CN108120293A - A kind of adjustable assisted sintering blowing device of gas concentration and its control method - Google Patents
A kind of adjustable assisted sintering blowing device of gas concentration and its control method Download PDFInfo
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- CN108120293A CN108120293A CN201710456386.0A CN201710456386A CN108120293A CN 108120293 A CN108120293 A CN 108120293A CN 201710456386 A CN201710456386 A CN 201710456386A CN 108120293 A CN108120293 A CN 108120293A
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- air
- combustion gas
- gas injection
- row
- branch pipe
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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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/16—Sintering; Agglomerating
Abstract
The present invention provides a kind of adjustable blowing device of gas concentration, including sintering pallet；Blow；Combustion gas blowing device, combustion gas blowing device includes combustion gas injection manifold, combustion gas injection branch pipe, combustion gas injection tube row, sintering pallet is located in seal closure, combustion gas injection manifold is arranged on the outside of blow, combustion gas injection tube is ranked in blow, and combustion gas injection tube arranges the top for being arranged on sintering pallet, and combustion gas injection branch pipe one end connection combustion gas injection manifold connects combustion gas injection tube row with the other end；Conditioner, conditioner includes air header, air branch pipe, air hose row, air header is arranged on the outside of blow, air hose is ranked in blow, and air hose arranges the top for being arranged on sintering pallet, and air branch pipe one end connection air header connects air hose row with the other end；Air branch pipe is equipped with air control valve.The present invention also provides gas concentration adjusting methods.
Description
Technical field
The invention belongs to sintering technology fields, and in particular to a kind of injection assisted sintering device for changing gas concentration and
Its control method.
Background technology
Sintering process is the key link smelted iron in flow, and principle is by various powdery iron-containing raw materials, and supplying is fitted
The fuel and flux of amount, add in suitable water, through mixing and making material that a series of physical occur on agglomerating plant after pelletizing
Variation is learned, sintering is blocking, and the next step is carried out so as to be sent to blast furnace.
In order to reduce the coke ratio of blast furnace ironmaking and smelting cost, requirement of the blast furnace to sinter is often that high intensity and height are gone back
Originality.In sintering circuit, generally require sinter that there is higher intensity, high finished product rate, the relatively low rate of return mine and relatively low
Fuel consumption.The sinter of high intensity and high reproducibility consumes less coke in blast furnace ironmaking process, so as to reduce dioxy
Change the discharge of carbon.In the long run consider, carbon dioxide discharge-reduction is required one of bottleneck as restriction development of iron ＆ steel industry.According to
Related data introduction, sintering account for the 60% of industrial discharge total amount with blast furnace process CO2 emissions.Therefore, no matter from enterprise
Industry reduces cost consideration and still considers from environmental protection angle, reduces sintering solid fuel this consumption ratio with reducing blast furnace burden
Fuel ratio becomes the urgent need of ironmaking technology.
Under this overall situation, " the sintering charge level gaseous fuel injection technology " of Japanese JFE companies exploitation comes into being, former
Reason be by the way that injection is diluted to gaseous fuel below combustible concentration lower limit above the sintering charge level of a distance after ignition furnace,
Make its combustion heat supplying in sinter bed, so as to reduce the solid carbon dosage and CO in sinter production2Discharge capacity.Meanwhile
Since the burning of gaseous fuel broadens high temperature bandwidth of the sinter bed in production, so that 1200~1400 DEG C of burning
Knot ore deposit temperature-time is extended, so that the intensity of sinter and 5~10mm porositys are effectively strengthened.It sees at present
Carry out the technology with preferable energy-saving and emission-reduction upgrading effect.
Blowing device structure under the prior art：Blowing device is by injection manifold, injection branch pipe, injection tube row, blow
It is formed with side seals.It is wherein blown manifold one end with plant area gas pipeline to be connected, the other end is by being blown branch pipe with being blown
Pipe row is connected, and injection tube ranking is in blow, and above sintering pallet.Combustion gas is in production, from plant area's Gas Pipe
Road enter injection manifold after enter back into injection branch pipe, finally enter injection tube row spray, in blow with air mixed diluting,
The mixed gases of design requirement concentration are formed, into sinter bed inside assisted sintering, side seals can effectively ensure that cover
Interior combustion gas will not be excessive outer to covering with mixed gases.
Coal gas injection assisted sintering device under the prior art, there are following defects in production：
1st, safety coefficient is not high：Since sintering machine is in production, often because cloth plus the unequal factor of water cause to expect
Face respective regions gas permeability is bad, so as to which " red mineral aggregate face " is presented in the region after by ignition furnace, i.e., the fire that ignition furnace is lighted
Flame is not extracted into charge level lower floor by bellows negative pressure, but rests on charge level.It can be thus blown to coal gas and bring very big peace
Full hidden danger, coal gas are easily ignited in " red mineral aggregate face " after being sprayed from blowing device, can so form open fire high-temperature region
Domain discharges into gas pipe the baking of row long term high temperature, once gas piping damages, then can cause the generation of production accident.
2nd, assisted sintering effect can not be ensured：" once red mineral aggregate face " enters in coal gas blowing device, the coal gas quilt of ejection
It lights, in bed of material external firing, loses coal gas in former technology completely and be drawn into the meaning burnt in the bed of material near combustion zone,
So not only unnecessary waste energy, and completely without assisted sintering, the auxiliaring effect of energy-saving and emission-reduction.
The content of the invention
For above two defects, we have been subject to Optimal improvements to it on existing blowing device architecture basics, have tried hard to
" red mineral aggregate face " operating mode can be monitored automatically by developing one kind, and it is auxiliary to be eliminated the safe shape coal-gas injection solved at the first time
Sintering equipment is helped, and has developed corresponding control method, in the hope of achieving the purpose that make whole production line stable yields, natural labor.
The first embodiment according to the present invention provides a kind of gas concentration adjustable blowing device, including
Sintering pallet；
Blow, sintering pallet are located in seal closure；
Combustion gas blowing device, combustion gas blowing device include combustion gas injection manifold, combustion gas injection branch pipe, combustion gas injection tube row,
Combustion gas injection manifold is arranged on the outside of blow, and the ranking of combustion gas injection tube is in blow, and combustion gas injection tube row is set
In the top of sintering pallet, combustion gas injection branch pipe one end connection combustion gas injection manifold connects combustion gas injection tube row with the other end；
Dilution air regulating device, the conditioner include air header, air branch pipe, air hose row, air
Manifold is arranged on the outside of blow, and air hose ranking is in blow, and air hose row is arranged on the upper of sintering pallet
Side, air branch pipe one end connection air header connect air hose row with the other end.
Preferably, blow forms a seal with sintering pallet.
" dilution air " refers to dilute the air of injection combustion gas in this application.
The present invention is additionally arranged conditioner, and air control valve is provided in air branch pipe.Blowing device is normal
During operation, air control valve is closed, and is entered in conditioner without air；And when the charge level of sintering pallet
When there is bad " the red mineral aggregate face " of gas permeability, then air control valve is opened, air enters air branch pipe from air header, finally
It arranges and is sprayed into blow from air hose, the rapid coal gas diluted in blow reduces gas concentration, avoids coal gas in " red mineral aggregate
It is ignited on face ", avoids harmful effect of the open fire high temperature to device and entire sintering process.
In the present invention, air header is equipped with n (n 1-10, preferably 2-8, more preferable 3-4) root air branch pipe, each
An air hose row is all connected in root air branch pipe.
Preferably, air branch pipe is equipped with air control valve.
Air control valve is equipped in each air branch pipe.More air branch pipes are set and air adjustment is installed respectively
Valve, can by some or certain the several air control valves of opening or closing of selectivity, in injection region to gas concentration into
Row is precisely adjusted, and while normal bed of material sintering is not influenced, the gas concentration for the region in " red mineral aggregate face " occur is adjusted
Section.The number of air branch pipe can need to set according to actual production.
Preferably, air hose row is arranged on the top of combustion gas injection tube row or is arranged on sintering pallet and gas injection
Between blowpipe row.
Preferably, combustion gas injection manifold is separately positioned on the both sides of sintering pallet with air header.
In the present invention, combustion gas injection tube row includes more combustion gas injection tubes, and combustion gas injection tube is equipped with combustion gas injection hole.
In the present invention, air hose row includes more air adjustment pipes, and air adjustment pipe is equipped with air louver.
In the present invention, each combustion gas injection tube row (303) is equipped with or connects 2-50 roots, preferably 3-20 roots combustion gas is blown
It manages (304).
In the present invention, every combustion gas injection tube (304) be equipped with 2-100, preferably 3-50 (such as 5-40, such as 6,8,
12,18,20) combustion gas injection hole (305).
In the present invention, each air hose row is equipped with or connects 2-50 roots, preferably 3-20 roots air adjustment pipe.
In the present invention, every air adjustment pipe be equipped with 2-100, preferably 3-50 (such as 5-40, such as 6,8,12,18,
20) air louver.
Preferably, air louver is vertically downward or obliquely；It is further preferred that air louver is arranged on air adjustment
Pipe is close to the one side of combustion gas injection tube.
Air louver is arranged on one side of the air adjustment pipe close to combustion gas injection tube, refers to be arranged on combustion as air hose row
During the top of gas blowout blowpipe row, air louver is arranged on the downward one side of air adjustment pipe；And when air hose row is arranged on burning
When tying between machine trolley and combustion gas injection tube row, air louver is arranged on the upward one side of air adjustment pipe.Air louver
Position of opening close to combustion gas injection tube, air can mix rapidly after spraying with coal gas, reduction gas concentration.
In the present invention, the adjustable blowing device of the gas concentration is additionally provided with image collecting device；Image collecting device
Blow inner wall is arranged on, is preferably provided with 1-5, more preferable 2-3 image collecting device.For detecting the material on sintering pallet
Flushing brightness.
Preferred image harvester is arranged on blow inner wall along the sintering pallet direction of motion.
More preferable image collecting device is uniformly arranged on along the sintering pallet direction of motion at the top of blow inner wall.
Image collecting device (such as high-definition camera), is arranged on blow inner wall, for monitoring sintering pallet in real time
The situation of charge level.Image collecting device is moved since one end that blow inner wall sintering pallet enters along sintering pallet
Direction is uniformly arranged, and the situation of charge level in entire sintering process can be monitored, and decides whether to need with charge level glow angle value
It opens air control valve and sprays into air, just started to solve the problems, such as red mineral aggregate face in sintering process, effectively avoid because of coal gas
A series of troubles caught fire and brought are contacted with red mineral aggregate face, achieve the purpose that stable yields, natural labor.
In the present invention, the adjustable blowing device of the gas concentration is additionally provided with control system, and control system is adopted with image
Acquisition means are connected, and control air control valve.
Second of embodiment according to the present invention provides a kind of gas concentration adjusting method or uses above-mentioned gas concentration
The method of adjustable blowing device, comprises the following steps：
1) whole device brings into operation, and combustion gas blowing device 3 starts to be blown combustion gas, sets red brightness settings B, image is adopted
Acquisition means monitor the glow degree detected value C of charge level on sintering pallet in real time, and the information Real-time Feedback monitored is extremely controlled
System；
2) control system carries out the flushing brightness detected value C of the sintering pallet feeding detected and red brightness settings B
Compare, if glow degree detected value C is less than red brightness settings B, continue to monitor；
If glow degree detected value C is more than red brightness settings B, control system opens air control valve, and air is from air tune
The air louver saved on pipe sprays, and dilutes gas concentration；
3) image collecting device is persistently monitored, and control system is persistently compared, and hot brightness detected value C is less than red
During brightness settings B, control system closes air control valve.
Further, method of the invention, wherein step 2) are specially：
A) red brightness settings B, is divided into m grades, is respectively B1、B2, to Bm, n roots air branch pipe (the n 1- of the corresponding device
10th, preferably 2-8, more preferable 3-4), along sintering pallet traffic direction, by n root air branch pipes be named as the 1st, the 2nd and
N-th air branch pipe；Wherein：M=n；
Image collecting device monitors the glow degree detected value C of charge level on sintering pallet, and the information that will be monitored in real time
Real-time Feedback is to control system；
B) control system is by the flushing brightness detected value C of the sintering pallet feeding detected and x grades of red brightness settings Bx
Be compared respectively, wherein x be 1-m in a numerical value, i.e. 1≤x≤m：
If glow degree detected value C is more than red brightness settings BxAnd less than red brightness settings Bx+1, and glow degree detects
Value C is less than red brightness settings Bm, then the air control valve on the 1st to xth root air branch pipe is opened, air is from air adjustment pipe
On air louver spray, dilute gas concentration；
If glow degree detected value C is more than red brightness settings Bm, then combustion gas blowing device (3) reduce combustion gas injection amount or
Person closes combustion gas blowing device (3), stops injection combustion gas.
The present invention can be realized by control system and coupled image collecting device, air control valve to sintering
The automatic adjusument of gas concentration in the process.When whole device brings into operation, image capturing system starts monitoring knot machine in real time
The glow degree detected value C of charge level on trolley, and transfer information to control system, control system is by by glow degree detected value C
With the red brightness settings B for having set and being classified1To BmIt is compared respectively, to determine which scope glow degree detected value C falls in
It is interior.
Hot brightness detected value C is less than red brightness settings B1When, i.e. glow degree detected value C is less than the minimum of default
Red brightness settings, the charge level of this glow degree influence less, without opening air control valve sintering process；
Hot brightness detected value C is more than red brightness settings BmAnd less than red brightness settings B2When, unlatching the 1st, the 2nd
Air control valve in root air branch pipe, air are sprayed from the air louver on air adjustment pipe, dilute gas concentration；
According to this, hot brightness glow degree detected value C is more than red brightness settings B1And less than red brightness settings Bx+1, then
The 1st air control valve to xth root air branch pipe is opened, air is sprayed from the air louver on air adjustment pipe, dilution
Gas concentration.
In the present invention, red brightness settings B point is m grades, be with device n roots air branch pipe (n 1-10, preferably 2-8,
More preferable 3-4) setting it is corresponding.Along sintering pallet traffic direction, by n root air branch pipes be named as the 1st, the 2nd,
With n-th air branch pipe.Then in process of production, can be classified to determine to need to open several according to the glow degree in red mineral aggregate face
Air branch pipe sprays into air.Red gray scale is higher, and the time that red mineral aggregate face disappearance needs is more long, so as to need to be diluted
Coal gas hop count it is also more, it is necessary to open air branch pipe it is also more.It is classified by the glow degree to red mineral aggregate face, and with
The unlatching number of air branch pipe corresponds to, and can imitate the gas concentration of dilution corresponding region, greatly improve the ignition point of coal gas, so may be used
It effectively avoids contacting a series of troubles caught fire and brought with red mineral aggregate face because of coal gas, operates rate of precision higher.
In this application, the length (or running length of sintering pallet) of sintering machine is 70-140 meters, preferably, 80-
It is 130 meters, 90-120 meters more preferable.
This technology compared with prior art, there is following advantage：
1st, safety coefficient is high：The present invention is using monitoring in advance, pre- spray Dilution air coal gas, so as to reduce the side of gas concentration
Formula effectively avoids the combustion gas of excessive concentration from contacting the possibility of postignition with red mineral aggregate face, protects gas piping and whole equipment,
Improve the safety coefficient of whole system production；
2nd, apparatus and method of the present invention can ensure assisted sintering effect, exist since the present invention has effectively evaded ejection coal gas
It catches fire outside charge level, all coal gas can be drawn into the bed of material to burn near combustion zone, therefore can ensure that coal gas injection auxiliary is burnt
Knot process can be smoothed out, and achieve the purpose that make whole production line stable yields, natural labor.
In conclusion by using this adjustable blowing device of new gas concentration and its control method, it can be effective
The defects of solving the prior art improves the safety coefficient and operating rate of package unit system, it is ensured that assisted sintering effect.It compares
The prior art is relatively reliable, safety and stablization, it is anticipated that it has great potential in future market.
Description of the drawings
Fig. 1 is a kind of structure diagram of the adjustable blowing device of gas concentration of the present invention；
Fig. 2 is gas firing point and gas concentration relation schematic diagram；
Fig. 3 is a kind of combustion gas blowing device schematic top plan view of the adjustable blowing device of gas concentration of the present invention；
Fig. 4 is a kind of schematic top plan view of the conditioner of the adjustable blowing device of gas concentration of the present invention；
Fig. 5 is control system schematic diagram of the present invention；
Fig. 6 is a kind of flow chart of gas concentration adjusting method of the present invention.
Reference numeral：1- sintering pallets；2- blows；3- combustion gas blowing devices；301- combustion gas is blown manifold；302- fires
Branch pipe is blown in gas blowout；303- combustion gas injection tube is arranged；304- combustion gas injection tubes；305- combustion gas injection holes；4- conditioners；401-
Air header；402- air branch pipes；403- air hoses are arranged；404- air adjustment pipes；405- air louvers；5- air adjustments
Valve；6- image collecting devices；7- control systems.
Specific embodiment
The first embodiment provided according to the present invention provides a kind of gas concentration adjustable blowing device.
A kind of adjustable blowing device of gas concentration, including：
Sintering pallet 1；Blow 2, sintering pallet 1 are located in seal closure 2；Combustion gas blowing device 3, combustion gas injection dress
Putting 3 includes combustion gas injection manifold 301, combustion gas injection branch pipe 302, combustion gas injection tube row 303, and combustion gas injection manifold 301 is arranged on
The outside of blow 2, combustion gas injection tube row 303 are located in blow 2, and combustion gas injection tube row 303 is arranged on sintering board
The top of vehicle 1,302 one end of combustion gas injection branch pipe connection combustion gas injection manifold 301 connect combustion gas injection tube row 303 with the other end；
Conditioner 4, conditioner 4 include air header 401, air branch pipe 402, air hose row 403, air header
401 are arranged on the outside of blow 2, and air hose row 403 is located in blow 2, and air hose row 403 is arranged on sintering board
The top of vehicle 1,402 one end of air branch pipe connection air header 401 connect air hose row 403 with the other end.
Preferably, air header 401 is equipped with n (n 1-10, preferably 2-8, more preferable 3-4) root air branch pipe 402.
An air hose row 403 is all connected in each air branch pipe 402.
Preferably, air branch pipe 402 is equipped with air control valve 5.
In the present invention, air hose row 403 is arranged on the top of combustion gas injection tube row 303 or is arranged on sintering pallet 1
Between combustion gas injection tube row 303.
Preferably, combustion gas injection manifold 301 is separately positioned on the both sides of sintering pallet 1 with air header 401.
In the present invention, combustion gas injection tube row 303 includes more combustion gas injection tubes 304.Combustion gas injection tube 304 is equipped with combustion
Gas blowout aperture blowing 305.
In the present invention, air hose row 403 includes more air adjustment pipes 404.Air adjustment pipe 404 is equipped with air tune
Knothole 405.
In the present invention, each combustion gas injection tube row 303 is equipped with or connects 2-50 roots, preferably 3-20 roots combustion gas injection tube
304。
In the present invention, every combustion gas injection tube 304 is equipped with the combustion gas of 2-100, preferably 3-50 injection hole 305.
In the present invention, each air hose row 403 is equipped with or connects 2-50 roots, preferably 3-20 roots air adjustment pipe 404.
In the present invention, every air adjustment pipe 404 is equipped with the air louvers of 2-100, preferably 3-50 405.
Preferably, air louver 405 is vertically downward or obliquely；It is further preferred that air louver 405 is arranged on sky
Gas regulation pipe 404 is close to the one side of combustion gas injection tube 304.
Preferably, the device is additionally provided with image collecting device 6.Image collecting device is arranged on 2 inner wall of blow.It is preferred that
Equipped with 1-5, more preferable 2-3 image collecting device 6.Preferred image harvester 6 is arranged on along 1 direction of motion of sintering pallet
2 inner wall of blow.More preferable image collecting device 6 is uniformly arranged on 2 inner wall top of blow along 1 direction of motion of sintering pallet
Portion.
Preferably, the device is additionally provided with control system 7.Control system 7 is connected with image collecting device 6, and controls sky
Gas regulating valve 5.
Second of the embodiment provided according to the present invention provides a kind of gas concentration adjusting method.
A kind of gas concentration adjusting method, comprises the following steps：
1) whole device brings into operation, and combustion gas blowing device 3 starts to be blown combustion gas, sets red brightness settings B, image is adopted
Acquisition means 6 monitor the glow degree detected value C of charge level on sintering pallet 1 in real time, and the information Real-time Feedback monitored is extremely controlled
System 7 processed；
2) control system 7 by the flushing brightness detected value C of 1 feeding of sintering pallet detected and red brightness settings B into
Row compares, if glow degree detected value C is less than red brightness settings B, continues to monitor；
If glow degree detected value C is more than red brightness settings B, control system 7 opens air control valve 5, and air is from air
Air louver 405 in regulation pipe 404 sprays, and dilutes gas concentration；
3) image collecting device 6 is persistently monitored, and control system 7 is persistently compared, and hot brightness detected value C is less than
During red brightness settings B, control system 7 closes air control valve 5.
Preferably, wherein step 2) is specially：
A) red brightness settings B, is divided into m grades, is respectively B1、B2、……Bm, (n is the n roots air branch pipe of the corresponding device
1-10, preferably 2-8, more preferable 3-4), along sintering pallet traffic direction, by n roots air branch pipe 402 be named as the 1st, the 2nd
Root and n-th air branch pipe 402；Wherein：M=n；
Image collecting device 6 monitors the glow degree detected value C of charge level on sintering pallet 1, and the letter that will be monitored in real time
Real-time Feedback is ceased to control system 7；
B) control system 7 is by the flushing brightness detected value C of 1 feeding of sintering pallet detected and x grades of red brightness settings
BxWherein x is compared respectively as a numerical value in 1-m, i.e. 1≤x≤m：
If glow degree detected value C is more than red brightness settings BxAnd less than red brightness settings Bx+1, and glow degree detects
Value C is less than red brightness settings Bm, then the air control valve 5 on the 1st to xth root air branch pipe 402 is opened, air is from air tune
Air louver 405 on section pipe 404 sprays, and dilutes gas concentration；
If glow degree detected value C is more than red brightness settings Bm, then combustion gas blowing device 3 reduce combustion gas injection amount or
Combustion gas blowing device 3 is closed, stops injection combustion gas.
Embodiment 1
As shown in Figs. 1-5, the adjustable blowing device of a kind of gas concentration, including
Sintering pallet 1；
Blow 2, sintering pallet (1) are located in seal closure (2), and blow 2 forms a sealing with sintering pallet 1
Body；
Combustion gas blowing device 3, combustion gas blowing device 3 include combustion gas injection manifold 301, combustion gas injection branch pipe 302, gas injection
Blowpipe row 303, combustion gas injection manifold 301 are arranged on the outside of blow 2, and combustion gas injection tube row 303 is located in blow 2, and
And combustion gas injection tube row 303 is arranged on the top of sintering pallet 1,302 one end of combustion gas injection branch pipe connection combustion gas injection manifold
301 connect combustion gas injection tube row 303 with the other end；
Conditioner 4, conditioner 4 includes air header 401, air branch pipe 402, air hose row 403, empty
Gas manifold 401 is arranged on the outside of blow 2, and air hose row 403 is located in blow 2, and air hose row 403 is arranged on burning
The top of machine trolley 1 is tied, 402 one end of air branch pipe connection air header 401 connects air hose row 403 with the other end；Air hose
Row 403 is arranged on the top of combustion gas injection tube row 303.
Combustion gas is blown the both sides that manifold 301 is separately positioned on sintering pallet 1 with air header 401.
Air header 401 is equipped with 3 air branch pipes 402, and an air hose row is all connected in each air branch pipe 402
403, each air branch pipe 402 is equipped with air control valve 5.
In the device, each combustion gas injection tube row 303 is equipped with or connects 15 combustion gas injection tubes 304.Every gas injection
Blowpipe 304 is equipped with 65 combustion gas injection holes 305.Each air hose row 403 is equipped with or connects 15 air adjustment pipes 404.
Every air adjustment pipe 404 is equipped with 65 air louvers 405.It is close that air louver 405 is arranged on air adjustment pipe 404
The one side of combustion gas injection tube 304.
The adjustable blowing device of the gas concentration is additionally provided with 2 image collecting devices 6, and image collecting device is arranged on spray
2 inner wall of cover is blown, 2 inner wall of blow is uniformly arranged on along 1 direction of motion of sintering pallet.
The adjustable blowing device of the gas concentration is additionally provided with control system 7, control system 7 and 6 phase of image collecting device
Even, and air control valve 5 is controlled.
Second of embodiment according to the present invention provides a kind of gas concentration adjusting method or uses above-mentioned gas concentration
The method of adjustable blowing device, comprises the following steps：
1) whole device brings into operation, and sets red brightness settings B, and image collecting device 6 monitors sintering pallet 1 in real time
The glow degree detected value C of upper charge level, and by the information Real-time Feedback monitored to control system 7；
2) control system 7 by the flushing brightness detected value C of 1 feeding of sintering pallet detected and red brightness settings B into
Row compares, if glow degree detected value C is less than red brightness settings B, continues to monitor；
If glow degree detected value C is more than red brightness settings B, control system 7 opens air control valve 5, and air is from air
Air louver 405 in regulation pipe 404 sprays, and dilutes gas concentration；
3) image collecting device 6 is persistently monitored, and control system 7 is persistently compared, and hot brightness detected value C is less than
During red brightness settings B, control system 7 closes air control valve 5.
Embodiment 2
As shown in figures 1 to 6, the adjustable blowing device of a kind of gas concentration, including
Sintering pallet 1；
Blow 2, sintering pallet (1) are located in seal closure (2), and blow 2 forms a sealing with sintering pallet 1
Body；
Combustion gas blowing device 3, combustion gas blowing device 3 include combustion gas injection manifold 301, combustion gas injection branch pipe 302, gas injection
Blowpipe row 303, combustion gas injection manifold 301 are arranged on the outside of blow 2, and combustion gas injection tube row 303 is located in blow 2, and
And combustion gas injection tube row 303 is arranged on the top of sintering pallet 1,302 one end of combustion gas injection branch pipe connection combustion gas injection manifold
301 connect combustion gas injection tube row 303 with the other end；
Conditioner 4, conditioner 4 includes air header 401, air branch pipe 402, air hose row 403, empty
Gas manifold 401 is arranged on the outside of blow 2, and air hose row 403 is located in blow 2, and air hose row 403 is arranged on burning
The top of machine trolley 1 is tied, 402 one end of air branch pipe connection air header 401 connects air hose row 403 with the other end；Air hose
Row 403 is arranged on the top of combustion gas injection tube row 303.
Combustion gas is blown the both sides that manifold 301 is separately positioned on sintering pallet 1 with air header 401.
Air header 401 is equipped with 4 air branch pipes 402, and an air hose row is all connected in each air branch pipe 402
403。
Air control valve 5 is equipped in each air branch pipe 402.
In the device, each combustion gas injection tube row 303 is equipped with or connects 20 combustion gas injection tubes 304.Every gas injection
Blowpipe 304 is equipped with 50 combustion gas injection holes 305.Each air hose row 403 is equipped with or connects 20 air adjustment pipes 404.
Every air adjustment pipe 404 is equipped with 50 air louvers 405.It is close that air louver 405 is arranged on air adjustment pipe 404
The one side of combustion gas injection tube 304.
The adjustable blowing device of the gas concentration is additionally provided with 3 image collecting devices 6, and image collecting device is arranged on spray
2 inner wall of cover is blown, is uniformly arranged on along 1 direction of motion of sintering pallet at the top of 2 inner wall of blow.
The adjustable blowing device of the gas concentration is additionally provided with control system 7, control system 7 and 6 phase of image collecting device
Even, and air control valve 5 is controlled.
A kind of gas concentration adjusting method, comprises the following steps：
1) whole device brings into operation, and combustion gas blowing device 3 starts to be blown combustion gas, sets red brightness settings B, is divided into 4
Grade is respectively B1、B2, to B4, 4 air branch pipes of the corresponding device, along sintering pallet traffic direction, by 4 air branch pipes
402 are named as the 1st, the 2nd, the 3rd and the 4th air branch pipe 402；
Image collecting device 6 monitors the glow degree detected value C of charge level on sintering pallet 1, and the letter that will be monitored in real time
Real-time Feedback is ceased to control system 7；
2) control system 7 is by the flushing brightness detected value C of 1 feeding of sintering pallet detected and 4 grades of red brightness settings B
It is compared respectively, if glow degree detected value C is less than red brightness settings B1, then continue to monitor；
If glow degree detected value C is more than red brightness settings B1And less than red brightness settings Bx(x=1-4), then is opened
Air control valve 5 on 1 to (x-1) root air branch pipe 402, air are sprayed from the air louver 405 on air adjustment pipe 404
Go out, dilute gas concentration；
If glow degree detected value C is more than red brightness settings B4, then combustion gas blowing device (3) reduce combustion gas injection amount or
Person closes combustion gas blowing device (3), stops injection combustion gas；
3) image collecting device 6 is persistently monitored, and control system 7 is persistently compared, and hot brightness detected value C is less than
Red brightness settings B1When, control system 7 closes air control valve 5.
Claims (10)
1. a kind of adjustable blowing device of gas concentration, including
Sintering pallet (1)；Blow (2), sintering pallet (1) are located in seal closure (2)；Combustion gas blowing device (3), combustion gas
Blowing device (3) includes combustion gas injection manifold (301), combustion gas injection branch pipe (302), combustion gas injection tube row (303), combustion gas injection
Manifold (301) is arranged on the outside of blow (2), and combustion gas injection tube row (303) is located in blow (2), and combustion gas is blown
Pipe row (303) is arranged on the top of sintering pallet (1), combustion gas injection branch pipe (302) one end connection combustion gas injection manifold (301)
Combustion gas injection tube row (303) is connected with the other end；It is characterized in that：Also set up a kind of dilution air regulating device (4), the sky
Gas control device (4) includes air header (401), air branch pipe (402), air hose row (403), and air header (401) is set
In the outside of blow (2), air hose row (403) is located in blow (2), and air hose row (403) is arranged on sintering machine
The top of trolley (1), air branch pipe (402) one end connection air header (401) connect air hose row (403) with the other end.
2. the apparatus according to claim 1, which is characterized in that air header (401) is equipped with n (n 1-10, preferably 2-
8th, more preferable 3-4) root air branch pipe (402), an air hose row (403) is all connected on each air branch pipe (402)；It is preferred that
, air branch pipe (402) is equipped with air control valve (5).
3. device according to claim 1 or 2, which is characterized in that air hose row (403) is arranged on combustion gas injection tube row
(303) top is arranged between sintering pallet (1) and combustion gas injection tube row (303)；And/or
Combustion gas injection manifold (301) is separately positioned on the both sides of sintering pallet (1) with air header (401).
4. device according to any one of claim 1-3, which is characterized in that combustion gas injection tube row (303) includes more
Combustion gas injection tube (304), combustion gas injection tube (304) are equipped with combustion gas injection hole (305)；And/or
Air hose row (403) includes more air adjustment pipes (404), and air adjustment pipe (404) is equipped with air louver
(405)。
5. according to the device any one of claim 1-4, which is characterized in that set on each combustion gas injection tube row (303)
Have or connect 2-50 roots, preferred 3-20 roots combustion gas injection tube (304)；And/or
Every combustion gas injection tube (304) is equipped with the combustion gas of 2-100, preferably 3-50 injection hole (305).
6. according to the device any one of claim 1-5, which is characterized in that each air hose row (403) be equipped with or
Connect 2-50 roots, preferably 3-20 roots air adjustment pipe (404)；And/or
Every air adjustment pipe (404) is equipped with the air louvers of 2-100, preferably 3-50 (405).
7. according to the device any one of claim 1-6, which is characterized in that the device is additionally provided with image collecting device
(6), image collecting device is arranged on blow (2) inner wall, is preferably provided with 1-5, more preferable 2-3 image collecting device (6)；It is excellent
Image collecting device (6) is selected to be arranged on blow (2) inner wall along sintering pallet (1) direction of motion；More preferable image collector
(6) are put to be uniformly arranged at the top of blow (2) inner wall along sintering pallet (1) direction of motion.
8. according to the device any one of claim 1-7, which is characterized in that the device is additionally provided with control system (7), control
System (7) processed is connected with image collecting device (6), and controls air control valve (5).
9. a kind of gas concentration adjusting method or usage right require the adjustable injection of gas concentration any one of 1-8
The method of device, comprises the following steps：
1) whole device brings into operation, and combustion gas blowing device (3) starts to be blown combustion gas, sets red brightness settings B, Image Acquisition
Device (6) monitors the glow degree detected value C of charge level on sintering pallet (1) in real time, and by the information Real-time Feedback monitored extremely
Control system (7)；
2) control system (7) by the flushing brightness detected value C of the sintering pallet detected (1) feeding and red brightness settings B into
Row compares, if glow degree detected value C is less than red brightness settings B, continues to monitor；
If glow degree detected value C is more than red brightness settings B, control system (7) opens air control valve (5), and air is from air
Air louver (405) in regulation pipe (404) sprays, and dilutes gas concentration；
3) image collecting device (6) is persistently monitored, and control system (7) is persistently compared, and hot brightness detected value C is less than
During red brightness settings B, control system (7) closes air control valve (5).
10. according to the method described in claim 9, wherein step 2) is specially：
A) red brightness settings B, is divided into m grades, is respectively B1、B2、……Bm, n roots air branch pipe (the n 1- of the corresponding device
10th, preferably 2-8, more preferable 3-4), along sintering pallet traffic direction, by n roots air branch pipe (402) be named as the 1st, the 2nd
Root and n-th air branch pipe (402)；Wherein：M=n；
Image collecting device (6) monitors the glow degree detected value C of charge level on sintering pallet (1), and the letter that will be monitored in real time
Real-time Feedback is ceased to control system (7)；
B) control system (7) is by the flushing brightness detected value C of the sintering pallet detected (1) feeding and x grades of red brightness settings Bx
Be compared respectively, wherein x be 1-m in a numerical value, i.e. 1≤x≤m：
If glow degree detected value C is more than red brightness settings BxAnd less than red brightness settings Bx+1, and glow degree detected value C is small
In red brightness settings Bm, then the 1st is opened to the air control valve (5) in xth root air branch pipe (402), and air is from air tune
Air louver (405) on section pipe (404) sprays, and dilutes gas concentration；
If glow degree detected value C is more than red brightness settings Bm, then combustion gas blowing device (3) reduction combustion gas injection amount or closing
Combustion gas blowing device (3) stops injection combustion gas.
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| CN201710456386.0A CN108120293B (en) | 2017-06-16 | 2017-06-16 | Auxiliary sintering blowing device with adjustable gas concentration and control method thereof |
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| CN201710456386.0A CN108120293B (en) | 2017-06-16 | 2017-06-16 | Auxiliary sintering blowing device with adjustable gas concentration and control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115218666A (en) * | 2021-11-22 | 2022-10-21 | 中冶长天国际工程有限责任公司 | Method for auxiliary sintering by alternately injecting gas and oxygen |
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| CN108120293B (en) | 2023-07-25 |
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