CN110440532A - A kind of material vacuum dryer - Google Patents
A kind of material vacuum dryer Download PDFInfo
- Publication number
- CN110440532A CN110440532A CN201910746991.0A CN201910746991A CN110440532A CN 110440532 A CN110440532 A CN 110440532A CN 201910746991 A CN201910746991 A CN 201910746991A CN 110440532 A CN110440532 A CN 110440532A
- Authority
- CN
- China
- Prior art keywords
- drying
- inner cylinder
- vacuum dryer
- material vacuum
- main shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 43
- 238000001035 drying Methods 0.000 claims abstract description 34
- 238000005304 joining Methods 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 230000001535 kindling effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004093 laser heating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
- F26B11/12—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in stationary drums or other mainly-closed receptacles with moving stirring devices
- F26B11/16—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in stationary drums or other mainly-closed receptacles with moving stirring devices the stirring device moving in a vertical or steeply-inclined plane
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/10—Heating arrangements using tubes or passages containing heated fluids, e.g. acting as radiative elements; Closed-loop systems
-
- 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
- F26B25/001—Handling, e.g. loading or unloading arrangements
- F26B25/002—Handling, e.g. loading or unloading arrangements for bulk goods
-
- 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
- F26B25/008—Seals, locks, e.g. gas barriers or air curtains, for drying enclosures
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
- F26B2200/02—Biomass, e.g. waste vegetative matter, straw
Abstract
The present invention discloses a kind of material vacuum dryer, including sequentially connected deceleration mechanism, Drying, sub-sieve drying packet, auxiliary drying packet, cyclone separator and blower, the Drying bottom are connected to hot-blast stove;Drying includes the inner barrel and outer barrel of coaxial package, wherein, the cavity that inner cylinder surrounds is material channel, annular housing between inner cylinder and outer cylinder is hot-air channel, heat conducting pipe is circumferentially covered in the inner cylinder barrel outer surface of hot-blast stove joining place, main shaft group is rotatably equipped in the cavity of the inner cylinder, the main shaft group includes shaft, is provided with multiple impelling sheets and stirrer paddle on the outside of the shaft.The dryer uses indirect heating manner, and furnace body directly heats heat conducting pipe, transfers heat to punishment in advance inner cylinder by heat conducting pipe, it is ensured that material does not contact directly with fire source, avoids the safety accidents such as kindling, improves safety coefficient.
Description
Technical field
The present invention relates to stalk manufacture fields, and in particular to a kind of material vacuum dryer.
Background technique
Biomass granulation industry, the drying equipment used at this stage be mainly single-cylinder type revolution drying equipment, raw material by into
Material mouth enters roller, and inner wall of rotary drum welds the lifting blade of tilt angle, is raised raw material by roller rotation and slowly to being pushed forward
It is dynamic, by the draft effect of rear end blower, hot wind is pumped into roller, hot wind is sufficiently mixed with sawdust, sawdust by with hot wind
With coming into full contact with for cylinder lifting blade, sawdust internal moisture is sufficiently evaporated, steam is directly extracted out by blower, and sawdust is going out
The discharge of material mouth end, completes drying course.
Following problems existing for existing equipment:
1, hot wind is directly pumped by blower, though there is simple back-fire relief structure, can not avoid sawdust and fire source completely
It directly contacts, easily causes the safety accidents such as on fire, safety coefficient is lower;
2, hot wind is directly pumped by blower, and wind speed is in 1-2 meter per second or so, venthole temperature shorter with sawdust time of contact
At 90 ° -120 °, for the utilization efficiency of hot wind in 50-60%, utilization efficiency of heat energy is lower;
3, equipment feed inlet and outlet is static not rotational structure, and cylinder is rotor, and junction is sealed into stainless steel substrates packet
Wrap up in sealing structure, easy to damage, sealing is poor, normal temperature air easily enters, and causes heat-energy losses, and utilization rate is low;
4, hot wind is as long with sawdust time of contact as possible to reach, so the production of cylinder size is very long, equipment cost is high,
It takes up a large area.
Summary of the invention
In view of the above problems, the present invention provides a kind of material vacuum dryer, which uses indirect heating manner, furnace
Body directly heats heat conducting pipe, transfers heat to punishment in advance inner cylinder by heat conducting pipe, it is ensured that material does not contact directly with fire source, avoids
The safety accidents such as fire, improve safety coefficient.
The present invention is achieved by the following measures:
A kind of material vacuum dryer, including sequentially connected deceleration mechanism, Drying, sub-sieve drying packet, auxiliary drying
Packet, cyclone separator and blower, the Drying bottom are connected to hot-blast stove;
The Drying includes the inner barrel and outer barrel of coaxial package, wherein the cavity that inner cylinder surrounds is material channel, inner cylinder
Annular housing between outer cylinder is hot-air channel, is circumferentially covered in the inner cylinder barrel outer surface of hot-blast stove joining place thermally conductive
It manages, is rotatably equipped with main shaft group in the cavity of the inner cylinder, the main shaft group includes shaft, is provided on the outside of the shaft multiple
Impelling sheet and stirrer paddle.
Preferably, multiple rotor disks are evenly arranged with along axis in the shaft, the outside of the shaft is evenly distributed
Multiple armature spindles, each armature spindle run through all rotor disks.
Preferably, the impelling sheet is arranged on the outside of rotor disk in the shape of a spiral in shaft front., the stirrer paddle and master
Axis is vertically arranged and runs through main shaft, and each stirrer paddle is respectively positioned between adjacent two armature spindle, and adjacent two panels stirrer paddle is mutual
Vertically.
Preferably, the section of the stirrer paddle is " L " type, and armature spindle is located at the outside of " L " type.
Preferably, the rotor disk of the shaft tail portion is equipped with multiple stirring rod.
Preferably, the armature spindle is steel pipe.
Preferably, be provided between the inner barrel and outer barrel it is multiple be used to support outer cylinder be connected and fixed ring.
Preferably, the deceleration mechanism includes the big sprocket wheel connecting with spindle nose, and the big sprocket wheel is connected by chain
There is minor sprocket.
Preferably, the main shaft group and inner cylinder junction are provided with rubber gasket.
Beneficial effects of the present invention:
(1) form of the present invention using inner barrel and outer barrel suit, inner cylinder built-in material are hot wind between inner barrel and outer barrel,
By the way of indirect heating, furnace body directly heats heat conducting pipe, transfers heat to punishment in advance inner cylinder by heat conducting pipe, it is ensured that material is not
It is directly contacted with fire source, avoids the safety accidents such as kindling, improve safety coefficient;
(2) drying cylinder body internal gas is extracted out using blower, local decompression's vacuum state, material is generated inside Drying
Within the scope of lower temperature, by moisture evaporative removal;Space between inner cylinder and outer cylinder is whole heating space, and cylinder is uniform
Large area is heated, effectively improves the heat transference efficiency of Drying, and the material contact of different sections is heated evenly consistent, whole drying effect
Rate is high, and drying production capacity is big, and drying venthole temperature is at 60 ° -90 °, and the utilization efficiency of hot wind is 70% -80%, heat energy utilization
It is high-efficient;
(3) equipment is static not rotational structure into and out of material mouth cylinder, and intermediate spindle is rotor, and junction is sealed into
Mechanical labyrinth sealing structure, the service life is long, sealing effect is good, and heat utilization rate is high;
(4) equipment is rotary shaft even-heating structure, and heat contacts each section of uniformity with sawdust, and part is vacuum zone,
The thermal efficiency is high, and evaporation capacity is big, so cylinder size is short, equipment cost is high, occupied area is small.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of application for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is overall structure figure of the invention;
Fig. 2 is inner barrel and outer barrel cross-sectional view;
Fig. 3 is the cross-sectional view of A-A in Fig. 2;
Fig. 4 is rotating shaft group structure figure;
In figure: 1, first planet discharger, 2, minor sprocket, 3, Drying, 3-1, inner cylinder, 3-2, outer cylinder, 3-3, heat conducting pipe,
3-4, it is connected and fixed ring, 4, hot-blast stove, 5, bracket, 6, sub-sieve drying packet, 7, auxiliary drying packet, 8, cyclone separator, 9, second
Planet discharger, 10, blower, 11, chain, 12, big sprocket wheel, 13, main shaft group, 13-1, shaft, 13-3,13-2, rotor disk are pushed away
Into piece, 13-4, armature spindle, 13-5, stirrer paddle.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Whole description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiments herein, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall in the protection scope of this application.
Material vacuum dryer as shown in Figs 1-4, two common support drums 3 of bracket 5, wherein a left side of outer cylinder 3-2
Top is held to be connected the first planet discharger, control inlet amount is uniform when for being packed into material, guarantees cylinder leakproofness and holding cylinder
Internal negative-pressure vacuum state.
Inner cylinder 3-1 and outer cylinder 3-2 coaxial package, be provided between two it is multiple be connected and fixed ring 3-4, be used to support outer
Cylinder 3-2, the outside of outer cylinder are laid with insulating layer, and for keeping inner barrel temperature, cylinder preheating is risen for the setting of insulating layer and outer cylinder
Warm speed is fast, reduces thermal loss, it is ensured that efficient utilization rate.The cavity that inner cylinder surrounds is material channel, inner cylinder 3-1 and outer cylinder
Annular housing between 3-2 is hot-air channel, is circumferentially covered with heat conducting pipe 3- in the inner cylinder barrel outer surface of 4 joining place of hot-blast stove
3, heat conducting pipe use in lead to heat pipe, intermediate space heat dissipation transmitting is fast, it is ensured that does not generate bending deformation when laser heating, both ensures cylinder
Body rotating property is stablized, and can improve heating speed and efficiency.
Inner/outer tube both ends flange seal installs bearing block and rolling bearing in flange, for being rotatablely connected main shaft group
13.And on the outside of feed end, the shaft 13-1 of main shaft group 13 is connect with big sprocket wheel 12, and big sprocket wheel 12 passes through chain 11 and chainlet
2 transmission connection of wheel, big sprocket wheel and the minor sprocket kind of drive form deceleration mechanism, realize main shaft deceleration.
Multiple rotor disk 13-2 are successively evenly arranged on shaft 13-1 along axis, are respectively provided with multiple through-holes on rotor disk,
Armature spindle 13-4 runs through the through-hole of all rotor disks, is circumferentially uniformly arranged on the outside of shaft 13-1, armature spindle is steel pipe, weight
Gently, driving force is saved, inertia is small, enhances operation stability.
Impelling sheet 13-3 is arranged on the outside of rotor disk 13-2 in the shape of a spiral in the front shaft 13-1, guarantees material from the first row
It is rapidly entered in inner cylinder in star discharger 1, it is ensured that charging is smooth, and putty, stirrer paddle 13-5 are not vertically arranged and run through with main shaft
Main shaft, each stirrer paddle are respectively positioned between adjacent two armature spindle, and adjacent two panels stirrer paddle is arranged in a mutually vertical manner.Effect be by
Material, which is stirred to raise, ensures that material contacts uniformly with cylinder base, and the section of stirrer paddle is " L " type, utilizes end rake
Divide and uniformly push material forward, guarantees the fluency of entire material drying.Armature spindle is located at the outside of " L " type, stirs for enhancing
Mix the intensity of blade.Each rotor disk is mounted on multiple stirring rod on several rotor disks of the tail portion shaft 13-1, for preventing
Material arch camber when discharging.
It is communicated with discharge nozzle in the discharge port of Drying 3, discharge nozzle is sequentially communicated sub-sieve drying packet 6, auxiliary dries packet 7,
Cyclone dust collectors 8 and blower 10 are communicated with the second planet discharger 9 in the bottom of cyclone dust collectors 8.
Sub-sieve drying packet 6 rely on density stratification, the high density impurity contained in material is separated, it is ensured that material it is pure
Cleanliness provides safety in production for subsequent production equipment and ensures.Drying packet 7 is sufficiently tied material with hot gas by loosely drying packet
It closes, carries out auxiliary drying with the moisture that the principle of air-flow wink-dry contains material.Cyclone separator is by material and steam
Air-flow is separated, vapor stream discharge, and material is by gravity by the second uniformly discharge of planet discharger 9.Blower 10 is high pressure
Blower, for extracting material out, it is ensured that dry the parital vacuum of inner cylinder, reduce the temperature of moisture discharge.
The foregoing description of the disclosed embodiments makes professional and technical personnel in the field can be realized or use the application.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the application.Therefore, the application
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (9)
1. a kind of material vacuum dryer, which is characterized in that wrapped including sequentially connected deceleration mechanism, Drying, sub-sieve drying,
Auxiliary drying packet, cyclone separator and blower, the Drying bottom are connected to hot-blast stove;
The Drying includes the inner barrel and outer barrel of coaxial package, wherein the cavity that inner cylinder surrounds is material channel, inner cylinder and outer
Annular housing between cylinder is hot-air channel, is circumferentially covered with heat conducting pipe in the inner cylinder barrel outer surface of hot-blast stove joining place, institute
It states and is rotatably equipped with main shaft group in the cavity of inner cylinder, the main shaft group includes shaft, is provided with multiple propulsions on the outside of the shaft
Piece and stirrer paddle.
2. a kind of material vacuum dryer according to claim 1, which is characterized in that uniformly set in the shaft along axis
Multiple rotor disks are equipped with, the outside of the shaft is evenly distributed multiple armature spindles, and each armature spindle runs through all rotor disks.
3. a kind of material vacuum dryer according to claim 2, which is characterized in that the impelling sheet is on shaft front edge
It is arranged in the shape of a spiral on the outside of rotor disk, the stirrer paddle and main shaft are vertically arranged and run through main shaft, each equal position of stirrer paddle
Between adjacent two armature spindle, adjacent two panels stirrer paddle is mutually perpendicular to.
4. a kind of material vacuum dryer according to claim 3, which is characterized in that the section of the stirrer paddle is
" L " type, armature spindle are located at the outside of " L " type.
5. a kind of material vacuum dryer according to claim 4, which is characterized in that the armature spindle is steel pipe.
6. a kind of material vacuum dryer according to claim 1, which is characterized in that the rotor disk of the shaft tail portion is pacified
Equipped with multiple stirring rod.
7. a kind of material vacuum dryer according to claim 1, which is characterized in that be arranged between the inner barrel and outer barrel
Have it is multiple be used to support outer cylinder be connected and fixed ring.
8. a kind of material vacuum dryer according to claim 1, which is characterized in that the main shaft group and inner cylinder junction
It is provided with rubber gasket.
9. a kind of material vacuum dryer according to claim 1, which is characterized in that the deceleration mechanism includes and main shaft
The big sprocket wheel of end connection, the big sprocket wheel are connected with minor sprocket by chain.
Priority Applications (1)
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CN201910746991.0A CN110440532A (en) | 2019-08-14 | 2019-08-14 | A kind of material vacuum dryer |
Applications Claiming Priority (1)
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CN201910746991.0A CN110440532A (en) | 2019-08-14 | 2019-08-14 | A kind of material vacuum dryer |
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CN110440532A true CN110440532A (en) | 2019-11-12 |
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CN201910746991.0A Pending CN110440532A (en) | 2019-08-14 | 2019-08-14 | A kind of material vacuum dryer |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111689707A (en) * | 2020-05-08 | 2020-09-22 | 北新集团建材股份有限公司 | Calcining device |
CN113465327A (en) * | 2021-06-23 | 2021-10-01 | 重庆新申世纪新材料科技有限公司 | Drying device for inorganic material synthesis |
CN114061267A (en) * | 2021-11-11 | 2022-02-18 | 山东金格瑞机械有限公司 | Vacuum material dryer |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111689707A (en) * | 2020-05-08 | 2020-09-22 | 北新集团建材股份有限公司 | Calcining device |
CN111689707B (en) * | 2020-05-08 | 2021-07-30 | 北新集团建材股份有限公司 | Calcining device |
CN113465327A (en) * | 2021-06-23 | 2021-10-01 | 重庆新申世纪新材料科技有限公司 | Drying device for inorganic material synthesis |
CN114061267A (en) * | 2021-11-11 | 2022-02-18 | 山东金格瑞机械有限公司 | Vacuum material dryer |
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