CN103014370A - Copper matte bottom blowing converting process and copper matte bottom blowing converting furnace - Google Patents

Copper matte bottom blowing converting process and copper matte bottom blowing converting furnace Download PDF

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Publication number
CN103014370A
CN103014370A CN2012105682614A CN201210568261A CN103014370A CN 103014370 A CN103014370 A CN 103014370A CN 2012105682614 A CN2012105682614 A CN 2012105682614A CN 201210568261 A CN201210568261 A CN 201210568261A CN 103014370 A CN103014370 A CN 103014370A
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blowing
copper matte
matte regulus
copper
converting furnace
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CN103014370B (en
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尉克俭
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China ENFI Engineering Corp
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China ENFI Engineering Corp
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Abstract

The invention discloses a copper matte bottom blowing converting process and a copper matte bottom blowing converting furnace. The copper matte bottom blowing converting process comprises the following steps: adding copper matte and non-alkaline flux into the copper matte bottom blowing converting furnace, blowing oxygen-containing gas continuously into melt in the copper matte bottom blowing converting furnace from the bottom of the copper matte bottom blowing converting furnace with a bottom blowing spraying gun, and discharging blister copper and converting residue from the copper matte bottom blowing converting furnace. According to the copper matte bottom blowing converting process and the copper matte bottom blowing converting furnace, continuous converting of the copper matte can be realized, less fume is produced, the SO2 concentration is stable, the environment is well protected, the efficiency is high, and the blister copper and sulfuric acid are low in production cost.

Description

Copper matte regulus bottom blowing blowing technology and copper matte regulus bottom blowing converting furnace
Technical field
The present invention relates to technical field of non-ferrous metallurgy, especially relate to copper matte regulus bottom blowing blowing technology and copper matte regulus bottom blowing converting furnace.
Background technology
The metallurgical method of copper is divided into pyrogenic process and wet method, the technical process of copper smelting by pyrometallurgy mainly is to obtain copper ore concentrates after the copper sulfide concentrate flotation, then in electric furnace, Flash Smelting Furnace and other smelting furnaces, carry out melting and obtain copper matte regulus, copper matte regulus obtains blister copper through blowing, the blister copper pyrorefining obtains anode copper, then carries out electrorefining and obtains electrolytic copper.At present, the PS converter is adopted in the blowing of copper matte regulus usually, and liquid copper matte regulus joins in the PS converter, from the oxygen blast of PS converter sidepiece, obtains blister copper and blowing slag.After one batch copper matte regulus blowing is finished, discharge blister copper and blowing slag, the copper matte regulus that then adds next batch blows.PS converter installation low vacancy pollution is serious, can only be interrupted operation, and efficient is low, and flue gas is unstable, and flue gas contains SO 2Concentration is low, and operating rate is low, and the flue gas processing cost is high, and PS converter operating rate is low, and the stove life-span is short.
Summary of the invention
The present invention one of is intended to solve the problems of the technologies described above at least to a certain extent or provides at least a kind of useful commerce to select.
For this reason, one object of the present invention is to propose a kind of copper matte regulus bottom blowing blowing technology, utilizes this copper matte regulus bottom blowing blowing technology, can realize the continuous converting of copper matte regulus, and the exhaust gas volumn of generation is few, compares flue gas with the PS converter and contains SO 2Concentration is higher and stable, good operational environment, and environmental protection is good, and efficient is high, and blister copper and gas washing in SA production cost are low.
Another object of the present invention is to propose a kind of copper matte regulus bottom blowing converting furnace that can realize above-mentioned technique.
To achieve these goals, propose a kind of copper matte regulus bottom blowing blowing technology according to the embodiment of first aspect present invention, described copper matte regulus bottom blowing blowing technology may further comprise the steps: copper matte regulus and non-basic flux are joined in the copper matte regulus bottom blowing converting furnace; Utilize in the melt of Bottom Blowing Ejection Gun in from the bottom of described copper matte regulus bottom blowing converting furnace to described copper matte regulus bottom blowing converting furnace and be blown into continuously oxygen-containing gas; With in described copper matte regulus bottom blowing converting furnace, discharge respectively blister copper and the blowing slag.
Copper matte regulus bottom blowing blowing technology according to the embodiment of the invention, be blown into continuously oxygen-containing gas by utilizing in the melt of Bottom Blowing Ejection Gun in from the bottom of described copper matte regulus bottom blowing converting furnace to the copper matte regulus bottom blowing converting furnace, can realize continuous converting, raise the efficiency, reduce cost, and exhaust gas volumn is few, flue gas concentration is stable, flue gas is overflowed few, and good environmental protection has reduced pollution.
According to one embodiment of present invention, described oxygen-containing gas is continuously blown in the blister copper layer of described melt.
In described copper matte regulus bottom blowing converting furnace, blister copper layer C1 is positioned at copper matte regulus layer C2 below, and by oxygen-containing gas being blown into continuously blister copper layer C1, described Bottom Blowing Ejection Gun need not to pass blister copper layer C1, can improve like this life-span of described Bottom Blowing Ejection Gun.In other words, by in blister copper layer C1, being blown into continuously oxygen-containing gas, can make described Bottom Blowing Ejection Gun need not to stretch into too many in the described body of heater (for example the length that stretches in the described body of heater of described Bottom Blowing Ejection Gun can be less than 50 millimeters), reduced the loss of described Bottom Blowing Ejection Gun, prolong the work-ing life of described copper matte regulus bottom blowing converting furnace, reduce the running cost of described copper matte regulus bottom blowing converting furnace.In addition, the amount that oxygen-containing gas enters slag blanket reduces, and avoids because copper matte regulus layer C2 is thinner, the oxygen-containing gas of described Bottom Blowing Ejection Gun ejection is easy to pass copper matte regulus layer C2 and enters slag blanket, thereby cause the oxygen-containing gas waste, can reduce the consumption of oxygen-containing gas, further reduce cost.
And, by in the blister copper layer, being blown into continuously oxygen-containing gas, can make the oxygen gesture in the blister copper layer the highest, and impurity element (S, As, Sb, Bi, the Pb etc.) oxidation that will be mixed in first in the blister copper layer removes, thereby obtain the higher blister copper of quality.Oxygen-containing gas can also be with blister copper as carrier, with Cu 2Cu among O, CuO form and the copper matte regulus layer C2 2S, CuS reaction generates Cu and SO 2, and generate FeO, SO with FeS reaction in the copper matte regulus layer 2And Cu.Described copper matte regulus bottom blowing blowing technology can reduce Fe 3O 4Growing amount, prevent Fe 3O 4The generation of precipitation and foamy slag.Because the Fe in the blowing slag 3O 4Content is low, and the viscosity of blowing slag is just low, and then can reduce Cu in the blowing slag 2The inclusion content of O (for example, the copper content of blowing slag can be less than 14%, even less than 10%).Namely by in described blister copper layer, being blown into continuously oxygen-containing gas, increase the oxygen-containing gas reaction times, improved the oxygen-containing gas utilization ratio, improved the blister copper quality.In addition, by in the blister copper layer, being blown into continuously oxygen-containing gas, the total amount of gas can be reduced to be blown in the unit time, thereby the risk of spray stove can be reduced.
By in described blister copper layer, being blown into continuously oxygen-containing gas, can make furnace temperature stable, overcome the excessive shortcoming of converter discontinuous running temperature fluctuation, be conducive to increase substantially the work-ing life of described copper matte regulus bottom blowing converting furnace, reduce refractory consumption rate and maintenance load, thereby reduced the copper metallurgy cost.And described copper matte regulus bottom blowing blowing technology can make the SO in exhaust gas volumn and the flue gas 2Stable content is balanced, and body of heater does not need frequent rotation, thereby air leak rate of air curtain is declined to a great extent, and has overcome the large shortcoming of converter discontinuous running exhaust gas volumn and smoke components fluctuation, is conducive to relieving haperacidity, has reduced the investment of sour factory and running cost.
According to one embodiment of present invention, described oxygen-containing gas is continuously blown in the copper matte regulus layer of described melt.By in described copper matte regulus layer, being blown into continuously oxygen-containing gas, can reduce the tilt angle of described body of heater, improve the capacity utilization of described body of heater, be convenient to safeguard described Bottom Blowing Ejection Gun.
According to one embodiment of present invention, described copper matte regulus is solid-state copper matte regulus.Copper matte regulus bottom blowing blowing technology according to the embodiment of the invention, can process solid-state copper matte regulus, and by in described copper matte regulus bottom blowing converting furnace, adding solid-state copper matte regulus, can be more easily, accurately the add-on of copper matte regulus is measured, and can more easily, accurately control the amount ratio of copper matte regulus and oxygen-containing gas (oxygen amount).Can control more easily converting process thus, so that the melt in the converting furnace exists with blister copper and blowing slag two-phase, there is not or almost do not have copper matte regulus layer (or claiming copper-nickel alloy sulfonium layer), by this control, the blowing effect be can further improve, the sulphur content of blister copper and the content of other impurity (such as arsenic, antimony, bismuth, lead etc.) further reduced.
Owing to can accurately control the amount ratio of copper matte regulus and oxygen-containing gas, thereby can avoid too much causing the blister copper peroxidation and forming foamy slag because oxygen-containing gas sprays into, can also avoid containing more impurity (such as arsenic, antimony, bismuth, lead etc.) so that subsequent disposal because oxygen-containing gas sprays into the very few blister copper that causes.And, by in described copper matte regulus bottom blowing converting furnace, adding solid-state copper matte regulus, can realize intermittent charging, namely can in described copper matte regulus bottom blowing converting furnace, add solid-state copper matte regulus discontinuously, can make thus described copper matte regulus bottom blowing blowing technology have stronger adaptability and wider range of application.
According to one embodiment of present invention, described solid-state copper matte regulus join in the described copper matte regulus bottom blowing converting furnace by feeding chute or charging chute or by airflow blow in described copper matte regulus bottom blowing converting furnace.Thus can be more easily, easily described solid-state copper matte regulus is joined in the described copper matte regulus bottom blowing converting furnace.
According to one embodiment of present invention, described solid-state copper matte regulus is added in the described copper matte regulus bottom blowing converting furnace continuously.Thus can the continuous treatment copper matte regulus, in conjunction with continuously oxygen blast, further improve processing efficiency.
According to one embodiment of present invention, described Bottom Blowing Ejection Gun is located at below the horizontal center line of body of heater of described copper matte regulus bottom blowing converting furnace.
According to one embodiment of present invention, the angle α between described Bottom Blowing Ejection Gun and the direction straight up at-120 degree to the scopes of+120 degree.
According to one embodiment of present invention, the angle α between described Bottom Blowing Ejection Gun and the direction straight up at-60 degree to the scopes of+60 degree.
According to one embodiment of present invention, the angle α between described Bottom Blowing Ejection Gun and the direction straight up at-30 degree to the scopes of+30 degree.
According to one embodiment of present invention, preferred, the angle α between described Bottom Blowing Ejection Gun and the direction straight up spends to the scopes of+20 degree-20.
According to one embodiment of present invention, described Bottom Blowing Ejection Gun and be orthogonal to angle β between the axial direction of described copper matte regulus bottom blowing converting furnace at-30 degree to the scopes of+30 degree.
According to one embodiment of present invention, described angle β is 0 degree.
According to one embodiment of present invention, described copper matte regulus bottom blowing blowing technology also comprises in described copper matte regulus bottom blowing converting furnace and adds anode scrap copper and/or useless composition brass.By in described copper matte regulus bottom blowing converting furnace, adding anode scrap copper and/or useless composition brass, need not to be equipped with the equipment of the useless composition brass of fusing and anode scrap copper, reduced thus investment, energy consumption and blowing cost, further enlarged the technique scope of application.
According to one embodiment of present invention, described non-basic flux is acidic flux or neutral flux.
According to one embodiment of present invention, described acidic flux is quartzite, and described neutral flux is the mixture of quartzite and lime or the mixture of quartzite and Wingdale.
According to one embodiment of present invention, described blowing slag is by the continuous blow-down of overflow mode.Can discharge easily the blowing slag thus, reduce manual operation.
According to one embodiment of present invention, described blister copper is by siphon mode continuous blow-down.
According to one embodiment of present invention, the interior blowing temperature of described copper matte regulus bottom blowing converting furnace is 1150-1300 degree centigrade.
According to one embodiment of present invention, the interior blowing temperature of described copper matte regulus bottom blowing converting furnace is 1180-1250 degree centigrade.
According to one embodiment of present invention, the stokehold pressure of described oxygen-containing gas is 0.2-0.8MPa.
According to one embodiment of present invention, the stokehold pressure of described oxygen-containing gas is 0.4-0.6MPa.
According to one embodiment of present invention, the oxygen concentration of described oxygen-containing gas is 20-99.6%.
According to one embodiment of present invention, the oxygen concentration of described oxygen-containing gas is 30-75%.
According to one embodiment of present invention, described Bottom Blowing Ejection Gun also sprays into nitrogen in described copper matte regulus bottom blowing converting furnace.By spraying into nitrogen, not only can cool off spray gun, and can the melt in the copper matte regulus bottom blowing converting furnace be stirred, further improve the blowing effect.Nitrogen is injected in the blister copper layer, can also improve the blister copper quality.
According to one embodiment of present invention, the first watercooling jacket or gas permeable brick between described copper matte regulus bottom blowing blowing technology also comprises in the body of heater of periphery by being located at described Bottom Blowing Ejection Gun and described copper matte regulus bottom blowing converting furnace cool off described Bottom Blowing Ejection Gun.Can further prolong thus the work-ing life of described Bottom Blowing Ejection Gun.
According to one embodiment of present invention, the slag blanket zone of described copper matte regulus bottom blowing converting furnace is provided with the second watercooling jacket.Can further prolong thus the work-ing life of copper matte regulus bottom blowing converting furnace.
According to one embodiment of present invention, described the first and second watercooling jackets are copper water jacket.Compare with traditional stainless steel water jacket, copper water jacket has the advantages such as good cooling results, long service life.
Embodiment according to second aspect present invention proposes a kind of copper matte regulus bottom blowing converting furnace, comprise: body of heater, have furnace chamber in the described body of heater, described body of heater have for the charging opening that in described furnace chamber, adds the material comprise copper matte regulus, be used for discharging blowing slag slag-drip opening, be used for discharging the blister copper discharge outlet of blister copper, the spray gun jack that is used for discharging the smoke outlet of flue gas and is located at the bottom of described body of heater; And Bottom Blowing Ejection Gun, described Bottom Blowing Ejection Gun is inserted in the described spray gun jack, for being blown into continuously oxygen-containing gas in the melt in described furnace chamber.
Have the copper matte regulus of processing efficient according to the copper matte regulus bottom blowing converting furnace of the embodiment of the invention high, the feature of environmental protection is good, and the blister copper quality is high, the advantage that cupric reduces in the blowing slag.
According to one embodiment of present invention, described charging opening comprises for the first charging opening that adds copper matte regulus and flux in described furnace chamber and be used for adding the second charging opening of anode scrap copper and/or useless composition brass in described furnace chamber.
According to one embodiment of present invention, described charging opening and described smoke outlet share an opening.Can reduce thus the open amount of described copper matte regulus bottom blowing converting furnace, reduce difficulty of processing, improve sealing property, reduce the inleakage of body of heater, environmental-protecting performance further improves.
According to one embodiment of present invention, described Bottom Blowing Ejection Gun is blown into described oxygen-containing gas in the blister copper layer of described melt continuously.
According to one embodiment of present invention, described Bottom Blowing Ejection Gun is blown into described oxygen-containing gas in the copper matte regulus layer of described melt continuously.
According to one embodiment of present invention, described copper matte regulus is solid-state.
According to one embodiment of present invention, described body of heater is rotating cylindrical horizontal container.By rotating, can be convenient for changing Bottom Blowing Ejection Gun.
According to one embodiment of present invention, described Bottom Blowing Ejection Gun is arranged in below the horizontal center line of described body of heater.
According to one embodiment of present invention, the angle α between described Bottom Blowing Ejection Gun and the direction straight up at-120 degree to the scopes of+120 degree.
According to one embodiment of present invention, the angle α between described Bottom Blowing Ejection Gun and the direction straight up at-60 degree to the scopes of+60 degree.
According to one embodiment of present invention, the angle α between described Bottom Blowing Ejection Gun and the direction straight up at-30 degree to the scopes of+30 degree.
According to one embodiment of present invention, preferred, the angle α between described Bottom Blowing Ejection Gun and the direction straight up spends to the scopes of+20 degree-20.
According to one embodiment of present invention, described Bottom Blowing Ejection Gun and be orthogonal to angle β between the axial direction of described copper matte regulus bottom blowing converting furnace at-30 degree to the scopes of+30 degree.
According to one embodiment of present invention, described Bottom Blowing Ejection Gun and the angle β that is orthogonal between the axial direction of described copper matte regulus bottom blowing converting furnace are 0 degree.
According to one embodiment of present invention, be provided with the first watercooling jacket or gas permeable brick between the periphery of described Bottom Blowing Ejection Gun and the described body of heater.Can further prolong thus the work-ing life of described Bottom Blowing Ejection Gun.
According to one embodiment of present invention, the slag blanket zone of described copper matte regulus bottom blowing converting furnace is provided with the second watercooling jacket.Can further prolong thus the work-ing life of copper matte regulus bottom blowing converting furnace.
According to one embodiment of present invention, described the first and second watercooling jackets are copper water jacket.Copper water jacket has the advantages such as good cooling results, long service life.
Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously and easily understanding becoming the description of embodiment in conjunction with following accompanying drawing, wherein:
Fig. 1 is the schematic diagram of copper matte regulus bottom blowing converting furnace according to an embodiment of the invention;
Fig. 2 is the transverse sectional view of the body of heater of copper matte regulus bottom blowing converting furnace according to an embodiment of the invention;
Fig. 3 is the transverse sectional view of the body of heater of copper matte regulus bottom blowing converting furnace in accordance with another embodiment of the present invention;
Fig. 4 is the schematic diagram of the projection on perpendicular of copper matte regulus bottom blowing converting furnace according to an embodiment of the invention;
Fig. 5 is the schema of copper matte regulus bottom blowing blowing technology according to an embodiment of the invention.
Copper matte regulus bottom blowing converting furnace 1, body of heater 10, furnace chamber 101, charging opening 102, slag-drip opening 103, blister copper discharge outlet 104, smoke outlet 105, spray gun jack 106, Bottom Blowing Ejection Gun 20, bracket 30, backing ring 40, gear ring 50, drive unit 60, blister copper layer C1, copper matte regulus layer C2, blowing slag blanket C3, L1 blister copper liquidus, L2 copper matte regulus liquidus, L3 blowing slag liquidus.
Embodiment
The below describes embodiments of the invention in detail, and the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, be intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, term " " center "; " vertically "; " laterally "; " length "; " width "; " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of indications such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only be for convenience of description the present invention and simplified characterization, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " only are used for describing purpose, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the invention, the implication of " a plurality of " is two or more, unless clear and definite concrete restriction is arranged in addition.
In the present invention, unless clear and definite regulation and restriction are arranged in addition, broad understanding should be done in the terms such as term " installation ", " linking to each other ", " connection ", " fixing ", for example, can be to be fixedly connected with, and also can be to removably connect, or connect integratedly; Can be mechanical connection, also can be to be electrically connected; Can be directly to link to each other, also can indirectly link to each other by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can understand as the case may be above-mentioned term concrete meaning in the present invention.
In the present invention, unless clear and definite regulation and restriction are arranged in addition, First Characteristic Second Characteristic it " on " or D score can comprise that the first and second features directly contact, can comprise that also the first and second features are not directly contacts but by the other feature contact between them.And, First Characteristic Second Characteristic " on ", " top " and " above " comprise First Characteristic directly over Second Characteristic and oblique upper, or only represent that the First Characteristic level height is higher than Second Characteristic.First Characteristic Second Characteristic " under ", " below " and " below " comprise First Characteristic under the Second Characteristic and tiltedly, or only represent that the First Characteristic level height is less than Second Characteristic.
Below with reference at first describing copper matte regulus bottom blowing converting furnace and copper matte regulus bottom blowing blowing technology according to the embodiment of the invention with reference to figure 1-5.The copper matte regulus bottom blowing blowing technology that can be used for the executive basis embodiment of the invention according to the copper matte regulus bottom blowing converting furnace of the embodiment of the invention, it will be appreciated that, be not limited to use copper matte regulus bottom blowing converting furnace according to the description of the embodiment of the invention according to the copper matte regulus bottom-blown smelting technique of the embodiment of the invention.
As shown in Figure 1, the copper matte regulus bottom blowing converting furnace 1 according to the embodiment of the invention comprises body of heater 10 and Bottom Blowing Ejection Gun 20.
Have furnace chamber 101 in the body of heater 10, body of heater 10 have for the charging opening 102 that comprises the material of copper matte regulus to furnace chamber 101 interior addings, be used for discharging blowing slag slag-drip opening 103, be used for discharging the blister copper discharge outlet 104 of blister copper, the spray gun jack 106 that is used for discharging the smoke outlet 105 of flue gas and is located at body of heater 10 bottoms.Bottom Blowing Ejection Gun 20 is inserted in the spray gun jack 106, for being blown into continuously oxygen-containing gas in the melt in furnace chamber 101.
According to the copper matte regulus bottom blowing converting furnace of the embodiment of the invention, good environmental protection can be blown to copper matte regulus by the bottom blowing oxygen-containing gas, pollute and reduce, the exhaust gas volumn that produces is few, concentration stabilize, and the blister copper quality is high, blowing slag cupric is few, can process the copper matte regulus of various smelting furnace outputs, can serialization blow, efficient improves, can blow liquid and solid-state copper matte regulus, suitability is high.
Material to furnace chamber 101 interior addings can be copper matte regulus and non-basic flux, preferably, can also add anode scrap copper and/or useless composition brass by charging opening 102, thereby need not to be equipped with the equipment of the useless composition brass of fusing and anode scrap copper, reduce investment, energy consumption and blowing cost, further enlarged the technique scope of application.
Alternatively, charging opening 102 can be divided into for to the first charging opening of furnace chamber 101 interior adding copper matte regulus and flux be used for the second charging opening to furnace chamber 101 interior adding anode scrap copper and/or useless composition brass.More specifically, the first charging opening can be divided into copper matte regulus charging opening and flux charging opening again, and the second charging opening can be divided into anode scrap charging opening and useless composition brass charging opening again.Preferably, charging opening 102 can be same opening with smoke outlet 105, reduces thus the open amount of body of heater 10, reduces manufacturing cost.Alternatively, smoke outlet 105 can be with any one shares an opening in the first and second charging openings, perhaps smoke outlet 105 can with in copper matte regulus charging opening, flux charging opening, anode scrap charging opening and the useless composition brass charging opening any one or a plurality ofly share an opening.
As shown in Figure 1, in some embodiments of the invention, spray gun jack 106 can be that a plurality of and a plurality of spray gun jacks 106 can be formed on body of heater 10 bottoms spaced apartly, it will be appreciated that, the term bottom here should be made broad understanding, comprises the following any suitable position of horizontal center line X of body of heater 10, preferably, spray gun is near under the body of heater 10, and the below will more detailed description.Bottom Blowing Ejection Gun 20 can be that a plurality of and a plurality of Bottom Blowing Ejection Guns 20 can be inserted into respectively in a plurality of spray gun jacks 106 accordingly, that is, a Bottom Blowing Ejection Gun 20 can be inserted in the spray gun jack 106.Oxygen-containing gas can be blown in the blister copper layer C1 more equably thus, thereby further improve the quality of blister copper.Here, oxygen-containing gas should be done broad understanding, for example comprises pure oxygen, oxygen rich gas and contain oxygen air etc.Preferably, oxygen-containing gas is oxygen-rich air, and for example oxygen concentration is at the oxygen-rich air more than 70%.Bottom Blowing Ejection Gun 20 can be located at below the horizontal center line X of body of heater 10 of copper matte regulus bottom blowing converting furnace 1.
Particularly, the stokehold pressure of described oxygen-containing gas can be 0.2MPa-0.8MPa.Further, the stokehold pressure of described oxygen-containing gas can be 0.4MPa-0.6MPa.
The oxygen concentration of described oxygen-containing gas can be 20%-99.6%.Further, the oxygen concentration of described oxygen-containing gas can be 30%-75%.
In a preferred embodiment of the invention, body of heater 10 can be rotating cylindrical horizontal container.By rotating furnace 10, can change easily and keep in repair Bottom Blowing Ejection Gun 20, and the melt in emptying furnace chamber 101 of the time of needing repairing.
As shown in Figure 1, copper matte regulus bottom blowing converting furnace 1 further comprises bracket 30, backing ring 40, gear ring 50 and drive unit 60.Backing ring 40 is set on the body of heater 10 and rotatably is supported on the bracket 30.Gear ring 50 is set on the outside surface of body of heater 10.Drive unit 60 links to each other with gear ring 50, to drive body of heater 10 rotations by driving gear ring 50 rotations.Drive unit 60 for example can comprise motor, and the speed reduction unit that links to each other with motor can be installed gear on the output shaft of speed reduction unit, and gear and gear ring 50 mesh to drive gear ring 50 and rotate.Body of heater 10 rotates at bracket 30 under the drive of gear ring 50, because body of heater 10 can rotate, is convenient to change Bottom Blowing Ejection Gun 20 and other operations.
Shown in Fig. 2 and 3, the angle α between Bottom Blowing Ejection Gun 20 and the direction straight up can be at-120 degree to the scope of+120 degree, and namely-120 degree≤α≤+ 120 are spent.In other words, the angle between the emission direction of Bottom Blowing Ejection Gun 20 and the direction is straight up spent to the scopes of+120 degree-120.Shown in Fig. 2 and 3, from the blowing direction of Bottom Blowing Ejection Gun 20 in the counterclockwise direction to the angle α of straight up direction for just, from the blowing direction of Bottom Blowing Ejection Gun 20 along clockwise direction to the angle α of straight up direction for negative.
More specifically, the angle α between Bottom Blowing Ejection Gun 20 and the direction straight up can be at-60 degree to the scope of+60 degree, and namely-60 degree≤α≤+ 60 are spent.Advantageously, to the scope of+30 degree, namely-30 spend by degree≤α≤+ 30 at-30 degree for the angle between Bottom Blowing Ejection Gun 20 and the direction straight up.Preferably, to the scope of+20 degree, namely-20 spend by degree≤α≤+ 20 at-20 degree for the angle between Bottom Blowing Ejection Gun 20 and the direction straight up.Can improve the blowing effect thus.
In optional embodiment of the present invention, Bottom Blowing Ejection Gun 20 and be orthogonal to angle β between the axial direction (being the vertical direction among Fig. 4) of body of heater 10 at-30 degree to the scopes of+30 degree.More preferably, angle β is 0 degree, and namely Bottom Blowing Ejection Gun 20 is vertically directed.
In order to improve the life-span of Bottom Blowing Ejection Gun 20, be provided with gas permeable brick or the first watercooling jacket between the periphery of Bottom Blowing Ejection Gun 20 and the body of heater 10.Gas permeable brick can cool off and can improve to Bottom Blowing Ejection Gun 20 flowability of the melt in the furnace chamber 101, improves the blowing effect.Optionally, can be by gas permeable brick to furnace chamber 101 interior injection nitrogen, then can cool off better Bottom Blowing Ejection Gun 20 and stir better melt in the furnace chamber 101.When watercooling jacket was set, watercooling jacket led to water coolant, and Bottom Blowing Ejection Gun 20 is cooled off.
Preferably, the slag blanket zone of furnace chamber 101 is provided with the second watercooling jacket.Can further prolong thus the work-ing life of body of heater 10.Preferably, the first and second watercooling jackets are copper water jacket.Than traditional molten steel cover, copper water jacket has the advantages such as good cooling results, long service life.
According to the preferred embodiment of the present invention, Bottom Blowing Ejection Gun 20 is blown into oxygen-containing gas in the copper matte regulus layer C2 of melt continuously, and more preferably, Bottom Blowing Ejection Gun 20 is blown into oxygen-containing gas in the blister copper layer C1 of melt continuously, and the below can describe useful technique effect in detail.
According to the copper matte regulus bottom blowing converting furnace of the embodiment of the invention, the copper matte regulus that can obtain for the treatment of various smelting furnace meltings.Advantageously, process solid-state copper matte regulus according to the copper matte regulus bottom blowing converting furnace of the embodiment of the invention.
In conjunction with Fig. 1-4 copper matte regulus bottom blowing blowing technology according to the embodiment of the invention is described below with reference to Fig. 5.As shown in Figure 5, the copper matte regulus bottom blowing blowing technology according to the embodiment of the invention may further comprise the steps:
Copper matte regulus and non-basic flux are joined in the furnace chamber 101; Utilize Bottom Blowing Ejection Gun 20 to be blown into continuously oxygen-containing gas from the bottom of body of heater 10 to furnace chamber in the melt in 101; With from interior blister copper and the blowing slags of discharging respectively of furnace chamber 101.
Copper matte regulus bottom blowing blowing technology according to the embodiment of the invention, be blown into continuously oxygen-containing gas by utilizing in the melt of Bottom Blowing Ejection Gun in from the bottom of described copper matte regulus bottom blowing converting furnace to the copper matte regulus bottom blowing converting furnace, can realize continuous converting, raise the efficiency, reduce cost, and exhaust gas volumn is few, and flue gas concentration is stable, and flue gas is overflowed few, good environmental protection, reduced pollution, the blister copper quality is high, and copper content reduces in the blowing slag.
It will be appreciated that, refer to the furnace chamber 101 interior oxygen-containing gass that are blown into continuously: when normally producing, uninterruptedly blow continuously oxygen-containing gas, can avoid damaging Bottom Blowing Ejection Gun 20, certainly, when the copper matte regulus bottom blowing converting furnace was made a fault or normally keep in repair, Bottom Blowing Ejection Gun 20 also needed to stop to blow.
Compare with the traditional PS converter oxygen that periodically blows side, the unit time air output reduces, and the unit time exhaust gas volumn is little, Heat stability is good, and cost and energy consumption are low, and efficient is high.
In some embodiments of the invention, in Bottom Blowing Ejection Gun 20 is blown into copper matte regulus layer C2 in the furnace chamber 101 with oxygen-containing gas continuously from the bottom of body of heater 10.By in copper matte regulus layer C2, being blown into continuously oxygen-containing gas, can reduce the tilt angle of body of heater 10, improve the capacity utilization of body of heater 10, be convenient to safeguard Bottom Blowing Ejection Gun 20.
Advantageously, in Bottom Blowing Ejection Gun 20 is blown into blister copper layer C1 in the furnace chamber 101 with oxygen-containing gas continuously from the bottom of body of heater 10.
As shown in Figure 1, in furnace chamber 101, melt can be divided into three parts (three-phase): blister copper layer C1, copper matte regulus layer (or claiming copper-nickel alloy sulfonium layer) C2 and blowing slag blanket C3, L1, L2 and L3 are respectively the blister copper metal lines, copper matte regulus metal line and slag blanket metal line are in the situation that three-phase coexistence is conducive to reduce slag cupric and security and improves.
The beneficial effect that blows oxygen-containing gas in the blister copper layer is: in described copper matte regulus bottom blowing converting furnace, blister copper layer C1 is positioned at copper matte regulus layer C2 below, by oxygen-containing gas being blown into continuously blister copper layer C1, described Bottom Blowing Ejection Gun need not to pass blister copper layer C1, can improve like this life-span of described Bottom Blowing Ejection Gun.In other words, by in blister copper layer C1, being blown into continuously oxygen-containing gas, can make described Bottom Blowing Ejection Gun need not to stretch into too many in the described body of heater (for example the length that stretches in the described body of heater of described Bottom Blowing Ejection Gun can be less than 50 millimeters), reduced the loss of described Bottom Blowing Ejection Gun, prolong the work-ing life of described copper matte regulus bottom blowing converting furnace, reduce the running cost of described copper matte regulus bottom blowing converting furnace.In addition, the amount that oxygen-containing gas enters slag blanket reduces, and avoids because copper matte regulus layer C2 is thinner, the oxygen-containing gas of described Bottom Blowing Ejection Gun ejection is easy to pass copper matte regulus layer C2 and enters slag blanket, thereby cause the oxygen-containing gas waste, can reduce the consumption of oxygen-containing gas, further reduce cost.
And, by in the blister copper layer, being blown into continuously oxygen-containing gas, can make the oxygen gesture in the blister copper layer the highest, and impurity element (S, As, Sb, Bi, the Pb etc.) oxidation that will be mixed in first in the blister copper layer removes, thereby obtain the higher blister copper of quality.Oxygen-containing gas can also be with blister copper as carrier, with Cu 2Cu among O, CuO form and the copper matte regulus layer C2 2S, CuS reaction generates Cu and SO 2, and generate FeO, SO with FeS reaction in the copper matte regulus layer 2And Cu.Described copper matte regulus bottom blowing blowing technology can reduce Fe 3O 4Growing amount, prevent Fe 3O 4The generation of precipitation and foamy slag.Because the Fe in the blowing slag 3O 4Content is low, and the viscosity of blowing slag is just low, and then can reduce Cu in the blowing slag 2The inclusion content of O (for example, the copper content of blowing slag can be less than 14%, even less than 10%).Namely by in described blister copper layer, being blown into continuously oxygen-containing gas, increase the oxygen-containing gas reaction times, improved the oxygen-containing gas utilization ratio, improved the blister copper quality.In addition, by in the blister copper layer, being blown into continuously oxygen-containing gas, the total amount of gas can be reduced to be blown in the unit time, thereby the risk of spray stove can be reduced.
By in described blister copper layer, being blown into continuously oxygen-containing gas, can make furnace temperature stable, overcome the excessive shortcoming of converter discontinuous running temperature fluctuation, be conducive to increase substantially the work-ing life of described copper matte regulus bottom blowing converting furnace, reduce refractory consumption rate and maintenance load, thereby reduced the copper metallurgy cost.And described copper matte regulus bottom blowing blowing technology can make the SO in exhaust gas volumn and the flue gas 2Stable content is balanced, and body of heater does not need frequent rotation, thereby air leak rate of air curtain is declined to a great extent, and has overcome the large shortcoming of converter discontinuous running exhaust gas volumn and smoke components fluctuation, is conducive to relieving haperacidity, has reduced the investment of sour factory and running cost.
Advantageously, after one batch copper matte regulus joins the furnace chamber 101 interior blister coppers that blow out, only blister copper is discharged.New copper matte regulus is added again blowing in the furnace chamber 101, can be with the copper oxide reduction in the slag that blows for the first time, the slag cupric thereby reduction is blown.
In some embodiments of the invention, described copper matte regulus can be solid-state copper matte regulus.In other words, described copper matte regulus can join in the furnace chamber 101 with solid form.Copper matte regulus bottom blowing blowing technology according to the embodiment of the invention can be processed solid-state copper matte regulus, and by in described copper matte regulus bottom blowing converting furnace, adding solid-state copper matte regulus, can be more easily, accurately the add-on of copper matte regulus is measured, and can more easily, accurately control the amount ratio of copper matte regulus and oxygen-containing gas (oxygen amount).Can control more easily converting process thus, so that the melt in the converting furnace exists with blister copper and blowing slag two-phase, not have or almost do not have copper matte regulus layer (or claiming copper-nickel alloy sulfonium layer).For example in some embodiments of the invention, by accurately controlling the amount ratio of copper matte regulus and oxygen-containing gas (oxygen amount), melt in the furnace chamber 101 also can be two portions (two-phase), blister copper layer C1 and blowing slag blanket C3, be that copper matte regulus enters in the furnace chamber 101 and namely is blister copper and blowing slag by blowing, in the situation that two-phase coexistent, the blister copper quality is high, and impurity is low.By this control, can further improve the blowing effect, further reduce the sulphur content of blister copper and the content of other impurity (such as arsenic, antimony, bismuth, lead etc.).Owing to can accurately control the amount ratio of copper matte regulus and oxygen-containing gas, thereby can avoid too much causing the blister copper peroxidation and forming foamy slag because oxygen-containing gas sprays into, can also avoid containing more impurity (such as arsenic, antimony, bismuth, lead etc.) so that subsequent disposal because oxygen-containing gas sprays into the very few blister copper that causes.And, by in described copper matte regulus bottom blowing converting furnace, adding solid-state copper matte regulus, can realize intermittent charging, namely can in described copper matte regulus bottom blowing converting furnace, add solid-state copper matte regulus discontinuously, can make thus described copper matte regulus bottom blowing blowing technology have stronger adaptability and wider range of application.
Particularly, can the liquid towards copper matte regulus carry out that water is broken, broken in order to obtain solid-state copper matte regulus after dry granulation or the cooling.
Described solid-state copper matte regulus can add copper matte regulus bottom blowing converting furnace 1 by feeding chute or charging chute, and described solid-state copper matte regulus can also be by airflow blow in copper matte regulus bottom blowing converting furnace 1.Thus can be more easily, easily described solid-state copper matte regulus is joined in the described copper matte regulus bottom blowing converting furnace.Advantageously, described solid-state copper matte regulus can add in the copper matte regulus bottom blowing converting furnace 1 continuously.Thus can the continuous treatment copper matte regulus, in conjunction with continuously oxygen blast, further improve processing efficiency.
As mentioned above, the angle α between the injection direction of Bottom Blowing Ejection Gun 20 and the direction straight up can be at-120 degree to the scope of+120 degree.Preferably, the angle α between the injection direction of Bottom Blowing Ejection Gun 20 and the direction straight up can be at-60 degree to the scope of+60 degree.Advantageously, the angle α between the injection direction of Bottom Blowing Ejection Gun 20 and the direction straight up spends to the scopes of+30 degree-30.Preferably, the angle α between the injection direction of Bottom Blowing Ejection Gun 20 and the direction straight up spends to the scopes of+20 degree-20.Be understandable that, when the volume of copper matte regulus bottom blowing converting furnace 1 was large, the melt of processing was many, and angle α can be larger, otherwise angle α can be smaller, wears in order to avoid blow, and caused the oxygen-containing gas waste, impact blowing effect.
According to one embodiment of present invention, described Bottom Blowing Ejection Gun 20 and be orthogonal to angle β between the axial direction of described copper matte regulus bottom blowing converting furnace at-30 degree to the scopes of+30 degree.
According to one embodiment of present invention, described angle β is 0 degree.
Copper matte regulus bottom blowing blowing technology according to the embodiment of the invention can also comprise to furnace chamber 101 interior adding anode scrap copper and/or useless composition brasses.By to copper matte regulus bottom blowing converting furnace 1 interior adding anode scrap copper and/or useless composition brass, need not to be equipped with the equipment of the useless composition brass of fusing and anode scrap copper, reduced thus investment, energy consumption and blowing cost, further enlarged the technique scope of application.
According to embodiments of the invention, described non-basic flux can be acidic flux or neutral flux.Wherein, described acidic flux can be quartzite, and described neutral flux can be the mixture of quartzite and lime or the mixture of quartzite and Wingdale.The smelting slag that adopts Wingdale, lime to produce as flux is basic slag, the basic slag good fluidity, and the slag cupric is lower, but serious to lining erosion.For addressing this problem, through verification experimental verification, the acid slag that the present invention proposes to adopt quartzite to produce as flux is less to the erosion of furnace lining, can effectively prolong the work-ing life of uninterrupted working time and bottom blowing converting furnace.But test finds that simultaneously the acid slag flowability is relatively poor, and cupric is higher in the slag that causes blowing, and easily produces foamy slag, affects production safety.Be to solve the problem of acid slag, the present invention proposes again to adopt the mixture of the mixture of quartzite and lime or quartzite and Wingdale as the flux slag making, and the present invention is called neutral slag with this blowing slag.Employing neutral slag can alleviate the erosion to furnace lining, can improve liquidity to a certain extent again, reduces the slag cupric, and can reduce the risk of foamy slag, is preferred technical scheme.
Preferably, described blowing slag can be by the continuous blow-down of overflow mode.Certainly, also can be by overflow mode intermittent discharge, or the mode intermittent discharge by perforating on body of heater 10.
Preferably, described blister copper can pass through siphon mode continuous blow-down.Certainly, also can be by overflow mode intermittent discharge, or the mode intermittent discharge by perforating on body of heater 10.
According to the blowing technology of the embodiment of the invention, the copper content of blowing slag can be less than or equal to 20wt%.In other words, the mass percent of the copper in the described blowing slag and described blowing slag is less than or equal to 20%.More advantageously, the copper content of described blowing slag is less than or equal to 15wt%, to reduce the amount of returning and the mechanical loss amount of copper in the blowing slag.
In examples more of the present invention, the blowing temperature in the copper matte regulus bottom blowing converting furnace 1 can be 1150 degrees centigrade-1300 degrees centigrade, the carrying out of keeping converting process.Advantageously, the blowing temperature in the copper matte regulus bottom blowing converting furnace 1 can be 1180 degrees centigrade-1250 degrees centigrade, the carrying out of more safely keeping converting process.In addition, according to the blowing technology of the embodiment of the invention, can in the blister copper layer in the copper matte regulus bottom blowing converting furnace 1, spray into nitrogen, to stir melt, improve blowing effect and blister copper quality.Nitrogen is injected in the blister copper layer, can also improve the blister copper quality.
In an example of the present invention, can cool off Bottom Blowing Ejection Gun 20 by the first watercooling jacket or gas permeable brick.Thus, improve the life-span of Bottom Blowing Ejection Gun 20.
According to copper matte regulus bottom blowing converting furnace and the copper matte regulus bottom blowing blowing technology of the embodiment of the invention, can realize the continuous converting of copper matte regulus, the exhaust gas volumn of generation is few, concentration stabilize, environmental protection, the blister copper quality improvement, cupric is low in the blowing slag, and efficient is high, and cost is low, and use range is wide.
In the description of this specification sheets, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or the example in conjunction with specific features, structure, material or the characteristics of this embodiment or example description.In this manual, the schematic statement of above-mentioned term not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or characteristics can be with suitable mode combinations in any one or more embodiment or example.
Although the above has illustrated and has described embodiments of the invention, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, those of ordinary skill in the art is not in the situation that break away from principle of the present invention and aim can change above-described embodiment within the scope of the invention, modification, replacement and modification.

Claims (45)

1. a copper matte regulus bottom blowing blowing technology is characterized in that, may further comprise the steps:
Copper matte regulus and non-basic flux are joined in the copper matte regulus bottom blowing converting furnace;
Utilize in the melt of Bottom Blowing Ejection Gun in from the bottom of described copper matte regulus bottom blowing converting furnace to described copper matte regulus bottom blowing converting furnace and be blown into continuously oxygen-containing gas; With
In described copper matte regulus bottom blowing converting furnace, discharge respectively blister copper and blowing slag.
2. copper matte regulus bottom blowing blowing technology according to claim 1 is characterized in that, described oxygen-containing gas is continuously blown in the blister copper layer of described melt.
3. copper matte regulus bottom blowing blowing technology according to claim 1 and 2 is characterized in that, described oxygen-containing gas is continuously blown in the copper matte regulus layer of described melt.
4. each described copper matte regulus bottom blowing blowing technology is characterized in that according to claim 1-3, and described copper matte regulus is solid-state copper matte regulus.
5. copper matte regulus bottom blowing blowing technology according to claim 4 is characterized in that, described solid-state copper matte regulus joins in the described copper matte regulus bottom blowing converting furnace or by airflow blow by feeding chute or charging chute and arrives in the described copper matte regulus bottom blowing converting furnace.
6. copper matte regulus bottom blowing blowing technology according to claim 4 is characterized in that, described solid-state copper matte regulus is added in the described copper matte regulus bottom blowing converting furnace continuously.
7. each described copper matte regulus bottom blowing blowing technology is characterized in that according to claim 1-6, and described Bottom Blowing Ejection Gun is located at below the horizontal center line of body of heater of described copper matte regulus bottom blowing converting furnace.
8. each described copper matte regulus bottom blowing blowing technology is characterized in that according to claim 1-7, and the angle α between described Bottom Blowing Ejection Gun and the direction straight up spends to the scopes of+120 degree-120.
9. copper matte regulus bottom blowing blowing technology according to claim 8 is characterized in that, the angle α between described Bottom Blowing Ejection Gun and the direction straight up spends to the scopes of+60 degree-60.
10. copper matte regulus bottom blowing blowing technology according to claim 9 is characterized in that, the angle α between described Bottom Blowing Ejection Gun and the direction straight up spends to the scopes of+30 degree-30.
11. copper matte regulus bottom blowing blowing technology according to claim 10 is characterized in that, the angle α between described Bottom Blowing Ejection Gun and the direction straight up spends to the scopes of+20 degree-20.
12. each described copper matte regulus bottom blowing blowing technology is characterized in that according to claim 1-11, described Bottom Blowing Ejection Gun and be orthogonal to angle β between the axial direction of described copper matte regulus bottom blowing converting furnace at-30 degree to the scopes of+30 degree.
13. copper matte regulus bottom blowing blowing technology according to claim 12 is characterized in that, described angle β is 0 degree.
14. each described copper matte regulus bottom blowing blowing technology is characterized in that according to claim 1-13, also comprises in described copper matte regulus bottom blowing converting furnace adding anode scrap copper and/or useless composition brass.
15. each described copper matte regulus bottom blowing blowing technology is characterized in that according to claim 1-14, described non-basic flux is acidic flux or neutral flux.
16. copper matte regulus bottom blowing blowing technology according to claim 15 is characterized in that described acidic flux is quartzite, described neutral flux is the mixture of quartzite and lime or the mixture of quartzite and Wingdale.
17. each described copper matte regulus bottom blowing blowing technology is characterized in that according to claim 1-15, described blowing slag is by the continuous blow-down of overflow mode.
18. each described copper matte regulus bottom blowing blowing technology is characterized in that according to claim 1-6, described blister copper is by siphon mode continuous blow-down.
19. each described copper matte regulus bottom blowing blowing technology is characterized in that according to claim 1-17, the blowing temperature in the described copper matte regulus bottom blowing converting furnace is 1150-1300 degree centigrade.
20. copper matte regulus bottom blowing blowing technology according to claim 19 is characterized in that described blowing temperature is 1180-1250 degree centigrade.
21. each described copper matte regulus bottom blowing blowing technology is characterized in that according to claim 1-20, the stokehold pressure of described oxygen-containing gas is 0.2-0.8MPa.
22. copper matte regulus bottom blowing blowing technology according to claim 21 is characterized in that the stokehold pressure of described oxygen-containing gas is 0.4-0.6MPa.
23. each described copper matte regulus bottom blowing blowing technology is characterized in that according to claim 1-22, the oxygen concentration of described oxygen-containing gas is 20-99.6%.
24. copper matte regulus bottom blowing blowing technology according to claim 23 is characterized in that the oxygen concentration of described oxygen-containing gas is 30-75%.
25. each described copper matte regulus bottom blowing blowing technology is characterized in that according to claim 1-24, described Bottom Blowing Ejection Gun also sprays into nitrogen in the melt in the described copper matte regulus bottom blowing converting furnace.
26. each described copper matte regulus bottom blowing blowing technology according to claim 1-25, it is characterized in that, comprise that also gas permeable brick or the first watercooling jacket between the body of heater of periphery by being located at described Bottom Blowing Ejection Gun and described copper matte regulus bottom blowing converting furnace cools off described Bottom Blowing Ejection Gun.
27. each described copper matte regulus bottom blowing blowing technology is characterized in that according to claim 1-25, the slag blanket zone of described copper matte regulus bottom blowing converting furnace is provided with the second watercooling jacket.
28. according to claim 26 or 27 described copper matte regulus bottom blowing blowing technology, it is characterized in that, described the first and second watercooling jackets are copper water jacket.
29. a copper matte regulus bottom blowing converting furnace is characterized in that, comprising:
Body of heater, have furnace chamber in the described body of heater, described body of heater have for the charging opening that in described furnace chamber, adds the material comprise copper matte regulus, be used for discharging blowing slag slag-drip opening, be used for discharging the blister copper discharge outlet of blister copper, the spray gun jack that is used for discharging the smoke outlet of flue gas and is located at the bottom of described body of heater; With
Bottom Blowing Ejection Gun, described Bottom Blowing Ejection Gun are inserted in the described spray gun jack, for being blown into continuously oxygen-containing gas in the melt in described furnace chamber.
30. copper matte regulus bottom blowing converting furnace according to claim 29 is characterized in that, described charging opening comprises for the first charging opening that adds copper matte regulus and flux in described furnace chamber with for the second charging opening that adds anode scrap copper and/or useless composition brass in described furnace chamber.
31. copper matte regulus bottom blowing converting furnace according to claim 29 is characterized in that, described charging opening and described smoke outlet share an opening.
32. each described copper matte regulus bottom blowing converting furnace is characterized in that according to claim 29-31, described Bottom Blowing Ejection Gun is blown into described oxygen-containing gas in the blister copper layer of described melt continuously.
33. each described copper matte regulus bottom blowing converting furnace is characterized in that according to claim 29-32, described Bottom Blowing Ejection Gun is blown into described oxygen-containing gas in the copper matte regulus layer of described melt continuously.
34. each described copper matte regulus bottom blowing converting furnace is characterized in that according to claim 29-33, described copper matte regulus is solid-state.
35. each described copper matte regulus bottom blowing converting furnace is characterized in that according to claim 29-34, described body of heater is rotating cylindrical horizontal container.
36. each described copper matte regulus bottom blowing converting furnace is characterized in that according to claim 29-35, described Bottom Blowing Ejection Gun is located at below the horizontal center line of described body of heater.
37. each described copper matte regulus bottom blowing converting furnace is characterized in that according to claim 29-36, the angle α between described Bottom Blowing Ejection Gun and the direction straight up spends to the scopes of+120 degree-120.
38. described copper matte regulus bottom blowing converting furnace is characterized in that according to claim 37, the angle α between described Bottom Blowing Ejection Gun and the direction straight up spends to the scopes of+60 degree-60.
39. described copper matte regulus bottom blowing converting furnace is characterized in that according to claim 38, the angle α between described Bottom Blowing Ejection Gun and the direction straight up spends to the scopes of+30 degree-30.
40. described copper matte regulus bottom blowing converting furnace is characterized in that according to claim 39, the angle α between described Bottom Blowing Ejection Gun and the direction straight up spends to the scopes of+20 degree-20.
41. each described copper matte regulus bottom blowing converting furnace is characterized in that according to claim 29-40, described Bottom Blowing Ejection Gun and be orthogonal to angle β between the axial direction of described copper matte regulus bottom blowing converting furnace at-30 degree to the scopes of+30 degree.
42. described copper matte regulus bottom blowing converting furnace is characterized in that according to claim 41, described Bottom Blowing Ejection Gun and the angle β that is orthogonal between the axial direction of described copper matte regulus bottom blowing converting furnace are 0 degree.
43. each described copper matte regulus bottom blowing converting furnace is characterized in that according to claim 29-42, is provided with the first watercooling jacket or gas permeable brick between the periphery of described Bottom Blowing Ejection Gun and the described body of heater.
44. each described copper matte regulus bottom blowing converting furnace is characterized in that according to claim 29-42, the slag blanket zone of described copper matte regulus bottom blowing converting furnace is provided with the second watercooling jacket.
45. each described copper matte regulus bottom blowing converting furnace is characterized in that according to claim 43-44, described the first and second watercooling jackets are copper water jacket.
CN201210568261.4A 2012-12-24 2012-12-24 Copper matte bottom blowing converting process and copper matte bottom blowing converting furnace Ceased CN103014370B (en)

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CN202164341U (en) * 2011-06-13 2012-03-14 中国恩菲工程技术有限公司 Oxygen-enriched bottom-blowing copper smelting furnace

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WO2014101688A1 (en) * 2012-12-24 2014-07-03 中国恩菲工程技术有限公司 Copper matte bottom-blowing refining process and copper matte bottom-blowing refining furnace
CN104046794A (en) * 2014-05-13 2014-09-17 中国恩菲工程技术有限公司 Bottom blowing tin smelting device
CN104060104A (en) * 2014-05-13 2014-09-24 中国恩菲工程技术有限公司 Bottom blowing tin smelting process
CN104152716A (en) * 2014-05-13 2014-11-19 中国恩菲工程技术有限公司 Bottom blowing tin smelting device
CN104060104B (en) * 2014-05-13 2016-04-13 中国恩菲工程技术有限公司 Bottom blowing tin-making process
CN108486388A (en) * 2018-03-27 2018-09-04 东营方圆有色金属有限公司 A kind of low-grade copper scap cleaning smelting device and its technique
CN110885933A (en) * 2019-11-15 2020-03-17 北京科技大学 Method for strengthening smelting effect of bottom-blowing smelting furnace and improving melt splashing
CN110885933B (en) * 2019-11-15 2021-07-16 北京科技大学 Method for strengthening smelting effect of bottom-blowing smelting furnace and improving melt splashing

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