CN201179477Y - Fluidized bed coal picker of air weight medium - Google Patents

Fluidized bed coal picker of air weight medium Download PDF

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Publication number
CN201179477Y
CN201179477Y CNU2008200321229U CN200820032122U CN201179477Y CN 201179477 Y CN201179477 Y CN 201179477Y CN U2008200321229 U CNU2008200321229 U CN U2008200321229U CN 200820032122 U CN200820032122 U CN 200820032122U CN 201179477 Y CN201179477 Y CN 201179477Y
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CN
China
Prior art keywords
screen surface
fluidized bed
compass screen
plate
hypostasis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CNU2008200321229U
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Chinese (zh)
Inventor
赵跃民
骆振福
梁春成
陶秀祥
陈增强
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China University of Mining and Technology CUMT
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China University of Mining and Technology CUMT
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Priority to CNU2008200321229U priority Critical patent/CN201179477Y/en
Application granted granted Critical
Publication of CN201179477Y publication Critical patent/CN201179477Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to an air dense medium fluidized bed coal picker which comprises a fluidized bed and a casing arranged on the fluidized bed. The fluidized bed is internally provided with a chain scraping plate discharge delivery mechanism in a symmetric way, a floating material discharge hole is arranged at the front side of the fluidized bed, a sinking material discharge hole is arranged at the back side of the fluidized bed, and the floating material discharge hole and the sinking material discharge hole are both provided with a short distance reflux device. The air dense medium fluidized bed coal picker can realize short distance reflux medium solid on picked materials, and can reduce the amount of the medium solid which is brought out from the coal picker following products. By an industrial experiment, the amount of the medium solid which is brought out following the products can be reduced by over 80 percent. The air dense medium fluidized bed coal picker has the advantages that the structure is compact, material adding equipment is not needed to be added, the power consumption is little, the running cost is greatly lowered, the discharge space is small, and the separation effect is favorable, thereby having wide practicability.

Description

A kind of air dense medium fluidized bed coal picker
Technical field
The utility model relates to a kind of air dense medium fluidized bed coal picker, is particularly useful for the dry coal preparation of mining industry processing.
Background technology
Utilize the air dense medium fluidized bed dry coal preparation can save great amount of water resources, reduce environmental pollution, all be one of problem of this those skilled in the art's research for a long time, Chinese patent " ZL87207129; name is called: the dressing coal with dry fluidized bed device " and " ZL92111310.2; name is called large air fluidized bed for separating heavy solids medium " disclosed dry separation coal are applied in engineering reality, and obtain better effects, but in application process along with the medium solid quantity of taking coal picker in the sorted product out of is bigger all the time, and in assorting room, to guarantee the bed height of fluid bed, the medium solid number needs that recycles will constantly be added, to guarantee separating effect, cause the total platform number of equipment in the system to increase, the power consumption that coal separation is gone into by unit increases, simultaneously because medium solid occupies the discharge space treating capacity of coal picker is adversely affected.
The utility model content
The purpose of this utility model is in order to overcome the deficiency in the prior art, a kind of compact conformation to be provided, but short distance backflow medium solid reduces the outflow of medium solid quantity with product, reduces cost good separation effect, the air dense medium fluidized bed coal picker that power consumption is little.
For achieving the above object, air dense medium fluidized bed coal picker of the present utility model, comprise fluid bed and be located at fluid bed on casing, be arranged with the discharge conveying mechanism in the fluid bed, the front side of fluid bed is provided with floating thing discharge gate, rear side is provided with the hypostasis discharge gate, and described floating thing discharge gate and hypostasis discharge gate place are equipped with the short distance reflux; The short distance reflux of floating thing exhaust end comprises the floating thing sieve plate that is installed on the casing, tilting gravity flow screen at floating thing discharge exit passageway inwall, and gravity flow screen has long-pending plate and the air distribution plate adjusted of compass screen surface; The short distance reflux of hypostasis discharge gate comprises the ascent stage compass screen surface, the ascent stage compass screen surface is connected with tilting descending branch compass screen surface, ascent stage compass screen surface and descending branch compass screen surface all are fixed on the installing frame, the below of ascent stage compass screen surface is provided with the hypostasis sieve plate, be provided with the air distribution plate that gathers materials below the hypostasis sieve plate, the air distribution plate that gathers materials is connected with the powders flowing purification conveyance conduit, descending branch compass screen surface below is provided with the long-pending plate of adjusting of compass screen surface, the powders flowing purification conveyance conduit is provided with diffluence pass, the defeated material passage and the Compressed Gas passage that are arranged above and below, be provided with defeated material air distribution plate between defeated material passage and the Compressed Gas passage, the side of fluidisation conveyance conduit is provided with charging aperture.
Described floating thing sieve plate by the frame that plays the slideway effect, be installed in the stainless steel strip slotted screen net on the frame, the reinforcement that is distributed on the frame constitutes; The compass screen surface of described hypostasis sieve plate is broken line shape; Described ascent stage compass screen surface is a stainless steel strip slotted screen net; The descending branch compass screen surface is a woven screen; Be equipped with firmization gusset under the screen cloth of described ascent stage compass screen surface and descending branch compass screen surface.
The beneficial effects of the utility model: carry out separating of product and medium solid with screen cloth, can realize short distance backflow medium solid to selected material, can reduce with product and take coal picker medium solid quantity out of,, take medium solid quantity out of with product and can reduce more than 80% through type approval test, need not increase and add material equipment, greatly reduce the operation power consumption, have the efficient height, simple in structure, cost is low, the advantage of good separation effect.
Description of drawings
Accompanying drawing is a structure chart of the present utility model.
Among the figure: the floating saturating compass screen surface of thing discharge gate 2-of 1-is long-pending to be adjusted the floating thing sieve plate 6-stainless steel strip slotted screen 7-frame 8-reinforcement 9-scraper plate 10--casing 11-fluid bed 12-powders flowing purification conveyance conduit 13-conveying air distribution plate 14-Compressed Gas passage 15-conveying passage 16-diffluence pass 17-installing frame 18-charging aperture 19-ascent stage compass screen surface 20-of plate 3-gravity flow screen 4-air distribution plate 5-and has just changed gusset 21-discharge conveying mechanism 22-hypostasis discharge gate 23-and thoroughly sieve and adjust the plate 24-descending branch compass screen surface 25-air distribution plate 26-hypostasis sieve plate that gathers materials.
The specific embodiment
The utility model will be further described below in conjunction with the embodiment in the accompanying drawing:
Air dense medium fluidized bed coal picker of the present utility model, comprise fluid bed 11 and be located at fluid bed 11 on casing 10, be arranged with by sprocket wheel, chain in the fluid bed 11, be spaced the discharge conveying mechanism 21 of the scraper plate 9 on chain, the front side of fluid bed 11 is provided with floating thing discharge gate 1, rear side is provided with hypostasis discharge gate 22, and described floating thing discharge gate 1 is equipped with the short distance reflux with hypostasis discharge gate 22 places.The short distance reflux of floating thing discharge gate 1 is made up of the floating thing sieve plate 5, gravity flow screen 3, saturating compass screen surface long-pending adjustment plate 2 and the air distribution plate 4 that are installed on the casing 10, floating thing sieve plate 5 is installed on the casing 10, gravity flow screen 3 is tilting on the inwall of floating thing discharge exit passageway, and gravity flow screen 3 has the long-pending adjustment of compass screen surface plate 2 and sieves air distribution plate 4 down.The position of floating thing sieve plate 5 is higher than the highest interface of fluid bed 11, be positioned at the bottom surface of scraper plate 9 simultaneously, floating thing sieve plate 5 is made up of stainless steel strip slotted screen net 6, frame 7 and reinforcement 8, the angle of its installation is subject to processing quantitative limitation, the de-mediated ability is subjected to the restriction of setting angle, sieve seam width and sieve plate length, use stainless steel strip slotted screen net 6 can increase antiwear property, and reinforcement 8 can be strengthened the rigidity of sieve plate, avoids entering the vicious circle damage process because of the compass screen surface bending.The below of floating thing sieve plate 5 is casings 10, casing 10 has certain angle, this angle is not more than the natural stocking angle of screenings, so screenings can not turn back in the fluid bed 11 in the gravity flow mode, but the scraper plate driving-chain in this position be the slack list and the direction of motion towards fluid bed 11, the discharge scraper plate 9 of setting can be carried back fluid bed 11 with the screenings that floats the thing sieve plate.The main body of gravity flow screen 3 is woven screens, and the long-pending plate 2 of adjusting of saturating compass screen surface is connected with gravity flow screen 3, can not carry back fluid bed 11 by the discharge scraper plate because of the material under the gravity flow screen 3, so have air distribution plate 4 at gravity flow screen 3, they all are installed on the casing 10.At floating thing discharge gate 1, scraper plate 9 carries out removing of medium solid with material web supernatant sieve plate, its screenings drops on the base plate of casing 10, carry back fluid bed by scraper plate 9, the gravity flow screen that oversize is installed in front end continues to remove medium solid, amass adjustment plate 2 by saturating compass screen surface and determine that the saturating compass screen surface of gravity flow screens 3 is long-pending, its screenings is delivered to by air distribution plate under the sieve can be by the position of scraper plate conveying.The short distance reflux of hypostasis discharge gate 22 mainly by the hypostasis sieve plate 26 of ascent stage compass screen surface 19, broken line shape, saturating sieve adjust plate 23, but gather materials air distribution plate 25 and fluidised powder material conveying tube road 12 form.Ascent stage compass screen surface 19 connects tilting descending branch compass screen surface 24, and ascent stage compass screen surface 19 is a stainless steel strip slotted screen net, and descending branch compass screen surface 24 is a woven screen.Ascent stage compass screen surface 19 and descending branch compass screen surface 24 all are fixed on the installing frame 17, are equipped with firmization gusset 20 under the screen cloth of ascent stage compass screen surface 19 and descending branch compass screen surface 24.The below of ascent stage compass screen surface 19 is provided with hypostasis sieve plate 26, and the compass screen surface of hypostasis sieve plate 26 is broken line shape.Be provided with the air distribution plate 25 that gathers materials below the hypostasis sieve plate 26, the air distribution plate 25 that gathers materials is connected with powders flowing purification conveyance conduit 12, descending branch compass screen surface 24 belows are provided with the long-pending plate 23 of adjusting of compass screen surface, defeated material passage 15 and Compressed Gas passage 14 that powders flowing purification conveyance conduit 12 is provided with diffluence pass 16, is arranged above and below, be provided with defeated material air distribution plate 13 between defeated material passage 15 and the Compressed Gas passage 14, the side of fluidisation conveyance conduit 12 is provided with charging aperture 18.Floating thing sieve plate 5 by the frame 7 that plays the slideway effect, be installed in the stainless steel strip slotted screen net 6 on the frame 7, be distributed in reinforcement 8 formations on the frame 7.At hypostasis discharge gate 22, scraper plate carries out medium solid with hypostasis sieve plate 26 on the material web for 24 sections at ascent stage face 19 and decline face and removes, adjust long-pending adjustment of saturating compass screen surface of 23 pairs of whereabouts sections of plate by saturating sieve, reach the purpose of control backflow medium solid quantity, the air distribution plate 25 that gathers materials that tilts is carried back fluid bed 11 by powders flowing purification conveyance conduit 12 again with the direction enrichment of screenings to fluid bed.

Claims (5)

1. air dense medium fluidized bed coal picker, comprise fluid bed (11) and be located at fluid bed (11) on casing (10), be arranged with discharge conveying mechanism (21) in the fluid bed (11), the front side of fluid bed (11) is provided with floating thing discharge gate (1), rear side is provided with hypostasis discharge gate (22), it is characterized in that: described floating thing discharge gate (1) locates to be equipped with the short distance reflux with hypostasis discharge gate (22); The short distance reflux of floating thing exhaust end (1) comprises the floating thing sieve plate (5) that is installed on the casing (10), tilting gravity flow screen (3) at floating thing discharge exit passageway inwall, and gravity flow screen (3) has long-pending plate (2) and the air distribution plate (4) adjusted of compass screen surface; The short distance reflux of hypostasis discharge gate (22) comprises ascent stage compass screen surface (19), ascent stage compass screen surface (19) is connected with tilting descending branch compass screen surface (24), ascent stage compass screen surface (19) and descending branch compass screen surface (24) all are fixed on the installing frame (17), the below of ascent stage compass screen surface (19) is provided with hypostasis sieve plate (26), be provided with the air distribution plate that gathers materials (25) below the hypostasis sieve plate (26), the air distribution plate (25) that gathers materials is connected with powders flowing purification conveyance conduit (12), descending branch compass screen surface (24) below is provided with the long-pending plate (23) of adjusting of compass screen surface, powders flowing purification conveyance conduit (12) is provided with diffluence pass (16), defeated material passage (15) that is arranged above and below and Compressed Gas passage (14), be provided with defeated material air distribution plate (13) between defeated material passage (15) and the Compressed Gas passage (14), the side of fluidisation conveyance conduit (12) is provided with charging aperture (18).
2. air dense medium fluidized bed coal picker according to claim 1, it is characterized in that: described floating thing sieve plate (5) by the frame that plays the slideway effect (7), be installed in the stainless steel strip slotted screen net (6) on the frame (7), the reinforcement (8) that is distributed on the frame (7) constitutes.
3. air dense medium fluidized bed coal picker according to claim 1 is characterized in that: the compass screen surface of described hypostasis sieve plate (26) is broken line shape.
4. air dense medium fluidized bed coal picker according to claim 1 is characterized in that: described ascent stage compass screen surface (19) is a stainless steel strip slotted screen net; Descending branch compass screen surface (24) is a woven screen.
5. according to claim 1 or 4 described air dense medium fluidized bed coal pickers, it is characterized in that: be equipped with firmization gusset (20) under the screen cloth of described ascent stage compass screen surface (19) and descending branch compass screen surface (24).
CNU2008200321229U 2008-03-13 2008-03-13 Fluidized bed coal picker of air weight medium Expired - Lifetime CN201179477Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008200321229U CN201179477Y (en) 2008-03-13 2008-03-13 Fluidized bed coal picker of air weight medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008200321229U CN201179477Y (en) 2008-03-13 2008-03-13 Fluidized bed coal picker of air weight medium

Publications (1)

Publication Number Publication Date
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102389651A (en) * 2011-08-16 2012-03-28 国家林业局哈尔滨林业机械研究所 Separating apparatus used for separating mixture of solids with density greater than that of water and solids with density lower than that of water
CN102974543A (en) * 2012-12-18 2013-03-20 孙刚 Dense-medium dry separation equipment
CN103517770A (en) * 2011-05-03 2014-01-15 布勒股份公司 Method and device for fractionating bulk material
CN103773544A (en) * 2014-01-20 2014-05-07 中国矿业大学 Pulse fluidization-based integrated de-ashing and dehydrating method and equipment of brown coal
CN104525359A (en) * 2014-12-30 2015-04-22 唐山市神州机械有限公司 Dry method heavy media separator adopting dry method heavy media separation bed and separation device
CN108620226A (en) * 2018-04-21 2018-10-09 临沂清宇环境资源综合利用研究院有限公司 A kind of house refuse cleans the device of the weights such as sorting sandstone

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103517770A (en) * 2011-05-03 2014-01-15 布勒股份公司 Method and device for fractionating bulk material
CN102389651A (en) * 2011-08-16 2012-03-28 国家林业局哈尔滨林业机械研究所 Separating apparatus used for separating mixture of solids with density greater than that of water and solids with density lower than that of water
CN102974543A (en) * 2012-12-18 2013-03-20 孙刚 Dense-medium dry separation equipment
CN103773544A (en) * 2014-01-20 2014-05-07 中国矿业大学 Pulse fluidization-based integrated de-ashing and dehydrating method and equipment of brown coal
CN103773544B (en) * 2014-01-20 2015-07-15 中国矿业大学 Pulse fluidization-based integrated de-ashing and dehydrating method and equipment of brown coal
CN104525359A (en) * 2014-12-30 2015-04-22 唐山市神州机械有限公司 Dry method heavy media separator adopting dry method heavy media separation bed and separation device
CN108620226A (en) * 2018-04-21 2018-10-09 临沂清宇环境资源综合利用研究院有限公司 A kind of house refuse cleans the device of the weights such as sorting sandstone
CN108620226B (en) * 2018-04-21 2021-03-26 青岛福创环境科技有限公司 Device for cleanly sorting sandstone, glass and ceramic from household garbage

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Granted publication date: 20090114