CN103966419A - Heat-resisting sliding block of steel rolling heating furnace - Google Patents
Heat-resisting sliding block of steel rolling heating furnace Download PDFInfo
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- CN103966419A CN103966419A CN201410220826.9A CN201410220826A CN103966419A CN 103966419 A CN103966419 A CN 103966419A CN 201410220826 A CN201410220826 A CN 201410220826A CN 103966419 A CN103966419 A CN 103966419A
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Abstract
The invention provides a heat-resisting sliding block of a steel rolling heating furnace. According to the heat-resisting sliding block, a semi-groove is additionally formed in an existing heat-resisting sliding block; the semi-groove transversely penetrates through the upper part of the heat-resisting sliding block; a round through hole is formed in the lower part of the heat-resisting sliding block; the lower end surface of the sliding block is an arc surface; the radius of the arc surface is identical to the outer diameter of a longitudinal water tube; an included angle of 90 degree is formed between two side surfaces of the arc surface. Due to adoption of the semi-groove, longitudinal expansion force inside the heat-resisting sliding block can be effectively eliminated, longitudinal water tube breakage caused by the longitudinal expansion force of the heat-resisting sliding block is avoided, the arc surface at the lower end surface can be seamlessly adhered to the longitudinal water tube, and an angle weld joint for welding is formed by the included angle of 90 degrees between the two side surfaces, so that the heat conduction of the longitudinal water tube of the heat-resisting sliding block is enhanced, the temperature of the heat-resisting sliding block is effectively reduced, the longitudinal expansion force generated inside the heat-resisting sliding block is further reduced, and the transverse breakage of the longitudinal water tube is avoided. The heat-resisting sliding block of the steel rolling heating furnace, which is provided by the invention, is simple in production process and low in cost, the frequency and the time for stopping the furnace for overhaul are effectively reduced and shortened, and thus the purposes of yield increase, energy conservation and consumption reduction are achieved.
Description
Technical field
The present invention relates to heater for rolling steel water beam slide block structure technical field, be specifically related to a kind of heater for rolling steel heat temperature resisting sliding lumps.
Background technology
Process furnace is equipment important in Steel Mill, its effect is that steel ingot or heating steel billet are arrived to the temperature of rolling, in pusher-type furnace, steel ingot or steel billet are placed on that the vertical water beam (vertical water pipe) of heat temperature resisting sliding lumps is housed is upper, by pusher, steel ingot or steel billet are pushed to heating-furnace head from process furnace afterbody and complete heating.
The heat temperature resisting sliding lumps stock size of existing process furnace is 200 × 70 × 50mm, be made up, and heat temperature resisting sliding lumps is welded on vertical water beam of high temperature steel.
In process of production, the phenomenon of vertical water beam and heat temperature resisting sliding lumps weld transverse breakage can occur, cause leaked water in vertical water beam and must blowing out processing, impact is normally produced.The reason that this phenomenon occurs mainly contains three aspects: 1, heat temperature resisting sliding lumps be heated after longitudinal dilatation power excessive, will indulge water pipe and " tear " crackle.2, the thrust of pusher, make steel billet easily " stuck " on slide block, thereby slide block is suffered has been added on the vertical water beam welding together with it to the thrust of steel billet from pusher.3, laminating, the rack of fusion between heat temperature resisting sliding lumps and vertical water pipe, causes heat temperature resisting sliding lumps to conduct heat to vertical water pipe bad, and heat temperature resisting sliding lumps entirety be heated inequality and excess Temperature cause bulging force excessive and will indulge water pipe and " tear " crackle.
At present, for slide block expanded by heating serious with the uneven problem of conducting heat to vertical water beam, many producers make improvement to heat temperature resisting sliding lumps, mainly reduce the heat of steel billet to the transmission of water beam by increasing thermal resistance, as adopting the refractory alloy that thermal resistance is larger, the general cost of this mode is higher.Or the mode of employing composite casting, slider bottom adopts the low top of heat resisting temperature to adopt the high alloy manufacture of heat resisting temperature, and there is the higher problem of relative internal resistance in the general thermal resistance of producing of this mode, and production process complexity equally.
Therefore, in order to address the above problem, design is a can avoid vertical water beam because of the heat temperature resisting sliding lumps heat temperature resisting sliding lumps of tearing that expands, and reduces costs and production complexity, just problem to be solved by this invention simultaneously.
Summary of the invention
The object of the invention is to provide a kind of heater for rolling steel heat temperature resisting sliding lumps, to solve the excessive and problem that will indulge water pipe and " tear " crackle of thermal expansion force that existing process furnace causes due to heat temperature resisting sliding lumps excess Temperature, also solved heat between existing process furnace heat temperature resisting sliding lumps and vertical water pipe and transmitted bad problem simultaneously, reduce furnace outage time and the blowing out number of times of process furnace, reach the object of volume increase consumption reduction.
The object of the invention is achieved through the following technical solutions: a kind of heater for rolling steel heat temperature resisting sliding lumps is provided, in the middle of described heat temperature resisting sliding lumps top, be provided with half groove, described half groove laterally runs through described heat temperature resisting sliding lumps, described half well width is 3-7mm, the degree of depth is 30-40mm, and described half groove lower end is cast with the manhole that diameter is 5-10mm; Wherein, described manhole diameter is greater than described half well width.
Preferably, the lower surface of described heat temperature resisting sliding lumps casts the arc surface that radius is R, and described arc surface two sides angle is 90 °; Wherein, described R is identical with described vertical water pipe external diameter size, and described arc surface two sides and described vertical water pipe form the fillet weld of welding.
Preferably, described half well width is 5mm, and the degree of depth is 40mm, and described manhole diameter is 10mm.
Preferably, described slide block has an inclined-plane at a upper lateral part of steel billet delivery direction, and meeting to a upper lateral part of steel billet delivery direction of described half groove also has an inclined-plane.
Compared with prior art, the present invention has following beneficial effect:
Heater for rolling steel heat temperature resisting sliding lumps of the present invention, by half groove that laterally runs through heat temperature resisting sliding lumps is set in the middle of described heat temperature resisting sliding lumps, the manhole of half groove and bottom can be eliminated the thermal expansion force that heat temperature resisting sliding lumps inside produces due to excess Temperature, when the arranging of manhole can make half groove of heat temperature resisting sliding lumps be in to be subject to from the thrust of steel billet, half trench bottom is stressed evenly, has reduced heat temperature resisting sliding lumps and has easily produced the risk of crack or fracture owing to being provided with half groove.Simultaneously, described heat temperature resisting sliding lumps lower surface is cast to the arc surface that radius is identical with vertical water pipe external diameter, plane included angle, arc surface both sides is 90 °, heat temperature resisting sliding lumps can be fitted tightly with vertical water pipe, be conducive to heat temperature resisting sliding lumps to vertical water pipe uniformly transfer heat, the fillet weld that simultaneously arc surface both sides form strengthens bonding area, has further strengthened heat temperature resisting sliding lumps and has conducted heat to vertical water pipe, thereby effectively reduced the impact of the thermal expansion force of heat temperature resisting sliding lumps generation.And the set inclined-plane of heat temperature resisting sliding lumps one end and half groove one side, can be convenient to steel billet slides on heat temperature resisting sliding lumps, reduce the thrust of steel billet to slide block, having eliminated heat temperature resisting sliding lumps may make thrust act on by heat temperature resisting sliding lumps the impact that vertical water pipe causes it " to be torn " by " stuck " steel billet.
Heater for rolling steel heat temperature resisting sliding lumps production technique of the present invention is simple, with low cost, and by eliminating self thermal expansion force of heat temperature resisting sliding lumps, the accident of having avoided well vertical water pipe " to be torn " crackle occurs, can effectively reduce number of times and the time of shutdown maintenance, thus reach volume increase, energy-conservation, consumption reduction object.
Brief description of the drawings
Fig. 1 is the front view of heater for rolling steel of the present invention heat temperature resisting sliding lumps;
Fig. 2 is the vertical view of heater for rolling steel of the present invention heat temperature resisting sliding lumps;
Fig. 3 is the side-view of heater for rolling steel of the present invention heat temperature resisting sliding lumps.
Label declaration: 1-arc surface side, 2-inclined-plane, 3-arc surface, 4-half groove, 5-manhole, a-slide block length, b-slide block width, c-slide block height, d-half groove depth, e-half well width, R-radius.
Embodiment
For the present invention is described better, hereby with a preferred embodiment, and coordinate accompanying drawing 1, Fig. 2 and Fig. 3 to elaborate to the present invention, specific as follows:
Referring to Fig. 1, Fig. 2 and Fig. 3, is a kind of heater for rolling steel heat temperature resisting sliding lumps of the present invention, and heat temperature resisting sliding lumps is that casting heat resistant steel forms.Heat temperature resisting sliding lumps stock size is: slide block length a is 160～200mm, slide block width b is 60～70mm, and slide block height c is 50～60mm, and the heat temperature resisting sliding lumps preferred size in the present embodiment is: slide block length a is 200mm, slide block width b is 70mm, and slide block height c is 50mm.
As shown in Figure 1 and Figure 2, be provided with half groove 4, half grooves 4 and laterally run through heat temperature resisting sliding lumps in the middle of the top of heat temperature resisting sliding lumps, half groove depth d is 30～40mm, and half well width e is 3～7mm, and half groove 4 lower ends are cast with the manhole 5 that diameter is 5～10mm.The diameter R5 of manhole 5 is greater than half well width e.Half groove 4 arranging on heat temperature resisting sliding lumps and the manhole 5 of its underpart can effectively be eliminated the inner longitudinal thermal expansion force producing of heat temperature resisting sliding lumps, and then reduce the transmission of thermal expansion force to vertical water pipe, have avoided vertical water pipe " to be torn " crackle because of under tension.And manhole 5 the thrust that can make half groove of heat temperature resisting sliding lumps be in to be subject to from steel billet is set time, the bottom of half groove 4 is stressed evenly, has reduced heat temperature resisting sliding lumps easily produces crack or fracture occurs risk owing to being provided with half groove 4.
Preferably, half groove depth d in the present embodiment is 40mm, and half well width e is 5mm, and the diameter R5 of the manhole 5 of half groove 4 lower ends is 10mm.
In embodiments of the invention, heat temperature resisting sliding lumps also has inclined-plane 2, and as shown in Figure 1 and Figure 2, wherein, inclined-plane 21 is positioned at the upper lateral part of heat temperature resisting sliding lumps at steel billet delivery direction, and inclined-plane 22 is positioned at half groove at a upper lateral part of meeting to steel billet delivery direction.The setting on inclined-plane 2 can be convenient to steel billet on heat temperature resisting sliding lumps to front slide, reduced the resistance of steel billet to slide block, thereby eliminated the impact that heat temperature resisting sliding lumps may " stuck " steel billet.
Heat temperature resisting sliding lumps bottom in the embodiment of the present invention is designed as shown in Figure 3, and heat temperature resisting sliding lumps bottom is that radius is the arc surface 3 of R, and wherein, the size of R is identical with the external diameter size of vertical water pipe.On heat temperature resisting sliding lumps, arc surface 3 both sides also have two arc surface sides 11,12, and the angle of arc surface side 11,12 is 90 °.Adopt this structure to make heat temperature resisting sliding lumps arc surface 3 and vertical water pipe good fit, the heat of being convenient to heat temperature resisting sliding lumps conducts well to vertical water pipe, thereby reduces the generation of longitudinal thermal expansion force of heat temperature resisting sliding lumps.Simultaneously, two arc surface side 11,12 angles in 90 °, had both ensured the contact area that heat temperature resisting sliding lumps and vertical water pipe are certain, avoided again because angle is excessive, the excessive heat temperature resisting sliding lumps bottom heat radiation causing of heat temperature resisting sliding lumps and vertical water pipe contact area is too fast, the heat temperature resisting sliding lumps entirety uneven problem of being heated.And these 90 ° of angles are convenient to two arc surface sides 11,12 of heat temperature resisting sliding lumps and the tube wall of vertical water pipe is formed for the fillet weld of welding, compare the weld seam of other types, the bonding area of fillet weld strengthens, also can strengthen heat temperature resisting sliding lumps and conduct heat to vertical water pipe, thereby further reduce the impact of the thermal expansion force that heat temperature resisting sliding lumps inside produces.
The heat temperature resisting sliding lumps of the embodiment of the present invention can avoid vertical water pipe " to tear " crackle due to longitudinal pulling force effectively.Thereby prevent that vertical water pipe fracture accident from occurring, and then reduce blowing out number of times and time and reach volume increase, the energy-conservation and object that lowers consumption.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, in the technical scope that any those skilled in the art discloses in the present invention; the distortion that the present invention is done or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (4)
1. a heater for rolling steel heat temperature resisting sliding lumps, be arranged on a vertical water pipe, it is characterized in that: in the middle of described heat temperature resisting sliding lumps top, be provided with half groove, described half groove laterally runs through described heat temperature resisting sliding lumps, described half well width is 3-7mm, the degree of depth is 30-40mm, and described half groove lower end is cast with the manhole that diameter is 5-10mm;
Wherein, described manhole diameter is greater than described half well width.
2. heater for rolling steel heat temperature resisting sliding lumps according to claim 1, is characterized in that, the lower surface of described heat temperature resisting sliding lumps casts the arc surface that radius is R, and described arc surface two sides angle is 90 °;
Wherein, described R is identical with described vertical water pipe external diameter size, and described arc surface two sides and described vertical water pipe form the fillet weld of welding.
3. heater for rolling steel heat temperature resisting sliding lumps according to claim 1, is characterized in that, described half well width is 5mm, and the degree of depth is 40mm, and described manhole diameter is 10mm.
4. heater for rolling steel heat temperature resisting sliding lumps according to claim 1, is characterized in that, described slide block has an inclined-plane at a upper lateral part of steel billet delivery direction, and meeting to a upper lateral part of steel billet delivery direction of described half groove also has an inclined-plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410220826.9A CN103966419B (en) | 2014-05-23 | 2014-05-23 | A kind of heater for rolling steel heat temperature resisting sliding lumps |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410220826.9A CN103966419B (en) | 2014-05-23 | 2014-05-23 | A kind of heater for rolling steel heat temperature resisting sliding lumps |
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| CN103966419A true CN103966419A (en) | 2014-08-06 |
| CN103966419B CN103966419B (en) | 2016-04-27 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104357647A (en) * | 2014-11-26 | 2015-02-18 | 攀枝花钢城集团有限公司 | Tapping slide rail of steel-pushing type heating furnace |
| CN107916327A (en) * | 2017-10-24 | 2018-04-17 | 芜湖新兴铸管有限责任公司 | Heater for rolling steel |
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| CN2489291Y (en) * | 2001-07-31 | 2002-05-01 | 广东省韶关钢铁集团有限公司 | Slide track slide block for heating furnace |
| CN201215438Y (en) * | 2008-04-24 | 2009-04-01 | 王洪大 | Sliding block for heating stove |
| CN201908118U (en) * | 2010-07-10 | 2011-07-27 | 新兴铸管股份有限公司 | Furnace-in sliding rail for steel-pushing type heating furnace |
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| CN203159681U (en) * | 2013-02-22 | 2013-08-28 | 新疆八一钢铁股份有限公司 | Improved fixing structure of heat-resisting sliding blocks of heating furnace |
| CN203508955U (en) * | 2013-08-30 | 2014-04-02 | 泰州枫叶冶金设备有限公司 | Composite casting type heat-resisting sliding block casting die |
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| CN203855623U (en) * | 2014-05-23 | 2014-10-01 | 上海宝钢节能环保技术有限公司 | Heat-resisting slide block of steel rolling heating furnace |
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2014
- 2014-05-23 CN CN201410220826.9A patent/CN103966419B/en active Active
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| CN2489291Y (en) * | 2001-07-31 | 2002-05-01 | 广东省韶关钢铁集团有限公司 | Slide track slide block for heating furnace |
| CN201215438Y (en) * | 2008-04-24 | 2009-04-01 | 王洪大 | Sliding block for heating stove |
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| CN203159681U (en) * | 2013-02-22 | 2013-08-28 | 新疆八一钢铁股份有限公司 | Improved fixing structure of heat-resisting sliding blocks of heating furnace |
| CN203508955U (en) * | 2013-08-30 | 2014-04-02 | 泰州枫叶冶金设备有限公司 | Composite casting type heat-resisting sliding block casting die |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104357647A (en) * | 2014-11-26 | 2015-02-18 | 攀枝花钢城集团有限公司 | Tapping slide rail of steel-pushing type heating furnace |
| CN107916327A (en) * | 2017-10-24 | 2018-04-17 | 芜湖新兴铸管有限责任公司 | Heater for rolling steel |
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| Publication number | Publication date |
|---|---|
| CN103966419B (en) | 2016-04-27 |
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