CN103031404A - Method for producing steel balls of ball mill - Google Patents
Method for producing steel balls of ball mill Download PDFInfo
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- CN103031404A CN103031404A CN2011103060212A CN201110306021A CN103031404A CN 103031404 A CN103031404 A CN 103031404A CN 2011103060212 A CN2011103060212 A CN 2011103060212A CN 201110306021 A CN201110306021 A CN 201110306021A CN 103031404 A CN103031404 A CN 103031404A
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- iron
- briquetting
- chromium
- ball mill
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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
- Y02P10/20—Recycling
Abstract
The invention relates to a method for producing steel balls of a ball mill. The method comprises the following steps: I, composition: uniformly mixing raw materials of a fly ash mixture containing chromium-containing fly ash, an adhesive and water to form a mixture; II, pressing blocks: pressing the mixture into press blocks; III, screening: screening the maintained press blocks, wherein oversize products are served as smelting raw materials; IV preparing: uniformly mixing press blocks with coke, silica, fluorite and manganese ore in a mass ratio of 60-80: 20-30: 3-10: 1-4: 2-8; V, smelting: adding the prepared raw materials to a small blast furnace through a furnace opening, and discharging molten iron into an electric furnace; and VI, regulating ingredients: charging chromium-containing molten iron into the electric furnace, adding lime and cast iron, regulating ingredients, flowing into a mould and pouring to form chromium-containing steel balls. The method for producing the steel balls of the ball mill, disclosed by the invention, has the advantages of simple devices, low investment and low operation cost.
Description
Technical field
The present invention relates to a kind of method of producing ball mill steel ball.
Background technology
In the process of ore dressing, realize separating of metal and gangue, need ore is carried out fine grinding below 200 orders, just can do further processing.In the process of fine grinding, usually realize by ball mill, because domestic mine substantially all is the mineral ore that is difficult to separate, the a large amount of Stainless Steel Ball of process need in the mill choosing, the method of existing production ball mill steel ball is to extract chromium from chrome ore, and domestic chromium ore resource is comparatively poor, needs a large amount of imports, production cost is high, and stainless steel smelting enterprise produces in process of production a large amount of dedusting ash and can not utilize.
Summary of the invention
In order to overcome existing above-mentioned deficiency of producing the method for ball mill steel ball, the invention provides the method for the low production ball mill steel ball of a kind of cost.
The method of this production ball mill steel ball comprises following step successively:
(1) joins compound
The proportion by weight that forms the raw material of dedusting ash compound is:
Contain the chromium dedusting ash: 60～80 binding agents: 10～20 water: 7～15
Binding agent is bath of glass
Be mixed into compound containing chromium dedusting ash, binding agent and water.
Above-mentioned two kinds of powder raw materials all need be milled down to the following ratio of metric system 200 orders and account for more than 60%, and maximum particle diameter is 1mm.To the dedusting ash composition without particular requirement the quality of dedusting ash iron content (general be 40-70%).
(2) briquetting
Compound is pressed into briquetting, and the diameter of briquetting is 2.5～5cm, or the length of side is the square of 2.5～5cm, and oven dry or maintenance are to the intensity (requirement 〉=700N/ of intensity) of regulation;
(3) screening
The briquetting that maintenance is good sieves, and the size of sieve aperture is 8mm, and screen overflow is as raw materials for metallurgy.
(4) batching
Oven dry or good briquetting and coke, silica, fluorite and the manganese ore of maintenance are mixed, and the proportion by weight of these five kinds of raw materials is:
Briquetting 60～80 coke 20～30 silicas 3～10 fluorites 1～4 manganese ore 2～8.
Equating in the quality of each mass parts of this step and step () batching.
(5) smelt
The above-mentioned raw material for preparing is added to the small blast furnace with iron notch and air port (generally using single iron notch and single air port) from fire door, blow after three hours, open slag notch, slag tap, block slag notch after having gone out slag, realize the separation of slag, iron, open again iron notch, the molten iron of smelting is gone out to molten iron directly to enter electric furnace;
The mass percent of smelting the hot metal composition that is:
C：3.0～5.5％ Si：1.0～2.5％ Mn：0.5～2.0％ P：0.05～0.1％
All the other are Fe and inevitable impurity for S:0.15～0.30% Cr 5～10%.
The mass percent of smelting the slag that is:
CaO：30～37％；SiO
2 37～47％；MgO：5.0～11％；Al
2O
3：6～15％。
(6) be adjusted to the dispensing ball:
With the chromium-containing molten iron electric furnace of packing into, add lime and the pig iron, adjusting component, (diameter 400～600mm) pours into the chrome-bearing steel ball to flow into circular die
The mass parts that electric furnace adds pan feeding is:
Molten iron 70～80 pig iron 20～40 CaO 3～5.
Equating in the quality of each mass parts of this step and step () batching.
The mass percent of molten steel:
C：0.5～1.8％ Si：0.2～0.4％ Mn：0.5～2.0％ P：0.01～0.02％
All the other are Fe and inevitable impurity for S:0.01～0.02% Cr:3～8%.
The method of above-mentioned production ball mill steel ball is characterized in that:
The granularity of fluorite is 3～8mm, CaF2 〉=90%
The granularity of manganese ore is 3～8mm, MnO 〉=12%
The granularity of coke is 40～100mm, and wherein P, S, ash content, fugitive constituent and C are:
P≤0.03%, S≤0.6%, ash content≤10%, fugitive constituent≤1.5%, C 〉=86%
The granularity of silica is 5～15mm, SiO2 〉=96% CaO≤0.1% MgO≤0.2%.
Stainless steel smelting enterprise produces a large amount of dedusting ash in process of production, than chrome ore, higher chromium essence is arranged, because generation is larger, particle is little, can not all realize the recycle of self.The method of this production ball mill steel ball utilizes stainless steel smelting enterprise to produce in process of production a large amount of dedusting ash, reduces exploitation and the import of many chrome ores, and equipment is simple, less investment, improves the level of resources utilization, and coke ratio is low, and running cost is low.
Embodiment
Describe the specific embodiment of the present invention in detail below in conjunction with embodiment, but the specific embodiment of the present invention is not limited to following embodiment.
Embodiment
(1) joins compound
The proportion by weight that forms the raw material of dedusting ash compound is:
Contain the chromium dedusting ash: 75 binding agents: 15 water: 10
Each mass parts of present embodiment is 500kg.
Binding agent is bath of glass
Be mixed into compound containing chromium dedusting ash, binding agent and water.
Above-mentioned two kinds of powder raw materials all need be milled down to the following ratio of metric system 200 orders and account for more than 60%, and maximum particle diameter is 1mm.
Wherein the mass percent of the main component of dedusting ash is:
Fe
2O
3：45.3 FeO：0.36 SiO
2：7.51 AI
2O
3：8.67 CaO：17.24
MgO：3.71 P：0.019 S：0.126 MnO：0.63
(2) briquetting
Compound is pressed into briquetting, and briquetting is the square of 5cm for each length of side.Then with the agglomerate oven dry, oven dry is to the intensity of regulation, and the requirement 〉=700N/ of intensity is individual;
(3) screening
The briquetting that maintenance is good sieves, and the size of sieve aperture is 8mm, and screen overflow is as raw materials for metallurgy.
(4) batching
Briquetting and coke, silica, fluorite and the manganese ore of oven dry are mixed, and the proportion by weight of these five kinds of raw materials is:
Briquetting 60.3 coke 30.3 silicas 5.4 fluorites 2 manganese ores 2 each mass parts are 500kg.
(5) smelt
The above-mentioned raw material for preparing is added to the small blast furnace with iron notch and air port from fire door, blow after three hours, open slag notch, slag tap, block slag notch after having gone out slag, realize the separation of slag, iron, open again iron notch, the molten iron of smelting is gone out to molten iron directly to enter electric furnace, and the quality per distribution ratio of smelting the hot metal composition that is:
C：3.5％ Si：0.6％ Mn：0.8％ P：0.08％
All the other are Fe and inevitable impurity for S:0.12% Cr:3.4%.
The mass percent of smelting the slag that is:
CaO：36.4％；SiO
2 38.1％；MgO：7.2％；Al
2O
3：10.1％；Cr
2O
3 1.67％
Other are can't analysis ingredient for FeO 0.72%.
(6) be adjusted to the dispensing ball:
With the chromium-containing molten iron electric furnace of packing into, add lime and the pig iron, adjusting component flows into circular die (diameter 500mm), pours into the chrome-bearing steel ball
The mass parts that electric furnace adds pan feeding is:
Molten iron 80 pig iron 16.5 CaO 3.5; Each mass parts is 500kg.
Steel quality per-cent:
C：0.5％ Si：0.25％ Mn：0.56％ P：0.015％
All the other are Fe and inevitable impurity for S:0.018% Cr:2.6%.
The granularity of the fluorite of present embodiment is 3～8mm, CaF292%; The granularity of manganese ore is 3～8mm, and MnO 12%; The granularity of coke is 40～100mm, and wherein P, S, ash content, fugitive constituent and C are:
P 0.035%, S 0.52%, ash content 8%, fugitive constituent 1.2%C 88%.
The granularity of silica is 5～15mm, SiO2 96% CaO 0.1% MgO 0.2%.
The described small blast furnace of present specification refers to that volume is not more than 8m
3Iron-smelting furnace.
Claims (3)
1. method of producing ball mill steel ball, it comprises following step successively:
I joins compound
The proportion by weight that forms the raw material of dedusting ash compound is:
Contain the chromium dedusting ash: 60～80 binding agents: 10～20 water: 7～15
Binding agent is bath of glass, is mixed into compound containing chromium dedusting ash, binding agent and water, and above-mentioned two kinds of powder raw materials all need be milled down to the following ratio of metric system 200 orders and account for more than 60%, and maximum particle diameter is 1mm; The dedusting ash iron content is 40-70%;
The II briquetting
Compound is pressed into briquetting, and the diameter of briquetting is 2.5～5cm, or the length of side is the square of 2.5～5cm, and oven dry or maintenance are to the intensity of regulation; Requirement 〉=the 700N/ of intensity;
The III screening
The briquetting that maintenance is good sieves, and the size of sieve aperture is 8mm, and screen overflow is as raw materials for metallurgy;
The IV batching
Oven dry or good briquetting and coke, silica, fluorite and the manganese ore of maintenance are mixed, and the proportion by weight of these five kinds of raw materials is:
Briquetting 60～80 coke 20～30 silicas 3～10 fluorites 1～4 manganese ore 2～8;
Equating in the quality of each mass parts of this step and the step I batching;
V smelts
The above-mentioned raw material for preparing is added to the small blast furnace with iron notch and air port from fire door, blows after three hours, open slag notch, slag tap, block slag notch after having gone out slag, realize the separation of slag, iron,
Open iron notch again, the molten iron of smelting is gone out to molten iron directly to enter electric furnace, the mass percent of smelting the hot metal composition that is:
C：3.0～5.5％ Si：1.0～2.5％ Mn：0.5～2.0％ P：0.05～0.1％
S:0.15～0.30% Cr 5～10%; All the other are Fe and inevitable impurity;
VI is adjusted to the dispensing ball
With the chromium-containing molten iron electric furnace of packing into, add lime and the pig iron, adjusting component flows into circular die, pours into the chrome-bearing steel ball;
The mass parts that electric furnace adds pan feeding is:
Molten iron 70～80 pig iron 20～40 CaO 3～5;
Equating in the quality of each mass parts of this step and the step I batching;
The mass percent of molten steel:
C：0.5～1.8％ Si：0.2～0.4％ Mn：0.5～2.0％ P：0.01～0.02％
All the other are Fe and inevitable impurity for S:0.01～0.02% Cr:3～8%.
2. the method for production ball mill steel ball according to claim 1, it is characterized in that: the granularity of described fluorite is 3～8mm, CaF2 〉=90%;
The granularity of manganese ore is 3～8mm, MnO 〉=12%;
The granularity of coke is 40～100mm, and wherein P, S, ash content, fugitive constituent and C are
P≤0.3%, S≤0.6%, ash content≤10%, fugitive constituent≤1.6% C 〉=86%;
The granularity of silica is 5～15mm, SiO2 〉=96 CaO≤0.1 MgO≤0.2.
3. the method for production ball mill steel ball according to claim 1 and 2, it is characterized in that: the quality per distribution ratio of smelting the slag that is:
CaO：30～37％；SiO
2 37～47％；MgO：5.0～11％；Al
2O
3：6～15％。
Priority Applications (1)
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|---|---|---|---|
| CN2011103060212A CN103031404A (en) | 2011-09-30 | 2011-09-30 | Method for producing steel balls of ball mill |
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|---|---|---|---|
| CN2011103060212A CN103031404A (en) | 2011-09-30 | 2011-09-30 | Method for producing steel balls of ball mill |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103290227A (en) * | 2013-06-20 | 2013-09-11 | 嘉峪关大友企业公司 | Preparation method of nickel-chromium cast iron with stainless steel dedusting ash as raw material |
| CN104928465A (en) * | 2015-06-09 | 2015-09-23 | 日照海润天成能源有限公司 | Processing technology used for making fine powder of chrome ore pellets |
| CN105087834A (en) * | 2015-08-18 | 2015-11-25 | 山西太钢不锈钢股份有限公司 | Utilization method for acid regeneration iron powder |
| CN110093509A (en) * | 2019-04-30 | 2019-08-06 | 金堆城钼业股份有限公司 | A method of utilizing the cigarette ash of bulk containing molybdenum Smelting Ferromolybdenum |
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| EP1147069B1 (en) * | 1998-10-15 | 2008-04-09 | Lee, Ki-Gang | Ceramic composition made from waste materials and method for manufacturing of sintered bodies therefrom |
| CN101629237A (en) * | 2009-07-30 | 2010-01-20 | 山西太钢不锈钢股份有限公司 | Method for utilizing stainless steel dust and laterite as iron making materials |
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| CN101665868A (en) * | 2009-07-30 | 2010-03-10 | 山西太钢不锈钢股份有限公司 | Method for utilizing stainless steel removed dust as ironmaking raw material |
| CN101748332A (en) * | 2010-01-14 | 2010-06-23 | 河北豪特耐磨材料有限公司 | Ultra-wear-resistant cast-steel grinding ball and preparation method thereof |
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2011
- 2011-09-30 CN CN2011103060212A patent/CN103031404A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1147069B1 (en) * | 1998-10-15 | 2008-04-09 | Lee, Ki-Gang | Ceramic composition made from waste materials and method for manufacturing of sintered bodies therefrom |
| CN101629237A (en) * | 2009-07-30 | 2010-01-20 | 山西太钢不锈钢股份有限公司 | Method for utilizing stainless steel dust and laterite as iron making materials |
| CN101665868A (en) * | 2009-07-30 | 2010-03-10 | 山西太钢不锈钢股份有限公司 | Method for utilizing stainless steel removed dust as ironmaking raw material |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103290227A (en) * | 2013-06-20 | 2013-09-11 | 嘉峪关大友企业公司 | Preparation method of nickel-chromium cast iron with stainless steel dedusting ash as raw material |
| CN104928465A (en) * | 2015-06-09 | 2015-09-23 | 日照海润天成能源有限公司 | Processing technology used for making fine powder of chrome ore pellets |
| CN105087834A (en) * | 2015-08-18 | 2015-11-25 | 山西太钢不锈钢股份有限公司 | Utilization method for acid regeneration iron powder |
| CN110093509A (en) * | 2019-04-30 | 2019-08-06 | 金堆城钼业股份有限公司 | A method of utilizing the cigarette ash of bulk containing molybdenum Smelting Ferromolybdenum |
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Application publication date: 20130410 |