CN103866089A - Vacuum tank alloy feed inlet pre-constructing technology - Google Patents
Vacuum tank alloy feed inlet pre-constructing technology Download PDFInfo
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- CN103866089A CN103866089A CN201210537529.8A CN201210537529A CN103866089A CN 103866089 A CN103866089 A CN 103866089A CN 201210537529 A CN201210537529 A CN 201210537529A CN 103866089 A CN103866089 A CN 103866089A
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- processing mold
- working lining
- refractory brick
- inclined plane
- stones
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Abstract
The invention provides a vacuum tank alloy feed inlet pre-constructing technology. Through the calculation in the early stage and the application of a slope processing mould, fire-proof bricks can be prepared in advance, and then the prepared fire-proof bricks are built on the position of a work layer so as to form a work layer. Through the vacuum tank alloy feed inlet pre-constructing technology, the building time of work layer in the alloy feed inlet is reduced, the construction quality is improved, and the work environment for workers is improved too.
Description
Technical field
The present invention relates to the pre-brick-building art of a kind of vacuum tank material alloying mouth.
Background technology
RH vacuum tank is liquid steel refining main equipment, and this apparatus body is made up of upper slot, lower channel, hot-bending pipe and soaking tub four parts.Material alloying mouth is the key position of whole upper slot, stable the stable of upper slot that determined at this position, and it is related to the stable of refining main equipment RH vacuum tank.The upper end of material alloying mouth in vacuum tank, when maintenance, operating personnel must enter in vacuum tank, therefore temperature must naturally cool to the temperature that people can bear in groove, and the refractory brick of material alloying mouth needs processing limit, online limit to build by laying bricks or stones, only build by laying bricks or stones just must be with 22 hours for the refractory brick on-line machining of material alloying mouth, the maintenance duration of whole material alloying mouth, grow 30 hours servicing time than other position of vacuum tank.
Material alloying mouth to build the duration by laying bricks or stones so long, its basic reason is that every block of refractory brick need to be measured at the scene, processes, build by laying bricks or stones, due to the objective operating condition restriction in scene, build measurement point and refractory brick processing stand by laying bricks or stones and need the transmission time of 3 minutes, scene is carried out field measurement line with slide calliper rule to the refractory brick of required processing also needs nearly 2 minutes, and the precision of in-situ processing is not high, processes a refractory brick and need 2 minutes consuming time.80 polylith material alloying mouths are built the required long-time processing of the refractory brick of use by laying bricks or stones, have caused working lining to build procedures by laying bricks or stones long in time limit.
Moreover, the on-line maintenance of material alloying mouth, for the employee of working district, labour intensity is high, and operating environment is poor, and control of construction quality difficulty is large.Material alloying mouth is the entrance that adds of smelting molten steel process interalloy material, is subject to washing away of alloy material, and the quality of the quality control of material alloying mouth is directly connected to the work-ing life of material alloying mouth.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide the pre-brick-building art of a kind of vacuum tank material alloying mouth, build for solving prior art vacuum tank material alloying mouth the problem that working procedure duration is long, operating environment is severe, control of construction quality difficulty is large by laying bricks or stones.
For achieving the above object and other relevant objects, the invention provides the pre-brick-building art of a kind of vacuum tank material alloying mouth, comprise the following steps:
1) according to the specification of the working lining of material alloying mouth, calculate specification and the quantity of building required refractory brick by laying bricks or stones, process refractory brick;
2) make oblique surface machining mould, oblique surface machining mould is provided with internal space, and the internal surface of internal space is corresponding with the outside surface of working lining, and the end face of oblique surface machining mould is identical with the angle of inclination of the end face of working lining;
3) refractory brick is built in advance in the internal space of oblique surface machining mould by laying bricks or stones to the internal surface laminating of the internal space of the refractory brick of building by laying bricks or stones in advance and oblique surface machining mould;
4), on the refractory brick of outstanding oblique surface machining die face, along the end face line of oblique surface machining mould, the refractory brick of line is removed to the part of outstanding oblique surface machining die face along the line of being drawn;
5) position at working lining by the laying fireproof bricks machining, forms working lining.
Preferably, step 3) also comprises and will build in advance refractory brick in the internal space of oblique surface machining mould by laying bricks or stones by building serial number by laying bricks or stones; Refractory brick in step 5) by number order is built the position at working lining by laying bricks or stones.
Preferably, step 2) in oblique surface machining mould be divided into ramp processing mold and lower inclined plane processing mold, ramp processing mold, lower inclined plane processing mold are vertically fixed on respectively on work top, the upper surface of ramp processing mold is identical with the angle of inclination of the upper surface of working lining, and the upper surface of lower inclined plane processing mold is identical with the angle of inclination of the lower surface of working lining.
Further preferably, ramp processing mold comprises ramp processing mold outer shroud and is enclosed within ring in the ramp processing mold in ramp processing mold outer shroud, the internal diameter of ramp processing mold outer shroud is identical with the external diameter of working lining, and in ramp processing mold, the external diameter of ring is identical with the internal diameter of working lining.
Further preferably, lower inclined plane processing mold comprises lower inclined plane processing mold outer shroud and is enclosed within ring in the lower inclined plane processing mold in lower inclined plane processing mold outer shroud, the internal diameter of lower inclined plane processing mold outer shroud is identical with the external diameter of working lining, and in lower inclined plane processing mold, the external diameter of ring is identical with the internal diameter of working lining.
As mentioned above, the pre-brick-building art of vacuum tank material alloying mouth of the present invention, has following beneficial effect:
The pre-brick-building art of this vacuum tank material alloying mouth, by calculating and use oblique surface machining mould early stage, pre-processed refractory brick, reduces the activity duration of building by laying bricks or stones of the working lining of material alloying mouth, and construction quality improves, and workmen's Working environment improves.
Accompanying drawing explanation
Fig. 1 is shown as the structural representation that needs the material alloying mouth of building by laying bricks or stones in the pre-brick-building art of vacuum tank material alloying mouth of the present invention.
Fig. 2 is shown as a kind of A-A of structure of the material alloying mouth shown in Fig. 1 to diagrammatic cross-section.
Fig. 3 is shown as the A-A of another kind of structure of the material alloying mouth shown in Fig. 1 to diagrammatic cross-section.
Fig. 4 is shown as the structural representation of the ramp processing mold in the pre-brick-building art of vacuum tank material alloying mouth of the present invention.
Fig. 5 is shown as the structural representation of the lower inclined plane processing mold in the pre-brick-building art of vacuum tank material alloying mouth of the present invention.
Element numbers explanation
1 working lining
11 upper surfaces
12 lower surfaces
2 permanent layer
3 refractory brick
41 ramp processing molds
411 ramp processing mold outer shrouds
Ring in 412 ramp processing molds
42 lower inclined plane processing molds
421 lower inclined plane processing mold outer shrouds
Ring in 422 lower inclined plane processing molds
43 ramp processing mold upper surfaces
44 lower inclined plane processing mold upper surfaces
45 internal spaces
Embodiment
Below, by specific specific examples explanation embodiments of the present invention, those skilled in the art can understand other advantages of the present invention and effect easily by the disclosed content of this specification sheets.The present invention can also be implemented or be applied by other different embodiment, and the every details in this specification sheets also can be based on different viewpoints and application, carries out various modifications or change not deviating under spirit of the present invention.
Refer to Fig. 1 to Fig. 5.It should be noted that, the diagram providing in the present embodiment only illustrates basic conception of the present invention in a schematic way, satisfy and only show with assembly relevant in the present invention in graphic but not component count, shape and size drafting while implementing according to reality, when its actual enforcement, kenel, quantity and the ratio of each assembly can be a kind of random change, and its assembly layout kenel also may be more complicated.
As shown in Figure 1 to Figure 3, the material alloying mouth of vacuum tank comprises a columnar working lining 1, and upper surface 11 and the lower surface 12 of working lining 1 are inclined-plane, and working lining 1 is built by laying bricks or stones and formed by refractory brick 3; The outside of working lining 1 is provided with permanent layer 2, and the internal surface of permanent layer 2 coordinates with the outside surface of working lining 1.
The invention provides the pre-brick-building art of a kind of vacuum tank material alloying mouth, comprise the following steps:
1) according to the specification of the working lining 1 of material alloying mouth, calculate specification and the quantity of building required refractory brick 3 by laying bricks or stones, process refractory brick 3;
2) make oblique surface machining mould, oblique surface machining mould is provided with internal space 45, and the internal surface of internal space 45 is corresponding with the outside surface of working lining 1, and the end face of oblique surface machining mould is identical with the angle of inclination of the end face of working lining 1;
3) build in advance the internal surface laminating of the refractory brick 3 of building by laying bricks or stones in advance and the internal space 45 of oblique surface machining mould by laying bricks or stones by interior in the internal space 45 of oblique surface machining mould refractory brick 3;
4), on the refractory brick 3 of outstanding oblique surface machining die face, along the end face line of oblique surface machining mould, the refractory brick of line 3 is removed to the part of outstanding oblique surface machining die face along the line of being drawn;
5) refractory brick machining 3 is built by laying bricks or stones in the position of working lining 1, form working lining 1.
Wherein, step 3) also comprises and will build in advance refractory brick 3 in the internal space 45 of oblique surface machining mould by laying bricks or stones by building serial number by laying bricks or stones; Refractory brick 3 in step 5) by number order is built the position at working lining 1 by laying bricks or stones.
Wherein, step 2) in oblique surface machining mould be divided into ramp processing mold 41 and lower inclined plane processing mold 42, ramp processing mold 41, lower inclined plane processing mold 42 are vertically fixed on respectively on work top, ramp processing mold upper surface 43 is identical with the angle of inclination of the upper surface 11 of working lining 1, and lower inclined plane processing mold upper surface 44 is identical with the angle of inclination of the lower surface 12 of working lining 1.
As shown in Figure 4, ramp processing mold 41 comprises ramp processing mold outer shroud 411 and is enclosed within ring 412 in the ramp processing mold in ramp processing mold outer shroud 411, the internal diameter of ramp processing mold outer shroud 411 is identical with the external diameter of working lining 1, and in ramp processing mold, the external diameter of ring 412 is identical with the internal diameter of working lining 1.
As shown in Figure 5, lower inclined plane processing mold 42 comprises lower inclined plane processing mold outer shroud 421 and is enclosed within ring 422 in the lower inclined plane processing mold in lower inclined plane processing mold outer shroud 421, the internal diameter of lower inclined plane processing mold outer shroud 421 is identical with the external diameter of working lining 1, and in lower inclined plane processing mold, the external diameter of ring 422 is identical with the internal diameter of working lining 1.
The quantity of the refractory brick 3 that as shown in Figures 2 and 3, the working lining 1 in Fig. 3 uses is less than the quantity of the refractory brick 3 that the working lining 1 in Fig. 2 uses.The minimizing of the quantity of refractory brick 3, also can improve the efficiency that material alloying mouth is built by laying bricks or stones to a certain extent, reduces the time that material alloying mouth is built by laying bricks or stones.
The refractory brick 3 of material alloying mouth can be in the work spare time, by calculating and use oblique surface machining mould early stage, carry out preprocessing, then directly refractory brick 3 good preprocessing is directly built by laying bricks or stones at material alloying mouth in the time that vacuum tank is repaired, make this build operation by laying bricks or stones and construct complete with the shortest time.
Simultaneously, refractory brick 3 is by preprocessing, can make the size of refractory brick 3 more accurate, effectively avoid size deviation, eliminate the mass defect of the bonding surface of the refractory brick 3 of working lining 1, thereby the construction precision that has improved the refractory brick 3 of working lining 1, construction quality has had further lifting, has guaranteed the integral construction quality of whole project under construction.Due to the further lifting of material alloying mouth construction quality, the use stove number of this working lining 1 is improved, and the frequency of maintenance of material alloying mouth reduces, thereby has reduced the maintenance cost of material alloying mouth.
The preprocessing of the refractory brick 3 of material alloying mouth is carried out in off-line repair position, off-line operation place spaciousness, operating environment temperature is low, noise is little, dust is few, and can reduce transmission time and transmission action, reduces workmen's quantity, thereby the labour intensity that reduces operating personnel, has improved operating efficiency.
A vacuum tank take Baosteel on February 27th, 2012 keeps in repair as example, and through the preprocessing to refractory brick, the whole vacuum tank maintenance duration is 150 hours, than plan time 192 hours, shortens 42 hours, and vacuum tank dipping pipe pipe finally reaches 148 stoves age.The whole maintenance period, shut down in the original plan the replacing operation of carrying out soaking tub for 16 hours and cancel because of the significantly shortening of duration, retrieve refining and produced because shutting down the massive losses causing for 16 hours.
The processing that becomes more meticulous of refractory brick 3 is built by laying bricks or stones and has been guaranteed the stable of material alloying mouth performance, vacuum tank from maintenance to co-processing molten steel 610 stoves on April 25, do not carry out during this time the maintenance of material alloying mouth, thereby reduce the number of times of building by laying bricks or stones of material alloying mouth, reduce maintenance cost, reduce employee's labour intensity, reduced vacuum tank operating risk.
In sum, the pre-brick-building art of vacuum tank material alloying mouth of the present invention, by calculating and use oblique surface machining mould early stage, pre-processed refractory brick, the activity duration of building by laying bricks or stones of the working lining of material alloying mouth is reduced, and construction quality improves, and workmen's Working environment improves.So the present invention has effectively overcome various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all can, under spirit of the present invention and category, modify or change above-described embodiment.Therefore, such as in affiliated technical field, have and conventionally know that the knowledgeable, not departing from all equivalence modifications that complete under disclosed spirit and technological thought or changing, must be contained by claim of the present invention.
Claims (5)
1. the pre-brick-building art of vacuum tank material alloying mouth, is characterized in that comprising the following steps:
1) according to the specification of the working lining of material alloying mouth (1), calculate specification and the quantity of building required refractory brick (3) by laying bricks or stones, process described refractory brick (3);
2) make oblique surface machining mould, described oblique surface machining mould is provided with internal space (45), the internal surface of described internal space (45) is corresponding with the outside surface of described working lining (1), and the end face of described oblique surface machining mould is identical with the angle of inclination of the end face of described working lining (1);
3) described refractory brick (3) is built by laying bricks or stones in advance in the internal space (45) of described oblique surface machining mould, the refractory brick (3) of building by laying bricks or stones is in advance fitted with the internal surface of the internal space (45) of described oblique surface machining mould;
4) upper at the refractory brick (3) of outstanding described oblique surface machining die face, along the end face line of described oblique surface machining mould, the refractory brick of described line (3) is removed to the part of outstanding described oblique surface machining die face along the line of being drawn;
5) refractory brick machining (3) is built by laying bricks or stones in the position of described working lining (1), form described working lining (1).
2. the pre-brick-building art of vacuum tank material alloying mouth according to claim 1, is characterized in that: described step 3) also comprises and will build in advance refractory brick (3) in the internal space (45) of described oblique surface machining mould by laying bricks or stones by building serial number by laying bricks or stones; Refractory brick (3) in described step 5) by number order is built the position in described working lining (1) by laying bricks or stones.
3. the pre-brick-building art of vacuum tank material alloying mouth according to claim 1, it is characterized in that: step 2) in oblique surface machining mould be divided into ramp processing mold (41) and lower inclined plane processing mold (42), described ramp processing mold (41), lower inclined plane processing mold (42) is vertically fixed on respectively on work top, the upper surface (43) of described ramp processing mold (41) is identical with the angle of inclination of the upper surface (11) of described working lining (1), the upper surface (44) of described lower inclined plane processing mold (42) is identical with the angle of inclination of the lower surface (12) of described working lining (1).
4. the pre-brick-building art of vacuum tank material alloying mouth according to claim 3, it is characterized in that: described ramp processing mold (41) comprises ramp processing mold outer shroud (411) and is enclosed within ring (412) in the ramp processing mold in described ramp processing mold outer shroud (411), the internal diameter of described ramp processing mold outer shroud (411) is identical with the external diameter of described working lining (1), and in described ramp processing mold, the external diameter of ring (412) is identical with the internal diameter of described working lining (1).
5. the pre-brick-building art of vacuum tank material alloying mouth according to claim 3, it is characterized in that: described lower inclined plane processing mold (42) comprises lower inclined plane processing mold outer shroud (421) and is enclosed within ring (422) in the lower inclined plane processing mold in described lower inclined plane processing mold outer shroud (421), the internal diameter of described lower inclined plane processing mold outer shroud (421) is identical with the external diameter of described working lining (1), and in described lower inclined plane processing mold, the external diameter of ring (422) is identical with the internal diameter of described working lining (1).
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| CN201210537529.8A CN103866089B (en) | 2012-12-12 | 2012-12-12 | The pre-brick-building art of vacuum tank material alloying mouth |
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| CN201210537529.8A CN103866089B (en) | 2012-12-12 | 2012-12-12 | The pre-brick-building art of vacuum tank material alloying mouth |
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| CN103866089A true CN103866089A (en) | 2014-06-18 |
| CN103866089B CN103866089B (en) | 2015-08-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113976870A (en) * | 2021-10-21 | 2022-01-28 | 武汉钢铁集团耐火材料有限责任公司 | Technological method for prebuilt steel ladle working lining refractory bricks |
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| JPH083626A (en) * | 1994-06-13 | 1996-01-09 | Shinagawa Refract Co Ltd | Brick masonry structure of side wall part of lower chamber for rh degassing equipment |
| JP2000178636A (en) * | 1998-12-10 | 2000-06-27 | Nkk Corp | Production of clean steel in rh vacuum-degassing apparatus |
| CN2905814Y (en) * | 2005-12-07 | 2007-05-30 | 上海宝钢冶金建设公司 | Feeding protection structure of vacuum groove |
| CN201210010Y (en) * | 2008-04-16 | 2009-03-18 | 中钢集团耐火材料有限公司 | Fire resistant assembled bricks of alloy charging part of vacuum refining furnace |
| CN202415608U (en) * | 2011-12-20 | 2012-09-05 | 鞍钢股份有限公司 | Alloy chute of vacuum circulation degassing furnace |
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2012
- 2012-12-12 CN CN201210537529.8A patent/CN103866089B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH083626A (en) * | 1994-06-13 | 1996-01-09 | Shinagawa Refract Co Ltd | Brick masonry structure of side wall part of lower chamber for rh degassing equipment |
| JP2000178636A (en) * | 1998-12-10 | 2000-06-27 | Nkk Corp | Production of clean steel in rh vacuum-degassing apparatus |
| CN2905814Y (en) * | 2005-12-07 | 2007-05-30 | 上海宝钢冶金建设公司 | Feeding protection structure of vacuum groove |
| CN201210010Y (en) * | 2008-04-16 | 2009-03-18 | 中钢集团耐火材料有限公司 | Fire resistant assembled bricks of alloy charging part of vacuum refining furnace |
| CN202415608U (en) * | 2011-12-20 | 2012-09-05 | 鞍钢股份有限公司 | Alloy chute of vacuum circulation degassing furnace |
Non-Patent Citations (1)
| Title |
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| 金鹏等: "RH精炼炉合金加料口用耐火组合砖组合形式的优化", 《耐火材料》, no. 1, 31 December 2008 (2008-12-31), pages 69 - 71 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113976870A (en) * | 2021-10-21 | 2022-01-28 | 武汉钢铁集团耐火材料有限责任公司 | Technological method for prebuilt steel ladle working lining refractory bricks |
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| CN103866089B (en) | 2015-08-26 |
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