JP3161056B2 - Rotary drum type electroosmotic dehydrator - Google Patents
Rotary drum type electroosmotic dehydratorInfo
- Publication number
- JP3161056B2 JP3161056B2 JP19118692A JP19118692A JP3161056B2 JP 3161056 B2 JP3161056 B2 JP 3161056B2 JP 19118692 A JP19118692 A JP 19118692A JP 19118692 A JP19118692 A JP 19118692A JP 3161056 B2 JP3161056 B2 JP 3161056B2
- Authority
- JP
- Japan
- Prior art keywords
- electrode plate
- anode
- rotary drum
- side electrode
- drum type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Treatment Of Sludge (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、下水処理場などで発生
する汚泥を脱水処理する回転ドラム型電気浸透式脱水
機、特にその回転ドラムに装着した陽極側電極板への給
電構造を含めた回転ドラムの組立構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary drum type electroosmotic dehydrator for dewatering sludge generated in a sewage treatment plant or the like, and particularly to a power supply structure for an anode-side electrode plate mounted on the rotary drum. The present invention relates to a rotary drum assembly structure.
【０００２】[0002]
【従来の技術】電気浸透式脱水機として、回転ドラムの
周面に被着した陽極側電極板と、これに対向して回転ド
ラムの周域に張架した陰極側電極を兼ねたベルトとの間
に直流電圧を印加し、回転ドラムのベルトとの間に供給
した汚泥の含有水を電気浸透作用によりベルト側に集め
て系外に分離排水するよう構成した回転ドラム型電気浸
透式脱水機が特開昭６０−２５５９７号公報などで既に
公知である。2. Description of the Related Art As an electroosmotic dehydrator, an anode-side electrode plate attached to the peripheral surface of a rotating drum and a belt serving as a cathode-side electrode stretched around the peripheral region of the rotating drum in opposition thereto are used. A rotating drum type electroosmotic dewatering machine is constructed in which a DC voltage is applied between the belts and water contained in the sludge supplied between the rotating drum and the belt is collected on the belt side by electroosmosis and separated and drained out of the system. It is already known, for example, in JP-A-60-25597.
【０００３】次に、前記回転型電気浸透式脱水機におけ
る回転ドラムの従来構造を図３に示す。図において、１
は回転ドラム組立体、２はドラム組立体１の外筒１ａの
周面上に被着して通電ボルト３により締結固定した鋳鉄
製の陽極側電極板（６〜８枚程度のセグメントに分割さ
れている）、４はドラム組立体１の内筒１ｂに通した中
空構造の回転軸、５は回転軸４と前記内筒１ｂとの間に
介在させた絶縁スペーサ、６は回転軸４の軸端に絶縁フ
ランジ７を介して取付けたスリップリング、８，９は前
記ドラム外筒１ａの裏面側，およびスリップリング７に
設けたケーブル端子台、１０は中空回転軸４を通して前
記端子台８と９の間に引回し配線したケーブルである。
なお、ドラム外筒１ａの表面には導電活性剤を塗布して
外筒１ａと電極板２との間の導電性を確保している。Next, FIG. 3 shows a conventional structure of a rotary drum in the rotary electroosmotic dehydrator. In the figure, 1
Is a rotary drum assembly, and 2 is a cast iron anode-side electrode plate (divided into about six to eight segments) which is attached to the peripheral surface of the outer cylinder 1a of the drum 4 is a rotating shaft having a hollow structure passing through the inner cylinder 1b of the drum assembly 1, 5 is an insulating spacer interposed between the rotating shaft 4 and the inner cylinder 1b, and 6 is a shaft of the rotating shaft 4. Slip rings 8 and 9 are attached to the ends via insulating flanges 7, 8 and 9 are the back side of the drum outer cylinder 1a and the cable terminal block provided on the slip ring 7, and 10 is the terminal blocks 8 and 9 through the hollow rotary shaft 4. It is a cable that is routed and wired between.
Note that a conductive activator is applied to the surface of the drum outer cylinder 1a to secure conductivity between the outer cylinder 1a and the electrode plate 2.
【０００４】かかる構成で、直流電源１１から陽極側電
極板２への給電は、電源１１の＋極に接続したブラシ１
２，回転ドラム側のスリップリング７，ケーブル１０，
ドラム外筒１ａ，および通電ボルト３を介して行われ
る。In such a configuration, power is supplied from the DC power supply 11 to the anode-side electrode plate 2 by the brush 1 connected to the positive electrode of the power supply 11.
2, rotating drum side slip ring 7, cable 10,
This is performed via the drum outer cylinder 1a and the power supply bolt 3.
【０００５】[0005]
【発明が解決しようとする課題】ところで前記した従来
の回転ドラム構造では次記のような難点がある。 （１）陽極側電極板２への通電が回転ドラム組立体１の
外筒１ａ，通電ボルト３を通じて行われることから、外
筒１ａ，通電ボルト３に電流が流れる。このために運転
中に回転ドラム１と電極板２との間の通電部、特に通電
ボルト３，およびその周辺で電食による腐蝕が生じる。
この結果、比較的短期間の運転で電極板２，通電ボルト
３などを新品な部品に交換する保全管理が必要となる。However, the above-mentioned conventional rotary drum structure has the following problems. (1) Since current is supplied to the anode-side electrode plate 2 through the outer cylinder 1a and the current-carrying bolt 3 of the rotary drum assembly 1, a current flows through the outer cylinder 1a and the current-carrying bolt 3. For this reason, during the operation, corrosion due to electrolytic corrosion occurs in the current-carrying portion between the rotary drum 1 and the electrode plate 2, particularly in the current-carrying bolt 3, and in the vicinity thereof.
As a result, it is necessary to perform maintenance management for exchanging the electrode plates 2, the current-carrying bolts 3 and the like with new parts in a relatively short operation.
【０００６】（２）回転ドラム組立体１自身が通電部と
なることから、ドラム組立体１と回転軸４（軸受を介し
てアース電位となる）との間を電気的に絶縁するため
に、中空構造の回転軸４をドラム組立体１の内筒１ｂに
通した上で両者間に絶縁スペーサ５を介装して連結させ
るほか、さらに給電用配線の地絡を防ぐために絶縁被覆
ケーブルを採用して中空回転軸，およびドラム組立体の
内部を引回して配線する必要があるなど、その組立，配
線構造が複雑化する。(2) Since the rotating drum assembly 1 itself serves as a current-carrying part, in order to electrically insulate the drum assembly 1 from the rotating shaft 4 (becoming ground potential via a bearing), The rotating shaft 4 having a hollow structure is passed through the inner cylinder 1b of the drum assembly 1 and is connected by interposing an insulating spacer 5 therebetween. In addition, an insulating coated cable is employed to prevent a ground fault in the power supply wiring. As a result, it is necessary to route and wire the inside of the hollow rotary shaft and the drum assembly, which complicates the assembly and wiring structure.
【０００７】本発明は上記の点にかんがみなされたもの
であり、その目的は前記課題を解決し、陽極側電極板へ
の給電に伴う電食発生を防止して耐久性を高め、併せて
電極板への配線構造が簡易となる回転ドラム型電気浸透
式脱水機、特にその陽極側電極板への配線を含めた回転
ドラムの組立構造を提供することにある。The present invention has been made in view of the above points, and has as its object to solve the above-mentioned problems, to prevent the occurrence of electrolytic corrosion due to the supply of power to the anode-side electrode plate, to increase the durability, and to improve the durability of the electrode. It is an object of the present invention to provide a rotary drum type electroosmotic dehydrator having a simple wiring structure to a plate, and in particular, to provide an assembly structure of a rotary drum including wiring to an anode side electrode plate.
【０００８】[0008]
【課題を解決するための手段】上記の目的を達成するた
めに、本発明によれば、回転ドラムの外筒上に被着した
陽極側電極板と、これに対向して回転ドラムの周域に張
架した陰極側電極を兼ねたベルトとの間に直流電圧を印
加し、陽極側電極板とベルトとの間に供給した汚泥の含
有水を電気浸透作用によりベルト側に集めて系外に分離
排水する回転ドラム型電気浸透式脱水機であり、回転ド
ラムの軸の一方の外側端に設置したスリップリングを通
じて電源から陽極側電極板に給電するものにおいて、回
転ドラムの外筒と陽極側電極板との間に絶縁層を介在さ
せた上で、該電極板とスリップリングとの間にリード線
を直接配線接続した回転ドラム型電気浸透式脱水機であ
って、回転ドラムの軸を左右に２分割し、各分割軸ごと
に絶縁物を介してドラム組立体にフランジ結合したこと
とする。また、前記構成の具体的な構造として次記のよ
うな実施態様がある。According to the present invention, there is provided an anode-side electrode plate mounted on an outer cylinder of a rotating drum, and a peripheral region of the rotating drum opposed to the anode-side electrode plate. DC voltage is applied to the belt that also serves as the cathode electrode, and the water contained in the sludge supplied between the anode electrode plate and the belt is collected on the belt side by electroosmosis, and is discharged outside the system. A rotary drum type electroosmotic dewatering machine that separates and drains power from a power source to a positive electrode plate through a slip ring installed at one outer end of the rotary drum shaft. A rotating drum type electroosmotic dehydrator in which an insulating layer is interposed between the plate and a lead wire directly connected between the electrode plate and the slip ring, wherein the rotating drum has a left and right shaft. Divide into two, and for each divided shaft via an insulator And the flange linked to the ram assembly. Further, there is an embodiment as described below as a specific structure of the above configuration.
【０００９】（１）回転ドラムの外筒表面に絶縁コーテ
ィング剤を塗布して陽極側電極板との間を電気的に接続
する。 （２）回転ドラムの外筒および絶縁層にリード引出穴を
開口し、該穴を通じて陽極側電極板の裏面とスリップリ
ングとの相互間にリード線を配線する。 （３）リード線にブスバーを採用するとともに、回転ド
ラムのリード引出穴を通じて陽極側電極板の裏面にブス
バー端子金具を溶接接合し、該端子金具を介してブスバ
ーと電極板との間を接続する。(1) An insulating coating agent is applied to the outer cylinder surface of the rotary drum to electrically connect the outer drum surface to the anode-side electrode plate. (2) A lead drawing hole is opened in the outer cylinder and the insulating layer of the rotating drum, and a lead wire is wired between the back surface of the anode-side electrode plate and the slip ring through the hole. (3) A bus bar is adopted as the lead wire, and a bus bar terminal fitting is welded to the back surface of the anode-side electrode plate through a lead extraction hole of the rotating drum, and the bus bar and the electrode plate are connected via the terminal fitting. .
【００１０】（４）陽極側電極板をチタン製とする。(4) The anode-side electrode plate is made of titanium.
【００１１】[0011]
【作用】上記の構成により、陽極側電極板とスリップリ
ングとの間がリード線（ブスバー）を介して直接接続さ
れているので回転ドラムの組立体自身には電流が流れ
ず、これによりドラム組立体と電極板との間に不当な電
食の発生することがなくなる。また、回転軸を左右に２
分割した上で絶縁物を介してドラム組立体にフランジ結
合した組立構造の採用により、回転ドラム組立体と回転
軸との間を絶縁して安全性を図りつつ、しかもドラム組
立体の内方には回転軸との干渉なしに十分広いブスバー
（裸導体）の配線空間が確保されるので配線構造が簡易
となる。According to the above arrangement, since the anode side electrode plate and the slip ring are directly connected via the lead wire (bus bar), no current flows through the rotating drum assembly itself. Unreasonable electrolytic corrosion does not occur between the solid and the electrode plate. In addition, the rotation axis
By adopting an assembly structure that is divided and flange-connected to the drum assembly via an insulator, it is possible to insulate between the rotating drum assembly and the rotating shaft for safety, and furthermore, to secure the inside of the drum assembly. Since a sufficiently large bus bar (bare conductor) wiring space is secured without interference with the rotating shaft, the wiring structure is simplified.
【００１２】[0012]
【実施例】以下本発明の実施例を図１，図２に基づいて
説明する。なお、図中で図３と対応する同一部材には同
じ符号が付してある。図１，図２において、まず回転ド
ラム組立体１の外筒１ａの表面全域に絶縁コーティング
剤１３を塗布した上で耐蝕性の高いチタンで作られた陽
極側電極板２が被着され、皿ねじ１４により外筒１ａに
締結固定されている。また、ドラム組立体１に装備した
回転軸は左右の分割軸４ａ（中空軸），４ｂ（ソリッド
軸）に２分割されており、各分割軸４ａ，４ｂはフラン
ジ４ｃ，締結ボルト１５を介してドラム組立体１の左右
に設けたスパイダ１ｃに連結されている。ここで、前記
フランジ４ｃ，締結ボルト１５とスパイダ１ｄとの間に
は絶縁物１６を介装して、分割軸とドラム組立体との間
を電気的に絶縁している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In the drawings, the same members corresponding to those in FIG. 3 are denoted by the same reference numerals. 1 and 2, first, an insulating coating agent 13 is applied to the entire surface of an outer cylinder 1 a of a rotary drum assembly 1, and then an anode-side electrode plate 2 made of titanium having high corrosion resistance is attached. It is fastened and fixed to the outer cylinder 1 a by screws 14. The rotating shaft mounted on the drum assembly 1 is divided into left and right divided shafts 4a (hollow shafts) and 4b (solid shafts). Each of the divided shafts 4a and 4b is connected via a flange 4c and a fastening bolt 15. It is connected to spiders 1c provided on the left and right sides of the drum assembly 1. Here, an insulator 16 is interposed between the flange 4c, the fastening bolt 15 and the spider 1d to electrically insulate the split shaft and the drum assembly.
【００１３】一方、外筒１ａには左右に振り分けてリー
ド引出穴１ｄが分散開口しており、該穴１ｄを通してチ
タン製電極板２の裏面側にブスバー端子金具２ａが溶接
接合されている。そして、該端子金具２ａと分割軸４ａ
の軸端に絶縁フランジ６を介して取付けたスリップリン
グ７との間に裸導体のブスバー１７が配線されている。
このブスバー１７は、スリップリング７に一端を接続
し、かつ中空構造の分割軸４ａを通して他端をドラム組
立体１の内方（分割軸４ａと４ｂとの間の空間）に引出
した軸方向のブスバー１７ａと、ブスバー１７ａの他端
に接続したラジアル方向のブスバー１７ｂと、前記端子
台２ａの間に架け渡してブスバー１７ｂに接続したブス
バー１７ｃとを組み合わせて立体的に構築されている。On the other hand, lead extraction holes 1d are distributed and opened in the outer cylinder 1a so as to be distributed to the left and right. Then, the terminal fitting 2a and the split shaft 4a
A bus bar 17 of a bare conductor is wired between the shaft end and a slip ring 7 attached via an insulating flange 6.
This bus bar 17 is connected to the slip ring 7 at one end, and is drawn inwardly into the drum assembly 1 (the space between the divided shafts 4a and 4b) through the hollow divided shaft 4a in the axial direction. A bus bar 17a, a radial bus bar 17b connected to the other end of the bus bar 17a, and a bus bar 17c connected to the bus bar 17b spanning between the terminal blocks 2a are three-dimensionally constructed.
【００１４】かかる構成により、給電時にはスリップリ
ング７よりブスバー１７，端子金具２ａを経由して電極
板２に直接通電されるので、ドラム組立体１は通電経路
に全く関与しない。しかも、電極板２とドラム組立体１
の外筒１ａとの間が絶縁コーティング剤１３で絶縁さ
れ、さらにアース電位となる分割軸４ａ，４ｂとドラム
組立体１との間も絶縁物１６により電気絶縁されている
ので、ドラム組立体１には電流が流れず、したがって電
食の発生するおそれも全くない。With this configuration, when power is supplied, power is directly supplied from the slip ring 7 to the electrode plate 2 via the bus bar 17 and the terminal fitting 2a, so that the drum assembly 1 does not participate in the power supply path at all. Moreover, the electrode plate 2 and the drum assembly 1
And the outer cylinder 1a of the drum assembly 1 is electrically insulated by the insulator 16 between the divided shafts 4a and 4b and the drum assembly 1 at the ground potential. No electric current flows through it, so there is no danger of electrolytic corrosion occurring.
【００１５】[0015]
【発明の効果】以上述べたように、本発明の構成によれ
ば、陽極電極板への給電に伴う回転ドラム組立体側での
電食発生のおそれがなく、これにより従来構造と比べて
寿命，耐久性が大幅に向上する。また、回転軸を左右に
２分割し、かつ絶縁物を介してドラム組立体にフランジ
結合した構造により、ドラム組立体と回転軸との間を電
気的に絶縁しつつ、しかもドラム組立体の内方には回転
軸との干渉なしに広い配線空間が確保されるので、スリ
ップリングと電極板との間をブスバーで配線接続するな
どして配線構造の簡略化が図れる。As described above, according to the structure of the present invention, there is no danger of electrolytic corrosion occurring on the rotating drum assembly side due to power supply to the anode electrode plate. The durability is greatly improved. In addition, the rotary shaft is divided into two parts on the left and right sides and is flange-connected to the drum assembly via an insulator, so that the drum assembly and the rotary shaft are electrically insulated from each other. On the other hand, a wide wiring space is secured without interference with the rotating shaft, so that the wiring structure can be simplified by connecting the slip ring and the electrode plate with a bus bar.
【図１】本発明の実施例による回転ドラム組立体の構成
断面図FIG. 1 is a cross-sectional view illustrating a configuration of a rotary drum assembly according to an embodiment of the present invention.
【図２】図１における要部の拡大図FIG. 2 is an enlarged view of a main part in FIG.
【図３】従来における回転ドラムの組立構造を表す断面
図FIG. 3 is a sectional view showing a conventional rotary drum assembly structure.
１ 回転ドラム組立体 １ａ 外筒 １ｄ リード引出穴 ２ 陽極側電極板 ２ａ 端子金具 ４ａ 分割軸（中空軸） ４ｂ 分割軸 ４ｃ フランジ ７ スリップリング １３ 絶縁コーティング剤 １６ 絶縁物 １７ ブスバー DESCRIPTION OF SYMBOLS 1 Rotary drum assembly 1a Outer cylinder 1d Lead extraction hole 2 Anode side electrode plate 2a Terminal fitting 4a Split shaft (hollow shaft) 4b Split shaft 4c Flange 7 Slip ring 13 Insulating coating material 16 Insulator 17 Bus bar
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭62−254817（ＪＰ，Ａ) 特開 昭56−60604（ＪＰ，Ａ) 実開 昭60−165014（ＪＰ，Ｕ) 実開 平３−86565（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) B01D 35/06 B01D 61/56 C02F 11/12 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-62-254817 (JP, A) JP-A-56-60604 (JP, A) Fully open Showa 60-165014 (JP, U) Really open 86565 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) B01D 35/06 B01D 61/56 C02F 11/12
Claims (5)
板と、これに対向して回転ドラムの周域に張架した陰極
側電極を兼ねたベルトとの間に直流電圧を印加し、陽極
側電極板とベルトとの間に供給した汚泥の含有水を電気
浸透作用によりベルト側に集めて系外に分離排水する回
転ドラム型電気浸透式脱水機であり、回転ドラムの軸の
一方の外側端に設置したスリップリングを通じて電源か
ら陽極側電極板に給電するものにおいて、回転ドラムの
外筒と陽極側電極板との間に絶縁層を介在させた上で、
該電極板とスリップリングとの間にリード線を直接配線
接続した回転ドラム型電気浸透式脱水機であって、 回転ドラムの軸を左右に２分割し、各分割軸ごとに絶縁
物を介してドラム組立体にフランジ結合したことを特徴
とする回転ドラム型電気浸透式脱水機。1. A DC voltage is applied between an anode-side electrode plate attached on an outer cylinder of a rotating drum and a belt serving as a cathode-side electrode stretched around the periphery of the rotating drum in opposition thereto. And the anode
This is a rotary drum type electroosmotic dewatering machine that collects water contained in sludge supplied between the side electrode plate and the belt on the belt side by electroosmosis and separates and drains the water outside the system .
In the power supply from the power supply to the anode-side electrode plate through a slip ring installed at one outer end, with an insulating layer interposed between the outer cylinder of the rotating drum and the anode-side electrode plate,
A rotary drum type electroosmotic dewatering machine in which a lead wire is directly connected between the electrode plate and the slip ring, wherein the shaft of the rotary drum is divided into two right and left sides, and an insulator is provided for each of the divided shafts. A rotary drum type electroosmotic dewatering machine characterized by being flanged to a drum assembly.
て、回転ドラムの外筒表面に絶縁コーティング剤を塗布
して陽極側電極板との間を電気的に絶縁したことを特徴
とする回転ドラム型電気浸透式脱水機。2. The electroosmotic dehydrator according to claim 1, wherein an insulating coating agent is applied to the outer cylinder surface of the rotary drum to electrically insulate the rotary drum from the electrode plate on the anode side. Drum type electroosmotic dehydrator.
て、回転ドラムの外筒および絶縁層にリード引出穴を開
口し、該穴を通じて陽極側電極板の裏面とスリップリン
グとの相互間にリード線を配線したことを特徴とする回
転ドラム型電気浸透式脱水機。3. The electroosmotic dehydrator according to claim 1, wherein a lead extraction hole is opened in the outer cylinder of the rotary drum and the insulating layer , and between the back surface of the anode-side electrode plate and the slip ring through the hole. A rotating drum type electroosmotic dehydrator characterized by wiring leads.
て、リード線にブスバーを採用するとともに、回転ドラ
ムのリード引出穴を通じて陽極側電極板の裏面にブスバ
ー端子金具を溶接接合し、該端子金具を介してブスバー
と電極板との間を接続したことを特徴とする回転ドラム
型電気浸透式脱水機。4. The electroosmotic dehydrator according to claim 3, wherein a bus bar is used for the lead wire, and a bus bar terminal fitting is welded to the back surface of the anode-side electrode plate through a lead extraction hole of the rotating drum. A rotating drum type electroosmotic dehydrator, wherein a bus bar and an electrode plate are connected via a metal fitting.
て、陽極側電極板がチタン製であることを特徴とする回
転ドラム型電気浸透式脱水機。5. A rotary drum type electroosmotic dehydrator according to claim 1, wherein the anode side electrode plate is made of titanium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19118692A JP3161056B2 (en) | 1992-07-20 | 1992-07-20 | Rotary drum type electroosmotic dehydrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19118692A JP3161056B2 (en) | 1992-07-20 | 1992-07-20 | Rotary drum type electroosmotic dehydrator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0631118A JPH0631118A (en) | 1994-02-08 |
| JP3161056B2 true JP3161056B2 (en) | 2001-04-25 |
Family
ID=16270335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19118692A Expired - Lifetime JP3161056B2 (en) | 1992-07-20 | 1992-07-20 | Rotary drum type electroosmotic dehydrator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3161056B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100452145B1 (en) * | 2001-09-07 | 2004-10-12 | 이정언 | Electrodewareting Belt Press equipped with Anode Electric Drum |
| KR101243578B1 (en) * | 2010-12-27 | 2013-03-20 | 손호준 | An electro-osmosis dehydrator of electrophoresis style |
-
1992
- 1992-07-20 JP JP19118692A patent/JP3161056B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0631118A (en) | 1994-02-08 |
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