CN211865355U - Phosphorite does not have useless processing system that handles - Google Patents
Phosphorite does not have useless processing system that handles Download PDFInfo
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- CN211865355U CN211865355U CN202020016764.0U CN202020016764U CN211865355U CN 211865355 U CN211865355 U CN 211865355U CN 202020016764 U CN202020016764 U CN 202020016764U CN 211865355 U CN211865355 U CN 211865355U
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Abstract
The utility model provides a phosphorite does not have useless processing system that handles, include: the fixed grid sieve is used for pre-sieving raw ores, and undersize fine particle materials are collected by the finished product bin and the concentrate bin; the primary selection vibrating screening mechanism is arranged at the downstream of the fixed grid sieve and is used for crushing and sorting oversize materials of the fixed grid sieve into materials to be sorted and concentrate materials, and the concentrate materials are collected by the concentrate bin; the dry separation mechanism is arranged at the downstream of the primary separation vibration screening mechanism and is used for performing dry separation and mineral separation on the material to be separated, separating concentrate from tailings, and collecting the obtained concentrate from the concentrate bin; and the tailing vibrating screening mechanism is arranged at the downstream of the dry separation mechanism and is used for crushing and separating tailings and preparing the machine-made sand. The utility model discloses a process flow is simple, the operation of being convenient for, low in production cost, and the phosphorus ore rate of recovery is high moreover, easily industrial production, and is little to environmental pollution, belongs to environment and ecological friendly ore dressing system.
Description
Technical Field
The invention belongs to the technical field of phosphorite beneficiation, and particularly relates to a separation system for layered and wide banded phosphorite in Yichang areas.
Background
Yichang phosphate rock is one of seven big phosphate rock areas in Hubei province, and the reserve of phosphate rock is the first in Hubei province. Yichang phosphate ore can be divided into three layers from top to bottom according to the natural type and grade of ore, namely, lower lean ore, middle rich ore and upper lean ore to form an ore layer structure of 'two poor ores with one rich'. Ore industry type: the upper lean ore is carbonate type, the lower lean ore is silicate type, the whole layer is mixed type, and the average grade is about 22.20%.
The development of Yichang phosphate rock plays an important role in promoting regional economic development and accelerating dearth and enrichment of people in mountainous areas, but a series of problems are also exposed. Firstly, the environment protection situation is severe, the environment protection policy is severe, and the contradiction between the phosphorite development and utilization and the local area environment protection is prominent. And the Yichang middle-low grade phosphate ore is rich in ore and less in ore, and the produced phosphate ore belongs to aphanitic collophanite, so that the ore dressing difficulty is high and the cost is high. Because of the requirement of environmental protection policy, flotation cannot be adopted in Yichang regions. If the heavy medium beneficiation mode is adopted for beneficiation, the beneficiation effect is not ideal. The low price and low beneficiating profit of the medium and low grade phosphorite are difficult to excite the enthusiasm of mining enterprises, and the mineral processing enterprises are difficult to survive if the purchase price of raw ore is improved, so the development and utilization of the medium and low grade phosphorite are influenced. In addition, the condition of water pollution also exists in the heavy medium beneficiation, a water treatment device is additionally arranged in a heavy medium beneficiation plant, the beneficiation cost is also improved, the cost pressure is increased for enterprises, and the enthusiasm of developing low-grade phosphorite resources in the enterprises is influenced.
According to the requirements of green mine construction in the chemical industry, a filling mining method is preferably adopted for underground mining, so that the resource recovery rate can be improved, the surface deformation can be effectively controlled, and secondary geological disasters can be reduced. At present, the mining method of Yichang phosphate mine mainly adopts a room-pillar method and a comprehensive method, and in recent years, part of mines gradually adopt a cemented filling mining method but are not used in a large area. In Yichang phosphate rock areas, the optional filling materials comprise waste rocks and tailings, few mine enterprises with ore dressing plants are in the phosphate rock areas, in-sea exploitation is mostly adopted, and the quantity of the tailings and the waste rocks is limited, so that the large-area popularization of a filling mining method in the Yichang phosphate rock areas is limited.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a phosphorus ore does not have useless processing system, avoid adopting the flotation mode ore dressing on the one hand, reduce and stop water pollution even, the cubic tailing that on the other hand elected can regard as thick, the fine fraction material that fills in the pit after handling, and the useless technology of phosphorus ore processing is realized to the totality.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a phosphorite does not have useless processing system that handles which characterized in that includes:
the fixed grid sieve is used for pre-sieving raw ores, and undersize fine particle materials are collected by the finished product bin and the concentrate bin;
the primary selection vibrating screening mechanism is arranged at the downstream of the fixed grid sieve and is used for crushing and sorting oversize materials of the fixed grid sieve into materials to be sorted and concentrate materials, and the concentrate materials are collected by the concentrate bin;
the dry separation mechanism is arranged at the downstream of the primary separation vibration screening mechanism and is used for performing dry separation and mineral separation on the material to be separated, separating concentrate from tailings, and collecting the obtained concentrate from the concentrate bin;
and the tailing vibrating screening mechanism is arranged at the downstream of the dry separation mechanism and is used for crushing and separating tailings and preparing the machine-made sand.
The phosphorite do not have useless processing system of handling, wherein, primary election vibration screening mechanism includes:
the jaw crusher is used for crushing the oversize material of the fixed grid sieve;
the first vibration screening machine is arranged at the downstream of the jaw crusher and used for screening crushed materials and dividing the materials into reprocessed materials, the materials to be sorted and the concentrate materials according to the granularity of the materials from large to small;
a cone crusher having an input end into which the reprocessed material enters and an output end connected to the first vibratory screening machine.
The phosphorite do not have useless processing system of handling, wherein, primary election vibration screening mechanism is in jaw crusher's upper reaches have still arranged:
the buffering ore bin is used for collecting oversize materials of the fixed grid sieve;
and the first vibrating feeder is used for uniformly conveying the materials in the buffering ore bin to the jaw crusher.
The phosphorus ore do not have useless processing system of handling, wherein, dry separation mechanism includes:
the second vibrating feeder is used for uniformly conveying the materials to be sorted;
the weighing feeder is arranged at the downstream of the second vibrating feeder and is used for controlling the material supply speed conveyed to the downstream;
and the intelligent photoelectric dry-type concentrator is arranged at the downstream of the weighing and feeding machine and is used for separating the concentrate in the material to be separated from the tailings.
The phosphorite does not have useless processing system that handles, wherein, dry separation mechanism still arranges buffer hopper in the upper reaches of second vibrating feeder, it is used for collecting wait to sort the material.
The phosphorus ore do not have useless processing system of handling, wherein, tailing vibration screening mechanism includes:
the hammer type shaping crusher is used for mechanically making sand for the tailings to obtain machine-made sand;
and the second vibrating screening machine is arranged at the downstream of the hammer type shaping crusher and is used for screening the machine-made sand according to different particle sizes, and the machine-made sand with different particle sizes is collected by using different sand bins.
The phosphorite do not have useless processing system of handling, wherein, tailing shale shaker divides the mechanism still has arranged at hammer shaping breaker's upstream:
the separation hopper is used for collecting the tailings;
and the tailing feeder is arranged at the downstream of the distributing hopper and is used for conveying the tailings to the downstream.
The utility model discloses a process flow is simple, the operation of being convenient for, low in production cost, and the phosphorus ore rate of recovery is high moreover, easily industrial production, and is little to environmental pollution, belongs to environment and ecological friendly ore dressing system.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a flow chart of the present invention.
Description of reference numerals: a conveying device 1; fixing the lattice sieve 2; a finished product bin 3; a concentrate bin 4; a buffer ore bin 5; a first vibrating feeder 6; a jaw crusher 7; a first vibratory screening machine 8; a cone crusher 9; a buffer funnel 10; a second vibratory feeder 11; a weighing feeder 12; an intelligent photoelectric dry concentrator 13; a dispensing hopper 14; a tailings feeder 15; a hammer-type shaping crusher 16; a second vibratory screening machine 17; a gravel silo 18.
Detailed Description
As shown in figure 1, the utility model provides a phosphorus ore does not have useless processing system that handles, include:
a conveyor 1, such as a truck, for conveying mined ore;
the fixed grid sieve 2 is used for pre-sieving the raw ore, and undersize fine particle materials (the particle size is less than or equal to 25mm) are collected by the finished product bin 3 and the concentrate bin 4;
primary election vibration screening mechanism is used for right the material is broken and is selected separately on the sieve of fixed grid sieve 2, and it includes: buffering ore bin 5, first vibrating feeder 6, jaw crusher 7, first vibrating screen 8 and cone crusher 9, wherein:
the buffering ore bin 5 is used for collecting oversize materials of the fixed grid sieve 2;
the first vibrating feeder 6 is used for uniformly conveying the materials in the buffer ore bin 5;
the jaw crusher 7 is arranged at the downstream of the first vibrating feeder 6 and is used for crushing the materials conveyed by the vibrating feeder;
the first vibrating screening machine 8 is arranged at the downstream of the jaw crusher 7 and used for screening crushed materials and dividing the crushed materials into reprocessed materials (>40mm), materials to be sorted (10-40mm) and concentrate materials (0-10mm) according to the granularity of the materials from large to small; concentrate materials are collected by the concentrate bin 4;
the cone crusher 9, the input end of which is accessible for the reprocessing material, and the output end of which is connected to the first vibratory screening machine 8;
the dry separation mechanism is used for performing dry separation and ore separation on the materials with the granularity within a preset range, which are processed by the primary separation vibration screening mechanism, and comprises: buffer hopper 10, second vibrating feeder 11, batcher 12 and intelligent photoelectricity dry concentrator 13 weigh, wherein:
the buffer hopper 10 is used for collecting the materials to be sorted provided by the first vibrating screening machine 8;
the second vibrating feeder 11 is arranged at the downstream of the buffer hopper 10 and used for uniformly conveying the materials in the buffer hopper 10;
the weighing feeder 12 is arranged at the downstream of the second vibrating feeder 11 and is used for controlling the material supply speed conveyed downstream;
the intelligent photoelectric dry-type concentrating machine 13 is an existing mechanism, irradiates a material with X-ray, intelligently analyzes an obtained X-ray image, divides each ore area into concentrate or tailings according to a set concentrating standard, separates the concentrate from the tailings by an air injection device on a conveying path, and collects the obtained concentrate by the concentrate bin 4;
tailings vibrating screening mechanism for carry out breakage and sorting to the tailings, it includes: divide hopper 14, tailing batcher 15, hammer shaping breaker 16 and second vibratory screening machine 17, wherein:
the separation hopper 14 is arranged at the downstream of the intelligent photoelectric dry-type concentrating machine 13 and is used for collecting tailings separated from the intelligent photoelectric dry-type concentrating machine 13;
the tailings feeder 15 is arranged at the downstream of the distributing hopper 14 and is used for conveying tailings to the downstream;
the hammer type shaping crusher 16 is arranged at the downstream of the tailing feeder 15 and is used for mechanically making sand for tailings to obtain machine-made sand;
and the second vibrating screening machine 17 is arranged at the downstream of the hammer type shaping crusher 16, screens the machine-made sand according to different granularity, for example, the machine-made sand can be classified into a 0-5mm grade, a 5-10mm grade and a 10-40mm grade, and aiming at different grades of machine-made sand, different gravel bins 18 are used for collecting the machine-made sand, and the machine-made sand is finally used for underground filling or long-time external selling.
As shown in fig. 2, the utility model is used as follows:
(1) pre-screening mined raw ores to obtain undersize fine particle materials and oversize materials;
(2) according to the occurrence state of Yichang phosphate ore, the fine granular material under the sieve is relatively enriched in high-grade phosphate ore, P2O5The grade can reach 25%. Undersize fine particle materials can be directly sold as commodities, and can also be subjected to ore mixing treatment according to the step (6);
(3) crushing the oversize material obtained in the step (1) to enable the crushed product to reach a preset granularity;
(4) screening the crushed product obtained in the step (3) to obtain undersize fine particle materials and oversize materials;
(5) feeding the oversize material obtained in the step (4) into an intelligent photoelectric dry-type ore separator 13 for dry-type ore separation to obtain concentrate and tailings;
(6) mixing the undersize fine particle materials obtained in the step (2), the undersize fine particle materials obtained in the step (3) and the concentrate obtained in the step (5) to obtain final concentrate of the process, and finally obtaining concentrate P2O5The grade can reach 28 percent or more, and the product can be directly sold as a phosphorite II grade product;
(7) sending the tailings obtained in the step (5) to a hammer type shaping crusher 16 for mechanical sand making;
(8) and (4) grading the machine-made sand obtained in the step (7), screening out coarse particles as underground filling coarse aggregates, and screening out fine particles as underground filling fine aggregates, wherein the machine-made sand can also be sold as sand materials.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a technology is selected separately to middle and low grade phosphorus ore at first screens out the fine grit level granule in the raw ore through screening in advance, combines the geological structure characteristic of phosphorus ore stratiform and strip column structure, enriches partial phosphorus ore in advance, has improved the rate of recovery of whole device, has reduced the handling capacity of follow-up technology to practice thrift the energy consumption, reduction in production cost.
The utility model discloses a broken flow replaces the ball-milling of traditional handicraft to handle, goes into through hierarchical screening control and selects the ore granularity, adopts intelligent photoelectricity dry-type concentrator 13 to select the ore separately, obtains the phosphate concentrate commodity ore. The recovery rate of the phosphorite is improved to the maximum extent, and the whole process does not need water system facilities and only needs compressed air. After the dust-containing waste gas is treated by the bag type dust collector, the requirement of environmental protection emission index can be met, and the process has no environmental protection problem or risk. The intelligent dry separation process has mature technology, simple and reliable device and good economy, can effectively reduce the total cost of mineral processing, and increases the comprehensive benefits of enterprises.
The tailings after intelligent dry separation enter machine-made sand equipment to prepare coarse and fine aggregates of a filling process to be directly filled underground, so that a waste-free process for processing phosphorite is realized. In addition, the machine-made sand made from the massive tailings can be sold as building aggregate in the market according to the market condition, thereby not only solving the problem of environmental pollution caused by the tailings, but also solving the problem of building aggregate resources.
Through experimental detection, adopt the utility model provides a behind device and the technology, the rate of recovery of phosphorus ore is 87.00%, and the device energy consumption is 14.0kW.h/t raw ore, and the device water consumption is zero, and device running cost is 17.50 yuan/t raw ore.
The utility model discloses can be with the well low-grade phosphorus ore of mine extraction, low-grade barren rock even, handle through intelligence dry separation technology, just can select the coarse concentrate of commodity, produce the considerable economic value of profit to belong to environment and ecological friendly ore dressing technology, have the significance to the sustainable development of china's economy.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. The utility model provides a phosphorite does not have useless processing system that handles which characterized in that includes:
the fixed grid sieve is used for pre-sieving raw ores, and undersize fine particle materials are collected by the finished product bin and the concentrate bin;
the primary selection vibrating screening mechanism is arranged at the downstream of the fixed grid sieve and is used for crushing and sorting oversize materials of the fixed grid sieve into materials to be sorted and concentrate materials, and the concentrate materials are collected by the concentrate bin;
the dry separation mechanism is arranged at the downstream of the primary separation vibration screening mechanism and is used for performing dry separation and mineral separation on the material to be separated, separating concentrate from tailings, and collecting the obtained concentrate from the concentrate bin;
and the tailing vibrating screening mechanism is arranged at the downstream of the dry separation mechanism and is used for crushing and separating tailings and preparing the machine-made sand.
2. The phosphorus ore no-waste treatment processing system according to claim 1, wherein the primary selection vibrating screening mechanism comprises:
the jaw crusher is used for crushing the oversize material of the fixed grid sieve;
the first vibration screening machine is arranged at the downstream of the jaw crusher and used for screening crushed materials and dividing the materials into reprocessed materials, the materials to be sorted and the concentrate materials according to the granularity of the materials from large to small;
a cone crusher having an input end into which the reprocessed material enters and an output end connected to the first vibratory screening machine.
3. The phosphate ore waste-free treatment processing system according to claim 2, characterized in that the primary screening vibratory screening mechanism is further arranged upstream of the jaw crusher with:
the buffering ore bin is used for collecting oversize materials of the fixed grid sieve;
and the first vibrating feeder is used for uniformly conveying the materials in the buffering ore bin to the jaw crusher.
4. The phosphorus ore waste-free treatment processing system according to claim 1, wherein the dry separation mechanism comprises:
the second vibrating feeder is used for uniformly conveying the materials to be sorted;
the weighing feeder is arranged at the downstream of the second vibrating feeder and is used for controlling the material supply speed conveyed to the downstream;
and the intelligent photoelectric dry-type concentrator is arranged at the downstream of the weighing and feeding machine and is used for separating the concentrate in the material to be separated from the tailings.
5. The phosphate ore waste-free treatment processing system according to claim 4, characterized in that the dry separation mechanism is further arranged with a buffer hopper upstream of the second vibratory feeder for collecting the material to be separated.
6. The phosphorus ore non-waste treatment processing system according to claim 1, wherein the tailings vibrating and screening mechanism comprises:
the hammer type shaping crusher is used for mechanically making sand for the tailings to obtain machine-made sand;
and the second vibrating screening machine is arranged at the downstream of the hammer type shaping crusher and is used for screening the machine-made sand according to different particle sizes, and the machine-made sand with different particle sizes is collected by using different sand bins.
7. The phosphate ore waste-free treatment processing system according to claim 6, wherein the tailings vibrating screening mechanism is further arranged with:
the separation hopper is used for collecting the tailings;
and the tailing feeder is arranged at the downstream of the distributing hopper and is used for conveying the tailings to the downstream.
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| CN202020016764.0U CN211865355U (en) | 2020-01-06 | 2020-01-06 | Phosphorite does not have useless processing system that handles |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113649101A (en) * | 2021-07-26 | 2021-11-16 | 陕西冶金设计研究院有限公司 | Device and process method for comprehensively utilizing low-grade lead-zinc ore |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113649101A (en) * | 2021-07-26 | 2021-11-16 | 陕西冶金设计研究院有限公司 | Device and process method for comprehensively utilizing low-grade lead-zinc ore |
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