof, the noise can be effectively reduced, and the installation work can be completed in a shorter time than when covering the entire chimney, and effective sound insulation can be performed at low cost.
【0012】第2の手段によれば、遮音カバーを複数の
分割カバー体により構成したので、高い煙突でも組立が
容易で、さらに幾分テーパー状の煙突にも対応すること
ができるとともに、煙突の突起物を回避して取り付ける
ことができる。また密着固定手段により、分割カバーを
それぞれ筒身に密着させるので、遮音効果をより向上さ
せることができる。According to the second means, since the sound insulating cover is composed of a plurality of divided cover bodies, it is easy to assemble even a high chimney, and it is possible to cope with a somewhat tapered chimney, and the chimney It can be installed avoiding protrusions. Moreover, since the divided covers are brought into close contact with the barrels by the close contact fixing means, the sound insulation effect can be further improved.
【0013】第3の手段によれば、分割カバー体内に吸
音材を設けることにより、筒身から発生する音のエネル
ギーを吸収してより効果的に騒音を減少させることがで
きる。According to the third means, by providing the sound absorbing material in the divided cover body, it is possible to absorb the energy of the sound generated from the barrel and reduce the noise more effectively.
【0014】第4の手段によれば、分割カバー体内に設
けた防振材を筒身に密着させることにより、ライニング
層剥離時に筒身に生じる振動を効果的に減衰して騒音の
発生を防止し、騒音の発生を効果的に抑制することがで
きる。According to the fourth means, the vibration-proof material provided in the divided cover body is brought into close contact with the barrel, so that the vibration generated in the barrel when the lining layer is peeled off is effectively damped to prevent the generation of noise. However, the generation of noise can be effectively suppressed.
【0015】第5の手段によれば、筒身に対して上方に
向いて傾斜する音圧変向板により、筒身から発生した騒
音を上方に向けて放散させるので、直接波が下方に向け
て放射されるのを防ぎ、近隣の工場内や住宅地への直接
波や反射波による騒音を効果的に減少させることができ
る。According to the fifth means, since the sound pressure deflecting plate inclined upward with respect to the barrel dissipates the noise generated from the barrel upward, the direct wave is directed downward. It is possible to prevent the radiation from being radiated and effectively reduce the noise caused by direct waves and reflected waves in the neighboring factories and residential areas.
【0016】第6の手段によれば、カバー体連結固定装
置により、分割カバー体を互いに周方向に接近して筒身
を締め付け固定するので、昇降移動時には遮音カバーを
一体として取り扱うことができ、分割カバー体を個々に
操作するのに比べて昇降移動や位置決めが容易に行え
る。またテーパー状の煙突や途中に異径部が形成された
煙突にも対応することができる。According to the sixth means, the cover body connecting and fixing device brings the divided cover bodies closer to each other in the circumferential direction to fasten and fix the cylinder body, so that the sound insulation cover can be handled as a unit when moving up and down. Elevating movement and positioning can be performed easily compared to operating the divided cover bodies individually. Further, it is possible to deal with a tapered chimney or a chimney having a different diameter portion formed on the way.
【0017】第7の手段によれば、磁石により分割カバ
ー体を筒身に固定するので、分割カバー体と筒身との密
着度を向上させることができ、騒音の遮音をより効果的
に行うことができる。分離も電磁石や極特性を利用した
切換手段により容易に行うことができる。According to the seventh means, since the split cover body is fixed to the barrel by the magnet, the degree of adhesion between the split cover body and the barrel can be improved, and noise can be effectively insulated. be able to. Separation can also be easily performed by a switching means utilizing electromagnets or polar characteristics.
【0018】第8の手段によれば、筒身に臨む内部空間
の面積を大きくすることにより、大きい吸着力が得られ
るとともに、密度の薄い内部空間の空気により音の伝播
率を低下させて音圧の減衰を増大させることができる。According to the eighth means, a large suction force can be obtained by increasing the area of the internal space facing the tube body, and at the same time, the air in the internal space having a low density lowers the sound propagation rate to reduce the sound. The pressure decay can be increased.
【0019】[0019]
【実施例】以下、本発明に係る煙突ライニング層解体用
防音装置の一実施例を図1〜図5に基づいて説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a soundproofing device for dismantling a chimney lining layer according to the present invention will be described below with reference to FIGS.
【0020】この防音装置が使用される煙突ライニング
層破砕設備は、図1に示すように、煙突1の頂部からワ
イヤロープ2を介してゴンドラ3を吊り下げるととも
に、前記ワイヤロープ2の基端部を外部に設けた破砕装
置用ウインチ4のドラムに巻取ってゴンドラ3を昇降自
在に吊持され、このゴンドラ3に空気ハンマー等の駆動
装置により振動させたタガネ等の衝撃工具を、煙突1の
筒身1aの内面にライニングされたライニング層1bに
押し付けて破砕落下させるライニング層破砕装置5が設
けられている。As shown in FIG. 1, the chimney lining layer crushing equipment using this soundproofing device suspends a gondola 3 from the top of the chimney 1 via a wire rope 2 and at the base end of the wire rope 2. Is wound around a drum of a winch 4 for a crushing device provided outside, and a gondola 3 is suspended so that the gondola 3 can be lifted up and down. A lining layer crushing device 5 that presses against the lining layer 1b lined on the inner surface of the barrel 1a and crushes and drops is provided.
【0021】一方、防音装置は、煙突1の頂部からワイ
ヤロープ11を介して吊り下げた遮音カバー12を、外
部に設けた防音装置用ウインチ13のドラムにワイヤロ
ープ11を巻取って昇降自在とし、破砕装置用ウインチ
4のモーターの回転角を検出器で検出してゴンドラ3の
位置を検知し、この検出値に基づいて防音装置用ウイン
チ13のモーターを駆動し、ゴンドラ3の昇降作業位置
に対応してその外周部に遮音カバー12を昇降移動させ
る遮音カバー位置制御装置14が設けられている。On the other hand, in the soundproof device, the sound insulation cover 12 hung from the top of the chimney 1 via the wire rope 11 is wound around the drum of the winch 13 for the soundproof device provided outside so that it can be moved up and down. , The position of the gondola 3 is detected by detecting the rotation angle of the motor of the winch 4 for the crushing device, and the motor of the winch 13 for the soundproofing device is driven based on the detected value to move the gondola 3 up and down. Correspondingly, a sound insulation cover position control device 14 for moving the sound insulation cover 12 up and down is provided on the outer peripheral portion thereof.
【0022】この遮音カバー12は、たとえば図2に示
すように、周方向に2分割した一対の半円筒状分割カバ
ー体21からなり、煙突1の外側に付設した梯子などの
突起物を避けて煙突1の筒身1aの外周部を覆うことが
できる。この半円筒状分割カバー体21は、半円状の上
下周枠21a,21bと一対の側枠21cに筒状格子フ
レーム21dを取り付けて形成され、外面が騒音抑制手
段の一例である遮音シート22で覆われている。As shown in FIG. 2, for example, the sound insulation cover 12 is composed of a pair of semi-cylindrical split cover bodies 21 that are circumferentially split into two, and avoid projections such as ladders attached to the outside of the chimney 1. The outer peripheral portion of the barrel 1a of the chimney 1 can be covered. This semi-cylindrical divided cover body 21 is formed by attaching a cylindrical lattice frame 21d to semicircular upper and lower peripheral frames 21a and 21b and a pair of side frames 21c, and an outer surface thereof is a sound insulating sheet 22 which is an example of noise suppressing means. Is covered with.
【0023】この遮音カバー12は、煙突1の筒身1a
に密着させる密着固定手段として、分割カバー体21の
上下周枠21a,21bおよび側枠21cにそれぞれ着
磁装置24が設けられている。この着磁装置24は、図
3〜図5に示すように、上下周枠21a,21bおよび
側枠21cに、連結部25aが可撓性材料で形成された
マグネットベース25が取り付けられ、このマグネット
ベース25の内面に長さ方向に所定間隔ごとに形成され
た収納凹部26内に、開口部に面してN極とS極が交互
に配置された接地用磁石27が配置されるとともに、奥
部にN極とS極が交互に配置されて配列方向に移動自在
な切換用磁石28が配置され、マグネットベース25に
は切換用磁石28を移動して切換用磁石28と接地用磁
石27の接触する極性を変化させて接地用磁石27の磁
力を増大または消去する切換用駆動装置(たとえばソレ
ノイドやシリンダー装置、レバー機構など)29が設け
られている。したがって、切換用駆動装置29により、
切換用磁石28と接地用磁石27の接触する極性を同一
にして接地用磁石27の磁力を増大させ、撓む連結部2
5aを介してマグネットベース25を筒身1aに確実に
着磁させることができ、反対に切換用磁石28と接地用
磁石27の接触する極性を相違させて接地用磁石27の
磁力を消去し、マグネットベース25を筒身1aから離
間させることができる。The sound insulation cover 12 is a cylindrical body 1a of the chimney 1.
Magnetizing devices 24 are provided on the upper and lower peripheral frames 21a and 21b and the side frame 21c of the split cover body 21 as a close contact fixing means. As shown in FIGS. 3 to 5, in this magnetizing device 24, a magnet base 25 having a connecting portion 25a made of a flexible material is attached to the upper and lower peripheral frames 21a, 21b and side frames 21c. Grounding magnets 27, in which N poles and S poles are alternately arranged facing the openings, are arranged in storage recesses 26 formed on the inner surface of the base 25 at predetermined intervals in the longitudinal direction. A N-pole and an S-pole are alternately arranged in the portion, and a switching magnet 28 that is movable in the arrangement direction is arranged. The switching magnet 28 is moved to the magnet base 25 to move the switching magnet 28 and the grounding magnet 27. A switching drive device (for example, a solenoid, a cylinder device, a lever mechanism, etc.) 29 is provided which changes the polarity of contact to increase or eliminate the magnetic force of the grounding magnet 27. Therefore, by the switching drive device 29,
The switching magnets 28 and the grounding magnets 27 have the same contacting polarity to increase the magnetic force of the grounding magnets 27, and thus the flexible connecting portion 2
The magnet base 25 can be surely magnetized to the cylindrical body 1a via 5a, and on the contrary, the contact magnetism of the switching magnet 28 and the grounding magnet 27 is made different to erase the magnetic force of the grounding magnet 27, The magnet base 25 can be separated from the barrel 1a.
【0024】なお、全体を電磁石で構成して電源をオン
−オフしてもよく、さらに切換用磁石28のみを電磁石
で構成して極性を変化させることもできる。The entire structure may be constituted by an electromagnet to turn the power supply on and off, and only the switching magnet 28 may be constituted by an electromagnet to change the polarity.
【0025】さらに密着固定手段として、この分割カバ
ー体21に設けた吸入口31に、排気ポンプに接続され
た吸引ホース32が接続され、吸引ホース32に介装さ
れた切換弁(図示せず)を切り換えることにより、分割
カバー体21の内部空間33を負圧として分割カバー体
21全体を筒身1a外面に吸着または離間させることが
できる。また、このように分割カバー体21の内部空間
33を減圧することにより、空気の密度を低下させて音
の伝播を減少させ、筒身1aの振動により発生する騒音
を減衰させることができる。Further, as a close contact fixing means, a suction hose 32 connected to an exhaust pump is connected to a suction port 31 provided in the divided cover body 21, and a switching valve (not shown) interposed in the suction hose 32. By switching between the two, it is possible to suck or separate the entire divided cover body 21 from the outer surface of the tubular body 1a by using the internal space 33 of the divided cover body 21 as a negative pressure. Further, by decompressing the internal space 33 of the divided cover body 21 in this way, it is possible to reduce the density of the air, reduce the propagation of sound, and attenuate the noise generated by the vibration of the barrel 1a.
【0026】なお、上記実施例の騒音抑制手段を遮音シ
ート22と内部空間33の減圧状態としたが、図6に示
すように、分割カバー体21の内部空間33にグラスウ
ール等の吸音材41を充填してもよい。また、図7に示
すように、吸音材41に代えてゴムなどの防振材42を
取り付けておくことにより、衝撃工具の衝撃で振動する
筒身1aの振動を効果的に減衰させ、騒音の発生を未然
に防止することができる。Although the noise suppressing means of the above-described embodiment is in the depressurized state of the sound insulating sheet 22 and the internal space 33, as shown in FIG. 6, a sound absorbing material 41 such as glass wool is provided in the internal space 33 of the divided cover body 21. It may be filled. Further, as shown in FIG. 7, by attaching a vibration absorbing material 42 such as rubber in place of the sound absorbing material 41, the vibration of the barrel 1a vibrated by the impact of the impact tool is effectively damped, and the noise of the noise is reduced. Occurrence can be prevented in advance.
【0027】さらに、遮音シート22に代えて、図8に
示すように、下部が外周側に傾斜する鎧戸状に傾斜する
音圧変向板43を多数設けることにより、筒身1aの振
動により発生する伝播方向を、筒身1aに対して傾斜す
る音圧変向板43により上方に変化させて、直接波が下
方に向けて放射されるのを防ぎ、近隣の工場内や住宅地
に直接波や反射波による騒音の到達を効果的に減少させ
て、近隣の工場内や住宅への直接波の影響を大幅に軽減
して騒音公害を少なくすることができる。さらに送風ポ
ンプに接続された加圧ホース44により吹込口45を介
して内部空間46に高圧の空気を吹き込み、騒音の伝播
経路となる内部空間46を大気圧より高圧にして外部に
対する空気密度を変化させて周波数変動と音圧減衰を図
ることができる。Further, instead of the sound insulating sheet 22, as shown in FIG. 8, by providing a large number of sound pressure deflecting plates 43 which are inclined like an armored door whose lower portion is inclined toward the outer peripheral side, the vibration is generated by the vibration of the barrel 1a. The direction of propagation is changed upward by the sound pressure deflecting plate 43 that is inclined with respect to the tubular body 1a to prevent direct waves from being radiated downward, and direct waves are transmitted to nearby factories and residential areas. It is possible to effectively reduce the arrival of noise due to reflected waves and reflected waves, significantly reduce the influence of direct waves on the neighboring factories and houses, and reduce noise pollution. Further, high-pressure air is blown into the internal space 46 via the blow-in port 45 by the pressure hose 44 connected to the blower pump, and the internal space 46 serving as a noise propagation path is made higher than atmospheric pressure to change the air density to the outside. As a result, frequency fluctuation and sound pressure attenuation can be achieved.
【0028】図9および図10は遮音カバーの密着固定
手段の他の実施例を示す。この分割カバー体21は、隣
接する側枠21cの上端部間および下端部間に分割カバ
ー体21を互いに連結して周方向に接近離間させ筒身1
aを締め付けるねじ式カバー体連結固定装置51が設け
られている。このねじ式カバー体連結固定装置51は、
側枠21cに取り付けたブラケット52Aの一方に、出
力軸に接線方向の駆動ねじ53が取り付けられた固定用
モーター54を設けるとともに、ブラケット52Bの他
方に駆動ねじ53が螺合する雌ねじ部材55を設けて構
成されている。また、前記ブラケット52A,52Bを
ワイヤロープ11で吊り下げる吊下部材56はヒンジま
たは可撓性部材57を介して連結されて、ブラケット5
2A,52Bの接近離間動作に対応することができる。FIGS. 9 and 10 show another embodiment of the contact fixing means of the sound insulation cover. This split cover body 21 connects the split cover bodies 21 to each other between the upper end portions and the lower end portions of the adjacent side frames 21c so as to move toward and away from each other in the circumferential direction.
A screw type cover body connecting and fixing device 51 for tightening a is provided. This screw type cover body connecting and fixing device 51 is
A fixing motor 54 having a tangential drive screw 53 attached to the output shaft is provided on one side of the bracket 52A attached to the side frame 21c, and a female screw member 55 with which the drive screw 53 is screwed is provided on the other side of the bracket 52B. Is configured. In addition, the hanging member 56 that suspends the brackets 52A and 52B with the wire rope 11 is connected via a hinge or a flexible member 57, and the bracket 5
It is possible to handle the approaching / separating operations of 2A and 52B.
【0029】なお、このねじ式カバー体連結固定装置5
1に代えて、空気圧式や油圧式のシリンダー装置や、滑
車とロープを使用した巻取り機構により構成することが
できる。Incidentally, this screw type cover body connecting and fixing device 5
In place of 1, a pneumatic or hydraulic cylinder device or a winding mechanism using a pulley and a rope can be used.
【0030】上記設備における煙突1のライニング層1
aの剥離除去作業を説明する。破砕装置用ウインチ4を
駆動して所定位置にゴンドラを停止すると、遮音カバー
位置制御装置14により防音装置用ウインチ13が起動
されて遮音カバー12をゴンドラ3の停止位置外周部に
停止させる。そして、切換用駆動装置29により着磁装
置24が作動されるとともに、吸引ホース32により内
部空間33が負圧にされることにより、分割カバー体2
1がそれぞれ筒身1a外面に密着固定される。Lining layer 1 of chimney 1 in the above equipment
The peeling removal work of a will be described. When the winch 4 for the crushing device is driven to stop the gondola at a predetermined position, the sound insulation cover position control device 14 activates the sound insulation device winch 13 to stop the sound insulation cover 12 at the outer periphery of the stop position of the gondola 3. Then, the switching drive device 29 operates the magnetizing device 24, and the suction hose 32 causes the internal space 33 to have a negative pressure.
1 is closely fixed to the outer surface of the barrel 1a.
【0031】次いでライニング層破砕装置5により衝撃
工具をライニング層1aに当て付けて衝撃と振動とを加
えることにより、ライニング層1aを破砕し、筒身1b
から離間させて落下除去させる。この時、筒身1Aを振
動させることにより生じる騒音は、分かつカバー体21
に設けた遮音シート22により一旦遮断されて外部に放
散されるので、効果的に減衰される。Next, an impact tool is applied to the lining layer 1a by the lining layer crushing device 5 to apply impact and vibration to crush the lining layer 1a, and the barrel 1b.
It is separated from and dropped. At this time, noise generated by vibrating the barrel 1A is separated and separated by the cover body 21.
Since the sound insulation sheet 22 provided on the first side cuts off the sound once and dissipates it to the outside, it is effectively attenuated.
【0032】したがって、上記構成によれば、遮音カバ
ー位置制御装置14により、昇降移動するライニング層
1bの剥離作業位置に対応して遮音カバー12を昇降移
動させ、筒身1aの外周部分を遮音カバー12で覆った
ので、剥離作業で筒身1aを介して放射される騒音を効
果的に減衰させることができる。Therefore, according to the above construction, the sound insulation cover position control device 14 moves the sound insulation cover 12 up and down in correspondence with the peeling work position of the vertically moving lining layer 1b, and the outer peripheral portion of the barrel 1a is covered by the sound insulation cover. Since it is covered with 12, the noise radiated through the barrel 1a during the peeling work can be effectively attenuated.
【0033】[0033]
【発明の効果】以上に述べたごとく本発明の煙突ライニ
ング層解体用防音装置によれば、遮音カバー位置制御装
置により、遮音カバーを作業位置に対応して昇降させ、
最大の騒音発生源となる剥離作業位置の筒身の外周部を
覆うので、効果的に騒音を減少させることができ、煙突
全体を覆うのに比べて設置作業も短時間ですみ、低コス
トで効果的な遮音を行うことができる。As described above, according to the soundproofing device for dismantling the chimney lining layer of the present invention, the soundproofing cover position control device raises and lowers the soundproofing cover according to the working position.
Since it covers the outer circumference of the cylinder at the peeling work position, which is the largest noise source, it can effectively reduce noise, and the installation work can be done in a short time compared to covering the entire chimney, and at low cost. Effective sound insulation can be performed.
【0034】また遮音カバーを複数の分割カバー体によ
り構成したので、高い煙突でも組立が容易で、さらに幾
分テーパー状の煙突にも対応することができるととも
に、煙突の突起物を回避して取り付けることができる。
また密着固定手段により、分割カバーをそれぞれ筒身に
密着させるので、遮音効果をより向上させることができ
る。Further, since the sound insulation cover is composed of a plurality of divided cover bodies, it is easy to assemble even a high chimney, and it is possible to cope with a somewhat tapered chimney, and the chimney projection is avoided and mounted. be able to.
Moreover, since the divided covers are brought into close contact with the barrels by the close contact fixing means, the sound insulation effect can be further improved.
【0035】さらに分割カバー体内に吸音材を設けるこ
とにより、筒身から発生する音のエネルギーを吸収して
より効果的に騒音を減少させることができる。さらにま
た分割カバー体内に設けた防振材を筒身に密着させるこ
とにより、ライニング層剥離時に筒身に生じる振動を効
果的に減衰して騒音の発生を防止し、騒音の発生を効果
的に抑制することができる。Further, by providing the sound absorbing material in the divided cover body, it is possible to absorb the energy of the sound generated from the barrel and reduce the noise more effectively. Furthermore, by vibrating the anti-vibration material provided inside the split cover body closely to the barrel, the vibration generated in the barrel when the lining layer is peeled off is effectively dampened and the noise is prevented, and the noise is effectively generated. Can be suppressed.
【0036】また、筒身に対して上方に向いて傾斜する
音圧変向板により、筒身から発生した騒音を上方に向け
て放散させるので、直接波が下方に向けて放射されるの
を防ぎ、近隣の工場内や住宅地への直接波や反射波によ
る騒音を効果的に減少させることができる。Further, since the sound pressure deflecting plate inclined upward with respect to the barrel dissipates the noise generated from the barrel upward, direct waves are radiated downward. It is possible to prevent and effectively reduce the noise caused by direct waves and reflected waves in the neighboring factories and residential areas.
【0037】さらに、カバー体連結固定装置により、分
割カバー体を互いに周方向に接近して筒身を締め付け固
定するので、昇降移動時には遮音カバーを一体として取
り扱うことができ、分割カバー体を個々に操作するのに
比べて昇降移動や位置決めが容易に行える。またテーパ
ー状の煙突や途中に異径部が形成された煙突にも対応す
ることができる。Further, since the cover body connecting and fixing device closes the divided cover bodies to each other in the circumferential direction to fasten and fix the cylinder body, the sound insulating cover can be handled as one body when moving up and down, and the divided cover bodies can be individually handled. Elevating movement and positioning can be done easily compared to operating. Further, it is possible to deal with a tapered chimney or a chimney having a different diameter portion formed on the way.
【0038】さらにまた、磁石により分割カバー体を筒
身に固定するので、分割カバー体と筒身との密着度を向
上させることができ、騒音の遮音をより効果的に行うこ
とができる。分離も電磁石や極特性を利用した切換手段
により容易に行うことができる。Furthermore, since the split cover body is fixed to the barrel by the magnet, the degree of contact between the split cover body and the barrel can be improved, and noise can be effectively insulated. Separation can also be easily performed by a switching means utilizing electromagnets or polar characteristics.
【0039】また、筒身に臨む内部空間の面積を大きく
することにより、大きい吸着力が得られるとともに、密
度の薄い内部空間の空気により音の伝播率を低下させて
音圧の減衰を増大させることができる。Further, by increasing the area of the internal space facing the barrel, a large suction force can be obtained, and at the same time, the air in the internal space having a low density lowers the sound propagation rate to increase the sound pressure attenuation. be able to.
【図1】本発明に係る煙突ライニング層解体用防音装置
を備えたライニング層破砕設備を示す全体断面図であ
る。FIG. 1 is an overall sectional view showing a lining layer crushing equipment equipped with a soundproofing device for dismantling a chimney lining layer according to the present invention.
【図2】同煙突ライニング層解体用防音装置の遮音カバ
ーを示す一部切欠き斜視図である。FIG. 2 is a partially cutaway perspective view showing a sound insulation cover of the sound insulation device for disassembling the chimney lining layer.
【図3】同分割カバー体の部分断面図である。FIG. 3 is a partial cross-sectional view of the same divided cover body.
【図4】同分割カバー体の部分平面図である。FIG. 4 is a partial plan view of the same divided cover body.
【図5】同分割カバー体の着磁装置を示す断面図であ
る。FIG. 5 is a cross-sectional view showing a magnetizing device for the divided cover body.
【図6】同分割カバー体に設けた騒音抑制手段の他の実
施例を示す部分断面図である。FIG. 6 is a partial cross-sectional view showing another embodiment of noise suppressing means provided on the same divided cover body.
【図7】同分割カバー体に設けた騒音抑制手段のさらに
他の実施例を示す部分断面図である。FIG. 7 is a partial cross-sectional view showing still another embodiment of the noise suppressing means provided in the same divided cover body.
【図8】同分割カバー体に設けた騒音抑制手段のさらに
他の実施例を示す部分断面図である。FIG. 8 is a partial cross-sectional view showing still another embodiment of the noise suppressing means provided on the same divided cover body.
【図9】同分割カバー体に設けた密着固定手段の他の実
施例を示す一部切欠き斜視図である。FIG. 9 is a partially cutaway perspective view showing another embodiment of the contact fixing means provided in the same divided cover body.
【図10】同密着固定手段の平面図である。FIG. 10 is a plan view of the close contact fixing means.
1 煙突 1a 筒身 1b ライニング層 2 ワイヤロープ 3 ゴンドラ 4 破砕装置用ウインチ 5 ライニング層破砕装置 11 ワイヤロープ 12 遮音カバー 13 防音装置用ウインチ 14 遮音カバー位置制御装置 21 分割カバー体 22 遮音シート 24 着磁装置 27 接地用磁石 28 切換用磁石 29 切換用駆動装置 32 吸引ホース 33 内部空間 41 吸音材 42 防振材 43 音圧変向板 44 加圧ホース 46 内部空間 51 ねじ式カバー体連結固定装置 53 駆動ねじ軸 54 固定用モーター 1 Chimney 1a Cylindrical 1b Lining layer 2 Wire rope 3 Gondola 4 Winch for crushing device 5 Lining layer crushing device 11 Wire rope 12 Sound insulation cover 13 Winch for soundproofing device 14 Sound insulation cover position control device 21 Split cover body 22 Sound insulation sheet 24 Magnetization Device 27 Grounding magnet 28 Switching magnet 29 Switching drive device 32 Suction hose 33 Internal space 41 Sound absorbing material 42 Anti-vibration material 43 Sound pressure deflecting plate 44 Pressure hose 46 Internal space 51 Screw type cover body connecting and fixing device 53 Drive Screw shaft 54 fixing motor
───────────────────────────────────────────────────── フロントページの続き (72)発明者 片山 完 大阪府大阪市此花区桜島1丁目4番6号 日立造船エンジニアリング株式会社内 (72)発明者 青山 弘 大阪府大阪市此花区桜島1丁目4番6号 日立造船エンジニアリング株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Katayama 1-4-6 Sakurajima, Konohana-ku, Osaka City, Osaka Prefecture Hitachi Shipbuilding Engineering Co., Ltd. (72) Inventor Hiroshi Aoyama 1-4-4, Sakurajima, Osaka City, Osaka City No. 6 within Hitachi Zosen Engineering Co., Ltd.
Claims (8)
音カバーを昇降駆動装置により昇降自在に配置し、前記
昇降駆動装置を操作して煙突内のライニング層の解体作
業を行うライニング層除去作業位置の外周部に遮音カバ
ーを昇降移動させる遮音カバー位置制御装置を設けたこ
とを特徴とする煙突ライニング層解体用防音装置。1. A lining layer for disassembling a lining layer in a chimney by arranging a sound-insulating cover having noise suppressing means and fitted on a chimney so as to be vertically movable by an elevation drive device. A soundproofing device for dismantling a chimney lining layer, which is provided with a soundproofing cover position control device for moving the soundproofing cover up and down on the outer periphery of the removal work position.
割カバー体で構成し、これら分割カバー体をそれぞれ煙
突筒身に密着させる密着固定手段を設けた請求項1記載
の煙突ライニング層解体用防音装置。2. A chimney lining layer disassembling apparatus according to claim 1, wherein the sound insulation cover is composed of a plurality of divided cover bodies which are divided in a circumferential direction, and each of the divided cover bodies is provided with an adhesion fixing means for closely adhering to the chimney cylinder body. Soundproofing device.
された吸音材により構成した請求項2記載の煙突ライニ
ング層解体用防音装置。3. The soundproofing device for dismantling a chimney lining layer according to claim 2, wherein the noise suppressing means is constituted by a sound absorbing material mounted in the divided cover body.
付けられて煙突筒身に密着され煙突筒身の振動を減衰さ
せる防振材により構成した請求項2記載の煙突ライニン
グ層解体用防音装置。4. The soundproofing device for dismantling a chimney lining layer according to claim 2, wherein the noise suppressing means is constituted by a vibration-damping material that is attached to the inside of the sound-insulating cover body and that is in close contact with the chimney-barrel and damps vibration of the chimney-barrel.
取り付けられて下部が外側に傾斜し煙突筒身から伝達さ
れる音を上方に拡散放出する複数の音圧変向板で構成し
た請求項2記載の煙突ライニング層解体用防音装置。5. The noise suppressing means comprises a plurality of sound pressure deflecting plates, which are attached to the outer surface of the split cover body, have a lower portion inclined outward and diffuse and emit upward the sound transmitted from the chimney barrel. Item 2. A soundproofing device for dismantling a chimney lining layer according to item 2.
連結して周方向に接近離間可能なカバー体連結固定装置
により構成した請求項2記載の煙突ライニング層解体用
防音装置。6. The soundproofing device for disassembling a chimney lining layer according to claim 2, wherein the close contact fixing means is constituted by a cover body connecting and fixing device capable of approaching and separating in the circumferential direction by connecting the divided cover bodies to each other.
れて煙突筒身に吸着する磁石により構成した請求項2記
載の煙突ライニング層解体用防音装置。7. The soundproofing device for dismantling a chimney lining layer according to claim 2, wherein the close contact fixing means is constituted by a magnet attached to the cover body and attracted to the chimney tube body.
空間を形成する分割カバー体と、この分割カバー体に接
続され内部空間を負圧にして分割カバー体を煙突筒身に
吸着可能な吸引ホースとで構成したことを特徴とする請
求項2記載の煙突ライニング層解体用防音装置。8. The close-contact fixing means is internally provided between the chimney barrel body.
The divided cover body that forms the space and the divided cover body
It is continued and the internal space is made negative pressure and the split cover body is made into a chimney barrel.
3. A soundproofing device for dismantling a chimney lining layer according to claim 2, wherein the soundproofing device comprises a suction hose capable of adsorbing .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5112525A JP2501527B2 (en) | 1993-05-14 | 1993-05-14 | Soundproofing device for dismantling the chimney lining layer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5112525A JP2501527B2 (en) | 1993-05-14 | 1993-05-14 | Soundproofing device for dismantling the chimney lining layer |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH06323002A JPH06323002A (en) | 1994-11-22 |
JP2501527B2 true JP2501527B2 (en) | 1996-05-29 |
Family
ID=14588832
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5112525A Expired - Lifetime JP2501527B2 (en) | 1993-05-14 | 1993-05-14 | Soundproofing device for dismantling the chimney lining layer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2501527B2 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6752063B2 (en) * | 2016-06-22 | 2020-09-09 | ケミカルグラウト株式会社 | Attached freezing tube and its mounting method |
JP7233206B2 (en) * | 2018-11-30 | 2023-03-06 | 株式会社安藤・間 | Sound insulation method using magnetic adsorption sound insulation sheet |
CN111271097A (en) * | 2020-03-30 | 2020-06-12 | 中铁二院工程集团有限责任公司 | Construction joint waterproof structure suitable for reconstructing tunnel lining and construction method thereof |
CN116168671B (en) * | 2023-04-23 | 2023-12-05 | 苏州宏超自动化设备有限公司 | Integrated sound-proof cover |
-
1993
- 1993-05-14 JP JP5112525A patent/JP2501527B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH06323002A (en) | 1994-11-22 |
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