Cleaning device for dry desulfurization reactor
By designing a rotating cleaning structure and a cleaning device for lifting and lowering blocks, the problem of difficult cleaning and reflux prevention in the inner wall of the dry desulfurization reactor is solved, and the operation process is simplified.
Patent Information
- Application Number
- CN202421584424.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-05
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-05
AI Technical Summary
When cleaning a dry desulfurization reactor, impurities are tightly attached to the inner wall of the reactor and are not easy to clean. The reactor usually needs to be removed to completely clean.
A cleaning device is designed, including a rotating cleaning structure and a lifting barrier. The cleaning structure is fitted with the inner wall of the reaction cylinder, and the scraper is driven by the motor to scrape the inner wall. The barrier blocks the communication holes through the lifting structure to prevent the cleaning liquid from flowing back.
Effectively scrape off impurities in the inner wall of the reaction cylinder to avoid the return of the cleaning liquid, simplifying the cleaning process and no need to disassemble the pipes connected to the reactor.
Smart Images
Figure CN222816598U_ABST
Abstract
Description
Technical Field
[0001] The utility model provides a cleaning device for a dry desulfurization reactor, belonging to the technical field of desulfurization. Background Art
[0002] Dry desulfurization is a relatively common desulfurization technology, which is widely used in the treatment of some sulfur-containing waste gases. Dry desulfurization does not require the use of chemical solutions, avoids the environmental pollution of generating a large amount of wastewater and waste liquid, and is conducive to protecting water resources and the ecological environment. Dry desulfurization uses an absorbent, usually limestone. Powdered limestone is usually sprayed into the reactor in a jet manner. When sulfur dioxide in the flue gas contacts the absorbent, sulfur dioxide will react chemically with the absorbent to form products such as calcium sulfide. These products can be collected and processed to reduce pollution to the environment.
[0003] In the dry desulfurization reaction, calcium sulfide formed by the reaction of limestone and sulfur dioxide is carried to the dust removal equipment or other dust collection facilities along with the flue gas. The calcium sulfide is further processed or recovered and then discharged into the flue gas to prevent it from polluting the environment. However, some calcium sulfide and impurities in the flue gas will adhere to the reactor, forming a thick layer of dirt in the reactor over time, so it needs to be cleaned.
[0004] Since the reactor is connected to the flue gas duct and the limestone injection duct, when cleaning the reactor, impurities are usually firmly attached to the inner wall of the reactor and are difficult to clean. It is often necessary to disassemble the reactor for thorough cleaning. Utility Model Content
[0005] The technical problem to be solved by the utility model is that when cleaning a dry desulfurization reactor, in order to avoid the backflow of cleaning liquid, it is often necessary to remove the connecting pipes of the reactor, and at the same time, impurities are often tightly attached to the inner wall of the reactor and are not easy to clean.
[0006] In order to solve the above problems, the utility model proposes the following technical solutions: a cleaning device for a dry desulfurization reactor, comprising a support leg, which is fixedly connected to a reaction cylinder upward; two corresponding connecting holes are provided on the reaction cylinder, and the two connecting holes are respectively connected to a spray pipe and an air inlet pipe; an air outlet pipe is connected above the reaction cylinder; a water tank is fixedly arranged on the reaction cylinder, and a cleaning structure is arranged in the water tank; a cleaning structure is rotatably arranged in the reaction cylinder, and the cleaning structure is in contact with the inner wall of the reaction cylinder; a slide groove connected to the connecting hole is provided in the wall of the reaction cylinder, and a blocking block is slidably arranged in the slide groove; a fixed box is fixedly connected to the outer wall of the reaction cylinder, and a lifting structure fixedly connected to the blocking block is arranged in the fixed box.
[0007] As an improvement, the cleaning structure includes a water pump and a cleaning nozzle; the cleaning nozzle is connected to the output pipe of the water pump, and the cleaning nozzle extends into the reaction cylinder; the air outlet pipe passes through the water tank.
[0008] As an improvement, the cleaning structure comprises a bottom scraper and a side scraper; the bottom scraper is fixedly connected to the side scraper; the bottom scraper fits the bottom of the reaction tube, and the side scraper fits the side wall of the reaction tube.
[0009] As an improvement, a motor is provided at the bottom of the reaction cylinder, a rotating shaft is fixedly connected to the output shaft of the motor, and the rotating shaft is fixedly connected to the bottom scraper.
[0010] As an improvement, the lifting structure includes a lifting plate and a connecting rod; a guide groove connected to the slide groove is opened on one side of the fixed box, and the connecting rod is located in the guide groove; one end of the connecting rod is fixedly connected to the lifting plate, and the other end of the connecting rod is fixedly connected to the blocking block.
[0011] As an improvement, a screw rod is rotatably arranged in the fixing box, and the lifting plate is threadedly connected to the screw rod.
[0012] As an improvement, the bottom of the reaction cylinder is connected with an outlet pipe, and a valve is arranged on the outlet pipe.
[0013] Beneficial effects of the utility model:
[0014] 1. A cleaning structure is rotatably arranged inside the reaction cylinder, and the cleaning structure fits the inner wall of the reaction cylinder. By arranging the rotating cleaning structure, the inner wall of the reaction cylinder can be scraped, thereby scraping off the impurities tightly attached to the inner wall of the reaction cylinder, and the cleaning structure is combined to facilitate cleaning.
[0015] 2. A slide groove connected to the connecting hole is provided in the wall of the reaction cylinder, and a blocking block is slidably provided in the slide groove; the blocking block can be driven to move by the lifting structure, so that when the reaction cylinder is cleaned, the connecting hole is blocked to prevent the backflow of the cleaning liquid. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a stereoscopic diagram of a cleaning device for a dry desulfurization reactor of the utility model.
[0017] Figure 2 It is a stereoscopic diagram from another perspective of a cleaning device for a dry desulfurization reactor of the utility model.
[0018] Figure 3 It is a cross-sectional view of a cleaning device for a dry desulfurization reactor of the utility model.
[0019] Figure 4 The utility model is a cross-sectional view of a fixing box of a cleaning device for a dry desulfurization reactor.
[0020] 1. Support legs; 2. Injection pipe; 3. Reaction cylinder; 4. Water tank; 5. Exhaust pipe; 6. Inlet pipe; 7. Outflow pipe; 8. Water pump; 9. Cleaning nozzle; 10. Fixed box; 11. Side scraper; 12. Motor; 13. Bottom scraper; 14. Rotating shaft; 15. Lifting plate; 16. Guide groove; 17. Slide groove; 18. Connecting hole; 19. Blocking block; 20. Connecting rod; 21. Screw. DETAILED DESCRIPTION
[0021] The utility model is further described below in conjunction with the accompanying drawings.
[0022] according to Figure 1-4 As shown: the utility model provides a cleaning device for a dry desulfurization reactor: it includes a support leg 1, which is fixedly connected to a reaction tube 3 upward; two corresponding connecting holes 18 are provided on the reaction tube 3, and the two connecting holes 18 are respectively connected to the injection pipe 2 and the air inlet pipe 6; the upper part of the reaction tube 3 is connected to an air outlet pipe 5; a water tank 4 is fixedly arranged on the reaction tube 3, and a cleaning structure is arranged in the water tank 4; a cleaning structure is rotatably arranged in the reaction tube 3, and the cleaning structure is in contact with the inner wall of the reaction tube 3; a slide groove 17 connected to the connecting hole 18 is provided in the wall of the reaction tube 3, and a blocking block 19 is slidably arranged in the slide groove 17; a fixed box 10 is fixedly connected to the outer wall of the reaction tube 3, and a lifting structure fixedly connected to the blocking block 19 is arranged in the fixed box 10.
[0023] A cleaning structure is rotatably arranged inside the reaction cylinder 3 to scrape the inner wall of the reaction cylinder 3, thereby scraping off impurities tightly attached to the inner wall of the reaction cylinder 3, making cleaning easier; at the same time, by setting a lifting blocking block 19, when cleaning the reaction cylinder 3, the connecting hole 18 is blocked to prevent the backflow of the cleaning liquid; there is no need to disassemble the pipeline connected to the reaction cylinder 3, which is very convenient.
[0024] The cleaning structure includes a water pump 8 and a cleaning nozzle 9; the cleaning nozzle 9 is connected to the output pipe of the water pump 8, and the cleaning nozzle extends into the reaction tube 3; the air outlet pipe 5 passes through the water tank 4. The cleaning structure includes a bottom scraper 13 and a side scraper 11; the bottom scraper 13 is fixedly connected to the side scraper 11; the bottom scraper 13 is in contact with the bottom of the reaction tube 3, and the side scraper 11 is in contact with the side wall of the reaction tube 3. A motor 12 is provided at the bottom of the reaction tube 3, and a rotating shaft 14 is fixedly connected to the output shaft of the motor 12, and the rotating shaft 14 is fixedly connected to the bottom scraper 13.
[0025] The cleaning structure can rotate under the drive of the motor 12, so as to scrape the inner wall of the reaction tube 3 during the rotation, and with the cooperation of the cleaning structure, it can play a good effect of cleaning the reaction tube 3.
[0026] The lifting structure includes a lifting plate 15 and a connecting rod 20; a guide groove 16 connected to the slide groove 17 is provided on one side of the fixed box 10, and the connecting rod 20 is located in the guide groove 16; one end of the connecting rod 20 is fixedly connected to the lifting plate 15, and the other end of the connecting rod 20 is fixedly connected to the blocking block 19. A screw rod 21 is rotatably arranged in the fixed box 10, and the lifting plate 15 is threadedly connected to the screw rod 21.
[0027] The arrangement of the connecting rod 20 and the guide groove 16 can limit the rotation of the lifting plate 15 , so that the rotation of the screw rod 21 is converted into the movement of the lifting plate 15 , and the movement is transmitted to the blocking block 19 through the connecting rod 20 .
[0028] The bottom of the reaction cylinder 3 is connected with an outflow pipe 7, and a valve is provided on the outflow pipe 7 to facilitate the discharge of the waste water after cleaning.
[0029] Principle of the utility model
[0030] like Figure 1-2 This is the state diagram of normal use of this application. Limestone powder is sprayed into the reaction tube 3 from the injection pipe 2, and the gas to be desulfurized enters the reaction tube 3 from the air inlet pipe 6. After the two react in the reaction tube 3, they flow out from the air outlet pipe 5 and flow to the next process to be processed.
[0031] like Figure 3-4 As shown, when the reaction tube 3 needs to be cleaned, firstly, the screw 21 is turned to make the blocking block 19 move upward under the drive of the lifting plate 15 until the blocking block 19 blocks the connecting hole 18. At this time, it can be ensured that the cleaning liquid will not enter the injection pipe 2 and the air inlet pipe 6 through the connecting hole 18 during cleaning. At the same time, the motor 12 and the water pump 8 are started, and the water pump 8 can spray the cleaning liquid in the water tank 4 into the reaction tube 3. The motor 12 can drive the bottom scraper 13 and the side scraper 11 to scrape the inner wall of the reaction tube 3 to remove strongly attached impurities. At the same time, when the cleaning liquid gradually fills the reaction tube 3, the bottom scraper 13 and the side scraper 11 can also stir the cleaning liquid to speed up the cleaning of the reaction tube 3, and the cleaned waste water can be discharged from the outlet pipe 7.
[0032] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.
Claims
1. A cleaning device for a dry desulfurization reactor, comprising a support leg (1), wherein the support leg (1) is fixedly connected upwardly with a reaction tube (3); the reaction tube (3) is provided with two corresponding communication holes (18), and the two communication holes (18) are respectively connected with an injection pipe (2) and an air inlet pipe (6); the upper part of the reaction tube (3) is connected with an air outlet pipe (5); characterized in that: A water tank (4) is fixedly arranged on the reaction cylinder (3), and a cleaning structure is arranged in the water tank (4); a cleaning structure is rotatably arranged in the reaction cylinder (3), and the cleaning structure is in contact with the inner wall of the reaction cylinder (3); a slide groove (17) connected to the connecting hole (18) is opened in the wall of the reaction cylinder (3), and a blocking block (19) is slidably arranged in the slide groove (17); a fixed box (10) is fixedly connected to the outer wall of the reaction cylinder (3), and a lifting structure fixedly connected to the blocking block (19) is arranged in the fixed box (10).
2. The cleaning device for a dry desulfurization reactor according to claim 1, characterized in that: The cleaning structure comprises a water pump (8) and a cleaning nozzle (9); the cleaning nozzle (9) is connected to the output pipe of the water pump (8), and the cleaning nozzle extends into the reaction cylinder (3); the air outlet pipe (5) passes through the water tank (4).
3. The cleaning device for a dry desulfurization reactor according to claim 1, characterized in that: The cleaning structure comprises a bottom scraper (13) and a side scraper (11); the bottom scraper (13) and the side scraper (11) are fixedly connected; the bottom scraper (13) fits the bottom of the reaction tube (3), and the side scraper (11) fits the side wall of the reaction tube (3).
4. The cleaning device for a dry desulfurization reactor according to claim 3, characterized in that: A motor (12) is arranged at the bottom of the reaction cylinder (3); a rotating shaft (14) is fixedly connected to the output shaft of the motor (12); and the rotating shaft (14) is fixedly connected to the bottom scraper (13).
5. The cleaning device for a dry desulfurization reactor according to claim 1, characterized in that: The lifting structure comprises a lifting plate (15) and a connecting rod (20); a guide groove (16) connected to the slide groove (17) is provided on one side of the fixed box (10), and the connecting rod (20) is located in the guide groove (16); one end of the connecting rod (20) is fixedly connected to the lifting plate (15), and the other end of the connecting rod (20) is fixedly connected to the blocking block (19).
6. The cleaning device for a dry desulfurization reactor according to claim 5, characterized in that: A screw rod (21) is rotatably arranged in the fixing box (10), and the lifting plate (15) is threadedly connected to the screw rod (21).
7. The cleaning device for a dry desulfurization reactor according to claim 1, characterized in that: The bottom of the reaction cylinder (3) is connected to an outlet pipe (7), and a valve is provided on the outlet pipe (7).