Demisting device of desulfurization waste liquid absorption tower

Abstract

The utility model discloses a desulfurization waste liquid absorption tower demisting device which comprises a mounting seat, a tower body is mounted on the mounting seat, a water tank, a partition plate, a Pall ring, a spray pipe and a demisting plate are sequentially mounted in the tower body from bottom to top, a tower cover is detachably mounted at the top end of the tower body, and a support is mounted at the upper end of the tower cover. A rain baffle is installed on the support, an exhaust window is arranged below the rain baffle, and a water pump is installed on the outer side of the tower body. According to the utility model, the demisting plate convenient to disassemble and replace is arranged, the hand wheel is rotated to drive the gear to rotate, the gear rotates to drive the rack meshed with the gear to move horizontally, and the rack moves to drive the positioning rod to move horizontally, so that one end of the positioning rod is moved out of the positioning hole; at the moment, the positioning rod relieves the fixed constraint on the demisting plate, then the demisting plate is lifted upwards, the demisting plate can be taken out of the tower body to be replaced, the structure is simple, and the maintenance and use cost is low.

Description

Technical Field

[0001] This utility model relates to the field of desulfurization technology, and in particular to a demisting device for a desulfurization wastewater absorption tower. Background Technology

[0002] The main function of an absorption tower is to absorb sulfur dioxide from flue gas. Typical absorption towers use limestone-gypsum precipitate to remove dust and harmful gases like sulfur dioxide from flue gas. Even after spray absorption and purification, the flue gas still retains a significant amount of droplets and dust. These droplets include water mist, sulfuric acid droplets formed from unremoved sulfur dioxide reacting with water, and calcium sulfate and calcium sulfite droplets produced during the desulfurization reaction. Before the flue gas exits the absorption tower, a demister must remove these droplets to prevent the strong acidic droplets and calcium sulfite droplets from corroding the flue and other downstream equipment. Direct emission would cause severe air pollution.

[0003] Existing technologies have the following problems:

[0004] Some absorption towers use electromagnets to fix the demisters. Although this allows for the disassembly and replacement of the demister plates, the structure is relatively complex, and the electromagnet setup leads to high usage and maintenance costs when replacing the demister plates.

[0005] To address these shortcomings, we proposed a demisting device for desulfurization wastewater absorption towers. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a demisting device for desulfurization wastewater absorption towers.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a desulfurization waste liquid absorption tower demister device, including a mounting base, on which a tower body is mounted, and inside the tower body, from bottom to top, a water tank, a baffle plate, a Pall ring, a spray pipe, and a demister plate are sequentially installed. A tower cover is detachably mounted on the top of the tower body, and a bracket is mounted on the upper end of the tower cover. A rain shield is mounted on the bracket, and an exhaust window is provided below the rain shield. A water pump is mounted on the outside of the tower body, and the inlet end of the water pump is connected to the water tank. The outlet end of the water pump is connected to the spray pipe. A positioning hole is opened on the surface of the demister plate, and a positioning rod is inserted into the positioning hole. A spring is installed at one end of the positioning rod, and the other end of the spring is fixedly connected to the inner wall of the tower body. A rack is welded to the bottom surface of the positioning rod. A gear is mounted on the tower body, and the gear meshes with the rack. A handwheel is mounted on the outside of the tower body, and one end of the handwheel is fixedly connected to the gear.

[0008] Preferably, a microcontroller is installed on the outside of the tower body, and the microcontroller is electrically connected to the water pump via a wire.

[0009] Preferably, a spray head is fixedly installed on the bottom surface of the spray pipe, and there are several spray heads.

[0010] Preferably, the diameter of the positioning rod is smaller than the diameter of the positioning hole.

[0011] Preferably, the length of the rack is greater than the depth of the positioning hole.

[0012] Preferably, the tower cover is used in conjunction with the tower body.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In this utility model, a demister plate that is easy to disassemble and replace is provided. By turning the handwheel, the handwheel rotates and drives the gear to rotate. The gear rotates and drives the rack that meshes with it to move horizontally. The movement of the rack drives the positioning rod to move horizontally as well, so that one end of the positioning rod moves out of the positioning hole. At this time, the positioning rod releases the fixing restraint on the demister plate. Then, the demister plate can be lifted upward to remove it from the tower body for replacement. Moreover, the structure is simple and the maintenance and use costs are low. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a cross-sectional view of the demisting device for the desulfurization wastewater absorption tower proposed in this utility model;

[0017] Figure 2 for Figure 1 Enlarged diagram of A in the middle;

[0018] Figure 3 This is a schematic diagram of the external structure of the demisting device for the desulfurization wastewater absorption tower proposed in this utility model.

[0019] Legend:

[0020] 1. Mounting base; 2. Tower body; 3. Baffle plate; 4. Pall ring; 5. Spray pipe; 6. Demisting plate; 7. Tower cover; 8. Bracket; 9. Rain shield; 10. Exhaust window; 11. Water tank; 12. Water pump; 13. Positioning hole; 14. Positioning rod; 15. Spring; 16. Rack; 17. Gear; 18. Handwheel; 19. Microcontroller. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0023] Please refer to Figure 1-3 The desulfurization wastewater absorption tower demister includes a mounting base 1, on which a tower body 2 is mounted. Inside the tower body 2, from bottom to top, are a water tank 11, a baffle 3, a Pall ring 4, a spray pipe 5, and a demister plate 6. A tower cover 7 is detachably mounted on the top of the tower body 2, and a bracket 8 is mounted on the upper end of the tower cover 7. A rain shield 9 is mounted on the bracket 8, and an exhaust vent 10 is located below the rain shield 9. A water pump 12 is mounted on the outside of the tower body 2, and the inlet of the water pump 12 is connected to the water tank 11. When connected, the water outlet of the water pump 12 is connected to the spray pipe 5. The surface of the demisting plate 6 is provided with a positioning hole 13, and a positioning rod 14 is inserted into the positioning hole 13. A spring 15 is installed at one end of the positioning rod 14, and the other end of the spring 15 is fixedly connected to the inner wall of the tower body 2. A rack 16 is welded to the bottom surface of the positioning rod 14. A gear 17 is installed on the tower body 2, and the gear 17 meshes with the rack 16. A handwheel 18 is installed on the outside of the tower body 2, and one end of the handwheel 18 is fixedly connected to the gear 17.

[0024] In operation, the exhaust gas first flows into the tower body 2, then the gas and liquid components of the mist are distributed through the Pall ring 4. Next, the water pump 12 is activated to draw water from the water tank 11 and direct it into the demister plate 6, where it is sprayed through nozzles to purify the exhaust gas. The purified exhaust gas then flows upwards, passing through the demister plate 6 for dust removal. The dust-removed air then flows out of the tower body 2 through the outlet for discharge. When discharging during rainy weather, water flows rapidly from both sides through the rain baffle 9, and the discharged gas flows into the rain baffle 9. Discharge is achieved through the exhaust window 10. The system incorporates a demister plate 6 that is easy to disassemble and replace. By rotating the handwheel 18, the handwheel 18 rotates, causing the gear 17 to rotate. The gear 17 rotates, causing the rack 16, which meshes with it, to move horizontally. The movement of the rack 16 causes the positioning rod 14 to move horizontally as well, thereby removing one end of the positioning rod 14 from the positioning hole 13. At this point, the positioning rod 14 is released from its fixing constraint on the demister plate 6. Then, the demister plate 6 can be removed from the tower body 2 by lifting it upwards for replacement. The system has a simple structure and low maintenance and operating costs.

[0025] In this implementation plan: a microcontroller 19 is installed on the outside of the tower body 2, and the microcontroller 19 is electrically connected to the water pump 12 through a wire.

[0026] Specifically, it is a common circuit connection structure, which is commonplace for those skilled in the art and will not be described in detail here.

[0027] In this implementation plan: a spray head is fixedly installed on the bottom surface of the spray pipe 5, and there are several spray heads.

[0028] Specifically, improve the spraying effect and efficiency of flue gas.

[0029] In this embodiment, the diameter of the positioning rod 14 is smaller than the diameter of the positioning hole 13.

[0030] Specifically, this allows the positioning rod 14 to be smoothly inserted into the positioning hole 13, ensuring the fixation effect on the demister plate 6.

[0031] In this embodiment, the length of the rack 16 is greater than the depth of the positioning hole 13.

[0032] Specifically, this allows one end of the positioning rod 14 to be smoothly moved out of the positioning hole 13.

[0033] In this implementation plan: the tower cover 7 is used in conjunction with the tower body 2.

[0034] Specifically, the defogging plate 6 can be easily removed from the tower body 2 for replacement.

[0035] In this implementation scheme: the microcontroller 19 is an existing structure, and the control circuit can be implemented by those skilled in the art through simple programming. It is common knowledge in the field, and it is only used without modification. Therefore, the control method and circuit connection will not be described in detail.

[0036] Working principle: During operation, the exhaust gas first flows into the tower body 2, then the gas and liquid components of the mist are distributed through the Pall ring 4. Next, the water pump 12 is activated to draw water from the water tank 11 and allow it to flow into the demister plate 6, where it is sprayed through nozzles to purify the exhaust gas. The purified exhaust gas then flows upwards, passing through the demister plate 6 for dust removal. The dust-removed air then flows out of the tower body 2 through the outlet for discharge. When discharging during rainy weather, water flows rapidly from both sides through the rain baffle 9, and the discharged gas flows into the rain baffle 9. The exhaust is discharged through the exhaust window 10. The system is equipped with a demister plate 6 that is easy to disassemble and replace. By turning the handwheel 18, the handwheel 18 rotates, which drives the gear 17 to rotate. The gear 17 rotates, which drives the rack 16 that meshes with it to move horizontally. The movement of the rack 16 causes the positioning rod 14 to move horizontally as well, so that one end of the positioning rod 14 is moved out of the positioning hole 13. At this time, the positioning rod 14 is released from the fixing of the demister plate 6. Then, the demister plate 6 can be removed from the tower body 2 by lifting it upwards for replacement. The structure is simple and the maintenance and use costs are low.

[0037] It should be noted that the model specifications of the microcontroller 19 and the water pump 12 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0038] The power supply and operating principle of the microcontroller 19 and the water pump 12 are clear to those skilled in the art and will not be described in detail here.

[0039] It is worth noting that the microcontroller 19 disclosed in the above embodiments can be an MCS-51, and the operation of the microcontroller 19 adopts methods commonly used in the prior art.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A demisting device for a desulfurization wastewater absorption tower, comprising a mounting base (1), characterized in that, The mounting base (1) is equipped with a tower body (2), and inside the tower body (2) from bottom to top, a water tank (11), a partition (3), a Pall ring (4), a spray pipe (5), and a demister plate (6) are installed sequentially. The top of the tower body (2) is detachably equipped with a tower cover (7), and a bracket (8) is installed on the upper end of the tower cover (7). A rain shield (9) is installed on the bracket (8), and an exhaust window (10) is provided below the rain shield (9). A water pump (12) is installed on the outside of the tower body (2), and the water inlet of the water pump (12) is connected to the water tank (11). The water outlet is connected to the spray pipe (5). The surface of the demisting plate (6) is provided with a positioning hole (13), and a positioning rod (14) is inserted into the positioning hole (13). One end of the positioning rod (14) is equipped with a spring (15), and the other end of the spring (15) is fixedly connected to the inner wall of the tower body (2). A rack (16) is welded to the bottom surface of the positioning rod (14). A gear (17) is installed on the tower body (2), and the gear (17) meshes with the rack (16). A handwheel (18) is installed on the outside of the tower body (2), and one end of the handwheel (18) is fixedly connected to the gear (17).

2. The demisting device for the desulfurization wastewater absorption tower according to claim 1, characterized in that, A microcontroller (19) is installed on the outside of the tower body (2), and the microcontroller (19) is electrically connected to the water pump (12) through a wire.

3. The demisting device for the desulfurization wastewater absorption tower according to claim 1, characterized in that, The bottom surface of the spray pipe (5) is fixedly equipped with a spray head, and there are several spray heads.

4. The demisting device for the desulfurization wastewater absorption tower according to claim 1, characterized in that, The diameter of the positioning rod (14) is smaller than the diameter of the positioning hole (13).

5. The demisting device for the desulfurization wastewater absorption tower according to claim 1, characterized in that, The length of the rack (16) is greater than the depth of the positioning hole (13).

6. The demisting device for the desulfurization wastewater absorption tower according to claim 1, characterized in that, The tower cover (7) is used in conjunction with the tower body (2).

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