CN102517043A - Method for heating and controlling temperature of coke oven - Google Patents
Method for heating and controlling temperature of coke oven Download PDFInfo
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- CN102517043A CN102517043A CN2011103571186A CN201110357118A CN102517043A CN 102517043 A CN102517043 A CN 102517043A CN 2011103571186 A CN2011103571186 A CN 2011103571186A CN 201110357118 A CN201110357118 A CN 201110357118A CN 102517043 A CN102517043 A CN 102517043A
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Abstract
The invention relates to a method for heating and controlling temperature of a coke oven, which comprises the following steps: (1) detecting temperature of untreated gases of each coking chamber at a first coking period, obtaining an average coking index parameter 1 of the whole oven, and revising to obtain standard temperature Ts1 of the coke oven through the 1; (2) using the Ts1 as a standard temperature set value of a second coking period at the second coking period, measuring flue temperature to obtain an average flue temperature of the whole oven, determining heating coal gas flux so as to adjust temperature of the coke oven according to a deviation between the average flue temperature of the whole oven and the Ts1; and (3) detecting temperature of untreated gases of each coking chamber at the second coking period, obtaining an average coking index parameter 2, revising the Ts1 through the 2 to obtain standard temperature Ts2, using the Ts2 as a standard temperature set value of a third coking period, and processing later coking periods in the same manner. According to the method, the stability of the coke oven and coke quality index can be improved; and the system has low investment and long service life, and has significance in energy conservation and emission reduction of the coke oven, and obvious economic benefits.
Description
Technical field
The invention belongs to coke oven automation process technological synthesis field, relate in particular to the coke oven technical field of heating, be specially a kind of coke oven heating temperature control method.
Background technology
China is coking production big country, and the big and small coke oven in the whole nation has thousands of seats.Coke oven is a kind of special Industrial Stoves, is high-temperature chemical reactor, is again the huge and baroque Thermal Equipment of ten minutes, has characteristics such as large dead time, big inertia, strong nonlinearity, variable element and many disturbances.Coke oven is formed by a plurality of coking chambers are alternate with the combustion chamber, and each combustion chamber comprises the flue of some amount again, and wherein per two flues are formed a gas passage as a pair of, and its two ends are connected with following regenerator respectively.The mixed firing in numerous flues of coal gas and air; Through furnace wall with the coal charge in the heat transferred coking chamber; Coal charge is secluding air heating (being high temperature carbonization) in coking chamber, through stages such as super-dry, pyrolysis, fusion, bonding, curing, contractions, finally becomes coke.
Coke oven heating observing and controlling is the key link during coking is produced, and can directly have influence on efficient and the quality of coking, the life-span of body of heater, the environment of production operation etc. to the quality of temperature control effect.China's coking production technology is also relatively backward at present; The production model of most of enterprises remains extensive style, and coke oven heat-processed is to be main with manual operation always, and a lot of important technical parameters do not have perfect monitoring, control device; Only carry out the adjusting of coke oven heating through artificial thermometric; Regulating effect can't be guaranteed, and causes the decline of coking efficient and quality, the waste of the energy easily, even influences the work-ing life of pit kiln.The concrete problem that exists has: 1) standard temperature is confirmed according to knowhow by the technologist, and for fear of green coke occurring, the general standard temperature is higherly fixed, and energy consumption is inevitable bigger than normal; 2) the flue bottom temp is not equally distributed, different people, selects different MPs, and measuring result is had very big influence; 3) the flue bottom temp is time dependent, though the minute of mean flue temperature is to be defined in switching-over to carry out in back five minutes, the strict execution still has certain difficulty; A kind ofly can't overcome; Coaling during like thermometric, coke pushing operating influence thermometric on time, in advance or postponed 1 minute, often to influence ± 4 ~ 6oC; Artificial random in addition, like watch time not to factor such as good; 4) because the firing tunnel in coking furnace pressure surge is bigger, the heating gas flow fluctuation that has caused getting into coke oven machine side, coke side is big, is difficult to guarantee that the coke oven heating keeps rational air/fuel ratio, and energy consumption is inevitable big, needs further to improve to divide flue suction force.
From on can find out that implement the coke oven heating and optimize control automatically, it is very necessary and very urgent to the energy-saving and emission-reduction of coke oven, improving coke quality, prolonging converter life.
Summary of the invention
The objective of the invention is to heat the problem that exists in the control process, and a kind of coke oven heating temperature control method is provided in order to overcome existing coke oven.
The present invention realizes through following technical scheme:
A kind of coke oven heating temperature control method comprises the steps:
1), in first coking cycle, earlier with experience standard temperature T
fCoking temperature as this coking cycle is carried out coking, detects the raw gas temperature of overflowing from each coking chamber, and according to its raw gas temperature changing regularity curve, generates the corresponding coking index parameter K of each coking chamber automatically
1: K
1=τ
C1/ τ
M1, in the formula: τ
M1Arrive the peaked time for beginning to the raw gas temperature from coalingging; τ
C1Be the coking cycle; Simultaneously through the corresponding coking index K of each coking chamber
1Obtain the average coking index of full stove
1, again to experience standard temperature T
fAutomatically revise: T
S1=T
f+ 10.24 * τ
C1* (1/
1-1/ K
0), in the formula, T
S1Be the coke oven standard temperature; K
0For experience coking index parameter, get 1.2 ~ 1.7; Obtain the first standard temperature T of coke oven at last
S1
2), second coking cycle, with the first standard temperature T that obtains in first coking cycle
S1The coke oven standard temperature that is set at this coking cycle is carried out coking, and with the first standard temperature T
S1Signal conveys detects coke oven flue temperature T then automatically to the computer temperature control unit
hCheck point is arranged in the 8th quirk of each combustion chamber of pusher side and the 20th quirk of each combustion chamber of coke side; Per 5 combustion chambers are a monitoring group; Be that number of combustion chambers that each side detects is that 5 multiple and the combustion chamber in each monitoring group are that compartment detects, or all the combustion chamber is all detected; Afterwards with detected flue temperature T
hSignal also is transported to the computer temperature control unit and generates the average flue temperature of coke oven automatically
, the average flue temperature that the computer temperature control unit obtains input
With the first standard temperature T
S1Deviation carry out the automatic multi mode fuzzy operation (the automatic multi mode fuzzy operation be a kind of control method in the robotization control; Belong to existing known technology); To obtain the standard value of gas flow control unit; The gas flow control unit is controlled computing automatically according to the deviation of flow standard value and detected actual gas flow, thereby the aperture size of control gas flow variable valve is accomplished the control to coke oven temperature;
3), in second coking cycle, also the raw gas temperature of overflowing from each coking chamber is detected simultaneously, generate the corresponding coking index parameter K of each coking chamber automatically
2, through the corresponding coking index K of each coking chamber
2Obtain the average coking index of full stove
2, again to the first standard temperature T in second coking cycle
S1Automatically revise, obtain the second standard temperature T of coke oven at last again
S2: T
S2=T
S1+ 10.24 * τ
C2* (1/
2-1/ K
0), in the formula, K
0For experience coking index parameter, get 1.2 ~ 1.7; In the 3rd coking cycle, the second standard temperature T that second coking cycle obtained
S2The coke oven standard temperature set(ting)value that is set at the 3rd coking cycle is carried out coking, and repeating step 2 afterwards) in method coke oven temperature is controlled;
4), later each coking cycle all as stated above by that analogy, to reach the purpose of control coke oven temperature.
Need to prove; When coking; First coking cycle is carried out coking with an experience coking temperature as the coking temperature of coke oven earlier, and (experience coking temperature is relevant with factors such as coke making process parameter, coal blending parameters; Generally between 1200 ℃ ~ 1300 ℃), and obtain the average coking index parameter of the full stove in this coking cycle
1, through
1With experience coking index parameter K
0Obtain the first standard temperature T after empirical temperature revised
S1, and with this first standard temperature T
S1Degree is as the standard temperature set(ting)value in second coking cycle; Second coking cycle, also obtain the second standard temperature T in the second coking cycle through aforesaid method
S2, and with T
S2Standard temperature set(ting)value as the 3rd coking cycle; It is the standard temperature set(ting)value that the standard temperature value that obtains in first coking cycle will become second coking cycle; The standard temperature value that second coking cycle obtains will become the standard temperature set(ting)value in the 3rd coking cycle, and each coking cycle by that analogy later on.
Further, the MP of each coking chamber raw gas temperature is located at the root of coking chamber upcast or is located at the bridge tube position in the step 1).
Said step 2) measurement of coke oven flue temperature is to adopt the infrared optical fiber TM in, and the infrared optical fiber TM comprises optical lens, optical fiber that is installed in the peephole port and covers and the instrument that links to each other with optical lens through optical fiber; Temp measuring method is: optical lens is installed in the peephole port that detects flue in each combustion chamber covers; And optical lens aimed at bridge of the nose brick surface to collect optical signal; Then optical signal is pooled on the optical fiber; Optical signal is sent on the instrument through optical fiber and converts temperature signal to then, and last instrument is transported to temperature signal in the computer control unit again.
Judge whether sophisticated method has much coke, the most directly method is to measure the charge of coke core temperature, it is generally acknowledged the coke core temperature in the time of 1000 ± 50 ℃, and coke is ripe.Problems such as but there is complicated operation in this method, environment is abominable and interfering factors is many are difficult to long-term online steady running.
In process of coking, the fugitive constituent in the coal is just overflowed from coking chamber, forms raw gas, and raw gas is pooled in the effuser through upcast, bridge tube at last, gets into following one production process.At the initial stage of coalingging, the volatilization deal is big, and the coking chamber temperature is low, and the temperature of raw gas is also relatively low; Along with the rising of coking chamber temperature, also increase from the inner effusion raw gas of coking chamber temperature, rise to vertex after about tens hours; In this period, coal has become coke basically, and fugitive constituent seldom; The heat of taking away in the charing also seldom so the temperature of raw gas also slowly descends, finishes up to coke pushing.
The variation of temperature of raw gas has reflected that to a certain extent coal zoom process changes in the coking chamber, therefore through the research to the raw gas temperature variation, can judge the height of the mature condition and the standard temperature of coke indirectly.
Raw gas is with the visible Fig. 1 of the Changing Pattern of coking time; We can find out by Fig. 1, and the raw gas temperature begins steadily and lentamente to rise with coking time, rises to vertex after about tens hours; This point is claimed fiery drop point (the title flex point is also arranged), drops to coke pushing then again fast and finishes.
The vertex temperature is T
mBeing called fire from begin to coaling (a point) to time (c point) of fiery drop point falls the time (can claim that again gas analysed the time; Promptly begin to arrive the peaked time to the raw gas temperature from coalingging), to the time that goes out focus (b point), claim the stewing burnt time (or claiming to put the time) from fiery drop point; Then coking cycle=fire fall time+stewing burnt time, that is: τ
c=τ
m+ τ
Me
When it has been generally acknowledged that fiery drop point, coke is ripe basically, and raw gas has also been analysed, and the color of raw gas is changed into light blue to colourless by yellow, spends one period of putting then and boils in a covered pot over a slow fire the defocused coke pushing that gets final product.
In process of coking, raw gas according to certain rules what change, can draw the coking exponential model through the raw gas variation of temperature in different time sections:
K=?τ
c?/τ
m
In the formula: K-coking index;
τ
c-coking the cycle, h;
τ
m-fire falls time or begin to arrive peaked time, h to the raw gas temperature from coalingging.
Under certain situation of coking cycle, if K is big, the time that shows fiery drop point, early coke was ripe very early, vexed burnt overlong time, and coke is excessively ripe, explains that flue temperature is too high; Otherwise, if K is little, showing evening time of fiery drop point, coke sophisticated evening, vexed Jiao is very short in coke pushing, and the coke ripening degree is not enough, explains that flue temperature is on the low side.
When specifically measuring the raw gas temperature; Thermopair is located at the root of coking chamber upcast or is located at the bridge tube position; The raw gas temperature that detection is overflowed from each coking chamber; And, obtain the corresponding coking index parameter K of each coking chamber, and obtain the average coking index of full stove through the corresponding coking index K of each coking chamber according to the raw gas temperature changing regularity curve that computer system generates automatically
, at last to the coking temperature T in this coking cycle
fRevise, generate the standard temperature T that obtains coke oven automatically
s, standard temperature T
sModel be:
T
s=T
f+10.24×τ
c×（1/
-1/?K
0）
In the formula: K
0-experience coking index parameter (K
0Be a desirable empirical value that draws according to the analysis-by-synthesis to the measurement of charge of coke surface temperature and each coking chamber coking index parameter K, generally get 1.2 ~ 1.7, it is good in this scope, to burn the coke ripening degree that, and the quality of coke is high).
All objects with certain temperature all ceaselessly towards periphery the space send infrared energy.The size of the infrared energy of object and its surface temperature have very confidential relation.Therefore,, just can measure its surface temperature exactly, the objective base of infrared radiation temperature institute foundation that Here it is through measurement to object self radiating infrared energy.
What measure the flue temperature use in present method is exactly infrared optical fiber TM (as shown in Figure 2), and this infrared optical fiber TM comprises like the lower section:
1), optical lens: optical system is directly installed on the fiery empty port of seeing of furnace roof and covers, and aims at bridge of the nose brick surface through the range estimation aiming, and the total height of optical lens is lower than 80mm; The main influence of optical lens is flue dust and high temperature, and the optical lens among the present invention is kept pressure-fired always, and the flue dust shield cap is arranged before it, and flue dust advances not go; The optical lens working temperature is under the situation of blowing, and temperature is no more than 80 ℃, and under the blowing-out situation, temperature is no more than 150 ℃, and the heatproof upper limit of optical lens can reach more than 250 ℃;
2), optical fiber (photoconductive fiber): transmit the source to the optical signal of optical lens, optical fiber is high-purity quartz, and the chemical ingredients of quartz material is SiO
2, physicochemical property are very good, and it is corrosion-resistant, and fusing point is very high, can reach more than 250～350 ℃.Fiber arrangement is fixed on the outside of rail in 4 minutes galvanized pipe;
3), instrumental system: change into temperature signal to optical signal, it is installed in platform between stove, and its working temperature is < 60 ℃;
4), computer control system, dustproof, fire prevention, waterproof system etc.
Measure the selection of flue temperature MP and installation site; The general selection of point for measuring temperature arranged near coal charger/smoke elimination Car Track; Be the 20th quirk of each combustion chamber of the 8th quirk and coke side of each combustion chamber of pusher side, per 5 combustion chambers are a monitoring group, and the number of combustion chambers that promptly each side detected is 5 multiple; And the combustion chamber in each monitoring group is that compartment detects, and in addition also can carry out installation and measuring to all combustion chambers of full stove.
In sum, the idiographic flow of coke oven heating temperature control method of the present invention is as shown in Figure 3:
At first detect the raw gas temperature of a coking chamber in the coke oven, and generate the coking index parameter K of each coking chamber and the average coking index parameter of full stove automatically according to coking index parameter model
1, according to the standard temperature model coking temperature is revised again, draw the standard temperature of coke oven at last, and standard temperature is transported to the computer temperature control unit; Secondly the infrared optical fiber TM is installed on pit kiln; Can realize the automatic detection of flue temperature; And deliver to the computer temperature control unit to the signal of the average flue temperature of detected coke oven; The computer temperature control unit detects deviation and carries out the automatic multi mode fuzzy operation that (the automatic multi mode fuzzy operation is a kind of control method during robotization is controlled automatically to the average flue temperature of coke oven and the coke oven standard temperature of input; Belong to existing known technology), calculate the set(ting)value of gas flow control unit, the gas flow control unit detects the deviation of flow according to flow setting value and coal gas; Control the gas flow variable valve, confirm to add the flow of heating gas at last.
Saving energy and reduce the cost of the inventive method is obvious, remarkable in economical benefits; Improve the operational administrative automatization level that coke oven is produced, improved labor strength; For safety and production has improved technical guarantee; This method system investment is low, and the life-span is long, and is significant to the energy-saving and emission-reduction of coke oven.
Description of drawings
Fig. 1 be in the inventive method raw gas at the Changing Pattern of different time sections.
Fig. 2 is the structural representation of the inventive method middle infrared optical fiber TM.
Fig. 3 is the system flowchart of the inventive method.
Among the figure: 1-optical lens, 2-optical fiber, 3-instrument, the little bell of 4-peephole, 5-bridge of the nose brick.
Embodiment
With the JN60 Formed Coke Furnace is example, 50 hole coking chambers, and combustion chamber, 51 hole, and the experience coking index parameter of setting coke oven is K
0=1.4.
1), sets an experience standard temperature T earlier in first coking cycle
f=1200 ℃ are carried out coking for the coking temperature, detect the coking index parameter K of 50 coking chambers of coke oven respectively
1~ K
50, and draw the average coking index parameter of 50 coking chambers
1(detected result is seen table 1, wherein is τ
C1=24h), then the experience standard temperature is revised, obtain the first standard temperature T of coke oven at last
S1: T
S1=T
f+ 10.24 * τ
C1* (1/
1-1/ K
0)=1200+10.24 * 24 * (1/1.53-1/ 1.4)=1200-14.7=1185.3 ℃, be about to experience standard temperature T
fReduce 1185.3 ℃ of 14.7 ℃ of standard temperatures that are coke oven.
The coking index parameter of each coking chamber of table 1 and the complete average coking index parameter of stove thereof
| Heat (batch) number | 01 | 02 | 03 | 04 | 05 | … | 46 | 47 | 48 | 49 | 50 |
 |
| K | 1.40 | 1.44 | 1.39 | 1.50 | 1.58 | … | 1.65 | 1.41 | 1.44 | 1.35 | 1.29 | 1.53 |
2) in second coking cycle, the standard temperature T that first coking cycle is obtained
S1=1185.3 ℃ of standard temperature set(ting)values as this coking cycle, and be input in the computer temperature control unit.Detect the flue temperature of coke oven then; Peephole at the 20th quirk of the 8th quirk of each combustion chamber of pusher side and each combustion chamber of coke side is installed the infrared optical fiber TM; Machine, coke side respectively detect 3 groups of combustion chambers; Be that machine, coke side respectively detect 15 combustion chambers and do not organize the combustion chamber be that compartment detects, the sequence number of the combustion chamber of detection is respectively:
Pusher side (7,9,11,13,15), (20,22,24,26,28), (36,38,40,42,44);
Coke side (8,10,12,14,16), (21,23,25,27,29), (35,37,39,41,43).
Optical fiber is routed to platform between stove along rail, and instrument is placed on platform position between stove, and the temperature signal of instrument is carried through wires to the computer temperature control unit and draws the average flue temperature of coke oven
2, and with the average flue temperature in the second coking cycle
2Also be input in the computer temperature control unit.The average flue temperature that the computer temperature control unit will be imported
2With standard temperature T
S1=1185.3 ℃ deviation is carried out the automatic multi mode fuzzy operation; To obtain the standard value of gas flow control unit; The gas flow control unit is controlled computing automatically according to flow standard value and the deviation that detects gas flow; Thereby the aperture size of control gas flow variable valve is accomplished the control to coke oven temperature.
3) in the second coking cycle, also to detect the coking index parameter K of 50 coking chambers of coke oven simultaneously respectively
1~ K
50And average coking index parameter
2, and to the standard temperature set(ting)value T in the second coking cycle
S1Revise again for=1185.3 ℃, obtain the second standard temperature T of coke oven
S2, method is with above-mentioned step 1), then with the second standard temperature T
S2As the standard temperature set(ting)value in the 3rd coking cycle, and through the second standard temperature T
S2With the average flue temperature of the coke oven in the 3rd coking cycle
3Coke oven temperature to the 3rd coking cycle is regulated and control.
4) each later coking cycle is all pressed above-mentioned steps by that analogy, to reach the purpose of control coke oven temperature.
Pusher side (10,12,14,16,18), (43,45,47,49,51);
Coke side (11,13,15,17,19), (40,42,44,46,48).
All the other steps are all identical with embodiment 1 with method.
Claims (3)
1. a coke oven heating temperature control method is characterized in that, comprises the steps:
1), in first coking cycle, earlier with experience standard temperature T
fCoking temperature as this coking cycle is carried out coking, detects the raw gas temperature of overflowing from each coking chamber, and according to its raw gas temperature changing regularity curve, generates the corresponding coking index parameter K of each coking chamber automatically
1: K
1=τ
C1/ τ
M1, in the formula: τ
M1Arrive the peaked time for beginning to the raw gas temperature from coalingging; τ
C1Be the coking cycle; Simultaneously through the corresponding coking index K of each coking chamber
1Obtain the average coking index of full stove
1, again to experience standard temperature T
fAutomatically revise: T
S1=T
f+ 10.24 * τ
C1* (1/
1-1/ K
0), in the formula, T
S1Be the coke oven standard temperature; K
0For experience coking index parameter, get 1.2 ~ 1.7; Obtain the first standard temperature T of coke oven at last
S1
2), second coking cycle, with the first standard temperature T that obtains in first coking cycle
S1The coke oven standard temperature that is set at this coking cycle is carried out coking, and with the first standard temperature T
S1Signal conveys detects coke oven flue temperature T then automatically to the computer temperature control unit
hCheck point is arranged in the 8th quirk of each combustion chamber of pusher side and the 20th quirk of each combustion chamber of coke side; Per 5 combustion chambers are a monitoring group; Be that number of combustion chambers that each side detects is that 5 multiple and the combustion chamber in each monitoring group are that compartment detects, or all the combustion chamber is all detected; Afterwards with detected flue temperature T
hSignal also is transported to the computer temperature control unit and generates the average flue temperature of coke oven automatically
, the average flue temperature that the computer temperature control unit obtains input
With the first standard temperature T
S1Deviation carry out the automatic multi mode fuzzy operation; To obtain the standard value of gas flow control unit; The gas flow control unit is controlled computing automatically according to the deviation of flow standard value and detected actual gas flow; Thereby the aperture size of control gas flow variable valve is accomplished the control to coke oven temperature;
3), in second coking cycle, also the raw gas temperature of overflowing from each coking chamber is detected simultaneously, generate the corresponding coking index parameter K of each coking chamber automatically
2, through the corresponding coking index K of each coking chamber
2Obtain the average coking index of full stove
2, again to the first standard temperature T in second coking cycle
S1Automatically revise, obtain the second standard temperature T of coke oven at last again
S2: T
S2=T
S1+ 10.24 * τ
C2* (1/
2-1/ K
0), in the formula, K
0For experience coking index parameter, get 1.2 ~ 1.7; In the 3rd coking cycle, the second standard temperature T that second coking cycle obtained
S2The coke oven standard temperature set(ting)value that is set at the 3rd coking cycle is carried out coking, and repeating step 2 afterwards) in method coke oven temperature is controlled;
4), later each coking cycle all as stated above by that analogy, to reach the purpose of control coke oven temperature.
2. coke oven heating temperature control method according to claim 1 is characterized in that: the MP of each coking chamber raw gas temperature is located at the root of coking chamber upcast or is located at the bridge tube position in the step 1).
3. coke oven heating temperature control method according to claim 1 and 2; It is characterized in that: the measurement of coke oven flue temperature is to adopt the infrared optical fiber TM said step 2), and the infrared optical fiber TM comprises optical lens (1), optical fiber (2) that is installed on the little bell of peephole (4) and the instrument (3) that links to each other with optical lens (1) through optical fiber (2); Temp measuring method is: optical lens (1) is installed on the little bell of peephole (5) that detects flue in each combustion chamber; And it is optical lens (1) aiming bridge of the nose brick (5) is surperficial to collect optical signal; Then optical signal is pooled on the optical fiber (2); Optical signal is sent to instrument (3) through optical fiber (2) and goes up and convert to temperature signal then, and last instrument (3) is transported to temperature signal in the computer control unit again.
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| CN104583367A (en) * | 2012-08-23 | 2015-04-29 | 关西热化学株式会社 | Coke oven temperature control device and coke oven temperature control method |
| CN103540326A (en) * | 2013-10-31 | 2014-01-29 | 袁国炳 | Seal and insulation of temperature measuring small furnace lid of vertical flame path of coke oven |
| CN104357065A (en) * | 2014-11-08 | 2015-02-18 | 马钢(集团)控股有限公司 | Method for regulating and controlling temperature of coke oven |
| CN104830351A (en) * | 2015-04-28 | 2015-08-12 | 马鞍山市江海节能科技有限公司 | Control system and method for reducing oxynitride in coke oven waste gas |
| CN106753443A (en) * | 2016-12-28 | 2017-05-31 | 安徽工业大学 | The system of nitrogen oxides in a kind of coke oven exhaust gas from Sources controlling |
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| CN109666495A (en) * | 2018-12-21 | 2019-04-23 | 唐山首钢京唐西山焦化有限责任公司 | A kind of fault judgment method of coke furnace carbonization chamber |
| CN109628112B (en) * | 2019-01-07 | 2020-07-10 | 武汉钢铁有限公司 | Method for improving production efficiency of coke oven |
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| CN110377939A (en) * | 2019-06-10 | 2019-10-25 | 南京科瑞节能环保科技有限公司 | A kind of characterizing method of coke oven vertical flame path temperature |
| CN110377938B (en) * | 2019-06-10 | 2023-06-16 | 南京智宝节能环保科技有限公司 | Coke oven vertical flame path temperature field analysis method |
| CN111488689A (en) * | 2020-02-18 | 2020-08-04 | 南京沪友冶金机械制造有限公司 | Correction conversion method for straight-going temperature of coke oven |
| CN111488689B (en) * | 2020-02-18 | 2023-11-03 | 南京沪友冶金机械制造有限公司 | Correction conversion method for straight-going temperature of coke oven |
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| CN114644934A (en) * | 2022-04-18 | 2022-06-21 | 武汉钢铁有限公司 | Coke oven heating method matched with coking process of coal as fired |
| CN114644934B (en) * | 2022-04-18 | 2023-08-18 | 武汉钢铁有限公司 | Coke oven heating method matched with coking process of coal entering furnace |
| CN115074141A (en) * | 2022-06-17 | 2022-09-20 | 鞍山华泰环能工程技术有限公司 | Method and device for controlling combustion degree of heat recovery coke oven and coke oven system |
| CN115074141B (en) * | 2022-06-17 | 2023-07-14 | 鞍山华泰环能工程技术有限公司 | Method and device for controlling combustion degree of heat recovery coke oven and coke oven system |
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