CN86107912A

CN86107912A - Tubular type water collection uniflow sedimentation device

Info

Publication number: CN86107912A
Application number: CN86107912.4A
Authority: CN
Inventors: 翟砚章; 徐景翼; 沈大年
Original assignee: TIANJIN WATER CO
Current assignee: TIANJIN WATER CO
Priority date: 1986-11-21
Filing date: 1986-11-21
Publication date: 1988-06-01
Also published as: CN1008064B

Abstract

The present invention is the settler that chemical precipitation method is purified waste water.Employing concurrent shallow-layer sloping plate deposition technology with technology and the heavy mud diversion technology of secondary that tubular type is catchmented, solves and produces a difficult problem turbulent and alluvial mud in settler when primary water separates, and makes settler non-stop run expeditiously.

Description

Technical field that the present invention belongs to:

The invention belongs to tap water chemical precipitation purifying processing device, also can be used for the chemical precipitation purifying treatment of sewage or other waste water.

The prior art background:

The same flow precipitation pond claims " Lan Meila " (Lamella) separator abroad, and meaning is interpreted as " shallow-layer unitized construction " separator.Be by Sweden Axel Heiberg Johnson (Axel Johnson) industrial research and silent (Chalmere) university chemistry engineering college of Sweden Charlie joint study, one nine seven 0 year September first, cover commercial " Lan Meila " separator came out in Sweden, be to be used for the municipal effluent tertiary treatment, scale was 3000 cubic meter/days.Domesticly began one's study from 1973, all succeed, " water gathering system " technology of this settling tank is considered as the gordian technique position abroad.

The U.S., Japan, Sweden, France had obtained several patents in recent years aspect " Lan Meila " separator.For example the BHedstrom of Swede adopts the porous rainwater catchment in No. 3494475 patents of the U.S., adopts the open topped rainwater catchment with total header clear water to be discharged then in No. 3552554 patents of the U.S..This patent disadvantage flow velocity between gully-hole place flow velocity and plate differs greatly, and easily carries the precipitation flco secretly, causes eyelet to stop up.The BOForsell of Swede, BHedstrom adopt iris type to catchment in No. 3494475 patents of the U.S. and other patent, its total canal is still in central authorities, this mode is except that the processing and manufacturing trouble, also relate to water distribution and the uniform problem of catchmenting, report is except that branch canal adopts eyelet among the day disclosure special permission communique 51-119167, total canal siphon pipe system, this cover system removes flow velocity and is difficult to balance external.Simultaneously increased siphonic system again, brought trouble (seeing Appendix) to production run.The technology various countries at gordian technique position all maintain secrecy in the above patent.China sends that states such as West Germany, the U.S., France, Sweden, Japan, Italy investigate and expert, the scholar of education do not obtain same flow precipitation gordian technique information to.

Domestic development to the same flow precipitation pond begins to be mostly to adopt " trapezoidal water gathering system " promptly: make catchment total canal and branch canal on swash plate, branch canal is trapezoidal, catchments with eyelet, adopts the perforated pipe spoil disposal at the bottom of the pond.By production application, its shortcoming is that 1. the eyelet flow velocity that catchments causes greater than flow velocity between plate and inhales the band flco; 2. produce the stifled mud of eyelet after moving for some time; 3. the stifled mud of eyelet causes water distribution, catchments inhomogeneously, makes to occur deposition on the swash plate, and deposition must be given and be produced motion and bring serious future trouble between plate.As deposition employing " vibrator ", " long-armed brush ", " mobile nozzle " and modes such as " adjusting lifting capacity " solve between plate in order to overcome in No. 2174896 patents of the U.S. No. 3894955, No. 3494475 and France.These methods can be given and be manufactured, operation all causes difficulty in various degree; 4. mud appears in branch canal, total canal.

The content of invention:

The present invention's design is one group of swash plate shallow-layer same flow precipitation associated plant that adopts the tubular type water gathering system.Each swash plate modular construction such as Fig. 1, Fig. 2, Fig. 3.Fig. 1 left side is the outward appearance overall pattern, comprises swash plate 1, header 2, primary water spacer plate 3.Fig. 1 right side is to remove spacer plate 3 sectional view afterwards, shows the heavy mud flow deflector 4 of secondary between spacer plate 3 and swash plate 1.Fig. 2 is that swash plate 1, header 2 are carefully schemed with the position of the heavy mud flow deflector 4 of secondary.Fig. 3 is swash plate 1, header 2, the heavy mud flow deflector 4 of secondary and spacer plate 3 position side pseudosections.

Detailed description to Fig. 1, Fig. 2, structure shown in Figure 3:

Swash plate 1 is divided into two portions: top is precipitation plate 5, and the bottom is a slip plate 6, and the horizontal sextant angle of slip plate 6 is obviously greater than precipitation plate 5.Spacer plate 3 is between the slip plate 6 of adjacent swash plate, and formation primary water braiding channel 7 between the slip plate 6 above it, and constitutes slip district 8 between the heavy plate of the cunning below it.Header 2 is equally spaced on swash plate 1, and supports as the connection of adjacent two swash plates, and the gap of adjacent swash plate is divided into the equal water channel of sectional area one by one, and braiding channel 7 is inserted in header 2 lower ends, and its upper end guiding primary water is to top general collection tank 9.The heavy mud flow deflector 4 of secondary is wing plates that intersect on two tops, places braiding channel 7, its apical position can the catchment stomidium 10 or the braiding channel 7 of subtend header 2 in midline position between the two adjacent headers 2.Braiding channel 7 is made of spacer plate 3 and the slip plate 6 above it, top is supported as connecting by the heavy mud flow deflector 4 of secondary by header 2, bottom between the two, and be divided into the channel that sectional area equates by it, water channel on every section channel and the precipitation plate 5 partly connects, and is water channel shunting primary water.The channel upper opening is the top perforate 11 of catchmenting, and lower openings is the bottom perforate 12 of catchmenting.Top sea line with the heavy mud flow deflector 4 of secondary in the channel is the boundary, is divided into catchment, top 13 and catchment, bottom 14.The heavy mud water conservancy diversion guide plate 4 of secondary connects spacer plates 3 one sides and becomes certain slope to shrink along spanwise, makes that the spacer plate at this position is angled to be tending towards crossing with the joining slip plate 6 of flow deflector 4 opposite sides, makes the catchment, bottom 14 at this position become doline.

Header on each swash plate unit upper end water outlet total water leg 9 of pegging graft, each water outlet keeps same level.

Structure such as Fig. 4 of every group of sloping plate deposition combination.Fig. 4 is a side cutaway view.

Working of an invention

One, installs

According to calculating, with several swash plate unit of required usefulness as shown in Figure 4 mode to connect be an associated plant integral body.Total water leg 9 is immersed in the settling tank water 15, make the header saliva plane and the settling tank source water water surface arranged in the groove keep a waterhead of forcing water outlet.

Two, use

As shown in Figure 4:

Add flocculation medicine reacted source water and enter settling tank and keep its water level on liquid level 16 positions, the waterhead that keeps forcing its water outlet with header water outlet horizontal plane in total water leg 9.

Source water is divided into prismatic water channel along 1 of swash plate by header 2 and moves downward, and at precipitation plate 5 positions, the mud of flocculation separates with primary water gradually with current coflow and sinking.At the position, upper edge of slip plate 6, the part primary water is because the effect of spacer plate 3, by on the perforate 11 of catchmenting enter the last catchment 13 of braiding channel 7, be directed to total water leg 9 by the header stomidium 10 that catchments.Owing to suddenly strengthen in slip plate 6 position swash plates 1 gradient, the part current make the mud on the precipitation plate enter slip district 8 smoothly simultaneously, and make mud continue the nature sinking.Enter the catchment, bottom 14 of braiding channel 7 with mud separated portions primary water by the perforate 12 of catchmenting down, be directed to total braiding channel 9 by the stomidium 10 that catchments of header 2.The primary water that enters braiding channel 7 from the upper and lower perforate 11,12 of catchmenting still can produce a small amount of flco precipitation before entering header stomidium 10, heavy mud flow deflector 4 this part the sedimentary mud of guiding of secondary under the landing the perforate 12 of catchmenting.Sludge settling concentration compartments 17 at the bottom of the pond is discharged by mud discharging device.

The advantage of invention

The key issue that the present invention solves is in swash plate shallow-layer combination settler, keep under the state of water and flco co-flow, make the flco natural sedimentation and to the landing of pool bottom sludge enrichment region, simultaneously with in the primary water disjoint set, pressure that water-head produces is introduced total water leg to primary water to utilize sedimentation basin source water and settler to catchment, and do not produce turbulent flow, and do not produce the mud alluvial yet, make expeditiously continuous operation of settler.

Claims

1, a kind of swash plate shallow-layer concurrent combination settler is made of some sloping plate deposition plates and primary water gathering system; It is characterized in that described primary water gathering system comprises slip plate 6 spacer plates 7, header 2 and secondary sink mud flow deflector 4, described slip plate 6 is that the swash plate 1 bottom gradient increases part suddenly, described spacer plate 3 is between adjacent two slip plates 6, and this waters is divided into braiding channel 7 and slip district 8, described header 2 is equally distributed between adjacent two swash plates, as connecting to support also the swash plate gap is divided into the water channel that sectional area equates, header 2 inserts braiding channels 7 and breaks away from the slip plate 6 of the swash plate 1 of opposite side, header top water outlet total water leg 9 of pegging graft, each water outlet is maintained at the same horizontal plane, and the heavy mud flow deflector 4 of described secondary is arranged in braiding channel 7.

2, according to claim 1 described settler, it is characterized in that described braiding channel 7 by header 2, flow deflector 4 as connecting to support and constitute between spacer plate 3 and the slip plate 6 above it.

3, according to claim 2 described settlers, it is characterized in that described braiding channel 7 tops are divided into some channels that sectional area equates by header 2, the structure of bottom is made of slip plate 6 and the spacer plate 3 that the heavy mud flow deflector 4 of secondary connects with its both sides, flow deflector 4 becomes certain slope to shrink with the side that spacer plate 3 connects along spanwise, make the slip plate 6 of 3 one-tenth one respective angles of this position spacer plate and flow deflector 4 opposite sides be tending towards crossing, adjacent flow deflector 4, slip plate 6, spacer plate 3 are divided into doline with the braiding channel at this position.

4, according to claim 3 described settlers, it is characterized in that the doline of catchment, described braiding channel 7 bottom can be arranged in the mode of adjacent two flow deflectors, 4 top subtend header stomidiums, the center line between also can subtend two adjacent headers 2 is arranged.