Device for cleaning annular groove of desulfurization regeneration tower on line

Abstract

The utility model discloses a device for cleaning an annular groove of a desulfurization regeneration tower on line, which relates to the technical field of coke oven gas purification and is characterized in that a complete and efficient working system for cleaning the annular groove of the desulfurization regeneration tower on line is integrally designed and constructed, and all components work cooperatively according to a specific connection relation. And a series of processes of receiving and conveying the desulfurization liquid, reacting in the tower, discharging impurities to the annular groove and cleaning the overflow weir are completed. The system ensures that in the operation process of the desulfurization regeneration tower, not only can the desulfurization operation related to gas purification be normally carried out, but also the annular groove and the overflow weir area in which impurities are easy to accumulate can be effectively cleaned in time, so that the working efficiency and performance of the tower are prevented from being influenced by accumulation of impurities such as sulfur foam, the continuous and stable operation of the desulfurization process is ensured, and the energy consumption is reduced. The reliability and the production efficiency of the whole gas purification process are improved, the manual cleaning cost is reduced, the possibility of production stagnation caused by equipment faults is reduced, and the economic benefits and the environmental protection benefits of enterprises are improved.

Description

Technical Field

[0001] This utility model relates to the field of coke oven gas purification technology, and in particular to a device for online cleaning of the annular trough of a desulfurization regeneration tower. Background Technology

[0002] In the coke oven gas purification process, removing hydrogen sulfide from the gas is crucial. Hydrogen sulfide not only corrodes equipment and increases maintenance costs, but also pollutes the environment and harms human health. As the core equipment in the desulfurization process, the performance of the regeneration tower directly affects the desulfurization effect. Currently, after a period of operation, sulfur foam accumulates in the overflow weir and annular trough of the regeneration tower, forming "sulfur sludge." This leads to numerous problems, such as limited production load, reduced absorption efficiency of the desulfurization liquid, pipeline blockage leading to production stoppage risks, and environmental pressure due to difficult cleaning. Current methods for handling sulfur sludge accumulation in the annular trough of the regeneration tower are insufficient, and a new solution is urgently needed. Utility Model Content

[0003] The purpose of this invention is to provide an online cleaning device for the annular trough of a desulfurization regeneration tower, which solves the problems existing in the prior art. It has a simple structure, is easy to use, solves the problem of difficult cleaning of the annular trough of the regeneration tower, ensures stable operation of the desulfurization section, and improves production efficiency and economic benefits.

[0004] To achieve the above objectives, this utility model provides the following solution:

[0005] This utility model provides an online cleaning device for the annular trough of a desulfurization regeneration tower, comprising: a reaction tank, a first pipe, a desulfurization liquid pump, a second pipe, a desulfurization regeneration tower, a foam tank, a cleaning pipe, a first valve, and a cleaning nozzle. The reaction tank is used to receive the desulfurization liquid flowing out from the bottom of the desulfurization tower. One end of the first pipe is connected to and communicates with the reaction tank. The input end of the desulfurization liquid pump is connected to and communicates with the end of the first pipe away from the reaction tank. One end of the second pipe is connected to and communicates with the output end of the desulfurization liquid pump. The desulfurization regeneration tower includes a tower body, an annular pipe, a premixing nozzle, a compressed air pipe, an overflow weir, an annular trough, and a foam pipe. The annular pipe is located at the bottom of the tower body, and the second pipe is sealed and connected to the bottom of the tower body. The annular pipe is located at the bottom of the tower body and connected to the second pipe. The premixed nozzles are connected to the annular pipe. One end of the compressed air pipe is sealed and connected to the bottom of the side wall of the tower body, and the other end is connected to the compressed air source. The overflow weir is located at the top of the tower body. The annular groove is fitted outside the overflow weir. One end of the foam pipe is connected to the bottom of the annular groove. The foam groove is connected to the end of the foam pipe away from the annular groove. One end of the cleaning pipe is connected to the second pipe, and the other end is sealed and connected to the top of the desulfurization regeneration tower and extends into the desulfurization regeneration tower. The first valve is located on the cleaning pipe. The cleaning nozzle is connected to the end of the cleaning pipe that extends into the desulfurization regeneration tower and effectively covers the annular groove and the overflow weir area with the sprayed desulfurization liquid.

[0006] Preferably, the cleaning nozzle is a stainless steel rotating conical nozzle.

[0007] Preferably, the cleaning pipeline includes a main pipeline and multiple branch pipelines. One end of the main pipeline is connected to and communicates with the second pipeline, and the other end is connected to and communicates with each of the branch pipelines. The other end of each branch pipeline is used to extend into the top of the tower body and connect to and communicate with the cleaning nozzle. The first valve is provided on the main pipeline.

[0008] Preferably, it also includes a plurality of second valves, with one second valve provided on each of the branch pipes.

[0009] Preferably, it also includes multiple short sections, one end of which is fixedly connected to and communicates with the branch pipe, and the other end is threadedly connected to the cleaning nozzle.

[0010] Preferably, it also includes a third valve, one of which is provided on one of the second pipes, and the third valve is located between the connection between the main pipe and the second pipe and the desulfurization liquid pump.

[0011] Preferably, it also includes a fourth valve, one of which is provided on one of the foam pipes.

[0012] The present invention achieves the following technical advantages over the prior art:

[0013] This invention provides an online cleaning device for the annular trough of a desulfurization regeneration tower. The device's overall design constructs a complete and efficient online cleaning system for the annular trough. Each component works collaboratively according to specific connections, completing a series of processes from receiving and transporting the desulfurization liquid, in-tower reaction, impurity discharge, to cleaning the annular trough and overflow weir. This system design ensures that during operation, the desulfurization regeneration tower can not only perform normal desulfurization operations related to coal gas purification, but also effectively clean the annular trough and overflow weir areas where impurities easily accumulate. This prevents the accumulation of impurities such as sulfur foam from affecting the tower's working efficiency and performance, ensuring the continuous and stable operation of the desulfurization process, improving the reliability and production efficiency of the entire coal gas purification process, reducing manual cleaning costs, minimizing the possibility of production stoppages due to equipment failure, and enhancing both economic and environmental benefits for the enterprise. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A schematic diagram of the structure of the device for online cleaning of the annular groove of the desulfurization regeneration tower provided by this utility model;

[0016] In the diagram: 1. Desulfurization regeneration tower; 2. Annular pipe; 3. Foam tank; 4. Compressed air pipeline; 5. Reaction tank; 6. Second pipeline; 7. Third valve; 8. Desulfurization liquid pump; 9. Main pipeline; 10. Short section; 11. Nozzle; 12. Foam pipeline; 13. Overflow weir; 14. Annular tank. Detailed Implementation

[0017] 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.

[0018] The purpose of this invention is to provide an online cleaning device for the annular trough of a desulfurization regeneration tower, which solves the problems existing in the prior art. It has a simple structure, is easy to use, solves the problem of difficult cleaning of the annular trough of the regeneration tower, ensures stable operation of the desulfurization section, and improves production efficiency and economic benefits.

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] This utility model provides a device for online cleaning of the annular groove 14 of the desulfurization regeneration tower 1, such as... Figure 1As shown, the system includes: a reaction tank 5, a first pipeline, a desulfurization liquid pump 8, a second pipeline 6, a desulfurization regeneration tower 1, a foam tank 3, a cleaning pipeline, a first valve, and a cleaning nozzle 11. The reaction tank 5 receives the desulfurization liquid flowing out from the bottom of the desulfurization tower. One end of the first pipeline is connected to and communicates with the reaction tank 5. The input end of the desulfurization liquid pump 8 is connected to and communicates with the end of the first pipeline away from the reaction tank 5. One end of the second pipeline 6 is connected to and communicates with the output end of the desulfurization liquid pump 8. The desulfurization regeneration tower 1 includes a tower body, an annular pipe 2, premixing nozzles, a compressed air pipeline 4, an overflow weir 13, an annular tank 14, and a foam pipeline 12. The annular pipe 2 is located at the bottom of the tower body. The second pipeline 6 is sealed and connected to the bottom of the tower body. Each premixing nozzle is located on the annular pipe 2. One end of the compressed air pipeline 4 is sealed and connected to the bottom of the side wall of the tower body. The other end is used to connect with the compressed air source. The overflow weir 13 is set at the top of the tower body. The annular groove 14 is sleeved on the outside of the overflow weir 13. One end of the foam pipe 12 is connected to the bottom of the annular groove 14 and communicates with it. The foam groove 3 is connected to the end of the foam pipe 12 away from the annular groove 14 and communicates with it. One end of the cleaning pipe is connected to the second pipe 6 and communicates with it. The other end is sealed to the top of the desulfurization regeneration tower 1 and extends into the desulfurization regeneration tower 1. The first valve is set on the cleaning pipe. The cleaning nozzle 11 is connected to the end of the cleaning pipe that extends into the desulfurization regeneration tower 1 and communicates with it, so that the sprayed desulfurization liquid effectively covers the annular groove 14 and the overflow weir 13 area. The reaction tank 5 serves as the collection starting point of the desulfurization liquid, realizing the orderly collection of the desulfurization liquid discharged from the desulfurization tower, providing a stable source for the subsequent desulfurization liquid circulation treatment, ensuring that the entire desulfurization system can continuously obtain the desulfurization liquid to be treated, and maintaining the continuous operation of the system. The first pipeline establishes a direct connection between the reaction tank 5 and the desulfurization liquid pump 8, ensuring that the desulfurization liquid collected from the reaction tank 5 can be smoothly and stably delivered to the desulfurization liquid pump 8. This guarantees the smooth transmission of the desulfurization liquid within the system and reduces system operation problems caused by poor transmission. The reasonable connection of the desulfurization liquid pump 8 enables it to effectively draw desulfurization liquid from the first pipeline, providing power support for the subsequent delivery of the desulfurization liquid to the desulfurization regeneration tower 1. This ensures that the desulfurization liquid has sufficient pressure for circulation within the system, maintaining normal processing flow. The desulfurization liquid pump 8 smoothly delivers the pressurized desulfurization liquid to the second pipeline 6, providing a flow channel for the desulfurization liquid to enter the desulfurization regeneration tower 1. This ensures that the desulfurization regeneration tower 1 can continuously receive a sufficient supply of desulfurization liquid during operation to complete desulfurization-related operations. The desulfurization liquid entering the desulfurization regeneration tower 1 can be evenly distributed into the annular pipe 2. Through the premixing nozzles on the annular pipe 2, the desulfurization liquid can be fully premixed with subsequent incoming substances (such as compressed air), which is beneficial for efficient reaction at the bottom of the tower and provides the basic conditions for achieving good desulfurization results. Compressed air pipeline 4 provides a channel for introducing compressed air into desulfurization regeneration tower 1, ensuring that sufficient quantity and pressure of compressed air can be delivered to the bottom of the tower.The sealed connection prevents gas leakage, improves energy utilization efficiency and reaction stability, and, through specific connection positions, allows compressed air and desulfurization liquid to mix thoroughly near the annular pipe 2, promoting the regeneration reaction of the desulfurization solution. The overflow weir 13 controls the liquid level inside the tower, ensuring it remains within a suitable range to facilitate normal reaction and separation operations. The annular trough 14, in conjunction with the overflow weir 13, collects substances floating at the top (such as sulfur foam), which are then led out of the tower through the foam pipe 12, ensuring timely discharge of substances from the tower and maintaining the stability of the tower's environment and operating conditions. The foam tank 3 provides a storage and further processing area for sulfur foam and other substances drawn from the desulfurization regeneration tower 1, enabling rational arrangement and subsequent disposal of substances discharged from the tower, avoiding the adverse effects of indiscriminate discharge on the environment and system, and contributing to the orderly operation of the entire production process. Desulfurization liquid can be obtained from the second pipe 6 and introduced into the desulfurization regeneration tower 1 through the cleaning pipe, making it possible to clean the annular tank 14 and the overflow weir 13. This allows for direct cleaning of key areas within the tower where impurities easily accumulate. The first valve can flexibly control the flow of desulfurization liquid in the cleaning pipe. By opening or closing the valve, it is possible to decide whether to perform cleaning operations according to actual needs, and to control the flow rate and time of the desulfurization liquid entering the tower, enhancing the operability and flexibility of the cleaning device. The reasonable arrangement of the cleaning nozzles 11 ensures that the sprayed desulfurization liquid can fully cover the annular tank 14 and the overflow weir 13 area. This allows for timely cleaning of these areas, removing impurities (such as sulfur foam) adhering to them, preventing impurity accumulation, and thus ensuring the normal function of the overflow weir 13 and the annular tank 14, maintaining the stable operation of the desulfurization regeneration tower 1.

[0021] In a preferred embodiment, the cleaning pipeline includes a main pipeline 9 and multiple branch pipelines. One end of the main pipeline 9 is connected to and communicates with the second pipeline 6, and the other end is connected to and communicates with each branch pipeline. The other end of each branch pipeline extends into the top of the tower body and connects to and communicates with the cleaning nozzle 11. A first valve is installed on the main pipeline 9. The design of the main pipeline 9 and the branch pipelines allows the desulfurization liquid obtained from the second pipeline 6 to be distributed to multiple desulfurization regeneration towers 1, enabling simultaneous cleaning of multiple desulfurization regeneration towers 1 and improving cleaning efficiency. Installing the first valve on the main pipeline 9 facilitates unified control of the inflow and outflow of desulfurization liquid in the entire cleaning system, simplifying operation and management.

[0022] In a preferred embodiment, the device for online cleaning of the annular trough 14 of the desulfurization regeneration tower 1 further includes multiple second valves, one of which is installed on each branch pipe. Each second valve on a branch pipe can individually control the flow of desulfurization liquid within that branch pipe. In actual operation, this allows for targeted control of the opening and closing of each branch pipe based on the degree of contamination at different locations of the annular trough 14 and the overflow weir 13, further improving the precision and flexibility of the cleaning operation to achieve the best cleaning effect.

[0023] In a preferred embodiment, the device for online cleaning of the annular trough 14 of the desulfurization regeneration tower 1 further includes a short section 10. One end of the short section 10 is fixedly connected to and communicates with a branch pipe, and the other end is threadedly connected to a cleaning nozzle 11. The short section 10 serves two purposes: firstly, it connects the branch pipe and the cleaning nozzle 11, ensuring smooth liquid transmission; secondly, the threaded connection facilitates the installation and removal of the nozzle 11. When the nozzle 11 becomes clogged or damaged, it can be quickly replaced and repaired, reducing downtime and improving the ease of maintenance of the device.

[0024] In a preferred embodiment, the device for online cleaning of the annular tank 14 of the desulfurization regeneration tower 1 further includes a third valve 7. A third valve 7 is installed on a second pipe 6, located between the connection point of the main pipe 9 and the second pipe 6 and the desulfurization liquid pump 8. The third valve 7 controls the flow rate and pressure of the desulfurization liquid entering the cleaning pipe, ensuring sufficient desulfurization liquid is obtained during the cleaning operation while preventing excessive impact on the normal circulation of the desulfurization liquid in the entire desulfurization system. Furthermore, during maintenance of the cleaning pipe and related equipment, this valve can be closed to disconnect the cleaning system from the main desulfurization liquid circulation pipe, ensuring maintenance safety.

[0025] In a preferred embodiment, the device for online cleaning of the annular trough 14 of the desulfurization regeneration tower 1 further includes a fourth valve. A fourth valve is installed on a foam pipe 12. The fourth valve can control the discharge of substances in the foam pipe 12. By reasonably adjusting the valve opening, the speed and flow rate of sulfur foam and other substances discharged from the annular trough 14 can be better controlled to ensure that the discharge of substances in the tower is in a suitable state, preventing the discharge from being too fast or too slow from affecting the normal operation of the system. At the same time, it can also cut off the discharge channel in time in case of abnormality and carry out emergency treatment.

[0026] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. An apparatus for cleaning the annular slot of a desulfurization regenerator on-line, characterized in that: include: The reaction tank is used to receive the desulfurization liquid flowing out from the bottom of the desulfurization tower; First pipeline; One end of the first pipe is connected to and in communication with the reaction tank; A desulfurization liquid pump, wherein the input end of the desulfurization liquid pump is connected and communicated with the end of the first pipeline away from the reaction tank; The second pipe, one end of which is connected to and communicates with the output end of the desulfurization liquid pump; A desulfurization regeneration tower includes a tower body, an annular pipe, premixed nozzles, compressed air pipes, an overflow weir, an annular groove, and foam pipes. The annular pipe is located at the bottom of the tower body. A second pipe is sealed and connected to the bottom of the tower body. The annular pipe is located at the bottom of the tower body and is connected to and connected to the second pipe. Each of the premixed nozzles is located on the annular pipe. One end of the compressed air pipe is sealed and connected to the bottom of the side wall of the tower body, and the other end is connected to a compressed air source. The overflow weir is located at the top of the tower body. The annular groove is fitted outside the overflow weir. One end of the foam pipe is connected to and connected to the bottom of the annular groove. A foam tank, wherein the foam tank is connected and communicates with the end of the foam pipe away from the annular groove; A cleaning pipe is provided, one end of which is connected to and communicates with the second pipe, and the other end is sealed to the top of the desulfurization regeneration tower and extends into the desulfurization regeneration tower. A first valve is provided on the cleaning pipe; as well as A cleaning nozzle is connected to one end of the cleaning pipe that extends into the desulfurization regeneration tower, and the cleaning nozzle is connected and connected to the end of the pipe, so that the sprayed desulfurization liquid effectively covers the annular trough and the overflow weir area.

2. The apparatus for online cleaning of the annular tank of the desulfurization regeneration tower according to claim 1, characterized in that: The cleaning nozzle is a stainless steel rotating cone nozzle.

3. The apparatus for cleaning the annular slot of the desulfurization regeneration tower online according to claim 2, characterized in that: The cleaning pipeline includes a main pipeline and multiple branch pipelines. One end of the main pipeline is connected to and communicates with the second pipeline, and the other end is connected to and communicates with each of the branch pipelines. The other end of each branch pipeline is used to extend into the top of the tower body and connect to and communicate with the cleaning nozzle. The first valve is installed on the main pipeline.

4. The apparatus for cleaning the annular groove of the desulfurization regeneration tower online according to claim 3, characterized in that: It also includes multiple second valves, with one second valve installed on each of the branch pipes.

5. The apparatus for cleaning the annular slot of the desulfurization regeneration tower online according to claim 4, characterized in that: It also includes multiple short sections, one end of which is fixedly connected to and communicates with the branch pipe, and the other end is threadedly connected to the cleaning nozzle.

6. The apparatus for cleaning the annular slot of the desulfurization regeneration tower online according to claim 5, characterized in that: It also includes a third valve, which is provided on one of the second pipes and is located between the connection between the main pipe and the second pipe and the desulfurization liquid pump.

7. The apparatus for cleaning the annular slot of the desulfurization regeneration tower online according to claim 6, characterized in that: It also includes a fourth valve, which is provided on one of the foam pipes.

Images