CN102828048A - Method for improving smelting furnace capacity for treating low-grade entering-furnace materials with complex components - Google Patents
Method for improving smelting furnace capacity for treating low-grade entering-furnace materials with complex components Download PDFInfo
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- CN102828048A CN102828048A CN2012103292587A CN201210329258A CN102828048A CN 102828048 A CN102828048 A CN 102828048A CN 2012103292587 A CN2012103292587 A CN 2012103292587A CN 201210329258 A CN201210329258 A CN 201210329258A CN 102828048 A CN102828048 A CN 102828048A
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Abstract
The invention provides a method for improving smelting furnace capacity for treating low-grade entering-furnace materials with complex components. A transition section flue with a cooling water sleeve is arranged between a copper smelting furnace smoke outlet and an ascending flue, cooling water is let in the cooling water sleeve to cool the transition section flue, and simultaneously a smoke flow velocity at a position of the copper smelting furnace smoke outlet is controlled. A dust bonding speed of melting spatters and fusion smoke carried by smoke in the transition section flue is slowed down, a large part of the melting spatters and the fusion smoke carried by the smoke are promoted to drop and flow back a smelting furnace, and quantity of the melting spatters and the fusion smoke carried by the smoke and entering the ascending flue is reduced. The method enables most of the melting spatters and the fusion smoke carried by the smoke to drop and flow back the smelting furnace, substantially reduces the melting spatters and the fusion smoke entering the ascending flue, guarantees the ascending flue to be smooth, and accordingly promotes the smelting furnace capacity for treating the low-grade entering-furnace materials with the complex components.
Description
Technical field
The invention belongs to the non-ferrous metal metallurgy technical field, relate to a kind of method that copper smelter processing low-grade, composition complicacy are gone into stove material ability that improves.
Background technology
Baiyin copper smelting process is the copper smelting method that a kind of new smelting copper concentrates obtains matte.Along with the minimizing day by day of copper ore concentrates resource, can only use low, the leaded zinc of grade is high, composition is complicated copper mine more and more as raw material.Copper smelter is high in processing low-grade, leaded zinc, composition is complicated when going into the stove material, can produce the high flue gas of a large amount of dust-ladens, and get into waste heat boiler through funnel uptake.Carry the melt splash that fusion flue dust and the air blast of copper smelter air port cause in the flue gas of funnel uptake and get into; These belongings are attached to the funnel uptake inwall; Form the not knurl piece of easy to clean, it is unimpeded to hinder flue gas, causes funnel uptake to need frequent cleaning; Copper smelter can't ordinary production, so influence that copper smelter handles that low, the leaded zinc of grade is high, the complicated ability of going into the stove material of composition.
Summary of the invention
In order to overcome the problem that exists in the above-mentioned prior art; The purpose of this invention is to provide a kind of method that copper smelter processing low-grade, composition complicacy are gone into stove material ability that improves; Through reducing melt splash and the adhesion amount of fusion flue dust in funnel uptake; The assurance funnel uptake is unimpeded, reduces the funnel uptake clearing times, promotes the ability of processing low-grade furnace charge.
For realizing above-mentioned purpose; The technical scheme that the present invention adopted is: a kind ofly improve the method that copper smelter processing low-grade, composition complicacy are gone into stove material ability; The transition section flue is set between copper smelter exhanst gas outlet and funnel uptake, on this transition section flue, watercooling jacket is set; In the production process, water coolant is fed watercooling jacket, to the cooling of lowering the temperature of transition section flue, the flue gas flow rate of controlling the copper smelter smoke outlet simultaneously is 6～8m/s; The melt splash and the knot dirt speed of fusion flue dust in the transition section flue that slow down and carry in the flue dust; Impel most of melt splash of carrying in the flue gas and fusion flue dust to fall and be back in the copper smelter, reduce the melt splash of carrying in the flue dust that gets in the funnel uptake and the amount of fusion flue dust.
After dung appears in the funnel uptake inwall, do not need pressure release to clear up this dung through blowing out.
The inventive method has been installed the transition section flue between copper bath smelting furnace dust mouth and the funnel uptake that is communicated with waste heat boiler, and outside this transition section flue, the water jacket cooling structure is set; Simultaneously, through the flue gas flow rate of control copper bath smelting furnace dust mouth, most melt splashes of carrying in the flue gas and fusion flue dust are fallen and be back in the copper smelter; Significantly reduce to get into melt splash and the fusion flue dust of funnel uptake, guarantee that funnel uptake is unimpeded, thereby promote the complicated ability of going into the stove material of copper smelter processing low-grade, leaded zinc height, composition.
Embodiment
Below in conjunction with embodiment the present invention is elaborated.
The funnel uptake that the existing copper bath smelting furnace is connected with copper smelter is the membrane wall funnel uptake; During low in the melting grade, that composition is complicated material, the easy dross of funnel uptake inwall, and can't clear up; The obstruction flue gas is unimpeded, has influence on the processing power of copper smelter.In order to solve the problem that exists in the above-mentioned prior art; The invention provides a kind of method that copper smelter processing low-grade, composition complicacy are gone into stove material ability that improves; Can promote copper smelter and handle the ability of these furnace charges, enlarge the scope of copper smelter material handling, reduce cost.Method provided by the invention is:
Between the exhanst gas outlet of copper smelter and funnel uptake, the transition section flue is set; Be communicated with copper smelter exhanst gas outlet and funnel uptake through this transition section flue; On this transition section flue, watercooling jacket is set, this watercooling jacket is the cathode copper water jacket of the pre-buried casting of copper pipe; In the production process, be that 0.2Mpa, temperature are that 30～60 ℃ water coolant feeds watercooling jacket with pressure, to the cooling of lowering the temperature of transition section flue, the flue gas flow rate of controlling the copper smelter smoke outlet simultaneously is 6～8m/s; The melt splash and the knot dirt speed of fusion flue dust in the transition section flue that slow down and carry in the flue dust; Impel most of melt splash of carrying in the flue gas and fusion flue dust to fall and be back in the copper smelter; Thereby the melt splash of carrying in the flue dust in the minimizing entering funnel uptake and the amount of fusion flue dust; After dung appears in transition section flue inwall,, guarantee that flue is unimpeded through blowing out this dung of cleaning.
Because the flue dust flow velocity of copper smelter smoke outlet is relevant with the copper smelter furnace pressure, the big more combustion chamber draft of flue dust flow velocity is big more, and it is big more that fire door advances cold blast rate, influences the thermal equilibrium in the stove, produces more melt splash simultaneously; Flue dust flow velocity port thorax malleation more is big more, and the exhaust gas volumn that fire door is outwards revealed is big more, and production environment is poor more.In order to reduce the melt splash, the flue dust flow velocity in control copper smelter flue dust exit is 6～8m/s in the inventive method.
After the dross, need manual work to handle in the membrane wall funnel uptake of existing waste heat boiler, the cleaning difficulty is big, has potential safety hazard; And the sticky object in the membrane wall funnel uptake can not be blown out processings, blows out processing like need and can not be with and press big gun, need be with blowing out processing to the sticky object in the funnel uptake after the waste heat boiler pressure release.And after waste heat boiler pressure release time and the cleaning when resuming production the TRT sum of waste heat boiler need 24 hours at least, have a strong impact on production and carry out smoothly.After the inventive method adopts and has the transition section flue of watercooling jacket; Because used watercooling jacket is the cathode copper water jacket of the pre-buried casting of copper pipe, strong shock resistance, and this watercooling jacket uses independently waterworks; Separate with the recycle system of waste heat boiler; Simultaneously, the hydraulic pressure in the watercooling jacket water circulation system is low, has only 0.2MPa; Thereby need not to make the waste heat boiler pressure release just can directly blow out the dung in the cleaning transition section flue.
After employing has the transition section flue of watercooling jacket; Can not only relatively easily handle the dung in the funnel uptake; And leaded in the furnace charge, zinc sum brought up to maximum 5% by original 3%; Promote that copper smelter processing low-grade, leaded zinc are high, the complicated ability of going into the stove material of composition, greatly expanded the scope of the used copper mine raw material of copper smelter, technological preparation is provided for further reducing production costs.
Claims (4)
1. one kind is improved the method that copper smelter processing low-grade, composition complicacy are gone into stove material ability, it is characterized in that this method is specially: the transition section flue is set between copper smelter exhanst gas outlet and funnel uptake, outside this transition section flue, watercooling jacket is set; In the production process, water coolant is fed watercooling jacket, to the cooling of lowering the temperature of transition section flue, the flue gas flow rate of controlling the copper smelter smoke outlet simultaneously is 6～8m/s; The melt splash and the knot dirt speed of fusion flue dust in the transition section flue that slow down and carry in the flue dust; Impel most of melt splash of carrying in the flue gas and fusion flue dust to fall and be back in the copper smelter, reduce the melt splash of carrying in the flue dust that gets in the funnel uptake and the amount of fusion flue dust.
2. raising copper smelter processing low-grade as claimed in claim 1, composition complicacy are gone into the method for stove material ability, it is characterized in that, after dung appears in the funnel uptake inwall, do not need pressure release to clear up this dung through blowing out.
3. raising copper smelter processing low-grade as claimed in claim 1, composition complicacy are gone into the method for stove material ability, it is characterized in that, and in the production process, be that 0.2MPa, temperature are 30～60 ℃ water coolant feeding watercooling jacket with pressure.
4. go into the method for stove material ability like claim 1 or 3 described raising copper smelter processing low-grade, composition complicacy, it is characterized in that described watercooling jacket is the cathode copper water jacket of the pre-buried casting of copper pipe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103292587A CN102828048A (en) | 2012-09-07 | 2012-09-07 | Method for improving smelting furnace capacity for treating low-grade entering-furnace materials with complex components |
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| CN2012103292587A CN102828048A (en) | 2012-09-07 | 2012-09-07 | Method for improving smelting furnace capacity for treating low-grade entering-furnace materials with complex components |
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Citations (8)
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|---|---|---|---|---|
| CN1058808A (en) * | 1991-08-16 | 1992-02-19 | 白银有色金属公司 | The double chamber furnace for matte melting compartment smelting type |
| CN201145261Y (en) * | 2007-11-28 | 2008-11-05 | 中国恩菲工程技术有限公司 | Exhaust-heat boiler and boiler body thereof |
| CN201149441Y (en) * | 2007-11-06 | 2008-11-12 | 金川集团有限公司 | Cooling jacket for smoke-smelting outlet |
| CN101451703A (en) * | 2007-11-28 | 2009-06-10 | 中国恩菲工程技术有限公司 | Exhaust-heating boiler and furnace body thereof |
| CN201729860U (en) * | 2010-06-07 | 2011-02-02 | 中国瑞林工程技术有限公司 | Feeding equipment of anode refining furnace |
| CN201935581U (en) * | 2011-01-20 | 2011-08-17 | 长沙有色冶金设计研究院有限公司 | Copper jacket cooling device for oxygen enrichment side-blown converter |
| CN202081154U (en) * | 2011-05-25 | 2011-12-21 | 长沙有色冶金设计研究院有限公司 | Oxygen side-blowing continuous converting furnace |
| CN202390398U (en) * | 2011-12-29 | 2012-08-22 | 武汉凯迪工程技术研究总院有限公司 | Water cooling flue device for biomass gasifying and cooling system |
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2012
- 2012-09-07 CN CN2012103292587A patent/CN102828048A/en active Pending
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| CN1058808A (en) * | 1991-08-16 | 1992-02-19 | 白银有色金属公司 | The double chamber furnace for matte melting compartment smelting type |
| CN201149441Y (en) * | 2007-11-06 | 2008-11-12 | 金川集团有限公司 | Cooling jacket for smoke-smelting outlet |
| CN201145261Y (en) * | 2007-11-28 | 2008-11-05 | 中国恩菲工程技术有限公司 | Exhaust-heat boiler and boiler body thereof |
| CN101451703A (en) * | 2007-11-28 | 2009-06-10 | 中国恩菲工程技术有限公司 | Exhaust-heating boiler and furnace body thereof |
| CN201729860U (en) * | 2010-06-07 | 2011-02-02 | 中国瑞林工程技术有限公司 | Feeding equipment of anode refining furnace |
| CN201935581U (en) * | 2011-01-20 | 2011-08-17 | 长沙有色冶金设计研究院有限公司 | Copper jacket cooling device for oxygen enrichment side-blown converter |
| CN202081154U (en) * | 2011-05-25 | 2011-12-21 | 长沙有色冶金设计研究院有限公司 | Oxygen side-blowing continuous converting furnace |
| CN202390398U (en) * | 2011-12-29 | 2012-08-22 | 武汉凯迪工程技术研究总院有限公司 | Water cooling flue device for biomass gasifying and cooling system |
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Application publication date: 20121219 |