CN114136095A - Microwave ignition device of sintering machine - Google Patents
Microwave ignition device of sintering machine Download PDFInfo
- Publication number
- CN114136095A CN114136095A CN202111413226.0A CN202111413226A CN114136095A CN 114136095 A CN114136095 A CN 114136095A CN 202111413226 A CN202111413226 A CN 202111413226A CN 114136095 A CN114136095 A CN 114136095A
- Authority
- CN
- China
- Prior art keywords
- microwave
- sintering
- inner conductor
- ignition device
- ignition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005245 sintering Methods 0.000 title claims abstract description 107
- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 239000004020 conductor Substances 0.000 claims description 107
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 11
- 239000004449 solid propellant Substances 0.000 claims description 10
- 239000003721 gunpowder Substances 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 238000009768 microwave sintering Methods 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 33
- 238000000034 method Methods 0.000 description 12
- 238000010438 heat treatment Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000005684 electric field Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000003034 coal gas Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B21/00—Open or uncovered sintering apparatus; Other heat-treatment apparatus of like construction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23Q—IGNITION; EXTINGUISHING-DEVICES
- F23Q7/00—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2003/00—Type of treatment of the charge
- F27M2003/04—Sintering
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to a microwave ignition device of a sintering machine, belonging to the technical field of sintering equipment. The sintering machine microwave ignition device comprises a sintering trolley and a microwave ignition system, wherein the microwave ignition system comprises a microwave source, a sintering cover and an air guide port, and the microwave source comprises a magnetron driving power supply, a magnetron, a microwave input port, a circulator, a transmission waveguide and a microwave resonant cavity. Compared with the traditional ignition mode, the microwave ignition device of the sintering machine improves the heat utilization rate, thereby reducing the total energy consumption. Compared with the traditional ignition mode, the microwave ignition device for the sintering machine is not provided with equipment such as a traditional ignition burner, so that the problem that the traditional ignition mode is overhauled and consumes a large amount of manpower and material resources is solved, and the microwave ignition device is convenient to maintain.
Description
Technical Field
The invention relates to a microwave ignition device of a sintering machine, belonging to the technical field of sintering equipment.
Background
The sintering production equipment of the sintering machine mainly comprises a device system consisting of a plurality of working procedure devices. After the financial crisis, the steel industry faces huge challenges, the steel industry integrally slips down, the situation is not good, and the like, however, the integral energy conservation and emission reduction and consumption reduction of the sintering machine become important directions for improving the steel industry. Sintering is an important production process of steel smelting, and the strand sintering machine is widely applied at home and abroad, but the development direction of the strand sintering machine also presents several trends in order to pursue greater economic benefit and environmental benefit. The automation degree of the sintering machine is continuously improved, and the controllability of the sintering machine equipment is higher and higher; the area of the sintering machine is gradually increased, and the model of the sintering machine is also developed to be large; the consumption of raw materials by the sintering machine is gradually reduced, and the burden on the environment due to the emission of the sintering machine is also gradually reduced.
The ignition procedure is a key link of the sintering process, the traditional ignition procedure is mainly realized by coal gas, and the ignition is realized by generating enough heat through combustion of coke oven gas or blast furnace gas and the like. However, there are many researches on the ignition process, such as oxygen-enriched ignition, new burners or combustion supporting by hot air, and the like, and these measures for the ignition process do play a certain role in saving energy consumption, but basically do not change the coal gas combustion process, which can generate a large amount of energy loss, and secondly generate a large amount of waste to pollute the environment. The ignition process of the sintering machine is ensured to normally operate, energy consumption is reduced, pollution is reduced, and the aim of sintering ignition is fulfilled by adopting new energy for ignition from the ignition essence.
Disclosure of Invention
Aiming at the problems and the defects in the prior art, the invention provides a microwave ignition device for a sintering machine. The microwave ignition device for the sintering machine can reduce the problem that a large amount of energy is lost in the ignition process. The invention is realized by the following technical scheme.
A microwave ignition device of a sintering machine comprises a sintering trolley 1 and a microwave ignition system 2, wherein the microwave ignition system 2 comprises a microwave source 3, a sintering cover 4 and an air guide port 5, the microwave source 3 comprises a magnetron driving power supply 301, a magnetron 302, a microwave input port 303, a circulator 304, a transmission waveguide 305 and a microwave resonant cavity 306, the top of the sintering trolley 1 is provided with the sintering cover 4 for covering the sintering trolley 1, the sintering cover 4 is uniformly provided with a plurality of microwave sources 3 and air guide ports 5 which are distributed in a staggered manner with the microwave sources 3 along the running direction of the sintering trolley 1, the microwave resonant cavity 306 of the microwave sources 3 is internally provided with two pairs of inner conductors which are conical bosses, one pair of inner conductors are an inner conductor I6 and an inner conductor II 7 with the same taper, the other pair of inner conductors are an inner conductor III 8 and an inner conductor IV 9 with the same taper smaller than the inner conductor I6, the tops of the bosses of the first inner conductor 6 and the second inner conductor 7, the third inner conductor 8 and the fourth inner conductor 9 are opposite to each other and form a microwave channel, and the first inner conductor 6 and the second inner conductor 7 are positioned at the front ends of the third inner conductor 8 and the fourth inner conductor 9 in the microwave transmission direction.
A magnetron driving power supply 301 for adjusting the frequency and the power of a magnetron 302 is arranged on the magnetron 302 in the microwave source 3, and microwaves on the magnetron 302 are led into the sintering cover 4 through a microwave input port 303, a circulator 304, a transmission waveguide 305 and a microwave resonant cavity 306 in sequence.
The number of the microwave sources 3 is 1-70, and the magnetron driving power supply 301 on each microwave source 3 can be independently turned on and off.
The number of the air guide ports 5 is 1-70, and the cross section of each air guide port 5 is circular.
The gas guide port 5 is introduced with an auxiliary gas flow containing 12-40% of oxygen volume.
Grooves are formed in the surfaces of the third inner conductor 8 and the fourth inner conductor 9, and gunpowder is placed in the grooves.
And an iron-containing mixture mixed with solid fuel is placed in the sintering trolley 1, wherein the solid fuel accounts for 2.1-4.0% of the total amount of the iron-containing mixture.
The operating principle of the microwave ignition device of the sintering machine is as follows:
the microwave power unit (magnetron driving power supply 301, magnetron 302) generates microwave pulses with specific frequency and specific power, the magnetron 302 is used for converting the direct current energy obtained in the direct current electric field to microwave energy to the maximum extent, then the microwave energy is output to the circulator 304 through the microwave input port 303, the incident microwave generated by the magnetron 302 and the reflected microwave reflected by the system are separated, finally the microwave energy is transmitted to the microwave resonant cavity 306 through the transmission waveguide 305, the microwave energy enters the microwave resonant cavity 306, resonance occurs in the microwave resonant cavity 306, a strong electric field is generated at the tail ends of the second pair of inner conductors (inner conductor three 8 and inner conductor four 9) inside the microwave resonant cavity 306, wherein the field strength at the tail end of the cone boss small round table can be changed by adjusting the injection power, the strong electric field breaks through gunpowder placed at the tail ends of the cone boss small round table, plasma is generated, and the gunpowder is ignited, then, under the interaction of microwave and plasma, the rapid and complete combustion of gunpowder is realized, so that the temperature of the solid carbonaceous fuel of the iron-containing mixture reaches the ignition point temperature, and the combustion is carried out, thereby achieving the purpose of sintering and ignition.
The ignition temperature of the sintering trolley 1 of the microwave ignition device of the sintering machine is 850-910 ℃, and the ignition time is 100-115 seconds.
The sintering index of the microwave ignition device of the sintering machine is as follows: the vertical sintering speed of the mixture is 20-24 mm/min, and the yield is 66-75%.
The invention has the beneficial effects that:
1. compared with the traditional ignition mode, the microwave ignition device of the sintering machine improves the heat utilization rate, thereby reducing the total energy consumption.
2. Compared with the traditional ignition mode, the microwave ignition device for the sintering machine is not provided with equipment such as a traditional ignition burner, so that the problem that the traditional ignition mode is overhauled and consumes a large amount of manpower and material resources is solved, and the microwave ignition device is convenient to maintain.
3. The microwave ignition device of the sintering machine avoids harmful gas generated by burning fuel in the traditional ignition mode, so that the emission of the harmful gas in the sintering process is obviously reduced.
4. The microwave ignition device of the sintering machine realizes the ignition of gunpowder under lower microwave power, and has simple structure, safety and reliability.
Drawings
FIG. 1 is a schematic structural diagram of a microwave ignition device of a sintering machine according to the present invention in a front view;
FIG. 2 is a schematic diagram of the microwave source structure of the microwave ignition device of the sintering machine;
FIG. 3 is a schematic diagram of the internal structure of the microwave resonant cavity of the microwave ignition device of the sintering machine of the present invention;
FIG. 4 is a schematic view A of the microwave source and gas guide port distribution of the present invention;
FIG. 5 is a schematic view B of the microwave source and gas guide port distribution of the present invention;
fig. 6 is a schematic diagram C of the microwave source and gas guide port distribution of the present invention.
In the figure: 1-sintering trolley, 2-microwave ignition system, 3-microwave source, 301-magnetron driving power supply, 302-magnetron, 303-microwave input port, 304-circulator, 305-transmission waveguide, 306-microwave resonant cavity, 4-sintering cover, 5-gas guide port, 6-first inner conductor, 7-second inner conductor, 8-third inner conductor and 9-fourth inner conductor.
Detailed Description
The invention is further described with reference to the following drawings and detailed description.
Example 1
As shown in fig. 1 to 3, the microwave ignition device for the sintering machine comprises a sintering trolley 1 and a microwave ignition system 2, wherein the microwave ignition system 2 comprises a microwave source 3, a sintering cover 4 and a gas guide port 5, the microwave source 3 comprises a magnetron driving power supply 301, a magnetron 302, a microwave input port 303, a circulator 304, a transmission waveguide 305 and a microwave resonant cavity 306, the sintering cover 4 covering the sintering trolley 1 is arranged at the top of the sintering trolley 1, a plurality of microwave sources 3 regularly arranged and gas guide ports 5 distributed in a staggered manner with the microwave sources 3 are uniformly arranged on the body of the sintering cover 4 along the running direction of the sintering trolley 1, two pairs of inner conductors are arranged inside the microwave resonant cavity 306 of the microwave sources 3, the two pairs of inner conductors are conical bosses, one pair of inner conductors has the same conicity and is an inner conductor one 6 and an inner conductor two conductors 7 (the radius of the bottom surface is 30mm, the radius of the top surface is 2mm, and the height is 19.59 mm), the other pair of inner conductors has the same conicity and is a conductor three conductor 8 and a same inner conductor four conductor 9 (the bottom surface is a half of the bottom surface and is a half The diameter is 7mm, the radius of the top surface is 2mm, and the height is 22.09 mm), the first inner conductor 6 and the second inner conductor 7, and the third inner conductor 8 and the fourth inner conductor 9 are opposite to each other at the tops of the bosses and form a microwave channel, and the first inner conductor 6 and the second inner conductor 7 are positioned at the front ends of the third inner conductor 8 and the fourth inner conductor 9 in the microwave transmission direction.
The magnetron 302 of the microwave source 3 is provided with a magnetron driving power supply 301 for adjusting the frequency and power of the magnetron 302, and the microwave on the magnetron 302 is guided into the sintering cover 4 through a microwave input port 303, a circulator 304, a transmission waveguide 305 and a microwave resonant cavity 306 in sequence.
The number of the microwave sources 3 is 12, and the magnetron driving power supply 301 on each microwave source 3 can be independently turned on and off; the number of the air guide ports 5 is 12, and the cross section of each air guide port 5 is circular; the gas inlet 5 is fed with an auxiliary gas stream containing 12% by volume of oxygen. As shown in fig. 4, the first row at the top of the sintering hood 4 is provided with two microwave sources 3, the middle of the two microwave sources 3 is provided with a gas guide port 5, the second row is provided with one microwave source 3, the upper part and the lower part of the microwave source 3 are respectively provided with a gas guide port 5, the third row is arranged the same as the first row, the fourth row is arranged the same as the second row, and so on.
Wherein, the surfaces of the third inner conductor 8 and the fourth inner conductor 9 are both provided with grooves, and gunpowder is placed in the grooves.
And an iron-containing mixture mixed with solid fuel is placed in the sintering trolley 1, wherein the solid fuel accounts for 2.1 percent of the total amount of the iron-containing mixture.
This sintering machine microwave ignition compares with traditional ignition mode, and heating efficiency is high, and heat exchange efficiency reaches more than 91%, but the required energy consumption of ignition only 40% of traditional ignition mode, and ignition delay time shortens greatly, has good ignition performance, has reduced harmful gas's emission, and it is with high costs to have solved traditional ignition in-process igniter, overhauls difficult scheduling problem, and every microwave heating device independent control also provides a lot of facilities for staff's operation simultaneously.
Example 2
As shown in fig. 1 to 3, the microwave ignition device for the sintering machine comprises a sintering trolley 1 and a microwave ignition system 2, wherein the microwave ignition system 2 comprises a microwave source 3, a sintering cover 4 and a gas guide port 5, the microwave source 3 comprises a magnetron driving power supply 301, a magnetron 302, a microwave input port 303, a circulator 304, a transmission waveguide 305 and a microwave resonant cavity 306, the sintering cover 4 covering the sintering trolley 1 is arranged at the top of the sintering trolley 1, a plurality of microwave sources 3 regularly arranged and gas guide ports 5 distributed in a staggered manner with the microwave sources 3 are uniformly arranged on the body of the sintering cover 4 along the running direction of the sintering trolley 1, two pairs of inner conductors are arranged inside the microwave resonant cavity 306 of the microwave sources 3, the two pairs of inner conductors are conical bosses, one pair of inner conductors has the same conicity and is an inner conductor one 6 and an inner conductor two conductors 7 (the radius of the bottom surface is 30mm, the radius of the top surface is 2mm, and the height is 19.59 mm), the other pair of inner conductors has the same conicity and is a conductor three conductor 8 and a same inner conductor four conductor 9 (the bottom surface is a half of the bottom surface and is a half The diameter is 7mm, the radius of the top surface is 2mm, and the height is 22.09 mm), the first inner conductor 6 and the second inner conductor 7, and the third inner conductor 8 and the fourth inner conductor 9 are opposite to each other at the tops of the bosses and form a microwave channel, and the first inner conductor 6 and the second inner conductor 7 are positioned at the front ends of the third inner conductor 8 and the fourth inner conductor 9 in the microwave transmission direction.
The magnetron 302 of the microwave source 3 is provided with a magnetron driving power supply 301 for adjusting the frequency and power of the magnetron 302, and the microwave on the magnetron 302 is guided into the sintering cover 4 through a microwave input port 303, a circulator 304, a transmission waveguide 305 and a microwave resonant cavity 306 in sequence.
24 microwave sources 3 are provided, and the magnetron driving power supply 301 on each microwave source 3 can be independently turned on and off; the number of the air guide ports 5 is 36, and the cross section of each air guide port 5 is circular; the gas inlet 5 is fed with an auxiliary gas stream containing 40% by volume of oxygen. As shown in fig. 5, the first row on the top of the sintering hood 4 is provided with two microwave sources 3, a gas guide port 5 is respectively arranged between the two microwave sources 3, the first row is provided with three gas guide ports 5, the second row is provided with only three gas guide ports 5, the third row is arranged the same as the first row, the fourth row is arranged the same as the second row, and so on.
Wherein, the surfaces of the third inner conductor 8 and the fourth inner conductor 9 are both provided with grooves, and gunpowder is placed in the grooves.
And an iron-containing mixture mixed with solid fuel is placed in the sintering trolley 1, wherein the solid fuel accounts for 4.0% of the total amount of the iron-containing mixture.
This sintering machine microwave ignition compares with traditional ignition mode, and heating efficiency is high, and heat exchange efficiency reaches more than 91%, but the required energy consumption of ignition only 35% of traditional ignition mode, ignition delay time shortens greatly, has good ignition performance, has reduced harmful gas's emission, and it is with high costs to have solved traditional ignition in-process igniter, overhauls difficult scheduling problem, and every microwave heating device independent control also provides a lot of facilities for staff's operation simultaneously.
Example 3
As shown in fig. 1 to 3, the microwave ignition device for the sintering machine comprises a sintering trolley 1 and a microwave ignition system 2, wherein the microwave ignition system 2 comprises a microwave source 3, a sintering cover 4 and a gas guide port 5, the microwave source 3 comprises a magnetron driving power supply 301, a magnetron 302, a microwave input port 303, a circulator 304, a transmission waveguide 305 and a microwave resonant cavity 306, the sintering cover 4 covering the sintering trolley 1 is arranged at the top of the sintering trolley 1, a plurality of microwave sources 3 regularly arranged and gas guide ports 5 distributed in a staggered manner with the microwave sources 3 are uniformly arranged on the body of the sintering cover 4 along the running direction of the sintering trolley 1, two pairs of inner conductors are arranged inside the microwave resonant cavity 306 of the microwave sources 3, the two pairs of inner conductors are conical bosses, one pair of inner conductors has the same conicity and is an inner conductor one 6 and an inner conductor two conductors 7 (the radius of the bottom surface is 30mm, the radius of the top surface is 2mm, and the height is 19.59 mm), the other pair of inner conductors has the same conicity and is a conductor three conductor 8 and a same inner conductor four conductor 9 (the bottom surface is a half of the bottom surface and is a half The diameter is 7mm, the radius of the top surface is 2mm, and the height is 22.09 mm), the first inner conductor 6 and the second inner conductor 7, and the third inner conductor 8 and the fourth inner conductor 9 are opposite to each other at the tops of the bosses and form a microwave channel, and the first inner conductor 6 and the second inner conductor 7 are positioned at the front ends of the third inner conductor 8 and the fourth inner conductor 9 in the microwave transmission direction.
The magnetron 302 of the microwave source 3 is provided with a magnetron driving power supply 301 for adjusting the frequency and power of the magnetron 302, and the microwave on the magnetron 302 is guided into the sintering cover 4 through a microwave input port 303, a circulator 304, a transmission waveguide 305 and a microwave resonant cavity 306 in sequence.
The number of the microwave sources 3 is 15, and the magnetron driving power supply 301 on each microwave source 3 can be independently turned on and off; 40 air guide ports 5 are formed, and the cross sections of the air guide ports 5 are circular; the gas inlet 5 is fed with an auxiliary gas stream containing 25% by volume of oxygen. As shown in fig. 6, the first row at the top of the sintering hood 4 is provided with one microwave source 3, the upper and lower parts of the microwave source 3 are respectively provided with one gas guide port 5, the first row is provided with two microwave sources 3, the middle parts of the two microwave sources 3 are provided with two gas guide ports 5, the third row is provided with only three gas guide ports 5, the fourth row is arranged the same as the second row, the fifth row is arranged the same as the first row, the sixth row is arranged the same as the first row, and so on.
Wherein, the surfaces of the third inner conductor 8 and the fourth inner conductor 9 are both provided with grooves, and gunpowder is placed in the grooves.
And an iron-containing mixture mixed with solid fuel is placed in the sintering trolley 1, wherein the solid fuel accounts for 3% of the total amount of the iron-containing mixture.
This sintering machine microwave ignition compares with traditional ignition mode, and heating efficiency is high, and heat exchange efficiency reaches more than 91%, but the required energy consumption of ignition only 30% of traditional ignition mode, ignition delay time shortens greatly, has good ignition performance, has reduced harmful gas's emission, and it is with high costs to have solved traditional ignition in-process igniter, overhauls difficult scheduling problem, and every microwave heating device independent control also provides a lot of facilities for staff's operation simultaneously.
While the present invention has been described in detail with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, and various changes can be made without departing from the spirit and scope of the present invention.
Claims (7)
1. A microwave ignition device of a sintering machine is characterized in that: the microwave sintering device comprises a sintering trolley (1) and a microwave ignition system (2), wherein the microwave ignition system (2) comprises a microwave source (3), a sintering cover (4) and an air guide port (5), the microwave source (3) comprises a magnetron driving power supply (301), a magnetron (302), a microwave input port (303), a circulator (304), a transmission waveguide (305) and a microwave resonant cavity (306), the sintering cover (4) for covering the sintering trolley (1) is arranged at the top of the sintering trolley (1), a plurality of microwave sources (3) and air guide ports (5) distributed in a staggered manner with the microwave source (3) are uniformly arranged on the body of the sintering cover (4) along the running direction of the sintering trolley (1), two pairs of inner conductors are arranged inside the microwave resonant cavity (306) of the microwave source (3), the two pairs of inner conductors are conical bosses, one pair of inner conductors is a first inner conductor (6) and a second inner conductor (7) with the same taper, the other pair of inner conductors are an inner conductor three (8) and an inner conductor four (9) which have the same taper degree as the inner conductor one (6), the tops of the bosses of the inner conductor one (6), the inner conductor two (7), the conductor three (8) and the inner conductor four (9) are opposite to each other and form a microwave channel, and the inner conductor one (6) and the inner conductor two (7) are positioned at the front ends of the inner conductor three (8) and the inner conductor four (9) in the microwave transmission direction.
2. The microwave ignition device for sintering machine according to claim 1, characterized in that: a magnetron driving power supply (301) for adjusting the frequency and the power of a magnetron (302) is arranged on the magnetron (302) in the microwave source (3), and microwaves on the magnetron (302) are led into the sintering cover (4) through a microwave input port (303), a circulator (304), a transmission waveguide (305) and a microwave resonant cavity (306) in sequence.
3. The microwave ignition device for sintering machine according to claim 2, characterized in that: the number of the microwave sources (3) is 1-70, and a magnetron driving power supply (301) on each microwave source (3) can be independently turned on and off.
4. The microwave ignition device for sintering machine according to claim 1, characterized in that: the number of the air guide ports (5) is 1-70, and the cross section of each air guide port (5) is circular.
5. The microwave ignition device for sintering machine according to claim 4, characterized in that: and auxiliary airflow with the oxygen volume of 12-40% is introduced into the air guide port (5).
6. The microwave ignition device for sintering machine according to claim 1, characterized in that: grooves are formed in the surfaces of the third inner conductor (8) and the fourth inner conductor (9), and gunpowder is placed in the grooves.
7. The microwave ignition device for sintering machine according to claim 1, characterized in that: and an iron-containing mixture mixed with solid fuel is placed in the sintering trolley (1), wherein the solid fuel accounts for 2.1-4.0% of the total amount of the iron-containing mixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111413226.0A CN114136095A (en) | 2021-11-25 | 2021-11-25 | Microwave ignition device of sintering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111413226.0A CN114136095A (en) | 2021-11-25 | 2021-11-25 | Microwave ignition device of sintering machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114136095A true CN114136095A (en) | 2022-03-04 |
Family
ID=80391665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111413226.0A Pending CN114136095A (en) | 2021-11-25 | 2021-11-25 | Microwave ignition device of sintering machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114136095A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996000800A1 (en) * | 1994-06-29 | 1996-01-11 | Nippon Steel Corporation | Sintered steel manufacturing process |
| CN110595304A (en) * | 2019-08-20 | 2019-12-20 | 南京理工大学 | Ignition powder igniting device |
| CN110686574A (en) * | 2019-09-09 | 2020-01-14 | 电子科技大学 | Microwave ignition test device |
| CN111511090A (en) * | 2020-04-13 | 2020-08-07 | 北京工业大学 | Microwave plasma reactor |
| CN212082019U (en) * | 2020-01-19 | 2020-12-04 | 中冶长天国际工程有限责任公司 | Microwave ignition heat preservation device for sintering |
-
2021
- 2021-11-25 CN CN202111413226.0A patent/CN114136095A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996000800A1 (en) * | 1994-06-29 | 1996-01-11 | Nippon Steel Corporation | Sintered steel manufacturing process |
| CN110595304A (en) * | 2019-08-20 | 2019-12-20 | 南京理工大学 | Ignition powder igniting device |
| CN110686574A (en) * | 2019-09-09 | 2020-01-14 | 电子科技大学 | Microwave ignition test device |
| CN212082019U (en) * | 2020-01-19 | 2020-12-04 | 中冶长天国际工程有限责任公司 | Microwave ignition heat preservation device for sintering |
| CN111511090A (en) * | 2020-04-13 | 2020-08-07 | 北京工业大学 | Microwave plasma reactor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110793032B (en) | Oxygen-enriched combustion system of heating furnace and control method thereof | |
| CN101585524B (en) | Fugitive constituent and preheated air passage structure of tank type carbon calciner | |
| CN201313819Y (en) | Volatile matter and preheated air channel structure of calciner | |
| CN114136095A (en) | Microwave ignition device of sintering machine | |
| CN201000061Y (en) | Roasters special for steel-smelting ladle blast furnace gas | |
| CN218262368U (en) | Heating oil type coke oven | |
| CN111486702A (en) | Needle coke two-stage calcination coupling flue gas internal circulation method and device | |
| WO2020108223A1 (en) | Low-nitrogen stable combustion process and system for carbon black tail gas | |
| CN207635836U (en) | Energy-efficient automation tunnel oven | |
| CN201885572U (en) | MLCC (multilayer ceramic capacitor) atmosphere tunnel firing furnace completing rubber removal and firing once | |
| CN2713323Y (en) | Novel ignition system for blast furnace gas sintering machine | |
| CN101597057B (en) | Method for producing active carbon by core class charring material | |
| CN205133823U (en) | Low -power consumption carbon fiber continuous carbonization stove | |
| CN209853984U (en) | Combustion type glass tempering heating device | |
| CN203489270U (en) | Novel combustor | |
| CN202328267U (en) | Novel combustion device and mesh belt heating furnace provided with same | |
| CN202188508U (en) | Multi-channel air-gas heat accumulating type burner nozzle | |
| CN1869250A (en) | Ring body multi-hole short flame burner | |
| CN103224718A (en) | Equipment for producing semi-reinforcing purpose furnace black by utilization of thermal black cracked hydrogen and method thereof | |
| CN202836166U (en) | Large-section efficient and energy-saving gas tunnel kiln | |
| CN202945190U (en) | Dual-combustion-chamber equipment for producing carbon black by thermal cracking by using coproduced hydrogen-rich gas | |
| CN203657449U (en) | Vertical vanadium-nitrogen alloy calcining kiln capable of utilizing exhaust gas carbon monoxide | |
| CN217536114U (en) | Trolley type roasting reduction system | |
| CN216384230U (en) | Heating furnace spoiler | |
| CN214528830U (en) | Supplementary heating structure of coke oven carbonization chamber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |