CN206891178U - A kind of combustion gas blowing device - Google Patents
A kind of combustion gas blowing device Download PDFInfo
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- CN206891178U CN206891178U CN201720332693.3U CN201720332693U CN206891178U CN 206891178 U CN206891178 U CN 206891178U CN 201720332693 U CN201720332693 U CN 201720332693U CN 206891178 U CN206891178 U CN 206891178U
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- combustion gas
- gas injection
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- blowing
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Abstract
A kind of combustion gas blowing device, the device includes sintering pallet, seal closure, combustion gas blowing device, combustion gas blowing device includes combustion gas injection house steward, combustion gas is blown branch pipe, combustion gas injection tube is arranged, sintering pallet is located in seal closure, combustion gas injection house steward is arranged on the outside of seal closure, combustion gas injection tube arranges the top for being arranged on sintering pallet, and combustion gas injection tube is ranked in seal closure, combustion gas injection branch pipe one end connection combustion gas injection house steward connects combustion gas injection tube row with the other end, combustion gas injection tube row includes more combustion gas injection tubes, combustion gas injection tube is provided with combustion gas injection hole；Combustion gas injection branch pipe is provided with gas flow monitoring device.The combustion gas blowing device is also equipped with steam blowing equipment, by detecting the stopping state of combustion gas injection hole in real time, in the event of block, can by blowing steam in time, Rapid Cleaning combustion gas injection hole.
Description
Technical field
A kind of sintering machine combustion gas blowing device and its combustion gas blowing method are the utility model is related to, more particularly to one kind has
The sintering machine combustion gas blowing device and its sintering process of steam blowing equipment, belong to sintering art.
Background technology
Sintering process is to smelt iron a key link in flow, and its principle is that various powdery iron-containing raw materials, supplying is suitable
The fuel and flux of amount, appropriate water is added, makes material that a series of physical occur after blended and pelletizing on agglomerating plant
Change 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 sintering deposit is often that high intensity and height are gone back
Originality.In sintering circuit, typically require that sintering deposit has higher intensity, high finished product rate, the relatively low rate of return mine, and it is relatively low
Fuel consumption.The sintering deposit 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 requirement is by as one of bottleneck for restricting 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 considered from environmental protection angle, reduces sintering solid fuel this consumption ratio with reducing blast furnace burden
Fuel ratio turns into the urgent need of ironmaking technology.
Under this overall situation, " the sintering charge level gaseous fuel injection technology " of Japanese JFE companies exploitation arises at the historic moment, and it is former
Reason is that the gaseous fuel of below combustible concentration lower limit is diluted to by being blown above the sintering charge level of the latter segment distance of ignition furnace,
Make its combustion heat supplying in sinter bed, so as to reduce the solid carbon dosage and CO in sintering deposit production2Discharge capacity.Meanwhile
Because 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 sintering deposit and 5~10mm porositys are effectively strengthened.See at present
Carrying out the technology has preferable energy-saving and emission-reduction upgrading effect.
Blowing device structure under prior art：Blowing device is by being blown house steward, injection branch pipe, injection tube row, gas injection
Aperture blowing, blow and side seals form.Wherein it is blown house steward one end with plant area gas pipeline to be connected, the other end passes through injection
Branch pipe and injection tube row are connected, and injection tube is ranked in blow, and positioned at sintering pallet top.Combustion gas production when, from
Plant area's gas pipeline enters back into injection branch pipe after entering injection house steward, finally enters injection tube row and by being arranged on pipe row
Combustion gas injection hole spray, in blow with air mixed diluting, formed design requirement concentration mixed gases, into sintering
Assisted sintering inside the bed of material, side seals can effectively ensure that combustion gas will not be excessive outer to covering with mixed gases in cover.
Combustion gas blowing device under prior art blocks removing or cleaning means due to lacking effective spray orifice, is given birth to for a long time
Spray orifice is easily often blocked by tar in production, so as to trigger problems with：
1. injection is uneven：In production, after tar plugs gas jet orifice, if could not effectively be removed,
The hole there is no combustion gas ejection, which results in part without gas and situation that other local combustion gas spray volumes increase, serious shadow
The uniformity of injection is rung, and then the effect that assisted sintering is blown to combustion gas brings significant negative impact；
2. safety coefficient reduces：Because tar plugs gas jet orifice, other local location combustion gas spray volumes can be caused to increase
It is more, and combustion gas its each location point injection amount before the bed of material is sprayed into be have passed through calculating (just with air mixed diluting in cover
To design concentration).Increasing for local location gas quantity can cause the position gas concentration value to steeply rise, once concentration value reaches
The lower limit of gas explosion scope, then it is very possible to trigger blast, cause serious production accident；
3rd, spray orifice blocks, and cleaning is extremely difficult.Because sintering machine is constantly run, and sintering machine internal temperature is higher by (one
As be 400-600 DEG C), if injection hole plug, it is necessary to sintering machine is out of service, with the sintering deposit in whole device and device
After cooling, injection hole could be cleaned, this certainly will influence the operation of sintering machine；Meanwhile if sintering machine is out of service, it can influence
The running of whole process, equipment will also be affected including cooler etc.；In addition, if injection hole plug, stops sintering suddenly
The operation of machine, the sintering of sintering deposit in sintering machine will be influenceed, reduce product quality.
Utility model content
The defects of for prior art, we have been subject to Optimal improvements, power to it on existing blowing device architecture basics
Figure develops one kind can quickly find combustion gas injection hole stopping state, and the combustion gas that the very first time effectively removes in production
The blockage problem of injection hole, while corresponding flow feedback formula control method is developed, in the hope of making up prior art
Leak, reaching makes whole production line stable yields, the purpose of natural labor.A kind of combustion gas blowing device of the present utility model can be realized in real time
Detect combustion gas injection hole stopping state, in the event of block, can in time, Rapid Cleaning combustion gas injection hole.
According to the first embodiment provided by the utility model, there is provided a kind of combustion gas blowing device.Offer is especially provided
Combustion gas blowing device with steam blowing equipment.
A kind of combustion gas blowing device, the device include sintering pallet, seal closure (or making blow), combustion gas injection dress
Put.Combustion gas blowing device includes combustion gas injection house steward, combustion gas injection branch pipe, combustion gas injection tube row.Sintering pallet is positioned at sealing
In cover.Combustion gas injection house steward is arranged on the outside of seal closure.Combustion gas injection tube arranges the top for being arranged on sintering pallet, and fires
Gas blowout blowpipe is ranked in seal closure.Combustion gas injection branch pipe one end connection combustion gas injection house steward connects combustion gas injection tube with the other end
Row.Combustion gas injection tube row includes more combustion gas injection tubes.Combustion gas injection tube is provided with combustion gas injection hole.Set on combustion gas injection branch pipe
There is gas flow monitoring device.
Gas flow monitoring device is set on combustion gas injection branch pipe, the gas flow on branch pipe is monitored in real time, works as tar
When plugging gas jet orifice causes the gas flow to change, gas flow monitoring device can be detected rapidly.
Typically, the external diameter of combustion gas injection tube (304) is 30-200mm.
In the utility model, combustion gas blowing device also includes steam blowing equipment.That is, the utility model is provided to have and steamed
The combustion gas blowing device of vapour blow device.Steam blowing equipment includes main steam range, steam branch pipe, steam blowing pipe row.Steam
House steward is arranged on the outside of seal closure.Steam blowing pipe arranges the top for being arranged on sintering pallet, and steam blowing pipe row sets
Put between sintering pallet and combustion gas injection tube row.One end connection main steam range of steam branch pipe connects steam with the other end and blown
Sweep pipe row.Steam blowing pipe row includes more steam blowing pipes.Steam blowing pipe is provided with (multiple) steam purge hole.
Typically, the distance between combustion gas injection tube 304 and steam blowing pipe 504 are 30-200mm.
In the utility model, the opening direction of combustion gas injection hole is towards sintering pallet, the openings of steam purge hole
Arranged to towards combustion gas injection tube.
Steam blowing equipment is arranged on the top of sintering pallet, and steam blowing pipe row be arranged on sintering pallet with
Between combustion gas injection tube row, when combustion gas injection tube, which is raftinged, becomes a full member normal, steam blowing equipment is not run, and when tar plugs combustion
Gas spurt, causes part without gas and other local combustion gas spray volumes increase, and when having a strong impact on the uniformity of injection, starts steam
Blow device, spray in the more steam blowing pipes that high-temperature steam is arranged from steam blowing pipe, can effectively remove the gas injection of blocking
The materials such as the tar in hole.When the opening direction of combustion gas injection hole is towards sintering pallet, and the opening direction of steam purge hole
When being arranged towards combustion gas injection tube, steam blowing it is more efficient, also avoid steam from directly blowing to sintering pallet charge level and cause shadow
Ring.
Preferably, combustion gas injection house steward and main steam range are separately positioned on the both sides of sintering pallet.
In the utility model, a steam blowing pipe is equipped with immediately below each combustion gas injection tube.
Preferably, a steam purge hole on steam blowing pipe corresponds to the one or more of top combustion gas injection tube
(steam that i.e. a steam purge hole ejects can be purged to one or more of combustions to (such as 2 or 3) combustion gas injection hole
Gas blowout aperture blowing)；It is further preferred that the quantity of combustion gas injection hole under the direction of combustion gas injection tube with immediately below combustion gas injection tube
Steam blowing pipe direction on steam purge hole quantity it is equal or be substantially identical and each combustion gas injection hole with
A corresponding steam purge hole for lower section steam blowing pipe is in alignment with each other or aligns that (i.e. a steam purge hole ejects one by one
Steam can be purged to a corresponding combustion gas injection hole).
As optimal scheme, each steam purge hole on steam blowing pipe, with each in combustion gas injection tube
The position of combustion gas injection hole is corresponding, and steam purge hole is located at the underface of corresponding combustion gas injection hole.Height can be allowed by so setting
Warm steam directly, rapidly removes the materials such as the tar in combustion gas injection hole, the quick blockage problem for solving combustion gas injection hole, contracting
The short combustion gas caused by combustion gas injection hole blocks is blown the irregular influence time to sintering process, makes whole sintering process stable
Complete.
Preferably, the gas flow monitoring device is flow-through orifice.
Flow-through orifice, also referred to as orifice flowmeter, by standard orifice plate and multi-parameter differential pressure transmitter (or differential pressure transmitter,
Temperature transmitter and pressure transmitter) supporting ratio of components differential flow device, measurable gas, steam, the flow of liquid, structure
Simply, it is easy to maintenance, stable performance.
Preferably, the steam branch pipe is provided with jet chimney valve.
By being turned on and off jet chimney valve, control steam flows into or not flowed into steam branch pipe.When needing steam pair
When combustion gas injection hole is purged, jet chimney valve is opened；After purging, steam off pipeline valve.
In the utility model, combustion gas injection tube is that the combustion gas of more than 2 sections or 2 sections (such as 3 or 4 sections) is blown sleeve pipe.Combustion
The structure that sleeve pipe uses telescopic tube is blown in gas blowout.
Each section of preferably combustion gas injection sleeve pipe is provided with combustion gas injection hole.Combustion gas injection with combustion gas injection hole
Outer (straight) footpath of pipe or combustion gas injection sleeve pipe is usually 30-200mm, preferably 35-190mm, preferably 40-170mm, preferably 50-
150mm, more preferably 80-110mm, more preferably 89-108mm.
Outer (straight) footpath of steam blowing pipe with steam purge hole is usually 20-150mm, preferably 30-130mm, preferably
35-110mm, preferably 40-90mm, more preferably 45-70mm, more preferably 50 or 60mm.
The distance between combustion gas injection tube or combustion gas injection sleeve pipe and steam blowing pipe (refer to：Distance or vertical in-between
The distance in direction) it is usually 30-200mm, preferably 32-190mm, preferably 35-170mm, preferably 40-150mm, more preferably 45-
120mm, more preferably 50 or 60 or 70 or 80mm.
In the utility model, combustion gas injection house steward is provided with 1-10 roots combustion gas injection branch pipe, preferably 2-8 roots gas injection
Branch pipe is blown, gas flow monitoring device is equipped with each combustion gas injection branch pipe.
Preferably, the quantity of steam branch pipe is identical with the quantity of combustion gas injection branch pipe.
In the utility model, every combustion gas injection tube row is provided with or connected 2-50 root combustion gas injection tubes, preferably 3-
20 combustion gas injection tubes.
In the utility model, every combustion gas injection tube is provided with 2-100 combustion gas injection hole, preferably 3-50 combustion gas
Injection hole.
In the utility model, combustion gas blowing device also includes control system.Control system and gas flow monitoring device
Connect and control jet chimney valve.
Control system is connected with both gas flow monitoring device, jet chimney valve, obtains gas flow monitoring in real time
The Monitoring Data of device.When the Monitoring Data of gas flow monitoring device exceedes the threshold value of setting, control system automatically turns on
Jet chimney valve, steam flow into steam branch pipe, are sprayed from the steam purge hole of steam steam scavenging conduit, be purged to gas injection
In aperture blowing, the material of the blockings such as tar is understood.Whole process can be by control system automatic running, it is not necessary to manual operation, not
Shut down, without cooling in the case of, understand the material blocked on combustion gas injection hole rapidly, ensure the normal of whole sintering circuit
Operating, avoids having an impact the sintering of sintering deposit in sintering machine, ensures the stabilization of product quality.Device of the present utility model can
Used with coordinating following combustion gas blowing method.
A kind of combustion gas blowing method or the combustion gas blowing method using above-mentioned combustion gas blowing device, this method include following step
Suddenly：
1) whole device brings into operation, setting change can control value k, detect the combustion gas on each combustion gas injection branch pipe respectively
Combustion gas stream value W on flow monitoring device, n-th combustion gas are blown the gas flow in the gas flow monitoring device on branch pipe
Value is calculated as Wn；
2) the combustion gas stream value W ' in the gas flow monitoring device on each combustion gas injection branch pipe is monitored in real time respectively,
The real-time combustion gas stream value in gas flow monitoring device on n-th combustion gas injection branch pipe is calculated as Wn’；
3) control system calculates the gas flow rate of change δ in each combustion gas injection branch pipe, n-th combustion gas injection respectively
Gas flow rate of change on branch pipe is
4) the gas flow rate of change δ being respectively compared on each combustion gas injection branch pipenWith the size of k values：
If δnLess than k values, illustrate that the combustion gas injection hole in the combustion gas injection tube of n-th combustion gas injection branch pipe connection blocks
Situation is controllable, continues to run with, and gas flow monitoring device continues to monitor；
If δnEqual to or more than k values, illustrate the combustion gas injection in the combustion gas injection tube of n-th combustion gas injection branch pipe connection
Hole plug is serious, opens the jet chimney valve on steam branch pipe corresponding with combustion gas injection branch pipe by control system, steams
Vapour is blown out from steam purge hole, and steam enters combustion gas injection hole, is dredged combustion gas injection hole, is continued to run with；
Wherein：N is 1-10 integer, preferably 2-8 integer.
In the above method, the k values are 0.1-0.5, preferably 0.2-0.4, more preferably 0.25-0.35.
In the above method, control system closes the jet chimney valve after opening jet chimney valve 2-20 minutes, preferably
The jet chimney valve is closed after 3-10 minutes, the jet chimney valve is more preferably closed after 4-8 minutes.
The opening and closing of jet chimney are controlled by control system, the data monitored in real time according to gas flow monitoring device
Difference, open jet chimney valve, introduce steam purged.Gas flow is equipped with when each combustion gas is blown on branch pipe
When being equipped with jet chimney valve in monitoring device, the steam branch pipe, control system can be respectively compared each combustion gas injection
Gas flow rate of change δ on branch pipenWith the size of k values, selection is opened on steam branch pipe corresponding with combustion gas injection branch pipe
Jet chimney valve, realize precisely purging, it is rapid solve to block while, reduce influence of the steam to sintering.
When being produced using the utility model, because the blocking of combustion gas injection hole can be detected and given the very first time
Effectively to remove, therefore be not in situation of the local location without gas, the more gas of local location, so as to effectively prevent because combustion gas is blown
Product quality caused by uneven declines, because local location combustion gas excessively causes to reach explosion ratio lower limit initiation security incident
Situation occurs.
In summary, compared with prior art, serious forgiveness is higher, upgrading effect is more preferable, safety coefficient is higher, and does not have for this technology
There is increase excessive cost.It is contemplated that it has great potential in future market.
Brief description of the drawings
Fig. 1 is a kind of structural representation of combustion gas blowing device of the utility model；
Fig. 2 is a kind of overlooking structure figure of combustion gas blowing device of the utility model；
Fig. 3 is the structural representation that the utility model combustion gas injection tube is 3 gas fuel savings injection sleeve pipe；
Fig. 4 is the utility model control system schematic diagram；
Fig. 5 is a kind of flow chart of combustion gas blowing method of the utility model.
Reference：1：Sintering pallet；2：Seal closure；3：Combustion gas blowing device；301：Combustion gas is blown house steward；302：Combustion
Branch pipe is blown in gas blowout；303：Combustion gas injection tube is arranged；304：Combustion gas injection tube；305：Combustion gas injection hole；306：(Multi-section retractable) fires
Sleeve pipe is blown in gas blowout；4：Gas flow monitoring device；5：Steam blowing equipment；501：Main steam range；502：Steam branch pipe；503：Steam
Vapour scavenging conduit is arranged；504：Steam blowing pipe；505：Steam purge hole；6：Jet chimney valve；7：Control system.
Embodiment
According to the first embodiment provided by the utility model, there is provided a kind of combustion gas blowing device, especially provide offer
Combustion gas blowing device with steam blowing equipment.
A kind of combustion gas blowing device, the device include sintering pallet 1, seal closure 2, combustion gas blowing device 3.Combustion gas is blown
Device 3 includes combustion gas injection house steward 301, combustion gas injection branch pipe 302, combustion gas injection tube row 303.Sintering pallet 1 is positioned at sealing
In cover 2.Combustion gas injection house steward 301 is arranged on the outside of seal closure 2.Combustion gas injection tube row 303 is arranged on the upper of sintering pallet 1
Side, and combustion gas injection tube row 303 is in seal closure 2.Combustion gas injection branch pipe 302 one end connection combustion gas injection He of house steward 301
Other end connection combustion gas injection tube row 303.Combustion gas injection tube row 303 includes more combustion gas injection tubes 304.Combustion gas injection tube 304
It is provided with combustion gas injection hole 305.Combustion gas injection branch pipe 302 is provided with gas flow monitoring device 4.
Preferably, the device also includes steam blowing equipment 5.Blown that is, the utility model provides with steam
The combustion gas blowing device of sweeping device 5.Steam blowing equipment 5 includes main steam range 501, steam branch pipe 502, steam blowing pipe row
503.Main steam range 501 is arranged on the outside of seal closure 2.Steam blowing pipe row 503 is arranged on the top of sintering pallet 1, and
And steam blowing pipe row 503 is arranged between sintering pallet 1 and combustion gas injection tube row 303.One end connection of steam branch pipe 502
Main steam range 501 connects steam blowing pipe row 503 with the other end.Steam blowing pipe row 503 includes more steam blowing pipes 504.
Steam blowing pipe 504 is provided with steam purge hole 505.
In the utility model, the opening direction of combustion gas injection hole 305 is towards sintering pallet 1.Steam purge hole 505
Opening direction arranges 303 towards combustion gas injection tube.
Preferably, combustion gas injection house steward 301 and main steam range 501 are separately positioned on the both sides of sintering pallet 1.
In the utility model, the underface of each combustion gas injection tube 304 is equipped with a steam blowing pipe 504.
Preferably, a steam purge hole 505 corresponds to the one of top combustion gas injection tube 304 on steam blowing pipe 504
(steam that i.e. a steam purge hole 505 ejects can be purged to institute to individual or multiple (such as 2 or 3) combustion gas injection hole 305
State one or more combustion gas injection holes 305)；It is further preferred that combustion gas injection hole 305 under the direction of combustion gas injection tube 304
Quantity it is equal with the quantity of the steam purge hole 505 in the direction of the steam blowing pipe 504 immediately below combustion gas injection tube 304 or
Be substantially identical and each combustion gas injection hole 305 steam purge hole 505 corresponding to lower section steam blowing pipe 504 that
(steam that i.e. a steam purge hole 505 ejects can be purged to a corresponding combustion gas injection hole for this alignment
305)。
In the utility model, the gas flow monitoring device 4 is flow-through orifice.
Preferably, the steam branch pipe 502 is provided with jet chimney valve 6.
In the utility model, combustion gas injection tube 304 is 2 sections or the combustion gas injection sleeve pipe 306 of the 2 section above.Combustion gas is blown
Sleeve pipe 306 uses the structure of telescopic tube.
Each section of preferably combustion gas injection sleeve pipe 306 is provided with combustion gas injection hole 305.
In the utility model, combustion gas injection house steward 301 is provided with 1-10 roots combustion gas injection branch pipe 302, preferably 2-8 roots
Combustion gas is blown branch pipe 302, and gas flow monitoring device 4 is equipped with each combustion gas injection branch pipe 302.
Preferably, the quantity of steam branch pipe 502 is identical with the quantity of combustion gas injection branch pipe 302.
In the utility model, every combustion gas injection tube row 303 is provided with or connected 2-50 root combustion gas injection tube 304, excellent
Elect 3-20 root combustion gas injection tube 304 as.
In the utility model, every combustion gas injection tube 304 is provided with 2-100 combustion gas injection hole 305, preferably 3-50
Individual combustion gas injection hole 305.
Preferably, the device also includes control system 7.Control system 7 is connected and controlled with gas flow monitoring device 4
Jet chimney valve 6.
Outer (straight) footpath with the combustion gas injection tube 304 of combustion gas injection hole 305 or combustion gas injection sleeve pipe 306 is usually 30-
200mm, preferably 35-190mm, preferably 40-170mm, preferably 50-150mm, more preferably 80-110mm, more preferably 89-108mm.
Outer (straight) footpath of steam blowing pipe 504 with steam purge hole 505 is usually 20-150mm, preferably 30-
130mm, preferably 35-110mm, preferably 40-90mm, more preferably 45-70mm, more preferably 50 or 60mm.
The distance between combustion gas injection tube 304 or combustion gas injection sleeve pipe 306 and steam blowing pipe 504 (refer to：In-between away from
From or vertical direction with a distance from) be usually 30-200mm, preferably 32-190mm, preferably 35-170mm, preferably 40-150mm are more excellent
Select 45-120mm, more preferably 50 or 60 or 70 or 80mm.
According to second of embodiment provided by the utility model, there is provided a kind of combustion gas blowing method.
A kind of a kind of combustion gas blowing method (or, combustion gas injection and cleaning method), this method comprises the following steps：
1) whole device brings into operation, setting change can control value k, detect respectively on each combustion gas injection branch pipe 302
Combustion gas stream value W in gas flow monitoring device 4, n-th combustion gas are blown in the gas flow monitoring device 4 on branch pipe 302
Combustion gas stream value be calculated as Wn；
2) gas flow in the gas flow monitoring device 4 on each combustion gas injection branch pipe 302 is monitored in real time respectively
Value W ', the real-time combustion gas stream value in gas flow monitoring device 4 that n-th combustion gas is blown on branch pipe 302 are calculated as Wn’；
3) control system 7 calculates the gas flow rate of change δ in each combustion gas injection branch pipe 302, n-th combustion gas respectively
Injection branch pipe 302 on gas flow rate of change be
4) the gas flow rate of change δ being respectively compared on each combustion gas injection branch pipe 302nWith the size of k values：
If δnLess than k values, illustrate the combustion gas injection in the combustion gas injection tube 304 that n-th combustion gas injection branch pipe 302 connects
The stopping state of hole 305 is controllable, continues to run with, and gas flow monitoring device 4 continues to monitor；
If δnEqual to or more than k values, illustrate the combustion in the combustion gas injection tube 304 that n-th combustion gas injection branch pipe 302 connects
Gas blowout aperture blowing 305 blocks seriously, is opened by control system 7 on steam branch pipe 502 corresponding with combustion gas injection branch pipe 302
Jet chimney valve 6, steam are blown out from steam purge hole 505, and steam enters combustion gas injection hole 305, dredge combustion gas injection hole
305, continue to run with；
Wherein：N is 1-10 integer, preferably 2-8 integer.
In the utility model, the k values are 0.1-0.5, preferably 0.2-0.4, more preferably 0.25-0.35.
Control system 7 closes the jet chimney valve 6, preferably 3-10 minutes after opening jet chimney valve 62-20 minutes
After close the jet chimney valve 6, the jet chimney valve 6 is more preferably closed after 4-8 minutes.
Embodiment 1
According to Fig. 1-5, a kind of combustion gas blowing device, the device includes sintering pallet 1, seal closure 2, combustion gas injection
Device 3, combustion gas blowing device 3 include combustion gas injection house steward 301, combustion gas injection branch pipe 302, combustion gas injection tube row 303, sintering machine
Chassis 1 is located in seal closure 2, and combustion gas injection house steward 301 is arranged on the outside of seal closure 2, and combustion gas injection tube row 303 is arranged on burning
The top of machine trolley 1 is tied, and combustion gas injection tube row 303, in seal closure 2, combustion gas injection branch pipe 302 one end connects combustion gas
Injection house steward 301 connects combustion gas injection tube row 303 with the other end, and combustion gas injection tube row 303 includes more combustion gas injection tubes 304,
Combustion gas injection tube 304 is provided with combustion gas injection hole 305；Combustion gas injection branch pipe 302 is provided with gas flow monitoring device 4.Combustion gas
Flow monitoring device 4 is flow-through orifice.
Also include steam blowing equipment 5, steam blowing equipment 5 includes main steam range 501, steam branch pipe 502, steam blowing
Pipe row 503, main steam range 501 are arranged on the outside of seal closure 2, and steam blowing pipe row 503 is arranged on the upper of sintering pallet 1
Side, and steam blowing pipe row 503 is arranged between sintering pallet 1 and combustion gas injection tube row 303, the one of steam branch pipe 502
End connection main steam range 501 connects steam blowing pipe row 503 with the other end, and steam blowing pipe row 503 includes more steam blowings
Pipe 504, steam blowing pipe 504 are provided with steam purge hole 505.Steam branch pipe 502 is provided with jet chimney valve 6.
Combustion gas is blown house steward 301 and main steam range 501 is separately positioned on the both sides of sintering pallet 1.Combustion gas injection hole 305
Opening direction towards sintering pallet 1, the opening direction of steam purge hole 505 is towards combustion gas injection tube row 303.Each combustion
The underface of gas blowout blowpipe 304 is equipped with a steam blowing pipe 504.A steam purge hole 505 is right on steam blowing pipe 504
(steam that i.e. a steam purge hole 505 ejects can blow 2 combustion gas injection holes 305 of combustion gas injection tube 304 above Ying Yu
Sweep to 2 combustion gas injection holes 305).
Combustion gas injection tube 304 is 2 sections or the combustion gas injection sleeve pipe 306 of the 2 section above, and combustion gas injection sleeve pipe 306 is using flexible
The structure of formula sleeve pipe.Each section of combustion gas injection sleeve pipe 306 is provided with combustion gas injection hole 305.
Combustion gas injection house steward 301 is provided with 3 combustion gas and is blown branch pipe 302, is equipped with each combustion gas injection branch pipe 302
Gas flow monitoring device 4.The quantity of steam branch pipe 502 is identical with the quantity of combustion gas injection branch pipe 302.
Every combustion gas injection tube row 303 is provided with or connected 3 combustion gas injection tubes 304.Set in every combustion gas injection tube 304
There are 5 combustion gas injection holes 305.
Combustion gas blowing device also includes control system 7, and control system 7 is connected with gas flow monitoring device 4 and controls steaming
Vapour pipeline valve 6.
A kind of combustion gas blowing method or the combustion gas blowing method using above-mentioned combustion gas blowing device, this method include following step
Suddenly：
1) whole device brings into operation, setting change can control value k, detect respectively on each combustion gas injection branch pipe 302
Combustion gas stream value W in gas flow monitoring device 4, n-th combustion gas are blown in the gas flow monitoring device 4 on branch pipe 302
Combustion gas stream value be calculated as Wn；
2) gas flow in the gas flow monitoring device 4 on each combustion gas injection branch pipe 302 is monitored in real time respectively
Value W ', the real-time combustion gas stream value in gas flow monitoring device 4 that n-th combustion gas is blown on branch pipe 302 are calculated as Wn’；
3) control system 7 calculates the gas flow rate of change δ in each combustion gas injection branch pipe 302, n-th combustion gas respectively
Injection branch pipe 302 on gas flow rate of change be
4) the gas flow rate of change δ being respectively compared on each combustion gas injection branch pipe 302nWith the size of k values：
If δnLess than k values, illustrate the combustion gas injection in the combustion gas injection tube 304 that n-th combustion gas injection branch pipe 302 connects
The stopping state of hole 305 is controllable, continues to run with, and gas flow monitoring device 4 continues to monitor；
If δnEqual to or more than k values, illustrate the combustion in the combustion gas injection tube 304 that n-th combustion gas injection branch pipe 302 connects
Gas blowout aperture blowing 305 blocks seriously, is opened by control system 7 on steam branch pipe 502 corresponding with combustion gas injection branch pipe 302
Jet chimney valve 6, steam are blown out from steam purge hole 505, and steam enters combustion gas injection hole 305, dredge combustion gas injection hole
305, continue to run with；
Wherein：N is 3.
In the above method, the k values are 0.25.
In the above method, control system 7 opens jet chimney valve and the jet chimney valve 6 is closed after 64 minutes.
In the present embodiment, because the blocking of combustion gas injection hole can be detected and effectively removed the very first time, therefore
Be not in situation of the local location without gas, the more gas of local location, so as to effectively prevent caused by combustion gas injection is uneven
Product quality declines, because the situation that local location combustion gas excessively causes to reach explosion ratio lower limit initiation security incident occurs.
Embodiment 2
According to Fig. 1-2, Fig. 4-5, a kind of combustion gas blowing device, including sintering pallet 1, seal closure 2, combustion gas injection
Device 3, combustion gas blowing device 3 include combustion gas injection house steward 301, combustion gas injection branch pipe 302, combustion gas injection tube row 303, sintering machine
Chassis 1 is located in seal closure 2, and combustion gas injection house steward 301 is arranged on the outside of seal closure 2, and combustion gas injection tube row 303 is arranged on burning
The top of machine trolley 1 is tied, and combustion gas injection tube row 303, in seal closure 2, combustion gas injection branch pipe 302 one end connects combustion gas
Injection house steward 301 connects combustion gas injection tube row 303 with the other end, and combustion gas injection tube row 303 includes more combustion gas injection tubes 304,
Combustion gas injection tube 304 is provided with combustion gas injection hole 305；Combustion gas injection branch pipe 302 is provided with gas flow monitoring device 4.It is described
Gas flow monitoring device 4 is flow-through orifice.
Also include steam blowing equipment 5, steam blowing equipment 5 includes main steam range 501, steam branch pipe 502, steam blowing
Pipe row 503, main steam range 501 are arranged on the outside of seal closure 2, and steam blowing pipe row 503 is arranged on the upper of sintering pallet 1
Side, and steam blowing pipe row 503 is arranged between sintering pallet 1 and combustion gas injection tube row 303, the one of steam branch pipe 502
End connection main steam range 501 connects steam blowing pipe row 503 with the other end, and steam blowing pipe row 503 includes more steam blowings
Pipe 504, steam blowing pipe 504 are provided with steam purge hole 505.Steam branch pipe 502 is provided with jet chimney valve 6.
Combustion gas is blown house steward 301 and main steam range 501 is separately positioned on the both sides of sintering pallet 1.Combustion gas injection hole 305
Opening direction towards sintering pallet 1, the opening direction of steam purge hole 505 is towards combustion gas injection tube row 303.Each combustion
The underface of gas blowout blowpipe 304 is equipped with a steam blowing pipe 504.Combustion gas injection hole under the direction of combustion gas injection tube 304
The quantity of 305 quantity and the steam purge hole 505 in the direction of the steam blowing pipe 504 immediately below combustion gas injection tube 304
Equal and each combustion gas injection hole 305 steam purge hole 505 corresponding to lower section steam blowing pipe 504 is in alignment with each other
(steam that i.e. a steam purge hole 505 ejects can be purged to a corresponding combustion gas injection hole 305).
Combustion gas injection house steward 301 is provided with 8 combustion gas and is blown branch pipe 302, is equipped with each combustion gas injection branch pipe 302
Gas flow monitoring device 4.The quantity of steam branch pipe 502 is identical with the quantity of combustion gas injection branch pipe 302.Every combustion gas injection tube
Row 303 is provided with or connected 20 combustion gas injection tubes 304.Every combustion gas injection tube 304 is provided with 50 combustion gas injection holes 305.
Combustion gas blowing device also includes control system 7, and control system 7 is connected with gas flow monitoring device 4 and controls steaming
Vapour pipeline valve 6.
A kind of combustion gas blowing method or the combustion gas blowing method using above-mentioned combustion gas blowing device, this method include following step
Suddenly：
1) whole device brings into operation, setting change can control value k, detect respectively on each combustion gas injection branch pipe 302
Combustion gas stream value W in gas flow monitoring device 4, n-th combustion gas are blown in the gas flow monitoring device 4 on branch pipe 302
Combustion gas stream value be calculated as Wn；
2) gas flow in the gas flow monitoring device 4 on each combustion gas injection branch pipe 302 is monitored in real time respectively
Value W ', the real-time combustion gas stream value in gas flow monitoring device 4 that n-th combustion gas is blown on branch pipe 302 are calculated as Wn’；
3) control system 7 calculates the gas flow rate of change δ in each combustion gas injection branch pipe 302, n-th combustion gas respectively
Injection branch pipe 302 on gas flow rate of change be
4) the gas flow rate of change δ being respectively compared on each combustion gas injection branch pipe 302nWith the size of k values：
If δnLess than k values, illustrate the combustion gas injection in the combustion gas injection tube 304 that n-th combustion gas injection branch pipe 302 connects
The stopping state of hole 305 is controllable, continues to run with, and gas flow monitoring device 4 continues to monitor；
If δnEqual to or more than k values, illustrate the combustion in the combustion gas injection tube 304 that n-th combustion gas injection branch pipe 302 connects
Gas blowout aperture blowing 305 blocks seriously, is opened by control system 7 on steam branch pipe 502 corresponding with combustion gas injection branch pipe 302
Jet chimney valve 6, steam are blown out from steam purge hole 505, and steam enters combustion gas injection hole 305, dredge combustion gas injection hole
305, continue to run with；
Wherein：N is 8.
In the above method, the k values are 0.35.
In the above method, control system 7 opens jet chimney valve and the jet chimney valve 6 is closed after 68 minutes.
In the present embodiment, because the blocking of combustion gas injection hole can be detected and effectively removed the very first time, therefore
Be not in situation of the local location without gas, the more gas of local location, so as to effectively prevent caused by combustion gas injection is uneven
Product quality declines, because the situation that local location combustion gas excessively causes to reach explosion ratio lower limit initiation security incident occurs.
Claims (18)
1. a kind of combustion gas blowing device, the device includes sintering pallet (1), seal closure (2), combustion gas blowing device (3), combustion gas
Blowing device (3) includes combustion gas injection house steward (301), combustion gas injection branch pipe (302), combustion gas injection tube row (303), sinters board
Car (1) is located in seal closure (2), and combustion gas injection house steward (301) is arranged on the outside of seal closure (2), combustion gas injection tube row (303)
The top of sintering pallet (1) is arranged on, and combustion gas injection tube row (303) is located in seal closure (2), combustion gas injection branch pipe
(302) one end connection combustion gas injection house steward (301) connects combustion gas injection tube row (303), combustion gas injection tube row (303) with the other end
Including more combustion gas injection tubes (304), combustion gas injection tube (304) is provided with combustion gas injection hole (305)；
It is characterized in that：Combustion gas injection branch pipe (302) is provided with gas flow monitoring device (4), and
The external diameter of combustion gas injection tube (304) is 30-200mm.
2. combustion gas blowing device according to claim 1, it is characterised in that：The device also includes steam blowing equipment (5),
Steam blowing equipment (5) includes main steam range (501), steam branch pipe (502), steam blowing pipe row (503), main steam range
(501) outside of seal closure (2) is arranged on, steam blowing pipe row (503) is arranged on the top of sintering pallet (1), and steams
Vapour scavenging conduit row (503) is arranged between sintering pallet (1) and combustion gas injection tube row (303), one end of steam branch pipe (502)
Connection main steam range (501) connects steam blowing pipe row (503) with the other end, and steam blowing pipe row (503) includes more steam
Scavenging conduit (504), steam blowing pipe (504) are provided with steam purge hole (505),
Wherein, the distance between combustion gas injection tube (304) and steam blowing pipe (504) are 30-200mm.
3. combustion gas blowing device according to claim 2, it is characterised in that：The opening direction court of combustion gas injection hole (305)
To sintering pallet (1), the opening direction of steam purge hole (505) arranges (303) towards combustion gas injection tube；And/or
Combustion gas injection house steward (301) and main steam range (501) are separately positioned on the both sides of sintering pallet (1).
4. the combustion gas blowing device according to Claims 2 or 3, it is characterised in that：Each combustion gas injection tube (304) is just
Lower section is equipped with a steam blowing pipe (504).
5. combustion gas blowing device according to claim 4, it is characterised in that：The upper steam of steam blowing pipe (504) blows
Cleaning bottom of hole (505) corresponds to one or more combustion gas injection holes (305) of top combustion gas injection tube (304).
6. combustion gas blowing device according to claim 5, it is characterised in that：Combustion under the direction of combustion gas injection tube (304)
The quantity of gas blowout aperture blowing (305) is blown with the steam in the direction of the steam blowing pipe (504) immediately below combustion gas injection tube (304)
The quantity of cleaning bottom of hole (505) is equal and each combustion gas injection hole (305) steam purge hole (505) corresponding to lower section each other
Alignment.
7. according to the combustion gas blowing device any one of claim 2,3,5 or 6, it is characterised in that：The gas flow
Monitoring device (4) is flow-through orifice；And/or
The steam branch pipe (502) is provided with jet chimney valve (6).
8. combustion gas blowing device according to claim 4, it is characterised in that：The gas flow monitoring device (4) is stream
Orifice；And/or
The steam branch pipe (502) is provided with jet chimney valve (6).
9. according to the combustion gas blowing device any one of claim 2,3,5,6 or 8, it is characterised in that：Combustion gas injection tube
(304) combustion gas for 2 sections or the 2 section above is blown sleeve pipe (306), and combustion gas injection sleeve pipe (306) uses the structure of telescopic tube；
And/or
Combustion gas injection house steward (301) is provided with 1-10 roots combustion gas injection branch pipe (302), and each combustion gas is blown on branch pipe (302)
It is equipped with gas flow monitoring device (4).
10. combustion gas blowing device according to claim 4, it is characterised in that：Combustion gas injection tube (304) be 2 section or 2 section with
On combustion gas injection sleeve pipe (306), combustion gas injection sleeve pipe (306) use telescopic tube structure；And/or
Combustion gas injection house steward (301) is provided with 1-10 roots combustion gas injection branch pipe (302), and each combustion gas is blown on branch pipe (302)
It is equipped with gas flow monitoring device (4).
11. combustion gas blowing device according to claim 9, it is characterised in that：On each section of combustion gas injection sleeve pipe (306)
Provided with combustion gas injection hole (305)；And/or
Combustion gas injection house steward (301) is provided with 2-8 roots combustion gas injection branch pipe (302), the quantity and gas injection of steam branch pipe (502)
The quantity for blowing branch pipe (302) is identical.
12. combustion gas blowing device according to claim 10, it is characterised in that：Each section of combustion gas injection sleeve pipe (306)
It is provided with combustion gas injection hole (305)；And/or
Combustion gas injection house steward (301) is provided with 2-8 roots combustion gas injection branch pipe (302), the quantity and gas injection of steam branch pipe (502)
The quantity for blowing branch pipe (302) is identical.
13. according to the combustion gas blowing device any one of claim 2,3,5,6,8 or 10-12, it is characterised in that：Every
Combustion gas injection tube row (303) is provided with or connected 2-50 root combustion gas injection tubes (304)；And/or
Every combustion gas injection tube (304) is provided with 2-100 combustion gas injection hole (305).
14. combustion gas blowing device according to claim 4, it is characterised in that：Every combustion gas injection tube row (303) is provided with
Or connection 2-50 root combustion gas injection tubes (304)；And/or
Every combustion gas injection tube (304) is provided with 2-100 combustion gas injection hole (305).
15. combustion gas blowing device according to claim 13, it is characterised in that：Set on every combustion gas injection tube row (303)
Have or connect 3-20 root combustion gas injection tubes (304)；And/or
Every combustion gas injection tube (304) is provided with 3-50 combustion gas injection hole (305).
16. combustion gas blowing device according to claim 14, it is characterised in that：Set on every combustion gas injection tube row (303)
Have or connect 3-20 root combustion gas injection tubes (304)；And/or
Every combustion gas injection tube (304) is provided with 3-50 combustion gas injection hole (305).
17. combustion gas blowing device according to claim 7, it is characterised in that：The device also includes control system (7), control
System (7) processed is connected with gas flow monitoring device (4) and controls jet chimney valve (6).
18. combustion gas blowing device according to claim 8, it is characterised in that：The device also includes control system (7), control
System (7) processed is connected with gas flow monitoring device (4) and controls jet chimney valve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720332693.3U CN206891178U (en) | 2017-03-31 | 2017-03-31 | A kind of combustion gas blowing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720332693.3U CN206891178U (en) | 2017-03-31 | 2017-03-31 | A kind of combustion gas blowing device |
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| Publication Number | Publication Date |
|---|---|
| CN206891178U true CN206891178U (en) | 2018-01-16 |
Family
ID=61329044
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720332693.3U Active CN206891178U (en) | 2017-03-31 | 2017-03-31 | A kind of combustion gas blowing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278896A (en) * | 2018-03-28 | 2018-07-13 | 中冶长天国际工程有限责任公司 | A kind of sintering machine combustion gas blowing device and blowing method |
| CN112393599A (en) * | 2020-04-27 | 2021-02-23 | 中冶长天国际工程有限责任公司 | Tangential curtain cooling type gas injection sintering machine and control method thereof |
-
2017
- 2017-03-31 CN CN201720332693.3U patent/CN206891178U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278896A (en) * | 2018-03-28 | 2018-07-13 | 中冶长天国际工程有限责任公司 | A kind of sintering machine combustion gas blowing device and blowing method |
| CN108278896B (en) * | 2018-03-28 | 2023-04-28 | 中冶长天国际工程有限责任公司 | Gas injection device and method for sintering machine |
| CN112393599A (en) * | 2020-04-27 | 2021-02-23 | 中冶长天国际工程有限责任公司 | Tangential curtain cooling type gas injection sintering machine and control method thereof |
| CN112393599B (en) * | 2020-04-27 | 2022-06-07 | 中冶长天国际工程有限责任公司 | Tangential curtain cooling type gas injection sintering machine and control method thereof |
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