Dust and hydrogen sulfide purification system

Abstract

This disclosure provides a dust and hydrogen sulfide purification system, relating to the field of air purification technology. The dust and hydrogen sulfide purification system includes a main fan, a dust removal device, a first purification device, a second purification device, and a separation device, connected sequentially via pipelines. The main fan transports polluted gas to the dust removal device. The dust removal device includes a dust collection box and a filter screen disposed within the dust collection box. The filter screen has a curved cross-sectional trajectory and can filter dust from the polluted gas. The first purification device includes a first tank, a first spray pump, and multiple first nozzles. The multiple first nozzles are disposed within the first tank and connected to the first spray pump via pipelines. The first spray pump is used to deliver alkaline solution to the first nozzles. The second purification device includes a second tank, a second spray pump, and multiple second nozzles. The multiple second nozzles are disposed within the second tank and connected to the second spray pump via pipelines. The second spray pump is used to deliver spray water to the second nozzles. This system is environmentally friendly.

Description

Technical Field

[0001] This disclosure relates to the field of air purification technology, and more specifically, to a dust and hydrogen sulfide purification system. Background Technology

[0002] In manufacturing operations, plant areas (such as oil refineries, coal-to-oil plants, and chemical plants) typically generate polluting gases. These gases contain particulate matter (dust) and harmful gases (mainly hydrogen sulfide), requiring treatment before release to protect the environment.

[0003] In related technologies, bag filters and activated carbon adsorption are commonly used to treat polluting gases. However, these technologies are not very effective in treating polluting gases and are not conducive to environmental protection.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0005] This disclosure provides a dust and hydrogen sulfide purification system that is beneficial to environmental protection.

[0006] A dust and hydrogen sulfide purification system includes a main fan, a dust removal device, a first purification device, a second purification device, and a separation device connected in sequence through pipelines.

[0007] The main fan is capable of transporting polluted gas to the dust removal device;

[0008] The dust removal device includes a dust removal box and a filter screen disposed inside the dust removal box. The cross-sectional trajectory of the filter screen is a curve, and the filter screen can filter dust in polluted gas.

[0009] The first purification device includes a first tank, a first spray pump, and a plurality of first nozzles. The plurality of first nozzles are disposed in the first tank and connected to the first spray pump through pipelines. The first spray pump is used to deliver alkaline solution to the first nozzles.

[0010] The second purification device includes a second tank, a second spray pump, and a plurality of second nozzles. The plurality of second nozzles are disposed in the second tank and connected to the second spray pump through pipelines. The second spray pump is used to deliver spray water to the second nozzles.

[0011] The separation device is used to perform gas-liquid separation on the gas from the second tank.

[0012] In one embodiment of this disclosure, the first purification device further includes an alkali tank, the alkali tank having a first chamber and a second chamber in communication, the bottom of the first tank having a first outlet, the second chamber being connected to the first outlet via a pipeline, and the first chamber being connected to the first spray pump via a pipeline.

[0013] In one embodiment of this disclosure, the second purification device further includes a water storage tank, the bottom of the second tank has a second liquid outlet, the second liquid outlet is connected to the water storage tank through a pipeline, the water storage tank is connected to the second chamber through a second spray pump, and the water storage tank and the second nozzle are connected through the second spray pump.

[0014] In one embodiment of this disclosure, the dust and hydrogen sulfide purification system further includes an oxidation device;

[0015] The oxidation device includes an oxidation tank and an oxidation pump. The oxidation tank contains an oxidant. The oxidation tank and the first chamber are connected by the oxidation pump, which is used to transport the alkaline solution from the first chamber to the oxidation tank.

[0016] In one embodiment of this disclosure, the dust and hydrogen sulfide purification system further includes a sedimentation device;

[0017] The precipitation device includes a precipitation tank and a precipitation pump. The precipitation tank contains a precipitant. The precipitation tank and the oxidation tank are connected by the precipitation pump, which is used to transport the liquid in the oxidation tank to the precipitation tank.

[0018] In one embodiment of this disclosure, the dust and hydrogen sulfide purification system further includes a sludge removal device;

[0019] The desliming device includes a desliming unit and a desliming pump. The desliming unit and the sedimentation tank are connected by the desliming pump. The desliming pump is used to transport the solid-liquid mixture in the sedimentation tank to the desliming unit, and the desliming unit is capable of separating the solid-liquid mixture.

[0020] In one embodiment of this disclosure, the desliming device has a third liquid outlet, which is connected to the first chamber via a pipeline, and the third liquid outlet is used to discharge the liquid separated by the desliming device.

[0021] In one embodiment of this disclosure, the dust removal device further includes a flushing nozzle and a clean water tank. The flushing nozzle is disposed inside the dust removal tank and is arranged opposite to the filter screen. The flushing nozzle and the clean water tank are connected through a dust removal pump.

[0022] In one embodiment of this disclosure, the dust removal device further includes a wastewater tank, which is connected to the dust removal tank via a pipeline, and the wastewater tank is connected to the sludge remover via the dust removal pump.

[0023] In one embodiment of this disclosure, the dust removal device further includes a first valve, a second valve, a third valve, and a fourth valve;

[0024] The first valve is located on the pipeline connecting the sewage tank and the dust removal pump;

[0025] The second valve is located on the pipeline connecting the dust removal pump and the sludge remover;

[0026] The third valve is located on the pipeline connecting the clean water tank and the dust removal pump;

[0027] The fourth valve is located on the pipeline connecting the flushing nozzle and the dust removal pump.

[0028] In the embodiments of this disclosure, the dust in the polluted gas is first filtered, and the hydrogen sulfide is treated in two stages by alkaline solution and spray water. Finally, the clean air is discharged after gas-liquid separation by a separation device, which improves the purification effect of polluted air and is beneficial to environmental protection and human health.

[0029] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0030] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0031] Figure 1 This is a schematic diagram of the overall dust and hydrogen sulfide purification system in one embodiment of the present disclosure.

[0032] Figure 2 This is a partial schematic diagram of a dust and hydrogen sulfide purification system in one embodiment of the present disclosure, intended to illustrate a dust removal device.

[0033] Figure 3 This is a partial schematic diagram of a dust and hydrogen sulfide purification system in one embodiment of the present disclosure, intended to illustrate an oxidation device, a sedimentation device, and a sludge removal device.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Main fan; 2. Dust removal device; 21. Dust collection box; 22. Filter screen; 23. Flushing nozzle; 24. Clean water tank; 25. Dust removal pump; 26. Wastewater tank; 3. First purification device; 31. First tank; 32. First spray pump; 33. First nozzle; 34. Alkali tank; 35. First feed pump; 4. Second purification device; 41. Second tank; 42. Second spray pump; 43. Second nozzle; 44. Water storage tank; 5. Separation device; 6. Oxidation device; 61. Oxidation box; 62. Oxidation pump; 63. Second feed pump; 7. Sedimentation device; 71. Sedimentation box; 72. Sedimentation pump; 73. Third feed pump; 8. Desludge pump; 9. Desludge remover. Detailed Implementation

[0036] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore detailed descriptions of them will be omitted. Furthermore, the drawings are merely illustrative of this disclosure and are not necessarily drawn to scale.

[0037] Although relative terms such as "up" and "down" are used in this specification to describe the relative relationship of one component of an icon to another, these terms are used only for convenience, such as according to the orientation of the examples shown in the accompanying drawings. It is understood that if the device of the icon is flipped upside down, the component described as "up" will become the component described as "down." When a structure is "up" of another structure, it may mean that the structure is integrally formed on the other structure, or that the structure is "directly" mounted on the other structure, or that the structure is "indirectly" mounted on the other structure through another structure.

[0038] The terms “a,” “one,” “the,” “the,” and “at least one” are used to indicate the presence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended inclusion and to mean that there may be other elements / components / etc. in addition to the listed elements / components / etc.; the terms “first,” “second,” and “third,” etc., are used only as markers and are not a limitation on the number of objects.

[0039] This disclosure provides a dust and hydrogen sulfide purification system. See also... Figure 1 , Figure 2The dust and hydrogen sulfide purification system includes a main fan 1, a dust removal device 2, a first purification device 3, a second purification device 4, and a separation device 5, connected sequentially by pipelines. The main fan 1 transports polluted gas to the dust removal device 2. The dust removal device 2 includes a dust collection box 21 and a filter screen 22 disposed within the dust collection box 21. The filter screen 22 has a curved cross-sectional trajectory and is capable of filtering dust from the polluted gas. The first purification device 3 includes a first tank 31, a first spray pump 32, and multiple first nozzles 33. The multiple first nozzles 33 are disposed within the first tank 31 and connected to the first spray pump 32 via pipelines. The first spray pump 32 is used to transport alkaline solution to the first nozzles 33. The second purification device 4 includes a second tank 41, a second spray pump 42, and a plurality of second nozzles 43. The plurality of second nozzles 43 are disposed inside the second tank 41 and connected to the second spray pump 42 via pipelines. The second spray pump 42 is used to deliver spray water to the second nozzles 43. The separation device 5 is used to perform gas-liquid separation on the gas from the second tank 41.

[0040] In this way, the main fan 1 can transport polluted gas to the dust collection box 21. After the dust in the polluted gas is filtered by the filter screen 22, hydrogen sulfide enters the first tank 31. The first spray pump 32 delivers alkaline solution to the first spray nozzle 33 to spray the hydrogen sulfide, so that the hydrogen sulfide in the gas dissolves in the alkaline solution and neutralizes it. Then the gas enters the second tank 41. The second spray pump 42 delivers spray water to the second spray nozzle 43 to treat the residual hydrogen sulfide in the gas, so that the residual hydrogen sulfide dissolves in the water. Afterwards, the gas is discharged after gas-liquid separation by the separation device 5. In the embodiment of this disclosure, the dust in the polluted gas is first filtered, and the hydrogen sulfide is treated in two stages by alkaline solution and spray water. Finally, the clean air is discharged after gas-liquid separation by the separation device 5, which improves the purification effect of polluted air and is beneficial to environmental protection and human health.

[0041] In one embodiment of this disclosure, the air inlet of the main fan 1 can be connected to a target space through a pipeline. The target space is the space where polluted gas is generated, such as a factory or workshop.

[0042] In one embodiment of this disclosure, the connection method between pipes and between pipes and devices can be flange connection, grooved connection, threaded connection, etc., and is not limited thereto.

[0043] In one embodiment of this disclosure, a gas guide pipe is provided inside the first tank 31. The gas guide pipe extends along the height direction of the first tank 31 and is coaxially arranged with the first tank 31. The gas guide pipe extends to a position below the first nozzle 33. The air outlet of the dust collector 21 is connected to the gas guide pipe so that gas can be introduced into the first tank 31 through the gas guide pipe, facilitating the spraying of gas by the first nozzle 33. Further, a guide plate is also provided inside the first tank 31. The guide plate is perpendicular to the gas guide pipe and is located above the first nozzle 33. The guide plate has multiple guide holes for gas passage. The multiple guide holes extend along an S-shaped curve trajectory. The guide plate and the top of the first tank 31 form an air outlet chamber, which is connected to the second tank 41 through a pipeline. When the gas-liquid mixture passes through the guide hole of the guide plate, the liquid is blocked by the guide hole and flows back to the bottom of the first tank 31, while the gas can enter the gas outlet chamber and enter the second tank 41 through the pipeline, which reduces the amount of alkaline solution entering the second tank 41 and facilitates the purification effect of the gas.

[0044] In one embodiment of this disclosure, see Figure 1 , Figure 3 The first purification device 3 also includes an alkali tank 34, which has a first chamber and a second chamber that are connected. The first chamber and the second chamber can be separated by a partition with multiple through holes. The first tank 31 has a first outlet at its bottom. The second chamber is connected to the first outlet by a pipeline, and the first chamber is connected to the first spray pump 32 by a pipeline. Thus, the mixture of alkali and hydrogen sulfide in the first tank 31 can flow into the second chamber through the first outlet and then into the first chamber. Simultaneously, the first spray pump 32 transports the mixed solution in the first chamber to the first spray head 33 for spraying, achieving the recycling of the alkali and reducing waste. It should be noted that because the alkali concentration in the alkali tank 34 is high, the solution remains alkaline with a relatively high pH after neutralization of hydrogen sulfide. This solution can be recycled by the first spray pump 32, achieving a high neutralization effect on hydrogen sulfide in the gas.

[0045] In one embodiment of this disclosure, see Figure 1 , Figure 3 The first purification device 3 also includes a first feeding pump 35. One end of the first feeding pump 35 can be connected to the second chamber via a pipeline, and the other end can be connected to the alkali tank via a pipeline. The alkali tank contains a high concentration of alkali solution. Thus, when the concentration of alkali solution in the alkali tank 34 is low, the first feeding pump 35 can transport the alkali solution from the alkali tank to the alkali tank 34, improving the reliability of the dust and hydrogen sulfide purification system.

[0046] In one embodiment of this disclosure, the alkali tank 34 is equipped with a first stirrer located in the second chamber. When the alkali concentration in the alkali tank 34 is insufficient and alkali is added via the first feed pump 35, the first stirrer can stir the newly added alkali in the second chamber to ensure thorough mixing. Furthermore, a first pH meter can be installed in the first chamber to detect the pH of the alkali in the alkali tank 34.

[0047] In one embodiment of this disclosure, see Figure 1 The second purification device 4 also includes a water storage tank 44. The bottom of the second tank body 41 has a second outlet, which is connected to the water storage tank 44 via a pipeline. The water storage tank 44 is connected to the second chamber via a second spray pump 42, and the water storage tank 44 and the second spray head 43 are connected via the second spray pump 42. On one hand, water from the bottom of the second tank body 41 can enter the water storage tank 44 through the second outlet, and the second spray pump 42 can then pump the water from the water storage tank 44 back to the second spray head 43 for spraying, forming a water cycle and reducing water waste. On the other hand, when the water in the water storage tank 44 contains excessive hydrogen sulfide, the second spray pump 42 can pump the water from the water storage tank 44 to the second chamber, facilitating the neutralization of the hydrogen sulfide in the water in the water storage tank 44 with an alkaline solution.

[0048] In one embodiment of this disclosure, the separation device 5 can be a gas-liquid separation device with separating blades, which can separate the gas and liquid by rotating the separating blades at high speed. The separation device 5 has a drain hole and an exhaust hole. The separated liquid is discharged from the drain hole, and the separated gas is discharged from the exhaust hole. In this way, the separation device 5 can remove the moisture contained in the gas processed by the second tank 41, facilitating the discharge of clean gas.

[0049] In one embodiment of this disclosure, the drain hole is connected to the water storage tank 44 via a pipeline to reduce direct water discharge and improve water resource utilization.

[0050] In one embodiment of this disclosure, see Figure 1 , Figure 3 The dust and hydrogen sulfide purification system also includes an oxidation device 6. The oxidation device 6 includes an oxidation tank 61 and an oxidation pump 62. The oxidation tank 61 contains an oxidant. The oxidation tank 61 and the first chamber are connected by the oxidation pump 62, which is used to transport the alkaline solution from the first chamber to the oxidation tank 61. Thus, the oxidation pump 62 can transport the mixed solution from the alkaline tank 34 to the oxidation tank 61, where the sulfur in the mixed solution is oxidized by the oxidant.

[0051] In one embodiment of this disclosure, see Figure 1 , Figure 3The oxidation device 6 also includes a second feed pump 63. One end of the second feed pump 63 can be connected to the oxidation tank 61 via a pipeline, and the other end can be connected to the oxidant tank via a pipeline. The oxidant tank contains a high concentration of oxidant. Thus, when the oxidant concentration in the oxidation tank 61 is low, the second feed pump 63 can transport the oxidant from the oxidant tank to the oxidation tank 61, improving the reliability of the dust and hydrogen sulfide purification system.

[0052] In one embodiment of this disclosure, the oxidation tank 61 is equipped with a second stirrer. When the oxidant concentration in the oxidation tank 61 is insufficient and oxidant is added via the second feed pump 63, the second stirrer can stir the newly added oxidant in the oxidation tank 61 to ensure thorough mixing of the solution. Furthermore, the oxidation tank 61 may be equipped with a second pH meter to detect the pH of the solution in the oxidation tank 61.

[0053] In one embodiment of this disclosure, see Figure 1 , Figure 3 The dust and hydrogen sulfide purification system also includes a precipitation device 7. The precipitation device 7 includes a precipitation tank 71 and a precipitation pump 72. The precipitation tank 71 contains a precipitant. The precipitation tank 71 and the oxidation tank 61 are connected by the precipitation pump 72, which transports the liquid from the oxidation tank 61 to the precipitation tank 71. Thus, the mixed solution in the oxidation tank 61 is transported to the precipitation tank 71 by the precipitation pump 72, and the sulfur in the mixed solution is precipitated in a fixed form by the precipitant, facilitating the treatment of hydrogen sulfide.

[0054] In one embodiment of this disclosure, see Figure 1 , Figure 3 The sedimentation device 7 also includes a third feed pump 73. One end of the third feed pump 73 can be connected to the sedimentation tank 71 via a pipeline, and the other end can be connected to the precipitant tank via a pipeline. The precipitant tank contains a high concentration of precipitant. Thus, when the concentration of precipitant in the sedimentation tank 71 is low, the third feed pump 73 can transport the precipitant from the precipitant tank to the sedimentation tank 71, improving the reliability of the dust and hydrogen sulfide purification system.

[0055] In one embodiment of this disclosure, the sedimentation tank 71 is equipped with a third stirrer. When the concentration of precipitant in the sedimentation tank 71 is insufficient and precipitant is added via a third feed pump 73, the third stirrer can stir the newly added precipitant in the sedimentation tank 71 to ensure thorough mixing of the solution. Furthermore, the sedimentation tank 71 may be equipped with a third pH meter to detect the pH of the solution in the sedimentation tank 71.

[0056] In one embodiment of this disclosure, the first stirrer, the second stirrer, and the third stirrer have the same structure and each includes a stirring motor, a stirring shaft, and stirring blades. The stirring motor is coaxially fixed to the stirring shaft, and the stirring blades are fixedly connected to the stirring shaft to achieve the stirring function.

[0057] In one embodiment of this disclosure, see Figure 1 , Figure 3 The dust and hydrogen sulfide purification system also includes a sludge removal device. This device comprises a sludge remover 9 and a sludge pump 8. The sludge remover 9 and the settling tank 71 are connected via the sludge pump 8. The sludge pump 8 transports the solid-liquid mixture from the settling tank 71 to the sludge remover 9, where it separates the solid and liquid mixture. Thus, the sludge pump 8 transports the solid-liquid mixture from the settling tank 71 to the sludge remover 9. After processing by the sludge remover 9, the solid and liquid are separated, thereby converting gaseous sulfur in the gas into solid sulfur, facilitating air purification.

[0058] In one embodiment of this disclosure, see Figure 1 , Figure 3 The desliming device 9 has a third liquid outlet, which is connected to the first chamber via a pipeline. The third liquid outlet is used to discharge the liquid separated by the desliming device 9. In this way, the liquid separated by the desliming device 9 is discharged back into the alkali tank 34, which helps to improve resource utilization and reduce waste.

[0059] In one embodiment of this disclosure, see Figure 1 , Figure 2 The dust removal device 2 also includes a flushing nozzle 23, a clean water tank 24, and a dust removal pump 25. The flushing nozzle 23 is located inside the dust collection box 21 and is positioned opposite the filter screen 22. The flushing nozzle 23 and the clean water tank 24 are connected via the dust removal pump 25. Thus, the dust removal pump 25 delivers water from the clean water tank 24 to the flushing nozzle 23, which sprays water onto the filter screen 22, preventing clogging, reducing the frequency of filter screen replacement, and improving system reliability.

[0060] In one embodiment of this disclosure, see Figure 1 , Figure 2 The dust removal device 2 also includes a wastewater tank 26, which is connected to the dust removal box 21 via a pipeline. The wastewater tank 26 is also connected to the sludge remover 9 via a dust removal pump 25. In this way, the wastewater in the dust removal box 21 can flow into the wastewater tank 26 through the pipeline and be pumped to the sludge remover 9 for treatment by the dust removal pump 25. The treated water can then flow into the alkali tank 34 for recycling, further reducing water waste.

[0061] In one embodiment of this disclosure, see Figure 1 , Figure 2The dust removal device 2 also includes a first valve, a second valve, a third valve, and a fourth valve. The first valve is located on the pipeline connecting the wastewater tank 26 and the dust removal pump 25; the second valve is located on the pipeline connecting the dust removal pump 25 and the sludge remover 9; the third valve is located on the pipeline connecting the clean water tank 24 and the dust removal pump 25; and the fourth valve is located on the pipeline connecting the flushing nozzle 23 and the dust removal pump 25. Thus, when the filter screen 22 needs to be flushed, the third and fourth valves are opened, and the first and second valves are closed. Water from the clean water tank 24 is pumped through the dust removal pump 25 to the flushing nozzle 23 to flush the filter screen 22. When wastewater needs to be treated, the first and second valves are opened, and the third and fourth valves are closed. Wastewater from the wastewater tank 26 is pumped through the dust removal pump 25 to the sludge remover 9 for decontamination treatment. By using four valves, the clean water tank 24 and the wastewater tank 26 can share a single dust removal pump 25, reducing the number of dust removal pumps 25 and lowering costs.

[0062] In one embodiment of this disclosure, each of the above-mentioned pipelines may be equipped with a control valve to facilitate the opening and closing of the pipeline.

[0063] The purification principle of hydrogen sulfide gas in this disclosure is explained below:

[0064] Taking sodium hydroxide solution as the alkali, hydrogen peroxide solution as the oxidant, and calcium hydroxide solution as the precipitant as an example, in the first tank 31, the alkali and hydrogen sulfide are neutralized to form sodium sulfide solution. In the oxidation tank 61, sodium sulfide is oxidized by hydrogen peroxide to form sodium sulfate. In the precipitation tank 71, sodium sulfate reacts with calcium hydroxide to form calcium sulfate and sodium hydroxide. Since calcium sulfate is a solid, it can be separated from sodium hydroxide solution by the desliming device 9 to purify hydrogen sulfide gas. Finally, the sodium hydroxide solution is returned to the alkali tank 34 for reuse, reducing waste.

[0065] It should be noted that the alkaline solution, oxidizing agent, and precipitating agent disclosed herein are not limited to the solutions in the examples above, but are applicable as long as they achieve the above functions.

[0066] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

Claims

1. A dust and hydrogen sulfide purification system, characterized in that, It includes a main fan, a dust removal device, a first purification device, a second purification device, and a separation device, which are connected in sequence through pipelines; The main fan is capable of transporting polluted gas to the dust removal device; The dust removal device includes a dust removal box and a filter screen disposed inside the dust removal box. The cross-sectional trajectory of the filter screen is a curve, and the filter screen can filter dust in polluted gas. The first purification device includes a first tank, a first spray pump, and a plurality of first nozzles. The plurality of first nozzles are disposed in the first tank and connected to the first spray pump through pipelines. The first spray pump is used to deliver alkaline solution to the first nozzles. The second purification device includes a second tank, a second spray pump, and a plurality of second nozzles. The plurality of second nozzles are disposed in the second tank and connected to the second spray pump through pipelines. The second spray pump is used to deliver spray water to the second nozzles. The separation device is used to perform gas-liquid separation on the gas from the second tank.

2. The dust and hydrogen sulfide purification system according to claim 1, characterized in that, The first purification device further includes an alkali tank, which has a first chamber and a second chamber that are connected to each other. The bottom of the first tank has a first outlet. The second chamber is connected to the first outlet through a pipeline. The first chamber is connected to the first spray pump through a pipeline.

3. The dust and hydrogen sulfide purification system according to claim 2, characterized in that, The second purification device also includes a water storage tank, the bottom of the second tank has a second liquid outlet, the second liquid outlet is connected to the water storage tank through a pipeline, the water storage tank is connected to the second chamber through the second spray pump, and the water storage tank and the second nozzle are connected through the second spray pump.

4. The dust and hydrogen sulfide purification system according to claim 2, characterized in that, The dust and hydrogen sulfide purification system also includes an oxidation device; The oxidation device includes an oxidation tank and an oxidation pump. The oxidation tank contains an oxidant. The oxidation tank and the first chamber are connected by the oxidation pump, which is used to transport the alkaline solution from the first chamber to the oxidation tank.

5. The dust and hydrogen sulfide purification system according to claim 4, characterized in that, The dust and hydrogen sulfide purification system also includes a sedimentation device; The precipitation device includes a precipitation tank and a precipitation pump. The precipitation tank contains a precipitant. The precipitation tank and the oxidation tank are connected by the precipitation pump, which is used to transport the liquid in the oxidation tank to the precipitation tank.

6. The dust and hydrogen sulfide purification system according to claim 5, characterized in that, The dust and hydrogen sulfide purification system also includes a sludge removal device; The desliming device includes a desliming unit and a desliming pump. The desliming unit and the sedimentation tank are connected by the desliming pump. The desliming pump is used to transport the solid-liquid mixture in the sedimentation tank to the desliming unit, and the desliming unit is capable of separating the solid-liquid mixture.

7. The dust and hydrogen sulfide purification system according to claim 6, characterized in that, The desliming device has a third liquid outlet, which is connected to the first chamber via a pipeline. The third liquid outlet is used to discharge the liquid separated by the desliming device.

8. The dust and hydrogen sulfide purification system according to claim 7, characterized in that, The dust removal device also includes a flushing nozzle and a clean water tank. The flushing nozzle is located inside the dust removal tank and is positioned opposite to the filter screen. The flushing nozzle and the clean water tank are connected via a dust removal pump.

9. The dust and hydrogen sulfide purification system according to claim 8, characterized in that, The dust removal device also includes a wastewater tank, which is connected to the dust removal tank via a pipeline, and the wastewater tank is connected to the sludge remover via the dust removal pump.

10. The dust and hydrogen sulfide purification system according to claim 9, characterized in that, The dust removal device also includes a first valve, a second valve, a third valve, and a fourth valve; The first valve is located on the pipeline connecting the sewage tank and the dust removal pump; The second valve is located on the pipeline connecting the dust removal pump and the sludge remover; The third valve is located on the pipeline connecting the clean water tank and the dust removal pump; The fourth valve is located on the pipeline connecting the flushing nozzle and the dust removal pump.

Images