Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Combined technology of phosphorite scrubbing and direct floatation and reverse floatation

A forward and reverse flotation, combined process technology, applied in the direction of flotation, wet separation, filtration loop, etc., can solve the problems of increasing the coverage of fertile fields, loss of resources, silting river channels, etc., to improve the utilization rate of backwater, reduce The cost of beneficiation and the effect of improving the utilization rate

Active Publication Date: 2012-06-13
云南三明鑫疆磷业股份有限公司
View PDF4 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional phosphate rock scrubbing process will produce a large amount of tailings. These tailings are not only large in number, but also contain a certain amount of useful components. If they are discharged randomly, it will not only cause the loss of resources, but more importantly, it will increase the area covered by fertile land. Silting the river, causing serious environmental pollution

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Combined technology of phosphorite scrubbing and direct floatation and reverse floatation
  • Combined technology of phosphorite scrubbing and direct floatation and reverse floatation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The combined process of phosphate rock scrubbing and positive and negative flotation is as follows: (such as figure 1 shown)

[0019] 1. The raw ore enters the first stage of screening from the hopper, and the raw ore larger than 70mm enters the first stage of crushing to 65mm and then enters the ore washing machine, and the raw ore smaller than 70mm is directly used as the screen material to the ore washing machine;

[0020] 2. The ore is scrubbed in the ore washing machine to achieve the first desliming, and the scrubbed ore enters the second stage of screening;

[0021] 3. a. The output of the ore washing machine enters the second stage of screening and desliming to produce finished ore of 5㎜-14㎜, 15㎜-50㎜;

[0022] b. Lump ore larger than 50mm after screening enters the secondary crushing, and then returns to the second stage of screening and classification;

[0023] c. The overflow ore pulp at the tail of the ore washing machine and the underflow ore pulp (less th...

Embodiment 2

[0029] 1-5, 7 steps are identical with embodiment 1.

[0030] 6. When the tailings fineness is 0.074㎜, it accounts for 83.44%, and the pulp concentration is 23 ～ In the case of 24%, adopt the beneficiation process of positive flotation (one coarse, one fine and one sweep), and the dosage of positive flotation roughing agent is: 4.0kg / t of inhibitor natron, 2.05kg / t of collector fatty acid soap t, adjusting agent industrial alkali 6.0kg / t, adding collector fatty acid soap 0.5kg / t in the scavenging process, flotation temperature is 20 ℃, the grade of obtained phosphorus concentrate is 30.83%, the recovery rate is 84.43%, the yield 69.10% beneficiation index.

Embodiment 3

[0032] 1-5, 7 steps are identical with embodiment 1.

[0033] 6. When the tailings fineness is 0.074㎜, it accounts for 83.44%, and the pulp concentration is 23 ～ In the case of 24%, the beneficiation process of positive flotation-coarse-fine-sweeping is adopted, and the dosage of positive flotation roughing agents is: 4.0 kg / t of inhibitor natron, 3.0 kg / t of collector fatty acid soap, Adjusting agent (industrial alkali) 6.0kg / t, adding collector fatty acid soap 0.5kg / t in the scavenging process, under the condition of flotation temperature of 25℃, the grade of phosphorus concentrate is 30.58%, and the recovery rate is 90.71% , The beneficiation index with a yield of 75.65%.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to combined technology of phosphorite scrubbing and direct floatation and reverse floatation. After the scrubbing technology, raw ores enter the rough, fine and scavenging direct floatation and the reverse floatation technology, and the dosage of roughing medicament of the direct floatation is: 3.8-4.2kg / t of inhibitor sodium silicate, 2.05-3kg / t of collector fatty acid soapand 5-6kg / t of modifier industrial alkali. 0.5-0.7kg / t of collector fatty acid soap is added in the scavenging process, the floatation temperature ranges from 15 DEG C to 25 DEG C, and accordingly fine phosphorite is obtained. The combined technology combines the phosphorite scrubbing technology and the direct floatation and reverse floatation technology, thereby not only reducing discharge volume of scrubbed gangue but also improving return water utilization ratio. Simultaneously, middle-level and lower-level phosphorous resources are utilized maximumly, and compared with single floatation technology, the combined technology can remarkably reduce beneficiation cost and improve utilization ratio of resources.

Description

technical field [0001] The invention relates to the technical field of phosphate rock beneficiation, in particular to a combined process of phosphate rock scrubbing and positive and negative flotation. Background technique [0002] The traditional phosphate rock scrubbing process will produce a large amount of tailings. These tailings are not only large in number, but also contain a certain amount of useful components. If they are discharged randomly, it will not only cause the loss of resources, but more importantly, it will increase the area covered by fertile land. Silting the river, causing serious environmental pollution. Contents of the invention [0003] The purpose of the present invention is to provide a combination process of phosphate rock scrubbing and forward and reverse flotation, which can not only reduce the discharge of tailings after scrubbing, but also effectively utilize resources. [0004] Phosphate rock scrubbing of the present invention and the com...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B03B7/00B03D1/00B03D1/004B01D36/04B03D101/02B03D101/06
Inventor 张贤敏林仁平杨荣保
Owner 云南三明鑫疆磷业股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com