CN201246942Y - Rotary type drying machine suitable for high moisture material - Google Patents
Rotary type drying machine suitable for high moisture material Download PDFInfo
- Publication number
- CN201246942Y CN201246942Y CNU200820132830XU CN200820132830U CN201246942Y CN 201246942 Y CN201246942 Y CN 201246942Y CN U200820132830X U CNU200820132830X U CN U200820132830XU CN 200820132830 U CN200820132830 U CN 200820132830U CN 201246942 Y CN201246942 Y CN 201246942Y
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- lifting blade
- cylindrical shell
- barrel
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- bus
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Abstract
The utility model relates to a rotary drying machine which is suitable for high-moisture materials, which comprises a barrel, a driving device and a riding wheel device, wherein a preheating area, a drying area and a kilning area are divided in the inner cavity of the barrel from head to tail in turn. A plurality of throwing plates I which are backwards tilted with a bus of the barrel, throwing plates II which are vertical to the bus of the barrel, throwing plates III which are forwards titled with the bus of the barrel and throwing plates IV which are backwards titled with the bus of the barrel are arranged on the inner walls of the preheating area, the front area and the rear area of the kilning area and the drying area in the barrel. A plurality of fylfot throwing plates with crossed-shaped supporting stands are mounted in the drying area in the barrel, and a plurality of arch-breaking chains whose two ends are fixed with the inner wall of the barrel are mounted on the inner walls of the barrel. The rotary drying machine can directly dry high-moisture materials, effectively reduces equipment investment and occupied area, shortens treatment period, avoids secondary pollution and lowers energy consumption and operation cost, water-content coefficients of materials can be lowered to 3-5% after drying, and the drying effect is excellent.
Description
Technical field
The utility model relates to a kind of drying plant that is used for water-containing materials, particularly a kind of rotary dryer that is applicable to oven dry such as industry high-moisture raw material such as building materials, chemical industry, papermaking and solid waste.
Background technology
At present, in industries such as building materials, chemical industry, papermaking, be used for raw material and discarded object drying plant and mainly contain monotubular rotary dryer, bitubular rotary dryer, three rotary dryers and tower drier.Existing drying plant has comparatively strict requirement to the initial moisture of material, as the monotubular rotary dryer, when the initial moisture of waiting to dry material greater than 25% the time, equipment just is difficult to it is dried operation, even can't move; Tower drier, bitubular rotary drying machine, three rotary drying machines are to the strictness more of the initial moisture requirement of material, having certain viscosity to wait to dry the initial moisture of material generally speaking must not be greater than 15%, inviscid graininess or powdery wait to dry the initial moisture of material must not be greater than 20%, otherwise the oven dry operation can't be carried out.Therefore, when adopting existing drying plant to dry operation to containing the higher material of moisture, needing to carry out press filtration or centrifugation earlier before the oven dry operation handles, remove portion of water, carry out airing then and handle, when waiting that the moisture content of drying material reaches the desired initial water timesharing of drying plant, dry operation again, like this, increased the equipment input, and floor space is big, long processing period, easily produce secondary pollution, energy consumption and operating cost height.
The utility model content
Technical problem to be solved in the utility model is, can not directly dry the deficiency of operation to high-moisture (〉=25%) material at existing drying plant, a kind of rotary dryer that is applicable to high moisture material (25%～85%) is provided, drop into and floor space with minimizing equipment, shorten the processing cycle, avoid secondary pollution, cut down the consumption of energy and operating cost.
The technical scheme that its technical problem that solves the utility model adopts is: comprise cylindrical shell, transmission device, riding wheel apparatus; Head and the tail at cylindrical shell are arranged with charging material mouth, feed auger and discharging opening, discharge valve, discharging cover; It is characterized in that: the inner chamber at cylindrical shell is divided into preheating zone, baking zone and dry section successively from head to tail; On the cylinder inboard wall of preheating zone, be equipped with that several piece is evenly, is interspersed and with the sweptback lifting blade I of cylindrical shell bus; On the cylinder inboard wall in baking zone proparea, be equipped with that several piece is evenly, is interspersed and with the perpendicular lifting blade II of cylindrical shell bus, lifting blade III that several piece is evenly, is interspersed and that turn forward with the cylindrical shell bus is housed on the cylinder inboard wall of baking zone back zone; On the cylinder inboard wall of dry section, be equipped with that several piece is evenly, is interspersed and with the sweptback lifting blade IV of cylindrical shell bus, and the fylfot lifting blade that multiple tracks has cross bracket is housed in the cylindrical shell of dry section; The broken arch chain that some two ends and cylinder inboard wall fix is housed on cylinder inboard wall.
Above-mentioned lifting blade I, lifting blade III and lifting blade IV are 5～10 °, 5～15 ° and 10～15 ° of angles with the bus of cylindrical shell respectively; The size of lifting blade I, lifting blade II, lifting blade III and lifting blade IV increases successively.
The length of above-mentioned preheating zone, baking zone and dry section is respectively 15%～25%, 45%～55% and 25%～35% of cylindrical shell length, and wherein, the length in baking zone proparea is 1/3～1/2 of baking zone length.
Be converted into forward at 1/5～1/8 place, top and be respectively 155～165 °, 135～150 °, 135～150 ° and 110～125 ° of angles from lifting blade I, lifting blade II, lifting blade III and lifting blade IV.
Dryer described in the utility model is when work, cylindrical shell is turned round by the driving of transmission device, high moisture material and hot blast enter cylindrical shell from charging aperture, under the effect of feed auger, and because cylindrical shell center line and the angled installation of horizontal plane, revolution along with cylindrical shell, material is under the effect of self gravitation, inwall along cylindrical shell moves axially, enter the preheating zone successively, baking zone and dry section, material is at lifting blade I, lifting blade II, lifting blade III and lifting blade IV, and being taken up respectively or under the acting in conjunction of fylfot lifting blade, shed, carry out heat exchange, thereby reach the purpose of oven dry material with thermal current.Particularly: in the preheating zone, because lifting blade I size is less relatively and recede (promptly opposite with the cylindrical shell direction of rotation) with the cylindrical shell bus, angle angle that lifting blade I front end is converted into is bigger, guarantee to make the high moisture material with certain viscosity easilier in the process of cylindrical shell running from lifting blade, come off, is thrown scatter in, increase the area that material cross section in cylindrical shell forms the material curtain to greatest extent, increase improves heat utilization efficiency with the thermal current contact area; Proparea at baking zone, reduce because moisture is existing in the material, material progressively descends with cylindrical shell and the bonding ability of lifting blade II, by with the lifting blade II of the perpendicular layout of cylindrical shell bus, and its size increases to some extent, the front end angle reduces to some extent, thereby make kicking up of material more abundant, further remove the moisture in the material; Back zone at baking zone, by lifting blade III by turn forward with the cylindrical shell bus (promptly identical) with the cylindrical shell direction of rotation, and its size further increases, the angle of lifting blade II front end further reduces, make material on the cross section in this space, form maximum material curtain area, improve the heat energy utilization rate to greatest extent.At dry section, through the material after the baking zone processing, its moisture reduces greatly, material is again by kicking up with the sweptback lifting blade IV of cylindrical shell bus, and the hypsokinesis angle of lifting blade IV is bigger than lifting blade I, size is also maximum, the effect of the fylfot lifting blade at cylindrical shell middle part in addition, make the material energy that enters this district timely, be taken up fully, shed, material forms a complete material curtain on the cross section in cylindrical shell, has eliminated the possibility that the wind-tunnel phenomenon produces, the material that the quilt throwing is kicked up is in the process that falls, kicked up once more by ten thousand word lifting blades again, prolonged material time of staying aloft, it is more abundant to carry out heat exchange with thermal current.In the process of oven dry operation, contained humidity is reducing gradually in the material, the hardness of material also progressively strengthens and is agglomerated into bulk, broken arch chain collides the material piece by gravity that self had and the inertia force that produces with the cylindrical shell rotation, broken, material after the fragmentation is not only being increased with the thermal current contact area by in the process of kicking up, improve the thermal efficiency, while is owing to the material particular diameter after the fragmentation reducing, fundamentally eliminated the generation of material clogging in dryer internal motion process, make material successfully to move axially to discharge end, the material that arrives discharge end draws off by discharge valve from discharging opening, and waste gas then enters deduster through top discharging cover and purifies the back emptying.Like this, the material of Gao Shui is behind above-mentioned preheating zone, baking zone and dry section, and its moisture content can reduce to 3～5%.
The beneficial effects of the utility model are: can directly dry processing to high moisture material, equipment input and floor space have been reduced effectively, shortened the processing cycle, avoided secondary pollution, energy consumption and operating cost have been reduced, material water ratio after oven dry is handled can be reduced to 3～5%, and the oven dry treatment effect is good.
Description of drawings
Fig. 1 is a structure structure chart of the present utility model;
Fig. 2 is the schematic cross-section of the utility model preheating zone;
Fig. 3 is the schematic cross-section in the utility model baking zone proparea;
Fig. 4 is the schematic cross-section of the utility model baking zone back zone;
Fig. 5 is the schematic cross-section of the utility model dry section.
Among the figure: 1 for charging aperture, 2 for feed auger, 3 for cylindrical shell, 4 for lifting blade I, 5 for lifting blade II, 6 for lifting blade III, 7 for lifting blade IV, 8 for cross frame, 9 for broken arch chain, 10 for the discharging cover, 11 for discharge valve, 12 for discharging opening, 13 for transmission mechanism, 14 for wheel holding mechanism, 15 for fylfot lifting blade, A be that preheating zone, B are that baking zone, B-1 are that baking zone proparea, B-2 are that baking zone back zone, C are dry section.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail:
The utility model embodiment is an example with the high-moisture rotary dryer of the long 22m of cylindrical shell, diameter 3m.
The described high-moisture rotary drying machine of the utility model embodiment comprises cylindrical shell 3, transmission device 13, riding wheel apparatus 14; The wheel band that passes through of cylindrical shell 3 places on the riding wheel apparatus 14, and cylindrical shell 3 center lines become 3 with horizontal plane
0The angle, the rotary motive power of cylindrical shell 3 is provided by transmission device 13.Head end at cylindrical shell 3 is provided with charging material mouth 1, feed auger 2, and its tail end is provided with discharging opening 12, discharge valve 11 and discharging cover 10.(being that feed end is to discharge end) is divided into long baking zone B of 3.1m long preheating zone A, 10.5m and the long dry section C of 6.5m to the inner chamber of cylindrical shell 3 successively from head to tail; Wherein, baking zone B is divided into long baking zone proparea B1 of 5m and 5.5 long baking zone B2 again.
As shown in Figure 2, five groups, every lifting blade I4 that organizes 16, is of a size of 200 * 200mm is housed on cylindrical shell 3 inwalls of preheating zone A, every group of lifting blade I4 distributes along the circumferentially even of cylindrical shell 3 inwalls, and the lifting blade I4 of adjacent set staggers mutually; Lifting blade I4 recedes (promptly the direction of rotation with cylindrical shell 3 is opposite) with cylindrical shell 3 buses, and the diameter of lifting blade I4 and cylindrical shell 3 is the angle of α=8 °; And, 1/5 place, front portion (being 40mm) of lifting blade I4 (direction of rotation of cylindrical shell 3) forward is converted into 155 ° angle, with guarantee to make the high moisture material with certain viscosity easilier in the process of cylindrical shell running come off from lifting blade I, is thrown scatter in, increase the area that material cross section in cylindrical shell forms the material curtain to greatest extent, increase is with the thermal current contact area, improve heat utilization efficiency, remove the portion of water in the material.
As shown in Figure 3, be equipped with six groups, every group 16 on the cylinder inboard wall of baking zone proparea B1, be of a size of the lifting blade II5 of 200 * 250mm, every group of lifting blade II5 circumferentially evenly distributes along cylindrical shell 3 inwalls, and the lifting blade II5 of adjacent set staggers mutually; Lifting blade II5 and cylindrical shell 3 buses are to vertical; And 1/6 place, front portion (being 42mm) of lifting blade II5 (direction of rotation of cylindrical shell 3) forward is converted into 145 ° angle, thereby makes kicking up of material more abundant, further removes the moisture in the material;
As shown in Figure 4, adorn seven groups, every group 16 on cylindrical shell 3 inwalls of baking zone back zone B2, be of a size of the lifting blade III6 of 200 * 350mm, every group of lifting blade III6 circumferentially evenly distributes along cylindrical shell 3 inwalls, and the lifting blade III6 of adjacent set staggers mutually; Lifting blade III6 turns forward (promptly the direction of rotation with cylindrical shell 3 is identical) with cylindrical shell 3 buses, and the diameter of lifting blade III6 and cylindrical shell 3 is the angle of β=10 °; And 1/8 place, front portion (being 44mm) of lifting blade III6 (being the direction of rotation of cylindrical shell 3) forward is converted into 145 ° angle, thereby makes kicking up of material more abundant, further removes the moisture in the material;
As shown in Figure 5,240 pieces are housed on cylindrical shell 3 inwalls of dry section C, divide the lifting blade IV7 of 400 * 400mm of 15 groups, every group of lifting blade IV7 circumferentially evenly distributes along cylindrical shell 3 inwalls, and the lifting blade IV7 of adjacent set staggers mutually; Lifting blade IV7 recedes (promptly the direction of rotation with cylindrical shell 3 is opposite) with cylindrical shell 3 buses, and the diameter of lifting blade IV7 and cylindrical shell 3 is the angle of γ=12 °; And 1/8 place, front portion (being 50mm) of lifting blade IV7 (direction of rotation of cylindrical shell 3) forward is converted into 120 ° angle.Simultaneously, twice cross bracket 8 is housed, four fylfot lifting blades 15 are housed on each support 8 at the center of cylindrical shell 3.Thereby make the material that enters this district can be in time, kicked up, shed by lifting blade IV7 fully, material forms a complete material curtain on the cross section in cylindrical shell 3, eliminated the possibility that the wind-tunnel phenomenon produces, the material that the quilt throwing is kicked up is in the process that falls, kicked up once more by ten thousand word lifting blades 15 again, prolonged material time of staying aloft, it is more abundant to carry out heat exchange with thermal current.Like this, the material of Gao Shui is behind above-mentioned preheating zone A, baking zone B and dry section C, and its moisture content can reduce to 3～5%.
Go out it can also be seen that from Fig. 2, the broken arch chain 9 that some two ends and cylindrical shell 3 inwalls fix is housed on the inwall (comprising preheating zone A, baking zone B and dry section C) of cylindrical shell 2.Drying when material in the process of operation, contained humidity is reducing gradually in the material, the hardness of material also progressively strengthens and is agglomerated into bulk, gravity that self is had by broken arch chain 9 and the inertia force that produces with cylindrical shell 3 rotations to the material piece collide, fragmentation, material after the fragmentation is not only being increased with the thermal current contact area, is being improved the thermal efficiency in the process of kicking up, simultaneously because the generation of material clogging in cylindrical shell 3 internal motion processes has been eliminated in reducing of the material particular diameter after the fragmentation.
During work, the waiting of moisture content 〉=30% dried flow and the 800 ℃ left and right sides hot blast of material about with 80t/h and entered cylindrical shell 3 with≤20m/s flow velocity from charging aperture 1, cylindrical shell 3 is with the rotational speed of 1-5r/min, and material is behind the A of preheating zone, and moisture content is reduced to about 20%; Then, behind the drying district B, the moisture content of material can drop to 8-5%; Again behind the drying district C, the containing rate and can reduce to 3～5% of material.Material after the oven dry draws off by discharge valve 11 from discharging opening 12, and waste gas then enters deduster through top discharging cover 10 and purifies the back emptying.
Claims (4)
1, a kind of rotary dryer that is applicable to high moisture material comprises cylindrical shell, transmission device, riding wheel apparatus; Head and the tail at cylindrical shell are arranged with charging material mouth, feed auger and discharging opening, discharge valve, discharging cover; It is characterized in that: the inner chamber at cylindrical shell is divided into preheating zone, baking zone and dry section successively from head to tail; On the cylinder inboard wall of preheating zone, be equipped with that several piece is evenly, is interspersed and with the sweptback lifting blade I of cylindrical shell bus; On the cylinder inboard wall in baking zone proparea, be equipped with that several piece is evenly, is interspersed and with the perpendicular lifting blade II of cylindrical shell bus, lifting blade III that several piece is evenly, is interspersed and that turn forward with the cylindrical shell bus is housed on the cylinder inboard wall of baking zone back zone; On the cylinder inboard wall of dry section, be equipped with that several piece is evenly, is interspersed and with the sweptback lifting blade IV of cylindrical shell bus, and the fylfot lifting blade that multiple tracks has cross bracket is housed in the cylindrical shell of dry section; The broken arch chain that some two ends and cylinder inboard wall fix is housed on cylinder inboard wall.
2, a kind of rotary dryer that is applicable to high moisture material according to claim 1 is characterized in that: above-mentioned lifting blade I, lifting blade III and lifting blade IV are 5～10 °, 5～15 ° and 10～15 ° of angles with the diameter of cylindrical shell respectively; The size of lifting blade I, lifting blade II, lifting blade III and lifting blade IV increases successively.
3, a kind of rotary dryer that is applicable to high moisture material according to claim 1, it is characterized in that: the length of above-mentioned preheating zone, baking zone and dry section is respectively 15%～25%, 45%～55% and 25%～35% of cylindrical shell length, wherein, the length in baking zone proparea is 1/3～1/2 of baking zone length.
4, a kind of rotary dryer that is applicable to high moisture material according to claim 1 and 2 is characterized in that: be converted into forward at 1/5～1/8 place, top from lifting blade I, lifting blade II, lifting blade III and lifting blade IV and be respectively 155～165 °, 135～150 °, 135～150 ° and 110～125 ° of angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820132830XU CN201246942Y (en) | 2008-08-06 | 2008-08-06 | Rotary type drying machine suitable for high moisture material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820132830XU CN201246942Y (en) | 2008-08-06 | 2008-08-06 | Rotary type drying machine suitable for high moisture material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201246942Y true CN201246942Y (en) | 2009-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820132830XU Expired - Lifetime CN201246942Y (en) | 2008-08-06 | 2008-08-06 | Rotary type drying machine suitable for high moisture material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201246942Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102173554A (en) * | 2011-01-07 | 2011-09-07 | 袁文献 | System for drying and handling sludge with waste gas from cement production |
| CN103063009A (en) * | 2013-01-31 | 2013-04-24 | 盐城市赛隆节能技术工程有限公司 | Combined lifting board structure of single-barrel dryer |
| CN104830361A (en) * | 2015-04-29 | 2015-08-12 | 徐州曹氏化工机械制造有限公司 | Rotary drying furnace with dedusting function |
-
2008
- 2008-08-06 CN CNU200820132830XU patent/CN201246942Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102173554A (en) * | 2011-01-07 | 2011-09-07 | 袁文献 | System for drying and handling sludge with waste gas from cement production |
| CN103063009A (en) * | 2013-01-31 | 2013-04-24 | 盐城市赛隆节能技术工程有限公司 | Combined lifting board structure of single-barrel dryer |
| CN104830361A (en) * | 2015-04-29 | 2015-08-12 | 徐州曹氏化工机械制造有限公司 | Rotary drying furnace with dedusting function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20080806 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |