Converter flue gas dry dedusting system

Abstract

The utility model relates to a converter flue gas dry dedusting system, which comprises an evaporative cooling flue, an evaporative cooler, an electrostatic precipitator, a fan and a diffusion chimney, the diffusion chimney comprises a cylindrical section and a conical section, a horizontal guide cylinder is arranged on the outer side of the lower part of the cylindrical section, and a first guide pipe and a second guide pipe are arranged in the guide cylinder; one end of the first flow guide pipe is arranged on the inner wall of the end, far away from the cylinder section, of the flow guide cylinder, and a gap is reserved between the other end of the first flow guide pipe and the inner wall of the end, close to the cylinder section, of the flow guide cylinder; two circular supporting net plates are arranged in the first flow guide pipe, two annular supporting net plates are arranged between the first flow guide pipe and the second flow guide pipe and between the second flow guide pipe and the flow guide cylinder, and first activated carbon is filled between the supporting net plates. The activated carbon dust removal mechanism is additionally arranged on the lower portion of the diffusion chimney to guarantee the overall dust removal quality, and the device is more practical.

Description

Technical Field

[0001] The utility model belongs to the technical field of flue gas treatment, and in particular relates to a converter flue gas dry dust removal system. Background Art

[0002] At present, the dry dust removal process of converter flue gas is mainly as follows: the temperature of the flue gas generated by the converter is 1400-1650℃, the flue gas is captured by the active smoke hood at the furnace mouth and cooled to about 1100℃ (peak 1150℃) through the vaporization cooling flue, and then enters the evaporative cooler for water spray cooling, tempering, and rough dust removal. After the flue gas temperature drops to about 200℃, it enters the electrostatic precipitator through the pipeline for fine dust removal. The flue gas after fine dust removal enters the pipeline at the rear of the fan through the fan, and is transported to the discharge chimney through the pipeline, ignited and burned, and then discharged into the atmosphere. However, in actual processing, the electrostatic precipitator has the problem of deflagration or explosion relief, and deflagration or explosion relief will cause the local temperature in the system to rise rapidly, the gas expansion will produce air waves, and the flow rate of some flue gas is too fast and cannot be completely purified. The dust inside the electrostatic precipitator will be affected by its impact force, which will cause the dust emission of the discharge chimney to exceed the standard, and there will be fluctuations in dust emission or short-term excessive smoke. It does not meet the environmental protection requirements and needs to be improved. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a converter flue gas dry dust removal system, which can solve the above-mentioned problems by adding an activated carbon dust removal mechanism at the lower part of the discharge chimney to ensure the overall dust removal quality.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a converter flue gas dry dust removal system, comprising a vaporization cooling flue, an evaporative cooler, an electrostatic precipitator, a fan and a diffusion chimney, the air outlet of the vaporization cooling flue is connected with the air inlet of the evaporative cooler, the air outlet of the evaporative cooler is connected with the air inlet of the electrostatic precipitator, the air inlet of the electrostatic precipitator is connected with the air inlet of the fan, the diffusion chimney comprises a cylindrical section and a conical section fixedly mounted above the cylindrical section, the cylindrical A horizontal flow guide cylinder is provided on the outer side of the lower part of the section, and a first flow guide pipe and a second flow guide pipe are provided in the flow guide cylinder, one end of the first flow guide pipe is coaxially fixed on the inner wall of the end of the flow guide cylinder away from the cylindrical section, and a gap is left between the other end and the inner wall of the end of the flow guide cylinder close to the cylindrical section, the end wall of the flow guide cylinder on the inner side of the fixed end of the first flow guide pipe is detachably connected to the air outlet of the fan, and the second flow guide pipe is sleeved on the outer side of the first flow guide pipe and one end of the second flow guide pipe is coaxially fixed on the inner wall of the end of the flow guide cylinder close to the cylindrical section, and the other end is connected to the inner wall of the end of the flow guide cylinder close to the cylindrical section. A gap is left between the inner walls of one end of the guide tube away from the cylindrical section, the end wall of the guide tube outside the fixed end of the second guide tube is connected to the side of the cylindrical section through a plurality of delivery pipes evenly spaced at circumferential intervals, two circular support mesh plates are sleeved in the first guide tube, two annular support mesh plates are sleeved in the gap between the first guide tube and the second guide tube and in the gap between the second guide tube and the guide tube, the first activated carbon is filled between the circular support mesh plates and between the annular support mesh plates, the cylindrical A shaft sleeve is coaxially fixedly mounted in the upper part of the segment, a rotating shaft is coaxially penetrated through the shaft sleeve and rotatably provided, an impeller is coaxially fixedly connected to the bottom end of the rotating shaft, a plurality of groups of main net cylinders are distributed at intervals in the upper and lower parts of the rotating shaft, each group of main net cylinders has a plurality of main net cylinders and are distributed in a circular pattern, a plurality of sub-net cylinders are fixedly connected on the upper and lower sides of each main net cylinder, the main net cylinders and the sub-net cylinders are filled with the second activated carbon, the top of the cylindrical segment is detachably connected to the bottom of the conical segment, and an igniter is provided in the conical segment.

[0005] Preferably, the air outlet of the fan is connected with a first hose, and the first hose is connected with the end wall of the guide tube inside the fixed end of the first guide tube through a first quick connector.

[0006] Preferably, a lower flange is fixedly provided on the outer side of the top of the cylindrical section, and a mounting plate is fixedly provided on the left and right sides of the top of the lower flange along the front-to-back direction, and a plurality of first through holes evenly distributed in a rectangular array are opened on the mounting plate, and an upper flange is fixedly provided on the outer side of the bottom of the conical section, and mounting grooves are opened on the left and right sides of the bottom of the upper flange along the front-to-back direction, and a plurality of second through holes are opened on the groove wall on one side of the mounting groove away from the conical section, and a plurality of blind holes are opened on the groove wall on the other side, and electric push rods are horizontally fixedly provided on the left and right sides of the top of the upper flange, and the telescopic ends of the two electric push rods are arranged back to back and fixedly connected with a movable plate, and a plurality of fixing rods are fixedly provided on the side of the lower part of the movable plate close to the conical section, the lower flange is adapted to and abuts against the upper flange, and the mounting plate is adapted to and plugged into the mounting groove on the same side, the first through hole corresponds one-to-one with the second through hole, the blind hole and the fixing rod on the same side, and the fixing rod passes through the corresponding first through hole and the second through hole and is plugged into the corresponding blind hole.

[0007] Preferably, a guide rail is fixedly provided horizontally along the front-rear direction below the cylindrical section, a sliding base is slidably provided on the guide rail, and the cylindrical section is fixed on the sliding base.

[0008] Preferably, the air outlet of the evaporative cooler is connected to a second hose, the second hose is connected to the air inlet of the electrostatic precipitator through a second quick connector, the air inlet of the fan is connected to a third hose, the third hose is connected to the air outlet of the electrostatic precipitator through a third quick connector.

[0009] Preferably, the electrostatic precipitator is fixedly mounted on a mobile base, and an inverted U-shaped support plate is fixedly provided on the left and right sides of the top of the mobile base in the front-to-back direction, a through groove is provided on the inner side of the support plate corresponding to the mobile base, and a hydraulic cylinder is vertically fixed on the horizontal part of the support plate, the piston rod of the hydraulic cylinder is downward and fixedly connected to a lifting plate, the lifting plate can pass through the through groove and casters are provided on the front and rear sides of the bottom of the lifting plate.

[0010] The utility model has the following beneficial effects: when in use, the vaporization cooling flue is connected to the movable smoke hood at the existing converter furnace mouth, and the flue gas generated by the converter can be captured by the movable smoke hood through the furnace mouth and cooled to about 1100°C (peak 1150°C) through the vaporization cooling flue, and then enter the evaporative cooler for water spray cooling, tempering, and rough dust removal. After the flue gas temperature drops to about 200°C, it enters the electrostatic precipitator through the pipeline for fine dust removal. The flue gas after fine dust removal enters the guide tube on the vent chimney through the fan. After the flue gas enters the guide tube, it first flows in the first guide tube toward the direction of the free end of the first guide tube, so that the first activated carbon between the two circular support mesh plates in the first guide tube can be used to achieve a primary adsorption and purification treatment of the flue gas. Then, the flue gas flows to the second guide tube, and can be reversed to flow toward the direction of the free end of the second guide tube, so that the first activated carbon between the two annular support mesh plates in the gap between the second guide tube and the first guide tube can be used to achieve a second adsorption and purification treatment of the flue gas. Next, the flue gas flows to the guide tube and can be reversed to flow in the direction of the delivery pipe, so that the third adsorption and purification treatment of the flue gas can be achieved through the first activated carbon between the two annular support mesh plates in the gap between the second guide tube and the guide tube. After that, the flue gas can enter the cylindrical section of the emission chimney through the delivery pipe and flow from bottom to top. During the process, the impeller can rotate under the impetus of the flue gas and drive the rotating shaft connected to it to rotate synchronously, so as to drive the overall turnover of multiple groups of main mesh cylinders on the rotating shaft, and then through multiple groups of rotating main mesh cylinders and the second activated carbon in multiple sub-mesh cylinders on each main mesh cylinder, further comprehensive contact adsorption and purification treatment of the flue gas can be achieved. Finally, the flue gas flows up to the conical section of the emission chimney, and is ignited and burned by the igniter and then discharged into the atmosphere. Thus, through this system, after the flue gas enters the discharge chimney and before ignition and combustion, the flue gas can be treated with multiple diversion adsorption purification treatments and stirred comprehensive contact adsorption purification treatments, so that the dust generated by the deflagration or explosion venting of the electrostatic precipitator can be fully removed, avoiding the occurrence of dust emission fluctuations or short-term excessive smoke, and the overall dust removal quality is higher, which is more conducive to meeting environmental protection requirements;

[0011] In addition, the detachable connection arrangement between the guide tube and the fan, and the detachable connection arrangement between the cylindrical section and the conical section, can facilitate the convenient disassembly and assembly of the cylindrical section and the guide tube thereon as a whole in actual use, and can realize flexible replacement of the first activated carbon and the second activated carbon, thereby better ensuring the effect and quality of adsorption and dust removal, and the overall use is more flexible, convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a main structural schematic diagram of the utility model;

[0013] Figure 2 This is a schematic diagram of the main structure of the cylindrical section of the utility model;

[0014] Figure 3 It is a schematic diagram of the top view of the cylinder section of the utility model;

[0015] Figure 4 It is a schematic diagram of the main structure of the cone section of the utility model;

[0016] Figure 5 It is a schematic diagram of the structure of the cone section of the utility model when viewed from above;

[0017] Figure 6 This is a schematic diagram of the main structure of the connection between the cylindrical section and the conical section of the utility model;

[0018] Figure 7 It is a left-side structural schematic diagram of the mobile base of the utility model.

[0019] In the figure, the numbers are: 1 is the vaporization cooling flue, 2 is the evaporative cooler, 3 is the electrostatic precipitator, 4 is the fan, 5 is the emission chimney, 6 is the cylindrical section, 7 is the conical section, 8 is the guide tube, 9 is the first guide tube, 10 is the second guide tube, 11 is the conveying pipe, 12 is the circular support mesh plate, 13 is the annular support mesh plate, 14 is the first activated carbon, 15 is the shaft sleeve, 16 is the rotating shaft, 17 is the impeller, 18 is the main mesh tube, 19 is the sub-mesh tube, 20 is the second activated carbon, 21 is the igniter, 22 is the first hose, 2 3 is the first quick connector, 24 is the lower flange, 25 is the mounting plate, 26 is the first through hole, 27 is the upper flange, 28 is the mounting groove, 29 is the second through hole, 30 is the blind hole, 31 is the electric push rod, 32 is the movable plate, 33 is the fixed rod, 34 is the guide rail, 35 is the sliding base, 36 is the second hose, 37 is the second quick connector, 38 is the third hose, 39 is the third quick connector, 40 is the mobile base, 41 is the support plate, 42 is the through groove, 43 is the hydraulic cylinder, 44 is the lifting plate, and 45 is the caster. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods:

[0021] like Figures 1 to 7As shown, a converter flue gas dry dust removal system comprises a vaporization cooling flue 1, an evaporative cooler 2, an electrostatic precipitator 3, a fan 4 and a venting chimney 5, wherein the gas outlet of the vaporization cooling flue 1 is connected with the gas inlet of the evaporative cooler 2, the gas outlet of the evaporative cooler 2 is connected with the gas inlet of the electrostatic precipitator 3, the gas inlet of the electrostatic precipitator 3 is connected with the gas inlet of the fan 4, and the venting chimney 5 comprises a cylindrical section 6 and a conical section 7 fixedly mounted above the cylindrical section 6. A horizontal guide tube 8 is arranged on the outer side of the lower part of the cylindrical section 6, and a first guide tube 9 and a second guide tube 10 are arranged inside the guide tube 8, one end of the first guide tube 9 is coaxially fixed on the inner wall of one end of the guide tube 8 away from the cylindrical section 6, and a gap is left between the other end and the inner wall of one end of the guide tube 8 close to the cylindrical section 6, and the end wall of the guide tube 8 on the inner side of the fixed end of the first guide tube 9 is detachably connected with the gas outlet of the fan 4. The second flow guide pipe 10 is sleeved on the outside of the first flow guide pipe 9, and one end of the second flow guide pipe 10 is coaxially fixed on the inner wall of the end of the flow guide tube 8 close to the cylindrical section 6, and a gap is left between the other end and the inner wall of the end of the flow guide tube 8 away from the cylindrical section 6. The end wall of the flow guide tube 8 outside the fixed end of the second flow guide pipe 10 is connected to the side of the cylindrical section 6 through a number of delivery pipes 11 evenly spaced at circumferential intervals. Two circular support mesh plates 12 are sleeved in the first flow guide pipe 9, and two annular support mesh plates 13 are sleeved in the gap between the first flow guide pipe 9 and the second flow guide pipe 10 and the gap between the second flow guide pipe 10 and the flow guide tube 8. The first activated carbon 14 is filled between the circular support mesh plates 12 and the annular support mesh plates 13. A shaft sleeve 15 is coaxially fixedly mounted in the upper part of the cylindrical section 6, a rotating shaft 16 is coaxially penetrated and rotatably mounted on the shaft sleeve 15, an impeller 17 is coaxially fixedly connected to the bottom end of the rotating shaft 16, a plurality of groups of main net cylinders 18 are distributed at intervals in the upper and lower parts of the rotating shaft 16, each group of main net cylinders 18 has a plurality of main net cylinders 18 and are distributed at intervals in a circle, a plurality of sub-net cylinders 19 are fixedly connected to the upper and lower sides of each main net cylinder 18, and the main net cylinders 18 and the sub-net cylinders 19 are filled with second activated carbon 20. The top of the cylindrical section 6 is detachably connected to the bottom of the conical section 7, and an igniter 21 is arranged in the conical section 7;

[0022] When in use, the vaporization cooling flue 1 is connected to the active smoke hood at the existing converter furnace mouth. The flue gas generated by the converter can be captured by the active smoke hood through the furnace mouth and cooled to about 1100°C (peak 1150°C) through the vaporization cooling flue 1, and then enter the evaporative cooler 2 for water spray cooling, tempering, and rough dust removal. After the flue gas temperature drops to about 200°C, it enters the electrostatic precipitator 3 through the pipeline for fine dust removal. The flue gas after fine dust removal enters the guide tube 8 on the emission chimney 5 through the fan 4. After entering the guide tube 8, the flue gas first flows in the first guide tube 9 toward the direction of the free end of the first guide tube 9, so that the first activated carbon 14 between the two circular support mesh plates 12 in the first guide tube 9 can achieve a primary adsorption and purification treatment of the flue gas. Then, the flue gas flows to the second guide pipe 10, and can be switched to flow in the direction of the free end of the second guide pipe 10, so that the flue gas can be adsorbed and purified again by the first activated carbon 14 between the two annular support mesh plates 13 in the gap between the second guide pipe 10 and the first guide pipe 9. Then, the flue gas flows to the guide tube 8, and can be switched to flow in the direction of the delivery pipe 11, so that the flue gas can be adsorbed and purified for the third time by the first activated carbon 14 between the two annular support mesh plates 13 in the gap between the second guide pipe 10 and the guide tube 8. Afterwards, the flue gas can enter the cylindrical section 6 of the emission chimney 5 through the delivery pipe 11 and flow from bottom to top. During the process, the impeller 17 can rotate under the impetus of the flue gas and drive the rotating shaft 16 connected thereto to rotate synchronously, thereby driving the multiple groups of main net cylinders 18 on the rotating shaft 16 to rotate as a whole, and then can achieve further comprehensive contact adsorption purification treatment of the flue gas through the multiple groups of rotating main net cylinders 18 and the second activated carbon 20 in the multiple sub-net cylinders 19 on each main net cylinder 18. Finally, the flue gas flows up to the conical section 7 of the emission chimney 5, and is discharged into the atmosphere after being ignited and burned by the igniter 21. Thus, through this system, after the flue gas enters the emission chimney 5 and before the ignition and combustion, the flue gas can be subjected to multiple diversion adsorption purification treatments and stirring comprehensive contact adsorption purification treatments, so that the dust generated by the deflagration or explosion venting of the electrostatic precipitator 3 can be fully removed, avoiding the occurrence of dust emission fluctuations or short-term excessive smoke, and the overall dust removal quality is higher, which is more conducive to meeting environmental protection requirements;

[0023] In addition, the detachable connection between the guide tube 8 and the fan 4 and the detachable connection between the cylindrical section 6 and the conical section 7 can be used to conveniently disassemble and assemble the cylindrical section 6 and the guide tube 8 thereon in an integrated manner in actual use, and can realize flexible replacement of the first activated carbon 14 and the second activated carbon 20, thereby better ensuring the effect and quality of adsorption and dust removal, and the overall use is more flexible, convenient and practical. The vaporization cooling flue 1, the evaporative cooler 2, the electrostatic precipitator 3, the fan 4, the impeller 17 and the igniter 21 can all adopt the existing technology, and their specific structure and working principle will not be described in detail here.

[0024] In this embodiment, a first hose 22 is connected to the air outlet of the fan 4, and the first hose 22 is connected to the end wall of the guide tube 8 on the inner side of the fixed end of the first guide tube 9 through a first quick connector 23, so that in actual use, the guide tube 8 and the fan 4 can be quickly connected and disconnected through the cooperation of the first quick connector 23 and the first hose 22, thereby ensuring the quick disassembly, assembly and replacement of the entire cylindrical section 6.

[0025] In this embodiment, a lower flange 24 is fixedly provided on the outer side of the top of the cylindrical section 6, and mounting plates 25 are fixedly provided on both the left and right sides of the top of the lower flange 24 along the front-to-back direction, and a plurality of first through holes 26 are evenly distributed in a rectangular array on the mounting plate 25. An upper flange 27 is fixedly provided on the outer side of the bottom of the conical section 7, and mounting grooves 28 are opened on both the left and right sides of the bottom of the upper flange 27 along the front-to-back direction, and a plurality of second through holes 29 are opened on the groove wall of the mounting groove 28 away from the conical section 7, and a plurality of blind holes 30 are opened on the groove wall of the other side, and electric push rods 31 are fixedly provided horizontally on both the left and right sides of the top of the upper flange 27, and the telescopic ends of the two electric push rods 31 are arranged opposite to each other and fixedly connected to movable plates 32, and a plurality of fixing rods 33 are fixedly provided on the lower part of the movable plate 32 close to the conical section 7. The lower flange 24 is adapted to and abuts against the upper flange 27, the mounting plate 25 is adapted to and inserted into the mounting groove 28 on the same side, the first through hole 26 corresponds to the second through hole 29, the blind hole 30 and the fixing rod 33 on the same side, and the fixing rod 33 passes through the corresponding first through hole 26 and the second through hole 29 and is inserted into the corresponding blind hole 30;

[0026] During use, when the first activated carbon 14 and the second activated carbon 20 need to be replaced, the connection between the guide tube 8 and the fan 4 can be disconnected through the first quick connector 23 in the shutdown state, and then the two electric push rods 31 are operated to extend the telescopic ends thereof, driving the movable plate 32 away from the upper flange 27, until the fixing rod 33 is completely withdrawn from the corresponding first through hole 26, and the plug-in fixation of the mounting plate 25 can be released. Then, the entire cylindrical section 6 is moved forward or backward to completely remove the mounting plate 25 from the corresponding mounting groove 28, and the original cylindrical section 6 can be disassembled. Next, after taking the new cylindrical section 6, first align the two mounting plates 25 on it with the corresponding mounting grooves 28 and plug them into place, so that the upper flange 27 and the lower flange 24 are aligned and abutted, and then operate the two electric push rods 31 to shrink the telescopic ends, drive the movable plate 32 close to the upper flange 27, until the fixing rod 33 passes through the corresponding first through hole 26 and the second through hole 29 and plugs into the corresponding blind hole 30, plug and fix the mounting plate 25, and the fixed installation of the new cylindrical section 6 can be completed, and the installation is stable and does not affect the subsequent use. After that, the guide tube 8 is connected to the air outlet of the fan 4 again through the first quick connector 23, and it can continue to be used. In this way, the cylindrical section 6 and the guide tube 8 thereon can be conveniently disassembled and assembled as a whole, and the first activated carbon 14 and the second activated carbon 20 can be flexibly replaced, so as to better ensure the effect and quality of adsorption and dust removal, and the overall use is more flexible, convenient and practical.

[0027] In this embodiment, a guide rail 34 is fixedly provided horizontally below the cylindrical section 6 along the front-to-back direction, a sliding base 35 is slidably provided on the guide rail 34, and the cylindrical section 6 is fixed on the sliding base 35, thereby realizing flexible movement of the entire cylindrical section 6 along the front-to-back direction, making it easier to control the movement in and out and quick positioning of the cylindrical section 6 when disassembling and assembling the cylindrical section 6, thereby reducing the difficulty of disassembling and assembling the cylindrical section 6, and making it more convenient and practical.

[0028] In this embodiment, a second hose 36 is connected to the air outlet of the evaporative cooler 2, and the second hose 36 is connected to the air inlet of the electrostatic precipitator 3 through a second quick connector 37. A third hose 38 is connected to the air inlet of the fan 4, and the third hose 38 is connected to the air outlet of the electrostatic precipitator 3 through a third quick connector 39, so that in actual use, the air inlet of the electrostatic precipitator 3 and the air outlet of the evaporative cooler 2 can be quickly connected and disconnected through the cooperation between the second quick connector 37 and the second hose 36, and the air outlet of the electrostatic precipitator 3 and the air inlet of the fan 4 can be quickly connected and disconnected through the cooperation between the third quick connector 39 and the third hose 38, so that the electrostatic precipitator 3 can be flexibly disassembled, assembled and replaced when a problem occurs in the electrostatic precipitator 3, making the use of the entire system more flexible and convenient.

[0029] In this embodiment, the electrostatic precipitator 3 is fixedly mounted on a movable base 40, and an inverted U-shaped support plate 41 is fixedly provided on the left and right sides of the top of the movable base 40 along the front-to-back direction, and a through groove 42 is provided on the inner side of the support plate 41 corresponding to the movable base 40, and a hydraulic cylinder 43 is vertically fixedly provided on the horizontal part of the support plate 41, and the piston rod of the hydraulic cylinder 43 faces downward and is fixedly connected to a lifting plate 44, which can pass through the through groove 42 and casters 45 are provided on the front and back sides of the bottom of the lifting plate 44. In actual use, when the electrostatic precipitator 3 has a problem and needs to be repaired or replaced, the connection between the electrostatic precipitator 3 and the evaporative cooler 2 and the fan 4 can be disconnected by the second quick connector 37 and the third quick connector 39 in the shutdown state, and then the two hydraulic cylinders 43 are operated to extend the piston rods, driving the lifting plate 44 to move down until the casters 45 are placed on the ground and the mobile base 40 is suspended in the air. The entire electrostatic precipitator 3 can be controlled to move flexibly through the four casters 45, which is more conducive to quickly moving the problematic electrostatic precipitator 3 to the maintenance station for maintenance and other operations. At the same time, another intact electrostatic precipitator 3 can also be quickly moved into the system through the casters 45. Next, the piston rods of the two hydraulic cylinders 43 corresponding to the new electrostatic precipitator 3 are retracted to drive the corresponding lifting plate 44 to move upward until the mobile base 40 is placed on the ground and the casters 45 are suspended in the air, and the electrostatic precipitator 3 can be fixed. After that, the electrostatic precipitator 3 is connected to the evaporative cooler 2 and the fan 4 through the second quick connector 37 and the third quick connector 39 again, and it can continue to be used, making the entire system more convenient and practical.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A converter flue gas dry dust removal system, comprising a vaporization cooling flue, an evaporative cooler, an electrostatic precipitator, a fan and a venting chimney, wherein the air outlet of the vaporization cooling flue is connected to the air inlet of the evaporative cooler, the air outlet of the evaporative cooler is connected to the air inlet of the electrostatic precipitator, the air inlet of the electrostatic precipitator is connected to the air inlet of the fan, and the characteristics are as follows: The emission chimney includes a cylindrical section and a conical section fixedly mounted above the cylindrical section, a horizontal guide tube is provided on the outer side of the lower part of the cylindrical section, a first guide tube and a second guide tube are provided in the guide tube, one end of the first guide tube is coaxially fixed on the inner wall of the end of the guide tube away from the cylindrical section, and a gap is left between the other end and the inner wall of the end of the guide tube close to the cylindrical section, the end wall of the guide tube on the inner side of the fixed end of the first guide tube is detachably connected to the air outlet of the fan, the second guide tube is sleeved on the outer side of the first guide tube and one end of the second guide tube is coaxially fixed on the inner wall of the end of the guide tube close to the cylindrical section, and a gap is left between the other end and the inner wall of the end of the guide tube away from the cylindrical section, the end wall of the guide tube on the outer side of the fixed end of the second guide tube is connected to the side of the cylindrical section through a plurality of conveying pipes evenly spaced at circumferential intervals, and the first guide tube Two circular support mesh plates are provided in the flow tube, two annular support mesh plates are provided in the gap between the first guide tube and the second guide tube and in the gap between the second guide tube and the guide tube, the first activated carbon is filled between the circular support mesh plates and the annular support mesh plates, a shaft sleeve is coaxially fixedly mounted in the upper part of the cylindrical section, a rotating shaft is coaxially passed through and rotatably provided on the shaft sleeve, an impeller is coaxially fixedly connected to the bottom end of the rotating shaft, a plurality of groups of main mesh cylinders are distributed in upper and lower intervals on the upper part of the rotating shaft, each group of main mesh cylinders has a plurality of main mesh cylinders and are distributed in a circumferential interval, a plurality of sub-mesh cylinders are fixedly connected on the upper and lower sides of each main mesh cylinder, the main mesh cylinders and the sub-mesh cylinders are filled with the second activated carbon, the top of the cylindrical section is detachably connected to the bottom of the conical section, an igniter is provided in the conical section.

2. The converter flue gas dry dust removal system according to claim 1, characterized in that: The air outlet of the fan is connected with a first hose, and the first hose is connected with the end wall of the guide tube inside the fixed end of the first guide tube through a first quick connector.

3. The converter flue gas dry dust removal system according to claim 1, characterized in that: A lower flange is fixedly provided on the outer side of the top of the cylindrical section, and a mounting plate is fixedly provided on the left and right sides of the top of the lower flange along the front-to-back direction, and a plurality of first through holes evenly distributed in a rectangular array are opened on the mounting plate, and an upper flange is fixedly provided on the outer side of the bottom of the conical section, and mounting grooves are opened on the left and right sides of the bottom of the upper flange along the front-to-back direction, and a plurality of second through holes are opened on the groove wall on one side of the mounting groove away from the conical section, and a plurality of blind holes are opened on the groove wall on the other side, and electric push rods are horizontally fixedly provided on the left and right sides of the top of the upper flange, and the telescopic ends of the two electric push rods are arranged back to back and fixedly connected with a movable plate, and a plurality of fixing rods are fixedly provided on the side of the lower part of the movable plate close to the conical section, the lower flange is adapted to and abuts against the upper flange, and the mounting plate is adapted to and plugged into the mounting groove on the same side, the first through hole corresponds to the second through hole, the blind hole and the fixing rod on the same side, and the fixing rod passes through the corresponding first through hole and the second through hole and is plugged into the corresponding blind hole.

4. The converter flue gas dry dust removal system according to claim 1, characterized in that: A guide rail is fixedly arranged horizontally along the front-rear direction below the cylindrical section, a sliding base is slidably arranged on the guide rail, and the cylindrical section is fixedly arranged on the sliding base.

5. The converter flue gas dry dust removal system according to claim 1, characterized in that: The air outlet of the evaporative cooler is connected with a second hose, which is connected to the air inlet of the electrostatic precipitator through a second quick connector. The air inlet of the fan is connected with a third hose, which is connected to the air outlet of the electrostatic precipitator through a third quick connector.

6. The converter flue gas dry dust removal system according to claim 1, characterized in that: The electrostatic precipitator is fixedly mounted on a mobile base, and an inverted U-shaped support plate is fixedly arranged on the left and right sides of the top of the mobile base along the front-to-back direction, a through groove is opened on the inner side of the support plate corresponding to the mobile base, and a hydraulic cylinder is vertically fixedly arranged on the horizontal part of the support plate, the piston rod of the hydraulic cylinder is downwardly facing and fixedly connected to a lifting plate, the lifting plate can pass through the through groove and casters are arranged on the front and back sides of the bottom of the lifting plate.

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