CN201423442Y - Compound safety ladle lining - Google Patents
Compound safety ladle lining Download PDFInfo
- Publication number
- CN201423442Y CN201423442Y CN2009200136044U CN200920013604U CN201423442Y CN 201423442 Y CN201423442 Y CN 201423442Y CN 2009200136044 U CN2009200136044 U CN 2009200136044U CN 200920013604 U CN200920013604 U CN 200920013604U CN 201423442 Y CN201423442 Y CN 201423442Y
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- CN
- China
- Prior art keywords
- ladle
- layer
- lining
- permanent layer
- brick
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The utility model relates to a compound safety ladle lining, comprising a ladle lining body, a compound pad of the ladle lining body, a bag opening pad of the liquid iron bag. The utility model is characterized in that the compound pad of the pot body consists of a light warm-keeping permanent layer tightly pasted on the pot body as the outer layer, a casting material permanent layer, a Al2O 3-Sic-C brick, i.e. an aluminum carborundum carbon brick workinglayer; the compound pad at the bottom of the liquid iron bag pot body consists of the warm-keeping layer as the lowest layer, the casting material permanent layer, a horizontal bonding aluminum carborundum carbon brick, and a vertical aluminum carborundum carbon brick working layer; and the bag opening of the ladle lining is made of high-aluminum casting material. The liquid iron bag pad stops the liquid iron from permeating, stops the potential safety hazard, and prolongs the service life. The utility model has the advantages of hyperpyrexia stability, washing out resistance, and corroding resistance, no pasting with dregs, alkali dregs resistance and acid dregs resistance, low heat conduction coefficient, energy conservation, simple construction, short constructing time and long cycle ration of the liquid iron bag.
Description
Technical field
The utility model relates to molten iron cylinder-packing technical field, particularly a kind of composite type safety molten iron cylinder-packing of allomeric function type.
Background technology:
Ladle is the container of shipment molten iron, and cylinder-packing is subjected to high temperature, thermal shock, the chemical erosion effect of mechanical wear and slag iron.In recent years, along with the molten iron preliminary treatment is carried out, make that the condition of work of ladle is harsh more in hot-metal bottle, molten iron temperature had significantly raising relatively in the past, can reach 1500 ℃, had increased the weight of the erosion of jar lining greatly.The desulfurization inorganic agent basicity that adds in the molten iron preprocessing process changes greatly, makes the erosion of molten iron cylinder-packing serious, adds to stir washing away and temperature fluctuation that the batch (-type) operation is caused of molten iron, and the ladle liner is jar end and slag lining damage aggravation particularly.Therefore, the liner of ladle should select to have high strength, anti-thermal shock, heat shock resistance, anti-strip and not only can the acid-resisting slag but also high-quality refractory material that can the alkali resistance slag.Present domestic ladle lining design roughly has two kinds: a kind of is monolithic castable; A kind of is to use Al
2O
3-SiC-C brick the lining of working, permanent liner is used insulating brick.Al
2O
3-SiC-C brick is the reasonable ladle lining refractory material of present high-temperature behavior, but must solve Al
2O
3-SiC-C brick is built by laying bricks or stones in construction and is oozed the iron problem at the bottom of the brickwork joint that is easy to occur in the use oozes iron problem, particularly ladle, improves its usage safety performance, and this is the problem that domestic and international each big steel mill need to study.
There are several big defectives in the monolithic castable ladle lining: the very difficult increase labor strength of disintegrating after, using; Two, form easily indiscoverable crackle in the use procedure, easily ooze iron from cracks, make the operating personnel of steel mill be difficult to the naked eye judge and cause security incident; Be difficult to when three, local damage is serious repair, must health toast after the repairing, the repairing cycle is long; Four, because moisture in the castable, need at normal temperatures health, thus very difficult in the northern area construction, and easily take place because the bag accident that collapses that baking not exclusively causes.Five, owing to be whole knotting, must in work progress, guarantee the uniformity of tiing a knot, so the close inequality of the body that exists the artificial origin to cause, Yi Facheng peels off, crackle, hole cause the iron accident of oozing.Six, brick water relatively that material feeding is close at body, all superior on the intensity, uniformity, use the back life-span higher, and brick is easy to repair.Particularly the pot bottom position is subjected to the high-order fall impact of molten iron, and the intensity of castable is lower, so the pot bottom position is fallen material easily, needs in the use procedure to stop production and repairs, and causes turn around time long.Seven, monolithic castable needs disintegration, knotting, health, baking draining, and the production cycle needs to be unfavorable for more than 15 days steel mill's fast pace turnover production.
Existing another kind of Al
2O
3-SiC-C brick ladle lining, permanent layer is used insulating brick.Because what permanent liner was used also is brick; permanent lining brick can be owing to build the dimensional tolerance of personnel's masonry technology and brick itself by laying bricks or stones in building process; reasons such as the thin and thick uniformity when clay is smeared cause permanent liner to have some slits; and the viscosity of molten iron very lazy flow is extremely strong; when working lining occurred oozing iron, the protective layer behind working lining (permanent layer) serious leakage iron accident will occur as the slit occurring.Al is used in the ladle lining pot bottom position that has
2O
3-SiC-C brick also can exist builds the brickwork joint problem by laying bricks or stones, is subjected to strong impact and is pounded into molten iron by the brickwork joint position easily later and cause Lou iron accident at the bottom of tank.Permanent layer uses the one layer of heat preservation brick can only use a tank just to pull down age in design in addition, can not reuse and cause cost higher, the wasting of resources.
Along with the development of steel-smelting technology, each big ironworks requires more and more higher in security performance, low cost, the short frequently fast production cycle of refractory material both at home and abroad.Particularly the security performance of the molten iron cylinder-packing of the mobile extremely strong molten iron of splendid attire and high life are gone up and require highlyer, solving ladle, to leak the iron accident be a very big difficult problem.
Summary of the invention:
The purpose of this utility model provides a kind of have safe application performance, heat-insulating property, the low composite type safety molten iron cylinder-packing of ton iron cost.
The purpose of this utility model realizes by following technical proposals.
Composite type safety molten iron cylinder-packing of the present utility model comprises the ladle tank body, the compound lining of ladle tank body, and compound lining at the bottom of the ladle jar, ladle bag mouth lining is characterized in that:
1) described ladle tank body composite lining is by the outer light thermal-insulation permanent layer of being close to tank body, the castable permanent layer that combines of outer insulation permanent layer therewith, the therewith Al that combines of castable permanent layer
2O
3-SiC-C brick is that the aluminum-silicon carbide brick working lining forms,
2) composite lining is located at this castable permanent layer above orlop light thermal-insulation permanent layer by undermost light thermal-insulation permanent layer at the bottom of the described ladle tank, is located at this flat block Al above castable permanent layer
2O
3-SiC-C aluminum-silicon carbide brick layer and be located at this flat Al of block
2O
3Laid on end Al above the-SiC-C aluminum-silicon carbide brick layer
2O
3-SiC-C aluminum-silicon carbide brick working lining forms.
3) described ladle bag mouth lining is high alumina castable.
Composite lining Al at the bottom of the described ladle tank
2O
3Also be provided with high-strength aluminum castable protective layer above the-SiC-C aluminum-silicon carbide brick working lining.
Described ladle is close to the outer light thermal-insulation permanent layer of tank body and is built by laying bricks or stones by insulating brick with orlop light thermal-insulation permanent layer.
Described Al
2O
3-SiC-C aluminum-silicon carbide brick is the molded article of compression moulding.
Characteristics of the present utility model are:
1) this design is particularly conducive to and improves security performance and life-span at the bottom of the tank, is subjected to molten iron to impact position at the bottom of the very severe tank, is subjected to insulating brick permanent layer, castable permanent layer, the flat Al of block
2O
3-SiC-C aluminum-silicon carbide brick, laid on end Al
2O
3-SiC-C aluminum-silicon carbide brick working lining, five layers of protection of high-strength castable can reach more than 1000 stoves with the life-span at the bottom of the tank of other ladle lining condition of equivalent thickness, need not repair, and saved ladle maintenance time, and security performance is high.And former ladle pot bottom position is minimum when need repairing once at most three times, and is not only dangerous but also increase the ladle maintenance construction time, is unfavorable for ironworks fast pace production.Also be particularly conducive to the phenomenon workman at the bottom of the multi decker cage and judge the residual brick thickness in ladle bottom, when residual thickness, can in time stop using, guarantee security.
2) use the permanent layer insulating brick
Be close to the whole light-weight insulating brick that uses of involucrum, play insulation effect and the anti-molten iron osmosis of last one deck, because there is the disintegration be beneficial to after the use in insulating brick, only need several hrs just can all disintegrate and finish, and the integrated poured material disintegration of ladle in the past needs several days time sometimes in addition.
3) use permanent layer to water material feeding
Al different from the past
2O
3-SiC-C aluminum-silicon carbide brick ladle lining, permanent liner is only used the one layer of heat preservation brick.The design's advantage is permanent layer insulating brick one deck permanent layer castable of having tied a knot again outward, purpose be for the globality of utilizing castable at the insulating brick that brickwork joint occurs easily and Al
2O
3Form a security mask between the-SiC-C aluminum-silicon carbide brick, the effectively generation of anti-leak-stopping iron accident, security performance is very high.And this compound permanent liner can be reused 3 jars more than the labour, saves resource, reduces ton iron cost.
4) use Al
2O
3-SiC-C aluminum-silicon carbide brick Al
2O
3The production technology particularity of the compression moulding of-SiC-C brick has determined Al
2O
3-SiC-C aluminum-silicon carbide brick strength ratio castable is big, and shock resistance and anti-etch performance are stronger, and the whole cylinder-packing uniformity behind the aluminum silicon carbide carbon brick masonry is stronger, also is conducive to the use state that the ironworks field worker is judged tank in security.Al on form of construction work
2O
3-SiC-C aluminum-silicon carbide brick is the molded article easy construction, unpacks easily and moisture-free stoving time weak point, improves the hot-metal bottle turnover frequency.
5) high-strength castable is used at the bag end:
Al is adopted at the bag end
2O
3-SiC-C aluminum-silicon carbide brick compares castable and casting preformed block, and the body of brick is close greatly, big, the anti-molten iron impact of intensity is extremely strong, improves the service life of wrapping the end.But there is the slit easily in brick in building process, so add again one deck high-strength castable outside bag end brick, the Al that may occur again in the protective layer while that increases the anti-molten iron impact of one deck
2O
3-SiC-C aluminum silicon carbide carbon brickwork joint protects, and more effectively prevents the infiltration of molten iron.
The utility model solves existing Al
2O
3-SiC-C aluminum-silicon carbide brick working lining ooze iron and the permanent layer brickwork joint oozes the iron problem, guaranteed the security performance used, also solved existing integrated poured ladle crackle, peel off the long construction period that is difficult in use observing and tiing a knot, be unfavorable for winter construction, the problem such as be unfavorable for using that rear disintegration is unpacked.
The actual use:
Cylinder-packing of the present utility model uses the back proof by 1000 heats:
1) ladle pot bottom position erosion resistibility is very strong; brick impact zone position thickness after using 1000 heats is 330 millimeters (residual brick+bricks laid on flat of laid on end+permanent layer at the bottom of the ladle tank; original thickness is 540 millimeters), safety coefficient at the bottom of the multilayer protection raising ladle tank.Light maintenance number of times at the bottom of the reduction ladle tank improves the ladle turnaround speed.
2) ladle tank body anti-erosion and erosion resistibility are better, and smooth surface is smooth, do not have crackle to exist, and do not prick iron, conveniently in use the tracking of ladle are used, and only eat away 100 millimeters thick after using 1000 times.
3) permanent layer insulating brick, the material for permanent liner in pouring smooth surface after the use can also be used, and having having of insulating brick to be beneficial to hot-metal bottle uses the back permanent layer to water tearing open of material feeding to take off, reduce labor strength, improve the hot-metal bottle turnover rate, the globality that the ladle permanent layer is watered material feeding has played defence line, second road effect that prevents ladle leakage iron, has fully guaranteed ladle security performance in use.
4) Al behind use 1000 stoves
2O
3After tearing open and pull down ,-SiC-C aluminum-silicon carbide brick do not find to ooze the iron place.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is provided with the structural representation that high-strength aluminium matter is watered another embodiment of material feeding protective layer at the bottom of the utility model ladle jar above the compound lining working lining.
The specific embodiment
Given embodiment describes the specific embodiment of the present utility model in detail below in conjunction with accompanying drawing.
As shown in Figure 1, comprise the ladle tank body, ladle tank body composite lining, composite lining at the bottom of the ladle tank, ladle bag mouth lining is characterized in that:
1) described ladle tank body composite lining is by the outer light thermal-insulation permanent layer 2 of being close to tank body 1, the castable permanent layer 3 that combines of outer insulation permanent layer 2 therewith, the therewith Al that combines of castable permanent layer 3
2O
3-SiC-C brick is that aluminum-silicon carbide brick working lining 4 forms,
2) at the bottom of the described ladle tank composite lining by undermost light thermal-insulation permanent layer 2 ', be located at the castable permanent layer 3 of this orlop light thermal-insulation permanent layer 2 ' top ', be located at this castable permanent layer 3 ' top flat block Al
2O
3-SiC-C aluminum-silicon carbide brick layer 4 ' and be located at this flat Al of block
2O
3-SiC-C aluminum-silicon carbide brick layer 4 ' top laid on end Al
2O
3-SiC-C aluminum-silicon carbide brick working lining 5 forms.
3) described ladle bag mouth lining 6 is high alumina castable.
As shown in Figure 2, composite lining Al at the bottom of described ladle tank
2O
3Also be provided with high-strength aluminum castable protective layer 7 above the-SiC-C brick aluminum-silicon carbide brick working lining 5.
The outer light thermal-insulation permanent layer 2 that described ladle is close to tank body 1 and orlop light thermal-insulation permanent layer 2 ' build by laying bricks or stones by insulating brick.
Described Al
2O
3-SiC-C aluminum-silicon carbide brick is the molded article of compression moulding.
The design of ladle lining of the present utility model stops the molten iron infiltration layer by layer, stops potential safety hazard, improves the service life of hot-metal bottle, the security performance height; This ladle lining have high thermal shock resistance, antiscour and erosion-resisting characteristics good and be difficult for dry slag can the alkali resistance slag again can acid-resisting scouring; The low energy of saving of this cylinder-packing thermal conductivity factor; Construction is simple, the short ladle cycle rate that improves of engineering time; Bag life-span end height, 1000 heats do not need to change at the bottom of the tank, and the bag wall life-span also can reach 1000 heats need not be changed, and maintenance cycle is short; Be easy to after the use disintegrate; Permanent layer (insulating brick and castable) can be used more than the 3 tanks labour continuously, and saving resource ton iron cost is low.
Claims (3)
1, a kind of composite type safety molten iron cylinder-packing comprises the ladle tank body, the compound lining of ladle tank body, and compound lining at the bottom of the ladle jar, ladle bag mouth lining is characterized in that:
1) the compound lining of described ladle tank body is by the outer light thermal-insulation permanent layer of being close to tank body, and outer therewith insulation permanent layer combines waters the material feeding permanent layer, and water the working lining that the material feeding permanent layer combines therewith and form,
2) at the bottom of the described ladle jar compound lining by undermost light thermal-insulation permanent layer, be located at this and water the material feeding permanent layer above orlop light thermal-insulation permanent layer, be located at this and water the brick laid on flat layer above the material feeding permanent layer and be located at this brick-on-end working lining above brick laid on flat layer and form.
3) described ladle bag mouth lining is high alumina castable.
2, composite type safety molten iron cylinder-packing according to claim 1 is characterized in that also being provided with high-strength aluminium matter on compound lining working lining at the bottom of the described ladle jar waters the material feeding protective layer.
3, composite type safety molten iron cylinder-packing according to claim 1 is characterized in that described ladle is close to the outer light thermal-insulation permanent layer of tank body and built by laying bricks or stones by insulating brick with orlop light thermal-insulation permanent layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200136044U CN201423442Y (en) | 2009-05-06 | 2009-05-06 | Compound safety ladle lining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200136044U CN201423442Y (en) | 2009-05-06 | 2009-05-06 | Compound safety ladle lining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201423442Y true CN201423442Y (en) | 2010-03-17 |
Family
ID=42022878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200136044U Expired - Fee Related CN201423442Y (en) | 2009-05-06 | 2009-05-06 | Compound safety ladle lining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201423442Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985170A (en) * | 2010-07-20 | 2011-03-16 | 郑州振东耐磨材料有限公司 | Method for laying bottom of prefabricated block ladle by using small building blocks |
| CN102500752A (en) * | 2011-11-10 | 2012-06-20 | 武汉钢铁(集团)公司 | Masonry process adopting encircling bricks of steel ladles for continuous steel casting |
| CN102728828A (en) * | 2012-06-21 | 2012-10-17 | 莱芜钢铁集团有限公司 | Ladle working liner and preparation method thereof |
| CN102825247A (en) * | 2012-08-15 | 2012-12-19 | 济钢集团有限公司 | Opening of torpedo type molten iron ladle |
| CN103464734A (en) * | 2013-08-27 | 2013-12-25 | 海城市东和泰迪冶金炉材有限公司 | Safe steel ladle lining and building method thereof |
| CN103506579A (en) * | 2013-09-18 | 2014-01-15 | 宁夏共享集团有限责任公司 | Pouring basin |
| CN103878356A (en) * | 2013-05-04 | 2014-06-25 | 上海利尔耐火材料有限公司 | Tundish lining construction method |
| CN104148624A (en) * | 2014-08-25 | 2014-11-19 | 新兴铸管股份有限公司 | Building method for hot-metal ladle |
| CN108705072A (en) * | 2018-04-26 | 2018-10-26 | 浙江宏丰炉料有限公司 | Plot structure is impacted at a kind of durability packet bottom |
| CN108971471A (en) * | 2018-08-21 | 2018-12-11 | 北京利尔高温材料股份有限公司 | A kind of carbon-free steel cladding conjunction packet bottom construction technology |
| CN112024861A (en) * | 2020-08-06 | 2020-12-04 | 首钢京唐钢铁联合有限责任公司 | KR desulfurization ladle inside lining |
| CN114905033A (en) * | 2022-05-20 | 2022-08-16 | 武汉钢铁有限公司 | Hot metal ladle structure with heating function |
-
2009
- 2009-05-06 CN CN2009200136044U patent/CN201423442Y/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985170A (en) * | 2010-07-20 | 2011-03-16 | 郑州振东耐磨材料有限公司 | Method for laying bottom of prefabricated block ladle by using small building blocks |
| CN102500752A (en) * | 2011-11-10 | 2012-06-20 | 武汉钢铁(集团)公司 | Masonry process adopting encircling bricks of steel ladles for continuous steel casting |
| CN102728828A (en) * | 2012-06-21 | 2012-10-17 | 莱芜钢铁集团有限公司 | Ladle working liner and preparation method thereof |
| CN102825247A (en) * | 2012-08-15 | 2012-12-19 | 济钢集团有限公司 | Opening of torpedo type molten iron ladle |
| CN103878356A (en) * | 2013-05-04 | 2014-06-25 | 上海利尔耐火材料有限公司 | Tundish lining construction method |
| CN103464734A (en) * | 2013-08-27 | 2013-12-25 | 海城市东和泰迪冶金炉材有限公司 | Safe steel ladle lining and building method thereof |
| CN103506579A (en) * | 2013-09-18 | 2014-01-15 | 宁夏共享集团有限责任公司 | Pouring basin |
| CN103506579B (en) * | 2013-09-18 | 2016-06-15 | 共享装备股份有限公司 | A kind of pouring basin |
| CN104148624A (en) * | 2014-08-25 | 2014-11-19 | 新兴铸管股份有限公司 | Building method for hot-metal ladle |
| CN104148624B (en) * | 2014-08-25 | 2016-06-15 | 新兴铸管股份有限公司 | Iron ladle building method |
| CN108705072A (en) * | 2018-04-26 | 2018-10-26 | 浙江宏丰炉料有限公司 | Plot structure is impacted at a kind of durability packet bottom |
| CN108971471A (en) * | 2018-08-21 | 2018-12-11 | 北京利尔高温材料股份有限公司 | A kind of carbon-free steel cladding conjunction packet bottom construction technology |
| CN112024861A (en) * | 2020-08-06 | 2020-12-04 | 首钢京唐钢铁联合有限责任公司 | KR desulfurization ladle inside lining |
| CN112024861B (en) * | 2020-08-06 | 2022-04-26 | 首钢京唐钢铁联合有限责任公司 | KR desulfurization ladle inside lining |
| CN114905033A (en) * | 2022-05-20 | 2022-08-16 | 武汉钢铁有限公司 | Hot metal ladle structure with heating function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100317 Termination date: 20180506 |