CN110841362A - Raw lacquer grading filtration method - Google Patents
Raw lacquer grading filtration method Download PDFInfo
- Publication number
- CN110841362A CN110841362A CN201911078733.6A CN201911078733A CN110841362A CN 110841362 A CN110841362 A CN 110841362A CN 201911078733 A CN201911078733 A CN 201911078733A CN 110841362 A CN110841362 A CN 110841362A
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- CN
- China
- Prior art keywords
- filtration
- raw lacquer
- bag
- grade
- filter
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001914 filtration Methods 0.000 title claims abstract description 101
- 239000004922 lacquer Substances 0.000 title claims abstract description 57
- 230000000694 effects Effects 0.000 abstract description 9
- 239000012535 impurity Substances 0.000 abstract description 5
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 239000004744 fabric Substances 0.000 description 2
- 230000035807 sensation Effects 0.000 description 2
- -1 bark Natural products 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Materials (AREA)
Abstract
According to the raw lacquer grading filtration method provided by the invention, 5-grade filtration is carried out on raw lacquer by using bag type filtration equipment, the first-grade 60-mesh filtration, the second-grade 150-mesh filtration, the third-grade 300-mesh filtration, the fourth-grade 600-mesh filtration and the fifth-grade 1250-mesh filtration can ensure that the filtration precision of the raw lacquer reaches 1250 meshes, impurities in raw lacquer liquid are controlled below 10 microns, the performance and the adhesive force of the raw lacquer are greatly improved, and the bag type filtration equipment is simple and convenient to clean, low in labor intensity and large in filtration capacity, so that the filtration effect of the raw lacquer reaches the international first-class level.
Description
Technical Field
The invention relates to the field of paint preparation, in particular to a raw lacquer grading and filtering method.
Background
The raw lacquer is a natural product, impurities such as bark, leaves, dust and the like are inevitably generated in the picking and cutting process, and if the impurities are not filtered out, the spraying and painting effects of the paint are seriously influenced, so that the surface of the sprayed or painted paint has granular feel and unevenness.
The fine filtration of raw lacquer is always an industrial problem, in China, the traditional filtration mode is generally manual filtration by using a filter cloth and a twisting frame, and the filtration method has extremely low filtration efficiency and high labor intensity; in recent years, a centrifugal machine filtration method is used in japan, and although the method is low in labor intensity, the filtration efficiency is still low, the filtration effect is poor, and the cleaning after filtration is very tedious, time-consuming and labor-consuming.
Therefore, a method for grading and filtering raw lacquer is urgently needed, and the problems that the existing raw lacquer is low in filtering efficiency, high in labor intensity, poor in filtering effect, easy to generate granular feeling and uneven coating surface and tedious to clean can be solved.
Disclosure of Invention
The invention aims to provide a raw lacquer grading and filtering method, and aims to solve the problems that the existing raw lacquer filtering method is low in efficiency, high in labor intensity, poor in filtering effect, easy to generate granular sensation and uneven on the surface of a coating, and complicated in cleaning of filtering equipment.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a raw lacquer grading filtration method, which comprises the following steps:
(1) first-stage filtration: performing primary filtration on raw lacquer by using a bag filter, wherein the precision of a filter bag is 60 meshes;
(2) and (3) second-stage filtration: performing secondary filtration on the raw lacquer subjected to the primary filtration by using a bag filter, wherein the precision of a filter bag is 150 meshes;
(3) and (3) third-stage filtration: performing third-stage filtration on the raw lacquer subjected to the second-stage filtration by using a bag filter, wherein the precision of a filter bag is 300 meshes;
(4) fourth stage filtration: performing fourth-stage filtration on the raw lacquer subjected to the third-stage filtration by using a bag filter, wherein the precision of a filter bag is 600 meshes;
(5) and (3) fifth-stage filtration: and (4) carrying out fifth-stage filtration on the raw lacquer subjected to the fourth-stage filtration by using a bag filter, wherein the precision of a filter bag is 150 meshes.
Preferably, the filtering pressure of the bag filter is less than or equal to 0.2 MPa.
Compared with the prior art, the invention has the following beneficial technical effects:
according to the raw lacquer grading filtration method provided by the invention, 5-grade filtration is carried out on raw lacquer by using bag type filtration equipment, the first-grade 60-mesh filtration, the second-grade 150-mesh filtration, the third-grade 300-mesh filtration, the fourth-grade 600-mesh filtration and the fifth-grade 1250-mesh filtration can ensure that the filtration precision of the raw lacquer reaches 1250 meshes, impurities in raw lacquer liquid are controlled below 10 microns, the performance and the adhesive force of the raw lacquer are greatly improved, and the bag type filtration equipment is simple and convenient to clean, low in labor intensity and large in filtration capacity, so that the filtration effect of the raw lacquer reaches the international first-class level.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a raw lacquer grading and filtering method, which aims to solve the problems that the existing raw lacquer filtering method is low in efficiency, high in labor intensity, poor in filtering effect, easy to generate granular sensation and uneven on the surface of a coating, and complicated in cleaning of filtering equipment.
The present invention will be described in further detail with reference to specific embodiments in order to make the above objects, features and advantages more apparent and understandable.
Example 1:
the embodiment provides a raw lacquer grading filtration method, wherein the raw lacquer may be unprocessed raw lacquer or diluted raw lacquer, and the specific filtration method comprises the following steps: firstly, filtering raw lacquer by using a 60-mesh filter bag of a bag filter, wherein the pressure during filtering is controlled at 0.15 MPa; secondly, replacing a filter bag of 150 meshes with the bag filter, and filtering the raw lacquer filtered in the first step by using the bag filter; thirdly, replacing the 300-mesh filter bag of the bag filter, and filtering the raw lacquer filtered in the second step by using the bag filter; fourthly, replacing the 600-mesh filter bag of the bag filter, and filtering the raw lacquer filtered in the third step by using the bag filter; and fifthly, replacing a filter bag of 1250 meshes with the bag filter, and finally filtering the raw lacquer filtered in the fourth step by using the bag filter to obtain raw lacquer filtered in a grading way.
In order to verify the effect of the raw lacquer grading filtration method provided by the invention, the inventor sets a contrast test, filters 100L of raw lacquer by respectively adopting a filtration cloth and twisting frame filtration method, a centrifuge filtration method and the grading filtration method provided by the invention, records the time required by filtration, passes the raw lacquer obtained by the three filtration methods through a 1200-mesh filter screen, observes the passing condition of the raw lacquer, finally respectively coats the raw lacquer obtained by the three filtration methods on clean glass, has the same coating thickness, observes the leveling condition of the lacquer surface after the lacquer is dried, and has the following test results:
according to the raw lacquer grading filtration method provided by the invention, the time required for filtering the same amount of raw lacquer is shortest, the efficiency is highest, and among the raw lacquer obtained by the three filtration methods, the raw lacquer obtained by the filtration method provided by the invention has higher quality and contains the least impurities.
The principle and the implementation mode of the invention are explained by applying specific examples, and the description of the above examples is only used for helping understanding the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In summary, this summary should not be construed to limit the present invention.
Claims (2)
1. A raw lacquer grading filtration method is characterized in that: the filtration method comprises the following steps:
(1) first-stage filtration: performing primary filtration on raw lacquer by using a bag filter, wherein the precision of a filter bag is 60 meshes;
(2) and (3) second-stage filtration: performing secondary filtration on the raw lacquer subjected to the primary filtration by using a bag filter, wherein the precision of a filter bag is 150 meshes;
(3) and (3) third-stage filtration: performing third-stage filtration on the raw lacquer subjected to the second-stage filtration by using a bag filter, wherein the precision of a filter bag is 300 meshes;
(4) fourth stage filtration: performing fourth-stage filtration on the raw lacquer subjected to the third-stage filtration by using a bag filter, wherein the precision of a filter bag is 600 meshes;
(5) and (3) fifth-stage filtration: and (4) carrying out fifth-stage filtration on the raw lacquer subjected to the fourth-stage filtration by using a bag filter, wherein the precision of a filter bag is 150 meshes.
2. The raw lacquer classifying filtration method according to claim 1, characterized in that: the filtering pressure of the bag filter is less than or equal to 0.2 MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911078733.6A CN110841362A (en) | 2019-10-30 | 2019-10-30 | Raw lacquer grading filtration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911078733.6A CN110841362A (en) | 2019-10-30 | 2019-10-30 | Raw lacquer grading filtration method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110841362A true CN110841362A (en) | 2020-02-28 |
Family
ID=69599816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911078733.6A Pending CN110841362A (en) | 2019-10-30 | 2019-10-30 | Raw lacquer grading filtration method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110841362A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4013979A1 (en) * | 1989-07-17 | 1991-01-31 | Awatec Ag | Device for cleaning contaminated water - where water is treated with flocculating agent before being filtered in bag filter, to avoid clogging of filter pores |
| CN206350948U (en) * | 2016-12-22 | 2017-07-25 | 常熟世名化工科技有限公司 | Multilayer bag type filter |
| CN207418644U (en) * | 2017-10-26 | 2018-05-29 | 淄博三锐陶瓷科技有限公司 | Ceramic ink jet ink production system |
| CN207412927U (en) * | 2017-10-26 | 2018-05-29 | 淄博三锐陶瓷科技有限公司 | Ceramic ink filtration system |
| CN208340241U (en) * | 2018-04-12 | 2019-01-08 | 河南鑫昌新材料科技股份有限公司 | A kind of water base class solution filtering device of multi-level buffer |
| CN109200665A (en) * | 2018-11-01 | 2019-01-15 | 陈林飞 | A kind of filter of three-stage filtration formula |
| CN209092836U (en) * | 2018-10-30 | 2019-07-12 | 天津昭鑫电材科技有限公司 | A kind of high viscosity high molecular weight polyvinyl alcohol formal insulated paint multistage bag type filtering system |
-
2019
- 2019-10-30 CN CN201911078733.6A patent/CN110841362A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4013979A1 (en) * | 1989-07-17 | 1991-01-31 | Awatec Ag | Device for cleaning contaminated water - where water is treated with flocculating agent before being filtered in bag filter, to avoid clogging of filter pores |
| CN206350948U (en) * | 2016-12-22 | 2017-07-25 | 常熟世名化工科技有限公司 | Multilayer bag type filter |
| CN207418644U (en) * | 2017-10-26 | 2018-05-29 | 淄博三锐陶瓷科技有限公司 | Ceramic ink jet ink production system |
| CN207412927U (en) * | 2017-10-26 | 2018-05-29 | 淄博三锐陶瓷科技有限公司 | Ceramic ink filtration system |
| CN208340241U (en) * | 2018-04-12 | 2019-01-08 | 河南鑫昌新材料科技股份有限公司 | A kind of water base class solution filtering device of multi-level buffer |
| CN209092836U (en) * | 2018-10-30 | 2019-07-12 | 天津昭鑫电材科技有限公司 | A kind of high viscosity high molecular weight polyvinyl alcohol formal insulated paint multistage bag type filtering system |
| CN109200665A (en) * | 2018-11-01 | 2019-01-15 | 陈林飞 | A kind of filter of three-stage filtration formula |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200228 |