Steelmaking tail gas treatment device

Abstract

The utility model discloses a steelmaking tail gas treatment device, which comprises a treatment tank and a filter cartridge, a shunt ring is fixedly erected in the treatment tank, the bottom surface of the shunt ring is communicated and connected with a shunt pipe, a spray head is arranged on the surface of the shunt pipe, and a heating wire is fixedly arranged in the shunt pipe. The steel-making tail gas treatment device has the beneficial effects that the filter cartridge is adopted, the middle shaft and the partition plates which can rotate through the hand wheel are arranged in the filter cartridge, the filter cotton is inserted between the partition plates, steel-making tail gas enters the filter cartridge through the gas inlet pipe, enters between the partition plates, is filtered by the filter cotton and then enters the treatment tank along the gas transmission channel to be treated; a worker can rotate the hand wheel to rotate the filter cotton which does not participate in filtering to the position between the air inlet pipe and the air conveying channel, then the top cover can be opened, the handle is lifted by hand to take out the saturated filter cotton for replacement, shutdown is not needed during replacement, continuous work is facilitated, and the working efficiency and the use convenience are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tail gas treatment, in particular to a steelmaking tail gas treatment device. Background Art

[0002] At present, with the rapid development of industrialization, a large amount of industrial waste gas is inevitably generated. These will not only affect the normal production of the factory, but also cause serious pollution to the environment. Therefore, how to effectively reduce the pollution caused by industrial waste gas has become an urgent problem that needs to be solved. In the existing desulfurization and denitrification treatment process, the wet process of using absorption liquid to react with waste gas to carry out desulfurization and denitrification is widely used.

[0003] After searching, it was found that the application number is CN202322152827.1, and the name is a steel plant tail gas desulfurization and denitrification treatment device. The patent number CN216987041U proposed in this application has the problem that the heating device is located at the bottom, the heating effect is uneven, and the barrel body will produce a large vibration during stirring. The filter plate and the filter box in the above patent are movably plugged in, and there is no locking mechanism to position the filter plate. The filter plate can easily slip out of the filter box due to the vibration generated by the barrel body, affecting the problem of daily use. The absorption liquid is poured into the barrel body through the motor, rotating shaft, turntable, transmission mechanism, stirring rod and heating wire, and then the heating wire is energized. The heating wire can quickly heat the absorption liquid to increase the reaction rate with the exhaust gas, and the exhaust gas is passed into the hollow plate through the air inlet pipe, and then through multiple The exhaust hole is evenly passed into the absorption liquid, and the motor is started. The motor drives the turntable to rotate, and the turntable drives the two shafts to rotate around the motor. Through the gears and the outer gear ring, the two shafts rotate while rotating, which can evenly heat the absorption liquid, thereby improving the heating speed of the absorption liquid. The contact between the exhaust gas and the absorption liquid is more complete, and the filter plate can perform secondary filtration on the exhaust gas. When the filter plate needs to be replaced or cleaned, the two pull rings are pulled, and the pull rings drive the locking rod to squeeze the spring and no longer engage with the locking groove. At this time, the filter plate can be removed from the exhaust pipe, which is convenient for locking the filter plate and improves stability. However, when replacing the filter plate, this application needs to stop the machine for disassembly and replacement, which affects the continuity and efficiency of the work. Further improvements can be made. At the same time, after the absorption liquid is saturated, it needs to be stopped for replacement and processing, which also affects the work efficiency. Further improvements can be made.

[0004] Currently, no effective solutions have been proposed for the problems in related technologies. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the deficiencies in the prior art, the present invention provides a steelmaking tail gas treatment device, which has the advantages of being easy to use and having high treatment efficiency, thereby solving the problems in the above-mentioned background technology.

[0007] (2) Technical solution

[0008] In order to achieve the above advantages of convenient use and high processing efficiency, the specific technical solutions adopted by the utility model are as follows:

[0009] A steelmaking tail gas treatment device comprises a treatment tank and a filter cartridge, wherein a diverter ring is fixedly provided inside the treatment tank, and a diverter pipe is connected to the bottom surface of the diverter ring, and a nozzle is installed on the surface of the diverter pipe, a heating wire is fixedly installed inside the diverter pipe, a gas transmission channel is penetrated through the diverter ring on the inside of the diverter pipe, and a filter cartridge is connected to the top surface of the gas transmission channel, and an air intake pipe is connected to the top surface of the filter cartridge directly above the gas transmission channel, a bend pipe is connected to the surface of the gas transmission channel on the side of the nozzle, a central axis is rotatably connected to the inside of the filter cartridge, and a partition is fixedly installed on the surface of the central axis, and filter cotton is inserted into the filter cartridge between the partitions, a top cover is hingedly connected to the top surface of the filter cartridge by a hinge, an exhaust pipe is connected to the bottom of the treatment tank, an upper orifice plate and a lower orifice plate are fixedly installed on the top and bottom surfaces of the filter cotton respectively, and a handle is fixedly installed on the top surface of the upper orifice plate.

[0010] Furthermore, the bending angle of the bent pipe is 90°, and the opening at the other end of the bent pipe is vertically downward.

[0011] Furthermore, the nozzles and the curved pipes are evenly arranged in multiple groups from top to bottom, and the diverter pipes are evenly arranged in multiple groups along the central axis of the diverter ring.

[0012] Furthermore, a liquid inlet pipe is connected through the top surface of the diverter ring, and the liquid inlet pipe is connected through the absorption liquid pumping equipment.

[0013] Furthermore, a drain pipe is connected through the bottom surface of the processing tank, and a solenoid valve is installed on the surface of the drain pipe.

[0014] Furthermore, a liquid level switch is fixedly installed at the bottom of the processing tank, and the output end of the liquid level switch is electrically connected to the input end of the solenoid valve.

[0015] Furthermore, a handwheel is fixedly connected to the bottom surface of the central shaft, and the central shaft is rotatably connected to the filter cartridge via a sealed bearing.

[0016] Furthermore, a handle is fixedly mounted on the top surface of the top cover, and the top cover is fixedly connected to the filter cartridge via a spring lock.

[0017] (3) Beneficial effects

[0018] Compared with the prior art, the present invention provides a steelmaking tail gas treatment device with the following beneficial effects:

[0019] (1) The utility model adopts a filter cartridge, which is equipped with a central axis and partitions that can be rotated by a hand wheel. Filter cotton is inserted between the partitions. The steelmaking exhaust gas enters the filter cartridge through the air intake pipe and enters between the partitions. After being filtered by the filter cotton, it enters the treatment tank along the air transmission channel for treatment. After the filter cotton is saturated, the staff can turn the hand wheel to rotate the filter cotton that is not involved in the filtration to between the air intake pipe and the air transmission channel. Then, the top cover can be opened and the saturated filter cotton can be taken out by hand with a handle for replacement. There is no need to stop the machine for replacement, which is convenient for continuous work and improves work efficiency and convenience of use.

[0020] (2) The utility model adopts a diversion pipe, a nozzle and a bend pipe. The filtered exhaust gas enters the gas pipeline and is sprayed downward through the bend pipe. The absorption liquid enters the diversion pipe along the diversion ring through the liquid inlet pipe. After being quickly heated by the heating wire, it is sprayed toward the exhaust gas along the nozzle. The dispersed absorption liquid quickly collides with the exhaust gas for absorption. The exhaust gas and the absorption liquid are highly dispersed, and the exhaust gas absorption is more comprehensive and efficient, thereby improving the exhaust gas treatment efficiency. At the same time, the absorption liquid that absorbs the exhaust gas is directly discharged, avoiding the trouble of stopping the machine for replacement, and further improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a schematic diagram of the internal structure of a steelmaking tail gas treatment device proposed by the utility model;

[0023] Figure 2 This is a front view of a steelmaking tail gas treatment device proposed by the utility model;

[0024] Figure 3 The utility model is a schematic diagram of the external structure of a steelmaking tail gas treatment device.

[0025] Figure 4 It is an AA cross-sectional view of a steelmaking tail gas treatment device proposed by the utility model.

[0026] In the picture:

[0027] 1. Treatment tank; 2. Diverter ring; 3. Diverter pipe; 4. Heating wire; 5. Nozzle; 6. Elbow pipe; 7. Exhaust pipe; 8. Liquid level switch; 9. Drain pipe; 10. Solenoid valve; 11. Gas transmission channel; 12. Inlet pipe; 13. Filter cartridge; 14. Upper orifice plate; 15. Lower orifice plate; 16. Handwheel; 17. Center shaft; 18. Filter cotton; 19. Top cover; 20. Hinge; 21. Handle; 22. Carrying handle; 23. Liquid inlet pipe; 24. Partition. DETAILED DESCRIPTION

[0028] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. By referring to these contents, ordinary technicians in this field should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0029] According to an embodiment of the present utility model, a steelmaking tail gas treatment device is provided.

[0030] The present invention will now be further described with reference to the accompanying drawings and specific embodiments. Figure 1-4As shown, a steelmaking tail gas treatment device according to an embodiment of the present invention includes a treatment tank 1 and a filter cartridge 13. A diverter ring 2 is fixedly mounted inside the treatment tank 1. The diverter ring 2 is coaxially arranged with the treatment tank 1, and a diverter pipe 3 is connected to the bottom surface of the diverter ring 2, and a nozzle 5 is installed on the surface of the diverter pipe 3. A heating wire 4 is fixedly installed inside the diverter pipe 3. A gas transmission channel 11 is penetrated through the diverter ring 2 on the inner side of the diverter pipe 3, and a filter cartridge 13 is connected to the top surface of the gas transmission channel 11. An air intake pipe 12 is connected to the top surface of the filter cartridge 13 directly above the gas transmission channel 11, and a bend pipe 6 is connected to the surface of the gas transmission channel 11 on one side of the nozzle 5. A central axis 17 is rotatably connected to the inside of the filter cartridge 13, and a partition 24 is fixedly mounted on the surface of the central axis 17. The partition 24 slides against the inner wall of the filter cartridge 13, and filter cotton 18 is inserted into the filter cartridge 13 between the partitions 24. The top surface of the filter cartridge 13 is hinged by a hinge 20 There is a top cover 19, and the bottom of the processing tank 1 is connected with an exhaust pipe 7. The upper and bottom surfaces of the filter cotton 18 are fixedly installed with an upper orifice plate 14 and a lower orifice plate 15 respectively, and the top surface of the upper orifice plate 14 is fixedly installed with a handle 22. The handle 22 is convenient for taking out the filter cotton 18. The filter cartridge 13 is equipped with a central shaft 17 and a partition 24 that can be rotated by a hand wheel 16. The filter cotton 18 is inserted between the partitions 24. The steelmaking exhaust gas enters the filter cartridge 13 through the intake pipe 12 and enters between the partitions 24. After being filtered by the filter cotton 18, it enters the processing tank 1 along the gas transmission channel 11 for treatment. After the filter cotton 18 is saturated, the staff can rotate the hand wheel 16 to rotate the filter cotton 18 that is not involved in the filtration to between the intake pipe 12 and the gas transmission channel 11. Then, the top cover 19 can be opened, and the saturated filter cotton 18 can be taken out by hand with the handle 22 for replacement. There is no need to stop the machine for replacement, which is convenient for continuous work, thereby improving work efficiency and convenience of use.

[0031] In one embodiment, the bending angle of the elbow 6 is 90°, and the opening at the other end of the elbow 6 is vertically downward to prevent the absorption liquid from entering the gas transmission channel 11.

[0032] In one embodiment, the nozzles 5 and the bends 6 are evenly arranged in multiple groups from top to bottom, and the diverter pipes 3 are evenly spaced along the center axis 17 of the diverter ring 2 in multiple groups to improve the uniformity of the distribution of gas and absorption liquid. The filtered exhaust gas enters the gas pipeline and is sprayed downward through the bend 6. The absorption liquid enters the diverter pipe 3 along the diverter ring 2 through the liquid inlet pipe 23. After rapid heating by the heating wire 4, it is sprayed toward the exhaust gas along the nozzle 5. The dispersed absorption liquid quickly collides and contacts with the exhaust gas for absorption. The exhaust gas and the absorption liquid are highly dispersed, and the exhaust absorption is more comprehensive and efficient, thereby improving the exhaust gas treatment efficiency. At the same time, the absorption liquid that absorbs the exhaust gas is directly discharged, avoiding the trouble of shutdown and replacement, and further improving work efficiency.

[0033] In one embodiment, a liquid inlet pipe 23 is connected through the top surface of the diverter ring 2, and the liquid inlet pipe 23 is connected through the absorption liquid pumping equipment, which is a common pumping structure and is not shown in detail in the figure.

[0034] In one embodiment, a drain pipe 9 is connected to the bottom of the treatment tank 1, and a solenoid valve 10 is installed on the surface of the drain pipe 9, wherein a liquid level switch 8 is fixedly installed on the bottom of the treatment tank 1, and the output end of the liquid level switch 8 is electrically connected to the input end of the solenoid valve 10. When the liquid level switch 8 triggers the solenoid valve 10 to open, the liquid level is lower than the bottom height of the exhaust pipe 7, and when the liquid level switch 8 triggers the solenoid valve 10 to close, the liquid level is higher than the top height of the drain pipe 9, thereby preventing exhaust gas from leaking along the drain pipe 9 and automatically controlling the drainage liquid level.

[0035] In one embodiment, a handwheel 16 is fixedly connected to the bottom surface of the central shaft 17 , and the central shaft 17 is rotatably connected to the filter cartridge 13 via a sealed bearing, so that the handwheel 16 facilitates the rotation of the central shaft 17 .

[0036] In one embodiment, a handle 21 is fixedly installed on the top surface of the top cover 19, and the top cover 19 is fixedly connected to the filter cartridge 13 through a spring lock. The handle 21 facilitates opening the top cover 19, and the spring lock facilitates locking the top cover 19 to prevent air leakage. The spring lock is a common structure and is not shown in the figure.

[0037] Working principle:

[0038] The filter cartridge 13 is internally provided with a central shaft 17 and a partition 24 which can be rotated by a hand wheel 16. The filter cotton 18 is inserted between the partitions 24. The steelmaking tail gas enters the filter cartridge 13 through the air inlet pipe 12 and enters between the partitions 24. After being filtered by the filter cotton 18, it enters the treatment tank 1 along the air transmission channel 11 for treatment. After the filter cotton 18 is saturated, the staff can rotate the hand wheel 16 to rotate the filter cotton 18 that is not involved in the filtration to between the air inlet pipe 12 and the air transmission channel 11. Then, the top cover 19 can be opened and the saturated filter cotton 18 can be taken out by the carrying handle 22 for replacement. There is no need to stop the machine for replacement. The machine is convenient for continuous operation, which improves work efficiency and convenience of use. At the same time, the filtered exhaust gas enters the gas pipeline and is sprayed downward through the bend pipe 6. The absorption liquid passes through the liquid inlet pipe 23 and enters the diverter pipe 3 along the diverter ring 2. After rapid heating by the heating wire 4, it is sprayed toward the exhaust gas along the nozzle 5. The dispersed absorption liquid quickly collides and contacts with the exhaust gas for absorption. The exhaust gas and the absorption liquid have a high degree of dispersion, and the exhaust gas absorption is more comprehensive and efficient, which improves the exhaust gas treatment efficiency. At the same time, the absorption liquid that absorbs the exhaust gas is directly discharged, which avoids the trouble of stopping the machine for replacement and further improves work efficiency.

[0039] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A steelmaking tail gas treatment device, characterized in that: The invention comprises a treatment tank (1) and a filter cartridge (13), wherein a diverter ring (2) is fixedly mounted inside the treatment tank (1), and a diverter pipe (3) is connected to the bottom surface of the diverter ring (2), and a nozzle (5) is installed on the surface of the diverter pipe (3), a heating wire (4) is fixedly installed inside the diverter pipe (3), an air delivery channel (11) is provided on the inner side of the diverter pipe (3) through the diverter ring (2), and the top surface of the air delivery channel (11) is connected to the filter cartridge (13), and an air inlet pipe (12) is connected to the top surface of the filter cartridge (13) just above the air delivery channel (11), and the surface of the air delivery channel (11) is fixedly mounted on the bottom surface of the diverter pipe (3), and a heating wire (4) is fixedly installed inside the diverter pipe (3), and an air delivery channel (11) is provided through the inner side of the diverter pipe (3) through the diverter ring (2), and the top surface of the air delivery channel (11) is connected to the filter cartridge (13), and an air inlet pipe (12) is connected to the top surface of the filter cartridge (13) just above the air delivery channel (11), and the surface of the air delivery channel (11) is fixedly mounted on the bottom surface of the diverter pipe (12), and the surface of the diverter pipe (11) is fixedly mounted on the bottom surface of the diverter pipe (11), and a heating wire (4) is fixedly installed inside the diverter pipe (3), and an air delivery channel (11) is provided through the inner side of the diverter pipe (3) through the diverter ring (2), and the top surface of the filter cartridge (13) is connected to the filter cartridge (13), and the surface of the filter cartridge (13) is fixedly mounted on the bottom surface of the filter cartridge (13), and a heating wire (4) is fixedly installed inside the diverter pipe (3), A curved pipe (6) is connected through one side of the nozzle (5), a central shaft (17) is rotatably connected inside the filter cartridge (13), a partition (24) is fixedly installed on the surface of the central shaft (17), and filter cotton (18) is inserted inside the filter cartridge (13) between the partitions (24), a top cover (19) is hingedly connected to the top surface of the filter cartridge (13) through a hinge (20), an exhaust pipe (7) is connected through the bottom of the treatment tank (1), an upper orifice plate (14) and a lower orifice plate (15) are fixedly installed on the top and bottom surfaces of the filter cotton (18), and a handle (22) is fixedly installed on the top surface of the upper orifice plate (14).

2. The steelmaking tail gas treatment device according to claim 1, characterized in that: The bending angle of the curved pipe (6) is 90°, and the opening at the other end of the curved pipe (6) is vertically downward.

3. The steelmaking tail gas treatment device according to claim 1, characterized in that: The nozzles (5) and the curved pipes (6) are evenly arranged in multiple groups from top to bottom, and the diverter pipes (3) are evenly arranged in multiple groups along the center axis (17) of the diverter ring (2).

4. The steelmaking tail gas treatment device according to claim 1, characterized in that: The top surface of the diverter ring (2) is connected through a liquid inlet pipe (23), and the liquid inlet pipe (23) is connected through the absorption liquid pumping equipment.

5. The steelmaking tail gas treatment device according to claim 1, characterized in that: A drainage pipe (9) is connected through the bottom surface of the treatment tank (1), and a solenoid valve (10) is installed on the surface of the drainage pipe (9).

6. The steelmaking tail gas treatment device according to claim 5, characterized in that: A liquid level switch (8) is fixedly installed at the bottom of the processing tank (1), and the output end of the liquid level switch (8) is electrically connected to the input end of the electromagnetic valve (10).

7. The steelmaking tail gas treatment device according to claim 1, characterized in that: The bottom surface of the central shaft (17) is fixedly connected with a hand wheel (16), and the central shaft (17) is rotatably connected to the filter cartridge (13) via a sealed bearing.

8. The steelmaking tail gas treatment device according to claim 1, characterized in that: A handle (21) is fixedly mounted on the top surface of the top cover (19), and the top cover (19) is fixedly connected to the filter cartridge (13) via a spring lock.

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