CN110343938A - Utilize the method for variable frequency induction melting furnace remelting alloy powder - Google Patents
Utilize the method for variable frequency induction melting furnace remelting alloy powder Download PDFInfo
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- CN110343938A CN110343938A CN201910735408.6A CN201910735408A CN110343938A CN 110343938 A CN110343938 A CN 110343938A CN 201910735408 A CN201910735408 A CN 201910735408A CN 110343938 A CN110343938 A CN 110343938A
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- furnace
- alloy powder
- remelting
- variable frequency
- frequency induction
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Furnace Details (AREA)
Abstract
Utilize the method for variable frequency induction melting furnace remelting alloy powder.Its process flow are as follows: alloy powder is transported to remelting workshop from raw material storage；Enter stokehold, in batches alloy powder coherent element chemically examine and record into stokehold；Alloy powder enters manually or automatically cloth system through conveyer belt or lifting；Alloy powder is inputted in variable frequency induction remelting furnace by designed burn-off rate and is melted, until full furnace；Scarfing cinder purified treatment in furnace, sampling are done stokehold and are quickly chemically examined, and prepare to come out of the stove after product is qualified；Tapping casting nature block enters automatic casting ingot mould.It is to solve powder of the ferroalloy bulk material after broken, finishing, screening further to be reused that it, which leads and plays, promotes product purity and the rate of recovery.
Description
Technical field
The invention belongs to field of metallurgy, in particular to a kind of side using variable frequency induction melting furnace remelting alloy powder
Method.
Background technique
Extensive ferroalloy materials generally use metallurgical submerged arc electric arc furnaces (mineral hot furnace), carry out high temperature to raw ore in furnace
Reduction obtains corresponding metal intermediate alloy, blocking through casting, and obtains variable grain size using broken, finishing, screening
Ferroalloy is supplied to iron and steel enterprise as the additive of molten steel, deoxidier, nodulizer, profit and educates the materials such as agent.Broken, finishing,
About 8-15% can be generated in screening process, granularity is less than the alloy powder and slag of 3mm, the meticulous alloy powder in this part
It with slag since smelting cost is excessively high, is easily sucked by dust collecting system, so cannot directly enter mineral hot furnace carries out secondary smelting, needs
It wants a kind of novel device and technique to carry out remelting, removal of impurities processing to it, improves the recovery rate of ferroalloy productor, increase business economic
Benefit.
Summary of the invention
The present invention existing mineral hot furnace remelting alloy powder there are aiming at the problem that, provide a kind of using variable frequency induction
The method of melting furnace remelting alloy powder, to reach small investment, technique is easy to control, extensibility is strong, can be recycled, purify it is a variety of
The effect of alloy powder.
Using the method for variable frequency induction melting furnace remelting alloy powder, concrete technology flow process is as follows:
(1) alloy powder is transported to remelting workshop (scene) from raw material storage；
(2) enter stokehold, in batches alloy powder coherent element chemically examine and record into stokehold；
(3) alloy powder enters manually or automatically cloth system through conveyer belt or lifting；
(4) alloy powder is inputted in variable frequency induction remelting furnace by designed burn-off rate and is melted, until full furnace；
(5) scarfing cinder purified treatment in furnace, sampling are done stokehold and are quickly chemically examined, and prepare to come out of the stove after product is qualified；
(6) tapping casting nature block or entrance automatic casting ingot mould；
(7) classification is weighed stacking after finished product ferroalloy is cooling, into warehouse for finished product and is recorded.
The present invention has following remarkable result: frequency-conversion induction furnace is to be based on electromagnetic inductive heating principle, can be to metal, metal
Alloy, semiconductor material carry out a kind of direct-fired remelting device, are widely used in the machinery such as metal casting, diathermanous, quenching and add
Industrial and commercial bank's industry utilizes mature not yet technology and technique to the secondary cycle of metal alloy powder particles.The present invention is namely based on frequency conversion
Induction furnace principle targetedly carries out special designing to core component, proposes a kind of utilization frequency-conversion induction furnace remelting iron conjunction
The method and process flow of bronze grain can carry out removal of impurities purification to ferroalloy, improve the recovery rate of ferroalloy.This process
Equipment investment less, ton power consumption is low, occupation area of equipment is smaller, work circumstances safe does not pollute, and is conducive to environmental protection, economical
Considerable benefit, extendability is strong, has extremely strong promotional value and meaning in the ferroalloy industry.
Specific embodiment
1, it for the electromagnetic property and physical characteristic of different ferroalloys, designs, select corresponding variable frequency induction furnace system
And matched process flow and facility；
(1) alloy powder is transported to remelting workshop (scene) from raw material storage；
(2) enter stokehold, in batches alloy powder coherent element chemically examine and record into stokehold；
(3) alloy powder enters manually or automatically cloth system through conveyer belt or lifting；
(4) alloy powder is inputted in variable frequency induction remelting furnace by designed burn-off rate and is melted, until full furnace；
(5) scarfing cinder purified treatment in furnace, sampling are done stokehold and are quickly chemically examined, and prepare to come out of the stove after product is qualified；
(5) tapping casting nature block or entrance automatic casting ingot mould；
(6) classification is weighed stacking after finished product ferroalloy is cooling, into warehouse for finished product and is recorded.
2, the design and type selecting of variable frequency induction melting furnace system:
(1) variable frequency induction melting furnace type of furnace size and configuration variable-frequency power sources power depend on specific yield (annual output)；
(2) variable frequency induction melting furnace inductor is special, special designs, is different from common intermediate frequency furnace inductor；
(3) furnace body has the magnetic screen (magnetic yoke) of non-water cooling and receives magnetic system (inside and outside short-circuited conducting sleeve), reduces power consumption；
(4) variable-frequency power sources should meet the characteristic of alloy powder remelting, and power and frequency match, and reduce power consumption, improve production
Rate.
3, the auxiliary equipment that must be configured by the requirement of variable frequency induction melting furnace system:
(1) provide main power supply system by the capacity of variable-frequency power sources (comprising high-tension switch cabinet and rectifier transformer)；
(2) accessory power supply, hydraulic, water pump, dust collecting system are provided by variable frequency induction furnace system；
(3) variable-frequency power sources and furnace body cooling water because of cooling condition and require different, it is necessary to separate.Variable-frequency power sources is closed using distilled water
Formula is cooling, and furnace body is cooling using softened water enclosed；
(4) mode is toppled over using stable hydraulic turndown, adds hydraulic furnace lining liftout attachment；
(5) the integrated form bag collection system in remelting and casting process is configured；
(6) according to the characteristic of melted alloy powder, corresponding furnace lining material is selected, brickwork and sintering process are provided.
4, auxiliary equipment can be added by variable frequency induction melting furnace system:
(1) automatic feed mechanism；
(2) manually or automatically material-feeding mechanism；
(3) manually or automatically high-temperature stirring device；
(4) multichannel both analysis instrument；
(5) the electronic ingot mould of natural cooling or Forced water cooling.
Claims (4)
1. using the method for variable frequency induction melting furnace remelting alloy powder, it is characterized in that: utilizing variable frequency induction melting furnace remelting
Alloy powder, by following process flow production, the ferroalloy materials of recycling high-purity:
(1) it according to the electromagnetic property of ferroalloy and physical characteristic, designs, select corresponding variable frequency induction melting furnace system；
(2) stokehold chemical examination is carried out to the alloy powder of investment frequency-conversion induction furnace and recorded；
(3) gradually alloy powder is added in frequency-conversion induction furnace by feeding device and carries out remelting, ensured in reflow process
It does not take fluffy in furnace, does not agglomerate, keep ferroalloy in furnace in a molten state；
(4) need to do mechanical stirring appropriate according to the characteristic of ferroalloy, agitating device mustn't bring pollution to original product；
(5) it is all melted to metal alloy, is warming up to tapping temperature, slag making, purified treatment are needed according to the characteristic of metal alloy；
(6) it supplements, adjust ferroalloy ingredient, liquid sample is done before coming out of the stove and quickly chemically examines and records；
(7) according to different types of ferroalloy, corresponding casting mode is set；
(8) according to different types of ferroalloy, furnace domestic demand stays certain residual night, to guarantee the feeding of frequency-conversion induction furnace power.
2. the method according to claim 1 using variable frequency induction melting furnace remelting alloy powder, it is characterized in that: according to
The electromagnetic property and physical characteristic of ferroalloy design, select corresponding variable frequency induction melting furnace system, and particular technique requires such as
Under:
(1) variable frequency induction melting furnace type of furnace size and configuration variable-frequency power sources power depend on specific yield (annual output)；
(2) variable frequency induction melting furnace inductor is special designs, is different from common intermediate frequency furnace inductor；
(3) furnace body has the magnetic screen (magnetic yoke) of non-water cooling and receives magnetic system (inside and outside short-circuited conducting sleeve), reduces power consumption；
(4) variable-frequency power sources should meet the characteristic of alloy powder remelting, and power and frequency match, and reduce power consumption, improve production
Rate.
3. the method according to claim 2 using variable frequency induction melting furnace remelting alloy powder, characterized in that frequency conversion
The auxiliary equipment of induction furnace system configuration are as follows:
(1) provide main power supply system by the capacity of variable-frequency power sources (comprising high-tension switch cabinet and rectifier transformer)；
(2) accessory power supply, hydraulic, water pump, dust collecting system are provided by variable frequency induction furnace system；
(3) variable-frequency power sources and furnace body cooling water because of cooling condition and require different, it is necessary to separate, variable-frequency power sources is closed using distilled water
Formula is cooling, and furnace body is cooling using softened water enclosed；
(4) mode is toppled over using stable hydraulic turndown, adds hydraulic furnace lining liftout attachment；
(5) the integrated form bag collection system in remelting and casting process is configured；
(6) according to the characteristic of melted alloy powder, corresponding furnace lining material is selected, brickwork and sintering process are provided.
4. a kind of method of variable frequency induction melting furnace remelting alloy powder according to claim 1, characterized in that add
Auxiliary equipment are as follows:
(1) automatic feed mechanism；
(2) manually or automatically material-feeding mechanism；
(3) manually or automatically high-temperature stirring device；
(4) multichannel both analysis instrument；
(5) the electronic ingot mould of natural cooling or Forced water cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910735408.6A CN110343938A (en) | 2019-08-09 | 2019-08-09 | Utilize the method for variable frequency induction melting furnace remelting alloy powder |
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| CN201910735408.6A CN110343938A (en) | 2019-08-09 | 2019-08-09 | Utilize the method for variable frequency induction melting furnace remelting alloy powder |
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| CN110343938A true CN110343938A (en) | 2019-10-18 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58141362A (en) * | 1982-02-15 | 1983-08-22 | Showa Denko Kk | Method for dephosphorizing silicon alloy |
| CN1110330A (en) * | 1994-04-04 | 1995-10-18 | 王幼君 | Method for smelting iron alloy containing manganese and silicon in midfrequency electric furnace |
| CN1373231A (en) * | 2001-03-05 | 2002-10-09 | 朱兴发 | Method for smelting middle-or low-carbon ferromanganese by frequency-conversion induction furnace |
| CN1373229A (en) * | 2001-03-05 | 2002-10-09 | 朱兴发 | Method for smelting stainless steel with waste steel by frequency-conversion electric induction furnace |
| CN1767697A (en) * | 2005-10-07 | 2006-05-03 | 朱兴发 | Electroslag furnace thyratron transistor low-frequency heating and smelting apparatus |
| CN201256460Y (en) * | 2008-08-21 | 2009-06-10 | 西安诚瑞科技发展有限公司 | Frequency conversion control device for induction furnace |
| CN101657048A (en) * | 2008-08-21 | 2010-02-24 | 西安诚瑞科技发展有限公司 | Variable-frequency control systems of induction furnace |
| EP2455501A1 (en) * | 2009-07-15 | 2012-05-23 | Kabushiki Kaisha Kobe Seiko Sho | Method for producing alloy ingots |
-
2019
- 2019-08-09 CN CN201910735408.6A patent/CN110343938A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58141362A (en) * | 1982-02-15 | 1983-08-22 | Showa Denko Kk | Method for dephosphorizing silicon alloy |
| CN1110330A (en) * | 1994-04-04 | 1995-10-18 | 王幼君 | Method for smelting iron alloy containing manganese and silicon in midfrequency electric furnace |
| CN1373231A (en) * | 2001-03-05 | 2002-10-09 | 朱兴发 | Method for smelting middle-or low-carbon ferromanganese by frequency-conversion induction furnace |
| CN1373229A (en) * | 2001-03-05 | 2002-10-09 | 朱兴发 | Method for smelting stainless steel with waste steel by frequency-conversion electric induction furnace |
| CN1767697A (en) * | 2005-10-07 | 2006-05-03 | 朱兴发 | Electroslag furnace thyratron transistor low-frequency heating and smelting apparatus |
| CN201256460Y (en) * | 2008-08-21 | 2009-06-10 | 西安诚瑞科技发展有限公司 | Frequency conversion control device for induction furnace |
| CN101657048A (en) * | 2008-08-21 | 2010-02-24 | 西安诚瑞科技发展有限公司 | Variable-frequency control systems of induction furnace |
| EP2455501A1 (en) * | 2009-07-15 | 2012-05-23 | Kabushiki Kaisha Kobe Seiko Sho | Method for producing alloy ingots |
Non-Patent Citations (1)
| Title |
|---|
| 康铭等: "浅谈中频感应熔炼炉的使用与维护", 《中国铸造装备与技术》 * |
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