CN101890501A - Processing method for crushing slag - Google Patents
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Abstract
The invention discloses a processing method for crushing slag, comprising the following steps: conducting multi-level crushing, carrying out magnetic separation and grinding. The invention solves the problem that slag is hard to process and provides a reasonable preparation method for slag micro powder. In the method, after the slag is crushed for many times, separated magnetically and grinded, over 99.2% magnetic iron and residues contained in the slag are separated; the obtained products, such as slag steel, steel shots and iron ore concentrate, can be used in iron and steel smelting; and the obtained slag micro powder with the 0.075mm weight of screen residue less than 1% and the specific surface area more than 580m<2>/kg can be applied to cement production or replace part of cement to be used as an admixture of concrete, thereby realizing absolute and effective utilization of slag and accelerating comprehensive utilization level of the solid waste of the slag.
Description
Technical field
The present invention relates to the Machining Technology field, relate in particular to a kind of broken processing method of slag, be used for sorting, preparation slag (little) powder.
Background technology
Slag is the byproduct of steel industry, along with the development of steel industry, all has every year a lot of slags to produce, and its heap is abandoned and not only taken a large amount of soils, pollutes surrounding environment, also causes the waste of resource, and is very unfavorable to environmental protection and recycling economy.
The structure of slag is special, is the combination of slag and iron (steel), and the piece that has mainly is a slag, and the piece that has mainly is an iron; Have plenty of cinder ladle iron, have plenty of the iron cinder inclusion.Existing jaw crusher coarse crushing, in broken slag, gyratory crusher slag in small, broken bits, all very the difficulty, disintegrating machine is easy to by the bulk iron loss in the slag bad, this just causes effective comprehensive utilization ratio of China's slag very low.Effective comprehensive utilization of slag is meant in steel industry recycling or make new product as raw material in other industries such as cement, rather than directly slag is used as backfill.Wherein slag is used at cement industry, and the granularity to slag micro powder has requirement except that composition being had the requirement also, generally requires two indexs of 0.075mm screen over-size and specific area.Because the value of slag micro powder is limited, thus require to use rational technology to prepare slag micro powder with the consumption low cost of trying one's best, so good slag micro powder preparation method is most important to Multipurpose Utilization of Steel Slag.
Summary of the invention
The broken processing method that the purpose of this invention is to provide a kind of slag solves the unmanageable problem of slag, and the reasonable preparation method of slag micro powder is provided.This method with slag through broken, magnetic separation repeatedly with grind, Armco magnetic iron is wherein separated more than 99.2% with slag, products such as the smart powder of the slag steel that obtains, steel grit, iron can use in smelting iron and steel, obtain the 0.075mm screen over-size less than 1%, specific area is greater than 580m
2The slag micro powder of/kg can be used for manufacture of cement or instead of part cement is made concrete admixture, thereby a hundred per cent that realizes slag is effectively utilized the development of promotion solid waste Multipurpose Utilization of Steel Slag level.
The objective of the invention is to be achieved through the following technical solutions:
A kind of broken processing method of slag comprises:
The broken bulk slag of weight is used in A, coarse crushing, is crushed to below the granularity 400mm, obtains slag after the coarse crushing;
B, one-level magnetic separation magneticly elect the high one-level slag iron of the iron content that can magneticly elect in the slag after the weight coarse crushing, and one-level slag iron is separated, and obtain the one-level slag;
C, in broken, with broken in the one-level slag, be crushed to below the granularity 80mm broken back slag in obtaining with vibration jaw crusher;
D, secondary magnetic separation, the high secondary slag iron of the iron content that can magneticly elect in magneticly electing in the slag of broken back, and secondary slag iron separated, obtain the secondary slag;
E, in small, broken bits, with flexible transmission gyratory crusher that the secondary slag is in small, broken bits, be crushed to below the granularity 6mm, obtain back in small, broken bits slag;
F, three grades of magnetic separation magneticly elect the three grades of high slag iron of the iron content that can magneticly elect in the slag of back in small, broken bits, and three grades of slag iron are separated, and obtain the grade III steel slag;
G, corase grind are broken, and be with ball mill that grade III steel slag corase grind is broken, obtains roughly grinding broken back slag;
H, level Four magnetic separation magneticly elect the high level Four slag iron of the iron content that can magneticly elect in the slag of the broken back of corase grind, and level Four slag iron is separated, and obtain steel-making slag powder.
Described method also comprises:
I, auxiliary grinding grind three grades of slag iron or level Four slag iron with ball mill, obtain the auxiliary back slag that grinds;
J, auxiliary magnetic separation magneticly elect the auxiliary high Pyatyi slag iron of the iron content that can magneticly elect that grinds in the slag of back, and Pyatyi slag iron is separated, and obtain steel-making slag powder.
Described method also comprises:
K, sieving and grading screen Pyatyi slag iron, obtain the smart powder of steel grit and iron.
Described method also comprises:
L, drying are carried out drying with steel-making slag powder;
M, fine grinding grind dried steel-making slag powder with vibromill, obtain slag micro powder.
Described method also comprises: one-level slag iron is returned coarse crushing, use the broken bulk slag of weight, be crushed to below the granularity 400mm, obtain slag after the coarse crushing.
As seen from the above technical solution provided by the invention, the broken processing method of slag of the present invention solves the reasonable preparation method that the unmanageable problem of slag provides slag micro powder.This method with slag through broken, magnetic separation repeatedly with grind, Armco magnetic iron is wherein separated more than 99.2% with slag, products such as the smart powder of the slag steel that obtains, steel grit, iron can use in smelting iron and steel, obtain the 0.075mm screen over-size less than 1%, specific area is greater than 580m
2The slag micro powder of/kg can be used for manufacture of cement or instead of part cement is made concrete admixture, thereby a hundred per cent that realizes slag is effectively utilized the development of promotion solid waste Multipurpose Utilization of Steel Slag level.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite of not paying creative work, can also obtain other accompanying drawings according to these accompanying drawings.
The process chart of the broken processing method of the slag that Fig. 1 provides for the embodiment of the invention.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on embodiments of the invention, those of ordinary skills belong to protection scope of the present invention not making the every other embodiment that is obtained under the creative work prerequisite.
Below in conjunction with accompanying drawing the embodiment of the invention is described in further detail.
As shown in Figure 1, a kind of broken processing method of slag, detailed process is:
The broken bulk slag of weight is used in steps A, coarse crushing, is crushed to below the granularity 400mm, obtains slag after the coarse crushing;
Described weight is to sling quality 5000 to the square iron block of 8000kg with hoist engine or beam cranes, when it when eminence falls, can break slag, slag is wherein separated with steel, perhaps make slag crushing.Because slag bag weight is very big, need and be aided with in the equipments such as beam cranes, crane, excavator, loading machine one or more with lifting electromagnet and be deposited in the below of weight.Break broken slag with weight, the bulk steel is separated, make slag crushing simultaneously below 400mm.With lifting electromagnet or other equipment, former slag iron is picked out, the grade of former slag iron reaches more than 90, can directly use in smelting.The slag granularity enters step B less than 400mm after other coarse crushings.The elevating capacity of described lifting electromagnet generally should be greater than 3 tons.
Step B, one-level magnetic separation magneticly elect the high one-level slag iron of the iron content that can magneticly elect in the slag after the weight coarse crushing, and one-level slag iron is separated, and obtain the one-level slag; Owing to may contain lumpiness at 100 millimeters in the slag after the coarse crushing; or even three or four hundred millimeters steel; enter follow-up vibration jaw crusher if contain the slag of such bulk steel; though can not cause disintegrating machine to damage; but can be stuck in the crusher chamber of disintegrating machine; broken work is interrupted, needed to shut down and handle, thus the continuity that influence is produced.Therefore, the slag that preparation need be entered vibration jaw crusher carries out the one-level magnetic separation, separates with the steel scoria magnetic separation that will contain relatively large steel.This not easy-to-use any crusher in crushing of slag that contains relatively large steel can be returned the weight manufacturing procedure, continue to handle, so that its slag, steel separate under the weight effect.
C, in broken, with broken in the one-level slag, be crushed to below the granularity 80mm broken back slag in obtaining with vibration jaw crusher;
Because inevitable the existence piles up in the transportation of slag equipment such as belt conveyer in production line, so the one-level magnetic separation can not guarantee the slag that absolutely will contain the bulk steel and separate, so unavoidably there is the slag that contains the bulk steel to enter in the follow-up crushing mechanism.Therefore, need to adopt disintegrating machine, be damaged to avoid disintegrating machine with flexiblesystem.Vibration jaw crusher is a kind of disintegrating machine of flexiblesystem, can not enter because of the slag that contains the bulk steel to be damaged.The present invention adopts vibration jaw crusher with broken in the one-level slag, is crushed to below the granularity 80mm.When the slag that contains the bulk steel enters crusher chamber, only can be stuck in the crusher chamber, jaw can not be moved, and interruption of work.At this moment, only need to shut down, bind slag, can continue start work after hanging out with instruments such as steel wire ropes.
Described vibration jaw crusher, it is a kind of jaw crusher that power is provided by vibrator, the quadric chain that it does not adopt other jaw crushers and is had, it is to force by the centrifugal inertial force that vibrator produces to turn round that axle produces that a torsional deflection realizes moving back and forth and broken work, thereby is a kind of flexiblesystem.It is mixed with bulk iron in can the invar slag and enters crusher chamber and be damaged, can self-protection.In the practical application, if there is not vibration jaw crusher, can replace with general jaw crusher, but can break down because in the slag relatively large degree steel is arranged or damage, the operation ratio of production line can descend, production cost can corresponding increase.
D, secondary magnetic separation, the high secondary slag iron of the iron content that can magneticly elect in magneticly electing in the slag of broken back, and secondary slag iron separated, obtain the secondary slag; The grade of secondary slag iron reaches more than 70, can directly use in smelting.
E, in small, broken bits, with flexible transmission gyratory crusher that the secondary slag is in small, broken bits, be crushed to below the granularity 6mm, obtain back in small, broken bits slag;
The inevitable existence piles up in the transportation of same because slag equipment such as belt conveyer in production line, so unavoidably there is the slag that contains relatively large steel to enter disintegrating machine.Therefore, fine crushing process also needs to adopt the disintegrating machine with flexiblesystem.The present invention adopts flexible transmission gyratory crusher secondary slag in small, broken bits slag, and it can be opened a way slag crushing to granularity 6mm.When the fritter steel entered slightly, it can pound it flat, and discharged crusher chamber, did not influence the continuity of work.When having relatively large steel to enter can not to pound flat eliminating, it can not be damaged, and only mantle is blocked and interruption of work, shuts down and can continue start work after handling.
Described flexible transmission gyratory crusher, it is a kind of gyratory crusher that operation power is provided by the rotation of transmission system drive vibrator, it does not adopt the tradition and the actuating unit of bevel gear tradition, excentric sleeve and the axis of cone of other gyratory crushers, its legacy system is a kind of joint arrangement, can realize flexible transmission.The movement locus of its mantle is unfixed, uncertain, thereby has in crusher chamber when can not broken iron and steel entering, and can not be damaged.
F, three grades of magnetic separation magneticly elect the three grades of high slag iron of the iron content that can magneticly elect in the slag of back in small, broken bits, and three grades of slag iron are separated, and obtain the grade III steel slag;
G, corase grind are broken, and be with ball mill that grade III steel slag corase grind is broken, obtains roughly grinding broken back slag;
Because the grade III steel slag is below the 6mm, but wherein also has the tiny steel particles of minute quantity.Grind processing after 40 minutes, the degree minimizing speed greater than the particle of 0.5mm wherein becomes very slow.These particles greater than 0.5mm are exactly the steel slag particle that contains tiny steel particles, are level Four slag iron, if continue to grind processing, then the working (machining) efficiency to level Four slag iron is extremely low, therefore need to use magnetic separation that it is separated.So, to roughly grind the broken time to be controlled at 40～60 minutes, time expand again, is to avoid the inefficient work of grinding machine.
H, level Four magnetic separation magneticly elect the high level Four slag iron of the iron content that can magneticly elect in the slag of the broken back of corase grind, and level Four slag iron is separated, and obtain steel-making slag powder.
Above-mentioned method in the process, because three grades of slag iron have only about 40, can not directly reclaim use, grinds operation so need enter branch road, separates, thereby reaches the purification purpose to realize slag, steel; Simultaneously, the level Four slag iron of level Four magnetic separation also need further grind processing, so introduce aided process:
I, auxiliary grinding grind three grades of slag iron or level Four slag iron with ball mill, obtain the auxiliary back slag that grinds; 5 to 10 minutes process times, steel in three grades of slag iron of slag or the level Four slag iron is reached with the slag overwhelming majority separate.
J, auxiliary magnetic separation magneticly elect the auxiliary high Pyatyi slag iron of the iron content that can magneticly elect that grinds in the slag of back, and Pyatyi slag iron is separated, and obtain steel-making slag powder.
Method of the present invention also comprises simultaneously:
K, sieving and grading screen Pyatyi slag iron, obtain the smart powder of steel grit and iron.Use the vibratory sieve classification, use the sieve of sieve aperture as 1mm, the part greater than 1mm that sub-elects is steel grit, be the smart powder of iron less than the part of 1mm.This screening process, be not only into the smart powder of iron that high-grade steel grit and relative grade is lower from, and be that classification goes out varigrained product, to satisfy their different application requirements in smelting.Wherein steel grit can be as the cooling agent of pneumatic steelmaking, and the smart powder of iron is to be used as raw materials for sintering.
Mention in the said process, steel-making slag powder also can continue processing:
L, drying are carried out drying with steel-making slag powder;
If water content is higher, agglomeration taking place easily in the steel-making slag powder grinding machine then in the steel-making slag powder, influence the flowability and the grindability of steel-making slag powder, therefore needs to carry out drying before fine grinding.Steel-making slag powder with rotating drum type drying machine or push-plate type drier, is reduced moisture wherein, make its water content mass percent less than 0.1%.
M, fine grinding grind dried steel-making slag powder with vibromill, obtain slag micro powder.
The particle of steel-making slag powder is thinner, and particle mean size is between 0.09～0.15mm, if continue to use general ball mill processing, then working (machining) efficiency will compare lowly, so should adopt vibrating mill.Vibrating mill can be used for the higher material of workhardness, and its operating frequency height, active force and motion are strong, energy consumption is low, so be suitable for the fine grinding work of slag.Because the configuration of the particle diameter of the working media steel ball of vibromill is more reasonable, it to grind efficient higher, so processed 25～30 minutes, can obtain the 0.075mm screen over-size less than 1%, specific area is greater than 580m
2The slag micro powder of/kg.After this; if proceed to grind processing, then the minimizing of the screen over-size of 0.075mm is also very slow with specific area increase very slow, slag micro powder, and it is lower that operating efficiency becomes; so generally after these two indexs reach requirement, do not need to increase again process time, to reduce production costs.
This method is by above action, reclaim the Armco magnetic iron more than 99.2% in the slag, wherein one-level slag iron and secondary slag iron can be used as steel scrap and are used for electric-arc furnace steelmaking, and steel grit can be used for the pneumatic steelmaking cooling agent, the smart powder of iron can both directly use in the interior circulation of steel industry as raw materials for sintering; Prepare the slag micro powder that the 0.075mm screen over-size is few, specific area is big simultaneously, can directly in cement, concrete etc., use.This method can satisfy the complete processing sorting of slag, and the slag micro powder of preparation high added value, thereby promotes a hundred per cent comprehensive utilization of slag.
In addition, described magnetic separation at different levels according to the different phase granular size of operation with require magnetic field intensity, are selected different magnetic separation instruments, and as lifting electromagnet, magnet drum, magnetic separator etc., they are the kind difference not only, and also difference of magnetic field intensity.
It is the magnet drum of 1000 Gausses (Gs) that tube Surface field intensity is used in described one-level magnetic separation, also can use the self-tipping type tramp iron separator.
It is the magnet drum of 1200 Gausses (GS) that described secondary magnetic separation is used tube Surface field intensity.
It is the magnet drum of 2500 Gausses (Gs) that tube Surface field intensity is used in described three grades of magnetic separation.
It is the dry-type magnetic extractor of 0.7 tesla (T) that tube surface induction intensity is used in described level Four magnetic separation.
It is the dry-type magnetic extractor of 0.7 tesla (T) that tube surface induction intensity is used in described auxiliary magnetic separation.
Described grinding according to the different sizes of different needs and feed, selected the grinding machine of variety classes and model in operation.
Described assisting grinds the use ball mill, and working media is a steel ball, and sphere diameter is respectively 40mm, 50mm, 70mm, and the mass ratio of three kinds of steel balls is 40%, 35%, 25%.
The broken use cement mill of described corase grind adopts two chamber structures, and promptly the cylindrical shell of grinding machine is divided into two parts, and steel ball is used for corase grind, working media in one storehouse, front, and one storehouse, back is fine grinding, and working media uses the steel section, to strengthen the grinding property of grinding machine.
Two storehouse intersections adopt the double-layered isolating plate that has screening plant, and partition panel prevents that working media from flowing out mutually, and screening plant is that the material in the corase grind storehouse is carried out sieve classification, makes qualified particle enter the fine grinding storehouse and carries out fine grinding.
Steel ball sphere diameter in the corase grind storehouse is respectively 40mm, 50mm, 70mm, and the mass ratio of three kinds of steel balls is 45%, 35%, 20%.
In addition, the manufacturing procedure of this method is in small, broken bits and three grades of magnetic separation of step F to step e, 97% above Armco magnetic iron in the slag can be separated.If step e product granularity in small, broken bits is greater than 6mm, the iron grade of three grades of slag iron that then obtain will be lower than 40, and the amount of three grades of slag iron can increase.Therefore, step e is in small, broken bits to obtain the product less than 6mm, can reduce the auxiliary workload that grinds of branch road step I, thereby under the steel situation that reclaims same amount, realizes energy-saving and cost-reducingly, reduces production costs simultaneously.
In addition, in actual applications, in small, broken bits with flexible transmission gyratory crusher in step e, fine fraction content is higher in the product that obtains, the particle mean size of product is little, can improve the follow-up operating efficiency that grinds operation, thereby improves the output of grinding machine and the production cost that reduction grinds work.
By use in weight coarse crushing, the vibration jaw crusher broken, flexible transmission gyratory crusher in small, broken bits, grind the difficult problem that can solve slag processing with magnetic separation well, reclaim most of iron and steel in the slag; By grinding, magnetic separation, drying, grinding and to prepare technical performance slag micro powder preferably efficiently again.Processing sorting of this slag and slag micro powder preparation method for effective utilization of this solid waste of slag provides condition, thereby promote the development of slag comprehensive utilization level, for recycling economy and scientific development are contributed.
In addition, the coarse crushing of this method, in broken, in small, broken bits, grind the processing difficult problem that the part operation can also solve other metallurgical slags such as copper ashes, nickel slag.
The above; only for the preferable specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (5)
1. the broken processing method of a slag is characterized in that, comprising:
The broken bulk slag of weight is used in A, coarse crushing, is crushed to below the granularity 400mm, obtains slag after the coarse crushing;
B, one-level magnetic separation magneticly elect the high one-level slag iron of the iron content that can magneticly elect in the slag after the weight coarse crushing, and one-level slag iron is separated, and obtain the one-level slag;
C, in broken, with broken in the one-level slag, be crushed to below the granularity 80mm broken back slag in obtaining with vibration jaw crusher;
D, secondary magnetic separation, the high secondary slag iron of the iron content that can magneticly elect in magneticly electing in the slag of broken back, and secondary slag iron separated, obtain the secondary slag;
E, in small, broken bits, with flexible transmission gyratory crusher that the secondary slag is in small, broken bits, be crushed to below the granularity 6mm, obtain back in small, broken bits slag;
F, three grades of magnetic separation magneticly elect the three grades of high slag iron of the iron content that can magneticly elect in the slag of back in small, broken bits, and three grades of slag iron are separated, and obtain the grade III steel slag;
G, corase grind are broken, and be with ball mill that grade III steel slag corase grind is broken, obtains roughly grinding broken back slag;
H, level Four magnetic separation magneticly elect the high level Four slag iron of the iron content that can magneticly elect in the slag of the broken back of corase grind, and level Four slag iron is separated, and obtain steel-making slag powder.
2. the broken processing method of slag according to claim 1 is characterized in that, described method also comprises:
I, auxiliary grinding grind three grades of slag iron or level Four slag iron with ball mill, obtain the auxiliary back slag that grinds;
J, auxiliary magnetic separation magneticly elect the auxiliary high Pyatyi slag iron of the iron content that can magneticly elect that grinds in the slag of back, and Pyatyi slag iron is separated, and obtain steel-making slag powder.
3. the broken processing method of slag according to claim 2 is characterized in that, described method also comprises:
K, sieving and grading screen Pyatyi slag iron, obtain the smart powder of steel grit and iron.
4. according to the broken processing method of claim 1,2 or 3 described slags, it is characterized in that described method also comprises:
L, drying are carried out drying with steel-making slag powder;
M, fine grinding grind dried steel-making slag powder with vibromill, obtain slag micro powder.
5. according to the broken processing method of claim 1,2 or 3 described slags, it is characterized in that described method also comprises: one-level slag iron is returned coarse crushing, use the broken bulk slag of weight, be crushed to below the granularity 400mm, obtain slag after the coarse crushing.
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101342512A (en) * | 2007-07-12 | 2009-01-14 | 南京板桥钢渣有限责任公司 | Steel scoria processing method |
-
2010
- 2010-07-05 CN CN2010102254095A patent/CN101890501A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101342512A (en) * | 2007-07-12 | 2009-01-14 | 南京板桥钢渣有限责任公司 | Steel scoria processing method |
Non-Patent Citations (3)
| Title |
|---|
| 《江苏冶金》 19971231 赵军 中小钢厂钢渣加工工艺及综合利用初探 42-44 1-5 , 第3期 2 * |
| 《湖南有色金属》 20000731 陈伟 转炉钢渣的处理和利用 36-38 1-5 第16卷, 第4期 2 * |
| 《炼钢》 19911231 刘树振 炼钢炉渣的处理方法. 50-60 1-5 , 2 * |
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