Waste gas treatment equipment

Abstract

The utility model relates to waste gas treatment equipment, which comprises a box body (1), a shell (2), a gas distribution pipe (3) and a stirring device (4), the box body is provided with a gas inlet (11), a slag discharge port (12) and a gas outlet (13), and a purification cavity is formed in the box body. An exhaust port (21), a dosing port (22), a gas inlet (23) and a discharge port (24) are formed in the shell, a treatment cavity is formed in the shell, and the gas inlet is communicated with the gas outlet through a communicating pipe (26). A gas-guide tube is arranged in the treatment cavity, one end of the gas-guide tube is connected with the gas inlet, the other end of the gas-guide tube extends to the bottom of the treatment cavity, the gas distribution tube is arranged at the bottom of the purification cavity and communicated with the gas inlet, and a plurality of gas distribution ports are formed in the gas distribution tube. The stirring motor (41) is fixedly arranged at the top of the shell, the upper end of the stirring rod is fixedly connected with the stirring motor, the lower end is inserted into the treatment cavity, and stirring blades are arranged at the end. According to the utility model, harmful gas and particulate matters in the waste gas can be completely removed.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon material processing, and more specifically to waste gas treatment equipment for carbon material drying. Background Art

[0002] When processing carbon materials, the carbon materials need to be dried, which will generate a large amount of waste gas, which contains dust and other particles, as well as water vapor, sulfur dioxide, grease, etc. Direct discharge will pollute the environment, so the waste gas needs to be treated. The existing method is usually to pass the waste gas into a spray tower, and spray water and purifiers into the rising air flow through the nozzle in the spray tower to remove harmful gases and particles in the waste gas.

[0003] In the prior art, the nozzle is usually of fixed design, which cannot spray the exhaust gas evenly and comprehensively. Not only is the spraying range limited, but the spraying efficiency is low. In addition, the exhaust gas flow is large, the flow rate is fast, and the residence time in the spray tower is short. Therefore, it cannot be ensured whether the exhaust gas is completely in contact with and mixed with the purifier, whether the harmful gases in the exhaust gas react completely, and whether the particulate matter in the exhaust gas is removed. It is possible that some harmful gases and particulate matter in the exhaust gas are not completely removed and are discharged with the exhaust gas, resulting in incomplete exhaust gas treatment, thereby polluting the environment.

[0004] The utility model aims to solve the problem that the particulate matter and harmful gases in the waste gas cannot be completely removed when the waste gas generated by carbon material drying is treated in the prior art. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a waste gas treatment device, including a box body 1, a shell 2, a gas distribution pipe 3 and a stirring device 4. The top of the side wall of the box body 1 is provided with an air inlet 11 and an air outlet 13, the bottom of the side wall of the box body 1 is provided with a slag discharge port 12, and a purification chamber 14 is formed inside the box body 1. The air inlet 11 is used to communicate with the waste gas outlet of the carbon material drying equipment. The top of the shell body 2 is provided with an exhaust port 21 and a dosing port 22, the top of the side wall of the shell body 2 is provided with a gas inlet 23, the bottom of the side wall of the shell body 2 is provided with a discharge port 24, and a processing chamber 25 is formed inside, and the gas inlet 23 is connected to the air outlet 13 through a connecting pipe 26.

[0006] An air guide pipe 27 is provided in the processing chamber 25, one end of which is fixedly connected to the gas inlet 23 and is connected internally, and the other end extends to the bottom of the processing chamber 25. The gas distribution pipe 3 is annular and horizontally arranged at the bottom of the purification chamber 14, and is connected to the air inlet 11 through a connecting pipe 31. A plurality of evenly distributed gas distribution ports 32 are arranged on the gas distribution pipe 3. The stirring device 4 includes a stirring motor 41 and a stirring rod 42. The stirring motor 41 is fixedly arranged on the top of the housing 2, and the stirring rod 42 is arranged vertically, with the upper end fixedly connected to the rotating shaft of the stirring motor 41, and the lower end passes through the housing 2 and is inserted into the processing chamber 25, and a stirring blade 43 is arranged at the lower end.

[0007] When the utility model is used, the air inlet 11 is connected to the exhaust gas outlet of the charcoal material drying equipment 7, an appropriate amount of clean water is injected into the purification chamber 14, and a certain amount of purifier is injected into the processing chamber 25. The exhaust gas generated by the charcoal material drying equipment enters the gas distribution pipe 3 from the air inlet 11, and is evenly sprayed into the clean water in the purification chamber 14 through the gas distribution holes 281 on the gas distribution pipe 3. The particulate matter in the exhaust gas is adsorbed by the clean water to form a precipitate, and a small amount of sulfur dioxide gas and grease in the exhaust gas is absorbed at the same time. The exhaust gas treated with clean water enters the purifier at the bottom of the processing chamber 25 through the connecting pipe 26 and the guide pipe. Under the stirring action of the stirring device 4, the exhaust gas and the purifier are fully mixed, and the sulfur dioxide and grease in the exhaust gas are fully reacted with the purifier and then absorbed, and the clean exhaust gas is discharged from the exhaust port 21.

[0008] The utility model sets a box body 1, sets a gas distribution pipe 3 at the bottom of the purification chamber 14, adds a proper amount of clean water into the purification chamber 14, and the exhaust gas can be evenly dispersed into the clean water through the gas distribution pipe 3. The particulate matter in the exhaust gas can be adsorbed in the clean water to form a precipitate, and a small amount of sulfur dioxide gas and grease in the exhaust gas can be absorbed at the same time. A shell 2 is set, and the exhaust gas treated with clean water is passed into the bottom of the processing chamber 25, and a proper amount of purifier is added into the processing chamber 25. Under the stirring action of the stirring device 4, the exhaust gas and the purifier can be fully mixed, and the sulfur dioxide and grease in the exhaust gas can be fully reacted with the purifier and then absorbed, thereby the particulate matter and harmful gases in the exhaust gas are cleaned.

[0009] The utility model can remove harmful gases and particulate matter in the waste gas generated by drying carbon materials to prevent environmental pollution, and solves the problem that the particulate matter and harmful gases in the waste gas cannot be removed cleanly when the waste gas generated by drying carbon materials is treated in the prior art.

[0010] Preferably, a screen 15 is further included, which is horizontally arranged in the purification chamber 14, above the gas distribution pipe 3, and the side of the screen 15 is fixedly connected to the inner wall of the box body 1. The screen 15 can filter the exhaust gas to prevent the particles in the exhaust gas from being discharged with the exhaust gas, and completely remove the particles such as dust in the exhaust gas.

[0011] Preferably, a spray device 5 is further included, a spray port 16 is provided on the side wall of the box body 1, and the spray device 5 includes a spray pipe 51 and a spray head 52. The spray pipe 51 is horizontally arranged in the purification chamber 14, located above the screen 15, and one end is fixedly connected to the spray port 16. The spray head 52 is fixedly arranged at the other end of the spray pipe 51 and communicated with the inside of the spray pipe 51.

[0012] A spray device 5 is arranged in the shell 2. When a large number of particles adhere to the screen 15, fresh water is sprayed onto the screen 15 through the spray device 5 to rinse the screen 15, so as to clean the particles adhered to the screen 15 and restore the filtering capacity of the screen 15. At the same time, the sedimentation and sludge at the bottom of the purification chamber 14 can be rinsed to promote the discharge of the sedimentation and sludge.

[0013] Preferably, a gas distribution plate 28 is further included. The gas distribution plate 28 is horizontally arranged in the processing chamber 25, below the stirring blade 43 and above the outlet of the gas guide pipe 27, and a plurality of gas distribution holes 281 are evenly arranged on the gas distribution plate 28.

[0014] By arranging a gas distribution plate 28 in the processing chamber 25, the gas distribution plate 28 is located above the outlet of the air duct 27, and the exhaust gas is discharged from the outlet at the lower end of the air duct 27. It is first distributed in the purifier in the processing chamber 25 through the gas distribution plate 28, and then stirred by the stirring device 4, so that the exhaust gas and the purifier are mixed more evenly, the reaction rate is increased, and the harmful gas in the exhaust gas is treated more thoroughly.

[0015] Preferably, the bottom surface of the purification chamber 14 is an inclined surface, and the slag discharge port 12 is arranged at the lowest point of the bottom surface of the purification chamber 14. The bottom surface of the purification chamber 14 is an inclined surface, and the slag discharge port 12 is arranged at the lowest point of the bottom surface of the purification chamber 14, which can facilitate the discharge of sediments generated in the purification chamber 14 from the discharge port 24.

[0016] Preferably, a first liquid level gauge 17 is provided in the purification chamber 14, and a second liquid level gauge 29 is provided in the processing chamber 25. The first liquid level gauge 17 can measure the liquid level in the purification chamber 14, and the second liquid level gauge 29 can measure the liquid level in the processing chamber 25.

[0017] Preferably, it further comprises a base 6 , a plurality of supporting legs 61 are arranged at the bottom of the base 6 , the box body 1 is fixedly arranged on the base 6 , and the shell 2 is arranged on the box body 1 . BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 .Schematic diagram of the overall structure of the waste gas treatment equipment;

[0019] Figure 2 .Schematic diagram of the internal structure of the box;

[0020] Figure 3 . Figure 2 Schematic diagram of the AA section;

[0021] Figure 4 .Schematic diagram of the internal structure of the shell;

[0022] Figure 5 . Figure 4 Schematic diagram of the middle BB section;

[0023] Figure 6 .Diagram of usage status.

[0024] In the figure, 1. box, 11. air inlet, 111. air inlet valve, 12. slag discharge port, 121. slag discharge valve, 13. air outlet, 14. purification chamber, 15. screen, 16. spray port, 161. spray valve, 17. first liquid level gauge, 2. shell, 21. exhaust port, 22. dosing port, 221. dosing valve, 23. gas inlet, 24. discharge port, 241. discharge valve, 25. treatment chamber, 26. Connecting pipe, 27. Air guide pipe, 28. Gas distribution plate, 281. Gas distribution hole, 29. Second liquid level meter, 3. Gas distribution pipe, 31. Connecting pipe, 32. Gas distribution port, 4. Stirring device, 41. Stirring motor, 42. Stirring rod, 43. Stirring blade, 5. Spraying device, 51. Spraying pipe, 52. Nozzle, 6. Base, 61. Support leg, 7. Carbon material drying equipment, 71. Exhaust gas pipeline. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0026] like Figure 1 As shown, the exhaust gas treatment equipment is used to purify the exhaust gas generated by the carbon material drying equipment, and includes a base 6, a box body 1, a shell 2 and a stirring device 4.

[0027] The base 6 is a flat plate, and a plurality of supporting legs 61 are disposed at the bottom of the base 6 . The box body 1 is fixedly disposed on the base 6 , and the shell 2 is disposed on the box body 1 .

[0028] The top of the side wall of the box body 1 is provided with an air inlet 11, a spray port 16 and an air outlet 13, the bottom of the side wall of the box body 1 is provided with a slag discharge port 12, and a purification chamber 14 is formed inside the box body 1. The air inlet 11 is provided with an air inlet valve 11, the spray port 16 is provided with a spray valve 161, and the slag discharge port 12 is provided with a slag discharge valve 121.

[0029] The air inlet 11 is used to communicate with the exhaust gas outlet of the carbon material drying equipment 7 .

[0030] The top of the shell 2 is provided with an exhaust port 21 and a dosing port 22, the top of the side wall of the shell 2 is provided with a gas inlet 23, the bottom of the side wall of the shell 2 is provided with a discharge port 24, a processing chamber 25 is formed inside, and the gas inlet 23 is connected to the gas outlet 13 through a connecting pipe 26. The dosing port 22 is provided with a dosing valve 221, and the discharge port 24 is provided with a discharge valve 241.

[0031] The purifier is selected according to the content of harmful gases in the exhaust gas. For example, it can be alkaline solution, which reacts with sulfur dioxide gas to absorb sulfur dioxide gas, and alkaline solution or surfactant reacts with grease to absorb grease.

[0032] like Figure 2 and Figure 3 As shown, a gas distribution pipe 3, a screen 15, a spray device 5 and a first liquid level meter 17 are provided in the purification chamber 14. The gas distribution pipe 3 is in a circular shape and is horizontally arranged at the bottom of the purification chamber 14. It is connected to the air inlet 11 through a connecting pipe 31. A plurality of evenly distributed gas distribution ports 32 are provided on the gas distribution pipe 3.

[0033] The screen 15 is horizontally arranged in the purification chamber 14, above the gas distribution pipe 3, and the side of the screen 15 is fixedly connected to the inner wall of the box 1. The screen 15 can filter the exhaust gas to prevent the particles in the exhaust gas from being discharged with the exhaust gas, and completely remove the dust and other particles in the exhaust gas.

[0034] The spray device 5 includes a spray pipe 51 and a nozzle 52 . The spray pipe 51 is horizontally arranged in the purification chamber 14 , located above the screen 15 , and one end is fixedly connected to the spray port 16 . The nozzle 52 is fixedly arranged at the other end of the spray pipe 51 and communicated with the inside of the spray pipe 51 .

[0035] A spray device 5 is arranged in the shell 2. When a large number of particles adhere to the screen 15, fresh water is sprayed onto the screen 15 through the spray device 5 to rinse the screen 15, so as to clean the particles adhered to the screen 15 and restore the filtering capacity of the screen 15. At the same time, the sedimentation and sludge at the bottom of the purification chamber 14 can be rinsed to promote the discharge of the sedimentation and sludge.

[0036] The bottom surface of the purification chamber 14 is an inclined surface, and the slag discharge port 12 is arranged at the lowest point of the bottom surface of the purification chamber 14 , so that the sediments and sludge generated in the purification chamber 14 can be discharged from the discharge port 24 .

[0037] The first liquid level meter 17 is fixedly disposed on the inner wall of the purification chamber 14 , and the liquid level in the purification chamber 14 can be measured by the first liquid level meter 17 .

[0038] like Figure 4 and Figure 5As shown, a gas guide pipe 27 , a gas distribution plate 28 and a second liquid level meter 29 are arranged in the processing chamber 25 .

[0039] The air guide tube 27 is L-shaped, one end of which is fixedly connected to the gas inlet 23 and communicated with the inside, and the other end of which extends to the center of the bottom of the processing chamber 25 and the end of which is the outlet of the air guide tube 27 .

[0040] The gas distribution plate 28 is horizontally disposed in the processing chamber 25 , below the stirring blade 43 and above the outlet of the gas guide pipe 27 , and a plurality of gas distribution holes 281 are evenly disposed on the gas distribution plate 28 .

[0041] The waste gas discharged from the outlet at the lower end of the gas guide pipe 27 can be distributed in the purifier in the processing chamber 25 through the gas distribution plate 28, and then stirred by the stirring device 4 to make the waste gas and the purifier mix more evenly, increase the reaction rate, and make the harmful gas in the waste gas be treated more thoroughly.

[0042] The second liquid level meter 29 is fixedly disposed on the inner wall of the processing chamber 25 , and the liquid level in the processing chamber 25 can be measured by the second liquid level meter 29 .

[0043] The stirring device 4 includes a stirring motor 41 and a stirring rod 42. The stirring motor 41 is fixedly arranged on the top of the shell 2. The stirring rod 42 is vertically arranged. The upper end is fixedly connected to the rotating shaft of the stirring motor 41, and the lower end passes through the shell 2 and is inserted into the processing chamber 25. The lower end is provided with a stirring blade 43.

[0044] When the stirring motor 41 rotates, the stirring rod 42 is driven to rotate, so that the purifier is stirred through the stirring blades 43, so that the exhaust gas and the purifier are fully mixed, and the sulfur dioxide and grease in the exhaust gas react fully with the purifier and are absorbed.

[0045] like Figure 6 As shown, when the utility model is used, an appropriate amount of clean water is injected into the purification chamber 14, an appropriate amount of purifier is added into the processing chamber 25, and the air inlet 11 is connected to the exhaust gas outlet of the charcoal material drying equipment 7 through the exhaust gas pipe 71. The exhaust gas generated by the charcoal material drying equipment 7 enters the gas distribution pipe 3 from the air inlet 11, and is evenly sprayed into the clean water in the purification chamber 14 through the gas distribution holes 281 on the gas distribution pipe 3. The particulate matter in the exhaust gas is adsorbed by the clean water to form a precipitate, and at the same time, a small amount of sulfur dioxide gas and grease in the exhaust gas is absorbed.

[0046] The waste gas after water purification treatment is filtered through the screen 15, enters the purifier at the bottom of the processing chamber 25 through the connecting pipe 26 and the guide pipe, and is distributed in the purifier through the gas distribution plate 28. Under the stirring action of the stirring device 4, the waste gas and the purifier are fully mixed, and the sulfur dioxide and grease in the waste gas are fully reacted with the purifier and absorbed, and the clean waste gas is discharged from the exhaust port 21.

[0047] When there are many particles adhering to the screen 15, the air inlet valve 11 is closed, the slag discharge valve 121 and the spray valve 161 are opened, and fresh water is sprayed on the screen 15 through the spray device 5, so that the screen 15 can be rinsed, the particles adhering to the screen 15 are rinsed clean, and the filtering capacity of the screen 15 is restored. At the same time, the sedimentation and sludge at the bottom of the purification chamber 14 are rinsed to promote the discharge of the sedimentation and sludge from the slag discharge port 12. When the reagent in the processing chamber 25 has reacted, the dosing valve 221 is opened to add reagents to the processing chamber 25.

[0048] The utility model sets a box 1, sets a gas distribution pipe 3 at the bottom of the purification chamber 14, and can evenly disperse the waste gas into the clean water in the purification chamber 14. The particulate matter in the waste gas can be adsorbed by the clean water to form precipitation, and a small amount of sulfur dioxide gas and grease in the waste gas can be absorbed at the same time. The shell 2 is set, and the waste gas after the water purification treatment is passed into the bottom of the treatment chamber 25, and a proper amount of purifier is added into the treatment chamber 25. Under the stirring action of the stirring device 4, the waste gas and the purifier can be fully mixed, so that the sulfur dioxide and grease in the waste gas are fully reacted with the purifier and absorbed, thereby cleaning the particulate matter and harmful gas in the waste gas. The utility model can remove harmful gases and particulate matter in the waste gas generated by drying carbon materials to prevent environmental pollution.

[0049] The screen 15 in the purification chamber 14 can filter the exhaust gas to prevent the particles in the exhaust gas from being discharged with the exhaust gas, and completely remove the particles such as dust in the exhaust gas. A spray device 5 is arranged in the housing 2. When there are many particles adhering to the screen 15, fresh water is sprayed on the screen 15 through the spray device 5 to wash the screen 15, wash away the particles adhering to the screen 15, restore the filtering capacity of the screen 15, and at the same time wash the sediment at the bottom of the purification chamber 14 to promote the discharge of the sediment.

[0050] By arranging a gas distribution plate 28 in the processing chamber 25, so that the gas distribution plate 28 is located above the outlet of the air guide pipe 27, the waste gas is discharged from the outlet at the lower end of the air guide pipe 27, first distributed in the purifier in the processing chamber 25 through the gas distribution plate 28, and then stirred by the stirring device 4, so that the waste gas and the purifier are mixed more evenly, the reaction rate is increased, and the harmful gas in the waste gas is treated more thoroughly. The bottom surface of the purification chamber 14 is set as an inclined surface, and the slag discharge port 12 is set at the lowest point of the bottom surface of the purification chamber 14, which can facilitate the discharge of sediments generated in the purification chamber 14 from the discharge port 24.

[0051] It should be noted that the above-mentioned embodiments illustrate rather than limit the invention and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims.

Claims

1. Waste gas treatment equipment, characterized in that: It comprises a box (1), a shell (2), a gas distribution pipe (3) and a stirring device (4). The top of the side wall of the box body (1) is provided with an air inlet (11) and an air outlet (13), the bottom of the side wall of the box body (1) is provided with a slag discharge port (12), a purification chamber (14) is formed inside the box body (1), and the air inlet (11) is used to communicate with the exhaust gas outlet of the carbon material drying equipment; The top of the shell (2) is provided with an exhaust port (21) and a drug addition port (22), the top of the side wall of the shell (2) is provided with a gas inlet (23), the bottom of the side wall of the shell (2) is provided with a discharge port (24), and a processing chamber (25) is formed inside; The gas inlet (23) is connected to the gas outlet (13) via a connecting pipe (26); An air guide tube (27) is provided in the processing chamber (25), one end of the air guide tube (27) is fixedly connected to the gas inlet (23) and is internally connected, and the other end of the air guide tube (27) extends to the bottom of the processing chamber (25); The gas distribution pipe (3) is annular and horizontally arranged at the bottom of the purification chamber (14), and is connected to the gas inlet (11) through a connecting pipe (31). The gas distribution pipe (3) is provided with a plurality of evenly distributed gas distribution ports (32); The stirring device (4) comprises a stirring motor (41) and a stirring rod (42); the stirring motor (41) is fixedly arranged on the top of the shell (2); the stirring rod (42) is arranged vertically, the upper end of which is fixedly connected to the rotating shaft of the stirring motor (41), and the lower end of which passes through the shell (2) and is inserted into the processing chamber (25); and the lower end is provided with a stirring blade (43).

2. The exhaust gas treatment equipment according to claim 1, characterized in that: Also includes a screen (15), The screen (15) is horizontally arranged in the purification chamber (14) and is located above the gas distribution pipe (3), and the side of the screen (15) is fixedly connected to the inner wall of the box body (1).

3. The exhaust gas treatment equipment according to claim 2, characterized in that: It also includes a spray device (5), A spray port (16) is provided on the side wall of the box body (1); The spray device (5) comprises a spray pipe (51) and a spray head (52). The spray pipe (51) is horizontally arranged in the purification chamber (14), located above the screen (15), and one end of the spray pipe is fixedly connected to the spray port (16); The spray head (52) is fixedly arranged at the other end of the spray pipe (51) and is communicated with the interior of the spray pipe (51).

4. The exhaust gas treatment equipment according to claim 3, characterized in that: Also includes a gas distribution plate (28), The gas distribution plate (28) is horizontally arranged in the processing chamber (25), located below the stirring blade (43) and above the outlet of the gas guide pipe (27), and a plurality of gas distribution holes (281) are evenly arranged on the gas distribution plate (28).

5. The exhaust gas treatment equipment according to claim 4, characterized in that: The bottom surface of the purification chamber (14) is an inclined surface; The slag discharge port (12) is arranged at the lowest point of the bottom surface of the purification chamber (14).

6. The exhaust gas treatment equipment according to claim 5, characterized in that: The purification chamber is provided with a first liquid level gauge (17). A second liquid level meter (29) is arranged in the processing chamber (25).

7. The exhaust gas treatment device according to any one of claims 1 to 6, further comprising a base (6), A plurality of supporting legs (61) are provided at the bottom of the base (6); The box body (1) is fixedly arranged on the base (6), and the shell (2) is arranged on the box body (1).

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