CN101838540B - Vibrational fluidized bed device for controlling humidity and grading coking coal and fluidizing process thereof - Google Patents
Vibrational fluidized bed device for controlling humidity and grading coking coal and fluidizing process thereof Download PDFInfo
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- CN101838540B CN101838540B CN 201010156548 CN201010156548A CN101838540B CN 101838540 B CN101838540 B CN 101838540B CN 201010156548 CN201010156548 CN 201010156548 CN 201010156548 A CN201010156548 A CN 201010156548A CN 101838540 B CN101838540 B CN 101838540B
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Abstract
The invention relates to a vibrational fluidized bed device for controlling humidity and grading coking coal and a fluidizing process thereof and belongs to the field of fluidizing and humidifying of the coking coal. The device and the process can realize humidity adjustment and efficient separation of the coking coal. The device comprises a linear driving device, a non-uniform pressure air box, a fluidized drying and grading chamber, gas material separation chambers and a large-particle coal collecting chamber and is characterized in that: the gas material separation chambers are positioned on both sides and the tail end side of the fluidized drying and grading chamber respectively; the linear driving device is connected with the bottom of the non-uniform pressure air box; an air distribution plate is arranged between the top of the non-uniform pressure air box and the fluidized drying and grading chamber; and a plurality of small-particle coal scraper plates are arranged above the air distribution plate and lead to the gas material separation chambers. The device and the process have the advantages of capability of effectively solving blocking and material leaking problems on the air distribution plate, uniform fluidization, remarkable drying effect, high thermal efficiency, good fluidized bed delamination and high separation accuracy. Moreover, the small-particle coal scraper plate has the advantages of simple structure, low failure rate and remarkable separation effect.
Description
Technical field
The present invention relates to a kind of vibratory liquefaction device and fluid technology thereof for coking coal dampness control and classification, belong to coking coal fluidisation damping field.
Background technology
The size classification technology of coking coal is subordinated to the selectivity disintegrating process, this technique is the difference on hardness according to coal in the coking coal materials and petrofacies composition, by different grinding particle size requirements, will pulverize with the screening (or wind-force separates) combine, claim again the petrofacies circuit grinding.Adopt this technique can make the coal charge granularity more even, not only eliminated macrobead but also prevent meticulous pulverizing, and make inert component reach suitable fineness.
The coking coal humidifying technology is that coking coal materials is removed portion of water before shove charge, the coking by coke oven of packing into after the maintenance coal charge moisture is stabilized in about 6%.
More than two kinds of technology all can improve coke quality, they will lean on two cover self-contained systems general realization, as above at the beginning of the century 70, USSR (Union of Soviet Socialist Republics) has adopted a kind of selection disintegrating process that is called the wind-force partition method the earliest, China Jiuquan Iron ﹠ Steel Co. has introduced this technology in about 2002, that uses is the fixed bed fluidizer; What the coal conditioning technique was at home and abroad used has two kinds, wherein one, two of nippon Co., Ltd. exploitation, three generations's coking coal humidifying technology, has adopted respectively multitube to return drying installation and fixed bed fluidizer.
The advantage that the humidity control of coking coal and classification technique combine coal conditioning technique and selectivity disintegrating process, the open report relevant with this technology has Chinese patent file CN101063059A " moving iris type fluidized bed " at present, CN1834560A " wind driven separation dryer of semi-fluidizing fluid-bed ", the full content that the present invention quotes these two parts of patent documents is technology as a setting, and their weak point is: 1) air distribution plate stops up and leaks material; 2) fluidisation is uneven, and the hot gas flow short circuit causes drying effect poor low with thermo-efficiency; 3) the fluidized-bed layering is poor, and separation accuracy is low; 4) scrapper conveyor complex structure, failure rate is high.
Summary of the invention
The deficiency that exists for overcoming prior art the invention provides a kind of vibrational fluidized bed device for coking coal dampness control and classification.
The present invention also discloses a kind of technique of utilizing this device to carry out fluidisation.
The present invention can realize coking coal dampness is regulated, and can realize again the effective separation of large grade coal and granule level coal, and simple in structure, move smooth and easy, failure rate is low.
Technical scheme of the present invention is as follows:
A kind of vibrational fluidized bed device for coking coal dampness control and classification, it comprises linear actuating device, uneven bellows, fluidized drying grading room, Conveyance chamber and the large beans collecting chamber of pressing, it is characterized in that, described Conveyance chamber lays respectively at both sides and the end side of fluidized drying grading room, linear actuating device presses the bottom of bellows to link to each other with inequality, be provided with air distribution plate between the top of uneven pressure bellows and the fluidized drying grading room, polylith Bed for Fine Coal scraper plate is set, Bed for Fine Coal scraper plate guiding Conveyance chamber above air distribution plate.The exciting force that the present invention utilizes linear actuating device to press bellows that air distribution plate is applied forward and makes progress by inequality because exciting force does not directly act on air distribution plate, therefore reduces the vibration intensity of air distribution plate, reduces the loss of equipment; Polylith Bed for Fine Coal scraper plate is set above air distribution plate, increase is to the guide effect of Bed for Fine Coal, make Bed for Fine Coal under the comprehensive action of Bed for Fine Coal scraper plate and air-out gravitation, major part is brought into the Conveyance chamber by air-flow, be designed with the layering that helps coking coal, the separation accuracy that improves coking coal herein, and the Bed for Fine Coal scraper plate is simple in structure, failure rate is low.
Described Bed for Fine Coal scraper plate is arc.Guiding and the air inducing effect of arc design herein are remarkable.
The angular range of described air distribution plate and horizontal plane: 5 °～30 °; On the air distribution plate with blast cap.5 °～30 ° angular range makes coking coal fluidisation under the comprehensive action of gravity, vibration force and hot gas flow advance the most smooth and easy; Adopt blast cap on the air distribution plate, the generation of effectively having avoided air distribution plate to stop up and leak material.
Described fluidized drying grading room comprises cover body, outward-dipping blocking material plate all around, adopts the parts that are flexible coupling to be flexible coupling between cover body and the blocking material plate, links to each other around the bottom of blocking material plate and the air distribution plate.The parts that are flexible coupling that herein adopt link to each other cover body with blocking material plate, can reduce fluidized vibrating to the impact of whole equipment.
Arrange respectively one and go out the fertilizer mouth on the blocking material plate of air distribution plate both sides and end side, three Conveyance chambers are respectively by going out fertilizer mouth, gas material conduit and be flexible coupling parts and fluidized drying grading room are flexible coupling.
Gas material conduit on the blocking material plate of described air distribution plate end side passes out the fertilizer mouth and enters the fluidized drying grading room, and the angular range of this gas material conduit and air distribution plate is 5 °～20 °; Described air distribution plate end side extended spot has the outlet of large beans, and large beans collecting chamber is flexible coupling by large beans outlet and be flexible coupling parts and fluidized drying grading room; The gas material conduit of air distribution plate end side is relative up and down with large beans outlet.Design has herein improved the separation accuracy of coking coal greatly, so that the coking coal of granularity between large grain and particulate can enter into the Conveyance chamber by the gas material conduit of air distribution plate end side.
The described uneven bellows of pressing are divided into two sections that do not communicate by dividing plate, and each section all has blast inlet and air outlet separately, and air outlet is positioned at uneven top of pressing bellows.Design herein can provide according to the needs of producing the hot gas flow of different air quantity and pressure.
Described cover body is provided with charging opening, and the charging opening place is provided with the sealed motive force feeding device; The top of described Conveyance chamber is provided with the air outlet, and feed opening is arranged at the bottom, and its feed opening is connected to the sealed motive force dumping device; Feed opening is arranged at described large beans collecting chamber bottom, and its feed opening is connected to the sealed motive force dumping device.Being designed with of Conveyance chamber is beneficial to separating of gas and coal charge, and sealed motive force dumping device and sealing feeding device have then solved the problems such as hot gas flow short circuit, thermo-efficiency be low.
A kind of fluid technology that utilizes above device to realize the coking coal fluidisation, step is as follows:
A) to air distribution plate, the feed-type of sealed motive force feeding device can be vibrating feed mode, screw feeder mode or rotation feed-type to wet coking coal herein by the even pan feeding of sealed motive force feeding device at charging opening place.
B) linear actuating device presses bellows to apply upwards and exciting force forward to air distribution plate by inequality, hot gas flow enters respectively the uneven bellows of pressing by two blast inlets simultaneously, hot gas flow blows out by the blast cap on the air distribution plate, makes coking coal can carry out efficient drying under the dual function of vibration force and hot gas flow.
C) coking coal terminal fluidisation to air distribution plate under the effect of hot gas flow, gravity and vibration force is advanced.
D) Bed for Fine Coal in the coking coal is positioned at the upper strata of the fluidisation bed of material under the dual function of hot gas flow and vibration, large beans is positioned at lower floor, when coking coal arrives the Bed for Fine Coal scraper plate, under the comprehensive action of Bed for Fine Coal scraper plate and air-out gravitation, most of Bed for Fine Coal is brought into the Conveyance chamber by air-flow, large beans below the Bed for Fine Coal scraper plate by and move on, enter at last the large beans collecting chamber of fluidized drying grading room below by the large beans outlet of air distribution plate end.
E) another part Bed for Fine Coal is brought into the Conveyance chamber of fluidized drying grading room end side by air-flow through the gas material conduit of air distribution plate end side under the comprehensive action of vibration and air-out gravitation.
F) Bed for Fine Coal that enters the Conveyance chamber is sunk, hot gas flow is discharged by the air outlet at top, air outlet at top, Conveyance chamber connects a purifying and dedusting equipment in case of necessity, the simultaneously regularly discharging of sealed motive force dumping device in Conveyance chamber and the large beans collecting chamber, the discharge way of sealed motive force dumping device can be vibration discharge way, screw unloading mode or rotation discharge way herein.
The invention has the advantages that:
1) avoid air distribution plate to stop up and leak the generation of material problem;
2) fluidisation is even, and drying effect is obvious and thermo-efficiency is high;
3) the fluidized-bed layering is good, and separation accuracy is high;
4) the Bed for Fine Coal blade structure is simple, failure rate is low, and separating effect is obvious.
5) adopt a large amount of being flexible coupling, reduced fluidized vibrating to the impact of whole equipment, be conducive to equipment enlarging.
6) simple in structure, invest little, to the drying of coking coal with fractional efficiency is high, energy consumption is low and it is smooth and easy to move, and is particularly suitable for size classification and the moisture control of coking coal in the coking industry.
Description of drawings
Fig. 1 is main TV structure synoptic diagram of the present invention
Fig. 2 is right TV structure synoptic diagram of the present invention
Fig. 3 is the indoor plan structure synoptic diagram of fluidized drying on the air distribution plate
In Fig. 1-3,1, charging opening; 2, cover body; 3, the parts that are flexible coupling; 4, blocking material plate; 5, the uneven bellows of pressing; 6, drive-motor; 7, air distribution plate; 8, air outlet; 9, Conveyance chamber; 10, go out the fertilizer mouth; 11, gas material conduit; 12, large beans collecting chamber; 13, sealed motive force dumping device; 14, transmission rod; 15, support spring; 16, bellows dividing plate; 17, blast inlet; 18, support steel beam; 19, arc Bed for Fine Coal scraper plate; 20, blast cap; 21, large beans outlet.
Embodiment
Below in conjunction with accompanying drawing the present invention is done and to describe in further detail:
As shown in Figure 1, 2, 3, the present invention includes charging opening 1, cover body 2, blocking material plate 4, inequality pressure bellows 5, linear actuating device, air distribution plate 7, air outlet 8, Conveyance chamber 9, go out fertilizer mouth 10, large beans collecting chamber 12, sealed motive force dumping device 13, blast inlet 17, support steel beam 18, arc Bed for Fine Coal scraper plate 19, large beans outlet 21, wherein linear actuating device is comprised of transmission rod 14, support spring 15 and drive-motor 6.
The fluidized drying grading room is supported by support steel beam 18, and charging opening 1 is positioned on the cover body 2, and is furnished with sealing material feeder quantitative and even pan feeding;
The uneven bellows 5 of pressing are separated into two portions by bellows dividing plate 16, and independently blast inlet 17 is respectively arranged, and the bellows top links to each other with air distribution plate 7 with blast cap 20, is with inclination blocking material plate 4 around the air distribution plate 7, the angular range of air distribution plate 7 and horizontal plane: 5 °～30 °;
Have three to go out fertilizer mouth 10 in air distribution plate both sides and terminal blocking material plate 4, the cross section of drawing on it is that rectangle gas material conduit 11 is connected with three Conveyance chambers 9 by the parts 3 that are flexible coupling respectively;
Each two arc Bed for Fine Coal scraper plate 19 that arrange that one is long and the other is short on the blocking material plate 4 of air distribution plate both sides, this arc Bed for Fine Coal scraper plate 19 is positioned at the top of air distribution plate, and it can be with the symmetrical adjustment of the height that goes out fertilizer mouth 10 of air distribution plate both sides with the air distribution plate distance;
Linear actuating device is comprised of drive-motor 6, transmission rod 13 and support spring 15.Wherein drive-motor 6 links to each other with an end of transmission rod 13, and the other end of transmission rod 13 presses the bottom of bellows 5 to link to each other with inequality, and support spring 15 also is positioned at uneven bottom of pressing bellows 5.This linear actuating device presses 5 pairs of air distribution plates 7 of bellows to provide upwards and exciting force forward by inequality, is used for driving its stationary vibration.
The step of concrete fluid technology is as follows:
A) to air distribution plate 7, the feed-type of sealed motive force feeding device can be vibrating feed mode, screw feeder mode or rotation feed-type to wet coking coal herein by the even pan feeding of sealed motive force feeding device at charging opening 1 place.
B) linear actuating device presses bellows 5 to apply upwards and exciting force forward to air distribution plate 7 by inequality, hot gas flow enters respectively the uneven bellows 5 of pressing by blast inlet 17 simultaneously, hot gas flow blows out by the blast cap 20 on the air distribution plate 7, makes coking coal can carry out efficient drying under the dual function of vibration force and hot gas flow.
C) coking coal terminal fluidisation to air distribution plate 7 under the effect of hot gas flow, gravity and vibration force is advanced.
D) Bed for Fine Coal in the coking coal is positioned at the upper strata of the fluidisation bed of material under the dual function of hot gas flow and vibration, large beans is positioned at lower floor, when coking coal arrives Bed for Fine Coal scraper plate 19, under the comprehensive action of Bed for Fine Coal scraper plate and air-out gravitation, most of Bed for Fine Coal is brought into Conveyance chamber 9 by air-flow, large beans below Bed for Fine Coal scraper plate 19 by and move on, enter at last the large beans collecting chamber 10 of fluidized drying grading room below by the large beans outlet of air distribution plate 7 ends.
E) another part Bed for Fine Coal is brought into the Conveyance chamber 9 of fluidized drying grading room end side by air-flow through the gas material conduit 11 of air distribution plate 7 end sides under the comprehensive action of vibration and air-out gravitation.
F) Bed for Fine Coal that enters Conveyance chamber 9 is sunk, hot gas flow is discharged by the air outlet 8 at top, air outlet at top, Conveyance chamber connects a purifying and dedusting equipment in case of necessity, the simultaneously sealed motive force dumping device 13 regularly dischargings in Conveyance chamber 9 and the large beans collecting chamber 10, the discharge way of sealed motive force dumping device 13 can be vibration discharge way, screw unloading mode or rotation discharge way herein.
The final realization the wet coal moisture control of coking and effectively classification.
Claims (9)
1. vibrational fluidized bed device that is used for coking coal dampness control and classification, it comprises linear actuating device, the uneven bellows of pressing, the fluidized drying grading room, Conveyance chamber and large beans collecting chamber, wherein large beans collecting chamber is positioned at the below of fluidized drying grading room, it is characterized in that, described Conveyance chamber lays respectively at both sides and the end side of fluidized drying grading room, linear actuating device presses the bottom of bellows to link to each other with inequality, be provided with air distribution plate between the top of uneven pressure bellows and the fluidized drying grading room, polylith Bed for Fine Coal scraper plate is set, Bed for Fine Coal scraper plate guiding Conveyance chamber above air distribution plate; The angular range of described air distribution plate and horizontal plane: 5 °～30 °; On the air distribution plate with blast cap.
2. the vibrational fluidized bed device for coking coal dampness control and classification according to claim 1 is characterized in that described Bed for Fine Coal scraper plate is arc.
3. the vibrational fluidized bed device for coking coal dampness control and classification according to claim 1, it is characterized in that, described fluidized drying grading room comprises cover body, outward-dipping blocking material plate all around, adopt the parts that are flexible coupling to be flexible coupling between cover body and the blocking material plate, the bottom of blocking material plate links to each other all around with air distribution plate.
4. the vibrational fluidized bed device for coking coal dampness control and classification according to claim 3, it is characterized in that, arrange respectively one and go out the fertilizer mouth on the blocking material plate of air distribution plate both sides and end side, three Conveyance chambers are respectively by going out fertilizer mouth, gas material conduit and be flexible coupling parts and fluidized drying grading room are flexible coupling.
5. the vibrational fluidized bed device for coking coal dampness control and classification according to claim 4, it is characterized in that, gas material conduit on the blocking material plate of described air distribution plate end side passes out the fertilizer mouth and enters the fluidized drying grading room, and the angular range of this gas material conduit and air distribution plate is 5 °～20 °; Described air distribution plate end side extended spot has the outlet of large beans, and large beans collecting chamber is flexible coupling by large beans outlet and be flexible coupling parts and fluidized drying grading room; The gas material conduit of air distribution plate end side is relative up and down with large beans outlet.
6. the vibrational fluidized bed device for coking coal dampness control and classification according to claim 3 is characterized in that described cover body is provided with charging opening, and the charging opening place is provided with the sealed motive force feeding device.
7. the vibrational fluidized bed device for coking coal dampness control and classification according to claim 1, it is characterized in that, the described uneven bellows of pressing are divided into two sections that do not communicate by dividing plate, and each section all has blast inlet and air outlet separately, and air outlet is positioned at uneven top of pressing bellows.
8. the vibrational fluidized bed device for coking coal dampness control and classification according to claim 1 is characterized in that, the air outlet of described Conveyance chamber, and feed opening is arranged at the bottom, and its feed opening is connected to the sealed motive force dumping device; Feed opening is arranged at described large beans collecting chamber bottom, and its feed opening is connected to the sealed motive force dumping device.
9. one kind is utilized the vibrational fluidized bed device for coking coal dampness control and classification claimed in claim 1 to realize the processing method of coking coal fluidisation, and step is as follows:
A) to air distribution plate, the feed-type of sealed motive force feeding device is vibrating feed mode, screw feeder mode or rotation feed-type to wet coking coal herein by the even pan feeding of sealed motive force feeding device at charging opening place;
B) linear actuating device presses bellows to apply upwards and exciting force forward to air distribution plate by inequality, hot gas flow enters respectively the uneven bellows of pressing by two blast inlets simultaneously, hot gas flow blows out by the blast cap on the air distribution plate, and vibration force and hot gas flow are dry to the coking coal dual function;
C) coking coal terminal fluidisation to air distribution plate under the effect of gravity and vibration force is advanced;
D) Bed for Fine Coal in the coking coal is positioned at the upper strata of the fluidisation bed of material under the dual function of hot gas flow and vibration, large beans is positioned at lower floor, when coking coal arrives the Bed for Fine Coal scraper plate, under the comprehensive action of Bed for Fine Coal scraper plate and air-out gravitation, most of Bed for Fine Coal is brought into the Conveyance chamber by air-flow, large beans below the Bed for Fine Coal scraper plate by and move on, enter at last the large beans collecting chamber of fluidized drying grading room below by the large beans outlet of air distribution plate end;
E) another part Bed for Fine Coal is brought into the Conveyance chamber of fluidized drying grading room end side by air-flow through the gas material conduit of air distribution plate end side under the comprehensive action of vibration and air-out gravitation;
F) Bed for Fine Coal that enters the Conveyance chamber is sunk, hot gas flow is discharged by the air outlet at top, air outlet at top, Conveyance chamber connects a purifying and dedusting equipment in case of necessity, the simultaneously regularly discharging of sealed motive force dumping device in Conveyance chamber and the large beans collecting chamber, the discharge way of sealed motive force dumping device can be vibration discharge way, screw unloading mode or rotation discharge way herein.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010156548 CN101838540B (en) | 2010-04-27 | 2010-04-27 | Vibrational fluidized bed device for controlling humidity and grading coking coal and fluidizing process thereof |
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| CN 201010156548 CN101838540B (en) | 2010-04-27 | 2010-04-27 | Vibrational fluidized bed device for controlling humidity and grading coking coal and fluidizing process thereof |
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| CN101838540B true CN101838540B (en) | 2013-03-13 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103196281B (en) * | 2013-04-02 | 2015-01-21 | 中国矿业大学 | Drying and separation integrated machine for vibrated fluidized bed |
| CN103695017B (en) * | 2013-12-23 | 2014-12-24 | 青岛利物浦环保科技有限公司 | Humidifying and sorting machine of compound fluidized bed coal and humidifying and sorting technology |
| CN104097868A (en) * | 2014-07-09 | 2014-10-15 | 莱芜钢铁集团有限公司 | Vibrated fluidized bed |
| CN104776686B (en) * | 2015-04-07 | 2017-04-26 | 华中科技大学 | Fluidized bed grading and drying device applicable to high-moisture and large-grain-size low-rank coal |
| CN106440666B (en) * | 2016-07-31 | 2020-07-14 | 武汉贵言机械制造有限公司 | Boiling type drying machine |
| CN111097693A (en) * | 2019-12-27 | 2020-05-05 | 河南理工大学 | Continuous drying and sorting integrated equipment and method for wet fine coal |
| CN113883862B (en) * | 2021-09-27 | 2023-06-20 | 圣航粉末冶金河北有限公司 | Drying equipment for powder metallurgy with heat preservation effect |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2001226678A (en) * | 2000-02-10 | 2001-08-21 | Nippon Steel Corp | Moisture controlling apparatus for coal |
| CN1100112C (en) * | 2000-09-22 | 2003-01-29 | 冶金工业部鞍山热能研究院 | Hot air blowing coking coal grading and moisture controlled coal preparation process |
| CN100432185C (en) * | 2006-04-21 | 2008-11-12 | 中冶焦耐工程技术有限公司 | Technique for preparing furnace coal combined coking with coals |
| CN101186830A (en) * | 2007-11-20 | 2008-05-28 | 济南钢铁股份有限公司 | Material distributing method for fluidized bed used for coking coal air current grading and conditioning |
| CN201678625U (en) * | 2010-04-27 | 2010-12-22 | 莱芜钢铁集团有限公司 | Vibrational fluidized bed device for coking coal humidity control and classification |
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