CN101956412A - Mud and sand separating method used in suction dredger - Google Patents
Mud and sand separating method used in suction dredger Download PDFInfo
- Publication number
- CN101956412A CN101956412A CN2009100551751A CN200910055175A CN101956412A CN 101956412 A CN101956412 A CN 101956412A CN 2009100551751 A CN2009100551751 A CN 2009100551751A CN 200910055175 A CN200910055175 A CN 200910055175A CN 101956412 A CN101956412 A CN 101956412A
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- Prior art keywords
- hydrocyclone
- mud
- sand
- dredger
- separating
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000004576 sand Substances 0.000 title abstract description 10
- 239000010419 fine particle Substances 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000013049 sediment Substances 0.000 claims description 6
- 230000008676 import Effects 0.000 claims description 2
- 238000007599 discharging Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract 1
- 238000005266 casting Methods 0.000 description 4
- 239000004746 geotextile Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 230000000295 complement effect Effects 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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- Treatment Of Sludge (AREA)
Abstract
The invention relates to a mud and sand separating method used in a suction dredger, belonging to the sand-collecting technology of dredgers and solving the technical problem of providing a mud and sand separating method matched with a suction dredger for use. The mud and sand separating method comprises the following steps of: additionally installing a hydrocyclone on a shore-discharging pipeline outlet of the suction dredger, injecting mud with low concentration and more fine particle content, dredged by the dredger, into the hydrocyclone, separating and concentrating the mud by using centrifugal action generated by the hydrocyclone; and after subjected to separation and concentration, discharging the mud with higher concentration into a filling region from a bottom outlet of the hydrocyclone or for filling a sand bag, and discharging most of water and fine-particular mud and sand out of an overflow hole of the hydrocyclone. The invention is used for separating the mud from the sand by the suction dredger.
Description
Technical field
The present invention relates to cutter suntion dredger and adopt husky technology.
Background technology
Coastal big and medium-sized cities constantly form new land-based area to satisfy the demand of socio-economic development by the mode of corral and hydraulic reclamation tidal-flat area, and this process is called hydraulic reclamation epeirogenetic in dredging works.Present domestic hydraulic reclamation epeirogenetic construction is based on cutter suntion dredger, and it is higher that such boats and ships are equipped with pump machine lift.In hydraulic reclamation epeirogenetic process, primary step is to be used to intercept silt by building the cofferdam, and coastal because the scarcity of banking material adopts the form of geotextile filling bag to construct the cofferdam at present.Unfavorable factors such as the coastal fine sediment of China is more, and is slow in view of the sediment settlement that fine particle content is more, that discharging consolidation speed is slow, the short-term consolidation strength is low, the husky source of satisfying the requirement of hydraulic reclamation epeirogenetic or geotextile filling sandbag soil property is less.
Hydraulic reclamation epeirogenetic and geotextile filling bag all have certain requirement to its used casting resin.Should surpass 50% as the above granule content of hydraulic reclamation engineering general requirements hydraulic reclamation material particle diameter 0.05mm, particle diameter is less than 15% less than 0.005mm content.And " marine traffic engineering Technical code for application of geosynthetics " regulation, " casting resin should be selected sand soil for use, and particle diameter should be greater than 50% greater than the granule content of 0.075mm, clay (particle diameter＜0.005mm) content should be controlled in 10% ".
Because coastal river (sea) bed substrate presss from both sides Sha Weizhu with mud, general fine sediment content is more, is difficult to obtain the husky source of satisfying hydraulic reclamation epeirogenetic or the sandy requirement of filling sandbag in most of engineerings nearby.For filling bag embankment, the general qualified husky sources, surrounding area of adopting as casting resin more, and this makes the cost of fill significantly increase.For hydraulic reclamation epeirogenetic, because required silt side amount is more, can only draw materials nearby, but often needing to spend the great amount of manpower financial resources, the land-based area of unfavorable sandy formation carries out further ground processing.If can directly isolate satisfactory casting resin, then can save engineering cost from existing Sha Yuanzhong.
Hydrocyclone is a kind of mature equipment of separating heterogeneous liquid mixture according to different phase density differences, generally form by cylinder barrel segment, conic tube section, overfall, underflow opening and inflow port, its basic principle is: the mixture of heterogeneous composition enters in the cylindrical drum chamber along the side tangential direction on cylindrical tube top, thereby in the cylindrical drum chamber, form the flow field of rotation, the component that density is big in the mixture under centrifugal action along radially outward moving, move downward vertically simultaneously, discharge by underflow opening at last, so just formed outer eddy flow; The component that density is little is moved to central axial direction, and forms an interior eddy flow that moves upward in axis centre, is discharged by overfall then, has so just reached two purposes that are separated.
Summary of the invention
The technical issues that need to address of the present invention provide the matching used silt method for separating of a kind of cutter suntion dredger.
Technical scheme of the present invention is by installing hydrocyclone additional in row's bank pipeline outlet of cutter suntion dredger, mud low concentration, that fine particle content is more that dredge boat excavated is injected hydrocyclone, and the centrifugal action of utilizing hydrocyclone to produce is carried out sorting to mud and is concentrated; After sorting and concentrating, the higher mud of concentration enters the filling area or is used for the filling sandbag from the underflow opening of hydrocyclone, and most of water and fine sediment then efflux through the overfall of hydrocyclone.For the treating capacity that makes hydrocyclone and flow, the lift of cutter suntion dredger dredge pump are complementary, can adopt a plurality of hydrocyclone parallel connections in groups, parallel form can adopt circumferential arrangement or linear array.
The present invention utilizes the hydrocyclone sorting and concentrates the technology of thick sand grain, can sub-elect the inapplicable husky source in the engineering zone can be for the husky source of the high-quality of utilizing, thereby avoid the expensive sand of getting at a distance, can reach nearby the purpose of drawing materials, saving cost.Hydrocyclone used in the present invention is without any moving component; simple in structure, simple and easy to do; have and make and easy to maintenance, energy consumption and advantages such as cost is low, economic and reliable, have very positive meaning for coastal hydraulic reclamation epeirogenetic and geotextile filling bag embankment.
Description of drawings
Fig. 1 is and matching used silt sorting of cutter suntion dredger and enrichment facility schematic diagram.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the structural representation of hydrocyclone.
The specific embodiment
The present invention's (seeing Fig. 1, Fig. 2) is installed hydrocyclone 2 additional in row's bank pipeline 10 outlets of cutter suntion dredger 8, hydrocyclone 2 adopts support frame 1 to be placed near the land of cutter suntion dredger row bank pipeline 10 outlets.Dredge pump 9 injects hydrocyclone 2 with mud low concentration, that fine particle content is more that dredge boat 2 is excavated through cutter suntion dredger row's bank pipeline 10 and hydrocyclone inlet 5.The centrifugal action of utilizing hydrocyclone 2 to be produced, mud sorting and concentrated in hydrocyclone cylinder barrel segment 11 and hydrocyclone circle conical cylinder section 12, the higher mud of concentration enters the filling area or is used for the filling sandbag from the underflow opening 7 of hydrocyclone afterwards, and most of water and fine sediment then efflux through the overfall 6 and the overflow header 4 of hydrocyclone.For the treating capacity that makes hydrocyclone and flow, the lift of cutter suntion dredger dredge pump are complementary, can adopt a plurality of hydrocyclone parallel connections in groups, 10 of cutter suntion dredger row bank pipelines connect each hydrocyclone through afflux distribution import 3 and enter the mouth 5, and a plurality of hydrocyclone parallel forms can adopt circumferential arrangement or linear array.
Claims (2)
1. the silt method for separating that uses of cutter suntion dredger, it is characterized in that in row's bank pipeline outlet of cutter suntion dredger, installing hydrocyclone additional, mud low concentration, that fine particle content is more that dredge boat excavated is injected hydrocyclone, and the centrifugal action of utilizing hydrocyclone to produce is carried out sorting to mud and is concentrated; After sorting and concentrating, the higher mud of concentration enters the filling area or is used for the filling sandbag from the underflow opening of hydrocyclone, and most of water and fine sediment then efflux through the overfall of hydrocyclone.
2. the silt method for separating that cutter suntion dredger according to claim 1 uses is characterized in that adopting a plurality of hydrocyclone parallel connections in groups, and cutter suntion dredger row bank pipeline distributes import to connect each hydrocyclone inlet through afflux.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100551751A CN101956412A (en) | 2009-07-21 | 2009-07-21 | Mud and sand separating method used in suction dredger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100551751A CN101956412A (en) | 2009-07-21 | 2009-07-21 | Mud and sand separating method used in suction dredger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101956412A true CN101956412A (en) | 2011-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2009100551751A Pending CN101956412A (en) | 2009-07-21 | 2009-07-21 | Mud and sand separating method used in suction dredger |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102373703A (en) * | 2011-11-24 | 2012-03-14 | 中铁二十一局集团有限公司 | Centrifugal sand remover for bridge pile foundation construction and application method thereof |
| CN104018841A (en) * | 2014-05-15 | 2014-09-03 | 中国冶金矿业鞍山冶金设计研究院有限责任公司 | Seabed ore sand pulling sucker |
| CN104261641A (en) * | 2014-09-10 | 2015-01-07 | 山东科技大学 | Separation and dehydration device and process of river and reservoir sediment |
| CN106277670A (en) * | 2016-08-29 | 2017-01-04 | 曹鹏 | A kind of method of fine grained heavily contaminated part bed mud in sharp separation riverbed sludge |
-
2009
- 2009-07-21 CN CN2009100551751A patent/CN101956412A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102373703A (en) * | 2011-11-24 | 2012-03-14 | 中铁二十一局集团有限公司 | Centrifugal sand remover for bridge pile foundation construction and application method thereof |
| CN104018841A (en) * | 2014-05-15 | 2014-09-03 | 中国冶金矿业鞍山冶金设计研究院有限责任公司 | Seabed ore sand pulling sucker |
| CN104018841B (en) * | 2014-05-15 | 2016-03-16 | 中国冶金矿业鞍山冶金设计研究院有限责任公司 | Seabed ore in sand form takes off suction nozzle |
| CN104261641A (en) * | 2014-09-10 | 2015-01-07 | 山东科技大学 | Separation and dehydration device and process of river and reservoir sediment |
| CN104261641B (en) * | 2014-09-10 | 2015-11-25 | 山东科技大学 | The sorting dewatering unit of a kind of river and reservoir deposits and technique |
| CN106277670A (en) * | 2016-08-29 | 2017-01-04 | 曹鹏 | A kind of method of fine grained heavily contaminated part bed mud in sharp separation riverbed sludge |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20110126 |