CN105755204A - Mounting method of converter oxygen lance equipment - Google Patents
Mounting method of converter oxygen lance equipment Download PDFInfo
- Publication number
- CN105755204A CN105755204A CN201610231619.2A CN201610231619A CN105755204A CN 105755204 A CN105755204 A CN 105755204A CN 201610231619 A CN201610231619 A CN 201610231619A CN 105755204 A CN105755204 A CN 105755204A
- Authority
- CN
- China
- Prior art keywords
- oxygen
- oxygen lance
- transverse
- side guide
- furnace roof
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4606—Lances or injectors
- C21C5/462—Means for handling, e.g. adjusting, changing, coupling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The invention provides a mounting method of converter oxygen lance equipment.The mounting method comprises the following construction methods: 1, guide track mounting, 2, arrangement of a supporting device, 3, assembly of the oxygen lance equipment; and 4, hoisting of the oxygen lance equipment.The simple supporting device is arranged by an oxygen lance hoisting reserved hole of a lower-layer platform, offline assembling of the oxygen lance equipment is carried out under the supporting effect of the device, and after being formed, a whole body is directly mounted at an arranged position by a converter top traveling crane.Construction risks are reduced, work efficiency is improved, and the progress of engineering construction is guaranteed.
Description
Technical field
The invention belongs to equipment mounting technique field, particularly to the installation method of a kind of converter oxygen gun equipment.
Background technology
Oxygen lance is one of key equipment of steelmaking converter, the reciprocating action in guide rail by Traverse Displacement Unit and lift cart, completes to bessemerize required oxygen rifle and enters and exit.nullOxygen lance adopts 3 cantilevereds to be arranged on converter high level platform Lin Bianchu，Equipment mainly includes guide rail、Transverse-moving trolley、Winding plant platform、Lift cart and hoisting device composition，Common installation method is online by transverse-moving trolley with Converter top line car、Winding plant platform、Hoisting device and lift cart sub-unit assemble online，And the supported at three point running roller of equipment，Wherein have be arranged on transverse-moving trolley at 2，Any is arranged on winding plant platform，It is released state that equipment has just started transverse-moving trolley and winding plant platform during group pair，3 robust structure cannot be realized，Respectively transverse-moving trolley and winding plant platform are fixed frequently with chain block，Device structure steadiness is inadequate，And belong to high-altitude and face limit operation，It is susceptible to equipment and the dangerous risk of personnel，Easily cause efficiency of construction when work high above the ground low simultaneously，Directly govern the construction speed of engineering.
Summary of the invention
The technical problem to be solved in the present invention is to overcome existing defect, there is provided the installation method of a kind of converter oxygen gun equipment, it is achieved the work in place of oxygen lance safety, reduce the risk of economic loss, ensure the progress of engineering construction, it is possible to effectively solve the problem in background technology.
In order to solve above-mentioned technical problem, the invention provides following technical scheme:
The present invention provides the installation method of a kind of converter oxygen gun equipment, and construction procedure includes: one, guide rails assembling；Two, prop up support arrangement to arrange；Three, oxygen lance group pair；Four, oxygen lance lifting.
As a preferred technical solution of the present invention, described guide rails assembling:
1) construction drawing installed according to the middle delivering-receiving document of steel construction offer and oxygen lance is conscientiously checked, and checks the dimensional discrepancy of steel structure water level gauge and the first side guide, the second side guide place, should meet device requirement.
2) drive a vehicle fixing guide rail, horizontal guide rail and the first side guide, the first side guide installation in position according to oxygen lance installation drawing position with furnace roof, ensure fixing guideway centreline and converter oxygen gun center superposition, deviation controls at ± 1mm, and the parallel misalignment of horizontal guide rail and the first side guide, the first side guide can not more than ± 1mm.
As a preferred technical solution of the present invention, described support arrangement is arranged:
Oxygen rifle at low-level platform lifts above reserving hole, be arranged in parallel two H profile steel by spacing 1.5m, and model is HM200 × 150, and cross-arm lifts the platform upper surface of reserving hole in oxygen rifle, completes the setting of a support arrangement.
As a preferred technical solution of the present invention, described oxygen lance group pair:
1) utilize furnace roof driving by oxygen rifle transverse-moving trolley by required direction in place, it is inserted perpendicularly in oxygen rifle lifting reserving hole, and control its upper surface slightly above lifting reserving hole platform upper surface 300mm, by two H profile steel through transverse-moving trolley, complete the support works of transverse-moving trolley.
2) winding plant platform being lifted into transverse-moving trolley upper surface, the group completing winding plant platform and transverse-moving trolley by Design Requirement Drawing is right.
3) utilize furnace roof driving that hoisting device feature is in place to the position of setting on winding plant platform successively, and it is right to complete the group of parts by drawing and code requirement, complete the integrated connection of oxygen rifle Traverse Displacement Unit, it is achieved the low latitude off-line assembly working of transverse-moving trolley, winding plant platform and hoisting device
As a preferred technical solution of the present invention, described oxygen lance lifts:
1) slightly sling the integral device structure of oxygen rifle Traverse Displacement Unit be made up of transverse-moving trolley, winding plant platform and hoisting device with furnace roof driving so that it is weight is born by H profile steel and transferred to furnace roof driving stress, withdraws from two H profile steel originally arranged.
2) continue to hoist the integral device structure of oxygen rifle Traverse Displacement Unit with the main suspension hook of furnace roof driving, until being lifted into the position that oxygen lance drawing is arranged, and control the horizontal running roller of transverse-moving trolley and the second side running roller contacts with horizontal guide rail and the second side guide respectively, and the hoist controlling that the main suspension hook of holding furnace top line car is to oxygen rifle Traverse Displacement Unit integral device structure.
3) with the auxiliary hook of furnace roof driving, the first side guide running roller is lifted to design attitude, complete side guide running roller by bolt and be connected with winding plant platform, and contact with the first side guide, it is achieved oxygen lance main body is in place.Withdraw from the furnace roof driving major and minor hook control to oxygen rifle Traverse Displacement Unit integral device structure.
4) with furnace roof driving, lift cart, oxygen rifle and other adnexaes are put in place by the installation of oxygen lance Design Requirement Drawing again, complete the erector of oxygen lance.
Compared with prior art the present invention reaches to provide the benefit that: the present invention utilizes the oxygen rifle lifting reserving hole of low-level platform, Simple supporting device is set, the off-line carrying out oxygen lance under its device supports assembles, and after forming one, the driving of entirety furnace roof to be mounted directly to arrange position.Reduce construction risk, improve work efficiency, it is ensured that the progress of engineering construction.
Accompanying drawing explanation
Accompanying drawing is for providing a further understanding of the present invention, and constitutes a part for description, is used for together with embodiments of the present invention explaining the present invention, is not intended that limitation of the present invention.
In the accompanying drawings:
The installation method transverse-moving trolley low-level platform that Fig. 1 is a kind of converter oxygen gun equipment proposed by the invention is supported on schematic diagram；
Fig. 2 is that winding plant platform assembles schematic diagram with transverse-moving trolley；
Fig. 3 is that hoisting device assembles schematic diagram with winding plant platform；
Fig. 4 is the A-A sectional view of Fig. 3；
Fig. 5 is oxygen rifle Traverse Displacement Unit integral device structure hoisting schematic diagram；
Fig. 6 is the lifting schematic diagram such as lift cart, oxygen rifle；
Number in the figure: 1, horizontal guide rail；2-1, the first side guide；2-2, the second side guide；3, fixing guide rail；4-1, transverse-moving trolley；4-2, winding plant platform；4-3, hoisting device 4-4, the first side running roller；4-5, horizontal running roller；4-6, the second side running roller；5, furnace roof driving；6, H profile steel；7, low-level platform.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are illustrated, it will be appreciated that preferred embodiment described herein is merely to illustrate and explains the present invention, is not intended to limit the present invention.
Embodiment: as shown in figures 1 to 6, the installation method of a kind of converter oxygen gun equipment present invention proposed below in conjunction with accompanying drawing is described in further detail.
Construction procedure is:
As it is shown in figure 1, step one guide rails assembling
1, the construction drawing installed according to the middle delivering-receiving document of steel construction offer and oxygen lance is conscientiously checked, and checks the dimensional discrepancy of steel structure water level gauge 1 and the first side guide 2-1, the second side guide 2-2 place, should meet device requirement.
2, with furnace roof drive a vehicle 5 according to oxygen lance installation drawing position by fixing guide rail 3, horizontal guide rail 1 and the first side guide 2-1, the first side guide 2-2 installation in position, ensure fixing guide rail 3 center and converter oxygen gun 9 center superposition, deviation controls at ± 1mm, and the parallel misalignment of horizontal guide rail 1 and the first side guide 2-1, the first side guide 2-2 can not more than ± 1mm.
As shown in Figure 1, Figure 2, Figure 4 shows, step 2 props up support arrangement setting
Oxygen rifle at low-level platform 7 lifts above reserving hole, be arranged in parallel two H profile steel 6 by spacing 1.5m, and model is HM200 × 150, and cross-arm lifts platform 7 upper surface of reserving hole in oxygen rifle, completes the setting of a support arrangement.
As shown in Figure 3, Figure 4, step 3 oxygen lance group pair
1, utilize furnace roof driving 5 by oxygen rifle transverse-moving trolley 4-1 by required direction in place, it is inserted perpendicularly in oxygen rifle lifting reserving hole, and control its upper surface slightly above lifting reserving hole platform 7 upper surface 300mm, by two H profile steel 6 through transverse-moving trolley 4-1, complete the support works of transverse-moving trolley 4-1.
2, winding plant platform 4-2 being lifted into transverse-moving trolley 4-1 upper surface, the group completing winding plant platform 4-2 and transverse-moving trolley 4-1 by Design Requirement Drawing is right.
3, utilize furnace roof driving 5 that hoisting device 4-3 parts are in place to the position of setting on winding plant platform 4-2 successively, and it is right to complete the group of parts by drawing and code requirement, complete the integrated connection of oxygen rifle Traverse Displacement Unit, it is achieved the low latitude off-line assembly working of transverse-moving trolley 4-1, winding plant platform 4-2 and hoisting device 4-3.
As shown in Figure 5, Figure 6, step 4 oxygen lance lifting
1, drive a vehicle the 5 integral device structures slightly slinging the oxygen rifle Traverse Displacement Unit being made up of transverse-moving trolley 4-1, winding plant platform 4-2 and hoisting device 4-3 with furnace roof, make its weight be born by H profile steel 6 to transfer to furnace roof and drive a vehicle 5 stress, withdraw from two H profile steel 6 of original setting.
2, with furnace roof drive a vehicle 5 main suspension hook continue to hoist the integral device structure of oxygen rifle Traverse Displacement Unit, until being lifted into the position that oxygen lance drawing is arranged, and the horizontal running roller 4-5 and the second side running roller 4-6 that control transverse-moving trolley 4-1 contact with horizontal guide rail 1 and the second side guide 2-2 respectively, and the hoist controlling that the main suspension hook of holding furnace top line car 5 is to oxygen rifle Traverse Displacement Unit integral device structure.
3, with the auxiliary hook of furnace roof driving 5, first side guide running roller 4-4 is lifted to design attitude, complete side guide running roller 4-4 by bolt and be connected with winding plant platform 4-2, and contact with the first side guide 2-1, it is achieved oxygen lance main body is in place.Withdraw from furnace roof to drive a vehicle the control to oxygen rifle Traverse Displacement Unit integral device structure of the 5 major and minor hooks.
4, with furnace roof driving 5, lift cart 8, oxygen rifle 9 and other adnexaes are put in place by the installation of oxygen lance Design Requirement Drawing again, complete the installment work of oxygen lance.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, it is not limited to the present invention, although the present invention being described in detail with reference to previous embodiment, for a person skilled in the art, technical scheme described in foregoing embodiments still can be modified by it, or wherein portion of techniques feature carries out equivalent replacement.All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (5)
1. the installation method of a converter oxygen gun equipment, it is characterised in that construction procedure includes: one, guide rails assembling；Two, prop up support arrangement to arrange；Three, oxygen lance group pair；Four, oxygen lance lifting.
2. the installation method of a kind of converter oxygen gun equipment according to claim 1, it is characterised in that described guide rails assembling；
1) construction drawing installed according to the middle delivering-receiving document of steel construction offer and oxygen lance is conscientiously checked, and checks the dimensional discrepancy of steel structure water level gauge (1) and the first side guide (2-1), the second side guide (2-2) place, should meet device requirement；
2) with furnace roof drive a vehicle (5) according to oxygen lance installation drawing position by fixing guide rail (3), horizontal guide rail (1) and the first side guide (2-1), the first side guide (2-2) installation in position, ensure fixing guide rail (3) center and converter oxygen gun (9) center superposition, deviation controls at ± 1mm, and the parallel misalignment of horizontal guide rail (1) and the first side guide (2-1), the first side guide (2-2) can not more than ± 1mm.
3. the installation method of a kind of converter oxygen gun equipment according to claim 1, it is characterised in that described support arrangement is arranged；
Oxygen rifle at low-level platform (7) lifts above reserving hole, be arranged in parallel two H profile steel (6) by spacing 1.5m, and model is HM200 × 150, and cross-arm lifts platform (7) upper surface of reserving hole in oxygen rifle, completes the setting of a support arrangement.
4. the installation method of a kind of converter oxygen gun equipment according to claim 1, it is characterised in that described oxygen lance group pair；
1) utilize furnace roof driving (5) by oxygen rifle transverse-moving trolley (4-1) by required direction in place, it is inserted perpendicularly in oxygen rifle lifting reserving hole, and control its upper surface slightly above lifting reserving hole platform (7) upper surface 300mm, by two H profile steel (6) through transverse-moving trolley (4-1), complete the support works of transverse-moving trolley (4-1)；
2) winding plant platform (4-2) being lifted into transverse-moving trolley (4-1) upper surface, the group completing winding plant platform (4-2) and transverse-moving trolley (4-1) by Design Requirement Drawing is right；
3) utilize furnace roof driving (5) that hoisting device (4-3) parts are in place to the upper position arranged of winding plant platform (4-2) successively, and it is right to complete the group of parts by drawing and code requirement, complete the integrated connection of oxygen rifle Traverse Displacement Unit, it is achieved the low latitude off-line assembly working of transverse-moving trolley (4-1), winding plant platform (4-2) and hoisting device (4-3).
5. the installation method of a kind of converter oxygen gun equipment according to claim 1, it is characterised in that described oxygen lance lifts；
1) with furnace roof drive a vehicle (5) slightly sling the integral device structure of the oxygen rifle Traverse Displacement Unit being made up of transverse-moving trolley (4-1), winding plant platform (4-2) and hoisting device (4-3), make its weight be born by H profile steel (6) and transfer to furnace roof driving (5) stress, withdraw from two H profile steel (6) of original setting；
2) continue to hoist the integral device structure of oxygen rifle Traverse Displacement Unit with the drive a vehicle main suspension hook of (5) of furnace roof, until being lifted into the position that oxygen lance drawing is arranged, and the horizontal running roller (4-5) controlling transverse-moving trolley (4-1) contacts with horizontal guide rail (1) and the second side guide (2-2) respectively with the second side running roller (4-6), and the hoist controlling that the main suspension hook of holding furnace top line car (5) is to oxygen rifle Traverse Displacement Unit integral device structure；
3) with the auxiliary hook of furnace roof driving (5) by the first side guide running roller (4-4) lifting to design attitude, complete side guide running roller (4-4) by bolt to be connected with winding plant platform (4-2), and contact with the first side guide (2-1), it is achieved oxygen lance main body is in place；Withdraw from furnace roof driving (5) the major and minor hook control to oxygen rifle Traverse Displacement Unit integral device structure；
4) with furnace roof driving (5), lift cart (8), oxygen rifle (9) and other adnexaes are put in place by the installation of oxygen lance Design Requirement Drawing again, complete the erector of oxygen lance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610231619.2A CN105755204B (en) | 2016-04-13 | 2016-04-13 | A kind of installation method of converter oxygen gun equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610231619.2A CN105755204B (en) | 2016-04-13 | 2016-04-13 | A kind of installation method of converter oxygen gun equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105755204A true CN105755204A (en) | 2016-07-13 |
| CN105755204B CN105755204B (en) | 2018-02-02 |
Family
ID=56334978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610231619.2A Active CN105755204B (en) | 2016-04-13 | 2016-04-13 | A kind of installation method of converter oxygen gun equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105755204B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106348152A (en) * | 2016-10-18 | 2017-01-25 | 宣化钢铁集团有限责任公司 | Hoisting appliance for safely hoisting converter sublance and hoisting method |
| CN106834599A (en) * | 2017-02-23 | 2017-06-13 | 中国十七冶集团有限公司 | A kind of converter oxygen gun lowering or hoisting gear installation method |
| CN106929628A (en) * | 2017-04-18 | 2017-07-07 | 中国十七冶集团有限公司 | The installation method of converter oxygen gun horizontal rail |
| CN107034333A (en) * | 2017-04-18 | 2017-08-11 | 中国十七冶集团有限公司 | The installation of converter oxygen gun trapped orbit, aligning method |
| CN110846462A (en) * | 2019-08-16 | 2020-02-28 | 中国十七冶集团有限公司 | Method for integrally mounting converter oxygen lance fixing rail and steel structure upright post |
| CN110984637A (en) * | 2019-12-09 | 2020-04-10 | 中国十七冶集团有限公司 | Steel structure modular installation method for steelmaking oxygen lance valve station |
| CN115466817A (en) * | 2021-06-10 | 2022-12-13 | 中冶宝钢技术服务有限公司 | Supporting and transporting device for converter oxygen lance and method for entering and exiting converter oxygen lance |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3025047A (en) * | 1960-10-11 | 1962-03-13 | Koppers Co Inc | Apparatus for the restraint and control of oxygen lances |
| US3201107A (en) * | 1961-05-18 | 1965-08-17 | Pintsch Bamag Ag | Apparatus for supporting and movably guiding oxygen lances for rotating barrel converters in production of steel |
| CN202492537U (en) * | 2012-03-09 | 2012-10-17 | 辽宁科技大学 | Converter oxygen lance lifting device |
-
2016
- 2016-04-13 CN CN201610231619.2A patent/CN105755204B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3025047A (en) * | 1960-10-11 | 1962-03-13 | Koppers Co Inc | Apparatus for the restraint and control of oxygen lances |
| US3201107A (en) * | 1961-05-18 | 1965-08-17 | Pintsch Bamag Ag | Apparatus for supporting and movably guiding oxygen lances for rotating barrel converters in production of steel |
| CN202492537U (en) * | 2012-03-09 | 2012-10-17 | 辽宁科技大学 | Converter oxygen lance lifting device |
Non-Patent Citations (1)
| Title |
|---|
| 楚金风: "转炉氧枪、副枪安装技术", 《城市建设理论研究（电子版）》 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106348152A (en) * | 2016-10-18 | 2017-01-25 | 宣化钢铁集团有限责任公司 | Hoisting appliance for safely hoisting converter sublance and hoisting method |
| CN106348152B (en) * | 2016-10-18 | 2017-12-05 | 宣化钢铁集团有限责任公司 | A kind of suspender and handling method of safety jaw fortune revolving furnace sublance |
| CN106834599A (en) * | 2017-02-23 | 2017-06-13 | 中国十七冶集团有限公司 | A kind of converter oxygen gun lowering or hoisting gear installation method |
| CN106929628A (en) * | 2017-04-18 | 2017-07-07 | 中国十七冶集团有限公司 | The installation method of converter oxygen gun horizontal rail |
| CN107034333A (en) * | 2017-04-18 | 2017-08-11 | 中国十七冶集团有限公司 | The installation of converter oxygen gun trapped orbit, aligning method |
| CN107034333B (en) * | 2017-04-18 | 2018-10-02 | 中国十七冶集团有限公司 | The installation of converter oxygen gun trapped orbit, aligning method |
| CN106929628B (en) * | 2017-04-18 | 2018-10-02 | 中国十七冶集团有限公司 | The installation method of converter oxygen gun horizontal rail |
| CN110846462A (en) * | 2019-08-16 | 2020-02-28 | 中国十七冶集团有限公司 | Method for integrally mounting converter oxygen lance fixing rail and steel structure upright post |
| CN110846462B (en) * | 2019-08-16 | 2021-08-31 | 中国十七冶集团有限公司 | Method for integrally mounting converter oxygen lance fixing rail and steel structure upright post |
| CN110984637A (en) * | 2019-12-09 | 2020-04-10 | 中国十七冶集团有限公司 | Steel structure modular installation method for steelmaking oxygen lance valve station |
| CN115466817A (en) * | 2021-06-10 | 2022-12-13 | 中冶宝钢技术服务有限公司 | Supporting and transporting device for converter oxygen lance and method for entering and exiting converter oxygen lance |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105755204B (en) | 2018-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105755204A (en) | Mounting method of converter oxygen lance equipment | |
| CN109097516A (en) | The construction method of blast furnace overhaul engineering replacement last furnace shell | |
| CN102756975A (en) | Method for hoisting rolling mill housing | |
| CN106006425A (en) | Method of hoisting and transporting large-sized equipment arranged in underground machine rooms of super high-rise buildings | |
| CN103821084B (en) | Operational method at the bottom of implement at the bottom of beam and beam | |
| CN103086276B (en) | Construction method for hoisting bridge type crane in high-rise well tower type building | |
| CN111502293A (en) | Method and system for hoisting single peripheral component of assembly type building | |
| CN207738037U (en) | A kind of coke over machinery lifting migration platform | |
| CN104210958B (en) | A kind of method of vehicle-mounted lifting RH steel ladle and device | |
| CN107934487A (en) | A kind of coke over machinery lifting migration platform and lifting moving method | |
| CN201825670U (en) | Lifting appliance used for generator stator | |
| CN109368519B (en) | Lifting method for emergency diesel generator of nuclear power station | |
| WO2023070257A1 (en) | Intelligent hoisting robot | |
| CN202279833U (en) | Simple converter flue transition carriage | |
| CN101215616A (en) | Upper repairing method for mammoth converter lining | |
| CN205346600U (en) | Big plate -girder hoist and mount specialized tool | |
| CN209618693U (en) | A kind of encircling type single-beam operation trolley | |
| CN208560672U (en) | Three dimensional unit pipeline system lifts beam transport vehicle | |
| CN110592300A (en) | Conveying system and method for blast furnace shell | |
| CN213738238U (en) | Device for overhauling lifting appliance by stretching and retracting rail | |
| CN207405845U (en) | It is a kind of to be used to carry out large-scale component transport, the device having bad luck on light roof | |
| CN202465213U (en) | Hanging basket system for slope construction | |
| CN201924037U (en) | Upper repairing equipment of large-size converter lining | |
| CN105253793A (en) | Construction method for traction transporting and hoisting of zinc pot in zinc plating workshop | |
| CN203583366U (en) | Shifter for hanging basket assembly part |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |