CN107858530A - A kind of antimony sulfide ore oxygen-enriched smelting method - Google Patents
A kind of antimony sulfide ore oxygen-enriched smelting method Download PDFInfo
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- CN107858530A CN107858530A CN201711242100.5A CN201711242100A CN107858530A CN 107858530 A CN107858530 A CN 107858530A CN 201711242100 A CN201711242100 A CN 201711242100A CN 107858530 A CN107858530 A CN 107858530A
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- Prior art keywords
- oxygen
- enriched
- sulfide ore
- passed
- antimony sulfide
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B30/00—Obtaining antimony, arsenic or bismuth
- C22B30/02—Obtaining antimony
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/10—Dry methods smelting of sulfides or formation of mattes by solid carbonaceous reducing agents
Abstract
The invention discloses a kind of antimony sulfide ore oxygen-enriched smelting method, comprise the steps of：(1) it is 100 in mass ratio by the antimony sulfide ore after crushing, lime stone and quartz sand：20‑25：18 20 are mixed evenly, and obtain compound；(2) spherolite is made in compound, and is sent into oxygen-rich oxide stove and carries out oxidizing semlting, oxygen-enriched air is preheated to >=200 DEG C, and be passed through in oxygen-rich oxide stove, smelting temperature is 1000 DEG C 1200 DEG C, the 40min of melting 30, obtains melted gangue；(3) melted gangue is entered into oxygen-enriched reduction furnace by material trough, coal powder is put into oxygen-enriched reduction furnace, and be passed through and be preheated to >=200 DEG C of oxygen-enriched air, smelting temperature is 1250 DEG C 1350 DEG C, the 60min of melting 50, obtains reduced blast furnace；(4) reduced blast furnace is entered in fuming furnace by material trough, reclaims antimony.The oxygen-enriched air smelting technological process of the present invention simplifies, and by oxygen-enriched strengthening smelting, production efficiency greatly improves, and labor intensity is low, while power and Fuel Consumption are few.
Description
Technical field
The invention belongs to non-ferrous metal metallurgy technical field, more particularly to a kind of antimony sulfide ore oxygen-enriched smelting method.
Background technology
At present, in antimony sulfide ore oxidation furnace fusion process, substantial amounts of oxygen need to be provided and aoxidized with coke or metal
Reaction, existing offering oxygen way is directly to be blasted air in stove with air blower.Due to oxygen concentration relatively low (only 21% in air
Left and right), the useless composition such as nitrogen is high (up to 79%), smelting process is strengthened, and has taken away substantial amounts of heat energy,
So that the technique is low (about 20t/m2.d) compared with other non-ferrous metal metallurgy technique unit capacities, energy consumption, high (the burnt rate of material consumption
More than 30%, iron ore rate more than 50%), SO in waste gas2Concentration is low (0.8%-1.5%), is unfavorable for recovery comprehensive utilization, from
And improve production cost.For antimony metal as a kind of small metal, production scale of enterprise is smaller, in smelting equipment technology relative to
What the metals such as copper, lead, zinc fell behind at last, that environmental pollution serious, high energy consumption, metal recovery rate are low etc. be present.
The content of the invention
It is an object of the invention to：For above-mentioned problem, there is provided a kind of degree of oxidation is high, reduces pollution, simultaneously
Improve the rate of recovery, the antimony sulfide ore oxygen-enriched smelting method that technique is simple, energy consumption is low.
In order to realize foregoing invention purpose, the technical solution adopted by the present invention is as follows：
A kind of antimony sulfide ore oxygen-enriched smelting method, is comprised the steps of：
(1) it is 100 in mass ratio by the antimony sulfide ore after crushing, lime stone and quartz sand：20-25：18-20 is mixed
Uniformly, compound is obtained；
(2) spherolite is made in compound, spherolite then is sent into oxygen-rich oxide stove carries out oxidizing semlting, and oxygen-enriched air is pre-
Heat is passed through in oxygen-rich oxide stove to >=200 DEG C, and smelting temperature is 1000 DEG C -1200 DEG C, after melting 30-40min, is stopped logical
Enter oxygen-enriched air, be incubated 20-25min, obtain melted gangue；
(3) melted gangue is entered into oxygen-enriched reduction furnace by material trough, by melted gangue：Coal powder=10：0.5-1 matter
Amount ratio, coal powder is put into oxygen-enriched reduction furnace, and be passed through and be preheated to >=200 DEG C of oxygen-enriched air, smelting temperature 1250
DEG C -1350 DEG C, after melting 50-60min, stopping is passed through oxygen-enriched air, is incubated 30-35min, obtains reduced blast furnace；
(5) reduced blast furnace is entered in fuming furnace by material trough, reclaims antimony；The cigarette ash of reduction melting process is by granulation
Reduction melting process is returned afterwards.
It is preferred that the particle diameter of the spherolite is 15-20mm, water content 8-10%.
It is preferred that the lime stone ﹥ containing CaO 70%, quartz sand contain SiO2﹥ 80%.
It is preferred that the oxygenous volumetric concentration of oxygen-enriched air being passed through in oxygen-rich oxide stove is 50-85%, it is described oxygen-enriched
Air using bottom blowing or it is side-blown by the way of be blown into oxygen-rich oxide stove.
It is preferred that the oxygenous volumetric concentration of oxygen-enriched air being passed through in oxygen-enriched reduction furnace is 50-85%, it is described oxygen-enriched
Air using bottom blowing or it is side-blown by the way of be blown into oxygen-enriched reduction furnace.
It is preferred that the pressure in the oxygen-rich oxide stove is 0.1-0.3MPa, the pressure in the oxygen-enriched reduction furnace is
0.2-0.4MPa。
It is preferred that the average grain diameter of the coal powder is 0.5-4mm.
In summary, by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
(1) antimony sulfide ore oxygen-enriched smelting method of the present invention is by improving in oxygen-enriched air the volumetric concentration of oxygen and to oxygen-enriched
Air is preheated, so that the fusing of antimong-containing material, the volatilization oxidation reaction uniform velocity of antimony are accelerated, reactant in the unit interval
Increase, and directly enter stove after concentrate and the granulation of auxiliary material dispensing, without sintering back powder operation；Therefore equipment disposal ability improves, so as to
Cause various energy consumptions, the reduction of material consumption.
(2) present invention uses oxygen-rich oxide stove and oxygen-enriched reduction furnace simultaneously, and oxygen-enriched air is used into bottom blowing or side-blown
Mode, oxidation and reduction all more can be fully carried out, improve metal recovery rate；By the way that melted gangue is directly entered by material trough
Oxygen-enriched reduction furnace, the change of melt transporting mode, realize and seethe stirring, realize material non-clotted slag.
(3) oxygen-enriched air smelting technological process of the invention simplifies, and is not required to back powder and sintering circuit, oxidation furnace, reduction furnace pass through
Oxygen-enriched strengthening smelting, so as to which production efficiency greatly improves, labor intensity is low, while power and Fuel Consumption are few.
Embodiment
For the objects, technical solutions and advantages of the present invention are more clearly understood, preferred embodiment is enumerated below, to this hair
Bright further description.However, it is necessary to illustrate, many details listed in specification are used for the purpose of making reader to this
The one or more aspects of invention have a thorough explanation, can also realize the present invention's even without these specific details
These aspects.
Embodiment 1
A kind of antimony sulfide ore oxygen-enriched smelting method, is comprised the steps of：
(1) it is 100 in mass ratio by the antimony sulfide ore after crushing, lime stone and quartz sand：20：18 are mixed evenly,
Obtain compound；Lime stone contains 75% CaO, and quartz sand contains 85% SiO2；
(2) compound is made spherolite, the particle diameter of spherolite is 15mm, water content 8%；Then spherolite is sent into oxygen-enriched oxygen
Change stove and carry out oxidizing semlting, oxygen-enriched air is preheated to 300 DEG C, and be passed through in oxygen-rich oxide stove, smelting temperature is 1000 DEG C, is melted
After refining 40min, stopping is passed through oxygen-enriched air, is incubated 20min, obtains melted gangue；The oxygenous volumetric concentration of oxygen-enriched air is
70%, the oxygen-enriched air is blown into oxygen-rich oxide stove by the way of bottom blowing；
(3) melted gangue is entered into oxygen-enriched reduction furnace by material trough, by melted gangue：Coal powder=10：0.5 quality
Ratio, into oxygen-enriched reduction furnace putting into average grain diameter is 2mm coal powder, and is passed through and is preheated to 300 DEG C of oxygen-enriched air, melting
Temperature is 1300 DEG C, and after melting 50min, stopping is passed through oxygen-enriched air, is incubated 30min, obtains reduced blast furnace；Oxygen-enriched air is oxygen-containing
Air volume concentration is 70%, and the oxygen-enriched air is blown into oxygen-enriched reduction furnace by the way of bottom blowing；
(4) reduced blast furnace is entered in fuming furnace by material trough, reclaims antimony；The cigarette ash of reduction melting process is by granulation
Reduction melting process is returned afterwards.
The present embodiment actual production effectively feeds intake operating rate ＞ 95%, and the antimony metal rate of recovery is up to 91%.
Embodiment 2
A kind of antimony sulfide ore oxygen-enriched smelting method, is comprised the steps of：
(1) it is 100 in mass ratio by the antimony sulfide ore after crushing, lime stone and quartz sand：25：20 are mixed evenly,
Obtain compound；Lime stone contains 80% CaO, and quartz sand contains 90% SiO2；
(2) compound is made spherolite, the particle diameter of spherolite is 15mm, water content 8%；Then spherolite is sent into oxygen-enriched oxygen
Change stove and carry out oxidizing semlting, oxygen-enriched air is preheated to 500 DEG C, and be passed through in oxygen-rich oxide stove, smelting temperature is 1200 DEG C, is melted
After refining 30min, stopping is passed through oxygen-enriched air, is incubated 25min, obtains melted gangue；The oxygenous volumetric concentration of oxygen-enriched air is
50%, the oxygen-enriched air is blown into oxygen-rich oxide stove by the way of bottom blowing；
(3) melted gangue is entered into oxygen-enriched reduction furnace by material trough, by melted gangue：Coal powder=10：1 mass ratio
Example, coal powder of the average grain diameter for 4mm is put into oxygen-enriched reduction furnace, and be passed through and be preheated to 500 DEG C of oxygen-enriched air, melting temperature
Spend for 1250 DEG C, after melting 60min, stopping is passed through oxygen-enriched air, is incubated 35min, obtains reduced blast furnace；Oxygen-enriched air is oxygenous
Volumetric concentration is 50%, and the oxygen-enriched air is blown into oxygen-enriched reduction furnace by the way of bottom blowing；
(4) reduced blast furnace is entered in fuming furnace by material trough, reclaims antimony；The cigarette ash of reduction melting process is by granulation
Reduction melting process is returned afterwards.
The present embodiment actual production effectively feeds intake operating rate ＞ 95%, and the antimony metal rate of recovery is up to 90%.
Embodiment 3
A kind of antimony sulfide ore oxygen-enriched smelting method, is comprised the steps of：
(1) it is 100 in mass ratio by the antimony sulfide ore after crushing, lime stone and quartz sand：25：20 are mixed evenly,
Obtain compound；Lime stone contains 85% CaO, and quartz sand contains 90% SiO2；
(2) compound is made spherolite, the particle diameter of spherolite is 20mm, water content 10%；Then spherolite is sent into oxygen-enriched
Oxidation furnace carries out oxidizing semlting, and oxygen-enriched air is preheated into 700 DEG C, and is passed through in oxygen-rich oxide stove, and smelting temperature is 1000 DEG C,
After melting 40min, stopping is passed through oxygen-enriched air, is incubated 20min, obtains melted gangue；The oxygenous volumetric concentration of oxygen-enriched air is
85%, the oxygen-enriched air is blown into oxygen-rich oxide stove by the way of side-blown；
(3) melted gangue is entered into oxygen-enriched reduction furnace by material trough, by melted gangue：Coal powder=10：1 mass ratio
Example, coal powder of the average grain diameter for 4mm is put into oxygen-enriched reduction furnace, and be passed through and be preheated to 700 DEG C of oxygen-enriched air, melting temperature
Spend for 1350 DEG C, after melting 50min, stopping is passed through oxygen-enriched air, is incubated 30min, obtains reduced blast furnace；Oxygen-enriched air is oxygenous
Volumetric concentration is 85%, and the oxygen-enriched air is blown into oxygen-enriched reduction furnace by the way of side-blown；
(4) reduced blast furnace is entered in fuming furnace by material trough, reclaims antimony；The cigarette ash of reduction melting process is by granulation
Reduction melting process is returned afterwards.
The present embodiment actual production effectively feeds intake operating rate ＞ 95%, and the antimony metal rate of recovery is up to 89.0%.
Embodiment 4
A kind of antimony sulfide ore oxygen-enriched smelting method, is comprised the steps of：
(1) it is 100 in mass ratio by the antimony sulfide ore after crushing, lime stone and quartz sand：20：18 are mixed evenly,
Obtain compound；Lime stone contains 75% CaO, and quartz sand contains 85% SiO2；
(2) compound is made spherolite, the particle diameter of spherolite is 20mm, water content 10%；Then spherolite is sent into oxygen-enriched
Oxidation furnace carries out oxidizing semlting, and oxygen-enriched air is preheated into 200 DEG C, and is passed through in oxygen-rich oxide stove, and smelting temperature is 1000 DEG C,
After melting 40min, stopping is passed through oxygen-enriched air, is incubated 20min, obtains melted gangue；The oxygenous volumetric concentration of oxygen-enriched air is
85%, the oxygen-enriched air is blown into oxygen-rich oxide stove by the way of side-blown；
(3) melted gangue is entered into oxygen-enriched reduction furnace by material trough, by melted gangue：Coal powder=10：1 mass ratio
Example, coal powder of the average grain diameter for 4mm is put into oxygen-enriched reduction furnace, and be passed through and be preheated to 200 DEG C of oxygen-enriched air, melting temperature
Spend for 1350 DEG C, after melting 50min, stopping is passed through oxygen-enriched air, is incubated 30min, obtains reduced blast furnace；Oxygen-enriched air is oxygenous
Volumetric concentration is 85%, and the oxygen-enriched air is blown into oxygen-enriched reduction furnace by the way of side-blown；
(4) reduced blast furnace is entered in fuming furnace by material trough, reclaims antimony；The cigarette ash of reduction melting process is by granulation
Reduction melting process is returned afterwards.
The present embodiment actual production effectively feeds intake operating rate ＞ 95%, and the antimony metal rate of recovery is up to 90%.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (7)
- A kind of 1. antimony sulfide ore oxygen-enriched smelting method, it is characterised in that：Comprise the steps of：(1) it is 100 in mass ratio by the antimony sulfide ore after crushing, lime stone and quartz sand：20-25：18-20 mixes equal It is even, obtain compound；(2) spherolite is made in compound, spherolite then is sent into oxygen-rich oxide stove carries out oxidizing semlting, and oxygen-enriched air is preheated to >=200 DEG C, and be passed through in oxygen-rich oxide stove, smelting temperature is 1000 DEG C -1200 DEG C, and after melting 30-40min, stopping is passed through richness Oxygen air, 20-25min is incubated, obtains melted gangue；(3) melted gangue is entered into oxygen-enriched reduction furnace by material trough, by melted gangue：Coal powder=10：0.5-1 mass ratio Example, puts into coal powder, and be passed through and be preheated to >=200 DEG C of oxygen-enriched air into oxygen-enriched reduction furnace, smelting temperature for 1250 DEG C- 1350 DEG C, after melting 50-60min, stopping is passed through oxygen-enriched air, is incubated 30-35min, obtains reduced blast furnace；(4) reduced blast furnace is entered in fuming furnace by material trough, reclaims antimony；The cigarette ash of reduction melting process returns after granulation Return former fusion process.
- 2. antimony sulfide ore oxygen-enriched smelting method according to claim 1, it is characterised in that：The particle diameter of the spherolite is 15- 20mm, water content 8-10%.
- 3. antimony sulfide ore oxygen-enriched smelting method according to claim 1, it is characterised in that：The lime stone ﹥ containing CaO 70%, quartz sand contains SiO2﹥ 80%.
- 4. antimony sulfide ore oxygen-enriched smelting method according to claim 1, it is characterised in that：It is described to be passed through in oxygen-rich oxide stove The oxygenous volumetric concentration of oxygen-enriched air be 50-85%, the oxygen-enriched air using bottom blowing or it is side-blown by the way of be blown into oxygen-enriched oxygen Change in stove.
- 5. antimony sulfide ore oxygen-enriched smelting method according to claim 1, it is characterised in that：It is described to be passed through in oxygen-enriched reduction furnace The oxygenous volumetric concentration of oxygen-enriched air be 50-85%, the oxygen-enriched air using bottom blowing or it is side-blown by the way of be blown into it is oxygen-enriched also In former stove.
- 6. antimony sulfide ore oxygen-enriched smelting method according to claim 4, it is characterised in that：Pressure in the oxygen-rich oxide stove Strong is 0.1-0.3MPa, and the pressure in the oxygen-enriched reduction furnace is 0.2-0.4MPa.
- 7. antimony sulfide ore oxygen-enriched smelting method according to claim 5, it is characterised in that：The average grain diameter of the coal powder For 0.5-4mm.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108359814A (en) * | 2018-04-08 | 2018-08-03 | 邝江华 | A method of vulcanization Sb-Au ore oxygen enriched molten bath melting |
| CN112176202A (en) * | 2020-10-28 | 2021-01-05 | 广西华远金属化工有限公司 | Antimony smelting method adopting oxygen-enriched side-blown column smelting |
| CN113046571A (en) * | 2021-03-08 | 2021-06-29 | 易门铜业有限公司 | Smelting system and method for reducing generation of magnetic iron in copper ore smelting process |
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| CN106916966A (en) * | 2017-02-21 | 2017-07-04 | 广西生富锑业科技股份有限公司 | The oxygen-rich oxide method of smelting and its device of a kind of antimong-containing material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108359814A (en) * | 2018-04-08 | 2018-08-03 | 邝江华 | A method of vulcanization Sb-Au ore oxygen enriched molten bath melting |
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| CN112176202A (en) * | 2020-10-28 | 2021-01-05 | 广西华远金属化工有限公司 | Antimony smelting method adopting oxygen-enriched side-blown column smelting |
| CN113046571A (en) * | 2021-03-08 | 2021-06-29 | 易门铜业有限公司 | Smelting system and method for reducing generation of magnetic iron in copper ore smelting process |
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