Internal ash deposition prevention device for dry desulfurization tower

Abstract

The utility model discloses an internal ash deposition prevention device for a dry desulfurization tower, which comprises an adjusting cylinder, an air outlet pipe and a flue pipe, and the opposite ends of the air outlet pipe and the flue pipe extend into the adjusting cylinder; the dust accumulation preventing mechanism comprises a rotating disc arranged in the adjusting cylinder, two penetrating openings are symmetrically and vertically formed in the rotating disc in a penetrating mode, fixing rings are fixedly connected to the inner walls of the two penetrating openings, and two guide rods are symmetrically arranged on each fixing ring in a penetrating mode; the lower ends of every two matched guide rods are jointly and fixedly connected with a filter screen, and the upper end of each filter screen is elastically connected with the lower end of the corresponding fixing ring through a plurality of springs. And a cleaning mechanism. The desulfurization tower has the advantages that disassembly operation is not needed during replacement, actual use is facilitated, the filtering part can be replaced during operation of the desulfurization tower, and the actual use adaptability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of desulfurization towers, in particular to a device for preventing dust accumulation inside a dry desulfurization tower. Background Art

[0002] Dry desulfurization, also known as dry flue gas desulfurization, refers to the use of powdered or granular absorbents, adsorbents or catalysts to remove sulfide-containing gases from flue gas. Its working principle is to add water to limestone powder to make a slurry as an absorbent and pump it into the absorption tower to fully contact and mix with the flue gas. The sulfur dioxide in the flue gas reacts with the calcium carbonate in the slurry and the air blown in from the bottom of the tower to form calcium sulfate. After the calcium sulfate reaches a certain saturation, it crystallizes to form dihydrate gypsum. The gypsum slurry discharged from the absorption tower is concentrated and dehydrated to make its water content less than 10%, and then it is conveyed to the gypsum storage silo by a conveyor for stacking. The flue gas after desulfurization passes through a demister to remove droplets, and then after being heated by a heat exchanger, it is discharged into the atmosphere through a chimney. The existing dry desulfurization method cannot be separated from the use of a desulfurization tower. After the desulfurization tower has been used for a long time, the dust in the flue gas is easily accumulated on the inner wall of the flue of the desulfurization tower, which can easily reduce the service life of the desulfurization tower.

[0003] The utility model patent with publication number CN218740920U discloses a device for preventing dust accumulation inside a dry desulfurization tower. The utility model relates to the technical field of desulfurization towers. The anti-dust accumulation device inside the dry desulfurization tower comprises a tower body, the top surface of the tower body is fixedly provided with an anti-dust mechanism, and the top surface of the anti-dust mechanism is fixedly connected to a smoke outlet pipe, a plurality of inspection platforms are fixedly connected to the outer surface of one side of the tower body, the bottom surfaces of a plurality of the inspection platforms are fixedly connected to a plurality of support rods, and the ends of a plurality of support rods away from the inspection platforms are fixedly connected to the outer surface of one side of the tower body, a plurality of top surfaces of the inspection platforms are fixedly connected to a protective frame, a ladder is fixedly provided on the outer surface of one side of the tower body, and a protective frame is fixedly connected to the outer surface of one side of the ladder, which solves the problem that after the existing desulfurization tower is used for a long time, dust in the flue gas is easily accumulated on the inner wall of the flue of the desulfurization tower, thereby reducing the service life of the desulfurization tower; however, in actual use, we found that when the above-mentioned device is used, the activated carbon is used for dust removal, and the actual effect is poor, and each time the filter part is replaced, the door body needs to be opened to take out the filter part and then put in the filter part, which is not only troublesome but also cannot be operated when the desulfurization tower is in operation. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a device for preventing dust accumulation inside a dry desulfurization tower.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A device for preventing dust accumulation inside a dry desulfurization tower comprises an adjusting cylinder, an air outlet pipe and a flue pipe, wherein the opposite ends of the air outlet pipe and the flue pipe extend into the adjusting cylinder; an anti-dust accumulation mechanism, wherein the anti-dust accumulation mechanism comprises a rotating disk arranged in the adjusting cylinder, wherein the rotating disk is symmetrically and vertically penetrated with two through holes, and the inner walls of the two through holes are fixedly connected with fixing rings, and each of the fixing rings is symmetrically penetrated with two guide rods, and the lower ends of every two matching guide rods are commonly fixedly connected with a filter screen, and the upper end of each filter screen is elastically connected to the lower end of the corresponding fixing ring through a plurality of springs; a cleaning mechanism, wherein the cleaning mechanism is used to clean the filter screen on the right side, and a motor is installed at the lower end of the adjusting cylinder, and the output shaft of the motor extends into the adjusting cylinder and is fixedly connected to the lower end of the rotating disk.

[0007] In order to better achieve the above-mentioned purpose, the utility model adopts a further technical solution: rubber rings are installed at the opposite ends of the air outlet pipe and the flue pipe.

[0008] In order to better achieve the above-mentioned purpose, the utility model adopts a further technical solution: the cleaning mechanism includes a high-pressure water pump installed on the upper end of the adjusting cylinder, the inner top of the adjusting cylinder is fixedly connected with a hollow disc, the water outlet end of the high-pressure water pump extends into the hollow disc, the inner bottom of the hollow disc is provided with a plurality of water spray holes, the inner bottom of the adjusting cylinder is provided with a collecting groove, the inner bottom of the collecting groove is connected with a drain pipe, the filter screen is made of iron alloy, and an annular electromagnet is installed in the hollow disc.

[0009] The advantages of the utility model are as follows: when the filter part needs to be replaced, it is only necessary to start the motor. Compared with the prior art, the overall operation is simpler, and the filter part can be replaced without disassembly. The overall usage scenario is wider and meets the actual usage needs. In addition, when the filter containing more dust is rotated to the right side, the filter can be vibrated back and forth through the use of a water pump and annular electromagnet, in combination with a spring and magnetic attraction, to further improve the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the structure of a device for preventing dust accumulation inside a dry desulfurization tower proposed by the utility model;

[0011] Figure 2 for Figure 1 Schematic cross-sectional view of ;

[0012] Figure 3 for Figure 2 Enlarged view of point A.

[0013] In the figure: 1 regulating cylinder, 2 air outlet pipe, 3 flue pipe, 4 high pressure water pump, 5 drain pipe, 6 motor, 7 rotating disk, 8 collecting box, 9 through-hole, 10 hollow disc, 11 water spray hole, 12 annular electromagnet, 13 fixing ring, 14 filter screen, 15 spring, 16 guide rod. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0015] Reference Figure 1-3 As shown, a device for preventing dust accumulation inside a dry desulfurization tower comprises an adjusting cylinder 1, an air outlet pipe 2 and a flue pipe 3, the air outlet pipe 2 is connected to the exhaust part of the desulfurization tower, the opposite ends of the air outlet pipe 2 and the flue pipe 3 extend into the adjusting cylinder 1, the opposite ends of the air outlet pipe 2 and the flue pipe 3 are installed with rubber rings, and also comprises an anti-dust accumulation mechanism, the anti-dust accumulation mechanism comprises a rotating disk 7 arranged in the adjusting cylinder 1, two through-holes 9 are symmetrically vertically penetrated on the rotating disk 7, and a fixing ring 13 is fixedly connected to the inner wall of the two through-holes 9, and two guide rods 16 are symmetrically penetrated on each fixing ring 13, and the lower ends of each two matching guide rods 16 are fixedly connected with a filter screen 14, and the upper end of each filter screen 14 is elastically connected to the lower end of the corresponding fixing ring 13 through a plurality of springs 15, and a motor 6 is installed at the lower end of the adjusting cylinder 1, and the output shaft of the motor 6 extends into the adjusting cylinder 1 and is fixedly connected to the lower end of the rotating disk 7.

[0016] It also includes a cleaning mechanism, which is used to clean the filter screen 14 on the right side. The cleaning mechanism includes a high-pressure water pump 4 installed on the upper end of the regulating cylinder 1, the water inlet end of the high-pressure water pump 4 is connected to an external water tank, a hollow disc 10 is fixedly connected to the inner top of the regulating cylinder 1, the water outlet end of the high-pressure water pump 4 extends into the hollow disc 10, and a plurality of water spray holes 11 are opened at the inner bottom of the hollow disc 10. A collecting tank 8 is provided at the inner bottom of the regulating cylinder 1, and a drain pipe 5 is connected to the inner bottom of the collecting tank 8. The other end of the drain pipe 5 is connected to an external waste water box. In order to improve the cleaning effect, the filter screen 14 is made of iron alloy, and an annular electromagnet 12 is installed in the hollow disc 10.

[0017] When the utility model is used, when the smoke body passes through the regulating cylinder 1, it will pass through the through-hole 9 on the left side and filter the dust through the filter screen 14. When the filter screen 14 has filtered out more dust, the motor 6 can be started. After the motor 6 rotates, it will drive the rotating disk 7 to rotate. The rotation of the rotating disk 7 will cause the filter screen 14 on the left to rotate to the right, and the filter screen 14 on the right to rotate to the left. The filter part can be replaced without disassembly. The overall usage scenario is wide and meets the actual usage needs. When the dirty filter screen 14 rotates to the right, the staff can start the high-pressure water pump 4. After the high-pressure water pump 4 is started, high-pressure water will be sprayed from the hollow disc 10. The high-pressure water will impact the filter screen 14, which will dredge and clean the filter screen 14. In this process, the annular electromagnet 12 can also be started intermittently to make it intermittently on and off. With the spring 15 and the magnetic attraction, the filter screen 14 can be shaken back and forth to further improve the cleaning effect.

Claims

1. A device for preventing dust accumulation inside a dry desulfurization tower, characterized in that: include: An adjusting cylinder (1), an air outlet pipe (2) and a flue pipe (3), wherein the opposite ends of the air outlet pipe (2) and the flue pipe (3) extend into the adjusting cylinder (1); an anti-ash accumulation mechanism, wherein the anti-ash accumulation mechanism comprises a rotating disk (7) arranged in the adjusting cylinder (1), wherein the rotating disk (7) is symmetrically and vertically penetrated with two through-holes (9), and the inner walls of the two through-holes (9) are fixedly connected with a fixing ring (13), and each of the fixing rings (13) is symmetrically penetrated with two guide rods (1 6), the lower ends of each of the two matching guide rods (16) are commonly fixedly connected to a filter screen (14), and the upper end of each filter screen (14) is elastically connected to the lower end of the corresponding fixing ring (13) through a plurality of springs (15); a cleaning mechanism, the cleaning mechanism is used to clean the filter screen (14) on the right side, and a motor (6) is installed at the lower end of the adjustment cylinder (1), and the output shaft of the motor (6) extends into the adjustment cylinder (1) and is fixedly connected to the lower end of the rotating disk (7).

2. The device for preventing dust accumulation inside a dry desulfurization tower according to claim 1, characterized in that: Rubber rings are installed at the opposite ends of the air outlet pipe (2) and the flue pipe (3).

3. The device for preventing dust accumulation inside a dry desulfurization tower according to claim 1, characterized in that: The cleaning mechanism comprises a high-pressure water pump (4) mounted on the upper end of an adjusting cylinder (1); a hollow disc (10) is fixedly connected to the inner top of the adjusting cylinder (1); a water outlet of the high-pressure water pump (4) extends into the hollow disc (10); a plurality of water spray holes (11) are provided at the inner bottom of the hollow disc (10); a collecting trough (8) is provided at the inner bottom of the adjusting cylinder (1); a drain pipe (5) is connected to the inner bottom of the collecting trough (8); the filter screen (14) is made of an iron alloy; and a ring-shaped electromagnet (12) is installed in the hollow disc (10).

Images