JPS6439898U

JPS6439898U -

Info

Publication number: JPS6439898U
Application number: JP13461687U
Authority: JP
Priority date: 1987-09-04
Filing date: 1987-09-04
Publication date: 1989-03-09
Also published as: JPH0420554Y2

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例の要部断面図（第４
図のＡ―Ａ断面図）、第２図は同上のスカム除去
装置を備えた円形沈澱池断面図、第３図は同上の
平面図、第４図は同上のスカムボツクスの平面図
、第５図は同上の正面図、第６図は同上の第４図
のＢ―Ｂ断面図、第７図は同上の堰止板の正面図
、第８図は同上のスカムボツクスとスカム排出管
との接続状態図、第９図は同上のリミツトスイツ
チの取付状態図、第１０図は同上他の実施例の第
１図相当図、第１１図同上の堰止板の正面図、第
１２図は同上の案内部材の平面図、第１３図は同
上更に他の実施例の断面図、第１４図は従来のス
カム除去装置を示す図である。２０…円形沈澱池本体、３２…滞留部、４１…
スカムスキマ、５０…スカムボツクス、５０ｆ，
５０ｈ…上端部、５４…スカム排出管、５５…エ
ア自動ボール弁、５６…案内板、５９ａ…案内条
、６１…リミツトスイツチ、６２…傾斜板。 FIG. 1 is a cross-sectional view of a main part of an embodiment of the present invention (the fourth
Figure 2 is a cross-sectional view of the circular sedimentation tank equipped with the scum removal device shown above, Figure 3 is a plan view of the same as above, Figure 4 is a plan view of the scum box shown above, and Figure 5 is a cross-sectional view of the same as above. is a front view of the same as the above, Fig. 6 is a BB sectional view of Fig. 4 of the above, Fig. 7 is a front view of the dam plate of the above, and Fig. 8 is a state of connection between the scum box and the scum discharge pipe of the above. Figure 9 is an installation state diagram of the limit switch same as the above, Figure 10 is a view corresponding to Figure 1 of another embodiment of the same, Figure 11 is a front view of the dam plate as the same as the above, and Figure 12 is the guide member as the same as the above. FIG. 13 is a sectional view of another embodiment of the same, and FIG. 14 is a diagram showing a conventional scum removing device. 20...Circular sedimentation basin body, 32...Retention part, 41...
Scum skimmer, 50...Scum box, 50f,
50h... Upper end portion, 54... Scum discharge pipe, 55... Air automatic ball valve, 56... Guide plate, 59a... Guide strip, 61... Limit switch, 62... Inclined plate.

Claims

[Scope of Claim for Utility Model Registration] (1) A scum skimmer that moves across the liquid surface in a tank to scrape up scum floating on the surface; A scum box into which scum is introduced from the upper end opening, a scum discharge pipe communicating between the inside of the scum box and the outside of the tank, a normally closed automatic on-off valve installed in the scum discharge pipe, and a scum discharge pipe connected to the outside of the upper end of the scum box. a first guide part that slides and guides the lower end of the scum skimmer that is submerged under the liquid surface of the scum box and moves toward the upper end of the scum box; a second guide portion that slides and guides the lower end portion toward the upper end portion on the leading end side in the moving direction; and a moving position detector that operates according to the movement of the scum skimmer, based on a signal from the moving position detector. The scum removing device is characterized in that the automatic opening/closing valve is opened when it is detected that the scum skimmer approaches a predetermined distance in front of the scum box. (2) The first guide part and the first guide part are connected to the first guide part.
2. The scum removing device according to claim 1, further comprising a guide member that is detachably connected to the upper edge of the scum box on the side guided by the guide portion.