CN105428219A - Water-cleaning circulating system and production line for substandard sheets produced in silk-screen printing - Google Patents

Water-cleaning circulating system and production line for substandard sheets produced in silk-screen printing Download PDF

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Publication number
CN105428219A
CN105428219A CN201510953184.8A CN201510953184A CN105428219A CN 105428219 A CN105428219 A CN 105428219A CN 201510953184 A CN201510953184 A CN 201510953184A CN 105428219 A CN105428219 A CN 105428219A
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China
Prior art keywords
sedimentation basin
screen printing
bad
outlet
silk screen
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CN201510953184.8A
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CN105428219B (en
Inventor
张津
汤叶华
施成军
孟晓华
卢宝荣
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Wuping County wangfa Agel Ecommerce Ltd
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EOPLLY NEW ENERGY TECHNOLOGY Co Ltd
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Priority to CN201510953184.8A priority Critical patent/CN105428219B/en
Publication of CN105428219A publication Critical patent/CN105428219A/en
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    • H—ELECTRICITY
    • H01—BASIC ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/02041—Cleaning
    • H01L21/02043—Cleaning before device manufacture, i.e. Begin-Of-Line process
    • H01L21/02052—Wet cleaning only

Abstract

The invention discloses a water-cleaning circulating system for substandard sheets produced in silk-screen printing. The water-cleaning circulating system comprises a soaking apparatus (2), a front surface flushing apparatus (3) and a back surface flushing apparatus (4); a first solution circulating apparatus (29) is arranged in a first liquid outlet (26); the outlet of the first solution circulating apparatus (29) is connected with a first liquid inlet (28); a second solution circulating apparatus (34) is arranged in a second liquid outlet (31); the outlet of the second solution circulating apparatus (34) is connected with a second liquid inlet (33); and filtering apparatuses for filtering solid precipitate are arranged in the first liquid outlet (26) and the second liquid outlet (31). Before the front surface and the back surface of the substandard sheets are cleaned, the substandard sheets are soaked for one time to remove a part of aluminum paste from the surfaces of the substandard sheets as well as to permeate a part of water to the aluminum paste; therefore, the aluminum paste is easy to fall off in the front surface flushing process and the back surface flushing process; the requirement on the water flow speed is lowered; and the separate recycling for aluminum and silver is realized.

Description

A kind of silk screen printing bad water clean cycle system and production line thereof
Technical field
The present invention relates to mechanical field, particularly relate to a kind of silk screen printing bad water clean cycle system and production line thereof.
Background technology
Crystal silicon solar back of the body electric field, back electrode are positioned at rear surface of solar cell, form the back side and the bottom electrode of silion cell.Match with the top electrode on silion cell surface, play the effect electric energy that silicon solar cell produces being sent to the external world, positive electrode and back electrode are passed through printing by silver slurry, back electrode by aluminium paste, dry, are sintered and formed.
In normal cell piece silk screen printing production process; often there will be the silk screen printing substandard products that some cause owing to printing exception, these substandard products mainly contain that front description is imperfect, back side figure is imperfect, back side aluminium paste has drained to the front or side etc. of cell piece.All these printing substandard products are once through drying, after sintering, and the slight substandard products such as to become, serious directly can produce waste product, thus has influence on final conforming product rate and transfer ratio.
Current be that artificial water cleans or rinses to the processing method of cell piece silk screen printing substandard products at all, and efficiency is low, weak effect, is unfavorable for the need of production of industrialization.
The utility model patent being CN203536461U as notification number discloses a kind of workbench for wiping silk screen printing substandard products, comprise desktop, arrange on the table for place and adsorb printing substandard products hollow table top, for the support of supporting desktop and the vacuum pump for making to produce negative pressure in table top and then adsorb printing substandard products, the panel of described table top is provided with multiple aperture, described table top base plate is provided with through hole, and described through hole is communicated with vacuum pump by flexible pipe.When adopting this workbench wiping silk screen printing substandard products, silver slurry is not easy to be stained with on left handed gloves, and convenient silver slurry reclaims; And silicon chip is fixing relatively more firm, improves operating efficiency.This patent adopts pure manual cleaning method, has cleaning efficiency low, weak effect, is unfavorable for the need of production of industrialization.
And for example notification number is that the patent of invention of CN102437234B discloses a kind of solar battery sheet printing and to do over again the processing method of substandard products, successively Ultrasonic Cleaning is carried out to solar battery sheet of doing over again, first time washing, hot hydrochloric acid cleaning, second time wash, dry and re-start silk screen printing, it solve the solar battery sheet after existing printing and effectively can not do over again and process and cause the problem of the wasting of resources, cost increase.But it does not relate to the equipment of cell piece cleaning, cannot realize the cleaning of automation yet, have cleaning efficiency low, weak effect, be unfavorable for the need of production of industrialization.
For another example notification number is that the patent of invention of CN100505334B discloses substandard products reworking method after a kind of crystal silicon solar cell sheet printing, comprises three steps: with HCL cleaning fluid, removes the aluminium paste at the cell piece back side; The silver slurry of positive and negative two of cell piece is removed with isopropyl alcohol; With degree of depth cleaning fluid, degree of depth cleaning is carried out to the cell piece substantially removing slurry, thoroughly wash small impurity.By the process of the method, the conversion efficiency of cell piece can reach the level of normal battery sheet, and outward appearance is also as good as with normal battery sheet, reaches the object of cleaning of doing over again.The disqualification rate of cell piece silk-screen is reduced to about 0.2% by original about 2%, thus improves qualification rate and the rate of finished products of silicon solar cell.But it does not relate to the equipment of cell piece cleaning yet, cannot realize the cleaning of automation yet, have cleaning efficiency low, weak effect, be unfavorable for the need of production of industrialization.
Summary of the invention
For the cleaning efficiency overcoming bad of the silk screen printing existed in prior art manual cleaning existence is low, weak effect, be unfavorable for the problems such as industrialization need of production, the invention provides a kind of silk screen printing bad water clean cycle system, comprise infuser device, front flusher and reverse side flusher, the first liquid outlet is provided with bottom described infuser device, top is provided with the first gas outlet, side is provided with the first inlet, described first liquid outlet place is provided with the first solution circulating device, described first solution circulating device outlet is connected with described first inlet, tank is provided with below described front flusher and described reverse side flusher, described tank side is provided with the second liquid outlet, top is provided with the second gas outlet, side is provided with the second inlet, described second liquid outlet place is provided with the second solution circulating device, described second solution circulating device outlet is connected with described second inlet, described first liquid outlet and the second liquid outlet place are provided with for the sedimentary filter of filtering solids, described filter comprises and adopts acupunctures to be composited by three layers of nonwoven fabrics, be followed successively by melt spraying non-woven fabrics from front to back, needle punched non-woven fabrics, melt spraying non-woven fabrics.
In infuser device, solution is NaOH solution, utilizes the principle that aluminium can react with alkali in alkaline solution, and make the aluminium in bad be dissolved in NaOH solution, reaction equation is:
2Al+3OH -+6H 2O＝2[Al(OH) 4] -+3H 2↑
Hydrogen overflows from the first gas outlet and reclaims, and in the first solution circulating device, by regulating pH value, make the floccule forming white in solution, floccule precipitates in the first solution circulating device, and remaining solution return, in infuser device, realizes recycling.
Solution in front flusher and reverse side flusher is the mixed solution of nitric acid and sulfuric acid, after silver dissolves by the principle utilizing silver can react with acid in an acidic solution, then separates out in the second solution circulating device, realizes recovery.
Further, described first solution circulating device comprises and comprises the first sedimentation basin, the second sedimentation basin, the 3rd sedimentation basin and the first mixing arrangement from front to back successively, described first liquid outlet is connected with described first tank inlet, is provided with the 3rd inlet above described first sedimentation basin; In described first sedimentation basin, the second sedimentation basin and the 3rd sedimentation basin, hook-shaped agitating device is housed respectively, described first sedimentation basin, the second sedimentation basin and the 3rd sedimentation basin exit are equipped with the screen pack 40 for filtering flocky precipitate.Inlet is alkaline solution, can be used for regulating the pH value of solution, and solution is through screen pack, and floccule is blocked on its entering surface, thus realizes being separated, and is filtered, effectively can improve the rate of recovery containing aluminium floccule by three times.
Further, described screen pack comprises three layers, is followed successively by machine-woven fabric layer from front to back, acupuncture layer of cloth and machine-woven fabric layer, and the porosity of wherein said acupuncture layer of cloth is greater than 90%.By arranging the screen pack of macroporosity, reduce the resistance that solution is subject to when filtering.The aperture of the screen pack on described first sedimentation basin, the second sedimentation basin and the 3rd sedimentation basin reduces gradually, the diameter filtering floccule in three sedimentation basins can be made like this to reduce gradually, by the filtration of the first sedimentation basin, realize the filtration of bulk containing aluminium floccule, second sedimentation tank filter falls to remain a small amount of bulk and contains aluminium floccule containing aluminium floccule and a large amount of fritters, and last 3rd sedimentation tank filter falls the aluminium-containing precipitated thing of remaining fritter.
In addition, because namely this body structure of floccule has certain filter effect, it is attached to the strainability that can improve screen pack after on screen pack further, particularly to the strainability of fritter containing aluminium floccule.
Further, described 3rd settler is connected by pipeline with between described first mixing arrangement, described first mixing arrangement outlet is connected with described first inlet, is provided with the first fluid infusion mouth and the first agitating device for mixed solution in described first mixing arrangement.By adding certain density NaOH solution, make the concentration of mixed solution control setting scope in, can select here concentration be 30 ~ 35% NaOH solution liquid as a supplement.
Further, described second solution circulating device comprises the 4th sedimentation basin, filtering centrifuge and the second mixing arrangement, described 4th tank inlet is connected with described second liquid outlet, outlet is connected with described filtering centrifuge entrance, described filtering centrifuge outlet is connected with described second mixing arrangement entrance, described second mixing arrangement outlet is connected with described second inlet, is provided with the second fluid infusion mouth and the second agitating device for mixed solution in described second mixing arrangement.
Further, the 4th sedimentation basin is provided with the 4th inlet.
4th sedimentation basin is by adding hydrochloric acid, silver is separated out, 4th sedimentation basin and filtering centrifuge junction are provided with screen pack, silver-colored for major part sediment can be filtered, again through filtering centrifuge, further remaining silver recovery is utilized, in the second mixing arrangement, fill into the mixed liquor of a certain amount of nitric acid and sulfuric acid again, make the concentration of flushing liquor reach the requirement of setting.
Further, the roller diameter of described filtering centrifuge is 1000mm, and the rotating speed of described rotary drum is 2200r/mm, and separation factor is 2300, and inlet amount is 30 ~ 100m2/h.Adopt separation factor be 2300 be very applicable to sedimentary filtration silver-colored in solution, its inlet amount can according to produce speed and chemical reaction need regulate.
Further, be equipped with the sparge pipe of one or more in described front flusher and described reverse side flusher, be evenly distributed with the water jet of more than three on described in every bar, the water spraying direction of described water jet and the angle of horizontal direction are 30 ~ 70 °.Adopt that multiple water jet is equidirectional to be rinsed, can avoid the disorder of current, water spraying direction is defined as with the angle of horizontal direction being 30 ~ 70 ° when reducing the impulsive force of current to bad as far as possible, can improve its developing result.
Further, face, front can being adopted to rinse simultaneously, being placed to vertical state when rinsing by bad, if two row's sparge pipes, the angle of water jet and bad place plane is 30 ~ 70 °.
The present invention also provides a kind of production line with above-mentioned silk screen printing bad water clean cycle system, comprise feed arrangement, water clean cycle system, drying unit and drawing mechanism from front to back successively, described feed arrangement, water clean cycle system, between drying unit and drawing mechanism, adopt conveying device to run through connection.
Further, described conveying device both sides are provided with the orbit be arranged in parallel with described conveying device, described orbit is evenly distributed with positioner along its length, described positioner comprises fixing fixture block, for controlling the rotating control assembly of described fixing fixture block rotary motion, for controlling the translation control device that described rotating control assembly seesaws, described translation control device is slidably mounted on described orbit, the output of described translation control device is connected with described rotating control assembly, described fixing fixture block is fixed on the output of described rotating control assembly.
By translation control device, bad for silk screen printing is clamped or unclamped, rotating control assembly, by bad for silk screen printing upset, realizes positive and negative cleaning, realizes the automation of bad of silk screen printing cleaning.
Further, described translation control device comprises the housing be slidably mounted on described orbit, is fixed on first motor of described case inside one end, the screw mandrel be on the first motor center axle, fixture for fixing described rotating control assembly, described screw mandrel outer surface is provided with screw thread, and described fixture is provided with the nested mouth that an inner surface coordinates with described wire rod thread.First motor adopts servomotor, by screw rod transmission, is rectilinear motion by the convert rotational motion of electric machine main shaft, improves the accuracy during clamping of fixing fixture block.
Further, described screw mandrel can be divided into two parts, lay respectively on the orbit of the both sides of conveying device, and the fixture be respectively equipped with for fixing described rotating control assembly, described screw mandrel outer surface is provided with screw thread, two-part external screw thread direction is contrary, two described fixtures is respectively equipped with the nested mouth that an inner surface coordinates with described wire rod thread.First motor adopts servomotor, and by screw rod transmission, the rotating control assembly controlling the left and right sides moves to centre with identical speed, and clamp bad, the left and right sides adopts same screw mandrel, can improve accuracy when coordinating between two fixing fixture blocks and stability.
Further, plural sliding sleeve is also fixed with at described case inside, on each described sliding sleeve, have can along the slide block of described sliding sleeve direction side-to-side movement for cover, described slide block is all fixed in described fixture, rotating control assembly is along sleeve movement, improve stability during its rectilinear motion, reducing the impulsive force steadily bad not caused because sliding when fixing fixture block contacts with bad.
Further, described rotating control assembly comprises the second motor, harmonic wave speed reducing machine, the first rotating shaft and the second rotating shaft, described second motor and described harmonic wave speed reducing machine are fixed in described fixture, described first rotating shaft is fixed on described second motor center axle, described second rotating shaft one end is fixed on described first rotating shaft, and described fixing fixture block is fixed on the described second rotating shaft other end.Second motor adopts servomotor, rotates the upset realizing fixing fixture block, thus realize the cleaning to bad positive and negative by accurately controlling it.
Further, described fixing fixture block comprises the jaws towards described conveying device direction, and described jaws comprises for the fixing canned paragraph at bad edge and the changeover portion for having dragged described bad, and described changeover portion is the slope tilted to described jaws canned paragraph.
Further, resilient coating is provided with inside described jaws.When the fixing fixture block of reduction contacts with bad, or give the bad impulsive force brought in the process of cleaning, play the effect of buffering.
Further, described fixing fixture block changeover portion is in the same plane with described conveying device bottom.Like this, fixing fixture block is close to conveying device in bottom in the process of left movement, and when touching bad, bad holds up to canned paragraph by two the fixing fixture blocks arranged by left and right, and what realize bad is fixing.
Further, described changeover portion is curve, and the angle of its tangent line and fixing fixture block bottom surface increases from fixing fixture block tip gradually to jaws direction, and maximum angle is less than 80 DEG C.Bad can being reduced like this arriving the horizontal pressure force effect that in canned paragraph process, edge bears, reducing the impact on bad tablet quality.
The present invention also provides a kind of production method utilizing above-mentioned cleaning product line, comprises the steps:
Step one: bad for silk screen printing is placed in the conveying device in feed arrangement;
Step 2: the conveying device both sides positioner be positioned on orbit controls translation control device and is clipped in the middle bad for silk screen printing;
Step 3: described positioner drives bad of silk screen printing to enter infuser device, 2 ~ 3min is soaked in the cleaning fluid of infuser device, front flushing is carried out through front flusher, the angle of flushing water flow path direction and horizontal direction is less than 60 °, the speed of current is 0.3 ~ 0.6m/s, and water temperature is 30 ~ 60 DEG C;
Step 4: described positioner controls rotating control assembly and drives bad of silk screen printing upset 180 °, reverse side flushing is carried out again through reverse side flusher, the angle of flushing water flow path direction and horizontal direction is less than 60 °, and the speed of current is 0.3 ~ 0.6m/s, and water temperature is 30 ~ 60 DEG C;
Step 5: bad of silk screen printing is after drying unit is dried, and described positioner controls translation control device to two lateral movements, makes bad of silk screen printing depart from fixing fixture block, drops in the conveying device in described drawing mechanism, complete cleaning.
Preferably, in described infuser device, cleaning fluid is NaOH solution, and its solution concentration is 27%, and temperature controls at 22 DEG C; Flushing liquor in described front flusher and reverse side flusher is the mixed solution of nitric acid and hydrochloric acid, and the concentration of its solution is 5mol/L, and the proportioning of described nitric acid and described hydrochloric acid is 3:1.
Adopt positioner automatically locate and overturn, and by once soaking, front is rinsed and reverse side rinses, and improves the cleaning performance of bad, makes bad after the cleaning standard reaching recycling, achieves the automation mechanized operation of bad cleaning.
Before carrying out positive and negative cleaning, first through once soaking, not only can remove bad surface portion aluminium paste, and can play make the silver on its surface starch in penetrate into a part of water, make in the process of rinsing in front and rinsing on the contrary, silver slurry more easily comes off, and reduces the requirement to water velocity.The method also can realize the independent recovery to aluminium and silver.
Compared with prior art, the invention has the beneficial effects as follows:
(1) positioner is adopted, positioner comprises balance control device and rotating control assembly, by translation control device, bad for silk screen printing is clamped or unclamp, rotating control assembly is by bad for silk screen printing upset, realize positive and negative cleaning, realize the automation of bad of silk screen printing cleaning;
(2) first motors adopt servomotor, by screw rod transmission, are rectilinear motion by the convert rotational motion of electric machine main shaft, improve the accuracy during clamping of fixing fixture block;
(3) be fixed with plural sliding sleeve at case inside, rotating control assembly, along sleeve movement, improves stability during its rectilinear motion, reduces the impulsive force steadily do not caused bad because sliding when fixing fixture block contacts with bad;
(4) be provided with resilient coating inside jaws, when the fixing fixture block of reduction contacts with bad, or give the bad impulsive force brought in the process of cleaning, play the effect of buffering;
(5) jaws comprises the changeover portion for having dragged bad, changeover portion is curve, the angle of its tangent line and fixing fixture block bottom surface increases from fixing fixture block tip gradually to jaws direction, maximum angle is less than 80 DEG C, bad can being reduced like this arriving the horizontal pressure force effect that in canned paragraph process, edge bears, reducing the impact on bad tablet quality;
(6) positioner is adopted automatically to locate and overturn, and by once soaking, front is rinsed and reverse side rinses, and improves the cleaning performance making bad, make bad after the cleaning standard reaching recycling, achieve the automation mechanized operation of bad cleaning;
(7) before carrying out positive and negative cleaning, first through once soaking, not only can remove bad surface portion aluminium paste, and can play make the silver on its surface starch in penetrate into a part of water, make in the process of rinsing in front and rinsing on the contrary, silver slurry more easily comes off, and reduces the requirement to water velocity, and can realize the independent recovery to aluminium and silver.
(8) the first solution circulating device and the second solution circulating device are set, by solution circulation, filter out in cyclic process containing aluminium floccule and silver-colored sediment, and then supplement certain solute, realize recycling of solution.
Accompanying drawing explanation
Fig. 1 is the present invention's preferably production line block diagram;
Fig. 2 is the present invention's preferably FB(flow block);
Fig. 3 is the present invention preferably positioning device structure figure mono-;
Fig. 4 is the present invention preferably positioning device structure figure bis-;
Fig. 5 is the present invention's preferably geometrical clamp block structural diagram one;
Fig. 6 is the present invention's preferably geometrical clamp block structural diagram two;
Fig. 7 is the present invention's preferably the first solution circulating device structure chart;
Fig. 8 is the present invention's preferably the second solution circulating device structure chart.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Be illustrated in figure 1 the present invention's preferably production line block diagram, comprise feed arrangement 1, water clean cycle system, drying unit 5 and drawing mechanism 6 from front to back successively, described feed arrangement 1, water clean cycle system, adopt conveying device 7 to run through connection between drying unit 5 and drawing mechanism 6, described water clean cycle system comprises infuser device 2, front flusher 3 and reverse side flusher 4.
Be illustrated in figure 2 the present invention's preferably FB(flow block), bad of silk screen printing is through feed arrangement 1 charging, positioner 9 positions it, soak through infuser device 2 again, front flusher 3 carries out front flushing, then overturns 180 ° by positioner 9, then carries out reverse side flushing through reverse side flusher 4, drying unit 5 carries out drying rear discharging, obtains can be used for reclaiming the cell piece used.
Be illustrated in figure 3 the present invention preferably positioning device structure figure mono-, now positioner 9 is in the state before location, be illustrated in figure 4 the present invention preferably positioning device structure figure bis-, now positioner 9 is in state behind location, conveying device 7 both sides are provided with the orbit 8 be arranged in parallel with described conveying device 7, orbit 8 is evenly distributed with positioner 9 along its length, positioner 9 comprises fixing fixture block 20, for controlling the rotating control assembly of described fixing fixture block 20 rotary motion, for controlling the translation control device that described rotating control assembly seesaws, described translation control device is slidably mounted on described orbit 8, the output of described translation control device is connected with described rotating control assembly, described fixing fixture block 20 is fixed on the output of described rotating control assembly.
Translation control device comprises the housing 10 be slidably mounted on described orbit 8, is fixed on the first motor 11 of described housing 10 inner opposite end, the screw mandrel 18 be on the first motor 11 central shaft, fixture 15 for fixing described rotating control assembly, described screw mandrel 18 outer surface is provided with screw thread, and described fixture 15 is provided with the nested mouth 17 of an inner surface and described screw mandrel 18 threaded engagement.
Also be fixed with plural sliding sleeve 12 inside housing 10, on each described sliding sleeve 12, have can along the slide block 14 of described sliding sleeve 12 direction side-to-side movement for cover, and described slide block 14 is all fixed in described fixture 15; Described rotating control assembly comprises the second motor 13, harmonic wave speed reducing machine 16, first rotating shaft 25 and the second rotating shaft 19, described second motor 13 and described harmonic wave speed reducing machine 16 are fixed in described fixture 15, described first rotating shaft 25 is fixed on described second motor 13 central shaft, described second rotating shaft 19 one end is fixed on described first rotating shaft 25, and described fixing fixture block 20 is fixed on described second rotating shaft 19 other end.Second motor 13 adopts servomotor, rotates the upset realizing fixing fixture block, thus realize the cleaning to bad positive and negative by accurately controlling it.
As one preferred embodiment, screw mandrel 18 can be divided into two parts, lay respectively on the orbit 8 of the both sides of conveying device 7, and the fixture 15 be respectively equipped with for fixing described rotating control assembly, described screw mandrel 18 outer surface is provided with screw thread, two-part external screw thread direction is contrary, two described fixtures 15 is respectively equipped with the nested mouth 17 of an inner surface and described screw mandrel 18 threaded engagement.First motor 11 adopts servomotor, by screw mandrel 18 transmission, the rotating control assembly controlling the left and right sides moves to centre with identical speed, clamps bad, the left and right sides adopts same screw mandrel, can improve accuracy when coordinating between two fixing fixture blocks and stability.
Be illustrated in figure 5 the present invention's preferably geometrical clamp block structural diagram one, fixing fixture block 20 comprises the jaws 21 towards described conveying device 7 direction, described jaws 21 comprises for the fixing canned paragraph 22 at bad edge and the changeover portion 23 for having dragged described bad, and described changeover portion 23 is the slope tilted to described jaws canned paragraph 22; Resilient coating 24 is provided with inside jaws 21.
Fixing fixture block changeover portion 23 is in the same plane with described conveying device 7 bottom.
Be illustrated in figure 6 the present invention's preferably geometrical clamp block structural diagram two, fixing fixture block 20 comprises the jaws 21 towards described conveying device 7 direction, described jaws 21 comprises for the fixing canned paragraph 22 at bad edge and the changeover portion 23 for having dragged described bad, changeover portion 23 is curve, the angle of its tangent line and fixing fixture block 20 bottom surface increases from fixing fixture block 20 tip gradually to jaws 21 direction, and maximum angle is less than 80 DEG C.Bad can being reduced like this arriving the horizontal pressure force effect that in canned paragraph process, edge bears, reducing the impact on bad tablet quality.
Be illustrated in figure 7 the present invention's preferably the first solution circulating device structure chart, the first liquid outlet 26 is provided with bottom described infuser device 2, top is provided with the first gas outlet 27, side is provided with the first inlet 28, described first liquid outlet 26 place is provided with the first solution circulating device 29, and described first solution circulating device 29 exports and is connected with described first inlet 28; Described first solution circulating device 29 comprises and comprises the first sedimentation basin 35, second sedimentation basin 36, the 3rd sedimentation basin 37 and the first mixing arrangement 38 from front to back successively, described first liquid outlet 26 is connected with described first sedimentation basin 35 entrance, is provided with the 3rd inlet 39 above described first sedimentation basin; In described first sedimentation basin 35, second sedimentation basin 36 and the 3rd sedimentation basin 37, hook-shaped agitating device is housed respectively, described first sedimentation basin 35, second sedimentation basin 36 and the 3rd sedimentation basin 37 exit are equipped with the screen pack 40 for filtering flocky precipitate.Described first liquid outlet 26 and the second liquid outlet 31 place are provided with for the sedimentary filter of filtering solids, described filter comprises and adopts acupunctures to be composited by three layers of nonwoven fabrics, is followed successively by melt spraying non-woven fabrics, needle punched non-woven fabrics, melt spraying non-woven fabrics from front to back.
Screen pack 40 comprises three layers, be followed successively by machine-woven fabric layer from front to back, acupuncture layer of cloth and machine-woven fabric layer, the porosity of wherein said acupuncture layer of cloth is greater than 90%, be connected by pipeline between 3rd settler 37 with described first mixing arrangement 38, described first mixing arrangement 38 exports and is connected with described first inlet 28, is provided with the first fluid infusion mouth 41 and the first agitating device for mixed solution in described first mixing arrangement 38.The aperture of the screen pack on described first sedimentation basin, the second sedimentation basin and the 3rd sedimentation basin reduces gradually, the diameter filtering floccule in three sedimentation basins can be made like this to reduce gradually, by the filtration of the first sedimentation basin, realize the filtration of bulk containing aluminium floccule, second sedimentation tank filter falls to remain a small amount of bulk and contains aluminium floccule containing aluminium floccule and a large amount of fritters, and last 3rd sedimentation tank filter falls the aluminium-containing precipitated thing of remaining fritter.
In addition, because namely this body structure of floccule has certain filter effect, it is attached to the strainability that can improve screen pack after on screen pack further, particularly to the strainability of fritter containing aluminium floccule.
Be illustrated in figure 8 the present invention's preferably the second solution circulating device structure chart, tank 30 is provided with below front flusher 3 and described reverse side flusher 4, described tank 30 side is provided with the second liquid outlet 31, top is provided with the second gas outlet 32, side is provided with the second inlet 33, described second liquid outlet 31 place is provided with the second solution circulating device 34, and described second solution circulating device 34 exports and is connected with described second inlet 33.
Second solution circulating device 42 comprises the 4th sedimentation basin 43, filtering centrifuge 44 and the second mixing arrangement 45, described 4th sedimentation basin 43 entrance is connected with described second liquid outlet 31, outlet is connected with described filtering centrifuge 44 entrance, described filtering centrifuge 44 exports and is connected with described second mixing arrangement 45 entrance, described second mixing arrangement 45 exports and is connected with described second inlet 33, is provided with the second fluid infusion mouth 46 and the second agitating device for mixed solution in described second mixing arrangement 45.
4th sedimentation basin 43 is provided with the 4th inlet 47.
The roller diameter of filtering centrifuge 44 is 1000mm, and the rotating speed of described rotary drum is 2200r/mm, and separation factor is 2300, and inlet amount is 30 ~ 100m2/h.
Be equipped with the sparge pipe of one or more in front flusher 3 and described reverse side flusher 4, sparge pipe described in every bar is evenly distributed with the water jet of more than three, the water spraying direction of described water jet and the angle of horizontal direction are 30 ~ 70 °.
Conveying device 7 both sides are provided with the orbit 8 be arranged in parallel with described conveying device 7, described orbit 8 is evenly distributed with positioner 9 along its length, described positioner 9 comprises fixing fixture block 20, for controlling the rotating control assembly of described fixing fixture block 20 rotary motion, for controlling the translation control device that described rotating control assembly seesaws, described translation control device is slidably mounted on described orbit 8, the output of described translation control device is connected with described rotating control assembly, described fixing fixture block 20 is fixed on the output of described rotating control assembly.
The present embodiment also provides a kind of production method utilizing above-mentioned silk screen printing bad cleaning product line, comprises the steps:
Step one: bad for silk screen printing is placed in the conveying device 7 in feed arrangement 1;
Step 2: the conveying device 7 both sides positioner 9 be positioned on orbit 8 controls translation control device and is clipped in the middle bad for silk screen printing;
Step 3: described positioner 9 drives bad of silk screen printing to enter infuser device 2,2 ~ 3min is soaked in the cleaning fluid of infuser device 2, front flushing is carried out through front flusher 3, the angle of flushing water flow path direction and horizontal direction is less than 60 °, the speed of current is 0.3 ~ 0.6m/s, and water temperature is 30 ~ 60 DEG C;
Step 4: described positioner 9 controls rotating control assembly and drives bad of silk screen printing upset 180 °, reverse side flushing is carried out again through reverse side flusher 4, the angle of flushing water flow path direction and horizontal direction is less than 60 °, and the speed of current is 0.3 ~ 0.6m/s, and water temperature is 30 ~ 60 DEG C;
Step 5: bad of silk screen printing is after drying unit 5 is dried, described positioner 9 controls translation control device to two lateral movements, make bad of silk screen printing depart from fixing fixture block 20, drop in the conveying device 7 in described drawing mechanism 6, complete cleaning.
In infuser device 2, cleaning fluid is NaOH solution, and its solution concentration is 27%, and temperature controls at 22 DEG C; Flushing liquor in described front flusher 3 and reverse side flusher 4 is the mixed solution of nitric acid and sulfuric acid, and the concentration of its solution is 5mol/L, and the proportioning of described nitric acid and described sulfuric acid is 3:1.
Above-mentioned explanation illustrate and describes the preferred embodiments of the present invention, as previously mentioned, be to be understood that the present invention is not limited to the form disclosed by this paper, should not regard the eliminating to other embodiments as, and can be used for other combinations various, amendment and environment, and can in invention contemplated scope described herein, changed by the technology of above-mentioned instruction or association area or knowledge.And the change that those skilled in the art carry out and change do not depart from the spirit and scope of the present invention, then all should in the protection range of claims of the present invention.

Claims (10)

1. a silk screen printing bad water clean cycle system, it is characterized in that, comprise infuser device (2), front flusher (3) and reverse side flusher (4), described infuser device (2) bottom is provided with the first liquid outlet (26), top is provided with the first gas outlet (27), side is provided with the first inlet (28), described first liquid outlet (26) place is provided with the first solution circulating device (29), described first solution circulating device (29) outlet is connected with described first inlet (28), described front flusher (3) is provided with tank (30) with described reverse side flusher (4) below, described tank (30) side is provided with the second liquid outlet (31), top is provided with the second gas outlet (32), side is provided with the second inlet (33), described second liquid outlet (31) place is provided with the second solution circulating device (34), described second solution circulating device (34) outlet is connected with described second inlet (33), described first liquid outlet (26) and the second liquid outlet (31) place are provided with for the sedimentary filter of filtering solids, described filter comprises and adopts acupunctures to be composited by three layers of nonwoven fabrics, be followed successively by melt spraying non-woven fabrics from front to back, needle punched non-woven fabrics, melt spraying non-woven fabrics.
2. a kind of silk screen printing as claimed in claim 1 bad water clean cycle system, it is characterized in that, described first solution circulating device (29) comprises and comprises the first sedimentation basin (35), the second sedimentation basin (36), the 3rd sedimentation basin (37) and the first mixing arrangement (38) from front to back successively, described first liquid outlet (26) is connected with described first sedimentation basin (35) entrance, is provided with the 3rd inlet (39) above described first sedimentation basin; In described first sedimentation basin (35), the second sedimentation basin (36) and the 3rd sedimentation basin (37), hook-shaped agitating device is housed respectively, described first sedimentation basin (35), the second sedimentation basin (36) and the 3rd sedimentation basin (37) exit are equipped with the screen pack (40) for filtering flocky precipitate.
3. a kind of silk screen printing as claimed in claim 2 bad water clean cycle system, it is characterized in that, described screen pack (40) comprises three layers, is followed successively by machine-woven fabric layer from front to back, acupuncture layer of cloth and machine-woven fabric layer, the porosity of wherein said acupuncture layer of cloth is greater than 90%.
4. a kind of silk screen printing as claimed in claim 2 bad water clean cycle system, it is characterized in that, described 3rd settler (37) is connected by pipeline with between described first mixing arrangement (38), described first mixing arrangement (38) outlet is connected with described first inlet (28), is provided with the first fluid infusion mouth (41) and the first agitating device for mixed solution in described first mixing arrangement (38).
5. a kind of silk screen printing as claimed in claim 1 bad water clean cycle system, it is characterized in that, described second solution circulating device (42) comprises the 4th sedimentation basin (43), filtering centrifuge (44) and the second mixing arrangement (45), described 4th sedimentation basin (43) entrance is connected with described second liquid outlet (31), outlet is connected with described filtering centrifuge (44) entrance, described filtering centrifuge (44) outlet is connected with described second mixing arrangement (45) entrance, described second mixing arrangement (45) outlet is connected with described second inlet (33), the second fluid infusion mouth (46) and the second agitating device for mixed solution is provided with in described second mixing arrangement (45).
6. a kind of silk screen printing as claimed in claim 5 bad water clean cycle system, is characterized in that, the 4th sedimentation basin (43) is provided with the 4th inlet (47).
7. a kind of silk screen printing as claimed in claim 1 bad water clean cycle system, it is characterized in that, the sparge pipe of one or more is equipped with in described front flusher (3) and described reverse side flusher (4), be evenly distributed with the water jet of more than three on described in every bar, the water spraying direction of described water jet and the angle of horizontal direction are 30 ~ 70 °.
8. one kind has the production line of silk screen printing bad water clean cycle system as described in any one of claim 1-7, it is characterized in that, comprise feed arrangement (1), water clean cycle system, drying unit (5) and drawing mechanism (6) from front to back successively, described feed arrangement (1), water clean cycle system, between drying unit (5) and drawing mechanism (6), adopt conveying device (7) to run through connection.
9. production line as claimed in claim 8, it is characterized in that, described conveying device (7) both sides are provided with the orbit (8) be arranged in parallel with described conveying device (7), described orbit (8) is evenly distributed with positioner (9) along its length, described positioner (9) comprises fixing fixture block (20), for controlling the rotating control assembly of described fixing fixture block (20) rotary motion, for controlling the translation control device that described rotating control assembly seesaws, described translation control device is slidably mounted on described orbit (8), the output of described translation control device is connected with described rotating control assembly, described fixing fixture block (20) is fixed on the output of described rotating control assembly.
10. production line as claimed in claim 9, it is characterized in that, described translation control device comprises the housing (10) be slidably mounted on described orbit (8), be fixed on first motor (11) of described housing (10) inner opposite end, be in the screw mandrel (18) on the first motor (11) central shaft, for the fixture (15) of fixing described rotating control assembly, described screw mandrel (18) outer surface is provided with screw thread, described fixture (15) is provided with the nested mouth (17) of an inner surface and described screw mandrel (18) threaded engagement, described housing (10) inner side is also fixed with plural sliding sleeve (12), the upper cover of each described sliding sleeve (12) has can along the slide block (14) of described sliding sleeve (12) direction side-to-side movement, and described slide block (14) is all fixed in described fixture (15).
CN201510953184.8A 2015-12-17 2015-12-17 A kind of bad water clean cycle system of silk-screen printing and its production line Active CN105428219B (en)

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