Heavy-duty anti-corrosion lining of photocuring flue gas desulfurization (FGD) system

Abstract

The utility model discloses a heavy anti-corrosion lining of a photocuring flue gas desulfurization (FGD) system, and particularly relates to the field of anti-corrosion materials. The utility model provides a photocuring flue gas desulfurization FGD system heavy anti-corrosion lining, which comprises a bottom coating, an anti-corrosion lining, a photocuring layer and a sealing coating, the anti-corrosion lining is arranged on the bottom coating, the anti-corrosion lining comprises a plurality of lining bodies, the plurality of lining bodies are connected with each other, a splicing device is arranged between the adjacent lining bodies, and the photocuring layer is arranged on the sealing coating. A limiting device is arranged on the splicing device, the photocuring layer is arranged on the anti-corrosion lining, and the sealing coating is arranged on the photocuring layer.

Description

Technical Field

[0001] The utility model relates to the field of anticorrosion materials, and particularly to a heavy anticorrosion lining for a photocuring flue gas desulfurization (FGD) system. Background Art

[0002] The flue gas desulfurization (FGD) system is a technology used to reduce the emission of sulfur dioxide (SO2) in the flue gas of coal-fired power plants. With the continuous strengthening of the national environmental protection enforcement, coal-fired power plants are all required to build desulfurization facilities to reduce the pollution of flue gas emissions to the atmospheric environment. Since the sulfur-containing flue gas is corrosive, it is necessary to carry out anticorrosion treatment on the desulfurization tower, chimney inner wall, etc. in the flue gas desulfurization (FGD) system to extend its service life and ensure its safe and stable operation. The existing flue gas desulfurization (FGD) systems generally use glass flake mortar, vulcanized rubber sheets or fiberglass lining for anticorrosion. Among them, the glass flake mortar needs to be formulated on-site and then applied manually. Due to the high viscosity of the product, it is difficult to stir and mix the main agent and the curing agent evenly, which is likely to cause poor curing in local areas or at points, and is also likely to cause pitting corrosion and bulging, and then spread to form large-area cracking, peeling and falling off; the construction of vulcanized rubber sheets is difficult, and it is easy to form bubbles during the construction process. The joints of vulcanized rubber sheets are easy to be torn and separated. At the same time, the joints are also the weakest part of the anticorrosion of vulcanized rubber sheets. Generally, after using for a period of time, small-area bubbling and peeling begin to appear at the joints and the poorly constructed parts of vulcanized rubber sheets, resulting in equipment corrosion and perforation. And once the lining layer is damaged, it is difficult to clean and repair; the vinyl resin used in fiberglass generally has difficulty in resisting the complex corrosive medium for a long time, and various corrosive ions in the medium are easy to penetrate through the cross-linked network of fiberglass, resulting in "rust return" of the base material, causing the anticorrosion lining layer to fall off, peel, swell and crack. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the above technical problems and provide a heavy anticorrosion lining for a photocuring flue gas desulfurization (FGD) system.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a heavy anticorrosion lining for a photocuring flue gas desulfurization (FGD) system, including a primer layer, an anticorrosion inner lining, a photocuring layer, and a sealing coating. The anticorrosion inner lining is arranged on the primer layer. The anticorrosion inner lining includes a plurality of inner lining bodies, and the plurality of inner lining bodies are connected to each other. A splicing device is arranged between adjacent inner lining bodies, and a limiting device is arranged on the splicing device. The photocuring layer is arranged on the anticorrosion inner lining, and the sealing coating is arranged on the photocuring layer.

[0005] Furthermore, the splicing device includes a connecting mechanism and a clamping mechanism. The connecting mechanism is arranged between adjacent inner lining bodies, and the clamping mechanism is arranged on the connecting mechanism.

[0006] Further, the connecting mechanism includes a connecting bump and a connecting groove. The connecting bump is disposed on one of the lining bodies, and the connecting groove is disposed on an adjacent lining body. The connecting bump is installed in the connecting groove.

[0007] Further, the positioning mechanism includes a clamping bump and a clamping groove. The clamping bump is disposed on the side wall of the connecting groove, and the clamping groove is disposed on the side wall of the connecting bump. Wherein, after the connecting bump is inserted into the connecting groove, the clamping bump is clamped in the clamping groove.

[0008] Further, the limiting device includes a limiting block and a limiting groove. The limiting block is disposed at the bottom of the connecting groove, and the limiting groove is disposed on the end face of the connecting bump. The limiting block is installed in the limiting groove.

[0009] Further, the photocuring layer is made of photocuring nano-sheets.

[0010] Further, the anticorrosive lining is a stainless steel plate.

[0011] Further, the thickness of the anticorrosive lining is 2 - 2.6 mm.

[0012] Further, it further includes connecting perforations and connecting screws. The connecting perforations are disposed at the four corner positions of the lining body, and the connecting screws are inserted through the connecting perforations.

[0013] As can be seen from the above description of the present invention, compared with the prior art, a photocuring flue gas desulfurization (FGD) system heavy anticorrosive lining provided by the present invention has the following advantages: It is provided with a bottom coating, and an anticorrosive lining is provided on the bottom coating. The anticorrosive lining includes multiple lining bodies, and the multiple lining bodies are connected to each other. A splicing device is provided between adjacent lining bodies. The splicing device is used to connect adjacent lining bodies together and prevent corrosive media from penetrating through the connection gap between the two lining bodies. A limiting device is provided on the splicing device. The limiting device is used to prevent relative displacement between the two lining bodies. A photocuring layer is provided on the anticorrosive lining. The photocuring layer is made of photocuring nano-sheets. The photocuring nano-sheets can be quickly cross-linked and cured on the anticorrosive lining under sunlight or ultraviolet light, greatly reducing the construction time and construction difficulty. And after curing, it can form a high-strength, high-adhesion, high-temperature-resistant, seamless and sealed anticorrosive and flame-retardant insulating sheath layer. At the same time, a sealing coating is provided on the photocuring layer, which can further enhance the sealing performance. Therefore, through the multiple protections of the bottom coating, the anticorrosive lining, the photocuring layer and the sealing coating, the corrosion resistance and the corrosion medium penetration resistance of the flue gas desulfurization (FGD) system can be improved, and thus the service life of the flue gas desulfurization (FGD) system can be prolonged. Description of the Drawings

[0014] Figure 1 This is a cross-sectional view of the heavy-duty anti-corrosion lining of the photo-curing flue gas desulfurization (FGD) system of the present utility model.

[0015] Figure 2 This is a schematic structural diagram of the splicing device. Specific embodiments

[0016] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0017] Refer to Figure 1 - Figure 2 As shown, a heavy-duty anti-corrosion lining for a photo-curing flue gas desulfurization (FGD) system includes a bottom coating 1, an anti-corrosion inner lining 2, a photo-curing layer 3, and a sealing coating 4. The anti-corrosion inner lining 2 is disposed on the bottom coating 1. The anti-corrosion inner lining 2 includes a plurality of inner lining bodies 21. The plurality of inner lining bodies 21 are connected to each other. A splicing device 5 is provided between adjacent inner lining bodies 21. The splicing device 5 is used to connect adjacent inner lining bodies 21 together and prevent corrosive media from penetrating through the connection gap between the two inner lining bodies 21. A limiting device 6 is provided on the splicing device 5. The limiting device 6 is used to prevent relative displacement between the two inner lining bodies 21. The photo-curing layer 3 is disposed on the anti-corrosion inner lining 2. The sealing coating 4 is disposed on the photo-curing layer 3.

[0018] Specifically, the photo-curing layer 3 is made of photo-curing nano-sheets. The photo-curing nano-sheets can be quickly cross-linked and cured on the anti-corrosion inner lining 2 under sunlight or ultraviolet light, greatly reducing the construction time and construction difficulty. After curing, a high-strength, high-adhesion, high-temperature-resistant, seamless and sealed anti-corrosion and flame-retardant insulation sheath layer can be formed. At the same time, the sealing coating 4 can further enhance the sealing performance of the photo-curing layer 3. Therefore, through the multiple protections of the bottom coating 1, the anti-corrosion inner lining 2, the photo-curing layer 3, and the sealing coating 4, the anti-corrosion performance and the anti-corrosive media penetration performance of the flue gas desulfurization (FGD) system can be improved, and thus the service life of the flue gas desulfurization (FGD) system can be extended.

[0019] The splicing device 5 includes a connecting mechanism 51 and a clamping mechanism 52. The connecting mechanism 51 is disposed between adjacent inner lining bodies 21. The clamping mechanism 52 is disposed on the connecting mechanism 51.

[0020] The connecting mechanism 51 includes a connecting bump 511 and a connecting groove 512. The connecting bump 511 is provided on one of the inner lining bodies 21, and the connecting groove 512 is provided on the adjacent inner lining body 21. The connecting bump 511 is installed in the connecting groove 512.

[0021] The clamping mechanism 52 includes a clamping bump 521 and a clamping groove 522. The clamping bump 521 is provided on the side wall of the connecting groove 512, and the clamping groove 522 is provided on the side wall of the connecting bump 511. Wherein, after the connecting bump 511 is inserted into the connecting groove 512, the clamping bump 521 is clamped in the clamping groove 522 to prevent the connecting bump 511 from detaching from the connecting groove 512.

[0022] The limiting device 6 includes a limiting block 61 and a limiting groove 62. The limiting block 61 is provided at the bottom of the connecting groove 512, and the limiting groove 62 is provided on the end face of the connecting bump 511. The limiting block 61 is installed in the limiting groove 62.

[0023] The anti-corrosion inner lining 2 is a stainless steel plate.

[0024] The thickness of the anti-corrosion inner lining 2 is 2 - 2.6 mm.

[0025] The thickness of the photocuring layer 3 is 1.8 - 2.4 mm.

[0026] The bottom coating 1 is made of the nano bottom coating 8241A of Shishi Huabao New Material Engineering Co., Ltd.

[0027] The photocuring layer 3 is made of the photocuring nano sheet 9130 of Shishi Huabao New Material Engineering Co., Ltd.

[0028] The sealing coating 4 is made of the nano sealing coating 8244 - 05 of Shishi Huabao New Material Engineering Co., Ltd.

[0029] The connecting perforations 211 are provided at the four corner positions of the inner lining body 21, and connecting screws 7 are provided in the connecting perforations 211. The anti-corrosion inner lining 2 is fixed on the area to be anti-corrosion 8 through the connecting screws 7.

[0030] The above are only several specific embodiments of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantive modification made to the present invention using this concept shall fall within the scope of infringement of the protection scope of the present invention.

Claims

1. A heavy-duty anti-corrosion lining for a photocuring flue gas desulfurization (FGD) system, characterized in that: It includes a bottom coating, an anti-corrosion inner lining, a photocuring layer, and a sealing coating. The anti-corrosion inner lining is disposed on the bottom coating. The anti-corrosion inner lining includes multiple inner lining bodies. The multiple inner lining bodies are connected to each other. A splicing device is provided between adjacent inner lining bodies. A limiting device is provided on the splicing device. The photocuring layer is disposed on the anti-corrosion inner lining. The sealing coating is disposed on the photocuring layer.

2. The heavy-duty anti-corrosion lining of the photo-curing flue gas desulfurization (FGD) system according to claim 1, wherein: The splicing device includes a connecting mechanism and a clamping mechanism. The connecting mechanism is disposed between adjacent inner lining bodies. The clamping mechanism is disposed on the connecting mechanism.

3. The heavy anti-corrosion lining of the photo-curing flue gas desulfurization (FGD) system according to claim 2, characterized in that: The connecting mechanism includes a connecting convex block and a connecting groove. The connecting convex block is disposed on one of the inner lining bodies. The connecting groove is disposed on the adjacent inner lining body. The connecting convex block is installed in the connecting groove.

4. The heavy anti-corrosion lining of the photo-curing flue gas desulfurization (FGD) system according to claim 3, wherein: The clamping mechanism includes a clamping convex block and a clamping groove. The clamping convex block is disposed on the side wall of the connecting groove. The clamping groove is disposed on the side wall of the connecting convex block. Wherein, after the connecting convex block is inserted into the connecting groove, the clamping convex block is clamped in the clamping groove.

5. The heavy-duty anti-corrosion lining of the photo-curing flue gas desulfurization (FGD) system according to claim 4, wherein: The limiting device includes a limiting block and a limiting groove. The limiting block is disposed at the bottom of the connecting groove. The limiting groove is disposed on the end face of the connecting convex block. The limiting block is installed in the limiting groove.

6. The heavy anti-corrosion lining of the photocuring flue gas desulfurization (FGD) system according to claim 5, characterized in that: The photocuring layer is made of photocuring nano-sheets.

7. The heavy anti-corrosion lining of the photo-curing flue gas desulfurization (FGD) system according to claim 6, wherein: The anti-corrosion inner lining is a stainless steel plate.

8. The heavy anti-corrosion lining of the photo-curing flue gas desulfurization (FGD) system according to claim 7, characterized in that: The thickness of the anti-corrosion inner lining is 2 - 2.6 mm.

9. The heavy anti-corrosion lining of the photo-curing flue gas desulfurization (FGD) system according to claim 8, wherein: It further includes connecting perforations and connecting screws. The connecting perforations are disposed at the four corner positions of the inner lining body. The connecting screws are inserted through the connecting perforations.

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