CN103962246B - Be applicable to particulate difficulty and select the current stabilization direct flotation method of collophane - Google Patents
Be applicable to particulate difficulty and select the current stabilization direct flotation method of collophane Download PDFInfo
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- CN103962246B CN103962246B CN201410233304.2A CN201410233304A CN103962246B CN 103962246 B CN103962246 B CN 103962246B CN 201410233304 A CN201410233304 A CN 201410233304A CN 103962246 B CN103962246 B CN 103962246B
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Abstract
The present invention relates to a kind of current stabilization direct flotation method that is applicable to particulate difficulty and selects collophane, the method makes particulate difficulty select the direct flotation ore pulp of collophane to reach steady flow condition by following measures: 1) control direct flotation pan feeding fineness, 2) flotation device is installed stabilier, 3) control flotation device agitator arm in the slow-speed of revolution, 4) control flotation device and inflate in low aeration quantity. The inventive method can make ore pulp in flotation device form stable flow regime, this steady flow condition, can either improve particulate difficulty and select sorting and the concentrate rate of recovery of collophane direct flotation, again because stirring intensity is low, reduce flotation device energy consumption, reduced the wearing and tearing of flotation machine impeller.
Description
Technical field
The invention belongs to flotation of phosphate rock technical field, particularly relate to a kind of particulate difficulty and select the current stabilization direct flotation technology of collophane.
Background technology
It is a great problem in phosphate rock floating field that particulate difficulty is selected the direct flotation of collophane. Its difficult point is, phosphorus ore thing disseminated grain size is thin on the one hand, need ore grinding to thinner granularity just can make phosphorus ore thing and gangue mineral monomer dissociation, and in the time that granularity is thinner, due to the increase of mineral surface area, the adsorption capacity of various mineral increases, cause direct flotation collecting agent selectively poor, add carrying secretly of fine-grained gangue mineral in flotation froth more, so, when granularity is thinner, the sorting of direct flotation is poor; On the other hand, the floatability of collophane itself is poor, and the absorption of phosphorus ore thing and floating agent is insecure, and the interference that phosphorus ore thing is easily subject to ore pulp flow regime comes off from flotation froth. Select this difficult problem of collophane direct flotation in order to solve particulate difficulty, domestic research mainly concentrates on to be found on the direct flotation collecting agent that sorting is good, and obtain good effect, but the research that aligns flotation pulp flow regime is less, and having no the patented technology of this respect, ore pulp flow regime is also the key factor that particulate difficulty is selected collophane direct flotation.
At present, the flotation device adopting in phosphate rock floating industrial production, is the flotation device for metallic ore design, and such flotation device stirring intensity is large, and aeration quantity is large, there is no steady flow measure, is not suitable with particulate difficulty and selects the direct flotation of collophane.
Summary of the invention
Technical problem to be solved by this invention is for the deficiencies in the prior art, provide a kind of new particulate difficulty to select the current stabilization direct flotation technology of collophane, make the particulate difficulty select the direct flotation ore pulp of collophane in steady flow condition, improved particulate difficulty and select sorting and the concentrate rate of recovery of collophane direct flotation.
Technical problem to be solved by this invention is to realize by following technical scheme. The present invention is a kind of current stabilization direct flotation method that is applicable to particulate difficulty and selects collophane, is characterized in:
(1) control direct flotation pan feeding fineness; Direct flotation pan feeding fineness control to-200 order quality percentage compositions are greater than 70%;
(2) stabilier is installed on flotation device; Described stabilier is fixedly installed in agitator arm top, and stabilier area is greater than the agitator arm area of plane; Or stabilier is fixedly installed in to agitator arm surrounding, is dentation and is uniformly distributed in agitator arm surrounding;
(3) value of control flotation device agitator arm linear velocity is 2.5-5.5 meter per seconds;
(4) control flotation device aeration quantity and be 25-200 liters/meters2. minute.
The present invention is applicable to particulate difficulty and selects in the current stabilization direct flotation method of collophane, and the concrete operation method of direct flotation and the flotation device of use do not specify, all use method and the flotation device of prior art.
The particulate difficulty that is applicable to of the present invention is selected in the current stabilization direct flotation method of collophane: the linear velocity of described agitator arm is preferably 3.5-4.5 meter per seconds. Described flotation device aeration quantity is preferably 50-150 liters/meters2. minute.
Adopt the inventive method in particulate difficulty is selected collophane direct flotation flotation device, keep mobile in stable condition object and the effect of ore pulp to be: to be to reduce flotation device bubble mineralization district stirring intensity on the one hand, avoid because stir strong, the mineral grain of mineral laden bubble adsorption being come off, by stabilier, bubble mineralization district and mineral laden bubble floating in flotation device to be distinguished on the other hand, reduce bubble mineralization district and stir the impact on mineral laden bubble floating, avoid coming off of mineral laden bubble floating-upward process Minerals particle. By the inventive method, in flotation device, ore pulp has formed stable flow regime, this steady flow condition, particulate difficulty be can either improve and sorting and the concentrate rate of recovery of collophane direct flotation selected, because stirring intensity is low, reduce flotation device energy consumption again, reduced the wearing and tearing of flotation machine impeller.
Detailed description of the invention
Below further describe concrete technical scheme of the present invention, so that those skilled in the art further understands the present invention, and do not form the restriction to its right.
Embodiment 1, a kind of current stabilization direct flotation method that is applicable to particulate difficulty and selects collophane:
(1) control direct flotation pan feeding fineness; Direct flotation pan feeding fineness control to-200 order quality percentage compositions are 70%;
(2) stabilier is installed on flotation device; Described stabilier is fixedly installed in agitator arm top, and stabilier area is greater than the agitator arm area of plane; Or stabilier is fixedly installed in to agitator arm surrounding, is dentation and is uniformly distributed in agitator arm surrounding;
(3) value of control flotation device agitator arm linear velocity is 2.5 meter per seconds;
(4) controlling flotation device aeration quantity is 25 liters/meter2. minute.
Embodiment 2, a kind of current stabilization direct flotation method that is applicable to particulate difficulty and selects collophane:
(1) control direct flotation pan feeding fineness; Direct flotation pan feeding fineness control to-200 order quality percentage compositions are 85%;
(2) stabilier is installed on flotation device; Described stabilier is fixedly installed in agitator arm top, and stabilier area is greater than the agitator arm area of plane; Or stabilier is fixedly installed in to agitator arm surrounding, is dentation and is uniformly distributed in agitator arm surrounding;
(3) value of control flotation device agitator arm linear velocity is 5.5 meter per seconds;
(4) controlling flotation device aeration quantity is 200 liters/meter2. minute.
Embodiment 3, a kind of current stabilization direct flotation method that is applicable to particulate difficulty and selects collophane:
(1) control direct flotation pan feeding fineness; Direct flotation pan feeding fineness control to-200 order quality percentage compositions are 75%;
(2) stabilier is installed on flotation device; Described stabilier is fixedly installed in agitator arm top, and stabilier area is greater than the agitator arm area of plane; Or stabilier is fixedly installed in to agitator arm surrounding, is dentation and is uniformly distributed in agitator arm surrounding;
(3) value of control flotation device agitator arm linear velocity is 3.5 meter per seconds;
(4) controlling flotation device aeration quantity is 50 liters/meter2. minute.
Embodiment 4, a kind of current stabilization direct flotation method that is applicable to particulate difficulty and selects collophane:
(1) control direct flotation pan feeding fineness; Direct flotation pan feeding fineness control to-200 order quality percentage compositions are 80%;
(2) stabilier is installed on flotation device; Described stabilier is fixedly installed in agitator arm top, and stabilier area is greater than the agitator arm area of plane; Or stabilier is fixedly installed in to agitator arm surrounding, is dentation and is uniformly distributed in agitator arm surrounding;
(3) value of control flotation device agitator arm linear velocity is 4.5 meter per seconds;
(4) controlling flotation device aeration quantity is 150 liters/meter2. minute.
Embodiment 5, a kind of current stabilization direct flotation method that is applicable to particulate difficulty and selects collophane:
(1) control direct flotation pan feeding fineness; Direct flotation pan feeding fineness control to-200 order quality percentage compositions are 77%;
(2) stabilier is installed on flotation device; Described stabilier is fixedly installed in agitator arm top, and stabilier area is greater than the agitator arm area of plane; Or stabilier is fixedly installed in to agitator arm surrounding, is dentation and is uniformly distributed in agitator arm surrounding;
(3) value of control flotation device agitator arm linear velocity is 4.0 meter per seconds;
(4) controlling flotation device aeration quantity is 100 liters/meter2. minute.
Embodiment 6, a kind of particulate difficulty is selected the application test one of the current stabilization direct flotation method of collophane:
Domestic certain particulate difficulty is selected collophane sample ore one, raw ore P2O5Content is 16.88%, at mog is :-200 order content 80%, and flotation device stabilier is fixedly installed in agitator arm surrounding, is dentation and is uniformly distributed in agitator arm surrounding, and the value of agitator arm linear velocity is: 3.7 meter per seconds, flotation device aeration quantity is: 55 liters/meter2. minute time, one roughing can obtain direct flotation concentrate P2O5Grade is 18.41%, P2O5The rate of recovery is 94.09%.
Embodiment 7, a kind of particulate difficulty is selected the application test two of the current stabilization direct flotation method of collophane:
Domestic certain particulate difficulty is selected collophane sample ore one, raw ore P2O5Content is 16.88%, at mog be :-200 order content 80%, flotation device stabilier is fixedly installed in agitator arm surrounding, is dentation and is uniformly distributed in agitator arm surrounding, the value of agitator arm linear velocity is: 3.7 meter per seconds, flotation device aeration quantity is: 150 liters/meter2. minute time, one roughing can obtain direct flotation concentrate P2O5Grade is 17.80%, P2O5The rate of recovery is 90.73%.
Embodiment 8, a kind of particulate difficulty is selected the application test three of the current stabilization direct flotation method of collophane:
Domestic certain particulate difficulty is selected collophane sample ore one, raw ore P2O5Content is 16.88%, at mog is :-200 order content 82%, and flotation device stabilier is fixedly installed in agitator arm surrounding, is dentation and is uniformly distributed in agitator arm surrounding, and the value of agitator arm linear velocity is: 5.5 meter per seconds, flotation device aeration quantity is: 55 liters/meter2. minute time, one roughing can obtain direct flotation concentrate P2O5Grade is 17.34%, P2O5The rate of recovery is 89.28%.
Embodiment 9, a kind of particulate difficulty is selected the application test four of the current stabilization direct flotation method of collophane:
Domestic certain particulate difficulty is selected collophane sample ore two, raw ore P2O5Content is 20.51%, at mog be :-200 order content 85%, flotation device stabilier is fixedly installed in agitator arm top, and stabilier area is greater than the agitator arm area of plane, the value of agitator arm linear velocity is: 4.3 meter per seconds, flotation device aeration quantity is: 80 liters/meter2. minute time, one roughing primary cleaning can obtain direct flotation concentrate P2O5Grade is 25.97%, P2O5The rate of recovery is 87.15%.
Embodiment 10, a kind of particulate difficulty is selected the application test five of the current stabilization direct flotation method of collophane:
Domestic certain particulate difficulty is selected collophane sample ore two, raw ore P2O5Content is 20.51%, at mog be :-200 order content 85%, flotation device stabilier is fixedly installed in agitator arm top, and stabilier area is greater than the agitator arm area of plane, the value of agitator arm linear velocity is: 4.7 meter per seconds, flotation device aeration quantity is: 103 liters/meter2. minute time, one roughing primary cleaning can obtain direct flotation concentrate P2O5Grade is 25.64%, P2O5The rate of recovery is 86.74%.
Embodiment 11, a kind of particulate difficulty is selected the application test six of the current stabilization direct flotation method of collophane:
Domestic certain particulate difficulty is selected collophane sample ore two, raw ore P2O5Content is 20.51%, at mog be :-200 order content 85%, flotation device stabilier is fixedly installed in agitator arm top, and stabilier area is greater than the agitator arm area of plane, the value of agitator arm linear velocity is: 5.0 meter per seconds, flotation device aeration quantity is: 126 liters/meter2. minute time, one roughing primary cleaning can obtain direct flotation concentrate P2O5Grade is 25.48%, P2O5The rate of recovery is 84.86%.
Claims (3)
1. be applicable to particulate difficulty and select a current stabilization direct flotation method for collophane, it is characterized in that:
(1) control direct flotation pan feeding fineness; Direct flotation pan feeding fineness control to-200 order quality percentage compositions are greater than 70%;
(2) stabilier is installed on flotation device; Described stabilier is fixedly installed in agitator arm top, and stabilier area is greater than the agitator arm area of plane; Or stabilier is fixedly installed in to agitator arm surrounding, is dentation and is uniformly distributed in agitator arm surrounding;
(3) value of control flotation device agitator arm linear velocity is 2.5-5.5 meter per seconds;
(4) control flotation device aeration quantity and be 25-200 liters/meters2. minute.
2. method according to claim 1, is characterized in that: the linear velocity of described agitator arm is 3.5-4.5 meter per seconds.
3. method according to claim 1, is characterized in that: described flotation device aeration quantity is 50-150 liters/meters2. minute.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410233304.2A CN103962246B (en) | 2014-05-29 | 2014-05-29 | Be applicable to particulate difficulty and select the current stabilization direct flotation method of collophane |
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| CN201410233304.2A CN103962246B (en) | 2014-05-29 | 2014-05-29 | Be applicable to particulate difficulty and select the current stabilization direct flotation method of collophane |
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| CN103962246B true CN103962246B (en) | 2016-05-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1015602B (en) * | 1989-07-14 | 1992-02-26 | 化工部化工矿山设计研究院 | Collophane floatation machine |
| CN100522374C (en) * | 2006-01-27 | 2009-08-05 | 湖北宜化肥业有限公司 | Mineral dressing method of mid-low grade collophane |
| CN102744160B (en) * | 2012-07-24 | 2013-09-04 | 中蓝连海设计研究院 | Iso-floatable separation process of siliceous-calcareous collophanite |
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