CN102010927A - Integral hydraulic jacking inverted construction method of large converter - Google Patents

Integral hydraulic jacking inverted construction method of large converter Download PDF

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Publication number
CN102010927A
CN102010927A CN 201010609621 CN201010609621A CN102010927A CN 102010927 A CN102010927 A CN 102010927A CN 201010609621 CN201010609621 CN 201010609621 CN 201010609621 A CN201010609621 A CN 201010609621A CN 102010927 A CN102010927 A CN 102010927A
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China
Prior art keywords
furnace shell
backing ring
converter
ear seat
connecting rod
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Granted
Application number
CN 201010609621
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Chinese (zh)
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CN102010927B (en
Inventor
魏宝武
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China MCC20 Group Corp Ltd
Tianjin MCC20 Construction Co Ltd
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Tianjin MCC20 Construction Co Ltd
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Priority to CN 201010609621 priority Critical patent/CN102010927B/en
Publication of CN102010927A publication Critical patent/CN102010927A/en
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Publication of CN102010927B publication Critical patent/CN102010927B/en
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Abstract

The invention discloses an integral hydraulic jacking inverted construction method of a large converter, comprising the following steps: 1) in an additive bay, fixedly installing a converter shell bracket and an integral bracket on a ladle car, and building an erecting stage on the integral bracket; 2) successively inverting and hoisting the welded converter shell and backing ring which are welded into a whole on the converter shell bracket and the integral bracket, respectively adjusting the positions of the converter shell and the backing ring by a hydraulic jack to cause the relative positions of the converter shell and the backing ring to satisfy a design requirement, and ensuring that a center elevation is bigger than a designed elevation; 3) installing and hanging; 4) moving the ladle car to transport the converter to the base of the converter, finishing installation of a trunnion bearing pedestal before transporting; and 5) lowering the backing ring to cause the bearing pedestal to land on the base, and fixing after adjusting. In the invention, the phenomenon that the additive bay of a converter workshop uses a large crane is avoided, a jack is adopted to adjust the positions of the backing ring and the converter shell, and construction is convenient. The converter is assembled in the mode that the backing ring and the converter shell are inverted, and hoisting and welding are easy to operate.

Description

The whole hydraulic lifting inversion construction method of mammoth conveter
Technical field
The present invention relates to a kind of installation method of steelmaking equipment, particularly relate to the whole hydraulic lifting inversion construction method of a kind of mammoth conveter.
Background technology
Revolving furnace body mainly by backing ring, furnace shell, hang, major partss such as trunnion seat and tiling arrangement form, its assembly volume is huge, quality is heavy, complex structure, setting accuracy requires high.The installation difficulty that exists is mainly:
1, converter mill furnace bay does not have large-scale overhead traveling crane, and the fabricating yard is narrow, weight handling equipment no operatton spaces such as large-scale crane.
2, revolving furnace body major parts volume is big, quality heavy, and the installation accuracy control difficulty is big.
3, level is hung, the gap is narrow and small between the backing ring, furnace shell, and the welding of hanging can't operation.
Summary of the invention
The present invention provides a kind of mammoth conveter whole hydraulic lifting inversion construction method for solving the technical problem that exists in the known technology.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is: the whole hydraulic lifting inversion construction method of a kind of mammoth conveter, may further comprise the steps: one) stride reinforced, on ladle car, install furnace shell support and integral support, and on integral support, build erecting stage; Two) integrally welded furnace shell and backing ring are inverted are successively lifted on furnace shell support and the integral support; Adjust the position of furnace shell and backing ring respectively with whisky jack, their relative position is met design requirement, the center absolute altitude is greater than designed elevation; Three) installation is hung; Described hanging comprises backing ring ear seat, furnace shell ear seat, connecting rod and bearing pin; 1) affixed furnace shell limited block on backing ring; 2) connecting rod is connected with dummy shaft on the backing ring ear seat that is packed on the backing ring, with another root dummy shaft connecting rod is connected with furnace shell ear seat again, between ear seat inboard and connecting rod, clamp preset pieces, and furnace shell ear seat point is welded on the furnace shell; 3) remove dummy shaft, preset pieces and connecting rod, behind screw block jacking furnace shell, furnace shell ear seat is welded on the furnace shell; 4) fall furnace shell after rise it is resetted, and connecting rod is connected on backing ring ear seat and the furnace shell ear seat with bearing pin; Four) mobile ladle car is transported to its place, basis with converter, before transportation, finishes the installation of ball socketed bearing seat; Five) the landing backing ring drops on the basis bearing support, and it is fixing to adjust the back.
Described furnace shell support and integral support link together by stiffening web.
Advantage and positively effect that the present invention has are: carry out before 1) welding of the middle and upper part of furnace shell and furnace bottom being advanced to furnace shell and backing ring assembling, shortened installation period; 2) utilize the reinforced overhead traveling crane of striding to be inverted backing ring and furnace shell in place to Steel Bracket, and finish the assembling of converter, with ladle car as transportation means, the converter whole Transporting is arrived the installation site, avoided using the goliath tool in converter mill furnace bay in the installation process, solve a goliath tool no operatton spatial difficult problem, cancelled the making of dedicated trolley again, reduced construction cost.And adopt screw block to adjust the position of backing ring and furnace shell, easy construction.Adopt backing ring and furnace shell inverse manner assembling converter, hang the welding easy handling.
Description of drawings
Fig. 1 is a invention process construction procedure 1) after structural representation;
Fig. 2 is a invention process construction procedure 2) after structural representation;
Fig. 3 is a invention process construction procedure 3) after structural representation;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is the side-view of Fig. 3.
Among the figure: 1, integral support, 2, the furnace shell support, 3, ladle car, 4, furnace shell, 5, whisky jack, 6, backing ring, 7, vertically hang, 71, furnace shell ear seat, 72, bearing pin, 73, connecting rod, 74, backing ring ear seat, 8, level hangs, 9, the furnace shell limited block, 10, bearing support.
Embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
The whole hydraulic lifting inversion construction method of a kind of mammoth conveter:
One) preparation of construction
1) the welding furnace shell makes it form an integral body.
2) make the integral support that is used to support the furnace shell support of furnace shell and is used to support furnace shell and backing ring.
3) making is used to hang the dummy shaft of assembling; It is inboard and hang preset pieces between the connecting rod that making is used to hang the ear seat.
4) make the furnace shell limited block.
5) arrange jack at the basis converter opposite side, be used for the preceding action edge of ladle car.
Two) construction procedure:
1) sees also Fig. 1, stride, furnace shell support 2 and integral support 1 are fixed on the ladle car 3, and on integral support 1, build the erecting stage (not shown) reinforced.Preferably above-mentioned two stands is fused with stiffening web, to strengthen the stability of its support.Usually, above-mentioned two stands needs assembly unit formation on ladle car.
2) see also Fig. 2, on erecting stage, with the medullary ray of spirit-leveling instrument and transit instrument measuring furnace shell and backing ring; Stride reinforced, furnace shell 4 and backing ring 6 are inverted are successively lifted on furnace shell support 2 and the integral support 1; Adjust the position of furnace shell 4 and backing ring 6 respectively with whisky jack 5, their relative position is met design requirement, the center absolute altitude is greater than designed elevation, to satisfy the needs that postorder enters basis converter.
3) see also Fig. 3~Fig. 5, fixing furnace shell limited block 9 on backing ring 6, installation is hung; Hang two kinds of branches: level is hung 8 and is hung 7 with vertical; Two kinds of hanging structures are identical, include: backing ring ear seat 74, furnace shell ear seat 71, connecting rod 73 and bearing pin 72.In order to shorten installation period, handled easily, backing ring ear seat are welded on the backing ring before being preferably in its lifting.For fear of the influence of welding distortion, in the assembling process, adopt the dummy shaft assembling to bearing pin.At first, dummy shaft, furnace shell ear seat and connecting rod are hung on the backing ring, connecting rod 73 usefulness dummy shafts are connected backing ring ear seat 74, with another root dummy shaft connecting rod 73 is connected furnace shell ear seat 71 again, between ear seat inboard and connecting rod 73, clamp preset pieces, make connecting rod 73 and ear seat relative fixed, 71 of furnace shell ear seats are welded in working fastening on the furnace shell 4.Because it is very near apart from backing ring that level is hung 8 furnace shell ear seat, the welding difficulty, therefore, need with screw block jacking furnace shell, before the jacking, should remove dummy shaft, preset pieces and connecting rod, after the furnace shell jacking, furnace shell ear seat is welded on the furnace shell screw block under the landing furnace shell, furnace shell is fallen after rise, connecting rod 73 is connected on backing ring ear seat 74 and the furnace shell ear seat 71 with bearing pin 72.Above-mentioned operation should be finished reinforced striding.
4) mobile ladle car 3 makes it run to basis converter.Before buggy ladle moves, stride and bearing support 10 should be installed on the gudgeon reinforced.
5) adopt screw block landing backing ring, bearing support 10 is dropped on the basis, it is fixing to adjust the back.
Although in conjunction with the accompanying drawings the preferred embodiments of the present invention are described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not breaking away under the scope situation that aim of the present invention and claim protect, can also make a lot of forms, these all belong within protection scope of the present invention.

Claims (2)

1. the whole hydraulic lifting inversion construction method of mammoth conveter is characterized in that, may further comprise the steps:
One) strides reinforced, on ladle car, install furnace shell support and integral support, and on integral support, build erecting stage;
Two) integrally welded furnace shell and backing ring are inverted are successively lifted on furnace shell support and the integral support; Adjust the position of furnace shell and backing ring respectively with whisky jack, their relative position is met design requirement, the center absolute altitude is greater than designed elevation;
Three) installation is hung; Described hanging comprises backing ring ear seat, furnace shell ear seat, connecting rod and bearing pin;
1) affixed furnace shell limited block on backing ring;
2) connecting rod is connected with dummy shaft on the backing ring ear seat that is packed on the backing ring, with another root dummy shaft connecting rod is connected with furnace shell ear seat again, between ear seat inboard and connecting rod, clamp preset pieces, and furnace shell ear seat point is welded on the furnace shell;
3) remove dummy shaft, preset pieces and connecting rod, behind screw block jacking furnace shell, furnace shell ear seat is welded on the furnace shell;
4) fall furnace shell after rise it is resetted, and connecting rod is connected on backing ring ear seat and the furnace shell ear seat with bearing pin;
Four) mobile ladle car is transported to its place, basis with converter, before transportation, finishes the installation of ball socketed bearing seat;
Five) the landing backing ring drops on the basis bearing support, and it is fixing to adjust the back.
2. the whole hydraulic lifting inversion construction method of mammoth conveter according to claim 1 is characterized in that described furnace shell support and integral support link together by stiffening web.
CN 201010609621 2010-12-28 2010-12-28 Integral hydraulic jacking inverted construction method of large converter Active CN102010927B (en)

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Application Number Priority Date Filing Date Title
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102146492A (en) * 2011-05-24 2011-08-10 天津二十冶建设有限公司 Method for installing converter body equipment and tooling platform
CN103849706A (en) * 2012-12-03 2014-06-11 攀钢集团工程技术有限公司 Segmental assembling method for steelmaking converter
CN103898270A (en) * 2014-04-17 2014-07-02 中国十五冶金建设集团有限公司 Flip-over type installation method of steel converter
CN105499891A (en) * 2016-02-03 2016-04-20 安徽马钢工程技术集团有限公司 Mounting assisting device for three-point spherical bearing and mounting-welding method of mounting assisting device
CN112719802A (en) * 2020-12-21 2021-04-30 上海二十冶建设有限公司 Method for accurately positioning and installing converter backing ring and converter shell
CN113234882A (en) * 2021-05-10 2021-08-10 中国华冶科工集团有限公司 Converter equipment installation method
CN113333991A (en) * 2021-06-16 2021-09-03 中国二十二冶集团有限公司 Pairing installation method of converter shells

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5961688A (en) * 1994-09-15 1999-10-05 Mannesmann Aktiengesellschaft Process and device for making liquid iron by non-electric and electric smelting
CN101050478A (en) * 2006-10-26 2007-10-10 刘东业 Melting method of converter, and facility for implementing the method
CN101109028A (en) * 2007-09-06 2008-01-23 天津二十冶建设有限公司 Method of upside-down mounting hydraulic pressure lifting of converter shell

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5961688A (en) * 1994-09-15 1999-10-05 Mannesmann Aktiengesellschaft Process and device for making liquid iron by non-electric and electric smelting
CN101050478A (en) * 2006-10-26 2007-10-10 刘东业 Melting method of converter, and facility for implementing the method
CN101109028A (en) * 2007-09-06 2008-01-23 天津二十冶建设有限公司 Method of upside-down mounting hydraulic pressure lifting of converter shell

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
《2009年河北省冶金学会炼钢-连铸技术与学术年会论文集》 20091231 李新宇等 邯钢集团邯宝公司250吨转炉主体设备安装实践 76-81 1-2 , 2 *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102146492A (en) * 2011-05-24 2011-08-10 天津二十冶建设有限公司 Method for installing converter body equipment and tooling platform
CN103849706A (en) * 2012-12-03 2014-06-11 攀钢集团工程技术有限公司 Segmental assembling method for steelmaking converter
CN103898270A (en) * 2014-04-17 2014-07-02 中国十五冶金建设集团有限公司 Flip-over type installation method of steel converter
CN105499891A (en) * 2016-02-03 2016-04-20 安徽马钢工程技术集团有限公司 Mounting assisting device for three-point spherical bearing and mounting-welding method of mounting assisting device
CN112719802A (en) * 2020-12-21 2021-04-30 上海二十冶建设有限公司 Method for accurately positioning and installing converter backing ring and converter shell
CN112719802B (en) * 2020-12-21 2022-03-04 上海二十冶建设有限公司 Method for accurately positioning and installing converter backing ring and converter shell
CN113234882A (en) * 2021-05-10 2021-08-10 中国华冶科工集团有限公司 Converter equipment installation method
CN113333991A (en) * 2021-06-16 2021-09-03 中国二十二冶集团有限公司 Pairing installation method of converter shells
CN113333991B (en) * 2021-06-16 2024-01-23 中国二十二冶集团有限公司 Assembling and installing method for converter shell

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