CN106007320A - Magnetic coagulation and magnetic separation type dredger - Google Patents

Magnetic coagulation and magnetic separation type dredger Download PDF

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Publication number
CN106007320A
CN106007320A CN201610426542.4A CN201610426542A CN106007320A CN 106007320 A CN106007320 A CN 106007320A CN 201610426542 A CN201610426542 A CN 201610426542A CN 106007320 A CN106007320 A CN 106007320A
Authority
CN
China
Prior art keywords
magnetic
coagulation
sludge
cutter
dredger
Prior art date
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.)
Pending
Application number
CN201610426542.4A
Other languages
Chinese (zh)
Inventor
魏星
方廷勇
苗春光
胡浙平
魏翰林
韦迪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Huafeng Energy Saving Environmental Protection Science And Technology Co Ltd
Original Assignee
Anhui Huafeng Energy Saving Environmental Protection Science And Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Anhui Huafeng Energy Saving Environmental Protection Science And Technology Co Ltd filed Critical Anhui Huafeng Energy Saving Environmental Protection Science And Technology Co Ltd
Priority to CN201610426542.4A priority Critical patent/CN106007320A/en
Publication of CN106007320A publication Critical patent/CN106007320A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • 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
    • 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
    • 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
    • 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
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • 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
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/92—Digging elements, e.g. suction heads
    • E02F3/9256—Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head
    • E02F3/9268—Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head with rotating cutting elements
    • E02F3/9275—Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head with rotating cutting elements with axis of rotation parallel to longitudinal axis of the suction pipe
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/28—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/28—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways
    • E02F5/282—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways with rotating cutting or digging tools
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/06—Sludge reduction, e.g. by lysis

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Treatment Of Sludge (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

The invention belongs to the technical field of water channel dredging, and discloses a magnetic coagulation and magnetic separation type dredger which comprises a sludge cutter-suction device arranged on the tail of the dredger, a coagulation box, a magnetic separation box, a sludge drying machine, a dry sludge box and the like. The sludge cutter-suction device comprises an adjustable cutter and a cutter-suction pump. The cutter and the cutter-suction pump are connected through a cutter-suction pipe. The whole sludge cutter-suction device is fixed to the tail of the dredger through a portal frame. A winch is connected with the sludge cutter-suction device through a mooring rope. The included angle between the sludge cutter-suction device and the bottom of a river channel can be automatically controlled so as to reach the best working state. Sludge is sucked up, coagulated, magnetically separated, dried, stored and transported outwards. The sludge-water separation speed is high, working efficiency is high, and equipment is simple and easy to use. The magnetic coagulation and magnetic separation type dredger can be widely applied to sludge dredging work for rivers, rivers and reservoirs, and has the good popularization prospect.

Description

A kind of magnetic kind coagulation Magneto separate formula dredger
Technical field
The invention belongs to water channel dredging technology field, be specifically related to a kind of magnetic kind coagulation Magneto separate formula dredger.
Background technology
China's medium and small river channel sedimentation phenomenon is commonplace, and the original flood of regulating and storing in river course has subtracted with the ability prevented and reduced natural disasters Weak.Channel cleanout referred generally to plant equipment, is blown by the mud of deposition river bed and stirs into turbid water shape, flows away with river, thus Play the effect of dredging.Channel cleanout is a complicated system engineering, relate to environmental conservation and beautify, littoral Planning and Development, Shore-environment recovers, the desilting of sea, river subtracts deposit technique, research and development etc. are equipped in desilting.
At present channel cleanout from the past only improving river flood control, drain flooded fields and irrigate the traditional water conservancy engineering of ability Target is expanded to Ecological waterscape target, say, that all contains in the target of a lot of channel cleanout engineerings and is reduced the endogenous dirt in river course Dye, improves the engineering purpose provided safeguard for river water quality.Mostly the desilting engineering in general river course is based on manual physical's work Mode completes, and large-scale desilting desilting ship is built also for the extensive dredging work of harbour, navigation channel or great rivers Make, it is impossible in entrance, river channel is constructed, thus middle and small river desilting engineering in general do not have most suitable desilting equip into Row construction, and it is an object of the invention to provide a kind of device being applicable to the desilting work such as small and medium river channel, lake, reservoir.
Summary of the invention
The present invention aims at: a kind of magnetic kind coagulation Magneto separate formula dredger of research and development, can be widely used for medium or smallsized river The mud cleaning in lake.The technical solution used in the present invention is:
A kind of magnetic kind coagulation Magneto separate formula dredger, specifically includes mud strand desorption system, coagulation system, magnetic separation system, mud Anhydration system.
Described mud strand desorption system includes reamer, dredging tube, portal frame, hoist engine, twists sucking pump.Reamer passes through support and cable Rope is connected with hoist engine, and portal frame plays a supportive role.The reamer back lower place is provided with dredging tube, is connected with strand sucking pump, twists sucking pump Outlet is connected with coagulation case by pipeline, stirs mud when reamer starts bottom riverbed, forms mud mixture, and strand sucking pump opens Dynamic, by strand suction pipe, mud mixture is sucked in coagulation case.
Described coagulation system includes coagulation case, flocculant tank, electromagnetic valve, dosing pump, magnetic kind agent tank, agitator.Flocculant Tank and magnetic kind agent tank are respectively used for depositing flocculant and magnetic kind agent, and when filling mud mixture in coagulation case, electromagnetic valve is opened, meter Amount pump startup, pumps in coagulation case respectively by flocculant and magnetic kind agent.Flocculant is chitin composite flocculant, and input amount is 20 ～80mg/L, magnetic kind agent is Fe3O4Powder, particle diameter is in 2～10 μm, and input amount is 100～350mg/L, starts agitator, rotating speed 150～350r/min, mixing time 5～10min.
Described magnetic separation system includes Magneto separate case, disk magnetic separator, mud-scraping mechanism, Magneto separate drum unit.Coagulation is complete The muddy water become enters magnetic separation system, owing to defining substantial amounts of Magnetic composite flocs in water, under the effect of high-intensity magnetic field, is inhaled rapidly Being attached on disk magnetic separator, disk magnetic separator rotates with 5～10r/min rotating speeds, when rotating to mud-scraping mechanism, is gathered in Mud in disk groove is intercepted magnetic kind simultaneously by mud-scraping mechanism and is recovered to recycle.Mud enters mud anhydration system and does Change processes.
Described mud anhydration system includes storage basin, mud desiccation machine, sludge pump, dry mud box.Mud enters mud mummification After machine, isolated water directly drains back in river enter piping, and dry mud is delivered to dry mud box and stored.
Further illustrating as technique scheme, described flocculant is chitin composite flocculant, is gathered by powdery shell Sugared and 1.8% acetic acid (HAC) aqueous solution is compounded into the liquid flocculant of less than 10%.
Further illustrating as technique scheme, described magnetic kind is the Fe through silanization treatment3O4Powder.
The present invention is mainly by following gain effect:
(1) waste water speed is fast, ability is big, efficiency is high in process；
(2) device simple, processing ease, operation and maintenance cost are low；
(3) magnetic treatment can be reduced or avoided use chemical drugs, eliminates secondary pollution；
(4) treatment effect is not the most by water temperature and climate change effect.
Accompanying drawing explanation
Fig. 1 one magnetic kind coagulation Magneto separate formula dredger schematic diagram
Fig. 2 one magnetic kind coagulation Magneto separate formula dredger plane graph
Fig. 3 disk composite magnetic gathering magnetic separator schematic diagram
Fig. 4 Magneto separate efficiency adds concentration broken line graph with magnetic kind
Fig. 5 Magneto separate efficiency adds concentration broken line graph with flocculant
Specifically include: reamer (1), dredging tube (2) portal frame (3), hoist engine (4), strand sucking pump (5), agitator (6) coagulation case (7), flocculant tank (8), electromagnetic valve (9), dosing pump (10), magnetic kind agent tank (11), Magneto separate case (12), magnetic separator (13), Mud-scraping mechanism (14), storage basin (15), sludge pump (16), mud desiccation machine (17), dry mud box (18), flat-bottomed boat (19).
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further details, as it is shown in figure 1, a kind of magnetic kind coagulation Magneto separate formula is clear Silt ship specifically includes: reamer (1), dredging tube (2) portal frame (3), hoist engine (4), strand sucking pump (5), agitator (6) coagulation case (7), flocculant tank (8), electromagnetic valve (9), dosing pump (10), magnetic kind agent tank (11), Magneto separate case (12), magnetic separator (13), Mud-scraping mechanism (14), storage basin (15), sludge pump (16), mud desiccation machine (17), dry mud box (18), flat-bottomed boat (19).
Embodiment one
1, on flat-bottomed boat, set up mud strand desorption system, coagulation system, magnetic separation system, mud anhydration system；
2, starting strand haustorium, mud is twisted after sucking pump suction comes up enters coagulation case；
3, opening electromagnetic valve, start dosing pump and add flocculant and magnetic kind to coagulation case, flocculant concentration concentration is 80mg/L, It is 150mg/L that magnetic kind adds concentration, starts agitator stirring 5min simultaneously.
4, stopping stirring after coagulation completes, open valve and the water after coagulation is introduced magnetic separation system, disk running speed is 10r/ min.Disengaging time 10min.
5, start mud desiccation machine, separate isolated containing water slurry mummification.
6, hereafter magnetic kind is added concentration and be incremented by 50mg/L successively, until 300mg/L.Record Magneto separate effect change, knot Fruit is as shown in Figure 4.
It can be seen that other condition is constant from above chart, along with magnetic kind adds increasing concen-trations, separating effect is also increasing Adding, but the separating effect increased after 250mg/L is the most limited, overall separation efficiency has reached 90%.Therefore with this understanding, Magnetic kind most preferably adds concentration 200～250mg/L.
Embodiment two
1, on flat-bottomed boat, set up mud strand desorption system, coagulation system, magnetic separation system, mud anhydration system；
2, starting strand haustorium, mud is twisted after sucking pump suction comes up enters coagulation case；
3, opening electromagnetic valve, start dosing pump and add flocculant and magnetic kind to coagulation case, flocculant concentration concentration is 20mg/L, It is 250mg/L that magnetic kind adds concentration, starts agitator stirring 5min simultaneously.
4, stopping stirring after coagulation completes, open valve and the water after coagulation is introduced magnetic separation system, disk running speed is 10r/ min.Disengaging time 10min.
5, start mud desiccation machine, separate isolated containing water slurry mummification.
6, hereafter flocculant concentration concentration is incremented by 20mg/L successively, until 80mg/L.Record Magneto separate effect change, Result is as shown in Figure 5.
It can be seen that other condition is constant from above chart, along with magnetic kind adds increasing concen-trations, separating effect is also increasing Adding, but the separating effect increased after 60mg/L is the most limited, overall separation efficiency has reached 90%.Therefore with this understanding, wadding Solidifying agent most preferably adds concentration 60～80mg/L.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned enforcement Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that, for the art Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications are also Should be regarded as protection scope of the present invention.

Claims (5)

1. a magnetic kind coagulation Magneto separate formula dredger, specifically includes: reamer (1), dredging tube (2) portal frame (3), hoist engine (4), strand sucking pump (5), agitator (6) coagulation case (7), flocculant tank (8), electromagnetic valve (9), dosing pump (10), magnetic kind agent tank (11), Magneto separate case (12), magnetic separator (13), mud-scraping mechanism (14).Storage basin (15), sludge pump (16), mud desiccation machine (17), dry mud box (18), flat-bottomed boat (19).
A kind of magnetic kind coagulation Magneto separate formula dredger, it is characterised in that add the magnetic kind of coagulation case For the Fe through silanization treatment3O4Powder, adding concentration is 150mg/L～350mg/L.
A kind of magnetic kind coagulation Magneto separate formula dredger, it is characterised in that add the flocculation of coagulation case Agent is chitin composite flocculant, and acetic acid (HAC) aqueous solution of powdered chitosan and 1.8% is compounded into the liquid wadding of less than 10% Solidifying agent, is chitin composite flocculant, and adding concentration is 20mg/L～80mg/L.
The most according to claim 1, a kind of magnetic kind coagulation Magneto separate formula dredger, its feature is permanent magnetism at magnetic separator (13) Bluk recombination poly-magnetic disk magnetic separator, disk diameter 0.4～2m, material is rare-earth magnet.
A kind of magnetic kind coagulation Magneto separate formula dredger, it is characterised in that flat-bottomed boat (17) material is Polypropylene (PP) or carbon steel.Captain 10～35 meters, wide 3～7 meters, high 1.5～3 meters.
CN201610426542.4A 2016-06-16 2016-06-16 Magnetic coagulation and magnetic separation type dredger Pending CN106007320A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106277678A (en) * 2016-10-21 2017-01-04 深圳市深水水务咨询有限公司 River bottom mud waterborne moveable processing system
CN107324628A (en) * 2017-06-08 2017-11-07 浙江正翰环保科技有限公司 A kind of Magneto separate formula sludge treating system and its processing method
WO2018116318A1 (en) * 2016-12-19 2018-06-28 Doris Mineral Resources Private Limited A system and method thereof for off shore mining
CN109403411A (en) * 2018-11-09 2019-03-01 中国电建集团贵阳勘测设计研究院有限公司 River bottom dredging device
CN110697970A (en) * 2019-10-31 2020-01-17 东北电力大学 Residual water treatment system and method for dredging and water ecological restoration ship

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106277678A (en) * 2016-10-21 2017-01-04 深圳市深水水务咨询有限公司 River bottom mud waterborne moveable processing system
WO2018116318A1 (en) * 2016-12-19 2018-06-28 Doris Mineral Resources Private Limited A system and method thereof for off shore mining
CN107324628A (en) * 2017-06-08 2017-11-07 浙江正翰环保科技有限公司 A kind of Magneto separate formula sludge treating system and its processing method
CN109403411A (en) * 2018-11-09 2019-03-01 中国电建集团贵阳勘测设计研究院有限公司 River bottom dredging device
CN109403411B (en) * 2018-11-09 2024-03-19 中国电建集团贵阳勘测设计研究院有限公司 River bottom dredging device
CN110697970A (en) * 2019-10-31 2020-01-17 东北电力大学 Residual water treatment system and method for dredging and water ecological restoration ship

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Application publication date: 20161012