CN117739700A - Iron alloy submerged arc furnace flue gas monitoring device and detection method - Google Patents
Iron alloy submerged arc furnace flue gas monitoring device and detection method Download PDFInfo
- Publication number
- CN117739700A CN117739700A CN202311773678.9A CN202311773678A CN117739700A CN 117739700 A CN117739700 A CN 117739700A CN 202311773678 A CN202311773678 A CN 202311773678A CN 117739700 A CN117739700 A CN 117739700A
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- flue gas
- cabinet body
- smoke
- monitor
- air
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 147
- 239000003546 flue gas Substances 0.000 title claims abstract description 147
- 238000012806 monitoring device Methods 0.000 title claims abstract description 44
- 229910000640 Fe alloy Inorganic materials 0.000 title claims abstract description 21
- 238000001514 detection method Methods 0.000 title abstract description 6
- 239000000428 dust Substances 0.000 claims abstract description 43
- 238000012544 monitoring process Methods 0.000 claims abstract description 18
- 239000000779 smoke Substances 0.000 claims description 116
- 230000001681 protective effect Effects 0.000 claims description 37
- 239000007789 gas Substances 0.000 claims description 30
- 238000001816 cooling Methods 0.000 claims description 29
- 239000000523 sample Substances 0.000 claims description 29
- 238000004140 cleaning Methods 0.000 claims description 26
- 229920000742 Cotton Polymers 0.000 claims description 22
- 238000004804 winding Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 10
- 229910001021 Ferroalloy Inorganic materials 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 9
- 239000002344 surface layer Substances 0.000 claims description 8
- 230000001360 synchronised effect Effects 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims 1
- 238000013461 design Methods 0.000 description 8
- 238000005096 rolling process Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 241000270295 Serpentes Species 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention belongs to the technical field of flue gas monitoring, in particular to a flue gas monitoring device and a detection method of an iron alloy submerged arc furnace, aiming at the problem that the existing direct collection of high-temperature flue gas is easy to damage a monitoring device, dust attached to the monitoring device not only affects the appearance of the monitoring device but also affects the service life of the monitoring device.
Description
Technical Field
The invention relates to the technical field of flue gas monitoring, in particular to a flue gas monitoring device and a flue gas monitoring method for a ferroalloy submerged arc furnace.
Background
The ferroalloy is mainly applied to steel refining, and is a product which is added into molten iron as deoxidizing agent, element additive and the like to enable the steel to have certain characteristics during steelmaking, and a smoke monitoring device is required to monitor processing during the exploitation and sintering of the ferroalloy ore.
In the prior art, the flue gas monitoring process of the submerged arc furnace still has some defects:
when the flue gas is monitored, the collecting probe of the flue gas monitoring device is required to collect the flue gas in the submerged arc furnace, but when the flue gas in the submerged arc furnace is discharged from a chimney, the temperature of the flue gas is very high, and when the collecting probe directly collects the flue gas, the high-temperature flue gas easily damages the collecting probe and the monitoring device;
the working environment of the smoke monitoring device is in a factory, the dust content in the air in the working environment is very high, the dust in the factory is attached to the surface layer of the smoke monitoring device for a long time, the attractiveness of the smoke monitoring device is affected, and the service life of the smoke monitoring device and the detection accuracy of the smoke monitoring device can be affected when the dust accumulation thickness is thicker.
Aiming at the problems, the invention provides a flue gas monitoring device and a flue gas monitoring method for an iron alloy submerged arc furnace.
Disclosure of Invention
The invention aims to solve the defects that in the prior art, high-temperature flue gas is easy to damage a monitoring device by directly collecting high-temperature flue gas, and dust attached to the monitoring device not only affects the appearance of the monitoring device but also affects the service life of the monitoring device.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides an iron alloy submerged arc furnace flue gas monitoring devices, includes the cabinet body, flue gas monitor and collection probe and flue gas monitor pass through the bolt fastening in the cabinet body, collection probe is located one side of flue gas monitor, and the one end of collection probe runs through the cabinet body, the both sides inner wall that the cabinet body kept away from each other is all fixed with the elasticity limiting plate through the bolt fastening, and is located the elasticity limiting plate of cabinet body both sides inner wall and be used for fixing the flue gas monitor, the cabinet is internal to be fixed with the swash plate through the bolt fastening, and the swash plate collides with the top of flue gas monitor, one side of the cabinet body is equipped with the opening;
the monitoring structure is arranged at one side of the cabinet body and is used for monitoring the smoke;
the protection structure is arranged in the cabinet body and used for protecting the smoke monitor and avoiding the smoke monitor from being attached with excessive dust;
the driving structure is arranged on one side of the cabinet body and is used for removing dust attached to one side of the smoke monitor while driving the protecting structure.
In one possible design, the monitoring structure comprises a cooling box welded on one side of the cabinet body, a spiral pipe is arranged in the cooling box, one end of the spiral pipe is fixedly provided with a smoke inlet pipe, one end of the smoke inlet pipe penetrates through one side inner wall of the cooling box fixedly, the other end of the spiral pipe is fixedly provided with a smoke outlet pipe, the top end of the smoke outlet pipe penetrates through the top inner wall of the cooling box fixedly, one side of the cabinet body is welded with a box body positioned above the cooling box, the top end of the smoke outlet pipe extends into the box body, and one end of the collecting probe extends into the box body; the flue gas in the submerged arc furnace is led into the spiral pipe by the smoke inlet pipe, cold water in the cooling box is subjected to heat exchange with high-temperature flue gas in the spiral pipe, so that the temperature of the flue gas is reduced, the damage to the collecting probe and the flue gas monitor caused by overhigh flue gas temperature is avoided, the cooled flue gas enters the box body through the smoke outlet pipe, and the collecting probe collects the cooled flue gas at the moment and monitors the flue gas through the flue gas monitor.
In one possible design, the protection structure comprises a transverse plate which is connected in a cabinet body in a sliding way, one side of the cabinet body is rotationally connected with a threaded rod through a fixed block, the outer wall thread of the threaded rod is sleeved with a nut block, one side of the nut block is welded with the transverse plate, and the outer wall of the threaded rod is fixed with a worm wheel; the threaded rod rotates to drive the diaphragm to move downwards, and the diaphragm pulls the protection canvas downwards, seals the opening of the cabinet body through the protection canvas, can avoid dust in the mill to attach in one side of flue gas monitor when the flue gas monitor is idle.
In one possible design, the protection structure further comprises two bases fixedly connected to the top of the cabinet body, the same rotating shaft is rotatably connected between the two bases, a winding roller is fixed on the outer wall of the rotating shaft, two torsion springs are sleeved on the outer wall of the rotating shaft, one ends of the two torsion springs, which are close to each other, are respectively fixedly connected with two sides of the winding roller, one ends of the two torsion springs, which are far away from each other, are respectively fixedly connected with one sides of the two bases, the outer wall of the winding roller is wound with protection canvas, and one side of the protection canvas extends into the cabinet body and is fixedly connected with the top of the transverse plate; the pulling and rolling of the protection canvas can be completed through the cooperation of the transverse plate and the torsion spring.
In one possible design, the driving structure comprises a filter box, a duplex member and an air pump which are fixed on one side of a cabinet body through bolts, the filter box, the duplex member and the air pump are all positioned above the cabinet body, a plurality of flue gas filter screens for filtering air are arranged in the filter box, a first connecting pipe communicated with the cabinet body is arranged on one side of the filter box, the other side of the filter box is communicated with an air inlet of the duplex member through the communicating pipe, an air outlet of the duplex member is communicated with the air inlet of the air pump through the communicating pipe, a second connecting pipe is sleeved at an air outlet of the air pump, a protective box is fixed on one side of the cabinet body through bolts, a pneumatic motor is fixed in the protective box through bolts, the top end of the second connecting pipe extends into the protective box and is communicated with the air inlet of the pneumatic motor, a worm is fixed on an output shaft of the pneumatic motor through a coupling, an air outlet pipe is sleeved at the air outlet of the pneumatic motor, a gas storage bin is arranged in the transverse plate, a plurality of air outlet inclined holes are formed in the bottom of the gas storage bin, and one end of the air outlet pipe is communicated with the bin; the air pump is with in the air injection pneumatic motor of external for drive pneumatic motor operation, pneumatic motor passes through the cooperation of worm and worm wheel can drive protective structure, is used for protecting the flue gas monitor, and pneumatic motor can also be with exhaust gas injection gas storage storehouse in, and then when diaphragm and protection canvas seal the cabinet body, can clear away the dust that one side of flue gas monitor is attached through exhaust inclined hole spun gas, guarantees the clean and the aesthetic property of flue gas monitor.
In one possible design, the top of the cooling box is provided with a three-way valve, one air outlet of the three-way valve is sleeved with a smoke exhaust pipe, the first connecting pipe is communicated with the other air outlet of the three-way valve, and electromagnetic valves are sleeved on the smoke exhaust pipe and the outer wall of the first connecting pipe; when the flue gas monitor monitors flue gas, the electromagnetic valve on the flue gas exhaust pipe is opened, the flue gas in the cooling box can be exhausted, and when the cabinet body needs to be closed and the flue gas monitor is protected and cleaned, the electromagnetic valve on the first connecting pipe is opened, the external gas can be injected into the pneumatic motor, and the pneumatic motor is used for driving the protection structure.
In one possible design, the top of the cabinet body is rotationally connected with a guide roller through a fixed block, the guide roller is used for guiding the protection canvas, two limit circular plates are fixedly sleeved on the outer wall of the guide roller, and the two limit circular plates are positioned on two sides of the protection canvas; when the guide roller guides the protection canvas, the protection canvas can be prevented from swinging left and right through the limiting circular plate.
In one possible design, a plurality of guide rollers are arranged on one side, far away from the opening, of the cabinet body, a plurality of sieve plates are arranged on one side, far away from the opening, of the cabinet body, a plurality of screws are arranged in the sieve plates, and the screws are used for fixing the sieve plates and the cabinet body; can make the internal and outer wall of cabinet carry out the circulation of air through the dust filter screen for dispel the heat to the flue gas monitor, and can avoid external snake worm mouse ant to destroy the dust filter screen and get into the cabinet internal through the sieve, cause the damage to the circuit of flue gas monitor.
In one possible design, two first base plates are fixed on the top of the cabinet body through bolts, a rotating shaft is rotationally connected between the two first base plates, a cleaning cotton cylinder is fixedly sleeved on the outer wall of the rotating shaft and positioned above the protection canvas and used for cleaning the protection canvas, a second base plate is fixed on the top of the cabinet body through bolts, two third synchronizing wheels are rotationally connected to one side of the second base plate, one end of the rotating shaft rotationally penetrates through one of the first base plates and is fixedly provided with the second synchronizing wheels, one end of the rotating shaft rotationally penetrates through one of the base plates and is fixedly provided with the first synchronizing wheels, and the first synchronizing wheels, the second synchronizing wheels and the two third synchronizing wheels are in transmission connection through a synchronizing belt; in the process of rolling the protective canvas through the cooperation of the diaphragm and the torsion spring, the rotating shaft is driven to rotate by the action of the first synchronizing wheel, the second synchronizing wheel, the third synchronizing wheel and the synchronous belt, and the cleaning cotton cylinder and the rolling roller rotate in opposite directions, so that dust attached to the surface layer of the protective canvas can be effectively removed by the cleaning cotton cylinder, and the overall cleanness and the aesthetic property of the cabinet are ensured.
In the application, a detection method of a flue gas monitoring device of an iron alloy submerged arc furnace comprises the following steps:
s1, when flue gas in the submerged arc furnace needs to be monitored, the flue gas in the submerged arc furnace is led into a spiral pipe through a smoke inlet pipe, cold water in a cooling box is subjected to heat exchange with high-temperature flue gas in the spiral pipe, so that the temperature of the flue gas is reduced, damage to a collecting probe and a flue gas monitor caused by overhigh temperature of the flue gas is avoided, the cooled flue gas enters the box body through a smoke outlet pipe, the collecting probe collects the cooled flue gas, the flue gas is monitored through the flue gas monitor, and the residual flue gas in the box body is discharged to the outside through a smoke outlet pipe, so that the flue gas is treated;
s2, after the smoke monitoring is finished, in order to prevent excessive dust from adhering to the smoke monitor, the electromagnetic valve on the smoke exhaust pipe is closed, the electromagnetic valve on the first connecting pipe is opened, the air pump is started, the air pump sucks external air through the smoke inlet pipe, the air enters the filter box through the first connecting pipe, the air is filtered through the smoke filter screen, the filtered air is discharged into the pneumatic motor through the duplex member, the air pump and the second connecting pipe, the pneumatic motor rotates under the action of the air, the pneumatic motor drives the threaded rod to rotate through the worm and the worm wheel, the threaded rod drives the transverse plate to move downwards, the protective canvas is pulled downwards by the transverse plate, the opening of the cabinet body is closed through the protective canvas, and dust in a factory is prevented from adhering to the smoke monitor;
s3, in addition, gas in the pneumatic motor is discharged into a gas storage bin through an air outlet pipe, and when the transverse plate moves downwards, the gas in the gas storage bin is obliquely sprayed to one side of the smoke monitor through an air outlet inclined hole, so that one side of the smoke monitor, which is in long-time contact with the outside, can be blown off, dust on one side of the smoke monitor is removed, and then dust attached to the smoke monitor can be removed after the smoke monitor is used each time, the smoke monitor can be stored, the smoke monitor is further protected, and the cleanness and the attractiveness of the smoke monitor are ensured;
s4, because the diaphragm is downwards pulled to seal the opening of the cabinet body, dust is easy to adhere to one surface of the protective canvas towards the outside, and then the rotating shaft drives the rotating shaft and the cleaning cotton cylinder to rotate through the action of the first synchronizing wheel, the second synchronizing wheel, the third synchronizing wheel and the synchronous belt in the process of winding the protective canvas by matching the diaphragm with the torsion spring, and the cleaning cotton cylinder is opposite to the rotating direction of the winding roller, so that dust attached to the surface layer of the protective canvas can be effectively removed by the cleaning cotton cylinder, and the overall cleanness and the aesthetic property of the cabinet body are ensured.
In the invention, the air outlet of the air pump is communicated with the air inlet of the pneumatic motor through a second connecting pipe, the output shaft of the pneumatic motor is fixedly provided with a worm meshed with a worm wheel, the air outlet of the pneumatic motor is sleeved with an air outlet pipe, and one end of the air outlet pipe is communicated with the air storage bin; the air pump injects outside air into the pneumatic motor for driving the pneumatic motor to operate, the pneumatic motor can drive the protection structure through the cooperation of the worm and the worm wheel for protecting the smoke monitor, and the pneumatic motor can also inject exhaust gas into the gas storage bin, so that when the cross plate and the protection canvas seal the cabinet body, dust attached to one side of the smoke monitor can be removed through the gas sprayed out of the exhaust inclined hole, and the cleanness and the attractiveness of the smoke monitor are ensured;
according to the invention, the cabinet body is connected with the transverse plate in a sliding manner, the outer wall of the rotating shaft is fixedly provided with the rolling roller, the outer wall of the rolling roller is wound with the protective canvas, and one side of the protective canvas extends into the cabinet body and is fixedly connected with the top of the transverse plate; the pulling and the rolling of the protection canvas can be completed through the cooperation of the transverse plate and the torsion spring, and when the transverse plate pulls the protection canvas downwards, the protection canvas sealing cabinet body can be used for protecting the smoke monitor, and when the transverse plate moves downwards, the transverse plate can also jet out gas to clean the smoke monitor, so that the cleanliness of the smoke monitor is ensured, and the smoke monitor can be protected;
in the invention, a spiral pipe is arranged in the cooling box, one end of the spiral pipe is fixedly provided with a smoke inlet pipe, the other end of the spiral pipe is fixedly provided with a smoke outlet pipe, one side of the cabinet body is welded with the box body, the top end of the smoke outlet pipe extends into the box body, and one end of the collecting probe extends into the box body; the smoke in the submerged arc furnace is guided into the spiral pipe by the smoke inlet pipe, and cold water in the cooling box exchanges heat with high-temperature smoke in the spiral pipe to reduce the temperature of the smoke and avoid damage to the collecting probe and the smoke monitor caused by overhigh smoke temperature;
according to the invention, a cleaning cotton cylinder for cleaning the protective canvas is fixedly sleeved on the outer wall of the rotating shaft, one side of the second substrate is rotatably connected with two third synchronizing wheels, one end of the rotating shaft is fixedly provided with a second synchronizing wheel, one end of the rotating shaft is fixedly provided with a first synchronizing wheel, and the first synchronizing wheel, the second synchronizing wheel and the two third synchronizing wheels are in transmission connection through a synchronous belt; in the process of rolling the protective canvas through the cooperation of the diaphragm and the torsion spring, the rotating shaft is driven to rotate by the action of the first synchronizing wheel, the second synchronizing wheel, the third synchronizing wheel and the synchronous belt, and the cleaning cotton cylinder and the rolling roller rotate in opposite directions, so that dust attached to the surface layer of the protective canvas can be effectively removed by the cleaning cotton cylinder, and the overall cleanness and the aesthetic property of the cabinet are ensured.
In the invention, the high-temperature flue gas is cooled before the flue gas monitor monitors the flue gas, so that the damage to the flue gas monitor and the collecting probe caused by the high-temperature flue gas is avoided, in addition, the air pump can drive the air motor, the air motor not only drives the transverse plate to descend to finish the protection of the flue gas monitor, but also can utilize the discharged gas to blow dust on the surface layer of the flue gas monitor, thereby ensuring the cleanness and the attractiveness of the flue gas monitor, and protecting the idle flue gas monitor.
Drawings
Fig. 1 is a schematic three-dimensional structure of a flue gas monitoring device for an iron alloy submerged arc furnace according to embodiment 1 of the present invention;
fig. 2 is a schematic diagram of a three-dimensional explosion structure of a flue gas monitoring device for an iron alloy submerged arc furnace according to embodiment 1 of the present invention;
fig. 3 is a schematic three-dimensional sectional structure of a cabinet of the flue gas monitoring device for the iron alloy submerged arc furnace provided in embodiment 1 of the present invention;
fig. 4 is a schematic three-dimensional sectional structure diagram of a box body and a cooling box of a flue gas monitoring device for an iron alloy submerged arc furnace according to embodiment 1 of the present invention;
fig. 5 is a schematic three-dimensional sectional structure of a filter box of a flue gas monitoring device for an iron alloy submerged arc furnace according to embodiment 1 of the present invention;
FIG. 6 is a schematic view of a three-dimensional explosion structure of a rotating shaft, torsion springs and cross plates of a flue gas monitoring device for an iron alloy submerged arc furnace according to embodiment 1 of the present invention;
FIG. 7 is a schematic view of a part of three-dimensional cross-sectional structure of a rotary shaft and a protective box of a flue gas monitoring device for an iron alloy submerged arc furnace according to embodiment 1 of the present invention;
fig. 8 is a schematic diagram of a three-dimensional explosion structure of a cabinet body, a dust filter screen and a screen plate of the flue gas monitoring device for the iron alloy submerged arc furnace provided in embodiment 1 of the present invention;
fig. 9 is a schematic diagram of a side view of a part of a cabinet of a flue gas monitoring device for a ferroalloy submerged arc furnace according to embodiment 2 of the present invention.
In the figure: 1. a cabinet body; 2. a smoke monitor; 3. a cooling box; 4. a spiral tube; 5. a smoke inlet pipe; 6. a smoke outlet pipe; 7. collecting a probe; 8. a case; 9. a three-way valve; 10. a smoke exhaust pipe; 11. a first connection pipe; 12. an electromagnetic valve; 13. a filter box; 14. a flue gas filter screen; 15. a duplex member; 16. an air pump; 17. a second connection pipe; 18. a pneumatic motor; 19. a worm; 20. a threaded rod; 21. a worm wheel; 22. a base; 23. a rotating shaft; 24. a winding roller; 25. a torsion spring; 26. a protective canvas; 27. a cross plate; 28. a nut block; 29. a gas storage bin; 30. an exhaust inclined hole; 31. an air outlet pipe; 32. an elastic limiting plate; 33. a sloping plate; 34. a dust filter screen; 35. a sieve plate; 36. a screw; 37. a guide roller; 38. a limit circular plate; 39. a protective box; 40. a first synchronizing wheel; 41. a first substrate; 42. a rotating shaft; 43. cleaning a cotton cylinder; 44. a second synchronizing wheel; 45. a second substrate; 46. a third synchronizing wheel; 47. a synchronous belt.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Example 1
Referring to fig. 1-8, a ferroalloy submerged arc furnace flue gas monitoring device is applied to the submerged arc furnace flue gas monitoring field, and comprises a cabinet body 1, a flue gas monitor 2 and a collecting probe 7, wherein the flue gas monitor 2 is fixed in the cabinet body 1 through bolts, the collecting probe 7 is positioned on one side of the flue gas monitor 2, one end of the collecting probe 7 penetrates through the cabinet body 1, elastic limiting plates 32 are fixed on inner walls of two sides of the cabinet body 1, which are far away from each other, through bolts, elastic limiting plates 32 positioned on inner walls of two sides of the cabinet body 1 are used for fixing the flue gas monitor 2, an inclined plate 33 is fixed in the cabinet body 1 through bolts, the inclined plate 33 is contacted with the top of the flue gas monitor 2, and an opening is formed in one side of the cabinet body 1.
Referring to fig. 8, a plurality of guide rollers 37 are provided on a side of the cabinet body 1 away from the opening, a plurality of screen plates 35 are provided on a side of the cabinet body 1 away from the opening, and a plurality of screws 36 are provided in the screen plates 35, the screws 36 being used for fixing the screen plates 35 with the cabinet body 1; can make cabinet body 1 inside and outer wall carry out the circulation of air through dust filter screen 34 for dispel the heat to flue gas monitor 2, and can avoid external snake worm mouse ant to destroy dust filter screen 34 and get into cabinet body 1 through sieve 35, cause the damage to the circuit of flue gas monitor 2.
Referring to fig. 2 and 4, the device further comprises a monitoring structure arranged at one side of the cabinet body 1, and is used for monitoring the flue gas; the monitoring structure comprises a cooling box 3 welded on one side of a cabinet body 1, a spiral pipe 4 is arranged in the cooling box 3, one end of the spiral pipe 4 is fixedly provided with a smoke inlet pipe 5, one end of the smoke inlet pipe 5 fixedly penetrates through one side inner wall of the cooling box 3, the other end of the spiral pipe 4 is fixedly provided with a smoke outlet pipe 6, the top end of the smoke outlet pipe 6 fixedly penetrates through the top inner wall of the cooling box 3, one side of the cabinet body 1 is welded with a box body 8 positioned above the cooling box 3, the top end of the smoke outlet pipe 6 extends into the box body 8, and one end of a collecting probe 7 extends into the box body 8; the flue gas in the submerged arc furnace is led into the spiral pipe 4 by the flue pipe 5, cold water in the cooling box 3 exchanges heat with high-temperature flue gas in the spiral pipe 4, so that the temperature of the flue gas is reduced, the damage to the collecting probe 7 and the flue gas monitor 2 caused by overhigh temperature of the flue gas is avoided, the cooled flue gas enters the box body 8 through the flue pipe 6, and the cooled flue gas is collected by the collecting probe 7 at the moment and is monitored by the flue gas monitor 2.
Referring to fig. 2, 3 and 7, the device further comprises a protection structure arranged in the cabinet body 1 and used for protecting the smoke monitor 2 and avoiding excessive dust adhering to the smoke monitor 2; the protection structure comprises a transverse plate 27 which is slidably connected in the cabinet body 1, one side of the cabinet body 1 is rotatably connected with a threaded rod 20 through a fixed block, a nut block 28 is sleeved on the outer wall of the threaded rod 20 in a threaded manner, one side of the nut block 28 is welded with the transverse plate 27, and a worm wheel 21 is fixed on the outer wall of the threaded rod 20; the threaded rod 20 rotates to drive the transverse plate 27 to move downwards, the transverse plate 27 pulls the protection canvas 26 downwards, the opening of the cabinet body 1 is closed through the protection canvas 26, and dust in a factory can be prevented from being attached to one side of the smoke monitor 2 when the smoke monitor 2 is idle.
Referring to fig. 2, 3, 6 and 7, the protection structure further comprises two bases 22 fixedly connected to the top of the cabinet body 1, the same rotating shaft 23 is rotatably connected between the two bases 22, a winding roller 24 is fixed on the outer wall of the rotating shaft 23, two torsion springs 25 are sleeved on the outer wall of the rotating shaft 23, one ends of the two torsion springs 25, which are close to each other, are respectively fixedly connected with two sides of the winding roller 24, one ends of the two torsion springs 25, which are far away from each other, are respectively fixedly connected with one sides of the two bases 22, which are close to each other, the outer wall of the winding roller 24 is wound with protection canvas 26, and one side of the protection canvas 26 extends into the cabinet body 1 and is fixedly connected with the top of the transverse plate 27; the pulling and winding of the protection canvas 26 can be completed by the cooperation of the cross plate 27 and the torsion spring 25.
Referring to fig. 6, the top of the cabinet body 1 is rotatably connected with a guide roller 37 through a fixed block, the guide roller 37 is used for guiding the protection canvas 26, two limit circular plates 38 are fixedly sleeved on the outer wall of the guide roller 37, and the two limit circular plates 38 are positioned on two sides of the protection canvas 26; when the guide roller 37 guides the protection canvas 26, the limit disk 38 can prevent the protection canvas 26 from swinging left and right.
Referring to fig. 2, 4, 5 and 7, the apparatus further comprises a driving structure provided at one side of the cabinet 1 for cleaning dust attached to one side of the smoke monitor 2 while driving the protection structure; the driving structure comprises a filter box 13, a duplex member 15 and an air pump 16 which are fixed on one side of the cabinet body 1 through bolts, the filter box 13, the duplex member 15 and the air pump 16 are all positioned above the cabinet body 8, a plurality of flue gas filter screens 14 for filtering air are arranged in the filter box 13, one side of the filter box 13 is provided with a first connecting pipe 11 communicated with the cabinet body 8, the other side of the filter box 13 is communicated with an air inlet of the duplex member 15 through the communicating pipe, an air outlet of the duplex member 15 is communicated with the air inlet of the air pump 16 through the communicating pipe, a second connecting pipe 17 is sleeved at the air outlet of the air pump 16, a protective box 39 is fixed on one side of the cabinet body 1 through bolts, a pneumatic motor 18 is fixed in the protective box 39 through bolts, the top end of the second connecting pipe 17 extends into the protective box 39 and is communicated with the air inlet of the pneumatic motor 18, a worm 19 is fixed on an output shaft of the pneumatic motor 18 through a coupling, the worm 19 is meshed with the worm 21, an air outlet 31 is sleeved in the cross plate 27, a plurality of air outlet pipes 29 are arranged at the bottom of the air storage 29, one ends of the air outlet pipes 30 are communicated with the air outlets 29; the air pump 16 injects external air into the air motor 18 for driving the operation of the air motor 18, the air motor 18 can drive the protection structure through the cooperation of the worm 19 and the worm wheel 21, and is used for protecting the smoke monitor 2, and the air motor 18 can also inject exhaust gas into the gas storage bin 29, and then when the cross plate 27 and the protection canvas 26 seal the cabinet body 1, the dust attached to one side of the smoke monitor 2 can be removed through the gas of the exhaust inclined hole 30, and the cleanness and the attractiveness of the smoke monitor 2 are ensured.
Referring to fig. 4, a three-way valve 9 is arranged at the top of the cooling box 3, a smoke exhaust pipe 10 is sleeved at one air outlet of the three-way valve 9, a first connecting pipe 11 is communicated with the other air outlet of the three-way valve 9, and electromagnetic valves 12 are sleeved at the outer walls of the smoke exhaust pipe 10 and the first connecting pipe 11; when the smoke monitor 2 monitors smoke, the electromagnetic valve 12 on the smoke exhaust pipe 10 is opened, the smoke in the cooling box 3 can be exhausted, and when the cabinet body 1 needs to be closed and the smoke monitor 2 is protected and cleaned, the electromagnetic valve 12 on the first connecting pipe 11 is opened, the external gas can be injected into the pneumatic motor 18, and the pneumatic motor 18 is used for driving a protection structure.
Example 2
Referring to fig. 9, the improvement is based on example 1: the top of the cabinet body 1 is fixedly provided with two first base plates 41 through bolts, a rotating shaft 42 is rotationally connected between the two first base plates 41, a cleaning cotton cylinder 43 is fixedly sleeved on the outer wall of the rotating shaft 42, the cleaning cotton cylinder 43 is positioned above the protection canvas 26 and cleans the protection canvas 26, the top of the cabinet body 1 is fixedly provided with a second base plate 45 through bolts, one side of the second base plate 45 is rotationally connected with two third synchronizing wheels 46, one end of the rotating shaft 42 rotationally penetrates one of the first base plates 41 and is fixedly provided with a second synchronizing wheel 44, one end of the rotating shaft 23 rotationally penetrates one of the bases 22 and is fixedly provided with a first synchronizing wheel 40, and the first synchronizing wheel 40, the second synchronizing wheel 44 and the two third synchronizing wheels 46 are in transmission connection through a synchronizing belt 47; in the process that the transverse plate 27 is matched with the torsion spring 25 to wind the protective canvas 26, the rotating shaft 23 drives the rotating shaft 42 and the cleaning cotton cylinder 43 to rotate through the actions of the first synchronizing wheel 40, the second synchronizing wheel 44, the third synchronizing wheel 46 and the synchronous belt 47, and the cleaning cotton cylinder 43 and the winding roller 24 rotate in opposite directions, so that the cleaning cotton cylinder 43 can effectively remove dust attached to the surface layer of the protective canvas 26, and the overall cleanness and the aesthetic property of the cabinet body 1 are guaranteed.
A detection method of an iron alloy submerged arc furnace flue gas monitoring device comprises the following steps:
s1, when flue gas in the submerged arc furnace needs to be monitored, the flue gas in the submerged arc furnace is led into the spiral pipe 4 through the smoke inlet pipe 5, cold water in the cooling box 3 exchanges heat with high-temperature flue gas in the spiral pipe 4 to reduce the temperature of the flue gas, damage to the collecting probe 7 and the flue gas monitor 2 caused by overhigh temperature of the flue gas is avoided, the cooled flue gas enters the box body 8 through the smoke outlet pipe 6, at the moment, the collecting probe 7 collects the cooled flue gas, the flue gas is monitored through the flue gas monitor 2, and residual flue gas in the box body 8 is discharged to the outside through the smoke exhaust pipe 10 to treat the flue gas;
s2, after the smoke monitoring is finished, in order to prevent excessive dust from adhering to the smoke monitor 2, the electromagnetic valve 12 on the smoke exhaust pipe 10 is closed, the electromagnetic valve 12 on the first connecting pipe 11 is opened, the air pump 16 is started, the air pump 16 sucks external air through the smoke inlet pipe 5, the air enters the filter box 13 through the first connecting pipe 11, the air is filtered through the smoke filter screen 14, the filtered air is discharged into the pneumatic motor 18 through the duplex member 15, the air pump 16 and the second connecting pipe 17, the pneumatic motor 18 rotates under the action of the air, the pneumatic motor 18 drives the threaded rod 20 to rotate through the worm 19 and the worm wheel 21, the threaded rod 20 drives the transverse plate 27 to move downwards, the transverse plate 27 pulls the protective canvas 26 downwards, the opening of the cabinet body 1 is closed through the protective canvas 26, and dust in a factory is prevented from adhering to the smoke monitor 2;
s3, in addition, gas in the pneumatic motor 18 is discharged into the gas storage bin 29 through the gas outlet pipe 31, when the transverse plate 27 moves downwards, the gas in the gas storage bin 29 is obliquely sprayed to one side of the smoke monitor 2 through the gas outlet inclined hole 30, so that one side of the smoke monitor 2, which is in contact with the outside for a long time, can be blown off, dust on one side of the smoke monitor 2 is removed, and then after the smoke monitor 2 is used, dust attached to the smoke monitor 2 can be removed, the smoke monitor 2 can be stored, the smoke monitor 2 is further protected, and the cleanness and the attractiveness of the smoke monitor 2 are ensured;
s4, the opening of the cabinet body 1 is closed by downwards pulling the protective canvas 26 through the transverse plate 27, dust is easy to adhere to one surface of the protective canvas 26 facing the outside, and then the rotating shaft 23 drives the rotating shaft 42 and the cleaning cotton cylinder 43 to rotate through the actions of the first synchronizing wheel 40, the second synchronizing wheel 44, the third synchronizing wheel 46 and the synchronizing belt 47 in the process of winding the protective canvas 26 by matching the transverse plate 27 with the torsion spring 25, and the cleaning cotton cylinder 43 and the winding roller 24 are opposite in rotation direction, so that the dust attached to the surface layer of the protective canvas 26 can be effectively removed through the cleaning cotton cylinder 43, and the overall cleanness and the aesthetic property of the cabinet body 1 are guaranteed.
However, as is well known to those skilled in the art, the operation principles and wiring methods of the smoke monitor 2, the air pump 16 and the solenoid valve 12 are well known, and all of them are conventional or common-knowledge, and will not be described in detail herein, and any choice can be made by those skilled in the art according to their needs or convenience.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (10)
1. The utility model provides an iron alloy submerged arc furnace flue gas monitoring devices, includes cabinet body (1), flue gas monitor (2) and collecting probe (7) and flue gas monitor (2) pass through the bolt fastening in cabinet body (1), collecting probe (7) are located one side of flue gas monitor (2), and the one end of collecting probe (7) runs through cabinet body (1), a serial communication port, the both sides inner wall that cabinet body (1) kept away from each other is all fixed with elastic limiting plate (32) through the bolt, and is located elastic limiting plate (32) of cabinet body (1) both sides inner wall and be used for fixing flue gas monitor (2), be fixed with swash plate (33) through the bolt fastening in cabinet body (1), and swash plate (33) touch with the top of flue gas monitor (2), one side of cabinet body (1) is equipped with the opening;
the monitoring structure is arranged at one side of the cabinet body (1) and is used for monitoring the smoke;
the protection structure is arranged in the cabinet body (1) and is used for protecting the smoke monitor (2) and avoiding the smoke monitor (2) from being attached with excessive dust;
the driving structure is arranged on one side of the cabinet body (1) and is used for cleaning dust attached to one side of the smoke monitor (2) while driving the protecting structure.
2. The flue gas monitoring device of the iron alloy submerged arc furnace according to claim 1, wherein the monitoring structure comprises a cooling box (3) welded on one side of a cabinet body (1), a spiral pipe (4) is arranged in the cooling box (3), one end of the spiral pipe (4) is fixedly provided with a flue gas inlet pipe (5), one end of the flue gas inlet pipe (5) is fixedly penetrated through one side inner wall of the cooling box (3), the other end of the spiral pipe (4) is fixedly provided with a flue gas outlet pipe (6), the top end of the flue gas outlet pipe (6) is fixedly penetrated through the top inner wall of the cooling box (3), one side of the cabinet body (1) is welded with a box body (8) positioned above the cooling box (3), the top end of the flue gas outlet pipe (6) is extended into the box body (8), and one end of the collecting probe (7) is extended into the box body (8).
3. The flue gas monitoring device for the ferroalloy submerged arc furnace according to claim 2, wherein the protection structure comprises a transverse plate (27) which is slidably connected in a cabinet body (1), one side of the cabinet body (1) is rotatably connected with a threaded rod (20) through a fixed block, a nut block (28) is sleeved on the outer wall thread of the threaded rod (20), one side of the nut block (28) is welded with the transverse plate (27), and a worm wheel (21) is fixed on the outer wall of the threaded rod (20).
4. The flue gas monitoring device for the iron alloy submerged arc furnace according to claim 3, wherein the protection structure further comprises two bases (22) fixedly connected to the top of the cabinet body (1), one rotating shaft (23) is connected between the two bases (22), a winding roller (24) is fixed on the outer wall of the rotating shaft (23), two torsion springs (25) are sleeved on the outer wall of the rotating shaft (23), one ends, close to each other, of the two torsion springs (25) are fixedly connected with two sides of the winding roller (24), one ends, far away from each other, of the two torsion springs (25) are fixedly connected with one sides, close to each other, of the two bases (22), the outer wall of the winding roller (24) is provided with a protection canvas (26), and one side of the protection canvas (26) extends into the cabinet body (1) and is fixedly connected with the top of a cross plate (27).
5. The flue gas monitoring device for the iron alloy submerged arc furnace according to claim 4, wherein the driving structure comprises a filter box (13), a duplex member (15) and an air pump (16) which are fixed on one side of a cabinet body (1) through bolts, the filter box (13), the duplex member (15) and the air pump (16) are all positioned above the cabinet body (8), a plurality of flue gas filter screens (14) for filtering air are arranged in the filter box (13), a first connecting pipe (11) which is communicated with the cabinet body (8) is arranged on one side of the filter box (13), the other side of the filter box (13) is communicated with an air inlet of the duplex member (15) through a communicating pipe, an air outlet of the duplex member (15) is communicated with an air inlet of the air pump (16) through a communicating pipe, a second connecting pipe (17) is sleeved at the air outlet of the air pump (16), one side of the cabinet body (1) is fixedly provided with a protective box (39) through bolts, a pneumatic motor (18) is fixedly arranged in the protective box (39) through bolts, the second connecting pipe (17) is extended to the air inlet (18) of the air motor (18) through the worm wheel (18), the second connecting pipe (17) is meshed with an air inlet (19) of the air pump (19) and is fixedly meshed with an output shaft (19), the air outlet of the air motor (18) is sleeved with an air outlet pipe (31), an air storage bin (29) is arranged in the transverse plate (27), a plurality of air exhaust inclined holes (30) are formed in the bottom of the air storage bin (29), and one end of the air outlet pipe (31) is communicated with the air storage bin (29).
6. The flue gas monitoring device for the iron alloy submerged arc furnace according to claim 5, wherein a three-way valve (9) is arranged at the top of the cooling box (3), a flue gas exhaust pipe (10) is sleeved at one air outlet of the three-way valve (9), the first connecting pipe (11) is communicated with the other air outlet of the three-way valve (9), and electromagnetic valves (12) are sleeved on the outer walls of the flue gas exhaust pipe (10) and the first connecting pipe (11).
7. The flue gas monitoring device for the ferroalloy submerged arc furnace according to claim 6, wherein the top of the cabinet body (1) is rotationally connected with a guide roller (37) through a fixed block, the guide roller (37) is used for guiding the protection canvas (26), two limiting circular plates (38) are fixedly sleeved on the outer wall of the guide roller (37), and the two limiting circular plates (38) are positioned on two sides of the protection canvas (26).
8. The flue gas monitoring device for the ferroalloy submerged arc furnace according to claim 7, wherein a plurality of guide rollers (37) are arranged on one side, far away from the opening, of the cabinet body (1), a plurality of screen plates (35) are arranged on one side, far away from the opening, of the cabinet body (1), a plurality of screws (36) are arranged in the screen plates (35), and the screws (36) are used for fixing the screen plates (35) with the cabinet body (1).
9. The flue gas monitoring device for the iron alloy submerged arc furnace according to claim 8, wherein two first base plates (41) are fixed at the top of the cabinet body (1) through bolts, two first base plates (41) are connected with a rotating shaft (42) in a rotating mode, a cleaning cotton cylinder (43) is fixedly sleeved on the outer wall of the rotating shaft (42), the cleaning cotton cylinder (43) is located above the protection canvas (26) and cleans the protection canvas (26), a second base plate (45) is fixed at the top of the cabinet body (1) through bolts, two third synchronizing wheels (46) are connected to one side of the second base plate (45) in a rotating mode, one end of the rotating shaft (42) penetrates through one of the first base plates (41) in a rotating mode and is fixed with a second synchronizing wheel (44), one end of the rotating shaft (23) penetrates through one of the bases (22) in a rotating mode and is fixed with the first synchronizing wheel (40), and the first synchronizing wheel (40), the second synchronizing wheel (44) and the two third synchronizing wheels (46) are connected through a synchronous belt (47).
10. The method for detecting the flue gas monitoring device of the ferroalloy submerged arc furnace according to claim 9, comprising the following steps:
s1, when flue gas in the submerged arc furnace needs to be monitored, the flue gas in the submerged arc furnace is led into a spiral pipe (4) through a smoke inlet pipe (5), cold water in a cooling box (3) is subjected to heat exchange with high-temperature flue gas in the spiral pipe (4) to reduce the temperature of the flue gas, damage to a collecting probe (7) and a flue gas monitor (2) caused by overhigh temperature of the flue gas is avoided, the cooled flue gas enters a box body (8) through a smoke outlet pipe (6), at the moment, the collecting probe (7) collects the cooled flue gas, the flue gas is monitored through the flue gas monitor (2), and residual flue gas in the box body (8) is discharged to the outside through a smoke exhaust pipe (10) to treat the flue gas;
s2, after smoke monitoring is finished, in order to prevent excessive dust from adhering to the smoke monitor (2), an electromagnetic valve (12) on the smoke exhaust pipe (10) is closed, an electromagnetic valve (12) on the first connecting pipe (11) is opened, an air pump (16) is started, the air pump (16) sucks outside air through the smoke inlet pipe (5), the air enters the filter box (13) through the first connecting pipe (11), the air is filtered through the smoke filter screen (14), the filtered air is discharged into the pneumatic motor (18) through the duplex piece (15), the air pump (16) and the second connecting pipe (17), the pneumatic motor (18) rotates under the action of the air, the pneumatic motor (18) drives a threaded rod (20) to rotate through a worm (19) and a worm wheel (21), the threaded rod (20) drives a cross plate (27) to move downwards, the cross plate (27) pulls the protective canvas (26) downwards, and the opening of the cabinet body (1) is closed through the protective canvas (26), so that dust in a factory is prevented from adhering to the smoke monitor (2);
s3, in addition, gas in the pneumatic motor (18) is discharged into a gas storage bin (29) through an air outlet pipe (31), when the transverse plate (27) moves downwards, the gas in the gas storage bin (29) is obliquely sprayed to one side of the smoke monitor (2) through an air outlet inclined hole (30), so that the smoke monitor (2) can be blown on one side of the smoke monitor (2) contacting the outside for a long time, dust on one side of the smoke monitor (2) is removed, and then dust attached to the smoke monitor (2) can be removed after the smoke monitor (2) is used each time, the smoke monitor (2) can be stored, and the smoke monitor (2) is further protected, so that the cleanness and the attractiveness of the smoke monitor (2) are ensured;
s4, because the diaphragm (27) is downwards pulled to seal the opening of the cabinet body (1), dust is easy to adhere to one surface of the protective canvas (26) towards the outside, and then the rotating shaft (23) drives the rotating shaft (42) and the cleaning cotton cylinder (43) to rotate through the action of the first synchronizing wheel (40), the second synchronizing wheel (44), the third synchronizing wheel (46) and the synchronous belt (47) in the process of winding the protective canvas (26) by matching the diaphragm (27) with the torsion spring (25), and the cleaning cotton cylinder (43) is opposite to the rotating direction of the winding roller (24), so that dust attached to the surface layer of the protective canvas (26) can be effectively removed, and the overall cleanness and the aesthetic property of the cabinet body (1) are ensured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311773678.9A CN117739700A (en) | 2023-12-22 | 2023-12-22 | Iron alloy submerged arc furnace flue gas monitoring device and detection method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311773678.9A CN117739700A (en) | 2023-12-22 | 2023-12-22 | Iron alloy submerged arc furnace flue gas monitoring device and detection method |
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| CN117739700A true CN117739700A (en) | 2024-03-22 |
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| JP2000346327A (en) * | 1999-06-09 | 2000-12-15 | Nkk Corp | Two flow type refuse incinerator and operating method thereof |
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| CN216484864U (en) * | 2021-10-28 | 2022-05-10 | 上海智昂环保科技有限公司 | Flue gas analyzer with high detection precision |
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| JP2000346327A (en) * | 1999-06-09 | 2000-12-15 | Nkk Corp | Two flow type refuse incinerator and operating method thereof |
| CN210604563U (en) * | 2019-08-23 | 2020-05-22 | 山东宏峰环保科技有限公司 | Desulfurization and denitrification flue gas detection device |
| CN212586323U (en) * | 2020-03-16 | 2021-02-23 | 东营鸿林环保科技有限公司 | Continuous monitoring device for flue gas |
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