Flushing device for solving ammonium sulfate crystal substance at joint of absorption tower and flue gas in sulfur recovery process

Abstract

The utility model discloses a flushing device for solving ammonium sulfate crystal substances at a joint of an absorption tower and flue gas in a sulfur recovery process, which relates to the technical field of sulfur recovery and comprises an absorption tower component, the absorption tower component comprises a flue, a flushing component is arranged in the flue, one side of the flue is provided with a flue gas joint, and the other side of the flue is provided with a water inlet. The flushing assembly comprises a communicating ring, the communicating ring is fixedly installed in the middle of the inner side of the flue, the communicating ring communicates with a plurality of spraying branch pipes, a plurality of spray head connectors are formed in one sides of the spraying branch pipes, the spray head connectors are arranged at equal intervals, and the spray head connectors face the inner side wall of the flue; a spiral spray head is fixedly mounted in the spray head connector; according to the utility model, the flue blockage caused by crystal deposition can be effectively avoided, the flue can be cooled, the gas phase distribution in the flue is more uniform, the absorption effect of the absorption tower assembly is improved, and the practical value is higher.

Description

Technical Field

[0001] This utility model relates to the field of sulfur recovery technology, specifically a flushing device for rinsing ammonium sulfate crystals at the interface between the absorption tower and flue gas in the sulfur recovery process. Background Technology

[0002] Sulfur recovery refers to a part of a process designed to remove and recover sulfides from industrial waste gases (such as those from oil refineries, natural gas processing facilities, or chemical plants). The Claus process is one of the most common sulfur recovery methods, primarily used to treat gases containing high concentrations of hydrogen sulfide. Through a series of reactions, hydrogen sulfide is partially oxidized to sulfur dioxide, which then reacts further with the remaining hydrogen sulfide to produce elemental sulfur and water. The final product is high-purity sulfur, which can be sold as a commodity.

[0003] Based on the above, the inventors have discovered the following problems: In the current sulfur recovery process, absorption towers are usually used to capture incompletely converted sulfur compounds or other pollutants. When treating waste gas containing ammonia, byproducts such as ammonium sulfate may be formed. If these byproducts crystallize and deposit inside the absorption tower or at the interface with the flue gas, they will hinder gas flow, reduce equipment efficiency, and may cause corrosion problems, making them inconvenient to use.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a flushing device for the ammonium sulfate crystals at the interface between the absorption tower and the flue gas in the sulfur recovery process, in order to achieve a more practical purpose. Utility Model Content

[0005] The purpose of this invention is to provide a flushing device for ammonium sulfate crystals at the interface between the absorber tower and the flue gas in the sulfur recovery process, so as to solve the problems mentioned in the background art.

[0006] A flushing device for addressing ammonium sulfate crystal formation at the interface between the absorber and flue gas in a sulfur recovery process includes an absorber assembly. The absorber assembly includes a flue, and a flushing component is installed inside the flue. A flue gas interface is located on one side of the flue. The flushing component includes a connecting ring, which is fixedly installed in the middle of the inner side of the flue. The connecting ring is connected to several spray branch pipes. Several nozzle interfaces are provided on one side of each spray branch pipe. The nozzle interfaces are arranged at equal intervals and face the inner wall of the flue. A spiral nozzle is fixedly installed inside each nozzle interface.

[0007] By adopting the above technical solution, a flue gas interface is provided on one side of the flue, which facilitates connection to external pipelines and allows flue gas to enter the absorption tower components for sulfur recovery. A connecting ring is fixedly installed in the middle of the inner side of the flue, facilitating the installation of spray branch pipes inside the flue for convenient spraying and preventing crystallization. The nozzle interfaces are arranged at equal intervals, facing the inner wall of the flue, ensuring uniform distribution and coverage by process water. A spiral nozzle is fixedly installed inside the nozzle interface, allowing the process water to be sprayed in fine droplets or a uniform fan-shaped spray pattern, ensuring even distribution throughout the target area. This provides thorough spraying of the inner side of the flue, preventing crystallization and blockage, and also cooling the flue, resulting in a more uniform gas phase distribution and improved absorption efficiency of the absorption tower components.

[0008] Furthermore, the spray branch pipes are arranged in a ring array, and the positions of the nozzle interfaces are staggered with those of the nozzle interfaces of adjacent spray branch pipes.

[0009] By adopting the above technical solution, the nozzle interface positions are staggered with the nozzle interface positions of adjacent spray branch pipes, which facilitates the even distribution of spiral nozzles inside the flue, so that the spraying of process water can evenly cover the inside of the flue.

[0010] Furthermore, one end of the connecting ring is connected to a transmission pipe, and one end of the transmission pipe passes through the bottom of the flue gas interface.

[0011] By adopting the above technical solution, one end of the transmission pipe passes through the bottom of the flue gas interface, which facilitates the extension of the transmission pipe to the outside of the absorption tower component, making it convenient to transmit process water.

[0012] Furthermore, a booster pump is provided at the bottom of the transmission pipe, and the output end of the booster pump is connected to the transmission pipe.

[0013] By adopting the above technical solution and setting up a booster pump, the process water can be pressurized, allowing it to enter the flue at a certain flow rate and pressure for rinsing.

[0014] Furthermore, the booster pump input end is equipped with a process water interface.

[0015] By adopting the above technical solution and setting the process water interface, it is easy to connect to external pipelines and provide process water source for the flushing of components. The process water is mainly warm water, steam and special chemical solvents, which can effectively remove crystals.

[0016] Furthermore, a reinforcing layer is fixedly installed on the inner wall of the flue, and the reinforcing layer is made of heat-resistant alloy steel.

[0017] By adopting the above technical solution and setting up the reinforcement layer, the flue can be strengthened, which helps to extend its service life.

[0018] Furthermore, the surface of the reinforcing layer is covered with a wear-resistant layer, the wear-resistant layer being made of silicon nitride ceramic.

[0019] By adopting the above technical solution and setting the wear-resistant layer, it is easy to prevent wear and tear, avoid the wear of particulate matter in the flue gas on the flue, and help extend the service life.

[0020] Furthermore, a liquid storage tank is fixedly installed at the bottom of the flue, and a circulation interface is provided on one side of the liquid storage tank.

[0021] By adopting the above technical solution, a circulation interface is provided on one side of the storage tank, which facilitates the collection and recovery of the flushing water of the spray flue and the absorbent liquid generated during the sulfur recovery process in the absorption section, thus facilitating subsequent treatment.

[0022] Furthermore, an absorption section is fixedly installed at the top of the flue, and an exhaust port is provided at the top of the absorption section.

[0023] By adopting the above technical solution, an exhaust port is provided at the top of the absorption section, which facilitates connection to an external pipeline. The absorption section absorbs sulfides in the flue gas, and the flue gas after absorption treatment is discharged from the exhaust port.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows: A flue gas interface is provided on one side of the flue, facilitating connection to external pipes and allowing flue gas to enter the absorption tower assembly for sulfur recovery. A connecting ring is fixedly installed in the middle of the inner side of the flue, facilitating the installation of spray branch pipes inside the flue for convenient spraying and preventing crystallization. The nozzle interfaces are arranged at equal intervals, facing the inner wall of the flue, ensuring even distribution within the flue and guaranteeing that the entire flue is sprayed with process water. A spiral nozzle is fixedly installed inside the nozzle interface, allowing the process water to be sprayed out in the form of fine droplets or a uniform fan-shaped spray, ensuring even distribution of the process water throughout the target area. This provides thorough spraying of the inner side of the flue, preventing crystallization and blockage, and also cooling the flue, resulting in a more uniform gas phase distribution and improving the absorption effect of the absorption tower assembly. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of a flushing device for ammonium sulfate crystals at the interface between the absorption tower and flue gas in a sulfur recovery process, according to the present invention.

[0026] Figure 2 This is a three-dimensional structural diagram of the flue of this utility model;

[0027] Figure 3 This is a three-dimensional structural diagram of the flushing assembly of this utility model;

[0028] Figure 4 Provided by this utility model Figure 3 Enlarged view of structure A in the middle.

[0029] In the diagram: 101, Absorption tower assembly; 10101, Flue; 10102, Flue gas interface; 10103, Liquid storage tank; 10104, Circulation interface; 10105, Absorption section; 10106, Exhaust interface; 10107, Reinforcement layer; 102, Flushing assembly; 10201, Booster pump; 10202, Transmission pipe; 10203, Process water interface; 10204, Connecting ring; 10205, Spray branch pipe; 10206, Sprayer interface; 10207, Spiral spray head. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions 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, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of this application, unless otherwise stated, "multiple" means two or more.

[0032] Example 1

[0033] Please see Figures 1-4This utility model provides a technical solution: a flushing device for resolving ammonium sulfate crystals at the interface between the absorber and flue gas in a sulfur recovery process, comprising an absorber assembly 101, the absorber assembly 101 including a flue 10101, a flushing assembly 102 inside the flue 10101, and a flue gas interface 10102 on one side of the flue 10101, which facilitates connection to an external pipeline and allows flue gas to enter the absorber assembly 101. The sulfur recovery and flushing assembly 102 includes a connecting ring 10204, which is fixedly installed in the middle of the inner side of the flue 10101. This fixed installation facilitates the installation of spray branch pipes 10205 inside the flue 10101, enabling convenient spraying of the flue 10101 and preventing crystal deposition. The connecting ring 10204 is connected to several spray branch pipes 10205, and several nozzles are provided on one side of each spray branch pipe 10205. The nozzle interfaces 10206 are arranged at equal intervals, facing the inner wall of the flue 10101. This arrangement ensures the nozzle interfaces 10206 are evenly distributed within the flue 10101, guaranteeing that the entire interior of the flue 10101 is sprayed with process water. A spiral nozzle 10207 is fixedly installed inside each nozzle interface 10206. The spiral nozzle 10207 is fixedly installed inside the 206, which allows the spiral nozzle 10207 to spray the process water in the form of fine droplets or uniform fan-shaped spray, ensuring the uniform distribution of the process water in the entire target area. This allows for sufficient spraying of the inside of the flue 10101, preventing crystal deposition that could cause blockage of the flue 10101. It also cools the flue 10101, making the gas phase distribution inside the flue 10101 more uniform and improving the absorption effect of the absorption tower component 101.

[0034] The spray branch pipes 10205 are arranged in a ring array. The positions of the nozzle interfaces 10206 and the nozzle interfaces 10206 of the adjacent spray branch pipes 10205 are staggered. The staggered positions of the nozzle interfaces 10206 and the nozzle interfaces 10206 of the adjacent spray branch pipes 10205 facilitate the even distribution of the spiral nozzles 10207 inside the flue 10101, so that the spraying of process water can evenly cover the inside of the flue 10101.

[0035] One end of the connecting ring 10204 is connected to the transmission pipe 10202. One end of the transmission pipe 10202 passes through the bottom of the flue gas interface 10102. By passing through the bottom of the flue gas interface 10102, the transmission pipe 10202 can extend to the outside of the absorption tower assembly 101, which facilitates the transmission of process water.

[0036] The bottom end of the transmission pipe 10202 is equipped with a booster pump 10201, and the output end of the booster pump 10201 is connected to the transmission pipe 10202. The booster pump 10201 facilitates the pressurization of the process water, so that the process water can enter the flue 10101 for rinsing at a certain flow rate and pressure.

[0037] The booster pump 10201 is equipped with a process water interface 10203 at its input end. The process water interface 10203 facilitates connection to external pipelines and provides process water for the operation of the flushing assembly 102. The process water is mainly warm water, steam and special chemical solvents, which effectively remove crystals.

[0038] The inner wall of the flue 10101 is fixedly equipped with a reinforcing layer 10107, which is made of heat-resistant alloy steel. The reinforcing layer 10107 facilitates the strengthening of the flue 10101 and helps to extend its service life.

[0039] The surface of the reinforcing layer 10107 is covered with a wear-resistant layer made of silicon nitride ceramic. The wear-resistant layer helps to prevent wear and avoids the wear of particulate matter in the flue gas on the flue 10101, thus extending its service life.

[0040] The bottom of the flue 10101 is fixedly equipped with a liquid storage tank 10103. A circulation interface 10104 is opened on one side of the liquid storage tank 10103. The circulation interface 10104 on one side of the liquid storage tank 10103 facilitates the collection and recovery of the flushing water of the spray flue 10101 and the absorbent liquid generated during the sulfur recovery process of the absorption section 10105, which is convenient for subsequent treatment.

[0041] The flue 10101 is fixedly installed with an absorption section 10105 at the top. The top of the absorption section 10105 is provided with an exhaust port 10106. The exhaust port 10106 at the top of the absorption section 10105 facilitates the connection of the exhaust port 10106 to an external pipeline. The absorption section 10105 absorbs sulfides in the flue gas, and the flue gas after absorption treatment is discharged from the exhaust port 10106.

[0042] Specifically, the working principle of this flushing device for removing ammonium sulfate crystals at the interface between the absorber and flue gas in the sulfur recovery process is as follows: During operation, a flue gas interface 10102 is provided on one side of the flue duct 10101, facilitating connection to external pipelines and allowing flue gas to flow into the absorber assembly 101 for sulfur recovery. A process water interface 10203 facilitates connection to external pipelines, providing process water for the flushing assembly 102. The process water mainly consists of warm water, steam, and a special chemical solvent, effectively removing crystals. A booster pump 10201 pressurizes the process water, allowing it to enter the flue duct 10101 at a certain flow rate and pressure. The process water is rinsed inside the 0101. One end of the transmission pipe 10202 passes through the bottom of the flue gas interface 10102, facilitating the extension of the transmission pipe 10202 to the outside of the absorption tower assembly 101 for convenient transmission. A connecting ring 10204 is fixedly installed in the middle of the inner side of the flue 10101, allowing the spray branch pipe 10205 to be fixedly installed inside the flue 10101 for convenient spraying inside the flue 10101, preventing crystal deposition. Spray nozzle interfaces 10206 are arranged at equal intervals, facing the inner wall of the flue 10101, ensuring even distribution of the spray nozzle interfaces inside the flue 10101 and guaranteeing the smooth operation of the flue 10101. The entire interior of flue 10101 is sprayed with process water. A spiral nozzle 10207 is fixedly installed inside the nozzle interface 10206, allowing the process water to be sprayed out in the form of fine droplets or a uniform fan-shaped spray. This ensures the uniform distribution of the process water throughout the target area, thus fully spraying the inside of flue 10101. This prevents crystallization and deposition that could clog flue 10101, and also cools the flue 10101, making the gas phase distribution inside more uniform and improving the absorption effect of the absorption tower component 101. The reinforcement layer 10107 facilitates the strengthening of flue 10101, which is beneficial... To extend service life, the wear-resistant layer helps prevent wear and tear, avoiding abrasion of the flue 10101 by particulate matter in the flue gas, thus extending its service life. The top of the absorption section 10105 is equipped with an exhaust port 10106, which facilitates connection to external pipelines. The absorption section 10105 absorbs sulfides in the flue gas, and the flue gas after absorption treatment is discharged from the exhaust port 10106. A circulation port 10104 is provided on one side of the liquid storage tank 10103 to facilitate the collection and recovery of the flushing water of the spray flue 10101 and the absorbent liquid generated during the sulfur recovery process of the absorption section 10105, which is convenient for subsequent treatment.

[0043] In the embodiments provided in this application, it should be understood that the disclosed systems, modules, and methods can be implemented in other ways. For example, the module embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, or indirect coupling or communication connection between modules or units, and may be electrical, mechanical, or other forms.

[0044] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. This application is not limited to the exact structures described above and illustrated in the accompanying drawings, and it should not be considered that the specific implementation of this application is limited to these descriptions. For those skilled in the art, various changes and modifications made without departing from the concept of this application should be considered to fall within the protection scope of this application.

Claims

1. A device for resolving the flushing of ammonium sulfate crystals at the interface of the absorption tower of the sulfur recovery section with the flue gas, characterized by, Including absorption tower assembly (101), the absorption tower assembly (101) includes flue (10101), the flue (10101) is internally provided with flushing assembly (102), one side of the flue (10101) is provided with flue gas interface (10102), the flushing assembly (102) includes communication ring (10204), the communication ring (10204) is fixedly installed in the inside middle part of flue (10101), the communication ring (10204) is communicated with several spray branch pipes (10205), one side of the spray branch pipe (10205) is provided with several spray head interfaces (10206), the spray head interface (10206) is equidistant arrangement, and the spray head interface (10206) is towards the inner side wall of flue (10101), the spray head interface (10206) is internally fixedly installed with spiral spray head (10207).

2. A device for resolving the flushing of ammonium sulfate crystals at the interface of the absorption tower of the sulfur recovery section with the flue gas, according to claim 1, characterized in that, The spray branch pipe (10205) is arranged in annular array, the positions of the spray head interfaces (10206) and the positions of the spray head interfaces (10206) of adjacent spray branch pipes (10205) are staggered.

3. A device for resolving the flushing of ammonium sulfate crystals at the interface of the absorption tower of the sulfur recovery section with the flue gas, according to claim 1, characterized in that, One end of the communication ring (10204) is communicated with the transmission pipe (10202), one end of the transmission pipe (10202) penetrates the bottom of the flue gas interface (10102).

4. A device for resolving the flushing of ammonium sulfate crystals at the interface of the absorption tower of the sulfur recovery section with the flue gas, according to claim 3, characterized in that, The bottom end of the transmission pipe (10202) is provided with a booster pump (10201), and the output end of the booster pump (10201) is communicated with the transmission pipe (10202).

5. A device for resolving the flushing of ammonium sulfate crystals at the interface of the absorption tower of the sulfur recovery section with the flue gas, according to claim 4, characterized in that, The input end of the booster pump (10201) is provided with a process water interface (10203).

6. A device for resolving the flushing of ammonium sulfate crystals at the interface of the absorption tower of the sulfur recovery section with the flue gas according to claim 1, characterized in that, The inner side wall of the flue (10101) is fixedly installed with a reinforcing layer (10107), and the material of the reinforcing layer (10107) is heat-resistant alloy steel.

7. A device for resolving the flushing of ammonium sulfate crystals at the interface of the absorption tower of the sulfur recovery section with the flue gas, according to claim 6, characterized in that, The surface of the reinforcing layer (10107) is covered with a wear-resistant layer, and the material of the wear-resistant layer is silicon nitride ceramic.

8. A device for resolving the flushing of ammonium sulfate crystals at the interface of the absorption tower of the sulfur recovery section with the flue gas, according to claim 1, characterized in that, The bottom of the flue (10101) is fixedly installed with a liquid storage tank (10103), and one side of the liquid storage tank (10103) is provided with a circulation interface (10104).

9. A device for resolving the flushing of ammonium sulfate crystals at the interface of the absorption tower of the sulfur recovery section with the flue gas, according to claim 1, characterized in that, The top of the flue (10101) is fixedly installed with an absorption section (10105), and the top of the absorption section (10105) is provided with an exhaust interface (10106).

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