CN101940891A - Continuous vacuum granulating dryer - Google Patents

Continuous vacuum granulating dryer Download PDF

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Publication number
CN101940891A
CN101940891A CN2009100544442A CN200910054444A CN101940891A CN 101940891 A CN101940891 A CN 101940891A CN 2009100544442 A CN2009100544442 A CN 2009100544442A CN 200910054444 A CN200910054444 A CN 200910054444A CN 101940891 A CN101940891 A CN 101940891A
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CN
China
Prior art keywords
steam
vacuum
tail gas
dry
drying
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Pending
Application number
CN2009100544442A
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Chinese (zh)
Inventor
沈善明
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沈善明
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Priority to CN2009100544442A priority Critical patent/CN101940891A/en
Publication of CN101940891A publication Critical patent/CN101940891A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a continuous vacuum granulating dryer. The dryer comprises a steam condensate water union, a left/right rotation shaft, a horizontal cylinder, a steam heating jacket, an inner heating plate, a V-shaped dry material returner, an exhaust gas filter board and the like, wherein a drive drives the horizontal cylinder to rotate along a direction, a nozzle is used to continuously spray wet material droplets on the dry powder particles which are continuously conveyed back, as the dry material is continuously conveyed back and the distribution of the material is unbalanced; the material moves form a spraying granulation section to a drying section and heated and dried by the heating jacket and the inner heating plate under the conditions of vacuum, movement and mixing; and partial dry powder particles enter an adiabatic dry material cabin, and most of dry powder particles pass through the V-shaped dry material returner, are grinded to powder by a grinder and then are circulated back to the spraying granulation section. The dryer of the invention utilizes the rotation of the cylinder and the gravity to autoweigh the dry powder which is necessary for granulating and drying and adopts the energy-saving indirect heating and the low-temperature vacuum drying; and the device has simple and compact structure and is suitable to perform high-quality and low-cost drying to viscous fluid and mash.

Description

Continous vacuum granulation drying machine
Technical field
The present invention relates to a kind of continous vacuum granulation drying machine, belong to technical field of heat exchange, be applicable to various band viscous fluids and the pastel drying of under indirect vacuum and low temperature condition, granulating continuously.
Background technology
The dry great majority of Chinese medical concrete still rest on the charging tray formula hot-air oven drying of original backwardness at present, are unfavorable for very much the quality of medicinal extract, and the lower continous vacuum band drier of spray-drying recovery rate is then promoted because of the equipment price costliness is extremely difficult.Many extensive pastel dryings are produced quality product as the pumpkin powder with the hot-air oven difficulty, and the low fan energy consumption of the spray-drying thermal efficiency is big, and drying cost is too high though quality meets the requirements, and is difficult to popularized service.
Summary of the invention
It is suitable because of band viscous fluid and pastel that the object of the invention provides a kind of energy, carries out the continous vacuum granulation drying machine that pressure sprays under indirect energy saving vacuum and low temperature condition.Technical scheme of the present invention is: it by thermal baffle, the V-arrangement siccative in the manhole of steam condensation water movable joint, left shaft holder, left-handed rotating shaft, sprocket wheel, driving machine, horizontal cylinder, band discharging opening, vacuum insulation sleeve, band flash hole, center return defeated device, interior heating plate, tail gas filtering plate, Steam Heating chuck, shower nozzle, in establish O-ring seals dextral shaft, right bearing seat, vacuum exhaust pipe, tail gas articulation, tail gas outlet and wet feed pipe etc. constitute.Be characterized in: rotating shaft is respectively established at the horizontal cylinder two end socket centers of band heating jacket, and two rotating shafts are bearing in respectively on the left and right bearing block, and the driving machine drive sprocket drives horizontal cylinder and rotates to a direction; The adiabatic siccative storehouse that horizontal cylinder is made of vacuum insulation sleeve and thermal baffle, establish heating plate constitutes in the polylith dryer section and spray section three parts of granulating and form, adiabatic siccative storehouse divides into the manhole of band discharging opening, from spray the section of granulating contain the wet-milling plastochondria rotary power drive turn over mix reach with chuck down in the heating surface heat exchange of heating plate; The vacuum exhaust pipe of stationary fixing upwards bends after passing dextral shaft, establish the tail gas filtering plate at last curved horizontal segment, the wet feed pipe passes the vacuum suction tube hub and retreads and bend towards, end at it is established shower nozzle, shower nozzle sprays the wet feed grain downwards and drips in the powder body in mechanical fluidisation, dry powder drips parcel with the wet feed grain, stops grain to drip that adhesion is agglomerating mutually again, the part moisture that contains the wet-milling plastochondria in mechanical fluidisation by spraying granulation section cylindrical shell chuck heating surface heating evaporation; The V-arrangement siccative returns defeated device, and to pass and be welded in dryer section terminal and spray and granulate between the section on the horizontal cylinder (8), it is by weighing hopper, efferent duct, middle hopper, pulverizer and input pipe welding constitute, the condition that it utilizes drying machine to rotate a circle to put upside down repeatedly up and down, whenever the weighing hopper opening surface that circles inserts the xeraphium plastochondria bed of material once, take up the xeraphium plastochondria then and pour in the weighing hopper automatically, powder body in the weighing hopper is pulverized by pulverizer in being discharged into the middle hopper process, the V-arrangement siccative returns defeated device with the drying machine rotation upwards the time, dry powder in the middle hopper is discharged on the powder body in the mechanical fluidisation by input pipe under the gravity effect, when the V-arrangement siccative returns defeated device and is in the horizontal cylinder bottom, weighing hopper opening and input pipe opening all are higher than more than the rotation centerline, to stop undesired the pouring in down a chimney of xeraphium plastochondria, constantly returning defeated dry powder makes the powder body average moisture content that sprays in the section of granulating be in both high and don't the conglomeration state, return defeated device by the V-arrangement siccative and siccative is returned to be passed to from dryer section in a large number spray the section of granulating, the material imbalance is impelled and is sprayed that material moves to dryer section in the section of granulating; Establish the steam condensation water movable joint of band O-ring seals at the anticlockwise shaft end, steam inlet and steam condensation water outlet are welded on the steam condensation water movable joint, in the tail gas outlet articulation that the end of vacuum exhaust pipe is established the band O-ring seals, tail gas outlet and wet stock pipe are located in this articulation.
The present invention adopts pressure sprinkling granulation, indirect drying to contain wet particle, dry products storage and siccative and returns defeated each operating function unit independently separately, makes to operate and control conveniently and to do mutually and disturbs.For prevent that dry product from continuing to be heated in storage, dry products is stored in the adiabatic siccative storehouse of adiabatic vacuum insulation sleeve and thermal baffle formation, non-atomization type pressure disperses the sprinkling of viscous fluid or pastel to granulate can reduce the power consumption of dispersion, avoid droplet to fly upward and be stained with adhering on heating surface and the tail gas filtering plate, energy-saving drying under vacuum and low temperature saturated vapor (40~100 ℃) indirect, temperature is low and the thermal efficiency is higher than normal pressure oven drying and spray-drying, product quality also can be dry than beautiful with normal pressure spray far above hot-air oven, and drying cost is significantly less than spray-drying.This drying machine and continous vacuum band drier relatively, simple and compact equipment structure and cost is much lower, though same low-temperature vacuum drying and drying efficiency is higher than the continous vacuum band drier, so drying cost just is lower than the continous vacuum band drier significantly.
Description of drawings
Fig. 1 is continous vacuum granulation drier structure figure;
Fig. 2 is heating steam chuck and drip pan structure chart;
Fig. 3 is the A-A cutaway view of Fig. 2;
Fig. 4 is the structure chart of interior heating plate and weighing hopper and horizontal cylinder.
Fig. 5 is that the A of weighing hopper among Fig. 4 is to view.
The specific embodiment
The embodiment of the invention is described further in conjunction with the accompanying drawings, as shown in Figure 1, continous vacuum granulation drying machine it comprise by steam inlet (1), steam condensation water outlet (2), steam condensation water movable joint (3), left shaft holder (4), left-handed rotating shaft (5), sprocket wheel (6), driving machine (7), horizontal cylinder (8), band discharging opening manhole (9), vacuum insulation sleeve (10), thermal baffle (11), weighing hopper (12), interior heating plate (13), efferent duct (14), pulverizer (15), middle hopper (16), input pipe (17), tail gas filtering plate (18), Steam Heating chuck (19), shower nozzle (20), in establish the dextral shaft (21) of O-ring seals, right bearing seat (22), vacuum exhaust pipe (23), tail gas articulation (24), tail gas outlet (25), with wet feed pipe compositions such as (26).Be characterized in: left and right rotating shaft (5,21) is respectively established at horizontal cylinder (8) the two end socket centers of band heating jacket (19), two rotating shafts are bearing in respectively on the left and right bearing block (4,22), and driving machine (7) drive sprocket (6) also drives horizontal cylinder (8) and rotates to a direction; The siccative storehouse is made of vacuum insulation sleeve (10) and the thermal baffle (11) that is fastened on the vacuum insulation sleeve (10), and the siccative storehouse divides into the manhole (9) of band discharging opening, establishes heating plate (13) in the polylith in the dryer section; The vacuum exhaust pipe (23) of band O-ring seals stationary fixing passes the upwards bending of dextral shaft (21) back, establishing tail gas filtering plate (18), wet feed pipe (26) at last curved horizontal segment passes vacuum exhaust pipe (23) center and retreads and bend towards, pass part and all establish O-ring seals, establish shower nozzle (20) at its end; The V-arrangement siccative returns defeated device, and to pass and be welded in dryer section terminal and spray and granulate between the section on the horizontal cylinder (8), and it is by weighing hopper (12), efferent duct (14), middle hopper (16), pulverizer (15) and input pipe (17) welding formation; Establish the steam condensation water movable joint (3) of band O-ring seals at left-handed rotating shaft (5) end, steam inlet (1) and steam condensation water outlet (2) are located in the articulation (3), in the tail gas articulation (24) that the end of vacuum exhaust pipe (23) is established the band O-ring seals, tail gas outlet (25) and wet feed pipe (26) are located in the tail gas articulation (24).
As Fig. 2,3, shown in, establish drip pan (29) on the Steam Heating chuck (19), drip pan is welded on the inwall of Steam Heating chuck (19), and drip pan (29) opening surface is to direction of rotation, drip pan (29) bottom sets out water pipe (28), its outlet is inserted in the left-handed rotating shaft (5), returns in the Steam Heating chuck (19) for preventing aqueous reflux, establishes the dash annular ring (27) of a protrusion in left-handed rotating shaft (5).
As Fig. 4, shown in 5, interior heating plate (13) passes also by two ends steam condensation water UNICOM mouth (30) and horizontal cylinder (8) welding UNICOM's Steam Heating chuck (19), establish the cleaning operation passage between the two interior heating plates (13) of symmetric arrangement, weighing hopper (12) is fastened on the efferent duct (14), and the opening surface of weighing hopper (12) is to direction of rotation.

Claims (2)

1. continous vacuum granulation drying machine, it is by steam inlet (1), steam condensation water outlet (2), steam condensation water movable joint (3), left shaft holder (4), left-handed rotating shaft (5), sprocket wheel (6), driving machine (7), horizontal cylinder (8), band discharging opening manhole (9), vacuum insulation sleeve (10), thermal baffle (11), weighing hopper (12), interior heating plate (13), efferent duct (14), pulverizer (15), middle hopper (16), input pipe (17), tail gas filtering plate (18), Steam Heating chuck (19), shower nozzle (20), in establish the dextral shaft (21) of O-ring seals, right bearing seat (22), vacuum exhaust pipe (23), tail gas articulation (24), tail gas outlet (25), form with wet feed pipe (26), it is characterized in that: a left side is respectively established at horizontal cylinder (8) the two end socket centers of band heating jacket (19), dextral shaft (5,21), two rotating shafts are bearing in a left side respectively, right bearing seat (4,22) on, driving machine (7) drive sprocket (6) also drives horizontal cylinder (8) and rotates to a direction; The siccative storehouse is made of vacuum insulation sleeve (10) and the thermal baffle (11) that is fastened on the vacuum insulation sleeve (10), and the siccative storehouse divides into the manhole (9) of band discharging opening, establishes heating plate (13) in the polylith in the dryer section; The vacuum exhaust pipe of stationary fixing (23) passes the upwards bending of dextral shaft (21) back, establish tail gas filtering plate (18) at last curved horizontal segment, wet feed pipe (26) passes vacuum exhaust pipe (23) center and retreads and bend towards, and passes part and all establishes O-ring seals, establishes shower nozzle (20) at its end; The V-arrangement siccative returns defeated device, and to pass and be welded in dryer section terminal and spray and granulate between the section on the horizontal cylinder (8), and it is by weighing hopper (12), efferent duct (14), middle hopper (16), pulverizer (15) and input pipe (17) welding formation; Establish the steam condensation water movable joint (3) of band O-ring seals at left-handed rotating shaft (5) end, steam inlet (1) and steam condensation water outlet (2) are located on the steam condensation water movable joint (3), in the tail gas articulation (24) that the end of vacuum exhaust pipe (23) is established the band O-ring seals, tail gas outlet (25) and wet feed pipe (26) are located in the tail gas articulation (24).
2. continous vacuum granulation drying machine according to claim 1, it is characterized in that establishing on the Steam Heating chuck (19) drip pan (29), drip pan (29) is welded on the inwall of Steam Heating chuck (19), drip pan (29) opening surface is to direction of rotation, the drip pan bottom sets out water pipe (28), its outlet is inserted in the left-handed rotating shaft (5), returns in the Steam Heating chuck (19) for preventing aqueous reflux, establishes the dash annular ring (27) of a protrusion in left-handed rotating shaft (5).
CN2009100544442A 2009-07-07 2009-07-07 Continuous vacuum granulating dryer Pending CN101940891A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009100544442A CN101940891A (en) 2009-07-07 2009-07-07 Continuous vacuum granulating dryer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009100544442A CN101940891A (en) 2009-07-07 2009-07-07 Continuous vacuum granulating dryer

Publications (1)

Publication Number Publication Date
CN101940891A true CN101940891A (en) 2011-01-12

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Application Number Title Priority Date Filing Date
CN2009100544442A Pending CN101940891A (en) 2009-07-07 2009-07-07 Continuous vacuum granulating dryer

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102889762A (en) * 2012-10-24 2013-01-23 无锡市通和工机有限公司 Vacuum harrow type dryer
CN103127906A (en) * 2011-11-24 2013-06-05 中国辐射防护研究院 Method and device for vacuum impregnation and vacuum predrying of nuclear grade active carbon

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103127906A (en) * 2011-11-24 2013-06-05 中国辐射防护研究院 Method and device for vacuum impregnation and vacuum predrying of nuclear grade active carbon
CN103127906B (en) * 2011-11-24 2016-08-24 中国辐射防护研究院 Core level activated carbon vacuum impregnation and vacuum pre-dried method and apparatus
CN102889762A (en) * 2012-10-24 2013-01-23 无锡市通和工机有限公司 Vacuum harrow type dryer

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Application publication date: 20110112