JP4088614B2 - Sludge recovery equipment - Google Patents

Sludge recovery equipment Download PDF

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JP4088614B2
JP4088614B2 JP2004225841A JP2004225841A JP4088614B2 JP 4088614 B2 JP4088614 B2 JP 4088614B2 JP 2004225841 A JP2004225841 A JP 2004225841A JP 2004225841 A JP2004225841 A JP 2004225841A JP 4088614 B2 JP4088614 B2 JP 4088614B2
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support mechanism
sludge
return path
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文彦 間
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間機設工業株式会社
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この発明は、下水処理施設や汚泥処理施設などにおいて、沈殿池の池底に堆積した汚泥を一方向へ掻き寄せて回収する汚泥回収装置に関する。   The present invention relates to a sludge recovery device that collects sludge accumulated in the bottom of a sedimentation basin in one direction in a sewage treatment facility or sludge treatment facility.

例えば、下水処理施設では、下水から固形物などが除去された後、汚泥を含む処理前の水が沈殿池に導入される。沈殿池の池底には沈降した汚泥が堆積し、また、腐敗に伴うガスなどを含む汚泥はスカムとなって浮上して水面付近に浮遊する。池底の汚泥は掻き寄せ板を池底に沿って移動させることによって、また、水面に浮遊するスカムはスカムブレードを水面に沿って移動させることによって、それぞれ掻き寄せられて回収される。   For example, in a sewage treatment facility, solids and the like are removed from sewage, and then water before treatment including sludge is introduced into a settling basin. The settled sludge accumulates on the bottom of the sedimentation basin, and the sludge containing gas and the like accompanying rot rises as scum and floats near the water surface. The sludge on the pond bottom is scraped and collected by moving the scraping plate along the pond bottom, and the scum floating on the water surface is scraped and collected by moving the scum blade along the water surface.

図8は、従来の汚泥回収装置の一例を示している。
図示例の汚泥回収装置は、複数の掻寄せ板100を一定間隔毎に左右のチェン101,101間に取り付けたものである。各チェン101は沈殿池aの内部に配置された駆動ホイール103や従動ホイール104に掛け渡されており、前記駆動ホイール103を駆動機構102により駆動して各チェン101を走行させることにより、各掻き寄せ板100が池底bに沿って移行し、汚泥Aが掻き寄せられてピットcに回収される。各掻き寄せ板100はチェン101とともに周回するので、汚泥Aの掻寄せを継続して行うことができる(例えば、特許文献1参照)。
FIG. 8 shows an example of a conventional sludge recovery apparatus.
In the illustrated sludge recovery apparatus, a plurality of scraping plates 100 are attached between the left and right chains 101, 101 at regular intervals. Each chain 101 is stretched over a driving wheel 103 and a driven wheel 104 disposed inside the settling basin a, and each chain 101 is caused to travel by driving the driving wheel 103 by a driving mechanism 102. The gathering plate 100 moves along the pond bottom b, and the sludge A is scraped and collected in the pit c. Since each scraping plate 100 circulates together with the chain 101, the sludge A can be scraped continuously (for example, refer to Patent Document 1).

特開2002−31214号公報(図4)Japanese Patent Laid-Open No. 2002-3214 (FIG. 4)

図9は、従来の汚泥回収装置の他の例を示している。図示例の汚泥回収装置では、池底b近くの両側位置にレール110,110が長さ方向に敷設され、各レール110上を跨るように配置された台車111をレール110に沿って往復動させることにより台車111に吊持された掻き寄せ板112を池底bに沿って移行させるものである。なお、図中、113は台車111に接続されたロープであり、このロープ113を駆動機構114によって正逆各方向へ引っ張ることで台車111を往復動させている。   FIG. 9 shows another example of a conventional sludge recovery apparatus. In the sludge recovery apparatus of the illustrated example, rails 110 and 110 are laid in the length direction at both side positions near the pond bottom b, and a carriage 111 arranged so as to straddle each rail 110 is reciprocated along the rail 110. Thus, the scraping plate 112 suspended on the carriage 111 is moved along the pond bottom b. In the figure, reference numeral 113 denotes a rope connected to the carriage 111, and the carriage 111 is reciprocated by pulling the rope 113 in forward and reverse directions by the drive mechanism 114.

しかしながら、いずれの汚泥回収装置も、チェン101やロープ113が沈殿池aの内部全域に設けられるため、駆動系が大掛かりとなる。また、チェン101やロープ113などの駆動系を構成する機構が水に浸かるうえ、水中で機構同士が接触したり摺動したりするので、腐食し易く、保守・管理に手数を要する。さらに図9の従来例については、台車111の往復動や掻き寄せ板112の上下動に必要なセンサも水中に設けられるため、腐食によってセンサが故障し易い。水中にある機構やセンサに故障や不具合が生じると、点検や修理のために沈殿池の水を抜き取る必要があり、作業に手数がかかるという問題がある。   However, in any of the sludge recovery apparatuses, the chain 101 and the rope 113 are provided throughout the interior of the settling basin a, so that the drive system becomes large. In addition, the mechanisms constituting the drive system such as the chain 101 and the rope 113 are immersed in water, and the mechanisms come into contact with each other and slide in the water, so that they are easily corroded and require maintenance and management. Further, in the conventional example of FIG. 9, since the sensor necessary for the reciprocating movement of the carriage 111 and the vertical movement of the scraping plate 112 is also provided in the water, the sensor is likely to break down due to corrosion. If a mechanism or sensor in the water breaks down or malfunctions, it is necessary to remove the water from the settling basin for inspection or repair, which is troublesome.

この発明は、上記した問題に着目してなされたもので、駆動系が大掛かりとならず、駆動系を構成する機構を水中に浸からせずかつ水中で機構同士を接触や摺動をさせないようにして、保守や管理、さらには点検や修理に手数を要さない汚泥回収装置を提供することを目的とする。   The present invention has been made by paying attention to the above-described problems, so that the drive system does not become large, the mechanism constituting the drive system is not submerged in water, and the mechanisms are not contacted or slid in water. Thus, an object of the present invention is to provide a sludge recovery device that does not require labor for maintenance and management, as well as inspection and repair.

この発明による汚泥回収装置は、沈殿池の池底に堆積した汚泥を一方向へ掻き寄せて回収するものであり、前記池底の幅に対応させた掻き寄せ板と、沈殿池の上方に設けられ前記掻き寄せ板を沈殿池の一方の端部から他方の端部まで池底に沿って移動させる移動機構とから成る。前記移動機構は、沈殿池の幅に相当する全長を有し前記掻き寄せ板を上方より吊持する吊下棒が両端部に一体に設けられた管状をなすフレームと、このフレームの両端部を移動可能に支持する支持機構部と、前記フレームを沈殿池の一方の端部から他方の端部まで移動させる往路に対し前記往路と反対方向へフレームを移動させて一方の端部に戻す復路が高位置となる周回軌道に沿ってフレームを移動させる駆動機構部とを含んでいる。前記支持機構部は、前記往路においてフレームを支持する第1の支持機構と、前記復路においてフレームを支持する第2の支持機構と、往路から復路への移行路および復路から往路への移行路においてフレームを支持する第3の支持機構とから成る。第1の支持機構は、フレームの両端部にそれぞれ取り付けられフレームの前方へ突き出る部分の前端とフレームの後方へ突き出る部分の後端にそれぞれ第1のローラが回動自由に設けられた左右一対のアームと、沈殿池の両側に設けられ前記往路において前記左右のアームの各第1のローラを転動自由に支持するとともに、各アームとの間でフレームの姿勢を保持して掻き寄せ板が傾くのを規制する機構を構成する両側のガイドレールとで構成され、第2の支持機構は、両端部がフレームの両端より突出するように軸受を介してフレームの内部に支持された駆動軸の両端部にそれぞれ回動自由に支持される第2のローラと、前記復路において前記の各第1のローラを両側のガイドレールの上方位置に宙吊り状態にして前記の各第2のローラを上面で転動自由に支持する両側のガイド部材とで構成され、第3の支持機構は、前記の各第2のローラと、前記ガイド部材の周囲を囲むように設けられ往路から復路への移行路および復路から往路への移行路において前記の各第2のローラを支持しつつ移動させる両側のガイド板とで構成されているThe sludge recovery device according to the present invention collects sludge accumulated on the bottom of a sedimentation basin in one direction, and is provided above a sedimentation basin corresponding to the width of the pond bottom and the sedimentation basin. And a moving mechanism for moving the scraping plate along the pond bottom from one end of the settling basin to the other end. The moving mechanism has a tubular frame having a total length corresponding to the width of the settling basin, and a suspension rod that suspends the scraping plate from above, and is formed integrally at both ends, and both ends of the frame. a support mechanism for movably supporting, backward to return the frame to one one end by moving the frame to the forward and opposite directions with respect to the forward moving from the end to the other end of the settling tank And a drive mechanism unit that moves the frame along a circular orbit at a high position. The support mechanism includes: a first support mechanism that supports the frame in the forward path; a second support mechanism that supports the frame in the return path; and a transition path from the forward path to the return path and a transition path from the return path to the forward path. And a third support mechanism for supporting the frame. The first support mechanism is a pair of left and right arms, each of which is attached to both ends of the frame and has a first roller rotatably provided at a front end of a portion protruding forward of the frame and a rear end of a portion protruding rearward of the frame. The arm is provided on both sides of the sedimentation basin and supports the first rollers of the left and right arms in the forward path so as to freely roll, and the scraping plate is tilted while maintaining the posture of the frame between the arms. The second support mechanism has both ends of the drive shaft supported inside the frame via bearings so that both ends protrude from both ends of the frame. A second roller that is rotatably supported by each part, and each second roller that is suspended above the guide rails on both sides in the return path. The third support mechanism is configured to surround each of the second rollers and the periphery of the guide member, and is shifted from the forward path to the return path. It is comprised with the guide plate of the both sides which move while supporting each said 2nd roller in the transition path from a path | route and a return path | route .

この発明の上記した構成において、「掻き寄せ板」は一枚の薄板材をもって構成してもよく、複数枚の薄板材を組み合わせて構成してもよい。要するに、沈殿池の全幅に対応させて池底全域の汚泥を掻き取ることができれば、その構成態様は問わない。なお、掻き寄せ板は、池底に接触しないようにして摩耗が生じさせないようにするのが望ましい。   In the above-described configuration of the present invention, the “scraping plate” may be configured by a single thin plate material, or may be configured by combining a plurality of thin plate materials. In short, as long as the sludge in the entire pond bottom can be scraped off corresponding to the entire width of the settling basin, the configuration is not limited. It is desirable that the scraper plate does not contact the pond bottom so as not to cause wear.

上記した汚泥回収装置において、往路では掻き寄せ板は沈殿池の一方の端部から他方の端部まで池底近くを移動して池底に堆積した汚泥を一方向へ掻き寄せる。この場合、前記アームとガイドレールとでフレームの姿勢を保持する機構が構成されるので、掻き寄せ板は移動時の汚泥などの抵抗を受けても傾くことがなく、池底の掻き寄せ作業に支障をきたすことがない。復路は往路に対して高位置にあるので、復路では掻き寄せ板は上方へ持ち上げられて池底から離れ、池底の汚泥をかき混ぜることなく水中を移動し、沈殿池の一端部に戻る。 In the sludge collecting apparatus described above, in the forward path, the scraping plate moves near the pond bottom from one end of the sedimentation basin to the other end and scrapes the sludge accumulated on the pond bottom in one direction. In this case, since the arm and the guide rail constitute a mechanism for maintaining the posture of the frame, the scraping plate does not tilt even if it receives resistance such as sludge during movement, and is used for scraping the pond bottom. There will be no hindrance. Since the return path is at a higher position than the forward path, the scraping plate is lifted upward from the pond bottom, moves away from the pond bottom, moves in the water without stirring the pond bottom sludge, and returns to one end of the settling basin.

前記駆動機構部は、種々の態様のものが考えられるが、その一は、沈殿池の両側に沈殿池の全長にわたり敷設される左右一対のピンラックと、前記駆動軸の両端部に各ピンラックと噛み合うように装着された左右一対のピニオンと、前記駆動軸を一方向へ回転させてピンラックを周回する周回軌道に沿って各ピニオンを移動させる駆動装置とを含んだものである。
この実施態様によると、ピニオンがピンラックの下面と噛み合ってフレームを一体移動させるとき、掻き寄せ板は沈殿池の一方の端部から他方の端部まで池底近くを移動し、池底に堆積した汚泥を掻き寄せる。ピニオンがピンラックの上面と噛み合ってフレームを一体移動させるとき、掻き寄せ板は池底より持ち上げられた状態で水中を移動し、沈殿池の一端部に戻る。
The drive mechanism may be in various forms, one of which is a pair of left and right pin racks laid on both sides of the settling basin over the entire length of the settling basin, and the respective pin racks at both ends of the drive shaft. A pair of left and right pinions mounted in this manner, and a drive device that moves each pinion along a circular orbit around the pin rack by rotating the drive shaft in one direction.
According to this embodiment, when the pinion meshes with the lower surface of the pin rack and moves the frame integrally, the scraper plate moves near the pond bottom from one end of the settling basin to the other end and is deposited on the pond bottom. Raise the sludge. When the pinion meshes with the upper surface of the pin rack and moves the frame integrally, the scraping plate moves in the water while being lifted from the bottom of the pond, and returns to one end of the settling basin.

この発明によると、駆動機構部は沈殿池の上方に設けられるので、駆動系が大掛かりとなることがない。また、駆動系を構成する機構は水に浸からず、水中での機構同士の接触や摺動がないので、腐食が問題とならず、保守・管理に手数を要さない。さらに、駆動機構部に故障や不具合が発生しても、水面の上方で対処でき、沈殿池の水抜きを行う必要がないため、点検や修理に手数がかからない。   According to the present invention, since the drive mechanism is provided above the settling basin, the drive system does not become large. Further, since the mechanism constituting the drive system is not immersed in water, and there is no contact or sliding between the mechanisms in the water, corrosion does not become a problem and maintenance and management are not required. Furthermore, even if a failure or malfunction occurs in the drive mechanism, it can be handled above the surface of the water and there is no need to drain the settling basin.

図1および図2は、この発明の一実施例である汚泥回収装置の構成を示している。
同図において、1は汚泥を含む水が導入される沈殿池であり、池底10の端部に汚泥回収用のピット11が形成されている。同図中、Aは池底10に堆積した汚泥、Bは水面に浮遊するスカムである。池底10は水平かつフラットに形成されており、池底10の両側縁は傾斜面12になっている。汚泥Aは掻き寄せ板2により沈殿池1の一方の端部(同図では右端部)Pから他方の端部(同図では左端部)Qまで掻き寄せられて前記ピット11に回収される。ピット11に溜まった汚泥Aは吸込管14により沈殿池1の外部へ排出される。スカムBはスカムブレード9により汚泥Aと反対方向に掻き寄せられて端部Pに位置するスカム用のピット13に回収される。前記スカムブレード9は後述する吊下棒26の水面近くの高さ位置に取り付けてある。前記ピット13は開口部が水面近くに位置させてある。
1 and 2 show a configuration of a sludge recovery apparatus according to an embodiment of the present invention.
In the figure, reference numeral 1 denotes a sedimentation basin into which water containing sludge is introduced, and a pit 11 for sludge recovery is formed at the end of the pond bottom 10. In the figure, A is sludge accumulated on the pond bottom 10 and B is scum floating on the water surface. The pond bottom 10 is formed to be horizontal and flat, and both side edges of the pond bottom 10 are inclined surfaces 12. The sludge A is scraped by the scraping plate 2 from one end portion (right end portion in the figure) P to the other end portion (left end portion in the figure) Q and collected in the pit 11. The sludge A collected in the pit 11 is discharged to the outside of the sedimentation tank 1 through the suction pipe 14. The scum B is scraped in the direction opposite to the sludge A by the scum blade 9 and is collected in the scum pit 13 located at the end P. The scum blade 9 is attached at a height position near the water surface of a hanging rod 26 described later. The pit 13 has an opening located near the water surface.

図示例の汚泥回収装置は、前記した掻き寄せ板2と、掻き寄せ板2を沈殿池1の一方の端部Pから他方の端部Qまで池底10の近くを池底10に沿って移動させる移動機構3とから成る。この移動機構3を構成するフレーム4、支持機構部5、および駆動機構部6は沈殿池1の上方に設けられている。なお、図中、8は駆動機構部6のモータ65(後述する。)に電源を供給するためのケーブルであって電源装置に接続されている。
この実施例の掻き寄せ板2は、水平基板20の下面に3枚の薄板材21〜23が垂直に等間隔で取り付けられて成る。各薄板材21〜23は池底10の幅と一致する長さを有し、下端部は池底10の形状に対応した形状に形成されている。
The sludge collecting apparatus in the illustrated example moves the scraping plate 2 and the scraping plate 2 from the one end P to the other end Q of the settling basin 10 near the pond bottom 10 along the pond bottom 10. And a moving mechanism 3 to be moved. The frame 4, the support mechanism unit 5, and the drive mechanism unit 6 constituting the moving mechanism 3 are provided above the sedimentation basin 1. In the figure, reference numeral 8 denotes a cable for supplying power to a motor 65 (described later) of the drive mechanism 6 and is connected to a power supply device.
The scraping plate 2 of this embodiment is formed by attaching three thin plate members 21 to 23 vertically to the lower surface of the horizontal substrate 20 at equal intervals. Each of the thin plate members 21 to 23 has a length that matches the width of the pond bottom 10, and the lower end portion is formed in a shape corresponding to the shape of the pond bottom 10.

なお、掻き寄せ板2は必ずしも複数枚の薄板材をもって構成する必要はなく、1枚の薄板材をもって構成してもよい。また、図3に示すように、池底10が複数の領域u,v,wに区分されている場合は、水平基板20の下面に領域毎の薄板材24u,24v,24wを横一列に吊持して掻き寄せ板2を構成してもよい。   The scraping plate 2 is not necessarily configured with a plurality of thin plate materials, and may be configured with a single thin plate material. As shown in FIG. 3, when the pond bottom 10 is divided into a plurality of regions u, v, and w, the thin plate members 24u, 24v, and 24w for each region are suspended in a horizontal row on the lower surface of the horizontal substrate 20. The scraping plate 2 may be configured by holding it.

この実施例では、池底10は一端部から他端部にかけて水平面に形成されているが、ピット11の側が低い傾斜面に形成してもよい。このような池底10の場合、ガイドレールを池底10に平行に設置する。他の方法として、図4に示すように、各薄板材21〜23は上端を蝶番25を介して水平基板20に取り付け、池底10の深さに応じて傾くようにすることもできる。   In this embodiment, the pond bottom 10 is formed in a horizontal plane from one end to the other end. However, the pit 11 may be formed on a low inclined surface. In the case of such a pond bottom 10, the guide rail is installed in parallel to the pond bottom 10. As another method, as shown in FIG. 4, the thin plate members 21 to 23 can be attached to the horizontal substrate 20 via hinges 25 and tilted according to the depth of the pond bottom 10.

前記掻き寄せ板2は、管状をなす主フレーム40の両端部に一体に設けられた吊下棒26,26によって上方より吊持されている。主フレーム40の一端には箱状をなす中間フレーム41および管状をなす端フレーム42が連結され、この三者によって前記フレーム4が構成されている。フレーム4の全長は沈殿池1の幅にほぼ一致し、主フレーム40、中間フレーム41、および端フレーム42の中空内部を駆動機構部6の駆動軸60が貫通している。駆動軸60は図示しない軸受を介してフレーム4の内部に支持されており、その結果、フレーム4は駆動軸60に対して回動自由であり、吊下棒40はその荷重によって常に下方に垂下する。   The scraping plate 2 is suspended from above by suspension bars 26 and 26 provided integrally at both ends of a tubular main frame 40. A box-shaped intermediate frame 41 and a tubular end frame 42 are connected to one end of the main frame 40, and the frame 4 is constituted by these three members. The overall length of the frame 4 substantially matches the width of the settling basin 1, and the drive shaft 60 of the drive mechanism 6 passes through the hollow interiors of the main frame 40, the intermediate frame 41, and the end frame 42. The drive shaft 60 is supported inside the frame 4 via a bearing (not shown). As a result, the frame 4 is freely rotatable with respect to the drive shaft 60, and the suspension bar 40 is always suspended downward by the load. To do.

前記フレーム4は、図5および図6に示す支持機構部5および駆動機構部6とともに移動機構3を構成するものである。前記支持機構部5は、前記フレーム4を移動可能に支持するもので、第1〜第3の支持機構5A〜5Cにより構成されている。
第1の支持機構5Aはフレーム4を沈殿池1の一方の端部Pから他方の端部Qまで移動させる往路においてフレーム4を支持するためのもので、フレーム4の両端部にそれぞれ取り付けられ前後端に回動自由なローラ50,50が設けられた左右一対のアーム51と、往路において各アーム51の各ローラ50を転動自由に支持する両側のガイドレール52,52とで構成されている。各ガイドレール52は沈殿池1の両側に設けられ、各ガイドレール52と前記アーム51とでフレーム4の姿勢を保持して掻き寄せ板2が傾くのを規制する機構を構成している。

The frame 4 constitutes the moving mechanism 3 together with the support mechanism portion 5 and the drive mechanism portion 6 shown in FIGS. 5 and 6. The support mechanism portion 5 supports the frame 4 so as to be movable, and includes first to third support mechanisms 5A to 5C.
The first support mechanism 5A is for supporting the frame 4 in the forward path in which the frame 4 is moved from one end P to the other end Q of the settling basin 1, and is attached to both ends of the frame 4 respectively. A pair of left and right arms 51 provided with freely rotatable rollers 50, 50 at the ends, and guide rails 52, 52 on both sides for freely supporting the rollers 50 of the arms 51 in the forward path are configured. . Each guide rail 52 is provided on both sides of the sedimentation basin 1 and constitutes a mechanism that holds the posture of the frame 4 by each guide rail 52 and the arm 51 and restricts the scraping plate 2 from tilting.

第2の支持機構5Bはフレーム4を往路と反対方向へ移動させて一方の端部Pに戻す復路においてフレーム4を支持するためのもので、フレーム4の両端より突出した前記駆動軸60の両端部にそれぞれ軸受を介して回動自由に支持された左右のローラ54と、復路において各ローラ54,54をそれぞれ転動自由に支持するガイド部材55とで構成されている。このガイド部材55は後述するピンラック61のピン62を支持するベース部材を兼ねており、前記した往路ではローラ54はガイド部材55の水平な下面に少し間隙をもって移動し、復路ではローラ54はガイド部材55の水平な上面に支持されて移動する。図5の一点鎖線で示すように、フレーム4は往路に対して復路が高い位置を移動するので、復路の移動時は第1の支持機構5Aにおける前記ローラ50はガイドレール52から離れて宙吊り状態で移動することになる。   The second support mechanism 5B is for supporting the frame 4 in the return path in which the frame 4 is moved in the opposite direction to the forward path and returned to one end P, and both ends of the drive shaft 60 projecting from both ends of the frame 4 are supported. The left and right rollers 54 are rotatably supported by bearings via bearings, and the guide members 55 are configured to freely support the rollers 54 and 54 in the return path. The guide member 55 also serves as a base member for supporting the pins 62 of the pin rack 61, which will be described later. In the forward path, the roller 54 moves with a slight gap to the horizontal lower surface of the guide member 55, and in the return path, the roller 54 is the guide member. It is supported by the horizontal upper surface of 55 and moves. As indicated by the alternate long and short dash line in FIG. 5, the frame 4 moves at a position where the return path is higher than the forward path, so that the roller 50 in the first support mechanism 5 </ b> A is suspended from the guide rail 52 during the return path movement. Will move in.

第3の支持機構5Cはフレーム4が往路から復路へ、または復路から往路へ、それぞれ移行する各移行路においてフレーム4を支持するためのもので、前記ローラ54と、ガイド部材55の周囲を囲むように設けられたガイド板56とで構成されている。このガイド板56は、ガイド部材55の上方に位置する直線部56cとガイド部材55の両端に位置する湾曲部56a,56bとから成り、往路から復路への移行路および復路から往路への移行路ではローラ54はガイド板56の湾曲部56a,56bによって支持されつつ移動する。   The third support mechanism 5C is for supporting the frame 4 in each transition path in which the frame 4 moves from the forward path to the return path or from the return path to the forward path, and surrounds the roller 54 and the guide member 55. It is comprised with the guide plate 56 provided in this way. The guide plate 56 includes a linear portion 56c positioned above the guide member 55 and curved portions 56a and 56b positioned at both ends of the guide member 55, and a transition path from the forward path to the return path and a transition path from the return path to the forward path. Then, the roller 54 moves while being supported by the curved portions 56 a and 56 b of the guide plate 56.

前記駆動機構部6は、フレーム4を沈殿池1の長さ方向に往復動させるもので、沈殿池1の両側に沈殿池1の全長にわたり水平に敷設される左右一対のピンラック61,61と、前記フレーム4の両端部に各ピンラック61と噛み合うように設けられた左右一対のピニオン63とを含むものである。各ピンラック61は複数本のピン62がベース部材を兼ねる前記ガイド部材55に一定間隔で一列に配列されたもので、ピンラック61の上方および下方よりピニオン63が噛み合って移動することが可能になっている。   The drive mechanism 6 reciprocates the frame 4 in the length direction of the settling basin 1, and a pair of left and right pin racks 61, 61 laid horizontally across the entire length of the settling basin 1 on both sides of the settling basin 1, The frame 4 includes a pair of left and right pinions 63 provided at both ends of the frame 4 so as to mesh with the pin racks 61. Each pin rack 61 has a plurality of pins 62 arranged in a line at a fixed interval on the guide member 55 that also serves as a base member, and the pinion 63 can be engaged and moved from above and below the pin rack 61. Yes.

フレーム4を沈殿池1の一方の端部Pから他方の端部Qまで移動させる往路では、ピニオン63はピンラック61の下面に噛み合って移動する。また、フレーム4を往路と反対方向へ移動させて一方の端部Pに戻す復路では、ピニオン63はピンラック61の上面に噛み合って移動する。
ピンラック61の両端部では、ピニオン63は下面から上面、または上面から下面へ移るもので、ピニオン63を一定方向へ回転させることにより、ピニオン63はピンラック61を周回する周回軌道を移動してフレーム4を一体に移動させる。
In the forward path in which the frame 4 is moved from one end P of the sedimentation basin 1 to the other end Q, the pinion 63 meshes with the lower surface of the pin rack 61 and moves. In the return path in which the frame 4 is moved in the opposite direction to the forward path and returned to one end P, the pinion 63 is engaged with the upper surface of the pin rack 61 and moved.
At both ends of the pin rack 61, the pinion 63 moves from the lower surface to the upper surface, or from the upper surface to the lower surface. By rotating the pinion 63 in a certain direction, the pinion 63 moves along the orbit around the pin rack 61 and moves to the frame 4. Are moved together.

前記ピニオン63は駆動装置64によって一定方向に回転駆動される。駆動装置64は前記箱状フレーム41の内部に収納され、減速機構付きのモータ65と、モータ65の出力軸に連繋された駆動ギヤ66と、フレーム4の内部を貫通する前記駆動軸60に装着された従動ギヤ67とから成る。駆動ギヤ66と従動ギヤ67とは互いに噛み合い、モータ65を駆動することにより駆動軸60が一方向へ回転する。   The pinion 63 is rotationally driven in a certain direction by a driving device 64. The drive device 64 is housed inside the box-shaped frame 41 and is mounted on the motor 65 with a speed reduction mechanism, the drive gear 66 connected to the output shaft of the motor 65, and the drive shaft 60 penetrating the inside of the frame 4. Driven gear 67. The drive gear 66 and the driven gear 67 mesh with each other, and the drive shaft 60 rotates in one direction by driving the motor 65.

なお、駆動機構部6は、上記したピニオン63とピンラック61とを用いたものに限らず、図7に示すチェンを用いたものであってもよい。
図7に示す駆動機構部6は、沈殿池の両側に沈殿池の全長にわたり張設される左右一対のチェン70,70と、各チェン70を一方向へ走行させてチェン70が周回する周回軌道に沿って前記フレーム4をチェン70と一体に移動させる駆動装置64とを含んでいる。各チェン70はホイール71,72間に張設され、一方のホイール71が駆動装置64によって駆動される。図示の駆動装置64は、モータ73の回転をチェン74を介して回転軸75に伝え、回転軸75の回転を左右のチェン76を介して各チェン70のホイール71に伝えるものである。
The drive mechanism unit 6 is not limited to the one using the pinion 63 and the pin rack 61 described above, and may be one using a chain shown in FIG.
The drive mechanism unit 6 shown in FIG. 7 includes a pair of left and right chains 70 and 70 stretched over the entire length of the settling basin on both sides of the settling basin, and a circular track around which the chain 70 circulates by causing each chain 70 to travel in one direction. And a driving device 64 for moving the frame 4 integrally with the chain 70 along the axis. Each chain 70 is stretched between wheels 71 and 72, and one wheel 71 is driven by a drive device 64. The illustrated driving device 64 transmits the rotation of the motor 73 to the rotation shaft 75 via the chain 74, and transmits the rotation of the rotation shaft 75 to the wheel 71 of each chain 70 via the left and right chains 76.

上記した構成の汚泥回収装置において、往路ではピニオン63がピンラック61の下面に噛み合ってフレーム4を一体移動させる。これにより掻き寄せ板2は沈殿池1の一方の端部Pから他方の端部Qまで池底10の近くを池底10に沿って移動し、池底10に堆積した汚泥Aを一方向へ掻き寄せる。復路ではピニオン63がピンラック61と上面に噛み合ってフレーム4を一体移動させる。復路は往路より高位置であるので、掻き寄せ板2は池底10の近くから上方へ持ち上げられて池底10から離れ、池底10の汚泥Aをかき混ぜることなく水中を移動し、沈殿池1の一端部Pに戻る。   In the sludge collecting apparatus having the above-described configuration, the pinion 63 meshes with the lower surface of the pin rack 61 and moves the frame 4 integrally in the forward path. As a result, the scraping plate 2 moves along the pond bottom 10 from one end P to the other end Q of the settling basin 1 along the pond bottom 10, and the sludge A deposited on the pond bottom 10 is moved in one direction. Rake. On the return path, the pinion 63 meshes with the pin rack 61 and the upper surface to move the frame 4 integrally. Since the return path is higher than the forward path, the scraper plate 2 is lifted upward from the vicinity of the pond bottom 10 and moved away from the pond bottom 10 to move in the water without stirring the sludge A on the pond bottom 10. Return to one end P of the.

この実施例では、フレーム4は駆動軸60に対して回動自由であるから、掻き寄せ板2は常にフレーム4に吊持された状態、すなわち下方へ垂下した状態に保持される。また、往動時はフレーム4の姿勢を保持されて掻き寄せ板2の傾動が規制されるので、掻き寄せ板2は移動時の水の抵抗を受けても傾くことがなく、池底の掻き寄せ作業に支障をきたすことはない。   In this embodiment, since the frame 4 is freely rotatable with respect to the drive shaft 60, the scraping plate 2 is always held in a state of being suspended from the frame 4, that is, in a state of hanging downward. Further, since the posture of the frame 4 is maintained during the forward movement and the tilting of the scraping plate 2 is restricted, the scraping plate 2 does not tilt even when subjected to water resistance during movement, and the scraping of the pond bottom There is no hindrance to the shifting work.

この発明の一実施例である汚泥回収装置の構成を示す側面図である。It is a side view which shows the structure of the sludge collection | recovery apparatus which is one Example of this invention. 図1の実施例の正面図である。It is a front view of the Example of FIG. 他の実施例の正面図である。It is a front view of another Example. 掻き寄せ板の他の実施例を示す側面図である。It is a side view which shows the other Example of a scraping board. 支持機構部および駆動機構部の構成を拡大して示す側面図である。It is a side view which expands and shows the structure of a support mechanism part and a drive mechanism part. 支持機構部および駆動機構部の構成を拡大して示す一部を破断した正面図である。It is the front view which fractured | ruptured a part which expands and shows the structure of a support mechanism part and a drive mechanism part. 駆動機構部の他の実施例を示す平面図である。It is a top view which shows the other Example of a drive mechanism part. 従来例の側面図である。It is a side view of a prior art example. 他の従来例の側面図である。It is a side view of another prior art example.

符号の説明Explanation of symbols

1 沈殿池
2 掻き寄せ板
3 移動機構
4 フレーム
5 支持機構部
6 駆動機構部
10 池底
50 ローラ
51 アーム
52 ガイドレール
61 ピンラック
63 ピニオン
64 駆動装置
70 チェン
DESCRIPTION OF SYMBOLS 1 Sedimentation basin 2 Scraping plate 3 Movement mechanism 4 Frame 5 Support mechanism part 6 Drive mechanism part 10 Pond bottom 50 Roller 51 Arm 52 Guide rail 61 Pin rack 63 Pinion 64 Drive device 70 Chain

Claims (2)

沈殿池の池底に堆積した汚泥を一方向へ掻き寄せて回収する汚泥回収装置において、
前記池底の幅に対応させた掻き寄せ板と、沈殿池の上方に設けられ前記掻き寄せ板を沈殿池の一方の端部から他方の端部まで池底に沿って移動させる移動機構とから成り、
前記移動機構は、沈殿池の幅に相当する全長を有し前記掻き寄せ板を上方より吊持する吊下棒が両端部に一体に設けられた管状をなすフレームと、このフレームの両端部を移動可能に支持する支持機構部と、前記フレームを沈殿池の一方の端部から他方の端部まで移動させる往路に対し前記往路と反対方向へフレームを移動させて一方の端部に戻す復路が高位置となる周回軌道に沿ってフレームを移動させる駆動機構部とを含み、
前記支持機構部は、前記往路においてフレームを支持する第1の支持機構と、前記復路においてフレームを支持する第2の支持機構と、往路から復路への移行路および復路から往路への移行路においてフレームを支持する第3の支持機構とから成り、
第1の支持機構は、フレームの両端部にそれぞれ取り付けられフレームの前方へ突き出る部分の前端とフレームの後方へ突き出る部分の後端にそれぞれ第1のローラが回動自由に設けられた左右一対のアームと、沈殿池の両側に設けられ前記往路において前記左右のアームの各第1のローラを転動自由に支持するとともに、各アームとの間でフレームの姿勢を保持して掻き寄せ板が傾くのを規制する機構を構成する両側のガイドレールとで構成され、
第2の支持機構は、両端部がフレームの両端より突出するように軸受を介してフレームの内部に支持された駆動軸の両端部にそれぞれ回動自由に支持される第2のローラと、前記復路において前記の各第1のローラを両側のガイドレールの上方位置に宙吊り状態にして前記の各第2のローラを上面で転動自由に支持する両側のガイド部材とで構成され、
第3の支持機構は、前記の各第2のローラと、前記ガイド部材の周囲を囲むように設けられ往路から復路への移行路および復路から往路への移行路において前記の各第2のローラを支持しつつ移動させる両側のガイド板とで構成されて成る汚泥回収装置。
In the sludge recovery device that collects sludge accumulated on the bottom of the sedimentation basin in one direction,
A scraping plate corresponding to the width of the pond bottom, and a moving mechanism provided above the settling basin and moving the rake plate from one end of the settling basin to the other end along the pond bottom. ,
The moving mechanism has a tubular frame having a total length corresponding to the width of the settling basin, and a suspension rod that suspends the scraping plate from above, and is formed integrally at both ends, and both ends of the frame. a support mechanism for movably supporting, backward to return the frame to one one end by moving the frame to the forward and opposite directions with respect to the forward moving from the end to the other end of the settling tank Including a drive mechanism that moves the frame along a circular orbit that is at a high position,
The support mechanism includes: a first support mechanism that supports the frame in the forward path; a second support mechanism that supports the frame in the return path; and a transition path from the forward path to the return path and a transition path from the return path to the forward path. A third support mechanism for supporting the frame,
The first support mechanism is a pair of left and right arms, each of which is attached to both ends of the frame and has a first roller rotatably provided at a front end of a portion protruding forward of the frame and a rear end of a portion protruding rearward of the frame. The arm is provided on both sides of the sedimentation basin and supports the first rollers of the left and right arms in the forward path so as to freely roll, and the scraping plate is tilted while maintaining the posture of the frame between the arms. It consists of guide rails on both sides that constitute a mechanism that regulates the
The second support mechanism includes a second roller that is rotatably supported on both ends of the drive shaft supported inside the frame via bearings so that both ends protrude from both ends of the frame, In the return path, each of the first rollers is suspended in a position above the guide rails on both sides, and each of the second rollers is supported on the upper surface so as to freely roll on the upper surface.
The third support mechanism is provided so as to surround each of the second rollers and the guide member, and each of the second rollers in the transition path from the forward path to the return path and the transition path from the return path to the forward path. A sludge recovery apparatus comprising guide plates on both sides that are moved while supporting the slag.
前記駆動機構部は、沈殿池の両側に沈殿池の全長にわたり敷設される左右一対のピンラックと、前記駆動軸の両端部に各ピンラックと噛み合うように装着された左右一対のピニオンと、前記駆動軸を一方向へ回転させてピンラックを周回する周回軌道に沿って各ピニオンを移動させる駆動装置とを含んでいる請求項1に記載された汚泥回収装置。 The drive mechanism includes a pair of left and right pin racks laid on both sides of the settling basin, and a pair of left and right pinions mounted on both ends of the drive shaft so as to engage with the pin racks, and the drive shaft. The sludge recovery device according to claim 1, further comprising: a driving device that rotates the pinion in one direction to move each pinion along a circular orbit around the pin rack.
JP2004225841A 2004-08-02 2004-08-02 Sludge recovery equipment Expired - Lifetime JP4088614B2 (en)

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