CN106336108A - Method for muddy water dredging and in-situ efficient volume reduction and device for achieving method - Google Patents
Method for muddy water dredging and in-situ efficient volume reduction and device for achieving method Download PDFInfo
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- CN106336108A CN106336108A CN201611041342.3A CN201611041342A CN106336108A CN 106336108 A CN106336108 A CN 106336108A CN 201611041342 A CN201611041342 A CN 201611041342A CN 106336108 A CN106336108 A CN 106336108A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/127—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering by centrifugation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
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- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
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- General Chemical & Material Sciences (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a method for muddy water dredging and in-situ efficient volume reduction and a device for achieving the method. A dredge pump (1), a two-stage serial hydrocyclone system (III), a coagulant mixing adding system (II) and a centrifugal hydroextractor (IV) are arranged on a dredge ship. The centrifugal hydroextractor is directly connected with the two-stage serial hydrocyclone system. Muddy water is drawn and dredged through the dredge pump (1) on the dredge ship and fed into the two-stage serial hydrocyclone system for concentration volume reduction treatment, concentrated underflow mud obtained after volume reduction is discharged into the centrifugal hydroextractor to be dehydrated, and overflow clear liquid is directly drained into water. Mud cakes obtained after dehydration are lightered to land to be treated, one part of dehydration filter liquor is reused in the coagulant mixing adding system (II), and the rest is directly drained to the water. The method for muddy water dredging and in-situ efficient volume reduction and the device for achieving the method are small in size, small in occupied area and high in solid-liquid separation efficiency, and effluent can be directly drained into the water.
Description
Technical field
The present invention relates to a kind of method of dredging muddy water volume reduction, the in situ efficiently volume reduction of more particularly to a kind of dredging muddy water
Method.The invention still further relates to realizing the device of the method for this efficient volume reduction of dredging muddy water original position.
Background technology
Currently, the dredging muddy water producing for water body dredging, mainly adopts dystopy tupe, and that is, distance blows or refutes
Fortune dredging muddy water is to land stockyard/Treatment stations.However, advancing by leaps and bounds with dredging technology, dredge dredger used at present
Yield all ratios are larger, such as Tianjin Navigation Bureau " sky whale " number cutter suction dredger, and the amount of dredging is up to 4500m3/h；Even it is used for little
The dredger of waters environmental dredging, also ratio is larger for yield, such as with compact conformation, the adaptable famous U.S. of bay
Mudcat company mc-2000 type environment-friendly dredger, the amount of dredging also reaches 600m3/h.With this understanding, stockyard needed for dystopy is processed is relatively
Greatly, and corresponding processing equipment/structures scale is also larger, processing cost is high, is unfavorable for implementing.Therefore, it is necessary to thin
Dredge the volume reductionization process that muddy water carries out original position, to cut down the scale of subsequent treatment disposing technique.
The original position volume reduction technology and method of dredging muddy water, it is critical only that efficient solid-liquid separation efficiency.At present, for mud
The solid-liquid separation technique method of water can be divided into 2 classes: a class is the traditional concentration technique based on gravity concentration and mechanical thickening；One
Class is the integrated concentrator that thickening efficiency and concentration time are superior to traditional concentration technique, and such as fluid bed concentrates, waterpower is revolved
Stream granulation concentrates, in Chinese patent (publication number cn2600432, yellow court of a feudal ruler woods etc.；Publication number cn102078708a, Zhang Jianfeng etc.) in
All there is disclosure.Concentration time needed for first kind technical method is longer, typically former at more than a few hours it is impossible to realization dredging scene
Position is processed.Although Equations of The Second Kind technology concentration time is greatly reduced, general also more than 0.5 hour, equipment volume and institute
Need floor space all larger, dredging vessel is implemented there is certain difficulty.
Chinese patent (publication number cn103288324a, Jiang Changbo etc.) discloses a kind of " dredging muddy water original position separation of solid and liquid
Method and device ".This device is concentrated with hydraulic cyclone granulation and belt press filtration is as core, realizes coagulation medicine by hydraulic cyclone
Agent and the fast reaction dredging muddy water, and complete muddy water concentration and dehydration pretreatment, mistake in hydraulic cyclone prilling granulator inter-sync
Journey is compact and independent of one another, will not influence each other, it is achieved thereby that the continuous operation of device；Hydraulic cyclone prilling granulator gained concentrates
Body refuse directly carries out belt type filter-pressing dehydration plant, realizes dredging instant high efficient solid and liquid separation on dredging vessel for the muddy water.But this device
The concentration of suspension of water outlet higher it is difficult to meet " integrated wastewater discharge standard " (gb8978- that industry execution is dredged by current China
96) III Standard value 400mg/l.
Hydrocyclone is a kind of general separation equipment, has that floor space is little, disposal ability is big, separative efficiency is high and no
The advantages of moving component, it has been widely used in the solid-liquid separation unit operation in the fields such as mining and metallurgy, petrochemical industry, food and environment.Water
Power cyclone is confirmed to the efficiently quick solid-liquid separation effect of dredging muddy water.Park k.h. etc. adopts hydrocyclone
Process dredging muddy water it is achieved that volume reduction 90% about, but hydrocyclone overflowing liquid concentration of suspension is also higher, needs through taking up an area
After the larger air-floating apparatus of area are processed, can be only achieved the standard entering water body.
So far, there is not yet both having enabled dredged mud water efficient concentration volume reduction, water outlet simultaneously can meet " integrated wastewater again
Discharge standard " (gb8978-96) grade III Standard dredging muddy water in-situ treatment technology with equipment relevant report.
Content of the invention
First technical problem to be solved by this invention is to provide that a kind of small volume, floor space be little, separation of solid and liquid effect
The method that rate is high and water outlet can be directly discharged to the efficiently volume reduction in situ of the dredging muddy water of water body.
Second technical problem to be solved by this invention is to provide a kind of side realizing this and dredging the efficient volume reduction of muddy water original position
The device of method.
In order to solve above-mentioned technical problem, the method for the efficient volume reduction of dredging muddy water original position that the present invention provides, in dredger
Two-stage series connection hydrocyclone systems are arranged on oceangoing ship, centrifugal dehydrator is joined directly together with two-stage series connection hydrocyclone systems, dredger
The dredging muddy water of oceangoing ship suction is entered with entrance two-stage hydrocyclone systems after the coagulant mixing of coagulant mixing dosing system
Row concentrates volume reduction treatment, and the concentration spoil disposal after volume reduction enters centrifugal dehydrator dehydration, and overflow clear liquid is directly discharged into water body.
Specifically, using the dredge pump suction dredging muddy water of dredging vessel, dredging muddy water with mixing to add from coagulant is
After the coagulant mixing of system, the one-level hydrocyclone entering two-stage series connection hydrocyclone systems carries out separation of solid and liquid, obtains dense
Contracting body refuse and one-level overflow clear liquid；After one-level overflow clear liquid is mixed with the coagulant from coagulant mixing dosing system, enter
Two grades of hydrocyclones of two-stage series connection hydrocyclone systems carry out separation of solid and liquid, obtain concentrating body refuse and two grades of overflow clear liquids；
Two grades of overflow clear liquids are directly discharged into water body, after concentration body refuse is merged with the concentration body refuse of one-level hydrocyclone, enter centrifugation de-
Water dispenser carries out centrifugal dehydration；Dehydrated sludge cake is lightered to disposal by land, and a dehydration filtrate part is directly discharged into water body, and a part is sent into
Coagulant mixing dosing system configures coagulant.
Coagulant mixing dosing system includes anion pam and cation pam, and anion pam toss area is located at one-level water
Before power cyclone, before cation pam toss area is located at two grades of hydrocyclones.
, between 200～5,000,000, described cation pam molecular weight is 1000～20,000,000 for described anion pam molecular weight
Between.
In order to solve above-mentioned second technical problem, the method for the efficient volume reduction of realization dredging muddy water original position that the present invention provides
Device, including dredge pump, coagulant mixing dosing system, two-stage series connection hydrocyclone systems and centrifugal dehydrator, described two
Level series connection hydrocyclone systems are by the one-level tubular static mixer connected, one-level hydrocyclone, diode formula static mixing
Device and two grades of hydrocyclone compositions, the outlet of described dredge pump is connected with the import of described one-level tubular static mixer,
The bottom of described one-level hydrocyclone is connected with one-level underflow tube valve, and outlet is connected with one-level overflow tube valve；Described
The bottom of two grades of hydrocyclones be connected with two grades of underflow tube valves, outlet is connected with two grades of overflow tube valves；Described one
The outlet of level underflow tube valve and two grades of underflow tube valves is connected with centrifugal dehydrator；Two grades of described overflow tube valves are discharged
Overflow clear liquid is directly discharged into water body；Described coagulant mixing dosing system prepares bucket and described anion by anion pam
Pam prepare that the anion pam that bucket connects adds pump, cation pam prepares bucket and with cation pam prepare the sun that is connected of bucket from
Sub- pam adds pump group, and anion pam adds before pump is connected to one-level tubular static mixer import, and cation pam adds pump
Before being connected to the import of diode formula static mixer；One of the dehydrated outlet of described centrifugal dehydrator is directly discharged into water
Body, is joined with described coagulant mixing dosing system described anion pam preparation bucket and described cation pam for another
Tubbing connects.
The main body of described one-level hydrocyclone and two grades of hydrocyclones from up to down be followed successively by tool overflow pipe blind plate,
Double inlet flanges, straight length vortex chamber, conical section vortex chamber and underflow pipe, each several part adopts flange to connect.
The cone angle of the conical section vortex chamber of described one-level hydrocyclone is 10 °.
The cone angle of the conical section vortex chamber of two grades of described hydrocyclones is 5 °.
Described double inlet flange disks adopt tapered cross-section linear pattern entry mode, and sectional dimension according to treatment scale and is dredged
Dredge muddy water property and select different size.
Using the dredging muddy water method of efficient volume reduction and its device in situ of technique scheme, its mechanism is briefly described as below:
The dredging muddy water being aspirated by dredge pump first in one-level tubular static mixer with anion pam hybrid reaction, Gu
Body grain diameter is increased.Dredging muddy water is entered directly by tangential inlet by double inlet flanges of one-level hydrocyclone afterwards
Pipeline section vortex chamber, liquid at high speed rotation in straight length vortex chamber twist moves downward, and enters conical section vortex chamber.Due to
The screw of liquid, hydrocyclone near axis become low-pressure area, wall vicinity pressure highest.Meanwhile, dredge muddy water
Solid phase and liquid phase are all subject to centrifugal action, and large-size particles will overcome drag effect to move to hydrocyclone side wall, with liquid
Body is separated, and is finally discharged by underflow pipe, is formed and concentrates body refuse, delivers to centrifugal dehydrator dehydration；Water and fine particle are to low pressure
Area moves, motion of spinning upwards in rotation, forms inward eddy, and finally the overfall from tool overflow pipe blind plate is discharged.One
Level hydrocyclone overflow clear liquid in diode formula static mixer with cation pam hybrid reaction, cation pam's
Solid grain size increases, and enters two grades of hydrocyclones afterwards, carries out hydraulic cyclone separation of solid and liquid again, overflow clear liquid is up to standard
It is emitted into water body, concentration body refuse is merged with one-level hydrocyclone concentration body refuse delivers to centrifugal dehydrator dehydration.Dehydration filtrate one
Part reuse prepares coagulant to coagulant mixing dosing system, and remaining qualified discharge is to water body.
The present invention has the advantage that and beneficial effect:
1st, utilize dredging vessel dredge pump self power condition, in two-stage hydrocyclone systems, form high-velocity flow, realize
Solid phase and the hydrocyclone separation technology of liquid phase, without additional separation power, and two-stage hydrocyclone systems are straight with centrifugal dehydrator
Connect connected, whole volume reduction process all completes on dredging vessel, whole dredging muddy water need not be blowed or lighter, have low
The significant advantage of consumption energy-conservation.
2nd, dredging muddy water volume reduction process mainly completes in hydrocyclone systems, and hydraulic cyclone good effect of separating solid from liquid subtracts
Capacity rate is high, and the process of concurrently separating completes rapidly, and system hydraulic detention time is short, and volume and floor space are little, are easy in dredger
Implement on oceangoing ship.
3rd, hydrocyclone systems adopt two-stage series connection hydrocyclone, and hydrocyclones at different levels are relatively independent, definite functions,
And each own corresponding coagulant dosage device.Wherein first order hydrocyclone be mainly used in dredge muddy water concentration subtract
Hold, coagulant adopts the relatively small anion pam of molecular weight；Second level hydrocyclone is mainly used in cutting down in overflowing liquid
Concentration of suspension, coagulant adopts the relatively large cation pam of molecular weight.The form of two-stage series connection ensure that efficient volume reduction
Meanwhile, system standard water discharge discharge.
4th, pass through to change the sectional dimension of the double inlet flange disk tapered cross-section linear pattern entrance of hydrocyclone, can be not
Under same inlet flow rate, obtain identical inlet flow rate, under different live loads, obtain identical solid-liquid separation effect,
System gets a promotion to the adaptability of changes in flow rate in Dredging Process.
5th, the change according to dredging muddy water physicochemical properties, by adjusting the dosage of anion pam, it is possible to obtain steady
Fixed concentration volume reduction effect, by adjusting the dosage of cation pam, it is possible to obtain stable water outlet concentration of suspension, system
Adaptable to the change dredging muddy water physicochemical properties in Dredging Process.
For sludge reduction onsite process is carried out to the dredging muddy water producing in Dredging Process, cut down subsequent treatment disposing technique
Scale, more particularly, to two-stage series connection hydrocyclone concentrate and the sludge reduction method as core for the centrifugal dehydration, especially suitable
Minimizing together in the dredging muddy water producing in the activity such as roadway maintenance, port construction and environmental dredging.
In sum, the present invention is a kind of small volume, floor space is little, solid-liquid separation efficiency is high and water outlet can directly be discharged
The dredging muddy water method of efficient volume reduction and its device in situ to water body.
Brief description
Fig. 1 is the dredging muddy water efficient volume reduction method schematic flow sheet in situ of the present invention.
Fig. 2 is hydrocyclone structural representation in the present invention.
Fig. 3 is double inlet flange disk schematic diagrames in the present invention.
Fig. 4 adopts anion pam to improve one-level hydrocyclone thickening efficiency effect diagram for the present invention.
Fig. 5 adds the reduction effect diagram to water outlet concentration of suspension for subject cationic pam.
Specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in more detail.
Referring to Fig. 1, Fig. 2 and Fig. 3, the method for the efficient volume reduction of dredging muddy water original position that the present invention provides, on dredging vessel
Setting two-stage series connection hydrocyclone systems, centrifugal dehydrator is joined directly together with two-stage series connection hydrocyclone systems, and dredging vessel is taken out
Inhale dredging muddy water with from coagulant mixing dosing system coagulant mix after entrance two-stage hydrocyclone systems carry out dense
Contracting volume reduction treatment, the concentration spoil disposal after volume reduction enters centrifugal dehydrator dehydration, and overflow clear liquid is directly discharged into water body.
Specifically, using the dredge pump i suction dredging muddy water of dredging vessel, dredging muddy water with mixing to add from coagulant is
After the coagulant mixing of system, the one-level hydrocyclone entering two-stage series connection hydrocyclone systems carries out separation of solid and liquid, obtains
To concentration body refuse and one-level overflow clear liquid；One-level overflow clear liquid and the coagulant mixing from coagulant mixing dosing system
Afterwards, two grades of hydrocyclones entering two-stage series connection hydrocyclone systems carry out separation of solid and liquid, obtain concentrating body refuse and two grades
Overflow clear liquid；Two grades of overflow clear liquids are directly discharged into water body, after concentration body refuse is merged with the concentration body refuse of one-level hydrocyclone, enter
Enter centrifugal dehydrator iv and carry out centrifugal dehydration；Dehydrated sludge cake is lightered to disposal by land, and a dehydration filtrate part is directly discharged into water body,
A part sends into coagulant mixing dosing system configuration coagulant.
Coagulant mixing dosing system includes anion pam and cation pam, and anion pam toss area is located at one-level
Before hydrocyclone, before cation pam toss area is located at two grades of hydrocyclones.
Anion pam molecular weight between 200～5,000,000, described cation pam molecular weight 1000～20,000,000 it
Between.
Referring to Fig. 1, Fig. 2 and Fig. 3, the device of the method for the efficient volume reduction of muddy water original position, bag are dredged in the realization that the present invention provides
Include dredge pump i, coagulant mixing dosing system, two-stage series connection hydrocyclone systems and centrifugal dehydrator iv, two-stage series connection water
Power cyclone system is by the one-level tubular static mixer 3 connected, one-level hydrocyclone 1, diode formula static mixer 4 and
Two grades of hydrocyclones 2 form, and the outlet of dredge pump i is connected with the import of one-level tubular static mixer 3, and one-level tubular type is static mixed
The outlet of clutch 3 is connected with the import of one-level hydrocyclone 1, the one-level overflow tube valve 6 of the outlet of one-level hydrocyclone 1
Import with diode formula static mixer 4 is connected, and the outlet of diode formula static mixer 4 is with two grades of hydrocyclones 2
Import connects；The bottom of one-level hydrocyclone 1 is connected with one-level underflow tube valve 5, and outlet is connected with one-level overflow tube valve
6, the split ratio of one-level hydrocyclone 1 is controlled by one-level underflow tube valve 5 and one-level overflow tube valve 6；Two grades of hydraulic cyclones
The bottom of device 2 is connected with two grades of underflow tube valves 8, and outlet is connected with two grades of overflow tube valves 7, two grades of hydrocyclones 2 point
Stream ratio is controlled by two grades of overflow tube valves 7 and two grades of underflow tube valves 8；One-level underflow tube valve 5 and two grades of underflow tube valves 8
Outlet is connected with centrifugal dehydrator iv；The concentration body refuse of one-level underflow tube valve 5 and two grades of underflow tube valve 8 discharges send after merging
To centrifugal dehydrator iv dehydration；The overflow clear liquid that one-level overflow tube valve 6 is discharged enters via after diode formula static mixer 4
Two grades of hydrocyclones 2, the overflow clear liquid of two grades of overflow tube valve 7 discharges is directly discharged into water body；Coagulant mixing dosing system
Pump 10 is added by the anion pam that anion pam preparation bucket 9 is connected with anion pam preparation bucket 9, cation pam prepares
Bucket 11 and the cation pam being connected with cation pam preparation bucket 11 are added pump 12 and form, and anion pam adds pump 10 and connects
Before one-level tubular static mixer 3 import, before anion pam toss area is located at tubular static mixer 3, cation pam
Before adding the import that pump 12 is connected to diode formula static mixer 4, cation row pam toss area is located at tubular static mixer
Before 4；One of the dehydrated outlet of centrifugal dehydrator iv is directly discharged into water body, another with coagulant mixing dosing system
Anion pam prepares bucket 9 and cation pam prepares bucket 11 and connects.
Specifically, the main body of one-level hydrocyclone 1 and two grades of hydrocyclones 2 from up to down be followed successively by tool overflow pipe blind
Plate 13, double inlet flange 14, straight length vortex chamber 15, conical section vortex chamber 16 and underflow pipe 17, each several part adopts flange to connect；
Double inlet flange disks 14 adopt tapered cross-section linear pattern entry mode, and sectional dimension is selected according to treatment scale and dredged mud aqueous nature
Select different size.Tool overflow pipe blind plate 13, the specification of straight length vortex chamber 15, conical section vortex chamber 16 and underflow pipe 17 are according to place
Reason scale and dredged mud aqueous nature select different size.The cone angle of the conical section vortex chamber 16 of one-level hydrocyclone 1 is 10 °,
The cone angle of the conical section vortex chamber 16 of two grades of hydrocyclones 2 is 5 °.One-level hydrocyclone 1 and two grades of hydrocyclones 2 remove
Conical section vortex chamber cone angle is different outer, and remaining version is identical.
, with two-stage series connection hydrocyclone separation technology and centrifugal dehydration as core, dredging muddy water is in one-level hydrocyclone for the present invention
Complete in 1 to concentrate volume reduction, complete the reduction of overflow clear liquid concentration of suspension in two grades of hydrocyclones 2, in centrifugal dehydrator iv
Complete to be dehydrated volume reduction, finally realize efficient volume reduction and the qualified discharge of overflow clear liquid.The present invention is subtracted using hydrocyclone
Hold, separation of solid and liquid process complete rapid, efficient, system bulk and floor space little, be easy on dredging vessel implement；Using thin
Dredge ship dredge pump self power condition, form high-velocity flow needed for hydraulic cyclone in hydrocyclone systems, there is low-loss and energy-saving
Significant advantage；Concentrate volume reduction using anion pam and cation pam strengthening and concentration of suspension is cut down, aqueous to dredged mud
Qualitative changeization is adaptable；By changing the sectional dimension of double inlet flange tapered cross-section linear pattern entrances, system was to dredging
In journey, the adaptability of changes in flow rate gets a promotion.In a word, the present invention has low energy consumption, high efficiency, floor space is little, adapt to energy
Power is strong, water outlet can the advantage such as qualified discharge.
It is described further with reference to embodiment.
The dredging muddy water that present embodiment is produced using during the black and odorous water environmental dredging of south China city is as place
Reason object, builds the midget plant of the efficient volume reduction of dredging muddy water original position, treatment scale 20m in dredged mud Large Water Treatment Field3/h.Dredge pump
Lift is 30m.The moisture content of pending dredging muddy water is between 98%～99%.
Refering to Fig. 1 and Fig. 2, dredge muddy water and two-stage series connection hydrocyclone systems, wherein one-level waterpower rotation are sent into by dredge pump
Stream device 1 straight length vortex chamber 15 diameter 35cm, high 35cm, conical section vortex chamber 16 top diameter 35cm, base diameter 5cm,
10 ° of cone angle；The cone angle of the conical section vortex chamber 16 of two grades of hydrocyclones 2 is 5 °, the same first order of remaining physical dimension.Dredged mud
After water is mixed with the anion pam from coagulant mixing dosing system, complete solid-liquid in one-level hydrocyclone 1 and divide
From, underflow spoil disposal, centrifugal dehydrator dehydration is delivered to by pressure itself, one-level overflowing liquid with from coagulant mixing dosing system
Cation pam mixing after enter two grades of hydrocyclones 2, proceed separation of solid and liquid, underflow spoil disposal is sent by pressure itself
To centrifugal dehydrator dehydration, overflowing liquid enters water body.
Refer to Fig. 1, Fig. 2 and Fig. 3, dredging muddy water is aspirated by dredge pump, and in coagulant mixing dosing system simultaneously
The anion pam that anion pam adds pump 10 pumping mixes in one-level tubular static mixer 3, the molecular weight of anion pam
For 3,000,000, dosage is 2mg/g dewatered sludge.Dredging muddy water after hybrid reaction enters one-level hydraulic cyclone with the flow velocity of 5m/s
Double inlet flanges 14 of device 1.By adjusting the open degree of one-level underflow tube valve 5 and one-level overflow tube valve 6, control one-level water
The split ratio (underflow flow/total flow) of power cyclone 1 be 0.05, hydraulic cyclone effect under, greater particle size particle due to from
Mental and physical efforts move to hydrocyclone side wall, and move downward, along side wall, the one-level underflow row that formation moisture content is 82～90%
Mud, water and less particle then move to the low-pressure area of hydrocyclone near axis, and motion formation one-level overflow is clear upwards
Liquid.One-level underflow spoil disposal, under pressure itself effect, enters centrifugal dehydrator and is dehydrated.One-level overflow clear liquid has overflow certainly
Overfall on pipe blind plate 13 is discharged, with the sun adding pump 12 pumping from coagulant mixing dosing system cationic pam
Ion pam mixes in diode formula static mixer 4, and the molecular weight of cation pam is 15,000,000, and dosage is done for 4mg/g
Mud.One-level overflow clear liquid after hybrid reaction enters double inlet flanges 14 of two grades of hydrocyclones 2 with the flow velocity of 4.8m/s.
By adjusting the open degree of two grades of overflow tube valves 7 and two grades of underflow tube valves 8, control the split ratio of two grades of hydrocyclones 2
(underflow flow/total flow) is 0.05.After two grades of hydrocyclone 2 separation of solid and liquid, form two grades of moisture content 88～90%
Underflow spoil disposal and concentration of suspension two grades of overflow clear liquids less than 400mg/l.Two grades of underflow spoil disposals are merged with one-level underflow spoil disposal
Enter centrifugal dehydrator afterwards to be dehydrated, two grades of overflow clear liquids are directly discharged into water body.Underflow spoil disposal takes off through centrifugal dehydrator
Form the mud cake of moisture content 60% about, mud cake is lightered and processed to land, and a dehydration filtrate part delivers to coagulant after water
Anion pam in mixing dosing system prepares bucket 9 and cation pam prepares bucket 11, for configuring coagulated agent.
Refering to Fig. 4, the effect improving one-level hydrocyclone thickening efficiency to anion pam illustrates, and works as anion
Pam molecular weight is 3,000,000, when dosage is 2mg/g dewatered sludge, under the conditions of identical split ratio, one-level hydrocyclone 1
Thickening efficiency dramatically increases.When split ratio is 0.05, separative efficiency can be brought up to by 21% when not adding anion pam
62% about.Confirm the thickening efficiency that can improve dredging muddy water by adding anion pam.
Refering to Fig. 5, the effect cutting down water outlet concentration of suspension to cation pam illustrates.Add with cation pam
The increase of amount, system water outlet concentration of suspension continues to increase.When dosage is for 4mg/g dewatered sludge, water outlet concentration of suspension is little
In 400mg/g dewatered sludge, reach " integrated wastewater discharge standard " (gb8978-96) grade III Standard, can directly discharge.
Certainly, above example is only not intended to limit in order to technical scheme to be described, although with reference to above-mentioned reality
Apply example the present invention has been described in detail, it should be understood by a person of ordinary skill in the art that still can be to the present invention
Specific embodiment modify or equivalent, and any modification without departing from spirit and scope of the invention or equivalent
Replace, it all should be covered in scope of the presently claimed invention.
Claims (9)
1. a kind of method dredging the efficient volume reduction of muddy water original position, is characterized in that: setting two-stage series connection waterpower rotation on dredging vessel
Streaming system, centrifugal dehydrator is joined directly together with two-stage series connection hydrocyclone systems, dredging vessel suction dredging muddy water be derived from
Enter two-stage hydrocyclone systems after the coagulant mixing of coagulant mixing dosing system to carry out concentrating volume reduction treatment, after volume reduction
Concentrate spoil disposal and enter centrifugal dehydrator dehydration, overflow clear liquid is directly discharged into water body.
2. the method dredging the efficient volume reduction of muddy water original position according to claim 1, is characterized in that: using the mud of dredging vessel
Pump (i) suction dredging muddy water, after dredging muddy water is mixed with the coagulant from coagulant mixing dosing system (), enters two-stage
The one-level hydrocyclone of series connection hydrocyclone systems () carries out separation of solid and liquid, obtains concentrating body refuse and one-level overflow clear liquid；
After one-level overflow clear liquid is mixed with the coagulant from coagulant mixing dosing system (), enter two-stage series connection hydraulic cyclone system
Two grades of hydrocyclones of system () carry out separation of solid and liquid, obtain concentrating body refuse and two grades of overflow clear liquids；Two grades of overflow clear liquids are straight
Run in into water body, concentrate after body refuse merges with the concentration body refuse of one-level hydrocyclone, entrance centrifugal dehydrator (iv) carry out from
The heart is dehydrated；Dehydrated sludge cake is lightered to disposal by land, and a dehydration filtrate part is directly discharged into water body, and a part sends into coagulant mixing
Dosing system () configures coagulant.
3. the method dredging the efficient volume reduction of muddy water original position according to claim 2, is characterized in that: coagulant mixing adds and is
System () includes anion pam and cation pam, before anion pam toss area is located at one-level hydrocyclone, cation
Before pam toss area is located at two grades of hydrocyclones.
4. the method dredging the efficient volume reduction of muddy water original position according to claim 3, is characterized in that: described anion pam divides
, between 200～5,000,000, described cation pam molecular weight is between 1000～20,000,000 for son amount.
5. realize the device of the method for the efficient volume reduction of dredging muddy water original position described in claim 1, it is characterized in that: include dredge pump
(i), coagulant mixing dosing system (), two-stage series connection hydrocyclone systems () and centrifugal dehydrator (iv), described two
Level series connection hydrocyclone systems () is by the one-level tubular static mixer (3) connected, one-level hydrocyclone (1), diode
Formula static mixer (4) and two grades of hydrocyclone (2) compositions, the outlet of described dredge pump (i) is quiet with described one-level tubular type
The import of state blender (3) connects, and the bottom of described one-level hydrocyclone (1) is connected with one-level underflow tube valve (5), goes out
Mouth is connected with one-level overflow tube valve (6)；The bottom of two grades of described hydrocyclones (2) is connected with two grades of underflow tube valves
(8), outlet is connected with two grades of overflow tube valves (7)；Described one-level underflow tube valve (5) and two grades of underflow tube valves (8)
Outlet is connected with centrifugal dehydrator (iv)；The overflow clear liquid that two grades of described overflow tube valves (7) are discharged is directly discharged into water body；Institute
Coagulant mixing dosing system () stated is prepared bucket (9) by anion pam and is connected with described anion pam preparation bucket (9)
Anion pam add pump (10), cation pam prepares bucket (11) and with cation pam prepare bucket (11) sun that is connected from
Sub- pam adds pump (12) composition, and anion pam adds before pump (10) is connected to one-level tubular static mixer (3) import, sun from
Before sub- pam adds the import that pump (12) is connected to diode formula static mixer (4)；The dehydration of described centrifugal dehydrator (iv)
One of outlet is directly discharged into water body, another with described coagulant mixing dosing system () described anion pam
Prepare bucket (9) and described cation pam prepares bucket (11) and connects.
6. the device of the method realizing the efficient volume reduction of dredging muddy water original position according to claim 5, is characterized in that: described
The main body of one-level hydrocyclone (1) and two grades of hydrocyclones (2) from up to down be followed successively by tool overflow pipe blind plate (13), double enter
Mouth flange (14), straight length vortex chamber (15), conical section vortex chamber (16) and underflow pipe (17), each several part adopts flange to connect.
7. the device of the method realizing the efficient volume reduction of dredging muddy water original position according to claim 6, is characterized in that: described
The cone angle of the conical section vortex chamber (16) of one-level hydrocyclone (1) is 10 °.
8. the device of the method realizing the efficient volume reduction of dredging muddy water original position according to claim 6, is characterized in that: described
The cone angle of the conical section vortex chamber (16) of two grades of hydrocyclones (2) is 5 °.
9. the device of the method realizing the efficient volume reduction of dredging muddy water original position according to claim 6, is characterized in that: described
Double inlet flange disks (14) adopt tapered cross-section linear pattern entry mode.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106976930A (en) * | 2017-06-08 | 2017-07-25 | 长沙理工大学 | Hydrocyclone separator for sludge water, and treatment system and method for synchronous dissolution of sludge water concentration/coagulant |
| CN109516665A (en) * | 2019-01-15 | 2019-03-26 | 北京中矿环保科技股份有限公司 | Shield dregs dehydration equipment and shield dregs dewatering |
| CN112479556A (en) * | 2020-11-24 | 2021-03-12 | 河海大学 | Rapid drying treatment system and drying method for dredged slurry |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0256599A3 (en) * | 1986-08-19 | 1988-09-28 | Metallgesellschaft Ag | Dehydration of fine-grained mud from waters |
| CN202744428U (en) * | 2012-03-16 | 2013-02-20 | 天津清华德人环境工程有限公司 | River sediment sieving, oxidation reducing and deep dewatering device |
| CN103288324A (en) * | 2013-05-28 | 2013-09-11 | 长沙理工大学 | Method and device for in-situ solid-liquid separation of dredged muddy water |
| CN105600993A (en) * | 2016-02-18 | 2016-05-25 | 长江勘测规划设计研究有限责任公司 | Treatment method and device for high-concentration suspended matter waste water |
-
2016
- 2016-11-21 CN CN201611041342.3A patent/CN106336108B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0256599A3 (en) * | 1986-08-19 | 1988-09-28 | Metallgesellschaft Ag | Dehydration of fine-grained mud from waters |
| CN202744428U (en) * | 2012-03-16 | 2013-02-20 | 天津清华德人环境工程有限公司 | River sediment sieving, oxidation reducing and deep dewatering device |
| CN103288324A (en) * | 2013-05-28 | 2013-09-11 | 长沙理工大学 | Method and device for in-situ solid-liquid separation of dredged muddy water |
| CN105600993A (en) * | 2016-02-18 | 2016-05-25 | 长江勘测规划设计研究有限责任公司 | Treatment method and device for high-concentration suspended matter waste water |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106976930A (en) * | 2017-06-08 | 2017-07-25 | 长沙理工大学 | Hydrocyclone separator for sludge water, and treatment system and method for synchronous dissolution of sludge water concentration/coagulant |
| CN106976930B (en) * | 2017-06-08 | 2020-09-18 | 长沙理工大学 | Hydrocyclone separator for sludge water, and treatment system and method for synchronous dissolution of sludge water concentration/coagulant |
| CN109516665A (en) * | 2019-01-15 | 2019-03-26 | 北京中矿环保科技股份有限公司 | Shield dregs dehydration equipment and shield dregs dewatering |
| CN109516665B (en) * | 2019-01-15 | 2023-10-20 | 北京中矿环保科技股份有限公司 | Shield residue soil dehydration equipment and shield residue soil dehydration method |
| CN112479556A (en) * | 2020-11-24 | 2021-03-12 | 河海大学 | Rapid drying treatment system and drying method for dredged slurry |
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|---|---|
| CN106336108B (en) | 2019-02-22 |
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