CN213475859U - Quick repair coating for blade of paddle stirrer - Google Patents
Quick repair coating for blade of paddle stirrer Download PDFInfo
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- CN213475859U CN213475859U CN202022573556.3U CN202022573556U CN213475859U CN 213475859 U CN213475859 U CN 213475859U CN 202022573556 U CN202022573556 U CN 202022573556U CN 213475859 U CN213475859 U CN 213475859U
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Abstract
The utility model provides a quick repair coating for paddle agitator blade, belongs to agitator blade surface repair technical field, can solve current local impaired agitator blade's repair method and waste time and energy, and adhesive strength is poor, the scheduling problem that easily drops, including epoxy priming paint layer and fast curing's carborundum repair paint layer, the epoxy priming paint layer is located paddle agitator blade surface, carborundum repair paint layer is located epoxy priming paint layer surface. The epoxy primer layer increases the bonding force between the silicon carbide repair paint layer and the metal substrate, and can effectively prevent the repair layer material from peeling off due to the scouring action of the liquid medium; the quick-curing silicon carbide repairing paint layer is composed of silicon carbide particles with different particle sizes, special quick-curing resin, reinforcing fibers and ceramic micro powder, the curing speed is high, a formed compact protective layer can effectively resist the scouring wear of a liquid medium, the wear resistance degree of the quick-curing silicon carbide repairing paint layer can be increased by more than 5 times compared with the wear resistance degree of the original alloy steel, and meanwhile, the quick-curing silicon carbide repairing paint layer has a good erosion resistance effect.
Description
Technical Field
The utility model belongs to the technical field of agitator blade surface repair, concretely relates to quick restoration coating for paddle agitator blade.
Background
The stirring device is a very important chemical production device, and the stirrer is used for preventing solid particles from precipitating in the slurry pool so as to ensure that the slurry can be uniformly conveyed to the next process. In fact, most materials in the containers of the stirring equipment can cause corrosion and abrasion to the metal blades of the stirrer to different degrees, and particularly, the tail ends of the stirring shaft blades are easy to cause local corrosion and damage due to phenomena such as erosion, cavitation and the like because of high linear speed, so that early failure occurs; the blade of local damage often can lead to the stirring inhomogeneous, and then causes the bottom solid particle deposit of tower, especially deposit at the entrance of pump, can lead to the cavitation of pump, and the damage and the pipeline that can cause the pump in the oar liquid entering pump of high concentration block up, lead to the workshop to be forced to shut down the production and change or repair, has caused very big economic loss for the enterprise.
Timely repair of such locally damaged leaves is necessary, and currently, common repair methods include: 1) the stirring shaft is taken out, and the spare stirring shaft or blade is replaced, so that the method has the advantages of time and labor waste and high cost in equipment disassembly, and has the advantages of high safety and reliability; (2) the taken out leaves are sent to a special anti-corrosion company for maintenance, and the method is characterized in that the production stop time is long, but the cost is relatively low; (3) the damaged part of the blade is locally repaired on site, and the method is characterized by high repairing speed and low cost; the defects are that the repair quality is unstable and the service life is short. The local rapid repair technology of the damaged blade is very limited, one example of the technology is that a matching system consisting of a rubber main material, a wear-resistant reinforcing agent and an anti-corrosion protection auxiliary agent is used for repairing the damaged blade, the rubber is used as the main material of the material, and the elastic modulus of the rubber and a metal base material is very different, so that the bonding strength of a coating and the metal base material is poor, and the coating is easy to fall off and fail.
Disclosure of Invention
The utility model discloses repair method to current local impaired stirring vane wastes time and energy, and the adhesion strength is poor, the scheduling problem easily drops, provides a repair coating fast for paddle agitator blade, and this repair coating not only can repair fast by the paddle agitator blade of wearing and tearing, and repair coating and paddle agitator blade have very high adhesion strength moreover, and the paddle agitator blade after the restoration can resist the erosive wear of stirring medium effectively. The utility model discloses the realization has reduced the maintenance and has changed the expense to quick restoration and the long-term protection on paddle agitator blade surface, has prolonged paddle agitator life, is particularly useful for the on-the-spot quick restoration of paddle agitator blades such as chemical production, sewage treatment and mining.
The utility model adopts the following technical scheme:
a quick repair coating for a paddle stirrer blade comprises an epoxy primer layer and a quick-curing silicon carbide repair paint layer, wherein the epoxy primer layer is located on the surface of the paddle stirrer blade, and the silicon carbide repair paint layer is located on the surface of the epoxy primer layer.
The thickness of the epoxy primer layer is 20-50 um.
The total thickness of the epoxy primer layer and the rapidly cured silicon carbide repair paint layer is the same as the depth of the to-be-repaired defect of the paddle type stirring blade.
The utility model has the advantages as follows:
the utility model discloses repair the coating fast and have following advantage: 1) the matched system of the epoxy primer layer and the rapidly cured silicon carbide repair paint layer is adopted, wherein the epoxy primer adopts the epoxy ceramic primer, so that the bonding force between the silicon carbide repair paint layer and the metal substrate is effectively increased, and the coating material can be prevented from being peeled off due to the scouring action of a liquid medium; the silicon carbide repair paint consists of silicon carbide particles with different particle sizes, special resin, reinforcing fibers and ceramic micro powder, the curing speed is high, the use strength can be achieved within about 1 hour, the mass content of the silicon carbide ceramic particles is more than or equal to 70%, the micro-nano silicon carbide ceramic particles are distributed in a grading manner, a compact protective layer can be formed, the repaired coating can resist the scouring wear of a medium, and the wear resistance of the repaired coating can be increased by more than 2 times compared with that of the original alloy steel. 2) The rapidly solidified silicon carbide refinishing paint is particularly suitable for repairing the equipment abrasion under the conditions of short stop time and emergency maintenance, the utility model greatly shortens the maintenance time, reduces the maintenance cost and conforms to the actual production of factories; 3) and the repairing and remanufacturing technology of the stirrer blade is enriched. Therefore, the protective coating matching system has the advantages of quick repair, simple operation, low cost and the like, realizes the quick repair of the blade surface of the paddle stirrer, and prolongs the service life.
Drawings
FIG. 1 is a schematic structural view of a coating according to the present invention;
wherein: 1-paddle stirrer blades; 2-an epoxy primer layer; 3-silicon carbide repair paint layer.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, a quick repair coating for a paddle stirrer blade includes an epoxy primer layer and a quick cure silicon carbide repair paint layer; polishing the damaged part of the blade of the paddle stirrer, directly coating the surface of the blade of the paddle stirrer with the epoxy primer, and coating the silicon carbide repair paint layer on the epoxy ceramic primer.
The epoxy primer adopts Siyi philosophy SYZO android ceramic primer (model: 33081); the quick-curing silicon carbide refinishing paint adopts Siyi-Zhen SYZO-Shizhao quick-curing small-particle silicon carbide refinishing paint (model: YH-015, 33091 or 33091) or Luoyang durable composite ceramic material (model: RJ-C-30).
The epoxy primer adopts a component A (white pasty solid), a curing agent (light yellow liquid) and a diluent, and the mixing mass ratio of the component A to the curing agent is (8-10): 1: (0-2), the rapidly cured silicon carbide refinishing paint adopts a component A (black paste solid) and a curing agent (white paste solid), and the mixing mass ratio of the component A to the curing agent is 5: 1.
the specific implementation process is as follows:
101) surface treatment: treating the paddle type stirrer blade to be repaired, removing a floating rust layer of the paddle type stirrer blade to be repaired by adopting a sand blasting method, wiping the surface by using alcohol, and removing dust and oil stains on the surface.
102) Coating an epoxy primer layer: and (3) adding 10 parts of component A (white pasty solid) and 1 part of curing agent (light yellow liquid) by balance into a container, stirring until the component A and the curing agent are completely mixed, brushing the primer on the surface of the blade in the step 101) by using a brush, and drying for 2 hours.
103) A step of coating a quick-curing silicon carbide repair paint layer: the preparation method comprises the following steps of weighing 5 parts of the component A (black paste solid) and 1 part of the curing agent (white paste solid) on a hard plate (or in a container), repeatedly stirring by using a scraper until the component A and the curing agent are completely mixed (the white paste solid disappears), coating the paint on the primer by using the scraper or manually, pressing and smearing the paint uniformly by using hands, and repeatedly scraping by using the scraper until the surface is smooth. For the area where the hanging plate is inconvenient to use, the small-particle silicon carbide refinishing paint can be directly pressed and covered on the position to be repaired by fingers with the half-finger rubber gloves.
And after the small-particle silicon carbide refinishing paint is completely cured, polishing the surface of the coating by using an angle grinder or a grinding wheel to flatten the surface.
And (3) performance testing:
1) part of performance indexes of the prepared quick repair coating are as follows:
TABLE 1 quick repair coating part Performance index
2) The prepared coating is tested by a coating sand falling abrasion resistance test (SY/T0315-97) and is not less than 4L/um.
In conclusion, the primer of the composite coating adopts the epoxy primer, so that the bonding force between the coating and the metal substrate of the blade is effectively increased, the coating material can be prevented from being peeled off due to the scouring action of the liquid medium, and the bonding strength between the primer layer and the bonding layer of the substrate is more than or equal to 18 MPa; the silicon carbide refinishing paint consists of silicon carbide particles with different particle sizes, special fast curing resin, reinforcing fibers and ceramic micro powder, the curing speed is high, the mass content of the silicon carbide ceramic particles is more than or equal to 70%, the micro-nano silicon carbide ceramic particles are distributed in a grading manner, a repaired coating can resist the scouring wear of a medium, the wear resistance degree of the repaired coating can be increased by about 2-5 times compared with the original alloy steel, and the silicon carbide refinishing paint has a good corrosion resistance effect. The coating matching system is particularly suitable for repairing the abrasion of equipment under the conditions of short shutdown time and emergency maintenance, greatly shortens the maintenance time, reduces the maintenance cost, accords with the actual production of a factory, and meets the urgent need of production. Therefore, the protective coating matching system has the advantages of quick repair, simple operation, low cost and the like, realizes the quick repair of the blade surface of the paddle stirrer, and prolongs the service life.
Claims (3)
1. A quick repair coating for a paddle mixer blade, characterized by: the quick-curing silicon carbide repair paint comprises an epoxy primer layer and a quick-curing silicon carbide repair paint layer, wherein the epoxy primer layer is positioned on the surface of a blade of a paddle stirrer, and the silicon carbide repair paint layer is positioned on the surface of the epoxy primer layer.
2. A quick repair coating for a paddle mixer blade according to claim 1, wherein: the thickness of the epoxy primer layer is 20-50 um.
3. A quick repair coating for a paddle mixer blade according to claim 1, wherein: the total thickness of the epoxy primer layer and the rapidly cured silicon carbide repair paint layer is the same as the depth of the to-be-repaired defect of the blade of the paddle stirrer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022573556.3U CN213475859U (en) | 2020-11-10 | 2020-11-10 | Quick repair coating for blade of paddle stirrer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022573556.3U CN213475859U (en) | 2020-11-10 | 2020-11-10 | Quick repair coating for blade of paddle stirrer |
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| Publication Number | Publication Date |
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| CN213475859U true CN213475859U (en) | 2021-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022573556.3U Active CN213475859U (en) | 2020-11-10 | 2020-11-10 | Quick repair coating for blade of paddle stirrer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114437619A (en) * | 2022-04-04 | 2022-05-06 | 河北大唐国际王滩发电有限责任公司 | Silicon carbide wear-resistant paint for repairing and protecting overcurrent component |
-
2020
- 2020-11-10 CN CN202022573556.3U patent/CN213475859U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114437619A (en) * | 2022-04-04 | 2022-05-06 | 河北大唐国际王滩发电有限责任公司 | Silicon carbide wear-resistant paint for repairing and protecting overcurrent component |
| CN114437619B (en) * | 2022-04-04 | 2022-06-21 | 河北大唐国际王滩发电有限责任公司 | Silicon carbide wear-resistant paint for repairing and protecting overcurrent component |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230110 Address after: Building 8, No. 18, Xingye East Road, Xiepu Town, Zhenhai District, Ningbo City, Zhejiang Province, 315000 Patentee after: NINGBO SIYIZHE NEW MATERIAL TECHNOLOGY Co.,Ltd. Address before: 037009 No. 405 Xingyun Street, Datong City, Shanxi Province Patentee before: SHANXI DATONG University |
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| TR01 | Transfer of patent right |