CN2705468Y - Metal mangnesium smelting water coal slurry refining furnace - Google Patents
Metal mangnesium smelting water coal slurry refining furnace Download PDFInfo
- Publication number
- CN2705468Y CN2705468Y CN 200420015864 CN200420015864U CN2705468Y CN 2705468 Y CN2705468 Y CN 2705468Y CN 200420015864 CN200420015864 CN 200420015864 CN 200420015864 U CN200420015864 U CN 200420015864U CN 2705468 Y CN2705468 Y CN 2705468Y
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- water slurry
- heater
- furnace
- refining furnace
- coal
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Abstract
The utility model is a kind of magnesium metal smelting coal water slurry refining furnace, it comprises that having smoke outlet, top has the body of heater of table and be positioned at body of heater and the crucible of support fixation on table, on the furnace wall of body of heater, have the hole, be provided with coal-water slurry nozzle in the hole, be provided with in the crucible periphery and inboard wall of furnace body fixed firestopping sheath.The utility model has utilized this energy-efficient clean fuel of coal water slurry.The efficiency of combustion height of coal water slurry, and be direct spray burning, so its sulfurous gas and discharged nitrous oxides concentration are low, soot emissions meet national requirements for environmental protection fully.Adopting coal water slurry is the homogeneity of temperature in body of heater heating can the raising stove, so not only improved the thermo-efficiency of refining furnace, has also prolonged the work-ing life of refining furnace.Simultaneously also lower working strength of workers, improved workman's work situation, improved the stability and the controllability of production process.
Description
Technical field
The utility model relates to a kind of smelting-furnace for magnesium metal, is specially magnesium metal smelting coal water slurry refining furnace.
Technical background
The Pidgeon process magnesium metal smelting mainly is divided into three phases: calcining, reduction, refining, this three phases all need to be heated to high temperature just can make reaction carry out.At present, the refining furnace that uses in the Pidgeon process magnesium metal smelting mostly adopts the method for raw coal direct combustion.This is that the refining furnace of fuel comprises top and has the body of heater that table, bottom have smoke outlet with the raw coal, is provided with the crucible that is supported on the table in body of heater, is provided with the combustion chamber around body of heater, has the pyrotechnics hole on the furnace wall between combustion chamber and the body of heater.Raw coal is in the combustion chamber internal combustion, and the heat of generation enters body of heater and discharges from smoke outlet through the pyrotechnics hole, thereby realizes the heating to crucible.Have only 70% and the rate of combustion of raw coal is the highest, the thermo-efficiency of refining furnace is the highest also can only to reach 50%, so on the whole, existing is non-uniform temperature in the lower and stove of the refining furnace thermo-efficiency of fuel with the raw coal.In addition, the environmental pollution that causes during raw coal combustion is also extremely serious, and the higher relatively price of raw coal also causes production cost higher.
Coal water slurry is the coal based fluid fuel that coal+water+additive is formed, and is a kind of energy-efficient clean fuel that raw coal obtains by Physical Processing.It is widely used in a lot of fields.But the magnesium metal smelting refining furnace that does not also act as a fuel in the present prior art with coal water slurry.
Summary of the invention
The utility model solves and still is difficult the problem that coal water slurry is the magnesium metal smelting refining furnace of fuel at present, and magnesium metal smelting coal water slurry refining furnace is provided.
The utility model is achieved by the following technical solution: magnesium metal smelting coal water slurry refining furnace, comprise that having smoke outlet, top has the body of heater of table and be positioned at body of heater and the crucible of support fixation on table, on the furnace wall of body of heater, have the hole, be provided with coal-water slurry nozzle in the hole, be provided with in the crucible periphery and inboard wall of furnace body fixed firestopping sheath.The atomized water coal slurry sprays into the body of heater internal combustion by coal-water slurry nozzle, and the smoke outlet from body of heater is discharged fume.Because the temperature of coal water slurry spray burning is up to 1200 ℃, and the required technological temperature of magnesium metal smelting is 700 ℃-730 ℃, if cool water mixture burning can't satisfy the magnesium metal smelting temperature requirement directly to the crucible heating.By firestopping sheath is set, make cool water mixture burning direct heating firestopping sheath, after being heated, crucible is heated firestopping sheath by thermal radiation, reach the smelting temperature requirement with this.
Magnesium metal smelting coal water slurry refining furnace described in the utility model has utilized this energy-efficient clean fuel of coal water slurry.This fuel is not only carried convenience, calorific value height, temperature of combustion stable and uniform, and can reduce energy consumption, is the ideal fuels that can reach every magnesium metal smelting processing requirement.Coal water slurry is owing to be direct spray burning, so the efficiency of combustion height can reach 98%, its sulfurous gas and discharged nitrous oxides concentration are also very low, and soot emissions can reach 0 grade of the graceful blackness of Green, meet national requirements for environmental protection fully.Because adopting coal water slurry is the homogeneity of temperature in body of heater heating can the raising stove, so not only can make the thermo-efficiency of refining furnace bring up to 70%, has also prolonged the work-ing life of refining furnace.Simultaneously can lower working strength of workers, improve workman's work situation, improve the stability and the controllability of production process, but and the automatic control of implementation procedure.
Description of drawings
Fig. 1 for existing be the structural representation of the magnesium metal smelting refining furnace of fuel with the raw coal;
Fig. 2 is a magnesium metal smelting coal water slurry refining furnace structural representation described in the utility model;
Embodiment
Magnesium metal smelting coal water slurry refining furnace, comprise that having smoke outlet 3, top has the body of heater 1 of table 2 and be positioned at body of heater and the crucible 5 of support fixation on table, on the furnace wall of body of heater, have the hole, be provided with coal-water slurry nozzle 6 in the hole, be provided with in the crucible periphery and inboard wall of furnace body fixed firestopping sheath 4.
Firestopping sheath 4 can be made into the shape identical with crucible.At this moment, the smoke outlet 3 on the body of heater can be opened at furnace bottom, also can open at sidewall of the furnace body.
Firestopping sheath 4 is a round barrel shape, and its upper end and table are fixed, and bottom and bottom of furnace body are fixed, and the smoke outlet 3 of body of heater is opened on sidewall of the furnace body.The cooling-down effect of round barrel shape firestopping sheath is more excellent.At the round barrel shape firestopping sheath, smoke outlet is opened the circulation that can guarantee cigarette road in the body of heater on sidewall of the furnace body.
Body of heater 1 is one cylindrical.Coal-water slurry nozzle 6 is spaced apart around body of heater.
Claims (3)
1, a kind of magnesium metal smelting coal water slurry refining furnace, comprise that having smoke outlet (3), top has the body of heater (1) of table (2) and be positioned at body of heater and the crucible (5) of support fixation on table, it is characterized by: on the furnace wall of body of heater, have the hole, be provided with coal-water slurry nozzle (6) in the hole, be provided with in the crucible periphery and inboard wall of furnace body fixed firestopping sheath (4).
2, magnesium metal smelting coal water slurry refining furnace according to claim 1, it is characterized in that: firestopping sheath (4) is a round barrel shape, and its upper end and table are fixed, and bottom and bottom of furnace body are fixed, and the smoke outlet of body of heater (3) is opened on sidewall of the furnace body.
3, magnesium metal smelting coal water slurry refining furnace as claimed in claim 1 or 2 is characterized in that: coal-water slurry nozzle (6) is spaced apart around body of heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420015864 CN2705468Y (en) | 2004-03-05 | 2004-03-05 | Metal mangnesium smelting water coal slurry refining furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420015864 CN2705468Y (en) | 2004-03-05 | 2004-03-05 | Metal mangnesium smelting water coal slurry refining furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2705468Y true CN2705468Y (en) | 2005-06-22 |
Family
ID=34848751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420015864 Expired - Fee Related CN2705468Y (en) | 2004-03-05 | 2004-03-05 | Metal mangnesium smelting water coal slurry refining furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2705468Y (en) |
-
2004
- 2004-03-05 CN CN 200420015864 patent/CN2705468Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |