CN104056737A - High-accuracy separation hydro-cyclone - Google Patents
High-accuracy separation hydro-cyclone Download PDFInfo
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- CN104056737A CN104056737A CN201410319274.7A CN201410319274A CN104056737A CN 104056737 A CN104056737 A CN 104056737A CN 201410319274 A CN201410319274 A CN 201410319274A CN 104056737 A CN104056737 A CN 104056737A
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- cyclone
- central tube
- guide cylinder
- wearing layer
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Abstract
The invention provides a high-accuracy separation hydro-cyclone which comprises a rotational flow guide cylinder and a rotational flow cone which are communicated up and down. A feeding opening is formed in one side of the rotational flow guide cylinder, an overflowing channel is communicated to the top end of the rotational flow guide cylinder and provided with a central tube downwards extending into the rotational flow guide cylinder, a bottom flowing opening is formed in the bottom end of the rotational flow cone, the central tube comprises a cylindrical shell, the inner cylindrical face and the outer cylindrical face of the shell are provided with an inner-circle abrasion resistant layer and an outer-circle abrasion resistant layer respectively, and the inner-circle abrasion resistant layer and the outer-circle abrasion resistant layer form an integral circular cone ring cutting part at the bottom end of the shell. According to the high-accuracy separation hydro-cyclone, under the condition that the separation mechanism and the basic structure of the hydro-cyclone are not changed, the aims of improving the separation accuracy and prolonging the service life are achieved by changing the structure style of the central tube, the washing quality of a coal preparation plant is accordingly improved, and the service life of the whole hydro-cyclone is prolonged.
Description
Technical field
The present invention relates to washing appliance field, technology mine, be specifically related to heavy medium cyclone for coal separation, concentrated classifying cyclone, metal and nonmetal ore-dressing classifying cyclone for coal separation.
Background technology
Cyclone is a kind of device that utilizes fluid pressure to produce and rotatablely move.Cyclone has that little, the movement-less part of volume own, treating capacity are large, efficiency of separation high, therefore range of application is more extensive.Particularly to difficulty choosing, extremely difficulty coal separation, the more oxidized coal of fine fraction, sorting and the desulfurization of sulphur coal have significant effect and economic benefit.It is widely used in coal separation, ore dressing, environmental protection, oil, grain, the industry such as nonmetal.
The operation principle of cyclone: be forced to do gyration after slip enters cyclone with certain speed, runs into cyclone wall.Because suffered centrifugal force is different, the suffered centrifugal force of solids crude particle in slip is large, can overcome hydraulic resistance moves to wall, and under the acting in conjunction of self gravitation, along wall spiral, move downward, thin and little particle and most of water because of suffered centrifugal force little, and with slip, do not do gyration near wall.Under the promotion of follow-up feed, slip continues downwards and gyration, so coarse granule continues to concentrate to periphery, fine particle rests on central area, grain diameter by mind-set wall increasing, form hierarchal arrangement.Along with slip flows to conical section from the columnar part of cyclone, mobile end face is more and more less, layered material slurry shrinks under compressing outside, and the internal layer slip that contains a large amount of fine particles has to change direction, then moves upward, form inward eddy, from overflow pipe, discharge, become overflow, big particle continues to move downward along wall spiral, form outer eddy flow, finally by underflow opening, discharged.
Cyclone comprises feeding mouth, overfall, central tube and underflow opening, and their form and size are the important parameters of cyclone, directly affects ability to work and the grading effect of cyclone.During traditional cyclone design, central tube is latus rectum shaped steel rounding pipe, central tube is very high to the requirement of wearability, as dense medium cyclone, the dense media of its sorting is that magnetic iron powder adds that selected material contains a certain amount of spoil, wearing and tearing to central tube are larger, be difficult to service life guarantee, conventionally use the time of 3-6 month will change accessory.The cyclone design stage is just determined nominal diameter and the insertion depth of cyclone central tube, central tube bottom is traditional plane form, and sharpness of separation is also determined thereupon, cannot be improved, even if while using at the scene, not good being also difficult to of separating effect adjusted, unless changed whole equipment.
Summary of the invention
The invention provides a kind of high accuracy cyclone separator that can improve cyclone sharpness of separation and extension device service life.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of high accuracy cyclone separator, comprise the eddy flow guide cylinder and the eddy flow cone that are communicated with up and down, described eddy flow guide cylinder one side offers feeding mouth, eddy flow guide cylinder top is communicated with overflow ducts, this overflow ducts has the central tube stretching in eddy flow guide cylinder downwards, described eddy flow cone bottom offers underflow opening, described central tube comprises Cylinder Shell, on the inside and outside face of cylinder of this housing, be respectively arranged with inner ring wearing layer and outer ring wearing layer, described inner ring wearing layer and outer ring wearing layer form all-in-one-piece circular cone ring cutting part in housing bottom.Preferably, the material of described inner ring wearing layer and outer ring wearing layer all adopts aluminium oxide wear-resistant ceramic.
The interior outside of central tube housing is all equipped with wearing layer, can effectively strengthen the anti-wear performance of central tube, improves the service life of central tube.Central tube bottom forms an all-in-one-piece circular cone ring cutting part, change the conventional planar form of central tube bottom into wedge angle form, the cutting form that described cutting part is treated sorting material density field is optimized for line cutting form by face cutting form, cutting accuracy is higher, thereby the sharpness of separation that improves cyclone, makes cyclone reach best separating effect.Described central tube housing upper end and overflow ducts are bolted to connection, when reality is used, if cyclone sharpness of separation cannot reach requirement, can be by central tube dismounting and change, its nominal diameter and length are constant, but the reducing size that inner ring wearing layer forms and the size of cutting part can adjust according to actual condition, improve the sharpness of separation of cyclone, and do not affect former design parameter, widen the scope of application of cyclone.
Further, the thickness of described inner ring wearing layer lower end is greater than the thickness of inner ring wearing layer upper end.Preferably, the Thickness Ratio of described inner ring wearing layer lower end and upper end is 2:1.
The effective range position that just sorting material is treated in cutting due to central tube, is directly connected the enlarged diameter of part on central tube with overflow pipe by high-strength bolt, can not change separating mechanism and the effect of cyclone.The latus rectum pipe of traditional central tube is changed into reducing, the design of this structure causes little density when sorting material is discharged to overfall by central tube, pressure is more and more less, the constant voltage that is no longer traditional design flows, thereby the wearing and tearing to central tube have been reduced, the replacement cycle that reaches central tube is consistent with the complete machine replacement cycle, does not need to change separately central tube, has extended the service life of equipment.
Preferably, described central tube is with the nominal diameter of eddy flow guide cylinder than being 1:3 to 1:2, and the Length Ratio of described central tube and eddy flow guide cylinder is 1:2 to 4:5.Adopt the cyclone of said ratio can arrive good sharpness of separation.
From above technical scheme, the present invention has following beneficial effect:
The present invention is not changing under the condition of cyclone separating mechanism and basic structure, by changing the version of central tube, reached raising sharpness of separation and improved the object in service life, thereby improved the washing quality of coal preparation plant, and the service life of having improved complete machine.
Accompanying drawing explanation
Fig. 1 is the structural representation of high accuracy cyclone separator of the present invention, and show the fragmentary axial cross-section of central tube and eddy flow guide cylinder and eddy flow cone partly cut open figure;
Fig. 2 is A part enlarged drawing in Fig. 1.
In figure: 1, eddy flow guide cylinder, 2, eddy flow cone, 3, feeding mouth, 4, overflow ducts, 5, central tube, 51, housing, 52, inner ring wearing layer, 53, outer ring wearing layer, 54, cutting part, 6, underflow opening.
The specific embodiment
Below in conjunction with accompanying drawing, a kind of preferred embodiment of the present invention is described in detail.
The invention provides a kind of high accuracy cyclone separator, as shown in Figure 1, cyclone comprises eddy flow guide cylinder 1, eddy flow cone 2 and overflow ducts 4, and wherein eddy flow guide cylinder 1 is communicated with up and down with eddy flow cone 2, and adopts bolt to fix.Eddy flow guide cylinder 1 is latus rectum cylinder, eddy flow guide cylinder upper end is communicated with overflow ducts 4, on eddy flow guide cylinder sidewall, offer feeding mouth 3, overflow ducts has the central tube 5 stretching into downwards in eddy flow guide cylinder, this central tube mainly comprises the housing 51 of column type, this housing upper end has flange, can directly be communicated with overflow ducts by bolt.The main body of housing 51 is formed by roll of steel plate circle, inside and outside wall is pasted respectively inner ring wearing layer 52 and the outer ring wearing layer 53 of being made by aluminium oxide wear-resistant ceramic, described inner ring wearing layer and outer ring wearing layer form the cutting part 54 of monoblock type conial ring shape in housing bottom, this cutting part is to fire by aluminium oxide integral body the wear-resistant ceramic forming, and improves sharpness of separation when guaranteeing wearability.
As shown in Figure 2, central tube 5 external diameters are from top to bottom consistent, and internal diameter from bottom to top increases.In the present embodiment, the variable-diameter structure of central tube is to be determined by the thickness of inner ring wearing layer top and bottom, when the thickness of inner ring wearing layer lower end is greater than the thickness of inner ring wearing layer upper end, when little density is discharged to overfall by central tube until sorting material, pressure is more and more less, the constant voltage that is no longer traditional design flows, thereby the wearing and tearing to central tube have been reduced, greatly the service life of extension device.Inner diameter of centerpipe reducing can seamlessly transit, and also can adopt the wearing layer of two sections of different inner diameters to realize, in the present embodiment, convenient for processing and fabricating, and can adopt Thickness Ratio is the upper and lower end stickup of the inner ring wearing layer central tube inwall of 2:1.
Operation principle of the present invention is as follows:
In cyclone inwall, treat in a large number sorting material, under the double action of gravity and centrifugal force, form vortex, the particle that density is large sinks along cone inner surface to greatest extent, from underflow, discharges, and the particle that density is little is discharged from overflow ducts to central motion.In assorting room, treat that sorting material is at a density field of the inner formation of cyclone, treat that sorting material starts to arrange successively from cyclone inwall according to density order from big to small, central tube can be cut apart this density field, the sorting material for the treatment of that density is little can enter central tube inside, by overflow ducts, discharge cyclone body, the sorting material for the treatment of that density is large can, along the inwall of cyclone body, be discharged from underflow opening.Little density can form wearing and tearing to central tube when sorting material enters central tube discharge simultaneously, when sorting material forms vortex in cyclone inside, can, to central tube outer wall formation wearing and tearing, increase inside and outside circle wearing layer and can effectively reduce wearing and tearing.
The above embodiment is only that the preferred embodiment of the present invention is described; not scope of the present invention is limited; design under the prerequisite of spirit not departing from the present invention; various distortion and improvement that those of ordinary skills make technical scheme of the present invention, all should fall in the definite protection domain of claims of the present invention.
Claims (7)
1. a high accuracy cyclone separator, comprise the eddy flow guide cylinder (1) and the eddy flow cone (2) that are communicated with up and down, described eddy flow guide cylinder (1) one side offers feeding mouth (3), eddy flow guide cylinder top is communicated with overflow ducts (4), this overflow ducts has the central tube (5) stretching in eddy flow guide cylinder downwards, described eddy flow cone (2) bottom offers underflow opening (6), it is characterized in that, described central tube (5) comprises Cylinder Shell (51), in this housing, on external cylindrical surface, be respectively arranged with inner ring wearing layer (52) and outer ring wearing layer (53), described inner ring wearing layer and outer ring wearing layer form all-in-one-piece circular cone ring cutting part (54) in housing bottom.
2. cyclone according to claim 1, is characterized in that, the thickness of described inner ring wearing layer (52) lower end is greater than the thickness of inner ring wearing layer upper end.
3. cyclone according to claim 2, is characterized in that, the Thickness Ratio of described inner ring wearing layer (52) lower end and upper end is 2:1.
4. cyclone according to claim 1, is characterized in that, described central tube (5) is 1:3 to 1:2 with the nominal diameter ratio of eddy flow guide cylinder (1).
5. cyclone according to claim 1, is characterized in that, described central tube (5) is 1:2 to 4:5 with the Length Ratio of eddy flow guide cylinder (1).
6. cyclone according to claim 1, is characterized in that, described housing (51) upper end and overflow ducts (4) are bolted to connection.
7. cyclone according to claim 1, is characterized in that, the material of described inner ring wearing layer (52) and outer ring wearing layer (53) all adopts aluminium oxide wear-resistant ceramic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410319274.7A CN104056737A (en) | 2014-07-07 | 2014-07-07 | High-accuracy separation hydro-cyclone |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410319274.7A CN104056737A (en) | 2014-07-07 | 2014-07-07 | High-accuracy separation hydro-cyclone |
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| CN104056737A true CN104056737A (en) | 2014-09-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108284003A (en) * | 2018-01-22 | 2018-07-17 | 太原理工大学 | A kind of device and method reducing cyclone separating density |
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|---|---|---|---|---|
| US2816658A (en) * | 1954-10-11 | 1957-12-17 | Dorr Oliver Inc | Hydrocyclones |
| US3494474A (en) * | 1968-12-26 | 1970-02-10 | Barnes Drill Co | Hydrocyclone separator with vortex starter |
| US4259180A (en) * | 1976-05-14 | 1981-03-31 | Enso-Gutzeit Osakeyhtio | Hydrocyclone |
| CN2656013Y (en) * | 2003-11-11 | 2004-11-17 | 哈尔滨理工大学 | Tangent flow reverse rotating type electric cyclonic dust collector |
| CN2680357Y (en) * | 2004-03-25 | 2005-02-23 | 鞍山北圆机械加工有限公司 | Hydrocyclone |
| US20050103691A1 (en) * | 2003-11-19 | 2005-05-19 | Hakola Gordon R. | Cyclone with in-situ replaceable liner system and method for accomplishing same |
| CN101267891A (en) * | 2005-08-12 | 2008-09-17 | 伟尔矿物澳大利亚私人有限公司 | Improvements in and relating to hydrocyclones |
| CN201558748U (en) * | 2009-12-07 | 2010-08-25 | 威海市海王旋流器有限公司 | Adjustable overflow pipe of whirlcone |
| CN202778747U (en) * | 2012-07-18 | 2013-03-13 | 杜振宝 | Classifying cyclone |
| CN203184126U (en) * | 2013-01-15 | 2013-09-11 | 北京华德创业环保设备有限公司 | Overflow lip of composite material hydrocyclone |
| CN203955377U (en) * | 2014-07-07 | 2014-11-26 | 合肥约翰芬雷矿山装备有限公司 | High accuracy cyclone separator |
-
2014
- 2014-07-07 CN CN201410319274.7A patent/CN104056737A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2816658A (en) * | 1954-10-11 | 1957-12-17 | Dorr Oliver Inc | Hydrocyclones |
| US3494474A (en) * | 1968-12-26 | 1970-02-10 | Barnes Drill Co | Hydrocyclone separator with vortex starter |
| US4259180A (en) * | 1976-05-14 | 1981-03-31 | Enso-Gutzeit Osakeyhtio | Hydrocyclone |
| CN2656013Y (en) * | 2003-11-11 | 2004-11-17 | 哈尔滨理工大学 | Tangent flow reverse rotating type electric cyclonic dust collector |
| US20050103691A1 (en) * | 2003-11-19 | 2005-05-19 | Hakola Gordon R. | Cyclone with in-situ replaceable liner system and method for accomplishing same |
| CN2680357Y (en) * | 2004-03-25 | 2005-02-23 | 鞍山北圆机械加工有限公司 | Hydrocyclone |
| CN101267891A (en) * | 2005-08-12 | 2008-09-17 | 伟尔矿物澳大利亚私人有限公司 | Improvements in and relating to hydrocyclones |
| CN201558748U (en) * | 2009-12-07 | 2010-08-25 | 威海市海王旋流器有限公司 | Adjustable overflow pipe of whirlcone |
| CN202778747U (en) * | 2012-07-18 | 2013-03-13 | 杜振宝 | Classifying cyclone |
| CN203184126U (en) * | 2013-01-15 | 2013-09-11 | 北京华德创业环保设备有限公司 | Overflow lip of composite material hydrocyclone |
| CN203955377U (en) * | 2014-07-07 | 2014-11-26 | 合肥约翰芬雷矿山装备有限公司 | High accuracy cyclone separator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108284003A (en) * | 2018-01-22 | 2018-07-17 | 太原理工大学 | A kind of device and method reducing cyclone separating density |
| CN108284003B (en) * | 2018-01-22 | 2020-02-28 | 太原理工大学 | Device and method for reducing sorting density of cyclone |
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Application publication date: 20140924 |