CN201971885U - Bottom-blowing oxidization crude-refining metallurgical furnace for antimony ores - Google Patents
Bottom-blowing oxidization crude-refining metallurgical furnace for antimony ores Download PDFInfo
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- CN201971885U CN201971885U CN2011200601607U CN201120060160U CN201971885U CN 201971885 U CN201971885 U CN 201971885U CN 2011200601607 U CN2011200601607 U CN 2011200601607U CN 201120060160 U CN201120060160 U CN 201120060160U CN 201971885 U CN201971885 U CN 201971885U
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- furnace
- airflow
- metallurgical furnace
- heater
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Abstract
The utility model discloses a bottom-blowing oxidization crude-refining metallurgical furnace for antimony ores, which comprises a furnace body. A burden feeding port is disposed on the top or the lateral surface of the upper portion of the furnace body, the furnace body is provided with an airflow distributing plate arranged at the bottom of a hearth, a fan blows air upwards from the bottom of the hearth via the airflow distributing plate, a flue gas outlet which leads flue gas to enter a condensing dust collecting system is arranged on the top or the lateral surface of the upper portion of the furnace body, and a slag discharge outlet is disposed at the bottom of the furnace body. The bottom-blowing oxidization crude-refining metallurgical furnace integrates advantages of a blast furnace, an open-hearth furnace and a roasting furnace, and has the advantages of high stock columns, thin material layers, low coke yield and high recycling rate.
Description
Technical field
The utility model relates to a kind of antimony ore bottom blowing oxidation and slightly refines metallurgical furnace.
Background technology
Antimony ore commonly used slightly refines metallurgical furnace three kinds, and a kind of is blast furnace, and two kinds is open hearth and stoving oven in addition, and wherein open hearth and stoving oven comparing class are seemingly.
One, blast furnace
Stibium blast furnace by Tin Mine Mining Affairs Bureau in utility model in 1963, it is at low column, the thin bed of material, high coke yield, realize the voloxidation of stibnite concentrate in the blast furnace in hot-top, the slag making of high price weisspiessglanz reduction decomposition and gangue separates, it is because strong to the adaptability of ore, the bed ability is big, the mechanization degree advantages of higher, by updating and improve for many years, now become the main antimony regulus equipment of China, with traditional copper metallurgy, blast furnaces such as lead are the same, air is gone into stove by bosh water jacket tuyere from the air blast of furnace charge both sides, with furnace charge a series of metallurgical chemistry reactions take place, the principal reaction formula has:
2Sb
2S
3+9O
2=2Sb
2O
3+6SO
2 C+O
2=CO
2 S+0
2=SO
2 2C+O
2=2CO
The antimony component generates weisspiessglanz by oxidation, volatilization, enters the condensation dust collecting system with flue gas.
Gangue reacts with generation slag making such as adding the interior flux iron ore of stove, Wingdale, generates mobile good slag, and the inflow cupola well is discharged by the slag road.
Though blast furnace is strong to adaptability to raw material, now be the main antimony regulus equipment of China, following some deficiency is arranged:
(1) energy consumption height, outstanding with burnt rate especially, common blast furnace reaches about 35%～40% of ore weight;
(2) stone rate height causes slag rate height, influences the antimony metal rate of recovery;
(3) handle low grade ore and cause deficiency in economic performance because of factors such as burnt rate height, the rate of recovery are low.
Two, open hearth and stoving oven open hearth and stoving oven are similar, by coke or lump coal heat supply, handle low-grade sulfuration lump ore stone, produce solid slag, open hearth reacts required oxygen and goes into stove by centrifugal blower from grate bottom air blast, and the required oxygen of stoving oven is gone into stove by the vacuum fan exhausting, open hearth and stoving oven mechanization degree are low, two hand equalization, labour productivity is low, the little (4～6t/m of bed ability
2.d), the ore bad adaptability, smelting recovery is low.
The utility model content
The purpose of this utility model is to provide a kind of, bed ability height strong to adaptability to raw material, burnt rate is low, the rate of recovery is high antimony ore bottom blowing oxidation slightly to refine metallurgical furnace.
Metallurgical furnace is slightly refined in this antimony ore bottom blowing oxidation that the utility model provides, comprise body of heater, body of heater top or upper side are provided with the furnace charge input port, body of heater is provided with airflow-distribution board in the position of burner hearth bottom, blower fan is upwards blown from burner hearth bottom by this airflow-distribution board, body of heater top or upper side are provided with and make flue gas enter the exhanst gas outlet of condensation dust collecting system, and bottom of furnace body has slag row mouth.
The utility model combines existing blast furnace, open hearth, the advantage of stoving oven, the change that its air blast mode takes place, strengthened smelting process, furnace temperature compares stoving oven, open hearth is high 200～400 ℃, furnace gas is evenly distributed, avoided the furnace charge perforation of traditional drum wind furnace both sides to run wind, the thorax heart is worn persistent ailments such as not saturating, the bed ability, burnt consumption, main economic and technical norms such as antimony content in slag are than existing blast furnace, stoving oven and open hearth optimization, only be gangue composition in the furnace charge because of slag simultaneously, be solid slag, need not be as blast furnace, add flux and make liquid slag, so the slag rate is low more than blast furnace on year-on-year basis, the antimony content in slag rate of loss is low, and the rate of recovery significantly improves than blast furnace on year-on-year basis.
Description of drawings
Fig. 1 is the structural representation that metallurgical furnace is slightly refined in the utility model antimony ore bottom blowing oxidation.
Embodiment
As can be seen from Figure 1, be applicable to that the utility model metallurgical furnace comprises body of heater 1, furnace bottom 2, body of heater 1 mainly are made up of burner hearth 11 and shell 12, wind pushing cavity 13, slag row mouth 14, furnace charge input port 15, exhanst gas outlet 16 that refractory brick surrounds, and the burner hearth area is generally 0.5～10m
2, the stock column height is generally 1～8m.Burner hearth bottom is an airflow-distribution board 3, and wind pushing cavity 13 is below airflow-distribution board 3, and the wind of roots blower or centrifugal blower is delivered to wind pushing cavity 13, then by airflow-distribution board 3 from the burner hearth bottom air feed that makes progress.Furnace charge input port 15 (also can be located at the upper of furnace body side) at the body of heater top, exhanst gas outlet 16 (also can be located at the body of heater top) in the upper of furnace body side, flue gas enters the condensation dust collecting system from this exhanst gas outlet, slag row mouth 14 is located at bottom of furnace body or side, and slag is got rid of from slag notch by artificial or mechanize.The shape of airflow-distribution board can have multiple, as long as the wind that blower fan can be sent into reasonably distributes, and guides wind upwards blows from the bottom of burner hearth and gets final product, so it can adopt tubulature type, orifice-plate type, screen mesh type, blast cap formula or the like, and its material can be with iron and steel or refractory brick material.
Be an example handling the sulfuration lump ore that contains antimony grade 40% below, use the coke heat supply:
1, stoving oven: bed ability 5 t/m
2.d about, burnt consumption 8～10%, antimony content in slag 2～3%, the rate of recovery is about 93%;
2, open hearth: bed ability 5t/m
2.d about, burnt consumption 10～12%, antimony content in slag 3～4%, the rate of recovery is about 92%;
3, blast furnace: bed ability 20t/m
2.d about, burnt consumption about 35%, antimony content in slag 1.2～1.5%, the rate of recovery is about 96%;
4, this metallurgical furnace: bed ability 35t/m
2.d about, burnt loss-rate 6～8%, antimony content in slag 0.8～1%, the rate of recovery 97.5%.
The utility model is strong to adaptability to raw material as can be seen from top test, and important economic and technical norms such as its ability, burnt rate, the rate of recovery obviously are better than traditional type of furnace blast furnace, open hearth, stoving oven.
Claims (4)
1. metallurgical furnace is slightly refined in an antimony ore bottom blowing oxidation, comprise body of heater (1), body of heater top or upper side are provided with furnace charge input port (15), it is characterized in that body of heater (1) is provided with airflow-distribution board (3) in the position of burner hearth bottom, blower fan is upwards blown from burner hearth bottom by this airflow-distribution board, body of heater top or upper side are provided with and make flue gas enter the exhanst gas outlet (16) of condensation dust collecting system, and bottom of furnace body has slag row mouthful (14).
2. metallurgical furnace is slightly refined in antimony ore bottom blowing oxidation according to claim 1, it is characterized in that the position of described body of heater below airflow-distribution board is a wind pushing cavity (13) by roots blower or centrifugal blower air feed.
3. metallurgical furnace is slightly refined in antimony ore bottom blowing oxidation according to claim 1 and 2, it is characterized in that the burner hearth cross-sectional area is 0.5～10m
2, furnace height can make the scope of stock column height at 1-8m.
4. metallurgical furnace is slightly refined in antimony ore bottom blowing oxidation according to claim 1 and 2, it is characterized in that airflow-distribution board (4) is orifice-plate type or screen mesh type or shell and tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200601607U CN201971885U (en) | 2011-03-10 | 2011-03-10 | Bottom-blowing oxidization crude-refining metallurgical furnace for antimony ores |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200601607U CN201971885U (en) | 2011-03-10 | 2011-03-10 | Bottom-blowing oxidization crude-refining metallurgical furnace for antimony ores |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201971885U true CN201971885U (en) | 2011-09-14 |
Family
ID=44576992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200601607U Expired - Fee Related CN201971885U (en) | 2011-03-10 | 2011-03-10 | Bottom-blowing oxidization crude-refining metallurgical furnace for antimony ores |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201971885U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168187A (en) * | 2011-03-10 | 2011-08-31 | 娄底市兴华有色金属有限公司 | Bottom-blowing oxidation rough smelting technology for antimony ore and metallurgical furnace |
-
2011
- 2011-03-10 CN CN2011200601607U patent/CN201971885U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168187A (en) * | 2011-03-10 | 2011-08-31 | 娄底市兴华有色金属有限公司 | Bottom-blowing oxidation rough smelting technology for antimony ore and metallurgical furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110914 Termination date: 20180310 |