Desulfurization, demisting and dust removal integrated flue gas purification device

Abstract

The utility model provides a desulfurization, demisting and dust removal integrated exhaust flue gas purification device which comprises a tower body, the bottom of an inner cavity of the tower body is movably connected with a rotating plate through a sealing bearing, the lower surface of the tower body is fixedly connected with a main motor, and an output shaft of the main motor is fixedly connected with the rotating plate through a connecting piece. The middle part of the upper surface of the rotating plate is fixedly connected with a stand column, the surface of the stand column is symmetrically connected with auxiliary stirring plates, the surface of the stand column is symmetrically connected with main stirring plates, the lower end of the inner cavity of the tower body is fixedly connected with a crushing net and a shunting pipe, and the lower surface of the shunting pipe is symmetrically connected with a gas injection pipe; the filter cotton is fixedly connected to the upper end of the inner cavity of the tower body through a fixing frame. Through the cooperation of the main motor, the rotating plate, the vertical plate, the stand column and the crushing net, the device can synchronously carry out desulfurization and dust removal treatment on flue gas, and the flue gas purification efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas purification, in particular to a flue gas purification device integrating desulfurization, demisting and dust removal. Background Art

[0002] Desulfurization refers to fixing the sulfur element in coal into a solid by calcium-based methods to prevent the generation of SO2 during combustion. At present, desulfurization methods can be divided into wet, dry and semi-dry (semi-wet) methods according to the dry and wet states of the absorbent and the desulfurization product during the desulfurization process. Wet desulfurization technology uses a solution or slurry containing an absorbent to desulfurize and treat the desulfurization product in a wet state. This method is widely used in boiler flue gas or industrial tail gas pollution control due to its advantages such as fast desulfurization reaction speed, simple equipment and high desulfurization efficiency. Wet desulfurization technology often uses flue gas flow to remove particulate matter and small droplets inside. However, during the flue gas desulfurization process, the sulfur in the flue gas reacts with the limestone slurry to neutralize, easily forming droplets that flow with the flue gas, and also interfere with the dust removal effect during gas-liquid contact. The droplets are easy to cause pollution and serious corrosion problems to the related structures in subsequent contact. In the common flue gas purification process, desulfurization, demisting and dust removal are usually carried out in different equipment, which leads to a large overall footprint of the flue gas purification device and requires a large installation space, thereby increasing the production and installation costs. Utility Model Content

[0003] In order to overcome the defects of the prior art, a flue gas purification device integrating desulfurization, demisting and dust removal is provided to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, a flue gas purification device with integrated desulfurization, demisting and dust removal is provided, comprising: a tower body, the bottom of the tower body inner cavity is movably connected to a rotating plate through a sealing bearing, and the lower surface of the tower body is fixedly connected to a main motor, the output shaft of the main motor is fixedly connected to the rotating plate through a connecting piece, and the two ends of the upper surface of the rotating plate are symmetrically connected to the vertical plates, and the middle part of the upper surface of the rotating plate is fixedly connected to the column, and at the same time, the surface of the vertical rod is symmetrically connected to the auxiliary stirring plate, and the surface of the column is symmetrically connected to the main stirring plate, and the lower end of the tower body inner cavity is fixedly connected to a crushing net and a diverter pipe respectively, the lower surface of the diverter pipe is symmetrically connected to an air injection pipe, one end of the diverter pipe is connected to an air inlet pipe, and the filter cotton is fixedly connected to the upper end of the tower body inner cavity through a fixing frame, and the upper end of the tower body inner cavity is fixedly connected to a demister and a filter plate respectively, and the demister is located below the filter plate.

[0005] Preferably, the rotating plate is in a rectangular structure, the length of the rotating plate is adapted to the diameter of the inner cavity of the tower body, and the end faces at both ends of the rotating plate are in an arc-shaped structure, and the end faces at both ends of the rotating plate and the side faces of the inner cavity of the tower body fit each other.

[0006] Preferably, the two vertical plates fixedly connected to the upper surface of the rotating plate are both rectangular structures, and the column fixedly connected to the upper surface of the rotating plate is a cylindrical structure. At the same time, the rotating plate, the vertical plates and the column together form an E-shaped structure.

[0007] Preferably, a plurality of auxiliary stirring plates are fixedly connected to the surface of the vertical plate at equal intervals in parallel along the length direction, and the auxiliary stirring plates are rectangular structures. At the same time, the vertical plates and the auxiliary stirring plates together form an E-shaped structure, and the outer side surface of the vertical plate fits the side surface of the inner cavity of the tower body.

[0008] Preferably, a plurality of main stirring plates are fixedly connected to the column at equal intervals in parallel along the length direction. The main stirring plates are funnel-shaped structures. At the same time, the column and the main stirring plates together form a Feng-shaped structure. At the same time, the crushing mesh is circular, the crushing mesh is located above the vertical plates and the column, and the liquid injection pipe communicated with the side surface of the tower body is located above the crushing mesh.

[0009] Preferably, the shunt pipe is a cylindrical structure. A plurality of gas injection pipes are fixedly connected to the lower surface of the shunt pipe at equal intervals in parallel along the length direction. The gas injection pipes are cylindrical structures. At the same time, a plurality of air holes are evenly opened at the lower ends of the gas injection pipes. At the same time, the shunt pipe and the gas injection pipes together form an E-shaped structure.

[0010] Preferably, the filter cotton is circular, the buffer groove opened in the middle of the filter cotton is circular, and a plurality of through holes are evenly opened on the upper and lower surfaces of the filter cotton respectively. The through holes opened on the upper surface of the filter cotton and the through holes opened on the lower surface of the filter cotton are arranged in a staggered manner. At the same time, the fixing frame is a grid-shaped structure, and a plurality of guide rods are evenly fixedly connected to the lower surface of the fixing frame. Through holes are correspondingly opened on the surface of the filter cotton at positions corresponding to the guide rods.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: Through the cooperation of the shunt pipe and the gas injection pipes, the flue gas can be directly injected into the neutralizing liquid, which is convenient for the removal and dust removal of the flue gas. And through the cooperation of the main motor, the rotating plate, the vertical plates, the column and the crushing mesh, the uniformity of the neutralizing liquid can be enhanced, ensuring the desulfurization effect of the neutralizing liquid on the flue gas, and at the same time, it can assist in crushing the bubbles formed by the flue gas in the neutralizing liquid, increasing the gas-liquid contact area, and enhancing the removal and dust removal effect of the neutralizing liquid on the flue gas. At the same time, through the cooperation of the filter cotton, the guide rods, the demister and the filter plate, the device can perform corresponding demisting treatment on the flue gas, avoiding the mist droplets from flowing out of the tower body along with the flue gas, reducing the probability of subsequent related structures being polluted and corroded. At the same time, the overall volume of the flue gas purification device is small, which can effectively reduce the installation space required, and reduce the production and installation costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a front view schematic diagram of an embodiment of the present utility model.

[0013] Figure 2 It is a side view schematic diagram of an embodiment of the utility model.

[0014] Figure 3 It is a top view schematic diagram of an embodiment of the utility model.

[0015] Figure 4 This is a schematic diagram of the structure of the rotating plate and the diverter pipe according to an embodiment of the utility model.

[0016] In the figure: 1. tower body; 2. rotating plate; 3. vertical plate; 4. air injection pipe; 5. crushing net; 6. liquid injection pipe; 7. air inlet pipe; 8. diverter pipe; 9. guide rod; 10. filter cotton; 11. fixing frame; 12. demister; 13. filter plate; 14. main stirring plate; 15. main motor; 16. column; 17. auxiliary stirring plate. DETAILED DESCRIPTION

[0017] Reference Figures 1 to 4 As shown, the utility model provides an integrated flue gas purification device for desulfurization, demisting and dust removal, comprising: a tower body 1, the bottom of the inner cavity of the tower body 1 is movably connected to a rotating plate 2 through a sealed bearing, and the lower surface of the tower body 1 is fixedly connected to a main motor 15, the output shaft of the main motor 15 is fixedly connected to the rotating plate 2 through a connecting piece, and the two ends of the upper surface of the rotating plate 2 are symmetrically connected to a vertical plate 3, and the middle part of the upper surface of the rotating plate 2 is fixedly connected to a column 16, and at the same time, the surface of the vertical rod is symmetrically connected to a secondary stirring plate 17, and the surface of the column 16 is symmetrically connected to a main stirring plate 14, and the lower end of the inner cavity of the tower body 1 is fixedly connected to a crushing net 5 and a diverter pipe 8 respectively, the lower surface of the diverter pipe 8 is symmetrically connected to an air injection pipe 4, one end of the diverter pipe 8 is connected to an air inlet pipe 7, and a filter cotton 10 is fixedly connected to the upper end of the inner cavity of the tower body 1 through a fixing frame 11, and the upper end of the inner cavity of the tower body 1 is fixedly connected to a demister 12 and a filter plate 13 respectively, and the demister 12 is located below the filter plate 13.

[0018] In this embodiment, the flue gas is injected into the shunt pipe 8 through the air inlet pipe 7, and the shunt pipe 8 injects the flue gas into the neutralizing liquid at the bottom of the inner cavity of the tower body 1 through the air injection pipe 4, so that the flue gas can contact with the neutralizing liquid to achieve desulfurization and dust removal, and the switch of the main motor 15 is started, and the output shaft of the main motor 15 drives the rotating plate 2 to rotate at a low speed through the connecting piece, and the rotating plate 2 drives the fixedly connected vertical plate 3, the auxiliary stirring plate 17, the column 16 and the main stirring plate 14 to rotate synchronously, so that the flue gas and the neutralizing liquid can fully contact, and the bubbles formed by the flue gas will be broken into smaller bubbles by the crushing net 5 during the floating process, thereby increasing the gas-liquid contact area, further enhancing the desulfurization and dust removal effect of the neutralizing liquid on the flue gas, and the flue gas in the process of moving upward The smoke will carry some droplets in the smoke, and then when the smoke passes through the filter cotton 10, the filter cotton 10 will initially filter and adsorb the droplets carried in the smoke, and when there are too many droplets adsorbed in the filter cotton 10, the droplets condense into liquid and can flow back to the neutralizing liquid through the guide rod 9, and then the smoke will pass through the demister 12 and the filter plate 13 in turn and flow out of the inner cavity of the tower body 1, wherein the demister 12 will perform a secondary treatment on the droplets remaining in the smoke, further improving the demisting effect of the device on the smoke, and the activated carbon filled in the filter plate 13 will perform a final adsorption treatment on the liquid carried in the smoke, thereby enhancing the purification effect of the device on the smoke, and the overall volume of the smoke purification device is relatively small, which can help reduce the cost of equipment installation.

[0019] As a preferred embodiment, the rotating plate 2 has a rectangular structure, the length of the rotating plate 2 is adapted to the diameter of the inner cavity of the tower body 1, and the end faces at both ends of the rotating plate 2 are both arc-shaped structures, and the end faces at both ends of the rotating plate 2 and the side faces of the inner cavity of the tower body 1 fit each other.

[0020] In this embodiment, if Figure 1 , Figure 3 and Figure 4 The sizes of the rotating plate 2 and the inner cavity of the tower body 1 are matched, and the end face of the rotating plate 2 and the side face of the inner cavity of the tower body 1 fit each other, which can effectively enhance the stability of the rotating plate 2 when rotating inside the tower body 1, and can also assist in cleaning the bottom of the inner cavity of the tower body 1.

[0021] As a preferred embodiment, the two groups of vertical plates 3 fixedly connected to the upper surface of the rotating plate 2 are both rectangular structures, and the columns 16 fixedly connected to the upper surface of the rotating plate 2 are cylindrical structures. At the same time, the rotating plate 2, the vertical plates 3 and the columns 16 are combined together to form an E-shaped structure.

[0022] In this embodiment, if Figure 1 , Figure 3 and Figure 4, the setting of the vertical plate 3 and the column 16 enables the rotating plate 2 to perform corresponding stirring treatment on the neutralizing liquid at different positions in the inner cavity of the tower body 1 during the rotation process, thereby ensuring the overall uniformity of the neutralizing liquid, and thus assisting in enhancing the desulfurization and dust removal effects of the neutralizing liquid on the flue gas.

[0023] As a preferred embodiment, a plurality of groups of secondary stirring plates 17 are fixedly connected to the surface of the vertical plate 3 at equal intervals in the length direction. The secondary stirring plates 17 are rectangular structures, and the vertical plate 3 and the secondary stirring plates 17 together form an E-shaped structure. At the same time, the outer side of the vertical plate 3 fits the side surface of the inner cavity of the tower body 1.

[0024] In this embodiment, as Figure 1 and Figure 3 , the mutual fitting of the vertical plate 3 and the side surface of the inner cavity of the tower body 1 can not only assist in enhancing the stability of the vertical plate 3 during rotation, ensure the stirring effect of the secondary stirring plates 17 on the neutralizing liquid, but also perform corresponding auxiliary cleaning on the side surface of the inner cavity of the tower body 1.

[0025] As a preferred embodiment, a plurality of groups of main stirring plates 14 are fixedly connected to the column 16 at equal intervals in the length direction. The main stirring plates 14 are funnel-shaped structures, and the column 16 and the main stirring plates 14 together form a rich-character structure. At the same time, the crushing mesh 5 is circular in structure, the crushing mesh 5 is located above the vertical plate 3 and the column 16, and the liquid injection pipe 6 connected to the side of the tower body 1 is located above the crushing mesh 5.

[0026] In this embodiment, as Figure 1 , Figure 3 and Figure 4 , the setting of the main stirring plates 14 can assist in enhancing the stirring effect of the column 16 on the neutralizing liquid, ensure the overall uniformity of the neutralizing liquid. At the same time, the setting of the crushing mesh 5 enables the flue gas bubbles in the neutralizing liquid to be further split into smaller bubbles, increasing the gas-liquid contact area, thereby being able to assist in enhancing the desulfurization and dust removal effects of the neutralizing liquid on the flue gas.

[0027] As a preferred embodiment, the shunt pipe 8 is cylindrical in structure. A plurality of groups of gas injection pipes 4 are fixedly connected to the lower surface of the shunt pipe 8 at equal intervals in the length direction. The gas injection pipes 4 are cylindrical structures, and a plurality of groups of air holes are evenly opened at the lower ends of the gas injection pipes 4. At the same time, the shunt pipe 8 and the gas injection pipes 4 together form an E-shaped structure.

[0028] In this embodiment, as Figure 1 and Figure 4The cooperation between the diverter pipe 8 and the gas injection pipe 4 enables the flue gas to be relatively evenly injected into different positions of the neutralizing liquid, thereby effectively reducing the probability of reduced desulfurization efficiency due to excessive flue gas injection into a certain position of the neutralizing liquid, ensuring the effect of gas-liquid contact, enhancing the desulfurization and dust removal effects of the device on the flue gas, and also effectively reducing the probability of droplet generation, thereby helping to reduce the difficulty of subsequent demisting.

[0029] As a preferred embodiment, the filter cotton 10 has a circular structure, the buffer groove opened in the middle of the filter cotton 10 has a circular structure, and a plurality of groups of through holes are evenly opened on the upper and lower surfaces of the filter cotton 10, and the through holes opened on the upper surface of the filter cotton 10 and the through holes opened on the lower surface of the filter cotton 10 are staggered. At the same time, the fixing frame 11 has a grid-shaped structure, and the lower surface of the fixing frame 11 is evenly fixedly connected to a plurality of groups of guide rods 9, and through holes are opened corresponding to the position of the surface of the filter cotton 10 relative to the guide rods 9.

[0030] In this embodiment, if Figure 1 and Figure 2 The filter cotton 10 adopts acid- and alkali-resistant water-absorbing sponge, which can effectively enhance the adsorption and filtration effect of the filter cotton 10 on liquids such as droplets in the flue gas, and can further assist in enhancing the effect of subsequent defogger treatment. The setting of the guide rod 9 makes it easy to concentrate the excessive droplet liquid accumulated in the filter cotton 10 into the neutralization liquid, thereby improving the reflux efficiency of the droplets.

[0031] The integrated flue gas purification device for desulfurization, demisting and dust removal of the utility model can simultaneously perform desulfurization and dust removal on the flue gas through the cooperation of the main motor 15, the rotating plate 2, the vertical plate 3, the column 16 and the crushing net 5, thereby improving the purification efficiency of the device on the flue gas. At the same time, through the multiple cooperation of the filter cotton 10, the demister 12 and the adsorption plate, it can not only enhance the purification effect of the flue gas purification device on the droplets in the flue gas, but also perform corresponding auxiliary filtration on the remaining liquid carried in the flue gas, thereby enhancing the purification effect of the device on the flue gas.

Claims

1. A flue gas purification device integrating desulfurization, demisting and dust removal, comprising: The tower body (1) is characterized in that: the bottom of the inner cavity of the tower body (1) is movably connected to the rotating plate (2) through a sealed bearing, and the lower surface of the tower body (1) is fixedly connected to the main motor (15), the output shaft of the main motor (15) is fixedly connected to the rotating plate (2) through a connecting piece, and the two ends of the upper surface of the rotating plate (2) are symmetrically connected to the vertical plate (3), and the middle of the upper surface of the rotating plate (2) is fixedly connected to the column (16), and at the same time, the surface of the vertical rod is symmetrically connected to the auxiliary stirring plate (17), and the surface of the column (16) is symmetrical The main stirring plate (14) is connected, and the lower end of the inner cavity of the tower body (1) is fixedly connected to the crushing net (5) and the diverter pipe (8), the lower surface of the diverter pipe (8) is symmetrically connected to the air injection pipe (4), one end of the diverter pipe (8) is connected to the air inlet pipe (7), and the filter cotton (10) is fixedly connected to the upper end of the inner cavity of the tower body (1) through a fixing frame (11), and the upper end of the inner cavity of the tower body (1) is fixedly connected to the demister (12) and the filter plate (13), and the demister (12) is located below the filter plate (13).

2. The exhaust gas purification device integrating desulfurization, demisting and dust removal according to claim 1 is characterized in that: The rotating plate (2) is of rectangular structure, the length of the rotating plate (2) is matched to the diameter of the inner cavity of the tower body (1), and the end surfaces at both ends of the rotating plate (2) are of arc-shaped structure, and the end surfaces at both ends of the rotating plate (2) and the side surfaces of the inner cavity of the tower body (1) fit each other.

3. The exhaust gas purification device integrating desulfurization, demisting and dust removal according to claim 1 is characterized in that: The two groups of vertical plates (3) fixedly connected to the upper surface of the rotating plate (2) are both rectangular in structure, and the vertical columns (16) fixedly connected to the upper surface of the rotating plate (2) are cylindrical in structure. The rotating plate (2), the vertical plates (3) and the vertical columns (16) are combined together to form an E-shaped structure.

4. The exhaust gas purification device integrating desulfurization, demisting and dust removal according to claim 1 is characterized in that: The surface of the vertical plate (3) is fixedly connected with a plurality of auxiliary stirring plates (17) in parallel and at equal intervals along the length direction, and the auxiliary stirring plates (17) are in a rectangular structure. The vertical plate (3) and the auxiliary stirring plates (17) are combined together to form an E-shaped structure, and the outer side surface of the vertical plate (3) fits the side surface of the inner cavity of the tower body (1).

5. The exhaust gas purification device integrating desulfurization, demisting and dust removal according to claim 1 is characterized in that: The columns (16) are parallel to and evenly spaced from each other along the length direction to fix and connect a plurality of groups of main stirring plates (14), the main stirring plates (14) are in a funnel-shaped structure, and the columns (16) and the main stirring plates (14) are combined together to form a "F"-shaped structure. The crushing net (5) is in a circular structure, the crushing net (5) is located above the columns (3) and the columns (16), and the injection pipe (6) connected to the side of the tower body (1) is located above the crushing net (5).

6. The exhaust gas purification device integrating desulfurization, demisting and dust removal according to claim 1 is characterized in that: The shunt pipe (8) is of cylindrical structure, and the lower surface of the shunt pipe (8) is fixedly connected with multiple groups of gas injection pipes (4) in parallel and at equal intervals along the length direction, and the gas injection pipe (4) is of cylindrical structure, and multiple groups of air holes are evenly opened at the lower end of the gas injection pipe (4), and the shunt pipe (8) and the gas injection pipe (4) are combined together to form an E-shaped structure.

7. The exhaust gas purification device integrating desulfurization, demisting and dust removal according to claim 1 is characterized in that: The filter cotton (10) has a circular structure, the buffer groove in the middle of the filter cotton (10) has a circular structure, and the upper and lower surfaces of the filter cotton (10) are respectively and evenly provided with a plurality of through holes, and the through holes on the upper surface of the filter cotton (10) and the through holes on the lower surface of the filter cotton (10) are staggered, and the fixing frame (11) has a grid-shaped structure, and the lower surface of the fixing frame (11) is evenly fixedly connected with a plurality of guide rods (9), and the through holes are provided on the surface of the filter cotton (10) corresponding to the position of the guide rods (9).

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