A wet flue gas absorption tower anti-corrosion treatment device and treatment method

Abstract

The present invention provides a wet flue gas absorption tower anti-corrosion treatment device and treatment method, the wet flue gas absorption tower anti-corrosion treatment device comprising: an outer shell in the shape of an equilateral triangle, the outer shell being provided with a sandblasting mechanism for sandblasting and removing rust on the inner wall of the absorption tower. The present invention provides a wet flue gas absorption tower anti-corrosion treatment device, which is mainly used for sandblasting the inner wall of the absorption tower by providing a sandblasting mechanism, wherein an electric push rod, a rotating rod, two angle adjustment rods and a driving clamp constitute an angle adaptive adjustment component for use in conjunction with a sandblasting head, and the expansion and contraction effect generated when the two angle adjustment rods contact the inner wall of the absorption tower can ultimately drive the sandblasting head to rotate to an angle adapted to the inner wall of the absorption tower, so that the sandblasting head has an adaptive angle adjustment function, and when the operating area of ​​the absorption tower changes, the angle of the sandblasting head changes synchronously, thereby ensuring the same sandblasting effect on the two operating areas.

Description

Technical Field

[0001] The present invention relates to the field of flue gas absorption towers, and in particular to a wet flue gas absorption tower anti-corrosion treatment device and treatment method. Background Art

[0002] Absorption tower is a type of equipment used to absorb and purify harmful substances generated in the production process; it is divided into three categories according to the gas-liquid contact form; the first category is plate towers, bubbling absorption towers, and stirred bubbling absorption towers in which the gas is dispersed in the liquid phase in the form of bubbles; the second category is ejectors, venturis, and spray towers in which the liquid is dispersed in the gas phase in the form of droplets; the third category is packed absorption towers and falling film absorption towers in which the liquid contacts the gas phase in a film-like motion; and the wet flue gas absorption tower is a type of absorption tower used to absorb harmful flue gases. Its principle is to use the different solubility of the gas mixture in the liquid absorbent to dissolve the easily soluble components in the absorbent.

[0003] At present, in the production and manufacturing process of wet flue gas absorption towers, the inner wall of the absorption tower needs to be treated with anti-corrosion. The anti-corrosion process generally includes: surface smoothing, sandblasting and protective coating. When sandblasting the inner wall of the absorption tower, a sandblasting device is required. The working process is as follows: the sandblasting device is first moved to the inside of the absorption tower, and the sandblasting head is rotated to evenly spray sand onto the inner wall of the absorption tower. After the sand contacts the inner wall of the absorption tower, the surface roughness of the inner wall of the absorption tower can be changed and a certain degree of cleanliness can be maintained.

[0004] However, when using traditional sandblasting equipment to sandblast the inner wall of the absorption tower, there are still the following shortcomings:

[0005] (1) Due to the presence of a partially conical area at the top of the absorption tower, there are two types of sandblasting operation areas in the absorption tower, cylindrical and conical. When the sandblasting head enters the cylindrical area from the conical area, the angle of the operation area changes synchronously. Since the angle of the sandblasting head is mostly fixed, it cannot adapt to the angle change of the sandblasting area. As a result, the sand material sprayed by the sandblasting head has different effects in the two operation areas, resulting in inconsistent uniformity of the inner wall of the absorption tower after sandblasting.

[0006] (2) In addition, when the sandblasting head enters the cylindrical area from the conical area, the distance between the sandblasting head and the operating area also changes. Since the position of the sandblasting head always remains fixed, the sandblasting effects of the two operating areas will also be inconsistent. Summary of the Invention

[0007] The present invention provides a wet flue gas absorption tower anti-corrosion treatment device, which solves the problem that the angle of a sandblasting head cannot adapt to the sandblasting area.

[0008] To solve the above technical problems, the present invention provides a wet flue gas absorption tower anti-corrosion treatment device, comprising: an outer shell in the shape of an equilateral triangle, the outer shell being provided with a sandblasting mechanism for sandblasting and removing rust from the inner sidewall of the absorption tower, the sandblasting mechanism comprising a storage tank, a driving portion for driving the storage tank to rotate, two supporting portions, and two sandblasting portions;

[0009] The sandblasting part includes a U-shaped movable seat and an electric push rod; the movable seat is movably mounted on the support part, the electric push rod is fixedly mounted in the middle of the lower end surface of the movable seat, the rotating rod is horizontally arranged between the two vertical sections of the movable seat, and the middle of the lower end surface of the rotating rod is rotatably connected to the telescopic end of the electric push rod, and the lower ends of the two angle adjustment rods are rotatably connected to the two ends of the rotating rod respectively, the telescopic end of the electric push rod is located above the horizontal section of the movable seat and is horizontally fixedly sleeved with a connecting cross bar, and two connecting springs are fixedly connected between the connecting cross bar and the rotating rod;

[0010] Two driving clamps are symmetrically fixedly installed in the middle of the two vertical sides of the rotating rod, and the sandblasting head is rotatably installed at the upper end between the two vertical sections of the movable seat; the sandblasting head is rotatably connected to the two vertical sections of the movable seat through two square blocks.

[0011] Preferably, the driving part includes a driving motor, two rotating gears and a connecting shaft. The driving motor is fixedly installed in the external shell, the two rotating gears are meshed, one end of the connecting shaft is rotatably connected to the inner wall of the external shell, and the other end is fixedly connected to the end of the storage tank away from the support part.

[0012] Preferably, the supporting part includes two connecting parts, two movable rods and two compression springs, the two connecting parts are symmetrically fixedly installed on the end of the storage tank away from the driving part, and the movable seat is located between the two connecting parts. The two movable rods are slidably installed on the two connecting parts, and the bottom ends of the two movable rods respectively pass through the inner side walls of the two connecting parts and are respectively fixedly connected to the two sides of the movable seat, and the two movable rods are respectively fixedly connected to the opposite side of the two connecting parts with two compression springs.

[0013] Preferably, spherical wheels are rotatably mounted on the top ends of the angle adjustment rod and the movable rod, and the spherical wheels are used for rolling contact with the inner side wall of the absorption tower.

[0014] Preferably, two sides of one vertical section of the movable seat are symmetrically fixedly connected with limiting members, and the two limiting members are slidingly connected to the two angle adjustment rods respectively.

[0015] Preferably, the openings of the two driving clamps face vertically upward, and the two square blocks are respectively located directly above the two driving clamps.

[0016] Preferably, the bottom ends of the two angle adjustment rods are provided with movable compensation grooves so that the rotating rod can rotate normally.

[0017] Preferably, the wet flue gas absorption tower anti-corrosion treatment device also includes a moving mechanism, which is arranged on the external shell. The moving mechanism includes a first electromagnet in the shape of an equilateral triangle and three rolling parts. The first electromagnet is fixedly mounted on the external shell, and the three rolling parts are evenly fixedly installed on the peripheral side of the external shell.

[0018] Preferably, the rolling portion includes an inverted U-shaped fixed frame, a U-shaped movable frame, a support spring, a second electromagnet and a roller member, the two vertical sections of the fixed frame are fixedly connected to the peripheral side of the external shell, the movable frame is slidably installed between the inner side walls of the fixed frame, and the two vertical sections of the movable frame pass through the fixed frame and are fixedly connected to the roller member, and the side of the movable frame opposite to the fixed frame is fixedly connected to a support spring.

[0019] Preferably, the treatment method of the above-mentioned wet flue gas absorption tower anti-corrosion treatment device comprises the following steps:

[0020] S1. First, smooth the inner wall surface of the absorption tower to remove surface burrs and weld protrusions;

[0021] S2. Use the sandblasting device to sandblast the inner wall of the absorption tower to change the surface roughness and maintain a certain degree of cleanliness;

[0022] S3. Then, apply primer on the inner wall of the absorption tower, apply mortar after drying, and then apply surface coating;

[0023] S4. Finally, apply glass flake coating evenly to the inner wall of the absorption tower.

[0024] Compared with related technologies, the wet flue gas absorption tower anti-corrosion treatment device provided by the embodiment of the present invention has the following beneficial effects:

[0025] (1) A sandblasting mechanism is provided, which is mainly used for sandblasting the inner wall of the absorption tower. An electric push rod, a rotating rod, two angle adjustment rods and a driving clamping member are used to form an angle adaptive adjustment component for use with a sandblasting head. The two angle adjustment rods produce a telescopic effect when in contact with the inner wall of the absorption tower, which can ultimately drive the sandblasting head to rotate to an angle that matches the inner wall of the absorption tower, so that the sandblasting head has an adaptive angle adjustment function. On the one hand, when the operating area of ​​the absorption tower changes, the angle of the sandblasting head changes synchronously, thereby ensuring that the sandblasting effect of the two operating areas is the same, and the uniformity of the inner wall of the absorption tower after sandblasting remains consistent; on the other hand, through the contact adjustment form with the inner wall, it can change synchronously at any time according to the change in the flatness of the inner wall, so that the angle adjustment accuracy of the sandblasting head is higher, and the sandblasting head is more targeted during sandblasting, and the treatment effect is better;

[0026] (2) By setting a support part, it is mainly used to provide support for the sandblasting part. The movable rod is used in conjunction with the compression spring to form an adaptive support component for use with the sandblasting part. When the operating area changes, the movable rod is used to synchronously drive the position of the sandblasting head to change, thereby realizing the adaptive adjustment function of the distance between the sandblasting head and the operating area. On the one hand, when the absorption tower is sandblasted, it is ensured that the distance between the sandblasting head and the operating area remains unchanged, so that the sandblasting effect of the sandblasting head remains consistent; on the other hand, by evenly arranging the three movable rods on the outside of the external shell, when the device is installed on the inside of the absorption tower for use, the three movable rods are synchronously extended and respectively contacted with the inner wall of the absorption tower, so that the device and the inner wall of the absorption tower can maintain a preliminary stable connection state, without the need for manual assistance to stabilize the device, which is more convenient when used. At the same time, it can also make the central axis of the external shell and the absorption tower automatically coincide, synchronously complete the alignment operation of the device and the absorption tower, and ensure that the distance between the two sandblasting parts and the operating area is consistent. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic structural diagram of a wet flue gas absorption tower anti-corrosion treatment device provided in an embodiment of the present invention.

[0028] Figure 2 A side view of a wet flue gas absorption tower anti-corrosion treatment device provided in an embodiment of the present invention.

[0029] Figure 3 for Figure 2 The cross-sectional view of the AA plane is shown.

[0030] Figure 4 for Figure 3 A partial enlarged view of area a is shown.

[0031] Figure 5It is a schematic diagram of the structure between the supporting part and the sandblasting part in the present invention.

[0032] Figure 6 for Figure 4 A side view between the support and blasting sections is shown.

[0033] Figure 7 for Figure 6 The cross-sectional view of the BB surface is shown.

[0034] Figure 8 It is a schematic structural diagram of a part of the sandblasting part in the present invention.

[0035] Figure 9 It is a structural schematic diagram of the moving mechanism in the present invention.

[0036] Figure 10 A schematic diagram of the state of the wet flue gas absorption tower anti-corrosion treatment device provided by an embodiment of the present invention when in use.

[0037] Numbers in the figure: 1. External shell; 2. Sandblasting mechanism; 21. Storage tank; 22. Driving part; 221. Driving motor; 222. Rotating gear; 223. Connecting shaft; 23. Supporting part; 231. Connecting piece; 232. Movable rod; 233. Compression spring; 24. Sandblasting part; 241. Movable seat; 242. Electric push rod; 243. Rotating rod; 244. Angle adjustment rod; 245. Connecting spring; 246. Driving clamp; 247. Sandblasting head; 248. Square block; 3. Moving mechanism; 31. First electromagnet; 32. Rolling part; 321. Fixed frame; 322. Movable frame; 323. Support spring; 324. Second electromagnet; 325. Roller. DETAILED DESCRIPTION

[0038] The embodiments of the present invention are described below with reference to the accompanying drawings. In the process, to ensure clarity and convenience of the description, we may exaggerate the width of the lines or the size of the components in the drawings.

[0039] In addition, the terms used below are defined based on their functions in the present invention and may vary depending on the operator's intention or custom; therefore, these terms are defined based on the entire content of this specification.

[0040] Please refer to Figure 1 and Figure 3, a wet flue gas absorption tower anti-corrosion treatment device, comprising: an outer shell 1 in the shape of an equilateral triangle, a sandblasting mechanism 2 for sandblasting and rust removal on the inner wall of the absorption tower is provided on the outer shell 1, the sandblasting mechanism 2 comprises a storage tank 21, a driving part 22 for driving the storage tank 21 to rotate, two supporting parts 23 and two sandblasting parts 24, the storage tank 21 is rotatably mounted on the central axis position of the outer shell 1, for storing sand material; the driving part 22 is provided on the end side of the outer shell 1 and is connected to one end of the storage tank 21, which can drive the storage tank 21 to rotate on the outer shell 1; the two supporting parts 23 are symmetrically provided at one end of the storage tank 21 away from the driving part 22, for providing support for the sandblasting part 24; the two sandblasting parts 24 are symmetrically provided on the two supporting parts 23, for spraying sand material toward the inner wall of the absorption tower to perform sandblasting operation.

[0041] Please refer to Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8The sandblasting part 24 includes a U-shaped movable seat 241, an electric push rod 242, a rotating rod 243, two angle adjustment rods 244, two connecting springs 245, two U-shaped driving clamps 246, a sandblasting head 247 and two square blocks 248; the movable seat 241 is movably mounted on the support part 23, the electric push rod 242 is fixedly mounted in the middle of the lower end surface of the movable seat 241, the rotating rod 243 is horizontally arranged between the two vertical sections of the movable seat 241, and the middle of the lower end surface of the rotating rod 243 is rotatably connected to the telescopic end of the electric push rod 242, through the electric push rod 2 42 can drive the rotating rod 243 to extend and retract; the lower ends of the two angle adjustment rods 244 are respectively rotatably connected to the two ends of the rotating rod 243, and the bottom ends of the two angle adjustment rods 244 are provided with movable compensation grooves, so that the rotating rod 243 can rotate normally; the telescopic end of the electric push rod 242 is located above the horizontal section of the movable seat 241 and is horizontally fixed with a connecting cross bar, and two connecting springs 245 are fixedly connected between the connecting cross bar and the rotating rod 243; the two connecting springs 245 can provide elastic support for the two angle adjustment rods 244 respectively, so that the two angle adjustment rods 2 44 maintains a stable state when not squeezed, and when the squeezing effect disappears, it can drive the angle adjustment rod 244 to reset; the two sides of one vertical section of the movable seat 241 are symmetrically fixedly connected to the limiting members, and the two limiting members are respectively slidably connected to the two angle adjustment rods 244, so that the angle adjustment rod 244 can slide stably in the vertical direction; the two driving clamps 246 are symmetrically fixedly installed in the middle of the two vertical side surfaces of the rotating rod 243, and the openings of the two driving clamps 246 are vertically upward, and can move synchronously with the rotating rod 243; the sandblasting head 247 is rotatably installed on At the upper end between the two vertical sections of the movable seat 241, the sandblasting head 247 and the storage tank 21 are connected by a hose, so that the sand in the storage tank 21 can enter the sandblasting head 247; the sandblasting head 247 is rotatably connected to the two vertical sections of the movable seat 241 through two square blocks 248, and the two square blocks 248 are respectively located directly above the two driving clamps 246. The driving clamp 246 can be connected to the sandblasting head 247 by moving upward and engaging with the square blocks 248. When the rotating rod 243 rotates, the driving clamp 246 can drive the sandblasting head 247 to rotate synchronously.

[0042] Please refer to Figure 3 The driving part 22 includes a driving motor 221, two rotating gears 222 and a connecting shaft 223. The driving motor 221 is fixedly installed in the external shell 1, and the two rotating gears 222 are engaged with each other. One end of the connecting shaft 223 is rotatably connected to the inner wall of the external shell 1, and the other end is fixedly connected to the end of the storage tank 21 away from the support part 23. The sandblasting part 24 can be driven to rotate by the driving part 22, so that the sandblasting part 24 can evenly sandblast the inner wall of the absorption tower.

[0043] Please refer to Figure 3 、 Figure 5 、 Figure 7 The supporting part 23 includes two connecting pieces 231, two movable rods 232 and two compression springs 233. The two connecting pieces 231 are symmetrically fixedly mounted on one end of the storage tank 21 away from the driving part 22, and the movable seat 241 is located between the two connecting pieces 231. The two movable rods 232 are slidably mounted on the two connecting pieces 231. The bottom ends of the two movable rods 232 respectively penetrate the inner side walls of the two connecting pieces 231 and are respectively fixedly connected to the two sides of the movable seat 241. When the movable rod 232 moves up and down, it can synchronously drive the movable seat 241 to move. The two movable rods 232 are respectively fixedly connected to the opposite side of the two connecting pieces 231 with two compression springs 233. The compression springs 233 mainly provide elastic support for the movable rod 232. When 32 is subjected to downward extrusion force, the compression spring 233 can be contracted, so that the movable rod 232 can adapt to the absorption towers with different inner diameters; the angle adjustment rod 244 and the top of the movable rod 232 are both rotatably installed with spherical wheels, which are used for rolling contact with the inner wall of the absorption tower, thereby reducing the friction between the angle adjustment rod 244, the movable rod 232 and the inner wall of the absorption tower, and will not affect the rotation of the sandblasting part 24; in addition to providing support for the sandblasting part 24, the support part 23 is set in a retractable form, which can drive the sandblasting head 247 to adjust the spacing according to the inner diameter of the absorption tower, and in order to ensure that the support part 23 plays an adaptive adjustment function on the position of the sandblasting head 247, the inner diameter of the absorption tower to be processed must be less than or equal to the length of the movable rod 232.

[0044] Please refer to Figure 3 、 Figure 9The wet flue gas absorption tower anti-corrosion treatment device also includes a moving mechanism 3, which is arranged on the external shell 1. The moving mechanism 3 includes a first electromagnet 31 in the shape of an equilateral triangle and three rolling parts 32. The first electromagnet 31 is fixedly mounted on the external shell 1. The three rolling parts 32 are evenly fixedly mounted on the peripheral side of the external shell 1. The rolling part 32 includes an inverted U-shaped fixing frame 321, a U-shaped moving frame 322, a supporting spring 323, a second electromagnet 324 and a roller member 325. The two fixing frames 321 are fixed to the outer shell 1. The vertical sections are fixedly connected to the side surfaces of the outer shell 1, the mobile frame 322 is slidably installed between the inner side walls of the fixed frame 321, and the two vertical sections of the mobile frame 322 pass through the fixed frame 321 and are fixedly connected to the roller member 325. The side of the mobile frame 322 opposite to the fixed frame 321 is fixedly connected with a support spring 323, and the second electromagnet 324 is fixedly installed on the horizontal section of the mobile frame 322 and aligned with the first electromagnet 31; the support spring 323 can provide elastic support for the mobile frame 322, which can drive the mobile frame 322 to move. The frame 322 retracts and resets; the first electromagnet 31 in the shape of an equilateral triangle can generate three magnetic forces in different directions after being energized, which are used in conjunction with the three second electromagnets 324 respectively. The magnetic poles generated by the second electromagnet 324 and the first electromagnet 31 after being energized are the same. Under the action of the magnetic forces of the two, the movable frame 322 can be moved on the fixed frame 321 and drive the roller member 325 to move, thereby adjusting the position of the roller member 325 to adapt to absorption towers of different diameters; the roller member 325 is composed of a mounting base, a roller mounted on the mounting base, and a motor. Under the rotation of the motor, the roller rotates; and by providing three rolling parts 32, not only can the device move stably in the absorption tower, but also, when the three roller members 325 synchronously extend and retract to contact the inner wall of the absorption tower respectively, the device can be driven to move synchronously and adapt to the movement, and finally maintain a fixed state, again confirming the coincidence relationship between the outer shell 1 and the central axis of the absorption tower, realizing the secondary alignment function of the device and the absorption tower, and ensuring that the sandblasting mechanism 2 can evenly sandblast the inner wall of the absorption tower.

[0045] In addition, the present invention also provides a wet flue gas absorption tower anti-corrosion treatment method, comprising the following steps:

[0046] S1. First, smooth the inner wall surface of the absorption tower to remove surface burrs and weld protrusions;

[0047] S2. Use the sandblasting device to sandblast the inner wall of the absorption tower to change the surface roughness and maintain a certain degree of cleanliness. The specific process is as follows:

[0048] When in use, the sandblasting is performed from the inside of the absorption tower to the outside. The device is first placed in a horizontally placed absorption tower so that the three movable rods 232 first contact the inner wall of the absorption tower and are squeezed to adapt to the contraction. Under the support of the three movable rods 232, the device can be stably installed on the inner wall of the absorption tower. Since the three movable rods 232 have the same length and telescopic amount, the external shell 1 and the central axis of the absorption tower can be coincided, and the first center alignment operation of the device and the absorption tower is automatically completed; after that, the moving mechanism 3 is adjusted, and the first electromagnet 31 and the three second electromagnets 324 are energized at the same time. At this time, the first electromagnet 31 generates three magnetic forces in the same direction as the second electromagnet 324, which can simultaneously push the three movable frames 322 to slide on the fixed frame 321, and can drive the three roller members 325 to extend outward synchronously;

[0049] At this time, since the three roller members 325 have the same extension, after the three roller members 325 simultaneously contact the inner side wall of the absorption tower, the position of the device can be driven to change adaptively, ensuring that the outer shell 1 and the central axis of the absorption tower always coincide with each other, completing the secondary alignment operation of the device, so that the position of the device remains fixed. Then, by the positive rotation of the three roller members 325, the device can be moved into the absorption tower, and finally the sandblasting part 24 is in the conical area of ​​the absorption tower and stops moving.

[0050] Subsequently, the angle of the sandblasting head 247 is adjusted according to the inclination angle of the conical surface area of ​​the absorption tower. During the adjustment, the electric push rod 242 is extended, so that the rotating rod 243 drives the two angle adjustment rods 244 to move synchronously toward the inner wall of the absorption tower, and the driving clamping member 246 follows the rotating rod 243 to move synchronously toward the square block 248 and finally engage with the square block 248, establishing a connection between the rotating rod 243 and the sandblasting head 247.

[0051] As the electric push rod 242 gradually extends, the spherical wheel on the angle adjustment rod 244 closer to the inner wall of the absorption tower first contacts the inner wall of the absorption tower, causing the closer angle adjustment rod 244 to be squeezed and begin to shrink toward the rotating rod 243, squeezing the corresponding support spring 323. The rotating rod 243 simultaneously starts to rotate, driving the other angle adjustment rod 244 to quickly approach the inner wall of the absorption tower and stretching the corresponding support spring 323. When the rotating rod 243 rotates, the driving clamp 246 drives the square block 248 to rotate synchronously, and the sandblasting head 247 also rotates synchronously.

[0052] Until the spherical wheel on the other angle adjustment rod 244 also contacts the inner wall of the absorption tower, since the two angle adjustment rods 244 are subjected to the same degree of squeezing, the rotating rod 243 stops rotating and remains stable, and the sandblasting head 247 also remains fixed, and the electric push rod 242 stops extending. At this time, the straight line formed by the spherical wheels on the two angle adjustment rods 244 just matches the inclination angle of the inner wall of the absorption tower, and the rotating rod 243 just rotates to the angle adapted to the inner wall of the absorption tower, finally making the sandblasting head 247 also adapt to the inner wall of the absorption tower, so that its nozzle is facing the inner wall of the absorption tower, completing the angle adaptive adjustment of the sandblasting head 247;

[0053] Subsequently, by driving the motor 221, the two rotating gears 222 can be rotated synchronously, and the connecting shaft 223 can be driven to rotate, so that the storage tank 21 can drive the sandblasting part 24 and the support part 23 to rotate synchronously, and the two sandblasting heads 247 can rotate to evenly spray sand material toward the inner wall of the absorption tower;

[0054] At the same time, the roller member 325 rotates in the opposite direction, so that the device can be slowly moved outward. During this process, the device gradually moves from the low position to the high position in the conical surface area of ​​the absorption tower, and the amount of extrusion of the movable rod 232 is simultaneously reduced. Under the elastic force of the compression spring 233, the length of the movable rod 232 is adaptively adjusted, and the sandblasting head 247 is driven to move synchronously, ensuring that the distance between the sandblasting head 247 and the inner wall of the absorption tower remains unchanged.

[0055] When the device moves from the conical surface area of ​​the absorption tower to the horizontal area, the distance between the sandblasting head 247 and the absorption tower remains unchanged under the telescopic action of the movable rod 232, and the two angle adjustment rods 244 are automatically adjusted to a flush state under the elastic force of the two connecting springs 245 respectively, and the sandblasting head 247 is always flush with the inner wall of the absorption tower by following the rotation until the inner wall of the absorption tower is completely processed. Since the angle and spacing of the sandblasting head 247 remain unchanged, the sandblasting effect of different areas of the inner wall of the absorption tower is basically the same, and the sandblasting operation is completed;

[0056] S3. Then, apply primer on the inner wall of the absorption tower, apply mortar after drying, and then apply surface coating;

[0057] S4. Finally, apply glass flake coating evenly to the inner wall of the absorption tower.

[0058] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A wet flue gas absorption tower anti-corrosion treatment device, comprising: An outer shell (1) in the shape of an equilateral triangle is characterized in that: a sandblasting mechanism (2) for sandblasting and removing rust from the inner wall of an absorption tower is provided on the outer shell (1), and the sandblasting mechanism (2) comprises a storage tank (21), a driving part (22) for driving the storage tank (21) to rotate, two supporting parts (23) and two sandblasting parts (24); The two sandblasting parts (24) are symmetrically arranged on the two supporting parts (23) in an upper and lower direction. The sandblasting parts (24) include a U-shaped movable seat (241) and an electric push rod (242); the movable seat (241) is movably installed on the supporting part (23), and the electric push rod (242) is fixedly installed in the middle of the lower end surface of the movable seat (241). The rotating rod (243) is horizontally arranged between the two vertical sections of the movable seat (241), and the middle of the lower end surface of the rotating rod (243) is aligned with the electric push rod. The telescopic end of the electric push rod (242) is rotatably connected, and the lower ends of the two angle adjustment rods (244) are rotatably connected to the two ends of the rotating rod (243), and the bottom ends of the two angle adjustment rods (244) are provided with movable compensation grooves so that the rotating rod (243) can rotate normally. The telescopic end of the electric push rod (242) is located above the horizontal section of the movable seat (241) and is horizontally fixed with a connecting cross bar. Two connecting springs (245) are fixedly connected between the connecting cross bar and the rotating rod (243); Two driving clamps (246) are symmetrically fixedly installed in the middle of the two vertical side surfaces of the rotating rod (243), and the openings of the two driving clamps (246) are vertically upward. The sandblasting head (247) is rotatably installed at the upper end between the two vertical sections of the movable seat (241); the sandblasting head (247) is rotatably connected to the two vertical sections of the movable seat (241) through two square blocks (248), and the two square blocks (248) are respectively located directly above the two driving clamps (246).

2. The anti-corrosion treatment device for a wet flue gas absorption tower according to claim 1, characterized in that: The storage tank (21) is rotatably mounted on the central axis of the external shell (1); the driving portion (22) is arranged on the end side of the external shell (1) and is connected to one end of the storage tank (21); the driving portion (22) comprises a driving motor (221), two rotating gears (222) and a connecting shaft (223); the driving motor (221) is fixedly mounted in the external shell (1); the two rotating gears (222) are meshed with each other; one end of the connecting shaft (223) is rotatably connected to the inner wall of the external shell (1), and the other end is fixedly connected to one end of the storage tank (21) away from the supporting portion (23).

3. The anti-corrosion treatment device for a wet flue gas absorption tower according to claim 1, characterized in that: The two supporting parts (23) are symmetrically arranged at one end of the storage tank (21) away from the driving part (22) in the upper and lower directions. The supporting part (23) includes two connecting parts (231), two movable rods (232) and two compression springs (233). The two connecting parts (231) are symmetrically fixedly installed at one end of the storage tank (21) away from the driving part (22). The movable seat (241) is located between the two connecting parts (231). The two movable rods (232) are slidably installed on the two connecting parts (231). The bottom ends of the two movable rods (232) respectively penetrate the inner side walls of the two connecting parts (231) and are respectively fixedly connected to the two sides of the movable seat (241). The bottoms of the two movable rods (232) are respectively connected with compression springs (233).

4. The anti-corrosion treatment device for a wet flue gas absorption tower according to claim 3, characterized in that: The top ends of the angle adjustment rod (244) and the movable rod (232) are both rotatably mounted with spherical wheels, and the spherical wheels are used for rolling contact with the inner side wall of the absorption tower.

5. The anti-corrosion treatment device for a wet flue gas absorption tower according to claim 1, characterized in that: Limiting members are symmetrically fixedly connected to both sides of one vertical section of the movable seat (241), and the two limiting members are slidably connected to the two angle adjustment rods (244) respectively.

6. The anti-corrosion treatment device for a wet flue gas absorption tower according to claim 1, characterized in that: The invention also includes a moving mechanism (3), which is arranged on the external shell (1). The moving mechanism (3) includes a first electromagnet (31) in the shape of an equilateral triangle and three rolling parts (32). The first electromagnet (31) is fixedly mounted on the external shell (1), and the three rolling parts (32) are evenly fixedly mounted on the peripheral side surface of the external shell (1).

7. The anti-corrosion treatment device for a wet flue gas absorption tower according to claim 6, characterized in that: The rolling portion (32) comprises an inverted U-shaped fixed frame (321), a U-shaped movable frame (322), a support spring (323), a second electromagnet (324) and a roller member (325). The two vertical sections of the fixed frame (321) are fixedly connected to the peripheral side surface of the external shell (1). The movable frame (322) is slidably installed between the inner side walls of the fixed frame (321). The two vertical sections of the movable frame (322) pass through the fixed frame (321) and are fixedly connected to the roller member (325). The side of the movable frame (322) opposite to the fixed frame (321) is fixedly connected to the support spring (323).

8. The anti-corrosion treatment device for a wet flue gas absorption tower according to claim 1, characterized in that: The above-mentioned treatment method of the wet flue gas absorption tower anti-corrosion treatment device comprises the following steps: S1. First, smooth the inner wall surface of the absorption tower to remove surface burrs and weld protrusions; S2. Use the sandblasting device to sandblast the inner wall of the absorption tower to change the surface roughness and maintain a certain degree of cleanliness; S3. Then, apply primer on the inner wall of the absorption tower, apply mortar after drying, and then apply surface coating; S4. Finally, apply glass flake coating evenly to the inner wall of the absorption tower.

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