CN104313341B - A kind of electroslag smelting auxiliary material automatic feeding device - Google Patents
A kind of electroslag smelting auxiliary material automatic feeding device Download PDFInfo
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- CN104313341B CN104313341B CN201410596151.8A CN201410596151A CN104313341B CN 104313341 B CN104313341 B CN 104313341B CN 201410596151 A CN201410596151 A CN 201410596151A CN 104313341 B CN104313341 B CN 104313341B
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Abstract
The invention discloses a kind of electroslag smelting auxiliary material automatic feeding device, it is characterized in that, comprise discharge part-structure and power-control section structure; Described discharge part-structure comprises the frame that is arranged at crystallizer side, and frame upper end edge horizontal direction is provided with a pair of belt pulley, and belt pulley upper ring cap is provided with conveyer belt, and conveyer belt one end is positioned at crystallizer top and the other end away from the setting of crystallizer direction; Described power-control section structure comprises horizontal cantilever elevating mechanism and interlock controlling organization, and interlock controlling organization is connected between horizontal cantilever and discharge part-structure and by the lifting interlock of horizontal cantilever and controls discharge part-structure discharge. The present invention has simple in structure, can realize while smelting and automatically add auxiliary material, and it is reliable and stable that auxiliary material adds control procedure, makes the advantages such as metallurgical effect is good.
Description
Technical field
The present invention relates to a kind of metal smelt technology, relate in particular to a kind of electroslag smelting auxiliary material automatic feeding device.
Background technology
Metal electric slag hearth (having another name called electroslag refining furnace) is the resistance heat that produces while utilizing electric current by slag carries out melting a kind of metallurgical equipment as thermal source, its structure mainly comprises that entirety is the crystallizer of stove shape, is positioned at the column of crystallizer one side, column top is provided with horizontal cantilever, on horizontal cantilever, just crystallizer is provided with to the electrode that extends down into crystallizer by terminal clamp.
When electroslag furnace smelting work, electroslag is put into crystallizer, and above crystallizer, form the slag bath for the treatment of melting, adopt terminal clamp to clamp cylindrical electrode, and allow electrode, slag bath, metal bath, steel ingot, end water tank can form current loop by short net wire and transformer. While carrying out electroslag smelting, first this electrode is inserted in slag away from the end of electroslag smelting terminal clamp, subsequently electrode is switched on, in galvanization, electrode and slag bath are emitted Joule heat, by the regulus fusing in slag bath. Motlten metal pools liquid state, through slag bath, falls into crystallizer and forms metal bath, and be subject to water-cooled effect simultaneously, solidifies rapidly formation steel ingot. Before ingot solidification, the metal bath above it and slag bath, play insulation and feeding effect, ensures the compactness of steel ingot. In smelting process, on crystallizer inwall, be formed with the thin skull of one deck, not only make surface of steel ingot bright and clean, also play insulation and heat-blocking action, more heat is conducted to bottom, be conducive to steel ingot crystallographic orientation from bottom to top. Based on above reason, the ingot quality produced by electroslag smelting is good, performance is excellent, and the plasticity under low temperature, room temperature and the high temperature of steel alloy and impact flexibility strengthen, and steel extend service life, therefore electroslag smelting technique is widely used in the industry.
But in existing electroslag smelting technique, the increase of steel oxygen content, the plasticity of steel, toughness drop, another oxide also makes the reduction such as wearability, corrosion resistance of steel. Therefore in esr process, add continuously at regular time and quantity micro-auxiliary material to there is important function as aluminum shot etc. carries out diffusive deoxidation, as it can suppress the oxygen content in metal bath, thereby finally reduce the oxygen content in steel. Can reduce steel ingot pore, loose and segregation generation simultaneously. Add appropriate auxiliary material also can reduce the scaling loss of silicon in steel, the spot segregation of favourable minimizing steel. And effectively make the sulfur content of steel reduce, improve the degree of purity of steel etc. At present, in electroslag smelting process, auxiliary material adds multiplex artificial with the interpolation of iron spoon, operating temperature is high, and dust is many, is harmful to health, and reinforced inhomogeneous, discontinuous or feeding quantity is wayward etc., often cause electroslag smelting product qualified rate low, and special electroslag smelting auxiliary material feeding device is also little, thereby the deoxidation that process aspect is specified etc. can not reach good effect, greatly affect composition and the smelting quality of ESR ingot.
China's number of patent application 201320175064.6 once disclosed a kind of electroslag furnace aluminum shot charger controller, belonged to the reinforced technical field of automatic control of electroslag furnace. Technical scheme is: feed often leaves node strings and is connected on feed vibration electromagnet loop, discharge often leaves node strings and is connected on discharge vibration electromagnet loop, cylinder is often opened node strings and is connected on discharging cylinder loop, and feed often leaves node coil, discharge and often opens the gentle cylinder of node coil and often open node coil and be connected with Programmable Logic Controller respectively. So this patent is only to disclose a kind of technology that aluminum shot discharge quantity is controlled, still cannot solves and how to realize automatic blanking by machinery, and then avoid the problem of all adverse effects that manual operation brings.
Summary of the invention
For above-mentioned the deficiencies in the prior art, technical problem to be solved by this invention is: how to provide a kind of simple in structure, automatically add auxiliary material, the electroslag smelting auxiliary material automatic feeding device that metallurgical effect is good can realize smelting time.
In order to solve the problems of the technologies described above, the present invention has adopted following technical scheme:
A kind of electroslag smelting auxiliary material automatic feeding device, is characterized in that, comprises discharge part-structure and power-control section structure; Described discharge part-structure comprises the frame that is arranged at crystallizer side, and frame upper end edge horizontal direction is provided with a pair of belt pulley, and belt pulley upper ring cap is provided with conveyer belt, and conveyer belt one end is positioned at crystallizer top and the other end away from the setting of crystallizer direction; Described power-control section structure comprises horizontal cantilever elevating mechanism and interlock controlling organization, and interlock controlling organization is connected between horizontal cantilever and discharge part-structure and by the lifting interlock of horizontal cantilever and controls discharge part-structure discharge.
In electroslag smelting stove, be provided with after this automatic feeding device, can be when smelting the automatic interpolation of the auxiliary material such as aluminum shot, add the scaling loss that can reduce silicon in steel after appropriate auxiliary material, the spot segregation of favourable minimizing steel. And effectively make the sulfur content of steel reduce, and improve the degree of purity of steel etc., make metallurgical effect better. Wherein in discharge part-structure, adopt the mode of belt wheel case conveyer belt to add auxiliary material, the auxiliary material that can before smelting, needs be added proportionally size is laid on conveyer belt equably, when smelting, realize feeding intake of auxiliary material by controlling conveyer belt rotation, complete electroslag smelting auto feed, simple in structure and make reinforced process continuous uniform, ensure metallurgical effect. Power-control section structure adopts interlock to control, make in smelting process, can control horizontal cantilever slowly declines, make electrode lower end progressively extend into the inner lower position of crystallizer, the movement of electrode causes gradually changing of electric current like this, improve metallurgical effect, in this process, interlock adds auxiliary material step by step simultaneously, has just greatly improved metal smelt effect.
Further, described frame comprises the base plate that is horizontally placed on bottom, level is positioned at the top board at top, support and connection make its monnolithic case become the support of inverted trapezoidal between base plate and top board, top board extends support towards a side of crystallizer and forms elongated end and at elongated end, a belt pulley be set, and top board opposite side arranges another belt pulley.
Frame has simple in structurely like this, supports reliable and stable advantage, and the belt pulley of one end extends frame and arrange the interpolation of convenient auxiliary material.
Further, base plate corner location is also to being arranged with universal wheel. Like this, facilitate mobile universal wheel, frame is pushed into correct position and feeds in raw material.
Further, described top board elongated end bottom has extends the feed plate arranging to front lower place, and feed plate upper surface is just provided with charging spout to conveyer belt. Like this, further ensure reinforced accuracy, can make auxiliary material make an addition to crystallizer medium position, be beneficial to auxiliary material and fully participate in reaction, improved better metallurgical effect.
Further, described horizontal cantilever elevating mechanism comprises described horizontal cantilever, horizontal cantilever link is slidably mounted on column by the vertical slide rail arranging on column, horizontal cantilever elevating mechanism also comprises the lifting motor that is positioned at column bottom, lifting motor output is connected and can drives screw mandrel rotation with being vertically set up in parallel in the screw mandrel of column one side, and screw mandrel upper end and a nut being fixed on horizontal cantilever coordinate formation screw pair.
Like this, adopt feed screw nut sub-control horizontal cantilever to realize lifting, have simple in structurely, control reliably, mobile slowly stable and feature at the uniform velocity can ensure to control effect, improve metallurgical effect.
Further, described interlock controlling organization, comprise the first pull rope and the second pull rope, first pull rope one end is fixed on horizontal cantilever, the other end walk around downwards after the conveyer belt of one end, crystallizer top along conveyer belt lower surface toward away from crystallizer direction extension solderless wrapped connection on conveyer belt, described second pull rope one end is positioned at frame in the face of crystallizer one side and fixes and is connected with a balancing weight downwards, the second pull rope other end upwards walk around one be arranged on frame frame in the face of the directive wheel on crystallizer one side outer wall after, upwards walk around the conveyer belt of one end, crystallizer top and along conveyer belt upper surface toward away from crystallizer direction extension solderless wrapped connection on conveyer belt.
Like this, in the time that horizontal cantilever maintains static, on the second pull rope, the gravity of balancing weight is offseted by the pulling force of the first pull rope by conveyer belt, and conveyer belt maintains static. When in smelting process, when horizontal cantilever moves down, the first pull rope moves down gradually, and the second pull rope draws gradually conveyer belt upper surface and moves toward crystallizer direction under configuration block effect, and then the auxiliary material having laid in advance on conveyer belt is added in crystallizer. Have simple in structurely, it is convenient to control, the interlock effect advantage such as can be guaranteed.
In sum, the present invention has simple in structure, can realize while smelting and automatically add auxiliary material, and it is reliable and stable that auxiliary material adds control procedure, makes the advantages such as metallurgical effect is good.
Brief description of the drawings
Fig. 1 is the structural representation of preferred embodiment for the present invention structure.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is described in further detail.
When concrete enforcement: as shown in Figure 1, a kind of electroslag smelting auxiliary material automatic feeding device, described auxiliary material automatic adding device comprises discharge part-structure and power-control section structure. Wherein, described discharge part-structure comprises the frame 12 that is arranged at crystallizer side, frame 12 upper end edge horizontal directions are provided with a pair of belt pulley 8, and belt pulley upper ring cap is provided with conveyer belt 9, and conveyer belt 9 one end are positioned at crystallizer 14 tops and the other end away from crystallizer 14 direction settings. Like this, when smelting, rotate and realize feeding intake of auxiliary material by controlling conveyer belt, complete electroslag smelting auto feed, simple in structure and make reinforced process continuous uniform, ensure metallurgical effect. Wherein, described power-control section structure comprises horizontal cantilever elevating mechanism and interlock controlling organization, and interlock controlling organization is connected between horizontal cantilever and discharge part-structure and by the lifting interlock of horizontal cantilever and controls discharge part-structure discharge. Like this, in smelting process, can control horizontal cantilever slowly declines, make electrode lower end progressively extend into the inner lower position of crystallizer, the movement of electrode causes gradually changing of electric current like this, improve metallurgical effect, in this process, interlock adds auxiliary material step by step simultaneously, has just greatly improved metal smelt effect. In figure, label 14 represents that overall crystallizer 14, the crystallizer 14 that is stove shape is positioned at a crystallizer mounting groove, label 5 represents to be positioned at the column of crystallizer mounting groove one side, label 4 represents the horizontal cantilever 4 that column 5 tops arrange, and on horizontal cantilever 4, just crystallizer 14 is provided with to the electrode 7 that extends down into crystallizer by terminal clamp.
Wherein, described frame 12 comprises the base plate 10 that is horizontally placed on bottom, level is positioned at the top board 11 at top, support and connection make its monnolithic case become the support of inverted trapezoidal between base plate 10 and top board 11, top board 11 extends support towards a side of crystallizer 14 and forms elongated end and at elongated end, a belt pulley be set, and top board 11 opposite sides arrange another belt pulley. Frame has simple in structurely like this, supports reliable and stable advantage, and the belt pulley of one end extends frame and arrange the interpolation of convenient auxiliary material.
Wherein, base plate 10 corner locations are also to being arranged with universal wheel 13. Like this, facilitate mobile universal wheel, frame is pushed into correct position and feeds in raw material.
Wherein, described top board 11 elongated end bottoms have extends the feed plate 15 arranging to front lower place, and feed plate 15 upper surfaces are just provided with charging spout to conveyer belt. Like this, further ensure reinforced accuracy, can make auxiliary material make an addition to crystallizer medium position, be beneficial to auxiliary material and fully participate in reaction, improved better metallurgical effect.
Wherein, described horizontal cantilever elevating mechanism comprises described horizontal cantilever 4, horizontal cantilever link is slidably mounted on column 5 by the vertical slide rail arranging on column 5, horizontal cantilever elevating mechanism also comprises the lifting motor 2 on the base plate 1 that is positioned at column bottom, lifting motor output is connected and can drives screw mandrel 3 to rotate with being vertically set up in parallel in the screw mandrel 3 of column one side, and screw mandrel 3 upper ends and a nut being fixed on horizontal cantilever 4 coordinate formation screw pair. Like this, adopt feed screw nut sub-control horizontal cantilever to realize lifting, have simple in structurely, control reliably, mobile slowly stable and feature at the uniform velocity can ensure to control effect, improve metallurgical effect.
Wherein, described interlock controlling organization, comprise the first pull rope 6 and the second pull rope 18, first pull rope 6 one end are fixed on horizontal cantilever 4, the other end is walked around downwards after the conveyer belt of crystallizer 14 one end, top along conveyer belt 9 lower surfaces toward extending solderless wrapped connections on conveyer belt 9 away from crystallizer 14 directions, described second pull rope 18 one end are positioned at frame in the face of crystallizer 14 1 sides and fix and are connected with a balancing weight 16 downwards, second pull rope 18 other ends upwards walk around one be arranged on frame frame in the face of the directive wheel 17 on crystallizer one side outer wall after, upwards walk around the conveyer belt of crystallizer 14 one end, top and along conveyer belt 14 upper surfaces toward away from crystallizer direction extend solderless wrapped connection on conveyer belt 14. like this, in the time that horizontal cantilever maintains static, on the second pull rope, the gravity of balancing weight is offseted by the pulling force of the first pull rope by conveyer belt, and conveyer belt maintains static. when in smelting process, when horizontal cantilever moves down, the first pull rope moves down gradually, and the second pull rope draws gradually conveyer belt upper surface and moves toward crystallizer direction under configuration block effect, and then the auxiliary material having laid in advance on conveyer belt is added in crystallizer. have simple in structurely, it is convenient to control, the interlock effect advantage such as can be guaranteed.
When the said equipment work, first metal electroslag is added to crystallizer, electrode is inserted in crystallizer and contacted with metal electroslag top, and the first proportionally size of auxiliary material that needs are added is laid on conveyer belt equably, frame is pushed to charging spout lower end and exports just to crystallizer center; Then starting electrode starts to smelt, after a period of time, start lifting motor work, evenly move down lentamente by the moving horizontal cantilever of screw nut driven subband, and then make conveyer belt lose the tractive force of the first pull rope, under balancing weight Action of Gravity Field, the second pull rope lower end moves down, and then conveyer belt upper surface is at the uniform velocity moved toward crystallizer direction, material on conveyer belt slides into crystallizer middle part by the charging spout on feed plate continuously lentamente, until horizontal cantilever downward storke is covered, complete auxiliary material and add action. When smelting, horizontal cantilever can repeat upper and lower stroke, and conveyer belt one end continues to add auxiliary material by artificial, can be at the each continuous adding of realizing auxiliary material when descending of horizontal cantilever. Like this, when smelting, rotate and realize feeding intake of auxiliary material by controlling conveyer belt, complete electroslag smelting auto feed, simple in structure and make reinforced process continuous uniform, ensure metallurgical effect.
Wherein, while specifically enforcement, it is horizontal cantilever Bottom Runby that two directive wheel spacing X are more than or equal to primary smelting stroke Y(), balancing weight can be more than or equal to above-mentioned Y by descending stroke Z; Hang the frictional force f that weight gravity G is greater than conveyer belt and directive wheel. The above-mentioned course of work can be completed smoothly.
The present invention can be when smelting the automatic interpolation of the auxiliary material such as aluminum shot, add the scaling loss that can reduce silicon in steel after appropriate auxiliary material, the spot segregation of favourable minimizing steel. And effectively make the sulfur content of steel reduce, and improve the degree of purity of steel etc., make metallurgical effect better. Compared with the existing technology, the design can repeatedly recycle with the lifting of cantilever, solves and has realized the reinforced automation of auxiliary material in electroslag smelting, effectively improves electroslag smelting automation, have simple and reasonable, save the energy, simple to operate, safe and reliable, easy maintenance, the advantages such as maintenance cost is low, long service life, increase substantially product qualified rate and reach 98%. Be specially adapted to be widely used in electroslag smelting industry.
Claims (4)
1. an electroslag smelting auxiliary material automatic feeding device, is characterized in that, comprises discharge part-structure and power-control section structure; Described discharge part-structure comprises the frame that is arranged at crystallizer side, and frame upper end edge horizontal direction is provided with a pair of belt pulley, and belt pulley upper ring cap is provided with conveyer belt, and conveyer belt one end is positioned at crystallizer top and the other end away from the setting of crystallizer direction; Described power-control section structure comprises horizontal cantilever elevating mechanism and interlock controlling organization, and interlock controlling organization is connected between horizontal cantilever and discharge part-structure and by the lifting interlock of horizontal cantilever and controls discharge part-structure discharge;
Described horizontal cantilever elevating mechanism comprises described horizontal cantilever, horizontal cantilever link is slidably mounted on column by the vertical slide rail arranging on column, horizontal cantilever elevating mechanism also comprises the lifting motor that is positioned at column bottom, lifting motor output is connected and can drives screw mandrel rotation with being vertically set up in parallel in the screw mandrel of column one side, and screw mandrel upper end and a nut being fixed on horizontal cantilever coordinate formation screw pair;
Described interlock controlling organization, comprise the first pull rope and the second pull rope, first pull rope one end is fixed on horizontal cantilever, the other end walk around downwards after the conveyer belt of one end, crystallizer top along conveyer belt lower surface toward away from crystallizer direction extension solderless wrapped connection on conveyer belt, described second pull rope one end is positioned at frame in the face of crystallizer one side and fixes and is connected with a balancing weight downwards, the second pull rope other end upwards walk around one be arranged on frame in the face of the directive wheel on crystallizer one side outer wall after, upwards walk around the conveyer belt of one end, crystallizer top and along conveyer belt upper surface toward away from crystallizer direction extension solderless wrapped connection on conveyer belt.
2. electroslag smelting auxiliary material automatic feeding device as claimed in claim 1, it is characterized in that, described frame comprises the base plate that is horizontally placed on bottom, level is positioned at the top board at top, support and connection make its monnolithic case become the support of inverted trapezoidal between base plate and top board, top board extends support towards a side of crystallizer and forms elongated end and at elongated end, a belt pulley be set, and top board opposite side arranges another belt pulley.
3. electroslag smelting auxiliary material automatic feeding device as claimed in claim 2, is characterized in that, base plate corner location is also to being arranged with universal wheel.
4. electroslag smelting auxiliary material automatic feeding device as claimed in claim 2, is characterized in that, described top board elongated end bottom has extends the feed plate arranging to front lower place, and feed plate upper surface is just provided with charging spout to conveyer belt.
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| CN201410596151.8A CN104313341B (en) | 2014-10-30 | 2014-10-30 | A kind of electroslag smelting auxiliary material automatic feeding device |
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| CN201410596151.8A CN104313341B (en) | 2014-10-30 | 2014-10-30 | A kind of electroslag smelting auxiliary material automatic feeding device |
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| CN104313341B true CN104313341B (en) | 2016-05-25 |
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| CN106435092B (en) * | 2016-11-02 | 2018-02-13 | 四川六合锻造股份有限公司 | A kind of Adding Way of esr process aluminium powder |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU4471679A (en) * | 1978-03-01 | 1979-09-06 | De Beers Industrial Diamond Division (Proprietary) Limited | Feeding and sorting particulate material |
| CN201289311Y (en) * | 2008-08-29 | 2009-08-12 | 郑州玉发耐火材料有限公司 | Automatic enclosed feeding system for electric arc furnace |
| CN103014365A (en) * | 2012-12-08 | 2013-04-03 | 中兴能源装备股份有限公司 | Automatic feeding machine special for electroslag furnace |
-
2014
- 2014-10-30 CN CN201410596151.8A patent/CN104313341B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU4471679A (en) * | 1978-03-01 | 1979-09-06 | De Beers Industrial Diamond Division (Proprietary) Limited | Feeding and sorting particulate material |
| CN201289311Y (en) * | 2008-08-29 | 2009-08-12 | 郑州玉发耐火材料有限公司 | Automatic enclosed feeding system for electric arc furnace |
| CN103014365A (en) * | 2012-12-08 | 2013-04-03 | 中兴能源装备股份有限公司 | Automatic feeding machine special for electroslag furnace |
Non-Patent Citations (1)
| Title |
|---|
| 电渣重熔炉及其控制系统;范飞翔等;《工业加热》;20020830(第04期);第53页第4段 * |
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