CN103071336A - Medium pre-drainage device of heavy-medium cyclone coal-separation system and medium drainage method therefor - Google Patents
Medium pre-drainage device of heavy-medium cyclone coal-separation system and medium drainage method therefor Download PDFInfo
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- CN103071336A CN103071336A CN2012105539141A CN201210553914A CN103071336A CN 103071336 A CN103071336 A CN 103071336A CN 2012105539141 A CN2012105539141 A CN 2012105539141A CN 201210553914 A CN201210553914 A CN 201210553914A CN 103071336 A CN103071336 A CN 103071336A
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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 in advance de-mediated technique and device that is applied to the 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 the heavy medium cyclone sorting.
Background technology
The Coal Cleaning by Dense Medium Cyclone technology obtains Rapid Popularization in coal preparation plant in recent years and uses because having a series of remarkable advantages such as sharpness of separation and clean coal recovery are high, the unit disposal ability is large.
Because the requirement of heavy medium cyclone operation principle and architectural feature, the 3-4 that must reach the coal volume that is sorted as the volume of the heavy-media suspension of separating medium doubly more than, most of heavy-media suspension wherein will recycle just can keep normal sorting.Will discharge from the cleaned coal outlet with head coal product and enter about 60% in the heavy-media suspension of heavy medium cyclone, therefore, the heavy-media suspension amount in the cleaned coal is very large.Traditional handicraft is from the cleaned coal of heavy cyclone cleaned coal outlet discharge and the heavy-media suspension mixture directly enters sieve bend after the 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, the equipment number of units is many, has increased construction investment and operating cost.
Summary of the invention
The objective of the invention is for the many deficiencies that exist in the prior art, one provides a kind of pre-medium-separation device of simple in structure, science Coal Cleaning by Dense Medium Cyclone system, and two provide the method that the pre-medium-separation device of a kind of usefulness carries out the de-mediated dehydration.
Realize above-mentioned purpose by the following technical solutions: a kind of in advance medium-separation device for the 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, be provided with distributed amongst plate and de-mediated sieve plate in the described casing, with being divided into three chambers in the casing, backward be followed successively by first Room, second Room and three Room from the feeding end section by distributed amongst plate and de-mediated sieve plate; 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 vertically is arranged in the casing, and the bottom of an end and casing is fixed, and the top of the other end and casing is fixed.
Described spout hole is the 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 the heavy-media suspension discharging opening is arranged on the bottom of the 3rd Room.
Described feeding pipe is positioned at the wall box middle part.
A kind of usefulness is the medium-separation device method of carrying out de-mediated in advance, the device that uses in the described technical process comprises heavy medium cyclone, sieve bend and heavy-media suspension bucket, also comprise in advance medium-separation device, the entrance of medium-separation device is communicated with the outlet of heavy medium cyclone in advance, in advance medium-separation device outlet is communicated with sieve bend, another outlet is communicated with the heavy-media suspension bucket, and sieve bend is communicated with the heavy-media suspension bucket;
The method of using said apparatus to carry out de-mediated comprises:
Disperse, cushion: the cleaned coal that the outlet of heavy medium cyclone cleaned coal is discharged and heavy-media suspension mixture at first enter pre-medium-separation device and carry out the de-mediated sub-material, and coal Jie mixture is in advance medium-separation device the first Room dispersion, buffering;
Sub-material: the coal Jie mixture through buffering enters the second Room uniform distributing by a plurality of strip spout holes on the central dividing plate of pre-medium-separation device, the heavy-media suspension of deviating from directly enters the 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 the de-mediated sieve plate under effect of inertia, part heavy-media suspension passes the de-mediated sieve plate and enters the 3rd Room from the discharge of heavy-media suspension discharging opening, and remainder is discharged from coal Jie mixture discharging opening of bottom, the second Room and entered sieve bend.
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 the feeding end section; Cleaned coal and heavy-media suspension mixture that coal slurry is discharged from heavy medium cyclone cleaned coal outlet at first 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, after coal Jie mixture enters casing, rely on the effect of coal Jie's mixture self gravitation and flow velocity to front lower motion, coal Jie mixture disperses in a Room in the motion, played cushioning effect, speed and energy when having reduced coal Jie mixture and discharging in the heavy medium cyclone, coal Jie mixture through buffering enters two Room by a plurality of strip spout holes on the central dividing plate, play the effect of uniform distributing, made coal Jie mixture along the wide sieve bend that feeds of whole sieve, improved the de-mediated efficient of sieve bend.After coal Jie mixture enters two Room, under effect of inertia, contact with the de-mediated sieve plate, part heavy-media suspension passes sieve plate and enters the 3rd Room from the discharge of heavy-media suspension discharging opening, and remainder is discharged from coal Jie mixture discharging opening of bottom, the second Room and entered sieve bend; Because coal Jie mixture has been shunted the part heavy-media suspension through behind the pre-medium-separation device, the heavy-media suspension minimizing through follow-up de-mediated equipment can reduce follow-up de-mediated unit type, thereby reduces construction investment and operating cost.The present invention has not only overcome traditional handicraft for the cleaned coal of discharging from the outlet of heavy cyclone cleaned coal and the heavy-media suspension mixture directly enters sieve bend after the 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, the defective that the equipment number of units is many has greatly improved the operating efficiency of Coal Cleaning by Dense Medium Cyclone system.
Description of drawings
Fig. 1 is the structural representation of pre-medium-separation device of the present invention.
Fig. 2 is Coal Cleaning by Dense Medium Cyclone of the present invention system cleaned coal de-mediated process chart.
Among the figure: feeding pipe 1, casing Room 32, the first, distributed amongst plate Room 54, the second, coal Jie discharging opening 6, de-mediated sieve plate Room 87, the three, heavy-media suspension discharging opening 9, heavy medium cyclone 10, pre-medium-separation device 11, sieve bend 12, heavy-media suspension bucket 13, Material collecting box for harvesting 14.
The specific embodiment
The present invention will be further described below in conjunction with drawings and Examples.
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 seen Fig. 1, its integral body is a body structure, casing 2 is provided with coal Jie discharging opening 6, heavy-media suspension discharging opening 9 and feeding pipe 1, be provided with distributed amongst plate 4 and de-mediated sieve plate 7 in the casing 2, to be divided into three chambers in the casing 2 by distributed amongst plate 4 and de-mediated sieve plate 7 in the casing 2, 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 vertically is arranged in the casing 2, the bottom weldering knot of an 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 a plurality of strip structures.De-mediated sieve plate 7 is provided with the sieve aperture that a plurality of 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 present embodiment is 20 degree.This set can prevent effectively that coarse granule from stopping up sieve plate.
Embodiment 2: a kind of usefulness is the medium-separation device method of carrying out de-mediated in advance.
Invention thought of the present invention is that in advance medium-separation device is set, and changes the Material collecting box for harvesting of prior art into pre-medium-separation device 11.Such as Fig. 2, heavy-media suspension and the cleaned coal mixture of discharging from the cleaned coal outlet of heavy medium cyclone 1 at first enter pre-medium-separation device 2 bufferings with de-mediated function, deviate from a part of heavy-media suspension, then enter sieve bend 12 and straight line shaker de-mediated, dehydration.The heavy-media suspension deviate from of the heavy-media suspension deviate from advance of medium-separation device 11 and sieve bend enters heavy-media suspension bucket 13 in advance.
The device that the 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, in advance medium-separation device 11 outlet is 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 of using said apparatus to carry out de-mediated comprises dispersion, buffering, sub-material discharge step, and the concrete technology method is:
Disperse, buffering: the cleaned coal that the outlet of heavy medium cyclone 10 cleaned coal is discharged and heavy-media suspension mixture at first enter pre-medium-separation device 11 and carry out the de-mediated sub-material, and coal Jie mixture disperses in the first Room 3 of medium-separation device 11 in advance, buffering;
Sub-material: the coal Jie mixture through buffering enters the second Room 5 uniform distributings by a plurality of 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 passes de-mediated sieve plate 7 and enters the 3rd Room 8 from 9 discharges of heavy-media suspension discharging opening, and remainder is discharged from coal Jie discharging opening 6 of 5 bottoms, the second Room and entered sieve bend 12.
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, after coal Jie mixture enters casing 2 from feeding pipe 1, rely on the effect of coal Jie's mixture self gravitation and flow velocity to front lower motion, coal Jie mixture is in the 3 interior dispersions of the first Room in the motion, played cushioning effect, speed when having reduced coal Jie mixture from heavy medium cyclone 10 interior the discharge, after coal Jie mixture of process buffering enters the second Room 5 by a plurality of strip spout holes on the distributed amongst plate 4, under effect of inertia, contact with de-mediated sieve plate 7, part heavy-media suspension passes de-mediated sieve plate 7 and enters the 3rd Room 8 from 9 discharges of heavy-media suspension discharging opening, and remainder is discharged from coal Jie (mixture) discharging opening 6 of 5 bottoms, the second Room.
More than disclosed be specific embodiments of the invention only, but the present invention is not limited thereto, the changes that any person skilled in the art can think of all should drop within protection scope of the present invention.
Claims (7)
1. in advance medium-separation device that is used for the 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, be provided with distributed amongst plate and de-mediated sieve plate in the described casing, with being divided into three chambers in the casing, backward be followed successively by first Room, second Room and three Room from the feeding end section by distributed amongst plate and de-mediated sieve plate; 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 in advance medium-separation device for the Coal Cleaning by Dense Medium Cyclone system according to claim 1 is characterized in that, described distributed amongst plate vertically is arranged in the casing, and the bottom of an end and casing is fixed, and the top of the other end and casing is fixed.
3. the in advance medium-separation device for the Coal Cleaning by Dense Medium Cyclone system according to claim 1 is characterized in that, described spout hole is the strip structure.
4. the in advance medium-separation device for the 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 in advance medium-separation device for the 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 the heavy-media suspension discharging opening is arranged on the bottom of the 3rd Room.
6. the in advance medium-separation device for the Coal Cleaning by Dense Medium Cyclone system according to claim 1 is characterized in that, described feeding pipe is positioned at the wall box middle part.
7. method of carrying out de-mediated with in advance medium-separation device 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 in advance medium-separation device, the entrance of medium-separation device is communicated with the outlet of heavy medium cyclone in advance, and in advance medium-separation device outlet is communicated with sieve bend, and another outlet is communicated with the heavy-media suspension bucket, and sieve bend is communicated with the heavy-media suspension bucket;
The method of using said apparatus to carry out de-mediated comprises:
Disperse, cushion: the cleaned coal that the outlet of heavy medium cyclone cleaned coal is discharged and heavy-media suspension mixture at first enter pre-medium-separation device and carry out the de-mediated sub-material, and coal Jie mixture is in advance medium-separation device the first Room dispersion, buffering;
Sub-material: the coal Jie mixture through buffering enters the second Room uniform distributing by a plurality of strip spout holes on the central dividing plate of pre-medium-separation device, the heavy-media suspension of deviating from directly enters the 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 the de-mediated sieve plate under effect of inertia, part heavy-media suspension passes the de-mediated sieve plate and enters the 3rd Room from the discharge of heavy-media suspension discharging opening, and remainder is discharged from coal Jie mixture discharging opening of bottom, the second Room and entered sieve bend.
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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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| Application Number | Priority Date | Filing Date | Title |
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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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| CN103071336A true CN103071336A (en) | 2013-05-01 |
| CN103071336B CN103071336B (en) | 2014-06-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| 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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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| DE2553910A1 (en) * | 1974-11-29 | 1976-08-12 | Nordstjernan Rederi Ab | DEVICE FOR SEPARATING A LIQUID PHASE FROM SUBSTANCES THAT FORM A SUSPENSION OR EMULSION WITH IT |
| DE3308810A1 (en) * | 1983-03-12 | 1984-09-13 | Klöckner-Humboldt-Deutz AG, 5000 Köln | Jigger for dressing coal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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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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