JP2006136773A - Septic tank sludge treatment vehicle - Google Patents

Septic tank sludge treatment vehicle Download PDF

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JP2006136773A
JP2006136773A JP2004326836A JP2004326836A JP2006136773A JP 2006136773 A JP2006136773 A JP 2006136773A JP 2004326836 A JP2004326836 A JP 2004326836A JP 2004326836 A JP2004326836 A JP 2004326836A JP 2006136773 A JP2006136773 A JP 2006136773A
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tank
sludge
water
septic
storage tank
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JP4520279B2 (en
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Kenji Kawaguchi
健二 川口
Takeshi Niida
武志 仁井田
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KANEMATSU ENG
Kanematsu Engineering Co Ltd
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KANEMATSU ENG
Kanematsu Engineering Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a septic tank sludge treatment vehicle which can surely separate sludge water collected in a storage tank into sludge and water to concentrate and reduce the sludge, enables always efficient suction and collection operation by transferring the reduced sludge to another section in the storage tank to empty a space in which the sludge water is collected, and can freely change the capacity of the storage tank according to the volume etc. of a septic tank. <P>SOLUTION: The septic tank sludge treatment vehicle is equipped with the storage tank accommodating the sludge water in the septic tank, and a suction mechanism reducing pressure inside of the storage tank to take the sludge water into the storage tank. In the storage tank, a recycle tank for performing the solid-liquid separation of the collected sludge water, and a sludge tank accommodating solid matter separated in the recycle tank are installed. The sludge tank and the recycle tank are partitioned by an intermediate push plate made so as to be movable back and forth. The septic tank sludge treatment vehicle is further equipped with a transfer means for transferring the solid matter separated in the recycle tank to the sludge tank, and a discharge means for discharging liquid separated in the recycle tank to the outside. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、浄化槽内の汚泥水を吸引回収して濃縮汚泥と清浄水(分離水)とに分離し、分離水を浄化槽内へと戻すことができる浄化槽汚泥処理車に関する。   The present invention relates to a septic tank sludge treatment vehicle capable of sucking and collecting sludge water in a septic tank, separating it into concentrated sludge and clean water (separated water), and returning the separated water into the septic tank.

従来、工場や家庭等から排出される汚泥水は、一旦浄化槽内に貯留された後、バキューム車のタンク内に吸引回収されて、汚水処理場へと運搬されて処理されているのが一般的である。
しかしながら、このバキューム車を使用する従来の方法では、浄化槽内の汚泥水の全量をそのまま回収運搬しているため、処理効率が非常に悪く、処理コストが高くなるという問題があった。
Conventionally, sludge water discharged from factories, homes, etc. is once stored in a septic tank, and then sucked and collected in a tank of a vacuum vehicle and transported to a sewage treatment plant for processing. It is.
However, in the conventional method using this vacuum vehicle, since the entire amount of sludge water in the septic tank is collected and transported as it is, there is a problem that the processing efficiency is very low and the processing cost is high.

かかる実情に鑑みて、例えば特許文献1において、回収した汚泥水を現場にて汚泥と清浄水(分離水)とに固液分離することができる汚泥吸引車が提案されている。
特許文献1に開示された汚泥吸引車は、タンク内に回収した汚泥水を汚水分離器へと供給して固形分と液体とに分離し、固形分は汚泥水室に残して液体を前方の浄化水室に移送して高圧洗浄車用の洗浄用水として再利用するようにしたものである。
In view of this situation, for example, Patent Document 1 proposes a sludge suction vehicle capable of solid-liquid separation of recovered sludge water into sludge and clean water (separated water) on site.
The sludge suction vehicle disclosed in Patent Document 1 supplies sludge water collected in a tank to a sewage separator to separate it into a solid content and a liquid, and the solid content is left in the sludge water chamber and the liquid is moved forward. It is transferred to the purified water chamber and reused as cleaning water for high-pressure washing vehicles.

しかしながら、この特許文献1の開示技術では、汚泥水が回収される汚泥水室内に固形分が常に残存している状態となるため、汚泥水室内に残存した固形分により汚泥水の吸引回収効率が低下してしまう場合があった。
また、汚泥水から固形分を分離するためにサイクロン式の汚水分離器が設けられているものの、このような汚水分離器では分離が充分に行えない場合があった。しかも、分離された固形分は単に水分が除去されるのみで濃縮されることなくタンク内に貯留されるので、処理場への持ち込み量が多くなって運搬効率が悪くなる上に、処理場の負担も大きいという問題があった。
更に、タンク内の汚泥水室及び浄化水室の容積が固定されているため、浄化槽の容積や内容物(固形分の量等)に応じた柔軟な対応を採ることができす、1台の処理車で多様な浄化槽に対応することは困難であった。
However, in the disclosed technique of Patent Document 1, since the solid content always remains in the sludge water chamber in which the sludge water is recovered, the sludge water suction and recovery efficiency is improved by the solid content remaining in the sludge water chamber. There was a case where it falls.
Moreover, although a cyclone-type sewage separator is provided to separate solids from sludge water, such a sewage separator sometimes cannot be sufficiently separated. In addition, since the separated solid content is simply removed by water and stored in the tank without being concentrated, the amount brought into the treatment plant increases and transport efficiency deteriorates. There was a problem that the burden was large.
Furthermore, since the volume of the sludge water chamber and the purified water chamber in the tank is fixed, it is possible to take a flexible response according to the volume of the septic tank and the contents (solid content, etc.) It was difficult to deal with various septic tanks with a treatment vehicle.

実公平6−33028号公報Japanese Utility Model Publication No. 6-33028

本発明は、上記した従来技術のもつ課題を解決すべくなされたものであって、貯槽タンク内に回収された汚泥水を固形分と清浄水(分離水)とに確実に分離でき、更に分離された固形分を貯槽内にて濃縮して減容することができて、処理場への運搬効率を高め得るとともに、処理場の負担を軽減することができ、更に減容された汚泥を貯槽内の別の区画に移送することによって、浄化槽内の汚泥水が回収される部分を空にすることができて、常に効率良い吸引回収作業が可能となり、しかも浄化槽の容積や内容物に応じて貯槽内の容量を自由に変化させることができる浄化槽汚泥処理車を提供せんとするものである。   The present invention has been made to solve the above-described problems of the prior art, and can reliably separate the sludge water collected in the storage tank into solid content and clean water (separated water). It is possible to concentrate and reduce the volume of the solid content in the storage tank, increase the efficiency of transportation to the treatment plant, reduce the burden on the treatment plant, and further store the reduced volume of sludge By transferring to another compartment in the septic tank, the portion of the septic tank where the sludge water is recovered can be emptied, enabling efficient suction recovery work at all times, and depending on the volume and contents of the septic tank It is intended to provide a septic tank sludge treatment vehicle that can freely change the capacity in the storage tank.

請求項1に係る発明は、浄化槽内の汚泥水を内部に収容する貯槽と、該貯槽に連結されて貯槽内部を減圧して貯槽内に汚泥水を取り入れる吸引機構とを具備してなる浄化槽汚泥処理車であって、前記貯槽の内部は、回収した汚泥水を固液分離させるためのリサイクル槽と、該リサイクル槽にて分離された固形分を収容する汚泥槽とを備え、これら汚泥槽とリサイクル槽は貯槽内を前後移動可能に構成された中押し板により仕切られているとともに、前記リサイクル槽にて分離された固形分を汚泥槽へと移送する移送手段と、前記リサイクル槽にて分離された液体を外部へと排出する排出手段とを更に具備してなることを特徴とする浄化槽汚泥処理車に関する。   The invention according to claim 1 is a septic tank sludge comprising a storage tank for storing the sludge water in the septic tank, and a suction mechanism connected to the storage tank to depressurize the inside of the storage tank and take in the sludge water into the storage tank. The storage tank includes a recycling tank for solid-liquid separation of the recovered sludge water, and a sludge tank for storing the solid content separated in the recycling tank, and the sludge tank; The recycling tank is partitioned by an intermediate push plate configured to be movable back and forth in the storage tank, and is separated by a transfer means for transferring the solid content separated in the recycling tank to a sludge tank, and the recycling tank. Further, the present invention relates to a septic tank sludge treatment vehicle characterized by further comprising discharge means for discharging the liquid to the outside.

請求項2に係る発明は、前記リサイクル槽内に凝集剤を供給する凝集剤供給手段と、該リサイクル槽内で凝集剤と汚泥水とを攪拌混合するための攪拌羽根が設けられてなることを特徴とする請求項1記載の浄化槽汚泥処理車に関する。
請求項3に係る発明は、前記凝集剤供給手段として、リサイクル槽内に粉体凝集剤を供給するための手段が設けられてなることを特徴とする請求項2記載の浄化槽汚泥処理車に関する。
請求項4に係る発明は、前記リサイクル槽に、前記排出手段により排出される液体を濾過するためのスクリーンと、該スクリーンのリサイクル槽内に面する面を遮蔽可能な遮蔽手段が設けられてなることを特徴とする請求項1乃至3いずれかに記載の浄化槽汚泥処理車に関する。
The invention according to claim 2 is provided with a flocculant supply means for supplying a flocculant into the recycle tank and a stirring blade for stirring and mixing the flocculant and sludge water in the recycle tank. The present invention relates to a septic tank sludge treatment vehicle according to claim 1.
The invention according to claim 3 relates to the septic tank sludge treatment vehicle according to claim 2, characterized in that means for supplying the powder flocculant into the recycle tank is provided as the flocculant supply means.
According to a fourth aspect of the present invention, the recycling tank is provided with a screen for filtering the liquid discharged by the discharging means, and shielding means capable of shielding the surface of the screen facing the recycling tank. The present invention relates to a septic tank sludge treatment vehicle according to any one of claims 1 to 3.

請求項1に係る発明によれば、分離された固形分を中押し板の駆動によって貯槽内にて濃縮して減容することができるので、固形分貯留のためのタンク容積が小さくて済み、1台の処理車で多数の浄化槽の汚泥回収処理を行うことができるとともに、処理場への運搬効率も大きく高められ、処理場の負担も軽減することができる。
また、リサイクル槽で得られた固形分を汚泥槽へと移送する移送手段と、リサイクル槽にて分離された液体を外部へと排出する排出手段とを備えているので、浄化槽内の汚泥水が回収されるリサイクル槽を空にすることができて、常に効率良い吸引回収作業が可能となる。
更に、中押し板を移動させることにより、処理対象となる浄化槽の容積や内容物(固形分の量等)に応じて、汚泥槽とリサイクル槽の容量を自由に変化させることができるので、1台の処理車で多様な大きさや内容物の浄化槽に柔軟に対応することが可能となる。
According to the first aspect of the present invention, since the separated solid content can be concentrated and reduced in the storage tank by driving the intermediate pushing plate, the tank volume for storing the solid content can be reduced. A large number of septic tanks can be collected with a single processing vehicle, and the efficiency of transporting to the treatment plant can be greatly increased, and the burden on the treatment plant can be reduced.
Moreover, since it has a transfer means for transferring the solid content obtained in the recycle tank to the sludge tank and a discharge means for discharging the liquid separated in the recycle tank to the outside, the sludge water in the septic tank is The recycle tank to be collected can be emptied, and efficient suction collection work can always be performed.
Furthermore, by moving the intermediate pushing plate, the capacity of the sludge tank and the recycling tank can be freely changed according to the volume of the septic tank and the contents (solid content, etc.) to be treated. This makes it possible to flexibly handle septic tanks of various sizes and contents.

請求項2に係る発明によれば、リサイクル槽内に凝集剤を供給する凝集剤供給手段と、リサイクル槽内で凝集剤と汚泥水とを攪拌混合するための攪拌羽根が設けられているので、貯槽内に回収された汚泥水を固形分と清浄水(分離水)とに短時間で確実に分離することが可能となる。
請求項3に係る発明によれば、リサイクル槽に粉体凝集剤を供給するための手段と、凝集剤と汚泥水とを攪拌混合するための攪拌羽根が設けられているので、粉体凝集剤を使用しての汚泥水の固液分離が可能となる。
請求項4に係る発明によれば、排出手段により排出される液体を濾過するためのスクリーンが設けられているので、貯槽内にて固液分離された液体を不純物の少ない分離水として浄化槽内に張り水として戻すことができて水資源を有効にリサイクルすることができる。また、スクリーンのリサイクル槽内に面する面を遮蔽可能な遮蔽手段が設けられているので、排水時等の必要時以外はスクリーン面を遮蔽することでスクリーンの目詰まりを防ぐことができる。
According to the invention according to claim 2, since the flocculant supply means for supplying the flocculant into the recycling tank and the stirring blade for stirring and mixing the flocculant and the sludge water in the recycling tank are provided. The sludge water collected in the storage tank can be reliably separated into solid content and clean water (separated water) in a short time.
According to the invention of claim 3, since the means for supplying the powder flocculant to the recycling tank and the stirring blade for stirring and mixing the flocculant and the sludge water are provided, the powder flocculant This makes it possible to separate the sludge water into solid and liquid.
Since the screen for filtering the liquid discharged | emitted by the discharge | emission means is provided according to the invention which concerns on Claim 4, the liquid solid-liquid-separated in the storage tank is made into separation water with few impurities in a septic tank. It can be returned as tension water and water resources can be recycled effectively. Further, since the shielding means capable of shielding the surface facing the inside of the recycling tank of the screen is provided, the screen surface can be prevented from being clogged by shielding the screen surface except when necessary such as during drainage.

以下、本発明に係る浄化槽汚泥処理車(以下、単に処理車という)の好適な実施形態について、図面を参照しつつ説明する。
図1は本発明に係る処理車の全体を示す外観側面図、図2は本発明に係る処理車の全体を示す外観平面図、図3は本発明に係る処理車の全体を示す外観背面図、図4は本発明に係る処理車の主要部の構成を示すフローシートである。
本発明に係る処理車は、浄化槽内の汚泥水を内部に収容する貯槽(1)と、この貯槽(1)に連結されて貯槽内部を減圧して貯槽内に汚泥水を取り入れる吸引機構(2)と、貯槽(1)内に凝集剤を供給する凝集剤供給手段(3)とが、車両(4)上に搭載されている。尚、図4において、破線の四角形枠で囲まれた領域内の構成が車両(4)上に搭載される部分である。
Hereinafter, a preferred embodiment of a septic tank sludge treatment vehicle (hereinafter simply referred to as a treatment vehicle) according to the present invention will be described with reference to the drawings.
FIG. 1 is an external side view showing the entire processing vehicle according to the present invention, FIG. 2 is an external plan view showing the entire processing vehicle according to the present invention, and FIG. 3 is an external rear view showing the entire processing vehicle according to the present invention. FIG. 4 is a flow sheet showing the configuration of the main part of the processing vehicle according to the present invention.
The treatment vehicle according to the present invention includes a storage tank (1) for accommodating sludge water in a septic tank, and a suction mechanism (2) connected to the storage tank (1) to depressurize the interior of the storage tank and take in sludge water into the storage tank. ) And a flocculant supply means (3) for supplying the flocculant into the storage tank (1) are mounted on the vehicle (4). In FIG. 4, the configuration in the area surrounded by the broken-line square frame is a portion mounted on the vehicle (4).

貯槽(1)は略円筒形状のタンクであって、その後端部には開閉可能な蓋が設けられている。
貯槽(1)の内部は、回収した汚泥水を後述する凝集剤によって固液分離させるためのリサイクル槽(11)と、該リサイクル槽にて分離された固形分を収容する汚泥槽(12)からなり、これら汚泥槽(12)とリサイクル槽(11)は中押し板(5)によって仕切られている。
The storage tank (1) is a substantially cylindrical tank, and a lid that can be opened and closed is provided at the rear end thereof.
The interior of the storage tank (1) includes a recycling tank (11) for solid-liquid separation of the recovered sludge water using a flocculant described later, and a sludge tank (12) for storing the solid content separated in the recycling tank. Thus, the sludge tank (12) and the recycle tank (11) are partitioned by the intermediate pushing plate (5).

中押し板(5)は、油圧又は空気圧駆動のシリンダ(51)の駆動により、貯槽(1)内において前後方向に移動可能に構成されており、これによって貯槽(1)内における汚泥槽(12)とリサイクル槽(11)の容積を自由に変化させることができる。
また、中押し板(5)を貯槽内において前進させることによって、後述する如くリサイクル槽(11)にて固液分離された固形分を圧縮して減容化することができる。
The intermediate pushing plate (5) is configured to be movable in the front-rear direction in the storage tank (1) by driving a hydraulically or pneumatically driven cylinder (51), whereby the sludge tank (12) in the storage tank (1). And the volume of the recycling tank (11) can be changed freely.
Further, by moving the intermediate pushing plate (5) forward in the storage tank, the solid content separated in the recycle tank (11) can be compressed and volume-reduced as described later.

貯槽(1)には、リサイクル槽(11)にて分離された固形分を汚泥槽(12)へと移送する移送手段と、リサイクル槽(11)にて分離された液体を外部へと排出する排出手段とが設けられている。
移送手段は、リサイクル槽(11)と汚泥槽(12)とを連結する配管(6)と、この配管(6)の中途部に設けられたバルブ(7)とから構成されており、後述する吸引機構(2)を駆動して汚泥槽(12)内を減圧しつつバルブ(7)を開放することにより、リサイクル槽(11)内の固形分を配管(6)を介して汚泥槽(12)へと移送することができる。
また、配管(6)には分岐管(39)が接続されている。この分岐管(39)はバルブ(41)を介して外部に開放されており、リサイクル槽(11)の内容物を分岐管(39)を通して外部へと排出することができる。
The storage tank (1) discharges the liquid separated in the recycling tank (11) to the outside, and a transfer means for transferring the solid content separated in the recycling tank (11) to the sludge tank (12). And a discharging means.
The transfer means includes a pipe (6) for connecting the recycle tank (11) and the sludge tank (12), and a valve (7) provided in the middle of the pipe (6), which will be described later. By opening the valve (7) while driving the suction mechanism (2) to depressurize the sludge tank (12), the solid content in the recycle tank (11) is passed through the pipe (6) to the sludge tank (12 ).
A branch pipe (39) is connected to the pipe (6). The branch pipe (39) is opened to the outside through a valve (41), and the contents of the recycling tank (11) can be discharged to the outside through the branch pipe (39).

排出手段は、リサイクル槽(11)の後端部と浄化槽(S)内に挿入されるホース(8)とを三方バルブ(44)を介して連結する配管(9)と、この配管(9)の中途部に設けられたポンプ(10)、透視管(13)及びバルブ(43)とから構成されている。尚、図中(81)は、ホース(8)が巻回されるホースリールである。
これにより、ポンプ(10)を駆動してバルブ(43)を開放し、三方バルブ(44)をホース(8)側に切り換えることによって、リサイクル槽(11)内の液体をホース(8)を通して処理対象の浄化槽等の外部へと排出することができる。
The discharge means includes a pipe (9) for connecting the rear end of the recycle tank (11) and the hose (8) inserted into the septic tank (S) via a three-way valve (44), and the pipe (9). It comprises a pump (10), a fluoroscopy tube (13) and a valve (43) provided in the middle. In the figure, reference numeral (81) denotes a hose reel around which the hose (8) is wound.
Thereby, the pump (10) is driven to open the valve (43), and the liquid in the recycling tank (11) is processed through the hose (8) by switching the three-way valve (44) to the hose (8) side. It can be discharged outside the target septic tank.

リサイクル槽(11)の後端部には、上記排出手段により排出される前の液体を濾過するためのスクリーン(14)と、このスクリーン(14)のリサイクル槽内に面する面を遮蔽可能な遮蔽手段が設けられている。
リサイクル槽(11)の後端内部には小径の有底円筒状部が形成されており、この円筒状部の前端部はリサイクル槽(11)に向けて開放され、後端部はリサイクル槽(11)の後端面を形成している。
スクリーン(14)は、この有底円筒状部の前端部の開放面を覆うように取り付けられ、有底円筒状部の後端部には上記した排出手段の配管(9)が連結されており、これによって、リサイクル槽(11)内の液体はスクリーン(14)を通過することなく配管(9)に流入することができないようになっている。
At the rear end of the recycling tank (11), a screen (14) for filtering the liquid before being discharged by the discharging means and the surface of the screen (14) facing the recycling tank can be shielded. Shielding means are provided.
A small-diameter bottomed cylindrical part is formed inside the rear end of the recycling tank (11), the front end of the cylindrical part is opened toward the recycling tank (11), and the rear end is a recycling tank ( 11) A rear end surface is formed.
The screen (14) is attached so as to cover the open surface of the front end portion of the bottomed cylindrical portion, and the pipe (9) of the discharge means is connected to the rear end portion of the bottomed cylindrical portion. As a result, the liquid in the recycling tank (11) cannot flow into the pipe (9) without passing through the screen (14).

遮蔽手段は、スクリーン(14)の表面(リサイクル槽内に面する面)を覆う遮蔽板(15)と、上記円筒状部内に配設されて遮蔽板(15)に接続された油圧シリンダ(16)とから構成されており、遮蔽板(15)は油圧シリンダ(16)の駆動もしくは手動ネジによって前後移動し、後退時においてスクリーン(14)の表面を遮蔽する。
このように、遮蔽板(15)によってスクリーン(14)の表面を遮蔽することが可能となっていることにより、後述するリサイクル槽(11)内の攪拌時において、固形分のスクリーン(14)への目詰まりを防ぐことができる。
The shielding means includes a shielding plate (15) that covers the surface of the screen (14) (a surface facing the recycling tank), and a hydraulic cylinder (16) disposed in the cylindrical portion and connected to the shielding plate (15). The shielding plate (15) is moved back and forth by the drive of the hydraulic cylinder (16) or manual screw, and shields the surface of the screen (14) when retreating.
Thus, since it is possible to shield the surface of the screen (14) by the shielding plate (15), when stirring in the recycling tank (11) described later, to the solid content screen (14). Can prevent clogging.

また、本発明においては、スクリーン(14)が目詰まりした時にこれを解消するためのスクリーン洗浄手段が設けられている。
スクリーン洗浄手段は、水タンク(17)と、水タンク(17)内の水を移送するポンプ(18)と、水タンク(17)とリサイクル槽(11)とを連結する配管(19)とから構成されており、配管(19)の端部はスクリーン(14)の裏面側において開口している。
これにより、ポンプ(18)を駆動させることで、水タンク(17)内の水をスクリーン(14)の裏面側に向けて噴射することができ、スクリーン(14)の目詰まりを解消することが可能となる。
In the present invention, a screen cleaning means is provided for eliminating the clogging of the screen (14).
The screen cleaning means includes a water tank (17), a pump (18) for transferring water in the water tank (17), and a pipe (19) connecting the water tank (17) and the recycling tank (11). The end of the pipe (19) is open on the back side of the screen (14).
Thereby, by driving the pump (18), water in the water tank (17) can be sprayed toward the back side of the screen (14), and clogging of the screen (14) can be eliminated. It becomes possible.

リサイクル槽(11)の後端部には、後述する凝集剤と汚泥水とを攪拌混合するための攪拌羽根(40)が設けられている。
攪拌羽根(40)は、上述した有底円筒状部に取り付けられており、貯槽(1)の外部に設けられたモータによって回転するものである。
攪拌羽根(40)は回転軸の先端に取り付けられており、取り付けられた羽根はスクリーン(14)の表面よりも外側(前方側)のリサイクル槽(11)の内部において回転する。
また、リサイクル槽(11)には、ばっ気バルブ(42)が接続されており、リサイクル槽内にばっ気用の外気を取り入れることができるようになっている。
A stirring blade (40) for stirring and mixing a flocculant described later and sludge water is provided at the rear end portion of the recycling tank (11).
The stirring blade (40) is attached to the above-described bottomed cylindrical portion, and is rotated by a motor provided outside the storage tank (1).
The stirring blade (40) is attached to the tip of the rotating shaft, and the attached blade rotates inside the recycling tank (11) on the outer side (front side) than the surface of the screen (14).
In addition, an aeration valve (42) is connected to the recycling tank (11) so that outside air for aeration can be taken into the recycling tank.

吸引機構(2)は、真空ポンプ(21)と、その吸気側に設けられた逆止弁(22)と、その排気側に設けられたオイルセパレータ(23)と、一端部が二方向に分岐されて汚泥槽(12)及びリサイクル槽(11)の上部に夫々バルブ(25)(26)を介して連結された配管(24)と、この配管(24)の中途部に設けられたエアクリーナ(27)と、このエアクリーナ(27)と真空ポンプ(21)の間に設けられた四方弁(28)と、この四方弁(28)の一つの弁口と接続された脱臭器(29)とを備えている。
更に、汚泥槽(12)には配管(24)とは別経路の配管(20)が連結されており、この配管(20)はバルブ(30)を介して、四方弁(28)と脱臭器(29)とを連結している配管と接続しており、この配管(20)は四方弁(28)の切り替えに関係なく常に吸気管として作用する。
The suction mechanism (2) includes a vacuum pump (21), a check valve (22) provided on the intake side, an oil separator (23) provided on the exhaust side, and one end branched in two directions A pipe (24) connected to the upper part of the sludge tank (12) and the recycling tank (11) via valves (25) and (26), respectively, and an air cleaner ( 27), a four-way valve (28) provided between the air cleaner (27) and the vacuum pump (21), and a deodorizer (29) connected to one valve port of the four-way valve (28). I have.
Further, a pipe (20) of a different path from the pipe (24) is connected to the sludge tank (12), and this pipe (20) is connected to the four-way valve (28) and the deodorizer via the valve (30). This pipe (20) always acts as an intake pipe regardless of the switching of the four-way valve (28).

上記吸引機構(2)は、四方弁(28)が実線の位置に切り替わっているときに、真空ポンプ(21)を駆動すると、図2中に実線矢印で示す如く配管(24)に吸引力が生じるので、バルブ(25)を開放するとリサイクル槽(11)内が減圧され、バルブ(26)を開放すると汚泥槽(12)内が減圧される。
このとき、配管(20)にも実線矢印で示す如く吸引力が生じるので、バルブ(30)を開放すると汚泥槽(12)内が減圧されるが、バルブ(26)を開放している場合にはバルブ(30)を開放する必要はない。
尚、図2において、細い矢印(実線矢印及び破線矢印)は空気の流れ、太い黒矢印は濃縮汚泥の流れ、太い白矢印は水(排水)の流れ、太い斜線矢印は浄化槽内の汚泥水の流れをそれぞれ表わしている。
When the vacuum pump (21) is driven when the four-way valve (28) is switched to the solid line position, the suction mechanism (2) has a suction force on the pipe (24) as shown by the solid line arrow in FIG. Therefore, when the valve (25) is opened, the inside of the recycling tank (11) is decompressed, and when the valve (26) is opened, the inside of the sludge tank (12) is decompressed.
At this time, a suction force is also generated in the pipe (20) as indicated by the solid line arrow. Therefore, when the valve (30) is opened, the inside of the sludge tank (12) is decompressed, but when the valve (26) is opened. Need not open the valve (30).
In FIG. 2, thin arrows (solid arrows and broken arrows) indicate air flow, thick black arrows indicate concentrated sludge flow, thick white arrows indicate water (drainage) flow, and thick diagonal arrows indicate sludge water in the septic tank. Each flow is represented.

一方、四方弁(28)が破線の位置に切り替わっているときに、真空ポンプ(21)を駆動すると、図2中に破線矢印で示す如く配管(24)に圧送力が生じるので、バルブ(25)を開放するとリサイクル槽(11)内が加圧され、バルブ(26)を開放すると汚泥槽(12)内が加圧される。
このとき、配管(20)には、破線矢印で示す如く吸引力が生じるので、バルブ(30)を開放すると、汚泥槽(12)内が減圧される。
従って、バルブ(26)を閉じて、バルブ(25)及びバルブ(30)を開放することにより、リサイクル槽(11)内が加圧されて汚泥槽(12)内が減圧されるので、リサイクル槽(11)の内容物を、配管(6)を介して汚泥槽(12)へと移送することができる。
On the other hand, when the vacuum pump (21) is driven when the four-way valve (28) is switched to the position of the broken line, a pumping force is generated in the pipe (24) as shown by the broken line arrow in FIG. ) Is pressurized, the inside of the recycling tank (11) is pressurized, and when the valve (26) is opened, the inside of the sludge tank (12) is pressurized.
At this time, a suction force is generated in the pipe (20) as indicated by a broken line arrow, so that when the valve (30) is opened, the inside of the sludge tank (12) is depressurized.
Accordingly, by closing the valve (26) and opening the valve (25) and the valve (30), the inside of the recycling tank (11) is pressurized and the inside of the sludge tank (12) is decompressed. The contents of (11) can be transferred to the sludge tank (12) via the pipe (6).

凝集剤供給手段(3)は、2つの凝集剤タンク(31)と、これら凝集剤タンク(31)とリサイクル槽(11)とを連結する配管(32)と、この配管(32)の中途部に設けられたバルブ(33)とから構成されており、バルブ(33)を開放することによって、2つの凝集剤タンク(31)内の凝集剤を選択的にリサイクル槽(11)内へと供給することができる。
また、配管(32)には、凝集剤タンク(31)に連結されずに一端部が外部に開放された分岐管(34)が接続されており、この分岐管(34)にはバルブ(50)が取り付けられている。これにより、凝集剤タンク(31)内の凝集剤(高分子凝集剤等)とは異なる種類の凝集剤(粉体凝集剤)をこの分岐管(34)を介してリサイクル槽(11)内へと供給することができる。
The flocculant supply means (3) includes two flocculant tanks (31), a pipe (32) connecting the flocculant tank (31) and the recycle tank (11), and a middle portion of the pipe (32). And a valve (33) provided in the tank. By opening the valve (33), the flocculant in the two flocculant tanks (31) is selectively supplied into the recycle tank (11). can do.
The pipe (32) is connected to a branch pipe (34) that is not connected to the flocculant tank (31) but has one end opened to the outside. The branch pipe (34) is connected to a valve (50). ) Is attached. As a result, a different type of flocculant (powder flocculant) from the flocculant (polymer flocculant, etc.) in the flocculant tank (31) is passed through the branch pipe (34) into the recycle tank (11). Can be supplied with.

本発明において使用される凝集剤は、有機系凝集剤(高分子凝集剤)と無機系凝集剤のいずれであってもよい。
高分子凝集剤としては、アニオン系、カチオン系、ノニオン系の凝集剤がいずれも使用可能であり、アニオン系としてはポリアクリルアミド系、ポリアクリル酸ソーダ系、変性ポリアクリルアミド系、カチオン系としてはポリメタアクリル酸エステル系、ポリアクリル酸エステル系、ポリアミン系、ノニオン系としてはポリアクリルアミド系、変性ポリアクリルアミド系のものが挙げられる。具体的な製品としては、クリフロック(商品名、クリタ工業社製)、スーパーフロック、アコフロック(いずれも商品名、三井サイテック社製)等を例示することができる。
また、無機系凝集剤としては、鉄系、アルミニウム系なとの金属系凝集剤、カルシウム系の粉体凝集剤(沈降剤)のいずれも使用可能であり、金属系凝集剤の製品の具体例としては、鉄系のものとしてポリテツ(商品名、日鉄鉱業社製)、アルミニウム系のものとしてポリアルミニウムクロライド(通称パック)、粉体凝集剤の製品の具体例としては、モスナイト(商品名)、スーパーナミット(商品名、ノアテック社製)、ハイパーフロック(ホウショウEG製)を例示することができる。
The flocculant used in the present invention may be either an organic flocculant (polymer flocculant) or an inorganic flocculant.
As the polymer flocculant, any of anionic, cationic and nonionic flocculants can be used. As anionic, polyacrylamide, polyacrylic acid soda, modified polyacrylamide, and cationic Examples of the methacrylic acid ester, polyacrylic acid ester, polyamine, and nonion include polyacrylamide and modified polyacrylamide. Specific examples of the product include Cliff Rock (trade name, manufactured by Kurita Kogyo Co., Ltd.), Super Flock, Aco Flock (both trade names, manufactured by Mitsui Cytec Co., Ltd.), and the like.
In addition, as the inorganic flocculant, any of iron-based and aluminum-based metal flocculants and calcium-based powder flocculants (precipitating agents) can be used. Specific examples of metal flocculant products As an example of an iron-based polytetsu (trade name, manufactured by Nippon Steel Mining Co., Ltd.), an aluminum-based polyaluminum chloride (commonly called pack), and a specific example of a powder flocculant product, mosnite (trade name) , Super Namit (trade name, manufactured by Noatec) and Hyper Flock (made by Hosho EG) can be exemplified.

本発明においては、貯槽内に回収された汚泥の性質に応じて、上記した凝集剤から1種又は2種以上を適宜選択して貯槽内に供給することができる。また、汚泥の種類によっては、凝集剤を供給しなくてもよい場合がある。   In this invention, according to the property of the sludge collect | recovered in the storage tank, 1 type (s) or 2 or more types can be suitably selected from the above-mentioned flocculants, and can be supplied in a storage tank. Further, depending on the type of sludge, it may not be necessary to supply the flocculant.

浄化槽(S)内に挿入されるホース(8)は、上述したように、三方バルブ(44)及び配管(9)を介してリサイクル槽(11)と連結されて排出手段を構成しているが、このホース(8)は更に、配管(35)及びバルブ(36)を介してリサイクル槽(11)と連結され、配管(37)及びバルブ(38)を介して汚泥槽(12)と連結されている。
これら配管(35)(37)は、浄化槽(S)内に挿入されたホース(8)から汚泥水を吸引して貯槽内へと取り入れる吸引管として作用する。
As described above, the hose (8) inserted into the septic tank (S) is connected to the recycle tank (11) via the three-way valve (44) and the pipe (9) to constitute a discharging means. The hose (8) is further connected to the recycling tank (11) through the pipe (35) and the valve (36), and is connected to the sludge tank (12) through the pipe (37) and the valve (38). ing.
These pipes (35) and (37) act as suction pipes that suck sludge water from the hose (8) inserted into the septic tank (S) and take it into the storage tank.

以下、本発明に係る処理車を用いた作業方法の一例を説明する。
本発明に係る処理車を用いて浄化槽から汚泥を回収する場合、先ず浄化槽(S)内にホース(8)の先端を挿入して、吸引機構(2)の真空ポンプ(21)を駆動させる。このとき、四方弁(28)を図2実線の位置に切り替えておくことで、前述したように、図2中に実線矢印で示す如く配管(24)に吸引力が生じるため、バルブ(25)を開放することによりリサイクル槽(11)内が減圧される。
リサイクル槽(11)内が減圧されると、ホース(8)の先端に吸引力が生じるので、浄化槽(S)内の汚泥水はホース(8)から配管(36)を通ってリサイクル槽(11)内に取り入れられる。このとき、バルブ(36)は開放するが、バルブ(38)は閉鎖しておく。
Hereinafter, an example of a working method using the processing vehicle according to the present invention will be described.
When recovering sludge from the septic tank using the treatment vehicle according to the present invention, first, the tip of the hose (8) is inserted into the septic tank (S), and the vacuum pump (21) of the suction mechanism (2) is driven. At this time, by switching the four-way valve (28) to the position of the solid line in FIG. 2, as described above, a suction force is generated in the pipe (24) as indicated by the solid line arrow in FIG. The inside of the recycling tank (11) is depressurized by opening.
When the inside of the recycle tank (11) is depressurized, a suction force is generated at the tip of the hose (8). ). At this time, the valve (36) is opened, but the valve (38) is closed.

リサイクル槽(11)内に汚泥水が取り入れられると、バルブ(33)を開放し、凝集剤供給手段(3)の凝集剤タンク(31)から配管(32)を介して、高分子凝集剤等をリサイクル槽(11)内へと供給する。或いは、バルブ(50)のみを開放して、粉体凝集剤をリサイクル槽(11)内へと供給する。
そして、攪拌羽根(40)を回転させることにより、凝集剤と汚泥を攪拌混合して、汚泥水を固液分離して固形分(フロック)を槽内に沈殿させる。このとき、遮蔽板(15)によってスクリーン(14)の表面を遮蔽しておく。また、必要に応じて、ばっ気バルブ(42)を開放して、ばっ気用の外気をリサイクル槽内に取り入れる。
When sludge water is taken into the recycle tank (11), the valve (33) is opened, and the polymer flocculant etc. from the flocculant tank (31) of the flocculant supply means (3) through the pipe (32) Is fed into the recycling tank (11). Or only a valve | bulb (50) is open | released and a powder flocculant is supplied in a recycling tank (11).
Then, by rotating the stirring blade (40), the flocculant and the sludge are stirred and mixed, the sludge water is separated into solid and liquid, and the solid content (floc) is precipitated in the tank. At this time, the surface of the screen (14) is shielded by the shielding plate (15). Further, if necessary, the aeration valve (42) is opened, and the aeration air is taken into the recycling tank.

汚泥水の固液分離が完了すると、中押し板(5)を貯槽後部に向けて前進させることによって、固液分離された固形分をリサイクル槽(11)内にて圧縮して減容化する。
そして、排出手段のポンプ(10)を駆動させて、リサイクル槽(11)内の液体(上澄み水)を、配管(9)からホース(8)を通して浄化槽(S)へと戻す。このとき、遮蔽板(15)を前進させてスクリーン(14)の表面を露出させておく。
浄化槽(S)に戻される排水は、スクリーン(14)により濾過された液体であるから、固形分が殆ど含まれない清浄な水となる。排水が清浄水(分離水)であることは、透視管(13)を介して目視で確認することができる。
When the solid-liquid separation of the sludge water is completed, the solid content separated by solid-liquid separation is compressed in the recycle tank (11) to reduce the volume by moving the intermediate push plate (5) toward the rear of the storage tank.
And the pump (10) of a discharge means is driven, and the liquid (supernatant water) in a recycle tank (11) is returned to a purification tank (S) through a hose (8) from a pipe (9). At this time, the shielding plate (15) is advanced to expose the surface of the screen (14).
Since the waste water returned to the septic tank (S) is a liquid filtered by the screen (14), it becomes clean water containing almost no solid content. It can be visually confirmed through the fluoroscopic tube (13) that the waste water is clean water (separated water).

リサイクル槽(11)内の清浄水(分離水)の排水が終了すると、四方弁(28)を図2の破線の位置に切り替えて、真空ポンプ(21)を駆動させる。すると、前述したように、図2中に破線矢印で示す如く配管(24)に圧送力が生じるので、バルブ(26)を閉じて、バルブ(25)及びバルブ(30)を開放することにより、リサイクル槽(11)内が加圧されて汚泥槽(12)内が減圧され、リサイクル槽(11)に沈殿した固形分が、配管(6)を介して汚泥槽(12)へと移送される。
これにより、リサイクル槽(11)内は空になるので、別の浄化槽での汚泥水の回収作業へと移ることができる。
When drainage of clean water (separated water) in the recycle tank (11) is completed, the four-way valve (28) is switched to the position indicated by the broken line in FIG. 2 and the vacuum pump (21) is driven. Then, as described above, a pressure feeding force is generated in the pipe (24) as shown by a broken line arrow in FIG. 2, so that by closing the valve (26) and opening the valve (25) and the valve (30), The inside of the recycling tank (11) is pressurized and the inside of the sludge tank (12) is depressurized, and the solid content precipitated in the recycling tank (11) is transferred to the sludge tank (12) through the pipe (6). .
Thereby, since the inside of the recycle tank (11) becomes empty, it can move to the collection | recovery operation | work of sludge water in another septic tank.

このように、本発明に係る処理車によれば、リサイクル槽内で汚泥水を固液分離し、分離された固形分を中押し板の駆動によって貯槽内にて減容することができるので、固形分貯留のためのタンク容積が小さくて済み、1台の処理車で多数の浄化槽の汚泥回収処理を行うことができるとともに、処理場への運搬効率も大きく高められる。
また、リサイクル槽で得られた固形分を汚泥槽へと移送することができるとともに、リサイクル槽にて分離された清浄水(分離水)を外部へと排出することができるので、浄化槽内の汚泥水が回収されるリサイクル槽を空にすることができて、常に効率良い吸引回収作業が可能となる。
Thus, according to the treatment vehicle according to the present invention, the sludge water can be solid-liquid separated in the recycle tank, and the separated solid content can be reduced in the storage tank by driving the intermediate pushing plate. The tank volume for fractional storage is small, and it is possible to perform sludge recovery processing of a large number of septic tanks with a single processing vehicle, and the transportation efficiency to the treatment plant is greatly enhanced.
In addition, the solid content obtained in the recycling tank can be transferred to the sludge tank, and the clean water (separated water) separated in the recycling tank can be discharged to the outside. The recycling tank in which water is collected can be emptied, and efficient suction collection work can always be performed.

本発明は、浄化槽内の汚水を吸引回収するための浄化槽汚泥処理車として利用される。   The present invention is used as a septic tank sludge treatment vehicle for sucking and collecting sewage in a septic tank.

本発明に係る処理車の全体を示す外観側面図である。It is an external appearance side view which shows the whole processing vehicle which concerns on this invention. 本発明に係る処理車の全体を示す外観平面図である。It is an appearance top view showing the whole processing car concerning the present invention. 本発明に係る処理車の全体を示す外観背面図である。It is an external appearance rear view showing the whole processing car concerning the present invention. 本発明に係る処理車の主要部の構成を示すフローシートである。It is a flow sheet which shows the composition of the principal part of the processing car concerning the present invention.

符号の説明Explanation of symbols

1 貯槽
2 吸引機構
3 凝集剤供給手段
4 車両
5 中押し板
6 配管(移送手段)
7 バルブ(移送手段)
9 配管(排出手段)
10 ポンプ(排出手段)
11 リサイクル槽
12 汚泥槽
13 透視管(排出手段)
14 スクリーン
15 遮蔽板(遮蔽手段)
31 凝集剤タンク(凝集剤供給手段)
32 配管(凝集剤供給手段)
33 バルブ(凝集剤供給手段)
34 分岐管(粉体凝集剤供給手段)
50 バルブ(粉体凝集剤供給手段)
40 攪拌羽根
DESCRIPTION OF SYMBOLS 1 Storage tank 2 Suction mechanism 3 Coagulant supply means 4 Vehicle 5 Middle push plate 6 Piping (transfer means)
7 Valve (Transfer means)
9 Piping (discharging means)
10 Pump (discharge means)
11 Recycle tank 12 Sludge tank 13 Perspective tube (discharge means)
14 Screen 15 Shielding plate (shielding means)
31 Coagulant tank (coagulant supply means)
32 Piping (Flocculant supply means)
33 Valve (Flocculant supply means)
34 Branch pipe (powder coagulant supply means)
50 valve (powder coagulant supply means)
40 Stirring blade

Claims (4)

浄化槽内の汚泥水を内部に収容する貯槽と、該貯槽に連結されて貯槽内部を減圧して貯槽内に汚泥水を取り入れる吸引機構とを具備してなる浄化槽汚泥処理車であって、前記貯槽の内部は、回収した汚泥水を固液分離させるためのリサイクル槽と、該リサイクル槽にて分離された固形分を収容する汚泥槽とを備え、これら汚泥槽とリサイクル槽は貯槽内を前後移動可能に構成された中押し板により仕切られているとともに、前記リサイクル槽にて分離された固形分を汚泥槽へと移送する移送手段と、前記リサイクル槽にて分離された液体を外部へと排出する排出手段とを更に具備してなることを特徴とする浄化槽汚泥処理車。   A septic tank sludge treatment vehicle, comprising: a storage tank for storing sludge water in a septic tank; and a suction mechanism connected to the storage tank to depressurize the interior of the storage tank and take in sludge water into the storage tank. The interior of the tank is equipped with a recycling tank for solid-liquid separation of the recovered sludge water and a sludge tank for storing the solid content separated in the recycling tank. These sludge tank and recycling tank move back and forth in the storage tank. It is partitioned by an intermediate pushing plate that can be configured, and a transfer means for transferring the solid content separated in the recycling tank to a sludge tank, and the liquid separated in the recycling tank is discharged to the outside. A septic tank sludge treatment vehicle, further comprising discharge means. 前記リサイクル槽内に凝集剤を供給する凝集剤供給手段と、該リサイクル槽内で凝集剤と汚泥水とを攪拌混合するための攪拌羽根が設けられてなることを特徴とする請求項1記載の浄化槽汚泥処理車。   The flocculant supply means for supplying the flocculant into the recycle tank and a stirring blade for stirring and mixing the flocculant and sludge water in the recycle tank are provided. Septic tank sludge treatment vehicle. 前記凝集剤供給手段として、リサイクル槽内に粉体凝集剤を供給するための手段が設けられてなることを特徴とする請求項2記載の浄化槽汚泥処理車。   3. The septic tank sludge treatment vehicle according to claim 2, wherein a means for supplying a powder flocculant into the recycle tank is provided as the flocculant supply means. 前記リサイクル槽に、前記排出手段により排出される液体を濾過するためのスクリーンと、該スクリーンのリサイクル槽内に面する面を遮蔽可能な遮蔽手段が設けられてなることを特徴とする請求項1乃至3いずれかに記載の浄化槽汚泥処理車。   The screen for filtering the liquid discharged | emitted by the said discharge means and the shielding means which can shield the surface which faces the inside of the recycling tank of the said screen are provided in the said recycling tank. The septic tank sludge processing vehicle in any one of thru | or 3.
JP2004326836A 2004-11-10 2004-11-10 Septic tank sludge treatment vehicle Active JP4520279B2 (en)

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JP2008018318A (en) * 2006-07-12 2008-01-31 Shin Meiwa Ind Co Ltd Sludge thickener and sludge thickening vehicle equipped with it
JP2008229446A (en) * 2007-03-19 2008-10-02 Shin Meiwa Ind Co Ltd Sludge thickening apparatus and vehicle
JP2009066587A (en) * 2007-08-20 2009-04-02 Shin Meiwa Ind Co Ltd Apparatus and vehicle for concentrating sludge
JP2009082767A (en) * 2007-09-27 2009-04-23 Shin Meiwa Ind Co Ltd Apparatus and vehicle for concentrating sludge
JP2011005370A (en) * 2009-06-23 2011-01-13 Kanematsu Engineering Kk Vehicle for treatment of septic tank sludge
US11780757B2 (en) 2017-06-21 2023-10-10 Biovac Solutions Inc. Apparatus and methods for dewatering sludge

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CN105729003B (en) * 2016-05-10 2017-09-19 江苏天明特种车辆有限公司 Tank truck intelligently fills in tank resistance wave plate propulsion plant

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008018318A (en) * 2006-07-12 2008-01-31 Shin Meiwa Ind Co Ltd Sludge thickener and sludge thickening vehicle equipped with it
JP2008229446A (en) * 2007-03-19 2008-10-02 Shin Meiwa Ind Co Ltd Sludge thickening apparatus and vehicle
JP2009066587A (en) * 2007-08-20 2009-04-02 Shin Meiwa Ind Co Ltd Apparatus and vehicle for concentrating sludge
JP2009082767A (en) * 2007-09-27 2009-04-23 Shin Meiwa Ind Co Ltd Apparatus and vehicle for concentrating sludge
JP2011005370A (en) * 2009-06-23 2011-01-13 Kanematsu Engineering Kk Vehicle for treatment of septic tank sludge
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US11780757B2 (en) 2017-06-21 2023-10-10 Biovac Solutions Inc. Apparatus and methods for dewatering sludge

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