CN101962780B - Solution tank for PS-version continuous production and degreasing method thereof - Google Patents
Solution tank for PS-version continuous production and degreasing method thereof Download PDFInfo
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- CN101962780B CN101962780B CN2010102915469A CN201010291546A CN101962780B CN 101962780 B CN101962780 B CN 101962780B CN 2010102915469 A CN2010102915469 A CN 2010102915469A CN 201010291546 A CN201010291546 A CN 201010291546A CN 101962780 B CN101962780 B CN 101962780B
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Abstract
The invention relates to a solution tank for PS-version continuous production and a degreasing method thereof. At present, along with increasing concern of national problems of environmental protection and energy conservation and emission reduction, numerous metal surface treatment manufacturers pay more and more attention to treatment and discharge of chemical pollutants. The solution tank is divided into two separate solution tanks through a fixed baffle and a movable baffle; a solution reflux port is formed on one side of the solution tank and a discharge port is formed on the other side of the solution tank; a solution upward circulation port is formed on one side of the solution tank; degreasing liquid is prepared through degreasing conditions and technology, and due to circular treatment of the degreasing liquid, and the degreasing liquid is always clean and passes through the solution upward circulation port to enter a treatment tank of a production line for recycling. The solution tank has the advantages of saving sodium hydroxide in PS-version production links, reducing the production cost and environmental pollution, and obviously improving the energy conservation and emission reduction and reduction of environmental pollution.
Description
Technical field
The invention belongs to field of metal surface treatment, be specifically related to solution tank and degreasing method thereof that a kind of PS of being used for version serialization is produced.
Background technology
The PS version is produced and belonged to the traditional processing industry, and the technological process of production is as shown in Figure 1, and main process is: the metal aluminium plate base is removed the ROLLING OIL and the anticorrosion grease on surface through the alkali cleaning 1 of certain temperature, is called for short skimming treatment or oil removing process; With the reactant that gets into after the flushing with clean water in the pickling with aluminium plate surface alkali cleaning, with after the washing flushing, send into next process once more.
The aluminium plate base ubiquity surface working that present domestic aluminum fabrication plant provides is used to make the PS version is handled bad, and the calendering line is dark excessively, oxidation line, oxidation spot, be pressed into problems such as thing is more.The degreasing link is first link during the PS version is produced; Require the aluminium surface must handle very clean; Extremely important to follow-up electrolysis, oxide treatment; If degreasing process to the sordid words of metallic aluminium surface treatment, directly can cause the electrolytic graining structure undesirable with quality problems such as sull sticking power is not enough.
At present numerous domestic PS version manufacturer all handles material surface oxidation dirt settling and greasy dirt adopting traditional three component formula (sodium hydroxide, sodium phosphate, Sunmorl N 60S) to carry out degreasing metal surface technology with the higher Heating temperature (65-75 ℃) of employing, and is all carrying out the solution use that refluxes repeatedly with a unimpeded solution tank.Though such treatment process is simple, there is certain problem:
1, sodium phosphate is a kind of weak acid and weak base salt in the conventional formulation; Metallic aluminium there is not significant corrosive nature; It is a kind of good buffer reagent; And being difficult for making the aluminium surface to form the requirement that planeness satisfies subsequent treatment process, required reaction times and temperature will extend accordingly and raise to produce and be difficult to control.
2, sodium hydroxide is highly basic, has very strong saponification ability, and metallic aluminium is had very strong corrosive nature; The content of sodium hydroxide is high more, and the effect of electrochemical deoiling is good more, but the content of sodium hydroxide can not be too high; Because in sodium hydroxide solution; Not only make the aluminium loss too much, resultant of reaction also can increase, and forms AL
2O
3The fouling throw out is difficult to dissolving, can reduce deoiling effect on the contrary.Using in a large number and discharging of while sodium hydroxide, unfavorable to environment protection and energy-saving and emission-reduction;
3, adopt a degreasing tank to carry out solution circulated and can cause degreasing fluid to pollute, be difficult for thoroughly removing the impurity on metallic aluminium surface, be unfavorable for solution emission control and cleaning simultaneously.
At present; Along with domestic growing interest to environment protection and energy-saving and emission-reduction problem; Numerous metal finishing manufacturer more and more pays close attention to the improvement and the discharging of chemical pollution, solves the PS version simultaneously and removes the hot issue that the improvement problem of oil solution will become the research of numerous PS version manufacturer in producing.
Summary of the invention
The technical problem that the present invention solved provides degreasing method and a kind of original treatment solution discharging back that solves of impurity such as a kind of greasy dirt that can thoroughly remove the metallic aluminium surface attachment, oxide compound without purifying the solution tank that directly utilizes the production line contaminated aqueous solution problem that is caused again.
For solving above-mentioned technical problem, the technical scheme that the present invention takes:
Special character of the present invention is: described solution tank is divided into two independent solution tanks through fixed dam and shifting board, and a side of solution tank is provided with the solution refluxing opening, and opposite side is provided with drain, and a side of solution tank is provided with solution to upper cycling mouth.
The height of above-mentioned fixed dam is lower than the cell wall height of solution tank.
The special character of degreasing method of the present invention is: the step of described degreasing method is following:
(1), preparation degreasing fluid: prepare 40 ~ 60 parts in sodium hydroxide, 20 ~ 30 parts in SODIUMNITRATE, 0.2 ~ 0.4 part of complexed surfactant, the solution that configures places solution tank to be heated to 55 ~ 66 ℃, uses in order to production line;
(2), degreasing condition and technology: the solution that configures is transported in the production line oil removing process case to upper cycling mouth 6 through solution with pump; Aluminium plate base is after oil removing segment process case back warp shower sprays 10 ~ 20 seconds; Through the neutralization washing; Get into the electrolysis process processing section, skim soln in use will be added according to the regular trace of service condition;
(3), the circular treatment of degreasing fluid: the production line solution refluxing opening of the degreasing fluid after step (2) use through solution tank is discharged in the solution tank; Degreasing fluid process in solution tank stops and deposition; Make the impurity of handling be separated to the bottom of solution tank through natural sedimentation with the muddy throw out; The degreasing fluid of the cleaning after the separation covers fixed dam and shifting board flow in the solution tank; Because the solution of solution tank does not directly receive reflux solution, so the solution of solution tank can be not contaminated, feed liquor all relies on solution tank to cover fixed dam and shifting board inflow through the solution of post precipitation; So be in clean state all the time, degreasing fluid recycles to the treatment trough that upper cycling mouth 6 gets into production line again through solution.
Compared with prior art, beneficial effect of the present invention:
1, obviously changes metallic aluminium surface degreasing effect, the defective on aluminium surface is handled completely, reach the PS version and produce requirement the aluminium surface quality;
2, the use of sodium hydroxide in the saving PS version production link reduces production costs and environmental pollution must influence, and energy-saving and emission-reduction, minimizing environmental pollution are improved significantly.
3, reduce the treatment temp of solution, practiced thrift using and consuming of electric power resource.
4, this process method can be promoted in the metal finishing industry, in the production cost of practicing thrift manufacturing enterprise greatly, can be environment protection and makes certain contribution.
Description of drawings
Fig. 1 is PS version production technique figure;
Fig. 2 is the structural representation of solution tank.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is elaborated.
Solution tank of the present invention is divided into two independent solution tanks 1,2 through fixed dam 3 and shifting board 5; Make it become the two-stage solution tank; Form the function of natural filtration; The solution of solution tank 1 can not polluted by the solution that the production line discharging refluxes, can keep clean all the time, and the solution cell body is cleared up easily.Wherein, Solution after production line is handled is discharged into solution tank 2; Solution arrives the trough bottom in groove 2 the inside natural sedimentations with the throw out natural sedimentation that reaction generates, and a side of solution tank 2 is provided with the solution refluxing opening; Opposite side is provided with drain 7, and a side of solution tank 1 is provided with solution to upper cycling mouth 6.
The height of fixed dam 3 is lower than the cell wall height of solution tank 1,2.
Embodiment 1: the step of degreasing method of the present invention is following:
(1), preparation degreasing fluid: prepare 40 parts in sodium hydroxide, 20 parts in SODIUMNITRATE, 0.2 part of complexed surfactant, the solution that configures places solution tank 1 to be heated to 55 ℃, uses in order to production line;
(2), degreasing condition and technology: the solution that configures is transported in the production line oil removing process case to upper cycling mouth 6 through solution with pump; Aluminium plate base is after oil removing segment process case back warp shower sprays 10 seconds; Through the neutralization washing; Get into the electrolysis process processing section, skim soln in use will be added according to the regular trace of service condition;
(3), the circular treatment of degreasing fluid: the production line solution refluxing opening 4 of the degreasing fluid after step (2) use through solution tank 2 is discharged in the solution tank 2; Degreasing fluid process in solution tank 2 stops and deposition; Make the impurity of handling be separated to the bottom of solution tank 2 through natural sedimentation with the muddy throw out; The degreasing fluid of the cleaning after the separation covers fixed dam 3 and flow in the solution tank 1 with shifting board 5; Because the solution of solution tank 1 does not directly receive reflux solution, so the solution of solution tank 1 can be not contaminated, his feed liquor all relies on solution tank 2 to cover fixed dam 3 and shifting board 5 inflows through the solution of post precipitation; So be in clean state all the time, degreasing fluid recycles to the treatment trough that upper cycling mouth 6 gets into production line again through solution.
Embodiment 2: the step of degreasing method of the present invention is following:
(1), preparation degreasing fluid: prepare 50 parts in sodium hydroxide, 25 parts in SODIUMNITRATE, 0.3 part of complexed surfactant, the solution that configures places solution tank 1 to be heated to 60 ℃, uses in order to production line;
(2), degreasing condition and technology: the solution that configures is transported in the production line oil removing process case to upper cycling mouth 6 through solution with pump; Aluminium plate base is after oil removing segment process case back warp shower sprays 15 seconds; Through the neutralization washing; Get into the electrolysis process processing section, skim soln in use will be added according to the regular trace of service condition;
(3), the circular treatment of degreasing fluid: the production line solution refluxing opening 4 of the degreasing fluid after step (2) use through solution tank 2 is discharged in the solution tank 2; Degreasing fluid process in solution tank 2 stops and deposition; Make the impurity of handling be separated to the bottom of solution tank 2 through natural sedimentation with the muddy throw out; The degreasing fluid of the cleaning after the separation covers fixed dam 3 and flow in the solution tank 1 with shifting board 5; Because the solution of solution tank 1 does not directly receive reflux solution, so the solution of solution tank 1 can be not contaminated, his feed liquor all relies on solution tank 2 to cover fixed dam 3 and shifting board 5 inflows through the solution of post precipitation; So be in clean state all the time, degreasing fluid recycles to the treatment trough that upper cycling mouth 6 gets into production line again through solution.
Embodiment 3: the step of degreasing method of the present invention is following:
(1), preparation degreasing fluid: prepare 60 parts in sodium hydroxide, 30 parts in SODIUMNITRATE, 0.4 part of complexed surfactant, the solution that configures places solution tank 1 to be heated to 66 ℃, uses in order to production line;
(2), degreasing condition and technology: the solution that configures is transported in the production line oil removing process case to upper cycling mouth 6 through solution with pump; Aluminium plate base is after oil removing segment process case back warp shower sprays 20 seconds; Through the neutralization washing; Get into the electrolysis process processing section, skim soln in use will be added according to the regular trace of service condition;
(3), the circular treatment of degreasing fluid: the production line solution refluxing opening 4 of the degreasing fluid after step (2) use through solution tank 2 is discharged in the solution tank 2; Degreasing fluid process in solution tank 2 stops and deposition; Make the impurity of handling be separated to the bottom of solution tank 2 through natural sedimentation with the muddy throw out; The degreasing fluid of the cleaning after the separation covers fixed dam 3 and flow in the solution tank 1 with shifting board 5; Because the solution of solution tank 1 does not directly receive reflux solution, so the solution of solution tank 1 can be not contaminated, his feed liquor all relies on solution tank 2 to cover fixed dam 3 and shifting board 5 inflows through the solution of post precipitation; So be in clean state all the time, degreasing fluid recycles to the treatment trough that upper cycling mouth 6 gets into production line again through solution.
When solution tank 2 bottom settlings things reach a certain amount of, can carry out sediment discharge through drain 7, thereby guarantee the cleanliness factor of solution in the solution tank 1; When solution uses to a certain degree, when needing thoroughly to clear up trough, draw back shifting board 5 usefulness flushing with clean water and get final product.
The present invention and original compared with techniques are by following advantage:
1, obviously changes metallic aluminium surface degreasing effect, the defective on aluminium surface is handled completely, reach the PS version and produce requirement the aluminium surface quality;
2, the use of sodium hydroxide in the saving PS version production link reduces production costs and environmental pollution must influence, and energy-saving and emission-reduction, minimizing environmental pollution are improved significantly.
3, reduce the treatment temp of solution, practiced thrift using and consuming of electric power resource.
4, this process method can be promoted in the metal finishing industry, in the production cost of practicing thrift manufacturing enterprise greatly, can be environment protection and makes certain contribution.
The index contrast of the present invention and original technology:
| Project | Original technology | The present invention | Odds ratio |
| Yield rate | 90% | 93% | Improve 3% |
| Top-quality product rate | 65% | 70% | Improve 5% |
| The solution base number | 80～160g/L | 40～60 g/L | Reduce by 100% |
| Solution temperature | 60～65℃ | 55～60℃ | Reduce by 5 ℃ |
| The aluminium amount of degrading | 3～8 g/m 2 | 7～20 g/m 2 | Improve 100% |
Claims (1)
1. one kind is used for the degreasing method that the serialization of PS version is produced; This degreasing method uses a kind of solution tank; Described solution tank is divided into two independent first solution tanks (1), second solution tank (2) through fixed dam (3) and shifting board (5); One side of second solution tank (2) is provided with the solution refluxing opening, and opposite side is provided with drain (7), and a side of first solution tank (1) is provided with solution to upper cycling mouth (6); The height of described fixed dam (3) is lower than the cell wall height of first solution tank (1), second solution tank (2), and it is characterized in that: the step of described degreasing method is following:
(1), preparation degreasing fluid: prepare 40 ~ 60 parts in sodium hydroxide, 20 ~ 30 parts in SODIUMNITRATE, 0.2 ~ 0.4 part of complexed surfactant, the solution that configures places first solution tank (1) to be heated to 55 ~ 66 ℃, uses in order to production line;
(2), degreasing condition and technology: the solution that configures is transported in the production line oil removing process case to upper cycling mouth (6) through solution with pump; Aluminium plate base is after oil removing segment process case back warp shower sprays 10 ~ 20 seconds; Through the neutralization washing; Get into the electrolysis process processing section, skim soln in use will be added according to the regular trace of service condition;
(3), the circular treatment of degreasing fluid: the solution refluxing opening of the degreasing fluid after step (2) use through second solution tank (2) is discharged in second solution tank (2); Degreasing fluid process in second solution tank (2) stops and deposition; Make the impurity of handling be separated to the bottom of second solution tank (2) through natural sedimentation with the muddy throw out; The degreasing fluid of the cleaning after the separation covers fixed dam (3) and shifting board (5) flow in first solution tank (1); Because the solution of first solution tank (1) does not directly receive reflux solution; So the solution of first solution tank (1) can be not contaminated; Its feed liquor all relies on second solution tank (2) to cover fixed dam (3) and shifting board (5) inflow through the solution of post precipitation, so be in clean state all the time, degreasing fluid recycles to the treatment trough that upper cycling mouth (6) gets into production line again through solution.
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| CN2010102915469A CN101962780B (en) | 2010-09-26 | 2010-09-26 | Solution tank for PS-version continuous production and degreasing method thereof |
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| CN2010102915469A CN101962780B (en) | 2010-09-26 | 2010-09-26 | Solution tank for PS-version continuous production and degreasing method thereof |
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| CN101962780B true CN101962780B (en) | 2012-06-27 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1558964A (en) * | 2001-07-25 | 2004-12-29 | ������������ʽ���� | Foreign matter removing mechanism, fluid flow processing equipment, and foreign matter removing method |
| CN201148468Y (en) * | 2008-01-09 | 2008-11-12 | 河南恒星科技股份有限公司 | Wire rod electrolytic acid cleaning slot and its apparatus |
| CN101709476A (en) * | 2009-10-30 | 2010-05-19 | 南南铝业股份有限公司 | Production method and equipment for deburring aluminum workpieces by continuously alkali washing |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1558964A (en) * | 2001-07-25 | 2004-12-29 | ������������ʽ���� | Foreign matter removing mechanism, fluid flow processing equipment, and foreign matter removing method |
| CN201148468Y (en) * | 2008-01-09 | 2008-11-12 | 河南恒星科技股份有限公司 | Wire rod electrolytic acid cleaning slot and its apparatus |
| CN101709476A (en) * | 2009-10-30 | 2010-05-19 | 南南铝业股份有限公司 | Production method and equipment for deburring aluminum workpieces by continuously alkali washing |
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