Power plant desulfurization device with automatic desulfurization function

Abstract

The utility model discloses an automatic desulfurization power plant desulfurization device which comprises a desulfurization tower, a gas inlet pipe is arranged on the left side of the lower part of the desulfurization tower, and one end of the gas inlet pipe is connected with a shunt pipe through a flange; according to the utility model, the shunting pipe with the plurality of branch pipes is arranged on the gas inlet pipe, so that sulfur-containing flue gas can be shunted under the action of the plurality of branch pipes and is introduced into desulfurization slurry at the bottom of the desulfurization tower under the action of the plurality of through holes, and an immersion type pre-desulfurization effect is achieved before spray desulfurization; a feeding port with a sealing plug is formed in the top face of a desulfurizing agent disc of the desulfurizing tower, a discharging port provided with a shielding disc is formed in the bottom face of the desulfurizing agent disc, and a center shaft rotationally connected with the circle center of the desulfurizing agent disc through a bearing is combined, so that a worker pushes the shielding disc at a left maintenance port; and the shielding disc is promoted to force the central shaft to rotate under the action of the connecting rod, so that the shielding disc is separated from the state of shielding the discharge port, and the invalid desulfurizer filler is easily discharged.

Description

Technical Field

[0001] This utility model relates to the field of desulfurization equipment technology, and in particular to an automatic desulfurization power plant desulfurization equipment. Background Technology

[0002] During the operation of thermal power plants, a large amount of coal is consumed, which generates a large amount of emissions. Coal contains sulfur, which forms sulfur dioxide and other products when burned, causing air pollution. Therefore, desulfurization treatment is required before emissions.

[0003] In the existing technology, a typical desulfurization device is a desulfurization tower, which is vertically placed on the ground supported by a bracket. It uses built-in desulfurizing agent packing and circulating spray desulfurization slurry to automatically desulfurize the flue gas. When the packing needs to be replaced, the waste packing is discharged from the discharge port at the bottom, and the new desulfurizing agent packing is put into the desulfurization tower body through the feed port at the top. However, since the carrier that holds the desulfurizing agent packing in the desulfurization tower often adopts a conventional opening and closing method (e.g., bolt fixing), it causes inconvenience for replacing the desulfurizing agent packing.

[0004] Therefore, an automatic desulfurization power plant desulfurization device is proposed, which has the advantages of easy flue gas desulfurization and convenient desulfurizing agent replacement, thereby solving the problems in the background technology mentioned above. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an automatic desulfurization device for power plants.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: an automatic desulfurization power plant desulfurization device, comprising a desulfurization tower, an air inlet pipe provided on the lower left side of the desulfurization tower, one end of the air inlet pipe being connected to a branch pipe via a flange, one end of the branch pipe being connected to several branch pipes, and the bottom end of each branch pipe extending into the desulfurization slurry injected inside the desulfurization tower, and several through holes being opened on the surface of each branch pipe; a slurry pipe connected to the desulfurization slurry is provided on the right side wall of the desulfurization tower, and a circulation pump is installed on the surface of the slurry pipe; the upper surface of the slurry pipe is connected to two spray pipes extending into the interior of the desulfurization tower, and each spray pipe... The surface of the desulfurization tower is equidistantly equipped with several atomizing nozzles. Inside the desulfurization tower, there are two desulfurizing agent trays corresponding to the spray pipes. Each desulfurizing agent tray has a feed inlet on its top surface and a discharge outlet on its bottom surface. A central shaft is connected to the center of the desulfurizing agent tray via a bearing, and a connecting rod is fixed to the bottom of the central shaft via a metal ring. A shielding disc is welded to one end of the connecting rod, and the shielding disc corresponds to the discharge outlet on the bottom surface of the desulfurizing agent tray. A gas-water separator is installed on the upper part of the inner side of the desulfurization tower, and the gas-water separator is located above the spray pipes. The left and right sides of the desulfurization tower are respectively provided with a left maintenance port and a right maintenance port corresponding to the desulfurizing agent trays.

[0007] As a further description of the above technical solution: a filter plate is installed at the inner corner of the desulfurization tower corresponding to the slurry pipe, and the filter plate is inclined about the desulfurization tower.

[0008] As a further description of the above technical solution: the size of the shielding disc is larger than the size of the discharge port, and a support column is welded to the bottom surface of the shielding disc.

[0009] As a further description of the above technical solution: both the left and right maintenance ports have sealing plates fixedly installed on their end faces by bolts.

[0010] As a further description of the above technical solution: a sealing plug is movably disposed inside the feed inlet, and the sealing plug has a T-shaped cross-section.

[0011] As a further description of the above technical solution: the internal cavity of the desulfurizing agent disk is filled with desulfurizing agent filler, and a circular filter screen is fixed on both the top and bottom surfaces of the desulfurizing agent disk, and the pore size of the circular filter screen is smaller than the particle size of the desulfurizing agent filler.

[0012] This utility model has the following beneficial effects:

[0013] In this invention, a diversion pipe with several branch pipes is installed on the inlet pipe. The sulfur-containing flue gas is diverted by the branch pipes and then passed into the desulfurization slurry at the bottom of the desulfurization tower through several through holes, achieving the effect of immersion pre-desulfurization before spray desulfurization. A feed inlet with a sealing plug is opened on the top surface of the desulfurizing agent pan in the desulfurization tower, and a discharge port equipped with a shielding disc is opened on the bottom surface of the desulfurizing agent pan. Combined with a central shaft that is rotatably connected to the center of the desulfurizing agent pan by bearings, the operator pushes the shielding disc at the left maintenance port, causing the shielding disc to force the central shaft to rotate under the action of the connecting rod. This causes the shielding disc to disengage from the state of shielding the discharge port, making it easy to discharge the ineffective desulfurizing agent packing. The purpose of adding desulfurizing agent packing is achieved by removing the sealing plug in the feed inlet, thus providing convenience for the replacement of desulfurizing agent packing. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of an automatic desulfurization device for power plants according to the present invention.

[0015] Figure 2 This is a schematic diagram of the inlet pipe and diversion pipe of an automatic desulfurization device for power plants according to the present invention.

[0016] Figure 3 This is a bottom view of the desulfurizing agent pan of an automatic desulfurization power plant desulfurization device according to this utility model.

[0017] Legend:

[0018] 1. Desulfurization tower; 2. Inlet pipe; 3. Gas-liquid separator; 4. Slurry pipe; 5. Circulating pump; 6. Filter plate; 7. Spray pipe; 8. Atomizing nozzle; 9. Right maintenance port; 10. Left maintenance port; 11. Desulfurizing agent tray; 12. Diverter pipe; 13. Branch pipe; 14. Through hole; 15. Central shaft; 16. Discharge port; 17. Inlet port; 18. Sealing plug; 19. Shielding disc; 20. Connecting rod. Detailed Implementation

[0019] 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.

[0020] According to an embodiment of the present invention, an automatic desulfurization device for power plants is provided.

[0021] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-3As shown, an automatic desulfurization power plant desulfurization device according to an embodiment of the present invention includes a desulfurization tower 1. An air inlet pipe 2 is provided on the lower left side of the desulfurization tower 1, and one end of the air inlet pipe 2 is connected to a branch pipe 12 via a flange. One end of the branch pipe 12 is connected to several branch pipes 13, and the bottom end of each branch pipe 13 extends into the desulfurization slurry injected into the desulfurization tower 1. Several through holes 14 are provided on the surface of each branch pipe 13. The right side wall of the desulfurization tower 1 is provided with... A slurry pipe 4 is connected to the sulfur slurry, and a circulating pump 5 is installed on the surface of the slurry pipe 4. The upper surface of the slurry pipe 4 is connected to two spray pipes 7 extending into the desulfurization tower 1, and several atomizing nozzles 8 are evenly arranged on the surface of each spray pipe 7. Two desulfurizing agent trays 11 are arranged inside the desulfurization tower 1 corresponding to the spray pipes 7, and each desulfurizing agent tray 11 has a feed inlet 17 on its top surface and a discharge outlet 16 on its bottom surface. The circular shape of the desulfurizing agent tray 11 is... A central shaft 15 is connected to the core via a bearing, and a connecting rod 20 is fixed to the bottom of the central shaft 15 via a metal ring. A shielding disc 19 is welded to one end of the connecting rod 20, and the shielding disc 19 corresponds to the discharge port 16 on the bottom surface of the desulfurizing agent disc 11. A gas-water separator 3 is installed on the upper inner side of the desulfurization tower 1, and the gas-water separator 3 is located above the spray pipe 7. The left and right sides of the desulfurization tower 1 are respectively provided with a left maintenance port 10 and a right maintenance port 9 corresponding to the desulfurizing agent disc 11. In order to prevent the shielding disc 19 from deviating due to various factors, a magnet is also provided on the surface of the shielding disc 19 to be attracted and connected to the bottom surface of the desulfurizing agent disc 11. The circulating pump 5 is equipped with a matching control switch and is electrically connected to an external power supply. The installation position of the control switch is selected according to the actual use requirements, so as to facilitate the operation and control by the operator. The desulfurizing agent disc 11 is located below the spray pipe 7. All parts of the desulfurization tower 1 not mentioned are the same as or can be implemented using existing technology.

[0022] In one embodiment, a filter plate 6 is installed at the inner corner of the desulfurization tower 1 corresponding to the slurry pipe 4, and the filter plate 6 is inclined about the desulfurization tower 1. The filter plate 6 can easily filter out solid impurities in the desulfurization slurry. The filter plate 6 adopts a conventional detachable installation method, which is easy to replace and maintain later. In order to facilitate the replacement and maintenance of the filter plate 6, another right maintenance port 9 is provided on the right side wall of the desulfurization tower 1.

[0023] In one embodiment, the size of the shielding disc 19 is larger than the size of the discharge port 16, and a support is welded to the bottom surface of the shielding disc 19. The support allows the operator to push the shielding disc 19 to rotate, making it easy to adjust the position of the shielding disc 19.

[0024] In one embodiment, sealing plates are fixedly installed on the end faces of both the left maintenance port 10 and the right maintenance port 9 by bolts. The sealing plates maintain the airtightness of the desulfurization tower 1 and prevent the leakage of sulfur-containing flue gas.

[0025] In one embodiment, a sealing plug 18 is movably disposed inside the feed inlet 17, and the sealing plug 18 has a T-shaped cross-section. The sealing plug 18 is used to prevent the desulfurizing agent filler from coming out.

[0026] In one embodiment, the internal cavity of the desulfurizing agent disk 11 is filled with desulfurizing agent filler, and a circular filter screen is fixed on both the top and bottom surfaces of the desulfurizing agent disk 11. The pore size of the circular filter screen is smaller than the particle size of the desulfurizing agent filler. The circular filter screen facilitates the passage of sulfur-containing flue gas, which is beneficial for spray desulfurization.

[0027] Working principle:

[0028] In use, when sulfur-containing flue gas is introduced, the flue gas inside the inlet pipe 2 is diverted by the branch pipes 12 with several branch pipes 13, and then passed into the desulfurization slurry at the bottom of the desulfurization tower 1 through several through holes 14, achieving the effect of immersion pre-desulfurization before spray desulfurization. During this process, the circulating pump 5 is started to spray the desulfurization slurry from several atomizing nozzles 8 of the spray pipe 7 to spray desulfurize the sulfur-containing flue gas flowing from bottom to top. At this time, the desulfurizing agent plate 11 located below the spray pipe 7 can use its built-in... The desulfurizing agent packing is used for auxiliary desulfurization. When the desulfurizing agent packing needs to be replaced, the staff opens the left maintenance port 10 and the right maintenance port 9 of the corresponding desulfurizing agent disc 11. The staff pushes the blocking disc 19 at the left maintenance port 10, which causes the central shaft 15 at the center of the desulfurizing agent disc 11 to rotate under the action of the connecting rod 20. This causes the blocking disc 19 to disengage from the state of blocking the discharge port 16, making it easier to discharge the ineffective desulfurizing agent packing. The purpose of adding desulfurizing agent packing is achieved by removing the sealing plug 18 in the feed port 17, thus providing convenience for the replacement of the desulfurizing agent packing.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic desulfurization power plant desulfurization device, comprising a desulfurization tower (1), characterized in that: An air inlet pipe (2) is provided on the lower left side of the desulfurization tower (1), and one end of the air inlet pipe (2) is connected to a branch pipe (12) through a flange. One end of the branch pipe (12) is connected to several branch pipes (13), and the bottom end of each branch pipe (13) extends into the desulfurization slurry injected into the desulfurization tower (1). Several through holes (14) are opened on the surface of each branch pipe (13). A slurry pipe (4) connected to the desulfurization slurry is provided on the right side wall of the desulfurization tower (1), and a circulation pump (5) is installed on the surface of the slurry pipe (4). Two spray pipes (7) extending into the desulfurization tower (1) are connected to the upper surface of the slurry pipe (4), and several atomizing nozzles (8) are equidistantly arranged on the surface of each spray pipe (7). The interior of the desulfurization tower (1) corresponds to the spray pipes (7). Two desulfurizing agent trays (11) are provided, and each desulfurizing agent tray (11) has a feed inlet (17) on its top surface and a discharge outlet (16) on its bottom surface. A central shaft (15) is connected to the center of the desulfurizing agent tray (11) through a bearing, and a connecting rod (20) is fixed to the bottom end of the central shaft (15) through a metal ring. A shielding disc (19) is welded to one end of the connecting rod (20), and the shielding disc (19) corresponds to the discharge outlet (16) on the bottom surface of the desulfurizing agent tray (11). A gas-water separator (3) is installed on the upper inner side of the desulfurization tower (1), and the gas-water separator (3) is located above the spray pipe (7). A left maintenance port (10) and a right maintenance port (9) are respectively opened on the left and right sides of the desulfurizing tower (1) corresponding to the desulfurizing agent tray (11).

2. The automatic desulfurization power plant desulfurization device according to claim 1, characterized in that: A filter plate (6) is installed at the inner corner of the desulfurization tower (1) corresponding to the slurry pipe (4), and the filter plate (6) is inclined about the desulfurization tower (1).

3. The automatic desulfurization power plant desulfurization device according to claim 1, characterized in that: The size of the shielding disc (19) is larger than the size of the discharge port (16), and a support is welded to the bottom surface of the shielding disc (19).

4. The automatic desulfurization power plant desulfurization device according to claim 1, characterized in that: The end faces of the left maintenance port (10) and the right maintenance port (9) are both fixed with sealing plates by bolts.

5. The automatic desulfurization power plant desulfurization device according to claim 1, characterized in that: A sealing plug (18) is movably disposed inside the feed inlet (17), and the sealing plug (18) has a T-shaped cross-section.

6. The automatic desulfurization power plant desulfurization device according to claim 1, characterized in that: The cavity inside the desulfurizing agent disk (11) is filled with desulfurizing agent filler, and a circular filter screen is fixed on both the top and bottom surfaces of the desulfurizing agent disk (11), and the pore size of the circular filter screen is smaller than the particle size of the desulfurizing agent filler.

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