CN101928573A - Test run method of dry quenching mechanical equipment - Google Patents
Test run method of dry quenching mechanical equipment Download PDFInfo
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- CN101928573A CN101928573A CN2009100534879A CN200910053487A CN101928573A CN 101928573 A CN101928573 A CN 101928573A CN 2009100534879 A CN2009100534879 A CN 2009100534879A CN 200910053487 A CN200910053487 A CN 200910053487A CN 101928573 A CN101928573 A CN 101928573A
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Abstract
The invention belongs to the filed of debugging methods of metallurgical equipment, and particularly relates to a test run method of dry quenching mechanical equipment. The test run method of the dry quenching mechanical equipment comprises the following steps of: A. test run of a charging system; B. test run of a discharging system; C. test run of a circulating fan; D. test run of a boiler system; and E. airtight test of a dry quenching full system. The test run method passes the installation and detection standard of strict design specifications and has the advantages of simple debugging method, safety and reliability and high operation efficiency.
Description
Technical field
The present invention relates to metallurgical equipment adjustment method field, be specially a kind of test run method of dry quenching mechanical equipment.
Background technology
Dry quenching(of coke) is that new in the world at present of being born smelts power-saving technology, and its English name is Coke Dry Quenching, is called for short CDQ.Dry coke quenching is to be thermal barrier with circulated inert gas, discharges below by recirculation blower cold recycle gas being imported red burnt cooling room cooling down high-temperature coke to 250 ℃.Cycling hot conductance behind the absorption coke heat is gone into waste heat boiler and is reclaimed heat, produces steam.After recycle gas cooling, the dedusting, return cooling room through blower fan again, so red Jiao of circulation cooling.The steam that coke dry quenching boiler produces or incorporate factory's internal steam pipe net into or send to generating.Dry Quenching Technology is great energy-conservation project, owing in closed system, finish the quenching process, compares with common coke wet quenching, but basically eliminate phenol, HCN, H
2S, NH
3Discharging, reduce the discharging of burnt dirt, and save the quenching water.Dry coke quenching auxiliary mainly by red burnt delivery system, pack into, burnt system of discharge system, boiler systems, gas-circulating system, fortune, dust-removal system etc. form.Dry coke quenching auxiliary has " three is electrical integrated " degree height because of the singularity of its technological process of production and specific function, does not allow frequent start-stop stove, security reliability requirement height when playing the action system work of forming a connecting link in the coking production process.Therefore, dry coke quenching auxiliary is quite high to stability, the reliability requirement of total system operation, and then also high to mechanical means trial trip specification of quality.Because Dry Quenching Technology belongs to emerging field, only there is enterprise of the man a few family of very few number in the unit of domestic this method of employing, also is in the stage of fumbling for the trial trip of dry quenching mechanical equipment, exists much not science, irrational place, trial trip process complexity.
Summary of the invention
In order to overcome the defective of prior art, a kind of safe and reliable metallurgical equipment adjustment method is provided, the invention discloses a kind of test run method of dry quenching mechanical equipment.
The present invention reaches goal of the invention by following technical solution:
A kind of test run method of dry quenching mechanical equipment, carry out successively according to following steps: the A. system's trial trip of packing into, B. discharge system's trial trip, C. recirculation blower trial trip, D. boiler systems trial trip and E. dry coke quenching total system gas-tightness test, wherein, A. the system of packing into trial trip is according to a. electric locomotive-coke tank truck-automatic contraposition device trial trip, b. lift trial trip and the trial trip of c. charging apparatus are carried out successively, B. discharging system's trial trip carries out successively according to zero load trial trip of a. discharger and the cold burnt test of b. row, D. the boiler systems trial trip is according to a. boiler systems trial trip flow process, b. trial trip of boiler systems pump water and associated conduit flushing, c. the debugging of steam tightness test and d. safety valve is carried out successively, it is characterized in that:
During a. electric locomotive-coke tank truck in the system of A. packing into the trial trip-automatic contraposition device trial trip, accurately adjust the rest position precision of burnt jar of rotation, accurately adjust the size that coke tank truck is connected with automatic contraposition device, coke guide, accurately adjust the position of traveling, action limit switch, b. during the lift trial trip, after finishing, the zero load single examination of lift carries out the empty burnt jar test run of lift band, c. the charging apparatus trial trip comprises zero load list examination of charging apparatus and charging apparatus PLC interlock trial trip, and charging apparatus PLC interlock trial trip finishes in burnt jar, the independent test run of lift; Clean out around lift, the charging apparatus; Absolute altitude and the position of confirming burnt jar bearing meet the illustrated dimensions requirement; Confirm that the lift adjustment finishes, burnt jar center is consistent with the dried stove center of putting out; The affirmation coke tank bottom door is opened analyzer and is installed correct position; After finishing, butterfly valve debugging on the control of dust pipeline carries out, B. discharging in system's trial trip the cold burnt test of b. row comprises and adorns cold Jiao and trial trip, adorn the burnt amount of cold burnt fashionable dress and be as the criterion, during trial trip, the amplitude instruction signal of vibratory feeder is set for minimum value to surpass quenching groove upper limit position; The coke that observation is discharged through two trouble chutes during the vibratory feeder coke discharging drops on the position on the conveyor drive, and the blanking on two trouble chutes is adjusted plate adjust, and after the trial trip end, all device stops, and closeall inspection window,
D. in the boiler systems trial trip, when b. trial trip of boiler systems pump water and associated conduit are washed, the trial trip of boiler systems pump water installs at the pump water inlet pipe and water outlet pipe, purge is clean, possessed the condition that supplies water to water pump continuously, there is tensimeter in pump outlet portion, multistage high pressure centrifugal pump has unimpeded return water pipe and height, the closed tube of low-pressure cavity, the water pump that does not form complete Production Flow Chart has the ditch of confessing water continuous blow-down, pond or groove jar are accommodated water pump water outlet, turning to turning to of pump of driving machine conforms to, manually jiggering does not have jam, carry out after the no abnormal phenomenon, during the trial trip of boiler systems pump water, standard-sized sheet water intaking valve before starting, the full cut-off outlet valve, drain in the pump housing and air or other gas in the water inlet segment, after startup reaches specified speed and rated pressure, slowly open outlet valve, detect current of electric, pressure gauge reading and bearing temperature, stage pump balancing drum chamber and low-pressure cavity closed tube are unimpeded, crack return water pipe valve before starting, c. during steam tightness test, when boiler startup boosted to 0.3MPa～0.5MPa, to carry out heat under hot state fastening with hitting the joint bolt of spanner to each pressure-containing member.
Described test run method of dry quenching mechanical equipment, it is characterized in that: in the trial trip of D. boiler systems during the c. steam tightness test, carry out the superheated vapour leak test, inspection method is to use 480～610 to be the head of the active new spanner of 18 "～24 ", on flanged seam, slowly drag, if the bright metal face deepening of active new spanner nebulizes, then deepening place of active new spanner must steam leakage.
The present invention is by the installation and the detection reference of strict design specifications, and adjustment method is simple, and is safe and reliable, the operating efficiency height.
Description of drawings
Fig. 1 is the dry coke quenching system's trial trip schema of packing among the present invention;
Fig. 2 is a PLC combined operation schema among the present invention;
Fig. 3 is a boiler systems trial trip schema among the present invention;
Fig. 4 is a pump trial trip schema among the present invention.
Embodiment
Below further specify the present invention by specific embodiment.
Embodiment 1
A kind of test run method of dry quenching mechanical equipment, carry out successively according to following steps: the A. system's trial trip of packing into, B. discharge system's trial trip, C. recirculation blower trial trip, D. boiler systems trial trip and E. dry coke quenching total system gas-tightness test, wherein, A. the system of packing into trial trip is according to a. electric locomotive-coke tank truck-automatic contraposition device trial trip, b. lift trial trip and the trial trip of c. charging apparatus are carried out successively, B. discharge system's trial trip and carry out successively according to zero load trial trip of a. discharger and the cold burnt test of b. row, the trial trip of D. boiler systems is according to a. boiler systems trial trip flow process, b. trial trip of boiler systems pump water and associated conduit flushing, c. the debugging of steam tightness test and d. safety valve is carried out successively.Finish following preparation of construction before the trial trip earlier:
1. technology is prepared
(1) installation of each equipment of dry coke quenching auxiliary, working instructions are complete.
(2) dry coke quenching auxiliary trial trip scheme and trial trip recorder are worked out and are examined and finish.
(3) engineering technical personnel fully are familiar with " the trial trip scheme " of relevant drawing, design, equipment and technology file, construction inspection rules and approved, the structure of understanding equipment and performance, the schedule of operation of grasp equipment, working method and safety regulations, and confide a technological secret and safety is told somebody what one's real intentions are to the operating personnel by the requirement of above technical publications.
2. should possess following condition before the equipment shakedown:
(1) installation work before the equipment shakedown finishes, and examination finishes on inspection;
(2) auxiliary equipments such as hydraulic pressure, lubricated, cooling, water, gas (vapour), electric, instrument control all finish by system check, and should meet the requirement of trial trip;
(3) equipment has been carried out in accordance with regulations cleaning, inspection, cleaning before the trial trip and the lubricating oil or the lubricating grease of annotated regulatory specifications and quantity;
(4) the equipment surrounding environment is thoroughly cleaned, and the obstacle on the equipment operation road of traveling, lifting, straight reciprocating motion is thoroughly got rid of;
(5) setting completed for the necessary security measures of equipment shakedown, and the safety custody personnel have arranged to put in place.
(6) the required worker's facility of trial trip, instrument, instrument, technical measures material are on deck.
After preparation of construction was finished, the equipment shakedown of quenching machinery can hop to it.Step is as follows:
One, the dry coke quenching system's trial trip of packing into
The dry coke quenching system of packing into mainly is made up of electric locomotive-coke tank truck, automatic contraposition device, lift and charging apparatus.
1. electric locomotive-coke tank truck-automatic contraposition device trial trip
Dry coke quenching is packed system's trial trip schema into as shown in Figure 1, and the trial trip main points are:
(1) accurately adjusts the rest position precision of rotating burnt jar.
(2) accurately adjust the relative dimensions that coke tank truck is connected with automatic contraposition device, coke guide.
(3) accurately adjust the position of limit switches such as traveling, action.
2. lift trial trip
(1) the zero load single examination of lift
Lift trial trip flow process and zero load single method for testing are carried out with reference to the requirement of " coke dry quenching hoister installation exercise instruction " Q/WYJ005-04-2008 and design and equipment and technology file.
(2) the empty burnt jar test run of lift band
1. burnt jar of operation of lift band sky, whether scrutiny and adjustment traveling and volume are gone up (under the volume) limit switch accurate and sensitive;
2. check and adjust the action situation of band-type brake with reference to band-type brake manufactory specification sheets;
3. check the operation and the action situation of each mechanism, suspender etc.;
4. during empty burnt jar of trial trip of lift band, the coke placing door of burnt pot bottom must lock.
(3) lift 100%, 110%, 125% load trial trip
1. lift 100%, 110%, 125% load trial trip is adopted and is carried out through the qualified counterweight of measurement verification, and test mass weight is empty burnt jar, coke jar cover, suspender weight and counterweight weight sum;
2. the trial trip of lift 100%, 110%, 125% load should be carried out in strict accordance with the regulation of " weight handling equipment installation work construction and acceptance specification " GB50278-98 and " lifting machine tentative specification and program " GB5905-86, and should obtain the prison inspection approval of local technical quality superintendent office;
When 3. lift 100%, 110%, 125% was loaded trial trip, the coke placing door of burnt pot bottom must lock;
When 4. lift 100%, 110% was loaded trial trip, upward the action of (under the volume) limit switch, safeguard protection and interlocking gear should be accurately, reliably with volume for scrutiny and adjustment traveling; Check and adjust the action situation of band-type brake; Check the operation and the action situation of each mechanism, suspender etc.;
When 5. lift 125% is loaded trial trip, should detect the main beam of crane amount of deflection;
6. go up (volume down) speed, the precision that stops, net cycle time with reference to design and strict traveling and the volume that detects, adjusts lift of equipment and technology file.
(4) safety notice
1. necessary inspection and the thorough obstacle that moves passage and surrounding environment of removing before each equipment moves, in service must sending someone guarded, checked;
2. must send during initial start up support on special messenger's scrutiny track, guide rail, cable trolley and cable, the main frame, light fixture etc. that no abnormal, collision is arranged,, restart running after the processing of must stopping if any problem.
3. charging apparatus trial trip
(1) the zero load single examination of charging apparatus
(2) charging apparatus PLC interlock trial trip
1. the condition that should possess before the PLC combined operation
A. burnt jar, the independent test run of lift finish;
B. clean out around lift, the charging apparatus;
C. absolute altitude and the position of confirming burnt jar bearing meet the illustrated dimensions requirement;
D. confirm that the lift adjustment finishes, burnt jar center is consistent with the dried stove center of putting out;
E. confirm that coke tank bottom door opens analyzer and install correct position;
F. the debugging of the butterfly valve on the control of dust pipeline finishes.
2. PLC combined operation program
PLC combined operation schema as shown in Figure 2.
Two, discharge system's trial trip
1. the zero load trial trip of discharger
2. arrange cold burnt test
(1) test objective
For guaranteeing the function of motion of discharge system, the burnt system of fortune items of equipment, the upper and lower level gage of examination quenching stove, gamma ray function after the tightness test of dry coke quenching total system finishes, before the installation of baker burner, must be adorned cold Jiao to the quenching stove, carry out the coke discharging test.
(2) precondition of coke discharging test
1. each system device interlock trial trip of dry coke quenching is finished substantially;
2. dry coke quenching total system gas-tightness test is finished;
3. open the inspection window of each several part and be ready to illumination, so that check the discharge situation of coke;
4. weighing belt has been proofreaied and correct and has been finished;
5. required material, worker's facility, equipment, the technical measures of coke discharging test are prepared to put in place.
(3) adorn cold Jiao
Coke discharging test adorn cold burnt operation, generally carry out in two steps, at first adopt manual method to adorn rebasing Jiao, adopt conveyor to adorn cold Jiao then to the quenching stove, ground heap focus can be chosen in the main frame next door.The burnt amount of dress is as the criterion to surpass quenching groove upper limit position, and cold Jiao requires that lumpiness is even, moisture is little, coke breeze is few, and concrete grammar is as follows:
1. with the walkie fork lift truck of manually coke being packed into, be pushed under the main frame, utilize the walkie fork lift truck that windlass and lift maintenance cucurbit will be filled with coke to winch to quenching stove 10m manhole place;
The walkie fork lift truck that 2. will fill with coke pushes from quenching stove 10m manhole, pours coke in the quenching stove, with coke central blast cap is covered and exceeds 200mm～300mm to be as the criterion;
3. after rebasing coke has been adorned, utilize temporarily with moving belt conveyer cold Jiao empty burnt jar of trial trip of packing into, the burnt jar that will fill coke with lift is carried to fire door and is adorned Jiao again.
(4) test run method
1. the amplitude instruction signal of vibratory feeder is set for minimum value;
2. cleaning apparatus running, the dust that produces in the suction coke discharging process;
3. rubber conveyer running;
4. the turnover panel in two trouble chutes is chosen in the adhesive tape pusher side that has turned round;
5. open the flashboard of bulkhgead gate fully, the sequence starting discharger;
6. heighten the amplitude instruction signal gradually, vibratory feeder begins coke discharging.The coke that observation is discharged through two trouble chutes drops on the position on the conveyor drive, and the blanking on two trouble chutes is adjusted plate adjust, and makes the chevron peak of coke build-up consistent with the center of rubber conveyer;
7. move 10 minutes by normal output, maximum throughput, minimum output and middle output respectively, the coke discharging ability of discharger is checked;
8. after trial trip finishes, whole devices should be stopped, and closeall inspection window.
Three, recirculation blower trial trip
Four, boiler systems trial trip
1 boiler systems trial trip schema as shown in Figure 3.
2. trial trip of boiler systems pump water and associated conduit flushing
(1) pump trial trip schema as shown in Figure 4
(2) precondition of pump trial trip
1. the pump water inlet pipe and water outlet pipe must install, and purge is clean, has possessed the condition that supplies water to water pump continuously;
2. must there be tensimeter in pump outlet portion;
3. multistage high pressure centrifugal pump need have the closed tube in unimpeded return water pipe and high and low pressure chamber;
4. the water pump that does not form complete Production Flow Chart must have ditch, pond or the groove jar of confessing water continuous blow-down to accommodate water pump water outlet;
5. turning to turning to of pump of driving machine conforms to;
6. manually jiggering does not have jam, no abnormal phenomenon.
(3) trial trip main points
1. before starting, standard-sized sheet water intaking valve, full cut-off outlet valve, drain in the pump housing and air or other gas in the water inlet segment, can not " inhale sky ", forbid anhydrous " idle running ", forbid that in pump housing gas does not drain or water inlet pipe in running under the state of " gas is arranged " or " air-breathing ".
2. startup reaches specified speed, after the rated pressure, slowly opens outlet valve, detects the requirement that current of electric, pressure gauge reading and bearing temperature etc. meet design and equipment and technology file or national regulation;
3. stage pump balancing drum chamber and low-pressure cavity closed tube must be unimpeded, and crack return water pipe valve before starting can not " full cut-off running ".Turning round, pressure is minimum must not to be lower than 1/2 of rated pressure, forbids " low pressure " continuous operation;
4. water temperature comes into operation after pump more than 50 ℃ (hot water pump or at the pump that turns round under the hot water conditions) is in " STOP " state or maintenance, must take measures before starting fully " warming-up ", " warming-up " time must not be less than 30 minutes, and as time permission, about 1 hour of " warming-up " time is for well.
(4) filler of pump is contained the adjustment main points
1. the filler of pump is contained, i.e. pump housing axle envelope is adjusted when static evenly, degree of tightness is appropriate, water-tight being advisable just.From filler is contained, should there be water to ooze out in the running, be water droplet, but should not becomes line by stream.
2. filler culvert adjustment key is " dynamically adjusting ", and its key points for operation are as follows:
Water (or other liquid) amount of a. oozing out from filler portion in the running excessive (being linear trickling), should be in time, symmetrical, tighten filler evenly, gradually and compress every blue bolt, reduce the infiltration capacity of medium gradually, till meeting the requirements.Initial stage is when turning round.This operation is carried out repeatedly possibly, and this is filler and the essential process of rotating shaft " break-in ", must patience operate subtly;
B. the adjustment process of filler portion seepage, must tight detect stuffing box, every temperature variation (feel detects or some temperature meter detects) and the variation of seepage situation of orchid, if temperature is too high, may press too tightly, must unclamp immediately, strengthen leakage to guarantee rotating shaft and to fill out the heat that lubricated also " taking away " friction in time necessary between culvert produces; As the temperature height, leakage is excessive, must have a power failure to overhaul, and adjusts or change underproof filler;
C. the operation of taking care is strictly on guard against that the coat-sleeve strand goes up rotating shaft, causes fatal accident.
3. steam tightness test
(1) boiler startup when boosting to 0.3～0.5MPa, uses " strike spanner " that the joint bolt (particularly flange bolt) of each pressure-containing member is carried out " heat is fastening " under hot state, to guarantee the tight power of joint bolt.
(2) boiler rises to operating pressure, carries out steam tightness test, and checks following items:
1. the tightness located such as the weld seam of boiler, manhole, hand hole and flange;
2. garniture of boiler and all tightness of vapour, penstock;
3. the expansion situation of the carbonated drink piping in drum, header, each heating surface parts and the boiler scope, with and bearing, suspension rod, suspension bracket and spring stressed, whether displacement and flexible situation normal, and whether overslaugh expansion part is arranged.
(3) inspection method of superheated vapour leakage
Superheated vapour tiny leakage (or initial stage leakage) is that naked eyes are difficult to see, also is difficult to check.Effectively, intuitively, inspection method is a head by 480～610 (18 "～24 ") active new wrench efficiently, on flanged seam, slowly drag, because the temperature difference, the very fast dewfall of winding-up (leakage) superheated vapour on the bright metal face makes its deepening (vaporific), spanner is deepening wherein, and must there be steam leakage at this place.
(4) steam leakage (or high pressure water leakage) must be handled as early as possible, otherwise, leak very fast aggravation, and then blow bad flange face.Treatment process: holding bolt or replacing pad.
4. safety valve debugging
(1) safety valve should be installed after hydraulicboiler test, matting again.Should check, debug (cold conditions or hot debugging) by the safety valve debugging unit that confirms through technical supervision department before installing, and provide the debugging report;
(2) debugging of the heat of safety valve should after steam purge is qualified, be debugged by the professional after boiler is gone into operation, and should have the technical supervision department personnel to participate in, and debugging finishes and should provide the debugging report;
(3) safety valve can no longer be done the heat debugging as in specialty debugging unit (with debugging report) after the heat debugging is qualified after the operation;
(4) safety valve debugging pressure has clearly regulation as the equipment and technology file, must be by its regulation debugging.Otherwise must debug by existing relative national standards regulation;
(5) adjusted safety valve should lock or lead sealing immediately.
Five, dry coke quenching total system gas-tightness test
Claims (2)
1. test run method of dry quenching mechanical equipment, carry out successively according to following steps: the A. system's trial trip of packing into, B. discharge system's trial trip, C. recirculation blower trial trip, D. boiler systems trial trip and E. dry coke quenching total system gas-tightness test, wherein, A. the system of packing into trial trip is according to a. electric locomotive-coke tank truck-automatic contraposition device trial trip, b. lift trial trip and the trial trip of c. charging apparatus are carried out successively, B. discharging system's trial trip carries out successively according to zero load trial trip of a. discharger and the cold burnt test of b. row, D. the boiler systems trial trip is according to a. boiler systems trial trip flow process, b. trial trip of boiler systems pump water and associated conduit flushing, c. the debugging of steam tightness test and d. safety valve is carried out successively, it is characterized in that:
During a. electric locomotive-coke tank truck in the system of A. packing into the trial trip-automatic contraposition device trial trip, accurately adjust the rest position precision of burnt jar of rotation, accurately adjust the size that coke tank truck is connected with automatic contraposition device, coke guide, accurately adjust the position of traveling, action limit switch, b. during the lift trial trip, after finishing, the zero load single examination of lift carries out the empty burnt jar test run of lift band, c. the charging apparatus trial trip comprises zero load list examination of charging apparatus and charging apparatus PLC interlock trial trip, and charging apparatus PLC interlock trial trip finishes in burnt jar, the independent test run of lift; Clean out around lift, the charging apparatus; Absolute altitude and the position of confirming burnt jar bearing meet the illustrated dimensions requirement; Confirm that the lift adjustment finishes, burnt jar center is consistent with the dried stove center of putting out; The affirmation coke tank bottom door is opened analyzer and is installed correct position; After finishing, butterfly valve debugging on the control of dust pipeline carries out, B. discharging in system's trial trip the cold burnt test of b. row comprises and adorns cold Jiao and trial trip, adorn the burnt amount of cold burnt fashionable dress and be as the criterion, during trial trip, the amplitude instruction signal of vibratory feeder is set for minimum value to surpass quenching groove upper limit position; The coke that observation is discharged through two trouble chutes during the vibratory feeder coke discharging drops on the position on the conveyor drive, and the blanking on two trouble chutes is adjusted plate adjust, and after the trial trip end, all device stops, and closeall inspection window,
D. in the boiler systems trial trip, when b. trial trip of boiler systems pump water and associated conduit are washed, the trial trip of boiler systems pump water installs at the pump water inlet pipe and water outlet pipe, purge is clean, possessed the condition that supplies water to water pump continuously, there is tensimeter in pump outlet portion, multistage high pressure centrifugal pump has unimpeded return water pipe and height, the closed tube of low-pressure cavity, the water pump that does not form complete Production Flow Chart has the ditch of confessing water continuous blow-down, pond or groove jar are accommodated water pump water outlet, turning to turning to of pump of driving machine conforms to, manually jiggering does not have jam, carry out after the no abnormal phenomenon, during the trial trip of boiler systems pump water, standard-sized sheet water intaking valve before starting, the full cut-off outlet valve, drain in the pump housing and air or other gas in the water inlet segment, after startup reaches specified speed and rated pressure, slowly open outlet valve, detect current of electric, pressure gauge reading and bearing temperature, stage pump balancing drum chamber and low-pressure cavity closed tube are unimpeded, crack return water pipe valve before starting, c. during steam tightness test, when boiler startup boosted to 0.3MPa～0.5MPa, to carry out heat under hot state fastening with hitting the joint bolt of spanner to each pressure-containing member.
2. test run method of dry quenching mechanical equipment as claimed in claim 1, it is characterized in that: in the trial trip of D. boiler systems during the c. steam tightness test, carry out the superheated vapour leak test, inspection method is to use 480～610 to be the head of the active new spanner of 18 "～24 ", on flanged seam, slowly drag, if the bright metal face deepening of active new spanner nebulizes, then deepening place of active new spanner must steam leakage.
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| CN102495642A (en) * | 2011-12-05 | 2012-06-13 | 济南钢铁股份有限公司 | Dry quenching automatic control system of coke dry quenching furnace and control method thereof |
| CN103468278A (en) * | 2013-07-27 | 2013-12-25 | 姜和信 | Coke-removing device for coke dry quenching |
| CN111575027A (en) * | 2020-04-23 | 2020-08-25 | 包头钢铁（集团）有限责任公司 | Method for comprehensively processing power failure accident of coke dry quenching system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102495642A (en) * | 2011-12-05 | 2012-06-13 | 济南钢铁股份有限公司 | Dry quenching automatic control system of coke dry quenching furnace and control method thereof |
| CN103468278A (en) * | 2013-07-27 | 2013-12-25 | 姜和信 | Coke-removing device for coke dry quenching |
| CN111575027A (en) * | 2020-04-23 | 2020-08-25 | 包头钢铁（集团）有限责任公司 | Method for comprehensively processing power failure accident of coke dry quenching system |
| CN111575027B (en) * | 2020-04-23 | 2021-06-22 | 包头钢铁（集团）有限责任公司 | Method for comprehensively processing power failure accident of coke dry quenching system |
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Application publication date: 20101229 |