CN102445059B - Countercurrent double-loop cylinder dryer - Google Patents
Countercurrent double-loop cylinder dryer Download PDFInfo
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- CN102445059B CN102445059B CN201110401027.8A CN201110401027A CN102445059B CN 102445059 B CN102445059 B CN 102445059B CN 201110401027 A CN201110401027 A CN 201110401027A CN 102445059 B CN102445059 B CN 102445059B
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Abstract
The invention relates to a countercurrent double-loop cylinder dryer, which comprises a support, an inner cylinder, an outer cylinder, a driving device, a feeding device and a discharging device, and is characterized in that: a middle cylinder is arranged between the inner cylinder and the outer cylinder, and one end of the inner cylinder and one end of the middle cylinder are respectively provided with an annular seal plate; one end of the outer cylinder is provided with a seal plate, and the three cylinders constitutes a material layer and two flue gas heating units, i.e., an inner-layer flue and an outer-layer flue; and a plurality of reinforcing supporting columns are arranged among the three cylinders for connecting and positioning, and frying plates are uniformly arranged on the outer wall plate of the inner cylinder and the inner wall plate of the middle cylinder. The problems that the material and the flue gas flow from the same pipeline, and are fully mixed, so that the dried material is mixed with impurities and the production safety is possibly generated by ineffectively controlling sparks in the flue gas to be contacted with the material and the like in the traditional drum drying machine can be solved, the structural design is reasonable, the performance is stable, the process flow is smooth, the overheating time of a dry area is long, the thermal efficiency is high, the energy is saved and the consumption is reduced, the quality of the dried material is high, and the range of application is wide.
Description
Technical field
The present invention relates to that a kind of a large amount of material drying device, particularly a kind of precipitation range are large, energy-saving consumption-reducing, countercurrent double-loop cylinder dryer that the thermal efficiency is high.It is widely used in the dehydrating of low sticky material of the industries such as pharmacy, light industry, chemical industry, environmental protection, feed, agricultural, forestry.
Background technology
At present, material drying device has been widely used in the dehydrating of low sticky material of the industries such as chemical industry, mine, agricultural, industry, light industry, medicine and environmental protection, being current main product and apply more individual layer cylindrical drier, all there is defect to a certain extent in its device structure, equipment technique and transmission system etc.First equip in technique and have the following disadvantages: existing individual layer cylindrical drier adopts the high heated drying material of 300-600 DEG C, and the materials such as its simplified employing refractory brick are constructed heat-insulation layer, therefore equipment volume is large, coefficient of admission is less, and material bearing capacity is also little more.Because motion revolution is lower than 6r/min, be subject to the limitation of material scattering mechanism structure, in machine, material curtain is along the clothoid vertical drop of center line front, many, the blank coefficients in tomography space are excessive, thermal medium and material touch opportunity is few, heat-transfer capability is poor, and combustion gas temperature is high, burn sack cleaner, humidity is little, and heat loss is large, and the thermal efficiency is relatively low.Along with national economy develop rapidly, the raising of scientific and technological level, some professional very strong special case roller drying technology are also arisen at the historic moment, but divide and equally all belong to individual layer cylindrical drier series by its design feature, report according to patent documentation: " horizontal drum drying machinery " that notification number is CN2290004Y, notification number be CN2238407Y's " Double heating revolving drum drier ", notification number be CN2690826Y's " the special indirect dryer of rotation drum type garbage disposal ", notification number be CN2606321Y's " flash rotary kiln " etc., be the special case technology of individual layer cylindrical drier category.Secondly equipment configuration has the following disadvantages:
(1) because existing individual layer cylindrical drier operation revolution is low, the disconnected duty factor of material curtain is large, high temperature thermal medium is burned wall, therefore for reducing body heat radiation and being convenient to transmission system setting, be all generally to adopt three layers of wallboard, centre additionally arranges the method for refractory brick, although solved the setting of heat radiation and transmission system, establish each deadweight but increased, increased power consumption;
(2) conventional monolayers drum-type or encircle the simplified of cylindrical drier more and be mostly and be in tilted layout, its axis and horizontal angle are no more than 8 °, generally adopt 1.5 °-3.0 °.Need to gear wheel be set in the corresponding side of rolling ring for overcoming axial force, will carry out the design of best fit to rolling ring and the support roller of the gear of drive unit and gear ring, bracing or strutting arrangement simultaneously, however, still affect serviceability and the service life of these parts.
(3) between the cylinder of existing many ring cylindrical driers, a two ends of being everlasting adopt multiple support bars to be connected and fixed.Due to wet stock and thermal medium, to carry out the thermal stress that causes because of thermal deformation between each cylinder in the process of heat exchange larger, adding the one-sided driving of its simplified employing rotates, increase the distorting stress that the morpheme distortion under torsional interaction produces, these stress will cause weld cracking or simplified distortion as do not solved well, when serious, will make device damage.Home and abroad has occurred that employing one end fixes in succession for this reason, and the structural design that the other end is slidably connected, attempts to change above-mentioned supporting form.As notification number be CN1808029A " draw bail of multi-ring drum drying machine ", its one end radial support adopts fixing welding, the other end is slide block structure, middle part is unsettled, without supporting, feasible as small drying apparatus for drying light body material, but for large-scale drying equipment, need the ratio of material drying great, more than drum length reaches 20m, carrying material amount reaches 100T when above, this only end have support middle part unsettled and be slide block connect structure, its circumferential and axial are all actually unrooted without the multi-ring drum drying machine of location and support, increase the destabilizing factor of equipment operation, be prone to urceolus and middle cylinder or inner core motion asynchronous or the problem such as channel bit vertically.Therefore existing individual layer drum-type or to encircle the draw bail of cylindrical drier in urgent need to be improved and improve more.The deficiency that transmission system exists again: domestic roller drier transmission power is calculated and is mostly to adopt empirical equation to design and calculate, and its formula has mainly comprised the power (overcoming eccentric moment) of bulk material motion needs in (1) cylinder; (2) power that cylinder rotation needs; (3) cylinder support section friction power drain has only calculated its efficiency in the configuration of reductor, and therefore, it is all bigger than normal, higher that existing individual layer roller drier is equipped with power.The revolving drum drying machine that for example existing specification is 6mx24m, estimates heavy 189T, is equipped with power of motor (160x2) KW; Specification is the revolving drum drying machine of 44.2mx12m, estimates heavy 140T, is equipped with power of motor 132KW etc., and it is higher that it is equipped with power, and retarding device is larger." double return journey barrel type drying machines " of CN 101216240A adopts the simplified axis of body parallel with horizontal plane, simplified by arranged concentric, outer simplified mutual dislocation is set in together, the cavity volume forming forms respectively two drying dewatering unit, in, outer simplified adjacent wallboard is asked by adjusting and is supported and reinforcement buffer plate connection location, the periphery of outer simplified wallboard arranges thermal isolating panel, interior, the inner peripheral surface of outer simplified wallboard arranges respectively and is homocline that screw-pushing type arranges and throws and remove device, and make the rotation direction of its helix contrary, the gear ring of body periphery and the assembling of simplified center of gravity centering.It is yielding unsceptered and the defect such as axially channel bit that it efficiently solves that conventional rollers formula drying machine exists, and one time precipitation range is large, and efficiency of utilization is high, energy-saving consumption-reducing.But its complex structure, dry run is long, and equipment manufacturing cost is higher.The applicant, through research for many years, for ensureing quality and the efficiency of dry materials, has developed the countercurrent double-loop cylinder dryer that a kind of material separates with flue gas.
The disadvantage of current existing drying machine: the one, the same pipeline of material and flue gas enters, and material fully mixes with flue gas, and material contacts with the impurity such as cigarette ash in flue gas, and dried material is mixed with impurity; The 2nd, the same pipeline of material and flue gas enters, and material fully mixes with flue gas, and the Mars that can not effectively control in flue gas contacts with material, and what dry material caught fire may be greatly, and production security is poor; The 3rd, dry materials region is overheated short, and the thermal efficiency utilizes low.
Summary of the invention
The object of the invention is: the countercurrent double-loop cylinder dryer that in order to overcome the technical problem of existing drying machine, provide that a kind of device structure is simple, technological operation is easy, efficiency of utilization is high, precipitation range is large, dried material quality is high, energy-saving consumption-reducing is effective, equipment investment is few, operating cost is low and applied widely.
The present invention is achieved in that
Countercurrent double-loop cylinder dryer, comprise by support, inner barrel, outer cylinder body, drive unit, feed arrangement and drawing mechanism, it is characterized in that: cylindrical shell in the middle of arranging between inner barrel and outer cylinder body, three cylindrical shells are located on same axis, one end of inner barrel and middle cylindrical shell arranges ring seal plate, outer cylinder body one end arranges shrouding, described three cylindrical shells form material bed and two flue gas unit, be internal layer gas flue and outer gas flue, several reinforcing support posts are set between described three cylindrical shells and connect location, at inner barrel exterior panel, inner barrel is evenly set and fries plate, in the middle of middle cylindrical shell inside panel evenly arranges, cylindrical shell is fried plate.
Above-described outer cylinder body two ends welding semicircle or the rolling ring of triangle outer cylinder body, outer cylinder body rolling ring is connected with location support roller.
Above-described feed arrangement adopts screw feeding device, screw feeding device arranges multiple conveyor screws, conveyor screw body one end arranges screw gear, screw gear is connected with driven wheel, screw feeding device arranges feed arrangement urceolus and forms vapor outlet port road and charging outlet, and charging outlet connects inner barrel outer end through body end.
Above-described drawing mechanism adopts spiral discharge device, and spiral discharge device is arranged at discharging opening below.
Above-described drive unit, comprises location support roller, gear-box, reductor and motor.
Operation principle:
Countercurrent double-loop cylinder dryer, by warm height flue gas by the gravitation of air-introduced machine, after entering into the other end by the inner barrel of drying machine, enter outer cylinder body revolution, flow along the outer gas flue of outer annular, inner barrel, middle cylindrical shell, inner barrel are fried to plate and middle cylindrical shell stir-fry plate radiant heat transfer, flue-gas temperature drops to 80-100 DEG C, discharges by exhanst gas outlet road to exhanst gas outlet.Material enters the material bed of drying machine by the charging aperture of feed arrangement at screw feeding device, fry plate at the inner barrel through the warm flue gas of height, middle cylindrical shell, inner barrel stir-fry plate and middle cylindrical shell dry, fry under plate and the effect of middle cylindrical shell stir-fry plate at inner barrel, rotation rolling, there is strong exchange heat, after being dried, advance to other end discharge hole for discharge.The steam producing after dry moves to vapor outlet port road by the effect of the air-introduced machine direction contrary with material and discharges through steam (vapor) outlet.
Advantage of the present invention and good effect:
1. countercurrent double-loop cylinder dryer, separates material with flue gas, avoided contacting of material and impurity in flue gas, has ensured dried material free from admixture, arid region overheated length, and the thermal efficiency is high, and energy-saving consumption-reducing, dried material quality are high;
2. countercurrent double-loop cylinder dryer, separates material with flue gas, avoided material and direct contact in flue gas, and the Mars of effectively controlling in flue gas contacts with material, and the possibility of having avoided dry material to catch fire ensures production safety.
3. countercurrent double-loop cylinder dryer, is suitable for the dry of the groove dreg type materials such as wood chip, sawdust, tangerine bar, wood shavings, bark, wood powder, rice husk, string, manioc waste, Chinese herbal medicine, various crystalline solid, inorganic fertilizer.Can adopt hot blast recycling or newly-built hot-blast stove according to user's condition, the thermal efficiency is up to 85%, and successful is higher than similar drying equipment.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the cutaway view of Fig. 1 along A-A line.
Fig. 3 is the cross-sectional schematic of the exhanst gas outlet in Fig. 1.
Fig. 4 is the cross-sectional schematic of the charging aperture in Fig. 1.
Description of reference numerals: 1-charging aperture, 2-vapor outlet port, 3-exhanst gas outlet, 4-outer cylinder body, cylindrical shell in the middle of 5-, 6-inner barrel, the outer gas flue of 7-, 8-is material bed, 9-internal layer gas flue, 10-gear ring, 11-inner barrel is fried plate, in the middle of 12-, cylindrical shell is fried plate, the rolling ring of 13-outer cylinder body, 14-support column, 15-ring seal plate, the outer gas approach of 16-, 17-shrouding, 18-discharging opening, 19-spiral discharge device, 20-support, 21-locates support roller, 22-support, 23-support, 24-gear-box, 25-reductor, 26-motor, 27-exhanst gas outlet road, 28-exhanst gas outlet device, 29-vapor outlet port road, 30-material inlet road, 31-feed arrangement urceolus, 32-screw feeding device, 33-gas approach, 34-screw gear, 35-driven wheel.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Describe concrete structure of the present invention in detail according to Fig. 1-4.Countercurrent double-loop cylinder dryer is improved on the architecture basics of traditional cylindrical drier, therefore the specification of its basic building block, model and manufacturing process should be definite by existing standard and relevant regulations, particularly structural design and use more should meet the requirement of safety production measures and the regulation of relevant criterion.This drying machine forms drying system by inner barrel 6, middle cylindrical shell 5 and outer cylinder body 4.Three cylindrical shells are located on same axis, cylindrical shell 5 in the middle of arranging between inner barrel 6 and outer cylinder body 4, one end of inner barrel 6 and middle cylindrical shell 5 arranges ring seal plate 15, outer cylinder body 4 one end arrange shrouding 17, several reinforcing support posts 14 are set between three cylindrical shells and connect location, at inner barrel 6 exterior panels, inner barrel is evenly set and fries plate 11, in the middle of middle cylindrical shell 5 inside panels evenly arrange, cylindrical shell is fried plate 12.Three cylindrical shells form one material bed 8 and two flue gas unit, and two flue gas unit are internal layer gas flue 9 and outer gas flue 7.Form drive system by location support roller 21, gear-box 24, reductor 25 and motor 26, outer cylinder body 4 two ends welding semicircle or triangle outer cylinder body rolling rings 13, outer cylinder body rolling ring 13 is connected with location support roller 21.Feed arrangement adopts screw feeding device 32, screw feeding device 32 arranges multiple conveyor screws, conveyor screw one end arranges screw gear 34, screw gear 34 is connected with driven wheel 35, screw feeding device 32 arranges feed arrangement urceolus 31 and forms vapor outlet port road 29 and charging outlet, and charging outlet connects inner barrel 6 outer ends through body end.Drawing mechanism adopts spiral discharge device 19, and spiral discharge device 19 is arranged at the below of discharging opening 18.
By warm height flue gas by the gravitation of air-introduced machine, enter into and enter outer cylinder body 4 after the other end and turn round by the inner barrel 6 of drying machine, flow along the outer gas flue 7 of outer annular, inner barrel 6, middle cylindrical shell 5, inner barrel are fried to plate 11 and middle cylindrical shell stir-fry plate 12 radiant heat transfers, flue-gas temperature drops to 80-100 DEG C, discharges by exhanst gas outlet road 27 to exhanst gas outlet 3.Material enters material bed 8 of drying machine by the charging aperture 1 of feed arrangement at screw feeding device 32, fry plate 12 at the inner barrel 6 through the warm flue gas of height, middle cylindrical shell 5, inner barrel stir-fry plate 11 and middle cylindrical shell dry, fry under plate 11 and 12 effects of middle cylindrical shell stir-fry plate at inner barrel, rotation rolling, there is strong exchange heat, after being dried, advance to 18 dischargings of other end discharging opening.The steam producing after dry moves to vapor outlet port road 29 by the effect of the air-introduced machine direction contrary with material and discharges through steam (vapor) outlet 2.
Claims (3)
1. a countercurrent double-loop cylinder dryer, comprise support, inner barrel, outer cylinder body, drive unit, feed arrangement and drawing mechanism, it is characterized in that: cylindrical shell (5) in the middle of arranging between inner barrel (6) and outer cylinder body (4), three cylindrical shells are located on same axis, one end of inner barrel (6) and middle cylindrical shell (5) arranges ring seal plate (15), outer cylinder body (4) one end arranges shrouding (17), described three cylindrical shells form material bed (8) and two flue gas unit, two flue gas unit are internal layer gas flue (9) and outer gas flue (7), several reinforcing support posts (14) are set between described three cylindrical shells and connect location, at inner barrel (6) exterior panel, inner barrel is evenly set and fries plate (11), in the middle of middle cylindrical shell (5) inside panel evenly arranges, cylindrical shell is fried plate (12),
Described drawing mechanism adopts spiral discharge device (19), and spiral discharge device (19) is arranged at discharging opening (18) below.
2. countercurrent double-loop cylinder dryer according to claim 1, it is characterized in that: described outer cylinder body (4) two ends welding semicircle or triangle outer cylinder body rolling ring (13), outer cylinder body rolling ring (13) is connected with location support roller (21).
3. countercurrent double-loop cylinder dryer according to claim 1, it is characterized in that: described feed arrangement adopts screw feeding device (32), screw feeding device (32) arranges multiple conveyor screws, spirochetal one end arranges screw gear (34), screw gear (34) is connected with driven wheel (35), screw feeding device (32) arranges feed arrangement urceolus (31) and forms vapor outlet port road (29) and charging outlet, and charging outlet connects inner barrel (6) outer end through body end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110401027.8A CN102445059B (en) | 2011-12-07 | 2011-12-07 | Countercurrent double-loop cylinder dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110401027.8A CN102445059B (en) | 2011-12-07 | 2011-12-07 | Countercurrent double-loop cylinder dryer |
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| Publication Number | Publication Date |
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| CN102445059A CN102445059A (en) | 2012-05-09 |
| CN102445059B true CN102445059B (en) | 2014-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110401027.8A Expired - Fee Related CN102445059B (en) | 2011-12-07 | 2011-12-07 | Countercurrent double-loop cylinder dryer |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1002768A1 (en) * | 1981-09-29 | 1983-03-07 | Казанский Ордена Ленина И Ордена Трудового Красного Знамени Государственный Университет Им.В.И.Ульянова-Ленина | Dryer |
| CN2400768Y (en) * | 1999-12-23 | 2000-10-11 | 刘德旺 | Rotary drier |
| CN101556106A (en) * | 2009-05-09 | 2009-10-14 | 江苏科行环境工程技术有限公司 | Novel three-cylinder dryer |
| CN201680678U (en) * | 2010-03-10 | 2010-12-22 | 四川雷鸣生物环保工程有限公司 | Municipal domestic waste roller drier |
| CN201992959U (en) * | 2011-03-10 | 2011-09-28 | 郑州市鼎力干燥设备有限公司 | Coal slurry drying device |
| JP2011214808A (en) * | 2010-04-02 | 2011-10-27 | Mitsubishi Heavy Ind Ltd | Drying device, drying facility and drying method |
-
2011
- 2011-12-07 CN CN201110401027.8A patent/CN102445059B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1002768A1 (en) * | 1981-09-29 | 1983-03-07 | Казанский Ордена Ленина И Ордена Трудового Красного Знамени Государственный Университет Им.В.И.Ульянова-Ленина | Dryer |
| CN2400768Y (en) * | 1999-12-23 | 2000-10-11 | 刘德旺 | Rotary drier |
| CN101556106A (en) * | 2009-05-09 | 2009-10-14 | 江苏科行环境工程技术有限公司 | Novel three-cylinder dryer |
| CN201680678U (en) * | 2010-03-10 | 2010-12-22 | 四川雷鸣生物环保工程有限公司 | Municipal domestic waste roller drier |
| JP2011214808A (en) * | 2010-04-02 | 2011-10-27 | Mitsubishi Heavy Ind Ltd | Drying device, drying facility and drying method |
| CN201992959U (en) * | 2011-03-10 | 2011-09-28 | 郑州市鼎力干燥设备有限公司 | Coal slurry drying device |
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