CN116642198A - Ignition device for roasting furnace and method thereof - Google Patents
Ignition device for roasting furnace and method thereof Download PDFInfo
- Publication number
- CN116642198A CN116642198A CN202310767483.7A CN202310767483A CN116642198A CN 116642198 A CN116642198 A CN 116642198A CN 202310767483 A CN202310767483 A CN 202310767483A CN 116642198 A CN116642198 A CN 116642198A
- Authority
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- China
- Prior art keywords
- gas pipeline
- roasting furnace
- auxiliary
- ignition
- combustion box
- Prior art date
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- Pending
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000002485 combustion reaction Methods 0.000 claims abstract description 104
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 239000007789 gas Substances 0.000 claims description 113
- 239000002737 fuel gas Substances 0.000 claims description 22
- 238000012544 monitoring process Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 3
- 238000010304 firing Methods 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 11
- 229910052799 carbon Inorganic materials 0.000 description 11
- 239000011280 coal tar Substances 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000000567 combustion gas Substances 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23Q—IGNITION; EXTINGUISHING-DEVICES
- F23Q3/00—Igniters using electrically-produced sparks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23Q—IGNITION; EXTINGUISHING-DEVICES
- F23Q3/00—Igniters using electrically-produced sparks
- F23Q3/006—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23Q—IGNITION; EXTINGUISHING-DEVICES
- F23Q3/00—Igniters using electrically-produced sparks
- F23Q3/008—Structurally associated with fluid-fuel burners
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D99/00—Subject matter not provided for in other groups of this subclass
- F27D99/0001—Heating elements or systems
- F27D99/0033—Heating elements or systems using burners
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
The invention discloses an ignition device for a roasting furnace and a method thereof, wherein a first spark plug for a main gas pipeline is arranged in a wind shield, an auxiliary ignition mechanism is arranged on the main gas pipeline, the auxiliary ignition mechanism comprises a wind adjusting spiral cover, a combustion box, an auxiliary gas pipeline and a second spark plug, the combustion box is positioned on the outer wall of the roasting furnace and covers the outer end of the wind shield, the wind adjusting spiral cover is rotatably arranged at the outer end of the wind shield, the combustion end of the auxiliary gas pipeline and the ignition end of the second spark plug are both positioned in the combustion box, and the second spark plug is used for igniting the combustion end of the auxiliary gas pipeline; a plurality of corresponding through holes are arranged between the wind adjusting spiral cover and the wind shield. The ignition method for the roasting furnace is characterized in that the auxiliary ignition device is controlled to work with the original ignition device of the roasting furnace in a coordinated manner, the auxiliary ignition device is controlled to ignite the original ignition device under the condition that the original ignition device cannot successfully ignite, and the ignition process can be realized through the control of a small negative pressure difference, so that the ignition method is simple and safe.
Description
Technical Field
The invention relates to the technical field of roasting furnaces, in particular to an ignition device for a roasting furnace and a method thereof.
Background
The anode carbon block needs to be kneaded before forming, quenched and tempered asphalt needs to be added in the kneading process, and coal tar needs to be added in the quenching and tempering process. The anode carbon block is subjected to roasting operation, so that the usability of the anode carbon block is improved, for the anode carbon block roasting operation, the anode carbon block is required to be hoisted into a roasting furnace of the anode carbon block, and then a filler is added into the roasting furnace, so that the anode carbon block is subjected to roasting operation under the sealing of the filler.
Because the anode carbon block carries more asphalt, when the anode carbon block is subjected to roasting operation, the smoke generated in the roasting furnace also contains coal tar and other substances, the carbon roasting furnace is divided into a furnace bottom, a side wall, a flame path wall, a transverse wall, a furnace top and a flue according to the structure of the carbon roasting furnace, a flame nozzle of the general roasting furnace is positioned at the furnace top, the smoke containing coal tar can be gradually accumulated on the furnace top when rising, and then the flame nozzle is burnt to ignite electric spark, even the flame nozzle is blocked, so that the ignition is inconvenient, the successful ignition is realized only by repeated ignition, and after long-time production, the coal tar adhered to the flame nozzle is also required to be cleaned regularly, so that the normal use of the roasting furnace is ensured, and the use of the roasting furnace is extremely inconvenient.
Disclosure of Invention
The invention aims to provide an ignition device for a roasting furnace and a method thereof, which are used for solving the problems that a burner of the roasting furnace is inconvenient to ignite and needs to be cleaned regularly under the influence of smoke.
In order to solve the technical problems, the invention adopts the following technical scheme:
the ignition device for the roasting furnace comprises a main gas pipeline, wherein the combustion end of the main gas pipeline is positioned in a windshield in the roasting furnace, a first spark plug used for the combustion end of the main gas pipeline is arranged in the windshield, an auxiliary ignition mechanism is arranged on the main gas pipeline and comprises a wind adjusting spiral cover, a combustion box, an auxiliary gas pipeline and a second spark plug, the combustion box is positioned on the outer wall of the roasting furnace and covers the outer end of the windshield, the wind adjusting spiral cover is rotatably arranged on the outer end of the windshield, the auxiliary gas pipeline is hermetically arranged on the combustion box, the combustion end of the auxiliary gas pipeline is positioned in the combustion box, the second spark plug is positioned in the auxiliary gas pipeline, one end of the second spark plug extends out of the combustion end of the auxiliary gas pipeline, and the second spark plug is used for igniting the combustion end of the auxiliary gas pipeline; wherein,,
the air inlet end of the auxiliary fuel gas pipeline is provided with a three-way pipe, and the tail end of the second spark plug is provided with one end of the three-way pipe;
a plurality of corresponding through holes are arranged between the wind adjusting spiral cover and the wind shield.
The further technical scheme is as follows: and the air inlet end of the main gas pipeline is communicated with the variable gas pipe and the quantitative gas pipe.
The further technical scheme is as follows: the auxiliary gas pipeline, the variable gas supply pipe and the quantitative gas supply pipe are provided with flow control valves and manual valves.
The further technical scheme is as follows: an air supply pipe is arranged on an air inlet of the combustion box.
The further technical scheme is as follows: and pressure gauges are arranged on the roasting furnace and the combustion box.
The further technical scheme is as follows: the wind-adjusting spiral cover is provided with an extension rod, the extension rod is connected with a push rod in a sliding mode, and the push rod is installed in the combustion box in a sliding mode.
An ignition method for a roasting furnace comprises the ignition device, and the ignition method comprises the following steps:
s1, opening an air supply pipe and a through hole, discharging fuel gas from a main fuel gas pipeline, attempting ignition by a first spark plug, and closing the main fuel gas pipeline if multiple ignition is unsuccessful;
s2, providing fuel gas into the combustion box through the auxiliary fuel gas pipeline, providing certain air into the combustion box through the air supply pipe, and then igniting through the second spark plug;
s3, the ignition of the second spark plug is successful, the air supply quantity to the combustion box is gradually reduced, the air in the windshield and the roasting furnace flows to the combustion box, and the air pressure in the roasting furnace is lower than the air pressure of the combustion box;
s4, when the flame at the combustion end of the auxiliary gas pipeline is weakened, the gas quantity of the auxiliary gas pipeline and the air supply quantity of the combustion box are increased, and meanwhile, the gas of the main gas pipeline is discharged outwards, so that the gas pressure of the combustion box is ensured to be larger than the gas pressure in the roasting furnace;
s5, the combustion end of the main gas pipeline is ignited, so that the gas quantity of the auxiliary gas pipeline is reduced, and the air supply quantity of the combustion box is increased.
The further technical scheme is as follows: in the step S4, a hearth flame television monitoring system is used for identifying the flame intensity of the combustion end of the auxiliary gas pipeline.
Compared with the prior art, the invention has at least one of the following beneficial effects:
the ignition device is used for ignition and combustion through the mutual matching of an auxiliary ignition device and an original ignition device of a roasting furnace, the auxiliary ignition device is positioned outside the roasting furnace, prevents the flue gas of the roasting furnace from being burnt for an electronic spark, ensures that the ignition process is not influenced by substances such as coal tar and the like in the flue gas of the roasting furnace, and can simultaneously ignite the original ignition device of the roasting furnace which is influenced, thereby ensuring the stability and success rate of the ignition process of the roasting furnace.
The ignition method for the roasting furnace is characterized in that the auxiliary ignition device and the original ignition device of the roasting furnace are coordinated to control the operation, the auxiliary ignition device is intervened under the condition that the original ignition device cannot smoothly ignite, the negative pressure difference between the auxiliary ignition device and the original ignition device is controlled, external flames are ensured to enter the roasting furnace through the through holes, the original ignition device is ignited, and the ignition process can be realized through the control of small negative pressure difference, so that the method is simple and safe.
Drawings
Fig. 1 is a schematic view of an ignition device for a roasting furnace according to the present invention.
Fig. 2 is a schematic view of the configuration of the windshield of fig. 1 according to the present invention.
Fig. 3 is a schematic structural view of the wind-adjusting screw cap in fig. 1 according to the present invention.
Reference numerals: 1. a main gas pipeline; 2. a roasting furnace; 3. a windshield; 4. a first spark plug; 5. an auxiliary ignition mechanism; 6. regulating wind and screwing the cover; 7. a combustion box; 7. an auxiliary gas pipeline; 8. a second spark plug; 9. a second spark plug; 10. a through hole; 11. variable gas pipe; 12. quantitative gas pipe; 13. a flow control valve; 14. an air supply pipe; 15. a pressure gauge; 16. an extension rod; 17. a push rod; 18. a manual valve.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without collision.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, or are directions or positional relationships conventionally understood by those skilled in the art, are merely for convenience of describing the present invention and for simplifying the description, and are not to indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Embodiment one:
the embodiment is shown in fig. 1, 2 and 3, and the ignition device for the roasting furnace comprises a main gas pipeline 1, wherein the combustion end of the main gas pipeline 1 is positioned in a windshield 3 in a roasting furnace 2, a first spark plug 4 used for the combustion end of the main gas pipeline 1 is arranged in the windshield 3, an auxiliary ignition mechanism 5 is arranged on the main gas pipeline 1, the auxiliary ignition mechanism 5 comprises a wind adjusting spiral cover 6, a combustion box 7, an auxiliary gas pipeline 8 and a second spark plug 9, the combustion box 7 is positioned on the outer wall of the roasting furnace 2 and covers the outer end of the windshield 3, the wind adjusting spiral cover 6 is rotatably arranged on the outer end of the windshield 3, the auxiliary gas pipeline 8 is hermetically arranged on the combustion box 7, the combustion end of the auxiliary gas pipeline 8 is positioned in the combustion box 7, one end of the second spark plug 9 extends out of the combustion end of the auxiliary gas pipeline 8, and the second spark plug 9 is used for igniting the combustion end of the auxiliary gas pipeline 8; the air inlet end of the auxiliary fuel gas pipeline 8 is provided with a three-way pipe, and the tail end of the second spark plug 9 is provided with one end of the three-way pipe; a plurality of corresponding through holes 10 are arranged between the wind adjusting spiral cover 6 and the wind shield 3.
The working process of the invention is as follows: before ignition, the auxiliary ignition mechanism 5 does not ignite, the wind-regulating rotary cover 6 and the main gas pipeline 1 are opened, so that the wind shield 3 has enough air and fuel gas, then the first spark plug 4 is electrified to try to ignite, the ignition is unsuccessful after a plurality of times (can be set for reasonable times according to requirements) of attempts, the operation of the first spark plug 4 is stopped, the wind-regulating rotary cover 6 is rotated to reduce or close the through hole 10, the auxiliary gas pipeline 8 is opened, at least the pressure difference between the combustion box 7 and the roasting furnace 2 is close or consistent (preferably slightly exceeds the external air pressure), then the second spark plug 9 is electrified to try to ignite, after the air outlet of the auxiliary gas pipeline 8 is ignited, the air supply quantity and the fuel gas supply quantity of the combustion box 7 start to be reduced (the pressure of the combustion box 7 is gradually reduced), at the moment, the air and the fuel gas in the roasting furnace 2 are sucked into the combustion box 7 through negative pressure, the pressure difference between the combustion box 7 and the roasting furnace 2 is ensured to be close (slightly lower than the external air pressure), the air pressure difference between the combustion box 7 and the auxiliary gas 2 is mainly equal to or slightly exceeds the external air pressure when the air pressure of the first plug 4 is discharged into the combustion box 2 through the combustion box 8, the combustion box 2 is completely exceeds the air supply quantity of the combustion box 7 or the combustion gas supplied into the main gas pipeline 8 through the combustion box 2 through the combustion box 8, and the combustion box is completely exceeds the pressure of the combustion air supply quantity of the combustion box 2 through the combustion box 2, and the combustion gas is completely exceeds the combustion gas supply quantity of the combustion box 2 through the combustion gas after the combustion box is completely; or under the action of the negative pressure of the roasting furnace 2 (the pressure of the combustion box 7 is not required to exceed the external air pressure), the flame in the combustion box 7 can be sucked into the windshield 3 to ignite the main gas pipeline 1.
The ignition device is used for igniting and burning through the mutual matching of the auxiliary ignition device and the original ignition device of the roasting furnace, the auxiliary ignition device is positioned outside the roasting furnace, the electronic spark is prevented from being stuck by the flue gas of the roasting furnace, the ignition process is ensured not to be influenced by substances such as coal tar and the like in the flue gas of the roasting furnace, and meanwhile, the ignition can be carried out on the original ignition device of the roasting furnace which is influenced, so that the stability and success rate of the ignition process of the roasting furnace are ensured.
In addition, the second spark plug 9 is installed on the auxiliary gas pipeline 8 through a three-way pipe, firstly, in order to ensure the accuracy of ignition, and secondly, the second spark plug 9 is convenient to replace.
Preferably, the inlet end of the main gas conduit 1 communicates with a variable gas pipe 11 and a quantitative gas pipe 12.
The variable gas pipe 11 is used for controlling the gas quantity of the main gas pipeline 1 and adjusting the pressure or flame size in the roasting furnace 2;
the quantitative gas pipe 12 is used for stably providing gas quantity, so that the variable gas pipe 11 is closed when the roasting furnace is used for changing materials, and the quantitative gas pipe 12 is used for ensuring the small flame of the main gas pipeline 1 to burn.
Preferably, the secondary gas line 8, the variable gas supply pipe and the dosing gas supply pipe are each provided with a flow control valve 13 and a manual valve 18.
And the manual and automatic combination control ensures the safety.
Preferably, the air inlet of the combustion box 7 is provided with an air supply pipe 14.
Preferably, pressure gauges 15 are mounted on both the roasting furnace 2 and the combustion box 7.
For monitoring the pressure changes of the roasting furnace 2 and the combustion box 7.
Preferably, the wind-adjusting screw cap 6 is provided with an extension rod 16, the extension rod 16 is connected with a push rod 17 in a sliding manner, and the push rod 17 is installed in the combustion box 7 in a sliding manner.
When the push rod 17 is pressed down, the push rod 17 can rotate the wind-adjusting rotary cover 6 by pushing the extension rod 16, so as to control the opening, closing and size of the through hole 10.
An ignition method for a roasting furnace comprises an ignition device, wherein the ignition method comprises the following steps:
s1, opening an air supply pipe and a through hole, discharging fuel gas from a main fuel gas pipeline, attempting ignition by a first spark plug, and closing the main fuel gas pipeline if multiple ignition is unsuccessful;
s2, providing fuel gas into the combustion box through the auxiliary fuel gas pipeline, providing certain air into the combustion box through the air supply pipe, and then igniting through the second spark plug;
s3, the ignition of the second spark plug is successful, the air supply quantity to the combustion box is gradually reduced, the air in the windshield and the roasting furnace flows to the combustion box, and the air pressure in the roasting furnace is lower than the air pressure of the combustion box;
s4, when the flame at the combustion end of the auxiliary gas pipeline is weakened, the gas quantity of the auxiliary gas pipeline and the air supply quantity of the combustion box are increased, and meanwhile, the gas of the main gas pipeline is discharged outwards, so that the gas pressure of the combustion box is ensured to be larger than the gas pressure in the roasting furnace;
s5, the combustion end of the main gas pipeline is ignited, so that the gas quantity of the auxiliary gas pipeline is reduced, and the air supply quantity of the combustion box is increased.
On the basis of the ignition device, the method is used for controlling the coordination work of the auxiliary ignition mechanism 5 and the original ignition device of the roasting furnace under the control of the PLC, before ignition, the auxiliary ignition mechanism 5 does not participate in ignition, but the air supply pipe 14 and the air regulating spiral cover 6 of the auxiliary ignition mechanism need to be opened together with the main gas pipeline 1 to ensure that the windshield 3 has enough air and fuel gas, then the first spark plug 4 is electrified to try to ignite, reasonable ignition times can be set on the PLC according to requirements, and the ignition is not successfully performed after multiple attempts, so that the work of the first spark plug 4 is stopped; the secondary gas pipeline 8 is opened to at least ensure that the pressure difference between the combustion box 7 and the roasting furnace 2 is close to or consistent (preferably slightly exceeds the external air pressure), then the second spark plug 9 is electrified to try to fire, on the premise of eliminating part damage and device failure, the device can be successfully ignited without being influenced by roasting smoke, after the gas outlet of the secondary gas pipeline 8 is ignited, the air supply quantity and the gas supply quantity of the combustion box 7 are reduced (the pressure of the combustion box 7 is gradually reduced), at the moment, the secondary gas pipeline 8 is rotated to open the through hole 10, the air and the gas in the roasting furnace 2 (mainly in the windshield 3) are sucked into the combustion box 7 through the negative pressure, the pressure difference between the combustion box 7 and the roasting furnace 2 is ensured to be close (slightly lower than the external air pressure), mainly in order to discharge the good gas which is introduced into the roasting furnace 2 when the first spark plug 4 is ignited, and finally, the pressure of the combustion box 7 is even beyond the pressure of the main gas through the windshield 3 by increasing the gas supply quantity or the air supply quantity or the common supply quantity of the secondary gas pipeline 8, and the pressure of the secondary gas pipeline 8 is even the pressure of the secondary gas is generated, and the pressure of the secondary gas is even the pressure of the secondary gas 2 exceeds the air through the windshield 3, and the air is discharged into the air through the windshield 3; or under the action of the negative pressure of the roasting furnace 2 (the pressure of the combustion box 7 is not required to exceed the external air pressure), the flame in the combustion box 7 can be sucked into the windshield 3 to ignite the main gas pipeline 1.
According to the ignition method for the roasting furnace, the auxiliary ignition device and the original ignition device of the roasting furnace are coordinated to control the operation, under the condition that the original ignition device cannot smoothly ignite, the auxiliary ignition device is interposed, the negative pressure difference between the auxiliary ignition device and the original ignition device is controlled, external flames are ensured to enter the roasting furnace through the through holes, the original ignition device is ignited, and the ignition process can be realized through the control of small negative pressure difference, so that the ignition method is simple and safe.
Preferably, in S4, the flame intensity recognition of the combustion end of the secondary gas pipeline uses a hearth flame television monitoring system in the prior art. For ignition and combustion monitoring.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (8)
1. The utility model provides an ignition for roasting furnace, includes main gas pipeline (1), the burning end of main gas pipeline (1) is arranged in windshield (3) in roasting furnace (2), be provided with in windshield (3) and be used for first spark plug (4) of main gas pipeline (1) burning end, its characterized in that: the auxiliary ignition device is characterized in that an auxiliary ignition mechanism (5) is arranged on the main gas pipeline (1), the auxiliary ignition mechanism (5) comprises a wind-adjusting spiral cover (6), a combustion box (7), an auxiliary gas pipeline (8) and a second spark plug (9), the combustion box (7) is positioned on the outer wall of the roasting furnace (2) and covers the outer end of the wind shield (3), the wind-adjusting spiral cover (6) is rotatably arranged on the outer end of the wind shield (3), the auxiliary gas pipeline (8) is hermetically arranged on the combustion box (7), the combustion end of the auxiliary gas pipeline (8) is positioned in the combustion box (7), the second spark plug (9) is positioned in the auxiliary gas pipeline (8), one end of the second spark plug (9) extends out of the combustion end of the auxiliary gas pipeline (8), and the second spark plug (9) is used for igniting the combustion end of the auxiliary gas pipeline (8); wherein,,
the air inlet end of the auxiliary fuel gas pipeline (8) is provided with a three-way pipe, and the tail end of the second spark plug (9) is provided with one end of the three-way pipe;
a plurality of corresponding through holes (10) are arranged between the wind adjusting spiral cover (6) and the wind shield (3).
2. An ignition device for a roasting furnace according to claim 1, characterized in that: the air inlet end of the main gas pipeline (1) is communicated with a variable gas pipe (11) and a quantitative gas pipe (12).
3. An ignition device for a roasting furnace according to claim 2, characterized in that: the auxiliary gas pipeline (8), the variable gas supply pipe and the quantitative gas supply pipe are provided with a flow control valve (13) and a manual valve (18).
4. An ignition device for a roasting furnace according to claim 1, characterized in that: an air supply pipe (14) is arranged on an air inlet of the combustion box (7).
5. An ignition device for a roasting furnace according to claim 1, characterized in that: and pressure gauges (15) are arranged on the roasting furnace (2) and the combustion box (7).
6. An ignition device for a roasting furnace according to claim 1, characterized in that: the air adjusting spiral cover (6) is provided with an extension rod (16), the extension rod (16) is connected with a push rod (17) in a sliding mode, and the push rod (17) is installed in the combustion box (7) in a sliding mode.
7. An ignition method for a roasting furnace, characterized by comprising the ignition device according to any one of claims 1 to 6, the steps of the ignition method being as follows:
s1, opening an air supply pipe and a through hole, discharging fuel gas from a main fuel gas pipeline, attempting ignition by a first spark plug, and closing the main fuel gas pipeline if multiple ignition is unsuccessful;
s2, providing fuel gas into the combustion box through the auxiliary fuel gas pipeline, providing certain air into the combustion box through the air supply pipe, and then igniting through the second spark plug;
s3, the ignition of the second spark plug is successful, the air supply quantity to the combustion box is gradually reduced, the air in the windshield and the roasting furnace flows to the combustion box, and the air pressure in the roasting furnace is lower than the air pressure of the combustion box;
s4, when the flame at the combustion end of the auxiliary gas pipeline is weakened, the gas quantity of the auxiliary gas pipeline and the air supply quantity of the combustion box are increased, and meanwhile, the gas of the main gas pipeline is discharged outwards, so that the gas pressure of the combustion box is ensured to be larger than the gas pressure in the roasting furnace;
s5, the combustion end of the main gas pipeline is ignited, so that the gas quantity of the auxiliary gas pipeline is reduced, and the air supply quantity of the combustion box is increased.
8. The firing method for a roasting furnace according to claim 1, characterized in that: in the step S4, a hearth flame television monitoring system is used for identifying the flame intensity of the combustion end of the auxiliary gas pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310767483.7A CN116642198A (en) | 2023-06-27 | 2023-06-27 | Ignition device for roasting furnace and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310767483.7A CN116642198A (en) | 2023-06-27 | 2023-06-27 | Ignition device for roasting furnace and method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116642198A true CN116642198A (en) | 2023-08-25 |
Family
ID=87624863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310767483.7A Pending CN116642198A (en) | 2023-06-27 | 2023-06-27 | Ignition device for roasting furnace and method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116642198A (en) |
-
2023
- 2023-06-27 CN CN202310767483.7A patent/CN116642198A/en active Pending
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