CN103394792A - Method for forming hole in bustle pipe of blast furnace blowing-in device - Google Patents
Method for forming hole in bustle pipe of blast furnace blowing-in device Download PDFInfo
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- CN103394792A CN103394792A CN2013103457870A CN201310345787A CN103394792A CN 103394792 A CN103394792 A CN 103394792A CN 2013103457870 A CN2013103457870 A CN 2013103457870A CN 201310345787 A CN201310345787 A CN 201310345787A CN 103394792 A CN103394792 A CN 103394792A
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Abstract
The invention relates to installment of blast furnace blowing-in devices in smelting engineering, in particular to a method for forming a hole in a bustle pipe of a blast furnace blowing-in device. The method comprises the steps of actually measuring blast furnace tuyere flange data and actual blast furnace blowing-in device size data, manufacturing a hole forming positioning die, manufacturing a hole forming sample plate on the bustle pipe, projecting a hole forming central axis on the bustle pipe through a theodolite, positioning a hole forming center point through the positioning die, drawing a hole forming edge line on the bustle pipe through the hole forming sample plate, and cutting the bustle pipe along the hole forming edge line to form a hole. According to the method, because actually measured construction data are used for measurement deviation rectifying, the hole forming center point is determined through the step that the central axis is projected through the theodolite and the positioning die method, and precise hole forming is achieved through the hole forming sample plate, the technological operation process can be easily, conveniently and fast carried out, and installment quality of the blowing-in device can be effectively guaranteed and improved.
Description
Technical field
The present invention relates to smelt the installation of the air-supply apparatus of blast furnace in engineering, the method for specifically a kind of air-supply apparatus of blast furnace perforate on bustle pipe.
Background technology
air-supply apparatus of blast furnace is positioned at the blast furnace crucibe position, with bustle pipe, be communicated with, the unique equipment that blasts high-temperature hot-air to blast furnace of hot-blast stove, air-supply apparatus of blast furnace is arranged along the last furnace shell even circumferential, for meeting the requirement of blast furnace air-supply, quantitatively arrange more, it is very high that it installs the accuracy requirement aspect installation, installation quality also is directly connected to the production efficiency of blast furnace ironmaking and the service life of blast furnace, air-supply apparatus of blast furnace need be welded to connect (as shown in Figure 1) while installing with bustle pipe after the bustle pipe perforate, therefore the perforate on bustle pipe is the most important condition that air-supply apparatus of blast furnace is accurately installed, it is also the core that the air-supply apparatus of blast furnace high-quality is installed.In installation in the past, the perforate of bustle pipe is by measurement and measuring instrument, to throw the method for surveying combination to position perforate, use the method to carry out the dimensional discrepancy that the perforate existence is larger, when installing, air-supply apparatus of blast furnace often needs the secondary adjustment, and cause perforate excessive, need add stiffening ring at the hole periphery, be difficult to guarantee the installation quality of air-supply apparatus of blast furnace, also cause the increase of construction cost.
Summary of the invention
The present invention is for solving the dimensional discrepancy of air-supply apparatus of blast furnace perforate on bustle pipe in prior art, the problem of difficult quality guarantee after causing air-supply apparatus of blast furnace to be installed, and put forward a kind of air-supply apparatus of blast furnace of arch accurate method of locating holes on bustle pipe, avoid the secondary adjusting operation of perforate, with accelerating construction progress, save construction cost.
The technical scheme that the present invention solves described problem employing is:
The method of a kind of air-supply apparatus of blast furnace perforate on bustle pipe, carry out in the steps below:
(1) actual measurement blast-furnace tuyere flange data: set up theodolite, this theodolite decorating position is aimed at the blast furnace center, throws and surveys longitudinal axis, surveys out the longitudinal axis of throwing survey and the offset distance of former tuyere flange longitudinal axis, and forms record; Set up spirit level, throw and survey axis of pitch, survey out the axis of pitch of throwing survey and the offset distance of former tuyere flange axis of pitch, and form record; With steel ruler, measure the actual range of tuyere flange outer surface apart from last furnace shell, and form record;
(2) air-supply apparatus of blast furnace actual size data actual measurement: assembled air-supply arrangement also just installs in blast-furnace tuyere, the distance of actual measurement Zhi Qi upper end, air-supply apparatus of blast furnace inflection point, survey out the air-supply apparatus of blast furnace bending angle, survey out the distance of air-supply apparatus of blast furnace inflection point to the tuyere flange outer surface, by the data formation record of actual measurement;
(3) make the perforate positioning clamping fixture: according to the measured value of tuyere flange and air-supply apparatus of blast furnace actual size data, in computer, draw the mold manuscript, and measuring the distance of air-supply apparatus of blast furnace inflection point to the bustle pipe outer surface by the Distance Layout of Zhi Qi upper end, air-supply apparatus of blast furnace inflection point of actual measurement, manuscript is namely made positioning clamping fixture after completing;
(4) make the tapping sample plate on bustle pipe: survey out the parts diameter that air-supply apparatus of blast furnace is connected with bustle pipe, according to the parts diameter of actual measurement, on computers, carry out the expansion plane setting-out of connected node again, setting-out goes out the intersection in model sideline, when drawing, intersection should consider the reserved of assemblage gap, and when publishing picture by every the marking in detail apart from size of intersection and perforate cross central axis, the location of every size when guarantee making model;
(5) utilize theodolite to decontrol hole longitudinal center axis at the bustle pipe upslide: the theodolite decorating position is aimed at the blast furnace center, to throw the operation of measuring line according to the tuyere flange longitudinal center axis of having surveyed out, and, by perforate longitudinal axis clear marking on bustle pipe of throwing in out, keep somewhere perforate and use;
(6) utilize positioning clamping fixture locating holes central point: the flange of positioning clamping fixture is connected on tuyere flange, the top position of Tapered Cup that the fine setting positioning clamping fixture makes positioning clamping fixture overlaps with drawing throwing perforate longitudinal center axis, at clear central point after marking location on bustle pipe;
(7) utilize tapping sample plate on bustle pipe, to draw the perforate sideline: tapping sample plate longitudinal center axis and central point and the perforate longitudinal center axis of having thrown in and perforate central point are coincided, ring bustle pipe outer surface is adjacent to model, along the model sideline, on bustle pipe, draws the perforate sideline;
(8) by the perforate sideline, on bustle pipe, cut perforate.
Further, the material of described positioning clamping fixture is light weight steel shape.
Further, described positioning clamping fixture is comprised of interconnection system flange, horizontal cross bar, brace, Tapered Cup and reinforcing rod member, and flange adopts part to empty form.
Further, described tapping sample plate adopts the thin-walled iron plate to make.
Further, described tapping sample plate adopts tarred brown paper to make.
Compared with prior art, outstanding effect of the present invention is: by actual measurement practice of construction data, measure correction, take measuring instrument to throw in central axis and determine perforate central point accurately in conjunction with the method for positioning clamping fixture, utilize tapping sample plate to reach accurate perforate, operational process of craft is simple and efficient, can effectively guarantee and improve the installation quality of air-supply arrangement.
The accompanying drawing explanation
Fig. 1 is the air-supply apparatus of blast furnace scheme of installation.
Fig. 2-1, Fig. 2-2 are tuyere flange data actual measurement schematic diagram.
Fig. 3 is air-supply apparatus of blast furnace actual size data actual measurement schematic diagram.
Fig. 4 is that the perforate positioning clamping fixture is made schematic diagram.
Fig. 5 be in Fig. 4 A-A to view.
Fig. 6 is that tapping sample plate is made schematic diagram.
Fig. 7 is that perforate longitudinal center axis is thrown in schematic diagram.
Fig. 8 is perforate location of the core schematic diagram.
Fig. 9 is that schematic diagram is drawn in the perforate sideline.
Figure 10 is cutting perforate schematic diagram.
in figure: last furnace shell 1, tuyere flange 2, bustle pipe 3, air-supply apparatus of blast furnace 4, construction hanging scaffold 5, theodolite 6, blast furnace center 7, spirit level 8, tuyere platform 9, survey out the longitudinal axis 10 that throwing is surveyed, former tuyere flange longitudinal axis 11, survey out the tuyere flange longitudinal axis 10 of throwing survey and the offset distance 12 of former tuyere flange longitudinal axis 11, survey out the tuyere flange axis of pitch 13 that throwing is surveyed, former tuyere flange axis of pitch 14, survey out the tuyere flange axis of pitch 13 of throwing survey and the offset distance 15 of former tuyere flange axis of pitch 14, the tuyere flange outer surface is apart from the actual range 16 of last furnace shell 1, actual measurement air-supply apparatus of blast furnace inflection point 17, actual measurement air-supply apparatus of blast furnace upper end 18, actual measurement air-supply apparatus of blast furnace inflection point 17 is to the distance 19 of actual measurement air-supply apparatus of blast furnace upper end 18, survey out air-supply apparatus of blast furnace bending angle 20, survey out the distance 21 of air-supply apparatus of blast furnace inflection point 17 to the tuyere flange outer surface, lofting amount is measured the distance 22 of air-supply apparatus of blast furnace inflection point 17 to bustle pipe 3 outer surfaces, interconnection system flange 23, horizontal cross bar 24, brace 25, Tapered Cup 26, reinforce rod member 27, flange drilling 28, part empties 29, tapping sample plate 30, part empties 31, perforate longitudinal center axis 32, perforate central point 33, perforate sideline 34, perforate 35.
The specific embodiment
The invention will be further described below in conjunction with embodiment, and purpose only is to understand better content of the present invention.Therefore, the cited case does not limit the scope of the invention.
Referring to Fig. 1, in the present embodiment, last furnace shell 1 is the cartridge type steel construction, tuyere flange 2 is welded to connect with last furnace shell 1 after last furnace shell 1 perforate, bustle pipe 3 is the tubular type steel construction, along last furnace shell 1 annular configuration, after the upper end of air-supply apparatus of blast furnace 4 and bustle pipe 3 perforates, be welded to connect, for the installation that guarantees air-supply apparatus of blast furnace 4 need be carried out perforate on bustle pipe 3.Below the processing step of accurate locating holes on bustle pipe 3:
(1) tuyere flange data actual measurement: referring to Fig. 2-1, Fig. 2-2, theodolite 6 is set up on construction hanging scaffold 5, theodolite 6 decorating positions are aimed at blast furnace center 7, press layout design and throw survey longitudinal axis 10, survey out the longitudinal axis 10 of throwing survey and the offset distance 12 of former tuyere flange longitudinal axis 11, and form record; Again spirit level 8 is set up on tuyere platform 9, press the layout design size and throw survey axis of pitch 13, survey out the axis of pitch 13 of throwing survey and the offset distance 15 of former tuyere flange axis of pitch 14, and form record; Allow with steel ruler, measure the actual range 16 of tuyere flange outer surface apart from last furnace shell 1 afterwards, and form record.
(2) air-supply apparatus of blast furnace actual size data actual measurement: referring to Fig. 3, by the air-supply arrangement 4 of having marched into the arena, by the standard type of attachment of equipment components is assembled, go out a cover, and just install in air port, the distance 19 of actual measurement air-supply apparatus of blast furnace inflection point 17 to blast furnace air-supply arrangement upper end 18, survey out air-supply apparatus of blast furnace bending angle 20, survey out the distance 21 of air-supply apparatus of blast furnace inflection point 17 to the tuyere flange outer surface, data formation record by actual measurement, guarantee the authenticity of data, in order to subsequent handling, use.
(3) the perforate positioning clamping fixture is made: referring to Fig. 4, Fig. 5, make the material of mold and should select light weight steel shape as far as possible, and not yielding, with the weight that two adults can lift, be advisable, in order to move during operation; Before making, according to the measured value of tuyere flange and air-supply apparatus of blast furnace actual size data, in computer, draw the mold manuscript, and measure the distance 22 of air-supply apparatus of blast furnace inflection point 17 to bustle pipe 3 outer surfaces by distance 19 lofting amounts of air-supply apparatus of blast furnace inflection point 17 to blast furnace air-supply arrangement upper end 18, manuscript is namely made positioning clamping fixture after completing, during making, to strictly control its machining accuracy, guarantee to make data and conform to relevant measured data; The formation of positioning clamping fixture is comprised of interconnection system flange 23, horizontal cross bar 24, brace 25, Tapered Cup 26 and reinforcing rod member 27, wherein in order to alleviate mold weight, flange 23 adopts part to empty 29 forms, interconnection system flange 23 is thrown centered by the longitudinal axis 10 and axis of pitch 13 of surveying by actual measurement, and flange drilling 28 is identical with the position, hole of former tuyere flange 2.
(4) make tapping sample plate: referring to Fig. 6, tapping sample plate 30 adopts tarred brown paper or thin-walled iron plate to make, can be crooked to meet the line of curvature face arbitrarily, and tapping sample plate 30 is mainly used in after the position of opening location completes carrying out the drafting in perforate sideline.Tapping sample plate 30 will first be surveyed out the parts diameter that air-supply apparatus of blast furnace 4 is connected with bustle pipe 3 before making, according to the parts diameter of actual measurement, carry out on computers the expansion plane setting-out of connected node again, setting-out goes out the intersection in tapping sample plate 30 sidelines, when drawing, intersection should consider the reserved of assemblage gap, and when publishing picture by every the marking in detail apart from size of intersection and perforate cross central axis, the location of every size when guarantee making model; After tapping sample plate 30 completes, carry out part in the longitudinal axis of model and center position and empty 31, be beneficial to adjustment and the centering of later stage model position.
(5) perforate longitudinal center axis is thrown in: referring to Fig. 7, the perforate longitudinal axis will should be promoted to correct position by the construction hanging scaffold 5 in blast furnace before throwing in, guarantee by blast-furnace tuyere intervisibility bustle pipe 3, and take interim reinforcement measure that construction hanging scaffold 5 and last furnace shell 1 are connected firmly, assurance has enough rigidity, then theodolite 6 is set up on construction hanging scaffold 5, theodolite 6 decorating positions are aimed at blast furnace center 7, throwing the operation of measuring line is to throw according to the tuyere flange longitudinal center axis 10 of having surveyed out, and by perforate longitudinal center axis 32 clear marking on bustle pipe 3 of throwing in out, keeping somewhere perforate uses.
(6) perforate location of the core: referring to Fig. 8, adopt the positioning clamping fixture that has completed to determine the perforate central point on bustle pipe, at first the interconnection system flange 23 of positioning clamping fixture is connected on tuyere flange 2, and adopt bolt tightening to fix, then finely tuning the top position of Tapered Cup 26 that positioning clamping fixture makes positioning clamping fixture throws perforate longitudinal center axis 32 and overlaps with drawing, perforate central point 33 can be determined, the central point behind location will be on bustle pipe 3 clear marking.
(7) draw in the perforate sideline: referring to Fig. 9, according to perforate longitudinal center axis 32 and the perforate central point 33 thrown in, tapping sample plate 30 longitudinal center's axis and central point are coincided with it, ring bustle pipe 3 outer surfaces are adjacent to tapping sample plate 30, along tapping sample plate 30 sidelines, on bustle pipe 3, draw perforate sideline 34.
(8) cutting perforate: referring to Figure 10, after checking that 34 draftings of confirmation perforate sideline are errorless, can adopt gas cutting 34 to carry out perforate 35 along the perforate sideline, during cutting, first perpendicular to the steel plate direction, cut pore-forming, according to the design groove, the hole edge is cut into to groove again, after perforate 35 cuttings complete, can carry out the installation of air-supply apparatus of blast furnace 4 and bustle pipe 3 attaching parts.
Claims (5)
1. the method for air-supply apparatus of blast furnace perforate on bustle pipe, is characterized in that, carries out in the steps below:
(1) actual measurement blast-furnace tuyere flange data: set up theodolite, this theodolite decorating position is aimed at the blast furnace center, throws and surveys longitudinal axis, surveys out the longitudinal axis of throwing survey and the offset distance of former tuyere flange longitudinal axis, and forms record; Set up spirit level, throw and survey axis of pitch, survey out the axis of pitch of throwing survey and the offset distance of former tuyere flange axis of pitch, and form record; With steel ruler, measure the actual range of tuyere flange outer surface apart from last furnace shell, and form record;
(2) air-supply apparatus of blast furnace actual size data actual measurement: assembled air-supply arrangement also just installs in blast-furnace tuyere, the distance of actual measurement Zhi Qi upper end, air-supply apparatus of blast furnace inflection point, survey out the air-supply apparatus of blast furnace bending angle, survey out the distance of air-supply apparatus of blast furnace inflection point to the tuyere flange outer surface, by the data formation record of actual measurement;
(3) make the perforate positioning clamping fixture: according to the measured value of tuyere flange and air-supply apparatus of blast furnace actual size data, in computer, draw the mold manuscript, and measuring the distance of air-supply apparatus of blast furnace inflection point to the bustle pipe outer surface by the Distance Layout of Zhi Qi upper end, air-supply apparatus of blast furnace inflection point of actual measurement, manuscript is namely made positioning clamping fixture after completing;
Make the tapping sample plate on bustle pipe: survey out the parts diameter that air-supply apparatus of blast furnace is connected with bustle pipe, according to the parts diameter of actual measurement, on computers, carry out the expansion plane setting-out of connected node again, setting-out goes out the intersection in model sideline, when drawing, intersection should consider the reserved of assemblage gap, and when publishing picture by every the marking in detail apart from size of intersection and perforate cross central axis, the location of every size when guarantee making model;
(5) utilize theodolite to decontrol hole longitudinal center axis at the bustle pipe upslide: the theodolite decorating position is aimed at the blast furnace center, to throw the operation of measuring line according to the tuyere flange longitudinal center axis of having surveyed out, and, by perforate longitudinal axis clear marking on bustle pipe of throwing in out, keep somewhere perforate and use;
(6) utilize positioning clamping fixture locating holes central point: the flange of positioning clamping fixture is connected on tuyere flange, the top position of Tapered Cup that the fine setting positioning clamping fixture makes positioning clamping fixture overlaps with drawing throwing perforate longitudinal center axis, at clear central point after marking location on bustle pipe;
(7) utilize tapping sample plate on bustle pipe, to draw the perforate sideline: tapping sample plate longitudinal center axis and central point and the perforate longitudinal center axis of having thrown in and perforate central point are coincided, ring bustle pipe outer surface is adjacent to model, along the model sideline, on bustle pipe, draws the perforate sideline;
(8) by the perforate sideline, on bustle pipe, cut perforate.
2. the method for air-supply apparatus of blast furnace according to claim 1 perforate on bustle pipe, is characterized in that, the material of described positioning clamping fixture is light weight steel shape.
3. the method for air-supply apparatus of blast furnace according to claim 1 perforate on bustle pipe, is characterized in that, described positioning clamping fixture is comprised of interconnection system flange, horizontal cross bar, brace, Tapered Cup and reinforcing rod member, and flange adopts part to empty form.
4. the method for air-supply apparatus of blast furnace according to claim 1 perforate on bustle pipe, is characterized in that, described tapping sample plate adopts the thin-walled iron plate to make.
5. the method for air-supply apparatus of blast furnace according to claim 1 perforate on bustle pipe, is characterized in that, described tapping sample plate adopts tarred brown paper to make.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286465A (en) * | 2013-06-08 | 2013-09-11 | 中国十七冶集团有限公司 | Construction method for preventing welding deformation of converter gasholder base plate |
| CN103624362A (en) * | 2013-11-27 | 2014-03-12 | 北京首钢建设集团有限公司 | Blast furnace shell air opening flange hole forming method |
| CN105695651A (en) * | 2016-04-29 | 2016-06-22 | 中国十九冶集团有限公司 | Positioning device and positioning method for blast furnace air supply device at bustle pipe installation position |
| CN107971679A (en) * | 2017-12-16 | 2018-05-01 | 唐山金山腾宇科技有限公司 | The tensioner pressing plate pairing device of blast furnace air-supply elbow belly pipe |
| CN109371188A (en) * | 2018-11-23 | 2019-02-22 | 上海宝冶冶金工程有限公司 | The blowpipe installation method of blast furnace |
| CN112251557A (en) * | 2020-10-27 | 2021-01-22 | 中国十九冶集团有限公司 | Opening method of blast furnace hot air surrounding pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286465A (en) * | 2013-06-08 | 2013-09-11 | 中国十七冶集团有限公司 | Construction method for preventing welding deformation of converter gasholder base plate |
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| CN107971679A (en) * | 2017-12-16 | 2018-05-01 | 唐山金山腾宇科技有限公司 | The tensioner pressing plate pairing device of blast furnace air-supply elbow belly pipe |
| CN109371188A (en) * | 2018-11-23 | 2019-02-22 | 上海宝冶冶金工程有限公司 | The blowpipe installation method of blast furnace |
| CN112251557A (en) * | 2020-10-27 | 2021-01-22 | 中国十九冶集团有限公司 | Opening method of blast furnace hot air surrounding pipe |
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| CN103394792B (en) | 2015-04-29 |
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