CN103071336B - Medium pre-drainage device of heavy-medium cyclone coal-separation system and medium drainage method thereof - Google Patents
Medium pre-drainage device of heavy-medium cyclone coal-separation system and medium drainage method thereof Download PDFInfo
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- CN103071336B CN103071336B CN201210553914.1A CN201210553914A CN103071336B CN 103071336 B CN103071336 B CN 103071336B CN 201210553914 A CN201210553914 A CN 201210553914A CN 103071336 B CN103071336 B CN 103071336B
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Abstract
The invention discloses a medium pre-drainage device of a heavy-medium cyclone coal-separation system and a medium drainage method therefor. The medium pre-drainage device is characterized in that a tank body of the medium pre-drainage device is provided with a coal medium inlet, a heavy-medium suspension inlet and a feeding pipe; a middle distributing plate and a medium drainage sieve plate are arranged in the tank body; through the middle distributing plate and the medium drainage sieve plate, the tank body is divided into a first chamber, a second chamber and a third chamber; the middle distributing plate is provided with overflow holes; and sieve pores of the medium drainage sieve plate form an inverted inclined angle of 5 to 30 degrees with a vertical plane. The medium drainage method comprises the following steps of feeding a clean coal and heavy-medium suspension mixture into the medium pre-drainage device for medium drainage and separation, carrying out dispersion and buffering of the clean coal and heavy-medium suspension mixture in the first chamber of the medium pre-drainage device, carrying out uniformly separation in the second chamber, directly feeding the separated heavy-medium suspension into a heavy-medium suspension barrel, and feeding the clean coal and heavy-medium suspension mixture into a sieve bend along a whole sieve width direction. The medium pre-drainage device solves the problem that the traditional medium pre-drainage device and equipment have large sizes and comprise a mass of units, and greatly improves work efficiency of a heavy-medium cyclone coal-separation system.
Description
Technical field
The present invention relates to a kind of de-mediated technique in advance and device that is applied to Coal Cleaning by Dense Medium Cyclone system, specifically a kind of pre-medium-separation device and method of deviating from advance the Coal Cleaning by Dense Medium Cyclone system of part heavy-media suspension for the head coal product after heavy medium cyclone sorting.
Background technology
Coal Cleaning by Dense Medium Cyclone technology a series of remarkable advantages such as sharpness of separation and clean coal recovery are high because having, unit disposal ability is large, obtain Rapid Popularization application in coal preparation plant in recent years.
Due to the requirement of heavy medium cyclone operation principle and architectural feature, the 3-4 that must reach the coal volume being sorted as the volume of the heavy-media suspension of separating medium doubly more than, most of heavy-media suspension wherein will recycle and just can maintain normal sorting.And 60% left and right entering in the heavy-media suspension of heavy medium cyclone will be discharged from cleaned coal outlet with head coal product, therefore, the heavy-media suspension amount in cleaned coal is very large.Traditional handicraft is from the cleaned coal of heavy cyclone cleaned coal outlet discharge and heavy-media suspension mixture directly enters sieve bend after Material collecting box for harvesting buffering and linear vibrating screen carries out de-mediated, dehydration, cause sieve bend and straight line shaker type selecting large, equipment number of units is many, has increased construction investment and operating cost.
Summary of the invention
The object of the invention is for the many deficiencies that exist in prior art, one is to provide a kind of pre-medium-separation device of simple in structure, science Coal Cleaning by Dense Medium Cyclone system, and two are to provide the method that the pre-medium-separation device of a kind of use carries out de-mediated dehydration.
Realize above-mentioned purpose by the following technical solutions: a kind of medium-separation device in advance for Coal Cleaning by Dense Medium Cyclone system, comprise casing, this casing is provided with coal Jie discharging opening, heavy-media suspension discharging opening and feeding pipe, it is characterized in that, in described casing, be provided with distributed amongst plate and de-mediated sieve plate, will in casing, be divided into three chambers by distributed amongst plate and de-mediated sieve plate, be followed successively by backward the first Room, the second Room and the 3rd Room from feeding end section; Described distributed amongst plate is provided with spout hole; The sieve aperture of de-mediated sieve plate becomes 5 °～30 ° inverted dips with vertical plane.
Described distributed amongst plate is longitudinally arranged in casing, and the bottom of one end and casing is fixed, and the top of the other end and casing is fixed.
Described spout hole is strip structure.
The sieve diameter of described de-mediated sieve plate is 0.5mm～1.0mm.
Described coal Jie discharging opening is arranged on the bottom of the second Room, and heavy-media suspension discharging opening is arranged on the bottom of the 3rd Room.
Described feeding pipe is positioned at wall box middle part.
A kind of use method that medium-separation device carries out de-mediated in advance, the device using in described technical process comprises heavy medium cyclone, sieve bend and heavy-media suspension bucket, also comprise medium-separation device in advance, the entrance of medium-separation device and the outlet of heavy medium cyclone is in advance communicated with, medium-separation device outlet is in advance communicated with sieve bend, another outlet is communicated with heavy-media suspension bucket, and sieve bend is communicated with heavy-media suspension bucket;
The method that uses said apparatus to carry out de-mediated comprises:
Disperse, cushion: first the cleaned coal that the outlet of heavy medium cyclone cleaned coal is discharged and heavy-media suspension mixture enter pre-medium-separation device and carry out de-mediated sub-material, coal Jie mixture is in medium-separation device the first Room dispersion in advance, buffering;
Sub-material: the coal Jie mixture through buffering enters the second Room uniform distributing by the multiple strip spout holes on the central dividing plate of pre-medium-separation device, the heavy-media suspension of deviating from directly enters heavy-media suspension bucket, and coal Jie mixture is along the wide sieve bend that feeds of whole sieve;
Discharge: heavy-media suspension contacts with de-mediated sieve plate under effect of inertia, part heavy-media suspension enters the 3rd Room through de-mediated sieve plate and discharges from heavy-media suspension discharging opening, and remainder is discharged and entered sieve bend from coal Jie mixture discharging opening of the second bottom, Room.
Adopt technique scheme, compared with prior art, the pre-medium-separation device of the present invention has buffering, shunting heavy-media suspension and uniform distributing function, and casing is divided into three chambers by distributed amongst plate and de-mediated sieve plate, is followed successively by backward the first Room, the second Room and the 3rd Room from feeding end section; First the cleaned coal that coal slurry is discharged from heavy medium cyclone cleaned coal outlet and heavy-media suspension mixture enter the device buffering with de-mediated function, deviate from a part of heavy-media suspension, and then enter sieve bend and straight line shaker de-mediated, dehydration.Device design science, simple in structure, use this device to carry out de-mediated, coal Jie mixture enters after casing, rely on the effect of coal Jie's mixture self gravitation and flow velocity to front lower motion, in motion, coal Jie mixture disperses in a Room, play cushioning effect, reduce coal Jie mixture speed and the energy when discharging in heavy medium cyclone, coal Jie mixture through buffering enters two Room by the multiple strip spout holes on central dividing plate, play the effect of uniform distributing, make coal Jie mixture along the wide sieve bend that feeds of whole sieve, improve the de-mediated efficiency of sieve bend.Coal Jie mixture enters behind two Room, under effect of inertia, contact with de-mediated sieve plate, part heavy-media suspension enters the 3rd Room through sieve plate and discharges from heavy-media suspension discharging opening, and remainder is discharged and entered sieve bend from coal Jie mixture discharging opening of the second bottom, Room; Because coal Jie mixture has been shunted part heavy-media suspension after pre-medium-separation device, reduce through the heavy-media suspension of follow-up de-mediated equipment, follow-up de-mediated unit type be can reduce, thereby construction investment and operating cost reduced.It is the cleaned coal of discharging from the outlet of heavy cyclone cleaned coal and heavy-media suspension mixture directly enters sieve bend after Material collecting box for harvesting buffering and linear vibrating screen carries out de-mediated, dehydration that the present invention has not only overcome traditional handicraft, cause sieve bend and straight line shaker type selecting large, the defect that equipment number of units is many, has greatly improved the operating efficiency of Coal Cleaning by Dense Medium Cyclone system.
Accompanying drawing explanation
Fig. 1 is the structural representation of pre-medium-separation device of the present invention.
Fig. 2 is Coal Cleaning by Dense Medium Cyclone system cleaned coal de-mediated process chart of the present invention.
In figure: feeding pipe 1, casing 2, the first Room 3, distributed amongst plate 4, the second Room 5, coal Jie discharging opening 6, de-mediated sieve plate 7, the three Room 8, heavy-media suspension discharging opening 9, heavy medium cyclone 10, pre-medium-separation device 11, sieve bend 12, heavy-media suspension bucket 13.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
Embodiment 1: the pre-medium-separation device of a kind of Coal Cleaning by Dense Medium Cyclone system.
The structure of the pre-medium-separation device of Coal Cleaning by Dense Medium Cyclone system is shown in Fig. 1, its entirety is a body structure, casing 2 is provided with coal Jie discharging opening 6, heavy-media suspension discharging opening 9 and feeding pipe 1, in casing 2, be provided with distributed amongst plate 4 and de-mediated sieve plate 7, in casing 2, will in casing 2, be divided into three chambers by distributed amongst plate 4 and de-mediated sieve plate 7, be followed successively by backward the first Room 3, the second Room 5 and the 3rd Room 8 from feeding end.Coal Jie discharging opening 6 is arranged on the bottom of the second Room 5, and heavy-media suspension discharging opening 9 is arranged on the bottom of the 3rd Room 8.Distributed amongst plate 4 is longitudinally arranged in casing 2, the bottom weldering knot of one end and casing 2, the top weldering knot of the other end and casing 2.Distributed amongst plate 4 is provided with the spout hole of multiple strip structures.De-mediated sieve plate 7 is provided with the sieve aperture that multiple diameters are 0.5mm～1.0mm, and the sieve aperture of de-mediated sieve plate becomes 5 °～30 ° inverted dips with vertical plane, and the inverted dip of the present embodiment is 20 degree.This set can effectively prevent that coarse granule from stopping up sieve plate.
Embodiment 2: a kind of use method that medium-separation device carries out de-mediated in advance.
Invention thought of the present invention is that medium-separation device is in advance set, and changes the Material collecting box for harvesting of prior art into pre-medium-separation device 11.As Fig. 2, first the heavy-media suspension of discharging from the cleaned coal outlet of heavy medium cyclone 1 and cleaned coal mixture enter the pre-medium-separation device 2 with de-mediated function and cushion, and deviate from a part of heavy-media suspension, then enter sieve bend 12 and straight line shaker de-mediated, dehydration.The heavy-media suspension that the heavy-media suspension that medium-separation device 11 is deviate from advance in advance and sieve bend are deviate from enters heavy-media suspension bucket 13.
The device that de-mediated method is used is by heavy medium cyclone 10, medium-separation device 11, sieve bend 13 etc. form in advance, the entrance of medium-separation device 11 is communicated with the outlet of heavy medium cyclone 10 in advance, medium-separation device 11 outlet is in advance communicated with sieve bend 13, another outlet is communicated with heavy-media suspension bucket 13, and sieve bend 12 is communicated with heavy-media suspension bucket 13;
The method that uses said apparatus to carry out de-mediated comprises dispersion, buffering, sub-material discharge step, and concrete technology method is:
Disperse, buffering: first the cleaned coal that heavy medium cyclone 10 cleaned coal outlets are discharged and heavy-media suspension mixture enter pre-medium-separation device 11 and carry out de-mediated sub-material, and coal Jie mixture disperses, cushions in the first Room 3 of medium-separation device 11 in advance;
Sub-material: the coal Jie mixture through buffering enters the second Room 5 uniform distributings by the multiple strip spout holes on the central dividing plate 4 of pre-medium-separation device 11, the heavy-media suspension of deviating from directly enters heavy-media suspension bucket 13, and coal Jie mixture is along the wide sieve bend 12 that feeds of whole sieve;
Discharge: heavy-media suspension contacts with de-mediated sieve plate 7 under effect of inertia, part heavy-media suspension enters the 3rd Room 8 through de-mediated sieve plate 7 and discharges from heavy-media suspension discharging opening 9, and remainder is discharged and entered sieve bend 12 from coal Jie discharging opening 6 of 5 bottoms, the second Room.
Operation principle of the present invention and process are referring to Fig. 1, Fig. 2: pre-medium-separation device 11 provided by the invention adopts sidewall middle part pan feeding, coal Jie mixture is from feeding pipe 1 enters casing 2, rely on the effect of coal Jie's mixture self gravitation and flow velocity to front lower motion, in motion, coal Jie mixture is in the first interior dispersion in Room 3, play cushioning effect, reduce speed when coal Jie mixture is discharged from heavy medium cyclone 10 is interior, coal Jie mixture through buffering enters behind the second Room 5 by the multiple strip spout holes on distributed amongst plate 4, under effect of inertia, contact with de-mediated sieve plate 7, part heavy-media suspension enters the 3rd Room 8 through de-mediated sieve plate 7 and discharges from heavy-media suspension discharging opening 9, remainder is discharged from coal Jie (mixture) discharging opening 6 of 5 bottoms, the second Room.
Disclosed is above only specific embodiments of the invention, but the present invention is not limited thereto, and the changes that any person skilled in the art can think of, within all should dropping on protection scope of the present invention.
Claims (7)
1. the medium-separation device in advance for Coal Cleaning by Dense Medium Cyclone system, comprise casing, this casing is provided with coal Jie discharging opening, heavy-media suspension discharging opening and feeding pipe, it is characterized in that, in described casing, be provided with distributed amongst plate and de-mediated sieve plate, will in casing, be divided into three chambers by distributed amongst plate and de-mediated sieve plate, be followed successively by backward the first Room, the second Room and the 3rd Room from feeding end section; Described distributed amongst plate is provided with spout hole; The sieve aperture of de-mediated sieve plate becomes 5 °～30 ° inverted dips with vertical plane.
2. the medium-separation device in advance for Coal Cleaning by Dense Medium Cyclone system according to claim 1, is characterized in that, described distributed amongst plate is longitudinally arranged in casing, and the bottom of one end and casing is fixed, and the top of the other end and casing is fixed.
3. the medium-separation device in advance for Coal Cleaning by Dense Medium Cyclone system according to claim 1, is characterized in that, described spout hole is strip structure.
4. the medium-separation device in advance for Coal Cleaning by Dense Medium Cyclone system according to claim 1, is characterized in that, the sieve diameter of de-mediated sieve plate is 0.5mm～1.0mm.
5. the medium-separation device in advance for Coal Cleaning by Dense Medium Cyclone system according to claim 1, is characterized in that, described coal Jie discharging opening is arranged on the bottom of the second Room, and heavy-media suspension discharging opening is arranged on the bottom of the 3rd Room.
6. the medium-separation device in advance for Coal Cleaning by Dense Medium Cyclone system according to claim 1, is characterized in that, described feeding pipe is positioned at wall box middle part.
7. a method of carrying out de-mediated with medium-separation device in advance claimed in claim 1, the device that described method is used comprises heavy medium cyclone, sieve bend and heavy-media suspension bucket, it is characterized in that:
Also comprise medium-separation device in advance, the entrance of medium-separation device and the outlet of heavy medium cyclone is in advance communicated with, and medium-separation device outlet is in advance communicated with sieve bend, and another outlet is communicated with heavy-media suspension bucket, and sieve bend is communicated with heavy-media suspension bucket;
The method that uses said apparatus to carry out de-mediated comprises:
Disperse, cushion: first the cleaned coal that the outlet of heavy medium cyclone cleaned coal is discharged and heavy-media suspension mixture enter pre-medium-separation device and carry out de-mediated sub-material, coal Jie mixture is in medium-separation device the first Room dispersion in advance, buffering;
Sub-material: the coal Jie mixture through buffering enters the second Room uniform distributing by the multiple strip spout holes on the central dividing plate of pre-medium-separation device, the heavy-media suspension of deviating from directly enters heavy-media suspension bucket, and coal Jie mixture is along the wide sieve bend that feeds of whole sieve;
Discharge: heavy-media suspension contacts with de-mediated sieve plate under effect of inertia, part heavy-media suspension enters the 3rd Room through de-mediated sieve plate and discharges from heavy-media suspension discharging opening, and remainder is discharged and entered sieve bend from coal Jie mixture discharging opening of the second bottom, Room.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210553914.1A CN103071336B (en) | 2012-12-19 | 2012-12-19 | Medium pre-drainage device of heavy-medium cyclone coal-separation system and medium drainage method thereof |
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| CN201210553914.1A CN103071336B (en) | 2012-12-19 | 2012-12-19 | Medium pre-drainage device of heavy-medium cyclone coal-separation system and medium drainage method thereof |
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| CN103071336B true CN103071336B (en) | 2014-06-11 |
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| CN106370555A (en) * | 2016-10-10 | 2017-02-01 | 山西汾西矿业（集团）有限责任公司 | Densitometer device for coal dressing system |
| CN117920476B (en) * | 2024-03-21 | 2024-06-18 | 山西汾西矿业（集团）有限责任公司曙光煤矿 | Pre-medium removing device of dense medium cyclone coal preparation system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB804616A (en) * | 1956-11-05 | 1958-11-19 | Klaas Frederik Tromp | Improvements in and relating to apparatus for separating granular materials having different specific gravities by means of a liquid |
| SE386829B (en) * | 1974-11-29 | 1976-08-23 | Nordstjernan Rederi Ab | DEVICE FOR SEPARATION OF A COMPONENT FROM A LIQUID PHASE |
| DE3308810A1 (en) * | 1983-03-12 | 1984-09-13 | Klöckner-Humboldt-Deutz AG, 5000 Köln | Jigger for dressing coal |
| CN200960473Y (en) * | 2006-11-07 | 2007-10-17 | 平顶山天安煤业股份有限公司田庄选煤厂 | Medium distributary device for heavy medium mineral separation |
| CN202289697U (en) * | 2011-10-28 | 2012-07-04 | 济南大学 | Water separation equipment |
| CN102794050A (en) * | 2012-09-02 | 2012-11-28 | 防城港市中能生物能源投资有限公司 | Filtering and settling integrated efficient impurity-removing tank |
| CN203060969U (en) * | 2012-12-19 | 2013-07-17 | 唐山森普工程设计有限公司 | Medium pre-removing device of dense medium cyclone coal separation system |
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Inventor after: Wang Chenglong Inventor after: He Huitong Inventor after: Wang Yunlai Inventor after: Yan Baozhi Inventor after: Liu Yumiao Inventor after: Zhao Shuhui Inventor before: Wang Chenglong Inventor before: He Huitong |
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