CN102303121A - Efficient and low-consumption method for machining and crushing ferroalloy - Google Patents
Efficient and low-consumption method for machining and crushing ferroalloy Download PDFInfo
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- CN102303121A CN102303121A CN201110163319A CN201110163319A CN102303121A CN 102303121 A CN102303121 A CN 102303121A CN 201110163319 A CN201110163319 A CN 201110163319A CN 201110163319 A CN201110163319 A CN 201110163319A CN 102303121 A CN102303121 A CN 102303121A
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Abstract
The invention provides an efficient and low-consumption method for machining and crushing ferroalloy, wherein steps, such as ferrum taking, water quenching, machining and crushing and the like are sequentially carried out; a metallurgical structure inside a glowing red ferroalloy block with the temperature between 550 DEG C and 1000 DEG C is transformed into a brittle bulky longitudinal columnar crystal from a fine compact crystal form through water quenching; and a large number of cold microcracks are formed on the surface of the brittle bulky longitudinal columnar crystal, so that the method is particularly beneficial to the work of machining and crushing. The method completely changes the traditional manner for the crushing work of the ferroalloy, and the fine powder surface rate of the ferroalloy can be lowered below 5%, so that the method has positive significance for lowering the production cost of the ferroalloy, lightening the labor intensity for workers to carry out crushing work and saving energy and reducing emission, comprehensive utilization and saving mineral resources, and has an excellent economic benefit and has a good prospect for popularization and application.
Description
Technical field:
The present invention relates to the broken process technology of iron alloy block, belong to the technical field of ferroalloy production and processing, specifically a kind of efficient ferroalloy processing breaking method, it has solved existing
The ferroalloy product is processed the big and two high hang-ups of alloy face rate of broken labour intensity.
Background technology:
For a long time; Ferroalloy manufacturing enterprise mostly is the processing crushing operation that the traditional handicraft of always continuing to use " the broken processing → finished product packing warehouse-in of casting → play iron to have bad luck → machinery or manpower " is carried out production, and the ferroalloy bulk raw material of designated size requirement is provided for the client.Though; This conventional process techniques is quite ripe; But; For the lower high-quality high carbon ferromanganese and ferrochrome product of impurity silicone content; Because of himself hardness very high; Greatly increased broken difficulty of processing; To be objective; Iron alloy block for this type high rigidity can not adopt manpower directly to process fragmentation basically; And when adopting the machining crushing operation; Can produce a large amount of alloy fine powder faces again; According to statistics: with thickness is that the iron alloy block of 200mm is when being crushed to the finished product of 10mm～70mm granularity; Its face rate is up to 15%～25%; These fine powder ferroalloy faces or remelting are handled, and need increase about 1300 yuan of cost and handle ferroalloy fine powder face per ton, or can only allocate ore once more into melts down circulation smelting production again; This will cause in a large amount of raw mineral materials the scaling loss of main valuation element to run off and the repeat consumption electric power energy again, and this is the high especially and lower main cause of economic benefit of existing ferroalloy product energy consumption.Some adopt melt pit or ingot mould to implement the research of low thickness casting in recent years; The broken difficulty of processing of ferroalloy is decreased; To improving labor strength certain effect is arranged; But; Need not to dare not or would not speak up; The workman is still very arduous in processing crushing operation process, the efficient of broken operations extremely low (workman working day also 2 tons of certified products of multipotency processing), and in the process face rate still up to 10%～12%.Therefore, how further to reduce the product difficulty of processing, improve the broken work efficiency of processing and reduce the face rate that produces, and then improve the ferroalloy productivity effect.This is that existing ferroalloy manufacturing enterprise presses for and improves and perfect technical problem, and this also the present invention just wants the problem that solves.
Summary of the invention:
The objective of the invention is to be intended to overcome the above-mentioned weak point of prior art, and propose a kind of efficient ferroalloy processing breaking method, it can thoroughly solve existing ferroalloy product and process the big and two high hang-ups of alloy face rate of broken labour intensity.
The objective of the invention is to realize through following technical scheme:
A kind of efficient ferroalloy processing breaking method, it is characterized in that: it carries out successively according to the following steps:
⑴ get iron: the sclerosis of molten iron surface solidification after waiting to cast, and when temperature is reduced to 1000 ℃ ~ 700 ℃, the iron alloy block of red heat packed into to quench contain in the iron container, promptly accomplish and get the iron operation.
⑵ shrend is quenched: the quenching Sheng iron container that will fill the red heat iron alloy block is transported in the water quenching pool, iron block is submerged quench, and the control cool time is 20s ~ 720s, when the iron alloy block temperature is reduced to 500 ℃ ~ 100 ℃, carries out draining, naturally cooling.
The length of said water quenching pool, width are advisable can put, take out quenching Sheng iron container smoothly into; 1500mm's its upper surface was advisable apart from the water quenching pool top after its degree of depth was contained the iron container with the quenching of putting into; This quenching mode can make the inner through hardening fully of iron alloy block; To weakening toughness, increasing fragility positive effect is arranged, be particularly conducive to the finished machined crushing operation.
⑶ broken processing: shrend quenched is transferred to the broken processing of product place through the cooled naturally iron alloy block of draining in the step, carries out extremely desired granularity specification of hand breaking with hammer, and screening and packing gets final product again.
The present invention also has following technical characterictic:
In " shrend quenching " step; The quenching that fills red heat manganeisen piece is contained the iron container placement in top, water quenching pool bottom surface; The red heat iron alloy block of water pipe shower nozzle in the Sheng iron container that quenches carries out fierceness and waters water-quenching; Controlling the cool time of watering is 20s ~ 720s; Naturally cooling after when the iron alloy block temperature is reduced to 500 ℃ ~ 100 ℃, carrying out draining; Said draining is the water body of separate to quench containing in the iron container, can on carry quenching and contain iron container one side and topple over the separation water body.This water-quenching mode of watering also can make the inner through hardening fully of iron alloy block, to weakening toughness, increasing fragility positive effect is also arranged.
The interior diapire that the iron container is contained in used quenching can be provided with the pillar of supporting red heat iron alloy block, contains the interior diapire of iron container quenching, or sidewall, or interior diapire and sidewall wall body are provided with one group of draining hole.Pillar is set can avoids the red heat iron alloy block to be affixed on quench containing the interior diapire of iron container and make the bottom be difficult for through hardening, this has facilitation to improving quenching effect, the draining hole is set can separates automatically to quench and contain the water body in the iron container.
The thickness of the control iron alloy block of being cast is 20mm ~ 200mm, and helping in shrend quenching step can the through hardening iron alloy block, is convenient to especially it is carried out crushing operation.
In broken procedure of processing, can adopt disintegrating machine to carry out crushing operation, this is to improving crushing efficiency, alleviating labor strength certain effect is also arranged.
The present invention compares with prior art has following outstanding substantive distinguishing features and marked improvement:
The present invention has initiated the ferroalloy of " getting iron-shrend quenching-fragmentation processing " and has processed broken new technology, and it is the red heat iron alloy block that takes out to be put into the Sheng iron container that quenches deliver to the water liquid pool
Carrying out shrend quenches; Can make the iron alloy block inside metallographic is thick vertical column crystallization by trickle fine and close crystal transfer; Owing to the change of iron alloy block crystalline structure weakens toughness; Fragility increases; And produce a large amount of cold micro-cracks on the surface; Be particularly conducive to iron alloy block is carried out broken operations; It is fine and close thoroughly to have solved the iron alloy block crystal formation; Hardness is big; Intensity is high-leveled and difficult in the technical barrier of fragmentation; Make it can manually-operated can carry out crushing operation easily fully; Process the defective that produces a large amount of alloy faces and avoid the use of Mechanical Crushing; Can obviously improve working condition; Alleviate labor strength, to improving product percent of pass; Reduce energy resource consumption and very obvious effects is arranged with the increase economic benefit.
The specific embodiment:
Embodiment one:
A kind of efficient ferroalloy processing breaking method, it carries out successively according to the following steps:
⑴ get iron: when treating that high carbon ferromanganese alloy block surface temperature that cooled and solidified thickness in the ingot mould is about 150mm is reduced to about 900 ℃; The high carbon ferromanganese alloy block of red heat is extracted in ingot mould, and the diapire of packing into is provided with the quenching that lateral struts, interior diapire and sidewall be provided with one group of draining hole and contains in the iron container.
⑵ shrend is quenched: transfer with the quenching Sheng iron container handling that fills red heat high carbon ferromanganese alloy block in the driving step of will " getting iron " and it is submerged in the water body fully quench; The control cool time is 500s; Handling driving will quench and contain iron container proposition water quenching pool and carry out draining; Naturally after the cooling, again it is moved to broken processing place.
⑶ broken processing: carry out hand breaking to desired granularity specification with adze-eye hammer, screening and packing gets final product again.
Embodiment two:
A kind of efficient ferroalloy processing breaking method, it carries out successively according to the following steps:
⑴ get iron: when treating that high carbon ferromanganese alloy block surface temperature that cooled and solidified thickness in the ingot mould is about 80mm is reduced to about 750 ℃; The high carbon ferromanganese alloy block of red heat is extracted in ingot mould, and the diapire of packing into is provided with the quenching that lateral struts, interior diapire and sidewall be provided with one group of draining hole and contains in the iron container.
⑵ shrend is quenched: transfer with the quenching Sheng iron container handling that fills red heat high carbon ferromanganese alloy block in the driving step of will " getting iron " and it is submerged in the water body fully quench; The control cool time is 300s; Handling driving will quench and contain iron container proposition water quenching pool and carry out draining; Naturally after the cooling, again it is moved to broken processing place.
⑶ broken processing: carry out hand breaking to desired granularity specification with adze-eye hammer, screening and packing gets final product again.
Embodiment three:
A kind of efficient ferroalloy processing breaking method, it carries out successively according to the following steps:
⑴ get iron: when treating that high carbon ferro-chrome alloy red heat alloy block surface temperature that cooled and solidified thickness in the ingot mould is about 40mm is reduced to 700 ℃; Red heat high carbon ferro-chrome alloy block is extracted in ingot mould, and the diapire of packing into is provided with the quenching that lateral struts, interior diapire and sidewall be provided with one group of draining hole and contains in the iron container.
⑵ shrend is quenched: contain the handling of iron container with the quenching that fills red heat high carbon ferro-chrome alloy block in the driving step of will " getting iron " and transfer into above the water quenching pool bottom; The red heat high carbon ferro-chrome alloy block fierceness of water pipe shower nozzle in the Sheng iron container that quenches watered and quenched; Controlling the cool time of watering is 200s; After carrying out draining, again it is moved to broken processing place.
⑶ broken processing: carry out hand breaking to desired granularity specification with adze-eye hammer, screening and packing gets final product again.
Embodiment four:
A kind of efficient ferroalloy processing breaking method, it carries out successively according to the following steps:
⑴ get iron: when treating that high carbon ferro-chrome alloy red heat alloy block surface temperature that cooled and solidified thickness in the ingot mould is about 100mm is reduced to 850 ℃; Red heat high carbon ferro-chrome alloy block is extracted in ingot mould, and the diapire of packing into is provided with the quenching that lateral struts, interior diapire and sidewall be provided with one group of draining hole and contains in the iron container.
⑵ shrend is quenched: contain the handling of iron container with the quenching that fills red heat high carbon ferro-chrome alloy block in the driving step of will " getting iron " and transfer into above the water quenching pool bottom; The red heat high carbon ferro-chrome alloy block fierceness of water pipe shower nozzle in the Sheng iron container that quenches watered and quenched; Controlling the cool time of watering is 150s; After carrying out draining, again it is moved to broken processing place.
⑶ broken processing: carry out hand breaking to desired granularity specification with adze-eye hammer, screening and packing gets final product again.
The above-mentioned efficient ferroalloy processing breaking method that the present invention proposes is when longer
The on probation of phase shows: red heat ferroalloy product castable is after shrend is quenched; Can obviously improve the broken operations environment of finishing, greatly alleviate working strength of workers and improve crushing operation production efficiency; Alloy fine powder face rate can be reduced to 2%-5%, and, resources conservation energy-saving and cost-reducing to smelter and comprehensive utilization have great economic and social benefit.
Claims (5)
1. an efficient ferroalloy is processed breaking method, and it is characterized in that: it carries out successively according to the following steps:
⑴ get iron: the sclerosis of molten iron surface solidification after waiting to cast, and when temperature is reduced to 1000 ℃ ~ 700 ℃, the iron alloy block of red heat packed into to quench contain in the iron container, promptly accomplish and get the iron operation,
⑵ shrend is quenched: the quenching Sheng iron container that will fill the red heat iron alloy block is transported in the water quenching pool, iron block is submerged quench, and the control cool time is 20s ~ 720s, when the iron alloy block temperature is reduced to 500 ℃ ~ 100 ℃, carries out draining, cooling naturally,
⑶ broken processing: shrend quenched is transferred to the broken processing of product place through the cooled naturally iron alloy block of draining in the step, carries out extremely desired granularity specification of hand breaking with hammer, and screening and packing gets final product again.
2. efficient ferroalloy processing breaking method according to claim 1; It is characterized in that: in " shrend quenching " step; The quenching that fills the red heat iron alloy block is contained the iron container placement in top, water quenching pool bottom; The red heat iron alloy block of water pipe shower nozzle in the Sheng iron container that quenches carries out fierceness and waters water-quenching; Controlling the cool time of watering is 20s ~ 720s; Naturally cooling after when the iron alloy block temperature is reduced to 500 ℃ ~ 100 ℃, carrying out draining; Said draining is that the water body in the iron container is contained in the separation quenching, can promote Sheng iron container one side of quenching and toppling over the separation water body.
3. efficient ferroalloy processing breaking method according to claim 1; It is characterized in that: the interior diapire that the iron container is contained in used quenching is provided with the pillar of supporting red heat iron alloy block, and the interior diapire of containing the iron container or its sidewall or its diapire and sidewall are provided with the draining hole quenching.
4. efficient ferroalloy processing breaking method according to claim 1, it is characterized in that: the thickness of the iron alloy block that control is cast is 20mm ~ 200mm.
5. efficient ferroalloy processing breaking method according to claim 1 is characterized in that: in broken procedure of processing, can adopt disintegrating machine to carry out crushing operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110163319A CN102303121A (en) | 2011-06-17 | 2011-06-17 | Efficient and low-consumption method for machining and crushing ferroalloy |
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| CN201110163319A CN102303121A (en) | 2011-06-17 | 2011-06-17 | Efficient and low-consumption method for machining and crushing ferroalloy |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103071802A (en) * | 2013-01-17 | 2013-05-01 | 辽宁科技大学 | Method and device for producing ferroalloy by mechanical crushing |
| CN110553882A (en) * | 2018-06-01 | 2019-12-10 | 深圳市裕展精密科技有限公司 | Sample separation method |
| CN111286566A (en) * | 2020-02-21 | 2020-06-16 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for improving crushing performance of FeV80 alloy |
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| CN1039372A (en) * | 1988-04-21 | 1990-02-07 | 施·施塔斯卡铁冶金学院 | The breaking method of ferroalloy |
| JPH0641617A (en) * | 1992-07-21 | 1994-02-15 | Mitsubishi Materials Corp | Production of fe-n or fe-si-n soft magnetic powder having high saturation magnetic flux density |
| CN101570819A (en) * | 2009-06-18 | 2009-11-04 | 柳州金茂机械有限公司 | Heating processing technology for wear-resistant cutting board |
| CN101649406A (en) * | 2009-08-31 | 2010-02-17 | 郑州明泰实业有限公司 | High-strength aluminium alloy plate and production method thereof |
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2011
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Patent Citations (4)
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| CN1039372A (en) * | 1988-04-21 | 1990-02-07 | 施·施塔斯卡铁冶金学院 | The breaking method of ferroalloy |
| JPH0641617A (en) * | 1992-07-21 | 1994-02-15 | Mitsubishi Materials Corp | Production of fe-n or fe-si-n soft magnetic powder having high saturation magnetic flux density |
| CN101570819A (en) * | 2009-06-18 | 2009-11-04 | 柳州金茂机械有限公司 | Heating processing technology for wear-resistant cutting board |
| CN101649406A (en) * | 2009-08-31 | 2010-02-17 | 郑州明泰实业有限公司 | High-strength aluminium alloy plate and production method thereof |
Non-Patent Citations (2)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103071802A (en) * | 2013-01-17 | 2013-05-01 | 辽宁科技大学 | Method and device for producing ferroalloy by mechanical crushing |
| CN110553882A (en) * | 2018-06-01 | 2019-12-10 | 深圳市裕展精密科技有限公司 | Sample separation method |
| CN111286566A (en) * | 2020-02-21 | 2020-06-16 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for improving crushing performance of FeV80 alloy |
| CN111286566B (en) * | 2020-02-21 | 2021-07-06 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for improving crushing performance of FeV80 alloy |
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Application publication date: 20120104 |