CN201361704Y - Steel ladle heater - Google Patents
Steel ladle heater Download PDFInfo
- Publication number
- CN201361704Y CN201361704Y CNU2009201372472U CN200920137247U CN201361704Y CN 201361704 Y CN201361704 Y CN 201361704Y CN U2009201372472 U CNU2009201372472 U CN U2009201372472U CN 200920137247 U CN200920137247 U CN 200920137247U CN 201361704 Y CN201361704 Y CN 201361704Y
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- CN
- China
- Prior art keywords
- steel ladle
- coal gas
- ladle
- utility
- model
- 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
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- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The utility model relates to the field of metallurgy, in particular to a steel ladle heater which comprises a coal gas burner; the coal gas burner is internally provided with a coal gas pipe and an air pipe; coal gas is introduced into the coal gas pipe, and the combustion-assisting air is introduced into the air pipe; and the coal gas burner is also internally provided with at least one hyperbaric oxygen gun. The steel ladle heater creatively adds the hyperbaric oxygen gun on the existing ladle heater so as to inject the flame to the bottom of the steel ladle, thus ensuring the full baking of the bottom, and greatly improving the baking quality and service life of the steel ladle as well as the utilization ratio of equipment.
Description
Technical field
The utility model relates to field of metallurgy, is meant a kind of steel ladle Ladle-casting apparatus especially.
Background technology
Steel ladle is used for steel mill, Foundry Works and accepts molten steel before open hearth, electric furnace or converter, carry out pouring practice.In the STEELMAKING PRODUCTION process, the molten steel that converter is produced is poured in the steel ladle, is transported to conticaster then and casts.Steel ladle must be with its oven dry heating before the dress molten steel, and the temperature of general steel ladle baking is more than 1000 ℃, and the steel ladle roaster is exactly the device that heats steel ladle by fuel combustion.
The steel ladle roaster of China's smelter mostly is upright bushing type roaster, and central tube feeds coal gas, and outer tube feeds combustion air, by production practices, finds that there is following problem in existing upright bushing type roaster.
The one, the heat energy utilization rate is low, and coal gas and air be in the mixed combustion of nozzle limit, in the limited space, is difficult to realize that coal gas fully mixes with air in bag, causes incomplete combustion.Because 1000 ℃ of high-temperature flue gas directly efflux, fume afterheat is not reclaimed, so the heat energy utilization rate of general steel ladle baking only can reach 30%.Simultaneously, the pollution that the high-temperature flue gas that effluxes is also serious environment.
The 2nd, baking quality is poor, because high-temperature flue gas is disorderly not enough in steel ladle, causes the interior temperature field of bag inhomogeneous, and especially Bao bottom and middle portion temperature difference are bigger, and maximum can reach about 200 ℃.Because bag end temperature is on the low side, often cause big water-coating port to block again, cause to open and water smooth or water and do not go out, molten steel is forced to melt down.
The 3rd, the steel ladle stoving time is long, and is even up and down for making steel ladle, must prolong the steel ladle stoving time.But stoving time and converter smelting rhythm are difficult to coupling, and steel ladle is had enough to meet the need not opened, and is difficult to satisfy production requirement.Exist the baking quality of the steel ladle number of turnover and steel ladle can not satisfy problems such as manufacturing technique requirent in the production.
The utility model content
Main purpose of the present utility model is to overcome the shortcoming of prior art, and a kind of steel ladle Ladle-casting apparatus is provided, and has advantages such as heat energy utilization rate height, baking quality be good.
The utility model adopts following technical scheme: a kind of steel ladle Ladle-casting apparatus, comprising that a coal gas burns chews, and this coal gas is provided with a gas pipe and an air hose in burning and chewing, and feeds coal gas in this gas pipe, feed combustion air in this air hose, this coal gas also is provided with at least one hyperbaric oxygen rifle in burning and chewing.
Described air hose is sheathed on outside the described gas pipe.
Described hyperbaric oxygen rifle is located in the described gas pipe.
By above-mentioned to description of the present utility model as can be known, compared with prior art, a kind of steel ladle Ladle-casting apparatus of the present utility model has following advantage:
One, the utility model creatively adds the hyperbaric oxygen rifle on existing Ladle-casting apparatus, and the flame injection to the steel ladle bottom, has been guaranteed that the bottom baking puts in place, has improved baking quality and steel ladle age greatly, has improved usage ratio of equipment, has reduced production cost;
Two, the utility model creatively adds the hyperbaric oxygen rifle on existing Ladle-casting apparatus, make coal gas fully burn, and the heat energy utilization rate greatly improves, and also greatly reduces the high-temperature flue gas that effluxes;
Three, the utility model has reduced the steel ladle stoving time, enhances productivity.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The component names of each label representative is as follows among the figure:
1 steel ladle;
11 refractory masses;
2 Ladle-casting apparatus;
20 coal gas burn to be chewed;
21 air hoses;
22 gas pipes;
23 hyperbaric oxygen rifles.
The specific embodiment
Below the utility model will be further described by the specific embodiment.
With reference to Fig. 1, a kind of steel ladle Ladle-casting apparatus 2 of the present utility model comprises that a coal gas burns to chew 20, and this coal gas burns to be chewed 20 and comprise:
One gas pipe 22 feeds coal gas in it; One air hose 21 is sheathed on outside the gas pipe 22, feeds combustion air in it; One hyperbaric oxygen rifle 23, this hyperbaric oxygen rifle 23 is located in the gas pipe 22.
The utility model is when producing, after the refractory masses 11 of steel ladle 1 lays, when it is toasted, utilize hyperbaric oxygen rifle 23, the flame injection to steel ladle 1 bottom, has been guaranteed that the bottom baking puts in place, improve steel ladle age greatly, improved usage ratio of equipment, reduced production cost.
Above-mentioned only is a specific embodiment of the present utility model, but design concept of the present utility model is not limited thereto, and allly utilizes this design that the utility model is carried out the change of unsubstantiality, all should belong to the behavior of invading the utility model protection domain.
Claims (3)
1, a kind of steel ladle Ladle-casting apparatus comprises that a coal gas burns to chew that this coal gas is provided with a gas pipe and an air hose in burning and chewing, and feeds coal gas in this gas pipe, feeds combustion air in this air hose, it is characterized in that: this coal gas also is provided with at least one hyperbaric oxygen rifle in burning and chewing.
2, a kind of steel ladle Ladle-casting apparatus as claimed in claim 1, it is characterized in that: described air hose is sheathed on outside the described gas pipe.
3, a kind of steel ladle Ladle-casting apparatus as claimed in claim 1 or 2, it is characterized in that: described hyperbaric oxygen rifle is located in the described gas pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201372472U CN201361704Y (en) | 2009-03-20 | 2009-03-20 | Steel ladle heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201372472U CN201361704Y (en) | 2009-03-20 | 2009-03-20 | Steel ladle heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201361704Y true CN201361704Y (en) | 2009-12-16 |
Family
ID=41472364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201372472U Expired - Lifetime CN201361704Y (en) | 2009-03-20 | 2009-03-20 | Steel ladle heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201361704Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104226969A (en) * | 2014-07-21 | 2014-12-24 | 济柴聊城机械有限公司 | Natural gas hot metal ladle baking device |
-
2009
- 2009-03-20 CN CNU2009201372472U patent/CN201361704Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104226969A (en) * | 2014-07-21 | 2014-12-24 | 济柴聊城机械有限公司 | Natural gas hot metal ladle baking device |
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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 |
Granted publication date: 20091216 |
|
| CX01 | Expiry of patent term |