CN213255062U - Pre-sorting device for total tailings of vanadium titano-magnetite - Google Patents
Pre-sorting device for total tailings of vanadium titano-magnetite Download PDFInfo
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- CN213255062U CN213255062U CN202022110170.9U CN202022110170U CN213255062U CN 213255062 U CN213255062 U CN 213255062U CN 202022110170 U CN202022110170 U CN 202022110170U CN 213255062 U CN213255062 U CN 213255062U
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Abstract
The utility model discloses a device of sorting in advance of vanadium titano-magnetite total tailing, include that the trommel, swirler, one section that connect to set up according to certain process flow assist sieve, one section magnet separator, ball mill, two-section assist sieve, two-section magnet separator, three-section magnet separator and spiral chute that shakes. The whole device adopts the cyclone group to separate the over-grinding part generated by the front-end process in the vanadium-titanium magnetite tailings in advance, so that 30-50% of non-grinding target minerals are reduced, the ball-milling power consumption is greatly optimized, and the load of equipment is reduced; non-magnetic gangue minerals entering the ball mill and most dissociated materials after ball milling discharging are removed in advance in a screening-ball milling-screening mode in the midway, and valuable materials in the removed materials are recovered again, so that enterprise benefits are improved; the whole device is pure physical screening, so that the influence on the environment is avoided, and the whole device can be well matched with the subsequent reselection process flow.
Description
Technical Field
The utility model relates to a mineral processing equipment field especially relates to a device is selected separately in advance of total tailing of vanadium titano-magnetite.
Background
Panzhihua is the main mineral-forming zone of vanadium titano-magnetite in China, contains abundant vanadium titano-magnetite resources and is one of the important production areas of similar mineral deposits in the world. Resource development over the last fifty years has produced a huge amount of solid waste, of which tailings are one of the important solid waste. The tailing stockpiling not only occupies a large amount of land resources and causes great influence on the environment, but also has great potential safety hazard.
However, with the increase of the mining depth of the Panxi vanadium titano-magnetite, the properties of the vanadium titano-magnetite are also greatly changed, the currently researched monomer dissociation particle size of the Panxi vanadium titano-magnetite reaches the fine particle size grade (-below 0.045 mm), and in order to obtain high-quality titanium concentrate, firstly, a large amount of gangue cast is solved, the vanadium titano-magnetite is difficult to process by adopting the traditional process, and the recycling of tailings needs more reasonable and effective process collocation.
In recent thirty years, relevant scientific research and production units form the mainstream titanium recovery process flow of strong magnetism and flotation through continuous research and exploration, and both raw ores and tailings can be applied. Practice proves that the process has high titanium concentrate recovery rate and good titanium concentrate quality, and is widely adopted by industrial enterprises. However, a lot of problems are exposed in the production, such as pollution of the flotation reagent to the environment, long flow, high operation control cost and large influence of the flotation reagent price fluctuation on the product cost.
At present, much research is carried out on ilmenite recovery from the main tail in China, some performances are achieved, but no breakthrough progress is made, most enterprises still select a gravity magnetic-drawing concentrating machine or a high-gradient strong magnetic concentrating machine and then demagnetize the ilmenite to enter a spiral chute, but the effect of a demagnetizer in actual working conditions is not obvious, the rear-end process is still greatly influenced by magnetic agglomeration caused by strong magnetism, and the recovery rate of the ilmenite of a fine particle grade of the industrial enterprises is still at a lower level compared with that of a coarse particle grade.
SUMMERY OF THE UTILITY MODEL
For overcoming the defects of high cost, environmental pollution, longer flow and the like of the existing ilmenite recovery process, the utility model aims to solve the technical problems that: the pre-sorting device for the vanadium titano-magnetite total tailings is green and environment-friendly and high in recovery rate.
The utility model provides a technical scheme that its technical problem adopted is:
a pre-sorting device for vanadium titano-magnetite total tailings comprises a rotary screen, a cyclone, a first-section auxiliary vibration screen, a first-section magnetic separator, a ball mill, a second-section auxiliary vibration screen, a second-section magnetic separator, a third-section magnetic separator and a spiral chute which are connected and arranged according to a process flow;
a screen underflow outlet of the rotary screen is communicated with the cyclone, and a screen overflow outlet is communicated with the tailing pond;
an overflow outlet of the cyclone is communicated with the three-section magnetic separator, and a sand setting outlet is communicated with the auxiliary vibrating screen;
an oversize outlet of the first-section auxiliary vibrating screen is communicated with a first-section magnetic separator, an undersize outlet is communicated with a ball mill, a magnetic outlet of the first-section magnetic separator is communicated with the ball mill, and a non-magnetic outlet is communicated with a tailing pond;
a material outlet of the ball mill is communicated with a second-stage auxiliary vibrating screen, an oversize outlet of the second-stage auxiliary vibrating screen is communicated with a second-stage magnetic separator, an undersize outlet is communicated with a third-stage magnetic separator, a magnetic material outlet of the second-stage magnetic separator is communicated with the ball mill, and a non-magnetic material outlet is communicated with a tailing pond;
a magnetic substance outlet of the three-section magnetic separator is communicated with the concentrate tank, and a non-magnetic substance outlet is communicated with the spiral chute;
and a light product outlet of the spiral chute is communicated with the titanium ore pool, and a heavy product outlet is communicated with the tailing pool.
Further, the connection arrangement according to the process flow comprises the transfer connection of materials through a pipeline, a chute, a conveying belt or a transfer vehicle.
Furthermore, the aperture range of the drum screen is 1.00-2.00 mm.
Further, the three-section magnetic separator is a wet type weak magnetic separator, and the magnetic field intensity is 1800-3200 GS.
Further, the size of a sieve hole of the first section of auxiliary vibrating sieve is 0.18-0.43 mm, the first section of magnetic separator is a wet type strong magnetic separator, and the magnetic field intensity is 9000-13000 GS.
Further, the size of a sieve pore of the two-section auxiliary vibrating sieve is 0.10-0.16 mm, the two-section magnetic separator is a wet type strong magnetic separator, and the magnetic field intensity is 7000-11000 GS.
The utility model has the advantages that:
1. the mineral separation pretreatment device for the vanadium titano-magnetite tailings is purely physical, does not need flotation and reverse flotation processes, avoids the influence of flotation reagents on the environment, and can be well matched with the subsequent gravity separation process flow;
2. the over-grinding part generated by the front-end process in the vanadium titano-magnetite tailings is separated by adopting a cyclone group in advance, so that 30-50% of non-grinding target minerals are reduced, the ball-milling power consumption is greatly optimized, and the load of equipment is reduced;
3. the device adopts a screening-ball milling-screening mode to pre-remove non-dissociated minerals entering the ball milling and non-magnetic gangue minerals in most dissociated materials after ball milling discharging, and re-recovers valuable materials in the pre-removed materials, thereby improving enterprise benefits;
4. the material passing through the strong magnetism can be physically demagnetized only in the throwing and smashing grinding process during the ball milling operation, the trouble caused by the magnetic agglomeration phenomenon due to the adoption of the gravity separation process at the rear end is avoided, the cost of the demagnetizer is saved, higher benefits are brought to enterprises, and very favorable conditions are provided for the subsequent gravity separation process.
Drawings
Fig. 1 is a schematic diagram of the structure of the present invention.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1, the pre-separation device for vanadium titano-magnetite total tailings provided by the present application comprises a rotary screen, a cyclone, a first-stage auxiliary vibrating screen, a first-stage magnetic separator, a ball mill, a second-stage auxiliary vibrating screen, a second-stage magnetic separator, a third-stage magnetic separator and a spiral chute which are connected according to a process flow;
a screen underflow outlet of the rotary screen is communicated with the cyclone, and a screen overflow outlet is communicated with the tailing pond;
an overflow outlet of the cyclone is communicated with the three-section magnetic separator, and a sand setting outlet is communicated with the auxiliary vibrating screen;
an oversize outlet of the first-section auxiliary vibrating screen is communicated with a first-section magnetic separator, an undersize outlet is communicated with a ball mill, a magnetic outlet of the first-section magnetic separator is communicated with the ball mill, and a non-magnetic outlet is communicated with a tailing pond;
a material outlet of the ball mill is communicated with a second-stage auxiliary vibrating screen, an oversize outlet of the second-stage auxiliary vibrating screen is communicated with a second-stage magnetic separator, an undersize outlet is communicated with a third-stage magnetic separator, a magnetic material outlet of the second-stage magnetic separator is communicated with the ball mill, and a non-magnetic material outlet is communicated with a tailing pond;
a magnetic substance outlet of the three-section magnetic separator is communicated with the concentrate tank, and a non-magnetic substance outlet is communicated with the spiral chute;
and a light product outlet of the spiral chute is communicated with the titanium ore pool, and a heavy product outlet is communicated with the tailing pool.
The connection arrangement according to the process flow refers to the transfer connection of materials through a pipeline, a chute, a conveying belt or a transfer vehicle.
The process of adopting the device of the application to carry out the pre-separation of the tailings is as follows:
a. separating impurities from the vanadium titano-magnetite tailings by a drum sieve to obtain a target object; b, enabling the target object in the step a to pass through a cyclone to obtain an overflow material and a sand setting material; c. b, magnetically separating the overflow material in the step b by a three-section magnetic separator to obtain iron ore concentrate and a material entering a spiral chute; d. b, enabling the settled sand material in the step b to pass through a first-stage auxiliary vibrating screen, carrying out magnetic separation on oversize materials through a first-stage magnetic separator, directly enabling undersize materials to enter a ball mill, enabling nonmagnetic materials after magnetic separation to enter tailings, and enabling magnetic materials to enter the ball mill; e. the ball milling discharge is passed through a two-stage auxiliary vibrating screen, oversize materials are magnetically separated through a two-stage magnetic separator, undersize materials are magnetically separated through a three-stage magnetic separator to obtain iron ore concentrate and materials entering a spiral chute, nonmagnetic minerals enter tailings, and magnetic minerals return to a ball mill; f. the light product passing through the spiral chute is titanium middling, and the heavy product is tailings.
This process method is to the total tailings of vanadium titano-magnetite iron dressing titanium selection in Panxi area as the raw materials, under the prerequisite that does not use flotation process, relies on "magnetic separation + gravity separation" mode to accomplish the preliminary grading of tailings completely, and brings the puzzlement to follow-up production in order to eliminate the magnetic agglomeration phenomenon that brings owing to strong magnetism, the utility model discloses only rely on strong magnetism to sweep to a small part of target mineral, this part target mineral passes through strong magnetism after, only can accomplish the physics demagnetization in the ball-milling process section goes on.
In order to further optimize the process flow, the following optimization scheme is adopted:
the aperture range of the drum sieve is 1.00-2.00 mm, the aperture can achieve the purpose of impurity pre-throwing, the total tailings of the vanadium titano-magnetite entering the subsequent process can be purer, and the burden of impurities on the system is reduced.
In actual production, more materials with the particle size fraction of more than 0.18-0.43 mm without ball milling and more materials with the particle size fraction of more than 0.10-0.16 mm after ball milling are gangue minerals, but contain Fe and TiO2The effective target material still accounts for 5-25% of the material in the size fraction, and the effective target material can be effectively recycled after being subjected to strong magnetic scavenging.
Based on the research, the size of the sieve hole of the first section of the auxiliary vibrating sieve is set to be 0.18-0.43 mm, the first section of the magnetic separator is a wet type strong magnetic separator, and the magnetic field intensity is 9000-13000 GS. The size of the sieve mesh of the two-section auxiliary vibrating sieve is 0.10-0.16 mm, the two-section magnetic separator is a wet type strong magnetic separator, and the magnetic field intensity is 7000-11000 GS. By adopting the method, the materials can be fully recycled.
And (3) the overflow materials separated by the cyclone and undersize materials after screening-ball milling-screening are all materials with extremely small particles, and the fine iron ore can be screened out by a wet type weak magnetic separator with the magnetic field intensity of 1800-3200 GS.
The first embodiment is as follows:
the iron-titanium-selecting total tailings in a certain ore area of Panzhihua are pre-sorted by the device, the TiO2 grade obtained by testing raw materials is 5.68 percent, the TFe grade is 16.93 percent, the tailings are firstly separated by a drum screen, then the minerals are subjected to size fraction sorting by a cyclone group, coarse-size minerals are screened by a first 80-mesh screen, part of gangue minerals are removed by oversize products and then are recovered by 11500GS strong magnetic scavenging, undersize and strong magnetic recovery minerals enter a ball mill for grinding, ball-milling discharge materials are screened by a second 120-mesh screen, part of gangue minerals are removed by oversize products again and then are returned to the ball mill for continuously participating in grinding, and undersize products are subjected to twice GS 2600 and 1500 weak magnetic separation to obtain iron fine powder with the grade of 59.08 percent and TiO2 16.44 percent spiral chute materials.
So far, the visible TiO is obtained by the pretreatment method of the utility model2TiO is obtained after 5.68 percent of total tailings with grade pass through the system2The grade of 16.44 percent of materials and the grade of TFe 16.93 percent of materials are improved to qualified 59.08 percent of fine iron powder, and the effect is obvious.
Claims (6)
1. The utility model provides a device is presorted to total tailing of vanadium titano-magnetite which characterized by: the device comprises a rotary screen, a cyclone, a first-stage auxiliary vibration screen, a first-stage magnetic separator, a ball mill, a second-stage auxiliary vibration screen, a second-stage magnetic separator, a third-stage magnetic separator and a spiral chute which are connected and arranged according to the process flow;
a screen underflow outlet of the rotary screen is communicated with the cyclone, and a screen overflow outlet is communicated with the tailing pond;
an overflow outlet of the cyclone is communicated with the three-section magnetic separator, and a sand setting outlet is communicated with the auxiliary vibrating screen;
an oversize outlet of the first-section auxiliary vibrating screen is communicated with a first-section magnetic separator, an undersize outlet is communicated with a ball mill, a magnetic outlet of the first-section magnetic separator is communicated with the ball mill, and a non-magnetic outlet is communicated with a tailing pond;
a material outlet of the ball mill is communicated with a second-stage auxiliary vibrating screen, an oversize outlet of the second-stage auxiliary vibrating screen is communicated with a second-stage magnetic separator, an undersize outlet is communicated with a third-stage magnetic separator, a magnetic material outlet of the second-stage magnetic separator is communicated with the ball mill, and a non-magnetic material outlet is communicated with a tailing pond;
a magnetic substance outlet of the three-section magnetic separator is communicated with the concentrate tank, and a non-magnetic substance outlet is communicated with the spiral chute;
and a light product outlet of the spiral chute is communicated with the titanium ore pool, and a heavy product outlet is communicated with the tailing pool.
2. The pre-sorting device of the total tailings of vanadium titano-magnetite as claimed in claim 1, which is characterized in that: the connection arrangement according to the process flow comprises the transfer connection of materials through a pipeline, a chute, a conveying belt or a transfer vehicle.
3. The pre-sorting device of the total tailings of vanadium titano-magnetite as claimed in claim 1, which is characterized in that: the aperture range of the drum screen is 1.00-2.00 mm.
4. The pre-sorting device of the total tailings of vanadium titano-magnetite as claimed in claim 1, which is characterized in that: the three-section magnetic separator is a wet low-intensity magnetic separator, and the magnetic field intensity is 1800-3200 GS.
5. The pre-sorting device of the total tailings of vanadium titano-magnetite as claimed in claim 1, which is characterized in that: the size of the sieve pore of the first section of auxiliary vibration sieve is 0.18-0.43 mm, the first section of magnetic separator is a wet type strong magnetic separator, and the magnetic field intensity is 9000-13000 GS.
6. The pre-sorting device of the total tailings of vanadium titano-magnetite as claimed in claim 1, which is characterized in that: the size of the sieve mesh of the two-section auxiliary vibrating sieve is 0.10-0.16 mm, the two-section magnetic separator is a wet type strong magnetic separator, and the magnetic field intensity is 7000-11000 GS.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022110170.9U CN213255062U (en) | 2020-09-23 | 2020-09-23 | Pre-sorting device for total tailings of vanadium titano-magnetite |
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| CN202022110170.9U CN213255062U (en) | 2020-09-23 | 2020-09-23 | Pre-sorting device for total tailings of vanadium titano-magnetite |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114716126A (en) * | 2022-03-29 | 2022-07-08 | 黄道驰 | Environment-friendly purification comprehensive utilization and mineral recovery process for sand making tailings |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114716126A (en) * | 2022-03-29 | 2022-07-08 | 黄道驰 | Environment-friendly purification comprehensive utilization and mineral recovery process for sand making tailings |
| CN114716126B (en) * | 2022-03-29 | 2023-09-29 | 黄道驰 | Environment-friendly purification comprehensive utilization and mineral recovery process for sand making tail mud |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20230801 Address after: 617000 No. 26, Xinjiu Avenue, Yanbian Vanadium and Titanium Industry Development Zone, Hongge Town, Yanbian County, Panzhihua, Sichuan Province; No. 20, Mahonggou Group, Pinggu Village, Xinjiu Township, Yanbian County Patentee after: Yanbian Zaixing Vanadium Titanium Co.,Ltd. Patentee after: Panzhihua Youwei Technology Co.,Ltd. Patentee after: Chengdu Tangyuan Energy Technology Co.,Ltd. Address before: 617000 4th floor, block D, 8 Olympic road north, East District, Panzhihua City, Sichuan Province Patentee before: Panzhihua Youwei Technology Co.,Ltd. Patentee before: Yanbian Zaixing Vanadium Titanium Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 617000 No. 26, Xinjiu Avenue, Yanbian Vanadium and Titanium Industry Development Zone, Hongge Town, Yanbian County, Panzhihua, Sichuan Province; No. 20, Mahonggou Group, Pinggu Village, Xinjiu Township, Yanbian County Patentee after: Yanbian Zaixing Vanadium Titanium Co.,Ltd. Patentee after: Panzhihua Youwei Technology Co.,Ltd. Patentee after: Sichuan Panxi Vanadium Titanium Energy Technology Co.,Ltd. Address before: 617000 No. 26, Xinjiu Avenue, Yanbian Vanadium and Titanium Industry Development Zone, Hongge Town, Yanbian County, Panzhihua, Sichuan Province; No. 20, Mahonggou Group, Pinggu Village, Xinjiu Township, Yanbian County Patentee before: Yanbian Zaixing Vanadium Titanium Co.,Ltd. Patentee before: Panzhihua Youwei Technology Co.,Ltd. Patentee before: Chengdu Tangyuan Energy Technology Co.,Ltd. |