CN103952029A - Method for preparing wear-resistant material from tungsten tailings - Google Patents
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- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 62
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 62
- 239000010937 tungsten Substances 0.000 claims abstract description 62
- 239000000463 material Substances 0.000 claims abstract description 45
- 238000000034 method Methods 0.000 claims abstract description 27
- 239000002223 garnet Substances 0.000 claims abstract description 17
- 239000002245 particle Substances 0.000 claims abstract description 13
- 239000000843 powder Substances 0.000 claims abstract description 10
- 238000012545 processing Methods 0.000 claims abstract description 10
- 238000012216 screening Methods 0.000 claims abstract description 8
- 238000000576 coating method Methods 0.000 claims description 11
- 238000000926 separation method Methods 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 238000010902 jet-milling Methods 0.000 claims description 3
- 238000007885 magnetic separation Methods 0.000 claims description 3
- 238000000498 ball milling Methods 0.000 claims description 2
- 230000005484 gravity Effects 0.000 claims description 2
- 239000011342 resin composition Substances 0.000 claims 1
- 238000000227 grinding Methods 0.000 abstract description 10
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 7
- 239000011707 mineral Substances 0.000 abstract description 7
- 239000003973 paint Substances 0.000 abstract description 4
- 239000002910 solid waste Substances 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract description 2
- 238000000746 purification Methods 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 239000000945 filler Substances 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
- 239000000047 product Substances 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 238000001035 drying Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000011362 coarse particle Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 239000013067 intermediate product Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000002241 glass-ceramic Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
本发明提供了一种利用钨尾矿制备耐磨材料的方法，属于固体废弃物综合利用领域。本发明通过对钨尾矿进行预先筛分、物理分选，超细加工得到超细钨尾矿粉体，分级后取特定粒级产品制得耐磨材料，其石榴子石含量高于85％，尾矿利用率达60-85％。充分利用钨尾矿不同矿物组分的硬度差异和粒级分布特点，通过选择性磨矿和分级，同时达到石榴子石纯化和粒度控制的目的。本发明获得的耐磨材料粒度均匀、纯度高，能满足涂料行业耐磨填料的要求，降低涂料成本，提高涂料耐磨性能。本发明原料来源广泛、制备方法简单易行，大大提高钨尾矿附加值的同时，变废为宝，具有良好的经济效益和环境效益。The invention provides a method for preparing wear-resistant materials from tungsten tailings, belonging to the field of comprehensive utilization of solid waste. The invention obtains superfine tungsten tailings powder through pre-screening, physical sorting and ultrafine processing of tungsten tailings, and obtains wear-resistant materials with specific particle size products after classification, and its garnet content is higher than 85%. , The utilization rate of tailings reaches 60-85%. Make full use of the hardness difference and particle size distribution characteristics of different mineral components of tungsten tailings, and achieve the purpose of garnet purification and particle size control at the same time through selective grinding and classification. The wear-resistant material obtained by the invention has uniform particle size and high purity, can meet the requirements of the wear-resistant filler in the paint industry, reduce the cost of the paint, and improve the wear-resistant performance of the paint. The invention has wide sources of raw materials, simple and easy preparation method, greatly increases the added value of tungsten tailings, turns waste into wealth, and has good economic and environmental benefits.
Description
技术领域technical field
本发明涉及一种利用钨尾矿制备耐磨材料的方法及其应用，属于固体废弃物综合利用领域。The invention relates to a method for preparing wear-resistant materials from tungsten tailings and an application thereof, belonging to the field of comprehensive utilization of solid waste.
背景技术Background technique
钨尾矿是钨矿原矿选取钨精矿后残留的脉石矿物，主要矿物成分包括石榴子石、石英及云母等。长期以来，钨尾矿作为一种固体废弃物堆存于地表或回填入矿井，目前还没有一种真正高效规模化利用钨尾矿的途径。这些尾矿占用了大量的土地，还可能造成土壤及水污染，每年需投入大量资金处理，十分不利于经济建设与环境保护，阻碍矿山企业的可持续发展。Tungsten tailings are gangue minerals left after tungsten concentrates are selected from raw tungsten ores. The main mineral components include garnet, quartz and mica. For a long time, tungsten tailings have been piled up on the surface or backfilled into mines as a kind of solid waste. At present, there is no real and efficient way to utilize tungsten tailings on a large scale. These tailings occupy a large amount of land, and may also cause soil and water pollution. A large amount of money needs to be invested in disposal every year, which is not conducive to economic construction and environmental protection, and hinders the sustainable development of mining enterprises.
耐磨材料种类繁多，广泛用于化工、建筑及电子等领域，具有广阔的市场前景和重要的战略意义。其中用于耐磨涂料及耐磨地坪等方面的耐磨材料主要为石英砂及碳化硅，这些材料主要来源为纯矿物或人工合成，成本相对较高。高硬度钨尾矿中的石榴石含量高，硬度大，粒度合适，用作耐磨材料具有性能稳定、来源广泛、价格低廉的天然优势。There are many kinds of wear-resistant materials, which are widely used in the fields of chemical industry, construction and electronics, etc., and have broad market prospects and important strategic significance. Among them, the wear-resistant materials used in wear-resistant coatings and wear-resistant floors are mainly quartz sand and silicon carbide. The main sources of these materials are pure minerals or artificial synthesis, and the cost is relatively high. High-hardness tungsten tailings contain high garnet content, high hardness, and suitable particle size. It has the natural advantages of stable performance, wide sources, and low price when used as wear-resistant materials.
选择性磨矿是指力学性质不均匀的物料在磨细过程中，强度小的被磨细，强度大的保留下来的现象。钨尾矿中石榴子石硬度大于其他矿物组分，磨细过程中石榴子石在粗颗粒中富集，通过分级取粗颗粒可得到纯度高、粒度均匀的石榴子石。气流粉碎为无磨矿介质粉碎，物料靠颗粒之间相互碰撞磨细，选择性磨矿现象更加明显。Selective grinding refers to the phenomenon that materials with inhomogeneous mechanical properties are ground during the grinding process, and those with low strength are ground, while those with high strength are retained. The hardness of garnet in tungsten tailings is greater than that of other mineral components. During the grinding process, garnet is enriched in coarse particles, and garnet with high purity and uniform particle size can be obtained by classifying coarse particles. Jet milling is milling without grinding media, and the material is ground by the collision between particles, and the selective grinding phenomenon is more obvious.
据报道，目前国内钨尾矿有用于生产水泥混合材、微晶玻璃、陶瓷、免烧砖等，但存在产品低端，工艺复杂，附加值低等缺点，应用数量十分有限，还未见有利用钨尾矿生产耐磨材料的相关研究报道。According to reports, domestic tungsten tailings are currently used in the production of cement mixtures, glass-ceramics, ceramics, unburned bricks, etc., but there are disadvantages such as low-end products, complicated processes, and low added value, and the number of applications is very limited. Research reports on the production of wear-resistant materials from tungsten tailings.
发明内容Contents of the invention
本发明充分利用钨尾矿中高硬度组分对软质矿物的选择性磨矿作用，发明一种通过对钨尾矿进行预先筛分、物理分选、超细加工和粉体分级得到耐磨材料的方法，设计其在涂料中的应用。采用本方法制备耐磨材料可以大量利用钨尾矿，在开发高性能耐磨材料的同时，也为钨尾矿这种固体废弃物找到一种高附加值的利用途径。The invention makes full use of the selective grinding effect of high-hardness components in tungsten tailings on soft minerals, and invents a wear-resistant material obtained by pre-screening, physical sorting, ultra-fine processing and powder classification of tungsten tailings method to design its application in coatings. The preparation of wear-resistant materials by the method can utilize a large amount of tungsten tailings, and at the same time of developing high-performance wear-resistant materials, it also finds a high value-added utilization method for solid waste such as tungsten tailings.
本发明解决其技术问题所采用的技术方案如下：The technical solution adopted by the present invention to solve its technical problems is as follows:
一种钨尾矿制备耐磨材料的方法，其特征在于，充分利用钨尾矿中高硬度组分对软质矿物的选择性磨矿作用，设计适当的加工工艺，采用以下步骤：将钨尾矿干燥后，通过预先筛分、物理分选，对分选后的钨尾矿超细加工，得到超细钨尾矿粉体，分级后取特定粒级产品，制得高性能耐磨材料。A method for preparing wear-resistant materials from tungsten tailings, which is characterized in that, making full use of the selective grinding effect of high hardness components in tungsten tailings on soft minerals, designing an appropriate processing technology, and adopting the following steps: making tungsten tailings After drying, through pre-screening and physical separation, the sorted tungsten tailings are ultra-finely processed to obtain ultra-fine tungsten tailings powder. After classification, specific particle size products are obtained to obtain high-performance wear-resistant materials.
本发明所述的一种钨尾矿制备耐磨材料的方法，所述钨尾矿中石榴子石含量高于70％，所述耐磨材料中石榴子石含量高于85％，尾矿利用率达60-85％。A method for preparing wear-resistant materials from tungsten tailings according to the present invention, the garnet content in the tungsten tailings is higher than 70%, the garnet content in the wear-resistant materials is higher than 85%, and the tailings can be used The rate reaches 60-85%.
本发明所述的一种钨尾矿制备耐磨材料的方法，所述钨尾矿预先筛分筛网孔径为100-325目，所述物理分选包括重选和磁选，所述选后钨尾矿超细加工包括球磨或气流粉碎，所述超细钨尾矿粉体分级包括筛分或空气分级。A method for preparing wear-resistant materials from tungsten tailings according to the present invention, the tungsten tailings are pre-screened with an aperture of 100-325 mesh, the physical separation includes gravity separation and magnetic separation, and the post-selection The ultrafine processing of tungsten tailings includes ball milling or jet crushing, and the classification of ultrafine tungsten tailings powder includes screening or air classification.
使用该方法制备的耐磨材料可用于树脂涂料，该涂料主要由20-40％的耐磨材料和80-60％的树脂组成。The wear-resistant material prepared by the method can be used in resin coatings, and the coating mainly consists of 20-40% of wear-resistant materials and 80-60% of resin.
本发明与现有技术相比，具有以下优点和积极效果：Compared with the prior art, the present invention has the following advantages and positive effects:
(1)该方法工艺简单，充分利用钨尾矿中石榴子石，可大量利用钨尾矿生产耐磨材料，大大提高钨尾矿的综合利用价值，具有良好的经济效益和社会效益。(1) The process is simple, and the garnet in the tungsten tailings can be fully utilized to produce wear-resistant materials, greatly improving the comprehensive utilization value of the tungsten tailings, and has good economic and social benefits.
(2)该方法通过预先筛分、物理分选，可有效去除钨尾矿中杂质，并提高石榴子石含量。利用石榴子石硬度大的特点，使钨尾矿在超细加工过程中发生选择性磨碎，然后通过分级同时起到粒度控制和分选纯化的目的，从而得到粒度均匀，纯度高的耐磨材料。(2) The method can effectively remove impurities in tungsten tailings and increase the content of garnet through pre-screening and physical separation. Utilizing the characteristics of high hardness of garnet, the tungsten tailings are selectively ground during the ultra-fine processing process, and then the purpose of particle size control and separation and purification is achieved through classification, so as to obtain uniform particle size and high purity wear-resistant Material.
(3)该方法制备的耐磨材料用于涂料，可提高涂料复合制品的耐磨性、表面硬度及强度等机械性能。(3) The wear-resistant material prepared by the method is used in coatings, which can improve mechanical properties such as wear resistance, surface hardness and strength of coating composite products.
(4)所需原料来源广泛，价格低廉，降低成本，耐磨性能稳定，应用广泛。(4) The raw materials needed are widely sourced, the price is low, the cost is reduced, the wear resistance is stable, and the application is extensive.
具体实施方式Detailed ways
为了更好地理解本发明，下面结合实施例进一步说明本发明的内容，但本发明并不局限于以下实施例，有关技术领域的技术人员，在不脱离本发明精神和范围的情况下，还可能作出各种变化。因此，所有等同的技术方案也应该属于本发明的范畴，应由各权力要求限定。In order to better understand the present invention, the content of the present invention will be further described below in conjunction with the examples, but the present invention is not limited to the following examples, those skilled in the relevant technical field, without departing from the spirit and scope of the present invention, can also Various changes are possible. Therefore, all equivalent technical solutions should also belong to the scope of the present invention and should be defined by the claims.
实施例1：Example 1:
一种钨尾矿制备耐磨材料的方法，其操作步骤包括：将钨尾矿烘干至水分含量5％以下，以200目标准筛筛分，筛下产物进行重磁联合分选，取选后产物进行气流粉碎，对超细钨尾矿粉体进行分级，取600目以上产物得到耐磨材料，各中间产物及耐磨材料产率与石榴子石含量见表1。A method for preparing wear-resistant materials from tungsten tailings, the operation steps comprising: drying the tungsten tailings to a moisture content of less than 5%, sieving with a 200-mesh standard sieve, performing combined gravity-magnetic separation on the products under the sieve, and selecting The final product is jet milled, and the ultrafine tungsten tailings powder is classified, and the wear-resistant material is obtained by taking the product with a mesh size of 600 or more. The yield and garnet content of each intermediate product and wear-resistant material are shown in Table 1.
表1中间产物及耐磨材料产率与石榴子石含量Table 1 Intermediate product and wear-resistant material yield and garnet content
实施例2：Example 2:
一种钨尾矿制备耐磨材料中超细加工方法，其操作步骤包括：将钨尾矿烘干至水分含量5％以下，筛分后以气流粉碎机通过高速气流来实现钨尾矿的超细加工，粉碎后的钨尾矿粉通过空气分级，得到满足粒度要求的钨尾矿细粉。An ultra-fine processing method for preparing wear-resistant materials from tungsten tailings. The operation steps include: drying the tungsten tailings to a moisture content below 5%, and after screening, use a jet mill to achieve ultra-fine processing of the tungsten tailings through high-speed airflow. Fine processing, the pulverized tungsten tailings powder is classified by air to obtain tungsten tailings fine powder that meets the particle size requirements.
表2气流粉碎工艺参数Table 2 Jet Milling Process Parameters
实施例3：Example 3:
一种钨尾矿制备耐磨材料中超细加工方法，其操作步骤包括：将钨尾矿烘干至水分含量5％以下，筛分后以球磨分级通过闭路磨矿方式实现钨尾矿的超细加工，得到满足粒度要求的钨尾矿细粉。An ultra-fine processing method for preparing wear-resistant materials from tungsten tailings. The operation steps include: drying the tungsten tailings to a moisture content below 5%, sieving, classifying by ball mills, and realizing ultra-fine grinding of the tungsten tailings by means of closed-circuit grinding. Fine processing to obtain tungsten tailings fine powder that meets the particle size requirements.
表3球磨分级工艺参数Table 3 Ball mill classification process parameters
实施例4：Example 4:
一种钨尾矿制备耐磨材料的应用，包括以下步骤：将耐磨材料与树脂按表4配方配料，将混合物均匀搅拌2h制成树脂涂料，喷涂到标准试板上，测试涂料性能见表5。An application of tungsten tailings to prepare wear-resistant materials, including the following steps: mix the wear-resistant materials and resin according to the formula in Table 4, stir the mixture uniformly for 2 hours to make a resin coating, and spray it on a standard test plate. The performance of the test coating is shown in the table 5.
表4涂料配方Table 4 Coating Formulation
表5涂料性能Table 5 Coating Properties
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Cited By (5)
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| 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 |
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| 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 |
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| 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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Application publication date: 20140730 |