Waste gas desulfurization treatment device

Abstract

The utility model discloses a waste gas desulfurization treatment device, which belongs to the technical field of waste gas desulfurization, and comprises a base, the top surface of the base is fixedly connected with a desulfurization box, the top surface of the base is fixedly provided with an exhaust fan, the output end of the exhaust fan is provided with a filtering mechanism, and the side part of the desulfurization box is fixedly sleeved with a curved heat exchange copper pipe. According to the utility model, waste gas is guided into the inner cavity of the aeration box through the exhaust fan, the filter box and the curved heat exchange copper pipe, and the waste gas in the aeration box is sprayed into the liquid desulfurizer in the inner cavity of the desulfurization box from the plurality of one-way valves, so that the waste gas is subjected to primary desulfurization by utilizing the liquid desulfurizer; the liquid desulfurizing agent is guided into the inner cavity of the annular liquid spraying pipe through cooperation of the liquid suction pump and the liquid guide pipe, the desulfurizing agent in the annular liquid spraying pipe is atomized downwards and sprayed out, and the sprayed desulfurizing agent makes contact with the upwards moving waste gas again, so that the waste gas is desulfurized again.

Description

Technical Field

[0001] This utility model relates to the field of waste gas desulfurization technology, and more specifically, to a waste gas desulfurization treatment device. Background Technology

[0002] A gasifier is a device that converts solid fuels (such as coal and biomass) into syngas under oxygen-deficient or limited oxygen conditions. It uses high temperature and an oxygen-deficient or limited oxygen atmosphere to cause a gasification reaction in the solid fuel, producing syngas containing gases such as carbon monoxide, hydrogen, and methane. These gases can be used in power generation, thermal energy production, chemical processing, and fuel preparation. However, the gases produced by gasifiers contain sulfides, which have a significant environmental impact.

[0003] A search revealed that utility model patent CN220834885U discloses a waste gas desulfurization treatment device, including a base. A desulfurization box is fixedly installed on the top of one side of the base. A frame is fixedly installed in the middle of the top of the side of the base away from the desulfurization box. An exhaust fan is fixedly installed on the top of the frame. The two ends of the exhaust fan are respectively connected to a waste gas inlet and a gas transmission pipe. A liquid inlet and a sewage outlet are respectively connected at diagonal points on the side of the desulfurization box away from the exhaust fan. A connecting pipe is connected to the top of the other side of the gas transmission pipe. The end of the connecting pipe away from the gas transmission pipe passes through the top right side of the desulfurization box and is located at the bottom of the desulfurization box. This patent uses the desulfurization box, exhaust fan, waste gas inlet, gas transmission pipe, connecting pipe, gas outlet trough and cold water pipe in combination. This not only desulfurizes the waste gas, but also recovers the heat from the waste gas and cools it.

[0004] However, the aforementioned patents have the following shortcomings: the desulfurization effect is unsatisfactory simply by passing the exhaust gas into the liquid desulfurization agent in the desulfurization box; furthermore, the process of absorbing heat from the exhaust gas through the liquid desulfurization agent and then absorbing the heat from the liquid desulfurization agent through a cold water pipe, involving multiple heat exchange processes, affects the efficiency of heat recovery. Therefore, we propose an exhaust gas desulfurization treatment device. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a waste gas desulfurization treatment device.

[0006] To solve the above problems, the present invention adopts the following technical solution:

[0007] A waste gas desulfurization treatment device includes a base, a desulfurization box fixedly connected to the top surface of the base, an exhaust fan fixedly installed on the top surface of the base, a filter mechanism provided at the output end of the exhaust fan, a curved heat exchange copper tube fixedly sleeved on the side of the desulfurization box, one end of the curved heat exchange copper tube being connected to the filter mechanism, an absorption mechanism provided on the top surface of the base, the other end of the curved heat exchange copper tube extending into the inner cavity of the desulfurization box and fixedly sleeved with an aeration box, multiple one-way valves fixedly installed on the top of the aeration box, an adsorption mechanism provided on the top of the desulfurization box, a liquid pump fixedly installed on the back of the desulfurization box, the input end of the liquid pump extending into the inner cavity of the desulfurization box, a liquid guide pipe fixedly connected to the output end of the liquid pump, the end of the liquid guide pipe extending to the top of the inner cavity of the desulfurization box and fixedly sleeved with an annular spray pipe, and multiple atomizing nozzles fixedly installed at the bottom of the annular spray pipe.

[0008] As a preferred embodiment of this utility model, the absorption mechanism includes a hot water exchange tank fixedly connected to the top surface of the base, one end of the curved heat exchange copper tube fixedly sleeved in the inner cavity of the hot water exchange tank, a water pump fixedly installed on the top surface of the hot water exchange tank, an inlet pipe fixedly connected to the input end of the water pump, the output end of the water pump extending into the inner cavity of the hot water exchange tank, a drain valve fixedly installed at the bottom of the outer side of the hot water exchange tank, a temperature sensor fixedly installed at the bottom of the inner cavity of the hot water exchange tank, and a liquid level sensor installed at the top of the inner cavity of the hot water exchange tank.

[0009] As a preferred embodiment of the present invention, the filtration mechanism includes a filter box fixedly sleeved at the output end of the exhaust fan, the end of the curved heat exchange copper tube fixedly sleeved to the inner cavity of the filter box, a filter screen fixedly sleeved in the inner cavity of the filter box, and a sealing door hinged to the front of the filter box.

[0010] As a preferred embodiment of this utility model, the adsorption mechanism includes an adsorption box fixedly sleeved on the top of the desulfurization box, the bottom surface of the adsorption box is provided with multiple exhaust holes, the top of the adsorption box is fixedly connected with an exhaust pipe, the inner cavity of the adsorption box is sleeved with an activated carbon plate, and the front of the adsorption box is hinged with a sealing plate.

[0011] As a preferred embodiment of this utility model, a drain valve is fixedly installed on the side of the bottom end of the desulfurization tank, and a threaded plug is threadedly installed on the top of the desulfurization tank.

[0012] As a preferred embodiment of this utility model, a control panel is fixedly installed on the front of the desulfurization box.

[0013] Compared with existing technologies, the advantages of this utility model are:

[0014] (1) In this utility model, the exhaust gas is introduced into the inner cavity of the aeration box through the exhaust fan, filter box and curved heat exchange copper tube, and the exhaust gas in the aeration box is sprayed into the liquid desulfurizing agent in the inner cavity of the desulfurization box through multiple one-way valves. The liquid desulfurizing agent is used to desulfurize the exhaust gas once. The liquid desulfurizing agent is introduced into the inner cavity of the annular spray pipe through the cooperation of the liquid pump and the liquid guide pipe, and the desulfurizing agent in the annular spray pipe is atomized and sprayed downward. The sprayed desulfurizing agent comes into contact with the upward-moving exhaust gas again, thereby desulfurizing the exhaust gas again.

[0015] (2) In this utility model, when the waste gas flows in the curved heat exchange copper tube, the water in the inner cavity of the heat exchange tank and the waste gas in the curved heat exchange copper tube are used to exchange heat, so that the water in the inner cavity of the heat exchange tank can directly recover the heat in the waste gas, ensuring the effect of heat recovery and good practicality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the front of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of the back of this utility model;

[0018] Figure 3 This is a schematic cross-sectional view of the present invention;

[0019] Figure 4 This is a cross-sectional schematic diagram of the desulfurization box of this utility model;

[0020] Figure 5 This is a cross-sectional schematic diagram of the hot water exchange tank of this utility model;

[0021] Figure 6 This is a cross-sectional schematic diagram of the filter box of this utility model;

[0022] Figure 7 This is a cross-sectional schematic diagram of the adsorption box of this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. Base; 2. Desulfurization box; 3. Adsorption mechanism; 4. Exhaust fan; 5. Filtration mechanism; 6. Curved heat exchange copper tube; 7. Aeration box; 8. One-way valve; 9. Absorption mechanism; 10. Liquid pump; 11. Liquid guide pipe; 12. Annular spray pipe; 13. Atomizing nozzle; 14. Hot water tank; 15. Water pump; 16. Inlet pipe; 17. Drain valve; 18. Temperature sensor; 19. Liquid level sensor; 20. Filter box; 21. Filter screen; 22. Sealing door; 23. Adsorption box; 24. Sealing plate; 25. Exhaust pipe; 26. Exhaust hole; 27. Activated carbon plate; 28. Drain valve; 29. ​​Control panel; 30. Threaded plug. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example:

[0029] Please see Figure 1-7 A waste gas desulfurization treatment device includes a base 1, a desulfurization box 2 fixedly connected to the top surface of the base 1, an exhaust fan 4 fixedly installed on the top surface of the base 1, a filter mechanism 5 provided at the output end of the exhaust fan 4, a curved heat exchange copper tube 6 fixedly sleeved on the side of the desulfurization box 2, one end of the curved heat exchange copper tube 6 being connected to the filter mechanism 5, an absorption mechanism 9 provided on the top surface of the base 1, and the other end of the curved heat exchange copper tube 6 extending into the inner cavity of the desulfurization box 2 and fixedly sleeved with an aeration box. 7. Multiple one-way valves 8 are fixedly installed on the top of the aeration box 7. An adsorption mechanism 3 is provided on the top of the desulfurization box 2. A liquid pump 10 is fixedly installed on the back of the desulfurization box 2. The input end of the liquid pump 10 extends into the inner cavity of the desulfurization box 2. A liquid guide pipe 11 is fixedly connected to the output end of the liquid pump 10. The end of the liquid guide pipe 11 extends into the top of the inner cavity of the desulfurization box 2 and is fixedly sleeved with an annular spray pipe 12. Multiple atomizing nozzles 13 are fixedly installed at the bottom of the annular spray pipe 12.

[0030] For details, please refer to Figure 1 , Figure 3 and Figure 5 The absorption mechanism 9 includes a hot water tank 14 fixedly connected to the top surface of the base 1. One end of the curved heat exchange copper tube 6 is fixedly sleeved in the inner cavity of the hot water tank 14. A water pump 15 is fixedly installed on the top surface of the hot water tank 14. An inlet pipe 16 is fixedly connected to the input end of the water pump 15. The output end of the water pump 15 extends into the inner cavity of the hot water tank 14. A drain valve 17 is fixedly installed at the bottom of the outer side of the hot water tank 14. A temperature sensor 18 is fixedly installed at the bottom of the inner cavity of the hot water tank 14. A liquid level sensor 19 is installed at the top of the inner cavity of the hot water tank 14.

[0031] In this embodiment, the temperature sensor 18 measures the water temperature in the hot water exchange tank 14, and the level sensor 19 controls the water volume in the hot water exchange tank 14.

[0032] For details, please refer to Figure 1 , Figure 2 and Figure 6 The filtration mechanism 5 includes a filter box 20 fixedly sleeved at the output end of the exhaust fan 4, the end of the curved heat exchange copper tube 6 fixedly sleeved to the inner cavity of the filter box 20, a filter screen 21 fixedly sleeved in the inner cavity of the filter box 20, and a sealing door 22 hinged to the front of the filter box 20.

[0033] In this embodiment, the dust in the exhaust gas is blocked and filtered by the filter screen 21, and the dust in the filter box 20 is cleaned out by opening the sealing door 22.

[0034] For details, please refer to Figure 1 and Figure 7 The adsorption mechanism 3 includes an adsorption box 23 fixedly sleeved on the top of the desulfurization box 2. The bottom surface of the adsorption box 23 is provided with multiple exhaust holes 26. An exhaust pipe 25 is fixedly connected to the top of the adsorption box 23. An activated carbon plate 27 is sleeved in the inner cavity of the adsorption box 23. A sealing plate 24 is hinged to the front of the adsorption box 23.

[0035] In this embodiment, the side of the activated carbon plate 27 is in contact with the inner wall of the adsorption box 23 and the inner side of the sealing plate 24 to ensure that the activated carbon plate 27 can completely adsorb the waste gas.

[0036] For details, please refer to Figure 2 A drain valve 28 is fixedly installed on the side of the bottom end of the desulfurization tank 2, and a threaded plug 30 is threadedly installed on the top of the desulfurization tank 2.

[0037] In this embodiment, the liquid desulfurizing agent in the desulfurization tank 2 is released and replaced by draining valve 28, and the liquid desulfurizing agent is put into the inner cavity of the desulfurization tank 2 by opening threaded plug 30.

[0038] For details, please refer to Figure 1A control panel 29 is fixedly installed on the front of the desulfurization box 2.

[0039] In this embodiment, the exhaust fan 4, water pump 15, and liquid pump 10 are controlled via the control panel 29.

[0040] Working principle: In use, first connect the input end of the exhaust fan 4 to the exhaust port of the gasifier. Start the exhaust fan 4 to draw the exhaust gas into the inner cavity of the filter box 20. The dust in the exhaust gas is filtered through the filter screen 21 in the inner cavity of the filter box 20. The filtered air enters the inner cavity of the aeration box 7 through the curved heat exchange copper tube 6. The one-way valve 8 guides the exhaust gas in the aeration box 7 into the liquid desulfurizing agent in the inner cavity of the desulfurization box 2, thereby desulfurizing the exhaust gas. In addition, when the curved heat exchange copper tube 6 guides the exhaust gas, the water in the inner cavity of the heat exchange tank 14 and the exhaust gas in the curved heat exchange copper tube 6 enter the aeration box 7. Heat exchange is performed by using water in the inner cavity of the heat exchange tank 14 to absorb heat from the exhaust gas. Then, the liquid pump 10 is started to draw the liquid desulfurizing agent at the bottom of the inner cavity of the desulfurization tank 2 from the liquid guide pipe 11 to the inner cavity of the annular spray pipe 12. The liquid desulfurizing agent in the inner cavity of the annular spray pipe 12 is then atomized and sprayed out from the atomizing nozzle 13. The atomized desulfurizing agent comes into contact with the rising exhaust gas, thereby desulfurizing the exhaust gas again. Finally, the desulfurized exhaust gas enters the inner cavity of the adsorption tank 23 through the exhaust port 26. The odor in the exhaust gas is adsorbed by the activated carbon plate 27. The adsorbed exhaust gas is discharged from the exhaust pipe 25.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A waste gas desulfurization treatment device comprising a base (1), characterized in that: The top surface of the base (1) is fixedly connected with a desulfurization tank (2), the top surface of the base (1) is fixedly installed with an air extractor (4), the output end of the air extractor (4) is provided with a filtering mechanism (5), the side of the desulfurization tank (2) is fixedly sleeved with a curved heat exchange copper pipe (6), one end of the curved heat exchange copper pipe (6) is connected with the filtering mechanism (5), the top surface of the base (1) is provided with an absorption mechanism (9), the other end of the curved heat exchange copper pipe (6) extends to the inner cavity of the desulfurization tank (2) and is fixedly sleeved with an aeration tank (7), the top of the aeration tank (7) is fixedly installed with a plurality of one-way valves (8), the top of the desulfurization tank (2) is provided with an adsorption mechanism (3), the back of the desulfurization tank (2) is fixedly installed with a liquid pump (10), the input end of the liquid pump (10) extends to the inner cavity of the desulfurization tank (2), the output end of the liquid pump (10) is fixedly connected with a liquid guide pipe (11), the end of the liquid guide pipe (11) extends to the top of the inner cavity of the desulfurization tank (2) and is fixedly sleeved with an annular liquid spraying pipe (12), the bottom of the annular liquid spraying pipe (12) is fixedly installed with a plurality of atomizing nozzles (13).

2. A waste gas desulfurization treatment device according to claim 1, characterized by: The absorption mechanism (9) comprises a heat exchange water tank (14) fixedly connected to the top surface of the base (1), one end of the curved heat exchange copper pipe (6) is fixedly sleeved in the inner cavity of the heat exchange water tank (14), the top surface of the heat exchange water tank (14) is fixedly installed with a water pump (15), the input end of the water pump (15) is fixedly connected with a water inlet pipe (16), the output end of the water pump (15) extends to the inner cavity of the heat exchange water tank (14), the bottom of the outer side of the heat exchange water tank (14) is fixedly installed with a drain valve (17), the bottom of the inner cavity of the heat exchange water tank (14) is fixedly installed with a temperature sensor (18), and the top of the inner cavity of the heat exchange water tank (14) is provided with a liquid level sensor (19).

3. A waste gas desulfurization treatment device according to claim 2, characterized by: The filtering mechanism (5) comprises a filtering tank (20) fixedly sleeved at the output end of the air extractor (4), the end of the curved heat exchange copper pipe (6) is fixedly sleeved to the inner cavity of the filtering tank (20), the inner cavity of the filtering tank (20) is fixedly sleeved with a filter screen (21), and the front of the filtering tank (20) is hinged with a sealing door (22).

4. The waste gas desulfurization treatment device according to claim 1, characterized by: The adsorption mechanism (3) comprises an adsorption tank (23) fixedly sleeved at the top of the desulfurization tank (2), a plurality of exhaust holes (26) are formed in the bottom surface of the adsorption tank (23), the top of the adsorption tank (23) is fixedly connected with an exhaust pipe (25), the inner cavity of the adsorption tank (23) is sleeved with an activated carbon plate (27), and the front of the adsorption tank (23) is hinged with a sealing plate (24).

5. The waste gas desulfurization treatment device according to claim 1, characterized by: The side of the bottom end of the desulfurization tank (2) is fixedly installed with a liquid discharge valve (28), and the top of the desulfurization tank (2) is threadedly installed with a threaded plug (30).

6. A waste gas desulfurization treatment device according to claim 1, characterized by: The front of the desulfurization tank (2) is fixedly installed with a control panel (29).

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