CN106622680A - Floating separation system - Google Patents
Floating separation system Download PDFInfo
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- CN106622680A CN106622680A CN201611230983.3A CN201611230983A CN106622680A CN 106622680 A CN106622680 A CN 106622680A CN 201611230983 A CN201611230983 A CN 201611230983A CN 106622680 A CN106622680 A CN 106622680A
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- floating separation
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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
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
- B03D1/1406—Flotation machines with special arrangement of a plurality of flotation cells, e.g. positioning a flotation cell inside another
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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
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
- B03D1/16—Flotation machines with impellers; Subaeration machines
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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
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
- B03D2203/04—Non-sulfide ores
- B03D2203/08—Coal ores, fly ash or soot
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Abstract
The invention belongs to the field of floating separation operation in a coal washing technology, and particularly relates to a floating separation system. The floating separation system comprises a first-class floating separation tank and second-class floating separation tanks, wherein the second-class floating separation tanks are in left-right symmetry by using the first-class floating separation tank as a center; lower part cavities of tank bodies of the first-class floating separation tank and the second-class floating separation tanks are in the shape of an octagonal prism, and the area of a horizontal section of each of upper part cavities of the tank bodies of the first-class floating separation tank and the second-class floating separation tanks is greater than that of the horizontal section of each of the lower part cavities; stirrers are arranged in each of the tank bodies; a V-shaped foam guide plate is arranged in the middle position of the upper part of each of the tank bodies; foam shaving mechanisms are separately arranged on two plate bodies corresponding to the V-shaped foam guide plate, on the front side and on the rear side of each of the tank bodies; air inlet pipes, slurry inlets and slurry draining openings are arranged/formed on/in each of the tank bodies; the slurry inlets in each of the tank bodies are lower than the corresponding slurry draining openings in the same tank body; the slurry draining openings in the first-class floating separation tank are connected with the corresponding slurry inlets of the corresponding second-class floating separation tanks by slurry draining pipes; floating concentrate tanks are arranged on the front side and the rear side of each of the tank bodies, and the tank bottom of each of the floating concentrate tanks is oblique; and the volume of the first-class floating separation tank is greater than that of the second-class floating separation tanks. Through the adoption of the floating separation system disclosed by the invention, the separation effect of concentrate coal and middling coal can be improved, and stable and reliable product quality can be guaranteed.
Description
Technical field
The present invention relates to a kind of floating separation system, belongs to ore-dressing practice field.
Background technology
At present, in ore-dressing practice field Jing frequently with floating separation system, by taking coal industry as an example, coal in China industry
Flotation operation great majority use XJM---S type flotation machines in coal washing, belong to one kind of self-priming mechanical stirring flotation machine.
The type flotation machine is mainly made up of flotation cell, agitator and the part of foam scraping machine three, and flotation cell is cube structure, and horizontal cross-section is
Approximating square.Coal slurry is entered after flotation cell, and the hydrophobic coal grain after collecting agent effect adsorbs in the formed gas of agitator stirring
On bubble, form mineral laden bubble, with bubble floating to coal slurry surface, formation froth bed, hydrophilic spoil particle residence in coal slurry,
It is separated from one another so as to realize.Agitator has following effect：One is to make ore particle (coal grain and spoil) that suspension is in flotation cell
State, so as to create the condition that ore particle and bubble are fully contacted and collide；Two is to form negative pressure, sucks air, is generated in coal slurry
Bubble；Three is the dissolving and dispersion for promoting beneficiation reagent.
Motion morphology of the coal slurry in cell body be：1st, in the horizontal direction, coal slurry feeds from the centre of cell body one end, agitated
Device is sucked and thrown away, and the tail coal slurry Jing after FLOTATION SEPARATION is then discharged from the middle of the other end, into next groove.2nd, in Vertical Square
To the coal slurry into cell body sucks backward surrounding level and throws away by agitator, to encounter after cell wall be changed into from horizontal movement and transports upwards
It is dynamic, coal slurry surface is reached, a coal slurry turbulent flow body is defined in groove, so that ore particle is in a suspended state in groove.
Motion morphology of the mineral laden bubble in cell body be：Mineral laden bubble rises under the synergy of buoyancy and ascending current
To coal slurry surface, froth bed is formed, and be uniformly distributed.Foam near cell body both sides is then scraped by froth paddle, scrapes foam
Region afterwards is then flowed freely to the region by the foam on the inside of cell body and is supplemented again.With the continuous rotation of scraper plate, above-mentioned mistake
Journey moves in circles.
Above-mentioned technique has the following disadvantages：
1st, mineral laden bubble is moved upwards under the synergy of the ascending current and buoyancy that bring because of agitator stirring, is being connect
The original rate of climb in bottom and turbulence intensity are still maintained during nearly upper surface, therefore, there is phenomenon of turning over flower in coal slurry surface, causes
Extruding, collision are violent between foam, cause a large amount of bubble bursts, coal grain to come off from mineral laden bubble, and coal grain comes back to coal slurry
In, so as to reduce flotation efficiency and separating effect；
2nd, the mineral laden bubble on coal slurry surface is risen to, due to without the power in horizontal direction, therefore can be brought and asked as follows
Topic：
A, the froth bed for being formed are uniformly distributed on coal slurry surface, and the density difference of rear foam is only scraped by both sides foam
And it is slow to two lateral movements, the time one is grown, and foam also can vanish, and coal grain comes off from mineral laden bubble, and coal grain comes back to coal slurry
In, so as to reduce flotation efficiency and separating effect；
B, must lean on machine power discharge groove outside.
3rd, flotation cell horizontal cross-section is square, because the coal slurry powered radiation scope that agitator throws away is circle, is formed
Turbulent body be cylinder, therefore, turbulence intensity is weaker at four angles, region mixing buoyancy deficiency；
4th, tail coal is starched and discharged from the middle of cell body one end, and the tail coal for causing cell body both sides and the other end is starched and flowed laterally to
In the middle of the end, and there are the following problems：
A, flow direction are vertical with the coal slurry flow direction flowed up in groove, hinder and take the floating motion of coal foam；
B, path length, extend be trapped in cell body time, occupy cell body space, so as to change floating take coal bubble
The movement locus of foam, reduces effective sorting space of cell body, and then reduces the separating effect of flotation device；
5th, the capacity such as each flotation cell indistinction is arranged, technically unreasonable.
At present, the problems referred to above in coal floatation process are not also well solved.
The content of the invention
The technical problem to be solved in the present invention is：Overcome deficiency of the prior art, there is provided a kind of mineral laden bubble is vanished rate
It is low, can overflow automatically and tail coal slurry discharges the rational floating separation system in track, make smart, middle coal good separation effect, cleaned coal ashes
It is controllable, stable and reliable product quality.
Floating separation system of the present invention, in being including the one-level flotation cell positioned at centre and with one-level flotation cell
The secondary floatation groove that the heart is symmetrically arranged；The cell body of flotation cells at different levels includes upper chamber and lower cavity, the lower chamber bodily form
Shape be it is eight prismatic (describe for convenience, in defining the lower cavity of each flotation cell, with adjacent flotation cell just to rib and
The rib vertical with above-mentioned rib is positive rib, and other four ribs are slant edge, and slant edge is spaced with positive rib), the level of upper chamber is cut
Horizontal section area of the face area more than lower cavity；Agitator is equipped with inside cell body, the stirring vane of agitator is located at groove
In the lower cavity of body, the centre position on cell body top is respectively provided with V-type foam guide plate, two plates of correspondence V-type foam guide plate
Body is respectively provided with foam scraping machine in the forward and backward side of cell body, and air inlet pipe, stock inlet and thick liquid discharge mouth are equipped with cell body, each cell body
On stock inlet position be less than its thick liquid discharge mouth position, be respectively provided with a plasma discharge on four slant edges of one-level flotation cell lower cavity
Mouthful, two slant edges relative with one-level flotation cell are provided with stock inlet in secondary floatation groove lower cavity, and in addition two slant edges are provided with
Thick liquid discharge mouth, the thick liquid discharge mouth of one-level flotation cell connects the stock inlet of the secondary floatation groove of respective side by discharge pipe；Each cell body top
Front and rear sides be provided with floating essence groove, the bottom land for floating essence groove is inclined.During concrete application, the volume of one-level flotation cell is more than its both sides
Secondary floatation groove.
In floating separation system of the present invention：Flotation cell middle and lower parts at different levels cavity is prismatic using eight, overcomes biography
The turbulence intensity of the turbulent body that system cube structure is caused shows in the caused deep gouge occurred at corner of surrounding skewness
As, make turbulent body in cell body lower cavity turbulence intensity be distributed in surrounding it is more uniform；The horizontal cross-section face of upper chamber
Product is more than the horizontal section area of lower cavity, in the presence of agitator in lower cavity, the hydrophobic coal grain in coal slurry, spoil
Particle is sufficiently mixed with collecting agent, and the hydrophobic coal grain after collecting agent effect adsorbs the floating on bubble, and spoil particle is made in stirring
Also can move upwards with, when coal slurry moves up to upper chamber, because of the expansion of cross-sectional area, fluid resistance adds
Greatly, the coal slurry rate of climb slows down significantly, and slurry is become for layer fluid by turbulent body, and the mixing power that agitator is produced is gradually decreased as
0, the movement velocity of the spoil particle moved upwards mainly by stirring action slows down, and mineral laden bubble is then under original buoyancy
Continue to float such that it is able to the separating effect of mineral laden bubble and spoil particle is effectively improved, while alleviating between mineral laden bubble
Collision dynamics, reduces the shattered to pieces rate of mineral laden bubble, eliminates phenomenon of turning over flower；Thick liquid discharge mouth is located on the slant edge of cell body, makes cell body
In tail coal slurry from two sides discharge, so as to optimize movement locus, shorten tail coal slurry discharge distance, it is therefore prevented that in cell body
Tail coal slurry takes effective flotation space, improves the efficiency of separation of flotation device；V-type bubble is installed in the middle part on cell body top
Foam guide plate, after the mineral laden bubble for rising touches guide plate, will produce a side force, make foam to a lateral movement,
Cell body front and rear sides edge is reached straight, is just scraped by froth paddle when edge is moved to, outside self-service continuous spilling cell body,
Holdup time of the foam in cell body is reduced, the shattered to pieces rate of mineral laden bubble is reduced.Except above-mentioned points, whole floating separation system
It is arranged symmetrically centered on one-level flotation cell, power is arranged on demand, flotation adopts the closed circuit design of segmentation, while flotation cell at different levels
Capacity science is matched, and is saved space, has been saved investment, reduced power, reduces operating cost.
Preferably, be respectively provided with three-level flotation cell after described secondary floatation groove, the cell body internal structure of three-level flotation cell with
Secondary floatation groove is identical, and two slant edges relative with secondary floatation groove are provided with stock inlet in three-level flotation cell lower cavity, in addition
Two slant edges are provided with thick liquid discharge mouth, and the thick liquid discharge mouth of secondary floatation groove passes through discharge pipe and connect the three-level flotation cell of respective side to enter slurry
Mouthful, the thick liquid discharge mouth connection tail coal passing away on three-level flotation cell；Coal groove in the front and rear sides setting of three-level flotation cell, middle coal
Groove is connected by pipeline with the secondary floatation groove of respective side, and the pipeline to the one of secondary floatation groove is sloped downwardly.
Preferably, in the cell body of described flotation cells at different levels, the height of upper chamber accounts for the 1/6 of place cell body total height,
The horizontal section area of upper chamber is 1.67 times of lower cavity horizontal section area.The expansion of cell body upper level area of section
Greatly, the turbulent body in cell body is made to become for layer fluid on the top of cell body, the climbing power of mineral laden bubble is in only buoyant effect
Lower rising, the rate of climb is substantially reduced, so as to prevent the ore deposit for rising mineral laden bubble at arrival coal slurry surface with coal slurry surface
Change bubble sharp impacts and vanish, improve the stability of mineral laden bubble；And the turbulent body of cell body is changed on the top of cell body
Layer fluid, it is to avoid phenomenon of turning over flower, alleviates the extruding and collision between mineral laden bubble, reduces vanishing for mineral laden bubble
Rate.
Preferably, the upper chamber shape of described flotation cell cell bodies at different levels is square, upper chamber and lower cavity
Between pass through a conical cavity rounding off.
Preferably, the driving means of described agitator are frequency-conversion and speed-regulation motor, can be adjusted according to actual conditions and be stirred
The velocity of rotation of device is mixed, so that coal slurry mixing intensity and bubble production volume keep stable.
Preferably, described foam scraping machine is froth paddle；It is further preferred that the height of described froth paddle can
Adjust, froth paddle can be made using supra polymer low-resistance material (such as plastic plate, plank).
Preferably, each floating smart groove positioned at floating separation system the same side is communicated, i.e., the front side of floating separation system is each
Floating essence groove forms a cell body, and each floating smart groove of rear side also forms a cell body, and the two cell bodies can simultaneously collect one-level
Cleaned coal in flotation cell, secondary floatation groove.
Preferably, Wind volume detector and intake valve are installed, Wind volume detector, intake valve connect in described air inlet pipe
Connected control system, by Wind volume detector the intake of real-time detection air inlet pipe is capable of, and signal is passed into control system, is entered
And the aperture of intake valve, the air inflow of precise control air inlet pipe are controlled to adjust at any time according to actual conditions.
Preferably, the shaft of described agitator is quill shaft, and air inlet pipe is located at the top of agitator, itself and quill shaft
It is connected.
Preferably, described thick liquid discharge mouth is at lower cavity from top to bottom 2/3.
The operation principle and process of above-mentioned floating separation system is as follows：
1. coal slurry Jing stock inlets feed one-level flotation trench bottom, and coal slurry is sucked and from periphery from the middle of the bottom of agitator
Throw away, the coal slurry for throwing away is encountered and just moved upwards after the inwall of eight prismatic lower cavities, and form one in lower cavity
Turbulent body.When coal slurry reach lower cavity top after, due to the expansion of sectional area, the coal slurry rate of climb slows down significantly, slurry by
Turbulent body becomes for layer fluid, eliminates phenomenon of turning over flower；
2. outside air is sucked and together thrown away with the coal slurry for sucking by agitator by air inlet pipe, is produced in coal slurry big
Amount bubble, the coal grain Jing after flotation agent effect adsorbs on bubble, just defines mineral laden bubble, and mineral laden bubble rises in turbulent body
Rise rapidly under the synergy of coal slurry stream and buoyancy, after the turbulent body of disengaging is risen into layer fluid, climbing power only remains floating
Power, the rate of climb slows down significantly, alleviates the collision dynamics between bubble, reduces the shattered to pieces rate of mineral laden bubble, comes with rising
Mineral laden bubble be on the increase, just define stable froth bed on coal slurry surface；
3. mineral laden bubble is encountered after V-type foam guide plate in uphill process, will produce a side force, orders about mineralising gas
Steep to a lateral movement, just scraped by froth paddle when the edge of upper chamber is moved to, the foam for scraping is head coal product,
It is entered in floating essence groove, final to enter floating sperm pump room along floating essence groove, and the tail coal slurry in one-level flotation cell is then by the row on slant edge
Slurry mouth and discharge pipe enter the secondary floatation groove of its both sides；
4. the floatation process in secondary floatation groove ibid, the mineral laden bubble that Jing froth paddles are scraped also into floating smart groove simultaneously
Floating sperm pump room is entered along floating essence groove, the tail coal slurry in secondary floatation groove enters three-level flotation cell by thick liquid discharge mouth and discharge pipe；
5. ibid, but the mineral laden bubble that its froth paddle is scraped can enter three-level flotation to the floatation process in three-level flotation cell
In the middle coal groove of groove front and rear sides, and by carrying out flotation again in Pipeline transport time secondary floatation groove, in three-level flotation cell
Tail coal slurry is then directly entered in tail coal pump chamber by thick liquid discharge mouth and tail coal passing away.
The present invention is had an advantageous effect in that compared with prior art：
1st, the expansion of flotation cell middle and upper part cavity horizontal section areas at different levels, the turbulent body for making cell body becomes on the top of cell body
For layer fluid, the rate of climb of mineral laden bubble is substantially reduced, and improves the stability of mineral laden bubble；Simultaneously in cell body lower cavity
Turbulent body become layer fluid in upper chamber, the mixing power that agitator is produced is gradually decreased as 0, mainly by stirring action
The movement velocity of the spoil particle for moving upwards slows down, and mineral laden bubble then continues to float under original buoyancy, so as to
The separating effect of mineral laden bubble and spoil particle is enough effectively improved, while alleviating extruding and collision between mineral laden bubble, is reduced
The shattered to pieces rate of mineral laden bubble, eliminates phenomenon of turning over flower；
2nd, the lower cavity of flotation cells at different levels is prismatic using eight, makes the turbulence intensity of turbulent body more equal in surrounding distribution
It is even, solve the problems, such as the deep gouge easily occurred at corner in traditional square cell body；
3rd, the thick liquid discharge mouth of flotation cells at different levels is located on the slant edge of cell body lower cavity, tail coal slurry is discharged from two sides, is carried
The high efficiency of separation of flotation device；
4th, the mineral laden bubble of rising can be oriented to by V-type foam guide plate, is made mineral laden bubble to front and rear sides
Motion, reduces holdup time of the mineral laden bubble in cell body, reduces the shattered to pieces rate of mineral laden bubble；
5th, agitator rotates stepless speed regulation, and air inflow is precisely controlled, and coal slurry mixing intensity, bubble production volume are stable；
6th, whole floating separation system is arranged symmetrically centered on one-level flotation cell, and flotation adopts the closed circuit design of segmentation, together
When flotation cells at different levels cell body capacity science difference matching, save space, saved investment, reduced power, reduce fortune
Row cost.
Description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the profile for omitting air inlet pipe and the one-level flotation cell after agitator.
In figure：1st, one-level flotation cell；2nd, upper chamber；3rd, lower cavity；4th, agitator；5th, air inlet pipe；6th, essence groove is floated；7、
Discharge pipe；8th, secondary floatation groove；9th, pipeline；10th, middle coal groove；11st, three-level flotation cell；12nd, tail coal passing away；13rd, tail coal pump
Room；14th, sperm pump room is floated；15th, slant edge；16th, positive rib；17th, V-type foam guide plate；18th, froth paddle.
Specific embodiment
Embodiments of the invention are described further below in conjunction with the accompanying drawings：
As shown in Figures 1 to 3, floating separation system of the present invention includes 1, two secondary floatations of an one-level flotation cell
Groove 8 and two three-level flotation cells 11, wherein, one-level flotation cell 1 is centrally located, and the both sides of one-level flotation cell 1 respectively arrange one
Individual secondary floatation groove 8 and (the i.e. whole floating separation system symmetrical cloth centered on one-level flotation cell 1 of three-level flotation cell 11
Put).Concrete structure is as follows：
In the cell body of flotation cells at different levels, the shape of upper chamber 2 is square, and the shape of lower cavity 3 is eight and prismatic (is
Facilitate description, in defining the lower cavity 3 of each flotation cell：With adjacent flotation cell just to rib and the rib vertical with above-mentioned rib
For positive rib 16 --- as front；Other four ribs are slant edge 15 --- as side；Slant edge 15 is spaced with positive rib 16),
By a conical cavity rounding off between upper chamber 2 and lower cavity 3, the horizontal section area of upper chamber 2 is more than bottom
The horizontal section area of cavity 3；
Agitator 4 is equipped with inside cell body, the stirring vane of agitator 4 is located in the lower cavity 3 of cell body, cell body top
Centre position be respectively provided with V-type foam guide plate 17, in the coal slurry that its underpart is submerged in cell body, the two of V-type foam guide plate 17
Angle between plate body is 80 °, and two plate bodys of correspondence V-type foam guide plate 17 are respectively provided with foam and scrape in the forward and backward side of cell body
Plate 18, upper surface position of the upper surface position of two plate bodys higher than froth paddle 18 in V-type foam guide plate 17；
Air inlet pipe 5, stock inlet and thick liquid discharge mouth are equipped with cell body, the stock inlet position on each cell body is less than its thick liquid discharge mouth
Position, is respectively provided with a thick liquid discharge mouth, the lower cavity 3 of secondary floatation groove 8 on four slant edges 15 of the lower cavity 3 of one-level flotation cell 1
Upper two slant edges 15 relative with one-level flotation cell 1 are provided with stock inlet, and in addition two slant edges 15 are provided with thick liquid discharge mouth, one-level flotation cell
1 thick liquid discharge mouth by discharge pipe 7 connect respective side secondary floatation groove 8 the lower cavity 3 of stock inlet three-level flotation cell 11 on
Two relative slant edges 15 of secondary floatation groove 8 are provided with stock inlet, and in addition two slant edges 15 are provided with thick liquid discharge mouth, secondary floatation groove 8
Thick liquid discharge mouth connects the stock inlet of the three-level flotation cell 11 of respective side by discharge pipe 7, and the thick liquid discharge mouth on three-level flotation cell 11 passes through
Tail coal passing away 12 is connected with tail coal pump chamber 13；
The front and rear sides of one-level flotation cell 1 and secondary floatation groove 8 respectively arranges a floating essence groove 6, floats essence groove 6 and floating sperm pump room
14 connections, the bottom land for floating essence groove 6 is downward-sloping to the one end near floating sperm pump room 14 from the one end away from floating sperm pump room 14；
Coal groove 10 in the front and rear sides setting of three-level flotation cell 11, middle coal groove 10 is floated by pipeline 9 with two grades of respective side
Groove 8 is selected to connect, the pipeline 9 is sloped downwardly to the one of secondary floatation groove 8；
Secondary floatation groove 8, three-level flotation cell 11 of the volume of one-level flotation cell 1 more than its both sides.
In the present embodiment, described flotation cells at different levels are (including one-level flotation cell 1, secondary floatation groove 8 and three-level flotation cell
11) in cell body, the height of upper chamber 2 accounts for the 1/6 of place cell body total height, under the horizontal section area of upper chamber 2 is
1.67 times of the horizontal section area of portion's cavity 3；The shaft of agitator 4 is quill shaft, and air inlet pipe 5 is located at the top of agitator 4,
It is connected with quill shaft；The driving means of agitator 4 are frequency-conversion and speed-regulation motor；The height adjustable of froth paddle 18, it is adopted
Made with plastic plate；Wind volume detector and intake valve are installed, with the air inflow of precise control air inlet pipe 5 in air inlet pipe 5；Plasma discharge
Mouth is at lower cavity 3 from top to bottom 2/3.
In whole floating separation system, flotation cell middle and lower parts at different levels cavity 3 is prismatic using eight, overcomes traditional cube knot
The turbulence intensity of the turbulent body being configured to makes cell body in the caused deep gouge phenomenon occurred at corner of surrounding skewness
The turbulence intensity of the turbulent body in lower cavity 3 is distributed more uniform in surrounding；It is always high that the height of upper chamber 2 accounts for place cell body
The 1/6 of degree, the horizontal section area of upper chamber 2 is 1.67 times of the horizontal section area of lower cavity 3, in lower cavity 3
In the presence of agitator 4, the hydrophobic coal grain, spoil particle and collecting agent in coal slurry is sufficiently mixed, hydrophobic after collecting agent effect
Coal grain adsorbs the floating on bubble, and spoil particle also can be moved upwards under stirring, on coal slurry is moved up to
During portion's cavity 2, because of the expansion of cross-sectional area, fluid resistance is increased, and the coal slurry rate of climb slows down significantly, and slurry is changed into from turbulent body
Layer fluid, the mixing power that agitator 4 is produced is gradually decreased as 0, the fortune of the spoil particle moved upwards mainly by stirring action
Dynamic speed slows down, and mineral laden bubble then continues to float under original buoyancy such that it is able to effectively improve mineral laden bubble and cash
The separating effect of stone particle, while alleviating the collision dynamics between mineral laden bubble, reduces the shattered to pieces rate of mineral laden bubble, eliminates
Phenomenon of turning over flower；Thick liquid discharge mouth is located on the slant edge 15 of cell body, the tail coal in cell body is starched from two sides and is discharged, so as to optimize motion
Track, shortens tail coal slurry and discharges distance, it is therefore prevented that the tail coal slurry in cell body takes effective flotation space, improves flotation device
The efficiency of separation；V-type foam guide plate 17 is installed in the middle part on cell body top, when the mineral laden bubble for rising touches guiding
After plate, a side force will be produced, make foam to a lateral movement, cell body front and rear sides edge is reached straight, when moving to side
Just scraped by froth paddle 18 at edge, outside self-service continuous spilling cell body, reduce holdup time of the foam in cell body, reduced
The shattered to pieces rate of mineral laden bubble.Except above-mentioned points, whole floating separation system is arranged symmetrically centered on one-level flotation cell 1, and power is pressed
Need to arrange, floating product classification, precision, yield are designed using closed loop, while the capacity science matching of flotation cell at different levels, saves
Space, investment saved, reduced power, having reduced operating cost.
In the present embodiment, the operation principle and process of whole floating separation system is as follows：
1. coal slurry Jing stock inlets feed the bottom of one-level flotation cell 1, and coal slurry is sucked and from week from the middle of the bottom of agitator 4
While throw away, the coal slurry for throwing away is encountered and is just moved upwards after the inwall of eight prismatic lower cavities 3, and is formed in lower cavity 3
One turbulent body.After coal slurry reaches the top of lower cavity 3, due to the expansion of sectional area, the coal slurry rate of climb slows down significantly, slurry
Body is become for layer fluid by turbulent body, eliminates phenomenon of turning over flower；
2. outside air is sucked and together thrown away with the coal slurry for sucking by agitator 4 by air inlet pipe 5, is produced in coal slurry
A large amount of bubbles, the coal grain Jing after flotation agent effect adsorbs on bubble, just defines mineral laden bubble, and mineral laden bubble is on turbulent body
Rise rapidly under the synergy for rising coal slurry stream and buoyancy, after the turbulent body of disengaging is risen into layer fluid, climbing power is only remained
Buoyancy, the rate of climb slows down significantly, alleviates the collision dynamics between bubble, the shattered to pieces rate of mineral laden bubble is reduced, with rising
Being on the increase for the mineral laden bubble for coming, just defines stable froth bed on coal slurry surface；
3. mineral laden bubble is encountered after V-type foam guide plate 17 in uphill process, will produce a side force, orders about mineralising
Bubble is just scraped by froth paddle 18 to a lateral movement when the edge of upper chamber 2 is moved to, and the foam for scraping is cleaned coal
Product, it is entered in floating essence groove 6, final to enter floating sperm pump room 14 along floating essence groove 6, and the tail coal slurry in one-level flotation cell 1 then passes through
Thick liquid discharge mouth and discharge pipe 7 on slant edge 15 enters the secondary floatation groove 8 of its both sides；
4. ibid, the mineral laden bubble that Jing froth paddles 18 are scraped is also into floating smart groove 6 for the floatation process in secondary floatation groove 8
In and along floating essence groove 6 enter floating sperm pump room 14, the tail coal slurry in secondary floatation groove 8 enters three by thick liquid discharge mouth and discharge pipe 7
Level flotation cell 11；
5. ibid, but the mineral laden bubble that its froth paddle 18 is scraped can enter three-level to the floatation process in three-level flotation cell 11
In the middle coal groove 10 of the front and rear sides of flotation cell 11, and it is transmitted back in secondary floatation groove 8 by pipeline 9 and carries out flotation, three-level again
Tail coal slurry in flotation cell 11 is then directly entered in tail coal pump chamber 13 by thick liquid discharge mouth and tail coal passing away 12.
Claims (10)
1. a kind of floating separation system, it is characterised in that：Including the one-level flotation cell (1) positioned at centre and with one-level flotation cell
(1) the secondary floatation groove (8) being symmetrically arranged centered on；
The cell body of flotation cells at different levels includes upper chamber (2) and lower cavity (3), lower cavity (3) shape be it is eight prismatic,
Horizontal section area of the horizontal section area of upper chamber (2) more than lower cavity (3)；Agitator is equipped with inside cell body
(4), the stirring vane of agitator (4) is located in the lower cavity (3) of cell body, and the centre position on cell body top is respectively provided with V-type bubble
Foam guide plate (17), two plate bodys of correspondence V-type foam guide plate (17) are respectively provided with foam scraping machine, groove in the forward and backward side of cell body
Air inlet pipe (5), stock inlet and thick liquid discharge mouth are equipped with body, the stock inlet position on each cell body be less than its thick liquid discharge mouth position, one
A thick liquid discharge mouth, secondary floatation groove (8) lower cavity are respectively provided with four slant edges (15) of level flotation cell (1) lower cavity (3)
(3) two slant edges (15) relative with one-level flotation cell (1) on are provided with stock inlet, and in addition two slant edges (15) are provided with thick liquid discharge mouth,
The thick liquid discharge mouth of one-level flotation cell (1) connects the stock inlet of the secondary floatation groove (8) of respective side by discharge pipe (7)；
The front and rear sides on each cell body top is provided with floating essence groove (6), and the bottom land for floating essence groove (6) is inclined.
2. floating separation system according to claim 1, it is characterised in that：It is respectively provided with after described secondary floatation groove (8)
Three-level flotation cell (11), the cell body internal structure of three-level flotation cell (11) is identical with secondary floatation groove (8), three-level flotation cell (11)
Two slant edges (15) relative with secondary floatation groove (8) in lower cavity (3) are provided with stock inlet, and in addition two slant edges (15) are provided with
Thick liquid discharge mouth, the thick liquid discharge mouth of secondary floatation groove (8) connects the stock inlet of the three-level flotation cell (11) of respective side by discharge pipe (7),
Thick liquid discharge mouth connection tail coal passing away (12) on three-level flotation cell (11)；During the front and rear sides of three-level flotation cell (11) is arranged
Coal groove (10), middle coal groove (10) is connected by pipeline (9) with the secondary floatation groove (8) of respective side, and the pipeline (9) is to secondary floatation
The one of groove (8) is sloped downwardly.
3. floating separation system according to claim 1 and 2, it is characterised in that：In described flotation cell cell bodies at different levels, on
The height of portion's cavity (2) accounts for the 1/6 of place cell body total height, and the horizontal section area of upper chamber (2) is lower cavity (3) water
1.67 times of plane section area.
4. floating separation system according to claim 1 and 2, it is characterised in that：Described flotation cell cell bodies at different levels it is upper
Portion's cavity (2) shape be it is square, between upper chamber (2) and lower cavity (3) pass through a conical cavity rounding off.
5. floating separation system according to claim 1 and 2, it is characterised in that：Described foam scraping machine is froth paddle
(18)。
6. floating separation system according to claim 5, it is characterised in that：The height of described froth paddle (18) can
Adjust.
7. floating separation system according to claim 1, it is characterised in that：Positioned at each floating of floating separation system the same side
Smart groove (6) communicates.
8. floating separation system according to claim 1 and 2, it is characterised in that：Air quantity is installed in described air inlet pipe (5)
Detection means and intake valve, Wind volume detector, intake valve are all connected with control system.
9. floating separation system according to claim 1 and 2, it is characterised in that：The shaft of described agitator (4) is
Quill shaft, positioned at the top of agitator (4), it is connected air inlet pipe (5) with quill shaft.
10. floating separation system according to claim 1 and 2, it is characterised in that：Described thick liquid discharge mouth is located at lower cavity
(3) from top to bottom at 2/3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611230983.3A CN106622680A (en) | 2016-12-28 | 2016-12-28 | Floating separation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611230983.3A CN106622680A (en) | 2016-12-28 | 2016-12-28 | Floating separation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106622680A true CN106622680A (en) | 2017-05-10 |
Family
ID=58833027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611230983.3A Withdrawn CN106622680A (en) | 2016-12-28 | 2016-12-28 | Floating separation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106622680A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107029895A (en) * | 2017-06-15 | 2017-08-11 | 西南科技大学 | Particulate coal stage flotation machine |
| CN107179216A (en) * | 2017-06-13 | 2017-09-19 | 西南科技大学 | A kind of mineral grain separating and sampling unit |
| CN108554649A (en) * | 2018-07-03 | 2018-09-21 | 葫芦岛八家矿业股份有限公司 | A kind of floator guiding groove body |
| CN109655376A (en) * | 2018-09-26 | 2019-04-19 | 珠海市新万山仪表有限公司 | A kind of novel tuning fork fork body of the anti-delay of UV type structural I-beam |
| CN111687133A (en) * | 2020-07-09 | 2020-09-22 | 新疆维吾尔自治区煤炭煤层气测试研究所(新疆维吾尔自治区煤炭产品质量检测中心) | Automatic coal washing and ash reducing device |
| CN115041295A (en) * | 2022-06-16 | 2022-09-13 | 中煤科工集团北京华宇工程有限公司 | Coal slime flotation and recleaning process |
-
2016
- 2016-12-28 CN CN201611230983.3A patent/CN106622680A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107179216A (en) * | 2017-06-13 | 2017-09-19 | 西南科技大学 | A kind of mineral grain separating and sampling unit |
| CN107029895A (en) * | 2017-06-15 | 2017-08-11 | 西南科技大学 | Particulate coal stage flotation machine |
| CN107029895B (en) * | 2017-06-15 | 2019-10-18 | 西南科技大学 | Particulate coal stage flotation machine |
| CN108554649A (en) * | 2018-07-03 | 2018-09-21 | 葫芦岛八家矿业股份有限公司 | A kind of floator guiding groove body |
| CN109655376A (en) * | 2018-09-26 | 2019-04-19 | 珠海市新万山仪表有限公司 | A kind of novel tuning fork fork body of the anti-delay of UV type structural I-beam |
| CN111687133A (en) * | 2020-07-09 | 2020-09-22 | 新疆维吾尔自治区煤炭煤层气测试研究所(新疆维吾尔自治区煤炭产品质量检测中心) | Automatic coal washing and ash reducing device |
| CN115041295A (en) * | 2022-06-16 | 2022-09-13 | 中煤科工集团北京华宇工程有限公司 | Coal slime flotation and recleaning process |
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