A sealing tail gas dedusting device for a sulfur melting kettle

Abstract

The utility model relates to tail gas dust removal technical field discloses a kind of sealing tail gas dust removal devices of sulfur melting kettle, including scrubber and dust removal box, the left lower half segment of scrubber is connected with sulfur melting kettle connecting pipe, two bearing plates are connected and arranged in the inside of scrubber, and the surface of bearing plate is provided with multiple through holes, scrubbing liquid tank is connected and arranged at the top of scrubber, transparent scale plate is connected and arranged at the front of scrubbing liquid tank, filling pipe is connected and arranged at the top of scrubbing liquid tank one side, booster pump is connected and arranged at the top of scrubbing liquid tank one side of scrubbing liquid tank, the utility model is combined structure by being arranged scrubber and dust removal box, the multistage purification function of tail gas treatment is realized;Through the bearing plate and thurber ring, bower ring filler layer of partial layer arrangement in scrubber, effectively prolong the contact time of tail gas and scrubbing liquid, cooperate the fine liquid drop formed by atomizing nozzle, can efficiently capture sulfide and other particulate pollutants.

Description

Technical Field

[0001] This utility model relates to the field of exhaust gas dust removal technology, specifically a dust removal device for sealed exhaust gas from a sulfur melting kettle. Background Technology

[0002] The sulfur melting kettle is a core piece of equipment in chemical plants for recovering sulfur from sulfur foam generated during wet desulfurization of sulfur-containing gases. Its working principle involves indirectly heating the sulfur foam through a steam jacket, causing the foam to break down into tiny particles of elemental sulfur that rapidly aggregate and grow larger, eventually settling naturally under gravity.

[0003] During sulfur recovery, the exhaust gas from the sulfur melting kettle contains a certain amount of sulfur particles and other impurities. Direct emission of these gases not only pollutes the environment but also wastes sulfur resources. Most existing sulfur melting kettle exhaust gas treatment devices are complex in structure, have poor treatment effects, and high operating costs. Therefore, a sealed exhaust gas dust removal device for sulfur melting kettles is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a dust removal device for the sealed tail gas of a sulfur melting kettle, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a washing tower and a dust collection box. A sulfur melting kettle connecting pipe is connected to the lower left half of the washing tower. Two support plates are connected inside the washing tower, and multiple through holes are opened on the surface of the support plates. A washing liquid tank is connected to the top of the washing tower. A transparent scale plate is connected to the front of the washing liquid tank. A filling pipe is connected to one side of the top of the washing liquid tank. A booster pump is connected to the top of the washing tower on one side of the washing liquid tank. An extraction pipe is connected to the extraction end of the booster pump, and the other end of the extraction pipe extends to the bottom of the washing liquid tank. A connector is connected to the upper half of one side of the washing tower. A diversion pipe is connected to the inner side of the connector, and the output end of the booster pump is connected to the diversion pipe. Multiple washing liquid conveying pipes are connected to the surface of the diversion pipe, and all of the multiple washing liquid conveying pipes extend into the washing tower. Multiple atomizing nozzles are connected to the bottom of the surface of the washing liquid conveying pipes. A drain pipe is connected to the bottom of the washing tower.

[0006] Preferably, a one-way valve is connected to the surface of the sulfur melting kettle connecting pipe, and multiple Raschig rings and Pall rings are respectively placed on the top surfaces of the two bearing plates.

[0007] Preferably, a sealing pipe is connected to the bottom of the dust collector, and an exhaust gas conveying pipe is connected to the upper half of the right side of the washing tower. The exhaust gas conveying pipe is connected to the sealing pipe, and a stabilizing component is connected to the surface of the exhaust gas conveying pipe. The top of the stabilizing component is connected to the bottom of the dust collector.

[0008] Preferably, a sealing plate is slidably disposed inside the dust collector, and multiple ceramic membranes are connected inside the sealing plate, with the upper and lower ends of the ceramic membranes penetrating the upper and lower sides of the sealing plate respectively. A handle is connected to the side of the sealing plate located outside the dust collector.

[0009] Preferably, a filter box is connected to the top of the dust collector box, and the interior of the dust collector box is connected to the interior of the filter box. Two activated carbon plates are connected to the interior of the filter box, and the two activated carbon plates are arranged vertically. A negative pressure fan is connected to the interior of the filter box, and the negative pressure fan is located above the activated carbon plates and is connected to the outside.

[0010] Preferably, a flange is connected to one end of the sulfur melting kettle connecting pipe, the filling pipe, and the drain pipe.

[0011] Preferably, the bottom of both the washing tower and the dust collector is provided with four support legs, and a reinforcing rod is provided between the four support legs.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting up a combined structure of a scrubbing tower and a dust collection box, a multi-stage purification function for exhaust gas treatment is achieved; through the layered arrangement of the support plate and Raschig ring and Pall ring packing layers inside the scrubbing tower, the contact time between the exhaust gas and the scrubbing liquid is effectively extended, and the fine droplets formed by the atomizing nozzle can efficiently capture particulate pollutants such as sulfides; the device improves dust removal efficiency through modular design and has low operating noise, making it particularly suitable for exhaust gas treatment in sulfur melting processes in industries such as chemical and metallurgical. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the left-side structure of a dust removal device for sealed tail gas from a sulfur melting kettle. Figure 2 This is a schematic diagram of the right-side structure of a dust removal device for sealed tail gas from a sulfur melting kettle. Figure 3 A schematic diagram of the front section structure of a dust removal device for sealed tail gas of a sulfur melting kettle; Figure 4 This is a schematic diagram of the structure of a sealing box plate of a sulfur melting kettle tail gas dust removal device.

[0014] In the diagram: 1. Scrubber; 2. Dust collector; 201. Sealing pipe; 3. Sulfur melting kettle connecting pipe; 4. Support plate; 5. Scrubber liquid tank; 6. Filling pipe; 7. Booster pump; 8. Extraction pipe; 9. Connecting component; 10. Diverter pipe; 11. Scrubber liquid delivery pipe; 12. Atomizing nozzle; 13. Drain pipe; 14. One-way valve; 15. Raschig ring; 16. Pall ring; 17. Transparent scale plate; 18. Exhaust gas delivery pipe; 181. Stabilizer; 19. Sealing box plate; 20. Ceramic membrane; 21. Handle; 22. Filter box; 23. Activated carbon plate; 24. Negative pressure fan; 25. Support leg; 26. Reinforcing rod. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1-4 This utility model provides a technical solution, including a washing tower 1 and a dust collection box 2. A sulfur melting kettle connecting pipe 3 is connected to the lower left half of the washing tower 1. Two support plates 4 are connected inside the washing tower 1, and multiple through holes are opened on the surface of the support plates 4. A washing liquid tank 5 is connected to the top of the washing tower 1. A transparent scale plate 17 is connected to the front of the washing liquid tank 5. A filling pipe 6 is connected to one side of the top of the washing liquid tank 5. A booster pump 7 is connected to the top of the washing tower 1 on one side of the washing liquid tank 5. An extraction pipe 8 is connected to the extraction end of the booster pump 7. The other end of the pipe 8 extends to the bottom of the washing liquid tank 5. A connector 9 is connected to the upper half of the washing tower 1. A diversion pipe 10 is connected to the inside of the connector 9. The output end of the booster pump 7 is connected to the diversion pipe 10. Multiple washing liquid conveying pipes 11 are connected to the surface of the diversion pipe 10. All multiple washing liquid conveying pipes 11 extend into the washing tower 1. Multiple atomizing nozzles 12 are connected to the bottom of the surface of the washing liquid conveying pipe 11. A drain pipe 13 is connected to the bottom of the washing tower 1. An electric butterfly valve is installed on the surface of the drain pipe 13.

[0017] A one-way valve 14 is connected to the surface of the sulfur melting reactor connecting pipe 3. Multiple Raschig rings 15 and Pall rings 16 are placed on the top surfaces of the two support plates 4. The function of the one-way valve 14 is to effectively prevent liquid in the scrubbing tower 1 from flowing back into the sulfur melting reactor, ensuring the stable operation of the entire system. The Raschig rings 15 and Pall rings 16, as packing material, placed on the support plates 4, increase the gas-liquid contact area, improve the scrubbing effect of the scrubbing tower 1 on the exhaust gas, and allow impurities and harmful substances in the exhaust gas to be better absorbed and removed by the scrubbing liquid.

[0018] A sealing pipe 201 is connected to the bottom of the dust collector 2. A tail gas conveying pipe 18 is connected to the upper half of the right side of the scrubbing tower 1, and the tail gas conveying pipe 18 is connected to the sealing pipe 201. A stabilizing component 181 is connected to the surface of the tail gas conveying pipe 18, and the top of the stabilizing component 181 is connected to the bottom of the dust collector 2. The function of the stabilizing component 181 is to enhance the connection stability between the tail gas conveying pipe 18 and the dust collector 2, and to prevent the connection from loosening or being damaged due to vibration or airflow impact during the tail gas conveying process, so as to ensure that the tail gas can be smoothly conveyed from the scrubbing tower 1 to the dust collector 2 for further treatment.

[0019] A sealing plate 19 is slidably installed inside the dust collector 2. Multiple ceramic membranes 20 are connected inside the sealing plate 19, with each ceramic membrane 20 penetrating the upper and lower sides of the sealing plate 19, respectively. A handle 21 is connected to the side of the sealing plate 19 outside the dust collector 2. The handle 21 allows the sealing plate 19 to slide within the dust collector 2, facilitating the installation, removal, and replacement of the ceramic membranes 20. The ceramic membranes 20 have high-efficiency filtration performance, further intercepting and separating fine particles and impurities in the exhaust gas, improving the exhaust gas purification effect. The handle 21 allows operators to move the sealing plate 19 more easily, facilitating daily maintenance and repair.

[0020] A filter box 22 is connected to the top of the dust collector 2, and the interior of the dust collector 2 is connected to the interior of the filter box 22. Two activated carbon plates 23 are connected inside the filter box 22, arranged vertically. A negative pressure fan 24 is connected inside the filter box 22, positioned above the activated carbon plates 23 and connected to the outside. The function of the negative pressure fan 24 is to create a negative pressure environment within the filter box 22 when it is operating, causing the exhaust gas inside the dust collector 2 to flow upwards and pass through the two activated carbon plates 23. The activated carbon plates 23 have a strong adsorption capacity, effectively adsorbing odors, harmful gases, and some residual fine particles in the exhaust gas, further purifying and treating the exhaust gas, ensuring that the exhaust gas emitted to the outside meets stricter environmental standards and reducing environmental pollution. Furthermore, the vertical arrangement of the two activated carbon plates 23 increases the contact time and area between the exhaust gas and the activated carbon, improving the adsorption effect and ensuring that the exhaust gas is fully purified.

[0021] The sulfur melting reactor connecting pipe 3, the filling pipe 6, and the drain pipe 13 are all equipped with flanges at one end. The purpose of these flanges is to facilitate easier and faster connection of these pipes, enabling a secure connection with the corresponding equipment or pipelines and ensuring the sealing and stability of the entire unit. Disassembly or replacement of pipes is also convenient; simply loosening the bolts on the flanges allows for easy separation, greatly improving the efficiency of installation, maintenance, and repair. Simultaneously, the flange connection method can withstand certain pressure and torque, ensuring that there will be no loosening or leakage of pipe connections during unit operation, thus guaranteeing the normal operation of the unit and the effectiveness of exhaust gas treatment.

[0022] Both the washing tower 1 and the dust collector 2 are equipped with four support legs 25 at their bottom ends, and reinforcing rods 26 are connected between the four support legs 25. The function of these reinforcing rods 26 is to provide stable support for the washing tower 1 and the dust collector 2, ensuring the stability of the entire device during operation and reducing swaying or displacement caused by vibration or external forces, thus ensuring the normal operation of all components. The reinforcing rods 26 further enhance the structural strength and stability between the support legs 25, enabling them to better withstand the weight of the device and various forces generated during operation, preventing deformation or damage to the support legs 25, extending the service life of the device, and improving the safety of the device during operation, avoiding potential safety accidents caused by device instability.

[0023] Working principle: When the exhaust gas generated by the sulfur melting kettle enters the scrubbing tower 1 through the sulfur melting kettle connecting pipe 3, the booster pump 7 starts working, drawing scrubbing liquid from the scrubbing liquid tank 5 through the extraction pipe 8, and then transporting it to the distribution pipe 10. The distribution pipe 10 distributes the scrubbing liquid to each scrubbing liquid delivery pipe 11, and then sprays the scrubbing liquid in the form of mist into the scrubbing tower 1 through the atomizing nozzle 12. During the ascent, the exhaust gas comes into full contact with the atomized scrubbing liquid, and the impurities and harmful substances in the exhaust gas are absorbed and removed by the scrubbing liquid. The washed liquid is discharged through the drain pipe 13. The exhaust gas, after preliminary treatment in the scrubbing tower 1, enters the dust collector 2 through the exhaust gas delivery pipe 18. In the dust collector 2, the exhaust gas passes through the ceramic membrane 20 on the sealing plate 19, and the ceramic membrane 20 further intercepts and separates the tiny particles and impurities in the exhaust gas. Afterwards, the negative pressure fan 24 operates in the filter box 22 to create negative pressure, causing the exhaust gas in the dust collector 2 to flow upward and pass through two activated carbon plates 23 that are distributed vertically. The activated carbon plates 23 adsorb odors, harmful gases and some residual small particles in the exhaust gas, so that the exhaust gas is further purified and finally discharged to the outside in compliance with standards.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dust removal device for sealed tail gas from a sulfur melting furnace, comprising a scrubbing tower (1) and a dust collection box (2), characterized in that: The lower left half of the washing tower (1) is connected to a sulfur melting kettle connecting pipe (3). Two support plates (4) are connected inside the washing tower (1), and multiple through holes are opened on the surface of the support plates (4). A washing liquid tank (5) is connected to the top of the washing tower (1). A transparent scale plate (17) is connected to the front of the washing liquid tank (5). A filling pipe (6) is connected to one side of the top of the washing liquid tank (5). A booster pump (7) is connected to the top of the washing tower (1) on one side of the washing liquid tank (5). A extraction pipe (8) is connected to the extraction end of the booster pump (7). 8) The other end extends to the bottom of the washing liquid tank (5). A connector (9) is connected to the upper half of the washing tower (1). A diversion pipe (10) is connected to the inside of the connector (9). The output end of the booster pump (7) is connected to the diversion pipe (10). Multiple washing liquid conveying pipes (11) are connected to the surface of the diversion pipe (10). Multiple washing liquid conveying pipes (11) extend into the washing tower (1). Multiple atomizing nozzles (12) are connected to the bottom of the surface of the washing liquid conveying pipes (11). A drain pipe (13) is connected to the bottom of the washing tower (1).

2. The dust removal device for sealed tail gas of sulfur melting kettle according to claim 1, characterized in that: A one-way valve (14) is connected to the surface of the sulfur melting kettle connecting pipe (3), and multiple Raschig rings (15) and Pall rings (16) are respectively placed on the top surfaces of the two bearing plates (4).

3. The dust removal device for sealed tail gas of sulfur melting kettle according to claim 1, characterized in that: The bottom of the dust collector (2) is connected to a sealing pipe (201). The upper half of the right side of the washing tower (1) is connected to a tail gas conveying pipe (18), and the tail gas conveying pipe (18) is connected to the sealing pipe (201). A stabilizing component (181) is connected to the surface of the tail gas conveying pipe (18), and the top of the stabilizing component (181) is connected to the bottom of the dust collector (2).

4. The dust removal device for sealed tail gas of sulfur melting kettle according to claim 1, characterized in that: The dust collector (2) has a sliding sealing plate (19) inside. Multiple ceramic membranes (20) are connected inside the sealing plate (19), and the upper and lower ends of the ceramic membranes (20) pass through the upper and lower sides of the sealing plate (19) respectively. A handle (21) is connected to the side of the sealing plate (19) outside the dust collector (2).

5. The dust removal device for sealed tail gas of sulfur melting kettle according to claim 1, characterized in that: The dust collector (2) is connected to a filter box (22) at the top, and the interior of the dust collector (2) is connected to the interior of the filter box (22). The filter box (22) is connected to two activated carbon plates (23) and the two activated carbon plates (23) are arranged vertically. The filter box (22) is connected to a negative pressure fan (24) and the negative pressure fan (24) is located above the activated carbon plates (23) and is connected to the outside.

6. The dust removal device for sealed tail gas of sulfur melting kettle according to claim 1, characterized in that: A flange is connected to one end of the sulfur melting kettle connecting pipe (3), the filling pipe (6), and the drain pipe (13).

7. The dust removal device for sealed tail gas of sulfur melting kettle according to claim 1, characterized in that: The bottom of the washing tower (1) and the dust removal box (2) are each connected to four support legs (25), and a reinforcing rod (26) is connected between the four support legs (25).

Images