A flue gas desulfurization spraying device

Abstract

This utility model proposes a flue gas desulfurization spray device, mainly comprising a spray tower, an exhaust pipe, an inlet pipe, a drain pipe, a spraying mechanism, and a turbulence-inducing mechanism. After the flue gas enters the spray tower, the turbulence-inducing mechanism disperses the flue gas, increases its volume, improves the contact area between the flue gas and the spray liquid, and enhances the reaction capacity. Simultaneously, it generates a downward airflow to counteract some of the upward buoyancy of the flue gas, slowing its upward velocity and increasing the contact time between the flue gas and the spray liquid, thus ensuring sufficient reaction time. This addresses the problem in existing devices where flue gas is transported through pipelines, resulting in a concentrated flow that is difficult to disperse, leading to limited contact with a small amount of spray liquid per unit time, slow desulfurization rate, and incomplete desulfurization before discharge, causing harm. This device further improves the flue gas desulfurization effect and facilitates its promotion and use.

Description

Technical Field

[0001] This utility model belongs to the field of flue gas desulfurization technology, specifically relating to a flue gas desulfurization spray device. Background Technology

[0002] Currently, with the needs of industrial development, there are more and more chemical plants, and the amount of flue gas emitted from chemical production is also increasing. Most of the components in the flue gas are sulfur compounds, so desulfurization of the emitted flue gas is becoming increasingly important.

[0003] Chinese patent CN220143024U discloses a flue gas desulfurization spray device, including a spray tower assembly. The lower end of the spray tower assembly has a conical outlet, and the upper surface of the spray tower assembly has an air outlet column at its edge. A conical baffle is located in the middle of the interior of the spray tower assembly, dividing the interior into two spray chambers. A through hole is located in the center of the conical baffle, and a solenoid valve is installed in this through hole. A support is fixed to the outer side of the lower end of the spray tower assembly. Each of the two spray chambers has a disc-shaped gas diffuser coil at its lower end. An air pump for inflating the gas diffuser coil is located on the upper surface of the support. The air outlet of the lower spray chamber is connected to the inlet of the upper gas diffuser coil via a conduit. However, the above-mentioned device, as well as other existing devices, all transport flue gas through pipelines. When the flue gas enters the device, it is concentrated and difficult to disperse, resulting in only a small amount of spray liquid contacting the gas per unit time. This leads to a slow flue gas desulfurization rate, and the gas is discharged before complete desulfurization, causing harm. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] This invention proposes a flue gas desulfurization spray device to solve the technical problem of how to improve the desulfurization speed.

[0006] (II) Technical Solution

[0007] To address the aforementioned technical problems, this utility model proposes a flue gas desulfurization spray device, which includes a spray tower, an exhaust pipe, an inlet pipe, a drain pipe, a spraying mechanism, and a turbulence-inducing mechanism; wherein,

[0008] The exhaust pipe is fixedly installed at the top of the spray tower and communicates with the interior of the spray tower to discharge the flue gas after desulfurization; the inlet pipe is fixedly installed on the side wall of the spray tower and communicates with the interior of the spray tower to introduce flue gas into the interior of the spray tower; the drain pipe is fixedly installed at the bottom of the spray tower and communicates with the interior of the spray tower to discharge the spray liquid at the bottom of the spray tower; a valve is installed on the drain pipe.

[0009] The spraying mechanism is located at the top of the spraying tower and is used to spray the spraying liquid into the interior of the spraying tower. The turbulence mechanism is located inside the spraying tower and is used to disperse the flue gas through turbulence after the flue gas enters the spraying tower, thereby increasing the volume of the flue gas, increasing the contact area between the flue gas and the spraying liquid, improving the reaction capacity, and generating downward wind force to counteract part of the upward buoyancy of the flue gas, slowing down the upward speed of the flue gas, increasing the contact time between the flue gas and the spraying liquid, and ensuring the reaction time.

[0010] Furthermore, a baffle plate is fixedly installed on the inner wall of the spray tower. The baffle plate is located below the turbulence mechanism and is used to prevent the spray liquid from entering the air inlet pipe from the top and forming scale with the high-temperature flue gas to block the air inlet pipe.

[0011] Furthermore, the spraying mechanism includes an inlet pipe, a distribution pipe, and an atomizing nozzle; the inlet pipe is fixedly installed on the outer side of the top of the spraying tower, the distribution pipe is fixedly installed on the inner side of the top of the spraying tower, the lower end of the inlet pipe is connected to the distribution pipe, and an atomizing nozzle connected to the inside of the distribution pipe is fixedly installed on the outer wall of the distribution pipe.

[0012] Furthermore, multiple sets of atomizing nozzles are fixedly installed on the outer wall of the diversion pipe.

[0013] Furthermore, the turbulence-disrupting mechanism includes a connecting plate, a waterproof motor, a rotating shaft, a connecting rod, and turbulence-disrupting plates. The connecting plate is fixedly installed on the inner wall of the spray tower, the waterproof motor is installed on the top of the connecting plate, and the rotating shaft is installed on the bottom of the connecting plate. The rotating shaft of the waterproof motor is connected to the rotating shaft. The connecting rod is fixedly installed on the outer periphery of the rotating shaft, and the turbulence-disrupting plates are fixedly installed on the connecting rod. Each turbulence-disrupting plate has a through turbulence-disrupting hole.

[0014] Furthermore, multiple connecting rods are fixedly installed on the outer circumference of the rotating shaft.

[0015] Furthermore, each spoiler has multiple through-holes.

[0016] (III) Beneficial Effects

[0017] This utility model proposes a flue gas desulfurization spray device, mainly comprising a spray tower, an exhaust pipe, an inlet pipe, a drain pipe, a spraying mechanism, and a turbulence-inducing mechanism. After the flue gas enters the spray tower, the turbulence-inducing mechanism disperses the flue gas, increases its volume, improves the contact area between the flue gas and the spray liquid, and enhances the reaction capacity. Simultaneously, it generates a downward airflow to counteract some of the upward buoyancy of the flue gas, slowing its upward velocity and increasing the contact time between the flue gas and the spray liquid, thus ensuring sufficient reaction time. This addresses the problem in existing devices where flue gas is transported through pipelines, resulting in a concentrated flow that is difficult to disperse, leading to limited contact with a small amount of spray liquid per unit time, slow desulfurization rates, and incomplete desulfurization before discharge, causing harm. This device further improves the flue gas desulfurization effect and facilitates its widespread adoption and use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the external structure of the flue gas desulfurization spray device of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the flue gas desulfurization spray device of this utility model.

[0020] Figure 3 for Figure 2 Enlarged view of the structure of region B in the middle;

[0021] Figure 4 for Figure 2 Enlarged view of the structure of region A in the middle.

[0022] In the diagram: 1-Spray tower; 2-Break current mechanism; 21-Connecting plate; 22-Waterproof motor; 23-Rotating shaft; 24-Connecting rod; 25-Break current plate; 26-Break current hole; 3-Spraying mechanism; 31-Liquid inlet pipe; 32-Diverter pipe; 33-Atomizing nozzle; 4-Exhaust pipe; 5-Air inlet pipe; 6-Baffle plate; 7-Liquid drain pipe; 8-Valve. Detailed Implementation

[0023] To make the objectives, contents, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0024] This embodiment proposes a flue gas desulfurization spray device, the structure of which is as follows: Figures 1-4 As shown, it mainly includes a spray tower 1, an exhaust pipe 4, an air inlet pipe 5, a baffle plate 6, a drain pipe 7, a spraying mechanism 3, and a turbulence mechanism 2.

[0025] The exhaust pipe 4 is fixedly installed at the top of the spray tower 1 and communicates with the interior of the spray tower 1 to discharge the desulfurized flue gas. The inlet pipe 5 is fixedly installed on the side wall of the spray tower 1 and communicates with the interior of the spray tower 1 to introduce flue gas into the spray tower 1. A baffle plate 6 is fixedly installed on the inner wall of the spray tower 1 to prevent the spray liquid from entering the inlet pipe 5 from the top and forming scale with the high-temperature flue gas, thus clogging the inlet pipe 5. The drain pipe 7 is fixedly installed at the bottom of the spray tower 1 and communicates with the interior of the spray tower 1 to discharge the spray liquid at the bottom of the spray tower 1. A valve 8 is installed on the drain pipe 7.

[0026] A spraying mechanism 3 is installed at the top of the spraying tower 1 and is used to spray the spraying liquid into the interior of the spraying tower 1. The spraying mechanism 3 includes an inlet pipe 31, a diversion pipe 32, and atomizing nozzles 33. The inlet pipe 31 is fixedly installed on the outer side of the top of the spraying tower 1, and the diversion pipe 32 is fixedly installed on the inner side of the top of the spraying tower 1. The lower end of the inlet pipe 31 is connected to the diversion pipe 32. Multiple sets of atomizing nozzles 33, communicating with the interior of the diversion pipe 32, are fixedly installed on the outer wall of the diversion pipe 32. The spraying mechanism 3 atomizes the spraying liquid entering the spraying tower 1, further increasing the contact area between the spraying liquid and the flue gas in the spraying tower 1, thereby improving the desulfurization effect.

[0027] The turbulence-disrupting mechanism 2 is located inside the spray tower 1 and above the baffle plate 6. The turbulence-disrupting mechanism 2 includes a connecting plate 21, a waterproof motor 22, a rotating shaft 23, connecting rods 24, and turbulence-disrupting plates 25. The connecting plate 21 is fixedly installed on the inner wall of the spray tower 1. The waterproof motor 22 is mounted on the top of the connecting plate 21, and the rotating shaft 23 is mounted on the bottom of the connecting plate 21. The shaft of the waterproof motor 22 is connected to the rotating shaft 23. Multiple connecting rods 24 are fixedly installed on the outer periphery of the rotating shaft 23. A turbulence-disrupting plate 25 is fixedly installed on each connecting rod 24, and each turbulence-disrupting plate 25 has multiple through-holes 26.

[0028] After the flue gas is introduced into the spray tower 1, the turbulence mechanism 2 disperses the flue gas through turbulence, expands the flue gas volume, increases the contact area between the flue gas and the spray liquid, and improves the reaction capacity. At the same time, the turbulence mechanism 2 generates downward wind force to counteract part of the buoyancy of the flue gas rising, slows down the rising speed of the flue gas, increases the contact time between the flue gas and the spray liquid, and ensures the reaction time.

[0029] The working principle of this device is as follows: flue gas enters the interior of the spray tower 1 through the inlet pipe 5, and at the same time, spray liquid is injected through the liquid inlet pipe 31. The spray liquid is atomized and sprayed out through the atomizing nozzles 33 on the diversion pipe 32. The waterproof motor 22 starts and drives the rotating shaft 23 to rotate slowly. The rotating shaft 23 drives the connecting rods 24 and the baffles 25 on them to rotate. The baffles 25 and the baffle holes 26 on them can disperse the flue gas. At the same time, the baffles 25 generate downward wind force, which slows down the rising speed of the flue gas, so that it can fully contact the spray liquid and be desulfurized. Finally, it can be discharged through the exhaust pipe 4. The spray liquid eventually accumulates on the bottom inner side of the spray tower 1. After the desulfurization operation is completed, the valve 8 is opened and the spray liquid is discharged through the drain pipe 7.

[0030] This device can solve the problem that existing devices transport flue gas through pipelines, resulting in the flue gas being concentrated upon entering the device and difficult to disperse. This causes the flue gas to only come into contact with a small amount of spray liquid per unit time, resulting in a slow flue gas desulfurization rate and the gas being discharged before complete desulfurization, thus causing harm.

[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A flue gas desulfurization spray device characterized by, The flue gas desulfurization spray device includes a spray tower, an exhaust pipe, an inlet pipe, a drain pipe, a spray mechanism, and a turbulence-inducing mechanism; wherein, The exhaust pipe is fixedly installed at the top of the spray tower and communicates with the interior of the spray tower to discharge the flue gas after desulfurization; the inlet pipe is fixedly installed on the side wall of the spray tower and communicates with the interior of the spray tower to introduce flue gas into the interior of the spray tower; the drain pipe is fixedly installed at the bottom of the spray tower and communicates with the interior of the spray tower to discharge the spray liquid at the bottom of the spray tower; a valve is installed on the drain pipe. The spraying mechanism is located at the top of the spraying tower and is used to spray the spraying liquid into the interior of the spraying tower. The turbulence mechanism is located inside the spraying tower and includes a connecting plate, a waterproof motor, a rotating shaft, a connecting rod, and turbulence plates. The connecting plate is fixedly installed on the inner wall of the spraying tower. The waterproof motor is installed on the top of the connecting plate, and the rotating shaft is installed on the bottom of the connecting plate. The rotating shaft of the waterproof motor is connected to the rotating shaft. The connecting rod is fixedly installed on the outer periphery of the rotating shaft, and the turbulence plates are fixedly installed on the connecting rod. Each turbulence plate has a through turbulence hole.

2. The flue gas desulfurization spray device according to claim 1, wherein A baffle plate is fixedly installed on the inner wall of the spray tower. The baffle plate is located below the turbulence mechanism and is used to prevent the spray liquid from entering the air inlet pipe from the top and forming scale with the high-temperature flue gas to block the air inlet pipe.

3. The flue gas desulfurization spray device according to claim 1, wherein The spraying mechanism includes an inlet pipe, a distribution pipe, and atomizing nozzles. The inlet pipe is fixedly installed on the outer side of the top of the spraying tower, and the distribution pipe is fixedly installed on the inner side of the top of the spraying tower. The lower end of the inlet pipe is connected to the distribution pipe, and the atomizing nozzles that communicate with the inside of the distribution pipe are fixedly installed on the outer wall of the distribution pipe.

4. The flue gas desulfurization spray device according to claim 3, wherein Multiple sets of atomizing nozzles are fixedly installed on the outer wall of the distributor.

5. The flue gas desulfurization spray device according to claim 1, wherein Multiple connecting rods are fixedly installed on the outer circumference of the rotating shaft.

6. The flue gas desulfurization spray device according to claim 1, wherein Each spoiler has multiple through-holes.

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