CN105944811A - Dry method purification process and device of slag steel - Google Patents
Dry method purification process and device of slag steel Download PDFInfo
- Publication number
- CN105944811A CN105944811A CN201610259821.6A CN201610259821A CN105944811A CN 105944811 A CN105944811 A CN 105944811A CN 201610259821 A CN201610259821 A CN 201610259821A CN 105944811 A CN105944811 A CN 105944811A
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- Prior art keywords
- slag
- dry method
- steel
- purifying process
- method purifying
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a dry method purification process and device of slag steel, and belongs to the field of metallurgy. The method includes the steps: S10, crushing the slag steel block; S20, filtering out the slag powder from the disintegrating slag steel and entering warehouse; S30, distinguishing the dust-free disintegrating slag steel by magnetic separation; and S40, entering warehouse. The method can avoid the magnetic spike phenomenon, has no exo-dust, so that the work environment cannot be influenced, and has no waste water and no sludge, so that the environmental burden cannot be caused.
Description
Technical field
The present invention relates to a kind of slag steel dry method purifying process, belong to field of metallurgy.
Background technology
Slag is not expecting in steelmaking process, but wherein contains substantial amounts of metallic iron, as directly given up
Outcast the soldier and cause the hugest loss.In existing actual production, it is common to use two kinds of purification works
Skill, one is wet method purifying process, and one is dry method purifying process.Wet method purifying process is applicable to contain
The slag of iron 20%-30%, after being mixed with water by slag through rod mill pulverize, impurity with
Sludge settling, ferrum is put in storage after collecting, but containing a large amount of metals in this kind of process spent water, can be caused
Severe contamination.Though dry method purifying process can avoid sludge pollution, but is only applicable to iron-holder 2%
Following slag.Meanwhile, above two purifying process owing to being mixed with a large amount of powder in slag,
Magnetic fringe phenomenon is there will be so that efficiency of magnetic separation declines when magnetic separation.Therefore, for current existing skill
Drawbacks described above present in art, is necessary to study in fact, lacks present in solution prior art
Fall into, it is provided that a kind of slag steel dry method purifying process.
Summary of the invention
For solving the problems referred to above, it is an object of the invention to provide a kind of slag steel dry method purifying process
And equipment.
For achieving the above object, the technical scheme is that
A kind of slag steel dry method purifying process, step is:
S10-slag block crushes gumming；
The S20-broken slag further gumming of block；
The dustless broken slag block magnetic separation of S30-.
By above-mentioned processing step, particularly S20, in advance steel-making slag powder is leached, it is to avoid follow-up
Operation produces magnetic fringe phenomenon.
Further, S10 crushes slag block by rod mill.
Further, steel-making slag powder in broken slag block is leached by S10 by cleaner unit.
Further, rod mill is connected by gas channel with cleaner unit.
Further, negative pressure is maintained in described rod mill.It is so designed that and can avoid shattering process
Middle dust escapes, and affects working environment.
Further, in S20, disintegrating slag bloom is distinguished broken slag block by powder concentrator and mixes it
In steel-making slag powder.Avoid being mixed with steel-making slag powder further in broken slag block, improve production efficiency.
Further, powder concentrator is connected by conveyer belt with rod mill.
Further, S30 distinguishes high-grade slag steel and low-grade slag steel and tailings by magnetic drum.
Further, low-grade slag steel and tailings are distinguished by magnetic separator, and low-grade slag steel reclaims
It is refitted in S10.It is so designed that and can avoid waste.
A kind of equipment for any of the above-described slag steel dry method purifying process, is provided with rod mill, institute
Stating rod mill to be connected with cleaner unit airflow line, rod mill is connected with powder concentrator conveyer belt, selects powder
Machine is connected with cleaner unit, and powder concentrator is connected with magnetic separator conveyer belt, magnetic separator and rod mill transmission
Band connects, and magnetic separator is connected with vibrosieve conveyer belt.
Compared with prior art, the method have the advantages that what the application used sets
Meter can avoid the generation of magnetic fringe phenomenon, and dust does not escapes simultaneously, does not interferes with working environment,
There is no sewage, mud, environment will not be caused burden yet.
Accompanying drawing explanation
Fig. 1 is present invention process flow chart；
Fig. 2 is present device connection figure.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with
Drawings and Examples, are further elaborated to the present invention.Should be appreciated that this place is retouched
The specific embodiment stated only in order to explain the present invention, is not intended to limit the present invention.
On the contrary, the present invention contains any spirit and scope in the present invention being defined by the claims
On replacement, amendment, equivalent method and the scheme made.Further, in order to make the public to this
Bright having a better understanding, during the details to the present invention describes below, detailed to describe some special
Fixed detail section.The description not having these detail sections for a person skilled in the art also may be used
To understand the present invention completely.
The equipment of a kind of slag steel dry method purifying process, is provided with rod mill, described rod mill with remove
Dirt device airflow line connects, and rod mill is connected with powder concentrator conveyer belt, and powder concentrator is with cleaner unit even
Connecing, powder concentrator is connected with magnetic separator conveyer belt, and magnetic separator is connected with rod mill conveyer belt, magnetic separation
Machine is connected with vibrosieve conveyer belt.
Embodiment 1
The slag of average 15% iron content is pulverized in entering rod mill.Rod mill removes with air box impulse
Dirt device is connected with air box pulse dust remover by gas channel, and is provided with blower fan.Blower fan can
Guide the dust in rod mill to enter air box pulse dust remover inner filtration by airflow line, leach
Steel-making slag powder.Broken slag block after rod mill is pulverized, is delivered to V-type by conveyer belt and selects powder
Machine.V-type powder concentrator is further separated out mixing the steel-making slag powder in broken slag block, again by
Gas channel enters air box pulse dust remover, leaches steel-making slag powder therein.So far steel-making slag powder is the most complete
Portion leaches, and its diameter is less than 0.3mm.In V-type powder concentrator, remaining broken slag block is by transmitting
Band is delivered to rotary type magnetic drum.During transmitting, shakeout year old slag block by conveyer belt vibration,
Make its thickness uniform, it is simple to follow-up magnetic separation.The rotary type magnetic drum absorption iron-holder height more than 30%
It is sent to high-grade slag steel vibrosieve after grade slag steel, is more than by shaker vibration sieve diameter
The slag steel particles of 6mm and the diameter slag steel particles less than 6mm.Iron-holder less than 30% low
Grade slag steel is owing to its gravity being subject to is more than its magnetic adsorptive power being subject to, it is impossible to be rotated formula
Magnetic drum adsorbs, and is together transferred into permanent magnetism great wheel magnetic separator magnetic separation with nonferrous tailings.Low product
Position slag steel is adsorbed to conveyer belt by permanent magnetism great wheel magnetic separator, sends back rod mill and again pulverizes, no
The tailings of iron content cannot be adsorbed by magnetic separator, is transferred into the screening of tailings vibrosieve, is divided into diameter
Steel-slag Sand less than 3mm and the diameter slag aggregate more than 3mm.
Embodiment 2
It is, with embodiment 1 difference, the slag that its purification object is average 20% iron content, rotates
High-grade its iron content of slag steel selected by formula magnetic drum is more than 35%, and technical process is identical.
Embodiment 3
It is, with embodiment 1 difference, the slag that its purification object is average 25% iron content, rotates
High-grade its iron content of slag steel selected by formula magnetic drum is more than 40%, and technical process is identical.
Embodiment 4
It is, with embodiment 1 difference, the slag that its purification object is average 30% iron content, rotates
High-grade its iron content of slag steel selected by formula magnetic drum is more than 45%, and technical process is identical.
Embodiment 5
It is, with embodiment 1 difference, the slag that its purification object is average 35% iron content, rotates
High-grade its iron content of slag steel selected by formula magnetic drum is more than 50%, and technical process is identical.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention,
All any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention,
Should be included within the scope of the present invention.
Claims (10)
1. a slag steel dry method purifying process, it is characterised in that step is:
S10-slag block crushes gumming；
The S20-broken slag further gumming of block；
The dustless broken slag block magnetic separation of S30-.
2. slag steel dry method purifying process as claimed in claim 1, it is characterised in that pass through rod mill in S10
Broken slag block.
3. slag steel dry method purifying process as claimed in claim 2, it is characterised in that pass through cleaner unit in S10
Steel-making slag powder in broken slag block is leached.
4. slag steel dry method purifying process as claimed in claim 3, it is characterised in that rod mill leads to cleaner unit
Cross gas channel to connect.
5. slag steel dry method purifying process as claimed in claim 4, it is characterised in that maintain in described rod mill
Negative pressure.
6. slag steel dry method purifying process as claimed in claim 1, it is characterised in that in S20, disintegrating slag bloom
Distinguish broken slag block by powder concentrator and mix steel-making slag powder therein.
7. slag steel dry method purifying process as claimed in claim 6, it is characterised in that powder concentrator leads to rod mill
Cross conveyer belt to connect.
8. slag steel dry method purifying process as claimed in claim 1, it is characterised in that by magnetic drum district in S30
Divide high-grade slag steel and low-grade slag steel and tailings.
9. slag steel dry method purifying process as claimed in claim 8, it is characterised in that low-grade slag steel and tailings
Being distinguished by magnetic separator, low-grade slag steel reclaims and is refitted in S10.
10. the equipment for the arbitrary slag steel dry method purifying process described in claim 1-9, it is characterised in that
Being provided with rod mill, described rod mill is connected with cleaner unit airflow line, and rod mill is connected with powder concentrator conveyer belt,
Powder concentrator is connected with cleaner unit, and powder concentrator is connected with magnetic separator conveyer belt, and magnetic separator is connected with rod mill conveyer belt,
Magnetic separator is connected with vibrosieve conveyer belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610259821.6A CN105944811A (en) | 2016-04-25 | 2016-04-25 | Dry method purification process and device of slag steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610259821.6A CN105944811A (en) | 2016-04-25 | 2016-04-25 | Dry method purification process and device of slag steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105944811A true CN105944811A (en) | 2016-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610259821.6A Pending CN105944811A (en) | 2016-04-25 | 2016-04-25 | Dry method purification process and device of slag steel |
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| Country | Link |
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| CN (1) | CN105944811A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105833991A (en) * | 2016-04-25 | 2016-08-10 | 浙江哈斯科节能技术有限公司 | Slag steel dry magnetic separation purifying technology and equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3754713A (en) * | 1970-03-28 | 1973-08-28 | Bayer Ag | Separation of magnetizable particles |
| CN1282635A (en) * | 2000-09-08 | 2001-02-07 | 武汉冶金渣环保工程有限责任公司 | Comprehensive utilization of steel slags |
| CN1390795A (en) * | 2002-06-19 | 2003-01-15 | 北京高路通科技发展有限公司 | Process for treating steel slag |
| CN1492058A (en) * | 2003-08-28 | 2004-04-28 | 庞慧鑫 | Process for treating steel slag by using self grinding technology |
| CN1924025A (en) * | 2005-08-31 | 2007-03-07 | 安阳钢铁集团有限责任公司 | Process for treating slag steel |
| CN101391457A (en) * | 2007-09-18 | 2009-03-25 | 中冶集团武汉冶建技术研究有限公司 | Low grade tailing steel slag re-use method and slurry magnetic separation equipment |
| CN105833991A (en) * | 2016-04-25 | 2016-08-10 | 浙江哈斯科节能技术有限公司 | Slag steel dry magnetic separation purifying technology and equipment |
-
2016
- 2016-04-25 CN CN201610259821.6A patent/CN105944811A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3754713A (en) * | 1970-03-28 | 1973-08-28 | Bayer Ag | Separation of magnetizable particles |
| CN1282635A (en) * | 2000-09-08 | 2001-02-07 | 武汉冶金渣环保工程有限责任公司 | Comprehensive utilization of steel slags |
| CN1390795A (en) * | 2002-06-19 | 2003-01-15 | 北京高路通科技发展有限公司 | Process for treating steel slag |
| CN1492058A (en) * | 2003-08-28 | 2004-04-28 | 庞慧鑫 | Process for treating steel slag by using self grinding technology |
| CN1924025A (en) * | 2005-08-31 | 2007-03-07 | 安阳钢铁集团有限责任公司 | Process for treating slag steel |
| CN101391457A (en) * | 2007-09-18 | 2009-03-25 | 中冶集团武汉冶建技术研究有限公司 | Low grade tailing steel slag re-use method and slurry magnetic separation equipment |
| CN105833991A (en) * | 2016-04-25 | 2016-08-10 | 浙江哈斯科节能技术有限公司 | Slag steel dry magnetic separation purifying technology and equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105833991A (en) * | 2016-04-25 | 2016-08-10 | 浙江哈斯科节能技术有限公司 | Slag steel dry magnetic separation purifying technology and equipment |
| CN105833991B (en) * | 2016-04-25 | 2018-11-30 | 浙江哈斯科节能技术有限公司 | Slag steel dry magnetic separation purifying process and equipment |
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Application publication date: 20160921 |
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