CN201106055Y - Tapping groove of blast furnace - Google Patents
Tapping groove of blast furnace Download PDFInfo
- Publication number
- CN201106055Y CN201106055Y CNU2007200924151U CN200720092415U CN201106055Y CN 201106055 Y CN201106055 Y CN 201106055Y CN U2007200924151 U CNU2007200924151 U CN U2007200924151U CN 200720092415 U CN200720092415 U CN 200720092415U CN 201106055 Y CN201106055 Y CN 201106055Y
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- Prior art keywords
- iron
- blast furnace
- wall
- lining
- groove
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- Expired - Fee Related
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Abstract
The utility model relates to a blast furnace tapping channel which comprises an iron groove, with cross section of concave structure and consisting of a permanent layer outer wall (2) and an iron trough castable working layer (3). The blast furnace trough is characterized in that: a cooling device (1) is positioned on the groove wall of the two sides of the front section of the iron groove and the permanent layer outer wall (2) is made from dry vibration material. A water cooling form is adopted by the blast furnace trough to enhance cooling of the lining of the iron groove so as to lead hot metal near the working layer to solidify due to the temperature of the hot metal being lower than that of a hot metal line of solidification, thus forming a stagnant salamander, which can effectively prevent fiery flowing hot metal from scouring the working lining of the castable and prolong the service life of the lining of the iron groove, on the surface of the working layer of the iron groove. The aim of the blast furnace tapping channel adopting dry vibration material to make the permanent layer outer wall is that high temperature expansion stress of the castable working layer can be buffered effectively and the lining can be prevented from damage caused by expansion stress, the lining can be prevented from leaking hot metal downward and iron can be avoiding from running out in the iron groove.
Description
Technical field
The utility model relates to metallurgical technology field, relates to a kind of blast furnace iron outlet groove specifically.
Background technology
In recent years, some variations have taken place in blast furnace in production practice, adopt fine fodder, heat size expansion, molten iron temperature raising, furnace top pressure to improve the cycle of tapping a blast furnace is accelerated, the amount of tapping a blast furnace and the quantity of slag increase, the time lengthening of tapping a blast furnace, the molten iron flow velocity increases, and makes the working conditions of ditch lining material become harsh more.For improving iron runner work-ing life, each refractory materials enterprise has carried out extensive and deep research to casting house with refractory materials material and performance, constructional method etc.Present domestic most enterprises produce the iron runner castable that uses and are generally iron 10～150,000 ton work-ing life, and its employed raw material and material prescription system are convergent substantially, and this makes that certain difficulty has appearred in the continuation improvement raising to material under certain cost constraint condition.Secondly by the long-term production practical observation, iron runner uses the later stage when needing repairing, mainly be because the wearing and tearing of iron spot place (normally preceding 2～6m place of the iron runner) furrow bank that falls are very serious, do not keep in repair and the production safety accident to occur, but this moment, how many furrow banks of iron runner back segment do not wear and tear, at least one-period can also be re-used, 100～300mm can be differed through observing iron spot place and back segment ditch wall thickness.
Summary of the invention
The purpose of this utility model provides a kind of ditch lining material that makes at existing weak point in the above-mentioned prior art just---degree of wear basically identical before and after the iron runner castable working lining, thereby the blast furnace iron outlet groove that the iron runner whole service life is improved.
The utility model can be realized by following technique measures:
Blast furnace iron outlet groove of the present utility model comprises that the cross section of being made up of jointly permanent layer outer wall and iron runner castable working lining is the iron runner groove of concave structure, in the furrow bank of iron runner groove leading portion both sides, be provided with refrigerating unit, for cooperating the use of water cooling tube, the utility model changes traditional iron runner permanent layer outer wall into be made by dry-type vibration material permanent layer in design, described dry-type vibration material is not adopt the pouring fireproof material of water as the construction carrier, directly constructs with the siccative form for preparing.Mainly be based on following consideration with dry-type vibration material: the moisture-free of (1) material own, quick construction is convenient, and storing time is short, long service life; (2) in order effectively to cushion the high temperature expansion stress of mould material working lining, the liner of avoiding causing because of expansion stress damages; (3) can effectively absorb water cooling tube expansion at high temperature, avoid water pipe to squeeze bad working layer; (4) the downward seepage of liquid metal and slag in the time of can effectively stoping liner to meet accident in use forms functionally gradient gradually in the material body, can effectively avoid thermal stresses material to be caused characteristics such as damage, avoids taking place iron runner and runs the iron accident.
Refrigerating unit described in the utility model is made up of the water cooling tube with the setting of S type arrangement mode that is arranged between permanent layer outer wall and the iron runner castable working lining; Water coolant runs into the molten iron accident of blasting when take place leaking the iron accident, the water temperature monitoring device is installed in exit at water cooling tube, when this device raises in the temperature anomaly that monitors the exit water coolant, can send instruction control ingress water valve immediately cuts off the water supply, and startup water-freeing arrangement, with the surplus water emptying in the water cooling tube, guarantee the safety of stokehold to greatest extent.
Described dry-type vibration material described in the utility model is formulated by starting material such as alumine, corundum, SiC, wedding agents.
The utility model is provided with the water cooling tube of S type in the furrow bank of iron runner groove leading portion both sides effect is to come controlled chilling intensity by the flow that changes water coolant in the water cooling tube, make in the iron runner molten iron Yin Wendu near working lining be lower than the molten steel solidification line and solidify at refractory surface, thereby form the immobilising ladle heel layer of one deck on iron runner working lining surface, it can stop red-hot mobile molten iron to the washing away and wear and tear of mould material working lining effectively, reaches to prolong the iron runner liner purpose in work-ing life.Because the serious zone of iron runner erosive wear mainly concentrates on preceding 2～6m zone of iron runner, for improving the effect of water-cooled, reduce the complexity of equipment simultaneously, therefore the only local water-cooled that adopts in the forward zone of iron runner (0～4m or 6m) is gone up in design.Simultaneously the intake-outlet of water cooling tube all is located at bottom of trench permanent layer place, reequips uncomplicatedly, can not increase the difficulty of construction.Cooling-water flowing and molten iron coflow.
The utility model has following beneficial effect compared to existing technology:
The iron runner front portion is when effectively being cooled off, and the molten iron that solidifies has been protected the ditch wall material, has prolonged its work-ing life; And the dry type vibratory bed of material can fully absorb and expands and antiseepage, and the water temperature monitoring can be guaranteed water safety, prolongs whole iron runner work-ing life effectively, increases economic efficiency.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The A-A sectional view of Fig. 2 diagrammatic sketch 1.
Sequence number among the figure: 1, water cooling tube, 2, dry-type vibration material permanent layer outer wall, 3, the iron runner castable working lining, 4, slag runner, 5, skimmer, 6, water temperature monitoring device and turnover water valve.
Embodiment
The utility model is further described below with reference to embodiment (accompanying drawing):
The utility model blast furnace iron outlet groove comprises that the cross section of being made up of jointly permanent layer outer wall 2 and iron runner castable working lining 3 is the iron runner groove of concave structure, be provided with refrigerating unit in the both sides furrow bank in the section of iron runner groove leading portion 4-6m, more specifically say: described refrigerating unit is made up of the water cooling tube with the setting of S type arrangement mode that is arranged between permanent layer outer wall 2 and the iron runner castable working lining 3, and the entery and delivery port of water cooling tube all is located at permanent layer outer wall place, ditch bottom; During work, cooling-water flowing in the water cooling tube and molten iron coflow; At the water cooling tube water outlet water temperature monitoring device and turnover water valve 6 are installed; Described permanent layer outer wall 2 is to be made by dry-type vibration material.
Water temperature monitoring device described in the utility model can be arbitrary suitable a kind of in the known technology.
When implementing technology of the present utility model, should at first install water cooling tube (water cooling tube should carry out bulge test after completing, guarantee not leak not quick-fried), and whether the analyzing adapter place that should try the water leak, the water temperature monitoring device is connected to the watch-keeping cubicle; Construct by formulated dry-type vibration material permanent layer of starting material such as alumine, corundum, SiC, wedding agents with mould afterwards, mould did not take out after construction was finished; Install the iron runner internal mold at last, Al according to a conventional method constructs
2O
3-SiC-C matter iron runner castable working lining.After iron runner came into operation, cooling-water flowing and molten iron coflow in the water cooling tube were to improve cooling performance.
Claims (4)
1, a kind of blast furnace iron outlet groove, it comprises that the cross section of being made up of jointly permanent layer outer wall (2) and iron runner castable working lining (3) is the iron runner groove of concave structure, it is characterized in that: be provided with refrigerating unit (1) in the furrow bank of iron runner groove leading portion both sides, described permanent layer outer wall (2) is to be made by dry-type vibration material.
2, blast furnace iron outlet groove according to claim 1 is characterized in that: described refrigerating unit (1) is made up of the water cooling tube with the setting of S type arrangement mode that is arranged between permanent layer outer wall (2) and the iron runner castable working lining (3).
3, blast furnace iron outlet groove according to claim 2 is characterized in that: at the water cooling tube water outlet water temperature monitoring device is installed.
4, blast furnace iron outlet groove according to claim 1 is characterized in that: cooling-water flowing in the described refrigerating unit (1) and molten iron coflow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200924151U CN201106055Y (en) | 2007-10-29 | 2007-10-29 | Tapping groove of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200924151U CN201106055Y (en) | 2007-10-29 | 2007-10-29 | Tapping groove of blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201106055Y true CN201106055Y (en) | 2008-08-27 |
Family
ID=39957852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200924151U Expired - Fee Related CN201106055Y (en) | 2007-10-29 | 2007-10-29 | Tapping groove of blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201106055Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102653802A (en) * | 2012-05-21 | 2012-09-05 | 宜兴市龙宸炉料有限公司 | Improved tapping channel |
| CN102899433A (en) * | 2012-09-25 | 2013-01-30 | 南京联合荣大工程材料有限责任公司 | Steel outer wall of blast furnace tapping channel with water cooling and monitoring functions and method |
| CN103074458A (en) * | 2013-02-04 | 2013-05-01 | 莱芜钢铁集团有限公司 | Eccentric bottom tapping furnace and slag-free tapping method |
| CN103074459A (en) * | 2013-02-04 | 2013-05-01 | 莱芜钢铁集团有限公司 | Slagless tapping system |
| CN104313221A (en) * | 2014-10-14 | 2015-01-28 | 北京联合荣大工程材料有限责任公司 | Water-cooled iron storage type iron runner and cooling method thereof |
| CN106367551A (en) * | 2016-10-14 | 2017-02-01 | 南京联合荣大工程材料有限责任公司 | Main channel water-cooling device of blast furnace tapping channel and mounting and utilizing method |
| CN107447067A (en) * | 2017-09-29 | 2017-12-08 | 四川德胜集团钒钛有限公司 | A kind of blast furnace cleek provided with water cooling device |
| CN110331247A (en) * | 2019-08-21 | 2019-10-15 | 北京瑞尔非金属材料有限公司 | A kind of cooling type molten iron tap drain and cooling means |
| CN111139328A (en) * | 2020-03-25 | 2020-05-12 | 郑州市瑞沃耐火材料有限公司 | Water-cooled iron-storage type iron runner structure |
-
2007
- 2007-10-29 CN CNU2007200924151U patent/CN201106055Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102653802A (en) * | 2012-05-21 | 2012-09-05 | 宜兴市龙宸炉料有限公司 | Improved tapping channel |
| CN102899433A (en) * | 2012-09-25 | 2013-01-30 | 南京联合荣大工程材料有限责任公司 | Steel outer wall of blast furnace tapping channel with water cooling and monitoring functions and method |
| CN103074458A (en) * | 2013-02-04 | 2013-05-01 | 莱芜钢铁集团有限公司 | Eccentric bottom tapping furnace and slag-free tapping method |
| CN103074459A (en) * | 2013-02-04 | 2013-05-01 | 莱芜钢铁集团有限公司 | Slagless tapping system |
| CN103074458B (en) * | 2013-02-04 | 2014-10-29 | 莱芜钢铁集团有限公司 | Eccentric bottom tapping furnace and slag-free tapping method |
| CN103074459B (en) * | 2013-02-04 | 2015-01-21 | 莱芜钢铁集团有限公司 | Slagless tapping system |
| CN104313221A (en) * | 2014-10-14 | 2015-01-28 | 北京联合荣大工程材料有限责任公司 | Water-cooled iron storage type iron runner and cooling method thereof |
| CN104313221B (en) * | 2014-10-14 | 2016-06-15 | 北京联合荣大工程材料有限责任公司 | A kind of water-cooling type iron storing type iron runner and cooling means |
| CN106367551A (en) * | 2016-10-14 | 2017-02-01 | 南京联合荣大工程材料有限责任公司 | Main channel water-cooling device of blast furnace tapping channel and mounting and utilizing method |
| CN107447067A (en) * | 2017-09-29 | 2017-12-08 | 四川德胜集团钒钛有限公司 | A kind of blast furnace cleek provided with water cooling device |
| CN110331247A (en) * | 2019-08-21 | 2019-10-15 | 北京瑞尔非金属材料有限公司 | A kind of cooling type molten iron tap drain and cooling means |
| CN111139328A (en) * | 2020-03-25 | 2020-05-12 | 郑州市瑞沃耐火材料有限公司 | Water-cooled iron-storage type iron runner structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080827 Termination date: 20101029 |