Environment-friendly flue gas desulfurization device

Abstract

The utility model relates to flue gas desulfurization technical field, and disclose a kind of environmental protection flue gas desulfurization device, including device shell, the outer wall of device shell is connected with conveying pipe, the end of conveying pipe is equipped with the heat exchange mechanism for heat exchange to flue gas, the right side of heat exchange mechanism is equipped with the filtering mechanism for filtering to flue gas, the inside of device shell is equipped with the desulfurization mechanism for desulfurization to flue gas;The heat exchange mechanism includes heat exchange piece, the heat exchange piece is connected in the end of conveying pipe, the inside of heat exchange piece is equipped with two mounting plates. The utility model is extracted by submersible pump and is sent to mounting plate in heat exchange liquid in liquid storage tank, then flows into several heat exchange pipes, and when flue gas passes through heat exchange pipe, heat exchange pipe will absorb the heat in flue gas, so that these heat is transferred to heat exchange liquid, and then the heat in flue gas is recycled, while the heat in flue gas can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of flue gas desulfurization technology, specifically an environmentally friendly flue gas desulfurization device. Background Technology

[0002] Environmentally friendly flue gas desulfurization (FGD) devices are environmentally friendly equipment used to remove sulfur dioxide (SO2) from industrial flue gas. They aim to reduce air pollution, meet environmental regulations, and promote the green transformation of industry. Through physical, chemical, or biological methods, SO2 in the flue gas is converted into solid or liquid byproducts (such as gypsum and ammonium sulfate), thereby reducing SO2 emission concentrations. Alternatively, spray drying or circulating fluidized bed technology can be used to react desulfurizing agents (such as lime) with SO2 in the flue gas to generate dry byproducts.

[0003] In existing technologies, such as the environmentally friendly flue gas desulfurization device disclosed in CN210699382U, a housing is included. The interior of the housing is divided into a first chamber and a second chamber by fixedly installed baffles. This invention, through the coordinated use of a first and second filter screen, a brush, and a first water pump, enables the brush mounted on a straight rod to clean the second filter screen, preventing clogging. Through the coordinated use of three baffles, a second water pump, a spray pipe, and a filter element, a curved channel is formed internally. Harmful gases in the flue gas are then treated by spraying. After passing through the curved channel, most of the harmful gases are removed, and then the flue gas passes through the filter element, completing the flue gas desulfurization process with good desulfurization effect.

[0004] The existing device, through the coordinated use of three baffles, a second water pump, a spray pipe, and a filter element, can form a curved channel inside. After the flue gas passes through the curved channel, most of the harmful gases are removed. Then, it passes through the filter element to complete the flue gas desulfurization treatment, which has a good desulfurization effect. However, since the flue gas emitted during the chemical and metallurgical process contains heat, it cannot recover the heat. Instead, the flue gas carrying heat is directly emitted after desulfurization, resulting in poor environmental protection performance. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Given the problems existing in the above-mentioned prior art, namely that the flue gas emitted during the chemical and metallurgical process contains heat and cannot be recovered, but is directly emitted after desulfurization, the environmental protection effect is poor.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An environmentally friendly flue gas desulfurization device includes a device shell, the outer wall of which is connected to a conveying pipe, the end of which is provided with a heat exchange mechanism for exchanging heat with flue gas, the right side of which is provided with a filtration mechanism for filtering flue gas, and the inside of the device shell is provided with a desulfurization mechanism for desulfurizing flue gas.

[0009] The heat exchange mechanism includes a heat exchange component connected to the end of a delivery pipe. Two mounting plates are installed inside the heat exchange component, and heat exchange pipes are connected to the side walls of both mounting plates. One end of one of the mounting plates is connected to a water delivery pipe.

[0010] As a further improvement of this utility model: the end of the water supply pipe is connected to a submersible pump, and a liquid storage tank is installed on the outside of the submersible pump.

[0011] As a further improvement of this utility model, the side wall of the liquid storage tank is connected to a return pipe that is interconnected with another mounting plate.

[0012] As a further embodiment of this utility model: the filtration mechanism includes an installation component, which is connected to one side of the heat exchange component, and a filter screen is installed inside the installation component.

[0013] As a further improvement of this utility model: a fixing plate is connected to the right side of the mounting component, and a fixing bolt that is threadedly connected to the mounting component is installed inside the fixing plate.

[0014] As a further improvement of this utility model, a protective cover is welded to the upper surface of the device housing.

[0015] As a further embodiment of this utility model: the desulfurization mechanism includes a spray component, which is fixed inside the outer shell of the device, and the lower surface of the spray component is connected to a plurality of atomizing nozzles.

[0016] As a further embodiment of this utility model: the upper surface of the spraying component is connected to a connecting pipe, the end of the connecting pipe is connected to a conveying pump, an activated carbon plate fixedly connected to the outer shell of the device is provided above the spraying component, and an exhaust fan bolted to the outer shell of the device is provided on the upper surface of the outer shell of the device.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model uses a submersible pump to extract the heat exchange liquid from the storage tank, and then transports the heat exchange liquid to the mounting plate through a water pipe. The liquid then flows into several heat exchange tubes. When the flue gas passes through the heat exchange tubes, the heat exchange tubes absorb the heat in the flue gas, and this heat is transferred to the heat exchange liquid, thereby recovering the heat in the flue gas and reducing the heat in the flue gas.

[0019] 2. This utility model can extract the desulfurization liquid through a pump and transport it to the spray unit through a connecting pipe, so that several atomizing nozzles spray water downwards to desulfurize the flue gas. The sprayed water falls to the lower end and can be discharged to the outside through the sewage pipe for recycling. The desulfurized flue gas is then purified by the activated carbon plate, and the exhaust fan can play an auxiliary role in exhaust. Attached Figure Description

[0020] Figure 1 A three-dimensional structural diagram of an environmentally friendly flue gas desulfurization device;

[0021] Figure 2 This is a three-dimensional structural diagram of a heat exchanger in an environmentally friendly flue gas desulfurization device.

[0022] Figure 3 This is a schematic cross-sectional view of a heat exchanger in an environmentally friendly flue gas desulfurization device.

[0023] Figure 4 This is a schematic diagram of the internal structure of an installation component in an environmentally friendly flue gas desulfurization device.

[0024] Figure 5 This is a schematic diagram of the internal structure of the outer shell of an environmentally friendly flue gas desulfurization device.

[0025] In the diagram: 1. Device casing; 2. Delivery pipe; 3. Heat exchanger; 31. Mounting plate; 32. Heat exchanger tube; 33. Water delivery pipe; 34. Submersible pump; 35. Storage tank; 36. Return pipe; 4. Mounting components; 41. Filter screen; 42. Fixing plate; 43. Fixing bolts; 5. Protective cover; 6. Spraying components; 61. Atomizing nozzle; 62. Connecting pipe; 63. Delivery pump; 64. Activated carbon plate; 65. Exhaust fan. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0029] Example 1:

[0030] Please see Figures 1-5 This is the first embodiment of the present invention.

[0031] This embodiment provides an environmentally friendly flue gas desulfurization device, including a device shell 1, a conveying pipe 2 connected to the outer wall of the device shell 1, a heat exchange mechanism for exchanging heat with flue gas at the end of the conveying pipe 2, a filtration mechanism for filtering flue gas on the right side of the heat exchange mechanism, and a desulfurization mechanism for desulfurizing flue gas inside the device shell 1.

[0032] The heat exchange mechanism includes a heat exchange component 3, which is connected to the end of the conveying pipe 2. Two mounting plates 31 are installed inside the heat exchange component 3. The side walls of the two mounting plates 31 are connected to heat exchange pipes 32. One end of one of the mounting plates 31 is connected to a water supply pipe 33.

[0033] Specifically, the end of the water supply pipe 33 is connected to a submersible pump 34, and a liquid storage tank 35 is installed on the outside of the submersible pump 34.

[0034] Furthermore, the submersible pump 34 extracts the heat exchange fluid from the storage tank 35 and transports it to the mounting plate 31 via the water pipe 33.

[0035] Specifically, the side wall of the liquid storage tank 35 is connected to a return pipe 36 that is interconnected with another mounting plate 31.

[0036] Furthermore, by continuously supplying heat exchange fluid to the heat exchange tube 32, with the cooperation of the return pipe 36, the heat exchange fluid can re-enter the storage tank 35 for recycling.

[0037] In use, the outer casing 1 of the device is placed in a suitable position, and the filtered flue gas enters the heat exchanger 3. At this time, the submersible pump 34 is started to draw out the heat exchange liquid in the storage tank 35 and transport it to the mounting plate 31 through the water pipe 33. Then it flows into several heat exchange tubes 32. When the flue gas passes through the heat exchange tubes 32, the heat exchange tubes 32 absorb the heat in the flue gas, so that this heat is transferred to the heat exchange liquid, thereby recovering the heat in the flue gas and reducing the heat in the flue gas. With the cooperation of the return pipe 36, the heat exchange liquid can re-enter the storage tank 35 for recycling. When the heat exchange liquid in the storage tank 35 is heated to the set temperature, the heat exchange liquid in the storage tank 35 can be replaced through the external pipe. The cooled flue gas enters the outer casing 1 of the device through the delivery pipe 2.

[0038] In summary, when the environmentally friendly flue gas desulfurization device is in use, the submersible pump 34 draws out the heat exchange liquid from the storage tank 35, and transports the heat exchange liquid to the mounting plate 31 through the water pipe 33. Then it flows into several heat exchange tubes 32. When the flue gas passes through the heat exchange tubes 32, the heat exchange tubes 32 absorb the heat in the flue gas, so that this heat is transferred to the heat exchange liquid, thereby recovering the heat in the flue gas and reducing the heat in the flue gas.

[0039] Example 2:

[0040] Please see Figures 1-5 This is the second embodiment of the present utility model.

[0041] Specifically, the filtration mechanism includes a mounting component 4, which is connected to one side of the heat exchange component 3, and a filter screen 41 is installed inside the mounting component 4.

[0042] Furthermore, the filter screen 41 inside the mounting component 4 can filter impurities in the flue gas.

[0043] Specifically, a fixing plate 42 is connected to the right side of the mounting component 4, and a fixing bolt 43 that is threadedly connected to the mounting component 4 is installed inside the fixing plate 42. A protective cover 5 is welded to the upper surface of the device housing 1.

[0044] Furthermore, by unscrewing the fixing bolts 43 on the mounting part 4, the mounting part 4 can be disassembled, making it convenient to replace the internal filter screen 41.

[0045] Specifically, the desulfurization mechanism includes a spray component 6, which is fixed inside the outer casing 1 of the device. Several atomizing nozzles 61 are connected to the lower surface of the spray component 6.

[0046] Furthermore, the delivery pump 63 extracts the desulfurization liquid and delivers it to the spray unit 6 through the connecting pipe 62, so that several atomizing nozzles 61 spray mist water downwards.

[0047] Specifically, the upper surface of the spray component 6 is connected to a connecting pipe 62, the end of the connecting pipe 62 is connected to a conveying pump 63, an activated carbon plate 64 is fixedly connected to the device housing 1 above the spray component 6, and an exhaust fan 65 is bolted to the device housing 1 on the upper surface of the device housing 1.

[0048] Furthermore, the desulfurized flue gas is purified by the activated carbon plate 64, and the exhaust fan 65 plays an auxiliary role in exhausting the gas, which is discharged to the outside through the protective cover 5.

[0049] In use, the external flue gas pipe is connected to the pipe on the fixed plate 42, allowing the flue gas to enter the mounting part 4. After passing through the filter screen 41 inside the mounting part 4, impurities in the flue gas can be filtered. By unscrewing the fixing bolts 43 on the mounting part 4, the mounting part 4 can be disassembled, making it convenient to replace the internal filter screen 41. The delivery pump 63 is connected to the external desulfurization liquid tank. Starting the delivery pump 63 can extract the desulfurization liquid and deliver it to the spray part 6 through the connecting pipe 62, causing several atomizing nozzles 61 to spray water downwards to desulfurize the flue gas. The sprayed water falls to the lower end and can be discharged to the outside through the drain pipe for recycling. The desulfurized flue gas is then purified by the activated carbon plate 64. The exhaust fan 65 plays an auxiliary role in exhausting the gas, which is discharged to the outside through the protective cover 5.

[0050] In summary, when the environmentally friendly flue gas desulfurization device is in use, the submersible pump 34 extracts the heat exchange liquid from the storage tank 35, and transports the heat exchange liquid to the mounting plate 31 through the water pipe 33. Then, it flows into several heat exchange tubes 32. When the flue gas passes through the heat exchange tubes 32, the heat exchange tubes 32 absorb the heat in the flue gas, so that this heat is transferred to the heat exchange liquid, thereby recovering the heat in the flue gas and reducing the heat in the flue gas. The delivery pump 63 can extract the desulfurization liquid and transport it to the spray component 6 through the connecting pipe 62, so that several atomizing nozzles 61 spray water mist downwards to desulfurize the flue gas.

[0051] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0052] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0053] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An environmentally friendly flue gas desulfurization device, comprising a device housing (1), characterized in that: The outer wall of the device housing (1) is connected to a conveying pipe (2). The end of the conveying pipe (2) is provided with a heat exchange mechanism for exchanging heat with flue gas. The right side of the heat exchange mechanism is provided with a filter mechanism for filtering flue gas. The inside of the device housing (1) is provided with a desulfurization mechanism for desulfurizing flue gas. The heat exchange mechanism includes a heat exchange component (3), which is connected to the end of the conveying pipe (2). Two mounting plates (31) are installed inside the heat exchange component (3). The side walls of the two mounting plates (31) are connected to heat exchange pipes (32), and one end of one of the mounting plates (31) is connected to a water supply pipe (33).

2. The environmentally friendly flue gas desulfurization device according to claim 1, characterized in that: The end of the water supply pipe (33) is connected to a submersible pump (34), and a liquid storage tank (35) is installed on the outside of the submersible pump (34).

3. The environmentally friendly flue gas desulfurization device according to claim 2, characterized in that: The side wall of the liquid storage tank (35) is connected to a return pipe (36) that is connected to another mounting plate (31).

4. The environmentally friendly flue gas desulfurization device according to claim 3, characterized in that: The filtration mechanism includes a mounting component (4), which is connected to one side of the heat exchange component (3), and a filter screen (41) is installed inside the mounting component (4).

5. The environmentally friendly flue gas desulfurization device according to claim 4, characterized in that: A fixing plate (42) is connected to the right side of the mounting component (4), and a fixing bolt (43) that is threadedly connected to the mounting component (4) is installed inside the fixing plate (42).

6. The environmentally friendly flue gas desulfurization device according to claim 5, characterized in that: A protective cover (5) is welded to the upper surface of the device housing (1).

7. The environmentally friendly flue gas desulfurization device according to claim 6, characterized in that: The desulfurization mechanism includes a spray component (6), which is fixed inside the outer shell (1) of the device. The lower surface of the spray component (6) is connected to a plurality of atomizing nozzles (61).

8. The environmentally friendly flue gas desulfurization device according to claim 7, characterized in that: The upper surface of the spray component (6) is connected to a connecting pipe (62), and the end of the connecting pipe (62) is connected to a conveying pump (63). An activated carbon plate (64) is fixedly connected to the outer shell (1) of the device above the spray component (6). An exhaust fan (65) is bolted to the outer shell (1) of the device above the outer shell (1).

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