Desulfurization treatment device for graphitized tail gas

Abstract

The utility model relates to the technical field of tail gas desulfurization treatment devices, and discloses a graphitized tail gas desulfurization treatment device which comprises a desulfurization tower, a gas inlet pipe fixedly connected in the desulfurization tower, an input pipe fixedly connected in the desulfurization tower, a connecting pipe fixedly connected in the desulfurization tower, a booster pump arranged in the connecting pipe, and a gas outlet pipe fixedly connected in the connecting pipe. A dehydrating tower is fixedly connected to one end of the connecting pipe, a circulating water tank is arranged in the dehydrating tower, a speed reduction table is fixedly connected to the inner wall of the dehydrating tower, a water pressure pump is fixedly connected to the interior of the dehydrating tower, a water pipe is fixedly connected to the output end of the water pressure pump, and a spraying head is fixedly connected to one end of the water pipe. According to the utility model, the water pressure pump is arranged in the dehydrating tower, the liquid in the circulating water tank is pumped into the spray header, the liquid is sprayed to be in contact with desulfurized gas, fine particles are intercepted, water vapor in the gas is treated by a high-voltage electric field of the dehumidifying net, acid rain formation is reduced, and harmful substances in waste gas are efficiently treated.

Description

Technical Field

[0001] The utility model relates to the technical field of tail gas desulfurization treatment devices, in particular to a desulfurization treatment device for graphitized tail gas. Background Art

[0002] The desulfurization treatment device for graphitized tail gas usually refers to the graphitized gas desulfurization device, which is a device that uses a graphitized reactant to remove sulfur dioxide from the tail gas. The tail gas contacts and reacts with the graphitized reactant, and sulfur dioxide is reduced to hydrogen sulfide, thereby achieving desulfurization. This device is usually used in the treatment process of sulfur-containing gases, such as coal gasification, coking and other industrial production processes, to reduce the emission of harmful gases such as sulfur dioxide and protect the environment and human health.

[0003] The desulfurization treatment devices for graphitized tail gas include common graphitization reaction towers, circulating bed reactors and fluidized bed reactors. These devices achieve desulfurization by bringing graphitization reactants into contact with sulfur-containing tail gas and using the reactants to convert sulfur dioxide in the tail gas into hydrogen sulfide. The sulfur-containing tail gas and graphitization reactants are contacted and mixed in the reactor, and appropriate temperature, pressure, gas flow rate and other conditions are used to promote the reaction between the reactants and sulfur dioxide to generate hydrogen sulfide and other reaction products. The desulfurized tail gas can be discharged or further treated after treatment.

[0004] After desulfurization, the saturated flue gas of traditional exhaust gas desulfurization devices still carries a large amount of water droplets and fine particles, and some devices have low reaction efficiency when in contact with exhaust gas, resulting in low hydrogen sulfide removal rate, so that the emissions still contain high concentrations of hydrogen sulfide or other sulfides, and cannot effectively reduce pollution. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a desulfurization treatment device for graphitized tail gas, aiming to improve the problem that the existing technology cannot handle a large amount of water vapor and fine particles in the saturated flue gas after desulfurization, resulting in the emission of gas still having serious pollution.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a desulfurization treatment device for graphitized tail gas, comprising a desulfurization tower, an air intake pipe is fixedly connected to the inside of the desulfurization tower, an input pipe is fixedly connected to the inside of the desulfurization tower, a connecting pipe is fixedly connected to the inside of the desulfurization tower, a booster pump is arranged inside the connecting pipe, one end of the connecting pipe is fixedly connected to a dehydration tower, a circulating water tank is arranged inside the dehydration tower, a reduction platform is fixedly connected to the inner wall of the dehydration tower, a hydraulic pump is fixedly connected to the inside of the dehydration tower, a water pipe is fixedly connected to the output end of the hydraulic pump, a spray head is fixedly connected to one end of the water pipe, a dehumidification net is arranged on the inner wall of the dehydration tower, and a fixed component is arranged inside the desulfurization tower.

[0007] Furthermore, the fixing assembly comprises a filter block, the interior of the filter block is fixedly connected to the interior of the input pipe, and a side door is arranged inside the filter block.

[0008] Furthermore, a filter screen is fixedly connected inside the filter block, and a desulfurization pipe is fixedly connected inside the desulfurization tower.

[0009] Furthermore, a fixing block is provided inside the input pipe, and a nozzle is fixedly connected inside the fixing block.

[0010] Furthermore, a plurality of fixing platforms are fixedly connected to the outer wall of the input pipe.

[0011] Furthermore, a motor is fixedly connected to the upper surface of the desulfurization tower, and a cleaning block is fixedly connected to the output end of the motor.

[0012] Furthermore, the outer wall of the cleaning block is attached to the inner wall of the desulfurization tower.

[0013] Furthermore, a slot is provided inside the deceleration platform.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, a hydraulic pump is arranged inside the dehydration tower to pump the liquid inside the circulating water tank into the spray head, and the liquid is sprayed out from the spray head, and fully contacts with the desulfurized gas so that the fine particles in the desulfurized gas are intercepted. The high-voltage electric field of the dehumidification network can process the water vapor and other substances in the desulfurized gas, reduce the formation of acid rain, and achieve the effect of further efficiently treating harmful substances in the exhaust gas.

[0016] 2. In the utility model, a filter block is arranged inside the input pipe, and the filter screen inside the filter block can filter the incoming limestone slurry to prevent large particles of impurities from clogging the input pipe, thereby ensuring that the nozzle can work normally. At the same time, the motor drives the cleaning block to rotate so that the cleaning block cleans the inner wall of the desulfurization tower, thereby achieving the effect of improving the working efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural diagram of a graphitized tail gas desulfurization treatment device proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the dehumidification network part of a graphitized tail gas desulfurization treatment device proposed by the utility model;

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0020] Legend:

[0021] 1. Desulfurization tower; 2. Air inlet pipe; 3. Input pipe; 4. Connecting pipe; 5. Booster pump; 6. Dehydration tower; 7. Circulating water tank; 8. Speed ​​reducer; 9. Hydraulic pump; 10. Water pipe; 11. Sprinkler head; 12. Dehumidification net; 13. Fixed block; 14. Sprinkler head; 15. Fixed platform; 16. Export pipe; 17. Filter block; 18. Filter screen; 19. Side door; 20. Motor; 21. Cleaning block; 22. Slot hole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Reference Figure 1 , Figure 2 and Figure 3 The utility model provides an embodiment: a desulfurization treatment device for graphitized tail gas, comprising a desulfurization tower 1, an air intake pipe 2 is fixedly connected to the desulfurization tower 1, an input pipe 3 is fixedly connected to the desulfurization tower 1, a connecting pipe 4 is fixedly connected to the desulfurization tower 1, a booster pump 5 is arranged inside the connecting pipe 4, a dehydration tower 6 is fixedly connected to one end of the connecting pipe 4, a circulating water tank 7 is arranged inside the dehydration tower 6, a reduction platform 8 is fixedly connected to the inner wall of the dehydration tower 6, a hydraulic pump 9 is fixedly connected to the dehydration tower 6, a water pipe 10 is fixedly connected to the output end of the hydraulic pump 9, a spray head 11 is fixedly connected to one end of the water pipe 10, a dehumidification net 12 is arranged on the inner wall of the dehydration tower 6, and a fixed component is arranged inside the desulfurization tower 1.

[0024] Specifically, the desulfurized gas is pumped into the dehydration tower 6 by the booster pump 5. The circulating water tank 7 inside the dehydration tower 6 contains a substance that can capture fine particles in the gas. The liquid is sprayed out from the spray head 11 and falls on the upper surface of the reduction table 8, thereby increasing the contact area between the liquid and the gas, thereby achieving the effect of improving the treatment efficiency. The gas is discharged from the dehydration tower 6 through the dehumidification net 12. The dehumidification net 12 generates a high-voltage electric field to capture water vapor in the gas, further filter the gas, and make the gas discharged from the device cleaner, thereby achieving the effect of improving the exhaust gas treatment efficiency.

[0025] Reference Figure 1 and Figure 2The fixed component includes a filter block 17, the filter block 17 is fixedly connected to the inside of the input pipe 3, a side door 19 is provided inside the filter block 17, a filter screen 18 is fixedly connected to the inside of the filter block 17, a desulfurization tower 1 is fixedly connected to the outlet pipe 16, a fixed block 13 is provided inside the input pipe 3, a nozzle 14 is fixedly connected to the fixed block 13, a plurality of fixed platforms 15 are fixedly connected to the outer wall of the input pipe 3, a motor 20 is fixedly connected to the upper surface of the desulfurization tower 1, a cleaning block 21 is fixedly connected to the output end of the motor 20, the outer wall of the cleaning block 21 is attached to the inner wall of the desulfurization tower 1, and a slot 22 is opened inside the reduction platform 8.

[0026] Specifically, the filter screen 18 connected to the filter block 17 inside the input pipe 3 can intercept large particles of the limestone slurry, and the side door 19 facilitates the regular cleaning of fixed impurities, thereby improving the convenience of using the device. The multiple fixed platforms 15 on the outer wall of the input pipe 3 increase the reaction area between the limestone slurry and the gas, thereby improving the desulfurization efficiency. When the inside of the desulfurization tower 1 needs to be cleaned, the cleaning block 21 can be driven to rotate by the motor 20 so that the cleaning block 21 can clean the inner wall of the desulfurization tower 1, avoiding the trouble of manual cleaning and improving the convenience of the device.

[0027] Working principle: When the desulfurization treatment device for graphitized tail gas is needed, the tail gas first enters the desulfurization tower 1 through the intake pipe 2, and the limestone slurry enters the nozzle 14 connected to the fixed block 13 from the input pipe 3 and is sprayed inside the desulfurization tower 1. The sulfur-containing gas in the exhaust gas reacts with the limestone slurry to achieve the effect of reducing harmful substances in the exhaust gas. Then, the slurry can be temporarily retained on the fixed platform 15 through the fixed platform 15 fixedly connected to the outer wall of the input pipe 3. Multiple fixed platforms 15 are arranged on the outer wall of the input pipe 3 to increase the reaction area and achieve the effect of improving the conversion efficiency. The reaction sediments remain at the bottom of the desulfurization tower 1 and can be discharged through the outlet pipe 16, and then filtered through the filter 18 connected to the filter block 17 inside the input pipe 3 to filter the limestone. The large solid particles in the limestone slurry can avoid clogging the input pipe 3 and increasing the maintenance cost. The solid impurities filtered by the filter 18 can be discharged through the side door 19, so as to improve the convenience of using the shared paper. Since the saturated flue gas after desulfurization carries a large number of water droplets and fine particles, the exhaust gas after desulfurization is still not environmentally friendly enough. Therefore, a dehydration tower 6 is set on one side of the desulfurization tower 1, and the booster pump 5 pumps the desulfurized gas into the dehydration tower 6. The liquid in the circulating water tank 7 is sent to the spray head 11 through the hydraulic pump 9, so that the fine particles in the gas are collected. The dehumidification net 12 inside the dehydration tower 6 can intercept and treat the water vapor in the gas, reduce the possibility of acid rain formation, and achieve the effect of further treating harmful substances in the gas.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A desulfurization treatment device for graphitized tail gas, comprising a desulfurization tower (1), characterized in that: The desulfurization tower (1) is fixedly connected to an air inlet pipe (2), the desulfurization tower (1) is fixedly connected to an input pipe (3), the desulfurization tower (1) is fixedly connected to a connecting pipe (4), a booster pump (5) is arranged inside the connecting pipe (4), one end of the connecting pipe (4) is fixedly connected to a dehydration tower (6), a circulating water tank (7) is arranged inside the dehydration tower (6), a reduction platform (8) is fixedly connected to the inner wall of the dehydration tower (6), a hydraulic pump (9) is fixedly connected to the inner wall of the hydraulic pump (9), a water pipe (10) is fixedly connected to the output end of the hydraulic pump (9), a spray head (11) is fixedly connected to one end of the water pipe (10), a dehumidification net (12) is arranged on the inner wall of the dehydration tower (6), and a fixed component is arranged inside the desulfurization tower (1).

2. The desulfurization treatment device for graphitized tail gas according to claim 1, characterized in that: The fixed assembly comprises a filter block (17), the interior of the filter block (17) being fixedly connected to the interior of the input pipe (3), and a side door (19) being provided inside the filter block (17).

3. The desulfurization treatment device for graphitized tail gas according to claim 2, characterized in that: A filter screen (18) is fixedly connected inside the filter block (17), and a desulfurization tower (1) is fixedly connected inside the desulfurization tower (1).

4. The desulfurization treatment device for graphitized tail gas according to claim 1, characterized in that: A fixing block (13) is arranged inside the input pipe (3), and a nozzle (14) is fixedly connected inside the fixing block (13).

5. The desulfurization treatment device for graphitized tail gas according to claim 4, characterized in that: A plurality of fixing platforms (15) are fixedly connected to the outer wall of the input pipe (3).

6. The desulfurization treatment device for graphitized tail gas according to claim 1, characterized in that: A motor (20) is fixedly connected to the upper surface of the desulfurization tower (1), and a cleaning block (21) is fixedly connected to the output end of the motor (20).

7. The desulfurization treatment device for graphitized tail gas according to claim 6, characterized in that: The outer wall of the cleaning block (21) is attached to the inner wall of the desulfurization tower (1).

8. The desulfurization treatment device for graphitized tail gas according to claim 1, characterized in that: The deceleration platform (8) is provided with a slot (22) inside.

Images