CN203754742U - Molten iron insulation system - Google Patents
Molten iron insulation system Download PDFInfo
- Publication number
- CN203754742U CN203754742U CN201420011016.8U CN201420011016U CN203754742U CN 203754742 U CN203754742 U CN 203754742U CN 201420011016 U CN201420011016 U CN 201420011016U CN 203754742 U CN203754742 U CN 203754742U
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- China
- Prior art keywords
- insulation cover
- hot
- metal insulating
- insulating system
- molten iron
- 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 - Lifetime
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 118
- 238000009413 insulation Methods 0.000 title claims abstract description 95
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 59
- 239000002184 metal Substances 0.000 claims description 44
- 229910052751 metal Inorganic materials 0.000 claims description 44
- 238000005096 rolling process Methods 0.000 claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 239000011819 refractory material Substances 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 238000003032 molecular docking Methods 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 239000011449 brick Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 230000009970 fire resistant effect Effects 0.000 claims description 3
- 241000447495 Equulites leuciscus Species 0.000 claims description 2
- 238000009628 steelmaking Methods 0.000 abstract description 8
- 238000005266 casting Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 238000010079 rubber tapping Methods 0.000 abstract 2
- MRHSJWPXCLEHNI-UHFFFAOYSA-N [Ti].[V].[Fe] Chemical compound [Ti].[V].[Fe] MRHSJWPXCLEHNI-UHFFFAOYSA-N 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 5
- CXCBJSTXZQPTLV-UHFFFAOYSA-N O.[Fe].[Ti].[V] Chemical compound O.[Fe].[Ti].[V] CXCBJSTXZQPTLV-UHFFFAOYSA-N 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000003532 endogenous pyrogen Substances 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 108010052620 leukocyte endogenous mediator Proteins 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Special Wing (AREA)
Abstract
The utility model discloses a molten iron insulation system which comprises an insulation cover, two wind-shield walls and a movable door, wherein the insulation cover is provided with an insulation cover body and an insulation layer, the insulation layer is arranged on the inner side of the insulation cover body, and the insulation cover body has a shape capable of covering a trough for leading out molten iron from a blast furnace; one ends of the two wind-shield walls are close to the side wall of a furnace base of the blast furnace and are arranged under the furnace base to surround a molten iron filling operation region, and one wind-shield wall is provided with an opening for safety passing; the movable door is connected with the other ends of the two wind-shield walls and has a shape capable of completely closing the two wind-shield walls. According to the molten iron insulation system, the heat transfer of a molten vanadium-titanium iron tapping channel and the heat transfer under the furnace base of the blast furnace can be greatly avoided, the environmental pollution in a molten iron tapping process is alleviated, the potential operation hazard of a casting house is eliminated, the molten iron temperature drop is reduced, and the steelmaking temperature of the molten iron is increased.
Description
Technical field
The utility model relates to field of iron and steel smelting, more particularly, relates to a kind of system for vanadium-titanium-iron-water insulation.
Background technology
Molten iron is the main raw material of steel-making, and its chemical heat and physical thermal are the main thermals source of converter steelmaking.In general, molten iron physical thermal accounts for half of converter heat income.Molten iron temperature directly affects the number that in converter, physical thermal is brought into, and meanwhile, molten iron temperature is also the assurance of converter institute's heat requirement in steel-making.On the one hand, enter stove molten iron and have sufficiently high temperature, can make converter endogenous pyrogen sufficient, slagging is rapid; On the other hand, the raising of molten iron temperature, the add-on of steel scrap also increases thereupon, and in steel making working procedure, the consumption of molten iron raw material also can correspondingly reduce simultaneously, thus converter energy consumption also reduces thereupon.
The character of vanadium-titanium-iron-water exists some different from common molten iron, compares with common molten iron, and its fusing point is lower, and viscosity is larger, and mobility is poor, has caused the heat exchange between vanadium-titanium-iron-water and air to increase, and then the loss that has strengthened vanadium-titanium-iron-water temperature.
Smelting iron and steel comprises many links such as blast furnace casting, Molten Iron Transportation and hot metal pretreatment.Adopt the mode of transport of " tank on earth ", directly adopt iron ladle transportation molten iron, by blast-melted, accept, transport, cushion storage, hot metal pretreatment, converter and convert the multiple functions such as iron and hot-metal insulating and integrate.Cancel steelshop molten iron ladle pouring station, can reduce by a molten iron ladle pouring operation, there is the features such as shortened process, compact total figure layout, therefore, that the mode of " tank on earth " has is capable of reducing energy consumption, reduce iron loss and reduce the advantages such as smoke contamination, and has produced larger economic benefit and social benefit.
Adopt after " tank on earth " technical process, the temperature loss of blast furnace casting time, the transportation of iron district and iron runner becomes the principal element of hot metal temperature drop, probably accounts for full-range 76% left and right.Therefore the hot metal temperature drop of, taking Insulation to reduce before iron runner, Molten Iron Transportation is most important for reducing hot metal temperature drop.
Utility model content
In order to address the above problem, the utility model provides a kind of hot-metal insulating system that reduces temperature drop loss in Molten Iron Transportation process.
All respects and/or the advantage of part in ensuing description being set forth to the utility model general plotting, some will be clearly by description, or can be by the enforcement of the utility model general plotting is learnt.
According to one side of the present utility model, described hot-metal insulating system comprises insulation cover, two sides windbreak and dodge gate: insulation cover, there is insulation cover body and thermal insulation layer, thermal insulation layer is arranged on the inner side of insulation cover body, and insulation cover body has can cover the shape of drawing the trough of molten hot metal from blast furnace; Two sides windbreak, one end abut against blast furnace table sidewall and be arranged under described table, surround molten iron fill operations region, wherein a windbreak is provided with the opening for safe passing; Dodge gate, the other end of connection two sides windbreak, has the shape that can seal described two sides windbreak completely.
According to embodiment of the present utility model, described insulation cover body comprises semicylindrical steel construction piece.
According to embodiment of the present utility model, described insulation cover also comprises the one or more viewing windows that are arranged on insulation cover one side and/or both sides.
According to embodiment of the present utility model, described insulation cover also comprises the one or more hangers that are arranged on insulation cover body top.
According to embodiment of the present utility model, described insulation cover also comprises the web member that protrudes from insulation cover one end, and described web member is used for docking blast furnace and swings and to slip mouth.
According to embodiment of the present utility model, described thermal insulation layer is the refractory materials of spraying or the fire resistant heat preserving of stickup cotton.
According to embodiment of the present utility model, described hot-metal insulating system comprises the end to end described insulation cover of multistage.
According to embodiment of the present utility model, the upper surface of described two sides windbreak and the table of blast furnace are contour.
According to embodiment of the present utility model, described two sides windbreak comprises the brick structure that includes forming column.
According to embodiment of the present utility model, the other end of described two sides windbreak also comprises concrete column.
According to embodiment of the present utility model, described dodge gate comprises one or more rolling screen door.
Hot-metal insulating system of the present utility model solved that molten iron flows the trough of the molten hot metal of drawing from blast furnace and molten iron pack iron ladle into after temperature drop loss in transit of iron ladle and discharge more flue dust and pollute the problem of casting house environment.
Accompanying drawing explanation
By the description of the utility model being carried out below in conjunction with drawings and Examples, these and/or other aspect of the present utility model and advantage will become clear and be easier to and understand, wherein:
Figure 1A shows according to the schematic diagram of the vertical view after the insulation cover assembling of the hot-metal insulating system of the utility model embodiment;
Figure 1B show according to the insulation cover of the hot-metal insulating system of the utility model embodiment in Figure 1A along B to the schematic diagram of watching;
Fig. 1 C show according to the insulation cover of the hot-metal insulating system of the utility model embodiment in Figure 1A along A to the schematic diagram of watching;
Fig. 2 shows according to the schematic diagram of the windbreak of hot-metal insulating system of the utility model embodiment and the vertical view of rolling screen door.
Wherein, 1 is according to the hanger of hot-metal insulating system of the present utility model, and 2 is insulation cover, 21,22,23 respectively corresponding corresponding three sections of insulation covers, 3 is web member, 4 is viewing window, 5 is insulation cover body, 6 is thermal insulation layer, and 7 is rolling screen door, and 8 is windbreak, 9 is fire exit, 10 is forming column, and 11 is concrete column, and 12 is iron ladle railway.
Embodiment
Now embodiment of the present utility model is described in detail, in the accompanying drawings, wherein, identical label represents identical parts to its example shown all the time.Below with reference to the accompanying drawings embodiment is described to explain the utility model.
Figure 1A shows according to the schematic diagram of the vertical view after the insulation cover assembling of the hot-metal insulating system of the utility model embodiment; Figure 1B, Fig. 1 C be respectively insulation cover in Figure 1A along B to watching and along A to the schematic diagram of watching.
As shown in Figure 1B, insulation cover 2 has insulation cover body 5 and thermal insulation layer 6 double-layer structures.Thermal insulation layer 6 is arranged on the inner side of insulation cover body 5, and it is cotton that thermal insulation layer 6 can be the refractory materials of spraying or the fire resistant heat preserving of stickup, be used for better keeping covering from drawing the temperature of molten hot metal mobile within the trough of molten iron in blast furnace.Insulation cover body 5 has the shape that can cover trough, is preferably just in time cover buckle in the top of trough, to stop the air outside molten iron mobile in trough and insulation cover 2 to carry out heat transmission.Therefore, insulation cover body 5 can be set to the structure that semi-cylindrical shaped, rectangular parallelepiped, triangular prism etc. have conventional shape, as long as it has the area that can cover trough for covering the mask of trough.The material of insulation cover body 5 also can select to be easy to as steel plate, engineering plastic flitch etc. the material of moulding, durable and stable mechanical property as required, and still, the utility model is not limited to this.In the present embodiment, insulation cover body 5 is set for semicylindrical steel construction piece, and one or more hangers 1 are set above insulation cover 2, to facilitate, the corresponding trough of insulation cover 2 is carried out to corresponding covering and moved, when insulation cover 2 is longer, use a hanger 1 to be not enough to lift by crane evenly insulation cover 2, now, can adopt as required 1 pair of insulation cover 2 of two or more hangers to lift by crane.
As shown in Figure 1 C, the viewing window 4 that can open and close at any time in a side setting of insulation cover 2, when facilitating above insulation cover 2 covers in trough, can open viewing window 4, and then the situation of the molten iron that flows in trough is observed and monitoring at any time, meanwhile, viewing window 4 also can be used for the molten iron in trough to carry out the operations such as Local Dry slag cleaning.In the present embodiment, viewing window 4 is set to carry out the removable cover of opening and closing operation.Obviously, can in a side and/or the both sides of insulation cover 2, one or more viewing windows 4 be set according to the length of insulation cover 2, to facilitate, the molten iron flow situation in trough be monitored more accurately.
As shown in Figure 1A, at the end of insulation cover 2, can be provided with web member 3, for slipping mouth with the swing of blast furnace, dock, so that insulation cover 2 also can cover in trough in the junction with blast furnace, and then reduce the temperature drop loss in junction.For convenient and the swing of blast furnace, slip docking of mouth, web member 3 can be set to have the shape of the end that protrudes from insulation cover, and can slip the form fit at mouth place with swing.
In addition, according to the insulation cover of the present embodiment, also can be the above insulation cover 2 of multistage joins end to end and is spliced, and according to the integral body trend of the shape assembling insulation cover of trough, to guarantee that the trough with certain length and shape also can be completely covered.
Fig. 2 shows according to the schematic diagram of the windbreak of hot-metal insulating system of the utility model embodiment and the vertical view of rolling screen door.As shown in Figure 2, two sides windbreak 8 lays respectively at the left and right sides of iron ladle railway 12, one end of described two sides windbreak 8 abuts against the sidewall in space under the table of blast furnace, for stop outside air flow and iron ladle railway 13 on iron ladle in molten iron between heat transmission, to reduce the impact of air flowing on the molten iron temperature in this situation.Two sides windbreak 8 is for including the brick structure of forming column 10, to guarantee that described two sides windbreak 8 can stress balance and have on the whole stability.The other end at the first windbreak is provided with the opening that can be used for safe passing, when there is emergency situation, operating personnel under table can be by opening herein fire exit 9 during as escape, therefore, can described opening be set to hold the door that a people or two people pass through simultaneously side by side.
In the present embodiment, two sides windbreak 8 is set to the parallel body of wall in two sides.But the utility model is not limited to this, as long as the lower space of whole blast furnace table all can be surrounded, therefore, also can adopt the continuous body of wall of multiaspect to surround the lower space of blast furnace table.In addition, also the scope that can select body of wall to surround according to the space size at iron ladle railway 12 places in space under table, on the one hand, assurance is all surrounded the space at iron ladle railway 12 places, place, on the other hand, the spaciousness that guarantees the space that surrounds, in the space being surrounded to facilitate, operating personnel carries out operation.
The other end at two sides windbreak 8 also comprises concrete column 11, on concrete column 11, can be provided with dodge gate, but, concrete column not necessarily, also dodge gate directly can be connected to the other end of two sides windbreak 8, as long as dodge gate has the shape that can seal described two sides windbreak 8 completely, and can seal the other end of described two sides windbreak 8.
According to the space situation at dodge gate place, can be set to one or more rolling screen door 7 by dodge gate, to facilitate, open and close at any time operation.The number of rolling screen door 7 need to be determined according to the size of the distance between two sides windbreak 8 and single rolling screen door, fans between rolling screen door more and can use concrete column connect and fix.Rolling screen door 7 in closing condition, can effectively stop the reduction of convection of air to molten iron temperature when daily operation, only, when Special Circumstances, just rolling screen door 7 is opened.The Special Circumstances here can be the situations such as blast-melted lower ground or railway are burned, and in order to resume production fast, opening rolling screen door 7 also can carry out operation to railway from rolling screen door end with convenient working personnel; In addition, iron ladle railway 12 need to periodically clean, safeguard, now also needs to open rolling screen door 7 and carries out operation.
In addition, can also two sides windbreak 8 and the upper surface of rolling screen door 7 be set to be same level with the table of blast furnace, that is to say, two sides windbreak 8, rolling screen door 7 and table have identical height, do like this and be more conducive to reduce the calorific loss that convection of air causes molten iron, and then guarantee the temperature of the molten iron in iron ladle.But the utility model is not limited to this, also the present position and height of two sides windbreak 8 can be set according to actual operation and space situation.
When the insulation cover 2 of making according to the hot-metal insulating system of the utility model embodiment, can adopt and there is certain thickness waste and old pipeline as insulation cover body 5, waste and old pipe cutting is become to have to the segment of certain length, inner side sprayable refractory is as thermal insulation layer 6, and in a side mid-way of every section, viewing window 4 is set, the upper end of the outside surface of insulation cover body 5 arranges hanger 1, according to the shape of trough, little segment pipe is carried out to head and the tail and assemble, and the web member 3 of outstanding insulation cover body 5 ends is set slipping with the swing of blast furnace position end that mouth docks.According to the performance of refractory materials, conventionally in spraying, after 1 week, just can reach the service requirements of insulation.
When the hot-metal insulating system of the utility model embodiment is installed, first with two sides windbreak 8, space integral body under table is surrounded, rolling screen door 7 to be put down completely with ground and contacted, the convection current of blocks air causes hot metal temperature drop loss.Use crane according to correspondingly-sized, insulation cover 2 to be covered on to trough top according to the shape of trough by hanger 1, the swing of web member 3 docking blast furnaces is slipped to mouth, guarantee that insulation cover 2 can cover whole iron runner.
The following describes as a concrete example that realizes hot-metal insulating system of the present utility model.Using the waste and old pipeline making height of corresponding size is 650mm, width is the insulation cover 2 of the shape as shown in Figure 1A of 1160mm, comprise insulation cover 21, 22, 23 3 parts, the length of insulation cover 21 is made as 7000mm, the inner circle arc length of insulation cover 22 is 5500mm, insulation cover 23 is long is 3700mm, web member 3 is long is 50mm, insulation cover body 5 adopts the thick steel plate of 20mm, the thick 55mm of being of refractory materials spraying, viewing window 4 adopts 410mm long, the removable cover form that 200mm is wide, and the upper end of viewing window 4 is 220mm apart from the vertical range of the lower end of top hanger 1, distance between two sides windbreak 8 is 5000mm, can adopt one or two rolling screen door 7 to be arranged side by side and be placed between concrete column 11.Hot-metal insulating system according to notebook data design, meets Ergonomics standard, and operational safety is convenient.
In addition, insulation cover 2, two sides windbreak 8 and dodge gate have formed a hot-metal insulating system, only use wherein one to be not enough to thoroughly solve the temperature drop problem producing before molten iron arrival steel-making.Practical data shows, uses this heat-insulation system, and the hot metal temperature drop that molten iron arrives before steel-making has reduced 30.9 ℃ than originally, and theoretical calculation analysis, is used separately insulation cover 2 parts only to reduce 5.07 ℃ of temperature drops, uses separately windbreak 8 parts in two sides only to reduce 9 ℃ of temperature drops.
By finding out description of the present utility model above, hot-metal insulating system of the present utility model has reached requirements such as reducing the heat transmission of molten iron and environmental pollution, and eliminated casting house operation hidden danger, reduced hot metal temperature drop, improve the temperature of molten iron-steelmaking, there is good application value.
Although represented and described embodiment more of the present utility model, but, it should be appreciated by those skilled in the art, in the situation that not departing from principle of the present utility model and spirit, can make in these embodiments change, scope of the present utility model is limited by claim and equivalent thereof.
Claims (11)
1. a hot-metal insulating system, is characterized in that, described hot-metal insulating system comprises:
Insulation cover, has insulation cover body and thermal insulation layer, and thermal insulation layer is arranged on the inner side of insulation cover body, and insulation cover body has can cover the shape of drawing the trough of molten hot metal from blast furnace;
Two sides windbreak, one end abut against blast furnace table sidewall and be arranged under described table, surround molten iron fill operations region, wherein a windbreak is provided with the opening for safe passing;
Dodge gate, the other end of connection two sides windbreak, has the shape that can seal described two sides windbreak completely.
2. hot-metal insulating system as claimed in claim 1, is characterized in that, described insulation cover body comprises semicylindrical steel construction piece.
3. hot-metal insulating system as claimed in claim 1, is characterized in that, described insulation cover also comprises the one or more viewing windows that are arranged on insulation cover one side and/or both sides.
4. hot-metal insulating system as claimed in claim 1, is characterized in that, described insulation cover also comprises the one or more hangers that are arranged on insulation cover body top.
5. hot-metal insulating system as claimed in claim 1, is characterized in that, described insulation cover also comprises the web member that protrudes from insulation cover one end, and described web member is used for docking blast furnace and swings and to slip mouth.
6. hot-metal insulating system as claimed in claim 1, is characterized in that, described thermal insulation layer is the refractory materials of spraying or the fire resistant heat preserving of stickup cotton.
7. the hot-metal insulating system as described in any one in claim 1-6, is characterized in that, described hot-metal insulating system comprises the end to end described insulation cover of multistage.
8. hot-metal insulating system as claimed in claim 1, is characterized in that, the upper surface of described two sides windbreak and the table of blast furnace are contour.
9. hot-metal insulating system as claimed in claim 1, is characterized in that, described two sides windbreak comprises the brick structure that includes forming column.
10. hot-metal insulating system as claimed in claim 1, is characterized in that, the other end of described two sides windbreak also comprises concrete column.
11. hot-metal insulating systems as claimed in claim 1, is characterized in that, described dodge gate comprises one or more rolling screen door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420011016.8U CN203754742U (en) | 2014-01-08 | 2014-01-08 | Molten iron insulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420011016.8U CN203754742U (en) | 2014-01-08 | 2014-01-08 | Molten iron insulation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203754742U true CN203754742U (en) | 2014-08-06 |
Family
ID=51250041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420011016.8U Expired - Lifetime CN203754742U (en) | 2014-01-08 | 2014-01-08 | Molten iron insulation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203754742U (en) |
-
2014
- 2014-01-08 CN CN201420011016.8U patent/CN203754742U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140806 |