CN102228759A

CN102228759A - Sewage filter

Info

Publication number: CN102228759A
Application number: CN2011101734530A
Authority: CN
Inventors: 韦志锋; 兰夕盈; 曾小波; 曾东健; 卢志文; 周燕; 梁洁; 肖林虎; 赵鸿雁
Original assignee: Chongqing University of Science and Technology
Current assignee: Chongqing University of Science and Technology
Priority date: 2011-06-26
Filing date: 2011-06-26
Publication date: 2011-11-02
Anticipated expiration: 2031-06-26
Also published as: CN102228759B

Abstract

The invention provides a sewage filter, which synthesizes a shallow tank theory, a dynamic coagulation theory, an accelerated coagulation theory and an inclined plate technology, has the advantages of high sedimentation capacity, good water power condition, high sedimentation efficiency, stable sedimentation effect, improved surface load of a vertical flow type sedimentation tank and convenience for maintenance, and effectively solves the problem of easiness in blockage of the traditional inclined plate (pipe) sedimentation technology. The sewage filter is used for subdividing raw motion water through by using filter masks and a plurality of through hole structures to ensure the uniform distribution of a water flow, wherein the filter masks are arranged at equal intervals, and the plurality of through hole structures are arranged on the filter masks; and the raw water forms stable eddies at rear edges of plate holes of filter mask bodies through utilizing the characteristic of a fluid for forming high-speed rotating eddies at the back of an obstacle or at a recessed position. Under the entrainment action of the eddies, non-fluidic substances in the raw water are collected at centers of the eddies and get in continuous contact and collision with one another in eddy cores to undergo a flocculation reaction; flocs grow larger and larger in mass and size under the repeated extrusion action of the rotating fluid and finally settle in large-mass particles; and a thin mud layer accumulated on the surface slides down along the mask bodies under the gravity action to settle into a mud collecting hopper, so that the purposes of removing suspended substances in the raw water and cleaning a water body are achieved. The sewage filter can rotate around an axis of a rotating shaft; and a strongly turbulent shear flow is formed through left and right repeated quick rotation to scour an inclined plate at a high speed and to clean possible deposits and blockages very conveniently.

Description

Effluent filter

Technical field

The present invention relates to a kind of precipitation process that can accelerate sewage disposal, clarification water body, the effluent filter of raising wastewater treatment efficiency.

Background technology

Vertical sedimentation basin is a kind of important sewage treatment structure, and it is little to have floor space, and the convenient and many advantages such as contact flocculation and the interception of sludge suspension layer of spoil disposal are highly suitable for middle-size and small-size sewage disposal system.But its tank depth is big, and it is not strong that water yield impact load and water temperature are changed adaptive capacity, water distribution usually occurs, the unequal phenomenon of catchmenting, the sedimentation effect instability; The footpath, pond is unsuitable excessive.

The advantage of swash plate, inclined tube-type sedimentation basin is that desilting area is big, the hydraulic load height, the efficient height is more than a times of other sedimentation basins, takes up an area of few, save the investment of civil engineering, stable, safe and reliable, but swash plate and inclined tube very easily stop up the influence precipitation, cause the maintenance management operational difficulties, the also greatly big scope of application that has limited it.

Summary of the invention

Excessive deeply in order to solve the vertical sedimentation basin pond, water yield impact load and water temperature are changed the not strong and traditional swash plate of adaptive capacity (pipe) mud takes place easily to be sticked, stops up, influence the defective of sedimentation effect, effluent filter combines shallow pool theory, dynamic coagulation, quickens flocculation principle and swash plate technology, utilize the equidistant filtration cover body of arranging and on numerous through-hole structures the motor water cut is carefully drawn, guarantee that current evenly distribute; Utilize simultaneously fluid behind barrier or recess form the characteristic of rotating whirlpool at a high speed, make former water produce stable whirlpool at filter mantle through hole trailing edge.Under the effect of entrainmenting of whirlpool, the non-fluid substance in the former water gathers the whirlpool center, constantly contacts in vortex core, collides, and binds, and flocculation reaction takes place.Flco is through the squeezing action repeatedly of rotating fluid, and its quality and size are increasing, at last with big quality particles settling.The thin mud layer that the surface is gathered relies on the gravity effect along the landing of cover body inclined-plane, sinks to sludge hopper.Remove suspended material in the former water thereby reached, the purpose of cleaning water body.

The structure of the equidistant periodic arrangement of multilayer makes flocculation reaction, shallow pond precipitation process circulate repeatedly and carry out, and suspended material is constantly removed, and purification efficiency improves greatly.

Effluent filter axis around the shaft rotates.By left-right rotation repeatedly fast, form the shear flow of strong turbulence, can cause the high speed souring to filtering cover body, removes possible alluvial, obstruction is very convenient.

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

Several shapes are identical, and structure is identical, cover body hollow filter mantle is arranged in parallel vertically, and the centre is passed through with rotating shaft connection and fixing; Filter mantle quantity is no less than 1, and adjacent filtration is covered with spacing; Have regularly arranged through hole on the cover; Through hole is evenly distributed embarking on journey radially, along circumferentially being equally spaced.

The filter mantle shape is round table-like, or billiard table shape or spherical crown shape.

Filter mantle cover body hollow, no bottom surface, round table-like and upper bottom surface billiard table shape filter mantle is a wheel hub structure.

Rotating shaft is a hollow shaft structure.

The filter mantle shape of through holes is triangle, rhombus, rectangle, butterfly shape, circle, ellipse, quadrangle, pentagon, hexagon, polygon or symmetrical curve figure.

Adjacent filter mantle through hole and cover plate interlaced arrangement.

Filter mantle is made of some staggered stack combinations of assembly that have wheel hub and fan-shaped cover.

The invention has the beneficial effects as follows that flocculation reaction is abundant, the water outlet ss suspended solid reduces greatly; Improve the desilting area of unit occupied area, hydraulics is good, the deposition efficiency height, and sedimentation effect is stable; It is dark to effectively reduce the pond; Improve surface, pond load; Reduce floor space; Not deposition is not stopped up, and removes long-pending the silt conveniently, has thoroughly overcome the easy blockage problem of traditional swash plate (pipe) sedimentation.

Description of drawings

Below in conjunction with drawings and Examples invention is further specified.

Fig. 1 is the axial cutaway view that the present invention uses in vertical sedimentation basin.

Fig. 2 is the stereogram of the present invention of 6 layers of filter mantle structure.

Fig. 3 is the axial cutaway view of the present invention of 6 layers of filter mantle structure.

Fig. 4 is the stereogram of the present invention of 1 layer of filter mantle structure.

Fig. 5 is independent filter mantle stereogram.

Fig. 6 is the axial cutaway view of independent filter mantle.

Fig. 7 is the stereogram of the assembly that is made of wheel hub and 140 ° of fan-shaped covers.

Fig. 8 is the stereogram of a filter mantle being combined by three of assemblies shown in Figure 7.

Fig. 9 is the filter mantle being combined by three of assemblies shown in Figure 7 and the stereogram of rotating shaft.

Among the figure: 1. pond body 2. sewage 3. center water inlet pipes 4. reflecting plates 5. apopores 6. effluent weirs 7. effluent troughs 8. precipitation dirts 9. are store buckets 10. discharge pipelines 11. filter mantles 12. rotating shafts 13. through holes 14. substrates 15. wheel hubs 16. fan-shaped covers

The specific embodiment

In the embodiment shown in fig. 1, the present invention is enclosed within outside the sewage water inlet pipe of center, by stent support.Sewage is entered in the pond from top to bottom by the water inlet pipe that is located at the center, pond, and pipe umbrella-shaped baffle down evenly spreads the waste water level, is subjected to the cover body spatial constraints, and former water is assembled under the cover, upwards flows by equally distributed through hole.Because the orifice plate effect, former water is filtering cover body through hole trailing edge generation whirlpool.Under the effect of entrainmenting of whirlpool, the non-fluid substance in the former water gathers the whirlpool center, constantly contacts in vortex core, collides, and binds, and flocculation reaction takes place.Flco is through the squeezing action repeatedly of rotating fluid, and its quality and size are increasing, at last with big quality particles settling.So the through hole on the cover just has been configured to turbulent eddies flocculation microreactor one by one.The micro-vortex yardstick that produces when through hole or when equating flocculation reaction fullest close with the alumina blossom particles yardstick, flocculating effect the best; Vortex quantity is many more, and voorticity is big more, and dirt separation must be thorough more, and alumen ustum is also closely knit more.

Owing to carry out adjacent cover body through hole and cover plate interlaced arrangement, be in through hole runner center and be difficult for being bumped with the top layer cover plate by the particle of vortices entrain front.Because near the boundary layer viscosity the solid wall surface is big, covered the wall shape simultaneously and hindered, moving particle and cover plate have realized that collision is static, promptly particle come-up movement velocity is instantaneous is reduced to zero.Stall particle or stick to the cover wall and constitute the sludge suspension layer is waited for constantly motion and the particle that comes through constantly collision, binds of interception, and volume is swept, net is caught, and gathers into the closely knit floc sedimentation sedimentation of big quality at last.Partly particle is avoided positive mask wall motion with streaming break-in, and its rising kinetic energy reduces.The particle that energy reduces is then very easily entrainmented in next section flow process or is tackled filtration.

The long and narrow space that two cover bodies form constitutes a shallow layer precipitating pond, and the heavy mud of former water and sedimentation moves mutually and separates at each precipitation shallow-layer.

The thin mud layer that the cover body surface precipitation gathers relies on the gravity effect along the landing of cover body inclined-plane, sinks to sludge hopper.

The filter mantle structure of the equidistant periodic arrangement of multilayer makes flocculation reaction, shallow pond precipitation process circulate repeatedly and carry out, and suspended material is constantly removed in the former water, and purification efficiency improves greatly.

Effluent filter axis around the shaft rotates.When safeguarding, by rotating shaft apace, can form the shear flow of strong turbulence at through hole and cover, cause the high speed souring to filtering cover body, removes possible alluvial, obstruction is very convenient.

Claims

1. effluent filter, it is characterized in that: several shapes are identical, and structure is identical, cover body hollow filter mantle is arranged in parallel vertically, and the centre is passed through with rotating shaft and is connected and fixing; Filter mantle quantity is no less than 1, and adjacent filtration is covered with spacing; Have regularly arranged through hole on the cover; Through hole is evenly distributed embarking on journey radially, along circumferentially being equally spaced.

2. effluent filter as claimed in claim 1 is characterized in that: described filter mantle shape is round table-like, or billiard table shape or spherical crown shape.

3. effluent filter as claimed in claim 1 is characterized in that: described filter mantle cover body hollow, and no bottom surface, round table-like and upper bottom surface billiard table shape filter mantle is a wheel hub structure.

4. effluent filter as claimed in claim 1 is characterized in that: described rotating shaft is a hollow shaft structure.

5. effluent filter as claimed in claim 1 is characterized in that: described filter mantle shape of through holes is triangle, rhombus, rectangle, butterfly shape, circle, ellipse, quadrangle, pentagon, hexagon, polygon or symmetrical curve figure.

6. effluent filter as claimed in claim 1 is characterized in that: described adjacent filter mantle through hole and cover plate interlaced arrangement.

7. effluent filter as claimed in claim 1 is characterized in that: described filter mantle is made of some staggered stack combinations of assembly that have wheel hub and fan-shaped cover.