CN105032602A - Highly-efficient preparation method of ultra-white quartz sand utilizing vein quartz minerals - Google Patents
Highly-efficient preparation method of ultra-white quartz sand utilizing vein quartz minerals Download PDFInfo
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Abstract
The invention discloses a highly-efficient preparation method of ultra-white quartz sand utilizing vein quartz minerals. The highly-efficient preparation method is applied as follows: vein quartz minerals are subjected to crushing, grinding, desliming, grading, desliming and magnetic concentration and undergo grading complete-flow process based on the principle of more crushing and less grinding, and processes including slassifying and delurrying and segmented magnetic separation. The technological process of the highly-efficient preparation method of ultra-white quartz sand utilizing vein quartz minerals has following beneficial effects: iron impurities and fine silt, having impacts on quality of vein quartz, are well processed so that beneficiation effect of the technological process is enhanced; reliability and adaptability for beneficiation of quartz and vein quartz minerals are improved in order to effectively ensure technological quality of vein quartz minerals; ultra-white sand products by production can satisfy the requirement of the market for high-quality quartz sand; and the technological process has advantages including high processing capability and conservation of energy consumption so as to be cost-effective and eco-friendly.
Description
Technical field
The present invention relates to a kind of preparation method of quartz sand, particularly relate to a kind of method that quartz deposit efficiently prepares ultrawhite quartz sand.
Background technology
Quartz mine is widely used in the industry such as glass, casting, pottery and refractory material, smelting duriron, flux for metallurgy, metallurgy, building, chemical industry, plastics, rubber, abrasive material, filtrate, is important industrial mineral raw material.
Vein quartz is one of important composition of quartz mineral kind, this ore body is milky white, greyish white, white, greasy luster, compact massive, proportion about 2.65, fusing point more than 1700 DEG C, hardness is greater than 7, there is excellent temperature tolerance, resistance to acids and bases, and there is the features such as poor thermal conductivity, high insulation, low bulk and stable chemical property.It is the important advanced industrial basic material of building materials, pottery glass, chemical industry, communication etc.
At present, on market, the iron-holder of common quartzy finished sand is mainly 200-800ppm (millionth is 1ppm), and the quartz sand of 100-200ppm is relatively less, and ultrawhite quartz finished sand within 100ppm is just very rare.Along with the development of industry, the demand of market to the quartz sand material quality of high-quality just progressively increases, particularly fiber optic communication, optical instrument field to iron-holder even lower within 100ppm high-quality ultrawhite quartz finished sand demand increasing.Along with the quartz sand resources of high-quality natural is at present fewer and feweri, meanwhile, quartz sand Mineral Processing Industry is by the impact in region, market, the overall development of industry is by regional restriction, industry branch is little, and technology and capital are difficult to the input attracting more social resources, quartz sand industry technique of preparing backwardness relatively, the relatively simple extensive quartz generally adopted in the industry is eluriated and purifying technique, and the product produced is difficult to ensure to stablize and the quality of high-quality.
Vein quartz is as an important branch of quartz mineral, because its metallogenic feature and excellent physical characteristic determine its huge market value, Given this, be badly in need of the mineralogical property according to vein quartz, combine with production practices, explore a kind of effective, adaptable method utilizing quartz deposit to prepare the ore dressing of ultrawhite quartz sand.
Summary of the invention
The object of the invention is to provide a kind of zero-emission, pollution-free, production efficiency is high, the quartz deposit of applicable large-scale production efficiently prepares the method for ultrawhite quartz sand.
The object of the present invention is achieved like this:
Quartz deposit efficiently prepares a method for ultrawhite quartz sand, and feature is:
A, high pressure roller mill crusher machine, one section of classifying screen classification: the vein quartz raw ore of 5-25mm is sent into single-drive high-pressure roller mill and carries out meticulous fragmentation, enter one section of classifying screen after meticulous fragmentation and carry out classification, + 20 order grade on-the-sieve materials enter follow-up rod mill and carry out grinding operation, and-20 order undersize materials directly enter follow-up one section of desliming bucket sand setting merging and enter one section of hindered settling device;
B, rod milling operation, the classification of one section of desliming bucket :+20 order grade on-the-sieve materials of one section of classifying screen are sent into rod mill and carried out wet milling, wear into ore pulp, enter one section of desliming bucket and carry out one section of desliming classification, the overflow material of one section of desliming bucket directly enters tail mud recovery pond as mine tailing, enters one section of hindered settling device and carry out graded operation to ore deposit after-20 order undersize materials of one section of desliming bucket sand setting and one section of classifying screen merge;
C, the classification of one section of hindered settling device, two sections of desliming bucket desliming operations: the Task-size Controlling of the sand setting material after one section of hindered settling device graded operation at+20 orders, the sand setting material of this granularity directly return the rod milling operation of step B to ore deposit; The Task-size Controlling of the overflow material after one section of hindered settling device graded operation is at-20 orders, and the overflow material of this granularity directly enters two sections of follow-up desliming buckets and carries out desliming operation; The overflow material of two sections of desliming buckets enters tail mud recovery pond as mine tailing, the sand setting material of two sections of desliming buckets enters follow-up two sections of classifying screens and carries out Task-size Controlling operation, obtains+20 order grade on-the-sieve materials of two sections of classifying screens and-20 order undersize materials of two sections of classifying screens;
D, the operation of two sections of classifying screen Task-size Controlling: in order to ensure that the granularity of finished sand is within-20 orders, the sand setting of the oversize of two sections of classifying screens and one of step C section of hindered settling device merges the rod mill returning step B and regrinds to ore deposit, and the undersize material of two sections of classifying screens directly enters follow-up one section of permanent magnetism deironing, two sections of permanent magnetism deironing operations;
E, one section of permanent magnetism deironing, two sections of permanent magnetism deironing operations: one section of permanent magnetism adopts the common permanent-magnet drum type magnetic separator of CTN type, the magnetic field intensity of this magnetic separator is 3000GS, during work, the Magnetic Materials of one section of permanent magnetism directly enters tailing pit as waste residue, and the non-magnetic material of one section of permanent magnetism enters two sections of permanent magnetism and carries out deironing operation; Two sections of permanent magnetism adopt CTN type high field intensity permanent-magnet drum type magnetic separator, the magnetic field intensity of this magnetic separator is 7000GS, the Magnetic Materials of two sections of permanent magnetism merges as waste residue and one section of Magnetic Materials and enters tailing pit, and the non-magnetic material of two sections of permanent magnetism enters follow-up pulsating high gradient magnetic separator with vertical ring and carries out high intensity magnetic separation deironing operation;
F, pulsating high gradient magnetic separator with vertical ring deironing operation: the non-magnetic material of two sections of permanent magnetism enters pulsating high gradient magnetic separator with vertical ring and carries out high intensity magnetic separation deironing operation, the post-job Magnetic Materials of pulsating high gradient magnetic separator with vertical ring deironing enters tailing pit as waste residue, and the post-job non-magnetic material of pulsating high gradient magnetic separator with vertical ring deironing enters three sections of follow-up desliming buckets and carries out desliming operation;
G, the operation of three sections of desliming buckets: after entering three sections of desliming buckets through the post-job non-magnetic material of pulsating high gradient magnetic separator with vertical ring deironing, the overflow material of the overflow material of three sections of desliming buckets and one section of desliming bucket is merged into tail mud and is entered tail mud recovery pond; The sand setting material of three sections of desliming buckets enters two sections of hindered settling devices and carries out finished sand classification;
H, two sections of hindered settling device graded operations: after the sand setting material of three sections of desliming buckets enters two sections of hindered settling devices, through the classification of two sections of hindered settling devices, the granularity of the overflow material of two sections of hindered settling devices is-140 orders, and granularity is that the overflow material of-140 objects two sections of hindered settling devices is as silicon powder finished product raw material; The granularity of the sand setting material of two sections of hindered settling devices is 20-140 order, and granularity is the sand setting material of 20-140 object two sections of hindered settling devices is ultrawhite quartz sand finished product.
Main feature of the present invention is:
1) according to the ore dressing principle of " much broken and lessmill ", by introducing the operation of single-drive high pressure roller mill, directly can produce the quartz sand finished product (quality accounting reaches 30-50%) meeting granularity requirements on the one hand, the feeding granularity into rod mill can be reduced on the other hand, not only increase the disposal ability of rod mill, also greatly reduce power consume, effects of energy saving and emission reduction is obvious;
2) full-flow process is by the desliming operation of three sections, front and back, greatly reduces the primary of vein quartz mineral and secondary mud, has remarkable result to the non magnetic fine fraction impurity removed in vein quartz mineral;
3) according to the feature of irony impurity in vein quartz process, point three stages of magnetic separation de_ironing refinement operations, reject ferromagnetism, medium magnetic, weak magnetism matter impurity successively, reach the object of quartz deposit object height effect de_ironing refinement;
4) two ends hindered settling device operation, object is different, and the operation of one section of hindered settling device controls the upper size boundary of mineral processing circuit effectively; The operation of two sections of hindered settling devices effectively controls the size fraction ranges of finished sand, and produces auxiliary product, for full-range grade control and grading provide guarantee;
5) the present invention fully combines requirement and the feature of vein quartz mineral and products thereof, be fully recognized that each operation section of technological process is on the impact of product quality, emphasis is set about from mineral desliming, grading and iron removal by magnetic separation three aspect, strengthen the process on the irony impurity and thin mud affecting product quality, improve the ore dressing effect of technological process, improve reliability and the adaptability of quartz and the ore dressing of vein quartz mineral, the ore dressing demand of quartz mineral can be met.
The present invention is successfully come into operation in Hubei vein quartz ore dressing processing factory.This factory's vein quartz raw ore iron-holder is 80ppm, and 300,000 tons, year process vein quartz raw ore, 20-140 order main ultrawhite quartz sand iron-holder is 60ppm, and the important technological parameters of this invention is as follows.
Can be analyzed by above-mentioned data, technological process of the present invention strengthens the process on the irony impurity and thin mud affecting vein quartz quality, improve the ore dressing effect of technological process, improve reliability and the adaptability of quartz and the ore dressing of vein quartz mineral, effectively can ensure the technological quality of vein quartz mineral, the super-white sand product produced can meet the demand of market to high-quality quartz sand, and this technological process also to have disposal ability large, save the advantages such as energy consumption, economy is environmental protection again.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail.
Quartz deposit efficiently prepares a method for ultrawhite quartz sand, and feature is:
A, high pressure roller mill crusher machine, one section of classifying screen classification: the vein quartz raw ore of 5-25mm is sent into single-drive high-pressure roller mill and carries out meticulous fragmentation, enter one section of classifying screen after meticulous fragmentation and carry out classification, + 20 order grade on-the-sieve materials enter follow-up rod mill and carry out grinding operation, and one section of desliming bucket sand setting merging that-20 order undersize materials directly enter subsequent step B enters one section of hindered settling device;
B, rod milling operation, the classification of one section of desliming bucket :+20 order grade on-the-sieve materials of one section of classifying screen are sent into rod mill and carried out wet milling, wear into ore pulp, enter one section of desliming bucket and carry out one section of desliming classification, the overflow material of one section of desliming bucket directly enters tail mud recovery pond as mine tailing, enters one section of hindered settling device and carry out graded operation after-20 order undersize materials of one section of desliming bucket sand setting and steps A one section of classifying screen merge;
C, the classification of one section of hindered settling device, two sections of desliming bucket desliming operations: the Task-size Controlling of the sand setting material after one section of hindered settling device graded operation at+20 orders, this material directly return the rod milling operation of step B give ore deposit; The Task-size Controlling of the overflow material after one section of hindered settling device graded operation is at-20 orders, the overflow material of one section of hindered settling device classification directly enters two sections of follow-up desliming buckets and carries out desliming operation, two sections of desliming bucket overflow materials enter tail mud recovery pond as mine tailing, and the sand setting material of two sections of desliming buckets enters follow-up two sections of classifying screens and carries out Task-size Controlling operation;
D, the operation of two sections of classifying screen Task-size Controlling: in order to ensure that the granularity of finished sand is within-20 orders, the sand setting of the oversize of two sections of classifying screens and one of step C section of hindered settling device merges and returns rod mill and regrind, and the undersize material of two sections of classifying screens directly enters follow-up one section of permanent magnetism deironing, two sections of permanent magnetism deironing operations;
E, one section of permanent magnetism deironing, two sections of permanent magnetism deironing operations: the Magnetic Materials of one section of permanent magnetism directly enters tailing pit as waste residue, the non-magnetic material of one section of permanent magnetism enters two sections of permanent magnetism and carries out deironing operation, two sections of permanent magnetism adopt CTN type high field intensity permanent-magnet drum type magnetic separator, the magnetic field intensity of this magnetic separator is 7000GS, the Magnetic Materials of two sections of permanent magnetism merges as waste residue and one section of Magnetic Materials and enters tailing pit, and the non-magnetic material of two sections of permanent magnetism enters follow-up pulsating high gradient magnetic separator with vertical ring and carries out high intensity magnetic separation deironing operation;
F, pulsating high gradient magnetic separator with vertical ring deironing operation: the non-magnetic material of two sections of permanent magnetic motors enters pulsating high gradient magnetic separator with vertical ring and carries out high intensity magnetic separation deironing operation, the post-job Magnetic Materials of pulsating high gradient magnetic separator with vertical ring deironing merges as the permanent magnetism Magnetic Materials of waste residue and step e and enters tailing pit, and the post-job non-magnetic material of pulsating high gradient magnetic separator with vertical ring deironing enters three sections of follow-up desliming buckets and carries out desliming operation;
G, the operation of three sections of desliming buckets: after the post-job non-magnetic material of pulsating high gradient magnetic separator with vertical ring deironing enters three sections of desliming buckets, the overflow material of the overflow material of three sections of desliming buckets and one section of desliming bucket is merged into tail mud and is entered tail mud recovery pond; The sand setting material of three sections of desliming buckets enters two sections of hindered settling devices and carries out finished sand classification;
Two sections of hindered settling device graded operations: after the sand setting material of three sections of desliming buckets enters two sections of hindered settling devices, through the classification of two sections of hindered settling devices, the granularity of the overflow material of two sections of hindered settling devices is-140 orders, and granularity is that the overflow material of-140 objects two sections of hindered settling devices is as silicon powder finished product raw material; The granularity of the sand setting material of two sections of hindered settling devices is 20-140 order, and granularity is the sand setting material of 20-140 object two sections of hindered settling devices is ultrawhite quartz sand finished product.
Claims (1)
1. quartz deposit efficiently prepares a method for ultrawhite quartz sand, it is characterized in that:
High pressure roller mill crusher machine, one section of classifying screen classification: the vein quartz raw ore of 5-25mm is sent into single-drive high-pressure roller mill and carries out meticulous fragmentation, enter one section of classifying screen after meticulous fragmentation and carry out classification, + 20 order grade on-the-sieve materials enter follow-up rod mill and carry out grinding operation, and-20 order undersize materials directly enter follow-up one section of desliming bucket sand setting merging and enter one section of hindered settling device;
Rod milling operation, the classification of one section of desliming bucket :+20 order grade on-the-sieve materials of one section of classifying screen are sent into rod mill and carried out wet milling, wear into ore pulp, enter one section of desliming bucket and carry out one section of desliming classification, the overflow material of one section of desliming bucket directly enters tail mud recovery pond as mine tailing, enters one section of hindered settling device and carry out graded operation to ore deposit after-20 order undersize materials of one section of desliming bucket sand setting and one section of classifying screen merge;
C, the classification of one section of hindered settling device, two sections of desliming bucket desliming operations: the Task-size Controlling of the sand setting material after one section of hindered settling device graded operation at+20 orders, the sand setting material of this granularity directly return the rod milling operation of step B to ore deposit; The Task-size Controlling of the overflow material after one section of hindered settling device graded operation is at-20 orders, and the overflow material of this granularity directly enters two sections of follow-up desliming buckets and carries out desliming operation; The overflow material of two sections of desliming buckets enters tail mud recovery pond as mine tailing, the sand setting material of two sections of desliming buckets enters follow-up two sections of classifying screens and carries out Task-size Controlling operation, obtains+20 order grade on-the-sieve materials of two sections of classifying screens and-20 order undersize materials of two sections of classifying screens;
D, the operation of two sections of classifying screen Task-size Controlling: in order to ensure that the granularity of finished sand is within-20 orders, the sand setting of the oversize of two sections of classifying screens and one of step C section of hindered settling device merges the rod mill returning step B and regrinds to ore deposit, and the undersize material of two sections of classifying screens directly enters follow-up one section of permanent magnetism deironing, two sections of permanent magnetism deironing operations;
E, one section of permanent magnetism deironing, two sections of permanent magnetism deironing operations: one section of permanent magnetism adopts the common permanent-magnet drum type magnetic separator of CTN type, the magnetic field intensity of this magnetic separator is 3000GS, during work, the Magnetic Materials of one section of permanent magnetism directly enters tailing pit as waste residue, and the non-magnetic material of one section of permanent magnetism enters two sections of permanent magnetism and carries out deironing operation; Two sections of permanent magnetism adopt CTN type high field intensity permanent-magnet drum type magnetic separator, the magnetic field intensity of this magnetic separator is 7000GS, the Magnetic Materials of two sections of permanent magnetism merges as waste residue and one section of Magnetic Materials and enters tailing pit, and the non-magnetic material of two sections of permanent magnetism enters follow-up pulsating high gradient magnetic separator with vertical ring and carries out high intensity magnetic separation deironing operation;
F, pulsating high gradient magnetic separator with vertical ring deironing operation: the non-magnetic material of two sections of permanent magnetism enters pulsating high gradient magnetic separator with vertical ring and carries out high intensity magnetic separation deironing operation, the post-job Magnetic Materials of pulsating high gradient magnetic separator with vertical ring deironing enters tailing pit as waste residue, and the post-job non-magnetic material of pulsating high gradient magnetic separator with vertical ring deironing enters three sections of follow-up desliming buckets and carries out desliming operation;
G, the operation of three sections of desliming buckets: after entering three sections of desliming buckets through the post-job non-magnetic material of pulsating high gradient magnetic separator with vertical ring deironing, the overflow material of the overflow material of three sections of desliming buckets and one section of desliming bucket is merged into tail mud and is entered tail mud recovery pond; The sand setting material of three sections of desliming buckets enters two sections of hindered settling devices and carries out finished sand classification;
H, two sections of hindered settling device graded operations: after the sand setting material of three sections of desliming buckets enters two sections of hindered settling devices, through the classification of two sections of hindered settling devices, the granularity of the overflow material of two sections of hindered settling devices is-140 orders, and granularity is that the overflow material of-140 objects two sections of hindered settling devices is as silicon powder finished product raw material; The granularity of the sand setting material of two sections of hindered settling devices is 20-140 order, and granularity is the sand setting material of 20-140 object two sections of hindered settling devices is ultrawhite quartz sand finished product.
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| CN105880006A (en) * | 2016-03-17 | 2016-08-24 | 昆明高斯特科技有限公司 | Method for preparing high-quality quartz sand raw material by flat-plate magnetic separator |
| CN106000622A (en) * | 2016-06-06 | 2016-10-12 | 赣州金环磁选设备有限公司 | Color-magnetic separation combined sorting method for high-purity quartz sand produced through quartzite |
| CN107694733A (en) * | 2017-11-22 | 2018-02-16 | 成都大宏立机器股份有限公司 | Modularization disintegrating apparatus and building aggregate crushing system |
| CN108745639A (en) * | 2018-05-15 | 2018-11-06 | 赣州金环磁选设备有限公司 | A kind of method of floating spodumene tailing resource recycling |
| CN108940533A (en) * | 2018-07-07 | 2018-12-07 | 河源市极致知管信息科技有限公司 | A kind of preparation method of quartz sand |
| CN110038719A (en) * | 2019-04-22 | 2019-07-23 | 赣州金环磁选设备有限公司 | A kind of beneficiation method of electrical stone ore comprehensive utilization |
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| CN108745639A (en) * | 2018-05-15 | 2018-11-06 | 赣州金环磁选设备有限公司 | A kind of method of floating spodumene tailing resource recycling |
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| CN108940533A (en) * | 2018-07-07 | 2018-12-07 | 河源市极致知管信息科技有限公司 | A kind of preparation method of quartz sand |
| CN110038719A (en) * | 2019-04-22 | 2019-07-23 | 赣州金环磁选设备有限公司 | A kind of beneficiation method of electrical stone ore comprehensive utilization |
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Address after: 341000 Jiangxi province Zhanggong District of Ganzhou City, Shahe Industrial Park Patentee after: Ganzhou Jinhuan magnetic separation technology and Equipment Co.,Ltd. Address before: 341000 Jiangxi province Zhanggong District of Ganzhou City, Shahe Industrial Park Patentee before: SLON MAGNETIC SEPARATOR Ltd. |