CN2532066Y - Two-purpose settle pound for sewage treatment - Google Patents

Abstract

The utility model relates to a two-purpose clarifier tank for sewage treatment, which is composed of two sets of separating systems removing floating type impurities and precipitated impurities on the water surface. The two-purpose clarifier tank for sewage treatment can simultaneously realize the separation process of the floatation impurities and the precipitated residues in one tank. A gas dissolving device is arranged on a water inlet pipe. An oil collection chamber arranged in an oil collection device has a base cone barrel type and a long rectangle type, and the body side is provided with a V-shaped hole. A steel cylindrical vertical autonomous device, namely a secondary separator, is connected outside the clarifiertank to make the oil and the water obtain the best mechanical separation. The two-purpose clarifier tank for sewage treatment has the advantages of reasonable design, compact structure, occupation land and space saving, simple operation management, high efficiency, low cost, no secondary pollution and high industrial applicability.

Description

Dual-purpose sewage disposal settling pond

Technical field

The utility model relates to a kind of device that sewage is carried out simultaneously the processing of flotation and precipitate and separate.

Background technology

The impurity that often contains various ways such as dissolving class, mechanical, colloidal type, fungus algae, suspension class in the sewage.Only effective when utilizing coacervating clarification to separate to precipitated impurities (true relative density overweights water), suspension class impurity (true relative density is lighter than water) should use come-up or aerating to assist the equipment of come-up principle, and this is two kinds of different structure type, dissimilar settling pond.Impurity is a kind of in these two kinds of separate tanks upwards floats, a kind of downward precipitation, and direction is completely contradicted, and impurity is by two different positions discharges up and down.In the prior art, when existence simultaneously in the sewage needs precipitate and separate and choosing to float isolating impurity, often need, just can carry out separating treatment two kinds of impurity with two settling pond series operations.Separate removing the method for suspension class impurity such as water surface buoyant grease, generally is in oil-collecting place a plurality of oil skimmer vessels along the center rotation to be set the water surface oil slick to be scooped in the oil skimmer vessel, flows out outside the pond along pipeline again.This method needs a whole set of rotating machinery, and equipment is huge, cost is high.If with it with the device assembles of precipitate and separate impurity together, not only strive region, center, pond mutually with the latter's stirring mud scraper, the operational trouble rate is higher, and efficient is low, water amount is big in the separating oil.

The utility model content

The purpose of this utility model is to contain broad variety impurity in the water, has not only needed come-up to separate but also when needing precipitate and separate, needn't adopt two complete equipments, only just can reach simultaneously with this equipment and remove suspension slag and following double effects except that precipitation slag.And, when scum silica frost is the non-foam class suspended solid of grease or other, do not need mechanical rotation oil skimming equipment, can reach separating and recovery of oil skimming effect and profit.

The technological approaches that the utility model is taked is that equipment is made up of the two cover separation systems of removing floating on water class impurity and removal precipitated impurities.Whole plant mainly comprises water inlet pipe, mixing section, reaction chamber, diversion chamber, clarification reality, motor and speed reduction unit, whipping appts, water leg, rising pipe, mud discharging device, gas dissolver, oil recovery appts. and profit second separator.Gas dissolver is installed on the water inlet pipe, and being one is that the pressurized air of 0.2～0.6MPa dissolves in the equipment in the water in advance with pressure.Described reaction chamber diameter j=1500～4000mm, the diameter k=2000～6000mm of diversion chamber, reaction chamber to Chi Ding apart from l=500～2000mm.The gathering room of described oil recovery appts. has two types, and a kind of is the base cone round tube type, and another kind of is long rectangle.V-shape hole is opened in the cylindrical shell side of base cone round tube type gathering room, and the last wide of hole is a=2～10mm, height b=5～100mm, base angle i=5 °～30 °; Long rectangular set grease chamber keeps flat along the water surface, and the side is dull and stereotyped or little arc, opens V-shape hole on the plate, size and above-mentioned same.Statocyst is established in the termination of long rectangular set grease chamber, and built-in weight is positioned at the correct position of the water surface to regulate weight with maintenance V-shape hole (32), and keeps the four sides balanced.Described second separator is the vertical self-contained system of steel round shape that is arranged on outside the pond, top diameter is less, following diameter is bigger, the centre has the transition reducing to link mutually, bottom drum diameter d=500～2500mm, height e=1000～5000mm, top cylinder diameter e=200～1500mm, total height f=2000～8000mm, the middle part is the taper connection top and the bottom, fluid inlet is positioned at doffing middle part, and water outlet is positioned at the nearly bottom of doffing, the middle part that separating of oil mouth is positioned at top cylinder apart from top cover apart from g=200～2000mm place.The yield of second separator becomes 1: 2 with the residence time of second separator～10 relation.

Technique effect of the present utility model is the broad variety impurity that contains in water, when needing the separating of come-up and precipitation both direction, two equipment be needn't adopt, only flotation impurity and two kinds of sepn processes of precipitation body refuse just can in same pond, be realized with a playscript with stage directions equipment.This equipment does not rotate oil skimming machinery and supporting oil skimming equipment, just can overcome the surface tension of oil or water effectively, utilizes its diffusibility, makes it to assemble in the gathering room that flows into oil recovery appts. automatically, reaches the effective of oil skimming effect and profit and separates and recovery.This equipment design is reasonable, and compact construction is saved and taken up an area of and the space, streamlining management and working cost, and the efficient height, cost is low.Simplify technology, saving equipment and investment reduce operational trouble and maintenance workload.The mechanical separation of oil and water The Gift of Being the Best You Can Be in second separator, substantially there is not oil slick in the water, the Water in oil rate reaches the optimum regime of mechanical separation, and once or the secondary separation process additionally do not add medicament or other auxiliarys, character to profit does not make a difference, so separation back oil and water can utilize once more.After the moisture oil slick of being collected by oil recovery appts. on settling pond diversion chamber surface enters the profit second separator, separate once more after the long period leaves standstill, water and oil do not leak, and do not produce to external world and pollute, and water and oil base originally do not lose.

Description of drawings

Figure one is one-piece construction figure of the present utility model.Wherein, 1-pool wall; 2-water inlet pipe; 3-mixing section; 4-reaction chamber; 5-diversion chamber; 6-clarifying chamber; 7 and 8 and 11 and 2-motor and speed reduction unit; 9-stir shaft; 10-stirring rake; 14-scrape the mud wall; 15-flocculation agent chemicals dosing plant; 16.-bridge shape; 17.-water leg; 18.-rising pipe; 19.-degasser; 20.-inclined tube device; 21. mud discharging device in the-body; 22.-external mud discharging device; 23.-suspension body refuse collector; 24.-active sludge chamber; 25.-gas dissolver; 26.-oil recovery appts.; 27.-oil outlet pipe 28.-second separator; 29.-fluid inlet; 30.-separating of oil mouthful; 31.-water outlet.

Fig. 2 is the structural representation of oil recovery appts. gathering room.Wherein, 26-1-long square gathering room; 26-2-statocyst; 26-3-oil slick is through the duct; 26-4-base cone cylinder gathering room.

Embodiment

Below in conjunction with drawings and Examples the utility model is elaborated.

Gas dissolver in this equipment (25) is installed on the water inlet pipe (2).Gas dissolver is to be that the pressurized air of 0.2～0.6MPa dissolves in the equipment in the water in advance with pressure.Mixing section (3) is positioned at the bottom of equipment, is reaction chamber (4) above it.The diameter j=3000mm of reaction chamber (4), the diameter k=4000mm of diversion chamber (5), reaction chamber to Chi Ding apart from l=1200mm.Processed water is entered by middle part, pond (2), after gas dissolver (25) inflation, enter in the reaction chamber (4) by water inlet pipe (2), flow on the current direction, gaseous diffusion soluble in water is come out, become oil slick or other suspended impurities in small bubbles gathering and the drive water, forming with water has bigger density difference to quicken come-up, radially around the upper edge that current leave reaction chamber (4) turns to flows and turns to current downflow at once again, and actual herein current have one to turn back, promptly by upwards transferring to downwards, produce centrifugal force upwards,, break away from former contact water body for floatability impurity though this power is very faint, keep up and stay the water surface, highly significant.In this turned back the flow region process, the flow velocity of water had certain variation, can increase the different material of relative density in the separation that has under the centrifugal force existence condition.When adding flocculation agent, flocculation agent in the water inlet, floating matter also can produce certain polymerization, and it is favourable that this phenomenon is separated the lipid floating impurity.

The outer annular space of reaction chamber (4) is diversion chamber (5).Drive in motor and speed reduction unit (7-8,11-12) area and control down whipping appts make sewage along stir shaft (9) tangential direction at mixing section (3) internal rotation, combine with flocculation agent, flow to diversion chamber (5) through stirring rake (10) lifting by top and flow downward again.Scrape mud wall (14) in this process and will be deposited in the middle of body refuse at the bottom of the pond scrapes at the bottom of the pond, mud discharging device in body (21) is discharged outside the pond, is being drained by external mud discharging device (22).The suspension body refuse is collected by body refuse collector (23), in active sludge chamber (24) deposition, is discharged by mud discharging mouth.

Separated grease swims in the surface of diversion chamber (5), can not flow to exhalant region and go.

Oil recovery appts. (26) places on the water-oil interface of the oil slick that is separated in the diversion chamber (5).The gathering room of oil recovery appts. (26) has two types, and a kind of is base cone round tube type (26-4), and another kind of is long rectangle (26-1).V-shape hole (26-3) is opened in the cylindrical shell side of base cone round tube type gathering room (26-4), and the last wide of hole is a=6mm, highly is b=50mm, base angle i=20 °.Long rectangular set grease chamber (26-1) keeps flat along the water surface, and the side is dull and stereotyped or little arc, opens V-shape hole (26-3) on the plate, size and above-mentioned same.Statocyst (26-2) is established in the termination of long rectangular set grease chamber (26-1), and built-in weight is positioned at the correct position of the water surface to regulate weight with maintenance V-shape hole (26-3), and keeps the four sides balanced.Oil recovery appts. (26) overcomes the surface tension of oil or water, utilize its diffusibility, make oil slick assemble automatically inflow through duct (26-3) enter the gathering room (26-1) of oil recovery appts. (26) or (26-4) in, the oil outlet pipe through being connected the gathering room bottom (27) is to profit second separator (28).

Profit second separator (28) is independent setting that is positioned at outside the pond.It is a vertical configuration of steel round shape, above diameter less, below diameter bigger, the centre has the transition reducing to link to each other.Bottom drum diameter d=1500mm, height e=3000mm, top cylinder diameter e=900mm, total height f=5000mm, the middle part is the taper connection top and the bottom, fluid inlet (29) is positioned at doffing middle part, and oily water outlet (31) is positioned at the nearly bottom of doffing, the middle part that separating opening (30) is positioned at top cylinder apart from top cover apart from the g=1000mm place.After the moisture oil slick of being collected by oil recovery appts. (26) from settling pond diversion chamber (5) surface enters the profit second separator, leaving standstill down in the long period, profit separates once more, the water of lower floor is constantly assembled and is sent by water outlet (31), the oil slick on upper strata accumulates gradually and increases, when reaching sufficient amount, overflow recovery by separating of oil mouthful (30).Water and oil do not leak like this, do not produce to external world to pollute, and water and oil base originally do not lose.

Oil recovery appts. (26) realize to reduce water oil ratio, collects moisture fluid continuously, is stored in to carry out profit in the second separator (29) and separate at last, and the residence time of yield and second separator becomes 1: 2～10 relation.

Claims (2)

1. dual-purpose sewage disposal settling pond, form by the two cover separation systems of removing floating on water class impurity and removal precipitated impurities, whole plant mainly comprises water inlet pipe, mixing section, reaction chamber, diversion chamber, clarifying chamber, motor and speed reduction unit, whipping appts, water leg, rising pipe, mud discharging device, gas dissolver, oil recovery appts. and profit second separator, it is characterized in that the diameter j=1500～4000mm of reaction chamber; Diameter k=2000～the 6000mm of diversion chamber; Reaction chamber to Chi Ding apart from l=500～2000mm; The gathering room that is arranged in the oil recovery appts. has two types, and a kind of is the base cone round tube type, and another kind of is long rectangle, and V-shape hole is opened in the cylindrical shell side of base cone round tube type gathering room; Long rectangular set grease chamber keeps flat along the water surface, and the side is dull and stereotyped or little arc, opens V-shape hole on the plate, and the last wide of two types of gathering room V-shape holes is a=2～10mm, height b=5～100mm, base angle i=5 °～30 °; Statocyst is established in the termination of long rectangular set grease chamber, is positioned at the correct position of the water surface to keep V-shape hole; Described second separator is the self-contained system that is arranged on outside the pond, be a vertical configuration of steel round shape, above diameter less, below diameter bigger, the centre has the transition reducing to link to each other, bottom drum diameter d=500～2500mm, height e=1000～5000mm, top cylinder diameter e=200～1500mm, total height f=2000～8000mm, fluid inlet is positioned at doffing middle part, and water outlet is positioned at the nearly bottom of doffing, the middle part that separating of oil mouth is positioned at top cylinder apart from top cover apart from g=200～2000mm place; The yield of second separator becomes 1: 2 with the residence time of second separator～10 relation.

2. dual-purpose sewage disposal settling pond according to claim 1 is characterized in that being equipped with a gas dissolver on water inlet pipe.

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