CN208320072U - A kind of river and lake pool gushes the mud-settling pit of polluted bed mud processing - Google Patents

Abstract

The utility model belongs to technical field of water environment treatment more particularly to a kind of river and lake pool gushes the mud-settling pit of polluted bed mud processing.The pond body of the mud-settling pit includes the level-one precipitation zone that setting is sequentially communicated along water (flow) direction, two-stage precipitation region and three-level precipitation zone；And partition is equipped in its three-level precipitation zone, there are flow channels between the bottom end of partition and the bottom surface of three-level precipitation zone, three-level precipitation zone is separated into water holding space and hydrostatic sediment space by partition, and water holding space is communicated with hydrostatic sediment space by flow channels water flow.By the way that partition is arranged, originally the water flow vertically flowed is become to the water flow flowed up, reduce the disturbance that water body directly becomes a mandarin to water body in three-level precipitation zone, the appearance of the short flow phenomenon of water body in region is also effectively avoided simultaneously, the hydraulic detention time for reasonably extending mud mixture plays the role of effectively improving the mud-water separation efficiency in mud-settling pit.

Description

A kind of river and lake pool gushes the mud-settling pit of polluted bed mud processing

Technical field

The utility model belongs to technical field of water environment treatment more particularly to a kind of river and lake pool gushes the mud of polluted bed mud processing Starch sedimentation basin.

Background technique

When handling the polluted bed mud that river and lake pool gushes, it is necessary first to use cutter suction dredger, hydraulicking unit And the equipment such as amphibious cutter suction pump clear out polluted bed mud from river, then again by the bed mud being cleaned out through pipeline It is focused on to sludge treatment plant.Since the moisture content of river bottom mud is high, so that into the sludge of sludge treatment plant It is larger, and the treatment scale of sludge treatment plant is limited, and bed mud into the residence time that factory and office set again cannot be too long.Therefore, Into the bed mud of sludge treatment plant, often need to be completed in a short time large-scale muddy water initial gross separation, to meet subsequent sludge Requirement of the treatment process to hydraulic detention time.And traditional mud-settling pit is completed often through hydraulic detention time is extended The mud-water separation process of large volume sludge, therefore it is unable to satisfy requirement of the sludge treatment plant to time restriction；And it is limited to sludge Treatment scale and processing cost make it be also unsuitable for shortening the sedimentation time using flocculant or flocculation aid is added.Therefore, to make Sludge treatment plant reaches the requirement to Treatment of Sludge large-scale production, how to improve the mud-water separation effect of Conventional mud sedimentation basin Fruit has become technical problem urgently to be resolved in the industry.

Utility model content

The purpose of this utility model is to provide the mud-settling pits that a kind of river and lake pool gushes polluted bed mud processing, it is intended to solve The technical problem of the mud-water separation effect difference of Conventional mud sedimentation basin in the prior art.

In order to achieve the above purposes, the technical solution adopted by the utility model is: provides a kind of river and lake pool and gushes at polluted bed mud The mud-settling pit of reason including pond body and is relatively arranged on water inlet end and the water outlet of the pond body two sides, and pond body includes: to be used for The level-one precipitation zone that primary deposition is carried out to mud mixture, the second level for carrying out second of precipitating to mud mixture are heavy Shallow lake region, and the three-level precipitation zone for carrying out third time precipitating to mud mixture；And level-one precipitation zone, second level are heavy Shallow lake region and three-level precipitation zone are sequentially communicated along water (flow) direction to be set between the water inlet end and the water outlet；Wherein, Partition is equipped in three-level precipitation zone, partition is arranged in three-level precipitation zone along the direction perpendicular to water flow, the bottom end of partition There are flow channels between the bottom surface of three-level precipitation zone, three-level precipitation zone is separated into water holding space with partition and hydrostatic sinks Shallow lake space, water holding space are connected with hydrostatic sediment space by flow channels.

Further, the top of the partition of mud-settling pit be higher than between two-stage precipitation region and three-level precipitation zone every The top on dam.

Optionally, between the level-one precipitation zone and two-stage precipitation region of mud-settling pit every dam and two-stage precipitation Multiple deflector holes are equipped with every dam between region and three-level precipitation zone, and close be somebody's turn to do of multiple deflector holes set at the top of dam It sets.

Further, the three-level precipitation zone of mud-settling pit further includes sediment structure, and sediment structure is set to the hydrostatic In sediment space, and sediment structure has towards the inclined-plane of hydrostatic sediment space bottom angled.

Further, the elevation of the sediment structure surface bottom of mud-settling pit is higher than the elevation (height on flow channels top Journey refers to certain point along the distance in plumb line direction to absolute datum, and absolute datum herein is to the level of hydrostatic sediment space Bottom surface).

Further, the three-level precipitation zone of mud-settling pit further includes for precipitating sludge in its region to be discharged Three sludge drainage systems；Third sludge drainage system includes third sludge discharge pipeline, third densimeter, third sludge pump and third controller, and Three sludge discharge pipelines are connected to the bottom of three-level precipitation zone, and third densimeter and third sludge pump are set in turn in third sludge pipe On line, third densimeter and third sludge pump are electrically connected with third controller respectively, and third densimeter is for detecting third spoil disposal Sludge concentration in pipeline, and the information that will test obtained sludge concentration is sent to third controller, third controller root According to received sludge concentration information control third sludge pump start and stop campaign.

Further, the pond body of mud-settling pit further includes set on the water inlet overflow launder of water inlet end and going out set on water outlet Water overflow launder；Overflow launder level-one precipitation zone of intaking dispersion conveying water flow, water outlet overflow launder is for water body to be discharged.

Further, the level-one precipitation zone of mud-settling pit includes for its region internal precipitate sludge to be discharged One sludge drainage system；First sludge drainage system includes the first sludge discharge pipeline, the first densimeter, the first sludge pump and the first controller, the One sludge discharge pipeline is connected to the bottom of level-one precipitation zone, and the first densimeter and the first sludge pump are set in turn in the first sludge pipe On line, the first densimeter and the first sludge pump are electrically connected with the first controller respectively, and the first densimeter is for detecting the first spoil disposal Sludge concentration in pipeline, and the information that will test obtained sludge concentration is sent to the first controller, the first controller root According to received sludge concentration information control the first sludge pump start and stop campaign.

Further, the two-stage precipitation region of mud-settling pit includes being set to region inside and being used to precipitate in region dirty Second sludge drainage system of mud discharge, and setting is opened wide in the upper end in two-stage precipitation region.

Further, the second sludge drainage system of mud-settling pit includes mobile mud discharging device, the second sludge discharge pipeline and the Two controllers, mobile mud discharging device are electrically connected to second controller, and mobile mud discharging device is used for will be in two-stage precipitation region Precipitating sludge be delivered in the second sludge discharge pipeline, the second sludge discharge pipeline is for sludge to be discharged.

The utility model has the beneficial effects that the utility model provides a kind of mud for gushing polluted bed mud processing for river and lake pool Sedimentation basin is starched, which precipitates by setting gradually level-one precipitation zone, two-stage precipitation region and three-level in pond body Region realizes the Multistage settling to mud mixture in the same mud-settling pit；And on this basis, by three-level Partition is set in precipitation zone, the water flow that script is vertically flowed into from top is become into the water flow that bottom end flows upwardly into, is reduced The disturbance that water body directly becomes a mandarin to water body in three-level precipitation zone also effectively avoids going out for the short flow phenomenon of water body in region It is existing, the hydraulic detention time of mud mixture is reasonably extended, the effective muddy water improved in mud-settling pit point is played Effect from efficiency.

Detailed description of the invention

It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this is practical new Some embodiments of type for those of ordinary skill in the art without any creative labor, can be with It obtains other drawings based on these drawings.

Fig. 1 is that a kind of river and lake pool that the utility model embodiment 1 provides is gushing the mud-settling pit of polluted bed mud processing just View；

Fig. 2 is bowing for the mud-settling pit that a kind of river and lake pool that the utility model embodiment 1 provides gushes polluted bed mud processing View；

Fig. 3 is that a kind of river and lake pool that the utility model embodiment 2 provides is gushing the mud-settling pit of polluted bed mud processing just View.

Wherein, each appended drawing reference in figure:

10, level-one precipitation zone；11, the first sludge drainage system；12, deflector hole；111, the first sludge discharge pipeline；112, first is dense Degree meter；113, the first sludge pump；114, the first mud discharging mouth；20, two-stage precipitation region；21, the second sludge drainage system；211, mobile Mud discharging device；212, the second sludge discharge pipeline；30, three-level precipitation zone；31, partition；32, sediment structure；33, water holding space；34, Hydrostatic sediment space；35, third sludge drainage system；351, third sludge discharge pipeline；352, third densimeter；353, third sludge pump； 354, third mud discharging mouth；36, flow channels；40, water inlet overflow launder；50, it is discharged overflow launder.

Specific embodiment

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model Limitation.

In the description of the present invention, it should be understood that term " length ", " width ", "upper", "lower", " preceding ", The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" be based on Orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than instruction or dark Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair The limitation of the utility model.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention, More than, unless otherwise specifically defined.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be Mechanical connection, is also possible to be electrically connected, is also possible to be connected directly, can also can be two indirectly connected through an intermediary The interaction relationship of connection or two elements inside a element.For the ordinary skill in the art, Ke Yigen The concrete meaning of above-mentioned term in the present invention is understood according to concrete condition.

As shown in Fig. 1~2, the mud that the river and lake pool that the first embodiment of the utility model provides gushes polluted bed mud processing is heavy Shallow lake pond includes: pond body and the water inlet end for being relatively arranged on the pond body two sides and water outlet, the pond body include: for muddy water Mixture carries out the level-one precipitation zone 10 of primary deposition, for carrying out the two-stage precipitation area of second of precipitating to mud mixture Domain 20, and the three-level precipitation zone 30 for carrying out third time precipitating to mud mixture；And level-one precipitation zone 10, second level Precipitation zone 20 and three-level precipitation zone 30 are sequentially communicated along water (flow) direction and are set between water inlet end and water outlet；Wherein, three It is equipped with partition 31 in grade precipitation zone 30, partition 31 is arranged in three-level precipitation zone 30 along the direction perpendicular to water flow, partition There are flow channels 36, three-level precipitation zone 30 is separated by partition 31 between 31 bottom end and the bottom surface of three-level precipitation zone 30 Water holding space 33 and hydrostatic sediment space 34, water holding space 33 are connected with hydrostatic sediment space 34 by flow channels 36.

Mud mixture enters in pond body from the water inlet end of above-mentioned mud-settling pit, followed by above-mentioned level-one settling zone Water outlet outflow after domain 10, two-stage precipitation region 20 and three-level precipitation zone 30 through mud-settling pit.And the level-one of the precipitating The water outlet side of precipitation zone 10 is communicated with the influent side in two-stage precipitation region 20, and the water outlet side and three-level in two-stage precipitation region precipitate The influent side in region 30 communicates, and the mud mixture into mud-settling pit is entered in a manner of overflow from previous stage precipitation zone Rear stage precipitation zone, it is ensured that flow in and out to water flow stationary, it is effective to reduce because water flow is imported in regions at different levels The disturbance of existing water body.In addition, three-level precipitation zone communicates setting so that the structure of entire mud-settling pit is more compact, it can Reduce occupied area to a certain extent, saves construction investment cost.

In above-mentioned three-level precipitation zone, two-stage precipitation region 20 is the major precipitation region of mud-settling pit, muddy water mixing Object through level-one precipitation zone 10 for the first time sedimentation after enter two-stage precipitation region 20 in, due to partial sludge therein separated into The bottom for entering level-one precipitation zone, the clay content into the mud mixture in two-stage precipitation region 20 reduce, therefore can be Reduce the volume in two-stage precipitation region 20 on the basis of guarantee sludge settling, suitably to reduce capital expenditure cost.Muddy water mixing After two-stage precipitation region 20 is precipitated, the water body clay content of outflow substantially reduces object, but still carries part sedimentation not Complete sludge is set on the basis of two-stage precipitation region 20 to further enhance the mud-water separation effect of mud-settling pit Three-level precipitation zone 30 is set, and partition 31 is set in three-level precipitation zone 30, pass through the water flow in water holding space 33 need to Circulation road 36 can enter hydrostatic sediment space 34, and the water flow that script is vertically flowed into from top is become into what bottom end flowed upwardly into Water flow reduces the disturbance that water body directly becomes a mandarin to water body in three-level precipitation zone 30, while also can effectively avoid region Nei Shui Furthermore the appearance of the short flow phenomenon of body can also reasonably extend the hydraulic detention time of mud mixture, can guarantee precipitating sludge On the basis of not disturbed, the effective efficiency for improving mud-water separation in three-level precipitation zone.

As shown in Figure 1, the partition 31 of the mud-settling pit in the present embodiment top (preferably smooth top structure, Can certainly be rough top structure) be higher than between two-stage precipitation region 20 and three-level precipitation zone 30 every dam Top is directly entered hydrostatic sediment space 34 with the top for preventing mud mixture from covering partition 31.

As shown in Figure 1, the three-level precipitation zone 30 of the mud-settling pit in the present embodiment further includes sediment structure 32, precipitating Structure 32 is set in hydrostatic sediment space 34, and sediment structure 32 has towards the inclined-plane of 34 bottom angled of hydrostatic sediment space.

By being added in hydrostatic sediment space 34 towards the oblique of the sediment structure 32 of 34 bottom angled of hydrostatic sediment space Face, the sludge for carrying water body are deposited to the inclined surface of sediment structure 32 first, and close to the close upper end of sediment structure 32 Surface on the sludge thickness that settles, be always thicker than and be deposited in its sludge thickness on rear surface, therefore be deposited in Sludge can act on a downward thrust to the sludge under being deposited in, therefore, gradually with both ends surface settlement sludge thickness Increase, under the action of gravity itself, above-mentioned thrust also will increase sludge, be deposited in 32 surface of sediment structure to force Sludge slides to the bottom of hydrostatic sediment space 34 (bottom surface of this hydrostatic sediment space 34 is horizontal plane).Since water flow carries Sludge can contact first and be settled down to the surface of sediment structure 32, subsequent reprecipitation to the bottom of hydrostatic sediment space 34, because This compares the bottom for being directly settled down to hydrostatic sediment space 34, and setting sediment structure is equivalent to the precipitating height for reducing precipitation zone Shallow pool theory, is effectively applied in the hydrostatic sediment space 34, so that the smaller mud granule of partial size can also be sunk by degree It forms sediment and separates, so a possibility that considerably increasing sludge settling, improves the effect of sludge settling, and then improve entire mud The efficiency of sedimentation basin mud-water separation.

Preferably, the sediment structure 32 of the above-mentioned settling pit in the present embodiment is inclined plate or tube settling structure.Setting Inclined plate or inclined tube can not only effectively increase the desilting area of precipitation zone, to improve deposition efficiency；In addition, setting inclined plate Or after inclined tube, hydrostatic sediment space 34 is equivalent to an inclined plate or inclined tube mud-settling pit, can make full use of inclined plate or Inclined tube mud-settling pit have as water project situation is preferable, the advantage that Reynolds number is smaller, Froude number is larger etc., to improve three The deposition efficiency of sludge in grade precipitation zone 30.

Specifically, the elevation of 32 surface bottom of sediment structure of the mud-settling pit in the present embodiment is higher than flow channels 36 The elevation on top, i.e. 32 integral installation height of sediment structure are higher than the flow channels of 30 bottom of three-level precipitation zone, can be maximum Disturbance of the reduction water flow of limit to the sludge on the inclined-plane for being deposited in sediment structure 32.

As shown in Figure 1, the three-level precipitation zone 30 of the mud-settling pit in the present embodiment further includes for will be in its region The third sludge drainage system 35 of precipitating sludge discharge；Third sludge drainage system 35 include third sludge discharge pipeline 351, third densimeter 352, Third sludge pump 353 and third controller, third sludge discharge pipeline 351 are connected to the bottom of three-level precipitation zone 30, third concentration Meter 352 and third sludge pump 353 are set in turn on third sludge discharge pipeline 351, third densimeter 352 and third sludge pump 353 It is electrically connected respectively with third controller, third densimeter 352 is used to detect the sludge concentration in third sludge discharge pipeline 351, and will The information for detecting obtained sludge concentration is sent to third controller, third controller according to received sludge concentration letter The start and stop campaign of breath control third sludge pump 353.In the practical progress course of work of the sedimentation basin, the bottom of hydrostatic sediment space 34 The concentration for the mud that portion is stockpiled has third densimeter 352 to be detected automatically, the mud detected by the third densimeter 352 Concentration has reached preset value upper limit of concentration, and detected concentration information is sent to third control by third densimeter 352 at this time Device, the concentration information that third controller has received mud send enabled instruction to third sludge pump 353 later, and third is arranged at this time Dredge pump 353 starts, so that the bottom mud of hydrostatic sediment space 34 is discharged, during carrying out taking out pump discharge to mud, Third densimeter 352 also carries out Concentration Testing in the mud of the bottom in real time to hydrostatic sediment space 34, and in real time by institute Detect that concentration of hydraulic mixture information is sent to third controller, when the concentration of the mud of the bottom of hydrostatic sediment space 34 be reduced to it is pre- If being worth after concentration limit, to stop discharging mud, then third controller will send halt instruction to third sludge pump 353 The slurry fluid in hydrostatic sediment space 34 is allowed to continue to precipitate, such automatic cycle takes out pump discharge work, realizes automatic control System takes out pump discharge process.

Specifically, the level-one precipitation zone 10 of the mud-settling pit in the present embodiment include set on its influent side water inlet overflow Chute 40, due to river and lake sludge dredging after mud mixture frequently with pipeline into factory, therefore influent side setting water inlet overflow Chute 40, water inlet enter level-one precipitation zone 10 via water inlet 40 overflow of overflow launder, thus it is possible to vary concentrate Inlet flow pattern, reduce it Flow velocity, and disperse uniform flow out to level-one precipitation zone 10.And it is corresponding with water inlet overflow launder 40, it is above-mentioned in the present embodiment The three-level precipitation zone 30 of mud-settling pit includes the water outlet overflow launder 50 for the water body after precipitating to be uniformly discharged.

The level-one precipitation zone 10 of mud-settling pit in the present embodiment includes for arranging its region internal precipitate sludge The first sludge drainage system 11 out；First sludge drainage system 11 includes the first sludge discharge pipeline 111, the first densimeter 112, the first sludge pump 113 and first controller, the first sludge discharge pipeline 111 be connected to the bottom of level-one precipitation zone 10, the first densimeter 112 and first Sludge pump 113 is set in turn on the first sludge discharge pipeline 111, and the first densimeter 112 and the first sludge pump 113 are controlled with first respectively Device electrical connection processed, the first densimeter 112 is used to detect the sludge concentration in the first sludge discharge pipeline 111, and will test obtained The information of sludge concentration is sent to the first controller, the first controller according to the information of received sludge concentration control first row The start and stop campaign of dredge pump 113.Though it should be noted that each building block of the first sludge drainage system 11 and third sludge drainage system 35 It is identical, but it is different according to the concentration of discharge sludge, and the model of each component applied to the two is different, therefore cannot be thought It is the component that can be replaced mutually.When entering the process stopped in level-one precipitation zone 10 from the mud pumped into river In, dust is precipitated simultaneously in mud, and the mud that the first densimeter 112 precipitates the bottom of level-one precipitation zone 10 Concentration detected, and detected concentration of hydraulic mixture information is sent to the first controller by the first densimeter 112, when When the received concentration of hydraulic mixture information of one controller analysis institute reaches set upper limit of concentration, the first controller the first spoil disposal of control Pump 113 is actuated for the mud precipitated in the bottom for taking out pump discharge level-one precipitation zone 10.Also, in the first sludge pump 113 It carries out during taking out pump discharge, the first densimeter 112 examines the concentration of hydraulic mixture of the bottom of level-one precipitation zone 10 in real time It surveys, after detecting that concentration of hydraulic mixture is reduced to the lower limit of preset value concentration, the first controller receives concentration of hydraulic mixture information and controls First sludge pump 113 stops working, so that the slurry fluid in level-one precipitation zone 10 continues to precipitate, such automatic cycle takes out pump Work is discharged, realizes to automatically control and takes out pump discharge process.

Specifically, the two-stage precipitation region 20 of the mud-settling pit in the present embodiment will including being set to inside region and being used for The second sludge drainage system 21 that precipitating sludge is discharged in region, and setting is opened wide in the upper end in two-stage precipitation region, to be second Sludge drainage system 21 provides spoil disposal working space；The second above-mentioned sludge drainage system 21 includes mobile mud discharging device 211, the second spoil disposal Pipeline 212 and second controller, such as mobile spoil disposal pumping station of mobile mud discharging device 211 twist and inhale ship, due to two-stage precipitation area The precipitation zone in domain 21 is very big, thus needs spoil disposal pumping station or strand to inhale ship etc. and moved back and forth simultaneously in two-stage precipitation region 21 Mud discharge work is carried out simultaneously, for pumping the precipitating sludge in two-stage precipitation region 20 to the second sludge discharge pipeline 212, The sludge being deposited in two-stage precipitation region 20 for being discharged and being delivered to next stage Treatment of Sludge structure by the second sludge discharge pipeline 212 Build object.

In the design of automatic control of the sedimentation basin, second controller is for controlling opening for mobile mud discharging device 211 It stops transport dynamic, and the first, second, and third controller collection of above-mentioned sedimentation basin becomes a total central control system (i.e. master control Room), by uniformly programm-automatized design, to realize the automation control to entire sedimentation basin.

Shown in Fig. 3, it illustrates the front views of the second embodiment of the utility model.Compared with first embodiment, the Two embodiments have a following difference: the level-one precipitation zone 10 of the sedimentation basin of second embodiment and two-stage precipitation region 20 it Between be equipped with multiple deflector holes every dam between dam and two-stage precipitation region 20 and three-level precipitation zone 30, and it is multiple Deflector hole is arranged close to the top being somebody's turn to do every dam.Go out to open up multiple deflector holes 12 on the close top every dam of precipitation zones at different levels, Overflow between precipitation zones at different levels in embodiment 1 is become a mandarin mode, the mode that becomes a mandarin by 12 water conservancy diversion of deflector hole is changed to, It equally can also play the role of being distributed to the uniform fluid flow in upper level precipitation zone in next stage precipitation zone.Make It becomes a mandarin the alternative of mode for overflow, is also able to achieve the uniform inflow of mud mixture, what technical effect and overflow became a mandarin Technical effect is essentially identical.For second embodiment in addition to above structure is different from the first embodiment, remaining structure is all the same, therefore This is repeated no more.

The mud-settling pit that river and lake pool provided by the present invention gushes polluted bed mud processing is suitable for river and lake pool and gushes sludge industrial In change processing, that is, it is suitable for river and lake and moors the design of mud-settling pit of the polluted bed mud the treatment plant for gushing polluted bed mud answering With.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model Protection scope within.

Claims (10)

1. a kind of river and lake pool gushes the mud-settling pit of polluted bed mud processing, including pond body and it is relatively arranged on the pond body two sides Water inlet end and water outlet, which is characterized in that the pond body includes: to precipitate for carrying out the level-one of primary deposition to mud mixture Region (10), the two-stage precipitation region (20) for precipitate for the second time to mud mixture, and for being mixed to muddy water The three-level precipitation zone (30) of object progress third time precipitating；And the level-one precipitation zone (10), the two-stage precipitation region (20) it is sequentially arranged between the water inlet end and the water outlet with the three-level precipitation zone (30) along water (flow) direction；

Wherein, partition (31) are equipped in the three-level precipitation zone (30), the partition (31) is along the direction card perpendicular to water flow In the three-level precipitation zone (30), between the bottom end of the partition (31) and the bottom surface of the three-level precipitation zone (30) With flow channels (36), the three-level precipitation zone (30) is separated into water holding space (33) to the partition (31) and hydrostatic is heavy Shallow lake space (34), the water holding space (33) are connected with the hydrostatic sediment space (34) by the flow channels (36).

2. the mud-settling pit that a kind of river and lake pool according to claim 1 gushes polluted bed mud processing, it is characterised in that: described The top of partition (31) is higher than the top every dam between the two-stage precipitation region (20) and the three-level precipitation zone (30).

3. the mud-settling pit that a kind of river and lake pool according to claim 1 gushes polluted bed mud processing, it is characterised in that: described Between level-one precipitation zone (10) and the two-stage precipitation region (20) every dam and the two-stage precipitation region (20) and institute It states and is equipped with multiple deflector holes (12) every dam between three-level precipitation zone (30), and multiple deflector holes (12) are close to should be every The top on dam is arranged.

4. the mud-settling pit that a kind of river and lake pool according to claim 1 gushes polluted bed mud processing, it is characterised in that: described Three-level precipitation zone (30) further includes sediment structure (32), and the sediment structure (32) is set to the hydrostatic sediment space (34) It is interior, and the sediment structure (32) has towards the inclined-plane of hydrostatic sediment space (34) bottom angled.

5. the mud-settling pit that a kind of river and lake pool according to claim 4 gushes polluted bed mud processing, it is characterised in that: described The elevation of sediment structure (32) surface bottom is higher than the elevation on the flow channels (36) top.

6. the mud-settling pit that a kind of river and lake pool according to claim 1 gushes polluted bed mud processing, it is characterised in that: described Three-level precipitation zone (30) further includes the third sludge drainage system (35) for precipitating sludge in its region to be discharged；The third row Mud system (35) includes third sludge discharge pipeline (351), third densimeter (352), third sludge pump (353) and third controller, The third sludge discharge pipeline (351) is connected to the bottom of the three-level precipitation zone (30), the third densimeter (352) and institute It states third sludge pump (353) to be set in turn on the third sludge discharge pipeline (351), the third densimeter (352) and described Third sludge pump (353) is electrically connected with the third controller respectively, and the third densimeter (352) is for detecting the third Sludge concentration in sludge discharge pipeline (351), and the information that will test obtained sludge concentration is sent to the third controller, The third controller according to the information of received sludge concentration control the start and stop campaign of the third sludge pump (353).

7. the mud-settling pit that a kind of river and lake pool according to claim 1 gushes polluted bed mud processing, it is characterised in that: described Pond body further includes the water outlet overflow launder (50) set on the water inlet overflow launder (40) of the water inlet end and set on the water outlet；It is described Overflow launder (40) are intake to the level-one precipitation zone (10) dispersion conveying water flow, the water outlet overflow launder (50) is used for water body Discharge.

8. the mud-settling pit that a kind of river and lake pool according to claim 1 gushes polluted bed mud processing, it is characterised in that: described Level-one precipitation zone (10) includes the first sludge drainage system (11) for its region internal precipitate sludge to be discharged；The first row Mud system (11) includes the first sludge discharge pipeline (111), the first densimeter (112), the first sludge pump (113) and the first controller, First sludge discharge pipeline (111) is connected to the bottom of the level-one precipitation zone (10), first densimeter (112) and institute It states the first sludge pump (113) to be set in turn on first sludge discharge pipeline (111), first densimeter (112) and described First sludge pump (113) is electrically connected with first controller respectively, and first densimeter (112) is for detecting described first Sludge concentration in sludge discharge pipeline (111), and the information that will test obtained sludge concentration is sent to first controller, First controller according to the information of received sludge concentration control the start and stop campaign of first sludge pump (113).

9. the mud-settling pit that a kind of river and lake pool according to claim 1 gushes polluted bed mud processing, it is characterised in that: described Two-stage precipitation region (20) includes the second sludge drainage system (21) inside region and for precipitating sludge in region to be discharged, And setting is opened wide in the upper end of the two-stage precipitation region (20).

10. the mud-settling pit that a kind of river and lake pool according to claim 9 gushes polluted bed mud processing, it is characterised in that: institute It states the second sludge drainage system (21) and includes mobile mud discharging device (211), the second sludge discharge pipeline (212) and second controller, it is described Mobile mud discharging device is electrically connected to the second controller, and the movable type mud discharging device (211) is for sinking the second level Precipitating sludge in shallow lake region (20) is delivered in second sludge discharge pipeline (212), and second sludge discharge pipeline (212) is used for Sludge is discharged.