CN105546957B - It is a kind of to integrate heating and dry drying system - Google Patents

It is a kind of to integrate heating and dry drying system Download PDF

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Publication number
CN105546957B
CN105546957B CN201610007062.4A CN201610007062A CN105546957B CN 105546957 B CN105546957 B CN 105546957B CN 201610007062 A CN201610007062 A CN 201610007062A CN 105546957 B CN105546957 B CN 105546957B
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China
Prior art keywords
shaft
furnace body
blade
wall
agitating
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CN105546957A (en
Inventor
王良源
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JUYE ZHONGHAI CHEMICAL Co.,Ltd.
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王良源
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B11/00Machines or apparatus for drying solid materials or objects with movement which is non-progressive
    • F26B11/12Machines or apparatus for drying solid materials or objects with movement which is non-progressive in stationary drums or other mainly-closed receptacles with moving stirring devices
    • F26B11/14Machines or apparatus for drying solid materials or objects with movement which is non-progressive in stationary drums or other mainly-closed receptacles with moving stirring devices the stirring device moving in a horizontal or slightly-inclined plane
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/12Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/003Supply-air or gas filters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00Heating arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/005Treatment of dryer exhaust gases
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/04Agitating, stirring, or scraping devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B2200/00Drying processes and machines for solid materials characterised by the specific requirements of the drying good
    • F26B2200/18Sludges, e.g. sewage, waste, industrial processes, cooling towers

Abstract

The present invention discloses a kind of drying system for integrating heating with drying, including furnace body, for to the charging gear that material is added in furnace body, for collecting the material-receiving device of the material in furnace body after drying, it is by the first air inlet that extraneous hot gas introducing furnace is intracorporal to wind apparatus, and the agitating device for being stirred and crushing to material.Wherein, agitating device includes the second shaft, is threaded through in the cavity of the furnace body, and the second shaft has venting cavity, is provided with several puff prots on venting cavity, the jet direction of puff prot is not overlapped not parallel with the mixing direction of the mixing direction of agitating shaft and blade;When to dry materials, hot gas introduces in furnace body cavity through the first air inlet, the rotation of second shaft drives the mixing component in the second shaft constantly to be stirred along the radial and axial of the second shaft to material, material is enabled, along the axially and radially rolling of the second shaft, to increase the area of material and hot gas heat convection in furnace body.

Description

It is a kind of to integrate heating and dry drying system
Technical field
The present invention relates to heat drying technical fields, and in particular to a kind of drying system.
Background technique
Sludge is the product in sewage disposal process, containing a large amount of organic matter, heavy metal and mould etc., if being not added subsequent Processing environment can be caused seriously to pollute, therefore, often sludge is carried out concentration and dehydration, but by this processing after Moisture percentage in sewage sludge usually 70% or more, also need further to be dried sludge.
The drying system used in the prior art to drying sludge, structure is mostly such as Chinese patent literature Drying system disclosed in CN201058838Y, including furnace body, the batcher being connect with the feed inlet of furnace body, the outlet with furnace body The spray column of mouth connection.Wherein, furnace body includes setting in the intracorporal transmission shaft of furnace, is arranged on transmission shaft outer wall and radially extends Several hollow blades, hollow blade and furnace body outer wall are heated by being passed through high-temperature gas into transmission shaft, so that in furnace body Form hot environment.For this drying system during to dry materials, material is in inboard wall of furnace body, transmission shaft and blade outer wall In the cavity of formation, under the rotation of transmission shaft, blade stirs material along the direction that transmission shaft rotates, so that material is in the cavity It is stirred, and carries out heat convection between blade outer wall, transmission shaft outer wall and inboard wall of furnace body.
But above-mentioned drying system, material are transmitted the unidirectional blade stirring of axis always, carry out along same direction Rolling, on the one hand can reduce the heat-transfer effect in later period, and it is long that material is stirred interval time, cannot fully stir material It mixes;On the other hand, for material biggish for some humidity, it will cause along same direction rolling and bonded between material, shadow The shatter value for ringing material, is unfavorable for heat convection, causes heat exchange efficiency low, drying effect is bad.
In addition, in the prior art, when the intracorporal material of furnace is dried using gas, generally requiring in the outer of furnace body Portion's setting heating device heats gas, and the gas after heating is then passed into furnace interior again, this causes entirely dry Structure is complicated for drying system.
Summary of the invention
Therefore, technical problem to be solved by the present invention lies in overcome in the prior art drying system drying efficiency it is low, dry Dry effect is bad and complicated defect, so that providing one kind can be improved drying efficiency, improves drying effect and structure letter Single drying device.
For this purpose, the present invention provides a kind of drying system for integrating drying with heating, including
Furnace body, horizontally disposed, feed inlet, the discharge port for being added, taking out with cavity, for material;And heat supply Gas inflow, the first air inlet of outflow, the first gas outlet;
Charging gear, for material is added in the furnace body;
Material-receiving device, for collecting the material in the furnace body after drying;
Agitating device, including
First rotating shaft is threaded through in the cavity of the furnace body, has installation cavity, if being provided on the inner wall of the installation cavity Dry heating wire, the heating wire generate heat when being powered, and the first rotating shaft is made of Heat Conduction Material;
Second shaft is set in the first rotating shaft, and venting cavity is formed between the first rotating shaft, the ventilation Several puff prots, the mixing direction and the blade of the jet direction of the puff prot and the agitating shaft are provided on chamber Mixing direction be not overlapped not parallel, the central axes of the jet direction of the puff prot and the feed inlet form 30-50 degree folder Angle, the airintake direction of first air inlet with the jet direction of the puff prot is not parallel is not overlapped;
Connecting tube, the venting cavity are connect by connecting tube with first gas outlet, first gas outlet with it is described Puff prot does not open simultaneously;
Agitating shaft is arranged on the outer wall of second shaft, and the radial direction towards second shaft extends, and edge Second shaft axial outer wall distribution it is multiple;
Blade is inclined on the agitating shaft to be multiple, and the distance between adjacent described blade is not more than 30mm.
The blade is removably set on the agitating shaft, and the mixing component further includes locking member, and being used for will be described Blade is locked at the required position on the agitating shaft.
Multiple agitating shafts are distributed on multiple spaced peripheries of second shaft, second shaft it is every At least one agitating shaft is distributed on a periphery.
Agitating shaft on adjacent circumferential face is located on different vertical planes.
The agitating shaft is at least four, and four agitating shafts are separately positioned on four peripheries of second shaft On, and four agitating shafts are successively set on respectively in the top exterior walls in the Z-direction of second shaft, Y direction On front outer wall on, in the bottom outer wall on the rear portion outer wall in Y direction and in Z-direction.
Angle of the blade tilted set on the agitating shaft is greater than 0 ° and is less than or equal to 20 °;The blade Spacing between the edge and the inboard wall of furnace body of inboard wall of furnace body side is 0.5-10 centimetres.
It is described to wind apparatus be hot-blast stove, the gas outlet of the hot-blast stove is connected to first air inlet by second pipe Mouthful.
It further include air distribution device, the gas outlet of the air distribution device is connected to the second pipe, is used for outside air It introduces in the second pipe, is mixed with the hot gas in the second pipe.
It further include dust-extraction unit, the dust-extraction unit includes cyclone cylinder, and there is the cyclone cylinder the second air inlet, second to go out Port and third gas outlet;
Second air inlet is connected to first gas outlet, for the intracorporal gas of furnace to be introduced the cyclone cylinder It is interior, and to the dedusting of introducing;
Second gas outlet is in communication with the outside, for the gas after dedusting to be discharged;
The third gas outlet is connected to by first pipe with the cavity to wind apparatus, for by the gas after dedusting It is mixed with to the hot gas in wind apparatus, the hot gas of moisture content needed for being formed.
Technical solution provided by the invention, has the advantages that
1. provided by the invention integrate heating and dry drying system, including furnace body, have on furnace body feed inlet, Discharge port, the first air inlet and the first gas outlet;For the charging gear to addition material in furnace body, for collecting in furnace body The material-receiving device of material after drying, agitating device, including first rotating shaft are threaded through in the cavity of the furnace body, have installation Chamber is provided with several heating wire on the inner wall of the installation cavity, and the heating wire generates heat when being powered, and the first rotating shaft is thermally conductive Material is made;Second shaft is set in the first rotating shaft, and venting cavity is formed between the first rotating shaft, described logical Several puff prots, the mixing direction and the leaf of the jet direction of the puff prot and the agitating shaft are provided on air cavity The mixing direction of piece is not overlapped not parallel, the central axes formation 30-50 degree of the jet direction of the puff prot and the feed inlet Angle, the airintake direction of first air inlet with the jet direction of the puff prot is not parallel is not overlapped;Agitating shaft, setting exist On the outer wall of second shaft, the radial direction towards second shaft extends, and along the axial direction of second shaft Outer wall distribution is multiple;Blade is inclined on the agitating shaft, the distance between adjacent described blade is not more than to be multiple 30mm。
This drying device, when material is dried, material is added in the cavity of furnace body charging gear through feed inlet, Meanwhile second shaft rotation drive the second shaft on mixing component along the second shaft it is radial and axial to material carry out not Disconnected stirring, mixing component include the agitating shaft being arranged on the second shaft outer wall, and agitating shaft is towards the radial direction side of the second shaft To extension, multiple agitating shafts are distributed along the axial outer wall of the second shaft;And multiple blades, blade tilted set is in agitating shaft On.Under the rotation of the second shaft, agitating shaft and blade are as the second shaft rotates, and multiple agitating shafts and blade are simultaneously second Shaft is axially and radially stirred material, and in whipping process, blade can comminuting matter, and can be by material It throws in the cavity of furnace body, so that material not only rolls in furnace body, additionally it is possible to be moved in furnace body cavity, increase material and sky The heat convection area of intracavitary thermal current, to improve heat exchange efficiency.Also, several jets are provided on the venting cavity Mouthful, the jet direction of the puff prot is not overlapped injustice with the mixing direction of the mixing direction of the agitating shaft and the blade Row;The airintake direction of first air inlet with the jet direction of the puff prot is not parallel is not overlapped, to increase stirring Dimension, avoid only stir material in one direction so that material is bonded together, influence the loosening degree of material;In addition, Mixing component is while stirring material, additionally it is possible to by crushing material, form the smaller material of particle, further increase material with The area of hot gas heat convection improves the drying efficiency of material;After band material is dried, through falling in material-receiving device under discharge port On, and be transported away.Also, above-mentioned drying device further includes connecting tube, and the venting cavity is gone out by connecting tube with described first Port connection, first gas outlet do not open simultaneously with the puff prot, so that the intracorporal gas of furnace can be by into one Walk Collection utilization.In addition, the central axes of the jet direction of the puff prot and the feed inlet form 30-50 degree angle, that is, The central axes of puff prot and the central axes of the air inlet form 30-50 degree angle, this makes the material come in from feed inlet, energy Eddy flow overturning enough is carried out for the gas that puff prot sprays, improves stirring and drying effect.
In addition, first rotating shaft, is threaded through in the cavity of the furnace body, there is installation cavity, set on the inner wall of the installation cavity Several heating wire are equipped with, the heating wire generates heat when being powered, and the first rotating shaft is made of Heat Conduction Material, so as to utilize position It is heated in the heating wire in first rotating shaft for the gas in the venting cavity, so that heating and dry together as one, First rotating shaft is arranged inside the second shaft, space utilization rate is improved, so that mechanism is simple.
2. provided by the invention integrate heating and dry drying system, blade is removably set on agitating shaft, Mixing component further includes locking member, for blade to be locked at the required position on agitating shaft.Blade moves on agitating shaft, The gap between blade and inboard wall of furnace body is adjusted, to change blade to material stirring and crushing effect and material by blade band Under dynamic, the motion state in furnace body, so that it is determined that material meets the drying demand of different material in the furnace intracorporal residence time.
3. provided by the invention integrate heating and dry drying system, multiple agitating shafts are distributed in the second shaft On multiple spaced peripheries, at least one agitating shaft is distributed on each periphery of the second shaft.When the second shaft When rotation, the second shaft drives the agitating shaft on multiple peripheries and blade to be thereon stirred and crush material, is located at Material on second shaft axial direction can by the periphery of the second shaft of corresponding position agitating shaft and blade stir Mix and stir crushing, it is ensured that material can be stirred and be crushed by blade in furnace body, and the effect for stirring and crushing is more evenly, improves The effect of dry materials.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of top view of the structural representation of embodiment of the drying system provided in embodiment 1;
Fig. 2 is the structural schematic diagram of furnace body in the drying system provided in embodiment 1;
Fig. 3 is the right view of the furnace structure schematic diagram provided in Fig. 2;
Fig. 4 is the cooperation schematic diagram of first rotating shaft and the second shaft.
Description of symbols in figure: 1- furnace body;11- feed inlet;12- discharge port;The first air inlet of 13-;The first outlet of 14- Mouthful;2- charging gear;3- material-receiving device;4- is to wind apparatus;The second shaft of 5-;6- agitating shaft;7- blade;8- locking member;9- is removed Dirt device;The second air inlet of 91-;92- third gas outlet;10- first pipe;15- air distribution device;16- second pipe;17- One shaft;18- puff prot;19- heating wire.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments It can be combined with each other at conflict.
Embodiment 1
Such as Fig. 1, the present embodiment provides a kind of drying systems, including
Furnace body 1, horizontally disposed, feed inlet 11, the discharge port 12 for being added, taking out with cavity, for material;And It is flowed into for hot gas, the first air inlet 13 of outflow, the first gas outlet 14;
Charging gear 2, for material is added in the furnace body 1;
Material-receiving device 3, for collecting the material in the furnace body 1 after drying;
Agitating device, including
First rotating shaft 17 is threaded through in the cavity of the furnace body 1, is had installation cavity, is arranged on the inner wall of the installation cavity There are several heating wire 19, the heating wire generates heat when being powered, and the first rotating shaft is made of Heat Conduction Material;As shown in Figure 4;
Second shaft 5, is set in the first rotating shaft, and venting cavity is formed between the first rotating shaft, described logical Several puff prots 18, the mixing direction and institute of the jet direction of the puff prot and the agitating shaft 6 are provided on air cavity The mixing direction for stating blade 7 is not overlapped not parallel, and the jet direction of the puff prot and the central axes of the feed inlet 11 are formed 30-50 degree angle, the airintake direction of first air inlet 13 with the jet direction of the puff prot is not parallel is not overlapped;
Connecting tube, the venting cavity are connect by connecting tube with first gas outlet 14, first gas outlet 14 and The puff prot does not open simultaneously;
Agitating shaft 6 is arranged on the outer wall of second shaft 5, and the radial direction towards second shaft 5 extends, And it is distributed along the axial outer wall of second shaft 5 multiple;
Blade 7 is inclined on the agitating shaft 6, the distance between adjacent described blade 7 is not more than to be multiple 30mm。
Drying device provided by the invention, including furnace body, have on furnace body feed inlet, discharge port, the first air inlet and First gas outlet;For to the charging gear that material is added in furnace body, the splicing for collecting the material in furnace body after drying to be filled It sets, agitating device, including the second shaft, is threaded through in the cavity of the furnace body, second shaft has venting cavity, described logical Several puff prots, the mixing direction and the leaf of the jet direction of the puff prot and the agitating shaft are provided on air cavity The mixing direction of piece is not overlapped not parallel;Agitating shaft is arranged on the outer wall of second shaft, towards second shaft Radial direction extends, and multiple along the distribution of the axial outer wall of second shaft;Blade is inclined at described to be multiple On agitating shaft, the distance between adjacent described blade is not more than 30mm.
This drying device, when material is dried, material is added in the cavity of furnace body charging gear through feed inlet, Meanwhile second shaft rotation drive the second shaft on mixing component along the second shaft it is radial and axial to material carry out not Disconnected stirring, mixing component include the agitating shaft being arranged on the second shaft outer wall, and agitating shaft is towards the radial direction side of the second shaft To extension, multiple agitating shafts are distributed along the axial outer wall of the second shaft;And multiple blades, blade tilted set is in agitating shaft On.Under the rotation of the second shaft, agitating shaft and blade are as the second shaft rotates, and multiple agitating shafts and blade are simultaneously second Shaft is axially and radially stirred material, and in whipping process, blade can comminuting matter, and can be by material It throws in the cavity of furnace body, so that material not only rolls in furnace body, additionally it is possible to be moved in furnace body cavity, increase material and sky The heat convection area of intracavitary thermal current, to improve heat exchange efficiency.Also, several jets are provided on the venting cavity Mouthful, the jet direction of the puff prot is not overlapped injustice with the mixing direction of the mixing direction of the agitating shaft and the blade Row;The airintake direction of first air inlet with the jet direction of the puff prot is not parallel is not overlapped, to increase stirring Dimension, avoid only stir material in one direction so that material is bonded together, influence the loosening degree of material;In addition, Mixing component is while stirring material, additionally it is possible to by crushing material, form the smaller material of particle, further increase material with The area of hot gas heat convection improves the drying efficiency of material;After band material is dried, through falling in material-receiving device under discharge port On, and be transported away.Also, above-mentioned drying device further includes connecting tube, and the venting cavity is gone out by connecting tube with described first Port connection, first gas outlet do not open simultaneously with the puff prot, so that the intracorporal gas of furnace can be by into one Walk Collection utilization.In addition, the central axes of the jet direction of the puff prot and the feed inlet form 30-50 degree angle, that is, The central axes of puff prot and the central axes of the air inlet form 30-50 degree angle, this makes the material come in from feed inlet, energy Eddy flow overturning enough is carried out for the gas that puff prot sprays, improves stirring and drying effect.
As further preferred embodiment, blade 7 be inclined at the angle on 6 outer wall of agitating shaft be greater than 0 ° and Less than or equal to 20 °.For example, blade 7, which is tilted 1 °, 3 °, 5 °, 7 °, 10 °, 12 °, 15 °, 20 ° etc., is equiangularly arranged in agitating shaft On 6, the blade 7 being inclined on agitating shaft 6 not only plays the role of stirring action, and there are also comminuting matters.Comprehensively consider material Stirring and pulverization are arranged on agitating shaft 6 it is further preferred that blade 7 is tilted 5 ° -10 °, and blade 7 is on agitating shaft 6 Inclined angle is usually no more than 20 °, otherwise can weaken blade 7 to the mixing effect of material.
As further preferred embodiment, blade 7 is removably set on agitating shaft 6, and mixing component further includes lock Tight part 8, for blade 7 to be locked at the required position on agitating shaft 6.Blade 7 moves on agitating shaft 6, adjustment blade 7 with Gap between 1 inner wall of furnace body, to change under blade 7 drives material stirring and crushing effect and material by blade 7, Motion state in furnace body 1, so that it is determined that residence time of the material in furnace body 1, meets the drying demand of different material.
For example, some material particles are smaller, agitating shaft 6 and blade 7 primarily serve stirring action in the drying process, can be with Spacing between 1 inner wall of blade 7 and furnace body is tuned up, so that material there are more spaces in furnace during being driven by blade 7 Movement and rolling, exchange heat with the hot gas in 1 cavity of furnace body in body 1.On the contrary, needing if some material particles are big in stirring Material is crushed simultaneously, to accelerate drying efficiency, reduces residence time of the material in furnace body 1, so that it may by blade 7 with Spacing between 1 inner wall of furnace body is turned down, the crushing effect of reinforced blade 7.
As more preferably preferred embodiment, when the radius of furnace body 1 is 30-40 centimetres, by the close furnace body 1 of blade 7 Spacing between 1 inner wall of edge and furnace body of inner wall side is set as 0.5-10 cm range, such as 0.5 centimetre, 1 centimetre, 2 lis Rice, 3 centimetres, 5 centimetres, 8 centimetres, 10 centimetres etc., so that forming reserved space between 1 inner wall of the edge of blade 7 and furnace body. More preferably range is 4-5 centimetres, still, must actually be determined according to parameters such as the performance of material itself, dry requirements.
It is removably set on the preferred embodiment on agitating shaft 6 as blade 7, blade 7 is plate, and agitating shaft 6 is along axis Line opens up sliding slot on direction, and blade 7 is inserted directly into sliding slot, slides at required position to blade 7, angle needed for tilting When, directly blade 7 is locked on agitating shaft 6 with locking member 8, such as nut or pin, plug-in unit.That is, blade 7 is tiltedly mounted on In the sliding slot of agitating shaft 6.As deformation, blade 7 can also be the plate with intermediate throughholes, and the outer wall of agitating shaft 6 has outer spiral shell Line, blade 7 are set on agitating shaft 6, and fixed with locking member 8, such as nut, pin etc..Further, it is also possible to using the prior art Middle others carriage or update device, move blade 7 on agitating shaft 6, and then fixed by locking member 8.
As preferred embodiment, multiple agitating shafts 6 are distributed in multiple spaced peripheries of the second shaft 5 On, at least one agitating shaft 6 is distributed on each periphery of the second shaft 5.When the rotation of the second shaft 5,5 band of the second shaft It moves the agitating shaft 6 on multiple peripheries and blade thereon 7 is stirred and crushes to material, be located at 5 axial direction side of the second shaft Upward material can by the periphery of the second shaft of corresponding position 5 agitating shaft 6 and blade 7 stir and crush, really Protecting material in furnace body 1 can be stirred and be crushed by blade 7, and the effect for stirring and crushing is more evenly, improves dry materials Effect.
Of agitating shaft 6 is set for the number of agitating shaft 6 is set on each periphery, on preferably each periphery Number is four, and four agitating shafts 6 are located at the quartering point of the periphery, so that the material at co-located place, It is continuously agitated and is crushed by four agitating shafts 6 on the periphery of corresponding section and the blade 7 on agitating shaft 6, between stirring Every time it is shorter, increase material and hot gas contact area, further improve the efficiency that material is dried.Each circumference 6 numbers of agitating shaft on face can also be five, six, seven, eight etc., most preferably, several are stirred in addition to four Axis 6 is evenly distributed at the Along ent of the periphery.
As further preferred embodiment, multiple agitating shafts 6 are distributed in multiple spaced circles of the second shaft 5 On circumferential surface, the spacing for being provided with adjacent two periphery of agitating shaft 6 is preferably 5-15 centimetres, such as 5 centimetres, 6 centimetres, 7 Centimetre, 7.5 centimetres, 8 centimetres, 10 centimetres, 12 centimetres, 15 centimetres etc..Optimal spacing is 7.5-10 centimetres.
As further preferred embodiment, the agitating shaft 6 on adjacent circumferential face is located on different vertical planes.This When, the material in adjacent position is stirred and is crushed by agitating shaft 6, the blade 7 on different vertical planes, adjacent material The direction being stirred is inconsistent, and the motion profile of adjacent material is also inconsistent, further such that material is in mixing in the cavity State will not be bonded together, and improve the loosening degree of material, it is easier to be carried out heat convection with hot gas, be further increased Heat exchange efficiency.
As more preferably preferred embodiment, agitating shaft 6 is four, and four agitating shafts 6 are separately positioned on the second shaft 5 On four peripheries, and four agitating shafts 6 are successively set on respectively in the top exterior walls in the Z-direction of the second shaft 5, Y-axis In bottom outer wall on rear portion outer wall on front outer wall on direction, in Y direction and in Z-direction.Agitating shaft 6 uses This arrangement mode, in 5 rotation process of the second shaft, two agitating shafts 6 in top exterior walls and bottom outer wall are to the second shaft 5 The torque of generation can be balanced mutually, and two agitating shafts 6 on adjacent front outer wall and rear portion outer wall generate the second shaft 5 Torque mutually balance so that the second shaft 5, agitating shaft 6 and blade 7 operate more stable, avoid the generation of the second shaft 5 Oscillation phenomenon improves the service life of drying oven.
As 6 several variant embodiments of agitating shaft, the number of agitating shaft 6 can also be 8,12,16 Etc. namely the quantity of agitating shaft 6 be 4n, wherein n >=1, every four agitating shafts 6 repeat above-mentioned arrangement mode and are arranged second On the outer wall of shaft 5.
Another variant embodiment several as agitating shaft 6, the number of agitating shaft 6 can also for 5,6,7, 8 etc., multiple agitating shafts 6 are separately positioned on the different peripheries of the second shaft 5, and from the radial direction of the second shaft 5, Multiple agitating shafts 6 are distributed on the radial circumference of the second shaft 5, are most preferably the Along ents positioned at 5 radial circumference of the second shaft Place, such as agitating shaft 6 are six, and six agitating shafts 6 are distributed on six peripheries, and from the radial direction of the second shaft 5, six A agitating shaft 6 is located just at six Along ents of the periphery of the second shaft 5, and material is stirred and is crushed multi-facetedly.
In above embodiment, the shape of blade 7 can be rectangular, trapezoidal, fan-shaped, the peach heart etc. other shapes, shape Shape is not especially limited, in addition, the surface of blade 7 can be smooth plane, is also possible to the song with certain radian transition Face or the surface of other moulding are ok.
As the variant embodiment of mixing component, mixing component can also include setting in the axial outer wall of the second shaft 5 On several connecting rods, and several fins in connecting rod, row of the fin in connecting rod are set around connecting rod outer wall Mode for cloth can be rotated similar to the arrangement mode of fan blade in the prior art, fin around the axis direction of connecting rod, And then to be stirred and crush to material.In addition, mixing component can also be that can be realized stirring and crushing in the prior art Other agitating devices or grinding device of material.
As preferred embodiment, further includes to wind apparatus 4, be hot-blast stove to wind apparatus 4, the gas outlet of hot-blast stove is logical Cross second pipe 16 and be connected to the first air inlet 13, the hot gas of hot-blast stove is delivered in the cavity of furnace body 1, make hot gas with Material carries out direct heat convection.As deformation, can also be to wind apparatus 4 in the prior art can be by hot gas through first Air inlet 13 is delivered to the device in the cavity of furnace body 1, for example, extraneous air is thermally formed the heat of required temperature by heater Hot wind is directly pumped into the cavity of furnace body 1 by blower by wind later.
It further include air distribution device 15 as further preferred embodiment, the gas outlet of air distribution device 15 is connected to Two pipelines 16 are mixed for introducing external air into second pipe 16 with the hot gas in second pipe 16.It is mainly at this time It prevents the hot gas temperature being delivered in 1 cavity of furnace body to wind apparatus 4 excessively high, shadow is generated to furnace body 1, agitating shaft 6 and blade 7 It rings, reduces the hot gas of excessive temperature by introducing extraneous cold air in second pipe 16, form the heat of required temperature Gas.
Preferably, air distribution device 15 may include blower, extraneous air is directly pumped into second by blower according to demand In pipeline 16;As long as in the prior art can by extraneous air delivery to second pipe 16 device or equipment all may be used With.Again, it is preferred to which being arranged one in air distribution device 15 is able to detect the volume content that outside air enters in second pipe 16 Detector, in time to enter second pipe 16 in gas flow test, convenient for whether needing to open air distribution device 15.
It further include dust-extraction unit 9 as more preferably preferred embodiment, dust-extraction unit 9 includes cyclone cylinder, and cyclone cylinder has Second air inlet 91, the second gas outlet and third gas outlet 92.Wherein, the second air inlet 91 is connected to the first gas outlet 14, Second gas outlet is in communication with the outside, and third gas outlet 92 is connected to by first pipe 10 with the cavity to wind apparatus 4, for that will remove Gas after dirt is mixed with to the hot gas in wind apparatus 4, the hot gas of moisture content needed for being formed.
Specifically, material in furnace body 1 by drying after, will be in furnace body 1 and after material-heat-exchanging through the second air inlet 91 Gas introduces in cyclone cylinder;Under the action of blower, gas is spinned the movement of rising in cyclone cylinder, in uphill process, The solid particle and liquid contained in gas is got rid of on the inner wall of cyclone cylinder, under the effect of gravity, solid particle With liquid deposition in the bottom of cyclone cylinder;And get rid of solid particle, liquid a part of gas through the second gas outlet directly arrange to Outside air, another part gas are then transported in the cavity to wind apparatus 4 through third gas outlet 92, with give 4 chamber of wind apparatus Intracorporal hot gas is mixed, so that the portion gas after dedusting is recycled, reduces heat required for heating hot gas Amount.
In addition, moisture content is generally in 20%-30% in gas after dedusting, and to the moisture content of hot gas in wind apparatus 4 Almost 0%, the dedusting gas that moisture content is 20%-30% is introduced in wind apparatus 4, is mixed with dry hot gas It closes, to form moisture content as the hot gas of 6%-15%, this hot gas is introduced into the efficiency and effect in furnace body 1 with material-heat-exchanging Fruit, than being more preferable with the efficiency and effect of material-heat-exchanging in 0% dry hot gas introducing furnace body 1 by moisture content.Because of hot gas Contain a small amount of moisture in body, in specific heat capacity of the specific heat capacity that identical environment is lauched greater than air, dry same amount of material, Heat required for water is smaller, to reduce the heat of dried material needs, improves drying efficiency, but aqueous in hot gas Rate is unsuitable excessively high, and excessively high rear heat exchange efficiency can decline instead, and then, the optimum moisture content of hot gas is controlled in 6%-15%.
For charging gear 2, material-receiving device 3 in for the above embodiment.Wherein, charging gear 2 is preferably existing Batcher in technology, such as elevator, and the hopper being mounted on feed inlet 11, the feed opening of elevator is opposite or stretches Enter and is ok into hopper.Material-receiving device 3 be preferably screw conveyor perhaps belt conveyor and chain transfer or One discharging bin is set directly below discharge port 12.
As the preferred of feed inlet 11, discharge port 12, the first air inlet 13 and the first gas outlet 14 opened up on furnace body 1 Embodiment feed inlet 11 is provided on the radial side wall of furnace body 1, discharge port 12 is provided with furnace as shown in Figures 2 and 3 For body 1 in the bottom outer wall in Z-direction, the first air inlet 13 is provided with the furnace body 1 at feed inlet 11 along Z-direction On top exterior walls on, the first gas outlet 14 is provided with furnace body 11 in the top exterior walls in Z-direction, and with discharge port 12 Position is opposite.
In short, the drying system of the present embodiment, when to dry materials, first according to the performance of material, such as moisture content, The parameters such as particle size, degree of drying, to adjust the spacing between 1 inner wall of blade 7 and furnace body, blade 7 tilts on agitating shaft 6 Spacing in the angle of setting and the second shaft 5 between two neighboring periphery;And according to amount, the introducing furnace that material is added The amount of hot gas in body 1 stops the drying journey that how long can reach necessary requirement calculating material in furnace body 1 Degree, and the optimized parameter that each material is dried can be obtained by multiple test, to prepare the dry of relevant parameter Dry furnace and drying system with the drying oven.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or It changes still within the protection scope of the invention.

Claims (6)

1. a kind of drying system for integrating heating with drying, including
Furnace body (1), horizontally disposed, feed inlet (11), the discharge port (12) for being added, taking out with cavity, for material;With And it is flowed into for hot gas, the first air inlet (13) of outflow, the first gas outlet (14);
Charging gear (2), for addition material in the furnace body (1);
Material-receiving device (3), for collecting the material in the furnace body (1) after drying;
First rotating shaft is threaded through in the cavity of the furnace body (1), has installation cavity, if being provided on the inner wall of the installation cavity Dry heating wire, the heating wire generate heat when being powered, and the first rotating shaft is made of Heat Conduction Material;
Second shaft (5), is set in the first rotating shaft, and venting cavity is formed between the first rotating shaft, the ventilation It is provided with several puff prots on chamber, the jet direction of the puff prot and the mixing direction of agitating shaft (6) and blade (7) Mixing direction is not overlapped not parallel, the central axes formation 30-50 degree of the jet direction of the puff prot and the feed inlet (11) Angle, the airintake direction of first air inlet (13) with the jet direction of the puff prot is not parallel is not overlapped;
Connecting tube, the venting cavity are connect by connecting tube with first gas outlet (14), first gas outlet (14) and The puff prot does not open simultaneously;
Agitating shaft (6) is arranged on the outer wall of second shaft (5), and the radial direction towards second shaft (5) is prolonged It stretches, and multiple along the distribution of the axial outer wall of second shaft (5);
Blade (7) is inclined on the agitating shaft (6), the distance between adjacent described blade (7) is not more than to be multiple 30mm。
2. according to claim 1 integrate heating and dry drying system, it is characterised in that: multiple agitating shafts (6) it is distributed on multiple spaced peripheries of second shaft (5), each periphery of second shaft (5) On at least one agitating shaft (6) is distributed with.
3. according to claim 2 integrate heating and dry drying system, it is characterised in that: on adjacent circumferential face Agitating shaft (6) be located on different vertical planes.
4. according to claim 2 integrate heating and dry drying system, it is characterised in that: the agitating shaft It (6) is four, four agitating shafts (6) are separately positioned on four peripheries of second shaft (5), and described in four Agitating shaft (6) is successively set on respectively in the top exterior walls in the Z-direction of second shaft (5), the front in Y direction In bottom outer wall on rear portion outer wall on outer wall, in Y direction and in Z-direction.
5. according to claim 4 integrate heating and dry drying system, it is characterised in that: the blade (7) The angle being inclined on the agitating shaft (6) is greater than 0 ° and is less than or equal to 20 °;The close furnace body (1) of the blade (7) Spacing between the edge of inner wall side and the furnace body (1) inner wall is 0.5-10 centimetres.
6. according to claim 5 integrate heating and dry drying system, it is characterised in that: further include air distribution dress It sets (15), the gas outlet of the air distribution device (15) is connected to second pipe (16), for introducing external air into described second In pipeline (16), mixed with the hot gas in the second pipe (16).
CN201610007062.4A 2016-01-06 2016-01-06 It is a kind of to integrate heating and dry drying system Active CN105546957B (en)

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CN201476494U (en) * 2009-08-27 2010-05-19 北京建都设计研究院有限责任公司 Sand dryer for production line of modified asphalt waterproof rolling material
KR100976378B1 (en) * 2010-06-07 2010-08-18 주식회사 건양기술공사 건축사사무소 Drying of sludge and drying method thereof
CN102464441A (en) * 2010-11-18 2012-05-23 江都苏能电气设备有限公司 Drying device for drying sludge by using flue gas
CN104422265B (en) * 2013-08-29 2017-08-08 双龙集团有限公司 Flat paddle dryer and flat paddle formula drying means
CN204298224U (en) * 2014-12-22 2015-04-29 桐乡市致远环保科技有限公司 Sludge drying device
CN204404745U (en) * 2014-12-25 2015-06-17 甘肃农业大学 Plateau summer vegetable tail dish dish slag drying device

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