CN207973790U - Low-carbon ferrochromium smelts hot charging heat and converts system - Google Patents
Low-carbon ferrochromium smelts hot charging heat and converts system Download PDFInfo
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- CN207973790U CN207973790U CN201820384025.XU CN201820384025U CN207973790U CN 207973790 U CN207973790 U CN 207973790U CN 201820384025 U CN201820384025 U CN 201820384025U CN 207973790 U CN207973790 U CN 207973790U
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- 229910000604 Ferrochrome Inorganic materials 0.000 title claims abstract description 34
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 29
- 241001417490 Sillaginidae Species 0.000 title claims description 10
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 60
- 239000011707 mineral Substances 0.000 claims abstract description 60
- 238000003723 Smelting Methods 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 16
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 47
- 235000019738 Limestone Nutrition 0.000 claims description 36
- 239000006028 limestone Substances 0.000 claims description 36
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 22
- 238000007670 refining Methods 0.000 claims description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 20
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 15
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 15
- 239000003034 coal gas Substances 0.000 claims description 15
- 239000004571 lime Substances 0.000 claims description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 239000000377 silicon dioxide Substances 0.000 claims description 11
- 239000000571 coke Substances 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 10
- 235000012054 meals Nutrition 0.000 claims description 10
- 238000010079 rubber tapping Methods 0.000 claims description 10
- 239000000428 dust Substances 0.000 claims description 6
- 239000004575 stone Substances 0.000 claims description 5
- 238000002386 leaching Methods 0.000 claims description 4
- 235000019504 cigarettes Nutrition 0.000 claims 1
- 238000001816 cooling Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 32
- 238000000034 method Methods 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 9
- 238000001354 calcination Methods 0.000 description 7
- 238000001035 drying Methods 0.000 description 6
- 229910052804 chromium Inorganic materials 0.000 description 5
- 239000011651 chromium Substances 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 229910001021 Ferroalloy Inorganic materials 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 241001062472 Stokellia anisodon Species 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 241001275902 Parabramis pekinensis Species 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- DYRBFMPPJATHRF-UHFFFAOYSA-N chromium silicon Chemical compound [Si].[Cr] DYRBFMPPJATHRF-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002003 electrode paste Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 229910052882 wollastonite Inorganic materials 0.000 description 1
Classifications
-
- 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
Landscapes
- Manufacture Of Iron (AREA)
Abstract
The utility model, which discloses a kind of low-carbon ferrochromium, to be smelted hot charging heat and converts system comprising silicochromium smelting device, mineral hot furnace gas recovering device and raw material hot charging purifier；The mineral hot furnace gas exit of silicochromium smelting device is connect with the mineral hot furnace gas inlet of mineral hot furnace gas recovering device, and the gas exit of mineral hot furnace gas recovering device is connect with the gas inlet of raw material hot charging purifier.Advantage is：Tthe utility model system is simple in structure, good product quality, low energy consumption, production efficiency is high, silicochromium dosage is few, waste liqouor is efficient, environmental pollution is small, energy recovery utilization rate is high, production security is high.
Description
Technical field：
It smelts hot charging heat the utility model is related to a kind of low-carbon ferrochromium smelting system more particularly to a kind of low-carbon ferrochromium and converts and be
System.
Background technology：
Ferrochrome is the ferroalloy of chromium and iron composition, is the important alloy addition of steel-making.Ferrochrome is divided by different phosphorus content
High carbon ferro-chrome, medium carbon ferrochrome, low-carbon ferrochromium, chromic carbide iron etc..The low-carbons steel grade such as smelting stainless steel, bearing steel, it is necessary to using it is low,
Chromic carbide iron.
Well known low-carbon ferrochromium production technology is that reducing agent is added in mineral hot furnace to react, using mixing charging method or silicon
Chromium heap bottom method, i.e., silicochromium, chrome ore, lime stone are added in mineral hot furnace together, while load melting, in silicochromium
Si reduction chrome ore in three oxygen, two chromium, make entirely react reacted in same mineral hot furnace.Work is produced using existing low-carbon ferrochromium
The low-carbon ferrochromium product of skill production is high containing [C] amount, and raw materials consumption is high, and the organic efficiency of chromium is low.The drying of chrome ore and
The calcining of lime stone carries out all in mineral hot furnace, the high energy consumption of mineral hot furnace, also, the height generated during mine heat furnace smelting
Warm flue gas by effective recycling, does not cause energy waste and environmental pollution；Raw material is not fed in strict accordance with charge ratio,
The waste of raw material can be caused, each component content in product is also unable to ensure and meets production requirement.
Utility model content：
The purpose of this utility model is to provide a kind of product containing [C] measure it is low, low energy consumption, the organic efficiency of chromium is high
Low-carbon ferrochromium smelts hot charging heat and converts system.
The utility model is implemented by following technical solution：
Low-carbon ferrochromium smelt hot charging heat convert system comprising silicochromium smelting device, mineral hot furnace gas recovering device and
Raw material hot charging purifier；The mineral hot furnace gas exit of the silicochromium smelting device and the mineral hot furnace gas recovering device
Mineral hot furnace gas inlet connection, the gas exit of the mineral hot furnace gas recovering device and the raw material hot charging purifier
Gas inlet connects.
Further, the silicochromium smelting device includes high carbon ferro-chrome feed bin, silica feed bin, coke feed bin, second
With trolley, mineral hot furnace and the second ladle；The discharge port of the high carbon ferro-chrome feed bin, the silica feed bin and the coke feed bin
It is connect with the feed inlet of the mineral hot furnace with trolley by described second, the tapping hole of the mineral hot furnace and second steel
Packet is connected into iron mouth.
Further, the raw material hot charging purifier includes chrome ore feed bin, chrome ore dosing, chrome ore rotary kiln, stone
Lime stone feed bin, raw meal prepared from lime unit, Limestone rotary kiln, burner, first match trolley, refining furnace and the first ladle；Institute
The kiln hood for stating Limestone rotary kiln is equipped with burner；The discharge port of the chrome ore feed bin by the chrome ore dosing with it is described
The feed inlet of chrome ore rotary kiln connects, and the discharge port of the lime stone feed bin passes through the raw meal prepared from lime unit and the lime
The feed inlet of stone rotary kiln connects, and the discharge port of the chrome ore rotary kiln and the Limestone rotary kiln is matched by described first
Trolley is connect with the feed inlet of the refining furnace, and the tapping hole of the refining furnace is connect with first ladle into iron mouth.
Further, the mineral hot furnace gas recovering device includes being arranged by the sequentially connected water-cooled flue of pipeline, wind-force
Chimney cooler, cyclone dust collectors, bag filter, outer leaching formula air tubulation cooler, roots blower and gas chamber；The mine
The mineral hot furnace gas exit of hot stove is connect with the mineral hot furnace gas inlet of the water-cooled flue；The gas exit of the gas chamber with
The gas inlet of the burner connects.
Further, the chrome ore dosing, the raw meal prepared from lime unit, described first are with trolley and described the
Two with trolley be speed governing type belted electronic balance.
The advantages of the utility model：
The utility model use hot charging hot-metal process production technology, production the characteristics of be that reducing agent is added outside stove, i.e.,
One first revolution kiln drying chrome ore, a calcined by rotary kiln lime stone generate lime, it is ensured that hot material enters stove, chrome ore and lime
Stone, which mixes to be added in refining furnace with certain proportion, is smelt solution, the liquid silicochromium generated in mineral hot furnace is then added, through falling
Packet mixing, the reaction generation ferrochrome in ladle are conducive to oxidation reaction progress since temperature is higher in reaction process, and
Electrode is not in direct contact with alloy in smelting process, so the ferrochrome phosphorus content of production is relatively low, can refine to obtain phosphorus content ＜ 0.03%
Chromic carbide iron.Low energy consumption for the utility model, silicochromium dosage is few, chromium organic efficiency is high, environmental pollution is small, energy recovery
Utilization rate is high.
Description of the drawings：
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other drawings may also be obtained based on these drawings.
Fig. 1 is the system structure diagram of the utility model.
In figure：Silicochromium smelting device 1, high carbon ferro-chrome feed bin 1-1, silica feed bin 1-2, coke feed bin 1-3, second are matched
Trolley 1-4, mineral hot furnace 1-5, the second ladle 1-6, mineral hot furnace gas recovering device 2, water-cooled flue 2-1, wind-force tube type cold
But device 2-2, cyclone dust collectors 2-3, bag filter 2-4, outer leaching formula air tubulation cooler 2-5, roots blower 2-6, coal gas
Cabinet 2-7, raw material hot charging purifier 3, chrome ore feed bin 3-1, chrome ore dosing 3-2, chrome ore rotary kiln 3-3, lime stone feed bin
3-4, raw meal prepared from lime unit 3-5, Limestone rotary kiln 3-6, burner 3-7, first are with trolley 3-8, refining furnace 3-9, the
One ladle 3-10.
Specific implementation mode：
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, shall fall within the protection scope of the present invention.
Embodiment 1：
Low-carbon ferrochromium as shown in Figure 1 smelts hot charging heat and converts system comprising silicochromium smelting device 1, mineral hot furnace coal
Gas recovering device 2 and raw material hot charging purifier 3；The mineral hot furnace gas exit of silicochromium smelting device 1 and mineral hot furnace coal gas
The mineral hot furnace gas inlet of retracting device 2 connects, gas exit and the raw material hot charging purifier of mineral hot furnace gas recovering device 2
3 gas inlet connection.
The exhaust gas that totally-enclosed mineral hot furnace 1-5 is generated in smelting process is mainly flue gas during smelting, and CO content in smoke exists
60% or more, calorific capacity is higher, therefore referred to as mineral hot furnace coal gas.Since the tapping temperature of mineral hot furnace coal gas is higher, and wherein
Dust content is larger, in order to reasonable energy utilization, and reduces the generation of secondary pollution, passes through mineral hot furnace gas recovering device
2 pairs of mineral hot furnace coal gas are dusted, cool down, and then realize and carry out reclaiming clean to mineral hot furnace coal gas, and the coal gas after recycling enters
In gas chamber 2-7.In the present embodiment, a mineral hot furnace 1-5 gas recoveries about 4500m3/ h, and Limestone rotary kiln 3-6 calcinings
The coal gas demand of lime stone is 4500m3/ h, therefore, the mineral hot furnace coal gas of recycling disclosure satisfy that lime stone is forged in the present embodiment
Burning uses gas demand.
Silicochromium smelting device 1 includes high carbon ferro-chrome feed bin 1-1, silica feed bin 1-2, coke feed bin 1-3, the second dispensing
Trolley 1-4, mineral hot furnace 1-5 and the second ladle 1-6；The discharging of high carbon ferro-chrome feed bin 1-1, silica feed bin 1-2 and coke feed bin 1-3
Mouth is connect with trolley 1-4 with the feed inlet of mineral hot furnace 1-5 by second, the tapping hole of mineral hot furnace 1-5 and the second ladle 1-6
Into iron mouth connect.
High carbon ferro-chrome, coke and the silica used in the present embodiment into factory rules and regulations lattice be to be bought by production requirement, it is high
Carbon ferrochrome granularity be less than 20mm, coke, silica into factory's granularity be 10~40mm, without being crushed.High carbon ferro-chrome, coke, silicon
Stone enters second with trolley 1-4 from the discharge port of respective bin bottom, second with trolley 1-4 according to setting charge ratio into
Row combined ingredient, the mixture prepared are sent to mineral hot furnace 1-5, and device automatic uniform is spread out in stove；Electrode paste passes through feeding
System is transported to operating platform, is periodically added according to consumption of electrode situation；High-voltage electricity passes through short net to electricity after transformer transformation
Pole brasses；Mixture carries out deoxidation and reduction reaction in high temperature furnace, final to generate silicochromium liquid.And mineral hot furnace 1-5 normally melts
The average 3h of refining taps a blast furnace once, and tapping duration is 10min or so.Silicochromium liquid flows into the second ladle 1-6 from tapping hole.
Raw material hot charging purifier 3 includes chrome ore feed bin 3-1, chrome ore dosing 3-2, chrome ore rotary kiln 3-3, lime stone
Feed bin 3-4, raw meal prepared from lime unit 3-5, Limestone rotary kiln 3-6, burner 3-7, first match trolley 3-8, refining furnace 3-9
With the first ladle 3-10；The kiln hood of Limestone rotary kiln 3-6 is equipped with burner 3-7；Coal gas in gas chamber 2-7 is via burner
After 3-7 heating, into Limestone rotary kiln 3-6, for limestone calcination.
The discharge port of chrome ore feed bin 3-1 is connect by chrome ore dosing 3-2 with the feed inlet of chrome ore rotary kiln 3-3, stone
The discharge port of lime stone feed bin 3-4 is connect by raw meal prepared from lime unit 3-5 with the feed inlet of Limestone rotary kiln 3-6, and chrome ore returns
The discharge port of rotary kiln 3-3 and Limestone rotary kiln 3-6 are connect with trolley 3-8 with the feed inlet of refining furnace 3-9 by first,
The tapping hole of refining furnace 3-9 is connect with the first ladle 3-10's into iron mouth.The chrome ore that is used in the present embodiment, lime stone into factory
Specification is to be bought by production requirement, and chrome ore granularity is less than 50mm, and limestone granularity is less than 20mm, without being crushed.Chrome ore
Enter in respective dosing from the discharge port of respective bin bottom with lime stone, is sent after metering to respective rotary kiln, it is former
Material is fed in strict accordance with charge ratio, both saves raw material, also can guarantee that each component content meets production requirement in product.
From rotary kiln come out after calcining after lime and chrome ore after drying enter first and match trolley 3-8, through the
One is smelt solution with trolley 3-8 with feeding refining furnace 3-9 after honest material, and the first ladle 3- is flowed into from the tapping hole of refining furnace 3-9
10, and the solution has prodigious activity.This method is hot-mounting process, and the chrome ore after lime and drying after calcining enters refining furnace
Temperature is higher in reaction process after 3-9, is conducive to the progress of chemical reaction.
Solution in first ladle 3-10 is mixed with the silicochromium liquid in the second ladle 1-6 through ladle-to-ladle, in ladle
Reaction generates ferrochrome, since temperature is higher in reaction process, is conducive to oxidation reaction progress.Reaction equation is as follows：
2Cr2O3+ 3Si=4Cr+3SiO2, 2FeO+Si=2Fe+SiO2, Cao+SiO2=CaSiO3
In order to strengthen stirring, so that reaction is carried out more complete, be stirred using ladle-to-ladle method.Ladle-to-ladle is that heat converts technique behaviour
Most common agitating mode in vertical manipulates simply without additional special installation, generally by secondary ladle-to-ladle, can reach technique
It is required that.
For lime stone after Limestone rotary kiln 3-6 is calcined, the high-temperature flue gas of generation is directly entered chrome ore rotary kiln 3-3
For drying chrome ore, it is effectively utilized the waste heat of high-temperature flue gas caused by limestone calcination, saves the energy；After calcining
Lime stone and drying after chrome ore temperature it is higher, into refining furnace 3-9 after be conducive to chemical reaction and carry out, and inhaled without additional
The heat in refining furnace 3-9 is received to complete to dry and calcine, saves the energy consumption of refining furnace 3-9.
Mineral hot furnace 1-5 gas recovering devices 2 include by the sequentially connected water-cooled flue 2-1 of pipeline, wind-force tube type cold
But device 2-2, cyclone dust collectors 2-3, bag filter 2-4, outer leaching formula air tubulation cooler 2-5, roots blower 2-6 and coal gas
Cabinet 2-7；The mineral hot furnace 1-5 gas exits of mineral hot furnace 1-5 are connect with the mineral hot furnace 1-5 gas inlets of water-cooled flue 2-1；Gas chamber
The gas exit of 2-7 is connect with the gas inlet of burner 3-7.
Chrome ore dosing 3-2, raw meal prepared from lime unit 3-5, first with trolley 3-8 and second with trolley 1-4 it is equal
For speed governing type belted electronic balance.
Using a 6300KVA refining furnaces 3-9, the totally-enclosed mineral hot furnace 1-5 of a 12500KVA, one in the present embodiment
Seat 2.2 × 40m of φ chrome ore rotary kiln 3-3 and φ 2.5 × 55m Limestone rotary kilns 3-6.The totally-enclosed mineral hot furnaces of 12500KVA
1-5 is equipped with a HKSSPZ-12500kVA/35kV three-phase energy-saving transformer；6300KVA refining furnaces 3-9 is equipped with a 6300kVA
Three-phase on-load regulator transformer；φ 2.2 × 40m chrome ore rotary kiln 3-3 and φ 2.5 × 55m Limestone rotary kilns 3-6 configures two
Cover pulsed jet cloth filter 2-4 (band desulfurizer).
In the present embodiment, ferroalloy productor technique, equipment, operation mechanization, auto-control, dust removal installation and waste heat
It recycles, meets《The ferroalloy industry entry criteria》(revising for 2015) defined condition.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection domain within.
Claims (5)
1. low-carbon ferrochromium, which smelts hot charging heat, converts system, which is characterized in that it includes silicochromium smelting device, mineral hot furnace coal gas time
Receiving apparatus and raw material hot charging purifier；The mineral hot furnace gas exit of the silicochromium smelting device and the mineral hot furnace coal gas
The mineral hot furnace gas inlet of retracting device connects, the gas exit of the mineral hot furnace gas recovering device and raw material hot charging essence
Refine the gas inlet connection of device.
2. low-carbon ferrochromium according to claim 1, which smelts hot charging heat, converts system, which is characterized in that the silicochromium is smelted
Device includes high carbon ferro-chrome feed bin, silica feed bin, coke feed bin, second with trolley, mineral hot furnace and the second ladle；The high-carbon
The discharge port of ferrochrome feed bin, the silica feed bin and the coke feed bin is by described second with trolley and the mineral hot furnace
Feed inlet connection, the tapping hole of the mineral hot furnace connect with second ladle into iron mouth.
3. low-carbon ferrochromium according to claim 2, which smelts hot charging heat, converts system, which is characterized in that the raw material hot charging refining
Device includes chrome ore feed bin, chrome ore dosing, chrome ore rotary kiln, lime stone feed bin, raw meal prepared from lime unit, lime stone revolution
Kiln, burner, first match trolley, refining furnace and the first ladle；The kiln hood of the Limestone rotary kiln is equipped with the burner；
The discharge port of the chrome ore feed bin is connect by the chrome ore dosing with the feed inlet of the chrome ore rotary kiln, the lime
The discharge port in building stones storehouse is connect by the raw meal prepared from lime unit with the feed inlet of the Limestone rotary kiln, and the chrome ore returns
Rotary kiln and the discharge port of the Limestone rotary kiln are connect with trolley with the feed inlet of the refining furnace by described first,
The tapping hole of the refining furnace is connect with first ladle into iron mouth.
4. low-carbon ferrochromium according to claim 3, which smelts hot charging heat, converts system, which is characterized in that the mineral hot furnace coal gas returns
Receiving apparatus include by the sequentially connected water-cooled flue of pipeline, wind-force shell and tube cooler, cyclone dust collectors, bag filter,
Outer leaching formula air tubulation cooler, roots blower and gas chamber；The mineral hot furnace gas exit of the mineral hot furnace and the water cooling cigarette
The mineral hot furnace gas inlet in road connects；The gas exit of the gas chamber is connect with the gas inlet of the burner.
5. low-carbon ferrochromium according to claim 3 or 4, which smelts hot charging heat, converts system, which is characterized in that the chrome ore dispensing
Unit, the raw meal prepared from lime unit, described first are speed governing type electronic belt with trolley with trolley and described second
Scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820384025.XU CN207973790U (en) | 2018-03-20 | 2018-03-20 | Low-carbon ferrochromium smelts hot charging heat and converts system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820384025.XU CN207973790U (en) | 2018-03-20 | 2018-03-20 | Low-carbon ferrochromium smelts hot charging heat and converts system |
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| Publication Number | Publication Date |
|---|---|
| CN207973790U true CN207973790U (en) | 2018-10-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113293315A (en) * | 2021-04-29 | 2021-08-24 | 包头洪盛化工有限责任公司 | Method for improving quality and reducing consumption of low-micro-carbon ferrochrome smelting by supplementing silicon outside furnace |
| WO2025042299A1 (en) * | 2023-08-18 | 2025-02-27 | Re Alloys Sp. Z O.O | Complex multi-component alloy of iron, silicon and chromium |
-
2018
- 2018-03-20 CN CN201820384025.XU patent/CN207973790U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113293315A (en) * | 2021-04-29 | 2021-08-24 | 包头洪盛化工有限责任公司 | Method for improving quality and reducing consumption of low-micro-carbon ferrochrome smelting by supplementing silicon outside furnace |
| WO2025042299A1 (en) * | 2023-08-18 | 2025-02-27 | Re Alloys Sp. Z O.O | Complex multi-component alloy of iron, silicon and chromium |
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