Desulfurizing agent spraying device suitable for dry method

Abstract

The utility model discloses a desulfurizing agent spraying device suitable for a dry method, and belongs to the technical field of dry desulfurization. Comprising a spraying reaction box, and spraying equipment is arranged on one side of the spraying reaction box; the jet reaction box is fixedly connected with supporting legs and a bottom plate downwards in sequence; an L-shaped end cover is arranged on one side of the jet reaction box, seals the jet reaction box, and is arranged in a sliding manner relative to the jet reaction box; a spray head inserted into the spray reaction box is arranged on the spray equipment, a spray hole is formed in the spray head, a pressing plate is arranged on one side of the spray head in a sliding mode, and a dredging rod corresponding to the spray hole is fixedly connected to the pressing plate; a leakage groove is formed in the bottom of the spray head, and a blocking plate inserted into the leakage groove is fixedly connected to the end cover. According to the spraying device, the problems that a nozzle hole is inconvenient to clean and secondary blockage is easily caused in an existing spraying device for the dry-method desulfurizing agent can be solved.

Description

Technical Field

[0001] The utility model provides a desulfurizing agent injection device suitable for a dry method, belonging to the technical field of dry desulfurization. Background Art

[0002] Dry desulfurization is a desulfurization method used to reduce the emission of sulfur dioxide in flue gas from coal-fired power plants or other industrial facilities. Compared with traditional wet desulfurization, dry desulfurization does not involve the direct use of water or wetting agents to absorb and remove sulfur dioxide. In the dry desulfurization process, limestone is usually used as a desulfurizer. By spraying atomized limestone into the smoke, it reacts with the flue gas containing sulfur dioxide to form calcium sulfide, thereby effectively reducing the concentration of sulfur dioxide in the flue gas. The desulfurized flue gas can be directly discharged into the atmosphere after dust removal.

[0003] In the desulfurizer injection device, the small hole in the nozzle may be blocked due to the characteristics of the desulfurizer, especially when the desulfurizer contains impurities or large particles, the nozzle hole is blocked. The existing technology is inconvenient for cleaning the nozzle holes, and the injection reactor needs to be disassembled and then the nozzle holes are cleaned one by one. At the same time, during the cleaning process of the nozzle hole, the impurities cleaned are not easy to be discharged and are easily left in the nozzle, causing secondary blockage of the nozzle hole. Utility Model Content

[0004] The utility model provides a desulfurization agent injection device suitable for a dry process. By arranging a freely slidable end cover, the injection reaction box and the nozzle can be quickly opened. In addition, a clearing rod is arranged, and the spray hole can be directly cleaned by pressing. The problem that the nozzle hole is inconvenient to clean and easily causes secondary blockage in the existing dry desulfurization agent injection device can be solved.

[0005] In order to solve the above problems, the utility model proposes a technical solution: a desulfurization agent injection device suitable for a dry process, comprising an injection reaction box, on which an air inlet pipe and an air outlet pipe are arranged, and an injection device is arranged on one side of the injection reaction box; the injection reaction box is fixedly connected downwardly with support legs and a bottom plate in sequence; one side of the injection reaction box is provided with an L-shaped end cover, which closes the injection reaction box, and the L-shaped end cover is slidably arranged relative to the injection reaction box; the injection device is provided with a nozzle inserted into the injection reaction box, the nozzle is provided with an injection hole, a pressing plate is slidably arranged on one side of the nozzle, and a dredging rod corresponding to the injection hole is fixedly connected to the pressing plate; a drain groove is arranged at the bottom of the nozzle, and a blocking plate inserted into the drain groove is fixedly connected to the end cover.

[0006] As an improvement, a slide groove is provided in the nozzle, and a sliding plate fixedly connected to the pressing plate is slidably arranged in the slide groove; a spring groove is provided in the nozzle, and a movable rod fixedly connected to the sliding plate is arranged in the spring groove.

[0007] As an improvement, a compression spring sleeved on the movable rod is arranged in the spring slot, a limiting plate fixedly sleeved on the movable rod is arranged in the spring slot, and the limiting plate is located in the spring slot near the sliding slot.

[0008] As an improvement, the number of the dredging rods is the same as the number of the injection holes, and a dredging groove is provided on the pressing plate.

[0009] As an improvement, a motor is arranged on the bottom plate, and a screw rod is fixedly connected to the output shaft of the motor; a movable plate is threadedly connected to the screw rod, and a connecting cylinder fixedly connected to the end cover is fixedly connected to the movable plate.

[0010] As an improvement, a limiting rod passing through the movable plate is fixedly connected to the bottom plate, and the movable plate is slidably arranged relative to the limiting rod.

[0011] Beneficial effects of the utility model:

[0012] 1. An L-shaped end cover is provided on one side of the spray reaction box, which closes the spray reaction box and is slidably arranged relative to the spray reaction box; by setting the sliding L-shaped end cover, the spray reaction box can be quickly disassembled, so as to facilitate the cleaning of the nozzle. A drain groove is provided at the bottom of the nozzle, and a blocking plate inserted into the drain groove is fixedly connected to the end cover. When the end cover is removed, the blocking plate no longer blocks the drain groove, and the impurities cleaned by the nozzle can fall from the drain groove, which is very convenient.

[0013] 2. A pressing plate is slidably provided on one side of the nozzle, and a clearing rod corresponding to the injection hole is fixedly connected to the pressing plate; when the pressing plate is pressed, the clearing rod corresponding to the injection hole can be directly inserted into the injection hole, thereby clearing the injection hole, and the cleaned impurities fall from the drain groove and will not remain in the nozzle or the injection reaction box, thus avoiding the problem of secondary blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a stereoscopic diagram of a desulfurization agent injection device suitable for a dry process according to the utility model.

[0015] Figure 2 This is a stereoscopic diagram from another perspective of a desulfurization agent injection device suitable for a dry process according to the utility model.

[0016] Figure 3 This is an exploded view of the connection between the injection reaction box and the end cover of a desulfurization agent injection device suitable for a dry process according to the utility model.

[0017] Figure 4 The utility model is a cross-sectional view of the injection structure of a desulfurization agent injection device suitable for a dry process.

[0018] Figure 5 It is a partial enlarged view of a desulfurization agent injection device suitable for a dry process according to the utility model.

[0019] 1. Bottom plate; 2. Support legs; 3. Spraying equipment; 4. Spraying reaction box; 5. Exhaust pipe; 6. End cover; 7. Inlet pipe; 8. Connecting tube; 9. Moving plate; 10. Screw rod; 11. Motor; 12. Limit rod; 13. Spray head; 14. Clearing rod; 15. Pressing plate; 16. Clearing groove; 17. Leakage groove; 18. Spraying hole; 19. Blocking plate; 20. Slide groove; 21. Sliding plate; 22. Spring groove; 23. Compression spring; 24. Limiting plate; 25. Movable rod. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings.

[0021] according to Figure 1-5 As shown: the utility model provides a desulfurization agent injection device suitable for a dry process: it includes an injection reaction box 4, on which an air inlet pipe 7 and an air outlet pipe 5 are arranged, and an injection device 3 is arranged on one side of the injection reaction box 4; the injection reaction box 4 is fixedly connected with a support leg 2 and a bottom plate 1 in sequence downward; an L-shaped end cover 6 is arranged on one side of the injection reaction box 4, the L-shaped end cover 6 closes the injection reaction box 4, and the L-shaped end cover 6 is slidably arranged relative to the injection reaction box 4; a nozzle 13 inserted into the injection reaction box 4 is arranged on the injection device 3, a spray hole 18 is opened on the nozzle 13, a pressing plate 15 is slidably arranged on one side of the nozzle 13, and a dredging rod 14 corresponding to the injection hole 18 is fixedly connected to the pressing plate 15; a drain groove 17 is opened at the bottom of the nozzle 13, and a blocking plate 19 inserted into the drain groove 17 is fixedly connected to the end cover 6.

[0022] By providing a freely slidable end cover 6, the injection reaction box 4 and the nozzle can be quickly opened, and a clearing rod 14 is provided to directly clean the spray hole by pressing, which can solve the problem that the existing dry desulfurization agent injection device is inconvenient to clean the nozzle hole and easily causes secondary blockage.

[0023] A slide groove 20 is provided in the nozzle 13, and a sliding plate 21 fixedly connected to the pressing plate 15 is slidably arranged in the slide groove 20; a spring groove 22 is provided in the nozzle 13, and a movable rod 25 fixedly connected to the sliding plate 21 is provided in the spring groove 22. A compression spring 23 sleeved on the movable rod 25 is provided in the spring groove 22, and a limit plate 24 fixedly sleeved on the movable rod 25 is provided in the spring groove 22, and the limit plate 24 is located in the spring groove 22 near the slide groove 20.

[0024] The setting of the limiting plate 24 can prevent the sliding plate 21 from being separated from the sliding groove 20, and the setting of the compression spring 23 can generate a rebound force on the limiting plate 24, so that the pressing plate 15 can be reset after cleaning.

[0025] The number of the dredging rods 14 is the same as the number of the injection holes 18 , and a dredging groove 16 is provided on the pressing plate 15 .

[0026] The number of the dredging rods 14 is the same as that of the injection holes 18, so all the injection holes 18 can be cleaned at one time on the pressing plate 15. Meanwhile, the arrangement of the dredging grooves 16 can ensure that the atomized limestone sprayed from the injection holes 18 can pass through the pressing plate 15 normally and contact the smoke.

[0027] A motor 11 is provided on the bottom plate 1, and a screw rod 10 is fixedly connected to the output shaft of the motor 11; a moving plate 9 is threadedly connected to the screw rod 10, and a connecting tube 8 fixedly connected to the end cover 6 is fixedly connected to the moving plate 9. A limiting rod 12 passing through the moving plate 9 is fixedly connected to the bottom plate 1, and the moving plate 9 is slidably arranged relative to the limiting rod 12.

[0028] The setting of the limit rod 12 can limit the rotation of the movable plate 9, thereby converting the rotation of the screw rod 10 into the movement of the movable plate 9, and transmitting the movement to the end cover 6 through the connecting tube 8.

[0029] Principle of the utility model

[0030] When the injection device provided in the present application works normally, the injection equipment 3 sprays atomized limestone into the injection reaction box 4 through the nozzle 13, and the flue gas to be desulfurized enters the injection reaction box 4 from the air inlet pipe 7. After the two react in the injection reaction box 4, they flow out to the next processing equipment through the air outlet pipe 5, and are directly discharged after removing calcium sulfide or other dust impurities in the flue gas.

[0031] When it is necessary to clean the injection hole 18 of the nozzle 13, the desulfurization process is stopped; the motor 11 is started, and the end cover 6 and the blocking plate 19 move downward under the drive of the moving plate 9, and the injection reaction box 4 can be quickly and conveniently disassembled, and the blocking plate 19 no longer blocks the leakage groove 17; the pressing plate 15 is pressed, and the sliding plate 21 slides in the slide groove 20, and the limit plate 24 compresses the compression spring 23; the dredging rod 14 is inserted into the injection hole 18 to clear it, and the impurities or larger limestone particles that have been cleaned fall out of the nozzle 13 and the injection reaction box 4 through the leakage groove 17, so as to avoid impurities remaining in the nozzle 13 and causing secondary blockage. After cleaning, release the pressing plate 15, and under the action of the rebound force of the compression spring 23, the pressing plate 15 drives the dredging rod 14 to return to its original position to prepare for the next work. At the same time, the motor 11 is reversed, the moving plate 9 moves upward, the blocking plate 19 blocks the leakage groove 17, and the end cover 6 recloses the injection reaction box 4.

[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 desulfurization agent injection device suitable for a dry process, comprising an injection reaction box (4), an air inlet pipe (7) and an air outlet pipe (5) are arranged on the injection reaction box (4), and an injection device (3) is arranged on one side of the injection reaction box (4); characterized in that: The spray reaction box (4) is fixedly connected downwardly with a support leg (2) and a bottom plate (1); an L-shaped end cover (6) is arranged on one side of the spray reaction box (4), the L-shaped end cover (6) closes the spray reaction box (4), and the L-shaped end cover (6) is slidably arranged relative to the spray reaction box (4); a spray head (13) inserted into the spray reaction box (4) is arranged on the spray head (13), a spray hole (18) is provided on the spray head (13), a pressing plate (15) is slidably arranged on one side of the spray head (13), and a dredging rod (14) corresponding to the spray hole (18) is fixedly connected to the pressing plate (15); a drain groove (17) is provided at the bottom of the spray head (13), and a blocking plate (19) inserted into the drain groove (17) is fixedly connected to the end cover (6).

2. A desulfurization agent injection device suitable for a dry process according to claim 1, characterized in that: The nozzle (13) is provided with a slide groove (20), and a slide plate (21) fixedly connected to the pressing plate (15) is slidably arranged in the slide groove (20); the nozzle (13) is provided with a spring groove (22), and a movable rod (25) fixedly connected to the slide plate (21) is arranged in the spring groove (22).

3. A desulfurization agent injection device suitable for dry process according to claim 2, characterized in that: A compression spring (23) sleeved on the movable rod (25) is arranged in the spring groove (22), and a limit plate (24) fixedly sleeved on the movable rod (25) is arranged in the spring groove (22), and the limit plate (24) is located in the spring groove (22) near the slide groove (20).

4. A desulfurization agent injection device suitable for a dry process according to claim 1, characterized in that: The number of the dredging rods (14) is the same as the number of the injection holes (18), and a dredging groove (16) is provided on the pressing plate (15).

5. A desulfurization agent injection device suitable for dry process according to claim 1, characterized in that: A motor (11) is arranged on the bottom plate (1), and a screw rod (10) is fixedly connected to the output shaft of the motor (11); a movable plate (9) is threadedly connected to the screw rod (10), and a connecting tube (8) fixedly connected to the end cover (6) is fixedly connected to the movable plate (9).

6. A desulfurization agent injection device suitable for dry process according to claim 5, characterized in that: A limiting rod (12) passing through the movable plate (9) is fixedly connected to the bottom plate (1), and the movable plate (9) is slidably arranged relative to the limiting rod (12).

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