CN204018709U - Modified high life low-material-consumption is smelted ladle - Google Patents
Modified high life low-material-consumption is smelted ladle Download PDFInfo
- Publication number
- CN204018709U CN204018709U CN201420530448.XU CN201420530448U CN204018709U CN 204018709 U CN204018709 U CN 204018709U CN 201420530448 U CN201420530448 U CN 201420530448U CN 204018709 U CN204018709 U CN 204018709U
- Authority
- CN
- China
- Prior art keywords
- ladle
- permanent layer
- heat insulation
- low
- consumption
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of modified high life low-material-consumption and smelt ladle, comprise ladle housing, ladle inner walls has been built permanent layer by laying bricks or stones, and permanent layer inwall is cast with circular form working lining, and circular form working lining inwall has been built consumption-type working lining by laying bricks or stones.Wherein, described permanent layer is combined with the outside permanent layer being connected with ladle housing by the inner side permanent layer being connected with circular form working lining, described inner side permanent layer is built by laying bricks or stones and is formed by high strength at high temperature heat insulation, and described outside permanent layer is built by laying bricks or stones and formed by the high strength at high temperature heat insulation being crisscross arranged and low heat conductivity heat insulation.Such scheme can significantly improve its bulk strength when guaranteeing ladle heat insulation performance, effectively reduces the operating temperature of permanent layer outside ladle, guarantees that the operating temperature of low heat conductivity heat insulation is lower than its maximum operating temperature; The smelting permanent ladle layer of building by laying bricks or stones by said method significantly improves usage safety performance and the heat preservation and insulation of bag wall, has extended the service life of permanent layer.
Description
Technical field
The utility model relates to the optimal design that centering state invention public announcement of a patent application number is the smelting ladle recorded in CN103464735A, refers to that particularly a kind of modified high life low-material-consumption smelts ladle.
Background technology
Tradition smelting steel ladle-lining is mainly divided into two-layer with fireproof construction, i.e. permanent layer and working lining, and permanent layer does not directly contact with molten steel conventionally, and thickness is about 80～150mm, and its Main Function is heat-insulation and heat-preservation, prevents that ladle temperature from declining too fast; In addition, in particular cases working lining directly contacts with molten steel because unexpected damage will cause permanent layer, so smelt under operating mode normal, also requires permanent layer can bear the erosion of 1～2 heat of molten steel and wash away; Working lining directly contacts with molten steel, and thickness is about 150～240mm.The function of smelting for realizing ladle, needs working lining to have good opposing molten steel and erosion and the performance of flushing of slag.
At present, the working lining of the more than 80% big-and-middle-sized ladle of domestic steel mill all adopts tile product to build by laying bricks or stones to form.Under special circumstances, in the external refining processes such as LF, RH, because smelting temperature is higher, when washing away and corroding the severe service condition such as even more serious and occurring, it is too fast that working lining consumes, and the security of permanent layer can not get ensureing.Therefore, when working lining is depleted to a certain degree, ladle will be stopped using, and change working lining, to ensure the use safety of permanent layer and ladle.In practical operation, working lining remains residual brick thickness ladle when 50～70mm to be finished to use, and is a bag labour.The residual brick of working lining all abandons with waste and old refractory material form when each bag labour finishes ladle overhaul.According to statistics, the residual brick of steel ladle working layer that China abandons every year, up to more than 1,000,000 tons, causes the great wasting of resources.
In order to address the above problem, in the application for a patent for invention description that the applicant is CN103464735A in publication No., propose a kind of high life low-material-consumption and smelted ladle, its working lining that tradition is smelted to ladle is designed to two layer composite structure, by the circular form working lining of pouring into a mould and the consumption-type working lining of building by laying bricks or stones, is combined.Like this, solve preferably a difficult problem for the residual brick wasting of resources of working lining, significantly reduced the consumption of smelting the required refractory material of molten steel per ton, effectively extended the service life of ladle, reduced ladle running cost.But technique scheme not worry about is smelted permanent ladle layer role, so it still has the necessity that continues optimal design.
Smelt permanent ladle layer and not only need in theory have good erosion-resisting characteristics and higher security performance with refractory material, and more will there is good heat-insulating property, but produce with existing technique the permanent layer difficulty comparatively that simultaneously meets above-mentioned 3 instructions for uses.Alumine brick as conventional in permanent layer has good erosion-resisting characteristics and higher security performance, but its heat-insulating property is poor; And thering is insulation quilt or the thermal insulation board of good thermal insulation property, its erosion-resisting characteristics and security performance are poor again.
In recent years, smelt the refractory material that the permanent layer of ladle adopts both at home and abroad and mainly comprise following two types:
One, take the materials such as clay brick, alumine brick, alumina cement castable as main, and its material volume density is large, although have good erosion-resisting characteristics and higher serviceability temperature, its thermal conductivity factor is larger, and heat-insulating property is poor.
Its two, take the materials such as fiberboard or fibrofelt as main, although its bulk density is little, thermal conductivity factor is low, in use easily crystallization efflorescence, intensity is lower, and non-refractory; Also have that to take lightening casting material or nanometer micropore heat-barrier material be main, its bulk density is little, and thermal conductivity factor is low, but its serviceability temperature and intensity are all lower, therefore its security performance is poor.
How to make full use of existing refractory material design or construct the smelting permanent ladle layer that compressive resistance is high, erosion-resisting characteristics good and heat insulation effect is good, be the difficult problem that those skilled in the art attempt to capture always.
Summary of the invention
The purpose of this utility model will be carried out improvement design to above-mentioned smelting ladle exactly, provide a kind of modified high life low-material-consumption to smelt ladle, make it not only there is good erosion-resisting characteristics and higher security performance, and have more good heat-insulating property, thereby further increase its life cycle, reduce material consumption.
For achieving the above object, the designed modified high life low-material-consumption of the utility model is smelted ladle, comprise ladle housing, described ladle inner walls has been built permanent layer by laying bricks or stones, described permanent layer inwall is cast with circular form working lining, described circular form working lining inwall has been built consumption-type working lining by laying bricks or stones, its special character is: described permanent layer is combined with the outside permanent layer being connected with ladle housing by the inner side permanent layer being connected with circular form working lining, described inner side permanent layer is built by laying bricks or stones and is formed by high strength at high temperature heat insulation, described outside permanent layer is built by laying bricks or stones and is formed by the high strength at high temperature heat insulation being crisscross arranged and low heat conductivity heat insulation.
As one of preferred version, high strength at high temperature heat insulation in the permanent layer of described outside is furnished with multi-turn along the circumferential interval of ladle inner walls from top to bottom, in same circle, between high strength at high temperature heat insulation separately, arrange polylith low heat conductivity heat insulation, the high strength at high temperature heat insulation dislocation in two adjacent rings is arranged.Like this, high strength at high temperature heat insulation and low heat conductivity heat insulation form similar " bridge structure ", the high strength at high temperature heat insulation of usining is supported between inner side permanent layer and ladle housing as " bridge pier ", and low heat conductivity heat insulation is as " bridge floor ", guarantees the heat-insulating property of permanent layer.
Further, the high strength at high temperature heat insulation in the permanent layer of described outside is furnished with 8～14 circles from top to bottom along the circumferential interval of ladle inner walls, arrange 3～5 low heat conductivity heat insulations in same circle between two high strength at high temperature heat insulations.Like this, not only can reach the requirement of strength of permanent layer but also can guarantee the heat-insulating property of permanent layer.
As two of preferred version, the high strength at high temperature heat insulation in the permanent layer of described outside is arranged and is network along ladle inner walls from top to bottom, fills polylith low heat conductivity heat insulation in the cavity of described network.Like this, high strength at high temperature heat insulation and low heat conductivity heat insulation form similar " well word structure ", high strength at high temperature heat insulation forms support frame and is arranged between inner side permanent layer and ladle housing, and polylith low heat conductivity heat insulation forms insulation face, guarantees to greatest extent the heat-insulating property of permanent layer.
Further, the rectangular or rhombus of the cavity of described network, fills 3～5 low heat conductivity heat insulations in it.Like this, can take into account strength character and the heat-insulating property of permanent layer.
Further, described high strength at high temperature heat insulation is compressive resistance 5～20Mpa, bulk density 0.6～1.5g/cm
3, 800 ℃ of thermal conductivity 0.20～0.50W/mk heat insulation; Described low heat conductivity heat insulation is compressive resistance 0.10～0.50Mpa, bulk density 0.2～0.5g/cm
3, 800 ℃ of thermal conductivity 0.04～0.15W/mk heat insulation; The thickness of described inner side permanent layer is 5～50mm; The thickness of described outside permanent layer is 5～30mm.Like this, by the optimal design of above-mentioned performance parameter, can realize with thinner design thickness structural strength performance and the heat-insulating property of permanent layer optimum.
The utility model has the advantage of: adopt such scheme, given full play to low heat conductivity heat insulation good thermal insulation property and the resistant to elevated temperatures advantage of the resistance to erosion of high strength at high temperature heat insulation high strength; Owing to utilizing high strength at high temperature heat insulation for support frame, can when guaranteeing permanent layer heat-insulating property, significantly improve heat-insulation layer bulk strength, taken into account permanent ladle layer heat-insulating property and requirement of strength, and then prevented due to the too low deficiency that causes heat-insulation layer to collapse of low heat conductivity heat-barrier material intensity.Inner side permanent layer adopts high strength at high temperature heat insulation can effectively reduce outside permanent layer operating temperature, guarantees that the operating temperature of low heat conductivity heat insulation is lower than its maximum operating temperature.The smelting permanent ladle layer of building by laying bricks or stones by said method has significantly improved usage safety performance and the heat preservation and insulation of bag wall, has extended the service life of permanent layer, thereby has further increased its life cycle, reduces material consumption.
Accompanying drawing explanation
Fig. 1 is the structural representation that a kind of modified high life low-material-consumption is smelted ladle.
Fig. 2 is A-A sectional structure schematic diagram in Fig. 1.
Fig. 3 is the deployed configuration schematic diagram of outside permanent layer in Fig. 1.
Fig. 4 is the structural representation that another kind of modified high life low-material-consumption is smelted ladle.
Fig. 5 is B-B sectional structure schematic diagram in Fig. 4.
Fig. 6 is the deployed configuration schematic diagram of outside permanent layer in Fig. 4.
In figure: ladle housing 1; Permanent layer 2 (wherein: inner side permanent layer 21, outside permanent layer 22, high strength at high temperature heat insulation 22a, low heat conductivity heat insulation 22b); Circular form working lining 3; Consumption-type working lining 4.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment 1:
A kind of modified high life low-material-consumption as shown in Fig. 1～3 is smelted ladle, comprises ladle housing 1, and ladle housing 1 inwall has been built permanent layer 2 by laying bricks or stones, and permanent layer 2 inwalls are cast with circular form working lining 3, and circular form working lining 3 inwalls have been built consumption-type working lining 4 by laying bricks or stones.Permanent layer 2 is combined with the outside permanent layer 22 being connected with ladle housing 1 by the inner side permanent layer 21 being connected with circular form working lining 3.Wherein, inner side permanent layer 21 is built by laying bricks or stones and is formed by high strength at high temperature heat insulation 22a, and outside permanent layer 22 is built by laying bricks or stones and formed by the high strength at high temperature heat insulation 22a being crisscross arranged and low heat conductivity heat insulation 22b; Particularly, high strength at high temperature heat insulation 22a is furnished with 8 circles along the ladle housing 1 circumferential interval of inwall from top to bottom, in same circle, between high strength at high temperature heat insulation 22a separately, be furnished with 4 low heat conductivity heat insulation 22b, the high strength at high temperature heat insulation 22a dislocation in two adjacent rings is arranged.Visually, its similar " bridge structure ", take high strength at high temperature heat insulation 22a as " bridge pier ", and low heat conductivity heat insulation 22b is " bridge floor ".
In the present embodiment, the thickness of inner side permanent layer 21 is 5～50mm; The thickness of outside permanent layer 22 is 5～30mm.High strength at high temperature heat insulation 22a adopts compressive resistance 5～20Mpa, bulk density 0.6～1.5g/cm
3, 800 ℃ of thermal conductivity 0.20～0.50W/mk heat insulation; Low heat conductivity heat insulation 22b adopts compressive resistance 0.10～0.50Mpa, bulk density 0.2～0.5g/cm
3, 800 ℃ of thermal conductivity 0.04～0.15W/mk heat insulation.
Adopt the smelting ladle of such scheme, its permanent layer has significantly improved usage safety performance and the heat preservation and insulation of bag wall, and then has extended the service life of ladle.
Embodiment 2:
Another kind of modified high life low-material-consumption as shown in Fig. 4～6 is smelted ladle, and its general structure is substantially the same manner as Example 1, and the parameters such as material therefor performance, thickness too.Just the high strength at high temperature heat insulation 22a in its outside permanent layer 22 arranges and is network along ladle housing 1 inwall from top to bottom, is filled with 4 low heat conductivity heat insulation 22b in the rectangular enclosure of network.Certainly, network also can adopt rhombus cavity.Visually, its similar " well word structure ", high strength at high temperature heat insulation 22a forms well shape support frame, fills polylith low heat conductivity heat insulation 22b and form insulation face between well shape support frame.
The utility model utilizes compound the building by laying bricks or stones of high strength at high temperature heat insulation 22a and low heat conductivity heat insulation 22b, give full play to advantage separately, make up shortcoming, taken into account the requirement of permanent ladle layer strength character and heat-insulating property, realized the allocation optimum of material, made designed smelting ladle not only there is good erosion-resisting characteristics and higher security performance, and have more good heat-insulating property, further increase its life cycle, reduce material consumption.
Finally, it should be pointed out that above embodiment is only the more representational example of the utility model.Obviously, the utility model is not limited to above-described embodiment, can also have many distortion.Every foundation technical spirit of the present utility model, to any simple modification made for any of the above embodiments, equivalent variations and modification, all should be thought and belong to protection domain of the present utility model.
Claims (8)
1. a modified high life low-material-consumption is smelted ladle, comprise ladle housing (1), described ladle housing (1) inwall has been built permanent layer (2) by laying bricks or stones, described permanent layer (2) inwall is cast with circular form working lining (3), described circular form working lining (3) inwall has been built consumption-type working lining (4) by laying bricks or stones, it is characterized in that: described permanent layer (2) is combined with the outside permanent layer (22) being connected with ladle housing (1) by the inner side permanent layer (21) being connected with circular form working lining (3), described inner side permanent layer (21) is built by laying bricks or stones and is formed by high strength at high temperature heat insulation (22a), described outside permanent layer (22) is built by laying bricks or stones and is formed by the high strength at high temperature heat insulation (22a) being crisscross arranged and low heat conductivity heat insulation (22b).
2. modified high life low-material-consumption according to claim 1 is smelted ladle, it is characterized in that: the high strength at high temperature heat insulation (22a) in described outside permanent layer (22) is furnished with multi-turn along the circumferential interval of ladle housing (1) inwall from top to bottom, in same circle, between high strength at high temperature heat insulation (22a) separately, arrange polylith low heat conductivity heat insulation (22b), high strength at high temperature heat insulation (22a) dislocation in two adjacent rings is arranged.
3. modified high life low-material-consumption according to claim 2 is smelted ladle, it is characterized in that: the high strength at high temperature heat insulation (22a) in described outside permanent layer (22) is furnished with 8～14 circles from top to bottom along the circumferential interval of ladle housing (1) inwall, arrange 3～5 low heat conductivity heat insulations (22b) in same circle between two high strength at high temperature heat insulations (22a).
4. modified high life low-material-consumption according to claim 1 is smelted ladle, it is characterized in that: the high strength at high temperature heat insulation (22a) in described outside permanent layer (22) is arranged and is network along ladle housing (1) inwall from top to bottom, fills polylith low heat conductivity heat insulation (22b) in the cavity of described network.
5. modified high life according to claim 4 low-material-consumption is smelted ladle, it is characterized in that: the rectangular or rhombus of the cavity of described network, in it, fill 3～5 low heat conductivity heat insulations (22b).
6. according to the modified high life low-material-consumption described in any one in claim 1～5, smelt ladle, it is characterized in that: described high strength at high temperature heat insulation (22a) is compressive resistance 5～20Mpa, bulk density 0.6～1.5g/cm
3, 800 ℃ of thermal conductivity 0.20～0.50W/mk heat insulation; Described low heat conductivity heat insulation (22b) is compressive resistance 0.10～0.50Mpa, bulk density 0.2～0.5g/cm
3, 800 ℃ of thermal conductivity 0.04～0.15W/mk heat insulation.
7. according to the modified high life low-material-consumption described in any one in claim 1～5, smelt ladle, it is characterized in that: the thickness of described inner side permanent layer (21) is 5～50mm; The thickness of described outside permanent layer (22) is 5～30mm.
8. modified high life low-material-consumption according to claim 6 is smelted ladle, it is characterized in that: the thickness of described inner side permanent layer (21) is 5～50mm; The thickness of described outside permanent layer (22) is 5～30mm.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420530448.XU CN204018709U (en) | 2014-09-15 | 2014-09-15 | Modified high life low-material-consumption is smelted ladle |
| PCT/CN2014/087190 WO2015043452A1 (en) | 2013-09-29 | 2014-09-23 | Method for improving use efficiency of smelting ladle, and smelting ladle of long service life and low material consumption |
| US15/083,316 US9989313B2 (en) | 2013-09-29 | 2016-03-29 | Smelting ladle and method for improving use efficiency thereof |
| US15/990,806 US20180274860A1 (en) | 2013-09-29 | 2018-05-28 | Smelting ladle and method for improving use efficiency thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420530448.XU CN204018709U (en) | 2014-09-15 | 2014-09-15 | Modified high life low-material-consumption is smelted ladle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204018709U true CN204018709U (en) | 2014-12-17 |
Family
ID=52058620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420530448.XU Active CN204018709U (en) | 2013-09-29 | 2014-09-15 | Modified high life low-material-consumption is smelted ladle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204018709U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105033235A (en) * | 2015-08-28 | 2015-11-11 | 桂林昌鑫机械制造有限公司 | Smelting steel ladle |
| CN106735150A (en) * | 2016-12-06 | 2017-05-31 | 武汉威林科技股份有限公司 | A kind of tundish lining refractory material and its manufacturing process |
| TWI598445B (en) * | 2016-08-15 | 2017-09-11 | 中國鋼鐵股份有限公司 | Ladel structure |
| CN107552773A (en) * | 2017-10-31 | 2018-01-09 | 攀钢集团攀枝花钢铁研究院有限公司 | Ladle masonry construction and ladle hollow brick |
| CN108393476A (en) * | 2017-07-18 | 2018-08-14 | 浙江武精机器制造有限公司 | A kind of molten steel bottom drain packet with vacuum |
| CN110817138A (en) * | 2019-09-05 | 2020-02-21 | 首钢集团有限公司 | Fire-resistant cylinder container |
-
2014
- 2014-09-15 CN CN201420530448.XU patent/CN204018709U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105033235A (en) * | 2015-08-28 | 2015-11-11 | 桂林昌鑫机械制造有限公司 | Smelting steel ladle |
| TWI598445B (en) * | 2016-08-15 | 2017-09-11 | 中國鋼鐵股份有限公司 | Ladel structure |
| CN106735150A (en) * | 2016-12-06 | 2017-05-31 | 武汉威林科技股份有限公司 | A kind of tundish lining refractory material and its manufacturing process |
| CN108393476A (en) * | 2017-07-18 | 2018-08-14 | 浙江武精机器制造有限公司 | A kind of molten steel bottom drain packet with vacuum |
| CN107552773A (en) * | 2017-10-31 | 2018-01-09 | 攀钢集团攀枝花钢铁研究院有限公司 | Ladle masonry construction and ladle hollow brick |
| CN110817138A (en) * | 2019-09-05 | 2020-02-21 | 首钢集团有限公司 | Fire-resistant cylinder container |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204018709U (en) | Modified high life low-material-consumption is smelted ladle | |
| CN104390461B (en) | Energy-saving cement rotary kiln lining and masonry process thereof | |
| CN201423442Y (en) | Compound safety ladle lining | |
| CN104226970B (en) | Optimization-type high life low-material-consumption smelts ladle | |
| CN103464735B (en) | Improve the method and high life low material consumption smelting ladle thereof of smelting ladle service efficiency | |
| CN100557166C (en) | A kind of ladle bottom construction method | |
| CN102554201A (en) | Large steel ladle and manufacturing method for same | |
| CN205996184U (en) | A kind of energy-saving ladle of low-material-consumption | |
| CN202845769U (en) | Heat-preserving steel ladle lining and steel ladle | |
| CN103302280B (en) | A kind of building method of steel ladle bottom for ultra-low carbon steel | |
| CN201485477U (en) | Liner structure for crucible and hearth of blast furnace | |
| CN202461495U (en) | Tundish cover with a composite structure | |
| CN104529485B (en) | Two-layer compound refractory material and two-layer compound refractory material ditch cover and its manufacture method and application | |
| CN203076574U (en) | Steel ladle pouring slag line underlayer | |
| CN201686704U (en) | Composite structure integrating cast bricks and veneer bricks of cooling wall | |
| CN202329164U (en) | Lining structure of reducibility ore-smelting electric furnace | |
| CN202804169U (en) | Novel steel ladle permanent layer structure | |
| CN204535408U (en) | A kind of prevent rotary kiln fall brick and reduce gas consumption build body structure by laying bricks or stones | |
| CN103937932B (en) | A kind of low heat-conducting type RH refining furnace soaking tub | |
| CN202182612U (en) | Lining structure of vertical lime pit | |
| CN105198460A (en) | Compact clay brick for blast furnace | |
| CN201960126U (en) | Built-in air-permeable brick formed by blowing argon at bottom of steel ladle | |
| CN201704856U (en) | Z-type concrete-cored heat insulation building block | |
| CN205289726U (en) | Permanent layer pouring body of improved generation combined type ladle | |
| CN203687610U (en) | Toward-fire face brick building structure of gasification furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160405 Address after: 430082 Qingshan District, Hubei City, Wuhan Province Patentee after: WUHAN IRON & STEEL (GROUP) CORP. Address before: 430080 Wuchang, Hubei Friendship Road, No. A, block, floor 999, 15 Patentee before: Wuhan Iron & Steel (Group) Corp. |