Desulfurizing tower of coal-fired boiler

Abstract

The utility model discloses a desulfurization tower of a coal-fired boiler, and belongs to the technical field of desulfurization devices. The device is novel in design and ingenious, when a water distribution pipe sprays a treatment solution, a second motor drives a second gear to rotate, the second gear is meshed with a second gear ring, the position of the second gear is changed, the second motor connected with a sliding block is driven by the sliding block to slide on an arc-shaped sliding groove along the radian, and when the second gear moves, the second gear is driven by the sliding block to rotate. When the smoke is discharged, the connecting plate drives the water distribution pipe to rotate by 180 degrees, and in the rotating process of the water distribution pipe, the treatment solution in the water distribution pipe is uniformly sprayed to the smoke discharged from the smoke outlet head through the spray head, so that the smoke and the treatment solution are fully fused and reacted, the reaction degree between the smoke and the treatment solution is improved, and the smoke discharging qualification rate is increased; and the practicability of the device is greatly improved.

Description

Technical Field

[0001] This application relates to the field of desulfurization equipment technology, and in particular to a desulfurization tower for a coal-fired boiler. Background Technology

[0002] The published patent CN211612201U discloses a desulfurization tower for a coal-fired boiler, relating to the field of desulfurization devices. It includes a tower top, a top bottom, and a tower body. The flue gas inlet and outlet are located at the tower bottom and top, respectively. Several maintenance ports are evenly distributed along the tower body, which also has several water distribution pipes. A fixing plate is installed inside the tower body, positioned above the flue gas inlet. The fixing plate is densely covered with water-permeable holes. A metal pipe is connected to the flue gas inlet, penetrating the fixing plate and fixed to its body. A flue gas guide head is located above the flue gas inlet, consisting of a vertical cylindrical tube and a metal... The system consists of mushroom-shaped heads connected together, with a vertical cylindrical tube clamped inside a fixed plate. Ventilation holes are provided on the lower plate of the metal mushroom head, allowing flue gas to enter through these holes. Smoke outlets are evenly distributed on the metal mushroom head, oriented in all directions. Smoke guides for dispersing smoke are installed inside the tower body, with metal mushroom heads on the guides evenly arranged to form smoke outlets facing all directions. With continuous smoke discharge from the outlets, the smoke can be evenly dispersed within the tower body and react with the solution sprayed by the water distribution pipe, ensuring a complete reaction and guaranteeing that the discharged smoke meets the required standards.

[0003] In the desulfurization tower for coal-fired boilers mentioned in the above patent, the flue gas guide head is made into a rotatable shape. When the flue gas guide head rotates at low speed, it can achieve full dispersion of flue gas. However, even if the flue gas is fully dispersed, the water distribution pipe is fixed and sprayed, and it cannot be evenly mixed with the flue gas during the spraying process, thus affecting the reaction effect and greatly reducing the qualified rate of the discharged flue gas.

[0004] Therefore, this application proposes a desulfurization tower for coal-fired boilers. Utility Model Content

[0005] This application proposes a desulfurization tower for a coal-fired boiler to solve the problems mentioned in the background art. When the treatment solution is sprayed through the water distribution pipe, the second motor drives the second gear to rotate. The second gear meshes with the second gear ring, causing the position of the second gear to change. The slider drives the second motor connected to it to slide along the arc of the arc-shaped slide groove. When the position of the second gear moves, it will drive the water distribution pipe to rotate 180 degrees through the connecting plate. During the rotation of the water distribution pipe, the treatment solution in the water distribution pipe will be evenly sprayed through the nozzle onto the flue gas discharged from the flue gas outlet, so that the flue gas and the treatment solution can fully mix and react, thereby improving the degree of reaction between the flue gas and the treatment solution, improving the qualified rate of flue gas discharge, and greatly improving the practicality of the device.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] A desulfurization tower for a coal-fired boiler includes a tower body, with an inlet and an outlet located at the bottom and top of the tower, respectively. Several maintenance ports are evenly distributed throughout the tower body. Two water distribution pipes are also installed on the tower body, with multiple nozzles mounted on the pipes inside the tower body, facing the bottom of the tower. A fixed plate is installed inside the tower body above the inlet, and the fixed plate is densely covered with water-permeable holes. A vertical cylindrical pipe is fixedly connected to the inlet, penetrating the fixed plate and fixed to its body. Two mounting brackets are fixedly connected to the outside of the tower body. Each mounting bracket has a rotating mechanism inside, comprising a turntable, a second gear ring, a second gear, a connecting plate, a second motor, a slider, and an arc-shaped sliding groove.

[0008] In a preferred embodiment, one end of each of the two water distribution pipes located outside the tower body extends into the interior of the mounting frame. A turntable is fixedly connected inside the two mounting frames and outside the water distribution pipes. A second gear ring is provided on the exterior of each of the two turntables. A second gear is rotatably connected inside the two mounting frames, and the two second gear rings are meshed with the second gear.

[0009] The second gear is driven to rotate by the second motor, and the second gear meshes with the second gear ring, causing the position of the second gear to change, thereby improving the applicability of the device.

[0010] In a preferred embodiment, a connecting plate is fixedly connected to the outside of both water distribution pipes and to one side of the turntable, and the other end of both connecting plates is rotatably connected to the second gear.

[0011] The connecting plate drives the water distribution pipe to rotate 180 degrees. During the rotation of the water distribution pipe, the treatment solution inside the water distribution pipe is evenly sprayed through the nozzle onto the flue gas discharged from the smoke outlet, so that the flue gas and the treatment solution can fully mix and react, thereby improving the degree of reaction between the flue gas and the treatment solution, improving the pass rate of flue gas discharge, and thus improving the practicality of the device.

[0012] In a preferred embodiment, both mounting brackets have arc-shaped grooves inside, and sliders are slidably connected inside both arc-shaped grooves. Both second motors are fixedly connected to the sliders, and the output ends of both second motors are fixedly connected to the second gears.

[0013] The slider drives the second motor connected to it to slide along the arc of the arc-shaped slide groove. When the second gear moves, it drives the water distribution pipe to rotate 180 degrees through the connecting plate, thereby improving the practicality of the device.

[0014] In a preferred embodiment, the fixed plate has an internal motor cavity, a first motor is fixedly connected inside the motor cavity, and a disc is fixedly connected outside the vertical cylindrical tube and inside the fixed plate.

[0015] The first motor drives the first gear to rotate, and the first gear meshes with the first gear ring, which causes the disc to rotate, thereby improving the practicality of the device.

[0016] In a preferred embodiment, a first gear ring is provided on the outside of the disk, and a first gear is fixedly connected to the output end of the first motor, and the first gear is meshed with the first gear ring.

[0017] The rotating disc drives the vertical cylindrical tube and the metal mushroom head to rotate 360 ​​degrees, which effectively disperses the flue gas as it is discharged through the smoke outlet, thereby improving the practicality of the device.

[0018] In a preferred embodiment, a metal mushroom head is fixedly connected to the top of the vertical cylindrical tube, and multiple ventilation holes are provided on the lower plate of the metal mushroom head. Multiple smoke outlets are provided on the metal mushroom head, and each smoke outlet is oriented in a different direction.

[0019] After the flue gas enters through the inlet, it flows into the metal pipe. The flue gas is sealed by the guide head at the end of the metal pipe, and the lower plate of the metal mushroom head of the guide head is provided with a vent. The flue gas enters the metal mushroom head through the vent and then flows out through the flue gas outlet on the metal mushroom head. The flue gas outlet has a small diameter, and under a certain inlet pressure, the flue gas flowing out of the outlet overflows in a linear fashion and then disperses into the tower body. This ensures that the flue gas is fully dispersed and comes into full contact with the treatment solution sprayed from the nozzle above the outlet, accelerating the reaction process and thus improving the practicality of the device.

[0020] In a preferred embodiment, a dehydration layer is provided on the lower side of the top of the tower body, and a guide plate is provided on the bottom of the tower. The guide plate is inclined and tilted towards the smoke outlet at the bottom of the tower, and a water outlet is provided at the bottom of the tower above the guide plate.

[0021] After being treated, the flue gas passes through the dehydration layer at the top of the tower and is discharged from the flue gas outlet. The waste solution from the treated flue gas flows to the bottom of the tower through the water permeable holes on the fixed plate. An inclined guide plate is installed at the bottom of the tower, which is oriented towards the water outlet to ensure the water output rate, thereby improving the practicality of the device.

[0022] The beneficial effects of this application are:

[0023] 1. In this desulfurization tower for a coal-fired boiler, when the treatment solution is sprayed through the water distribution pipe, a second motor drives a second gear to rotate. The second gear meshes with a second gear ring, causing the position of the second gear to change. This changes the position of the second gear. The second motor, connected to the second gear, is driven by a slider to slide along the arc of the arc-shaped slide groove. When the position of the second gear moves, the water distribution pipe will rotate 180 degrees through the connecting plate. During the rotation of the water distribution pipe, the treatment solution inside the water distribution pipe will be evenly sprayed through the nozzles onto the flue gas discharged from the flue gas outlet, so that the flue gas and the treatment solution can fully mix and react, thereby improving the degree of reaction between the flue gas and the treatment solution, improving the qualification rate of the flue gas discharge, and greatly improving the practicality of the device.

[0024] 2. In this desulfurization tower for a coal-fired boiler, when the flue gas passes through the vertical cylindrical pipe, the first motor drives the first gear to rotate. The first gear meshes with the first gear ring, which causes the disc to rotate. The disc then drives the vertical cylindrical pipe and the metal mushroom head to rotate 360 ​​degrees, so that the flue gas can be effectively dispersed when it is discharged through the smoke outlet, greatly improving the practicality of the device. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the internal structure of the device described in this application;

[0026] Figure 2 This is a schematic diagram of the tower top of the device in this application;

[0027] Figure 3 This is a schematic diagram of the tower base of the device in this application;

[0028] Figure 4 This is a schematic diagram of the rotating mechanism of the device in this application;

[0029] Figure 5 This is a schematic diagram of the rotating mechanism of the device in this application.

[0030] The diagram labels are as follows: 1. Tower body; 2. Smoke inlet; 3. Smoke outlet; 4. Inspection port; 5. Dehydration layer; 6. Water outlet; 7. Guide plate; 8. Fixing plate; 9. Vertical cylindrical tube; 10. Metal mushroom head; 101. Smoke outlet; 11. Ventilation hole; 12. Water permeation hole; 13. Motor cavity; 131. First motor; 132. First gear; 133. Disc; 134. First gear ring; 14. Water distribution pipe; 141. Nozzle; 15. Mounting bracket; 151. Turntable; 152. Second gear ring; 153. Second gear; 154. Connecting plate; 155. Second motor; 156. Slider; 157. Arc-shaped slide. Detailed Implementation

[0031] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0032] Reference Figure 1-5 A desulfurization tower for a coal-fired boiler includes a tower body 1, an inlet 2 and an outlet 3 respectively located at the bottom and top of the tower, a number of maintenance ports 4 evenly distributed on the tower body, and two water distribution pipes 14 installed on the tower body. Multiple nozzles 141 are installed on the pipes inside the tower body, with the nozzles 141 facing the bottom of the tower. A fixing plate 8 is installed inside the tower body 1 above the inlet 2, with water permeable holes 12 densely distributed on the fixing plate 8. A vertical cylindrical pipe 9 is fixedly connected to the inlet 2, and the vertical cylindrical pipe 9 passes through the fixing plate 8 and is fixed to the body of the fixing plate 8. Two mounting brackets 15 are fixedly connected to the outside of the tower body 1. A rotating mechanism is installed inside the two mounting brackets 15. The rotating mechanism includes a turntable 151, a second gear ring 152, a second gear 153, a connecting plate 154, a second motor 155, a slider 156 and an arc-shaped slide groove 157.

[0033] Reference Figure 1-5 Two water distribution pipes 14 extend from the outside of the tower body 1 to the inside of the mounting frame 15. Turntables 151 are fixedly connected inside the mounting frames 15 and outside the water distribution pipes 14. Second gear rings 152 are provided on the outside of each of the two turntables 151. Second gears 153 are rotatably connected inside the mounting frames 15, and the two second gear rings 152 mesh with the second gears 153. The second gears 153 are driven to rotate by a second motor 155, meshing with the second gear rings 152, thus changing the position of the second gears 153 and improving the practicality of the device. The water distribution pipes 14 are rotated 180 degrees by a connecting plate 154. During the rotation of the water distribution pipes 14, the treatment solution inside the water distribution pipes 14 is evenly sprayed through nozzles 141 onto the flue gas discharged from the smoke outlet 101, allowing the flue gas and treatment solution to fully mix and react, thereby increasing the degree of reaction between the flue gas and the treatment solution, improving the pass rate of flue gas discharge, and thus enhancing the practicality of the device.

[0034] Reference Figure 1 , 2 4 and 5, both water distribution pipes 14 are fixedly connected to a connecting plate 154 on the outside of the turntable 151, and the other end of both connecting plates 154 is rotatably connected to the second gear 153; the second motor 155 connected to the slider 156 drives the slider 156 to slide along the arc on the arc-shaped slide groove 157, and when the position of the second gear 153 moves, the connecting plate 154 will drive the water distribution pipe 14 to rotate 180 degrees, thereby improving the practicality of the device.

[0035] Reference Figure 1-5 Both mounting brackets 15 have arc-shaped grooves 157 inside, and sliders 156 are slidably connected inside the two arc-shaped grooves 157. Both second motors 155 are fixedly connected to the sliders 156, and the output ends of both second motors 155 are fixedly connected to the second gears 153. The first motor 131 drives the first gear 132 to rotate. The first gear 132 meshes with the first gear ring 134, which causes the disc 133 to rotate, thereby improving the practicality of the device.

[0036] Reference Figure 1-3 The fixed plate 8 has an internal motor cavity 13, and a first motor 131 is fixedly connected inside the motor cavity 13. A disc 133 is fixedly connected to the outside of the vertical cylindrical tube 9 and inside the fixed plate 8. By rotating the disc 133, the disc 133 drives the vertical cylindrical tube 9 and the metal mushroom head 10 to rotate 360 ​​degrees, so that the smoke can be effectively dispersed when it is discharged through the smoke outlet 101, thereby improving the practicality of the device.

[0037] Reference Figure 1-3 The outer side of the disc 133 is provided with a first gear ring 134, and the output end of the first motor 131 is fixedly connected to a first gear 132, and the first gear 132 and the first gear ring 134 are meshed together. After the flue gas enters through the flue gas inlet 2, the flue gas flows into the metal pipe. The flue gas is sealed by the flue gas guide head at the end of the metal pipe, and the lower plate of the metal mushroom head 10 of the flue gas guide head is provided with a vent hole 11. The flue gas enters the metal mushroom head 10 through the vent hole 11 and then flows out through the flue gas outlet 101 on the metal mushroom head 10. The flue gas outlet 101 has a small aperture. Under a certain flue gas pressure, the flue gas flowing out of the flue gas outlet 101 overflows in a linear shape and then disperses into the tower body. This can ensure that the flue gas is fully dispersed and fully contacts and reacts with the treatment solution sprayed by the nozzle 141 above the flue gas outlet 101, thus accelerating the reaction process and improving the practicality of the device.

[0038] Reference Figure 1-3 A metal mushroom head 10 is fixedly connected to the top of a vertical cylindrical tube 9, and multiple air vents 11 are opened on the lower plate of the metal mushroom head 10. Multiple smoke outlets 101 are set on the metal mushroom head 10, and each smoke outlet 101 is set in a different direction. The treated flue gas is treated by the dehydration layer 5 at the top of the tower and then discharged from the smoke outlet 3. The waste solution after the flue gas is treated flows to the bottom of the tower through the water permeable holes 12 on the fixed plate 8. An inclined guide plate 7 is set at the bottom of the tower, which is set towards the water outlet 6 to ensure the water output rate, thereby improving the practicality of the device.

[0039] Reference Figure 1-3A dehydration layer 5 is provided on the lower side of the top of the tower body 1, and a guide plate 7 is provided on the bottom of the tower. The guide plate 7 is inclined and tilted towards the smoke outlet 101 at the bottom of the tower. A water outlet 6 is provided at the bottom of the tower and above the guide plate 7.

[0040] Working principle: After the flue gas enters through the inlet 2, it flows into the metal pipe. The guide head at the end of the metal pipe seals the flue gas, and the lower plate of the metal mushroom head 10 of the guide head is provided with a vent hole 11. The flue gas enters the metal mushroom head 10 through the vent hole 11 and then flows out through the smoke outlet 101 on the metal mushroom head 10. The smoke outlet 101 has a small aperture. Under a certain inlet pressure, the flue gas flowing out of the smoke outlet 101 overflows in a linear shape and then disperses into the tower body. This ensures that the flue gas is fully dispersed and fully contacts and reacts with the treatment solution sprayed by the nozzle 141 above the smoke outlet 101, accelerating the reaction process. After the treated flue gas is treated by the dehydration layer 5 at the top of the tower, it is discharged through the smoke outlet 3. The waste solution after the flue gas is treated flows to the bottom of the tower through the water permeable hole 12 on the fixed plate 8. An inclined guide plate 7 is provided at the bottom of the tower, which is set towards the water outlet 6 to ensure the water output rate.

[0041] When the treatment solution is sprayed from the water distribution pipe 14, the second motor 155 drives the second gear 153 to rotate. The second gear 153 meshes with the second gear ring 152, causing the position of the second gear 153 to change. The slider 156 drives the second motor 155 connected to it to slide along the arc on the arc-shaped slide groove 157. When the position of the second gear 153 moves, it will drive the water distribution pipe 14 to rotate 180 degrees through the connecting plate 154. During the rotation of the water distribution pipe 14, the treatment solution in the water distribution pipe 14 will be evenly sprayed through the nozzle 141 onto the flue gas discharged from the smoke outlet 101, so that the flue gas and the treatment solution can fully mix and react, thereby improving the degree of reaction between the flue gas and the treatment solution and improving the pass rate of flue gas discharge.

[0042] When the flue gas passes through the vertical cylindrical tube 9, the first motor 131 drives the first gear 132 to rotate. The first gear 132 meshes with the first gear ring 134, which causes the disc 133 to rotate. The disc 133 then drives the vertical cylindrical tube 9 and the metal mushroom head 10 to rotate 360 ​​degrees, so that the flue gas can be effectively dispersed when it is discharged through the smoke outlet 101.

[0043] The above are merely preferred embodiments of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and the inventive concept of this application, should be included within the scope of protection of this application.

Claims

1. A desulfurization tower for a coal-fired boiler, comprising a tower body (1), characterized in that, The smoke inlet (2) and smoke outlet (3) are respectively arranged at the bottom and top of the tower. Several maintenance ports (4) are evenly arranged on the tower body. Two water distribution pipes (14) are also installed on the tower body. Multiple nozzles (141) are installed on the pipes inside the tower body. The nozzles (141) are arranged facing the bottom of the tower. A fixing plate (8) is installed inside the tower body (1) and above the smoke inlet (2). The fixing plate (8) is densely covered with water-permeable holes (12). The smoke inlet (2) is fixed with a connecting A vertical cylindrical tube (9) is connected to the tower body (1), and the vertical cylindrical tube (9) passes through the fixing plate (8) and is fixed to the body of the fixing plate (8). Two mounting brackets (15) are fixedly connected to the outside of the tower body (1). The two mounting brackets (15) are equipped with a rotating mechanism inside. The rotating mechanism includes a turntable (151), a second gear ring (152), a second gear (153), a connecting plate (154), a second motor (155), a slider (156), and an arc-shaped slide groove (157).

2. The desulfurization tower for a coal-fired boiler according to claim 1, characterized in that, One end of each of the two water distribution pipes (14) located outside the tower body (1) extends into the interior of the mounting frame (15). A turntable (151) is fixedly connected inside the two mounting frames (15) and outside the water distribution pipes (14). A second gear ring (152) is provided on the exterior of each of the two turntables (151). A second gear (153) is rotatably connected inside the two mounting frames (15), and the two second gear rings (152) are meshed with the second gear (153).

3. The desulfurization tower for a coal-fired boiler according to claim 1, characterized in that, Both of the two water distribution pipes (14) are fixedly connected to a connecting plate (154) on the outside and on one side of the turntable (151), and the other end of both connecting plates (154) is rotatably connected to the second gear (153).

4. A desulfurization tower for a coal-fired boiler according to claim 1, characterized in that, Both mounting brackets (15) have arc-shaped grooves (157) inside, and both arc-shaped grooves (157) have sliders (156) slidably connected inside. Both second motors (155) are fixedly connected to the sliders (156), and the output ends of both second motors (155) are fixedly connected to the second gears (153).

5. A desulfurization tower for a coal-fired boiler according to claim 1, characterized in that, The fixed plate (8) has an internal motor cavity (13), and a first motor (131) is fixedly connected inside the motor cavity (13). A disc (133) is fixedly connected outside the vertical cylindrical tube (9) and inside the fixed plate (8).

6. A desulfurization tower for a coal-fired boiler according to claim 5, characterized in that, The disk (133) is provided with a first gear ring (134) on its outside. The output end of the first motor (131) is fixedly connected to a first gear (132), and the first gear (132) and the first gear ring (134) are meshed together.

7. A desulfurization tower for a coal-fired boiler according to claim 1, characterized in that, The top of the vertical cylindrical tube (9) is fixedly connected to a metal mushroom head (10), and the lower plate of the metal mushroom head (10) is provided with multiple ventilation holes (11). The metal mushroom head (10) is provided with multiple smoke outlets (101), and each smoke outlet (101) is oriented in a different direction.

8. A desulfurization tower for a coal-fired boiler according to claim 1, characterized in that, The tower body (1) is also provided with a dehydration layer (5) on the lower side of the tower top and a guide plate (7) on the bottom of the tower. The guide plate (7) is inclined and inclined towards the smoke outlet (101) at the bottom of the tower. A water outlet (6) is provided at the bottom of the tower and above the guide plate (7).

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