CN107335531A - A kind of method of separation by shaking table phosphorus ore - Google Patents

A kind of method of separation by shaking table phosphorus ore Download PDF

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Publication number
CN107335531A
CN107335531A CN201710823789.4A CN201710823789A CN107335531A CN 107335531 A CN107335531 A CN 107335531A CN 201710823789 A CN201710823789 A CN 201710823789A CN 107335531 A CN107335531 A CN 107335531A
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CN
China
Prior art keywords
shaking
chats
concentrate
roughing
ore
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Pending
Application number
CN201710823789.4A
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Chinese (zh)
Inventor
胡勇
甘顺鹏
蒋世鹏
季荣
谢超
杨三妹
杨清
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China Bluestar Changsha Design and Research Institute
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China Bluestar Changsha Design and Research Institute
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Priority to CN201710823789.4A priority Critical patent/CN107335531A/en
Publication of CN107335531A publication Critical patent/CN107335531A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03BSEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/02Washing granular, powdered or lumpy materials; Wet separating using shaken, pulsated or stirred beds as the principal means of separation
    • B03B5/04Washing granular, powdered or lumpy materials; Wet separating using shaken, pulsated or stirred beds as the principal means of separation on shaking tables
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03BSEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B9/00General arrangement of separating plant, e.g. flow sheets

Abstract

A kind of method of separation by shaking table phosphorus ore, comprises the following steps:(1)Rock phosphate in powder is crushed to below 2mm;(2)Add fresh water to size mixing as the ore pulp of solid content mass concentration 20%~30%, ore pulp is added into shaking table carries out roughing, obtains rougher concentration, roughing chats and rougher tailings ore pulp;(3)Rougher tailings ore pulp addition shaking table is scanned, scavenger concentrate is obtained, scan chats and scans mine tailing;(4)Roughing chats and scavenger concentrate are added after thickening to shaking table and carry out selected, obtains selected concentrate, selected chats, cleaner tailings;(5)Wherein rougher concentration and final concentrate of the selected concentrate as this technique, scan mine tailing, scan chats and true tailings of the cleaner tailings as this technique.The present invention need not add medicament, and phosphorus concentrate is enriched with from low-grade phosphate ore stone by way of table concentration, and equipment investment is small, easy to operation, and energy consumption is low, and comprehensive production cost is low, and effect on environment is small.

Description

A kind of method of separation by shaking table phosphorus ore
Technical field
The present invention relates to a kind of technique that phosphorus concentrate is enriched with from rock phosphate in powder, and in particular to a kind of side by table concentration The technique of formula low cost enrichment phosphorus concentrate from rock phosphate in powder.
Background technology
Overwhelming majority category mid-low grade collophanite ore in China's phosphate rock resource.At present, domestic application is in the ore dressing skill of collophane Mainly there are floatation, scrubbing-desliming technique, gravity separation, roasting-digestion process, chemical leaching technologies, photoelectricity selection skill in art Art, beneficiation combined method flow, hydrochloric acid decompose mid-low grade collophanite ore preparing phosphoric acid etc..Wherein, floatation is that application is most wide, skill Art also the most ripe one kind, but floatation also has its limitation, such as:The relatively other beneficiation methods of flotation are needed mineral Levigate and persistently add medicament, beneficiation cost is of a relatively high;Ore dressing needs to use various inorganic or organic medicament, these medicaments pair It is larger in the pollution of environment, it is unqualified to easily cause environmental protection of enterprise.In recent years, gravity treatment cyclone Deslim-floatation, dense medium separation It is taken seriously etc. technique, on the one hand, the beneficiation cost of gravity treatment is low compared with flotation, and on the other hand, floating agent largely remains in tail In water and concentrate, environment is polluted, also influences concentrate quality.But dense medium separation also has its shortcoming, such as:Dense medium separation The mineral thinner to granularity are difficult to sort;In dense medium separation, dense media is needed individually to recycle, and dense medium is had in concentrate Matter is carried secretly;For part collophane, because mineral intergrowth is more, it is difficult to separate valuable mineral with the method for dense medium separation.
At present, rock phosphate in powder gravity separation technology selects cyclone desliming mostly, and the report of the table concentration technique on rock phosphate in powder Road is less.Using shaking table to rock phosphate in powder desliming in CN104959239B patents, the purpose of this technique is to reduce sludge in next step The influence of flotation, technique is simple, but phosphorous recovery is low.What Bai Zhongneng etc. write《Middle level ore gravity treatment on II grade of product of Jinning County's phosphorus ore Experiment》A table concentration technique after multiple fractionation is mentioned in paper, this raw materials technology feed particle size is below -0.25mm, this Technological process focuses on multiple fractionation, and phosphorus loss is larger in this technique mine tailing.
The content of the invention
The technical problem to be solved in the present invention is overcome the deficiencies in the prior art, there is provided a kind of phosphorous recovery is higher, energy consumption The method of relatively low separation by shaking table phosphorus ore.
It is a kind of method of separation by shaking table phosphorus ore that the present invention, which solves the technical scheme that its technical problem uses, including following Step:
(1)Rock phosphate in powder is crushed to below -2mm(Prior art be not using shaking table as technique core, its granularity requirements compared with Height, granularity requirements of the present invention are thicker, can save a large amount of ore grinding costs);
(2)Will be through step(1)The rock phosphate in powder of processing, add fresh water and size mixing as the ore pulp of solid content mass concentration 20%~30%, general Ore pulp adds shaking table and carries out roughing, obtains rougher concentration, roughing chats and rougher tailings ore pulp;
Fresh water of the present invention is salt content≤5wt% water.
(3)By step(2)Gained rougher tailings ore pulp add shaking table scanned, obtain scavenger concentrate, scan chats and Scan mine tailing;
(4)By step(2)Gained roughing chats and step(3)Gained scavenger concentrate adds shaking table after thickening and carries out essence Choosing, obtains selected concentrate, selected chats, cleaner tailings;
(5)Wherein rougher concentration and final concentrate of the selected concentrate as this technique, scan mine tailing, scan chats and cleaner tailings As the true tailings of this technique, selected chats is further processed according to its grade and separating effect.
Further, step(2)In, roughing pan feeding mass concentration is 20-30%.Step(3)In, scan pan feeding mass concentration For 15-20%.Step(4)In, roughing chats and scavenger concentrate selected pan feeding mass concentration after thickening are 20-25%.
Further, step(1)In, the rock phosphate in powder contains P2O5≥19wt%.Step(2)In, if rougher concentration is not met down One step smelting requirements, further treatment measures are selected according to concentrate grade, including regrind-flotation, dense medium separation, ore grinding-weight The techniques such as choosing.
Further, step(4)The selected chats of middle acquisition, further treatment measures, it may include directly as mine tailing, chats Regrind-flotation, middling ore regrinding-shaking table or dense medium separation etc..
Each sorting shaking table model selection need determined according to feed preparation unit size, roughing and it is selected select sand table, sweep Select slimer.
The present invention need not add medicament, and phosphorus concentrate is enriched with from low-grade phosphate ore stone by way of table concentration, if Standby investment is small, and easy to operation, grinding particle size is thick(Need not be so thin as prior art), energy consumption is low, and comprehensive production cost is low, right Environment influence it is small, for flotation of phosphate rock industry provide a kind of cost it is relatively low and can throw remove a large amount of mine tailings table concentration technique.This Invention can be directly entered smelting or enter flotation, heavymedia separation etc. according to the difference of concentrate grade.The present invention is in removing one While dividing sludge, silicate impurity is further removed, improves concentrate grade, Technological adaptability is stronger, and for part phosphorus Ore, this technique can select qualified phosphorus concentrate.
Embodiment
Below in conjunction with embodiment, the invention will be further described.
Fresh water described in various embodiments of the present invention is salt content≤5wt% water.
Embodiment 1
(1)By rock phosphate in powder(P2O519.02wt%、MgO 2.45wt%)It is milled to below -2mm;
(2)Will be through step(1)The rock phosphate in powder of processing, add fresh water and size mixing to solid content mass concentration 25%, obtain ore pulp;By ore pulp Add shaking table and carry out roughing, obtain rougher concentration, roughing chats and rougher tailings ore pulp;
Roughing pan feeding mass concentration is 25%.
(3)By step(2)Gained rougher tailings ore pulp is scanned into shaking table, obtain scavenger concentrate, scan chats and Scan mine tailing;Pan feeding mass concentration is scanned as 15%.
(4)By step(2)Gained roughing chats and step(3)Gained scavenger concentrate enters after thickening into shaking table Row is selected, obtains selected concentrate, selected chats, cleaner tailings;
The selected pan feeding mass concentration after thickening is 20% to roughing chats with scavenger concentrate.
(5)Wherein rougher concentration and final concentrate of the selected concentrate as this technique, scan mine tailing, scan chats and selected True tailings of the mine tailing as this technique, selected chats(P2O5Mass content 18.36%, MgO mass contents 1.98%, P2O5Return Yield 28.79%)Middle P2O5Grade is relatively low, can obtain qualified concentrate containing using ore grinding-floatation process in next step.Roughing and selected choosing With sand table, scan from slimer.
Present invention process flow can obtain final concentrate(P2O5Mass content 26.43%, MgO mass contents 0.87%, P2O5The rate of recovery 55.98%), true tailings(P2O5Mass content 9.45%, MgO mass contents 5.12%, P2O5The rate of recovery 15.23%), the selected chats of roughing chats and selected gained after scavenger concentrate thickening(P2O5Mass content 18.36%, MgO Mass content 1.98%, P2O5The rate of recovery 28.79%).
Embodiment 2
The present embodiment comprises the following steps:
(1)By rock phosphate in powder(P2O526.11wt%、MgO 1.08wt%)It is milled to below -2mm;
(2)Will be through step(1)The rock phosphate in powder of processing, add fresh water and size mixing to solid content mass concentration 30%, obtain ore pulp;By ore pulp Add shaking table and carry out roughing, obtain rougher concentration, roughing chats and rougher tailings ore pulp;Roughing pan feeding mass concentration is 30%.
(3)Step(2)Gained rougher tailings ore pulp is scanned into shaking table, is obtained scavenger concentrate, is scanned chats and sweep Select mine tailing;Pan feeding mass concentration is scanned as 20%.
(4)By step(2)Gained roughing chats and step(3)Gained scavenger concentrate enters after thickening into shaking table Row is selected, obtains selected concentrate, selected chats, cleaner tailings;Roughing chats and scavenger concentrate after thickening it is selected enter It is 25% to expect mass concentration.
(5)Wherein rougher concentration and final concentrate of the selected concentrate as this technique, scan mine tailing, scan chats and selected True tailings of the mine tailing as this technique, selected chats(P2O5Mass content 27.67%, MgO mass contents 0.89%, P2O5Return Yield 25.82%)Middle P2O5Grade is higher, can make the processing such as ore grinding-flotation, ore grinding-shaking table, dense medium separation.Roughing and essence Sand table is selected, is scanned from slimer.
Present invention process flow can obtain final concentrate(P2O5Mass content 29.12%, MgO mass contents 0.79%, P2O5The rate of recovery 69.54%), true tailings(P2O58.78 mass content %, MgO mass contents 2.24%, P2O5The rate of recovery 4.64%), The selected chats of roughing chats and selected gained after scavenger concentrate thickening(P2O5Mass content 27.67%, MgO mass contents 0.89%, P2O5The rate of recovery 25.82%).
Embodiment 3
The present embodiment comprises the following steps:
(1)By rock phosphate in powder(P2O527.16wt%、MgO 1.78wt%)It is milled to below -2mm;
(2)Will be through step(1)The rock phosphate in powder of processing, add fresh water and size mixing to solid content mass concentration 25%, obtain ore pulp;By ore pulp Add shaking table and carry out roughing, obtain rougher concentration, roughing chats and rougher tailings;Roughing pan feeding mass concentration is 25%.
(3)Step(2)Gained rougher tailings ore pulp adds shaking table and scanned, and obtains scavenger concentrate, scans chats and sweep Select mine tailing;Pan feeding mass concentration is scanned as 20%.
(4)By step(2)Gained roughing chats and step(3)Gained scavenger concentrate enters after thickening into shaking table Row is selected, obtains selected concentrate, selected chats, cleaner tailings;Roughing chats and scavenger concentrate after thickening it is selected enter It is 25% to expect mass concentration.
(5)Wherein rougher concentration and final concentrate of the selected concentrate as this technique, scan mine tailing, scan chats and selected True tailings of the mine tailing as this technique, selected chats(P2O5Mass content 28.33%, MgO mass contents 2.52%, P2O5Return Yield 25.50%)Middle P2O5It is higher, MgO is higher, qualified concentrate containing can be obtained with ore grinding-reverse flotation de-magging in next step.Roughing and selected From sand table, scan from slimer.
Present invention process flow can obtain final concentrate(P2O5Mass content 30.34%, MgO mass contents 0.92%, P2O5The rate of recovery 69.90%), true tailings(P2O5Mass content 9.01%, MgO mass contents 4.22%, P2O5The rate of recovery 4.60%), The selected chats of roughing chats and selected gained after scavenger concentrate thickening(P2O5Mass content 28.33%, MgO mass contents 2.52%, P2O5The rate of recovery 25.50%).

Claims (6)

  1. A kind of 1. method of separation by shaking table phosphorus ore, it is characterised in that comprise the following steps:
    (1)Rock phosphate in powder is crushed to below -2mm;
    (2)Will be through step(1)The rock phosphate in powder of processing, add fresh water and size mixing as the ore pulp of solid content mass concentration 20%~30%, general Ore pulp adds shaking table and carries out roughing, obtains rougher concentration, roughing chats and rougher tailings ore pulp;
    Fresh water of the present invention is salt content≤5wt% water;
    (3)By step(2)Gained rougher tailings ore pulp adds shaking table and scanned, and obtains scavenger concentrate, scans chats and scan Mine tailing;
    (4)By step(2)Gained roughing chats and step(3)Gained scavenger concentrate adds shaking table after thickening and carries out essence Choosing, obtains selected concentrate, selected chats, cleaner tailings;
    (5)Wherein rougher concentration and final concentrate of the selected concentrate as this technique, scan mine tailing, scan chats and cleaner tailings As the true tailings of this technique, selected chats is further processed according to its grade and separating effect.
  2. 2. the method for separation by shaking table phosphorus ore according to claim 1, it is characterised in that step(2)In, roughing pan feeding quality Concentration is 20-30%.
  3. 3. the method for separation by shaking table phosphorus ore according to claim 1 or 2, it is characterised in that step(3)In, scan pan feeding Mass concentration is 15-20%.
  4. 4. the method for separation by shaking table phosphorus ore according to claim 1 or 2, it is characterised in that step(4)In, roughing chats Selected pan feeding mass concentration is 20-25% after thickening with scavenger concentrate.
  5. 5. the method for separation by shaking table phosphorus ore according to claim 1 or 2, it is characterised in that step(1)In, the phosphorus ore Stone contains P2O5≥19wt%。
  6. 6. the method for separation by shaking table phosphorus ore according to claim 1 or 2, it is characterised in that roughing and selected select ore in sand form Shaking table, scan from slimer.
CN201710823789.4A 2017-09-13 2017-09-13 A kind of method of separation by shaking table phosphorus ore Pending CN107335531A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109453891A (en) * 2018-10-23 2019-03-12 宜都兴发化工有限公司 A kind of high sesquialter collophane spiral chute floats process integration again
CN111375484A (en) * 2018-12-29 2020-07-07 中蓝连海设计研究院有限公司 Phosphate ore washing, classifying, roasting and flotation method
CN111375482A (en) * 2018-12-29 2020-07-07 中蓝连海设计研究院有限公司 Method for grading and sorting silico-calcic phosphate ore

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB428614A (en) * 1933-11-15 1935-05-15 Leonard William Needham Improvements in or relating to concentrating tables for washing coal and the like
CN101797531A (en) * 2010-03-23 2010-08-11 云南锡业集团(控股)有限责任公司 Method for recovering valuable metal mineral in zinc tailing
CN102557086A (en) * 2012-02-18 2012-07-11 贵州大学 Method for recovering phosphorus from phosphorite tailings and preparing light magnesium oxide
CN103801450A (en) * 2014-03-06 2014-05-21 江西理工大学 Process for recovering tungsten from very low grade tungstenic tailings
CN104959239A (en) * 2015-06-26 2015-10-07 中国地质科学院矿产综合利用研究所 Floating technology for low-grade refractory weathering collophanite section desliming
CN105750090A (en) * 2016-05-09 2016-07-13 武汉科技大学 Silica-calcia bearing phosphate rock separation method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB428614A (en) * 1933-11-15 1935-05-15 Leonard William Needham Improvements in or relating to concentrating tables for washing coal and the like
CN101797531A (en) * 2010-03-23 2010-08-11 云南锡业集团(控股)有限责任公司 Method for recovering valuable metal mineral in zinc tailing
CN102557086A (en) * 2012-02-18 2012-07-11 贵州大学 Method for recovering phosphorus from phosphorite tailings and preparing light magnesium oxide
CN103801450A (en) * 2014-03-06 2014-05-21 江西理工大学 Process for recovering tungsten from very low grade tungstenic tailings
CN104959239A (en) * 2015-06-26 2015-10-07 中国地质科学院矿产综合利用研究所 Floating technology for low-grade refractory weathering collophanite section desliming
CN105750090A (en) * 2016-05-09 2016-07-13 武汉科技大学 Silica-calcia bearing phosphate rock separation method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
周松林等: "《铜冶炼渣选矿》", 31 December 2014, 冶金工业出版社 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109453891A (en) * 2018-10-23 2019-03-12 宜都兴发化工有限公司 A kind of high sesquialter collophane spiral chute floats process integration again
CN109453891B (en) * 2018-10-23 2021-06-18 宜都兴发化工有限公司 High sesqui-collophanite spiral chute re-floating combined process
CN111375484A (en) * 2018-12-29 2020-07-07 中蓝连海设计研究院有限公司 Phosphate ore washing, classifying, roasting and flotation method
CN111375482A (en) * 2018-12-29 2020-07-07 中蓝连海设计研究院有限公司 Method for grading and sorting silico-calcic phosphate ore
CN111375482B (en) * 2018-12-29 2021-12-07 中蓝连海设计研究院有限公司 Method for grading and sorting silico-calcic phosphate ore

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