CN108247296A - Construction method is replaced in the small trepanning of catalytic cracking regenerator cyclone - Google Patents
Construction method is replaced in the small trepanning of catalytic cracking regenerator cyclone Download PDFInfo
- Publication number
- CN108247296A CN108247296A CN201810027970.9A CN201810027970A CN108247296A CN 108247296 A CN108247296 A CN 108247296A CN 201810027970 A CN201810027970 A CN 201810027970A CN 108247296 A CN108247296 A CN 108247296A
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- China
- Prior art keywords
- cyclone
- regenerator
- level
- installation
- catalytic cracking
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J38/00—Regeneration or reactivation of catalysts, in general
Abstract
Catalytic cracking regenerator cyclone aperture of the present invention replaces construction method, this construction method includes catalytic cracking regenerator cyclone and removes and install two steps, technical solution of the present invention can ensure that the duration is timely completed or fulfils ahead of schedule, can realize and meet unit in charge of construction's construction period；Construction, reduction car rental cost can be completed using 160T cranes in this arrangement and method for construction to avoid the use of 500T and more than hoisting machinery machine-team is used in conventional construction engineering；Setting setting-out place need to be not required in traditional scheme in setting setting-out place now, this programme, not only reduces labor intensity when using area can also reduce worker's setting-out simultaneously.
Description
Technical field：
The invention belongs to regenerator cyclone installation method technical fields, are specifically related to catalytic cracking regenerator cyclone
Construction method is replaced in small trepanning.
Background technology：
It is well known that regenerator is the core equipment of catalytic cracking unit, with Catalytic Cracking Technique of Heavy Oil it is continuous into
Step, the structure of regenerator also continuously improving, and present many regenerator manufactories cannot be guaranteed the duration when mounted, particularly pair
How more complicated design after the optimization of its inner part as unit in charge of construction, ensures within scheduled installation period that safety is excellent
Quality completes installation task, and construction method is particularly critical, therefore is disclosed that catalytic cracking regenerator cyclone is small in person and opens
Replace construction method in hole.
Invention content：
Technical solution of the present invention, which can be realized, meets unit in charge of construction's construction period, while the labour that can reduce worker is strong
Degree, achievees the purpose that cost efficiency is even made an earlier shipment the phase.
To reach said program purpose, the catalytic cracking regenerator cyclone aperture replaces construction method, including urging
Change cracking regenerator cyclone and remove and install two steps.
Catalytic cracking regenerator cyclone aperture of the present invention replaces construction method, the catalytic cracking regenerator
Cyclone removal step is as follows：
The first step：All manholes of regenerator are removed, internal fuel gas and oxygen analysis, after qualified, foot hand are carried out after ventilation
The operating personnel of frame could start to set up scaffold into internal regenerator, start that regenerator end socket is cut and disassembled outside regenerator
(27) top two-layer platform and accessory instrument facility.
Second step：After the completion of scaffold building, construction personnel enters internal regenerator, to regenerator end socket (27) lifting trepanning position
Internal regenerator housing wall (24), the one cyclonic device (2,1 put；8、3；7、4；6th, 5), two level cyclone (9,10；16、11；
15、12；14th, 13), dipleg (23), all positions that will be cut of lacing wire (25), distributor pipe (26) carry out setting-outs, and start brokenly
Except the lining at cutting line position.
Third walks：Cyclone lifting need to weld 32 10T lifting lugs (17), Yi Jizai on the wall of one cyclonic device position
Weld 2 10T lifting lugs (17) in the both sides that raw device end socket (27) lifts position of opening.
4th step：The level-one cyclone separator in regenerator end socket (27) lifting open area is removed, before all cyclones remove cutting
It is both needed to measure the data such as the installed height mark of cyclone, angle, carries out construction data dossier and on housing wall
Mark is carried out, 2 10T jacks A (28) are hung on the 10T lifting lugs (17) welded, and tied this cyclone with steel wire rope
It ties up, then makes 10T jacks A (28) stress, cut header (18) between a two level cyclone, dipleg (23), lacing wire (25), tear open
Except casing, bolt type sunpender at the top of one cyclonic device, cyclone is dropped down onto by regenerator bottoms by 10T jacks A (28), is waited for again
After the completion of raw device end socket (27) lifts trepanning, regenerator is moved out from position of opening by 10T jacks B (29), in trepanning model
After enclosing internal cyclones dismounting, start to cut the casing metal that regenerator end socket (27) lifts position of opening, be matched by crane (30)
It closes and completes hole for hoist trepanning operation, deformed after hole for hoist trepanning in order to prevent, hole for hoist before being cut need to be outside bore size
Enclose at 100mm installation stiffener plate, gusset thickness cannot be less than 12mm, and width cannot be less than 200mm, gusset group to need vertically into
Row.
5th step：16 cyclones of a two level of replacement are numbered, one cyclonic device (1,2,3,4,5,6,7,8), two level
Cyclone (9,10,11,12,13,14,15,16), darkened locations are lifting lug welding position in figure, at the top of each cyclone separator
Weld two lifting lugs.Since hole for hoist is limited, therefore this 16 cyclones replace lifting plan and platform are divided to be replaced one by one,
One cyclonic device is first removed, two level cyclone is then removed again, needs in advance to separate dipleg and cyclone before dismounting, one cyclonic
It is (2,1 that device, which removes lifting sequence,；8、3；7、4；6th, 5) two level cyclone dismounting sequence be (9,10；16、11；15、12；14、
13)。
6th step：Cyclone is removed by taking (7) number cyclone as an example, and 10T jacks B (29) is hung first on its Lifting Lug, is treated
After stress, start to remove header, whirlwind between (7) number cyclone top pull bar and (7) number cyclone and (15) number cyclone
Casing, bolt type sunpender at the top of device, after the completion of cutting, the suspension 10T jacks B (29) at the top of (8) number cyclone, and with (7) number
Cyclone is bundled, and then starts 10T jacks B (29) at the top of slowly loose (7) number cyclone, immediately tight (8) number cyclone
(7) number cyclone is transferred to (8) number cyclone position by top 10T jacks B (29), so previous, then it is revolved from (8) number
Wind device position is transferred to (1) number cyclone position, is then hung out regenerator through hole for hoist by crane and is transported to ground.
Catalytic cracking regenerator cyclone aperture of the present invention replaces the method for dismounting described in construction method：It is special
Sign is, will be several other described in the method with reference to described in claim 2 of cyclone remove.
Catalytic cracking regenerator cyclone aperture of the present invention replaces construction method：It is characterized in that the dismounting
In method, can directly come loose hanger pin when primary cyclone is being removed, if bolt deformation is serious, can not dismantle,
Directly old sunpender can be sliced off.The pipeline of DN800 between two level cyclone separator and riser is cut when secondary cyclone is removed,
It needs strictly to be removed in the cutting position of secondary cyclone and collection chamber, removal position is set for lining baffle ring
In label range.
Catalytic cracking regenerator cyclone aperture of the present invention replaces construction method, which is characterized in that the peace
It is as follows to fill step：The first step：It is according to removing the inverse process having bad luck and having bad luck to installation site i.e. first installation to number by cyclone
(13) two level cyclone separator finally installs the level-one cyclone separator that number is (2), has bad luck cyclone before installation and puts installation site, position
Put determine after first installation number be (13) two level cyclone, then successively installation number be (13,14,12,15,11,16,10,
9) two level cyclone finally installs the one cyclonic device that number is (5,6,4,7,3,8,1,2) successively again.
Second step：After the cyclone is moved to installation upright position, using surrounding lifting lug (14), suspension jack (15) is micro-
Adjust cyclone orientation, it is therefore an objective to cyclone is made to reach installation position and mounting height, then welding two level cyclone with
Connecting pipeline between collection chamber (19) after the level-one cyclone separator is installed in place, is then installed at the top of level-one cyclone separator and is drawn
Header (18) between bar and a two level cyclone separator of group pair, needs before installation by I and II cyclone centering, can be in cyclone
The four direction of first of position while welding hangs four line pendants (22) under header, and it is vertical that it is then measured in cyclone bottom
It spends and centering is carried out to center.
Third walks：The spin material leg (20) of one or two cyclones is treated to utilize whirlwind group after the installation completely of each whirlwind group is in place
Lower end lifting lug is had bad luck to installation site, need to be prevented from sending out during installation according to drawing by its label successively before dipleg (20) installation
Raw unnecessary mistake.
Catalytic cracking regenerator cyclone aperture of the present invention replaces construction method, which is characterized in that the weldering
100% coloration detection is all carried out after seam welding, reaches I level testings qualification.
Beneficial effects of the present invention are as follows：
It can ensure that the duration is timely completed or fulfils ahead of schedule, can realize and meet unit in charge of construction's construction period；
It can make in this arrangement and method for construction to avoid the use of 500T and more than hoisting machinery machine-team is used in conventional construction engineering
Construction can be completed with 160T cranes, reduce car rental cost；
Setting setting-out place need to be not required in traditional scheme in setting setting-out place now, this programme, not only reduces and uses
Place can also reduce labor intensity during worker's setting-out simultaneously.
Description of the drawings：
Fig. 1 is the rotation for the internal regenerator that catalytic cracking regenerator cyclone aperture of the present invention is replaced described in construction method
Wind device dimensional structure diagram.
Fig. 2 is that the line that catalytic cracking regenerator cyclone aperture of the present invention is replaced described in construction method falls schematic diagram.
Fig. 3 is that the two level cyclone that catalytic cracking regenerator cyclone aperture of the present invention is replaced described in construction method is hung
Number schematic diagram.
Fig. 4 is that the cyclone separator that catalytic cracking regenerator cyclone aperture of the present invention is replaced described in construction method lifts
Schematic diagram.
The serial number marked in Fig. 1-Fig. 4 represents respectively：One cyclonic device (2,1；8、3；7、4；6th, 5), two level cyclone
(9、10；16、11；15、12；14th, 13), lifting lug (17), header (18), collection chamber (19), dipleg (20), line pendant (22), dipleg
(23), inner shell wall (24), lacing wire (25), distributor pipe (26), regenerator end socket (27), jack A (28), jack B (29),
Crane (30)
Specific embodiment：
1- Fig. 4 replaces construction method to catalytic cracking regenerator cyclone aperture of the present invention and does further below in conjunction with the accompanying drawings
It is described in detail.
To reach said program purpose, the catalytic cracking regenerator cyclone aperture replaces construction method, feature
It is, including removing and installing two steps.
Catalytic cracking regenerator cyclone aperture of the present invention replaces construction method, which is characterized in that described tears open
Except step is as follows：The first step：All manholes of regenerator are removed, internal fuel gas and oxygen analysis are carried out after ventilation, it is qualified
Afterwards, the operating personnel of scaffold could start to set up scaffold into internal regenerator, start cutting disassembling outside regenerator again
Two-layer platform and accessory instrument facility at the top of raw device end socket (27).
Second step：After the completion of scaffold building, construction personnel enters internal regenerator, to regenerator end socket (27) lifting trepanning position
Internal regenerator housing wall (24), the one cyclonic device (2,1 put；8、3；7、4；6th, 5), two level cyclone (9,10；16、11；
15、12；14th, 13), dipleg (23), all positions that will be cut of lacing wire (25), distributor pipe (26) carry out setting-outs, and start brokenly
Except the lining at cutting line position.
Third walks：Cyclone lifting need to weld 32 10T lifting lugs (17), Yi Jizai on the wall of one cyclonic device position
Weld 2 10T lifting lugs (17) in the both sides that raw device end socket (27) lifts position of opening.
4th step：The level-one cyclone separator in regenerator end socket (27) lifting open area is removed, before all cyclones remove cutting
It is both needed to measure the data such as the installed height mark of cyclone, angle, carries out construction data dossier and on housing wall
Mark is carried out, 2 10T jacks A (28) are hung on the 10T lifting lugs (17) welded, and tied this cyclone with steel wire rope
It ties up, then makes 10T jacks A (28) stress, cut header (18) between a two level cyclone, dipleg (23), lacing wire (25), tear open
Except casing, bolt type sunpender at the top of one cyclonic device, cyclone is dropped down onto by regenerator bottoms by 10T jacks A (28), is waited for again
After the completion of raw device end socket (27) lifts trepanning, regenerator is moved out from position of opening by 10T jacks B (29), in trepanning model
After enclosing internal cyclones dismounting, start to cut the casing metal that regenerator end socket (27) lifts position of opening, be matched by crane (30)
It closes and completes hole for hoist trepanning operation, deformed after hole for hoist trepanning in order to prevent, hole for hoist before being cut need to be outside bore size
Enclose at 100mm installation stiffener plate, gusset thickness cannot be less than 12mm, and width cannot be less than 200mm, gusset group to need vertically into
Row.
5th step：16 cyclones of a two level of replacement are numbered, one cyclonic device (1,2,3,4,5,6,7,8), two level
Cyclone (9,10,11,12,13,14,15,16), darkened locations are lifting lug welding position in figure, at the top of each cyclone separator
Weld two lifting lugs.Since hole for hoist is limited, therefore this 16 cyclones replace lifting plan and platform are divided to be replaced one by one,
One cyclonic device is first removed, two level cyclone is then removed again, needs in advance to separate dipleg and cyclone before dismounting, one cyclonic
It is (2,1 that device, which removes lifting sequence,；8、3；7、4；6th, 5) two level cyclone dismounting sequence be (9,10；16、11；15、12；14、
13)。
6th step：Cyclone is removed by taking (7) number cyclone as an example, and 10T jacks B (29) is hung first on its Lifting Lug, is treated
After stress, start to remove header, whirlwind between (7) number cyclone top pull bar and (7) number cyclone and (15) number cyclone
Casing, bolt type sunpender at the top of device, after the completion of cutting, the suspension 10T jacks B (29) at the top of (8) number cyclone, and with (7) number
Cyclone is bundled, and then starts 10T jacks B (29) at the top of slowly loose (7) number cyclone, immediately tight (8) number cyclone
(7) number cyclone is transferred to (8) number cyclone position by top 10T jacks B (29), so previous, then it is revolved from (8) number
Wind device position is transferred to (1) number cyclone position, is then hung out regenerator through hole for hoist by crane and is transported to ground.
Catalytic cracking regenerator cyclone aperture of the present invention replaces the method for dismounting described in construction method：It is special
Sign is, will be several other described in the method with reference to described in claim 2 of cyclone remove.
Catalytic cracking regenerator cyclone aperture of the present invention replaces construction method：It is characterized in that the dismounting
In method, can directly come loose hanger pin when primary cyclone is being removed, if bolt deformation is serious, can not dismantle,
Directly old sunpender can be sliced off.The pipeline of DN800 between two level cyclone separator and riser is cut when secondary cyclone is removed,
It needs strictly to be removed in the cutting position of secondary cyclone and collection chamber, removal position is set for lining baffle ring
In label range.
Catalytic cracking regenerator cyclone aperture of the present invention replaces construction method, which is characterized in that the peace
It is as follows to fill step：The first step：It is according to removing the inverse process having bad luck and having bad luck to installation site i.e. first installation to number by cyclone
(13) two level cyclone separator finally installs the level-one cyclone separator that number is (2), has bad luck cyclone before installation and puts installation site, position
Put determine after first installation number be (13) two level cyclone, then successively installation number be (13,14,12,15,11,16,10,
9) two level cyclone finally installs the one cyclonic device that number is (5,6,4,7,3,8,1,2) successively again.
Second step：After the cyclone is moved to installation upright position, using surrounding lifting lug (14), suspension jack (15) is micro-
Adjust cyclone orientation, it is therefore an objective to cyclone is made to reach installation position and mounting height, then welding two level cyclone with
Connecting pipeline between collection chamber (19) after the level-one cyclone separator is installed in place, is then installed at the top of level-one cyclone separator and is drawn
Header (18) between bar (17) and a two level cyclone separator of group pair, needs, by I and II cyclone centering, to revolve before installation
The four direction of first of position while welding hangs four line pendants (22) under wind device header, then measures it in cyclone bottom
Verticality and to center carry out centering.
Third walks：The spin material leg (20) of one or two cyclones is treated to utilize whirlwind group after the installation completely of each whirlwind group is in place
Lower end lifting lug is had bad luck to installation site, need to be prevented from sending out during installation according to drawing by its label successively before dipleg (20) installation
Raw unnecessary mistake.
Catalytic cracking regenerator cyclone aperture of the present invention replaces construction method, which is characterized in that the weldering
100% coloration detection is all carried out after seam welding, reaches I level testings qualification.
Technical solution of the present invention can ensure that the duration is timely completed or fulfils ahead of schedule, can realize and meet unit in charge of construction's duration
It is required that；It can be used in this arrangement and method for construction to avoid the use of 500T and more than hoisting machinery machine-team is used in conventional construction engineering
Construction can be completed in 160T cranes, reduces car rental cost；It need to be not required in setting setting-out place now, this programme in traditional scheme
Setting-out place is set, not only reduces labor intensity when using area can also reduce worker's setting-out simultaneously.
Claims (6)
1. catalytic cracking regenerator cyclone aperture replaces construction method, which is characterized in that including catalytic cracking regenerator whirlwind
Device is removed and two steps of installation.
2. catalytic cracking regenerator cyclone aperture according to claim 1 replaces construction method, which is characterized in that described
Catalytic cracking regenerator cyclone removal step it is as follows：
The first step：All manholes of regenerator are removed, internal fuel gas and oxygen analysis, after qualified, foot hand are carried out after ventilation
The operating personnel of frame could start to set up scaffold into internal regenerator, start that regenerator end socket is cut and disassembled outside regenerator
(27) top two-layer platform and accessory instrument facility；Second step：After the completion of scaffold building, construction personnel enters in regenerator
Portion, to internal regenerator housing wall (24), the one cyclonic device (2,1 of regenerator end socket (27) lifting position of opening；8、3；7、
4；6th, 5), two level cyclone (9,10；16、11；15、12；14th, 13), dipleg (23), lacing wire (25), distributor pipe (26) are all will
The position to be cut carries out setting-out, and starts to abolish the lining at cutting line position；Third walks：Cyclone lifting need to be in one cyclonic
The both sides weldering of 32 10T lifting lugs (17) and regenerator end socket (27) lifting position of opening is welded on the wall of device position
Connect 2 10T lifting lugs (17)；4th step：Remove the level-one cyclone separator in regenerator end socket (27) lifting open area, all whirlwind
Device is both needed to measure the data such as the installed height mark of cyclone, angle before removing cutting, carries out construction data dossier simultaneously
Mark is carried out on housing wall, on the 10T lifting lugs (17) welded hang 2 10T jacks A (28), and with steel wire rope by this
Cyclone is bundled, and then makes 10T jacks A (28) stress, cuts header (18), dipleg between a two level cyclone
(23), lacing wire (25) remove casing, bolt type sunpender at the top of one cyclonic device, are dropped down onto cyclone by 10T jacks A (28)
Regenerator bottoms after the completion of waiting for regenerator end socket (27) lifting trepanning, are moved from position of opening by 10T jacks B (29)
Go out regenerator, after the dismounting of open area internal cyclones, start to cut the housing gold that regenerator end socket (27) lifts position of opening
Belong to, coordinated by crane (30) and complete hole for hoist trepanning operation, deformed after hole for hoist trepanning in order to prevent, hole for hoist is in cutting
Before stiffener plate need to be installed at the 100mm of bore size periphery, gusset thickness cannot be less than 12mm, and width cannot be less than 200mm,
Gusset group is to need to vertically carry out；5th step：16 cyclones of a two level of replacement are numbered, one cyclonic device (1,2,
3,4,5,6,7,8), two level cyclone (9,10,11,12,13,14,15,16), in the symmetrical position in both sides of each whirlwind of a two level
It is lifting lug welding position to put, two lifting lugs of welding at the top of each cyclone separator, since hole for hoist is limited, therefore 16 whirlwind
Device replaces lifting plan and platform is divided to be replaced one by one, first removes one cyclonic device, then removes two level cyclone again, removes
Before dipleg and cyclone need to be separated in advance, one cyclonic device remove lifting sequence be (2,1；8、3；7、4；6th, 5) two level whirlwind
Device dismounting sequence is (9,10；16、11；15、12；14、13)；6th step：Cyclone is removed by taking (7) number cyclone as an example, first
10T jacks B (29) is hung on its Lifting Lug, after stress, starts to remove (7) number cyclone top pull bar and (7) number rotation
Casing, bolt type sunpender at the top of header, cyclone between wind device and (15) number cyclone, after the completion of cutting, in (8) number whirlwind
Suspension 10T jacks B (29) at the top of device, and bundled with (7) number cyclone, then start slowly loose (7) number cyclone top
Portion 10T jacks B (29), 10T jacks B (29) at the top of tight (8) number cyclone, (8) number whirlwind is transferred to by (7) number cyclone immediately
Device position, it is so previous, then it is transferred to (1) number cyclone position from (8) number cyclone position, then by crane through hanging
Dress hole is hung out regenerator and is transported to ground.
3. catalytic cracking regenerator cyclone aperture according to claim 2 replaces the dismounting side described in construction method
Method：It is characterized in that, the method for cyclone with reference to described in claim 2 described in will be several other is removed.
4. the catalytic cracking regenerator cyclone aperture according to Claims 2 or 3 replaces construction method：It is characterized in that institute
In the method for dismounting stated, can directly come loose hanger pin when primary cyclone is being removed, if bolt deformation is serious, nothing
Method is dismantled, and can directly be sliced off old sunpender, DN800 between cutting two level cyclone separator and riser when secondary cyclone is removed
Pipeline, need strictly be removed in the cutting position of secondary cyclone and collection chamber, removal position be lining baffle ring thing
First in ready-made label range.
5. catalytic cracking regenerator cyclone aperture according to claim 1 replaces construction method, which is characterized in that described
Catalytic cracking regenerator cyclone installation steps it is as follows：
The first step：Cyclone is had bad luck to installation site according to the inverse process that dismounting is had bad luck, the two level that number is (13) is first installed
Cyclone separator finally installs the level-one cyclone separator that number is (2), has bad luck cyclone before installation and puts installation site, first after location determination
First installation number is the two level cyclone of (13), then installation number is the two level rotation of (13,14,12,15,11,16,10,9) successively
Wind device finally installs the one cyclonic device that number is (5,6,4,7,3,8,1,2) successively again；Second step：By the cyclone
After being moved to installation upright position, surrounding lifting lug (17), the orientation of suspension jack fine tuning cyclone, it is therefore an objective to make cyclone are utilized
Reach installation position and mounting height, then the connecting pipeline between welding two level cyclone and collection chamber (19), described
Level-one cyclone separator be installed in place after, then install level-one cyclone separator top bolt formula pull rod (20) and group pair a two level rotation point
Header (18) between device is needed before installation by I and II cyclone centering, can under cyclone header first of position while welding
Four direction hang four lines pendant (22), then measure its verticality in cyclone bottom and center looked for
Just；Third walks：The spin material leg (23) of one or two cyclones is treated to utilize whirlwind group after the installation completely of each whirlwind group is in place
Lower end lifting lug is had bad luck to installation site, need to be prevented from sending out during installation according to drawing by its label successively before dipleg (23) installation
Raw unnecessary mistake.
6. catalytic cracking regenerator cyclone aperture according to claim 5 replaces construction method, which is characterized in that described
Weld seam welding after all carry out 100% coloration detection, reach I level testings qualification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810027970.9A CN108247296A (en) | 2018-01-11 | 2018-01-11 | Construction method is replaced in the small trepanning of catalytic cracking regenerator cyclone |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810027970.9A CN108247296A (en) | 2018-01-11 | 2018-01-11 | Construction method is replaced in the small trepanning of catalytic cracking regenerator cyclone |
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| CN108247296A true CN108247296A (en) | 2018-07-06 |
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|---|---|---|---|
| CN201810027970.9A Pending CN108247296A (en) | 2018-01-11 | 2018-01-11 | Construction method is replaced in the small trepanning of catalytic cracking regenerator cyclone |
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| CN112537724A (en) * | 2020-11-27 | 2021-03-23 | 广东茂化建集团有限公司 | Rail type replacing method for cyclone separator in two catalytic cracking units |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112537724A (en) * | 2020-11-27 | 2021-03-23 | 广东茂化建集团有限公司 | Rail type replacing method for cyclone separator in two catalytic cracking units |
| CN112537724B (en) * | 2020-11-27 | 2023-08-08 | 广东茂化建集团有限公司 | Rail type replacement method for cyclone separator in two devices of catalytic cracking device |
| CN113399911A (en) * | 2021-06-10 | 2021-09-17 | 中车唐山机车车辆有限公司 | Clamping device |
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