JPS59109207A - Laminated structure for treating liquid - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a laminated structure for processing liquids with mutually parallel ducts.

Such a structure is known from German Publication No. 203061.8 for inclined purification devices. In this bulletin,
Arcs in the same direction of rotation, ie parallel arcs, are arranged one above the other. From this it can be seen that these arcs arranged one above the other are parallel to each other, so that closed chambers or cross-sections are possible but not present. The separation effect is relatively small and is only applicable, for example, in the case of cleaning oil-containing wastewater.

The object of the invention is to create a laminate structure with a closer arrangement of mutually identical laminates and thus with less volume and space requirements. Furthermore, this layered structure is intended to be easily assembled with off-the-shelf elements and later integrated into existing equipment.

According to the invention, this task is fixed in such a way that the edge of each arc is tangent to the center of the inner surface of the adjacent arc, and the center point of the arc coincides with each second intersection of the square or rectangular network. This is how it is solved.

This configuration according to the present invention has the effect of significantly increasing the size of the wetted surface per unit space. The arc of the present invention is
placed one above the other with opposite rotational directions. Every fourth arc of the arcs placed one above the other is again parallel to the first arc or has the same direction of rotation.

This results in a closed chamber or a closed flow cross section and a large wetted area according to the invention, which results in very favorable hydraulic parameters.

Furthermore, the present invention has 1. It can be applied not only to the purification of oil-containing wastewater, but also to drinking water clarification, wastewater purification, sludge concentration, contact with liquid gas, biological treatment of liquids, cooling, etc. In that case, the low Reynolds number achieved by the present invention gives rise to a large separation effect due to the small hydraulic radius.

Furthermore, the laminate structure according to the invention requires very little space and can be easily assembled from ready-made elements, so that the finished laminate structure can then be integrated into existing equipment later on.

Further advantageous embodiments of the invention are disclosed in claim 2.
This is caused by using the structure of one or more of the terms 9 to 9. In particular, it is possible to increase the working surface and to adapt the surface condition to the specific insertion conditions. According to claim 4, a cross-section in the form of a chamber with a number of closed corners with acute angles is obtained, which increases the settling action and the capacity of the device.

The present invention will be explained below with reference to the accompanying drawings.

FIG. 1 shows a laminated structure, the vertically extending tacts 64 of which are formed or separated from each other by arc-shaped separating elements 65 .

Particularly good settling properties result in the configuration of FIG. 2. This is because the cross section has many sharp corners along which impurities are particularly likely to precipitate. Separation element 6
5 is constructed such that the edges of the individual arcs each contact or are fixed to the inner center of the adjacent curve.

The radii r of the separation elements 65 are preferably the same.

From the point of view of manufacturing and assembly and as close to a surface ratio as possible, it is advantageous for the center points of the individual arcs to coincide with each second intersection 67 of the square or rectangular mesh 66. The pitch t of the square or rectangular mesh 66 is preferably greater than the radius r, but less than the product r-r (in the case of a square mesh). That is, if the pitch t is smaller than the radius r, a complicated cross section that is difficult to manufacture will result. t) In the case of r-JT', the circular arcs do not touch each other and the acute angle described above does not occur.

In a preferred embodiment, the laminated structure is connected from the tube in the manner shown in FIG. A slit 69 is formed in the jacket 68 of the tube in the direction of the outer circumference, which slit extends over half the length of the tube. These slits allow the tubes to be joined.

The laminated structure can also consist of arcuate separation elements 65 shown in FIG. This is a semicircular curve and is fixed to the associated system along its perimeter. This method results in a wave-shaped element, which is combined with another element in such a way that the curved edge of the first element is located in the center of the second element. The element may be comprised of vacuum-formed plastic or other material that is inert to the liquid being treated. The elements are interconnected by connecting elements, by adhesive or by welding.

In the case of the solution shown in FIG. 5, the individual semicircular curves are interconnected with a flat plate 70 interposed therebetween. The semicircular curve and flat plate 70 form a continuous component.

FIG. 6 shows a layered structure made up of elements according to FIG. 5, in which flat separating elements 72 are arranged between the separating elements 65, in particular in the lines of a square or rectangular mesh 66. There is. The enlargement of the surface ratio is achieved by a ridge 71 formed on the arc-shaped separating element 65 and/or on the flat separating element 72.

At the edge of the laminated structure according to FIG. 1 there is a closed separating element 73 of completely circular cross section, which separating element is slit along its only circumferential line.

The layered structure according to the invention shown in FIGS. 1 to 6 can be used in many other ways besides the one shown here. Due to the diagonal arrangement, the laminated structure is particularly suitable for gravity settling and for settling water containing mud.

Another important area of use is coagulation purification. The laminated structure is then utilized for the settling of flakes present in the flocculated drinking water or waste water, and also at a cleanliness level (1).

A similarly important area of use is flotation, in which case the laminated structure according to the invention is advantageously used due to the separation required by flotation. For example, fats, oils, fibrous substances (impurities in the paper industry), as well as substances with a specific gravity heavier than water (e.g. in industrial wastewater of metal and coal sorting), siphoned from wastewater purification systems operated with biological slurry. Biogenic mud can be removed.

The diagonally arranged lamination system can also be utilized for compaction and dewatering of muds carried out by gravity. At the same time, additional vibratory compression can be carried out between the tube stacks.

Along the vertically arranged laminated structure, the liquid flows down in the form of a film that comes into contact with the air. In this form, the layered structure is suitable for liquid-air contact, for example for biological wastewater purification with drips.

Another area of use is degassing from liquids.

The liquid to be degassed is charged onto the laminated system from above and drips evenly downwards under the action of gravity, the gas escaping from the liquid.

Another important area of use is the water purification of the technology, where the laminated structure according to the invention allows a powerful purification due to its surface area relative to the volume unit. The reason is that a large contact surface occurs between the liquid and the air.

[Brief explanation of drawings]

1 is a schematic diagram of a laminate structure according to the invention in a vertical position; FIG. 2 is a cross-sectional view of the laminate structure of FIG. 1; and FIG. 3 is a perspective view of two slit tubes inserted together to produce a laminate structure. 4 and 5 show an embodiment of a separating element having a laminated structure, and FIG. 6 shows a separating element whose surface is provided with a raised portion. 64...Duct 65...Separation element 66...
・Square or rectangular mesh 67...Intersection 68・Pipe 69...Slit 70...Plate 71...
・Protuberance 72.73... Separation element Agent Patent attorney Takehisa Ito'<J'b" Figure 1 Figure 2 Figure 4 t Figure 6

Claims (1)

[Scope of Claims] (1) In a layered structure for treating liquids having mutually parallel ducts, the walls of which are formed by separating elements with arc-shaped cross sections, each of the arc A laminated structure characterized in that the edges are tangentially fixed to the centers of the inner surfaces of adjacent arcs, and the center points of the arcs coincide with each second intersection of a square or rectangular network. 2. Structure according to claim 1, characterized in that the pitch (1) of the square or rectangular mesh (66) is smaller than the radius of the circular arc. (3) The structure according to claim 1 or 2, characterized in that the laminated structure is composed of separating elements (65) having a semicircular curve-shaped cross section. (4) The separating element (65) is a tube (68), the jacket of the tube is slit along the circumference up to half the length of the tube, and the individual tubes (68) are slit (
69) The structure according to claim 1, characterized in that the structure is joined by a fitting. (5) Structure according to any one of claims 1 to 3, characterized in that the separating elements (65) are mutually fixed at their outer circumference and form associated structural parts. . (6) The separation element (65) is a flat plate (7o
4. A structure according to any one of claims 1 to 3, characterized in that they are interposed to form associated structural parts fixed to each other along their outer circumferences. (7) Between the separating elements (65), in particular on the lines of the square or rectangular mesh (66), flat separating elements (72) are also arranged. The structure described in any of Item 6. (8) Arc-shaped separation element (65) and/or
8. Structure according to claim 7, characterized in that it comprises a flat separating element (72) or a ridge (71). (9) Closing separation elements with a completely circular cross section at the edges (
73), the jacket of which is slit along a unique circumferential line.