CN113463953A - Construction method for synchronously carrying out high-rise frame structure and large-scale equipment in steel plant - Google Patents
Construction method for synchronously carrying out high-rise frame structure and large-scale equipment in steel plant Download PDFInfo
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- CN113463953A CN113463953A CN202010244281.0A CN202010244281A CN113463953A CN 113463953 A CN113463953 A CN 113463953A CN 202010244281 A CN202010244281 A CN 202010244281A CN 113463953 A CN113463953 A CN 113463953A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
- E04H5/02—Buildings or groups of buildings for industrial purposes, e.g. for power-plants or factories
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
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Abstract
The invention particularly relates to a construction method for synchronously carrying out a high-rise frame structure and large equipment of a steel plant; the method comprises the steps of organizing drawings for consultation, modeling and bottoming; assembling and hoisting the steel structure column; supporting between the mounting columns; installing and welding a crane beam system; installing a first operating platform; hoisting a converter flue gas collecting device platform, and installing an auxiliary crane after the plant is closed; installing a converter; and (5) ending the tower steel structure and the process equipment. The method adopts the synchronous construction method of the workshop steel structure and the equipment to carry out the sectional construction, effectively shortens the construction period, avoids the phenomenon that the steel structure cannot be installed and needs to be cut and reworked due to overlarge equipment size after the steel structure is installed, and simultaneously improves the service efficiency of the crane.
Description
Technical Field
The invention relates to the field of comprehensive construction of steel plants, in particular to a construction method for synchronously constructing a high-rise frame structure and large equipment of a steel plant.
Background
Modern comprehensive steel and iron works generally have the characteristics of large total tonnage of steel structures, more high-rise frame structures and complex process. For example, for a large and medium-sized steel-making continuous casting plant, the total steel structure of a tower is about 5500t, and the process equipment comprises 1900t and an energy medium pipeline 700 t; and professional construction of a large amount of matched equipment such as electric equipment, instruments and heat preservation equipment is carried out subsequently. The complex projects are mutually integrated, so that the problems of heavy tasks and short construction period commonly occur in the construction project of the current comprehensive steel plant. For example, for steel structures, steel structure roof trusses and steel structure members are large in size and heavy in weight, and according to a traditional construction mode, steel plant openings are required to be constructed, and large hoisting equipment with enough quantity must be configured for external hoisting. If the effective cooperation and allocation construction of each construction part of the steel plant cannot be effectively carried out, serious engineering quality problems are likely to occur under the pressure of heavy tasks and tight construction periods.
Disclosure of Invention
The invention aims to overcome the defects and provides a synchronous construction method for synchronously hoisting and installing a high-rise frame structure and large equipment in a staggered manner.
In order to achieve the above object, the present invention is realized by:
a construction method for synchronously constructing a high-rise frame structure and large equipment in a steel plant comprises
Step 1, organizing a drawing to meet, carrying out three-dimensional modeling according to the drawing, compiling a steel structure installation scheme and an equipment installation scheme, and carrying out scheme cross-referencing;
step 2, assembling and hoisting the steel structure column: a comprehensive hoisting method is adopted for hoisting the factory building columns, and hoisting items and tasks are comprehensively distributed according to the actual situation on site and the hoisting capacity of hoisting equipment; installing the upper-end steel structure column after the grouting retest of the lower-end steel structure column is error-free, wherein the welding seams of the butt-joint columns are all primary welding seams and require 100% qualified flaw detection;
step 3, in order to ensure the stability of the steel column system, installing the inter-column support immediately after the column is installed;
step 4, mounting and welding a crane beam system after the inter-column support mounting is finished;
step 5, installing a first operation platform;
step 6, hoisting the platform of the converter flue gas collecting device, and immediately hoisting the movable smoke hood device after the installation is finished, wherein the hoisting of the equipment adopts an enlarged assembly unit integral hoisting method, the equipment support and the relatively independent platform are hoisted synchronously, the installation and fixation of the transverse trolley are carried out, and the movable smoke hood is installed and fixed at a position 1.5 meters below the transverse trolley;
step 7, hoisting the ferroalloy bin and the conveying platform, immediately hoisting the flue, the ferroalloy conveying device, the ferroalloy auxiliary raw material device, the alloy bin and the evaporative cooler after the installation is finished, and then installing, aligning and fixing the movable section of the flue;
step 8, splicing frame columns of the highest layer of the factory building, installing supports among the columns after splicing, installing vehicle beams and part of roof beams after installing supports among the columns, reserving oxygen lance travelling cranes and steam pocket hoisting holes, and hoisting and installing the oxygen lance travelling cranes;
step 9, hoisting the second steel structure platform, and installing the flue, the bulk material hopper weighing device and the primary dust removal purification device after the second steel structure platform is installed;
step 10, hoisting the bulk high-level bin, the feeding device platform and the oxygen lance platform, and after the installation, installing the bulk high-level bin, the feeding device, the oxygen lance cross carriage and other auxiliary devices, wherein the oxygen lance device is hoisted by adopting an oxygen lance travelling crane, and after the installation, 2 sections in the flue and the tail section in the flue are installed;
step 11, steam drum platform installation is carried out, the steam drum device is hoisted after the platform installation is finished, the roof beam of the tower is perfected and sealed after the hoisting is finished, the roof purline is installed after the sealing is finished, and finally, encaustic tile installation, the hoisting of a dust removal pipeline, an air pipe and other hydraulic pipelines are sequentially finished after the plant is sealed by using a travelling crane;
12, after the plant is closed, installing an auxiliary traveling crane, after the auxiliary traveling crane is installed, debugged and put into use, utilizing the auxiliary traveling crane to install a converter trunnion ring, a converter body, a tilting device, a skirt cover, a front furnace rear door and other furnace body equipment, loading the converter and installing the converter on a first operation platform to manufacture a sliding track, installing the converter body by a sliding method, and pouring a concrete platform plate of the first operation platform after the installation is finished;
step 13, after the converter is installed, constructing a furnace bottom +/-0 movable smoke hood hydraulic station and matched equipment, installing a furnace slag tank car and a buggy ladle, integrally installing a steel structure roof truss on the ground, and assembling more than two roof trusses for hoisting;
and 14, ending the tower steel structure and the process equipment.
The synchronous construction method adopts a method of synchronous construction of a workshop steel structure and equipment to carry out subsection construction. Not only effectively shortened construction period, by having avoided the phenomenon of steel construction installation completion back because of the too big unable installation of equipment size but also cutting the steel construction of doing over again, still improved loop wheel machine availability factor simultaneously.
Drawings
FIG. 1 is a schematic diagram of the hoisting of the traverse trolley in the construction method.
Fig. 2 is a schematic diagram of the hoisting of the movable smoke hood in the construction method.
FIG. 3 is a schematic view of the installation of a first segment of smoke hood in the construction method.
FIG. 4 is a schematic view of the installation of the end flue in the construction method.
FIG. 5 is a view showing the structure of an oxygen lance system according to the present construction method.
Detailed Description
The invention is further illustrated by the following specific examples.
The construction method provided by the invention is adopted to construct a steelmaking continuous casting plant, and the detailed conditions of the continuous casting plant are as follows:
the total height of the tower is 60 meters, the tower is divided into seven layers of platforms, the total steel structure is 5500t, and the process equipment is 1900t (mainly comprising equipment such as a converter, an oxygen lance, a sublance, a dust removal flue, a steam pocket, a high-level bin, a middle-level bin and the like)
Position ± 0: a movable smoke hood lifting hydraulic station and a movable smoke hood hydraulic device.
First layer (8.5 m): the converter comprises a main operation part in front of the converter, a control platform, a steel beam, a concrete platform plate and a converter body.
Second layer (17.9 m): converter flue gas collection device platform, activity petticoat pipe device.
Third layer (23.13 m): ferroalloy feed bin and conveying platform, ferroalloy material conveyor.
Fourth layer (30.06 m): flue platform, bulk alloy hopper, primary dust removal purifier.
Fifth layer (36.55 m): flue platform, bulk material hopper weighing process platform, primary dust removal purifier.
Sixth layer (45.2 m): a bulk high-level bin and feeding device platform, a bulk high-level bin and a feeding device.
Oxygen lance platform, oxygen lance device.
Seventh layer (52.84 m): a steam drum platform and a steam drum device.
The construction method for the steelmaking continuous casting plant by adopting the 'construction method for synchronously carrying out the high-rise frame structure and the large-scale equipment in the steelmaking plant' comprises the following steps:
1. and organizing a drawing for reviewing, carrying out three-dimensional modeling according to the drawing, carefully organizing and planning, compiling a detailed steel structure installation scheme and an equipment installation scheme, and carrying out scheme convergence. Meanwhile, the system is closely connected with an owner, seamless butt joint of mechanical equipment supply and steel structure hoisting progress is guaranteed, and continuity and high efficiency of on-site hoisting are guaranteed.
2. Assembling and hoisting the steel structure column: the factory building column mainly comprises a lattice frame column, a box frame column and a cross column. The height of the tower steel structure column is 43 meters, the breaking position is near a bracket with 27 meters, due to the limited space in the field, the installation of the steel structure column at the lower section of the D-G axis line 1-16 is firstly carried out, the hoisting adopts a comprehensive hoisting method, namely hoisting items and tasks are comprehensively distributed according to the actual situation on the spot and the hoisting capacity of various hoisting equipment, so that the construction capacity of each hoisting equipment is comprehensively utilized. And (3) installing the steel structure column at the upper end of the D-G axis 1-16 line after the grouting retest of the steel structure column at the lower end is error-free, wherein the welding seams of the butt-joint columns are primary welding seams, and the 100% flaw detection is qualified.
3. In order to ensure the stability of the steel column system, the pillars are immediately installed with the inter-pillar supports after the pillars are installed.
4. And after the inter-column support is installed, installing and welding a crane beam system.
5. And 8.8 m of operating platform installation.
6. Hoisting a 17.9-meter converter flue gas collecting device platform, immediately hoisting a movable smoke hood device after the installation is finished, and synchronously hoisting a relatively independent platform and an equipment support and installing and fixing a transverse trolley by adopting an enlarged assembly unit integral hoisting method, wherein the movable smoke hood is installed and fixed at a position 1.5 meters below the transverse trolley.
7. And hoisting the 23.13 m ferroalloy bin and the conveying platform, immediately hoisting the flue, the ferroalloy conveying device, the ferroalloy auxiliary raw material device, the alloy bin and the evaporative cooler after the installation is finished, and installing, aligning and fixing the movable section of the flue after the installation is finished.
8. Splicing frame columns of the highest layer of the factory building (43-60 meters), mounting supports among the columns after splicing, mounting a travelling crane beam and a part of roof beam after mounting the supports among the columns, reserving an oxygen lance travelling crane (52.84 meters) and a steam pocket hoisting hole, and hoisting and mounting the oxygen lance travelling crane (32 t).
9. And hoisting the steel structure platform of 36.55 meters, and installing the flue, the bulk material hopper weighing device and the primary dust removal purification device after the installation is finished.
10. Hoisting 45.2 m bulk high-level bin, feeding device platform and oxygen lance platform, after the installation, installing the bulk high-level bin, feeding device, oxygen lance cross carriage and other devices, wherein the hoisting of the oxygen lance device can be completed by using an oxygen lance travelling crane, thereby solving the difficult problem of hoisting the oxygen lance and providing a site for other professional construction. And after finishing, carrying out 2-section installation in the flue and tail-section installation in the flue.
11. And (3) carrying out 52.84-meter steam drum platform installation, hoisting the steam drum device after the platform installation is finished, perfecting and sealing the tower roof beam after the hoisting is finished, then loading the roof purline after the sealing is finished, and finally carrying out encaustic tile installation. The hoisting of the dust removal pipeline, the air pipe and other hydraulic pipelines is gradually completed after the plant is closed by using the traveling crane.
12. And (3) installing an FG (FG) cross-200G travelling crane after the plant is closed, installing equipment such as a converter trunnion ring, a converter body, a tilting device, a skirt cover, a front furnace rear door and the like by utilizing the 200t travelling crane after the travelling crane is installed, installing the converter body on a sliding track made by 8.8 meters, and pouring a concrete platform plate with a platform of 8.8 meters after the installation is finished.
13. And after the converter is installed, constructing a hydraulic station with a furnace bottom +/-0 movable smoke hood and supporting equipment, and installing a slag tank car and a ladle car. The steel structure roof truss is integrally installed on the ground, more than two steel structure roof trusses are assembled and hoisted, high-altitude operation is reduced as much as possible, and the installation efficiency is improved.
14. And (5) completing and ending the tower steel structure and the process equipment.
The synchronous segmented construction of the large steel structure and the large equipment therein, which is provided by the method, has a plurality of advantages for the current workshop construction project:
the synchronous construction of the steel structure and the equipment of the factory building is the best combination of synchronous construction of the factory building and the pipeline, layered construction of the factory building and synchronous construction of the equipment and the pipeline. The installation and construction of the steel structure under the complex environment are influenced by the complex steelmaking process and more high-rise equipment. The method is adopted for synchronous construction, so that the difficulty caused by mounting equipment after the steel structure is mounted is reduced, the construction pace is effectively accelerated, and meanwhile, the engineering safety and quality are ensured.
Meanwhile, the method for simultaneously constructing and installing the equipment and the main structure can avoid the problem of narrow equipment installation space after the construction of the main structure is finished. Because the installation construction period of the main steel structure factory building is short, equipment with large manufacturing workload and long installation period, such as a converter, a dust removal smoke hood and the like, needs to be customized in advance. Aiming at the situation that the construction quality and the construction safety of a project cannot be guaranteed due to the fact that main structure construction and multiple cross operations of equipment installation are conducted, related personnel need to be specially organized for research, a construction scheme is determined, operating personnel are reasonably dispatched, then the construction quality and the construction safety are guaranteed, and the construction efficiency is improved. The converter and the steel structure main body have larger volume, and the steel structure member is manufactured and supplied in a matching way to meet the requirement of installation progress and has certain reserve. The roof dust removal petticoat pipe is bulky, and the hoist and mount degree of difficulty is big, assembles into the major part and uses shaped steel reinforcement on ground, adopts the multiple spot hoisting method hoist and mount. Preferentially arranging hoisting of a workshop steel structure, completing traveling crane installation as early as possible and ensuring the equipment installation period. The construction method creates favorable conditions for hoisting large-scale equipment in a factory building, and can save the machine-class cost of construction hoisting machinery. The factory building structure is hoisted for 2-3 spans, and the inter-column support, crane beam, track and roof system are installed in place to form a stable frame system. And then installing converter equipment, a vertical superposed pipeline and a vertical sliding pipe. And finally, hoisting a bridge crane, paving the roof color plate, and installing the plant lighting lamp to be inserted into the hoisting of the roof truss system.
In conclusion, the construction process for cross installation of the steel plant high-rise frame steel structure and the large-scale equipment, which is provided by the invention, has the advantages that the total amount of the steel structure is large, the installation precision requirement is high, the equipment installation workload is large, the installation precision requirement is high, the danger is large, and a plurality of cross operations are performed among all the major projects, and the construction process of synchronous hoisting and staggered installation of the steel structure and the equipment is adopted, so that the construction difficulty is reduced, and the construction progress is improved. Providing valuable experience and reference for similar projects.
Claims (1)
1. A construction method for synchronously carrying out a high-rise frame structure and large equipment in a steel plant is characterized by comprising the following steps: comprises that
Step 1, organizing a drawing to meet, carrying out three-dimensional modeling according to the drawing, compiling a steel structure installation scheme and an equipment installation scheme, and carrying out scheme cross-referencing;
step 2, assembling and hoisting the steel structure column: a comprehensive hoisting method is adopted for hoisting the factory building columns, and hoisting items and tasks are comprehensively distributed according to the actual situation on site and the hoisting capacity of hoisting equipment; installing the upper-end steel structure column after the grouting retest of the lower-end steel structure column is error-free, wherein the welding seams of the butt-joint columns are all primary welding seams and require 100% qualified flaw detection;
step 3, in order to ensure the stability of the steel column system, installing the inter-column support immediately after the column is installed;
step 4, mounting and welding a crane beam system after the inter-column support mounting is finished;
step 5, installing a first operation platform;
step 6, hoisting the platform of the converter flue gas collecting device, and immediately hoisting the movable smoke hood device after the installation is finished, wherein the hoisting of the equipment adopts an enlarged assembly unit integral hoisting method, the equipment support and the relatively independent platform are hoisted synchronously, the installation and fixation of the transverse trolley are carried out, and the movable smoke hood is installed and fixed at a position 1.5 meters below the transverse trolley;
step 7, hoisting the ferroalloy bin and the conveying platform, immediately hoisting the flue, the ferroalloy conveying device, the ferroalloy auxiliary raw material device, the alloy bin and the evaporative cooler after the installation is finished, and then installing, aligning and fixing the movable section of the flue;
step 8, splicing frame columns of the highest layer of the factory building, installing supports among the columns after splicing, installing vehicle beams and part of roof beams after installing supports among the columns, reserving oxygen lance travelling cranes and steam pocket hoisting holes, and hoisting and installing the oxygen lance travelling cranes;
step 9, hoisting the second steel structure platform, and installing the flue, the bulk material hopper weighing device and the primary dust removal purification device after the second steel structure platform is installed;
step 10, hoisting the bulk high-level bin, the feeding device platform and the oxygen lance platform, and after the installation, installing the bulk high-level bin, the feeding device, the oxygen lance cross carriage and other auxiliary devices, wherein the oxygen lance device is hoisted by adopting an oxygen lance travelling crane, and after the installation, 2 sections in the flue and the tail section in the flue are installed;
step 11, steam drum platform installation is carried out, the steam drum device is hoisted after the platform installation is finished, the roof beam of the tower is perfected and sealed after the hoisting is finished, the roof purline is installed after the sealing is finished, and finally, encaustic tile installation, the hoisting of a dust removal pipeline, an air pipe and other hydraulic pipelines are sequentially finished after the plant is sealed by using a travelling crane;
12, after the plant is closed, installing an auxiliary traveling crane, after the auxiliary traveling crane is installed, debugged and put into use, utilizing the auxiliary traveling crane to install a converter trunnion ring, a converter body, a tilting device, a skirt cover, a front furnace rear door and other furnace body equipment, loading the converter and installing the converter on a first operation platform to manufacture a sliding track, installing the converter body by a sliding method, and pouring a concrete platform plate of the first operation platform after the installation is finished;
step 13, after the converter is installed, constructing a furnace bottom +/-0 movable smoke hood hydraulic station and matched equipment, installing a furnace slag tank car and a buggy ladle, integrally installing a steel structure roof truss on the ground, and assembling more than two roof trusses for hoisting;
and 14, ending the tower steel structure and the process equipment.
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| CN202010244281.0A CN113463953A (en) | 2020-03-31 | 2020-03-31 | Construction method for synchronously carrying out high-rise frame structure and large-scale equipment in steel plant |
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| CN202010244281.0A CN113463953A (en) | 2020-03-31 | 2020-03-31 | Construction method for synchronously carrying out high-rise frame structure and large-scale equipment in steel plant |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101899904A (en) * | 2010-07-23 | 2010-12-01 | 中冶建工有限公司 | Method for two-way hoisting construction of converter tower steel structure |
| CN102758049A (en) * | 2012-08-04 | 2012-10-31 | 中国二十二冶集团有限公司 | Construction method of oversize converter large span |
| CN110836028A (en) * | 2019-11-22 | 2020-02-25 | 上海宝冶集团有限公司 | Double-high-span steel-making tower installation 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 |
-
2020
- 2020-03-31 CN CN202010244281.0A patent/CN113463953A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101899904A (en) * | 2010-07-23 | 2010-12-01 | 中冶建工有限公司 | Method for two-way hoisting construction of converter tower steel structure |
| CN102758049A (en) * | 2012-08-04 | 2012-10-31 | 中国二十二冶集团有限公司 | Construction method of oversize converter large span |
| 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 |
| CN110836028A (en) * | 2019-11-22 | 2020-02-25 | 上海宝冶集团有限公司 | Double-high-span steel-making tower installation method |
Non-Patent Citations (1)
| Title |
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| 拍拍宝贝: "河静钢铁炼钢厂主厂房钢结构吊装施工方案", 《爱问共享资料》 * |
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