CN109114975B - Installation method of water-cooling beam column of walking beam furnace - Google Patents
Installation method of water-cooling beam column of walking beam furnace Download PDFInfo
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- CN109114975B CN109114975B CN201811087478.7A CN201811087478A CN109114975B CN 109114975 B CN109114975 B CN 109114975B CN 201811087478 A CN201811087478 A CN 201811087478A CN 109114975 B CN109114975 B CN 109114975B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/38—Arrangements of devices for charging
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/38—Arrangements of devices for charging
- F27B2009/382—Charging
Abstract
The invention discloses a method for installing a water-cooling beam column of a walking beam heating furnace, which consists of a plurality of groups of walking beams and fixed beams, wherein each group of water-cooling beams consists of a longitudinal beam and an upright column respectively, the longitudinal beam is made of upper and lower double rows of thick-wall seamless steel pipes, the number of the longitudinal beams and the number of the upright columns are different according to the design capacity of the heating furnace, and the method comprises the following installation steps: the upper procedure is handed over and accepted → the water-cooling upright post is quickly hoisted in place → the temporary support frame is quickly arranged → the water-cooling beam is quickly hoisted to the support frame → the water-cooling beam is installed, aligned and fixed on the support frame → the upright post is fixedly welded in butt joint alignment → the weld joint is inspected → the temporary support frame is disassembled and dismantled → the lower procedure is handed over. The method for arranging the full-space large-face support frame in the furnace greatly improves the installation efficiency, and the water-cooled beam column is conveyed to the corresponding installation position by using the sliding hoisting tool arranged on the large-face support frame and the spare parts of the water-cooled beam column which are arranged from the feeding and discharging end of the heating furnace by using the travelling crane, so that the positioning is accurate, quick and efficient.
Description
Technical Field
The invention relates to the technical field of mechanical equipment, in particular to a method for installing a water-cooling beam column of a walking beam furnace.
Background
The heating furnace is one of the important equipment of a metallurgical steel rolling system. With the continuous development of steel rolling technology, heating furnaces have also undergone significant development. From the current steel rolling equipment, a stepping heating furnace structure is mostly adopted.
The walking beam furnace is a continuous furnace which moves the material blank forward one by the actions of ascending, advancing, descending and retreating of the furnace bottom or water-cooling beam. The walking beam type heating furnace is generally classified into a walking beam type heating furnace and a walking bottom type heating furnace. The walking beam heating furnace equipment is mainly a walking beam device except a furnace door and a transmission device on a furnace body.
The stepping device of the large-scale heating furnace has three forms of a crank connecting rod type, an eccentric supporting wheel type and an inclined rail bracket type. The inclined rail support seat type is widely applied. The inclined rail support type stepping device is provided with two layers of frames, and rollers are arranged between the upper layer of frame and the lower layer of frame and between the lower layer of frame and the inclined rail support. The upper layer frame is driven by a hydraulic cylinder to move horizontally, the lower layer frame is driven by the hydraulic cylinder to slide on the inclined rail seat, horizontal movement and lifting movement are obtained simultaneously, the horizontal movement cannot drive the upper frame to move due to the fact that rollers exist between the two layers of frames, and the single lifting movement forces the upper frame to lift.
The mechanical equipment installation of the walking beam furnace comprises a base, a frame, a column, a beam, a water seal and a water seal groove. The installation of present marching type heating furnace adopts traditional installation more: are sequentially arranged from bottom to top. The method comprises the steps of firstly installing a base, then assembling and installing a frame, and then installing an upright post and a beam.
The installation of the water-cooling upright post and the water-cooling beam of the walking beam furnace is the important factor for the installation of the heating furnace equipment. The good quality of installation directly influences the result of use of heating furnace soon. At present, the mainstream traditional installation method is to firstly carry out the installation, the alignment and the positioning of the water-cooling upright column and then carry out the installation, the alignment and the fixation of the water-cooling beam. The hoisting machinery adopts a crane in a factory. Such a method has the following problems: 1. the installation time is very long. 2. The method is only suitable for mounting a newly-built heating furnace, and the furnace top steel structure cannot be mounted.
Disclosure of Invention
The invention aims to provide a method for installing a water-cooling beam column of a walking beam type heating furnace, which solves the problems that the installation time of the water-cooling beam column of a newly-built heating furnace is too long and the water-cooling beam column is quickly and safely replaced during the overhaul of the heating furnace.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a walking beam furnace water-cooling beam column installation method, walking beam furnace water-cooling beam comprises multiunit walking beam and fixed beam, and every group water-cooling beam comprises longeron and stand again respectively, and the longeron is made by upper and lower double thick wall seamless steel pipe, is equipped with high temperature resistant, wear-resisting high-quality alloy cushion on it, and according to the design capacity of heating furnace, longeron and stand quantity vary, its installation step that includes:
step 1): and (3) handing over and checking in the previous procedure: the water-cooling beam column is installed at the bottom of the furnace and is installed after alignment and installation of the bottom plate of the furnace are finished, and before the water-cooling beam column is installed, the elevation and the center of the bottom frame and the bottom plate of the furnace are retested, so that the design requirement is met;
step 2): the water-cooling upright column is hoisted in place quickly: hoisting all the stand columns to mounting positions by using a travelling crane, and temporarily fixing, wherein the stand columns divide a beam stand column and a fixed beam stand column, the movable beam stand column penetrates through a furnace bottom framework to a furnace bottom, the fixed beam stand column penetrates through a furnace bottom crossbeam to the furnace bottom, a support is arranged on the stand columns, and the stand columns are directly placed at the mounting positions during hoisting;
step 3): facing braced frame setting greatly: according to the distribution positions of the water-cooling supporting beam columns, directly installing the large temporary supporting frame on a furnace bottom plate, and calculating the top elevation of the upper frame beam of the large temporary supporting frame to meet the requirement that the water-cooling beam is placed to the top elevation of the large temporary supporting beam as the designed elevation;
step 4): hoisting the water-cooled beam: after the large temporary frame supporting beam system is set, hoisting all the water-cooling beams to the corresponding frame supporting beams by using a travelling crane according to the requirements of a drawing;
step 5): the installation alignment of water-cooling roof beam is fixed: arranging a door-shaped frame on the large temporary frame support beam as a lifting point for aligning and fixing the water-cooling beam, adjusting the center and the elevation of the water-cooling beam to the standard requirement by using a chain block according to the requirement of a drawing, and fixing the water-cooling beam on the large temporary frame support beam in a spot welding manner;
step 6): the water-cooling column is installed, aligned and fixed: after the water-cooling beam is aligned and fixed, hoisting each water-cooling stand column by using a chain block to be butted with the water-cooling beam, wherein the butting requirement of the stand columns only adjusts the verticality and the butt joint seam to meet the design requirement, and performing spot welding and fixing;
step 7): welding the butt joint seam of the water-cooled beam column: argon arc welding is adopted for bottoming and electric cover facing, firstly, butt joint seams of the water-cooled beam column are welded, then the water-cooled upright column and a furnace bottom girder are welded, and nondestructive flaw detection is carried out after welding;
step 8), disassembling the large temporary support frame: and (4) after the water-cooling beam column is fixedly welded, dismantling the large temporary support frame.
Preferably, the large support frame in the step 3) is arranged to be used as a reference for placing the water-cooling beam or as a lifting point setting point for lifting the water-cooling beam column.
Preferably, the large temporary support frame in step 3) is arranged by adopting a furnace full-hearth design structure, and comprises a longitudinal support A1, a transverse support A2, a support upright A3, a support upright B4, a longitudinal support B5, a longitudinal support C6, a support upright C7, a transverse support B8 and a transverse support C9.
Preferably, the integral installation structure of the water-cooled beam column of the walking beam heating furnace comprises a fixed longitudinal beam A10, a walking longitudinal beam A11, a fixed longitudinal beam B12, a walking longitudinal beam B13, a fixed longitudinal beam C14, a feeding end wall 15, a furnace wall A16, a discharging end wall 17, a furnace wall B18, a longitudinal beam upright post 19, a furnace top 20, a furnace bottom 21, a fixed longitudinal beam A upright post 22, a walking longitudinal beam A upright post 23, a fixed longitudinal beam B upright post 24, a walking longitudinal beam B upright post 25 and a fixed longitudinal beam C upright post 26.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention provides a method for installing a water-cooling beam column of a walking beam furnace, which comprises the following steps of: the method for arranging the full-space large-face supporting frame in the furnace is adopted, the mounting efficiency of the water-cooled beam column of the walking beam heating furnace is greatly improved, the alignment is more accurate and effective compared with the traditional mounting process of firstly arranging the vertical columns and then arranging the longitudinal beams from bottom to top, the traditional method can firstly measure, align and position each vertical column and then arrange the longitudinal beams, and is tedious and has high positioning difficulty.
2. The invention provides a method for installing a water-cooling beam column of a walking beam furnace, which comprises the following steps of: in the traditional mode, the furnace top is not disassembled, the lifting of the replacement of the water-cooled beam column is a great problem, and the travelling crane cannot be directly lifted in place.
Drawings
FIG. 1 is a process distribution diagram of a water-cooled beam column of a walking beam furnace according to the present invention;
FIG. 2 is a view of the full faced support frame arrangement of the present invention;
fig. 3 is a layout view of the installation process of fig. 1 and 2 according to the present invention.
In the figure: the vertical support comprises a vertical support A1, a horizontal support A2, a support column A3, a support column B4, a vertical support B5, a vertical support C6, a support column C7, a horizontal support B8, a horizontal support C9, a fixed longitudinal beam A10, a stepping longitudinal beam A11, a fixed longitudinal beam B12, a stepping longitudinal beam B13, a fixed longitudinal beam C14, a feeding end wall 15, a furnace wall 16, a discharging end wall 17, a furnace wall B18, a longitudinal beam column 19, a furnace roof 20, a furnace bottom 21, a fixed longitudinal beam A column 22, a stepping longitudinal beam A column 23, a fixed longitudinal beam B column 24, a stepping longitudinal beam B column 25 and a fixed longitudinal beam C column 26.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 3, in the embodiment of the present invention: the method for installing the water-cooled beam column of the walking beam furnace comprises the following steps of providing a method for installing the water-cooled beam column of the walking beam furnace, wherein the water-cooled beam of the walking beam furnace comprises a plurality of groups of walking beams and fixed beams, each group of water-cooled beams respectively comprises a longitudinal beam and an upright column, the longitudinal beam is made of upper and lower double-row thick-wall seamless steel pipes, a high-temperature-resistant and wear-resistant high-quality alloy cushion block is arranged on the longitudinal beam, the number of the longitudinal beam and the upright column is different according to the design capacity of the heating furnace, and the whole installation structure comprises a fixed longitudinal beam A10, a walking longitudinal beam A11, a fixed longitudinal beam B12, a walking longitudinal beam B13, a fixed longitudinal beam C14, a feeding end wall 15, a furnace wall A16, a discharging end wall 17, a furnace wall B18, a longitudinal beam upright column 19, a furnace: the installation steps are as follows:
the method comprises the following steps: and (3) handing over and checking in the previous procedure: the water-cooling beam column is installed at the bottom of the furnace and is installed after alignment and installation of the bottom plate of the furnace are finished, and before the water-cooling beam column is installed, the elevation and the center of the bottom frame and the bottom plate of the furnace are retested, so that the design requirement is met;
step two: the water-cooling upright column is hoisted in place quickly: hoisting all the stand columns to mounting positions by using a travelling crane, and temporarily fixing, wherein the stand columns divide a beam stand column and a fixed beam stand column, the movable beam stand column penetrates through a furnace bottom framework to a furnace bottom, the fixed beam stand column penetrates through a furnace bottom crossbeam to the furnace bottom, a support is arranged on the stand columns, and the stand columns are directly placed at the mounting positions during hoisting;
step three: facing braced frame setting greatly: the large temporary support frame is arranged by adopting a furnace full-space design structure and comprises a longitudinal support A1, a transverse support A2, a support upright post A3, a support upright post B4, a longitudinal support B5, a longitudinal support C6, a support upright post C7, a transverse support B8 and a transverse support C9, the large temporary support frame is directly installed on a furnace bottom plate according to the distribution position of water-cooling support beam columns, the top elevation of a large temporary support upper frame beam is calculated, the condition that the water-cooling beam is placed on the large temporary support beam and the top elevation is the design elevation is met, the general consideration is carried out, the elevation of the large temporary support upper frame beam is 10mm lower than the design elevation, and the adjustment is convenient; the big support frame can be used as a reference for placing the water-cooling beam, so that the water-cooling beam can be conveniently and quickly aligned and fixed, and can also be used as a lifting point setting point for hoisting the water-cooling beam column, the door-shaped frame is arranged on the big support frame beam, and the alignment, adjustment and fixation of the water-cooling beam column can be carried out by using the chain block, which is shown in fig. 2;
step four: hoisting the water-cooled beam: after the large temporary frame supporting beam system is set, hoisting all the water-cooling beams to the corresponding frame supporting beams by using a travelling crane according to the requirements of a drawing;
step five: the installation alignment of water-cooling roof beam is fixed: arranging a door-shaped frame on the large temporary frame support beam as a lifting point for aligning and fixing the water-cooling beam, adjusting the center and the elevation of the water-cooling beam to the standard requirement by using a chain block according to the requirement of a drawing, and fixing the water-cooling beam on the large temporary frame support beam in a spot welding manner; the mounting and alignment of the water-cooling beam does not occupy a traveling crane, manual adjustment is performed by using a chain block, time and labor are saved, synchronous multi-point operation can be performed, and work efficiency is improved;
step six: the water-cooling column is installed, aligned and fixed: after the water-cooling beam is aligned and fixed, hoisting each water-cooling stand column by using a chain block to be butted with the water-cooling beam, wherein the butting requirement of the stand columns only adjusts the verticality and the butt joint seam to meet the design requirement, and performing spot welding and fixing; because the elevation requirements of the stand columns do not need to be considered, the stand columns are simple and quick to install and adjust under the method;
step seven: welding the butt joint seam of the water-cooled beam column: welding is strictly carried out according to the design requirements, argon arc welding is adopted for bottoming and electric welding of a cover surface, firstly, butt joint seams of the water-cooled beam column are welded, then, the water-cooled upright column is welded with the crossbeam of the furnace bottom, the large welding stress is prevented from remaining, and nondestructive flaw detection is carried out after welding;
step eight: disassembling and disassembling the large temporary support frame: after the water-cooling beam column is fixedly welded, the large temporary support frame is dismantled, the large temporary support frame is disassembled without traveling crane, and the frame is dismantled outside the furnace manually.
Based on the installation method of the embodiment, in order to better explain the invention, the following specific cases are also provided:
example 2
In 2017, a 2250 hot-rolled 3# heating furnace of a horse steel four-steel rolling main works is subjected to overhaul replacement of 37 movable and fixed longitudinal beams, the upright columns are not replaced, the overall overhaul period is 30 days, a cooling furnace is 5 days, a furnace is dried for 7 days, a main line for building the furnace is occupied for 7 days, and the time for replacing the movable beam longitudinal beams is 11 days according to the requirements of owners;
the number 3 heating furnace water-cooling beam is composed of four walking beams and five fixed beams, the number of the movable longitudinal beams and the number of the fixed longitudinal beams are 37, wherein the number of the fixed longitudinal beams is 20, the number of the walking longitudinal beams is 17, the maximum length is 16.84m, the maximum weight is not more than 4t, the number of the water-cooling beam upright columns is 194, and each longitudinal beam is respectively supported by 5-6 upright columns;
in order to ensure that the replacement task of the water-cooling beam is completed within the construction period determined by the owner, a method of arranging a full-length large temporary support frame in the furnace is adopted, and the nodes are ensured to be completed according to time; the specific implementation method comprises the following steps:
1. a water-cooled beam longitudinal beam replacing step:
the first step is as follows: positioning of the furnace bottom machinery: the replacement operation of the water-cooling beam longitudinal beam is started after slag removal in the cooling furnace and the furnace, the furnace bottom machinery is positioned at the lowest position in order to ensure the maintenance safety and the construction of projects such as the mechanical water seal of the furnace bottom, at the moment, the elevation of the upper surface of the movable beam cushion block is 100mm lower than that of the upper surface of the fixed beam cushion block, and the original record is made after the positioning;
the second step is that: setting a hoisting point in the furnace: because the construction period is very tight, in order to accelerate the progress, a full-space large temporary support frame is arranged in the furnace within the range of 56m long by 14m wide and is used as a lifting point for dismounting, mounting and hoisting the longitudinal beam, and is also used as an operation platform for welding the longitudinal beam and the upright column;
the third step: dismantling the water-cooled beam longitudinal beam: the vertical columns are required to be reinforced before the longitudinal beams are removed, the large temporary supports can be used for reinforcing, and after the longitudinal beams are removed and transported out of the furnace, all vertical column welded junctions are required to be polished to meet welding requirements;
the fourth step: and (3) mounting the water-cooled beam longitudinal beam: sequentially hoisting the water-cooled beam longitudinal beam in place by using a large temporary hoisting point in the furnace, and respectively carrying out installation and alignment;
the fifth step: welding the water-cooled beam longitudinal beam: after all longitudinal beams are installed, aligned and positioned, the height of the upper surfaces of 20 fixed beam cushion blocks and 17 walking beam cushion blocks is integrally retested, the elevation meets the design requirement, meanwhile, the centers of 9 rows of longitudinal beams are retested, the design requirement is met, after the longitudinal beams are inspected to be qualified, the welding is started, the welding of the longitudinal beams can also be performed in a segmented mode due to the influence of a construction period, after one group of longitudinal beams are aligned, the centers and the elevation are retested and meet the requirement, the synchronous welding can be performed, the time is saved, and the welding is strictly performed according to a welding process;
and a sixth step: and (3) inspecting the longitudinal beam weld joint: performing nondestructive inspection on the welding seam according to the design requirement grade, wherein the detection is arranged by a first party;
the seventh step: and (3) dismantling a hoisting point in the furnace: after the welding line is qualified, all the parts inside the furnace are removed, and after the limbs are disarmed, the furnace is manually moved out of the furnace.
2. The method for setting the hoisting point in the furnace comprises the following steps:
firstly, after slag removal in a cooling furnace and a furnace is finished, setting a hoisting point in the furnace; according to the arrangement condition of the longitudinal beams of the water-cooling beams in the furnace, the hoisting points are arranged as follows: the 12# channel steel is adopted to arrange a full-space large-faced supporting frame by depending on longitudinal beam upright columns, 9 rows of longitudinal full lengths and 22 rows of transverse full widths;
secondly, after the large temporary support frame is arranged, a lifting point is arranged, the lifting point adopts 12# or 14# I-steel, the large temporary support frame is erected, 3 sets of 5t cat cranes are longitudinally arranged, the lifting can be fully covered, the lifting point I-steel is arranged with enough strength, and the transverse support beam is fully pulled;
finally, when each longitudinal beam is aligned, two portal frames can be independently arranged on the large-faced support frame in the front and at the back to serve as lifting points, and each 2t chain block is tied to carry out installation alignment of a single longitudinal beam.
3. Dismounting the water-cooled beam longitudinal beam:
firstly, after the hoisting point in the furnace is set up, the water-cooled beam longitudinal beam can be dismantled and installed; when each longitudinal beam is dismantled, cutting and dismantling are carried out strictly according to the butt joint position of the longitudinal beam and the stand column in the drawing, the stand column is protected at the cutting position due to the reservation of the stand column, the butt joint weld crater of each stand column is ground before the water-cooling beam longitudinal beam is installed, and the weld crater needs to be polished smoothly to meet the welding requirement;
secondly, the main points of the longitudinal beam installation and alignment are the cushion block elevation and the levelness, the error is within the design range, the center is the original position because the upright post is not changed, the original position is basically recovered, and the longitudinal beam installation and alignment method can be used for checking after installation.
4. Welding the water-cooled beam longitudinal beam:
welding is carried out according to the design requirements and the welding process strictly, argon arc welding is adopted for bottoming, the cover surface is welded manually, and nondestructive testing is carried out after welding.
5. Dismantling a large temporary support frame:
the inside large temporary demolition is only manually transported outside the furnace, so that the large temporary material is cut and segmented to a proper length, and manually transported outside the furnace.
In summary, the following steps: the invention provides a method for installing a water-cooling beam column of a walking beam furnace, which comprises the following steps of: the method for arranging the full-space large-face supporting frame in the furnace is adopted, so that the mounting efficiency of the water-cooled beam column of the walking beam heating furnace is greatly improved, the alignment is more accurate and effective compared with the traditional mounting process of firstly arranging the vertical columns and then arranging the longitudinal beams from bottom to top, the traditional method can firstly measure, align and position each vertical column and then arrange the longitudinal beams, and is tedious and has high positioning difficulty; in addition, for the large scale repair of the walking beam furnace: in the traditional mode, the furnace top is not disassembled, the lifting of the replacement of the water-cooled beam column is a great problem, and the travelling crane cannot be directly lifted in place.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (4)
1. The mounting method of the water-cooling beam column of the walking beam furnace is characterized in that the water-cooling beam of the walking beam furnace consists of a plurality of groups of walking beams and fixed beams, each group of water-cooling beams consists of a longitudinal beam and an upright post respectively, the longitudinal beam is made of upper and lower double rows of thick-wall seamless steel pipes, a high-temperature-resistant and wear-resistant high-quality alloy cushion block is arranged on the longitudinal beam, and the number of the longitudinal beam and the upright post is unequal according to the design capacity of the heating furnace, and the mounting method comprises:
step 1): and (3) handing over and checking in the previous procedure: the water-cooling beam column is installed at the bottom of the furnace and is installed after alignment and installation of the bottom plate of the furnace are finished, and before the water-cooling beam column is installed, the elevation and the center of the bottom frame and the bottom plate of the furnace are retested, so that the design requirement is met;
step 2): the water-cooling upright column is hoisted in place quickly: hoisting all the stand columns to mounting positions by using a travelling crane, and temporarily fixing, wherein the stand columns divide a beam stand column and a fixed beam stand column, the movable beam stand column penetrates through a furnace bottom framework to a furnace bottom, the fixed beam stand column penetrates through a furnace bottom crossbeam to the furnace bottom, a support is arranged on the stand columns, and the stand columns are directly placed at the mounting positions during hoisting;
step 3): facing braced frame setting greatly: according to the distribution positions of the water-cooling supporting beam columns, directly installing the large temporary supporting frame on a furnace bottom plate, and calculating the top elevation of the upper frame beam of the large temporary supporting frame to meet the requirement that the water-cooling beam is placed to the top elevation of the large temporary supporting beam as the designed elevation;
step 4): hoisting the water-cooled beam: after the large temporary frame supporting beam system is set, hoisting all the water-cooling beams to the corresponding frame supporting beams by using a travelling crane according to the requirements of a drawing;
step 5): the installation alignment of water-cooling roof beam is fixed: arranging a door-shaped frame on the large temporary frame support beam as a lifting point for aligning and fixing the water-cooling beam, adjusting the center and the elevation of the water-cooling beam to the standard requirement by using a chain block according to the requirement of a drawing, and fixing the water-cooling beam on the large temporary frame support beam in a spot welding manner;
step 6): the water-cooling column is installed, aligned and fixed: after the water-cooling beam is aligned and fixed, hoisting each water-cooling stand column by using a chain block to be butted with the water-cooling beam, wherein the butting requirement of the stand columns only adjusts the verticality and the butt joint seam to meet the design requirement, and performing spot welding and fixing;
step 7): welding the butt joint seam of the water-cooled beam column: argon arc welding is adopted for bottoming and electric cover facing, firstly, butt joint seams of the water-cooled beam column are welded, then the water-cooled upright column and a furnace bottom girder are welded, and nondestructive flaw detection is carried out after welding;
step 8), disassembling the large temporary support frame: and (4) after the water-cooling beam column is fixedly welded, dismantling the large temporary support frame.
2. The method for installing the water-cooled beam column of the walking beam furnace as claimed in claim 1, wherein the large adjacent support frame in step 3) is provided with a lifting point setting point which can be used as a reference for placing the water-cooled beam or as a lifting point for lifting the water-cooled beam column.
3. The method for installing the water-cooled beam column of the walking beam furnace according to claim 1, wherein the large adjacent support frame in step 3) is arranged in a furnace full space design structure which comprises a longitudinal support A (1), a transverse support A (2), a support upright A (3), a support upright B (4), a longitudinal support B (5), a longitudinal support C (6), a support upright C (7), a transverse support B (8) and a transverse support C (9).
4. The method for installing the water-cooled beam column of the walking beam furnace as claimed in claim 1, wherein the integral installation structure of the water-cooled beam column of the walking beam furnace comprises a fixed longitudinal beam A (10), a walking longitudinal beam A (11), a fixed longitudinal beam B (12), a walking longitudinal beam B (13), a fixed longitudinal beam C (14), a feeding end wall (15), a furnace wall A (16), a discharging end wall (17), a furnace wall B (18), a longitudinal beam upright column (19), a furnace top (20), a furnace bottom (21), a fixed longitudinal beam A upright column (22), a walking longitudinal beam A upright column (23), a fixed longitudinal beam B upright column (24), a walking longitudinal beam B upright column (25) and a fixed longitudinal beam C upright column (26).
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| CN201811087478.7A CN109114975B (en) | 2018-09-18 | 2018-09-18 | Installation method of water-cooling beam column of walking beam furnace |
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| CN109114975B true CN109114975B (en) | 2019-12-20 |
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| CN104326369A (en) * | 2014-10-15 | 2015-02-04 | 中国一冶集团有限公司 | Stepping heating furnace support beam replacement apparatus and method thereof |
| CN205077116U (en) * | 2015-10-28 | 2016-03-09 | 武汉钢铁(集团)公司 | Steel billet heating furnace walking beam who can local dismantlement changes |
| CN106624413A (en) * | 2016-12-28 | 2017-05-10 | 中冶天工集团天津有限公司 | Heating furnace water beam stand column mounting perpendicularity control method |
| CN206799702U (en) * | 2017-05-25 | 2017-12-26 | 河钢股份有限公司承德分公司 | A kind of heating furnace changes the auxiliary lifting device of water beam |
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2018
- 2018-09-18 CN CN201811087478.7A patent/CN109114975B/en active Active
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