Dust removal and noise reduction device for converter flue

Abstract

The utility model relates to a dust removal and noise reduction device for a converter flue, which is characterized in that a front dust removal device is arranged at the inlet end of a flue body, a noise reduction device is arranged at the flue body, and the outlet end of the flue body is fixedly communicated with the inlet end of an air blower. The outlet end of the air blower is fixedly communicated with the inlet end of an electrostatic dust collector, and the outlet end of the electrostatic dust collector is fixedly communicated with the inlet end of a discharge pipe; the front dust removal device comprises a smoke inlet pipe located on the outer side of the flue body, the outlet end of the smoke inlet pipe is fixedly communicated with the inlet end of a disc-shaped pipe, the outlet end of the disc-shaped pipe is fixedly communicated with the inlet end of a smoke guide pipe, the inner wall of the disc-shaped pipe is fixedly connected with a plurality of evenly-distributed installation blocks, and each installation block is fixedly connected with an attachment plate. The outer edge of the rotating shaft is fixedly connected with a pull rope, the pull rope is fixedly connected with a rubber ball, the front end of the disc-shaped pipe is fixedly connected with a motor used for driving the rotating shaft, and a cigarette ash collecting device is arranged on the lower edge of the disc-shaped pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of converter flue auxiliary devices, in particular to a dust removal and noise reduction device for a converter flue. Background Art

[0002] The converter flue is one of the main supporting equipment for converter steelmaking. When working, the equipment must collect high-temperature flue gas to the maximum extent and needs to withstand the highest furnace gas temperature and drastic and frequent temperature changes. The high-temperature flue gas will vibrate when transmitted in the converter flue, thereby emitting noise. If noise reduction treatment is not performed, the production environment will be seriously affected. In addition, during the process of conveying flue gas, smoke dust will gradually adhere to the inner wall of the converter flue. As the smoke dust accumulates, the subsequent work of the converter flue will be affected. For this reason, the utility model proposes a dust removal and noise reduction device for a converter flue to solve the above-mentioned problems. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a dust removal and noise reduction device for a converter flue, and the technical solution to the problem is to include a flue body, characterized in that a front dust removal device is arranged at the inlet end of the flue body, a noise reduction device is arranged at the flue body, the outlet end of the flue body is fixedly connected to the inlet end of the blower, the outlet end of the blower is fixedly connected to the inlet end of the electrostatic precipitator, and the outlet end of the electrostatic precipitator is fixedly connected to the inlet end of the discharge pipe;

[0004] The front dust removal device includes a smoke inlet pipe located on the outside of the flue body, the outlet end of the smoke inlet pipe is fixedly connected to the inlet end of the disc pipe, the outlet end of the disc pipe is fixedly connected to the inlet end of the smoke guide pipe, the outlet end of the smoke guide pipe is fixedly connected to the inlet end of the flue body, the inner wall of the disc pipe is fixedly connected to a plurality of evenly distributed mounting blocks, each of the mounting blocks is fixedly connected to an attachment plate, the inner wall of the disc pipe is rotatably connected to a rotating shaft arranged in the longitudinal direction, the outer edge of the rotating shaft is fixedly connected to a pull rope, the free end of the pull rope is fixedly connected to a leather ball, the front end of the disc pipe is fixedly connected to a motor for driving the rotating shaft, and a smoke ash collection device is arranged at the lower edge of the disc pipe.

[0005] Preferably, the ash collecting device comprises a collecting pipe fixedly connected to the lower part of the disc-shaped pipe, and an end cap is threadedly connected to the lower end of the collecting pipe.

[0006] Preferably, the noise reduction device includes a plurality of reversing plates fixedly connected to the inner wall of the flue body, the reversing plates are arranged at equal intervals and staggered, a plurality of evenly distributed sound-absorbing pits are opened at the left end of each of the reversing plates, the outside of the flue body is wrapped with sound insulation cotton, and the outside of the sound insulation cotton is wrapped with an insulation layer of rock wool.

[0007] The beneficial effects of the utility model are:

[0008] 1. When the utility model is in use, the front dust removal device provided can process the smoke entering the flue body, thereby removing a large amount of smoke contained therein, greatly reducing the influence of smoke attachment on the flue body. The attachment plates in the front dust removal device are evenly distributed on the upper part of the inner wall of the disc tube, which can block the smoke and increase the residence time of the smoke in the disc tube, thereby facilitating the attachment of smoke in the smoke to the attachment plates. When it is necessary to clean the smoke on the attachment plates, it is only necessary to start the motor to drive the rotating shaft to rotate, and then the rotating shaft will drive the ball to rotate and hit each attachment plate, and then the smoke will scatter from the attachment plate and fall to the collection device for collection, so as to facilitate the treatment of the smoke.

[0009] 2. The noise reduction device can increase the residence time of smoke in the flue body through the reversing baffle, and when the smoke flows through the reversing baffle, the smoke will contact the pit wall of the sound-absorbing pit of the reversing baffle, thereby reflecting the noise and reducing the energy of the noise. Furthermore, the sound insulation cotton on the outer wall of the flue body can further isolate the noise generated by the flow of smoke. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a stereoscopic view of the utility model from the first perspective.

[0011] Figure 2 It is a partial front sectional view of the utility model.

[0012] Figure 3 For this utility model Figure 2 A large picture of area A in the middle.

[0013] Figure 4 This is a partial three-dimensional cross-sectional view from a second viewing angle of the utility model.

[0014] Figure 5 It is the front view of the utility model.

[0015] Reference numerals

[0016] 1. Flue body, 2. Front dust removal device, 3. Blower, 4. Electrostatic precipitator, 5. Discharge pipe, 6. Smoke inlet pipe, 7. Coil pipe, 8. Smoke guide pipe, 9. Mounting block, 10. Attachment plate, 11. Rotating shaft, 12. Pull rope, 13. Ball, 14. Motor, 15. Collecting pipe, 16. End cover, 17. Reversing plate, 18. Sound-absorbing pit, 19. Sound insulation cotton, 20. Insulation layer. DETAILED DESCRIPTION

[0017] The following is combined with Figure 1-5 The specific implementation methods of the utility model are further described in detail.

[0018] Embodiment 1, the technical solution is that when the utility model is in use, the flue gas enters the disc pipe 7 of the front dust removal device 2 through the smoke inlet pipe 6 for dust removal, then flows into the flue body 1 for noise reduction, and then passes through the electrostatic precipitator 4 and the discharge pipe 5 in sequence under the action of the blower 3. The flue body 1 is the converter flue, and the front dust removal device 2 can process the flue gas entering the flue body 1, and then remove a large amount of smoke contained therein, which greatly reduces the influence of smoke adhesion on the flue body 1. The attachment plates 10 in the front dust removal device 2 are evenly distributed on the upper part of the inner wall of the disc tube 7, which can block the smoke and increase the residence time of the smoke in the disc tube 7, so as to facilitate the smoke dust in the smoke to adhere to the attachment plates 10. When it is necessary to clean the smoke dust on the attachment plates 10, it is only necessary to start the motor 14 to drive the rotating shaft 11 to rotate, and then the rotating shaft 11 will drive the ball 13 to rotate and hit each attachment plate 10, and then the smoke dust will be scattered from the attachment plate 10 and fall to the collection device for collection, so as to facilitate the treatment of the smoke dust. The noise reduction device provided can increase the residence time of the smoke in the flue body 1 through the reversing baffle, and when the smoke flows through the reversing baffle, the smoke will contact the pit wall of the sound-absorbing pit 18 of the reversing baffle, thereby reflecting the noise and reducing the energy of the noise. Furthermore, the sound insulation cotton 19 on the outer wall of the flue body 1 can further isolate the noise generated by the flow of smoke. Under the action of the blower 3, the flue gas in the flue body 1 that has undergone dust removal and noise reduction treatment can flow to the electrostatic precipitator 4 for further dust removal treatment of the flue dust, and then the flue gas will flow from the electrostatic precipitator 4 to the exhaust pipe 5 for subsequent treatment.

[0019] Embodiment 2, based on embodiment 1, specifically, the flue gas enters the disc tube 7 of the front dust removal device 2 through the smoke inlet pipe 6, and the upper part of the inner wall of the disc tube 7 is evenly arranged with a plurality of attachment plates 10 through the mounting block 9. The attachment plates 10 increase the residence time of the flue gas in the disc tube 7, and a large amount of smoke dust in the flue gas will be attached to the attachment plates 10, and a small part will be attached to the inner wall of the disc tube 7. In order to ensure the normal use of the front dust removal device 2, it is necessary to start the motor 14 regularly to facilitate the treatment of the attached smoke dust. Specifically: the motor 14 starts to drive the rotating shaft 11 to rotate, and the rotation of the rotating shaft 11 will drive the ball 13 to rotate through the pull rope 12. During the rotation of the ball 13, it will hit each attachment plate 10, so that the attachment plate 10 vibrates and drives the disc tube 7 to vibrate. Under the action of vibration, the smoke dust on the attachment plate 10 and the inner wall of the disc tube 7 will loosely fall into the collection tube 15 of the collection device, and the dust in the collection tube 15 can be cleaned out by opening the end cover 16.

[0020] Embodiment 3, on the basis of embodiment 2, the flue gas in the disc tube 7 enters the flue body 1 through the smoke guide pipe 8, and a plurality of reversing plates 17 are arranged at equal intervals in the flue body 1. The blocking effect of the reversing plates 17 increases the residence time of the flue gas in the flue body 1, so as to reduce the noise of the flue gas. The energy of the sound waves generated by the flue gas is weakened under the blocking effect of the reversing plates 17, and a sound-absorbing pit 18 is arranged on the left end face of each reversing plate 17. The sound waves hitting the sound-absorbing pit 18 will be reflected on the pit wall, further reducing the energy of the sound waves, that is, reducing the noise. At the same time, the outside of the flue body 1 is wrapped with sound insulation cotton 19 to reduce the impact of noise on the outside, and a heat insulation layer 20 made of rock wool is arranged on the outside of the sound insulation cotton 19 to avoid burns caused by excessive external temperature. For the convenience of drawing, the sound-absorbing pit 18 is only shown on the leftmost reversing plate 17 in the attached drawings of the specification.

Claims

1. A dust removal and noise reduction device for a converter flue, comprising a flue body (1), characterized in that: The inlet end of the flue body (1) is provided with a front dust removal device (2), the flue body (1) is provided with a noise reduction device, the outlet end of the flue body (1) is fixedly connected to the inlet end of a blower (3), the outlet end of the blower (3) is fixedly connected to the inlet end of an electrostatic precipitator (4), and the outlet end of the electrostatic precipitator (4) is fixedly connected to the inlet end of an exhaust pipe (5); The front dust removal device (2) comprises a smoke inlet pipe (6) located outside the flue body (1); the outlet end of the smoke inlet pipe (6) is fixedly connected to the inlet end of a disc pipe (7); the outlet end of the disc pipe (7) is fixedly connected to the inlet end of a smoke guide pipe (8); the outlet end of the smoke guide pipe (8) is fixedly connected to the inlet end of the flue body (1); the inner wall of the disc pipe (7) is fixedly connected to a plurality of evenly distributed mounting blocks (9); each mounting block (9) is fixedly connected to an attachment plate (10); the inner wall of the disc pipe (7) is rotatably connected to a rotating shaft (11) arranged in the longitudinal direction; the outer edge of the rotating shaft (11) is fixedly connected to a pull rope (12); the free end of the pull rope (12) is fixedly connected to a leather ball (13); the front end of the disc pipe (7) is fixedly connected to a motor (14) for driving the rotating shaft (11); and a smoke ash collection device is arranged at the lower edge of the disc pipe (7).

2. The dust removal and noise reduction device for converter flue according to claim 1, characterized in that: The soot collecting device comprises a collecting pipe (15) fixedly connected to the lower part of the disc-shaped pipe (7), and an end cap (16) is threadedly connected to the lower end of the collecting pipe (15).

3. The dust removal and noise reduction device for converter flue according to claim 1, characterized in that: The noise reduction device comprises a plurality of reversing plates (17) fixedly connected to the inner wall of a flue body (1), the reversing plates (17) being arranged at equal intervals and staggered, a plurality of evenly distributed sound absorbing pits (18) being provided at the left end of each of the reversing plates (17), the flue body (1) being wrapped with sound insulation cotton (19) on the outside, and the sound insulation cotton (19) being wrapped with a thermal insulation layer (20) made of rock wool on the outside.

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