Wet desulphurization equipment for treating boiler flue gas

Abstract

The utility model relates to the technical field of wet desulphurization equipment, and discloses wet desulphurization equipment for treating boiler flue gas, which comprises a tower body, a smoke exhaust pipe positioned on the tower body and a blow-off pipe positioned below the tower body, the bottom of the tower body is fixedly connected with a smoke inlet pipe, a filter plate is arranged above one end of the smoke inlet pipe penetrating through the interior of the tower body, and the other end of the smoke inlet pipe is fixedly connected with the blow-off pipe. A rotating pipe is arranged above the filter plate, two groups of rotating plates are fixedly connected to the surface of the rotating pipe, a plurality of liquid conveying pipes fixedly connected with the rotating pipe are arranged between the two groups of rotating plates, an annular liquid pipe is fixedly connected to the other end of each liquid conveying pipe, and a plurality of atomizing nozzles are fixedly connected to the lower ends of the annular liquid pipe and the liquid conveying pipes. Smoke is conveyed into the conveying pipe and the annular smoke pipe and then is sprayed out through the gas spraying head, so that the smoke is uniformly sprayed into the tower body, and the situation that an alkaline solution cannot sufficiently react with the smoke due to the fact that the smoke is mainly concentrated in a central area is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of wet desulfurization equipment, and more specifically, to a wet desulfurization equipment for treating boiler flue gas. Background Art

[0002] Flue gas desulfurization technology mainly uses various alkaline absorbents or adsorbents to capture sulfur dioxide in flue gas and convert it into relatively stable and easily mechanically separated sulfur compounds or elemental sulfur, thereby achieving the purpose of desulfurization. Wet desulfurization uses liquid absorbents such as water or alkaline solutions (or slurries) to wash and remove sulfur dioxide.

[0003] When the wet flue gas desulfurization equipment is in use, the flue gas is input into the tower body through the smoke inlet pipe by an air pump, and at the same time, the alkaline solution is input into the atomizing nozzle through the alkaline solution pipe by a water pump. Then the nozzle atomizes the alkaline solution and sprays it into the tower body to contact and react with the flue gas, thereby achieving the desulfurization effect. However, since the nozzle is fixed, the area covered by the atomized alkaline solution is small, and the concentration of the atomized alkaline solution in the spraying area is different, so that the flue gas cannot fully contact with the alkaline solution, thereby reducing the desulfurization effect. In addition, during long-term desulfurization, the alkaline solution that falls on the filter material is prone to deposition and forms a hard shell, which reduces the contact area between the flue gas and the liquid film on the surface of the filter material, thereby further reducing the desulfurization effect. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the utility model provides a wet desulfurization equipment for treating boiler flue gas.

[0005] The utility model provides a wet desulfurization equipment for treating boiler flue gas, which adopts the following technical scheme:

[0006] A wet desulfurization device for treating boiler flue gas, comprising a tower body, a smoke exhaust pipe located on the tower body, and a sewage pipe located under the tower body, wherein a smoke inlet pipe is fixedly connected to the bottom of the tower body, a filter plate is arranged above the smoke inlet pipe which penetrates through the inside of the tower body, a rotating pipe is arranged above the filter plate, two groups of rotating plates are fixedly connected to the surface of the rotating pipe, a plurality of liquid infusion pipes fixedly connected to the rotating pipe are arranged between the two groups of rotating plates, the other end of the liquid infusion pipe is fixedly connected to an annular liquid pipe, the lower ends of the annular liquid pipe and the liquid infusion pipe are fixedly connected to a plurality of atomizing nozzles, a gas gathering bucket fixedly connected to the inner wall of the tower body is arranged above the rotating plate, the rotating pipe extends to the outer end of the smoke exhaust pipe and is rotatably connected to an alkaline solution pipe, a driving mechanism is installed on the surface of the rotating pipe, and the driving mechanism drives the rotating pipe to rotate

[0007] Preferably, one end of the smoke inlet pipe inserted into the tower body is fixedly connected to a plurality of delivery pipes, the other end of the delivery pipe is fixedly connected to an annular smoke pipe, and the tops of the delivery pipe and the annular smoke pipe are fixedly connected to a plurality of nozzles.

[0008] Preferably, a fixed plate is rotatably connected to the surface of the rotating tube, and both ends of the fixed plate are fixedly mounted on the inner wall of the tower body.

[0009] Preferably, the driving mechanism includes a motor located on the tower body, the output end of the motor is inserted into the smoke exhaust pipe and fixedly connected to bevel gear 2, the surface of bevel gear 2 is rotatably connected to bevel gear 1, and bevel gear 1 is fixedly connected to the rotating tube.

[0010] Preferably, the atomizing nozzles are arranged at equal intervals on the infusion tube and the annular liquid tube, and the infusion tubes are radially arranged on the surface of the rotating tube.

[0011] Preferably, a plurality of the air jets are arranged at equal intervals on the delivery pipe and the annular smoke pipe, and the delivery pipes are radially arranged on the surface of the smoke inlet pipe.

[0012] Preferably, the bottom end of the tower body is fixedly connected with a support rod.

[0013] Preferably, a rotating plate located below the annular liquid pipe is in contact with the surface of the filter plate to clean impurities on the surface of the filter plate.

[0014] In summary, the utility model includes the following beneficial technical effects:

[0015] 1. The utility model realizes uniform injection of the smoke into the tower body by conveying the smoke into the conveying pipe and the annular smoke pipe, and then the smoke is ejected through the nozzle, thereby preventing the smoke from being mainly concentrated in the central area, resulting in insufficient reaction of the alkaline solution with the smoke.

[0016] 2. The utility model drives the rotating tube to rotate through a driving mechanism, and the rotation of the rotating tube drives the infusion tube and the annular liquid tube to rotate. At the same time, the alkaline solution enters the interior of the rotating tube, the infusion tube and the annular liquid tube through the alkaline solution tube, and then the alkaline solution is atomized and sprayed out through the atomizing nozzle, so that the concentration of the atomized alkaline solution in the entire spraying area is the same, so that the alkaline solution and the flue gas can fully react to achieve the purpose of desulfurization.

[0017] 3. The utility model drives two sets of rotating plates to rotate simultaneously through the rotation of the rotating tube. The rotation of the rotating plates drives the flue gas and the atomized alkaline solution to rotate and flow upward, so that the flue gas and the atomized alkaline solution can be fully mixed to remove the sulfur in the flue gas. At the same time, the rotating plate located at the lower end of the annular liquid pipe cleans up the impurities on the surface of the filter plate to prevent the impurities from clogging the air holes of the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front structural schematic diagram of an embodiment of the utility model;

[0019] Figure 2 It is a schematic diagram of the internal structure in an embodiment of the utility model.

[0020] Explanation of the reference numerals: 1. tower body; 2. smoke inlet pipe; 3. delivery pipe; 4. annular smoke pipe; 5. nozzle; 6. filter plate; 7. rotating pipe; 71. fixed plate; 8. rotating plate; 9. liquid infusion pipe; 10. annular liquid pipe; 101. atomizing nozzle; 11. gas collecting bucket; 12. bevel gear one; 13. bevel gear two; 14. motor; 15. smoke exhaust pipe; 16. alkaline solution pipe; 17. sewage pipe. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-2 The utility model is described in further detail.

[0022] It should be noted that the drawings are schematic and not to scale. For the sake of clarity and convenience, the relative sizes and proportions of the parts shown in the drawings are exaggerated or reduced in size, and any size is only illustrative and not restrictive. In addition, the same reference symbol is used for the same structure, element or accessory appearing in more than two figures to reflect similar features.

[0023] The utility model embodiment discloses a wet desulfurization device for treating boiler flue gas. Figure 1-2 A wet desulfurization device for treating boiler flue gas comprises a tower body 1, a smoke exhaust pipe 15 located on the tower body 1, and a sewage exhaust pipe 17 located under the tower body 1. The bottom of the tower body 1 is fixedly connected with three support rods, and the three support rods are used to support the tower body 1. The bottom of the tower body 1 is fixedly connected with a smoke inlet pipe 2, and one end of the smoke inlet pipe 2 inserted into the tower body 1 is fixedly connected with a plurality of conveying pipes 3, and the conveying pipes 3 are radially arranged on the surface of the smoke inlet pipe 2, and the other end of the conveying pipe 3 is fixedly connected with an annular smoke pipe 4, and the tops of the conveying pipe 3 and the annular smoke pipe 4 are fixedly connected with a plurality of nozzles 5, and the plurality of nozzles 5 are arranged on the conveying pipe 3 and the annular smoke pipe 4 at equal intervals, and a filter plate 6 is provided above the smoke inlet pipe 2 inserted into the tower body 1;

[0024] Specifically, the smoke enters each conveying pipe 3 through the smoke inlet pipe 2, and then enters the annular smoke pipe 4 through the conveying pipe 3, and then the smoke is ejected into the tower body 1 through the nozzles 5 on the conveying pipe 3 and the annular smoke pipe 4;

[0025] Through the above structural design, the flue gas is evenly sprayed into the tower body 1, preventing the flue gas from being concentrated in the central area, resulting in insufficient reaction of the alkaline solution with the flue gas.

[0026] Reference Figure 2 As shown, a rotating tube 7 is provided above the filter plate 6, and a fixed plate 71 is rotatably connected to the surface of the rotating tube 7, and both ends of the fixed plate 71 are fixedly installed on the inner wall of the tower body 1 for supporting the rotating tube 7, and two groups of rotating plates 8 are fixedly connected to the surface of the rotating tube 7, and a plurality of infusion tubes 9 fixedly connected to the rotating tube 7 are provided between the two rotating plates 8, and the infusion tubes 9 are radially arranged on the surface of the rotating tube 7, and the other end of the infusion tube 9 is fixedly connected to an annular liquid pipe 10, and the lower ends of the annular liquid pipe 10 and the infusion tube 9 are fixedly connected to a plurality of atomizing nozzles 101, and the atomizing nozzles 101 are arranged on the infusion tube 9 and the annular liquid pipe 10 at equal intervals, and the rotating plate 8 located below the annular liquid pipe 10 contacts with the surface of the filter plate 6 for cleaning impurities on the surface of the filter plate 6, and a gas collecting bucket 11 fixedly connected to the inner wall of the tower body 1 is provided above the rotating plate 8 to slow down the flow of air, and the rotating tube 7 extends to the outer end of the smoke exhaust pipe 15 and is rotatably connected to an alkaline solution pipe 16;

[0027] Specifically, the alkaline solution enters the rotating tube 7 through the alkaline solution pipe 16, and then enters the annular liquid pipe 10 through the rotating tube 7 and the liquid infusion pipe 9. Then, the atomizing nozzle 101 atomizes and sprays the alkaline solution to form an atomizing area in the tower body 1, so that the alkaline solution and the flue gas are in contact with each other and react fully to separate the sulfur in the flue gas.

[0028] Through the above structural design, the concentration of the atomized alkaline solution in the entire spraying area is made the same, so that the alkaline solution and the flue gas can fully react to achieve the purpose of desulfurization;

[0029] Reference Figure 2 As shown, a driving mechanism is installed on the surface of the rotating tube 7, and the driving mechanism includes a motor 14 located on the tower body 1, and the output end of the motor 14 is inserted into the smoke exhaust pipe 15 and fixedly connected to a bevel gear 2 13, and the surface of the bevel gear 2 13 is rotatably connected to a bevel gear 12, and the bevel gear 12 is fixedly connected to the rotating tube 7;

[0030] Specifically, the motor 14 is started to drive the bevel gear 2 13 to rotate, the bevel gear 2 13 rotates to drive the bevel gear 1 12 to rotate, the bevel gear 1 12 rotates to drive the rotating tube 7 to rotate, the rotating tube 7 rotates to drive the rotating plate 8 and the liquid infusion tube 9 and the annular liquid tube 10 to rotate, the rotating plate 8 rotates to drive the flue gas to rotate and flow upward, so that the flue gas and the atomized alkaline solution can be fully mixed, and the impurities on the surface of the filter plate 6 are cleaned to prevent the filter holes of the filter plate 6 from being blocked, the liquid infusion tube 9 and the annular liquid tube 10 spray the atomized alkaline solution through the atomizing nozzle 101, and the atomized alkaline solution is scattered in a circle in the inner cavity of the tower body 1, so that the flue gas and the atomized alkaline solution are fully in contact, and the sulfur in the flue gas is separated;

[0031] Through the above structural design, the flue gas and the atomized alkaline solution can be fully mixed to remove the sulfur in the flue gas. At the same time, the rotating plate 8 located at the lower end of the annular liquid pipe 10 cleans the impurities on the surface of the filter plate 6 to prevent the impurities from clogging the air holes of the filter plate 6.

[0032] Finally, a few points should be explained: First, in the description of the present utility model, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection; "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0033] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0034] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A wet desulfurization device for treating boiler flue gas, comprising a tower body (1), a smoke exhaust pipe (15) located on the tower body (1), and a sewage exhaust pipe (17) located under the tower body (1), characterized in that: A smoke inlet pipe (2) is fixedly connected to the bottom of the tower body (1); a filter plate (6) is provided above one end of the smoke inlet pipe (2) that penetrates the interior of the tower body (1); a rotating tube (7) is provided above the filter plate (6); two groups of rotating plates (8) are fixedly connected to the surface of the rotating tube (7); a plurality of liquid infusion pipes (9) fixedly connected to the rotating tube (7) are provided between the two groups of rotating plates (8); an annular liquid pipe (10) is fixedly connected to the other end of the liquid infusion pipe (9); a plurality of atomizing nozzles (101) are fixedly connected to the lower ends of the annular liquid pipe (10) and the liquid infusion pipe (9); a gas collecting hopper (11) fixedly connected to the inner wall of the tower body (1) is provided above the rotating plate (8); an alkaline solution pipe (16) is rotatably connected to one end of the rotating tube (7) that extends to the outside of the smoke exhaust pipe (15); a driving mechanism is installed on the surface of the rotating tube (7); the driving mechanism drives the rotating tube (7) to rotate.

2. A wet desulfurization equipment for treating boiler flue gas according to claim 1, characterized in that: One end of the smoke inlet pipe (2) inserted into the tower body (1) is fixedly connected to a plurality of delivery pipes (3), the other end of the delivery pipe (3) is fixedly connected to an annular smoke pipe (4), and the tops of the delivery pipe (3) and the annular smoke pipe (4) are both fixedly connected to a plurality of injection heads (5).

3. A wet desulfurization equipment for treating boiler flue gas according to claim 1, characterized in that: The surface of the rotating tube (7) is rotatably connected to a fixing plate (71), and both ends of the fixing plate (71) are fixedly mounted on the inner wall of the tower body (1).

4. A wet desulfurization equipment for treating boiler flue gas according to claim 1, characterized in that: The driving mechanism comprises a motor (14) located on the tower body (1), the output end of the motor (14) is inserted into the smoke exhaust pipe (15) and fixedly connected to the second bevel gear (13), the surface of the second bevel gear (13) is rotatably connected to the first bevel gear (12), and the first bevel gear (12) is fixedly connected to the rotating tube (7).

5. A wet desulfurization equipment for treating boiler flue gas according to claim 1, characterized in that: The atomizing nozzles (101) are arranged at equal intervals on the liquid infusion tube (9) and the annular liquid tube (10), and the liquid infusion tube (9) is radially arranged on the surface of the rotating tube (7).

6. A wet desulfurization equipment for treating boiler flue gas according to claim 2, characterized in that: A plurality of the nozzles (5) are arranged at equal intervals on the delivery pipe (3) and the annular smoke pipe (4), and the delivery pipes (3) are radially arranged on the surface of the smoke inlet pipe (2).

7. A wet desulfurization equipment for treating boiler flue gas according to claim 1, characterized in that: The bottom end of the tower body (1) is fixedly connected with a support rod.

8. The wet desulfurization equipment for treating boiler flue gas according to claim 1, characterized in that: The rotating plate (8) located below the annular liquid pipe (10) contacts the surface of the filter plate (6) and is used to clean impurities on the surface of the filter plate (6).

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