CN102230717B - Body structure of boiling rotating fluidized bed - Google Patents
Body structure of boiling rotating fluidized bed Download PDFInfo
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- CN102230717B CN102230717B CN201110217301.6A CN201110217301A CN102230717B CN 102230717 B CN102230717 B CN 102230717B CN 201110217301 A CN201110217301 A CN 201110217301A CN 102230717 B CN102230717 B CN 102230717B
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Abstract
The invention discloses a body structure of a boiling rotating fluidized bed, which comprises an outer housing and an air distributor. Due to the coverage of the outer housing and the air distributor, an accommodation chamber of the fluidized bed is formed. The air distributor is like a groove and tilts from the feeding end of the bed body to the discharging end. The air distributor mainly comprises an air distributor bottom board configured in the middle and air distributor sideboards configured on the two sides. A blowing bottom hole communicated with a sectionalized wind box is configured on the air distributor bottom board, and a blowing side hole communicated with the sectionalized wind box is configured on the air distributor sideboard. The air distributor is tooth-shaped or wave-shaped, the blowing bottom hole is configured between the teeth of a tooth-shaped air distributor bottom board or at the wave trough of a wave-shaped air distributor bottom board, and the opening of the blowing bottom hole faces the discharging end of the bed body. The opening of the blowing side hole on the air distributor sideboard faces the air distributor bottom board. The invention has the advantages of simple body structure, smooth bed surface and optimized flow field and can greatly improve the boiling rotating fluidized status. In addition, the invention can reduce more energy consumption.
Description
Technical field
The present invention relates to a kind of building block of fluid bed, be specifically related to a kind of bed structure of fluid bed.
Background technology
Existing boiling cyclone fluidized bed bed structure is inverted trapezoidal shallow grooves shape (referring to CN101629775A, CN101709913A, the Chinese patent documents such as CN101708493A), by front receding, on the inclined-plane air distribution plate of bed body both sides, arrange the elbow gas ejector that many misarrangement row are put mutually, low concave plane, middle part is provided with the conehead gas ejector of usheing to seat that many misarrangement row are put mutually, after hot gas sprays on bed, this air-flow collects to centre and the generation eddy flow that rises in bed body two bottom sides, present boiling cyclone fluidized state, thereby reach the object that the solid particle humidity appropriateness on fluid bed is reduced.Yet, existing fluidized bed surface is owing to being provided with the injector of various protrusions, this causes fluid bed bed surface uneven, though can realize material bed fluidisation moves, but the moving resistance of boiling bed bottom is larger, and pocket has material stock dead angle, easily cause gas jetting hole to block, and the complex structure of whole fluidized bed body, preparation cost and maintenance cost are all very high.In order to realize better fluidizing fluid-bed allomeric function, improve fluidizing fluid-bed economy, applicability and operability, those skilled in the art are necessary existing fluidizing fluid-bed bed structure to be further improved.
Summary of the invention
Technical problem to be solved by this invention is to overcome the deficiencies in the prior art, provides that a kind of simple in structure, bed surface is level and smooth, flow field is optimized, make the boiling cyclone fluidized bed bed structure that boiling cyclone fluidized state is greatly improved, boiling bed bottom moving resistance reduces greatly and energy consumption further reduces.
For solving the problems of the technologies described above, the technical scheme that the present invention proposes is a kind of boiling cyclone fluidized bed bed structure, and it comprises shell body and air distribution plate, the coated fluid bed cavity volume that forms of described shell body and air distribution plate, described air distribution plate is groove shape and tilts to discharge end from the feed end of bed body, described air distribution plate is mainly comprised of the cloth wind side plate of middle cloth wind base plate and both sides, on described cloth wind base plate, offer the jet bottom outlet being connected with described boiling cyclone fluidized bed segmentation air compartment, on described cloth wind side plate, offer the jet side opening being connected with described boiling cyclone fluidized bed segmentation air compartment, described cloth wind base plate is dentation or wavy, described jet bottom outlet is opened in the between cog of dentation cloth wind base plate or the trough place of wavy cloth wind base plate and aperture towards the discharge end of bed body, the aperture of the jet side opening on described cloth wind side plate is towards described cloth wind base plate.
In above-mentioned boiling cyclone fluidized bed bed structure, described cloth wind side plate tilts from described shell body to cloth wind base plate, this cloth wind side plate must not be surface plate form, it can be any required shape, but cloth wind side plate preferably at right angles or inverted trapezoidal stepped, described jet side opening is opened in the vertical panel of described stepped cloth wind side plate, like this on the basis of simplified structure, the design of optimization bed body, can guarantee well that the aperture of jet side opening is towards described cloth wind base plate, to form gas cyclone.Jet side opening on described cloth wind side plate can be arranged in any mode of rule relatively, preferred arrangement is that the jet side opening (an arrangement cycle is a row longitudinally from bed body) that many rows longitudinally arrange along bed body is set on cloth wind side plate, and the jet side opening of adjacent two rows is separated by the plane surface on cloth wind side plate, toothed surfaces or a wave surface.According to this preferred arrangement, cloth wind side opening is set, the cloth wind that can make cloth wind side opening longitudinally and in bed height direction all keeps even at bed body, and makes the structure of cloth wind side plate compacter, processes conveniently, can form better gas cyclone.As the another kind of preferred arrangement of jet side opening, the jet side opening that many rows longitudinally arrange along bed body is set on described cloth wind side plate equally, but the jet side opening of adjacent two rows is the division surfaces that become by multiple combination in the plane surface on cloth wind side plate, toothed surfaces, wave surface, separates.In the multiple preferred structure of above-mentioned cloth wind side plate, the cloth wind side plate that specifically can root Ju boiling cyclone fluidized bed damping disposal ability size and fluidisation operating mode are selected optimum structure.
In above-mentioned boiling cyclone fluidized bed bed structure, on described cloth wind base plate, preferably include many rows along the jet bottom outlet (being a row along a bed horizontal arrangement cycle of body) of bed body lateral arrangement.Preferably, the cloth wind base plate of described jet bottom outlet top is provided with air flow guide.
In above-mentioned boiling cyclone fluidized bed bed structure, preferably, described shell body comprises Side fascia and lining, the coated shell cavity as fluidized bed body bellows that forms of described Side fascia and lining, described bellows comprise front bellows and the crosswind case being connected with described boiling cyclone fluidized bed segmentation air compartment, and described shell cavity comprises the front cavity that is used as described front bellows and the side cavity that is used as described crosswind case; Described lining comprises front lining and side lining, offers the front wall tuyere that is communicated with described front bellows and fluid bed cavity volume on described front lining, offers the side wall tuyere that is communicated with described crosswind case and fluid bed cavity volume on described side lining.Preferred, described front wall tuyere is positioned at the centre position of described front lining bottom, and described side wall tuyere comprises the upper side wall tuyere that is positioned at side lining top and the lower side wall tuyere that is positioned at side lining bottom.Described front wall tuyere and the setting of side wall tuyere arrange in order further to optimize gas cyclone state, and most gas is mainly to enter into fluid bed cavity volume from jet bottom outlet and jet side opening.The quantity of described crosswind case is not limited to one, can arrange a plurality of.Described lining inner side is preferably provided with dismountable abrasion resistant corrosion resistant interior lining panel.
Boiling cyclone fluidized bed marker method can be offered the interior wall discharge gate being connected with fluid bed hopper in middle part below rear lining, but as the further improvement to boiling cyclone fluidized bed bed structure, on the described cloth wind base plate of contiguous bed body discharge end, have the discharge gate being connected with boiling cyclone fluidized bed end drainage conduit.This kind of marker method not only simplified fluidized bed body structure, and can combine together with fluidized bed body structure of the present invention better, makes discharge more convenient, rapid, is convenient to later stage cleaning and safeguards, avoids occurring buildup.
Compared with prior art, the present invention has the following advantages: adopt the boiling cyclone fluidized bed of bed structure of the present invention, its bed surface is level and smooth, flow field is optimized, boiling cyclone fluidized state is greatly improved, boiling bed bottom moving resistance reduces greatly, and bed surface structure is more reasonable, without material stock dead angle area, can also make air feed pressure decreased, further reduce air feed energy consumption.Boiling cyclone fluidized bed bed structure of the present invention can improve and optimize damping and the drying effect of fluid bed greatly; Wet solid particle material can be realized fully, be dried equably in fluidized bed body structure of the present invention, and be easy to realize industrialized production, be specially adapted to coking industry " coal damping " field and coal industry " brown coal upgrading is dry " field, there is good economic benefit and social benefit.
Accompanying drawing explanation
Fig. 1 is the front view of fluidized bed body structure in the embodiment of the present invention 1.
Fig. 2 is the left view of fluidized bed body structure in the embodiment of the present invention 1.
Fig. 3 is the top view of fluidized bed body structure in the embodiment of the present invention 1.
Fig. 4 is the partial enlarged view at I place in Fig. 1.
Fig. 5 is the front view of fluidized bed body structure in the embodiment of the present invention 2.
Fig. 6 is the left view of fluidized bed body structure in the embodiment of the present invention 2.
Fig. 7 is the top view of fluidized bed body structure in the embodiment of the present invention 2.
Fig. 8 is the partial enlarged view at J place in Fig. 5.
Fig. 9 is the front view of fluidized bed body structure in the embodiment of the present invention 3.
Figure 10 is the left view of fluidized bed body structure in the embodiment of the present invention 3.
Figure 11 is the top view of fluidized bed body structure in the embodiment of the present invention 3.
Figure 12 is the partial enlarged view at K place in Fig. 9.
Marginal data:
1. shell body; 11. Side fascias; 12. linings; 121. front linings; 122. side linings; 123. front wall tuyeres; 124. side wall tuyeres; Side wall tuyere on 125.; 126. lower side wall tuyeres; 127. rear linings; 128. abrasion resistant corrosion resistant interior lining panels; 2. segmentation air compartment; 21. main air chambers; 22. airflow pressure adjustment doors; 23. crosswind chambers; 3. air distribution plate; 31. cloth wind base plates; 32. jet bottom outlets; 321. air flow guide; 33. cloth wind side plates; 34. jet side openings; 35. plane surfaces; 36. wave surfaces; 4. bellows; 41. front bellows; 42. crosswind casees; 5. end drainage conduit; 6. rear interior wall discharge gate; 7. hopper; 8. discharge gate.
The specific embodiment
Below in conjunction with specific embodiment and accompanying drawing, the present invention is further illustrated.
Embodiment 1:
An of the present invention boiling cyclone fluidized bed bed structure as shown in FIG. 1 to 3, it comprises shell body 1 and air distribution plate 3, the coated fluid bed cavity volume that forms of shell body 1 and air distribution plate 3; Air distribution plate 3 is groove shape and tilts to discharge end from the feed end of bed body, air distribution plate 3 is mainly comprised of the cloth wind side plate 33 of middle cloth wind base plate 31 and both sides, on cloth wind base plate 31, offer the jet bottom outlet 32 being connected with boiling cyclone fluidized bed segmentation air compartment 2 (boiling cyclone fluidized bed segmentation air compartment generally comprises the members such as main air chamber 21, crosswind chamber 23 and airflow pressure adjustment doors 22), on cloth wind side plate 33, offer the jet side opening 34 being connected with boiling cyclone fluidized bed segmentation air compartment 2; Cloth wind base plate 31 is dentation, and jet bottom outlet 32 is opened in the between cog of dentation cloth wind base plate 31 and aperture towards discharge end, and the aperture of the jet side opening 34 on cloth wind side plate 33 is towards cloth wind base plate 31.
In the present embodiment, cloth wind side plate 33 tilts from shell body 1 to cloth wind base plate 31 and is stepped, and jet side opening 34 is opened on the perpendicular of stepped cloth wind side plate 33.On cloth wind side plate 33, include the jet side opening 34 that many rows edge bed body is longitudinally arranged, and the jet side opening 34 of adjacent two rows is separated with the division surface that a plane surface 35 that is positioned at fluidized bed body back segment is combined into by being positioned at a wave surface 36 of fluidized bed body leading portion.
In the present embodiment, on cloth wind base plate 31, include many rows along the jet bottom outlet 32 of bed body lateral arrangement.As shown in Figure 4, cloth wind base plate 31 is dentation, and jet bottom outlet 32 is opened in the between cog of cloth wind base plate 31 of dentation and aperture towards discharge end, and the aperture of the jet side opening 34 on cloth wind side plate 33 is towards cloth wind base plate 31; On the dentation cloth wind base plate 31 of jet bottom outlet 32 tops, be also provided with air flow guide 321.In the present embodiment, air flow guide 321 interval one rows on cloth wind base plate 31 arrange.
In the present embodiment, shell body 1 comprises Side fascia 11 and lining 12, the inner side of lining 12 is provided with dismountable abrasion resistant corrosion resistant interior lining panel 128, the coated shell cavity as fluidized bed body bellows 4 that forms of Side fascia 11 and lining 12, bellows 4 comprise front bellows 41 and the crosswind case 42 being connected with boiling cyclone fluidized bed segmentation air compartment 2, and shell cavity comprises the front cavity that is used as front bellows 41 and the side cavity that is used as crosswind case 42; Lining 12 comprises front lining 121, side lining 122 and rear lining 127, on front lining 121, offer the front wall tuyere 123 that is communicated with front bellows 41 and fluid bed cavity volume, on side lining 122, offer the side wall tuyere 124 that is communicated with crosswind case 42 and fluid bed cavity volume.Front wall tuyere 123 is positioned at the centre position of front lining 121 bottoms, and side wall tuyere 124 comprises the upper side wall tuyere 125 that is positioned at side lining 122 tops and the lower side wall tuyere 126 that is positioned at side lining 122 bottoms.
In the present embodiment, the quantity of segmentation air compartment 2, crosswind case 42 all can arrange a plurality of.Crosswind case 42 bottoms are connected with segmentation air compartment 2 by airflow pressure adjustment doors 22.
In the present embodiment, middle part, the below of rear lining 127 offers the rear interior wall discharge gate 6 being connected with the hopper 7 of fluid bed, and the fluid bed of the present embodiment is to carry out discharge by rear interior wall discharge gate 6, and the quantity of rear interior wall discharge gate 6 is not limited to one.
Embodiment 2:
A kind of of the present invention boiling cyclone fluidized bed bed structure as shown in Fig. 5～Fig. 8, the fluidized bed body structure of itself and embodiment 1 is basic identical, the difference of itself and embodiment 1 is only following 2 points: the jet side opening 34 of the adjacent two rows that 1) arrange on cloth wind side plate 33 is all to separate by the wave surface 36 on cloth wind side plate 33, and the member that all the other are all and connected mode are identical with embodiment 1; 2) as shown in Figure 8, on the cloth wind base plate 31 of each row's of the present embodiment jet bottom outlet 32 tops, all correspondence is provided with air flow guide (321).
Embodiment 3:
A kind of of the present invention boiling cyclone fluidized bed bed structure as shown in Fig. 9～Figure 12, the fluidized bed body structure of itself and embodiment 1 is basic identical, is only following 3 points with the difference of embodiment 1: the jet side opening 34 of the adjacent two rows that 1) arrange on cloth wind side plate 33 is all to separate by the plane surface 35 on cloth wind side plate 33; 2) rear interior wall discharge gate 6 is not offered at middle part, the below of the lining 127 of the present embodiment, it is to offer a discharge gate 8 being connected with the end drainage conduit 5 of fluid bed at longitudinal exhaust end of cloth wind base plate 31, and the fluid bed of the present embodiment is to carry out discharge by discharge gate 8; In in addition concrete embodiment, rear interior wall discharge gate 6 in embodiment 1 and the discharge gate 8 in the present embodiment even can be set simultaneously; 3) as shown in figure 12, on the cloth wind base plate 31 of jet bottom outlet 32 tops of the present embodiment, air flow guide 321 is not set.
In the various embodiments described above, the application mode of fluidized bed body structure in boiling cyclone fluidized bed single unit system is: the shell body 1 of this bed structure is generally rectangular-shaped, its top is generally communicated with boiling cyclone fluidized bed upper shell with flange, and bottom is communicated with the blast pipe of boiling cyclone fluidized bed each segmentation air compartment 2; Segmentation air compartment 2 is generally positioned at boiling cyclone fluidized bed bed body bottom, and each segmentation air compartment can be separated into main air chamber, middle part and crosswind chamber, both sides, and airflow pressure adjustment doors 22 is established in bottom, crosswind chamber, and the quantity of segmentation air compartment is not limited to one, can arrange a plurality of; Each segmentation air compartment 2 bottom is communicated with air inlet pipe, and the independent adjustment doors on blast pipe of airflow pressure of each segmentation air compartment 2 regulates.The various embodiments described above have only provided one section of boiling cyclone fluidized bed bed structure, the boiling cyclone fluidized bed bed structure in multistage the present invention can be communicated with from beginning to end to the boiling cyclone fluidized bed bed body that forms large-scale damping machine in practice.
The operation principle of the boiling cyclone fluidized bed bed structure of the present embodiment is: the air-flow major part of sending into behind segmentation air compartment 2 and main air chamber 21 enters fluid bed cavity volume through cloth wind base plate 31 and by jet bottom outlet 32 ejections, separately there are front wall tuyere 123 ejections that a small amount of gas is arranged by front bellows 41 places to enter into fluid bed cavity volume, be subject to jet bottom outlet 32 apertures towards the effect of material discharging end structure, mobile to discharge end by feed end through the air-flow of cloth wind base plate 31, the air-flow of sending into from segmentation air compartment 2 and crosswind chamber 23 enters in crosswind case 42 after airflow pressure adjustment doors 22, then most of air-flow enters fluid bed cavity volume through cloth wind side plate 33 by jet side opening 34 ejections, separately there is a small amount of gas by upper side wall tuyere 125 and 126 ejections of lower side wall tuyere at crosswind case 42 places, to enter fluid bed cavity volume, because both sides cloth wind side plate 33 is arranged symmetrically with, the air-flow of both sides ejections after meeting above cloth wind base plate 31 on lifting, be formed on bottom position to intermediary movements, middle upper part position is to the gas cyclone of the contrary circular trace of two rotation directions of two lateral movements, finally, through the air-flow of cloth wind base plate 31 and the gas cyclone that synthesizes the helix form that two rotation directions are contrary through the air-flow of cloth wind side plate 33, the feed end by fluidized bed body moves to discharge end.
Claims (7)
1. a boiling cyclone fluidized bed bed structure, it comprises shell body (1) and air distribution plate (3), the coated fluid bed cavity volume that forms of described shell body (1) and air distribution plate (3), described air distribution plate (3) is groove shape and tilts to discharge end from the feed end of bed body, described air distribution plate (3) is mainly comprised of the cloth wind side plate (33) of middle cloth wind base plate (31) and both sides, on described cloth wind base plate (31), offer the jet bottom outlet (32) being connected with described boiling cyclone fluidized bed segmentation air compartment (2), on described cloth wind side plate (33), offer the jet side opening (34) being connected with described boiling cyclone fluidized bed segmentation air compartment (2), it is characterized in that: described cloth wind base plate (31) is dentation or wavy, described jet bottom outlet (32) is opened in the between cog of dentation cloth wind base plate (31) or the trough place of wavy cloth wind base plate (31) and aperture towards the discharge end of bed body, the aperture of the jet side opening (34) on described cloth wind side plate (33) is towards described cloth wind base plate (31),
Described cloth wind side plate (33) tilts from described shell body (1) to cloth wind base plate (31) and is stepped, and described jet side opening (34) is opened in the vertical panel of described stepped cloth wind side plate (33);
On described cloth wind side plate (33), comprise the jet side opening (34) that many rows longitudinally arrange along bed body, and the division surface that the jet side opening (34) of adjacent two rows is combined into by the plane surface (35) on cloth wind side plate (33), a wave surface (36) or plane surface (35) and wave surface (36) is separated.
2. boiling cyclone fluidized bed bed structure according to claim 1, is characterized in that, comprises that many rows are along the jet bottom outlet (32) of bed body lateral arrangement on described cloth wind base plate (31); Described segmentation air compartment (2) comprises main air chamber (21) and crosswind chamber (23); The air-flow major part of sending into behind segmentation air compartment (2) and main air chamber (21) enters fluid bed cavity volume through cloth wind base plate (31) and by jet bottom outlet (32) ejection.
3. boiling cyclone fluidized bed bed structure according to claim 2, is characterized in that, the cloth wind base plate (31) of described jet bottom outlet (32) top is provided with air flow guide (321).
4. boiling cyclone fluidized bed bed structure according to claim 3, it is characterized in that, described shell body (1) comprises Side fascia (11) and lining (12), the coated shell cavity as fluidized bed body bellows (4) that forms of described Side fascia (11) and lining (12), described bellows (4) comprise front bellows (41) and the crosswind case (42) being connected with described boiling cyclone fluidized bed segmentation air compartment (2), and described shell cavity comprises the front cavity that is used as described front bellows (41) and the side cavity that is used as described crosswind case (42); Described lining (12) comprises front lining (121) and side lining (122), on described front lining (121), offer the front wall tuyere (123) that is communicated with described front bellows (41) and fluid bed cavity volume, on described side lining (122), offer the side wall tuyere (124) that is communicated with described crosswind case (42) and fluid bed cavity volume.
5. boiling cyclone fluidized bed bed structure according to claim 4, it is characterized in that, described front wall tuyere (123) is positioned at the centre position of described front lining (121) bottom, and described side wall tuyere (124) comprises the lower side wall tuyere (126) that is positioned at the upper side wall tuyere (125) on side lining (122) top and is positioned at side lining (122) bottom.
6. boiling cyclone fluidized bed bed structure according to claim 1 and 2, it is characterized in that, described shell body (1) comprises Side fascia (11) and lining (12), the coated shell cavity as fluidized bed body bellows (4) that forms of described Side fascia (11) and lining (12), described bellows (4) comprise front bellows (41) and the crosswind case (42) being connected with described boiling cyclone fluidized bed segmentation air compartment (2), and described shell cavity comprises the front cavity that is used as described front bellows (41) and the side cavity that is used as described crosswind case (42); Described lining (12) comprises front lining (121) and side lining (122), on described front lining (121), offer the front wall tuyere (123) that is communicated with described front bellows (41) and fluid bed cavity volume, on described side lining (122), offer the side wall tuyere (124) that is communicated with described crosswind case (42) and fluid bed cavity volume; Described lining (12) inner side is provided with dismountable abrasion resistant corrosion resistant interior lining panel (128).
7. according to the boiling cyclone fluidized bed bed structure described in any one in claim 1～5, it is characterized in that: on the described cloth wind base plate (31) of contiguous bed body discharge end, have the discharge gate (8) being connected with boiling cyclone fluidized bed end drainage conduit (5); Segmentation air compartment (2) comprises main air chamber (21), crosswind chamber (23) and airflow pressure adjustment doors (22); Each segmentation air compartment (2) is separated into main air chamber (21), middle part and crosswind chamber, both sides (23), and airflow pressure adjustment doors (22) is established in bottom, crosswind chamber (23).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110217301.6A CN102230717B (en) | 2011-08-01 | 2011-08-01 | Body structure of boiling rotating fluidized bed |
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| CN201110217301.6A CN102230717B (en) | 2011-08-01 | 2011-08-01 | Body structure of boiling rotating fluidized bed |
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| CN102230717A CN102230717A (en) | 2011-11-02 |
| CN102230717B true CN102230717B (en) | 2014-10-29 |
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| CN102538433B (en) * | 2012-03-13 | 2013-11-06 | 武汉钢铁(集团)公司 | Double-layer air distribution method for fluidized bed dryer and equipment |
| CN102659478B (en) * | 2012-05-04 | 2014-03-19 | 湖北富邦科技股份有限公司 | Continuous enveloping fluidized bed for slow/control-release fertilizers |
| CN104101179B (en) * | 2013-04-10 | 2016-01-06 | 长沙通发高新技术开发有限公司 | Selection by winnowing and dry fluidizing fluid-bed bed structure can be carried out simultaneously |
| CN103571513B (en) * | 2013-10-15 | 2016-12-07 | 长沙通发高新技术开发有限公司 | The process system of UTILIZATION OF VESIDUAL HEAT IN is carried out in coking coal preparation technique |
| CN103725302B (en) * | 2013-12-23 | 2015-05-20 | 青岛利物浦环保科技有限公司 | Coal humidifying and whirling machine of compound fluidized bed and novel humidifying technology |
| CN105222527B (en) * | 2015-10-15 | 2017-04-12 | 聊城鲁西聚碳酸酯有限公司 | Novel drying device for fluidized bed |
| CN106835360B (en) * | 2016-12-21 | 2019-04-05 | 湖南顶立科技有限公司 | Ventilation terminal and pre-oxidation furnace hot air circulating system |
| CN108408412B (en) * | 2018-01-31 | 2019-07-05 | 河海大学 | The active washboard-type fluidized bed pipeline and its application method transported for powder body material |
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