Equipment for boiler flue gas desulfurization

Abstract

The utility model relates to the technical field of flue gas desulfurization, and discloses equipment for boiler flue gas desulfurization, which comprises a base, and an air pump and a booster pump which are sequentially arranged on the base, the air pump and the booster pump are connected through a flue gas inlet pipe, the top end of the flue gas inlet pipe is fixedly connected with a filter box, dust in flue gas is filtered by the filter box, and the filter box is fixedly connected with the filter box. According to the device disclosed by the utility model, the motor, the gear II, the gear III, the gear I, the rotating rod I, the cleaning brush, the rotating rod II, the linkage rod, the conveying pipe and the gas ejector pipe are matched for use, so that the gas ejector pipe is driven to rotate in alkali liquor, smoke is uniformly discharged into the alkali liquor, and the dust removal effect is improved. The flue gas desulfurization device has the advantages that sufficient contact between flue gas and alkali liquor is increased, a good desulfurization effect is achieved, the cleaning brush is driven to rotate to clean dust on the filter screen, the dust is prevented from blocking filter holes, and poor ventilation effect is avoided, and the device is simple in structure.

Description

Technical Field

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

[0002] The gypsum desulfurization process is the most widely used desulfurization technology in the world. Its working principle is: limestone powder is added with water to form a slurry as an absorbent, which is transported to the absorption tower to fully contact and mix with the flue gas. The sulfur dioxide in the flue gas reacts with the calcium carbonate in the slurry and the air blown in from the bottom of the tower to form calcium sulfate. After the calcium sulfate reaches a certain saturation, it crystallizes to form dihydrate gypsum. The gypsum slurry discharged from the absorption tower is concentrated and dehydrated to make its water content less than 10%, and then it is conveyed to the gypsum storage silo by a conveyor for stacking. The flue gas after desulfurization passes through the demister to remove the droplets, and then after being heated by the heat exchanger, it is discharged into the atmosphere through the chimney. Because the absorbent slurry in the absorption tower is repeatedly circulated through the circulation pump to contact with the flue gas, the absorbent utilization rate is very high, the calcium-sulfur ratio is relatively low, and the desulfurization efficiency can be greater than 95%.

[0003] The prior art has a publication number of CN210495897U that discloses a boiler flue gas desulfurization device. In the above patent technology, a smoke inlet pipe is directly inserted into the alkali solution, which is not conducive to the full mixing of the flue gas and the alkali solution, and will affect the efficiency of the flue gas treatment. At the same time, it does not have the function of effectively utilizing the waste heat in the flue gas. Therefore, the utility model proposes a boiler flue gas desulfurization device to solve the above problems. Utility Model Content

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

[0005] The utility model provides a device for boiler flue gas desulfurization using the following technical solutions:

[0006] The smoke exhaust gas fan of claim 1, wherein the filter element has a top end that is fixedly connected to the filter box, and the filter element has a top end that is fixedly connected to the filter box. The filter element is used to filter out dust in the smoke, and the filter element is used to fix the top of the filter box. The other end of the smoke exhaust pipe is rotatably connected to a delivery pipe, and the surface of the delivery pipe is rotatably connected to an alkali liquid box, and the alkali liquid box is fixedly installed on the top of the base, and the bottom of the delivery pipe is fixedly connected to an injection pipe, and the top of the injection pipe is fixedly connected to a plurality of nozzles, and the inner wall of the delivery pipe is fixedly connected to a linkage rod, and the top center of the linkage rod is fixedly connected to a rotating rod 2, and the surface of the rotating rod 2 is rotatably connected to the smoke exhaust pipe, and the end of the rotating rod 2 that passes through the outside of the smoke exhaust pipe is connected to a power mechanism, and the power mechanism is used to drive the delivery pipe to rotate through the rotating rod 2 and the linkage rod.

[0007] Preferably, a filter is fixedly connected to the interior of the filter box, and a rotating rod is rotatably connected to the center of the filter, and the rotating rod passes through one end of the smoke exhaust pipe and is connected to a power mechanism, and a cleaning brush in contact with the surface of the filter is fixedly connected to the bottom of the rotating rod, and the cleaning brush is driven by the power mechanism to rotate through the rotating rod to clean up the dust filtered out by the filter.

[0008] Preferably, the power mechanism includes an installation box located on the top of the alkali liquid tank, the top of the installation box is fixedly connected to a motor, the output end of the motor is fixedly connected to gear 2, the surface of gear 2 is meshed with gear 3, and the interior of gear 3 is fixedly connected to rotating rod 2, the surface of gear 2 is meshed with gear 1, and gear 1 is fixedly connected to the surface of rotating rod 1.

[0009] Preferably, the two pillars on the left side of the installation box are fixedly connected to the base, and the two pillars on the right side of the installation box are fixedly connected to the top of the installation box.

[0010] Preferably, the gear one and the gear three are arranged opposite to each other, the smoke exhaust pipe is in an L-shape, and the filter screen is fixedly connected to the alkali liquid tank.

[0011] Preferably, the bottom of the alkali liquid tank is connected to a sewage pipe.

[0012] In summary, the utility model includes the following beneficial technical effects:

[0013] The utility model achieves the purpose of driving the jet pipe to rotate in the alkali solution by using a motor, gear two, gear three, gear one, rotating rod one, a cleaning brush, rotating rod two, a linkage rod, a conveying pipe and an air jet pipe in coordination, so that the flue gas is evenly discharged into the alkali solution, the sufficient contact between the flue gas and the alkali solution is increased, and a good desulfurization effect is achieved, and the cleaning brush is also driven to rotate. The cleaning brush rotates to clean dust on the filter net, so as to prevent dust from clogging the filter holes and causing poor ventilation effect. The device has a simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front structural schematic diagram of an embodiment of the utility model;

[0015] Figure 2 It is a schematic diagram of the internal structure in an embodiment of the utility model;

[0016] Figure 3 It is a schematic diagram of the front internal structure in an embodiment of the utility model;

[0017] Figure 4 It is a schematic diagram of the structure of the driving mechanism in the embodiment of the utility model;

[0018] Figure 5It is a schematic diagram of the internal structure of the filter box in the embodiment of the utility model.

[0019] Explanation of the accompanying drawings: 1. base; 2. smoke inlet pipe; 3. filter box; 4. filter screen; 5. rotating rod 1; 6. cleaning brush; 7. smoke exhaust pipe; 8. gear 1; 9. gear 2; 10. motor; 11. installation box; 12. gear 3; 13. rotating rod 2; 14. linkage rod; 15. delivery pipe; 16. jet pipe; 17. alkali liquid box. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1-5 The utility model is described in further detail.

[0021] 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.

[0022] The utility model embodiment discloses a device for desulfurization of boiler flue gas. Figure 1-5 ,

[0023] A device for boiler flue gas desulfurization, comprising a base 1 and a flue gas pipe located on the base 1, the flue gas pipe, an air pump and a pressure pump are all connected through a smoke inlet pipe 2, a filter box 3 is fixedly connected to the top of the smoke inlet pipe 2, a filter screen 4 is fixedly connected to the inside of the filter box 3, a rotating rod 5 is rotatably connected to the center of the filter screen 4, and the rotating rod 5 passes through one end of a smoke exhaust pipe 7 and is connected to a power mechanism;

[0024] Reference Figure 2-4 The power mechanism includes an installation box 11 located on the top of the alkali liquid tank 17, two pillars on the left side of the installation box 11 are fixedly connected to the base 1, and two pillars on the right side of the installation box 11 are fixedly connected to the top of the installation box 11 for supporting the installation box 11. A motor 10 is fixedly connected to the top of the installation box 11, and a gear 2 9 is fixedly connected to the output end of the motor 10. A gear 3 12 is meshed on the surface of the gear 2 9, and a gear 1 8 is meshed on the surface of the gear 2 9, and the gear 1 8 is fixedly connected to the surface of the rotating rod 1 5, and the gear 1 8 and the gear 3 12 are arranged opposite to each other;

[0025] The bottom of the rotating rod 5 is fixedly connected with a cleaning brush 6M in contact with the surface of the filter screen 4;

[0026] Specifically, the motor 10 drives the second gear 9 to rotate, the rotation of the second gear 9 drives the third gear 12 to rotate, the rotation of the third gear 12 drives the second rotating rod 13 to rotate, and the second rotating rod 13 drives the conveying pipe 15 and the injection pipe 16 to rotate through the linkage rod 14, so as to evenly distribute the flue gas in the alkali liquid in the alkali liquid box 17;

[0027] Through the above structural design, the flue gas is evenly discharged into the alkali solution, so that the flue gas and the alkali solution are fully contacted, thereby increasing the desulfurization effect;

[0028] Reference Figure 2-4 The top of the filter box 3 is fixedly connected with a smoke exhaust pipe 7, the shape of the smoke exhaust pipe 7 is L-shaped, the filter screen 4 is fixedly connected to the alkali liquid tank 17, the other end of the smoke exhaust pipe 7 is rotatably connected with a delivery pipe 15, the surface of the delivery pipe 15 is rotatably connected with the alkali liquid tank 17, and the alkali liquid tank 17 is fixedly installed on the top of the base 1, and the bottom of the alkali liquid tank 17 is connected with a sewage pipe, the bottom of the delivery pipe 15 is fixedly connected with an injection pipe 16, and the top of the injection pipe 16 is fixedly connected with a plurality of nozzles, the inner wall of the delivery pipe 15 is fixedly connected with a linkage rod 14, the top center of the linkage rod 14 is fixedly connected with a rotating rod 2 13, and the surface of the rotating rod 2 13 is rotatably connected with the smoke exhaust pipe 7, and the end of the rotating rod 2 13 that passes through the outside of the smoke exhaust pipe 7 is connected with a gear 3 12;

[0029] Specifically, when the motor 10 is started, the air pump inputs the smoke into the interior of the delivery pipe 15 through the smoke inlet pipe 2, the filter box 3, and the smoke exhaust pipe 7, and then the smoke is ejected along with the nozzle on the rotating jet pipe 16. At the same time, the motor 10 rotates through the gear 2 9 to drive the gear 1 8 to rotate, and the gear 1 8 rotates to drive the rotating rod 1 5 to rotate, and the rotating rod 1 5 rotates to rotate the cleaning brush 6 to clean up the dust filtered by the filter screen 4 to prevent the filter holes of the filter screen 4 from being blocked;

[0030] Through the above structural design, the purpose of not only driving the jet pipe 16 to rotate to uniformly discharge the smoke into the alkali solution, but also driving the cleaning brush 6 to rotate to clean the dust at the lower end of the filter screen 4 is achieved.

[0031] 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;

[0032] 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;

[0033] 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 device for boiler flue gas desulfurization, comprising a base (1) and a flue gas pipe located on the base (1), an air pump and a pressure pump are connected through a flue gas inlet pipe (2), characterized in that: The top of the smoke inlet pipe (2) is fixedly connected to a filter box (3), and dust in the smoke is filtered out by the filter box (3). The top of the filter box (3) is fixedly connected to a smoke exhaust pipe (7). The other end of the smoke exhaust pipe (7) is rotatably connected to a delivery pipe (15). The surface of the delivery pipe (15) is rotatably connected to an alkali liquid box (17), and the alkali liquid box (17) is fixedly installed on the top of the base (1). The bottom of the delivery pipe (15) is fixedly connected to an injection pipe (16). The top of the jet pipe (16) is fixedly connected to a plurality of nozzles, the inner wall of the delivery pipe (15) is fixedly connected to a linkage rod (14), the top center of the linkage rod (14) is fixedly connected to a second rotating rod (13), and the surface of the second rotating rod (13) is rotatably connected to the smoke exhaust pipe (7), and one end of the second rotating rod (13) that passes through the outer side of the smoke exhaust pipe (7) is connected to a power mechanism, and the power mechanism is used to drive the delivery pipe (15) to rotate through the second rotating rod (13) and the linkage rod (14).

2. The equipment for boiler flue gas desulfurization according to claim 1, characterized in that: The filter box (3) is fixedly connected to a filter screen (4) inside, and the center of the filter screen (4) is rotatably connected to a rotating rod (5), and the rotating rod (5) passes through one end of the smoke exhaust pipe (7) and is connected to a power mechanism, and the bottom of the rotating rod (5) is fixedly connected to a cleaning brush (6) in contact with the surface of the filter screen (4), and the cleaning brush (6) is driven by the power mechanism to rotate through the rotating rod (5) to clean up the dust filtered by the filter screen (4).

3. The equipment for boiler flue gas desulfurization according to claim 2, characterized in that: The power mechanism comprises an installation box (11) located on the top of the alkali liquid tank (17), the top of the installation box (11) is fixedly connected to a motor (10), the output end of the motor (10) is fixedly connected to a second gear (9), the surface of the second gear (9) is meshed with a third gear (12), and the interior of the third gear (12) is fixedly connected to a second rotating rod (13), the surface of the second gear (9) is meshed with a first gear (8), and the first gear (8) is fixedly connected to the surface of the first rotating rod (5).

4. The equipment for boiler flue gas desulfurization according to claim 3, characterized in that: The two pillars on the left side of the installation box (11) are fixedly connected to the base (1), and the two pillars on the right side of the installation box (11) are fixedly connected to the top of the installation box (11).

5. The equipment for boiler flue gas desulfurization according to claim 3, characterized in that: The gear one (8) and the gear three (12) are arranged opposite to each other, the smoke exhaust pipe (7) is in an L-shape, and the filter screen (4) is fixedly connected to the alkali liquid box (17).

6. The equipment for boiler flue gas desulfurization according to claim 1, characterized in that: The bottom of the alkali liquid tank (17) is connected to a sewage discharge pipe.

Images