CN102086054A - Paint booth circulating water treating agent and preparation method thereof - Google Patents
Paint booth circulating water treating agent and preparation method thereof Download PDFInfo
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- CN102086054A CN102086054A CN 201010615786 CN201010615786A CN102086054A CN 102086054 A CN102086054 A CN 102086054A CN 201010615786 CN201010615786 CN 201010615786 CN 201010615786 A CN201010615786 A CN 201010615786A CN 102086054 A CN102086054 A CN 102086054A
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Abstract
The invention relates to a paint booth circulating water treating agent. The invention adopts the following technical scheme: the paint booth circulating water treating agent is 2wt%-30wt% of montmorillonite aqueous solution; and preferably, the treating agent is 5wt%-20wt% of montmorillonite aqueous solution. The preparation method of the treating agent comprises the following steps: adding montmorillonite and water in a container, and stirring for 1.5-2 hours under the condition that the stirring speed is more than 800rpm to prepare 2wt%-30wt% of montmorillonite aqueous solution. The preparation method of the invention has simple operations, wide range of application, low treatment cost and good treatment effect and is suitable for solvent-based paints and water-based paints.
Description
Technical field
The present invention relates to a kind of treatment agent of recirculated water and preparation method thereof that sprays paint that is used to purify.
Background technology
When spraying paint application in the paint spray booth,, mostly adopt cascade or water to revolve the mode of handling over-sprayed paint fog, made the oil spout lacquer fall in the middle of recirculated water for the paint that prevented spray (not going up workpiece) disperses.But only can cause the overload operation of line clogging and recycle pump like this, directly cause working efficiency to reduce even shutdown.In addition, the cleaning work of circulating water pool is also very difficult, the effort of taking a lot of work, and production brings a lot of inconvenience to serialization.Therefore adopt the method for in the recirculated water that sprays paint, adding chemical agent usually, make that the oil spout lacquer of crossing in the recirculated water produces the cohesion floating effect, form the lacquer slag, finally from system, discharge, to safeguard the normal operation of paint spraying system.
The spray paint chemical agent of recirculated water of traditional purification has two kinds: 1. with inorganic base (as: sodium hydroxide, yellow soda ash) and organic polymer (as: polyacrylamide) be mixed with the certain density aqueous solution at the scene respectively, in the recirculated water that sprays paint, add continuously, when this type of chemical agent is handled solvent-thinned paint recirculated water, can guarantee the clarity of recirculated water, but lacquer slag unsticking state labile, cause the obstruction of circulating water line and recycle pump leaf easily, what thereby influence was sprayed paint normally carries out, and inapplicable to water-miscible paint recirculated water.2. along with organic synthesis technology in the application in circulating water treatment field of spraying paint, developed the complete organic class chemical agent of two-pack, such chemical agent is added in the middle of the recirculated water that sprays paint continuously, when handling solvent-thinned paint and water-miscible paint, play very well equally, in recirculated water clarity, lacquer slag unsticking degree aspect all shows out of the ordinary, but that shortcoming is a processing cost is higher.
Summary of the invention
In order to overcome the above problems, the purpose of this invention is to provide a kind of simple to operate, (being applicable to solvent-thinned paint and water-miscible paint) applied widely, processing cost is low, the circulating water treatment agent of spraying paint that treatment effect is good.
To achieve these goals, the technical solution used in the present invention is: a kind of circulating water treatment agent of spraying paint, the circulating water treatment agent that it is characterized in that spraying paint are that concentration expressed in percentage by weight is 2%～30% the polynite aqueous solution.Preferably, the circulating water treatment agent of spraying paint is that concentration expressed in percentage by weight is 5%～20% the polynite aqueous solution.
The preparation method of the above-mentioned circulating water treatment agent of spraying paint, it is characterized in that the preparation method is: polynite and water are added in the container, low whipping speed stirred 1.5～2 hours greater than under 800 rev/mins the condition, made concentration expressed in percentage by weight and be 2%～30% the polynite aqueous solution.Preferred stirring velocity is 800～1500 rev/mins.
The present invention adopts clay as basic material.Clay is wide in the distribution on global scope, and storage is abundant, and is cheap.By the mineral composition classification, mainly be divided into: kaolin and polynite.The present invention simply mixes polynite with water, learn through overtesting, has only and adopts special technology and proportioning just can reach the purpose that purifies the recirculated water that sprays paint, and the present invention determines preparation method's processing parameter and proportioning by following experimental example.
Experimental example
(1) the spray paint preparation of recirculated water sample of simulation
In the 1000ml glass beaker, take by weighing the about 500ml of service water, be positioned over and carry out continuously stirring on the magnetic stirring apparatus, Dropwise 5 .0g solvent-type acrylic resin paint sample in beaker afterwards is as the simulation recirculated water that sprays paint;
(2) test method
Treatment agent is dripped in the middle of water sample is sprayed paint in simulation addition manner: intermittent type drips; Addition: from 0.2g, progressively increase, each increasing amount is counted according to 0.1g, and until the clarification of range estimation water sample, the lacquer slag all floats.Filter water sample afterwards, measure water sample COD value;
(3) selection of raw material
Get kaolin and polynite and place container respectively, add water, make concentration expressed in percentage by weight as shown in table 1, be 800 rev/mins at rotating speed and stirred 2 hours down, get final product.
The treatment agent of preparation by the test method treatment of simulated water sample that sprays paint, be the results are shown in Table 1.
Table 1
(4) selection of material concentration
Press the polynite aqueous solution of table 2 preparation different concns, rotating speed is 800 rev/mins, the results are shown in Table 2.
Table 2
Certain density polynite by high-speed stirring, can form stable colloidal attitude in the aqueous solution.But concentration is lower than at 2% o'clock, forms the lower colloidal dispersion of effective constituent, and the result can cause the big disadvantage of reagent consumption amount; When clay concentration is higher than 30%, have only part effective constituent to be dispersed in the middle of the colloidal dispersion, the clay of rest part can be separated out with sedimentary form and do not brought into play throwing out, and as can be seen by above-mentioned table 2, when clay concentration surpassed 30%, the reagent consumption amount can increase on the contrary, illustrated when clay concentration surpasses 30%, effective constituent is lower 5% ~ 25% o'clock effective constituent than clay concentration, and the reagent consumption amount rises;
(5) selection of rotating speed
Stir under different rotating speeds by table 3, the preparation treatment agent, concentration is 15%, the results are shown in Table 3
Table 3
Clay by stirring, disperses in water, and when stirring velocity was higher than 800 rev/mins, the clay wafer was opened in the aqueous solution fully, had certain electric density, thereby obtains to paint preferably flocculating property; When stirring velocity was lower than 800 rev/mins, the clay wafer in water was not opened fully, and the paint flocculence is relatively poor.
Therefore, can see, under the changeless condition of clay concentration,, when the reagent consumption amount only is 0.2g, can obtain treatment effect (the COD value is low) preferably when stirring velocity during greater than 800 rev/mins from above-mentioned table 3.Stirring velocity has very big influence to the degree of scatter of clay wafer in water, also just the flocculating property of medicament is had a significant impact.On the other hand, if stirring velocity is too high, then objectively just high to the requirement of products production equipment, the energy of consumption is just big more.
As shown in Figure 1 be that concentration is 15% clay water solution, respectively low whipping speed be obtain under the condition of 200 rev/mins and 1000 rev/mins sample, observed exterior appearance under scanning electron microscope.Therefrom can see the difference of the degree of scatter of clay wafer.When stirring velocity was 1000 rev/mins, the clay wafer was opened in the aqueous solution fully, had certain electric density, thereby can obtain to paint preferably flocculating property; When stirring velocity was 200 rev/mins, the clay wafer in water was not opened fully, and the paint flocculence is relatively poor.
Example as seen by experiment, key of the present invention is that polynite must be in 2 ~ 30% concentration range in the aqueous solution, simultaneously through 800 rev/mins high-speed stirring operation, the treatment agent of preparation makes an addition in the middle of the recirculated water that sprays paint continuously, can handle the recirculated water that sprays paint effectively.
The invention has the beneficial effects as follows: raw material of the present invention is easy to get, and cost is low, and consumption is few in actual application, makes an addition to continuously in the middle of the recirculated water that sprays paint, and can handle the recirculated water that sprays paint effectively.Treatment agent of the present invention is made an addition in the recirculated water that sprays paint continuously, the oil spout lacquer of crossing that falls in the middle of recirculated water is flocculated, and lacquer slag unsticking is in stable condition, is easy to separate, can not cause the overload operation of line clogging and recycle pump, be easy to the cleaning work of circulating water pool.Treatment agent of the present invention is applicable to solvent-thinned paint waste water and water-miscible paint waste water.
Description of drawings
Fig. 1 is the stereoscan photograph of the treatment agent that obtains under the different stirring velocitys.
Embodiment
Embodiment 1The circulating water treatment agent of spraying paint
2.0g polynite and 98.0g water are added in the container, use high-speed mixing equipment, adjust rotating speed to 800 rev/min, continuously stirring 2 hours is made 2.0% the polynite aqueous solution.
Embodiment 2The circulating water treatment agent of spraying paint
10.0g polynite and 90.0g water are added in the container, use high-speed mixing equipment, adjust rotating speed to 1000 rev/min, continuously stirring 2 hours is made 10.0% the polynite aqueous solution.
Embodiment 3The circulating water treatment agent of spraying paint
30.0g polynite and 70.0g water are added in the container, use high-speed mixing equipment, adjust rotating speed to 1200 rev/min, continuously stirring 2 hours is made 30.0% the polynite aqueous solution.
Embodiment 4The circulating water treatment agent of spraying paint
15.0g polynite and 85.0g water are added in the container, use high-speed mixing equipment, adjust rotating speed to 1000 rev/min, continuously stirring 2 hours is made 15.0% the polynite aqueous solution.
Claims (4)
1. circulating water treatment agent of spraying paint, the circulating water treatment agent that it is characterized in that spraying paint are that concentration expressed in percentage by weight is 2%～30% the polynite aqueous solution.
2. according to the described circulating water treatment agent of spraying paint of claim 1, the circulating water treatment agent that it is characterized in that spraying paint is that concentration expressed in percentage by weight is 5%～20% the polynite aqueous solution.
3. the preparation method of the described circulating water treatment agent of spraying paint of claim 1, it is characterized in that the preparation method is: polynite and water are added in the container, low whipping speed stirred 1.5～2 hours greater than under 800 rev/mins the condition, made concentration expressed in percentage by weight and be 2%～30% the polynite aqueous solution.
4. according to the preparation method of the described circulating water treatment agent of spraying paint of claim 3, it is characterized in that the preparation method is: polynite and water are added in the container, under 800～1500 rev/mins of the low whipping speeds, stirred 1.5～2 hours, make concentration expressed in percentage by weight and be 2%～30% the polynite aqueous solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010615786 CN102086054A (en) | 2010-12-31 | 2010-12-31 | Paint booth circulating water treating agent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010615786 CN102086054A (en) | 2010-12-31 | 2010-12-31 | Paint booth circulating water treating agent and preparation method thereof |
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| CN102086054A true CN102086054A (en) | 2011-06-08 |
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| CN 201010615786 Pending CN102086054A (en) | 2010-12-31 | 2010-12-31 | Paint booth circulating water treating agent and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110734663A (en) * | 2019-10-30 | 2020-01-31 | 湖南金裕环保科技有限公司 | Paint mist coagulant for water-based paint and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4401574A (en) * | 1981-07-21 | 1983-08-30 | Drew Chemical Corporation | Flocculation of aqueous paint waste |
| US6858093B2 (en) * | 2001-07-26 | 2005-02-22 | Ppg Industries Ohio, Inc. | Method for paint detackification using compositions containing chitosan |
| CN1978564A (en) * | 2005-12-02 | 2007-06-13 | 中国科学院金属研究所 | Nano clay modified epoxy zinc-rich coating, and its preparing method |
| CN101717140A (en) * | 2009-04-17 | 2010-06-02 | 上海立昌环境工程有限公司 | Paint fog flocculant using treatment fluid of waste oil residue as main component and preparation method and application thereof |
-
2010
- 2010-12-31 CN CN 201010615786 patent/CN102086054A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4401574A (en) * | 1981-07-21 | 1983-08-30 | Drew Chemical Corporation | Flocculation of aqueous paint waste |
| US6858093B2 (en) * | 2001-07-26 | 2005-02-22 | Ppg Industries Ohio, Inc. | Method for paint detackification using compositions containing chitosan |
| CN1978564A (en) * | 2005-12-02 | 2007-06-13 | 中国科学院金属研究所 | Nano clay modified epoxy zinc-rich coating, and its preparing method |
| CN101717140A (en) * | 2009-04-17 | 2010-06-02 | 上海立昌环境工程有限公司 | Paint fog flocculant using treatment fluid of waste oil residue as main component and preparation method and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| 《煤炭技术》 20100930 王一民 水性漆造渣剂的研制 第226-228页 1-4 第29卷, 第9期 2 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110734663A (en) * | 2019-10-30 | 2020-01-31 | 湖南金裕环保科技有限公司 | Paint mist coagulant for water-based paint and preparation method thereof |
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Application publication date: 20110608 |