CN1730673A - Slag cleaning furnace top-blown immersion technology - Google Patents
Slag cleaning furnace top-blown immersion technology Download PDFInfo
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- CN1730673A CN1730673A CN 200510010980 CN200510010980A CN1730673A CN 1730673 A CN1730673 A CN 1730673A CN 200510010980 CN200510010980 CN 200510010980 CN 200510010980 A CN200510010980 A CN 200510010980A CN 1730673 A CN1730673 A CN 1730673A
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Abstract
Disclosed is a slag-cleaning furnace top-blown immersion technology which comprises using the oil-gas mixture formed from 0# diesel or 0# diesel and compressed air as the reducing agent, inputting oil amount of the oil spray gun into DCS system, spraying into fondant under the control of an automatic regulating valve, inputting compressed air and regulated wind amount based on deacidizing degree and atmosphere in the furnace, conveying the reducing agent to pipes controlled by the automatic regulating valve, inserting the oil spray gun into the fused bath from the top of the furnace and immersing into the fondant, deacidizing the magnetic iron oxide through blowing the reducing agent into fondant by means of top-blowing pattern. The invention can improve deacidizing efficiency substantially.
Description
Technical field
The present invention relates to strong oxidizing semlting slag and in slag cleaning furnace, realize reduction martial ethiops (Fe
3O
4) technology, particularly a kind of slag cleaning furnace top-blown immersion technology.
Background technology
At present, increasing manufacturer has adopted strong oxidizing semlting technology, and the negative impact that strong oxidizing semlting is brought is exactly that martial ethiops is enriched in the slag, make slag viscosity become big, make copper in the subsequent technique, slag not easily separated, the slag cupric raises, and easily produces dross in stove, influence effective usable floor area of siege, even hinder carrying out smoothly of slag cleaning furnace technology.
At present, what the slag cleaning furnace of more domestic manufacturers adopted is to add the solid reduction material to reduce, and the shortcoming of adding solid reduction material is that reduction efficiency is low, energy consumption is high.What some external manufacturers adopted is gaseous reducing agent, and as Sweet natural gas, coal gas or liquefied gas etc., its advantage is the reduction efficiency height, but the restriction that it is subjected to geographical conditions is difficult for use, and has bigger potential safety hazard under hot environment.
Summary of the invention
Deficiency at above-mentioned prior art exists the invention provides a kind of slag cleaning furnace top-blown immersion technology, with 0
#Diesel oil or 0
#It is reductive agent that diesel oil adds compressed-air actuated gas-oil mixture, reductive agent is delivered to the pipeline of automatic regulating valve control, pipeline is connected with oil atomizer gun, and oil atomizer gun is immersed among the melt from insertion molten bath, body of heater top, adopts the top blast mode that injection of reducing agent is blown into and contains martial ethiops (Fe
3O
4) slag in reduce.
The present invention has improved the reduction efficiency of reductive agent greatly, effectively improves the electric furnace slag flowability, reduces the electric furnace slag cupric, and can alleviate, handle the furnace wall dross, effectively guarantees carrying out smoothly of slag cleaning furnace technology.
In using technology provided by the invention, determine the every required oil mass of oil gun according to slag martial ethiops detected result, when magnetic oxygenated iron level reaches 8～12% in the electric furnace slag, 80～130 liters/hour of control oil atomizer gun oil masses will spray into melt by automatic regulating valve control after the oil atomizer gun oil mass input DCS system; Allocated into pressurized air and regulated air quantity by reducing degree and furnace atmosphere, the compression air quantity is controlled at 600～1100Nm
3/ hour.0
#Diesel oil or gas-oil mixture are subjected to the preheating of furnace high-temperature atmosphere and melt temperature arrive inner this section process of melt from furnace roof, reach certain atomizing effect when come out in the spray gun end, thereby avoided 0 as far as possible
#Diesel oil directly contacts with the furnace high-temperature air and causes combustion loss, therefore can obtain better reduction efficiency, and avoid adopting high temperature to come the energy loss of melt portions solid reductant, with respect to existing solid and gaseous reducing agent, greatly reduce energy consumption, potential safety hazard and use cost.
In the technical solution adopted in the present invention: with oil pump with 0 in the oil depot
#Diesel oil is delivered to the pipeline of automatic regulating valve control, and pipeline is connected with oil gun with metallic hose, insulation leather hose, and oil gun length is selected according to melt pool height and depth of penetration, and oil atomizer gun is threaded by rifle head and two sections employings of the body of a gun and forms, and is convenient to change; Oil atomizer gun is divided into single hose spray gun and the transfer pressure oil and compressed-air actuated double braid covering tubular type spray gun of a transfer pressure oil, and latter's outer tube is sent pressurized air, inner tube pressurization pressure oil.The oil gun usage quantity is selected to be controlled at 1～5, with being controlled by automatic regulating valve after the oil gun oil mass input DCS system, whether allocates compress wind and air quantity and manual regulation into by reducing degree and furnace atmosphere decision, and spray gun inserts melt 500～800mm.Because 0
#Diesel oil directly sprays into melt, do not contact with the furnace high-temperature air, therefore can improve reduction efficiency greatly, spray into the back and form stronger stirring with melt on every side, reaction kinetics is accelerated, regulate furnace atmosphere with airduct, avoid forming in the stove life-span that stronger reducing atmosphere has influence on fire resisting material of furnace body; And then adopt big air quantity to cooperate little oil mass to handle for the dross that has formed in the stove.
Description of drawings
Fig. 1 is a workflow synoptic diagram of the present invention.
Fig. 2 only uses 0 shown in the embodiment one
#The sectional structure chart of oil atomizer gun when diesel oil is unworthy of pressurized air as reductive agent.
Fig. 3 is the oil atomizer gun sectional structure chart that uses when making reductive agent with gas-oil mixture.
The invention will be further described below in conjunction with accompanying drawing.1 is storage tank among Fig. 1, the 2,3,5,6,8,9,11,13,15,17,19,22,23,25,26,27,29,35,36,38, the 40th, and stopping valve, the 4, the 7th, strainer, 10, the 14, the 18th, oil pump, 12,16,20 vacuum breaker, the 21,30, the 39th, ball valve, the 24th, under meter, the 28th, magnetic valve, the 31st, metallic hose, the 32nd, insulation leather hose, the 33rd, oil atomizer gun, the 34th, molten bath, the 37th, pressure controlled valve.The pressure control circuit of pipeline when wherein loop shown in 35～38 is normal the use; Loop shown in 21 is the pipeline leakage passage in when maintenance, and 39 are depicted as and adopt compress wind to purge 39 later pipeline and oil guns when stopping using.
Among Fig. 2, Fig. 3, oil atomizer gun 33 is threaded by rifle head 41 and 42 two sections employings of the body of a gun and forms, " ball valve is as pressure release valve 43, and effect is: take place in the use to be used for draining the oil that remains in pipeline and the oil gun when oil gun end is stopped up by the melt in the molten bath to be equipped with 3/8 in rifle head section.
Embodiment
Embodiment 1: be unworthy of compress wind
In Fig. 1, Fig. 2,0
#Diesel oil comes out through boosting with oil pump 10,14,18 after filter 4 or 7 filtrations from storage tank 1, and the pressure control circuit that constitutes by pipeline 35,36,37,38 carries out the flow 28 of pressure adjusting back according to setting.During magnetic oxygenated iron level 10%, the oil gun oil mass is 120 liters/hour in the electric furnace slag, and oil gun uses 3,0
#Diesel oil process metallic hose 31 and insulation leather hose 32 are to oil gun 33 fuel feeding, 0
#Diesel oil through igniting in advance after, oil gun insert from the body of heater top molten bath inner and in the molten bath 34 pairs of martial ethiopss realize the winding-up reduction processes, spray gun inserts melt 500～800mm.Close magnetic valve 28 or stopping valve 26 earlier when finishing the winding-up reduction, open ball valve 39 usefulness compress wind then pipeline 30,31,32 and oil gun 33 are purged, prevent 0 in the pipeline
#The phenomenon of pipeline takes place to block in the diesel oil carbonization.
Embodiment 2: join compress wind.In Fig. 1 and Fig. 3,0
#Diesel oil comes out through boosting with oil pump 10 or 14 or 18 after filter 4 or 7 filtrations from storage tank 1, carry out pressure by pressure control circuit 35,36,37,38 and regulate the back according to the flow of setting 28, for example, in the slag during magnetic oxygenated iron level 8.5%, the oil gun oil mass is 100 liters/hour, use 2 oil guns, 0
#Diesel oil process metallic hose 31 and insulation leather hose 32 are opened stopping valve 40 as required and are allocated compress wind into to oil gun 33 fuel feeding, and air quantity is controlled at 600～1100Nm
3/ hour, the compress wind of allocating into and 0
#Diesel oil is finished mixing in the rifle head part, mixed oil, gas mixture are through after lighting a fire in advance, oil gun inserts inside, molten bath from the body of heater top, spray gun inserts melt 500～800mm, and in the molten bath 34 burning and vigorous agitation molten baths, realize the local heating in molten bath to melt dross and the winding-up reduction process of part martial ethiops.Close ball valve 40 and magnetic valve 28 or stopping valve 26 earlier when finishing the winding-up reduction, open ball valve 39 usefulness compress wind then pipeline 30,31,32 and oil gun 33 are purged, prevent 0 in the pipeline
#The phenomenon of pipeline takes place to block in the diesel oil carbonization.
Claims (6)
1, a kind of slag cleaning furnace top-blown immersion technology is with 0
#Diesel oil or 0
#The gas-oil mixture that diesel oil adds the formation of compression air is a reductive agent, reductive agent is delivered to the pipeline of automatic regulating valve control, pipeline is connected with oil atomizer gun, oil atomizer gun is immersed among the melt from insertion molten bath, body of heater top, adopts the top blast mode that injection of reducing agent is blown into melt martial ethiops is reduced.
2, technology according to claim 1 is characterized in that: the living iron oxide content of magnetic reaches at 8～12% o'clock in the electric furnace slag, and 80～130 liters/hour of control oil atomizer gun oil masses will spray into melt by automatic regulating valve control after the oil atomizer gun oil mass input DCS system; Allocated into pressurized air and regulated air quantity by reducing degree and furnace atmosphere, the compression air quantity is controlled at 600～1100Nm
3/ hour.
3, technology according to claim 1 is characterized in that: oil atomizer gun is threaded by rifle head and two sections employings of the body of a gun and forms.
4, technology according to claim 1 is characterized in that: oil atomizer gun inserts melt 500～800mm, and usage quantity is 1～5.
5, technology according to claim 4 is characterized in that: oil atomizer gun is the single hose spray gun of transfer pressure oil.
6, technology according to claim 4 is characterized in that: oil atomizer gun is transfer pressure oil and compressed-air actuated double braid covering tubular type spray gun, and outer tube is sent pressurized air, inner tube pressurization pressure oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100109804A CN100396797C (en) | 2005-08-26 | 2005-08-26 | Slag cleaning furnace top-blown immersion technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100109804A CN100396797C (en) | 2005-08-26 | 2005-08-26 | Slag cleaning furnace top-blown immersion technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1730673A true CN1730673A (en) | 2006-02-08 |
| CN100396797C CN100396797C (en) | 2008-06-25 |
Family
ID=35963094
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100109804A Active CN100396797C (en) | 2005-08-26 | 2005-08-26 | Slag cleaning furnace top-blown immersion technology |
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|---|---|
| CN (1) | CN100396797C (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102888509A (en) * | 2012-10-11 | 2013-01-23 | 云南铜业股份有限公司 | Heavy oil and nitrogen injection reduction method and reduction nitrogen gun |
| CN103276222A (en) * | 2013-05-15 | 2013-09-04 | 大冶有色金属有限责任公司 | Technical method and device for treating diaphragm and freezing layer in subsiding electric furnace through pulverized coal in copper pyrometallurgical process |
| CN103409575A (en) * | 2013-08-13 | 2013-11-27 | 昆明理工大学 | Reducing agent for slag cleaning furnace top-blown immersion blowing reduction |
| CN104232907A (en) * | 2014-09-05 | 2014-12-24 | 昆明理工大学 | Top-side blowing parameter control method of depletion electric furnace |
| CN104327885A (en) * | 2014-10-10 | 2015-02-04 | 昆明理工大学 | Hogwash oil mixed oil fuel reducing agent applied to metallurgy pyrometallurgical process |
| CN106191469A (en) * | 2016-08-30 | 2016-12-07 | 中冶华天南京工程技术有限公司 | A kind of magnesium oxide spray gun |
| CN106868310A (en) * | 2017-01-18 | 2017-06-20 | 昆明理工大学 | A kind of drastic reduction copper slag method of eddy flow chaos nitrogen-blow and biomass fuel |
| CN107449697A (en) * | 2017-08-01 | 2017-12-08 | 昆明理工大学 | A kind of laser testing device and method of the fuel-flooded atomizing particle dispersing characteristic based on fluorescent tracing |
| CN107586968A (en) * | 2017-09-19 | 2018-01-16 | 昆明理工大学 | A kind of the copper ashes processing system and method for the oxygen-enriched submergence injection of blended fuel oil |
| CN111455193A (en) * | 2020-04-10 | 2020-07-28 | 云南铜业股份有限公司西南铜业分公司 | Magnetic iron reduction method for electric dilution furnace |
Families Citing this family (1)
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| CN103743240B (en) * | 2014-01-16 | 2015-05-20 | 昆明理工大学 | Device for simulating metallurgy kiln stirring and mixing visualized process |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1269960A (en) * | 1985-09-13 | 1990-06-05 | Hiroshi Matsumura | Liquid delivery nozzle |
| EP0431093A1 (en) * | 1989-05-10 | 1991-06-12 | Alcan International Limited | Poppet valve manufacture |
| CN2215654Y (en) * | 1995-02-27 | 1995-12-20 | 王珂伟 | Full-automatic oil-jetting lubricating device |
| CN1234054C (en) * | 2002-08-30 | 2005-12-28 | 王建 | In-situ catalytic cracking control system based on correlation integration |
-
2005
- 2005-08-26 CN CNB2005100109804A patent/CN100396797C/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102888509A (en) * | 2012-10-11 | 2013-01-23 | 云南铜业股份有限公司 | Heavy oil and nitrogen injection reduction method and reduction nitrogen gun |
| CN103276222A (en) * | 2013-05-15 | 2013-09-04 | 大冶有色金属有限责任公司 | Technical method and device for treating diaphragm and freezing layer in subsiding electric furnace through pulverized coal in copper pyrometallurgical process |
| CN103409575A (en) * | 2013-08-13 | 2013-11-27 | 昆明理工大学 | Reducing agent for slag cleaning furnace top-blown immersion blowing reduction |
| CN104232907A (en) * | 2014-09-05 | 2014-12-24 | 昆明理工大学 | Top-side blowing parameter control method of depletion electric furnace |
| CN104327885A (en) * | 2014-10-10 | 2015-02-04 | 昆明理工大学 | Hogwash oil mixed oil fuel reducing agent applied to metallurgy pyrometallurgical process |
| CN106191469A (en) * | 2016-08-30 | 2016-12-07 | 中冶华天南京工程技术有限公司 | A kind of magnesium oxide spray gun |
| CN106191469B (en) * | 2016-08-30 | 2018-01-23 | 中冶华天南京工程技术有限公司 | A kind of magnesia spray gun |
| CN106868310A (en) * | 2017-01-18 | 2017-06-20 | 昆明理工大学 | A kind of drastic reduction copper slag method of eddy flow chaos nitrogen-blow and biomass fuel |
| CN107449697A (en) * | 2017-08-01 | 2017-12-08 | 昆明理工大学 | A kind of laser testing device and method of the fuel-flooded atomizing particle dispersing characteristic based on fluorescent tracing |
| CN107586968A (en) * | 2017-09-19 | 2018-01-16 | 昆明理工大学 | A kind of the copper ashes processing system and method for the oxygen-enriched submergence injection of blended fuel oil |
| CN111455193A (en) * | 2020-04-10 | 2020-07-28 | 云南铜业股份有限公司西南铜业分公司 | Magnetic iron reduction method for electric dilution furnace |
| CN111455193B (en) * | 2020-04-10 | 2022-08-05 | 云南铜业股份有限公司西南铜业分公司 | Magnetic iron reduction method for electric dilution furnace |
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| CN100396797C (en) | 2008-06-25 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20060208 Assignee: Yimen Tong Ye Co., Ltd Assignor: Yunnan Copper Industry Co., Ltd. Contract record no.: 2015530000009 Denomination of invention: Slag cleaning furnace top-blown immersion technology Granted publication date: 20080625 License type: Exclusive License Record date: 20150309 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Yimen Tong Ye Co., Ltd Assignor: Yunnan Copper Industry Co., Ltd. Contract record no.: 2015530000009 Date of cancellation: 20150507 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model |