CN110006240A - A kind of multistage powder drying processing unit and its method - Google Patents
A kind of multistage powder drying processing unit and its method Download PDFInfo
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- CN110006240A CN110006240A CN201910390240.XA CN201910390240A CN110006240A CN 110006240 A CN110006240 A CN 110006240A CN 201910390240 A CN201910390240 A CN 201910390240A CN 110006240 A CN110006240 A CN 110006240A
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- inner tube
- dry
- exocoel
- steam
- powder
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/18—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs
- F26B17/20—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs the axis of rotation being horizontal or slightly inclined
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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
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
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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
-
- 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
- F26B25/06—Chambers, containers, or receptacles
- F26B25/14—Chambers, containers, receptacles of simple construction
- F26B25/16—Chambers, containers, receptacles of simple construction mainly closed, e.g. drum
Abstract
The invention discloses a kind of multistage powder drying processing units, including outer tube, inner tube, extraction steam pipe, high pressure blower, gland steam exhauster, steam inlet duct, wheel belt, support roller and pedestal, outer tube sleeve is outside inner tube, it is uniformly arranged multiple partitions between outer tube and inner tube, and the cavity between outer tube and inner tube is divided by multilevel drying exocoel by partition.Meanwhile the invention also discloses a kind of multistage powder drying processing methods.It is intracavitary to outside first order drying to be passed through steam, waste hot steam caused by powder drying in the inner cavity position of the corresponding inner tube of the dry exocoel of upper level, it is extracted out by extraction steam pipe and high pressure blower, enter the dry exocoel of next stage after pressurized, the energy as powder in the inner cavity position of the corresponding inner tube of the dry exocoel of next stage, so that initial steam heat is more made full use of, efficiency of energy utilization is higher, realizes powder drying energy-saving run.
Description
Technical field
The present invention relates to powder drying processing technique more particularly to a kind of multistage powder drying processing unit and its method,
Powder drying process can efficiently be completed.
Background technique
Powder drying is the common technique of industrial circle, chemical industry, pharmacy, printing and dyeing, petroleum, steel, automobile, food and its
He has a wide range of applications many industrial circles.Powder body material is heated by the energy, the moisture in powder is evaporated, reaches
To the purpose of powder drying.
Commonly used powder drying technique is more in industry, wherein the dry rotary kiln of the drying process of mainstream, heating method
Fuel heating and electric heating, fuel heating method can be divided into can be divided into internal heat type and external-heat by hot mode according to powder again.It is interior
Hot type is that fuel burns in rotary kiln inner cavity, is heated to rotary kiln cylinder, and the mesh for evaporating its moisture powder heating is reached
, heat-transfer effect is good；External-heat is that rotary kiln cylinder body outer wall is heated in fuel combustion, is transferred heat to by cylinder wall surface
Powder, to heat powder evaporation water, external-heat drying process, heat source flue gas and powder are contactless, and powder drying quality is good,
But because of indirect heat transfer, external-heat rotary kiln energy consumption is compared with internal heat type height.
Either internal heat type and external-heat rotary kiln, after the heat that heat source generates is absorbed by powder, moisture evaporation, evaporation
Moisture takes away amount of heat, this partial heat at present can not recycling and reusing, thus cause entirely to dry industry energy consumption compared with
It is high.
Understanding to existing powder drying status, lack it is a kind of can efficiently use it is dry after residual heat resources method and dress
It sets, to save a large amount of energy in the powder drying technique of various fields.
Summary of the invention
For waste heat in existing powder drying technique can not high efficiente callback problem, problem core is generation when powder drying
Waste hot steam be not used to powder preheating and evaporation.The present invention provides a kind of multistage powder drying processing units, by powder
The dry preheating and evaporation for generating waste hot steam and being used for powder, by suction waste hot steam and pressurizes, evaporated as next stage
The heat source of journey, the multiple-effect for forming steam utilizes, so that the purpose of evaporation energy consumption be greatly reduced.
In order to solve the above-mentioned technical problem, present invention employs following technical solutions:
A kind of multistage powder drying processing unit, including outer tube, inner tube, extraction steam pipe, high pressure blower, gland steam exhauster, steam into
Tracheae, wheel belt, support roller and pedestal；
The outer tube sleeve is tightly connected between the both ends and inner tube of the outer tube outside inner tube, the outer tube and inner tube it
Between be uniformly arranged multiple partitions, and the cavity between outer tube and inner tube is divided by multilevel drying exocoel by partition, except last
Level-one dries exocoel, is respectively provided with an extraction steam pipe, every steam extraction in the inner cavity position of the corresponding inner tube of remaining dry exocoel at different levels
Pipe connects a high pressure blower, and each high pressure blower is connect with a gland steam exhauster, and each extraction steam pipe passes through corresponding high pressure blower
It is intracavitary outside dry with next stage with gland steam exhauster to be connected to；
Said inner tube is provided with feed inlet close to one end of the dry exocoel of afterbody, and said inner tube is dry close to the first order
One end of exocoel is equipped with discharge duct；Said inner tube is higher than inner tube close to one end of discharge duct close to one end of feed inlet；The steaming
It is intracavitary outside vapour air inlet pipe is dry with the first order to be connected to；Except the least significant end of remaining dry exocoel at different levels of the dry exocoel of the first order is corresponding
Outer tube on be equipped with exhaust pipe, pressure control valve is equipped on the outlet end of each exhaust pipe；
It is at least arranged outside the outer tube there are two wheel belt, a pair of of support roller is arranged in each wheel belt lower section, and the support roller setting exists
It is rotatably assorted on pedestal and with pedestal, the wheel belt is placed on corresponding a pair of of support roller.
Further, the discharge duct is vertical with the axis of inner tube, and one end of the discharge duct is connected to inner tube, the discharging
The other end of pipe is equipped with turnover panel discharge valve.
Further, the discharge bucket of the powder for collecting discharge duct discharge is provided with below the discharge duct.
Further, which further includes belt conveyer, one end position of the belt conveyer
In the underface of the outlet of discharge bucket.
Further, which further includes feed hopper, and the outlet of the feed hopper and feed inlet connect
It connects.
Further, condensate output transistor is arranged close to least significant end in the dry exocoel of the first order, and the outlet of each pressure control valve is equal
It is connect with cold wind efferent duct；The steam inlet duct, condensate output transistor and cold wind efferent duct respectively with triple channel rotary joint
Three interfaces of one end connect one to one.
Further, end cap is arranged close to one end of the dry exocoel of the first order in said inner tube, and said inner tube is connect with end cap
Two discharge ducts are symmetrical arranged on outer wall；The turnover panel discharge valve includes that pivoting support, valve turnover panel, spring and spring are fixed
Seat, the pivoting support are fixed at the outer rounded ends of discharge duct, and the valve turnover panel gear is in the external port of discharge duct, institute
The side for stating valve turnover panel is hinged on pivoting support, and the spring fixed seat is arranged in the outer circle of discharge duct, and the one of spring
End is connected on spring fixed seat, and the other end of spring is connected on the other side of valve turnover panel.
Further, which further includes driving motor and gearbox, and the driving motor moves
The power input shaft of power output shaft and gearbox connects, and the power output shaft of a support roller and gearbox in a pair of of support roller connects
It connects.
Further, one layer of heat preservation layer is set outside the outer tube.
Meanwhile the invention also discloses a kind of multistage powder drying processing method, the process employs above-mentioned multistage powder
Body drying process device, this method comprises the following steps:
1) intracavitary to outside first order drying to be passed through steam, high pressure blower is opened, passes through driving motor and drives support roller and outer tube
It rotates together；
2) powder is added into inner tube from feed inlet；
3) heat source using steam as powder in the inner cavity position of the corresponding inner tube of the dry exocoel of the first order；
4) steam that powder drying evaporates in the inner cavity position of the corresponding inner tube of the dry exocoel of the first order by extraction steam pipe,
Enter gland steam exhauster after high pressure blower pressurization, into the dry exocoel in the second level, as in the corresponding inner tube of the dry exocoel in the second level
The heat source of powder in the position of cavity portion；
5) it is circuited sequentially according to the method for step 4), makes the powder in the inner cavity position of the corresponding inner tube of the dry exocoel of upper level
The steam of the dry evaporation of soma enters the dry exocoel of next stage, to the powder in the inner cavity position of the corresponding inner tube of the dry exocoel of next stage
Body is preheated and is evaporated in advance；
6) powder enters in discharge duct, then by discharging to lower position in inner tube when moving to the least significant end of inner tube
Pipe discharge.
The solution have the advantages that: for powder under the turning effort of inner tube, the heat of absorption dehydration exocoel is gradual drying,
And it is moved to low export direction.Powder without other equipment, that is, movable, and is moved in the inner cavity of inner tube in drying process
Middle rolling blending, heat transfer coefficient is high, and drying process is rapid.Powder in the inner cavity position of the corresponding inner tube of the dry exocoel of upper level
Waste hot steam caused by dry is extracted out by extraction steam pipe and high pressure blower, and the dry exocoel of next stage is entered after pressurized, as
The energy of powder in the inner cavity position of the corresponding inner tube of the dry exocoel of next stage, so that initial steam heat is more made full use of,
Efficiency of energy utilization is higher, reaches and drying process energy consumption is greatly reduced, and realizes powder drying energy-saving run.It is dry for a large amount of powders
The energy consumption of drying process is greatly reduced in the multiple fields such as dry chemical industry, pharmacy, printing and dyeing, petroleum, steel, automobile, food, for
Energy-saving and emission-reduction have a very important significance.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of multistage powder drying processing unit device；
Fig. 2 is the structural schematic diagram of turnover panel discharge valve.
In figure: 1-outer tube；2-inner tubes；3-partitions；4-extraction steam pipes；5-high pressure blowers；6-gland steam exhausters；7-chargings
Mouthful；8-discharge ducts；9-steam inlet ducts；10-exhaust pipes；11-pressure control valves；12-wheel belt；13-support rollers；14-bases
Seat；15-turnover panel discharge valves；16-discharge buckets；17-belt conveyors；18-feed hoppers；19-condensate output transistors；20—
Cold wind efferent duct；21-triple channel rotary joints；22-end caps；23-pivoting supports；24-valve turnover panels；25-springs；
26-spring fixed seats；27-driving motors；28-gearboxes；29-insulating layers；30-filters；31-conducting slip rings；
32-steam supply pipes；33-condensed water discharge pipes；34-cold wind discharge pipes；35-power supply lines；36-blower connecting lines.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
As shown in Figure 1, a kind of multistage powder drying processing unit, including outer tube 1, inner tube 2, extraction steam pipe 4, high pressure blower 5,
Gland steam exhauster 6, steam inlet duct 9, wheel belt 12, support roller 13, pedestal 14, belt conveyer 17, feed hopper 18, driving motor 27 and change
Fast case 28.
1 set of outer tube outside inner tube 2, the diameter of outer tube 1 is greater than the diameter of inner tube 2, and outer tube 1 and inner tube 2 are co-axially mounted, outer tube
It is tightly connected between 1 both ends and inner tube 2, in the present embodiment, the both ends of the settable sealing plate in the both ends of outer tube 1, outer tube 1 are logical
The outer wall for crossing sealing plate and inner tube 2 is tightly connected.Multiple partitions 3 are uniformly arranged between outer tube 1 and inner tube 2, and passing through partition 3 will
Cavity between outer tube 1 and inner tube 2 is divided into multilevel drying exocoel, in the present embodiment, lays between outer tube 1 and inner tube 2
Cavity between outer tube 1 and inner tube 2 is divided into three-stage drying exocoel by two partitions 3, two partitions 3.Inner tube 2 is close to the first order
End cap 22 is arranged in one end of dry exocoel, and inner tube 2 is provided with feed inlet 7 close to one end of the dry exocoel of afterbody, by inner tube
2, the cylindrical cavity that end cap 22 and feed inlet 7 form is dry inner cavity, is that powder receives the dry place of heat of vaporization.Except most
Rear stage dries exocoel, is respectively provided with an extraction steam pipe 4 in the inner cavity position of the corresponding inner tube 2 of remaining dry exocoel at different levels, and every
Extraction steam pipe 4 connects a high pressure blower 5, and each high pressure blower 5 is connect with a gland steam exhauster 6, and each extraction steam pipe 4 passes through corresponding
High pressure blower 5 and gland steam exhauster 6 are connected to intracavitary outside next stage drying.Filter 30 is arranged in the air intake of extraction steam pipe 4, prevents drying
Enter extraction steam pipe 4 with steam into the powder of steam in the process, wears high pressure blower 5, it is intracavitary outside subsequent drying to influence steam
Condensing heat-exchange.
Inner tube 2 is equipped with discharge duct 8 close to one end of the dry exocoel of the first order, and in the present embodiment, inner tube 2 and end cap 22 connect
Two discharge ducts 8 are symmetrical arranged on the outer wall connect.Inner tube 2 is higher than inner tube 2 close to the one of discharge duct 8 close to one end of feed inlet 7
End.It is intracavitary outside steam inlet duct 9 is dry with the first order to be connected to；Except the first order dries the minimum of remaining dry exocoel at different levels of exocoel
It holds and is equipped with exhaust pipe 10 on corresponding outer tube 1, be equipped with pressure control valve 11 on the outlet end of each exhaust pipe 10.In this implementation
In example, the condensed water and part incoagulable gas that the dry exocoel in the second level and the dry exocoel of the third level generate are needed effectively from second
It is discharged in the dry exocoel of grade and the dry exocoel of the third level, pressure control valve 10 controls the pressure in exocoel, and in superpressure
Valve is opened, and condensed water and incoagulable gas therein is discharged by pressure control valve 10.
It is at least arranged outside outer tube 1 there are two wheel belt 12, a pair of of support roller 13 is set below each wheel belt 12, the setting of support roller 13 exists
It is rotatably assorted on pedestal 14 and with pedestal 14, wheel belt 12 is placed on corresponding a pair of of support roller 13.The power of driving motor 27 is defeated
Shaft is connect with the power input shaft of gearbox 28, and the power output shaft of a support roller in a pair of of support roller 13 and gearbox 28 connects
It connects, i.e., driving motor 27 drives the axis of gearbox 28 to rotate, and the power output shaft of gearbox 28 drives 13 turns of corresponding support roller again
Dynamic, support roller 13 drives the wheel belt 12 being pressed on support roller 13 to rotate, and then outer tube 1 and inner tube 2 is driven to rotate together, and rotation is filled
Setting is the ordinary skill in the art, therefore is not elaborated.One layer of heat preservation layer 29 is set outside outer tube 1, reduce inner tube 2 inner cavity and
Dry exocoels at different levels are to function of environment heat emission, and in the present embodiment, there are two 12 sets of wheel belt outside the insulating layer outside outer tube 1, wheel belt 12
It is that a concentric co-axial is whole with inner tube 2 and outer tube 1, by 13 support wheel band 12 of support roller, wheel belt 12 exists together with inner tube 2 and outer tube 1
It is rotated on tugboat, completes powder drying process.
Discharge duct 8 is vertical with the axis of inner tube 2, and one end of discharge duct 8 is connected to inner tube 2, sets on the other end of discharge duct 8
There is turnover panel discharge valve 15, the lower section of discharge duct 8 is provided with the discharge bucket 16 of the powder for collecting the discharge of discharge duct 8, belt fortune
One end of defeated machine 17 is located at the underface of the outlet of discharge bucket 16.The outlet of feed hopper 18 is connect with feed inlet 7, and the first order is dry
Condensate output transistor 19 is arranged close to least significant end in exocoel, and the outlet of each pressure control valve 11 is connect with cold wind efferent duct 20；It steams
Vapour air inlet pipe 9, condensate output transistor 19 and cold wind efferent duct 20 three interfaces one with 21 one end of triple channel rotary joint respectively
One is correspondingly connected with.For meet rotary drying and fixed steam supply pipes 32, condensate draining pipe 33, cold wind discharge pipe 34 with
And effective connection of power supply line 35, setting meet the threeway rotary joint 21 and conducting slip ring 31 of transmittance process between sound.So that
The three of motionless steam supply pipes 32, condensate draining pipe 33 and cold wind discharge pipe 34 and 21 other end of triple channel rotary joint
A interface connects one to one, and motionless steam supply pipes 32 pass through steam inlet duct of the triple channel rotary joint 21 to rotation
The condensate output transistor 19 of 9 conveying steam, rotation is conveyed by triple channel rotary joint 21 to motionless condensate draining pipe 33
Condensed water, the cold wind efferent duct 20 of rotation by triple channel rotary joint 21 to motionless cold wind discharge pipe 34 convey condensed water and
Incoagulable gas.Power supply line 35 is connect with one end conducting wire of conducting slip ring 31, and blower connecting line 36 is another with conducting slip ring 31
Conducting wire connection is held, so that fixed power supply line 35 is supplied by high pressure blower 5 from conducting slip ring 31 to rotation and blower connecting line 36
Electricity.It, can be 31 sets by conducting slip ring in order to keep more reasonable structure and the structure of threeway rotary joint 21 and conducting slip ring 31 simpler
Outside threeway rotary joint 21, and conducting slip ring 31 is coaxially set with threeway rotary joint 21, as shown in Figure 1.
Turnover panel discharge valve 15 includes pivoting support 23, valve turnover panel 24, spring 25 and spring fixed seat 26, as shown in Fig. 2,
Pivoting support 23 is fixed at the outer rounded ends of discharge duct 8, and valve turnover panel 24 is kept off in the external port of discharge duct 8, and valve turns over
The side of plate 24 is hinged on pivoting support 23, and spring fixed seat 26 is arranged in the outer circle of discharge duct 8, and one end of spring 25 connects
It connects on spring fixed seat 26, the other end of spring 25 is connected on the other side of valve turnover panel 24.To prevent discharge duct 8 in heat
Largely enter air impact drying process under pressure effect, therefore turnover panel discharge valve 15 be set in the end of discharge duct 8, i.e., powder into
Enter discharge duct 8, under powder gravity, using the gravitational force urges valve turnover panel 24 of powder itself, when on valve turnover panel 24
When the elastic force of spring 25 is lower than powder gravity, valve turnover panel 24 is opened, and powder is unloaded from discharge duct 8 through open valve turnover panel 24
Under, into discharge bucket 16；When outer tube 1 and inner tube 2 are in rotary course, the power of powder acted on valve turnover panel 24 is less than bullet
When the elastic force of spring 25, valve turnover panel 24 covers discharge duct 8, prevents air from entering in the inner cavity of inner tube 2.
A kind of multistage powder drying processing method, this method comprises the following steps:
1) intracavitary to outside first order drying to be passed through steam, high pressure blower 5 is opened, passes through driving motor 27 and drives 13 He of support roller
Outer tube 1 rotates together；
2) powder is added into inner tube 2 from feed inlet 7；
3) heat source using steam as powder in the inner cavity position of the corresponding inner tube 2 of the dry exocoel of the first order；
4) steam that powder drying evaporates in the inner cavity position of the corresponding inner tube 2 of the dry exocoel of the first order passes through extraction steam pipe
4, enter gland steam exhauster 6 after high pressure blower 5 pressurizes, into the dry exocoel in the second level, as the corresponding inner tube 2 of the dry exocoel in the second level
Inner cavity position in powder heat source；
5) it is circuited sequentially according to the method for step 4), in the inner cavity position for making the corresponding inner tube 2 of the dry exocoel of upper level
The steam of powder drying evaporation enters the dry exocoel of next stage, in the inner cavity position of the corresponding inner tube 2 of the dry exocoel of next stage
Powder preheated and evaporated in advance；
6) powder enters in discharge duct 8, then by unloading to lower position in inner tube 2 when moving to the least significant end of inner tube 2
Expects pipe 8 is discharged.
The condensed water that the dry outer intracavitary steam condensation of the first order generates is discharged by condensate output transistor 19；Except the first order
Intracavitary condensed water and part incoagulable gas are controlled by pressure control valve 11 outside other dryings at different levels outside dry exocoel
Discharge.
In the present embodiment, the cavity between outer tube 1 and inner tube 2 is divided into three-stage drying exocoel (i.e. three independent pipes
Shape cavity), which time utilization of the heat of the steam in the inner cavity position of inner tube 2 is corresponded to, then is which grade.Initial steam enter the
Level-one dries exocoel, and steam utilizes for the first time, and it is level-one that the dry exocoel of the first order, which corresponds to powder drying in the inner cavity position of inner tube 2,
Dry, powder receives the steam heat of the dry exocoel of the first order, and the moisture in powder is evaporated by thermal evaporation, the drying of powder level-one
Steam is extracted out by first high pressure blower 5, and secondary drying exocoel is entered after pressurization, and the steam of pressurized heating discharges heat
Amount is second of utilization of steam thermal energy, and it is dry for second level that the dry exocoel in the second level corresponds to powder drying in the inner cavity position of inner tube 2
Dry, powder receives the steam heat of the dry exocoel in the second level, and the moisture in powder is by thermal evaporation, the steaming of powder secondary drying evaporation
Vapour is extracted out by second high pressure blower 5, enters three-stage drying exocoel, and it is steam that the steam of pressurized heating, which discharges heat,
Thermal energy third time utilizes, and it is three-stage drying that the dry exocoel of the third level, which corresponds to powder drying in the inner cavity position of inner tube 2, and powder receives
The third level dries the steam heat of exocoel, and the moisture in powder is by thermal evaporation.
Powder is at the uniform velocity added in the inner cavity of inner tube 2 by feed hopper 18, i.e. three-stage drying.Dryings at different levels be it is coaxially connected and
Interior chamber size is consistent, and the inclination installation of inner tube 2, and level-one dry place is minimum, three-stage drying position highest, and powder is from feed inlet 7
After, under turning effort, gradually moved to lower along the inner cavity of inner tube 2, the inner cavity in motion process, constantly from inner tube 2
Wall surface absorbs heat, moisture evaporation, and powder gradually completes drying process.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the scope of the claims of invention.
Claims (10)
1. a kind of multistage powder drying processing unit, it is characterised in that: including outer tube (1), inner tube (2), extraction steam pipe (4), high pressure
Blower (5), gland steam exhauster (6), steam inlet duct (9), wheel belt (12), support roller (13) and pedestal (14)；
The outer tube (1) cover inner tube (2) outside, be tightly connected between the both ends and inner tube (2) of the outer tube (1), the outer tube
(1) it is uniformly arranged between inner tube (2) multiple partitions (3), and passes through partition (3) for the cavity between outer tube (1) and inner tube (2)
It is divided into multilevel drying exocoel, in addition to the dry exocoel of afterbody, the inner cavity of the corresponding inner tube (2) of remaining dry exocoel at different levels
An extraction steam pipe (4) is respectively provided in position, every extraction steam pipe (4) connects a high pressure blower (5), each high pressure blower (5) and one
A gland steam exhauster (6) connection, each extraction steam pipe (4) pass through corresponding high pressure blower (5) and the dry exocoel of gland steam exhauster (6) and next stage
Interior connection；
Said inner tube (2) is provided with feed inlet (7) close to one end of the dry exocoel of afterbody, and said inner tube (2) is close to first
One end of the dry exocoel of grade is equipped with discharge duct (8)；One end of said inner tube (2) close feed inlet (7) is close higher than inner tube (2) to unload
One end of expects pipe (8)；It is intracavitary outside the steam inlet duct (9) is dry with the first order to be connected to；Except remaining of the dry exocoel of the first order
It is equipped with exhaust pipe (10) on the corresponding outer tube of least significant end (1) of dry exocoels at different levels, on the outlet end of each exhaust pipe (10)
It is equipped with pressure control valve (11)；
The outer tube (1) is at least arranged outside there are two wheel belt (12), a pair of of support roller (13) of each wheel belt (12) lower section setting, described
Support roller (13) is arranged on pedestal (14) and is rotatably assorted with pedestal (14), and the wheel belt (12) is placed on corresponding a pair of of support roller
(13) on.
2. multistage powder drying processing unit according to claim 1, it is characterised in that: the discharge duct (8) and inner tube
(2) axis is vertical, and one end of the discharge duct (8) is connected to inner tube (2), and the other end of the discharge duct (8), which is equipped with, to be turned over
Plate discharge valve (15).
3. multistage powder drying processing unit according to claim 1, it is characterised in that: the lower section of the discharge duct (8)
It is provided with the discharge bucket (16) of the powder for collecting discharge duct (8) discharge.
4. multistage powder drying processing unit according to claim 3, it is characterised in that: further include belt conveyer
(17), one end of the belt conveyer (17) is located at the underface of the outlet of discharge bucket (16).
5. multistage powder drying processing unit according to claim 1, it is characterised in that: further include feed hopper (18), institute
The outlet for stating feed hopper (18) is connect with feed inlet (7).
6. multistage powder drying processing unit according to claim 1, it is characterised in that: the dry exocoel of the first order is close to most
Condensate output transistor (19) are arranged in low side, and the outlet of each pressure control valve (11) is connect with cold wind efferent duct (20)；The steaming
Vapour air inlet pipe (9), condensate output transistor (19) and cold wind efferent duct (20) respectively with triple channel rotary joint (21) one end three
A interface connects one to one.
7. multistage powder drying processing unit according to claim 2, it is characterised in that: said inner tube (2) is close to first
End cap (22) are arranged in one end of the dry exocoel of grade, are symmetrical arranged two on the outer wall that said inner tube (2) is connect with end cap (22) and unload
Expects pipe (8)；The turnover panel discharge valve (15) includes pivoting support (23), valve turnover panel (24), spring (25) and spring fixed seat
(26), the pivoting support (23) is fixed at the outer rounded ends of discharge duct (8), and valve turnover panel (24) gear is in discharge duct
(8) in external port, the side of the valve turnover panel (24) is hinged on pivoting support (23), and the spring fixed seat (26) sets
It sets in the outer circle of discharge duct (8), one end of spring (25) is connected on spring fixed seat (26), and the other end of spring (25) connects
It connects on the other side of valve turnover panel (24).
8. multistage powder drying processing unit according to claim 1, it is characterised in that: further include driving motor (27) and
The power output shaft of gearbox (28), the driving motor (27) is connect with the power input shaft of gearbox (28), a pair of of support roller
(13) the power output axis connection of a support roller and gearbox (28) in.
9. according to claim 1 to multistage powder drying processing unit described in any one of 8 claims, it is characterised in that:
One layer of heat preservation layer (29) is arranged in the outer tube (1) outside.
10. a kind of multistage powder drying processing method, it is characterised in that: the process employs any one of claims 1 to 9 power
Benefit requires the multistage powder drying processing unit, and this method comprises the following steps:
1) intracavitary to outside first order drying to be passed through steam, it opens high pressure blower (5), passes through driving motor (27) and drive support roller (13)
It is rotated together with outer tube (1)；
2) interior from feed inlet (7) to inner tube (2) that powder is added；
3) heat source using steam as powder in the inner cavity position of the corresponding inner tube (2) of the dry exocoel of the first order；
4) steam that powder drying evaporates in the inner cavity position of the corresponding inner tube (2) of the dry exocoel of the first order passes through extraction steam pipe
(4), enter gland steam exhauster (6) after high pressure blower (5) pressurization, it is corresponding as the dry exocoel in the second level into the dry exocoel in the second level
Inner tube (2) inner cavity position in powder heat source；
5) it is circuited sequentially according to the method for step 4), makes the powder in the inner cavity position of the corresponding inner tube (2) of the dry exocoel of upper level
The steam of the dry evaporation of soma enters the dry exocoel of next stage, in the inner cavity position of the corresponding inner tube (2) of the dry exocoel of next stage
Powder preheated and evaporated in advance；
6) powder enters in discharge duct (8) to lower position in the inner tube (2) when moving to the least significant end of inner tube (2), then by
Discharge duct (8) discharge.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117465922A (en) * | 2023-12-27 | 2024-01-30 | 诸城谷德食品工业装备有限公司 | Stuffing conveying device of stuffing separating machine |
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