CN107875659A - A kind of spray dryer - Google Patents
A kind of spray dryer Download PDFInfo
- Publication number
- CN107875659A CN107875659A CN201711099528.9A CN201711099528A CN107875659A CN 107875659 A CN107875659 A CN 107875659A CN 201711099528 A CN201711099528 A CN 201711099528A CN 107875659 A CN107875659 A CN 107875659A
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- China
- Prior art keywords
- partition
- chamber
- drying tower
- high speed
- cyclone separator
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- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0082—Regulation; Control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/16—Evaporating by spraying
- B01D1/18—Evaporating by spraying to obtain dry solids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/16—Evaporating by spraying
- B01D1/20—Sprayers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a kind of spray dryer, including drying tower, cyclone separator, high speed centrifugal atomization device；Hot wind inlet is provided with the top of drying tower, the nozzle of high speed centrifugal atomization device through high speed centrifugal atomization device behind the top center of drying tower is located at the top in drying tower, and high speed centrifugal atomization device and the concentric setting of drying tower, high speed centrifugal atomization device is provided with charging aperture, and the top of cyclone separator is provided with air outlet；The side wall of drying tower and the side wall of the cyclone separator are provided with vertically coconnected chamber, the first partition from top vertical insertion chamber is provided with chamber, the second partition that chamber is inserted vertically into from bottom is provided with chamber, the height of air stream outlet position and the size of air stream outlet on drying tower can be adjusted by the position adjusted between first partition and second partition, and then the particle size for the material for making to discharge from chamber with air-flow and the number of material discharge rate can be controlled flexibly, the present invention is additionally provided with weighing system.
Description
Technical field
The present invention relates to drying device field, particularly a kind of spray dryer.
Background technology
Spray dryer be it is a kind of can realize simultaneously dry and be granulated equipment, operation principle be air it is filtered and plus
Heat, into drier headspace distributor, hot-air is in the shape of a spiral evenly into hothouse.Feed liquid is through the height at the top of tower body
Fast centrifugal atomizer, spray into imperceptible vaporific liquid pearl, can be dried within the extremely short time with hot-air current contacting for into
Product.Finished product is continuously exported by drying in tower bottom and cyclone separator.
Existing spray dryer, for the material after the granulating and drying in drying tower, typically there are two kinds of collection modes：The
One kind, material is directly connected into air-flow from tower bottom discharge is dried, then passes through cyclone separator or corresponding separation equipment
The separation of feed material and gas, and then realize the collection of material；Second, one collection device is set in the bottom of drying tower,
Corresponding air stream outlet is set in the medium position of drying tower simultaneously, in order to collect the material carried away from air stream outlet, one
As be provided with cyclone separator in air stream outlet connect, to realize the separation of material and gas, accordingly under cyclone separator
Side is also equipped with collection device.In above two collection mode, second of collection mode can be effectively reduced to cyclone separator
Dependence, because most of material directly can be collected drying tower bottom, thus cyclone separator to the treating capacity of material more
It is low, while material can be divided into two parts, and generally, be more than in the material particular diameter that drying tower is collected directly below
The material particular diameter collected below cyclone separator.So, you can the material for the different-grain diameter collected by two collection devices, with
For different use demands.Therefore for the first collection mode, it has bigger excellent collection mode in second
Gesture.However, in existing above-mentioned second of collection mode, the position of the air stream outlet set on drying tower and air stream outlet
Size is fixed, therefore can not be adjusted according to different materials, and its versatility is not strong；In addition, also can not be actively
Adjust the collection proportionate relationship of the material particular diameter and material in two collection devices.
, it is necessary to will after the completion of rewinding and the material-receiving device of existing spray dryer is only a material collector
Material in collector re-starts weighing packing, and material collector carries out rewinding without standard measure, can increase a follow-up work
Make process, make the collection of material become trouble.
The content of the invention
To solve problems of the prior art, it is an object of the invention to provide the air stream outlet position on a kind of drying tower
Put the spray dryer that and discharging opening bottom adjustable with air stream outlet size is provided with weighing system.
To achieve the above object, the technical solution adopted by the present invention is：A kind of spray dryer, including drying tower, whirlwind
Separator, high speed centrifugal atomization device；Hot wind inlet is provided with the top of the drying tower, the high speed centrifugal atomization device passes through drying tower
Top center after the nozzle of high speed centrifugal atomization device be located at top in drying tower, and the high speed centrifugal atomization device with it is described
The concentric setting of drying tower, the high speed centrifugal atomization device are provided with charging aperture, and the top of the cyclone separator is provided with air-out
Mouthful；The side wall of the drying tower and the side wall of the cyclone separator are provided with vertically coconnected chamber, the chamber
It is interior to be provided with the first partition that the chamber is inserted from top vertical, it is provided with the chamber from bottom and is inserted vertically into the chamber
Second partition, and the first partition and the length of the second partition are all higher than the length of the chamber vertically, institute
The top for stating chamber inner wall is provided with two groups of relative first limited blocks with the first partition slide fit, the bottom of the chamber inner wall
Portion is provided with two groups of relative second limited blocks with the second partition slide fit, when the first partition and the second partition exist
When being slided in the chamber, the first partition staggers with the second partition position and is close to slide；The drying tower and the rotation
Discharging opening is equipped with wind separator bottom axle center, discharging auger driven by stepper motors, institute are arranged with the discharging opening
State discharging opening bottom and be provided with weighing system, the weighing system includes support bar, cross bar, counterweight frame and hopper, the support bar
It is vertically arranged, and the support bar, be hinged in the middle part of the cross bar, described cross bar one end is provided with the counterweight frame, and the cross bar is another
One end is provided with the hopper, and the hopper is located at immediately below the discharging opening.
The slurries for needing to dry and being granulated are sent into drying tower by the charging aperture on high speed centrifugal atomization device, from dry tower top
The hot wind inlet in portion is passed through hot blast, and slurries spray from the nozzle of high speed centrifugal atomization device, and thermal current is from drying in drying tower
To flows, it is in vaporific liquid that injection is quickly dried by thermal current, and then forms solid granule thing at the top of tower
Material.When first partition and second partition in chamber are slided in the chamber, the first partition is wrong with the second partition position
Open and be close to slide, first partition is down slided, and second partition up slides, the gas channel that two pieces of dividing plates are formed in chamber
Can from large to small, user according to being actually needed, can determine the size of gas channel；In addition, can upwardly or downwardly it slide simultaneously
Dynamic first partition and second partition, adjust the position of gas channel in the vertical direction.By adjust first partition and second every
Position between plate can adjust the height of air stream outlet position and the size of air stream outlet on drying tower, and then make with air-flow
From chamber discharge material particle size and material discharge rate number can flexibly control, and adjust get up it is convenient and swift.
The discharging opening inner sleeve of drying tower and cyclone separator sets out material auger, and discharging auger is passed through by driving stepper motor
The rotating speed of stepper motor is controlled to control the speed of discharging, the bottom of discharging opening is provided with weighing system, can be according to reality before discharging
Border need to be put into the counterweight inframe needed for weight counterweight, due to be hinged in the middle part of support bar and cross bar, during discharging, work as cross bar
When being horizontal, according to lever principle, the weight of counterweight of the weight of the material in hopper with being put into counterweight inframe is identical,
So that discharging each time is attained by required amount, discharging auger plays the effect of quantitative blowing, avoids follow-up work
Personnel need to carry out weighing packing, reduce process, improve productivity effect.
Preferably, seal washer, the first partition and institute are provided between the first partition and first limited block
State and be provided with seal washer between chamber inner wall, seal washer is provided between the second partition and second limited block, it is described
Seal washer is provided between second partition and the chamber inner wall.Seal washer can avoid the air-flow in drying tower from leaking.
Preferably, the vertical plane and the first partition lowermost end of the first partition close second partition in chamber
Face between be provided with chamfering, the second partition most pushes up in chamber close to the vertical plane of the first partition with the second partition
Chamfering is provided between the face at end.When first partition and second partition slide in chamber, during two pieces of baffle contacts, by setting
Angle, the smooth contact of two pieces of dividing plates can be enable.
Preferably, the face of the first partition lowermost end and the face of the second partition top are semicircle shape.It is actual raw
In production, or other shapes, as long as after making first partition and second partition contact, two pieces of dividing plates can be made by continuing slip
The gas channel formed reduces.
Preferably, the first partition is provided close to the drying tower one with position of the second partition in chamber
Side.The gas channel that first partition and second partition are formed closer to drying tower, first partition and second partition just closer to
Drying tower, the effect of material of the gas channel in drying tower, cyclone separator absorption dehydration tower will be more obvious.
Preferably, the drying tower, cyclone separator and chamber are transparent material.With transparent material primarily to being easy to
Observation first partition and second partition form the size of gas channel and the height of gas channel position, convenient by adjusting the
One dividing plate and second partition adjust particle size and the material that enters in cyclone separator into material in cyclone separator
Amount.
Preferably, the high speed centrifugal atomization device is two-fluid spray nozzle.Two-fluid spray nozzle can make atomizing particle it is very tiny,
Uniformly, ensure evaporating completely and atomised spray area coverage is big.
Preferably, the cross bar is provided with horizon rule.Horizon rule can more intuitively observe the weight of material in weighing system
Whether amount and the weight of counterweight match,, can be by changing stepper motor when both weight will match in actual production
Rotating speed, to control the load of discharging auger, use more convenient.
Preferably, drying tower and the cyclone separator inwall scribbles Teflon.Teflon has outstanding excellent combination
Performance, high temperature resistant, corrosion-resistant, not viscous, self-lubricating, very low coefficient of friction, will not thus make material be bonded in drying tower and
The inwall of cyclone separator.
The beneficial effects of the invention are as follows：
1st, the air stream outlet position on drying tower can be adjusted by the position adjusted between first partition and second partition
Height and air stream outlet size, and then make the more of the particle size of material discharged with air-flow from chamber and material discharge rate
It can flexibly control less, and adjust convenient and swift.
The 2nd, weighing system is set, discharging each time is attained by required amount, stepper motor driven discharging auger
The effect of quantitative blowing is played, avoiding follow-up work personnel needs to carry out weighing packing, reduces process, improves production effect
Benefit, make weighing system simple in construction using lever principle.
3rd, using two-fluid spray nozzle can make atomizing particle it is very tiny, it is uniform, ensure that evaporating completely and atomised spray cover
Area is big.
4th, horizon rule is set on the cross bar of weighing system, makes the weight of the alleged material obtained more accurate.
5th, drying tower and cyclone separator inwall scribble Teflon, and Teflon has outstanding excellent comprehensive performance, resistance to height
Temperature, corrosion-resistant, not viscous, self-lubricating, very low coefficient of friction, will not thus make material be bonded in drying tower and cyclone separator
Inwall.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention；
Fig. 2 is the partial schematic diagram that chamber side of the embodiment of the present invention regards；
Fig. 3 is the partial schematic diagram that chamber of the embodiment of the present invention is overlooked；
Fig. 4 is details of embodiment of the present invention A structural representation；
Fig. 5 is first partition of the embodiment of the present invention and the structural representation of second partition one of which position relationship；
Fig. 6 is first partition of the embodiment of the present invention and the structural representation of second partition one of which position relationship；
Fig. 7 is first partition of the embodiment of the present invention and the structural representation of second partition one of which position relationship；
Fig. 8 is first partition of the embodiment of the present invention and the structural representation of second partition one of which position relationship；
Reference：1- drying towers, 2- cyclone separators, 3- high speed centrifugal atomization devices, 4- hot wind inlets, 5- charging apertures,
6- air outlets, 7- chambers, 8- first partitions, 9- second partitions, the limited blocks of 10- first, the limited blocks of 11- second, 12- discharging openings,
13- stepper motors, 14- discharging augers, 15- support bars, 16- cross bars, 17- counterweight frames, 18- hoppers, 19- seal washers.
Embodiment
Embodiments of the invention are described in detail below in conjunction with the accompanying drawings.
Embodiment
As Figure 1-Figure 8, to achieve the above object, the technical solution adopted by the present invention is：A kind of spray dryer, bag
Include drying tower 1, cyclone separator 2, high speed centrifugal atomization device 3；The top of the drying tower 1 is provided with hot wind inlet 4, the high speed from
The nozzle of heart atomizer 3 through high speed centrifugal atomization device 3 behind the top center of drying tower 1 is located at the top in drying tower 1, and institute
High speed centrifugal atomization device 3 and the 1 concentric setting of drying tower are stated, the high speed centrifugal atomization device 3 is provided with charging aperture 5, institute
The top for stating cyclone separator 2 is provided with air outlet 6；The side wall of the drying tower 1 and the side wall of the cyclone separator 2 are provided with edge
The coconnected chamber 7 of vertical direction, the interior first partition 8 being provided with from the top vertical insertion chamber 7 of the chamber 7 are described
The second partition 9 that the chamber 7 is inserted vertically into from bottom, and the first partition 8 and the second partition 9 are provided with chamber 7
Length be all higher than the length of the chamber 7 vertically, the top of the inwall of chamber 7 be provided with two groups it is relative with it is described
First limited block 10 of the slide fit of first partition 8, the bottom of the inwall of chamber 7 be provided with two groups it is relative with the second partition 9
Second limited block 11 of slide fit, when the first partition 8 and the second partition 9 slide in the chamber 7, this first every
Plate 8 staggers with the position of second partition 9 and is close to slide；The drying tower 1 at the bottom axle center of cyclone separator 2 with being all provided with
There is discharging opening 12, the discharging auger 14 driven by stepper motor 13, the bottom of discharging opening 12 are arranged with the discharging opening 12
Provided with weighing system, the weighing system includes support bar 15, cross bar 16, counterweight frame 17 and hopper 18, and the support bar 15 hangs down
It is straight to set, and the support bar 15 and the middle part of cross bar 16 are be hinged, described one end of cross bar 16 is provided with the counterweight frame 17, described
The other end of cross bar 16 is provided with the hopper 18, and the hopper 18 is immediately below the discharging opening 12.
The slurries for needing to dry and be granulated are sent into drying tower 1 by the charging aperture 5 on high speed centrifugal atomization device 3, from drying
The hot wind inlet 4 at the top of tower 1 is passed through hot blast, and slurries spray from the nozzle of high speed centrifugal atomization device 3, the hot gas in drying tower 1
It is in vaporific liquid that stream quickly dries injection from the top of drying tower 1 to flows, by thermal current, and then forms solid
Small particles material.When first partition 8 and second partition 9 in chamber 7 are slided in the chamber 7, the first partition 8 with this
The position of two dividing plate 9 is staggered and is close to slide, and first partition 8 is down slided, and second partition 9 up slides, and two pieces of dividing plates are in chamber 7
The gas channel of interior formation can from large to small, and user according to being actually needed, can determine the size of gas channel；In addition, can be same
When upwardly or downwardly slide first partition 8 and second partition 9, adjust the position of gas channel in the vertical direction.Pass through tune
Position between section first partition 8 and second partition 9 can adjust the gentle outflow of height of the air stream outlet position on drying tower 1
Mouthful size, and then the particle size for the material for making to discharge from chamber 7 with air-flow and material discharge rate number can flexibly control
System, and adjust convenient and swift.
The inner sleeve of discharging opening 12 of drying tower 1 and cyclone separator 2 sets out material auger 14, and discharging auger 14 is by stepper motor 13
Driving, the speed of discharging is controlled by controlling the rotating speed of stepper motor 13, and the bottom of discharging opening 12 is provided with weighing system, discharging
Before, can according to needed for being actually needed and be put into the counterweight frame 17 weight counterweight, due in support bar 15 and cross bar 16
Portion is hinged, and during discharging, when cross bar 16 is horizontal, according to lever principle, the weight of the material in hopper 18 is with being put into
The weight of counterweight in counterweight frame 17 is identical, so that discharging each time is attained by required amount, discharging auger 14 plays
The effect of quantitative blowing, avoiding follow-up work personnel needs to carry out weighing packing, reduces process, improves productivity effect.
In another embodiment, as Figure 1-Figure 8, between the first partition 8 and first limited block 10
Provided with seal washer 19, be provided with seal washer 19 between the first partition 8 and the inwall of the chamber 7, the second partition 9 with
Seal washer 19 is provided between second limited block 11, sealing gasket is provided between second partition 9 and the chamber 7 inwall
Circle 19.Seal washer 19 can avoid the air-flow in drying tower 1 from leaking.
In another embodiment, as depicted in figs. 1 and 2, the first partition 8 is close described second in chamber 7
Chamfering is provided between the face of the vertical plane of dividing plate 9 and the lowermost end of first partition 8, the second partition 9 is in chamber 7 close to institute
State and be provided with chamfering between the vertical plane of first partition 8 and the face of the top of second partition 9.When first partition 8 and second partition 9
7 slide in chamber, during two pieces of baffle contacts, by setting chamfering, can enable the smooth contact of two pieces of dividing plates.
In another embodiment, as shown in Fig. 1, Fig. 2, Fig. 3, Fig. 5, Fig. 6, Fig. 7 and Fig. 8, the first partition 8 is most
The face of bottom and the face of the top of second partition 9 are semicircle shape.In actual production, or other shapes, only
After first partition 8 and the contact of second partition 9 can be made, continue to slide the gas channel reduction that can be formed two pieces of dividing plates i.e.
Can.
In another embodiment, as depicted in figs. 1 and 2, the first partition 8 and the second partition 9 are in chamber 7
Interior position is provided close to the side of drying tower 1.First partition 8 and second partition 9 are closer to drying tower 1, the He of first partition 8
The gas channel that second partition 9 is formed just is inhaled closer to drying tower 1, gas channel closer to drying tower 1, cyclone separator 2
The effect for receiving the material in drying tower 1 will be more obvious.
In another embodiment, as shown in figure 1, the drying tower 1, cyclone separator 2 and chamber 7 are transparent material
Matter.With transparent material primarily to being easy to observation first partition 8 and second partition 9 to form the size and air-flow of gas channel
The height of channel position, it is convenient to be adjusted by adjusting first partition 8 and second partition 9 into material in cyclone separator 2
Particle size and the inventory entered in cyclone separator 2.
In another embodiment, as shown in figure 1, the high speed centrifugal atomization device 3 is two-fluid spray nozzle.Two-fluid sprays
Mouth can make atomizing particle it is very tiny, it is uniform, ensure evaporating completely and atomised spray area coverage is big.
In another embodiment, as shown in figure 1, the cross bar 16 is provided with horizon rule (not marked in figure).It is horizontal
Chi can more intuitively observe whether the weight of material and the weight of counterweight in weighing system match, in actual production, when both
When weight will match, to control the load of discharging auger 14, it can be used by changing the rotating speed of stepper motor 13
It is more convenient.
In another embodiment, drying tower 1 and cyclone separator 2 inwall scribbles Teflon and (not marked in figure
Go out).Teflon has an outstanding excellent comprehensive performance, high temperature resistant, corrosion-resistant, not viscous, self-lubricating, very low coefficient of friction, this
Sample would not make material be bonded in the inwall of drying tower 1 and cyclone separator 2.
Embodiment described above only expresses the embodiment of the present invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.
Claims (9)
1. a kind of spray dryer, it is characterised in that including drying tower, cyclone separator, high speed centrifugal atomization device；The drying
Top of tower is provided with hot wind inlet, spray of the high speed centrifugal atomization device through high speed centrifugal atomization device behind the top center of drying tower
Mouth is located at the top in drying tower, and the high speed centrifugal atomization device and the concentric setting of the drying tower, the high speed centrifugation
Atomizer is provided with charging aperture, and the top of the cyclone separator is provided with air outlet；The side wall of the drying tower and the whirlwind
The side wall of separator is provided with vertically coconnected chamber, is provided with the chamber from top vertical and inserts the chamber
First partition, is provided with the second partition that the chamber is inserted vertically into from bottom in the chamber, and the first partition and described
The length of second partition is all higher than the length of the chamber vertically, the top of the chamber inner wall be provided with two groups it is relative
With the first limited block of the first partition slide fit, the bottom of the chamber inner wall be provided with two groups it is relative with the second partition
Second limited block of slide fit, when the first partition and the second partition slide in the chamber, the first partition with
Stagger and be close to slide in the second partition position；The drying tower at the axle center of the cyclone separator bottom with being equipped with discharging
Mouthful, discharging auger driven by stepper motors is arranged with the discharging opening, the discharging opening bottom is provided with weighing system, described
Weighing system includes support bar, cross bar, counterweight frame and hopper, and the support bar is vertically arranged, and the support bar and the horizontal stroke
Be hinged in the middle part of bar, described cross bar one end is provided with the counterweight frame, and the cross bar other end is provided with the hopper, and the hopper is located at
Immediately below the discharging opening.
2. spray dryer according to claim 1, it is characterised in that between the first partition and first limited block
Provided with seal washer, seal washer is provided between the first partition and the chamber inner wall, the second partition and described the
Seal washer is provided between two limited blocks, seal washer is provided between the second partition and the chamber inner wall.
3. spray dryer according to claim 1, it is characterised in that the first partition is in chamber close to described second
It is provided with chamfering between the face of the vertical plane of dividing plate and the first partition lowermost end, the second partition is in chamber close to described the
Chamfering is provided between the face of the vertical plane of one dividing plate and the second partition top.
4. spray dryer according to claim 1, it is characterised in that the face of the first partition lowermost end and described second
The face of dividing plate top is semicircle shape.
5. spray dryer according to claim 1, it is characterised in that the first partition is with the second partition in chamber
Interior position is provided close to the drying tower side.
6. spray dryer according to claim 1, it is characterised in that the drying tower, cyclone separator and chamber are
Bright material.
7. spray dryer according to claim 1, it is characterised in that the high speed centrifugal atomization device is two-fluid spray nozzle.
8. spray dryer according to claim 1, it is characterised in that the cross bar is provided with horizon rule.
9. spray dryer according to claim 1, it is characterised in that drying tower and the cyclone separator inwall scribbles spy
Fluorine dragon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711099528.9A CN107875659A (en) | 2017-11-09 | 2017-11-09 | A kind of spray dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711099528.9A CN107875659A (en) | 2017-11-09 | 2017-11-09 | A kind of spray dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107875659A true CN107875659A (en) | 2018-04-06 |
Family
ID=61779894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711099528.9A Withdrawn CN107875659A (en) | 2017-11-09 | 2017-11-09 | A kind of spray dryer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107875659A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111841440A (en) * | 2019-04-26 | 2020-10-30 | 宁德时代新能源科技股份有限公司 | Drying and screening device and drying and screening equipment |
-
2017
- 2017-11-09 CN CN201711099528.9A patent/CN107875659A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111841440A (en) * | 2019-04-26 | 2020-10-30 | 宁德时代新能源科技股份有限公司 | Drying and screening device and drying and screening equipment |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180406 |
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