CN103290203A - Large section steel billet girder type heating furnace bottom stepping device - Google Patents
Large section steel billet girder type heating furnace bottom stepping device Download PDFInfo
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- CN103290203A CN103290203A CN201310253777.4A CN201310253777A CN103290203A CN 103290203 A CN103290203 A CN 103290203A CN 201310253777 A CN201310253777 A CN 201310253777A CN 103290203 A CN103290203 A CN 103290203A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 75
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- 238000010438 heat treatment Methods 0.000 title abstract description 18
- 238000013519 translation Methods 0.000 claims abstract description 104
- 230000014616 translation Effects 0.000 claims description 96
- 238000010276 construction Methods 0.000 claims description 3
- 241001125877 Gobio gobio Species 0.000 claims 1
- 238000005096 rolling process Methods 0.000 abstract description 19
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- 238000000034 method Methods 0.000 description 17
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- 230000033001 locomotion Effects 0.000 description 10
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- 238000010586 diagram Methods 0.000 description 4
- 229910000851 Alloy steel Inorganic materials 0.000 description 3
- 238000005314 correlation function Methods 0.000 description 3
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- 238000005098 hot rolling Methods 0.000 description 3
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- 150000001875 compounds Chemical class 0.000 description 1
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Abstract
The invention relates to a large section steel billet girder type heating furnace bottom stepping device which is characterized by consisting of a translation framework, an elevating framework, translation rolling wheels, elevating rolling wheels, inclined guide rail seats, translation and elevating framework lateral positioning guide wheel groups, elevating drive devices, and translation drive devices, wherein the translation rolling wheels and the elevating rolling wheels are arranged on an installation face of the elevating framework, the center lines of the translation rolling wheels and the center lines of the elevating rolling wheels are superposed and a lead hammer is suspended above the floor, the vertical direction running distance of each of the translation framework and the elevating framework is 220 mm, and the horizontal direction running distance of the translation framework ranges between 0 to 350 mm. The large section steel billet girder type heating furnace bottom stepping device solves the problem that a large section steel billet, particularly a phi600 round steel billet which is 12 meters in length, is an excessive steel load to be heated in a stepping girder type heating furnace. The large section steel billet girder type heating furnace bottom stepping device is characterized by large rigidity, simple and compact transmission structure, convenience of manufacture and installation, convenience of maintenance and overhaul, and the like. The large section steel billet girder type heating furnace bottom stepping device is also advantaged by small number of moving parts, good interchangeability, small number of spare part kinds, and greatly reduced daily point inspection and maintenance and overhaul work.
Description
Technical field
The invention belongs to the production process equipment in hot rolling, thermal treatment field, relate to a kind of Φ 600 circle 12 meters specification steel billet walking beam heating furnace walking machinery facilities, particularly step devices at the bottom of a kind of big section steel billet beam type heating-furnace.
Background technology
Recently domestic and international market constantly increases the demand of steel alloy, bearing steel, major-diameter thick-wall alloy steel pipe, the demand of big section steel alloy, bearing steel particularly, objectively require metallurgical hot rolling enterprise to solve the production capacity problem, satisfy the market product demand, improve enterprise operation ability and earning capacity.Domestic enterprise generally reduces big section steel billet length at present, or shortens process furnace length, solves the excessive problem of hot rolling workshop process furnace dress steel load, also will dispose many process furnace simultaneously and satisfy the requirement of rolling line production capacity.Because big section steel billet length reduces, the dimensions of rolled products reduces, and has influenced the specification that enterprise product is produced, and causes reducing product competitiveness; The process furnace curtailment influences process furnace output, can not satisfy the rolling line rolling rhythm, and this just needs many process furnace of configuration to satisfy the rolling requirement of rolling line, causes the rolling line rolling power idle, causes waste, increases the enterprises using the labor cost.For solving the design deficiency of the existing big section steel billet of process furnace furnace bottom walking machinery, therefore designing a kind of big section steel billet walking beam heating furnace furnace bottom walking machinery just becomes present urgency problem to be solved.
Summary of the invention
The present invention has overcome the defective of above-mentioned existence, purpose is for solving particularly 12 meters long Φ 600 round steel billets of big section steel billet, in the walking beam heating furnace stove, cross the problem of steel heating, realize building a process furnace and can satisfy rolling line rolling rhythm and production capacity demand, when save taking up an area of, reducing the quantity of labour force, alleviate maintenance load and cut operating costs, improve enterprise investment benefit and social benefit, step device at the bottom of a kind of big section steel billet beam type heating-furnace is provided.
Step device content Description at the bottom of the big section steel billet of the present invention beam type heating-furnace:
Step device at the bottom of the big section steel billet of the present invention beam type heating-furnace, it is characterized in that: be by translational frame, lifting frame, the translation roller, the lifting roller, the slant rail seat, translation and lifting frame lateral register guide wheel group, lifting drive and translation driving device constitute, the upper strata of step device is provided with translational frame at the bottom of the big section steel billet beam type heating-furnace, the below of translational frame is provided with the translation roller, lifting frame, lifting roller and slant rail seat, be provided with the translation track plate in the bottom of translational frame, the quantity of translation track plate is identical with the translation number of rollers, and the translation track plate is installed in the bottom of translational frame by bolted mode; Translation roller and lifting roller are arranged on the mounting face of lifting frame, the central lines of translation roller and lifting roller and plummet terrace.
Translation roller, lifting roller and slant rail seat are corresponding one by one respectively establishes row along medullary ray is left and right, and the position symmetry; Translation roller, lifting roller are identical with slant rail seat quantity, are arranged on length direction and arrange by uniform distances, and the slant rail seat is provided with the oblique orbit plate.
The side symmetric arrangement translation of translational frame and lifting frame and lifting frame lateral register guide wheel group arrange group translation and lifting frame lateral register guide wheel group along its length.
Upper surface at the slant rail seat is provided with the oblique orbit plate, and the rail level angle of inclination is 10.5 degree, and the slant rail seat links to each other with the basis by wall screw, is provided with stop block below the track plate.
The translation roller is arranged on the top of lifting frame, and the lifting roller is arranged on the bottom of lifting frame, adopts bolt to connect into integral body.
Below lifting frame, be provided with 4 cover lifting drives, lifting hydraulic cylinder of every cover lifting drive configuration, the angle of inclination of lifting hydraulic cylinder is identical with the angle of inclination of slant rail seat, be separately positioned on the bottom of lifting frame girder, along the medullary ray symmetric arrangement, every side two covers, the lifting hydraulic cylinder rod end is connected with lifting frame by the ear seat, and the bottom is welded into integral body by steel construction and slant rail seat.
Translation driving device is made of two middle gudgeon formula translation hydro-cylinders, driven in translation beam and translation hydraulic cylinder bases, the direction of passage proportional valve control, two translation hydro-cylinder positioned opposite, link to each other with concrete foundation by the translation hydraulic cylinder base, be fixed on the concrete foundation by wall screw, the translation hydraulic cylinder piston rod is hinged hang head by ear seat surface opposite with the driven in translation beam by Bolt Connection, the driven in translation beam connects with translational frame again, be arranged on translational frame below.
Translational frame and lifting frame vertical direction range ability 220mm, translational frame horizontal direction range ability 0-350mm.
Step device at the bottom of the big section steel billet of the present invention beam type heating-furnace has solved particularly 12 meters long Φ 600 round steel billets of big section steel billet, crosses the problem of steel heating in the walking beam heating furnace stove, has that rigidity is big, drive mechanism is simply compact; Make easy for installationly, be easy to characteristics such as maintenance, maintenance; Moving parts is few, interchangeability good, the spare part kind is few, has significantly reduced daily spot check and Maintenance and Repair work.Equipment operates steadily, noiselessness; Low cost of manufacture, good economy performance.
Description of drawings
Fig. 1 is step device structural representation at the bottom of the big section steel billet beam type heating-furnace;
Fig. 2 is step device structure side view at the bottom of the big section steel billet beam type heating-furnace;
Fig. 3 is slant rail holder structure synoptic diagram of the present invention;
Fig. 4 is roller structure synoptic diagram of the present invention;
Fig. 5 is lifting drive structural representation of the present invention;
Fig. 6 is translational frame driving device structure synoptic diagram of the present invention;
Fig. 7 is translational frame drive unit hydraulic schematic diagram of the present invention;
Among the figure: the 1st, translational frame, the 2nd, lifting frame, the 3rd, translation roller, the 4th, lifting roller, the 5th, slant rail seat, the 6th, translation and lifting frame lateral register guide wheel group, the 7th, lifting drive, the 8th, translation driving device, the 9th, oblique orbit plate, the 10th, translation track plate, the 11st, stop block, the 12nd, lifting hydraulic cylinder, the 13rd, translation hydraulic cylinder base, the 14th, the translation cylinder drives beam, the 15th, translation hydro-cylinder, the 16th, direction proportional valve, the 17th, shuttle valve, the 18th, cartridge valve, the 19th, equilibrium valve.
Embodiment
Step device is achieved in that to do below in conjunction with accompanying drawing and specifies at the bottom of the big section steel billet of the present invention beam type heating-furnace.See Fig. 1～Fig. 7, step device at the bottom of the big section steel billet of the present invention beam type heating-furnace is used for supporting each functional component of process furnace, realizes heating-furnace tail dress steel, and the steel billet of the stove of will packing into moves to burner length by length from the stove tail, comes out of the stove to be sent to rolling line or heat-treatment lines is processed.Be by: translational frame 1, lifting frame 2, translation roller 3, lifting roller 4, slant rail seat 5, translation and lifting frame lateral register guide wheel group 6, lifting drive 7 and translation driving device 8 constitute, can realize normal circulation, contrary circulate, mark time, the middle maintenance and the stepping latency function, all functions are controlled hydro-cylinder by hydraulic valve bank and are moved to realize.Lifting hydraulic cylinder and translation hydro-cylinder built-in linear displacement sensor are monitored the miles of relative movement of each arrival rate that moves for setting, and are revised or compensate in the identical movement of the next one, and can control automatically also can manual operation.
The upper strata of step device is provided with translational frame 1 at the bottom of the big section steel billet beam type heating-furnace, and translational frame 1 supports each correlation function parts of process furnace; The below of translational frame 1 is provided with translation roller 3, lifting frame 2, lifting roller 4 and slant rail seat 5, is provided with translation track plate 10 in the bottom of translational frame 1, and translation track plate 10 quantity are identical with translation roller 3 quantity.Translation track plate 10 is installed in the bottom of translational frame 1 by bolted mode.Translation roller 3 is arranged on the mounting face of lifting frame 2 with lifting roller 4, central lines and the plummet terrace of translation roller 3 and lifting roller 4, this kind structure is conducive to translational frame 2 load of bearing is delivered to lifting roller 4 by translation roller 3 and lifting frame 2, is supported on the slant rail seat 5 by lifting roller 4 again.Translation roller 3, lifting roller 4 and slant rail seat 5 are corresponding one by one respectively establishes row along medullary ray is left and right, and the position symmetry; Translation roller 3, lifting roller 4 are identical with slant rail seat 5 quantity, are arranged at the bottom of the big section steel billet beam type heating-furnace length direction of step device and arrange by uniform distances.Slant rail seat 5 is provided with oblique orbit plate 9, and it bears all wtss such as the interior steel billet of apparatus body, process furnace correlation function parts and stove, and load is big, requires to have enough intensity and surperficial contact fatigue strength.Only a little less than the load of oblique orbit plate 9, two kinds of track plates all use the 50Mn2 steel plate to make to translation track plate 10 carry loads, and are whole modified, hard surfacing.The translation track plate is 10 modified in the present invention, hard surfacing is slightly different with oblique orbit plate 9, considers to have enough toughness.
The side symmetric arrangement translation of translational frame 1 and lifting frame 2 and lifting frame lateral register guide wheel group 6, being used for constraint two frameworks can only be along device length direction and movement in vertical direction, and can not side-to-side movement.The present invention arranges 3 groups of translations and lifting frame lateral register guide wheel group 6 is used for retraining two frameworks along the device length direction, and such mistake positioning design can increase the rigidity of equipment, reduces the horizontal and vertical sideslip of steel billet when motion in the stove.
Below lifting frame 2, be provided with 4 cover lifting drives 7, lifting hydraulic cylinder 12 of every cover lifting drive 7 configurations.The angle of inclination of lifting hydraulic cylinder 12 is identical with the angle of inclination of slant rail seat 5, be separately positioned on the bottom of lifting frame 2 girders, along the medullary ray symmetric arrangement, every side two covers, lifting hydraulic cylinder 12 rod ends are connected with lifting frame 2 by the ear seat, the bottom is welded into integral body by steel construction and slant rail seat 5, one side simplified apparatus structure, and one side increases the supporting capacity of lifting hydraulic cylinder 12 bases.
Translation driving device 8 is made of two middle gudgeon formula translation hydro-cylinders 15, driven in translation beam 14 and translation hydraulic cylinder bases 13,16 controls of direction of passage ratio, two translation hydro-cylinders 15 link to each other with concrete foundation by translation hydraulic cylinder base 13, are fixed on the concrete foundation by wall screw.Translation hydro-cylinder 15 piston rods are hinged hang head by ear seat surface opposite with driven in translation beam 14 by Bolt Connection, driven in translation beam 14 connects with translational frame 1 again, be arranged on translational frame 1 below.Another piston rod withdrawal when a piston rod ejects in the translation hydro-cylinder 15, translational frame 1 step pitch of advancing; Otherwise another piston rod ejects translational frame 1 a slow astern step pitch when a piston rod is withdrawn in the translation hydro-cylinder 15.
The length of oblique orbit plate 9 should satisfy the requirement of lifting hydraulic cylinder total travel, and the length of translation track plate 10 seesaws the 350mm length except satisfying translational frame, also will satisfy the relative movement requirement of translational frame 1 and lifting frame 2.
The action of step device can be decomposed into the tangential movement of up-and-down movement and translational frame at the bottom of the big section steel billet of the present invention beam type heating-furnace.Be specially: when 4 hydraulic cylinder piston rods of translation hydro-cylinder 15 in the lifting drive 7 ejected, the lifting roller 4 of lifting frame 2 bottoms rolled along slant rail seat 5 rail levels; Lifting frame 2 holds up translational frame 1 by translation roller 3, and translation roller 3 rolls along translation track plate 10; Show as lifting frame 2 and move obliquely upward along slant rail seat 5, translational frame 1 only moves upward in the vertical direction owing to the effect of translation driving device 8.Otherwise when 4 hydraulic cylinder piston rods of translation hydro-cylinder 15 in the lifting drive 7 were withdrawn, lifting frame 2 moved to oblique below along slant rail seat 5, and turns back to starting position, and translational frame 1 only moves downward in the vertical direction.Translation driving device 8 can drive translational frame 1 and seesaw.Two kinds of actions compound just can be realized the various states of steel billet in process furnace.Motion from the stove tail to burner is referred to as normal circulation as steel billet; Motion from burner to the stove tail is referred to as contrary circulation; If only be lifting drive 7 reciprocation actions, steel billet will be held up repeatedly and be put down in the stove, be referred to as to mark time.By the combination of several basic functions, can finish the conveying of steel billet in the process furnace, and satisfy different heating process requirements.
See Fig. 1, Fig. 6 and Fig. 7, a electro-magnet gets electric b electro-magnet and gets electricly in direction proportional valve 16, and during another rodless cavity draining of rodless cavity oil supply, translational frame 1 travels forward, and advances to specified location in the translation hydro-cylinder 15; When direction proportional valve 16 a electro-magnet dead electricity, the b electro-magnet gets electric, rodless cavity draining in the translation hydro-cylinder 15, and during another rodless cavity oil supply, translational frame 1 moves backward, and retreats into specified location; When direction proportional valve 16 a electro-magnet and b electro-magnet all during dead electricity, two piston rods are failure to actuate in the translation hydro-cylinder 15, and translational frame 1 will be parked in the corresponding position.Constitute the differential pressure reducing valve by shuttle valve 17 and cartridge valve 18, make the oil inlet and outlet pressure reduction of direction proportional valve 16 constant, protection direction proportional valve 16 spools are avoided impacting.Equilibrium valve 19 plays the hydraulic lock effect on the one hand, provides back pressure for the loop on the one hand, translational frame 1 is operated steadily, and can keep resting on arbitrary specified location.
The present invention is that example describes with Φ 600 round steel billets.The distance that translational frame 1, lifting frame 2 rise and descend is 220mm; The move distance of translational frame 1 horizontal direction is 350mm.Translational frame 1 and lifting frame 2 supporting beams are positioned at steel billet travel line below 110mm, during rising 220mm steel billet are held up 110mm, translational frame 1 350mm that advances, and per 2 stepping periods are adorned a steel billet, and the 700mm that namely whenever advances adorns Φ 600 round steel.Translational frame 1 and lifting frame 2 be at low level fashionable dress steel, and two framework rising 220mm hold up steel billet behind the dress steel, translational frame 1 350mm that advances, and two framework decline steel billets are moved forward 350mm, and translational frame 1 retreats and resets; Repeat an action, the steel billet 700mm that advances continues to load a steel billet; The furnace bottom walking machinery will be filled steel billet and the steel billet of the stove of will packing into moves to burner length by length from the stove tail in the process furnace so repeatedly, and heating comes out of the stove after qualified is sent to rolling line or heat-treatment lines is processed.
Step device at the bottom of the big section steel billet of the present invention beam type heating-furnace, particularly 12 meters long Φ 600 round steel billets of big section steel billet have been solved, in the walking beam heating furnace stove, cross the problem of steel heating, realize building a process furnace and can satisfy rolling line rolling rhythm and production capacity demand, when save taking up an area of, reducing the quantity of labour force, alleviate maintenance load and cut operating costs, improve enterprise investment benefit and social benefit, have that rigidity is big, drive mechanism is simply compact; Make easy for installationly, be easy to characteristics such as maintenance, maintenance; Moving parts is few, interchangeability good, the spare part kind is few, has significantly reduced daily spot check and Maintenance and Repair work.Equipment operates steadily, noiselessness; Low cost of manufacture, good economy performance.
Claims (8)
1. step device at the bottom of one kind big section steel billet beam type heating-furnace, it is characterized in that: be by translational frame (1), lifting frame (2), translation roller (3), lifting roller (4), slant rail seat (5), translation and lifting frame lateral register guide wheel group (6), lifting drive (7) and translation driving device (8) constitute, the upper strata of step device is provided with translational frame (1) at the bottom of the big section steel billet beam type heating-furnace, the below of translational frame (1) is provided with translation roller (3), lifting frame (2), lifting roller (4) and slant rail seat (5), be provided with translation track plate (10) in the bottom of translational frame (1), the quantity of translation track plate (10) is identical with translation roller (3) quantity, and translation track plate (10) is installed in the bottom of translational frame (1) by bolted mode; Translation roller (3) is arranged on the mounting face of lifting frame (2) with lifting roller (4), central lines and the plummet terrace of translation roller (3) and lifting roller (4).
2. step device at the bottom of the big section steel billet beam type heating-furnace according to claim 1 is characterized in that: translation roller (3), lifting roller (4) and slant rail seat (5) are corresponding one by one respectively establishes row along medullary ray is left and right, and the position symmetry; Translation roller (3), lifting roller (4) are identical with slant rail seat (5) quantity, are arranged on length direction and arrange by uniform distances, and slant rail seat (5) is provided with oblique orbit plate (9).
3. step device at the bottom of the big section steel billet beam type heating-furnace according to claim 1, it is characterized in that: the side symmetric arrangement translation of translational frame (1) and lifting frame (2) and lifting frame lateral register guide wheel group (6) arrange 3 groups of translations and lifting frame lateral register guide wheel group (6) along its length.
4. step device at the bottom of the big section steel billet beam type heating-furnace according to claim 1, it is characterized in that: the upper surface at slant rail seat (5) is provided with oblique orbit plate (9), the rail level angle of inclination is 10.5 degree, slant rail seat (5) links to each other with the basis by wall screw, is provided with stop block (11) below the track plate.
5. step device at the bottom of the big section steel billet beam type heating-furnace according to claim 1, it is characterized in that: translation roller (3) is arranged on the top of lifting frame (2), lifting roller (4) is arranged on the bottom of lifting frame (2), adopts bolt to connect into integral body.
6. step device at the bottom of the big section steel billet beam type heating-furnace according to claim 1, it is characterized in that: be provided with 4 cover lifting drives (7) in lifting frame (2) below, every cover lifting drive (7) configuration lifting hydraulic cylinder (12), the angle of inclination of lifting hydraulic cylinder (12) is identical with the angle of inclination of slant rail seat (5), be separately positioned on the bottom of lifting frame (2) girder, along the medullary ray symmetric arrangement, every side two covers, lifting hydraulic cylinder (12) rod end is connected with lifting frame (2) by the ear seat, and the bottom is welded into integral body by steel construction and slant rail seat (5).
7. step device at the bottom of the big section steel billet beam type heating-furnace according to claim 1, it is characterized in that: translation driving device (8) is by two middle gudgeon formula translation hydro-cylinders (15), driven in translation beam (14) and translation hydraulic cylinder base (13) constitute, direction of passage proportional valve (16) control, two translation hydro-cylinders (15) positioned opposite, link to each other with concrete foundation by translation hydraulic cylinder base (13), be fixed on the concrete foundation by wall screw, translation hydro-cylinder (15) piston rod is hinged to be hung head and passes through Bolt Connection by ear seat surface opposite with driven in translation beam (14), driven in translation beam (14) connects with translational frame (1) again, be installed in translational frame (1) below.
8. step device at the bottom of the big section steel billet beam type heating-furnace according to claim 1 is characterized in that: translational frame (1) and lifting frame (2) vertical direction range ability 220mm, translational frame (1) horizontal direction range ability 0-350mm.
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Cited By (11)
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| CN103486853A (en) * | 2013-09-26 | 2014-01-01 | 中国十九冶集团有限公司 | Method for mounting stepping device of stepping-beam-type heating furnace |
| CN104328247A (en) * | 2014-11-25 | 2015-02-04 | 无锡市晶瑜冶金机械有限公司 | Easy-to-regulate ramp assembly of stepping furnace |
| CN104328246A (en) * | 2014-11-25 | 2015-02-04 | 无锡市晶瑜冶金机械有限公司 | Easily-adjustable assembly for inclined rails of walking furnace lifting cylinder |
| CN104388632A (en) * | 2014-11-25 | 2015-03-04 | 无锡市晶瑜冶金机械有限公司 | Inclined rail assembly in walking beam furnace |
| CN104390454A (en) * | 2014-11-25 | 2015-03-04 | 无锡市晶瑜冶金机械有限公司 | Stepping furnace |
| CN104388633A (en) * | 2014-11-25 | 2015-03-04 | 无锡市晶瑜冶金机械有限公司 | Lift cylinder inclined rail assembly in walking beam furnace |
| CN106584049A (en) * | 2016-11-04 | 2017-04-26 | 中冶天工集团天津有限公司 | Stepping beam type heating furnace oblique rail installing precision control method |
| CN106907923A (en) * | 2015-12-22 | 2017-06-30 | 中国二十冶集团有限公司 | Walking beam type plate blank heating furnace quickly renovates method |
| CN108036640A (en) * | 2017-10-19 | 2018-05-15 | 杭州金舟科技股份有限公司 | A kind of step-by-step movement gas heating furnace |
| CN108267011A (en) * | 2018-01-19 | 2018-07-10 | 山东钢铁集团日照有限公司 | A kind of hot rolling slab promotes the device of translation |
| CN108754120A (en) * | 2018-08-27 | 2018-11-06 | 苏州正益诚新能源科技有限公司 | A kind of pre- hot actuating device of steel billet of step-by-step movement scrap steel preheating stove |
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| CN103486853A (en) * | 2013-09-26 | 2014-01-01 | 中国十九冶集团有限公司 | Method for mounting stepping device of stepping-beam-type heating furnace |
| CN103486853B (en) * | 2013-09-26 | 2015-05-06 | 中国十九冶集团有限公司 | Method for mounting stepping device of stepping-beam-type heating furnace |
| CN104388632A (en) * | 2014-11-25 | 2015-03-04 | 无锡市晶瑜冶金机械有限公司 | Inclined rail assembly in walking beam furnace |
| CN104328246A (en) * | 2014-11-25 | 2015-02-04 | 无锡市晶瑜冶金机械有限公司 | Easily-adjustable assembly for inclined rails of walking furnace lifting cylinder |
| CN104390454A (en) * | 2014-11-25 | 2015-03-04 | 无锡市晶瑜冶金机械有限公司 | Stepping furnace |
| CN104388633A (en) * | 2014-11-25 | 2015-03-04 | 无锡市晶瑜冶金机械有限公司 | Lift cylinder inclined rail assembly in walking beam furnace |
| CN104328247A (en) * | 2014-11-25 | 2015-02-04 | 无锡市晶瑜冶金机械有限公司 | Easy-to-regulate ramp assembly of stepping furnace |
| CN106907923A (en) * | 2015-12-22 | 2017-06-30 | 中国二十冶集团有限公司 | Walking beam type plate blank heating furnace quickly renovates method |
| CN106584049A (en) * | 2016-11-04 | 2017-04-26 | 中冶天工集团天津有限公司 | Stepping beam type heating furnace oblique rail installing precision control method |
| CN108036640A (en) * | 2017-10-19 | 2018-05-15 | 杭州金舟科技股份有限公司 | A kind of step-by-step movement gas heating furnace |
| CN108267011A (en) * | 2018-01-19 | 2018-07-10 | 山东钢铁集团日照有限公司 | A kind of hot rolling slab promotes the device of translation |
| CN108267011B (en) * | 2018-01-19 | 2019-08-27 | 山东钢铁集团日照有限公司 | A kind of hot rolling slab promotes the device of translation |
| CN108754120A (en) * | 2018-08-27 | 2018-11-06 | 苏州正益诚新能源科技有限公司 | A kind of pre- hot actuating device of steel billet of step-by-step movement scrap steel preheating stove |
| CN108754120B (en) * | 2018-08-27 | 2024-01-26 | 苏州正益诚新能源科技有限公司 | Billet preheating driving device of stepping type scrap steel preheating furnace |
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Application publication date: 20130911 |