Activated carbon tail gas dry desulfurization device

Abstract

The utility model provides an activated carbon tail gas dry desulfurization device which comprises a bag type dust collector and a dry desulfurization device which are connected through a pipeline, the dry desulfurization device comprises a spraying pipe arranged in a shell of the dry desulfurization device, a nozzle is arranged on the spraying pipe, a filter screen is arranged above the spraying pipe and fixedly connected with the shell, a rotating shaft penetrates through the filter screen, a cleaning plate used for cleaning the filter screen is arranged below the filter screen, and the cleaning plate is fixedly connected with the rotating shaft. According to the dry desulphurization device, the filter screen is arranged in the dry desulphurization device to block part of dust particles entering the dry desulphurization device, the inner wall of the shell and the filter screen are convenient to clean by arranging the scraping plate and the cleaning plate, and the labor of workers is reduced; the spoiler is arranged, so that the flue gas and the lime powder are fully reacted, and sulfur dioxide in the flue gas is removed.

Description

Technical Field

[0001] The present application relates to the technical field of desulfurization equipment, and more specifically, to an activated carbon tail gas dry desulfurization device. Background Art

[0002] Flue gas dry desulfurization is an efficient and energy-saving air pollution control technology, which is mainly used to remove sulfur dioxide from industrial flue gas to achieve the purpose of environmental protection and energy conservation and emission reduction. The flue gas coming out of the carbonization furnace passes through the dry desulfurization device and then enters the bag filter and the desulfurization tower, but some dust particles still enter the dry desulfurization device, so the dry desulfurization device needs to be equipped with a filter. After the dry desulfurization device has been used for a period of time, some solid particles are easy to adhere to the inner wall of the shell and the filter. Excessive attachment will lead to poor filtering effect of the filter. Excessive accumulation of debris on the inner wall of the shell will affect the desulfurization efficiency of the device for flue gas. Therefore, it is necessary to regularly clean the filter and impurities. Now it is usually cleaned manually, which is not convenient for cleaning the shell; in the dry desulfurization device, the efficiency of combining flue gas and absorption slurry is low. When the existing absorption slurry reacts with sulfur dioxide, it is difficult for the absorption slurry to fully react with sulfur dioxide in the flue gas. Utility Model Content

[0003] The utility model provides an activated carbon tail gas dry desulfurization device, which blocks some dust particles entering the dry desulfurization device by arranging a filter screen in the dry desulfurization device to prevent them from being discharged into the air, and arranges a scraper and a cleaning plate to facilitate cleaning of the inner wall of the shell and the filter screen, thereby reducing the labor of workers; and arranges a spoiler to allow the flue gas to fully react with the absorption slurry to remove the sulfur dioxide in the flue gas.

[0004] The utility model is realized through the following technical solutions.

[0005] An activated carbon tail gas dry desulfurization device comprises: a bag dust collector and a dry desulfurization device, wherein the bag dust collector and the dry desulfurization device are connected through a pipeline; the dry desulfurization device comprises: a spray pipe arranged in a shell of the dry desulfurization device, a nozzle is arranged on the spray pipe, a motor is arranged on the top of the shell, the power output end of the motor is connected to a rotating shaft, and a scraper is fixedly arranged on the rotating shaft; a filter screen is arranged above the spray pipe, the filter screen is fixedly connected to the shell, the rotating shaft passes through the filter screen, a cleaning plate for cleaning the filter screen is arranged below the filter screen, and the cleaning plate is fixedly connected to the rotating shaft.

[0006] A filter is set in the dry desulfurization device to block some dust particles entering the dry desulfurization device and prevent them from being discharged into the air. If the filter is not cleaned for a long time, the desulfurization efficiency of the flue gas will be affected. The motor drives the scraper and the cleaning plate to clean the inner wall of the shell and the filter, which is convenient for cleaning the inner wall of the shell and the filter, reducing the labor of workers and improving the flue gas desulfurization efficiency.

[0007] In a further technical solution, in order to allow the flue gas and the absorption slurry to react fully, a spoiler is provided on the rotating shaft, and a number of microholes are provided on the spoiler at equal intervals.

[0008] The function of the spoiler is to allow the flue gas to fully react with the absorption slurry and remove the sulfur dioxide in the flue gas. A number of microholes are arranged at equal intervals on the spoiler to accelerate the diffusion of the flue gas.

[0009] Furthermore, in order to facilitate the recycling and cleaning of debris, a recycling bin is provided at the bottom of the shell, the recycling bin is slidably connected to the shell, a fixing plate is fixedly provided on the recycling bin, and the fixing plate is connected to the shell by bolts.

[0010] The debris and dust cleaned by the scraper and the cleaning plate will fall into the recovery bin. The bolts of the fixing plate and the shell can be unscrewed and the recovery bin can be pulled out for cleaning.

[0011] Furthermore, in order to prevent smoke from leaking out of the shell, a sealing ring is provided on the recovery bin.

[0012] Furthermore, in order to make the absorption slurry spray evenly, the spray pipes are distributed in a ring shape in the shell, and the nozzles are arranged at equal intervals on the spray pipes.

[0013] Furthermore, in order to facilitate cleaning of the inner wall of the shell and the filter screen, nylon corrosion-resistant brushes are provided on the cleaning plate and the scraper.

[0014] The technical effects of the utility model are:

[0015] The present application sets a filter inside the dry desulfurization device to block some dust particles entering the dry desulfurization device, thereby further preventing dust from being discharged into the air and causing air pollution; a scraper and a cleaning plate are set to facilitate the cleaning of the inner wall of the shell and the filter, thereby reducing the labor intensity of the staff and improving the desulfurization efficiency; a spoiler is set to allow the flue gas to fully react with the absorption slurry, thereby improving the combination efficiency of the flue gas and the absorption slurry. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the utility model dry desulfurization device;

[0017] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the utility model dry desulfurization device;

[0019] Figure 4 This is a schematic diagram of taking out the recycling bin of the utility model;

[0020] In the figure: 1. Bag filter; 2. Dry desulfurization device; 3. Shell; 4. Spray pipe; 5. Nozzle; 6. Motor; 7. Rotating shaft; 8. Scraper; 9. Filter; 10. Cleaning plate; 11. Spoiler; 12. Micropores; 13. Recovery bin; 14. Fixed plate; 15. Sealing ring; 16. Nylon corrosion-resistant brush; 17. Activation furnace; 18. Air inlet; 19. Injection device; 20. Air outlet. DETAILED DESCRIPTION

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other technical solutions can be obtained based on the provided drawings without paying creative work.

[0022] Example 1

[0023] Combination Figure 1 to Figure 3 The utility model is an activated carbon tail gas dry desulfurization device, comprising: a bag filter 1, a dry desulfurization device 2, the bag filter 1 and the dry desulfurization device 2 are connected by a pipeline; the dry desulfurization device 2 comprises: a spray pipe 4 arranged in a shell 3 of the dry desulfurization device 2, a nozzle 5 is arranged on the spray pipe 4, a motor 6 is arranged on the top of the shell 3, the power output end of the motor 6 is connected to the rotating shaft 7, and a scraper 8 is fixedly arranged on the rotating shaft 7; a filter screen 9 is arranged above the spray pipe 4, the filter screen 9 is fixedly connected to the shell 3, the rotating shaft 7 passes through the filter screen 9, a cleaning plate 10 for cleaning the filter screen 9 is arranged below the filter screen 9, the cleaning plate 10 is fixedly connected to the rotating shaft 7, a spoiler 11 is arranged on the rotating shaft 7, and a plurality of micropores 12 are evenly spaced on the spoiler 11.

[0024] During the implementation process, the flue gas from the activation furnace 17 is transported to the bag filter 1, and the bag filter 1 filters the large particles and dust contained in the flue gas to prevent the large particles and dust from being discharged into the atmosphere. The flue gas transported through the bag filter 1 reaches the dry flue gas desulfurization device 2 and enters from the air inlet 18 of the dry flue gas desulfurization device 2. Quicklime and water are mixed in a certain ratio to form an absorption slurry. The absorption slurry enters the spray pipe 4 through the spray device 19, and the absorption slurry is sprayed into the housing 3 of the dry flue gas desulfurization device 2 through the nozzle 5 on the spray pipe 4. The power output end of the motor 6 drives the scraper 8 on the rotating shaft 7, The cleaning plate 10 and the spoiler 11 rotate, and the scraper 8 and the cleaning plate 10 are convenient for cleaning the inner wall of the shell 3 and the filter screen 9 to prevent the filter screen 9 from being blocked and affecting the desulfurization efficiency, thereby reducing the labor of workers. The spoiler 11 is provided with a number of micropores 12 at equal intervals on the spoiler 11 to accelerate the diffusion of the flue gas in order to make the flue gas fully react with the absorption slurry and remove the sulfur dioxide in the flue gas. The desulfurized gas passes through the filter screen 9 and is discharged from the air outlet 20 of the dry desulfurization device 2. The function of the filter screen 9 is to prevent the flue gas passing through the bag filter 1 from still containing a small amount of dust particles, and to prevent it from being discharged into the air and causing air pollution.

[0025] Example 2

[0026] Combination Figure 4 On the basis of the first embodiment, a recovery bin 13 is provided at the bottom of the shell 3, the recovery bin 13 is slidably connected to the shell 3, a fixing plate 14 is fixedly provided on the recovery bin 13, the fixing plate 14 is connected to the shell 3 by bolts, and a sealing ring 15 is provided on the recovery bin 13.

[0027] During the implementation process, after cleaning by the scraper 8 and the cleaning plate 10, impurities and dust on the inner wall of the shell 3 and the filter screen 9 will accumulate in the recovery bin 13. The bolts of the fixing plate 14 and the shell 3 can be unscrewed, and the recovery bin 13 can be pulled out for cleaning, which is convenient for cleaning the recovery bin 13. The sealing ring 15 provided on the recovery bin 13 is to prevent the smoke from leaking out of the shell and polluting the air.

[0028] Example 3

[0029] Combination Figure 3 The spray pipes 4 are distributed in a ring shape in the shell 3 , the nozzles 5 are arranged at equal intervals on the spray pipes 4 , and the cleaning plate 10 and the scraper 8 are both provided with nylon corrosion-resistant brushes 16 .

[0030] During the implementation process, the spray pipes 4 are distributed in a ring shape and the nozzles 5 are arranged at equal intervals on the spray pipes 4. In order to expand the spraying range of the absorption slurry and make the absorption slurry sprayed evenly, the nylon corrosion-resistant brushes 16 arranged on the cleaning plate 10 and the scraper 8 are convenient for cleaning the debris on the inner wall of the shell 3 and the dust on the filter 9.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solution recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solution to deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. An activated carbon tail gas dry desulfurization device, It is characterized in that include: A bag filter (1) and a dry desulfurization device (2), wherein the bag filter (1) and the dry desulfurization device (2) are connected via a pipeline; The dry desulfurization device (2) comprises: a spray pipe (4) arranged in a shell (3) of the dry desulfurization device (2), a nozzle (5) being arranged on the spray pipe (4), a motor (6) being arranged on the top of the shell (3), a power output end of the motor (6) being connected to a rotating shaft (7), a scraper (8) being fixedly arranged on the rotating shaft (7); a filter screen (9) being arranged above the spray pipe (4), the filter screen (9) being fixedly connected to the shell (3), the rotating shaft (7) passing through the filter screen (9), a cleaning plate (10) for cleaning the filter screen (9) being arranged below the filter screen (9), the cleaning plate (10) being fixedly connected to the rotating shaft (7).

2. The activated carbon tail gas dry desulfurization device according to claim 1, It is characterized in that The rotating shaft (7) is provided with a spoiler (11), and a plurality of micro holes (12) are provided on the spoiler (11) at equal intervals.

3. The activated carbon tail gas dry desulfurization device according to claim 1, It is characterized in that A recovery bin (13) is provided at the bottom of the shell (3), the recovery bin (13) is slidably connected to the shell (3), a fixing plate (14) is fixedly provided on the recovery bin (13), and the fixing plate (14) is connected to the shell (3) by bolts.

4. The activated carbon tail gas dry desulfurization device according to claim 3, It is characterized in that The recovery bin (13) is provided with a sealing ring (15).

5. The activated carbon tail gas dry desulfurization device according to claim 1, It is characterized in that The spray pipes (4) are distributed in a ring shape inside the shell (3), and the nozzles (5) are arranged at equal intervals on the spray pipes (4).

6. The activated carbon tail gas dry desulfurization device according to claim 1, It is characterized in that The cleaning plate (10) and the scraper (8) are both provided with nylon corrosion-resistant brushes (16).

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