CN207042655U - A kind of coal slime classification, deslimer - Google Patents
A kind of coal slime classification, deslimer Download PDFInfo
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- CN207042655U CN207042655U CN201720138142.3U CN201720138142U CN207042655U CN 207042655 U CN207042655 U CN 207042655U CN 201720138142 U CN201720138142 U CN 201720138142U CN 207042655 U CN207042655 U CN 207042655U
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- deslimer
- rectifier
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Abstract
The utility model provides a kind of coal slime classification, deslimer, including feeding pipe, distributor, rectifier, downflow weir, overfall and underflow discharge gate.Feeding pipe and distributor are arranged in conical section, and conical section bottom is connected with underflow discharge mouth；Rectifier and downflow weir are arranged in cylindrical section, and cylindrical section top is connected with overfall；Feeding pipe stretches into deslimer staving center from conical section at a certain angle, is connected above feeding pipe with distributor, rectifier is arranged on cylindrical section middle and lower part, and downflow weir is arranged on cylindrical section top and is connected with overfall.Described coal slime is classified, deslimer, according to the hindered falling speed difference of the material of different grain size size, the ascending current formed using pan feeding ore pulp itself, realize the classification of material of different grain size, suitable for the coarse slime grading technology of coal slime water system of coal preparation plant, the alternative or existing waterpower desliming classifying equipoment of cooperation uses, and can effectively reduce the coal slime partition size of existing coal preparation plant and improve coal slime effectiveness of classification.
Description
Technical field
The invention belongs to colliery black water equipment technical field, and in particular to a kind of coal slime classification, deslimer.
Background technology
With the continuous improvement of mining mechanization degree and the deterioration of geological conditions, in raw coal fine particle stage material content by
Edge up height, and the various main washing appliancies of coal preparation plant inevitably cause the increase of high grey secondary slime again.Existing coal preparation plant
Coal preparation technique used, typically handled using gravity separation method>The block smalls of 1.0mm grades, bed, spiral are disturbed using TBS
The separation of coarse slime equipment such as separator, fine coal properties matter cyclone or TCS separation of coarse slime machines handle the thick of 1~0.25mm grades
Coal slime, and the fine coal slurry of -0.25mm grades typically uses floatation process.Due to the further hair of slime separation technique in recent years
Exhibition, coal preparation plant needs further to be classified 0.5~0mm fine coal slurry, desliming, and partition size is generally 0.1mm or so.
0.5~0.1mm coal slime and -0.1mm thin mud will be respectively processed after classification.
Existing coal preparation plant is classified before typically carrying out the choosing of black water using hydraulic classification equipment or centrifugal force classifying equipoment.
Hydraulic classiciation refers under gravity, classification be realized by sinking speed difference of the material in medium flow field.
At present select station-service to hydraulic classification equipment mainly have spitzkasten, dredging sump, hang plate classifying equipoment, inclined narrow flow classifying equipment
Deng because automaticity is low, underflow discharge manually controls this kind equipment substantially so that partition size is difficult to grasp, therefore point
Class precision is not high, and coal preparation plant seldom applies at present.
Centrifugal force classifying equipoment refers mainly to various types of hydrocyclones, and they are in the presence of centrifugal force field, are incited somebody to action
Particle is separated by radial velocity difference.Hydrocyclone design feature is：The cone of low-angle (generally 10 °~20 °), coal
Muddy water suspension through inlet tube tangentially into cylinder, it is for the helical movement downwards；Solid phase particles under the influence of centrifugal force, have
The trend settled to eddy flow wall；Coarse granule to cyclone wall due to by larger centrifugal action, moving, and with outward turning
Stream is discharged from cyclone bottom, forms underflow；Fine grained is then smaller due to suffered centrifugal force, has little time sedimentation just with inward eddy
Discharged from overflow pipe, form overflow；It is achieved in the separation of size fractionated material.Hydrocyclone is current concentration, classification coal
The capital equipment of muddy water, but during long-term use, due to the factor such as the abrasion of the cyclone mouth of pipe, feed pressure be unstable,
Cause hydroclone classification less efficient, overflow, underflow have a mismatching phenomenon, the less stable of equipment operation, especially
It is worse for the fine grading less than 0.1mm, classification, desliming effect.
According to current coal preparation technique, how to improve the grading effect of coal slime water classified equipment, reduce coal slime water classified and set
Standby mispairing amount, solve the classification problems of 0.1mm thin muds, be a technical barrier urgently to be resolved hurrily.In other words, in moisture of coal fines
Level sorts further important today, and it is extremely urgent to develop a kind of new and effective coal slime classifying equipoment.
The content of the invention
The technical problem to be solved in the present invention is, for existing for domestic common coal slime water classified at present, desliming device
Above-mentioned deficiency, there is provided a kind of coal slime classification, deslimer, this device can improve the effectiveness of classification of existing coal slime water classified equipment,
And solve the classification problems of 0.1mm thin muds.By the present invention, black water can be achieved by certain particle size classification, desliming, realize underflow
High concentration is discharged.
To solve problem above, the present invention adopts the technical scheme that：
A kind of coal slime classification, deslimer, including feeding pipe, distributor, rectifier, downflow weir, overfall and underflow discharge
Mouthful.Feeding pipe and distributor are arranged in conical section, and conical section bottom is connected with underflow discharge mouth；Rectifier and downflow weir are arranged in
Cylindrical section, cylindrical section top are connected with overfall；Feeding pipe stretches into deslimer staving center, pan feeding from conical section at a certain angle
It is connected above pipe with distributor, rectifier is arranged on cylindrical section middle and lower part, and downflow weir is arranged on cylindrical section top and and overfall
Connection.
Preferably, the feeding pipe is arranged horizontally feeding pipe, the feeding pipe being in tilted layout, there is entering for certain radian
Combination more than one or both of expects pipe.
Preferably, the rectifier suppresses the glass epoxy of bending by polylith or plastic plate is overlapped mutually and formed, and is superimposed
The rectifier formed is fixed on cylindrical section middle and lower part.
Preferably, the rectifier be provided with can lifting arm, by regulation can lifting arm height, realize rectifier height
Regulation.
Preferably, the conical section is the conical shell of 60 ° of cone angle, and conical section is suitable for reading to be connected with mouth under cylindrical section.
A kind of coal slime provided by the invention is classified, deslimer, and two functions can be achieved：First, realize the grain of material to be fractionated
Degree classification；Second, realize the high concentration discharge of underflow materials.Because fine grained hindered falling end speed is smaller, in the upper of certain speed
Rise under flow action with being moved on current direction and passing through rectifier, form overflow product；Coarse granule due to hindered falling end speed compared with
Greatly, under the ascending current effect of certain speed, still the climbing power of current can be overcome to move downward, forms underflow product；Pass through
The inspissation of the conical section, realize the high concentration discharge of underflow materials.
The present invention brings following beneficial effect：
1st, the classification of described coal slime, deslimer, due to being provided with rectifier in cylindrical section, can effectively weaken material and enter
Enter after deslimer due to space change and caused by turbulent phenomenon.
2nd, the classification of described coal slime, deslimer, due to the inspissation of conical section, underflow high concentration row can be effectively ensured
Material.
3rd, after above-mentioned technical proposal is employed, the grading effect of black water is guaranteed, and is replaced with deslimer existing
Thickening and classifying cyclone supports the use with it, can effectively reduce the coal slime partition size of existing coal preparation plant and improve coal slime point
Class precision, and then the clean coal recovery of subsequent production link is improved, create more economic benefits.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the top view that material feeding system of the present invention evenly distributes section.
In figure：1- feeding pipes；2- distributors；3- distribution ducts；4- reflecting plates；5- rectifiers；6- support members；7- overflows
Weir；8- overfalls；9- underflow discharge mouths；10- conical sections；11- cylindrical sections.
Embodiment
The present invention will be further described by 1 and Fig. 2 below in conjunction with the accompanying drawings, but they are not to the scope of the present invention
Restriction.
Described coal slime classification, deslimer, according to the hindered falling speed difference of the material of different grain size size, using entering
Expect the ascending current that ore pulp itself is formed, the classification of material of different grain size is realized, suitable for the rough coal of coal slime water system of coal preparation plant
Mud grading technology, the alternative or existing hydraulic classification equipment of cooperation use.
Feeding pipe 1 is classified from the medium position of conical section 10 insertion coal slime, the center inside deslimer, the tail of feeding pipe 1
End top is connected by pipeline with distributor 2；Rectifier 5 is arranged in the middle and lower part of cylindrical section 11, and fine granular materials are with ascending current
It is collected into after through rectifier by downflow weir 7 at overfall 8, turns into overflow product；Coarse granule material passes through conical section 10
It is pooled to after concentration at underflow discharge mouth 9, turns into underflow product.
Black water material is fed inside deslimer by feeding pipe 1 first in whole classification process, is disappeared by distributor 2
Except inertia force is uniformly fed inside deslimer afterwards.Under the ascending current effect that material itself is formed, material moves upwards
The rectifying section formed into rectifier 5, fluid state is converted into laminar flow by turbulent flow, and in this region, fine grained is due to interference
Terminal velocity is smaller, can not overcome the lift of current, and as ascending current moves upwards, overfall 8 is collected into by downflow weir 7
Place turns into overflow product；Coarse granule under the ascending current effect of certain speed, still is able to gram because hindered falling end speed is larger
The climbing power for taking current moves downward, and is pooled to after the concentration of conical section 10 at underflow discharge mouth 9, turns into underflow product.
The announcement and teaching of book according to the above description, those skilled in the art in the invention can also be to above-mentioned technical sides
Case is changed and changed.But the invention is not limited in above-mentioned concrete technical scheme, every those skilled in the art exist
Made any conspicuously improved, replacement or modification belong to protection scope of the present invention on the basis of the present invention.This
Outside, although having used some specific terms in this specification, these terms merely for convenience of description, not to the present invention
Form any restrictions.
Claims (5)
1. a kind of coal slime classification, deslimer, it is characterised in that：Including feeding pipe, distributor, rectifier, downflow weir, overfall and
Underflow discharge gate；Feeding pipe and distributor are arranged in conical section, and conical section bottom is connected with underflow discharge mouth；Rectifier and overflow
Weir is arranged in cylindrical section, and cylindrical section top is connected with overfall；Feeding pipe stretches into deslimer staving from conical section at a certain angle
Center, feeding pipe top are connected with distributor, and rectifier is arranged on cylindrical section middle and lower part, and downflow weir is arranged on cylindrical section top simultaneously
It is connected with overfall.
2. coal slime classification according to claim 1, deslimer, it is characterised in that：What the feeding pipe was arranged horizontally enters
Expects pipe, the feeding pipe being in tilted layout, there is more than one or both of the feeding pipe of certain radian combination.
3. coal slime classification according to claim 1, deslimer, it is characterised in that：The rectifier is suppressed by polylith and bent
Glass epoxy or plastic plate be overlapped mutually composition, the rectifier being formed by stacking is fixed on cylindrical section middle and lower part.
4. coal slime classification according to claim 1, deslimer, it is characterised in that：The rectifier be provided with can lifting arm,
By regulation can lifting arm height, realize the regulation of rectifier height.
5. coal slime classification according to claim 1, deslimer, it is characterised in that：The conical section is the taper of 60 ° of cone angle
Housing, conical section is suitable for reading to be connected with mouth under cylindrical section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720138142.3U CN207042655U (en) | 2017-02-16 | 2017-02-16 | A kind of coal slime classification, deslimer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720138142.3U CN207042655U (en) | 2017-02-16 | 2017-02-16 | A kind of coal slime classification, deslimer |
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| CN207042655U true CN207042655U (en) | 2018-02-27 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108787153A (en) * | 2018-05-21 | 2018-11-13 | 中国矿业大学 | A kind of super-fine classified equipment of single flow coal slime and stage division |
| CN110433953A (en) * | 2019-08-20 | 2019-11-12 | 中国恩菲工程技术有限公司 | Multicomponent particulate fluidization of material separation equipment |
-
2017
- 2017-02-16 CN CN201720138142.3U patent/CN207042655U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108787153A (en) * | 2018-05-21 | 2018-11-13 | 中国矿业大学 | A kind of super-fine classified equipment of single flow coal slime and stage division |
| CN110433953A (en) * | 2019-08-20 | 2019-11-12 | 中国恩菲工程技术有限公司 | Multicomponent particulate fluidization of material separation equipment |
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| CP03 | Change of name, title or address |
Address after: Room 137, floor 1, building 8, ecological construction apartment, south of Binhai Avenue, Zhongxin ecological city, Binhai New Area, Tianjin 300000 Patentee after: Tianjin Meiteng Technology Co., Ltd Address before: 300385, Tianjin District, Xiqing Xiqing Economic Development Zone, a new branch No. 7, A District Patentee before: Tianjin Meiteng Technology Co.,Ltd. |