CN215517200U - Anticorrosive coating - Google Patents
Anticorrosive coating Download PDFInfo
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- CN215517200U CN215517200U CN202121903970.4U CN202121903970U CN215517200U CN 215517200 U CN215517200 U CN 215517200U CN 202121903970 U CN202121903970 U CN 202121903970U CN 215517200 U CN215517200 U CN 215517200U
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Abstract
The utility model discloses an anticorrosive coating, which relates to the technical field of sewage treatment and comprises the following components: the self-repairing cement-based paint comprises a cement-based paint layer, an epoxy resin layer and an epoxy mortar layer, wherein the cement-based paint layer is made of a self-repairing material and is coated on the inner wall of a pipeline or a sewage pool, the epoxy resin layer is used for coating on the self-repairing cement-based paint layer after water spraying maintenance is carried out, and the epoxy mortar layer is used for coating on the epoxy resin layer which is not cured on the pipeline or the sewage pool; the epoxy mortar layer has the performances of impermeability, frost resistance, salt resistance, alkali resistance and weak acid corrosion resistance, so the scheme provided by the utility model can prolong the service life of the sewage pool and the sewage pipeline.
Description
Technical Field
The utility model relates to the technical field of sewage treatment, in particular to an anticorrosive coating.
Background
The country attaches great importance to environmental protection, attaches great importance to the treatment of domestic sewage and industrial wastewater, invests a great deal of capital to build sewage treatment plants, lay and build a great deal of sewage conveying pipelines; the existing pipeline and the sewage tank are both formed by pouring common concrete, when the alkaline or acidic industrial wastewater is conveyed and stored, the industrial wastewater can corrode the pipeline and the sewage tank, the sewage tank with corroded back on the ground is easy to repair, but the underground pipeline is extremely difficult to repair, and the cost is high.
Scientific research shows that the main reasons for corrosion of the sewage pipeline and the sewage treatment tank are two, namely, the common concrete has weak corrosion resistance, the common waste water is weakly acidic, has a certain corrosion effect on the concrete, is long in time and gradually corrodes after being accumulated for a long time; secondly, certain fungi are bred above the pipeline and the sewage tank, the fungi can absorb hydrogen sulfide gas to generate sulfuric acid, and the sulfuric acid has stronger corrosivity, so that the sewage tank and the pipeline are corroded; with the continuous development of urban construction, a large number of sewage treatment plants are still built, a large number of sewage conveying pipelines are still built, and the construction of the traditional scheme is still used; in order to prevent the recurrence of the former corrosion phenomenon, a solution is needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an anticorrosive layer to solve the problems in the prior art and prolong the service life of a sewage pool and a sewage pipeline.
In order to achieve the purpose, the utility model provides the following scheme:
the utility model provides an anticorrosive coating, comprising: the self-repairing cement-based paint comprises a self-repairing cement-based paint layer, an epoxy resin layer and an epoxy mortar layer, wherein the self-repairing cement-based paint layer is used for coating on the inner wall of a pipeline or a sewage tank, the epoxy resin layer is used for coating on the self-repairing cement-based paint layer after water spraying maintenance is well carried out, and the epoxy mortar layer is coated on the epoxy resin layer which is not cured on the pipeline or the sewage tank.
Preferably, the thickness of the epoxy mortar layer is 5 mm-10 mm.
Compared with the prior art, the utility model has the following technical effects:
the utility model provides an anticorrosive coating, comprising: the sewage treatment method comprises the following steps of coating a self-repairing cement-based coating layer on the inner wall of a sewage pipeline or a sewage pool, wherein the self-repairing cement-based coating layer, an epoxy resin layer and an epoxy mortar layer, wherein after the self-repairing cement-based coating layer is coated, the coating can seal gaps on the surface of concrete; on the other hand, the self-healing material in the concrete can enter the inner gap of the concrete through Brownian motion, and can excite silicate which does not have hydration reaction in the concrete to react quickly after meeting water to generate crystallization, so that the surface of the concrete is compact, and a channel for the bacillus sulfate to enter the concrete is sealed; the epoxy resin layer can be used as a binder to coat the epoxy mortar layer on the inner wall of the sewage pipeline or the sewage pool, and the epoxy mortar layer has the performances of impermeability, frost resistance, salt resistance, alkali resistance and weak acid corrosion resistance, so the scheme provided by the utility model can prolong the service life of the sewage pool and the sewage pipeline.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural view of an anticorrosive coating applied to the inner wall of a sewage tank;
in the figure: 1-sewage pool, 2-self-repairing cement-based coating layer, 3-epoxy resin layer and 4-epoxy mortar layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 utility model aims to provide an anticorrosive layer to solve the problems in the prior art, and the scheme provided by the utility model can prolong the service life of a sewage pool and a sewage pipeline.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The present invention provides an anticorrosive layer, as shown in fig. 1, comprising: the self-repairing cement-based paint comprises a self-repairing cement-based paint layer 2, an epoxy resin layer 3 and an epoxy mortar layer 4, wherein the self-repairing cement-based paint layer 2 is used for coating the inner wall of a pipeline or a sewage pool 1, the epoxy resin layer 3 is used for coating the self-repairing cement-based paint layer 2 after water spraying maintenance is carried out, and the epoxy mortar layer 4 is used for coating the epoxy resin layer 3 which is not solidified on the pipeline or the sewage pool 1; in the coating process of the self-repairing cement-based coating layer 2, on one hand, the self-repairing cement-based coating layer 2 can seal gaps on the surface of concrete; on the other hand, the self-healing material in the concrete can enter the inner gap of the concrete through Brownian motion, and can excite silicate which does not have hydration reaction in the concrete to react quickly after meeting water to generate crystallization, so that the surface of the concrete is compact, and a channel for the bacillus sulfate to enter the concrete is sealed. In addition, the epoxy resin layer 3 can be used as a binder to coat the epoxy mortar layer 4 on the inner wall of the sewage pipeline or the sewage pool; the epoxy mortar layer has the performances of impermeability, frost resistance, salt resistance, alkali resistance and weak acid corrosion resistance, so the scheme provided by the utility model can prolong the service life of the sewage pool and the sewage pipeline.
Further, the thickness of the epoxy mortar layer 4 is 5mm to 10mm, preferably 10 mm.
The construction method for coating the anticorrosive layer on the inner wall of the sewage pool or the pipeline comprises the following steps:
coating a self-repairing cement-based coating layer 2 on the inner wall of a sewage pipeline or a sewage pool 1;
step two, after the self-repairing cement-based coating layer 2 is well maintained by spraying water, coating an epoxy resin layer 3 on the self-repairing cement-based coating layer;
step three, before the epoxy resin layer 3 is cured, coating a layer of epoxy mortar layer 4 on the epoxy resin layer 3;
in the coating process in the step one, on one hand, the self-repairing cement-based coating layer 2 can seal the gap on the surface of the concrete; on the other hand, the self-healing material in the concrete can enter the inner gap of the concrete through Brownian motion, and can excite silicate which does not have hydration reaction in the concrete to react quickly after meeting water to generate crystallization, so that the surface of the concrete is compact, and a channel for the bacillus sulfate to enter the concrete is sealed; the epoxy resin layer 3 can be used as a binder to coat the epoxy mortar layer 4 on the inner wall of the sewage pipeline or the sewage pool 1; the epoxy mortar layer 4 has the performances of impermeability, frost resistance, salt resistance, alkali resistance and weak acid corrosion resistance, so the scheme provided by the utility model can prolong the service life of the sewage tank 1 and the sewage pipeline.
Further, the thickness of the epoxy mortar layer 4 is 5mm to 10mm, preferably 10 mm.
Further, the coating in the step one is machine spraying or manual brushing, the manual brushing is carried out by holding the brush by a worker, and the machine spraying is carried out by holding a special spraying tool by the worker.
Further, in order to ensure that the anticorrosive coating is durable, the newly-built pipeline and the inner wall of the sewage tank 1 need to be cleaned in advance before the self-repairing cement-based coating layer 2 is coated in the step one; the cleaning process comprises the following steps: s1: because the newly built pipeline and the surface of the sewage pool 1 may have convex concrete slag due to casting flaws, the newly built pipeline and the convex concrete on the inner wall of the sewage pool 1 need to be chiseled; s2: repairing the cracked and damaged positions; s3: cleaning the surface by using a high-pressure water gun, and washing away residual stains on the inner wall; and after the inner wall is dried, the self-repairing cement-based coating layer 2 is coated, and the self-repairing cement-based coating layer 2 coated on the clean and dry concrete can be firmly adhered to the concrete.
Further, in the second step, an epoxy resin layer 3 is coated on the self-repairing cement-based coating layer 2 by adopting an artificial painting method.
Further, in the third step, an epoxy mortar layer 4 is coated on the epoxy resin layer 3 by adopting an artificial painting method.
The principle and the implementation mode of the utility model are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the utility model; 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 view of the above, the present disclosure should not be construed as limiting the utility model.
Claims (2)
1. An anticorrosive coating characterized in that: the method comprises the following steps: the self-repairing cement-based paint comprises a self-repairing cement-based paint layer, an epoxy resin layer and an epoxy mortar layer, wherein the self-repairing cement-based paint layer is used for coating on the inner wall of a pipeline or a sewage tank, the epoxy resin layer is used for coating on the self-repairing cement-based paint layer after water spraying maintenance is well carried out, and the epoxy mortar layer is coated on the epoxy resin layer which is not cured on the pipeline or the sewage tank.
2. The corrosion protection layer of claim 1, wherein: the thickness of the epoxy mortar layer is 5 mm-10 mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121903970.4U CN215517200U (en) | 2021-08-13 | 2021-08-13 | Anticorrosive coating |
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| CN202121903970.4U CN215517200U (en) | 2021-08-13 | 2021-08-13 | Anticorrosive coating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113603507A (en) * | 2021-08-13 | 2021-11-05 | 上海申继交通科技有限公司 | Anticorrosive coating construction method and anticorrosive coating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113603507A (en) * | 2021-08-13 | 2021-11-05 | 上海申继交通科技有限公司 | Anticorrosive coating construction method and anticorrosive coating |
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