Apparatus for sedimentation of solid impurities from liquids专利检索-液体污染物有毒废料污染与排放控制专利检索查询-专利查询网

Apparatus for sedimentation of solid impurities from liquids

阅读：214发布：2023-08-29

专利汇可以提供Apparatus for sedimentation of solid impurities from liquids专利检索，专利查询，专利分析的服务。并且A method of multistage continuous sedimentation and separation of solids from liquids consists in guiding the main stream of contaminated liquid through a succession of stages preceding under common hydraulic pressure. In this succession liquid is caused to follow an inclined path and to pass alternately through laminar flow areas where settling of solids takes place, and through turbulent flow areas where agglomerating of finer particles, particularly under dosing of chemical coagulants, occurs. In the successive stages the upward flow rate of the liquid is progressively reduced and successively finer solids thus caused to settle therein. The progressive reducing of the liquid flow rate is achieved by regulating of withdrawal of the cleaned liquid from the single stages to a value which is equal or smaller than the minimum sedimentation rate of solids that are to be separated in the corresponding stage. An apparatus for carrying out the multistage continuous sedimentation comprises a plurality of separate compartments having an identical cross sectional area and conforming oblique bottoms. The compartments are installed one above another in a common enclosure. The waste liquid to be cleaned is admitted to the uppermost compartment and the clarified liquid portion discharged from the top parts of the single compartments towards a common take-off level. The individual compartments are interconnected by means of overflow gaps defined by overlapping bottom sections thereof.，下面是Apparatus for sedimentation of solid impurities from liquids专利的具体信息内容。

权利要求

1. An apparatus for multistage continuous sedimentation and separation of solids from liquids, comprising in combination: A. an upright outer shell having a rectangular cross section, said shell bounding a hollow internal space; B. a cover removably closing said hollow internal space from the upper side; C. an oblique bottom closing said internal space on the opposite lower side, said bottom consisting of two sections, an upper section and a lower section, said sections meeting in a straight line with each other to form an obtuse angle the upper section of which is larger than the lower section; D. a plurality of inner bottoms substantially parallel to said outer bottom and conforming therewith, a. said inner bottoms dividing the internal space into a succession of separate compartments installed one above another, and b. each of said inner bottoms consisting, similarly like that outer bottom, of two sections, an upper section and a lower section, E. a plurality of baffles parallel to said upper section of the inner bottoms, a. said baffles overlapping, respectively, the lower portions of said upper sections in a vertically spaced manner so as to leave longitudinal gaps for interconnecting the adjacent compartments therebetween, each of said gaps having an inlet mouth and an outlet mouth; F. means for supplying the uppermost compartment with the contaminated liquid to be treated in the apparatus, said means consisting of a. a longitudinal tubular distributing means, said distributing means extending horizontally along the longest wall of the upright outer shell and being provided with at least one inlet socket for admitting the contaminated liquid thereto, b. a profiled shield surrounding said distributing means, 1. said shield having its upper edge fixed to said longest wall, while the lower edge thereof being spaced apart from said wall so as to leave a longituDinal overflow gap therebetween, 2. said shield and said longest wall bounding a liquid deflecting and gas releasing chamber round said distributing means; G. means for collecting and discharging the clarified liquid from the individual compartments, said means consisting of a. a horizontal overflow channel for withdrawal of clarified liquid from the uppermost compartment, said overflow channel extending transversely over the top part of said uppermost compartment, b. a plurality of elongated overfall means for withdrawal of clarified liquid from the next compartments, said overfall means being arranged in the uppermost parts of said next compartments, respectively, c. a plurality of draw-off tubes for discharging the clarified liquid from said overfall means, d. a collecting receiver adjacent to the top part of the uppermost compartment, in which receiver both the overflow channel and the draw-off tubes terminate, said receiver being further provided with an outlet socket; H. means for discharging the concentrated sludge from the lowermost part of each of the compartments.

2. said shield and said longest wall bounding a liquid deflecting and gas releasing chamber round said distributing means; G. means for collecting and discharging the clarified liquid from the individual compartments, said means consisting of a. a horizontal overflow channel for withdrawal of clarified liquid from the uppermost compartment, said overflow channel extending transversely over the top part of said uppermost compartment, b. a plurality of elongated overfall means for withdrawal of clarified liquid from the next compartments, said overfall means being arranged in the uppermost parts of said next compartments, respectively, c. a plurality of draw-off tubes for discharging the clarified liquid from said overfall means, d. a collecting receiver adjacent to the top part of the uppermost compartment, in which receiver both the overflow channel and the draw-off tubes terminate, said receiver being further provided with an outlet socket; H. means for discharging the concentrated sludge from the lowermost part of each of the compartments.

2. An apparatus as set forth in claim 1, wherein the upper portions of the baffles are deflected upwardly to form a funnel-like inlet mouth of the respective overflow gap.

3. An apparatus as set forth in claim 1, wherein deflector means project downwardly from the lines in which the baffles meet with the lower sections of said inner bottoms, and project downwardly from the fictive line on said longest wall that faces the free lower edge of the shield, said deflector means being bent upwardly round the adjoining overflow gaps.

4. An apparatus as set forth in claim 1, wherein elongated tubular means for supplying and distributing of chemical coagulants are arranged in the funnel-like mouth of at least one of the overflow gaps.

5. An apparatus as set forth in claim 1, wherein the outlet mouths of the overflow gaps are made adjustable.

6. An apparatus as set forth in claim 1 wherein regulating means are provided, respectively, on upper borders of the draw-off tubes inside the collecting receiver, said regulating means providing for the adjusting of the peripheral overfall upper edges of said draw-off tubes.

7. An apparatus as set forth in claim 1, wherein the internal spaces of the individual compartments are divided into three functional areas, in sludge sumps bounded by the lower bottom sections, settling areas bounded by the overfall gaps and clarifying areas bounded by the upper bottom sections, and wherein said clarifying areas are divided, respectively, by means of at least one partition wall parallel to said upper bottom sections into several narrow settling chambers.

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Apparatus for sedimentation of solid impurities from liquids

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