CN108120289A - A kind of combustion gas blowing device of sequential type and combustion gas blowing method - Google Patents
A kind of combustion gas blowing device of sequential type and combustion gas blowing method Download PDFInfo
- Publication number
- CN108120289A CN108120289A CN201710208071.4A CN201710208071A CN108120289A CN 108120289 A CN108120289 A CN 108120289A CN 201710208071 A CN201710208071 A CN 201710208071A CN 108120289 A CN108120289 A CN 108120289A
- Authority
- CN
- China
- Prior art keywords
- combustion gas
- steam
- gas injection
- jet chimney
- blowing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B21/00—Open or uncovered sintering apparatus; Other heat-treatment apparatus of like construction
-
- 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
A kind of combustion gas blowing device of sequential type, the device include：Sintering pallet；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, and combustion gas injection tube row includes more combustion gas injection tubes, and combustion gas injection tube is equipped with combustion gas injection hole；Steam blowing equipment, steam blowing equipment includes main steam range, steam branch pipe, steam blowing pipe row, steam blowing pipe row is arranged between sintering pallet and combustion gas injection tube row, and steam blowing pipe row includes more steam blowing pipes, and steam blowing pipe is equipped with steam purge hole；Steam branch pipe is equipped with jet chimney valve；Time set.A kind of combustion gas injection hole remove device of the present invention can realize continuous, timely, Rapid Cleaning combustion gas injection hole.
Description
Technical field
The present invention relates to a kind of sintering machine combustion gas blowing device of sequential type and combustion gas blowing method, more particularly to a kind of tool
There are the sintering machine combustion gas blowing device and its sintering process of steam blowing equipment, belong to sintering art.
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, gas injection
Aperture blowing, blow and side seals form.It is wherein blown manifold 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 ranking is in blow, and positioned at sintering pallet top.Combustion gas production when, from
Plant area's gas pipeline enter injection manifold after enter back into injection branch pipe, finally enter injection tube arrange and pass through be arranged on pipe arrange on
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 the prior art blocks removing or removing 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 situation that other local combustion gas spray volumes increase, serious shadow
The uniformity of injection is rung, and then significant negative impact is brought to the effect of combustion gas injection assisted sintering；
2. safety coefficient reduces：Since 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 limiting value of gas explosion scope, then it is very possible to trigger explosion, cause serious production accident；
3rd, spray orifice blocks, and cleaning is extremely difficult.Since 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 sinter 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, can influence
The running of entire process, equipment will also be affected including cooler etc.；In addition, if injection hole plug, stops sintering suddenly
The operation of machine will influence the sintering of sinter in sintering machine, reduce product quality.
The content of the invention
The defects of for the prior art, we have been subject to it Optimal improvements, power on existing blowing device architecture basics
Figure develops one kind can fast and automatically solve combustion gas injection hole stopping state in production, while develop corresponding
Sequential keyboard encoder control method in the hope of making up the loophole of the prior art, achievees the purpose that make whole production line stable yields, natural labor.The present invention
A kind of combustion gas blowing device can realize continuous, timely, Rapid Cleaning combustion gas injection hole.
The first embodiment according to the present invention, provides a kind of combustion gas blowing device, which includes：
Sintering pallet；
Seal closure (or making blow)；
Combustion gas blowing device, combustion gas blowing device include combustion gas injection manifold, combustion gas injection branch pipe, combustion gas injection tube row,
Sintering pallet is located in seal closure, and combustion gas injection manifold is arranged on the outside of seal closure, and combustion gas injection tube row is arranged on sintering
The top of machine trolley, and the ranking of combustion gas injection tube is in seal closure, combustion gas injection branch pipe one end connection combustion gas injection manifold and
Other end connection combustion gas injection tube row, combustion gas injection tube row include more combustion gas injection tubes, and combustion gas injection tube is equipped with gas injection
Aperture blowing；
Steam blowing equipment, steam blowing equipment include main steam range, steam branch pipe, steam blowing pipe row, main steam range
The outside of seal closure is arranged on, steam blowing pipe arranges the top for being arranged on sintering pallet, and steam blowing pipe row is arranged on
Between sintering pallet and combustion gas injection tube row, one end connection main steam range of steam branch pipe connects steam blowing pipe with the other end
Row, steam blowing pipe row include more steam blowing pipes, and steam blowing pipe is equipped with (multiple) steam purge hole；
Steam branch pipe is equipped with jet chimney valve；With
Time set.
In the present invention, the opening direction of combustion gas injection hole is towards sintering pallet.The opening direction court of steam purge hole
It is arranged to 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 steam blowing equipment starts, more steam blowing pipes that high-temperature steam is arranged from steam blowing pipe
Middle ejection can effectively remove the substances such as tar in the gas jet orifice of blocking.When the opening direction direction sintering of combustion gas injection hole
Machine trolley, and the opening direction of steam purge hole towards combustion gas injection tube arrange when, steam blowing it is more efficient, also avoid steam
Directly sintering pallet charge level is blowed to impact.
Preferably, combustion gas injection manifold and main steam range are separately positioned on the both sides of sintering pallet.
In the present invention, it is equipped with a steam blowing pipe 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).
In the present invention, main steam range is equipped with n root steam branch pipes.A jet chimney valve is set on each steam branch pipe
Door.It is set on n-th steam branch pipe and has plenty of n-th of jet chimney valve；Wherein, n 2-10 are preferably 3-8.
By being turned on and off jet chimney valve, control steam flows into or does not flow 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.As preferred
Scheme is equipped with a steam blowing pipe, and each combustion gas in combustion gas injection tube immediately below each combustion gas injection tube
It is all provided on steam blowing pipe immediately below injection hole there are one steam purge hole, high-temperature steam can be allowed directly, rapidly by so setting
The substances such as tar removed in combustion gas injection hole, the quick blockage problem for solving combustion gas injection hole shortens because of combustion gas injection hole
Combustion gas caused by blocking is blown the irregular influence time to sintering process, smoothly achieves entire sintering process.
In the present invention, combustion gas injection tube is blown casing for the combustion gas of 2 sections or 2 sections above (such as 3 or 4 sections).Gas injection
Blow the structure that casing uses telescopic tube.
Each section of preferably combustion gas injection casing is equipped with combustion gas injection hole.Combustion gas injection with combustion gas injection hole
Outer (straight) footpath of pipe or combustion gas injection casing is usually 30-200mm, preferably 35-190mm, preferably 40-170mm, preferably 50-
150mm, more preferable 80-110mm, more preferable 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 preferable 45-70mm, more preferable 50 or 60mm.
The distance between combustion gas injection tube or combustion gas injection casing 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 preferable 45-
120mm, more preferable 50 or 60 or 70 or 80mm.
In the present invention, combustion gas injection manifold is equipped with the combustion gas of 1-10 roots and is blown branch pipe, is preferably 2-8 roots combustion gas injection branch
Pipe.
In the present invention, combustion gas blowing device further includes control system.Control system is connected with time set and controls steaming
Vapour pipeline valve.
Second of embodiment according to the present invention provides a kind of 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, preset time node t1, system timing device starts timing；
2) when device runs to t1When, start all jet chimney valves, steam is blown out from steam purge hole, and steam enters
Combustion gas injection hole dredges combustion gas injection hole；
3) after jet chimney valve opening x minutes, all jet chimney valves are closed；
4) after jet chimney valve is closed y minutes, all jet chimney valves are again started up；
It cycles successively, jet chimney valve opening closes all jet chimney valves after x minutes；Jet chimney valve closes
After closing y minutes, all jet chimney valves are again started up.
In the above method, the t1The time point of the 0-15 days is run for device；Preferably 2-12 days, more preferably 6-10
My god.
In the above method, the x is 2-20, is preferably 4-10, more preferably 5-8；The y is 10-60, is preferably 15-
40, more preferably 20-30.
The opening and closing of jet chimney of the present invention are controlled by control system.Control system is connected and controls with time set
Jet chimney valve, when whole device brings into operation, time set starts timing, when reaching default timing node t1When, it opens
All jet chimney valves are moved, steam is blown out from steam purge hole, and steam enters combustion gas injection hole, dredges combustion gas injection hole；It steams
Behind steam pipe road valve opening x minutes, all jet chimney valves are closed；After jet chimney valve is closed y minutes, institute is again started up
There is jet chimney valve.t1, x, y value can be set and be changed according to needs of production, when the blocking of combustion gas injection hole shows
As it is not serious when, t can be appropriately extended1It is time, on the contrary then shorten t1Time.X and y values determine jet chimney open and close when
Between, when the clogging of combustion gas injection hole is serious, the value of x can be increased or increase the number of purging, it is same solving to block
When, reduce influence of the steam to sintering.
The third embodiment according to the present invention provides another combustion gas blowing method.
A kind of combustion gas blowing method or use a kind of above-mentioned combustion gas blowing method of combustion gas blowing device, this method include with
Lower step：
1) whole device brings into operation, preset time node t1, system timing device starts timing；
2) when device runs to t1When, start first jet chimney valve；Steam is from the steam of first steam branch pipe
Purge hole is blown out, and steam enters combustion gas injection hole, dredges combustion gas injection hole；
3) first jet chimney valve opening closes first jet chimney valve after a minutes；
4) after first jet chimney valve is closed b minutes, second jet chimney valve is opened, steam is steamed from second
The steam purge hole blowout of vapour branch pipe, steam enter combustion gas injection hole, dredge combustion gas injection hole；
5) second jet chimney valve opening closes second jet chimney valve after a minutes；
6) step 4 and 5 is repeated, (n-1)th jet chimney valve opening is opened successively after a minutes, closes (n-1)th steam
Pipeline valve；After (n-1)th jet chimney valve is closed b minutes, n-th of jet chimney valve is opened；
7) n-th of jet chimney valve opening is after a minutes, n-th of closing jet chimney valve b minutes；Time set is returned
Zero, return to step 2 continues to run with；
Wherein：N is 2-10, is preferably 3-8.
In the above method, the t1The time point of the 0-15 days is run for device；Preferably 2-12 days, more preferably 6-10
My god.
In the above method, a is 2-20, is preferably 4-10, more preferably 5-8；The b is 1-10, is preferably 2-8,
More preferably 3-5.
The present invention combustion gas blowing device, can set while open all jet chimney valves, can also in order according to
Secondary each jet chimney valve of opening and closing.Order opens and closes jet chimney valve and can purge successively, is clear every
More combustion gas injection tubes on one combustion gas injection tube row, while other combustion gas injection tubes row can run well, and ensure to steam
While the cleaning effect of vapour, also ensure that the gas concentration of sintering pallet charge level is unaffected, ensure sintering process smoothly into
Row.t1, x, y value can be set and be changed according to needs of production, can when the clogging of combustion gas injection hole is not serious
T is appropriately extended1It is time, on the contrary then shorten t1Time.X and y values determine the time that each jet chimney opens and closes, and work as combustion gas
When the clogging of injection hole is serious, the value of x can be increased or increase the number of purging, while solving to block, reduce steam
Influence to sintering.
When being produced using the present invention, carry out steam soaking, the blocking energy of combustion gas injection hole due to timing cycles
Enough it is efficiently prevented, therefore there is no situation of the local location without gas, the more gas of local location, so as to effectively prevent because of gas injection
Uneven caused product quality is blown to decline, because local location combustion gas excessively causes to reach explosion ratio lower limit initiation security incident
Happen.
In conclusion this technology is compared with prior art, serious forgiveness higher, upgrading effect are more preferable, safety coefficient higher, and do not have
There is increase excessive cost.It is contemplated that it has great potential in future market.
Description of the drawings
Fig. 1 is a kind of structure diagram of combustion gas blowing device of the present invention；
Fig. 2 is a kind of overlooking structure figure of combustion gas blowing device of the present invention；
Fig. 3 is the structure diagram that combustion gas injection tube of the present invention is 3 gas fuel savings injection casing；
Fig. 4 is control system schematic diagram of the present invention；
Fig. 5 is a kind of flow chart of combustion gas blowing method of the present invention；
Fig. 6 is the flow chart of another combustion gas blowing method of the present invention.
Reference numeral：1：Sintering pallet；2：Seal closure；3：Combustion gas blowing device；301：Combustion gas is blown manifold；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：Combustion gas is blown casing；4：
Time set；5：Steam blowing equipment；501：Main steam range；502：Steam branch pipe；503：Steam blowing pipe is arranged；504：Steam is blown
Sweep pipe；505：Steam purge hole；6：Jet chimney valve；7：Control system.
Specific embodiment
According to the first embodiment provided by the utility model, a kind of combustion gas blowing device of sequential type is provided.
A kind of combustion gas blowing device of sequential type, the device include：
Sintering pallet 1；
Seal closure 2；
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, sintering pallet 1 is located in seal closure 2, and combustion gas injection manifold 301 is arranged on the outside of seal closure 2, gas injection
Blowpipe row 303 is arranged on the top of sintering pallet 1, and combustion gas injection tube row 303 is located in seal closure 2, combustion gas injection branch
302 one end of pipe connection combustion gas injection manifold 301 connects combustion gas injection tube row 303 with the other end, and combustion gas injection tube row 303 includes more
Root combustion gas injection tube 304, combustion gas injection tube 304 are equipped with combustion gas injection hole 305；
Steam blowing equipment 5, steam blowing equipment 5 include 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, and 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, and steam blowing pipe row 503 includes more steam blowing pipes 504,
Steam blowing pipe 504 is equipped with (multiple) steam purge hole 505；
Steam branch pipe 502 is equipped with jet chimney valve 6；
Time set 4.
In the present invention, the opening direction of combustion gas injection hole 305 is towards sintering pallet 1.The opening of steam purge hole 505
303 are arranged towards combustion gas injection tube in direction.
Preferably, combustion gas injection manifold 301 and main steam range 501 are separately positioned on the both sides of sintering pallet 1.
In the present invention, 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 a 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 present invention, main steam range 501 is equipped with n roots steam branch pipe 502, and one is set on each steam branch pipe 502
Jet chimney valve 6.It is set on n-th steam branch pipe 502 and has plenty of n-th of jet chimney valve 6.
Wherein, n 2-10 are preferably 3-8.
Preferably, combustion gas injection tube 304 is blown casing 306 for combustion gas more than 2 sections or 2 sections.Combustion gas is blown casing 306
Using the structure of telescopic tube.
Each section of preferably combustion gas injection casing 306 is equipped with (multiple) combustion gas injection hole 305.
Preferably, combustion gas injection manifold 301 is equipped with the combustion gas of 1-10 roots and is blown branch pipe 302, is preferably 2-8 root gas injections
Blow branch pipe 302.
In the present invention, which further includes control system 7.Control system 7 is connected with time set 4 and controls steam pipe
Road valve 6.
Outer (straight) footpath with the combustion gas injection tube 304 of combustion gas injection hole 305 or combustion gas injection casing 306 is usually 30-
200mm, preferably 35-190mm, preferably 40-170mm, preferably 50-150mm, more preferable 80-110mm, more preferable 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 preferable 45-70mm, more preferable 50 or 60mm.
The distance between combustion gas injection tube 304 or combustion gas injection casing 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 preferable 50 or 60 or 70 or 80mm.
Second of embodiment according to the present invention provides 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, preset time node t1, the beginning timing of system timing device 4；
2) when device runs to t1When, start all jet chimney valves 6, steam is blown out from steam purge hole 505, steam
Into combustion gas injection hole 305, dredging combustion gas injection hole 305；
3) after jet chimney valve 6 is opened x minutes, all jet chimney valves 6 are closed；
4) after jet chimney valve 6 is closed y minutes, all jet chimney valves 6 are again started up；
It cycles successively, after jet chimney valve 6 is opened x minutes, closes all jet chimney valves 6；Jet chimney valve 6
After closing y minutes, all jet chimney valves 6 are again started up.
In the present invention, the t1The time point of the 0-15 days is run for device；Preferably 2-12 days, more preferably 6-10
My god.
In the present invention, the x is 2-20, is preferably 4-10, more preferably 5-8；The y is 10-60, is preferably 15-
40, more preferably 20-30.
The third embodiment according to the present invention provides another 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, preset time node t1, the beginning timing of system timing device 4；
2) when device runs to t1When, start first jet chimney valve 6；Steam is from first steam branch pipe 502
Steam purge hole 505 is blown out, and steam enters combustion gas injection hole 305, dredging combustion gas injection hole 305；
3) after first jet chimney valve 6 is opened a minutes, first jet chimney valve 6 is closed；
4) after first jet chimney valve 6 is closed b minutes, second jet chimney valve 6 is opened, steam is from second
The steam purge hole 505 of steam branch pipe 502 is blown out, and steam enters combustion gas injection hole 305, dredging combustion gas injection hole 305；
5) after second jet chimney valve 6 is opened a minutes, second jet chimney valve 6 is closed；
6) after repeating step 4) and 5), opening (n-1) a unlatching of jet chimney valve 6 successively a minutes, (n- is closed
1) a jet chimney valve 6；After (n-1) a jet chimney valve 6 is closed b minutes, n-th of jet chimney valve 6 is opened；
7) after n-th of jet chimney valve 6 is opened a minutes, n-th of closing jet chimney valve 6b minutes；Time set 4
Zero, return to step 2) it continues to run with；
Wherein：N is 2-10, is preferably 3-8.
In the present invention, the t1The time point of the 0-15 days is run for device；Preferably 2-12 days, more preferably 6-10
My god.
In the present invention, a is 2-20, is preferably 4-10, more preferably 5-8；The b is 1-10, is preferably 2-8,
More preferably 3-5.
Embodiment 1
As shown in Figs. 1-5, a kind of combustion gas blowing device, the device include：
Sintering pallet 1；
Seal closure 2；
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, sintering pallet 1 is located in seal closure 2, and combustion gas injection manifold 301 is arranged on the outside of seal closure 2, gas injection
Blowpipe row 303 is arranged on the top of sintering pallet 1, and combustion gas injection tube row 303 is located in seal closure 2, combustion gas injection branch
302 one end of pipe connection combustion gas injection manifold 301 connects combustion gas injection tube row 303 with the other end, and combustion gas injection tube row 303 includes more
Root combustion gas injection tube 304, combustion gas injection tube 304 are equipped with combustion gas injection hole 305；
Steam blowing equipment 5, steam blowing equipment 5 include 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, and 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, and steam blowing pipe row 503 includes more steam blowing pipes 504,
Steam blowing pipe 504 is equipped with steam purge hole 505；
Steam branch pipe 502 is equipped with jet chimney valve 6；
Time set 4.
Combustion gas is blown manifold 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 be blown 2 combustion gas injection holes 305 of combustion gas injection tube 304 above Ying Yu
Sweep to 2 combustion gas injection holes 305).
Main steam range 501 is equipped with 8 steam branch pipes 502, and a jet chimney valve is set on each steam branch pipe 502
6, it sets on n-th steam branch pipe 502 and has plenty of n-th of jet chimney valve 6；N is 8.
Combustion gas injection tube 304 is blown casing 306 for combustion gas more than 2 sections or 2 sections, and combustion gas injection casing 306 is using flexible
The structure of formula casing；Each section of combustion gas injection casing 306 is equipped with combustion gas injection hole 305.
Combustion gas injection manifold 301 is equipped with 8 combustion gas and is blown branch pipe 302.
In the present invention, combustion gas blowing device further includes control system 7, and control system 7 is connected and controls with time set 4
Jet chimney valve 6.
Using the method for above-mentioned combustion gas blowing device, this method comprises the following steps：
1) whole device brings into operation, preset time node t1, the beginning timing of system timing device 4；
2) when device runs to t1When, start all jet chimney valves 6, steam is blown out from steam purge hole 505, steam
Into combustion gas injection hole 305, dredging combustion gas injection hole 305；
3) after jet chimney valve 6 is opened x minutes, all jet chimney valves 6 are closed；
4) after jet chimney valve 6 is closed y minutes, all jet chimney valves 6 are again started up；
It cycles successively, after jet chimney valve 6 is opened x minutes, closes all jet chimney valves 6；Jet chimney valve 6
After closing y minutes, all jet chimney valves 6 are again started up.
In the above method, the t1It is run the 10th day for device.
In the above method, the x is 8；The y is 30.
In the present embodiment, carry out steam soaking, the blocking of combustion gas injection hole can be by effectively pre- due to timing cycles
It is anti-, therefore there is no situation of the local location without gas, the more gas of local location, so as to effectively prevent leading because combustion gas injection is uneven
The product quality of cause declines, because local location combustion gas excessively causes the situation hair for reaching explosion ratio lower limit initiation security incident
It is raw.
Embodiment 2
As shown in Figure 1, Figure 2, shown in Fig. 4, Fig. 6, 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 include combustion gas injection manifold 301, combustion gas injection branch pipe 302, gas injection
Blowpipe row 303, sintering pallet 1 is located in seal closure 2, and combustion gas injection manifold 301 is arranged on the outside of seal closure 2, gas injection
Blowpipe row 303 is arranged on the top of sintering pallet 1, and combustion gas injection tube row 303 is located in seal closure 2, combustion gas injection branch
302 one end of pipe connection combustion gas injection manifold 301 connects combustion gas injection tube row 303 with the other end, and combustion gas injection tube row 303 includes more
Root combustion gas injection tube 304, combustion gas injection tube 304 are equipped with combustion gas injection hole 305；
Steam blowing equipment 5, steam blowing equipment 5 include 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, and 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, and steam blowing pipe row 503 includes more steam blowing pipes 504,
Steam blowing pipe 504 is equipped with steam purge hole 505；
Steam branch pipe 502 is equipped with jet chimney valve 6；
Time set 4.
Combustion gas is blown manifold 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).
Main steam range 501 is equipped with 3 steam branch pipes 502, and a jet chimney valve is set on each steam branch pipe 502
6, it sets on n-th steam branch pipe 502 and has plenty of n-th of jet chimney valve 6；N is 3.
Combustion gas injection manifold 301 is equipped with 3 combustion gas and is blown branch pipe 302.
Combustion gas blowing device further includes control system 7, and control system 7 is connected with time set 4 and controls jet chimney valve
Door 6.
Using a kind of above-mentioned method of combustion gas blowing device, this method comprises the following steps：
1) whole device brings into operation, preset time node t1, the beginning timing of system timing device 4；
2) when device runs to t1When, start first jet chimney valve 6；Steam is from first steam branch pipe 502
Steam purge hole 505 is blown out, and steam enters combustion gas injection hole 305, dredging combustion gas injection hole 305；
3) after first jet chimney valve 6 is opened a minutes, first jet chimney valve 6 is closed；
4) after first jet chimney valve 6 is closed b minutes, second jet chimney valve 6 is opened, steam is from second
The steam purge hole 505 of steam branch pipe 502 is blown out, and steam enters combustion gas injection hole 305, dredging combustion gas injection hole 305；
5) after second jet chimney valve 6 is opened a minutes, second jet chimney valve 6 is closed；
6) step 4 and 5 is repeated, after (n-1)th jet chimney valve 6 of unlatching is opened a minutes successively, closes (n-1)th steaming
Vapour pipeline valve 6；After (n-1)th jet chimney valve 6 is closed b minutes, n-th of jet chimney valve 6 is opened；
7) after n-th of jet chimney valve 6 is opened a minutes, n-th of closing jet chimney valve 6b minutes；Time set 4
Zero, return to step 2 continue to run with；
Wherein：N is 3.
In the above method, the t1For 6 days.
In the above method, a is 5；The b is 3.
In the present embodiment, carry out steam soaking, the blocking of combustion gas injection hole can be by effectively pre- due to timing cycles
It is anti-, therefore there is no situation of the local location without gas, the more gas of local location, so as to effectively prevent leading because combustion gas injection is uneven
The product quality of cause declines, because local location combustion gas excessively causes the situation hair for reaching explosion ratio lower limit initiation security incident
It is raw.
Claims (10)
1. a kind of combustion gas blowing device of sequential type, the device include：
Sintering pallet (1)；
Seal closure (2)；
Combustion gas blowing device (3), combustion gas blowing device (3) include combustion gas injection manifold (301), combustion gas injection branch pipe (302), combustion
Gas blowout blowpipe arranges (303), and sintering pallet (1) is located in seal closure (2), and combustion gas injection manifold (301) is arranged on seal closure (2)
Outside, combustion gas injection tube row (303) is arranged on the top of sintering pallet (1), and combustion gas injection tube row (303) be located at it is close
In sealing cover (2), combustion gas injection branch pipe (302) one end connection combustion gas injection manifold (301) connects combustion gas injection tube row with the other end
(303), combustion gas injection tube row (303) includes more combustion gas injection tubes (304), and combustion gas injection tube (304) is blown equipped with combustion gas
Hole (305)；
Steam blowing equipment (5), steam blowing equipment (5) include main steam range (501), steam branch pipe (502), steam blowing pipe
It arranges (503), main steam range (501) is arranged on the outside of seal closure (2), and steam blowing pipe row (503) is arranged on sintering pallet
(1) top, and steam blowing pipe row (503) is arranged between sintering pallet (1) and combustion gas injection tube row (303), is steamed
One end connection main steam range (501) of vapour branch pipe (502) connects steam blowing pipe row (503), steam blowing pipe row with the other end
(503) more steam blowing pipes (504) are included, steam blowing pipe (504) is equipped with steam purge hole (505)；
Steam branch pipe (502) is equipped with jet chimney valve (6)；With
Time set (4).
2. combustion gas blowing device according to claim 1, 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 manifold (301) and main steam range (501) are separately positioned on the both sides of sintering pallet (1).
3. combustion gas blowing device according to claim 1 or 2, it is characterised in that：Each combustion gas injection tube (304) is just
Lower section is equipped with a steam blowing pipe (504)；Preferably, the upper steam purge hole (505) of steam blowing pipe (504) is right
One or more combustion gas injection holes (305) of combustion gas injection tube (304) above Ying Yu；It is further preferred that combustion gas injection tube (304)
Direction under the quantity of combustion gas injection hole (305) and the court of steam blowing pipe (504) immediately below combustion gas injection tube (304)
The quantity of upward steam purge hole (505) is equal or is substantially identical and each combustion gas injection hole (305) and lower section phase
A steam purge hole (505) is answered to be in alignment with each other, and (steam that i.e. a steam purge hole (505) is ejected can be purged to described
A corresponding combustion gas injection hole (305)).
4. combustion gas blowing device according to any one of claim 1-3, it is characterised in that：Main steam range is set on (501)
There is n roots steam branch pipe (502), a jet chimney valve (6), n-th steam branch pipe are set on each steam branch pipe (502)
(502) set on and have plenty of n-th of jet chimney valve (6)；Wherein, n 2-10 are preferably 3-8.
5. the combustion gas blowing device according to any one of claim 1-4, it is characterised in that：Combustion gas injection tube (304) is 2
Combustion gas injection casing (306) more than section or 2 sections, combustion gas injection casing (306) use the structure of telescopic tube；Preferably
Each section of combustion gas injection casing (306) is equipped with combustion gas injection hole (305)；And/or
Combustion gas injection manifold (301) is equipped with 1-10 roots combustion gas injection branch pipe (302), is preferably 2-8 roots combustion gas injection branch pipe
(302)。
6. the combustion gas blowing device according to any one of claim 1-5, it is characterised in that：The device further includes control system
It unites (7), control system (7) is connected with time set (4) and controls jet chimney valve (6).
7. a kind of a kind of combustion gas injection of combustion gas blowing device any one of combustion gas blowing method or usage right requirement 1-6
Method, this method comprise the following steps：
1) whole device brings into operation, preset time node t1, system timing device (4) beginning timing；
2) when device runs to t1When, start all jet chimney valves (6), steam is blown out from steam purge hole (505), steam
Into combustion gas injection hole (305), dredging combustion gas injection hole (305)；
3) after jet chimney valve (6) is opened x minutes, all jet chimney valves (6) are closed；
4) after jet chimney valve (6) is closed y minutes, all jet chimney valves (6) are again started up；
It cycles successively, after jet chimney valve (6) is opened x minutes, closes all jet chimney valves (6)；Jet chimney valve
(6) after closing y minutes, all jet chimney valves (6) are again started up.
8. according to the method described in claim 7, it is characterized in that：The t1The time point of the 0-15 days is run for device；It is preferred that
For 2-12 days, more preferably 6-10 days；And/or
The x is 2-20, is preferably 4-10, more preferably 5-8；The y is 10-60, is preferably 15-40, more preferably 20-
30。
9. a kind of a kind of combustion gas injection of combustion gas blowing device any one of combustion gas blowing method or usage right requirement 1-6
Method, this method comprise the following steps：
1) whole device brings into operation, preset time node t1, system timing device (4) beginning timing；
2) when device runs to t1When, start first jet chimney valve (6)；Steam is from the steaming of first steam branch pipe (502)
Vapour purge hole (505) is blown out, and steam enters combustion gas injection hole (305), dredging combustion gas injection hole (305)；
3) after first jet chimney valve (6) is opened a minutes, first jet chimney valve (6) is closed；
4) after first jet chimney valve (6) is closed b minutes, second jet chimney valve (6) is opened, steam is from second
Steam purge hole (505) blowout of steam branch pipe (502), steam enter combustion gas injection hole (305), dredge combustion gas injection hole
(305)；
5) after second jet chimney valve (6) is opened a minutes, second jet chimney valve (6) is closed；
6) after repeating step 4) and 5), opening (n-1) a jet chimney valve (6) unlatching successively a minutes, close (n-1)
A jet chimney valve (6)；After (n-1) a jet chimney valve (6) is closed b minutes, n-th of jet chimney valve is opened
(6)；
7) after n-th of jet chimney valve (6) is opened a minutes, n-th of closing jet chimney valve (6) b minutes；Time set
(4) it is zeroed, return to step 2) it continues to run with；
Wherein：N is 2-10, is preferably 3-8.
10. according to the method described in claim 9, it is characterized in that：The t1The time point of the 0-15 days is run for device；It is excellent
It elects as 2-12 days, more preferably 6-10 days；And/or
The a is 2-20, is preferably 4-10, more preferably 5-8；The b is 1-10, is preferably 2-8, more preferably 3-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710208071.4A CN108120289B (en) | 2017-03-31 | 2017-03-31 | Time sequence type gas injection device and gas injection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710208071.4A CN108120289B (en) | 2017-03-31 | 2017-03-31 | Time sequence type gas injection device and gas injection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108120289A true CN108120289A (en) | 2018-06-05 |
| CN108120289B CN108120289B (en) | 2023-10-03 |
Family
ID=62228065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710208071.4A Active CN108120289B (en) | 2017-03-31 | 2017-03-31 | Time sequence type gas injection device and gas injection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108120289B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113969344A (en) * | 2020-07-23 | 2022-01-25 | 中冶长天国际工程有限责任公司 | Proportioning method of gas-steam coupling injection process of sintering machine |
| CN115218670A (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 blowing gas and water vapor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201437540U (en) * | 2009-05-12 | 2010-04-14 | 中冶东方工程技术有限公司 | Blast furnace blowing coke oven gas system |
| CN203303838U (en) * | 2013-06-09 | 2013-11-27 | 南京中电环保科技有限公司 | Catalyst ash removing device |
| CN203785450U (en) * | 2014-04-22 | 2014-08-20 | 中冶北方（大连）工程技术有限公司 | Steam blowing device for preventing excessive moistening in down-draft sintering |
| CN205119810U (en) * | 2015-08-21 | 2016-03-30 | 上海梅山钢铁股份有限公司 | Oxygen boosting jetting sintering device based on combustible gas assists sintering |
| CN205782910U (en) * | 2016-05-10 | 2016-12-07 | 中冶长天国际工程有限责任公司 | The multiple degrees of freedom formula blowing device of a kind of sintering and sintering equipment |
-
2017
- 2017-03-31 CN CN201710208071.4A patent/CN108120289B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201437540U (en) * | 2009-05-12 | 2010-04-14 | 中冶东方工程技术有限公司 | Blast furnace blowing coke oven gas system |
| CN203303838U (en) * | 2013-06-09 | 2013-11-27 | 南京中电环保科技有限公司 | Catalyst ash removing device |
| CN203785450U (en) * | 2014-04-22 | 2014-08-20 | 中冶北方（大连）工程技术有限公司 | Steam blowing device for preventing excessive moistening in down-draft sintering |
| CN205119810U (en) * | 2015-08-21 | 2016-03-30 | 上海梅山钢铁股份有限公司 | Oxygen boosting jetting sintering device based on combustible gas assists sintering |
| CN205782910U (en) * | 2016-05-10 | 2016-12-07 | 中冶长天国际工程有限责任公司 | The multiple degrees of freedom formula blowing device of a kind of sintering and sintering equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113969344A (en) * | 2020-07-23 | 2022-01-25 | 中冶长天国际工程有限责任公司 | Proportioning method of gas-steam coupling injection process of sintering machine |
| CN115218670A (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 blowing gas and water vapor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108120289B (en) | 2023-10-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102378803B (en) | With the coker of exhaust gas recirculation | |
| CN108120289A (en) | A kind of combustion gas blowing device of sequential type and combustion gas blowing method | |
| CN108120311A (en) | A kind of diagnosis of sintering machine charge level and adaptive controller and its method based on video identification | |
| CN207066128U (en) | A kind of combustion gas blowing device of sequential type | |
| CN206891178U (en) | A kind of combustion gas blowing device | |
| CN108120290A (en) | A kind of combustion gas blowing device and combustion gas blowing method | |
| CN106399625A (en) | High-temperature and high-pressure gas sealing device for steel ladle refining furnace and application method of high-temperature and high-pressure gas sealing device | |
| CN108278896A (en) | A kind of sintering machine combustion gas blowing device and blowing method | |
| CN108088252B (en) | Accurate control device and control method for gas concentration for injection-assisted sintering method | |
| CN203174123U (en) | Coke oven gas blowing system of blast furnace | |
| CN108120298A (en) | A kind of combustion gas blowing device and combustion gas blowing method | |
| CN207113598U (en) | Can automatic adjusument injection starting point sintering machine blowing device | |
| CN207850062U (en) | A kind of self adaptive control type combustion gas blowing device based on charge level video identification | |
| CN207845724U (en) | A kind of combustion gas blowing device | |
| CN107782145B (en) | A kind of blowing assisted sintering method multidirectional pipe row's formula blowing device and its blowing method | |
| CN208495252U (en) | A kind of carbon black fuel oil gun rapid purging device | |
| CN111996325B (en) | Method and tool for quickly cleaning burner of hot blast stove | |
| US4061544A (en) | Apparatus for providing waste gas recirculation in coke oven batteries | |
| CN209101808U (en) | A kind of sintering machine combustion gas blowing device | |
| CN108118145A (en) | A kind of combustion gas blowing device and its combustion gas blowing method | |
| CN107013896A (en) | For the steam supply system in production | |
| CN208831812U (en) | A kind of three position four-way directional control valve of included purging port | |
| CN209706554U (en) | A kind of energy saving and environment friendly Multi-functional smelting furnace | |
| CN108195200B (en) | External combustion preventing type fuel gas injection device and fuel gas injection method thereof | |
| CN108120293B (en) | Auxiliary sintering blowing device with adjustable gas concentration and control method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |