CN105621847A

CN105621847A - Cyclic drying device

Info

Publication number: CN105621847A
Application number: CN201610009892.0A
Authority: CN
Inventors: 王良源
Original assignee: Individual
Current assignee: Hunan Hengfei Biopharmaceutical Co.,Ltd.
Priority date: 2016-01-06
Filing date: 2016-01-06
Publication date: 2016-06-01
Anticipated expiration: 2036-01-06
Also published as: CN108929016A; CN105621847B; CN108751660A

Abstract

The invention discloses a cyclic drying device, which comprises a furnace body, a feeding device, a material collecting device, an air supply device and a stirring device, wherein the feeding device is used for adding materials into the furnace body; the material collecting device is used for collecting dried materials in the furnace body; the air supply device is used for introducing external hot gas into the furnace body through a first gas inlet; the stirring device is used for stirring and smashing the materials and comprises a rotating shaft; the rotating shaft is arranged in a cavity of the furnace body in a penetrating way, and is provided with a ventilation cavity; a plurality of gas spraying openings are formed in the ventilation cavity; the gas spraying direction of each gas spraying opening, the stirring direction of a stirring shaft and the stirring direction of blades are not coincident or parallel. During material drying, the hot gas is introduced into the cavity of the furnace body through the first gas inlet; the rotating shaft rotates to drive a stirring assembly arranged on the rotating shaft for continually stirring the materials in the radial direction and the axial direction of the rotating shaft, so that the materials can turn and roll in the axial direction and the radial direction of the rotating shaft in the furnace body; the stirred time of the materials is increased; the convection heat exchange area of the materials and the hot gas is increased.

Description

A kind of circulation drier

Technical field

The present invention relates to heat drying technical field, be specifically related to a kind of drying system.

Background technology

Mud is the product in sewage disposal process, containing substantial amounts of Organic substance, heavy metal and mycete etc., if being not added with follow-up place to comprehend environment is caused severe contamination, therefore, often mud is concentrated and processed, but the moisture percentage in sewage sludge after this processes is generally more than 70%, also needs mud is carried out dried further.

The drying system in prior art, drying sludge adopted, its structure is mostly such as the drying system disclosed in Chinese patent literature CN201058838Y, including body of heater, the batcher being connected with the charging aperture of body of heater, the spray column being connected with the gas outlet of body of heater. Wherein, body of heater includes the power transmission shaft being arranged in body of heater, the some hollow blades being arranged on power transmission shaft outer wall and radially extending, and by passing into high-temperature gas in power transmission shaft, hollow blade and furnace body outer wall is heated so that form hot environment in body of heater. This drying system is in dry materials process, material is in the cavity that inboard wall of furnace body, power transmission shaft and blade outer wall are formed, under the rotation of power transmission shaft, blade stirs material along the direction of drive axis, material is stirred in cavity, and and blade outer wall, between power transmission shaft outer wall and inboard wall of furnace body, carries out heat convection.

But, above-mentioned drying system, material is transmitted the unidirectional blade stirring of axle all the time, rolls along same direction, can reduce the heat-transfer effect in later stage on the one hand, and it is long that material is stirred interlude, it is impossible to fully to material stirring; On the other hand, for the material that some humidity are bigger, causing along the rolling of same direction and bond between material, affect the shatter value of material, be unfavorable for heat convection, cause that heat exchange efficiency is low, drying effect is bad.

Summary of the invention

Therefore, the technical problem to be solved is in that to overcome in prior art the defect that drying system drying efficiency is low, drying effect is bad, thus providing a kind of drying device that can improve drying efficiency and improve drying effect.

For this, the present invention provides a kind of circulation drier, including

Body of heater, horizontally disposed, there is cavity, for material addition, the charging aperture taken out, discharging opening; And for hot gas inflow, the first air inlet flowed out, the first gas outlet;

Charging gear, for adding material in described body of heater;

Material-receiving device, is used for the material after collecting described body of heater inner drying;

Agitating device, including

Rotating shaft, it is located in the cavity of described body of heater, described rotating shaft has venting cavity, described venting cavity is provided with several puff prots, the jet direction of described puff prot is misaligned not parallel with the mixing direction of the mixing direction of described shaft and described blade, it is not parallel misaligned that the jet direction of described puff prot and the axis of described charging aperture form 30-50 degree angle, the airintake direction of described first air inlet and the jet direction of described puff prot;

Connecting tube, described venting cavity is connected with described first gas outlet by connecting tube, and described first gas outlet is opened time different from described puff prot;

Shaft, is arranged on the outer wall of described rotating shaft, and the radial direction towards described rotating shaft extends, and multiple along the axial outer wall distribution of described rotating shaft;

Blade, for multiple, is inclined on described shaft, and the distance between adjacent described blade is not more than 30mm.

Described blade is removably set on described shaft, and described mixing component also includes locking member, for described blade lock fixes on the desired location place on described shaft.

Multiple shafts are distributed on the multiple spaced periphery of described rotating shaft, and on each periphery of described rotating shaft, distribution has at least one shaft.

Shaft on adjacent circumferential face is positioned on different vertical planes.

Described shaft is at least four, four described shafts are separately positioned on four peripheries of described rotating shaft, and four described shafts are successively set in the bottom outer wall on the rear portion outer wall on the anterior outer wall in the top exterior walls in the Z-direction of described rotating shaft, in Y direction, in Y direction and in Z-direction respectively.

Described blade lean is arranged on the angle on described shaft more than 0 �� and less than or equal to 20 ��; Spacing between edge and the described inboard wall of furnace body of the close inboard wall of furnace body side of described blade is 0.5-10 centimetre.

Described is air stove to wind apparatus, and the gas outlet of described air stove is connected to described first air inlet by second pipe.

Also including air distribution device, the gas outlet of described air distribution device is connected to described second pipe, is used for introducing external air in described second pipe, mixes with the hot gas in described second pipe.

Also including dust arrester, described dust arrester includes cyclone cylinder, and described cyclone cylinder has the second air inlet, the second gas outlet and the 3rd gas outlet;

Described second air inlet is connected to described first gas outlet, for being introduced in described cyclone cylinder by the gas in body of heater, and to the dedusting introduced;

Described second gas outlet is in communication with the outside, for being discharged by the gas after dedusting;

Described 3rd gas outlet is connected to the cavity of wind apparatus with described by the first pipeline, for being mixed with to the hot gas in wind apparatus by the gas after dedusting, forms the hot gas of required moisture content.

Technical scheme provided by the invention, has the advantage that

1. circulation drier provided by the invention, including body of heater, body of heater has charging aperture, discharging opening, the first air inlet and the first gas outlet; For to the charging gear adding material in body of heater, for collecting the material-receiving device of the material after body of heater inner drying, agitating device, including rotating shaft, it is located in the cavity of described body of heater, described rotating shaft has venting cavity, and described venting cavity is provided with several puff prots, and the jet direction of described puff prot is misaligned not parallel with the mixing direction of the mixing direction of described shaft and described blade; Shaft, is arranged on the outer wall of described rotating shaft, and the radial direction towards described rotating shaft extends, and multiple along the axial outer wall distribution of described rotating shaft; Blade, for multiple, is inclined on described shaft, and 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 body of heater through charging aperture by charging gear, simultaneously, axis of rotation drives the mixing component in rotating shaft along the radial and axial of rotating shaft, material constantly being stirred, mixing component includes the shaft being arranged on rotating shaft outer wall, and shaft extends towards the radial direction of rotating shaft, and multiple shafts are distributed along the axial outer wall of rotating shaft; And multiple blade, blade lean is arranged on shaft. Under axis of rotation, shaft and blade are all along with axis of rotation, multiple shafts and blade axially and radially material is stirred in rotating shaft simultaneously, and in whipping process, blade can comminuting matter, and material can be thrown in the cavity of body of heater, material is not only rolled in body of heater, can also moving in body of heater cavity, increasing material and the heat convection area of thermal current in cavity, thus improving heat exchange efficiency. Further, described venting cavity being provided with several puff prots, the jet direction of described puff prot is misaligned not parallel with the mixing direction of the mixing direction of described shaft and described blade; The airintake direction of described first air inlet is not parallel misaligned with the jet direction of described puff prot, thus adding the dimension of stirring, it is to avoid only stir material in one direction so that material is bonded together, and affects the loosening degree of material; Additionally, mixing component is while stirring material, additionally it is possible to by crushing material, form the material that granule is less, increase the area of material and hot gas heat convection further, improve the drying efficiency of material; After band material is dried, drops on material-receiving device under discharging opening, and be transferred away. Further, above-mentioned drying device also includes connecting tube, and described venting cavity is connected with described first gas outlet by connecting tube, and described first gas outlet is opened time different from described puff prot, so that the gas in body of heater can by further Collection utilization. Additionally, the axis of the jet direction of described puff prot and described charging aperture forms 30-50 degree angle, namely, the axis of the axis of puff prot and described air inlet forms 30-50 degree angle, this makes the material come in from charging aperture, eddy flow upset can be carried out for the gas of puff prot ejection, improve stirring and drying effect.

2. circulation drier provided by the invention, blade is removably set on shaft, and mixing component also includes locking member, for blade lock fixes on the desired location place on shaft. Blade moves on shaft, adjusts the gap between blade and inboard wall of furnace body, to change blade to material stirring and crushing effect, and material is driven down by blade, kinestate in body of heater, so that it is determined that the time of staying that material is in body of heater, meets the dry demand of different material.

3. circulation drier provided by the invention, multiple shafts are distributed on the multiple spaced periphery of rotating shaft, and on each periphery of rotating shaft, distribution has at least one shaft. When the spindle is rotated, rotating shaft drives the shaft on multiple peripheries and blade thereon material is stirred and pulverizes, it is positioned at the material on rotating shaft axial direction to be stirred by the shaft on the periphery of corresponding position rotating shaft and blade and pulverize, guarantee that in body of heater, material all can be stirred by blade and pulverize, and the effect stirred and pulverize is evenly, improves the effect of dry materials.

Accompanying drawing explanation

In order to be illustrated more clearly that the specific embodiment of the invention or technical scheme of the prior art, the accompanying drawing used required in detailed description of the invention or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the top view of the structural representation of a kind of embodiment of the drying system of offer in embodiment 1;

Fig. 2 is the structural representation of body of heater in the drying system of offer in embodiment 1;

The right view of the Fig. 3 furnace binding schematic diagram for providing in Fig. 2;

Description of reference numerals in figure: 1-body of heater; 11-charging aperture; 12-discharging opening; 13-the first air inlet; 14-the first gas outlet; 2-charging gear; 3-material-receiving device; 4-is to wind apparatus; 5-rotating shaft; 6-shaft; 7-blade; 8-locking member; 9-dust arrester; 91-the second air inlet; 92-the 3rd gas outlet; 10-the first pipeline; 15-air distribution device; 16-second pipe.

Detailed description of the invention

Below in conjunction with accompanying drawing, technical scheme is clearly and completely described, it is clear that described embodiment is a part of embodiment of the present invention, rather than whole embodiments. Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.

As long as just can be combined with each other additionally, technical characteristic involved in invention described below difference embodiment does not constitute conflict each other.

Embodiment 1

Such as Fig. 1, the present embodiment provides a kind of drying system, including

Body of heater 1, horizontally disposed, there is cavity, for material addition, the charging aperture 11 taken out, discharging opening 12; And first air inlet the 13, first gas outlet 14 flowing into for hot gas, flowing out;

Charging gear 2, for adding material in described body of heater 1;

Material-receiving device 3, is used for the material after collecting described body of heater 1 inner drying;

Agitating device, including

Rotating shaft 5, it is located in the cavity of described body of heater 1, described rotating shaft 5 has venting cavity, described venting cavity is provided with several puff prots, the jet direction of described puff prot is misaligned not parallel with the mixing direction of the mixing direction of described shaft 6 and described blade 7, it is not parallel misaligned that the jet direction of described puff prot and the axis of described charging aperture 11 form 30-50 degree angle, the airintake direction of described first air inlet 13 and the jet direction of described puff prot;

Connecting tube, described venting cavity is connected with described first gas outlet 14 by connecting tube, and described first gas outlet 14 is opened time different from described puff prot;

Shaft 6, is arranged on the outer wall of described rotating shaft 5, and the radial direction towards described rotating shaft 5 extends, and multiple along the axial outer wall distribution of described rotating shaft 5;

Blade 7, for multiple, is inclined on described shaft 6, and the distance between adjacent described blade 7 is not more than 30mm.

Drying device provided by the invention, including body of heater, body of heater has charging aperture, discharging opening, the first air inlet and the first gas outlet; For to the charging gear adding material in body of heater, for collecting the material-receiving device of the material after body of heater inner drying, agitating device, including rotating shaft, it is located in the cavity of described body of heater, described rotating shaft has venting cavity, and described venting cavity is provided with several puff prots, and the jet direction of described puff prot is misaligned not parallel with the mixing direction of the mixing direction of described shaft and described blade; Shaft, is arranged on the outer wall of described rotating shaft, and the radial direction towards described rotating shaft extends, and multiple along the axial outer wall distribution of described rotating shaft; Blade, for multiple, is inclined on described shaft, and the distance between adjacent described blade is not more than 30mm.

As further preferred embodiment, blade 7 is inclined at the angle on shaft 6 outer wall for more than 0 �� and less than or equal to 20 ��. Such as, blade 7 is tilted 1 ��, 3 ��, 5 ��, 7 ��, 10 ��, 12 ��, 15 ��, 20 �� etc. and is equiangularly arranged on shaft 6, be inclined at the blade 7 on shaft 6 and do not only have stirring action and also have the effect of comminuting matter. Considering stirring and the pulverization of material, be arranged on shaft 6 it is further preferred that blade 7 tilts 5 ��-10 ��, blade 7 is usually no more than 20 �� in the angle of shaft 6 surface thereof, otherwise can weaken the blade 7 mixing effect to material.

As further preferred embodiment, blade 7 is removably set on shaft 6, and mixing component also includes locking member 8, for blade 7 is locked in the desired location place on shaft 6. Blade 7 moves on shaft 6, adjust the gap between blade 7 and body of heater 1 inwall, to change blade 7 to material stirring and crushing effect, and material is driven down by blade 7, kinestate in body of heater 1, so that it is determined that the time of staying that material is in body of heater 1, meet the dry demand of different material.

Such as, some material particles is less, in dry run, shaft 6 and blade 7 primarily serve stirring action, spacing between blade 7 and body of heater 1 inwall can be tuned up, make material by blade 7 drive process, more space is had to move in body of heater 1 and roll, with the hot gas heat exchange in body of heater 1 cavity. On the contrary, if some material particles is big, it is necessary to while stirring, material is pulverized, accelerate drying efficiency, reduce the material time of staying in body of heater 1, it is possible to the spacing between blade 7 and body of heater 1 inwall turned down, the crushing effect of reinforced blade 7.

As more preferably preferred embodiment, when the radius of body of heater 1 is 30-40 centimetre, spacing between the edge of the close body of heater 1 inwall side of blade 7 and body of heater 1 inwall is set to 0.5-10 cm range, such as 0.5 centimetre, 1 centimetre, 2 centimetres, 3 centimetres, 5 centimetres, 8 centimetres, 10 centimetres etc., so that forming headspace between the edge of blade 7 and body of heater 1 inwall. What be more highly preferred to ranges for 4-5 centimetre, but, actual must determine according to parameters such as the performance of material itself, dry requirements.

It is removably set on the preferred implementation on shaft 6 as blade 7, blade 7 is plate, shaft 6 in the axial direction on offer chute, blade 7 is inserted directly in chute, treat that blade 7 slides into desired location place, when tilting required angle, directly with locking member 8, blade 7 is locked on shaft 6, for instance nut or pin, plug-in unit. That is, blade 7 is inclined and mounted in the chute of shaft 6. As deformation, blade 7 can also be the plate with intermediate throughholes, and the outer wall of shaft 6 has external screw thread, and blade 7 is set on shaft 6, and fixes with locking member 8, for instance nut, pin etc. Further, it is also possible to other carriage or update device in employing prior art, make blade 7 move on shaft 6, and then the part 8 that is locked is fixed.

As preferred embodiment, multiple shafts 6 are distributed on the multiple spaced periphery of rotating shaft 5, and on each periphery of rotating shaft 5, distribution has at least one shaft 6. When rotating shaft 5 rotates, rotating shaft 5 drives the shaft 6 on multiple periphery and blade thereon 7 material is stirred and pulverizes, it is positioned at the material on rotating shaft 5 axial direction to be stirred by the shaft 6 on the periphery of corresponding position rotating shaft 5 and blade 7 and pulverize, guarantee that in body of heater 1, material all can be stirred by blade 7 and pulverize, and the effect stirred and pulverize is evenly, improves the effect of dry materials.

For the number that shaft 6 is set on each periphery, the number arranging shaft 6 on preferred each periphery is four, four shafts 6 lay respectively at the fourth class branch place of this periphery, so that the material at co-located place, it is continuously agitated by four shafts 6 on the periphery of corresponding section and the blade 7 on shaft 6 and pulverizes, stirring interlude is shorter, increases the contact area of material and hot gas, improves the efficiency that material is dried further. Shaft 6 number on each periphery is except four, it is also possible to is five, six, seven, eight etc., best, several shafts 6 is evenly distributed on the Along ent place of this periphery.

As further preferred embodiment, multiple shafts 6 are distributed on the multiple spaced periphery of rotating shaft 5, the spacing of adjacent two periphery being provided with shaft 6 is preferably 5-15 centimetre, for instance 5 centimetres, 6 centimetres, 7 centimetres, 7.5 centimetres, 8 centimetres, 10 centimetres, 12 centimetres, 15 centimetres etc. Best spacing is 7.5-10 centimetre.

As further preferred embodiment, the shaft 6 on adjacent circumferential face is positioned on different vertical planes. Now, the material being in adjacent position is stirred by the shaft 6 on different vertical planes, blade 7 and pulverizes, the direction that adjacent material is stirred is inconsistent, the movement locus of adjacent material is also inconsistent, further such that material is in admixture in cavity, will not be bonded together, improve the loosening degree of material, it is easier to carry out heat convection with hot gas, improves heat exchange efficiency further.

As more preferably preferred embodiment, shaft 6 is four, four shafts 6 are separately positioned on four peripheries of rotating shaft 5, and four shafts 6 are successively set in the bottom outer wall on the rear portion outer wall on the anterior outer wall in the top exterior walls in the Z-direction of rotating shaft 5, in Y direction, in Y direction and in Z-direction respectively. Shaft 6 adopts this arrangement mode, in rotating shaft 5 rotation process, the moment that top exterior walls produces with two shaft 6 countershafts 5 in bottom outer wall can balance mutually, the moment that adjacent anterior outer wall produces with two shaft 6 countershafts 5 on the outer wall of rear portion balances mutually, make the more steady of rotating shaft 5, shaft 6 and blade 7 running, avoid rotating shaft 5 to vibrate, improve the service life of drying oven.

As a variant embodiment of shaft 6 number, the number of shaft 6 can also be 8,12,16 etc., namely the quantity of shaft 6 is 4n, wherein n >=1, and every four shafts 6 repeat above-mentioned arrangement mode and are arranged on the outer wall of rotating shaft 5.

Another variant embodiment as shaft 6 number, the number of shaft 6 can also be 5, 6, 7, 8 etc., multiple shafts 6 are separately positioned on the different peripheries of rotating shaft 5, and observe from the radial direction of rotating shaft 5, multiple shafts 6 are distributed on the radial circumference of rotating shaft 5, it is in the Along ent place of rotating shaft 5 radial circumference best, such as shaft 6 is six, six shafts 6 are distributed on six peripheries, and observe from the radial direction of rotating shaft 5, six shafts 6 are located just at six Along ent places of the periphery of rotating shaft 5, material it is stirred multi-facetedly and pulverizes.

In above-mentioned embodiment, the shape of blade 7 can be square, trapezoidal, fan-shaped, the Fructus Persicae heart etc. other shapes, and its shape is not especially limited, in addition, the surface of blade 7 can be smooth plane, it is also possible to be the curved surface with certain radian transition, or the surface of other moulding can.

Variant embodiment as mixing component, mixing component can also include the some connecting rods being arranged on the axial outer wall of rotating shaft 5, and the some fins in connecting rod it are arranged on around connecting rod outer wall, fin arrangement mode in connecting rod can the arrangement mode of similar prior art wind fan leaf, fin can rotate around the axis direction of connecting rod, and then material is stirred and pulverizes. Additionally, mixing component can also be other agitating devices or the reducing mechanism that are capable of stirring and comminuting matter in prior art.

As preferred embodiment, also including to wind apparatus 4, be air stove to wind apparatus 4, the gas outlet of air stove is connected to the first air inlet 13 by second pipe 16, the hot gas of air stove is delivered in the cavity of body of heater 1, makes hot gas and material carry out direct heat convection. As deformation, can also be that hot gas can be delivered to the device in the cavity of body of heater 1 through the first air inlet 13 by prior art to wind apparatus 4, such as, extraneous air is thermally formed temperature required hot blast by heater, afterwards by the blower fan cavity by direct for hot blast suction body of heater 1.

As further preferred embodiment, also including air distribution device 15, the gas outlet of air distribution device 15 is connected to second pipe 16, is used for introducing external air in second pipe 16, mixes with the hot gas in second pipe 16. Now mainly prevent the hot gas temperature being delivered in body of heater 1 cavity to wind apparatus 4 too high, body of heater 1, shaft 6 and blade 7 are produced impact, reduce the hot gas of excessive temperature by introducing extraneous cold air in second pipe 16, form temperature required hot gas.

As preferably, air distribution device 15 can include blower fan, and blower fan is by the extraneous direct suction second pipe 16 of air according to demand; As long as or extraneous air can be delivered to the device in second pipe 16 by prior art or equipment can. Again, it is preferred to arrange the detector of a volume content that can detect in outside air entrance second pipe 16 in air distribution device 15, in time the gas flow entered in second pipe 16 is tested, it is simple to the need of opening air distribution device 15.

As more preferably preferred embodiment, also including dust arrester 9, dust arrester 9 includes cyclone cylinder, and cyclone cylinder has the second air inlet the 91, second gas outlet and the 3rd gas outlet 92. Wherein, second air inlet 91 is connected to the first gas outlet 14, and the second gas outlet is in communication with the outside, and the 3rd gas outlet 92 is connected with the cavity to wind apparatus 4 by the first pipeline 10, for being mixed with to the hot gas in wind apparatus 4 by the gas after dedusting, form the hot gas of required moisture content.

Specifically, after material is dried in body of heater 1, through the second air inlet 91, the gas in body of heater 1 and after material-heat-exchanging is introduced in cyclone cylinder; Under the effect of blower fan, gas spin in cyclone cylinder rise motion, in uphill process, the solid particle contained in gas and liquid are got rid of on the internal face of cyclone cylinder, under the effect of self gravitation, solid particle and liquid deposition are in the bottom of cyclone cylinder; And get rid of solid particle, liquid a part of gas through the second gas outlet directly discharged to outside air, another part gas is then transported in the cavity to wind apparatus 4 through the 3rd gas outlet 92, mix with to the hot gas in wind apparatus 4 cavity, portion gas after dedusting is recycled, reduces the heat required for heating hot gas.

In addition, in gas after dedusting, moisture content is typically in 20%-30%, and it is almost 0% to the moisture content of hot gas in wind apparatus 4, the dedusting gas that moisture content is 20%-30% is introduced in wind apparatus 4, mix with dry hot gas, to form the hot gas that moisture content is 6%-15%, this hot gas is introduced in body of heater 1 with the efficiency of material-heat-exchanging and effect, than the dry hot gas that moisture content is 0% introduced in body of heater 1 with the efficiency of material-heat-exchanging and better effects if. Because, containing a small amount of moisture in hot gas, under equivalent environment, specific heat of water holds the specific heat capacity more than air, and during dry same amount of material, the heat required for water is less, thus reducing the heat that dried material needs, improving drying efficiency, but the moisture content in hot gas is unsuitable too high, too high rear heat exchange efficiency can decline on the contrary, then, the optimum moisture content of hot gas controls at 6%-15%.

For the charging gear 2 in above-mentioned embodiment, material-receiving device 3. Wherein, charging gear 2 is preferably batcher of the prior art, for instance elevator, and is arranged on the hopper on charging aperture 11, and the feed opening of elevator faces toward or extend in hopper can. Material-receiving device 3 is preferably conveying worm, or belt conveyor and chain transfer, or is directly arranged below a discharging bin at discharging opening 12.

As the charging aperture 11 offered on body of heater 1, discharging opening the 12, first air inlet 13 and the first gas outlet 14 preferred embodiment, as shown in Figures 2 and 3, charging aperture 11 is opened on body of heater 1 sidewall radially, discharging opening 12 be opened in body of heater 1 in Z-direction bottom outer wall on, first air inlet 13 is opened in the top exterior walls in Z-direction of the body of heater 1 near charging aperture 11 place, first gas outlet 14 is opened in the body of heater 11 top exterior walls in Z-direction, and relative with the position of discharging opening 12.

Improving as one, it is also possible to arrange the first rotating shaft, be located in the cavity of described body of heater 1, have installation cavity, the inwall of described installation cavity is provided with some heating wire, the heating during energising of described heating wire, described first rotating shaft is that Heat Conduction Material is made;

First rotating shaft is set in the venting cavity of rotating shaft 5, forms air cavity, described rotating shaft 5 is provided with several puff prots between the first rotating shaft and rotating shaft 5. The heating during energising of described heating wire, described first rotating shaft is that Heat Conduction Material is made, such that it is able to utilizing the heating wire being positioned at the first rotating shaft is the gas heating being positioned at described venting cavity, so that heating and dry integrate, first rotating shaft is arranged on inside rotating shaft, improve space availability ratio so that mechanism is simple.

In a word, the drying system of the present embodiment, when to dry materials, first the performance according to material, the parameters such as such as moisture content, size, degree of drying, adjust the spacing between blade 7 and body of heater 1 inwall, the angle that blade 7 is arranged, and spacing between adjacent two peripheries in rotating shaft 5 in shaft 6 surface thereof; And the amount according to the hot gas added in the amount of material, introducing body of heater 1, calculate material in body of heater 1, stop the degree of drying that how long just can reach necessary requirement, and test repeatedly can be passed through, draw the optimized parameter that each material is dried, thus preparing the drying oven of relevant parameter and there is the drying system of this drying oven.

Obviously, above-described embodiment is only for clearly demonstrating example, and is not the restriction to embodiment. For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description. Here without also cannot all of embodiment be given exhaustive. And the apparent change thus extended out or variation are still among the protection domain of the invention.

Claims

1. a circulation drier, including

Body of heater (1), horizontally disposed, there is cavity, for material addition, the charging aperture (11) taken out, discharging opening (12); And for hot gas inflow, the first air inlet (13) flowed out, the first gas outlet (14);

Charging gear (2), for adding material in described body of heater (1);

Material-receiving device (3), is used for the material after collecting described body of heater (1) inner drying;

Rotating shaft (5), it is located in the cavity of described body of heater (1), described rotating shaft (5) has venting cavity, described venting cavity is provided with several puff prots, the jet direction of described puff prot is misaligned not parallel with the mixing direction of the mixing direction of described shaft (6) and described blade (7), it is not parallel misaligned that the jet direction of described puff prot and the axis of described charging aperture (11) form 30-50 degree angle, the airintake direction of described first air inlet (13) and the jet direction of described puff prot;

Connecting tube, described venting cavity is connected with described first gas outlet (14) by connecting tube, and described first gas outlet (14) is opened time different from described puff prot;

Shaft (6), is arranged on the outer wall of described rotating shaft (5), and the radial direction towards described rotating shaft (5) extends, and multiple along the axial outer wall distribution of described rotating shaft (5);

Blade (7), for multiple, is inclined on described shaft (6), and the distance between adjacent described blade (7) is not more than 30mm.

2. circulation drier according to claim 1, it is characterized in that: described blade (7) is removably set on described shaft (6), described mixing component also includes locking member (8), for described blade (7) is locked in the desired location place on described shaft (6).

3. the circulation drier according to Claims 2 or 3, it is characterized in that: multiple shafts (6) are distributed on the multiple spaced periphery of described rotating shaft (5), on each periphery of described rotating shaft (5), distribution has at least one shaft (6).

4. circulation drier according to claim 4, it is characterised in that: the shaft (6) on adjacent circumferential face is positioned on different vertical planes.

5. the circulation drier according to any one of claim 2-4, it is characterized in that: described shaft (6) is at least four, four described shafts (6) are separately positioned on four peripheries of described rotating shaft (5), and four described shafts (6) are successively set in the bottom outer wall on the rear portion outer wall on the anterior outer wall in the top exterior walls in the Z-direction of described rotating shaft (5), in Y direction, in Y direction and in Z-direction respectively.

6. the circulation drier according to any one of claim 2-5, it is characterised in that: described blade (7) is inclined at the angle on described shaft (6) more than 0 �� and less than or equal to 20 ��; Spacing between edge and described body of heater (1) inwall of close body of heater (1) the inwall side of described blade (7) is 0.5-10 centimetre.

7. the circulation drier according to any one of claim 1-6, it is characterized in that: described is air stove to wind apparatus (4), the gas outlet of described air stove is connected to described first air inlet (13) by second pipe (16).

8. circulation drier according to claim 7, it is characterized in that: also include air distribution device (15), the gas outlet of described air distribution device (15) is connected to described second pipe (16), for introducing external air in described second pipe (16), mix with the hot gas in described second pipe (16).