CN202066304U - Movable hot air distribution plate type fluidized bed dryer - Google Patents
Movable hot air distribution plate type fluidized bed dryer Download PDFInfo
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- CN202066304U CN202066304U CN2011201370277U CN201120137027U CN202066304U CN 202066304 U CN202066304 U CN 202066304U CN 2011201370277 U CN2011201370277 U CN 2011201370277U CN 201120137027 U CN201120137027 U CN 201120137027U CN 202066304 U CN202066304 U CN 202066304U
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- hot blast
- distribution grid
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- hot air
- fluidized bed
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Abstract
The utility model discloses a movable hot air distribution plate type fluidized bed dryer, belonging to the technical field of drying equipment and engineering. The movable hot air distribution plate type fluidized bed dryer is characterized by comprising a box body, a hot air distribution chamber, a movable hot air distribution plate component, a movable weir plate component, a material seal hot air sealing structure, an air knife, a hot air inlet, a waste gas outlet, a wet material inlet, a product outlet and the like. A method for drying by using the drying equipment comprises the following steps of: adding a wet material onto a hot air distribution plate through a wet material inlet; drying fine particles with hot air in a fluidized way in the movable hot air distribution plate type fluidized bed dryer; drying coarse particles while moving along with the movable hot air distribution plate; discharging dried qualified products from the product outlet; and exhaust waste gas from the waste gas outlet. The utility model has the beneficial effects that: the movable hot air distribution plate type fluidized bed dryer has a simple structure, small floor area, narrow material residence time distribution, uniform product water content and safe and convenient operating process, and is easy to manufacture.
Description
Technical field
The utility model belongs to drying equipment and field of engineering technology, relates to the drying equipment of inflammable and explosive materials such as a kind of coking coal, brown coal and oil shale.
Background technology
The drying means of inflammable and explosive materials such as coking coal, brown coal and oil shale has a variety of.Press the mode that drying medium contacts with wet stock, can be divided into the dry and dry two big classes of indirect heating type of direct-heating type.Because coking coal, brown coal and oil shale are not afraid of smoke pollution, not with flue gas generation chemical reaction, so industrial the most frequently used be to be the direct-heating type comvection dryer of drying medium with the flue gas, as pneumatic conveyer dryer, revolving drier, rotary pipe type drier and fluidized bed dryer etc.Pneumatic conveyer dryer is simple in structure, and treating capacity is big, and drying time is short, but SR is big, and the dry products that obtain low moisture (particularly below 5%) is relatively more difficult.Revolving drier and rotary pipe type drier, operating flexibility is big, and production capacity is big, but equipment volume is big, the one-time investment height.Fluidized bed dryer is simple in structure, and cost is low, and is easy to maintenance, and treating capacity is big, but requires the wet stock even particle size distribution.As everyone knows, after coking coal, brown coal and oil shale pulverizing, the particle size distribution that obtains, bulky grain will occur and also not be fluidized if adopt common fluidized bed dryer to carry out drying than broad, and granule has been entrained with outside the bed by air-flow; Perhaps the granule fluidisation and dead bed or hot blast distribution grid sieve pore blockade problem appear in the bulky grain transfixion.At present, the a variety of fluidized bed drying equipments that are used for the coal charge drying have been developed, for example, the Chinese patent application name is called " multi-chamber type fluidized bed-carrying classifier " (CN1153633C), " drying means of coal and drying device " (CN1120872C), " moving iris type fluidized bed " (CN101063059A), multistage combined fluidizing-moving bed drier and drying means thereof (CN1100445674C), a kind of fluidized bed air separating damping machine and selection by winnowing damping new technology (CN101786080A) etc., though above-mentioned these fluidized bed dryers all have dry technology advantage separately, but the hot blast distribution grid of these drying equipments all is actionless, the local stagnant area that all has material in the drying equipment in various degree, because coking coal, brown coal and oil shale belong to inflammable and explosive material, it is long to occur material Local Residence Time in drying equipment like this, has potential safety hazards such as burning and blast.
Summary of the invention
The purpose of this utility model is to overcome the defective that above-mentioned prior art exists, a kind of mobile hot blast with self-cleaning function board-like fluidized bed dryer that distributes is provided, with the wet stock particle of realizing wide size distribution fluidisation or move equably in this drying equipment, safe operation process ground is carried out.
The technical solution of the utility model is as follows:
A kind of mobile hot blast board-like fluidized bed dryer that distributes comprises casing, hot blast distributing chamber, mobile hot blast distribution plate assembly, mobile weir plate assembly, material envelope formula hot blast hermetically-sealed construction, air knife, hot-wind inlet, waste gas outlet, wet stock inlet and products export.
Hot blast distributing chamber comprises side plate I, side plate II, helical feed removal device, fine powder outlet, helical feed removal device drive unit, casing and hot blast distribution grid; Be Welding Structure between side plate I wherein, side plate II, helical feed removal device and the casing.
Mobile hot blast distribution plate assembly comprises hot blast distribution grid, driving wheel, driven pulley, regulating wheel, roller chain and mobile hot blast distribution grid drive unit; The hot blast distribution grid is linked together by the little hot blast distribution grid of polylith and constitutes, and has oblique circular hole road on the little hot blast distribution grid, with bolt little hot blast distribution grid and roller chain is tightened together.Oblique circular hole road on the described little hot blast distribution grid, channel diameter is 1～4mm, and percent opening is 2%～15%, and the angle of inclined channel and vertical direction is 0～65 °.
Material envelope formula hot blast hermetically-sealed construction comprises casing, external seal riser, sealing transverse slat, swash plate, hydrodynamic reciprocating sealing riser, interior sealing riser and hot blast distribution grid; Adopt Welding Structure between casing, external seal riser, sealing transverse slat, swash plate and the interior sealing riser, hot blast distribution grid and hydrodynamic reciprocating sealing riser are tightened together with bolt.
Mobile weir plate assembly comprises weir plate, head sprocket wheel, tail sprocket, chip conduction chain and mobile weir plate drive unit, with bolt weir plate and conduction chain is tightened together; Mobile weir plate height is 100～400mm, and the distance between weir plate and the weir plate is 100～300mm, and the gap between weir plate and the casing is 10～15mm.
Gap between the end face of hydrodynamic reciprocating sealing riser and the sealing transverse slat is 10～20mm, gap between the end face of external seal riser and interior sealing riser and the hot blast distribution grid is 10～20mm, gap between external seal riser and the hydrodynamic reciprocating sealing riser is 10～20mm, gap between hydrodynamic reciprocating sealing riser and the interior sealing riser is 10～20mm, the end face of hot blast distribution grid and the gap between the casing are 10～20mm, and the angle between swash plate and the casing is less than 30 °.
Air knife is the stainless steel tube of diameter 30～100mm, and it faces and has 3～5 row's circular hole roads on the tube wall of hot blast distribution grid direction, and channel diameter is 2～6mm, and pitch of holes is 8～15mm, and the distance between the adjacent 2 round roads is 6～10mm.
The horizontal motion speed of mobile hot blast distribution grid is 20～300mm/s; The horizontal motion speed of mobile weir plate is 20～300mm/s; Gas-operated pressure in the air knife pipe is 0.2～0.6MPa.
Drying means that board-like fluidized bed dryer carries out is to adopt above-mentioned mobile hot blast to distribute: wet stock is joined on the hot blast distribution grid through the wet stock inlet, in mobile hot blast distributes board-like fluid bed, by hot blast fine grained is carried out fluidized drying, and coarse granule with mobile hot blast distribution grid while moving drying, dry good qualified products are discharged by products export, and waste gas is discharged by waste gas outlet.
Effect of the present utility model and benefit are: device structure is simple, floor space is little, and the residence time of material narrowly distributing does not exist material to be trapped in the problem that row does not come out in the drying equipment for a long time, prevented the susceptible to plugging phenomenon in sieve plate duct effectively, the product water content is even.The granule materials of having realized wide size distribution fluidisation or move equably in mobile hot blast distributes board-like fluidized bed dryer makes safe operation process convenient.
Description of drawings
Fig. 1 is the distribute structural representation of board-like fluidized bed dryer of mobile hot blast.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the enlarged drawing of local I among Fig. 2.
Fig. 4 is the enlarged drawing of local I I among Fig. 2.
Fig. 5 is mobile hot blast distribution plate assembly and hot blast distributing chamber structural representation.
Fig. 6 is the vertical view of Fig. 5.
Fig. 7 is mobile weir plate modular construction schematic diagram.
Fig. 8 is the vertical view of Fig. 7.
Among the figure: 1 wet stock inlet; 2 casings; 3 waste gas outlets; 4 move the weir plate assembly; 5 air knives; 6 products exports; 7 hot-wind inlets; 8 hot blast distributing chamber; 9 move the hot blast distribution plate assembly; The outlet of 10 fine powders; 11 helical feed removal devices; 12 move hot blast distribution grid drive unit; 13 material envelope formula hot blast hermetically-sealed construction; 14 move the weir plate drive unit; 15 helical feed removal device drive units; 16 external seal risers; 17 sealing transverse slats; 18 swash plates; 19 hydrodynamic reciprocating sealing risers; Sealing riser in 20; 21 hot blast distribution grids; 22 driving wheels; 23 regulating wheels; 24 roller chains; 25 driven pulleys; 26 side plate I; 27 side plate II; 28 little hot blast distribution grids; 29 head sprocket wheels; 30 weir plates; 31 chip conduction chains; 32 tail sprockets.
The specific embodiment
Be described in detail the specific embodiment of the present utility model below in conjunction with technical scheme and accompanying drawing.
As Fig. 1～shown in Figure 8, mobile hot blast distribution plate assembly 9 comprises hot blast distribution grid 21, driving wheel 22, driven pulley 25, regulating wheel 23, roller chain 24 and mobile hot blast distribution grid drive unit 12; Hot blast distribution grid 21 is linked together by the little hot blast distribution grid 28 of polylith and constitutes, have oblique circular hole road on the little hot blast distribution grid 28, channel diameter is 1～4mm, percent opening is 2%～15%, the angle of inclined channel and vertical direction is 0～65 °, with bolt little hot blast distribution grid 28 is tightened together with roller chain 24; The horizontal motion speed of mobile hot blast distribution grid is 20～300mm/s, by regulating its movement velocity, to guarantee that bulky grain has enough drying residencing times in fluid bed, simultaneously can also avoid material overstand in drier, hot-spot occur and cause potential safety hazard such as catch fire.Hot blast distributing chamber 8 comprises side plate I 26, side plate II 27, helical feed removal device 11, fine powder outlet 10, helical feed removal device drive unit 15, casing 2 and hot blast distribution grid 21; Be Welding Structure between side plate I 26 wherein, side plate II 27, helical feed removal device 11 and the casing 2; In the operating process, adopt helical feed removal device 11 to discharge through fine powder outlet 10, to avoid powder material overstand and problem such as occur catching fire in hot blast distributing chamber 8 from the powder material that hot blast distribution grid 21 leak down.Mobile weir plate assembly 4 comprises weir plate 30, head sprocket wheel 29, tail sprocket 32, chip conduction chain 31 and mobile weir plate drive unit 14; The height of weir plate 30 is 100～400mm, and the distance between weir plate and the weir plate is 100～300mm, and the gap between weir plate 30 and the casing 2 is 10～15mm, with bolt weir plate 30 and conduction chain 31 is tightened together; The horizontal motion speed of mobile weir plate is 20～300mm/s, by regulating its movement velocity, regulates the fluidized-bed layer height, to guarantee that fine granular materials has enough fluidized drying time of staying in fluid bed.Material envelope formula hot blast hermetically-sealed construction 13 comprises casing 2, external seal riser 16, sealing transverse slat 17, swash plate 18, hydrodynamic reciprocating sealing riser 19, interior sealing riser 20 and hot blast distribution grid 21; Gap between the end face of hydrodynamic reciprocating sealing riser 19 and the sealing transverse slat 17 is 10～20mm, the end face and the gap between the hot blast distribution grid 21 of external seal riser 16 and Mi Nei envelope riser 20 are 10～20mm, gap between external seal riser 16 and the hydrodynamic reciprocating sealing riser 19 is 10～20mm, gap between hydrodynamic reciprocating sealing riser 19 and the interior sealing riser 20 is 10～20mm, gap between the end face of hot blast distribution grid 21 and the casing 2 is 10～20mm, and the angle between swash plate 18 and the casing 2 is less than 30 °; Adopt Welding Structure between casing 2, external seal riser 16, sealing transverse slat 17, swash plate 18 and the interior sealing riser 20, hot blast distribution grid 21 and hydrodynamic reciprocating sealing riser 19 are tightened together with bolt; In the operating process, pass the fluid bed granulate bed equably, prevent that hot blast from directly passing through from the end face of hot blast distribution grid 21 and the slit between the casing 2, rely on this material to seal to be full of material in the formula hot blast hermetically-sealed construction 13 and realize for guaranteeing hot blast.Air knife 5 is the stainless steel tube of diameter 30～100mm, and it faces and has 3～5 row's circular hole roads on the tube wall of hot blast distribution grid direction, and channel diameter is 2～6mm, and pitch of holes is 8～15mm, and the distance between the adjacent 2 round roads is 6～10mm; Gas-operated pressure is 0.2～0.6MPa in the pipe of air knife 5, remains in material in hot blast distribution grid 21 ducts with removing, avoids occurring the gas duct problem that material stops up hot blast distribution grid 21.
As Fig. 1～shown in Figure 4, wet stock is joined on the hot blast distribution grid 21 through wet stock inlet 1, in mobile hot blast distributes board-like fluid bed, by hot blast fine grained is carried out fluidized drying, and coarse granule with mobile hot blast distribution grid 9 while moving drying, dry good qualified products are discharged by products export 6, and waste gas is discharged by waste gas outlet 3.
Claims (6)
1. a mobile hot blast board-like fluidized bed dryer that distributes, comprise casing, hot blast distributing chamber, mobile hot blast distribution plate assembly, mobile weir plate assembly, material envelope formula hot blast hermetically-sealed construction, air knife, hot-wind inlet, waste gas outlet, wet stock inlet and products export, it is characterized in that:
(1) hot blast distributing chamber comprises side plate I, side plate II, helical feed removal device, fine powder outlet, helical feed removal device drive unit, casing and hot blast distribution grid; Be Welding Structure between side plate I wherein, side plate II, helical feed removal device and the casing;
(2) mobile hot blast distribution plate assembly comprises hot blast distribution grid, driving wheel, driven pulley, regulating wheel, roller chain and mobile hot blast distribution grid drive unit; The hot blast distribution grid is linked together by the little hot blast distribution grid of polylith and constitutes, and has oblique circular hole road on the little hot blast distribution grid, with bolt little hot blast distribution grid and roller chain is tightened together;
(3) mobile weir plate assembly comprises weir plate, head sprocket wheel, tail sprocket, chip conduction chain and mobile weir plate drive unit, with bolt weir plate and conduction chain is tightened together;
(4) material envelope formula hot blast hermetically-sealed construction comprises casing, external seal riser, sealing transverse slat, swash plate, hydrodynamic reciprocating sealing riser, interior sealing riser and hot blast distribution grid; Adopt Welding Structure between casing, external seal riser, sealing transverse slat, swash plate and the interior sealing riser, hot blast distribution grid and hydrodynamic reciprocating sealing riser are tightened together with bolt.
2. a kind of mobile hot blast according to claim 1 board-like fluidized bed dryer that distributes, it is characterized in that: oblique circular hole road on the described little hot blast distribution grid, channel diameter is 1～4mm, and percent opening is 2%～15%, and the angle of inclined channel and vertical direction is 0～65 °.
3. a kind of mobile hot blast according to claim 1 board-like fluidized bed dryer that distributes, it is characterized in that: described mobile weir plate height is 100～400mm, distance between weir plate and the weir plate is 100～300mm, and the gap between weir plate and the casing is 10～15mm.
4. a kind of mobile hot blast according to claim 1 board-like fluidized bed dryer that distributes, it is characterized in that: the gap between the end face of hydrodynamic reciprocating sealing riser and the sealing transverse slat is 10～20mm, gap between the end face of external seal riser and interior sealing riser and the hot blast distribution grid is 10～20mm, gap between external seal riser and the hydrodynamic reciprocating sealing riser is 10～20mm, gap between hydrodynamic reciprocating sealing riser and the interior sealing riser is 10～20mm, the end face of hot blast distribution grid and the gap between the casing are 10～20mm, and the angle between swash plate and the casing is less than 30 °.
5. according to claim 1,2, the 3 or 4 described a kind of mobile hot blasts board-like fluidized bed dryer that distributes, it is characterized in that: air knife is the stainless steel tube of diameter 30～100mm, it faces and has 3～5 row's circular hole roads on the tube wall of hot blast distribution grid direction, channel diameter is 2～6mm, pitch of holes is 8～15mm, and the distance between the adjacent 2 round roads is 6～10mm.
6. a kind of mobile hot blast according to claim 1 board-like fluidized bed dryer that distributes, it is characterized in that: the horizontal motion speed of mobile hot blast distribution grid is 20～300mm/s; The horizontal motion speed of mobile weir plate is 20～300mm/s; Gas-operated pressure in the air knife pipe is 0.2～0.6MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201370277U CN202066304U (en) | 2011-05-04 | 2011-05-04 | Movable hot air distribution plate type fluidized bed dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201370277U CN202066304U (en) | 2011-05-04 | 2011-05-04 | Movable hot air distribution plate type fluidized bed dryer |
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| Publication Number | Publication Date |
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| CN202066304U true CN202066304U (en) | 2011-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201370277U Expired - Lifetime CN202066304U (en) | 2011-05-04 | 2011-05-04 | Movable hot air distribution plate type fluidized bed dryer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252501A (en) * | 2011-05-04 | 2011-11-23 | 大连理工大学 | Mobile hot air distribution plate type fluidized bed dryer |
| 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 |
| CN102997634A (en) * | 2012-12-18 | 2013-03-27 | 清华大学 | Moving bed brown coal drying method and device |
| CN115235190A (en) * | 2022-08-18 | 2022-10-25 | 扬州日发生物设备有限公司 | Energy-saving continuous fluidized bed capable of prolonging retention time and achieving uniform drying |
-
2011
- 2011-05-04 CN CN2011201370277U patent/CN202066304U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252501A (en) * | 2011-05-04 | 2011-11-23 | 大连理工大学 | Mobile hot air distribution plate type fluidized bed dryer |
| CN102252501B (en) * | 2011-05-04 | 2013-10-16 | 大连理工大学 | Mobile hot air distribution plate type fluidized bed dryer |
| 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 |
| CN102997634A (en) * | 2012-12-18 | 2013-03-27 | 清华大学 | Moving bed brown coal drying method and device |
| CN102997634B (en) * | 2012-12-18 | 2015-04-15 | 清华大学 | Moving bed brown coal drying method and device |
| CN115235190A (en) * | 2022-08-18 | 2022-10-25 | 扬州日发生物设备有限公司 | Energy-saving continuous fluidized bed capable of prolonging retention time and achieving uniform drying |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20111207 Effective date of abandoning: 20131016 |
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| RGAV | Abandon patent right to avoid regrant |