CN105062509A - Flue suction and thermal carrier temperature control method in coke oven waste heat recovery - Google Patents
Flue suction and thermal carrier temperature control method in coke oven waste heat recovery Download PDFInfo
- Publication number
- CN105062509A CN105062509A CN201510438650.9A CN201510438650A CN105062509A CN 105062509 A CN105062509 A CN 105062509A CN 201510438650 A CN201510438650 A CN 201510438650A CN 105062509 A CN105062509 A CN 105062509A
- Authority
- CN
- China
- Prior art keywords
- coke oven
- flue
- temperature
- suction pipe
- control valve
- 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.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Coke Industry (AREA)
Abstract
The invention relates to a method for controlling flue suction and thermal carrier temperature in waste gas recovery. The method comprises: by taking total flue waste gas suctions P1 and P2 of coke ovens as controlled parameters, sending PID adjusting instructions to a 1# coke oven flue suction pipe electric adjusting valve, a 2# coke oven flue suction pipe electric adjusting valve or a frequency converter of a waste gas induced draft fan by detecting P1 and P2 actual suctions and input set suction through comparison with PLC to realize stable control of P1 and P2 suctions; and controlling the P1 and P2 separately by adopting different control strategies when the T4 actual temperature is less than the standard temperature T or the T4 actual temperature is greater than or equal to the standard temperature T. The method has the advantages that the flue suction stability is greatly improved; when the thermal carrier temperature T4 is less than T, the flue suction is stable and the temperature can be quickly raised to satisfy the user demand, and meanwhile, the total recovery of flue waste gas waste heat is increased. When T4 is greater than or equal to T, T4 is increased or decreased at a temperature difference of deltaT4=+/-2 DEG C, so that the problem of radical change of temperature can be effectively prevented.
Description
Technical field
The present invention relates to and relate to coking industry coke oven thermal control process and waste gas heat utilization technical field, particularly in waste gas residual heat recovery, flue suction force and thermal barrier temperature carry out the method controlled.
Background technology
At coking industry, it is large (for 2 × 55 hole JN60-6 Formed Coke Furnace that coke oven flue waste gas residual heat recycles potentiality, after heat exchange, flue-gas temperature is minimum is down to 105 DEG C of meters, energy-conservation 14674t (ce)/a), utilizability is high, and (such as flue gas is down to 105 DEG C from 230 DEG C, what reclaim is its sensible heat, and engineering very easily realizes; Reclaiming heat energy mode one is directly utilize waste gas residual heat to carry out coking coal humidifying, and two is that heat hot carrier is as low-pressure steam or high-temperature-hot-water, heat conduction wet goods secondary energy medium recycling).Stack gases heat recovery is the important technical of coking industry energy-saving and emission-reduction.Which kind of mode no matter is adopted to recycle coke oven flue waste gas residual heat, Engineering Control must ensure Collection and utilization therebetween heat balance and the stable and waste heat amount reclaimed maximizes, also must meet coke oven and produce and recovery process operating safety and stablizing separately.
To the device (Fig. 2,3) that production low-pressure steam or high-temperature-hot-water, heat conduction wet goods secondary energy medium (thermal barrier) recycle, technique both required recovery stack gases waste heat as much as possible, must ensure that again flue suction force meets Coke-oven Design and need of production and keeps stable, also must ensure that exchanger heat carrier outlet temperature-stable is to meet by hot device (family) process requirements simultaneously.Performer in Fig. 2 is: the outlet of waste gas induced draft fan motor-driven control valve 5, stack gases air suction main motorized valve 3,1
#position coke oven main chimney damper 1-1,2
#position coke oven main chimney damper 1-2 and fan frequency converter; Performer in Fig. 3 is: the outlet of waste gas induced draft fan motor-driven control valve 5, stack gases air suction main motorized valve 3,1
#position coke oven main chimney damper 1-1,2
#position coke oven main chimney damper 1-2 and fan frequency converter.
The existing Controlling System of such device (Fig. 1) is single loop feedback control: 1. attraction force control of smoke flue aspect: be controlled parameter with stack gases air suction main suction P3, by detecting the setting suction of P3 actual suction and input if (550 ~ 600) ± 50Pa is after PLC compares, send PID regulating command to performer, realize the control of P3 suction.2. thermal barrier temperature control aspect: be controlled parameter with the thermal barrier temperature T4 of thermal barrier-(giving up) gas heat exchange outlet, by detecting the design temperature of T4 actual temperature and input after PLC compares, send PID regulating command to flue gas suction control system again, enter interchanger high-temp waste gas amount and realize outlet thermal barrier temperature by increasing or reducing and control.
Existing its control aspect of coke oven flue waste gas residual heat recycle device all exists the unstable and waste heat recovery of coke oven flue suction can not maximization problems; To the device of heat hot carrier (steam or high-temperature-hot-water, heat conduction wet goods) for second stage employ, also there is the difficult control problem of second heat carrier (when particularly producing high-temperature-hot-water) heat-up rate.Be mainly reflected in:
(1) flue suction force with stack gases air suction main for control object, because the reasons such as on-the-spot pipeline layout cause 1
#, 2
#main flue contention suction and distribute inequality and unstable; Set(ting)value ± 30Pa the index of stability of its P1, P2 only 75% ~ 80%.
(2) coke oven flue spent air temperture and waste heat aggregate supply are metastable, but be less stable with hot systems because restricting its heat demand by many factors, for both realizations thermal equilibrium, need again to keep flue suction force simultaneously, therefore except adjustment K5, K6 or induced draft fan frequency, also needing frequently to regulate main chimney damper K1, K2, because there is governing response lag situation, exacerbating the fluctuation of main flue suction; In addition main chimney damper weighs several tons, and K1, K2 YE is because of the damage of long term frequent work fatiguability.
(3) steam/high-temperature-hot-water, the stability requirement of heat conduction wet goods second heat bed temperature are high (take high-temperature-hot-water as thermal barrier is example, its technique general requirement T4=140 ± 10 DEG C), simple employing T4 temperature and P3 suction serials control, often exist between P3 and T4 on the one hand situation of attending to one thing and lose sight of another (as: for improve T4 need to strengthen induced draft fan air quantity to improve waste gas residual heat produced quantity time, coke oven flue suction synchronously increases and cannot stablize; Also for ease of and reduce T4 when needing to reduce induced draft fan air quantity to reduce waste gas residual heat produced quantity, coke oven flue suction synchronously reduces and cannot stablize); On the other hand, because the hysteresis quality of governing response, there is T4 temperature, P3 suction big rise and big fall problem, user cannot be met (if indirect heating type coal humidity controlling system is to the needs of thermal barrier stability.
(4) coke oven flue waste gas residual heat yield is restricted.As previously mentioned, in order to stable P3 suction, again control T4 temperature, existing Controlling System has to take to be coordinated by K1, K2 to regulate.Part high-temp waste gas must be had like this without interchanger, induced draft fan and directly through smoke stack emission, make waste heat recovery not maximize.
Summary of the invention
Object of the present invention is just to provide flue suction force and thermal barrier temperature in the recovery of a kind of intelligent selection Formed Coke Furnace waste gas residual heat and carries out the method controlled.
Solution of the present invention is such:
In coke oven waste heat recovery, flue suction force and thermal barrier temperature carry out the method controlled, and it is characterized in that:
(1), flue suction force self-adaptation setting control step: be controlled parameter with each coke oven main flue waste gas suction P1, P2, by detecting P1, P2 actual suction with each coke oven main flue emissions standards suction preset after PLC compares, to 1
#position coke oven flue air suction pipe motor-driven control valve, 2
#the frequency transformer of position coke oven flue air suction pipe motor-driven control valve or waste gas induced draft fan sends PID regulating command, realizes the stability contorting of P1, P2 suction;
(2), thermal barrier temperature self-adaptation definite value selects rate-determining steps: established standards temperature T, detect the actual temperature of T4, as T4 actual temperature < standard temperature T, adopt flue suction force self-adaptation setting control step to improve waste gas produced quantity and stablize with control T4; As T4 actual temperature >=standard temperature T, by △ T4=± 2-4 DEG C temperature difference, wherein △ T4 refers to the difference of 2 actual measurement temperature before and after in the unit time, above-mentioned flue suction force self-adaptation setting control step is adopted to control waste gas produced quantity, utilize T4 " temperature difference control loop " to control to enter thermal barrier simultaneously---the heat carrier flow of (giving up) gas interchanger, thus it is stable to realize T4.
Technical scheme also comprises more specifically: in described step (1), is to adopt PLC step by step to 1
#position coke oven flue air suction pipe motor-driven control valve, 2
#frequency transformer → 1 of position coke oven flue air suction pipe motor-driven control valve → waste gas induced draft fan
#position coke oven main chimney damper, 2
#position coke oven main chimney damper sends and opens or closes instruction, makes P1, P2 remain on setting level, under normal circumstances, only has when previous stage performer uncontrollable P1, P2 stablize, and just starts next stage performer.
Further: in described step (2), be that employing system automatically detects T4 and compares with established standards temperature T; Select performed control program dynamically, intelligently according to more inclined extent and scope, making T4 temperature control in the scope of permissible variation up and down of set(ting)value is T ± 10 DEG C.
Further: described control program is: as T4>=T, control by the △ T4=± 2-4 DEG C of temperature difference, PLC control system is from trend 1
#position coke oven flue air suction pipe motor-driven control valve, 2
#position coke oven flue air suction pipe motor-driven control valve sends PID and closes small instruction, readjusts P1, P2 steady operation point, makes 1
#position coke oven flue air suction pipe motor-driven control valve, 2
#position coke oven flue air suction pipe motor-driven control valve (2-2) working order aperture≤30%, reduces waste gas produced quantity as far as possible; If 1
#position coke oven flue air suction pipe motor-driven control valve (2-1), 2
#position coke oven flue air suction pipe motorized adjustment valve opening has reached lower limit 5% still can not make the requirement of △ T4 cooling extent, and PLC sends frequency reducing instruction from trend induced draft fan frequency transformer, reduces waste gas produced quantity further; If △ T4 still can not meet and meets the requirements after frequency reducing, PLC sends out large instruction from the electronic bypass regulator valve of trend, enters heat exchanger flow to reduce thermal barrier; If still can not meet control overflow after electronic bypass regulator valve ends, PLC is from trend 1
#position coke oven flue air suction pipe motor-driven control valve, 2
#position coke oven flue air suction pipe motor-driven control valve sends out large instruction, to reduce waste gas produced quantity, realizes the stability contorting of interchanger outlet temperature T4.
Further: described control program is: as T4 < T, T4 and P1, P2 suction are self-adaptation setting control, above-mentioned flue suction force setting control step (1) is by by 1
#position coke oven flue air suction pipe motor-driven control valve, 2
#frequency transformer → 1 of position coke oven flue air suction pipe motor-driven control valve → waste gas induced draft fan
#position coke oven main chimney damper, 2
#position coke oven main chimney damper sends opens large instruction accordingly, makes P1, P2 remain on setting level, makes 1
#position coke oven flue air suction pipe motor-driven control valve, 2
#position coke oven flue air suction pipe motor-driven control valve working order aperture>=75%, strengthens waste gas produced quantity as far as possible; If 1
#position coke oven flue air suction pipe motor-driven control valve, 2
#position coke oven flue air suction pipe motorized adjustment valve opening has reached the upper limit 95% still can not make T4 bring up to range of set value, and now PLC sends PID instruction from trend K7, turns down electronic bypass regulator valve and enters heat exchanger flow realize stability contorting to increase thermal barrier.
Further: in described flue suction force self-adaptation setting control step, 1
#position coke oven main chimney damper, 2
#position coke oven main chimney damper is normal closing under normal circumstances.
Advantage of the present invention is:
(1) flue suction force stability greatly improves, and no longer occur that P1, P2 fight for P3 suction phenomenon, main chimney damper K1, K2 often close, and do not need frequent operation, and its YE life-span greatly improves; P1, P2 fluctuate within set(ting)value ± 30Pa, and index of stability brings up to 98%;
(2) thermal barrier temperature T4: 1. during T4 < 140 DEG C, can ensure that flue suction force is stablized, can improve rapidly temperature again and meet consumers' demand, add stack gases waste heat recovery total amount simultaneously; 2. when T4 >=140 DEG C, T4 increases with the △ T4=± 2-4 DEG C of temperature difference, subtracts, and can effectively prevent its temperature to rise and fall sharply and quickly problem, to the steady running of hot systems and heat exchange equipment security implications especially outstanding.
Accompanying drawing explanation
Fig. 1 is system of the present invention composition schematic diagram.
Fig. 2 is traditional attraction force control of smoke flue circuit diagram.
Fig. 3 is traditional thermal barrier control loop schematic diagram.
Fig. 4 is the attraction force control of smoke flue circuit diagram of the present invention to system shown in Figure 1.
Fig. 5 is the attraction force control of smoke flue circuit diagram of the present invention to system shown in Figure 1.
Embodiment
Below in conjunction with the system shown in Fig. 1, the present invention is described in detail:
Controlling System of the present invention comprises the coke oven flue suction control loop shown in Fig. 4 and the thermal barrier temperature control loop shown in Fig. 5; The former adopts self-adaptation setting control, and the latter adopts self-adaptation definite value to select to control.
In Fig. 4, performer is: 1
#position coke oven flue air suction pipe motor-driven control valve 2-1,2
#position coke oven flue air suction pipe motor-driven control valve 2-2, induced draft fan frequency transformer, 1
#position coke oven main chimney damper 1-1,2
#position coke oven main chimney damper 1-2.
In Fig. 5, performer is: 1
#position coke oven flue air suction pipe motor-driven control valve 2-1,2
#position coke oven flue air suction pipe motor-driven control valve 2-2, induced draft fan frequency transformer, 1
#position coke oven main chimney damper 1-1,2
#position coke oven main chimney damper 1-2, electronic bypass regulator valve 6.
(1) each coke oven main flue waste gas suction P1, P2 self-adaptation setting control: system automatically detect the first coke oven main flue waste gas suction P1, the second coke oven main flue waste gas suction P2 suction and with respective set(ting)value, as the present embodiment establishes value to be respectively: P1
if=300 ~ 450 ± 30Pa, P2
if=300 ~ 450 ± 30Pa compares, and its comparative result is as control signal input PLC(PID setter), PLC is step by step to 1
#position coke oven flue air suction pipe motor-driven control valve 2-1,2
#the frequency transformer of the waste gas induced draft fan 4 of position coke oven flue air suction pipe motor-driven control valve 2-2 or variable frequency control sends PID regulating command → 1
#position coke oven main chimney damper 1-1,2
#position coke oven main chimney damper 1-2 sends and opens or closes instruction, makes the first coke oven main flue waste gas suction P1, the second coke oven main flue waste gas suction P2 remains on setting level.Under normal circumstances, only have when the uncontrollable first coke oven main flue waste gas suction P1 of previous stage performer, the second coke oven main flue waste gas suction P2 stablize, just start next stage performer, 1
#, 2
#coke oven main chimney damper 1 can keep normal off status.
(2) thermal barrier temperature T4 self-adaptation definite value is selected to control, and system automatically detects T4 and compares with set(ting)value T, set(ting)value T=140 ± 10 DEG C of the present embodiment; Select performed control program dynamically, intelligently according to more inclined extent and scope, make temperature control, within the scope of permissible variation up and down of set(ting)value, to be generally 140 ± 10 DEG C.Its control strategy is as follows:
1. priority principle: first protect coke oven P1=300 ~ 450 ± 30Pa, P2=300 ~ 450 ± 30Pa suction stable preferential, next protects T ± 10 DEG C; Simultaneously under normal circumstances 1
#position coke oven main chimney damper 1-1,2
#position coke oven main chimney damper 1-2 is normal closing
2. as T4 < T, T4 and P1, P2 suction are self-adaptation setting control, and above-mentioned flue suction force setting control step (1) is by by 1
#position coke oven flue air suction pipe motor-driven control valve 2-1,2
#frequency transformer → 1 of position coke oven flue air suction pipe motor-driven control valve 2-2 → waste gas induced draft fan 4
#position coke oven main chimney damper 1-1,2
#position coke oven main chimney damper 1-2 sends and opens large instruction accordingly, makes P1, P2 remain on setting level, makes 1
#position coke oven flue air suction pipe motor-driven control valve 2-1,2
#position coke oven flue air suction pipe motor-driven control valve 2-2 working order aperture>=75%, strengthens waste gas produced quantity as far as possible; If 1
#position coke oven flue air suction pipe motor-driven control valve 2-1,2
#position coke oven flue air suction pipe motor-driven control valve 2-2 aperture has reached the upper limit 95% still can not make T4 bring up to range of set value, now PLC sends PID instruction from the electronic bypass regulator valve 6 of trend, turns down electronic bypass regulator valve 6 and enters heat exchanger flow realize stability contorting to increase thermal barrier.
3., when T4>=140 DEG C, select to control by the △ T4=± 2 DEG C temperature difference and P1, P2 suction, PLC control system is from trend 1
#position coke oven flue air suction pipe motor-driven control valve 2-1,2
#position coke oven flue air suction pipe motor-driven control valve 2-2 sends PID and closes small instruction, readjusts P1, P2 steady operation point, makes 1
#position coke oven flue air suction pipe motor-driven control valve 2-1,2
#position coke oven flue air suction pipe motor-driven control valve 2-2 working order aperture≤30%, reduces waste gas produced quantity as far as possible; If 1
#position coke oven flue air suction pipe motor-driven control valve 2-1,2
#position coke oven flue air suction pipe motor-driven control valve 2-2 aperture has reached lower limit 5% still can not make the requirement of △ T4 cooling extent, and PLC sends frequency reducing instruction from trend induced draft fan frequency transformer, reduces waste gas produced quantity further; If △ T4 still can not meet and meets the requirements after frequency reducing, PLC sends out large instruction from the electronic bypass regulator valve of trend 6, enters heat exchanger flow to reduce thermal barrier; If still can not meet control overflow after electronic bypass regulator valve 6 ends, PLC is from trend 1
#position coke oven flue air suction pipe motor-driven control valve 2-1,2
#position coke oven flue air suction pipe motor-driven control valve 2-2 sends out large instruction, to reduce waste gas produced quantity, realizes the stability contorting of interchanger outlet temperature T4.
As T4 < 140 DEG C, automatically recover control strategy control process 2., loop reversal like this, intelligent selection.
In accompanying drawing, 3 is stack gases air suction main motorized valves, and 5 is waste gas induced draft fan outlet motor-driven control valves, and 7 is thermal cyclic carrier pumps, 8 is thermal barrier-(giving up) gas interchanger, and 9 is with hot systems (as: indirect heating coal damping machine).
Claims (6)
1. in coke oven waste heat recovery, flue suction force and thermal barrier temperature carry out the method controlled, and it is characterized in that:
(1), flue suction force self-adaptation setting control step: be controlled parameter with each coke oven main flue waste gas suction P1, P2, by detecting P1, P2 actual suction with each coke oven main flue emissions standards suction preset after PLC compares, to 1
#position coke oven flue air suction pipe motor-driven control valve (2-1), 2
#the frequency transformer of the waste gas induced draft fan (4) of position coke oven flue air suction pipe motor-driven control valve (2-2) or variable frequency control sends PID regulating command, realizes the stability contorting of P1, P2 suction;
(2), thermal barrier temperature self-adaptation definite value selects rate-determining steps: established standards temperature T, detect the actual temperature of T4, as T4 actual temperature < standard temperature T, adopt flue suction force setting control step to improve waste gas produced quantity and stablize with control T4; As T4 actual temperature >=standard temperature T, by △ T4=± 2-4 DEG C temperature difference, wherein △ T4 refers to the difference of 2 actual measurement temperature before and after in the unit time, above-mentioned flue suction force setting control step is adopted to control waste gas produced quantity, utilize T4 " temperature difference control loop " to control to enter thermal barrier simultaneously---the heat carrier flow of (giving up) gas interchanger, thus it is stable to realize T4.
2. in coke oven waste heat recovery according to claim 1, flue suction force and thermal barrier temperature carry out the method controlled, and it is characterized in that: in described step (1), are to adopt PLC step by step to 1
#position coke oven flue air suction pipe motor-driven control valve (2-1), 2
#frequency transformer → 1 of the waste gas induced draft fan (4) of position coke oven flue air suction pipe motor-driven control valve (2-2) → variable frequency control
#position coke oven main chimney damper (1-1), 2
#position coke oven main chimney damper (1-2) sends and opens or closes instruction, makes P1, P2 remain on setting level, under normal circumstances, only has when previous stage performer uncontrollable P1, P2 stablize, and just starts next stage performer.
3. in coke oven waste heat recovery according to claim 1, flue suction force and thermal barrier temperature carry out the method controlled, and it is characterized in that: in described step (2), are that employing system automatically detects T4 and compares with established standards temperature T; Select performed control program dynamically, intelligently according to more inclined extent and scope, making T4 temperature control in the scope of permissible variation up and down of set(ting)value is T ± 10 DEG C.
4. in coke oven waste heat recovery according to claim 3, flue suction force and thermal barrier temperature carry out the method controlled, it is characterized in that: described control program is: as T4>=T, select to control by △ T4=± 2-4 DEG C temperature difference and P1, P2 suction, PLC control system is from trend 1
#position coke oven flue air suction pipe motor-driven control valve (2-1), 2
#position coke oven flue air suction pipe motor-driven control valve (2-2) sends PID and closes small instruction, readjusts P1, P2 steady operation point, makes 1
#position coke oven flue air suction pipe motor-driven control valve (2-1), 2
#position coke oven flue air suction pipe motor-driven control valve (2-2) working order aperture≤30%, reduces waste gas produced quantity as far as possible; If 1
#position coke oven flue air suction pipe motor-driven control valve (2-1), 2
#position coke oven flue air suction pipe motor-driven control valve (2-2) aperture has reached lower limit (5%) still can not make the requirement of △ T4 cooling extent, and PLC sends frequency reducing instruction from trend induced draft fan frequency transformer, reduces waste gas produced quantity further; If △ T4 still can not meet and meets the requirements after frequency reducing, PLC sends out large instruction from the electronic bypass regulator valve of trend (6), enters heat exchanger flow to reduce thermal barrier; If still can not meet control overflow after electronic bypass regulator valve (6) ends, PLC is from trend 1
#position coke oven flue air suction pipe motor-driven control valve (2-1), 2
#position coke oven flue air suction pipe motor-driven control valve (2-2) sends out large instruction, to reduce waste gas produced quantity, realizes the stability contorting of interchanger outlet temperature T4.
5. in coke oven waste heat recovery according to claim 3, flue suction force and thermal barrier temperature carry out the method controlled, it is characterized in that: described control program is: as T4 < T, T4 and P1, P2 suction are self-adaptation setting control, and above-mentioned flue suction force setting control step (1) is by by 1
#position coke oven flue air suction pipe motor-driven control valve (2-1), 2
#frequency transformer → 1 of position coke oven flue air suction pipe motor-driven control valve (2-2) → waste gas induced draft fan (4)
#position coke oven main chimney damper (1-1), 2
#position coke oven main chimney damper (1-2) sends opens large instruction accordingly, makes P1, P2 remain on setting level, makes 1
#position coke oven flue air suction pipe motor-driven control valve (2-1), 2
#position coke oven flue air suction pipe motor-driven control valve (2-2) working order aperture>=75%, strengthens waste gas produced quantity as far as possible; If 1
#position coke oven flue air suction pipe motor-driven control valve (2-1), 2
#position coke oven flue air suction pipe motor-driven control valve (2-2) aperture has reached the upper limit (95%) still can not make T4 bring up to range of set value, now PLC sends PID instruction from trend K7, turns down electronic bypass regulator valve (6) and enters heat exchanger flow realize stability contorting to increase thermal barrier.
6. in coke oven waste heat recovery according to claim 1, flue suction force and thermal barrier temperature carry out the method controlled, and it is characterized in that: in described flue suction force self-adaptation setting control step, and 1
#position coke oven main chimney damper (1-1), 2
#position coke oven main chimney damper (1-2) is normal closing under normal circumstances.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510438650.9A CN105062509A (en) | 2015-07-24 | 2015-07-24 | Flue suction and thermal carrier temperature control method in coke oven waste heat recovery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510438650.9A CN105062509A (en) | 2015-07-24 | 2015-07-24 | Flue suction and thermal carrier temperature control method in coke oven waste heat recovery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105062509A true CN105062509A (en) | 2015-11-18 |
Family
ID=54492037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510438650.9A Pending CN105062509A (en) | 2015-07-24 | 2015-07-24 | Flue suction and thermal carrier temperature control method in coke oven waste heat recovery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105062509A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105385460A (en) * | 2015-12-02 | 2016-03-09 | 中冶焦耐工程技术有限公司 | Circulating structure and method for exhaust gas of coke oven |
| CN107860012A (en) * | 2017-12-08 | 2018-03-30 | 无锡博勒能源科技有限公司 | A kind of processing VOCs RTO waste heat organic heat carrier furnaces and temperature control method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201105915A (en) * | 2009-08-14 | 2011-02-16 | Jg Environmental Tech Co Ltd | Purification energy saving device and method for exhaust system in baking process |
| CN103047637A (en) * | 2013-01-25 | 2013-04-17 | 中冶赛迪工程技术股份有限公司 | Coke furnace flue gas waste heat and ascending pipe coal gas waste heat combined recycling system |
| CN103335530A (en) * | 2013-07-03 | 2013-10-02 | 中冶焦耐工程技术有限公司 | Coke oven flue gas waste heat recovery technology |
| RU2507234C1 (en) * | 2012-06-15 | 2014-02-20 | Евгений Алексеевич Данилин | Plant and method of thermal neutralisation and recovery of heat of smoke gases discharged from fuel-burning units, and system to control their operation |
| CN203719434U (en) * | 2013-12-27 | 2014-07-16 | 天津华能能源设备有限公司 | Waste heat recovery system used in coke oven flues |
| CN204214287U (en) * | 2014-11-06 | 2015-03-18 | 江西永源节能环保科技有限公司 | A kind of coke oven flue waste gas afterheat recovery unit |
-
2015
- 2015-07-24 CN CN201510438650.9A patent/CN105062509A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201105915A (en) * | 2009-08-14 | 2011-02-16 | Jg Environmental Tech Co Ltd | Purification energy saving device and method for exhaust system in baking process |
| RU2507234C1 (en) * | 2012-06-15 | 2014-02-20 | Евгений Алексеевич Данилин | Plant and method of thermal neutralisation and recovery of heat of smoke gases discharged from fuel-burning units, and system to control their operation |
| CN103047637A (en) * | 2013-01-25 | 2013-04-17 | 中冶赛迪工程技术股份有限公司 | Coke furnace flue gas waste heat and ascending pipe coal gas waste heat combined recycling system |
| CN103335530A (en) * | 2013-07-03 | 2013-10-02 | 中冶焦耐工程技术有限公司 | Coke oven flue gas waste heat recovery technology |
| CN203719434U (en) * | 2013-12-27 | 2014-07-16 | 天津华能能源设备有限公司 | Waste heat recovery system used in coke oven flues |
| CN204214287U (en) * | 2014-11-06 | 2015-03-18 | 江西永源节能环保科技有限公司 | A kind of coke oven flue waste gas afterheat recovery unit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105385460A (en) * | 2015-12-02 | 2016-03-09 | 中冶焦耐工程技术有限公司 | Circulating structure and method for exhaust gas of coke oven |
| CN107860012A (en) * | 2017-12-08 | 2018-03-30 | 无锡博勒能源科技有限公司 | A kind of processing VOCs RTO waste heat organic heat carrier furnaces and temperature control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104141964B (en) | Industrial furnace supply air system and method | |
| CN102629131A (en) | Coordinative control method for pulse-mode regulation of condensate flow to participate in frequency modulation | |
| CN102392119A (en) | Online comprehensive control method for hot-galvanized continuous annealing furnace | |
| CN104501421A (en) | Control method of variable-frequency two-stage compressive heat pump water heater | |
| CN112760439B (en) | Undisturbed furnace change control method for hot blast furnace | |
| CN104962727A (en) | Continuous annealing furnace heating section furnace-temperature control system and method | |
| CN101070477B (en) | Multi-coke-oven gas-colluection-pipe pressure control apparatus and method | |
| CN107166733A (en) | Electromagnetic heater and its load self-adapting method | |
| CN112665407B (en) | Hearth pressure control method for regenerative heating furnace | |
| CN103712235A (en) | Primary air fan controlling method and device | |
| CN105062509A (en) | Flue suction and thermal carrier temperature control method in coke oven waste heat recovery | |
| CN109751590A (en) | Double reheat boiler and attemperation of steam method | |
| CN114675543B (en) | Hot blast stove intelligent combustion control method based on optimized learning algorithm | |
| CN103922575A (en) | Energy-saving system of cooling air hose of glass annealing kiln and cooling method of glass tape | |
| CN108415486A (en) | A kind of dynamic regulating method of high-field electrode boiler power | |
| CN104087696A (en) | Automatic control system and method based on PLC (Programmable Logic Controller) and used for controlling combustion of hot-blast stove | |
| CN101929736B (en) | Temperature control method for heating furnace based on heat accumulating type nozzle | |
| CN205874470U (en) | Blast funnace hot blast stove optimal control system | |
| CN106222346A (en) | A kind of blast furnace and hot blast cupola combustion optimal control method | |
| CN106221709A (en) | The control system of coke oven collecting main pressure | |
| CN109539359A (en) | The phase transformation electric heat-storage heating system and method for divided working status PID+ adaptive feedforward compensation | |
| CN105180205A (en) | Control method for oxygen-enriched combustion smoke circulation system | |
| CN104805247A (en) | Energy-saving regulating and controlling method for combustion fan of blast furnace hot blast stove | |
| CN104232823A (en) | Control method for furnace exchange of hot air furnace under constant pressure | |
| CN201507945U (en) | Control, regulation and remote monitoring system for fuel/gas boilers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151118 |