CN101168599A - Technique for regenerating waste solvent paint - Google Patents
Technique for regenerating waste solvent paint Download PDFInfo
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- CN101168599A CN101168599A CNA2006100976264A CN200610097626A CN101168599A CN 101168599 A CN101168599 A CN 101168599A CN A2006100976264 A CNA2006100976264 A CN A2006100976264A CN 200610097626 A CN200610097626 A CN 200610097626A CN 101168599 A CN101168599 A CN 101168599A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
The invention provides a regeneration process for waste solvent paint, and is the process that waste solvent paint from coating construction or waste paint from the manufacturing industry is taken as raw material and is recovered and regenerated into qualified solvent paint through the certain processing steps. The waste paint from the manufacturing industry and the coating construction can be effectively recovered by the method of the invention, the regeneration method is scientific and reasonable, the qualification rate of regeneration products is high, and the regeneration process does not fundamentally generate the three wastes.
Description
Technical field
The present invention relates to a kind of reclaiming process of reclaiming technology, particularly a kind of waste solvent paint of lacquer.
Background technology
Paint is being commonly called as of coating, and it is of many uses.About 1,800,000 tons of China's coating annual production at present divides the 17th Session of the General Assembly class, and more than 1000 kind occupies the 4th in the world.Paint make and application process in can produce a lot of horn scraps down, useless lacquer, contain the flammable and explosive substance group in useless the lacquer, not only dangerous but also contaminate environment.Deriving from the manufacturing useless lacquer of paint, generally all is that color mixes and special heavy-gravity mashed prod, generally can be divided into three kinds of red, black, ashes by form and aspect, also contains active substances such as filmogen, pigment and auxiliary agent in useless the lacquer.And derive from the waste solvent paint that produces in the coating decoration, have produce because of quality is bad do not cover the end, whiting, color be not inconsistent, the useless lacquers of state such as tangerine peel, particle are outstanding, gelling, also have bad because of constructing, store improper produce separate out, slow curing, return sticking, pin hole, the useless lacquer of state such as bubble, grow dim, wherein yet contain active substances such as filmogen, pigment and auxiliary agent.And also do not have a kind of method that can reclaim useless lacquer safely and effectively in the prior art, thereby caused the wasting of resources of going up largely.
Summary of the invention
Technical problem to be solved by this invention is at the deficiencies in the prior art, provide a kind of craft science, can safe and effective reasonable recovery and the reclaiming process of the waste solvent paint that produces of non-secondary pollution.
Technical problem to be solved by this invention is to realize by following technical scheme.The present invention is a kind of reclaiming process of waste solvent paint, is characterized in, its step is as follows:
(1) waste solvent paint that coating decoration is got off is classified by its base-material composition and color, and the waste solvent paint with the same color of same composition places in the flashing tower then, fractionates out 150 ℃ of high polar solvents with interior boiling range, and it is standby to deposit jar; Steam excess and filter out impurities through the 40-60 eye mesh screen, lacquer must give up;
(2) with the useless lacquer of same a kind of form and aspect of step (1) gained or the useless lacquer of directly getting the same form and aspect that production gets off drop in the still kettle of strap clamp cover, drop into solvent simultaneously, useless lacquer is 1 with the weight ratio of solvent: (0.05-0.15); Then material in the still kettle is heated, after temperature of charge reached 40-60 ℃, the agitator that starts in the still kettle stirred, and stops heating and stir when temperature of charge reaches 100-120 ℃, be incubated 1-4 hour, distillate moisture in the material by pipe bundle condenser simultaneously; Do not restart stirring when having moisture to distillate, open valve material is discharged, cross the 60-80 mesh sieve, get paint vehicle A, filter residue A deposits in addition;
(3) paint vehicle A is dropped into ball mill, starts ball mill 2-4 hour, shut down, drop into the high polar solvent of step (1) gained, restart ball mill 15-40 hour after, discharge material, cross the 120-180 mesh sieve, paint vehicle B, filter residue B deposits in addition;
(4) paint vehicle B input is sealed in the basin, drop into resin solution when being heated to 70-90 ℃, continue heating, stirring, during to 40-50 ℃, open valve, material is crossed the 150-350 mesh sieve, gets paint vehicle C, and filter residue C deposits in addition;
(5) paint vehicle C is placed paint mixing tank, measure its composition after, drop into tinting pigment, auxiliary agent, solvent on demand and carry out paint, enter sand mill at last, grind filter the finished product solvent paint.
Described in the present invention solvent comprises dimethylbenzene, 200# industrial naptha, aromatic hydrocarbon solvent or the like for making the general solvent that solvent paint is used; Resin solution described in the step (4) is meant makes the resins for universal use solution that solvent paint is used, for resin is dissolved in the solvent gained, described resin comprises urethane resin, Resins, epoxy, Synolac, acrylic resin, vibrin, natural resin, resol and ketone resin, preferred ketone resin.
Technical problem to be solved by this invention can also further realize by following technical scheme.The reclaiming process of above-described a kind of waste solvent paint is characterized in, the filter residue B of gained in producing or filter residue C is dropped in the ball mill simultaneously with paint vehicle A reuse 1-3 time.
Technical problem to be solved by this invention can also further realize by following technical scheme.The reclaiming process of above-described a kind of waste solvent paint is characterized in, filter residue A, filter residue B and the filter residue C of gained in producing is mixed and made into briquette with coal or cinder, is used for burning.
Technical problem to be solved by this invention can also further realize by following technical scheme.The reclaiming process of above-described a kind of waste solvent paint is characterized in, the described solvent of step (2) is meant the mixture of dimethylbenzene and 200# industrial naptha.
Technical problem to be solved by this invention can also further realize by following technical scheme.The reclaiming process of above-described a kind of waste solvent paint is characterized in, dimethylbenzene accounts for the 50-60% of mixture weight.
Technical problem to be solved by this invention can also further realize by following technical scheme.The reclaiming process of above-described a kind of waste solvent paint is characterized in, the described resin solution of step (4) is meant ketone resin solution, is dissolved in aromatic hydrocarbon solvent and is formed by ketone resin.
Technical problem to be solved by this invention can also further realize by following technical scheme.The reclaiming process of above-described a kind of waste solvent paint is characterized in, in the step (4), material sieves, and time-division 2-4 level is from coarse to fine carries out.
Technical problem to be solved by this invention can also further realize by following technical scheme.The reclaiming process of above-described a kind of waste solvent paint is characterized in, the described auxiliary agent of step (5) is meant anti-settling agent, dispersion agent, siccative and flow agent; Solvent is meant one or more the mixed solvent in dimethylbenzene, 200# industrial naptha, butanols and the esters solvent.
Technical problem to be solved by this invention can also further realize by following technical scheme.The reclaiming process of above-described a kind of waste solvent paint is characterized in, its step is as follows:
(1) waste solvent paint that coating decoration is got off is classified by its base-material composition and color, and the waste solvent paint with the same color of same composition places in the flashing tower then, fractionates out 150 ℃ of high polar solvents with interior boiling range, and it is standby to deposit jar; Steam excess and filter out impurities through 50 eye mesh screens, lacquer must give up;
(2) with the useless lacquer of same a kind of form and aspect of step (1) gained or the useless lacquer of directly getting the same form and aspect that production gets off drop in the still kettle of strap clamp cover, drop into solvent simultaneously, useless lacquer is 1: 0.1 with the weight ratio of solvent, and described solvent is the mixture that dimethylbenzene and 200# industrial naptha are made into by weight at 1: 1; Then material in the still kettle is heated, after temperature of charge reached 50 ℃, the agitator that starts in the still kettle stirred, and stops heating and stir when temperature of charge reaches 110 ℃, was incubated 2 hours, distillated moisture in the material by pipe bundle condenser simultaneously;
Do not restart stirring when having moisture to distillate, open valve material is discharged, cross 80 mesh sieves, get paint vehicle A, filter residue A deposits in addition;
(3) paint vehicle A is dropped into ball mill, startup ball mill 3 hours is shut down, and drops into the high polar solvent of step (1) gained, restarts ball mill after 24 hours, discharges material, crosses 180 mesh sieves, gets paint vehicle B, and filter residue B deposits in addition;
(4) paint vehicle B is dropped in the sealing basin, input ketone resin solution continues heating, stirs when being heated to 80 ℃, during to 45 ℃, opens valve, and material is crossed 150 orders, 200 orders, 300 mesh sieves successively, gets paint vehicle C, and filter residue C deposits in addition;
(5) paint vehicle C is placed paint mixing tank, measure its composition after, drop into tinting pigment, auxiliary agent, solvent on demand and carry out paint, enter sand mill at last, grind filter the finished product solvent paint.
Compared with prior art, the present invention has the following advantages: can reclaim the useless lacquer that production and coating decoration get off effectively with the inventive method, its renovation process is scientific and reasonable, reconstituted product qualification rate height, and regenerative process does not have the three wastes substantially and produces.
Embodiment
Embodiment 1.A kind of reclaiming process of waste solvent paint, its step is as follows:
(1) waste solvent paint that coating decoration is got off is classified by its base-material composition and color, and the waste solvent paint with the same color of same composition places in the flashing tower then, fractionates out 150 ℃ of high polar solvents with interior boiling range, and it is standby to deposit jar; Steam excess and filter out impurities through 40 eye mesh screens, lacquer must give up;
(2) the useless lacquer with same a kind of form and aspect of step (1) gained drops in the still kettle of strap clamp cover, drops into solvent simultaneously, and useless lacquer is 1: 0.05 with the weight ratio of solvent; Then material in the still kettle is heated, after temperature of charge reached 40 ℃, the agitator that starts in the still kettle stirred, and stops heating and stir when temperature of charge reaches 100 ℃, was incubated 1 hour, distillated moisture in the material by pipe bundle condenser simultaneously; Do not restart stirring when having moisture to distillate, open valve material is discharged, cross 60 mesh sieves, get paint vehicle A, filter residue A deposits in addition;
(3) paint vehicle A is dropped into ball mill, startup ball mill 2 hours is shut down, and drops into the high polar solvent of step (1) gained, restarts ball mill after 15 hours, discharges material, crosses 120 mesh sieves, gets paint vehicle B, and filter residue B deposits in addition;
(4) paint vehicle B is dropped in the sealing basin, input resin solution when being heated to 70 ℃ continues heating, stirs, and during to 40 ℃, opens valve, and material is crossed 150,200 mesh sieves successively, gets paint vehicle C, and filter residue C deposits in addition;
(5) paint vehicle C is placed paint mixing tank, measure its composition after, drop into tinting pigment, auxiliary agent, solvent on demand and carry out paint, enter sand mill at last, grind filter the finished product solvent paint.
Embodiment 2.A kind of reclaiming process of waste solvent paint, its step is as follows:
(1) waste solvent paint that coating decoration is got off is classified by its base-material composition and color, and the waste solvent paint with the same color of same composition places in the flashing tower then, fractionates out 150 ℃ of high polar solvents with interior boiling range, and it is standby to deposit jar; Steam excess and filter out impurities through 60 eye mesh screens, lacquer must give up;
(2) the useless lacquer with same a kind of form and aspect of step (1) gained drops in the still kettle of strap clamp cover, drops into solvent simultaneously, and useless lacquer is 1: 0.15 with the weight ratio of solvent; Then material in the still kettle is heated, after temperature of charge reached 60 ℃, the agitator that starts in the still kettle stirred, and stops heating and stir when temperature of charge reaches 120 ℃, was incubated 4 hours, distillated moisture in the material by pipe bundle condenser simultaneously; Do not restart stirring when having moisture to distillate, open valve material is discharged, cross 80 mesh sieves, get paint vehicle A, filter residue A deposits in addition;
(3) paint vehicle A is dropped into ball mill, startup ball mill 4 hours is shut down, and drops into the high polar solvent of step (1) gained, restarts ball mill after 40 hours, discharges material, crosses 180 mesh sieves, gets paint vehicle B, and filter residue B deposits in addition;
(4) paint vehicle B is dropped in the sealing basin, input resin solution when being heated to 90 ℃ continues heating, stirs, and during to 50 ℃, opens valve, and material is crossed 300,350 mesh sieves successively, gets paint vehicle C, and filter residue C deposits in addition;
(5) paint vehicle C is placed paint mixing tank, measure its composition after, drop into tinting pigment, auxiliary agent, solvent on demand and carry out paint, enter sand mill at last, grind filter the finished product solvent paint.
Embodiment 3.A kind of reclaiming process of waste solvent paint, its step is as follows:
(1) the useless lacquer of directly getting the same form and aspect that production gets off drops in the still kettle of strap clamp cover, drops into solvent simultaneously, and useless lacquer is 1: 0.05 with the weight ratio of solvent; Then material in the still kettle is heated, after temperature of charge reached 40 ℃, the agitator that starts in the still kettle stirred, and stops heating and stir when temperature of charge reaches 100, was incubated 1 hour, distillated moisture in the material by pipe bundle condenser simultaneously; Do not restart stirring when having moisture to distillate, open valve material is discharged, cross 60 mesh sieves, get paint vehicle A, filter residue A deposits in addition;
(2) paint vehicle A is dropped into ball mill, startup ball mill 2 hours is shut down, and drops into the high polar solvent of step (1) gained, restarts ball mill after 15 hours, discharges material, crosses 120 mesh sieves, gets paint vehicle B, and filter residue B deposits in addition;
(3) paint vehicle B is dropped in the sealing basin, input resin solution when being heated to 70 ℃ continues heating, stirs, and during to 40 ℃, opens valve, and material is crossed 150,250 mesh sieves successively, gets paint vehicle C, and filter residue C deposits in addition;
(4) paint vehicle C is placed paint mixing tank, measure its composition after, drop into tinting pigment, auxiliary agent, solvent on demand and carry out paint, enter sand mill at last, grind filter the finished product solvent paint.
Embodiment 4.A kind of reclaiming process of waste solvent paint, its step is as follows:
(1) the useless lacquer of directly getting the same form and aspect that production gets off drops in the still kettle of strap clamp cover, drops into solvent simultaneously, and useless lacquer is 1: 0.15 with the weight ratio of solvent; Then material in the still kettle is heated, after temperature of charge reached 60 ℃, the agitator that starts in the still kettle stirred, and stops heating and stir when temperature of charge reaches 120 ℃, be incubated 1-4 hour, distillate moisture in the material by pipe bundle condenser simultaneously; Do not restart stirring when having moisture to distillate, open valve material is discharged, cross 80 mesh sieves, get paint vehicle A, filter residue A deposits in addition;
(2) paint vehicle A is dropped into ball mill, startup ball mill 4 hours is shut down, and drops into the high polar solvent of step (1) gained, restarts ball mill after 40 hours, discharges material, crosses 180 mesh sieves, gets paint vehicle B, and filter residue B deposits in addition;
(3) paint vehicle B is dropped in the sealing basin, input resin solution when being heated to 90 ℃ continues heating, stirs, and during to 50 ℃, opens valve, and material is crossed 200,300 mesh sieves successively, gets paint vehicle C, and filter residue C deposits in addition;
(4) paint vehicle C is placed paint mixing tank, measure its composition after, drop into tinting pigment, auxiliary agent, solvent on demand and carry out paint, enter sand mill at last, grind filter the finished product solvent paint.
Embodiment 5.A kind of reclaiming process of waste solvent paint, its step is as follows:
(1) waste solvent paint that coating decoration is got off is classified by its base-material composition and color, and the waste solvent paint with the same color of same composition places in the flashing tower then, fractionates out 150 ℃ of high polar solvents with interior boiling range, and it is standby to deposit jar; Steam excess and filter out impurities through 40 eye mesh screens, lacquer must give up;
(2) with the useless lacquer of same a kind of form and aspect of step (1) gained or the useless lacquer of directly getting the same form and aspect that production gets off drop in the still kettle of strap clamp cover, drop into solvent simultaneously, described solvent is the mixture of dimethylbenzene and 200# industrial naptha, and useless lacquer is 1: 0.05 with the weight ratio of solvent; Then material in the still kettle is heated, after temperature of charge reached 40 ℃, the agitator that starts in the still kettle stirred, and stops heating and stir when temperature of charge reaches 100 ℃, was incubated 1 hour, distillated moisture in the material by pipe bundle condenser simultaneously; Do not restart stirring when having moisture to distillate, open valve material is discharged, cross 60 mesh sieves, get paint vehicle A, filter residue is deposited in addition;
(3) will produce in the filter residue B of gained or filter residue C and paint vehicle A drop in the ball mill recycling simultaneously 1 time, start ball mill 2 hours, shut down, drop into the high polar solvent of step (1) gained, restart ball mill after 15 hours, discharge material, cross 120 mesh sieves, get paint vehicle B, filter residue B deposits in addition;
(4) paint vehicle B is dropped in the sealing basin, drop into resin solution when being heated to 70 ℃, resin solution is meant ketone resin solution, be dissolved in aromatic hydrocarbon solvent and form by ketone resin, continue heating, stir, during to 40 ℃, open valve, material is crossed 150,200,250,350 mesh sieves successively, gets paint vehicle C, and filter residue C deposits in addition;
(5) paint vehicle C is placed paint mixing tank, measure its composition after, drop into tinting pigment, auxiliary agent, solvent on demand and carry out paint, described auxiliary agent is meant anti-settling agent, dispersion agent, siccative and flow agent; Solvent is meant and a kind of in dimethylbenzene, 200# industrial naptha, butanols or the esters solvent enters sand mill at last, grind filter the finished product solvent paint.
Embodiment 6.A kind of reclaiming process of waste solvent paint, its step is as follows:
(1) waste solvent paint that coating decoration is got off is classified by its base-material composition and color, and the waste solvent paint with the same color of same composition places in the flashing tower then, fractionates out 150 ℃ of high polar solvents with interior boiling range, and it is standby to deposit jar; Steam excess and filter out impurities through 60 eye mesh screens, lacquer must give up;
(2) with the useless lacquer of same a kind of form and aspect of step (1) gained or the useless lacquer of directly getting the same form and aspect that production gets off drop in the still kettle of strap clamp cover, drop into solvent simultaneously, described solvent is the mixture of dimethylbenzene and 200# industrial naptha, wherein dimethylbenzene accounts for 50% of mixture weight, and useless lacquer is 1: 0.15 with the weight ratio of solvent; Then material in the still kettle is heated, after temperature of charge reached 60 ℃, the agitator that starts in the still kettle stirred, and stops heating and stir when temperature of charge reaches 120 ℃, was incubated 4 hours, distillated moisture in the material by pipe bundle condenser simultaneously; Do not restart stirring when having moisture to distillate, open valve material is discharged, cross 80 mesh sieves, get paint vehicle A, filter residue A deposits in addition;
(3) will produce in the filter residue B of gained or filter residue C and paint vehicle A drop in the ball mill recycling simultaneously 2 times, start ball mill 4 hours, shut down, drop into the high polar solvent of step (1) gained, restart ball mill after 40 hours, discharge material, cross 180 mesh sieves, get paint vehicle B, filter residue B deposits in addition;
(4) paint vehicle B is dropped in the sealing basin, drop into resin solution when being heated to 90 ℃, resin solution is meant polyurethane resin solution, be dissolved in aromatic hydrocarbon solvent and form by urethane resin, continue heating, stir, during to 50 ℃, open valve, material is crossed 200,300,350 mesh sieves successively, gets paint vehicle C, and filter residue C deposits in addition;
(5) paint vehicle C is placed paint mixing tank, measure its composition after, drop into tinting pigment, auxiliary agent, solvent on demand and carry out paint, described auxiliary agent is meant anti-settling agent, dispersion agent, siccative and flow agent; Solvent is meant any two kinds mixed solvent in dimethylbenzene, 200# industrial naptha, butanols and the esters solvent, enters sand mill at last, grind filter the finished product solvent paint.
Embodiment 7.A kind of reclaiming process of waste solvent paint, its step is as follows:
(1) waste solvent paint that coating decoration is got off is classified by its base-material composition and color, and the waste solvent paint with the same color of same composition places in the flashing tower then, fractionates out 150 ℃ of high polar solvents with interior boiling range, and it is standby to deposit jar; Steam excess and filter out impurities through 50 eye mesh screens, lacquer must give up;
(2) with the useless lacquer of same a kind of form and aspect of step (1) gained or the useless lacquer of directly getting the same form and aspect that production gets off drop in the still kettle of strap clamp cover, drop into solvent simultaneously, described solvent is the mixture of dimethylbenzene and 200# industrial naptha, wherein dimethylbenzene accounts for 60% of mixture weight, and useless lacquer is 1: 0.1 with the weight ratio of solvent; Then material in the still kettle is heated, after temperature of charge reached 50 ℃, the agitator that starts in the still kettle stirred, and stops heating and stir when temperature of charge reaches 110 ℃, was incubated 2 hours, distillated moisture in the material by pipe bundle condenser simultaneously; Do not restart stirring when having moisture to distillate, open valve material is discharged, cross 70 mesh sieves, get paint vehicle A, filter residue A deposits in addition;
(3) will produce in the filter residue B of gained or filter residue C and paint vehicle A drop in the ball mill recycling simultaneously 3 times, start ball mill 3 hours, shut down, drop into the high polar solvent of step (1) gained, restart ball mill after 24 hours, discharge material, cross 150 mesh sieves, get paint vehicle B, filter residue B deposits in addition;
(4) paint vehicle B is dropped in the sealing basin, drop into resin solution when being heated to 80 ℃, resin solution is meant epoxy resin solution, be dissolved in aromatic hydrocarbon solvent and form by Resins, epoxy, continue heating, stir, during to 60 ℃, open valve, material is crossed 150,200,250,350 mesh sieves successively, gets paint vehicle C, and filter residue C deposits in addition;
(5) paint vehicle C is placed paint mixing tank, measure its composition after, drop into tinting pigment, auxiliary agent, solvent on demand and carry out paint, described auxiliary agent is meant anti-settling agent, dispersion agent, siccative and flow agent; Solvent is meant and a kind of in dimethylbenzene, 200# industrial naptha, butanols and the esters solvent enters sand mill at last, grind filter the finished product solvent paint;
(6) will produce in filter residue A, the filter residue B of gained and filter residue C and coal or cinder be mixed and made into briquette, be used for burning.
Embodiment 8.A kind of reclaiming process of waste solvent paint, its step is as follows:
(1) waste solvent paint that coating decoration is got off is classified by its base-material composition and color, and the waste solvent paint with the same color of same composition places in the flashing tower then, fractionates out 150 ℃ of high polar solvents with interior boiling range, and it is standby to deposit jar; Steam excess and filter out impurities through 45 eye mesh screens, lacquer must give up;
(2) with the useless lacquer of same a kind of form and aspect of step (1) gained or the useless lacquer of directly getting the same form and aspect that production gets off drop in the still kettle of strap clamp cover, drop into solvent simultaneously, described solvent is the mixture of dimethylbenzene and 200# industrial naptha, wherein dimethylbenzene accounts for 55% of mixture weight, and useless lacquer is 1: 0.08 with the weight ratio of solvent; Then material in the still kettle is heated, after temperature of charge reached 45 ℃, the agitator that starts in the still kettle stirred, and stops heating and stir when temperature of charge reaches 105 ℃, was incubated 3 hours, distillated moisture in the material by pipe bundle condenser simultaneously; Do not restart stirring when having moisture to distillate, open valve material is discharged, cross 65 mesh sieves, get paint vehicle A, filter residue A deposits in addition;
(3) will produce in the filter residue B of gained or filter residue C and paint vehicle A drop in the ball mill recycling simultaneously 1 time, start ball mill 2.5 hours, shut down, drop into the high polar solvent of step (1) gained, restart ball mill after 30 hours, discharge material, cross 160 mesh sieves, get paint vehicle B, filter residue B deposits in addition;
(4) paint vehicle B is dropped in the sealing basin, drop into resin solution when being heated to 75 ℃, resin solution is meant alkyd resin solution, be dissolved in aromatic hydrocarbon solvent and form by Synolac, continue heating, stir, during to 42 ℃, open valve, material is crossed 150,250 mesh sieves successively, gets paint vehicle C, and filter residue C deposits in addition;
(5) paint vehicle C is placed paint mixing tank, measure its composition after, drop into tinting pigment, auxiliary agent, solvent on demand and carry out paint, enter sand mill at last, grind filter the finished product solvent paint;
(6) will produce in filter residue A, the filter residue B of gained and filter residue C and coal or cinder be mixed and made into briquette, be used for burning.
Embodiment 9.A kind of reclaiming process of waste solvent paint, its step is as follows:
(1) waste solvent paint that coating decoration is got off is classified by its base-material composition and color, and the waste solvent paint with the same color of same composition places in the flashing tower then, fractionates out 150 ℃ of high polar solvents with interior boiling range, and it is standby to deposit jar; Steam excess and filter out impurities through 55 eye mesh screens, lacquer must give up;
(2) with the useless lacquer of same a kind of form and aspect of step (1) gained or the useless lacquer of directly getting the same form and aspect that production gets off drop in the still kettle of strap clamp cover, drop into solvent simultaneously, described solvent is the mixture of dimethylbenzene and 200# industrial naptha, wherein dimethylbenzene accounts for 52% of mixture weight, and useless lacquer is 1: 0.12 with the weight ratio of solvent; Then material in the still kettle is heated, after temperature of charge reached 55 ℃, the agitator that starts in the still kettle stirred, and stops heating and stir when temperature of charge reaches 115 ℃, was incubated 3 hours, distillated moisture in the material by pipe bundle condenser simultaneously; Do not restart stirring when having moisture to distillate, open valve material is discharged, cross 75 mesh sieves, get paint vehicle A, filter residue A deposits in addition;
(3) paint vehicle A is dropped into ball mill, startup ball mill 4 hours is shut down, and drops into the high polar solvent of step (1) gained, restarts ball mill after 20 hours, discharges material, crosses 170 mesh sieves, gets paint vehicle B, and filter residue B deposits in addition;
(4) paint vehicle B is dropped in the sealing basin, drop into resin solution when being heated to 85 ℃, resin solution is meant acrylic resin or polyester resin solution, be dissolved in aromatic hydrocarbon solvent and form by acrylic resin or vibrin, continue heating, stir, during to 48 ℃, open valve, material is crossed 200,300,350 mesh sieves successively, gets paint vehicle C, and filter residue C deposits in addition;
(5) paint vehicle C is placed paint mixing tank, measure its composition after, drop into tinting pigment, auxiliary agent, solvent on demand and carry out paint, enter sand mill at last, grind filter the finished product solvent paint;
(6) will produce in filter residue A, the filter residue B of gained and filter residue C and coal or cinder be mixed and made into briquette, be used for burning.
Embodiment 10.A kind of reclaiming process of waste solvent paint, its step is as follows:
(1) waste solvent paint that coating decoration is got off is classified by its base-material composition and color, and the waste solvent paint with the same color of same composition places in the flashing tower then, fractionates out 150 ℃ of high polar solvents with interior boiling range, and it is standby to deposit jar; Steam excess and filter out impurities through 50 eye mesh screens, lacquer must give up;
(2) with the useless lacquer of same a kind of form and aspect of step (1) gained or the useless lacquer of directly getting the same form and aspect that production gets off drop in the still kettle of strap clamp cover, drop into solvent simultaneously, described solvent is the mixture of dimethylbenzene and 200# industrial naptha, and useless lacquer is 1: 0.9 with the weight ratio of solvent; Then material in the still kettle is heated, after temperature of charge reached 50 ℃, the agitator that starts in the still kettle stirred, and stops heating and stir when temperature of charge reaches 110 ℃, was incubated 2 hours, distillated moisture in the material by pipe bundle condenser simultaneously; Do not restart stirring when having moisture to distillate, open valve material is discharged, cross 70 mesh sieves, get paint vehicle A, filter residue A deposits in addition;
(3) will produce in the filter residue B of gained or filter residue C and paint vehicle A drop in the ball mill recycling simultaneously 1 time, start ball mill 3 hours, shut down, drop into the high polar solvent of step (1) gained, restart ball mill after 25 hours, discharge material, cross 140 mesh sieves, get paint vehicle B, filter residue B deposits in addition;
(4) paint vehicle B is dropped in the sealing basin, drop into resin solution when being heated to 80 ℃, resin solution is meant natural resin or phenol resin solution, be dissolved in aromatic hydrocarbon solvent and form by natural resin or resol, continue heating, stir, during to 45 ℃, open valve, material is crossed 150,250,350 mesh sieves successively, gets paint vehicle C, and filter residue C deposits in addition;
(5) paint vehicle C is placed paint mixing tank, measure its composition after, drop into tinting pigment, auxiliary agent, solvent on demand and carry out paint, enter sand mill at last, grind filter the finished product solvent paint.
Embodiment 11.A kind of reclaiming process of waste solvent paint, its step is as follows:
(1) waste solvent paint that coating decoration is got off is classified by its base-material composition and color, and the waste solvent paint with the same color of same composition places in the flashing tower then, fractionates out 150 ℃ of high polar solvents with interior boiling range, and it is standby to deposit jar; Steam excess and filter out impurities through 50 eye mesh screens, lacquer must give up;
(2) with the useless lacquer of same a kind of form and aspect of step (1) gained or the useless lacquer of directly getting the same form and aspect that production gets off drop in the still kettle of strap clamp cover, drop into solvent simultaneously, useless lacquer is 1: 0.1 with the weight ratio of solvent, and described solvent is the mixture that dimethylbenzene and 200# industrial naptha are made into by weight at 1: 1; Then material in the still kettle is heated, after temperature of charge reached 50 ℃, the agitator that starts in the still kettle stirred, and stops heating and stir when temperature of charge reaches 110 ℃, was incubated 2 hours, distillated moisture in the material by pipe bundle condenser simultaneously; Do not restart stirring when having moisture to distillate, open valve material is discharged, cross 80 mesh sieves, get paint vehicle A, filter residue A deposits in addition;
(3) paint vehicle A is dropped into ball mill, startup ball mill 3 hours is shut down, and drops into the high polar solvent of step (1) gained, restarts ball mill after 24 hours, discharges material, crosses 180 mesh sieves, gets paint vehicle B, and filter residue B deposits in addition;
(4) paint vehicle B is dropped in the sealing basin, input ketone resin solution continues heating, stirs when being heated to 80 ℃, during to 45 ℃, opens valve, and material is crossed 150 orders, 200 orders, 300 mesh sieves successively, gets paint vehicle C, and filter residue C deposits in addition;
(5) paint vehicle C is placed paint mixing tank, measure its composition after, drop into tinting pigment, auxiliary agent, solvent on demand and carry out paint, enter sand mill at last, grind filter the finished product solvent paint;
(6) will produce in filter residue A, the filter residue B of gained and filter residue C and coal or cinder be mixed and made into briquette, be used for burning.
Claims (9)
1. the reclaiming process of a waste solvent paint is characterized in that, its step is as follows:
(1) waste solvent paint that coating decoration is got off is classified by its base-material composition and color, and the waste solvent paint with the same color of same composition places in the flashing tower then, fractionates out 150 ℃ of high polar solvents with interior boiling range, and it is standby to deposit jar; Steam excess and filter out impurities through the 40-60 eye mesh screen, lacquer must give up;
(2) with the useless lacquer of same a kind of form and aspect of step (1) gained or the useless lacquer of directly getting the same form and aspect that production gets off drop in the still kettle of strap clamp cover, drop into solvent simultaneously, useless lacquer is 1 with the weight ratio of solvent: (0.05-0.15); Then material in the still kettle is heated, after temperature of charge reached 40-60 ℃, the agitator that starts in the still kettle stirred, and stops heating and stir when temperature of charge reaches 100-120 ℃, be incubated 1-4 hour, distillate moisture in the material by pipe bundle condenser simultaneously; Do not restart stirring when having moisture to distillate, open valve material is discharged, cross the 60-80 mesh sieve, get paint vehicle A, filter residue A deposits in addition;
(3) paint vehicle A is dropped into ball mill, starts ball mill 2-4 hour, shut down, drop into the high polar solvent of step (1) gained, restart ball mill 15-40 hour after, discharge material, cross the 120-180 mesh sieve, paint vehicle B, filter residue B deposits in addition;
(4) paint vehicle B input is sealed in the basin, drop into resin solution when being heated to 70-90 ℃, continue heating, stirring, during to 40-50 ℃, open valve, material is crossed the 150-350 mesh sieve, gets paint vehicle C, and filter residue C deposits in addition;
(5) paint vehicle C is placed paint mixing tank, measure its composition after, drop into tinting pigment, auxiliary agent, solvent on demand and carry out paint, enter sand mill at last, grind filter the finished product solvent paint.
2. the reclaiming process of a kind of waste solvent paint according to claim 1 is characterized in that, the filter residue B of gained in producing or filter residue C is dropped in the ball mill simultaneously with paint vehicle A reuse 1-3 time.
3. the reclaiming process of a kind of waste solvent paint according to claim 1 is characterized in that, filter residue A, filter residue B and the filter residue C of gained in producing is mixed and made into briquette with coal or cinder, is used for burning.
4. the reclaiming process of a kind of waste solvent paint according to claim 1 is characterized in that, the described solvent of step (2) is meant the mixture of dimethylbenzene and 200# industrial naptha.
5. the reclaiming process of a kind of waste solvent paint according to claim 4 is characterized in that, dimethylbenzene accounts for the 50-60% of mixture weight.
6. the reclaiming process of a kind of waste solvent paint according to claim 1 is characterized in that, the described resin solution of step (4) is meant ketone resin solution, is dissolved in aromatic hydrocarbon solvent and is formed by ketone resin.
7. the reclaiming process of a kind of waste solvent paint according to claim 1 is characterized in that, in the step (4), material sieves, and time-division 2-4 level is from coarse to fine carries out.
8. the reclaiming process of a kind of waste solvent paint according to claim 1 is characterized in that, the described auxiliary agent of step (5) is meant anti-settling agent, dispersion agent, siccative and flow agent; Solvent is meant one or more the mixed solvent in dimethylbenzene, 200# industrial naptha, butanols and the esters solvent.
9. the reclaiming process of a kind of waste solvent paint according to claim 1 is characterized in that, its step is as follows:
(1) waste solvent paint that coating decoration is got off is classified by its base-material composition and color, and the waste solvent paint with the same color of same composition places in the flashing tower then, fractionates out 150 ℃ of high polar solvents with interior boiling range, and it is standby to deposit jar; Steam excess and filter out impurities through 50 eye mesh screens, lacquer must give up;
(2) with the useless lacquer of same a kind of form and aspect of step (1) gained or the useless lacquer of directly getting the same form and aspect that production gets off drop in the still kettle of strap clamp cover, drop into solvent simultaneously, useless lacquer is 1: 0.1 with the weight ratio of solvent, and described solvent is the mixture that dimethylbenzene and 200# industrial naptha are made into by weight at 1: 1; Then material in the still kettle is heated, after temperature of charge reached 50 ℃, the agitator that starts in the still kettle stirred, and stops heating and stir when temperature of charge reaches 110 ℃, was incubated 2 hours, distillated moisture in the material by pipe bundle condenser simultaneously; Do not restart stirring when having moisture to distillate, open valve material is discharged, cross 80 mesh sieves, get paint vehicle A, filter residue A deposits in addition;
(3) paint vehicle A is dropped into ball mill, startup ball mill 3 hours is shut down, and drops into the high polar solvent of step (1) gained, restarts ball mill after 24 hours, discharges material, crosses 180 mesh sieves, gets paint vehicle B, and filter residue B deposits in addition;
(4) paint vehicle B is dropped in the sealing basin, input ketone resin solution continues heating, stirs when being heated to 80 ℃, during to 45 ℃, opens valve, and material is crossed 150 orders, 200 orders, 300 mesh sieves successively, gets paint vehicle C, and filter residue C deposits in addition;
(5) paint vehicle C is placed paint mixing tank, measure its composition after, drop into tinting pigment, auxiliary agent, solvent on demand and carry out paint, enter sand mill at last, grind filter the finished product solvent paint.
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| CN100528946C CN100528946C (en) | 2009-08-19 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103289466A (en) * | 2013-04-18 | 2013-09-11 | 彭志伟 | Treating agent for multi-component solvent recovered from container coating and application method thereof |
| CN103817138A (en) * | 2014-03-07 | 2014-05-28 | 左伏根 | Method for resourceful treatment of paint residue waste |
| CN106978043A (en) * | 2017-04-21 | 2017-07-25 | 深圳市阿斯顿漆业新技术有限公司 | Regeneration paint slag, its preparation method and its application |
| CN107177297A (en) * | 2017-06-15 | 2017-09-19 | 浙江润格木业科技有限公司 | The useless paint processing method of furniture paint spraying |
| CN109868042A (en) * | 2019-01-14 | 2019-06-11 | 河南省阳光防腐涂装有限公司 | A kind of expired regeneration technology for scrapping Polyester Paint |
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Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4028905C1 (en) * | 1990-09-12 | 1991-11-21 | Chemische Werke Kluthe Gmbh & Co, 6900 Heidelberg, De | High purity recycling of paints, lacquers or solvents contg. impurity - is by adjusting solid content, sedimenting coarse, particles, basifying supernatant, acidifying, pptn., etc. |
| CN1320489A (en) * | 2000-04-24 | 2001-11-07 | 三信精工株式会社 | Device and method for reuse of waste paint |
| CN1319460A (en) * | 2001-02-01 | 2001-10-31 | 郭占仁 | Recovery regeneration process for waste spraying paint |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103289466A (en) * | 2013-04-18 | 2013-09-11 | 彭志伟 | Treating agent for multi-component solvent recovered from container coating and application method thereof |
| CN103817138A (en) * | 2014-03-07 | 2014-05-28 | 左伏根 | Method for resourceful treatment of paint residue waste |
| CN106978043A (en) * | 2017-04-21 | 2017-07-25 | 深圳市阿斯顿漆业新技术有限公司 | Regeneration paint slag, its preparation method and its application |
| CN107177297A (en) * | 2017-06-15 | 2017-09-19 | 浙江润格木业科技有限公司 | The useless paint processing method of furniture paint spraying |
| CN110041559A (en) * | 2018-01-17 | 2019-07-23 | 昆山瑞正金属制品有限公司 | A kind of resin efficient recycling method |
| CN109868042A (en) * | 2019-01-14 | 2019-06-11 | 河南省阳光防腐涂装有限公司 | A kind of expired regeneration technology for scrapping Polyester Paint |
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| CN100528946C (en) | 2009-08-19 |
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