JPH01231910A - Precipitator - Google Patents

Abstract

PURPOSE:To efficiently precipitate scum and to discharge the scum to the outside by appropriately spreading membranous materials around a flow straightening cylinder of a circular precipitator, and rotating the material close to the cylinder. CONSTITUTION:One or many strip-shaped membranous materials A and B are circularly spread around the flow straightening cylinder 5 of the circular precipitator by a float, etc. One or >=2 circular membranous materials close to the cylinder 5 are made rotatable. As a result, scum is efficiently precipitated, and discharged to the outside.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is directed to
This invention relates to a scum removal device for 11I narrow placement.

Conventionally, a method has been proposed in which a slit-shaped hanging membrane is spread out in a circular shape in these sedimentation separators, but when this device is operated continuously, the sewage discharged from the rectifier tube of the sedimentation separator is aerated or pulsed. The problem is that scum forms due to the formation of Φ-rings and forms a layer on the surface of the water, resulting in a marked decline in the sedimentation and separation function.

The present inventors have completed the present invention as a result of various studies aimed at solving these conventional drawbacks.

That is, the present invention provides a conventional sedimentation separator in which a membrane-like material is spread in one circular strip or in multiple strips around the straightening cylinder of the device, and among the membrane-like materials formed in the circular shape, In a circular sedimentation separator or a galvano-type sedimentation separator characterized in that one or more grooves near the rectifier tube are arranged to rotate, This is a galvanometric sedimentation/distribution device with multiple rows of shaped objects.

Next, the present invention will be explained with reference to the drawings.

Figure 1 shows the gap 1 used in the Enno Shenjin Separation Tablet of the present invention.
2 is a side view of a film-like substance S having a Also the second
The figure shows a case in which seven sheets 2 are attached to the sheet-like membrane material shown in FIG. 1, and FIG. 3 is a side view thereof.

The membrane-like material is formed by fixing, for example, a rectangular sheet 3 to a rope 4 so as to provide a gap 1, as shown in FIG.

Fig. 4.5 shows a state in which the film-like material according to the present invention is spread on the tarlarifier. 1. According to the present invention, vi, a membrane-like substance A and Bt'' which are formed in a circular shape close to the flow section 5 are disposed so that the membranes are formed in the same shape. As a means for rotating the film-like material, for example, the scraper truss of a clarifier (
If the film-like material is fixed in an appropriate manner to the scraper truss (as shown in the figure), the film-like material rotates together with the scraper truss, so there is no need to provide a power source for this purpose. Alternatively, it is also possible to provide a power source separate from the power source for the scraper truss to rotate these film-like materials separately from the scraper truss.In this case, the film-like materials forming a circle Episode ii!IJ
Speed can be trained to confession.

In the present invention, the minimum rectification f% of the circularly expanded flat object
It is necessary to move the object closest to (7..1'', which corresponds to A in the attached drawings).

When treated in the sedimentation device as described above, for example, the scum present in the wastewater discharged from the 11-dish tube section of the Talarifier floats between the straightening tube 5 and the circularly stretched film-like material A. Circumferential speed of rectifier cylinder 5 and film-like substance A of 8
Since the speed is JJ4, the treated water between them generates a water flow in the direction of rotation of the membrane material. The flow of the treated water becomes faster as it approaches the membrane material A from the rectifier cylinder.

As a result, the scum (scum) contacts the surface of the membrane-like material, rotates in conjunction with the flow, and becomes turbulent, and the particle size gradually increases, and the scum settles to the bottom. The scum that was made was collected by Suki!-,
The mud is discharged to the outside from the mud discharge pipe 6.

In addition, as another embodiment of the present invention, in the case of a galvanometric type sedimentation separation device, as shown in FIG. Stretch the object so that it can move in the stretching direction (the lateral direction of the device).

In yet another embodiment, as shown in FIG. 7, the film-like material is stretched into an endless belt shape, and this is stretched rotatably. In that case, as shown in No. 7 [NK], for example, three rows may be arranged on the wastewater inlet side of the cross-flow type sedimentation device, and the rest may be fixed types.

[Brief explanation of the drawing]

FIG. 1 shows a front view of a membrane-like object having a gap according to the present invention, FIG. 2 shows a front view of the membrane-like object shown in FIG. 1 with a float attached, and FIG. shows a side view of
Figure 4 shows a side sectional view when a membrane material spread in a circular shape is attached to the tallifier, Figure 5 shows a plan view of Figure 4, and Figures 6 and 7 are galvanometric type. A plan view of the sediment I@ device is shown. Patent applicant Nippon Solid Co., Ltd. Figure 1 Figure 2 Figure 3 Figure 4 Dimensions Figure 5 Figure 6 Figure 7 Procedure amendment (method) % formula % 1. Incident display Sedimentation separator 3, amendment Patent applicant address: 5F, 4, New Shinbashi Building, 2-16-1 Shinbashi, Minato-ku, Tokyo Date of amendment order: May 11, 1988 (Despatch: May 31, 1988)
, Drawing subject to amendment 6, Contents of amendment Figure 4 q Part 5

Claims (2)

[Claims] (1) In a circular sedimentation separator, a single or multiple film-like material is spread in a circular shape around the straightening tube of the device, and among the film-like materials formed in the circular shape, the film-like material is spread around the straightening tube of the device. A circular sedimentation separator characterized in that one or more adjacent rows are arranged so as to rotate. (2) A cross-flow type sedimentation separator characterized in that a membrane-like material is movably extended in a direction perpendicular to the flow direction, and a plurality of rows of the membrane-like material are provided.