CN104894397A - Method for adopting oxygen-enriched vortex bath smelting furnace to treat antimony-containing material - Google Patents
Method for adopting oxygen-enriched vortex bath smelting furnace to treat antimony-containing material Download PDFInfo
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- CN104894397A CN104894397A CN201510373886.9A CN201510373886A CN104894397A CN 104894397 A CN104894397 A CN 104894397A CN 201510373886 A CN201510373886 A CN 201510373886A CN 104894397 A CN104894397 A CN 104894397A
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Abstract
The invention discloses a method for adopting an oxygen-enriched vortex bath smelting furnace to treat antimony-containing sundry. The oxygen-enriched vortex bath smelting furnace comprises a furnace body and multiple spray guns, a furnace cavity is arranged in the furnace body which is provided with a feeding port, an antimony-oxygen smoke outlet and a slag outlet, the furnace cavity has a round cross section, multiple spray gun inserting holes are distributed in the side wall of the furnace body at intervals along the circumferential direction of the furnace body, and the spray guns are inserted into the spray gun inserting holes and deviate from circle center of the round cross section of the furnace cavity along a same direction. The method includes the following steps: placing the antimony-containing material and reducing coal into the furnace cavity through the feeding port, wherein the antimony-containing material includes antimony-containing lead smelting slag; adopting the spray guns to spray a fuel medium into the furnace cavity, wherein the antimony-containing material reacts in the furnace cavity to generate smelting slag, wet lead and antimony-oxygen smoke; discharging the smelting slag from the slag outlet, discharging the wet lead from a lead discharging port, and discharging the antimony-oxygen smoke from the antimony-oxygen smoke outlet. The method has the advantages of low energy consumption and good smelting effect.
Description
Technical field
The present invention relates to a kind of nonferrous metallurgy method, relate to a kind of method adopting oxygen enrichment vortex bath smelting furnace process antimong-containing material particularly.
Background technology
It is that the material joined in stove from charging opening easily swims in melt top layer that bath smelting metallurgical furnace in correlation technique exists a commonplace problem, fully cannot participate in melt tank reaction, affect production efficiency, sometimes even can not normally produce.Such as, in the side-blown smelting technique in correlation technique, side-blown spray gun is jetted towards the center of body of heater, jets to produce certain mixing effect to melt in stove, but the material that top adds easily swims in bath surface, is difficult to enter melt and fully participates in reaction.Although the top blow smelting technology in correlation technique can stir molten bath, but it is too violent that the principle of work of top-blown spray gun makes melt seethe up and down in stove, in order to avoid splash top blast stove must increase body of heater height, thus cause body of heater constructional difficulties, improve the cost of body of heater, spray gun.
Summary of the invention
The present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, the present invention proposes a kind of method adopting bath smelting furnace process antimong-containing material, has the advantage that energy consumption is low, Smelting Effect is good.
According to the method for the employing oxygen enrichment vortex bath smelting furnace process antimong-containing material of the embodiment of the present invention, described bath smelting furnace comprises: body of heater and multiple spray gun, in described body of heater, there is furnace chamber, described body of heater has charging opening, the outlet of antimony oxygen flue dust and slag notch, described furnace chamber has circular cross section, and the sidewall of described body of heater is provided with along the circumference of described body of heater multiple spray gun jacks spaced apart; Described spray gun is inserted in described spray gun jack and multiple described spray gun departs from the center of circle of the circular cross section of described furnace chamber in the same direction; Described method comprises the steps: antimong-containing material and reduction coal to drop into described furnace chamber by described charging opening; Described antimong-containing material comprises the plumbous metallurgical slag containing antimony; Adopt described spray gun to be injected to by fuel medium in described furnace chamber, described antimong-containing material reacts to generate slag, lead bullion and antimony oxygen flue dust in described furnace chamber; Described slag is discharged from described slag notch, and described lead bullion is discharged from putting plumbous mouth, and described antimony oxygen flue dust is discharged from described antimony oxygen flue dust outlet.
According to the method for the employing oxygen enrichment vortex bath smelting furnace process antimong-containing material of the embodiment of the present invention, energy consumption is low, and Smelting Effect is good, specific capacity is high, operational use time and the operation life of body of heater are long, are conducive to reducing body of heater height, reduce body of heater and build difficulty and laid down cost.
In some embodiments of the invention, to depart from the angle in the center of circle of the circular cross section of described furnace chamber identical for the blowing direction of multiple described spray gun.
In a particular embodiment of the present invention, the angle between the center of circle of the winding-up end of described spray gun and the circular cross section of described furnace chamber between line and the blowing direction of this spray gun is in the scope of 5-60 degree.
Preferably, described multiple spray gun is evenly arranged along the circumference of described furnace chamber.
In some embodiments of the invention, described body of heater is provided with overfiren air port, and the air outside described body of heater enters in described furnace chamber from described overfiren air port.
Preferably, the winding-up end of described spray gun extend in the molten bath of described furnace chamber bottom.
According to some embodiments of the present invention, described spray gun dips down relative to horizontal direction and tiltedly arranges.
In a preferred embodiment of the invention, the bottom surface of described furnace chamber is segment-shaped.
In some embodiments of the invention, described body of heater comprises roof, sidewall and is positioned at the cupola well of bottom, and the flame retardant coating of described sidewall and described cupola well is magnesia chrome brick layer, and the flame retardant coating of described roof is the refractory steel fiber ramming bed of material or described roof is membrane wall.
Further, the outside of the flame retardant coating of described sidewall is provided with copper water jacket.
In some embodiments of the invention, putting plumbous mouth described in is siphon lead tap.
In some embodiments of the invention, containing zinc in described slag, and zinc is reclaimed in described slag reduction volatilization.
Accompanying drawing explanation
Fig. 1 is the axial cross-sectional schematic of the oxygen enrichment vortex bath smelting furnace according to the embodiment of the present invention.
Fig. 2 is the cross sectional representation of the oxygen enrichment vortex bath smelting furnace according to the embodiment of the present invention.
Reference numeral:
Oxygen enrichment vortex bath smelting furnace 100, body of heater 1, furnace chamber 10, roof 11, sidewall 12, cupola well 13, put plumbous mouth 14, slag notch 15, charging opening 16, antimony oxygen flue dust outlet 17, insulation burner mouth 18, visit cinder notch 19,
Spray gun 2, copper water jacket 3, skirt 4, body of heater basis 5, pre-embedded bolt 6.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection or each other can communication; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
Describe the method processing antimong-containing material according to the employing oxygen enrichment vortex bath smelting furnace 100 of the embodiment of the present invention in detail below with reference to Fig. 1 and Fig. 2, wherein antimong-containing material can be the material that antimonial lead slag etc. contains antimony.
According to the oxygen enrichment vortex bath smelting furnace 100 of the embodiment of the present invention, comprising: body of heater 1 and multiple spray gun 2, wherein have furnace chamber 10 in body of heater 1, furnace chamber 10 has circular cross section, when bath smelting furnace 100 works, is contained with melt to form molten bath in furnace chamber 10.
The sidewall 12 of body of heater 1 is provided with along the circumference of body of heater 1 multiple spray gun jacks spaced apart.Particularly, body of heater 1 comprises roof 11, sidewall 12 and is positioned at the cupola well 13 of diapire, and cupola well 13 and the sidewall 12 of body of heater 1 have flame retardant coating respectively, and flame retardant coating can be piled up by refractory brick and form.Thus being formed as circular due to the cross section of furnace chamber 10, body of heater 1 expands when being heated evenly, does not have area of stress concentration, can avoid occurring falling brick phenomenon, the stability of raising body of heater 1, the normal use of guarantee bath smelting furnace 100.
In concrete example of the present invention, the sidewall 12 of body of heater 1 and the flame retardant coating of cupola well 13 are magnesia chrome brick layer, and the flame retardant coating of the roof 11 of body of heater 1 is the refractory steel fiber ramming bed of material or roof 11 is membrane wall.
Spray gun 2 is inserted in spray gun jack and multiple spray gun 2 departs from the center of circle of the circular cross section of furnace chamber 10 in the same direction.Preferably, multiple spray gun 2 is evenly arranged along the circumference of furnace chamber 10.The center of circle that wherein each spray gun 2 departs from the circular cross section of furnace chamber 10 refers between line L1 between the center of circle of the winding-up end of spray gun 2 and the circular cross section of the furnace chamber 10 and emission direction A of spray gun 2 has angle theta, in other words, the emission direction of each spray gun 2 departs from the center of circle of the circular cross section of furnace chamber 10, and each spray gun 2 sprays medium with the direction that the center of circle of the circular cross section with furnace chamber 10 is angled.The center of circle that the multiple spray guns 2 simultaneously described in the present invention depart from the circular cross section of furnace chamber 10 in the same direction refers to multiple spray gun 2 and to depart from along clockwise direction or multiple spray gun 2 departs from the counterclockwise direction.
Body of heater 1 is also provided with charging opening 16, slag notch 15 and antimony oxygen flue dust outlet 17, charging opening 16 and antimony oxygen flue dust outlet 17 can be located on the roof 11 of body of heater 1, and slag notch 15 can be located on the sidewall 12 of body of heater 1.Wherein in the illustrated example shown in fig. 2, in order to improve the speed of slagging tap, the sidewall 12 of body of heater 1 can be provided with two spaced slag notches 15 in the vertical direction.
In concrete example of the present invention, the height of body of heater 1 is about 4 ~ 15m, and the internal diameter of furnace chamber 10 is 1 ~ 8m, and each spray gun 2 is 1 ~ 2m with the distance of furnace bottom.
Process the method for antimong-containing material according to the employing oxygen enrichment vortex bath smelting furnace 100 of the embodiment of the present invention, comprise the steps:
Antimong-containing material and reduction coal are dropped into furnace chamber by charging opening, and wherein reduction coal can be broken coal; According to embodiments of the invention, antimong-containing material mainly refers to the plumbous metallurgical slag containing antimony, and can arrange in pairs or groups some other containing antimony raw material;
Adopt spray gun to be injected in furnace chamber by fuel medium, antimong-containing material reacts to generate slag, lead bullion and antimony oxygen flue dust in furnace chamber; Slag is discharged from slag notch, and lead bullion is discharged from putting plumbous mouth 14, and antimony oxygen flue dust is discharged from the outlet of antimony oxygen flue dust.Wherein fuel medium can be the mixture of oxygen enrichment and fuel, and fuel can be Sweet natural gas, coal gas and/or coal dust.
Specifically, antimong-containing material can pass through automatic batching system, joins in furnace chamber 10 by charging opening 16, and fuel medium is injected in furnace chamber and carries out combustion heat release by spray gun 2.
A small amount of reduction coal can be allocated into for controlling stove internal oxidition reduction atmosphere from charging opening 16 simultaneously.Bath temperature can adjust and control at 1200 ~ 1400 DEG C.
Because multiple spray gun 2 departs from the center of circle of the circular cross section of furnace chamber 10 in the same direction, therefore, it is possible to make to produce certain limit in furnace chamber 10 to horizontally rotate region, thus make the melt composition vortex motion in furnace chamber 10, that is, molten bath forms whirlpool region, antimong-containing material and reduction coal are rolled in molten bath rapidly and fusing and reduction reaction occur, particularly all spray guns 2 spray into furnace heat and converge at central zone in stove, and the burn-off rate of antimong-containing material is accelerated.
The slag that melting generates is discharged from slag notch 15, the antimony oxygen flue dust that reaction generates is discharged from antimony oxygen flue dust outlet 17, the lead bullion that reaction generates is put plumbous mouth 14 by lower portion of furnace body and is released, and puts plumbous mouth 14 and can adopt siphon lead tap, also can adopt other existing escape orifice forms.Adopt the method process antimong-containing material of the embodiment of the present invention, the lead tolerance of the slag obtained, containing antimony amount all lower than 2%, if wherein also there is recovery value containing a certain amount of zinc element, then can reduction volatilization recovery zinc further.
Before material is put into furnace chamber 10, generally need to allocate quartzite or Wingdale adjustment slag type into according to material main component, reduce slag melting point and viscosity, reduce melt tank reaction temperature.
The antimony oxygen flue dust of discharging from antimony oxygen flue dust outlet 17 can be drained into the smelting furnace of subsequent processing and carry out melting, and to produce needle antimony, flue dust and slag, this slag can be put into bath smelting furnace from charging opening 16 containing antimony raw material as other and carry out melting.Needle antimony sends to refining.The flue dust of discharging recirculation can be sent in antimony oxygen flue dust smelting furnace and carries out melting.
Process the method for antimong-containing material according to the employing oxygen enrichment vortex bath smelting furnace 100 of the embodiment of the present invention, by adopting bath smelting furnace 100, tool has the following advantages:
1) because multiple spray gun 2 departs from the center of circle of the circular cross section of furnace chamber 10 in the same direction, therefore, it is possible to make to produce certain limit in furnace chamber 10 to horizontally rotate region, thus make the melt composition vortex motion in furnace chamber 10, the antimong-containing material added and reduction coal can be involved in melt rapidly, abundant participation reaction, energy consumption is low, and Smelting Effect is good, can improve the processing power of body of heater 1.
2) compared with side-blown converter, multiple spray gun 2 all points to the central zone of furnace chamber 10, higher temperature can be produced at furnace chamber 10 center, be conducive to material to melt rapidly, greatly improve specific capacity, wherein specific capacity refers to every square meter hearth area and processes how many tons of materials every day, general side-blown converter 25 tons of/day square meters, and the bath smelting furnace 100 in the present invention can reach 25 ~ 80 tons of/day square meters.
3) compared with side-blown converter, the cross section of furnace chamber 10 is formed as circular, the stress ratio that in furnace chamber 10, refractory brick bears can be made comparatively even, greatly avoid arch brick, fall brick phenomenon, substantially prolongs body of heater 1 operational use time and operation life.
4) compared with top blast stove, multiple spray gun 2 disperses winding-up that melt in furnace chamber 10 can be avoided to produce too violent seething, and prevents splash, and is conducive to reducing body of heater 1 height, reduces body of heater 1 and builds difficulty and laid down cost.
In brief, process the method for antimong-containing material according to the employing oxygen enrichment vortex bath smelting furnace 100 of the embodiment of the present invention, energy consumption is low, Smelting Effect is good, and specific capacity is high, and operational use time and the operation life of body of heater 1 are long, be conducive to reducing body of heater 1 height, reduce body of heater 1 and build difficulty and laid down cost.
Preferably, body of heater 1 is provided with overfiren air port (scheming not shown), and the air outside body of heater 1 enters in furnace chamber 10 from overfiren air port.Thus by being provided with overfiren air port, be conducive to burning again of inflammable gas in stove (as carbon monoxide), the abundant after-flame of inflammable gas produced in stove can be made, and then can environmental be reduced and improve production system security.
In concrete example of the present invention, the winding-up end of spray gun 2 extend in the molten bath of furnace chamber 10 bottom.Such as the winding-up end of each spray gun 2 can be immersed in 0.5 ~ 1.5m under molten bath, thus can ensure that molten bath can be formed with whirlpool region further.
According to some embodiments of the present invention, the angle that the blowing direction of multiple spray gun 2 departs from the center of circle of the circular cross section of furnace chamber 10 is identical.Thus ensure that the melt in furnace chamber 10 can form vortex motion further.Particularly, the angle theta between the center of circle of the winding-up end of spray gun 2 and the circular cross section of furnace chamber 10 between line L1 and the blowing direction A of this spray gun 2 is in the scope of 5-60 degree.Preferably, angle theta is 15 degree.
In some embodiments of the invention, angle theta is adjustable.That is, the deflection angle of each spray gun 2 is adjustable.Wherein by the angle of change spray gun jack and the deflection angle of each spray gun 2 of adjustable.Particularly, each spray gun jack can be located on one block of insulating brick, and the insulating brick being provided with spray gun jack is called muzzle brick, in actual production process, if need the deflection angle adjusting spray gun 2, only needs the muzzle brick changing corresponding position.Thus due to angle adjustable, according to the change of the purposes of body of heater 1 or material change adjustment winding-up angle, body of heater 1 can be run under optimum working parameter, adds the scope of application and the production chains of body of heater 1.
As shown in Figure 2, according to a particular embodiment of the invention, each spray gun 2 dips down relative to horizontal direction and tiltedly arranges.That is, each spray gun jack downward-sloping extension on direction from outside to inside.Thus by making the downward-sloping setting of each spray gun 2, certain effect of seething up and down can also be caused, be conducive to melt in furnace chamber 10 and react more fast, fully, the processing power of body of heater 1 can be improved further.
In some embodiments of the invention, as shown in Figure 2, the bottom surface of furnace chamber 10 is segment-shaped.That is, the bottom surface of furnace chamber 10 is formed as recessed segment-shaped downwards.Thus the stress ratio that the furnace bottom of segment-shaped makes refractory brick in stove bear is comparatively even, greatly avoids arch brick, falls brick phenomenon, substantially prolongs body of heater 1 operational use time and operation life.
As depicted in figs. 1 and 2, according to some embodiments of the present invention, the outside of the flame retardant coating of sidewall 12 is provided with copper water jacket 3.By being provided with copper water jacket 3, the temperature of the flame retardant coating of the sidewall 12 of body of heater 1 can be reduced, extending the work-ing life of the flame retardant coating of the sidewall 12 of body of heater 1, thus extend the work-ing life of body of heater 1.
In the figure 2 example, body of heater 1 also comprises skirt 4 and body of heater basis 5, and skirt 4 is connected with the pre-embedded bolt 6 on body of heater basis 5, and body of heater 1 is fixed on skirt 4, thus when effectively can prevent bath smelting body of heater 1 displacement and rock.
As shown in Figure 2, the roof 11 of body of heater 1 is also provided with and visits cinder notch 19 and insulation burner mouth 18, visiting cinder notch 19 is thief hatch, and insulation burner mouth 18 is for installing insulation burner.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary indirect contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this specification sheets, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification sheets or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (12)
1. one kind adopts the method for oxygen enrichment vortex bath smelting furnace process antimong-containing material, it is characterized in that, described bath smelting furnace comprises: body of heater and multiple spray gun, in described body of heater, there is furnace chamber, described body of heater has charging opening, the outlet of antimony oxygen flue dust and slag notch, described furnace chamber has circular cross section, and the sidewall of described body of heater is provided with along the circumference of described body of heater multiple spray gun jacks spaced apart; Described spray gun is inserted in described spray gun jack and multiple described spray gun departs from the center of circle of the circular cross section of described furnace chamber in the same direction;
Described method comprises the steps:
Antimong-containing material and reduction coal are dropped into described furnace chamber by described charging opening; Described antimong-containing material comprises the plumbous metallurgical slag containing antimony;
Adopt described spray gun to be injected to by fuel medium in described furnace chamber, described antimong-containing material reacts to generate slag, lead bullion and antimony oxygen flue dust in described furnace chamber; Described slag is discharged from described slag notch, and described lead bullion is discharged from putting plumbous mouth, and described antimony oxygen flue dust is discharged from described antimony oxygen flue dust outlet.
2. the method for employing oxygen enrichment vortex bath smelting furnace process antimong-containing material according to claim 1, is characterized in that, the angle that the blowing direction of multiple described spray gun departs from the center of circle of the circular cross section of described furnace chamber is identical.
3. the method for employing oxygen enrichment vortex bath smelting furnace process antimong-containing material according to claim 1, it is characterized in that, the angle between the center of circle of the winding-up end of described spray gun and the circular cross section of described furnace chamber between line and the blowing direction of this spray gun is in the scope of 5-60 degree.
4. the method for employing oxygen enrichment vortex bath smelting furnace process antimong-containing material according to claim 1, it is characterized in that, described multiple spray gun is evenly arranged along the circumference of described furnace chamber.
5. the method for employing oxygen enrichment vortex bath smelting furnace process antimong-containing material according to claim 1, it is characterized in that, described body of heater is provided with overfiren air port, and the air outside described body of heater enters in described furnace chamber from described overfiren air port.
6. the method for employing oxygen enrichment vortex bath smelting furnace process antimong-containing material according to claim 1, it is characterized in that, the winding-up end of described spray gun extend in the molten bath of described furnace chamber bottom.
7. the method for employing oxygen enrichment vortex bath smelting furnace process antimong-containing material according to claim 1, it is characterized in that, described spray gun dips down relative to horizontal direction and tiltedly arranges.
8. the method for employing oxygen enrichment vortex bath smelting furnace process antimong-containing material according to claim 1, it is characterized in that, the bottom surface of described furnace chamber is segment-shaped.
9. the method for employing oxygen enrichment vortex bath smelting furnace process antimong-containing material according to claim 1, it is characterized in that, described body of heater comprises roof, sidewall and is positioned at the cupola well of bottom, the flame retardant coating of described sidewall and described cupola well is magnesia chrome brick layer, and the flame retardant coating of described roof is the refractory steel fiber ramming bed of material or described roof is membrane wall.
10. the method for employing oxygen enrichment vortex bath smelting furnace process antimong-containing material according to claim 9, it is characterized in that, the outside of the flame retardant coating of described sidewall is provided with copper water jacket.
The method of 11. employing oxygen enrichment vortex bath smelting furnace process antimong-containing materials according to claim 1, is characterized in that, described in put plumbous mouth be siphon lead tap.
The method of 12. employing oxygen enrichment vortex bath smelting furnace process antimong-containing materials according to claim 1, is characterized in that, containing zinc in described slag, and zinc is reclaimed in described slag reduction volatilization.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112981117A (en) * | 2021-01-29 | 2021-06-18 | 济源市万洋冶炼(集团)有限公司 | Method for treating residual antimony-containing material after metal smelting |
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| CN103173637A (en) * | 2013-03-06 | 2013-06-26 | 中南大学 | Antimony sulfide concentrate oxygen-enriched melting tank melting method and side-blown furnace |
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| CN1584073A (en) * | 2004-06-09 | 2005-02-23 | 葫芦岛有色金属集团有限公司 | Zinc leaching-out slag treating process with vertical retort zinc refining residue as fuel |
| CN1594614A (en) * | 2004-06-29 | 2005-03-16 | 河南豫光金铅股份有限公司 | Direct reduction process for liquid high lead skim of oxygen bottom blowing furnace and special reducing furnace |
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| CN112981117A (en) * | 2021-01-29 | 2021-06-18 | 济源市万洋冶炼(集团)有限公司 | Method for treating residual antimony-containing material after metal smelting |
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