JP3474272B2 - Automatic sediment removal equipment - Google Patents
Automatic sediment removal equipmentInfo
- Publication number
- JP3474272B2 JP3474272B2 JP19465594A JP19465594A JP3474272B2 JP 3474272 B2 JP3474272 B2 JP 3474272B2 JP 19465594 A JP19465594 A JP 19465594A JP 19465594 A JP19465594 A JP 19465594A JP 3474272 B2 JP3474272 B2 JP 3474272B2
- Authority
- JP
- Japan
- Prior art keywords
- sand
- settling
- tank
- water
- valve
- 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 - Fee Related
Links
Description
【０００１】[0001]
【産業上の利用分野】本発明は、沈降性の粒状固体を懸
濁した液体から分離した固体を効率的に輸送するための
装置、例えばし尿あるいは浄化槽汚泥中に含まれる砂
（土砂類および金属性沈降物）を除去するための沈砂槽
から自動的に沈砂を効率的に除去するための装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for efficiently transporting a solid separated from a liquid in which a sedimentable granular solid is suspended, for example, human waste or sand (sediment and metal) contained in septic tank sludge. Apparatus for automatically and efficiently removing sand from a sand settling tank for removing the sediment.
【０００２】[0002]
【従来の技術】し尿処理場においては、し尿および浄化
槽汚泥を処理して、河川に放流可能な程度に清澄な処理
水にすることが要請される。これらの処理過程におい
て、し尿や浄化槽汚泥等の中に含まれる砂を除去するこ
とが必要である。このためし尿処理装置等においては、
受入槽の前に沈砂槽を設け、砂等の沈降性固体粒子を分
離し、液状物を受入槽へ送る様にしている。沈砂槽で沈
降、分離された砂等は、間欠的に沈砂槽から除去するこ
とが必要であるが、これは真空ポンプにより水と共に沈
砂を吸揚げる方式が主として採用される。この作業は悪
臭やきたないものを取扱う作業であり、危険を伴うもの
であるので自動化が望まれているが、固定パイプで吸引
を行う方式では、パイプの吸引口が砂等で埋まると吸引
が不可能となり、また固定パイプであるためパイプ近傍
の砂等しか吸引できない等問題があるため、従来はフレ
キシブルホースを人手により操作し、吸引口が砂等で埋
まるとフレキシブルホースを砂等の面より引上げ水を吸
引させることで砂の詰まりを解消し、また沈砂槽の砂等
の溜っているところを探してホースを移動させ砂等を吸
引させ、砂等の吸揚げる量を人手でコントロールしてい
るのが現状であるが、週に一回程度の作業とはいえ、運
転員の作業負担度が高く、し尿処理場では嫌われる作業
の一つとなっている。2. Description of the Related Art In a human waste treatment plant, it is required to treat human waste and sludge in a septic tank so that the treated water is clear enough to be discharged into a river. In these treatment processes, it is necessary to remove sand contained in human waste and septic tank sludge. Therefore, in the human waste treatment device, etc.,
A sand settling tank is provided in front of the receiving tank to separate sedimentable solid particles such as sand, and the liquid material is sent to the receiving tank. It is necessary to intermittently remove the sand and the like settled and separated in the sand settling tank from the sand settling tank, but this is mainly adopted by a method in which a vacuum pump sucks up the settling sand together with water. Since this work involves handling bad odors and messy items, and is dangerous, automation is desired, but with the method of suctioning with a fixed pipe, suction is not possible if the suction port of the pipe is filled with sand or the like. Since it is impossible, and since it is a fixed pipe, there is a problem that only sand etc. near the pipe can be sucked, so conventionally, when the flexible hose was manually operated and the suction port was filled with sand etc. The suction water is sucked to clear the clogging of sand, and the hose is moved by moving the hose by searching the place where the sand etc. is accumulating, and the amount of sand suctioned is manually controlled. Although it is the present situation, the work burden on the operator is high even though the work is performed once a week, and it is one of the work that is disliked at the human waste treatment plant.
【０００３】[0003]
【発明が解決しようとする課題】本発明は沈砂槽に沈積
する砂等を、人手による操作によることなく固定吸引配
管を用い、閉塞の危険がなくかつ砂除去率の高い沈砂自
動除去装置の開発を目的とする。DISCLOSURE OF THE INVENTION The present invention uses a fixed suction pipe for the sand or the like settled in the sand settling tank without the need for manual operation, and develops an automatic sand settling device with a high sand removal rate without the risk of blockage. With the goal.
【０００４】[0004]
【課題を解決するための手段】本発明は、
［１］ (a)沈砂を沈砂吸引口に移動させるための圧力
水噴射装置を備えた沈砂槽、 (b)排水弁およびベントバ
ルブを備えた沈砂洗浄タンク、 (c)前記沈砂槽底部近傍
に先端部がベルマウス形状の沈砂吸引口を有し、中間に
空気および／または水供給口を備え、沈砂洗浄タンクへ
沈砂スラリーを輸送する固定吸引配管および (d)沈砂洗
浄タンクを減圧にするための真空ポンプからなる沈砂自
動除去洗浄装置、
［２］ 真空ポンプを起動して砂洗浄タンクを所定の減
圧度に到達した後、圧力水噴射装置から水を噴射し、沈
砂槽砂出弁を開き、水−沈砂を沈砂洗浄タンクに吸引し
た後圧力水噴射装置を閉じ、空気弁及び／または水供給
弁を開いて固定吸引配管中に沈積した砂を沈砂洗浄タン
クに追い出すことからなることを特徴とする沈砂槽から
沈砂の除去方法、及び
［３］ 沈砂吸引口が沈砂で埋まったときに、固定吸引
配管に設けた水供給弁から加圧水を沈砂槽に噴出し、沈
砂吸引口を露出させ、沈砂洗浄タンクに水−沈砂を吸引
可能とする上記［２］に記載の沈砂槽から沈砂の除去方
法、を開発することにより上記の課題を解決した。Means for Solving the Problems [1] The present invention comprises [1] (a) a sand settling tank equipped with a pressure water jetting device for moving sand settling to a sand settling suction port, and (b) a drainage valve and a vent valve. Sand settling tank, (c) a fixed mouth that has a bell mouth-shaped sand settling port near the bottom of the sand settling tank and an air and / or water supply port in the middle to transport the settling slurry to the sand settling tank A pipe and (d) an automatic sand removal and cleaning device consisting of a vacuum pump for reducing the pressure of the sand cleaning tank, [2] a pressure water injection device after the vacuum pump is started and the sand cleaning tank has reached a predetermined decompression degree. Water was sprayed from the water, the sand settling valve was opened, the water-sand settling was sucked into the sand settling tank, the pressure water jetting device was closed, and the air valve and / or the water supply valve were opened to deposit in the fixed suction pipe. From expelling the sand into the sediment wash tank The method of removing sand from the sand settling tank, and [3] when the sand settling inlet is filled with sand settling, pressurized water is jetted to the sand settling tank from the water supply valve provided in the fixed suction pipe, and the sand settling inlet is set. The above problem was solved by developing a method for removing sand from a sand settling tank according to the above [2], which exposes the water and makes it possible to suck water-sand settling into a sand settling cleaning tank.
【０００５】通常し尿処理装置等の沈砂槽は、１週間に
１回清掃することを標準にしてその容量を定められてい
るが、本発明の沈砂自動除去装置は人手をわずらわさず
に自動運転が可能であり、その頻度を従来より高くする
ことが容易であるので容量的にはもう少し小さくするこ
とも可能である。[0005] Normally, the sand settling tank of a human waste treatment device and the like is set to have a standard capacity of cleaning once a week, but the automatic sand settling device of the present invention does not require manual labor. Automatic operation is possible, and it is easy to increase the frequency more than before, so it is possible to make the capacity a little smaller.
【０００６】以下図面を用いて具体的に説明する。図１
は沈砂自動除去洗浄装置を示す全体のフローシートの一
例であり、図２は沈砂槽の底部の断面図の一例である。
沈砂槽１は壁の周辺に下向きの複数の圧力水噴射ノズル
２２を備えた圧力水配管２１を囲繞し、そのほぼ中央部
（圧力水噴射ノズル２２の配置によっては別の場所でも
よい。）底部近傍にベルマウス形状の沈砂吸引口４を有
する固定吸引配管７が設けられている。ベルマウス形状
とは、配管の太さより拡がった形状であって、つり鐘
型、ラッパ型、朝顔型などの形状を指している。ベルマ
ウス形状とすることにより沈砂を広い範囲に有効に吸引
できるだけでなく、沈砂の堆積による閉塞の危険度も大
巾に低下できる。なお圧力水噴射により沈砂を有効に吸
引口近辺に集めるには、図２に示す様に沈砂槽の周辺底
部が中央部に向け傾斜させておくことが有効である。A detailed description will be given below with reference to the drawings. Figure 1
2 is an example of an entire flow sheet showing the automatic sand removing and cleaning apparatus, and FIG. 2 is an example of a sectional view of the bottom of the sand settling tank.
The sand settling tank 1 encloses a pressure water pipe 21 having a plurality of downwardly directed pressure water injection nozzles 22 around the wall, and a substantially central portion (it may be another place depending on the arrangement of the pressure water injection nozzles 22) bottom portion. A fixed suction pipe 7 having a bellmouth-shaped sand settling suction port 4 is provided in the vicinity. The bell mouth shape is a shape that is wider than the thickness of the pipe, and means a bell shape, a trumpet shape, a morning glory shape, or the like. The bellmouth shape can not only effectively suck sediment in a wide range, but also can significantly reduce the risk of blockage due to sediment accumulation. In order to effectively collect the sand by the pressure water jet in the vicinity of the suction port, it is effective to incline the bottom of the sand basin toward the center as shown in FIG.
【０００７】真空ポンプ１３により減圧して沈砂懸濁水
を受入れる沈砂洗浄タンク８は、沈砂槽１との間を先端
に沈砂吸引口４を備えた固定吸引配管７で連結されてい
る。固定吸引配管７は中間に沈砂槽砂出弁５、空気弁お
よび／または水供給弁（以下、特にことわらない限り空
気弁という。）６を備えることが好ましい。沈砂洗浄タ
ンク８は、し尿受入槽又は廃水処理装置へ余剰水を排出
するための排水弁９、タンク内の圧力を戻すためのベン
トバルブ１０、タンク中の圧力を示す圧力計１１、液面
計１２、タンク内を減圧にするための真空ポンプ１３、
吸引した沈砂を洗浄するための洗浄水弁１４、洗浄水と
沈砂を撹拌するための撹拌空気弁１５が設けられてお
り、該砂洗浄タンクを強く減圧することにより沈砂槽１
から水と共に沈砂を沈砂洗浄タンク８へ吸引することに
なる。A sand settling washing tank 8 that receives the sand settling water after being decompressed by a vacuum pump 13 is connected to the sand settling tank 1 by a fixed suction pipe 7 having a sand settling suction port 4 at its tip. The fixed suction pipe 7 is preferably provided with a sand settling tank sand out valve 5, an air valve and / or a water supply valve (hereinafter referred to as an air valve) 6 in the middle. The settling washing tank 8 includes a drain valve 9 for discharging excess water to a night soil receiving tank or a waste water treatment device, a vent valve 10 for returning the pressure in the tank, a pressure gauge 11 for indicating the pressure in the tank, and a liquid level gauge. 12, a vacuum pump 13 for reducing the pressure in the tank,
A washing water valve 14 for washing the sucked sand and a stirring air valve 15 for stirring the washing water and the sand are provided, and the sand washing tank 1 is strongly depressurized.
From this, the settling sand is sucked into the settling washing tank 8 together with the water.
【０００８】沈砂の量が少ないときはあまり問題がない
が、この量が多くなると、吸引口のベルマウス部が沈砂
により閉塞する危険があり、また沈砂槽１から沈砂洗浄
タンク８までの距離が短いときはあまり問題がないが、
これが長くなると、どうしても配管中に砂が沈降し閉鎖
する危険が増大するので固定吸引配管７の途中に、でき
れば沈砂槽１の立上り部分の沈砂槽砂出弁５の上部に空
気弁６および／またはその下部に空気弁１６あるいは図
示していないが空気弁６と沈砂洗浄タンク８の間に閉鎖
用弁を設けておくことが好ましい。これは操作の初めに
沈砂槽砂出弁５を閉じ、空気弁１６を開き、空気または
水をベルマウス部より噴出させることで、ベルマウス部
の沈砂による閉塞を解消し、続いて空気弁１６を閉じ沈
砂槽砂出弁５を開くことにより操作をスムーズに開始で
きる。あるいは空気弁６と沈砂洗浄タンク８の間の閉鎖
用弁を用い、同様の操作を行ってもよい。そして操作の
中間において空気弁６を開き、配管中に空気を通すこと
により配管中の沈砂を流し出すことができる。またこの
空気弁６を開くことにより固定吸引配管７の立上がり部
分の水−砂スラリーを逆流させつまりを解消させてもよ
い。あるいは空気弁６に代え、水供給パイプを連結して
もよく、場合によってはそれと組合せて水供給パイプを
連結することも好ましい態様である。水供給パイプと連
結したときは、沈砂吸引口が砂等で埋まったときここか
ら加圧水を沈砂槽１に噴出し、沈砂吸引口４の一部を露
出させ、沈砂洗浄タンク８に水を吸引可能とすることで
沈砂除去操作を簡単に開始させることができる。When the amount of settling sand is small, there is not much problem, but when this amount is large, there is a risk that the bell mouth of the suction port may be blocked by the settling, and the distance from the settling tank 1 to the settling washing tank 8 may be reduced. When it is short, there is not much problem, but
If this lengthens, the risk of sand settling and closing in the pipes inevitably increases. Therefore, an air valve 6 and / or an air valve 6 and / or an air valve 6 may be provided in the middle of the fixed suction pipe 7, if possible, on the rising part of the sand settling tank 1. It is preferable to provide a closing valve below the air valve 16 or between the air valve 6 and the sand settling tank 8 (not shown). At the beginning of the operation, the sand basin sand discharge valve 5 is closed, the air valve 16 is opened, and air or water is ejected from the bell mouth portion to eliminate the blockage of the bell mouth portion due to the sedimentation, and then the air valve 16 The operation can be started smoothly by closing and closing the sand settling tank sand discharge valve 5. Alternatively, the same operation may be performed by using a closing valve between the air valve 6 and the sand settling tank 8. Then, in the middle of the operation, the air valve 6 is opened and the air is passed through the pipe, so that the sediment in the pipe can be discharged. Further, by opening the air valve 6, the water-sand slurry in the rising portion of the fixed suction pipe 7 may be backflowed to eliminate the clogging. Alternatively, instead of the air valve 6, a water supply pipe may be connected, and depending on the case, it is also a preferable embodiment to connect the water supply pipe. When connected to a water supply pipe, when the sand settling port is filled with sand etc., pressurized water is spouted from here to the sand settling port 1 to expose part of the sand settling port 4 and the water can be sucked into the settling washing tank 8. By doing so, the sand removal operation can be started easily.
【０００９】装置の仕様は、処理量、砂等沈降性粒状固
体含有量、沈砂除去頻度などにより大きく変るが、一般
論として吸引配管は８０〜１２５ｍｍφ、ベルマウス吸
引口の口径１５０〜４００ｍｍφ、沈砂槽底部からの吸
引口の高さ８０〜３００ｍｍ位であれば吸引はうまくで
きる。圧力水の圧力は１ｋｇ／ｃｍ2 以上、好ましくは
３ｋｇ／ｃｍ2 位である。真空ポンプは砂洗浄タンクを
大気圧から６００ｍｍＨｇ（水銀柱１６０ｍｍＨｇ）程
度以上、好ましくは６５０ｍｍＨｇ以上減圧にできる能
力が必要である。本沈砂自動除去装置は、各装置をシー
クエンシャルにタイマーを組込むことにより、自動的に
沈砂除去操作ができるので、効率の最もよい頻度でこれ
を行えばよい。The specifications of the apparatus vary greatly depending on the treatment amount, the content of sedimentable granular solids such as sand, the frequency of sand removal, etc., but as a general theory, the suction pipe has a diameter of 80 to 125 mm, the bellmouth suction port has a diameter of 150 to 400 mm, and sand is deposited. Suction can be successfully performed if the height of the suction port from the bottom of the tank is about 80 to 300 mm. The pressure of the pressurized water is 1 kg / cm 2 or more, preferably about 3 kg / cm 2 . The vacuum pump is required to have the ability to depressurize the sand cleaning tank from atmospheric pressure to about 600 mmHg (160 mmHg of mercury column) or more, preferably 650 mmHg or more. This automatic sand settling device can automatically perform the sand settling operation by incorporating a timer into each device in a sequential manner. Therefore, this can be performed at the most efficient frequency.
【００１０】以下に操作の一例を示す。真空ポンプ１３
を起動し、沈砂洗浄タンク８が所定の減圧度（例えば−
６５０ｍｍＨｇ程度）に達するのを待ち、圧力水バルブ
３を開き、沈砂槽１に水を噴射する。一定時間後（例え
ば１５秒後）沈砂槽砂出弁５を開き、水−沈砂を沈砂洗
浄タンク８に吸引する。沈砂洗浄タンクの減圧度が所定
の減圧度（例えば−５００ｍｍＨｇ程度）に達したと
き、あるいは一定時間後（例えば３０秒経過後）、圧力
水バルブ３を閉じ空気弁６を開き、空気弁６より沈砂槽
１の間の部分は沈砂槽へ、空気弁６より沈砂洗浄タンク
８の間の固定吸引配管７中に沈積した砂等は沈砂洗浄タ
ンク８に追出す。あるいは空気に代えて加圧水を噴入さ
せるか両者を併用してもよい。An example of the operation will be shown below. Vacuum pump 13
Is started, and the sand washing tank 8 is operated at a predetermined decompression degree (for example, −
650 mmHg), the pressure water valve 3 is opened, and water is injected into the sand settling tank 1. After a certain time (for example, 15 seconds), the sand settling tank sand discharge valve 5 is opened, and the water-sand settled is sucked into the settling washing tank 8. When the decompression degree of the sedimentation washing tank reaches a predetermined decompression degree (for example, about -500 mmHg) or after a certain time (for example, after 30 seconds), the pressure water valve 3 is closed and the air valve 6 is opened. The part between the sand settling tanks 1 is expelled to the sand settling tanks, and the sand and the like deposited in the fixed suction pipe 7 between the sand settling tanks 8 is expelled to the sand settling tanks 8 by the air valve 6. Alternatively, pressurized water may be injected instead of air, or both may be used in combination.
【００１１】この結果、沈砂洗浄タンク８は急激に減圧
度を低下させるので沈砂槽砂出弁５および空気弁６を閉
じ、沈砂洗浄タンク８の減圧度が所定の減圧度（例えば
−６５０ｍｍＨｇ）に達するのを待ち、初めの圧力水バ
ルブ３を開くところに戻り、同じ操作を繰り返す。沈砂
洗浄タンク８の液面が所定のレベルに到達したとき真空
ポンプ１３を停止し、ベントバルブ１０を開き、沈砂洗
浄タンク８を大気圧に戻し、排水弁９を開き沈砂洗浄タ
ンク８内の水をし尿受入槽又は廃水処理装置に送出す
る。次に洗浄タンク排水弁９およびベントバルブ１０を
閉じ、初めの真空ポンプ１３を起動する操作に戻り同じ
操作を繰り返す。As a result, the degree of depressurization of the sand settling tank 8 rapidly decreases, so the sand settling tank sand discharge valve 5 and the air valve 6 are closed, and the degree of depressurization of the sand settling tank 8 becomes a predetermined depressurization degree (for example, -650 mmHg). Wait until it reaches, return to the first opening of the pressure water valve 3 and repeat the same operation. When the liquid level of the sand washing tank 8 reaches a predetermined level, the vacuum pump 13 is stopped, the vent valve 10 is opened, the sand washing tank 8 is returned to atmospheric pressure, the drain valve 9 is opened, and the water in the sand washing tank 8 is opened. And send it to a urine receiving tank or a wastewater treatment device. Next, the washing tank drain valve 9 and the vent valve 10 are closed, and the operation is returned to the initial operation of starting the vacuum pump 13 and the same operation is repeated.
【００１２】この操作を所定回数行った後（砂の量によ
り回数は異なるが通常２〜３回）、沈砂洗浄タンク８内
の砂の自動洗浄を行う。まずベントバルブ１０を開き、
洗浄タンク洗浄水弁１４を開き水面が一定の高さになる
様に給水する。洗浄水弁１４を閉じ、撹拌空気弁１５を
開き、一定時間空気を吹込むことにより撹拌を行い、撹
拌空気弁１５を閉じ、粒状固体の沈降する時間静置して
から洗浄タンク排水弁９を開き洗浄水を排出する。この
操作を必要回数繰り返して砂に付着している有機物をで
きるだけ洗浄除去する。この洗浄が終った後洗浄タンク
のマンホール等を開け砂を取出すことになる。After performing this operation a predetermined number of times (the number of times is different depending on the amount of sand, it is usually 2 to 3 times), and then the sand in the settling washing tank 8 is automatically washed. First open the vent valve 10,
The washing tank washing water valve 14 is opened to supply water so that the water surface has a constant height. The washing water valve 14 is closed, the agitation air valve 15 is opened, and agitation is performed by blowing air for a certain period of time. The agitation air valve 15 is closed, and the washing tank drain valve 9 is allowed to stand for a while until the granular solids settle. Open and drain the wash water. This operation is repeated as many times as necessary to remove the organic substances adhering to the sand by washing as much as possible. After this cleaning is completed, the manhole of the cleaning tank is opened and the sand is removed.
【００１３】[0013]
【作用】本発明の沈砂自動除去装置は、沈砂槽内部の周
辺に圧力水噴射装置を設け、圧力水噴射により砂等が集
まる沈砂槽底部近傍にベルマウス形状の沈砂吸引口を有
する固定吸引配管を設けたものである。沈砂は沈砂槽の
底部全面に沈積するが、そのままでは沈砂吸引口は固定
されているため効率的に沈砂の効率的な除去は不可能で
あった。The automatic sand settling device of the present invention is provided with a pressure water injection device around the inside of the sand settling device, and a fixed suction pipe having a bellmouth-shaped sand settling suction port in the vicinity of the bottom of the sand settling device where sand and the like gather by the pressure water injection. Is provided. The sand settles on the entire bottom of the sand settling tank, but it was not possible to remove the sand settling efficiently because the sand settling suction port was fixed.
【００１４】本発明は沈砂吸引口を固定しておき、圧力
水を噴射して沈砂を沈砂吸引口近辺に移動させることに
より、これを可能としたため自動化することができた。
さらに沈砂吸引口が砂等により埋没したり、固定吸引配
管中に砂等が沈積すると、沈砂洗浄タンクの減圧度をい
くら高めても水を吸引できずに操業不能になる危険が多
い。According to the present invention, since the sand settling suction port is fixed, and the settling water is jetted to move the sand settling to the vicinity of the sand settling suction port, this can be done, so that it can be automated.
Further, if the sand settling suction port is buried by sand or the like, or if sand or the like is settled in the fixed suction pipe, there is a danger that water cannot be sucked and operation becomes impossible no matter how high the depressurization degree of the sand settling tank is increased.
【００１５】かかる場合には、空気弁および／または水
供給弁より沈砂槽あるいは沈砂洗浄タンクに向けて空気
および／または水を噴射することにより閉塞の問題は回
避できる。特に沈砂吸引口をベルマウス形状にしてある
ので埋没に対して抵抗力が大幅に向上しているが、完全
に解決しているわけではないので安全のためには空気弁
および／または水供給弁を設けることが必要である。In such a case, the problem of blockage can be avoided by injecting air and / or water from the air valve and / or the water supply valve toward the sand settling tank or the sand settling tank. In particular, the bell-mouth shape of the sand sediment suction port greatly improves the resistance to burial, but this has not been completely solved, so for safety, an air valve and / or a water supply valve It is necessary to provide.
【００１６】本発明のこの形式は、吸引による沈砂除去
だけでなく、サンドポンプにより沈砂を除去する場合に
も有効に使用可能であり、この場合の空気弁または水供
給弁から供給する圧力はサンドポンプ作動時であっても
空気または水が固定配管に圧入できるだけの圧力が欲し
い。水は大抵加圧されているが、空気は沈砂洗浄タンク
撹拌用の加圧された空気等を用いることが有利である。This type of the present invention can be effectively used not only for removing sand by suction, but also for removing sand by a sand pump. In this case, the pressure supplied from the air valve or water supply valve is sand. I want a pressure that allows air or water to be pressed into the fixed piping even when the pump is operating. Although water is usually pressurized, it is advantageous to use pressurized air or the like for stirring a sand settling tank as the air.
【００１７】[0017]
【発明の効果】本発明は粒状固体を懸濁した液体から沈
降槽を用いて分離した固体を効率よく自動的に沈降槽か
ら除去するための装置であり、広範囲な分野に適用でき
るが、特にし尿処理装置等の悪臭や危険の多い処理品の
装置における沈砂槽に沈積する砂等を人手を全く使わず
に自動的に除去するのに有効な装置である。INDUSTRIAL APPLICABILITY The present invention is an apparatus for efficiently and automatically removing solids separated from a liquid in which granular solids are suspended using a sedimentation tank from the sedimentation tank, and is applicable to a wide range of fields. It is an effective device for automatically removing sand and the like deposited in the sand settling tank in an apparatus for treating odors such as a human waste treatment apparatus and having a high risk of danger, without using any human hands.
【００１８】本発明のベルマウス形状の吸引口は固定し
ているが、圧力水噴射により沈砂槽全体の沈砂を有効に
吸引除去できるだけでなく、沈砂の堆積、配管中の沈砂
の沈積などによる閉塞も固定吸引配管に設けた空気弁、
水供給弁から空気または水を注入することにより完全に
排除できる。また、本沈砂自動除去装置に沈砂洗浄タン
クを組込むことにより、除去分離した沈砂は自動的に洗
浄され取出すことが可能となる。Although the bellmouth-shaped suction port of the present invention is fixed, not only can the sand in the whole sand settling tank be effectively sucked and removed by the injection of pressure water, but also clogging due to sedimentation of sand, sedimentation of sand in the piping, etc. Also an air valve installed in the fixed suction pipe,
It can be completely eliminated by injecting air or water from the water supply valve. Further, by incorporating a sand washing tank into the automatic sand removing device, the removed and separated sand can be automatically washed and taken out.
【図１】本発明の沈砂自動除去洗浄装置のフローシート
である。FIG. 1 is a flow sheet of the apparatus for automatically removing sand according to the present invention.
【図２】本発明の沈砂槽の断面図である。FIG. 2 is a sectional view of the sand settling tank of the present invention.
１ 沈砂槽 ２１ 圧力水配管 ２２ 圧力水噴射ノズル ３ 圧力水バルブ ４ 沈砂吸引口 ５ 沈砂槽砂出弁 ６ 空気弁または水供給弁 ７ 固定吸引配管 ８ 沈砂洗浄タンク ９ 排水弁 １０ ベントバルブ １１ 圧力計 １２ 液面計 １３ 真空ポンプ １４ 洗浄水弁 １５ 撹拌空気弁 １６ 空気弁 1 sand set 21 Pressure water piping 22 Pressure water jet nozzle 3 pressure water valve 4 Settling suction port 5 Sand settling valve 6 Air valve or water supply valve 7 Fixed suction pipe 8 sand settling tank 9 drain valve 10 Vent valve 11 pressure gauge 12 Level gauge 13 Vacuum pump 14 Wash water valve 15 Stirring air valve 16 air valve
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭52−4653（ＪＰ，Ａ) 実開 昭57−184712（ＪＰ，Ｕ) 実開 昭56−129805（ＪＰ，Ｕ) 実開 昭59−119305（ＪＰ，Ｕ) 実開 昭62−144504（ＪＰ，Ｕ) 実公 昭44−4608（ＪＰ，Ｙ１) (58)調査した分野(Int.Cl.7，ＤＢ名) B01D 21/00 - 21/34 C02F 11/00 - 11/20 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-52-4653 (JP, A) real-open Sho-57-184712 (JP, U) real-open Sho-56-129805 (JP, U) real-open Sho-59- 119305 (JP, U) Actual development Sho 62-144504 (JP, U) Actual public 44-4608 (JP, Y1) (58) Fields investigated (Int.Cl. 7 , DB name) B01D 21/00-21 / 34 C02F 11/00-11/20
Claims (3)
の圧力水噴射装置を備えた沈砂槽、 (b)排水弁およびベ
ントバルブを備えた沈砂洗浄タンク、 (c)前記沈砂槽底
部近傍に先端部がベルマウス形状の沈砂吸引口を有し、
中間に空気および／または水供給口を備え、沈砂洗浄タ
ンクへ沈砂スラリーを輸送する固定吸引配管および (d)
沈砂洗浄タンクを減圧にするための真空ポンプからなる
沈砂自動除去洗浄装置。1. (a) To move the settling sand to the settling sand suction port
Has a sand bath with a pressure water injection system, a (b) drain valve and sand washing tank with a vent valve, (c) settling the suction port of the sand settling tank bottom tip vicinity bell mouth shape,
A fixed suction pipe with an air and / or water supply port in the middle for transporting the sand settling slurry to the settling sand cleaning tank, and (d)
Automatic sand removal and cleaning device consisting of a vacuum pump for reducing the pressure in the sand cleaning tank.
定の減圧度に到達した後、圧力水噴射装置から水を噴射After reaching a certain degree of pressure reduction, water is injected from the pressure water injection device.
し、沈砂槽砂出弁を開き、水−沈砂を沈砂洗浄タンクにThe sand settling tank sand opening valve to open the water-sand settling tank.
吸引した後圧力水噴射装置を閉じ、空気弁及び／またはAfter suctioning, the pressure water injection device is closed, and the air valve and / or
水供給弁を開いて固定吸引配管中に沈積した砂を沈砂洗Open the water supply valve to wash the sand accumulated in the fixed suction pipe.
浄タンクに追い出すことからなることを特徴とする沈砂Settling characterized by being driven out to a clean tank
槽から沈砂の除去方法。How to remove sand from the tank.
定吸引配管に設けた水供給弁から加圧水を沈砂槽に噴出Pressurized water is ejected to the sand settling tank from the water supply valve provided in the constant suction pipe.
し、沈砂吸引口を露出させ、沈砂洗浄タンクに水−沈砂To expose the sand settling suction port and put water-sand settling in the sand settling tank.
を吸引可能とする請求項２に記載の沈砂槽から沈砂の除Removal of sand from the sand settling tank according to claim 2
去方法。How to leave.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19465594A JP3474272B2 (en) | 1994-07-27 | 1994-07-27 | Automatic sediment removal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19465594A JP3474272B2 (en) | 1994-07-27 | 1994-07-27 | Automatic sediment removal equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0838811A JPH0838811A (en) | 1996-02-13 |
| JP3474272B2 true JP3474272B2 (en) | 2003-12-08 |
Family
ID=16328123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19465594A Expired - Fee Related JP3474272B2 (en) | 1994-07-27 | 1994-07-27 | Automatic sediment removal equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3474272B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100358325B1 (en) * | 1999-10-04 | 2002-10-25 | 박찬우 | A filter sand exchange device for clean water reservoir |
| JP2005193127A (en) * | 2004-01-06 | 2005-07-21 | Mitsubishi Rayon Co Ltd | Method for withdrawing solid catalyst and reaction equipment for solid catalyst |
| JP2006095401A (en) * | 2004-09-29 | 2006-04-13 | Sanki Eng Co Ltd | Screen residue treatment device |
| JP4869908B2 (en) * | 2006-12-25 | 2012-02-08 | 株式会社タクマ | Settlement cleaning equipment and settling method |
| JP4803818B2 (en) * | 2007-01-11 | 2011-10-26 | 株式会社タクマ | Sedimentation treatment equipment and sedimentation treatment method |
| CN109695444B (en) * | 2019-02-03 | 2024-02-27 | 四川乐山伟业机电有限责任公司 | Duplex sand remover |
-
1994
- 1994-07-27 JP JP19465594A patent/JP3474272B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0838811A (en) | 1996-02-13 |
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