Flue gas desulfurization and denitrification tower dust removal device

Abstract

The utility model discloses a flue gas desulfurization and denitrification tower dust removal device, which relates to the technical field of flue gas dust removal and comprises a dust removal barrel, an annular connecting pipe and filter cotton, a water tank is fixedly arranged at the top of the dust removal barrel, and a first water pump is fixedly arranged on the outer wall of the dust removal barrel; a first connecting pipe is fixed to the first water pump, the other end of the first connecting pipe is fixedly connected with the water tank, and a fixing pipe is fixedly arranged on the first water pump. Through cooperative use of the annular connecting pipe, the atomizing spray head, the stirring rod, the stirring blades and the filter cotton, the device is simple in structure and convenient to use, can effectively remove dust from flue gas, reduces the influence of the subsequent desulfurization and denitrification process, and improves the desulfurization and denitrification efficiency through cooperative use of the circular frame, the fixed frame, the handle, the limiting groove, the spring and the right-angle limiting rod. When the dust removal device is used for a long time and the filter cotton needs to be replaced, the filter cotton can be replaced more conveniently and quickly.

Description

Technical Field

[0001] The utility model relates to the field of flue gas dust removal, in particular to a dust removal device for a flue gas desulfurization and denitration tower. Background Art

[0002] my country is a major coal consumer. The combustion of combustibles in the burner produces flue gas. Since the flue gas usually contains a large amount of nitrogen oxides NOx, sulfides SO2 and dust, which can easily harm human health, the flue gas must be desulfurized, denitrated and dust removed before discharge. The existing desulfurization, denitrification and dust removal systems generally include dust removal devices, denitrification reactors, desulfurization towers and chimneys. After the flue gas meets the emission requirements through denitrification, desulfurization and dust removal operations, it is discharged from the chimney.

[0003] The traditional desulfurization and denitrification tower dust removal device is complex and has high cost investment. It cannot meet the purpose of desulfurization, denitrification and dust removal of flue gas from coal combustion in a small area. When removing dust from the flue gas, the dust removal will not be thorough, which will affect the subsequent desulfurization and denitrification process and cannot achieve efficient desulfurization, denitrification and dust removal. In addition, after the dust removal device has been used for a long time, it is inconvenient to replace the filter cotton, which cannot meet people's demand for the use of the device. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a dust removal device for a flue gas desulfurization and denitration tower.

[0005] In order to solve the problems existing in the prior art, the utility model adopts the following technical solutions:

[0006] A dust removal device for a flue gas desulfurization and denitrification tower comprises a dust removal bucket, an annular connecting pipe, and filter cotton. A water tank is fixedly arranged on the top of the dust removal bucket, and a first water pump is fixedly arranged on the outer wall of the dust removal bucket; a first connecting pipe is fixedly arranged on the first water pump, and the other end of the first connecting pipe is fixedly connected to the water tank; a fixed pipe is fixedly arranged on the first water pump, an annular connecting pipe is arranged in the dust removal bucket, and the other end of the fixed pipe is fixedly connected to the annular connecting pipe, a plurality of atomizing nozzles are fixedly arranged at the bottom of the annular connecting pipe, a filter screen is fixedly arranged in the dust removal bucket, a stirring rod is rotatably arranged in the dust removal bucket, and a pair of fixedly arranged at the end of the stirring rod A stirring blade, a pair of brushes are fixedly arranged on the stirring rod, the top of the brush is in contact with the inner wall of the dust removal bucket, and the brushes are in contact with the surface of the filter screen. A drain port is fixedly arranged at the bottom of the outer wall of the dust removal bucket, a motor is fixedly arranged at the bottom of the dust removal bucket, and the output end of the motor is fixedly connected to the stirring rod. Filter cotton is arranged in the dust removal bucket, a second water pump is fixedly arranged outside the dust removal bucket, a second connecting pipe is fixedly arranged on the second water pump, and a filter head is fixedly arranged at the other end of the second connecting pipe, a filter is threadedly arranged on the top of the water tank, a hose is fixedly arranged on the second water pump, and the other end of the hose is connected to the filter.

[0007] Preferably, a circular frame is rotatably provided inside the dust removal bucket, a fixing ring is provided inside the circular frame, the fixing ring is fixedly connected to the filter cotton, a handle is fixedly provided on the fixing ring, a limiting groove is provided on the wall of the dust removal bucket, a spring is fixedly provided in the limiting groove, a right-angle limiting rod is slidably provided in the limiting groove, and the other end of the spring is fixedly connected to the right-angle limiting rod.

[0008] Preferably, an inspection door is rotatably provided on the outer wall of the dust removal barrel, a smoke inlet is provided at the bottom of the outer wall of the dust removal barrel, a smoke exhaust port is provided at the top of the outer wall of the dust removal barrel, and the filter head is located at the bottom of the dust removal barrel.

[0009] Preferably, the second connecting pipe passes through the dust removal barrel, and the filter cotton is located above the annular connecting pipe.

[0010] Preferably, the stirring rod passes through the dust removal barrel, and the stirring rod is located at the center of the dust removal barrel.

[0011] Preferably, a water stop valve is rotatably provided on the drain outlet, and the filter screen is located at the lower part of the smoke inlet.

[0012] Preferably, the stirring rod passes through the filter screen, and the annular connecting pipe is located in the center of the dust removal barrel.

[0013] Preferably, the right-angle limit rod passes through the limit groove, one end of the right-angle limit rod is a right-angled triangle, the circular frame is provided with a limit hole aligned with the right-angle limit rod, and the handle passes through the circular frame.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. In the utility model, the coordinated use of the annular connecting pipe, the atomizing nozzle, the stirring rod, the stirring blade and the filter cotton not only has a simple structure and is convenient to use, but also can effectively remove dust from the flue gas, reducing the impact of the subsequent desulfurization and denitrification process, thereby achieving efficient desulfurization, denitrification and dust removal;

[0016] 2. In the utility model, through the coordinated use of the circular frame, the fixed frame, the handle, the limit groove, the spring and the right-angle limit rod, when the filter cotton of the dust removal device needs to be replaced after long-term use, it can be replaced more conveniently and quickly, thus meeting people's needs for the use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the dust removal bucket of the utility model;

[0020] Figure 3 This is a schematic diagram of the position relationship between the first water pump and the atomizing nozzle of the utility model;

[0021] Figure 4 This is a schematic diagram of the position relationship between the filter cotton and the circular frame of the utility model;

[0022] Figure 5 For the utility model Figure 4 The enlarged schematic diagram at A in the middle;

[0023] Serial numbers in the figure: 1. Dust removal bucket; 11. Water tank; 12. First water pump; 13. First connecting pipe; 14. Fixed pipe; 15. Ring connecting pipe; 16. Atomizing nozzle; 17. Filter; 18. Stirring rod; 19. Stirring blade; 111. Brush; 112. Drain; 113. Motor; 114. Filter cotton; 115. Second water pump; 116. Second connecting pipe; 117. Filter head; 118. Filter; 119. Hose; 2. Round frame; 21. Fixed ring; 22. Handle; 23. Limiting groove; 24. Spring; 25. Right-angle limiting rod. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Example 1: This example provides a flue gas desulfurization and denitrification tower dust removal device, see Figure 1-5Specifically, it includes a dust removal bucket 1, an annular connecting pipe 15, and filter cotton 114. A water tank 11 is fixedly provided on the top of the dust removal bucket 1, and a first water pump 12 is fixedly provided on the outer wall of the dust removal bucket 1; a first connecting pipe 13 is fixed on the first water pump 12, and the other end of the first connecting pipe 13 is fixedly connected to the water tank 11, and a fixed pipe 14 is fixedly provided on the first water pump 12. An annular connecting pipe 15 is provided in the dust removal bucket 1, and the other end of the fixed pipe 14 is fixedly connected to the annular connecting pipe 15, and a plurality of atomizing nozzles 16 are fixedly provided at the bottom of the annular connecting pipe 15, a filter screen 17 is fixedly provided in the dust removal bucket 1, and a stirring rod 18 is rotatably provided in the dust removal bucket 1, and a pair of stirring blades 19 are fixedly provided at the end of the stirring rod 18, and a stirring rod 18 is fixedly provided. A pair of brushes 111 are provided, the tops of the brushes 111 are in contact with the inner wall of the dust removal bucket 1, and the brushes 111 are in contact with the surface of the filter screen 17. A drain port 112 is fixedly provided at the bottom of the outer wall of the dust removal bucket 1, a motor 113 is fixedly provided at the bottom of the dust removal bucket 1, and the output end of the motor 113 is fixedly connected to the stirring rod 18. A filter cotton 114 is provided in the dust removal bucket 1, and a second water pump 115 is fixedly provided outside the dust removal bucket 1, a second connecting pipe 116 is fixedly provided on the second water pump 115, and a filter head 117 is fixedly provided at the other end of the second connecting pipe 116, a filter 118 is threadedly provided on the top of the water tank 11, a hose 119 is fixedly provided on the second water pump 115, and the other end of the hose 119 is connected to the filter 118;

[0026] An inspection door is rotatably provided on the outer wall of the dust bucket 1, a smoke inlet is provided at the bottom of the outer wall of the dust bucket 1, a smoke exhaust port is provided at the top of the outer wall of the dust bucket 1, a filter head 117 is located at the bottom of the dust bucket 1, a second connecting pipe 116 penetrates the dust bucket 1, the filter cotton 114 is located above the annular connecting pipe 15, the stirring rod 18 penetrates the dust bucket 1, the stirring rod 18 is located at the center of the dust bucket 1, a water stop valve is rotatably provided on the drain outlet 112, the filter screen 17 is located at the lower part of the smoke inlet, the stirring rod 18 penetrates the filter screen 17, and the annular connecting pipe 15 is located at the center of the dust bucket 1.

[0027] In the specific implementation process, Figure 2 and Figure 3As shown, the first water pump 12 pumps water out of the water tank 11 through the first connecting pipe 13, and then injects it into the annular connecting pipe 15 through the fixed pipe 14, and sprays the water in the form of atomization through the atomizing nozzle 16. The motor 113 drives the stirring blade 19 and the brush 111 to rotate through the stirring rod 18, and injects the flue gas into the dust removal barrel 1 through the smoke inlet. After the flue gas enters the dust removal barrel 1, the flue gas and the water mist are fully mixed by the stirring of the stirring blade 19, and the flue gas will flow along the airflow of the stirring blade 19, so that the dust in the flue gas contacts with the water mist. The dust is adsorbed on the water mist and flows into the bottom of the dust removal barrel 1 through the filter screen 17. The flue gas passing through the water mist passes through the filter cotton 114 to completely remove the dust in the flue gas, and then is discharged from the smoke exhaust port for the subsequent desulfurization and denitrification process. The rotation of the brush 111 can scrub the surface of the filter 17 to prevent dust from clogging the mesh of the filter 17. When there is a lot of sewage at the bottom of the dust removal barrel 1, the second water pump 115 draws out the sewage at the bottom of the dust removal barrel 1 through the filter head 117 and the second connecting pipe 116, and then injects it into the filter 118 through the hose 119. The water passing through the filter 118 flows into the water tank 11 for reuse. The filter head 117 and the filter 118 can filter out impurities in the dust-removed water to prevent debris from clogging the atomizing nozzle 16. The coordinated use of the annular connecting pipe 15, the atomizing nozzle 16, the stirring rod 18, the stirring blades 19 and the filter cotton 114 not only has a simple structure and is convenient to use, but can also effectively remove dust from the flue gas, reducing the impact of subsequent desulfurization and denitrification processes.

[0028] Embodiment 2: In embodiment 1, there is still the problem of inconvenience in replacing the filter cotton, so based on embodiment 1, this embodiment also includes:

[0029] A circular frame 2 is rotatably provided in the dust removal bucket 1, a fixing ring 21 is provided in the circular frame 2, the fixing ring 21 is fixedly connected to the filter cotton 114, a handle 22 is fixedly provided on the fixing ring 21, a limiting groove 23 is provided on the wall of the dust removal bucket 1, a spring 24 is fixedly provided in the limiting groove 23, a right-angle limiting rod 25 is slidably provided in the limiting groove 23, the other end of the spring 24 is fixedly connected to the right-angle limiting rod 25, the right-angle limiting rod 25 passes through the limiting groove 23, one end of the right-angle limiting rod 25 is a right-angled triangle, a limiting hole corresponding to the right-angle limiting rod 25 is provided on the circular frame 2, and the handle 22 passes through the circular frame 2.

[0030] In the specific implementation process, Figure 4 and Figure 5As shown, when the filter cotton 114 in the dust removal bucket 1 is used for a long time, the right-angle limit rod 25 is lifted upward to cancel the limit on the circular frame 2, and the handle 22 is pulled outward. The handle 22 drives the circular frame 2 to rotate out of the dust removal bucket 1, and the handle 22 is lifted upward. The handle 22 drives the filter cotton 114 through the fixing ring 21 to cancel the fixing ring 21 upward, and the filter cotton 114 in the fixing ring 21 is replaced. After replacement, it is put back on the circular frame 2, and then the circular frame 2 is rotated back into the dust removal bucket 1. The spring 24 pushes the right-angle limit rod 25 to insert into the limiting hole on the circular frame 2 to complete the replacement of the filter cotton 114. Through the coordinated use of the circular frame 2, the fixed frame 21, the handle 22, the limiting groove 23, the spring 24 and the right-angle limit rod 25, when the dust removal device needs to replace the filter cotton 114 after a long time of use, it can be replaced more conveniently and quickly.

[0031] Specifically, the working principle and operation method of the utility model are as follows:

[0032] Step 1, first start the first water pump 12, the first water pump 12 pumps out the water in the water tank 11 through the first connecting pipe 13, and then injects it into the annular connecting pipe 15 through the fixed pipe 14, and sprays the water in the form of atomization through the atomizing nozzle 16, and starts the motor 113. The motor 113 drives the stirring blade 19 and the brush 111 to rotate through the stirring rod 18, and injects the smoke into the dust removal barrel 1 through the smoke inlet. After the smoke enters the dust removal barrel 1, the smoke and water mist are fully mixed through the stirring of the stirring blade 19, and the smoke will flow along the airflow of the stirring blade 19, so that the dust in the smoke is in contact with the water mist. The dust is adsorbed on the water mist and flows into the bottom of the dust removal barrel 1 through the filter 17. The flue gas then passes through the filter cotton 114 to completely remove the dust in the flue gas, and then it is discharged from the smoke outlet for the subsequent desulfurization and denitrification process. The brush 111 can rotate to scrub the surface of the filter 17 to prevent dust from clogging the mesh of the filter 17. When there is a lot of sewage at the bottom of the dust removal barrel 1, the second water pump 115 is started. The second water pump 115 extracts the sewage at the bottom of the dust removal barrel 1 through the filter head 117 and the second connecting pipe 116, and then injects it into the filter 118 through the hose 119. The water passing through the filter 118 flows into the water tank 11 for reuse. The filter head 117 and the filter 118 can filter out impurities in the dust-removed water to prevent debris from clogging the atomizing nozzle 16.

[0033] Step 2: When the filter cotton 114 in the dust removal bucket 1 is used for a long time, lift the right-angle limit rod 25 upward to cancel the limit on the circular frame 2, pull the handle 22 outward, and the handle 22 drives the circular frame 2 to rotate out of the dust removal bucket 1, lift the handle 22 upward, and the handle 22 drives the filter cotton 114 upward through the fixing ring 21 to cancel the fixing ring 21, replace the filter cotton 114 in the fixing ring 21, put it back on the circular frame 2 after replacement, and then rotate the circular frame 2 back into the dust removal bucket 1, and the spring 24 pushes the right-angle limit rod 25 to insert into the limit hole on the circular frame 2, and the filter cotton 114 is replaced;

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A dust removal device for a flue gas desulfurization and denitrification tower, comprising a dust removal barrel (1), an annular connecting pipe (15), and filter cotton (114), characterized in that: A water tank (11) is fixedly provided on the top of the dust removal bucket (1), and a first water pump (12) is fixedly provided on the outer wall of the dust removal bucket (1); a first connecting pipe (13) is fixedly provided on the first water pump (12), and the other end of the first connecting pipe (13) is fixedly connected to the water tank (11); a fixed pipe (14) is fixedly provided on the first water pump (12); an annular connecting pipe (15) is provided in the dust removal bucket (1), and the other end of the fixed pipe (14) is fixedly connected to the annular connecting pipe (15); a plurality of atomizing nozzles (16) are fixedly provided at the bottom of the annular connecting pipe (15); a filter screen (17) is fixedly provided in the dust removal bucket (1); a stirring rod (18) is rotatably provided in the dust removal bucket (1), and a pair of stirring blades (19) are fixedly provided at the end of the stirring rod (18); a pair of brushes (111) are fixedly provided on the stirring rod (18), and the brushes (112) are fixedly provided on the stirring rod (18); The top of the brush (111) fits with the inner wall of the dust removal bucket (1), and the brushes (111) fit with the surface of the filter (17). A drain port (112) is fixedly provided at the bottom of the outer wall of the dust removal bucket (1). A motor (113) is fixedly provided at the bottom of the dust removal bucket (1), and the output end of the motor (113) is fixedly connected to the stirring rod (18). Filter cotton (114) is provided inside the dust removal bucket (1). A second water pump (115) is fixedly provided outside the dust removal bucket (1), and a second connecting pipe (116) is fixedly provided on the second water pump (115). A filter head (117) is fixedly provided at the other end of the second connecting pipe (116). A filter (118) is threadedly provided on the top of the water tank (11), and a hose (119) is fixedly provided on the second water pump (115). The other end of the hose (119) is connected to the filter (118).

2. A dust removal device for flue gas desulfurization and denitrification tower according to claim 1, characterized in that: A circular frame (2) is rotatably arranged in the dust removal bucket (1), a fixing ring (21) is arranged in the circular frame (2), the fixing ring (21) is fixedly connected to the filter cotton (114), a handle (22) is fixedly arranged on the fixing ring (21), a limiting groove (23) is provided on the wall of the dust removal bucket (1), a spring (24) is fixedly arranged in the limiting groove (23), a right-angle limiting rod (25) is slidably arranged in the limiting groove (23), and the other end of the spring (24) is fixedly connected to the right-angle limiting rod (25).

3. A dust removal device for flue gas desulfurization and denitrification tower according to claim 1, characterized in that: The outer wall of the dust removal barrel (1) is rotatably provided with an inspection door, the bottom of the outer wall of the dust removal barrel (1) is provided with a smoke inlet, the top of the outer wall of the dust removal barrel (1) is provided with a smoke exhaust port, and the filter head (117) is located at the inner bottom of the dust removal barrel (1).

4. A dust removal device for flue gas desulfurization and denitrification tower according to claim 1, characterized in that: The second connecting pipe (116) passes through the dust removal barrel (1), and the filter cotton (114) is located above the annular connecting pipe (15).

5. A dust removal device for flue gas desulfurization and denitrification tower according to claim 1, characterized in that: The stirring rod (18) passes through the dust removal barrel (1), and the stirring rod (18) is located at the center of the dust removal barrel (1).

6. A dust removal device for flue gas desulfurization and denitrification tower according to claim 1, characterized in that: A water stop valve is rotatably provided on the drainage port (112), and the filter screen (17) is located at the lower part of the smoke inlet.

7. A dust removal device for flue gas desulfurization and denitrification tower according to claim 1, characterized in that: The stirring rod (18) passes through the filter screen (17), and the annular connecting pipe (15) is located at the center of the dust removal barrel (1).

8. A dust removal device for flue gas desulfurization and denitrification tower according to claim 2, characterized in that: The right-angled limiting rod (25) passes through the limiting groove (23), one end of the right-angled limiting rod (25) is in the form of a right-angled triangle, the circular frame (2) is provided with a limiting hole aligned with the right-angled limiting rod (25), and the handle (22) passes through the circular frame (2).

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