CN203177210U - Sintering cup ignition device - Google Patents
Sintering cup ignition device Download PDFInfo
- Publication number
- CN203177210U CN203177210U CN 201320147031 CN201320147031U CN203177210U CN 203177210 U CN203177210 U CN 203177210U CN 201320147031 CN201320147031 CN 201320147031 CN 201320147031 U CN201320147031 U CN 201320147031U CN 203177210 U CN203177210 U CN 203177210U
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- Prior art keywords
- sintering
- gas
- igniter
- flame
- secondary air
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- Expired - Fee Related
Links
- 238000005245 sintering Methods 0.000 title abstract description 33
- 238000007493 shaping process Methods 0.000 claims abstract description 11
- 238000009826 distribution Methods 0.000 abstract description 5
- 238000002156 mixing Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 32
- 238000000034 method Methods 0.000 description 8
- 239000002912 waste gas Substances 0.000 description 8
- 239000003034 coal gas Substances 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 5
- 239000003245 coal Substances 0.000 description 4
- 239000002817 coal dust Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000002791 soaking Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910001608 iron mineral Inorganic materials 0.000 description 1
- 239000003915 liquefied petroleum gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model discloses an ignition device of a sintering cup, wherein one side of a primary air mixing area is connected with a gas pipeline and a primary air pipeline, and the other side is connected with a flame burner; the secondary air shaping area is connected with a secondary air pipeline, a porous flow distribution baffle is arranged between a secondary air inlet and the reducing diameter of the secondary air shaping area, and the porous flow distribution baffle is an annular plate and is distributed with vent holes. The flow resistance of secondary air tends to be consistent by additionally arranging the flow dividing baffle, and the flow of the on-off surface of the flow is uniform and consistent, so that the flame length is uniform and consistent, the surface temperature uniformity of the sintering cup is improved, and the sintering quality is improved.
Description
Technical field
The utility model relates to the sintering technology field, specially refers to a kind of sintered cup igniter that can improve the flame uniformity.
Background technology
Igniter of sintering cup is to be the device of sintering ignition in the sintering experiment process, and it generally adopts coal gas or liquefied gas to act as a fuel, and adopts the mode of twice air-supply to light a fire then, and heat is provided for the sintering initial procedure, and the assurance sintering process is carried out smoothly.General igniter of sintering cup secondary wind is admission passage from the side, the air quantity of longshore current logical cross section ejection is different when flowing to spout like this, resistance away from inlet side is big, air quantity is little, and is little near the resistance of inlet side, air quantity is big, and the side that air quantity is big takes out that the coal that draws is large-minded, flame is long; The side that air quantity is little takes out that the coal that draws is narrow-minded, flame is short.Cause sintered cup section temperature inequality.Burner as three holes or five holes, it is longer the close secondary wind air intake oral-lateral length of flame generally can to occur, and shorter away from the secondary wind air intake oral-lateral length of flame, causes flame intensity at the circumferencial direction skewness, influence the thermally equivalent of sintering, and then cause sintering quality to be affected.
CN2713323Y discloses a kind of novel blast-furnace coal gas ignition of sintering process system, this system comprises cooler, waste gas fan housing, hot blast booster fan, gas piping, igniter, the waste gas fan housing is arranged on the cooler, the waste gas fan housing links to each other with hot blast booster fan input through hot air duct, gas piping links to each other with igniter simultaneously, the hot blast of discharging from cooler is through waste gas fan housing, hot air duct, hot blast deduster, and through hot blast booster fan pressurization back and from the coal gas of gas pipeline transportation service inlet point firearm together.CN 201697467 U relate to a kind of sintering machine blast furnace gas igniter, comprise dryer section, igniting section, soaking zone, coal gas burner, dryer section length accounts for the 10%-20% of igniter length overall, the igniting segment length accounts for the 40%-60% of igniter length overall, soaking zone length accounts for the 20%-40% of igniter length overall, and described igniter soaking zone also is provided with supercharging device.Announced that a kind of blast furnace gas that adopts substitutes the igniter that coke-stove gas carries out sintering ignition, is characterized in adopting blast furnace gas at a low price to carry out sintering ignition; CN 2157473Y announces and comprises coal dust processed and coal supply powder system, the system that gives gas, combustion air system, a plurality of burner and igniter body.Coal dust processed and coal supply powder system are made up of feeder, blower mill, booster fan, distributor, power transportation pipe and valve; The system that gives gas is made up of gas piping, branch gas tube and valve, and a plurality of burners are arranged, and each burner all is connected with coal dust transfer pipeline, branch gas tube and combustion air transfer pipeline.A kind of device that can adopt coal dust to carry out sintering ignition for this reason, has been equipped with corresponding abrasive dust and dust feeder; On multi-functional ignitor for sintering, CN 1003668 B have announced iron mineral powder agglomeration laboratory sintered cup igniter.This device has two gas chambers and air chamber, be assemblied on two gas chambers two groups totally 19 burners, and liquefied petroleum gas and pipeline systems such as combustion air, oxygen.By pressure and the consumption of regulator solution liquefied oil gas and combustion air, regulate O
2, N
2, CO
2The consumption of gas, and the proportioning of two groups of burner numbers can be controlled heat supply intensity, combustion intensity, burnt gas temperature and the exhaust gas constituents of igniter, thereby satisfy the requirement of igniting, insulation and some particular point ignition techniques of sintering experiment chamber sintered cup.A kind of can sintering ignition, again can be as the igniter of roasting; Aspect air preheat, CN2713323Y discloses a kind of novel blast-furnace coal gas ignition of sintering process system, this system comprises cooler, waste gas fan housing, hot blast booster fan, gas piping, igniter, the waste gas fan housing is arranged on the cooler, the waste gas fan housing links to each other with hot blast booster fan input through hot air duct, gas piping links to each other with igniter simultaneously, the hot blast of discharging from cooler is through waste gas fan housing, hot air duct, hot blast deduster, and through hot blast booster fan pressurization back and from the coal gas of gas pipeline transportation service inlet point firearm together.Adopt sinter cooler tail gas to carry out the igniter of warm-up combustion-supporting air, by the mode of preheating, saved energy resource consumption.Aspect even heating, CN 2074440U has announced a kind of novel sintered igniter, is provided with a moist closet by the igniter of many spray orifices burner and back and is constituted.This multi-port burner igniter, but direct-fire, flame form a curtain formula, can make that flame is evenly distributed on the sintering pallet width, and can obtain required short flame.
From above patent, domestic expert and researcher are comparatively extensive to ignitor for sintering research, but mainly relate to the igniter of pallet, the direction of research relates generally to that used combustion gas source, air preheat, flame are evenly heated, multi-functional ignitor for sintering etc., igniter of sintering cup is not conducted a research.
Aspect igniter of sintering cup, because it is single burner, the flame nozzle hole number is limited, therefore little by the space of improving flame nozzle hole number and distribution, simultaneously, the incorporation time that prolongs gaseous mixture then means and improves sintered cup length, for design and manufacturing provide difficulty.
The utility model content
The purpose of this utility model is the air quantity that the method for setting up distributing damper in the secondary wind porch of igniter of sintering cup redistributes secondary wind, make it that flow is evenly distributed on the circumferencial direction of igniter, the length of flame of igniter of sintering cup is evenly distributed, and the flame uniformity improves.
The utility model is achieved by following technical proposals:
The utility model provides a kind of sintered cup igniter that can improve the flame uniformity, and a side of a wind mixed zone connects gas piping, an airduct road, and opposite side connects flame burner nozzle; Secondary wind shaping region is connected with the secondary air channel road, it is characterized in that: between secondary wind shaping region secondary wind entrance and reducing the porous distributing damper is set, the porous distributing damper is annular plate, and air vent is distributing.
Air vent is the identical hole of size.Few in the number near the air vent of air intake oral-lateral, circulation area is little, and many away from the number of air intake oral-lateral air vent, circulation area is big.
Perhaps air vent is the different hole of area, and air vent evenly arranges on the porous distributing damper, and little at the area near the air vent of air intake oral-lateral, circulation area is little, and big away from the area of air intake oral-lateral air vent, circulation area is big.
The distributing homogeneity that adopts the porous distributing damper to improve secondary wind that is characterised in that of the present utility model is realized the identical target of burner muzzle velocity.Air vent is according to the shape of secondary wind shaping region, can adopt square, circular, polygon, ellipse and other polymorphic structures.It mainly acts on is to cause different drag losseses at the circulation section, makes the secondary wind of the VELOCITY DISTRIBUTION inequality that causes because of the drag losses difference, identical at the drag losses by longshore current break-make face behind the distributing damper, VELOCITY DISTRIBUTION is even.Thereby space gas amount unanimity, the length of flame of ejection are evenly distributed, thereby improve the temperature homogeneity of sintered cup.
Working method of the present utility model is entered by gas piping for the some fire gas and fully mixes a wind mixed zone with a wind that enters from airduct road, mixed space gas enters secondary wind shaping region, burn while mixing with the secondary wind of the porous distributing damper of flowing through from the secondary air channel road, and spray from the spout of flame burner nozzle.
By setting up distributing damper secondary wind flow resistance is reached unanimity, longshore current break-make surface current amount uniformity, thus make length of flame uniformity, improve sintered cup surface temperature uniformity, improve sintering quality.
Description of drawings
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is the A-A section of Fig. 1;
1 gas piping, 2 airduct roads, 3 secondary air channel roads, 4 flame burner nozzles, 5 wind mixed zones, 6 secondary wind shaping regions, 7 porous distributing dampers, 8 air vents.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
Be example with certain laboratory sintering test machine igniter of sintering cup, a side of a wind mixed zone 5 connects gas piping 1, an airduct road 2, and opposite side connects flame burner nozzle 4; Secondary wind shaping region 6 is connected with secondary air channel road 3, between secondary wind shaping region secondary wind entrance and reducing porous distributing damper 7 is set, and porous distributing damper 7 is annular plate, the identical air vent 8 of the size that distributing.As depicted in figs. 1 and 2, adopting liquefaction vapour is fuel, and thermic load is 3Nm
3/ h, baffle plate thickness 20mm, internal diameter 43mm, external diameter are 82mm, the circular hole of several φ 8mm that distribute on the baffle plate, the both sides draught area is than being 3:2.Setting gas speed is 10 m/s, and secondary wind wind speed is 15m/s, and burner flame and traditional burner (possessing 3 flame exports equally) flame sees the following form via velocity flow profile:
This shows that after taking distributing damper, the flow velocity of igniter of sintering cup exit longshore current break-make face gas is more even, speed difference control is at ± 5m/s.
Claims (3)
1. sintered cup igniter, a side of a wind mixed zone (5) connects gas piping (1), an airduct road (2), and opposite side connects flame burner nozzle (4); Secondary wind shaping region (6) is connected with secondary air channel road (3), it is characterized in that: porous distributing damper (7) is set between secondary wind shaping region (6) secondary wind entrance and reducing, and porous distributing damper (7) is annular plate, the air vent that distributing (8).
2. sintered cup igniter according to claim 1 is characterized in that: described air vent (8) is the identical hole of size.
3. sintered cup igniter according to claim 1 is characterized in that: described air vent (8) is the different hole of area, and air vent (8) is evenly arranged on the porous distributing damper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320147031 CN203177210U (en) | 2013-03-27 | 2013-03-27 | Sintering cup ignition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320147031 CN203177210U (en) | 2013-03-27 | 2013-03-27 | Sintering cup ignition device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203177210U true CN203177210U (en) | 2013-09-04 |
Family
ID=49073899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320147031 Expired - Fee Related CN203177210U (en) | 2013-03-27 | 2013-03-27 | Sintering cup ignition device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203177210U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104771960A (en) * | 2015-03-17 | 2015-07-15 | 石家庄新华能源环保科技股份有限公司 | Multi-turn burner device |
-
2013
- 2013-03-27 CN CN 201320147031 patent/CN203177210U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104771960A (en) * | 2015-03-17 | 2015-07-15 | 石家庄新华能源环保科技股份有限公司 | Multi-turn burner device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20200327 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |