CN107830736A - A kind of sintering ignition furnace and its IGNITION CONTROL technique - Google Patents
A kind of sintering ignition furnace and its IGNITION CONTROL technique Download PDFInfo
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- CN107830736A CN107830736A CN201711263699.0A CN201711263699A CN107830736A CN 107830736 A CN107830736 A CN 107830736A CN 201711263699 A CN201711263699 A CN 201711263699A CN 107830736 A CN107830736 A CN 107830736A
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- nozzles
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- gas
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Classifications
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- 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
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/48—Nozzles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Furnace Details (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention provides a kind of sintering ignition furnace and its IGNITION CONTROL technique, belong to sintering ignition device neck, including a fire box, the side nozzles gas pipe set up in a fire box more than a row, side nozzles gas pipe both ends are equipped with some row sides nozzles, the quantity of each row side nozzles be 1 and more than, connected with side nozzles gas pipe.For easily superfusion among charge level existing for the ignition furnace of prior art, the problem of the ignition results difference of both sides, it can ensure that sintering edge ignition intensity, and can makes intermediate region igniting not superfuse.
Description
Technical field
The invention belongs to sintering ignition device field, more particularly to a kind of sintering ignition furnace and its IGNITION CONTROL technique.
Background technology
Sintering ignition furnace belongs to the production process equipment of the main furnace charge of blast furnace ironmaking, and sintering ignition furnace is sintering production
One of key equipment, it mainly undertakes the charge level ignition function after chassis cloth, and weighing the good and bad key index of ignition furnace is
Meet effective igniting and the gas consumption in ignition amount of production technology.The nozzles (a certain row) of mainstay ignition furnace are typically common at present
With a gas inlet pipe, indifference between nozzles individual, it is that can not meet the differential igniting need of charge level that it, which has subject matter,
Ask.Chassis charge level intermediate region temperature is high, and ignition intensity demand is relatively low, and both sides of the edge regional temperature is relatively low, and raw meal particle size is inclined
Slightly, ignition intensity demand is big.High situation is required in face of actual charge level both sides ignition intensity, mainly by increasing house steward's Gas Flow
Amount, and suitable control intermediate region nozzles valve mode balances.But the low aperture control of single nozzles branch pipe is managed long and easily
How interior coking, knot block nozzles situation.Therefore often occur causing middle most of mistake to ensure that the igniting of charge level edge is good-looking
Molten situation.If both sides cloth is bad or the length of ignition furnace stove labour one, this problem are more aobvious serious.It is integrally saturating that this not only deteriorates sinter bed
Gas, economic and technical norms are reduced, also increase gas consumption amount.Sintering ignition furnace disclosed at present can not solve this and ask
Topic.
Chinese invention patent application, publication number：104807326A, publication date：On July 29th, 2015, disclose a kind of suitable
The sintering ignition furnace for answering charge level to fluctuate, including igniting section, soaking zone, it is characterised in that：A more than row is set up in igniting section furnace roof
Standby burner (1), standby burner (1) than igniting the normal burner of section (5) it is small from a distance from normal charge level (3).Set by this
Meter, the normal burner of a row (5) is set in igniting section, what this arranged that normal burner (5) meets that normal charge level (3) normally produces will
Ask, when charge level drops to lower level-lowering (4), using standby burner (1), reach burner and adapt to charge level change, remain optimal
The purpose of ignition distance, so as to reduce gas consumption.It is disadvantageous in that, however it remains sintering edge ignition intensity deficiency,
The problem of intermediate region igniting superfusion.
The content of the invention
Invention technical problems to be solved
For easily superfusion among charge level existing for the ignition furnace of prior art, the problem of the ignition results difference of both sides, the present invention
Provide a kind of sintering ignition furnace and its IGNITION CONTROL technique.It can ensure that sintering edge ignition intensity, and can make middle area
Domain igniting is not superfused.
2. technical scheme
To solve the above problems, technical scheme provided by the invention is：
A kind of sintering ignition furnace, including a fire box, the side nozzles gas pipe set up in a fire box more than a row, side
Nozzles gas pipe both ends are equipped with some row sides nozzles.
Preferably, the quantity of each row side nozzles be 1 and more than, connected with side nozzles gas pipe.
Preferably, the side nozzles of 1 row and the above are shared, are connected with side nozzles gas pipe.
Preferably, in addition to insulation thorax, insulation thorax are incubated between thorax and point fire box positioned at point fire box side and are provided with ignition furnace
Middle firebreak.
Preferably, in addition to first row nozzles gas pipe, second row nozzles gas pipe and gas main, described side are fiery
Mouth gas pipe is located between first row nozzles gas pipe and second row nozzles gas pipe, described first row nozzles gas pipe,
Two row's nozzles gas pipes and side nozzles gas pipe connect with gas main.
Preferably, described first row nozzles gas pipe connects with first row ignition tip, second row nozzles gas pipe and
Two row's ignition tips connect.
Preferably, described gas main is provided with supervisor's stop valve, described first row nozzles gas pipe, second row fire
The position rear end that mouth gas pipe and side nozzles gas pipe connect with gas main is sequentially provided with branch pipe gas stop valve and branch pipe
Gas regulator.
Preferably, described side nozzles gas pipe is between first row ignition tip and second row ignition tip.
Preferably, side nozzles gas pipe both ends are respectively provided with 3 row side nozzles, are connected with side nozzles gas pipe, point
Bao Kuo not side first row nozzles, side second row nozzles and the row's nozzles of side the 3rd.
Preferably, a kind of sintering ignition furnace in accordance with the above, control supervisor's stop valve and branch pipe gas stop valve, point
Gas main, first row nozzles gas pipe, coal gas on second row nozzles gas pipe and side nozzles gas pipe Dui Ying not controlled
Break-make；Branch pipe gas regulator is controlled, corresponds to the first row nozzles coal gas at control branch pipe gas regulator position respectively
The uninterrupted of coal gas on pipe, second row nozzles gas pipe and side nozzles gas pipe, so as to control intermediate region and side respectively
The ignition intensity in edge region, and it is unlikely to cross influence intermediate region nozzles ignition intensity.
3. beneficial effect
Using technical scheme provided by the invention, compared with prior art, have the advantages that：
(1) nozzles gas pipe in side no longer sets nozzles, by the ignition intensity in the middle part of other gas pipes control chassis, side
Some groups of side nozzles that side nozzles gas pipe both ends are provided with, lighted a fire for chassis two side areas, to strengthen side ignition intensity, control
Both sides of the edge ignition results processed.
(2) quantity for often arranging side nozzles can be depending on live specific operating mode, and each row side nozzles are along chassis two
The fringe region horizontal direction arrangement of side, may finally ensure chassis fringe region horizontal direction to light a fire, to strengthen side point
Fire intensity, control both sides of the edge ignition results.
(3) row of side nozzles can be depending on live specific operating mode, each side for arranging side nozzles along chassis both sides
Edge region longitudinal direction arrangement, may finally ensure chassis fringe region longitudinal direction to light a fire, to strengthen side ignition intensity,
Control both sides of the edge ignition results.
(4) after putting fire box igniting, temperature rises, and prevents that temperature leak is very fast followed by insulation thorax, plays insulation
Effect.
(5) most of among ignition furnace ignition zone is still two row's nozzles, first row nozzles gas pipe and second row nozzles
Gas pipe, the side nozzles gas pipe newly established on the basis of original, can effectively solve the edge effect of chassis, Ke Yitong
Gas flow and valve opening are overregulated to be adjusted intensity, and are unlikely to cross influence intermediate region nozzles ignition intensity.
Side nozzles gas pipe, which is set, also can effectively supplement ignition intensity inadequate problem in both sides of the edge existing for current double nozzles.So
It can realize and both can ensure that sintering edge ignition intensity, and can makes intermediate region igniting not superfuse, and nozzles are less prone to blocking
Situation.
(6) first row ignition tip and second row ignition tip are lighted a fire among ignition furnace ignition zone, in effectively controlling
Between region igniting only melt, and nozzles are less prone to blockage.
(7) by be responsible for stop valve control gas main on coal gas supply whether, branch pipe gas stop valve corresponds to respectively
The supply of coal gas on first row nozzles gas pipe, second row nozzles gas pipe and side nozzles gas pipe at control position
Whether, branch pipe gas regulator correspondingly controls first row nozzles gas pipe, second row nozzles gas pipe and the side at position
The uninterrupted of coal gas on the nozzles gas pipe of side, so as to control the ignition intensity of intermediate region and fringe region respectively, and it is unlikely
In cross influence intermediate region nozzles ignition intensity.It can so realize and both can ensure that sintering edge ignition intensity, during and can makes
Between region igniting only melt, and nozzles are less prone to blockage.
Brief description of the drawings
Fig. 1：Ignition furnace nozzles and branch gas tube the arrangement schematic diagram of the present invention.
1. second row nozzles gas pipe；2. side nozzles gas pipe；3. gas main；4. first row nozzles gas pipe；5.
It is responsible for stop valve；6. branch pipe gas stop valve；7. branch pipe gas regulator；8. first row ignition tip；9. second row ignition tip；
A 10. fire box；11. it is incubated thorax；12. nozzles；13. first group of side nozzles；14. second group of side nozzles；15. the 3rd group of side
Nozzles；16. firebreak among ignition furnace.
Embodiment
To further appreciate that present disclosure, with reference to drawings and Examples, the present invention is described in detail.
Embodiment 1
A kind of sintering ignition furnace, including a fire box 10, the side nozzles gas pipe set up in a fire box 10 more than a row
2, the both ends of side nozzles gas pipe 2 are equipped with some row sides nozzles 12.Side nozzles gas pipe 2 no longer sets nozzles, relies on
Ignition intensity in the middle part of other gas pipes control chassis, some groups of side nozzles 12 that the both ends of side nozzles gas pipe 2 are provided with, it is
Chassis two side areas is lighted a fire, and to strengthen side ignition intensity, controls both sides of the edge ignition results.
Embodiment 2
A kind of sintering ignition furnace, the quantity of each row side nozzles 12 for 1 and more than, with side nozzles gas pipe 2
Connection.The quantity for often arranging side nozzles 12 can be depending on live specific operating mode, and each row side nozzles 12 are along chassis both sides
Fringe region horizontal direction arrangement, may finally ensure chassis fringe region horizontal direction light a fire, with strengthen side igniting
Intensity, control both sides of the edge ignition results.
Embodiment 3
A kind of sintering ignition furnace, the side nozzles 12 of 1 row and the above are shared, connected with side nozzles gas pipe 2.Side
The row of nozzles 12 can be depending on live specific operating mode, each fringe region longitudinal direction side for arranging side nozzles 12 along chassis both sides
To arrangement, chassis fringe region longitudinal direction may finally be ensured to light a fire, to strengthen side ignition intensity, control both sides of the edge
Ignition results.
Embodiment 4
A kind of sintering ignition furnace, in addition to insulation thorax 11, insulation thorax 11 are incubated thorax 11 and igniting positioned at the point side of fire box 10
Firebreak 16 among ignition furnace is provided between thorax 10.After point fire box 10 is lighted a fire, temperature rises, and is prevented followed by insulation thorax 11
Temperature leak is very fast, plays a part of insulation.
Embodiment 5
A kind of sintering ignition furnace, in addition to first row nozzles gas pipe 4, second row nozzles gas pipe 1 and gas main 3,
Described side nozzles gas pipe 2 is between first row nozzles gas pipe 4 and second row nozzles gas pipe 1, and described first
Row's nozzles gas pipe 4, second row nozzles gas pipe 1 and side nozzles gas pipe 2 connect with gas main 3.
Most of among ignition furnace ignition zone is still two row's nozzles, first row nozzles gas pipe 4 and second row nozzles coal
Tracheae 1, the side nozzles gas pipe 2 newly established on the basis of original, can effectively solve the edge effect of chassis, Ke Yitong
Gas flow and valve opening are overregulated to be adjusted intensity, and are unlikely to cross influence intermediate region nozzles ignition intensity.
Side nozzles gas pipe 2, which is set, also can effectively supplement ignition intensity inadequate problem in both sides of the edge existing for current double nozzles.This
Sample can realize both can ensure that sintering edge ignition intensity, and can make intermediate region igniting do not superfuse, and nozzles be less prone to it is stifled
Plug-like condition.
Embodiment 6
A kind of sintering ignition furnace, described first row nozzles gas pipe 4 connect with first row ignition tip 8, second row nozzles
Gas pipe 1 connects with second row ignition tip 9.First row ignition tip 8 and second row ignition tip 9 are in ignition furnace ignition zone intermediate point
Fire, so as to effectively control intermediate region igniting not superfuse, and nozzles are less prone to blockage.
Embodiment 7
A kind of sintering ignition furnace, described gas main 3 are provided with supervisor's stop valve 5, described first row nozzles coal gas
The position rear end that pipe 4, second row nozzles gas pipe 1 and side nozzles gas pipe 2 connect with gas main 3 is sequentially provided with branch pipe coal
Gas stop valve 6 and branch pipe gas regulator 7.
By be responsible for stop valve 5 control gas main 3 on coal gas supply whether, branch pipe gas stop valve 6 corresponds to respectively
Coal gas on first row nozzles gas pipe 4, second row nozzles gas pipe 1 and side nozzles gas pipe 2 at control position
Whether supply, first row nozzles gas pipe 4, second row nozzles coal gas at the corresponding control position of branch pipe gas regulator 7
The uninterrupted of coal gas on pipe 1 and side nozzles gas pipe 2, so as to control the igniting of intermediate region and fringe region strong respectively
Degree, and it is unlikely to cross influence intermediate region nozzles ignition intensity.It can so realize and both can ensure that sintering edge ignition intensity,
And can makes intermediate region igniting not superfuse, and nozzles are less prone to blockage.
Embodiment 8
A kind of sintering ignition furnace, described side nozzles gas pipe 2 are located at first row ignition tip 8 and second row ignition tip 9
Between.The both ends of side nozzles gas pipe 2 are respectively provided with 3 row side nozzles 12, connect with side nozzles gas pipe 2, include respectively
Side first row nozzles 13, side second row nozzles 14 and the row's nozzles 15 of side the 3rd.
Embodiment 9
A kind of IGNITION CONTROL technique of sintering ignition furnace, a kind of sintering ignition furnace in accordance with the above, control supervisor cut
Disconnected valve 5 and branch pipe gas stop valve 6, correspond to control gas main 3, first row nozzles gas pipe 4, second row nozzles coal gas respectively
The break-make of coal gas on pipe 1 and side nozzles gas pipe 2；Branch pipe gas regulator 7 is controlled, corresponds to the coal gas regulation of control branch pipe respectively
The stream of coal gas on first row nozzles gas pipe 4, second row nozzles gas pipe 1 and side nozzles gas pipe 2 at the position of valve 7
Size is measured, so as to control the ignition intensity of intermediate region and fringe region respectively, and is unlikely to cross influence intermediate region nozzles
Ignition intensity.
Embodiment 10
A kind of sintering ignition furnace of the present invention, the demand characteristics of sintering production technique can be met very well.The device
Mainly it is responsible for by coal gas, is responsible for main valve, air inlet is in charge of, and is in charge of control valve, the composition such as furnace body of lighting a fire, multiple rows of igniting nozzles.
Most of among ignition furnace ignition zone is still two row's nozzles, its air intake branch connection coal gas supervisor, is continued to use general
Intake method.Chassis two side areas nozzles (per side two) are further added by a row on the basis of original two row, and this six nozzles are total to
With an air intake branch, coal gas supervisor is individually led to.
In face of chassis edge effect, can be adjusted by adjusting both sides nozzles branch pipe flow and valve opening strong
Degree, and it is unlikely to cross influence intermediate region nozzles ignition intensity.The row's nozzles setting of edge three also can effectively supplement double at present
Ignition intensity inadequate problem in both sides of the edge existing for nozzles.It can so realize and both can ensure that sintering edge ignition intensity, and can
Intermediate region igniting is set not superfuse, and nozzles are less prone to blockage.The novel ignition road strong adaptability, meets sintering ignition
Process requirements.The more preferable fiery function of point is realized, economic and technical norms are sintered beneficial to improving.
1) it is inadequate, to solve current ignition furnace edge ignition intensity, middle the problem of superfusing again of lighting a fire.
2) service life of sintering ignition nozzles, is improved, reduces nozzles plugging rate.
3) gas consumption in ignition amount, is reduced.
4), improve sintering ignition furnace planar condition and sintering gas permeability, improve sintering economic and technical norms.Improve yield rate
1%, solid burnup 1kg/t is reduced, whole year can save expense members up to a million.
In order to overcome shortcomings and deficiencies existing for above prior art, the invention discloses a kind of " novel sintered igniting
Stove ", using the present apparatus, can effectively solve easily superfusion among charge level existing for current ignition furnace, the disadvantage of both sides ignition results difference.
Present apparatus system suitability is strong, simple and reliable, and by being separately provided, the side igniting of chassis two is strengthened in regulation, and regulation improves middle area
Domain is lighted a fire, and can reduce sintering charge level influences gas permeability situation because superfusion is hardened, and then realizes raising sintering under the conditions of jljl material
Economic and technical norms.
Schematically the present invention and embodiments thereof are described above, this describes no restricted, institute in accompanying drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited thereto.So if common skill of this area
Art personnel are enlightened by it, without departing from the spirit of the invention, without designing and the technical scheme for creativeness
Similar frame mode and embodiment, protection scope of the present invention all should be belonged to.
Claims (10)
1. a kind of sintering ignition furnace, including a fire box (10), it is characterised in that the side of a more than row is set up in a fire box (10)
Side nozzles gas pipe (2), side nozzles gas pipe (2) both ends are equipped with some row sides nozzles (12).
2. a kind of sintering ignition furnace according to claim 1, it is characterised in that the quantity of each row side nozzles (12) is
1 and more than, connected with side nozzles gas pipe (2).
3. a kind of sintering ignition furnace according to claim 1, it is characterised in that share the side nozzles of 1 row and the above
(12), connected with side nozzles gas pipe (2).
4. according to a kind of sintering ignition furnace described in claim any one of 1-3, it is characterised in that also include insulation thorax (11),
Thorax (11) is incubated positioned at point fire box (10) side, firebreak among ignition furnace is provided between insulation thorax (11) and point fire box (10)
(16)。
5. according to a kind of sintering ignition furnace described in claim any one of 1-3, it is characterised in that also including first row nozzles coal
Tracheae (4), second row nozzles gas pipe (1) and gas main (3), described side nozzles gas pipe (2) are located at first row fire
Between mouth gas pipe (4) and second row nozzles gas pipe (1), described first row nozzles gas pipe (4), second row nozzles coal gas
Pipe (1) and side nozzles gas pipe (2) connect with gas main (3).
A kind of 6. sintering ignition furnace according to claim 5, it is characterised in that described first row nozzles gas pipe (4)
Connected with first row ignition tip (8), second row nozzles gas pipe (1) connects with second row ignition tip (9).
7. a kind of sintering ignition furnace according to claim 5, it is characterised in that described gas main (3) is provided with master
Pipe stop valve (5), described first row nozzles gas pipe (4), second row nozzles gas pipe (1) and side nozzles gas pipe (2)
The position rear end connected with gas main (3) is sequentially provided with branch pipe gas stop valve (6) and branch pipe gas regulator (7).
A kind of 8. sintering ignition furnace according to claim 6, it is characterised in that described side nozzles gas pipe (2) position
Between first row ignition tip (8) and second row ignition tip (9).
9. a kind of sintering ignition furnace according to claim 5, it is characterised in that side nozzles gas pipe (2) both ends are respectively set
There are 3 row side nozzles (12), connected with side nozzles gas pipe (2), respectively including side first row nozzles (13), side
Two row's nozzles (14) and the row's nozzles (15) of side the 3rd.
A kind of 10. IGNITION CONTROL technique of sintering ignition furnace, it is characterised in that：According to one described in claim any one of 1-9
Kind of sintering ignition furnace, control supervisor's stop valve (5) and branch pipe gas stop valve (6), correspond to control gas main (3), the respectively
The break-make of coal gas on one row's nozzles gas pipe (4), second row nozzles gas pipe (1) and side nozzles gas pipe (2)；Control branch pipe
Gas regulator (7), first row nozzles gas pipe (4) at control branch pipe gas regulator (7) position, the are corresponded to respectively
The uninterrupted of coal gas on two row's nozzles gas pipes (1) and side nozzles gas pipe (2), so as to control intermediate region and side respectively
The ignition intensity in edge region, and it is unlikely to cross influence intermediate region nozzles ignition intensity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711263699.0A CN107830736A (en) | 2017-12-04 | 2017-12-04 | A kind of sintering ignition furnace and its IGNITION CONTROL technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711263699.0A CN107830736A (en) | 2017-12-04 | 2017-12-04 | A kind of sintering ignition furnace and its IGNITION CONTROL technique |
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| Publication Number | Publication Date |
|---|---|
| CN107830736A true CN107830736A (en) | 2018-03-23 |
Family
ID=61641440
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711263699.0A Pending CN107830736A (en) | 2017-12-04 | 2017-12-04 | A kind of sintering ignition furnace and its IGNITION CONTROL technique |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113513920A (en) * | 2021-07-14 | 2021-10-19 | 马鞍山钢铁股份有限公司 | Sintering ignition furnace capable of balancing ignition quality and control method thereof |
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