CN102251115A - Method for producing high-carbon manganese-iron alloy from high-alkalinity manganese ore - Google Patents
Method for producing high-carbon manganese-iron alloy from high-alkalinity manganese ore Download PDFInfo
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- CN102251115A CN102251115A CN 201110197367 CN201110197367A CN102251115A CN 102251115 A CN102251115 A CN 102251115A CN 201110197367 CN201110197367 CN 201110197367 CN 201110197367 A CN201110197367 A CN 201110197367A CN 102251115 A CN102251115 A CN 102251115A
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Abstract
The invention relates to a method for producing high-carbon manganese-iron alloy from high-alkalinity manganese ore, which is characterized by comprising the following steps: thoroughly mixing 10-20 wt% of reducer, 70-80 wt% of manganese ore and 1-10 wt% of iron ore, smelting in a heating furnace to obtain a melt, and cooling the melt to obtain the high-carbon manganese-iron alloy, wherein the content of silicon in the alloy is lower than 1.5%, and the alkalinity of slag is controlled at 1.6-2.0. The technique provided by the invention is simple, and the product recovery rate is above 82%; and waste slag and waste gas generated in the whole production process are recycled, thereby implementing zero discharge in the production process. Meanwhile, the high-alkalinity raw material has an obvious function on prolonging the service life of the electric furnace, so the invention has obvious environmental and economic benefits.
Description
Technical field
The present invention relates to technical field of iron alloy production, particularly a kind of high basicity manganese ore is produced the method for high carbon ferromanganese alloy.
Background technology
The high carbon ferromanganese alloy is main alloying constituent and the deoxidization desulfuration agent in steel-making and the castingprocesses.Existing manganeseirom production technique is with the melting production in the hot stove in ore deposit of manganese ore of high grade, silica, coke or raw materials such as charcoal, lime.This production technique than higher, requires basicity to be controlled between 1.2 ~ 1.4 the requirement of raw material, and phosphorus content is controlled in 0.4%.The local manganese resource in state, Red River, Yunnan Province adopts existing method to smelt owing to reasons such as natural alkalinity height, phosphorus content height then are difficult to adapt to.
Summary of the invention
The object of the present invention is to provide a kind of high basicity manganese ore to produce the method for high carbon ferromanganese alloy, to adapt to the development and use of the local manganese resource that enriches in state, Red River, Yunnan Province.
Purpose of the present invention is implemented by following technical scheme:
A kind of high basicity manganese ore is produced the method for high carbon ferromanganese alloy, it is characterized in that with reductive agent, manganese ore and iron ore be raw material, according to weight percent: reductive agent is 10 ~ 20%, manganese ore is that 70 ~ 80 %, iron ore are 1 ~ 10 %, in the hot stove in ore deposit, carry out melting behind each raw material thorough mixing, the melt that obtains after the melting promptly gets the high carbon ferromanganese alloy after cooling, alloy is siliceous to be lower than 1.5%, and basicity of slag is controlled at 1.6 ~ 2.0.
Used reductive agent is one or more the mixture in charcoal, coal, bottle coal Jiao, semicoke, blue charcoal, metallurgical coke, silica Jiao or the refinery coke during described high carbon ferromanganese alloy melting.
The granularity of described various raw materials is controlled at 5 ~ 150mm.
The grade of manganese ore is 22 ~ 35 % in the described raw material.
The invention has the beneficial effects as follows: this invented technology is simple, and product recovery rate is more than 82%, and the production processing cost is low; The present invention makes full use of local rich in natural resources, and the product of producing satisfies national standard.The waste residue and the waste gas that are produced in the whole production flow process are all utilized again, have realized the production process zero release.Use high basicity raw material tangible effect to be arranged, environmental benefit and remarkable in economical benefits simultaneously to prolonging the electric furnace life-span.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
Embodiment
Embodiment one
Grade is 22 ~ 30% manganese ore, coke, iron ore, the granularity of controlling various raw materials is 5mm ~ 80mm, prepare burden through entering in the batch bin after the seasoning, these three kinds according to entering in the distribution cabins behind weight percent 75:15:10 weighing and the thorough mixing, raw mix in the distribution cabins is sent in the hot stove in ore deposit and is carried out melting, and basicity of slag is 1.6 ~ 2.0 during the control melting.Slag in the hot stove in ore deposit is derived and is laggardly gone in the water quenching pool, and through obtaining particle iron and slag after the shrend washing, particle iron reenters smelting system after returning stock yard fine fodder canopy, and slag is delivered to the raw material of building material factory as cement and slag brick.Alloy melt enters and cools off the ingot casting processing in the mould, promptly gets the high carbon ferromanganese alloy product behind cooling finishing warehouse-in, and the silicon content of alloy is less than 1.2%; The flue gas that produces in the hot stove in ore deposit is undertaken carrying out cogeneration after the heat collection by waste heat boiler, and flue dust is collected the back through bag collection and returned in the hot stove in ore deposit with the form of pelletizing by making ball, and flue gas is through emptying process behind the bag collection.The electric furnace body life-span reached more than 10 years, and the rate of recovery remains on more than 81%.
Embodiment two
Grade is 30 ~ 35% manganese ore, metallurgical coke, iron ore, the granularity of controlling various raw materials is 80mm ~ 140mm, prepare burden through entering in the batch bin after the seasoning, these three kinds according to entering in the distribution cabins behind weight percent 80:15:5 weighing and the thorough mixing, raw mix in the distribution cabins is sent in the hot stove in ore deposit and is carried out melting, and basicity of slag is 1.6 ~ 1.8 during the control melting.Slag in the hot stove in ore deposit is derived and is laggardly gone in the water quenching pool, and through obtaining particle iron and slag after the shrend washing, particle iron reenters smelting system after returning stock yard fine fodder canopy, and slag is delivered to the raw material of building material factory as cement and slag brick.Alloy melt enters and cools off ingot casting in the mould and handle, and promptly gets the high carbon ferromanganese alloy product behind cooling finishing warehouse-in, alloy siliceous less than 1.4%; The flue gas that produces in the hot stove in ore deposit is undertaken carrying out cogeneration after the heat collection by waste heat boiler, and flue dust is collected the back through bag collection and returned in the hot stove in ore deposit with the form of pelletizing by making ball, and flue gas is through emptying process behind the bag collection.The electric furnace life-span reached more than 10 years, and the rate of recovery is more than 82%.
Embodiment three
Grade is 27 ~ 33% manganese ore, refinery coke, iron ore, the granularity of controlling each raw material is 20mm ~ 100 mm, prepare burden through entering in the batch bin after the seasoning, these three kinds of raw materials enter in the distribution cabins after according to weight percent 75:17:8 weighing and thorough mixing, raw mix in the distribution cabins is sent in the hot stove in ore deposit and is carried out melting, and basicity of slag is 1.7 ~ 1.9 during the control melting.Slag in the hot stove in ore deposit is derived and is laggardly gone in the water quenching pool, and through obtaining particle iron and slag after the shrend washing, particle iron reenters smelting system after returning stock yard fine fodder canopy, and slag is delivered to the raw material of building material factory as cement and slag brick.Alloy melt enters and cools off the ingot casting processing in the mould, behind cooling finishing warehouse-in, promptly get the high carbon ferromanganese alloy product, alloy siliceous less than 1.0%, the flue gas that produces in the hot stove in ore deposit is undertaken carrying out cogeneration after the heat collection by waste heat boiler, flue dust is collected the back through bag collection and is returned in the hot stove in ore deposit with the form of pelletizing by making ball, flue gas is through emptying process behind the bag collection, and the electric furnace life-span reached more than 10 years, and the rate of recovery is more than 82%.
Embodiment four
Grade is that 22 ~ 30% manganese ore, silica Jiao and refinery coke are pressed 1:1 blended material, iron ore, the granularity of controlling these three kinds of raw materials is 5mm ~ 80mm, prepare burden through entering in the batch bin after the seasoning, three kinds of raw materials enter in the distribution cabins after according to weight percent 75:15:10 weighing and thorough mixing, raw mix in the distribution cabins is sent in the hot stove in ore deposit and is carried out melting, and basicity of slag is 1.6 ~ 2.0 during the control melting.Slag in the hot stove in ore deposit is derived and is laggardly gone in the water quenching pool, and through obtaining particle iron and slag after the shrend washing, particle iron reenters smelting system after returning stock yard fine fodder canopy, and slag is delivered to the raw material of building material factory as cement and slag brick.Alloy melt enters and cools off the ingot casting processing in the mould, promptly gets the high carbon ferromanganese alloy product behind cooling finishing warehouse-in, and the silicon content of alloy is less than 1.2%; The flue gas that produces in the hot stove in ore deposit is undertaken carrying out cogeneration after the heat collection by waste heat boiler, and flue dust is collected the back through bag collection and returned in the hot stove in ore deposit with the form of pelletizing by making ball, and flue gas is through emptying process behind the bag collection.The electric furnace body life-span reached more than 10 years, and the rate of recovery remains on more than 81%.
Claims (4)
1. one kind high basicity manganese ore is produced the method for high carbon ferromanganese alloy, it is characterized in that with reductive agent, manganese ore and iron ore be raw material, according to weight percent: reductive agent is that 10～20% manganese ores are that 70～80 %, iron ore are 1～10 %, in the hot stove in ore deposit, carry out melting behind the thorough mixing, the melt that obtains after the melting promptly gets the high carbon ferromanganese alloy after cooling, alloy is siliceous to be lower than 1.5%, and basicity of slag is controlled at 1.6～2.0.
2. method according to claim 1 is characterized in that: used reductive agent is one or more the mixture in charcoal, coal, bottle coal Jiao, semicoke, blue charcoal, metallurgical coke, silica Jiao or the refinery coke during high carbon ferromanganese alloy melting.
3. method according to claim 1 is characterized in that: the granularity of various raw materials is controlled at 5～150mm.
4. method according to claim 1 is characterized in that: the grade of manganese ore is 22～35 % in the raw material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110197367 CN102251115B (en) | 2011-07-14 | 2011-07-14 | Method for producing high-carbon manganese-iron alloy from high-alkalinity manganese ore |
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| CN 201110197367 CN102251115B (en) | 2011-07-14 | 2011-07-14 | Method for producing high-carbon manganese-iron alloy from high-alkalinity manganese ore |
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| CN102251115A true CN102251115A (en) | 2011-11-23 |
| CN102251115B CN102251115B (en) | 2013-06-26 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104561549A (en) * | 2014-12-10 | 2015-04-29 | 昆明理工大学 | Distribution method for roasting silica-containing manganese ore of microwave shaft furnace |
| CN104630476A (en) * | 2015-01-30 | 2015-05-20 | 福建绿能资源再生科技有限公司 | Method for preparing inconel by using heavy metal sludge |
| CN104988312A (en) * | 2015-01-19 | 2015-10-21 | 北京科技大学 | Method for smelting manganese-iron alloy by using microwave heating of manganese ore |
| CN110218883A (en) * | 2019-06-24 | 2019-09-10 | 内蒙古普源铁合金有限责任公司 | A kind of method of smelting of silicomanganese |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101250605A (en) * | 2008-03-21 | 2008-08-27 | 江阴市尚疯新能源技术开发有限公司 | Method for directly melting manganese iron with manganese ore by using converter |
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2011
- 2011-07-14 CN CN 201110197367 patent/CN102251115B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101250605A (en) * | 2008-03-21 | 2008-08-27 | 江阴市尚疯新能源技术开发有限公司 | Method for directly melting manganese iron with manganese ore by using converter |
Non-Patent Citations (3)
| Title |
|---|
| 《国外选矿快报》 19990430 Y.V.斯瓦达等 使用固体还原剂提高含铁低品位锰矿石的锰铁比 第1-3页 1-4 , 第8期 * |
| 《武汉科技大学学报》 20090228 薛正良等 Wcomet直接还原法渣铁分离影响因素研究 1-4 第32卷, 第1期 * |
| 《铁合金》 19821231 А.Н.Чернятин 高炉和电炉熔炼锰铁提高锰回收率的途径 第53-59页 1-4 , 第1期 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104561549A (en) * | 2014-12-10 | 2015-04-29 | 昆明理工大学 | Distribution method for roasting silica-containing manganese ore of microwave shaft furnace |
| CN104988312A (en) * | 2015-01-19 | 2015-10-21 | 北京科技大学 | Method for smelting manganese-iron alloy by using microwave heating of manganese ore |
| CN104630476A (en) * | 2015-01-30 | 2015-05-20 | 福建绿能资源再生科技有限公司 | Method for preparing inconel by using heavy metal sludge |
| CN110218883A (en) * | 2019-06-24 | 2019-09-10 | 内蒙古普源铁合金有限责任公司 | A kind of method of smelting of silicomanganese |
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| CN102251115B (en) | 2013-06-26 |
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