CN106086477B - The smelting system of antimony concentrate - Google Patents
The smelting system of antimony concentrate Download PDFInfo
- Publication number
- CN106086477B CN106086477B CN201610665191.2A CN201610665191A CN106086477B CN 106086477 B CN106086477 B CN 106086477B CN 201610665191 A CN201610665191 A CN 201610665191A CN 106086477 B CN106086477 B CN 106086477B
- Authority
- CN
- China
- Prior art keywords
- antimony
- antimony concentrate
- spray gun
- furnace
- concentrate
- 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.)
- Active
Links
Classifications
-
- 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
Abstract
The invention discloses the smelting systems of antimony concentrate, comprising: drying device, ball-milling device, oxidizing semlting furnace and side-blown reduction furnace, drying device have antimony concentrate entrance and dry antimony concentrate outlet；Ball-milling device has dry antimony concentrate entrance and the outlet of antimony concentrate powder, and dry antimony concentrate entrance is connected with dry antimony concentrate outlet；Oxidizing semlting stove has the high antimony slag outlet of flux entrance, antimony concentrate powder spray gun, Fuel lance, liquid and exhanst gas outlet, flux entrance is arranged on the furnace roof of oxidizing semlting furnace, antimony concentrate powder spray gun and Fuel lance are arranged on the side wall of oxidizing semlting furnace, and antimony concentrate powder spray gun is connected with the outlet of antimony concentrate powder；Side-blown reduction stove has the high antimony slag entrance of liquid, the outlet of liquid antimony and reducing slag outlet, and the high antimony slag entrance of liquid is connected with the high antimony slag outlet of liquid.It uses the smelting system that can complete the oxidizing semlting of antimony concentrate with single step, and then significantly improves antimony concentrate efficiency, reduce energy consumption.
Description
Technical field
The invention belongs to field of metallurgy, specifically, the present invention relates to the smelting systems of antimony concentrate.
Background technique
Antimony metallurgy is divided into pyrogenic process and wet process, and fire metallurgy process has comparative advantage in antimony metallurgical production at present, reaches 95%
More than；And the process flow of " the thick antimony oxide reduction smelting in reverberatory furnace of antimony concentrate blast furnace volatile smelting-" is current China
The basic technology of most antimony smelteries.Stibium blast furnace volatile smelting technique have adaptability to raw material is strong, processing capacity is larger,
The advantages of being easy to mechanically actuated, but the special operation condition of " low column, the thin bed of material, high coke yield, High-temperature furnace top " also determines this
For technique there are energy consumption height, metal recovery rate is low, returns to the defects such as product rate is high, and direct yield is low.
Therefore, antimony metallurgical technology is still further improved at present.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, of the invention
One purpose is to propose a kind of smelting system with efficient, energy-efficient antimony concentrate.
According to an aspect of the present invention, the invention proposes a kind of smelting system of antimony concentrate, the system comprises:
Drying device, the drying device have antimony concentrate entrance and dry antimony concentrate outlet；
Ball-milling device, the ball-milling device have dry antimony concentrate entrance and the outlet of antimony concentrate powder, the dry antimony concentrate
Entrance is connected with the dry antimony concentrate outlet；
Oxidizing semlting furnace, the oxidizing semlting stove have flux entrance, antimony concentrate powder spray gun, Fuel lance, the high antimony of liquid
Slag outlet and exhanst gas outlet, the flux entrance be arranged on the furnace roof of the oxidizing semlting furnace, the antimony concentrate powder spray gun and
Fuel lance is arranged on the side wall of the oxidizing semlting furnace, and the antimony concentrate powder spray gun is connected with antimony concentrate powder outlet；
Side-blown reduction furnace, the side-blown reduction stove have the high antimony slag entrance of liquid, the outlet of liquid antimony and reducing slag outlet, institute
The high antimony slag entrance of liquid is stated to be connected with the high antimony slag outlet of the liquid.
Using the smelting system of the antimony concentrate of the above embodiment of the present invention, drying device and ball-milling device are advanced with by antimony
Concentrate is processed into powder, and antimony concentrate powder is sprayed into the molten bath in oxidizing semlting through side-blown spray gun high speed, while using side-blown
Mode sprays into oxygen-enriched and coal dust, carries out oxidizing semlting, finally carries out reduction melting and obtains liquid antimony.Using the system to antimony concentrate
It is smelted, oxygen-enriched, coal dust, antimony concentrate powder blast in molten bath through furnace body two sides spray gun, antimony concentrate powder, pulverized coal particle and air bubble
It is in high degree of dispersion shape in slag.Gas due to blasting molten bath has input very big power of agitator to high-temperature fusant, makes molten bath
Strong agitation, enhances the mass-and heat-transfer process between gas-liquid-solid, and then accelerates the oxidation sweetening reaction of antimony concentrate, Yi Jimei
The burning of powder.Therefore, antimony concentrate can be significantly improved using the smelting system of the antimony concentrate of the above embodiment of the present invention and smelts effect
Rate reduces smelting cost.
In addition, the smelting system of antimony concentrate according to the above embodiment of the present invention can also have following additional technology special
Sign:
In some embodiments of the invention, the antimony concentrate powder spray gun is immersion side-blown spray gun.
In some embodiments of the invention, it is molten that being located at for the oxidizing semlting furnace is arranged in the immersion side-blown spray gun
On the side wall of scum layer, it is preferably placed on the side wall of molten bath slag blanket lower part.
In some embodiments of the invention, the Fuel lance is drawable type spray gun, the interior spray of the drawable type spray gun
Pipe is suitable for Coal powder spray, and outer nozzle is suitable for spraying oxygen-enriched.
In some embodiments of the invention, the Fuel lance and the antimony concentrate powder spray gun be not in same level
It is interior.
In some embodiments of the invention, the Fuel lance is located at the lower section of the antimony concentrate powder spray gun.
In some embodiments of the invention, the antimony concentrate powder spray gun is apart from least 0.4 meter of molten bath slag blanket surface.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the smelting system of antimony concentrate according to an embodiment of the invention.
Fig. 2 is the flow chart of the smelting process of antimony concentrate according to an embodiment of the invention.
Fig. 3 is the schematic diagram of the smelting antimony concentrate of oxidizing semlting furnace in smelting system according to an embodiment of the invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
According to an aspect of the present invention, the invention proposes a kind of smelting systems of antimony concentrate.It is detailed below with reference to Fig. 1
The smelting system of the antimony concentrate of the specific embodiment of the invention is described.
The system of the antimony concentrate of specific embodiment includes: drying device 10, ball-milling device 20, oxidizing semlting according to the present invention
Furnace 30 and side-blown reduction furnace 40.
Wherein, drying device 10 has antimony concentrate entrance 11 and dry antimony concentrate outlet 12.Drying device 10 is suitable for antimony
Concentrate is dried, to obtain dry antimony concentrate.
Ball-milling device 20 has a dry antimony concentrate entrance 21 and antimony concentrate powder outlet 22, dry antimony concentrate entrance 21 with it is dry
Antimony concentrate outlet connected 12.Dry antimony concentrate is carried out ball-milling treatment by ball-milling device 20, to obtain antimony concentrate powder.
Oxidizing semlting furnace 30 has the high antimony slag outlet 34 of flux entrance 31, antimony concentrate powder spray gun 32, Fuel lance 33, liquid
With exhanst gas outlet 35, flux entrance 31 is arranged on the roof of oxidizing semlting furnace 30, antimony concentrate powder spray gun 32 and Fuel lance 33
It is arranged on the side wall of oxidizing semlting furnace 30, antimony concentrate powder spray gun 32 is connected with antimony concentrate powder outlet 22.It is possible thereby to utilize oxygen
Change smelting furnace 30 and oxidizing semlting is carried out to antimony concentrate powder, to obtain the high antimony slag of liquid, wherein by antimony concentrate powder, oxygen-enriched and coal
Powder sprays into molten bath from the side wall of oxidizing semlting furnace, and flux is added from the furnace roof of oxidizing semlting furnace.
Side-blown reduction furnace 40 has the high antimony slag entrance 41 of liquid, liquid antimony outlet 42 and reducing slag outlet 43, the high antimony of liquid
Slag entrance 41 is connected with the high antimony slag outlet 34 of liquid.Side-blown reduction furnace 40 is suitable for carrying out the high antimony slag of liquid in side-blown reduction furnace
Reduction melting, to obtain liquid antimony and reducing slag.
According to a particular embodiment of the invention, smelting is carried out to antimony concentrate using the smelting system of the antimony concentrate of above-described embodiment
Refining, can specifically carry out according to the following steps:
(1) using antimony concentrate is dried in drying device 10, to obtain dry antimony concentrate；It is filled using ball milling
It sets 20 pairs of dry antimony concentrates and carries out ball-milling treatment, to obtain antimony concentrate powder.This completes the smelting pre-treatments of antimony concentrate.
(2) oxidizing semlting is carried out to antimony concentrate powder using oxidizing semlting furnace 30, to obtain the high antimony slag of liquid, wherein will
Antimony concentrate powder sprays into molten bath from the antimony concentrate powder spray gun 32 for the side wall for being located at oxidizing semlting furnace, by oxygen-enriched and coal dust from positioned at oxygen
The Fuel lance 33 for changing the side wall of smelting furnace sprays into molten bath, and flux is added from the flux entrance 31 of the roof of oxidizing semlting furnace 30
Enter.
(3) the high antimony slag of liquid that the 30 internal oxidition melting of oxidizing semlting furnace obtains reduction is carried out using side-blown reduction furnace 40 to melt
Refining, to obtain liquid antimony and reducing slag.
Using the smelting system of the antimony concentrate of the above embodiment of the present invention, antimony concentrate is processed into particle in advance, and by antimony
Concentrate powder sprays into the molten bath in oxidizing semlting through side-blown spray gun high speed, while spraying into oxygen-enriched and coal dust using side-blown mode, into
Row oxidizing semlting finally carries out reduction melting and obtains liquid antimony.Antimony concentrate is smelted using the system, oxygen-enriched, coal dust, antimony
Concentrate powder blasts in molten bath through furnace body two sides spray gun, and antimony concentrate powder, pulverized coal particle and air bubble are in high degree of dispersion shape in slag.
Gas due to blasting molten bath has input very big power of agitator to high-temperature fusant, stirs molten bath strongly, enhances gas-liquid-solid
Between mass-and heat-transfer process, and then accelerate antimony concentrate oxidation sweetening reaction and coal dust burning.Therefore, using this
The smelting system of the antimony concentrate of invention above-described embodiment can significantly improve antimony concentrate efficiency, reduce smelting cost.
As a result, using the smelting system of the antimony concentrate of the above embodiment of the present invention, the volatile smelting of more existing antimony concentrate
Technique eliminates volatilisation step, can a step realize antimony concentrate smelting.This method avoid the volatilization carried out to antimony concentrate, behaviour
Make more environment-friendly, efficiency height.This method has broken the constraint of traditional antimony concentrate smelting process, easy for antimony concentrate
The characteristics of volatilization, a kind of method for opening completely new single step smelting antimony concentrate.The system can significantly improve antimony concentrate smelting
Refine efficiency and antimony recovery.
According to a particular embodiment of the invention, antimony concentrate powder spray gun is immersion side-blown spray gun, and according to the present invention
Specific embodiment, immersion side-blown spray gun be arranged in oxidizing semlting furnace on the side wall of molten bath slag blanket, be preferably placed at molten bath
On the side wall of slag blanket lower part.It is possible thereby to which antimony concentrate is effectively avoided to spray slag blanket surface, and then the volatilization of iron ore concentrate is effectively reduced,
To improve antimony recovery.
According to a particular embodiment of the invention, Fuel lance is drawable type spray gun, and the inner nozzle of drawable type spray gun is suitable for spray
Coal dust, outer nozzle are suitable for spraying oxygen-enriched.According to a particular embodiment of the invention, drawable type spray gun is that patent CN105737614 is disclosed
Spray gun, with outer nozzle, inner nozzle, with the grafting self-locking body and closeouts of self-locking closure function.
Coal dust and oxygen-enriched is sprayed into using drawable type spray gun as a result, when production can be effectively treated center fine coal blockage or
Abrasion, while in the case where not slagging, hot replacement rifle core also may be implemented, ensure working continuously for side-blown converter.Because logical
Often in the side-blown converter for handling cold burden when molten bath is lower than spray gun, making molten bath again not having spray gun is to need 8-12 hours, serious shadow
Ring operating efficiency.And use drawable type spray gun spray into coal dust and it is oxygen-enriched then it is possible to prevente effectively from occur above situation, and then effectively
Improve antimony concentrate efficiency.
According to a particular embodiment of the invention, Fuel lance and antimony concentrate powder spray gun be not in same level.According to this
The specific embodiment of invention, Fuel lance can be in oxidizing semlting furnace two sides, and multiple Fuel lances can be set in every side, for spraying
Enter oxygen-enriched and coal dust, for antimony concentrate powder spray gun equally in oxidizing semlting furnace two sides, multiple antimony concentrate powder spray guns are can be set in every side, are used
In penetrating antimony concentrate powder.All Fuel lances (drawable type spray gun) are located at the same level, (leaching of all antimony concentrate powder spray guns
Do not have formula side-blown spray gun) be located at same level, and all drawable type spray guns with all immersion side-blown spray guns not same
One horizontal plane.It is possible thereby to further increase the oxidation efficiency of antimony concentrate.
Specific example according to the present invention, it is preferable that Fuel lance is located at the lower section of antimony concentrate powder spray gun.Thus by fuel
The oxidizing atmosphere meeting slag blanket surface passage that the oxygen-enriched and coal dust that spray gun sprays into is formed, and then can be effectively to the antimony being located above
The antimony concentrate that concentrate powder spray gun sprays into provides the oxidation environment of high temperature, and then significantly improves the oxidizing semlting efficiency of antimony concentrate powder.
Specific example according to the present invention, antimony concentrate powder spray gun is apart from least 0.4 meter of molten bath slag blanket surface.It is possible thereby to have
Effect avoids the volatilization of antimony concentrate, significantly improves antimony recovery.
As a result, using the smelting system of the antimony concentrate of the above embodiment of the present invention, oxygen-enriched, coal dust, antimony concentrate powder are through furnace body
Two sides spray gun blasts in the slag blanket of molten bath simultaneously, and antimony concentrate powder, pulverized coal particle and air bubble are in high degree of dispersion shape in slag.Due to
The gas for blasting molten bath has input very big power of agitator to high-temperature fusant, stirs molten bath strongly, enhances between gas-liquid-solid
Mass-and heat-transfer process, and then accelerate antimony concentrate oxidation sweetening reaction and coal dust burning.Therefore, using the present invention
The smelting system of the antimony concentrate of above-described embodiment can significantly improve antimony concentrate efficiency, reduce smelting cost.
In order to facilitate the smelting system for the antimony concentrate for understanding the above embodiment of the present invention, below to smart to antimony using the system
The method that mine is smelted is described in detail.
The smelting process of the antimony concentrate of specific embodiment includes: to be done antimony concentrate using drying device according to the present invention
Dry processing, to obtain dry antimony concentrate；Dry antimony concentrate is subjected to ball-milling treatment using ball-milling device, to obtain antimony concentrate
Powder；Oxidizing semlting is carried out to antimony concentrate powder using oxidizing semlting furnace, to obtain the high antimony slag of liquid, wherein by antimony concentrate powder, richness
Oxygen and coal dust spray into molten bath from the side wall of oxidizing semlting furnace, and flux is added from the furnace roof of oxidizing semlting furnace；By the high antimony of liquid
Slag carries out reduction melting in side-blown reduction furnace, to obtain liquid antimony and reducing slag.
Antimony concentrate is processed into particle in advance by the smelting process of the antimony concentrate of the above embodiment of the present invention, and by antimony concentrate
Powder sprays into the molten bath in oxidizing semlting through side-blown spray gun high speed, while spraying into oxygen-enriched and coal dust using side-blown mode, carries out oxygen
Change melting, finally carries out reduction melting and obtain liquid antimony.Antimony concentrate is injected directly into molten bath slag by the way of side-blown by this method
Direct oxidation melting is carried out in layer, the volatile smelting technique of more existing antimony concentrate eliminates volatilisation step, can step realization antimony essence
The smelting of mine.This method avoid the volatilizations carried out to antimony concentrate, and operating environment is more friendly, and efficiency is high.This method is beaten
The constraint for having broken traditional antimony concentrate smelting process, a kind of method for opening completely new single step smelting antimony concentrate.This method can
To significantly improve antimony concentrate efficiency and antimony recovery.
In addition, being smelted using this method to antimony concentrate, oxygen-enriched, coal dust, antimony concentrate powder are blasted through furnace body two sides spray gun
In molten bath, antimony concentrate powder, pulverized coal particle and air bubble are in high degree of dispersion shape in slag.Due to blasting the gas in molten bath to high temperature
Melt has input very big power of agitator, stirs molten bath strongly, enhances the mass-and heat-transfer process between gas-liquid-solid, Jin Erjia
The oxidation sweetening reaction and the burning of coal dust of speed antimony concentrate.Therefore, using the smelting of the antimony concentrate of the above embodiment of the present invention
Smelting method can significantly improve antimony concentrate efficiency, reduce smelting cost.
Below with reference to the smelting process of the antimony concentrate of Fig. 2 the present invention is described in detail specific embodiment.
S100 smelts pre-treatment
According to a particular embodiment of the invention, antimony concentrate is dried, to obtain dry antimony concentrate；It will dry
Antimony concentrate carries out ball-milling treatment, to obtain antimony concentrate powder.Thus antimony concentrate being prepared into dry antimony concentrate powder can pass through
Antimony concentrate partial size is reduced, increases its contact area with oxidizing atmosphere, and then effectively improve oxidation sweetening efficiency.
According to a particular embodiment of the invention, the average grain diameter for the antimony concentrate powder that ball-milling treatment obtains can be micro- for 40-500
Rice.It is possible thereby to effectively prevent blocking spray gun.Specific example according to the present invention, the average grain diameter of antimony concentrate powder are preferably 75-
150 microns.Inventors have found that in the case where not blocking spray gun, if partial size is too small, solvent bonding between particle, so that it is unfavorable
In dispersion, and increase ball milling energy consumption；If partial size is excessive, oxidation sweetening reaction efficiency can be reduced, antimony recovery is low.Thus it controls
Rapid dispersion after the partial size can spray into convenient for spray gun, while quick oxidation sweetening reaction can also be improved, it improves and smelts effect
Rate and antimony recovery.
According to a particular embodiment of the invention, antimony concentrate usually contains mechanical water 10~20% or so, can be sent into fine coal and be
The dry kiln of fuel carries out preliminary hydro-extraction, is reduced to 8%-10% for physics is aqueous, improves the transportation performance of its material.It will tentatively do
It is dry after antimony concentrate be sent into steam dryer in carries out depth drying, make containing mechanical water 0.5% hereinafter, in turn complete be dried,
Obtain dry antimony concentrate.Antimony concentrate release mill after drying, granularity are 40-500 microns, preferably 75-150 microns.Steam is dry
Dry machine heat source stream is derived from the low-pressure steam after subsequent antimony concentrate oxidizing semlting furnace waste heat boiler steam-electric power, while steam is dry
Tail gas caused by dry is air and water vapour, is conducive to environmental protection, avoids environmental pollution.And tail is narrow-minded, and temperature is low,
It is handled using bagroom.
The side-blown oxidizing semlting of S200
According to a particular embodiment of the invention, oxidizing semlting is carried out to antimony concentrate powder using oxidizing semlting furnace, to obtain
The high antimony slag of liquid, wherein spray into antimony concentrate powder, oxygen-enriched and coal dust in molten bath from the side wall of oxidizing semlting furnace, by flux from oxygen
The furnace roof for changing smelting furnace is added.
According to a particular embodiment of the invention, the antimony concentrate powder obtained after pre-treatment is conveyed by gas, is sent into molten
It refines workshop antimony concentrate and receives storehouse.It is sprayed by pot-string type blowing device, the oxidizing melting after goat's horn distributor mean allocation
The antimony concentrate powder spray gun of furnace.Antimony concentrate powder spray gun is multiple, and is evenly distributed on the side wall of oxidizing semlting furnace in horizontal direction,
Antimony concentrate powder sprays into the molten bath slag blanket in furnace through side-blown spray gun high speed, and is in high degree of dispersion shape, and it is anti-to quickly complete oxidation sweetening
It answers.With concentrate spray gun interlaced arrangement there is pulverized coal gun (drawable type) simultaneously, according to thermal balance situation in furnace, coal injection and oxygen-enriched
Concurrent heating.The oxidation sweetening reaction efficiency of fine iron breeze can be significantly improved by the way of side-blown melting as a result, while can be with
Smelting degree is further increased, and then improves antimony recovery.
According to a particular embodiment of the invention, antimony concentrate powder is sprayed into oxidizing semlting furnace using immersion side-blown spray gun
Molten bath slag blanket lower part.It is possible thereby to which antimony concentrate is effectively avoided to spray slag blanket surface, and then the volatilization of iron ore concentrate is effectively reduced, thus
Improve antimony recovery.
According to a particular embodiment of the invention, slag blanket with a thickness of 0.5-1.5 meters.The slag blanket can be made by preparatory blow-on
Pond is formed.Control slag blanket with a thickness of 0.5-1.5 meters, the volatilization of antimony concentrate can be effectively prevented, and provide smelting for antimony concentrate
The environment of refining guarantees the Sb in antimony concentrate powder2S3After spraying into slag blanket, the oxygen sprayed into side-blown spray gun sufficiently reacts, and then improves
Antimony concentrate powder oxidizing semlting degree, and then improve antimony recovery.
In addition, thick slag blanket is taken to operate in oxidizing semlting furnace, the direct oxygen of antimony concentrate powder for spraying into molten bath deep can be made
Change.Therefore, most antimony is oxidized slag making, forms the high antimony slag of liquid, the high antimony slag of liquid is periodically discharged into from cinder notch side-blown
Reduction furnace carries out reduction dilution processing.Therefore, carry out oxidation smelting by the way that antimony concentrate to be injected directly into slag blanket from side wall, compared with from
Furnace roof is directly added into the smelting process of antimony concentrate, significantly reduces the volatilization of antimony trisulfide.
According to a particular embodiment of the invention, oxygen-enriched and coal dust is sprayed from the side wall of oxidizing semlting furnace using drawable type spray gun
Enter in molten bath, wherein the inner nozzle Coal powder spray of drawable type spray gun, outer nozzle spray are oxygen-enriched.According to a particular embodiment of the invention, may be used
Odd test spray gun is spray gun disclosed in patent CN105737614, with outer nozzle, inner nozzle, inserting with self-locking closure function
It is connected to latch fitting and closeouts.
Coal dust and oxygen-enriched is sprayed into using drawable type spray gun as a result, when production can be effectively treated center fine coal blockage or
Abrasion, while in the case where not slagging, replacement rifle core also may be implemented, ensure working continuously for side-blown converter.Because usually existing
The side-blown converter of cold burden is handled when molten bath is lower than spray gun, making molten bath again not having spray gun is to need 8-12 hours, seriously affects work
Industry efficiency.And drawable type spray gun is used to spray into coal dust and oxygen-enriched then it is possible to prevente effectively from above situation occurs, and then it effectively improves
Antimony concentrate efficiency.
According to a particular embodiment of the invention, oxygen-enriched and coal dust penetrating position is with the penetrating position of antimony concentrate powder not same
In one horizontal plane.According to a particular embodiment of the invention, oxygen-enriched and coal dust penetrating position can be in oxidizing semlting furnace two sides, often
Multiple drawable type spray guns can be set in side, and for spraying into oxygen-enriched and coal dust, the penetrating position of antimony concentrate powder is equally in oxidizing semlting
Furnace two sides, multiple immersion side-blown spray guns can be set in every side, for spraying into antimony concentrate powder.All drawable type spray guns are located at same
One horizontal plane, all immersion side-blown spray guns are located at same level, and all drawable type spray guns and all submergences
Formula side-blown spray gun is not in same level.It is possible thereby to further increase the oxidation efficiency of antimony concentrate.
Specific example according to the present invention, it is preferable that oxygen-enriched and coal dust the penetrating position for spraying into position and being lower than antimony concentrate powder
It sets.I.e. oxygen-enriched and coal dust penetrating position is located at below the penetrating position of antimony concentrate powder.Thus the oxygen-enriched and coal dust sprayed into is formed
Oxidizing atmosphere can the passage of slag blanket surface, and then effectively can provide the oxidation of high temperature to the antimony concentrate of the penetrating being located above
Environment, and then significantly improve the oxidizing semlting efficiency of antimony concentrate powder.
As a result, using the smelting process of the antimony concentrate of the above embodiment of the present invention, oxygen-enriched, coal dust, antimony concentrate powder are through furnace body
Two sides spray gun blasts in molten bath simultaneously, and antimony concentrate powder, pulverized coal particle and air bubble are in high degree of dispersion shape in slag.Due to blasting
The gas in molten bath has input very big power of agitator to high-temperature fusant, stirs molten bath strongly, enhances the biography between gas-liquid-solid
Matter diabatic process, and then accelerate the oxidation sweetening reaction and the burning of coal dust of antimony concentrate.Therefore, above-mentioned using the present invention
The smelting process of the antimony concentrate of embodiment can significantly improve antimony concentrate efficiency, reduce smelting cost.
According to a particular embodiment of the invention, using the oxidizing semlting method of antimony concentrate powder side-blown into molten bath thickness slag blanket,
Antimony concentrate can not largely volatilize substantially.Therefore, the oxygen material during oxidizing semlting is than being substantially controllable.Specifically,
Oxygen demand can turn to two kinds of situations of antimony oxide and antimony pentoxide according to antimony trisulfide total oxygen to calculate, and obtain oxygen
Blowing amount range.And specifically oxygen demand can according to practical condition the oxygen spray volume being calculated range
Interior carry out flexible modulation.Therefore, using the smelting process of the antimony concentrate of the above embodiment of the present invention, raw material dosage proportion more may be used
Control, and then can further reduce the cost.
As shown in figure 3, the reaction behind antimony concentrate powder penetrating molten bath can be divided into two stages according to the oxidation mechanism of antimony,
First stage is that antimony trisulfide oxidation sweetening forms antimony oxide, and second stage antimony oxide is oxidized to antimony pentoxide.Root
According to side-blown melting oxidation mechanisms key reaction are as follows:
Sb2S3+4.5O2(g)=Sb2O3+3SO2(g) (1)
Sb2O3+O2(g)=Sb2O5 (2)
Antimony oxide and gangue and flux slag making form clinker, which is the high antimony slag of liquid.The high antimony slag of liquid reaches a depthkeeping
After degree, side-blown reduction furnace is entered by warm sludge chute.A small amount of antimony matte that oxidizing semlting obtains periodically discharges.
The high-temperature flue gas that oxidizing semlting furnace generates leaks out in upper of furnace body and uptake flue, by CO second-time burning in flue gas
Afterwards, flue-gas temperature rises to 1200-1300 DEG C through waste heat boiler recovery waste heat, and institute's producing steam send steam drying after sending cogeneration
Machine.After waste heat boiler flue gas after cooling is handled by cottrell, flue gas send relieving haperacidity, and flue dust, which is had bad luck, to be returned side-blown reduction furnace and match
Material.
S300 side-blown reduction melting
According to a particular embodiment of the invention, the high antimony slag of liquid is subjected to reduction melting in side-blown reduction furnace, so as to
To liquid antimony and reducing slag.It is possible thereby to effectively obtain the higher antimony of purity.
Specific example according to the present invention, the high antimony slag of liquid from oxidizing semlting furnace pass through the warm sludge import of side-blown reduction furnace
Into in side-blown reduction furnace molten bath, while side-blown reduction furnace sprays into coal dust and antimony oxygen cigarette by being immersed in the side-blown spray gun in molten bath
Dirt, the interior reduction melting reaction that antimony oxygen occurs of side-blown reduction furnace is broken lower than 1% reducing slag releasing water below containing antimony, and liquid
Antimony is taken out after ingot of casting by being siphoned off the discharge of antimony mouth or liquid metal antimony flows directly into stibium trioxide furnace by hot antimony chute and carries out
Blowing, prepares product stibium trioxide powder.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
It can be combined in any suitable manner in a or multiple embodiment or examples.In addition, without conflicting with each other, the technology of this field
The feature of different embodiments or examples described in this specification and different embodiments or examples can be combined by personnel
And combination.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (6)
1. a kind of smelting system of antimony concentrate characterized by comprising
Drying device, the drying device have antimony concentrate entrance and dry antimony concentrate outlet；
Ball-milling device, the ball-milling device have dry antimony concentrate entrance and the outlet of antimony concentrate powder, the dry antimony concentrate entrance
It is connected with the dry antimony concentrate outlet；
Oxidizing semlting furnace, the oxidizing semlting stove have flux entrance, antimony concentrate powder spray gun, Fuel lance, the high antimony slag of liquid to go out
Mouth and exhanst gas outlet, the flux entrance are arranged on the furnace roof of the oxidizing semlting furnace, the antimony concentrate powder spray gun and fuel
Spray gun is arranged on the side wall of the oxidizing semlting furnace, and the antimony concentrate powder spray gun is connected with antimony concentrate powder outlet；
Side-blown reduction furnace, the side-blown reduction stove have the high antimony slag entrance of liquid, the outlet of liquid antimony and reducing slag outlet, the liquid
The high antimony slag entrance of state is connected with the high antimony slag outlet of the liquid；
Wherein,
The slag blanket that the oxidizing semlting furnace bottom has with a thickness of 0.5-1.5 meters；
The antimony concentrate powder spray gun is immersion side-blown spray gun, and the immersion side-blown spray gun is arranged in the oxidizing semlting furnace
On the side wall of molten bath slag blanket.
2. the smelting system of antimony concentrate according to claim 1, which is characterized in that the immersion side-blown spray gun setting exists
The oxidizing semlting furnace on the side wall of molten bath slag blanket lower part.
3. the smelting system of antimony concentrate according to claim 1, which is characterized in that the Fuel lance is drawable type spray
Rifle, the inner nozzle of the drawable type spray gun are suitable for Coal powder spray, and outer nozzle is suitable for spraying oxygen-enriched.
4. the smelting system of antimony concentrate according to claim 1, which is characterized in that the Fuel lance and the antimony concentrate
Powder spray gun is not in same level.
5. the smelting system of antimony concentrate according to claim 4, which is characterized in that the Fuel lance is located at the antimony essence
The lower section of miberal powder spray gun.
6. the smelting system of antimony concentrate according to claim 5, which is characterized in that described in the antimony concentrate powder spray gun distance
At least 0.4 meter of molten bath slag blanket surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610665191.2A CN106086477B (en) | 2016-08-12 | 2016-08-12 | The smelting system of antimony concentrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610665191.2A CN106086477B (en) | 2016-08-12 | 2016-08-12 | The smelting system of antimony concentrate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106086477A CN106086477A (en) | 2016-11-09 |
| CN106086477B true CN106086477B (en) | 2019-03-01 |
Family
ID=57456929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610665191.2A Active CN106086477B (en) | 2016-08-12 | 2016-08-12 | The smelting system of antimony concentrate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106086477B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107385237A (en) * | 2017-07-21 | 2017-11-24 | 中国恩菲工程技术有限公司 | The method of smelting of antimony concentrate |
| CN107674997A (en) * | 2017-11-07 | 2018-02-09 | 中国恩菲工程技术有限公司 | The device of antimony is enriched with from antimony oxide ore |
| CN108531758A (en) * | 2018-05-11 | 2018-09-14 | 永兴众德环保科技有限公司 | A kind of oxygen-enriched side-blowing smelting technology |
| CN110629041B (en) * | 2019-10-24 | 2024-03-19 | 中国恩菲工程技术有限公司 | Antimony oxide reduction smelting device |
| CN112981136B (en) * | 2021-04-16 | 2021-08-31 | 中国恩菲工程技术有限公司 | One-step zinc smelting method for spraying zinc concentrate in molten pool |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103114212A (en) * | 2013-02-01 | 2013-05-22 | 中国瑞林工程技术有限公司 | Device and method for smelting antimony |
| CN103173636A (en) * | 2013-03-06 | 2013-06-26 | 中南大学 | Antimony sulfide concentrate oxygen-enriched melting tank melting method |
| CN205974634U (en) * | 2016-08-12 | 2017-02-22 | 中国恩菲工程技术有限公司 | Smelting system of antimony concentrate |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101768672A (en) * | 2010-01-20 | 2010-07-07 | 桃江久通锑业有限责任公司 | Top-blown bath antimony smelting method and bath smelting furnace |
| CN101942575B (en) * | 2010-08-27 | 2011-12-14 | 河南豫光金铅股份有限公司 | Production method of continuous antimony smelting by bottom blowing bath smelting of stibnite and device thereof |
| CN101935766B (en) * | 2010-08-31 | 2012-06-27 | 河南豫光金铅股份有限公司 | Method and device for smelting jamesonite by bottom-blowing pool |
| CN103173637B (en) * | 2013-03-06 | 2014-09-03 | 中南大学 | Antimony sulfide concentrate oxygen-enriched melting tank melting method and side-blown furnace |
| CN104278162B (en) * | 2014-11-01 | 2016-08-17 | 中南大学 | A kind of antimonial lead complex materials selectivity fused bath smelting method |
| CN204918725U (en) * | 2015-08-13 | 2015-12-30 | 杨华锋 | Contain antimony material side -blown reduction system |
-
2016
- 2016-08-12 CN CN201610665191.2A patent/CN106086477B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103114212A (en) * | 2013-02-01 | 2013-05-22 | 中国瑞林工程技术有限公司 | Device and method for smelting antimony |
| CN103173636A (en) * | 2013-03-06 | 2013-06-26 | 中南大学 | Antimony sulfide concentrate oxygen-enriched melting tank melting method |
| CN205974634U (en) * | 2016-08-12 | 2017-02-22 | 中国恩菲工程技术有限公司 | Smelting system of antimony concentrate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106086477A (en) | 2016-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106086477B (en) | The smelting system of antimony concentrate | |
| CN106222451B (en) | The smelting process of antimony concentrate | |
| WO2015196887A1 (en) | Continuous side-blast tin smelting technique | |
| CN102230090B (en) | Lead-zinc integrated smelting furnace, and method for recovering lead and zinc | |
| CN103924100A (en) | Method and device for producing crude antimony by smelting antimony oxide-containing material in smelting furnace | |
| CN103993115B (en) | Dry integrated with reduction flash ironmaking equipment and iron smelting method | |
| CN111411234A (en) | Jet smelting electrothermal reduction furnace and method for smelting zinc-containing material | |
| CN105838837B (en) | Vanadium titano-magnetite or ilmenite reduction smelting system and method for smelting reduction of Ni | |
| CN106222442B (en) | A kind of sulfuric acid lead materials bottom blowing dual chamber interaction lead-smelting furnace device and lead-smelting method | |
| CN101839645B (en) | Equipment for recovering valuable metals from zinc-contained slag | |
| CN111411230A (en) | Suspension smelting electrothermal reduction furnace and method for smelting zinc concentrate | |
| CN205974634U (en) | Smelting system of antimony concentrate | |
| CN105420515B (en) | Process and device for melting laterite-nickel ore in oxygen-enriched reinforcement melting pool to obtain ferronickel | |
| CN106996695A (en) | A kind of metallurgical furnace | |
| CN105506299A (en) | Low-grade secondary lead smelting slag fuming furnace treatment system and method | |
| CN103352128A (en) | Direct zinc-coal mixing cyclone burning type zinc oxide production system | |
| CN102121788A (en) | Smelting furnace | |
| CN201729861U (en) | Lead and zinc integrated smelting furnace | |
| CN106319115A (en) | Method for quick repair of blast furnace hearth local damage | |
| CN212247151U (en) | Jet smelting electric heating reduction furnace | |
| CN201440037U (en) | Device for recovering valuable metal from zincy slag | |
| CN204625746U (en) | Adopt the device of winding-up shaft furnace production ferronickel water | |
| CN210122577U (en) | Smelting system of iron-based multi-metal mineral aggregate | |
| WO2015196889A1 (en) | Side-blast tin smelting apparatus | |
| CN103146936B (en) | Oxygen-rich redox furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |