CN101928580B - Method for mounting dry quenching circulating fan - Google Patents
Method for mounting dry quenching circulating fan Download PDFInfo
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- CN101928580B CN101928580B CN 200910053486 CN200910053486A CN101928580B CN 101928580 B CN101928580 B CN 101928580B CN 200910053486 CN200910053486 CN 200910053486 CN 200910053486 A CN200910053486 A CN 200910053486A CN 101928580 B CN101928580 B CN 101928580B
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Abstract
The invention relates to the field of metallurgical equipment mounting, in particular to a method for mounting a dry quenching circulating fan. The method sequentially comprises the following steps of: (a) basically checking and accepting; (b) setting foundation bolts and a seat slurry pier device as well as opening a box to check equipment; (c) mounting a fan, a bearing and a motor base; (d) carrying out primary grouting of the foundation bolts of the equipment; (e) mounting a lower bearing block; (f) mounting a lower shell of the fan; (g) mounting a rotor; (h) mounting an upper bearing case cover, an upper slip and a shaft seal; (i) mounting an upper shell of the fan and a shaft seal; (j) mounting the motor; (k) correcting a coupling; (l) mounting an adjustment and execution mechanism of the inlet and the outlet of the fan; (m) carrying out secondary grouting on an equipment foundation; (n) mounting expansion joints of the inlet and the outlet; (o) mounting a circulating cooling water system and an accessory system; and (p) carrying out test run of the equipment. Through strictly designing normative mounting and detecting standards, the invention has the advantages of simple debugging method, safety, reliability and high working efficiency.
Description
Technical field
The present invention relates to the metallurgical equipment installing area, be specially a kind of method for mounting dry quenching circulating fan.
Background technology
Dry quenching(of coke) is a smelting power-saving technology that newly is born in the world at present, 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, is discharged below the red burnt cooling room cooling down high-temperature coke to 250 of cold recycle gas input ℃ by recirculation blower.Cycling hot conductance after absorption coke heat enters waste heat boiler and reclaims heat, produces steam.Recycle gas is cooling, after dedusting, then return to cooling room through blower fan, so red Jiao of circulating 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-saving Projects, owing to completing the quenching process in closed system, compare with common coke wet quenching, but the discharging of basically eliminate phenol, HCN, H2S, NH3 reduces burnt dirt discharging, and saves the quenching water.Recirculation blower is the visual plant of dry quenched coke gas circulating system, is responsible for using sending into continuously quenching stove internal recycle after the gas pressurization of closed cycle.The blower fan overwhelming majority that present domestic dry coke quenching engineering adopts is not to be with the frequency conversion centrifugal fan of fluid-flywheel clutch, and it mainly is comprised of base, top and the bottom housing, front and back bearings, rotor, front and back shaft seal and motor etc.Because Dry Quenching Technology belongs to emerging field, only there are several enterprises of very few several family in the unit of domestic this method of employing, also is in the stage of fumbling for the installation of dry coke quenching equipment, exists much not science, irrational place, and installation process is complicated.
Summary of the invention
In order to overcome the defective of prior art, a kind of safe and reliable metallurgical equipment installation method is provided, the invention discloses a kind of method for mounting dry quenching circulating fan.
The present invention reaches goal of the invention by following technical solution:
a kind of method for mounting dry quenching circulating fan, carry out successively as follows: a. inspects for acceptance on the basis, b. wall screw, seat slurry pier arranges and the equipment OOBA, c. blower fan, bearing and motor base are installed, d. equipment anchor bolt once grouting, e. the lower shaft bearing is installed, f. the blower fan lower case is installed, g. rotor is installed, h. plumer block upper cover, Shang watt and shaft seal install, i. blower fan upper body and shaft seal are installed, j. motor is installed, k. shaft coupling is proofreaied and correct, l. blower fan is imported and exported the adjustment actuating mechanism installation, m. Equipment Foundations back-grouting, n. importing and exporting expansion joint installs, o. recirculated cooling water and subsystem are installed and the p. equipment shakedown, it is characterized in that:
When c. blower fan, bearing and motor base are installed, the lifting of rotor and casing keeps level, and when base plate was installed, reference center and absolute altitude absolute altitude reference point that assembling center and absolute altitude benchmark are set with dry quenching system were installed, adjust center, absolute altitude and the levelness of base plate
When e. the lower shaft bearing is installed, remove two bearings box cover and upper watt, adjust diaxon bearing center, width between centers, absolute altitude and levelness; Adjust the two bearings coordinate high; Check bearing shell sphere and casing ball-and-socket contact area and tolerance clearance with the red lead staining method, check the gap when not tighting a bolt between bearing support and base,
When g. rotor is installed, after bearing support is adjusted qualified and cleaned up, with the rotor hoisted in position; Measure and adjust the rotor levelness with combined diagram level or frame level; Check the contact area of adjusting rotor journal and bearing shell and push up gap, side clearance, the surperficial contact with axle journal of bearing shell should be even,
H. the plumer block upper cover, Shang watt and shaft seal when installing, the shrink range between bearing and step cover is 0.03～0.06,
When i. blower fan upper body and shaft seal are installed, fit in the junction surface of upper-lower casing, uses sealing cord and sealant sealing between bonding surface,
P. during equipment shakedown, carry out successively by the examination of a. motor list, the debugging of b. fans entrance damper and c. location and motor-blower fan trial trip.
Described method for mounting dry quenching circulating fan is characterized in that: front opening blower fan circulating cooling water pipe and N before the p. equipment shakedown
2Tube valve water supply air feed, the fixation of taking measures of movable sleeve before electric motor starting on half a coupler, the qualified rear connection shaft coupling of motor monomer trial trip, drive blower fan and carry out trial trip, standard-sized sheet outlet valve before fan starting, the full cut-off air inlet valve, first electric motor, each position without abnormal phenomenon and the friction sound after, starter motor is after blower fan reaches specified speed, slowly open again air inlet valve, in the variation of the whole process monitoring motor current value of opening air inlet valve, regulate the aperture of air inlet valve, the trial trip from little load to rated load is carried out in segmentation.
The present invention is by installation and the detection reference of strict design specifications, and adjustment method is simple, and is safe and reliable, and operating efficiency is high.
Description of drawings
Fig. 1 is schema of the present invention;
Fig. 2 is the schema of equipment shakedown in the present invention.
Embodiment
Below further illustrate the present invention by specific embodiment.
Embodiment 1
a kind of method for mounting dry quenching circulating fan, carry out successively as follows: a. inspects for acceptance on the basis, b. wall screw, seat slurry pier arranges and the equipment OOBA, c. blower fan, bearing and motor base are installed, d. equipment anchor bolt once grouting, e. the lower shaft bearing is installed, f. the blower fan lower case is installed, g. rotor is installed, h. plumer block upper cover, Shang watt and shaft seal install, i. blower fan upper body and shaft seal are installed, j. motor is installed, k. shaft coupling is proofreaied and correct, l. blower fan is imported and exported the adjustment actuating mechanism installation, m. Equipment Foundations back-grouting, n. importing and exporting expansion joint installs, o. recirculated cooling water and subsystem are installed and the p. equipment shakedown.
Complete following preparation of construction before the debugging beginning:
1. technical information is prepared
(1) dry quenching circulating fan installation plan and equipment are installed, working instructions are complete.
(2) recirculation blower and random supporting device fabrication quality certificate or work certificate and survey report are complete.
(3) recirculation blower factory-assembled record of survey, trial trip are recorded complete.
(4) equipment vanning inventory and equipment unit packing list are complete.
(5) construction process record of search table is worked out, arranges complete.
2. lifting, Transport Machinery is practicable, and work facility etc. have been prepared to put in place.
3. operating condition
(1) engineering technical personnel fully are familiar with " Design of Construction Organization " of relevant drawing, design, equipment and technology file, construction inspection rules and approved, and confide a technological secret to the operating personnel by the requirement of above technical publications.
(2) transport to on-the-spot equipment front quality inspection all is installed, the problem that exists has been decided through consultation processing scheme with equipment manufacturing and applying unit.
(3) the installation exercise passage is all unimpeded, and around the operating area, platform, railing all install, and security measures is all on board.
(4) large-scale hoisting machinery is marched into the arena, and complete liquidation is complete for passage and operating area, and it is qualified that operation path and setting foundation capability have checked, and take measures to satisfy large-scale loop wheel machine normal operation and safety.
Can begin debugging after being ready to complete, schema as shown in Figure 1.
One, inspect for acceptance in the basis
1. monitoring device basis axial location, absolute altitude, size should meet the regulation of design document and existing national standard " mechanical equipment installation engineering construction and examination general specification " GB50231-98.
2. check position, the size of central position, the degree of depth, hole wall verticality and the pre-buried horizontal bar of backup land bolt holes in strict accordance with the requirement of design document.
Two, backing plate setting
The setting of backing plate should meet the requirement of design and equipment technical publications, during the no standard of design and equipment technical publications, should adopt a slurry method that backing plate is set, selecting and arranging of backing plate should be carried out according to the regulation of " parallels is made and selected the operating technique rules " Q/WYJ001-04-2006 and " mechanical equipment installation engineering construction and examination general specification " GB50231-98.
Three, equipment OOBA
Unpacking of recirculation blower should be carried out under the relevant personnel of construction unit participate in, and should meet the following requirements:
By the equipment unit packing list check blower fan part, parts and auxiliary equipment and should be complete;
2. check the main installation dimension at impeller, casing and other position, and should conform to design;
3. each machined surface of blower fan exposed parts is answered non-corroding; The main position of the major parts such as the impeller of rotor and axle journal, parts should be without damaging and significantly distortion.
Four, blower fan, bearing and motor base installation,
1. the carrying of recirculation blower and the lifting hoisting transportation machinery that should select to be complementary with its weight;
2. when equipment carrying and lifting, sfgd. should be arranged, suspension centre should be at the marker location of equipment and tr, should not cause the equipment deformation and damage because of carrying and lifting;
3. the rotor journal position should be as the position of tying, and the lifting of rotor and casing should keep level, and must not tie of rope damages surface of the work.
Five, recirculation blower floor installation
1. mounting center and absolute altitude benchmark
Reference center and absolute altitude absolute altitude reference point that recirculation blower mounting center and absolute altitude benchmark are set with dry quenching system are installed.
2. center, absolute altitude and the levelness permissible variation of adjusting base plate meet the requirement of design and equipment technical publications, during the no standard of design and equipment technical publications, the center permissible variation is ± 2mm that the absolute altitude permissible variation is ± 1mm that the levelness permissible variation is 0.5/1000.
Six, bearing support is installed
1. remove two bearings box cover and upper watt, adjustment diaxon bearing center, width between centers, absolute altitude and levelness permissible variation meet the requirement of design and equipment technical publications, during the no standard of design and equipment technical publications, the center permissible variation is ± 2mm, the absolute altitude permissible variation is ± 1mm, plumer block split vertical equity degree permissible variation is 0.04/1000, and transverse horizontal degree permissible variation is 0.08/1000;
2. adjust the two bearings coordinate high, making the non-back side of fan rotor is that free end is the slightly high 0.2～0.5mm of inboardend than back side;
3. check that bearing shell sphere and casing ball-and-socket contact area and tolerance clearance meet the requirement of design and equipment technical publications, contact should be even, and available red lead staining method checks, as undesirable, should be processed by device fabrication side, forbid sphere and casing to grind mutually, can destroy casing like this;
4. check the gap when not tighting a bolt between bearing support and base, its gap is not more than 0.05mm.
Seven, rotor is installed
1. after bearing support is adjusted qualified and is cleaned up, with the rotor hoisted in position;
2. measure and adjust the rotor levelness with combined diagram level or frame level, rotor levelness permissible variation should meet the requirement of design and equipment technical publications, and during the no standard of design and equipment technical publications, the levelness permissible variation is 0.04/1000;
3. check the contact area of adjustment rotor journal and bearing shell and the requirement that gap, top, side clearance meet the design and equipment technical publications, during the no standard of design and equipment technical publications, the bearing shell surface contacts with axle journal should be even, contacting surface should be less than 60 °, the obvious boundary that do not have between contact surface and noncontact face, axially contact length should be less than 80% of bearing shell length, as undesirable, should repair and scrape and adjust, until qualified;
4. thrust block and thrust button contacts the requirement that requirement and end play should meet the design and equipment technical publications, during the no standard of design and equipment technical publications, the contact of thrust disc or thrust shaft collars should be even, contact area should be more than 70%, the gap of thrust disc can be detected with dial gauge, as undesirable, should adjust;
5. after every data are adjusted passed examination, again detect the levelness of adjusting bearing support and rotor.
Eight, the plumer block upper cover, Shang watt and shaft seal install
1. after conscientious bearing cleaning case and bearing shell, can install watt and wiper ring, oil ring should correctly be installed by the requirement of design and equipment technical publications, without the jam phenomenon.
2. checking that thermometer and oil ring have or not touches the card phenomenon, if any touching card, and the processing of need taking measures;
3. the bearing box cover is installed, and the casing split should seal by the equipment and technology documentation requirements, must not leakage of oil, inject the lubricating oil of regulation model after installing in the bearing by the requirement of equipment and technology file;
4. the shrink range between bearing and step cover should meet the requirement of design and equipment technical publications, during the no standard of design and equipment technical publications, gets 0.03～0.06, and the present embodiment gets 0.05, as undesirable, should adjust.
Nine, the blower fan upper body is installed
1. the blower fan upper body is installed, should fit in the junction surface of upper-lower casing, before not tighting a bolt, its local gap should not meet the regulation of equipment and technology file, when the no standard of equipment and technology file, its gap width should be greater than 0.12mm, between bonding surface, by requirement sealing cord and the sealant sealing of equipment and technology file;
2. all of blower housing inside are threaded and should tighten by the moment of equipment and technology files specify;
3. utilize blower fan lower housing bearing to adjust blower fan front and back two blast inlets or the radius clearance of sealing-ring and rotor wheel and the requirement that depth of penetration meets the design and equipment technical publications, the gap of front and back two air draught circles and rotor wheel should be even, without the too small phenomenon of jam or gap, can carry out the connection of air door adjustment actuating mechanism and import baffle plate after qualified;
In strict accordance with the equipment and technology file require assemble case two ends shaft seal, each position of components and order should be correct, the radius clearance between axle and watertight chest meets the requirement of equipment and technology file.
Ten, shaft coupling is proofreaied and correct
Utilize dial gauge to proofread and correct shaft coupling, the radial displacement of shaft coupling, axis tilt and the gap should meet the requirement of design and equipment technical publications, proofread and correct and just can carry out back-grouting after qualified.
11, trial trip
The trial trip schema as shown in Figure 2.
One, the prerequisite precondition of blower fan trial trip
1. the installation work before the blower fan trial trip finishes, and checks and accepts on inspection complete;
2. the auxiliary equipments such as recirculated cooling water, lubricated, gas (vapour), hydraulic pressure, electric, instrument control are all complete by system check, and should reach the requirement of trial trip;
3. equipment has been carried out in accordance with regulations cleaning, inspection, the cleaning before trial trip, guarantees that in blower fan, all foreign matters are removed, and the need such as fan bearing lubricant housings is by equipment and technology file annotated lubricating oil or the lubricating grease of regulatory specifications and quantity;
4. the blower fan surrounding environment is thoroughly cleaned, and setting completed for the necessary security measures of trial trip, and the safety custody personnel have arranged to put in place;
Valve member and control device should be in equipment and technology file defined make blower fan be minimum load the time enable position;
6. the moving fan rotor of dish, should without jam and scratching phenomenon, confirm that the turning direction of impeller meets the regulation of equipment and technology file.
Two, trial trip main points
1. the recirculation blower trial trip must according to the requirement of equipment and technology file, be carried out under the guidance of device fabrication side;
2. trial trip front opening blower fan circulating cooling water pipe and N
2Tube valve water supply air feed;
3. carry out on request the trial trip of motor monomer, confirm that vibration, temperature rise, noise and the current value etc. of motor should meet the regulation of design and equipment technical publications, the fixation of should taking measures of the movable sleeve before electric motor starting on half a coupler;
4. the qualified rear connection shaft coupling of motor monomer trial trip, drive blower fan and carry out trial trip;
5. standard-sized sheet outlet valve before fan starting, the full cut-off air inlet valve.First electric motor, each position without abnormal phenomenon and the friction sound after, starter motor after blower fan reaches specified speed, is more slowly opened air inlet valve, in the look over one's shoulder variation of motor current value of the whole process of opening air inlet valve, is strictly on guard against the excessive burn-out motor of electric current;
6. according to the regulation of equipment and technology file, regulate the aperture of air inlet valve, the trial trip from little load to rated load is carried out in segmentation, and each section break(ing)-in-period should meet the regulation of equipment and technology file and standard, checks that following items also should meet the regulation of design and equipment technical publications:
(1) working order of blower fan, have or not abnormal noise, abnormal vibrations;
(2) temperature of bearing, vibration, noise;
(3) motor current value, noise, temperature;
(4) the lubricated and wear pattern of bearing, axle journal;
(5) lubricating oil temperature, pressure;
(6) temperature of cooling water, flow;
(7) N
2Flow, pressure.
Claims (1)
1. method for mounting dry quenching circulating fan, carry out successively as follows: a. inspects for acceptance on the basis, b. wall screw, seat slurry pier arranges and the equipment OOBA, c. blower fan, bearing and motor base are installed, d. equipment anchor bolt once grouting, e. the lower shaft bearing is installed, f. the blower fan lower case is installed, g. rotor is installed, h. plumer block upper cover, Shang watt and shaft seal install, i. blower fan upper body and shaft seal are installed, j. motor is installed, k. shaft coupling is proofreaied and correct, 1. blower fan is imported and exported the adjustment actuating mechanism installation, m. Equipment Foundations back-grouting, n. importing and exporting expansion joint installs, o. recirculated cooling water and subsystem are installed and the p. equipment shakedown, it is characterized in that:
When c. blower fan, bearing and motor base are installed, the lifting of rotor and casing keeps level, and when base plate was installed, reference center and absolute altitude absolute altitude reference point that assembling center and absolute altitude benchmark are set with dry quenching system were installed, adjust center, absolute altitude and the levelness of base plate
When e. the lower shaft bearing is installed, remove two bearings box cover and upper watt, adjust diaxon bearing center, width between centers, absolute altitude and levelness; Adjust the two bearings coordinate high; Check bearing shell sphere and casing ball-and-socket contact area and tolerance clearance with the red lead staining method, check the gap when not tighting a bolt between bearing support and base,
When g. rotor is installed, after bearing support is adjusted qualified and cleaned up, with the rotor hoisted in position; Measure and adjust the rotor levelness with combined diagram level or frame level; Check the contact area of adjusting rotor journal and bearing shell and push up gap, side clearance, the surperficial contact with axle journal of bearing shell should be even,
H. the plumer block upper cover, Shang watt and shaft seal when installing, the shrink range between bearing and step cover is 0.03～0.06,
When i. blower fan upper body and shaft seal are installed, fit in the junction surface of upper-lower casing, uses sealing cord and sealant sealing between bonding surface,
P. during equipment shakedown, carry out successively by the examination of a. motor list, the debugging of b. fans entrance damper and c. location and motor-blower fan trial trip,
Equipment shakedown front opening blower fan circulating cooling water pipe and N
2Tube valve water supply air feed, the fixation of taking measures of movable sleeve before electric motor starting on half a coupler, the qualified rear connection shaft coupling of motor monomer trial trip, drive blower fan and carry out trial trip, standard-sized sheet outlet valve before fan starting, the full cut-off air inlet valve, first electric motor, each position without abnormal phenomenon and the friction sound after, starter motor is after blower fan reaches specified speed, slowly open again air inlet valve, in the variation of the whole process monitoring motor current value of opening air inlet valve, regulate the aperture of air inlet valve, the trial trip from little load to rated load is carried out in segmentation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910053486 CN101928580B (en) | 2009-06-19 | 2009-06-19 | Method for mounting dry quenching circulating fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910053486 CN101928580B (en) | 2009-06-19 | 2009-06-19 | Method for mounting dry quenching circulating fan |
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| CN101928580A CN101928580A (en) | 2010-12-29 |
| CN101928580B true CN101928580B (en) | 2013-05-15 |
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| CN 200910053486 Active CN101928580B (en) | 2009-06-19 | 2009-06-19 | Method for mounting dry quenching circulating fan |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112361917A (en) * | 2020-11-16 | 2021-02-12 | 中国二冶集团有限公司 | Installation and construction method of regenerative fan |
| CN116379011A (en) * | 2023-03-29 | 2023-07-04 | 华能山东发电有限公司烟台发电厂 | Fan spindle installation method and device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1267704A (en) * | 2000-03-23 | 2000-09-27 | 上海宝钢集团公司 | Maintenance method and equipment for cooling section of dry coke extinguishing tank |
| CN2454377Y (en) * | 2000-12-08 | 2001-10-17 | 于彦奎 | Dry coke-quenching dust-collecting apparatus |
| CN101104808A (en) * | 2006-12-10 | 2008-01-16 | 孙明君 | Dry quenching coke fitting device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001192662A (en) * | 2000-01-07 | 2001-07-17 | Nippon Steel Corp | Coke dry quenching facility |
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2009
- 2009-06-19 CN CN 200910053486 patent/CN101928580B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1267704A (en) * | 2000-03-23 | 2000-09-27 | 上海宝钢集团公司 | Maintenance method and equipment for cooling section of dry coke extinguishing tank |
| CN2454377Y (en) * | 2000-12-08 | 2001-10-17 | 于彦奎 | Dry coke-quenching dust-collecting apparatus |
| CN101104808A (en) * | 2006-12-10 | 2008-01-16 | 孙明君 | Dry quenching coke fitting device |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2001-192662A 2001.07.17 |
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