CN108855586A - A kind of Unit erriger of coal floatation - Google Patents
A kind of Unit erriger of coal floatation Download PDFInfo
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- CN108855586A CN108855586A CN201710331651.2A CN201710331651A CN108855586A CN 108855586 A CN108855586 A CN 108855586A CN 201710331651 A CN201710331651 A CN 201710331651A CN 108855586 A CN108855586 A CN 108855586A
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- coal
- flotation
- flotation device
- floatation
- sink
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION 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
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
- B03B9/005—General arrangement of separating plant, e.g. flow sheets specially adapted for coal
Abstract
The present invention relates to a kind of Unit errigers of coal floatation.It is that the coal slime Tailings Slurry after coal separation coal slirne or dilution is cut coarse fraction to be directly entered floatation mineralizing device for 0mm-0.1mm, enter first time flotation after mineralising, after the floatation clean coal water filling of first time, into second of flotation, the floating tail-coal of first time enters concentration basin concentration.After secondary floatation clean coal water filling, into third time flotation, material after secondary floating tail-coal and mineralising is mixed into first time flotation, after secondary floatation clean coal water filling, into third time flotation, the cleaned coal floatingly selected is qualified cleaned coal, and the floating tail-coal of third time enters coal slime sink-float machine, coal slime sink-float machine overflow enters a floatation clean coal slurry box and is diluted, coal in coal slime sink-float machine underflow output.
Description
Technical field
The invention patent relates in a kind of Unit erriger of coal floatation more particularly to a kind of coal slime very poor from floatability
The equipment for recycling cleaned coal.
Background technique
Traditional floatation coal separation technique is that coal separation coal slirne is cut to coarse fraction to be directly entered flotation pretreatment for 0mm-0.5mm
Device carries out flotation into flotation device, floatingly selects cleaned coal and tail coal after floating agent and circulation dilution water stirring is added.It is insufficient
Place：Due to being traditional floatation process, the middle coal in coal slime can not individually be selected, ensure the conjunction of floatation clean coal ash content index
In the case where lattice, tail coal ash content is lower；In the case where ensuring the higher situation of tail coal ash content, floatation clean coal ash content index also increases simultaneously
It is high.The main reason is that：After middle coal enters floatation clean coal, floatation clean coal ash content is higher, after middle coal enters coal slime tail coal, coal slime tail
Ash content of coal is relatively low.The patent No.：2010206966982, patent name：Coal slime sink-float machine, there is above-mentioned technical problems.
Summary of the invention
In view of the above drawbacks of the prior art, a kind of Unit erriger for coal floatation that the invention patent provides, solves
Traditional floatation process can not individually select the middle coal in coal slime, in the case where ensuring floatation clean coal ash content qualified,
Tail coal ash content is lower；In the case where ensuring the higher situation of tail coal ash content, floatation clean coal ash content index also the problem of increasing simultaneously.It is led
Want the reason is that：After middle coal enters cleaned coal, cleans ash is higher, and after middle coal enters coal slime tail coal, coal slime taillight ash content is relatively low.Herein
On the basis of, a kind of Unit erriger of coal floatation is had developed, floatation clean coal ash content is synchronous with coal preparation plant's technical indicator, and sorting is produced coal
Middle coal in mud, coal slime tail coal >=coal preparation plant's feed coal spoil ash.
In order to achieve the above object, the invention patent provides the following technical solutions：
A kind of Unit erriger of coal floatation includes：It cuts thick vibrating screen, floatation mineralizing device, flotation device I, flotation device II, float
Machine III, coal slime sink-float machine, concentration basin are selected, described section of thick vibrating screen is connected with floatation mineralizing device, the floatation mineralizing device and flotation
Machine I, flotation device II be connected, the flotation device III respectively with flotation device II, coal slime sink-float machine be connected, the flotation device I respectively with
Concentration basin, coal slime sink-float machine are connected.
Wherein, the flotation device I is equipped with flotation concentrate case I, and flotation device I is connected by flotation concentrate case I with flotation device II,
The flotation device II is equipped with flotation concentrate case II, and the flotation device II is connected by flotation concentrate case II with flotation device III, described
Flotation device III connection clean coal pressur filter feeding box, the flotation device III are sent into cleaned coal by clean coal pressur filter feeding box and stack field
Ground, coal filter press in coal slime sink-float machine connection, coal slime sink-float machine put place by dump in middle coal filter press feeding.
Wherein, described section of thick vibrating screen is connected with floatation mineralizing device by feeding pump, the floatation mineralizing device and flotation device I
There are high and low fall, by the coal slime Tailings Slurry mineralising after coal slirne or dilution in floatation mineralizing device, exist in equipment height and fall
Gravity flow enters flotation device I on the basis of difference, is connected between the flotation concentrate case I and flotation device II by feeding pump, described floating
Concentrate selection case II is connected with flotation device III by feeding pump, and there are equipment height between the flotation device III and coal slime sink-float machine
Drop, gravity flow enter coal slime sink-float machine, and in equipment, there are flow automatically to enter on the basis of high and low fall for the coal slime sink-float machine overflow
The flotation concentrate case I of flotation device I.
Technical solution：Coal slime Tailings Slurry after coal separation coal slirne or dilution is cut coarse fraction to be directly entered for 0mm-0.1mm
Floatation mineralizing device enters the I flotation of first time flotation device after mineralising, after the floatation clean coal water filling of first time, into second of flotation
Machine II flotation, the floating tail-coal of first time enter concentration basin concentration.After secondary floatation clean coal water filling, into third time flotation
It is that 0mm-0.1mm is direct that coal slime Tailings Slurry after machine III flotation, secondary floating tail-coal and coal slirne or dilution, which cuts coarse fraction,
Material into floatation mineralizing device is mixed into first time flotation, after secondary floatation clean coal water filling, into third time flotation,
The cleaned coal floatingly selected is qualified cleaned coal, and the floating tail-coal of third time enters coal slime sink-float machine, and coal slime rises and falls machine overflow into once
Floatation clean coal slurry box is diluted, coal in coal slime sink-float machine underflow output.
The beneficial effect of the invention patent is：A kind of Unit erriger for coal floatation that the invention patent provides, flotation essence
Ash content of coal is synchronous with coal preparation plant's technical indicator, sub-elects the middle coal in coal slime, coal slime tail coal >=coal preparation plant's feed coal spoil
Ash.
In order to be further understood that the feature and technology contents of the invention patent, please refer to below in connection with of the invention special
The detailed description and accompanying drawings of benefit, however, the drawings only provide reference and explanation, is not used to limit the invention patent.
Detailed description of the invention
With reference to the accompanying drawing, it is described in detail by the specific embodiment to the invention patent, the invention patent will be made
Technical solution and other beneficial effects are apparent.
Fig. 1 is a kind of structural schematic diagram of the Unit erriger of coal floatation of the invention patent.
Specific embodiment
Further to illustrate technological means and its effect that the invention patent is taken, below in conjunction with the invention patent
Preferred embodiment and its attached drawing are described in detail.
Referring to Fig. 1, a kind of Unit erriger of coal floatation includes：Cut thick vibrating screen 1, floatation mineralizing device 2, flotation device
I3, flotation device II4, flotation device III5, coal slime sink-float machine 6, concentration basin 7, described section of thick vibrating screen 1 are connected with floatation mineralizing device 2,
The floatation mineralizing device 2 is connected with flotation device I3, flotation device II4, and the flotation device III5 is heavy with flotation device II4, coal slime respectively
Floating machine 6 is connected, and the flotation device I3 is connected with concentration basin 7, coal sink-float machine 6 respectively.
Wherein, the flotation device I3 is equipped with flotation concentrate case I8, and flotation device I3 passes through flotation concentrate case I8 and flotation device II4
It is connected, the flotation device II4 is equipped with flotation concentrate case II9, and the flotation device II4 passes through flotation concentrate case II9 and flotation device
III5 is connected, the flotation device III5 connection clean coal pressur filter feeding box 10, and the flotation device III5 passes through on clean coal pressur filter
Hopper 10 connects cleaned coal and stacks place, coal filter press 11 in the coal slime sink-float connection of machine 6, and coal slime sink-float machine 6 passes through middle coal pressure
Filter 11 is sent to middle dump and puts place.
Further, described section of thick vibrating screen 1 is connected with floatation mineralizing device 2 by feeding pump, the floatation mineralizing device 2 with it is floating
Selecting machine I3, there are high and low fall, by the coal slime Tailings Slurry mineralising after coal slirne or dilution in floatation mineralizing device 2, in the base of drop
Gravity flow enters flotation device I3 on plinth, is connected between the flotation concentrate case I8 and flotation device II4 by feeding pump, the flotation essence
Mine case II9 is connected with flotation device III5 by feeding pump, and there are drops between the flotation device III5 and coal slime sink-float machine 6, certainly
Stream enters coal slime sink-float machine 6, and in equipment, there are gravity flows on the basis of high and low fall to enter flotation device for coal slime sink-float 6 overflow of machine
The flotation concentrate case I8 of I3.
According to principle：Gu coal floatation is to carry out Selective Separation in liquid-gas-three phase boundary using the surface nature of mineral
A kind of method, be particulate and superfine particle material sorting in a kind of most widely used method for separating.Modern froth flotation
Journey generally comprises：Ore grinding-sizes mixing-Four processes such as FLOTATION SEPARATION-product treatment.Solid mineral grain and water are constituted one first
Determine the ore pulp solution of concentration, floating agent is then added and carrys out conditioning pulp, increases the hydrophobicity of mineral surfaces, has added bubble
Agent promotes the generation and dispersion of small blistering, and hydrophobic mineral, which will be carried to rise by bubble, forms concentrate foam floating to mineral syrup liquid
Layer.Traditional floatation mainly uses flotation device and flotation column.Coal can handle the coal that granularity is less than 0.5mm with flotation device
Mud.But in order to improve the efficiency of separation of flotation, modern flotation flowsheet reaches this target by following methods：(1) divide
Coal slime less than 0.5mm is sub-divided into several ranks according to coal slime feature, is pocessed respectively with separating method by grade flotation.(2)
0.25mm-0.5mm grade is handled with spiral classifier, and fine fraction is handled with flotation.(3) stage agent addition, in flotation flowsheet
Divide multiple point dosings in batches.
Each component purposes：
1, thick vibrating screen 1 is cut：Coal slime Tailings Slurry after coal separation coal slirne or dilution is cut and slightly enters floatation mineralizing device.
2, floatation mineralizing device 2：Coal slime Tailings Slurry after coal separation coal slirne or dilution is added under the pressure effect of feeding pump
Enter floating agent and carries out mineralising.
3, flotation device：Coal separation coal slirne after mineralising or the coal slime Tailings Slurry after dilution are subjected to flotation.
4, coal slime sink-float machine 6：Middle coal in third time floating tail-coal is isolated.
5, concentration basin 7：By first time, the floating tail-coal of flotation device I3 is concentrated, and the underflow after concentration is through filter press filters pressing
Afterwards, it is sent into tail coal and stacks field, the overflow water after concentration enters interior circulation.
Operating procedure：It is 0mm-0.1mm that coal slime Tailings Slurry after coal separation coal slirne or dilution, which is cut coarse fraction, in feeding pump
Under the action of certain pressure, into floatation mineralizing device 2, there are on the basis of drop in equipment height for the coal slime Tailings Slurry after mineralising
Gravity flow enters the I3 flotation of first time flotation device, and the floatation clean coal of first time enters the flotation concentrate case I8 water filling dilution of flotation device I3
Afterwards, second of flotation is entered under the action of feeding pump certain pressure, the flotation tailing of first time enters the concentration of concentration basin 7, dense
Tailings Slurry after contracting is sent into tailing after filter press filters pressing and stacks place.Secondary floatation clean coal enters the floating of flotation device II4
After concentrate selection case II9 water filling dilution, under the action of feeding pump certain pressure, into third time flotation, secondary flotation tail
Mine enters the tailing tank of second of flotation, and material mixing under the action of feeding pump certain pressure and after mineralising is again introduced into
First time flotation, after secondary floatation clean coal enters the flotation concentrate case II9 water filling dilution of flotation device II4, in feeding pump one
Under the action of constant-pressure, into flotation device III5, the cleaned coal floatingly selected is qualified cleaned coal, and the flotation tailing of third time is in equipment height
Gravity flow enters coal slime sink-float machine 6 on the basis of low existing drop, and in equipment height, there are the bases of drop for coal slime sink-float 6 overflow of machine
Upper gravity flow enters the flotation concentrate case I8 of flotation device I3, carries out the dilution of first time floatation clean coal ore pulp, coal slime sink-float 6 underflow of machine
The coal in output under the working principle of coal slime sink-float machine 6 puts place by dump in being sent into after middle 11 filters pressing of coal filter press.
The above, the only specific embodiment of the invention patent, but the scope of protection of the patent of the present invention is not limited to
In this, anyone skilled in the art can readily occur in variation in the technical scope that the invention patent discloses
Or replacement, should all it cover within the scope of protection of the patent of the invention.Therefore, the scope of protection of the patent of the present invention is answered described with power
Subject to the protection scope that benefit requires.
Claims (3)
1. a kind of Unit erriger of coal floatation, which is characterized in that including：It cuts thick vibrating screen, floatation mineralizing device, flotation device I, float
Machine II, flotation device III, coal slime sink-float machine, concentration basin are selected, described section of thick vibrating screen is connected with floatation mineralizing device, the ore flotation
Change device to be connected with flotation device I, flotation device II, the flotation device III is connected with flotation device II, coal slime sink-float machine respectively, described floating
The machine I of choosing is connected with concentration basin, coal slime sink-float machine respectively.
2. a kind of Unit erriger of coal floatation according to claim 1, which is characterized in that the flotation device I is equipped with floating
Concentrate selection case I, flotation device I are connected by flotation concentrate case I with flotation device II, and the flotation device II is equipped with flotation concentrate case II,
The flotation device II is connected by flotation concentrate case II with flotation device III, the flotation device III connection clean coal pressur filter feeding
Case, the flotation device III are sent into cleaned coal by clean coal pressur filter feeding box and stack place, coal pressure in the coal slime sink-float machine connection
Filter, coal slime sink-float machine are sent to middle dump by middle coal filter press and put place.
3. a kind of Unit erriger of coal floatation according to claim 1, which is characterized in that described section of thick vibrating screen and floating
Mineralizer is selected to be connected by feeding pump, there are high and low fall with flotation device I for the floatation mineralizing device, by coal in floatation mineralizing device
Coal slime Tailings Slurry mineralising after mud or dilution, in equipment height, there are gravity flows on the basis of drop to enter flotation device I, described floating
It is connected between concentrate selection case I and flotation device II by feeding pump, the flotation concentrate case II and flotation device III passes through feeding pump phase
Even, there are equipment high and low fall between the flotation device III and coal slime sink-float machine, gravity flow enters coal slime sink-float machine, the coal slime
There are the flotation concentrate case I that gravity flow on the basis of high and low fall enters flotation device I in equipment for the overflow of sink-float machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710331651.2A CN108855586B (en) | 2017-05-12 | 2017-05-12 | Combined unit for coal flotation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710331651.2A CN108855586B (en) | 2017-05-12 | 2017-05-12 | Combined unit for coal flotation |
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| CN108855586A true CN108855586A (en) | 2018-11-23 |
| CN108855586B CN108855586B (en) | 2020-08-21 |
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| CN201710331651.2A Active CN108855586B (en) | 2017-05-12 | 2017-05-12 | Combined unit for coal flotation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113210133A (en) * | 2021-04-23 | 2021-08-06 | 中煤科工集团北京华宇工程有限公司 | Three-time coal flotation process |
| CN113522515A (en) * | 2021-06-17 | 2021-10-22 | 中国矿业大学 | Coal refloating process in high-ash difficult-separation coal slime |
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| GB712104A (en) * | 1951-05-01 | 1954-07-21 | Colliery Engineering Ltd | Improvements in or relating to the separation of solid materials of different specific gravities |
| US3579442A (en) * | 1970-07-09 | 1971-05-18 | Bird Machine Co | Coal converting process |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113210133A (en) * | 2021-04-23 | 2021-08-06 | 中煤科工集团北京华宇工程有限公司 | Three-time coal flotation process |
| CN113522515A (en) * | 2021-06-17 | 2021-10-22 | 中国矿业大学 | Coal refloating process in high-ash difficult-separation coal slime |
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| CN108855586B (en) | 2020-08-21 |
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Effective date of registration: 20200123 Address after: No. 902, unit 3, building 9, Yuxiang garden, Yaodu District, Linfen City, Shanxi Province Applicant after: Shanxi century new Longteng Technology Co., Ltd Address before: 041000 Room 101, unit 1, building 6, Riverside Park, Yaodu, Linfen, Shanxi. Applicant before: Yang Lin Applicant before: Yang Lingkui |
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Denomination of invention: A combined unit for floating coal preparation Effective date of registration: 20220126 Granted publication date: 20200821 Pledgee: Bank of China Limited Linfen branch Pledgor: Shanxi century new Longteng Technology Co.,Ltd. Registration number: Y2022140000004 |