CN206986264U - A kind of device that manganese-silicon is prepared using Mn-rich slag - Google Patents
A kind of device that manganese-silicon is prepared using Mn-rich slag Download PDFInfo
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- CN206986264U CN206986264U CN201720659819.8U CN201720659819U CN206986264U CN 206986264 U CN206986264 U CN 206986264U CN 201720659819 U CN201720659819 U CN 201720659819U CN 206986264 U CN206986264 U CN 206986264U
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- manganese
- smelting furnace
- reducing agent
- disintegrating machine
- rich slag
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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
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Abstract
The utility model discloses a kind of device that manganese-silicon is prepared using Mn-rich slag, including：Disintegrating machine, disintegrating machine have charging aperture and discharging opening, and the charging aperture of disintegrating machine is connected with reducing agent feed bin；Smelting furnace, smelting furnace have multiple charging apertures and discharging opening, and multiple charging apertures of smelting furnace are used for the addition of the reducing agent, hot Mn-rich slag and the silica flour that will be handled through crusher in crushing.By the use of device of the present utility model, manganese-silicon, which is smelted, have been saved energy consumption, has avoided the loss of manganese, and manganese recovery ratio is high.
Description
Technical field
It the utility model is related to field of metallurgy, more particularly to a kind of device that manganese-silicon is prepared using Mn-rich slag.
Background technology
The alloy that silicomangan is made up of manganese, silicon, iron and a small amount of carbon and other elements, it is that a kind of purposes is relatively wide, yield
Larger ferroalloy.Ferro-silico-manganese is the conventional double deoxidizer of steel-making, and deoxidation effect is notable, is again in production, Low Carbon Iron
With the reducing agent of electro silicothermic process production manganese metal.Ferro-silico-manganese can be taken in large, medium and small type mineral hot furnace continous way operate into
Row is smelted.
Smelting to manganese-silicon both at home and abroad has had permanent and furtherd investigate, and the improvement on process system has with raising
Raising and then purpose that is energy-saving and improving product quality beneficial to all technical.The smelting of manganese-silicon to be made
Technology is further lifted to a new height.Must further solve high energy consumption, production present in current manganese-silicon smelting
The problems such as quality is unstable.
Utility model content
In order to solve the above-mentioned problems in the prior art, manganese is prepared using Mn-rich slag the utility model proposes one kind
The device and its implementation of silicon alloy.
The method that manganese-silicon is prepared using Mn-rich slag is as follows：
Comprise the steps of：
Step 1, the carbonaceous reducing agent Jing Guo break process is laid to smelting furnace bottom；
Step 2, hot Mn-rich slag is poured into smelting furnace and is mixed to form mixed material and in high temperature with carbonaceous reducing agent
Lower reaction；
Step 3, to by step 2 processing mixed material in add silica flour go forward side by side single step reaction formed manganese-silicon.
Further, the component of following mass fraction is contained in Mn-rich slag：Manganese is 38-47%, silica 30-
36%, the mass ratio of manganese and iron therein is more than 7:1.
Further, hot Mn-rich slag pours into smelting furnace by blast furnace or electric furnace.
Further, Mn-rich slag and carbonaceous reducing agent are according to 100:The mass ratio mixing of (30-55), preferably with 100:
The mass ratio mixing of (40-50), in order to allow carbon in reducing agent MnO quick, sufficiently and in Mn-rich slag under the high temperature conditions
Reaction, reducing agent granularity are preferably less than 1mm.
Further, it is 85-89% that carbon content is fixed in carbonaceous reducing agent.
Further, the temperature of smelting furnace is 1360-1550 DEG C in step 2, it is therefore preferable to 1410-1490 DEG C.It is layered on bottom
The carbonaceous reducing agent in portion is because proportion is lighter, and carbonaceous reducing agent is under the high temperature conditions rapidly to Mn-rich slag after adding Mn-rich slag
Layer diffusion.MnO and SiO in the temperature range Mn-rich slag2Reaction generates more stable MnOSiO first2.In the temperature
Under the conditions of MnOSiO in carbonaceous reducing agent and Mn-rich slag2Reaction generation manganess carbide.In order to prevent the volatilization loss of manganese, carbonization
The silica flour that reaction terminates to add Mn-rich slag amount 28-45% carries out Alloying Treatment.
Further, silica flour is added to flash injection method in step 3, so that silica flour is rapidly and uniformly dispersed in melt
In.The silica flour of penetrating is elemental silicon, and elemental silicon rapidly cements out the carbon in manganess carbide to form stabilization under the high temperature conditions
MnSi silicomangans.Iron in Mn-rich slag during silicomangan is also reduced by carbon, and part metals iron and silicomanganese are formed
Silicomanganese alloy.
Further, the reaction time of step 2 and step 3 is respectively 20-45min and 35-60min.
Further, in order to ensure the mobility of clinker, it is sufficiently separated manganese-silicon and slag, by adding calcium oxide
Adjust basicity of slag with the additive of magnesia, it is 0.6-0.9 to control basicity of slag, wherein basicity of slag refer to (MgO+CaO)/
SiO2。
Mn contents can be obtained more than 60% by the above method, silicone content is more than 15%, and manganese silicon of the Mn-Fe ratio more than 8 closes
Gold.
The utility model discloses the device for implementing the above method, including：
Disintegrating machine, disintegrating machine have charging aperture and discharging opening, and the charging aperture of disintegrating machine is connected with reducing agent feed bin；
Smelting furnace, smelting furnace have multiple charging apertures and discharging opening, and multiple charging apertures of smelting furnace are used for will be through disintegrating machine
The addition of the reducing agent of break process, hot Mn-rich slag and silica flour.
Further, smelting furnace is square stove.
Further, smelting furnace has multiple furnace walls, and spray gun is provided with each furnace wall.Preferably, set on each furnace wall
Put 3-5 spray gun.Spray gun is preferably to flash spray gun.
Further, conveyer is provided between the discharging opening of disintegrating machine and the charging aperture of smelting furnace, conveyer is excellent
Elect conveyer belt as.
Further, disintegrating machine is used for the broken of carbonaceous reducing agent.
Further, the charging aperture of disintegrating machine is connected with the reducing agent feed bin by pipeline.
Further, silica flour is contained in silica flour feed bin.
By using above-mentioned technical proposal, following many beneficial effects are achieved：
(1) generation manganess carbide can effectively avoid the loss of manganese.
(2) Multistep feeding can arbitrarily adjust alloying component, and production technology simplifies.
(3) with penetrating burner hearth of the flicker spray gun by silica flour uniformly, scattered.
(4) it is exothermic reaction to add silica flour to do alloy treatment, can save energy consumption.
(5) smelting of the process strengthening manganese, manganese recovery ratio are high.
Brief description of the drawings
Of the present utility model above-mentioned and/or additional aspect and advantage are in the description carried out to embodiment is combined with accompanying drawing
It will be apparent from and be readily appreciated that, wherein：
Fig. 1 shows the method flow for the device that manganese-silicon is prepared using Mn-rich slag for implementing the utility model embodiment
Schematic diagram.
Fig. 2 shows the schematic diagram of the device that manganese-silicon is prepared using Mn-rich slag according to the utility model embodiment.
Embodiment
It should be appreciated that shown embodiment of the present utility model is merely illustrative in the exemplary embodiment.Although
Only a small number of embodiments are described in detail in the utility model, but those skilled in the art are readily appreciated that and taken off in not essence
In the case of teaching from the utility model theme, a variety of modifications are feasible.Correspondingly, all such modifications should all be wrapped
Include in the scope of the utility model.In the case where not departing from purport of the present utility model, following exemplary can be implemented
Design, operating condition and parameter of example etc. make others and replace, change, change and delete.
Embodiment one
As shown in Figures 1 and 2, in the present embodiment, each component of following mass percent is included in Mn-rich slag：Manganese
40%th, silica 32%.Carbon content 85.23% is fixed in carbonaceous reducing agent.In advance in step S101, by carbonaceous reducing agent
Poured into from reducing agent feed bin 1 in disintegrating machine 2 and be crushed to below 1mm.Then at step S102, the carbonaceous after crushing is also
Former agent is taped against the bottom of smelting furnace 5.Then hot Mn-rich slag is added to smelting furnace 5 from electric furnace 3.Mn-rich slag and reducing agent
According to 100:40 mass ratio adds.Above-mentioned compound is added in smelting furnace, fire box temperature is controlled at 1430 ± 10 DEG C
Between, it is incubated 25min.Then silica flour in silica flour feed bin 41 is added in smelting furnace 5 with spray gun and carries out silicomangan reaction,
Wherein silica flour addition is the 30% of Mn-rich slag, is incubated 40min.The calcium oxide in additive storage bin 42 and magnesia are added simultaneously
Add agent to be added in smelting furnace 5, basicity of slag is adjusted to 0.6 or so.Finally obtain manganese content 62.13%, silicone content
15.88%, Mn-Fe ratio is more than 8 manganese-silicon.
Embodiment two
As shown in Figures 1 and 2, in the present embodiment, each component of following mass percent is included in Mn-rich slag：Manganese
43%th, silica 34%.Fixed carbon 86.11% in carbonaceous reducing agent.In advance in step S101, by reducing agent from reduction
Poured into agent feed bin 1 in disintegrating machine 2 and be crushed to below 1mm.Then at step S102, the reducing agent fixed carbon after crushing
It is taped against the bottom of smelting furnace 5.Then hot Mn-rich slag is added to smelting furnace 5 from electric furnace 3.Mn-rich slag and reducing agent according to
Mass ratio 100:45 add.Above-mentioned compound is added in smelting furnace, fire box temperature is controlled between 1450 ± 10 DEG C, insulation
35min.Then the silica flour that the mass fraction in silica flour feed bin 41 is 35% is added in smelting furnace 5 with spray gun and carries out silicomanganese conjunction
Aurification is reacted, and is incubated 48min.The calcium oxide in additive storage bin 42 and oxidation magnesium additive are added in smelting furnace 5 simultaneously
Basicity of slag is adjusted to 0.7 or so.Manganese content 65.13%, silicone content 18.47% are finally obtained, Mn-Fe ratio is more than 8 manganese silicon
Alloy.
Embodiment three
As shown in Figures 1 and 2, in the present embodiment, each component of following mass percent is included in Mn-rich slag：Manganese
46%th, silica 36%.Carbonaceous reducing agent fixed carbon 88.26%.In advance in step S101, by reducing agent from reducing agent material
Poured into storehouse 1 in disintegrating machine 2 and be crushed to below 1mm.Then at step S102, the reducing agent fixed carbon after crushing is taped against
The bottom of smelting furnace 5.Then hot Mn-rich slag is added to smelting furnace 5 from electric furnace 3.Mn-rich slag and reducing agent are according to 100:
50 ratio adds.Above-mentioned compound is added in smelting furnace, fire box temperature is controlled between 1480 ± 10 DEG C, insulation
43min.Then the silica flour that the mass fraction in silica flour feed bin 41 is 40% is added in smelting furnace 5 with spray gun and carries out silicomanganese conjunction
Aurification is reacted, and is incubated 55min.The calcium oxide in additive storage bin 42 and oxidation magnesium additive are added in smelting furnace 5 simultaneously
Basicity of slag is adjusted to 0.8 or so.Manganese content 69.23%, silicone content 20.12% are finally obtained, Mn-Fe ratio is more than 8 manganese silicon
Alloy.
Preferred embodiment of the present utility model is the foregoing is only, is not used for limiting practical range of the present utility model；
If not departing from spirit and scope of the present utility model, the utility model is modified or equivalent substitution, all should covered
Among the protection domain of the utility model claims.
Claims (10)
1. a kind of device that manganese-silicon is prepared using Mn-rich slag, it is characterised in that described device includes：
Disintegrating machine, the disintegrating machine have charging aperture and discharging opening, and the charging aperture of the disintegrating machine is connected with reducing agent feed bin；
Smelting furnace, the smelting furnace have multiple charging apertures and discharging opening, and multiple charging apertures of the smelting furnace are used for through broken
The addition of reducing agent, hot Mn-rich slag and silica flour that crusher machine is handled.
2. device according to claim 1, it is characterised in that the smelting furnace is square stove.
3. device according to claim 1, it is characterised in that the smelting furnace has multiple furnace walls, each furnace wall
On be provided with spray gun.
4. device according to claim 3, it is characterised in that the spray gun is flicker spray gun.
5. device according to claim 3, it is characterised in that be provided with 3-5 spray gun on each furnace wall.
6. device according to claim 1, it is characterised in that the charging of the discharging opening of the disintegrating machine and the smelting furnace
Conveyer is provided between mouthful.
7. device according to claim 6, it is characterised in that the conveyer is conveyer belt.
8. device according to claim 1, it is characterised in that the disintegrating machine is used for the broken of carbonaceous reducing agent.
9. device according to claim 1, it is characterised in that the charging aperture of the disintegrating machine leads to the reducing agent feed bin
Piping connects.
10. device according to claim 1, it is characterised in that the silica flour is contained in silica flour feed bin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720659819.8U CN206986264U (en) | 2017-06-08 | 2017-06-08 | A kind of device that manganese-silicon is prepared using Mn-rich slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720659819.8U CN206986264U (en) | 2017-06-08 | 2017-06-08 | A kind of device that manganese-silicon is prepared using Mn-rich slag |
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| Publication Number | Publication Date |
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| CN206986264U true CN206986264U (en) | 2018-02-09 |
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| CN201720659819.8U Expired - Fee Related CN206986264U (en) | 2017-06-08 | 2017-06-08 | A kind of device that manganese-silicon is prepared using Mn-rich slag |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107190188A (en) * | 2017-06-08 | 2017-09-22 | 江苏省冶金设计院有限公司 | A kind of utilization Mn-rich slag prepares the method and device of manganese-silicon |
| CN114934197A (en) * | 2022-06-30 | 2022-08-23 | 安徽工业大学 | Method for extracting manganese from acid-leaching modified manganese-rich slag |
-
2017
- 2017-06-08 CN CN201720659819.8U patent/CN206986264U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107190188A (en) * | 2017-06-08 | 2017-09-22 | 江苏省冶金设计院有限公司 | A kind of utilization Mn-rich slag prepares the method and device of manganese-silicon |
| CN114934197A (en) * | 2022-06-30 | 2022-08-23 | 安徽工业大学 | Method for extracting manganese from acid-leaching modified manganese-rich slag |
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Effective date of registration: 20190102 Granted publication date: 20180209 |
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Granted publication date: 20180209 Termination date: 20190608 |