CN102534739A - Filtering device and filtering method - Google Patents
Filtering device and filtering method Download PDFInfo
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- CN102534739A CN102534739A CN2010106242345A CN201010624234A CN102534739A CN 102534739 A CN102534739 A CN 102534739A CN 2010106242345 A CN2010106242345 A CN 2010106242345A CN 201010624234 A CN201010624234 A CN 201010624234A CN 102534739 A CN102534739 A CN 102534739A
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- 238000001914 filtration Methods 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 32
- 238000003756 stirring Methods 0.000 claims description 11
- 238000009826 distribution Methods 0.000 claims description 7
- 238000013519 translation Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- 239000000243 solution Substances 0.000 description 126
- 239000002184 metal Substances 0.000 description 20
- 229910052751 metal Inorganic materials 0.000 description 20
- 239000003814 drug Substances 0.000 description 18
- -1 metals ion Chemical class 0.000 description 17
- 238000005516 engineering process Methods 0.000 description 8
- 230000014616 translation Effects 0.000 description 5
- 239000013043 chemical agent Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000007747 plating Methods 0.000 description 4
- 239000012089 stop solution Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 238000001465 metallisation Methods 0.000 description 2
- 108010022579 ATP dependent 26S protease Proteins 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The invention discloses a filtering device and a filtering method and relates to the filtering technical field, for reducing the production cost. The filtering device comprises a main groove, a liquid inlet pipe, a filter, a liquid outlet pipe, wherein the main groove is used for containing solution, the liquid inlet pipe is provided with a first inlet and a first outlet, the first inlet is arranged below the liquid level of the solution in the main groove, the first outlet is connected to the filter, the filter is used for filtering the solution, the liquid outlet pipe is provided with a second inlet and at least one second outlet, the second inlet is connected to the filter, the at least one second outlet is positioned in the main slot and faces to the bottom of the main slot obliquely or vertically, at least the first inlet in the first inlet, the first outlet, the second inlet and the second outlet is connected with a conduit, the surface of the conduit is provided with a plurality of through holes, and the plurality of through holes face to at least two different directions. The filtering device and the filtering method can be used for filtering.
Description
Technical field
The present invention relates to filtration art, relate in particular to a kind of filtration unit and filter method.
Background technology
In the production, often need to use chemical agent and product is handled in modern times by means of chemical reaction.For example in wiring board manufacturing field, need to use chemical agent to carry out technologies such as electroless copper plating, Metal plating.In these technological processs, have good and stable chemically reactive in order to guarantee employed chemical agent, generally need to use filtration unit that chemical agent is carried out circulating filtration.
The NiPdAu technology that need use when making slim extraordinary circuit card is below explained existing filtration unit.As shown in Figure 1, in the filtration unit of NiPdAu technology, have the major trough 1 that the chemical reaction place is provided; Be provided with secondary groove 2 in the major trough 1; NiPdAu liquid medicine can enter into secondary groove 2 when the NiPdAu liquid medicine liquid level in the major trough 1 was higher than secondary groove 2, was provided with liquid-inlet pipe 3 in the secondary groove 2, and liquid-inlet pipe 3 is connected with pump 4; Pump 4 is extracted into the NiPdAu liquid medicine in the secondary groove 2 in the strainer 5 through liquid-inlet pipe 3, and NiPdAu liquid medicine turns back in the major trough 1 via drain pipe 6 after filtering through strainer 5 again.
But in above-mentioned NiPdAu liquid medicine circulating filtration process; As shown in Figure 2; Because NiPdAu liquid medicine all is inhaled into the liquid-inlet pipe 3 from same direction; On other directions, form the circulation dead angle so easily, the metals ion in this place, circulation dead angle NiPdAu liquid medicine is easy to separate out, thereby forms the solid metal deposition.Separate out and form solid metal when deposition metals ion occurring, will have a strong impact on the chemically reactive of NiPdAu liquid medicine, and will cause the NiPdAu liquid medicine in the whole major trough not reach request for utilization, and then cause stopping production and change.At this moment just need carry out inverted engine, promptly all pour out the liquid medicine in the major trough, also will use nitric acid with the solid metal of separating out in major trough dissolving and clear up and to reuse this major trough then.After cleaning, can open the new NiPdAu liquid medicine of a cylinder again, it is aging to carry out liquid medicine that still this new NiPdAu liquid medicine need be placed for some time, just can be used for after liquid medicine is aged to a certain degree producing.
Hence one can see that, in case the phenomenon that metals ion is separated out appears in the said major trough, the liquid medicine that then will stop production and more renew, and the overlong time of liquid medicine replacing, and these have all caused the raising of production cost.
Summary of the invention
Embodiments of the invention provide a kind of filtration unit and filter method, to reduce production costs.For achieving the above object, embodiments of the invention adopt following technical scheme:
Embodiments of the invention provide a kind of filtration unit, comprising:
Major trough, it is used to hold solution;
Liquid-inlet pipe, it has first inlet and first outlet, and said first inlet is located at the liquid level below of solution in the said major trough, and said first outlet is connected to strainer;
Strainer, it is used for said solution is filtered;
Drain pipe, it has second inlet and at least one second outlet, and said second inlet is connected to said strainer, and said at least one second outlet is positioned at said major trough and inclination or vertically towards the bottom of said major trough;
Said at least first inlet in said first inlet, first outlet, second inlet, second outlet is connected with conduit, and the surface of said conduit is provided with a plurality of through holes, and said a plurality of through holes are towards at least two different directions.
Embodiments of the invention also provide a kind of filter method, comprising:
Solution in the major trough is drained in the strainer through liquid-inlet pipe;
Through strainer said solution is filtered;
Solution after filtering is drained in the major trough through drain pipe;
The ingress of said liquid-inlet pipe and exit, and the ingress and exit of said drain pipe in, make said solution suck said liquid-inlet pipe at least from both direction at least in the ingress of said liquid-inlet pipe.
Filtration unit that the embodiment of the invention provides and filter method; Because a plurality of through holes that are provided with on the surface of said conduit are towards at least two different directions; Make solution to be inhaled into the liquid-inlet pipe, solution no longer is inhaled into the said liquid-inlet pipe from same direction, thereby reduced the risk that forms the circulation dead angle from both direction at least; And reduced the possibility that causes metals ion to separate out, and and then reduced production cost.
Description of drawings
Fig. 1 is the synoptic diagram of prior art filtration unit;
Fig. 2 is the enlarged view of I-I part among Fig. 1;
Fig. 3 is the synoptic diagram of embodiment of the invention filtration unit;
Fig. 4 is the enlarged view of II-II part among Fig. 3.
Embodiment
The present invention provides a kind of filtration unit, comprising:
Major trough, it is used to hold solution;
Liquid-inlet pipe, it has first inlet and first outlet, and said first inlet is located at the liquid level below of solution in the said major trough, and said first outlet is connected to strainer;
Strainer, it is used for said solution is filtered;
Drain pipe, it has second inlet and at least one second outlet, and said second inlet is connected to said strainer, and said at least one second outlet is positioned at said major trough and inclination or vertically towards the bottom of said major trough;
It is characterized in that said at least first inlet in said first inlet, first outlet, second inlet, second outlet is connected with conduit, the surface of said conduit is provided with a plurality of through holes, and said a plurality of through holes are towards at least two different directions.
In a preferred embodiment, said first inlet and said second outlet are connected to conduit.And in various embodiments of the present invention, conduit can be used as individual components and is connected with corresponding inlet or outlet, also can become one with corresponding inlet or outlet.
Preferably, in various embodiments of the present invention, said a plurality of through holes towards in the direction scope of 360 degree, distributing, preferably in the direction scope of 360 degree, distribute equably.
Preferably, in various embodiments of the present invention, the sectional area of the total area of said a plurality of through holes and said first inlet adapts, and for example can equate.In a preferred embodiment, the total area of said a plurality of through holes can be regulated to adapt to actual needs based on the sectional area of said first inlet.
Preferably, in various embodiments of the present invention, be provided with secondary groove in the said major trough, said solution entered into said secondary groove when the liquid level of solution in the said major trough was higher than the sidewall of said secondary groove, and said conduit is located in the said secondary groove, and
Around the said conduit and the distance between the inwall of said secondary groove be 10～40 millimeters, be preferably 10～30 millimeters, more preferably be 20 millimeters;
Distance between the interior diapire of the bottom of said conduit and said secondary groove is 10～40 millimeters, be preferably 10～30 millimeters, more preferably be 20 millimeters.
Preferably, in various embodiments of the present invention,
Near the distribution density of the said through hole of said first access point less than distribution density away from the said through hole of said first access point; And/or,
Near the size of the said through hole of said first access point less than size away from the said through hole of said first access point.
Preferably, in various embodiments of the present invention,
Said through hole be shaped as circle, ellipse or Polygons; And/or
The cross-sectional shape of said conduit is circle, ellipse or Polygons.
Preferably, in various embodiments of the present invention, said conduit have can make said conduit translation and/or rotation structure in order to stir said solution in real time or periodically.Like this owing to solution is made the possibility that the dead angle metal deposition occurs reduce by stirring.
Preferably, in various embodiments of the present invention, be provided with in the said liquid-inlet pipe and be used to control the suction condition of said solution and/or the valve of suction velocity.
The present invention provides a kind of filter method, comprising:
Solution in the major trough is drained in the strainer through liquid-inlet pipe;
Through strainer said solution is filtered;
Solution after filtering is drained in the major trough through drain pipe;
It is characterized in that, the ingress of said liquid-inlet pipe and exit, and the ingress and exit of said drain pipe in, make said solution suck said liquid-inlet pipe at least from both direction at least in the ingress of said liquid-inlet pipe.
Preferably, in various embodiments of the present invention, make said solution suck said liquid-inlet pipe and comprise from both direction at least:
Make said solution sucked said liquid-inlet pipe from both direction at least under the state that stirs.
Preferably, in various embodiments of the present invention, make said solution suck said liquid-inlet pipe and also comprise from both direction at least:
Make said solution under predetermined or adjustable suction velocity, sucked said liquid-inlet pipe from both direction at least.
Below in conjunction with accompanying drawing embodiment of the invention filtration unit and filter method are described in detail.Should be clear and definite, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making all other embodiment that obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Filtration unit in the embodiment of the invention comprises: major trough, and it is used to hold solution; Liquid-inlet pipe, it has first inlet and first outlet, and said first inlet is located at the liquid level below of solution in the said major trough, and said first outlet is connected to strainer; Strainer, it is used for said solution is filtered; Drain pipe, it has second inlet and at least one second outlet, and said second inlet is connected to said strainer, and said at least one second outlet is positioned at said major trough and inclination or vertically towards the bottom of said major trough; Said at least first inlet in said first inlet, first outlet, second inlet, second outlet is connected with conduit, and the side of said conduit is provided with a plurality of through holes, and said a plurality of through holes are towards at least two different directions.
The filtration unit that the embodiment of the invention provides; Because a plurality of through holes that are provided with on the side of said conduit are towards at least two different directions; Make solution to be inhaled into the liquid-inlet pipe, solution no longer is inhaled into the said liquid-inlet pipe from same direction, thereby reduced the risk that forms the circulation dead angle from both direction at least; And reduced the possibility that causes metals ion to separate out, and and then reduced production cost.
A specific embodiment of filtration unit of the present invention is described below in conjunction with accompanying drawing.
As shown in Figure 3, be a specific embodiment of filtration unit of the present invention.In the present embodiment, said filtration unit comprises:
Liquid-inlet pipe 3, it has first inlet and first outlet, and said first inlet is located at the liquid level below of solution in the secondary groove 2; Said first outlet is connected to pump 4, and pump 4 is drained into strainer 5 with the solution in the secondary groove 2 through liquid-inlet pipe 3, when secondary groove 2 is not set in the major trough 1; Can said first inlet be located at the liquid level below of solution in the major trough 1; Here after between secondary groove 2 and strainer 5, pump 4 being set, can better the solution in the secondary groove 2 being drained in the strainer 5, but being not limited thereto; In other embodiments of the invention pump 4 can be set, but the solution in the secondary groove 2 be drained in the strainer 5 through other modes such as actions of gravity;
Said in the embodiment shown in fig. 3 first inlet is connected with the conduit 7 of sealing, and as shown in Figure 4, the surface of conduit 7 is provided with a plurality of through holes 8; These a plurality of through holes 8 are towards at least two different directions; Solution is inhaled into the liquid-inlet pipe 3 from both direction at least, thereby solution no longer is inhaled into the liquid-inlet pipe 3 from same direction, thereby reduce the risk that forms the circulation dead angle; And reduced the possibility that causes metals ion to separate out, and and then reduced production cost.
Need to prove that the solution that holds in the major trough 1 can comprise any medicament that uses in the industrial production.For example can be included in the solution of electroless copper plating solution, electroplating solution and the use of NiPdAu technology used in the production process of wiring board etc.Preferably, the solution that holds in the major trough 1 can be the solution of high density, especially for making the NiPdAu solution that uses in the required NiPdAu technology of slim special type of track plate etc.
Also need to prove; In various embodiments of the present invention; The solution after filtering not only conduit 7 can be set at the first access point of liquid-inlet pipe 3, this conduit 7 can also be set in second exit of drain pipe 6, so that can be discharged into the major trough 1 from both direction at least; Avoid forming the circulation dead angle, thereby cause metals ion to separate out in second exit of drain pipe 6.In addition, even can also above-mentioned conduit 7 be set, form the circulation dead angle to avoid the elswhere outside major trough 1, thereby cause metals ion to separate out in first exit of liquid-inlet pipe 3 or second ingress of drain pipe 6.In the explanation below main reference is described at the conduit 7 of the first access point setting of liquid-inlet pipe 3, can be as for the 26S Proteasome Structure and Function of the conduit 7 that is provided with in other positions with reference to learning.Preferably, can only conduit 7 be set in first exit of the liquid-inlet pipe that is positioned at major trough 13 and/or second exit of drain pipe 6.
Be located at a plurality of through holes 8 on the conduit 7 towards in the direction scope of 360 degree, distributing; Generally speaking; When a plurality of scopes of 8 passed through when wider towards distributing; Said solution just can be inhaled into the liquid-inlet pipe 3 from more directions, thereby can reduce the risk that causes the circulation dead angle better, therefore preferable implementation be make a plurality of through holes 8 towards in the direction scope of 360 degree, distributing.Preferably; A plurality of through holes 8 are distributed in the direction scope of 360 degree equably; Can improve the homogeneity that liquid-inlet pipe 3 sucks the direction of solution like this; Be unlikely to too much from the solution of some direction suctions, and very few from the solution of another direction suction, come further to reduce to cause the risk at circulation dead angle with this.
After the first access point of liquid-inlet pipe 3 is provided with conduit 7; Solution in the secondary groove 2 at first is inhaled in the liquid-inlet pipe 3 through a plurality of through holes 8 on the conduit 7; And then be discharged in the strainer 5 through liquid-inlet pipe 3; Therefore roughly the same in order to make that flow that the solution that enters into liquid-inlet pipe 3 after the conduit 7 is set enters into the flow of solution of liquid-inlet pipe 3 when conduit 7 is not set, the total area of a plurality of through holes 8 and the sectional area that first of liquid-inlet pipe 3 enters the mouth are adapted.
Description by the front is known, in major trough 1, is provided with secondary groove 2, and said solution entered into secondary groove 2 when the liquid level of solution in the major trough 1 was higher than the sidewall of secondary groove 2, and first inlet of conduit 7 and liquid-inlet pipe 3 is located in the secondary groove 2.Secondary groove 2 is used to collect major trough 1 interior solution near the middle and upper part; Generally speaking in filtration unit, can the solution after filtering through strainer 5 be drained into the bottom of major trough 1 through drain pipe 6; The chemically reactive of the solution of major trough 1 bottom is stronger like this; Can satisfy processing requirement; But be positioned at major trough 1 top solution chemically reactive then a little less than, need this a part of solution be drained into and filter with despumation in the strainer 5 and strengthen chemically reactive, therefore generally can secondary groove 2 be arranged on middle and upper part in the major trough 1 is positioned at major trough 1 middle and upper part with collection the more weak solution of chemically reactive.
For example, the size of secondary groove 2 can be provided with according to the filtration velocity and the flow of strainer 5.For example, when the filtration velocity of strainer 5 and flow were big, the size of secondary groove 2 was also bigger; When the filtration velocity of strainer 5 and flow hour, the size of secondary groove 2 is also less.
The size of conduit 7 then can be provided with according to the size of secondary groove 2.For example when conduit 7 being arranged in the secondary groove 2, can make conduit 7 around and the distance between the inwall of secondary groove 2 be 10～40 millimeters, be preferably 10～30 millimeters, more preferably be 20 millimeters.Around the conduit 7 and the distance between the inwall of secondary groove 2 can be provided with according to flow velocity that is inhaled into the solution in the liquid-inlet pipe 3 and/or flow; For example; If it is bigger to be inhaled into the flow velocity and/or the flow of the solution in the liquid-inlet pipe 3; Then can with around the conduit 7 and the distance between the inwall of secondary groove 2 be provided with more greatly, if it is less to be inhaled into the flow velocity and/or the flow of solution of liquid-inlet pipe 3, then can with around the conduit 7 and the distance between the inwall of secondary groove 2 be provided with smallerly.On left and right directions shown in Figure 4, length that can conduit 7 was set to secondary groove 2 and deducted the resulting difference of distance between conduit 7 and secondary groove 2 left and right sides inwalls in the length on this direction referring to shown in Figure 4 this moment; On the direction of vertical paper shown in Figure 4; Width that can conduit 7 is set to secondary groove 2 and deducts the resulting difference of distance between conduit 7 and both sides, the secondary groove 2 front and back inwall at the width on this direction; If conduit 7 is circular; Then the width value of conduit 7 is the diameter value of conduit 7, if conduit 7 is oval, then the width value of conduit 7 can be the major axis value or the minor axis value of conduit 7; If conduit 7 is a Polygons, then the width value of conduit 7 can connect the diameter value of the circle or the inside/outside circle of contact for the inside/outside of Polygons conduit 7.But be not limited thereto, the direction of vertical paper that also can be shown in Figure 4 is set to the length direction of conduit 7, and left and right directions shown in Figure 4 is set to the width of conduit 7.
In addition, also to guarantee the bottom certain altitude of the secondary groove 2 of conduit 7 distance, for example can the distance between the interior diapire of the bottom of conduit 7 and secondary groove 2 be made as 10～40 millimeters, preferably be made as 10～30 millimeters, more preferably be made as 20 millimeters.Distance between the interior diapire of the bottom of conduit 7 and secondary groove 2 also can be provided with according to flow velocity that is inhaled into the solution in the liquid-inlet pipe 3 and/or flow; For example; If it is bigger to be inhaled into the flow velocity and/or the flow of the solution in the liquid-inlet pipe 3; Then can be provided with the distance between the interior diapire of the bottom of conduit 7 and secondary groove 2 more greatly,, then can be provided with the distance between the interior diapire of the bottom of conduit 7 and secondary groove 2 smaller if it is less to be inhaled into the flow velocity and/or the flow of solution of liquid-inlet pipe 3.。
When a plurality of through hole 8 is set on the surface of conduit 7; Can be set near the distribution density of a plurality of through holes 8 of the first access point of liquid-inlet pipe 3 less than distribution density away from a plurality of through holes 8 of the first access point of liquid-inlet pipe 3; Owing to suck more solution easily from here to the suction of solution is strong near the first access point of liquid-inlet pipe 3; Suck less solution away from the first access point of liquid-inlet pipe 3 easily from here to the suction of solution is more weak; Therefore such setting can be carried out certain restriction to the solution soakage near the first access point of liquid-inlet pipe 3, and the solution soakage away from the first access point of liquid-inlet pipe 3 is carried out certain compensation.Similarly; Can be set near the size of a plurality of through holes 8 of the first access point of liquid-inlet pipe 3 less than size away from a plurality of through holes 8 of the first access point of liquid-inlet pipe 3; So also can reach the solution soakage near the first access point of liquid-inlet pipe 3 is carried out certain restriction, and the effect to carrying out certain compensation away from the solution soakage of the first access point of liquid-inlet pipe 3.It is noted that above-mentionedly can be used in combination, also can use separately the distribution density of a plurality of through holes 8 and the set-up mode of size.
In various embodiments of the present invention, shape that can through hole 8 is set to circle, ellipse or Polygons etc.Similarly, cross-sectional shape that can conduit 7 is set to circle, ellipse or Polygons etc.Shape as for two closedends of conduit 7 then can it be set to planar shaped or curved surface shaped, when being set to curved surface shaped, can it be set to arc surface shape etc.
Preferably, can make conduit 7 have can the time these conduit 7 translations and/or rotation structure in order to stir said solution in real time or periodically.For example, can make conduit 7 on above-below direction shown in Figure 4, do back and forth reciprocal translational motion, thereby stir the said solution in the secondary groove 2, avoid the metals ion of the first access point of liquid-inlet pipe 3 to separate out owing to static.Again for example, can make conduit 7 do counterclockwise or clockwise rotatablely moving in position shown in Figure 4, stir the said solution in the secondary groove 2, avoid the metals ion of the first access point of liquid-inlet pipe 3 to separate out owing to static with this.Can in filtering process, make conduit 7 keep translation or rotation, to stir said solution in real time always; Perhaps can in filtering process, just make conduit 7 translations or rotation at set intervals, and make this translation or rotation keep the regular hour, periodically to stir said solution.
Preferably, can on the pipeline of liquid-inlet pipe 3, valve be set, this valve can be used to control the suction condition and/or the suction velocity of said solution.Wherein said suction condition refer to permission with solution be drawn into conduit 7 and and then enter into liquid-inlet pipe 3, perhaps stop solution to be inhaled in the conduit 7, for example this can realize through opening or closing said valve.Said suction velocity refers to solution and is inhaled into the speed in the conduit 7.Can in liquid-inlet pipe 3, switch-valve be set, open this switch-valve, can make solution be drawn into conduit 7 and and then enter into liquid-inlet pipe 3, close this switch-valve, can stop solution to be inhaled in the conduit 7.Preferably, one or more throttling valve can be set on the pipeline of liquid-inlet pipe, this shut off valve not only can be controlled the suction condition (opening or closing) of solution, and can control suction velocity through the solution flow that controlling flow is crossed this throttling valve.
Can learn in sum; The a plurality of through holes 8 that are provided with on the surface through conduit 7; Solution can be inhaled into the liquid-inlet pipe 3 from both direction at least, so just can make solution no longer be inhaled into liquid-inlet pipe 3, thereby reduce the risk that forms the circulation dead angle from same direction; And reduced the possibility that causes metals ion to separate out, and and then reduced production cost.And what need further specify is; After the first access point of liquid-inlet pipe 3 is provided with conduit 7; Be not only can improve the solution circulated effect at the first access point of liquid-inlet pipe 3; Avoid occurring the circulation dead angle, but can impel whole filtering system can carry out good solution circulated, and prevent separating out and depositing of metals ion with this through the circulating effect after the improvement of the first access point of liquid-inlet pipe 3.
In addition, embodiments of the invention also provide a kind of filter method.Said filter method comprises:
Step 11 is drained into the solution in the major trough in the strainer through liquid-inlet pipe;
Step 12 is filtered said solution through strainer;
Step 13 is drained into the solution after filtering in the major trough through drain pipe;
When the solution after will filtering is drained in the major trough through drain pipe when being drained in strainer through liquid-inlet pipe the solution in the major trough and in the step 13 in the step 11; Can the ingress of said liquid-inlet pipe and exit, and the ingress and exit of said drain pipe in, make said solution suck said liquid-inlet pipe at least from both direction at least in the ingress of said liquid-inlet pipe.
The filter method that the embodiment of the invention provides; Can make solution be inhaled into the liquid-inlet pipe from both direction at least; Solution no longer is inhaled into the said liquid-inlet pipe from same direction; Thereby reduced the risk that forms the circulation dead angle, and reduced the possibility that causes metals ion to separate out, and and then reduced production cost.
Preferably; In the step 11 when being drained in strainer through liquid-inlet pipe the solution in the major trough; Make solution suck said liquid-inlet pipe can be: can make said solution under the immobilized state, suck said liquid-inlet pipe in the ingress of said liquid-inlet pipe from both direction at least from both direction at least; Can avoid metals ion to separate out this moment by means of making solution improve circulating effect from the mode that at least two different directions are inhaled into the liquid-inlet pipe.More preferably, can make said solution in the ingress of said liquid-inlet pipe, avoid metals ion to separate out owing to static being sucked said liquid-inlet pipe from both direction at least under the state that stirs.
Preferably, make solution suck said liquid-inlet pipe can also to be: make said solution under predetermined or adjustable suction velocity, sucked said liquid-inlet pipe from both direction at least from both direction at least.Can on the pipeline of liquid-inlet pipe, valve be set, this valve can be used to control the suction condition and/or the suction velocity of said solution for this reason.Wherein said suction condition refer to permission with solution be drawn into conduit and and then enter into liquid-inlet pipe, perhaps stop solution to be inhaled in the conduit, for example this can realize through opening or closing said valve.Said suction velocity refers to solution and is inhaled into the speed in the conduit.Can switch-valve be set in liquid-inlet pipe, open this switch-valve, can make solution be drawn into conduit and and then enter into liquid-inlet pipe, close this switch-valve, can stop solution to be inhaled in the conduit.Preferably, one or more throttling valve can be set on the pipeline of liquid-inlet pipe, this shut off valve not only can be controlled the suction condition (opening or closing) of solution, and can control suction velocity through the solution flow that controlling flow is crossed this throttling valve.
Need to prove that among each embodiment of filter method of the present invention, the solution that holds in the said major trough can comprise any medicament that uses in the industrial production.For example can be included in the solution of electroless copper plating solution, electroplating solution and the use of NiPdAu technology used in the production process of wiring board etc.Preferably, the solution that holds in the major trough can be the solution of high density, especially for making the NiPdAu solution that uses in the required NiPdAu technology of slim special type of track plate etc.
Also need to prove; In each embodiment of filter method of the present invention; Not only can make said solution suck said liquid-inlet pipe in the ingress of said liquid-inlet pipe from both direction at least; Solution after can also making filtration in the exit of said drain pipe can be discharged into the major trough from both direction at least, avoids forming the circulation dead angle in the exit of drain pipe, thereby causes metals ion to separate out.In addition, in addition can also be in the exit of liquid-inlet pipe or the ingress of drain pipe make said solution be inhaled into or get rid of from both direction at least, form the circulation dead angle to avoid the elswhere outside major trough, thereby cause metals ion to separate out.Preferably, said solution is inhaled into from both direction at least, and/or, said solution is discharged from from both direction at least.
In various embodiments of the present invention, can realize this filter method by means of each filtration unit among the above-mentioned filtration unit embodiment.Perhaps also can realize this filter method by other filtration units.
The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technician who is familiar with the present technique field is in the technical scope that the present invention discloses; Can expect easily changing or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of said claim.
Claims (11)
1. filtration unit comprises:
Major trough, it is used to hold solution;
Liquid-inlet pipe, it has first inlet and first outlet, and said first inlet is located at the liquid level below of solution in the said major trough, and said first outlet is connected to strainer;
Strainer, it is used for said solution is filtered;
Drain pipe, it has second inlet and at least one second outlet, and said second inlet is connected to said strainer, and said at least one second outlet is positioned at said major trough and inclination or vertically towards the bottom of said major trough;
It is characterized in that said at least first inlet in said first inlet, first outlet, second inlet, second outlet is connected with conduit, the surface of said conduit is provided with a plurality of through holes, and said a plurality of through holes are towards at least two different directions.
2. filtration unit according to claim 1 is characterized in that, said a plurality of through holes towards in the direction scope of 360 degree, distributing, preferably in the direction scope of 360 degree, distribute equably.
3. filtration unit according to claim 1 and 2 is characterized in that, the sectional area of the total area of said a plurality of through holes and said first inlet adapts.
4. according to each described filtration unit in the aforementioned claim; It is characterized in that, be provided with secondary groove in the said major trough, said solution entered into said secondary groove when the liquid level of solution in the said major trough was higher than the sidewall of said secondary groove; Said conduit is located in the said secondary groove, and
Around the said conduit and the distance between the inwall of said secondary groove be 10～40 millimeters, be preferably 10～30 millimeters, more preferably be 20 millimeters;
Distance between the interior diapire of the bottom of said conduit and said secondary groove is 10～40 millimeters, be preferably 10～30 millimeters, more preferably be 20 millimeters.
5. according to each described filtration unit in the aforementioned claim, it is characterized in that,
Near the distribution density of the said through hole of said first access point less than distribution density away from the said through hole of said first access point; And/or,
Near the size of the said through hole of said first access point less than size away from the said through hole of said first access point.
6. according to each described filtration unit in the aforementioned claim, it is characterized in that,
Said through hole be shaped as circle, ellipse or Polygons; And/or
The cross-sectional shape of said conduit is circle, ellipse or Polygons.
7. according to each described filtration unit in the aforementioned claim, it is characterized in that, said conduit have can make said conduit translation and/or rotation structure in order to stir said solution in real time or periodically.
8. according to each described filtration unit in the aforementioned claim, it is characterized in that, be provided with in the said liquid-inlet pipe and be used to control the suction condition of said solution and/or the valve of suction velocity.
9. filter method comprises:
Solution in the major trough is drained in the strainer through liquid-inlet pipe;
Through strainer said solution is filtered;
Solution after filtering is drained in the major trough through drain pipe;
It is characterized in that, the ingress of said liquid-inlet pipe and exit, and the ingress and exit of said drain pipe in, make said solution suck said liquid-inlet pipe at least from both direction at least in the ingress of said liquid-inlet pipe.
10. filter method according to claim 9 is characterized in that, makes said solution suck said liquid-inlet pipe from both direction at least and comprises:
Make said solution sucked said liquid-inlet pipe from both direction at least under the state that stirs.
11. according to claim 9 or 10 described filter methods, it is characterized in that, make said solution suck said liquid-inlet pipe and also comprise from both direction at least:
Make said solution under predetermined or adjustable suction velocity, sucked said liquid-inlet pipe from both direction at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010624234.5A CN102534739B (en) | 2010-12-31 | 2010-12-31 | Filtering device and filtering method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010624234.5A CN102534739B (en) | 2010-12-31 | 2010-12-31 | Filtering device and filtering method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102534739A true CN102534739A (en) | 2012-07-04 |
| CN102534739B CN102534739B (en) | 2014-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010624234.5A Expired - Fee Related CN102534739B (en) | 2010-12-31 | 2010-12-31 | Filtering device and filtering method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107653482A (en) * | 2017-11-15 | 2018-02-02 | 江门市信通通信工程有限公司 | A kind of filtration system of Novel electric plating solution |
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| CN2174482Y (en) * | 1993-09-25 | 1994-08-17 | 杭州桐庐电铸技术研究所 | Electromoulding tank |
| WO2000023639A1 (en) * | 1998-10-21 | 2000-04-27 | Nicasio Paulino Mora Vallejo | Installation for the collection of liquid residues applicable to the treatment of parts by electrolytic bath |
| CN1314503A (en) * | 2000-03-21 | 2001-09-26 | 亚洲电镀器材有限公司 | Mixing device |
| JP2001321617A (en) * | 2000-05-18 | 2001-11-20 | Mitsui Mining & Smelting Co Ltd | Method for filtrating copper electrolyte |
| US6875322B1 (en) * | 2003-01-15 | 2005-04-05 | Lam Research Corporation | Electrochemical assisted CMP |
| CN2871561Y (en) * | 2006-03-13 | 2007-02-21 | 王红 | Continuously-circulating filter for assembled electroplating production |
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2010
- 2010-12-31 CN CN201010624234.5A patent/CN102534739B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2174482Y (en) * | 1993-09-25 | 1994-08-17 | 杭州桐庐电铸技术研究所 | Electromoulding tank |
| WO2000023639A1 (en) * | 1998-10-21 | 2000-04-27 | Nicasio Paulino Mora Vallejo | Installation for the collection of liquid residues applicable to the treatment of parts by electrolytic bath |
| CN1314503A (en) * | 2000-03-21 | 2001-09-26 | 亚洲电镀器材有限公司 | Mixing device |
| JP2001321617A (en) * | 2000-05-18 | 2001-11-20 | Mitsui Mining & Smelting Co Ltd | Method for filtrating copper electrolyte |
| US6875322B1 (en) * | 2003-01-15 | 2005-04-05 | Lam Research Corporation | Electrochemical assisted CMP |
| CN2871561Y (en) * | 2006-03-13 | 2007-02-21 | 王红 | Continuously-circulating filter for assembled electroplating production |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107653482A (en) * | 2017-11-15 | 2018-02-02 | 江门市信通通信工程有限公司 | A kind of filtration system of Novel electric plating solution |
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| Publication number | Publication date |
|---|---|
| CN102534739B (en) | 2014-10-15 |
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Effective date of registration: 20220621 Address after: 3007, Hengqin international financial center building, No. 58, Huajin street, Hengqin new area, Zhuhai, Guangdong 519031 Patentee after: New founder holdings development Co.,Ltd. Address before: 100871, Beijing, Haidian District Cheng Fu Road 298, founder building, 5 floor Patentee before: PEKING UNIVERSITY FOUNDER GROUP Co.,Ltd. |
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