CN115682026B - Pneumatic ignition structure suitable for blast furnace coal - Google Patents
Pneumatic ignition structure suitable for blast furnace coal Download PDFInfo
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- CN115682026B CN115682026B CN202211344579.4A CN202211344579A CN115682026B CN 115682026 B CN115682026 B CN 115682026B CN 202211344579 A CN202211344579 A CN 202211344579A CN 115682026 B CN115682026 B CN 115682026B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention provides a pneumatic ignition structure suitable for blast furnace coal, and relates to the technical field of ignition devices. This pneumatic ignition structure based on be applicable to blast furnace coal, which comprises a housin, the equal fixedly connected with pull rod in U-shaped briquetting roof front portion, the equal fixedly connected with spring of U-shaped briquetting is close to the equal fixedly connected with spring of one end roof front and back portion mutually, the equal through connection frid front and back portion of one end roof front and back portion is kept away from to the U-shaped briquetting mutually, the equal sliding connection of frid inner wall has U-shaped fixed plate, the equal butt of one end is kept away from mutually to the electrode is at the support interior top. The coil is used for supplying power to the electrode, the ignition burner is matched to burn coal gas, flame is secondarily burned through the inclined air pipe, so that the ignition success rate is improved, the damaged electrode is taken out by pulling the pull rod, the pull rod is loosened after the new electrode is replaced, the U-shaped fixing plate is pushed to the bracket by the spring, the electrode is propped against the coil, and the connection reliability is ensured while the replacement is convenient.
Description
Technical Field
The invention relates to the technical field of ignition devices, in particular to a pneumatic ignition structure suitable for blast furnace coal.
Background
The blast furnace is iron-making equipment, in modern society of the daily and lunar variation, the consumption of steel is very huge, and the use of the blast furnace for iron-making is economical, the yield is large and the efficiency is high, and the iron smelted by the blast furnace is very suitable for the current demands, so the iron which is the vast majority of the total yield of iron in the world is obtained by charging iron ore, coke, limestone and the like into the blast furnace, and the iron ore is reduced by utilizing oxidation-reduction reaction at high temperature, but blast furnace slag, blast furnace gas and other byproducts are also produced, and the blast furnace gas has certain toxicity, so the blast furnace gas needs to be burnt for preventing polluted air.
The blast furnace gas is diffused and combusted usually by adopting a combustion mode of converter gas with combustion, an exciter is required to be firstly ignited, then a converter gas ignition valve and a combustion-supporting valve are started, after the ignition is successful, a long-term open lamp valve is fully opened, energy waste can be caused by continuous combustion of the open lamp during non-diffusion, the concentration of the peripheral gas of a diffusing tower exceeds the standard due to unsuccessful ignition of the blast furnace gas, and a plasma igniter is adopted to ignite a cathode of the blast furnace gas, so that the cathode of the ignition is easy to be damaged.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a pneumatic ignition structure suitable for blast furnace coal, which solves the problems that energy is wasted when a pilot burner is in an on state for a long time, gas concentration exceeds standard when ignition is unsuccessful, and the electrode is inconvenient to replace after damage.
In order to achieve the above purpose, the invention is realized by the following technical scheme: the pneumatic ignition structure suitable for blast furnace coal comprises a shell, a fixed column is fixedly connected with the bottom wall of the shell, a second cover door is hinged to the middle part of the rear wall of the shell, a second fixing plate is fixedly connected to the lower part of the inner wall of the shell, a first fixing plate is fixedly connected to the upper part of the inner wall of the shell, a PLC host is fixedly connected to the front part of the inner wall of the shell, a power box is fixedly connected to the middle part of the inner wall of the shell, a coil is fixedly connected to the output end of the power box, one end of the coil, far away from the power box, penetrates through the second fixing plate, ignition boxes are fixedly connected to the two sides of the top end of the second fixing plate, one side of the bottom wall in the ignition box is fixedly connected with a bracket, one end of the coil, which penetrates through the second fixing plate, is fixedly connected to the inner top of the bracket, the lower part of the inner wall of the ignition box, which is close to one side, is fixedly connected with a sleeve, the sleeve is kept away from one end mutually and is internally and all slidingly connected with a slide bar, one end of the slide bar is kept away from one end mutually and is all fixedly connected with a U-shaped pressing block, the front part of the top wall of the U-shaped pressing block is all fixedly connected with a pull rod, the front part and the rear part of the top wall of the U-shaped pressing block, which is close to one end mutually, are all fixedly connected with springs, the front part and the rear part of the middle part of the top wall of the ignition box body, which are close to one end mutually, are all fixedly connected with the front part and the rear part of a connecting groove plate, the front end and the rear part of the connecting groove plate are all slidingly connected with the front wall and the rear wall of the ignition box body, the inner wall of the connecting groove plate is all slidingly connected with a U-shaped fixing plate, the middle part of the U-shaped fixing plate is all penetrated with an electrode, one end far away from one end mutually is all abutted to the top in a bracket, one end near to one end mutually is penetrated through the side wall of the ignition box body, the top wall of the ignition box body is all hinged with a cover door III, the middle lower part of the inner rear wall of the shell is fixedly connected with an ignition burner, and the ignition burner is made of conductor ceramics.
Preferably, the front and rear parts of the side wall of the ignition box body are fixedly connected with air outlets, the air outlets are connected with a third compression fan through an air supply pipe, and the top wall of the third compression fan is fixedly connected with the outer part of the bottom wall of the shell.
Preferably, the ignition box inner wall all is provided with the cooling water pipe, the inside outlet pipe and the wet return of all being provided with of cooling water pipe, the outlet pipe all communicates with the cooling pump, cooling pump diapire fixedly connected with water tank, water tank diapire fixedly connected with is at the casing inner bottom wall rear portion, water tank and wet return intercommunication.
Preferably, the first compression fan of casing antetheca middle part fixedly connected with, first compression fan communicates with the main air supply pipe, main air supply pipe lower part periphery is provided with solenoid valve two, the antetheca middle part in the casing of solenoid valve two antetheca fixedly connected with, main air supply pipe lower extreme and annular trachea intercommunication, annular trachea diapire fixedly connected with is outside two tops of fixed plate, a plurality of air supply branch pipes that annular trachea inner wall fixedly connected with evenly distributed, main air supply pipe upper portion runs through fixed plate one, main air supply pipe upper portion periphery is provided with solenoid valve one, first antetheca fixedly connected with of solenoid valve is on the antetheca upper portion in the casing, main air supply pipe top rear portion runs through the annular frame, annular frame diapire fixedly connected with is on a top of fixed plate, annular frame roof rotates and is connected with annular commentaries on classics pipe, annular commentaries on classics pipe and main air supply pipe intercommunication, annular commentaries on classics pipe inner wall fixedly connected with evenly distributed's a plurality of oblique tuber pipes, all with annular commentaries on classics pipe intercommunication, the equal fixedly connected with baffle in oblique tuber pipe one side inner wall, all fixedly connected with baffle, all sliding connection is kept away from annular commentaries on classics pipe one end at annular tuber pipe one end.
Preferably, the middle upper part of the front wall of the shell is fixedly connected with a second compression fan, an air supply opening of the second compression fan is communicated with a catalyst bin, the catalyst bin penetrates through the upper part of the front wall of the shell, potassium perchlorate powder is arranged in the catalyst bin, and the front wall of the catalyst bin is hinged with a first cover door.
Preferably, the front part of the two top ends of the fixing plate is fixedly connected with a temperature sensor, the top wall of the shell is fixedly connected with a through pipe, and the top wall of one side of the through pipe is fixedly connected with a flame detector.
Preferably, the fixed column lower part is provided with the spacing hole, upper portion sliding connection has the limiting plate in the fixed column is inside, the limiting plate is trapezoidal, equal sliding connection in limiting plate both sides upper portion has the extrusion piece, equal sliding connection in fixed column both sides upper portion is kept away from to the extrusion piece, equal sliding connection in limiting plate both sides lower part has the butt piece, equal sliding connection in fixed column both sides middle part is kept away from to the butt piece.
Preferably, the intelligent control system comprises an input module, a data processing module, a timing module and an output module, wherein the input module, the data processing module, the timing module and the output module are all realized based on a PLC host, the input module is communicated with the data processing module, the data processing module is mutually communicated with the timing module, and the data processing module is communicated with the output module, wherein:
the flame detector is used for observing whether the flame is in a normal state or not, transmitting signals to the input module through the data transmission serial port, and transmitting the signals to the data processing module through the data transmission serial port after receiving the signals;
the timing module is used for controlling the working time of the first electromagnetic valve and the working time of the second electromagnetic valve, the timing module can calculate the residual working time, and when the countdown is finished, the timing module transmits signals to the data processing module through the data transmission serial port;
the data processing module is used for converting and analyzing the signals, and after the input module and the timing module transmit the signals to the data processing module through the data transmission serial port, the data processing module judges the commands to be executed through analysis and sequentially sends out the commands;
the output module is used for connecting each external executive component, and the output module respectively transmits signals to the first compression fan, the second compression fan, the third compression fan, the cooling pump, the power supply box, the ignition burner, the first control electromagnetic valve and the second electromagnetic valve through external data transmission serial ports, and controls the first control electromagnetic valve and the second control electromagnetic valve to start and stop according to the working flow.
Working principle: when the device is used, the anode and the cathode of the power supply box are respectively connected with the electrodes through the coils, the plasma arc is compressed into a compressed arc through the strong magnetic field formed by the coils, the compressed air flow is provided by the compressed air blower for ensuring that the compressed arc forms a usable arc, so that the compressed air blower is controlled to be started through the output module, the timing module starts timing, the air flow is blown out from the air outlets on the two sides of the anode electrode through the air supply pipe, the output module controls the compressed air blower to be started, thereby high-pressure coal gas enters the annular air pipe through the lower end of the main air supply pipe, the blast furnace coal gas passes through a high-temperature area between the electrodes and the ignition burner through the air supply branch pipe, the volatile matters are quickly released by the coal powder particles, the coal powder particles are broken and quickly combusted, at the moment, the output module controls the cooling pump to enable the cooling water to flow into the ignition box, and the aim of reducing the internal temperature of the ignition box is achieved, the temperature sensor monitors the temperature in real time, transmits signals to the input module through the data transmission serial port, prevents the ignition device from being damaged due to overhigh temperature, controls the opening of the electromagnetic valve I through the output module after timing for a certain time, so that high-pressure gas enters the annular rotary tube from the main gas supply tube, the bottom wall of the annular rotary tube is connected with the annular frame through the T-shaped sliding block, when the high-pressure gas enters the annular rotary tube, the air flow acts on the surface of the baffle plate, thereby pushing the inclined air tube connected with the baffle plate to drive the annular rotary tube to rotate along the annular frame, meanwhile, the high-pressure gas passes along the two sides of the baffle plate, is blown out by the inclined air tube and contacts with flame to realize secondary combustion, the output module blows potassium perchlorate powder into the catalyst bin through the starting of the compression fan II, and can be decomposed into potassium chloride and oxygen to provide oxygen for combustion to support combustion when the melting point, the direct ignition of blast furnace gas and the cancellation of gas consumption of a medium converter with a pilot burner are realized, potential safety hazards caused by high concentration of peripheral gas of a diffusing tower due to the non-ignition diffusion of the blast furnace gas are avoided, when the timing module is finished, the electromagnetic valve II and the ignition device are closed, high-pressure gas is blown out only through the inclined air pipe, so that the ignition device is prevented from being damaged due to long-time high temperature, and the flame detector is matched for monitoring the flame combustion state, so that personnel poisoning or air pollution caused by the fact that the blast furnace gas is still scattered outwards in a large amount after accidental flameout is prevented.
The invention provides a pneumatic ignition structure suitable for blast furnace coal. The beneficial effects are as follows:
1. the invention respectively connects the anode and the cathode of the power supply box with the electrode through the coil, and makes the blast furnace gas enter a high temperature area between the electrode and the ignition burner along the main gas supply pipe, the annular gas pipe and the gas supply branch pipe through the first compression fan, and makes the pulverized coal particles quickly release volatile matters by utilizing the plasma arc generated between the electrodes to match with the ignition burner, so as to break the pulverized coal particles and quickly burn the pulverized coal particles, and makes the flame secondarily burnt through the annular rotary pipe, the inclined gas pipe and the second compression fan, thereby improving the ignition success rate, avoiding the potential safety hazard caused by high concentration of the gas around the diffusion tower due to the non-ignition diffusion of the blast furnace gas and canceling the gas consumption of the medium converter of the pilot burner.
2. According to the invention, the U-shaped pressing block is driven to move through the pull rod, when the U-shaped pressing block penetrates through the connecting groove plate to be separated from the connecting groove plate, the U-shaped fixing plate is convenient to take out, and then the damaged cathode electrode is driven to be taken out, when a new electrode slides to the bottom along the inner wall of the connecting groove plate, the pull rod is loosened, under the action of the spring, the top ends of the front part and the rear part of the U-shaped pressing block penetrate through the connecting groove plate and prop against the U-shaped fixing plate, so that the U-shaped fixing plate is prevented from moving along the connecting groove plate and pushing the connecting groove plate to move to the support, the electrode and the coil prop against, the connection reliability is ensured while the replacement is facilitated, and the ignition is prepared.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view in cross-section of the internal connection structure of the housing of the present invention;
FIG. 3 is a rear perspective cutaway schematic view of the internal connection structure of the housing of the present invention;
FIG. 4 is a side cross-sectional perspective view of the ring frame connection of the present invention;
FIG. 5 is a front cross-sectional perspective view of the diagonal duct connection structure of the present invention;
FIG. 6 is a schematic top perspective view in cross-section of the annular gas tube connection structure of the present invention;
FIG. 7 is a schematic side view in cross-section of a connecting channel plate connecting structure of the present invention;
FIG. 8 is a schematic perspective view showing a top view and a cross section of a connecting structure of a connecting trough plate according to the present invention
FIG. 9 is a front cross-sectional perspective view of the connecting channel plate connecting structure of the present invention;
FIG. 10 is a rear cross-sectional perspective view of the power box connection structure of the present invention;
FIG. 11 is a front cross-sectional perspective view of the internal connection structure of the fixing column of the present invention;
fig. 12 is a PLC host internal system of the present invention.
Wherein, 1, limiting holes; 2. fixing the column; 3. a housing; 4. a first compression fan; 5. a second compression fan; 6. a first cover door; 7. a flame detector; 8. a third compression fan; 9. an abutment block; 10. a PLC host; 11. a coil; 12. a temperature sensor; 13. igniting the box body; 14. oblique air pipe; 15. a first fixing plate; 16. a second fixing plate; 17. an air supply pipe; 18. a cooling pump; 19. a power supply box; 20. a water tank; 21. a catalyst bin; 22. a gas supply branch pipe; 23. an annular rotary pipe; 24. a water outlet pipe; 25. an annular air tube; 26. a second cover door; 27. an annular frame; 28. a main feeding pipe; 29. a baffle; 30. igniting a burner; 31. cover door III; 32. an air outlet; 33. a first electromagnetic valve; 34. a second electromagnetic valve; 35. a bracket; 36. connecting the groove plates; 37. a slide bar; 38. a sleeve; 39. a spring; 40. a water return pipe; 41. a cooling water pipe; 42. a U-shaped pressing block; 43. a U-shaped fixing plate; 44. a pull rod; 45. an electrode; 46. pushing the block; 47. a limiting plate; 48. a through pipe; 49. an input module; 50. a data processing module; 51. a timing module; 52. and an output module.
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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples:
as shown in fig. 1-12, the embodiment of the invention provides a pneumatic ignition structure suitable for blast furnace coal, which comprises a shell 3, the bottom wall of the shell 3 is fixedly connected with a fixed column 2, the middle part of the rear wall of the shell 3 is hinged with a door two 26, the lower part of the inner wall of the shell 3 is fixedly connected with a fixed plate two 16, the upper part of the inner wall of the shell 3 is fixedly connected with a fixed plate two 15, the front part of the bottom wall of the shell 3 is fixedly connected with a PLC host 10, the middle part of the inner wall of the shell 3 is fixedly connected with a power box 19, the output end of the power box 19 is fixedly connected with a coil 11, one end of the coil 11 far away from the power box 19 penetrates through the fixed plate two 16, both sides of the top end of the fixed plate two 16 are fixedly connected with an ignition box 13, one side of the inner bottom of the ignition box 13 is fixedly connected with a bracket 35, one end of the coil 11 penetrating through the fixed plate two 16 is arranged inside the ignition box 13 and is fixedly connected with the top of the bracket 35, the lower part of the inner wall of one side of the ignition box 13 is fixedly connected with a sleeve 38, the inner part of one end far away from the sleeve 38 is fixedly connected with a slide bar 37, one end far away from the slide bar 37 is fixedly connected with a U-shaped pressing block 42, the front part of the top wall of the U-shaped pressing block 42 is fixedly connected with a pull rod 44, the front and rear parts of the top wall of the U-shaped pressing block 42 near one end are fixedly connected with springs 39, one end near the springs 39 is fixedly connected with the front and rear parts of the middle part of one side of the ignition box 13, the front and rear parts of the top wall of the U-shaped pressing block 42 far away from one end penetrate through the front and rear parts of a connecting groove plate 36, the front and rear ends of the connecting groove plate 36 are fixedly connected with a U-shaped fixing plate 43, the middle part of the U-shaped fixing plate 43 penetrates through an electrode 45, one end far away from the electrode 45 is abutted against the inner top of a bracket 35, one end near the electrode 45 penetrates through the side wall of the ignition box 13, the top wall of the ignition box 13 is hinged with a cover door III 31, the middle lower part of the inner rear wall of the shell 3 is fixedly connected with an ignition burner 30, the ignition burner 30 is made of conductor ceramics, the purpose of fixing an ignition device is realized through a fixing column 2, the purposes of being convenient to fix and preventing falling are achieved, the elements in the device can be overhauled conveniently through the cover door II 26, the vulnerable elements are replaced timely, the normal use of the device is ensured, the anode and the cathode of the power box 19 are respectively connected with an electrode 45 through a coil 11, and then a strong magnetic field is formed through the coil 11 to compress a plasma arc into a compressed arc, however, the cathode is easy to be damaged in actual use, so that a pull rod 44 is pulled to drive a U-shaped pressing block 42 to move, the U-shaped pressing block 42 is limited through a sleeve 38 and a slide rod 37, the U-shaped pressing block 42 is prevented from falling when moving, and the U-shaped pressing block 42 penetrates a connecting groove plate 36 to be separated from the connecting groove plate 36, the U-shaped fixing plate 43 inside the connecting groove plate 36 can be taken out, the electrode 45 is fixed in the middle of the U-shaped fixing plate 43, so that the damaged cathode electrode can be driven to be taken out, in addition, the middle of the side, close to the ignition box 13, is provided with grooves, one end of the electrode 45 can extend out of the ignition box 13, when a new electrode slides to the bottom along the inner wall of the connecting groove plate 36, the pull rod 44 is loosened, the top ends of the front and rear parts of the U-shaped pressing block 42 penetrate through the connecting groove plate 36 and support the U-shaped fixing plate 43 under the action of the spring 39, the U-shaped fixing plate 43 is ensured not to displace along the connecting groove plate 36, the connecting groove plate 36 slides to the bracket 35 along the inner wall of the ignition box 13, the coil 11 is supported by the bracket 35, and then the electrode 45 is matched with the U-shaped fixing plate 43 to support the coil 11, so that the connection reliability is ensured while the replacement is facilitated, the ignition is ready, the inner structure of the fire-stopping box 13 can be directly contacted with high temperature through the cover door III 31, so that the fire-stopping box plays a role in protection to a certain extent, meanwhile, as the ignition burner 30 is made of conductive ceramics, the ion conductivity activation energy is low, and the outer electrons can overcome the attraction of atomic check to become free electrons capable of freely moving, so that the ignition burner 30 can be used for assisting in igniting blast furnace gas, and the ignition rate is guaranteed to be hundred percent.
The front and rear parts of the side wall of the one-side ignition box body 13 are fixedly connected with air outlets 32, the air outlets 32 are connected with a third compression fan 8 through an air supply pipe 17, the top wall of the third compression fan 8 is fixedly connected to the outside of the bottom wall of the shell 3, the purpose of providing compressed air is achieved through the third compression fan 8, then air flow is blown out from the air outlets 32 on the two sides of the anode electrode through the air supply pipe 17, and the compressed electric arc is blown out of the anode under the action of compressed air with a certain flow rate to form a usable electric arc, so that the reliability of ignition is ensured.
The inner wall of the ignition box 13 is provided with a cooling water pipe 41, the inside of the cooling water pipe 41 is provided with a water outlet pipe 24 and a water return pipe 40, the water outlet pipe 24 is communicated with the cooling pump 18, the bottom wall of the cooling pump 18 is fixedly connected with a water tank 20, the bottom wall of the water tank 20 is fixedly connected to the rear part of the inner bottom wall of the shell 3, the water tank 20 is communicated with the water return pipe 40, the purpose of storing water is achieved through the water tank 20, water is pumped away from the water tank 20 through the cooling pump 18, the water flows through the inside of the ignition box 13 along the water outlet pipe 24 and the water return pipe 40, and therefore heat inside the ignition box 13 is absorbed, the effects of reducing the internal temperature of the ignition box 13 and preventing the internal coil 11, the electrode 45 and the like of the ignition box 13 from being burnt are achieved.
The middle part of the front wall of the shell 3 is fixedly connected with a first compression fan 4, the first compression fan 4 is communicated with a main air supply pipe 28, the periphery of the lower part of the main air supply pipe 28 is provided with a second electromagnetic valve 34, the front wall of the second electromagnetic valve 34 is fixedly connected with the middle part of the front wall in the shell 3, the lower end of the main air supply pipe 28 is communicated with an annular air pipe 25, the bottom wall of the annular air pipe 25 is fixedly connected with the outer part of the top end of a second fixed plate 16, a plurality of air supply branch pipes 22 which are uniformly distributed are fixedly connected with the inner wall of the annular air pipe 25, the upper part of the main air supply pipe 28 penetrates through a first fixed plate 15, the periphery of the upper part of the main air supply pipe 28 is provided with a first electromagnetic valve 33, the front wall of the first electromagnetic valve 33 is fixedly connected with the upper part of the front wall in the shell 3, the rear part of the top end of the main air supply pipe 28 penetrates through an annular frame 27, the bottom wall of the annular frame 27 is fixedly connected with the top end of the first fixed plate 15, the top wall of the annular frame 27 is rotationally connected with an annular rotating pipe 23, the annular rotating pipe 23 is communicated with the main air supply pipe 28, the inner wall of the annular rotary pipe 23 is fixedly connected with a plurality of inclined air pipes 14 which are uniformly distributed, the inclined air pipes 14 are communicated with the annular rotary pipe 23, the inner bottom wall of one side of the inclined air pipes 14 is fixedly connected with a baffle 29, one end of the baffle 29 far away from the inclined air pipes 14 is connected with the inner wall of the annular rotary pipe 23 in a sliding way, blast furnace gas enters the annular air pipe 25 along the lower end of the main air supply pipe 28 through a first compression fan 4, and then the blast furnace gas passes through a high-temperature area between an electrode 45 and an ignition burner 30 through an air supply branch pipe 22, so that pulverized coal particles quickly release volatile matters to break and quickly burn the pulverized coal particles, at the moment, a first electromagnetic valve 33 is opened, the upper end of the main air supply pipe 28 is communicated with the annular rotary pipe 23, the bottom wall of the annular rotary pipe 23 is connected with an annular frame 27 through a T-shaped sliding block, and when the high-pressure gas enters the annular rotary pipe 23, airflow acts on the surface of the baffle 29, thereby promote the oblique tuber pipe 14 that is connected with baffle 29 and drive annular change pipe 23 and rotate along annular frame 27, high-pressure gas passes through and is blown out by oblique tuber pipe 14 along the both sides of baffle 29 simultaneously, thereby make high-pressure gas contact the flame of burning through the middle part breach of fixed plate one 15 and realize secondary combustion, and oblique tuber pipe 14 rotates the air feed under annular change pipe 23 effect and make the more stable of flame burning, realize the direct ignition of blast furnace gas and the gas consumption of long bright lamp medium converter has been cancelled, the potential safety hazard that the peripheral gas concentration height of diffusion tower caused by the non-ignition diffusion of blast furnace gas causes has been avoided, close solenoid valve two 34 after a certain time makes high-pressure gas blown out by oblique tuber pipe 14 alone, thereby prevent ignition device in high temperature for a long time and cause the damage.
The upper part fixedly connected with compression fan two 5 in the casing 3 front wall, compression fan two 5 supply-air outlet intercommunication has catalyst storehouse 21, catalyst storehouse 21 runs through casing 3 front wall upper portion, the inside potassium perchlorate powder that is provided with of catalyst storehouse 21, the front wall articulates there is lid one 6 of catalyst storehouse 21, realize the purpose of blowing into catalyst storehouse 21 with the air current through compression fan two 5, and then make the inside potassium perchlorate powder of catalyst storehouse 21 get into flame combustion zone through catalyst storehouse 21 surface hole, because potassium perchlorate can decompose into potassium chloride and oxygen when the fusing point, so can provide a large amount of oxygen auxiliary combustion as the combustion improver, and can supply potassium perchlorate powder to inside catalyst storehouse 21 through lid one 6, thereby improve the success rate of ignition.
The front part of the top end of the second fixing plate 16 is fixedly connected with a temperature sensor 12, the top wall of the shell 3 is fixedly connected with a through pipe 48, one side top wall of the through pipe 48 is fixedly connected with a flame detector 7, the temperature of an ignition area is monitored in real time through the temperature sensor 12, the ignition device is prevented from being damaged in high temperature for a long time, the flame combustion state is monitored by being matched with the flame detector 7, and the fact that the blast furnace gas is scattered outwards in a large amount after accidental flameout is prevented from causing personnel poisoning or air pollution is prevented.
The fixed column 2 lower part is provided with spacing hole 1, upper portion sliding connection has limiting plate 47 in the fixed column 2 inside, limiting plate 47 is trapezoidal, limiting plate 47 both sides upper portion all sliding connection has the push block 46, push block 46 keeps away from limiting plate 47 one end all sliding connection in fixed column 2 both sides upper portion, limiting plate 47 both sides lower part all sliding connection has butt piece 9, butt piece 9 is kept away from limiting plate 47 one end all sliding connection in fixed column 2 both sides middle part, push block 46 receives external pressure and inwards moves when fixed column 2 is pushed fixing device, thereby promote limiting plate 47 removal, thereby make push block 46 outwards remove because limiting plate 47 is trapezoidal so as to support each other with fixing device and realize fixed purpose, and cooperation limiting hole 1 can make things convenient for secondary fixed ignition such as dead lever, thereby improve ignition's stability, prevent the pine and take off.
Including input module 49, data processing module 50, timing module 51 and output module 52, input module 49, data processing module 50, timing module 51 and output module 52 all are realized based on PLC host 10, and input module 49 intercommunication has data processing module 50, and data processing module 50 and timing module 51 communicate each other, and data processing module 50 communicates there is output module 52, wherein:
the input module 49 is used for controlling the temperature sensor 12 and the flame detector 7, the temperature sensor 12 monitors the site temperature in real time, the flame detector 7 observes whether the flame is in a normal state or not, and transmits signals to the input module 49 through the data transmission serial port, and the input module 49 receives the signals and transmits the signals to the data processing module 50 through the data transmission serial port;
the timing module 51 is used for controlling the working time of the first electromagnetic valve 33 and the second electromagnetic valve 34, the timing module 51 can calculate the residual working time, and when the countdown is finished, the timing module 51 transmits signals to the data processing module 50 through the data transmission serial port;
the data processing module 50 is configured to perform conversion analysis on the signal, and after the input module 49 and the timing module 51 transmit the signal to the data processing module 50 through the data transmission serial port, the data processing module 50 determines a command to be executed through analysis and sequentially sends the command;
the output module 52 is used for connecting each external execution element, and the output module 52 respectively transmits signals to the first compression fan 4, the second compression fan 5, the third compression fan 8, the cooling pump 18, the power supply box 19, the ignition burner 30, the first control solenoid valve 33 and the second solenoid valve 34 through external data transmission serial ports, and controls the first control solenoid valve 33 and the second control solenoid valve 34 to start and stop according to the working flow.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a pneumatic ignition structure suitable for blast furnace coal, includes casing (3), its characterized in that: the utility model discloses a sliding rod type electric power device, including casing (3) diapire fixedly connected with fixed column (2), casing (3) back wall middle part articulates there is lid door two (26), casing (3) inner wall lower part fixedly connected with fixed plate two (16), casing (3) inner wall upper portion fixedly connected with fixed plate one (15), casing (3) inner bottom wall front portion fixedly connected with PLC host computer (10), casing (3) inner bottom wall middle part fixedly connected with power box (19), power box (19) output all fixedly connected with coil (11), coil (11) keep away from power box (19) one end and all run through fixed plate two (16), fixed plate two (16) top both sides all fixedly connected with ignition box (13), ignition box (13) inner bottom wall one side all fixedly connected with support (35), coil (11) run through fixed plate two (16) one end all set up inside ignition box (13) and fixedly connected with top in support (35), ignition box (13) are close to one side inner wall lower part fixedly connected with power box (19), sleeve (38) all are kept away from side wall lower part fixedly connected with coil (38), slide bar (37) all keep away from one end (37) and all form sliding rod (37) and are connected with slide bar (37), the utility model provides a ceramic burner, including U-shaped briquetting (42), electrode (45) are all run through in the middle part of one side inner wall portion around being close to one end roof mutually in U-shaped briquetting (42), spring (39) are close to one end all fixed connection around being close to one side inner wall portion of ignition box (13) mutually, U-shaped briquetting (42) keep away from one end roof front and back portion all to run through connect frid (36) front and back portion mutually, connect frid (36) front and back end all sliding connection in ignition box (13) front and back wall, connect frid (36) inner wall all sliding connection have U-shaped fixed plate (43), electrode (45) all run through in U-shaped fixed plate (43) middle part, electrode (45) keep away from one end all butt in support (35) mutually, electrode (45) all run through ignition box (13) and are close to one side lateral wall mutually, ignition box (13) roof all articulates there is lid three (31), lower part fixedly connected with ignition (30) in the back wall in casing (3), ignition burner (30) are ceramic burner.
2. A pneumatic ignition structure for blast furnace coal according to claim 1, wherein: one side ignition box (13) lateral wall front and back portion all fixedly connected with air outlet (32), air outlet (32) all are connected with compression fan III (8) through air supply tuber pipe (17), compression fan III (8) roof fixed connection is outside casing (3) diapire.
3. A pneumatic ignition structure for blast furnace coal according to claim 1, wherein: the ignition box (13) inner wall all is provided with cooling water pipe (41), cooling water pipe (41) are inside all to be provided with outlet pipe (24) and wet return (40), outlet pipe (24) all communicate with cooling pump (18), cooling pump (18) diapire fixedly connected with water tank (20), diapire fixedly connected with in casing (3) diapire rear portion, water tank (20) and wet return (40) intercommunication.
4. A pneumatic ignition structure for blast furnace coal according to claim 1, wherein: the utility model discloses a rotary air supply device, including casing (3) and annular air pipe (23), casing (3) front wall middle part fixedly connected with compression fan one (4), compression fan one (4) and main air supply pipe (28) intercommunication, main air supply pipe (28) lower part periphery is provided with solenoid valve two (34), solenoid valve two (34) front wall fixed connection is in casing (3) inner front wall middle part, main air supply pipe (28) lower extreme and annular air pipe (25) intercommunication, annular air pipe (25) diapire fixed connection is in fixed plate two (16) top outsides, annular air pipe (25) inner wall fixed connection has a plurality of air supply branch pipes (22) that all distribute, main air supply pipe (28) upper portion runs through fixed plate one (15), main air supply pipe (28) upper portion periphery is provided with solenoid valve one (33), solenoid valve one (33) front wall fixed connection is in casing (3) inner front wall upper portion, main air supply pipe (28) top rear portion runs through annular frame (27), annular frame (27) diapire fixed connection is in fixed plate one (15) top, annular frame (27) inner wall fixed connection is in fixed plate one (14) inner wall (23) and annular air supply pipe (23) are all connected with annular air pipe (14) in a slant, the inner bottom wall of one side of the inclined air pipe (14) is fixedly connected with a baffle plate (29), and one end, far away from the inclined air pipe (14), of the baffle plate (29) is slidably connected with the inner wall of the annular rotating pipe (23).
5. A pneumatic ignition structure for blast furnace coal according to claim 1, wherein: the novel potassium perchlorate powder collection device is characterized in that a second compression fan (5) is fixedly connected to the middle upper portion of the front wall of the shell (3), a second air supply opening of the second compression fan (5) is communicated with a catalyst bin (21), the catalyst bin (21) penetrates through the upper portion of the front wall of the shell (3), potassium perchlorate powder is arranged in the catalyst bin (21), and a first cover door (6) is hinged to the front wall of the catalyst bin (21).
6. A pneumatic ignition structure for blast furnace coal according to claim 1, wherein: the front part of the top end of the second fixing plate (16) is fixedly connected with a temperature sensor (12), the top wall of the shell (3) is fixedly connected with a through pipe (48), and the top wall of one side of the through pipe (48) is fixedly connected with a flame detector (7).
7. A pneumatic ignition structure for blast furnace coal according to claim 1, wherein: the utility model discloses a fixed column, including fixed column (2), fixed column (2) are provided with spacing hole (1) in the lower part, upper portion sliding connection has limiting plate (47) in the inside, limiting plate (47) are trapezoidal, equal sliding connection in limiting plate (47) both sides upper portion has a push block (46), equal sliding connection in fixed column (2) both sides upper portion is kept away from limiting plate (47) one end to push block (46), equal sliding connection in limiting plate (47) both sides lower part has butt piece (9), equal sliding connection in fixed column (2) both sides middle part is kept away from to butt piece (9).
8. A pneumatic ignition structure for blast furnace coal according to claim 1, wherein: including input module (49), data processing module (50), timing module (51) and output module (52), input module (49), data processing module (50), timing module (51) and output module (52) are all realized based on PLC host computer (10), input module (49) intercommunication has data processing module (50), data processing module (50) communicate each other with timing module (51), data processing module (50) intercommunication has output module (52), wherein:
the input module (49) is used for controlling the temperature sensor (12) and the flame detector (7), the temperature sensor (12) monitors the site temperature in real time, the flame detector (7) observes whether the flame is in a normal state or not, signals are transmitted to the input module (49) through the data transmission serial port, and the input module (49) receives the signals and then transmits the signals to the data processing module (50) through the data transmission serial port;
the timing module (51) is used for controlling the working time of the first electromagnetic valve (33) and the second electromagnetic valve (34), the timing module (51) can calculate the residual working time, and when the countdown is finished, the timing module (51) transmits signals to the data processing module (50) through the data transmission serial port;
the data processing module (50) is used for converting and analyzing the signals, and after the input module (49) and the timing module (51) transmit the signals to the data processing module (50) through a data transmission serial port, the data processing module (50) judges the commands to be executed through analysis and sequentially sends out the commands;
the output module (52) is used for connecting each external execution element, and the output module (52) respectively transmits signals to the first compression fan (4), the second compression fan (5), the third compression fan (8), the cooling pump (18), the power supply box (19), the ignition burner (30), the first control electromagnetic valve (33) and the second electromagnetic valve (34) through external data transmission serial ports, and controls the first control electromagnetic valve and the second control electromagnetic valve to start and stop according to a working flow.
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| CN202211344579.4A CN115682026B (en) | 2022-10-31 | 2022-10-31 | Pneumatic ignition structure suitable for blast furnace coal |
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| CN202211344579.4A CN115682026B (en) | 2022-10-31 | 2022-10-31 | Pneumatic ignition structure suitable for blast furnace coal |
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| CN115682026A (en) | 2023-02-03 |
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