CN112692269A - Bale rotary table installation method - Google Patents

Bale rotary table installation method Download PDF

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Publication number
CN112692269A
CN112692269A CN202011537495.3A CN202011537495A CN112692269A CN 112692269 A CN112692269 A CN 112692269A CN 202011537495 A CN202011537495 A CN 202011537495A CN 112692269 A CN112692269 A CN 112692269A
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CN
China
Prior art keywords
bale
installation
rotary table
hoisting
translation frame
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.)
Pending
Application number
CN202011537495.3A
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Chinese (zh)
Inventor
袁春阳
华飞
罗森林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China 19th Metallurgical Corp
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China 19th Metallurgical Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China 19th Metallurgical Corp filed Critical China 19th Metallurgical Corp
Priority to CN202011537495.3A priority Critical patent/CN112692269A/en
Publication of CN112692269A publication Critical patent/CN112692269A/en
Pending legal-status Critical Current

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Abstract

The invention provides a ladle turret installation method capable of installing a ladle turret in advance under the condition that the strength is not reached after the pouring of concrete of other pouring platforms is finished, and belongs to the technical field of metallurgical equipment installation. The invention discloses a bale rotary table installation method, which comprises the following steps: assembling and assembling the bale rotary tables according to requirements; erecting a translation frame on a bottom layer platform of a bale rotary installation foundation, wherein the translation frame is positioned on the side surface of a plant column, and a roller way is arranged on the translation frame; hoisting a base of the bale rotary table, hoisting the bale rotary table on the roller way, and translating the bale rotary table to the side surface of the rotary table mounting position below the crane beam of the factory building through a winch; the carrying pole beam 5 is bolted in place, two hoisting devices arranged on a workshop for casting are used for hoisting two ends of the carrying pole beam 5, the bale revolving platform 2 translated to the side surface of the revolving platform installation position below the travelling crane beam of the workshop is hoisted, and the bale revolving platform is hoisted to the revolving platform installation position for installation. The invention greatly shortens the construction period.

Description

Bale rotary table installation method
Technical Field
The invention relates to the technical field of metallurgical equipment installation, in particular to a ladle turret installation method.
Background
The ladle turret is the most common setting of carrying and bearing ladle pouring of application in modern continuous casting, and the main part is installed in steelmaking continuous casting main building crane beam both shoulders below, and the side is the factory's post for supporting the crane beam, and installation space is limited. The ladle turret equipment has large size and heavy tonnage.
At present, a platform crane construction method is adopted for mounting a bale revolving platform, and due to the fact that the mounting space of the bale revolving platform is small, the construction method can be implemented generally after the concrete strength of a pouring platform of other equipment meets design requirements, the waiting period is long, and projects under the condition that the project construction period is tight cannot be met.
Disclosure of Invention
The invention aims to solve the technical problem of providing a ladle turret installation method which can carry out ladle turret installation in advance under the condition that the strength is not reached after the pouring of the concrete of the rest pouring platforms is finished.
The technical scheme adopted by the invention for solving the technical problems is as follows: a bale turntable installation method comprises the following steps:
step one, assembling and assembling a bale rotary table;
secondly, erecting a translation frame on a platform at the bottom layer of the bale rotary installation foundation, wherein the translation frame is positioned on the side surface of the plant column and is provided with a roller way;
thirdly, hoisting the ladle turret on the roller way, and horizontally moving the ladle turret to the side face of the turret installation position below the crane beam of the factory building through a winch;
and step four, bolting the carrying pole beam in place, using two hoisting devices arranged on the plant for casting to respectively hoist the end part of the carrying pole beam, ensuring that a hoisting rope of the hoisting device is stressed in the vertical direction, starting the hoisting device to hoist the bale rotary table translated to the side surface of the rotary table mounting position below the travelling crane beam of the plant, and hoisting the bale rotary table to the rotary table mounting position for mounting.
Further, in the fourth step, when the ladle turret is hoisted to a position 200 mm-250 mm above the mounting position of the turret, the base of the turret is connected with the mounting base through bolts.
Further, the step of connecting the revolving platform base and the mounting base by bolts comprises:
after the foundation bolts of the foundation to be installed are connected with the base of the rotary table, the foundation bolts are completely pre-tightened by a hydraulic nut stretcher, and the pre-tightening force is 70% -75% of the final tightening value;
performing secondary grouting after pre-tightening is completed;
and finally screwing and fixing the secondary grouting by using the hydraulic nut stretcher again.
Furthermore, the carrying pole beam comprises an I-shaped steel beam main body, and a plurality of reinforcing plates arranged along the length direction of the I-shaped steel beam main body are welded on two sides of the I-shaped steel beam main body.
Furthermore, the setting height of the roller way is the same as the installation elevation of the ladle turret.
Furthermore, the translation frame comprises two cross beams, the cross beams are made of 300X 300H-shaped steel, the cross beams are connected through 16# channel steel in a welded mode, and support columns below the cross beams are made of 300X 300H-shaped steel.
The invention has the beneficial effects that: the method is characterized in that a translation frame is directly erected on a bale rotary installation foundation bottom layer platform to serve as a hoisting transfer platform, and then the bale rotary table is installed in a translation and hoisting relay mode.
Drawings
FIG. 1 is a schematic view of the installation of the inventive bale turntable;
FIG. 2 is a top view of FIG. 1;
fig. 3 is a cross-sectional view of the inventive pole beam;
FIG. 4 is a schematic view of the present invention showing the construction of the pan carriage;
shown in the figure: the device comprises a translation frame 1, a bale rotary table 2, a winch 3, a factory building column 4, a carrying pole beam 5, a crane beam 6, a roller way 11, a cross beam 12, a channel steel 13, a support column 14, a steel beam main body 51 and a reinforcing plate 52.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
As shown in fig. 1 and 2, a bale turntable mounting method of the present invention includes:
step one, assembling and assembling the bale rotary table according to requirements;
secondly, erecting a translation frame 1 on a platform at the bottom layer of the bale rotary installation foundation, wherein the translation frame 1 is positioned on the side surface of a plant column 4, and a roller way 11 is arranged on the translation frame 1;
step three, hoisting a base of the bale rotary table 2, hoisting the bale rotary table 2 on the roller way 11, and horizontally moving the bale rotary table to the side surface of a rotary table installation position below a plant crane beam 6 through a winch 3;
and step four, bolting the carrying pole beam 5 in place, hoisting the end part of the carrying pole beam 5 by using two hoisting devices arranged on the plant for casting, ensuring that a hoisting rope 7 of the hoisting device is stressed in the vertical direction, starting the hoisting device to hoist the bale revolving platform 2 translated to the side surface of the revolving platform installation position below the travelling beam of the plant, and hoisting the bale revolving platform to the revolving platform installation position for installation.
Wherein, the first step can be performed after the second step.
In order to ensure the supporting strength, specifically, the translation frame 1 of the invention comprises two cross beams 12 made of 300 × 300H-shaped steel, the cross beams 12 are connected by welding through 16# channel steel 13, the number of the channel steel 13 is 5, 3 supporting columns 14 are arranged below the cross beams 12, and the supporting columns 14 are also made of 300 × 300H-shaped steel. Wherein, the concrete quantity of support column, channel-section steel can carry out corresponding increase and decrease according to the length of translation frame 1.
According to the method, the translation frame 1 is directly erected on the bale rotary installation foundation bottom layer platform to serve as a hoisting transfer platform, and then the bale rotary table 2 is installed in a translation and hoisting relay mode, compared with the existing layered installation, the method can be installed before the concrete strength of the pouring platform of other equipment on the bale rotary installation foundation bottom layer platform meets the design requirement, so that the construction period is greatly shortened, and the construction period can be about 15 days ahead.
In order to facilitate installation, in the fourth step, when the ladle turret is hoisted to a position 200-250 mm above the installation position of the turret, the base of the turret is connected with foundation bolts of an installation foundation.
In order to ensure that the rotary table is more stably installed, specifically, the steps of connecting the rotary table base with the foundation bolts of the installation foundation are as follows:
after the foundation bolts of the foundation to be installed are connected with the base of the rotary table, the foundation bolts are completely pre-tightened by a hydraulic nut stretcher, and the pre-tightening force is 70% -75% of the final tightening value;
performing secondary grouting after pre-tightening is completed;
and finally screwing and fixing the secondary grouting by using the hydraulic nut stretcher again.
Because the bale rotary table is heavy in tonnage, in order to ensure the bearing capacity of the carrying pole beam 5, the steel beam main body 51 of the carrying pole beam 5 adopts an I-shaped structure with good bending resistance, and a plurality of reinforcing plates 52 which are distributed along the length direction of the beam main body 51 are welded on both sides of the steel beam main body 51. The reinforcing plate 52 is provided between the upper and lower flange plates of the steel beam body 51.
In order to facilitate the installation of the rotary table, the roller way 11 of the translation frame 1 is arranged at the same height as the installation elevation of the ladle rotary table.

Claims (6)

1. A bale turntable installation method is characterized by comprising the following steps:
step one, assembling and assembling a bale rotary table;
secondly, erecting a translation frame (1) on a bottom layer platform of the bale rotary installation foundation, wherein the translation frame (1) is positioned on the side surface of the plant column (4), and a roller way (11) is arranged on the translation frame (1);
thirdly, hoisting the bale rotary table on the roller way (11), and translating the bale rotary table to the side surface of the rotary table mounting position below the crane beam (6) of the factory building through a winch (3);
and step four, bolting the carrying pole beam (5) in place, using two hoisting devices arranged on the plant for casting to respectively hoist the end part of the carrying pole beam (5), ensuring that a hoisting device hoisting rope (7) is stressed in the vertical direction, starting the hoisting devices to hoist the bale revolving platform translated to the side surface of the revolving platform installation position below the travelling beam of the plant, and hoisting the bale revolving platform to the revolving platform installation position for installation.
2. The bale turntable mounting method of claim 1, wherein in the fourth step, the bolting of the turntable base to the mounting base is performed while the bale turntable is suspended 200mm to 250mm above the turntable mounting position.
3. The bale turntable mounting method of claim 2, wherein the step of bolting the turntable base to the mounting base comprises:
after the foundation bolts of the foundation to be installed are connected with the base of the rotary table, the foundation bolts are completely pre-tightened by a hydraulic nut stretcher, and the pre-tightening force is 70% -75% of the final tightening value;
performing secondary grouting after pre-tightening is completed;
and finally screwing and fixing the secondary grouting by using the hydraulic nut stretcher again.
4. The bale turret installation method according to claim 1, wherein the carrying pole beam (5) comprises an i-shaped steel beam body (51), and a plurality of reinforcing plates (52) arranged along the length direction of the i-shaped steel beam body (51) are welded to both sides of the steel beam body (51).
5. The ladle turret installation method according to claim 1, wherein the set height of the roller table (11) is the same as the installation elevation of the ladle turret.
6. A bale turntable mounting method according to claim 1, characterized in that the translation frame (1) comprises two beams (12), the beams (12) are 300 x 300H-shaped steel, the beams (12) are welded together through 16# channel steel (13), and the supporting columns (14) below the beams (12) are made of 300 x 300H-shaped steel.
CN202011537495.3A 2020-12-23 2020-12-23 Bale rotary table installation method Pending CN112692269A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011537495.3A CN112692269A (en) 2020-12-23 2020-12-23 Bale rotary table installation method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011537495.3A CN112692269A (en) 2020-12-23 2020-12-23 Bale rotary table installation method

Publications (1)

Publication Number Publication Date
CN112692269A true CN112692269A (en) 2021-04-23

Family

ID=75509290

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011537495.3A Pending CN112692269A (en) 2020-12-23 2020-12-23 Bale rotary table installation method

Country Status (1)

Country Link
CN (1) CN112692269A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101486091A (en) * 2009-02-20 2009-07-22 中冶实久建设有限公司南京分公司 Integral replacing method of ladle turret with limited upper lifting space
EP3163240A1 (en) * 2015-10-27 2017-05-03 Primetals Technologies Germany GmbH Pan lifting device and method of vertically displacing a metal bath pan
CN106865414A (en) * 2017-03-09 2017-06-20 中国十七冶集团有限公司 A kind of combined hanging installation method of Con casting ladle panoramic table
CN106938820A (en) * 2016-01-05 2017-07-11 五冶集团上海有限公司 A kind of box shoulder pole girder suspender and preparation method thereof
CN108080617A (en) * 2017-12-20 2018-05-29 中国二冶集团有限公司 For the construction method of ladle turret overall pulling down

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101486091A (en) * 2009-02-20 2009-07-22 中冶实久建设有限公司南京分公司 Integral replacing method of ladle turret with limited upper lifting space
EP3163240A1 (en) * 2015-10-27 2017-05-03 Primetals Technologies Germany GmbH Pan lifting device and method of vertically displacing a metal bath pan
CN106938820A (en) * 2016-01-05 2017-07-11 五冶集团上海有限公司 A kind of box shoulder pole girder suspender and preparation method thereof
CN106865414A (en) * 2017-03-09 2017-06-20 中国十七冶集团有限公司 A kind of combined hanging installation method of Con casting ladle panoramic table
CN108080617A (en) * 2017-12-20 2018-05-29 中国二冶集团有限公司 For the construction method of ladle turret overall pulling down

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
吕士金等: "典型蝶式钢包回转台快速整体吊装技术", 《连铸》 *
徐峥等: "大型板坯连铸机钢包回转台安装技术", 《价值工程》 *
易高文: "狭窄厂房空间150t钢包回转台安装方案介绍", 《冶金设备》 *
谭亨达: "钢包回转台安装技术", 《包钢科技》 *

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