if.doc I262&14· 九、發明說明： 【發明所屬之技術領域】 本發明係有關於使原水(raw water)加以沈降分離處理 的沈澱槽（沈降分離裝置），特別有關於供給在槽體中央部 之原水的至少一部分沿槽體之内周壁上昇成為澄清水，此 澄清水從溢流部加以流出之方式所構成的沈澱槽。 【先前技術】 沈降分離裝置係有自然沈降分離裝置，傾斜沈降分離 裝置及凝集沈澱分離裝置等（參照水處理管理便覽，丸善株 式會社，1998年9月30曰發行，第130頁表2 · 12)。依 照同書第131頁2 · 3 · 3，在自然沈降分離裝置，作有長 方形與圓形，長方形係以通常水平流稱為橫流式沈澱池， 圖形沈降裝置係有上向流與水平流式，以澄清為目的之場 合係以採用水平流式。 才兴/爪式沈氣池係谷易產生密度流(如仍办CUrrent)，設 流入、流出整流葉片（straightening Uane)或中間整流葉片加 以均一化以圖謀提昇分離效率。圓形沈降裝置係沈降淤泥 (sludge)之集泥容易。將圓形沈澱槽之結構例（同書第131 圖2 · 22)表示於圖4。在此圓形沈澱槽，在設於# 中央的中央井2以經介原水供給管3所供二原:體二 中央井2之下部擴大於槽體丨的下部，其次在槽體工内上 昇，此間固體份加以沈降分離，澄清水從溢流堰4溢流流 出槽體外。所沈降之㈣係由驅動裝置5加以旋轉驅動之 集泥用雜(rake)6收集於排泥部7，卩經介排出管8加以 12628 l565Pifd〇c 排出。 ，斜錢刀_置係在沈降槽内插人傾斜板或水平板 者：在：之下面產生澄清液，沈降面積多出所插入之面積 =利用澄清液之生長速度加快之原理。因純以比 / 3:二插入面積可增大分離面積，可使水面積負載 ("Μ)變小，可加以分離沈降速度小之粒子。 /、有此傾斜板之沈澱槽係記述於日本專利實公平 5 45363號么報、、日本專利特開平5_2QQ挪號公報等。 【專利文獻1】水處理t理便覽，丸善株社，1998 年9月30日發行 【專利文獻2】日本專利實公平5_45363號公報 【專利文獻3】日本專利特開平5-200205號公報 【發明内容】 、，在上述曰本專利實公平5_45363號公報、曰本專利特 開平5-2GG2G5號公報之沈殿槽’係在擴大翻設置傾斜 板’為南成本。 本發明係提供一種雖然以比較簡單的構成也能優越於 固體份之沈降分離特性的沈澱槽為目的。 本發明之沈澱槽，係在使供給於槽體中央部之原水的 至少一部分，沿該槽體之内周壁上昇，從該槽體上部之溢 流部成為澄清水加以流出的沈澱槽，其特徵在於，沿該槽 體之内周壁面加以設傾斜板。 在本發明之沈澱槽，供給於槽體中央部之原水的大部 分，係沿槽體底部向槽體内周壁流，其次沿該内周壁上昇， I2628ii 备 pi f.doc 此間加以進行固體分之沈降分離處理，澄清水從槽體上部 之溢流部加以溢流。 在本發明，係在此槽體内周壁設傾斜板之關係，水在 /口此槽體内周壁面上昇之間能有效率的加以沈降分離處 理。在本發明，傾斜板係僅沿槽體内周壁加設就足夠的關 係’比習知例傾斜板之設置片數以較少就夠，裝置構成可 、交為簡單的同時，裝置構成的成本的也成為廉價。 為讓本發明之上述和其他目的、特徵和優點能更明顯 易懂’下文特舉較佳實施例，並配合所附圖式，作詳細說 明如下。 【實施方式】 以下’對於本發明之較佳實施例加以說明。圖1係關 於實施例之沈澱槽的縱斷面圖，圖2(a)係圖1之ll-π線所 視斷面圖’圖2(b)係圖2(a)之B-B斷面圖。 在關於此實施例之沈澱槽10，槽體Π係以圓形，在 其^央部設置供給井12。此供給井12係上下端為開放之 圓筒狀’其上端部係比槽體I内之水面位向上方突出。在 槽體1之中央底部，係設將沈降之固體份加以收集排出的 坑狀排出部13。 槽體Π之底部lla，係從槽體丨1之内周壁面llb向 中央成為下坡度之圓錐形狀。 在此槽體11之内周壁面ub設置多數傾斜板14。各 板14係為大略長方形之平板狀，其一長邊固裝於内周 ^ Ub。各傾斜板14彼此之間隔係為一定，各傾斜板14If.doc I262&14. IX. Description of the Invention: [Technical Field] The present invention relates to a sedimentation tank (sedimentation separation device) for subjecting raw water to sedimentation separation treatment, and more particularly to supply to a tank body At least a part of the raw water in the central portion rises along the inner peripheral wall of the tank to form a clarified water, and the clarified water flows out from the overflow portion to form a sedimentation tank. [Prior Art] The sedimentation separation device is a natural sedimentation separation device, a tilting sedimentation separation device, and a coagulation sedimentation separation device. (Refer to the Water Treatment Management Handbook, Maruzen Co., Ltd., issued on September 30, 1998, page 130, Table 2 · 12 ). According to the same book, page 131, 2 · 3 · 3, in the natural sedimentation separation device, there are rectangular and circular, rectangular system is called horizontal flow sedimentation tank in the normal horizontal flow, and the pattern sedimentation device is composed of upward flow and horizontal flow. The purpose of clarification is to use horizontal flow. The talent/claw sinking gas pool is susceptible to density flow (if still CUrrent), and the inflowing or outflowing rectifying blades (averaged Uane) or intermediate rectifying blades are uniformed to increase the separation efficiency. The circular settling device is easy to collect sludge from sediment. A structural example of a circular sedimentation tank (the same as that of Fig. 131, Fig. 2 · 22) is shown in Fig. 4. In this circular sedimentation tank, the central well 2 located at the center of # is supplied to the lower part of the tank body by the medium raw water supply pipe 3, and the lower part of the body 2 central well 2 is expanded in the lower part of the tank body, and then rises in the tank body. The solid portion is sedimented and separated, and the clarified water overflows from the overflow weir 4 and flows out of the tank. The settled (4) is collected by the rake 6 which is rotationally driven by the driving device 5, and is collected in the sludge discharging portion 7, and discharged through the medium discharge pipe 8 to 12628 l565Pifd〇c. , oblique money knife _ set in the sinking trough inserted into the inclined plate or horizontal plate: in the: below the production of clear liquid, the area of the settlement is more than the inserted area = the use of the clarified liquid growth rate of the principle. Since the separation area can be increased by the ratio of / 3: two insertion areas, the water area load ("Μ) can be made smaller, and particles having a small sedimentation velocity can be separated. / The sedimentation tank having the inclined plate is described in Japanese Patent Publication No. 5 45363, Japanese Patent Laid-Open No. 5-2QQ, and the like. [Patent Document 1] Water treatment, and the use of the water treatment, and the publication of the Japanese Patent Publication No. 5-45363 [Patent Document 3] Japanese Patent Laid-Open No. Hei 5-200205 The contents of the above-mentioned Japanese Patent Publication No. 5_45363, and the Japanese version of the Japanese Patent Laid-Open No. 5-2GG2G5 are based on the fact that the sloping plate is enlarged. The present invention has an object of providing a sedimentation tank which is superior to the sedimentation separation characteristics of a solid portion in a relatively simple constitution. The sedimentation tank according to the present invention is characterized in that at least a part of the raw water supplied to the central portion of the tank body rises along the inner peripheral wall of the tank body, and the overflow portion from the upper portion of the tank body becomes a sedimentation tank through which the clarified water flows out, and is characterized by The sloping plate is provided along the inner peripheral wall surface of the groove body. In the sedimentation tank of the present invention, most of the raw water supplied to the central portion of the tank body flows toward the inner peripheral wall of the tank along the bottom of the tank body, and then rises along the inner peripheral wall, and I2628ii prepares the solid portion. The sedimentation separation treatment processes the clarified water from the overflow portion of the upper portion of the tank to overflow. In the present invention, the relationship between the inclined plates is provided in the peripheral wall of the tank, and the water can be efficiently settled and separated between the rise of the peripheral wall surface of the tank. In the present invention, the inclined plate is only added along the peripheral wall of the groove in a sufficient relationship. The number of the inclined plates is less than that of the conventional example. The device configuration can be simple and the cost of the device is at the same time. It also becomes cheap. The above and other objects, features, and advantages of the present invention will become more apparent <RTIgt; [Embodiment] Hereinafter, preferred embodiments of the present invention will be described. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a longitudinal sectional view of a sedimentation tank according to an embodiment, Fig. 2(a) is a sectional view taken along line ll-π of Fig. 1; Fig. 2(b) is a sectional view taken along line BB of Fig. 2(a) . In the sedimentation tank 10 of this embodiment, the tank body is circular, and the supply well 12 is provided at its central portion. The supply well 12 has a cylindrical shape in which the upper and lower ends are open, and its upper end portion protrudes upward from the water surface position in the tank body 1. At the center of the center of the tank body 1, a pit-like discharge portion 13 for collecting and discharging the settled solid portion is provided. The bottom portion 11a of the tank body has a conical shape with a downward slope from the inner peripheral wall surface 11b of the tank body 1 toward the center. A plurality of inclined plates 14 are provided on the inner peripheral wall surface ub of the tank body 11. Each of the plates 14 has a substantially rectangular flat plate shape, and one long side thereof is fixed to the inner circumference ^ Ub. The spacing between the inclined plates 14 is constant, and each inclined plate 14
I262814P,d0C 之傾斜錢θ (對於水平面之仰角）也為同_。此各傾斜 板14之傾斜角Θ係以45。〜80。特別以55。〜7〇。程卢為宜。 傾斜板Μ係設於整個内周壁面llb之全周。在^施例， 傾斜板14之下端係位置於從槽體底面Ua以所定距離的上 方。又，傾斜板14之上端係位置於比槽體u之水面位為 下方。傾斜板14之横寬L係以槽體U之半徑〜3〇% 程度為宜。 在沿内周壁面lib之上部設溢流堰15作為溢流部。 在以此所構成之沈澱槽10,原水係供給於供給井12 内，主要從槽體底面lla沿流於槽體内周壁面ΙΑ，從溢 流堰15溢流，由澄清水排出管16加以排出。在沿流於此 槽體内周壁面Ub之間，藉由在傾斜板14彼此間以 良好效率加以沈降分離處理。沈降物係從内周壁面nb沿 流於槽體底面11a，流入坑狀排出部13，由此向槽體u 外加以排出。 胃 在此實施例雖然傾斜板14係僅以一方向所傾斜之單 板狀’也可如圖3成為波形彎曲之傾斜板14A。 本發明係在傾斜扳14彼此(或14A彼此間）也可加以充 填腊希格環(Raschig ring)形狀之多孔質充填體，將傾斜板 彼此間之流路加以細分割。 在本發明，明係也可如上述圖4,沿槽體底面設旋轉 之木泥用刮板裝置。 在上述實施例之槽體11的平面所視形狀雖然係為圓 形，也可為方形或五角形以上之多角形、橢圓形等。 if.doc 126281^5p 雖然本發明已以較佳實施例揭露如上，然其並非用以 限定本發明，任何熟習此技藝者，在不脫離本發明之精神 和範圍内，當可作些許之更動與潤飾，因此本發明之保護 範圍當視後附之申請專利範圍所界定者為準。 【圖式簡單說明】 圖1，係關於實施例之沈澱槽的縱斷面圖。 圖2(a)，係圖1之II-II線所視圖、圖2(b)係圖2(a)之 B-B線斷面圖。 圖3，係設於其他實施例之傾斜板的侧面圖。 圖4，係習知之沈澱槽的縱斷面圖。 【主要元件符號說明】 10 ··沈澱槽 11 :槽體 lib :槽體内周壁面 14、14A :傾斜板I262814P, the tilting cost θ of d0C (elevation angle for the horizontal plane) is also the same _. The inclination angle of each of the inclined plates 14 is 45. ~80. Especially with 55. ~7〇. Cheng Lu is suitable. The inclined plate is provided over the entire circumference of the entire inner peripheral wall surface 11b. In the embodiment, the lower end of the inclined plate 14 is positioned above the predetermined distance from the bottom surface Ua of the trough. Further, the upper end of the inclined plate 14 is positioned below the water level of the groove u. The width L of the inclined plate 14 is preferably about 3% of the radius of the groove U. An overflow weir 15 is provided as an overflow portion along the upper portion of the inner peripheral wall surface lib. In the sedimentation tank 10 configured as described above, the raw water is supplied into the supply well 12, and mainly flows from the bottom surface 11a of the tank to the peripheral wall surface of the tank, overflows from the overflow weir 15, and is supplied from the clarified water discharge pipe 16 discharge. The sedimentation separation treatment is performed between the inclined plates 14 with good efficiency between the peripheral wall faces Ub flowing in the grooves. The sediment flows from the inner peripheral wall surface nb to the groove bottom surface 11a, flows into the pit-shaped discharge portion 13, and is discharged to the outside of the tank body u. Stomach In this embodiment, the inclined plate 14 is formed in a single plate shape inclined in only one direction, and may be a wave-shaped inclined plate 14A as shown in Fig. 3. In the present invention, the inclined plates 14 may be filled with a Raschig ring-shaped porous filling body between the inclined plates 14 (or 14A), and the flow paths between the inclined plates may be finely divided. In the present invention, as shown in Fig. 4, a rotary wood scraper device may be provided along the bottom surface of the tank. Although the shape of the plane of the tank body 11 of the above embodiment is circular, it may be a square or a pentagon or more, a polygonal shape, an elliptical shape or the like. If the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the invention, and those skilled in the art can make some changes without departing from the spirit and scope of the invention. And the scope of the present invention is defined by the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a longitudinal sectional view of a sedimentation tank according to an embodiment. Fig. 2(a) is a view taken along line II-II of Fig. 1, and Fig. 2(b) is a cross-sectional view taken along line B-B of Fig. 2(a). Fig. 3 is a side elevational view of the inclined plate of the other embodiment. Figure 4 is a longitudinal sectional view of a conventional precipitation tank. [Description of main component symbols] 10 ··Precipitation tank 11 : Trough body lib : Peripheral wall surface of the tank 14 , 14A : Inclined plate