CN106277670A - A kind of method of fine grained heavily contaminated part bed mud in sharp separation riverbed sludge - Google Patents
A kind of method of fine grained heavily contaminated part bed mud in sharp separation riverbed sludge Download PDFInfo
- Publication number
- CN106277670A CN106277670A CN201610784563.3A CN201610784563A CN106277670A CN 106277670 A CN106277670 A CN 106277670A CN 201610784563 A CN201610784563 A CN 201610784563A CN 106277670 A CN106277670 A CN 106277670A
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- CN
- China
- Prior art keywords
- mud
- bed mud
- eddy flow
- fine grained
- heavily contaminated
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
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- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Sludge (AREA)
Abstract
The present invention relates to a kind of method of fine grained heavily contaminated part bed mud in sharp separation riverbed sludge, it is characterised in that comprise the steps: 1) use cutter suction dredger by the bed mud sucking-off of river bed or lakebed, use dredging tube to be delivered to sludge handling factory；2) dredging tube is delivered to the muddy water pipeline of sludge handling factory and is directly accessed YSC 600N mud pre-screening device；Pollution critical grain size～the cosmid of 0.075mm, powder is isolated by ZX two grades of eddy flow operations of 250E type mud purifying device, part bed mud meets " standard of soil environment quality " grade III Standard, isolated bed mud pumps into concentration basin and concentrates, dense mud after concentration pumps into agitator and adds firming agent, dehydrant etc., flow into conditioner after stirring to nurse one's health, mechanical dewatering equipment dehydration recycling is used, including greening soil, fill, marine reclamation land etc. after conditioning.
Description
Technical field
The present invention relates to a kind of method of fine grained heavily contaminated part bed mud in sharp separation riverbed sludge, belong to environmental protection skill
Art field.
Background technology
River lakebed deposit oneself day by day have influence on flood control, drain flooded fields, irrigate, supply water, the normal performance of the various functions such as navigation, for
Recover river course normal function, promote the fast continual development of economic society, carry out channel cleanout dredging work.River course is made to pass through to control
Reason deepens, broadens, and river becomes clear, the working condition of the masses and living environment be improved significantly, reach that " water is clear, and river is smooth, bank
Green, scape is beautiful " target.
As CN201223830 discloses a kind of subparticle separation solid-liquid bipyramid cyclone, it is adaptable to from various mixing
Liquid is isolated subparticle.This cyclone includes overflow pipe (1), cyclone inlets (2), cylindrical section (3), large cone section (4), little
Cone section (5) and underflow opening (6).The cross sectional shape of cyclone inlets (2) is involute shape, and the big cone angle of large cone section is 10～20 °,
The small-angle of small cone section is 1～10 °.0.3～2 times of a diameter of nominal diameter of hydroclone D of overflow pipe, cyclone inlets (2)
0.2～3 times that import cross section equivalent diameter is nominal diameter of hydroclone.Bipyramid hydrocyclone of the present utility model can be used for
Particle diameter solid particle more than 5 μm is isolated, before more slightly higher than traditional list cone cyclone separation efficiency from mixed liquor
Put, can well promote disposal ability.
And for example CN2753462 discloses a kind of Water-sealed hydrocyclone for fine granule separation, and it is by entrance, cylinder
Section vortex chamber, cone section, granule sedimentation chamber, center return pipe, granule sedimentation pipe, overflow pipe, underflow pipe and gripper shoe are constituted, and are profits
Realize separating between granule with water with the effect of centrifugal force.Owing to using gripper shoe, center return pipe and granule in structure
Sedimentation pipe so that the granule of sedimentation and on return existence mass transter between water, can realize running without underflow or little underflow, improve water
Power cyclone is to fine grain separation efficiency.
City river generally deposits seriously and " nutritive salt, persistence Organic substance, heavy metal " heavy contamination, current heavily contaminated
City river sludge handling is all landfill after dredging dehydration, needs bigger landfill yard, owing to current urban human ground contradiction is dashed forward
Go out, it is difficult to find the landfill yard of enough areas, be badly in need of Dredged bed mud carrying out classification process and treating respectively, reach minimizing
Purpose.Pollutant in bed mud include " nutritive salt, persistence Organic substance, heavy metal " three major types, and the bed mud dirt that granule is the thinnest
Dye thing absorption is the most severe.
Summary of the invention
It is an object of the invention to provide a kind of method of fine grained heavily contaminated part bed mud in sharp separation riverbed sludge,
This part meets " standard of soil environment quality " grade III Standard, is dehydrated, can provide after dehydration after being stirred by concentration, dosing, nursed one's health
Sourceization utilizes, including greening soil, fill, marine reclamation land etc..
For solving above-mentioned technical problem, the technological means that the present invention uses is as follows:
A kind of method of fine grained heavily contaminated part bed mud in sharp separation riverbed sludge, it is characterised in that include as follows
Step:
1) use cutter suction dredger by the bed mud sucking-off of river bed or lakebed, use dredging tube to be delivered to sludge handling factory；
2) step 1) dredging tube is delivered to the muddy water pipeline of sludge handling factory and is directly accessed YSC-600N mud pre-screening device；
3) particle diameter in muddy water is more than and is equal to the rubbish of 3mm by YSC-600N mud pre-screening device and foreign material sieve branches away,
And screening rubbish out and foreign material are sent into refuse landfill carry out harmless treatment；
4) will be by step 3) YSC-600N mud pre-screening device process after muddy water send into ZX-250E type mud purification
Device carries out one-level eddy flow operation and two grades of eddy flow operations, wherein: one-level eddy flow operation be by particle diameter in muddy water 0.075～
Discharge separated by the gravel of 3mm；Two grades of eddy flow operations will pollute critical grain size after one-level eddy flow operation is filtered in muddy water
～the cosmid of 0.075mm, separation of powder and granule out discharge；
5) based on step 4), the fine grained heavily contaminated mud after purification being completed pumps into concentration basin and concentrates, after concentration
Dense slush pump send into agitator add solidification medicament, after stirring flow into conditioner nurse one's health, after conditioning use
Mechanical dewatering equipment is dehydrated, and dehydration bed mud is sent into landfill yard and carried out innoxious landfill disposal.
Preferentially, described step 4) in, also include the gravel separated in one-level eddy flow operation is processed recycling work
Skill, it may be assumed that utilizing washed-out sand equipment to be carried out gravel, the gravel after having cleaned recycles.
Preferentially, described step 4) in, also include the cosmid separated in two grades of eddy flow operations, powder are processed profit again
By technique, it may be assumed that utilize mechanical dewatering equipment to be dehydrated, the dehydration bed mud that the cosmid after being dehydrated, powder are formed is carried out again
Utilize.
Beneficial effects of the present invention is as follows: by meet " standard of soil environment quality " grade III Standard bottom-mud dewatering after can
Recycling, including greening soil, fill, marine reclamation land etc..Efficiency is high, and low cost is suitable for promoting the use of.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of the present invention.
Detailed description of the invention
Below in conjunction with detailed description of the invention, it is further elucidated with the present invention, it should be understood that following detailed description of the invention is only used for
The bright present invention rather than restriction the scope of the present invention.
Embodiment 1
As it can be seen,
A kind of method of fine grained heavily contaminated part bed mud in sharp separation riverbed sludge, it is characterised in that include as follows
Step:
1) use cutter suction dredger by the bed mud sucking-off of river bed or lakebed, use dredging tube to be delivered to sludge handling factory；
2) step 1) dredging tube is delivered to the muddy water pipeline of sludge handling factory and is directly accessed YSC-600N mud pre-screening device；
3) particle diameter in muddy water is more than and is equal to the rubbish of 3mm by YSC-600N mud pre-screening device and foreign material sieve branches away,
And screening rubbish out and foreign material are sent into refuse landfill carry out harmless treatment；
4) will be by step 3) YSC-600N mud pre-screening device process after muddy water send into ZX-250E type mud purification
Device carries out one-level eddy flow operation and two grades of eddy flow operations, wherein: one-level eddy flow operation be by particle diameter in muddy water 0.075～
Discharge separated by the gravel of 3mm；Also include the gravel separated in one-level eddy flow operation is processed recycling technique, it may be assumed that
Utilizing washed-out sand equipment to be carried out gravel, the gravel after having cleaned recycles.As: building sand, marine reclamation land.
Two grades of eddy flow operations will pollute the viscous of critical grain size～0.075mm after one-level eddy flow operation is filtered in muddy water
Grain, separation of powder and granule are out discharged；Wherein: pollute critical grain size and refer to that separate in polluted bed mud meets " soil environment quality mark
Accurate " minimum grain size of the bed mud of grade III Standard；
Additionally, also include the cosmid separated in two grades of eddy flow operations, powder are processed recycling technique, it may be assumed that utilize
Mechanical dewatering equipment is dehydrated, and the mud cake that the cosmid after being dehydrated, powder are formed recycles.As: marine reclamation land.
5) based on step 4), the fine grained heavily contaminated mud after purification being completed pumps into concentration basin and concentrates, after concentration
Dense slush pump send into agitator add solidification medicament, solidification medicament is the one in firming agent, chelating agen, dehydrant or several
Kind, flow into conditioner after stirring and nurse one's health, after conditioning, use mechanical dewatering equipment dehydration, dehydration bed mud to send into and fill out
Bury field and carry out innoxious landfill disposal.
Processed by above method, can reach following effect:
1, polluted bed mud minimizing is the most thorough
(1) after isolating grit, can decrement significantly, as a example by basin, Shenzhen, bed mud average moisture content is 50% (water ratio
Gross mass), garbage content is about 5% (rubbish is than gross mass), and more than 0.075mm grit is about 37.1%, and (gravel mass ratio is exhausted
Dry shale amount): 1) do not do any separation decrement: about 1.48m31m can be produced under water3Mud cake, moisture content of the cake is 40%；
2) gravel of more than 0.075mm particle diameter is isolated: about 2.65m31m can be produced under water3Mud cake, has notable
Reduced training.
(2) separate and meet the cosmid of the above particle diameter of " standard of soil environment quality " grade III Standard, powder, can decrement significantly,
As a example by basin, Shenzhen, critical grain size is about the cosmid of 0.023mm, below particle diameter 0.023mm and is about 36.6% (cosmid quality
Than over dry shale amount):
1) gravel of more than 0.075mm particle diameter is isolated: about 2.65m31m can be produced under water3Mud cake；
2) cosmid between particle diameter 0.023mm～0.075mm, powder and the gravel of more than 0.075mm particle diameter are isolated: big
About 5.00m3Side produces 1m under water3Contaminated mud cake, can greatly reduce the dehydration bed mud amount into landfill yard.
2, recycling
Separate grit through washed-out sand equipment clean after, resourcebility utilize, recycling approach include building sand,
Marine reclamation land etc..As a example by basin, Shenzhen, 1m3Side about can isolate 0.1m under water3Gravel, modulus of fineness is about 2.0, contains
Mud amount is about 1.4%, is II class fine sand 3 district through third party testing agency test result.
After meeting the dehydration of " standard of soil environment quality " grade III Standard, resourcebility utilizes, and including greening soil, fill, fills out
Sea make etc..1m3Side about can produce 0.2m under water3Contaminated mud cake, 0.198m3Unpolluted mud cake, it is seen that can enter to fill out
The mud cake amount burying field will reduce half, and can be with recycling.
In addition to the implementation, the present invention can also have other embodiments.All employing equivalents or equivalent transformation shape
The technical scheme become, all falls within the protection domain of application claims.
Claims (3)
1. the method for fine grained heavily contaminated part bed mud in a sharp separation riverbed sludge, it is characterised in that include walking as follows
Rapid:
1) use cutter suction dredger by the bed mud sucking-off of river bed or lakebed, use dredging tube to be delivered to sludge handling factory；
2) step 1) dredging tube is delivered to the muddy water pipeline of sludge handling factory and is directly accessed YSC-600N mud pre-screening device；
3) particle diameter in muddy water is more than and is equal to the rubbish of 3mm by YSC-600N mud pre-screening device and foreign material sieve branches away, and will
Sieve rubbish out and foreign material are sent into refuse landfill and carried out harmless treatment；
4) will be by step 3) YSC-600N mud pre-screening device process after muddy water send into ZX-250E type mud purifying device
Carry out one-level eddy flow operation and two grades of eddy flow operations, wherein: one-level eddy flow operation by particle diameter in muddy water 0.075～3mm
Discharge separated by gravel；Two grades of eddy flow operations after one-level eddy flow operation is filtered by muddy water pollutes critical grain size～
The cosmid of 0.075mm, separation of powder and granule are out discharged；
5) based on step 4), the fine grained heavily contaminated mud after purification being completed pumps into concentration basin and concentrates, dense after concentration
Slush pump is sent into agitator and is added solidification medicament, flows into conditioner and nurse one's health after stirring, and uses machinery after conditioning
Dehydration equipment is dehydrated, and dehydration bed mud is sent into landfill yard and carried out innoxious landfill disposal.
The method of fine grained heavily contaminated part bed mud, its feature in sharp separation riverbed sludge the most according to claim 1
It is, described step 4) in, also include the gravel separated in one-level eddy flow operation is processed recycling technique, it may be assumed that utilize
Gravel is carried out by washed-out sand equipment, and the gravel after having cleaned recycles.
The method of fine grained heavily contaminated part bed mud, its feature in sharp separation riverbed sludge the most according to claim 1
It is, described step 4) in, also include the cosmid separated in two grades of eddy flow operations, powder are processed recycling technique, it may be assumed that
Utilizing mechanical dewatering equipment to be dehydrated, the dehydration bed mud that the cosmid after being dehydrated, powder are formed recycles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610784563.3A CN106277670A (en) | 2016-08-29 | 2016-08-29 | A kind of method of fine grained heavily contaminated part bed mud in sharp separation riverbed sludge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610784563.3A CN106277670A (en) | 2016-08-29 | 2016-08-29 | A kind of method of fine grained heavily contaminated part bed mud in sharp separation riverbed sludge |
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| CN106277670A true CN106277670A (en) | 2017-01-04 |
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| CN201610784563.3A Pending CN106277670A (en) | 2016-08-29 | 2016-08-29 | A kind of method of fine grained heavily contaminated part bed mud in sharp separation riverbed sludge |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107265800A (en) * | 2017-07-03 | 2017-10-20 | 江门市三清环境技术工程有限公司 | A kind of river and lake silt innocuity disposal system and method |
| CN108218181A (en) * | 2018-02-13 | 2018-06-29 | 沈阳环境科学研究院 | A kind of river and lake pool gushes bed mud deep-graded processing system and method |
| CN109626779A (en) * | 2018-11-10 | 2019-04-16 | 天津大学 | A kind of surface water body bed mud treatment in situ system |
| CN110862212A (en) * | 2019-12-17 | 2020-03-06 | 湖北加德科技股份有限公司 | System and process for grading treatment and resource utilization of river and lake bottom mud |
| CN113045151A (en) * | 2021-03-24 | 2021-06-29 | 国网江苏省电力有限公司建设分公司 | Method and device for treating sand-rich slurry and converting sand-rich slurry into filler |
| CN115104500A (en) * | 2021-03-17 | 2022-09-27 | 兴磊资源回收股份有限公司 | Soil for planting |
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| CN101956412A (en) * | 2009-07-21 | 2011-01-26 | 中交上海航道勘察设计研究院有限公司 | Mud and sand separating method used in suction dredger |
| CN102491605A (en) * | 2011-11-16 | 2012-06-13 | 河海大学 | Construction method for carrying out high dehydration on dredging slurry by using swirling flow, condensation, and plate-and-frame |
| CN203613078U (en) * | 2013-12-02 | 2014-05-28 | 山东省环境保护科学研究设计院 | Multi-level auto control screen separation ectopic management system for heavy metal polluted sediment |
-
2016
- 2016-08-29 CN CN201610784563.3A patent/CN106277670A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956412A (en) * | 2009-07-21 | 2011-01-26 | 中交上海航道勘察设计研究院有限公司 | Mud and sand separating method used in suction dredger |
| CN102491605A (en) * | 2011-11-16 | 2012-06-13 | 河海大学 | Construction method for carrying out high dehydration on dredging slurry by using swirling flow, condensation, and plate-and-frame |
| CN203613078U (en) * | 2013-12-02 | 2014-05-28 | 山东省环境保护科学研究设计院 | Multi-level auto control screen separation ectopic management system for heavy metal polluted sediment |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107265800A (en) * | 2017-07-03 | 2017-10-20 | 江门市三清环境技术工程有限公司 | A kind of river and lake silt innocuity disposal system and method |
| CN108218181A (en) * | 2018-02-13 | 2018-06-29 | 沈阳环境科学研究院 | A kind of river and lake pool gushes bed mud deep-graded processing system and method |
| CN109626779A (en) * | 2018-11-10 | 2019-04-16 | 天津大学 | A kind of surface water body bed mud treatment in situ system |
| CN110862212A (en) * | 2019-12-17 | 2020-03-06 | 湖北加德科技股份有限公司 | System and process for grading treatment and resource utilization of river and lake bottom mud |
| CN115104500A (en) * | 2021-03-17 | 2022-09-27 | 兴磊资源回收股份有限公司 | Soil for planting |
| CN115104500B (en) * | 2021-03-17 | 2023-11-14 | 兴磊资源回收股份有限公司 | soil for planting |
| CN113045151A (en) * | 2021-03-24 | 2021-06-29 | 国网江苏省电力有限公司建设分公司 | Method and device for treating sand-rich slurry and converting sand-rich slurry into filler |
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| RJ01 | Rejection of invention patent application after publication |
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