A flue gas desulfurization tower lining anticorrosion structure

Abstract

The utility model provides a kind of flue gas desulfurization tower lining anticorrosion structure, including tower body and anticorrosion lining, the anticorrosion lining includes first anticorrosion cylinder, second anticorrosion cylinder and third anticorrosion cylinder. Through the cooperation of fixing ring, positioning rod and slot, it is convenient to position and install first splice plate, second splice plate and third splice plate, and splice into first anticorrosion cylinder, second anticorrosion cylinder and third anticorrosion cylinder, through the cooperation of first anticorrosion layer, first anticorrosion cylinder, second anticorrosion cylinder, third anticorrosion cylinder and second anticorrosion layer, the anticorrosion ability of the structure can be improved;Through the up-and-down splicing of first splice plate, second splice plate and third splice plate, it is convenient to guide desulfurizer and flue gas, prevent flue gas from escaping along the inner wall of tower body, and there is also no dead angle to affect the flow of flue gas, convenient to fully desulfurize flue gas, can improve the desulfurization effect of the structure, and high practicability.

Description

Technical Field

[0001] This utility model relates to the field of anti-corrosion technology for flue gas desulfurization tower linings, specifically an anti-corrosion structure for flue gas desulfurization tower linings. Background Technology

[0002] Wet flue gas desulfurization involves spraying a desulfurizing agent into a flue gas desulfurization tower, allowing the flue gas to come into full contact with the desulfurizing agent, thereby absorbing sulfur-containing substances in the flue gas and thus desulfurizing the flue gas.

[0003] Chinese utility model patent CN209490806U discloses a corrosion-resistant and wear-resistant lining for a flue gas desulfurization absorption tower, comprising a metal tower wall and a spray device. The metal tower wall and the spray device are adapted to each other. A corrosion-resistant layer is provided on the side of the metal tower wall near the spray device, and one side of the corrosion-resistant layer is fixedly connected to the metal tower wall. A corrosion-resistant and wear-resistant lining is provided on the other side of the corrosion-resistant layer. The corrosion-resistant lining has a connecting part and a flow guiding part, and the connecting part is fixedly connected to the corrosion-resistant layer. An angle is left between the flow guide and the anti-corrosion layer of the tower wall. By setting the anti-corrosion and wear-resistant lining, the phenomenon of flue gas "escaping" along the inner wall of the absorption tower is avoided, ensuring the flue gas desulfurization efficiency of the entire desulfurization unit while avoiding the erosion of the anti-corrosion layer of the tower wall by corrosive gas and liquid, thus protecting the absorption tower. However, because there is an angle between the flow guide and the anti-corrosion layer of the tower wall, the flue gas flowing from bottom to top is easily blocked between the angle between the flow guide and the anti-corrosion layer of the tower wall, and cannot flow upward, affecting the desulfurization effect of the flue gas and reducing the practicality of this anti-corrosion lining.

[0004] Therefore, this utility model provides a corrosion-resistant structure for the lining of a flue gas desulfurization tower. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a corrosion-resistant lining structure for a flue gas desulfurization tower, thereby solving the problems mentioned in the background section. This invention, through the vertical splicing of a first, second, and third splicing plate, facilitates the guidance of the desulfurizing agent and flue gas, preventing the flue gas from escaping along the inner wall of the tower. It also eliminates dead zones that could hinder flue gas flow, facilitating thorough desulfurization and improving the desulfurization effect of the structure, making it highly practical.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a corrosion-resistant structure for the lining of a flue gas desulfurization tower, comprising a tower body and a corrosion-resistant lining. The corrosion-resistant lining includes a first corrosion-resistant cylinder, a second corrosion-resistant cylinder, and a third corrosion-resistant cylinder. The first, second, and third corrosion-resistant cylinders are installed on the inner wall of the lower end of the tower body via a fixing ring and a positioning mechanism. The fixing ring is fixedly installed on the inner wall of the tower body. The positioning mechanism includes a positioning rod and a slot. The slots are symmetrically opened on the four inner sides of the top and bottom ends of the fixing ring. The first, second, and third corrosion-resistant cylinders are respectively formed by circular splicing of a first splicing plate, a second splicing plate, and a third splicing plate. The positioning rod is fixedly installed at the bottom end of the first splicing plate, the top and bottom ends of the second splicing plate, and the top end of the third splicing plate.

[0007] Furthermore, the inner wall of the tower body is coated with a first anti-corrosion layer, which is a glass flake resin layer.

[0008] Furthermore, the first splicing plate, the second splicing plate, and the third splicing plate are bonded and fixedly installed on the outside of the first anti-corrosion layer, and the first splicing plate, the second splicing plate, and the third splicing plate are spliced ​​and installed sequentially from top to bottom.

[0009] Furthermore, the top and bottom ends of the first splicing plate, the second splicing plate, and the top end of the third splicing plate all protrude towards their axis, and the first splicing plate, the second splicing plate, and the third splicing plate are bonded together by glass flake resin.

[0010] Furthermore, the first splicing plate is bonded to the first splicing plate, the second splicing plate and the second splicing plate, and the third splicing plate and the third splicing plate by sealing the gaps with glass flake resin, and a second anti-corrosion layer is provided on the inner wall of the first splicing plate, the second splicing plate and the third splicing plate.

[0011] Furthermore, the second anti-corrosion layer is a composite anti-corrosion layer of fiberglass cloth and epoxy resin, and the first splicing plate, the second splicing plate and the third splicing plate are arc-shaped polypropylene high-molecular material anti-corrosion plates.

[0012] Furthermore, a spray layer is provided laterally inside the upper end of the tower body, and the nozzles on the spray layer are located inside the top of the first anti-corrosion cylinder.

[0013] Furthermore, the positioning rod is inserted and installed inside the slot. An installation groove is opened inside one end of the positioning rod. A locking rod is slidably installed inside the installation groove. A spring is fixedly installed between the inner end of the locking rod and the inner wall of the installation groove. The top and bottom of the outer end of the locking rod are provided with inclined surfaces.

[0014] The beneficial effects of this utility model are as follows: The anti-corrosion structure for the inner lining of a flue gas desulfurization tower, through the cooperation of a fixing ring, positioning rod, and slot, facilitates the positioning and installation of the first, second, and third splicing plates, simultaneously forming a first, second, and third anti-corrosion cylinder. The cooperation of the first anti-corrosion layer, the first anti-corrosion cylinder, the second anti-corrosion cylinder, the third anti-corrosion cylinder, and the second anti-corrosion layer enhances the structure's corrosion resistance. The vertical splicing of the first, second, and third splicing plates facilitates the guidance of the desulfurizing agent and flue gas, preventing flue gas from escaping along the inner wall of the tower and eliminating dead zones that could affect flue gas flow. This ensures thorough desulfurization of the flue gas, improves the desulfurization effect of the structure, and makes it highly practical. Attached Figure Description

[0015] Figure 1 This is a structural diagram of an anti-corrosion lining structure for a flue gas desulfurization tower according to the present invention;

[0016] Figure 2 This is a front cross-sectional view of an anti-corrosion lining structure for a flue gas desulfurization tower according to this utility model.

[0017] Figure 3 This utility model relates to an anti-corrosion structure for the lining of a flue gas desulfurization tower. Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is a structural diagram of the lining assembly of a flue gas desulfurization tower anti-corrosion structure according to the present invention.

[0019] Figure 5 This is a structural diagram of the fixing ring of the anti-corrosion structure of the flue gas desulfurization tower lining according to the present invention;

[0020] Figure 6 This is a structural diagram of the first splicing plate of the anti-corrosion lining structure of a flue gas desulfurization tower according to the present invention.

[0021] Figure 7 This is a structural diagram of the second splicing plate of the anti-corrosion lining structure of a flue gas desulfurization tower according to the present invention;

[0022] Figure 8 This is a structural diagram of the third splicing plate of the anti-corrosion lining structure of a flue gas desulfurization tower according to this utility model;

[0023] Figure 9 This is a structural diagram of a positioning rod for an anti-corrosion lining structure of a flue gas desulfurization tower according to the present invention.

[0024] In the diagram: 1. Tower body; 2. First anti-corrosion layer; 3. Fixing ring; 4. Positioning mechanism; 5. First anti-corrosion cylinder; 6. Second anti-corrosion cylinder; 7. Third anti-corrosion cylinder; 8. Second anti-corrosion layer; 9. Spray layer; 10. Positioning rod; 11. First splicing plate; 12. Second splicing plate; 13. Third splicing plate; 14. Clamping rod. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] Please see Figures 1 to 9 This utility model provides a technical solution: a corrosion-resistant structure for the inner lining of a flue gas desulfurization tower, comprising a tower body 1 and a corrosion-resistant lining. The corrosion-resistant lining includes a first corrosion-resistant cylinder 5, a second corrosion-resistant cylinder 6, and a third corrosion-resistant cylinder 7. The first corrosion-resistant cylinder 5, the second corrosion-resistant cylinder 6, and the third corrosion-resistant cylinder 7 are installed on the inner wall of the lower end of the tower body 1 by means of a fixing ring 3 and a positioning mechanism 4. The fixing ring 3 is fixedly installed on the inner wall of the tower body 1. The positioning mechanism 4 includes a positioning rod 10 and slots. The slots are symmetrically opened on the four inner sides of the top and bottom ends of the fixing ring 3. The first corrosion-resistant cylinder 5, the second corrosion-resistant cylinder 6... The first and third anti-corrosion cylinders 7 are respectively formed by circular splicing of the first splicing plate 11, the second splicing plate 12, and the third splicing plate 13. The positioning rod 10 is fixedly installed at the bottom of the first splicing plate 11, the top and bottom of the second splicing plate 12, and the top of the third splicing plate 13. The vertical splicing of the first splicing plate 11, the second splicing plate 12, and the third splicing plate 13 facilitates the guidance of the desulfurizing agent and flue gas, prevents the flue gas from escaping along the inner wall of the tower body 1, and avoids dead corners that affect the flow of flue gas, thus facilitating sufficient desulfurization of the flue gas and improving the desulfurization effect of the structure.

[0027] In this embodiment, the inner wall of the tower body 1 is coated with a first anti-corrosion layer 2, which is a glass flake resin layer. The first splicing plate 11, the second splicing plate 12, and the third splicing plate 13 are bonded and fixedly installed on the outside of the first anti-corrosion layer 2. The first splicing plate 11, the second splicing plate 12, and the third splicing plate 13 are spliced ​​and installed sequentially from top to bottom. The top and bottom ends of the first splicing plate 11 and the second splicing plate 12, as well as the top end of the third splicing plate 13, all protrude towards their axial direction. The first splicing plate 11, the second splicing plate 12, and the third splicing plate 13 are sealed and bonded together with glass flake resin. The first splicing plate 11 is bonded to the first splicing plate 11, the second splicing plate 12, and the third splicing plate 13 is bonded to the third splicing plate 13. The joints 11, 12, and 13 are sealed and bonded with glass flake resin. A second anti-corrosion layer 8 is provided on the inner wall of the first splicing plate 11, the second splicing plate 12, and the third splicing plate 13. The second anti-corrosion layer 8 is a composite anti-corrosion layer of glass fiber cloth and epoxy resin. The first splicing plate 11, the second splicing plate 12, and the third splicing plate 13 are arc-shaped polypropylene high-molecular-weight anti-corrosion plates. Through the cooperation of the first splicing plate 11, the second splicing plate 12, and the third splicing plate 13, the flue gas and desulfurizing agent can be backflowed, which facilitates the subsequent full contact between the flue gas and the desulfurizing agent. Furthermore, the cooperation of the first anti-corrosion layer 2, the second anti-corrosion layer 8, and the first splicing plate 11, the second splicing plate 12, and the third splicing plate 13 can improve the anti-corrosion capability of the structure, thereby increasing the service life of the flue gas desulfurization tower.

[0028] In this embodiment, a spray layer 9 is horizontally arranged inside the upper end of the tower body 1. The nozzles on the spray layer 9 are located inside the top of the first anti-corrosion cylinder 5, which can prevent the sprayed desulfurizing agent and corrosive flue gas from corroding the tower body 1 and the first anti-corrosion layer 2, thereby increasing the protection of the flue gas desulfurization tower.

[0029] In this embodiment, the positioning rod 10 is inserted and installed inside the slot. An installation groove is formed inside one end of the positioning rod 10. A locking rod 14 is slidably installed inside the installation groove. A spring is fixed between the inner end of the locking rod 14 and the inner wall of the installation groove. The top and bottom of the outer end of the locking rod 14 are provided with inclined surfaces. Through the mutual insertion of the positioning rod 10 and the slot, it is convenient to position, install, and assemble the first splicing plate 11, the second splicing plate 12, and the third splicing plate 13. The locking rod 14 can be locked inside the inner wall of the installation groove under the elastic force of the spring, facilitating the fixing of the first splicing plate 11, the second splicing plate 12, and the third splicing plate 13, improving the stability of the first splicing plate 11, the second splicing plate 12, and the third splicing plate 13, and facilitating rapid installation of the first splicing plate 11, the second splicing plate 12, and the third splicing plate 13.

[0030] When using the anti-corrosion structure for the flue gas desulfurization tower lining, the inner wall of the tower body 1 is first treated. Four coats of glass flake resin, each 0.8-1mm thick, are applied to the inner wall of the tower body 1. Then, by inserting the positioning rod 10 into the slot, the first splicing plate 11, the second splicing plate 12, and the third splicing plate 13 are sequentially installed from top to bottom on the inner wall of the tower body 1. All three splicing plates are bonded and fixed to the first anti-corrosion layer 2. The positioning rod 10 is inserted into the slot, and the slot... The angled surface can be used to press the locking rod 14, causing it to retract into the mounting groove and compress the spring. After the positioning rod 10 is fully inserted, the locking rod 14 is engaged with the inner wall of the mounting groove under the spring force, facilitating the quick positioning, installation, and fixation of the first splicing plate 11, the second splicing plate 12, and the third splicing plate 13. When installing the first splicing plate 11, the second splicing plate 12, and the third splicing plate 13, the space between the first splicing plate 11 and the second splicing plate 12 is [not specified]. Glass flake resin is applied and filled between the sides of the first splicing plate 11, the second splicing plate 12, and the third splicing plate 13, where they contact each other. This facilitates the use of glass flake resin to fix and prevent corrosion between the first splicing plate 11, the second splicing plate 12, and the third splicing plate 13. Fiberglass cloth is then applied to the top of the first splicing plate 11, the second splicing plate 12, the third splicing plate 13, and the first splicing plate 11 using a "three-cloth, five-coat" process. The epoxy resin composite anti-corrosion layer, through the cooperation of the first anti-corrosion layer 2, the first anti-corrosion cylinder 5, the second anti-corrosion cylinder 6, the third anti-corrosion cylinder 7, and the second anti-corrosion layer 8, can improve the anti-corrosion capability of the structure. The upper and lower splicing of the first splicing plate 11, the second splicing plate 12, and the third splicing plate 13 facilitates the guidance of desulfurizing agent and flue gas, prevents flue gas from escaping along the inner wall of the tower body 1, and avoids dead corners that affect the flow of flue gas, thus facilitating sufficient desulfurization of flue gas and improving the desulfurization effect of the structure, making it highly practical.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A corrosion-resistant lining structure for a flue gas desulfurization tower, comprising a tower body (1) and a corrosion-resistant lining, characterized in that, The anti-corrosion lining includes a first anti-corrosion cylinder (5), a second anti-corrosion cylinder (6), and a third anti-corrosion cylinder (7). The first anti-corrosion cylinder (5), the second anti-corrosion cylinder (6), and the third anti-corrosion cylinder (7) are installed on the inner wall of the lower end of the tower body (1) by a fixing ring (3) and a positioning mechanism (4). The fixing ring (3) is fixedly installed on the inner wall of the tower body (1). The positioning mechanism (4) includes a positioning rod (10) and a slot. The slot is symmetrically opened on the four sides inside the top and bottom of the fixing ring (3). The first anti-corrosion cylinder (5), the second anti-corrosion cylinder (6), and the third anti-corrosion cylinder (7) are respectively formed by circular splicing of the first splicing plate (11), the second splicing plate (12), and the third splicing plate (13). The positioning rod (10) is fixedly set at the bottom of the first splicing plate (11), the top and bottom of the second splicing plate (12), and the top of the third splicing plate (13).

2. The anti-corrosion structure for the lining of a flue gas desulfurization tower according to claim 1, characterized in that: The inner wall of the tower body (1) is coated with a first anti-corrosion layer (2), which is a glass flake resin layer.

3. The anti-corrosion structure for the lining of a flue gas desulfurization tower according to claim 2, characterized in that: The first splicing plate (11), the second splicing plate (12) and the third splicing plate (13) are bonded and fixedly installed on the outside of the first anti-corrosion layer (2). The first splicing plate (11), the second splicing plate (12) and the third splicing plate (13) are spliced ​​and installed sequentially from top to bottom.

4. The anti-corrosion structure for the lining of a flue gas desulfurization tower according to claim 3, characterized in that: The top and bottom ends of the first splicing plate (11), the second splicing plate (12), and the top end of the third splicing plate (13) all protrude towards their axis. The first splicing plate (11), the second splicing plate (12), and the third splicing plate (13) are bonded together by glass flake resin.

5. The anti-corrosion structure for the lining of a flue gas desulfurization tower according to claim 4, characterized in that: The first splicing plate (11) is bonded to the first splicing plate (11), the second splicing plate (12) and the second splicing plate (12), and the third splicing plate (13) and the third splicing plate (13) are bonded together with glass flake resin. The inner walls of the first splicing plate (11), the second splicing plate (12) and the third splicing plate (13) are provided with a second anti-corrosion layer (8).

6. The anti-corrosion structure for the lining of a flue gas desulfurization tower according to claim 5, characterized in that: The second anti-corrosion layer (8) is a composite anti-corrosion layer of glass fiber cloth and epoxy resin, and the first splicing plate (11), the second splicing plate (12) and the third splicing plate (13) are arc-shaped polypropylene high-molecular material anti-corrosion plates.

7. The anti-corrosion structure for the lining of a flue gas desulfurization tower according to claim 1, characterized in that: A spray layer (9) is horizontally arranged inside the upper end of the tower body (1), and the nozzles on the spray layer (9) are arranged inside the top of the first anti-corrosion cylinder (5).

8. The anti-corrosion structure for the lining of a flue gas desulfurization tower according to claim 1, characterized in that: The positioning rod (10) is inserted into the slot. An installation groove is provided inside one end of the positioning rod (10). A locking rod (14) is slidably installed inside the installation groove. A spring is fixed between the inner end of the locking rod (14) and the inner wall of the installation groove. The top and bottom of the outer end of the locking rod (14) are provided with inclined surfaces.

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