CN102534739B - Filtering device and filtering method - Google Patents
Filtering device and filtering method Download PDFInfo
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- CN102534739B CN102534739B CN201010624234.5A CN201010624234A CN102534739B CN 102534739 B CN102534739 B CN 102534739B CN 201010624234 A CN201010624234 A CN 201010624234A CN 102534739 B CN102534739 B CN 102534739B
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- 238000001914 filtration Methods 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 31
- 238000003756 stirring Methods 0.000 claims description 8
- 238000009826 distribution Methods 0.000 claims description 7
- 238000013519 translation Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 17
- 239000000243 solution Substances 0.000 description 128
- 239000003814 drug Substances 0.000 description 18
- 229910021645 metal ion Inorganic materials 0.000 description 17
- 230000014616 translation Effects 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000013043 chemical agent Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000007747 plating Methods 0.000 description 4
- 230000003068 static effect Effects 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
- 238000001465 metallisation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000006243 chemical reaction 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
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000012089 stop solution Substances 0.000 description 2
- 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
- 238000004140 cleaning Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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 modern manufacturing industry, often need to use chemical agent and by means of chemical reaction, product be processed.For example, in wiring board manufacture field, need to use chemical agent to carry out the techniques such as electroless copper plating, Metal plating.In these technological processs, in order to guarantee that used chemical agent has good and stable chemically reactive, generally need to use filtration unit to carry out circulating filtration to chemical agent.
Below when making slim special circuit board need to NiPdAu technique existing filtration unit is described.As shown in Figure 1, in the filtration unit of NiPdAu technique, have the major trough in chemical reaction place 1 is provided, in major trough 1, be provided with secondary groove 2, NiPdAu liquid medicine liquid level in major trough 1 during higher than secondary groove 2 NiPdAu liquid medicine can enter into secondary groove 2, in secondary groove 2, be provided with liquid-inlet pipe 3, liquid-inlet pipe 3 is connected with pump 4, pump 4 is extracted into the NiPdAu liquid medicine in secondary groove 2 in strainer 5 by liquid-inlet pipe 3, and NiPdAu liquid medicine turns back in major trough 1 via drain pipe 6 after filtering by strainer 5 again.
But in above-mentioned NiPdAu liquid medicine circulating filtration process, as shown in Figure 2, because NiPdAu liquid medicine is all inhaled into liquid-inlet pipe 3 from same direction, easily form so in the other direction circulation dead angle, metal ion in this place, circulation dead angle NiPdAu liquid medicine is easy to separate out, thereby forms solid metal deposition.When occurring that solid metal deposition is separated out and formed to metal ion, will have a strong impact on the chemically reactive of NiPdAu liquid medicine, and will cause the NiPdAu liquid medicine in whole major trough not reach service requirements, and then cause the replacing that stops production.At this moment just need to carry out inverted engine, the liquid medicine in major trough all be poured out, then also will use nitric acid the solid metal of separating out in major trough is dissolved and clear up just and can reuse this major trough.After cleaning, can again open the NiPdAu liquid medicine that a cylinder is new, aging to carry out liquid medicine but this new NiPdAu liquid medicine need to be placed for some time, liquid medicine just can be for the production of after being aged to a certain degree.
Hence one can see that, once in described major trough, there is the phenomenon that metal ion is separated out, the liquid medicine that needs is stopped production and more renewed, and the overlong time of liquid medicine replacing, 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 for holding solution;
Liquid-inlet pipe, it has the first entrance and the first outlet, and described the first entrance is located at the liquid level below of solution in described major trough, and described the first outlet is connected to strainer;
Strainer, it is for filtering described solution;
Drain pipe, it has the second entrance and at least one the second outlet, and described the second entrance is connected to described strainer, and described at least one second outlet is positioned at described major trough inclination or vertically towards the bottom of described major trough;
At least described the first entrance in described the first entrance, the first outlet, the second entrance, the second outlet is connected with conduit, and the surface of described conduit is provided with a plurality of through holes, and described 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 major trough is drained in strainer by liquid-inlet pipe;
By strainer, described solution is filtered;
Solution after filtering is drained in major trough by drain pipe;
In the ingress of described liquid-inlet pipe and the ingress and exit of exit and described drain pipe, at least in the ingress of described liquid-inlet pipe, make described solution suck described liquid-inlet pipe from both direction at least.
The filtration unit that the embodiment of the present invention provides and filter method, a plurality of through holes that arrange on surface due to described conduit are towards at least two different directions, solution can be inhaled into liquid-inlet pipe from both direction at least, so just can make solution no longer from same direction, be inhaled into described liquid-inlet pipe, thereby reduced the risk that forms circulation dead angle, and reduced the possibility that causes metal ion to separate out, and and then reduced production cost.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of prior art filtration unit;
Fig. 2 is the enlarged view of I-I part in Fig. 1;
Fig. 3 is the schematic diagram of embodiment of the present invention filtration unit;
Fig. 4 is the enlarged view of II-II part in Fig. 3.
Embodiment
The invention provides a kind of filtration unit, comprising:
Major trough, it is for holding solution;
Liquid-inlet pipe, it has the first entrance and the first outlet, and described the first entrance is located at the liquid level below of solution in described major trough, and described the first outlet is connected to strainer;
Strainer, it is for filtering described solution;
Drain pipe, it has the second entrance and at least one the second outlet, and described the second entrance is connected to described strainer, and described at least one second outlet is positioned at described major trough inclination or vertically towards the bottom of described major trough;
It is characterized in that, at least described the first entrance in described the first entrance, the first outlet, the second entrance, the second outlet is connected with conduit, and the surface of described conduit is provided with a plurality of through holes, and described a plurality of through holes are towards at least two different directions.
In a preferred embodiment, described the first entrance and described the 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 entrance or outlet, also can become one with corresponding entrance or outlet.
Preferably, in various embodiments of the present invention, distributing within the scope of the direction at 360 degree of described a plurality of through holes preferably distributes equably within the scope of the direction of 360 degree.
Preferably, in various embodiments of the present invention, the sectional area of the total area of described a plurality of through holes and described the first entrance adapts, for example, can equate.In a preferred embodiment, the total area of described a plurality of through holes can regulate to adapt to actual needs by the sectional area based on described the first entrance.
Preferably, in various embodiments of the present invention, in described major trough, be provided with secondary groove, the liquid level of solution in described major trough during higher than the sidewall of described secondary groove described in solution enter into described secondary groove, described conduit is located in described secondary groove, and
Distance between the surrounding of described conduit and the inwall of described secondary groove is 10～40 millimeters, be preferably 10～30 millimeters, be more preferably 20 millimeters;
Distance between the interior diapire of the bottom of described conduit and described secondary groove is 10～40 millimeters, be preferably 10～30 millimeters, be more preferably 20 millimeters.
Preferably, in various embodiments of the present invention,
The distribution density of the described through hole of close described first access point is less than the distribution density away from the described through hole of described first access point; And/or,
The size of the described through hole of close described first access point is less than the size away from the described through hole of described first access point.
Preferably, in various embodiments of the present invention,
Described through hole be shaped as circle, ellipse or Polygons; And/or
The cross-sectional shape of described conduit is circle, ellipse or Polygons.
Preferably, in various embodiments of the present invention, described conduit has can make the structure of described conduit translation and/or rotation in order to stir in real time or periodically described solution.Because solution is stirred, the possibility that occurs dead angle metal deposition is reduced like this.
Preferably, in various embodiments of the present invention, in described liquid-inlet pipe, be provided with for controlling the suction condition of described solution and/or the valve of suction velocity.
The invention provides a kind of filter method, comprising:
Solution in major trough is drained in strainer by liquid-inlet pipe;
By strainer, described solution is filtered;
Solution after filtering is drained in major trough by drain pipe;
It is characterized in that, in the ingress of described liquid-inlet pipe and the ingress and exit of exit and described drain pipe, at least in the ingress of described liquid-inlet pipe, make described solution suck described liquid-inlet pipe from both direction at least.
Preferably, in various embodiments of the present invention, make described solution suck described liquid-inlet pipe from both direction at least and comprise:
Make described solution from both direction at least, suck described liquid-inlet pipe under the state being stirred.
Preferably, in various embodiments of the present invention, make described solution suck described liquid-inlet pipe from both direction at least and also comprise:
Make described solution from both direction at least, be sucked described liquid-inlet pipe under predetermined or adjustable suction velocity.
Below in conjunction with accompanying drawing, embodiment of the present invention filtration unit and filter method are described in detail.Should be clear and definite, described embodiment is only a part of embodiment of the present invention, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making all other embodiment that obtain under creative work prerequisite, belong to the scope of protection of the invention.
Filtration unit in the embodiment of the present invention, comprising: major trough, and it is for holding solution; Liquid-inlet pipe, it has the first entrance and the first outlet, and described the first entrance is located at the liquid level below of solution in described major trough, and described the first outlet is connected to strainer; Strainer, it is for filtering described solution; Drain pipe, it has the second entrance and at least one the second outlet, and described the second entrance is connected to described strainer, and described at least one second outlet is positioned at described major trough inclination or vertically towards the bottom of described major trough; At least described the first entrance in described the first entrance, the first outlet, the second entrance, the second outlet is connected with conduit, and the side of described conduit is provided with a plurality of through holes, and described a plurality of through holes are towards at least two different directions.
The filtration unit that the embodiment of the present invention provides, a plurality of through holes that arrange on side due to described conduit are towards at least two different directions, solution can be inhaled into liquid-inlet pipe from both direction at least, so just can make solution no longer from same direction, be inhaled into described liquid-inlet pipe, thereby reduced the risk that forms circulation dead angle, and reduced the possibility that causes metal 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, described filtration unit comprises:
Major trough 1, it is provided with secondary groove 2 here for holding solution in major trough 1, the liquid level of solution in major trough 1 during higher than the sidewall of secondary groove 2 described in solution enter into secondary groove 2, but need clearly, in major trough 1, secondary groove 2 can be set in other embodiments of the invention;
Liquid-inlet pipe 3, it has the first entrance and the first outlet, described the first entrance is located at the liquid level below of secondary groove 2 interior solution, described the first outlet is connected to pump 4, pump 4 is drained into strainer 5 by the solution in secondary groove 2 by liquid-inlet pipe 3, while secondary groove 2 not being set in major trough 1, described the first entrance can be located to the liquid level below of major trough 1 interior solution, here after pump 4 being set between secondary groove 2 and strainer 5, can better the solution in secondary groove 2 be drained in strainer 5, but be not limited to this, in other embodiments of the invention pump 4 can be set, but by other modes such as actions of gravity, the solution in secondary groove 2 is drained in strainer 5,
Strainer 5, it is for filtering described solution;
Drain pipe 6, it has the second entrance and at least one the second outlet, and described the second entrance is connected to strainer 5, and described at least one second outlet is distributed on drain pipe 6 and to be positioned at major trough 1 tilted or vertically towards the bottom of major trough 1;
Described the first entrance is connected with the conduit 7 of sealing in the embodiment shown in fig. 3, as shown in Figure 4, the surface of conduit 7 is provided with a plurality of through holes 8, the plurality of through hole 8 is towards at least two different directions, can make like this solution be inhaled into liquid-inlet pipe 3 from both direction at least, thereby can make solution no longer from same direction, be inhaled into liquid-inlet pipe 3, thereby reduce the risk that forms circulation dead angle, and reduced the possibility that causes metal ion to separate out, and and then reduced production cost.
It should be noted that, the solution holding in major trough 1 can comprise any medicament using in industrial production.Such as being included in solution that the electroless copper plating solution that uses in the production process of wiring board, electroplating solution and NiPdAu technique used etc.Preferably, the solution holding in major trough 1 can be the solution of high density, especially for manufacturing the NiPdAu solution that uses in the required NiPdAu technique of slim special type of track plate etc.
Also it should be noted that, in various embodiments of the present invention, 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 the second exit of drain pipe 6, so that the solution after filtering can be discharged into major trough 1 from both direction at least, avoid forming circulation dead angle in the second exit of drain pipe 6, thereby cause metal ion to separate out.In addition, even can also be in the first exit of liquid-inlet pipe 3 or the second ingress of drain pipe 6 above-mentioned conduit 7 is set, to avoid the elsewhere outside major trough 1 to form circulation dead angle, thereby cause metal ion to separate out.By main reference, the conduit 7 in the first access point setting of liquid-inlet pipe 3 is described in the following description, can be with reference to learning as for the structure and function of the conduit 7 arranging in other positions.Preferably, can only in the first exit of liquid-inlet pipe 3 and/or the second exit of drain pipe 6 that are positioned at major trough 1, conduit 7 be set.
Be located at distributing of a plurality of through holes 8 on conduit 7 within the scope of the direction at 360 degree, generally speaking, when a plurality of scopes towards distributing of 8 passed through are when wider, described solution just can be inhaled into from more directions liquid-inlet pipe 3, thereby can reduce better the risk that causes circulation dead angle, therefore preferably implementation is to make distributing within the scope of the direction at 360 degree of a plurality of through holes 8.Preferably, can make a plurality of through holes 8 distribute equably within the scope of the direction of 360 degree, can improve like this homogeneity of the direction of liquid-inlet pipe 3 inhalation solutions, be unlikely to too much from the solution of some direction suctions, and the solution sucking from another direction is very few, with this, further reduce the risk that causes circulation dead angle.
After the first access point of liquid-inlet pipe 3 arranges conduit 7, first solution in secondary groove 2 be inhaled in liquid-inlet pipe 3 by a plurality of through holes 8 on conduit 7, and then be discharged in strainer 5 by liquid-inlet pipe 3, therefore in order to make to enter into after conduit 7 is set the flow of the solution of liquid-inlet pipe 3, to enter into the flow of solution of liquid-inlet pipe 3 when conduit 7 is not set roughly the same, can make the sectional area of the total area of a plurality of through holes 8 and the first entrance of liquid-inlet pipe 3 adapt.
By description above, known, in major trough 1, be provided with secondary groove 2, the liquid level of solution in major trough 1 during higher than the sidewall of secondary groove 2 described in solution enter into secondary groove 2, the first entrance of conduit 7 and liquid-inlet pipe 3 is located in secondary groove 2.Secondary groove 2 is for collecting the interior solution near middle and upper part of major trough 1, generally speaking in filtration unit, the solution after filter 5 filters can be drained into the bottom of major trough 1 by drain pipe 6, the chemically reactive of the solution of major trough 1 bottom is stronger like this, can meet processing requirement, but be positioned at major trough 1 top solution chemically reactive a little less than, this a part of solution need to be drained into and in strainer 5, filter with despumation and strengthen chemically reactive, the middle and upper part that therefore generally secondary groove 2 can be arranged in major trough 1 is positioned at the weak solution of chemically reactive of major trough 1 middle and upper part with collection.
For example, the size of secondary groove 2 can arrange according to the filtration velocity of strainer 5 and flow.For example, when the filtration velocity of strainer 5 and flow are when larger, the size of secondary groove 2 is also larger; When the filtration velocity of strainer 5 and flow hour, the size of secondary groove 2 is also less.
The size of conduit 7 can arrange according to the size of secondary groove 2.For example, when conduit 7 being arranged in secondary groove 2, can to make distance between the surrounding of conduit 7 and the inwall of secondary groove 2 be 10～40 millimeters, be preferably 10～30 millimeters, be more preferably 20 millimeters.Distance between the inwall of the surrounding of conduit 7 and secondary groove 2 can arrange according to the flow velocity and/or the flow that are inhaled into the solution in liquid-inlet pipe 3, for example, if it is larger to be inhaled into flow velocity and/or the flow of the solution in liquid-inlet pipe 3, can the distance between the surrounding of conduit 7 and the inwall of secondary groove 2 be arranged largerly, if it is less to be inhaled into flow velocity and/or the flow of solution of liquid-inlet pipe 3, can the distance between the surrounding of conduit 7 and the inwall of secondary groove 2 be arranged smallerly.Now shown in Figure 4, on the left and right directions shown in Fig. 4, length that can conduit 7 is set to the length that secondary groove 2 makes progress the party and deducts the resulting difference of distance between conduit 7 and secondary groove 2 left and right sides inwalls; In the direction of the vertical paper shown in Fig. 4, width that can conduit 7 is set to the width that secondary groove 2 makes progress the party and deducts the resulting difference of distance between conduit 7 and secondary groove 2 both sides, front and back inwalls, if conduit 7 is circular, the width value of conduit 7 is the diameter value of conduit 7, if conduit 7 is oval, the width value of conduit 7 can be major axis value or the minor axis value of conduit 7, if conduit 7 is Polygons, the width value of conduit 7 can connect for the inside/outside of Polygons conduit 7 diameter value of circle or the inside/outside circle of contact.But be not limited to this, the direction of the vertical paper shown in also can Fig. 4 is set to the length direction of conduit 7, and the left and right directions shown in Fig. 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 the distance between the bottom of conduit 7 and the interior diapire of secondary groove 2 can be made as 10～40 millimeters, be preferably made as 10～30 millimeters, be more preferably made as 20 millimeters.Distance between the bottom of conduit 7 and the interior diapire of secondary groove 2 also can arrange according to the flow velocity and/or the flow that are inhaled into the solution in liquid-inlet pipe 3, for example, if it is larger to be inhaled into flow velocity and/or the flow of the solution in liquid-inlet pipe 3, can the distance between the bottom of conduit 7 and the interior diapire of secondary groove 2 be arranged largerly, if it is less to be inhaled into flow velocity and/or the flow of solution of liquid-inlet pipe 3, can the distance between the bottom of conduit 7 and the interior diapire of secondary groove 2 be arranged smallerly.。
While a plurality of through hole 8 being 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 to be less than the distribution density away from a plurality of through holes 8 of the first access point of liquid-inlet pipe 3, because the first access point near liquid-inlet pipe 3 is to the strong easy more solution that sucks from here of the suction of solution, away from the first access point of liquid-inlet pipe 3, to the suction of solution is weak, easily suck from here less solution, so such arranging can be carried out certain restriction to the solution absorption of the first access point near liquid-inlet pipe 3, and the solution absorption of the first access point away from liquid-inlet pipe 3 is carried out to 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 to be less than the 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 absorption of the first access point near liquid-inlet pipe 3 is carried out to certain restriction, and the solution absorption of the first access point away from liquid-inlet pipe 3 be carried out to the effect of certain compensation.It is noted that above-mentionedly to the set-up mode of the distribution density of a plurality of through holes 8 and size, can be combined with, also can use separately.
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 blind ends of conduit 7, can be set to planar shaped or curved surface shaped, when being set to curved surface shaped, can be set to arc surface shape etc.
Preferably, can make conduit 7 have can time these conduit 7 translations and/or rotation structure in order to stir in real time or periodically described solution.For example, can make conduit 7 on the above-below direction shown in Fig. 4, do back and forth reciprocal translational motion, thereby stir the described solution in secondary groove 2, avoid the metal ion of the first access point of liquid-inlet pipe 3 to separate out due to static.Again for example, can make conduit 7 in the position shown in Fig. 4, do counterclockwise or clockwise rotatablely moving, with this, stir the described solution in secondary groove 2, avoid the metal ion of the first access point of liquid-inlet pipe 3 to separate out due to static.Can in the process of filtering, make conduit 7 keep translation or rotation, to stir in real time described solution always; Or can in the process of filtering, just make at set intervals conduit 7 translations or rotation, and make this translation or rotation maintain the regular hour, periodically to stir described solution.
Preferably, can on the pipeline of liquid-inlet pipe 3, valve be set, this valve can be for controlling suction condition and/or the suction velocity of described solution.Wherein said suction condition refers to and allows solution be drawn into conduit 7 also and then enter into liquid-inlet pipe 3, or stops solution to be inhaled in conduit 7, and for example this can realize by opening or closing described valve.Described suction velocity refers to solution and is inhaled into the speed in conduit 7.Can in liquid-inlet pipe 3, switch-valve be set, open this switch-valve, can make solution be drawn into conduit 7 also and then enter into liquid-inlet pipe 3, close this switch-valve, can stop solution to be inhaled in 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 the solution flow that can flow through this throttling valve by control is controlled suction velocity.
Can learn in sum, a plurality of through holes 8 that arrange on surface by conduit 7, can make solution be inhaled into liquid-inlet pipe 3 from both direction at least, so just can make solution no longer from same direction, be inhaled into liquid-inlet pipe 3, thereby reduced the risk that forms circulation dead angle, and reduced the possibility that causes metal ion to separate out, and and then reduced production cost.And what need to further illustrate is, first access point at liquid-inlet pipe 3 arranges after conduit 7, be not only at the first access point of liquid-inlet pipe 3, can improve solution circulated effect, avoid occurring circulation dead angle, but can impel by the circulating effect after the improvement of the first access point at liquid-inlet pipe 3 whole filtering system can carry out good solution circulated, and prevent the deposition of metal ion with this.
In addition, embodiments of the invention also provide a kind of filter method.Described filter method comprises:
Step 11, is drained into the solution in major trough in strainer by liquid-inlet pipe;
Step 12, filters described solution by strainer;
Step 13, is drained into the solution after filtering in major trough by drain pipe;
In step 11 in the solution in major trough is drained into strainer by liquid-inlet pipe time and in step 13 in the solution after filtering is drained into major trough by drain pipe time, can be in the ingress of described liquid-inlet pipe and the ingress and exit of exit and described drain pipe, at least in the ingress of described liquid-inlet pipe, make described solution suck described liquid-inlet pipe from both direction at least.
The filter method that the embodiment of the present invention provides, can make solution be inhaled into liquid-inlet pipe from both direction at least, so just can make solution no longer from same direction, be inhaled into described liquid-inlet pipe, thereby reduced the risk that forms circulation dead angle, and reduced the possibility that causes metal ion to separate out, and and then reduced production cost.
Preferably, in step 11 in the solution in major trough is drained into strainer by liquid-inlet pipe time, make solution suck described liquid-inlet pipe from both direction at least can be: in the ingress of described liquid-inlet pipe, can make described solution from both direction at least, suck described liquid-inlet pipe under static state, now can improve circulating effect by means of the mode that solution is inhaled into liquid-inlet pipe from least two different directions, avoid metal ion to separate out.More preferably, in the ingress of described liquid-inlet pipe, can make described solution from both direction at least, suck described liquid-inlet pipe under the state being stirred, avoid metal ion to separate out due to static.
Preferably, make solution suck described liquid-inlet pipe from both direction at least can also to be: make described solution from both direction at least, be sucked described liquid-inlet pipe under predetermined or adjustable suction velocity.Can on the pipeline of liquid-inlet pipe, valve be set, this valve can be for controlling suction condition and/or the suction velocity of described solution for this reason.Wherein said suction condition refers to and allows solution to be drawn into conduit also and then to enter into liquid-inlet pipe, or stops solution to be inhaled in conduit, and for example this can realize by opening or closing described valve.Described suction velocity refers to solution and is inhaled into the speed in conduit.Can switch-valve be set in liquid-inlet pipe, open this switch-valve, can make solution be drawn into conduit also and then enter into liquid-inlet pipe, close this switch-valve, can stop solution to be inhaled in 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 the solution flow that can flow through this throttling valve by control is controlled suction velocity.
It should be noted that, in each embodiment of filter method of the present invention, the solution holding in described major trough can comprise any medicament using in industrial production.Such as being included in solution that the electroless copper plating solution that uses in the production process of wiring board, electroplating solution and NiPdAu technique used etc.Preferably, the solution holding in major trough can be the solution of high density, especially for manufacturing the NiPdAu solution that uses in the required NiPdAu technique of slim special type of track plate etc.
Also it should be noted that, in each embodiment of filter method of the present invention, not only can make in the ingress of described liquid-inlet pipe described solution suck described liquid-inlet pipe from both direction at least, can also make in the exit of described drain pipe solution after filtering be discharged into major trough from both direction at least, avoid forming circulation dead angle in the exit of drain pipe, thereby cause metal ion to separate out.In addition, even can also be in the exit of liquid-inlet pipe or the ingress of drain pipe make described solution be inhaled into or get rid of from both direction at least, to avoid the elsewhere outside major trough to form circulation dead angle, thereby cause metal ion to separate out.Preferably, can only in the ingress that is positioned at the liquid-inlet pipe of described major trough, make described solution be inhaled into from both direction at least, and/or, can only in the exit that is positioned at the drain pipe of described major trough, make described solution be 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 in above-mentioned filtration unit embodiment.Or also can realize this filter method by other filtration units.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (10)
1. a filtration unit, comprising:
Major trough, it is for holding solution;
Liquid-inlet pipe, it has the first entrance and the first outlet, and described the first entrance is located at the liquid level below of solution in described major trough, and described the first outlet is connected to strainer;
Strainer, it is for filtering described solution;
Drain pipe, it has the second entrance and at least one the second outlet, and described the second entrance is connected to described strainer, and described at least one second outlet is positioned at described major trough inclination or vertically towards the bottom of described major trough;
It is characterized in that, at least described the first entrance in described the first entrance, the first outlet, the second entrance, the second outlet is connected with conduit, and the surface of described conduit is provided with a plurality of through holes, and described a plurality of through holes are towards at least two different directions;
Described conduit has can make the structure of described conduit translation and/or rotation in order to stir in real time or periodically described solution.
2. filtration unit according to claim 1, is characterized in that, distributing within the scope of the direction at 360 degree of described a plurality of through holes distributes equably within the scope of the direction of 360 degree.
3. filtration unit according to claim 1 and 2, is characterized in that, the sectional area of the total area of described a plurality of through holes and described the first entrance adapts.
4. according to aforementioned filtration unit claimed in claim 3, it is characterized in that, the distance between the surrounding of described conduit and the inwall of described secondary groove is 10～40 millimeters;
Distance between the interior diapire of the bottom of described conduit and described secondary groove is 10～40 millimeters.
5. according to aforementioned filtration unit claimed in claim 4, it is characterized in that,
The distribution density of the described through hole of close described first access point is less than the distribution density away from the described through hole of described first access point; And/or,
The size of the described through hole of close described first access point is less than the size away from the described through hole of described first access point.
6. according to aforementioned filtration unit claimed in claim 5, it is characterized in that,
Described through hole be shaped as circle, ellipse or Polygons; And/or
The cross-sectional shape of described conduit is circle, ellipse or Polygons.
7. according to aforementioned filtration unit claimed in claim 1, it is characterized in that, in described liquid-inlet pipe, be provided with for controlling the suction condition of described solution and/or the valve of suction velocity.
8. a filter method, comprising:
Solution in major trough is drained in strainer by liquid-inlet pipe;
By strainer, described solution is filtered;
Solution after filtering is drained in major trough by drain pipe;
It is characterized in that, in the ingress of described liquid-inlet pipe and the ingress and exit of exit and described drain pipe, at least in the ingress of described liquid-inlet pipe, make described solution suck described liquid-inlet pipe from both direction at least;
The ingress of described liquid-inlet pipe is connected with conduit, and the surface of described conduit is provided with a plurality of through holes, and described a plurality of through holes are towards at least two different directions;
Described conduit has can make the structure of described conduit translation and/or rotation in order to stir in real time or periodically described solution.
9. filter method according to claim 8, is characterized in that, makes described solution suck described liquid-inlet pipe from both direction at least and comprises:
Make described solution from both direction at least, suck described liquid-inlet pipe under the state being stirred.
10. filter method according to claim 8 or claim 9, is characterized in that, makes described solution suck described liquid-inlet pipe from both direction at least and also comprises:
Make described solution from both direction at least, be sucked described liquid-inlet pipe under predetermined or adjustable suction velocity.
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 CN102534739A (en) | 2012-07-04 |
| CN102534739B true 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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| Country | Link |
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Families Citing this family (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 |
Citations (5)
| 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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1157504C (en) * | 2000-03-21 | 2004-07-14 | 亚洲电镀器材有限公司 | Mixing device |
-
2010
- 2010-12-31 CN CN201010624234.5A patent/CN102534739B/en not_active Expired - Fee Related
Patent Citations (5)
| 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 |
| 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 | Publication date |
|---|---|
| CN102534739A (en) | 2012-07-04 |
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