CN101665703B - Method for continuous coke discharging operation of coke dry quenching system - Google Patents
Method for continuous coke discharging operation of coke dry quenching system Download PDFInfo
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- CN101665703B CN101665703B CN2008100130423A CN200810013042A CN101665703B CN 101665703 B CN101665703 B CN 101665703B CN 2008100130423 A CN2008100130423 A CN 2008100130423A CN 200810013042 A CN200810013042 A CN 200810013042A CN 101665703 B CN101665703 B CN 101665703B
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- dry quenching
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- quenching
- coke discharging
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- 239000000571 coke Substances 0.000 title claims abstract description 101
- 238000010791 quenching Methods 0.000 title claims abstract description 56
- 230000000171 quenching effect Effects 0.000 title claims abstract description 56
- 238000007599 discharging Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 claims abstract description 21
- 238000012423 maintenance Methods 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 11
- 238000010924 continuous production Methods 0.000 claims abstract description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 239000003610 charcoal Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000003442 weekly effect Effects 0.000 claims description 3
- 239000011449 brick Substances 0.000 abstract description 7
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000007306 turnover Effects 0.000 description 4
- 230000003203 everyday effect Effects 0.000 description 3
- 238000004939 coking Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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- Coke Industry (AREA)
Abstract
The invention relates to a method for continuous coke discharging operation of a dry quenching system, which combines pre-stored coke with balanced production, adjusts the revolution number of a dry quenching circulating fan, the opening degree of a fan baffle plate and the amplitude of a vibration feeder by a computer according to the coke discharging amount and the daily maintenance period of a coke oven, controls the coke discharging speed of the dry quenching and the material level of a dry quenching furnace and realizes the balanced continuous production of the dry quenching system. The production stability of the dry quenching system is realized, the frequent change of a temperature field and a pressure field of a chute area is reduced, the service life of the bracket brick is prolonged, and the annual repair time and the accident handling cost of the dry quenching are reduced. Meanwhile, a sufficient steam source is provided for continuous and stable production of the rear steam power plant. According to incomplete statistics, the coke dry quenching overhaul time caused by replacement of bracket bricks can be reduced by 30 days every year.
Description
Technical field
The invention belongs to coking dry coke quenching field, being specifically related to a kind of dry quenching system that guarantees can carry out the method that coke discharging is produced by continous-stable.
Background technology
The production of coke-oven plant's dry quenching system directly receives the especially coke oven restriction of overhauling number of times every day of coke oven coke discharging amount.According to the needs of maintenance of the equipment, coke oven in process of production, every day all must blowing out 3-4 time, each furnace outage time be carried out in 59 minutes equipment stop for a short time overhaul, thereby the production of dry quenching system also can't be carried out continuously, be interrupted the coke discharging state and be in.When coke oven was produced, dry quenching system was in the full production state; The coke oven stop production to overhaul, then dry quenching system also can only stop coke discharging production.In the continuous alternation procedure that stops production in the time of owing to being in all the time when this and at full capacity; Cause dry quenching system interior temperature field, pressure field and various correlation parameter among constantly changing; And adjustment is frequent; Thereby greatly influenced the stability of dry quenching system operation, especially concerning the power generation system of follow-up use steam-electric power, frequent start-stop stops the influence of turbo-generator bigger.Simultaneously, because this dry coke quenching operated system fluctuation, cause and put out the damage in masonry life-span of furnace interior refractory materials dried, particularly particularly serious to the influence of chute district bracket brick.Domestic Duo Jia coke-oven plant dry coke quenching the problem that chute district bracket brick big area comes off all occurred after going into operation, in case and the bracket brick comes off, just need stopping production to overhaul in two months.Not only bring unnecessary huge materials consumption and fund input to dry quenching system; And the production of whole coking system caused unnecessary heavy losses; Simultaneously because steam production decline; Cause the equipment operation ratio in follow-up power station to reduce, generated energy reduces, and its serial financial loss is very huge.
Search by retrieval, still find no relevant documents and materials report and solution.
Summary of the invention
The object of the invention is exactly to the problems referred to above, provides a kind of under the situation of coke oven maintenance every day stopping production, still can keep the method for dry quenching system continuous and stable production.
Technical solution of the present invention is:
A kind of method of continuous coke discharge operation of coke dry quenching system; Be that the coke of taking to prestore combines with balanced production; According to a coke oven coke discharging amount and a day maintenance cycle; Through computingmachine adjustment dry quenching circulating fan revolution, blower fan baffle opening and vibratory feeder amplitude, control dry coke quenching coke discharging speed and the dried furnace charge position of putting out, the balanced continuous production of realization dry quenching system.
Its concrete technological process and technical parameter are:
Remain on 85%～93% of the maximum coke discharging speed of design through computer control dry coke quenching coke discharging speed;
Control the dried furnace charge position of putting out, material level remains on 70%～74% of the maximum material level of design before the coke oven maintenance, and the coke oven maintenance finishes material level and remains on 30%～36% of the maximum material level of design;
Increase the coke cooling air quantity, after dry quenching circulating fan started, blower fan increased revolution with 17～23 commentaries on classics/5min, after the blower fan revolution is increased to 1000 commentaries on classics/min, increased revolution by 8～13 commentaries on classics/5min again; The blower fan baffle opening increases 2～4% with every 5min and increases;
The recirculation blower rotating speed is controlled at 1100～1179 commentaries on classics/min, keeps air quantity to continue, stablize;
When vibratory feeder started, starting amplitude was that 10%, 2～4min adds to specified amplitude; Increase or when reducing the coke discharging amount, with the vibratory feeder amplitude as ordering parameter, each maximal regulated 3%, corresponding coke discharging amount is no more than 10t/h, is limited to the maximum coke discharging amount of design on the corresponding coke discharging amount of the peak swing of setting;
Control coke wet quenching charcoal is evenly accomplished in 24h;
Dry coke quenching is concentrated cleaning in the wet time of putting out of 6 stoves weekly to belt system.
Beneficial effect of the present invention is:
Because the present invention is through adjustment dry quenching circulating fan revolution, blower fan baffle opening and vibratory feeder amplitude control dry coke quenching coke discharging speed and the dried furnace charge position of putting out; Changed the operation scheme of dry quenching system relatively; Grasp the dry coke quenching production rate according to coke oven coke discharging amount; Reserve a part of coke in the dried stove section of prestoring of putting out according to the coke oven repair time, when the coke oven stop production to overhaul, utilize the coke that stores to realize continuous production.Thereby it is stable to have realized that dry quenching system is produced, and has reduced the frequent variations of temperature field, chute district and pressure field, has prolonged the work-ing life of bracket brick, has reduced the annual overhaul time and the accident treatment expense of dry coke quenching.Simultaneously, the continuous and stable production for rear portion steam power plant provides competent vapour source.According to incompletely statistics, can reduce every year because of changing the dry coke quenching repair time that the bracket brick causes and reach 40 days.
Embodiment
Below in conjunction with specific embodiment, the present invention is further described.
The method of the present invention's continuous coke discharge operation of coke dry quenching system; Mainly be to arrange and the grasp amount of coke that prestores according to coke oven coke discharging amount and day maintenance cycle; Implement balanced production according to the required amount of coke that prestores; Promptly through computingmachine adjustment dry quenching circulating fan revolution, all speed slowly increases with traveling at the uniform speed and combines; At the uniform velocity adjust simultaneously the blower fan baffle opening, to keep lasting, the stable supplying of air quantity, control coke speed of cooling.In conjunction with control vibratory feeder amplitude and coke discharging amount, set and regulate coke discharging speed and the dried furnace charge position of putting out, thereby guarantee the balanced coke discharging continuously of dry quenching system.
The concrete technological process and the technical parameter of the embodiment of the invention are:
19 hours coke oven turnover time, remain on 127 ± 2.5t/h through computer control dry coke quenching coke discharging speed.
20 hours coke oven turnover time, remain on 121 ± 2.5t/h through computer control dry coke quenching coke discharging speed.
21 hours coke oven turnover time, remain on 115 ± 2.5t/h through computer control dry coke quenching coke discharging speed.
Control the dried furnace charge position of putting out, the dried furnace charge position of putting out remains on 150t before the coke oven maintenance, and the coke oven maintenance finishes the dried furnace charge position of putting out, back and remains on 70t.
Increase the coke cooling air quantity, after dry quenching circulating fan started, blower fan was after 440 commentaries on classics/min speed, and blower fan turnover panel aperture is 35%.Blower fan increases revolution with 20 commentaries on classics/5min then, after the blower fan revolution is increased to 1000 commentaries on classics/min, increases revolution by 10 commentaries on classics/5min again.The blower fan baffle opening then increases 3% digit rate increase with every 5min.
The recirculation blower rotating speed is controlled at 1179 commentaries on classics/min, keeps air quantity to continue, stablize.
When vibratory feeder started, starting amplitude was 10%, and 3min adds to specified amplitude; Increase or when reducing the coke discharging amount, with the vibratory feeder amplitude as ordering parameter, each maximal regulated 3%, corresponding coke discharging amount is no more than 10t/h, the coke discharging amount that the peak swing of setting is corresponding is not more than 140t/h.
The coke oven employing transfers dried putting out to after wetting and putting out 6 stoves, and dry quenching system control coke wet quenching charcoal is evenly accomplished in 24h.
Dry coke quenching is concentrated cleaning in the wet time of putting out of 6 stoves weekly to belt system.
For the stability that guarantees that the continuous coke discharging of dry quenching system is produced, should switch No. one time tank car in every month; Per tour inspection individual layer and the bilayer sieve spare unit that shake; Switched once the single, double layer of sieve that shakes in per two days; Switched in every month once, the secondary bar grizzl(e)y each once.
Claims (1)
1. the method for a continuous coke discharge operation of coke dry quenching system; It is characterized in that; The coke of taking to prestore combines with balanced production, according to a coke oven coke discharging amount and a day maintenance cycle, through computingmachine adjustment dry quenching circulating fan revolution, blower fan baffle opening and vibratory feeder amplitude; Control dry coke quenching coke discharging speed and the dried furnace charge position of putting out, the balanced continuous production of realization dry quenching system; Its concrete technological process and technical parameter are:
Remain on 85%～93% of the maximum coke discharging speed of design through computer control dry coke quenching coke discharging speed;
Control the dried furnace charge position of putting out, material level remains on 70%～74% of the maximum material level of design before the coke oven maintenance, and the coke oven maintenance finishes material level and remains on 30%～36% of the maximum material level of design;
Increase the coke cooling air quantity, after dry quenching circulating fan started, blower fan increased revolution with 17～23 commentaries on classics/5min, after the blower fan revolution is increased to 1000 commentaries on classics/min, increased revolution by 8～13 commentaries on classics/5min again; The blower fan baffle opening increases 2～4% with every 5min and increases;
The recirculation blower rotating speed is controlled at 1100～1179 commentaries on classics/min, keeps air quantity to continue, stablize;
When vibratory feeder started, starting amplitude was that 10%, 2～4min adds to specified amplitude; Increase or when reducing the coke discharging amount, with the vibratory feeder amplitude as ordering parameter, each maximal regulated 3%, corresponding coke discharging amount is no more than 10t/h, is limited to the maximum coke discharging amount of design on the coke discharging amount that the peak swing of setting is corresponding;
Control coke wet quenching charcoal is evenly accomplished in 24h;
Dry coke quenching is concentrated cleaning in the wet time of putting out of 6 stoves weekly to belt system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100130423A CN101665703B (en) | 2008-09-01 | 2008-09-01 | Method for continuous coke discharging operation of coke dry quenching system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100130423A CN101665703B (en) | 2008-09-01 | 2008-09-01 | Method for continuous coke discharging operation of coke dry quenching system |
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| Publication Number | Publication Date |
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| CN101665703A CN101665703A (en) | 2010-03-10 |
| CN101665703B true CN101665703B (en) | 2012-07-18 |
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| CN2008100130423A Active CN101665703B (en) | 2008-09-01 | 2008-09-01 | Method for continuous coke discharging operation of coke dry quenching system |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102492437A (en) * | 2011-11-24 | 2012-06-13 | 南京钢铁股份有限公司 | Method for short-time on-line replacement of coke dry quenching furnace water sealed tank |
| CN102517049B (en) * | 2012-01-04 | 2013-05-29 | 中冶焦耐(大连)工程技术有限公司 | Intelligent coke feeding control method |
| CN104423395B (en) * | 2013-09-06 | 2016-08-17 | 宝山钢铁股份有限公司 | Coke dry quenching furnace coke discharge amount method of calibration |
| CN104479696B (en) * | 2014-10-23 | 2017-01-18 | 莱芜钢铁集团电子有限公司 | Control method and device of dry-quenching furnace pre-storage chamber material level |
| CN104479698B (en) * | 2014-12-10 | 2016-11-30 | 攀钢集团攀枝花钢钒有限公司 | Product method is protected for steam outside dry coke quenching |
| CN107163958A (en) * | 2017-06-30 | 2017-09-15 | 包头钢铁（集团）有限责任公司 | A kind of coke oven is dry, wet alternate drives production method away |
| CN111575027B (en) * | 2020-04-23 | 2021-06-22 | 包头钢铁（集团）有限责任公司 | Method for comprehensively processing power failure accident of coke dry quenching system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4330372A (en) * | 1981-05-29 | 1982-05-18 | National Steel Corporation | Coke oven emission control method and apparatus |
| CN101133139A (en) * | 2006-04-28 | 2008-02-27 | 钢铁普蓝特克股份有限公司 | Glowing red coke conveying device and method thereof |
-
2008
- 2008-09-01 CN CN2008100130423A patent/CN101665703B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4330372A (en) * | 1981-05-29 | 1982-05-18 | National Steel Corporation | Coke oven emission control method and apparatus |
| CN101133139A (en) * | 2006-04-28 | 2008-02-27 | 钢铁普蓝特克股份有限公司 | Glowing red coke conveying device and method thereof |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2005-272822A 2005.10.06 |
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| CN101665703A (en) | 2010-03-10 |
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