CN114589189A - Process for improving Italy Tenuon furnace metal purity degree - Google Patents
Process for improving Italy Tenuon furnace metal purity degree Download PDFInfo
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- CN114589189A CN114589189A CN202210251537.XA CN202210251537A CN114589189A CN 114589189 A CN114589189 A CN 114589189A CN 202210251537 A CN202210251537 A CN 202210251537A CN 114589189 A CN114589189 A CN 114589189A
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- 239000002184 metal Substances 0.000 title claims abstract description 36
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 199
- 239000010959 steel Substances 0.000 claims abstract description 199
- 239000002699 waste material Substances 0.000 claims abstract description 104
- 239000002893 slag Substances 0.000 claims abstract description 60
- 239000002994 raw material Substances 0.000 claims abstract description 58
- 239000002245 particle Substances 0.000 claims abstract description 52
- 238000012216 screening Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 21
- 235000010627 Phaseolus vulgaris Nutrition 0.000 claims description 17
- 244000046052 Phaseolus vulgaris Species 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 15
- 238000007885 magnetic separation Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 238000001179 sorption measurement Methods 0.000 claims description 12
- 239000002002 slurry Substances 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 239000012141 concentrate Substances 0.000 claims description 10
- 238000000926 separation method Methods 0.000 claims description 10
- 150000002739 metals Chemical class 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims 2
- 238000000746 purification Methods 0.000 abstract description 13
- 238000000227 grinding Methods 0.000 abstract description 2
- 239000006247 magnetic powder Substances 0.000 description 4
- 244000068988 Glycine max Species 0.000 description 3
- 235000010469 Glycine max Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 235000013527 bean curd Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a process for improving the metal purity of Italian Denun furnace, which comprises the steps of respectively collecting large-particle waste steel raw materials and small-particle waste steel raw materials after screening, conveying the obtained large-particle waste steel raw materials into a slag steel self-grinding machine through a forklift and a belt conveyor, crushing and extruding the waste steel, and separating waste slag and steel on the waste steel. This improve technology of Italy's special nu stove metal purity degree, through setting up slag steel autogenous mill and electro-magnet, can sieve and collect containing magnetic metal in the scrap steel fast, it is more convenient to make special nu stove carry out follow-up purification to steel, efficiency is higher, through setting up wet ball mill, can further process steel, the magnetic that is difficult to get rid of on its surface is isolated simultaneously, the steel precision that makes follow-up reacing is higher, thereby steel surface magnetic is got rid of completely when making the follow-up steel of special nu stove purification, the efficiency that special nu stove carried out processing has been improved.
Description
Technical Field
The invention relates to the technical field of steel purification, in particular to a process for improving the purity degree of Italian Tenuon furnace metal.
Background
The steel is a material with certain shape, size and performance, which is made of steel ingots, steel billets or steel materials through pressure processing. Most of steel processing is pressure processing, which causes plastic deformation of processed steel (billet, ingot, etc.). Steel products are classified into cold working and hot working according to the working temperature, scrap is generated at construction sites and the like, and steel products can be recovered by performing scrap recovery and metal purification work using a tenone furnace in italy.
The existing steel is placed in the Italian Tenno furnace, the purification effect is not obvious enough, and the Italian Tenno furnace has poor purification effect because the waste steel is not recycled and treated finely enough, so that the problem needs to be improved.
Disclosure of Invention
Technical problem to be solved
In view of the deficiencies of the prior art, the present invention provides a process for improving the purity of Italian Tenuon furnace metals to solve the above-mentioned problems.
(II) technical scheme
The invention provides the following technical scheme: a process for increasing the purity level of metal in a tenone italian furnace comprising the steps of:
S1
collecting scrap steel raw materials, screening large-particle scrap steel raw materials and small-particle scrap steel raw materials, and collecting the screened large-particle scrap steel raw materials and small-particle scrap steel raw materials respectively.
S2
And (4) conveying the large-particle waste steel raw material obtained in the step (S1) to a slag steel autogenous mill through a forklift and a belt conveyor, crushing and extruding the waste steel, separating waste slag and steel on the waste steel, and uniformly collecting and placing the crushed large-particle waste steel raw material.
S3
And (4) conveying the small-particle waste steel raw materials obtained in the step (S1) to a slag steel autogenous mill through a forklift and a belt conveyor, crushing and extruding the waste steel, separating waste slag on the waste steel from steel, and uniformly collecting and placing the crushed large-particle waste steel raw materials.
S4
The crushed waste slag obtained in the step S2 and the steel material are turned over by a turning machine, and magnetic adsorption is performed on the upper part of the waste slag by using an electromagnet, so that the magnetic metal contained in the waste slag is collected and recovered.
S5
The crushed waste slag obtained in the step S3 and the steel material are turned over by a turning machine, and magnetic adsorption is performed on the upper part of the waste slag by using an electromagnet, so that the magnetic metal contained in the waste slag is collected and recovered.
S6
And (5) putting the steel materials obtained in the steps S4 and S5 into a wet ball mill for processing to obtain the bean steel.
Preferably, when the wet ball mill processes the steel material in step S6, water needs to be added for multiple times and the added water amount is reduced in sequence, so as to ensure that the wet ball mill operates normally when in operation.
Preferably, in the step S6, when the wet ball mill is used for processing steel, the ore slurry is obtained, the ore slurry is sent to a magnetic separation device for magnetic separation, the concentrate after magnetic separation is dehydrated by a solid-liquid separation device to obtain high-grade iron concentrate, the tailing liquid is dehydrated by a solid-liquid separation device to obtain tailing slurry, and the ore slurry can be purified for the second time.
Preferably, the soy-bean steels obtained in the step S6 are dried in a dryer and uniformly stacked in a tenuon furnace, so that the soy-bean steels can be uniformly dried to avoid water on the surface of the soy-bean steels.
Preferably, the bean curd jelly obtained in the step S6 is placed in a tenon furnace and preheated, the temperature is set to three hundred degrees, and the heating time is ten minutes.
(III) advantageous effects
Compared with the prior art, the invention provides a process for improving the metal purity of Italian Tenuon furnace, which has the following beneficial effects:
1. according to the process for improving the metal purity of the Italian Tenuon furnace, the slag steel autogenous mill and the electromagnet in the step S2 and the step S4 are arranged, magnetic metal contained in scrap steel can be rapidly screened and collected, the Tenuon furnace can be used for subsequently purifying steel more conveniently, and the efficiency is higher.
2. According to the process for improving the metal purity degree of the Italian Tenuon furnace, the wet ball mill in the step S6 is arranged, steel can be further processed, magnetic powder which is difficult to remove on the surface of the steel is separated, the precision of the subsequently obtained steel is higher, the magnetic powder on the surface of the steel is completely removed when the subsequent steel of the Tenuon furnace is purified, and the processing efficiency of the Tenuon furnace is improved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
a process for increasing the purity level of metal in a tenone italian furnace comprising the steps of:
S1
collecting scrap steel raw materials, screening large-particle scrap steel raw materials and small-particle scrap steel raw materials, and collecting the screened large-particle scrap steel raw materials and small-particle scrap steel raw materials respectively.
S2
And (4) conveying the large-particle waste steel raw material obtained in the step (S1) to a slag steel autogenous mill through a forklift and a belt conveyor, crushing and extruding the waste steel, separating waste slag and steel on the waste steel, and uniformly collecting and placing the crushed large-particle waste steel raw material.
S3
And (4) conveying the small-particle waste steel raw materials obtained in the step (S1) to a slag steel autogenous mill through a forklift and a belt conveyor, crushing and extruding the waste steel, separating waste slag on the waste steel from steel, and uniformly collecting and placing the crushed large-particle waste steel raw materials.
S4
The crushed waste slag obtained in the step S2 and the steel material are turned over by a turning machine, and magnetic adsorption is performed on the upper part of the waste slag by using an electromagnet, so that the magnetic metal contained in the waste slag is collected and recovered.
S5
The crushed waste slag obtained in the step S3 and the steel material are turned over by a turning machine, and magnetic adsorption is performed on the upper part of the waste slag by using an electromagnet, so that the magnetic metal contained in the waste slag is collected and recovered.
S6
And (5) putting the steel materials obtained in the steps S4 and S5 into a wet ball mill for processing to obtain the bean steel.
Example two:
a process for increasing the purity level of metal in a tenone italian furnace comprising the steps of:
S1
collecting scrap steel raw materials, screening large-particle scrap steel raw materials and small-particle scrap steel raw materials, and collecting the screened large-particle scrap steel raw materials and small-particle scrap steel raw materials respectively.
S2
And (4) conveying the large-particle waste steel raw material obtained in the step (S1) to a slag steel autogenous mill through a forklift and a belt conveyor, crushing and extruding the waste steel, separating waste slag and steel on the waste steel, and uniformly collecting and placing the crushed large-particle waste steel raw material.
S3
And (4) conveying the small-particle waste steel raw materials obtained in the step (S1) to a slag steel autogenous mill through a forklift and a belt conveyor, crushing and extruding the waste steel, separating waste slag on the waste steel from steel, and uniformly collecting and placing the crushed large-particle waste steel raw materials.
S4
The crushed waste slag obtained in the step S2 and the steel material are turned over by a turning machine, and magnetic adsorption is performed on the upper part of the waste slag by using an electromagnet, so that the magnetic metal contained in the waste slag is collected and recovered.
S5
The crushed waste slag obtained in the step S3 and the steel material are turned over by a turning machine, and magnetic adsorption is performed on the upper part of the waste slag by using an electromagnet, so that the magnetic metal contained in the waste slag is collected and recovered.
S6
And (5) putting the steel materials obtained in the steps S4 and S5 into a wet ball mill for processing to obtain the bean steel.
When the wet ball mill is used for processing steel in the step S6, water needs to be added for multiple times and the water adding amount is reduced sequentially, so that the normal operation of the wet ball mill during working is ensured, when the wet ball mill is used for processing steel, the step S6 also obtains ore pulp, the ore pulp is sent to magnetic separation equipment for magnetic separation, the concentrate after magnetic separation is dehydrated through solid-liquid separation equipment to obtain high-grade iron concentrate, the tailing pulp is dehydrated through the solid-liquid separation equipment to obtain tailing mud, and the secondary purification work can be carried out on the pulp.
Example three:
a process for increasing the purity level of metal in a tenone italian furnace comprising the steps of:
S1
collecting scrap steel raw materials, screening large-particle scrap steel raw materials and small-particle scrap steel raw materials, and collecting the screened large-particle scrap steel raw materials and small-particle scrap steel raw materials respectively.
S2
And (4) conveying the large-particle waste steel raw material obtained in the step (S1) to a slag steel autogenous mill through a forklift and a belt conveyor, crushing and extruding the waste steel, separating waste slag and steel on the waste steel, and uniformly collecting and placing the crushed large-particle waste steel raw material.
S3
And (4) conveying the small-particle waste steel raw materials obtained in the step (S1) to a slag steel autogenous mill through a forklift and a belt conveyor, crushing and extruding the waste steel, separating waste slag on the waste steel from steel, and uniformly collecting and placing the crushed large-particle waste steel raw materials.
S4
The crushed waste slag obtained in the step S2 and the steel material are turned over by a turning machine, and magnetic adsorption is performed on the upper part of the waste slag by using an electromagnet, so that the magnetic metal contained in the waste slag is collected and recovered.
S5
The crushed waste slag obtained in the step S3 and the steel material are turned over by a turning machine, and magnetic adsorption is performed on the upper part of the waste slag by using an electromagnet, so that the magnetic metal contained in the waste slag is collected and recovered.
S6
And (5) putting the steel materials obtained in the steps S4 and S5 into a wet ball mill for processing to obtain the bean steel.
Step S6, when the wet ball mill is used for processing steel, water needs to be added for multiple times and the water adding amount is reduced in sequence, the normal operation of the wet ball mill is guaranteed, step S6, when the wet ball mill is used for processing steel, ore slurry is obtained, the ore slurry is sent to magnetic separation equipment for magnetic separation, concentrate liquid after the magnetic separation is dehydrated through solid-liquid separation equipment, high-grade iron concentrate powder is obtained, tailing liquid is dehydrated through the solid-liquid separation equipment, tailing mud is obtained, secondary purification work can be conducted on the ore slurry, the bean steel obtained in step S6 is placed into a dryer for drying and is uniformly stacked into a Tenuoen furnace, the bean steel can be uniformly dried, the surface of the bean steel is prevented from containing water, the bean steel obtained in step S6 is placed into the Tenuoen furnace for preheating work, the temperature is set to be three hundred degrees, and the heating time is ten minutes.
Example four:
a process for increasing the purity level of metal in a tenone italian furnace comprising the steps of:
S1
collecting scrap steel raw materials, screening large-particle scrap steel raw materials and small-particle scrap steel raw materials, and collecting the screened large-particle scrap steel raw materials and small-particle scrap steel raw materials respectively.
S2
And (4) conveying the large-particle waste steel raw material obtained in the step (S1) to a slag steel autogenous mill through a forklift and a belt conveyor, crushing and extruding the waste steel, separating waste slag and steel on the waste steel, and uniformly collecting and placing the crushed large-particle waste steel raw material.
S3
And (4) conveying the small-particle waste steel raw materials obtained in the step (S1) to a slag steel autogenous mill through a forklift and a belt conveyor, crushing and extruding the waste steel, separating waste slag on the waste steel from steel, and uniformly collecting and placing the crushed large-particle waste steel raw materials.
S4
The crushed waste slag obtained in the step S2 and the steel material are turned over by a turning machine, and magnetic adsorption is performed on the upper part of the waste slag by using an electromagnet, so that the magnetic metal contained in the waste slag is collected and recovered.
S5
The crushed waste slag obtained in the step S3 and the steel material are turned over by a turning machine, and magnetic adsorption is performed on the upper part of the waste slag by using an electromagnet, so that the magnetic metal contained in the waste slag is collected and recovered.
S6
And (5) putting the steel materials obtained in the steps S4 and S5 into a wet ball mill for processing to obtain the bean steel.
Step S6, when the wet ball mill is used for processing steel, water needs to be added for multiple times and the water adding amount is reduced in sequence, the normal operation of the wet ball mill is ensured, step S6, when the wet ball mill is used for processing steel, ore pulp is obtained, the ore pulp is sent to magnetic separation equipment for magnetic separation, concentrate liquid after magnetic separation is dehydrated through solid-liquid separation equipment to obtain high-grade iron concentrate powder, tailing liquid is dehydrated through solid-liquid separation equipment to obtain tailing mud, secondary purification work can be carried out on the ore pulp, the bean steel obtained in step S6 is put into a dryer for drying and is uniformly stacked into a Tenuoen furnace, the bean steel can be uniformly dried to avoid the surface of the bean steel containing water, the bean steel obtained in step S6 is put into the Tenuoen furnace for preheating work, the temperature is set to be five hundred degrees, the heating time is twenty minutes, and by setting the slag steel self-grinding machine and the electromagnet in step S2 and step S4, can sieve and collect the magnetic metal that contains in the scrap steel fast, it is more convenient to make the carnot stove follow-up purification to steel carrying on, efficiency is higher, wet ball mill through setting up in step S6, can further process steel, the magnetic that is difficult to get rid of on its surface is separated simultaneously, the steel precision that makes follow-up reacing is higher, thereby steel surface magnetic is got rid of completely when making the follow-up steel purification of carnot stove, the efficiency that the carnot stove processed has been improved.
The invention has the beneficial effects that: through the arrangement of the slag steel autogenous mill and the electromagnet in the step S2 and the step S4, magnetic metal contained in scrap steel can be rapidly screened and collected, the subsequent steel purification of the Tenuon furnace is more convenient, the efficiency is higher, through the arrangement of the wet ball mill in the step S6, the steel can be further processed, magnetic powder which is difficult to remove on the surface of the steel is separated, the subsequent steel accuracy is higher, the magnetic powder on the surface of the steel is completely removed during the subsequent steel purification of the Tenuon furnace, and the processing efficiency of the Tenuon furnace is improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A process for increasing the purity level of a metal in an Italian Tenuon furnace, comprising the steps of:
S1
collecting scrap steel raw materials, screening large-particle scrap steel raw materials and small-particle scrap steel raw materials, and respectively collecting the screened large-particle scrap steel raw materials and small-particle scrap steel raw materials;
S2
conveying the large-particle waste steel raw material obtained in the step S1 into a slag steel autogenous mill through a forklift and a belt conveyor, crushing and extruding the waste steel, separating waste slag on the waste steel from steel, and uniformly collecting and placing the crushed large-particle waste steel raw material;
S3
conveying the small-particle waste steel raw materials obtained in the step S1 to a slag steel autogenous mill through a forklift and a belt conveyor, crushing and extruding the waste steel, separating waste slag and steel on the waste steel, uniformly collecting the crushed large-particle waste steel raw materials, and placing the large-particle waste steel raw materials;
S4
turning over the crushed waste residues and the steel materials obtained in the step S2 through a turning machine, and simultaneously performing magnetic adsorption on the upper parts of the waste residues by using an electromagnet, and collecting and recycling magnetic metals contained in the waste residues;
S5
turning over the crushed waste residues and the steel materials obtained in the step S3 through a turning machine, and simultaneously performing magnetic adsorption on the upper parts of the waste residues by using an electromagnet, and collecting and recycling magnetic metals contained in the waste residues;
S6
and (5) putting the steel materials obtained in the steps S4 and S5 into a wet ball mill for processing to obtain the bean steel.
2. The process of claim 1 for increasing the purity of Italian Denno furnace metals, wherein: in the step S6, when the wet ball mill is used for processing steel, water needs to be added for multiple times, and the water adding amount is reduced sequentially.
3. The process of claim 1 for increasing the purity of Italian Denno furnace metals, wherein: and step S6, ore slurry is also obtained when the wet ball mill is used for processing steel, the ore slurry is sent to magnetic separation equipment for magnetic separation, the concentrate after magnetic separation is dehydrated by solid-liquid separation equipment to obtain high-grade iron concentrate, and the tailing slurry is dehydrated by the solid-liquid separation equipment to obtain tailing slurry.
4. The process of claim 1 for increasing the purity of Italian Denno furnace metals, wherein: and (5) putting the bean steels obtained in the step (S6) into a dryer for drying, and uniformly stacking the bean steels into a Tenuon furnace.
5. The process of claim 4, wherein the metal purity of the Italian Tenuon furnace is increased by: and (4) putting the bean steels obtained in the step (S6) into a Tenuon furnace for preheating, wherein the temperature is set to be three hundred ℃, and the heating time is ten minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210251537.XA CN114589189A (en) | 2022-03-15 | 2022-03-15 | Process for improving Italy Tenuon furnace metal purity degree |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210251537.XA CN114589189A (en) | 2022-03-15 | 2022-03-15 | Process for improving Italy Tenuon furnace metal purity degree |
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| Publication Number | Publication Date |
|---|---|
| CN114589189A true CN114589189A (en) | 2022-06-07 |
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| CN202210251537.XA Pending CN114589189A (en) | 2022-03-15 | 2022-03-15 | Process for improving Italy Tenuon furnace metal purity degree |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1628910A (en) * | 2003-12-15 | 2005-06-22 | 湘潭钢铁集团有限公司 | Process for ball milling and water washing of waste iron and steel slag, slag slurry treatment process, and apparatus therefor |
| JP2008120607A (en) * | 2006-11-08 | 2008-05-29 | Jfe Steel Kk | Method for processing steel slag |
| CN101693928A (en) * | 2009-10-16 | 2010-04-14 | 首钢总公司 | Method for purifying primarily selected slag steel |
| CN101927208A (en) * | 2009-06-23 | 2010-12-29 | 鞍山钢铁集团公司 | Optimized process for processing steel slag by magnetic separation |
| CN102382938A (en) * | 2011-09-20 | 2012-03-21 | 李科胜 | Ferrous waste smelting process by utilizing natural gas for preheating |
| CN102747174A (en) * | 2012-07-04 | 2012-10-24 | 新兴河北工程技术有限公司 | Process for extracting steel scrap and fine iron powder from slag by using dry method |
| CN105039612A (en) * | 2015-06-29 | 2015-11-11 | 上海宝钢节能环保技术有限公司 | Method for recycling metallic iron from stainless steel slag |
| CN210614636U (en) * | 2019-09-25 | 2020-05-26 | 云南曲靖钢铁集团凤凰钢铁有限公司 | Resource recycling system for steelmaking tailings |
-
2022
- 2022-03-15 CN CN202210251537.XA patent/CN114589189A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1628910A (en) * | 2003-12-15 | 2005-06-22 | 湘潭钢铁集团有限公司 | Process for ball milling and water washing of waste iron and steel slag, slag slurry treatment process, and apparatus therefor |
| JP2008120607A (en) * | 2006-11-08 | 2008-05-29 | Jfe Steel Kk | Method for processing steel slag |
| CN101927208A (en) * | 2009-06-23 | 2010-12-29 | 鞍山钢铁集团公司 | Optimized process for processing steel slag by magnetic separation |
| CN101693928A (en) * | 2009-10-16 | 2010-04-14 | 首钢总公司 | Method for purifying primarily selected slag steel |
| CN102382938A (en) * | 2011-09-20 | 2012-03-21 | 李科胜 | Ferrous waste smelting process by utilizing natural gas for preheating |
| CN102747174A (en) * | 2012-07-04 | 2012-10-24 | 新兴河北工程技术有限公司 | Process for extracting steel scrap and fine iron powder from slag by using dry method |
| CN105039612A (en) * | 2015-06-29 | 2015-11-11 | 上海宝钢节能环保技术有限公司 | Method for recycling metallic iron from stainless steel slag |
| CN210614636U (en) * | 2019-09-25 | 2020-05-26 | 云南曲靖钢铁集团凤凰钢铁有限公司 | Resource recycling system for steelmaking tailings |
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