CN104058577A - Tin bath production and installation method for float glass line - Google Patents
Tin bath production and installation method for float glass line Download PDFInfo
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- CN104058577A CN104058577A CN201410322122.2A CN201410322122A CN104058577A CN 104058577 A CN104058577 A CN 104058577A CN 201410322122 A CN201410322122 A CN 201410322122A CN 104058577 A CN104058577 A CN 104058577A
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Abstract
The invention discloses a tin bath production and installation method for a float glass line. The method comprises the following steps: basic acceptance check, bath bottom frame assembling and installation, tin bath installing, assembling and levelling, bath bottom brick installation, stand column top steel structure installation, top cover installation, and other part installation, the tin bath production and installation method is characterized in that in the bath bottom frame assembling and installation, a tin bath bottom cross beam, a longitudinal beam and a bath bottom are produced and assembled in a mould in an installation site, and the mould is a recyclable combined steel platform; in the bath bottom brick installation, bottom brick construction is conducted by the central line of the bath bottom; and the central line of the bath bottom is consistent with that of a melting furnace, with error of +/-1mm, and marking is well done in the bath bottom. The tin bath production and installation method has the characteristics of being simple and convenient for the production of a frame platform, compact and sequential for construction procedures, low in labor intensity, capable of saving raw materials, fast in construction progress, excellent in quality, and low in cost.
Description
Technical field
The invention belongs to equipment field engineering field, specifically relate to a kind of molten tin bath fabrication and installation method for float glass line.
Background technology
Molten tin bath is one of three large Thermal Equipments on floatation glass production line, and the quality of molten tin bath installation quality directly has influence on the work-ing life of products production quality and equipment, and the control of the planeness quality of bottom land is the most important thing especially.Molten tin bath bottom structure generally adopts makes factory's blanking, is then transported to erecting stage and is grouping installation, and the precision of blanking is controlled difficulty, once deviation appears in field assembly, will waste lot of materials; Field assembly need to be made framework platform, and platform making amount is larger, and be finished can only be as waste disposal, and for guaranteeing that group is to quality, platform setting accuracy is had relatively high expectations simultaneously, and welding difficulty is large, work consuming consuming time; Easily occur welding distortion, group is large to quality control difficulty.
Summary of the invention
The object of the invention is to overcome above-mentioned shortcoming and provide a kind of framework platform manufacture simple, convenient, and operational procedure is compact and not disorderly, labour intensity is low, the molten tin bath fabrication and installation method for float glass line of save material, construction speed is fast, superior in quality, cost is low.
A kind of molten tin bath fabrication and installation method for float glass line of the present invention, comprise step: inspect for acceptance in basis, bottom land frame set is installed levelling, the installation of bottom land brick, the installation of column top steel structure, overhead guard installation and other positions installation, molten tin bath installation group, first the method uses spirit-leveling instrument levelling on construction ground with section steel material, framework is assembled to centering levelling thereon, at shoring of foundation steel construction, adjust after levelling, every joint lifting is in place, all after installation in position, through adjustment, leveling after the assay was approved, carry out integral body and lay steel plate, welding; After welding, according to design requirements, medullary ray and planeness are adjusted, until be up to the standards; Carrying out whole laying of molten tin bath base plate adopts 9 levelling technology, in erecting stage, molten tin bath base plate is carried out to levelling, welding; Then carry out the installation at the installation of bottom land brick and other positions, wherein: described bottom land frame set is in installing, molten tin bath bottom crossbeam, longeron and bottom land are right in erecting stage making group, carry out making group right on mold, and mold is the knockdown steel platform can be recycled; Described bottom land brick carries out end brick construction with bottom land medullary ray in installing; Bottom land medullary ray should be consistent with melting furnaces medullary ray, error ± 1mm, and perform mark at bottom land.
The above-mentioned molten tin bath fabrication and installation method for float glass line, wherein: during described bottom land brick is installed, end brick is laid to both sides from wide section of limit of variable cross-section, installs after three row's end bricks to wide section according to variable cross-section sideline, then by variable cross-section place to brick at the bottom of the installation of both sides; According to molten tin bath bottom medullary ray and variable cross-section sideline, by medullary ray, to both sides paving one row's brick, each gap of every brick clips expansion joint plate by design.
The above-mentioned molten tin bath fabrication and installation method for float glass line, wherein: during described bottom land brick is installed, abutment wall brick and end brick are laid simultaneously, paving mode is as end brick, after each is arranged brick and completes, abutment wall brick and the timber wedge wedging of side plate space.
The above-mentioned molten tin bath fabrication and installation method for float glass line; wherein: during described bottom land brick is installed; after the whole installation qualifications of bottom land; whole bottom land is cleaned out; remove expansion joint plate, on end brick, integral body completely spreads plastic cloth, repaves fiberboard protection on plastic cloth; top cover brick is come on fiberboard in advance by design use location, while top cover brick being installed after being beneficial to, save time.
The above-mentioned molten tin bath fabrication and installation method for float glass line, wherein: during described bottom land brick is installed, end brick surface level error is not more than 1mm, and between adjacent two bricks, the discrepancy in elevation should be not more than 2mm; Graphite Powder 99, the inspection of edge sealing material are made firm by ramming solid; End brick standing bolt wants firm welding vertical, and verticality errors of centration is less than 0.5mm; Every layer of breast wall brick built by laying bricks or stones should be smooth vertical, and planeness is less than 3mm/2m, and verticality overall height is less than 3mm; The top cover brick discrepancy in elevation is less than 2mm, and planeness should be less than 3mm/2m, and integral smoothness should be less than 15mm.
The present invention compares with prior art, has obvious beneficial effect, from above scheme, adopts 9 levellings, field assembly technology, and symmetrical fixed frame reduces rehandling, has effectively controlled distortion; Take the whole laying scheme of molten tin bath bottom and the measure of gravity preventing deformation, effectively reduce trough floor distortion; Utilize centre mark method to carry out molten tin bath base plate paving, by physical size line, the Whole blanking of mark, guaranteed the precision of the whole morpheme size of trough floor, saved material simultaneously, for the body of heater of molten tin bath base plate, build operation by laying bricks or stones quality assurance is provided; The knockdown steel platform that setting can be recycled, as mold, has been guaranteed making quality and degree of plainness for structural memer, has also saved steel platform and has made material, saving of work and time, energy-conserving and environment-protective; By the operating technique to bottom land brick and abutment wall brick, improve the installation quality of molten tin bath.
Below, by embodiment, further illustrate beneficial effect of the present invention.
Embodiment
A kind of molten tin bath fabrication and installation method for float glass line of the present invention, comprise step: inspect for acceptance in basis, bottom land frame set is installed levelling, the installation of bottom land brick, the installation of column top steel structure, overhead guard installation and other positions installation, molten tin bath installation group, first the method uses spirit-leveling instrument levelling on construction ground with section steel material, framework is assembled to centering levelling thereon, at shoring of foundation steel construction, adjust after levelling, every joint lifting is in place, all after installation in position, through adjustment, leveling after the assay was approved, carry out integral body and lay steel plate, welding; After welding, according to design requirements, medullary ray and planeness are adjusted, until be up to the standards; Then carry out the installation at the installation of bottom land brick and other positions.
Inspect for acceptance in 1 basis
The civil engineering data of handing over providing according to construction unit is checked examination, and instant proposition of pinpointing the problems, organizes civil engineering unit by construction unit, and the tripartite of installation unit checks.
Molten tin bath longitudinal cenlerline, the centre mark of 1# column medullary ray (62200mm is benchmark apart from kiln 1# port medullary ray), checks and accepts by the built-in fitting of standard, does not allow with the paint warning triangle on concrete basis.
Datum mark is embedded on factory building column with rivet or knob bolt, does not allow to be embedded on floor, does not more allow to substitute with expansion bolt.
Molten tin bath basis check and accept emphasis be orientating group on schedule, the absolute altitude of built-in fitting gives relative dimension and the surface of base planeness of boxing out, each size of wall screw.
2 bottom land frame set are to installing
(1) blanking
Blanking is front to there being the shaped steel (joist steel, channel-section steel, angle steel) of distortion to correct, permissible error after rectification should meet the regulation of appendix A in < < Steel Structure Work construction and acceptance specification > > GB50205-95 4.2.2 bar, and the permissible variation of the deflection rise f of shaped steel is length 1/1500.
Before blanking, select the little shaped steel of tolerance dimension to make the beam in length and breadth of molten tin bath bottom, the shaped steel that tolerance dimension is close is made the pot shell frame material of same joint.During oxygen-acetylene cutting, periphery stays the cutting quantity of 1 ㎜.The cutting of all component and sideline must be smooth smooth, must not be uneven or leave burr, and institute is porose must be boring, does not allow to cut pore-forming with gas welding.
(2) group to, welding
Bottom land frame set is to carrying out in erecting stage, take group to medullary ray (molten tin bath medullary ray) as the symmetrical group of benchmark is to bottom land framework, can effectively control welding distortion.Frame center line, frame line, chassis base plane error≤0.5 ㎜.Each diagonal lines error≤2 of framework ㎜, frame set to after outside dimensions than large 5 ㎜ of size (consider postwelding shrinkage), on framework, stamp medullary ray, organize planeness≤1 ㎜ of plane on right framework.
2 bottom land installation groups are to levelling
2.1 bottom land crossbeams are installed
(1) base cross members and column are placed backing plate on concrete basis by standard, and grind flat concrete basic plane, reach backing plate and concrete basis, between backing plate and plant bottom case baseplane, be adjacent to gapless, fastening foundation bolt, its elasticity inspection, beats with 2 pounds of hand hammers, and backing plate non-loosening is qualified.
(2) molten tin bath bottom crossbeam, longeron and bottom land are right in erecting stage making group, carry out making group right on mold, and mold is the knockdown steel platform can be recycled.
(3) crossbeam is installed, and with the vertical cross central line of molten tin bath, carries out levelling, with spirit-leveling instrument, detects and aligns its absolute altitude, with 0.5/m water level gauge, detects its vertical equity degree, by standard, reaches up-to-standard.
(4) connect and adjust absolute altitude and the spacing of longeron, crossbeam allows to add monoblock levelling pad 1～2mm between being connected with longeron.After being fastenedly connected bolt, with spirit-leveling instrument, detect its absolute altitude and planeness, detection position is that on the position of placing at bottom land roller, check point is no less than 128 points.
2.2 trough floor are installed
(1) after bottom land crossbeam installs, roller at the bottom of placement and connection slot, bottom land lifting wireline will tie up on the position of bottom land balance, hangs reposefully on the roller of longeron track, and bottom land is that entrance is installed location, to rear portion, installed section by section from head joint.Or from transition segment, location is installed, and install simultaneously section by section at two ends forwards, backwards, and the latter not only can speed up the work, and welding contracted quantity easy to control.
(2) no matter bottom land installation is to start location from head joint or transition segment, all with molten tin bath in length and breadth medullary ray control its size, with spirit-leveling instrument, detect its absolute altitude and planeness, after reaching standard, connect and longeron spot welding location, the trough floor spot welding of second section or next joint (having located joint), first with retaining plate spot welding, be connected with the side plate of joint with the time, with this installation method until last periproct.
(3) on the steel platform that trough floor is made at the scene, integral body additionally arranges, according to the on-the-spot line cutting of figure paper size, and then welding, its medullary ray of attention inspection is consistent with design centre line; Bottom land is installed splicing will strictly control parallelism between joint and joint, simultaneously strict control joint and save between welding contracted quantity.Trough floor joint is generally got 2mm, the about 1.5mm of welding contracted quantity of per pass weld seam with the counterpart weld gap of joint.Adopt 9 levelling technology to carry out levelling to base plate, by the adjustment of 18, reference mark simultaneously.Planeness ± 1.5/3 ㎡.
(4) trough floor is installed butt welding and is taked assembled welding process, covered arc welding back cover, and then positive is union-melt weld, welding current 50～600A, voltage 35～40V.In welding process, as found, polishing machine back chipping repair welding for indivedual pores, above method refer generally to the center of counterpart position while welding between joint and joint.If counterpart weld seam bottom is designed with liner or counterpart weld seam at Liang Shangshi, cancel sealing run, reduce or cancel and produce alignment clearance.
(5) trough floor weld joint air-tight check kerosene osmose process, i.e. the positive painting of weld seam whiting, the rear positive kerosene that is coated with to be dried, there is not permeating oil mark in the weld seam that was coated with whiting after 30 minutes, is this weld seam ne-leakage qualified.
2.3 groove side plates are installed
(1) take group that molten tin bath medullary ray marks side plate as benchmark to line, group, to tin bath shell-side plate (side plate must through plate edge planing machine plane limit passed examination), checks that bead, to the distance between medullary ray, makes side plate perpendicular to base plate, the temporary supporting of burn-oning.Group is to the angle steel outside side plate and gusset.
(2) side plate blanking, peripheral size adds 10 ㎜, draws and checks line (its diagonal lines error≤2 ㎜).Upper plate edge planing machine finished edge.
(3) after pot shell and steel platform being clamped by steel clamp, with angle steel and the gusset outside the symmetrical intermittent welding access slot of two welding operator shell-side plate.Weld with automatic welding machine side plate inner side simultaneously.Postwelding is removed side plate and is supported, and unclamps fixture, adjusts verticality≤1.5 ㎜ of side plate, planeness≤1.5 ㎜.
(4) weld seam between side plate and base plate is carried out to leak test (interior brush kerosene, outer brush chalk powder, after 2 hours, without leakage is qualified) with kerosene, qualified after, remove overlap, splash and rusty stain, brush twice red lead paint.
3 tin bath brick structures are installed
All weldments are removed slag and metal splash in time, to avoid in pollution groove and to affect installation and the expansion of molten tin bath brick structure.
End brick should carry out unwrapping wire before laying on bottom land.With bottom land medullary ray, carry out end brick construction.Bottom land medullary ray should be consistent with melting furnaces medullary ray, error ± 1mm, and perform mark at bottom land.
3.1 end bricks are laid
End brick is laid to both sides from wide section of limit of variable cross-section.According to variable cross-section sideline, install after three row's end bricks to wide section, then by variable cross-section place to brick at the bottom of the installation of both sides.According to molten tin bath bottom medullary ray and variable cross-section sideline, by medullary ray, to both sides paving one row's brick, each gap of every brick clips expansion joint plate by design.
3.2 abutment wall bricks are laid
Abutment wall brick and end brick are laid simultaneously, and paving mode is as end brick, after each row's brick is completed, and abutment wall brick and the timber wedge wedging of side plate space.Brick upper surface of the mounted end is built with three-ply-wood or other article, prevents slag thing, contamination by dust brick surface and falls in hole.
3.3 banding constructions
Graphite Powder 99, sealing of hole material and end brick is installed is synchronizeed and carry out.
3.4 dome bricks are laid
After the whole installation qualifications of bottom land, whole bottom land is cleaned out, removed expansion joint plate, on end brick, integral body completely spreads plastic cloth, repaves fiberboard protection on plastic cloth.
Top cover brick is come on fiberboard in advance by design use location.While top cover brick being installed after being beneficial to, save time.
3.5 brick structure specification of quality
End brick surface level error≤1mm, answer≤2mm of the discrepancy in elevation between adjacent two bricks.Graphite Powder 99, the inspection of edge sealing material are made firm by ramming solid.End brick standing bolt wants firm welding vertical, verticality errors of centration く 0.5mm.Every layer of breast wall brick built by laying bricks or stones should be smooth vertical, planeness≤3mm/2m, verticality overall height < 3mm.Top cover brick discrepancy in elevation < 2mm, planeness is answered < 3mm/2m, and integral smoothness is answered < 15mm.
4 column tops and other steel structures are installed
Column, binding beam are installed, and it is quite important that column is installed backing plate, the good and bad stability that affect column of installation quality, thereby the size of backing plate, quantity, stowed location is wanted strict implement standard, is the verticality of assurance column.Column and binding beam are in expert's permission situation.Can increase adjustment pad, also allow to do interim connection with shaped steel and bottom land simultaneously, in order to avoid to affect the verticality of column poor owing to hanging top cross beam and overhead guard.
The welding technological process of overhead guard framework, the group of fundamental sum bottom land shell framework is identical to, weldprocedure.
Banding, in making processes, except guaranteeing that the lagging material density of filling reaches 220kg/m3, also requires the physical dimension deviation of banding to be not more than 1mm, has the banding of compression ring chamber should carry out gas-tightness test, test pressure 0.15MPa.
For the fabrication and installation of float glass line molten tin bath, the construction technology of the inventive method is advanced, and operational procedure is compact, and and not disorderly, labour intensity is low, saves material, brownout, and construction speed is fast, superior in quality, and cost is low, remarkable in economical benefits.The lining processing quality that new technology, novel process, the new installation simultaneously adopting is molten tin bath provides guarantee, for client created more economic benefit (in Table 1 and table 2).
Table 1 adopts traditional method planned cost
| Sequence number | Title | Unit | Quantity | Unit price (yuan/ton) | Close valency (unit) |
| 1 | Driving | Machine-team | 150 | 500 | 75000 |
| 2 | Joist steel I 28a | Rice | 48 | 5000 | 10435 |
| 3 | Joist steel I 32a | Rice | 36 | 5000 | 9490 |
| 4 | Channel-section steel ［ 20 | Rice | 48 | 5000 | 5435 |
| 5 | Steel plate | ㎏ | 500 | 4500 yuan/t | 2250 |
| 6 | Manually | Work day | 2250 | 60 yuan/work day | 135000 |
| Add up to | 237610 |
Table 2 adopts method of the present invention
| Sequence number | Title | Unit | Quantity | Unit price (unit) | Close valency (unit) |
| 1 | 5t driving | Machine-team | 90 | 500 | 35000 |
| 2 | Manually | Work day | 1170 | 60 yuan/work day | 7020 |
| 3 | Steel plate | ㎏ | 500 | 4500 | 2250 |
| Add up to | 107450 |
By the analysis of table and table 2, adopt traditional constructional method to compare and can reduce expenses 130160 yuan with employing constructional method of the present invention.
The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, any technical solution of the present invention content that do not depart from, any simple modification, equivalent variations and the modification above embodiment done according to technical spirit of the present invention, all still belong in the scope of technical solution of the present invention.
Claims (5)
1. the molten tin bath fabrication and installation method for float glass line, comprise step: inspect for acceptance in basis, bottom land frame set is installed levelling, the installation of bottom land brick, the installation of column top steel structure, overhead guard installation and other positions installation, molten tin bath installation group, first the method uses spirit-leveling instrument levelling on construction ground with section steel material, framework is assembled to centering levelling thereon, at shoring of foundation steel construction, adjust after levelling, every joint lifting is in place, all after installation in position, through adjustment, leveling after the assay was approved, carry out integral body and lay steel plate, welding; After welding, according to design requirements, medullary ray and planeness are adjusted, until be up to the standards; Carrying out whole laying of molten tin bath base plate adopts 9 levelling technology, in erecting stage, molten tin bath base plate is carried out to levelling, welding; Then carry out the installation at the installation of bottom land brick and other positions, be characterised in that: described bottom land frame set is in installing, molten tin bath bottom crossbeam, longeron and bottom land are right in erecting stage making group, carry out making group right on mold, and mold is the knockdown steel platform can be recycled; Described bottom land brick carries out end brick construction with bottom land medullary ray in installing; Bottom land medullary ray should be consistent with melting furnaces medullary ray, error ± 1mm, and perform mark at bottom land.
2. the molten tin bath fabrication and installation method for float glass line as claimed in claim 1, it is characterized in that: during described bottom land brick is installed, end brick is laid to both sides from wide section of limit of variable cross-section, according to variable cross-section sideline, install after three row's end bricks to wide section, then by variable cross-section place to brick at the bottom of the installation of both sides; According to molten tin bath bottom medullary ray and variable cross-section sideline, by medullary ray, to both sides paving one row's brick, each gap of every brick clips expansion joint plate by design.
3. the molten tin bath fabrication and installation method for float glass line as claimed in claim 2, it is characterized in that: during described bottom land brick is installed, abutment wall brick and end brick are laid simultaneously, and paving mode is as end brick, after each row's brick is completed, abutment wall brick and the timber wedge wedging of side plate space.
4. the molten tin bath fabrication and installation method for float glass line as claimed in claim 3; it is characterized in that: during described bottom land brick is installed; after the whole installation qualifications of bottom land; whole bottom land is cleaned out; remove expansion joint plate, on end brick, integral body completely spreads plastic cloth, repaves fiberboard protection on plastic cloth; top cover brick is come on fiberboard in advance by design use location, while top cover brick being installed after being beneficial to, save time.
5. the molten tin bath fabrication and installation method for float glass line as described in any one in claim 1 to 4, is characterized in that: during described bottom land brick is installed, end brick surface level error is not more than 1mm, and between adjacent two bricks, the discrepancy in elevation should be not more than 2mm; Graphite Powder 99, the inspection of edge sealing material are made firm by ramming solid; End brick standing bolt wants firm welding vertical, and verticality errors of centration is less than 0.5mm; Every layer of breast wall brick built by laying bricks or stones should be smooth vertical, and planeness is less than 3mm/2m, and verticality overall height is less than 3mm; The top cover brick discrepancy in elevation is less than 2mm, and planeness should be less than 3mm/2m, and integral smoothness should be less than 15mm.
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| CN201410322122.2A CN104058577B (en) | 2014-07-08 | 2014-07-08 | A kind of molten tin bath fabrication and installation method for float glass line |
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| CN104058577B CN104058577B (en) | 2016-07-27 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111995228A (en) * | 2020-07-28 | 2020-11-27 | 上海宝冶冶金工程有限公司 | Construction method of tin bath refractory of float glass kiln |
| CN115367996A (en) * | 2022-07-28 | 2022-11-22 | 陕西彩虹工业智能科技有限公司 | Production equipment for manufacturing hot end of flexible glass and installation construction paying-off method |
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| CN2839272Y (en) * | 2005-08-22 | 2006-11-22 | 秦皇岛玻璃工业研究设计院 | Float glass tin tank bottom structure |
| CN101381200A (en) * | 2007-09-04 | 2009-03-11 | 上海宝冶建设有限公司 | Tin pot base production method of float glass production line |
| CN201923942U (en) * | 2010-12-30 | 2011-08-10 | 河北东旭投资集团有限公司 | Tin bath forming device used in technology for producing glass substrate through float process |
| CN103508659A (en) * | 2012-10-15 | 2014-01-15 | 中国有色金属工业第六冶金建设有限公司 | Molten tin bath manufacturing and installing process |
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2014
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2839272Y (en) * | 2005-08-22 | 2006-11-22 | 秦皇岛玻璃工业研究设计院 | Float glass tin tank bottom structure |
| CN101381200A (en) * | 2007-09-04 | 2009-03-11 | 上海宝冶建设有限公司 | Tin pot base production method of float glass production line |
| CN201923942U (en) * | 2010-12-30 | 2011-08-10 | 河北东旭投资集团有限公司 | Tin bath forming device used in technology for producing glass substrate through float process |
| CN103508659A (en) * | 2012-10-15 | 2014-01-15 | 中国有色金属工业第六冶金建设有限公司 | Molten tin bath manufacturing and installing process |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111995228A (en) * | 2020-07-28 | 2020-11-27 | 上海宝冶冶金工程有限公司 | Construction method of tin bath refractory of float glass kiln |
| CN111995228B (en) * | 2020-07-28 | 2022-09-23 | 上海宝冶冶金工程有限公司 | Construction method of tin bath refractory of float glass kiln |
| CN115367996A (en) * | 2022-07-28 | 2022-11-22 | 陕西彩虹工业智能科技有限公司 | Production equipment for manufacturing hot end of flexible glass and installation construction paying-off method |
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|---|---|
| CN104058577B (en) | 2016-07-27 |
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