CN106978535B - A kind of blow-in method with waste heat boiler fuming furnace - Google Patents
A kind of blow-in method with waste heat boiler fuming furnace Download PDFInfo
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- CN106978535B CN106978535B CN201710164749.3A CN201710164749A CN106978535B CN 106978535 B CN106978535 B CN 106978535B CN 201710164749 A CN201710164749 A CN 201710164749A CN 106978535 B CN106978535 B CN 106978535B
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/16—Dry methods smelting of sulfides or formation of mattes with volatilisation or condensation of the metal being produced
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B13/00—Obtaining lead
- C22B13/02—Obtaining lead by dry processes
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B13/00—Obtaining lead
- C22B13/02—Obtaining lead by dry processes
- C22B13/025—Recovery from waste materials
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/04—Obtaining zinc by distilling
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/30—Obtaining zinc or zinc oxide from metallic residues or scraps
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/001—Dry processes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The invention discloses a kind of blow-in method with waste heat boiler fuming furnace, the method is heated by high pressure steam heating fuming furnace waste heat boiler water, then with fine coal, is finally directly added into hot slag, is realized the safe blow-on with waste heat boiler fuming furnace.The blow-in method of the present invention is easy safely, effectively realizes the safe blow-on with waste heat boiler fuming furnace, while realizes the safe operation with waste heat boiler；The present invention adds in fuming furnace waste heat boiler drum using external high pressure steam pipe, and than being heated using firewood, coke, the time is short, and low energy consumption, while can ensure fuming furnace waste heat boiler safe operation.
Description
Technical field
The invention belongs to metallurgical technology fields, and in particular to a kind of blow-in method with waste heat boiler fuming furnace.
Background technology
Material containing zincs, the follow-up pyrogenic processing methods such as lead zinc mineral intergrowth, zinc wet method slag mainly have kiln process and fuming furnace
Method.It is handled using kiln process, there is a problems such as ability is relatively low, and energy consumption is higher, and environmental pollution is larger, waste heat recovery is difficult.Mesh
It is preceding that mainstream technology is increasingly becoming using fuming oven process volatilization lead zinc alloying technology.In recent years, fuming furnace lead, copper, tin, nickel and
The field of metallurgy such as steel are reached its maturity.The method that side-blown converter all cold charge makes molten bath, has had been reported that.Band waste heat boiler fuming
The blow-in method of stove is not reported.General fuming furnace blow-on, enters fuming furnace by reduction furnace or electric furnace hot slag, then, opens
Dynamic feeder is to coal, igniting, with regard to that can complete fuming furnace blow-on.
Fuming furnace in processing lead zinc mineral intergrowth, the material containing zincs such as zinc wet method slag, in order to effectively recycle the valuable metals such as zinc and
Recovery waste heat, general fuming furnace are all had a surplus heat boiler recovery waste heat.Fuming furnace tradition heating mode is to utilize reduction furnace or electric furnace
Hot slag（t≥1100℃）It is directly added by hot feed mouth in fuming furnace, it is first a small amount of to add when tertiary air orifice has red slightly
Enter fine coal igniting, fire box temperature can be raised to 1150 DEG C or so, such temperature gradient waste heat in 10~20 minutes from room temperature
Boiler can not be born, and Wen Sheng is no more than 40 DEG C per hour for waste heat boiler stove water, for fuming furnace safe operation, so must examine
Consider other heating modes.
The content of the invention
It is an object of the invention to provide a kind of blow-in methods with waste heat boiler fuming furnace
The object of the present invention is achieved like this, comprises the following steps：
1）External high pressure steam pipe is accessed in fuming furnace waste heat boiler drum first, starts fuming furnace forced circulation pump,
Heating adjusts level control valve, and fuming furnace waste heat boiler drum is made to keep ordinary water level, that is, water level is kept to be more than 60%；
2）External high pressure steam pipe heating steam pipe is opened, is heated up by 10~40 DEG C/h, heat up 3~14h, and stove coolant-temperature gage is protected
It holds at 130~160 DEG C, pressure rises to 0.27~0.62MPa, opens stop valve aperture 3~5%, and heating coil is carried out to steam pipe；
3）5~20t of material containing zinc paving furnace bottoms are added in from fuming furnace cold burden mouth；
4）1~5t of firewood is put into fuming furnace, igniting makes fuming furnace in-furnace temperature be raised to 160~190 DEG C, waste heat pot
Stove drum boosts to 0.62~1.25MPa；
5）Heating steam pipe is closed, keeps fuming furnace waste heat boiler 0.62~1.25MPa of drum pressure, opens fuming furnace heat
Material mouth adds in hot slag to fuming furnace, is directly added by hot material mouth in fuming furnace, after 5~10min, when tertiary air orifice is pico-
When having red, fine coal igniting is added in, point catches fire after 10~20min, and fuming furnace furnace temperature is raised to 1000~1200 DEG C, thus completes
Fuming furnace blow-on, then can carry out the normal fuming furnace operation of next round.
Compared with prior art, beneficial effects of the present invention are：
1st, blow-in method of the invention is easy safely, effectively realizes the safe blow-on with waste heat boiler fuming furnace, while real
The safe operation with waste heat boiler is showed.
2nd, the present invention adds in fuming furnace waste heat boiler drum using external high pressure steam pipe, than being heated using firewood, coke,
Time is short, and low energy consumption, while can ensure fuming furnace waste heat boiler safe operation.
Description of the drawings
Fig. 1 is present invention process flow chart.
Specific embodiment
With reference to embodiment and attached drawing, the present invention is further illustrated, but the present invention is not subject in any way
Limitation, based on present invention teach that any conversion or replacement made, all belong to the scope of protection of the present invention.
Blow-in method of the present invention with waste heat boiler fuming furnace, comprises the following steps：
1）External high pressure steam pipe is accessed in fuming furnace waste heat boiler drum first, starts fuming furnace forced circulation pump,
Heating adjusts level control valve, makes fuming furnace waste heat boiler drum that water level be kept to be more than 60%；
2）External high pressure steam pipe heating steam pipe is opened, is heated up by 10~40 DEG C/h, heat up 3~14h, and stove coolant-temperature gage is protected
It holds at 130~160 DEG C, pressure rises to 0.27~0.62MPa, opens stop valve aperture 3~5%, and heating coil is carried out to steam pipe；
3）5~20t of material containing zinc paving furnace bottoms are added in from fuming furnace cold burden mouth；
4）1~5t of firewood is put into fuming furnace, igniting makes fuming furnace in-furnace temperature be raised to 160~190 DEG C, waste heat pot
Stove drum boosts to 0.62~1.25MPa；
5）Heating steam pipe is closed, keeps fuming furnace waste heat boiler 0.62~1.25MPa of drum pressure, opens fuming furnace heat
Material mouth adds in hot slag to fuming furnace, is directly added by hot material mouth in fuming furnace, after 5~10min, when tertiary air orifice is pico-
When having red, fine coal igniting is added in, point catches fire after 10~20min, and fuming furnace furnace temperature is raised to 1000~1200 DEG C, thus completes
Fuming furnace blow-on, then can carry out the normal fuming furnace operation of next round.
Step（3）Described in material containing zinc be lead zinc mineral intergrowth and/or zinc wet method slag.
The ingredient of the lead zinc mineral intergrowth is Pb：2~5%, Zn：11~25%, S：0.3~1%, SiO2：10~13%,
CaO：10~14%.
The ingredient of the zinc wet method slag is Pb：4~8%, Zn：14~22%, S：4~8%, SiO2：3~6%, CaO：1~
2%。
Step（4）Described in igniting to use cotton yarn and diesel ignition.
Step（5）Described in hot slag be reduction furnace hot slag and/or electric furnace hot slag.
Step（5）Described in hot slag ingredient be Pb：2~4%, Zn：8~12%, S：0.2~1.2%, SiO2：20~
24%、CaO：10~14%.
Embodiment 1
First, external high pressure steam pipe is accessed in fuming furnace waste heat boiler drum, starts fuming furnace forced circulation pump, risen
Warm process should be noted that boiler drum water level changes, and adjust level control valve, and fuming furnace waste heat boiler drum is made to keep ordinary water level.
Then, external high pressure steam pipe heating steam pipe is opened, is heated up by 10 DEG C/h, heat up 11h, and stove coolant-temperature gage is maintained at
140 DEG C, pressure rises to 0.36MPa, opens stop valve aperture 3%, and heating coil is carried out to steam pipe.
Lead zinc mineral intergrowth is added in from fuming furnace cold burden mouth（Ingredient Pb：2%、Zn： 25%、S：0.3%、SiO2：10%、CaO：
10%）, zinc wet method slag（Ingredient Pb：4%, Zn：16%、S：8%、SiO2：3%、CaO：1%）Wait material containing zincs 5t paving furnace bottoms.To fuming
Input firewood 2t, with cotton yarn and diesel ignition, makes fuming furnace in-furnace temperature be raised to 160 DEG C, waste heat boiler drum boosts in stove
0.62MPa.Heating steam pipe is closed, keeps fuming furnace waste heat boiler drum pressure 0.62MPa, opens fuming furnace hot material mouth, to
Fuming furnace adds in reduction furnace hot slag（Ingredient Pb：2%, Zn：8%、S：0.2%、SiO2：24%、CaO：14%）, it is straight by hot material mouth
It connects and adds in fuming furnace, after 10min, when tertiary air orifice has red slightly, add in fine coal igniting, point catches fire after 20min, fuming
Stove furnace temperature is raised to 1000 DEG C, and this completes fuming furnace blow-ons, then carry out the normal fuming furnace operation of next round.
Embodiment 2
First, external high pressure steam pipe is accessed in fuming furnace waste heat boiler drum, starts fuming furnace forced circulation pump, risen
Warm process should be noted that boiler drum water level changes, and adjust level control valve, and fuming furnace waste heat boiler drum is made to keep ordinary water level.
Then, external high pressure steam pipe heating steam pipe is opened, is heated up by 20 DEG C/h, heat up 6h, and stove coolant-temperature gage is maintained at
150 DEG C, pressure rises to 0.48MPa, opens stop valve aperture 4%, and heating coil is carried out to steam pipe.
Lead zinc mineral intergrowth is added in from fuming furnace cold burden mouth（Ingredient Pb：3%、Zn：18%、S：0.7%、SiO2：12%、CaO：
12%）, zinc wet method slag（Ingredient Pb：6%, Zn：20%、S：6%、SiO2：5%、CaO：1.5%）Wait material containing zincs 15t paving furnace bottoms.To cigarette
Change input firewood 3t in stove, with cotton yarn and diesel ignition, fuming furnace in-furnace temperature is made to be raised to 175 DEG C, the boosting of waste heat boiler drum
To 0.89MPa.Heating steam pipe is closed, keeps fuming furnace waste heat boiler drum pressure 0.89MPa, opens fuming furnace hot material mouth,
Electric furnace hot slag is added in fuming furnace（Ingredient Pb：3%, Zn：10%、S：0.6%、SiO2：22%、CaO：12%）, it is straight by hot material mouth
It connects and adds in fuming furnace, after 8min, when tertiary air orifice has red slightly, add in fine coal igniting, point catches fire after 15min, fuming
Stove furnace temperature is raised to 1100 DEG C, and this completes fuming furnace blow-ons, then carry out the normal fuming furnace operation of next round.
Embodiment 3
First, external high pressure steam pipe is accessed in fuming furnace waste heat boiler drum, starts fuming furnace forced circulation pump, risen
Warm process should be noted that boiler drum water level changes, and adjust level control valve, and fuming furnace waste heat boiler drum is made to keep ordinary water level.
Then, external high pressure steam pipe heating steam pipe is opened, is heated up by 30 DEG C/h, heat up 4.5h, and stove coolant-temperature gage is kept
At 160 DEG C, pressure rises to 0.62MPa, opens stop valve aperture 5%, and heating coil is carried out to steam pipe.
Lead zinc mineral intergrowth is added in from fuming furnace cold burden mouth（Ingredient Pb：5%、Zn：11%、S：1%、SiO2：13%、CaO：14%）、
Zinc wet method slag（Ingredient Pb：8%, Zn：22%、S：4%、SiO2： 8%、CaO：2%）Wait material containing zincs 20t paving furnace bottoms.Into fuming furnace
Firewood 5t is put into, with cotton yarn and diesel ignition, fuming furnace in-furnace temperature is made to be raised to 190 DEG C, waste heat boiler drum boosts to
1.25MPa.Heating steam pipe is closed, keeps fuming furnace waste heat boiler drum pressure 1.25MPa, opens fuming furnace hot material mouth, to
Fuming furnace adds in electric furnace hot slag（Ingredient Pb：4%, Zn：12%、S：1.2%、SiO2：20%、CaO：10%）, it is direct by hot material mouth
It adds in fuming furnace, after 5min, when tertiary air orifice has red slightly, adds in fine coal igniting, point catches fire after 20min, fuming furnace
Furnace temperature is raised to 1200 DEG C, and this completes fuming furnace blow-ons, then carry out the normal fuming furnace operation of next round.
Embodiment 4
1）External high pressure steam pipe is accessed in fuming furnace waste heat boiler drum first, starts fuming furnace forced circulation pump,
Heating adjusts level control valve, makes fuming furnace waste heat boiler drum that water level be kept to be more than 60%；
2）External high pressure steam pipe heating steam pipe is opened, is heated up by 10 DEG C/h, heat up 3h, and stove coolant-temperature gage is maintained at 130
DEG C, pressure rises to 0.27MPa, opens stop valve aperture 3%, and heating coil is carried out to steam pipe；
3）Material containing zinc 5t paving furnace bottoms are added in from fuming furnace cold burden mouth；The material containing zinc is lead zinc mineral intergrowth；It is described
Lead zinc mineral intergrowth ingredient include Pb：2%、Zn：11%、S：0.3%、SiO2：10%、CaO：10%；
4）Firewood 1t is put into fuming furnace, igniting makes fuming furnace in-furnace temperature be raised to 160 DEG C, waste heat boiler drum liter
It is depressed into 0.62MPa；
5）Heating steam pipe is closed, keeps fuming furnace waste heat boiler drum pressure 0.62MPa, opens fuming furnace hot material mouth,
To fuming furnace add in hot slag, the hot slag be reduction furnace hot slag, ingredient Pb：2%, Zn：8%、S：0.2%、SiO2：
20%、CaO：10%；It is directly added by hot material mouth in fuming furnace, after 5min, when tertiary air orifice has red slightly, adds in fine coal
Igniting, point catch fire after 10min, and fuming furnace furnace temperature is raised to 1000 DEG C, and this completes fuming furnace blow-ons, then can carry out down
The normal fuming furnace operation of one wheel.
Embodiment 5
1）External high pressure steam pipe is accessed in fuming furnace waste heat boiler drum first, starts fuming furnace forced circulation pump,
Heating adjusts level control valve, makes fuming furnace waste heat boiler drum that water level be kept to be more than 60%；
2）External high pressure steam pipe heating steam pipe is opened, is heated up by 20 DEG C/h, heat up 5h, and stove coolant-temperature gage is maintained at 140
DEG C, pressure rises to 0.30MPa, opens stop valve aperture 3.5%, and heating coil is carried out to steam pipe；
3）Material containing zinc 10t paving furnace bottoms are added in from fuming furnace cold burden mouth；The material containing zinc is lead zinc mineral intergrowth；It is described
Lead zinc mineral intergrowth ingredient be Pb：5%、Zn： 25%、S：1%、SiO2：13%、CaO：14%；
4）Firewood 2t is put into fuming furnace, igniting using cotton yarn and diesel ignition, is raised to fuming furnace in-furnace temperature
170 DEG C, waste heat boiler drum boosts to 0.80MPa；
5）Heating steam pipe is closed, keeps fuming furnace waste heat boiler drum pressure 0.80MPa, opens fuming furnace hot material mouth,
To fuming furnace add in hot slag, the hot slag be electric furnace hot slag, ingredient Pb：4%, Zn：12%、S：1.2%、SiO2：
24%、CaO：14%；It is directly added by hot material mouth in fuming furnace, after 6min, when tertiary air orifice has red slightly, adds in fine coal
Igniting, point catch fire after 12min, and fuming furnace furnace temperature is raised to 1080 DEG C, and this completes fuming furnace blow-ons, then can carry out down
The normal fuming furnace operation of one wheel.
Embodiment 6
1）External high pressure steam pipe is accessed in fuming furnace waste heat boiler drum first, starts fuming furnace forced circulation pump,
Heating adjusts level control valve, makes fuming furnace waste heat boiler drum that water level be kept to be more than 60%；
2）External high pressure steam pipe heating steam pipe is opened, is heated up by 30 DEG C/h, heat up 7h, and stove coolant-temperature gage is maintained at 150
DEG C, pressure rises to 0.50MPa, opens stop valve aperture 4%, and heating coil is carried out to steam pipe；
3）Material containing zinc 15t paving furnace bottoms are added in from fuming furnace cold burden mouth；The material containing zinc is zinc wet method slag；Described
The ingredient of zinc wet method slag is Pb：4%, Zn：14%、S：4%、SiO2：3%、CaO：1%；
4）Firewood 3t is put into fuming furnace, using cotton yarn and diesel ignition, fuming furnace in-furnace temperature is made to be raised to 180 DEG C,
Waste heat boiler drum boosts to 1.00MPa；
5）Heating steam pipe is closed, keeps fuming furnace waste heat boiler drum pressure 1.00MPa, opens fuming furnace hot material mouth,
To fuming furnace add in hot slag, the hot slag be reduction furnace hot slag and electric furnace hot slag, ingredient Pb：3%, Zn：10%、
S：0.6%、SiO2：22%、CaO：12%；Be directly added by hot material mouth in fuming furnace, after 7min, when tertiary air orifice have slightly it is red
During color, fine coal igniting is added in, point catches fire after 14min, and fuming furnace furnace temperature is raised to 1120 DEG C, this completes fuming furnace blow-on,
Then the normal fuming furnace operation of next round can be carried out.
Embodiment 7
1）External high pressure steam pipe is accessed in fuming furnace waste heat boiler drum first, starts fuming furnace forced circulation pump,
Heating adjusts level control valve, makes fuming furnace waste heat boiler drum that water level be kept to be more than 60%；
2）External high pressure steam pipe heating steam pipe is opened, is heated up by 40 DEG C/h, heat up 14h, and stove coolant-temperature gage is maintained at 160
DEG C, pressure rises to 0.62MPa, opens stop valve aperture 5%, and heating coil is carried out to steam pipe；
3）Material containing zinc 20t paving furnace bottoms are added in from fuming furnace cold burden mouth；The material containing zinc is zinc wet method slag；Described
The ingredient of zinc wet method slag is Pb：8%, Zn： 22%、S：8%、SiO2：6%、CaO：2%；
4）Firewood 5t is put into fuming furnace, using cotton yarn and diesel ignition, fuming furnace in-furnace temperature is made to be raised to 190 DEG C,
Waste heat boiler drum boosts to 1.25MPa；
5）Heating steam pipe is closed, keeps fuming furnace waste heat boiler drum pressure 1.25MPa, opens fuming furnace hot material mouth,
To fuming furnace add in hot slag, the hot slag be reduction furnace hot slag and electric furnace hot slag, ingredient Pb：4%, Zn：
12%、S：1.2%、SiO2：24%、CaO：14%；It is directly added by hot material mouth in fuming furnace, after 10min, when tertiary air orifice is pico-
When having red, fine coal igniting is added in, point catches fire after 20min, and fuming furnace furnace temperature is raised to 1200 DEG C, and this completes fuming furnaces to open
Then stove can carry out the normal fuming furnace operation of next round.
Embodiment 8
1）External high pressure steam pipe is accessed in fuming furnace waste heat boiler drum first, starts fuming furnace forced circulation pump,
Heating adjusts level control valve, makes fuming furnace waste heat boiler drum that water level be kept to be more than 60%；
2）External high pressure steam pipe heating steam pipe is opened, is heated up by 35 DEG C/h, heat up 12h, and stove coolant-temperature gage is maintained at 155
DEG C, pressure rises to 0.56MPa, opens stop valve aperture 4.5%, and heating coil is carried out to steam pipe；
3）Material containing zinc 18t paving furnace bottoms are added in from fuming furnace cold burden mouth；The material containing zinc is lead zinc mineral intergrowth and zinc
Wet method slag；The ingredient of the lead zinc mineral intergrowth is Pb：3%、Zn：15%、S：0.7%、SiO2：11%、CaO：13%；The zinc
The ingredient of wet method slag is Pb：7%, Zn：19%、S：7%、SiO2：5%、CaO：1.8%；
4）Firewood 4.5t is put into fuming furnace, using cotton yarn and diesel ignition, fuming furnace in-furnace temperature is made to be raised to 185
DEG C, waste heat boiler drum boosts to 1.11MPa；
5）Heating steam pipe is closed, keeps fuming furnace waste heat boiler drum pressure 1.11MPa, opens fuming furnace hot material mouth,
To fuming furnace add in hot slag, the hot slag be reduction furnace hot slag and electric furnace hot slag, ingredient Pb：3.5%, Zn：
11%、S：1.1%、SiO2：23%、CaO：13%；It is directly added by hot material mouth in fuming furnace, after 9min, when tertiary air orifice is pico-
When having red, fine coal igniting is added in, point catches fire after 18min, and fuming furnace furnace temperature is raised to 1180 DEG C, and this completes fuming furnaces to open
Then stove can carry out the normal fuming furnace operation of next round.
Claims (7)
1. a kind of blow-in method with waste heat boiler fuming furnace, it is characterised in that the blow-in method comprises the following steps：
1）External high pressure steam pipe is accessed in fuming furnace waste heat boiler drum first, starts fuming furnace forced circulation pump, is risen
Temperature adjusts level control valve, makes fuming furnace waste heat boiler drum that water level be kept to be more than 60%；
2）External high pressure steam pipe heating steam pipe is opened, is heated up by 10~40 DEG C/h, heat up 3~14h, and stove coolant-temperature gage is maintained at
130~160 DEG C, pressure rises to 0.27~0.62MPa, opens stop valve aperture 3~5%, and heating coil is carried out to steam pipe；
3）5~20t of material containing zinc paving furnace bottoms are added in from fuming furnace cold burden mouth；
4）1~5t of firewood is put into fuming furnace, igniting makes fuming furnace in-furnace temperature be raised to 160~190 DEG C, waste heat boiler pot
Cylinder boosts to 0.62~1.25MPa；
5）Heating steam pipe is closed, keeps fuming furnace waste heat boiler 0.62~1.25MPa of drum pressure, opens fuming furnace hot material
Mouthful, hot slag is added in fuming furnace, is directly added by hot material mouth in fuming furnace, after 5~10min, when tertiary air orifice has slightly
When red, fine coal igniting is added in, point catches fire after 10~20min, and fuming furnace furnace temperature is raised to 1000~1200 DEG C, this completes
Then fuming furnace blow-on can carry out the normal fuming furnace operation of next round.
2. the blow-in method according to claim 1 with waste heat boiler fuming furnace, it is characterised in that step（3）Described in
Material containing zinc is lead zinc mineral intergrowth and/or zinc wet method slag.
3. the blow-in method according to claim 2 with waste heat boiler fuming furnace, it is characterised in that the lead zinc symbiosis
The ingredient of ore deposit is Pb：2~5%, Zn：11~25%, S：0.3~1%, SiO2：10~13%, CaO：10~14%.
4. the blow-in method according to claim 2 with waste heat boiler fuming furnace, it is characterised in that the zinc wet method slag
Ingredient be Pb：4~8%, Zn：14~22%, S：4~8%, SiO2：3~6%, CaO：1~2%.
5. the blow-in method according to claim 1 with waste heat boiler fuming furnace, it is characterised in that step（4）Described in
It lights a fire as using cotton yarn and diesel ignition.
6. the blow-in method according to claim 1 with waste heat boiler fuming furnace, it is characterised in that step（5）Described in
Hot slag is reduction furnace hot slag and/or electric furnace hot slag.
7. the blow-in method according to claim 1 with waste heat boiler fuming furnace, it is characterised in that step（5）Described in
The ingredient of hot slag is Pb：2~4%, Zn：8~12%, S：0.2~1.2%, SiO2：20~24%, CaO：10~14%.
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| CN108330294A (en) * | 2018-03-20 | 2018-07-27 | 云南驰宏锌锗股份有限公司 | A kind of four connect the method for stove processing smelting charge of lead and zinc |
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