CN102225253A

CN102225253A - Pendular sewage sedimentation acceleration basin

Info

Publication number: CN102225253A
Application number: CN2011100972796A
Authority: CN
Inventors: 韦志锋; 兰夕盈; 曾小波; 曾东健; 叶宏; 卢志文
Original assignee: Chongqing University of Science and Technology
Current assignee: Chongqing University of Science and Technology
Priority date: 2011-04-19
Filing date: 2011-04-19
Publication date: 2011-10-26
Anticipated expiration: 2031-04-19
Also published as: CN102225253B

Abstract

The invention relates to a pendular sewage sedimentation acceleration basin for accelerating the sedimentation process in sewage treatment, clarifying water and improving sewage treatment effect. The movable sedimentation basin body is mounted on a horizontal shaft bracket through a trunnion, and a mechanical tilting device is connected to the basin body. When the sewage reaches a critical state of destabilization, the tilting device is initiated to pendulate the movable basin body into eccentric exercise. By utilizing the fluid deformation property, inertia property, viscosity and boundary characteristics, micro-flocculation core aggregation state and concentration distribution in the critical state of destabilization are altered. Thus, flocculation cores within the local area have increased density and reduced spacing, so that more flocculation cores can adsorb, crosslink and coalesce with each other to form large size and massive flocs and subside. Thus, suspended matters in the water are reduced and the sewage is clarified and purified. The whole sedimentation process takes short time but achieves good effect, and is characterized by low energy consumption, low cost, environmental protection, simple and practicable operation.

Description

Swing type sewage quickens sedimentation basin

Technical field

The present invention relates to a kind of precipitation process that can accelerate in the sewage disposal, the clarification water body, the swing type sewage that improves wastewater treatment efficiency quickens sedimentation basin.

Background technology

Since the reform and opening-up, along with the development of Chinese national economy and the raising of living standards of the people, the sewage quantity of corresponding water consumption and discharging rapidly increases.For administering sewage, country not only issues various regulations, rules, and all kinds of sewage treatment plants in various places also build in succession and put into operation.But because of reasons such as technical matters, funds, the whole nation has 30% sewage treatment plant to fail normally to bring into play benefit.Therefore, research and development cost is low, and speed is fast, efficient is high, the sewage treatment technique of environmental protection, new equipment are the developing direction of sewage disposal industry.

Precipitation is to separate to sink the most simple and economical effective ways of solids in the sewage, is indispensable a kind of technology in all kinds sewage disposal system.But natural sedimentation is not only chronic, and separating effect is undesirable.There is thick and heavy precipitation blocking zone usually in water body, and suspension is many, the water body chaos.In order to accelerate precipitation, people or employing machinery separate or add flocculant, and this has strengthened processing cost again.How to make full use of natural sedimentation, shorten its precipitation clarification time, improve purifying rate?

Summary of the invention

Produce the circumference centrifugal action by tilting equipment swing active pool body, utilize deformation properties, inertial property, viscosity and the border characteristic of fluid, change the little wadding nuclear coherent condition and CONCENTRATION DISTRIBUTION of coagulating of critical " taking off steady " state, make wadding cuclear density increase in the local, spacing reduces, make more, wadding nuclear phase critical condition, subcritical state adsorbs mutually, crosslinked, coalescent, form the flco of large scale, big quality and sedimentation, reduce the suspension in the water body, clarify, purify waste water.

The technical solution adopted for the present invention to solve the technical problems:

Tilting-type sewage quickens sedimentation basin, and it is characterized in that: movable sedimentation basin body mounts on horizontal pedestal by gudgeon, and mechanical tiling arrangement is connected with the pond body.

Tilting equipment is the hydraulic pressure tilting equipment.Tilting equipment is the gear tiling arrangement.Movable sedimentation basin body is connected with the tilting equipment connecting rod by hinge.

The invention has the beneficial effects as follows that free precipitation, flocculation sediment and group shorten dramatically the sedimentation time, sewage treating efficiency improves; Eliminate the precipitation blocking zone, improve clarifying effect, the water outlet ss suspended solid reduces greatly, and water body is made a clear distinction between good and evil, and primary sedimentation is handled promptly can reach the compression precipitating effect; Energy consumption is little, and expense is low, and is simple.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Fig. 1 is a transverse sectional view of the present invention

Fig. 2 is a side view of the present invention

Among the figure: 1. active pool body 2. sewage 3. gudgeons 4. stiffeners 5. apopores 6. effluent weirs 7. effluent troughs 8. sliding bearings 9. plain bearing housings 10. fixed pedestals 11. discharge pipelines 12. precipitation dirts 13. are store buckets 14. reflecting plates 15. center water inlet pipes 16. hinges 17. connecting rods

The specific embodiment

In the embodiment shown in fig. 1, the active pool body is connected with mechanical tiling arrangement by hinge.When sewage reaches when taking off steady critical condition, start mechanical tilting equipment, drive the pond body and swing several times around gudgeon, driving that sewage in the pond does together with the gudgeon is that the reciprocal arc swing at center moves.Because the deformation properties of water, the motion of the suspension wadding nuclear in the water body that moves with the pond body is similar to the reciprocal arc swing around a certain centre of gyration.Far away more from the centre of gyration, the moving displacement in the wadding nuclear cycle that suspends is big more, and its circular motion is big more, and the centrifugal force that circular motion produced is also big more.The centrifugal force that circular motion produced has been broken the balanced system of force on the original suspension wadding nuclear, suspends wadding nuclear under the acting in conjunction of centrifugal force, gravity, quickens sedimentation, is moved to pond body two side lower parts by pool center gradually.

The precipitation blocking zone that natural sedimentation forms is positioned at position, bottom, pond, and away from the centre of gyration, the centrifugal action effect is more remarkable.

Near the pool wall boundary layer fluid is subjected to the viscous effects maximum, hindered by the pool wall shape, and fleece nuclear in border almost completely adheres on the object plane, with the relative velocity of pond body be zero, relative displacement is zero.Assemble near pool wall border gradually from the suspension wadding nuclear that central motion comes, the wadding cuclear density improves gradually, and spacing is more and more littler.Wadding nuclear is assembled, and density improves, and spacing is dwindled, the favourable little absorption of wadding nuclear, crosslinked, coalescent formation large scale, quality, firm, closely knit big flocculating body and precipitate greatly of coagulating.Borderline region is to quicken the main region that precipitation forms near the pool wall.

Pond bottom precipitation flco general size is big, more firm, closely knit.Back and forth fascinate and cause the rate of flow of fluid that streams flco big, produce whirlpool in the flco both sides.Whirlpool is to the effect of entrainmenting of adjacent fluid, intensive little wadding nuclear that coagulates in a large number in vortex core, and density heightens, and has also increased little wadding nuclear that coagulates simultaneously in the contact of vortex core, crosslinked and coalescent, promotes the deposition of flco two side liquid inner suspension things, forms pond bed-sit line shape deposition.At the bottom of protruding grizzly bar structure or pond are set at the bottom of the pond, be wave structure, all can strengthen the whirlpool effect of streaming, accelerate sedimentation of suspension.

Body is rocked to extreme position in the pond, and its motion is transferred.Boundary layer fluid is subjected to viscous effects, and its motion is also transferred immediately.But the pool inner water body is because the deformation properties and the inertial property of fluid, the transfer lag of power and motion, even boundary layer or near the water body it be motion in the other direction, still keep original motion state motion away from the borderline region water body, collide in opposite directions with the different two strands of current of kinetic property in the pond, the suspension from two directions is compiled in narrow striking face zone, the wadding cuclear density increases suddenly, the wadding nuclear separation reduces, add the fluid impact effect, favourable wadding stone grafting touches, polymerization forms the flco that size is big, quality is big.

When stopping the pond body that fascinates, water body is because its deformation properties and inertial property, still can clash into the pool wall several times in reciprocation cycle ground, the wadding nuclear that suspends continues the nearly circular motion to pond body two side shiftings, fluid whirlpool aggtegation, the poly-nuclear of striking face, flocculation are also being proceeded, wadding nuclear is collision, polymerization constantly, and absorption, crosslinked, coalescent mutually constantly forms large scale, big quality, firm, closely knit big flocculating body precipitation.Water body is purified repeatedly, and suspension reduces greatly, and sewage is clarified, purified.

The storage bucket is arranged at the bottom of the pond, is the zone that mud compiles, stores, concentrates and discharge.It swings the centrifugal force maximum that produces apart from centre of gyration gudgeon farthest.Solid particle is in contact with one another in the bucket, and the upper strata particle is extruded the interface with lower floor's particle interstitial fluid under centrifugal force+gravity effect, and solid particle group is concentrated.Therefore, the concentrated effect of swing generation is more remarkable than pure gravity concentrated effect.

Claims

1. a swing type sewage quickens sedimentation basin, and it is characterized in that: movable sedimentation basin body mounts on horizontal pedestal by gudgeon, and mechanical tiling arrangement is connected with the pond body.

2. swing type sewage as claimed in claim 1 quickens sedimentation basin, and it is characterized in that: described tilting equipment is the hydraulic pressure tilting equipment.

3. swing type sewage as claimed in claim 1 quickens sedimentation basin, and it is characterized in that: described tilting equipment is the gear tiling arrangement.

4. swing type sewage as claimed in claim 1 quickens sedimentation basin, and it is characterized in that: described movable sedimentation basin body is connected with the tilting equipment connecting rod by hinge.