CN101721862B - Meta-synthesis construction method of 600MW unit bag-type dust remover - Google Patents
Meta-synthesis construction method of 600MW unit bag-type dust remover Download PDFInfo
- Publication number
- CN101721862B CN101721862B CN2009102278059A CN200910227805A CN101721862B CN 101721862 B CN101721862 B CN 101721862B CN 2009102278059 A CN2009102278059 A CN 2009102278059A CN 200910227805 A CN200910227805 A CN 200910227805A CN 101721862 B CN101721862 B CN 101721862B
- Authority
- CN
- China
- Prior art keywords
- unit
- installation
- crane
- bag
- card
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention relates to an installation method of a bag-type dust remover with large unit capacity, in particular to a metal-synthesis construction method of a 600MW unit bag-type dust remover, which solves the technical problem that the bag-type dust remover is applied and installed on a 600MW generator set. The metal-synthesis construction method comprises the following steps of: installing a rail (14) on the ground, arranging a crane (15) on the rail (14), starting crane-removing installation from the position of an eighth unit, gradually dismantling the rail that is out of action at the same time of the crane removal, putting a small-size gantry crane on well-installed front and rear walls formed by wallboards when the installation is removed to a fifth unit in sequence, ensuring that the crane (15) and the gantry crane (16) work simultaneously, and hoisting to a first unit in sequence and finishing the construction. In the process, the Zhangshan bag-type dust remover is used for constructing for the first time; by innovating the thought and reasonably using construction machinery, a gibbet is used at the early stage, and an electric hoist is used at the later stage, therefore, the working face is increased, the labor efficiency is improved, and the construction cost is reduced.
Description
Technical field
The present invention relates to a kind of installation method of big unit capacity sack cleaner, be specially a kind of 600MW unit bag-type dust remover meta-synthesis construction method.
Background technology
Sack cleaner is a kind of dry dust removal device, the working mechanism of sack cleaner is that ash-laden gas passes through filtering material, grit is filtered, it is applicable to that capture is tiny, dry, the non-fiber dust, it is strong not only to have the deashing ability, the efficiency of dust collection height, characteristics such as concentration of emission is low, also have reliable and stable, air consumption is low, the characteristics that floor space is little, being particularly suitable for handling the flue gas of big air quantity. the outer surface from cloth bag under the effect of air-introduced machine of the ash-laden gas after the burning penetrates in the cloth bag, and the dusty material that contains in the flue gas in this process is accumulated in the outer surface of cloth bag by the cloth bag filtration.What come out in the cloth bag through such process is exactly clean flue gas, can be by smoke stack emission to upper atmosphere.
For the less sack cleaner of volume, can realize installing than being easier to, but at present, along with Chinese economic development, the construction scale of various places be increasing.In industries such as electric power, metallurgy, buildings big capacity, large span sack cleaner need be installed, to satisfy restriction and the national consideration that environmental protection requirement is improved day by day that country examines the arable land purposes.The big capacity of at home some power plant for example uses sack cleaner on the 600MW unit,, about 1786 tons of Steel Structure Installation part gross weight is installed the about 72200m of filter area
270 meters of separate unit sack cleaner spans, front and back all are buildings, the construction site is narrow and small and structural configuration is compact, main loop wheel machine tool does not have erect-position and can't cover the whole construction zone, because of this project is national first Application, installing, debug test run from equipment does not have to borrow the experience of signing, and has increased difficulty of construction again.Can't construct the at present domestic precedent that does not also have the installation under this kind occasion according to traditional construction method.
Summary of the invention
The present invention provides a kind of 600MW unit bag-type dust remover meta-synthesis construction method in order to solve the technical problem that the application sack cleaner is installed on the 600MW generating set.
The present invention is realized that by following technical scheme a kind of 600MW unit bag-type dust remover meta-synthesis construction method may further comprise the steps:
At the ground attachment rail, crane is set on the track, move back since Unit the 8th earlier and hang installation, install and after Unit the 8th finishes Unit the 7th is installed again, remove ineffective track when hanging moving back, when retreating to Unit the 5th, this moment, crane can not satisfy the structure installation that covers Unit seven, eight fully, utilize the track of deduster front and back wallboard as walking mechanism, then small-sized gantry crane is placed on the front and back the top of a wall of already installed wallboard formation, this walking mechanism has walking mechanism and utilizes wallboard to move for guide rail.Gantry crane is installed smallclothes (as the card beam, card, top board, roof truss) such as deduster equipment, lifts successively to first module and finishes, and has alleviated the frequency of utilization of main loop wheel machine tool, has enlarged working face.
Economic benefit: this technology is used first at mountain, Zhang sack cleaner and is constructed, by opening one's minds, rationally use construction machinery, use flat arm to hang early stage, and the later stage is used electric hoist, increased working face, improved efficiency, reduced construction cost, saved machinery altogether and take 140,000 yuan, 40,000 yuan of labour costs add up to 180,000 yuan.Environmental benefit: in the sack cleaner running of mountain, Zhang, through the actual test of Shanxi Province Utilities Electric Co. environmental monitoring central station, the deduster dust emission only is 12.8mg/Nm
3, be better than national standard 50mg/Nm
3, greatly reduce predetermined target value, improved the efficiency of dust collection of sack cleaner.
Description of drawings
Fig. 1 is an internal structure schematic diagram of the present invention
Fig. 2 is the side view of Fig. 1
Fig. 3 is the vertical view of Fig. 1
Fig. 4 is one of installation steps
Fig. 5 is two of installation steps
Fig. 6 is three of installation steps
Fig. 7 is four of installation steps
Fig. 8 always schemes for installation procedure
The specific embodiment
Anticipate as shown in Figure 1, 2, 3, the 600MW unit bag-type dust remover, comprise eight dust removing units that connect successively, each dust removing units structure is, bottom steel structure 1, bottom steel structure 1 are provided with ash bucket 2, casing 7 is arranged on the ash bucket 2, be provided with card assembly 6 in the casing 7, hang with filter bag 5 on the card assembly 6, card assembly 6 and filter bag 5 are divided into two chambeies up and down with casing, and a side of casing cavity of resorption is connected with import smoke box 4, import smoke box 4 connects generating set, the casing epicoele connects outlet smoke box 8, and outlet smoke box 8 also is connected with inverse blowing device 9, induced duct 13.
A kind of 600MW unit bag-type dust remover meta-synthesis construction method, may further comprise the steps: as schematically shown in Figure 4,, crane 15 is set on the track 14 at ground attachment rail 14, the position of the sack cleaner in track 14 and the design overlaps substantially, has made full use of the construction place.Move back since the 8th cell position earlier and hang installation, install and after Unit the 8th finishes Unit the 7th is installed again, progressively remove ineffective track when hanging moving back, install when retreating to Unit the 5th successively, this moment, crane can not satisfy the structure installation of the inside that covers Unit seven, eight fully, utilize the track of deduster front and back wallboard then as walking mechanism, then small-sized gantry crane is placed on the front and back the top of a wall of already installed wallboard formation, this walking mechanism has walking mechanism and utilizes wallboard to move for guide rail.Gantry crane is installed smallclothes (as the card beam, card, top board, roof truss) such as deduster equipment, has alleviated the frequency of utilization of main loop wheel machine tool, has enlarged working face, and crane and gantry crane are worked simultaneously, lifts successively to first module to finish.
Wherein the installation steps of any one unit are: as schematically shown in Figure 4, the first step is that bottom steel structure 1 is installed, and as schematically shown in Figure 5, the second step ash bucket 2 is installed; As schematically shown in Figure 6, the 3rd step casing 7 is installed; In the 4th step, import smoke box 4, outlet smoke box 8 are installed; As schematically shown in Figure 7, small-sized gantry crane is placed on the already installed unit, carried out for the 5th step then, the installation of the card assembly 5 that card beam and card constitute; In the 6th step, loop chain mechanism installs; The installation of the 7th step top cover 10; The 8th step blowback wind system 9 and flue gas exchange system are installed; The 9th step: the installation of the filter bag device 5 that filter cage, filter bag are formed.
Be specially the first step: be that bottom steel structure 1 is installed,
1) marks the center line of steel column and the cross centre line of column base plate, and go out the 1m absolute altitude line of steel strut with the capital for the size datum dot-dash.
2) steel frame construction adopts duplex, makes up the 2nd Pin, the 3rd Pin above it after promptly having made up a Pin ..., saved unwrapping wire and adjustment time, increase work efficiency.Place platform to keep steady each member, strict control intercolumniation and Diagonal Dimension, during welding, each position elder generation spot welding is firm, and then welding in order, with the control welding deformation.
3) after the steelframe Combination Welding is finished, safety cable and cat ladder are installed on the steelframe, are convenient to workmen's decoupling device up and down.
4) steelframe that combines is hung installation in position with flat arm, the column base plate center line overlaps with the base center line, fixes dilatory rope, and utilize level meter and theodolite inspection, guarantee the perpendicularity of each column absolute altitude and both direction, after adjustment finishes, the dilatory rope of tension, fastening nut.
Bottom girder is installed: 1) bottom girder makes up the back minimizing work high above the ground is installed on platform.
Be connected and fixed with channel-section steel earlier when 2) installing temporarily, adjust the framework physical dimension, weld again after the passed examination.
3) before the welding, earlier the weld seam symmetric points are welded admittedly, take symmetric position to weld synchronously then, to reduce welding deformation.
The second step ash bucket 2 is installed:
The ash bucket construction technology process: the ash bucket combination, welding, inspection leak source (kerosene infiltration), gusset is installed welding, determines the installation site benchmark and the direction of ash bucket on bottom girder, and lifting is located and is welded with bottom girder.
1) the ash bucket side of being taper, physical dimension is bigger.The ash bucket combination will be carried out before steelframe is installed, so that operation is more reasonable, reduces the work holdup and machinery waste, installs at bottom girder and carries out integral hoisting after welding finishes.
2) gusset is installed under the situation of the intact no leak source of ash bucket angle welding fuel permeation test in the ash bucket.
Note the directionality of ash bucket when 3) ash bucket is in place, ash bucket back in place is at the ash bucket safety net of completely spreading suitable for reading.
The 3rd step casing 7 is installed:
The casing flow of installation: determine the installation site benchmark of each H shaped steel column, hoisting prefabricated good each H shaped steel, steel pipe, wallboard and angle steel etc. are assembled welding according to figure paper size and specification requirement.
1) sets up simple and easy platform,, install and connect each H shaped steel, steel pipe, wallboard and angle steel etc., assemble welding according to figure paper size and specification requirement then, at last wallboard is carried out assembly unit at first according to the location benchmark of each H shaped steel column.
2) wallboard 16 areas are bigger, and the wallboard weld seam is more and concentrated relatively, and wallboard rinforcement bar H shaped steel cross section is less relatively, and rigidity is not enough, easily produce moderate finite deformation during welding.When forward and backward and sidewall paneling made up in advance on ground, all weld seams did not all weld, and only taked interim section weldering to reinforce, and treated that wallboard is lifted on frame set and welds after intact.To reduce welding deformation amount, the counterpart difficulty when simple and easy wallboard closes up.
3) wallboard that will reinforce after welding carries out secondary size check examination.The welding hanger, fasten dilatory rope, carry out safe supplementary measures after, it is in place to sling with flat arm, with dilatory restrict temporary fixed.
4) wallboard is installed orientation axis and absolute altitude, check with theodolite, spirit level and steel ruler are on-the-spot.
Box body combinations welding integral hoisted in position can reduce work high above the ground, reduces the frequency of utilization of main loop wheel machine tool, reduces scaffold and takes the workload of tearing open.Can cause the wallboard distortion if bad welding deformation is controlled in the combination of casing ground, be difficult for counterpart during installation, increase difficulty of construction.
The 4th step: import smoke box 4, outlet smoke box 8 are installed
On casing 7, determine the reference for installation of import and export smoke box, the lifting location and with the casing welding, in the import smoke box, assemble airflow-distribution board, treat that filter bag is installed after, the filter bag protective device is installed.
1) import smoke box 4 combination is identical with ash bucket 2 combinations, and the air-flows in the import smoke box 4 distribute according to crane operating mode decision installation or treat that smoke box installs after in place.
2) outlet smoke box 7 and inner support integral hoisting after the entire combination of ground.
3) import and export the smoke box hanger and stretch root bead and be connected on smoke box rinforcement bar side, reinforce with the shoulder pole crossbeam when flat arm is sling.The smoke box end opening is outward-dipping a little, so that the smoke box counterpart, hang with several 5 tons or 10 tons of jacks temporarily smoke box back in place, treat the reinforcing of smoke box and column reach intensity after off the hook withdraw crane.
The on-the-spot Combination Welding integral hoisting of smoke box is in place, and welding quality, physical dimension be easy to guarantee, and has reduced work high above the ground ground frequency and scaffold is taken the workload of tearing open.
The 5th step: the installation of the card assembly 5 that card beam and card constitute
Card beam levelness exceeds standard and can cause filter bag and card to seal the bad generation wearing and tearing filter bag that leaks out; Cause the filter bag out of plumb, rubbing mutually between the filter bag in the running makes filter bag damage.Because of making the card beam that levelness is installed, following several reasons are difficult for reaching the drawing requirement during on-the-spot the installation: the one, and the bending that takes place in bending of card beam mother metal self and the transportation; The 2nd, card beam mismatch when shop splice seriously produces; The 3rd, correction value adds up to cause and exceeds standard in the installation process, is difficult for reaching the value of drawing requirement, take during construction following measure guarantee card beam levelness meet the drawing requirement ≯ ± 3mm.
1) single card beam is all checked before installation, and the classification that discovery exceeds standard is revised.The employing flame correction that card beam self amount of bow is little, the bigger employing flame of bending cooperates mould to proofread and correct, and is adapted in the drawing setting; To producer's splicing welding joint mismatch, mismatch is eliminated in the counterpart welding again.
2) the card assembly is installed on the left and right sides wallboard by drawing; the card beam is from center stand column (support of the rice word) flower of smoke box side installation forwards, backwards after the levelling of card assembly; with the spirit level monitoring card beam is installed in the installation process; to reduce alignment error and aggregate-value, guarantee spacing and levelness between the card beam during installation.
3) whole card must carry out visual examination before installing, and must carry out smooth before the monolithic card welded and installed.
4) in card when welding, formulated welding procedure, takes thin welding rod, little electric current, segmentation skip welding and welder's skill of being symmetrically welded prevents welding deformation.
5) quality inspection of card seal welding weld seam: all weld seams of card are carried out 100% kerosene penetrating inspection (use kerosine test, must carry out) under 〉=5 ℃ environment.
In the 6th step, loop chain mechanism 11,12 installs
It is the key link that sack cleaner is installed that loop chain mechanism installs, and loop chain mechanism installs bad meeting and causes leaking out, and makes the blowback deficiency in draught, influences dedusting effect; Cause the indoor mechanism of bag not move, can't carry out deashing, adopt this worker method installing ring chain mechanism, reduce between the parts and rub stable operation the indoor filter bag of bag.
1) the preceding flexibility ratio of checking the activity of soot cleaning valve valve plate is installed, the bite phenomenon must not be arranged.Take into account the driving wheel position centering of loop chain mechanism during the integral installation of soot cleaning valve casing.
2) during installation bracket according to figure paper size unwrapping wire on the card beam, guarantee that carriage is vertical, firmly.
3) each joint of loop chain is hinge-coupled, and each hinge place should make the carrier bar that is coupled to each other freely turn round, and does not have the phenomenon of interlock.
4) install the correct transmission that each chain pitch and sprocket wheel are checked in the back.Check whether soot cleaning valve air inlet circular valve plate switch puts in place, whether the contact point of meeting and discussing with loop chain of meeting and discussing on the valve shaft step down, step down if any chain, need to adjust the lateral register of chain, lateral register as chain is adjusted to the limit, the need replacing is met and discussed or is repaired the contact-making surface of meeting and discussing, and makes its normal contact.Whether inspection shutter valve plate is closed and is put in place, and cam reciprocating push rod long-range changes, and carries out suitable adjustment.
The 7th step: the installation of top cover 10
1) roof truss is installed in interior top, directly carries out Combination Welding in the above after the installation welding leak detection mending-leakage.Control relief with level meter, guarantee the gradient of roof truss.
2) after roof truss installs, top board is installed welding, guarantee the tightness of weld seam
The 8th step: blowback wind system 9 and flue gas exchange system are installed
1) platform of epitaxial part is welded on the sidewall of deduster, smooth firm.
2) base plate is welded on the top cover and platform of deduster, answers the position accurately firm.
3) want accurately the support welding position, and welding is wanted firmly.Installation, the operation of back blowing machine will be convenient in same levelness in plane on it.
4) airduct links to each other with back blowing machine, reverse-blow pipe and flue gas displacement apparatus, and its flange connections sealing should be good, and air leakage phenomena does not have.
5) shock absorber of back blowing machine, correctly rack-mount, make its performance damping effect.
The 8th step is to housing malleation air leakage test
Adopt the back blowing machine system that the deduster housing is beaten malleation, the suds leak detection, the leak source of inspection weld seam leak source and other faying face has solved the high difficult problem of sack cleaner air leak rate of air curtain.
The 9th step: the installation of the filter bag device 5 that filter cage, filter bag are formed
The installation of filter bag, bag cage should be carried out after the whole installment works of deduster finish at last, uses the protection short tube when filter bag is installed, and makes the friction that reduces in the filter bag installation process with card, and it is damaged to guarantee to install filter bag zero, reduces construction cost and guarantees efficiency of dust collection.
Put into the filter bag that installs blank holder again after will protecting short tube to put into the card hole earlier when 1) filter bag is installed,, and then filter bag, bag cage are installed in order to avoid the filter bag damage will protect short tube to take off after filter bag is packed into.Filter bag is installed by two people, and a people is with the longitudinal folding card hole of sending into of cloth bag, and another people catches and open the filter bag of rolling, and the bag cage is wanted centring, puts into gently, guarantees during installation that bag is vertical, and balance firmly, must not have crooked distortion, and forbidding has scratch.Fall in time to clear up in the filter bag if any part or foreign material in the installation process and guarantee that filter bag is inner clean.
The junction should insert firmly when 2) the bag cage was installed, and connected the card chucking.Its perpendicularity is checked in filter cage back in place, the suit filter bag again that reaches after the drawing specification requirement to be corrected.
3) filter bag opening should be closely and the embedding of card aperture tight, must not be crooked, do not stay the slit.
4) filter bag installation check: whenever install a filter bag, check whether bonding crack seals, and whether sealing station is correct.From ash bucket, check whether vertical, as finding to have the filter bag bottom to collide or when incorrect, carrying out record straightening under the special messenger instructs in time.
5) filter bag is installed the back inspection: whether bonding crack seals, and whether sealing station is correct.Whether vertically from ash bucket, check, collide or when incorrect as finding to have the filter bag bottom, be under the special messenger instructs the straightening location.
6) filter bag, bag cage location and installation: blank holder, bag cage, filter bag, card four parts centers want consistent, and its deviation is less than 2mm; After filter bag, bag cage, blank holder install, the filter bag positioner is installed, is required the vertical and spacing of filter bag to equate that with the 10# galvanized wire filter bag bottom is fixed, the filter bag of close wallboard will be placed in the middle of the filter bag protective device, with the damage filter bag that reduces friction in the filter bag bottom.
Carry out the fluorescent material leak detection then, filter bag installs the back and can't arrive by complete observation with eyes, leak source between card weld seam leak source, card and the filter bag, adopt fluorescent material to hunt leak, leaking out and breakage of check card, filter bag, and the sealing between card and the filter bag, reduce leak source, avoid the erosive wear of air-flow to filter bag.
Carrying out the dust precoating at last handles: the gas approach at deduster is provided with the pre-coating device of dust, before oil drop stove or oily coal multifuel combustion, filter bag of dust collector is carried out the dust precoating, prevents the generation of greasy dirt paste bag phenomenon.
1) preparation and sequence requirement before the dust precoating: the precoating dust should be selected the thin dry powder of deduster collection for use or preferentially select a small amount of 1200 order talcum powder for use.
2) order of dust precoating and method: open the blind flange of the dust precoating mouth of pipe, connect the dust suction rubber hose; Open the stop valve that deduster is imported and exported; Revolution location blowback mechanism all must be parked in the blind plate place, and cuts off the electricity supply; Sweep-up pipe is inserted pre-dusting heap carry out the negative pressure dust suction, dust slowly is coated onto the filter bag outer surface in advance.The most handy flyash silo car directly connects the pre-coating device of dust and carries out the dust precoating; The pressure reduction of observing differential pressure gauge shows; when rising to 400Pa-600Pa, pressure reduction should stop dust suction; dust precoating suction port blind flange is installed; the dust precoating is all over; observe by the air-purifying chamber light-illuminating whether precoating puts in place by detecting peephole; can wait for the ignition of the boiler operation after qualified, require air-introduced machine not shut down after the precoating and have enough air quantity to suck not come off with assurance precoating dust.
Claims (1)
1. 600MW unit bag-type dust remover meta-synthesis construction method, may further comprise the steps: in ground attachment rail (14), crane (15) is set on the track (14), the position of the sack cleaner in track (14) and the design overlaps substantially, move back since the 8th cell position earlier and hang installation, install and after Unit the 8th finishes Unit the 7th is installed again, progressively remove ineffective track when hanging moving back, install when retreating to Unit the 5th successively, crane can not satisfy and covered seven fully this moment, the structure of the inside of Unit eight is installed, utilize the track of deduster front and back wallboard then as walking mechanism, then small-sized gantry crane is placed on the front and back the top of a wall of already installed wallboard formation, this gantry crane has walking mechanism and utilizes wallboard to move for guide rail, and gantry crane (16) is installed deduster equipment: card beam, card, top board, roof truss, crane (15) and gantry crane (16) are worked simultaneously, lift successively to first module to finish;
Wherein the installation steps of any one unit are: the first step is that bottom steel structure (1) is installed, and the second step ash bucket (2) is installed; The 3rd step casing (7) is installed; In the 4th step, import smoke box (4), outlet smoke box (8) are installed; Small-sized gantry crane is placed on the already installed unit, carried out for the 5th step then, the installation of the card assembly (6) that card beam and card constitute; In the 6th step, loop chain mechanism installs; The installation of the 7th step top cover (10); The 8th step blowback wind system (9) and flue gas exchange system are installed; The 9th step: the installation of the filter bag device (5) that filter cage, filter bag are formed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009102278059A CN101721862B (en) | 2009-12-12 | 2009-12-12 | Meta-synthesis construction method of 600MW unit bag-type dust remover |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009102278059A CN101721862B (en) | 2009-12-12 | 2009-12-12 | Meta-synthesis construction method of 600MW unit bag-type dust remover |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101721862A CN101721862A (en) | 2010-06-09 |
CN101721862B true CN101721862B (en) | 2011-08-03 |
Family
ID=42443780
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2009102278059A Active CN101721862B (en) | 2009-12-12 | 2009-12-12 | Meta-synthesis construction method of 600MW unit bag-type dust remover |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN101721862B (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102494536B (en) * | 2011-12-05 | 2013-09-25 | 中冶天工集团有限公司 | Construction method for dust-fall pipe of sintering chamber |
CN102641632B (en) * | 2012-04-12 | 2013-05-01 | 江苏精亚环境科技有限公司 | Three-dimensional suction arm movement mechanism of cellular dust collector |
CN104881509B (en) * | 2015-02-06 | 2017-11-28 | 安徽欣创节能环保科技股份有限公司 | A kind of bag-type dust removing system digitized simulation platform and its method for building up |
CN106237739A (en) * | 2016-08-22 | 2016-12-21 | 中材装备集团有限公司 | A kind of sack cleaner experimental system and experimental technique thereof |
CN107469493A (en) * | 2017-09-26 | 2017-12-15 | 浙江诸安建设集团有限公司 | A kind of sack cleaner installation method |
-
2009
- 2009-12-12 CN CN2009102278059A patent/CN101721862B/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN101721862A (en) | 2010-06-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101829470B (en) | Construction technique of electric bag compound type dust remover | |
CN101721862B (en) | Meta-synthesis construction method of 600MW unit bag-type dust remover | |
CN110104569A (en) | A kind of method and apparatus of municipal pipeline auxiliary installation | |
CN102235107B (en) | Hydraulic lifting construction method for chimney steel inner cylinder | |
CN106836836B (en) | A kind of secondary hydraulic lifting installation method of Flue Gas Desulphurization for Coal-burning Power Plant tower transformation | |
CN206616184U (en) | Coke oven loss flue dust dust gathering arrester supporting construction | |
CN102168858A (en) | Manufacturing process for shipping chimney unit module | |
CN104941805A (en) | Wet electric precipitation system mounting method | |
CN101858161A (en) | Construction method of low-temperature double-wall storage tanks | |
CN106150518A (en) | A kind of simulation assembling method of duct pieces of shield tunnel | |
CN113818692A (en) | Construction method of smoke exhaust duct externally coated with fireproof plate | |
CN105448366A (en) | Nuclear power plant condenser mounting method | |
CN106016233A (en) | Boiler roof with long span and fewer welding spots and hoisting method for boiler roof | |
CN112550625A (en) | Building method of double-chimney block of ship | |
CN111594841B (en) | Reverse-pushing mechanical grate garbage incinerator installation construction method | |
CN207422541U (en) | A kind of underground garage air exhausting device | |
CN100489410C (en) | Technique for inner lining construction for unopened hot-blast stove furnace jacket | |
CN104949140B (en) | The spiral deslagging device of station boiler and installation method | |
CN110724783B (en) | Dismantling and installing method of waste heat boiler in converter environment-friendly reconstruction | |
CN212041836U (en) | Hoist lifting type movable dust collecting and removing vehicle | |
CN204786470U (en) | Spiral dross removal mechanism of power plant boiler | |
CN109853974A (en) | Air bearing membrane system for foundation pit operation and construction method thereof | |
CN111136065A (en) | Hoist lifting type movable dust collecting and removing vehicle | |
RU2808871C1 (en) | Safety structure for lifting steel dome of ultra-low temperature liquefied natural gas storage tank using pneumatic jack and method for lifting using pneumatic jack | |
CN213516217U (en) | Concrete pipeline leakproofness detection device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee |
Owner name: SHANXI NO 4 ELECTRIC POWER CONSTRUCTION COMPANY CH Free format text: FORMER NAME: NO.4 POWER CONSTRUCTION COMPANY OF SHANXI ELECTRIC POWER CORPORATION |
|
CP03 | Change of name, title or address |
Address after: 030012 Shanxi city of Taiyuan province Pingyang Road, Lane No. 24 Patentee after: Shanxi No.4 Electric Power Construction Company of China Energy Engineering Group Address before: 030012 Shanxi city of Taiyuan province Pingyang road two lane 24 Patentee before: Shanxi No.4 Electric Power Construction Company |