Vertical material rolling dryer
Technical field
The present invention relates to material drying machine field, particularly relate to a kind of vertical material rolling dryer.
Background technology
In the production fields such as building materials, metallurgy, chemical industry, printing, moulded coal, often need the material of certain particle size to dry, tower drier is as drying plant conventional in above-mentioned production field, and it is along with people have also obtained development fast to improving constantly of the requirements such as environment, the energy and efficiency.
Publication number is that the disclosed gravity drying machine of the Chinese patent application of CN101017054A is a kind of in common tower drier, this gravity drying machine comprises cylindrical shell, the collet in cylindrical shell that is located at cylindrical shell coaxial line, be located at the material distributing cone at collet top and be located at the parts such as lifting blade on cylinder inboard wall face, wherein in collet, form a hot-air channel, between lifting blade and collet, form a material channel, cylindrical shell is provided with waste gas outlet, during work, the hot blast producing in the firing equipments such as fluidized bed furnace is passed into the hot-air channel of collet, by corresponding material elevator, material is trickled down on material distributing cone, material is dispersed in material channel after material distributing cone, hot blast in collet rises on one side, air outlet between adjacent collet, entering material channel on one side dries heating material, with the discharge of the waste gas outlet from cylindrical shell of waste gas after material-heat-exchanging.
Known by above description, in above-mentioned gravity drying machine, collet and lifting blade are the main parts that affect drying efficiency, specifically, if the distance between collet and lifting blade is excessive, the material falling cannot fully be accepted the collision of collet and lifting blade and block, it certainly will cannot be broken up fully and be carried out heat exchange with hot blast, the result that this situation directly causes is exactly that material majority can not once reach drying requirement, but in order to guarantee that material can be by first drying, spacing between collet and lifting blade is done after little and can directly be affected the drying efficiency of dryer, the simultaneously setting of collet and lifting blade also can affect fully contacting of hot blast and storeroom, this has caused the waste to heat-source energy.
In order to improve the drying efficiency of tower drier, on market, there is a kind of double-drum dryer, it is on the basis of above-mentioned tower drier, to adopt double-deck cylindrical shell and collet, lifting blade etc., be about to dryer and be made as two drying units that layering is nested together, the Chinese patent application that for example publication No. is 102230721A and notification number are just to disclose respectively the related content of double-drum dryer in the Chinese patent of CN203100394U, CN203100409U.Above-mentioned double-drum dryer can improve by increasing the volume of tower drier the operating efficiency of separate unit dryer.But the setting of collet and lifting blade still can affect fully contacting of hot blast and storeroom, and above-mentioned double-drum dryer is still being deposited problem low at drying efficiency, that waste energy.
Summary of the invention
The object of the present invention is to provide a kind of vertical material rolling dryer, to improve tower drier to the utilization rate of the energy and drying efficiency.
In order to address the above problem, vertical material of the present invention rolls dryer by the following technical solutions: vertical material rolling dryer, comprise two drying units that are nested together with higher slice, each drying unit includes outer cylinder body and inner barrel, one side of outer cylinder body is provided with outer gas flow passage, in inner barrel, be provided with internal layer gas channel, in, between outer cylinder body, surround material channel, axis around inner barrel in the material channel of each drying unit is laid with plural dividing plate, described dividing plate upper, between lower two ends, there is at least one for guiding the material guide structure that is rolled mobile by material drying, in each drying unit, outer gas flow passage is all communicated with its material channel, in, one in outer gas flow passage is hot-air channel, another is exhaust steam passage.
Described material guide structure consists of the torsional part being located between the upper/lower terminal of dividing plate.
The torsion angle sum of all torsional parts of described dividing plate is not less than 180 °.
The torsion angle of each torsional part of dividing plate is not more than 180 °.
Described outer gas flow passage is exhaust steam passage.
Between the two ends of described dividing plate, be provided with reinforcement strut, strengthen strut and be fixed between outer cylinder body and inner barrel.
Described dividing plate is helical blade, and material guide structure consists of the helical buckling portion on dividing plate.
The adjacent connection of hot-air channel of adjacent two drying units or the adjacent connection of exhaust steam passage.
Described inside and outside cylindrical shell and dividing plate are respectively the split type splicing construction that comprises at least two joints.
Air inducing pipeline, middle part that the top of this dryer, bottom are respectively equipped with for introducing hot blast are provided with for concentrating the exhaust duct of discharging waste gas, and air inducing pipeline is communicated with the hot-air channel of each drying unit, and exhaust duct is communicated with the exhaust steam passage of each drying unit.
In material channel due to this vertical material rolling dryer, be provided with plural dividing plate, and each dividing plate is upper, between lower two ends, there is at least one for guiding the material guide structure that is rolled mobile by material drying, therefore, in the process of using, when material falls into and passes through material channel from the top of material channel, will in the process falling, there is rollover phenomenon by directing material in the material guide structure on dividing plate, thereby make to be originally positioned at the outwards rolling of material (material pasting with dividing plate) of internal layer, being positioned at outer field material starts to the corresponding side surface of dividing plate close, material is fallen on one side, rolling on one side, in the time of with hot blast heat exchange, between material itself, also by the abundant mixing in rolling process, carried out heat exchange, thereby can greatly improve the utilization rate to thermal source, quickening is to the speed of throwing in material in material channel, improve the production efficiency of tower drier.
Further, after adopting the material guide structure of torsional part as dividing plate, not only can not affect the falling speed of material, and the two sides of hypothesis dividing plate is distinguished and a face and b face, a face and b face have in fact all reversed an angle after described torsional part, therefore, when in use, when the material of being dried enters to material channel process dividing plate from material channel top, it was vertically to flow before the torsional part that arrives dividing plate, after the torsional part through dividing plate, the material falling starts commutation under the guiding function of dividing plate torsional part, the material that is a face turns to along with turning to of a face, the material of b face turns to along with turning to of b face, make material tumble mixed fully, when the torsion angle of the torsional part of dividing plate equal 180 ° time, just can realize the once completely alternately inside and outside of material, making the torsion angle of each torsional part be not more than 180 ° is for fear of dividing plate oneself, because torsion forms, to be rolled into vertical passageway, guarantees the guiding effect of dividing plate to material, strengthening strut and play the effect of strengthening dividing plate, is be hit and produce deformation for fear of dividing plate, the dividing plate that adopts helical blade structure is also to realize rolling in material dropping process, and splicing structure has facilitated the manufacture of dryer and transportation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of vertical material rolling dryer;
Fig. 2 is the structural representation of the joint in the embodiment of vertical material rolling dryer;
Fig. 3 is the A-A cutaway view of Fig. 2;
Fig. 4 is the structural representation of the dividing plate in Fig. 3;
Fig. 5 is the stereogram of the dividing plate in Fig. 4.
The specific embodiment
The embodiment of vertical material rolling dryer, as Figure 1-5, this vertical material rolling dryer comprises from outside to inside the coaxial two-layer drying unit arranging successively, every layer of drying unit includes outer cylinder body and inner barrel, herein for the convenient differentiation to two drying units, outer, the inner barrel of outer drying unit are called to outer outer cylinder body 11, outer inner barrel 12, outer, the inner barrel of internal layer drying unit are become to internal layer outer cylinder body 13, internal layer inner barrel 14.In addition, the top of this dryer, bottom are also respectively equipped with air inducing pipeline 15, air inducing pipeline 15 for introducing hot blast in dryer, the middle part of dryer is provided with exhaust piping 16, air inducing pipeline and exhaust piping are all to consist of bellows chamber, are unified discharge after the waste gas of exhaust piping 16 for centralized collection dryer.In the present embodiment, for convenient processing and transportation, outer outer cylinder body 11, outer inner barrel 12, internal layer outer cylinder body 13 and internal layer inner barrel 14 are all to adopt split splicing structure, they are divided into five joints in correspondence with each other separately, and this makes this vertical material rolling dryer form the splicing structure that includes five joints.
Between outer outer cylinder body 11 and outer inner barrel 12 and surrounded respectively annular material channel between internal layer outer cylinder body 13 and internal layer inner barrel 14, material channel between outer outer cylinder body 11 and outer inner barrel 12 is called to outer material channel herein, the material channel between internal layer outer cylinder body 13 and internal layer inner barrel 14 is called to internal layer material channel.
The outside of outer outer cylinder body 11 is provided with exhaust steam passage 17, exhaust steam passage 17 consists of the sandwich being located on outer outer cylinder body, it is communicated with exhaust piping 16, in addition, the barrel of outer outer cylinder body 11 is provided with waste gas outlet, waste gas outlet is communicated with described exhaust steam passage, in outer inner barrel 12, be provided with hot-air channel, hot-air channel is communicated with air inducing pipeline 15, it has specifically been surrounded and has been formed simultaneously the hot-air channel in internal layer outer cylinder body 13 outsides together with internal layer outer cylinder body 13 by outer inner barrel 12, in, the hot-air channel of outer drying unit has interconnected, on the barrel of outer inner barrel 12 and internal layer outer cylinder body 13, be respectively equipped with cloth air port, internal layer inner barrel 14 has surrounded the exhaust steam passage of internal layer drying unit, exhaust steam passage and the exhaust steam passage in internal layer inner barrel 14 in outer outer cylinder body 11 outsides are all communicated with exhaust piping 16.In the process of using, can in hot-air channel, introduce hot blast by air inducing pipeline 15, enter the hot blast in hot-air channel and then enter in outer material channel and internal layer material channel by the cloth air port on outer inner barrel 12 and internal layer outer cylinder body 13, material is injected towards inside and outside layer material channel by the top from inside and outside layer material channel, in the process falling, by the hot-air seasoning in corresponding material channel, by exhaust steam passage, flow in exhaust piping 16 and concentrate discharge with the waste gas after material-heat-exchanging.
In inside and outside layer material channel, be respectively equipped with dividing plate 18, dividing plate 18 in outer material channel is laid around outer inner barrel 12, dividing plate in internal layer material channel is laid around internal layer inner barrel 14, their structure is identical, below the dividing plate of take in outer material channel is introduced to structure, function and the principle of dividing plate as example.The same with outer outer cylinder body 11, dividing plate 18 also adopts split type splicing construction, between the upper/lower terminal of each joint of dividing plate 18, all there is one for the directing material mobile torsion structure that rolls, in the present embodiment, torsion structure adopts the torsional part between the upper/lower terminal that is located at dividing plate 18 each joint, when dividing plate is overall structure, the upper/lower terminal of controlling dividing plate 18 turns the variant part of rear formation in the opposite direction, in the present embodiment, because dividing plate 18 is split type structures, described torsional part is for being spliced.The torsion angle of each torsional part is 180 °, in such cases, the two sides of supposing dividing plate 18 are respectively a face and b face, after reversing, the corresponding joint two ends place of a face and each comfortable dividing plate 18 of b face towards just contrary, the material of take on a face is example, when material is from the process of the whereabouts, top of material channel, first be vertical whereabouts, when passing through the torsional part of dividing plate 18, the material of being originally close to dividing plate will roll to skin, originally being positioned at outer field material rolls to internal layer, thereby material is fallen on one side, rolling on one side, in the time of with hot blast heat exchange, between material itself, also by the abundant mixing in rolling process, carried out heat exchange.In order to guarantee the assembling intensity to dividing plate, between the two ends of dividing plate 18, be provided with and strengthen strut 19, strengthen strut 19 and be fixed between outer outer cylinder body and outer inner barrel.
In other embodiment of vertical material rolling dryer, the torsion angle of each torsional part of dividing plate be not more than 180 ° all can, in such cases, in order to guarantee the efficiency of dryer, should guarantee that the torsion angle sum of all torsional parts of each dividing plate is not less than 180 °; Dividing plate can also adopt helical blade, and in such cases, described material guide structure consists of the helical buckling portion of dividing plate; The quantity of drying materials unit can also, for more than three, only need their layerings to be from inside to outside nested together in such cases; The exhaust steam passage of adjacent two drying materials unit can also be made as to adjacent structure and make the two connection.