CN1172150C - Fluidized bed type dryer and drying method - Google Patents
Fluidized bed type dryer and drying method Download PDFInfo
- Publication number
- CN1172150C CN1172150C CNB021278989A CN02127898A CN1172150C CN 1172150 C CN1172150 C CN 1172150C CN B021278989 A CNB021278989 A CN B021278989A CN 02127898 A CN02127898 A CN 02127898A CN 1172150 C CN1172150 C CN 1172150C
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- China
- Prior art keywords
- main body
- apparatus main
- handled thing
- fluosolids
- fluidized bed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/04—Agitating, stirring, or scraping devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
Abstract
This invention provides a fluidized-bed dryer. Said device dries the treating object B supplied in a device body 1 by forming a fluidized bed C by flowing the treating object B by flowing gas A. In the device body 1, an agitating means 13 composed of an agitating blade 12 rotatable by a rotary shaft 11, and agitating the treating object B in the fluidized bed C is provided under a supply port of the treating object B in the device body 1. Said device capable of preventing the situation such as hindering a flow since a treating object becomes a mass shape even when drying the treating object having the large moisture content, and the treating object strong in an adhesive property.
Description
Technical field
The present invention relates to a kind of fluidized bed type dryer and drying means, is to make the handled thing that supplies in the apparatus main body form fluosolids and make its drying with flowing gas.
Background technology
Fluidized bed type dryer, be to spray temperature flowing gas (being generally air) at a high speed and the handled thing that supplies in the apparatus main body is flowed and the formation fluosolids from the dispersion plate that is located at the bottom in the apparatus main body, and handled thing is disperseed, contact with the flowing gas of high temperature simultaneously and make the device of its drying.Such fluidized bed type dryer, its moving part is few and simple in structure, mainteinance repair and operation are all easy, and device can form small-sized and floor space is little, low price and bigger than the heat capacity coefficient of other drying device, as can to adapt to the handled thing of large-scale granularity and proportion drying, therefore can be used for the drying processing of various handled things.
But, in such fluidized bed type dryer, in order handled thing to be disperseed and drying with the mobile of above-mentioned flowing gas, when drying was handled the handled thing that water content is bigger or adhesiveness is strong, the handled thing that can supply with to some extent can not disperse fully and the formation of condensing has only bulk that the surface has been dried, and intactly sinks to problem bottom the fluosolids.And, in case such handled thing is the block fluosolids bottom that sinks to being trapped in, not only hinder the ejection of flowing gas, can't make flowing of handled thing flow and do not form fluosolids by flowing gas from body, therefore, the danger that can not make the handled thing drying is arranged.On the other hand, in order to address this problem, the block handled thing that is trapped in the fluosolids bottom is moved, but because the normal particle that flows when the air quantity of this flowing gas is excessive, at fluosolids just can disperse, therefore by such increase air quantity block handled thing being moved also has certain limit.
The present invention is under such background and the invention of carrying out, its purpose is to provide a kind of fluidized bed type dryer, even during the strong handled thing of handled thing that dry water content is big or adhesiveness, the air quantity that does not increase flowing gas also can prevent the situation that handled thing forms bulk and hinders it to flow.
Summary of the invention
Reach this purpose for addressing the above problem, drying device of the present invention, be the handled thing that supplies in the apparatus main body is flowed and to form fluosolids and make its dry fluidized bed type dryer with flowing gas, it is characterized in that, at the rabbling mechanism that is provided with stir process thing in fluosolids on the apparatus main body, and the pressure detecting mechanism of fluidization gas pressure in flowing gas pressure in the checkout gear main body and the fluosolids, and this fluidized bed type dryer is provided with the calculating controlling organization; Pressure reduction between the pressure that supplies to the flowing gas in this apparatus main body that is detected according to pressure detecting mechanism and the pressure of the flowing gas in the fluosolids, by calculating controlling organization, can control the amount that remains in the apparatus main body and form the handled thing of fluosolids.Drying means of the present invention in addition is to make the handled thing mobile formation fluosolids that supplies in the apparatus main body and make its dry drying means with flowing gas, it is characterized in that, on one side one side stir process thing makes its drying in fluosolids; In the bottom that is positioned at the fluosolids below the inlet of this this handled thing of apparatus main body supply, stir the handled thing that supplies in the apparatus main body; According to the pressure reduction between the pressure of the flowing gas in pressure that supplies to the flowing gas in this apparatus main body and the fluosolids, control remains in the apparatus main body and forms the amount of the handled thing of fluosolids.Therefore, in such fluidized bed type dryer and drying means, supply to the handled thing on the fluosolids in the said apparatus main body, even such as surface just be dried form block, but also can make the broken and dispersion of block owing to stirring with above-mentioned rabbling mechanism, simultaneously the dry tack free of this piece part can expose its inside because of flowing gas and the handled thing particle fragmentation of flowing, this part that exposes is again by drying flowing gas and fragmentation, in the process that repeats like this by refinement, even so do not increase the flow of flowing gas, it is air quantity, handled thing can not be bulk yet and be deposited on fluosolids bottom and be deposited on the dispersion plate, therefore can not hinder the ejection of flowing gas yet, and the handled thing of being supplied with is flowed fully and be dried from dispersion plate.At this moment, can sink the below of the handled thing inlet in apparatus main body owing to become block handled thing, so, in drying device of the present invention, above-mentioned rabbling mechanism has been located at the bottom that is positioned at the fluosolids below the handled thing inlet of this apparatus main body, and in drying means of the present invention, be that the interior handled thing of handle assembly main body stirs in the bottom that is positioned at the above-mentioned fluosolids below this handled thing inlet of this apparatus main body, therefore can the block handled thing that form is broken fully.
In addition, this rabbling mechanism is rotating stirring vane to be installed on the rotating shaft in inserting the said apparatus main body constitute its simple structure.Particularly in this case, if be arranged to make above-mentioned rotating shaft can extend to the bottom from the top of above-mentioned fluosolids, seal construction that then can also the simplification device main body.And in this case, be trapped in the lower end side of rotating shaft easily because handled thing is not stirred, therefore the blade of broach shape is set by the lower end side at this rotating shaft, the broken on one side one side of handled thing is discharged from the rotating shaft lower end side.And then, above-mentioned stirring vane is designed to the face that tilts upward to the direction of rotation rear side towards the face of this direction of rotation side, simultaneously the face towards the direction of rotation rear being set as vertical cross section is right-angle triangle, like this, then by the face that tilts to direction of rotation can be on one side the broken more fully dispersion flows upward on one side of block handled thing, the while can also prevent the face adhesion process thing towards the direction of rotation rear side.
On the other hand, in drying device of the present invention, by according to the pressure of the above-mentioned flowing gas of supplying with to this apparatus main body and the pressure reduction of the flowing gas pressure in the above-mentioned fluosolids, control remains on the amount of the handled thing of the formation fluosolids in the apparatus main body, simultaneously in drying means of the present invention, by pressure reduction according to above-mentioned flowing gas pressure of supplying with to this apparatus main body and the flowing gas pressure in above-mentioned fluosolids, control remains on the amount of the handled thing of the formation fluosolids in the apparatus main body, can be implemented in the stabilisation of the fluosolids that forms in this apparatus main body, can guarantee that handled thing is dried to the processing of specified moisture content.At this moment, on the handled thing outlet of said apparatus main body, the vibratory conveyer that connects output mechanism, and according to the handled thing discharge rate of above-mentioned pressure reduction adjustment with this output mechanism, control the amount that remains in the apparatus main body and form the above-mentioned handled thing of fluosolids with this, like this, both can control the recoverable amount of this handled thing easily, also can prevent from for example to compare, form to the quantity delivered of the handled thing of apparatus main body the situation of bulk because of the change of this handled thing water content with adjustment.In addition,, can guarantee that then the volume of the top side that forms on this thermopnore top increases, and can reduce the amount of the handled thing of discharging with flowing gas from apparatus main body if make the top of the cross-sectional area in the said apparatus main body bigger than the bottom of above-mentioned fluosolids.And, on the said apparatus main body, if having can be in this apparatus main body the wiper mechanism of jet cleaning liquid, then when this drying device end of run or the kind of handled thing when changing, can easily carry out the cleaning in this apparatus main body.
Description of drawings
Fig. 1 is that (position of inlet 5 and rabbling mechanism 13 is simplified one embodiment of the invention generalized schematic.)。
Fig. 2 is the longitudinal sectional drawing of the apparatus main body 1 of embodiment shown in Figure 1.
Fig. 3 is the Y-Y transverse cross-sectional view of Fig. 2.
Fig. 4 is the enlarged side view of the rabbling mechanism that embodiment possessed 13 shown in Figure 1.
Fig. 5 is the vertical view of seeing from the top from the axes O direction of rabbling mechanism 13 shown in Figure 4.
Fig. 6 is the Z-Z profile of Fig. 5.
Fig. 7 is the side view of the stirring vane 22 of rabbling mechanism 13 variation.
Fig. 8 is upward view, (b) side view that (a) of the broach shape blade 23 of variation sees from the below of axes O direction.
Fig. 9 is the variation transverse cross-sectional view of apparatus main body 1.
Among the figure: 1-apparatus main body, 2-dispersion plate, 3-compression chamber, the feeding machanism of 4-handled thing B, 5-inlet, 6-outlet, the output mechanism of the dry handled thing F of 8-, 11-rotating shaft, 12, the 22-stirring vane, the 13-rabbling mechanism, 16A-inclined plane, 16B-vertical plane, 17,23-broach shape blade, the 18-wiper mechanism, 19-supply pressure testing agency, 20-fluidisation pressure detecting mechanism, 21-calculates controlling organization, the A-flowing gas, B-handled thing, C-fluosolids, the F-drying handled thing, the H-washing lotion, the rotation of O-rotating shaft 11, the direction of rotation of T-rotating shaft 11.
The specific embodiment
Fig. 1 to Fig. 6 is the schematic diagram of the embodiment of fluidized bed type dryer of the present invention.Wherein Fig. 1 is the generalized schematic of the fluidized bed type dryer and the peripheral device thereof of present embodiment, as shown in Figure 1, in the apparatus main body 1 of this fluidized bed type dryer, be horizontally disposed with dispersion plate 2 in its underpart, downside at this dispersion plate 2 is formed with the compression chamber 3 that supplies with flowing gas (high temperature air) A, and on the sidewall 1A of the apparatus main body 1 of dispersion plate 2 upsides, be provided with the inlet 5 that is connected with the handled thing B feed mechanism 4 of screw conveyor etc., supply to handled thing B in the apparatus main body 1 from this inlet 5, by the 3 above-mentioned flowing gas A that eject by dispersion plate 2 flow while disperseing from the compression chamber, to form fluosolids C in this apparatus main body 1 on dispersion plate 2.And, this fluosolids C, the E of thin layer portion (top side) formation that the handled thing B on the D of the dense layer portion of being flowed with high concentration relatively by the handled thing B of its bottom side (dispersion plate 2 sides) (dense bed portion) and its top swims with low concentration.
At this moment, the apparatus main body 1 of present embodiment, along the cross section of its inner horizontal direction as shown in Figure 3, be that one distolateral (left side of Fig. 1 to Fig. 3) is semicircle shape and another distolateral (right side of Fig. 1 to Fig. 3) and this semicircle smooth connection and the shape of circle behind the place ahead that is rectangle of this another distolateral extension, surpass dispersion plate 2 upward from the lower end of this apparatus main body 1 of comprising above-mentioned compression chamber 3, to mid-height that is equivalent to apparatus main body 1 or above height, all the time be formed extended at both sides such cross sectional shape with certain size to surpassing dispersion plate 2 tops, in addition, from the top more than this, by towards the top, and the outside that all makes progress in full week of top sidewall 1A tilts, and being kept with the constant and sectional area of above-mentioned shape similar shapes, its cross section extends with increasing, extend upward with certain size shape with cross section so then than the big circle expansion in bottom, then with above-mentioned opposite, upwards inboard tilt of sidewall 1A and form the size shape that its cross section and above-mentioned bottom slightly are equal to, toroidal ground arrives horizontal top 1B always after being still the place ahead.Then, above-mentioned fluosolids C be configured to not only therein from the cross sectional shape on dispersion plate 2 tops be the part of certain size form the above-mentioned dense layer D of portion, but also thereon side partly form the above-mentioned thin layer E of portion, thereby the cross-sectional area in the apparatus main body 1 forms the top shape bigger than the bottom of fluosolids.
In addition, above-mentioned inlet 5 is known clearly as Fig. 2 and to be shown, is contained in the distolateral protruding end of semicircle one on the above-mentioned cross section of apparatus main body 1, upwards on the above-mentioned sidewall 1A of outside sloping portion.Thereby, inlet 5 be opened in apparatus main body 1 on the above-mentioned dense layer D of portion among the fluosolids C that forms with the thin layer E of portion boundary partly near.In addition, the central authorities of above-mentioned rectangular another distolateral short side part that this inlet on cross section 5 is relative offer the dry outlet 6 of handling later handled thing F.But this outlet 6 is positioned at position directly over the above-mentioned dispersion plate 2 in the present embodiment.And this outlet 6 is connected with output mechanism 8 by discharge pipe 7, and this output mechanism 8 can be adjusted from the discharge rate of outlet 6 by the dry handled thing F of discharge pipe 7 discharges, and what use in the present embodiment is vibratory conveyer.In addition, on above-mentioned outlet 6, be provided with can discharge pipe 7 sides advance and retreat, seal this outlet 6 with liquid by closely being connected flashboard 6A with this outlet 6.This flashboard 6A is except being used for preventing that cleaning solution from flowing out with in cleaning device main body 1 described later the time, and handled thing B also is not dried and just is discharged from from outlet 6 when also being used to prevent to apparatus main body 1 in initial stage input handled thing B.In addition, also on the above-mentioned top 1B of apparatus main body 1, be provided with the exhaust outlet 9 of discharging gas G in this apparatus main body 1, exhaust G from these exhaust outlet 9 discharges, the control of dust mechanism of the cyclone dust collectors that process is not shown etc. discharges exhaust body G, reclaim the drying particulate of the handled thing B that is discharged from simultaneously, then with well-known exhaust-gas treatment mechanism's processing and discharge.
On this apparatus main body 1, state top 1B thereon and be provided with the rotary drive mechanism 10 that constitutes by motor and decelerator etc., the rotating shaft 11 of this rotary drive mechanism 10, its axes O vertically downward, the sealing and flexibly rotationally through top 1B, and the fluosolids C that in apparatus main body 1, forms to dense D extend through of bottom of the thin layer E of portion of portion from it, its lower end extend to above-mentioned dispersion plate 2 directly near, the stirring vane 12 that extends to direction outer circumferential side radially with respect to above-mentioned axes O is installed, with the rabbling mechanism 13 of rotary drive mechanism 10 by rotatable these blade 12 formation present embodiments of rotating shaft 11 usefulness in the bottom of this rotating shaft 11.At this moment, rotating shaft 11, its axes O is set to the center by an above-mentioned distolateral semicircle of apparatus main body 1 cross section, and can rotate along the direction of rotation shown in the symbol T among the figure around axes O by above-mentioned rotary drive mechanism 10, therefore be contained in the stirring vane 12 on the above-mentioned bottom directly over the dispersion plate 2 of being positioned at of this rotating shaft 11, the rotational trajectory above the dispersion plate 2 be with above-mentioned cross section on a distolateral circle that semicircle is coaxial and diameter is slightly little, promptly be positioned at the below that is located at the inlet 5 on this distolateral sidewall 1A, and be provided in the bottom of fluosolids C, the bottom of promptly above-mentioned dense layer D.
And to shown in Figure 6, above-mentioned rabbling mechanism 13 is by a plurality of (present embodiment is 4) the above-mentioned stirring vane 12 that is contained in rotating shaft 11 bottoms as Fig. 4 ... constitute.These stirring vanes 12 ... for identical shaped identical size, be contained in key be entrenched in the bottom of rotating shaft 11 and the periphery of the bracing frame 14 that together rotates with this rotating shaft 11 on, and as shown in Figure 5 from overlooking of seeing of axes O top direction, slightly be honest direction, along the circumferential direction equally spaced be provided with to outer circumferential side with respect to the radial direction of axes O.In addition, each stirring vane 12 as shown in Figure 4, the root 15 of its bracing frame 14 sides, to its periphery down square neck tiltedly, simultaneously the blade part 16 of outer circumferential side with respect to above-mentioned root 15 bendings, to be to the in-plane vertical with axes O be that horizontal direction is extended.This blade part 16 as shown in Figure 6, by the face towards direction of rotation T side is the inclined-plane 16A that the rear side to direction of rotation T tilts upward, face towards direction of rotation T rear direction is vertical plane 16B simultaneously, and the face towards the below is the shape of right angled triangle for the cross section that the horizontal plane 16C vertical with axes O forms, and, from this horizontal plane 16C to above-mentioned inclined plane 16A and the height of root of blade 16 rising woods that intersect of vertical plane 16B and from vertical plane 16B to inclined plane 16A with the width of the direction of rotation T lateral edge portion of the crossing root of blade 16 of horizontal plane 16C, all be the shape that reduces gradually to outer circumferential side.
In addition, than above-mentioned bracing frame 14 by under the lower end of rotating shaft 11, also be provided with the blade 17 of broach shape.This blade 17, its main body 17A is the elongated tabular that slightly is rectangle and is positioned on the plane that comprises axes O, the length direction of this main body 17A, extend between the adjacent stirring vane 12,12 of circumferencial direction to diametric(al), and the lower end that is installed in rotating shaft 11 can therewith be rotated with respect to axes O.The main body 17A of this blade 17 on the lower limb that above-mentioned diametric(al) is extended, as shown in Figure 4, broach 17B by the acutangulate equilateral triangle of a plurality of front ends forms side by side along diametric(al), and these broach 17B ... the position of axes O direction of front end (lower end), with the above-mentioned horizontal plane 16C of the root of blade 16 of stirring vane 12 slightly with.And, the broach 17B of these blades 17 ... with the position of the horizontal plane 16 of front end and stirring vane 12, be set in as small as possible this blade 12,17 not and dispersion plate 2 interfere, be not subjected to simultaneously because of and dispersion plate 2 between sandwich handled thing B and interfere in the scope of blade 12,17 rotations.In addition, the length from the radial direction of axes O of blade 17 is longer than the length of the radial direction of the above-mentioned root 15 of stirring vane 12.
In addition, in apparatus main body 1, be provided with the wiper mechanism 18 of jet cleaning liquid H in this apparatus main body 1.In the present embodiment, this wiper mechanism 18 is located on the inner face of the above-mentioned top 1B in the apparatus main body 1, by cleaning from above-mentioned rotating shaft 11 to the blade 12 as rabbling mechanism 13 ... the 1st wiper mechanism 18A and the 2nd wiper mechanism 18B of the sidewall 1A inner face of cleaning device main body 1 constitute.The 1st wiper mechanism 18A wherein, its front end is equipped with the straight tube-like scavenge pipe of nozzle, from vertically be located at above-mentioned rotary drive mechanism 10 on the 1B of top around seal through top 1B towards rotating shaft 11 and with incline direction that above-mentioned axes O is intersected, supply to the cleaning fluid H such as water in this scavenge pipe, can be from above-mentioned nozzle to rotating shaft 11 and stirring vane 12 ... spray.In addition, above-mentioned the 2nd wiper mechanism 18B, level is installed on the 1B inner face of above-mentioned top and than shaped as frame scavenge pipe circular behind the place ahead circular slightly little and similar behind above-mentioned the place ahead of this top 1B, peripheral direction at this scavenge pipe is equipped with a plurality of nozzles towards outer circumferential side at least, supply with the cleaning fluid H of water etc. by airtight tube connector through top 1B to this scavenge pipe, spray from the inner face of nozzle to sidewall 1A.
And, as shown in Figure 1, on apparatus main body 1, also be provided with detection and supply with the supply pressure testing agencies 19 such as Pressure gauge of flowing gas A pressure to the above-mentioned compression chamber 3 of this apparatus main body 1, with detect the fluidisation pressure detecting mechanisms 20 such as Pressure gauge that formed the pressure of above-mentioned fluosolids C by the flowing gas A that ejects by dispersion plate 2 from this compression chamber 3, with these pressure detecting mechanisms 19, the pressure detecting result of fluosolids C in the pressure detecting result of fluidizing gas A in the 20 detected compression chambers 3 and the apparatus main body 1, be transported in the computer equal pressure calculating controlling organization 21 and handle, be controlled at the amount of the handled thing B that keeps formation fluosolids C in the apparatus main body 1 according to its pressure reduction.Concrete is, in the present embodiment, as shown in Figure 1, the output mechanism 8 of vibratory conveyer on aforementioned calculation controlling organization 21 and the dry handled thing F outlet 6 that is connected apparatus main body 1 by discharge pipe 7 etc. is connected, can be with the discharge rate that is contained in the dry handled thing B of output mechanism 8 control on the apparatus main body 1, the amount of supplying with handled thing B to apparatus main body 1 with feed mechanism 4 remains unchanged, by suppressing discharge rate with output mechanism 8, the recoverable amount of handled thing B in the apparatus main body 1 just increases, on the contrary, increase discharge rate and just can reduce recoverable amount.
Therefore, like this in fluidized bed type dryer of Gou Chenging and the drying means with this drying device, at first owing in this apparatus main body 1, have the rabbling mechanism 13 of stir process thing B among the above-mentioned fluosolids C that is being formed in the apparatus main body 1, so supply to the handled thing B of fluosolids C in this apparatus main body 1 with feed mechanism 4, because of fluosolids C flows and disperses, also stirred simultaneously by above-mentioned rabbling mechanism 13.Therefore, even if water content height or the adhesiveness of the handled thing B that supplies with are strong, this handled thing B condenses and only can not fully disperse with flowing of fluosolids C, form the just bulk of dry tack free, this bulk handled thing B itself also can be broken because of rabbling mechanism 13, or by mutually collision and disperseing between the block handled thing B that is stirred, simultaneously by the handled thing beta particle that flows on fluidizing gas A and the fluosolids C impact this handled thing B drying the surface, and this surface is cracked and exposed its inside, again it is cracked while stirring dry one side, so repeatedly, then above-mentioned block handled thing B is dispersed very little and be dried.
Therefore, drying device and drying means according to said structure, even do not increase flow by the fluidizing gas A of dispersion plate 2 in apparatus main body 1, can prevent from also to produce that this handled thing B is intact bulk and inside can not be by abundant dry situation, can prevent also simultaneously that the bottom that is trapped in fluosolids C because of the block handled thing B sinking of this formation from blocking the fluidizing gas A from dispersion plate 2 ejections of this bottom, the situation that obstruction forms fluosolids C itself takes place, so can the dry reliably handled thing B that supplies in the apparatus main body.And, owing to stir the handled thing B of fluosolids C with rabbling mechanism 13, particularly with the part of this rabbling mechanism 13 on the above-mentioned cross section of the above-mentioned dense layer D of portion that is located at this fluosolids C, can reach being uniformly dispersed of handled thing B, can be evenly dry with this handled thing B zero deflection ground, therefore produce the aridity deviation among the dry handled thing F that can prevent to be discharged from, that is, can provide dry handled thing F with even aridity.
In addition, if with the inlet 5 of feed mechanism 4 from apparatus main body 1, as mentioned above, when supplying with the high handled thing of water content and adhesiveness, then can form the block bottom that also sinks to fluosolids C at once, so be trapped in the below of this inlet 5 easily, to this, in the present embodiment drying device, it is the bottom that above-mentioned rabbling mechanism 13 is located at the fluosolids C of inlet 5 belows of in this apparatus main body 1, supplying with handled thing B, thereby the drying means of present embodiment is the bottom of the above-mentioned fluosolids C below the inlet 5 of supplying with this handled thing B in this apparatus main body 1, stirs the handled thing B that supplies in the apparatus main body 1.Therefore, can be forming block and being deposited to the handled thing B of the fluosolids C bottom of inlet 5 belows, stirring broken also refinement rapidly reliably scatter, so, according to present embodiment, can prevent the long delay of so block handled thing B and bring obstacle for the formation of fluosolids C, and can prevent that the block handled thing B that avales is subjected to less than stirring the drying of intactly discharging, can facilitate handled thing B more reliably.
And as this rabbling mechanism 13, what use in the present embodiment is the rotatable stirring vane 12 that is contained on the rotating shaft 11 that inserts in the apparatus main body 1, be the simplest structure, but stir process thing B cracks it reliably.And, the above-mentioned rotating shaft 11 of this rabbling mechanism 13, be that rotary drive mechanism 10 from the top 1B that is located at apparatus main body 1 airtightly runs through this top 1B, extends to the bottom from the top of above-mentioned fluosolids C and be provided with, therefore the part sealing that only is provided with at the place of minimum this top 1B of the pressure of fluosolids C in the rotating shaft 11 pass-through facility main bodys 1 gets final product, so both reached the seal construction simplification, also can prevent to supply to handled thing B in the apparatus main body 1 beyond outlet 6 and the exhaust outlet 9 to external leaks.And, the apparatus main body 1 of present embodiment, its cross section be provided with the distolateral of above-mentioned inlet 5 for semicircle and rotating shaft 11 vertically is set in the mode that intersects with the supercentral rotation O of this semicircle, so stirring vane 12 rotates along the inner periphery of the sidewall 1A of inlet 5 sides of apparatus main body 1, therefore can prevent reliably the handled thing B that supplied with on this cross section delay and its stirring cracked.
And, in the present embodiment,, be provided with the blade 17 of broach shape in the lower end of its above-mentioned rotating shaft 11 of this rabbling mechanism 13.Yet, near the close rotation of this rotating shaft 11 of the lower end side part of this rotating shaft 11, from the radius of this axes O more little then under same number of revolutions the velocity of rotation than outer circumferential side more little, therefore mixing effect is also little, and stirring vane 12 is from the shape of root 15 to blade part 16 bendings in the present embodiment, so and also produced simultaneously the space between the dispersion plate 2, become block handled thing B and be detained part easily, but by the blade 17 respectively at stirring vane 12 is set in this part, broach 17B with blade 17 lower ends discharges the above-mentioned block handled thing B that is trapped between this rotating shaft 11 lower end side part and the dispersion plate 2 while pulverizing with clawing, being discharged from the handled thing B that comes then can be stirred by the stirring vane 12 that its outer circumferential side rotates and crack, so according to present embodiment, the delay of block B be can further prevent, the formation of more stable fluosolids C and the even drying of handled thing B promoted.
In addition, in the present embodiment, carry out the stirring vane 12 that handled thing B stirs, the face towards direction of rotation T side of its blade part 16 is along to the acclivitous inclined-plane 16A of direction of rotation T rear side, and towards the face of the rear side of direction of rotation T is that the cross section of vertical plane 16B is the shape of right angled triangle, so in the direction of rotation T of stirring vane 12 side, handled thing B is subjected to the concentrated impact of the formed cutting edge of edge part cross section acute angle that above-mentioned inclined plane 16A and horizontal plane 16C intersect, perhaps cut and split and fragmentation scatter, drop on the handled thing B on the 16A of this inclined plane simultaneously, bounce upward along with the rotation of agitator arm 12 and be stirred, therefore can reach the purpose that stirs more efficiently and crack handled thing B.On the other hand, the rear side of the direction of rotation T of stirring vane 12, because of vertical plane 16B has reduced its area, and be vertically disposed, so adhesion process thing B seldom, when the running of this drying device finishes or during the kind of change handled thing B etc., removes the handled thing B that adheres to easily, and can prevent to have no alternative but to increase the situation of the driving force of rotary drive mechanism 10 because of the handled thing B that adheres to.In addition, as if triangular cross-sectional shape that such stirring vane 12 is squared up, as shown in Figure 6, can form vertical plane 16B and horizontal plane 16C with the angle steel of cross section L font, simultaneously the sheet material as inclined plane 16C is installed on it and forms this stirring vane 12, simultaneously, can obtain that it is easy to manufacture and pay stirring vane 12 high-intensity advantages.
In addition, in the drying device of present embodiment, stirring vane 12 as this rabbling mechanism 13, be the rectangular leg-of-mutton shape in cross section, but for example its intensity need not be too high during for more small-sized situation etc. when apparatus main body 1, the variation of rabbling mechanism 13 that can be as shown in Figure 7 is such, also can form stirring vane 22 from axes O tabular to the rectangle that its radial direction extends, and can be the same with above-mentioned inclined plane 16A this stirring vane 22, along being inclined upwardly towards direction of rotation T rear side.In the foregoing description and this variation, only be provided with one deck stirring vane 12,22, but also can multilayer stirring vane 12,22 be set in addition in the axes O direction in the bottom of rotating shaft 11.And, the blade 23 of the variation of above-mentioned broach shape blade shown in also can image pattern 8 is such, the a plurality of broach that are formed at this main body 23A lower end (but being in this variation) 23B along the platform shape that attenuates towards lower end side ... shown in this Fig. 8 (a), both sides in axes O tilt along the rear side direction towards cylindrical side direction direction of rotation T,, along with scanning out the handled thing B of the lower end side part that is trapped in rotating shaft 11 and discharge to outer circumferential sides, the rotation of this rotating shaft 11 rotation with blade 23 can discharge this handled thing B more reliably with this.Simultaneously, this broach shape blade 17,23 also can be set as multilayer.
In addition, in the drying device and drying means of present embodiment, be provided with the supply pressure testing agency 19 of the fluidizing gas A pressure that detects the compression chamber 3 of dispersion plate below 2 that supplies to apparatus main body 1, also be provided with detection simultaneously in apparatus main body 1 in the fluidisation pressure detecting mechanism 20 of fluidizing gas A pressure fluosolids C in of dispersion plate more than 2, according to from these testing agencies 19, the pressure reduction of two pressure that 20 testing result draws, by with aforementioned calculation controlling organization 21 control output mechanisms 8, can be controlled at the apparatus main body 1 interior recoverable amount that keeps the handled thing B of formation fluosolids C.Therefore, when above-mentioned pressure reduction increases, the discharge rate that just increases output mechanism 8 is to reduce the recoverable amount of the handled thing B in the apparatus main body 1, on the contrary when pressure reduction diminishes, the discharge rate that just suppresses output mechanism 8 is to increase recoverable amount, with this, the pass that can keep forming between the pressure of the amount of handled thing B of fluosolids C and flowing gas A is certain, to be implemented in the stabilisation of the fluosolids C that forms in the apparatus main body 1, therefore can from apparatus main body 1, discharge the handled thing F that is dried to specified moisture content reliably and supply with use.
For the handled thing B of the recoverable amount (bed thickness) that in apparatus main body 1, keeps regulation like this and form fluosolids C, can consider control with the pressure reduction of present embodiment is controlled and discharge oral-lateral in apparatus main body is provided with baffle plate etc., overflows.But if form block handled thing in the latter case intactly to the outlet side shifting, then such piece can not be discharged fully because of stopping of baffle plate, and the danger that can not form above-mentioned fluosolids is arranged.To this, by adopting mode, control recoverable amounts such as baffle plate need not be set in the present embodiment with pressure reduction control, when being bulk to outlet 6 side shiftings, handled thing B also can easily it be discharged, to guarantee the formation of fluosolids C.Simultaneously, even so discharge block handled thing B, can easily from the particle of the handled thing of drying, remove such piece with the classification mechanism of the separating screen device of being located at output mechanism 8 back etc. from outlet 6.
In addition, in the present embodiment, be to use according to above-mentioned pressure reduction with the method for the discharge rate of the dry handled thing F of output mechanism 8 controls, the recoverable amount of handled thing B in the control device main body 1, in contrast, for example constant with the discharge rate of the certain dry handled thing F of output mechanism 8 maintenances, control the recoverable amount that with the quantity delivered of the handled thing B of feed mechanism 4 in apparatus main body 1, also can control the handled thing B in this apparatus main body 1.But, when controlling quantity delivered in this wise, for example when becoming big because of pressure reduction and when reducing recoverable amount and limit quantity delivered, owing to remain in the feed mechanism 4 for a long time, there is the moisture of handled thing B to change easily, is easy to form block possibility, so in the present embodiment with output mechanism 8 controls.Certainly, also can control with output mechanism 8 and feed mechanism 4 both sides.In addition, use vibratory conveyer in the present embodiment as output mechanism 8, can be easily and adjust discharge rate reliably with the method for regulating its vibratory output, therefore, also have easily and carry out advantage reliably according to the handled thing B recoverable amount of above-mentioned pressure reduction.But, can certainly use vibratory conveyer output mechanism in addition.
And, the apparatus main body 1 of present embodiment, because the sidewall 1A inner periphery cross section of this apparatus main body 1 that its inner cross-sectional area is top compares the big circle in bottom on the limit, lower end of inlet 5, so top is also big than the bottom of the fluosolids C that forms in this apparatus main body 1.Therefore, the dense layer D of portion of volumetric ratio above-mentioned fluosolids C of bottom formation in this apparatus main body 1 that can guarantee the E of thin layer portion (top side) that forms on top is big, therefore, can suppress to swim the handled thing B on this thin layer E of portion particle, discharge from exhaust outlet 9 with the exhaust G of flowing gas A, the handled thing amount of handling in the front exhaust processing mechanism that reduction is made of above-mentioned dedusting mechanism can realize doing the rate of recovery that improves dry handled thing F.In addition, owing to reduced the pressure of the flowing gas A of this apparatus main body 1 internal upper part, therefore can be implemented in the seal construction that connects the above-mentioned rotating shaft 11 of this apparatus main body 1 top top 1B in the present embodiment and further simplify.
And, cross section in the present embodiment in this apparatus main body 1, it is aforesaid one distolateral semicircular in shape, simultaneously another distolateral be toroidal behind OBL the place ahead with its smooth connection, but for example also can be that as shown in Figure 9 variation is such, at one end on side and another two side 1A inner face between distolateral, wall portion 24 vertically is set and forms necking part, this necking part one distolateral, promptly the cross section in handled thing B inlet 5 sides also is slightly circle shape, another is distolateral simultaneously, be that outlet 6 sides are by narrow passage and this distolateral connection.When adopting such structure, can make its fragmentation at a distolateral handled thing B who stirs bulk fully who is provided with rabbling mechanism 13, therefore, can prevent further that bulk from intactly shifting to the other end and be discharged from, can realize improving the rate of recovery of the dry handled thing F of this drying device.
Simultaneously, in the present embodiment, be provided with on the said apparatus main body 1 can be in this apparatus main body 1 wiper mechanism 18 of jet cleaning liquid H, can finish or change the kind time-like of handled thing B in this drying device running, need not be manually with this wiper mechanism 18 jet cleaning liquid H cleaning device main body 1 inboard easily just, so shortened to required time of the change physics B of place and alleviated operator's muscle power etc.And, in the present embodiment, this wiper mechanism 18, have from above-mentioned rotating shaft 11 to stirring vane 12 as rabbling mechanism 13 ... the 1st wiper mechanism 18A of jet cleaning liquid H and the 2nd wiper mechanism 18B of jet cleaning liquid H on every side in apparatus main body 1 are from wherein the 1st wiper mechanism 18A can be to rotating shaft 11 and stirring vane 12 concentrated area jet cleaning liquid H flushing handled thing B.Its opposing party, the 2nd wiper mechanism 18B, its shape is similar to top 1B, promptly, because the shape that forms according to the cross section of sidewall 1A inner face, thus can be to the inwall 1A of apparatus main body 1 inner face jet cleaning liquid H evenly distributedly, thus present embodiment can be realized more effective and reliable cleaning.And can prevent that the baffle plate 6A or the cleaning fluid H that stop up outlet 6 in this cleaning from flowing out from discharge pipe 7.In addition, the cleaning fluid H that flows to bottom in the apparatus main body 1 can bleed off discharge from for example bottom of compression chamber 3, and then, just can make apparatus main body 1 inner dry by only supplying with temperature flowing gas A after cleaning.
(invention effect)
As described above, according to the present invention, in this apparatus main body, has the rabbling mechanism that stirs the handled thing in the fluosolids, even and the method that is dried on one side with stir process thing on one side such as when the big handled thing of water content or the strong handled thing of adherence carried out drying, the flow that need not increase flowing gas can prevent that also handled thing from becoming block and influencing its fluidisation, can realize the drying of reliable and stable treated thing.In addition, stir handled thing the bottom of the fluosolids by this rabbling mechanism being located at the handled thing inlet below that is positioned at apparatus main body, can realize further impelling the size degradation of block handled thing with stirring reliably and being dried.
In addition, by this rabbling mechanism being assemblied on the rotating shaft that inserts in the apparatus main body, also being rotatable stirring vane, can realize the simplification of this rabbling mechanism structure, and as if the form of this rotating shaft being arranged to extend to the bottom from the top of above-mentioned fluosolids, also can realize of the simplification of this rotating shaft breakthrough part at the hermetically-sealed construction of apparatus main body, that is, the spilling of handled thing in the apparatus main body can be prevented, also cheaper drying device can be provided.Simultaneously, owing to be provided with the blade of broach shape in the lower end of this rotating shaft, so can prevent delay at the handled thing of this lower end side, in addition, because stirring vane being formed the cross section of the vertical plane of the inclined plane possess the direction of rotation side and direction of rotation rear side is the shape of right angled triangle, so, both can stir block handled thing more reliably, impel its size degradation, can prevent the adhesion of handled thing again to stirring vane.
In addition, owing to recoverable amount, both reached the stabilisation of fluosolids and the handled thing that is dried to specified moisture content really can be provided according to the handled thing in the pressure reduction control device main body of the flowing gas in flowing gas of in apparatus main body, supplying with and the fluosolids.If particularly control this recoverable amount by the discharge rate of the dry handled thing of the vibratory conveyer adjustment that is used as output mechanism, just can be when not adjusting the quantity delivered of handled thing, because of the variation of the handled thing moisture supplied with is easy to form bulk.In addition, because the cross-sectional area top in the apparatus main body is bigger than the bottom of fluosolids, so can reduce the amount of the handled thing of discharging with the discharge of flowing gas, to realize improving the yield rate of dry handled thing, but and on apparatus main body, possesses the wiper mechanism of jet cleaning liquid, therefore can carry out easily apparatus main body inside cleaning, shortened the change time of handled thing kind and alleviated operator's labour, can facilitate further high efficiency dry the processing.
Claims (10)
1. fluidized bed type dryer flows it and forms fluosolids by flowing gas and make its drying supplying to handled thing in the apparatus main body; It is characterized in that:
Be provided with the rabbling mechanism that in described fluosolids, stirs described handled thing on the described apparatus main body, and the pressure detecting mechanism of detecting fluidization gas pressure in interior described flowing gas pressure of described apparatus main body and the described fluosolids, and, this fluidized bed type dryer is provided with the calculating controlling organization
Pressure reduction between the pressure that supplies to the described flowing gas in this apparatus main body that is detected according to described pressure detecting mechanism and the pressure of the flowing gas in the described fluosolids, by described calculating controlling organization, can control the amount that remains in the described apparatus main body and form the described handled thing of described fluosolids.
2. fluidized bed type dryer according to claim 1 is characterized in that:
Described rabbling mechanism is located in described apparatus main body the bottom of described fluosolids of the below of the inlet of supplying with described handled thing.
3. fluidized bed type dryer according to claim 1 and 2 is characterized in that:
Described rabbling mechanism, be mounted in vertically on the rotating shaft that extends, and rotatable stirring vane.
4. fluidized bed type dryer according to claim 3 is characterized in that:
Described rotating shaft is extended the ground configuration from the top of described fluosolids to the bottom.
5. fluidized bed type dryer according to claim 4 is characterized in that:
Be provided with the blade of broach shape in the lower end of described rotating shaft.
6. according to any described fluidized bed type dryer in the claim 3 to 5, it is characterized in that:
Described stirring vane is the inclined plane that tilts upward towards the direction of rotation rear direction towards the face of its direction of rotation side, and is vertical, the rectangular leg-of-mutton shape in cross section towards the face of direction of rotation rear side.
7. fluidized bed type dryer according to claim 1 is characterized in that:
On the described handled thing outlet on the described apparatus main body, be connected with vibratory conveyer as output mechanism, by according to the discharge rate of described pressure reduction, control the amount that remains in the described apparatus main body and form the described handled thing of described fluosolids by the described handled thing of this output mechanism adjustment.
8. according to any described fluidized bed type dryer in the claim 1 to 7, it is characterized in that:
Cross-sectional area in the described apparatus main body, its top is bigger than described fluosolids bottom.
9. according to any described fluidized bed type dryer in the claim 1 to 8, it is characterized in that:
Be provided with on the described apparatus main body can be in this apparatus main body the wiper mechanism of jet cleaning liquid.
10. drying means flows it and forms fluosolids by flowing gas and make its drying supplying to handled thing in the apparatus main body; It is characterized in that:
In described fluosolids, make its drying while stirring described handled thing,
In the bottom that is positioned at the described fluosolids below the inlet of this this handled thing of apparatus main body supply, stir the described handled thing that supplies in the described apparatus main body,
According to the pressure reduction between the pressure of the flowing gas in pressure that supplies to the described flowing gas in this apparatus main body and the described fluosolids, control remains in the described apparatus main body and forms the amount of the described handled thing of described fluosolids.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001319633A JP3576518B2 (en) | 2001-10-17 | 2001-10-17 | Fluidized bed dryer |
| JP2001319633 | 2001-10-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1412510A CN1412510A (en) | 2003-04-23 |
| CN1172150C true CN1172150C (en) | 2004-10-20 |
Family
ID=19137155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021278989A Expired - Lifetime CN1172150C (en) | 2001-10-17 | 2002-08-15 | Fluidized bed type dryer and drying method |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3576518B2 (en) |
| KR (1) | KR100471099B1 (en) |
| CN (1) | CN1172150C (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100564206C (en) * | 2005-11-09 | 2009-12-02 | 中国科学院等离子体物理研究所 | Fixed fluidized bed powder metering and distributing delivery device and realization high stable are carried and the method for distributing powder |
| JP5058567B2 (en) * | 2006-11-17 | 2012-10-24 | 新日本製鐵株式会社 | Fluidized drying method and fluidized bed drying apparatus |
| CN103471349B (en) * | 2013-09-03 | 2016-05-18 | 张家港保税区万盛机械工业有限公司 | Pulsating Crystallization bed |
| CN103752294A (en) * | 2014-01-02 | 2014-04-30 | 朱春增 | Powder activated carbon regeneration production line |
| CN106158154A (en) * | 2015-04-08 | 2016-11-23 | 天津市小猫线缆有限公司 | A kind of closed type high tension cable drying equipment |
| CN104930847A (en) * | 2015-07-15 | 2015-09-23 | 南京高捷轻工设备有限公司 | Wet solid material feeding device with pre-drying function and pre-drying feeding method thereof |
| CN105028343A (en) * | 2015-08-28 | 2015-11-11 | 天津海友佳音生物科技股份有限公司 | Decapsulated egg drying device |
| CN105758140A (en) * | 2016-03-31 | 2016-07-13 | 浙江凯润制药有限公司 | Open oven |
| JP7022928B2 (en) * | 2018-01-17 | 2022-02-21 | シンフォニアテクノロジー株式会社 | Vibration drying device |
| CN111076499A (en) * | 2019-12-11 | 2020-04-28 | 陕西航天机电环境工程设计院有限责任公司 | Drying system applied to high-salinity wastewater recycling crystalline salt |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5221645Y2 (en) * | 1972-12-14 | 1977-05-18 | ||
| JPS5835456Y2 (en) * | 1979-04-07 | 1983-08-10 | 株式会社 川田製作所 | Mainly drying equipment for synthetic resin materials |
| JPH01296939A (en) * | 1988-05-24 | 1989-11-30 | Johnson Boira Kk | Drying of food |
| JPH05277354A (en) * | 1992-03-30 | 1993-10-26 | Kankyo Soken Consultant:Kk | Annular shaped fluidized bed device |
| JP3585654B2 (en) * | 1996-07-11 | 2004-11-04 | 株式会社パウダリングジャパン | Two-stage drying spray dryer |
| JPH1054660A (en) * | 1996-08-13 | 1998-02-24 | Shinko Pantec Co Ltd | Drying equipment and drying method by drying equipment |
| JP3151704B2 (en) * | 1996-12-12 | 2001-04-03 | 有限会社アクトエンジニアリング | Apparatus and method for drying garbage |
| JP3284108B2 (en) * | 1999-04-21 | 2002-05-20 | プラスメート株式会社 | Hot air dryer for resin pellets |
| JP3084026B1 (en) * | 1999-12-27 | 2000-09-04 | 月島機械株式会社 | Vertical stirring and drying equipment |
-
2001
- 2001-10-17 JP JP2001319633A patent/JP3576518B2/en not_active Expired - Fee Related
-
2002
- 2002-07-23 KR KR10-2002-0043257A patent/KR100471099B1/en active IP Right Grant
- 2002-08-15 CN CNB021278989A patent/CN1172150C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1412510A (en) | 2003-04-23 |
| JP3576518B2 (en) | 2004-10-13 |
| JP2003130545A (en) | 2003-05-08 |
| KR100471099B1 (en) | 2005-03-08 |
| KR20030032826A (en) | 2003-04-26 |
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Granted publication date: 20041020 |