CN108359819A - Smelting Plant system and Smelting Plant technique - Google Patents
Smelting Plant system and Smelting Plant technique Download PDFInfo
- Publication number
- CN108359819A CN108359819A CN201810185638.5A CN201810185638A CN108359819A CN 108359819 A CN108359819 A CN 108359819A CN 201810185638 A CN201810185638 A CN 201810185638A CN 108359819 A CN108359819 A CN 108359819A
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- rotary kiln
- hot
- manganese
- furnace
- smelting plant
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- 238000003723 Smelting Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 82
- 238000001035 drying Methods 0.000 claims abstract description 46
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 44
- 238000005245 sintering Methods 0.000 claims abstract description 43
- 239000011572 manganese Substances 0.000 claims abstract description 42
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 40
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 36
- 239000011707 mineral Substances 0.000 claims abstract description 36
- 239000000203 mixture Substances 0.000 claims abstract description 33
- 239000000571 coke Substances 0.000 claims abstract description 17
- 239000000843 powder Substances 0.000 claims abstract description 17
- 229910001655 manganese mineral Inorganic materials 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 14
- 238000002844 melting Methods 0.000 claims abstract description 12
- 230000008018 melting Effects 0.000 claims abstract description 12
- 239000000446 fuel Substances 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 239000002817 coal dust Substances 0.000 claims description 16
- 230000003139 buffering effect Effects 0.000 claims description 10
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 238000004321 preservation Methods 0.000 claims description 5
- 206010044565 Tremor Diseases 0.000 claims 1
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 241001062472 Stokellia anisodon Species 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 36
- 239000003034 coal gas Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910001021 Ferroalloy Inorganic materials 0.000 description 3
- 241001417490 Sillaginidae Species 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 239000012774 insulation material Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229910000616 Ferromanganese Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- GEYXPJBPASPPLI-UHFFFAOYSA-N manganese(III) oxide Inorganic materials O=[Mn]O[Mn]=O GEYXPJBPASPPLI-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- 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
- C22B47/00—Obtaining manganese
-
- 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
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/16—Sintering; Agglomerating
-
- 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
- C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
- C22B4/06—Alloys
-
- 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
- C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
- C22B4/08—Apparatus
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of Smelting Plant systems, including：Rotary kiln carries out pre- thermosetting preheating material for receiving manganese lump ore, and to manganese lump ore；Sintering machine, for receiving manganese mineral powder, and manganese mineral powder is sintered to form sintering feed；Drying kiln, for receiving coke, and STRENGTH ON COKE carries out drying and forms drying material；Mineral hot furnace for receiving the mixture formed after the pre- hot material, sintering feed and drying material mixing, and carries out melting to the mixture；Wherein, the mineral hot furnace is equipped with furnace gas export, and the furnace gas export is connected to the rotary kiln, and the furnace gas generated in the mineral hot furnace enters the rotary kiln as pre-heating fuel through the furnace gas export.The Smelting Plant system can shorten the heat, and reduce and smelt power consumption, production cost, and energy conservation and environmental protection and guarantee safe production.The invention also discloses a kind of Smelting Plant techniques.
Description
Technical field
The present invention relates to metallurgical technology field more particularly to a kind of Smelting Plant systems and Smelting Plant technique.
Background technology
Manganese ore is made of a variety of high oxides containing manganese, water of constitution, or is existed in the form of carbonate.In mineral hot furnace
In smelting process, compound is decomposed or absorption aqueous vapor generates bulk gas, this not only consumes amount of heat, but also mineral hot furnace
Safety cannot also ensure.
Using manganese ore the pre-heat treatment and hot-mounting process, melting electric consumption can be not only substantially reduced, improves the production energy of electric furnace
Power also plays an important role to safety in production.As domestic Ferroalloy Markets are increasingly competitive, on raw material and electricity price etc.
Rise, the living space of ferroalloy manufacturing enterprise becomes more and more narrower, reduce energy consumption with it is cost-effective for ferroalloy enterprise
It has been a very urgent thing.When conventional electric refining furnaces and shaking ladle machine production low-carbon ferromanganese, entered using cold charge
Stove, duration of heat length, energy consumption are higher, and the volatilization of manganese element is also relatively high in furnace charge.
Invention content
Having in view of that, the present invention provides one kind and can shorten the heat, and reduces and smelts power consumption, production cost, and
And energy conservation and environmental protection and the Smelting Plant system and Smelting Plant technique that guarantee safe production, to solve to exist in the prior art
The problem of.
According to the first aspect of the invention, a kind of Smelting Plant system is provided, including：
Rotary kiln carries out pre- thermosetting preheating material for receiving manganese lump ore, and to manganese lump ore；
Sintering machine, for receiving manganese mineral powder, and manganese mineral powder is sintered to form sintering feed；
Drying kiln, for receiving coke, and STRENGTH ON COKE carries out drying and forms drying material；
Mineral hot furnace, for receiving the mixture formed after the pre- hot material, sintering feed and drying material mixing, and to described mixed
It closes material and carries out melting；
Wherein, the mineral hot furnace is equipped with furnace gas export, and the furnace gas export is connected to the rotary kiln, the mineral hot furnace
The furnace gas of interior generation enters the rotary kiln as pre-heating fuel through the furnace gas export.
Preferably, the rotary kiln stage casing is equipped with stoke hole, and the stoke hole into the rotary kiln for being added coal dust.
Preferably, further include injection system, for advertising coal dust in the rotary kiln.
Preferably, further include hot charging batch can, the hot charging batch can is keeping the temperature mixture for receiving the mixture
It is delivered to mineral hot furnace under state.
Preferably, further include buffering heat preservation feed bin, the top for buffering heat-insulating barn and being set to the hot charging batch can is used for
It receives the mixture and lower leakage is to the hot charging batch can.
According to the second aspect of the invention, a kind of Smelting Plant technique is provided, including：
Step 1:Manganese lump ore is sent into rotary kiln and carries out pre- thermosetting preheating material, manganese mineral powder feeding sintering machine is burnt
Knot forms sintering feed, and coke feeding dryer, which is carried out drying, forms drying material；
Step 2：The pre- hot material, sintering feed and drying material are mixed, mixture is formed；
Step 3：The mixture is sent into mineral hot furnace and carries out melting, the furnace gas generated after melting is passed through the rotary kiln
It is middle to be used as fuel, ferrous manganese ore is preheated.
Preferably, it in the step 1, when the furnace gas amount is unstable, is advertised into the rotary kiln into coal dust conduct
Fuel preheats the ferrous manganese ore.
Preferably, it in the step 2, carries out the pre- hot material, sintering feed and drying material to be mixed to form mixture
When, the pre- hot material, sintering feed and drying material are subjected to alternatively layered laying.
Preferably, it in the step 2, carries out the pre- hot material, sintering feed and drying material to be mixed to form mixture
When, oscillating feeder is respectively adopted and carries out dispensing.
Preferably, a in the step 1, coal dust and manganese mineral powder are sent into sintering machine simultaneously and are sintered.
The present invention at least realizes following advantageous effect：
(1), by being preheated to manganese ore, manganese ore charging temperature is improved, the thermal energy for heating is reduced, reduces and smelts electricity
It can consumption.
(2), the duration of heat of mineral hot furnace can be shortened, while the volatilization loss of manganese element is also reduced therewith in furnace charge, reduced
Production cost.
(3), by the preheating by the furnace gas recycling of mineral hot furnace for manganese ore, the waste heat of furnace gas on the one hand can be made full use of,
The energy expenditure of manganese ore preheating is reduced, the integrated treatment of furnace gas is on the other hand realized, reaches energy-saving and environment-friendly effect.
(4), using preheating material, reduce the moisture of people's stove, thus reduce furnace gas quantity caused by smelting process,
Be conducive to stable furnace condition, ensure safety in production, reduces heat and stop number and time.
(5), for manganese ore after preheating, value Mn compound amounts reduce the consumption that can reduce reducing agent, make flue gas
In CO2 reduce, improve electric furnace calorific value of gas and the thermal efficiency, decrease the burden and power consumption of gas purification facility.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In all the appended drawings, similar element
Or part is generally identified by similar reference numeral.In attached drawing, each element or part might not be drawn according to actual ratio.
Fig. 1 shows the structural schematic diagram of Smelting Plant system according to the ... of the embodiment of the present invention.
Fig. 2 shows the structural schematic diagrams of Smelting Plant technique according to the ... of the embodiment of the present invention.
In figure：Rotary kiln 1, cooling water pipe 11, wind turbine 12, furnace gas entrance 13, sintering machine 2, drying kiln 3, mineral hot furnace 4, material
Storehouse 41, furnace gas export 42, the first hopper 51, the second hopper 52, third hopper 53, the first batch hopper 61, the second dispensing
Bucket 62, third batch hopper 63, the 4th batch hopper 64, vibration proportioning machine 71, buffering heat preservation feed bin 72, moving trolley 73, molten charge
Tank 74, overhead traveling crane 75.
Specific implementation mode
The embodiment of technical solution of the present invention is described in detail below in conjunction with attached drawing.Following embodiment is only used for
Clearly illustrate technical scheme of the present invention, therefore be only used as example, and the protection model of the present invention cannot be limited with this
It encloses.
Fig. 1 shows the structural schematic diagram of Smelting Plant system according to the ... of the embodiment of the present invention.As shown in Figure 1, the manganese ore
Smelting system, including rotary kiln 1, sintering machine 2, drying kiln 3 and mineral hot furnace 4.Rotary kiln 1, for receiving manganese lump ore, and to manganese block
Mine carries out pre- thermosetting preheating material.Sintering machine 2, for receiving manganese mineral powder, and manganese mineral powder is sintered to form sintering feed.Drying kiln
3, for receiving coke, and STRENGTH ON COKE carries out drying and forms drying material.Mineral hot furnace 4, for receive the pre- hot material, sintering feed and
The mixture formed after drying material mixing, and melting is carried out to the mixture.
Wherein, the mineral hot furnace 4 is equipped with furnace gas export 42, and the furnace gas export 42 is connected to the rotary kiln 1, described
The furnace gas generated in mineral hot furnace 4 enters the rotary kiln 1 through the furnace gas export 42 and is used as pre-heating fuel.
In the embodiment, the feeding end of rotary kiln 1 is equipped with feeding mouth, and the top of feeding mouth is equipped with the first batch bin 41, manganese
It is equipped with the first hopper 51 by lump ore heap, belt conveyor is equipped between the first hopper 51 and the first batch bin 41.First by
Hopper 51 is for receiving material and unclassified stores from manganese lump ore heap, and, to belt conveyor, belt is defeated by leakage under material
It send machine for material to be delivered to feeding mouth, and enters in rotary kiln 1 through feeding mouth.The material that first hopper 51 receives is unlimited
Further include flux in manganese lump ore.Certainly, the material that the first hopper 51 receives may also include the material component of other needs.Into
One step, between the first hopper 51 and belt conveyor is additionally provided with oscillating feeder, through oscillating feeder to belt conveyor
Convey material.
Rotary kiln 1 is equipped with cooling water pipe 11, is cooled down to rotary kiln 1 for being passed through cooling water.The stage casing of rotary kiln 1
Equipped with equipped with stoke hole, the stoke hole into the rotary kiln 1 for being added coal dust.Further, coal dust system can be also set
Standby and injection system is used to prepare coal dust and advertises coal dust in rotary kiln 1.The injection system includes going out set on rotary kiln 1
Expect that the wind turbine 12 at end, the wind turbine 12 can be used for coal dust or gas drum from mineral hot furnace 4 being blown into rotary kiln 1.Rotary kiln 1
Discharging end side be equipped with furnace gas entrance 13, for being connected to the furnace gas export 42 of mineral hot furnace 4.
The feed end of sintering machine 2 is equipped with the second batch bin 41 and third batch bin 41, and the second material feeding is equipped with by manganese ore powder heap
Mouthful, belt conveyor is equipped between the second hopper 52 and the second batch bin 41.Between second hopper 52 and belt conveyor
Equipped with oscillating feeder, the material in the second hopper 52 under oscillating feeder through leaking to belt conveyor.Second hopper
52 for receiving the material from manganese ore powder heap and being leaked to belt conveyor under material, and material is delivered to by belt conveyor
Second batch bin 41, and through in 41 times leakage to sintering machines 2 of the second batch bin.Third batch bin 41 is used to receive the coal dust prepared simultaneously
In lower leakage to sintering machine 2.
The feeding end of drying kiln 3 is equipped with feeding mouth, and the top of feeding mouth is equipped with the 4th batch bin 41.The is equipped with by coke heap
Three hoppers 53 are equipped with belt conveyor between third hopper 53 and the 4th batch bin 41.4th collection hopper comes for receiving
From the material of coke heap, and by leakage under coke, to belt conveyor, material is delivered to drying kiln 3 by belt conveyor.
The Smelting Plant system further includes hot charging batch can 74 and buffering insulation material storehouse 72, and the hot charging batch can 74 is for receiving
The mixture, and mixture is delivered to mineral hot furnace 4 under keeping warm mode.The buffering heat-insulating barn is set to the molten charge
The top of tank 74, for receiving the mixture and lower leakage to the hot charging batch can 74.Buffering heat preservation feed bin 72 is set to rotary kiln 1
The lower section of discharge end, and vibration proportioning machine 71 is equipped between 1 discharge end of rotary kiln and buffering insulation material storehouse 72.Sintering machine 2
Belt conveyor is equipped between discharge end and the vibration proportioning machine 71, the sintering feed in sintering machine 2 is delivered to through belt conveyor
Vibrate proportioning machine 71.It is equipped with belt conveyor between the discharge end and vibration proportioning machine 71 of drying kiln 3, is used for drying kiln 3
Drying material is delivered to vibration proportioning machine 71.Vibrate proportioning machine 71 receive pre- hot material from rotary kiln 1, sintering oven sintering feed with
And the drying material of drying kiln 3.
Further, which further includes moving trolley 73 and overhead traveling crane 75, moving trolley 73, overhead traveling crane 75 and
Above-mentioned hot charging batch can 74 forms mixture transport system.Hot charging batch can 74 is set in moving trolley 73, and moving trolley 73 is moved to
When the lower section of overhead traveling crane 75, overhead traveling crane 75 is by realizing precise positioning between Gray bus and hot charging batch can 74, and by hot charging batch can
74 liftings, hot charging batch can 74 is delivered to 41 top of feed bin in mineral hot furnace 4 by overhead traveling crane 75, and mixed material is unloaded to feed bin 41
It is interior.
Further, moving trolley 73 is equipped with meausring apparatus, to control into the various objects in hot charging batch can 74
The proportion of material, and control the gross mass of combined amount.
The furnace gas export 42 of mineral hot furnace 4 is connected to the discharge end of rotary kiln 1.
In the embodiment, the oscillating feeder below each hopper is not shown in Fig. 1.
The invention further relates to a kind of Smelting Plant techniques realized using above-mentioned Smelting Plant system.Fig. 2 shows bases
The structural schematic diagram of the Smelting Plant technique of the embodiment of the present invention.As shown in Fig. 2, the Smelting Plant technique includes the following steps,
Specifically can be referring to step S01)-S03).
S01 manganese lump ore feeding rotary kiln 1), is subjected to pre- thermosetting preheating material, manganese mineral powder feeding sintering machine 2 is burnt
Knot forms sintering feed, and coke feeding dryer, which is carried out drying, forms drying material.
Specifically, ferrous manganese ore, flux are delivered to the first hopper 51, the object in the first hopper 51 by forklift respectively
Material is delivered to the first batch bin 41 through its corresponding oscillating feeder, and material is delivered to rotary kiln 1 through the first batch bin 41
In, the mixture of ferrous manganese ore and flux is preheated in rotary kiln 1, forms pre- hot material.Ferrous manganese ore is carried out in rotary kiln 1
It in warm, is burnt as fuel using the furnace gas from mineral hot furnace 4, rotary kiln 1 is made using the coal gas that electric furnace recycles
The energy containing CO is 55%-65% in coal gas.Wind turbine 12 starts, and the furnace gas that mineral hot furnace 4 is collected is advertised in rotary kiln 1.Work as stove
When gas ingredient is unstable, starts injection system, fine coal is advertised in rotary kiln 1 and is burnt, to as supplement guarantee fuel, protect
Card 1 warm of rotary kiln is normally carried out.There is stoke hole in period, 1 stage casing of rotary kiln, are constantly prevented from being sintered with firing machine.
The MnO2 in manganese ore is mostly transformed into Mn2O3 at this temperature.By being preheated to manganese ore, when can shorten the smelting of mineral hot furnace 4
Between, while the volatilization loss of manganese element is also reduced therewith in furnace charge, the effectively save energy, reduces production cost.
Meanwhile manganese mineral powder is delivered to the second hopper 52 by forklift, the material in the second hopper 52 is corresponding through its
Oscillating feeder is delivered to the second batch bin 41, and the coal dust prepared is delivered to third batch bin 41.Manganese mineral powder and coal dust enter
It is sintered in sintering machine 2, forms sintering feed.
Meanwhile coke is delivered to third hopper 53 by forklift, the material in third hopper 53 is through its corresponding object
Material conveyer is delivered to the 4th batch bin 41, and the material in the 4th batch bin 41 is delivered to drying kiln 3.Coke is in drying kiln 3
It is dried to certain mass dryness fraction, coke is dried to water content less than 3% in the implementation.
S02), the pre- hot material, sintering feed and drying material are mixed, form mixture.
Specifically, pre- hot material, sintering feed and drying material obtained in step 1 are respectively fed to shake according to preset ratio
In dynamic proportioning machine 71, then it is delivered in buffering heat preservation feed bin 72 by vibration proportioning machine 71 and forms mixture, and buffered insulation material
Storehouse 72 is unloaded into two tank of hot charging, to realize the hot delivery and hot charging of material.
In the embodiment, in order to preferably realize uniform dispensing, the subsequent reactions quality of mixture is improved, by the preheating
When material, sintering feed and drying material carry out being mixed to form mixture, the pre- hot material, sintering feed and drying material are replaced
Layering is laid.Specifically, the charge ratio of pre- hot material, sintering feed and drying material is controlled by the meausring apparatus in moving trolley 73
Example, and alternatively layered is laid in hot charging batch can 74.
S03 the mixture), is sent into mineral hot furnace 4 and carries out melting, the furnace gas generated after melting is passed through the rotary kiln 1
It is middle to be used as fuel, ferrous manganese ore is preheated.
Specifically, it is moved to the lower section of overhead traveling crane 75 by 73 hot charging batch can 74 of moving trolley, and day is realized through Gray bus
The accurate positionin of vehicle 75 and hot charging batch can 74.Then, hot charging batch can is sling from moving trolley 73 and is delivered to mine by overhead traveling crane 75
Then the top of hot stove 4 unloads mixture to feed bin 41, mixture enters through feed bin 41 in mineral hot furnace 4, and mineral hot furnace 4 is to mixed
It closes material and carries out melting, the furnace gas that fusion process generates is delivered to the furnace gas entrance 13 of rotary kiln 1 through furnace gas export 42.The place
It is the coal gas that mineral hot furnace 4 is collected to refer to furnace gas, and it is 55%-65% that CO is contained in coal gas.
The present invention at least realizes following advantageous effect：
(1), by being preheated to manganese ore, manganese ore charging temperature is improved, the thermal energy for heating is reduced, reduces and smelts electricity
It can consumption.
(2), the duration of heat of mineral hot furnace 4 can be shortened, while the volatilization loss of manganese element is also reduced therewith in furnace charge, reduced
Production cost.
(3), by the preheating by the furnace gas recycling of mineral hot furnace 4 for manganese ore, the waste heat of furnace gas on the one hand can be made full use of,
The energy expenditure of manganese ore preheating is reduced, the integrated treatment of furnace gas is on the other hand realized, reaches energy-saving and environment-friendly effect.
(4), using preheating material, reduce the moisture of people's stove, thus reduce furnace gas quantity caused by smelting process,
Be conducive to stable furnace condition, ensure safety in production, reduces heat and stop number and time.
(5), for manganese ore after preheating, value Mn compound amounts reduce the consumption that can reduce reducing agent, make flue gas
In CO2 reduce, improve electric furnace calorific value of gas and the thermal efficiency, decrease the burden and power consumption of gas purification facility.
It should be noted that unless otherwise indicated, technical term or scientific terminology used in this application should be this hair
The ordinary meaning that bright one of ordinary skill in the art are understood.
In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply relatively important
Property or implicitly indicate the quantity of indicated technical characteristic.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In this application unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be that machinery connects
It connects, can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary in two elements
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme should all cover in the claim of the present invention and the range of specification.Especially, as long as there is no knots
Structure conflict, items technical characteristic mentioned in the various embodiments can be combined in any way.The present invention does not limit to
In specific embodiment disclosed herein, but include all technical solutions fallen within the scope of the appended claims.
Claims (10)
1. a kind of Smelting Plant system, which is characterized in that including：
Rotary kiln carries out pre- thermosetting preheating material for receiving manganese lump ore, and to manganese lump ore；
Sintering machine, for receiving manganese mineral powder, and manganese mineral powder is sintered to form sintering feed；
Drying kiln, for receiving coke, and STRENGTH ON COKE carries out drying and forms drying material；
Mineral hot furnace, for receiving the mixture formed after the pre- hot material, sintering feed and drying material mixing, and to the mixture
Carry out melting；
Wherein, the mineral hot furnace is equipped with furnace gas export, and the furnace gas export is connected to the rotary kiln, production in the mineral hot furnace
Raw furnace gas enters the rotary kiln as pre-heating fuel through the furnace gas export.
2. Smelting Plant system according to claim 1, which is characterized in that the rotary kiln stage casing is equipped with stoke hole, institute
Stoke hole is stated for coal dust to be added into the rotary kiln.
3. Smelting Plant system according to claim 2, which is characterized in that further include injection system, for rousing coal dust
It is blown into the rotary kiln.
4. Smelting Plant system according to claim 1, which is characterized in that further include hot charging batch can, the hot charging batch can
For receiving the mixture, and by mixture mineral hot furnace is delivered under keeping warm mode.
5. Smelting Plant system according to claim 4, which is characterized in that further include buffering heat preservation feed bin, the buffering
Heat-insulating barn is set to the top of the hot charging batch can, for receiving the mixture and lower leakage to the hot charging batch can.
6. a kind of Smelting Plant technique, which is characterized in that including：
Step 1:Manganese lump ore is sent into rotary kiln and carries out pre- thermosetting preheating material, manganese mineral powder feeding sintering machine is sintered shape
At sintering feed, coke feeding dryer is subjected to drying and forms drying material；
Step 2：The pre- hot material, sintering feed and drying material are mixed, mixture is formed；
Step 3：The mixture is sent into mineral hot furnace and carries out melting, the furnace gas generated after melting, which is passed through in the rotary kiln, to be made
For fuel, ferrous manganese ore is preheated.
7. Smelting Plant technique according to claim 6, which is characterized in that in the step 1, when furnace gas amount shakiness
Periodically, it is advertised into the rotary kiln into coal dust as fuel, the ferrous manganese ore is preheated.
8. Smelting Plant technique according to claim 6, which is characterized in that in the step 2, by the pre- hot material, burning
When ramming material and drying material carry out being mixed to form mixture, the pre- hot material, sintering feed and drying material are subjected to alternatively layered
It lays.
9. Smelting Plant technique according to claim 6, which is characterized in that in the step 2, by the pre- hot material, burning
When ramming material and drying material carry out being mixed to form mixture, oscillating feeder is respectively adopted and carries out dispensing.
10. Smelting Plant technique according to claim 6, which is characterized in that it is a in the step 1, by coal dust and manganese ore
Powder is sent into sintering machine simultaneously and is sintered.
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| CN109387086A (en) * | 2018-11-09 | 2019-02-26 | 中冶东方工程技术有限公司 | A kind of overhead rotary kiln type mineral hot furnace hot charging feeding system and technique |
| CN110257629A (en) * | 2019-06-21 | 2019-09-20 | 宁夏森源重工设备有限公司 | Full hot charging production line and production technology for the production of manganese iron |
| CN113981210A (en) * | 2021-10-29 | 2022-01-28 | 吉铁铁合金有限责任公司 | Production process for producing manganese series ferroalloy by roasting manganese ore |
| CN115161498A (en) * | 2022-08-19 | 2022-10-11 | 宁夏森源重工设备有限公司 | Process for producing manganese metal by large-scale submerged arc furnace |
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