CN1060874A - Briquetting method for powdered alloy - Google Patents
Briquetting method for powdered alloy Download PDFInfo
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- CN1060874A CN1060874A CN90106404A CN90106404A CN1060874A CN 1060874 A CN1060874 A CN 1060874A CN 90106404 A CN90106404 A CN 90106404A CN 90106404 A CN90106404 A CN 90106404A CN 1060874 A CN1060874 A CN 1060874A
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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
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- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Powder Metallurgy (AREA)
Abstract
A kind of briquetting method for powdered alloy that belongs to the iron alloy field, utilize alloyed scrap, adopting silicium-iron powder or silicium-manganese powder to become ferromanganese powder is raw material, through rational batching, do mix, wet mixing, ageing mixture, putting into forced stirrer stirs, extrusion forming, drying is a kind of alloy powder ball new alloy, and this alloy physics performance and Chemical Composition are similar to former alloy bulk, reach the GB4008-83 standard, can replace former alloy deoxidation, and satisfy the requirement of deoxidation behind stokehold, the stove, reduce alloy consumption, reduce production costs, increase economic benefit.
Description
A kind of briquetting method for powdered alloy that belongs to the iron alloy field.
At present, silicon iron, silicon manganese, ferromanganese that steel-making is used, all requiring has certain lumpiness, and therefore, essential process Mechanical Crushing is crushed to lumpiness 20-80mm, and the percentage of damage of 5-8% is arranged in shattering process, the alloy powder of a large amount of granularity 0-10mm occurs.This alloy powder is in national steel mill, and annual about 200,000 tons of the alloy powder that produces is difficult to use.
Anshan iron and steel plant adopts the method for baking for utilizing alloy powder, and the oven dry pack is given steel mill and used.For reasons such as the humidities that prevents to rain, can only transport by automobile, separately management, cause very big difficulty for big production management, especially use the low fluctuation of alloy powder deoxidation recovery rate big, cause easily to change steel, baking is not sometimes done also influences quality, again can not the stokehold deoxidation, can only be when smelting general steel in the jar deoxidation use, therefore, each steel mill all is reluctant to use, caused a large amount of of alloy powder to overstock, Alloy Plant overstocks underselling with the monovalent 30-40% of former alloy for reducing.
The purpose of this invention is to provide is not a kind ofly increasing in the alloy other unfavorable element and is not reducing substantially under the situation of alloying element content, utilize silicium-iron powder or silicium-manganese powder or ferromanganese powder to be raw material, produce a kind of alloy powder ball new alloy, its physicals and Chemical Composition are similar to former alloy bulk, reach the GB4008-83 standard, can replace the alloy deoxidation, and satisfy the requirement of deoxidation behind stokehold, the stove.
The present invention utilizes the alloyed scrap extrusion forming, reduces alloy consumption, reduces production costs, and increases economic benefit, replaces former alloy deoxidation.
Its economic benefit can be divided into generation material processing or buy material and sell finished product.
1, generation material processing.In generation, expected processing without current assets, minimum 200 yuan per ton of process cost, and the about 50 yuan/t of cost labour cost, annual production 1000-10000 ton, its benefit is
1000t * (200 yuan/t-50 unit/t)=1050000 yuan
2, buying material and sell finished product, is example with the silicium-iron powder, 900 yuan/t of silicium-iron powder bid, and 50 yuan/t of cost process cost, 2400 yuan/t of finished product silicon iron, 2000 yuan/t of silicium-iron powder group's price, 3000 tons of annual productions, its benefit is:
3000t * (2000 yuan/t-900 unit/t-50 unit/t)=3150000 yuan
Advantage of the present invention is as follows:
1, the raw material abundance is cheap.
2, product reaches international requirement, and it is without hindrance to be in great demand.
3, technology is simple, and is easy to operate.
4, equipment is simple, invests for a short time, needs factory building 200M
2, facility investment is no more than 200,000.
5, found the factory soon, high efficiency can all be returned investment in 3-6 month.
Alloy powder is difficult to directly use, and general alloy powder is pressed group's insufficient strength again, becomes powder in the transportation again, and inconvenience is used.
Manufacture method of the present invention:
1, rational ratio of components:
Silicium-iron powder or silicium-manganese powder or ferromanganese powder are that the ratio of components of raw material is respectively: see Table one
Ratio of components table
| Granularity (mm) | 2－9 | 0－1.99 | ≤0.1 |
| Ratio of components (%) | 50 | 15 | 35 |
All % counts by weight.
2, do mixed, wet mixing:
The raw material uniform mixing for preparing is mixed for doing, add the tackiness agent that does not influence deoxidation in steel making and intermediate frequency furnace smelting Si-Al-Fe then and be mixed evenly, be the wet mixing raw material, now adopt water glass binder, this not carburetting of tackiness agent does not increase hydrogen, only increases silicon, potassium, sodium etc. and helps deoxidant element, its binder dosage is 3-10%, wet mixing process 15-26 minute, ageing mixture 2-4 hour, through forced stirrer, stirred 25 minutes, and became work in-process.The stirring extent quality depend on do to mix, wet mixing and etc. the time length of material, ftracture or slabbing otherwise will produce.
3, drying: be the key of removing moisture content and guaranteeing cold crushing strength.With the work in-process briquetting machine extrusion forming of packing into, its specification is 70 * 50 * 30mm, is finished product, and finished product is placed on tunnel furnace inner drying 6-8 hour of temperature 〉=120 ℃, makes finished product water content≤0.005%(% meter by weight), can use.
Technical process:
Ball milling-batching-batch mixing-moulding-drying-finished product.
Embodiment:
1, the index contrast (seeing Table two) of silicium-manganese powder group product
Product index contrast table (table two)
The GB4008-83 contrast is pressed by silicium-manganese powder group, contains gold content a little less than Mn
65Si
17, but be higher than Mn
60Si
14Therefore trade mark silicon manganese, can normally use by finished product.
2, production unit situation
Factory building height 〉=3.5M, area ≮ 300M
2, its major equipment has:
(1), sieve aperture 6mm sieve is two.
(2), one in vibratory screening apparatus, model SZZ800 * 1600 individual layer self-fixed centre shale shakers, motor Y100L
1-4, N=2.2KW, the place of production: Anshan mining machinery plant, 1.2 ten thousand yuan of reference prices.
(3), one on ball mill, model ∮ 900 * 800 ball mills, electric motor T03-200M-8N=22KW, the place of production: Shanghai Metallurgy Mine Machinery Factory, 40,000 yuan of reference prices.
(4), one of forced stirrer, model BH22 forced stirrer, electric motor Y160L-4, N=15KW, the place of production: Wenzhou mining machinery plant, 4.7 ten thousand yuan of reference prices.
(5), one of briquetting machine, motor carries, step-down gear 650 is than speed 40.17,36 rev/mins of rotating speeds, N=22KW, hourly output 13-15 ton, the place of production: kettle reed island zinc factory, 60,000 yuan of reference prices.
(6), flint road dry kiln, adopt gas blower air blast internal combustion type flint road dry kiln, long 20 meters, high 1.8 meters, wide 1.5 meters, self-built, 30,000 yuan of reference prices.
Total power: ∑ N=63.2KW
Gross investment: 200,000 yuan
Claims (2)
1, a kind of briquetting method for powdered alloy that is applicable to the iron alloy field is characterized in that:
A, employing silicium-iron powder are the ratio of components of raw material, and its granularity 2-9mm is 50%, and 0-1.99mm is 15%, and≤0.1mm is 35%.(all % counts by weight)
B, dried mixed, wet mixing:
With the raw material for preparing dried be mixed even after, add the water glass binder of 3-10%, become the wet mixing raw material, wet mixing 15-26 minute, ageing mixture 2-4 hour, through forced stirrer, stirred 25 minutes, become work in-process.
C, drying: with the work in-process briquetting machine extrusion forming of packing into is finished product, and finished product is placed on tunnel furnace inner drying 6-8 hour of temperature 〉=120 ℃, makes finished product water content≤0.005% (% meter by weight).
2, briquetting method for powdered alloy according to claim 1 is characterized in that: adopting silicium-manganese powder or ferromanganese powder is raw material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN90106404A CN1060874A (en) | 1990-10-20 | 1990-10-20 | Briquetting method for powdered alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN90106404A CN1060874A (en) | 1990-10-20 | 1990-10-20 | Briquetting method for powdered alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1060874A true CN1060874A (en) | 1992-05-06 |
Family
ID=4880045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN90106404A Pending CN1060874A (en) | 1990-10-20 | 1990-10-20 | Briquetting method for powdered alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1060874A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100424196C (en) * | 2006-06-08 | 2008-10-08 | 鞍钢附企三炼钢修造总厂 | Lf furnace steel slag ball |
| CN100588725C (en) * | 2003-12-25 | 2010-02-10 | Ntn株式会社 | Steel manufacturing dust solidified, process for producing the same and production apparatus therefor |
| CN102372304A (en) * | 2010-08-18 | 2012-03-14 | 河北钢铁股份有限公司承德分公司 | Physical preparation method of high density vanadium oxide powder |
| CN102534203A (en) * | 2011-12-31 | 2012-07-04 | 上海盛宝冶金科技有限公司 | Photovoltaic silicon alloy ball and production method thereof |
| CN111996369A (en) * | 2020-08-28 | 2020-11-27 | 江苏江南铁合金有限公司 | Ferrochromium powder ball for steelmaking and preparation method thereof |
-
1990
- 1990-10-20 CN CN90106404A patent/CN1060874A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100588725C (en) * | 2003-12-25 | 2010-02-10 | Ntn株式会社 | Steel manufacturing dust solidified, process for producing the same and production apparatus therefor |
| CN100424196C (en) * | 2006-06-08 | 2008-10-08 | 鞍钢附企三炼钢修造总厂 | Lf furnace steel slag ball |
| CN102372304A (en) * | 2010-08-18 | 2012-03-14 | 河北钢铁股份有限公司承德分公司 | Physical preparation method of high density vanadium oxide powder |
| CN102372304B (en) * | 2010-08-18 | 2013-04-17 | 河北钢铁股份有限公司承德分公司 | Physical preparation method of high density vanadium oxide powder |
| CN102534203A (en) * | 2011-12-31 | 2012-07-04 | 上海盛宝冶金科技有限公司 | Photovoltaic silicon alloy ball and production method thereof |
| CN111996369A (en) * | 2020-08-28 | 2020-11-27 | 江苏江南铁合金有限公司 | Ferrochromium powder ball for steelmaking and preparation method thereof |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |