CN103952029A - Method for preparing wear-resistant material from tungsten tailings - Google Patents
Method for preparing wear-resistant material from tungsten tailings Download PDFInfo
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- CN103952029A CN103952029A CN201410191581.1A CN201410191581A CN103952029A CN 103952029 A CN103952029 A CN 103952029A CN 201410191581 A CN201410191581 A CN 201410191581A CN 103952029 A CN103952029 A CN 103952029A
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Abstract
The invention provides a method for preparing a wear-resistant material from tungsten tailings, belonging to the field of solid waste comprehensive utilization. The preparation method comprises the steps of pre-screening tungsten tailings, carrying out physical sorting, ultra-finely processing to obtain ultrafine tungsten tailings powder, grading and preparing the wear-resistant material from the ultrafine tungsten tailings powder with a specific grade level. The content of garnet in the wear-resistant material is higher than 85% and the utilization rate of tailings is 60-85%. The purposes of purification of garnet and particle size control are achieved by making full use of hardness differences and grain size distribution characteristics of different mineral components in tungsten tailings and selectively grinding and grading. The wear-resistant material disclosed by the invention has the advantages that the particle size is uniform, the purity is high, the requirements of wear-resistant fillers in the coating industry can be met, coating cost is reduced and the wear resistance of the coating is improved. The preparation method has the advantages that sources of raw materials are wide, the preparation method is simple and feasible, the added value of tungsten tailings is greatly improved, and the waste is turned into wealth; the method has good economic and environmental benefits.
Description
Technical field
The present invention relates to a kind of method and application thereof that utilizes tungsten mine tailing to prepare high-abrasive material, belong to solid waste comprehensive utilization field.
Background technology
Tungsten mine tailing is that tungsten ore raw ore is chosen residual gangue mineral after tungsten concentrate, and essential mineral composition comprises garnet, quartz and mica etc.For a long time, tungsten mine tailing is stored in earth's surface as a kind of solid waste heap or backfill enters mine, does not also have a kind of real efficient mass-producing to utilize the approach of tungsten mine tailing at present.These mine tailings have taken a large amount of soils, also may cause soil and water to pollute, and need every year to drop into a large amount of fund allocations, are extremely unfavorable for economic construction and environment protection, hinder the Sustainable development of bargh.
High-abrasive material is of a great variety, is widely used in the fields such as chemical industry, building and electronics, has wide market outlook and important strategic importance.Wherein the high-abrasive material for aspects such as wear-resistant paint and abrasion-proof terraces is mainly quartz sand and silicon carbide, and these material main sources are minal or synthetic, and cost is relatively high.Garnet content in high rigidity tungsten mine tailing is high, and hardness is large, and granularity is suitable, as high-abrasive material, has stable performance, wide material sources, cheap inherent advantage.
Selective milling refers to that the inhomogeneous material of mechanical property is in levigate process, intensity little by levigate, the phenomenon remaining that intensity is large.In tungsten mine tailing, garnet hardness is greater than other mineral constituent, and garnet enrichment in coarse particles in levigate process is got coarse particles by classification and can be obtained high, the even-grained garnet of purity.Comminution by gas stream is to pulverize without grinding media, and material is by between particle, collision is levigate mutually, and selective milling phenomenon is more obvious.
It is reported, current domestic tungsten mine tailing is useful on produces cement mixture, devitrified glass, pottery, non-burning brick etc., but has product low side, complex process, the shortcomings such as added value is low, number of applications is very limited, yet there are no the correlative study report that utilizes tungsten mine tailing to produce high-abrasive material.
Summary of the invention
The present invention makes full use of the selective milling effect of high rigidity component to soft mineral in tungsten mine tailing, invent a kind ofly by tungsten mine tailing is carried out to the method that prescreening, physical separation, super-fine processing and particle classifying obtain high-abrasive material, design its application in coating.Adopt present method to prepare high-abrasive material and can utilize in a large number tungsten mine tailing, in exploitation high-performance abrasion-proof material, also for this solid waste of tungsten mine tailing, find a kind of approach that utilizes of high added value.
The technical solution adopted for the present invention to solve the technical problems is as follows:
A kind of tungsten mine tailing is prepared the method for high-abrasive material, it is characterized in that, make full use of the selective milling effect of high rigidity component to soft mineral in tungsten mine tailing, design suitable complete processing, adopt following steps: after tungsten mine tailing is dry, by prescreening, physical separation, to the tungsten mine tailing super-fine processing after sorting, obtain ultra-fine tungsten mine tailing powder, after classification, get specific grade product, make high-performance abrasion-proof material.
A kind of tungsten mine tailing of the present invention is prepared the method for high-abrasive material, and in described tungsten mine tailing, garnet content is higher than 70%, and in described high-abrasive material, garnet content is higher than 85%, and Mine Tailings Utilization reaches 60-85%.
A kind of tungsten mine tailing of the present invention is prepared the method for high-abrasive material, described tungsten mine tailing prescreening mesh size is 100-325 order, described physical separation comprises gravity treatment and magnetic separation, after described choosing, tungsten mine tailing super-fine processing comprises ball milling or comminution by gas stream, and described ultra-fine tungsten mine tailing particle classifying comprises screening or air classifying.
The high-abrasive material that uses the method to prepare can be used for cold coating, and this coating is mainly comprised of the high-abrasive material of 20-40% and the resin of 80-60%.
The present invention compared with prior art, has the following advantages and positively effect:
(1) the method technique is simple, makes full use of garnet in tungsten mine tailing, can utilize in a large number tungsten mine tailing to produce high-abrasive material, greatly improves the comprehensive utilization value of tungsten mine tailing, has good economic benefit and social benefit.
(2) the method, by prescreening, physical separation, can effectively be removed impurity in tungsten mine tailing, and improves garnet content.Utilize the feature that garnet hardness is large, make tungsten mine tailing, in super-fine processing process, Selective grinding occur, then by classification, play the object of granularity control and sorting purifying simultaneously, thus the epigranular of obtaining, the high-abrasive material that purity is high.
(3) high-abrasive material that prepared by the method, for coating, can improve the mechanical propertys such as wear resistance, surface hardness and intensity of coating composite product.
(4) desired raw material wide material sources, cheap, reduces costs, and wear resisting property is stable, is widely used.
Embodiment
In order to understand better the present invention, below in conjunction with embodiment, further illustrate content of the present invention, but the present invention is not limited to following examples, person skilled in the relevant technique, without departing from the spirit and scope of the present invention, also may make various variations.Therefore, all technical schemes that are equal to also should belong to category of the present invention, should be limited by each claim.
Embodiment 1:
A kind of tungsten mine tailing is prepared the method for high-abrasive material, its operation steps comprises: tungsten mine tailing is dried to moisture content below 5%, with 200 mesh standard sieve screenings, undersized product weighs magnetic combined sorting, get and select after product to carry out comminution by gas stream, ultra-fine tungsten mine tailing powder is carried out to classification, get the above product of 600 order and obtain high-abrasive material, each intermediate product and high-abrasive material productive rate and garnet content are in Table 1.
Table 1 intermediate product and high-abrasive material productive rate and garnet content
| Product | Tungsten mine tailing | Undersized product | Select after product | High-abrasive material |
| Productive rate/% | 100 | 91 | 86 | 72 |
| Garnet content/% | 73.5 | 79.2 | 82.5 | 96.1 |
Embodiment 2:
A kind of tungsten mine tailing is prepared superfine processing method in high-abrasive material, its operation steps comprises: tungsten mine tailing is dried to moisture content below 5%, after screening, with micronizer mill, by high velocity air, realize the super-fine processing of tungsten mine tailing, tungsten mine tailing after pulverizing, by air classifying, is met the tungsten mine tailing fine powder of granularity requirements.
Table 2 gas flow crushing process parameter
Embodiment 3:
A kind of tungsten mine tailing is prepared superfine processing method in high-abrasive material, its operation steps comprises: tungsten mine tailing is dried to moisture content below 5%, after screening, with the ball grinder graded super-fine processing that realizes tungsten mine tailing by closed circuit grinding mode, be met the tungsten mine tailing fine powder of granularity requirements.
The ball grinder graded processing parameter of table 3
Embodiment 4:
Tungsten mine tailing is prepared an application for high-abrasive material, comprises the following steps: high-abrasive material and resin are prepared burden by table 4 formula, mixture uniform stirring 2h is made to cold coating, spray on standard test plate (panel), test coating property is in Table 5.
Table 4 formulation for coating material
| Component | High-abrasive material | Acrylic resin | Solvent | Wilkinite |
| Content/% | 24.7 | 49.4 | 24.7 | 1.2 |
Table 5 coating property
| Interventions Requested | Technical indicator | Assay |
| Former paint is at condition in container | Stir rear even without lump | Meet the requirements |
| Sticking power, level≤ | 2 | 1 |
| Snappiness, mm≤ | 2 | 1 |
| Pencil hardness (168h) >= | HB | H |
| Viscosity (being coated with 4#), S, 25 ℃, >= | 80 | 90 |
| Petrol-resistance, 48h | Non-foaming, do not come off | Meet the requirements |
| Salt water resistance (5%NaCl) 48h | Non-foaming, do not come off | Meet the requirements |
| Wear resistance (500g, 50r) | Actual measurement | 0.012 |
Claims (8)
1. tungsten mine tailing is prepared a method for high-abrasive material, and its feature comprises the prescreening of tungsten mine tailing, physical concentration, super-fine processing and four steps of particle classifying.
2. a kind of tungsten mine tailing according to claim 1 is prepared the method for high-abrasive material, it is characterized in that: described tungsten mine tailing is garnet content higher than 70% the hard mine tailing of height.
3. a kind of tungsten mine tailing according to claim 1 is prepared the method for high-abrasive material, it is characterized in that: described tungsten mine tailing prescreening mesh size is 100-325 order.
4. a kind of tungsten mine tailing according to claim 1 is prepared the method for high-abrasive material, it is characterized in that: described tungsten mine tailing physical separation comprises gravity treatment and magnetic separation.
5. a kind of tungsten mine tailing according to claim 1 is prepared the method for high-abrasive material, it is characterized in that: under described sieve, tungsten mine tailing super-fine processing comprises ball milling or comminution by gas stream.
6. a kind of tungsten mine tailing according to claim 1 is prepared the method for high-abrasive material, it is characterized in that: described ultra-fine tungsten mine tailing particle classifying comprises screening or air classifying.
7. a kind of tungsten mine tailing according to claim 1 is prepared the method for high-abrasive material, it is characterized in that: described high-abrasive material garnet content is higher than 85%, and Mine Tailings Utilization reaches 60-85%, epigranular, and purity is high.
8. a kind of tungsten mine tailing is prepared the method for high-abrasive material according to claim 1 or 5, it is characterized in that: described high-abrasive material is for cold coating, and this coating is mainly comprised of the high-abrasive material of 20-40% and the resin of 80-60%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410191581.1A CN103952029A (en) | 2014-05-08 | 2014-05-08 | Method for preparing wear-resistant material from tungsten tailings |
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| CN201410191581.1A CN103952029A (en) | 2014-05-08 | 2014-05-08 | Method for preparing wear-resistant material from tungsten tailings |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105170277A (en) * | 2015-10-27 | 2015-12-23 | 张荣斌 | Screening method and system for tungsten concentrate |
| CN106398325A (en) * | 2016-04-20 | 2017-02-15 | 李树华 | Production method for filling material of metallic tailings |
| CN109626976A (en) * | 2018-12-24 | 2019-04-16 | 湖南柿竹园有色金属有限责任公司 | A method of iron-based garnet ornament materials is prepared using mill tailings |
| CN111655876A (en) * | 2017-11-09 | 2020-09-11 | 美国硼砂集团 | Mineral recovery process |
| CN111960725A (en) * | 2020-08-26 | 2020-11-20 | 江西功诚泰盛制造有限公司 | grindstone terrace and construction method and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103540170A (en) * | 2013-09-26 | 2014-01-29 | 湖南有色新田岭钨业有限公司 | Modified tungsten tailings as well as preparation method and application thereof as plastic filler |
-
2014
- 2014-05-08 CN CN201410191581.1A patent/CN103952029A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103540170A (en) * | 2013-09-26 | 2014-01-29 | 湖南有色新田岭钨业有限公司 | Modified tungsten tailings as well as preparation method and application thereof as plastic filler |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105170277A (en) * | 2015-10-27 | 2015-12-23 | 张荣斌 | Screening method and system for tungsten concentrate |
| CN105170277B (en) * | 2015-10-27 | 2017-10-10 | 张荣斌 | The screening technique and system of a kind of tungsten concentrate |
| CN106398325A (en) * | 2016-04-20 | 2017-02-15 | 李树华 | Production method for filling material of metallic tailings |
| CN111655876A (en) * | 2017-11-09 | 2020-09-11 | 美国硼砂集团 | Mineral recovery process |
| CN109626976A (en) * | 2018-12-24 | 2019-04-16 | 湖南柿竹园有色金属有限责任公司 | A method of iron-based garnet ornament materials is prepared using mill tailings |
| CN109626976B (en) * | 2018-12-24 | 2021-08-10 | 湖南柿竹园有色金属有限责任公司 | Method for preparing iron-based garnet decorative material by using mine tailings |
| CN111960725A (en) * | 2020-08-26 | 2020-11-20 | 江西功诚泰盛制造有限公司 | grindstone terrace and construction method and application thereof |
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