CN201045558Y - Mobile clapboard type fluid bed - Google Patents
Mobile clapboard type fluid bed Download PDFInfo
- Publication number
- CN201045558Y CN201045558Y CNU2007200214720U CN200720021472U CN201045558Y CN 201045558 Y CN201045558 Y CN 201045558Y CN U2007200214720 U CNU2007200214720 U CN U2007200214720U CN 200720021472 U CN200720021472 U CN 200720021472U CN 201045558 Y CN201045558 Y CN 201045558Y
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- fluidized bed
- bed body
- air
- fine grained
- coke oven
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Abstract
The utility model discloses a moving iris type fluid bed relating to a large-scale industrial device of coal pretreatment in coking industry. The utility model adopts a plurality of air chambers which are independently distributed, a length direction adopts a plurality of air chambers arrangement, and a width direction is double air chambers arrangement. A star-shaped feeding device is adopted to feed, and a moving iris type device is mounted in a bed body to guarantee the effects of moving and flowing of raw coals. Fluidization time and stepped effect can be controlled by adopting a four-step stepped overflow dam adjustment. Fine-grained raw coals are conveyed to a fine-grained conveyer belt on the tail end of the conveyor by three screw conveyors, coarse-particle raw coals are directly conveyed to a coarse-particle conveyer belt on the he tail end of the conveyor by a chute. The utility model utilizes coke oven air flue discharge gas as a heat source and a power source to dry coals and crush coals in classification, and the three functions of dying, classifying, and preheating which are integrated of mixing coals for coking are achieved, and then products of a coke oven can be improved, energy consumption of the coke oven can be lowered, and surplus smmonia water quantity can be reduced and the like. And waste heat energy utilization can be achieved by utilizing surplus heat of the discharge gas in the coke oven air flue.
Description
Technical field
The utility model relates to the pretreated large scale industry device of a kind of coking industry coal, and is specifically a kind of moving iris type fluidized bed.
Background technology
Over past ten years, coke oven feed coal conditioning technique obtains tremendous development in Japan, and Japan has successively developed three generations's coal conditioning technique, the fluidized bed drying technology of instant heating kerosene dry technology, steam drying technology and employing coke oven flue waste gas.Country such as the U.S., Germany begins to carry out the test and the production practices of coal humidity control device, all obtains favorable economic benefit.And pneumatic selection crushing technology is applied in countries such as Russia, Ukraine, India, has the improvement of obvious energy-saving effect and coke quality.
The pneumatic selection of above-mentioned existing coal humidifying technology and coal pulverize be have respectively different equipment according to separately independently processing step finish, can cause coal pretreating process program complexity like this, equipment is many, investment is big, and the energy consumption height does not meet the demand for development of recycling economy.But, both just like this, the domestic relatively difficulty that implements at present also.At present, domestic raw material mixing coal is carried out the stage that dry suitability for industrialized production mainly also rests on application cylinder formula drying equipment, as the energy-conservation rotating cylinder coal conditioning technique of Tangshan Brach Co., Tiandi Science and Technology Co. Ltd.'s research and development; Though and comparatively advanced fluidized bed drying equipment has been applied in the middle of the different medium of chemical industry, food industry, medicine and biochemistry industrial circle widely, limited by its purposes, its production capacity can only reach usually and be 50t/h to the maximum.
The utility model content
The purpose of this utility model is to overcome the problem that above-mentioned prior art exists, and provide a kind of moving iris type fluidized bed, in a set of equipment, be thermal source and be drying, classification and the preheating that power source is finished coal with coke oven flue waste gas, and then can improve coke oven output, reduce the coke oven energy consumption and reduce coke oven remained ammonia amount etc., can also utilize the waste heat of coke oven flue waste gas, realize the used heat recovery energy.
The technical solution of the utility model is: moving iris type fluidized bed, comprise fluidized bed body, charging gear and discharge device, give the depressed structure and the structure of giving vent to anger, it is characterized in that, the fluidized bed body top connects the air-out structure, the bottom is for having the fluid bed sieve plate of mesh, the below of fluid bed sieve plate is provided with several independent air chambers, and each air chamber all has the air inlet that independently connects coke oven flue waste gas; In fluidized bed body and be positioned at charging gear below be provided with the moveable partition board device, described moveable partition board device is chain that is supported by sprocket wheel and the one group of horizontal parallel dividing plate that is arranged on the chain lateral surface, and the moveable partition board device drives by being positioned at the outer power set of a fluid chamber; Its end away from charging gear of described chain is provided with the coarse granule feed opening; Bunker for collecting communicates with fine grained discharge area in the fluidized bed body, and this district is provided with fine grained classification downflow weir; The bottom of bunker for collecting and the bottom of described air chamber are equipped with the fine grained conveying worm.
The further technical scheme of the utility model is: the fluidized bed body chamber adopts the box structure of cuboid; The top, left side is the star charging gear; Bed body top is a plurality of air outlets, connects deduster after linking with the house steward that gives vent to anger; A plurality of independent air chambers are arranged by two row and corresponding respectively synchronous operated moveable partition board device separately; The bottom of homonymy air chamber all is connected on the fine grained conveying worm of this side.
Be provided with access door in bed body front portion, two bilateral symmetry of quantity; The visor that is positioned at the downflow weir below is equipped with in bed body both sides, and bed body upper back is and the outdoor venting that is communicated with.
It is continuous firing that the bottom of bunker for collecting is provided with the fine grained conveying worm, and the bottom of described air chamber is provided with fine grained conveying worm discontinuous operation.
The beneficial effects of the utility model are:
The utility model is that a cover is drying and the graded crushing that thermal source and power source carry out coal with coke oven flue waste gas, realize that coking is the large scale industry device of a kind of coal pretreating process of one with " drying; classification and preheating " three functions of mixing coal, the successful utilization of this device the drying theory of ripe fluidization of solid, when being reduced to 6% with moisture content of coal from 8～10%, realized coking by coke oven coal grading, especially the structure of its moveable partition board, be equivalent to large-scale fluid bed is partitioned into several movably little fluid beds, thereby improved the fluidization effect of raw coal in equipment, guaranteed the drying effect and the grading effect of raw coal.
The utlity model has 300t/h treating capacity production capacity is greatly improved, and abundant fluidisation is so that coal for coking moisture is reduced to 6% from 8～10%, in fluidized drying, finish the classification of raw coal size, raw coal after the classification is divided into slightly, the fine grained two-way, and the fine grained raw coal is delivered to the direct coking of coking coal tower, coarse granule is delivered to crushing chamber and carries out fragmentation, improves crushing efficiency greatly, reduces broken energy resource consumption.
After testing, adopting this device, the shove charge moisture content of coal reduces to 6% by 8～10%, and coke oven production capacity improves 5% approximately; Coke strenth improves 3% approximately; The coking heat consumption reduces 310kJ/kg approximately; Enlarged the ratio of petrofacies heterogeneity bottle coal in mixed coal; Avoid meticulous pulverizing, controlled granularmetric composition, improved the bulk density of shove charge coal.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is moving iris type fluidized bed front view;
Fig. 2 is moving iris type fluidized bed left view;
Fig. 3 is moving iris type fluidized bed gas and coal charge flow direction structure schematic diagram;
Fig. 4 is moving iris type fluidized bed vertical view cutaway drawing.
Among the figure: 1: the star charging gear, 2: independent air chamber, 3: the conveying worm of outside duff after the classification, 4: the conveyor screw conveyer of inboard duff after the classification, 5: the air chamber air inlet, 6: the conveying worm of residual duff under the air chamber, 7: observe and use visor, 8: air outlet, 9: fluidized bed body, 10: the hopper of the rough coal after the classification, 11: venting, 12: the moveable partition board device, 13: the raw coal in the charging gear hopper, 14: fall the raw coal on the sieve plate, 15: fluidised raw coal on the sieve plate, 16: the bulk raw coal of classified drying; 17: the high-temperature flue waste gas in the fluid bed air chamber, 18: fluid bed sieve plate, 19: finish the waste gas of heat exchange and fluid mapper process, 20: the duff feed opening.
The specific embodiment
Moving iris type fluidized bed, comprise fluidized bed body, charging gear and discharge device, give the depressed structure and the structure of giving vent to anger, and the parts such as moveable partition board device that are positioned at fluidized bed body.
As Fig. 1, Fig. 2, Fig. 3.Fluidized bed body 9 chambers adopt the box structure of cuboid, length * wide * height=12.5 * 5.2 * 3 (m); Fluid bed effective area 32m
2, effective length 10m, effective width 0.8 * 2=1.6m divides level length 8m.The top, left side is a star charging gear 1, on the fluid bed sieve plate 18 of the feed coal of coking in star charging gear 1 enters a body; The bottom is that the below that has the fluid bed sieve plate of mesh is provided with several independent air chambers 2.
For guaranteeing fluid effect, adopt ten independent air chambers 2, length direction adopts five air chambers to arrange, and is that two air chambers are arranged on the width.Adopt a star charging gear to realize the feed of raw coal, each independent air chamber is arranged by two row and corresponding respectively synchronous operated moveable partition board device 12 separately.The air inlet 5 that independently connects coke oven flue waste gas is all arranged at each air chamber bottom; Bed body top is a plurality of air outlets 8, and each air outlet 8 connects deduster after house steward links with giving vent to anger, through entering atmosphere after the deduster dedusting.
In fluidized bed body and be positioned at charging gear below be provided with moveable partition board device 12, described moveable partition board device is in order to guarantee moving and fluid effect of feed coal, ring chain that it is supported by sprocket wheel and the one group of horizontal parallel dividing plate that is arranged on the chain lateral surface, two moveable partition board devices 12 that are synchronized with the movement drive jointly by being positioned at fluid chamber power set outward.The moveable partition board device 12 of both sides is row's independent air chamber 2 of corresponding homonymy respectively.
Be provided with the coarse granule feed opening at its end away from charging gear of chain, flowing in it has bulk raw coal 16 of classified drying, and the coarse granule coal gets on through the hopper 10 of rough coal, coarse fodder belt conveyor that chute directly is delivered to tail and further pulverizes.Bunker for collecting communicates with fine grained discharge area in the fluidized bed body, the fine grained discharge area has three parts in the fluidized bed body, as Fig. 4, two outsides and inboard are equipped with the fine particle collection hopper below duff feed opening 20, through described fine particle collection hopper, fine particulate coal enters the conveying worm 3 of outside duff after the classification respectively, after the classification on the conveyor screw conveyer 4 of inboard duff.Be equipped with the conveying worm 6 of residual duff under the air chamber in the bottom of air chamber.The fine grained raw coal is delivered to through three conveying worms on the fines belt conveyor of tail, and this is the classification coal that meets granularity requirements.
From the security standpoint this equipment designed two with the outdoor venting that is communicated with 11, and static eraser eliminates safe hidden trouble from root.
Bed body rear portion is equipped with 4 downflow weirs that can manually adjust successively, and downflow weir is positioned at bunker for collecting and fluidized bed body fine grained discharge area, is used to adjust the raw meal particle size that will obtain.Adjust the height of first downflow weir according to the fluosolids height of materials, at first this part fine granular materials is separated, three downflow weirs afterwards are adjusted to gradually all＜3mm granularity material are further separated, all the other＞3mm,＜the coarse granule material of 80mm pushes the blanking chute through moveable partition board, enters the hopper 10 of the rough coal after the classification again.The downflow weir below is resistant to elevated temperatures visor 7, and a plurality of visors can be observed fluidized state in process of production, and carry out corresponding parameter adjustment, so that equipment reaches best user mode.
Among Fig. 1: the top, left side is a star charging gear 1, and the bottom is several independent air chambers 2, and each air chamber all has independently air inlet; Fluidized bed body 9 tops are a plurality of gas outlets, connect deduster after linking with the house steward that gives vent to anger.Star-wheel charging gear 1 below is the tail sprocket device of the band tensioning mechanism of moveable partition board device 12, low order end is the head chain gear apparatus, and sprocket wheel drags chain and moves, and dividing plate is fixed on the chain, the drive part of this device is external at bed, has avoided the influence of the high-temperature gas in the bed body.Bed body stem has designed access door, 2 bilateral symmetry of quantity.Resistant to elevated temperatures visor 7 is equipped with in bed body both sides, can effectively observe the fluidisation situation in coal seam, so that timely adjusting process parameter; Low order end is that head chain gear apparatus bottom is a funnel under the coarse fodder, can link to each other with the discharge chute of system; Low order end top is venting 11, and the scene is received this mouth outdoor.
Among Fig. 2: the outermost bottom is the conveying worm 3 of outside duff after the classification, and middle bottom is the conveyor screw conveyer 4 of inboard duff after the classification, is continuous firing.Be the conveying worm 6 of residual duff under two air chambers under two exhaust air boxs, it is that the particulate powders that drains in the air compartment through the sieve plate hole in the bed body is collected and is transported on the fine grained raw material belt at tailstock place, and this conveying worm is interruption work.
Among Fig. 3: be the moving iris type fluidized bed course of work, raw coal 13 in the charging gear hopper enters in the fluid bed, the raw coal of falling on the sieve plate 14 blows to fluidized state through about 220 ℃ coke oven flue waste gas, become fluidised raw coal 15 on the sieve plate, through after fluidisation finishes drying, isolated fine grained feed coal through the conveying worm 3 of outside duff after the classification, classification after the conveyor screw conveyer 4 of inboard duff send into subsequent processing.The bulk raw coal 16 of classified drying is discharged through 12 effects of moveable partition board device, to next procedure.High-temperature flue waste gas with uniform temperature forms the high-temperature flue waste gas 17 in the fluid bed air chamber after air chamber air inlet 5 enters air chamber, this waste gas blows feed coal to fluidized state through the sieve aperture on the fluid bed sieve plate 18, promptly finish fluidization, be steam with the part water transform when finishing heat exchange with coal, the mist of steam and stack gases is that the waste gas of finishing heat exchange and fluid mapper process is discharged through each gas outlet 8.
Among Fig. 4: can see that the fine fraction in the fluidised raw coal on the fluid bed sieve plate 18 can export 20 to conveying worm by fines, remaining raw granulate fraction and remaining fine grained raw coal are pushed to the hopper of rough coal through the dividing plate of moveable partition board device 12.
In a word.On the sieve plate of the feed coal of coking in the star charging gear enters a body, the coke oven flue waste gas of the uniform temperature in the sieve plate lower chamber blows to fluidized state, moveable partition board also promotes material with certain speed and moves to the fluidisation tailstock, further promoted the fluidization of material, the particle of the thinnest level is taken away to the sack cleaner place by flue gas and is collected after the material realization fluidization; The fine granular materials at the top of fluosolids is at first realized drying, adjust the height of first downflow weir according to the fluosolids height of materials, at first this part fine granular materials is separated, three downflow weirs afterwards are adjusted to gradually all＜3mm granularity material are further separated, and wind speed, dividing plate translational speed, height of weir plate all can be adjusted according to the actual index of producing here; All the other＞3mm,＜the coarse granule material of 80mm pushes the blanking chute through moveable partition board, more than is the course of work of material;
Stack gases is extracted out by air exhauster by the turnover panel place under the chimney, deliver to main air supply duct, be divided into ten air ports in the fluid bed main building and deliver to each air compartment, each arm all has the adjustable rectification campaign amount of valve, when participating in goods fluid through sieve plate, finishes stack gases heat exchange, the waste gas that temperature reduces is pooled to behind the house steward through entering atmosphere after the deduster dedusting by going out gas branch pipe, and this is the process of air-flow participation work.
Claims (4)
1. moving iris type fluidized bed, comprise fluidized bed body, charging gear and discharge device, give depressed structure and air-out structure, it is characterized in that, the fluidized bed body top connects the air-out structure, the bottom is for having the fluid bed sieve plate of mesh, the below of fluid bed sieve plate is provided with several independent air chambers, and each air chamber all has the air inlet that independently connects coke oven flue waste gas; In fluidized bed body and be positioned at charging gear below be provided with the moveable partition board device, described moveable partition board device is chain that is supported by sprocket wheel and the one group of horizontal parallel dividing plate that is arranged on the chain lateral surface, and the moveable partition board device drives by being positioned at the outer power set of a fluid chamber; Its end away from charging gear of described chain is provided with the coarse granule feed opening; Bunker for collecting communicates with fine grained discharge area in the fluidized bed body, and this district is provided with fine grained classification downflow weir; The bottom of bunker for collecting and the bottom of described air chamber are equipped with the fine grained conveying worm.
2. according to claim 1 moving iris type fluidized bed, it is characterized in that the fluidized bed body chamber adopts the box structure of cuboid; The top, left side is the star charging gear; Bed body top is a plurality of air outlets, connects deduster after linking with the house steward that gives vent to anger; A plurality of independent air chambers are arranged by two row and corresponding respectively synchronous operated moveable partition board device separately; The bottom of homonymy air chamber all is connected on the fine grained conveying worm of this side.
3. according to claim 2 moving iris type fluidized bed, it is characterized in that, be provided with access door in bed body front portion, two bilateral symmetry of quantity; The visor that is positioned at the downflow weir below is equipped with in bed body both sides, and bed body upper back is and the outdoor venting that is communicated with.
4. according to claim 1 or 2 or 3 described moving iris type fluidized bed, it is characterized in that it is continuous firing that the bottom of bunker for collecting is provided with the fine grained conveying worm, the bottom of described air chamber is provided with fine grained conveying worm discontinuous operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200214720U CN201045558Y (en) | 2007-04-29 | 2007-04-29 | Mobile clapboard type fluid bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200214720U CN201045558Y (en) | 2007-04-29 | 2007-04-29 | Mobile clapboard type fluid bed |
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| CN201045558Y true CN201045558Y (en) | 2008-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2007200214720U Ceased CN201045558Y (en) | 2007-04-29 | 2007-04-29 | Mobile clapboard type fluid bed |
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| CN (1) | CN201045558Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102519223A (en) * | 2011-12-27 | 2012-06-27 | 中国科学院过程工程研究所 | Wide size distributed material dehumidifying pretreatment device |
| CN103261372A (en) * | 2010-12-22 | 2013-08-21 | 三菱重工业株式会社 | Method for gas treatment of coal |
| CN104119938A (en) * | 2013-04-26 | 2014-10-29 | 唐山德业节能环保科技有限公司 | Circulating fluidized bed coal moisture control technology |
| CN106367587A (en) * | 2016-09-21 | 2017-02-01 | 武汉科技大学 | Fluidized bed furnace used for one-step roasting of stone coal |
-
2007
- 2007-04-29 CN CNU2007200214720U patent/CN201045558Y/en not_active Ceased
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103261372A (en) * | 2010-12-22 | 2013-08-21 | 三菱重工业株式会社 | Method for gas treatment of coal |
| CN103261372B (en) * | 2010-12-22 | 2015-08-05 | 三菱重工业株式会社 | The gas processing method of coal |
| CN102519223A (en) * | 2011-12-27 | 2012-06-27 | 中国科学院过程工程研究所 | Wide size distributed material dehumidifying pretreatment device |
| CN104119938A (en) * | 2013-04-26 | 2014-10-29 | 唐山德业节能环保科技有限公司 | Circulating fluidized bed coal moisture control technology |
| CN106367587A (en) * | 2016-09-21 | 2017-02-01 | 武汉科技大学 | Fluidized bed furnace used for one-step roasting of stone coal |
| CN106367587B (en) * | 2016-09-21 | 2018-05-11 | 武汉科技大学 | A kind of fluidized bed furnace for one one-step baking of bone coal |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
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Decision date of declaring invalidation: 20101104 Decision number of declaring invalidation: 15469 Granted publication date: 20080409 |