CN106967448A - A kind of furnace drying method after the resistance to material large area replacing of dry quenching system - Google Patents
A kind of furnace drying method after the resistance to material large area replacing of dry quenching system Download PDFInfo
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- CN106967448A CN106967448A CN201710223920.3A CN201710223920A CN106967448A CN 106967448 A CN106967448 A CN 106967448A CN 201710223920 A CN201710223920 A CN 201710223920A CN 106967448 A CN106967448 A CN 106967448A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B39/00—Cooling or quenching coke
- C10B39/02—Dry cooling outside the oven
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Abstract
The present invention relates to Dry Quenching Technology field, and in particular to the furnace drying method after a kind of resistance to material large area replacing of dry quenching system, comprises the following steps：Warm air is dried, with coke dry quenching furnace inlet temperature T2For main management temperature, the temperature T for section that coke dry quenching furnace is prestored5100 DEG C ~ 120 DEG C are raised to by normal temperature；Dry coke quenching coal gas baker burner is installed, importing air by adjusting disposable dust remover emergency diffusion valve helps coke-stove gas to burn baker, is prestored a section temperature T with the coke dry quenching furnace5For main management temperature, 500 DEG C ~ 600 DEG C are risen to；Use N2Gas displacement is carried out to coke dry quenching furnace, control combustible gas component content throws red burnt baker into coke dry quenching furnace, the most at last coke dry quenching boiler inlet temperature T within safe range6It is increased to 800 DEG C ~ 960 DEG C, the coke dry quenching furnace prestores a section temperature T5It is increased to 800 DEG C ~ 1050 DEG C.Coal gas baker and red burnt baker are combined by the present invention, both ensure stove quality, and the shortening baker duration is realized again.
Description
Technical field
The present invention relates to Dry Quenching Technology field, and in particular to the baker after a kind of resistance to material large area replacing of dry quenching system
Method.
Background technology
Dry quenching system is gradually heating to that red burnt temperature can be filled from cold conditions, and this process is referred to as dry coke quenching baker.It is dry
Quenching system terminates in brickwork engineering or annual overhaul terminates, main equipment is debugged after finishing, and formally fills red Jiao in dry coke quenching and goes into operation it
Before, to carry out the baker operation of dry quenching system.
Dry coke quenching baker is divided to the temperature-rising method that masonry is dried and system heats up two stages, is taken after warm air drying terminates
There are two kinds：Coal gas baker temperature-rising method and the red burnt temperature-rising method of throwing.Generally for newly-built dry coke quenching baker, to ensure the matter that goes into operation
Amount, using coal gas baker temperature-rising method, i.e., sets dry coke quenching coal gas baker burner and a secondary air register in coke dry quenching furnace baker hole,
Logical coke-stove gas makes its generation heat that burnt in coke dry quenching furnace, and most the coke dry quenching furnace section masonry temperature that prestores rises to 800 DEG C at last.The liter
Warm method operating process is complicated, and labor intensity is big, and the whole temperature-rise period used time is longer.And for the annual overhaul of small area resistance to material repairing
Heating is using the method for throwing red burnt heating afterwards, that is, it is that thermal source rises to coke dry quenching furnace masonry temperature to put into red Jiao Li with red heat coke
800℃.Although the temperature-rising method can realize being rapidly heated for whole dry quenching system, the temperature-rising method is only applicable to do
The resistance to material of quenching system repairs little annual overhaul.
At present when the resistance to material large area of dry quenching system is changed and repaired, typically by the baker of newly-started coke dry quenching furnace
Method carries out baker, and the method for throwing red burnt heating is optimized patent ZL201110431864.5, with realize stove quality,
The target that duration neglects neither, which disclose a kind of temperature-rising method of coke dry quenching furnace, and this method is included to built-in cold Jiao of coke dry quenching furnace
Cover after central blast cap, red Jiao put into coke dry quenching furnace, make red Jiao cover before cold Jiao, then throw red before cold Jiao is allowed to cover
Jiao, then leads to inert gas from bottom, and warm air drying is carried out using red burnt heat, and inert gas is from the sky between two adjacent brackets
Between discharged through ring-shaped flue and peephole, the coke cooled is discharged from coke dry quenching furnace bottom, is repeated repeatedly, is realized coke dry quenching furnace
Heating, temperature when most coke dry quenching furnace temperature rises to normal production at last.
The above method has the following disadvantages：1st, red Jiao inevitably contacts with furnace wall, direct when masonry temperature is relatively low
Red Jiao is thrown, the masonry of red burnt areas adjacent can acutely heat up, the overall stove quality of influence.2nd, ring-shaped flue and peephole are prestoring
Section lower section, the inert gas for absorbing red burnt heat is discharged from the space between two adjacent brackets through ring-shaped flue and peephole, nothing
Method ensures that section masonry that prestores uniformly heats up.
The content of the invention
Furnace drying method after being changed the invention provides a kind of resistance to material large area of dry quenching system, by coal gas baker and red Jiao
Baker is combined, and both ensures stove quality, is realized again and is shortened the baker duration.
In order to achieve the above object, the technical solution adopted in the present invention is as follows：
Furnace drying method after a kind of resistance to material large area replacing of dry quenching system, it is characterised in that comprise the following steps：
Step one：Warm air is dried, with coke dry quenching furnace inlet temperature T2For main management temperature, the temperature for section that coke dry quenching furnace is prestored
T5100 DEG C~120 DEG C are raised to by normal temperature；
Step 2：3~5 dry coke quenching coal gas baker burners are installed, opened by adjusting disposable dust remover emergency diffusion valve
Degree imports air and helps coke-stove gas to burn baker, is prestored a section temperature T with the coke dry quenching furnace5For main management temperature, risen to
500 DEG C~600 DEG C；
Step 3：Dry coke quenching coal gas baker burner is quickly removed, the disposable dust remover is closed urgent in closing baker hole
Diffusion valve, uses N2Gas displacement is carried out to coke dry quenching furnace, until O in coke dry quenching furnace2Content reaches less than 5%, is thrown into the coke dry quenching furnace
Red burnt baker, with coke dry quenching boiler inlet temperature T6For main management temperature, prestored a section temperature T with the coke dry quenching furnace5For auxiliary tube
Manage temperature, the at last most coke dry quenching boiler inlet temperature T6It is increased to 800 DEG C~960 DEG C, the coke dry quenching furnace prestores a section temperature T5
It is increased to 800 DEG C~1050 DEG C.
Further, the baker hole in the step 3 be the length of side retained after people's bore portion is sealed be 300mm~
400mm square hole.
Further, the dry coke quenching coal gas baker burner includes supervisor, and the supervisor two ends are respectively perpendicular setting
Front end and end, the front end be provided with flange, the end be provided with nozzle.
Further, the internal diameter of the dry coke quenching coal gas baker burner is 50mm.
Further, the nozzle of the dry coke quenching coal gas baker burner is positioned on the central coke of coke dry quenching furnace by baker hole
Side is fixed, and the front end of the dry coke quenching coal gas baker burner is connected with coke-stove gas supervisor by flange.
Further, section temperature T that coke dry quenching furnace prestores in the step one5100 DEG C~120 DEG C of method is raised to by normal temperature
It is as follows：
A, to built-in cold Jiao of the coke dry quenching furnace so that cold Jiao covers central blast cap；
B, by air from the disposable dust remover emergency diffusion valve import boiler, the boiler using low-pressure steam to air
Heated, air is heated up with 10 DEG C/h~15 DEG C/h speed, be heated to 160-170 DEG C of holding；
C, the hot-air come out from the boiler blasted into the coke dry quenching furnace, the coke dry quenching furnace is dried, dried
Coke dry quenching furnace described in journey prestore section Stress control in 30-60Pa, until coke dry quenching furnace prestore a section masonry temperature reach 100 DEG C~
24h is kept after 120 DEG C.
Further, the boiler is heated using low-pressure steam to air, and the air is according to 10 DEG C/h~15 DEG C/h
Speed heated up.
Further, air is imported in the step 2 helps the method for coke-stove gas burning baker as follows：
Dry coke quenching coal gas baker burner end nozzle is installed on above the central coke of coke dry quenching furnace by baker hole and fixed,
Start circulating fan, run with minimum speed, open disposable dust remover emergency diffusion valve, it is ensured that sufficient air imports coke dry quenching furnace
It is interior；
To each section of progress N of dry coke quenching coal gas baker burner2The fight flow control valve that slowly turns on the gas-fire, point are put after displacement
By gas flow governor valve control coke gas flow and circulating fan rotating speed and disposable dust remover emergency diffusion are adjusted after combustion
Valve opening control air imbibed quantity, coke dry quenching furnace masonry is heated up with 4 DEG C/h~5 DEG C/h, up to furnace temperature rise to 500 DEG C~
600℃。
Further, coke dry quenching boiler inlet temperature T in the step 36Prestored a section temperature T with the coke dry quenching furnace5Heating
Speed is respectively according to T6≤30℃/h、T5≤ 15 DEG C/h is heated up.
Having the beneficial effect that produced by the present invention：
The coke dry quenching furnace bottom of the present invention is set to less baker hole, it is not necessary to retains a secondary air register, but utilizes and adjust
Whole disposable dust remover emergency diffusion aperture controls air import volume, can be kept away after coal gas baker terminates with quick closure baker hole
Exempt from a large amount of cold airs and entered coke dry quenching furnace, prevent the resistance to material of coke dry quenching furnace from significantly cooling.And hot waste gas passes through pre- during baker
Deposit section and section masonry heat exchange that prestores after discharged from the bleeding valve on top, be effectively guaranteed coke dry quenching furnace and prestore the equal of section masonry
Even heating.
The present invention replaces original internal diameter is larger to do using 3~5 internal diameter 50mm dry coke quenching coal gas baker burner
Quenching coal gas baker burner, crane need not be used with dismounting operation by installing, it is easy to installing/dismounting, after coal gas baker terminates
It can take out quick-detach soon, it is to avoid the take-down time is long, the resistance to material cooling of coke dry quenching furnace is excessive.
The resistance to material of dry coke quenching is warming up to 500 DEG C~600 DEG C by the present invention using coal gas baker, it is therefore prevented that straight under low-temperature condition
Connect and throw the problem of local masonry heating that red Jiao brings is too fast, but red Jiao is thrown when coke dry quenching furnace masonry temperature is higher and is dried
Stove, both ensures stove quality, and the baker duration is shortened again.
Brief description of the drawings
Fig. 1 is warm air drying steps flow chart of the invention；
Fig. 2 is coal gas baker flow chart of steps of the invention；
Fig. 3 is red burnt baker flow chart of steps of the invention；
Fig. 4 is the structural representation of the dry coke quenching coal gas baker burner of the present invention；
Coke-stove gas supervisors and the interface diagram of dry coke quenching coal gas baker burner of the Fig. 5 for the present invention.
In figure：1- coke-stove gas supervisor, 2- gas flows regulating valve, 3- flanges, 4- nozzles, 5- supervisor.
Embodiment
Carry out the specific description present invention with specific embodiment below in conjunction with the accompanying drawings, but protection scope of the present invention is not limited
In this.
Embodiment 1
As shown in Fig. 1~5, the furnace drying method after a kind of resistance to material large area replacing of dry quenching system comprises the following steps：
Step one：Warm air is dried, with coke dry quenching furnace inlet temperature T2For main management temperature, coke dry quenching furnace is prestored a section temperature T5
120 DEG C are raised to by normal temperature, following content is specifically included：
A, to built-in cold Jiao of coke dry quenching furnace so that cold Jiao covers central blast cap.
B, seal part manhole, retain a length of side and be used as baker hole for 400mm square hole.
C, air from disposable dust remover emergency diffusion valve imported into boiler, boiler added using low-pressure steam to air
Heat, makes air be heated up with 10 DEG C/h speed, is heated to 165 DEG C of holdings.
D, the hot-air come out from boiler blasted into coke dry quenching furnace, coke dry quenching furnace is dried, prestore section in drying course
Stress control is in 50-60Pa, until coke dry quenching furnace prestores after a section masonry temperature reaches 120 DEG C and keeps 24h.By Stress control 50~
60Pa is able to ensure that a part of hot-air passes through the coke dry quenching furnace section that prestores and section masonry that prestores is heated, it is ensured that coke dry quenching furnace is pre-
The uniform heating of section refractory material is deposited, the service life of refractory material is extended.
The air discharged from coke dry quenching furnace is delivered to after ground station for dust removal carries out dust removal process by environment dust collect plant and is discharged into
Air, it is to avoid pollute to air.
Step 2：Make and dry coke quenching coal gas baker burner is installed, opened by adjusting disposable dust remover emergency diffusion valve
Degree imports air and helps coke-stove gas to burn baker, is prestored a section temperature T with coke dry quenching furnace5For main management temperature, 600 are risen to
DEG C, it is specific as follows：
E, 5 internal diameter 50mm front ends of making are flanged, the end nozzle dry coke quenching coal gas baker combustion vertical with gas piping
Burner.The dry coke quenching coal gas baker burner includes supervisor 5, and 5 two ends of supervisor are respectively perpendicular the front end and end of setting,
The front end is provided with flange 3, and the end is provided with nozzle 4, by baker hole by dry coke quenching coal gas baker burner end nozzle 4
It is positioned over above the central coke of coke dry quenching furnace and fixes, front end is connected with coke-stove gas supervisor 1 by flange 3.The dry coke quenching coal gas dries
Burner makes simple, and installation need not use crane with dismounting operation, facilitate installing/dismounting, when coal gas baker terminates
After can quickly remove, it is to avoid the take-down time is long, and the resistance to material cooling of coke dry quenching furnace is excessive.
F, startup circulating fan, are run with minimum speed, open disposable dust remover emergency diffusion valve, it is ensured that sufficient air
Import in coke dry quenching furnace.
G, to each section of dry coke quenching coal gas baker burner progress N2Lighted a fire after displacement and the flow tune that slowly turns on the gas-fire
Valve 2 is saved, by the flow of gas flow governor valve control coke-stove gas and the rotating speed of circulating fan is adjusted after lighting and once removes
Dirt device emergency diffusion valve opening controls air imbibed quantity, coke dry quenching furnace masonry is heated up with 5 DEG C/h, until the furnace temperature of coke dry quenching furnace
Rise to 600 DEG C.Waste gas after burning, is partly diffused from furnace roof, and being delivered to ground station for dust removal through environment dust collect plant carries out dedusting
Be discharged into air after processing, another part after disposable dust remover dust removal process with air mixing preheated air, then by this part gas
Body feeding boiler heating, this portion gas come out from boiler is blasted dry after secondary filter dust removal process by circulating fan
Putting out stove helps coke-stove gas to burn.
Step 3：Dry coke quenching coal gas baker burner is quickly removed, disposable dust remover emergency diffusion is closed in closing baker hole
Valve, uses N2To coke dry quenching furnace carry out gas displacement, to oxygen content≤5% it is qualified after, red burnt baker is thrown into coke dry quenching furnace, is put out with dry
Burnt boiler inlet temperature T6For main management temperature, prestored a section temperature T with coke dry quenching furnace5For Added Management temperature, red heat coke is utilized
For thermal source, N2For heat transfer carrier, at last most coke dry quenching boiler inlet temperature T6It is increased to 960 DEG C, coke dry quenching furnace prestores a section temperature T5
It is increased to 1050 DEG C.The high temperature N come out from coke dry quenching furnace2Boiler is sent into after disposable dust remover dedusting and carries out heat exchange reduction temperature
Spend, then coke dry quenching furnace is blasted by circulating fan after secondary filter dedusting and recycle.
Thrown into coke dry quenching furnace during red burnt baker, open the N of coke dry quenching furnace entrance2It is filled with valve continuous logical into coke dry quenching furnace
Enter nitrogen, CO contents are in 0~6%, H in control cycle gas composition2Content is red burnt from dry within 0~2% safe range
Furnace roof loading is put out, with coke dry quenching boiler inlet temperature T6For main management temperature, prestored a section temperature T with coke dry quenching furnace5For Added Management
Temperature, control coke dry quenching boiler inlet temperature T6With 30 DEG C/h, coke dry quenching furnace prestores a section temperature T5Heated up with 15 DEG C/h.
Embodiment 2
As shown in Fig. 1~5, the furnace drying method after a kind of resistance to material large area replacing of dry quenching system comprises the following steps：
Step one：Warm air is dried, with coke dry quenching furnace inlet temperature T2For main management temperature, coke dry quenching furnace is prestored a section temperature T5
115 DEG C are raised to by normal temperature, following content is specifically included：
A, to built-in cold Jiao of coke dry quenching furnace so that cold Jiao covers central blast cap.
B, seal part manhole, retain a length of side and be used as baker hole for 400mm square hole.
C, air from disposable dust remover emergency diffusion valve imported into boiler, boiler added using low-pressure steam to air
Heat, makes air be heated up with 12 DEG C/h speed, is heated to 160 DEG C of holdings.
D, the hot-air come out from boiler blasted into coke dry quenching furnace, coke dry quenching furnace is dried, prestore section in drying course
Stress control is in 50-60Pa, until coke dry quenching furnace prestores after a section masonry temperature reaches 115 DEG C and keeps 24h.By Stress control 50~
60Pa is able to ensure that a part of hot-air passes through the coke dry quenching furnace section that prestores and section masonry that prestores is heated, it is ensured that coke dry quenching furnace is pre-
The uniform heating of section refractory material is deposited, the service life of refractory material is extended.
The air discharged from coke dry quenching furnace is delivered to after ground station for dust removal carries out dust removal process by environment dust collect plant and is discharged into
Air, it is to avoid pollute to air.
Step 2：Make and dry coke quenching coal gas baker burner is installed, opened by adjusting disposable dust remover emergency diffusion valve
Degree imports air and helps coke-stove gas to burn baker, is prestored a section temperature T with coke dry quenching furnace5For main management temperature, 600 are risen to
DEG C, it is specific as follows：
E, 5 internal diameter 50mm front ends of making are flanged, the end nozzle dry coke quenching coal gas baker combustion vertical with gas piping
Burner, the dry coke quenching coal gas baker burner includes supervisor 5, and 5 two ends of supervisor are respectively perpendicular the front end and end of setting,
The front end is provided with flange 3, and the end is provided with nozzle 4, by baker hole by dry coke quenching coal gas baker burner end nozzle 4
It is positioned over above the central coke of coke dry quenching furnace and fixes, front end is connected with coke-stove gas supervisor 1 by flange 3.The dry coke quenching coal gas dries
Burner makes simple, and installation need not use crane with dismounting operation, facilitate installing/dismounting, when coal gas baker terminates
After can quickly remove, it is to avoid the take-down time is long, and the resistance to material cooling of coke dry quenching furnace is excessive.
F, startup circulating fan, are run with minimum speed, open disposable dust remover emergency diffusion valve, it is ensured that sufficient air
Import in coke dry quenching furnace.
G, to each section of dry coke quenching coal gas baker burner progress N2Lighted a fire after displacement and the flow tune that slowly turns on the gas-fire
Valve 2 is saved, by the flow of gas flow governor valve control coke-stove gas and the rotating speed of circulating fan is adjusted after lighting and once removes
Dirt device emergency diffusion valve opening controls air imbibed quantity, coke dry quenching furnace masonry is heated up with 5 DEG C/h, until the furnace temperature of coke dry quenching furnace
Rise to 600 DEG C.Waste gas after burning, partly diffuses from furnace roof and is delivered to through environment dust collect plant at ground station for dust removal progress dedusting
Be discharged into air after reason, another part after disposable dust remover dust removal process with air mixing preheated air, then by this portion gas
Boiler heating is sent into, this portion gas come out from boiler blasts dry put out after secondary filter dust removal process by circulating fan
Stove helps coke-stove gas to burn.
Step 3：Dry coke quenching coal gas baker burner is quickly removed, disposable dust remover emergency diffusion is closed in closing baker hole
Valve, uses N2To coke dry quenching furnace carry out gas displacement, to oxygen content≤5% it is qualified after, red burnt baker is thrown into coke dry quenching furnace, is put out with dry
Burnt boiler inlet temperature T6For main management temperature, prestored a section temperature T with coke dry quenching furnace5For Added Management temperature, red heat coke is utilized
For thermal source, N2For heat transfer carrier, at last most coke dry quenching boiler inlet temperature T6It is increased to 950 DEG C, coke dry quenching furnace prestores a section temperature T5
It is increased to 1000 DEG C.The high temperature N come out from coke dry quenching furnace2Boiler is sent into after disposable dust remover dedusting and carries out heat exchange reduction temperature
Spend, then coke dry quenching furnace is blasted by circulating fan after secondary filter dedusting and recycle.
Thrown into coke dry quenching furnace during red burnt baker, open the N of coke dry quenching furnace entrance2It is filled with valve continuous logical into coke dry quenching furnace
Enter nitrogen, CO contents are in 0~6%, H in control cycle gas composition2Content is red burnt from dry within 0~2% safe range
Furnace roof loading is put out, with coke dry quenching boiler inlet temperature T6For main management temperature, prestored a section temperature T with coke dry quenching furnace5For Added Management
Temperature, control coke dry quenching boiler inlet temperature T6With 30 DEG C/h, coke dry quenching furnace prestores a section temperature T5Heated up with 15 DEG C/h.
Embodiment 3
As shown in Fig. 1~5, the furnace drying method after a kind of resistance to material large area replacing of dry quenching system comprises the following steps：
Step one：Warm air is dried, with coke dry quenching furnace inlet temperature T2For main management temperature, coke dry quenching furnace is prestored a section temperature T5
110 DEG C are raised to by normal temperature, following content is specifically included：
A, to built-in cold Jiao of coke dry quenching furnace so that cold Jiao covers central blast cap.
B, seal part manhole, retain a length of side and be used as baker hole for 300mm square hole.
C, air from disposable dust remover emergency diffusion valve imported into boiler, boiler added using low-pressure steam to air
Heat, makes air be heated up with 12 DEG C/h speed, is heated to 170 DEG C of holdings.
D, the hot-air come out from boiler blasted into coke dry quenching furnace, coke dry quenching furnace is dried, prestore section in drying course
Stress control is in 40-50Pa, until coke dry quenching furnace prestores after a section masonry temperature reaches 110 DEG C and keeps 24h.By Stress control 40~
50Pa is able to ensure that a part of hot-air passes through the coke dry quenching furnace section that prestores and section masonry that prestores is heated, it is ensured that coke dry quenching furnace is pre-
The uniform heating of section refractory material is deposited, the service life of refractory material is extended.
The air discharged from coke dry quenching furnace is delivered to after ground station for dust removal carries out dust removal process by environment dust collect plant and is discharged into
Air, it is to avoid pollute to air.
Step 2：Make and dry coke quenching coal gas baker burner is installed, opened by adjusting disposable dust remover emergency diffusion valve
Degree imports air and helps coke-stove gas to burn baker, is prestored a section temperature T with coke dry quenching furnace5For main management temperature, 550 are risen to
DEG C, it is specific as follows：
E, 4 internal diameter 50mm front ends of making are flanged, the end nozzle dry coke quenching coal gas baker combustion vertical with gas piping
Burner, the dry coke quenching coal gas baker burner includes supervisor 5, and 5 two ends of supervisor are respectively perpendicular the front end and end of setting,
The front end is provided with flange 3, and the end is provided with nozzle 4, by baker hole by dry coke quenching coal gas baker burner end nozzle 4
It is positioned over above the central coke of coke dry quenching furnace and fixes, front end is connected with coke-stove gas supervisor 1 by flange 3.The dry coke quenching coal gas dries
Burner makes simple, and installation need not use crane with dismounting operation, facilitate installing/dismounting, when coal gas baker terminates
After can quickly remove, it is to avoid the take-down time is long, and the resistance to material cooling of coke dry quenching furnace is excessive.
F, startup circulating fan, are run with minimum speed, open disposable dust remover emergency diffusion valve, it is ensured that sufficient air
Import in coke dry quenching furnace.
G, to each section of dry coke quenching coal gas baker burner progress N2Lighted a fire after displacement and the flow tune that slowly turns on the gas-fire
Valve 2 is saved, by the flow of gas flow governor valve control coke-stove gas and the rotating speed of circulating fan is adjusted after lighting and once removes
Dirt device emergency diffusion valve opening controls air imbibed quantity, coke dry quenching furnace masonry is heated up with 5 DEG C/h, until the furnace temperature of coke dry quenching furnace
Rise to 550 DEG C.Waste gas after burning, partly diffuses from furnace roof and is delivered to through environment dust collect plant at ground station for dust removal progress dedusting
Be discharged into air after reason, another part after disposable dust remover dust removal process with air mixing preheated air, then by this portion gas
Boiler heating is sent into, this portion gas come out from boiler blasts dry put out after secondary filter dust removal process by circulating fan
Stove helps coke-stove gas to burn.
Step 3：Dry coke quenching coal gas baker burner is quickly removed, disposable dust remover emergency diffusion is closed in closing baker hole
Valve, uses N2To coke dry quenching furnace carry out gas displacement, to oxygen content≤5% it is qualified after, red burnt baker is thrown into coke dry quenching furnace, is put out with dry
Burnt boiler inlet temperature T6For main management temperature, prestored a section temperature T with coke dry quenching furnace5For Added Management temperature, red heat coke is utilized
For thermal source, N2For heat transfer carrier, at last most coke dry quenching boiler inlet temperature T6It is increased to 920 DEG C, coke dry quenching furnace prestores a section temperature T5
It is increased to 960 DEG C.The high temperature N come out from coke dry quenching furnace2Boiler is sent into after disposable dust remover dedusting and carries out heat exchange reduction temperature,
Coke dry quenching furnace is blasted by circulating fan after secondary filter dedusting again to recycle.
Thrown into coke dry quenching furnace during red burnt baker, open the N of coke dry quenching furnace entrance2It is filled with valve continuous logical into coke dry quenching furnace
Enter nitrogen, CO contents are in 0~6%, H in control cycle gas composition2Content is red burnt from dry within 0~2% safe range
Furnace roof loading is put out, with coke dry quenching boiler inlet temperature T6For main management temperature, prestored a section temperature T with coke dry quenching furnace5For Added Management
Temperature, control coke dry quenching boiler inlet temperature T6With 30 DEG C/h, coke dry quenching furnace prestores a section temperature T5Heated up with 15 DEG C/h.
Embodiment 4
As shown in Fig. 1~5, the furnace drying method after a kind of resistance to material large area replacing of dry quenching system comprises the following steps：
Step one：Warm air is dried, with coke dry quenching furnace inlet temperature T2For main management temperature, coke dry quenching furnace is prestored a section temperature T5
105 DEG C are raised to by normal temperature, following content is specifically included：
A, to built-in cold Jiao of coke dry quenching furnace so that cold Jiao covers central blast cap.
B, seal part manhole, retain a length of side and be used as baker hole for 300mm square hole.
C, air from disposable dust remover emergency diffusion valve imported into boiler, boiler added using low-pressure steam to air
Heat, makes air be heated up with 13 DEG C/h speed, is heated to 168 DEG C of holdings.
D, the hot-air come out from boiler blasted into coke dry quenching furnace, coke dry quenching furnace is dried, prestore section in drying course
Stress control is in 40-50Pa, until coke dry quenching furnace prestores after a section masonry temperature reaches 105 DEG C and keeps 24h.By Stress control 40~
50Pa is able to ensure that a part of hot-air passes through the coke dry quenching furnace section that prestores and section masonry that prestores is heated, it is ensured that coke dry quenching furnace is pre-
The uniform heating of section refractory material is deposited, the service life of refractory material is extended.
The air discharged from coke dry quenching furnace is delivered to after ground station for dust removal carries out dust removal process by environment dust collect plant and is discharged into
Air, it is to avoid pollute to air.
Step 2：Make and dry coke quenching coal gas baker burner is installed, opened by adjusting disposable dust remover emergency diffusion valve
Degree imports air and helps coke-stove gas to burn baker, is prestored a section temperature T with coke dry quenching furnace5For main management temperature, 500 are risen to
DEG C, it is specific as follows：
E, 4 internal diameter 50mm front ends of making are flanged, the end nozzle dry coke quenching coal gas baker combustion vertical with gas piping
Burner, the dry coke quenching coal gas baker burner includes supervisor 5, and 5 two ends of supervisor are respectively perpendicular the front end and end of setting,
The front end is provided with flange 3, and the end is provided with nozzle 4, by baker hole by dry coke quenching coal gas baker burner end nozzle 4
It is positioned over above the central coke of coke dry quenching furnace and fixes, front end is connected with coke-stove gas supervisor 1 by flange 3.The dry coke quenching coal gas dries
Burner makes simple, and installation need not use crane with dismounting operation, facilitate installing/dismounting, when coal gas baker terminates
After can quickly remove, it is to avoid the take-down time is long, and the resistance to material cooling of coke dry quenching furnace is excessive.
F, startup circulating fan, are run with minimum speed, open disposable dust remover emergency diffusion valve, it is ensured that sufficient air
Import in coke dry quenching furnace.
G, to each section of dry coke quenching coal gas baker burner progress N2Lighted a fire after displacement and the flow tune that slowly turns on the gas-fire
Valve 2 is saved, by the flow of gas flow governor valve control coke-stove gas and the rotating speed of circulating fan is adjusted after lighting and once removes
Dirt device emergency diffusion valve opening controls air imbibed quantity, coke dry quenching furnace masonry is heated up with 5 DEG C/h, until the furnace temperature of coke dry quenching furnace
Rise to 500 DEG C.Waste gas after burning, partly diffuses from furnace roof and is delivered to through environment dust collect plant at ground station for dust removal progress dedusting
Be discharged into air after reason, another part after disposable dust remover dust removal process with air mixing preheated air, then by this portion gas
Boiler heating is sent into, this portion gas come out from boiler blasts dry put out after secondary filter dust removal process by circulating fan
Stove.
Step 3：Dry coke quenching coal gas baker burner is quickly removed, disposable dust remover emergency diffusion is closed in closing baker hole
Valve, uses N2To coke dry quenching furnace carry out gas displacement, to oxygen content≤5% it is qualified after, red burnt baker is thrown into coke dry quenching furnace, is put out with dry
Burnt boiler inlet temperature T6For main management temperature, prestored a section temperature T with coke dry quenching furnace5For Added Management temperature, red heat coke is utilized
For thermal source, N2For heat transfer carrier, at last most coke dry quenching boiler inlet temperature T6It is increased to 900 DEG C, coke dry quenching furnace prestores a section temperature T5
It is increased to 950 DEG C.The high temperature N come out from coke dry quenching furnace2Boiler is sent into after disposable dust remover dedusting and carries out heat exchange reduction temperature,
Coke dry quenching furnace is blasted by circulating fan after secondary filter dedusting again to recycle.
Thrown into coke dry quenching furnace during red burnt baker, open the N of coke dry quenching furnace entrance2It is filled with valve continuous logical into coke dry quenching furnace
Enter nitrogen, CO contents are in 0~6%, H in control cycle gas composition2Content is red burnt from dry within 0~2% safe range
Furnace roof loading is put out, with coke dry quenching boiler inlet temperature T6For main management temperature, prestored a section temperature T with coke dry quenching furnace5For Added Management
Temperature, control coke dry quenching boiler inlet temperature T6With 30 DEG C/h, coke dry quenching furnace prestores a section temperature T5Heated up with 15 DEG C/h.
Embodiment 5
As shown in Fig. 1~5, the furnace drying method after a kind of resistance to material large area replacing of dry quenching system comprises the following steps：
Step one：Warm air is dried, with coke dry quenching furnace inlet temperature T2For main management temperature, coke dry quenching furnace is prestored a section temperature T5
100 DEG C are raised to by normal temperature, following content is specifically included：
A, to built-in cold Jiao of coke dry quenching furnace so that cold Jiao covers central blast cap.
B, seal part manhole, retain a length of side and be used as baker hole for 300mm square hole.
C, air from disposable dust remover emergency diffusion valve imported into boiler, boiler added using low-pressure steam to air
Heat, makes air be heated up with 15 DEG C/h speed, is heated to 162 DEG C of holdings.
D, the hot-air come out from boiler blasted into coke dry quenching furnace, coke dry quenching furnace is dried, prestore section in drying course
Stress control is in 30-40Pa, until coke dry quenching furnace prestores after a section masonry temperature reaches 100 DEG C and keeps 24h.By Stress control 30~
40Pa is able to ensure that a part of hot-air passes through the coke dry quenching furnace section that prestores and section masonry that prestores is heated, it is ensured that coke dry quenching furnace is pre-
The uniform heating of section refractory material is deposited, the service life of refractory material is extended.
The air discharged from coke dry quenching furnace is delivered to after ground station for dust removal carries out dust removal process by environment dust collect plant and is discharged into
Air, it is to avoid pollute to air.
Step 2：Make and dry coke quenching coal gas baker burner is installed, opened by adjusting disposable dust remover emergency diffusion valve
Degree imports air and helps coke-stove gas to burn baker, is prestored a section temperature T with coke dry quenching furnace5For main management temperature, 500 are risen to
DEG C, it is specific as follows：
E, 3 internal diameter 50mm front ends of making are flanged, the end nozzle dry coke quenching coal gas baker combustion vertical with gas piping
Burner, the dry coke quenching coal gas baker burner includes supervisor 5, and 5 two ends of supervisor are respectively perpendicular the front end and end of setting,
The front end is provided with flange 3, and the end is provided with nozzle 4, by baker hole by dry coke quenching coal gas baker burner end nozzle 4
It is positioned over above the central coke of coke dry quenching furnace and fixes, front end is connected with coke-stove gas supervisor 1 by flange 3.The dry coke quenching coal gas dries
Burner makes simple, and installation need not use crane with dismounting operation, facilitate installing/dismounting, when coal gas baker terminates
After can quickly remove, it is to avoid the take-down time is long, and the resistance to material cooling of coke dry quenching furnace is excessive.
F, startup circulating fan, are run with minimum speed, open disposable dust remover emergency diffusion valve, it is ensured that sufficient air
Import in coke dry quenching furnace.
G, to each section of dry coke quenching coal gas baker burner progress N2Lighted a fire after displacement and the flow tune that slowly turns on the gas-fire
Valve 2 is saved, by the flow of gas flow governor valve control coke-stove gas and the rotating speed of circulating fan is adjusted after lighting and once removes
Dirt device emergency diffusion valve opening controls air imbibed quantity, coke dry quenching furnace masonry is heated up with 5 DEG C/h, until the furnace temperature of coke dry quenching furnace
Rise to 500 DEG C.Waste gas after burning, partly diffuses from furnace roof and is delivered to through environment dust collect plant at ground station for dust removal progress dedusting
Be discharged into air after reason, another part after disposable dust remover dust removal process with air mixing preheated air, then by this portion gas
Boiler heating is sent into, this portion gas come out from boiler blasts dry put out after secondary filter dust removal process by circulating fan
Stove.
Step 3：Dry coke quenching coal gas baker burner is quickly removed, disposable dust remover emergency diffusion is closed in closing baker hole
Valve, uses N2To coke dry quenching furnace carry out gas displacement, to oxygen content≤5% it is qualified after, red burnt baker is thrown into coke dry quenching furnace, is put out with dry
Burnt boiler inlet temperature T6For main management temperature, prestored a section temperature T with coke dry quenching furnace5For Added Management temperature, red heat coke is utilized
For thermal source, N2For heat transfer carrier, at last most coke dry quenching boiler inlet temperature T6It is increased to 880 DEG C, coke dry quenching furnace prestores a section temperature T5
It is increased to 920 DEG C.The high temperature N come out from coke dry quenching furnace2Boiler is sent into after disposable dust remover dedusting and carries out heat exchange reduction temperature,
Coke dry quenching furnace is blasted by circulating fan after secondary filter dedusting again to recycle.
Thrown into coke dry quenching furnace during red burnt baker, open the N of coke dry quenching furnace entrance2It is filled with valve continuous logical into coke dry quenching furnace
Enter nitrogen, CO contents are in 0~6%, H in control cycle gas composition2Content is red burnt from dry within 0~2% safe range
Furnace roof loading is put out, with coke dry quenching boiler inlet temperature T6For main management temperature, prestored a section temperature T with coke dry quenching furnace5For Added Management
Temperature, control coke dry quenching boiler inlet temperature T6With 30 DEG C/h, coke dry quenching furnace prestores a section temperature T5Heated up with 15 DEG C/h.
Embodiment 6
The present embodiment and the difference of embodiment 1 are：
1st, in the process g of the step 2, coke dry quenching furnace masonry is the speed heating with 4.8 DEG C/h, until furnace temperature rises to 580
℃；
2nd, in step 3, coke dry quenching boiler inlet temperature T6860 DEG C are warming up to 25 DEG C/h speed, and coke dry quenching furnace prestores section
Temperature T5900 DEG C are warming up to 14 DEG C/h speed.
Embodiment 7
The present embodiment and the difference of embodiment 1 are：
1st, in the process g of the step 2, coke dry quenching furnace masonry is the speed heating with 4.5 DEG C/h, until furnace temperature rises to 560
℃；
2nd, in step 3, coke dry quenching boiler inlet temperature T6840 DEG C are warming up to 25 DEG C/h speed, and coke dry quenching furnace prestores section
Temperature T5880 DEG C are warming up to 13 DEG C/h speed.
Embodiment 8
The present embodiment and the difference of embodiment 1 are：
1st, in the process g of the step 2, coke dry quenching furnace masonry is the speed heating with 4.2 DEG C/h, until furnace temperature rises to 530
℃；
2nd, in step 3, coke dry quenching boiler inlet temperature T6820 DEG C are warming up to 22 DEG C/h speed, and coke dry quenching furnace prestores section
Temperature T5840 DEG C are warming up to 12 DEG C/h speed.
Embodiment 9
The present embodiment and the difference of embodiment one are：
1st, in the process g of the step 2, coke dry quenching furnace masonry is the speed heating with 4 DEG C/h, until furnace temperature rises to 540
℃；
2nd, in step 3, coke dry quenching boiler inlet temperature T6800 DEG C are warming up to 20 DEG C/h speed, and coke dry quenching furnace prestores section
Temperature T5800 DEG C are warming up to 10 DEG C/h speed.
It is noted that above-described embodiment is to the illustrative and not limiting of technical solution of the present invention, art is general
The equivalent substitution of logical technical staff or the other modifications made according to prior art, as long as not exceeding technical solution of the present invention
Thinking and scope, should be included within interest field of the presently claimed invention.
Claims (9)
1. the furnace drying method after a kind of resistance to material large area replacing of dry quenching system, it is characterised in that comprise the following steps：
Step one：Warm air is dried, with coke dry quenching furnace inlet temperature T2For main management temperature, the temperature T for section that coke dry quenching furnace is prestored5By
Normal temperature is raised to 100 DEG C ~ 120 DEG C；
Step 2：The dry coke quenching coal gas baker burner of installation 3 ~ 5, is led by adjusting disposable dust remover emergency diffusion valve opening
Entering air helps coke-stove gas to burn baker, is prestored a section temperature T with the coke dry quenching furnace5For main management temperature, 500 DEG C are risen to
~600℃；
Step 3：Dry coke quenching coal gas baker burner is quickly removed, closing baker hole is closed the disposable dust remover and promptly put
Valve is dissipated, N is used2Gas displacement is carried out to coke dry quenching furnace, until O2Content reaches less than 5%, and red burnt baker is thrown into the coke dry quenching furnace, with
Coke dry quenching boiler inlet temperature T6For main management temperature, prestored a section temperature T with the coke dry quenching furnace5For Added Management temperature, finally
By the coke dry quenching boiler inlet temperature T6It is increased to 800 DEG C ~ 960 DEG C, the coke dry quenching furnace prestores a section temperature T5Be increased to 800 DEG C ~
1050℃。
2. the furnace drying method after the resistance to material large area replacing of a kind of dry quenching system according to claim 1, it is characterised in that
Dry coke quenching coal gas baker burner in the step 2 includes supervisor, and supervisor two ends are respectively perpendicular the front end and end of setting
End, the front end is provided with flange, and the end is provided with nozzle.
3. the furnace drying method after the resistance to material large area replacing of a kind of dry quenching system according to claim 1 or 2, its feature exists
In the internal diameter of the dry coke quenching coal gas baker burner is 50mm.
4. the furnace drying method after the resistance to material large area replacing of a kind of dry quenching system according to claim 2, it is characterised in that
The nozzle of the dry coke quenching coal gas baker burner is positioned over above the central coke of coke dry quenching furnace by the baker hole and fixed, described
The front end of dry coke quenching coal gas baker burner is connected with coke-stove gas supervisor by flange.
5. the furnace drying method after the resistance to material large area replacing of a kind of dry quenching system according to claim 1, it is characterised in that
Baker hole in the step 3 is the square hole that the length of side retained after people's bore portion is sealed is 300 mm ~ 400mm.
6. the furnace drying method after the resistance to material large area replacing of a kind of dry quenching system according to claim 1, it is characterised in that
A section temperature T that coke dry quenching furnace prestores in the step one5The method for being raised to 100 DEG C ~ 120 DEG C by normal temperature is as follows：
A, to built-in cold Jiao of the coke dry quenching furnace so that cold Jiao covers central blast cap；
B, by air from the disposable dust remover emergency diffusion valve import boiler, the boiler using low-pressure steam to air progress
Heating, is heated to 160-170 DEG C of holding；
C, the hot-air come out from the boiler blasted into the coke dry quenching furnace, the coke dry quenching furnace is dried, in drying course
The coke dry quenching furnace prestore section Stress control in 30-60Pa, until the coke dry quenching furnace section masonry temperature that prestores is reached after 100 DEG C ~ 120 DEG C
Keep 24h.
7. the furnace drying method after the resistance to material large area replacing of a kind of dry quenching system according to claim 6, it is characterised in that
The boiler is heated using low-pressure steam to air, and the air is heated up according to 10 DEG C/h ~ 15 DEG C/h speed.
8. the furnace drying method after the resistance to material large area replacing of a kind of dry quenching system according to claim 1, it is characterised in that
Air is imported in the step 2 helps the method for coke-stove gas burning baker as follows：
Start circulating fan, run with minimum speed, open the disposable dust remover emergency diffusion valve, it is ensured that sufficient air is led
Enter in the coke dry quenching furnace；
To described each section of progress N of dry coke quenching coal gas baker burner2Lighted a fire and the flow control valve that turns on the gas-fire, controlled after displacement
Coke gas flow processed simultaneously adjusts the circulating fan rotating speed control air imbibed quantity, makes coke dry quenching furnace masonry with 4 DEG C/h ~ 5 DEG C/h
Heated up, until furnace temperature rises to 500 DEG C ~ 600 DEG C.
9. the furnace drying method after the resistance to material large area replacing of a kind of dry quenching system according to claim 1, it is characterised in that
Coke dry quenching boiler inlet temperature T in the step 36Prestored a section temperature T with the coke dry quenching furnace5Programming rate respectively according to T6≤
30℃/h、T5≤ 15 DEG C/h is heated up.
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| CN108624339A (en) * | 2018-05-11 | 2018-10-09 | 鞍钢股份有限公司 | Winter dry quenching furnace annual repair heat preservation method |
| CN108709413A (en) * | 2018-05-24 | 2018-10-26 | 山东钢铁集团日照有限公司 | A method of dry coke quenching warm air is carried out using combustion gas furnace and dries baker |
| CN110452717A (en) * | 2019-08-05 | 2019-11-15 | 中冶焦耐(大连)工程技术有限公司 | A kind of method and system for distributing comprehensive treatment coking tail gas rationally |
| CN113736494A (en) * | 2020-05-29 | 2021-12-03 | 宝山钢铁股份有限公司 | Coke oven gas collecting pipe voltage stabilization adjusting method |
| CN114736697A (en) * | 2022-04-13 | 2022-07-12 | 山东四化环保节能工程有限公司 | Heating method of dry quenching furnace |
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| CN108624339A (en) * | 2018-05-11 | 2018-10-09 | 鞍钢股份有限公司 | Winter dry quenching furnace annual repair heat preservation method |
| CN108624339B (en) * | 2018-05-11 | 2020-09-29 | 鞍钢股份有限公司 | Winter dry quenching furnace annual repair heat preservation method |
| CN108709413A (en) * | 2018-05-24 | 2018-10-26 | 山东钢铁集团日照有限公司 | A method of dry coke quenching warm air is carried out using combustion gas furnace and dries baker |
| CN108709413B (en) * | 2018-05-24 | 2020-06-30 | 山东钢铁集团日照有限公司 | Method for dry quenching coke warm air drying oven by adopting flue gas oven |
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| CN113736494A (en) * | 2020-05-29 | 2021-12-03 | 宝山钢铁股份有限公司 | Coke oven gas collecting pipe voltage stabilization adjusting method |
| CN114736697A (en) * | 2022-04-13 | 2022-07-12 | 山东四化环保节能工程有限公司 | Heating method of dry quenching furnace |
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