A spray type wet flue gas dust removal and desulfurization purification device

Abstract

The utility model relates to flue gas purification technical field discloses a kind of spray wet flue gas dust removal desulfurization purification devices, including bottom plate, the bottom plate top is fixedly connected with absorption pool, the absorption pool top is fixedly connected with spray chamber, the spray chamber inner wall is fixedly connected with fixed plate one, the fixed plate one inside is provided with spray assembly, and the spray assembly includes multiple air jets, each air jet is fixedly connected in fixed plate one inside, and each fixed plate one end is fixedly connected with shunt pipe. In the utility model, flue gas is disturbed by the airflow ejected by air jet, which increases the contact area of flue gas and desulfurization agent and the residence time of flue gas. The utility model solves the problem of traditional spray wet flue gas dust removal desulfurization purification device, flue gas is relatively concentrated when entering the spray chamber, which leads to insufficient contact between desulfurizer and flue gas, resulting in poor desulfurization effect. The desulfurization efficiency of the spray wet flue gas dust removal desulfurization purification device is improved.

Description

Technical Field

[0001] This utility model relates to the field of flue gas purification technology, and in particular to a spray-type wet flue gas dust removal and desulfurization purification device. Background Technology

[0002] In the field of flue gas purification technology, spray-type wet flue gas desulfurization and dust removal technology is one of the most widely used technologies. It involves atomizing desulfurizing agents and spraying them into the flue gas, ensuring full contact between the agents and the flue gas. This allows the agents to react with sulfides in the flue gas, thereby removing harmful components such as sulfur dioxide and bringing the flue gas up to environmental standards. Furthermore, this technology is characterized by high desulfurization efficiency and strong adaptability.

[0003] Existing spray-type wet flue gas desulfurization and dust removal purification devices typically employ a spray tower structure. Flue gas enters from the lower part of the spray section of the tower and flows upwards. The spray heads at the top of the tower atomize the desulfurizing agent and spray it downwards, ensuring contact between the agent and the flue gas. During the spraying process, the desulfurizing agent reacts chemically with sulfur dioxide and other substances in the flue gas to generate harmless substances, ultimately achieving the purpose of desulfurization and dust removal from the flue gas.

[0004] However, existing spray-type wet flue gas desulfurization and purification devices have some problems in practical operation. Because the flue gas enters the spray chamber in a relatively concentrated manner, the contact area between the desulfurizing agent and the flue gas is limited. Some flue gas fails to fully contact the agent, resulting in incomplete reaction and affecting the overall desulfurization effect. Furthermore, insufficient flue gas residence time also reduces desulfurization efficiency, making it difficult to meet increasingly stringent environmental emission requirements. Therefore, a spray-type wet flue gas desulfurization and purification device is proposed to solve these problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a spray-type wet flue gas dust removal and desulfurization purification device, which aims to improve the problem that in traditional spray-type wet flue gas dust removal and desulfurization purification devices, the flue gas is relatively concentrated when it enters the spray chamber, resulting in insufficient contact between the desulfurizing agent and the flue gas and poor desulfurization effect.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A spray-type wet flue gas dust removal, desulfurization and purification device includes a base plate, an absorption tank fixedly connected to the top of the base plate, a spray chamber fixedly connected to the top of the absorption tank, a fixing plate fixedly connected to the inner wall of the spray chamber, and a spray assembly disposed inside the fixing plate.

[0008] The spray assembly includes multiple spray heads, each spray head is fixedly connected inside a fixed plate, each fixed plate is fixedly connected to one end of a diverter pipe, each diverter pipe is fixedly connected to one end of an annular pipe, and a connector is fixedly connected to one side of the annular pipe.

[0009] As a further description of the above technical solution:

[0010] An air compressor is installed on one side of the absorption tank. An air pipe is fixedly connected to the output end of the air compressor, and one end of the air pipe is fixedly connected to one end of the connector.

[0011] As a further description of the above technical solution:

[0012] A second fixing plate is fixedly connected to the inner wall of the spray chamber, and a demisting plate is fixedly connected to the inner wall of the second fixing plate.

[0013] As a further description of the above technical solution:

[0014] A fixed base is provided on one side of the base plate, and a reflux pump is fixedly connected to the top of the fixed base. A reflux pipe three is fixedly connected to the input end of the reflux pump, and a reflux pipe one is fixedly connected to the output end of the reflux pump.

[0015] As a further description of the above technical solution:

[0016] A fixed base is fixedly connected to the top of the base plate. A sliding groove is provided on the outer wall of the fixed base. A filter screen is provided on the top of the fixed base. The filter screen is slidably connected inside the sliding groove. A fixed cover is provided on the top of the fixed base.

[0017] As a further description of the above technical solution:

[0018] A connecting pipe is fixedly connected to the outer wall of the fixed base. A flange is fixedly connected to one end of the connecting pipe, and one side of the flange is fixedly connected to one end of the return pipe.

[0019] As a further description of the above technical solution:

[0020] A flue is fixedly connected to the outer wall of the spray chamber, an exhaust pipe is fixedly connected to the top of the spray chamber, a return pipe II is fixedly connected to the inside of the spray chamber, one end of the return pipe II is fixedly connected to one end of the return pipe I, and multiple spray pipes are fixedly connected to the bottom of the return pipe II, with a spray head fixedly connected to the bottom of each spray pipe.

[0021] As a further description of the above technical solution:

[0022] A conveying pipe is fixedly connected to the outer wall of the absorption tank, and a butterfly valve is fixedly connected to the outer wall of the conveying pipe.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the air compressor delivers high-pressure gas to the annular pipe through the air pipe and connector, and then distributes it to the jet head through the distribution pipe. Finally, the gas is ejected from the jet head. The flue gas enters the spray chamber from the flue gas duct on one side of the spray chamber and rises. It is then disrupted by the airflow ejected from the jet head, which increases the contact area between the flue gas and the desulfurization agent and the residence time of the flue gas. This solves the problem that in traditional spray-type wet flue gas dust removal and desulfurization purification devices, the flue gas is relatively concentrated when it enters the spray chamber, resulting in insufficient contact between the desulfurization agent and the flue gas and poor desulfurization effect. This improves the desulfurization efficiency of the spray-type wet flue gas dust removal and desulfurization purification device.

[0025] 2. In this utility model, the desulfurization agent is stored in the absorption tank and extracted through the return pipe. It is then sprayed into the flue gas through the air compressor. When the agent is extracted through the return pipe, it is filtered by a filter screen to remove undissolved particles in the desulfurization agent, thus avoiding clogging of the spray head and affecting the operation of the equipment. The filter screen is slidably connected to the fixed base through a sliding groove and then fixed by a fixed cover. This achieves the function of filtering undissolved particles in the desulfurization agent and making the filter screen easy to replace. It solves the problem of traditional spray-type wet flue gas dust removal and desulfurization purification devices having no filter device, which causes particles contained in the agent to clog and damage the spray head. This improves the durability of the spray-type wet flue gas dust removal and desulfurization purification device. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a spray-type wet flue gas dust removal, desulfurization and purification device proposed in this utility model.

[0027] Figure 2 This is a schematic diagram of the spray head of a spray-type wet flue gas dust removal, desulfurization and purification device proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the structure of the demister plate of a spray-type wet flue gas dust removal, desulfurization and purification device proposed in this utility model;

[0029] Figure 4 This is a schematic diagram of the absorption tank of a spray-type wet flue gas dust removal, desulfurization and purification device proposed in this utility model.

[0030] Figure 5 This is a schematic diagram of the fixed base of a spray-type wet flue gas dust removal, desulfurization and purification device proposed in this utility model.

[0031] Legend:

[0032] 1. Base plate; 2. Air compressor; 3. Absorption tank; 4. Spray chamber; 5. Flue gas duct; 6. Discharge pipe; 7. Return pipe one; 8. Air pipe; 9. Return pump; 10. Fixed base; 11. Ring pipe; 12. Diverter pipe; 13. Fixed plate one; 14. Connector; 15. Jet nozzle; 16. Demisting plate; 17. Fixed plate two; 18. Return pipe two; 19. Spray pipe; 20. Spray head; 21. Conveyor pipe; 22. Butterfly valve; 23. Filter screen; 24. Return pipe three; 25. Fixed base; 26. Slide groove; 27. Connecting pipe; 28. Flange; 29. ​​Fixed cover. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figures 1-2 An embodiment of this utility model is provided: a spray-type wet flue gas dust removal and desulfurization purification device, including a base plate 1, an absorption tank 3 fixedly connected to the top of the base plate 1, the absorption tank 3 is used to store desulfurization agents and then spray the flue gas for desulfurization and dust removal, a spray chamber 4 fixedly connected to the top of the absorption tank 3, the flue gas enters the spray chamber 4 for desulfurization and dust removal, a fixing plate 13 fixedly connected to the inner wall of the spray chamber 4, and a spray assembly is provided inside the fixing plate 13;

[0035] The spray assembly includes multiple jet heads 15, each jet head 15 is fixedly connected inside the fixed plate 13, and each fixed plate 13 is fixedly connected to one end of a diverter pipe 12. Each diverter pipe 12 is fixedly connected to one end of an annular pipe 11, and a connector 14 is fixedly connected to one side of the annular pipe 11. High-pressure airflow enters the annular pipe 11 through the connector 14, and is then distributed into the jet head 15 by the diverter pipe 12. Finally, the jet head 15 sprays the air towards the flue gas, disrupting the flue gas and increasing the distribution of the flue gas in the spray chamber 4. The fixed plate 13 is used to fix the jet head 15 and the diverter pipe 12.

[0036] Reference Figures 1-5An air compressor 2 is installed on one side of the absorption tank 3. An air pipe 8 is fixedly connected to the output end of the air compressor 2. One end of the air pipe 8 is fixedly connected to one end of the connector 14. The air compressor 2 compresses air and delivers it to the connector 14 through the air pipe 8. A fixing plate 17 is fixedly connected to the inner wall of the spray chamber 4. A demister plate 16 is fixedly connected to the inner wall of the fixing plate 17. The fixing plate 17 fixes the demister plate 16 to the inner wall of the spray chamber 4. The fixing plate 17 is used to demister the flue gas after desulfurization, reducing the particulate content in the flue gas to meet emission requirements. A fixing seat 10 is installed on one side of the base plate 1. A return pump 9 is fixedly connected to the top of the fixing seat 10. The return pump 9 input... A return pipe 24 is fixedly connected to the end of the reflux pump 9, and a return pipe 7 is fixedly connected to the output end of the reflux pump 9. The reflux pump 9 extracts the desulfurization agent from the absorption tank 3 through the return pipe 24 and transports it to the spray chamber 4 through the return pipe 7 to spray the flue gas. A fixed base 25 is fixedly connected to the top of the base plate 1. A sliding groove 26 is opened on the outer wall of the fixed base 25. A filter screen 23 is installed on the top of the fixed base 25 and is slidably connected inside the sliding groove 26. A fixed cover 29 is installed on the top of the fixed base 25. The filter screen 23 is inserted into the fixed base 25 along the sliding groove 26 and fixed by the fixed cover 29. A connecting pipe 27 is fixedly connected to the outer wall. A flange 28 is fixedly connected to one end of the connecting pipe 27. One side of the flange 28 is fixedly connected to one end of the return pipe 24. When the return pump 9 draws desulfurization agent through the return pipe 24, it needs to be filtered by the filter screen 23 to remove particles that are not dissolved in the desulfurization agent, thus preventing blockage of the spray equipment and damage to the device. A flue gas duct 5 is fixedly connected to the outer wall of the spray chamber 4. An exhaust pipe 6 is fixedly connected to the top of the spray chamber 4. Flue gas enters the spray chamber 4 through the flue gas duct 5 for desulfurization and dust removal. After desulfurization and dust removal, the flue gas that meets the emission standards will be discharged through the exhaust pipe 6. A return pipe is fixedly connected inside the spray chamber 4. Return pipe 218 is fixedly connected at one end to return pipe 17. Multiple spray pipes 19 are fixedly connected to the bottom of return pipe 218. Each spray pipe 19 is fixedly connected to the bottom of spray head 20. Return pump 9 delivers the agent to return pipe 218 through return pipe 17, and then the agent is distributed to each spray head 20 by the spray pipes 19. Finally, the agent is sprayed out of the spray head 20 to the flue gas, thereby desulfurizing and removing dust from the flue gas. A conveying pipe 21 is fixedly connected to the outer wall of absorption tank 3. A butterfly valve 22 is fixedly connected to the outer wall of conveying pipe 21. The desulfurizing agent enters the absorption tank 3 for storage through conveying pipe 21. The butterfly valve 22 is used to open and close conveying pipe 21.

[0037] Working principle: The filter screen 23 is inserted into the fixed base 25 along the slide groove 26 and then fixed by the fixed cover 29. The butterfly valve 22 is opened to transport the desulfurization agent to the absorption tank 3 for storage. The reflux pump 9 is started to extract the desulfurization agent through the pipe 27 and the reflux pipe 3 24. The undissolved particles in the agent are filtered out through the filter screen 23. The agent is then transported to the reflux pipe 2 18 through the reflux pipe 1 7. Then, it is distributed to each spray head 20 by the spray pipe 19. Finally, the spray head 20 sprays the agent outwards to the flue gas to desulfurize and remove dust from the flue gas.

[0038] Flue gas enters the spray chamber 4 through flue gas duct 5. At the same time, air compressor 2 is turned on. Air compressor 2 compresses air and delivers it to the annular pipe 11 through air pipe 8 and connector 14. Then, it is distributed to the jet head 15 by the diverter pipe 12. Finally, the jet head 15 sprays the flue gas entering the spray chamber 4 from the flue gas duct 5, which disperses the concentrated flue gas and improves the distribution of flue gas in the spray chamber 4. This increases the contact area between the desulfurization agent and the flue gas, thereby improving the efficiency of desulfurization and dust removal. The desulfurized flue gas continues to rise and passes through the demister plate 16. The demister plate 16 blocks the residual particulate matter in the flue gas, so that the flue gas meets the emission standards.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A spray-type wet flue gas dust removal and desulfurization purification device, comprising a base plate (1), characterized in that: An absorption tank (3) is fixedly connected to the top of the base plate (1), and a spray chamber (4) is fixedly connected to the top of the absorption tank (3). A fixing plate (13) is fixedly connected to the inner wall of the spray chamber (4), and a spray assembly is provided inside the fixing plate (13). The spray assembly includes multiple spray heads (15), each spray head (15) is fixedly connected inside a fixed plate (13), each fixed plate (13) is fixedly connected to a diverter pipe (12) at one end, each diverter pipe (12) is fixedly connected to an annular pipe (11) at one end, and a connector (14) is fixedly connected to one side of the annular pipe (11).

2. The spray-type wet flue gas dust removal and desulfurization purification device according to claim 1, characterized in that: An air compressor (2) is provided on one side of the absorption tank (3). An air pipe (8) is fixedly connected to the output end of the air compressor (2). One end of the air pipe (8) is fixedly connected to one end of the connector (14).

3. The spray-type wet flue gas dust removal and desulfurization purification device according to claim 1, characterized in that: The inner wall of the spray chamber (4) is fixedly connected to a fixing plate two (17), and the inner wall of the fixing plate two (17) is fixedly connected to a demisting plate (16).

4. The spray-type wet flue gas dust removal and desulfurization purification device according to claim 1, characterized in that: A fixed seat (10) is provided on one side of the base plate (1). A reflux pump (9) is fixedly connected to the top of the fixed seat (10). A reflux pipe three (24) is fixedly connected to the input end of the reflux pump (9). A reflux pipe one (7) is fixedly connected to the output end of the reflux pump (9).

5. The spray-type wet flue gas dust removal and desulfurization purification device according to claim 1, characterized in that: The base plate (1) is fixedly connected to a fixed base (25) at the top. The fixed base (25) has a groove (26) on its outer wall. A filter screen (23) is provided on the top of the fixed base (25). The filter screen (23) is slidably connected inside the groove (26). A fixed cover (29) is provided on the top of the fixed base (25).

6. The spray-type wet flue gas dust removal and desulfurization purification device according to claim 5, characterized in that: The outer wall of the fixed base (25) is fixedly connected to a pipe (27), one end of the pipe (27) is fixedly connected to a flange (28), and one side of the flange (28) is fixedly connected to one end of the return pipe (24).

7. The spray-type wet flue gas dust removal and desulfurization purification device according to claim 1, characterized in that: The outer wall of the spray chamber (4) is fixedly connected to a flue (5), the top of the spray chamber (4) is fixedly connected to a discharge pipe (6), the inside of the spray chamber (4) is fixedly connected to a return pipe (2) (18), one end of the return pipe (2) (18) is fixedly connected to one end of the return pipe (1) (7), and the bottom of the return pipe (2) (18) (18) (19) (19) (20) (20) (20) (19 ...

8. The spray-type wet flue gas dust removal and desulfurization purification device according to claim 1, characterized in that: The outer wall of the absorption tank (3) is fixedly connected to a conveying pipe (21), and the outer wall of the conveying pipe (21) is fixedly connected to a butterfly valve (22).

Images