CN102649607A - Classification and separation method for impurities of ballast water - Google Patents
Classification and separation method for impurities of ballast water Download PDFInfo
- Publication number
- CN102649607A CN102649607A CN2011104365913A CN201110436591A CN102649607A CN 102649607 A CN102649607 A CN 102649607A CN 2011104365913 A CN2011104365913 A CN 2011104365913A CN 201110436591 A CN201110436591 A CN 201110436591A CN 102649607 A CN102649607 A CN 102649607A
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- seawater
- impurity
- water
- water ballast
- ballast
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Abstract
The invention discloses a classification and separation method for impurities of ballast water. The classification and separation method comprises the following steps of: coarsely filtering seawater; finely filtering seawater; and the like. The classification and separation method can be autonomously implemented by a shipyard; the seawater is filtered by using a seawater filtering device, so that particles of the impurities entering the ballast water are fined to be below 40 mum; and by a simple method, the impurities can be cleaned out of a ballast water tank, so that the cleaning work of sediments in the ballast water tank is greatly simplified, and meanwhile, the ship design cost and the ship construction cost are reduced.
Description
Technical field
The present invention relates to a kind of ballast water processing, particularly a kind of method of the illiquidity impurity of water ballast being carried out fractional separation.
Background technology
According to " ballast water for ship and settling control and management international convention " and the annex requirement thereof that Maritime Environment Protection Committee announced in 2004, need avoid the deposition of silt at water ballast tank as far as possible.In order to satisfy above requirement, at present, shipyard can only be chosen the ballast water treatment system of band sea water filter device.Use the ballast water treatment system of band sea water filter device to have following problem: at first, the price comparison of equipment own is high, and demand power is bigger, and is also higher to the requirement of electric power and ballast thrust of pump, improved ship design and laid down cost; The second, equipment volume is bigger, need take the bigger working space of watercraft engine room or pump room, reduces the installing space and the service clearance of miscellaneous equipment, and ship design enterprise is difficult to select optimum plan.
Summary of the invention
The invention provides that a kind of shipyard can independently implement, effectively remove the method for big illiquidity impurity in the water ballast at lower cost.
A kind of water ballast impurity of the present invention fractionation method may further comprise the steps:
Step 1: seawater carries out coarse filtration through the seawater separator;
Step 2: get into seawater filtering device through the seawater after step 1 coarse filtration and filter the illiquidity impurity of diameter more than 40 μ m in the filtering seawater;
Step 3: the seawater after filtering in the step 2 gets into the clean sea water container, for boats and ships provide water ballast.
As preferred version, the seawater coarse filtration is removed the impurity particle of diameter more than 5mm in the seawater.
As preferred version, the impurity particle of diameter more than 5mm gets into sand sediment trap in the seawater separator, and discharges outboard by sludge pump.
As preferred version, the illiquidity impurity of diameter more than 40 μ m gets into sand sediment trap in the filtration unit, and discharges outboard by sludge pump.
As preferred version, the seawater separator is arranged in cabin or the pump room.
As preferred version, seawater filtering device is arranged between the boats and ships water bottom.
As preferred version, the clean sea water container is arranged between the boats and ships water bottom.
The present invention utilizes seawater filtering device that seawater is filtered, and the impurity particle that gets in the water ballast is refine to below the 40 μ m.Because the impurity particle of diameter below 40 μ m major part in 30 day time can only be suspended in the water ballast with colloidal state; The settling that is produced is main with flowable floss; Have strong mobile; Can enough simple methods it be cleaned out water ballast tank, greatly simplify the sedimental cleaning work of water ballast tank.Therefore; Using method of the present invention that water ballast is handled need not buy the ballast water treatment plant that has filtration unit and dispose powerful power equipment etc.; Reduce ship design and laid down cost, greatly reduced the sedimental cleaning difficulty of water ballast tank simultaneously.In addition, because main straining installation is arranged between the water bottom, reduced, helped ship design enterprise and select optimum plan to the taking of boats and ships effective working space.The present invention is carrying out in the treating processes water ballast, does not adopt any chemical treatment method or adds any active substance, meets the related request that the MEPC under the IMO tissue protects about marine ecology.
Embodiment
The seawater that contains solid particulate such as a large amount of silts carries out coarse filtration through the seawater separator that is arranged at cabin or pump room, the impurity particle of diameter more than 5mm in the filtering seawater, and impurity particle gets into sand sediment trap through the physics scraping, discharges outboard by sludge pump.Getting into the seawater filtering device that is arranged between the boats and ships water bottom through the seawater after the coarse filtration filters; Remove the illiquidity impurity of diameter more than 40 μ m in the seawater; Illiquidity impurity is the disengaging filtration unit under the forced air effect, gets into sand sediment trap, discharges outboard by sludge pump.Seawater after the filtration gets into and is arranged at the clean sea water container between the boats and ships water bottom, for boats and ships provide water ballast.
Claims (7)
1. water ballast impurity fractionation method may further comprise the steps:
Step 1: seawater carries out coarse filtration through the seawater separator;
Step 2: get into seawater filtering device through the seawater after step 1 coarse filtration and filter the illiquidity impurity of diameter more than 40 μ m in the filtering seawater;
Step 3: the seawater after filtering in the step 2 gets into the clean sea water container, for boats and ships provide water ballast.
2. a kind of water ballast impurity fractionation method according to claim 1 is characterized in that, the seawater coarse filtration is removed the impurity particle of diameter more than 5mm in the seawater in the step 1.
3. a kind of water ballast impurity fractionation method according to claim 2 is characterized in that, the impurity particle of diameter more than 5mm gets into sand sediment trap in the seawater separator, and discharges outboard by sludge pump.
4. a kind of water ballast impurity fractionation method according to claim 1 is characterized in that, the illiquidity impurity of diameter more than 40 μ m gets into sand sediment trap in the seawater filtering device, and discharges outboard by sludge pump.
5. a kind of water ballast impurity fractionation method according to claim 1 is characterized in that the seawater separator is arranged in cabin or the pump room.
6. a kind of water ballast impurity fractionation method according to claim 1 is characterized in that seawater filtering device is arranged between the boats and ships water bottom.
7. a kind of water ballast impurity fractionation method according to claim 1 is characterized in that the clean sea water container is arranged between the boats and ships water bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104365913A CN102649607A (en) | 2011-12-23 | 2011-12-23 | Classification and separation method for impurities of ballast water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104365913A CN102649607A (en) | 2011-12-23 | 2011-12-23 | Classification and separation method for impurities of ballast water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102649607A true CN102649607A (en) | 2012-08-29 |
Family
ID=46691739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104365913A Pending CN102649607A (en) | 2011-12-23 | 2011-12-23 | Classification and separation method for impurities of ballast water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102649607A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06285483A (en) * | 1993-03-31 | 1994-10-11 | Sasakura Eng Co Ltd | Sea water purifying device |
| CN2346787Y (en) * | 1998-10-23 | 1999-11-03 | 温州市远东水处理设备制造有限公司 | Marine seawater desalter |
| CN101781046A (en) * | 2009-11-19 | 2010-07-21 | 上海海事大学 | Ship ballast water processing method combining ozone and photocatalysis |
-
2011
- 2011-12-23 CN CN2011104365913A patent/CN102649607A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06285483A (en) * | 1993-03-31 | 1994-10-11 | Sasakura Eng Co Ltd | Sea water purifying device |
| CN2346787Y (en) * | 1998-10-23 | 1999-11-03 | 温州市远东水处理设备制造有限公司 | Marine seawater desalter |
| CN101781046A (en) * | 2009-11-19 | 2010-07-21 | 上海海事大学 | Ship ballast water processing method combining ozone and photocatalysis |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120829 |