JPS594798Y2 - Sludge freeze-thaw treatment tank - Google Patents
Sludge freeze-thaw treatment tankInfo
- Publication number
- JPS594798Y2 JPS594798Y2 JP16686778U JP16686778U JPS594798Y2 JP S594798 Y2 JPS594798 Y2 JP S594798Y2 JP 16686778 U JP16686778 U JP 16686778U JP 16686778 U JP16686778 U JP 16686778U JP S594798 Y2 JPS594798 Y2 JP S594798Y2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- tank body
- tank
- valve plate
- treatment tank
- 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
Links
Landscapes
- Treatment Of Sludge (AREA)
Description
【考案の詳細な説明】
本考案は、汚泥の凍結融解処理に用いられる凍結融解槽
の改良にかかるものである。[Detailed Description of the Invention] The present invention relates to an improvement of a freeze-thaw tank used for freeze-thaw treatment of sludge.
浄水場より発生する排水、コロイド状の工業廃水等には
難脱水性の汚泥が含有され、この種汚泥水の脱水処理に
は凍結融解法が効果的である。Drainage water generated from water treatment plants, colloidal industrial wastewater, etc. contain sludge that is difficult to dewater, and the freeze-thaw method is effective for dehydrating this type of sludge water.
汚泥水の凍結融解処理を行なう凍結融解槽は、第1図に
示すように槽の上部に被処理汚泥水の注水管1および洗
浄水注水管2等を臨ませ、最下底面3の一部に処理汚泥
水の排出用開口4を有し、内面を所要の厚さの断熱材層
5で内張すした槽本体6と、一組のヘッダー71.72
間を連通ずるとともに上下に蛇行して槽本体6の断面内
部輪郭に合致する如く配設された多数の同一形状の蛇管
8、。As shown in Fig. 1, the freeze-thaw tank that performs the freeze-thaw treatment of sludge water has a water injection pipe 1 for treated sludge water, a washing water injection pipe 2, etc. facing the top of the tank, and a part of the lowest bottom surface 3. A tank body 6 having an opening 4 for discharging treated sludge water and whose inner surface is lined with a heat insulating layer 5 of a required thickness, and a pair of headers 71 and 72.
A large number of flexible pipes 8 having the same shape are arranged to communicate with each other and meander up and down to match the cross-sectional internal contour of the tank body 6.
82・・・・・・8nからなるブライン用蛇管群8と前
記排出用開口4の個所で槽本体6に取付けられた開閉弁
9とを備えてなるものであり、処理槽に容れられた被処
理汚泥水は槽容量にもよるが2乃至3時間のサイクルで
バッチ処理される。82...8n, and an on-off valve 9 attached to the tank body 6 at the discharge opening 4. The treated sludge water is batch treated in cycles of 2 to 3 hours, depending on the tank capacity.
すなわち、被処理汚泥水は蛇管群8に冷却ブラインを通
すことによって凍結され、続いて加温ブラインを通すこ
とによって融解され処理汚泥水となり、開閉弁9を開弁
じて次工程へ送られる。That is, the sludge water to be treated is frozen by passing cooling brine through the group of corrugated pipes 8, and then thawed by passing through the heating brine to become treated sludge water, which is then sent to the next process by opening the on-off valve 9.
処理汚泥水はその汚泥成分が造粒改質されて砂状となる
ので、これを第4図に示すような濾布22を設けた受槽
23に導き真空ユニット24で吸引する真空脱水機21
により簡単に脱水することができる。The sludge components of the treated sludge water are granulated and reformed to become sand-like, so the vacuum dehydrator 21 guides the water to a receiving tank 23 equipped with a filter cloth 22 as shown in FIG. 4 and sucks it with a vacuum unit 24.
It can be easily dehydrated.
処理汚泥水を排出するための開閉弁9としてはノンク機
構を介してエアシリンダによって開閉作動する片開き或
は観音開きの開閉蓋弁があげられるが、この方式では機
構上の制約のため開閉蓋上に汚泥が堆積した洗浄不良を
生ずるほか、リンク機構およびエアシリンダを含む排出
用開口4近傍の諸機器が汚泥水によって汚染されメンテ
ナンス上の不利を招くなどの欠点を有する。The opening/closing valve 9 for discharging treated sludge water may be a single-opening or double-opening lid valve that is opened and closed by an air cylinder via a non-closing mechanism. In addition to causing poor cleaning due to the accumulation of sludge, various devices in the vicinity of the discharge opening 4, including the link mechanism and the air cylinder, are contaminated by the sludge water, resulting in disadvantages in terms of maintenance.
また開閉弁9として、ボール弁やスライド弁を使用すれ
ば罰記開閉蓋弁の欠点は除かれるが、例えば通常のスラ
イド弁を用いた場合、第2図に示す如く弁ケース12に
接続管部16があるため、弁板13の閉鎖面14と槽本
体6の最下底面3との間に、所定の処理サイクル時間内
に蛇管群8の凍結作用が及ばない部分10ができこの部
分での被処理汚泥水は未凍結部分となり、難脱水性のも
のであるため次工程の真空脱水操作において大きな障害
となるのである。Furthermore, if a ball valve or a slide valve is used as the on-off valve 9, the drawbacks of a closed-off lid valve can be eliminated; however, if a normal slide valve is used, for example, the connecting pipe is attached to the valve case 12 as shown in FIG. 16, there is a portion 10 between the closing surface 14 of the valve plate 13 and the lowest bottom surface 3 of the tank body 6 that is not affected by the freezing action of the corrugated pipe group 8 within a predetermined processing cycle time. The sludge water to be treated is an unfrozen portion and is difficult to dewater, which poses a major obstacle in the vacuum dewatering operation in the next step.
実際の運転に際しバッチ処理汚泥水1.3mに対して僅
かに11の未処理汚泥水があるだけで真空脱水機の受槽
23内で未処理汚泥水の皮膜が生じ、真空吸引脱水が困
難になることを知見した。During actual operation, if there is only 11 parts of untreated sludge water per 1.3 m of batch-processed sludge water, a film of untreated sludge water will form in the receiving tank 23 of the vacuum dehydrator, making vacuum suction dewatering difficult. I found out that.
上記の問題を解決するため、開閉弁の弁ケースにおける
接続管部内に蛇管群8の一部の蛇管を入り込ませて、凍
結作用の及ばない部分10をなくする考案(実公昭53
−34369号)が既に提案されているが、このもので
は開閉弁の槽本体への取付は位置に応じて特殊な蛇管8
を設計据付けしなければならないという欠点がある。In order to solve the above-mentioned problem, a method was devised in which a part of the flexible pipes of the group of flexible pipes 8 was inserted into the connecting pipe part of the valve case of the on-off valve to eliminate the part 10 that was not affected by the freezing effect.
-34369) has already been proposed, but in this one, the on-off valve is attached to the tank body using a special flexible pipe 8 depending on the position.
The disadvantage is that it must be designed and installed.
本考案は以上に説明した実状に鑑みなされたものであり
、凍結融解処理槽において、処理汚泥水の排出用開閉弁
として閉鎖面を有する摺動弁板と弁開閉のため該摺動弁
板を摺動自在に収めると共に槽本体への取付は側におけ
る接続管部を有しない弁ケースとからなるスライド弁を
用い、該スライド弁の閉鎖時における弁板の閉鎖面が槽
本体の最下底面に近接位置する如くしたことを特徴とす
るものである。The present invention was developed in view of the above-mentioned circumstances, and includes a sliding valve plate having a closing surface as an on-off valve for discharging treated sludge water in a freeze-thaw treatment tank, and a sliding valve plate for opening and closing the valve. A slide valve consisting of a valve case with no connecting pipe part on the side is used to slidably fit and attach to the tank body, and when the slide valve is closed, the closing surface of the valve plate is on the lowest bottom surface of the tank body. It is characterized by being located close to each other.
以下図面に基づいて詳細に説明するに本考案の汚泥凍結
融解処理槽は、その槽本体、へ・シダーおよびその蛇管
群が第1図に示すものと実質的に同じであるが、スライ
ド弁の弁ケースの構造と弁閉鎖時に弁板閉鎖面が占める
位置とにおいて特徴を有する。The sludge freeze-thaw treatment tank of the present invention will be explained in detail below based on the drawings.The tank body, the cedar and the group of flexible pipes thereof are substantially the same as those shown in Fig. 1, but the slide valve is It is characterized by the structure of the valve case and the position occupied by the valve plate closing surface when the valve is closed.
すななわち第3図に示すように、6は下部が断面等脚台
形の槽本体であって該槽本体6の上部には被処理汚泥水
の注水管1および洗浄水注入管2等を臨ませ最下底面3
の一部に処理汚泥水の排出用開口4を有し、槽本体6の
内面を所要の厚さの断熱材層5で内張すしである。That is, as shown in FIG. 3, 6 is a tank body whose lower part is an isosceles trapezoidal cross section, and the upper part of the tank body 6 has a water injection pipe 1 for treated sludge water, a washing water injection pipe 2, etc. Facing the bottom bottom 3
A part of the tank body 6 has an opening 4 for discharging treated sludge water, and the inner surface of the tank body 6 is lined with a heat insulating layer 5 of a required thickness.
断熱材層5は凍結融解処理における冷却、加温に際し断
熱機能を果すほか、被処理汚泥水の凍結に伴う体積膨張
を吸収し槽の破損を未然に防ぐ機能を果すものであって
独立気泡性材料等がらっくられている。The heat insulating material layer 5 not only performs a heat insulating function during cooling and heating during freeze-thaw processing, but also functions to absorb the volumetric expansion caused by freezing of the sludge water to be treated and prevent damage to the tank. Materials, etc. are in good condition.
また槽本体6の上部には一組のヘッダー7□、7°が配
設され、両ヘッダー7□、72間を連通ずるとともに内
張り断熱材層5および最下底面3の内部輪郭に合致する
如く上下に蛇行する多数の同一形状の蛇管8□、8□・
・・・・・8oからなる蛇管群8が配設される。Further, a pair of headers 7□, 7° are arranged at the upper part of the tank body 6, and are arranged so as to communicate between both headers 7□, 72 and to match the internal contours of the lining insulation layer 5 and the lowest bottom surface 3. Many meandering pipes 8□, 8□ of the same shape meandering up and down.
. . . A flexible pipe group 8 consisting of 8 o is arranged.
図中簡略のため蛇管8nをもって代表図示しているがこ
れらの各蛇管81,82・・・・・・8nはすべて同一
の正面輪郭を有し、奇数番目の蛇管8□、83・・・・
・・と偶数番目の蛇管82,84・・・・・・とは横に
半ピツチずれた関係で槽の内部をほは−ばいに行きわた
り、蛇管群8の下底面17は槽液下底面3に近接して位
置する。In the figure, for simplicity, a flexible pipe 8n is shown as a representative, but each of these flexible pipes 81, 82...8n all have the same front profile, and the odd-numbered flexible pipes 8□, 83...
. . . and the even-numbered corkscrew tubes 82, 84, etc. are spread over the inside of the tank in a relationship that is shifted by half a pitch laterally, and the lower bottom surface 17 of the corrugated tube group 8 is the lower bottom surface of the tank liquid. Located close to 3.
前記槽液下底面3の一部に設けられた排出用開口4に対
して処理汚泥水を排出するための開閉弁が取付けられる
のであるが、本考案においては、その開閉弁が前記排出
用開口4を閉鎖すべき閉鎖面14を有する摺動弁板13
と、該弁板13を摺動自在に収める弁ケース12とから
なるスライド弁11であって、その閉鎖時において前記
弁板13の閉鎖面14が前記蛇管群8の下底面17に可
及的に近接位置する如く構成されている。An on-off valve for discharging treated sludge water is attached to a discharging opening 4 provided in a part of the lower bottom surface 3 of the tank liquid. sliding valve plate 13 with a closing surface 14 to close 4;
and a valve case 12 in which the valve plate 13 is slidably housed, and the closing surface 14 of the valve plate 13 is as close as possible to the bottom surface 17 of the flexible pipe group 8 when the slide valve 11 is closed. It is arranged so that it is located close to.
なお15は開弁時の流通路、18はスライド弁11の下
部に直接接続され真空脱水機へ導かれる導管、19は槽
本体6の支持脚、20はスライド弁11の開閉駆動装置
を示す。Note that 15 is a flow path when the valve is open, 18 is a conduit directly connected to the lower part of the slide valve 11 and led to the vacuum dehydrator, 19 is a supporting leg of the tank body 6, and 20 is an opening/closing drive device for the slide valve 11.
また槽本体6は第5図に示すように下部が片面傾斜の断
面形に構成してもよく、前記開閉駆動装置20には駆動
源として手動、空気作動シリンダー、電動機、油圧モー
タ等任意のものを用いることができる。Further, the tank body 6 may have a cross-sectional shape with a lower part inclined on one side, as shown in FIG. can be used.
本考案による汚泥水の凍結融解処理槽は、以上に説明し
た構造を具有し、スライド弁11の使用により弁の完全
閉鎖がなされること、凍結時の増加内圧に充分耐え得る
こと、弁に附属する機器および槽の排出用開口附近を全
く汚染しないことなど凍結融解処理槽と結合してスライ
ド弁本来の機能を果すことは勿論であるが、特にスライ
ド弁11の弁ケース12は槽本体への取付は側における
接続管部を有しない構成とされ、その閉鎖時において摺
動弁板13の閉鎖面14が蛇管群8の下底面17に近接
位置する如く構成されているので被処理汚泥水の未凍結
部分は皆無となり、融解後の処理汚泥水の真空脱水処理
に何ら支障を来たさず処理効率の向上に寄与するところ
が大きい。The freezing and thawing treatment tank for sludge water according to the present invention has the above-described structure, and is capable of completely closing the valve by using the slide valve 11, can sufficiently withstand increased internal pressure during freezing, and has the following features: Of course, the slide valve performs its original function in conjunction with the freeze-thaw treatment tank, such as not contaminating the equipment near the discharge opening of the tank, and the valve case 12 of the slide valve 11 is especially designed to avoid contaminating the tank body. The installation is structured so that there is no connecting pipe part on the side, and the closing surface 14 of the sliding valve plate 13 is located close to the bottom surface 17 of the flexible pipe group 8 when the valve plate is closed, so that the sludge water to be treated is There is no unfrozen portion, which does not cause any problem in the vacuum dehydration treatment of treated sludge water after thawing, which greatly contributes to improving treatment efficiency.
第1図は汚泥水の凍結融解処理槽の一部破断して示す説
明用正断面図、第2図は開閉弁として通常のスライド弁
を用いている凍結融解処理槽の要部断面図、第3図は本
考案による凍結融解処理槽の要部断面図、第4図は処理
汚泥水の後処理に用いる真空脱水機の概略説明図、第5
図は槽本体の変形形状を示す正面図である。
1・・・・・・被処理汚泥水注入管、2・・・・・洗浄
水注入管、3・・・・・・槽液下底面、4・・・・・・
排出用開口、5・・・・・・断熱材層、6・・・・・・
槽本体、71,72・・・・・・ヘッダー、8、。
8□・・・・・・8n・・・・・・蛇管、8・・・・・
・蛇管群、9・・・・・・開閉弁、10・・・・・・凍
結作用が及ばない部分、11・・・・・・スライド弁、
12・・・・・・弁ケース、13・・・・・・摺動弁板
、14・・・・・・閉鎖面、15・・・・・・流通路、
16・・・・・・接続管部、17・・・・・・蛇管群下
底面、18・・・・・・導管、19・・・・・・支持脚
、20・・・・・・弁開閉駆動装置、21・・・・・・
真空脱水機、22・・・・・・濾布、23・・・・・・
受槽、24・・・・・・真空ユニット。Fig. 1 is a partially cutaway front sectional view of a sludge water freeze-thaw treatment tank; Figure 3 is a sectional view of the main parts of the freeze-thaw treatment tank according to the present invention, Figure 4 is a schematic explanatory diagram of a vacuum dehydrator used for post-treatment of treated sludge water, and Figure 5
The figure is a front view showing a deformed shape of the tank body. 1...Sludge water injection pipe to be treated, 2...Washing water injection pipe, 3...Bottom surface of tank liquid, 4...
Discharge opening, 5...Insulating material layer, 6...
Tank body, 71, 72...Header, 8. 8□・・・8n・・・Snake pipe, 8・・・・・・
・Serpentine pipe group, 9... Open/close valve, 10... Portion not affected by freezing action, 11... Slide valve,
12...Valve case, 13...Sliding valve plate, 14...Closing surface, 15...Flow path,
16... Connecting pipe section, 17... Lower bottom surface of snake pipe group, 18... Conduit, 19... Support leg, 20... Valve Opening/closing drive device, 21...
Vacuum dehydrator, 22...Filter cloth, 23...
Receiving tank, 24... Vacuum unit.
Claims (1)
内張すした槽本体と、一組のヘッダー間を連通ずるとと
もに上下に蛇行して槽本体の断面内部輪郭に合致する如
く配設された多数の同一形状の蛇管からなるブライン用
蛇管群と、前記排出用開口個所で槽本体に取付けられた
開閉弁とを備えてなる処理槽において、前記開閉弁は、
摺動弁板と、弁の開閉のため前記弁板を摺動自在に収め
ると共に槽本体への取付は側における接続管部を有しな
い弁ケースとからなるスライド弁であって、該弁の閉鎖
時において摺動弁板が前記槽本体の最下底面に近接位置
する如くしたことを特徴とする汚泥の凍結融解処理槽。It has a discharge opening in a part of the bottom bottom surface, and communicates between the tank body whose inner surface is lined with a layer of heat insulating material and a set of headers, and meanders up and down to match the cross-sectional internal contour of the tank body. In the treatment tank, the processing tank is equipped with a group of brine brine pipes consisting of a large number of brine pipes of the same shape arranged in such a manner that the brine pipes are arranged in such a manner that the brine pipes are arranged in a manner that
A slide valve consisting of a sliding valve plate and a valve case that slidably accommodates the valve plate for opening and closing the valve and does not have a connecting pipe section on the side that is attached to the tank body, A sludge freeze-thaw treatment tank, characterized in that a sliding valve plate is located close to the lowest bottom surface of the tank body.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16686778U JPS594798Y2 (en) | 1978-12-04 | 1978-12-04 | Sludge freeze-thaw treatment tank |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16686778U JPS594798Y2 (en) | 1978-12-04 | 1978-12-04 | Sludge freeze-thaw treatment tank |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5584200U JPS5584200U (en) | 1980-06-10 |
JPS594798Y2 true JPS594798Y2 (en) | 1984-02-13 |
Family
ID=29166558
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16686778U Expired JPS594798Y2 (en) | 1978-12-04 | 1978-12-04 | Sludge freeze-thaw treatment tank |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS594798Y2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016121859A (en) * | 2014-12-25 | 2016-07-07 | 株式会社島川製作所 | Harmful component heating and purifying device |
JP6814494B1 (en) * | 2020-03-06 | 2021-01-20 | 株式会社島川製作所 | Hazardous component heating purification device |
-
1978
- 1978-12-04 JP JP16686778U patent/JPS594798Y2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5584200U (en) | 1980-06-10 |
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