CN109628732A - A kind of operating method prevented sintering machine and shut down knot bulk - Google Patents
A kind of operating method prevented sintering machine and shut down knot bulk Download PDFInfo
- Publication number
- CN109628732A CN109628732A CN201910028098.4A CN201910028098A CN109628732A CN 109628732 A CN109628732 A CN 109628732A CN 201910028098 A CN201910028098 A CN 201910028098A CN 109628732 A CN109628732 A CN 109628732A
- Authority
- CN
- China
- Prior art keywords
- sintering machine
- 10min
- reduces
- stopping
- sintering
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention provides a kind of operating method prevented sintering machine and shut down knot bulk, 1) this method includes, stops fuel ratio control before sintering machine；2) conveying capacity controls before, stopping sintering machine；3), cloth control before stopping sintering machine；4), technology stops pumping and Boiler pressure control step.The method of the present invention can avoid causing sinter knot bulk due to stopping taking out when sintering machine is shut down, and then cause the equipment breakdowns such as stifled bucket to follow-up equipment, improve the stability and continuity of sintering production, reduce sintering production has bad luck cost etc..
Description
Technical field
The present invention relates to metallurgical technology field more particularly to a kind of operating methods prevented sintering machine and shut down knot bulk.
Background technique
In order to improve the stability of large-type sinterer production, the startup-shutdown time is compressed as possible, improves sintering machine
Usage factor, stabilized sinter quality reduces influence to blast furnace, and sintering machine often takes strip to stop in planned shut-down
The mode of machine, i.e. material on sintering pallet can directly restore air-supply production without sky after feeding.But in start process easily
There is the accident of big, the stifled bucket of sintering nugget.Sinter bulk blocked up belt conveyor lower hopper in order to prevent in the past, and booting is taken to expect
The mode had bad luck is landed to avoid impacting follow-up equipment.
The quality of sintering process Minerals crystallization, with sintering temperature level, high temperature hold time, cooling velocity is related.Temperature
It is suitable for that high temperature hold time is long, and it is complete that cooling velocity is conducive to crystallizable mineral slowly that degree is horizontal.And in sintering machine strip stopping process
In, break normal rhythm of production, after especially shutting down, has started to stop taking out, sintering end point moves from back to front, and exhaust gas temperature is fast
Speed rises, and in order to guarantee exhaust gas temperature within the allowable range, reduces main exhausting door, sinter is in relatively high temperature on trolley
Range, not cooling rapidly, the general control that stops finding time did not ensured that sinter was all cooling on trolley at 30-40 minutes；
Secondly, being in blowing-out dead ship condition for a long time after sintering machine is due to stopping pumping, sinter high temperature hold time extends, sintering process
Mineral liquid phase generates and the process of crystallization is more abundant, and it is big and hard to form sintered ore materials block.
In view of above, the present invention provides a kind of operating method prevented sintering machine and shut down knot bulk, by stopping process
The adjustment of operating parameter, thus it is possible to vary the generation of liquid phase and crystallization condition effectively prevent sintering machine and generate in stopping process greatly
Block etc..
Summary of the invention
The present invention provides a kind of operating method prevented sintering machine and shut down knot bulk, passes through operating parameter in stopping process
Adjustment, thus it is possible to vary the generation of liquid phase and crystallization condition effectively prevent sintering machine and generate bulk etc. in stopping process.
In order to solve the above technical problems, the present invention provides a kind of operating method prevented sintering machine and shut down knot bulk, it
The following steps are included:
1) fuel ratio controls before, stopping sintering machine
After the plan stopping sintering machine time determines, 30min starts the proportion that staged reduces sintering machine fuel in advance, is divided into three
Stage carries out, and each stage is that 10min: the first 10min fuel ratio reduces 0.3-0.4%, and second 10min is basic herein
Fuel ratio reduces 0.3-0.4% on this basis by upper fuel ratio 0.3-0.4%, third 10min, and amounting to reduces fuel ratio
0.9-1.2%；
2) conveying capacity controls before, stopping sintering machine
It is shut down to cooperate, thickness of feed layer is gradually thinned on sintering pallet, divides three phases to reduce conveying capacity, in proportioning room
When starting to subtract coal, first 10min conveying capacity reduces 8-12%, and second 10min reduces 8-12%, third in original basis again
10min reduces 8-12% again in original basis, and amounting to reduces conveying capacity 24-36%, until proportioning room all stops to expect；
3), cloth control before stopping sintering machine
When proportioning room starts to subtract coal, first 10min, sintering machine distributing thickness is presented form of successively decreasing and is gradually reduced to by 800mm
700mm；Second 10min, sintering machine distributing thickness gradually reduce to 600mm by 700mm；Third 10min, fabric thickness is gradually
550mm is reduced to by 600mm, when head feed bin is not fed, sintering machine material thickness is reduced into 500mm；After head feed bin band is empty, last
Block strip trolley stops sintering machine after entering the igniting of igniter 1# bellows position；
4), technology stops pumping and Boiler pressure control
Head bellows butterfly valve standard-sized sheet, and tail bellows butterfly valve is gradually closed as terminal is mobile, stop general pipeline exhaust gas temperature control before taking out
System is at 130 DEG C hereinafter, exhaust gas temperature control is no more than 200 DEG C during stopping taking out；Stop take out start when 2 cold blast sliding valves are fully open,
General pipeline negative pressure is maintained at 8-9Kpa in the process, and throttle opening is stepped down to the 50% of normal aperture depending on negative pressure condition；Sintering end point
Position reaches 5-6 bellows, and temperature reaches 170-180 DEG C of end and stops taking out, and closes air door, and main take out is pressed program stopped sintering machine, stopped
Control find time in 30-40min.
Further, fuel ratio controls before step 1) of the present invention stops sintering machine
After the plan stopping sintering machine time determines, 30min starts the proportion that staged reduces sintering machine fuel in advance, is divided into three
Stage carries out, and each stage is that 10min: the first 10min fuel ratio reduces by 0.35%, and second 10min fires on this basis
Material proportion 0.35%, fuel ratio reduces by 0.35% to third 10min on this basis, and amounting to reduces fuel ratio 1.05%.
Further, conveying capacity controls before step 2 of the present invention stops sintering machine
It is shut down to cooperate, thickness of feed layer is gradually thinned on sintering pallet, divides three phases to reduce conveying capacity, in proportioning room
When starting to subtract coal, first 10min conveying capacity reduces by 10%, and second 10min reduces by 10% in original basis again, third 10min
Reduce by 10% again in original basis, amounting to reduces conveying capacity 30%, until proportioning room all stops to expect.
Further, after step 3) of the present invention stops sintering machine, the time is no more than 4h 2 burners of reservation and lights, when
Between more than 4h by program close fire.
Further, step 4) head bellows butterfly valve standard-sized sheet of the present invention, and as tail is gradually closed in terminal movement
Bellows butterfly valve stops general pipeline exhaust gas temperature control before taking out and controls hereinafter, stopping exhaust gas temperature during pumping no more than 200 DEG C at 130 DEG C；Stop
Pumping is fully open by 2 cold blast sliding valves when starting, and general pipeline negative pressure is maintained at 8.5Kpa in the process, and throttle opening regards negative pressure condition gradually
It is reduced to the 50% of normal aperture；Sintering end point position reaches 5-6 bellows, and temperature reaches 175 DEG C of end and stops taking out, and closes air door,
Main take out presses program stopped sintering machine, and the control that stops finding time is in 35min.
Further, when step 4) of the present invention stops taking out, air quantity is controlled by adjusting throttle opening, reduces exhaust gas
The raising of temperature, it is ensured that exhaust gas temperature is no more than 200 DEG C.
Beneficial effects of the present invention: the present invention provides a kind of operating method prevented sintering machine and shut down knot bulk, this method
Conveying capacity is reduced using fuel ratio is reduced stage by stage by the adjustment to the operations parameter in sintering machine docking process,
Cloth thickness of feed layer is gradually reduced, the liquid phase being sintered during stopping taking out and crystallization process is controlled and avoids bulk from generating to reach, base
The equipment breakdown of the stifled bucket of finished product system bulk and the stifled bucket of blast furnace belt is prevented in sheet, sinter can be directly entered high furnace charge
Storehouse reduces sinter landing and has bad luck link, substantially increases the steady complete property of production and continuity, can not only reduce sinter and exist
Crushing phenomenon during having bad luck improves the quality in kind of sinter；And cost of the sinter when having bad luck can be reduced and disappeared
Consumption, the tissue effect of stable sintering production, improves production efficiency, has preferable economic benefit and social benefit, is suitable for big
Scale promotes and applies.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
It is a kind of prevent sintering machine shut down knot bulk operating method, it the following steps are included:
1) fuel ratio controls before, stopping sintering machine
After the plan stopping sintering machine time determines, 30min starts the proportion that staged reduces sintering machine fuel in advance, is divided into three
Stage carries out, and each stage is that 10min: the first 10min fuel ratio reduces 0.3-0.4%, and second 10min is basic herein
Fuel ratio reduces 0.3-0.4% on this basis by upper fuel ratio 0.3-0.4%, third 10min, and amounting to reduces fuel ratio
0.9-1.2%；
2) conveying capacity controls before, stopping sintering machine
It is shut down to cooperate, thickness of feed layer is gradually thinned on sintering pallet, divides three phases to reduce conveying capacity, in proportioning room
When starting to subtract coal, first 10min conveying capacity reduces 8-12%, and second 10min reduces 8-12%, third in original basis again
10min reduces 8-12% again in original basis, and amounting to reduces conveying capacity 24-36%, until proportioning room all stops to expect；
3), cloth control before stopping sintering machine
When proportioning room starts to subtract coal, first 10min, sintering machine distributing thickness is presented form of successively decreasing and is gradually reduced to by 800mm
700mm；Second 10min, sintering machine distributing thickness gradually reduce to 600mm by 700mm；Third 10min, fabric thickness is gradually
550mm is reduced to by 600mm, when head feed bin is not fed, sintering machine material thickness is reduced into 500mm；After head feed bin band is empty, last
Block strip trolley stops sintering machine after entering the igniting of igniter 1# bellows position；
4), technology stops pumping and Boiler pressure control
Head bellows butterfly valve standard-sized sheet, and tail bellows butterfly valve is gradually closed as terminal is mobile, stop general pipeline exhaust gas temperature control before taking out
System is at 130 DEG C hereinafter, exhaust gas temperature control is no more than 200 DEG C during stopping taking out；Stop take out start when 2 cold blast sliding valves are fully open,
General pipeline negative pressure is maintained at 8-9Kpa in the process, and throttle opening is stepped down to the 50% of normal aperture depending on negative pressure condition；Sintering end point
Position reaches 5-6 bellows, and temperature reaches 170-180 DEG C of end and stops taking out, and closes air door, and main take out is pressed program stopped sintering machine, stopped
Control find time in 30-40min.
As priority scheme of the invention, fuel ratio is controlled before the step 1) of the present invention stops sintering machine
After the plan stopping sintering machine time determines, 30min starts the proportion that staged reduces sintering machine fuel in advance, is divided into three
Stage carries out, and each stage is that 10min: the first 10min fuel ratio reduces by 0.35%, and second 10min fires on this basis
Material proportion 0.35%, fuel ratio reduces by 0.35% to third 10min on this basis, and amounting to reduces fuel ratio 1.05%.
As priority scheme of the invention, conveying capacity is controlled before the step 2 of the present invention stops sintering machine
It is shut down to cooperate, thickness of feed layer is gradually thinned on sintering pallet, divides three phases to reduce conveying capacity, in proportioning room
When starting to subtract coal, first 10min conveying capacity reduces by 10%, and second 10min reduces by 10% in original basis again, third 10min
Reduce by 10% again in original basis, amounting to reduces conveying capacity 30%, until proportioning room all stops to expect.
As priority scheme of the invention, after the step 3) of the present invention stops sintering machine, the time protects no more than 4h
2 burners are stayed to light, the time is more than 4h by program pass fire.
As priority scheme of the invention, the step 4) head bellows butterfly valve standard-sized sheet of the present invention, and with terminal
It is mobile gradually to close tail bellows butterfly valve, stop general pipeline exhaust gas temperature before taking out and controls at 130 DEG C hereinafter, exhaust gas temperature control during stopping taking out
System is no more than 200 DEG C；Stop take out start when 2 cold blast sliding valves are fully open, general pipeline negative pressure is maintained at 8.5Kpa in the process, and air door is opened
Degree is stepped down to the 50% of normal aperture depending on negative pressure condition；Sintering end point position reaches 5-6 bellows, and temperature reaches 175 DEG C of knots
Beam stops taking out, and closes air door, and main take out presses program stopped sintering machine, and the control that stops finding time is in 35min.
As priority scheme of the invention, when the step 4) of the present invention stops taking out, controlled by adjusting throttle opening
Air quantity processed reduces the raising of exhaust gas temperature, it is ensured that exhaust gas temperature is no more than 200 DEG C.
With 400m2For sintering machine, shut down using the method for the present invention.
Its technological parameter and operating method are as follows:
Conveying capacity: 700t/h；Thickness of feed layer: 800mm；Bellows number: 22；
Sinter mixture proportion: blending ore 71%, fuel ratio 4%, quick lime 5% return mine 20%；
After being connected to halt instruction, start shutdown operation, first 10min, fuel ratio reduces 0.3% for the first time, and conveying capacity is reduced
70t/h, batch layer thickness of sintering machine reduce 100mm；Second 10min, fuel ratio subtract 0.3% again, and conveying capacity reduces 70t/h, burn
Knot machine thickness of feed layer reduces 100mm；Third 10min, fuel ratio subtract 0.4% again, and conveying capacity reduces 70t/h, the sintering machine bed of material
Thickness reduces 100mm；Stop expecting to proportioning room from shutdown operation is started, fuel ratio reduces 1% altogether, and conveying capacity reduces 210t/h, material
Thickness degree reduces 300mm.After head feed bin band is empty, last block strip trolley stops burning after entering the igniting of igniter 1# bellows position
Knot, beginning technology stop taking out, and stop general pipeline negative pressure during taking out and are maintained at 8Kpa or so, throttle opening is stepped down to depending on negative pressure condition
The 50% of normal aperture ensures that exhaust gas temperature is no more than 200 DEG C by adjusting throttle opening to control air quantity.Sintering end point position
5-6 bellows are reached, temperature reaches 175 DEG C of end and stops taking out, and the control that stops finding time is in 35min.Pass through behaviour above-mentioned in stopping process
Make the adjustment of parameter, thus it is possible to vary the generation of liquid phase and crystallization condition effectively prevent sintering machine and generate bulk in stopping process.
First 10min, second 10min, third 10min refer to the adjacent interval time operated twice in the present invention
It is 10 minutes, such as: operation for the first time carried out operating for second after ten minutes since 0 minute, carried out third time behaviour after twenty minutes
Make.
The present invention prevent sintering machine shut down the operating method of knot bulk by 3 sintering systems of certain steel mill implement 1 year with
It is preferable to carry out effect, carries out and limits the production in heating season especially for northern iron and steel enterprise, cause under sintering machine intermittence production model
It executes the operating method, in stopping process, has substantially prevented the equipment thing of the stifled bucket of finished product system bulk and the stifled bucket of blast furnace belt
Therefore sinter can be directly entered blast furnace hopper, reduce sinter landing and have bad luck link, substantially increase the steady complete property of production and
Continuity.
It finds by productive experiment, after the operating method of knot bulk is shut down in sintering machine prevention after the present invention, not only may be used
To reduce crushing phenomenon of sinter during having bad luck, the quality in kind of sinter is improved；And sinter can be reduced and existed
Cost consumption when having bad luck.
The above described is only a preferred embodiment of the present invention, being not that the invention has other forms of limitations, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
Imitate embodiment.But without departing from the technical solutions of the present invention, according to the technical essence of the invention to above embodiments institute
Any simple modification, equivalent variations and the remodeling made, still fall within the protection scope of technical solution of the present invention.
Claims (6)
1. it is a kind of prevent sintering machine shut down knot bulk operating method, it is characterised in that: it the following steps are included:
1) fuel ratio controls before, stopping sintering machine
After the plan stopping sintering machine time determines, 30min starts the proportion that staged reduces sintering machine fuel in advance, is divided into three
Stage carries out, and each stage is that 10min: the first 10min fuel ratio reduces 0.3-0.4%, and second 10min is basic herein
Fuel ratio reduces 0.3-0.4% on this basis by upper fuel ratio 0.3-0.4%, third 10min, and amounting to reduces fuel ratio
0.9-1.2%；
2) conveying capacity controls before, stopping sintering machine
It is shut down to cooperate, thickness of feed layer is gradually thinned on sintering pallet, divides three phases to reduce conveying capacity, in proportioning room
When starting to subtract coal, first 10min conveying capacity reduces 8-12%, and second 10min reduces 8-12%, third in original basis again
10min reduces 8-12% again in original basis, and amounting to reduces conveying capacity 24-36%, until proportioning room all stops to expect；
3), cloth control before stopping sintering machine
When proportioning room starts to subtract coal, first 10min, sintering machine distributing thickness is presented form of successively decreasing and is gradually reduced to by 800mm
700mm；Second 10min, sintering machine distributing thickness gradually reduce to 600mm by 700mm；Third 10min, fabric thickness is gradually
550mm is reduced to by 600mm, when head feed bin is not fed, sintering machine material thickness is reduced into 500mm；After head feed bin band is empty, last
Block strip trolley stops sintering machine after entering the igniting of igniter 1# bellows position；
4), technology stops pumping and Boiler pressure control
Head bellows butterfly valve standard-sized sheet, and tail bellows butterfly valve is gradually closed as terminal is mobile, stop general pipeline exhaust gas temperature control before taking out
System is at 130 DEG C hereinafter, exhaust gas temperature control is no more than 200 DEG C during stopping taking out；Stop take out start when 2 cold blast sliding valves are fully open,
General pipeline negative pressure is maintained at 8-9Kpa in the process, and throttle opening is stepped down to the 50% of normal aperture depending on negative pressure condition；Sintering end point
Position reaches 5-6 bellows, and temperature reaches 170-180 DEG C of end and stops taking out, and closes air door, and main take out is pressed program stopped sintering machine, stopped
Control find time in 30-40min.
2. a kind of operating method prevented sintering machine and shut down knot bulk as described in claim 1, it is characterised in that: the step
1) fuel ratio controls before stopping sintering machine
After the plan stopping sintering machine time determines, 30min starts the proportion that staged reduces sintering machine fuel in advance, is divided into three
Stage carries out, and each stage is that 10min: the first 10min fuel ratio reduces by 0.35%, and second 10min fires on this basis
Material proportion 0.35%, fuel ratio reduces by 0.35% to third 10min on this basis, and amounting to reduces fuel ratio 1.05%.
3. a kind of operating method prevented sintering machine and shut down knot bulk as described in claim 1, it is characterised in that: the step
2) conveying capacity controls before stopping sintering machine
It is shut down to cooperate, thickness of feed layer is gradually thinned on sintering pallet, divides three phases to reduce conveying capacity, in proportioning room
When starting to subtract coal, first 10min conveying capacity reduces by 10%, and second 10min reduces by 10% in original basis again, third 10min
Reduce by 10% again in original basis, amounting to reduces conveying capacity 30%, until proportioning room all stops to expect.
4. a kind of operating method prevented sintering machine and shut down knot bulk as described in claim 1, it is characterised in that: the step
3) after stopping sintering machine, the time is no more than 4h 2 burners of reservation and lights, and the time is more than 4h by program pass fire.
5. a kind of operating method prevented sintering machine and shut down knot bulk as described in claim 1, it is characterised in that: the step
4) head bellows butterfly valve standard-sized sheet, and tail bellows butterfly valve is gradually closed as terminal is mobile, stop general pipeline exhaust gas temperature control before taking out
At 130 DEG C hereinafter, exhaust gas temperature control is no more than 200 DEG C during stopping taking out；Stop taking out 2 cold blast sliding valves are fully open, mistake when starting
Cheng Zhong general pipeline's negative pressure is maintained at 8.5Kpa, and throttle opening is stepped down to the 50% of normal aperture depending on negative pressure condition；Sintering end point position
It sets and reaches 5-6 bellows, temperature reaches 175 DEG C of end and stops taking out, and closes air door, and main take out presses program stopped sintering machine, stop finding time
Control is in 35min.
6. a kind of operating method prevented sintering machine and shut down knot bulk as claimed in claim 5, it is characterised in that:
When the step 4) stops taking out, air quantity is controlled by adjusting throttle opening, reduces the raising of exhaust gas temperature, it is ensured that exhaust gas
Temperature is no more than 200 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910028098.4A CN109628732B (en) | 2019-01-11 | 2019-01-11 | Operation method for preventing sintering machine from being stopped and agglomerated |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910028098.4A CN109628732B (en) | 2019-01-11 | 2019-01-11 | Operation method for preventing sintering machine from being stopped and agglomerated |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109628732A true CN109628732A (en) | 2019-04-16 |
| CN109628732B CN109628732B (en) | 2020-09-11 |
Family
ID=66060642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910028098.4A Active CN109628732B (en) | 2019-01-11 | 2019-01-11 | Operation method for preventing sintering machine from being stopped and agglomerated |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109628732B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114317949A (en) * | 2021-12-21 | 2022-04-12 | 马鞍山钢铁股份有限公司 | Method for strengthening sintering of upper material layer |
| CN114993053A (en) * | 2022-04-11 | 2022-09-02 | 重庆钢铁股份有限公司 | Sintering shutdown operation method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH085258A (en) * | 1994-06-15 | 1996-01-12 | Sumitomo Metal Ind Ltd | Method of controlling exhaust gas at stop of operation of sintering machine |
| JPH08246072A (en) * | 1995-03-10 | 1996-09-24 | Nippon Steel Corp | Method for controlling start-up and stoppage of sintering machine |
| JP2012132589A (en) * | 2010-12-20 | 2012-07-12 | Kobe Steel Ltd | Control method of exhaust gas at the time of stop of sintering device |
| CN106382135A (en) * | 2016-08-31 | 2017-02-08 | 西安陕鼓动力股份有限公司 | Safety interlocking shutdown system and methods of sintering waste heat recovery and sintering fan combined unit |
| CN107782146A (en) * | 2016-08-31 | 2018-03-09 | 鞍钢股份有限公司 | A kind of method for changing sintering pallet |
-
2019
- 2019-01-11 CN CN201910028098.4A patent/CN109628732B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH085258A (en) * | 1994-06-15 | 1996-01-12 | Sumitomo Metal Ind Ltd | Method of controlling exhaust gas at stop of operation of sintering machine |
| JPH08246072A (en) * | 1995-03-10 | 1996-09-24 | Nippon Steel Corp | Method for controlling start-up and stoppage of sintering machine |
| JP2012132589A (en) * | 2010-12-20 | 2012-07-12 | Kobe Steel Ltd | Control method of exhaust gas at the time of stop of sintering device |
| CN106382135A (en) * | 2016-08-31 | 2017-02-08 | 西安陕鼓动力股份有限公司 | Safety interlocking shutdown system and methods of sintering waste heat recovery and sintering fan combined unit |
| CN107782146A (en) * | 2016-08-31 | 2018-03-09 | 鞍钢股份有限公司 | A kind of method for changing sintering pallet |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114317949A (en) * | 2021-12-21 | 2022-04-12 | 马鞍山钢铁股份有限公司 | Method for strengthening sintering of upper material layer |
| CN114317949B (en) * | 2021-12-21 | 2023-10-27 | 马鞍山钢铁股份有限公司 | Reinforced sintering method for upper material layer |
| CN114993053A (en) * | 2022-04-11 | 2022-09-02 | 重庆钢铁股份有限公司 | Sintering shutdown operation method |
| CN114993053B (en) * | 2022-04-11 | 2024-04-30 | 重庆钢铁股份有限公司 | Sintering shutdown operation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109628732B (en) | 2020-09-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111322879B (en) | Method for quickly igniting and baking furnace in Maerz kiln | |
| CN109628732A (en) | A kind of operating method prevented sintering machine and shut down knot bulk | |
| CN111349730B (en) | Method for controlling hydrogen content in coal gas in blowing-out process of recovering coal gas in blast furnace material dropping line | |
| CN101293744B (en) | Impulse composite combustion method in breeze and natural gas mix combustion | |
| CN102022915A (en) | Power control method and power control system for sintering machine | |
| CN107868678A (en) | A kind of blending method and system for bed pulverized coal gasification technology | |
| CN1076636C (en) | Tail gas recirculation system for coal injection and pulverization of blast furnace and its control method | |
| CN103114199B (en) | Starting-up production method of sintering machine | |
| CN112941258B (en) | Method for controlling oxygen content in process of lowering stock line of blast furnace recovered coal gas | |
| CN107314395A (en) | The method of fast cutback under unit style generating set emergency situation | |
| CN105330178B (en) | A kind of method that production active lime is transformed using cement producing line | |
| CN106379866B (en) | A kind of fluidized bed furnace for pyrite-based sulphuric acid ignition method of energy-saving and environmental protection | |
| US4270466A (en) | Method and apparatus for rendering an ignitable fuel-oxygen mixture inert | |
| CN202393218U (en) | Environment-friendly, efficient and energy-saving type sintering and cooling integrated annular sintering machine | |
| CN113551252A (en) | Automatic coal-breaking processing device for coal feeder | |
| CN213021014U (en) | Safety control device for preventing gas burning kiln gas surrounding pipe from burning and exploding | |
| CN109433398B (en) | Method for saving oil during starting of boiler residual powder in intermediate storage type powder making system | |
| CN113154430A (en) | Supercritical unit fan mill control system and method | |
| CN106048115A (en) | Method for furnace top ignition after damping-down of blast furnace | |
| CN108253447B (en) | Biomass coupling pulverized coal combustion system and control method thereof | |
| CN102840585B (en) | Three-driving inverse push type incinerator grate and feeding device control method, device and system | |
| CN205940120U (en) | Coal -fired feed system of tunnel cave | |
| CN106370008A (en) | Energy-saving dynamic regulating and control method for oxygen-rich sintering | |
| CN114993053B (en) | Sintering shutdown operation method | |
| CN104279576A (en) | Pure-oxygen combustion system |
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 |