CN103213975B - Method for extracting automobile friction plates and cathode materials from graphite by-products - Google Patents
Method for extracting automobile friction plates and cathode materials from graphite by-products Download PDFInfo
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- CN103213975B CN103213975B CN201310140089.7A CN201310140089A CN103213975B CN 103213975 B CN103213975 B CN 103213975B CN 201310140089 A CN201310140089 A CN 201310140089A CN 103213975 B CN103213975 B CN 103213975B
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Abstract
The invention relates to a method for extracting automobile friction plates and cathode materials from graphite by-products. The method comprises the following steps of: (1), magnetically separating; and (2), screening magnetically separated graphite materials. The method has the advantages that the graphite material with the grain diameter of 0.2-0.075mm is used as friction plate material to replace imported material to manufacture medium-grade and high-grade brake plates; the graphite materials, the grain diameters of which are more than 0.2mm and less than 0.075mm, are used as cathode materials, and therefore the ash content is reduced; the purity is increased; the service life is long; the lubricating property is good; furthermore, the method disclosed by the invention is energy-saving, environment-friendly and low in cost and is capable of greatly increasing the product efficiency.
Description
Technical field
The present invention relates to graphite material technical field, specifically in a kind of graphite byproduct, extract the method for automobile friction and negative material.
Background technology
The byproduct (Graphite Powder 99) of present domestic graphite generally it can be used as steel-smelting and carburating agent, refractory materials additive uses, and utilization benefit is low, deficiency in economic performance; But, the foreign imported raw material of the high-grade many employings of friction plate of domestic automobile, cost is high; Even if some Graphite Powder 99 uses as negative material, higher to the requirement of ash content, so Graphite Powder 99 can to do negative material utilization ratio lower, and major part is many as carburelant, refractory brick additive, make domestic limited resources can not get sufficient utilization like this, cause a large amount of resource waste and pollutions.
Summary of the invention
The object of the invention is to utilize graphite powder, removing magnetic substance wherein, improves purity, reduces ash content, as the material of superior automobile friction plate and negative potential.
The method extracting automobile friction and negative material in a kind of graphite byproduct of the present invention is:
1., magnetic separation;
2., the graphite material after magnetic separation is screened.
Described magnetic separation be divided into one-level, secondary, more than three grades or three grades, magnetic separation be by graphite powder part magnetic substance reject.
Described magnetic substance is ferric oxide and other magnetic substance.
Described screening utilizes multistage sieve to carry out the collection of different-grain diameter size to the material after magnetic separation.
The magneticstrength of described one-level magnetic separation is 1500-3000 Gauss, and its ash content is 0.3-0.28%, and degree of graphitization is 94%.
The magneticstrength of described secondary magnetic separation is 3000-5000 Gauss, and its ash content is 0.27-0.25%, and degree of graphitization is 94%.
The magneticstrength of three grades of described magnetic separation is 5000-7000 Gauss, and its ash content is 0.23-0.20%, and degree of graphitization is 94%.
The magneticstrength of the magnetic separation of described more than three grades is more than 7000 Gausses, and its ash content is 0.20-0.15%, and degree of graphitization is 94%.
Described multi-stage screening is upper strata, middle layer, lower floor.
Described upper strata granularity is more than 0.2mm, can use as negative material.
Described middle layer granularity is 0.2mm---0.075mm, can use as friction materials.
Described lower floor's granularity is below 0.075mm, can use as negative material.
Extract the method for automobile friction and negative material in a kind of graphite byproduct of the present invention, its advantage is: can be 0.2mm using particle diameter---0.075mm carrys out substituting import one material as friction plate material, as medium and high classes brake facing; Be more than 0.2mm by particle diameter, below 0.075mm can be used as negative material, reduce ash content, improve purity, the life-span is long, oilness good; And energy-saving and environmental protection, cost is low, substantially increases product efficiency.
Embodiment
embodiment one:
1., magnetic separation; Use magneticstrength is that the one-level magnetic separation of 2000 Gausses carries out magnetic separation to Graphite Powder 99, and its ash content is 0.3%, and degree of graphitization is 94%.
2., the graphite material after magnetic separation is screened; Namely collect the particle of each layer, the particle of to be the particle of more than 0.2mm and lower floor's granularity using upper strata granularity be below 0.075mm uses as negative material; Being 0.2mm using middle layer granularity---the particle of 0.075mm uses as friction materials.
embodiment two:
1., magnetic separation; Use magneticstrength is that the secondary magnetic separation of 4000 Gausses carries out magnetic separation to Graphite Powder 99, and its ash content is 0.26%, and degree of graphitization is 94%.
2., the graphite material after magnetic separation is screened; Namely collect the particle of each layer, the particle of to be the particle of more than 0.2mm and lower floor's granularity using upper strata granularity be below 0.075mm uses as negative material; Being 0.2mm using middle layer granularity---the particle of 0.075mm uses as friction materials.
embodiment three:
1., magnetic separation; Use magneticstrength is that three grades of magnetic separation of 6000 Gausses carry out magnetic separation to Graphite Powder 99, and its ash content is 0.21%, and degree of graphitization is 94%.
2., the graphite material after magnetic separation is screened; Namely collect the particle of each layer, the particle of to be the particle of more than 0.2mm and lower floor's granularity using upper strata granularity be below 0.075mm uses as negative material; Being 0.2mm using middle layer granularity---the particle of 0.075mm uses as friction materials.
embodiment four:
1., magnetic separation; Use magneticstrength to be that more than 7000 Gausses carry out magnetic separation to Graphite Powder 99, its ash content is 0.15%, and degree of graphitization is 94%.
2., the graphite material after magnetic separation is screened; Namely collect the particle of each layer, the particle of to be the particle of more than 0.2mm and lower floor's granularity using upper strata granularity be below 0.075mm uses as negative material; Being 0.2mm using middle layer granularity---the particle of 0.075mm uses as friction materials.
Claims (5)
1. extract a method for automobile friction and negative material in graphite byproduct, be:
1., magnetic separation;
2., the graphite material after magnetic separation is screened;
Described magnetic separation be divided into one-level, secondary, more than three grades or three grades, magnetic separation be by graphite powder part magnetic substance reject;
The magneticstrength of described one-level magnetic separation is 1500-3000 Gauss, and its ash content is 0.3-0.28%, and degree of graphitization is 94%; The magneticstrength of described secondary magnetic separation is 3000-5000 Gauss, and its ash content is 0.27-0.25%, and degree of graphitization is 94%; The magneticstrength of three grades of described magnetic separation is 5000-7000 Gauss, and its ash content is 0.23-0.20%, and degree of graphitization is 94%; The magneticstrength of the magnetic separation of described more than three grades is more than 7000 Gausses, and its ash content is 0.20-0.15%, and degree of graphitization is 94%;
Described screening utilizes multistage sieve to carry out the collection of different-grain diameter size to the material after magnetic separation;
Described multi-stage screening is upper strata, middle layer, lower floor.
2. extract the method for automobile friction and negative material in graphite byproduct according to claim 1, it is characterized in that: described magnetic substance is ferric oxide and other magnetic substance.
3. extract the method for automobile friction and negative material in graphite byproduct according to claim 1, it is characterized in that: described upper strata granularity is that more than 0.2mm can be used as negative material use.
4. extracting the method for automobile friction and negative material in graphite byproduct according to claim 1, it is characterized in that: described middle layer granularity is 0.2mm---0.075mm can be used as friction materials and uses.
5. extract the method for automobile friction and negative material in graphite byproduct according to claim 1, it is characterized in that: described lower floor's granularity is that below 0.075mm can be used as negative material use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310140089.7A CN103213975B (en) | 2013-04-22 | 2013-04-22 | Method for extracting automobile friction plates and cathode materials from graphite by-products |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310140089.7A CN103213975B (en) | 2013-04-22 | 2013-04-22 | Method for extracting automobile friction plates and cathode materials from graphite by-products |
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| Publication Number | Publication Date |
|---|---|
| CN103213975A CN103213975A (en) | 2013-07-24 |
| CN103213975B true CN103213975B (en) | 2015-04-22 |
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| CN201310140089.7A Expired - Fee Related CN103213975B (en) | 2013-04-22 | 2013-04-22 | Method for extracting automobile friction plates and cathode materials from graphite by-products |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2449811Y (en) * | 2000-10-17 | 2001-09-26 | 梁道明 | Graphite ore electromagnetic separating apparatus |
| CN1654608A (en) * | 2004-10-26 | 2005-08-17 | 张继武 | Antiwear dynamic self-repairing lubricant for metal and preparation method thereof |
| CN102861661A (en) * | 2012-09-24 | 2013-01-09 | 湛江市聚鑫新能源有限公司 | Beneficiation method and beneficiation equipment system for graphite ores |
| CN103045870A (en) * | 2013-01-05 | 2013-04-17 | 深圳市泰力废旧电池回收技术有限公司 | Method for comprehensively recycling valuable metal from abandoned lithium ion batteries |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0019417D0 (en) * | 2000-08-09 | 2000-09-27 | Mat & Separations Tech Int Ltd | Mesoporous carbons |
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2013
- 2013-04-22 CN CN201310140089.7A patent/CN103213975B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2449811Y (en) * | 2000-10-17 | 2001-09-26 | 梁道明 | Graphite ore electromagnetic separating apparatus |
| CN1654608A (en) * | 2004-10-26 | 2005-08-17 | 张继武 | Antiwear dynamic self-repairing lubricant for metal and preparation method thereof |
| CN102861661A (en) * | 2012-09-24 | 2013-01-09 | 湛江市聚鑫新能源有限公司 | Beneficiation method and beneficiation equipment system for graphite ores |
| CN103045870A (en) * | 2013-01-05 | 2013-04-17 | 深圳市泰力废旧电池回收技术有限公司 | Method for comprehensively recycling valuable metal from abandoned lithium ion batteries |
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| CN103213975A (en) | 2013-07-24 |
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