CN102943172A - Sintering method for silicon manganese alloy dust - Google Patents
Sintering method for silicon manganese alloy dust Download PDFInfo
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- CN102943172A CN102943172A CN2012105026704A CN201210502670A CN102943172A CN 102943172 A CN102943172 A CN 102943172A CN 2012105026704 A CN2012105026704 A CN 2012105026704A CN 201210502670 A CN201210502670 A CN 201210502670A CN 102943172 A CN102943172 A CN 102943172A
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- dust
- sintering
- manganese
- silicomanganese
- sintering method
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Abstract
The invention provides a sintering method for silicon manganese alloy dust. According to the method, high temperature resistant coke powder used as a sintering adhesive of manganese mineral powder and dust and a plant fiber serving as combustion improver are sintered at the temperature of 800-1,200 DEG C to obtain massive porous sintered products. The finished product has high mechanical strength, the situations of dusting in the sintering process and massive dust generation in the melting process can be avoided. The sintering method is a good method for treating dust and fine mineral powder in manganese plants, and is low in production cost and high in treatment quality.
Description
Technical field
The present invention relates to a kind of silicomanganese dust sintering method, belong to field of metallurgy, specifically relate to the sintering recoverying and utilizing method of tiny breeze and dust in manganese and the manganese alloy smelting process.
Background technology
Manganese and the manganese alloy granularity to various raw materials in smelting process has certain requirement, if the granularity of various raw materials is too little, can affects ventilation property in the smelting process, and then have influence on heat transfer process, causes the chemical reaction of smelting process incomplete.The undersized of raw material can cause a large amount of dust under the blast air in smelting furnace, not only can cause environmental pollution, also can lose starting material.Can produce a large amount of flue gases in manganese and the manganese alloy smelting process, behind bag-type dust, obtain a large amount of granularities less than the dust of 1mm, dust contains manganese, if abandon these a large amount of dust, not only pollutes the environment, also can waste manganese resource in short supply, therefore must recycle them.The tiny manganese ore of granularity and dust are reclaimed, and the raw material of smelting as manganese and manganese alloy not only can protection of the environment, can also develop to greatest extent limited manganese resource.Present most of manganese alloy enterprise reclaims the manganese ore of tiny granularity and the method for dust is breeze and dust to be made a certain size globe with tackiness agent, then sinter globe into, employed tackiness agent is wilkinite, lime etc., these tackiness agents are easily efflorescence in high temperature sintering, make globe intensity low, when globe enters easier efflorescence behind the high temperature sintering in the mineral hot furnace, under blast air, produce more dust, affect metallurgical effect.
Summary of the invention
The present invention adopts resistant to elevated temperatures coke powder as tackiness agent, can efflorescence under high temperature sintering, guaranteed the physical strength of sintered product, and add vegetable fibre as ignition dope, one can accelerate sintering process, and the 2nd, can make agglomerate is vesicular, convenient follow-up fritter operation processed.Can make the recycling cost of tiny breeze and dust low by the present invention, gained agglomerate intensity is large, is difficult for efflorescence in mineral hot furnace.
The present invention is achieved in that
Silicomanganese dust sintering method may further comprise the steps:
A. the ratio according to following material mixes
Dust 15%～20%
Coke powder 5～10%
Vegetable fibre 1～8%,
All the other are for the manganese ore powder or return the ore deposit or their composition
B. A step gained mixture is packed in the sinter box, 800～1200 ℃ of lower sintering 30～90 minutes, obtain agglomerate.
C. the agglomerate fragmentation that step b is obtained, screening is granularity the block of 10mm～80mm, as the raw material of manganese alloy smelting, granularity is returned the ore deposit less than the product conduct of 10mm, returns to again sintering clamp dog of step a and b.
Described dust be in the manganese alloy smelting process from sack cleaner isolated dust.
Described coke powder is the metallurgical coke powdered carbon, and granularity is 0.5～2mm.
Described vegetable fibre is a kind of in wooden health, stalk and the Pericarppium arachidis hypogaeae or their composition, and size is 1～10mm.
Described manganese ore powder, the breeze of the granularity 0.11～10 that produces for the manganese ore shattering process.
Advantage of the present invention is:
1. adopt resistant to elevated temperatures coke powder as tackiness agent, high temperature sintering can efflorescence, and sintering gains physical strength is large, can efflorescence not produce dust in mineral hot furnace, and smelting process is more stable.
2. adopt vegetable fibre as ignition dope, because vegetable fibre is loose, increase the ventilation property of sintering process, be conducive to the conduction of heat, highly beneficial to sintering, can reduce sintering time, improve sintering finished performance, make the gained agglomerate be vesicular, make things convenient for the fragmentation of bulk agglomerate, reduce the energy consumption of fritter processed.
Embodiment
Embodiment 1
The 180Kg dust, coke powder 60Kg, wooden health 20Kg, manganese ore powder 740Kg mixes, in the sinter box of packing into, and each sinter box shape 100Kg, then send into the chamber type sintering machine, 900 ℃ of lower sintering 30 minutes, obtain the bulk agglomerate, broken, screening, granularity is the fritter of 10mm～80mm, as the raw material of silicomanganese, less than the particle of 10mm for returning the ore deposit, sintering clamp dog again.
Embodiment 2
The 200Kg dust, coke powder 70Kg, wooden health 30Kg, manganese ore powder 700Kg mixes, in the sinter box of packing into, and each sinter box shape 100Kg, then send into the chamber type sintering machine, 900 ℃ of lower sintering 30 minutes, obtain the bulk agglomerate, broken, screening, granularity is the fritter of 10mm～80mm, as the raw material of silicomanganese, less than the particle of 10mm for returning the ore deposit, sintering clamp dog again.
Embodiment 3
The 200Kg dust, coke powder 80Kg, peanut hull meal 20Kg, manganese ore powder 700Kg mixes, in the sinter box of packing into, and each sinter box shape 100Kg, then send into the chamber type sintering machine, 900 ℃ of lower sintering 30～90 minutes, obtain the bulk agglomerate, broken, screening, granularity is the fritter of 10mm～80mm, as the raw material of silicomanganese, less than the particle of 10mm for returning the ore deposit, sintering clamp dog again.
Embodiment 4
The 200Kg dust, coke powder 60Kg, rice straw powder 60Kg, manganese ore powder 680Kg mixes, in the sinter box of packing into, and each sinter box shape 100Kg, then send into the chamber type sintering machine, 900 ℃ of lower sintering 30～90 minutes, obtain the bulk agglomerate, broken, screening, granularity is the fritter of 10mm～80mm, as the raw material of silicomanganese, less than the particle of 10mm for returning the ore deposit, sintering clamp dog again.
Embodiment 5
The 160Kg dust, coke powder 50Kg, wooden health 20Kg, peanut hull meal 60Kg, manganese ore powder 710Kg mixes, in the sinter box of packing into, then each sinter box shape 100Kg sent into the chamber type sintering machine, 900 ℃ of lower sintering 30 minutes, obtain the bulk agglomerate, fragmentation, screening, granularity is the fritter of 10mm～80mm, as the raw material of silicomanganese, less than the particle of 10mm for returning the ore deposit, sintering clamp dog again.
Claims (5)
1. silicomanganese dust sintering method is characterized in that: comprise following steps:
A. following material is proportionally mixed
Dust 15%～20%;
Coke powder 5～10%;
Vegetable fibre 1～8%;
All the other are for the manganese ore powder or return the ore deposit or their composition;
B. the mixture that step a is obtained is packed in the sinter box, 800～1200 ℃ of lower sintering 30～90 minutes, obtains agglomerate;
C. the agglomerate fragmentation that step b is obtained, screening is granularity the block of 10mm～80mm, as the raw material of manganese alloy smelting, granularity is returned the ore deposit less than the product conduct of 10mm, returns step a and b, again the sintering clamp dog.
2. silicomanganese dust sintering method as claimed in claim 1 is characterized in that: described dust be in the manganese alloy smelting process from sack cleaner isolated dust.
3. silicomanganese dust sintering method as claimed in claim 1, it is characterized in that: described coke powder is the metallurgical coke powdered carbon, granularity is 0.5～2mm.
4. silicomanganese dust sintering method as claimed in claim 1 is characterized in that: described vegetable fibre is a kind of in wooden chaff, stalk and the Pericarppium arachidis hypogaeae or their composition, and size is 1～10mm.
5. silicomanganese dust sintering method as claimed in claim 1 is characterized in that: described manganese ore powder, the breeze of the granularity 0.1～10mm that produces for the manganese ore shattering process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012105026704A CN102943172A (en) | 2012-11-30 | 2012-11-30 | Sintering method for silicon manganese alloy dust |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105026704A CN102943172A (en) | 2012-11-30 | 2012-11-30 | Sintering method for silicon manganese alloy dust |
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| CN102943172A true CN102943172A (en) | 2013-02-27 |
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| CN2012105026704A Pending CN102943172A (en) | 2012-11-30 | 2012-11-30 | Sintering method for silicon manganese alloy dust |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108359819A (en) * | 2018-03-07 | 2018-08-03 | 中冶东方工程技术有限公司 | Smelting Plant system and Smelting Plant technique |
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| CN101407858A (en) * | 2008-11-20 | 2009-04-15 | 云南文山斗南锰业股份有限公司 | Preparation of carbonaceous composite pellet containing manganese |
| CN101501226A (en) * | 2006-03-24 | 2009-08-05 | 默沙比块金有限责任公司 | Method for producing agglomerated material |
| CN102230077A (en) * | 2011-05-31 | 2011-11-02 | 华中科技大学 | Mixture for producing sintering ores |
| CN102242257A (en) * | 2011-06-30 | 2011-11-16 | 中南大学 | Flue gas circulation and biomass energy combined iron ore sintering method |
| CN102268541A (en) * | 2011-08-08 | 2011-12-07 | 无锡雪浪环境科技股份有限公司 | Cold-pressed pellets for smelting ferromanganese and preparation method for cold-pressed pellets |
| CN102296177A (en) * | 2011-08-29 | 2011-12-28 | 中南大学 | Method for reinforcing sintering of iron ores difficult to pelletize by biomass fuel |
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2012
- 2012-11-30 CN CN2012105026704A patent/CN102943172A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101501226A (en) * | 2006-03-24 | 2009-08-05 | 默沙比块金有限责任公司 | Method for producing agglomerated material |
| CN101407858A (en) * | 2008-11-20 | 2009-04-15 | 云南文山斗南锰业股份有限公司 | Preparation of carbonaceous composite pellet containing manganese |
| CN102230077A (en) * | 2011-05-31 | 2011-11-02 | 华中科技大学 | Mixture for producing sintering ores |
| CN102242257A (en) * | 2011-06-30 | 2011-11-16 | 中南大学 | Flue gas circulation and biomass energy combined iron ore sintering method |
| CN102268541A (en) * | 2011-08-08 | 2011-12-07 | 无锡雪浪环境科技股份有限公司 | Cold-pressed pellets for smelting ferromanganese and preparation method for cold-pressed pellets |
| CN102296177A (en) * | 2011-08-29 | 2011-12-28 | 中南大学 | Method for reinforcing sintering of iron ores difficult to pelletize by biomass fuel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108359819A (en) * | 2018-03-07 | 2018-08-03 | 中冶东方工程技术有限公司 | Smelting Plant system and Smelting Plant technique |
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Application publication date: 20130227 |