Hydrogen sulfide removal device

Abstract

The utility model provides a hydrogen sulfide removal device, and relates to the technical field of waste oil treatment, the hydrogen sulfide removal device comprises an absorption tower, an absorption liquid circulation spraying assembly and a filtering assembly, one side of the absorption tower is provided with a gas inlet, the top end of the absorption tower is provided with a gas outlet, the absorption liquid circulation spraying assembly is connected with the absorption tower, and the filtering assembly is connected with the absorption tower. The absorption tower is connected with the gas outlet and is used for spraying absorption liquid into the absorption tower, the filtering assembly is connected with the gas outlet and is used for filtering impurities in gas at the gas outlet and then discharging the gas, the device is simple in structure and reasonable in design, hydrogen sulfide in the gas is absorbed and removed by spraying the absorption liquid, and then the gas is further purified through the filtering assembly; the discharged gas meets the environment-friendly requirement, the process is simple, and the treatment is efficient.

Description

Technical Field

[0001] This application relates to the field of waste oil treatment technology, and more specifically, to a hydrogen sulfide removal device. Background Technology

[0002] Waste lubricating oil contains a certain amount of sulfur, which may originate from additives or base oils in the lubricating oil. During the treatment of waste lubricating oil, this sulfur may participate in a chemical reaction under certain conditions to generate hydrogen sulfide. Hydrogen sulfide is a toxic gas that can irritate human mucous membranes and the optic nerve, causing symptoms such as headaches, dizziness, and difficulty breathing. Therefore, it is necessary to remove the hydrogen sulfide formed during the treatment of waste lubricating oil.

[0003] Currently, hydrogen sulfide removal in waste lubricating oil treatment processes is mostly achieved through multi-stage absorption towers and catalysts. This technology is complex and has low removal efficiency.

[0004] In view of this, the present application aims to provide a hydrogen sulfide removal device to better solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this application is to provide a hydrogen sulfide removal device that can solve the technical problem of efficient treatment of hydrogen sulfide generated during the removal of waste lubricating oil.

[0006] This application provides a hydrogen sulfide removal device, including an absorption tower, an absorbent circulation spray assembly, and a filter assembly. The absorption tower has an inlet on one side and an outlet at the top. The absorbent circulation spray assembly is connected to the absorption tower and is used to spray absorbent into the absorption tower. The filter assembly is connected to the outlet and is used to filter impurities in the gas at the outlet before discharging it.

[0007] Furthermore, a demisting structure is installed at the top of the absorption tower near the air outlet.

[0008] Furthermore, the air inlet is connected to an air inlet pipe, and an exhaust fan is provided on the air inlet pipe.

[0009] Furthermore, the absorbent circulation spray assembly includes a circulation pipe, a filter, a booster pump, and a spray head. Both ends of the circulation pipe are connected to the absorption tower, and the top end of the circulation pipe extends into the absorption tower. The filter and the booster pump are located on the circulation pipe and outside the absorption tower. The spray head is installed at the end of the circulation pipe that extends into the absorption tower and is located above the air inlet.

[0010] Furthermore, the circulation pipe fitting is equipped with a flow regulating valve.

[0011] Furthermore, the filtration assembly includes an activated carbon filter, which is connected to the gas outlet via a main pipeline, and a hydrogen sulfide detector is installed on the main pipeline.

[0012] Furthermore, a bypass pipeline is provided on one side of the main pipeline, and the bypass pipeline is connected to both the main pipeline and the air inlet. Control valves are provided on both the main pipeline and the bypass pipeline.

[0013] The beneficial effects of this utility model are:

[0014] The hydrogen sulfide removal device provided by this utility model includes an absorption tower, an absorbent liquid circulation spray assembly, and a filter assembly. The absorption tower has an inlet on one side and an outlet at its top. The absorbent liquid circulation spray assembly is connected to the absorption tower and sprays absorbent liquid into the tower. The filter assembly is connected to the outlet and filters impurities from the gas before discharging it. This utility model has a simple structure and reasonable design. It absorbs and removes hydrogen sulfide from the gas by spraying absorbent liquid, and then further purifies the gas through the filter assembly, ensuring that the discharged gas meets environmental protection requirements. The process is simple and highly efficient. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 These are schematic diagrams of the structure in some embodiments of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the filter component in some embodiments of the present invention.

[0018] The reference numerals in the attached figures are as follows:

[0019] Absorption tower 1, air inlet 11, air outlet 12, demisting structure 13, air inlet pipe fitting 14, induced draft fan 15, absorbent liquid circulation spray assembly 2, circulation pipe fitting 21, filter 22, booster pump 23, spray head 24, flow regulating valve 25, filter assembly 3, main pipeline 31, hydrogen sulfide detector 32, bypass pipeline 33, control valve 34. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of 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. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application 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 on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0025] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] See Figures 1-2As shown, the hydrogen sulfide removal device described in this embodiment includes an absorption tower 1, an absorbent circulation spray assembly 2, and a filter assembly 3. The absorption tower 1 has an inlet 11 on one side and an outlet 12 at the top. The absorbent circulation spray assembly 2 is connected to the absorption tower 1 and is used to spray absorbent into the absorption tower 1. The filter assembly 3 is connected to the outlet 12 and is used to filter impurities in the gas at the outlet 12 before discharging it.

[0027] This embodiment has a simple structure and reasonable design. It absorbs and removes hydrogen sulfide from the gas by spraying an absorbent liquid, and then further purifies the gas by the filter component 3, ensuring that the discharged gas meets environmental protection requirements. The process is simple and efficient.

[0028] In this embodiment, the absorbent is specifically an alkaline solution in the prior art. The waste gas to be treated undergoes an acid-base neutralization reaction with the alkaline washing solution to remove acidic hydrogen sulfide gas, and then the pollutants are adsorbed and removed by the filter component 3 before being discharged.

[0029] Specifically, in this embodiment, a packing layer, such as a Pall ring packing layer, can be set inside the absorption tower 1 to increase the contact area between the waste gas and the liquid, while providing support performance. In addition, multiple layers of absorbent liquid spraying can be set in conjunction with the packing layer.

[0030] In some embodiments, a demisting structure 13 is installed at the top of the absorption tower 1 near the air outlet 12.

[0031] In this embodiment, a demisting structure 13 is installed at the top of the absorption tower 1 near the gas outlet 12, which can effectively remove liquid droplets entrained in the gas, prevent the droplets from polluting the environment or causing equipment corrosion when discharged with the gas, and improve the environmental performance and stability of the device.

[0032] In some embodiments, the air inlet 11 is connected to an air inlet pipe 14, and an exhaust fan 15 is provided on the air inlet pipe 14.

[0033] In this embodiment, an induced draft fan 15 is installed on the air inlet pipe 14 connected to the air inlet 11, which can introduce the gas containing hydrogen sulfide into the absorption tower 1 for treatment, ensuring that the gas can fully contact the absorption liquid and improve the removal efficiency of hydrogen sulfide.

[0034] In some embodiments, the absorbent circulation spray assembly 2 is provided with a circulation pipe 21, a filter 22, a booster pump 23, and a spray head 24. Both ends of the circulation pipe 21 are connected to the absorption tower 1, and the top end of the circulation pipe 21 extends into the absorption tower 1. The filter 22 and the booster pump 23 are disposed on the circulation pipe 21 and located outside the absorption tower 1. The spray head 24 is installed at the end of the circulation pipe 21 that extends into the absorption tower 1 and is located above the air inlet 11.

[0035] In this embodiment, the filter 22 can remove impurities from the absorbent liquid and prevent clogging of the spray head 24; the booster pump 23 provides sufficient pressure so that the absorbent liquid can be sprayed evenly in the absorption tower 1; and the spray head 24 ensures that the absorbent liquid can fully contact the gas, thereby improving the absorption efficiency of hydrogen sulfide.

[0036] In some embodiments, the circulation fitting 21 is provided with a flow regulating valve 25.

[0037] In this embodiment, by setting a flow regulating valve 25 on the circulation pipe 21, the spray volume of the absorbent liquid can be precisely controlled, thereby flexibly adjusting according to the gas flow rate and hydrogen sulfide concentration. This helps to optimize the removal effect of hydrogen sulfide while avoiding waste of resources.

[0038] In some embodiments, the filter assembly 3 is provided with an activated carbon filter 22, which is connected to the gas outlet 12 via a main pipeline 31, and a hydrogen sulfide detector 32 is provided on the main pipeline 31.

[0039] In this embodiment, the activated carbon filter 22 is connected to the gas outlet 12 through the main pipeline 31. The activated carbon filter 22 can further remove pollutants in the gas, ensuring that the discharged gas meets environmental protection standards. At the same time, the hydrogen sulfide detector 32 installed on the main pipeline 31 can monitor the hydrogen sulfide concentration of the gas in real time, ensuring the safe operation of the device.

[0040] In some embodiments, a bypass pipe 33 is provided on one side of the main pipe 31. The bypass pipe 33 is connected to the main pipe 31 and the air inlet 11 respectively. A control valve 34 is provided on the main pipe 31 and the bypass pipe 33 respectively.

[0041] In this embodiment, a bypass pipe 33 is provided on one side of the main pipe 31 and connected to the main pipe 31 and the air inlet 11 respectively. When the hydrogen sulfide detector 32 on the main pipe 31 detects that the hydrogen sulfide concentration exceeds the threshold, the gas can be directly introduced into the air inlet 11 for treatment by opening the control valve 34 on the bypass pipe 33, which effectively ensures the treatment effect.

[0042] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A hydrogen sulfide removal device, characterized in that: The device includes an absorption tower, an absorbent liquid circulation spray assembly, and a filter assembly. The absorption tower has an air inlet on one side and an air outlet at the top. The absorbent liquid circulation spray assembly is connected to the absorption tower and is used to spray absorbent liquid into the absorption tower. The filter assembly is connected to the air outlet and is used to filter impurities in the gas at the air outlet before discharging it.

2. The hydrogen sulfide removal device according to claim 1, characterized in that: A demisting structure is installed at the top of the absorption tower near the air outlet.

3. The hydrogen sulfide removal apparatus according to claim 1, characterized in that: The air inlet is connected to an air inlet pipe, and an exhaust fan is installed on the air inlet pipe.

4. The hydrogen sulfide removal apparatus according to claim 1, characterized in that: The absorbent circulation spray assembly includes a circulation pipe, a filter, a booster pump, and spray heads. Both ends of the circulation pipe are connected to the absorption tower, and the top end of the circulation pipe extends into the absorption tower. The filter and the booster pump are located on the circulation pipe and outside the absorption tower. The spray heads are installed at the end of the circulation pipe that extends into the absorption tower and are located above the air inlet.

5. The hydrogen sulfide removal apparatus according to claim 4, characterized in that: The circulation pipe fitting is equipped with a flow regulating valve.

6. The hydrogen sulfide removal apparatus according to claim 1, characterized in that: The filtration assembly includes an activated carbon filter, which is connected to the gas outlet via a main pipeline, and a hydrogen sulfide detector is installed on the main pipeline.

7. The hydrogen sulfide removal apparatus according to claim 6, characterized in that: A bypass pipeline is provided on one side of the main pipeline. The bypass pipeline is connected to both the main pipeline and the air inlet. Control valves are provided on both the main pipeline and the bypass pipeline.

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