DE3009707A1 - CLEANING SYSTEM - Google Patents

Description

HOFFMTANN · EITLE St PARTNER 3009707

PATENT LAWYERS DR. ING. E. HOFFMANN (1930-1976). DIPL.-ING. W.EITLE DR. RER. NAT. K. HOFFMANN. DIPL.-1NG. W. LEHN

DIPL.-ING. K. FOCHSLE ■ DR. RER. NAT. B. HANSEN ARABELLASTRASSE 4 (STERNHAUS) D-8000 MÖNCHEN 81 TELEPHONE (089) 911087. TELEX 05-29619 (PATHE)

33 175/6 t / wa

- 3 -

BYDGOSKIE BIURO PROJEKTOWO-BADAWCZE BUDOWNICTWA PRZEMYSLOWEGO, BYDGOSZCZ / POLAND

Cleaning system

The invention relates to a cleaning system for water or waste water with flocculation fixed in a housing chamber and a settling chamber.

Previously known cleaning systems of this type work according to the principle of "volumetric" coagulation so-called "sedimentation plates". This principle will

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realized in a multi-flow sedimentation basin. the Flocculation chambers are equipped with paddle stirrers or constructed as hydraulic units in the form of corrugated sheets. A surface water purification system is known of the Dutch company "Pielkienrood Vimitex BV", which consists of a hydraulic flocculation chamber, a multi-flow settling basin and additional equipment, such as pumps for recirculating the sludge and a sludge container. The hydraulic flocculation chamber forms a container equipped with corrugated sheets arranged vertically in three rows, the form three working sections.

Furthermore, a system for the partial cleaning of surface water from the German company "Passavant" is known, wherein the mechanical flocculation chamber is combined with a multi-flow settling basin in one to the longitudinal axis symmetrical arrangement, which two parallel flow stretches of the coagulation process and forms water subjected to the sedimentation process. The agitation chamber is in two parts with a transverse partition divided. A mechanical stirrer is arranged in each of these parts.

The object of the present invention is to develop a cleaning system of the type described at the outset in such a way that that it does not have the disadvantages of known cleaning systems while maintaining their advantages.

According to the invention, this object is achieved by that the flocculation chamber has a trapezoidal bottom

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Has cross-section and is separated from the settling chamber with a wall and a construction wall, which form an overflow gap, where the flocculation came mer in their lower part supply lines with against the ground has directed holes and on the floor in the chamber axis in the longitudinal direction of the supply lines Projection of triangular cross-section is provided, over which one of the side walls with pockets for recirculation separated mesh insert is attached, which ends in the lower part with guide plates.

According to an advantageous development, the settling chamber has a settling space in its lower part Sludge drain on, and in its middle part a counter-flow multi-flow package, as well as a drainage channel for the clarified liquid in its upper part.

The cleaning system according to the invention eliminates the mechanical Means for agitating the liquid and for recirculating the sludge. It enables that fixed units in a common set of sections and allows a compact construction of the system, as well as the installation in elements with limited space, such as containers.

The invention is explained in more detail below using an exemplary embodiment. In the accompanying drawing show:

1 shows a vertical section of the installation, and FIG. 2 shows a section in the plane A-A of FIG.

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The inventive cleaning system for water or wastewater is built into a common housing that a flocculation chamber 1 and a settling chamber 2 contains. The flocculation chamber 1 has a bottom with a trapezoidal cross-section and is separated from the settling chamber 2 by a Overflow wall 3 and a construction wall 4 separately, which form an overflow gap 5 in the middle part. in the lower part of the flocculation chamber 1 are two supply lines 6 in the form of perforated tubes with against the bottom directed holes housed. At the bottom of the flocculation chamber is in the chamber axis along the lines 6 a projection 7 is arranged with a triangular cross-section. Above the trapezoidal floor is one of attached to the side walls 9 with pockets 10 for recirculation separate braid insert 8. The deposit 8 runs 11 forming in its lower part in inclined guide plates Panels off. The settling chamber 2 has in its lower part a unilaterally inclined settling space 12, at which A sludge drain 13 is installed at the lowest point. In the middle part of the settling chamber 2, there is a counter-flow, multi-flow package 14 built in. In the upper part of the settling chamber 2 is a drainage channel 15 for the clarified Liquid arranged in the form of a perforated tube. The entire construction is mounted on feet 16, which allow the system to be set up at any location.

The liquid to be subjected to the cleaning process is transferred to the flocculation chamber 1 via the pressure lines 6 supplied together with chemical reagents and agents supporting the coagulation process. Because of of the arranged on the floor projection 7 becomes a

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intensive stirring effect is achieved, which starts the rapid mixing process of the reagents in the pressure line of the liquid together with the sludge flowing through the overflow pockets 10. After Intensive mixing at the bottom of the plocking chamber 1, the liquid flows from the bottom up through the Layers of the braid insert 8, which are arranged horizontally. The braid insert 8 excites a slow pulsating movement for the flowing liquid and its currents in the entire volume of the flocculation chamber. After the coagulation process, the liquid enters the settling chamber 2 via the overflow edge and the gap 5 passed under the countercurrent package 14. The thickened one Sludge flows from the package 14 into the settling room 12, from which it is discharged via line 13. After clarification, the liquid is via the drainage channel 15 to further processing discharged.

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Claims (1)

HOFJFMÄNW · EITXJE άί PARTNER 3009707 PAT E N TAN WALTE DR.! NG. E. HOFFMANN (1930-1976) DIPL.-ING. W.EITLE. DR. RER. NAT. K. HOFFMANN. DIPL.-ING. W. LEHN DIPL.-ING. K. FOCHSLE DR. RER. NAT. B. HANSEN ARABELLASTRASSE 4 (STERNHAUS) D-8000 MÖNCHEN 81 TELEPHONE (089) 911087. TELEX 05-29619 (PATHE) 33 175/6 t / wa BYDGOSKIE BIURO PROJEKTOWO-BADAWCZE BUDOWNICTWA PRZEMYSLOWEGO, BYDGOSZCZ / POLAND Cleaning plant PATENT CLAIMS 1. Purification system for water or wastewater with a flocculation chamber and one fixed in a housing Settling chamber, characterized in that the flocculation chamber (1) has a trapezoidal bottom Has cross section and opposite the settling chamber (2) with a wall (3) and a construction wall (4) is separated, which form an overflow gap (5), the flocculation chamber (1) 030051 / Ό627 has in its lower part supply lines (6) with holes directed towards the floor and on the bottom in the chamber axis in the longitudinal direction of the supply lines (6) a projection (7) with a triangular Cross section is provided over which one of the side walls (9) with pockets (10) for recirculation separated mesh insert is attached, which ends in the lower part with guide plates (11). Plant according to claim 1, characterized in that the settling chamber (2) in its lower part a settling room (12) with sludge drain (13), and in its middle part with a countercurrent multi-flow package (14), as well as in its upper part is equipped with a drainage channel (15) for the clarified liquid. 030051/0627