CN104668279A - System and method for separating and regenerating paint slag - Google Patents
System and method for separating and regenerating paint slag Download PDFInfo
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- CN104668279A CN104668279A CN201510048067.7A CN201510048067A CN104668279A CN 104668279 A CN104668279 A CN 104668279A CN 201510048067 A CN201510048067 A CN 201510048067A CN 104668279 A CN104668279 A CN 104668279A
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- paint slag
- slag
- paint
- silica frost
- scum silica
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Abstract
The invention discloses a system for separating and regenerating paint slag. The system comprises a paint slag separation system and a paint slag regeneration system, wherein the paint slag separation system comprises a circulating water tank, a floating slag water tank, a deslagging water tank, a paint slag collection bucket, a first circulating pump and a second circulating pump, wherein a first overflow plate is arranged on the side all of the circulating water tank and is connected with the floating slag water tank; a second overflow plate is arranged on the side wall of the floating slag water tank; the floating slag water tank is connected with the paint slag collection bucket in the deslagging water tank through the second overflow plate; the first circulating pump is connected with the floating slag water tank and the circulating water tank; the second circulating pump is connected with the deslagging water tank and the floating slag water tank; the paint slag separation system is connected with the paint slag regeneration system through a transferring device. According to a method for separating and regenerating paint slag, after paint slag is separated by the paint slag separation system, the paint slag regeneration is carried out through the regeneration system. According to the system and method for separating and regenerating the paint slag, the collected and separated paint slag is recycled and reused, so that wastes are turned into treasures, and secondary pollution to the environment is also avoided.
Description
Technical field
The present invention relates to a kind of paint slag recycling system, particularly relate to the separation of a kind of paint slag, renovation process and system.
Background technology
Can produce a large amount of coating clouds in Furniture Factory's spray coating process, the over-sprayed paint fog not being attached to pending object surface not only forms severe contamination, and causes the waste of coating material.Current most domestic producer only adds lacquer mist coagulant and processes over-sprayed paint fog and lack subsequent treatment measure in recirculated water, and this finally can produce a large amount of waste paint slags, generally adopts landfill now, burning process, serious environmental problem is caused in capital, as air pollution, and water and soil pollution etc.
Summary of the invention
The technical problem to be solved in the present invention overcomes the deficiencies in the prior art, provides the separation of a kind of paint slag, regenerative system and method.
For solving the problems of the technologies described above, the technical scheme that the present invention proposes is:
A kind of paint slag is separated, regenerative system, comprise paint slag piece-rate system and paint slag regenerative system, described paint slag piece-rate system comprises circulating water chennel, scum silica frost tank, except slag bath, paint slag collection bucket, first circulating pump and the second circulating pump, described circulating water chennel sidewall is provided with the first overflow plate, described first overflow plate is connected with described scum silica frost tank, scum silica frost tank sidewall is provided with the second overflow plate, scum silica frost tank is connected with the described described paint slag collection bucket removed in slag bath by described second overflow plate, described first circulating pump connects scum silica frost tank and circulating water chennel, described second circulating pump connects except slag bath and scum silica frost tank, described paint slag piece-rate system is connected with described paint slag regenerative system by transfer device, and described paint slag regenerative system is paint slag regenerative system conventional in prior art.
Above-mentioned paint slag is separated, regenerative system, preferably, is connected between described first overflow plate and described scum silica frost tank by auxiliary deflector.
Above-mentioned paint slag is separated, regenerative system, and preferably, be provided with filter in described paint slag collection bucket, described filter is filter bag or filter bed.
Above-mentioned paint slag is separated, regenerative system, and preferably, described paint slag regenerative system mainly comprises the dewater unit be connected with regenerating unit; Described dewater unit mainly includes slag district, shakeouts district and baking zone, described Ru Zha district is provided with filter paper, describedly shakeout district and baking zone is located on crawler belt, described crawler belt is driven by drive motors, is provided with low speed vacuum machine and high-speed vacuum machine above described baking zone.
As a total inventive concept, the present invention also provides a kind of and is separated based on above-mentioned paint slag, the paint slag of regenerative system is separated, renovation process, comprises the following steps:
1) regulate pH value to 7 ~ 9 containing paint waste water in circulating water chennel, and add lacquer mist coagulant, make the concentration of aluminium polychloride in circulating water chennel be 35-45mg/L;
2) regulate the height of the first overflow plate on circulating water chennel sidewall, make to be flowed in scum silica frost tank by auxiliary deflector containing paint waste water, the water of scum silica frost bottom of gullet pumps in circulating water chennel by the first circulating pump;
3) the paint slag floated in scum silica frost tank is along with current are by the second overflow plate inflow paint slag collection bucket, filtrate after the filtration devices in paint slag collection bucket to flow in slagging-off tank and pumps in scum silica frost tank by the second circulating pump, and filter residue is transferred in dewater unit by transfer device and carries out heat oven dry and remove moisture;
4) step 3) heat is dried the paint slag after removing moisture to regenerate, meet coating specification.
Above-mentioned paint slag is separated, renovation process, preferably, in described step 1), containing the pH of paint waste water by adding NaOH or sodium metasilicate regulates.
Above-mentioned paint slag is separated, renovation process, preferably, in described step 1), lacquer mist coagulant is mainly mixed with by 70-74 weight portion melmac, 110-130 parts by weight of polypropylene acid amides, 26-28 weight parts of polymer aluminium chloride and 10-12 weight portion dodecyl amine hydrochloride.
Above-mentioned paint slag is separated, renovation process, preferably, and described step 2) in, the adjustable-height of the first overflow plate is 0.5 ~ 1.2m, and the spillway discharge controlled containing paint waste water is 1 ~ 3m
3/ s.
Above-mentioned paint slag is separated, renovation process, preferably, in described step 3), heat dries the concrete grammar removing moisture: the paint slag collected from paint slag gathering-device evenly poured into the Ru Zha district of dewater unit, then filter through filter paper, paint slag after filtration is shakeouing district's tiling, drive motors drives crawler belt to move, and make paint slag by baking zone, low speed vacuum machine and the paint slag of high-speed vacuum machine to baking zone carry out forced air drying.
Above-mentioned paint slag separation, renovation process, preferably, in described step 4), the concrete operation step of paint slag renovation process is: after broken for paint ground-slag, add diluent immersion, stirring and dissolving, filtration after paint slag stirs, standing, isolation of purified; Add diluent, optical brightener and mill base in last paint slag after cleaning, namely complete the regenerative process of paint slag.
Compared with prior art, the invention has the advantages that:
1) paint slag separation of the present invention, renovation process carry out recycling to collecting the paint slag be separated, and not only turn waste into wealth, but also avoid the secondary pollution to environment;
2) lacquer mist coagulant of the present invention's employing, effectively can solve the attachment issue of wet slag, flocculating effect is good, the efficiency that removes slag is high, substantially increases the operating efficiency of slagging-off;
3) paint slag of the present invention is separated, the system of regeneration has excellent compatibility and use value, according to other flocculating agent of the one-tenth component selections of paint slag, can produce good separation regeneration effect to various useless paint.
Accompanying drawing explanation
Fig. 1 is paint slag piece-rate system of the present invention and schematic flow sheet thereof.
Fig. 2 is paint slag dewater unit of the present invention and schematic flow sheet thereof.
Marginal data:
1, the first overflow plate; 2, auxiliary deflector; 3, the second overflow plate; 4, filter; 5, slag collection bucket is painted; 6, circulating water chennel; 7, the first circulating pump; 8, the second circulating pump; 9, scum silica frost tank; 10, except slag bath; 11, Ru Zha district; 12, crawler belt; 13, district is shakeout; 14, baking zone; 15, drive motors; 16, low speed vacuum machine; 17, high-speed vacuum machine.
Detailed description of the invention
For the ease of understanding the present invention, hereafter will do to describe more comprehensively, meticulously to the present invention in conjunction with Figure of description and preferred embodiment, but protection scope of the present invention is not limited to following specific embodiment.
Unless otherwise defined, hereinafter used all technical terms are identical with the implication that those skilled in the art understand usually.The object of technical term used herein just in order to describe specific embodiment is not be intended to limit the scope of the invention.
A kind of paint slag of the present invention is separated, regenerative system, comprise paint slag piece-rate system and paint slag regenerative system, paint slag piece-rate system comprises circulating water chennel 6, scum silica frost tank 9, paint slag collection bucket 5, except slag bath 10, first circulating pump 7 and the second circulating pump 8, circulating water chennel 6 sidewall is provided with the first overflow plate 1, first overflow plate 1 is connected by auxiliary deflector 2 with between scum silica frost tank 9, scum silica frost tank 9 sidewall is provided with the second overflow plate 3, scum silica frost tank 9 is connected with the paint slag collection bucket 5 in slag bath 10 by the second overflow plate 3, filter 4 is provided with in paint slag collection bucket 5, first circulating pump 7 connects scum silica frost tank 9 and circulating water chennel 6, second circulating pump 8 connects except slag bath 10 and scum silica frost tank 9, paint slag piece-rate system is connected with paint slag regenerative system by transfer cloth bag.Paint slag regenerative system mainly comprises the dewater unit be connected with regenerating unit, dewater unit mainly includes slag district 11, shakeouts district 13 and baking zone 14, wherein Ru Zha district 11 is provided with filter paper, shakeout district 13 and baking zone 14 is located on crawler belt 12, crawler belt 12 is driven by drive motors 15, is provided with low speed vacuum machine 16 and high-speed vacuum machine 17 above baking zone 14.
Paint slag based on above-mentioned paint slag separation, regenerative system is separated and renovation process, comprises the following steps:
1) first with NaOH or sodium metasilicate, the pH containing paint waste water in circulating water chennel 6 is adjusted to 7 ~ 9, and add lacquer mist coagulant and (corresponding lacquer mist coagulant on market can be selected according to the paint composition of slag and character, in the present embodiment, lacquer mist coagulant main component is 70-74 weight portion melmac, 110-130 parts by weight of polypropylene acid amides, 26-28 weight parts of polymer aluminium chloride and 10-12 weight portion dodecyl amine hydrochloride), make the concentration of aluminium polychloride in circulating water chennel 6 be 40mg/L.
2) regulate the first overflow plate 1 height (controllable height is 0.5 ~ 1.2m) according to operational circumstances, thus make spillway discharge maintain 1 ~ 3m
3/ s, makes to flow into scum silica frost tank 9, first circulating pump 7 containing paint waste water smoothly by auxiliary deflector 2 and is pumped in circulating water chennel 6 by the water in scum silica frost tank 9.
3) the second overflow plate 3 is regulated, change the liquid level of scum silica frost tank 9, make the paint slag of floating flow into paint slag collection bucket 5 through the second overflow plate 3 together along with current, the filtrate after the filter 4 in paint slag collection bucket 5 filters to flow in slagging-off tank 10 and pumps into scum silica frost tank 9 by the second circulating pump 8.
When painting slag collection bucket 5 and filling paint slag, open bottom paint slag collection bucket 5, paint slag is transferred to the Ru Zha district 11 of dewater unit by transfer cloth bag, after filter paper filters, enter and shakeout district 13 and tile, drive motors 15 drives crawler belt 12 to move to make paint slag by baking zone 14, and low speed vacuum machine 16 carries out forced air drying with the paint slag of high-speed vacuum machine 17 pairs of baking zones 14.
4) the paint slag after bone dry is placed in pulverizer is ground into powder, subsequently powder is placed on and adds diluent in the empty bucket of paint and soak 12 h, then use mixer stirring and dissolving.Again with 200 order piano-wire screens filtrations after first being filtered with 160 order piano-wire screens by paint slag after dissolving completely, after filtration, filtrate leaves standstill 24 h, allows and mixes at the bottom of the granule impurity such as iron powder, fine sand is in the solution sunken to barrel, then isolation of purified.Add diluent in last paint liquid after cleaning and regulate its viscosity, and add optical brightener, mill base etc. to meet coating specification.
Above-mentioned paint slag is separated with renovation process, employ homemade lacquer mist coagulant, can use in the scope of pH=7-9, efficiently solve common lacquer mist coagulant unsticking not significantly, flocculating effect is poor, slag making efficiency is low, paint slag is removed slow, and the problem containing part harmful substance (as formaldehyde).
Above-mentioned paint slag is separated with renovation process, regulating in circulating water chennel makes it be alkalescence containing the pH of paint waste water, and in gel state after sodium metasilicate hydrolysis, constantly produce in aqueous, constantly parcel isolation is carried out to paint particles, make paint inviscid, by means of the foam that flocculating agent in the air bubble in particulate gap and whipping process produces, make the constantly conglomeration of paint slag, floating.Meanwhile, scum silica frost bottom of gullet current are squeezed into circulating water chennel by the first circulating pump, define the circulatory system; Be provided with auxiliary deflector between circulating water chennel and scum silica frost tank, reduce active cross-section, current are become and accelerates, can prevent paint slag from backflowing simultaneously; Water in slag bath is squeezed into scum silica frost tank by the second circulating pump, plays Keep agitation effect to scum silica frost tank, effectively prevents from painting slag in scum silica frost tank, ensure that in scum silica frost tank and paints the good upper buoyancy of slag.
Claims (10)
1. a paint slag is separated, regenerative system, comprise paint slag piece-rate system and paint slag regenerative system, it is characterized in that, described paint slag piece-rate system comprises circulating water chennel (6), scum silica frost tank (9), except slag bath (10), paint slag collection bucket (5), first circulating pump (7) and the second circulating pump (8), described circulating water chennel (6) sidewall is provided with the first overflow plate (1), described first overflow plate (1) is connected with described scum silica frost tank (9), scum silica frost tank (9) sidewall is provided with the second overflow plate (3), scum silica frost tank (9) is connected with described described paint slag collection bucket (5) of removing in slag bath (10) by described second overflow plate (3), described first circulating pump (7) connects scum silica frost tank (9) and circulating water chennel (6), described second circulating pump (8) connects except slag bath (10) and scum silica frost tank (9), described paint slag piece-rate system is connected with described paint slag regenerative system by transfer device.
2. paint slag as claimed in claim 1 separation, regenerative system, is characterized in that, connected between described first overflow plate (1) and described scum silica frost tank (9) by auxiliary deflector (2).
3. paint slag as claimed in claim 1 separation, regenerative system, it is characterized in that, be provided with filter (4) in described paint slag collection bucket (5), described filter (4) is filter bag or filter bed.
4. paint slag as claimed in claim 1 separation, regenerative system, it is characterized in that, described paint slag regenerative system mainly comprises the dewater unit be connected with regenerating unit; Described dewater unit mainly includes slag district (11), shakeouts district (13) and baking zone (14), described Ru Zha district (11) is provided with filter paper, describedly shakeout district (13) and baking zone (14) is located on crawler belt (12), described crawler belt (12) is driven by drive motors (15), and described baking zone (14) top is provided with low speed vacuum machine (16) and high-speed vacuum machine (17).
5. based on painting described in any one of Claims 1 to 4, slag is separated, the paint slag of regenerative system is separated, a renovation process, comprises the following steps:
1) regulate pH value to 7 ~ 9 containing paint waste water in circulating water chennel (6), and add lacquer mist coagulant, the concentration making aluminium polychloride in circulating water chennel (6) is 35-45mg/L;
2) regulate the height of the first overflow plate (1) on circulating water chennel (6) sidewall, make to flow in scum silica frost tank (9) containing paint waste water by auxiliary deflector (2), the water of scum silica frost tank (9) bottom pumps in circulating water chennel (6) by the first circulating pump (7);
3) the paint slag floated in scum silica frost tank (9) is along with current are by the second overflow plate (3) inflow paint slag collection bucket (5), filtrate after the filter (4) in paint slag collection bucket (5) filters to flow in slagging-off tank (10) and pumps in scum silica frost tank (9) by the second circulating pump (8), and filter residue is transferred in dewater unit by transfer device and carries out heat oven dry and remove moisture;
Step 3) heat is dried the paint slag after removing moisture regenerate, meet coating specification.
6. paint slag as claimed in claim 5 be separated, renovation process, it is characterized in that, in described step 1), containing the pH of paint waste water by adding NaOH or sodium metasilicate regulates.
7. paint slag as claimed in claim 5 separation, renovation process, it is characterized in that, in described step 1), lacquer mist coagulant is mainly mixed with by 70-74 weight portion melmac, 110-130 parts by weight of polypropylene acid amides, 26-28 weight parts of polymer aluminium chloride and 10-12 weight portion dodecyl amine hydrochloride.
8. paint slag as claimed in claim 5 separation, renovation process, is characterized in that, described step 2) in, the adjustable-height of the first overflow plate (1) is 0.5 ~ 1.2m, and the spillway discharge controlled containing paint waste water is 1 ~ 3m
3/ s.
9. paint slag as claimed in claim 5 separation, renovation process, it is characterized in that, in described step 3), heat dries the concrete grammar removing moisture: the paint slag collected from paint slag gathering-device evenly poured into the Ru Zha district (11) of dewater unit, then filter through filter paper, paint slag after filtration is shakeouing district (13) tiling, drive motors (15) drives crawler belt (12) mobile, make paint slag by baking zone (14), low speed vacuum machine (16) and the paint slag of high-speed vacuum machine (17) to baking zone (14) carry out forced air drying.
10. the paint slag as described in any one of claim 5 ~ 9 is separated, renovation process, it is characterized in that, in described step 4), the concrete operation step of paint slag renovation process is: after broken for paint ground-slag, add diluent immersion, stirring and dissolving, filtration after paint slag stirs, standing, isolation of purified; Add diluent, optical brightener and mill base in last paint slag after cleaning, namely complete the regenerative process of paint slag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510048067.7A CN104668279B (en) | 2015-01-30 | 2015-01-30 | A kind of paint slag based on the separation of paint slag, regenerative system is separated, renovation process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510048067.7A CN104668279B (en) | 2015-01-30 | 2015-01-30 | A kind of paint slag based on the separation of paint slag, regenerative system is separated, renovation process |
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| CN104668279A true CN104668279A (en) | 2015-06-03 |
| CN104668279B CN104668279B (en) | 2017-06-30 |
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| CN201510048067.7A Expired - Fee Related CN104668279B (en) | 2015-01-30 | 2015-01-30 | A kind of paint slag based on the separation of paint slag, regenerative system is separated, renovation process |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111250318A (en) * | 2020-04-02 | 2020-06-09 | 绍兴市上虞嘉盛涂装有限公司 | Paint recycling device for spraying and working method thereof |
| CN113582298A (en) * | 2021-08-09 | 2021-11-02 | 奇瑞商用车（安徽）有限公司 | Electrolytic separation type paint mist treatment device |
| CN113860595A (en) * | 2021-11-12 | 2021-12-31 | 江苏雄安环保科技有限公司 | Multifunctional polar plate coupling electro-catalysis system and paint wastewater treatment method thereof |
| CN115183567A (en) * | 2022-06-23 | 2022-10-14 | 郑州日产汽车有限公司 | Lightweight treatment method for automobile coating paint slag |
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| CN111250318A (en) * | 2020-04-02 | 2020-06-09 | 绍兴市上虞嘉盛涂装有限公司 | Paint recycling device for spraying and working method thereof |
| CN113582298A (en) * | 2021-08-09 | 2021-11-02 | 奇瑞商用车（安徽）有限公司 | Electrolytic separation type paint mist treatment device |
| CN113860595A (en) * | 2021-11-12 | 2021-12-31 | 江苏雄安环保科技有限公司 | Multifunctional polar plate coupling electro-catalysis system and paint wastewater treatment method thereof |
| CN115183567A (en) * | 2022-06-23 | 2022-10-14 | 郑州日产汽车有限公司 | Lightweight treatment method for automobile coating paint slag |
| CN115183567B (en) * | 2022-06-23 | 2023-10-27 | 郑州日产汽车有限公司 | Light-weight treatment method for paint slag of automobile coating |
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| CN104668279B (en) | 2017-06-30 |
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