Dry-type desulfurization reactor
By setting up a scraper and a filter box in the dry desulfurization reactor, the problem of impurities accumulation in the inner wall of the reactor is solved, and the impurities are easily cleaned up, which improves the operating efficiency and environmental protection effect of the reactor.
Patent Information
- Application Number
- CN202420780222.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-04-16
AI Technical Summary
After long-term use of existing dry desulfurization reactors, impurities are easily accumulated on the inner wall of the reactor, resulting in inconvenient removal of impurities.
A scraper is arranged around the sliding plate that fits with the inner wall of the reaction box, and a filter box is provided to reduce impurities entering the reaction box in the flue gas. The slide plate drives the scraper to slide downwards, scrape off impurities in the inner wall of the reaction box, and releases the sealing plate by moving the sealing plate to facilitate cleaning of impurities.
It effectively solves the problem of impurities accumulation in the inner wall of the reactor, realizes convenient cleaning of impurities, and improves the operating efficiency and environmental protection effect of the reactor.
Smart Images
Figure CN222586117U_ABST
Abstract
Description
Technical Field
[0001] The utility model provides a dry desulfurization reactor, belonging to the technical field of desulfurization. Background Art
[0002] Dry desulfurization is a desulfurization technology commonly used in coal-fired power plants and industrial emission sources. Its main purpose is to remove sulfur dioxide from the exhaust gas. Dry desulfurization uses an absorbent, usually limestone, which is crushed and sprayed or atomized directly into the flue gas emission pipeline. When the sulfur dioxide in the flue gas comes into contact with the absorbent, the 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. Compared with wet desulfurization, dry desulfurization does not require a large amount of water to treat the exhaust gas and is more suitable for treating high-concentration gas emissions.
[0003] In the dry desulfurization spray system, calcium sulfide formed by the reaction of limestone particles and sulfur dioxide is carried to the dust removal equipment or other dust capture 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.
[0004] However, as a container for the reaction of limestone particles and sulfur dioxide, too many impurities will accumulate on its inner wall after a long period of reaction, including a small amount of calcium sulfide that is not carried out by the flue gas after the reaction and impurities in the flue gas itself. The existing dry desulfurization reactor is inconvenient to remove these impurities, so there is an urgent need for a dry desulfurization reactor to solve the above problems. Utility Model Content
[0005] The utility model provides a dry desulfurization reactor, which arranges scrapers that fit the inner wall of a reaction box around a sliding plate, so that the seal of the reaction box can be released while scraping off impurities, making it easy to clean the scraped impurities out of the reaction box, and a filter box is arranged to reduce the impurities that enter the reaction box in the flue gas, thereby solving the problem of inconvenient impurity removal in existing dry desulfurization reactors.
[0006] In order to solve the above problems, the utility model proposes the following technical solutions: a dry desulfurization reactor, comprising a support leg, to which a reaction box is fixedly connected; an absorbent injection pipe is arranged on one side of the reaction box, and an air intake pipe is arranged on the other side; a sliding plate is arranged in the reaction box for sliding up and down, and a scraper fitted with the inner wall of the reaction box is fixedly connected around the sliding plate; a connecting rod and a connecting plate are fixedly connected in sequence below the sliding plate, and a sealing plate for closing the bottom of the reaction box is fixedly connected below the connecting plate; a filter box is fixedly arranged on the outer wall of the reaction box, a filter plate is arranged in the filter box, and the filter box is connected to the air intake pipe.
[0007] As an improvement, a cleaning box is fixedly connected to the reaction box, and a motor is arranged on the cleaning box; a screw rod is fixedly connected to the output shaft of the motor, and a movable plate is threadedly connected to the screw rod.
[0008] As an improvement, a connecting column passing through the reaction box is fixedly connected below the movable plate, the connecting column is slidably arranged relative to the reaction box, and the connecting column is fixedly connected to a sliding plate located in the reaction box.
[0009] As an improvement, the reaction box is square, and four scrapers are provided, and the four scrapers correspond to four side surfaces inside the reaction box.
[0010] As an improvement, the absorbent injection pipe is connected to an absorbent nozzle; the absorbent nozzle corresponds to the position of the air inlet pipe, and the absorbent nozzle and the air inlet pipe are both located on the inner wall of the reaction box.
[0011] As an improvement, the reaction box is connected with an air outlet pipe, and the sliding plate is provided with an air outlet hole corresponding to the position of the air outlet pipe.
[0012] Beneficial effects of the utility model:
[0013] 1. A sliding plate is provided for sliding up and down, and a scraper that fits the inner wall of the reaction box is fixedly connected around the sliding plate; when the sliding plate slides downward, it can drive the scraper to slide downward, so as to remove the impurities attached to the inner wall of the reaction box; a connecting rod and a connecting plate are fixedly connected below the sliding plate in sequence, and a sealing plate that seals the bottom of the reaction box is fixedly connected below the connecting plate; when the sliding plate slides downward to drive the scraper to scrape off impurities, the sealing plate moves downward to release the seal of the reaction box, so that the scraped impurities can fall out of the reaction box. Therefore, the utility model can clean the impurities out of the reaction box while scraping them off, which can solve the problem of inconvenience in removing impurities in the existing dry desulfurization reactor.
[0014] 2. A filter box is fixedly arranged on the outer wall of the reaction box, a filter plate is arranged inside the filter box, and the filter box is connected with the air inlet pipe; by setting the filter structure, the flue gas entering the reaction box from the air inlet pipe can be filtered to avoid excessive impurities in the flue gas entering the reaction box and increasing the speed of dust accumulation on the inner wall of the reaction box. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a stereoscopic diagram of a dry desulfurization reactor of the utility model.
[0016] Figure 2 This is a stereoscopic diagram of a dry desulfurization reactor of the utility model from another perspective.
[0017] Figure 3This is a diagram showing the internal structure of a reaction box of a dry desulfurization reactor of the utility model.
[0018] Figure 4 This is a diagram showing the internal structure of a cleaning box of a dry desulfurization reactor of the utility model.
[0019] Figure 5 The utility model is a sliding plate of a dry desulfurization reactor and a connection structure diagram below it.
[0020] 1. Support legs; 2. Absorbent injection pipe; 3. Reaction box; 4. Cleaning box; 5. Exhaust pipe; 6. Inlet pipe; 7. Sealing plate; 8. Filter box; 9. Connecting rod; 10. Absorbent nozzle; 11. Scraper; 12. Filter plate; 13. Connecting plate; 14. Screw rod; 15. Motor; 16. Moving plate; 17. Connecting column; 18. Sliding plate; 19. Exhaust hole. DETAILED DESCRIPTION
[0021] The utility model is further described below in conjunction with the accompanying drawings.
[0022] according to Figure 1-5 As shown: the utility model provides a dry desulfurization reactor: it includes a support leg 1, to which a reaction box 3 is fixedly connected; an absorbent injection pipe 2 is arranged on one side of the reaction box 3, and an air intake pipe 6 is arranged on the other side; a sliding plate 18 is arranged in the reaction box 3 for sliding up and down, and a scraper 11 that fits the inner wall of the reaction box 3 is fixedly connected around the sliding plate 18; a connecting rod 9 and a connecting plate 13 are fixedly connected in sequence below the sliding plate 18, and a sealing plate 7 that closes the bottom of the reaction box 3 is fixedly connected below the connecting plate 13; a filter box 8 is fixedly arranged on the outer wall of the reaction box 3, a filter plate 12 is arranged in the filter box 8, and the filter box 8 is connected to the air intake pipe 6.
[0023] By arranging scrapers 11 in contact with the inner wall of the reaction box 3 around the sliding plate 18, the seal of the reaction box 3 can be released while scraping off impurities, making it easy to clean out the scraped impurities from the reaction box 3, and arranging a filter box 8 to reduce the impurities entering the reaction box 3 in the flue gas, the problem of inconvenient impurity removal in the existing dry desulfurization reactor can be solved.
[0024] The reaction box 3 is fixedly connected with a cleaning box 4, and a motor 15 is arranged on the cleaning box 4; a screw rod 14 is fixedly connected to the output shaft of the motor 15, and a moving plate 16 is threadedly connected to the screw rod 14. A connecting column 17 passing through the reaction box 3 is fixedly connected below the moving plate 16, and the connecting column 17 is slidably arranged relative to the reaction box 3, and the connecting column 17 is fixedly connected to a sliding plate 18 located in the reaction box 3.
[0025] The structural setting of the motor 15 and the screw rod 14 can convert the rotation of the screw rod 14 into the movement of the moving plate 16, and transmit the movement to the sliding plate 18 through the connecting column 17, thereby driving the sliding plate 18 to slide in the reaction box 3.
[0026] The reaction box 3 is square, and four scrapers 11 are provided, and the four scrapers 11 correspond to the four side surfaces inside the reaction box 3 .
[0027] The arrangement of the four scrapers 11 can completely scrape and clean the four side walls inside the square reaction box 3 while the sliding plate 18 slides downward.
[0028] The absorbent injection pipe 2 is connected to an absorbent nozzle 10 ; the absorbent nozzle 10 corresponds to the position of the air inlet pipe 6 , and both the absorbent nozzle 10 and the air inlet pipe 6 are located on the inner wall of the reaction box 3 .
[0029] The absorbent nozzle 10 is arranged corresponding to the position of the air inlet pipe 6, which can increase the mixing reaction of limestone and flue gas. At the same time, the absorbent nozzle 10 and the air inlet pipe 6 are located on the inner wall of the reaction box 3 to avoid interference and collision between the scraper 11 and the inner wall of the reaction box 3 when scraping impurities thereon.
[0030] The reaction box 3 is connected with an air outlet pipe 5, and the sliding plate 18 is provided with an air outlet hole 19 corresponding to the position of the air outlet pipe 5. The arrangement of the air outlet hole 19 and the air outlet pipe 5 can facilitate the discharge of the flue gas after desulfurization.
[0031] Principle of the utility model
[0032] When the utility model is used, the absorbent injection pipe 2 and the absorbent injection head can spray limestone spray into the reaction box 3, and the sulfur-containing flue gas enters the reaction box 3 from the air inlet pipe 6. The two react with each other and can desulfurize the flue gas. The calcium sulfide produced after desulfurization can flow out of the reaction box 3 from the air outlet 19 and the air outlet pipe 5 along with the flue gas and enter the next step of dust removal equipment.
[0033] When the flue gas enters the reaction box 3 from the air inlet pipe 6, the filter plate 12 in the filter box 8 can filter most of the impurities in the flue gas, preventing excessive impurities in the flue gas from entering the reaction box 3 and affecting the dust accumulation speed of the inner wall of the reaction box 3. When a large amount of dust and impurities adhere to and accumulate on the inner wall of the reaction box 3 and need to be cleaned, first suspend the desulfurization work, start the motor 15, and make the sliding plate 18 slide downward under the drive of the moving plate 16 and the connecting column 17. At this time, the scraper 11 in contact with the inner wall of the reaction box 3 moves downward to scrape off the impurities attached to the inner wall of the reaction box 3; and when the sliding plate 18 moves downward, driven by the connecting rod 9 and the connecting plate 13, the sealing plate 7 also moves downward. At this time, the sealing plate 7 no longer blocks the bottom of the reaction box 3, and the scraped impurities will fall directly from the reaction box 3. The staff can then clean up the impurities falling from the reaction box 3 and the impurities on the sealing plate 7, the connecting plate 13, and the sliding plate 18, which is very convenient.
[0034] 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 dry desulfurization reactor, comprising a support leg (1), to which a reaction box (3) is fixedly connected; an absorbent injection pipe (2) is arranged on one side of the reaction box (3), and an air intake pipe (6) is arranged on the other side; the characteristics are: A sliding plate (18) is provided in the reaction box (3) so as to slide up and down, and a scraper (11) is fixedly connected around the sliding plate (18) and is in contact with the inner wall of the reaction box (3); a connecting rod (9) and a connecting plate (13) are fixedly connected below the sliding plate (18) in sequence, and a sealing plate (7) is fixedly connected below the connecting plate (13) for sealing the bottom of the reaction box (3); a filter box (8) is fixedly provided on the outer wall of the reaction box (3), a filter plate (12) is provided inside the filter box (8), and the filter box (8) is connected to the air inlet pipe (6).
2. A dry desulfurization reactor according to claim 1, characterized in that: The reaction box (3) is fixedly connected to a cleaning box (4), and a motor (15) is arranged on the cleaning box (4); a screw rod (14) is fixedly connected to the output shaft of the motor (15), and a moving plate (16) is threadedly connected to the screw rod (14).
3. A dry desulfurization reactor according to claim 2, characterized in that: A connecting column (17) passing through the reaction box (3) is fixedly connected below the movable plate (16); the connecting column (17) is slidably arranged relative to the reaction box (3), and the connecting column (17) is fixedly connected to a sliding plate (18) located in the reaction box (3).
4. A dry desulfurization reactor according to claim 1, characterized in that: The reaction box (3) is square, and four scrapers (11) are provided, and the four scrapers (11) correspond to four side surfaces inside the reaction box (3).
5. A dry desulfurization reactor according to claim 1, characterized in that: The absorbent injection pipe (2) is connected to an absorbent nozzle (10); the absorbent nozzle (10) corresponds to the position of the air inlet pipe (6), and the absorbent nozzle (10) and the air inlet pipe (6) are both located on the inner wall of the reaction box (3).
6. A dry desulfurization reactor according to claim 1, characterized in that: The reaction box (3) is connected to an air outlet pipe (5), and the sliding plate (18) is provided with an air outlet hole (19) corresponding to the position of the air outlet pipe (5).