CN209188996U - Classifying cyclone, slime separation device and separation system - Google Patents

Abstract

The utility model discloses a kind of classifying cyclone, slime separation device and separation systems, the classifying cyclone includes: cyclone body and conversion head, cyclone body has classifying cyclone feed inlet, classifying cyclone overflow port and classifying cyclone underflow opening, there is conversion head conversion head import and conversion head to export, conversion head import is connect with classifying cyclone underflow opening, and conversion head outlet has angle with conversion head import.Thus, when can not only reduce classifying cyclone work, the probability of air column is generated in the inside of cyclone body, to improve the classification efficiency of classifying cyclone, and there is angle between conversion head outlet and conversion head import, to buffer coal slurry stream by the inner wall of conversion head, the flow velocity of coal slurry stream can be reduced, to weaken the impact after coal slime outflow classifying cyclone to subsequent processing device.

Description

Classifying cyclone, slime separation device and separation system

Technical field

The utility model relates to slime separation technical fields, fill in particular to a kind of classifying cyclone, slime separation It sets and separation system.

Background technique

In the related technology, it in order to sort coal slime, needs to be classified (i.e. to coal coal slime by classifying cyclone Mud carries out the classification in granularity), and then point in density (is carried out to coal slime by liquid-solid fluid bed sorted to coal slime Choosing), with the coal slime satisfied the use demand.

But liquid-solid fluid bed and classifying cyclone is during the work time, is not only easy to appear air in classifying cyclone Column reduces the classification efficiency of classifying cyclone, and the underflow of classifying cyclone can flow directly into fluidized-bed layer, fluidizes admittedly to liquid Bed causes to impact, and then reduces liquid-solid fluid bed separating effect.

Utility model content

The utility model aims to solve at least one of the technical problems existing in the prior art.For this purpose, the utility model mentions The classification efficiency of a kind of classifying cyclone out, the classifying cyclone is higher and the coal slime that is flowed out by classifying cyclone underflow opening It is smaller to liquid-solid fluid bed impact.

The utility model has also been proposed a kind of slime separation device with above-mentioned classifying cyclone.

The utility model also proposes a kind of separation system with above-mentioned slime separation device.

Classifying cyclone according to the utility model first aspect embodiment includes: cyclone body and conversion head, institute Cyclone body is stated with classifying cyclone feed inlet, classifying cyclone overflow port and classifying cyclone underflow opening, the conversion There is head conversion head import and conversion head to export, and the conversion head import is connect with the classifying cyclone underflow opening, and described turn Changing head outlet and conversion head import has angle.

According to the classifying cyclone of the utility model embodiment, revolve conversion head import (i.e. with classifying cyclone underflow opening Flow the underflow opening of device ontology) connection, it connect conversion head with cyclone body in the lower section of cyclone body, can reduce When classifying cyclone works, the probability of air column is generated in the inside of cyclone body, to improve the classification of classifying cyclone Efficiency, and there is angle between conversion head outlet and conversion head import, thus after coal slime outflow classifying cyclone underflow opening, according to It is secondary flow through conversion head import, conversion head outlet, and by conversion head outlet outflow classifying cyclone, with conversion head import with turn It changes between head outlet, coal slurry stream is buffered by the inner wall of conversion head, the flow velocity of coal slurry stream can be reduced, to weaken coal slime outflow point Impact after grade cyclone to subsequent processing device.

Some embodiments according to the present utility model, the conversion head exit normal are arranged in the conversion head import.

Optionally, the conversion head includes expansion pipe and stop part, and the expansion pipe has tubaeform expansion end, described Stop part is connect with the expansion end, and the conversion head outlet is limited between the stop part and the expansion end.

Further, one end towards the expansion pipe of the stop part has the grafting being inserted into the expansion pipe convex Portion.

Further, the grafting protrusion is extending at least partially into the classifying cyclone underflow opening.

In some embodiments, one end away from the expansion pipe of the stop part is the cone gradually tapered up from inside to outside Shape.

Further, the stop part includes overhead gage and lower baffle plate, and the lower baffle plate and the overhead gage are removably It is connected, the overhead gage is oppositely arranged and connect with the expansion pipe, and limits the conversion head outlet between the two.

Optionally, the cross section of the conversion head outlet is in first increases and then decreases trend from up to down.

Optionally, the upper surface of the overhead gage and the lower end surface of the lower baffle plate are formed as the appearance of the stop part Face, the upper surface and the lower end surface are fusiform curved surface.

Some embodiments according to the present utility model, the overhead gage and the lower baffle plate limit closed chamber jointly, The lower end of the overhead gage is equipped with upper swivel nut, and the upper end of the lower baffle plate is equipped with lower swivel nut, the upper swivel nut and the lower swivel nut Threaded and both be located at the closed chamber in.

Slime separation device according to the utility model second aspect embodiment includes: that classifying cyclone and liquid fluidize admittedly Bed, the classifying cyclone have the classifying cyclone underflow opening positioned at bottom, and the liquid-solid fluid bed lower part has water inlet Mouthful, the liquid-solid fluid bed bottom has liquid-solid fluid bed underflow opening, and there is liquid to fluidize admittedly at the liquid-solid fluid bed top Bed overflow port, the classifying cyclone described liquid-solid fluid bed and described classification eddy flow through the liquid-solid fluid bed overflow port insertion Device underflow opening is located at described liquid-solid fluid bed interior.

The underflow opening lower section of some embodiments according to the present utility model, the classifying cyclone is equipped with stop part, described The side wall of stop part and the classifying cyclone underflow opening limits conversion head outlet jointly, and the conversion head outlet is generally vertically In the axial direction of the classifying cyclone.

In some embodiments, the stop part and the classifying cyclone and described any of liquid-solid fluid bed connect It connects.

Further, the classifying cyclone and it is described it is liquid-solid fluid bed connection or be placed in it is described it is liquid-solid fluid bed on The maintenance channel connection of side.

Slime separation system according to the utility model third aspect embodiment includes: coal slime storage device, such as above-mentioned reality Apply slime separation device described in example, coarse medium slime screening plant, coarse coal slurry screening plant and cleaned coal flotation unit, institute Coal slime storage device is stated for storing coal slime raw material, the discharge port of the coal slime storage device and the classifying cyclone feed inlet Connection, the classifying cyclone have classifying cyclone overflow port, and the liquid-solid fluid bed bottom has classifying cyclone bottom Head piece, the coarse medium slime screening plant include high frequency shale shaker, concentrator and the first filter press, the high frequency shale shaker Suitable for sifting out coarse medium slime and supplying liquid after sieve to concentrator, the solid outlet of concentrator is connect with the first filter press, and The liquid outlet of concentrator is connect with the liquid outlet of the first filter press, and the solid outlet of the first filter press is suitable for discharge tail coal Mud, the coarse coal slurry screening plant include concentrate cyclone and the straight-line oscillation that connect with the underflow opening of concentrate cyclone Sieve, the underflow opening of concentrate cyclone are connect with linear vibrating screen, and linear vibrating screen is suitable for sifting out coarse coal slurry, the cleaned coal flotation Device includes kaskad apparatus for pre-flotation pulp conditioning, flotation column and the second filter press, liquid and concentrate cyclone after the linear vibrating screen sieve Overflow port, classifying cyclone overflow port converge and be connected to the feed inlet of kaskad apparatus for pre-flotation pulp conditioning, the outlet of the kaskad apparatus for pre-flotation pulp conditioning Connect with flotation column, the bottom outlet of the flotation column is connect with the feed inlet of the concentrator, the overflow port of the flotation column with The feed inlet of second filter press is connected to, and the solid outlet of second filter press is suitable for discharge floatation clean coal, the filters pressing The liquid outlet of machine is suitable for being connected to the feed inlet of kaskad apparatus for pre-flotation pulp conditioning.

The additional aspect and advantage of the utility model will be set forth in part in the description, partially will be from following description In become obvious, or recognized by the practice of the utility model.

Detailed description of the invention

The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will Become obvious and be readily appreciated that, in which:

Fig. 1 is the schematic diagram according to a kind of classifying cyclone of the utility model embodiment；

Fig. 2 is the schematic diagram according to a kind of conversion head of classifying cyclone of the utility model embodiment；

Fig. 3 is the partial enlargement diagram of a-quadrant in Fig. 2；

Fig. 4 is the main view according to the slime separation device of the utility model embodiment；

Fig. 5 is the top view according to the slime separation device of the utility model embodiment；

Fig. 6 is the device connection figure according to the slime separation system of the utility model embodiment.

Appended drawing reference:

Slime separation device 100, classifying cyclone 110, cyclone body 111, classifying cyclone underflow opening 112, classification Cyclone overflow port 113, classifying cyclone feed inlet 114, liquid-solid fluid bed 120, liquid-solid fluid bed underflow opening 121, liquid flows admittedly Change bed overflow port 122, conversion head 130, stop part 131, overhead gage 1311, grafting protrusion 13111, upper swivel nut 13112, lower baffle plate 1312, lower swivel nut 13121 expands pipe 132, expansion end 1321, conversion head import 133, conversion head outlet 134, executing agency 140, pressure sensor 141, compression bar 142,

Coal slime storage device 200,

Coarse medium slime screening plant 300, high frequency shale shaker 310, concentrator 320, the first filter press 330,

Coarse coal slurry screening plant 400, concentrate cyclone 410, linear vibrating screen 420,

Cleaned coal flotation unit 500, kaskad apparatus for pre-flotation pulp conditioning 510, flotation column 520, the second filter press 530,

Pulp pump 600,

Coarse medium slime a, coarse coal slurry b, tail coal mud c, floatation clean coal d, recirculated water e.

Specific embodiment

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar unit or unit with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model Limitation.

Below with reference to Fig. 1 to Fig. 6 description according to the slime separation device 100 of the utility model embodiment.

As shown in Figure 1, according to the classifying cyclone 110 of the utility model embodiment include: cyclone body 111 and turn First 130 are changed, cyclone body 111 has classifying cyclone feed inlet 114, classifying cyclone overflow port 113 and classifying cyclone Underflow opening 112, conversion head 130 have conversion head import 133 and conversion head outlet 134, conversion head import 133 and cyclone sheet The classifying cyclone underflow opening 112 of body 111 connects, and conversion head outlet 134 and the conversion head import 133 of conversion head 130 have folder Angle.

According to the classifying cyclone 110 of the utility model embodiment, make conversion head import 133 and the eddy flow of conversion head 130 The classifying cyclone underflow opening 112 (i.e. the underflow opening of cyclone body 111) of device ontology 111 connects, and conversion head 130 is not only made to exist The lower section of cyclone body 111 is connect with cyclone body 111, when can reduce the work of classifying cyclone 110, in cyclone sheet The inside of body 111 generates the probability of air column, to improve the classification efficiency of classifying cyclone 110, and conversion head outlet 134 There is angle between conversion head import 133, thus after coal slurry stream outflow classifying cyclone underflow opening 113, followed by conversion Head import 133, conversion head outlet 134, and by 134 outflow classifying cyclone 110 of conversion head outlet, to be exported in conversion head Between 134 and conversion head import 133, coal slurry stream is buffered by the inner wall of conversion head 130, the flow velocity of coal slurry stream can be reduced, with Impact after decrease coal slime outflow classifying cyclone 110 to subsequent processing device.

The working principle of classifying cyclone 110 is as follows: unassorted coal slime is entered point by classifying cyclone feed inlet 114 In the cyclone body 111 of grade cyclone 110, higher centrifugal force is generated in cyclone body 111, and then small particle coal slime exists Centrifugal force moves upward under driving, and overflows classifying cyclone 110 by classifying cyclone overflow port 113, and big partial size coal slime is downward It deposits and is flowed towards classifying cyclone underflow opening 112, flow out the big partial size coal slime of classifying cyclone underflow opening 112 by conversion head Import 133 enters overhead gage 1311 and expands in the chamber between pipe 132, and by 134 outflow of conversion head outlet, is flowing out Flowing velocity is reduced by stop part 131 in journey and changes the direction of motion, to complete the classification process to coal slime.

As depicted in figs. 1 and 2, the conversion head outlet 134 of conversion head 130 is arranged perpendicular to conversion head import 133.Namely It says, under the action of conversion head 130, the coal slurry stream of outflow cyclone body 111 can be by the flow transition Cheng Jing of axial direction Flowing to direction to reduce the impact of the underflow of classifying cyclone 110 to bed in liquid-solid fluid bed 120, and can make point The underflow of grade cyclone 110 uniformly, rapidly disperses in liquid-solid fluid bed 120.

As shown in Fig. 2, conversion head 130 includes expansion pipe 132 and stop part 131, expansion pipe 132 has tubaeform expansion End 1321, stop part 131 is fixed on expansion end 1321 by bolt and nut, limits between stop part 131 and expansion end 1321 The conversion head outlet 134 of conversion head 130.

Specifically, expansion pipe 132 is connect with the outer wall of cyclone body 111, stop part 131 is located under expansion pipe 132 Side, and the expansion end 1321 for expanding pipe 132 is fixed on by bolt and nut.

In this way, increasing the area of passage of conversion head 130, and then tubaeform expansion end by setting expansion pipe 132 1321 can tentatively reduce the axial velocity of coal slurry stream, and the conversion by limiting between stop part 131 and expansion end 1321 First 130 conversion head outlet 134 further decreases the axial velocity of coal slurry stream, while the coal slime flowed out from conversion head outlet 134 The radial velocity with a certain size is flowed, is conducive to it and is rapidly uniformly distributed in liquid-solid fluid bed 120 bed.

In specific embodiment shown in Fig. 2, one end of the direction expansion pipe 132 of stop part 131 has insertion expansion Grafting protrusion 13111 in pipe 132, grafting protrusion 13111 are extending at least partially into classifying cyclone underflow opening 112.It inserts as a result, Classifying cyclone underflow can be prevented by entering to the grafting protrusion 13111 in the classifying cyclone underflow opening 112 of cyclone body 111 The hypotony of 112 central areas of mouth, the coal slurry stream of 112 lower part of classifying cyclone underflow opening is sucked back in cyclone body 111 The appearance of the phenomenon that portion, and further eliminate the generation of air column.

Optionally, one end away from expansion pipe 132 of stop part 131 is the taper gradually tapered up from inside to outside.Make as a result, The surface of stop part 131 is rounder and more smooth, uniformly, to reduce blocking of the stop part 131 to coal slurry stream, and then is effectively prevented conversion The accumulation of 134 region coal slurry streams of head outlet, to further improve classification efficiency.

As shown in Fig. 2, stop part 131 includes overhead gage 1311 and lower baffle plate 1312, lower baffle plate 1312 and overhead gage 1311 It is detachably connected, overhead gage 1311 is oppositely arranged with expansion pipe 132, and limits conversion head outlet 134 between the two.Its In, it expands and limits conversion head outlet 134 between the inner wall of pipe 132 and the outer wall of overhead gage 1311, and overhead gage 1311 and expansion Opening the distance between pipe 132 can be adjusted.Not only the shape of overhead gage 1311 can be oriented to coal slurry stream as a result, make The axial flowing of coal slurry stream is transformed into Radial Flow, and reduces the axial velocity of coal slurry stream, improves the radial velocity of coal slurry stream, and And by adjusting overhead gage 1311 and the connection bolt between pipe 132 can be expanded, to adjust the size of conversion head outlet 134, To increase or decrease the velocity of discharge of coal slurry stream, and then classifying cyclone 110 is made to meet requirement.

Further, the upper surface of overhead gage 1311 and the lower end surface of lower baffle plate 1312 are formed as the appearance of stop part 131 Face, upper surface and lower end surface are fusiform curved surface.Wherein, the upper surface of overhead gage 1311 is streamlined, it is possible to reduce coal Mud exports the accumulation in 134 regions in conversion head, and is further oriented to the flow direction of coal slurry stream, lower baffle plate 1312 Lower end surface is streamlined, can reduce interference of the classifying cyclone 110 to subsequent processing device.

As shown in Fig. 2, overhead gage 1311 and lower baffle plate 1312 limit closed chamber jointly, the lower end of overhead gage 1311 is set There is upper swivel nut 13112, the upper end of lower baffle plate 1312 is equipped with lower swivel nut 13121, and upper swivel nut 13112 is spirally connected with lower swivel nut 13121 matches It closes and is both located in closed chamber.In this way, the structural strength and structural stability that can not only make stop part 131 are more Height, and can prevent the ascending current in subsequent processing device from entering stop part 131 and expand the chamber that pipe 132 is limited Interior keeps the job stability of stop part 131 higher.

It as shown in Figure 4 and Figure 5, include: classification according to the slime separation device 100 of the utility model second aspect embodiment Cyclone 110 and liquid-solid fluid bed 120, classifying cyclone 110 have the classifying cyclone underflow opening 113 positioned at bottom, liquid Solid fluid bed 120 lower part has water inlet, and liquid-solid fluid bed 120 bottom has liquid-solid fluid bed underflow opening 121, and liquid flows admittedly The top for changing bed 120 has liquid-solid fluid bed overflow port 122, and classifying cyclone 110 is inserted into liquid through liquid-solid fluid bed overflow port 122 Solid fluid bed 120 and classifying cyclone underflow opening 112 be located at liquid-solid fluid bed 120 in.

The assorting room of slime separation device 100 is as follows, and classifying cyclone 110 carries out the classification in granularity, grain to coal slime It spends lesser coal slime and flows out classifying cyclone 110, partial size via the classifying cyclone overflow port 113 of 110 top of classifying cyclone Biggish coal slime is flowed into liquid-solid fluid bed 120 by classifying cyclone underflow opening 112, and is carried out in liquid-solid fluid bed 120 Classification in density, the lower coal slime of density are overflowed via liquid-solid fluid bed overflow port 122, and the higher coal slime of density is deposited on liquid Solid fluid bed 120 bottom, and when liquid-solid fluid bed 120 base pressure is larger, under the action of executing agency 140, make to deposit Coal slime in liquid-solid fluid bed 120 bottom is flowed out via liquid-solid fluid bed underflow opening 121.

In turn, existing slime separation device 100 is in the assorting room of above-mentioned coal slime, firstly, classifying cyclone 110 Device is easy to appear air column in classification process, secondly, the coal slime for being classified completion in classifying cyclone 110 needs to pass through pipeline It transports in liquid-solid fluid bed 120 and transport pipeline is longer, not only air column reduces the classification efficiency of classifying cyclone 110, And longer transport pipeline, increase material consumption, energy consumption and the space hold in slime separation work.But this is practical new The classifying cyclone underflow opening 112 of slime separation device 100 in type embodiment passes through liquid-solid fluid bed overflow port 122 and is inserted into In liquid-solid fluid bed 120.

As a result, according to the slime separation device 100 of the utility model embodiment, classifying cyclone 110 is mounted on liquid and flows admittedly Change the top of bed 120, and be connected by liquid-solid fluid bed overflow port 122 with liquid-solid fluid bed 120, not only classifying cyclone bottom Head piece 112 is located in liquid-solid fluid bed 120, classifying cyclone 110 can be made to form fluid-tight condition, to avoid the production of air column It is raw, to improve the classification efficiency of classifying cyclone 110, and flowed in classifying cyclone 110 through classifying cyclone underflow opening 112 Coal slime out can enter directly into liquid-solid fluid bed 120, the transport pipeline for coal slime that no setting is required, thereby reduce coal slime point The space hold of screening device 100 saves production power consumption and material consumption, and then reduces point of coal slime in power consumption and two aspect of material consumption Hank this.

It is made of it should be noted that executing agency 140 refers to pressure sensor 141 and compression bar 142, flows admittedly in liquid When pressure is more than setting value in change bed 120, make the mechanism of the liquid-solid fluid bed unlatching of underflow opening 121.

As shown in Figure 1, being equipped with stop part 131, stop part 131 and classifying cyclone below classifying cyclone underflow opening 112 The side wall of the expansion pipe 132 of the lower section of underflow opening 112 limits conversion head outlet 134 jointly, conversion head export 134 generally perpendicular to The axial direction of classifying cyclone 110.The coal slurry stream that classifying cyclone underflow opening 112 flows out as a result, can export 134 by conversion head It is flowed into liquid-solid fluid bed 120, and during coal slime flows into liquid-solid fluid bed 120, stop part 131 can be passed through And expansion pipe 132 buffers coal slurry stream, to reduce the flow velocity of coal slurry stream, so that coal slurry stream be made more smoothly to be flowed into In liquid-solid fluid bed 120, to reduce impact of the coal slurry stream to liquid-solid fluid bed 120, and then the impact for reducing coal slurry stream is solid to liquid The influence of the separating effect of fluidized bed 120, so that liquid-solid fluid bed 120 separating effect is more preferable.

In some embodiments, stop part 131 is connect with classifying cyclone 110 and liquid-solid fluid bed any of 120. In other words, stop part 131 can connect with classifying cyclone 110 and be installed on liquid-solid fluid bed 120 or stop part 131 It is connect with liquid-solid fluid bed 120, and classifying cyclone 110 is plugged on stop part 131.That is, in some embodiments In, stop part 131 can be with the integrated processing of classifying cyclone 110, and stop part 130 can flow admittedly with liquid in further embodiments Change the integrated processing of bed 120.

In specific embodiment shown in Fig. 4, one end of the direction expansion pipe 132 of stop part 131 has insertion classification Grafting protrusion 13111 in cyclone underflow opening 112, and one end away from expansion pipe 13111 of stop part 132 is from inside to outside The taper gradually tapered up.Specifically, grafting protrusion 13111 is at least partially extend into classifying cyclone underflow opening 112.In this way, The eradicating efficacy that the air column in classifying cyclone 110 can be further improved prevents from flowing into liquid-solid fluid bed 120 coal slime Due to the hypotony in 112 region of classifying cyclone underflow opening, the phenomenon flowed back into classifying cyclone 110 occurs, and is stream The coal slime of classifying cyclone underflow opening 112 provides motion guide out, increases the radial flow speed of coal slime, reduces the axial stream of coal slime Speed so that coal slime is rapidly and uniformly spread in liquid-solid fluid bed 120, and then improves the efficiency of separation.

Further, the cross section of conversion head outlet 134 is in first increases and then decreases trend from up to down.Can make in this way by The radial velocity for the coal slime that classifying cyclone underflow opening 112 flows out reduces, and radial velocity increases, to be effectively reduced coal slime to liquid Solid fluid bed 120 impact, and be uniformly distributed coal slime can rapidly in liquid-solid fluid bed 120, to further mention The separating effect of height liquid-solid fluid bed 120.

As shown in figure 3, stop part 131 includes overhead gage 1311 and lower baffle plate 1312, the upper surface of overhead gage 1311 is under The lower end surface of baffle 1312 is formed as the outer surface of stop part 131, and upper surface and lower end surface are fusiform curved surface.

Wherein, there is ascending current, to carry out point in density to coal slime by ascending current in liquid-solid fluid bed 120 Choosing, and make the lower coal slime of density under the action of ascending current, it is overflowed via liquid-solid fluid bed overflow port 122, and then make Stop part 131 can be effectively reduced to ascending water at streamlined in the upper surface of baffle 131 and the lower end surface of lower baffle plate 132 Disturbance of the resistance and stop part 131 of stream to ascending current, to improve liquid-solid fluid bed 120 separating effect.

As shown in figure 3, having the screw thread worked in coordination on overhead gage 1311 and lower baffle plate 1312, the two is connected through a screw thread To collectively constitute stop part 131.

Further, classifying cyclone 110 with liquid-solid fluid bed 120 connect or be placed in it is liquid-solid fluid bed 120 top Maintenance channel connection.Classifying cyclone 110 is directly connect with liquid-solid fluid bed 120 as a result, makes slime separation device 100 Assemble simpler, conveniently, and classifying cyclone 110 connect with the maintenance channel for being located at liquid-solid fluid bed 120 top and makes to be classified The replacement of cyclone 110 and maintenance are simpler, conveniently.

As shown in fig. 6, including: coal slime storage device according to the slime separation system of the utility model third aspect embodiment 200, the slime separation device 100 such as in above-described embodiment, coarse medium slime a screening plant 300, coarse coal slurry b screening plant 400 And cleaned coal flotation unit 500.

Wherein, coal slime storage device 200 is revolved for storing coal slime raw material, the discharge port of coal slime storage device 200 and classification It flows device feed inlet 114 to connect, classifying cyclone 110 has classifying cyclone overflow port 113, liquid-solid fluid bed 120 bottom tool There is liquid-solid fluid bed underflow opening 121.

Coarse medium slime a screening plant 300 includes high frequency shale shaker 310, concentrator 32 and the first filter press 330, high frequency Vibrating screen 310 is suitable for sifting out coarse medium slime a and supplying liquid after sieve to concentrator 32, the solid outlet 115 of concentrator 32 It is connect with the first filter press 330, and the liquid outlet 115 of concentrator 32 is connect with the liquid outlet 115 of the first filter press 330, The solid outlet 115 of first filter press 330 is suitable for discharge tail coal mud c.

Coarse coal slurry b screening plant 400 includes concentrate cyclone 410 and connect with the underflow opening of concentrate cyclone 410 Linear vibrating screen 420, the underflow opening of concentrate cyclone 410 connect with linear vibrating screen 420, and linear vibrating screen 420 is suitable for sieve Coarse coal slurry b out.

Cleaned coal flotation unit 500 includes kaskad apparatus for pre-flotation pulp conditioning 510, flotation column 520 and the second filter press 530, straight-line oscillation The overflow port of liquid and concentrate cyclone 410, the overflow port convergence of classifying cyclone 110 and and kaskad apparatus for pre-flotation pulp conditioning after 420 sieve of sieve 510 feed inlet connection, the outlet 115 of kaskad apparatus for pre-flotation pulp conditioning 510 connect with flotation column 520, the bottom outlet 115 of flotation column 520 and The feed inlet of concentrator 32 connects, and the overflow port of flotation column 520 is connected to the feed inlet of the second filter press 530, the second filter press 530 solid outlet 115 is suitable for discharge floatation clean coal d, the liquid outlet 115 of filter press be suitable for kaskad apparatus for pre-flotation pulp conditioning 510 into Material mouth connection.

Coal slime is supplied in slime separation device 100 by coal slime storage device 200 as a result, and slime separation device 100 is by coal After mud sorting classifying, it is fed separately to coarse medium slime a screening plant 300, coarse coal slurry b screening plant 400 and cleaned coal flotation Device 500 is to respectively obtain coarse medium slime a, coarse coal slurry b, tail coal mud c and floatation clean coal d.

As shown in fig. 6, the utility model further provides a kind of method for separating packet using above-mentioned slime separation system It includes:

Classification and sorting: coal slime raw material is sub-elected into small grain size coal slime and big granularity coal slime, big grain by cyclonic separation process Degree coal slime fluidizes process sorting admittedly through liquid to obtain big density coal slime and small density coal slime；

Coarse medium slime a sorting: big density coal slime is selected through high frequency shale shaker 310, coarse medium slime a, screenings are obtained on sieve It is dehydrated, filters pressing, finally obtains tail coal mud c and recirculated water e；

Coarse coal slurry b sorting: small density coal slime being concentrated, is screened to the solid obtained after concentration, on sieve To coarse coal slurry b, the liquid of the generation in screenings and enrichment process is conveyed to flotation；

Cleaned coal flotation: by small grain size coal slime obtained in classification and sorting, coarse coal slurry b sorting obtained in screenings with it is dense The liquid of generation in contracting process is mixed together, flotation, filters pressing, to obtain floatation clean coal d, the liquid that filters pressing generates after filters pressing It is back to mixed processes.

It is described in detail referring to slime separation system and method for separating of the Fig. 6 to the utility model.

As shown in fig. 6, slime separation system includes coal slime storage device 200, slime separation device 100, coarse medium slime a Screening plant 300, coarse coal slurry b screening plant 400 and cleaned coal flotation unit 500.Wherein, slime separation device 100 is by dividing Grade cyclone 110, liquid-solid fluid bed 120 and stop part 130 form；Coarse medium slime a screening plant 300 is by high frequency shale shaker 310, concentrator 32 and the first filter press 330 composition；Coarse coal slurry b screening plant 400 is shaken by concentrate cyclone 410 and straight line Dynamic 420 composition of sieve；Cleaned coal flotation unit 500 is made of kaskad apparatus for pre-flotation pulp conditioning 510, flotation column 520 and the second filter press 530.

As shown in fig. 6, method for separating is to inject ascending current in liquid-solid fluid bed 120, until shape in liquid-solid fluid bed 120 After uncertain ascending current.Make 200 memory of coal slime storage device be placed with unprocessed coal slime to flow under the action of Pulp pump 600 Enter into classifying cyclone 110, big granularity coal slime and small grain size coal slime, small grain size are classified into classifying cyclone 110 Coal slime flows through classifying cyclone overflow port 113 and is imported into cleaned coal flotation unit Room 500.

Big granularity coal slime is flowed into liquid-solid fluid bed 120 by classifying cyclone underflow opening 112, liquid-solid fluid bed Big density coal slime and small density coal slime are sorted into 120, small density coal slime is solid via liquid under the action of ascending current Fluidized bed overflow port 122 flows out liquid-solid fluid bed 120 and is imported into coarse coal slurry b screening plant 400, and big density coal slime is solid in liquid It is deposited in fluidized bed 120, and when pressure exceeds setting value, makes liquid-solid fluid bed underflow opening under the action of executing agency 140 121 open, and then big density coal slime is flowed into coarse medium slime a screening plant 300.

Further, screening of the big density coal slime in coarse medium slime a screening plant 300 in high frequency shale shaker 310 Under be divided into coarse medium slime a and screenings two parts, after screenings is dehydrated into concentrator 32, enter the first filter press 330 into One step is dehydrated and is formed as tail coal mud c, and the moisture of abjection is continued to participate in the form of recirculated water e in sorting process.

After small density coal slime in coarse coal slurry b screening plant 400 is concentrated the dehydration of cyclone 410, shake in straight line It is further sorted on dynamic sieve 420, to be divided into coarse coal slurry b and screenings two parts, screenings is imported into cleaned coal flotation dress Set 500.

To which the screenings in small grain size coal slime and coarse coal slurry b screening plant 400 enters kaskad apparatus for pre-flotation pulp conditioning together In 510, the concentration of small grain size coal slime and screenings is adjusted in kaskad apparatus for pre-flotation pulp conditioning 510, and be allowed to after concentration is suitable into Enter into flotation column 520, flotation column 520 carries out flotation to it, and it is divided into two parts, and a portion enters the second pressure Be formed as floatation clean coal d after 530 flotation of filter, another part, which enters in concentrator 32, is formed as tail coal mud c after dehydration.

In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " suitable The orientation or positional relationship of the instructions such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is orientation based on the figure Or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than the structure of indication or suggestion meaning or Unit must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limit to the utility model System.In addition, defining " first ", the feature of " second " can explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ", The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot Structure, material or feature are contained at least one embodiment or example of the utility model.In the present specification, to above-mentioned art The schematic representation of language may not refer to the same embodiment or example.Moreover, description specific features, structure, material or Person's feature can be combined in any suitable manner in any one or more of the embodiments or examples.

While there has been shown and described that the embodiments of the present invention, it will be understood by those skilled in the art that: These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principles of the present invention and objective And modification, the scope of the utility model are defined by the claims and their equivalents.

Claims (15)

1. a kind of classifying cyclone characterized by comprising

Cyclone body, the cyclone body have classifying cyclone feed inlet, classifying cyclone overflow port and classification eddy flow Device underflow opening；And

There is conversion head import and conversion head to export for conversion head, the conversion head, the conversion head import and the classification eddy flow The connection of device underflow opening, the conversion head outlet have angle with the conversion head import.

2. classifying cyclone according to claim 1, which is characterized in that the conversion head exit normal is in the conversion head Import setting.

3. classifying cyclone according to claim 1 or 2, which is characterized in that the conversion head includes expansion pipe and backstop Part, the expansion pipe have tubaeform expansion end, and the stop part is connect with the expansion end, the stop part and the expansion The conversion head outlet is limited between Zhang Duan.

4. classifying cyclone according to claim 3, which is characterized in that the stop part expands the one of pipe towards described Holding has the grafting protrusion being inserted into the expansion pipe.

5. classifying cyclone according to claim 4, which is characterized in that the grafting protrusion is extending at least partially into described point In grade cyclone underflow opening.

6. classifying cyclone according to claim 3, which is characterized in that the stop part expands the one of pipe away from described End is the taper gradually tapered up from inside to outside.

7. classifying cyclone according to claim 3, which is characterized in that the stop part includes overhead gage and lower baffle plate, The lower baffle plate is detachably connected with the overhead gage, and the overhead gage is oppositely arranged and connect with the expansion pipe, and two The conversion head outlet is limited between person.

8. classifying cyclone according to claim 3, which is characterized in that the cross section of the conversion head outlet is from up to down In first increases and then decreases trend.

9. classifying cyclone according to claim 7, which is characterized in that the upper surface of the overhead gage and the lower baffle plate Lower end surface be formed as the outer surface of the stop part, the upper surface and the lower end surface are fusiform curved surface.

10. classifying cyclone according to claim 7, which is characterized in that the overhead gage and the lower baffle plate limit jointly Closed chamber is made, the lower end of the overhead gage is equipped with upper swivel nut, and the upper end of the lower baffle plate is equipped with lower swivel nut, the upper swivel nut With the lower swivel nut threaded and both it is located in the closed chamber.

11. a kind of slime separation device characterized by comprising

Classifying cyclone, the classifying cyclone have the classifying cyclone underflow opening positioned at bottom；

Liquid-solid fluid bed, the liquid-solid fluid bed lower part has water inlet, and there is liquid to flow admittedly for the liquid-solid fluid bed bottom Change bed underflow opening, the liquid-solid fluid bed top has liquid-solid fluid bed overflow port, and the classifying cyclone is solid through the liquid Fluidized bed overflow port is inserted into the described liquid-solid fluid bed and described classifying cyclone underflow opening positioned at described liquid-solid fluid bed interior.

12. slime separation device according to claim 11, which is characterized in that set below the classifying cyclone underflow opening There is a stop part, the side wall of the stop part and the classifying cyclone underflow opening limits conversion head outlet, the conversion jointly Axial direction of the head outlet generally perpendicular to the classifying cyclone.

13. slime separation device according to claim 12, which is characterized in that the stop part and the classifying cyclone With any of the liquid-solid fluid bed connection.

14. slime separation device according to claim 12, which is characterized in that the classifying cyclone flows admittedly with the liquid Change bed connection or is connect with the maintenance channel for being placed in the liquid-solid fluid bed top.

15. a kind of slime separation system characterized by comprising

Coal slime storage device, the coal slime storage device is for storing coal slime raw material；

Slime separation device as described in any one of claim 11-14, the discharge port of the coal slime storage device with it is described The connection of classifying cyclone feed inlet, the classifying cyclone have classifying cyclone overflow port, the liquid-solid fluid bed bottom With liquid-solid fluid bed underflow opening；

Coarse medium slime screening plant, the coarse medium slime screening plant include high frequency shale shaker, concentrator and the first filter press, The high frequency shale shaker is suitable for sifting out coarse medium slime and supplies liquid after sieve to concentrator, the solid outlet of concentrator and the The connection of one filter press, and the liquid outlet of concentrator is connect with the liquid outlet of the first filter press, the solid of the first filter press goes out Mouth is suitable for discharge tail coal mud；

Coarse coal slurry screening plant, the coarse coal slurry screening plant include concentrate cyclone and the underflow with concentrate cyclone The linear vibrating screen of mouth connection, the underflow opening of concentrate cyclone are connect with linear vibrating screen, and linear vibrating screen is suitable for sifting out coarse-fine Coal slime；

Cleaned coal flotation unit, the cleaned coal flotation unit include kaskad apparatus for pre-flotation pulp conditioning, flotation column and the second filter press, the straight line The overflow port of liquid and concentrate cyclone, the overflow port convergence of classifying cyclone and the charging with kaskad apparatus for pre-flotation pulp conditioning after Vibration Screen Mouth connection, the outlet of the kaskad apparatus for pre-flotation pulp conditioning are connect with flotation column, the charging of the bottom outlet of the flotation column and the concentrator Mouth connection, the overflow port of the flotation column are connected to the feed inlet of second filter press, and the solid of second filter press goes out Mouth is suitable for discharge floatation clean coal, and the liquid outlet of the filter press is suitable for being connected to the feed inlet of kaskad apparatus for pre-flotation pulp conditioning.